Backmerge tag 'v4.16-rc7' into drm-next

Linux 4.16-rc7

This was requested by Daniel, and things were getting
a bit hard to reconcile, most of the conflicts were
trivial though.

1554 files changed, 17357 insertions, 10527 deletions

diff --git a/.gitignore b/.gitignore
index 705e09913dc2..1be78fd8163b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -127,3 +127,7 @@ all.config
 
 # Kdevelop4
 *.kdev4
+
+#Automatically generated by ASN.1 compiler
+net/ipv4/netfilter/nf_nat_snmp_basic-asn1.c
+net/ipv4/netfilter/nf_nat_snmp_basic-asn1.h
diff --git a/Documentation/ABI/testing/sysfs-ata b/Documentation/ABI/testing/sysfs-ata
index aa4296498859..9ab0ef1dd1c7 100644
--- a/Documentation/ABI/testing/sysfs-ata
+++ b/Documentation/ABI/testing/sysfs-ata
@@ -1,110 +1,139 @@
 What:           /sys/class/ata_...
-Date:           August 2008
-Contact:        Gwendal Grignou<gwendal@google.com>
 Description:
-
-Provide a place in sysfs for storing the ATA topology of the system.  This allows
-retrieving various information about ATA objects.
+                Provide a place in sysfs for storing the ATA topology of the
+                system. This allows retrieving various information about ATA
+                objects.
 
 Files under /sys/class/ata_port
 -------------------------------
 
-        For each port, a directory ataX is created where X is the ata_port_id of
-        the port. The device parent is the ata host device.
+For each port, a directory ataX is created where X is the ata_port_id of the
+port. The device parent is the ata host device.
 
-idle_irq (read)
 
-        Number of IRQ received by the port while idle [some ata HBA only].
+What:           /sys/class/ata_port/ataX/nr_pmp_links
+What:           /sys/class/ata_port/ataX/idle_irq
+Date:           May, 2010
+KernelVersion:  v2.6.37
+Contact:        Gwendal Grignou <gwendal@chromium.org>
+Description:
+                nr_pmp_links:   (RO) If a SATA Port Multiplier (PM) is
+                                connected, the number of links behind it.
 
-nr_pmp_links (read)
+                idle_irq:       (RO) Number of IRQ received by the port while
+                                idle [some ata HBA only].
 
-        If a SATA Port Multiplier (PM) is connected, number of link behind it.
+
+What:           /sys/class/ata_port/ataX/port_no
+Date:           May, 2013
+KernelVersion:  v3.11
+Contact:        Gwendal Grignou <gwendal@chromium.org>
+Description:
+                (RO) Host local port number. While registering host controller,
+                port numbers are tracked based upon number of ports available on
+                the controller. This attribute is needed by udev for composing
+                persistent links in /dev/disk/by-path.
 
 Files under /sys/class/ata_link
 -------------------------------
 
-        Behind each port, there is a ata_link. If there is a SATA PM in the
-        topology, 15 ata_link objects are created.
-
-        If a link is behind a port, the directory name is linkX, where X is
-        ata_port_id of the port.
-        If a link is behind a PM, its name is linkX.Y where X is ata_port_id
-        of the parent port and Y the PM port.
+Behind each port, there is a ata_link. If there is a SATA PM in the topology, 15
+ata_link objects are created.
 
-hw_sata_spd_limit
+If a link is behind a port, the directory name is linkX, where X is ata_port_id
+of the port. If a link is behind a PM, its name is linkX.Y where X is
+ata_port_id of the parent port and Y the PM port.
 
-        Maximum speed supported by the connected SATA device.
 
-sata_spd_limit
+What:           /sys/class/ata_link/linkX[.Y]/hw_sata_spd_limit
+What:           /sys/class/ata_link/linkX[.Y]/sata_spd_limit
+What:           /sys/class/ata_link/linkX[.Y]/sata_spd
+Date:           May, 2010
+KernelVersion:  v2.6.37
+Contact:        Gwendal Grignou <gwendal@chromium.org>
+Description:
+                hw_sata_spd_limit:      (RO) Maximum speed supported by the
+                                        connected SATA device.
 
-        Maximum speed imposed by libata.
+                sata_spd_limit:         (RO) Maximum speed imposed by libata.
 
-sata_spd
+                sata_spd:               (RO) Current speed of the link
+                                        eg. 1.5, 3 Gbps etc.
 
-        Current speed of the link [1.5, 3Gps,...].
 
 Files under /sys/class/ata_device
 ---------------------------------
 
-        Behind each link, up to two ata device are created.
-        The name of the directory is devX[.Y].Z where:
-        - X is ata_port_id of the port where the device is connected,
-        - Y the port of the PM if any, and
-        - Z the device id: for PATA, there is usually 2 devices [0,1],
-        only 1 for SATA.
-
-class
-        Device class. Can be "ata" for disk, "atapi" for packet device,
-        "pmp" for PM, or "none" if no device was found behind the link.
-
-dma_mode
+Behind each link, up to two ata devices are created.
+The name of the directory is devX[.Y].Z where:
+- X is ata_port_id of the port where the device is connected,
+- Y the port of the PM if any, and
+- Z the device id: for PATA, there is usually 2 devices [0,1], only 1 for SATA.
+
+
+What:           /sys/class/ata_device/devX[.Y].Z/spdn_cnt
+What:           /sys/class/ata_device/devX[.Y].Z/gscr
+What:           /sys/class/ata_device/devX[.Y].Z/ering
+What:           /sys/class/ata_device/devX[.Y].Z/id
+What:           /sys/class/ata_device/devX[.Y].Z/pio_mode
+What:           /sys/class/ata_device/devX[.Y].Z/xfer_mode
+What:           /sys/class/ata_device/devX[.Y].Z/dma_mode
+What:           /sys/class/ata_device/devX[.Y].Z/class
+Date:           May, 2010
+KernelVersion:  v2.6.37
+Contact:        Gwendal Grignou <gwendal@chromium.org>
+Description:
+                spdn_cnt:       (RO) Number of times libata decided to lower the
+                                speed of link due to errors.
 
-        Transfer modes supported by the device when in DMA mode.
-        Mostly used by PATA device.
+                gscr:           (RO) Cached result of the dump of PM GSCR
+                                register. Valid registers are:
 
-pio_mode
+                                0:      SATA_PMP_GSCR_PROD_ID,
+                                1:      SATA_PMP_GSCR_REV,
+                                2:      SATA_PMP_GSCR_PORT_INFO,
+                                32:     SATA_PMP_GSCR_ERROR,
+                                33:     SATA_PMP_GSCR_ERROR_EN,
+                                64:     SATA_PMP_GSCR_FEAT,
+                                96:     SATA_PMP_GSCR_FEAT_EN,
+                                130:    SATA_PMP_GSCR_SII_GPIO
 
-        Transfer modes supported by the device when in PIO mode.
-        Mostly used by PATA device.
+                                Only valid if the device is a PM.
 
-xfer_mode
+                ering:          (RO) Formatted output of the error ring of the
+                                device.
 
-        Current transfer mode.
+                id:             (RO) Cached result of IDENTIFY command, as
+                                described in ATA8 7.16 and 7.17. Only valid if
+                                the device is not a PM.
 
-id
+                pio_mode:       (RO) Transfer modes supported by the device when
+                                in PIO mode. Mostly used by PATA device.
 
-        Cached result of IDENTIFY command, as described in ATA8 7.16 and 7.17.
-        Only valid if the device is not a PM.
+                xfer_mode:      (RO) Current transfer mode
 
-gscr
+                dma_mode:       (RO) Transfer modes supported by the device when
+                                in DMA mode. Mostly used by PATA device.
 
-        Cached result of the dump of PM GSCR register.
-        Valid registers are:
-        0:      SATA_PMP_GSCR_PROD_ID,
-        1:      SATA_PMP_GSCR_REV,
-        2:      SATA_PMP_GSCR_PORT_INFO,
-        32:     SATA_PMP_GSCR_ERROR,
-        33:     SATA_PMP_GSCR_ERROR_EN,
-        64:     SATA_PMP_GSCR_FEAT,
-        96:     SATA_PMP_GSCR_FEAT_EN,
-        130:    SATA_PMP_GSCR_SII_GPIO
-        Only valid if the device is a PM.
+                class:          (RO) Device class. Can be "ata" for disk,
+                                "atapi" for packet device, "pmp" for PM, or
+                                "none" if no device was found behind the link.
 
-trim
 
-        Shows the DSM TRIM mode currently used by the device. Valid
-        values are:
-        unsupported:            Drive does not support DSM TRIM
-        unqueued:               Drive supports unqueued DSM TRIM only
-        queued:                 Drive supports queued DSM TRIM
-        forced_unqueued:        Drive's queued DSM support is known to be
-                                buggy and only unqueued TRIM commands
-                                are sent
+What:           /sys/class/ata_device/devX[.Y].Z/trim
+Date:           May, 2015
+KernelVersion:  v4.10
+Contact:        Gwendal Grignou <gwendal@chromium.org>
+Description:
+                (RO) Shows the DSM TRIM mode currently used by the device. Valid
+                values are:
 
-spdn_cnt
+                unsupported:            Drive does not support DSM TRIM
 
-        Number of time libata decided to lower the speed of link due to errors.
+                unqueued:               Drive supports unqueued DSM TRIM only
 
-ering
+                queued:                 Drive supports queued DSM TRIM
 
-        Formatted output of the error ring of the device.
+                forced_unqueued:        Drive's queued DSM support is known to
+                                        be buggy and only unqueued TRIM commands
+                                        are sent
diff --git a/Documentation/ABI/testing/sysfs-block-device b/Documentation/ABI/testing/sysfs-block-device
new file mode 100644
index 000000000000..82ef6eab042d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-block-device
@@ -0,0 +1,58 @@
+What:           /sys/block/*/device/sw_activity
+Date:           Jun, 2008
+KernelVersion:  v2.6.27
+Contact:        linux-ide@vger.kernel.org
+Description:
+                (RW) Used by drivers which support software controlled activity
+                LEDs.
+
+                It has the following valid values:
+
+                0       OFF - the LED is not activated on activity
+                1       BLINK_ON - the LED blinks on every 10ms when activity is
+                        detected.
+                2       BLINK_OFF - the LED is on when idle, and blinks off
+                        every 10ms when activity is detected.
+
+                Note that the user must turn sw_activity OFF it they wish to
+                control the activity LED via the em_message file.
+
+
+What:           /sys/block/*/device/unload_heads
+Date:           Sep, 2008
+KernelVersion:  v2.6.28
+Contact:        linux-ide@vger.kernel.org
+Description:
+                (RW) Hard disk shock protection
+
+                Writing an integer value to this file will take the heads of the
+                respective drive off the platter and block all I/O operations
+                for the specified number of milliseconds.
+
+                - If the device does not support the unload heads feature,
+                  access is denied with -EOPNOTSUPP.
+                - The maximal value accepted for a timeout is 30000
+                  milliseconds.
+                - A previously set timeout can be cancelled and disk can resume
+                  normal operation immediately by specifying a timeout of 0.
+                - Some hard drives only comply with an earlier version of the
+                  ATA standard, but support the unload feature nonetheless.
+                  There is no safe way Linux can detect these devices, so this
+                  is not enabled by default. If it is known that your device
+                  does support the unload feature, then you can tell the kernel
+                  to enable it by writing -1. It can be disabled again by
+                  writing -2.
+                - Values below -2 are rejected with -EINVAL
+
+                For more information, see
+                Documentation/laptops/disk-shock-protection.txt
+
+
+What:           /sys/block/*/device/ncq_prio_enable
+Date:           Oct, 2016
+KernelVersion:  v4.10
+Contact:        linux-ide@vger.kernel.org
+Description:
+                (RW) Write to the file to turn on or off the SATA ncq (native
+                command queueing) support. By default this feature is turned
+                off.
diff --git a/Documentation/ABI/testing/sysfs-class-scsi_host b/Documentation/ABI/testing/sysfs-class-scsi_host
index 0eb255e7db12..bafc59fd7b69 100644
--- a/Documentation/ABI/testing/sysfs-class-scsi_host
+++ b/Documentation/ABI/testing/sysfs-class-scsi_host
@@ -27,3 +27,92 @@ Description:	This file contains the current status of the "SSD Smart Path"
                 the direct i/o path to physical devices.  This setting is
                 controller wide, affecting all configured logical drives on the
                 controller.  This file is readable and writable.
+
+What:           /sys/class/scsi_host/hostX/link_power_management_policy
+Date:           Oct, 2007
+KernelVersion:  v2.6.24
+Contact:        linux-ide@vger.kernel.org
+Description:
+                (RW) This parameter allows the user to read and set the link
+                (interface) power management.
+
+                There are four possible options:
+
+                min_power: Tell the controller to try to make the link use the
+                least possible power when possible. This may sacrifice some
+                performance due to increased latency when coming out of lower
+                power states.
+
+                max_performance: Generally, this means no power management.
+                Tell the controller to have performance be a priority over power
+                management.
+
+                medium_power: Tell the controller to enter a lower power state
+                when possible, but do not enter the lowest power state, thus
+                improving latency over min_power setting.
+
+                med_power_with_dipm: Identical to the existing medium_power
+                setting except that it enables dipm (device initiated power
+                management) on top, which makes it match the Windows IRST (Intel
+                Rapid Storage Technology) driver settings. This setting is also
+                close to min_power, except that:
+                a) It does not use host-initiated slumber mode, but it does
+                allow device-initiated slumber
+                b) It does not enable low power device sleep mode (DevSlp).
+
+What:           /sys/class/scsi_host/hostX/em_message
+What:           /sys/class/scsi_host/hostX/em_message_type
+Date:           Jun, 2008
+KernelVersion:  v2.6.27
+Contact:        linux-ide@vger.kernel.org
+Description:
+                em_message: (RW) Enclosure management support. For the LED
+                protocol, writes and reads correspond to the LED message format
+                as defined in the AHCI spec.
+
+                The user must turn sw_activity (under /sys/block/*/device/) OFF
+                it they wish to control the activity LED via the em_message
+                file.
+
+                em_message_type: (RO) Displays the current enclosure management
+                protocol that is being used by the driver (for eg. LED, SAF-TE,
+                SES-2, SGPIO etc).
+
+What:           /sys/class/scsi_host/hostX/ahci_port_cmd
+What:           /sys/class/scsi_host/hostX/ahci_host_caps
+What:           /sys/class/scsi_host/hostX/ahci_host_cap2
+Date:           Mar, 2010
+KernelVersion:  v2.6.35
+Contact:        linux-ide@vger.kernel.org
+Description:
+                [to be documented]
+
+What:           /sys/class/scsi_host/hostX/ahci_host_version
+Date:           Mar, 2010
+KernelVersion:  v2.6.35
+Contact:        linux-ide@vger.kernel.org
+Description:
+                (RO) Display the version of the AHCI spec implemented by the
+                host.
+
+What:           /sys/class/scsi_host/hostX/em_buffer
+Date:           Apr, 2010
+KernelVersion:  v2.6.35
+Contact:        linux-ide@vger.kernel.org
+Description:
+                (RW) Allows access to AHCI EM (enclosure management) buffer
+                directly if the host supports EM.
+
+                For eg. the AHCI driver supports SGPIO EM messages but the
+                SATA/AHCI specs do not define the SGPIO message format of the EM
+                buffer. Different hardware(HW) vendors may have different
+                definitions. With the em_buffer attribute, this issue can be
+                solved by allowing HW vendors to provide userland drivers and
+                tools for their SGPIO initiators.
+
+What:           /sys/class/scsi_host/hostX/em_message_supported
+Date:           Oct, 2009
+KernelVersion:  v2.6.39
+Contact:        linux-ide@vger.kernel.org
+Description:
+                (RO) Displays supported enclosure management message types.
diff --git a/Documentation/ABI/testing/sysfs-devices-platform-dock b/Documentation/ABI/testing/sysfs-devices-platform-dock
new file mode 100644
index 000000000000..1d8c18f905c7
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-platform-dock
@@ -0,0 +1,39 @@
+What:           /sys/devices/platform/dock.N/docked
+Date:           Dec, 2006
+KernelVersion:  2.6.19
+Contact:        linux-acpi@vger.kernel.org
+Description:
+                (RO) Value 1 or 0 indicates whether the software believes the
+                laptop is docked in a docking station.
+
+What:           /sys/devices/platform/dock.N/undock
+Date:           Dec, 2006
+KernelVersion:  2.6.19
+Contact:        linux-acpi@vger.kernel.org
+Description:
+                (WO) Writing to this file causes the software to initiate an
+                undock request to the firmware.
+
+What:           /sys/devices/platform/dock.N/uid
+Date:           Feb, 2007
+KernelVersion:  v2.6.21
+Contact:        linux-acpi@vger.kernel.org
+Description:
+                (RO) Displays the docking station the laptop is docked to.
+
+What:           /sys/devices/platform/dock.N/flags
+Date:           May, 2007
+KernelVersion:  v2.6.21
+Contact:        linux-acpi@vger.kernel.org
+Description:
+                (RO) Show dock station flags, useful for checking if undock
+                request has been made by the user (from the immediate_undock
+                option).
+
+What:           /sys/devices/platform/dock.N/type
+Date:           Aug, 2008
+KernelVersion:  v2.6.27
+Contact:        linux-acpi@vger.kernel.org
+Description:
+                (RO) Display the dock station type- dock_station, ata_bay or
+                battery_bay.
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index bfd29bc8d37a..4ed63b6cfb15 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -108,6 +108,8 @@ Description:	CPU topology files that describe a logical CPU's relationship
 
 What:           /sys/devices/system/cpu/cpuidle/current_driver
                 /sys/devices/system/cpu/cpuidle/current_governer_ro
+                /sys/devices/system/cpu/cpuidle/available_governors
+                /sys/devices/system/cpu/cpuidle/current_governor
 Date:           September 2007
 Contact:        Linux kernel mailing list <linux-kernel@vger.kernel.org>
 Description:    Discover cpuidle policy and mechanism
@@ -119,13 +121,84 @@ Description:	Discover cpuidle policy and mechanism
                 Idle policy (governor) is differentiated from idle mechanism
                 (driver)
 
-                current_driver: displays current idle mechanism
+                current_driver: (RO) displays current idle mechanism
 
-                current_governor_ro: displays current idle policy
+                current_governor_ro: (RO) displays current idle policy
+
+                With the cpuidle_sysfs_switch boot option enabled (meant for
+                developer testing), the following three attributes are visible
+                instead:
+
+                current_driver: same as described above
+
+                available_governors: (RO) displays a space separated list of
+                available governors
+
+                current_governor: (RW) displays current idle policy. Users can
+                switch the governor at runtime by writing to this file.
 
                 See files in Documentation/cpuidle/ for more information.
 
 
+What:           /sys/devices/system/cpu/cpuX/cpuidle/stateN/name
+                /sys/devices/system/cpu/cpuX/cpuidle/stateN/latency
+                /sys/devices/system/cpu/cpuX/cpuidle/stateN/power
+                /sys/devices/system/cpu/cpuX/cpuidle/stateN/time
+                /sys/devices/system/cpu/cpuX/cpuidle/stateN/usage
+Date:           September 2007
+KernelVersion:  v2.6.24
+Contact:        Linux power management list <linux-pm@vger.kernel.org>
+Description:
+                The directory /sys/devices/system/cpu/cpuX/cpuidle contains per
+                logical CPU specific cpuidle information for each online cpu X.
+                The processor idle states which are available for use have the
+                following attributes:
+
+                name: (RO) Name of the idle state (string).
+
+                latency: (RO) The latency to exit out of this idle state (in
+                microseconds).
+
+                power: (RO) The power consumed while in this idle state (in
+                milliwatts).
+
+                time: (RO) The total time spent in this idle state (in microseconds).
+
+                usage: (RO) Number of times this state was entered (a count).
+
+
+What:           /sys/devices/system/cpu/cpuX/cpuidle/stateN/desc
+Date:           February 2008
+KernelVersion:  v2.6.25
+Contact:        Linux power management list <linux-pm@vger.kernel.org>
+Description:
+                (RO) A small description about the idle state (string).
+
+
+What:           /sys/devices/system/cpu/cpuX/cpuidle/stateN/disable
+Date:           March 2012
+KernelVersion:  v3.10
+Contact:        Linux power management list <linux-pm@vger.kernel.org>
+Description:
+                (RW) Option to disable this idle state (bool). The behavior and
+                the effect of the disable variable depends on the implementation
+                of a particular governor. In the ladder governor, for example,
+                it is not coherent, i.e. if one is disabling a light state, then
+                all deeper states are disabled as well, but the disable variable
+                does not reflect it. Likewise, if one enables a deep state but a
+                lighter state still is disabled, then this has no effect.
+
+
+What:           /sys/devices/system/cpu/cpuX/cpuidle/stateN/residency
+Date:           March 2014
+KernelVersion:  v3.15
+Contact:        Linux power management list <linux-pm@vger.kernel.org>
+Description:
+                (RO) Display the target residency i.e. the minimum amount of
+                time (in microseconds) this cpu should spend in this idle state
+                to make the transition worth the effort.
+
+
 What:           /sys/devices/system/cpu/cpu#/cpufreq/*
 Date:           pre-git history
 Contact:        linux-pm@vger.kernel.org
diff --git a/Documentation/ABI/testing/sysfs-platform-dptf b/Documentation/ABI/testing/sysfs-platform-dptf
new file mode 100644
index 000000000000..325dc0667dbb
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-dptf
@@ -0,0 +1,40 @@
+What:           /sys/bus/platform/devices/INT3407:00/dptf_power/charger_type
+Date:           Jul, 2016
+KernelVersion:  v4.10
+Contact:        linux-acpi@vger.kernel.org
+Description:
+                (RO) The charger type - Traditional, Hybrid or NVDC.
+
+What:           /sys/bus/platform/devices/INT3407:00/dptf_power/adapter_rating_mw
+Date:           Jul, 2016
+KernelVersion:  v4.10
+Contact:        linux-acpi@vger.kernel.org
+Description:
+                (RO) Adapter rating in milliwatts (the maximum Adapter power).
+                Must be 0 if no AC Adaptor is plugged in.
+
+What:           /sys/bus/platform/devices/INT3407:00/dptf_power/max_platform_power_mw
+Date:           Jul, 2016
+KernelVersion:  v4.10
+Contact:        linux-acpi@vger.kernel.org
+Description:
+                (RO) Maximum platform power that can be supported by the battery
+                in milliwatts.
+
+What:           /sys/bus/platform/devices/INT3407:00/dptf_power/platform_power_source
+Date:           Jul, 2016
+KernelVersion:  v4.10
+Contact:        linux-acpi@vger.kernel.org
+Description:
+                (RO) Display the platform power source
+                0x00 = DC
+                0x01 = AC
+                0x02 = USB
+                0x03 = Wireless Charger
+
+What:           /sys/bus/platform/devices/INT3407:00/dptf_power/battery_steady_power
+Date:           Jul, 2016
+KernelVersion:  v4.10
+Contact:        linux-acpi@vger.kernel.org
+Description:
+                (RO) The maximum sustained power for battery in milliwatts.
diff --git a/Documentation/PCI/pci.txt b/Documentation/PCI/pci.txt
index 611a75e4366e..badb26ac33dc 100644
--- a/Documentation/PCI/pci.txt
+++ b/Documentation/PCI/pci.txt
@@ -570,7 +570,9 @@ your driver if they're helpful, or just use plain hex constants.
 The device IDs are arbitrary hex numbers (vendor controlled) and normally used
 only in a single location, the pci_device_id table.
 
-Please DO submit new vendor/device IDs to http://pciids.sourceforge.net/.
+Please DO submit new vendor/device IDs to http://pci-ids.ucw.cz/.
+There are mirrors of the pci.ids file at http://pciids.sourceforge.net/
+and https://github.com/pciutils/pciids.
 
 
 
diff --git a/Documentation/accelerators/ocxl.rst b/Documentation/accelerators/ocxl.rst
index 4f7af841d935..ddcc58d01cfb 100644
--- a/Documentation/accelerators/ocxl.rst
+++ b/Documentation/accelerators/ocxl.rst
@@ -152,6 +152,11 @@ OCXL_IOCTL_IRQ_SET_FD:
   Associate an event fd to an AFU interrupt so that the user process
   can be notified when the AFU sends an interrupt.
 
+OCXL_IOCTL_GET_METADATA:
+
+  Obtains configuration information from the card, such at the size of
+  MMIO areas, the AFU version, and the PASID for the current context.
+
 
 mmap
 ----
diff --git a/Documentation/atomic_bitops.txt b/Documentation/atomic_bitops.txt
index 5550bfdcce5f..be70b32c95d9 100644
--- a/Documentation/atomic_bitops.txt
+++ b/Documentation/atomic_bitops.txt
@@ -58,7 +58,12 @@ Like with atomic_t, the rule of thumb is:
 
  - RMW operations that have a return value are fully ordered.
 
-Except for test_and_set_bit_lock() which has ACQUIRE semantics and
+ - RMW operations that are conditional are unordered on FAILURE,
+   otherwise the above rules apply. In the case of test_and_{}_bit() operations,
+   if the bit in memory is unchanged by the operation then it is deemed to have
+   failed.
+
+Except for a successful test_and_set_bit_lock() which has ACQUIRE semantics and
 clear_bit_unlock() which has RELEASE semantics.
 
 Since a platform only has a single means of achieving atomic operations
diff --git a/Documentation/devicetree/bindings/misc/arm-charlcd.txt b/Documentation/devicetree/bindings/auxdisplay/arm-charlcd.txt
index e28e2aac47f1..e28e2aac47f1 100644
--- a/Documentation/devicetree/bindings/misc/arm-charlcd.txt
+++ b/Documentation/devicetree/bindings/auxdisplay/arm-charlcd.txt
diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
index 6394ea9e3b9e..58b12e25bbb1 100644
--- a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
+++ b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
@@ -16,6 +16,7 @@ Required properties:
 - ddc: phandle to the hdmi ddc node
 - phy: phandle to the hdmi phy node
 - samsung,syscon-phandle: phandle for system controller node for PMU.
+- #sound-dai-cells: should be 0.
 
 Required properties for Exynos 4210, 4212, 5420 and 5433:
 - clocks: list of clock IDs from SoC clock driver.
diff --git a/Documentation/devicetree/bindings/dma/mv-xor-v2.txt b/Documentation/devicetree/bindings/dma/mv-xor-v2.txt
index 217a90eaabe7..9c38bbe7e6d7 100644
--- a/Documentation/devicetree/bindings/dma/mv-xor-v2.txt
+++ b/Documentation/devicetree/bindings/dma/mv-xor-v2.txt
@@ -11,7 +11,11 @@ Required properties:
   interrupts.
 
 Optional properties:
-- clocks: Optional reference to the clock used by the XOR engine.
+- clocks: Optional reference to the clocks used by the XOR engine.
+- clock-names: mandatory if there is a second clock, in this case the
+   name must be "core" for the first clock and "reg" for the second
+   one
+
 
 Example:
 
diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt b/Documentation/devicetree/bindings/eeprom/at24.txt
index 1812c848e369..abfae1beca2b 100644
--- a/Documentation/devicetree/bindings/eeprom/at24.txt
+++ b/Documentation/devicetree/bindings/eeprom/at24.txt
@@ -38,9 +38,9 @@ Required properties:
 
                 "catalyst",
                 "microchip",
+                "nxp",
                 "ramtron",
                 "renesas",
-                "nxp",
                 "st",
 
                 Some vendors use different model names for chips which are just
diff --git a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
index e9ebb8a20e0d..ba24ca7ba95e 100644
--- a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
+++ b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
@@ -3,11 +3,11 @@ Device-Tree bindings for sigma delta modulator
 Required properties:
 - compatible: should be "ads1201", "sd-modulator". "sd-modulator" can be use
         as a generic SD modulator if modulator not specified in compatible list.
-- #io-channel-cells = <1>: See the IIO bindings section "IIO consumers".
+- #io-channel-cells = <0>: See the IIO bindings section "IIO consumers".
 
 Example node:
 
         ads1202: adc@0 {
                 compatible = "sd-modulator";
-                #io-channel-cells = <1>;
+                #io-channel-cells = <0>;
         };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
index 33c9a10fdc91..20f121daa910 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
@@ -14,6 +14,7 @@ Required properties:
     - "renesas,irqc-r8a7794" (R-Car E2)
     - "renesas,intc-ex-r8a7795" (R-Car H3)
     - "renesas,intc-ex-r8a7796" (R-Car M3-W)
+    - "renesas,intc-ex-r8a77965" (R-Car M3-N)
     - "renesas,intc-ex-r8a77970" (R-Car V3M)
     - "renesas,intc-ex-r8a77995" (R-Car D3)
 - #interrupt-cells: has to be <2>: an interrupt index and flags, as defined in
diff --git a/Documentation/devicetree/bindings/net/dsa/marvell.txt b/Documentation/devicetree/bindings/net/dsa/marvell.txt
index 1d4d0f49c9d0..8c033d48e2ba 100644
--- a/Documentation/devicetree/bindings/net/dsa/marvell.txt
+++ b/Documentation/devicetree/bindings/net/dsa/marvell.txt
@@ -50,14 +50,15 @@ Example:
                         compatible = "marvell,mv88e6085";
                         reg = <0>;
                         reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
-                };
-                mdio {
-                        #address-cells = <1>;
-                        #size-cells = <0>;
-                        switch1phy0: switch1phy0@0 {
-                                reg = <0>;
-                                interrupt-parent = <&switch0>;
-                                interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+
+                        mdio {
+                                #address-cells = <1>;
+                                #size-cells = <0>;
+                                switch1phy0: switch1phy0@0 {
+                                        reg = <0>;
+                                        interrupt-parent = <&switch0>;
+                                        interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+                                };
                         };
                 };
         };
@@ -74,23 +75,24 @@ Example:
                         compatible = "marvell,mv88e6390";
                         reg = <0>;
                         reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
-                };
-                mdio {
-                        #address-cells = <1>;
-                        #size-cells = <0>;
-                        switch1phy0: switch1phy0@0 {
-                                reg = <0>;
-                                interrupt-parent = <&switch0>;
-                                interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+
+                        mdio {
+                                #address-cells = <1>;
+                                #size-cells = <0>;
+                                switch1phy0: switch1phy0@0 {
+                                        reg = <0>;
+                                        interrupt-parent = <&switch0>;
+                                        interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+                                };
                         };
-                };
 
-                mdio1 {
-                        compatible = "marvell,mv88e6xxx-mdio-external";
-                        #address-cells = <1>;
-                        #size-cells = <0>;
-                        switch1phy9: switch1phy0@9 {
-                                reg = <9>;
+                        mdio1 {
+                                compatible = "marvell,mv88e6xxx-mdio-external";
+                                #address-cells = <1>;
+                                #size-cells = <0>;
+                                switch1phy9: switch1phy0@9 {
+                                        reg = <9>;
+                                };
                         };
                 };
         };
diff --git a/Documentation/devicetree/bindings/net/renesas,ravb.txt b/Documentation/devicetree/bindings/net/renesas,ravb.txt
index c902261893b9..b4dc455eb155 100644
--- a/Documentation/devicetree/bindings/net/renesas,ravb.txt
+++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt
@@ -18,6 +18,7 @@ Required properties:
       - "renesas,etheravb-r8a7795" for the R8A7795 SoC.
       - "renesas,etheravb-r8a7796" for the R8A7796 SoC.
       - "renesas,etheravb-r8a77970" for the R8A77970 SoC.
+      - "renesas,etheravb-r8a77980" for the R8A77980 SoC.
       - "renesas,etheravb-r8a77995" for the R8A77995 SoC.
       - "renesas,etheravb-rcar-gen3" as a fallback for the above
                 R-Car Gen3 devices.
@@ -26,7 +27,11 @@ Required properties:
         SoC-specific version corresponding to the platform first followed by
         the generic version.
 
-- reg: offset and length of (1) the register block and (2) the stream buffer.
+- reg: Offset and length of (1) the register block and (2) the stream buffer.
+       The region for the register block is mandatory.
+       The region for the stream buffer is optional, as it is only present on
+       R-Car Gen2 and RZ/G1 SoCs, and on R-Car H3 (R8A7795), M3-W (R8A7796),
+       and M3-N (R8A77965).
 - interrupts: A list of interrupt-specifiers, one for each entry in
               interrupt-names.
               If interrupt-names is not present, an interrupt specifier
diff --git a/Documentation/devicetree/bindings/power/mti,mips-cpc.txt b/Documentation/devicetree/bindings/power/mti,mips-cpc.txt
new file mode 100644
index 000000000000..c6b82511ae8a
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/mti,mips-cpc.txt
@@ -0,0 +1,8 @@
+Binding for MIPS Cluster Power Controller (CPC).
+
+This binding allows a system to specify where the CPC registers are
+located.
+
+Required properties:
+compatible : Should be "mti,mips-cpc".
+regs: Should describe the address & size of the CPC register region.
diff --git a/Documentation/devicetree/bindings/power/wakeup-source.txt b/Documentation/devicetree/bindings/power/wakeup-source.txt
index 3c81f78b5c27..5d254ab13ebf 100644
--- a/Documentation/devicetree/bindings/power/wakeup-source.txt
+++ b/Documentation/devicetree/bindings/power/wakeup-source.txt
@@ -60,7 +60,7 @@ Examples
                 #size-cells = <0>;
 
                 button@1 {
-                        debounce_interval = <50>;
+                        debounce-interval = <50>;
                         wakeup-source;
                         linux,code = <116>;
                         label = "POWER";
diff --git a/Documentation/devicetree/bindings/thermal/imx-thermal.txt b/Documentation/devicetree/bindings/thermal/imx-thermal.txt
index 28be51afdb6a..379eb763073e 100644
--- a/Documentation/devicetree/bindings/thermal/imx-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/imx-thermal.txt
@@ -22,7 +22,32 @@ Optional properties:
 - clocks : thermal sensor's clock source.
 
 Example:
+ocotp: ocotp@21bc000 {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        compatible = "fsl,imx6sx-ocotp", "syscon";
+        reg = <0x021bc000 0x4000>;
+        clocks = <&clks IMX6SX_CLK_OCOTP>;
 
+        tempmon_calib: calib@38 {
+                reg = <0x38 4>;
+        };
+
+        tempmon_temp_grade: temp-grade@20 {
+                reg = <0x20 4>;
+        };
+};
+
+tempmon: tempmon {
+        compatible = "fsl,imx6sx-tempmon", "fsl,imx6q-tempmon";
+        interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+        fsl,tempmon = <&anatop>;
+        nvmem-cells = <&tempmon_calib>, <&tempmon_temp_grade>;
+        nvmem-cell-names = "calib", "temp_grade";
+        clocks = <&clks IMX6SX_CLK_PLL3_USB_OTG>;
+};
+
+Legacy method (Deprecated):
 tempmon {
         compatible = "fsl,imx6q-tempmon";
         fsl,tempmon = <&anatop>;
diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index e64d903bcbe8..46da5f184460 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.txt
+++ b/Documentation/devicetree/bindings/usb/dwc2.txt
@@ -19,7 +19,7 @@ Required properties:
   configured in FS mode;
   - "st,stm32f4x9-hsotg": The DWC2 USB HS controller instance in STM32F4x9 SoCs
   configured in HS mode;
-  - "st,stm32f7xx-hsotg": The DWC2 USB HS controller instance in STM32F7xx SoCs
+  - "st,stm32f7-hsotg": The DWC2 USB HS controller instance in STM32F7 SoCs
     configured in HS mode;
 - reg : Should contain 1 register range (address and length)
 - interrupts : Should contain 1 interrupt
diff --git a/Documentation/devicetree/bindings/usb/renesas_usb3.txt b/Documentation/devicetree/bindings/usb/renesas_usb3.txt
index 87a45e2f9b7f..2c071bb5801e 100644
--- a/Documentation/devicetree/bindings/usb/renesas_usb3.txt
+++ b/Documentation/devicetree/bindings/usb/renesas_usb3.txt
@@ -4,6 +4,7 @@ Required properties:
   - compatible: Must contain one of the following:
         - "renesas,r8a7795-usb3-peri"
         - "renesas,r8a7796-usb3-peri"
+        - "renesas,r8a77965-usb3-peri"
         - "renesas,rcar-gen3-usb3-peri" for a generic R-Car Gen3 compatible
           device
 
diff --git a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
index d060172f1529..43960faf5a88 100644
--- a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
+++ b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
@@ -12,6 +12,7 @@ Required properties:
         - "renesas,usbhs-r8a7794" for r8a7794 (R-Car E2) compatible device
         - "renesas,usbhs-r8a7795" for r8a7795 (R-Car H3) compatible device
         - "renesas,usbhs-r8a7796" for r8a7796 (R-Car M3-W) compatible device
+        - "renesas,usbhs-r8a77965" for r8a77965 (R-Car M3-N) compatible device
         - "renesas,usbhs-r8a77995" for r8a77995 (R-Car D3) compatible device
         - "renesas,usbhs-r7s72100" for r7s72100 (RZ/A1) compatible device
         - "renesas,rcar-gen2-usbhs" for R-Car Gen2 or RZ/G1 compatible devices
diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
index e2ea59bbca93..1651483a7048 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -13,6 +13,7 @@ Required properties:
     - "renesas,xhci-r8a7793" for r8a7793 SoC
     - "renesas,xhci-r8a7795" for r8a7795 SoC
     - "renesas,xhci-r8a7796" for r8a7796 SoC
+    - "renesas,xhci-r8a77965" for r8a77965 SoC
     - "renesas,rcar-gen2-xhci" for a generic R-Car Gen2 or RZ/G1 compatible
       device
     - "renesas,rcar-gen3-xhci" for a generic R-Car Gen3 compatible device
diff --git a/Documentation/features/sched/membarrier-sync-core/arch-support.txt b/Documentation/features/sched/membarrier-sync-core/arch-support.txt
new file mode 100644
index 000000000000..2c815a7f1ba7
--- /dev/null
+++ b/Documentation/features/sched/membarrier-sync-core/arch-support.txt
@@ -0,0 +1,62 @@
+#
+# Feature name:          membarrier-sync-core
+#         Kconfig:       ARCH_HAS_MEMBARRIER_SYNC_CORE
+#         description:   arch supports core serializing membarrier
+#
+# Architecture requirements
+#
+# * arm64
+#
+# Rely on eret context synchronization when returning from IPI handler, and
+# when returning to user-space.
+#
+# * x86
+#
+# x86-32 uses IRET as return from interrupt, which takes care of the IPI.
+# However, it uses both IRET and SYSEXIT to go back to user-space. The IRET
+# instruction is core serializing, but not SYSEXIT.
+#
+# x86-64 uses IRET as return from interrupt, which takes care of the IPI.
+# However, it can return to user-space through either SYSRETL (compat code),
+# SYSRETQ, or IRET.
+#
+# Given that neither SYSRET{L,Q}, nor SYSEXIT, are core serializing, we rely
+# instead on write_cr3() performed by switch_mm() to provide core serialization
+# after changing the current mm, and deal with the special case of kthread ->
+# uthread (temporarily keeping current mm into active_mm) by issuing a
+# sync_core_before_usermode() in that specific case.
+#
+    -----------------------
+    |         arch |status|
+    -----------------------
+    |       alpha: | TODO |
+    |         arc: | TODO |
+    |         arm: | TODO |
+    |       arm64: |  ok  |
+    |    blackfin: | TODO |
+    |         c6x: | TODO |
+    |        cris: | TODO |
+    |         frv: | TODO |
+    |       h8300: | TODO |
+    |     hexagon: | TODO |
+    |        ia64: | TODO |
+    |        m32r: | TODO |
+    |        m68k: | TODO |
+    |       metag: | TODO |
+    |  microblaze: | TODO |
+    |        mips: | TODO |
+    |     mn10300: | TODO |
+    |       nios2: | TODO |
+    |    openrisc: | TODO |
+    |      parisc: | TODO |
+    |     powerpc: | TODO |
+    |        s390: | TODO |
+    |       score: | TODO |
+    |          sh: | TODO |
+    |       sparc: | TODO |
+    |        tile: | TODO |
+    |          um: | TODO |
+    |   unicore32: | TODO |
+    |         x86: |  ok  |
+    |      xtensa: | TODO |
+    -----------------------
diff --git a/Documentation/gpu/tve200.rst b/Documentation/gpu/tve200.rst
index 69b17b324e12..152ea9398f7e 100644
--- a/Documentation/gpu/tve200.rst
+++ b/Documentation/gpu/tve200.rst
@@ -3,4 +3,4 @@
 ==================================
 
 .. kernel-doc:: drivers/gpu/drm/tve200/tve200_drv.c
-   :doc: Faraday TV Encoder 200
+   :doc: Faraday TV Encoder TVE200 DRM Driver
diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801
index d47702456926..65514c251318 100644
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -28,8 +28,10 @@ Supported adapters:
   * Intel Wildcat Point (PCH)
   * Intel Wildcat Point-LP (PCH)
   * Intel BayTrail (SOC)
+  * Intel Braswell (SOC)
   * Intel Sunrise Point-H (PCH)
   * Intel Sunrise Point-LP (PCH)
+  * Intel Kaby Lake-H (PCH)
   * Intel DNV (SOC)
   * Intel Broxton (SOC)
   * Intel Lewisburg (PCH)
diff --git a/Documentation/ia64/serial.txt b/Documentation/ia64/serial.txt
index 6869c73de4e2..a63d2c54329b 100644
--- a/Documentation/ia64/serial.txt
+++ b/Documentation/ia64/serial.txt
@@ -111,7 +111,7 @@ TROUBLESHOOTING SERIAL CONSOLE PROBLEMS
 
         - If you don't have an HCDP, the kernel doesn't know where
           your console lives until the driver discovers serial
-          devices.  Use "console=uart, io,0x3f8" (or appropriate
+          devices.  Use "console=uart,io,0x3f8" (or appropriate
           address for your machine).
 
     Kernel and init script output works fine, but no "login:" prompt:
diff --git a/Documentation/locking/mutex-design.txt b/Documentation/locking/mutex-design.txt
index 60c482df1a38..818aca19612f 100644
--- a/Documentation/locking/mutex-design.txt
+++ b/Documentation/locking/mutex-design.txt
@@ -21,37 +21,23 @@ Implementation
 --------------
 
 Mutexes are represented by 'struct mutex', defined in include/linux/mutex.h
-and implemented in kernel/locking/mutex.c. These locks use a three
-state atomic counter (->count) to represent the different possible
-transitions that can occur during the lifetime of a lock:
-
-          1: unlocked
-          0: locked, no waiters
-   negative: locked, with potential waiters
-
-In its most basic form it also includes a wait-queue and a spinlock
-that serializes access to it. CONFIG_SMP systems can also include
-a pointer to the lock task owner (->owner) as well as a spinner MCS
-lock (->osq), both described below in (ii).
+and implemented in kernel/locking/mutex.c. These locks use an atomic variable
+(->owner) to keep track of the lock state during its lifetime.  Field owner
+actually contains 'struct task_struct *' to the current lock owner and it is
+therefore NULL if not currently owned. Since task_struct pointers are aligned
+at at least L1_CACHE_BYTES, low bits (3) are used to store extra state (e.g.,
+if waiter list is non-empty).  In its most basic form it also includes a
+wait-queue and a spinlock that serializes access to it. Furthermore,
+CONFIG_MUTEX_SPIN_ON_OWNER=y systems use a spinner MCS lock (->osq), described
+below in (ii).
 
 When acquiring a mutex, there are three possible paths that can be
 taken, depending on the state of the lock:
 
-(i) fastpath: tries to atomically acquire the lock by decrementing the
-    counter. If it was already taken by another task it goes to the next
-    possible path. This logic is architecture specific. On x86-64, the
-    locking fastpath is 2 instructions:
-
-    0000000000000e10 <mutex_lock>:
-    e21:   f0 ff 0b                lock decl (%rbx)
-    e24:   79 08                   jns    e2e <mutex_lock+0x1e>
-
-   the unlocking fastpath is equally tight:
-
-    0000000000000bc0 <mutex_unlock>:
-    bc8:   f0 ff 07                lock incl (%rdi)
-    bcb:   7f 0a                   jg     bd7 <mutex_unlock+0x17>
-
+(i) fastpath: tries to atomically acquire the lock by cmpxchg()ing the owner with
+    the current task. This only works in the uncontended case (cmpxchg() checks
+    against 0UL, so all 3 state bits above have to be 0). If the lock is
+    contended it goes to the next possible path.
 
 (ii) midpath: aka optimistic spinning, tries to spin for acquisition
      while the lock owner is running and there are no other tasks ready
@@ -143,11 +129,10 @@ Test if the mutex is taken:
 Disadvantages
 -------------
 
-Unlike its original design and purpose, 'struct mutex' is larger than
-most locks in the kernel. E.g: on x86-64 it is 40 bytes, almost twice
-as large as 'struct semaphore' (24 bytes) and tied, along with rwsems,
-for the largest lock in the kernel. Larger structure sizes mean more
-CPU cache and memory footprint.
+Unlike its original design and purpose, 'struct mutex' is among the largest
+locks in the kernel. E.g: on x86-64 it is 32 bytes, where 'struct semaphore'
+is 24 bytes and rw_semaphore is 40 bytes. Larger structure sizes mean more CPU
+cache and memory footprint.
 
 When to use mutexes
 -------------------
diff --git a/Documentation/media/dmx.h.rst.exceptions b/Documentation/media/dmx.h.rst.exceptions
index 63f55a9ae2b1..a8c4239ed95b 100644
--- a/Documentation/media/dmx.h.rst.exceptions
+++ b/Documentation/media/dmx.h.rst.exceptions
@@ -50,9 +50,15 @@ replace typedef dmx_filter_t :c:type:`dmx_filter`
 replace typedef dmx_pes_type_t :c:type:`dmx_pes_type`
 replace typedef dmx_input_t :c:type:`dmx_input`
 
-ignore symbol DMX_OUT_DECODER
-ignore symbol DMX_OUT_TAP
-ignore symbol DMX_OUT_TS_TAP
-ignore symbol DMX_OUT_TSDEMUX_TAP
+replace symbol DMX_BUFFER_FLAG_HAD_CRC32_DISCARD :c:type:`dmx_buffer_flags`
+replace symbol DMX_BUFFER_FLAG_TEI :c:type:`dmx_buffer_flags`
+replace symbol DMX_BUFFER_PKT_COUNTER_MISMATCH :c:type:`dmx_buffer_flags`
+replace symbol DMX_BUFFER_FLAG_DISCONTINUITY_DETECTED :c:type:`dmx_buffer_flags`
+replace symbol DMX_BUFFER_FLAG_DISCONTINUITY_INDICATOR :c:type:`dmx_buffer_flags`
+
+replace symbol DMX_OUT_DECODER :c:type:`dmx_output`
+replace symbol DMX_OUT_TAP :c:type:`dmx_output`
+replace symbol DMX_OUT_TS_TAP :c:type:`dmx_output`
+replace symbol DMX_OUT_TSDEMUX_TAP :c:type:`dmx_output`
 
 replace ioctl DMX_DQBUF dmx_qbuf
diff --git a/Documentation/media/uapi/dvb/dmx-qbuf.rst b/Documentation/media/uapi/dvb/dmx-qbuf.rst
index b48c4931658e..be5a4c6f1904 100644
--- a/Documentation/media/uapi/dvb/dmx-qbuf.rst
+++ b/Documentation/media/uapi/dvb/dmx-qbuf.rst
@@ -51,9 +51,10 @@ out to disk. Buffers remain locked until dequeued, until the
 the device is closed.
 
 Applications call the ``DMX_DQBUF`` ioctl to dequeue a filled
-(capturing) buffer from the driver's outgoing queue. They just set the ``reserved`` field array to zero. When ``DMX_DQBUF`` is called with a
-pointer to this structure, the driver fills the remaining fields or
-returns an error code.
+(capturing) buffer from the driver's outgoing queue.
+They just set the ``index`` field withe the buffer ID to be queued.
+When ``DMX_DQBUF`` is called with a pointer to struct :c:type:`dmx_buffer`,
+the driver fills the remaining fields or returns an error code.
 
 By default ``DMX_DQBUF`` blocks when no buffer is in the outgoing
 queue. When the ``O_NONBLOCK`` flag was given to the
diff --git a/Documentation/networking/segmentation-offloads.txt b/Documentation/networking/segmentation-offloads.txt
index 2f09455a993a..aca542ec125c 100644
--- a/Documentation/networking/segmentation-offloads.txt
+++ b/Documentation/networking/segmentation-offloads.txt
@@ -13,14 +13,15 @@ The following technologies are described:
  * Generic Segmentation Offload - GSO
  * Generic Receive Offload - GRO
  * Partial Generic Segmentation Offload - GSO_PARTIAL
+ * SCTP accelleration with GSO - GSO_BY_FRAGS
 
 TCP Segmentation Offload
 ========================
 
 TCP segmentation allows a device to segment a single frame into multiple
 frames with a data payload size specified in skb_shinfo()->gso_size.
-When TCP segmentation requested the bit for either SKB_GSO_TCP or
-SKB_GSO_TCP6 should be set in skb_shinfo()->gso_type and
+When TCP segmentation requested the bit for either SKB_GSO_TCPV4 or
+SKB_GSO_TCPV6 should be set in skb_shinfo()->gso_type and
 skb_shinfo()->gso_size should be set to a non-zero value.
 
 TCP segmentation is dependent on support for the use of partial checksum
@@ -49,6 +50,10 @@ datagram into multiple IPv4 fragments.  Many of the requirements for UDP
 fragmentation offload are the same as TSO.  However the IPv4 ID for
 fragments should not increment as a single IPv4 datagram is fragmented.
 
+UFO is deprecated: modern kernels will no longer generate UFO skbs, but can
+still receive them from tuntap and similar devices. Offload of UDP-based
+tunnel protocols is still supported.
+
 IPIP, SIT, GRE, UDP Tunnel, and Remote Checksum Offloads
 ========================================================
 
@@ -83,10 +88,10 @@ SKB_GSO_UDP_TUNNEL_CSUM.  These two additional tunnel types reflect the
 fact that the outer header also requests to have a non-zero checksum
 included in the outer header.
 
-Finally there is SKB_GSO_REMCSUM which indicates that a given tunnel header
-has requested a remote checksum offload.  In this case the inner headers
-will be left with a partial checksum and only the outer header checksum
-will be computed.
+Finally there is SKB_GSO_TUNNEL_REMCSUM which indicates that a given tunnel
+header has requested a remote checksum offload.  In this case the inner
+headers will be left with a partial checksum and only the outer header
+checksum will be computed.
 
 Generic Segmentation Offload
 ============================
@@ -128,3 +133,38 @@ values for if the header was simply duplicated.  The one exception to this
 is the outer IPv4 ID field.  It is up to the device drivers to guarantee
 that the IPv4 ID field is incremented in the case that a given header does
 not have the DF bit set.
+
+SCTP accelleration with GSO
+===========================
+
+SCTP - despite the lack of hardware support - can still take advantage of
+GSO to pass one large packet through the network stack, rather than
+multiple small packets.
+
+This requires a different approach to other offloads, as SCTP packets
+cannot be just segmented to (P)MTU. Rather, the chunks must be contained in
+IP segments, padding respected. So unlike regular GSO, SCTP can't just
+generate a big skb, set gso_size to the fragmentation point and deliver it
+to IP layer.
+
+Instead, the SCTP protocol layer builds an skb with the segments correctly
+padded and stored as chained skbs, and skb_segment() splits based on those.
+To signal this, gso_size is set to the special value GSO_BY_FRAGS.
+
+Therefore, any code in the core networking stack must be aware of the
+possibility that gso_size will be GSO_BY_FRAGS and handle that case
+appropriately.
+
+There are some helpers to make this easier:
+
+ - skb_is_gso(skb) && skb_is_gso_sctp(skb) is the best way to see if
+   an skb is an SCTP GSO skb.
+
+ - For size checks, the skb_gso_validate_*_len family of helpers correctly
+   considers GSO_BY_FRAGS.
+
+ - For manipulating packets, skb_increase_gso_size and skb_decrease_gso_size
+   will check for GSO_BY_FRAGS and WARN if asked to manipulate these skbs.
+
+This also affects drivers with the NETIF_F_FRAGLIST & NETIF_F_GSO_SCTP bits
+set. Note also that NETIF_F_GSO_SCTP is included in NETIF_F_GSO_SOFTWARE.
diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index 39aa9e8697cc..fbedcc39460b 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -36,8 +36,7 @@ import glob
 
 from docutils import nodes, statemachine
 from docutils.statemachine import ViewList
-from docutils.parsers.rst import directives
-from sphinx.util.compat import Directive
+from docutils.parsers.rst import directives, Directive
 from sphinx.ext.autodoc import AutodocReporter
 
 __version__  = '1.0'
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 792fa8717d13..d6b3ff51a14f 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -123,14 +123,15 @@ memory layout to fit in user mode), check KVM_CAP_MIPS_VZ and use the
 flag KVM_VM_MIPS_VZ.
 
 
-4.3 KVM_GET_MSR_INDEX_LIST
+4.3 KVM_GET_MSR_INDEX_LIST, KVM_GET_MSR_FEATURE_INDEX_LIST
 
-Capability: basic
+Capability: basic, KVM_CAP_GET_MSR_FEATURES for KVM_GET_MSR_FEATURE_INDEX_LIST
 Architectures: x86
-Type: system
+Type: system ioctl
 Parameters: struct kvm_msr_list (in/out)
 Returns: 0 on success; -1 on error
 Errors:
+  EFAULT:    the msr index list cannot be read from or written to
   E2BIG:     the msr index list is to be to fit in the array specified by
              the user.
 
@@ -139,16 +140,23 @@ struct kvm_msr_list {
         __u32 indices[0];
 };
 
-This ioctl returns the guest msrs that are supported.  The list varies
-by kvm version and host processor, but does not change otherwise.  The
-user fills in the size of the indices array in nmsrs, and in return
-kvm adjusts nmsrs to reflect the actual number of msrs and fills in
-the indices array with their numbers.
+The user fills in the size of the indices array in nmsrs, and in return
+kvm adjusts nmsrs to reflect the actual number of msrs and fills in the
+indices array with their numbers.
+
+KVM_GET_MSR_INDEX_LIST returns the guest msrs that are supported.  The list
+varies by kvm version and host processor, but does not change otherwise.
 
 Note: if kvm indicates supports MCE (KVM_CAP_MCE), then the MCE bank MSRs are
 not returned in the MSR list, as different vcpus can have a different number
 of banks, as set via the KVM_X86_SETUP_MCE ioctl.
 
+KVM_GET_MSR_FEATURE_INDEX_LIST returns the list of MSRs that can be passed
+to the KVM_GET_MSRS system ioctl.  This lets userspace probe host capabilities
+and processor features that are exposed via MSRs (e.g., VMX capabilities).
+This list also varies by kvm version and host processor, but does not change
+otherwise.
+
 
 4.4 KVM_CHECK_EXTENSION
 
@@ -475,14 +483,22 @@ Support for this has been removed.  Use KVM_SET_GUEST_DEBUG instead.
 
 4.18 KVM_GET_MSRS
 
-Capability: basic
+Capability: basic (vcpu), KVM_CAP_GET_MSR_FEATURES (system)
 Architectures: x86
-Type: vcpu ioctl
+Type: system ioctl, vcpu ioctl
 Parameters: struct kvm_msrs (in/out)
-Returns: 0 on success, -1 on error
+Returns: number of msrs successfully returned;
+        -1 on error
+
+When used as a system ioctl:
+Reads the values of MSR-based features that are available for the VM.  This
+is similar to KVM_GET_SUPPORTED_CPUID, but it returns MSR indices and values.
+The list of msr-based features can be obtained using KVM_GET_MSR_FEATURE_INDEX_LIST
+in a system ioctl.
 
+When used as a vcpu ioctl:
 Reads model-specific registers from the vcpu.  Supported msr indices can
-be obtained using KVM_GET_MSR_INDEX_LIST.
+be obtained using KVM_GET_MSR_INDEX_LIST in a system ioctl.
 
 struct kvm_msrs {
         __u32 nmsrs; /* number of msrs in entries */
diff --git a/Documentation/virtual/kvm/cpuid.txt b/Documentation/virtual/kvm/cpuid.txt
index dcab6dc11e3b..87a7506f31c2 100644
--- a/Documentation/virtual/kvm/cpuid.txt
+++ b/Documentation/virtual/kvm/cpuid.txt
@@ -58,6 +58,10 @@ KVM_FEATURE_PV_TLB_FLUSH           ||     9 || guest checks this feature bit
                                    ||       || before enabling paravirtualized
                                    ||       || tlb flush.
 ------------------------------------------------------------------------------
+KVM_FEATURE_ASYNC_PF_VMEXIT        ||    10 || paravirtualized async PF VM exit
+                                   ||       || can be enabled by setting bit 2
+                                   ||       || when writing to msr 0x4b564d02
+------------------------------------------------------------------------------
 KVM_FEATURE_CLOCKSOURCE_STABLE_BIT ||    24 || host will warn if no guest-side
                                    ||       || per-cpu warps are expected in
                                    ||       || kvmclock.
diff --git a/Documentation/virtual/kvm/msr.txt b/Documentation/virtual/kvm/msr.txt
index 1ebecc115dc6..f3f0d57ced8e 100644
--- a/Documentation/virtual/kvm/msr.txt
+++ b/Documentation/virtual/kvm/msr.txt
@@ -170,7 +170,8 @@ MSR_KVM_ASYNC_PF_EN: 0x4b564d02
         when asynchronous page faults are enabled on the vcpu 0 when
         disabled. Bit 1 is 1 if asynchronous page faults can be injected
         when vcpu is in cpl == 0. Bit 2 is 1 if asynchronous page faults
-        are delivered to L1 as #PF vmexits.
+        are delivered to L1 as #PF vmexits.  Bit 2 can be set only if
+        KVM_FEATURE_ASYNC_PF_VMEXIT is present in CPUID.
 
         First 4 byte of 64 byte memory location will be written to by
         the hypervisor at the time of asynchronous page fault (APF)
diff --git a/Documentation/x86/intel_rdt_ui.txt b/Documentation/x86/intel_rdt_ui.txt
index 756fd76b78a6..71c30984e94d 100644
--- a/Documentation/x86/intel_rdt_ui.txt
+++ b/Documentation/x86/intel_rdt_ui.txt
@@ -671,7 +671,7 @@ occupancy of the real time threads on these cores.
 # mkdir p1
 
 Move the cpus 4-7 over to p1
-# echo f0 > p0/cpus
+# echo f0 > p1/cpus
 
 View the llc occupancy snapshot
 
diff --git a/Documentation/x86/topology.txt b/Documentation/x86/topology.txt
index f3e9d7e9ed6c..2953e3ec9a02 100644
--- a/Documentation/x86/topology.txt
+++ b/Documentation/x86/topology.txt
@@ -108,7 +108,7 @@ The topology of a system is described in the units of:
 
     The number of online threads is also printed in /proc/cpuinfo "siblings."
 
-  - topology_sibling_mask():
+  - topology_sibling_cpumask():
 
     The cpumask contains all online threads in the core to which a thread
     belongs.
diff --git a/MAINTAINERS b/MAINTAINERS
index dccae57985fe..004d2c14ee4b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1240,7 +1240,7 @@ F:	drivers/clk/at91
 
 ARM/ATMEL AT91RM9200, AT91SAM9 AND SAMA5 SOC SUPPORT
 M:      Nicolas Ferre <nicolas.ferre@microchip.com>
-M:      Alexandre Belloni <alexandre.belloni@free-electrons.com>
+M:      Alexandre Belloni <alexandre.belloni@bootlin.com>
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 W:      http://www.linux4sam.org
 T:      git git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91.git
@@ -1592,7 +1592,7 @@ ARM/Marvell Dove/MV78xx0/Orion SOC support
 M:      Jason Cooper <jason@lakedaemon.net>
 M:      Andrew Lunn <andrew@lunn.ch>
 M:      Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
-M:      Gregory Clement <gregory.clement@free-electrons.com>
+M:      Gregory Clement <gregory.clement@bootlin.com>
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:      Maintained
 F:      Documentation/devicetree/bindings/soc/dove/
@@ -1606,7 +1606,7 @@ F:	arch/arm/boot/dts/orion5x*
 ARM/Marvell Kirkwood and Armada 370, 375, 38x, 39x, XP, 3700, 7K/8K SOC support
 M:      Jason Cooper <jason@lakedaemon.net>
 M:      Andrew Lunn <andrew@lunn.ch>
-M:      Gregory Clement <gregory.clement@free-electrons.com>
+M:      Gregory Clement <gregory.clement@bootlin.com>
 M:      Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:      Maintained
@@ -2001,8 +2001,10 @@ M:	Maxime Coquelin <mcoquelin.stm32@gmail.com>
 M:      Alexandre Torgue <alexandre.torgue@st.com>
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:      Maintained
-T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32.git stm32-next
 N:      stm32
+F:      arch/arm/boot/dts/stm32*
+F:      arch/arm/mach-stm32/
 F:      drivers/clocksource/armv7m_systick.c
 
 ARM/TANGO ARCHITECTURE
@@ -7610,8 +7612,10 @@ F:	mm/kasan/
 F:      scripts/Makefile.kasan
 
 KCONFIG
+M:      Masahiro Yamada <yamada.masahiro@socionext.com>
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git kconfig
 L:      linux-kbuild@vger.kernel.org
-S:      Orphan
+S:      Maintained
 F:      Documentation/kbuild/kconfig-language.txt
 F:      scripts/kconfig/
 
@@ -7919,7 +7923,6 @@ S:	Maintained
 F:      scripts/leaking_addresses.pl
 
 LED SUBSYSTEM
-M:      Richard Purdie <rpurdie@rpsys.net>
 M:      Jacek Anaszewski <jacek.anaszewski@gmail.com>
 M:      Pavel Machek <pavel@ucw.cz>
 L:      linux-leds@vger.kernel.org
@@ -9216,6 +9219,7 @@ MIPS GENERIC PLATFORM
 M:      Paul Burton <paul.burton@mips.com>
 L:      linux-mips@linux-mips.org
 S:      Supported
+F:      Documentation/devicetree/bindings/power/mti,mips-cpc.txt
 F:      arch/mips/generic/
 F:      arch/mips/tools/generic-board-config.sh
 
@@ -9931,6 +9935,13 @@ F:	Documentation/ABI/stable/sysfs-bus-nvmem
 F:      include/linux/nvmem-consumer.h
 F:      include/linux/nvmem-provider.h
 
+NXP SGTL5000 DRIVER
+M:      Fabio Estevam <fabio.estevam@nxp.com>
+L:      alsa-devel@alsa-project.org (moderated for non-subscribers)
+S:      Maintained
+F:      Documentation/devicetree/bindings/sound/sgtl5000.txt
+F:      sound/soc/codecs/sgtl5000*
+
 NXP TDA998X DRM DRIVER
 M:      Russell King <linux@armlinux.org.uk>
 S:      Supported
@@ -9955,6 +9966,7 @@ F:	drivers/nfc/nxp-nci
 
 OBJTOOL
 M:      Josh Poimboeuf <jpoimboe@redhat.com>
+M:      Peter Zijlstra <peterz@infradead.org>
 S:      Supported
 F:      tools/objtool/
 
@@ -10332,7 +10344,7 @@ F:	drivers/oprofile/
 F:      include/linux/oprofile.h
 
 ORACLE CLUSTER FILESYSTEM 2 (OCFS2)
-M:      Mark Fasheh <mfasheh@versity.com>
+M:      Mark Fasheh <mark@fasheh.com>
 M:      Joel Becker <jlbec@evilplan.org>
 L:      ocfs2-devel@oss.oracle.com (moderated for non-subscribers)
 W:      http://ocfs2.wiki.kernel.org
@@ -10842,6 +10854,7 @@ F:	drivers/platform/x86/peaq-wmi.c
 PER-CPU MEMORY ALLOCATOR
 M:      Tejun Heo <tj@kernel.org>
 M:      Christoph Lameter <cl@linux.com>
+M:      Dennis Zhou <dennisszhou@gmail.com>
 T:      git git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git
 S:      Maintained
 F:      include/linux/percpu*.h
@@ -10935,6 +10948,17 @@ L:	linux-gpio@vger.kernel.org
 S:      Supported
 F:      drivers/pinctrl/pinctrl-at91-pio4.*
 
+PIN CONTROLLER - FREESCALE
+M:      Dong Aisheng <aisheng.dong@nxp.com>
+M:      Fabio Estevam <festevam@gmail.com>
+M:      Shawn Guo <shawnguo@kernel.org>
+M:      Stefan Agner <stefan@agner.ch>
+R:      Pengutronix Kernel Team <kernel@pengutronix.de>
+L:      linux-gpio@vger.kernel.org
+S:      Maintained
+F:      drivers/pinctrl/freescale/
+F:      Documentation/devicetree/bindings/pinctrl/fsl,*
+
 PIN CONTROLLER - INTEL
 M:      Mika Westerberg <mika.westerberg@linux.intel.com>
 M:      Heikki Krogerus <heikki.krogerus@linux.intel.com>
@@ -12101,6 +12125,7 @@ M:	Sylwester Nawrocki <s.nawrocki@samsung.com>
 L:      alsa-devel@alsa-project.org (moderated for non-subscribers)
 S:      Supported
 F:      sound/soc/samsung/
+F:      Documentation/devicetree/bindings/sound/samsung*
 
 SAMSUNG EXYNOS PSEUDO RANDOM NUMBER GENERATOR (RNG) DRIVER
 M:      Krzysztof Kozlowski <krzk@kernel.org>
diff --git a/Makefile b/Makefile
index 79ad2bfa24b6..7ba478ab8c82 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 VERSION = 4
 PATCHLEVEL = 16
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc7
 NAME = Fearless Coyote
 
 # *DOCUMENTATION*
@@ -388,7 +388,7 @@ PYTHON		= python
 CHECK           = sparse
 
 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
-                  -Wbitwise -Wno-return-void $(CF)
+                  -Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
 NOSTDINC_FLAGS  =
 CFLAGS_MODULE   =
 AFLAGS_MODULE   =
@@ -489,6 +489,11 @@ KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
 KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
 endif
 
+RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern -mindirect-branch-register
+RETPOLINE_CFLAGS_CLANG := -mretpoline-external-thunk
+RETPOLINE_CFLAGS := $(call cc-option,$(RETPOLINE_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_CFLAGS_CLANG)))
+export RETPOLINE_CFLAGS
+
 ifeq ($(config-targets),1)
 # ===========================================================================
 # *config targets only - make sure prerequisites are updated, and descend
@@ -579,10 +584,9 @@ ifeq ($(KBUILD_EXTMOD),)
 # To avoid any implicit rule to kick in, define an empty command
 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 
-# If .config is newer than include/config/auto.conf, someone tinkered
-# with it and forgot to run make oldconfig.
-# if auto.conf.cmd is missing then we are probably in a cleaned tree so
-# we execute the config step to be sure to catch updated Kconfig files
+# The actual configuration files used during the build are stored in
+# include/generated/ and include/config/. Update them if .config is newer than
+# include/config/auto.conf (which mirrors .config).
 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
         $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
 else
@@ -822,6 +826,15 @@ KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
 # disable invalid "can't wrap" optimizations for signed / pointers
 KBUILD_CFLAGS   += $(call cc-option,-fno-strict-overflow)
 
+# clang sets -fmerge-all-constants by default as optimization, but this
+# is non-conforming behavior for C and in fact breaks the kernel, so we
+# need to disable it here generally.
+KBUILD_CFLAGS   += $(call cc-option,-fno-merge-all-constants)
+
+# for gcc -fno-merge-all-constants disables everything, but it is fine
+# to have actual conforming behavior enabled.
+KBUILD_CFLAGS   += $(call cc-option,-fmerge-constants)
+
 # Make sure -fstack-check isn't enabled (like gentoo apparently did)
 KBUILD_CFLAGS  += $(call cc-option,-fno-stack-check,)
 
@@ -857,8 +870,7 @@ KBUILD_AFLAGS   += $(ARCH_AFLAGS)   $(KAFLAGS)
 KBUILD_CFLAGS   += $(ARCH_CFLAGS)   $(KCFLAGS)
 
 # Use --build-id when available.
-LDFLAGS_BUILD_ID := $(patsubst -Wl$(comma)%,%,\
-                              $(call cc-ldoption, -Wl$(comma)--build-id,))
+LDFLAGS_BUILD_ID := $(call ld-option, --build-id)
 KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
 
diff --git a/arch/alpha/include/asm/cmpxchg.h b/arch/alpha/include/asm/cmpxchg.h
index 46ebf14aed4e..8a2b331e43fe 100644
--- a/arch/alpha/include/asm/cmpxchg.h
+++ b/arch/alpha/include/asm/cmpxchg.h
@@ -6,7 +6,6 @@
  * Atomic exchange routines.
  */
 
-#define __ASM__MB
 #define ____xchg(type, args...)         __xchg ## type ## _local(args)
 #define ____cmpxchg(type, args...)      __cmpxchg ## type ## _local(args)
 #include <asm/xchg.h>
@@ -33,10 +32,6 @@
         cmpxchg_local((ptr), (o), (n));                                 \
 })
 
-#ifdef CONFIG_SMP
-#undef __ASM__MB
-#define __ASM__MB       "\tmb\n"
-#endif
 #undef ____xchg
 #undef ____cmpxchg
 #define ____xchg(type, args...)         __xchg ##type(args)
@@ -64,7 +59,6 @@
         cmpxchg((ptr), (o), (n));                                       \
 })
 
-#undef __ASM__MB
 #undef ____cmpxchg
 
 #endif /* _ALPHA_CMPXCHG_H */
diff --git a/arch/alpha/include/asm/xchg.h b/arch/alpha/include/asm/xchg.h
index 68dfb3cb7145..e2b59fac5257 100644
--- a/arch/alpha/include/asm/xchg.h
+++ b/arch/alpha/include/asm/xchg.h
@@ -12,6 +12,10 @@
  * Atomic exchange.
  * Since it can be used to implement critical sections
  * it must clobber "memory" (also for interrupts in UP).
+ *
+ * The leading and the trailing memory barriers guarantee that these
+ * operations are fully ordered.
+ *
  */
 
 static inline unsigned long
@@ -19,6 +23,7 @@ ____xchg(_u8, volatile char *m, unsigned long val)
 {
         unsigned long ret, tmp, addr64;
 
+        smp_mb();
         __asm__ __volatile__(
         "       andnot  %4,7,%3\n"
         "       insbl   %1,%4,%1\n"
@@ -28,12 +33,12 @@ ____xchg(_u8, volatile char *m, unsigned long val)
         "       or      %1,%2,%2\n"
         "       stq_c   %2,0(%3)\n"
         "       beq     %2,2f\n"
-                __ASM__MB
         ".subsection 2\n"
         "2:     br      1b\n"
         ".previous"
         : "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
         : "r" ((long)m), "1" (val) : "memory");
+        smp_mb();
 
         return ret;
 }
@@ -43,6 +48,7 @@ ____xchg(_u16, volatile short *m, unsigned long val)
 {
         unsigned long ret, tmp, addr64;
 
+        smp_mb();
         __asm__ __volatile__(
         "       andnot  %4,7,%3\n"
         "       inswl   %1,%4,%1\n"
@@ -52,12 +58,12 @@ ____xchg(_u16, volatile short *m, unsigned long val)
         "       or      %1,%2,%2\n"
         "       stq_c   %2,0(%3)\n"
         "       beq     %2,2f\n"
-                __ASM__MB
         ".subsection 2\n"
         "2:     br      1b\n"
         ".previous"
         : "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
         : "r" ((long)m), "1" (val) : "memory");
+        smp_mb();
 
         return ret;
 }
@@ -67,17 +73,18 @@ ____xchg(_u32, volatile int *m, unsigned long val)
 {
         unsigned long dummy;
 
+        smp_mb();
         __asm__ __volatile__(
         "1:     ldl_l %0,%4\n"
         "       bis $31,%3,%1\n"
         "       stl_c %1,%2\n"
         "       beq %1,2f\n"
-                __ASM__MB
         ".subsection 2\n"
         "2:     br 1b\n"
         ".previous"
         : "=&r" (val), "=&r" (dummy), "=m" (*m)
         : "rI" (val), "m" (*m) : "memory");
+        smp_mb();
 
         return val;
 }
@@ -87,17 +94,18 @@ ____xchg(_u64, volatile long *m, unsigned long val)
 {
         unsigned long dummy;
 
+        smp_mb();
         __asm__ __volatile__(
         "1:     ldq_l %0,%4\n"
         "       bis $31,%3,%1\n"
         "       stq_c %1,%2\n"
         "       beq %1,2f\n"
-                __ASM__MB
         ".subsection 2\n"
         "2:     br 1b\n"
         ".previous"
         : "=&r" (val), "=&r" (dummy), "=m" (*m)
         : "rI" (val), "m" (*m) : "memory");
+        smp_mb();
 
         return val;
 }
@@ -128,10 +136,12 @@ ____xchg(, volatile void *ptr, unsigned long x, int size)
  * store NEW in MEM.  Return the initial value in MEM.  Success is
  * indicated by comparing RETURN with OLD.
  *
- * The memory barrier should be placed in SMP only when we actually
- * make the change. If we don't change anything (so if the returned
- * prev is equal to old) then we aren't acquiring anything new and
- * we don't need any memory barrier as far I can tell.
+ * The leading and the trailing memory barriers guarantee that these
+ * operations are fully ordered.
+ *
+ * The trailing memory barrier is placed in SMP unconditionally, in
+ * order to guarantee that dependency ordering is preserved when a
+ * dependency is headed by an unsuccessful operation.
  */
 
 static inline unsigned long
@@ -139,6 +149,7 @@ ____cmpxchg(_u8, volatile char *m, unsigned char old, unsigned char new)
 {
         unsigned long prev, tmp, cmp, addr64;
 
+        smp_mb();
         __asm__ __volatile__(
         "       andnot  %5,7,%4\n"
         "       insbl   %1,%5,%1\n"
@@ -150,13 +161,13 @@ ____cmpxchg(_u8, volatile char *m, unsigned char old, unsigned char new)
         "       or      %1,%2,%2\n"
         "       stq_c   %2,0(%4)\n"
         "       beq     %2,3f\n"
-                __ASM__MB
         "2:\n"
         ".subsection 2\n"
         "3:     br      1b\n"
         ".previous"
         : "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
         : "r" ((long)m), "Ir" (old), "1" (new) : "memory");
+        smp_mb();
 
         return prev;
 }
@@ -166,6 +177,7 @@ ____cmpxchg(_u16, volatile short *m, unsigned short old, unsigned short new)
 {
         unsigned long prev, tmp, cmp, addr64;
 
+        smp_mb();
         __asm__ __volatile__(
         "       andnot  %5,7,%4\n"
         "       inswl   %1,%5,%1\n"
@@ -177,13 +189,13 @@ ____cmpxchg(_u16, volatile short *m, unsigned short old, unsigned short new)
         "       or      %1,%2,%2\n"
         "       stq_c   %2,0(%4)\n"
         "       beq     %2,3f\n"
-                __ASM__MB
         "2:\n"
         ".subsection 2\n"
         "3:     br      1b\n"
         ".previous"
         : "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
         : "r" ((long)m), "Ir" (old), "1" (new) : "memory");
+        smp_mb();
 
         return prev;
 }
@@ -193,6 +205,7 @@ ____cmpxchg(_u32, volatile int *m, int old, int new)
 {
         unsigned long prev, cmp;
 
+        smp_mb();
         __asm__ __volatile__(
         "1:     ldl_l %0,%5\n"
         "       cmpeq %0,%3,%1\n"
@@ -200,13 +213,13 @@ ____cmpxchg(_u32, volatile int *m, int old, int new)
         "       mov %4,%1\n"
         "       stl_c %1,%2\n"
         "       beq %1,3f\n"
-                __ASM__MB
         "2:\n"
         ".subsection 2\n"
         "3:     br 1b\n"
         ".previous"
         : "=&r"(prev), "=&r"(cmp), "=m"(*m)
         : "r"((long) old), "r"(new), "m"(*m) : "memory");
+        smp_mb();
 
         return prev;
 }
@@ -216,6 +229,7 @@ ____cmpxchg(_u64, volatile long *m, unsigned long old, unsigned long new)
 {
         unsigned long prev, cmp;
 
+        smp_mb();
         __asm__ __volatile__(
         "1:     ldq_l %0,%5\n"
         "       cmpeq %0,%3,%1\n"
@@ -223,13 +237,13 @@ ____cmpxchg(_u64, volatile long *m, unsigned long old, unsigned long new)
         "       mov %4,%1\n"
         "       stq_c %1,%2\n"
         "       beq %1,3f\n"
-                __ASM__MB
         "2:\n"
         ".subsection 2\n"
         "3:     br 1b\n"
         ".previous"
         : "=&r"(prev), "=&r"(cmp), "=m"(*m)
         : "r"((long) old), "r"(new), "m"(*m) : "memory");
+        smp_mb();
 
         return prev;
 }
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index f3a80cf164cc..d76bf4a83740 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -484,7 +484,6 @@ config ARC_CURR_IN_REG
 
 config ARC_EMUL_UNALIGNED
         bool "Emulate unaligned memory access (userspace only)"
-        default N
         select SYSCTL_ARCH_UNALIGN_NO_WARN
         select SYSCTL_ARCH_UNALIGN_ALLOW
         depends on ISA_ARCOMPACT
diff --git a/arch/arc/boot/dts/axs101.dts b/arch/arc/boot/dts/axs101.dts
index 70aec7d6ca60..626b694c7be7 100644
--- a/arch/arc/boot/dts/axs101.dts
+++ b/arch/arc/boot/dts/axs101.dts
@@ -17,6 +17,6 @@
         compatible = "snps,axs101", "snps,arc-sdp";
 
         chosen {
-                bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=tty0 console=ttyS3,115200n8 consoleblank=0 video=1280x720@60";
+                bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=tty0 console=ttyS3,115200n8 consoleblank=0 video=1280x720@60 print-fatal-signals=1";
         };
 };
diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi
index 74d070cd3c13..47b74fbc403c 100644
--- a/arch/arc/boot/dts/axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/axs10x_mb.dtsi
@@ -214,13 +214,13 @@
                         };
 
                         eeprom@0x54{
-                                compatible = "24c01";
+                                compatible = "atmel,24c01";
                                 reg = <0x54>;
                                 pagesize = <0x8>;
                         };
 
                         eeprom@0x57{
-                                compatible = "24c04";
+                                compatible = "atmel,24c04";
                                 reg = <0x57>;
                                 pagesize = <0x8>;
                         };
diff --git a/arch/arc/boot/dts/haps_hs_idu.dts b/arch/arc/boot/dts/haps_hs_idu.dts
index 215cddd0b63b..0c603308aeb3 100644
--- a/arch/arc/boot/dts/haps_hs_idu.dts
+++ b/arch/arc/boot/dts/haps_hs_idu.dts
@@ -22,7 +22,7 @@
         };
 
         chosen {
-                bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=ttyS0,115200n8 debug";
+                bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=ttyS0,115200n8 debug print-fatal-signals=1";
         };
 
         aliases {
diff --git a/arch/arc/boot/dts/nsim_700.dts b/arch/arc/boot/dts/nsim_700.dts
index 5ee96b067c08..ff2f2c70c545 100644
--- a/arch/arc/boot/dts/nsim_700.dts
+++ b/arch/arc/boot/dts/nsim_700.dts
@@ -17,7 +17,7 @@
         interrupt-parent = <&core_intc>;
 
         chosen {
-                bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8";
+                bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 print-fatal-signals=1";
         };
 
         aliases {
diff --git a/arch/arc/boot/dts/nsim_hs.dts b/arch/arc/boot/dts/nsim_hs.dts
index 8d787b251f73..8e2489b16b0a 100644
--- a/arch/arc/boot/dts/nsim_hs.dts
+++ b/arch/arc/boot/dts/nsim_hs.dts
@@ -24,7 +24,7 @@
         };
 
         chosen {
-                bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8";
+                bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 print-fatal-signals=1";
         };
 
         aliases {
diff --git a/arch/arc/boot/dts/nsim_hs_idu.dts b/arch/arc/boot/dts/nsim_hs_idu.dts
index 4f98ebf71fd8..ed12f494721d 100644
--- a/arch/arc/boot/dts/nsim_hs_idu.dts
+++ b/arch/arc/boot/dts/nsim_hs_idu.dts
@@ -15,7 +15,7 @@
         interrupt-parent = <&core_intc>;
 
         chosen {
-                bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8";
+                bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 print-fatal-signals=1";
         };
 
         aliases {
diff --git a/arch/arc/boot/dts/nsimosci.dts b/arch/arc/boot/dts/nsimosci.dts
index 3c391ba565ed..7842e5eb4ab5 100644
--- a/arch/arc/boot/dts/nsimosci.dts
+++ b/arch/arc/boot/dts/nsimosci.dts
@@ -20,7 +20,7 @@
                 /* this is for console on PGU */
                 /* bootargs = "console=tty0 consoleblank=0"; */
                 /* this is for console on serial */
-                bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug video=640x480-24";
+                bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug video=640x480-24 print-fatal-signals=1";
         };
 
         aliases {
diff --git a/arch/arc/boot/dts/nsimosci_hs.dts b/arch/arc/boot/dts/nsimosci_hs.dts
index 14a727cbf4c9..b8838cf2b4ec 100644
--- a/arch/arc/boot/dts/nsimosci_hs.dts
+++ b/arch/arc/boot/dts/nsimosci_hs.dts
@@ -20,7 +20,7 @@
                 /* this is for console on PGU */
                 /* bootargs = "console=tty0 consoleblank=0"; */
                 /* this is for console on serial */
-                bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug video=640x480-24";
+                bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug video=640x480-24 print-fatal-signals=1";
         };
 
         aliases {
diff --git a/arch/arc/boot/dts/nsimosci_hs_idu.dts b/arch/arc/boot/dts/nsimosci_hs_idu.dts
index 5052917d4a99..72a2c723f1f7 100644
--- a/arch/arc/boot/dts/nsimosci_hs_idu.dts
+++ b/arch/arc/boot/dts/nsimosci_hs_idu.dts
@@ -18,7 +18,7 @@
 
         chosen {
                 /* this is for console on serial */
-                bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblan=0 debug video=640x480-24";
+                bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblan=0 debug video=640x480-24 print-fatal-signals=1";
         };
 
         aliases {
diff --git a/arch/arc/include/asm/bug.h b/arch/arc/include/asm/bug.h
index ea022d47896c..21ec82466d62 100644
--- a/arch/arc/include/asm/bug.h
+++ b/arch/arc/include/asm/bug.h
@@ -23,7 +23,8 @@ void die(const char *str, struct pt_regs *regs, unsigned long address);
 
 #define BUG()   do {                                                            \
         pr_warn("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
-        dump_stack();                                                           \
+        barrier_before_unreachable();                                           \
+        __builtin_trap();                                                       \
 } while (0)
 
 #define HAVE_ARCH_BUG
diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h
index 257a68f3c2fe..309f4e6721b3 100644
--- a/arch/arc/include/asm/entry-arcv2.h
+++ b/arch/arc/include/asm/entry-arcv2.h
@@ -184,7 +184,7 @@
 .macro FAKE_RET_FROM_EXCPN
         lr      r9, [status32]
         bic     r9, r9, (STATUS_U_MASK|STATUS_DE_MASK|STATUS_AE_MASK)
-        or      r9, r9, (STATUS_L_MASK|STATUS_IE_MASK)
+        or      r9, r9, STATUS_IE_MASK
         kflag   r9
 .endm
 
diff --git a/arch/arc/kernel/mcip.c b/arch/arc/kernel/mcip.c
index f61a52b01625..5fe84e481654 100644
--- a/arch/arc/kernel/mcip.c
+++ b/arch/arc/kernel/mcip.c
@@ -22,10 +22,79 @@ static DEFINE_RAW_SPINLOCK(mcip_lock);
 
 static char smp_cpuinfo_buf[128];
 
+/*
+ * Set mask to halt GFRC if any online core in SMP cluster is halted.
+ * Only works for ARC HS v3.0+, on earlier versions has no effect.
+ */
+static void mcip_update_gfrc_halt_mask(int cpu)
+{
+        struct bcr_generic gfrc;
+        unsigned long flags;
+        u32 gfrc_halt_mask;
+
+        READ_BCR(ARC_REG_GFRC_BUILD, gfrc);
+
+        /*
+         * CMD_GFRC_SET_CORE and CMD_GFRC_READ_CORE commands were added in
+         * GFRC 0x3 version.
+         */
+        if (gfrc.ver < 0x3)
+                return;
+
+        raw_spin_lock_irqsave(&mcip_lock, flags);
+
+        __mcip_cmd(CMD_GFRC_READ_CORE, 0);
+        gfrc_halt_mask = read_aux_reg(ARC_REG_MCIP_READBACK);
+        gfrc_halt_mask |= BIT(cpu);
+        __mcip_cmd_data(CMD_GFRC_SET_CORE, 0, gfrc_halt_mask);
+
+        raw_spin_unlock_irqrestore(&mcip_lock, flags);
+}
+
+static void mcip_update_debug_halt_mask(int cpu)
+{
+        u32 mcip_mask = 0;
+        unsigned long flags;
+
+        raw_spin_lock_irqsave(&mcip_lock, flags);
+
+        /*
+         * mcip_mask is same for CMD_DEBUG_SET_SELECT and CMD_DEBUG_SET_MASK
+         * commands. So read it once instead of reading both CMD_DEBUG_READ_MASK
+         * and CMD_DEBUG_READ_SELECT.
+         */
+        __mcip_cmd(CMD_DEBUG_READ_SELECT, 0);
+        mcip_mask = read_aux_reg(ARC_REG_MCIP_READBACK);
+
+        mcip_mask |= BIT(cpu);
+
+        __mcip_cmd_data(CMD_DEBUG_SET_SELECT, 0, mcip_mask);
+        /*
+         * Parameter specified halt cause:
+         * STATUS32[H]/actionpoint/breakpoint/self-halt
+         * We choose all of them (0xF).
+         */
+        __mcip_cmd_data(CMD_DEBUG_SET_MASK, 0xF, mcip_mask);
+
+        raw_spin_unlock_irqrestore(&mcip_lock, flags);
+}
+
 static void mcip_setup_per_cpu(int cpu)
 {
+        struct mcip_bcr mp;
+
+        READ_BCR(ARC_REG_MCIP_BCR, mp);
+
         smp_ipi_irq_setup(cpu, IPI_IRQ);
         smp_ipi_irq_setup(cpu, SOFTIRQ_IRQ);
+
+        /* Update GFRC halt mask as new CPU came online */
+        if (mp.gfrc)
+                mcip_update_gfrc_halt_mask(cpu);
+
+        /* Update MCIP debug mask as new CPU came online */
+        if (mp.dbg)
+                mcip_update_debug_halt_mask(cpu);
 }
 
 static void mcip_ipi_send(int cpu)
@@ -101,11 +170,6 @@ static void mcip_probe_n_setup(void)
                 IS_AVAIL1(mp.gfrc, "GFRC"));
 
         cpuinfo_arc700[0].extn.gfrc = mp.gfrc;
-
-        if (mp.dbg) {
-                __mcip_cmd_data(CMD_DEBUG_SET_SELECT, 0, 0xf);
-                __mcip_cmd_data(CMD_DEBUG_SET_MASK, 0xf, 0xf);
-        }
 }
 
 struct plat_smp_ops plat_smp_ops = {
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 9d27331fe69a..b2cae79a25d7 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -51,7 +51,7 @@ static const struct id_to_str arc_cpu_rel[] = {
         { 0x51, "R2.0" },
         { 0x52, "R2.1" },
         { 0x53, "R3.0" },
-        { 0x54, "R4.0" },
+        { 0x54, "R3.10a" },
 #endif
         { 0x00, NULL   }
 };
@@ -373,7 +373,7 @@ static void arc_chk_core_config(void)
 {
         struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
         int saved = 0, present = 0;
-        char *opt_nm = NULL;;
+        char *opt_nm = NULL;
 
         if (!cpu->extn.timer0)
                 panic("Timer0 is not present!\n");
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index efe8b4200a67..21d86c36692b 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -24,6 +24,7 @@
 #include <linux/reboot.h>
 #include <linux/irqdomain.h>
 #include <linux/export.h>
+#include <linux/of_fdt.h>
 
 #include <asm/processor.h>
 #include <asm/setup.h>
@@ -47,6 +48,42 @@ void __init smp_prepare_boot_cpu(void)
 {
 }
 
+static int __init arc_get_cpu_map(const char *name, struct cpumask *cpumask)
+{
+        unsigned long dt_root = of_get_flat_dt_root();
+        const char *buf;
+
+        buf = of_get_flat_dt_prop(dt_root, name, NULL);
+        if (!buf)
+                return -EINVAL;
+
+        if (cpulist_parse(buf, cpumask))
+                return -EINVAL;
+
+        return 0;
+}
+
+/*
+ * Read from DeviceTree and setup cpu possible mask. If there is no
+ * "possible-cpus" property in DeviceTree pretend all [0..NR_CPUS-1] exist.
+ */
+static void __init arc_init_cpu_possible(void)
+{
+        struct cpumask cpumask;
+
+        if (arc_get_cpu_map("possible-cpus", &cpumask)) {
+                pr_warn("Failed to get possible-cpus from dtb, pretending all %u cpus exist\n",
+                        NR_CPUS);
+
+                cpumask_setall(&cpumask);
+        }
+
+        if (!cpumask_test_cpu(0, &cpumask))
+                panic("Master cpu (cpu[0]) is missed in cpu possible mask!");
+
+        init_cpu_possible(&cpumask);
+}
+
 /*
  * Called from setup_arch() before calling setup_processor()
  *
@@ -58,10 +95,7 @@ void __init smp_prepare_boot_cpu(void)
  */
 void __init smp_init_cpus(void)
 {
-        unsigned int i;
-
-        for (i = 0; i < NR_CPUS; i++)
-                set_cpu_possible(i, true);
+        arc_init_cpu_possible();
 
         if (plat_smp_ops.init_early_smp)
                 plat_smp_ops.init_early_smp();
@@ -70,16 +104,12 @@ void __init smp_init_cpus(void)
 /* called from init ( ) =>  process 1 */
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-        int i;
-
         /*
          * if platform didn't set the present map already, do it now
          * boot cpu is set to present already by init/main.c
          */
-        if (num_present_cpus() <= 1) {
-                for (i = 0; i < max_cpus; i++)
-                        set_cpu_present(i, true);
-        }
+        if (num_present_cpus() <= 1)
+                init_cpu_present(cpu_possible_mask);
 }
 
 void __init smp_cpus_done(unsigned int max_cpus)
diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index 333daab7def0..183391d4d33a 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -366,7 +366,7 @@ static void init_unwind_hdr(struct unwind_table *table,
         return;
 
 ret_err:
-        panic("Attention !!! Dwarf FDE parsing errors\n");;
+        panic("Attention !!! Dwarf FDE parsing errors\n");
 }
 
 #ifdef CONFIG_MODULES
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index eee924dfffa6..2072f3451e9c 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -780,7 +780,10 @@ noinline static void slc_entire_op(const int op)
 
         write_aux_reg(r, ctrl);
 
-        write_aux_reg(ARC_REG_SLC_INVALIDATE, 1);
+        if (op & OP_INV)        /* Inv or flush-n-inv use same cmd reg */
+                write_aux_reg(ARC_REG_SLC_INVALIDATE, 0x1);
+        else
+                write_aux_reg(ARC_REG_SLC_FLUSH, 0x1);
 
         /* Make sure "busy" bit reports correct stataus, see STAR 9001165532 */
         read_aux_reg(r);
diff --git a/arch/arm/boot/dts/bcm11351.dtsi b/arch/arm/boot/dts/bcm11351.dtsi
index 18045c38bcf1..db7cded1b7ad 100644
--- a/arch/arm/boot/dts/bcm11351.dtsi
+++ b/arch/arm/boot/dts/bcm11351.dtsi
@@ -55,7 +55,7 @@
                       <0x3ff00100 0x100>;
         };
 
-        smc@0x3404c000 {
+        smc@3404c000 {
                 compatible = "brcm,bcm11351-smc", "brcm,kona-smc";
                 reg = <0x3404c000 0x400>; /* 1 KiB in SRAM */
         };
diff --git a/arch/arm/boot/dts/bcm21664.dtsi b/arch/arm/boot/dts/bcm21664.dtsi
index 6dde95f21cef..266f2611dc22 100644
--- a/arch/arm/boot/dts/bcm21664.dtsi
+++ b/arch/arm/boot/dts/bcm21664.dtsi
@@ -55,7 +55,7 @@
                       <0x3ff00100 0x100>;
         };
 
-        smc@0x3404e000 {
+        smc@3404e000 {
                 compatible = "brcm,bcm21664-smc", "brcm,kona-smc";
                 reg = <0x3404e000 0x400>; /* 1 KiB in SRAM */
         };
diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index 0e3d2a5ff208..a5c3824c8056 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -18,10 +18,10 @@
         soc {
                 ranges = <0x7e000000 0x20000000 0x02000000>;
                 dma-ranges = <0x40000000 0x00000000 0x20000000>;
+        };
 
-                arm-pmu {
-                        compatible = "arm,arm1176-pmu";
-                };
+        arm-pmu {
+                compatible = "arm,arm1176-pmu";
         };
 };
 
diff --git a/arch/arm/boot/dts/bcm2836.dtsi b/arch/arm/boot/dts/bcm2836.dtsi
index 1dfd76442777..c933e8413884 100644
--- a/arch/arm/boot/dts/bcm2836.dtsi
+++ b/arch/arm/boot/dts/bcm2836.dtsi
@@ -9,19 +9,19 @@
                          <0x40000000 0x40000000 0x00001000>;
                 dma-ranges = <0xc0000000 0x00000000 0x3f000000>;
 
-                local_intc: local_intc {
+                local_intc: local_intc@40000000 {
                         compatible = "brcm,bcm2836-l1-intc";
                         reg = <0x40000000 0x100>;
                         interrupt-controller;
                         #interrupt-cells = <2>;
                         interrupt-parent = <&local_intc>;
                 };
+        };
 
-                arm-pmu {
-                        compatible = "arm,cortex-a7-pmu";
-                        interrupt-parent = <&local_intc>;
-                        interrupts = <9 IRQ_TYPE_LEVEL_HIGH>;
-                };
+        arm-pmu {
+                compatible = "arm,cortex-a7-pmu";
+                interrupt-parent = <&local_intc>;
+                interrupts = <9 IRQ_TYPE_LEVEL_HIGH>;
         };
 
         timer {
diff --git a/arch/arm/boot/dts/bcm2837.dtsi b/arch/arm/boot/dts/bcm2837.dtsi
index efa7d3387ab2..7704bb029605 100644
--- a/arch/arm/boot/dts/bcm2837.dtsi
+++ b/arch/arm/boot/dts/bcm2837.dtsi
@@ -8,7 +8,7 @@
                          <0x40000000 0x40000000 0x00001000>;
                 dma-ranges = <0xc0000000 0x00000000 0x3f000000>;
 
-                local_intc: local_intc {
+                local_intc: local_intc@40000000 {
                         compatible = "brcm,bcm2836-l1-intc";
                         reg = <0x40000000 0x100>;
                         interrupt-controller;
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index 18db25a5a66e..9d293decf8d3 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -465,7 +465,7 @@
                         status = "disabled";
                 };
 
-                aux: aux@0x7e215000 {
+                aux: aux@7e215000 {
                         compatible = "brcm,bcm2835-aux";
                         #clock-cells = <1>;
                         reg = <0x7e215000 0x8>;
diff --git a/arch/arm/boot/dts/bcm958625hr.dts b/arch/arm/boot/dts/bcm958625hr.dts
index 6a44b8021702..f0e2008f7490 100644
--- a/arch/arm/boot/dts/bcm958625hr.dts
+++ b/arch/arm/boot/dts/bcm958625hr.dts
@@ -49,7 +49,7 @@
 
         memory {
                 device_type = "memory";
-                reg = <0x60000000 0x80000000>;
+                reg = <0x60000000 0x20000000>;
         };
 
         gpio-restart {
diff --git a/arch/arm/boot/dts/gemini-dlink-dns-313.dts b/arch/arm/boot/dts/gemini-dlink-dns-313.dts
index 08568ce24d06..da8bb9d60f99 100644
--- a/arch/arm/boot/dts/gemini-dlink-dns-313.dts
+++ b/arch/arm/boot/dts/gemini-dlink-dns-313.dts
@@ -269,7 +269,7 @@
 
                 sata: sata@46000000 {
                         /* The ROM uses this muxmode */
-                        cortina,gemini-ata-muxmode = <3>;
+                        cortina,gemini-ata-muxmode = <0>;
                         cortina,gemini-enable-sata-bridge;
                         status = "okay";
                 };
diff --git a/arch/arm/boot/dts/imx6dl-icore-rqs.dts b/arch/arm/boot/dts/imx6dl-icore-rqs.dts
index cf42c2f5cdc7..1281bc39b7ab 100644
--- a/arch/arm/boot/dts/imx6dl-icore-rqs.dts
+++ b/arch/arm/boot/dts/imx6dl-icore-rqs.dts
@@ -42,7 +42,7 @@
 
 /dts-v1/;
 
-#include "imx6q.dtsi"
+#include "imx6dl.dtsi"
 #include "imx6qdl-icore-rqs.dtsi"
 
 / {
diff --git a/arch/arm/boot/dts/logicpd-som-lv.dtsi b/arch/arm/boot/dts/logicpd-som-lv.dtsi
index c1aa7a4518fb..a30ee9fcb3ae 100644
--- a/arch/arm/boot/dts/logicpd-som-lv.dtsi
+++ b/arch/arm/boot/dts/logicpd-som-lv.dtsi
@@ -71,6 +71,8 @@
 };
 
 &i2c1 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&i2c1_pins>;
         clock-frequency = <2600000>;
 
         twl: twl@48 {
@@ -189,7 +191,12 @@
                 >;
         };
 
-
+        i2c1_pins: pinmux_i2c1_pins {
+                pinctrl-single,pins = <
+                        OMAP3_CORE1_IOPAD(0x21ba, PIN_INPUT | MUX_MODE0)        /* i2c1_scl.i2c1_scl */
+                        OMAP3_CORE1_IOPAD(0x21bc, PIN_INPUT | MUX_MODE0)        /* i2c1_sda.i2c1_sda */
+                >;
+        };
 };
 
 &omap3_pmx_wkup {
diff --git a/arch/arm/boot/dts/logicpd-torpedo-som.dtsi b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
index b50b796e15c7..47915447a826 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
+++ b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
@@ -66,6 +66,8 @@
 };
 
 &i2c1 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&i2c1_pins>;
         clock-frequency = <2600000>;
 
         twl: twl@48 {
@@ -136,6 +138,12 @@
                         OMAP3_CORE1_IOPAD(0x21b8, PIN_INPUT | MUX_MODE0)        /* hsusb0_data7.hsusb0_data7 */
                 >;
         };
+        i2c1_pins: pinmux_i2c1_pins {
+                pinctrl-single,pins = <
+                        OMAP3_CORE1_IOPAD(0x21ba, PIN_INPUT | MUX_MODE0)        /* i2c1_scl.i2c1_scl */
+                        OMAP3_CORE1_IOPAD(0x21bc, PIN_INPUT | MUX_MODE0)        /* i2c1_sda.i2c1_sda */
+                >;
+        };
 };
 
 &uart2 {
diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index ec2c8baef62a..592e17fd4eeb 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -47,7 +47,7 @@
                         gpios = <&gpio3 19 GPIO_ACTIVE_LOW>;    /* gpio3_83 */
                         wakeup-source;
                         autorepeat;
-                        debounce_interval = <50>;
+                        debounce-interval = <50>;
                 };
         };
 
diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
index 3b704cfed69a..a97458112ff6 100644
--- a/arch/arm/boot/dts/rk3036.dtsi
+++ b/arch/arm/boot/dts/rk3036.dtsi
@@ -280,7 +280,7 @@
                 max-frequency = <37500000>;
                 clocks = <&cru HCLK_SDIO>, <&cru SCLK_SDIO>,
                          <&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
-                clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+                clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
                 fifo-depth = <0x100>;
                 interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
                 resets = <&cru SRST_SDIO>;
@@ -298,7 +298,7 @@
                 max-frequency = <37500000>;
                 clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
                          <&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
-                clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+                clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
                 default-sample-phase = <158>;
                 disable-wp;
                 dmas = <&pdma 12>;
diff --git a/arch/arm/boot/dts/rk322x.dtsi b/arch/arm/boot/dts/rk322x.dtsi
index 780ec3a99b21..341deaf62ff6 100644
--- a/arch/arm/boot/dts/rk322x.dtsi
+++ b/arch/arm/boot/dts/rk322x.dtsi
@@ -621,7 +621,7 @@
                 interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
                 clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>,
                          <&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>;
-                clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+                clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
                 fifo-depth = <0x100>;
                 pinctrl-names = "default";
                 pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_bus4>;
@@ -634,7 +634,7 @@
                 interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
                 clocks = <&cru HCLK_SDIO>, <&cru SCLK_SDIO>,
                          <&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
-                clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+                clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
                 fifo-depth = <0x100>;
                 pinctrl-names = "default";
                 pinctrl-0 = <&sdio_clk &sdio_cmd &sdio_bus4>;
@@ -649,7 +649,7 @@
                 max-frequency = <37500000>;
                 clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
                          <&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
-                clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+                clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
                 bus-width = <8>;
                 default-sample-phase = <158>;
                 fifo-depth = <0x100>;
diff --git a/arch/arm/boot/dts/rk3288-phycore-som.dtsi b/arch/arm/boot/dts/rk3288-phycore-som.dtsi
index 99cfae875e12..5eae4776ffde 100644
--- a/arch/arm/boot/dts/rk3288-phycore-som.dtsi
+++ b/arch/arm/boot/dts/rk3288-phycore-som.dtsi
@@ -110,26 +110,6 @@
         };
 };
 
-&cpu0 {
-        cpu0-supply = <&vdd_cpu>;
-        operating-points = <
-                /* KHz    uV */
-                1800000 1400000
-                1608000 1350000
-                1512000 1300000
-                1416000 1200000
-                1200000 1100000
-                1008000 1050000
-                 816000 1000000
-                 696000  950000
-                 600000  900000
-                 408000  900000
-                 312000  900000
-                 216000  900000
-                 126000  900000
-        >;
-};
-
 &emmc {
         status = "okay";
         bus-width = <8>;
diff --git a/arch/arm/boot/dts/zx296702.dtsi b/arch/arm/boot/dts/zx296702.dtsi
index 8a74efdb6360..240e7a23d81f 100644
--- a/arch/arm/boot/dts/zx296702.dtsi
+++ b/arch/arm/boot/dts/zx296702.dtsi
@@ -56,7 +56,7 @@
                         clocks = <&topclk ZX296702_A9_PERIPHCLK>;
                 };
 
-                l2cc: l2-cache-controller@0x00c00000 {
+                l2cc: l2-cache-controller@c00000 {
                         compatible = "arm,pl310-cache";
                         reg = <0x00c00000 0x1000>;
                         cache-unified;
@@ -67,30 +67,30 @@
                         arm,double-linefill-incr = <0>;
                 };
 
-                pcu: pcu@0xa0008000 {
+                pcu: pcu@a0008000 {
                         compatible = "zte,zx296702-pcu";
                         reg = <0xa0008000 0x1000>;
                 };
 
-                topclk: topclk@0x09800000 {
+                topclk: topclk@9800000 {
                         compatible = "zte,zx296702-topcrm-clk";
                         reg = <0x09800000 0x1000>;
                         #clock-cells = <1>;
                 };
 
-                lsp1clk: lsp1clk@0x09400000 {
+                lsp1clk: lsp1clk@9400000 {
                         compatible = "zte,zx296702-lsp1crpm-clk";
                         reg = <0x09400000 0x1000>;
                         #clock-cells = <1>;
                 };
 
-                lsp0clk: lsp0clk@0x0b000000 {
+                lsp0clk: lsp0clk@b000000 {
                         compatible = "zte,zx296702-lsp0crpm-clk";
                         reg = <0x0b000000 0x1000>;
                         #clock-cells = <1>;
                 };
 
-                uart0: serial@0x09405000 {
+                uart0: serial@9405000 {
                         compatible = "zte,zx296702-uart";
                         reg = <0x09405000 0x1000>;
                         interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
@@ -98,7 +98,7 @@
                         status = "disabled";
                 };
 
-                uart1: serial@0x09406000 {
+                uart1: serial@9406000 {
                         compatible = "zte,zx296702-uart";
                         reg = <0x09406000 0x1000>;
                         interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
@@ -106,7 +106,7 @@
                         status = "disabled";
                 };
 
-                mmc0: mmc@0x09408000 {
+                mmc0: mmc@9408000 {
                         compatible = "snps,dw-mshc";
                         #address-cells = <1>;
                         #size-cells = <0>;
@@ -119,7 +119,7 @@
                         status = "disabled";
                 };
 
-                mmc1: mmc@0x0b003000 {
+                mmc1: mmc@b003000 {
                         compatible = "snps,dw-mshc";
                         #address-cells = <1>;
                         #size-cells = <0>;
@@ -132,7 +132,7 @@
                         status = "disabled";
                 };
 
-                sysctrl: sysctrl@0xa0007000 {
+                sysctrl: sysctrl@a0007000 {
                         compatible = "zte,sysctrl", "syscon";
                         reg = <0xa0007000 0x1000>;
                 };
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 2f145c4af93a..92674f247a12 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -319,7 +319,7 @@ CONFIG_MEDIA_CAMERA_SUPPORT=y
 CONFIG_RC_CORE=m
 CONFIG_MEDIA_CONTROLLER=y
 CONFIG_VIDEO_V4L2_SUBDEV_API=y
-CONFIG_LIRC=m
+CONFIG_LIRC=y
 CONFIG_RC_DEVICES=y
 CONFIG_IR_RX51=m
 CONFIG_V4L_PLATFORM_DRIVERS=y
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 629f8e9981f1..cf2701cb0de8 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -83,7 +83,7 @@ static void dummy_clock_access(struct timespec64 *ts)
 }
 
 static clock_access_fn __read_persistent_clock = dummy_clock_access;
-static clock_access_fn __read_boot_clock = dummy_clock_access;;
+static clock_access_fn __read_boot_clock = dummy_clock_access;
 
 void read_persistent_clock64(struct timespec64 *ts)
 {
diff --git a/arch/arm/kvm/hyp/Makefile b/arch/arm/kvm/hyp/Makefile
index 5638ce0c9524..63d6b404d88e 100644
--- a/arch/arm/kvm/hyp/Makefile
+++ b/arch/arm/kvm/hyp/Makefile
@@ -7,6 +7,8 @@ ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING
 
 KVM=../../../../virt/kvm
 
+CFLAGS_ARMV7VE             :=$(call cc-option, -march=armv7ve)
+
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
@@ -15,7 +17,10 @@ obj-$(CONFIG_KVM_ARM_HOST) += tlb.o
 obj-$(CONFIG_KVM_ARM_HOST) += cp15-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += vfp.o
 obj-$(CONFIG_KVM_ARM_HOST) += banked-sr.o
+CFLAGS_banked-sr.o         += $(CFLAGS_ARMV7VE)
+
 obj-$(CONFIG_KVM_ARM_HOST) += entry.o
 obj-$(CONFIG_KVM_ARM_HOST) += hyp-entry.o
 obj-$(CONFIG_KVM_ARM_HOST) += switch.o
+CFLAGS_switch.o            += $(CFLAGS_ARMV7VE)
 obj-$(CONFIG_KVM_ARM_HOST) += s2-setup.o
diff --git a/arch/arm/kvm/hyp/banked-sr.c b/arch/arm/kvm/hyp/banked-sr.c
index 111bda8cdebd..be4b8b0a40ad 100644
--- a/arch/arm/kvm/hyp/banked-sr.c
+++ b/arch/arm/kvm/hyp/banked-sr.c
@@ -20,6 +20,10 @@
 
 #include <asm/kvm_hyp.h>
 
+/*
+ * gcc before 4.9 doesn't understand -march=armv7ve, so we have to
+ * trick the assembler.
+ */
 __asm__(".arch_extension     virt");
 
 void __hyp_text __banked_save_state(struct kvm_cpu_context *ctxt)
diff --git a/arch/arm/mach-clps711x/board-dt.c b/arch/arm/mach-clps711x/board-dt.c
index ee1f83b1a332..4c89a8e9a2e3 100644
--- a/arch/arm/mach-clps711x/board-dt.c
+++ b/arch/arm/mach-clps711x/board-dt.c
@@ -69,7 +69,7 @@ static void clps711x_restart(enum reboot_mode mode, const char *cmd)
         soft_restart(0);
 }
 
-static const char *clps711x_compat[] __initconst = {
+static const char *const clps711x_compat[] __initconst = {
         "cirrus,ep7209",
         NULL
 };
diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index e457f299cd44..d6b11907380c 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -368,7 +368,7 @@ static struct spi_eeprom at25640a = {
         .flags          = EE_ADDR2,
 };
 
-static struct spi_board_info dm355_evm_spi_info[] __initconst = {
+static const struct spi_board_info dm355_evm_spi_info[] __initconst = {
         {
                 .modalias       = "at25",
                 .platform_data  = &at25640a,
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index be997243447b..fad9a5611a5d 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -217,7 +217,7 @@ static struct spi_eeprom at25640a = {
         .flags          = EE_ADDR2,
 };
 
-static struct spi_board_info dm355_leopard_spi_info[] __initconst = {
+static const struct spi_board_info dm355_leopard_spi_info[] __initconst = {
         {
                 .modalias       = "at25",
                 .platform_data  = &at25640a,
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index e75741fb2c1d..e3780986d2a3 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -726,7 +726,7 @@ static struct spi_eeprom at25640 = {
         .flags          = EE_ADDR2,
 };
 
-static struct spi_board_info dm365_evm_spi_info[] __initconst = {
+static const struct spi_board_info dm365_evm_spi_info[] __initconst = {
         {
                 .modalias       = "at25",
                 .platform_data  = &at25640,
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index 6b32dc527edc..2c20599cc350 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -41,7 +41,7 @@ config MACH_ARMADA_375
         depends on ARCH_MULTI_V7
         select ARMADA_370_XP_IRQ
         select ARM_ERRATA_720789
-        select ARM_ERRATA_753970
+        select PL310_ERRATA_753970
         select ARM_GIC
         select ARMADA_375_CLK
         select HAVE_ARM_SCU
@@ -57,7 +57,7 @@ config MACH_ARMADA_38X
         bool "Marvell Armada 380/385 boards"
         depends on ARCH_MULTI_V7
         select ARM_ERRATA_720789
-        select ARM_ERRATA_753970
+        select PL310_ERRATA_753970
         select ARM_GIC
         select ARM_GLOBAL_TIMER
         select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
index 43e3e188f521..fa512413a471 100644
--- a/arch/arm/mach-omap1/clock.c
+++ b/arch/arm/mach-omap1/clock.c
@@ -1011,17 +1011,17 @@ static int clk_debugfs_register_one(struct clk *c)
                 return -ENOMEM;
         c->dent = d;
 
-        d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usecount);
+        d = debugfs_create_u8("usecount", S_IRUGO, c->dent, &c->usecount);
         if (!d) {
                 err = -ENOMEM;
                 goto err_out;
         }
-        d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate);
+        d = debugfs_create_ulong("rate", S_IRUGO, c->dent, &c->rate);
         if (!d) {
                 err = -ENOMEM;
                 goto err_out;
         }
-        d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags);
+        d = debugfs_create_x8("flags", S_IRUGO, c->dent, &c->flags);
         if (!d) {
                 err = -ENOMEM;
                 goto err_out;
diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
index 4bb6751864a5..fc5fb776a710 100644
--- a/arch/arm/mach-omap2/omap-wakeupgen.c
+++ b/arch/arm/mach-omap2/omap-wakeupgen.c
@@ -299,8 +299,6 @@ static void irq_save_context(void)
         if (soc_is_dra7xx())
                 return;
 
-        if (!sar_base)
-                sar_base = omap4_get_sar_ram_base();
         if (wakeupgen_ops && wakeupgen_ops->save_context)
                 wakeupgen_ops->save_context();
 }
@@ -598,6 +596,8 @@ static int __init wakeupgen_init(struct device_node *node,
         irq_hotplug_init();
         irq_pm_init();
 
+        sar_base = omap4_get_sar_ram_base();
+
         return 0;
 }
 IRQCHIP_DECLARE(ti_wakeupgen, "ti,omap4-wugen-mpu", wakeupgen_init);
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 124f9af34a15..34156eca8e23 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -977,6 +977,9 @@ static int _enable_clocks(struct omap_hwmod *oh)
 
         pr_debug("omap_hwmod: %s: enabling clocks\n", oh->name);
 
+        if (oh->flags & HWMOD_OPT_CLKS_NEEDED)
+                _enable_optional_clocks(oh);
+
         if (oh->_clk)
                 clk_enable(oh->_clk);
 
@@ -985,9 +988,6 @@ static int _enable_clocks(struct omap_hwmod *oh)
                         clk_enable(os->_clk);
         }
 
-        if (oh->flags & HWMOD_OPT_CLKS_NEEDED)
-                _enable_optional_clocks(oh);
-
         /* The opt clocks are controlled by the device driver. */
 
         return 0;
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 366158a54fcd..6f68576e5695 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -186,7 +186,7 @@ static void omap_pm_end(void)
         cpu_idle_poll_ctrl(false);
 }
 
-static void omap_pm_finish(void)
+static void omap_pm_wake(void)
 {
         if (soc_is_omap34xx())
                 omap_prcm_irq_complete();
@@ -196,7 +196,7 @@ static const struct platform_suspend_ops omap_pm_ops = {
         .begin          = omap_pm_begin,
         .end            = omap_pm_end,
         .enter          = omap_pm_enter,
-        .finish         = omap_pm_finish,
+        .wake           = omap_pm_wake,
         .valid          = suspend_valid_only_mem,
 };
 
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index ece09c9461f7..d61fbd7a2840 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -156,12 +156,6 @@ static struct clock_event_device clockevent_gpt = {
         .tick_resume            = omap2_gp_timer_shutdown,
 };
 
-static struct property device_disabled = {
-        .name = "status",
-        .length = sizeof("disabled"),
-        .value = "disabled",
-};
-
 static const struct of_device_id omap_timer_match[] __initconst = {
         { .compatible = "ti,omap2420-timer", },
         { .compatible = "ti,omap3430-timer", },
@@ -203,8 +197,17 @@ static struct device_node * __init omap_get_timer_dt(const struct of_device_id *
                                   of_get_property(np, "ti,timer-secure", NULL)))
                         continue;
 
-                if (!of_device_is_compatible(np, "ti,omap-counter32k"))
-                        of_add_property(np, &device_disabled);
+                if (!of_device_is_compatible(np, "ti,omap-counter32k")) {
+                        struct property *prop;
+
+                        prop = kzalloc(sizeof(*prop), GFP_KERNEL);
+                        if (!prop)
+                                return NULL;
+                        prop->name = "status";
+                        prop->value = "disabled";
+                        prop->length = strlen(prop->value);
+                        of_add_property(np, prop);
+                }
                 return np;
         }
 
diff --git a/arch/arm/mach-orion5x/Kconfig b/arch/arm/mach-orion5x/Kconfig
index 2a7bb6ccdcb7..a810f4dd34b1 100644
--- a/arch/arm/mach-orion5x/Kconfig
+++ b/arch/arm/mach-orion5x/Kconfig
@@ -58,7 +58,6 @@ config MACH_KUROBOX_PRO
 
 config MACH_DNS323
         bool "D-Link DNS-323"
-        select GENERIC_NET_UTILS
         select I2C_BOARDINFO if I2C
         help
           Say 'Y' here if you want your kernel to support the
@@ -66,7 +65,6 @@ config MACH_DNS323
 
 config MACH_TS209
         bool "QNAP TS-109/TS-209"
-        select GENERIC_NET_UTILS
         help
           Say 'Y' here if you want your kernel to support the
           QNAP TS-109/TS-209 platform.
@@ -101,7 +99,6 @@ config MACH_LINKSTATION_LS_HGL
 
 config MACH_TS409
         bool "QNAP TS-409"
-        select GENERIC_NET_UTILS
         help
           Say 'Y' here if you want your kernel to support the
           QNAP TS-409 platform.
diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c
index cd483bfb5ca8..d13344b2ddcd 100644
--- a/arch/arm/mach-orion5x/dns323-setup.c
+++ b/arch/arm/mach-orion5x/dns323-setup.c
@@ -173,10 +173,42 @@ static struct mv643xx_eth_platform_data dns323_eth_data = {
         .phy_addr = MV643XX_ETH_PHY_ADDR(8),
 };
 
+/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
+ * functions be kept somewhere?
+ */
+static int __init dns323_parse_hex_nibble(char n)
+{
+        if (n >= '0' && n <= '9')
+                return n - '0';
+
+        if (n >= 'A' && n <= 'F')
+                return n - 'A' + 10;
+
+        if (n >= 'a' && n <= 'f')
+                return n - 'a' + 10;
+
+        return -1;
+}
+
+static int __init dns323_parse_hex_byte(const char *b)
+{
+        int hi;
+        int lo;
+
+        hi = dns323_parse_hex_nibble(b[0]);
+        lo = dns323_parse_hex_nibble(b[1]);
+
+        if (hi < 0 || lo < 0)
+                return -1;
+
+        return (hi << 4) | lo;
+}
+
 static int __init dns323_read_mac_addr(void)
 {
         u_int8_t addr[6];
-        void __iomem *mac_page;
+        int i;
+        char *mac_page;
 
         /* MAC address is stored as a regular ol' string in /dev/mtdblock4
          * (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80).
@@ -185,8 +217,23 @@ static int __init dns323_read_mac_addr(void)
         if (!mac_page)
                 return -ENOMEM;
 
-        if (!mac_pton((__force const char *) mac_page, addr))
-                goto error_fail;
+        /* Sanity check the string we're looking at */
+        for (i = 0; i < 5; i++) {
+                if (*(mac_page + (i * 3) + 2) != ':') {
+                        goto error_fail;
+                }
+        }
+
+        for (i = 0; i < 6; i++) {
+                int byte;
+
+                byte = dns323_parse_hex_byte(mac_page + (i * 3));
+                if (byte < 0) {
+                        goto error_fail;
+                }
+
+                addr[i] = byte;
+        }
 
         iounmap(mac_page);
         printk("DNS-323: Found ethernet MAC address: %pM\n", addr);
diff --git a/arch/arm/mach-orion5x/tsx09-common.c b/arch/arm/mach-orion5x/tsx09-common.c
index 89774985d380..905d4f2dd0b8 100644
--- a/arch/arm/mach-orion5x/tsx09-common.c
+++ b/arch/arm/mach-orion5x/tsx09-common.c
@@ -53,12 +53,53 @@ struct mv643xx_eth_platform_data qnap_tsx09_eth_data = {
         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
 };
 
+static int __init qnap_tsx09_parse_hex_nibble(char n)
+{
+        if (n >= '0' && n <= '9')
+                return n - '0';
+
+        if (n >= 'A' && n <= 'F')
+                return n - 'A' + 10;
+
+        if (n >= 'a' && n <= 'f')
+                return n - 'a' + 10;
+
+        return -1;
+}
+
+static int __init qnap_tsx09_parse_hex_byte(const char *b)
+{
+        int hi;
+        int lo;
+
+        hi = qnap_tsx09_parse_hex_nibble(b[0]);
+        lo = qnap_tsx09_parse_hex_nibble(b[1]);
+
+        if (hi < 0 || lo < 0)
+                return -1;
+
+        return (hi << 4) | lo;
+}
+
 static int __init qnap_tsx09_check_mac_addr(const char *addr_str)
 {
         u_int8_t addr[6];
+        int i;
 
-        if (!mac_pton(addr_str, addr))
-                return -1;
+        for (i = 0; i < 6; i++) {
+                int byte;
+
+                /*
+                 * Enforce "xx:xx:xx:xx:xx:xx\n" format.
+                 */
+                if (addr_str[(i * 3) + 2] != ((i < 5) ? ':' : '\n'))
+                        return -1;
+
+                byte = qnap_tsx09_parse_hex_byte(addr_str + (i * 3));
+                if (byte < 0)
+                        return -1;
+                addr[i] = byte;
+        }
 
         printk(KERN_INFO "tsx09: found ethernet mac address %pM\n", addr);
 
@@ -77,12 +118,12 @@ void __init qnap_tsx09_find_mac_addr(u32 mem_base, u32 size)
         unsigned long addr;
 
         for (addr = mem_base; addr < (mem_base + size); addr += 1024) {
-                void __iomem *nor_page;
+                char *nor_page;
                 int ret = 0;
 
                 nor_page = ioremap(addr, 1024);
                 if (nor_page != NULL) {
-                        ret = qnap_tsx09_check_mac_addr((__force const char *)nor_page);
+                        ret = qnap_tsx09_check_mac_addr(nor_page);
                         iounmap(nor_page);
                 }
 
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 57058ac46f49..7e5d7a083707 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -23,7 +23,6 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
-#include <linux/perf/arm_pmu.h>
 #include <linux/regulator/machine.h>
 
 #include <asm/outercache.h>
@@ -112,37 +111,6 @@ static void ux500_restart(enum reboot_mode mode, const char *cmd)
         prcmu_system_reset(0);
 }
 
-/*
- * The PMU IRQ lines of two cores are wired together into a single interrupt.
- * Bounce the interrupt to the other core if it's not ours.
- */
-static irqreturn_t db8500_pmu_handler(int irq, void *dev, irq_handler_t handler)
-{
-        irqreturn_t ret = handler(irq, dev);
-        int other = !smp_processor_id();
-
-        if (ret == IRQ_NONE && cpu_online(other))
-                irq_set_affinity(irq, cpumask_of(other));
-
-        /*
-         * We should be able to get away with the amount of IRQ_NONEs we give,
-         * while still having the spurious IRQ detection code kick in if the
-         * interrupt really starts hitting spuriously.
-         */
-        return ret;
-}
-
-static struct arm_pmu_platdata db8500_pmu_platdata = {
-        .handle_irq             = db8500_pmu_handler,
-        .irq_flags              = IRQF_NOBALANCING | IRQF_NO_THREAD,
-};
-
-static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
-        /* Requires call-back bindings. */
-        OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
-        {},
-};
-
 static struct of_dev_auxdata u8540_auxdata_lookup[] __initdata = {
         OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu", NULL),
         {},
@@ -165,9 +133,6 @@ static void __init u8500_init_machine(void)
         if (of_machine_is_compatible("st-ericsson,u8540"))
                 of_platform_populate(NULL, u8500_local_bus_nodes,
                                      u8540_auxdata_lookup, NULL);
-        else
-                of_platform_populate(NULL, u8500_local_bus_nodes,
-                                     u8500_auxdata_lookup, NULL);
 }
 
 static const char * stericsson_dt_platform_compat[] = {
diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c
index aff6994950ba..a2399fd66e97 100644
--- a/arch/arm/plat-orion/common.c
+++ b/arch/arm/plat-orion/common.c
@@ -472,28 +472,27 @@ void __init orion_ge11_init(struct mv643xx_eth_platform_data *eth_data,
 /*****************************************************************************
  * Ethernet switch
  ****************************************************************************/
-static __initconst const char *orion_ge00_mvmdio_bus_name = "orion-mii";
-static __initdata struct mdio_board_info
-                  orion_ge00_switch_board_info;
+static __initdata struct mdio_board_info orion_ge00_switch_board_info = {
+        .bus_id   = "orion-mii",
+        .modalias = "mv88e6085",
+};
 
 void __init orion_ge00_switch_init(struct dsa_chip_data *d)
 {
-        struct mdio_board_info *bd;
         unsigned int i;
 
         if (!IS_BUILTIN(CONFIG_PHYLIB))
                 return;
 
-        for (i = 0; i < ARRAY_SIZE(d->port_names); i++)
-                if (!strcmp(d->port_names[i], "cpu"))
+        for (i = 0; i < ARRAY_SIZE(d->port_names); i++) {
+                if (!strcmp(d->port_names[i], "cpu")) {
+                        d->netdev[i] = &orion_ge00.dev;
                         break;
+                }
+        }
 
-        bd = &orion_ge00_switch_board_info;
-        bd->bus_id = orion_ge00_mvmdio_bus_name;
-        bd->mdio_addr = d->sw_addr;
-        d->netdev[i] = &orion_ge00.dev;
-        strcpy(bd->modalias, "mv88e6085");
-        bd->platform_data = d;
+        orion_ge00_switch_board_info.mdio_addr = d->sw_addr;
+        orion_ge00_switch_board_info.platform_data = d;
 
         mdiobus_register_board_info(&orion_ge00_switch_board_info, 1);
 }
diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index a80632641b39..70c776ef7aa7 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -165,14 +165,14 @@
 
                         uart_A: serial@24000 {
                                 compatible = "amlogic,meson-gx-uart", "amlogic,meson-uart";
-                                reg = <0x0 0x24000 0x0 0x14>;
+                                reg = <0x0 0x24000 0x0 0x18>;
                                 interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
                                 status = "disabled";
                         };
 
                         uart_B: serial@23000 {
                                 compatible = "amlogic,meson-gx-uart", "amlogic,meson-uart";
-                                reg = <0x0 0x23000 0x0 0x14>;
+                                reg = <0x0 0x23000 0x0 0x18>;
                                 interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
                                 status = "disabled";
                         };
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 6cb3c2a52baf..4ee2e7951482 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -235,14 +235,14 @@
 
                         uart_A: serial@84c0 {
                                 compatible = "amlogic,meson-gx-uart";
-                                reg = <0x0 0x84c0 0x0 0x14>;
+                                reg = <0x0 0x84c0 0x0 0x18>;
                                 interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
                                 status = "disabled";
                         };
 
                         uart_B: serial@84dc {
                                 compatible = "amlogic,meson-gx-uart";
-                                reg = <0x0 0x84dc 0x0 0x14>;
+                                reg = <0x0 0x84dc 0x0 0x18>;
                                 interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
                                 status = "disabled";
                         };
@@ -287,7 +287,7 @@
 
                         uart_C: serial@8700 {
                                 compatible = "amlogic,meson-gx-uart";
-                                reg = <0x0 0x8700 0x0 0x14>;
+                                reg = <0x0 0x8700 0x0 0x18>;
                                 interrupts = <GIC_SPI 93 IRQ_TYPE_EDGE_RISING>;
                                 status = "disabled";
                         };
@@ -404,14 +404,14 @@
 
                         uart_AO: serial@4c0 {
                                 compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart";
-                                reg = <0x0 0x004c0 0x0 0x14>;
+                                reg = <0x0 0x004c0 0x0 0x18>;
                                 interrupts = <GIC_SPI 193 IRQ_TYPE_EDGE_RISING>;
                                 status = "disabled";
                         };
 
                         uart_AO_B: serial@4e0 {
                                 compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart";
-                                reg = <0x0 0x004e0 0x0 0x14>;
+                                reg = <0x0 0x004e0 0x0 0x18>;
                                 interrupts = <GIC_SPI 197 IRQ_TYPE_EDGE_RISING>;
                                 status = "disabled";
                         };
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
index 4f355f17eed6..c8514110b9da 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
@@ -631,6 +631,7 @@
 
                         internal_phy: ethernet-phy@8 {
                                 compatible = "ethernet-phy-id0181.4400", "ethernet-phy-ieee802.3-c22";
+                                interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
                                 reg = <8>;
                                 max-speed = <100>;
                         };
diff --git a/arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi b/arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi
index 4220fbdcb24a..ff5c4c47b22b 100644
--- a/arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi
+++ b/arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi
@@ -98,7 +98,7 @@
                 clock-output-names = "clk125mhz";
         };
 
-        pci {
+        pcie@30000000 {
                 compatible = "pci-host-ecam-generic";
                 device_type = "pci";
                 #interrupt-cells = <1>;
@@ -118,6 +118,7 @@
                 ranges =
                   <0x02000000    0 0x40000000    0 0x40000000    0 0x20000000
                    0x43000000 0x40 0x00000000 0x40 0x00000000 0x20 0x00000000>;
+                bus-range = <0 0xff>;
                 interrupt-map-mask = <0 0 0 7>;
                 interrupt-map =
                       /* addr  pin  ic   icaddr  icintr */
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index e94fa1a53192..047641fe294c 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
@@ -51,7 +51,7 @@
                 #size-cells = <2>;
                 ranges;
 
-                ramoops@0x21f00000 {
+                ramoops@21f00000 {
                         compatible = "ramoops";
                         reg = <0x0 0x21f00000 0x0 0x00100000>;
                         record-size     = <0x00020000>;
diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index 9fbe4705ee88..94597e33c806 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -341,7 +341,7 @@
                         reg = <0 0x10005000 0 0x1000>;
                 };
 
-                pio: pinctrl@0x10005000 {
+                pio: pinctrl@10005000 {
                         compatible = "mediatek,mt8173-pinctrl";
                         reg = <0 0x1000b000 0 0x1000>;
                         mediatek,pctl-regmap = <&syscfg_pctl_a>;
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index 492a011f14f6..1c8f1b86472d 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -140,16 +140,16 @@
                 };
 
                 agnoc@0 {
-                        qcom,pcie@00600000 {
+                        qcom,pcie@600000 {
                                 perst-gpio = <&msmgpio 35 GPIO_ACTIVE_LOW>;
                         };
 
-                        qcom,pcie@00608000 {
+                        qcom,pcie@608000 {
                                 status = "okay";
                                 perst-gpio = <&msmgpio 130 GPIO_ACTIVE_LOW>;
                         };
 
-                        qcom,pcie@00610000 {
+                        qcom,pcie@610000 {
                                 status = "okay";
                                 perst-gpio = <&msmgpio 114 GPIO_ACTIVE_LOW>;
                         };
diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 4b2afcc4fdf4..0a6f7952bbb1 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -840,7 +840,7 @@
                         #size-cells = <1>;
                         ranges;
 
-                        pcie0: qcom,pcie@00600000 {
+                        pcie0: qcom,pcie@600000 {
                                 compatible = "qcom,pcie-msm8996", "snps,dw-pcie";
                                 status = "disabled";
                                 power-domains = <&gcc PCIE0_GDSC>;
@@ -893,7 +893,7 @@
 
                         };
 
-                        pcie1: qcom,pcie@00608000 {
+                        pcie1: qcom,pcie@608000 {
                                 compatible = "qcom,pcie-msm8996", "snps,dw-pcie";
                                 power-domains = <&gcc PCIE1_GDSC>;
                                 bus-range = <0x00 0xff>;
@@ -946,7 +946,7 @@
                                                 "bus_slave";
                         };
 
-                        pcie2: qcom,pcie@00610000 {
+                        pcie2: qcom,pcie@610000 {
                                 compatible = "qcom,pcie-msm8996", "snps,dw-pcie";
                                 power-domains = <&gcc PCIE2_GDSC>;
                                 bus-range = <0x00 0xff>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
index 3890468678ce..28257724a56e 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
@@ -132,17 +132,16 @@
         assigned-clocks = <&cru SCLK_MAC2IO>, <&cru SCLK_MAC2IO_EXT>;
         assigned-clock-parents = <&gmac_clkin>, <&gmac_clkin>;
         clock_in_out = "input";
-        /* shows instability at 1GBit right now */
-        max-speed = <100>;
         phy-supply = <&vcc_io>;
         phy-mode = "rgmii";
         pinctrl-names = "default";
         pinctrl-0 = <&rgmiim1_pins>;
+        snps,force_thresh_dma_mode;
         snps,reset-gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>;
         snps,reset-active-low;
         snps,reset-delays-us = <0 10000 50000>;
-        tx_delay = <0x26>;
-        rx_delay = <0x11>;
+        tx_delay = <0x24>;
+        rx_delay = <0x18>;
         status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index a037ee56fead..cae341554486 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -730,7 +730,7 @@
                 interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
                 clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>,
                          <&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>;
-                clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+                clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
                 fifo-depth = <0x100>;
                 status = "disabled";
         };
@@ -741,7 +741,7 @@
                 interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
                 clocks = <&cru HCLK_SDIO>, <&cru SCLK_SDIO>,
                          <&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
-                clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+                clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
                 fifo-depth = <0x100>;
                 status = "disabled";
         };
@@ -752,7 +752,7 @@
                 interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
                 clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
                          <&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
-                clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+                clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
                 fifo-depth = <0x100>;
                 status = "disabled";
         };
diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
index aa4d07046a7b..03458ac44201 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
@@ -257,7 +257,7 @@
                 max-frequency = <150000000>;
                 clocks = <&cru HCLK_SDIO0>, <&cru SCLK_SDIO0>,
                          <&cru SCLK_SDIO0_DRV>, <&cru SCLK_SDIO0_SAMPLE>;
-                clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+                clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
                 fifo-depth = <0x100>;
                 interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
                 resets = <&cru SRST_SDIO0>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
index 0f873c897d0d..ce592a4c0c4c 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
@@ -457,7 +457,7 @@
         assigned-clocks = <&cru SCLK_PCIEPHY_REF>;
         assigned-clock-parents = <&cru SCLK_PCIEPHY_REF100M>;
         assigned-clock-rates = <100000000>;
-        ep-gpios = <&gpio3 RK_PB5 GPIO_ACTIVE_HIGH>;
+        ep-gpios = <&gpio2 RK_PA4 GPIO_ACTIVE_HIGH>;
         num-lanes = <4>;
         pinctrl-names = "default";
         pinctrl-0 = <&pcie_clkreqn_cpm>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 7aa2144e0d47..2605118d4b4c 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1739,8 +1739,8 @@
                 compatible = "rockchip,rk3399-edp";
                 reg = <0x0 0xff970000 0x0 0x8000>;
                 interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH 0>;
-                clocks = <&cru PCLK_EDP>, <&cru PCLK_EDP_CTRL>;
-                clock-names = "dp", "pclk";
+                clocks = <&cru PCLK_EDP>, <&cru PCLK_EDP_CTRL>, <&cru PCLK_VIO_GRF>;
+                clock-names = "dp", "pclk", "grf";
                 pinctrl-names = "default";
                 pinctrl-0 = <&edp_hpd>;
                 power-domains = <&power RK3399_PD_EDP>;
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index be7bd19c87ec..350c76a1d15b 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -20,7 +20,7 @@
 
 #define MPIDR_UP_BITMASK        (0x1 << 30)
 #define MPIDR_MT_BITMASK        (0x1 << 24)
-#define MPIDR_HWID_BITMASK      0xff00ffffff
+#define MPIDR_HWID_BITMASK      UL(0xff00ffffff)
 
 #define MPIDR_LEVEL_BITS_SHIFT  3
 #define MPIDR_LEVEL_BITS        (1 << MPIDR_LEVEL_BITS_SHIFT)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 1dca41bea16a..e73f68569624 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -22,7 +22,7 @@
 
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
-        return *ptep;
+        return READ_ONCE(*ptep);
 }
 
 
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 9679067a1574..7faed6e48b46 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -185,42 +185,42 @@ static inline pmd_t kvm_s2pmd_mkexec(pmd_t pmd)
         return pmd;
 }
 
-static inline void kvm_set_s2pte_readonly(pte_t *pte)
+static inline void kvm_set_s2pte_readonly(pte_t *ptep)
 {
         pteval_t old_pteval, pteval;
 
-        pteval = READ_ONCE(pte_val(*pte));
+        pteval = READ_ONCE(pte_val(*ptep));
         do {
                 old_pteval = pteval;
                 pteval &= ~PTE_S2_RDWR;
                 pteval |= PTE_S2_RDONLY;
-                pteval = cmpxchg_relaxed(&pte_val(*pte), old_pteval, pteval);
+                pteval = cmpxchg_relaxed(&pte_val(*ptep), old_pteval, pteval);
         } while (pteval != old_pteval);
 }
 
-static inline bool kvm_s2pte_readonly(pte_t *pte)
+static inline bool kvm_s2pte_readonly(pte_t *ptep)
 {
-        return (pte_val(*pte) & PTE_S2_RDWR) == PTE_S2_RDONLY;
+        return (READ_ONCE(pte_val(*ptep)) & PTE_S2_RDWR) == PTE_S2_RDONLY;
 }
 
-static inline bool kvm_s2pte_exec(pte_t *pte)
+static inline bool kvm_s2pte_exec(pte_t *ptep)
 {
-        return !(pte_val(*pte) & PTE_S2_XN);
+        return !(READ_ONCE(pte_val(*ptep)) & PTE_S2_XN);
 }
 
-static inline void kvm_set_s2pmd_readonly(pmd_t *pmd)
+static inline void kvm_set_s2pmd_readonly(pmd_t *pmdp)
 {
-        kvm_set_s2pte_readonly((pte_t *)pmd);
+        kvm_set_s2pte_readonly((pte_t *)pmdp);
 }
 
-static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
+static inline bool kvm_s2pmd_readonly(pmd_t *pmdp)
 {
-        return kvm_s2pte_readonly((pte_t *)pmd);
+        return kvm_s2pte_readonly((pte_t *)pmdp);
 }
 
-static inline bool kvm_s2pmd_exec(pmd_t *pmd)
+static inline bool kvm_s2pmd_exec(pmd_t *pmdp)
 {
-        return !(pmd_val(*pmd) & PMD_S2_XN);
+        return !(READ_ONCE(pmd_val(*pmdp)) & PMD_S2_XN);
 }
 
 static inline bool kvm_page_empty(void *ptr)
diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index 8d3331985d2e..39ec0b8a689e 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -141,13 +141,13 @@ static inline void cpu_install_idmap(void)
  * Atomically replaces the active TTBR1_EL1 PGD with a new VA-compatible PGD,
  * avoiding the possibility of conflicting TLB entries being allocated.
  */
-static inline void cpu_replace_ttbr1(pgd_t *pgd)
+static inline void cpu_replace_ttbr1(pgd_t *pgdp)
 {
         typedef void (ttbr_replace_func)(phys_addr_t);
         extern ttbr_replace_func idmap_cpu_replace_ttbr1;
         ttbr_replace_func *replace_phys;
 
-        phys_addr_t pgd_phys = virt_to_phys(pgd);
+        phys_addr_t pgd_phys = virt_to_phys(pgdp);
 
         replace_phys = (void *)__pa_symbol(idmap_cpu_replace_ttbr1);
 
diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
index e9d9f1b006ef..2e05bcd944c8 100644
--- a/arch/arm64/include/asm/pgalloc.h
+++ b/arch/arm64/include/asm/pgalloc.h
@@ -36,23 +36,23 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
         return (pmd_t *)__get_free_page(PGALLOC_GFP);
 }
 
-static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
+static inline void pmd_free(struct mm_struct *mm, pmd_t *pmdp)
 {
-        BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
-        free_page((unsigned long)pmd);
+        BUG_ON((unsigned long)pmdp & (PAGE_SIZE-1));
+        free_page((unsigned long)pmdp);
 }
 
-static inline void __pud_populate(pud_t *pud, phys_addr_t pmd, pudval_t prot)
+static inline void __pud_populate(pud_t *pudp, phys_addr_t pmdp, pudval_t prot)
 {
-        set_pud(pud, __pud(__phys_to_pud_val(pmd) | prot));
+        set_pud(pudp, __pud(__phys_to_pud_val(pmdp) | prot));
 }
 
-static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+static inline void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmdp)
 {
-        __pud_populate(pud, __pa(pmd), PMD_TYPE_TABLE);
+        __pud_populate(pudp, __pa(pmdp), PMD_TYPE_TABLE);
 }
 #else
-static inline void __pud_populate(pud_t *pud, phys_addr_t pmd, pudval_t prot)
+static inline void __pud_populate(pud_t *pudp, phys_addr_t pmdp, pudval_t prot)
 {
         BUILD_BUG();
 }
@@ -65,30 +65,30 @@ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
         return (pud_t *)__get_free_page(PGALLOC_GFP);
 }
 
-static inline void pud_free(struct mm_struct *mm, pud_t *pud)
+static inline void pud_free(struct mm_struct *mm, pud_t *pudp)
 {
-        BUG_ON((unsigned long)pud & (PAGE_SIZE-1));
-        free_page((unsigned long)pud);
+        BUG_ON((unsigned long)pudp & (PAGE_SIZE-1));
+        free_page((unsigned long)pudp);
 }
 
-static inline void __pgd_populate(pgd_t *pgdp, phys_addr_t pud, pgdval_t prot)
+static inline void __pgd_populate(pgd_t *pgdp, phys_addr_t pudp, pgdval_t prot)
 {
-        set_pgd(pgdp, __pgd(__phys_to_pgd_val(pud) | prot));
+        set_pgd(pgdp, __pgd(__phys_to_pgd_val(pudp) | prot));
 }
 
-static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
+static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgdp, pud_t *pudp)
 {
-        __pgd_populate(pgd, __pa(pud), PUD_TYPE_TABLE);
+        __pgd_populate(pgdp, __pa(pudp), PUD_TYPE_TABLE);
 }
 #else
-static inline void __pgd_populate(pgd_t *pgdp, phys_addr_t pud, pgdval_t prot)
+static inline void __pgd_populate(pgd_t *pgdp, phys_addr_t pudp, pgdval_t prot)
 {
         BUILD_BUG();
 }
 #endif  /* CONFIG_PGTABLE_LEVELS > 3 */
 
 extern pgd_t *pgd_alloc(struct mm_struct *mm);
-extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
+extern void pgd_free(struct mm_struct *mm, pgd_t *pgdp);
 
 static inline pte_t *
 pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
@@ -114,10 +114,10 @@ pte_alloc_one(struct mm_struct *mm, unsigned long addr)
 /*
  * Free a PTE table.
  */
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
+static inline void pte_free_kernel(struct mm_struct *mm, pte_t *ptep)
 {
-        if (pte)
-                free_page((unsigned long)pte);
+        if (ptep)
+                free_page((unsigned long)ptep);
 }
 
 static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
@@ -126,10 +126,10 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
         __free_page(pte);
 }
 
-static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,
+static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t ptep,
                                   pmdval_t prot)
 {
-        set_pmd(pmdp, __pmd(__phys_to_pmd_val(pte) | prot));
+        set_pmd(pmdp, __pmd(__phys_to_pmd_val(ptep) | prot));
 }
 
 /*
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 094374c82db0..7e2c27e63cd8 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -218,7 +218,7 @@ static inline pmd_t pmd_mkcont(pmd_t pmd)
 
 static inline void set_pte(pte_t *ptep, pte_t pte)
 {
-        *ptep = pte;
+        WRITE_ONCE(*ptep, pte);
 
         /*
          * Only if the new pte is valid and kernel, otherwise TLB maintenance
@@ -250,6 +250,8 @@ extern void __sync_icache_dcache(pte_t pteval, unsigned long addr);
 static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
                               pte_t *ptep, pte_t pte)
 {
+        pte_t old_pte;
+
         if (pte_present(pte) && pte_user_exec(pte) && !pte_special(pte))
                 __sync_icache_dcache(pte, addr);
 
@@ -258,14 +260,15 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
          * hardware updates of the pte (ptep_set_access_flags safely changes
          * valid ptes without going through an invalid entry).
          */
-        if (IS_ENABLED(CONFIG_DEBUG_VM) && pte_valid(*ptep) && pte_valid(pte) &&
+        old_pte = READ_ONCE(*ptep);
+        if (IS_ENABLED(CONFIG_DEBUG_VM) && pte_valid(old_pte) && pte_valid(pte) &&
            (mm == current->active_mm || atomic_read(&mm->mm_users) > 1)) {
                 VM_WARN_ONCE(!pte_young(pte),
                              "%s: racy access flag clearing: 0x%016llx -> 0x%016llx",
-                             __func__, pte_val(*ptep), pte_val(pte));
-                VM_WARN_ONCE(pte_write(*ptep) && !pte_dirty(pte),
+                             __func__, pte_val(old_pte), pte_val(pte));
+                VM_WARN_ONCE(pte_write(old_pte) && !pte_dirty(pte),
                              "%s: racy dirty state clearing: 0x%016llx -> 0x%016llx",
-                             __func__, pte_val(*ptep), pte_val(pte));
+                             __func__, pte_val(old_pte), pte_val(pte));
         }
 
         set_pte(ptep, pte);
@@ -431,7 +434,7 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
 
 static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
 {
-        *pmdp = pmd;
+        WRITE_ONCE(*pmdp, pmd);
         dsb(ishst);
         isb();
 }
@@ -482,7 +485,7 @@ static inline phys_addr_t pmd_page_paddr(pmd_t pmd)
 
 static inline void set_pud(pud_t *pudp, pud_t pud)
 {
-        *pudp = pud;
+        WRITE_ONCE(*pudp, pud);
         dsb(ishst);
         isb();
 }
@@ -500,7 +503,7 @@ static inline phys_addr_t pud_page_paddr(pud_t pud)
 /* Find an entry in the second-level page table. */
 #define pmd_index(addr)         (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
 
-#define pmd_offset_phys(dir, addr)      (pud_page_paddr(*(dir)) + pmd_index(addr) * sizeof(pmd_t))
+#define pmd_offset_phys(dir, addr)      (pud_page_paddr(READ_ONCE(*(dir))) + pmd_index(addr) * sizeof(pmd_t))
 #define pmd_offset(dir, addr)           ((pmd_t *)__va(pmd_offset_phys((dir), (addr))))
 
 #define pmd_set_fixmap(addr)            ((pmd_t *)set_fixmap_offset(FIX_PMD, addr))
@@ -535,7 +538,7 @@ static inline phys_addr_t pud_page_paddr(pud_t pud)
 
 static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
 {
-        *pgdp = pgd;
+        WRITE_ONCE(*pgdp, pgd);
         dsb(ishst);
 }
 
@@ -552,7 +555,7 @@ static inline phys_addr_t pgd_page_paddr(pgd_t pgd)
 /* Find an entry in the frst-level page table. */
 #define pud_index(addr)         (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))
 
-#define pud_offset_phys(dir, addr)      (pgd_page_paddr(*(dir)) + pud_index(addr) * sizeof(pud_t))
+#define pud_offset_phys(dir, addr)      (pgd_page_paddr(READ_ONCE(*(dir))) + pud_index(addr) * sizeof(pud_t))
 #define pud_offset(dir, addr)           ((pud_t *)__va(pud_offset_phys((dir), (addr))))
 
 #define pud_set_fixmap(addr)            ((pud_t *)set_fixmap_offset(FIX_PUD, addr))
diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h
index 472ef944e932..902f9edacbea 100644
--- a/arch/arm64/include/asm/stacktrace.h
+++ b/arch/arm64/include/asm/stacktrace.h
@@ -28,7 +28,7 @@ struct stackframe {
         unsigned long fp;
         unsigned long pc;
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-        unsigned int graph;
+        int graph;
 #endif
 };
 
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 543e11f0f657..e66b0fca99c2 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -72,15 +72,15 @@ static inline void set_fs(mm_segment_t fs)
  * This is equivalent to the following test:
  * (u65)addr + (u65)size <= (u65)current->addr_limit + 1
  */
-static inline unsigned long __range_ok(unsigned long addr, unsigned long size)
+static inline unsigned long __range_ok(const void __user *addr, unsigned long size)
 {
-        unsigned long limit = current_thread_info()->addr_limit;
+        unsigned long ret, limit = current_thread_info()->addr_limit;
 
         __chk_user_ptr(addr);
         asm volatile(
         // A + B <= C + 1 for all A,B,C, in four easy steps:
         // 1: X = A + B; X' = X % 2^64
-        "       adds    %0, %0, %2\n"
+        "       adds    %0, %3, %2\n"
         // 2: Set C = 0 if X > 2^64, to guarantee X' > C in step 4
         "       csel    %1, xzr, %1, hi\n"
         // 3: Set X' = ~0 if X >= 2^64. For X == 2^64, this decrements X'
@@ -92,9 +92,9 @@ static inline unsigned long __range_ok(unsigned long addr, unsigned long size)
         //    testing X' - C == 0, subject to the previous adjustments.
         "       sbcs    xzr, %0, %1\n"
         "       cset    %0, ls\n"
-        : "+r" (addr), "+r" (limit) : "Ir" (size) : "cc");
+        : "=&r" (ret), "+r" (limit) : "Ir" (size), "0" (addr) : "cc");
 
-        return addr;
+        return ret;
 }
 
 /*
@@ -104,7 +104,7 @@ static inline unsigned long __range_ok(unsigned long addr, unsigned long size)
  */
 #define untagged_addr(addr)             sign_extend64(addr, 55)
 
-#define access_ok(type, addr, size)     __range_ok((unsigned long)(addr), size)
+#define access_ok(type, addr, size)     __range_ok(addr, size)
 #define user_addr_max                   get_fs
 
 #define _ASM_EXTABLE(from, to)                                          \
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c
index c33b5e4010ab..68450e954d47 100644
--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -370,6 +370,7 @@ static unsigned int __kprobes aarch32_check_condition(u32 opcode, u32 psr)
 static int swp_handler(struct pt_regs *regs, u32 instr)
 {
         u32 destreg, data, type, address = 0;
+        const void __user *user_ptr;
         int rn, rt2, res = 0;
 
         perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, regs, regs->pc);
@@ -401,7 +402,8 @@ static int swp_handler(struct pt_regs *regs, u32 instr)
                 aarch32_insn_extract_reg_num(instr, A32_RT2_OFFSET), data);
 
         /* Check access in reasonable access range for both SWP and SWPB */
-        if (!access_ok(VERIFY_WRITE, (address & ~3), 4)) {
+        user_ptr = (const void __user *)(unsigned long)(address & ~3);
+        if (!access_ok(VERIFY_WRITE, user_ptr, 4)) {
                 pr_debug("SWP{B} emulation: access to 0x%08x not allowed!\n",
                         address);
                 goto fault;
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 07823595b7f0..b5a28336c077 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -178,7 +178,7 @@ static int enable_smccc_arch_workaround_1(void *data)
         case PSCI_CONDUIT_HVC:
                 arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
                                   ARM_SMCCC_ARCH_WORKAROUND_1, &res);
-                if (res.a0)
+                if ((int)res.a0 < 0)
                         return 0;
                 cb = call_hvc_arch_workaround_1;
                 smccc_start = __smccc_workaround_1_hvc_start;
@@ -188,7 +188,7 @@ static int enable_smccc_arch_workaround_1(void *data)
         case PSCI_CONDUIT_SMC:
                 arm_smccc_1_1_smc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
                                   ARM_SMCCC_ARCH_WORKAROUND_1, &res);
-                if (res.a0)
+                if ((int)res.a0 < 0)
                         return 0;
                 cb = call_smc_arch_workaround_1;
                 smccc_start = __smccc_workaround_1_smc_start;
@@ -408,6 +408,15 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
         },
         {
                 .capability = ARM64_HARDEN_BRANCH_PREDICTOR,
+                MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR),
+                .enable = qcom_enable_link_stack_sanitization,
+        },
+        {
+                .capability = ARM64_HARDEN_BP_POST_GUEST_EXIT,
+                MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR),
+        },
+        {
+                .capability = ARM64_HARDEN_BRANCH_PREDICTOR,
                 MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN),
                 .enable = enable_smccc_arch_workaround_1,
         },
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 29b1f873e337..2985a067fc13 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -199,9 +199,11 @@ static const struct arm64_ftr_bits ftr_id_aa64mmfr2[] = {
 };
 
 static const struct arm64_ftr_bits ftr_ctr[] = {
-        ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, 31, 1, 1),   /* RAO */
+        ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, 31, 1, 1),           /* RES1 */
+        ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, 29, 1, 1),      /* DIC */
+        ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, 28, 1, 1),      /* IDC */
         ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_HIGHER_SAFE, 24, 4, 0),     /* CWG */
-        ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, 20, 4, 0),      /* ERG */
+        ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_HIGHER_SAFE, 20, 4, 0),     /* ERG */
         ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, 16, 4, 1),      /* DminLine */
         /*
          * Linux can handle differing I-cache policies. Userspace JITs will
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c
index f85ac58d08a3..a8bf1c892b90 100644
--- a/arch/arm64/kernel/efi.c
+++ b/arch/arm64/kernel/efi.c
@@ -90,7 +90,7 @@ static int __init set_permissions(pte_t *ptep, pgtable_t token,
                                   unsigned long addr, void *data)
 {
         efi_memory_desc_t *md = data;
-        pte_t pte = *ptep;
+        pte_t pte = READ_ONCE(*ptep);
 
         if (md->attribute & EFI_MEMORY_RO)
                 pte = set_pte_bit(pte, __pgprot(PTE_RDONLY));
diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c
index f20cf7e99249..1ec5f28c39fc 100644
--- a/arch/arm64/kernel/hibernate.c
+++ b/arch/arm64/kernel/hibernate.c
@@ -202,10 +202,10 @@ static int create_safe_exec_page(void *src_start, size_t length,
                                  gfp_t mask)
 {
         int rc = 0;
-        pgd_t *pgd;
-        pud_t *pud;
-        pmd_t *pmd;
-        pte_t *pte;
+        pgd_t *pgdp;
+        pud_t *pudp;
+        pmd_t *pmdp;
+        pte_t *ptep;
         unsigned long dst = (unsigned long)allocator(mask);
 
         if (!dst) {
@@ -216,38 +216,38 @@ static int create_safe_exec_page(void *src_start, size_t length,
         memcpy((void *)dst, src_start, length);
         flush_icache_range(dst, dst + length);
 
-        pgd = pgd_offset_raw(allocator(mask), dst_addr);
-        if (pgd_none(*pgd)) {
-                pud = allocator(mask);
-                if (!pud) {
+        pgdp = pgd_offset_raw(allocator(mask), dst_addr);
+        if (pgd_none(READ_ONCE(*pgdp))) {
+                pudp = allocator(mask);
+                if (!pudp) {
                         rc = -ENOMEM;
                         goto out;
                 }
-                pgd_populate(&init_mm, pgd, pud);
+                pgd_populate(&init_mm, pgdp, pudp);
         }
 
-        pud = pud_offset(pgd, dst_addr);
-        if (pud_none(*pud)) {
-                pmd = allocator(mask);
-                if (!pmd) {
+        pudp = pud_offset(pgdp, dst_addr);
+        if (pud_none(READ_ONCE(*pudp))) {
+                pmdp = allocator(mask);
+                if (!pmdp) {
                         rc = -ENOMEM;
                         goto out;
                 }
-                pud_populate(&init_mm, pud, pmd);
+                pud_populate(&init_mm, pudp, pmdp);
         }
 
-        pmd = pmd_offset(pud, dst_addr);
-        if (pmd_none(*pmd)) {
-                pte = allocator(mask);
-                if (!pte) {
+        pmdp = pmd_offset(pudp, dst_addr);
+        if (pmd_none(READ_ONCE(*pmdp))) {
+                ptep = allocator(mask);
+                if (!ptep) {
                         rc = -ENOMEM;
                         goto out;
                 }
-                pmd_populate_kernel(&init_mm, pmd, pte);
+                pmd_populate_kernel(&init_mm, pmdp, ptep);
         }
 
-        pte = pte_offset_kernel(pmd, dst_addr);
-        set_pte(pte, pfn_pte(virt_to_pfn(dst), PAGE_KERNEL_EXEC));
+        ptep = pte_offset_kernel(pmdp, dst_addr);
+        set_pte(ptep, pfn_pte(virt_to_pfn(dst), PAGE_KERNEL_EXEC));
 
         /*
          * Load our new page tables. A strict BBM approach requires that we
@@ -263,7 +263,7 @@ static int create_safe_exec_page(void *src_start, size_t length,
          */
         cpu_set_reserved_ttbr0();
         local_flush_tlb_all();
-        write_sysreg(phys_to_ttbr(virt_to_phys(pgd)), ttbr0_el1);
+        write_sysreg(phys_to_ttbr(virt_to_phys(pgdp)), ttbr0_el1);
         isb();
 
         *phys_dst_addr = virt_to_phys((void *)dst);
@@ -320,9 +320,9 @@ int swsusp_arch_suspend(void)
         return ret;
 }
 
-static void _copy_pte(pte_t *dst_pte, pte_t *src_pte, unsigned long addr)
+static void _copy_pte(pte_t *dst_ptep, pte_t *src_ptep, unsigned long addr)
 {
-        pte_t pte = *src_pte;
+        pte_t pte = READ_ONCE(*src_ptep);
 
         if (pte_valid(pte)) {
                 /*
@@ -330,7 +330,7 @@ static void _copy_pte(pte_t *dst_pte, pte_t *src_pte, unsigned long addr)
                  * read only (code, rodata). Clear the RDONLY bit from
                  * the temporary mappings we use during restore.
                  */
-                set_pte(dst_pte, pte_mkwrite(pte));
+                set_pte(dst_ptep, pte_mkwrite(pte));
         } else if (debug_pagealloc_enabled() && !pte_none(pte)) {
                 /*
                  * debug_pagealloc will removed the PTE_VALID bit if
@@ -343,112 +343,116 @@ static void _copy_pte(pte_t *dst_pte, pte_t *src_pte, unsigned long addr)
                  */
                 BUG_ON(!pfn_valid(pte_pfn(pte)));
 
-                set_pte(dst_pte, pte_mkpresent(pte_mkwrite(pte)));
+                set_pte(dst_ptep, pte_mkpresent(pte_mkwrite(pte)));
         }
 }
 
-static int copy_pte(pmd_t *dst_pmd, pmd_t *src_pmd, unsigned long start,
+static int copy_pte(pmd_t *dst_pmdp, pmd_t *src_pmdp, unsigned long start,
                     unsigned long end)
 {
-        pte_t *src_pte;
-        pte_t *dst_pte;
+        pte_t *src_ptep;
+        pte_t *dst_ptep;
         unsigned long addr = start;
 
-        dst_pte = (pte_t *)get_safe_page(GFP_ATOMIC);
-        if (!dst_pte)
+        dst_ptep = (pte_t *)get_safe_page(GFP_ATOMIC);
+        if (!dst_ptep)
                 return -ENOMEM;
-        pmd_populate_kernel(&init_mm, dst_pmd, dst_pte);
-        dst_pte = pte_offset_kernel(dst_pmd, start);
+        pmd_populate_kernel(&init_mm, dst_pmdp, dst_ptep);
+        dst_ptep = pte_offset_kernel(dst_pmdp, start);
 
-        src_pte = pte_offset_kernel(src_pmd, start);
+        src_ptep = pte_offset_kernel(src_pmdp, start);
         do {
-                _copy_pte(dst_pte, src_pte, addr);
-        } while (dst_pte++, src_pte++, addr += PAGE_SIZE, addr != end);
+                _copy_pte(dst_ptep, src_ptep, addr);
+        } while (dst_ptep++, src_ptep++, addr += PAGE_SIZE, addr != end);
 
         return 0;
 }
 
-static int copy_pmd(pud_t *dst_pud, pud_t *src_pud, unsigned long start,
+static int copy_pmd(pud_t *dst_pudp, pud_t *src_pudp, unsigned long start,
                     unsigned long end)
 {
-        pmd_t *src_pmd;
-        pmd_t *dst_pmd;
+        pmd_t *src_pmdp;
+        pmd_t *dst_pmdp;
         unsigned long next;
         unsigned long addr = start;
 
-        if (pud_none(*dst_pud)) {
-                dst_pmd = (pmd_t *)get_safe_page(GFP_ATOMIC);
-                if (!dst_pmd)
+        if (pud_none(READ_ONCE(*dst_pudp))) {
+                dst_pmdp = (pmd_t *)get_safe_page(GFP_ATOMIC);
+                if (!dst_pmdp)
                         return -ENOMEM;
-                pud_populate(&init_mm, dst_pud, dst_pmd);
+                pud_populate(&init_mm, dst_pudp, dst_pmdp);
         }
-        dst_pmd = pmd_offset(dst_pud, start);
+        dst_pmdp = pmd_offset(dst_pudp, start);
 
-        src_pmd = pmd_offset(src_pud, start);
+        src_pmdp = pmd_offset(src_pudp, start);
         do {
+                pmd_t pmd = READ_ONCE(*src_pmdp);
+
                 next = pmd_addr_end(addr, end);
-                if (pmd_none(*src_pmd))
+                if (pmd_none(pmd))
                         continue;
-                if (pmd_table(*src_pmd)) {
-                        if (copy_pte(dst_pmd, src_pmd, addr, next))
+                if (pmd_table(pmd)) {
+                        if (copy_pte(dst_pmdp, src_pmdp, addr, next))
                                 return -ENOMEM;
                 } else {
-                        set_pmd(dst_pmd,
-                                __pmd(pmd_val(*src_pmd) & ~PMD_SECT_RDONLY));
+                        set_pmd(dst_pmdp,
+                                __pmd(pmd_val(pmd) & ~PMD_SECT_RDONLY));
                 }
-        } while (dst_pmd++, src_pmd++, addr = next, addr != end);
+        } while (dst_pmdp++, src_pmdp++, addr = next, addr != end);
 
         return 0;
 }
 
-static int copy_pud(pgd_t *dst_pgd, pgd_t *src_pgd, unsigned long start,
+static int copy_pud(pgd_t *dst_pgdp, pgd_t *src_pgdp, unsigned long start,
                     unsigned long end)
 {
-        pud_t *dst_pud;
-        pud_t *src_pud;
+        pud_t *dst_pudp;
+        pud_t *src_pudp;
         unsigned long next;
         unsigned long addr = start;
 
-        if (pgd_none(*dst_pgd)) {
-                dst_pud = (pud_t *)get_safe_page(GFP_ATOMIC);
-                if (!dst_pud)
+        if (pgd_none(READ_ONCE(*dst_pgdp))) {
+                dst_pudp = (pud_t *)get_safe_page(GFP_ATOMIC);
+                if (!dst_pudp)
                         return -ENOMEM;
-                pgd_populate(&init_mm, dst_pgd, dst_pud);
+                pgd_populate(&init_mm, dst_pgdp, dst_pudp);
         }
-        dst_pud = pud_offset(dst_pgd, start);
+        dst_pudp = pud_offset(dst_pgdp, start);
 
-        src_pud = pud_offset(src_pgd, start);
+        src_pudp = pud_offset(src_pgdp, start);
         do {
+                pud_t pud = READ_ONCE(*src_pudp);
+
                 next = pud_addr_end(addr, end);
-                if (pud_none(*src_pud))
+                if (pud_none(pud))
                         continue;
-                if (pud_table(*(src_pud))) {
-                        if (copy_pmd(dst_pud, src_pud, addr, next))
+                if (pud_table(pud)) {
+                        if (copy_pmd(dst_pudp, src_pudp, addr, next))
                                 return -ENOMEM;
                 } else {
-                        set_pud(dst_pud,
-                                __pud(pud_val(*src_pud) & ~PMD_SECT_RDONLY));
+                        set_pud(dst_pudp,
+                                __pud(pud_val(pud) & ~PMD_SECT_RDONLY));
                 }
-        } while (dst_pud++, src_pud++, addr = next, addr != end);
+        } while (dst_pudp++, src_pudp++, addr = next, addr != end);
 
         return 0;
 }
 
-static int copy_page_tables(pgd_t *dst_pgd, unsigned long start,
+static int copy_page_tables(pgd_t *dst_pgdp, unsigned long start,
                             unsigned long end)
 {
         unsigned long next;
         unsigned long addr = start;
-        pgd_t *src_pgd = pgd_offset_k(start);
+        pgd_t *src_pgdp = pgd_offset_k(start);
 
-        dst_pgd = pgd_offset_raw(dst_pgd, start);
+        dst_pgdp = pgd_offset_raw(dst_pgdp, start);
         do {
                 next = pgd_addr_end(addr, end);
-                if (pgd_none(*src_pgd))
+                if (pgd_none(READ_ONCE(*src_pgdp)))
                         continue;
-                if (copy_pud(dst_pgd, src_pgd, addr, next))
+                if (copy_pud(dst_pgdp, src_pgdp, addr, next))
                         return -ENOMEM;
-        } while (dst_pgd++, src_pgd++, addr = next, addr != end);
+        } while (dst_pgdp++, src_pgdp++, addr = next, addr != end);
 
         return 0;
 }
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 75b220ba73a3..85a251b6dfa8 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -908,9 +908,9 @@ static void __armv8pmu_probe_pmu(void *info)
         int pmuver;
 
         dfr0 = read_sysreg(id_aa64dfr0_el1);
-        pmuver = cpuid_feature_extract_signed_field(dfr0,
+        pmuver = cpuid_feature_extract_unsigned_field(dfr0,
                         ID_AA64DFR0_PMUVER_SHIFT);
-        if (pmuver < 1)
+        if (pmuver == 0xf || pmuver == 0)
                 return;
 
         probe->present = true;
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index ad8aeb098b31..c0da6efe5465 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -220,8 +220,15 @@ void __show_regs(struct pt_regs *regs)
 
         show_regs_print_info(KERN_DEFAULT);
         print_pstate(regs);
-        printk("pc : %pS\n", (void *)regs->pc);
-        printk("lr : %pS\n", (void *)lr);
+
+        if (!user_mode(regs)) {
+                printk("pc : %pS\n", (void *)regs->pc);
+                printk("lr : %pS\n", (void *)lr);
+        } else {
+                printk("pc : %016llx\n", regs->pc);
+                printk("lr : %016llx\n", lr);
+        }
+
         printk("sp : %016llx\n", sp);
 
         i = top_reg;
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 6618036ae6d4..9ae31f7e2243 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -1419,7 +1419,7 @@ static int compat_ptrace_hbp_get(unsigned int note_type,
         u64 addr = 0;
         u32 ctrl = 0;
 
-        int err, idx = compat_ptrace_hbp_num_to_idx(num);;
+        int err, idx = compat_ptrace_hbp_num_to_idx(num);
 
         if (num & 1) {
                 err = ptrace_hbp_get_addr(note_type, tsk, idx, &addr);
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index 76809ccd309c..d5718a060672 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -59,6 +59,11 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame)
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
         if (tsk->ret_stack &&
                         (frame->pc == (unsigned long)return_to_handler)) {
+                if (WARN_ON_ONCE(frame->graph == -1))
+                        return -EINVAL;
+                if (frame->graph < -1)
+                        frame->graph += FTRACE_NOTRACE_DEPTH;
+
                 /*
                  * This is a case where function graph tracer has
                  * modified a return address (LR) in a stack frame
diff --git a/arch/arm64/kernel/sys_compat.c b/arch/arm64/kernel/sys_compat.c
index 8b8bbd3eaa52..a382b2a1b84e 100644
--- a/arch/arm64/kernel/sys_compat.c
+++ b/arch/arm64/kernel/sys_compat.c
@@ -57,7 +57,7 @@ do_compat_cache_op(unsigned long start, unsigned long end, int flags)
         if (end < start || flags)
                 return -EINVAL;
 
-        if (!access_ok(VERIFY_READ, start, end - start))
+        if (!access_ok(VERIFY_READ, (const void __user *)start, end - start))
                 return -EFAULT;
 
         return __do_compat_cache_op(start, end);
diff --git a/arch/arm64/kernel/time.c b/arch/arm64/kernel/time.c
index a4391280fba9..f258636273c9 100644
--- a/arch/arm64/kernel/time.c
+++ b/arch/arm64/kernel/time.c
@@ -52,7 +52,7 @@ unsigned long profile_pc(struct pt_regs *regs)
         frame.fp = regs->regs[29];
         frame.pc = regs->pc;
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-        frame.graph = -1; /* no task info */
+        frame.graph = current->curr_ret_stack;
 #endif
         do {
                 int ret = unwind_frame(NULL, &frame);
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index bbb0fde2780e..eb2d15147e8d 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -57,7 +57,7 @@ static const char *handler[]= {
         "Error"
 };
 
-int show_unhandled_signals = 1;
+int show_unhandled_signals = 0;
 
 static void dump_backtrace_entry(unsigned long where)
 {
@@ -526,14 +526,6 @@ asmlinkage long do_ni_syscall(struct pt_regs *regs)
         }
 #endif
 
-        if (show_unhandled_signals_ratelimited()) {
-                pr_info("%s[%d]: syscall %d\n", current->comm,
-                        task_pid_nr(current), regs->syscallno);
-                dump_instr("", regs);
-                if (user_mode(regs))
-                        __show_regs(regs);
-        }
-
         return sys_ni_syscall();
 }
 
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
index d7e3299a7734..959e50d2588c 100644
--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -363,8 +363,6 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 {
         int ret = 0;
 
-        vcpu_load(vcpu);
-
         trace_kvm_set_guest_debug(vcpu, dbg->control);
 
         if (dbg->control & ~KVM_GUESTDBG_VALID_MASK) {
@@ -386,7 +384,6 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
         }
 
 out:
-        vcpu_put(vcpu);
         return ret;
 }
 
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index 116252a8d3a5..870f4b1587f9 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -407,8 +407,10 @@ again:
                 u32 midr = read_cpuid_id();
 
                 /* Apply BTAC predictors mitigation to all Falkor chips */
-                if ((midr & MIDR_CPU_MODEL_MASK) == MIDR_QCOM_FALKOR_V1)
+                if (((midr & MIDR_CPU_MODEL_MASK) == MIDR_QCOM_FALKOR) ||
+                    ((midr & MIDR_CPU_MODEL_MASK) == MIDR_QCOM_FALKOR_V1)) {
                         __qcom_hyp_sanitize_btac_predictors();
+                }
         }
 
         fp_enabled = __fpsimd_enabled();
diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c
index 7b60d62ac593..65dfc8571bf8 100644
--- a/arch/arm64/mm/dump.c
+++ b/arch/arm64/mm/dump.c
@@ -286,48 +286,52 @@ static void note_page(struct pg_state *st, unsigned long addr, unsigned level,
 
 }
 
-static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
+static void walk_pte(struct pg_state *st, pmd_t *pmdp, unsigned long start)
 {
-        pte_t *pte = pte_offset_kernel(pmd, 0UL);
+        pte_t *ptep = pte_offset_kernel(pmdp, 0UL);
         unsigned long addr;
         unsigned i;
 
-        for (i = 0; i < PTRS_PER_PTE; i++, pte++) {
+        for (i = 0; i < PTRS_PER_PTE; i++, ptep++) {
                 addr = start + i * PAGE_SIZE;
-                note_page(st, addr, 4, pte_val(*pte));
+                note_page(st, addr, 4, READ_ONCE(pte_val(*ptep)));
         }
 }
 
-static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
+static void walk_pmd(struct pg_state *st, pud_t *pudp, unsigned long start)
 {
-        pmd_t *pmd = pmd_offset(pud, 0UL);
+        pmd_t *pmdp = pmd_offset(pudp, 0UL);
         unsigned long addr;
         unsigned i;
 
-        for (i = 0; i < PTRS_PER_PMD; i++, pmd++) {
+        for (i = 0; i < PTRS_PER_PMD; i++, pmdp++) {
+                pmd_t pmd = READ_ONCE(*pmdp);
+
                 addr = start + i * PMD_SIZE;
-                if (pmd_none(*pmd) || pmd_sect(*pmd)) {
-                        note_page(st, addr, 3, pmd_val(*pmd));
+                if (pmd_none(pmd) || pmd_sect(pmd)) {
+                        note_page(st, addr, 3, pmd_val(pmd));
                 } else {
-                        BUG_ON(pmd_bad(*pmd));
-                        walk_pte(st, pmd, addr);
+                        BUG_ON(pmd_bad(pmd));
+                        walk_pte(st, pmdp, addr);
                 }
         }
 }
 
-static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start)
+static void walk_pud(struct pg_state *st, pgd_t *pgdp, unsigned long start)
 {
-        pud_t *pud = pud_offset(pgd, 0UL);
+        pud_t *pudp = pud_offset(pgdp, 0UL);
         unsigned long addr;
         unsigned i;
 
-        for (i = 0; i < PTRS_PER_PUD; i++, pud++) {
+        for (i = 0; i < PTRS_PER_PUD; i++, pudp++) {
+                pud_t pud = READ_ONCE(*pudp);
+
                 addr = start + i * PUD_SIZE;
-                if (pud_none(*pud) || pud_sect(*pud)) {
-                        note_page(st, addr, 2, pud_val(*pud));
+                if (pud_none(pud) || pud_sect(pud)) {
+                        note_page(st, addr, 2, pud_val(pud));
                 } else {
-                        BUG_ON(pud_bad(*pud));
-                        walk_pmd(st, pud, addr);
+                        BUG_ON(pud_bad(pud));
+                        walk_pmd(st, pudp, addr);
                 }
         }
 }
@@ -335,17 +339,19 @@ static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start)
 static void walk_pgd(struct pg_state *st, struct mm_struct *mm,
                      unsigned long start)
 {
-        pgd_t *pgd = pgd_offset(mm, 0UL);
+        pgd_t *pgdp = pgd_offset(mm, 0UL);
         unsigned i;
         unsigned long addr;
 
-        for (i = 0; i < PTRS_PER_PGD; i++, pgd++) {
+        for (i = 0; i < PTRS_PER_PGD; i++, pgdp++) {
+                pgd_t pgd = READ_ONCE(*pgdp);
+
                 addr = start + i * PGDIR_SIZE;
-                if (pgd_none(*pgd)) {
-                        note_page(st, addr, 1, pgd_val(*pgd));
+                if (pgd_none(pgd)) {
+                        note_page(st, addr, 1, pgd_val(pgd));
                 } else {
-                        BUG_ON(pgd_bad(*pgd));
-                        walk_pud(st, pgd, addr);
+                        BUG_ON(pgd_bad(pgd));
+                        walk_pud(st, pgdp, addr);
                 }
         }
 }
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index f76bb2c3c943..bff11553eb05 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -130,7 +130,8 @@ static void mem_abort_decode(unsigned int esr)
 void show_pte(unsigned long addr)
 {
         struct mm_struct *mm;
-        pgd_t *pgd;
+        pgd_t *pgdp;
+        pgd_t pgd;
 
         if (addr < TASK_SIZE) {
                 /* TTBR0 */
@@ -149,33 +150,37 @@ void show_pte(unsigned long addr)
                 return;
         }
 
-        pr_alert("%s pgtable: %luk pages, %u-bit VAs, pgd = %p\n",
+        pr_alert("%s pgtable: %luk pages, %u-bit VAs, pgdp = %p\n",
                  mm == &init_mm ? "swapper" : "user", PAGE_SIZE / SZ_1K,
                  VA_BITS, mm->pgd);
-        pgd = pgd_offset(mm, addr);
-        pr_alert("[%016lx] *pgd=%016llx", addr, pgd_val(*pgd));
+        pgdp = pgd_offset(mm, addr);
+        pgd = READ_ONCE(*pgdp);
+        pr_alert("[%016lx] pgd=%016llx", addr, pgd_val(pgd));
 
         do {
-                pud_t *pud;
-                pmd_t *pmd;
-                pte_t *pte;
+                pud_t *pudp, pud;
+                pmd_t *pmdp, pmd;
+                pte_t *ptep, pte;
 
-                if (pgd_none(*pgd) || pgd_bad(*pgd))
+                if (pgd_none(pgd) || pgd_bad(pgd))
                         break;
 
-                pud = pud_offset(pgd, addr);
-                pr_cont(", *pud=%016llx", pud_val(*pud));
-                if (pud_none(*pud) || pud_bad(*pud))
+                pudp = pud_offset(pgdp, addr);
+                pud = READ_ONCE(*pudp);
+                pr_cont(", pud=%016llx", pud_val(pud));
+                if (pud_none(pud) || pud_bad(pud))
                         break;
 
-                pmd = pmd_offset(pud, addr);
-                pr_cont(", *pmd=%016llx", pmd_val(*pmd));
-                if (pmd_none(*pmd) || pmd_bad(*pmd))
+                pmdp = pmd_offset(pudp, addr);
+                pmd = READ_ONCE(*pmdp);
+                pr_cont(", pmd=%016llx", pmd_val(pmd));
+                if (pmd_none(pmd) || pmd_bad(pmd))
                         break;
 
-                pte = pte_offset_map(pmd, addr);
-                pr_cont(", *pte=%016llx", pte_val(*pte));
-                pte_unmap(pte);
+                ptep = pte_offset_map(pmdp, addr);
+                pte = READ_ONCE(*ptep);
+                pr_cont(", pte=%016llx", pte_val(pte));
+                pte_unmap(ptep);
         } while(0);
 
         pr_cont("\n");
@@ -196,8 +201,9 @@ int ptep_set_access_flags(struct vm_area_struct *vma,
                           pte_t entry, int dirty)
 {
         pteval_t old_pteval, pteval;
+        pte_t pte = READ_ONCE(*ptep);
 
-        if (pte_same(*ptep, entry))
+        if (pte_same(pte, entry))
                 return 0;
 
         /* only preserve the access flags and write permission */
@@ -210,7 +216,7 @@ int ptep_set_access_flags(struct vm_area_struct *vma,
          * (calculated as: a & b == ~(~a | ~b)).
          */
         pte_val(entry) ^= PTE_RDONLY;
-        pteval = READ_ONCE(pte_val(*ptep));
+        pteval = pte_val(pte);
         do {
                 old_pteval = pteval;
                 pteval ^= PTE_RDONLY;
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 6cb0fa92a651..ecc6818191df 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -54,14 +54,14 @@ static inline pgprot_t pte_pgprot(pte_t pte)
 static int find_num_contig(struct mm_struct *mm, unsigned long addr,
                            pte_t *ptep, size_t *pgsize)
 {
-        pgd_t *pgd = pgd_offset(mm, addr);
-        pud_t *pud;
-        pmd_t *pmd;
+        pgd_t *pgdp = pgd_offset(mm, addr);
+        pud_t *pudp;
+        pmd_t *pmdp;
 
         *pgsize = PAGE_SIZE;
-        pud = pud_offset(pgd, addr);
-        pmd = pmd_offset(pud, addr);
-        if ((pte_t *)pmd == ptep) {
+        pudp = pud_offset(pgdp, addr);
+        pmdp = pmd_offset(pudp, addr);
+        if ((pte_t *)pmdp == ptep) {
                 *pgsize = PMD_SIZE;
                 return CONT_PMDS;
         }
@@ -181,11 +181,8 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 
         clear_flush(mm, addr, ptep, pgsize, ncontig);
 
-        for (i = 0; i < ncontig; i++, ptep++, addr += pgsize, pfn += dpfn) {
-                pr_debug("%s: set pte %p to 0x%llx\n", __func__, ptep,
-                         pte_val(pfn_pte(pfn, hugeprot)));
+        for (i = 0; i < ncontig; i++, ptep++, addr += pgsize, pfn += dpfn)
                 set_pte_at(mm, addr, ptep, pfn_pte(pfn, hugeprot));
-        }
 }
 
 void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
@@ -203,20 +200,20 @@ void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
 pte_t *huge_pte_alloc(struct mm_struct *mm,
                       unsigned long addr, unsigned long sz)
 {
-        pgd_t *pgd;
-        pud_t *pud;
-        pte_t *pte = NULL;
-
-        pr_debug("%s: addr:0x%lx sz:0x%lx\n", __func__, addr, sz);
-        pgd = pgd_offset(mm, addr);
-        pud = pud_alloc(mm, pgd, addr);
-        if (!pud)
+        pgd_t *pgdp;
+        pud_t *pudp;
+        pmd_t *pmdp;
+        pte_t *ptep = NULL;
+
+        pgdp = pgd_offset(mm, addr);
+        pudp = pud_alloc(mm, pgdp, addr);
+        if (!pudp)
                 return NULL;
 
         if (sz == PUD_SIZE) {
-                pte = (pte_t *)pud;
+                ptep = (pte_t *)pudp;
         } else if (sz == (PAGE_SIZE * CONT_PTES)) {
-                pmd_t *pmd = pmd_alloc(mm, pud, addr);
+                pmdp = pmd_alloc(mm, pudp, addr);
 
                 WARN_ON(addr & (sz - 1));
                 /*
@@ -226,60 +223,55 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
                  * will be no pte_unmap() to correspond with this
                  * pte_alloc_map().
                  */
-                pte = pte_alloc_map(mm, pmd, addr);
+                ptep = pte_alloc_map(mm, pmdp, addr);
         } else if (sz == PMD_SIZE) {
                 if (IS_ENABLED(CONFIG_ARCH_WANT_HUGE_PMD_SHARE) &&
-                    pud_none(*pud))
-                        pte = huge_pmd_share(mm, addr, pud);
+                    pud_none(READ_ONCE(*pudp)))
+                        ptep = huge_pmd_share(mm, addr, pudp);
                 else
-                        pte = (pte_t *)pmd_alloc(mm, pud, addr);
+                        ptep = (pte_t *)pmd_alloc(mm, pudp, addr);
         } else if (sz == (PMD_SIZE * CONT_PMDS)) {
-                pmd_t *pmd;
-
-                pmd = pmd_alloc(mm, pud, addr);
+                pmdp = pmd_alloc(mm, pudp, addr);
                 WARN_ON(addr & (sz - 1));
-                return (pte_t *)pmd;
+                return (pte_t *)pmdp;
         }
 
-        pr_debug("%s: addr:0x%lx sz:0x%lx ret pte=%p/0x%llx\n", __func__, addr,
-               sz, pte, pte_val(*pte));
-        return pte;
+        return ptep;
 }
 
 pte_t *huge_pte_offset(struct mm_struct *mm,
                        unsigned long addr, unsigned long sz)
 {
-        pgd_t *pgd;
-        pud_t *pud;
-        pmd_t *pmd;
+        pgd_t *pgdp;
+        pud_t *pudp, pud;
+        pmd_t *pmdp, pmd;
 
-        pgd = pgd_offset(mm, addr);
-        pr_debug("%s: addr:0x%lx pgd:%p\n", __func__, addr, pgd);
-        if (!pgd_present(*pgd))
+        pgdp = pgd_offset(mm, addr);
+        if (!pgd_present(READ_ONCE(*pgdp)))
                 return NULL;
 
-        pud = pud_offset(pgd, addr);
-        if (sz != PUD_SIZE && pud_none(*pud))
+        pudp = pud_offset(pgdp, addr);
+        pud = READ_ONCE(*pudp);
+        if (sz != PUD_SIZE && pud_none(pud))
                 return NULL;
         /* hugepage or swap? */
-        if (pud_huge(*pud) || !pud_present(*pud))
-                return (pte_t *)pud;
+        if (pud_huge(pud) || !pud_present(pud))
+                return (pte_t *)pudp;
         /* table; check the next level */
 
         if (sz == CONT_PMD_SIZE)
                 addr &= CONT_PMD_MASK;
 
-        pmd = pmd_offset(pud, addr);
+        pmdp = pmd_offset(pudp, addr);
+        pmd = READ_ONCE(*pmdp);
         if (!(sz == PMD_SIZE || sz == CONT_PMD_SIZE) &&
-            pmd_none(*pmd))
+            pmd_none(pmd))
                 return NULL;
-        if (pmd_huge(*pmd) || !pmd_present(*pmd))
-                return (pte_t *)pmd;
+        if (pmd_huge(pmd) || !pmd_present(pmd))
+                return (pte_t *)pmdp;
 
-        if (sz == CONT_PTE_SIZE) {
-                pte_t *pte = pte_offset_kernel(pmd, (addr & CONT_PTE_MASK));
-                return pte;
-        }
+        if (sz == CONT_PTE_SIZE)
+                return pte_offset_kernel(pmdp, (addr & CONT_PTE_MASK));
 
         return NULL;
 }
@@ -367,7 +359,7 @@ void huge_ptep_set_wrprotect(struct mm_struct *mm,
         size_t pgsize;
         pte_t pte;
 
-        if (!pte_cont(*ptep)) {
+        if (!pte_cont(READ_ONCE(*ptep))) {
                 ptep_set_wrprotect(mm, addr, ptep);
                 return;
         }
@@ -391,7 +383,7 @@ void huge_ptep_clear_flush(struct vm_area_struct *vma,
         size_t pgsize;
         int ncontig;
 
-        if (!pte_cont(*ptep)) {
+        if (!pte_cont(READ_ONCE(*ptep))) {
                 ptep_clear_flush(vma, addr, ptep);
                 return;
         }
diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 6e02e6fb4c7b..dabfc1ecda3d 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -44,92 +44,92 @@ static phys_addr_t __init kasan_alloc_zeroed_page(int node)
         return __pa(p);
 }
 
-static pte_t *__init kasan_pte_offset(pmd_t *pmd, unsigned long addr, int node,
+static pte_t *__init kasan_pte_offset(pmd_t *pmdp, unsigned long addr, int node,
                                       bool early)
 {
-        if (pmd_none(*pmd)) {
+        if (pmd_none(READ_ONCE(*pmdp))) {
                 phys_addr_t pte_phys = early ? __pa_symbol(kasan_zero_pte)
                                              : kasan_alloc_zeroed_page(node);
-                __pmd_populate(pmd, pte_phys, PMD_TYPE_TABLE);
+                __pmd_populate(pmdp, pte_phys, PMD_TYPE_TABLE);
         }
 
-        return early ? pte_offset_kimg(pmd, addr)
-                     : pte_offset_kernel(pmd, addr);
+        return early ? pte_offset_kimg(pmdp, addr)
+                     : pte_offset_kernel(pmdp, addr);
 }
 
-static pmd_t *__init kasan_pmd_offset(pud_t *pud, unsigned long addr, int node,
+static pmd_t *__init kasan_pmd_offset(pud_t *pudp, unsigned long addr, int node,
                                       bool early)
 {
-        if (pud_none(*pud)) {
+        if (pud_none(READ_ONCE(*pudp))) {
                 phys_addr_t pmd_phys = early ? __pa_symbol(kasan_zero_pmd)
                                              : kasan_alloc_zeroed_page(node);
-                __pud_populate(pud, pmd_phys, PMD_TYPE_TABLE);
+                __pud_populate(pudp, pmd_phys, PMD_TYPE_TABLE);
         }
 
-        return early ? pmd_offset_kimg(pud, addr) : pmd_offset(pud, addr);
+        return early ? pmd_offset_kimg(pudp, addr) : pmd_offset(pudp, addr);
 }
 
-static pud_t *__init kasan_pud_offset(pgd_t *pgd, unsigned long addr, int node,
+static pud_t *__init kasan_pud_offset(pgd_t *pgdp, unsigned long addr, int node,
                                       bool early)
 {
-        if (pgd_none(*pgd)) {
+        if (pgd_none(READ_ONCE(*pgdp))) {
                 phys_addr_t pud_phys = early ? __pa_symbol(kasan_zero_pud)
                                              : kasan_alloc_zeroed_page(node);
-                __pgd_populate(pgd, pud_phys, PMD_TYPE_TABLE);
+                __pgd_populate(pgdp, pud_phys, PMD_TYPE_TABLE);
         }
 
-        return early ? pud_offset_kimg(pgd, addr) : pud_offset(pgd, addr);
+        return early ? pud_offset_kimg(pgdp, addr) : pud_offset(pgdp, addr);
 }
 
-static void __init kasan_pte_populate(pmd_t *pmd, unsigned long addr,
+static void __init kasan_pte_populate(pmd_t *pmdp, unsigned long addr,
                                       unsigned long end, int node, bool early)
 {
         unsigned long next;
-        pte_t *pte = kasan_pte_offset(pmd, addr, node, early);
+        pte_t *ptep = kasan_pte_offset(pmdp, addr, node, early);
 
         do {
                 phys_addr_t page_phys = early ? __pa_symbol(kasan_zero_page)
                                               : kasan_alloc_zeroed_page(node);
                 next = addr + PAGE_SIZE;
-                set_pte(pte, pfn_pte(__phys_to_pfn(page_phys), PAGE_KERNEL));
-        } while (pte++, addr = next, addr != end && pte_none(*pte));
+                set_pte(ptep, pfn_pte(__phys_to_pfn(page_phys), PAGE_KERNEL));
+        } while (ptep++, addr = next, addr != end && pte_none(READ_ONCE(*ptep)));
 }
 
-static void __init kasan_pmd_populate(pud_t *pud, unsigned long addr,
+static void __init kasan_pmd_populate(pud_t *pudp, unsigned long addr,
                                       unsigned long end, int node, bool early)
 {
         unsigned long next;
-        pmd_t *pmd = kasan_pmd_offset(pud, addr, node, early);
+        pmd_t *pmdp = kasan_pmd_offset(pudp, addr, node, early);
 
         do {
                 next = pmd_addr_end(addr, end);
-                kasan_pte_populate(pmd, addr, next, node, early);
-        } while (pmd++, addr = next, addr != end && pmd_none(*pmd));
+                kasan_pte_populate(pmdp, addr, next, node, early);
+        } while (pmdp++, addr = next, addr != end && pmd_none(READ_ONCE(*pmdp)));
 }
 
-static void __init kasan_pud_populate(pgd_t *pgd, unsigned long addr,
+static void __init kasan_pud_populate(pgd_t *pgdp, unsigned long addr,
                                       unsigned long end, int node, bool early)
 {
         unsigned long next;
-        pud_t *pud = kasan_pud_offset(pgd, addr, node, early);
+        pud_t *pudp = kasan_pud_offset(pgdp, addr, node, early);
 
         do {
                 next = pud_addr_end(addr, end);
-                kasan_pmd_populate(pud, addr, next, node, early);
-        } while (pud++, addr = next, addr != end && pud_none(*pud));
+                kasan_pmd_populate(pudp, addr, next, node, early);
+        } while (pudp++, addr = next, addr != end && pud_none(READ_ONCE(*pudp)));
 }
 
 static void __init kasan_pgd_populate(unsigned long addr, unsigned long end,
                                       int node, bool early)
 {
         unsigned long next;
-        pgd_t *pgd;
+        pgd_t *pgdp;
 
-        pgd = pgd_offset_k(addr);
+        pgdp = pgd_offset_k(addr);
         do {
                 next = pgd_addr_end(addr, end);
-                kasan_pud_populate(pgd, addr, next, node, early);
-        } while (pgd++, addr = next, addr != end);
+                kasan_pud_populate(pgdp, addr, next, node, early);
+        } while (pgdp++, addr = next, addr != end);
 }
 
 /* The early shadow maps everything to a single page of zeroes */
@@ -155,14 +155,14 @@ static void __init kasan_map_populate(unsigned long start, unsigned long end,
  */
 void __init kasan_copy_shadow(pgd_t *pgdir)
 {
-        pgd_t *pgd, *pgd_new, *pgd_end;
+        pgd_t *pgdp, *pgdp_new, *pgdp_end;
 
-        pgd = pgd_offset_k(KASAN_SHADOW_START);
-        pgd_end = pgd_offset_k(KASAN_SHADOW_END);
-        pgd_new = pgd_offset_raw(pgdir, KASAN_SHADOW_START);
+        pgdp = pgd_offset_k(KASAN_SHADOW_START);
+        pgdp_end = pgd_offset_k(KASAN_SHADOW_END);
+        pgdp_new = pgd_offset_raw(pgdir, KASAN_SHADOW_START);
         do {
-                set_pgd(pgd_new, *pgd);
-        } while (pgd++, pgd_new++, pgd != pgd_end);
+                set_pgd(pgdp_new, READ_ONCE(*pgdp));
+        } while (pgdp++, pgdp_new++, pgdp != pgdp_end);
 }
 
 static void __init clear_pgds(unsigned long start,
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 4694cda823c9..2dbb2c9f1ec1 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -108,7 +108,7 @@ static bool pgattr_change_is_safe(u64 old, u64 new)
          * The following mapping attributes may be updated in live
          * kernel mappings without the need for break-before-make.
          */
-        static const pteval_t mask = PTE_PXN | PTE_RDONLY | PTE_WRITE;
+        static const pteval_t mask = PTE_PXN | PTE_RDONLY | PTE_WRITE | PTE_NG;
 
         /* creating or taking down mappings is always safe */
         if (old == 0 || new == 0)
@@ -118,52 +118,55 @@ static bool pgattr_change_is_safe(u64 old, u64 new)
         if ((old | new) & PTE_CONT)
                 return false;
 
-        /* Transitioning from Global to Non-Global is safe */
-        if (((old ^ new) == PTE_NG) && (new & PTE_NG))
-                return true;
+        /* Transitioning from Non-Global to Global is unsafe */
+        if (old & ~new & PTE_NG)
+                return false;
 
         return ((old ^ new) & ~mask) == 0;
 }
 
-static void init_pte(pmd_t *pmd, unsigned long addr, unsigned long end,
+static void init_pte(pmd_t *pmdp, unsigned long addr, unsigned long end,
                      phys_addr_t phys, pgprot_t prot)
 {
-        pte_t *pte;
+        pte_t *ptep;
 
-        pte = pte_set_fixmap_offset(pmd, addr);
+        ptep = pte_set_fixmap_offset(pmdp, addr);
         do {
-                pte_t old_pte = *pte;
+                pte_t old_pte = READ_ONCE(*ptep);
 
-                set_pte(pte, pfn_pte(__phys_to_pfn(phys), prot));
+                set_pte(ptep, pfn_pte(__phys_to_pfn(phys), prot));
 
                 /*
                  * After the PTE entry has been populated once, we
                  * only allow updates to the permission attributes.
                  */
-                BUG_ON(!pgattr_change_is_safe(pte_val(old_pte), pte_val(*pte)));
+                BUG_ON(!pgattr_change_is_safe(pte_val(old_pte),
+                                              READ_ONCE(pte_val(*ptep))));
 
                 phys += PAGE_SIZE;
-        } while (pte++, addr += PAGE_SIZE, addr != end);
+        } while (ptep++, addr += PAGE_SIZE, addr != end);
 
         pte_clear_fixmap();
 }
 
-static void alloc_init_cont_pte(pmd_t *pmd, unsigned long addr,
+static void alloc_init_cont_pte(pmd_t *pmdp, unsigned long addr,
                                 unsigned long end, phys_addr_t phys,
                                 pgprot_t prot,
                                 phys_addr_t (*pgtable_alloc)(void),
                                 int flags)
 {
         unsigned long next;
+        pmd_t pmd = READ_ONCE(*pmdp);
 
-        BUG_ON(pmd_sect(*pmd));
-        if (pmd_none(*pmd)) {
+        BUG_ON(pmd_sect(pmd));
+        if (pmd_none(pmd)) {
                 phys_addr_t pte_phys;
                 BUG_ON(!pgtable_alloc);
                 pte_phys = pgtable_alloc();
-                __pmd_populate(pmd, pte_phys, PMD_TYPE_TABLE);
+                __pmd_populate(pmdp, pte_phys, PMD_TYPE_TABLE);
+                pmd = READ_ONCE(*pmdp);
         }
-        BUG_ON(pmd_bad(*pmd));
+        BUG_ON(pmd_bad(pmd));
 
         do {
                 pgprot_t __prot = prot;
@@ -175,67 +178,69 @@ static void alloc_init_cont_pte(pmd_t *pmd, unsigned long addr,
                     (flags & NO_CONT_MAPPINGS) == 0)
                         __prot = __pgprot(pgprot_val(prot) | PTE_CONT);
 
-                init_pte(pmd, addr, next, phys, __prot);
+                init_pte(pmdp, addr, next, phys, __prot);
 
                 phys += next - addr;
         } while (addr = next, addr != end);
 }
 
-static void init_pmd(pud_t *pud, unsigned long addr, unsigned long end,
+static void init_pmd(pud_t *pudp, unsigned long addr, unsigned long end,
                      phys_addr_t phys, pgprot_t prot,
                      phys_addr_t (*pgtable_alloc)(void), int flags)
 {
         unsigned long next;
-        pmd_t *pmd;
+        pmd_t *pmdp;
 
-        pmd = pmd_set_fixmap_offset(pud, addr);
+        pmdp = pmd_set_fixmap_offset(pudp, addr);
         do {
-                pmd_t old_pmd = *pmd;
+                pmd_t old_pmd = READ_ONCE(*pmdp);
 
                 next = pmd_addr_end(addr, end);
 
                 /* try section mapping first */
                 if (((addr | next | phys) & ~SECTION_MASK) == 0 &&
                     (flags & NO_BLOCK_MAPPINGS) == 0) {
-                        pmd_set_huge(pmd, phys, prot);
+                        pmd_set_huge(pmdp, phys, prot);
 
                         /*
                          * After the PMD entry has been populated once, we
                          * only allow updates to the permission attributes.
                          */
                         BUG_ON(!pgattr_change_is_safe(pmd_val(old_pmd),
-                                                      pmd_val(*pmd)));
+                                                      READ_ONCE(pmd_val(*pmdp))));
                 } else {
-                        alloc_init_cont_pte(pmd, addr, next, phys, prot,
+                        alloc_init_cont_pte(pmdp, addr, next, phys, prot,
                                             pgtable_alloc, flags);
 
                         BUG_ON(pmd_val(old_pmd) != 0 &&
-                               pmd_val(old_pmd) != pmd_val(*pmd));
+                               pmd_val(old_pmd) != READ_ONCE(pmd_val(*pmdp)));
                 }
                 phys += next - addr;
-        } while (pmd++, addr = next, addr != end);
+        } while (pmdp++, addr = next, addr != end);
 
         pmd_clear_fixmap();
 }
 
-static void alloc_init_cont_pmd(pud_t *pud, unsigned long addr,
+static void alloc_init_cont_pmd(pud_t *pudp, unsigned long addr,
                                 unsigned long end, phys_addr_t phys,
                                 pgprot_t prot,
                                 phys_addr_t (*pgtable_alloc)(void), int flags)
 {
         unsigned long next;
+        pud_t pud = READ_ONCE(*pudp);
 
         /*
          * Check for initial section mappings in the pgd/pud.
          */
-        BUG_ON(pud_sect(*pud));
-        if (pud_none(*pud)) {
+        BUG_ON(pud_sect(pud));
+        if (pud_none(pud)) {
                 phys_addr_t pmd_phys;
                 BUG_ON(!pgtable_alloc);
                 pmd_phys = pgtable_alloc();
-                __pud_populate(pud, pmd_phys, PUD_TYPE_TABLE);
+                __pud_populate(pudp, pmd_phys, PUD_TYPE_TABLE);
+                pud = READ_ONCE(*pudp);
         }
-        BUG_ON(pud_bad(*pud));
+        BUG_ON(pud_bad(pud));
 
         do {
                 pgprot_t __prot = prot;
@@ -247,7 +252,7 @@ static void alloc_init_cont_pmd(pud_t *pud, unsigned long addr,
                     (flags & NO_CONT_MAPPINGS) == 0)
                         __prot = __pgprot(pgprot_val(prot) | PTE_CONT);
 
-                init_pmd(pud, addr, next, phys, __prot, pgtable_alloc, flags);
+                init_pmd(pudp, addr, next, phys, __prot, pgtable_alloc, flags);
 
                 phys += next - addr;
         } while (addr = next, addr != end);
@@ -265,25 +270,27 @@ static inline bool use_1G_block(unsigned long addr, unsigned long next,
         return true;
 }
 
-static void alloc_init_pud(pgd_t *pgd, unsigned long addr, unsigned long end,
-                                  phys_addr_t phys, pgprot_t prot,
-                                  phys_addr_t (*pgtable_alloc)(void),
-                                  int flags)
+static void alloc_init_pud(pgd_t *pgdp, unsigned long addr, unsigned long end,
+                           phys_addr_t phys, pgprot_t prot,
+                           phys_addr_t (*pgtable_alloc)(void),
+                           int flags)
 {
-        pud_t *pud;
         unsigned long next;
+        pud_t *pudp;
+        pgd_t pgd = READ_ONCE(*pgdp);
 
-        if (pgd_none(*pgd)) {
+        if (pgd_none(pgd)) {
                 phys_addr_t pud_phys;
                 BUG_ON(!pgtable_alloc);
                 pud_phys = pgtable_alloc();
-                __pgd_populate(pgd, pud_phys, PUD_TYPE_TABLE);
+                __pgd_populate(pgdp, pud_phys, PUD_TYPE_TABLE);
+                pgd = READ_ONCE(*pgdp);
         }
-        BUG_ON(pgd_bad(*pgd));
+        BUG_ON(pgd_bad(pgd));
 
-        pud = pud_set_fixmap_offset(pgd, addr);
+        pudp = pud_set_fixmap_offset(pgdp, addr);
         do {
-                pud_t old_pud = *pud;
+                pud_t old_pud = READ_ONCE(*pudp);
 
                 next = pud_addr_end(addr, end);
 
@@ -292,23 +299,23 @@ static void alloc_init_pud(pgd_t *pgd, unsigned long addr, unsigned long end,
                  */
                 if (use_1G_block(addr, next, phys) &&
                     (flags & NO_BLOCK_MAPPINGS) == 0) {
-                        pud_set_huge(pud, phys, prot);
+                        pud_set_huge(pudp, phys, prot);
 
                         /*
                          * After the PUD entry has been populated once, we
                          * only allow updates to the permission attributes.
                          */
                         BUG_ON(!pgattr_change_is_safe(pud_val(old_pud),
-                                                      pud_val(*pud)));
+                                                      READ_ONCE(pud_val(*pudp))));
                 } else {
-                        alloc_init_cont_pmd(pud, addr, next, phys, prot,
+                        alloc_init_cont_pmd(pudp, addr, next, phys, prot,
                                             pgtable_alloc, flags);
 
                         BUG_ON(pud_val(old_pud) != 0 &&
-                               pud_val(old_pud) != pud_val(*pud));
+                               pud_val(old_pud) != READ_ONCE(pud_val(*pudp)));
                 }
                 phys += next - addr;
-        } while (pud++, addr = next, addr != end);
+        } while (pudp++, addr = next, addr != end);
 
         pud_clear_fixmap();
 }
@@ -320,7 +327,7 @@ static void __create_pgd_mapping(pgd_t *pgdir, phys_addr_t phys,
                                  int flags)
 {
         unsigned long addr, length, end, next;
-        pgd_t *pgd = pgd_offset_raw(pgdir, virt);
+        pgd_t *pgdp = pgd_offset_raw(pgdir, virt);
 
         /*
          * If the virtual and physical address don't have the same offset
@@ -336,10 +343,10 @@ static void __create_pgd_mapping(pgd_t *pgdir, phys_addr_t phys,
         end = addr + length;
         do {
                 next = pgd_addr_end(addr, end);
-                alloc_init_pud(pgd, addr, next, phys, prot, pgtable_alloc,
+                alloc_init_pud(pgdp, addr, next, phys, prot, pgtable_alloc,
                                flags);
                 phys += next - addr;
-        } while (pgd++, addr = next, addr != end);
+        } while (pgdp++, addr = next, addr != end);
 }
 
 static phys_addr_t pgd_pgtable_alloc(void)
@@ -401,10 +408,10 @@ static void update_mapping_prot(phys_addr_t phys, unsigned long virt,
         flush_tlb_kernel_range(virt, virt + size);
 }
 
-static void __init __map_memblock(pgd_t *pgd, phys_addr_t start,
+static void __init __map_memblock(pgd_t *pgdp, phys_addr_t start,
                                   phys_addr_t end, pgprot_t prot, int flags)
 {
-        __create_pgd_mapping(pgd, start, __phys_to_virt(start), end - start,
+        __create_pgd_mapping(pgdp, start, __phys_to_virt(start), end - start,
                              prot, early_pgtable_alloc, flags);
 }
 
@@ -418,7 +425,7 @@ void __init mark_linear_text_alias_ro(void)
                             PAGE_KERNEL_RO);
 }
 
-static void __init map_mem(pgd_t *pgd)
+static void __init map_mem(pgd_t *pgdp)
 {
         phys_addr_t kernel_start = __pa_symbol(_text);
         phys_addr_t kernel_end = __pa_symbol(__init_begin);
@@ -451,7 +458,7 @@ static void __init map_mem(pgd_t *pgd)
                 if (memblock_is_nomap(reg))
                         continue;
 
-                __map_memblock(pgd, start, end, PAGE_KERNEL, flags);
+                __map_memblock(pgdp, start, end, PAGE_KERNEL, flags);
         }
 
         /*
@@ -464,7 +471,7 @@ static void __init map_mem(pgd_t *pgd)
          * Note that contiguous mappings cannot be remapped in this way,
          * so we should avoid them here.
          */
-        __map_memblock(pgd, kernel_start, kernel_end,
+        __map_memblock(pgdp, kernel_start, kernel_end,
                        PAGE_KERNEL, NO_CONT_MAPPINGS);
         memblock_clear_nomap(kernel_start, kernel_end - kernel_start);
 
@@ -475,7 +482,7 @@ static void __init map_mem(pgd_t *pgd)
          * through /sys/kernel/kexec_crash_size interface.
          */
         if (crashk_res.end) {
-                __map_memblock(pgd, crashk_res.start, crashk_res.end + 1,
+                __map_memblock(pgdp, crashk_res.start, crashk_res.end + 1,
                                PAGE_KERNEL,
                                NO_BLOCK_MAPPINGS | NO_CONT_MAPPINGS);
                 memblock_clear_nomap(crashk_res.start,
@@ -499,7 +506,7 @@ void mark_rodata_ro(void)
         debug_checkwx();
 }
 
-static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end,
+static void __init map_kernel_segment(pgd_t *pgdp, void *va_start, void *va_end,
                                       pgprot_t prot, struct vm_struct *vma,
                                       int flags, unsigned long vm_flags)
 {
@@ -509,7 +516,7 @@ static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end,
         BUG_ON(!PAGE_ALIGNED(pa_start));
         BUG_ON(!PAGE_ALIGNED(size));
 
-        __create_pgd_mapping(pgd, pa_start, (unsigned long)va_start, size, prot,
+        __create_pgd_mapping(pgdp, pa_start, (unsigned long)va_start, size, prot,
                              early_pgtable_alloc, flags);
 
         if (!(vm_flags & VM_NO_GUARD))
@@ -562,7 +569,7 @@ core_initcall(map_entry_trampoline);
 /*
  * Create fine-grained mappings for the kernel.
  */
-static void __init map_kernel(pgd_t *pgd)
+static void __init map_kernel(pgd_t *pgdp)
 {
         static struct vm_struct vmlinux_text, vmlinux_rodata, vmlinux_inittext,
                                 vmlinux_initdata, vmlinux_data;
@@ -578,24 +585,24 @@ static void __init map_kernel(pgd_t *pgd)
          * Only rodata will be remapped with different permissions later on,
          * all other segments are allowed to use contiguous mappings.
          */
-        map_kernel_segment(pgd, _text, _etext, text_prot, &vmlinux_text, 0,
+        map_kernel_segment(pgdp, _text, _etext, text_prot, &vmlinux_text, 0,
                            VM_NO_GUARD);
-        map_kernel_segment(pgd, __start_rodata, __inittext_begin, PAGE_KERNEL,
+        map_kernel_segment(pgdp, __start_rodata, __inittext_begin, PAGE_KERNEL,
                            &vmlinux_rodata, NO_CONT_MAPPINGS, VM_NO_GUARD);
-        map_kernel_segment(pgd, __inittext_begin, __inittext_end, text_prot,
+        map_kernel_segment(pgdp, __inittext_begin, __inittext_end, text_prot,
                            &vmlinux_inittext, 0, VM_NO_GUARD);
-        map_kernel_segment(pgd, __initdata_begin, __initdata_end, PAGE_KERNEL,
+        map_kernel_segment(pgdp, __initdata_begin, __initdata_end, PAGE_KERNEL,
                            &vmlinux_initdata, 0, VM_NO_GUARD);
-        map_kernel_segment(pgd, _data, _end, PAGE_KERNEL, &vmlinux_data, 0, 0);
+        map_kernel_segment(pgdp, _data, _end, PAGE_KERNEL, &vmlinux_data, 0, 0);
 
-        if (!pgd_val(*pgd_offset_raw(pgd, FIXADDR_START))) {
+        if (!READ_ONCE(pgd_val(*pgd_offset_raw(pgdp, FIXADDR_START)))) {
                 /*
                  * The fixmap falls in a separate pgd to the kernel, and doesn't
                  * live in the carveout for the swapper_pg_dir. We can simply
                  * re-use the existing dir for the fixmap.
                  */
-                set_pgd(pgd_offset_raw(pgd, FIXADDR_START),
-                        *pgd_offset_k(FIXADDR_START));
+                set_pgd(pgd_offset_raw(pgdp, FIXADDR_START),
+                        READ_ONCE(*pgd_offset_k(FIXADDR_START)));
         } else if (CONFIG_PGTABLE_LEVELS > 3) {
                 /*
                  * The fixmap shares its top level pgd entry with the kernel
@@ -604,14 +611,15 @@ static void __init map_kernel(pgd_t *pgd)
                  * entry instead.
                  */
                 BUG_ON(!IS_ENABLED(CONFIG_ARM64_16K_PAGES));
-                pud_populate(&init_mm, pud_set_fixmap_offset(pgd, FIXADDR_START),
+                pud_populate(&init_mm,
+                             pud_set_fixmap_offset(pgdp, FIXADDR_START),
                              lm_alias(bm_pmd));
                 pud_clear_fixmap();
         } else {
                 BUG();
         }
 
-        kasan_copy_shadow(pgd);
+        kasan_copy_shadow(pgdp);
 }
 
 /*
@@ -621,10 +629,10 @@ static void __init map_kernel(pgd_t *pgd)
 void __init paging_init(void)
 {
         phys_addr_t pgd_phys = early_pgtable_alloc();
-        pgd_t *pgd = pgd_set_fixmap(pgd_phys);
+        pgd_t *pgdp = pgd_set_fixmap(pgd_phys);
 
-        map_kernel(pgd);
-        map_mem(pgd);
+        map_kernel(pgdp);
+        map_mem(pgdp);
 
         /*
          * We want to reuse the original swapper_pg_dir so we don't have to
@@ -635,7 +643,7 @@ void __init paging_init(void)
          * To do this we need to go via a temporary pgd.
          */
         cpu_replace_ttbr1(__va(pgd_phys));
-        memcpy(swapper_pg_dir, pgd, PGD_SIZE);
+        memcpy(swapper_pg_dir, pgdp, PGD_SIZE);
         cpu_replace_ttbr1(lm_alias(swapper_pg_dir));
 
         pgd_clear_fixmap();
@@ -655,37 +663,40 @@ void __init paging_init(void)
  */
 int kern_addr_valid(unsigned long addr)
 {
-        pgd_t *pgd;
-        pud_t *pud;
-        pmd_t *pmd;
-        pte_t *pte;
+        pgd_t *pgdp;
+        pud_t *pudp, pud;
+        pmd_t *pmdp, pmd;
+        pte_t *ptep, pte;
 
         if ((((long)addr) >> VA_BITS) != -1UL)
                 return 0;
 
-        pgd = pgd_offset_k(addr);
-        if (pgd_none(*pgd))
+        pgdp = pgd_offset_k(addr);
+        if (pgd_none(READ_ONCE(*pgdp)))
                 return 0;
 
-        pud = pud_offset(pgd, addr);
-        if (pud_none(*pud))
+        pudp = pud_offset(pgdp, addr);
+        pud = READ_ONCE(*pudp);
+        if (pud_none(pud))
                 return 0;
 
-        if (pud_sect(*pud))
-                return pfn_valid(pud_pfn(*pud));
+        if (pud_sect(pud))
+                return pfn_valid(pud_pfn(pud));
 
-        pmd = pmd_offset(pud, addr);
-        if (pmd_none(*pmd))
+        pmdp = pmd_offset(pudp, addr);
+        pmd = READ_ONCE(*pmdp);
+        if (pmd_none(pmd))
                 return 0;
 
-        if (pmd_sect(*pmd))
-                return pfn_valid(pmd_pfn(*pmd));
+        if (pmd_sect(pmd))
+                return pfn_valid(pmd_pfn(pmd));
 
-        pte = pte_offset_kernel(pmd, addr);
-        if (pte_none(*pte))
+        ptep = pte_offset_kernel(pmdp, addr);
+        pte = READ_ONCE(*ptep);
+        if (pte_none(pte))
                 return 0;
 
-        return pfn_valid(pte_pfn(*pte));
+        return pfn_valid(pte_pfn(pte));
 }
 #ifdef CONFIG_SPARSEMEM_VMEMMAP
 #if !ARM64_SWAPPER_USES_SECTION_MAPS
@@ -700,32 +711,32 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node,
 {
         unsigned long addr = start;
         unsigned long next;
-        pgd_t *pgd;
-        pud_t *pud;
-        pmd_t *pmd;
+        pgd_t *pgdp;
+        pud_t *pudp;
+        pmd_t *pmdp;
 
         do {
                 next = pmd_addr_end(addr, end);
 
-                pgd = vmemmap_pgd_populate(addr, node);
-                if (!pgd)
+                pgdp = vmemmap_pgd_populate(addr, node);
+                if (!pgdp)
                         return -ENOMEM;
 
-                pud = vmemmap_pud_populate(pgd, addr, node);
-                if (!pud)
+                pudp = vmemmap_pud_populate(pgdp, addr, node);
+                if (!pudp)
                         return -ENOMEM;
 
-                pmd = pmd_offset(pud, addr);
-                if (pmd_none(*pmd)) {
+                pmdp = pmd_offset(pudp, addr);
+                if (pmd_none(READ_ONCE(*pmdp))) {
                         void *p = NULL;
 
                         p = vmemmap_alloc_block_buf(PMD_SIZE, node);
                         if (!p)
                                 return -ENOMEM;
 
-                        pmd_set_huge(pmd, __pa(p), __pgprot(PROT_SECT_NORMAL));
+                        pmd_set_huge(pmdp, __pa(p), __pgprot(PROT_SECT_NORMAL));
                 } else
-                        vmemmap_verify((pte_t *)pmd, node, addr, next);
+                        vmemmap_verify((pte_t *)pmdp, node, addr, next);
         } while (addr = next, addr != end);
 
         return 0;
@@ -739,20 +750,22 @@ void vmemmap_free(unsigned long start, unsigned long end,
 
 static inline pud_t * fixmap_pud(unsigned long addr)
 {
-        pgd_t *pgd = pgd_offset_k(addr);
+        pgd_t *pgdp = pgd_offset_k(addr);
+        pgd_t pgd = READ_ONCE(*pgdp);
 
-        BUG_ON(pgd_none(*pgd) || pgd_bad(*pgd));
+        BUG_ON(pgd_none(pgd) || pgd_bad(pgd));
 
-        return pud_offset_kimg(pgd, addr);
+        return pud_offset_kimg(pgdp, addr);
 }
 
 static inline pmd_t * fixmap_pmd(unsigned long addr)
 {
-        pud_t *pud = fixmap_pud(addr);
+        pud_t *pudp = fixmap_pud(addr);
+        pud_t pud = READ_ONCE(*pudp);
 
-        BUG_ON(pud_none(*pud) || pud_bad(*pud));
+        BUG_ON(pud_none(pud) || pud_bad(pud));
 
-        return pmd_offset_kimg(pud, addr);
+        return pmd_offset_kimg(pudp, addr);
 }
 
 static inline pte_t * fixmap_pte(unsigned long addr)
@@ -768,30 +781,31 @@ static inline pte_t * fixmap_pte(unsigned long addr)
  */
 void __init early_fixmap_init(void)
 {
-        pgd_t *pgd;
-        pud_t *pud;
-        pmd_t *pmd;
+        pgd_t *pgdp, pgd;
+        pud_t *pudp;
+        pmd_t *pmdp;
         unsigned long addr = FIXADDR_START;
 
-        pgd = pgd_offset_k(addr);
+        pgdp = pgd_offset_k(addr);
+        pgd = READ_ONCE(*pgdp);
         if (CONFIG_PGTABLE_LEVELS > 3 &&
-            !(pgd_none(*pgd) || pgd_page_paddr(*pgd) == __pa_symbol(bm_pud))) {
+            !(pgd_none(pgd) || pgd_page_paddr(pgd) == __pa_symbol(bm_pud))) {
                 /*
                  * We only end up here if the kernel mapping and the fixmap
                  * share the top level pgd entry, which should only happen on
                  * 16k/4 levels configurations.
                  */
                 BUG_ON(!IS_ENABLED(CONFIG_ARM64_16K_PAGES));
-                pud = pud_offset_kimg(pgd, addr);
+                pudp = pud_offset_kimg(pgdp, addr);
         } else {
-                if (pgd_none(*pgd))
-                        __pgd_populate(pgd, __pa_symbol(bm_pud), PUD_TYPE_TABLE);
-                pud = fixmap_pud(addr);
+                if (pgd_none(pgd))
+                        __pgd_populate(pgdp, __pa_symbol(bm_pud), PUD_TYPE_TABLE);
+                pudp = fixmap_pud(addr);
         }
-        if (pud_none(*pud))
-                __pud_populate(pud, __pa_symbol(bm_pmd), PMD_TYPE_TABLE);
-        pmd = fixmap_pmd(addr);
-        __pmd_populate(pmd, __pa_symbol(bm_pte), PMD_TYPE_TABLE);
+        if (pud_none(READ_ONCE(*pudp)))
+                __pud_populate(pudp, __pa_symbol(bm_pmd), PMD_TYPE_TABLE);
+        pmdp = fixmap_pmd(addr);
+        __pmd_populate(pmdp, __pa_symbol(bm_pte), PMD_TYPE_TABLE);
 
         /*
          * The boot-ioremap range spans multiple pmds, for which
@@ -800,11 +814,11 @@ void __init early_fixmap_init(void)
         BUILD_BUG_ON((__fix_to_virt(FIX_BTMAP_BEGIN) >> PMD_SHIFT)
                      != (__fix_to_virt(FIX_BTMAP_END) >> PMD_SHIFT));
 
-        if ((pmd != fixmap_pmd(fix_to_virt(FIX_BTMAP_BEGIN)))
-             || pmd != fixmap_pmd(fix_to_virt(FIX_BTMAP_END))) {
+        if ((pmdp != fixmap_pmd(fix_to_virt(FIX_BTMAP_BEGIN)))
+             || pmdp != fixmap_pmd(fix_to_virt(FIX_BTMAP_END))) {
                 WARN_ON(1);
-                pr_warn("pmd %p != %p, %p\n",
-                        pmd, fixmap_pmd(fix_to_virt(FIX_BTMAP_BEGIN)),
+                pr_warn("pmdp %p != %p, %p\n",
+                        pmdp, fixmap_pmd(fix_to_virt(FIX_BTMAP_BEGIN)),
                         fixmap_pmd(fix_to_virt(FIX_BTMAP_END)));
                 pr_warn("fix_to_virt(FIX_BTMAP_BEGIN): %08lx\n",
                         fix_to_virt(FIX_BTMAP_BEGIN));
@@ -824,16 +838,16 @@ void __set_fixmap(enum fixed_addresses idx,
                                phys_addr_t phys, pgprot_t flags)
 {
         unsigned long addr = __fix_to_virt(idx);
-        pte_t *pte;
+        pte_t *ptep;
 
         BUG_ON(idx <= FIX_HOLE || idx >= __end_of_fixed_addresses);
 
-        pte = fixmap_pte(addr);
+        ptep = fixmap_pte(addr);
 
         if (pgprot_val(flags)) {
-                set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags));
+                set_pte(ptep, pfn_pte(phys >> PAGE_SHIFT, flags));
         } else {
-                pte_clear(&init_mm, addr, pte);
+                pte_clear(&init_mm, addr, ptep);
                 flush_tlb_kernel_range(addr, addr+PAGE_SIZE);
         }
 }
@@ -915,36 +929,56 @@ int __init arch_ioremap_pmd_supported(void)
         return 1;
 }
 
-int pud_set_huge(pud_t *pud, phys_addr_t phys, pgprot_t prot)
+int pud_set_huge(pud_t *pudp, phys_addr_t phys, pgprot_t prot)
 {
         pgprot_t sect_prot = __pgprot(PUD_TYPE_SECT |
                                         pgprot_val(mk_sect_prot(prot)));
+
+        /* ioremap_page_range doesn't honour BBM */
+        if (pud_present(READ_ONCE(*pudp)))
+                return 0;
+
         BUG_ON(phys & ~PUD_MASK);
-        set_pud(pud, pfn_pud(__phys_to_pfn(phys), sect_prot));
+        set_pud(pudp, pfn_pud(__phys_to_pfn(phys), sect_prot));
         return 1;
 }
 
-int pmd_set_huge(pmd_t *pmd, phys_addr_t phys, pgprot_t prot)
+int pmd_set_huge(pmd_t *pmdp, phys_addr_t phys, pgprot_t prot)
 {
         pgprot_t sect_prot = __pgprot(PMD_TYPE_SECT |
                                         pgprot_val(mk_sect_prot(prot)));
+
+        /* ioremap_page_range doesn't honour BBM */
+        if (pmd_present(READ_ONCE(*pmdp)))
+                return 0;
+
         BUG_ON(phys & ~PMD_MASK);
-        set_pmd(pmd, pfn_pmd(__phys_to_pfn(phys), sect_prot));
+        set_pmd(pmdp, pfn_pmd(__phys_to_pfn(phys), sect_prot));
         return 1;
 }
 
-int pud_clear_huge(pud_t *pud)
+int pud_clear_huge(pud_t *pudp)
 {
-        if (!pud_sect(*pud))
+        if (!pud_sect(READ_ONCE(*pudp)))
                 return 0;
-        pud_clear(pud);
+        pud_clear(pudp);
         return 1;
 }
 
-int pmd_clear_huge(pmd_t *pmd)
+int pmd_clear_huge(pmd_t *pmdp)
 {
-        if (!pmd_sect(*pmd))
+        if (!pmd_sect(READ_ONCE(*pmdp)))
                 return 0;
-        pmd_clear(pmd);
+        pmd_clear(pmdp);
         return 1;
 }
+
+int pud_free_pmd_page(pud_t *pud)
+{
+        return pud_none(*pud);
+}
+
+int pmd_free_pte_page(pmd_t *pmd)
+{
+        return pmd_none(*pmd);
+}
diff --git a/arch/arm64/mm/pageattr.c b/arch/arm64/mm/pageattr.c
index a682a0a2a0fa..a56359373d8b 100644
--- a/arch/arm64/mm/pageattr.c
+++ b/arch/arm64/mm/pageattr.c
@@ -29,7 +29,7 @@ static int change_page_range(pte_t *ptep, pgtable_t token, unsigned long addr,
                         void *data)
 {
         struct page_change_data *cdata = data;
-        pte_t pte = *ptep;
+        pte_t pte = READ_ONCE(*ptep);
 
         pte = clear_pte_bit(pte, cdata->clear_mask);
         pte = set_pte_bit(pte, cdata->set_mask);
@@ -156,30 +156,32 @@ void __kernel_map_pages(struct page *page, int numpages, int enable)
  */
 bool kernel_page_present(struct page *page)
 {
-        pgd_t *pgd;
-        pud_t *pud;
-        pmd_t *pmd;
-        pte_t *pte;
+        pgd_t *pgdp;
+        pud_t *pudp, pud;
+        pmd_t *pmdp, pmd;
+        pte_t *ptep;
         unsigned long addr = (unsigned long)page_address(page);
 
-        pgd = pgd_offset_k(addr);
-        if (pgd_none(*pgd))
+        pgdp = pgd_offset_k(addr);
+        if (pgd_none(READ_ONCE(*pgdp)))
                 return false;
 
-        pud = pud_offset(pgd, addr);
-        if (pud_none(*pud))
+        pudp = pud_offset(pgdp, addr);
+        pud = READ_ONCE(*pudp);
+        if (pud_none(pud))
                 return false;
-        if (pud_sect(*pud))
+        if (pud_sect(pud))
                 return true;
 
-        pmd = pmd_offset(pud, addr);
-        if (pmd_none(*pmd))
+        pmdp = pmd_offset(pudp, addr);
+        pmd = READ_ONCE(*pmdp);
+        if (pmd_none(pmd))
                 return false;
-        if (pmd_sect(*pmd))
+        if (pmd_sect(pmd))
                 return true;
 
-        pte = pte_offset_kernel(pmd, addr);
-        return pte_valid(*pte);
+        ptep = pte_offset_kernel(pmdp, addr);
+        return pte_valid(READ_ONCE(*ptep));
 }
 #endif /* CONFIG_HIBERNATION */
 #endif /* CONFIG_DEBUG_PAGEALLOC */
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index 71baed7e592a..c0af47617299 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -205,7 +205,8 @@ ENDPROC(idmap_cpu_replace_ttbr1)
         dc      cvac, cur_\()\type\()p          // Ensure any existing dirty
         dmb     sy                              // lines are written back before
         ldr     \type, [cur_\()\type\()p]       // loading the entry
-        tbz     \type, #0, next_\()\type        // Skip invalid entries
+        tbz     \type, #0, skip_\()\type        // Skip invalid and
+        tbnz    \type, #11, skip_\()\type       // non-global entries
         .endm
 
         .macro __idmap_kpti_put_pgtable_ent_ng, type
@@ -265,8 +266,9 @@ ENTRY(idmap_kpti_install_ng_mappings)
         add     end_pgdp, cur_pgdp, #(PTRS_PER_PGD * 8)
 do_pgd: __idmap_kpti_get_pgtable_ent    pgd
         tbnz    pgd, #1, walk_puds
-        __idmap_kpti_put_pgtable_ent_ng pgd
 next_pgd:
+        __idmap_kpti_put_pgtable_ent_ng pgd
+skip_pgd:
         add     cur_pgdp, cur_pgdp, #8
         cmp     cur_pgdp, end_pgdp
         b.ne    do_pgd
@@ -294,8 +296,9 @@ walk_puds:
         add     end_pudp, cur_pudp, #(PTRS_PER_PUD * 8)
 do_pud: __idmap_kpti_get_pgtable_ent    pud
         tbnz    pud, #1, walk_pmds
-        __idmap_kpti_put_pgtable_ent_ng pud
 next_pud:
+        __idmap_kpti_put_pgtable_ent_ng pud
+skip_pud:
         add     cur_pudp, cur_pudp, 8
         cmp     cur_pudp, end_pudp
         b.ne    do_pud
@@ -314,8 +317,9 @@ walk_pmds:
         add     end_pmdp, cur_pmdp, #(PTRS_PER_PMD * 8)
 do_pmd: __idmap_kpti_get_pgtable_ent    pmd
         tbnz    pmd, #1, walk_ptes
-        __idmap_kpti_put_pgtable_ent_ng pmd
 next_pmd:
+        __idmap_kpti_put_pgtable_ent_ng pmd
+skip_pmd:
         add     cur_pmdp, cur_pmdp, #8
         cmp     cur_pmdp, end_pmdp
         b.ne    do_pmd
@@ -333,7 +337,7 @@ walk_ptes:
         add     end_ptep, cur_ptep, #(PTRS_PER_PTE * 8)
 do_pte: __idmap_kpti_get_pgtable_ent    pte
         __idmap_kpti_put_pgtable_ent_ng pte
-next_pte:
+skip_pte:
         add     cur_ptep, cur_ptep, #8
         cmp     cur_ptep, end_ptep
         b.ne    do_pte
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 1d4f1da7c58f..a93350451e8e 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -250,8 +250,9 @@ static int emit_bpf_tail_call(struct jit_ctx *ctx)
         off = offsetof(struct bpf_array, map.max_entries);
         emit_a64_mov_i64(tmp, off, ctx);
         emit(A64_LDR32(tmp, r2, tmp), ctx);
+        emit(A64_MOV(0, r3, r3), ctx);
         emit(A64_CMP(0, r3, tmp), ctx);
-        emit(A64_B_(A64_COND_GE, jmp_offset), ctx);
+        emit(A64_B_(A64_COND_CS, jmp_offset), ctx);
 
         /* if (tail_call_cnt > MAX_TAIL_CALL_CNT)
          *     goto out;
@@ -259,7 +260,7 @@ static int emit_bpf_tail_call(struct jit_ctx *ctx)
          */
         emit_a64_mov_i64(tmp, MAX_TAIL_CALL_CNT, ctx);
         emit(A64_CMP(1, tcc, tmp), ctx);
-        emit(A64_B_(A64_COND_GT, jmp_offset), ctx);
+        emit(A64_B_(A64_COND_HI, jmp_offset), ctx);
         emit(A64_ADD_I(1, tcc, tcc, 1), ctx);
 
         /* prog = array->ptrs[index];
diff --git a/arch/cris/include/arch-v10/arch/bug.h b/arch/cris/include/arch-v10/arch/bug.h
index 905afeacfedf..06da9d49152a 100644
--- a/arch/cris/include/arch-v10/arch/bug.h
+++ b/arch/cris/include/arch-v10/arch/bug.h
@@ -44,18 +44,25 @@ struct bug_frame {
  * not be used like this with newer versions of gcc.
  */
 #define BUG()                                                           \
+do {                                                                    \
         __asm__ __volatile__ ("clear.d [" __stringify(BUG_MAGIC) "]\n\t"\
                               "movu.w " __stringify(__LINE__) ",$r0\n\t"\
                               "jump 0f\n\t"                             \
                               ".section .rodata\n"                      \
                               "0:\t.string \"" __FILE__ "\"\n\t"        \
-                              ".previous")
+                              ".previous");                             \
+        unreachable();                                                  \
+} while (0)
 #endif
 
 #else
 
 /* This just causes an oops. */
-#define BUG() (*(int *)0 = 0)
+#define BUG()                                                           \
+do {                                                                    \
+        barrier_before_unreachable();                                   \
+        __builtin_trap();                                               \
+} while (0)
 
 #endif
 
diff --git a/arch/h8300/include/asm/byteorder.h b/arch/h8300/include/asm/byteorder.h
index ecff2d1ca5a3..6eaa7ad5fc2c 100644
--- a/arch/h8300/include/asm/byteorder.h
+++ b/arch/h8300/include/asm/byteorder.h
@@ -2,7 +2,6 @@
 #ifndef __H8300_BYTEORDER_H__
 #define __H8300_BYTEORDER_H__
 
-#define __BIG_ENDIAN __ORDER_BIG_ENDIAN__
 #include <linux/byteorder/big_endian.h>
 
 #endif
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index 762eeb0fcc1d..2524fb60fbc2 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -66,38 +66,35 @@ ATOMIC_OPS(add, +)
 ATOMIC_OPS(sub, -)
 
 #ifdef __OPTIMIZE__
-#define __ia64_atomic_const(i)  __builtin_constant_p(i) ?               \
+#define __ia64_atomic_const(i)                                          \
+        static const int __ia64_atomic_p = __builtin_constant_p(i) ?    \
                 ((i) == 1 || (i) == 4 || (i) == 8 || (i) == 16 ||       \
-                 (i) == -1 || (i) == -4 || (i) == -8 || (i) == -16) : 0
+                 (i) == -1 || (i) == -4 || (i) == -8 || (i) == -16) : 0;\
+        __ia64_atomic_p
+#else
+#define __ia64_atomic_const(i)  0
+#endif
 
-#define atomic_add_return(i, v)                                         \
+#define atomic_add_return(i,v)                                          \
 ({                                                                      \
-        int __i = (i);                                                  \
-        static const int __ia64_atomic_p = __ia64_atomic_const(i);      \
-        __ia64_atomic_p ? ia64_fetch_and_add(__i, &(v)->counter) :      \
-                                ia64_atomic_add(__i, v);                \
+        int __ia64_aar_i = (i);                                         \
+        __ia64_atomic_const(i)                                          \
+                ? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter)       \
+                : ia64_atomic_add(__ia64_aar_i, v);                     \
 })
 
-#define atomic_sub_return(i, v)                                         \
+#define atomic_sub_return(i,v)                                          \
 ({                                                                      \
-        int __i = (i);                                                  \
-        static const int __ia64_atomic_p = __ia64_atomic_const(i);      \
-        __ia64_atomic_p ? ia64_fetch_and_add(-__i, &(v)->counter) :     \
-                                ia64_atomic_sub(__i, v);                \
+        int __ia64_asr_i = (i);                                         \
+        __ia64_atomic_const(i)                                          \
+                ? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter)      \
+                : ia64_atomic_sub(__ia64_asr_i, v);                     \
 })
-#else
-#define atomic_add_return(i, v) ia64_atomic_add(i, v)
-#define atomic_sub_return(i, v) ia64_atomic_sub(i, v)
-#endif
 
 #define atomic_fetch_add(i,v)                                           \
 ({                                                                      \
         int __ia64_aar_i = (i);                                         \
-        (__builtin_constant_p(i)                                        \
-         && (   (__ia64_aar_i ==  1) || (__ia64_aar_i ==   4)           \
-             || (__ia64_aar_i ==  8) || (__ia64_aar_i ==  16)           \
-             || (__ia64_aar_i == -1) || (__ia64_aar_i ==  -4)           \
-             || (__ia64_aar_i == -8) || (__ia64_aar_i == -16)))         \
+        __ia64_atomic_const(i)                                          \
                 ? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq)       \
                 : ia64_atomic_fetch_add(__ia64_aar_i, v);               \
 })
@@ -105,11 +102,7 @@ ATOMIC_OPS(sub, -)
 #define atomic_fetch_sub(i,v)                                           \
 ({                                                                      \
         int __ia64_asr_i = (i);                                         \
-        (__builtin_constant_p(i)                                        \
-         && (   (__ia64_asr_i ==   1) || (__ia64_asr_i ==   4)          \
-             || (__ia64_asr_i ==   8) || (__ia64_asr_i ==  16)          \
-             || (__ia64_asr_i ==  -1) || (__ia64_asr_i ==  -4)          \
-             || (__ia64_asr_i ==  -8) || (__ia64_asr_i == -16)))        \
+        __ia64_atomic_const(i)                                          \
                 ? ia64_fetchadd(-__ia64_asr_i, &(v)->counter, acq)      \
                 : ia64_atomic_fetch_sub(__ia64_asr_i, v);               \
 })
@@ -170,11 +163,7 @@ ATOMIC64_OPS(sub, -)
 #define atomic64_add_return(i,v)                                        \
 ({                                                                      \
         long __ia64_aar_i = (i);                                        \
-        (__builtin_constant_p(i)                                        \
-         && (   (__ia64_aar_i ==  1) || (__ia64_aar_i ==   4)           \
-             || (__ia64_aar_i ==  8) || (__ia64_aar_i ==  16)           \
-             || (__ia64_aar_i == -1) || (__ia64_aar_i ==  -4)           \
-             || (__ia64_aar_i == -8) || (__ia64_aar_i == -16)))         \
+        __ia64_atomic_const(i)                                          \
                 ? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter)       \
                 : ia64_atomic64_add(__ia64_aar_i, v);                   \
 })
@@ -182,11 +171,7 @@ ATOMIC64_OPS(sub, -)
 #define atomic64_sub_return(i,v)                                        \
 ({                                                                      \
         long __ia64_asr_i = (i);                                        \
-        (__builtin_constant_p(i)                                        \
-         && (   (__ia64_asr_i ==   1) || (__ia64_asr_i ==   4)          \
-             || (__ia64_asr_i ==   8) || (__ia64_asr_i ==  16)          \
-             || (__ia64_asr_i ==  -1) || (__ia64_asr_i ==  -4)          \
-             || (__ia64_asr_i ==  -8) || (__ia64_asr_i == -16)))        \
+        __ia64_atomic_const(i)                                          \
                 ? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter)      \
                 : ia64_atomic64_sub(__ia64_asr_i, v);                   \
 })
@@ -194,11 +179,7 @@ ATOMIC64_OPS(sub, -)
 #define atomic64_fetch_add(i,v)                                         \
 ({                                                                      \
         long __ia64_aar_i = (i);                                        \
-        (__builtin_constant_p(i)                                        \
-         && (   (__ia64_aar_i ==  1) || (__ia64_aar_i ==   4)           \
-             || (__ia64_aar_i ==  8) || (__ia64_aar_i ==  16)           \
-             || (__ia64_aar_i == -1) || (__ia64_aar_i ==  -4)           \
-             || (__ia64_aar_i == -8) || (__ia64_aar_i == -16)))         \
+        __ia64_atomic_const(i)                                          \
                 ? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq)       \
                 : ia64_atomic64_fetch_add(__ia64_aar_i, v);             \
 })
@@ -206,11 +187,7 @@ ATOMIC64_OPS(sub, -)
 #define atomic64_fetch_sub(i,v)                                         \
 ({                                                                      \
         long __ia64_asr_i = (i);                                        \
-        (__builtin_constant_p(i)                                        \
-         && (   (__ia64_asr_i ==   1) || (__ia64_asr_i ==   4)          \
-             || (__ia64_asr_i ==   8) || (__ia64_asr_i ==  16)          \
-             || (__ia64_asr_i ==  -1) || (__ia64_asr_i ==  -4)          \
-             || (__ia64_asr_i ==  -8) || (__ia64_asr_i == -16)))        \
+        __ia64_atomic_const(i)                                          \
                 ? ia64_fetchadd(-__ia64_asr_i, &(v)->counter, acq)      \
                 : ia64_atomic64_fetch_sub(__ia64_asr_i, v);             \
 })
diff --git a/arch/ia64/include/asm/bug.h b/arch/ia64/include/asm/bug.h
index bd3eeb8d1cfa..66b37a532765 100644
--- a/arch/ia64/include/asm/bug.h
+++ b/arch/ia64/include/asm/bug.h
@@ -4,7 +4,11 @@
 
 #ifdef CONFIG_BUG
 #define ia64_abort()    __builtin_trap()
-#define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); ia64_abort(); } while (0)
+#define BUG() do {                                              \
+        printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__);   \
+        barrier_before_unreachable();                           \
+        ia64_abort();                                           \
+} while (0)
 
 /* should this BUG be made generic? */
 #define HAVE_ARCH_BUG
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 0b4c65a1af25..498f3da3f225 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -41,7 +41,6 @@ ifneq ($(CONFIG_IA64_ESI),)
 obj-y                           += esi_stub.o   # must be in kernel proper
 endif
 obj-$(CONFIG_INTEL_IOMMU)       += pci-dma.o
-obj-$(CONFIG_SWIOTLB)           += pci-swiotlb.o
 
 obj-$(CONFIG_BINFMT_ELF)        += elfcore.o
 
diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c
index 85bba43e7d5d..8b5b8e6bc9d9 100644
--- a/arch/ia64/kernel/err_inject.c
+++ b/arch/ia64/kernel/err_inject.c
@@ -117,7 +117,7 @@ store_call_start(struct device *dev, struct device_attribute *attr,
 
 #ifdef ERR_INJ_DEBUG
         printk(KERN_DEBUG "Returns: status=%d,\n", (int)status[cpu]);
-        printk(KERN_DEBUG "capapbilities=%lx,\n", capabilities[cpu]);
+        printk(KERN_DEBUG "capabilities=%lx,\n", capabilities[cpu]);
         printk(KERN_DEBUG "resources=%lx\n", resources[cpu]);
 #endif
         return size;
@@ -142,7 +142,7 @@ store_virtual_to_phys(struct device *dev, struct device_attribute *attr,
         u64 virt_addr=simple_strtoull(buf, NULL, 16);
         int ret;
 
-        ret = get_user_pages(virt_addr, 1, FOLL_WRITE, NULL, NULL);
+        ret = get_user_pages_fast(virt_addr, 1, FOLL_WRITE, NULL);
         if (ret<=0) {
 #ifdef ERR_INJ_DEBUG
                 printk("Virtual address %lx is not existing.\n",virt_addr);
diff --git a/arch/ia64/scripts/unwcheck.py b/arch/ia64/scripts/unwcheck.py
index 89f3a1480a63..c55276e31b6b 100644
--- a/arch/ia64/scripts/unwcheck.py
+++ b/arch/ia64/scripts/unwcheck.py
@@ -16,7 +16,7 @@ import re
 import sys
 
 if len(sys.argv) != 2:
-    print "Usage: %s FILE" % sys.argv[0]
+    print("Usage: %s FILE" % sys.argv[0])
     sys.exit(2)
 
 readelf = os.getenv("READELF", "readelf")
@@ -29,7 +29,7 @@ def check_func (func, slots, rlen_sum):
         global num_errors
         num_errors += 1
         if not func: func = "[%#x-%#x]" % (start, end)
-        print "ERROR: %s: %lu slots, total region length = %lu" % (func, slots, rlen_sum)
+        print("ERROR: %s: %lu slots, total region length = %lu" % (func, slots, rlen_sum))
     return
 
 num_funcs = 0
@@ -43,23 +43,23 @@ for line in os.popen("%s -u %s" % (readelf, sys.argv[1])):
         check_func(func, slots, rlen_sum)
 
         func  = m.group(1)
-        start = long(m.group(2), 16)
-        end   = long(m.group(3), 16)
+        start = int(m.group(2), 16)
+        end   = int(m.group(3), 16)
         slots = 3 * (end - start) / 16
-        rlen_sum = 0L
+        rlen_sum = 0
         num_funcs += 1
     else:
         m = rlen_pattern.match(line)
         if m:
-            rlen_sum += long(m.group(1))
+            rlen_sum += int(m.group(1))
 check_func(func, slots, rlen_sum)
 
 if num_errors == 0:
-    print "No errors detected in %u functions." % num_funcs
+    print("No errors detected in %u functions." % num_funcs)
 else:
     if num_errors > 1:
         err="errors"
     else:
         err="error"
-    print "%u %s detected in %u functions." % (num_errors, err, num_funcs)
+    print("%u %s detected in %u functions." % (num_errors, err, num_funcs))
     sys.exit(1)
diff --git a/arch/m68k/include/asm/bug.h b/arch/m68k/include/asm/bug.h
index b7e2bf1ba4a6..275dca1435bf 100644
--- a/arch/m68k/include/asm/bug.h
+++ b/arch/m68k/include/asm/bug.h
@@ -8,16 +8,19 @@
 #ifndef CONFIG_SUN3
 #define BUG() do { \
         pr_crit("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+        barrier_before_unreachable(); \
         __builtin_trap(); \
 } while (0)
 #else
 #define BUG() do { \
         pr_crit("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+        barrier_before_unreachable(); \
         panic("BUG!"); \
 } while (0)
 #endif
 #else
 #define BUG() do { \
+        barrier_before_unreachable(); \
         __builtin_trap(); \
 } while (0)
 #endif
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 4f798aa671dd..3817a3e2146c 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -24,6 +24,7 @@ config MICROBLAZE
         select HAVE_FTRACE_MCOUNT_RECORD
         select HAVE_FUNCTION_GRAPH_TRACER
         select HAVE_FUNCTION_TRACER
+        select NO_BOOTMEM
         select HAVE_MEMBLOCK
         select HAVE_MEMBLOCK_NODE_MAP
         select HAVE_OPROFILE
diff --git a/arch/microblaze/Kconfig.platform b/arch/microblaze/Kconfig.platform
index 6996f397c16c..f7f1739c11b9 100644
--- a/arch/microblaze/Kconfig.platform
+++ b/arch/microblaze/Kconfig.platform
@@ -8,7 +8,6 @@ menu "Platform options"
 
 config OPT_LIB_FUNCTION
         bool "Optimalized lib function"
-        depends on CPU_LITTLE_ENDIAN
         default y
         help
           Allows turn on optimalized library function (memcpy and memmove).
@@ -21,6 +20,7 @@ config OPT_LIB_FUNCTION
 config OPT_LIB_ASM
         bool "Optimalized lib function ASM"
         depends on OPT_LIB_FUNCTION && (XILINX_MICROBLAZE0_USE_BARREL = 1)
+        depends on CPU_BIG_ENDIAN
         default n
         help
           Allows turn on optimalized library function (memcpy and memmove).
diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
index be84a4d3917f..7c968c1d1729 100644
--- a/arch/microblaze/include/asm/setup.h
+++ b/arch/microblaze/include/asm/setup.h
@@ -44,7 +44,6 @@ void machine_shutdown(void);
 void machine_halt(void);
 void machine_power_off(void);
 
-extern void *alloc_maybe_bootmem(size_t size, gfp_t mask);
 extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask);
 
 # endif /* __ASSEMBLY__ */
diff --git a/arch/microblaze/lib/fastcopy.S b/arch/microblaze/lib/fastcopy.S
index 62021d7e249e..fdc48bb065d8 100644
--- a/arch/microblaze/lib/fastcopy.S
+++ b/arch/microblaze/lib/fastcopy.S
@@ -29,10 +29,6 @@
  *      between mem locations with size of xfer spec'd in bytes
  */
 
-#ifdef __MICROBLAZEEL__
-#error Microblaze LE not support ASM optimized lib func. Disable OPT_LIB_ASM.
-#endif
-
 #include <linux/linkage.h>
         .text
         .globl  memcpy
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 434639f9a3a6..df6de7ccdc2e 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -32,9 +32,6 @@ int mem_init_done;
 #ifndef CONFIG_MMU
 unsigned int __page_offset;
 EXPORT_SYMBOL(__page_offset);
-
-#else
-static int init_bootmem_done;
 #endif /* CONFIG_MMU */
 
 char *klimit = _end;
@@ -117,7 +114,6 @@ static void __init paging_init(void)
 
 void __init setup_memory(void)
 {
-        unsigned long map_size;
         struct memblock_region *reg;
 
 #ifndef CONFIG_MMU
@@ -174,17 +170,6 @@ void __init setup_memory(void)
         pr_info("%s: max_low_pfn: %#lx\n", __func__, max_low_pfn);
         pr_info("%s: max_pfn: %#lx\n", __func__, max_pfn);
 
-        /*
-         * Find an area to use for the bootmem bitmap.
-         * We look for the first area which is at least
-         * 128kB in length (128kB is enough for a bitmap
-         * for 4GB of memory, using 4kB pages), plus 1 page
-         * (in case the address isn't page-aligned).
-         */
-        map_size = init_bootmem_node(NODE_DATA(0),
-                PFN_UP(TOPHYS((u32)klimit)), min_low_pfn, max_low_pfn);
-        memblock_reserve(PFN_UP(TOPHYS((u32)klimit)) << PAGE_SHIFT, map_size);
-
         /* Add active regions with valid PFNs */
         for_each_memblock(memory, reg) {
                 unsigned long start_pfn, end_pfn;
@@ -196,32 +181,9 @@ void __init setup_memory(void)
                                   &memblock.memory, 0);
         }
 
-        /* free bootmem is whole main memory */
-        free_bootmem_with_active_regions(0, max_low_pfn);
-
-        /* reserve allocate blocks */
-        for_each_memblock(reserved, reg) {
-                unsigned long top = reg->base + reg->size - 1;
-
-                pr_debug("reserved - 0x%08x-0x%08x, %lx, %lx\n",
-                         (u32) reg->base, (u32) reg->size, top,
-                                                memory_start + lowmem_size - 1);
-
-                if (top <= (memory_start + lowmem_size - 1)) {
-                        reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
-                } else if (reg->base < (memory_start + lowmem_size - 1)) {
-                        unsigned long trunc_size = memory_start + lowmem_size -
-                                                                reg->base;
-                        reserve_bootmem(reg->base, trunc_size, BOOTMEM_DEFAULT);
-                }
-        }
-
         /* XXX need to clip this if using highmem? */
         sparse_memory_present_with_active_regions(0);
 
-#ifdef CONFIG_MMU
-        init_bootmem_done = 1;
-#endif
         paging_init();
 }
 
@@ -398,30 +360,16 @@ asmlinkage void __init mmu_init(void)
 /* This is only called until mem_init is done. */
 void __init *early_get_page(void)
 {
-        void *p;
-        if (init_bootmem_done) {
-                p = alloc_bootmem_pages(PAGE_SIZE);
-        } else {
-                /*
-                 * Mem start + kernel_tlb -> here is limit
-                 * because of mem mapping from head.S
-                 */
-                p = __va(memblock_alloc_base(PAGE_SIZE, PAGE_SIZE,
-                                        memory_start + kernel_tlb));
-        }
-        return p;
+        /*
+         * Mem start + kernel_tlb -> here is limit
+         * because of mem mapping from head.S
+         */
+        return __va(memblock_alloc_base(PAGE_SIZE, PAGE_SIZE,
+                                memory_start + kernel_tlb));
 }
 
 #endif /* CONFIG_MMU */
 
-void * __ref alloc_maybe_bootmem(size_t size, gfp_t mask)
-{
-        if (mem_init_done)
-                return kmalloc(size, mask);
-        else
-                return alloc_bootmem(size);
-}
-
 void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
 {
         void *p;
diff --git a/arch/mips/ath25/board.c b/arch/mips/ath25/board.c
index 9ab48ff80c1c..6d11ae581ea7 100644
--- a/arch/mips/ath25/board.c
+++ b/arch/mips/ath25/board.c
@@ -135,6 +135,8 @@ int __init ath25_find_config(phys_addr_t base, unsigned long size)
         }
 
         board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
+        if (!board_data)
+                goto error;
         ath25_board.config = (struct ath25_boarddata *)board_data;
         memcpy_fromio(board_data, bcfg, 0x100);
         if (broken_boarddata) {
diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile
index 1bd5c4f00d19..c22da16d67b8 100644
--- a/arch/mips/boot/Makefile
+++ b/arch/mips/boot/Makefile
@@ -126,6 +126,7 @@ $(obj)/vmlinux.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS
 
 quiet_cmd_cpp_its_S = ITS     $@
       cmd_cpp_its_S = $(CPP) $(cpp_flags) -P -C -o $@ $< \
+                        -D__ASSEMBLY__ \
                         -DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
                         -DVMLINUX_BINARY="\"$(3)\"" \
                         -DVMLINUX_COMPRESSION="\"$(2)\"" \
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 5b3a3f6a9ad3..d99f5242169e 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -2277,6 +2277,8 @@ static int __init octeon_irq_init_cib(struct device_node *ciu_node,
         }
 
         host_data = kzalloc(sizeof(*host_data), GFP_KERNEL);
+        if (!host_data)
+                return -ENOMEM;
         raw_spin_lock_init(&host_data->lock);
 
         addr = of_get_address(ciu_node, 0, NULL, NULL);
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 946681db8dc3..9a0fa66b81ac 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -86,7 +86,6 @@ struct compat_flock {
         compat_off_t    l_len;
         s32             l_sysid;
         compat_pid_t    l_pid;
-        short           __unused;
         s32             pad[4];
 };
 
diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c
index 19c88d770054..fcf9af492d60 100644
--- a/arch/mips/kernel/mips-cpc.c
+++ b/arch/mips/kernel/mips-cpc.c
@@ -10,6 +10,8 @@
 
 #include <linux/errno.h>
 #include <linux/percpu.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/spinlock.h>
 
 #include <asm/mips-cps.h>
@@ -22,6 +24,17 @@ static DEFINE_PER_CPU_ALIGNED(unsigned long, cpc_core_lock_flags);
 
 phys_addr_t __weak mips_cpc_default_phys_base(void)
 {
+        struct device_node *cpc_node;
+        struct resource res;
+        int err;
+
+        cpc_node = of_find_compatible_node(of_root, NULL, "mti,mips-cpc");
+        if (cpc_node) {
+                err = of_address_to_resource(cpc_node, 0, &res);
+                if (!err)
+                        return res.start;
+        }
+
         return 0;
 }
 
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 85bc601e9a0d..5f8b0a9e30b3 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -375,6 +375,7 @@ static void __init bootmem_init(void)
         unsigned long reserved_end;
         unsigned long mapstart = ~0UL;
         unsigned long bootmap_size;
+        phys_addr_t ramstart = (phys_addr_t)ULLONG_MAX;
         bool bootmap_valid = false;
         int i;
 
@@ -395,7 +396,8 @@ static void __init bootmem_init(void)
         max_low_pfn = 0;
 
         /*
-         * Find the highest page frame number we have available.
+         * Find the highest page frame number we have available
+         * and the lowest used RAM address
          */
         for (i = 0; i < boot_mem_map.nr_map; i++) {
                 unsigned long start, end;
@@ -407,6 +409,8 @@ static void __init bootmem_init(void)
                 end = PFN_DOWN(boot_mem_map.map[i].addr
                                 + boot_mem_map.map[i].size);
 
+                ramstart = min(ramstart, boot_mem_map.map[i].addr);
+
 #ifndef CONFIG_HIGHMEM
                 /*
                  * Skip highmem here so we get an accurate max_low_pfn if low
@@ -436,6 +440,13 @@ static void __init bootmem_init(void)
                 mapstart = max(reserved_end, start);
         }
 
+        /*
+         * Reserve any memory between the start of RAM and PHYS_OFFSET
+         */
+        if (ramstart > PHYS_OFFSET)
+                add_memory_region(PHYS_OFFSET, ramstart - PHYS_OFFSET,
+                                  BOOT_MEM_RESERVED);
+
         if (min_low_pfn >= max_low_pfn)
                 panic("Incorrect memory mapping !!!");
         if (min_low_pfn > ARCH_PFN_OFFSET) {
@@ -664,9 +675,6 @@ static int __init early_parse_mem(char *p)
 
         add_memory_region(start, size, BOOT_MEM_RAM);
 
-        if (start && start > PHYS_OFFSET)
-                add_memory_region(PHYS_OFFSET, start - PHYS_OFFSET,
-                                BOOT_MEM_RESERVED);
         return 0;
 }
 early_param("mem", early_parse_mem);
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 87dcac2447c8..159e83add4bb 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -168,11 +168,11 @@ static void bmips_prepare_cpus(unsigned int max_cpus)
                 return;
         }
 
-        if (request_irq(IPI0_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
-                        "smp_ipi0", NULL))
+        if (request_irq(IPI0_IRQ, bmips_ipi_interrupt,
+                        IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi0", NULL))
                 panic("Can't request IPI0 interrupt");
-        if (request_irq(IPI1_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
-                        "smp_ipi1", NULL))
+        if (request_irq(IPI1_IRQ, bmips_ipi_interrupt,
+                        IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi1", NULL))
                 panic("Can't request IPI1 interrupt");
 }
 
@@ -572,7 +572,7 @@ asmlinkage void __weak plat_wired_tlb_setup(void)
          */
 }
 
-void __init bmips_cpu_setup(void)
+void bmips_cpu_setup(void)
 {
         void __iomem __maybe_unused *cbr = BMIPS_GET_CBR();
         u32 __maybe_unused cfg;
diff --git a/arch/mips/lantiq/Kconfig b/arch/mips/lantiq/Kconfig
index 692ae85a3e3d..8e3a1fc2bc39 100644
--- a/arch/mips/lantiq/Kconfig
+++ b/arch/mips/lantiq/Kconfig
@@ -13,6 +13,8 @@ choice
 config SOC_AMAZON_SE
         bool "Amazon SE"
         select SOC_TYPE_XWAY
+        select MFD_SYSCON
+        select MFD_CORE
 
 config SOC_XWAY
         bool "XWAY"
diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index 52500d3b7004..e0af39b33e28 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -549,9 +549,9 @@ void __init ltq_soc_init(void)
                 clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(),
                                 ltq_ar9_fpi_hz(), CLOCK_250M);
                 clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
-                clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+                clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0 | PMU_AHBM);
                 clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 0, PMU_USB1_P);
-                clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
+                clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1 | PMU_AHBM);
                 clkdev_add_pmu("1e180000.etop", "switch", 1, 0, PMU_SWITCH);
                 clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
                 clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
@@ -560,7 +560,7 @@ void __init ltq_soc_init(void)
         } else {
                 clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(),
                                 ltq_danube_fpi_hz(), ltq_danube_pp32_hz());
-                clkdev_add_pmu("1f203018.usb2-phy", "ctrl", 1, 0, PMU_USB0);
+                clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0 | PMU_AHBM);
                 clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
                 clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
                 clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
diff --git a/arch/mips/loongson64/Kconfig b/arch/mips/loongson64/Kconfig
index bc2fdbfa8223..72af0c183969 100644
--- a/arch/mips/loongson64/Kconfig
+++ b/arch/mips/loongson64/Kconfig
@@ -7,6 +7,8 @@ choice
 config LEMOTE_FULOONG2E
         bool "Lemote Fuloong(2e) mini-PC"
         select ARCH_SPARSEMEM_ENABLE
+        select ARCH_MIGHT_HAVE_PC_PARPORT
+        select ARCH_MIGHT_HAVE_PC_SERIO
         select CEVT_R4K
         select CSRC_R4K
         select SYS_HAS_CPU_LOONGSON2E
@@ -33,6 +35,8 @@ config LEMOTE_FULOONG2E
 config LEMOTE_MACH2F
         bool "Lemote Loongson 2F family machines"
         select ARCH_SPARSEMEM_ENABLE
+        select ARCH_MIGHT_HAVE_PC_PARPORT
+        select ARCH_MIGHT_HAVE_PC_SERIO
         select BOARD_SCACHE
         select BOOT_ELF32
         select CEVT_R4K if ! MIPS_EXTERNAL_TIMER
@@ -62,6 +66,8 @@ config LEMOTE_MACH2F
 config LOONGSON_MACH3X
         bool "Generic Loongson 3 family machines"
         select ARCH_SPARSEMEM_ENABLE
+        select ARCH_MIGHT_HAVE_PC_PARPORT
+        select ARCH_MIGHT_HAVE_PC_SERIO
         select GENERIC_ISA_DMA_SUPPORT_BROKEN
         select BOOT_ELF32
         select BOARD_SCACHE
diff --git a/arch/mips/ralink/mt7621.c b/arch/mips/ralink/mt7621.c
index 1b274742077d..d2718de60b9b 100644
--- a/arch/mips/ralink/mt7621.c
+++ b/arch/mips/ralink/mt7621.c
@@ -170,6 +170,28 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
         u32 n1;
         u32 rev;
 
+        /* Early detection of CMP support */
+        mips_cm_probe();
+        mips_cpc_probe();
+
+        if (mips_cps_numiocu(0)) {
+                /*
+                 * mips_cm_probe() wipes out bootloader
+                 * config for CM regions and we have to configure them
+                 * again. This SoC cannot talk to pamlbus devices
+                 * witout proper iocu region set up.
+                 *
+                 * FIXME: it would be better to do this with values
+                 * from DT, but we need this very early because
+                 * without this we cannot talk to pretty much anything
+                 * including serial.
+                 */
+                write_gcr_reg0_base(MT7621_PALMBUS_BASE);
+                write_gcr_reg0_mask(~MT7621_PALMBUS_SIZE |
+                                    CM_GCR_REGn_MASK_CMTGT_IOCU0);
+                __sync();
+        }
+
         n0 = __raw_readl(sysc + SYSC_REG_CHIP_NAME0);
         n1 = __raw_readl(sysc + SYSC_REG_CHIP_NAME1);
 
@@ -194,26 +216,6 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 
         rt2880_pinmux_data = mt7621_pinmux_data;
 
-        /* Early detection of CMP support */
-        mips_cm_probe();
-        mips_cpc_probe();
-
-        if (mips_cps_numiocu(0)) {
-                /*
-                 * mips_cm_probe() wipes out bootloader
-                 * config for CM regions and we have to configure them
-                 * again. This SoC cannot talk to pamlbus devices
-                 * witout proper iocu region set up.
-                 *
-                 * FIXME: it would be better to do this with values
-                 * from DT, but we need this very early because
-                 * without this we cannot talk to pretty much anything
-                 * including serial.
-                 */
-                write_gcr_reg0_base(MT7621_PALMBUS_BASE);
-                write_gcr_reg0_mask(~MT7621_PALMBUS_SIZE |
-                                    CM_GCR_REGn_MASK_CMTGT_IOCU0);
-        }
 
         if (!register_cps_smp_ops())
                 return;
diff --git a/arch/mips/ralink/reset.c b/arch/mips/ralink/reset.c
index 64543d66e76b..e9531fea23a2 100644
--- a/arch/mips/ralink/reset.c
+++ b/arch/mips/ralink/reset.c
@@ -96,16 +96,9 @@ static void ralink_restart(char *command)
         unreachable();
 }
 
-static void ralink_halt(void)
-{
-        local_irq_disable();
-        unreachable();
-}
-
 static int __init mips_reboot_setup(void)
 {
         _machine_restart = ralink_restart;
-        _machine_halt = ralink_halt;
 
         return 0;
 }
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 3742508cc534..bd5ce31936f5 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -26,6 +26,7 @@ void flush_user_icache_range_asm(unsigned long, unsigned long);
 void flush_kernel_icache_range_asm(unsigned long, unsigned long);
 void flush_user_dcache_range_asm(unsigned long, unsigned long);
 void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
+void purge_kernel_dcache_range_asm(unsigned long, unsigned long);
 void flush_kernel_dcache_page_asm(void *);
 void flush_kernel_icache_page(void *);
 
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 0e6ab6e4a4e9..2dbe5580a1a4 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -316,6 +316,8 @@ extern int _parisc_requires_coherency;
 #define parisc_requires_coherency()     (0)
 #endif
 
+extern int running_on_qemu;
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ASM_PARISC_PROCESSOR_H */
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 19c0c141bc3f..e3b45546d589 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -465,10 +465,10 @@ EXPORT_SYMBOL(copy_user_page);
 int __flush_tlb_range(unsigned long sid, unsigned long start,
                       unsigned long end)
 {
-        unsigned long flags, size;
+        unsigned long flags;
 
-        size = (end - start);
-        if (size >= parisc_tlb_flush_threshold) {
+        if ((!IS_ENABLED(CONFIG_SMP) || !arch_irqs_disabled()) &&
+            end - start >= parisc_tlb_flush_threshold) {
                 flush_tlb_all();
                 return 1;
         }
@@ -539,13 +539,12 @@ void flush_cache_mm(struct mm_struct *mm)
         struct vm_area_struct *vma;
         pgd_t *pgd;
 
-        /* Flush the TLB to avoid speculation if coherency is required. */
-        if (parisc_requires_coherency())
-                flush_tlb_all();
-
         /* Flushing the whole cache on each cpu takes forever on
            rp3440, etc.  So, avoid it if the mm isn't too big.  */
-        if (mm_total_size(mm) >= parisc_cache_flush_threshold) {
+        if ((!IS_ENABLED(CONFIG_SMP) || !arch_irqs_disabled()) &&
+            mm_total_size(mm) >= parisc_cache_flush_threshold) {
+                if (mm->context)
+                        flush_tlb_all();
                 flush_cache_all();
                 return;
         }
@@ -553,9 +552,9 @@ void flush_cache_mm(struct mm_struct *mm)
         if (mm->context == mfsp(3)) {
                 for (vma = mm->mmap; vma; vma = vma->vm_next) {
                         flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
-                        if ((vma->vm_flags & VM_EXEC) == 0)
-                                continue;
-                        flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
+                        if (vma->vm_flags & VM_EXEC)
+                                flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
+                        flush_tlb_range(vma, vma->vm_start, vma->vm_end);
                 }
                 return;
         }
@@ -573,6 +572,8 @@ void flush_cache_mm(struct mm_struct *mm)
                         pfn = pte_pfn(*ptep);
                         if (!pfn_valid(pfn))
                                 continue;
+                        if (unlikely(mm->context))
+                                flush_tlb_page(vma, addr);
                         __flush_cache_page(vma, addr, PFN_PHYS(pfn));
                 }
         }
@@ -581,30 +582,45 @@ void flush_cache_mm(struct mm_struct *mm)
 void flush_cache_range(struct vm_area_struct *vma,
                 unsigned long start, unsigned long end)
 {
-        BUG_ON(!vma->vm_mm->context);
-
-        /* Flush the TLB to avoid speculation if coherency is required. */
-        if (parisc_requires_coherency())
-                flush_tlb_range(vma, start, end);
+        pgd_t *pgd;
+        unsigned long addr;
 
-        if ((end - start) >= parisc_cache_flush_threshold
-            || vma->vm_mm->context != mfsp(3)) {
+        if ((!IS_ENABLED(CONFIG_SMP) || !arch_irqs_disabled()) &&
+            end - start >= parisc_cache_flush_threshold) {
+                if (vma->vm_mm->context)
+                        flush_tlb_range(vma, start, end);
                 flush_cache_all();
                 return;
         }
 
-        flush_user_dcache_range_asm(start, end);
-        if (vma->vm_flags & VM_EXEC)
-                flush_user_icache_range_asm(start, end);
+        if (vma->vm_mm->context == mfsp(3)) {
+                flush_user_dcache_range_asm(start, end);
+                if (vma->vm_flags & VM_EXEC)
+                        flush_user_icache_range_asm(start, end);
+                flush_tlb_range(vma, start, end);
+                return;
+        }
+
+        pgd = vma->vm_mm->pgd;
+        for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+                unsigned long pfn;
+                pte_t *ptep = get_ptep(pgd, addr);
+                if (!ptep)
+                        continue;
+                pfn = pte_pfn(*ptep);
+                if (pfn_valid(pfn)) {
+                        if (unlikely(vma->vm_mm->context))
+                                flush_tlb_page(vma, addr);
+                        __flush_cache_page(vma, addr, PFN_PHYS(pfn));
+                }
+        }
 }
 
 void
 flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn)
 {
-        BUG_ON(!vma->vm_mm->context);
-
         if (pfn_valid(pfn)) {
-                if (parisc_requires_coherency())
+                if (likely(vma->vm_mm->context))
                         flush_tlb_page(vma, vmaddr);
                 __flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
         }
@@ -613,21 +629,33 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 void flush_kernel_vmap_range(void *vaddr, int size)
 {
         unsigned long start = (unsigned long)vaddr;
+        unsigned long end = start + size;
 
-        if ((unsigned long)size > parisc_cache_flush_threshold)
+        if ((!IS_ENABLED(CONFIG_SMP) || !arch_irqs_disabled()) &&
+            (unsigned long)size >= parisc_cache_flush_threshold) {
+                flush_tlb_kernel_range(start, end);
                 flush_data_cache();
-        else
-                flush_kernel_dcache_range_asm(start, start + size);
+                return;
+        }
+
+        flush_kernel_dcache_range_asm(start, end);
+        flush_tlb_kernel_range(start, end);
 }
 EXPORT_SYMBOL(flush_kernel_vmap_range);
 
 void invalidate_kernel_vmap_range(void *vaddr, int size)
 {
         unsigned long start = (unsigned long)vaddr;
+        unsigned long end = start + size;
 
-        if ((unsigned long)size > parisc_cache_flush_threshold)
+        if ((!IS_ENABLED(CONFIG_SMP) || !arch_irqs_disabled()) &&
+            (unsigned long)size >= parisc_cache_flush_threshold) {
+                flush_tlb_kernel_range(start, end);
                 flush_data_cache();
-        else
-                flush_kernel_dcache_range_asm(start, start + size);
+                return;
+        }
+
+        purge_kernel_dcache_range_asm(start, end);
+        flush_tlb_kernel_range(start, end);
 }
 EXPORT_SYMBOL(invalidate_kernel_vmap_range);
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index bbbe360b458f..fbb4e43fda05 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -138,6 +138,16 @@ $pgt_fill_loop:
         std             %dp,0x18(%r10)
 #endif
 
+#ifdef CONFIG_64BIT
+        /* Get PDCE_PROC for monarch CPU. */
+#define MEM_PDC_LO 0x388
+#define MEM_PDC_HI 0x35C
+        ldw             MEM_PDC_LO(%r0),%r3
+        ldw             MEM_PDC_HI(%r0),%r10
+        depd            %r10, 31, 32, %r3        /* move to upper word */
+#endif
+
+
 #ifdef CONFIG_SMP
         /* Set the smp rendezvous address into page zero.
         ** It would be safer to do this in init_smp_config() but
@@ -196,12 +206,6 @@ common_stext:
         ** Someday, palo might not do this for the Monarch either.
         */
 2:
-#define MEM_PDC_LO 0x388
-#define MEM_PDC_HI 0x35C
-        ldw             MEM_PDC_LO(%r0),%r3
-        ldw             MEM_PDC_HI(%r0),%r6
-        depd            %r6, 31, 32, %r3        /* move to upper word */
-
         mfctl           %cr30,%r6               /* PCX-W2 firmware bug */
 
         ldo             PDC_PSW(%r0),%arg0              /* 21 */
@@ -268,6 +272,8 @@ $install_iva:
 aligned_rfi:
         pcxt_ssm_bug
 
+        copy            %r3, %arg0      /* PDCE_PROC for smp_callin() */
+
         rsm             PSW_SM_QUIET,%r0        /* off troublesome PSW bits */
         /* Don't need NOPs, have 8 compliant insn before rfi */
 
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 2d40c4ff3f69..67b0f7532e83 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -1110,6 +1110,28 @@ ENTRY_CFI(flush_kernel_dcache_range_asm)
         .procend
 ENDPROC_CFI(flush_kernel_dcache_range_asm)
 
+ENTRY_CFI(purge_kernel_dcache_range_asm)
+        .proc
+        .callinfo NO_CALLS
+        .entry
+
+        ldil            L%dcache_stride, %r1
+        ldw             R%dcache_stride(%r1), %r23
+        ldo             -1(%r23), %r21
+        ANDCM           %r26, %r21, %r26
+
+1:      cmpb,COND(<<),n %r26, %r25,1b
+        pdc,m           %r23(%r26)
+
+        sync
+        syncdma
+        bv              %r0(%r2)
+        nop
+        .exit
+
+        .procend
+ENDPROC_CFI(purge_kernel_dcache_range_asm)
+
 ENTRY_CFI(flush_user_icache_range_asm)
         .proc
         .callinfo NO_CALLS
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 30c28ab14540..4065b5e48c9d 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -292,10 +292,15 @@ smp_cpu_init(int cpunum)
  * Slaves start using C here. Indirectly called from smp_slave_stext.
  * Do what start_kernel() and main() do for boot strap processor (aka monarch)
  */
-void __init smp_callin(void)
+void __init smp_callin(unsigned long pdce_proc)
 {
         int slave_id = cpu_now_booting;
 
+#ifdef CONFIG_64BIT
+        WARN_ON(((unsigned long)(PAGE0->mem_pdc_hi) << 32
+                        | PAGE0->mem_pdc) != pdce_proc);
+#endif
+
         smp_cpu_init(slave_id);
         preempt_disable();
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 4b8fd6dc22da..f7e684560186 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -76,10 +76,10 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
         next_tick = cpuinfo->it_value;
 
         /* Calculate how many ticks have elapsed. */
+        now = mfctl(16);
         do {
                 ++ticks_elapsed;
                 next_tick += cpt;
-                now = mfctl(16);
         } while (next_tick - now > cpt);
 
         /* Store (in CR16 cycles) up to when we are accounting right now. */
@@ -103,16 +103,17 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
          * if one or the other wrapped. If "now" is "bigger" we'll end up
          * with a very large unsigned number.
          */
-        while (next_tick - mfctl(16) > cpt)
+        now = mfctl(16);
+        while (next_tick - now > cpt)
                 next_tick += cpt;
 
         /* Program the IT when to deliver the next interrupt.
          * Only bottom 32-bits of next_tick are writable in CR16!
          * Timer interrupt will be delivered at least a few hundred cycles
-         * after the IT fires, so if we are too close (<= 500 cycles) to the
+         * after the IT fires, so if we are too close (<= 8000 cycles) to the
          * next cycle, simply skip it.
          */
-        if (next_tick - mfctl(16) <= 500)
+        if (next_tick - now <= 8000)
                 next_tick += cpt;
         mtctl(next_tick, 16);
 
@@ -248,7 +249,7 @@ static int __init init_cr16_clocksource(void)
          * different sockets, so mark them unstable and lower rating on
          * multi-socket SMP systems.
          */
-        if (num_online_cpus() > 1) {
+        if (num_online_cpus() > 1 && !running_on_qemu) {
                 int cpu;
                 unsigned long cpu0_loc;
                 cpu0_loc = per_cpu(cpu_data, 0).cpu_loc;
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 48f41399fc0b..cab32ee824d2 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -629,7 +629,12 @@ void __init mem_init(void)
 #endif
 
         mem_init_print_info(NULL);
-#ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
+
+#if 0
+        /*
+         * Do not expose the virtual kernel memory layout to userspace.
+         * But keep code for debugging purposes.
+         */
         printk("virtual kernel memory layout:\n"
                "    vmalloc : 0x%px - 0x%px   (%4ld MB)\n"
                "    memory  : 0x%px - 0x%px   (%4ld MB)\n"
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index ef6549e57157..26d5d2a5b8e9 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -101,7 +101,8 @@ $(addprefix $(obj)/,$(zlib-y)): \
 libfdt       := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
 libfdtheader := fdt.h libfdt.h libfdt_internal.h
 
-$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o): \
+$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o \
+        treeboot-akebono.o treeboot-currituck.o treeboot-iss4xx.o): \
         $(addprefix $(obj)/,$(libfdtheader))
 
 src-wlib-y := string.S crt0.S stdio.c decompress.c main.c \
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 30a155c0a6b0..c615abdce119 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -16,6 +16,7 @@
 #define PGD_INDEX_SIZE  (32 - PGDIR_SHIFT)
 
 #define PMD_CACHE_INDEX PMD_INDEX_SIZE
+#define PUD_CACHE_INDEX PUD_INDEX_SIZE
 
 #ifndef __ASSEMBLY__
 #define PTE_TABLE_SIZE  (sizeof(pte_t) << PTE_INDEX_SIZE)
diff --git a/arch/powerpc/include/asm/book3s/64/hash-4k.h b/arch/powerpc/include/asm/book3s/64/hash-4k.h
index 949d691094a4..67c5475311ee 100644
--- a/arch/powerpc/include/asm/book3s/64/hash-4k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-4k.h
@@ -63,7 +63,8 @@ static inline int hash__hugepd_ok(hugepd_t hpd)
  * keeping the prototype consistent across the two formats.
  */
 static inline unsigned long pte_set_hidx(pte_t *ptep, real_pte_t rpte,
-                        unsigned int subpg_index, unsigned long hidx)
+                                         unsigned int subpg_index, unsigned long hidx,
+                                         int offset)
 {
         return (hidx << H_PAGE_F_GIX_SHIFT) &
                 (H_PAGE_F_SECOND | H_PAGE_F_GIX);
diff --git a/arch/powerpc/include/asm/book3s/64/hash-64k.h b/arch/powerpc/include/asm/book3s/64/hash-64k.h
index 338b7da468ce..3bcf269f8f55 100644
--- a/arch/powerpc/include/asm/book3s/64/hash-64k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-64k.h
@@ -45,7 +45,7 @@
  * generic accessors and iterators here
  */
 #define __real_pte __real_pte
-static inline real_pte_t __real_pte(pte_t pte, pte_t *ptep)
+static inline real_pte_t __real_pte(pte_t pte, pte_t *ptep, int offset)
 {
         real_pte_t rpte;
         unsigned long *hidxp;
@@ -59,7 +59,7 @@ static inline real_pte_t __real_pte(pte_t pte, pte_t *ptep)
          */
         smp_rmb();
 
-        hidxp = (unsigned long *)(ptep + PTRS_PER_PTE);
+        hidxp = (unsigned long *)(ptep + offset);
         rpte.hidx = *hidxp;
         return rpte;
 }
@@ -86,9 +86,10 @@ static inline unsigned long __rpte_to_hidx(real_pte_t rpte, unsigned long index)
  * expected to modify the PTE bits accordingly and commit the PTE to memory.
  */
 static inline unsigned long pte_set_hidx(pte_t *ptep, real_pte_t rpte,
-                unsigned int subpg_index, unsigned long hidx)
+                                         unsigned int subpg_index,
+                                         unsigned long hidx, int offset)
 {
-        unsigned long *hidxp = (unsigned long *)(ptep + PTRS_PER_PTE);
+        unsigned long *hidxp = (unsigned long *)(ptep + offset);
 
         rpte.hidx &= ~HIDX_BITS(0xfUL, subpg_index);
         *hidxp = rpte.hidx  | HIDX_BITS(HIDX_SHIFT_BY_ONE(hidx), subpg_index);
@@ -140,13 +141,18 @@ static inline int hash__remap_4k_pfn(struct vm_area_struct *vma, unsigned long a
 }
 
 #define H_PTE_TABLE_SIZE        PTE_FRAG_SIZE
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined (CONFIG_HUGETLB_PAGE)
 #define H_PMD_TABLE_SIZE        ((sizeof(pmd_t) << PMD_INDEX_SIZE) + \
                                  (sizeof(unsigned long) << PMD_INDEX_SIZE))
 #else
 #define H_PMD_TABLE_SIZE        (sizeof(pmd_t) << PMD_INDEX_SIZE)
 #endif
+#ifdef CONFIG_HUGETLB_PAGE
+#define H_PUD_TABLE_SIZE        ((sizeof(pud_t) << PUD_INDEX_SIZE) +    \
+                                 (sizeof(unsigned long) << PUD_INDEX_SIZE))
+#else
 #define H_PUD_TABLE_SIZE        (sizeof(pud_t) << PUD_INDEX_SIZE)
+#endif
 #define H_PGD_TABLE_SIZE        (sizeof(pgd_t) << PGD_INDEX_SIZE)
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index 0920eff731b3..935adcd92a81 100644
--- a/arch/powerpc/include/asm/book3s/64/hash.h
+++ b/arch/powerpc/include/asm/book3s/64/hash.h
@@ -23,7 +23,8 @@
                                  H_PUD_INDEX_SIZE + H_PGD_INDEX_SIZE + PAGE_SHIFT)
 #define H_PGTABLE_RANGE         (ASM_CONST(1) << H_PGTABLE_EADDR_SIZE)
 
-#if defined(CONFIG_TRANSPARENT_HUGEPAGE) &&  defined(CONFIG_PPC_64K_PAGES)
+#if (defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLB_PAGE)) && \
+        defined(CONFIG_PPC_64K_PAGES)
 /*
  * only with hash 64k we need to use the second half of pmd page table
  * to store pointer to deposited pgtable_t
@@ -33,6 +34,16 @@
 #define H_PMD_CACHE_INDEX       H_PMD_INDEX_SIZE
 #endif
 /*
+ * We store the slot details in the second half of page table.
+ * Increase the pud level table so that hugetlb ptes can be stored
+ * at pud level.
+ */
+#if defined(CONFIG_HUGETLB_PAGE) &&  defined(CONFIG_PPC_64K_PAGES)
+#define H_PUD_CACHE_INDEX       (H_PUD_INDEX_SIZE + 1)
+#else
+#define H_PUD_CACHE_INDEX       (H_PUD_INDEX_SIZE)
+#endif
+/*
  * Define the address range of the kernel non-linear virtual area
  */
 #define H_KERN_VIRT_START ASM_CONST(0xD000000000000000)
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index 1fcfa425cefa..4746bc68d446 100644
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -73,10 +73,16 @@ static inline void radix__pgd_free(struct mm_struct *mm, pgd_t *pgd)
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
+        pgd_t *pgd;
+
         if (radix_enabled())
                 return radix__pgd_alloc(mm);
-        return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
-                pgtable_gfp_flags(mm, GFP_KERNEL));
+
+        pgd = kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
+                               pgtable_gfp_flags(mm, GFP_KERNEL));
+        memset(pgd, 0, PGD_TABLE_SIZE);
+
+        return pgd;
 }
 
 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
@@ -93,13 +99,13 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
 
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
-        return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
+        return kmem_cache_alloc(PGT_CACHE(PUD_CACHE_INDEX),
                 pgtable_gfp_flags(mm, GFP_KERNEL));
 }
 
 static inline void pud_free(struct mm_struct *mm, pud_t *pud)
 {
-        kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud);
+        kmem_cache_free(PGT_CACHE(PUD_CACHE_INDEX), pud);
 }
 
 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
@@ -115,7 +121,7 @@ static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
          * ahead and flush the page walk cache
          */
         flush_tlb_pgtable(tlb, address);
-        pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE);
+        pgtable_free_tlb(tlb, pud, PUD_CACHE_INDEX);
 }
 
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 51017726d495..a6b9f1d74600 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -232,11 +232,13 @@ extern unsigned long __pmd_index_size;
 extern unsigned long __pud_index_size;
 extern unsigned long __pgd_index_size;
 extern unsigned long __pmd_cache_index;
+extern unsigned long __pud_cache_index;
 #define PTE_INDEX_SIZE  __pte_index_size
 #define PMD_INDEX_SIZE  __pmd_index_size
 #define PUD_INDEX_SIZE  __pud_index_size
 #define PGD_INDEX_SIZE  __pgd_index_size
 #define PMD_CACHE_INDEX __pmd_cache_index
+#define PUD_CACHE_INDEX __pud_cache_index
 /*
  * Because of use of pte fragments and THP, size of page table
  * are not always derived out of index size above.
@@ -348,7 +350,7 @@ extern unsigned long pci_io_base;
  */
 #ifndef __real_pte
 
-#define __real_pte(e,p)         ((real_pte_t){(e)})
+#define __real_pte(e, p, o)             ((real_pte_t){(e)})
 #define __rpte_to_pte(r)        ((r).pte)
 #define __rpte_to_hidx(r,index) (pte_val(__rpte_to_pte(r)) >> H_PAGE_F_GIX_SHIFT)
 
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 176dfb73d42c..471b2274fbeb 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -645,7 +645,7 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
                                           EXC_HV, SOFTEN_TEST_HV, bitmask)
 
 #define MASKABLE_RELON_EXCEPTION_HV_OOL(vec, label, bitmask)            \
-        MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_NOTEST_HV, vec, bitmask);\
+        MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_HV, vec, bitmask);\
         EXCEPTION_RELON_PROLOG_PSERIES_1(label, EXC_HV)
 
 /*
diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h
index 511acfd7ab0d..535add3f7791 100644
--- a/arch/powerpc/include/asm/firmware.h
+++ b/arch/powerpc/include/asm/firmware.h
@@ -52,7 +52,7 @@
 #define FW_FEATURE_TYPE1_AFFINITY ASM_CONST(0x0000000100000000)
 #define FW_FEATURE_PRRN         ASM_CONST(0x0000000200000000)
 #define FW_FEATURE_DRMEM_V2     ASM_CONST(0x0000000400000000)
-#define FW_FEATURE_DRC_INFO     ASM_CONST(0x0000000400000000)
+#define FW_FEATURE_DRC_INFO     ASM_CONST(0x0000000800000000)
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index 88e5e8f17e98..855e17d158b1 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -30,6 +30,16 @@
 #define PACA_IRQ_PMI            0x40
 
 /*
+ * Some soft-masked interrupts must be hard masked until they are replayed
+ * (e.g., because the soft-masked handler does not clear the exception).
+ */
+#ifdef CONFIG_PPC_BOOK3S
+#define PACA_IRQ_MUST_HARD_MASK (PACA_IRQ_EE|PACA_IRQ_PMI)
+#else
+#define PACA_IRQ_MUST_HARD_MASK (PACA_IRQ_EE)
+#endif
+
+/*
  * flags for paca->irq_soft_mask
  */
 #define IRQS_ENABLED            0
@@ -244,7 +254,7 @@ static inline bool lazy_irq_pending(void)
 static inline void may_hard_irq_enable(void)
 {
         get_paca()->irq_happened &= ~PACA_IRQ_HARD_DIS;
-        if (!(get_paca()->irq_happened & PACA_IRQ_EE))
+        if (!(get_paca()->irq_happened & PACA_IRQ_MUST_HARD_MASK))
                 __hard_irq_enable();
 }
 
diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index 9dcbfa6bbb91..d8b1e8e7e035 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -140,6 +140,12 @@ static inline bool kdump_in_progress(void)
         return false;
 }
 
+static inline void crash_ipi_callback(struct pt_regs *regs) { }
+
+static inline void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *))
+{
+}
+
 #endif /* CONFIG_KEXEC_CORE */
 #endif /* ! __ASSEMBLY__ */
 #endif /* __KERNEL__ */
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 504a3c36ce5c..03bbd1149530 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -24,6 +24,7 @@ extern int icache_44x_need_flush;
 #define PGD_INDEX_SIZE  (32 - PGDIR_SHIFT)
 
 #define PMD_CACHE_INDEX PMD_INDEX_SIZE
+#define PUD_CACHE_INDEX PUD_INDEX_SIZE
 
 #ifndef __ASSEMBLY__
 #define PTE_TABLE_SIZE  (sizeof(pte_t) << PTE_INDEX_SIZE)
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index abddf5830ad5..5c5f75d005ad 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -27,6 +27,7 @@
 #else
 #define PMD_CACHE_INDEX PMD_INDEX_SIZE
 #endif
+#define PUD_CACHE_INDEX PUD_INDEX_SIZE
 
 /*
  * Define the address range of the kernel non-linear virtual area
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h
index 88187c285c70..9f421641a35c 100644
--- a/arch/powerpc/include/asm/topology.h
+++ b/arch/powerpc/include/asm/topology.h
@@ -44,6 +44,11 @@ extern int sysfs_add_device_to_node(struct device *dev, int nid);
 extern void sysfs_remove_device_from_node(struct device *dev, int nid);
 extern int numa_update_cpu_topology(bool cpus_locked);
 
+static inline void update_numa_cpu_lookup_table(unsigned int cpu, int node)
+{
+        numa_cpu_lookup_table[cpu] = node;
+}
+
 static inline int early_cpu_to_node(int cpu)
 {
         int nid;
@@ -76,12 +81,16 @@ static inline int numa_update_cpu_topology(bool cpus_locked)
 {
         return 0;
 }
+
+static inline void update_numa_cpu_lookup_table(unsigned int cpu, int node) {}
+
 #endif /* CONFIG_NUMA */
 
 #if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR)
 extern int start_topology_update(void);
 extern int stop_topology_update(void);
 extern int prrn_is_enabled(void);
+extern int find_and_online_cpu_nid(int cpu);
 #else
 static inline int start_topology_update(void)
 {
@@ -95,6 +104,10 @@ static inline int prrn_is_enabled(void)
 {
         return 0;
 }
+static inline int find_and_online_cpu_nid(int cpu)
+{
+        return 0;
+}
 #endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */
 
 #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_NEED_MULTIPLE_NODES)
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index beea2182d754..0c0b66fc5bfb 100644
--- a/arch/powerpc/kernel/eeh_driver.c
+++ b/arch/powerpc/kernel/eeh_driver.c
@@ -384,7 +384,8 @@ static void *eeh_report_resume(void *data, void *userdata)
         eeh_pcid_put(dev);
         pci_uevent_ers(dev, PCI_ERS_RESULT_RECOVERED);
 #ifdef CONFIG_PCI_IOV
-        eeh_ops->notify_resume(eeh_dev_to_pdn(edev));
+        if (eeh_ops->notify_resume && eeh_dev_to_pdn(edev))
+                eeh_ops->notify_resume(eeh_dev_to_pdn(edev));
 #endif
         return NULL;
 }
diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index ee832d344a5a..9b6e653e501a 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -943,6 +943,8 @@ kernel_dbg_exc:
 /*
  * An interrupt came in while soft-disabled; We mark paca->irq_happened
  * accordingly and if the interrupt is level sensitive, we hard disable
+ * hard disable (full_mask) corresponds to PACA_IRQ_MUST_HARD_MASK, so
+ * keep these in synch.
  */
 
 .macro masked_interrupt_book3e paca_irq full_mask
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 243d072a225a..3ac87e53b3da 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1426,7 +1426,7 @@ EXC_COMMON_BEGIN(soft_nmi_common)
  *   triggered and won't automatically refire.
  * - If it was a HMI we return immediately since we handled it in realmode
  *   and it won't refire.
- * - else we hard disable and return.
+ * - Else it is one of PACA_IRQ_MUST_HARD_MASK, so hard disable and return.
  * This is called with r10 containing the value to OR to the paca field.
  */
 #define MASKED_INTERRUPT(_H)                            \
@@ -1441,8 +1441,8 @@ masked_##_H##interrupt:					\
         ori     r10,r10,0xffff;                         \
         mtspr   SPRN_DEC,r10;                           \
         b       MASKED_DEC_HANDLER_LABEL;               \
-1:      andi.   r10,r10,(PACA_IRQ_DBELL|PACA_IRQ_HMI);  \
-        bne     2f;                                     \
+1:      andi.   r10,r10,PACA_IRQ_MUST_HARD_MASK;        \
+        beq     2f;                                     \
         mfspr   r10,SPRN_##_H##SRR1;                    \
         xori    r10,r10,MSR_EE; /* clear MSR_EE */      \
         mtspr   SPRN_##_H##SRR1,r10;                    \
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index adf044daafd7..acf4b2e0530c 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -874,7 +874,6 @@ struct ibm_arch_vec __cacheline_aligned ibm_architecture_vec = {
                 .mmu = 0,
                 .hash_ext = 0,
                 .radix_ext = 0,
-                .byte22 = OV5_FEAT(OV5_DRC_INFO),
         },
 
         /* option vector 6: IBM PAPR hints */
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 5a8bfee6e187..04d0bbd7a1dd 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -788,7 +788,8 @@ static int register_cpu_online(unsigned int cpu)
         if (cpu_has_feature(CPU_FTR_PPCAS_ARCH_V2))
                 device_create_file(s, &dev_attr_pir);
 
-        if (cpu_has_feature(CPU_FTR_ARCH_206))
+        if (cpu_has_feature(CPU_FTR_ARCH_206) &&
+                !firmware_has_feature(FW_FEATURE_LPAR))
                 device_create_file(s, &dev_attr_tscr);
 #endif /* CONFIG_PPC64 */
 
@@ -873,7 +874,8 @@ static int unregister_cpu_online(unsigned int cpu)
         if (cpu_has_feature(CPU_FTR_PPCAS_ARCH_V2))
                 device_remove_file(s, &dev_attr_pir);
 
-        if (cpu_has_feature(CPU_FTR_ARCH_206))
+        if (cpu_has_feature(CPU_FTR_ARCH_206) &&
+                !firmware_has_feature(FW_FEATURE_LPAR))
                 device_remove_file(s, &dev_attr_tscr);
 #endif /* CONFIG_PPC64 */
 
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index 0c854816e653..5cb4e4687107 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -195,6 +195,12 @@ static void kvmppc_pte_free(pte_t *ptep)
         kmem_cache_free(kvm_pte_cache, ptep);
 }
 
+/* Like pmd_huge() and pmd_large(), but works regardless of config options */
+static inline int pmd_is_leaf(pmd_t pmd)
+{
+        return !!(pmd_val(pmd) & _PAGE_PTE);
+}
+
 static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa,
                              unsigned int level, unsigned long mmu_seq)
 {
@@ -219,7 +225,7 @@ static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa,
         else
                 new_pmd = pmd_alloc_one(kvm->mm, gpa);
 
-        if (level == 0 && !(pmd && pmd_present(*pmd)))
+        if (level == 0 && !(pmd && pmd_present(*pmd) && !pmd_is_leaf(*pmd)))
                 new_ptep = kvmppc_pte_alloc();
 
         /* Check if we might have been invalidated; let the guest retry if so */
@@ -244,12 +250,30 @@ static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa,
                 new_pmd = NULL;
         }
         pmd = pmd_offset(pud, gpa);
-        if (pmd_large(*pmd)) {
-                /* Someone else has instantiated a large page here; retry */
-                ret = -EAGAIN;
-                goto out_unlock;
-        }
-        if (level == 1 && !pmd_none(*pmd)) {
+        if (pmd_is_leaf(*pmd)) {
+                unsigned long lgpa = gpa & PMD_MASK;
+
+                /*
+                 * If we raced with another CPU which has just put
+                 * a 2MB pte in after we saw a pte page, try again.
+                 */
+                if (level == 0 && !new_ptep) {
+                        ret = -EAGAIN;
+                        goto out_unlock;
+                }
+                /* Valid 2MB page here already, remove it */
+                old = kvmppc_radix_update_pte(kvm, pmdp_ptep(pmd),
+                                              ~0UL, 0, lgpa, PMD_SHIFT);
+                kvmppc_radix_tlbie_page(kvm, lgpa, PMD_SHIFT);
+                if (old & _PAGE_DIRTY) {
+                        unsigned long gfn = lgpa >> PAGE_SHIFT;
+                        struct kvm_memory_slot *memslot;
+                        memslot = gfn_to_memslot(kvm, gfn);
+                        if (memslot && memslot->dirty_bitmap)
+                                kvmppc_update_dirty_map(memslot,
+                                                        gfn, PMD_SIZE);
+                }
+        } else if (level == 1 && !pmd_none(*pmd)) {
                 /*
                  * There's a page table page here, but we wanted
                  * to install a large page.  Tell the caller and let
@@ -412,28 +436,24 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
         } else {
                 page = pages[0];
                 pfn = page_to_pfn(page);
-                if (PageHuge(page)) {
-                        page = compound_head(page);
-                        pte_size <<= compound_order(page);
+                if (PageCompound(page)) {
+                        pte_size <<= compound_order(compound_head(page));
                         /* See if we can insert a 2MB large-page PTE here */
                         if (pte_size >= PMD_SIZE &&
-                            (gpa & PMD_MASK & PAGE_MASK) ==
-                            (hva & PMD_MASK & PAGE_MASK)) {
+                            (gpa & (PMD_SIZE - PAGE_SIZE)) ==
+                            (hva & (PMD_SIZE - PAGE_SIZE))) {
                                 level = 1;
                                 pfn &= ~((PMD_SIZE >> PAGE_SHIFT) - 1);
                         }
                 }
                 /* See if we can provide write access */
                 if (writing) {
-                        /*
-                         * We assume gup_fast has set dirty on the host PTE.
-                         */
                         pgflags |= _PAGE_WRITE;
                 } else {
                         local_irq_save(flags);
                         ptep = find_current_mm_pte(current->mm->pgd,
                                                    hva, NULL, NULL);
-                        if (ptep && pte_write(*ptep) && pte_dirty(*ptep))
+                        if (ptep && pte_write(*ptep))
                                 pgflags |= _PAGE_WRITE;
                         local_irq_restore(flags);
                 }
@@ -459,18 +479,15 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
                 pte = pfn_pte(pfn, __pgprot(pgflags));
                 ret = kvmppc_create_pte(kvm, pte, gpa, level, mmu_seq);
         }
-        if (ret == 0 || ret == -EAGAIN)
-                ret = RESUME_GUEST;
 
         if (page) {
-                /*
-                 * We drop pages[0] here, not page because page might
-                 * have been set to the head page of a compound, but
-                 * we have to drop the reference on the correct tail
-                 * page to match the get inside gup()
-                 */
-                put_page(pages[0]);
+                if (!ret && (pgflags & _PAGE_WRITE))
+                        set_page_dirty_lock(page);
+                put_page(page);
         }
+
+        if (ret == 0 || ret == -EAGAIN)
+                ret = RESUME_GUEST;
         return ret;
 }
 
@@ -644,7 +661,7 @@ void kvmppc_free_radix(struct kvm *kvm)
                                 continue;
                         pmd = pmd_offset(pud, 0);
                         for (im = 0; im < PTRS_PER_PMD; ++im, ++pmd) {
-                                if (pmd_huge(*pmd)) {
+                                if (pmd_is_leaf(*pmd)) {
                                         pmd_clear(pmd);
                                         continue;
                                 }
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 89707354c2ef..9cb9448163c4 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2885,7 +2885,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
          */
         trace_hardirqs_on();
 
-        guest_enter();
+        guest_enter_irqoff();
 
         srcu_idx = srcu_read_lock(&vc->kvm->srcu);
 
@@ -2893,8 +2893,6 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
 
         srcu_read_unlock(&vc->kvm->srcu, srcu_idx);
 
-        guest_exit();
-
         trace_hardirqs_off();
         set_irq_happened(trap);
 
@@ -2937,6 +2935,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
         kvmppc_set_host_core(pcpu);
 
         local_irq_enable();
+        guest_exit();
 
         /* Let secondaries go back to the offline loop */
         for (i = 0; i < controlled_threads; ++i) {
@@ -3656,15 +3655,17 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
                 goto up_out;
 
         psize = vma_kernel_pagesize(vma);
-        porder = __ilog2(psize);
 
         up_read(&current->mm->mmap_sem);
 
         /* We can handle 4k, 64k or 16M pages in the VRMA */
-        err = -EINVAL;
-        if (!(psize == 0x1000 || psize == 0x10000 ||
-              psize == 0x1000000))
-                goto out_srcu;
+        if (psize >= 0x1000000)
+                psize = 0x1000000;
+        else if (psize >= 0x10000)
+                psize = 0x10000;
+        else
+                psize = 0x1000;
+        porder = __ilog2(psize);
 
         senc = slb_pgsize_encoding(psize);
         kvm->arch.vrma_slb_v = senc | SLB_VSID_B_1T |
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index f31f357b8c5a..d33264697a31 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -320,7 +320,6 @@ kvm_novcpu_exit:
         stw     r12, STACK_SLOT_TRAP(r1)
         bl      kvmhv_commence_exit
         nop
-        lwz     r12, STACK_SLOT_TRAP(r1)
         b       kvmhv_switch_to_host
 
 /*
@@ -1220,6 +1219,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
 
 secondary_too_late:
         li      r12, 0
+        stw     r12, STACK_SLOT_TRAP(r1)
         cmpdi   r4, 0
         beq     11f
         stw     r12, VCPU_TRAP(r4)
@@ -1558,12 +1558,12 @@ mc_cont:
 3:      stw     r5,VCPU_SLB_MAX(r9)
 
 guest_bypass:
+        stw     r12, STACK_SLOT_TRAP(r1)
         mr      r3, r12
         /* Increment exit count, poke other threads to exit */
         bl      kvmhv_commence_exit
         nop
         ld      r9, HSTATE_KVM_VCPU(r13)
-        lwz     r12, VCPU_TRAP(r9)
 
         /* Stop others sending VCPU interrupts to this physical CPU */
         li      r0, -1
@@ -1898,6 +1898,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1)
          * POWER7/POWER8 guest -> host partition switch code.
          * We don't have to lock against tlbies but we do
          * have to coordinate the hardware threads.
+         * Here STACK_SLOT_TRAP(r1) contains the trap number.
          */
 kvmhv_switch_to_host:
         /* Secondary threads wait for primary to do partition switch */
@@ -1950,12 +1951,12 @@ BEGIN_FTR_SECTION
 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
 
         /* If HMI, call kvmppc_realmode_hmi_handler() */
+        lwz     r12, STACK_SLOT_TRAP(r1)
         cmpwi   r12, BOOK3S_INTERRUPT_HMI
         bne     27f
         bl      kvmppc_realmode_hmi_handler
         nop
         cmpdi   r3, 0
-        li      r12, BOOK3S_INTERRUPT_HMI
         /*
          * At this point kvmppc_realmode_hmi_handler may have resync-ed
          * the TB, and if it has, we must not subtract the guest timebase
@@ -2008,10 +2009,8 @@ BEGIN_FTR_SECTION
         lwz     r8, KVM_SPLIT_DO_RESTORE(r3)
         cmpwi   r8, 0
         beq     47f
-        stw     r12, STACK_SLOT_TRAP(r1)
         bl      kvmhv_p9_restore_lpcr
         nop
-        lwz     r12, STACK_SLOT_TRAP(r1)
         b       48f
 47:
 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
@@ -2049,6 +2048,7 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_RADIX)
         li      r0, KVM_GUEST_MODE_NONE
         stb     r0, HSTATE_IN_GUEST(r13)
 
+        lwz     r12, STACK_SLOT_TRAP(r1)        /* return trap # in r12 */
         ld      r0, SFS+PPC_LR_STKOFF(r1)
         addi    r1, r1, SFS
         mtlr    r0
diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
index f0f5cd4d2fe7..f9818d7d3381 100644
--- a/arch/powerpc/kvm/book3s_xive.c
+++ b/arch/powerpc/kvm/book3s_xive.c
@@ -188,7 +188,7 @@ static int xive_provision_queue(struct kvm_vcpu *vcpu, u8 prio)
         if (!qpage) {
                 pr_err("Failed to allocate queue %d for VCPU %d\n",
                        prio, xc->server_num);
-                return -ENOMEM;;
+                return -ENOMEM;
         }
         memset(qpage, 0, 1 << xive->q_order);
 
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 403e642c78f5..52c205373986 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -1345,7 +1345,7 @@ static int kvmppc_emulate_mmio_vsx_loadstore(struct kvm_vcpu *vcpu,
 int kvmppc_handle_load128_by2x64(struct kvm_run *run, struct kvm_vcpu *vcpu,
                 unsigned int rt, int is_default_endian)
 {
-        enum emulation_result emulated;
+        enum emulation_result emulated = EMULATE_DONE;
 
         while (vcpu->arch.mmio_vmx_copy_nums) {
                 emulated = __kvmppc_handle_load(run, vcpu, rt, 8,
@@ -1608,7 +1608,9 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
 
         kvm_sigset_deactivate(vcpu);
 
+#ifdef CONFIG_ALTIVEC
 out:
+#endif
         vcpu_put(vcpu);
         return r;
 }
diff --git a/arch/powerpc/mm/drmem.c b/arch/powerpc/mm/drmem.c
index 1604110c4238..3f1803672c9b 100644
--- a/arch/powerpc/mm/drmem.c
+++ b/arch/powerpc/mm/drmem.c
@@ -98,7 +98,7 @@ static void init_drconf_v2_cell(struct of_drconf_cell_v2 *dr_cell,
         dr_cell->base_addr = cpu_to_be64(lmb->base_addr);
         dr_cell->drc_index = cpu_to_be32(lmb->drc_index);
         dr_cell->aa_index = cpu_to_be32(lmb->aa_index);
-        dr_cell->flags = cpu_to_be32(lmb->flags);
+        dr_cell->flags = cpu_to_be32(drmem_lmb_flags(lmb));
 }
 
 static int drmem_update_dt_v2(struct device_node *memory,
@@ -121,7 +121,7 @@ static int drmem_update_dt_v2(struct device_node *memory,
                 }
 
                 if (prev_lmb->aa_index != lmb->aa_index ||
-                    prev_lmb->flags != lmb->flags)
+                    drmem_lmb_flags(prev_lmb) != drmem_lmb_flags(lmb))
                         lmb_sets++;
 
                 prev_lmb = lmb;
@@ -150,7 +150,7 @@ static int drmem_update_dt_v2(struct device_node *memory,
                 }
 
                 if (prev_lmb->aa_index != lmb->aa_index ||
-                    prev_lmb->flags != lmb->flags) {
+                    drmem_lmb_flags(prev_lmb) != drmem_lmb_flags(lmb)) {
                         /* end of one set, start of another */
                         dr_cell->seq_lmbs = cpu_to_be32(seq_lmbs);
                         dr_cell++;
@@ -216,6 +216,8 @@ static void __init __walk_drmem_v1_lmbs(const __be32 *prop, const __be32 *usm,
         u32 i, n_lmbs;
 
         n_lmbs = of_read_number(prop++, 1);
+        if (n_lmbs == 0)
+                return;
 
         for (i = 0; i < n_lmbs; i++) {
                 read_drconf_v1_cell(&lmb, &prop);
@@ -245,6 +247,8 @@ static void __init __walk_drmem_v2_lmbs(const __be32 *prop, const __be32 *usm,
         u32 i, j, lmb_sets;
 
         lmb_sets = of_read_number(prop++, 1);
+        if (lmb_sets == 0)
+                return;
 
         for (i = 0; i < lmb_sets; i++) {
                 read_drconf_v2_cell(&dr_cell, &prop);
@@ -354,6 +358,8 @@ static void __init init_drmem_v1_lmbs(const __be32 *prop)
         struct drmem_lmb *lmb;
 
         drmem_info->n_lmbs = of_read_number(prop++, 1);
+        if (drmem_info->n_lmbs == 0)
+                return;
 
         drmem_info->lmbs = kcalloc(drmem_info->n_lmbs, sizeof(*lmb),
                                    GFP_KERNEL);
@@ -373,6 +379,8 @@ static void __init init_drmem_v2_lmbs(const __be32 *prop)
         int lmb_index;
 
         lmb_sets = of_read_number(prop++, 1);
+        if (lmb_sets == 0)
+                return;
 
         /* first pass, calculate the number of LMBs */
         p = prop;
diff --git a/arch/powerpc/mm/hash64_4k.c b/arch/powerpc/mm/hash64_4k.c
index 5a69b51d08a3..d573d7d07f25 100644
--- a/arch/powerpc/mm/hash64_4k.c
+++ b/arch/powerpc/mm/hash64_4k.c
@@ -55,7 +55,7 @@ int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid,
          * need to add in 0x1 if it's a read-only user page
          */
         rflags = htab_convert_pte_flags(new_pte);
-        rpte = __real_pte(__pte(old_pte), ptep);
+        rpte = __real_pte(__pte(old_pte), ptep, PTRS_PER_PTE);
 
         if (cpu_has_feature(CPU_FTR_NOEXECUTE) &&
             !cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
@@ -117,7 +117,7 @@ repeat:
                         return -1;
                 }
                 new_pte = (new_pte & ~_PAGE_HPTEFLAGS) | H_PAGE_HASHPTE;
-                new_pte |= pte_set_hidx(ptep, rpte, 0, slot);
+                new_pte |= pte_set_hidx(ptep, rpte, 0, slot, PTRS_PER_PTE);
         }
         *ptep = __pte(new_pte & ~H_PAGE_BUSY);
         return 0;
diff --git a/arch/powerpc/mm/hash64_64k.c b/arch/powerpc/mm/hash64_64k.c
index 2253bbc6a599..e601d95c3b20 100644
--- a/arch/powerpc/mm/hash64_64k.c
+++ b/arch/powerpc/mm/hash64_64k.c
@@ -86,7 +86,7 @@ int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid,
 
         subpg_index = (ea & (PAGE_SIZE - 1)) >> shift;
         vpn  = hpt_vpn(ea, vsid, ssize);
-        rpte = __real_pte(__pte(old_pte), ptep);
+        rpte = __real_pte(__pte(old_pte), ptep, PTRS_PER_PTE);
         /*
          *None of the sub 4k page is hashed
          */
@@ -214,7 +214,7 @@ repeat:
                 return -1;
         }
 
-        new_pte |= pte_set_hidx(ptep, rpte, subpg_index, slot);
+        new_pte |= pte_set_hidx(ptep, rpte, subpg_index, slot, PTRS_PER_PTE);
         new_pte |= H_PAGE_HASHPTE;
 
         *ptep = __pte(new_pte & ~H_PAGE_BUSY);
@@ -262,7 +262,7 @@ int __hash_page_64K(unsigned long ea, unsigned long access,
         } while (!pte_xchg(ptep, __pte(old_pte), __pte(new_pte)));
 
         rflags = htab_convert_pte_flags(new_pte);
-        rpte = __real_pte(__pte(old_pte), ptep);
+        rpte = __real_pte(__pte(old_pte), ptep, PTRS_PER_PTE);
 
         if (cpu_has_feature(CPU_FTR_NOEXECUTE) &&
             !cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
@@ -327,7 +327,7 @@ repeat:
                 }
 
                 new_pte = (new_pte & ~_PAGE_HPTEFLAGS) | H_PAGE_HASHPTE;
-                new_pte |= pte_set_hidx(ptep, rpte, 0, slot);
+                new_pte |= pte_set_hidx(ptep, rpte, 0, slot, PTRS_PER_PTE);
         }
         *ptep = __pte(new_pte & ~H_PAGE_BUSY);
         return 0;
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 7d07c7e17db6..cf290d415dcd 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -1008,6 +1008,7 @@ void __init hash__early_init_mmu(void)
         __pmd_index_size = H_PMD_INDEX_SIZE;
         __pud_index_size = H_PUD_INDEX_SIZE;
         __pgd_index_size = H_PGD_INDEX_SIZE;
+        __pud_cache_index = H_PUD_CACHE_INDEX;
         __pmd_cache_index = H_PMD_CACHE_INDEX;
         __pte_table_size = H_PTE_TABLE_SIZE;
         __pmd_table_size = H_PMD_TABLE_SIZE;
diff --git a/arch/powerpc/mm/hugetlbpage-hash64.c b/arch/powerpc/mm/hugetlbpage-hash64.c
index 12511f5a015f..b320f5097a06 100644
--- a/arch/powerpc/mm/hugetlbpage-hash64.c
+++ b/arch/powerpc/mm/hugetlbpage-hash64.c
@@ -27,7 +27,7 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
         unsigned long vpn;
         unsigned long old_pte, new_pte;
         unsigned long rflags, pa, sz;
-        long slot;
+        long slot, offset;
 
         BUG_ON(shift != mmu_psize_defs[mmu_psize].shift);
 
@@ -63,7 +63,11 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
         } while(!pte_xchg(ptep, __pte(old_pte), __pte(new_pte)));
 
         rflags = htab_convert_pte_flags(new_pte);
-        rpte = __real_pte(__pte(old_pte), ptep);
+        if (unlikely(mmu_psize == MMU_PAGE_16G))
+                offset = PTRS_PER_PUD;
+        else
+                offset = PTRS_PER_PMD;
+        rpte = __real_pte(__pte(old_pte), ptep, offset);
 
         sz = ((1UL) << shift);
         if (!cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
@@ -104,7 +108,7 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
                         return -1;
                 }
 
-                new_pte |= pte_set_hidx(ptep, rpte, 0, slot);
+                new_pte |= pte_set_hidx(ptep, rpte, 0, slot, offset);
         }
 
         /*
diff --git a/arch/powerpc/mm/init-common.c b/arch/powerpc/mm/init-common.c
index eb8c6c8c4851..2b656e67f2ea 100644
--- a/arch/powerpc/mm/init-common.c
+++ b/arch/powerpc/mm/init-common.c
@@ -100,6 +100,6 @@ void pgtable_cache_init(void)
          * same size as either the pgd or pmd index except with THP enabled
          * on book3s 64
          */
-        if (PUD_INDEX_SIZE && !PGT_CACHE(PUD_INDEX_SIZE))
-                pgtable_cache_add(PUD_INDEX_SIZE, pud_ctor);
+        if (PUD_CACHE_INDEX && !PGT_CACHE(PUD_CACHE_INDEX))
+                pgtable_cache_add(PUD_CACHE_INDEX, pud_ctor);
 }
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 314d19ab9385..edd8d0bc9364 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -143,11 +143,6 @@ static void reset_numa_cpu_lookup_table(void)
                 numa_cpu_lookup_table[cpu] = -1;
 }
 
-static void update_numa_cpu_lookup_table(unsigned int cpu, int node)
-{
-        numa_cpu_lookup_table[cpu] = node;
-}
-
 static void map_cpu_to_node(int cpu, int node)
 {
         update_numa_cpu_lookup_table(cpu, node);
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index 573a9a2ee455..2e10a964e290 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -17,9 +17,11 @@
 #include <linux/of_fdt.h>
 #include <linux/mm.h>
 #include <linux/string_helpers.h>
+#include <linux/stop_machine.h>
 
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
+#include <asm/mmu_context.h>
 #include <asm/dma.h>
 #include <asm/machdep.h>
 #include <asm/mmu.h>
@@ -333,6 +335,22 @@ static void __init radix_init_pgtable(void)
                      "r" (TLBIEL_INVAL_SET_LPID), "r" (0));
         asm volatile("eieio; tlbsync; ptesync" : : : "memory");
         trace_tlbie(0, 0, TLBIEL_INVAL_SET_LPID, 0, 2, 1, 1);
+
+        /*
+         * The init_mm context is given the first available (non-zero) PID,
+         * which is the "guard PID" and contains no page table. PIDR should
+         * never be set to zero because that duplicates the kernel address
+         * space at the 0x0... offset (quadrant 0)!
+         *
+         * An arbitrary PID that may later be allocated by the PID allocator
+         * for userspace processes must not be used either, because that
+         * would cause stale user mappings for that PID on CPUs outside of
+         * the TLB invalidation scheme (because it won't be in mm_cpumask).
+         *
+         * So permanently carve out one PID for the purpose of a guard PID.
+         */
+        init_mm.context.id = mmu_base_pid;
+        mmu_base_pid++;
 }
 
 static void __init radix_init_partition_table(void)
@@ -535,6 +553,7 @@ void __init radix__early_init_mmu(void)
         __pmd_index_size = RADIX_PMD_INDEX_SIZE;
         __pud_index_size = RADIX_PUD_INDEX_SIZE;
         __pgd_index_size = RADIX_PGD_INDEX_SIZE;
+        __pud_cache_index = RADIX_PUD_INDEX_SIZE;
         __pmd_cache_index = RADIX_PMD_INDEX_SIZE;
         __pte_table_size = RADIX_PTE_TABLE_SIZE;
         __pmd_table_size = RADIX_PMD_TABLE_SIZE;
@@ -579,7 +598,8 @@ void __init radix__early_init_mmu(void)
 
         radix_init_iamr();
         radix_init_pgtable();
-
+        /* Switch to the guard PID before turning on MMU */
+        radix__switch_mmu_context(NULL, &init_mm);
         if (cpu_has_feature(CPU_FTR_HVMODE))
                 tlbiel_all();
 }
@@ -604,6 +624,7 @@ void radix__early_init_mmu_secondary(void)
         }
         radix_init_iamr();
 
+        radix__switch_mmu_context(NULL, &init_mm);
         if (cpu_has_feature(CPU_FTR_HVMODE))
                 tlbiel_all();
 }
@@ -666,6 +687,30 @@ static void free_pmd_table(pmd_t *pmd_start, pud_t *pud)
         pud_clear(pud);
 }
 
+struct change_mapping_params {
+        pte_t *pte;
+        unsigned long start;
+        unsigned long end;
+        unsigned long aligned_start;
+        unsigned long aligned_end;
+};
+
+static int stop_machine_change_mapping(void *data)
+{
+        struct change_mapping_params *params =
+                        (struct change_mapping_params *)data;
+
+        if (!data)
+                return -1;
+
+        spin_unlock(&init_mm.page_table_lock);
+        pte_clear(&init_mm, params->aligned_start, params->pte);
+        create_physical_mapping(params->aligned_start, params->start);
+        create_physical_mapping(params->end, params->aligned_end);
+        spin_lock(&init_mm.page_table_lock);
+        return 0;
+}
+
 static void remove_pte_table(pte_t *pte_start, unsigned long addr,
                              unsigned long end)
 {
@@ -694,6 +739,52 @@ static void remove_pte_table(pte_t *pte_start, unsigned long addr,
         }
 }
 
+/*
+ * clear the pte and potentially split the mapping helper
+ */
+static void split_kernel_mapping(unsigned long addr, unsigned long end,
+                                unsigned long size, pte_t *pte)
+{
+        unsigned long mask = ~(size - 1);
+        unsigned long aligned_start = addr & mask;
+        unsigned long aligned_end = addr + size;
+        struct change_mapping_params params;
+        bool split_region = false;
+
+        if ((end - addr) < size) {
+                /*
+                 * We're going to clear the PTE, but not flushed
+                 * the mapping, time to remap and flush. The
+                 * effects if visible outside the processor or
+                 * if we are running in code close to the
+                 * mapping we cleared, we are in trouble.
+                 */
+                if (overlaps_kernel_text(aligned_start, addr) ||
+                        overlaps_kernel_text(end, aligned_end)) {
+                        /*
+                         * Hack, just return, don't pte_clear
+                         */
+                        WARN_ONCE(1, "Linear mapping %lx->%lx overlaps kernel "
+                                  "text, not splitting\n", addr, end);
+                        return;
+                }
+                split_region = true;
+        }
+
+        if (split_region) {
+                params.pte = pte;
+                params.start = addr;
+                params.end = end;
+                params.aligned_start = addr & ~(size - 1);
+                params.aligned_end = min_t(unsigned long, aligned_end,
+                                (unsigned long)__va(memblock_end_of_DRAM()));
+                stop_machine(stop_machine_change_mapping, &params, NULL);
+                return;
+        }
+
+        pte_clear(&init_mm, addr, pte);
+}
+
 static void remove_pmd_table(pmd_t *pmd_start, unsigned long addr,
                              unsigned long end)
 {
@@ -709,13 +800,7 @@ static void remove_pmd_table(pmd_t *pmd_start, unsigned long addr,
                         continue;
 
                 if (pmd_huge(*pmd)) {
-                        if (!IS_ALIGNED(addr, PMD_SIZE) ||
-                            !IS_ALIGNED(next, PMD_SIZE)) {
-                                WARN_ONCE(1, "%s: unaligned range\n", __func__);
-                                continue;
-                        }
-
-                        pte_clear(&init_mm, addr, (pte_t *)pmd);
+                        split_kernel_mapping(addr, end, PMD_SIZE, (pte_t *)pmd);
                         continue;
                 }
 
@@ -740,13 +825,7 @@ static void remove_pud_table(pud_t *pud_start, unsigned long addr,
                         continue;
 
                 if (pud_huge(*pud)) {
-                        if (!IS_ALIGNED(addr, PUD_SIZE) ||
-                            !IS_ALIGNED(next, PUD_SIZE)) {
-                                WARN_ONCE(1, "%s: unaligned range\n", __func__);
-                                continue;
-                        }
-
-                        pte_clear(&init_mm, addr, (pte_t *)pud);
+                        split_kernel_mapping(addr, end, PUD_SIZE, (pte_t *)pud);
                         continue;
                 }
 
@@ -772,13 +851,7 @@ static void remove_pagetable(unsigned long start, unsigned long end)
                         continue;
 
                 if (pgd_huge(*pgd)) {
-                        if (!IS_ALIGNED(addr, PGDIR_SIZE) ||
-                            !IS_ALIGNED(next, PGDIR_SIZE)) {
-                                WARN_ONCE(1, "%s: unaligned range\n", __func__);
-                                continue;
-                        }
-
-                        pte_clear(&init_mm, addr, (pte_t *)pgd);
+                        split_kernel_mapping(addr, end, PGDIR_SIZE, (pte_t *)pgd);
                         continue;
                 }
 
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index c9a623c2d8a2..28c980eb4422 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -82,6 +82,8 @@ unsigned long __pgd_index_size;
 EXPORT_SYMBOL(__pgd_index_size);
 unsigned long __pmd_cache_index;
 EXPORT_SYMBOL(__pmd_cache_index);
+unsigned long __pud_cache_index;
+EXPORT_SYMBOL(__pud_cache_index);
 unsigned long __pte_table_size;
 EXPORT_SYMBOL(__pte_table_size);
 unsigned long __pmd_table_size;
@@ -471,6 +473,8 @@ void mmu_partition_table_set_entry(unsigned int lpid, unsigned long dw0,
         if (old & PATB_HR) {
                 asm volatile(PPC_TLBIE_5(%0,%1,2,0,1) : :
                              "r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
+                asm volatile(PPC_TLBIE_5(%0,%1,2,1,1) : :
+                             "r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
                 trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 1);
         } else {
                 asm volatile(PPC_TLBIE_5(%0,%1,2,0,0) : :
diff --git a/arch/powerpc/mm/tlb_hash64.c b/arch/powerpc/mm/tlb_hash64.c
index 881ebd53ffc2..9b23f12e863c 100644
--- a/arch/powerpc/mm/tlb_hash64.c
+++ b/arch/powerpc/mm/tlb_hash64.c
@@ -51,7 +51,7 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
         unsigned int psize;
         int ssize;
         real_pte_t rpte;
-        int i;
+        int i, offset;
 
         i = batch->index;
 
@@ -67,6 +67,10 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
                 psize = get_slice_psize(mm, addr);
                 /* Mask the address for the correct page size */
                 addr &= ~((1UL << mmu_psize_defs[psize].shift) - 1);
+                if (unlikely(psize == MMU_PAGE_16G))
+                        offset = PTRS_PER_PUD;
+                else
+                        offset = PTRS_PER_PMD;
 #else
                 BUG();
                 psize = pte_pagesize_index(mm, addr, pte); /* shutup gcc */
@@ -78,6 +82,7 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
                  * support 64k pages, this might be different from the
                  * hardware page size encoded in the slice table. */
                 addr &= PAGE_MASK;
+                offset = PTRS_PER_PTE;
         }
 
 
@@ -91,7 +96,7 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
         }
         WARN_ON(vsid == 0);
         vpn = hpt_vpn(addr, vsid, ssize);
-        rpte = __real_pte(__pte(pte), ptep);
+        rpte = __real_pte(__pte(pte), ptep, offset);
 
         /*
          * Check if we have an active batch on this CPU. If not, just
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index 872d1f6dd11e..a9636d8cba15 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -327,6 +327,9 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image,
                         BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, len) != 4);
                         PPC_LWZ_OFFS(r_A, r_skb, offsetof(struct sk_buff, len));
                         break;
+                case BPF_LDX | BPF_W | BPF_ABS: /* A = *((u32 *)(seccomp_data + K)); */
+                        PPC_LWZ_OFFS(r_A, r_skb, K);
+                        break;
                 case BPF_LDX | BPF_W | BPF_LEN: /* X = skb->len; */
                         PPC_LWZ_OFFS(r_X, r_skb, offsetof(struct sk_buff, len));
                         break;
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index 0a34b0cec7b7..0ef3d9580e98 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -240,6 +240,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32
          *   goto out;
          */
         PPC_LWZ(b2p[TMP_REG_1], b2p_bpf_array, offsetof(struct bpf_array, map.max_entries));
+        PPC_RLWINM(b2p_index, b2p_index, 0, 0, 31);
         PPC_CMPLW(b2p_index, b2p[TMP_REG_1]);
         PPC_BCC(COND_GE, out);
 
diff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c
index dd4c9b8b8a81..f6f55ab4980e 100644
--- a/arch/powerpc/platforms/powernv/opal-imc.c
+++ b/arch/powerpc/platforms/powernv/opal-imc.c
@@ -199,9 +199,11 @@ static void disable_nest_pmu_counters(void)
         const struct cpumask *l_cpumask;
 
         get_online_cpus();
-        for_each_online_node(nid) {
+        for_each_node_with_cpus(nid) {
                 l_cpumask = cpumask_of_node(nid);
-                cpu = cpumask_first(l_cpumask);
+                cpu = cpumask_first_and(l_cpumask, cpu_online_mask);
+                if (cpu >= nr_cpu_ids)
+                        continue;
                 opal_imc_counters_stop(OPAL_IMC_COUNTERS_NEST,
                                        get_hard_smp_processor_id(cpu));
         }
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 496e47696ed0..a6c92c78c9b2 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1854,7 +1854,7 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
         s64 rc;
 
         if (WARN_ON(!pdn || pdn->pe_number == IODA_INVALID_PE))
-                return -ENODEV;;
+                return -ENODEV;
 
         pe = &phb->ioda.pe_array[pdn->pe_number];
         if (pe->tce_bypass_enabled) {
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index 4fb21e17504a..092715b9674b 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -80,6 +80,10 @@ static void pnv_setup_rfi_flush(void)
                 if (np && of_property_read_bool(np, "disabled"))
                         enable--;
 
+                np = of_get_child_by_name(fw_features, "speculation-policy-favor-security");
+                if (np && of_property_read_bool(np, "disabled"))
+                        enable = 0;
+
                 of_node_put(np);
                 of_node_put(fw_features);
         }
diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c
index 2b3eb01ab110..b7c53a51c31b 100644
--- a/arch/powerpc/platforms/powernv/vas-window.c
+++ b/arch/powerpc/platforms/powernv/vas-window.c
@@ -1063,16 +1063,16 @@ struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop,
                         rc = PTR_ERR(txwin->paste_kaddr);
                         goto free_window;
                 }
+        } else {
+                /*
+                 * A user mapping must ensure that context switch issues
+                 * CP_ABORT for this thread.
+                 */
+                rc = set_thread_uses_vas();
+                if (rc)
+                        goto free_window;
         }
 
-        /*
-         * Now that we have a send window, ensure context switch issues
-         * CP_ABORT for this thread.
-         */
-        rc = -EINVAL;
-        if (set_thread_uses_vas() < 0)
-                goto free_window;
-
         set_vinst_win(vinst, txwin);
 
         return txwin;
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index dceb51454d8d..652d3e96b812 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -36,6 +36,7 @@
 #include <asm/xics.h>
 #include <asm/xive.h>
 #include <asm/plpar_wrappers.h>
+#include <asm/topology.h>
 
 #include "pseries.h"
 #include "offline_states.h"
@@ -331,6 +332,7 @@ static void pseries_remove_processor(struct device_node *np)
                         BUG_ON(cpu_online(cpu));
                         set_cpu_present(cpu, false);
                         set_hard_smp_processor_id(cpu, -1);
+                        update_numa_cpu_lookup_table(cpu, -1);
                         break;
                 }
                 if (cpu >= nr_cpu_ids)
@@ -340,8 +342,6 @@ static void pseries_remove_processor(struct device_node *np)
         cpu_maps_update_done();
 }
 
-extern int find_and_online_cpu_nid(int cpu);
-
 static int dlpar_online_cpu(struct device_node *dn)
 {
         int rc = 0;
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index 81d8614e7379..5e1ef9150182 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -49,6 +49,28 @@ static irqreturn_t ras_error_interrupt(int irq, void *dev_id);
 
 
 /*
+ * Enable the hotplug interrupt late because processing them may touch other
+ * devices or systems (e.g. hugepages) that have not been initialized at the
+ * subsys stage.
+ */
+int __init init_ras_hotplug_IRQ(void)
+{
+        struct device_node *np;
+
+        /* Hotplug Events */
+        np = of_find_node_by_path("/event-sources/hot-plug-events");
+        if (np != NULL) {
+                if (dlpar_workqueue_init() == 0)
+                        request_event_sources_irqs(np, ras_hotplug_interrupt,
+                                                   "RAS_HOTPLUG");
+                of_node_put(np);
+        }
+
+        return 0;
+}
+machine_late_initcall(pseries, init_ras_hotplug_IRQ);
+
+/*
  * Initialize handlers for the set of interrupts caused by hardware errors
  * and power system events.
  */
@@ -66,15 +88,6 @@ static int __init init_ras_IRQ(void)
                 of_node_put(np);
         }
 
-        /* Hotplug Events */
-        np = of_find_node_by_path("/event-sources/hot-plug-events");
-        if (np != NULL) {
-                if (dlpar_workqueue_init() == 0)
-                        request_event_sources_irqs(np, ras_hotplug_interrupt,
-                                           "RAS_HOTPLUG");
-                of_node_put(np);
-        }
-
         /* EPOW Events */
         np = of_find_node_by_path("/event-sources/epow-events");
         if (np != NULL) {
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 372d7ada1a0c..1a527625acf7 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -482,7 +482,8 @@ static void pseries_setup_rfi_flush(void)
                 if (types == L1D_FLUSH_NONE)
                         types = L1D_FLUSH_FALLBACK;
 
-                if (!(result.behaviour & H_CPU_BEHAV_L1D_FLUSH_PR))
+                if ((!(result.behaviour & H_CPU_BEHAV_L1D_FLUSH_PR)) ||
+                    (!(result.behaviour & H_CPU_BEHAV_FAVOUR_SECURITY)))
                         enable = false;
         } else {
                 /* Default to fallback if case hcall is not available */
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
index d9c4c9366049..091f1d0d0af1 100644
--- a/arch/powerpc/sysdev/xive/spapr.c
+++ b/arch/powerpc/sysdev/xive/spapr.c
@@ -356,7 +356,8 @@ static int xive_spapr_configure_queue(u32 target, struct xive_q *q, u8 prio,
 
         rc = plpar_int_get_queue_info(0, target, prio, &esn_page, &esn_size);
         if (rc) {
-                pr_err("Error %lld getting queue info prio %d\n", rc, prio);
+                pr_err("Error %lld getting queue info CPU %d prio %d\n", rc,
+                       target, prio);
                 rc = -EIO;
                 goto fail;
         }
@@ -370,7 +371,8 @@ static int xive_spapr_configure_queue(u32 target, struct xive_q *q, u8 prio,
         /* Configure and enable the queue in HW */
         rc = plpar_int_set_queue_config(flags, target, prio, qpage_phys, order);
         if (rc) {
-                pr_err("Error %lld setting queue for prio %d\n", rc, prio);
+                pr_err("Error %lld setting queue for CPU %d prio %d\n", rc,
+                       target, prio);
                 rc = -EIO;
         } else {
                 q->qpage = qpage;
@@ -389,8 +391,8 @@ static int xive_spapr_setup_queue(unsigned int cpu, struct xive_cpu *xc,
         if (IS_ERR(qpage))
                 return PTR_ERR(qpage);
 
-        return xive_spapr_configure_queue(cpu, q, prio, qpage,
-                                          xive_queue_shift);
+        return xive_spapr_configure_queue(get_hard_smp_processor_id(cpu),
+                                          q, prio, qpage, xive_queue_shift);
 }
 
 static void xive_spapr_cleanup_queue(unsigned int cpu, struct xive_cpu *xc,
@@ -399,10 +401,12 @@ static void xive_spapr_cleanup_queue(unsigned int cpu, struct xive_cpu *xc,
         struct xive_q *q = &xc->queue[prio];
         unsigned int alloc_order;
         long rc;
+        int hw_cpu = get_hard_smp_processor_id(cpu);
 
-        rc = plpar_int_set_queue_config(0, cpu, prio, 0, 0);
+        rc = plpar_int_set_queue_config(0, hw_cpu, prio, 0, 0);
         if (rc)
-                pr_err("Error %ld setting queue for prio %d\n", rc, prio);
+                pr_err("Error %ld setting queue for CPU %d prio %d\n", rc,
+                       hw_cpu, prio);
 
         alloc_order = xive_alloc_order(xive_queue_shift);
         free_pages((unsigned long)q->qpage, alloc_order);
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index b6722c246d9c..04807c7f64cc 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -8,7 +8,6 @@ config RISCV
         select OF
         select OF_EARLY_FLATTREE
         select OF_IRQ
-        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
         select ARCH_WANT_FRAME_POINTERS
         select CLONE_BACKWARDS
         select COMMON_CLK
@@ -20,7 +19,6 @@ config RISCV
         select GENERIC_STRNLEN_USER
         select GENERIC_SMP_IDLE_THREAD
         select GENERIC_ATOMIC64 if !64BIT || !RISCV_ISA_A
-        select ARCH_WANT_OPTIONAL_GPIOLIB
         select HAVE_MEMBLOCK
         select HAVE_MEMBLOCK_NODE_MAP
         select HAVE_DMA_API_DEBUG
@@ -34,7 +32,6 @@ config RISCV
         select HAVE_ARCH_TRACEHOOK
         select MODULES_USE_ELF_RELA if MODULES
         select THREAD_INFO_IN_TASK
-        select RISCV_IRQ_INTC
         select RISCV_TIMER
 
 config MMU
diff --git a/arch/riscv/include/asm/barrier.h b/arch/riscv/include/asm/barrier.h
index c0319cbf1eec..5510366d169a 100644
--- a/arch/riscv/include/asm/barrier.h
+++ b/arch/riscv/include/asm/barrier.h
@@ -34,9 +34,9 @@
 #define wmb()           RISCV_FENCE(ow,ow)
 
 /* These barriers do not need to enforce ordering on devices, just memory. */
-#define smp_mb()        RISCV_FENCE(rw,rw)
-#define smp_rmb()       RISCV_FENCE(r,r)
-#define smp_wmb()       RISCV_FENCE(w,w)
+#define __smp_mb()      RISCV_FENCE(rw,rw)
+#define __smp_rmb()     RISCV_FENCE(r,r)
+#define __smp_wmb()     RISCV_FENCE(w,w)
 
 /*
  * This is a very specific barrier: it's currently only used in two places in
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index 87fc045be51f..56fa592cfa34 100644
--- a/arch/riscv/kernel/entry.S
+++ b/arch/riscv/kernel/entry.S
@@ -172,6 +172,9 @@ ENTRY(handle_exception)
         move a1, sp /* pt_regs */
         tail do_IRQ
 1:
+        /* Exceptions run with interrupts enabled */
+        csrs sstatus, SR_SIE
+
         /* Handle syscalls */
         li t0, EXC_SYSCALL
         beq s4, t0, handle_syscall
@@ -198,8 +201,6 @@ handle_syscall:
          */
         addi s2, s2, 0x4
         REG_S s2, PT_SEPC(sp)
-        /* System calls run with interrupts enabled */
-        csrs sstatus, SR_SIE
         /* Trace syscalls, but only if requested by the user. */
         REG_L t0, TASK_TI_FLAGS(tp)
         andi t0, t0, _TIF_SYSCALL_TRACE
diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S
index 226eeb190f90..6e07ed37bbff 100644
--- a/arch/riscv/kernel/head.S
+++ b/arch/riscv/kernel/head.S
@@ -64,7 +64,7 @@ ENTRY(_start)
         /* Start the kernel */
         mv a0, s0
         mv a1, s1
-        call sbi_save
+        call parse_dtb
         tail start_kernel
 
 relocate:
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index 09f7064e898c..c11f40c1b2a8 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -144,7 +144,7 @@ asmlinkage void __init setup_vm(void)
 #endif
 }
 
-void __init sbi_save(unsigned int hartid, void *dtb)
+void __init parse_dtb(unsigned int hartid, void *dtb)
 {
         early_init_dt_scan(__va(dtb));
 }
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index 65154eaa3714..6c8ce15cde7b 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -63,6 +63,7 @@ static inline int init_new_context(struct task_struct *tsk,
                                    _ASCE_USER_BITS | _ASCE_TYPE_SEGMENT;
                 /* pgd_alloc() did not account this pmd */
                 mm_inc_nr_pmds(mm);
+                mm_inc_nr_puds(mm);
         }
         crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm));
         return 0;
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 13a133a6015c..a5621ea6d123 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -14,6 +14,7 @@
 #include <asm/processor.h>
 #include <asm/cache.h>
 #include <asm/ctl_reg.h>
+#include <asm/dwarf.h>
 #include <asm/errno.h>
 #include <asm/ptrace.h>
 #include <asm/thread_info.h>
@@ -230,7 +231,7 @@ _PIF_WORK	= (_PIF_PER_TRAP | _PIF_SYSCALL_RESTART)
         .hidden \name
         .type \name,@function
 \name:
-        .cfi_startproc
+        CFI_STARTPROC
 #ifdef CONFIG_HAVE_MARCH_Z10_FEATURES
         exrl    0,0f
 #else
@@ -239,7 +240,7 @@ _PIF_WORK	= (_PIF_PER_TRAP | _PIF_SYSCALL_RESTART)
 #endif
         j       .
 0:      br      \reg
-        .cfi_endproc
+        CFI_ENDPROC
         .endm
 
         GEN_BR_THUNK __s390x_indirect_jump_r1use_r9,%r9,%r1
@@ -426,13 +427,13 @@ ENTRY(system_call)
         UPDATE_VTIME %r8,%r9,__LC_SYNC_ENTER_TIMER
         BPENTER __TI_flags(%r12),_TIF_ISOLATE_BP
         stmg    %r0,%r7,__PT_R0(%r11)
-        # clear user controlled register to prevent speculative use
-        xgr     %r0,%r0
         mvc     __PT_R8(64,%r11),__LC_SAVE_AREA_SYNC
         mvc     __PT_PSW(16,%r11),__LC_SVC_OLD_PSW
         mvc     __PT_INT_CODE(4,%r11),__LC_SVC_ILC
         stg     %r14,__PT_FLAGS(%r11)
 .Lsysc_do_svc:
+        # clear user controlled register to prevent speculative use
+        xgr     %r0,%r0
         # load address of system call table
         lg      %r10,__THREAD_sysc_table(%r13,%r12)
         llgh    %r8,__PT_INT_CODE+2(%r11)
@@ -1439,6 +1440,7 @@ cleanup_critical:
         stg     %r15,__LC_SYSTEM_TIMER
 0:      # update accounting time stamp
         mvc     __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
+        BPENTER __TI_flags(%r12),_TIF_ISOLATE_BP
         # set up saved register r11
         lg      %r15,__LC_KERNEL_STACK
         la      %r9,STACK_FRAME_OVERHEAD(%r15)
diff --git a/arch/s390/kernel/nospec-branch.c b/arch/s390/kernel/nospec-branch.c
index 69d7fcf48158..9aff72d3abda 100644
--- a/arch/s390/kernel/nospec-branch.c
+++ b/arch/s390/kernel/nospec-branch.c
@@ -2,8 +2,8 @@
 #include <linux/module.h>
 #include <asm/nospec-branch.h>
 
-int nospec_call_disable = IS_ENABLED(EXPOLINE_OFF);
-int nospec_return_disable = !IS_ENABLED(EXPOLINE_FULL);
+int nospec_call_disable = IS_ENABLED(CONFIG_EXPOLINE_OFF);
+int nospec_return_disable = !IS_ENABLED(CONFIG_EXPOLINE_FULL);
 
 static int __init nospectre_v2_setup_early(char *str)
 {
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 9c7d70715862..07c6e81163bf 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -22,22 +22,6 @@
 #include "trace.h"
 #include "trace-s390.h"
 
-
-static const intercept_handler_t instruction_handlers[256] = {
-        [0x01] = kvm_s390_handle_01,
-        [0x82] = kvm_s390_handle_lpsw,
-        [0x83] = kvm_s390_handle_diag,
-        [0xaa] = kvm_s390_handle_aa,
-        [0xae] = kvm_s390_handle_sigp,
-        [0xb2] = kvm_s390_handle_b2,
-        [0xb6] = kvm_s390_handle_stctl,
-        [0xb7] = kvm_s390_handle_lctl,
-        [0xb9] = kvm_s390_handle_b9,
-        [0xe3] = kvm_s390_handle_e3,
-        [0xe5] = kvm_s390_handle_e5,
-        [0xeb] = kvm_s390_handle_eb,
-};
-
 u8 kvm_s390_get_ilen(struct kvm_vcpu *vcpu)
 {
         struct kvm_s390_sie_block *sie_block = vcpu->arch.sie_block;
@@ -129,16 +113,39 @@ static int handle_validity(struct kvm_vcpu *vcpu)
 
 static int handle_instruction(struct kvm_vcpu *vcpu)
 {
-        intercept_handler_t handler;
-
         vcpu->stat.exit_instruction++;
         trace_kvm_s390_intercept_instruction(vcpu,
                                              vcpu->arch.sie_block->ipa,
                                              vcpu->arch.sie_block->ipb);
-        handler = instruction_handlers[vcpu->arch.sie_block->ipa >> 8];
-        if (handler)
-                return handler(vcpu);
-        return -EOPNOTSUPP;
+
+        switch (vcpu->arch.sie_block->ipa >> 8) {
+        case 0x01:
+                return kvm_s390_handle_01(vcpu);
+        case 0x82:
+                return kvm_s390_handle_lpsw(vcpu);
+        case 0x83:
+                return kvm_s390_handle_diag(vcpu);
+        case 0xaa:
+                return kvm_s390_handle_aa(vcpu);
+        case 0xae:
+                return kvm_s390_handle_sigp(vcpu);
+        case 0xb2:
+                return kvm_s390_handle_b2(vcpu);
+        case 0xb6:
+                return kvm_s390_handle_stctl(vcpu);
+        case 0xb7:
+                return kvm_s390_handle_lctl(vcpu);
+        case 0xb9:
+                return kvm_s390_handle_b9(vcpu);
+        case 0xe3:
+                return kvm_s390_handle_e3(vcpu);
+        case 0xe5:
+                return kvm_s390_handle_e5(vcpu);
+        case 0xeb:
+                return kvm_s390_handle_eb(vcpu);
+        default:
+                return -EOPNOTSUPP;
+        }
 }
 
 static int inject_prog_on_prog_intercept(struct kvm_vcpu *vcpu)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index aabf46f5f883..b04616b57a94 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -169,8 +169,15 @@ static int ckc_interrupts_enabled(struct kvm_vcpu *vcpu)
 
 static int ckc_irq_pending(struct kvm_vcpu *vcpu)
 {
-        if (vcpu->arch.sie_block->ckc >= kvm_s390_get_tod_clock_fast(vcpu->kvm))
+        const u64 now = kvm_s390_get_tod_clock_fast(vcpu->kvm);
+        const u64 ckc = vcpu->arch.sie_block->ckc;
+
+        if (vcpu->arch.sie_block->gcr[0] & 0x0020000000000000ul) {
+                if ((s64)ckc >= (s64)now)
+                        return 0;
+        } else if (ckc >= now) {
                 return 0;
+        }
         return ckc_interrupts_enabled(vcpu);
 }
 
@@ -187,12 +194,6 @@ static int cpu_timer_irq_pending(struct kvm_vcpu *vcpu)
         return kvm_s390_get_cpu_timer(vcpu) >> 63;
 }
 
-static inline int is_ioirq(unsigned long irq_type)
-{
-        return ((irq_type >= IRQ_PEND_IO_ISC_7) &&
-                (irq_type <= IRQ_PEND_IO_ISC_0));
-}
-
 static uint64_t isc_to_isc_bits(int isc)
 {
         return (0x80 >> isc) << 24;
@@ -236,10 +237,15 @@ static inline int kvm_s390_gisa_tac_ipm_gisc(struct kvm_s390_gisa *gisa, u32 gis
         return test_and_clear_bit_inv(IPM_BIT_OFFSET + gisc, (unsigned long *) gisa);
 }
 
-static inline unsigned long pending_irqs(struct kvm_vcpu *vcpu)
+static inline unsigned long pending_irqs_no_gisa(struct kvm_vcpu *vcpu)
 {
         return vcpu->kvm->arch.float_int.pending_irqs |
-                vcpu->arch.local_int.pending_irqs |
+                vcpu->arch.local_int.pending_irqs;
+}
+
+static inline unsigned long pending_irqs(struct kvm_vcpu *vcpu)
+{
+        return pending_irqs_no_gisa(vcpu) |
                 kvm_s390_gisa_get_ipm(vcpu->kvm->arch.gisa) << IRQ_PEND_IO_ISC_7;
 }
 
@@ -337,7 +343,7 @@ static void __reset_intercept_indicators(struct kvm_vcpu *vcpu)
 
 static void set_intercept_indicators_io(struct kvm_vcpu *vcpu)
 {
-        if (!(pending_irqs(vcpu) & IRQ_PEND_IO_MASK))
+        if (!(pending_irqs_no_gisa(vcpu) & IRQ_PEND_IO_MASK))
                 return;
         else if (psw_ioint_disabled(vcpu))
                 kvm_s390_set_cpuflags(vcpu, CPUSTAT_IO_INT);
@@ -1011,24 +1017,6 @@ out:
         return rc;
 }
 
-typedef int (*deliver_irq_t)(struct kvm_vcpu *vcpu);
-
-static const deliver_irq_t deliver_irq_funcs[] = {
-        [IRQ_PEND_MCHK_EX]        = __deliver_machine_check,
-        [IRQ_PEND_MCHK_REP]       = __deliver_machine_check,
-        [IRQ_PEND_PROG]           = __deliver_prog,
-        [IRQ_PEND_EXT_EMERGENCY]  = __deliver_emergency_signal,
-        [IRQ_PEND_EXT_EXTERNAL]   = __deliver_external_call,
-        [IRQ_PEND_EXT_CLOCK_COMP] = __deliver_ckc,
-        [IRQ_PEND_EXT_CPU_TIMER]  = __deliver_cpu_timer,
-        [IRQ_PEND_RESTART]        = __deliver_restart,
-        [IRQ_PEND_SET_PREFIX]     = __deliver_set_prefix,
-        [IRQ_PEND_PFAULT_INIT]    = __deliver_pfault_init,
-        [IRQ_PEND_EXT_SERVICE]    = __deliver_service,
-        [IRQ_PEND_PFAULT_DONE]    = __deliver_pfault_done,
-        [IRQ_PEND_VIRTIO]         = __deliver_virtio,
-};
-
 /* Check whether an external call is pending (deliverable or not) */
 int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu)
 {
@@ -1066,13 +1054,19 @@ int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
 
 static u64 __calculate_sltime(struct kvm_vcpu *vcpu)
 {
-        u64 now, cputm, sltime = 0;
+        const u64 now = kvm_s390_get_tod_clock_fast(vcpu->kvm);
+        const u64 ckc = vcpu->arch.sie_block->ckc;
+        u64 cputm, sltime = 0;
 
         if (ckc_interrupts_enabled(vcpu)) {
-                now = kvm_s390_get_tod_clock_fast(vcpu->kvm);
-                sltime = tod_to_ns(vcpu->arch.sie_block->ckc - now);
-                /* already expired or overflow? */
-                if (!sltime || vcpu->arch.sie_block->ckc <= now)
+                if (vcpu->arch.sie_block->gcr[0] & 0x0020000000000000ul) {
+                        if ((s64)now < (s64)ckc)
+                                sltime = tod_to_ns((s64)ckc - (s64)now);
+                } else if (now < ckc) {
+                        sltime = tod_to_ns(ckc - now);
+                }
+                /* already expired */
+                if (!sltime)
                         return 0;
                 if (cpu_timer_interrupts_enabled(vcpu)) {
                         cputm = kvm_s390_get_cpu_timer(vcpu);
@@ -1192,7 +1186,6 @@ void kvm_s390_clear_local_irqs(struct kvm_vcpu *vcpu)
 int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
 {
         struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
-        deliver_irq_t func;
         int rc = 0;
         unsigned long irq_type;
         unsigned long irqs;
@@ -1212,16 +1205,57 @@ int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
         while ((irqs = deliverable_irqs(vcpu)) && !rc) {
                 /* bits are in the reverse order of interrupt priority */
                 irq_type = find_last_bit(&irqs, IRQ_PEND_COUNT);
-                if (is_ioirq(irq_type)) {
+                switch (irq_type) {
+                case IRQ_PEND_IO_ISC_0:
+                case IRQ_PEND_IO_ISC_1:
+                case IRQ_PEND_IO_ISC_2:
+                case IRQ_PEND_IO_ISC_3:
+                case IRQ_PEND_IO_ISC_4:
+                case IRQ_PEND_IO_ISC_5:
+                case IRQ_PEND_IO_ISC_6:
+                case IRQ_PEND_IO_ISC_7:
                         rc = __deliver_io(vcpu, irq_type);
-                } else {
-                        func = deliver_irq_funcs[irq_type];
-                        if (!func) {
-                                WARN_ON_ONCE(func == NULL);
-                                clear_bit(irq_type, &li->pending_irqs);
-                                continue;
-                        }
-                        rc = func(vcpu);
+                        break;
+                case IRQ_PEND_MCHK_EX:
+                case IRQ_PEND_MCHK_REP:
+                        rc = __deliver_machine_check(vcpu);
+                        break;
+                case IRQ_PEND_PROG:
+                        rc = __deliver_prog(vcpu);
+                        break;
+                case IRQ_PEND_EXT_EMERGENCY:
+                        rc = __deliver_emergency_signal(vcpu);
+                        break;
+                case IRQ_PEND_EXT_EXTERNAL:
+                        rc = __deliver_external_call(vcpu);
+                        break;
+                case IRQ_PEND_EXT_CLOCK_COMP:
+                        rc = __deliver_ckc(vcpu);
+                        break;
+                case IRQ_PEND_EXT_CPU_TIMER:
+                        rc = __deliver_cpu_timer(vcpu);
+                        break;
+                case IRQ_PEND_RESTART:
+                        rc = __deliver_restart(vcpu);
+                        break;
+                case IRQ_PEND_SET_PREFIX:
+                        rc = __deliver_set_prefix(vcpu);
+                        break;
+                case IRQ_PEND_PFAULT_INIT:
+                        rc = __deliver_pfault_init(vcpu);
+                        break;
+                case IRQ_PEND_EXT_SERVICE:
+                        rc = __deliver_service(vcpu);
+                        break;
+                case IRQ_PEND_PFAULT_DONE:
+                        rc = __deliver_pfault_done(vcpu);
+                        break;
+                case IRQ_PEND_VIRTIO:
+                        rc = __deliver_virtio(vcpu);
+                        break;
+                default:
+                        WARN_ONCE(1, "Unknown pending irq type %ld", irq_type);
+                        clear_bit(irq_type, &li->pending_irqs);
                 }
         }
 
@@ -1701,7 +1735,8 @@ static void __floating_irq_kick(struct kvm *kvm, u64 type)
                 kvm_s390_set_cpuflags(dst_vcpu, CPUSTAT_STOP_INT);
                 break;
         case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX:
-                kvm_s390_set_cpuflags(dst_vcpu, CPUSTAT_IO_INT);
+                if (!(type & KVM_S390_INT_IO_AI_MASK && kvm->arch.gisa))
+                        kvm_s390_set_cpuflags(dst_vcpu, CPUSTAT_IO_INT);
                 break;
         default:
                 kvm_s390_set_cpuflags(dst_vcpu, CPUSTAT_EXT_INT);
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index ba4c7092335a..339ac0964590 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -86,6 +86,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
         { "deliver_prefix_signal", VCPU_STAT(deliver_prefix_signal) },
         { "deliver_restart_signal", VCPU_STAT(deliver_restart_signal) },
         { "deliver_program_interruption", VCPU_STAT(deliver_program_int) },
+        { "deliver_io_interrupt", VCPU_STAT(deliver_io_int) },
         { "exit_wait_state", VCPU_STAT(exit_wait_state) },
         { "instruction_epsw", VCPU_STAT(instruction_epsw) },
         { "instruction_gs", VCPU_STAT(instruction_gs) },
@@ -179,6 +180,28 @@ int kvm_arch_hardware_enable(void)
 static void kvm_gmap_notifier(struct gmap *gmap, unsigned long start,
                               unsigned long end);
 
+static void kvm_clock_sync_scb(struct kvm_s390_sie_block *scb, u64 delta)
+{
+        u8 delta_idx = 0;
+
+        /*
+         * The TOD jumps by delta, we have to compensate this by adding
+         * -delta to the epoch.
+         */
+        delta = -delta;
+
+        /* sign-extension - we're adding to signed values below */
+        if ((s64)delta < 0)
+                delta_idx = -1;
+
+        scb->epoch += delta;
+        if (scb->ecd & ECD_MEF) {
+                scb->epdx += delta_idx;
+                if (scb->epoch < delta)
+                        scb->epdx += 1;
+        }
+}
+
 /*
  * This callback is executed during stop_machine(). All CPUs are therefore
  * temporarily stopped. In order not to change guest behavior, we have to
@@ -194,13 +217,17 @@ static int kvm_clock_sync(struct notifier_block *notifier, unsigned long val,
         unsigned long long *delta = v;
 
         list_for_each_entry(kvm, &vm_list, vm_list) {
-                kvm->arch.epoch -= *delta;
                 kvm_for_each_vcpu(i, vcpu, kvm) {
-                        vcpu->arch.sie_block->epoch -= *delta;
+                        kvm_clock_sync_scb(vcpu->arch.sie_block, *delta);
+                        if (i == 0) {
+                                kvm->arch.epoch = vcpu->arch.sie_block->epoch;
+                                kvm->arch.epdx = vcpu->arch.sie_block->epdx;
+                        }
                         if (vcpu->arch.cputm_enabled)
                                 vcpu->arch.cputm_start += *delta;
                         if (vcpu->arch.vsie_block)
-                                vcpu->arch.vsie_block->epoch -= *delta;
+                                kvm_clock_sync_scb(vcpu->arch.vsie_block,
+                                                   *delta);
                 }
         }
         return NOTIFY_OK;
@@ -902,12 +929,9 @@ static int kvm_s390_set_tod_ext(struct kvm *kvm, struct kvm_device_attr *attr)
         if (copy_from_user(&gtod, (void __user *)attr->addr, sizeof(gtod)))
                 return -EFAULT;
 
-        if (test_kvm_facility(kvm, 139))
-                kvm_s390_set_tod_clock_ext(kvm, &gtod);
-        else if (gtod.epoch_idx == 0)
-                kvm_s390_set_tod_clock(kvm, gtod.tod);
-        else
+        if (!test_kvm_facility(kvm, 139) && gtod.epoch_idx)
                 return -EINVAL;
+        kvm_s390_set_tod_clock(kvm, &gtod);
 
         VM_EVENT(kvm, 3, "SET: TOD extension: 0x%x, TOD base: 0x%llx",
                 gtod.epoch_idx, gtod.tod);
@@ -932,13 +956,14 @@ static int kvm_s390_set_tod_high(struct kvm *kvm, struct kvm_device_attr *attr)
 
 static int kvm_s390_set_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
 {
-        u64 gtod;
+        struct kvm_s390_vm_tod_clock gtod = { 0 };
 
-        if (copy_from_user(&gtod, (void __user *)attr->addr, sizeof(gtod)))
+        if (copy_from_user(&gtod.tod, (void __user *)attr->addr,
+                           sizeof(gtod.tod)))
                 return -EFAULT;
 
-        kvm_s390_set_tod_clock(kvm, gtod);
-        VM_EVENT(kvm, 3, "SET: TOD base: 0x%llx", gtod);
+        kvm_s390_set_tod_clock(kvm, &gtod);
+        VM_EVENT(kvm, 3, "SET: TOD base: 0x%llx", gtod.tod);
         return 0;
 }
 
@@ -2122,6 +2147,7 @@ static void sca_add_vcpu(struct kvm_vcpu *vcpu)
                 /* we still need the basic sca for the ipte control */
                 vcpu->arch.sie_block->scaoh = (__u32)(((__u64)sca) >> 32);
                 vcpu->arch.sie_block->scaol = (__u32)(__u64)sca;
+                return;
         }
         read_lock(&vcpu->kvm->arch.sca_lock);
         if (vcpu->kvm->arch.use_esca) {
@@ -2389,6 +2415,7 @@ void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
         mutex_lock(&vcpu->kvm->lock);
         preempt_disable();
         vcpu->arch.sie_block->epoch = vcpu->kvm->arch.epoch;
+        vcpu->arch.sie_block->epdx = vcpu->kvm->arch.epdx;
         preempt_enable();
         mutex_unlock(&vcpu->kvm->lock);
         if (!kvm_is_ucontrol(vcpu->kvm)) {
@@ -3021,8 +3048,8 @@ retry:
         return 0;
 }
 
-void kvm_s390_set_tod_clock_ext(struct kvm *kvm,
-                                 const struct kvm_s390_vm_tod_clock *gtod)
+void kvm_s390_set_tod_clock(struct kvm *kvm,
+                            const struct kvm_s390_vm_tod_clock *gtod)
 {
         struct kvm_vcpu *vcpu;
         struct kvm_s390_tod_clock_ext htod;
@@ -3034,10 +3061,12 @@ void kvm_s390_set_tod_clock_ext(struct kvm *kvm,
         get_tod_clock_ext((char *)&htod);
 
         kvm->arch.epoch = gtod->tod - htod.tod;
-        kvm->arch.epdx = gtod->epoch_idx - htod.epoch_idx;
-
-        if (kvm->arch.epoch > gtod->tod)
-                kvm->arch.epdx -= 1;
+        kvm->arch.epdx = 0;
+        if (test_kvm_facility(kvm, 139)) {
+                kvm->arch.epdx = gtod->epoch_idx - htod.epoch_idx;
+                if (kvm->arch.epoch > gtod->tod)
+                        kvm->arch.epdx -= 1;
+        }
 
         kvm_s390_vcpu_block_all(kvm);
         kvm_for_each_vcpu(i, vcpu, kvm) {
@@ -3050,22 +3079,6 @@ void kvm_s390_set_tod_clock_ext(struct kvm *kvm,
         mutex_unlock(&kvm->lock);
 }
 
-void kvm_s390_set_tod_clock(struct kvm *kvm, u64 tod)
-{
-        struct kvm_vcpu *vcpu;
-        int i;
-
-        mutex_lock(&kvm->lock);
-        preempt_disable();
-        kvm->arch.epoch = tod - get_tod_clock();
-        kvm_s390_vcpu_block_all(kvm);
-        kvm_for_each_vcpu(i, vcpu, kvm)
-                vcpu->arch.sie_block->epoch = kvm->arch.epoch;
-        kvm_s390_vcpu_unblock_all(kvm);
-        preempt_enable();
-        mutex_unlock(&kvm->lock);
-}
-
 /**
  * kvm_arch_fault_in_page - fault-in guest page if necessary
  * @vcpu: The corresponding virtual cpu
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index bd31b37b0e6f..f55ac0ef99ea 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -19,8 +19,6 @@
 #include <asm/processor.h>
 #include <asm/sclp.h>
 
-typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu);
-
 /* Transactional Memory Execution related macros */
 #define IS_TE_ENABLED(vcpu)     ((vcpu->arch.sie_block->ecb & ECB_TE))
 #define TDB_FORMAT1             1
@@ -283,9 +281,8 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu);
 int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu);
 
 /* implemented in kvm-s390.c */
-void kvm_s390_set_tod_clock_ext(struct kvm *kvm,
-                                 const struct kvm_s390_vm_tod_clock *gtod);
-void kvm_s390_set_tod_clock(struct kvm *kvm, u64 tod);
+void kvm_s390_set_tod_clock(struct kvm *kvm,
+                            const struct kvm_s390_vm_tod_clock *gtod);
 long kvm_arch_fault_in_page(struct kvm_vcpu *vcpu, gpa_t gpa, int writable);
 int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long addr);
 int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr);
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index c4c4e157c036..f0b4185158af 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -85,9 +85,10 @@ int kvm_s390_handle_e3(struct kvm_vcpu *vcpu)
 /* Handle SCK (SET CLOCK) interception */
 static int handle_set_clock(struct kvm_vcpu *vcpu)
 {
+        struct kvm_s390_vm_tod_clock gtod = { 0 };
         int rc;
         u8 ar;
-        u64 op2, val;
+        u64 op2;
 
         vcpu->stat.instruction_sck++;
 
@@ -97,12 +98,12 @@ static int handle_set_clock(struct kvm_vcpu *vcpu)
         op2 = kvm_s390_get_base_disp_s(vcpu, &ar);
         if (op2 & 7)    /* Operand must be on a doubleword boundary */
                 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
-        rc = read_guest(vcpu, op2, ar, &val, sizeof(val));
+        rc = read_guest(vcpu, op2, ar, &gtod.tod, sizeof(gtod.tod));
         if (rc)
                 return kvm_s390_inject_prog_cond(vcpu, rc);
 
-        VCPU_EVENT(vcpu, 3, "SCK: setting guest TOD to 0x%llx", val);
-        kvm_s390_set_tod_clock(vcpu->kvm, val);
+        VCPU_EVENT(vcpu, 3, "SCK: setting guest TOD to 0x%llx", gtod.tod);
+        kvm_s390_set_tod_clock(vcpu->kvm, &gtod);
 
         kvm_s390_set_psw_cc(vcpu, 0);
         return 0;
@@ -795,55 +796,60 @@ out:
         return rc;
 }
 
-static const intercept_handler_t b2_handlers[256] = {
-        [0x02] = handle_stidp,
-        [0x04] = handle_set_clock,
-        [0x10] = handle_set_prefix,
-        [0x11] = handle_store_prefix,
-        [0x12] = handle_store_cpu_address,
-        [0x14] = kvm_s390_handle_vsie,
-        [0x21] = handle_ipte_interlock,
-        [0x29] = handle_iske,
-        [0x2a] = handle_rrbe,
-        [0x2b] = handle_sske,
-        [0x2c] = handle_test_block,
-        [0x30] = handle_io_inst,
-        [0x31] = handle_io_inst,
-        [0x32] = handle_io_inst,
-        [0x33] = handle_io_inst,
-        [0x34] = handle_io_inst,
-        [0x35] = handle_io_inst,
-        [0x36] = handle_io_inst,
-        [0x37] = handle_io_inst,
-        [0x38] = handle_io_inst,
-        [0x39] = handle_io_inst,
-        [0x3a] = handle_io_inst,
-        [0x3b] = handle_io_inst,
-        [0x3c] = handle_io_inst,
-        [0x50] = handle_ipte_interlock,
-        [0x56] = handle_sthyi,
-        [0x5f] = handle_io_inst,
-        [0x74] = handle_io_inst,
-        [0x76] = handle_io_inst,
-        [0x7d] = handle_stsi,
-        [0xb1] = handle_stfl,
-        [0xb2] = handle_lpswe,
-};
-
 int kvm_s390_handle_b2(struct kvm_vcpu *vcpu)
 {
-        intercept_handler_t handler;
-
-        /*
-         * A lot of B2 instructions are priviledged. Here we check for
-         * the privileged ones, that we can handle in the kernel.
-         * Anything else goes to userspace.
-         */
-        handler = b2_handlers[vcpu->arch.sie_block->ipa & 0x00ff];
-        if (handler)
-                return handler(vcpu);
-
-        return -EOPNOTSUPP;
+        switch (vcpu->arch.sie_block->ipa & 0x00ff) {
+        case 0x02:
+                return handle_stidp(vcpu);
+        case 0x04:
+                return handle_set_clock(vcpu);
+        case 0x10:
+                return handle_set_prefix(vcpu);
+        case 0x11:
+                return handle_store_prefix(vcpu);
+        case 0x12:
+                return handle_store_cpu_address(vcpu);
+        case 0x14:
+                return kvm_s390_handle_vsie(vcpu);
+        case 0x21:
+        case 0x50:
+                return handle_ipte_interlock(vcpu);
+        case 0x29:
+                return handle_iske(vcpu);
+        case 0x2a:
+                return handle_rrbe(vcpu);
+        case 0x2b:
+                return handle_sske(vcpu);
+        case 0x2c:
+                return handle_test_block(vcpu);
+        case 0x30:
+        case 0x31:
+        case 0x32:
+        case 0x33:
+        case 0x34:
+        case 0x35:
+        case 0x36:
+        case 0x37:
+        case 0x38:
+        case 0x39:
+        case 0x3a:
+        case 0x3b:
+        case 0x3c:
+        case 0x5f:
+        case 0x74:
+        case 0x76:
+                return handle_io_inst(vcpu);
+        case 0x56:
+                return handle_sthyi(vcpu);
+        case 0x7d:
+                return handle_stsi(vcpu);
+        case 0xb1:
+                return handle_stfl(vcpu);
+        case 0xb2:
+                return handle_lpswe(vcpu);
+        default:
+                return -EOPNOTSUPP;
+        }
 }
 
 static int handle_epsw(struct kvm_vcpu *vcpu)
@@ -1105,25 +1111,22 @@ static int handle_essa(struct kvm_vcpu *vcpu)
         return 0;
 }
 
-static const intercept_handler_t b9_handlers[256] = {
-        [0x8a] = handle_ipte_interlock,
-        [0x8d] = handle_epsw,
-        [0x8e] = handle_ipte_interlock,
-        [0x8f] = handle_ipte_interlock,
-        [0xab] = handle_essa,
-        [0xaf] = handle_pfmf,
-};
-
 int kvm_s390_handle_b9(struct kvm_vcpu *vcpu)
 {
-        intercept_handler_t handler;
-
-        /* This is handled just as for the B2 instructions. */
-        handler = b9_handlers[vcpu->arch.sie_block->ipa & 0x00ff];
-        if (handler)
-                return handler(vcpu);
-
-        return -EOPNOTSUPP;
+        switch (vcpu->arch.sie_block->ipa & 0x00ff) {
+        case 0x8a:
+        case 0x8e:
+        case 0x8f:
+                return handle_ipte_interlock(vcpu);
+        case 0x8d:
+                return handle_epsw(vcpu);
+        case 0xab:
+                return handle_essa(vcpu);
+        case 0xaf:
+                return handle_pfmf(vcpu);
+        default:
+                return -EOPNOTSUPP;
+        }
 }
 
 int kvm_s390_handle_lctl(struct kvm_vcpu *vcpu)
@@ -1271,22 +1274,20 @@ static int handle_stctg(struct kvm_vcpu *vcpu)
         return rc ? kvm_s390_inject_prog_cond(vcpu, rc) : 0;
 }
 
-static const intercept_handler_t eb_handlers[256] = {
-        [0x2f] = handle_lctlg,
-        [0x25] = handle_stctg,
-        [0x60] = handle_ri,
-        [0x61] = handle_ri,
-        [0x62] = handle_ri,
-};
-
 int kvm_s390_handle_eb(struct kvm_vcpu *vcpu)
 {
-        intercept_handler_t handler;
-
-        handler = eb_handlers[vcpu->arch.sie_block->ipb & 0xff];
-        if (handler)
-                return handler(vcpu);
-        return -EOPNOTSUPP;
+        switch (vcpu->arch.sie_block->ipb & 0x000000ff) {
+        case 0x25:
+                return handle_stctg(vcpu);
+        case 0x2f:
+                return handle_lctlg(vcpu);
+        case 0x60:
+        case 0x61:
+        case 0x62:
+                return handle_ri(vcpu);
+        default:
+                return -EOPNOTSUPP;
+        }
 }
 
 static int handle_tprot(struct kvm_vcpu *vcpu)
@@ -1346,10 +1347,12 @@ out_unlock:
 
 int kvm_s390_handle_e5(struct kvm_vcpu *vcpu)
 {
-        /* For e5xx... instructions we only handle TPROT */
-        if ((vcpu->arch.sie_block->ipa & 0x00ff) == 0x01)
+        switch (vcpu->arch.sie_block->ipa & 0x00ff) {
+        case 0x01:
                 return handle_tprot(vcpu);
-        return -EOPNOTSUPP;
+        default:
+                return -EOPNOTSUPP;
+        }
 }
 
 static int handle_sckpf(struct kvm_vcpu *vcpu)
@@ -1380,17 +1383,14 @@ static int handle_ptff(struct kvm_vcpu *vcpu)
         return 0;
 }
 
-static const intercept_handler_t x01_handlers[256] = {
-        [0x04] = handle_ptff,
-        [0x07] = handle_sckpf,
-};
-
 int kvm_s390_handle_01(struct kvm_vcpu *vcpu)
 {
-        intercept_handler_t handler;
-
-        handler = x01_handlers[vcpu->arch.sie_block->ipa & 0x00ff];
-        if (handler)
-                return handler(vcpu);
-        return -EOPNOTSUPP;
+        switch (vcpu->arch.sie_block->ipa & 0x00ff) {
+        case 0x04:
+                return handle_ptff(vcpu);
+        case 0x07:
+                return handle_sckpf(vcpu);
+        default:
+                return -EOPNOTSUPP;
+        }
 }
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index ec772700ff96..8961e3970901 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -821,6 +821,7 @@ static int do_vsie_run(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
 {
         struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s;
         struct kvm_s390_sie_block *scb_o = vsie_page->scb_o;
+        int guest_bp_isolation;
         int rc;
 
         handle_last_fault(vcpu, vsie_page);
@@ -831,6 +832,20 @@ static int do_vsie_run(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
                 s390_handle_mcck();
 
         srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
+
+        /* save current guest state of bp isolation override */
+        guest_bp_isolation = test_thread_flag(TIF_ISOLATE_BP_GUEST);
+
+        /*
+         * The guest is running with BPBC, so we have to force it on for our
+         * nested guest. This is done by enabling BPBC globally, so the BPBC
+         * control in the SCB (which the nested guest can modify) is simply
+         * ignored.
+         */
+        if (test_kvm_facility(vcpu->kvm, 82) &&
+            vcpu->arch.sie_block->fpf & FPF_BPBC)
+                set_thread_flag(TIF_ISOLATE_BP_GUEST);
+
         local_irq_disable();
         guest_enter_irqoff();
         local_irq_enable();
@@ -840,6 +855,11 @@ static int do_vsie_run(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
         local_irq_disable();
         guest_exit_irqoff();
         local_irq_enable();
+
+        /* restore guest state for bp isolation override */
+        if (!guest_bp_isolation)
+                clear_thread_flag(TIF_ISOLATE_BP_GUEST);
+
         vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 
         if (rc == -EINTR) {
diff --git a/arch/sh/boot/dts/Makefile b/arch/sh/boot/dts/Makefile
index 715def00a436..01d0f7fb14cc 100644
--- a/arch/sh/boot/dts/Makefile
+++ b/arch/sh/boot/dts/Makefile
@@ -1 +1,3 @@
-obj-$(CONFIG_USE_BUILTIN_DTB) += $(patsubst "%",%,$(CONFIG_BUILTIN_DTB_SOURCE)).dtb.o
+ifneq ($(CONFIG_BUILTIN_DTB_SOURCE),"")
+obj-y += $(patsubst "%",%,$(CONFIG_BUILTIN_DTB_SOURCE)).dtb.o
+endif
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 6bf594ace663..8767e45f1b2b 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -430,6 +430,8 @@ config SPARC_LEON
         depends on SPARC32
         select USB_EHCI_BIG_ENDIAN_MMIO
         select USB_EHCI_BIG_ENDIAN_DESC
+        select USB_UHCI_BIG_ENDIAN_MMIO
+        select USB_UHCI_BIG_ENDIAN_DESC
         ---help---
           If you say Y here if you are running on a SPARC-LEON processor.
           The LEON processor is a synthesizable VHDL model of the
diff --git a/arch/sparc/include/asm/bug.h b/arch/sparc/include/asm/bug.h
index 6f17528356b2..ea53e418f6c0 100644
--- a/arch/sparc/include/asm/bug.h
+++ b/arch/sparc/include/asm/bug.h
@@ -9,10 +9,14 @@
 void do_BUG(const char *file, int line);
 #define BUG() do {                                      \
         do_BUG(__FILE__, __LINE__);                     \
+        barrier_before_unreachable();                   \
         __builtin_trap();                               \
 } while (0)
 #else
-#define BUG()           __builtin_trap()
+#define BUG() do {                                      \
+        barrier_before_unreachable();                   \
+        __builtin_trap();                               \
+} while (0)
 #endif
 
 #define HAVE_ARCH_BUG
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c
index 847ddffbf38a..b5cfab711651 100644
--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -163,13 +163,10 @@ static void tlb_batch_pmd_scan(struct mm_struct *mm, unsigned long vaddr,
         pte_unmap(pte);
 }
 
-void set_pmd_at(struct mm_struct *mm, unsigned long addr,
-                pmd_t *pmdp, pmd_t pmd)
-{
-        pmd_t orig = *pmdp;
-
-        *pmdp = pmd;
 
+static void __set_pmd_acct(struct mm_struct *mm, unsigned long addr,
+                           pmd_t orig, pmd_t pmd)
+{
         if (mm == &init_mm)
                 return;
 
@@ -219,6 +216,15 @@ void set_pmd_at(struct mm_struct *mm, unsigned long addr,
         }
 }
 
+void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+                pmd_t *pmdp, pmd_t pmd)
+{
+        pmd_t orig = *pmdp;
+
+        *pmdp = pmd;
+        __set_pmd_acct(mm, addr, orig, pmd);
+}
+
 static inline pmd_t pmdp_establish(struct vm_area_struct *vma,
                 unsigned long address, pmd_t *pmdp, pmd_t pmd)
 {
@@ -227,6 +233,7 @@ static inline pmd_t pmdp_establish(struct vm_area_struct *vma,
         do {
                 old = *pmdp;
         } while (cmpxchg64(&pmdp->pmd, old.pmd, pmd.pmd) != old.pmd);
+        __set_pmd_acct(vma->vm_mm, address, old, pmd);
 
         return old;
 }
diff --git a/arch/x86/.gitignore b/arch/x86/.gitignore
index aff152c87cf4..5a82bac5e0bc 100644
--- a/arch/x86/.gitignore
+++ b/arch/x86/.gitignore
@@ -1,6 +1,7 @@
 boot/compressed/vmlinux
 tools/test_get_len
 tools/insn_sanity
+tools/insn_decoder_test
 purgatory/kexec-purgatory.c
 purgatory/purgatory.ro
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 63bf349b2b24..0fa71a78ec99 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -423,12 +423,6 @@ config X86_MPPARSE
           For old smp systems that do not have proper acpi support. Newer systems
           (esp with 64bit cpus) with acpi support, MADT and DSDT will override it
 
-config X86_BIGSMP
-        bool "Support for big SMP systems with more than 8 CPUs"
-        depends on X86_32 && SMP
-        ---help---
-          This option is needed for the systems that have more than 8 CPUs
-
 config GOLDFISH
        def_bool y
        depends on X86_GOLDFISH
@@ -436,6 +430,7 @@ config GOLDFISH
 config RETPOLINE
         bool "Avoid speculative indirect branches in kernel"
         default y
+        select STACK_VALIDATION if HAVE_STACK_VALIDATION
         help
           Compile kernel with the retpoline compiler options to guard against
           kernel-to-user data leaks by avoiding speculative indirect
@@ -460,6 +455,12 @@ config INTEL_RDT
           Say N if unsure.
 
 if X86_32
+config X86_BIGSMP
+        bool "Support for big SMP systems with more than 8 CPUs"
+        depends on SMP
+        ---help---
+          This option is needed for the systems that have more than 8 CPUs
+
 config X86_EXTENDED_PLATFORM
         bool "Support for extended (non-PC) x86 platforms"
         default y
@@ -949,25 +950,66 @@ config MAXSMP
           Enable maximum number of CPUS and NUMA Nodes for this architecture.
           If unsure, say N.
 
+#
+# The maximum number of CPUs supported:
+#
+# The main config value is NR_CPUS, which defaults to NR_CPUS_DEFAULT,
+# and which can be configured interactively in the
+# [NR_CPUS_RANGE_BEGIN ... NR_CPUS_RANGE_END] range.
+#
+# The ranges are different on 32-bit and 64-bit kernels, depending on
+# hardware capabilities and scalability features of the kernel.
+#
+# ( If MAXSMP is enabled we just use the highest possible value and disable
+#   interactive configuration. )
+#
+
+config NR_CPUS_RANGE_BEGIN
+        int
+        default NR_CPUS_RANGE_END if MAXSMP
+        default    1 if !SMP
+        default    2
+
+config NR_CPUS_RANGE_END
+        int
+        depends on X86_32
+        default   64 if  SMP &&  X86_BIGSMP
+        default    8 if  SMP && !X86_BIGSMP
+        default    1 if !SMP
+
+config NR_CPUS_RANGE_END
+        int
+        depends on X86_64
+        default 8192 if  SMP && ( MAXSMP ||  CPUMASK_OFFSTACK)
+        default  512 if  SMP && (!MAXSMP && !CPUMASK_OFFSTACK)
+        default    1 if !SMP
+
+config NR_CPUS_DEFAULT
+        int
+        depends on X86_32
+        default   32 if  X86_BIGSMP
+        default    8 if  SMP
+        default    1 if !SMP
+
+config NR_CPUS_DEFAULT
+        int
+        depends on X86_64
+        default 8192 if  MAXSMP
+        default   64 if  SMP
+        default    1 if !SMP
+
 config NR_CPUS
         int "Maximum number of CPUs" if SMP && !MAXSMP
-        range 2 8 if SMP && X86_32 && !X86_BIGSMP
-        range 2 64 if SMP && X86_32 && X86_BIGSMP
-        range 2 512 if SMP && !MAXSMP && !CPUMASK_OFFSTACK && X86_64
-        range 2 8192 if SMP && !MAXSMP && CPUMASK_OFFSTACK && X86_64
-        default "1" if !SMP
-        default "8192" if MAXSMP
-        default "32" if SMP && X86_BIGSMP
-        default "8" if SMP && X86_32
-        default "64" if SMP
+        range NR_CPUS_RANGE_BEGIN NR_CPUS_RANGE_END
+        default NR_CPUS_DEFAULT
         ---help---
           This allows you to specify the maximum number of CPUs which this
           kernel will support.  If CPUMASK_OFFSTACK is enabled, the maximum
           supported value is 8192, otherwise the maximum value is 512.  The
           minimum value which makes sense is 2.
 
-          This is purely to save memory - each supported CPU adds
-          approximately eight kilobytes to the kernel image.
+          This is purely to save memory: each supported CPU adds about 8KB
+          to the kernel image.
 
 config SCHED_SMT
         bool "SMT (Hyperthreading) scheduler support"
@@ -1363,7 +1405,7 @@ config HIGHMEM4G
 
 config HIGHMEM64G
         bool "64GB"
-        depends on !M486
+        depends on !M486 && !M586 && !M586TSC && !M586MMX && !MGEODE_LX && !MGEODEGX1 && !MCYRIXIII && !MELAN && !MWINCHIPC6 && !WINCHIP3D && !MK6
         select X86_PAE
         ---help---
           Select this if you have a 32-bit processor and more than 4
@@ -2265,7 +2307,7 @@ choice
           it can be used to assist security vulnerability exploitation.
 
           This setting can be changed at boot time via the kernel command
-          line parameter vsyscall=[native|emulate|none].
+          line parameter vsyscall=[emulate|none].
 
           On a system with recent enough glibc (2.14 or newer) and no
           static binaries, you can say None without a performance penalty
@@ -2273,15 +2315,6 @@ choice
 
           If unsure, select "Emulate".
 
-        config LEGACY_VSYSCALL_NATIVE
-                bool "Native"
-                help
-                  Actual executable code is located in the fixed vsyscall
-                  address mapping, implementing time() efficiently. Since
-                  this makes the mapping executable, it can be used during
-                  security vulnerability exploitation (traditionally as
-                  ROP gadgets). This configuration is not recommended.
-
         config LEGACY_VSYSCALL_EMULATE
                 bool "Emulate"
                 help
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 65a9a4716e34..638411f22267 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -315,19 +315,6 @@ config X86_L1_CACHE_SHIFT
         default "4" if MELAN || M486 || MGEODEGX1
         default "5" if MWINCHIP3D || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX
 
-config X86_PPRO_FENCE
-        bool "PentiumPro memory ordering errata workaround"
-        depends on M686 || M586MMX || M586TSC || M586 || M486 || MGEODEGX1
-        ---help---
-          Old PentiumPro multiprocessor systems had errata that could cause
-          memory operations to violate the x86 ordering standard in rare cases.
-          Enabling this option will attempt to work around some (but not all)
-          occurrences of this problem, at the cost of much heavier spinlock and
-          memory barrier operations.
-
-          If unsure, say n here. Even distro kernels should think twice before
-          enabling this: there are few systems, and an unlikely bug.
-
 config X86_F00F_BUG
         def_bool y
         depends on M586MMX || M586TSC || M586 || M486
@@ -374,7 +361,7 @@ config X86_TSC
 
 config X86_CMPXCHG64
         def_bool y
-        depends on X86_PAE || X86_64 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MATOM
+        depends on X86_PAE || X86_64 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586TSC || M586MMX || MATOM || MGEODE_LX || MGEODEGX1 || MK6 || MK7 || MK8
 
 # this should be set for all -march=.. options where the compiler
 # generates cmov.
@@ -385,7 +372,7 @@ config X86_CMOV
 config X86_MINIMUM_CPU_FAMILY
         int
         default "64" if X86_64
-        default "6" if X86_32 && X86_P6_NOP
+        default "6" if X86_32 && (MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MEFFICEON || MATOM || MCRUSOE || MCORE2 || MK7 || MK8)
         default "5" if X86_32 && X86_CMPXCHG64
         default "4"
 
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index fad55160dcb9..1c4d012550ec 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -223,6 +223,15 @@ KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr)
 
 LDFLAGS := -m elf_$(UTS_MACHINE)
 
+#
+# The 64-bit kernel must be aligned to 2MB.  Pass -z max-page-size=0x200000 to
+# the linker to force 2MB page size regardless of the default page size used
+# by the linker.
+#
+ifdef CONFIG_X86_64
+LDFLAGS += $(call ld-option, -z max-page-size=0x200000)
+endif
+
 # Speed up the build
 KBUILD_CFLAGS += -pipe
 # Workaround for a gcc prelease that unfortunately was shipped in a suse release
@@ -232,10 +241,9 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
 
 # Avoid indirect branches in kernel to deal with Spectre
 ifdef CONFIG_RETPOLINE
-    RETPOLINE_CFLAGS += $(call cc-option,-mindirect-branch=thunk-extern -mindirect-branch-register)
-    ifneq ($(RETPOLINE_CFLAGS),)
-        KBUILD_CFLAGS += $(RETPOLINE_CFLAGS) -DRETPOLINE
-    endif
+ifneq ($(RETPOLINE_CFLAGS),)
+  KBUILD_CFLAGS += $(RETPOLINE_CFLAGS) -DRETPOLINE
+endif
 endif
 
 archscripts: scripts_basic
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 353e20c3f114..886a9115af62 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -439,7 +439,7 @@ setup_uga32(void **uga_handle, unsigned long size, u32 *width, u32 *height)
         struct efi_uga_draw_protocol *uga = NULL, *first_uga;
         efi_guid_t uga_proto = EFI_UGA_PROTOCOL_GUID;
         unsigned long nr_ugas;
-        u32 *handles = (u32 *)uga_handle;;
+        u32 *handles = (u32 *)uga_handle;
         efi_status_t status = EFI_INVALID_PARAMETER;
         int i;
 
@@ -484,7 +484,7 @@ setup_uga64(void **uga_handle, unsigned long size, u32 *width, u32 *height)
         struct efi_uga_draw_protocol *uga = NULL, *first_uga;
         efi_guid_t uga_proto = EFI_UGA_PROTOCOL_GUID;
         unsigned long nr_ugas;
-        u64 *handles = (u64 *)uga_handle;;
+        u64 *handles = (u64 *)uga_handle;
         efi_status_t status = EFI_INVALID_PARAMETER;
         int i;
 
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 98761a1576ce..252fee320816 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -309,6 +309,10 @@ static void parse_elf(void *output)
 
                 switch (phdr->p_type) {
                 case PT_LOAD:
+#ifdef CONFIG_X86_64
+                        if ((phdr->p_align % 0x200000) != 0)
+                                error("Alignment of LOAD segment isn't multiple of 2MB");
+#endif
 #ifdef CONFIG_RELOCATABLE
                         dest = output;
                         dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
diff --git a/arch/x86/crypto/sha512-mb/sha512_mb_mgr_init_avx2.c b/arch/x86/crypto/sha512-mb/sha512_mb_mgr_init_avx2.c
index 36870b26067a..d08805032f01 100644
--- a/arch/x86/crypto/sha512-mb/sha512_mb_mgr_init_avx2.c
+++ b/arch/x86/crypto/sha512-mb/sha512_mb_mgr_init_avx2.c
@@ -57,10 +57,12 @@ void sha512_mb_mgr_init_avx2(struct sha512_mb_mgr *state)
 {
         unsigned int j;
 
-        state->lens[0] = 0;
-        state->lens[1] = 1;
-        state->lens[2] = 2;
-        state->lens[3] = 3;
+        /* initially all lanes are unused */
+        state->lens[0] = 0xFFFFFFFF00000000;
+        state->lens[1] = 0xFFFFFFFF00000001;
+        state->lens[2] = 0xFFFFFFFF00000002;
+        state->lens[3] = 0xFFFFFFFF00000003;
+
         state->unused_lanes = 0xFF03020100;
         for (j = 0; j < 4; j++)
                 state->ldata[j].job_in_lane = NULL;
diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h
index 3f48f695d5e6..be63330c5511 100644
--- a/arch/x86/entry/calling.h
+++ b/arch/x86/entry/calling.h
@@ -97,80 +97,78 @@ For 32-bit we have the following conventions - kernel is built with
 
 #define SIZEOF_PTREGS   21*8
 
-        .macro ALLOC_PT_GPREGS_ON_STACK
-        addq    $-(15*8), %rsp
-        .endm
-
-        .macro SAVE_C_REGS_HELPER offset=0 rax=1 rcx=1 r8910=1 r11=1
-        .if \r11
-        movq %r11, 6*8+\offset(%rsp)
-        .endif
-        .if \r8910
-        movq %r10, 7*8+\offset(%rsp)
-        movq %r9,  8*8+\offset(%rsp)
-        movq %r8,  9*8+\offset(%rsp)
-        .endif
-        .if \rax
-        movq %rax, 10*8+\offset(%rsp)
+.macro PUSH_AND_CLEAR_REGS rdx=%rdx rax=%rax save_ret=0
+        /*
+         * Push registers and sanitize registers of values that a
+         * speculation attack might otherwise want to exploit. The
+         * lower registers are likely clobbered well before they
+         * could be put to use in a speculative execution gadget.
+         * Interleave XOR with PUSH for better uop scheduling:
+         */
+        .if \save_ret
+        pushq   %rsi            /* pt_regs->si */
+        movq    8(%rsp), %rsi   /* temporarily store the return address in %rsi */
+        movq    %rdi, 8(%rsp)   /* pt_regs->di (overwriting original return address) */
+        .else
+        pushq   %rdi            /* pt_regs->di */
+        pushq   %rsi            /* pt_regs->si */
         .endif
-        .if \rcx
-        movq %rcx, 11*8+\offset(%rsp)
+        pushq   \rdx            /* pt_regs->dx */
+        pushq   %rcx            /* pt_regs->cx */
+        pushq   \rax            /* pt_regs->ax */
+        pushq   %r8             /* pt_regs->r8 */
+        xorl    %r8d, %r8d      /* nospec   r8 */
+        pushq   %r9             /* pt_regs->r9 */
+        xorl    %r9d, %r9d      /* nospec   r9 */
+        pushq   %r10            /* pt_regs->r10 */
+        xorl    %r10d, %r10d    /* nospec   r10 */
+        pushq   %r11            /* pt_regs->r11 */
+        xorl    %r11d, %r11d    /* nospec   r11*/
+        pushq   %rbx            /* pt_regs->rbx */
+        xorl    %ebx, %ebx      /* nospec   rbx*/
+        pushq   %rbp            /* pt_regs->rbp */
+        xorl    %ebp, %ebp      /* nospec   rbp*/
+        pushq   %r12            /* pt_regs->r12 */
+        xorl    %r12d, %r12d    /* nospec   r12*/
+        pushq   %r13            /* pt_regs->r13 */
+        xorl    %r13d, %r13d    /* nospec   r13*/
+        pushq   %r14            /* pt_regs->r14 */
+        xorl    %r14d, %r14d    /* nospec   r14*/
+        pushq   %r15            /* pt_regs->r15 */
+        xorl    %r15d, %r15d    /* nospec   r15*/
+        UNWIND_HINT_REGS
+        .if \save_ret
+        pushq   %rsi            /* return address on top of stack */
         .endif
-        movq %rdx, 12*8+\offset(%rsp)
-        movq %rsi, 13*8+\offset(%rsp)
-        movq %rdi, 14*8+\offset(%rsp)
-        UNWIND_HINT_REGS offset=\offset extra=0
-        .endm
-        .macro SAVE_C_REGS offset=0
-        SAVE_C_REGS_HELPER \offset, 1, 1, 1, 1
-        .endm
-        .macro SAVE_C_REGS_EXCEPT_RAX_RCX offset=0
-        SAVE_C_REGS_HELPER \offset, 0, 0, 1, 1
-        .endm
-        .macro SAVE_C_REGS_EXCEPT_R891011
-        SAVE_C_REGS_HELPER 0, 1, 1, 0, 0
-        .endm
-        .macro SAVE_C_REGS_EXCEPT_RCX_R891011
-        SAVE_C_REGS_HELPER 0, 1, 0, 0, 0
-        .endm
-        .macro SAVE_C_REGS_EXCEPT_RAX_RCX_R11
-        SAVE_C_REGS_HELPER 0, 0, 0, 1, 0
-        .endm
-
-        .macro SAVE_EXTRA_REGS offset=0
-        movq %r15, 0*8+\offset(%rsp)
-        movq %r14, 1*8+\offset(%rsp)
-        movq %r13, 2*8+\offset(%rsp)
-        movq %r12, 3*8+\offset(%rsp)
-        movq %rbp, 4*8+\offset(%rsp)
-        movq %rbx, 5*8+\offset(%rsp)
-        UNWIND_HINT_REGS offset=\offset
-        .endm
-
-        .macro POP_EXTRA_REGS
+.endm
+
+.macro POP_REGS pop_rdi=1 skip_r11rcx=0
         popq %r15
         popq %r14
         popq %r13
         popq %r12
         popq %rbp
         popq %rbx
-        .endm
-
-        .macro POP_C_REGS
+        .if \skip_r11rcx
+        popq %rsi
+        .else
         popq %r11
+        .endif
         popq %r10
         popq %r9
         popq %r8
         popq %rax
+        .if \skip_r11rcx
+        popq %rsi
+        .else
         popq %rcx
+        .endif
         popq %rdx
         popq %rsi
+        .if \pop_rdi
         popq %rdi
-        .endm
-
-        .macro icebp
-        .byte 0xf1
-        .endm
+        .endif
+.endm
 
 /*
  * This is a sneaky trick to help the unwinder find pt_regs on the stack.  The
@@ -178,17 +176,12 @@ For 32-bit we have the following conventions - kernel is built with
  * is just setting the LSB, which makes it an invalid stack address and is also
  * a signal to the unwinder that it's a pt_regs pointer in disguise.
  *
- * NOTE: This macro must be used *after* SAVE_EXTRA_REGS because it corrupts
+ * NOTE: This macro must be used *after* PUSH_AND_CLEAR_REGS because it corrupts
  * the original rbp.
  */
 .macro ENCODE_FRAME_POINTER ptregs_offset=0
 #ifdef CONFIG_FRAME_POINTER
-        .if \ptregs_offset
-                leaq \ptregs_offset(%rsp), %rbp
-        .else
-                mov %rsp, %rbp
-        .endif
-        orq     $0x1, %rbp
+        leaq 1+\ptregs_offset(%rsp), %rbp
 #endif
 .endm
 
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 16c2c022540d..6ad064c8cf35 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -252,8 +252,7 @@ ENTRY(__switch_to_asm)
          * exist, overwrite the RSB with entries which capture
          * speculative execution to prevent attack.
          */
-        /* Clobbers %ebx */
-        FILL_RETURN_BUFFER RSB_CLEAR_LOOPS, X86_FEATURE_RSB_CTXSW
+        FILL_RETURN_BUFFER %ebx, RSB_CLEAR_LOOPS, X86_FEATURE_RSB_CTXSW
 #endif
 
         /* restore callee-saved registers */
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 30c8c5344c4a..18ed349b4f83 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -55,7 +55,7 @@ END(native_usergs_sysret64)
 
 .macro TRACE_IRQS_FLAGS flags:req
 #ifdef CONFIG_TRACE_IRQFLAGS
-        bt      $9, \flags              /* interrupts off? */
+        btl     $9, \flags              /* interrupts off? */
         jnc     1f
         TRACE_IRQS_ON
 1:
@@ -213,7 +213,7 @@ ENTRY(entry_SYSCALL_64)
 
         swapgs
         /*
-         * This path is not taken when PAGE_TABLE_ISOLATION is disabled so it
+         * This path is only taken when PAGE_TABLE_ISOLATION is disabled so it
          * is not required to switch CR3.
          */
         movq    %rsp, PER_CPU_VAR(rsp_scratch)
@@ -227,22 +227,8 @@ ENTRY(entry_SYSCALL_64)
         pushq   %rcx                            /* pt_regs->ip */
 GLOBAL(entry_SYSCALL_64_after_hwframe)
         pushq   %rax                            /* pt_regs->orig_ax */
-        pushq   %rdi                            /* pt_regs->di */
-        pushq   %rsi                            /* pt_regs->si */
-        pushq   %rdx                            /* pt_regs->dx */
-        pushq   %rcx                            /* pt_regs->cx */
-        pushq   $-ENOSYS                        /* pt_regs->ax */
-        pushq   %r8                             /* pt_regs->r8 */
-        pushq   %r9                             /* pt_regs->r9 */
-        pushq   %r10                            /* pt_regs->r10 */
-        pushq   %r11                            /* pt_regs->r11 */
-        pushq   %rbx                            /* pt_regs->rbx */
-        pushq   %rbp                            /* pt_regs->rbp */
-        pushq   %r12                            /* pt_regs->r12 */
-        pushq   %r13                            /* pt_regs->r13 */
-        pushq   %r14                            /* pt_regs->r14 */
-        pushq   %r15                            /* pt_regs->r15 */
-        UNWIND_HINT_REGS
+
+        PUSH_AND_CLEAR_REGS rax=$-ENOSYS
 
         TRACE_IRQS_OFF
 
@@ -321,15 +307,7 @@ GLOBAL(entry_SYSCALL_64_after_hwframe)
 syscall_return_via_sysret:
         /* rcx and r11 are already restored (see code above) */
         UNWIND_HINT_EMPTY
-        POP_EXTRA_REGS
-        popq    %rsi    /* skip r11 */
-        popq    %r10
-        popq    %r9
-        popq    %r8
-        popq    %rax
-        popq    %rsi    /* skip rcx */
-        popq    %rdx
-        popq    %rsi
+        POP_REGS pop_rdi=0 skip_r11rcx=1
 
         /*
          * Now all regs are restored except RSP and RDI.
@@ -386,8 +364,7 @@ ENTRY(__switch_to_asm)
          * exist, overwrite the RSB with entries which capture
          * speculative execution to prevent attack.
          */
-        /* Clobbers %rbx */
-        FILL_RETURN_BUFFER RSB_CLEAR_LOOPS, X86_FEATURE_RSB_CTXSW
+        FILL_RETURN_BUFFER %r12, RSB_CLEAR_LOOPS, X86_FEATURE_RSB_CTXSW
 #endif
 
         /* restore callee-saved registers */
@@ -471,9 +448,19 @@ END(irq_entries_start)
  *
  * The invariant is that, if irq_count != -1, then the IRQ stack is in use.
  */
-.macro ENTER_IRQ_STACK regs=1 old_rsp
+.macro ENTER_IRQ_STACK regs=1 old_rsp save_ret=0
         DEBUG_ENTRY_ASSERT_IRQS_OFF
+
+        .if \save_ret
+        /*
+         * If save_ret is set, the original stack contains one additional
+         * entry -- the return address. Therefore, move the address one
+         * entry below %rsp to \old_rsp.
+         */
+        leaq    8(%rsp), \old_rsp
+        .else
         movq    %rsp, \old_rsp
+        .endif
 
         .if \regs
         UNWIND_HINT_REGS base=\old_rsp
@@ -519,6 +506,15 @@ END(irq_entries_start)
         .if \regs
         UNWIND_HINT_REGS indirect=1
         .endif
+
+        .if \save_ret
+        /*
+         * Push the return address to the stack. This return address can
+         * be found at the "real" original RSP, which was offset by 8 at
+         * the beginning of this macro.
+         */
+        pushq   -8(\old_rsp)
+        .endif
 .endm
 
 /*
@@ -542,29 +538,65 @@ END(irq_entries_start)
 .endm
 
 /*
- * Interrupt entry/exit.
- *
- * Interrupt entry points save only callee clobbered registers in fast path.
+ * Interrupt entry helper function.
  *
- * Entry runs with interrupts off.
+ * Entry runs with interrupts off. Stack layout at entry:
+ * +----------------------------------------------------+
+ * | regs->ss                                           |
+ * | regs->rsp                                          |
+ * | regs->eflags                                       |
+ * | regs->cs                                           |
+ * | regs->ip                                           |
+ * +----------------------------------------------------+
+ * | regs->orig_ax = ~(interrupt number)                |
+ * +----------------------------------------------------+
+ * | return address                                     |
+ * +----------------------------------------------------+
  */
-
-/* 0(%rsp): ~(interrupt number) */
-        .macro interrupt func
+ENTRY(interrupt_entry)
+        UNWIND_HINT_FUNC
+        ASM_CLAC
         cld
 
-        testb   $3, CS-ORIG_RAX(%rsp)
+        testb   $3, CS-ORIG_RAX+8(%rsp)
         jz      1f
         SWAPGS
-        call    switch_to_thread_stack
+
+        /*
+         * Switch to the thread stack. The IRET frame and orig_ax are
+         * on the stack, as well as the return address. RDI..R12 are
+         * not (yet) on the stack and space has not (yet) been
+         * allocated for them.
+         */
+        pushq   %rdi
+
+        /* Need to switch before accessing the thread stack. */
+        SWITCH_TO_KERNEL_CR3 scratch_reg=%rdi
+        movq    %rsp, %rdi
+        movq    PER_CPU_VAR(cpu_current_top_of_stack), %rsp
+
+         /*
+          * We have RDI, return address, and orig_ax on the stack on
+          * top of the IRET frame. That means offset=24
+          */
+        UNWIND_HINT_IRET_REGS base=%rdi offset=24
+
+        pushq   7*8(%rdi)               /* regs->ss */
+        pushq   6*8(%rdi)               /* regs->rsp */
+        pushq   5*8(%rdi)               /* regs->eflags */
+        pushq   4*8(%rdi)               /* regs->cs */
+        pushq   3*8(%rdi)               /* regs->ip */
+        pushq   2*8(%rdi)               /* regs->orig_ax */
+        pushq   8(%rdi)                 /* return address */
+        UNWIND_HINT_FUNC
+
+        movq    (%rdi), %rdi
 1:
 
-        ALLOC_PT_GPREGS_ON_STACK
-        SAVE_C_REGS
-        SAVE_EXTRA_REGS
-        ENCODE_FRAME_POINTER
+        PUSH_AND_CLEAR_REGS save_ret=1
+        ENCODE_FRAME_POINTER 8
 
-        testb   $3, CS(%rsp)
+        testb   $3, CS+8(%rsp)
         jz      1f
 
         /*
@@ -572,7 +604,7 @@ END(irq_entries_start)
          *
          * We need to tell lockdep that IRQs are off.  We can't do this until
          * we fix gsbase, and we should do it before enter_from_user_mode
-         * (which can take locks).  Since TRACE_IRQS_OFF idempotent,
+         * (which can take locks).  Since TRACE_IRQS_OFF is idempotent,
          * the simplest way to handle it is to just call it twice if
          * we enter from user mode.  There's no reason to optimize this since
          * TRACE_IRQS_OFF is a no-op if lockdep is off.
@@ -582,12 +614,15 @@ END(irq_entries_start)
         CALL_enter_from_user_mode
 
 1:
-        ENTER_IRQ_STACK old_rsp=%rdi
+        ENTER_IRQ_STACK old_rsp=%rdi save_ret=1
         /* We entered an interrupt context - irqs are off: */
         TRACE_IRQS_OFF
 
-        call    \func   /* rdi points to pt_regs */
-        .endm
+        ret
+END(interrupt_entry)
+
+
+/* Interrupt entry/exit. */
 
         /*
          * The interrupt stubs push (~vector+0x80) onto the stack and
@@ -595,9 +630,10 @@ END(irq_entries_start)
          */
         .p2align CONFIG_X86_L1_CACHE_SHIFT
 common_interrupt:
-        ASM_CLAC
         addq    $-0x80, (%rsp)                  /* Adjust vector to [-256, -1] range */
-        interrupt do_IRQ
+        call    interrupt_entry
+        UNWIND_HINT_REGS indirect=1
+        call    do_IRQ  /* rdi points to pt_regs */
         /* 0(%rsp): old RSP */
 ret_from_intr:
         DISABLE_INTERRUPTS(CLBR_ANY)
@@ -622,15 +658,7 @@ GLOBAL(swapgs_restore_regs_and_return_to_usermode)
         ud2
 1:
 #endif
-        POP_EXTRA_REGS
-        popq    %r11
-        popq    %r10
-        popq    %r9
-        popq    %r8
-        popq    %rax
-        popq    %rcx
-        popq    %rdx
-        popq    %rsi
+        POP_REGS pop_rdi=0
 
         /*
          * The stack is now user RDI, orig_ax, RIP, CS, EFLAGS, RSP, SS.
@@ -688,8 +716,7 @@ GLOBAL(restore_regs_and_return_to_kernel)
         ud2
 1:
 #endif
-        POP_EXTRA_REGS
-        POP_C_REGS
+        POP_REGS
         addq    $8, %rsp        /* skip regs->orig_ax */
         /*
          * ARCH_HAS_MEMBARRIER_SYNC_CORE rely on IRET core serialization
@@ -799,10 +826,11 @@ END(common_interrupt)
 .macro apicinterrupt3 num sym do_sym
 ENTRY(\sym)
         UNWIND_HINT_IRET_REGS
-        ASM_CLAC
         pushq   $~(\num)
 .Lcommon_\sym:
-        interrupt \do_sym
+        call    interrupt_entry
+        UNWIND_HINT_REGS indirect=1
+        call    \do_sym /* rdi points to pt_regs */
         jmp     ret_from_intr
 END(\sym)
 .endm
@@ -865,34 +893,6 @@ apicinterrupt IRQ_WORK_VECTOR			irq_work_interrupt		smp_irq_work_interrupt
  */
 #define CPU_TSS_IST(x) PER_CPU_VAR(cpu_tss_rw) + (TSS_ist + ((x) - 1) * 8)
 
-/*
- * Switch to the thread stack.  This is called with the IRET frame and
- * orig_ax on the stack.  (That is, RDI..R12 are not on the stack and
- * space has not been allocated for them.)
- */
-ENTRY(switch_to_thread_stack)
-        UNWIND_HINT_FUNC
-
-        pushq   %rdi
-        /* Need to switch before accessing the thread stack. */
-        SWITCH_TO_KERNEL_CR3 scratch_reg=%rdi
-        movq    %rsp, %rdi
-        movq    PER_CPU_VAR(cpu_current_top_of_stack), %rsp
-        UNWIND_HINT sp_offset=16 sp_reg=ORC_REG_DI
-
-        pushq   7*8(%rdi)               /* regs->ss */
-        pushq   6*8(%rdi)               /* regs->rsp */
-        pushq   5*8(%rdi)               /* regs->eflags */
-        pushq   4*8(%rdi)               /* regs->cs */
-        pushq   3*8(%rdi)               /* regs->ip */
-        pushq   2*8(%rdi)               /* regs->orig_ax */
-        pushq   8(%rdi)                 /* return address */
-        UNWIND_HINT_FUNC
-
-        movq    (%rdi), %rdi
-        ret
-END(switch_to_thread_stack)
-
 .macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1
 ENTRY(\sym)
         UNWIND_HINT_IRET_REGS offset=\has_error_code*8
@@ -908,10 +908,8 @@ ENTRY(\sym)
         pushq   $-1                             /* ORIG_RAX: no syscall to restart */
         .endif
 
-        ALLOC_PT_GPREGS_ON_STACK
-
         .if \paranoid < 2
-        testb   $3, CS(%rsp)                    /* If coming from userspace, switch stacks */
+        testb   $3, CS-ORIG_RAX(%rsp)           /* If coming from userspace, switch stacks */
         jnz     .Lfrom_usermode_switch_stack_\@
         .endif
 
@@ -1121,9 +1119,7 @@ ENTRY(xen_failsafe_callback)
         addq    $0x30, %rsp
         UNWIND_HINT_IRET_REGS
         pushq   $-1 /* orig_ax = -1 => not a system call */
-        ALLOC_PT_GPREGS_ON_STACK
-        SAVE_C_REGS
-        SAVE_EXTRA_REGS
+        PUSH_AND_CLEAR_REGS
         ENCODE_FRAME_POINTER
         jmp     error_exit
 END(xen_failsafe_callback)
@@ -1142,7 +1138,7 @@ apicinterrupt3 HYPERV_REENLIGHTENMENT_VECTOR \
 #endif /* CONFIG_HYPERV */
 
 idtentry debug                  do_debug                has_error_code=0        paranoid=1 shift_ist=DEBUG_STACK
-idtentry int3                   do_int3                 has_error_code=0        paranoid=1 shift_ist=DEBUG_STACK
+idtentry int3                   do_int3                 has_error_code=0
 idtentry stack_segment          do_stack_segment        has_error_code=1
 
 #ifdef CONFIG_XEN
@@ -1170,8 +1166,7 @@ idtentry machine_check		do_mce			has_error_code=0	paranoid=1
 ENTRY(paranoid_entry)
         UNWIND_HINT_FUNC
         cld
-        SAVE_C_REGS 8
-        SAVE_EXTRA_REGS 8
+        PUSH_AND_CLEAR_REGS save_ret=1
         ENCODE_FRAME_POINTER 8
         movl    $1, %ebx
         movl    $MSR_GS_BASE, %ecx
@@ -1211,21 +1206,20 @@ ENTRY(paranoid_exit)
         jmp     .Lparanoid_exit_restore
 .Lparanoid_exit_no_swapgs:
         TRACE_IRQS_IRETQ_DEBUG
+        RESTORE_CR3     scratch_reg=%rbx save_reg=%r14
 .Lparanoid_exit_restore:
         jmp restore_regs_and_return_to_kernel
 END(paranoid_exit)
 
 /*
- * Save all registers in pt_regs, and switch gs if needed.
+ * Save all registers in pt_regs, and switch GS if needed.
  * Return: EBX=0: came from user mode; EBX=1: otherwise
  */
 ENTRY(error_entry)
         UNWIND_HINT_FUNC
         cld
-        SAVE_C_REGS 8
-        SAVE_EXTRA_REGS 8
+        PUSH_AND_CLEAR_REGS save_ret=1
         ENCODE_FRAME_POINTER 8
-        xorl    %ebx, %ebx
         testb   $3, CS+8(%rsp)
         jz      .Lerror_kernelspace
 
@@ -1406,22 +1400,7 @@ ENTRY(nmi)
         pushq   1*8(%rdx)       /* pt_regs->rip */
         UNWIND_HINT_IRET_REGS
         pushq   $-1             /* pt_regs->orig_ax */
-        pushq   %rdi            /* pt_regs->di */
-        pushq   %rsi            /* pt_regs->si */
-        pushq   (%rdx)          /* pt_regs->dx */
-        pushq   %rcx            /* pt_regs->cx */
-        pushq   %rax            /* pt_regs->ax */
-        pushq   %r8             /* pt_regs->r8 */
-        pushq   %r9             /* pt_regs->r9 */
-        pushq   %r10            /* pt_regs->r10 */
-        pushq   %r11            /* pt_regs->r11 */
-        pushq   %rbx            /* pt_regs->rbx */
-        pushq   %rbp            /* pt_regs->rbp */
-        pushq   %r12            /* pt_regs->r12 */
-        pushq   %r13            /* pt_regs->r13 */
-        pushq   %r14            /* pt_regs->r14 */
-        pushq   %r15            /* pt_regs->r15 */
-        UNWIND_HINT_REGS
+        PUSH_AND_CLEAR_REGS rdx=(%rdx)
         ENCODE_FRAME_POINTER
 
         /*
@@ -1631,7 +1610,6 @@ end_repeat_nmi:
          * frame to point back to repeat_nmi.
          */
         pushq   $-1                             /* ORIG_RAX: no syscall to restart */
-        ALLOC_PT_GPREGS_ON_STACK
 
         /*
          * Use paranoid_entry to handle SWAPGS, but no need to use paranoid_exit
@@ -1655,8 +1633,7 @@ end_repeat_nmi:
 nmi_swapgs:
         SWAPGS_UNSAFE_STACK
 nmi_restore:
-        POP_EXTRA_REGS
-        POP_C_REGS
+        POP_REGS
 
         /*
          * Skip orig_ax and the "outermost" frame to point RSP at the "iret"
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index 98d5358e4041..08425c42f8b7 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -85,15 +85,25 @@ ENTRY(entry_SYSENTER_compat)
         pushq   %rcx                    /* pt_regs->cx */
         pushq   $-ENOSYS                /* pt_regs->ax */
         pushq   $0                      /* pt_regs->r8  = 0 */
+        xorl    %r8d, %r8d              /* nospec   r8 */
         pushq   $0                      /* pt_regs->r9  = 0 */
+        xorl    %r9d, %r9d              /* nospec   r9 */
         pushq   $0                      /* pt_regs->r10 = 0 */
+        xorl    %r10d, %r10d            /* nospec   r10 */
         pushq   $0                      /* pt_regs->r11 = 0 */
+        xorl    %r11d, %r11d            /* nospec   r11 */
         pushq   %rbx                    /* pt_regs->rbx */
+        xorl    %ebx, %ebx              /* nospec   rbx */
         pushq   %rbp                    /* pt_regs->rbp (will be overwritten) */
+        xorl    %ebp, %ebp              /* nospec   rbp */
         pushq   $0                      /* pt_regs->r12 = 0 */
+        xorl    %r12d, %r12d            /* nospec   r12 */
         pushq   $0                      /* pt_regs->r13 = 0 */
+        xorl    %r13d, %r13d            /* nospec   r13 */
         pushq   $0                      /* pt_regs->r14 = 0 */
+        xorl    %r14d, %r14d            /* nospec   r14 */
         pushq   $0                      /* pt_regs->r15 = 0 */
+        xorl    %r15d, %r15d            /* nospec   r15 */
         cld
 
         /*
@@ -214,15 +224,25 @@ GLOBAL(entry_SYSCALL_compat_after_hwframe)
         pushq   %rbp                    /* pt_regs->cx (stashed in bp) */
         pushq   $-ENOSYS                /* pt_regs->ax */
         pushq   $0                      /* pt_regs->r8  = 0 */
+        xorl    %r8d, %r8d              /* nospec   r8 */
         pushq   $0                      /* pt_regs->r9  = 0 */
+        xorl    %r9d, %r9d              /* nospec   r9 */
         pushq   $0                      /* pt_regs->r10 = 0 */
+        xorl    %r10d, %r10d            /* nospec   r10 */
         pushq   $0                      /* pt_regs->r11 = 0 */
+        xorl    %r11d, %r11d            /* nospec   r11 */
         pushq   %rbx                    /* pt_regs->rbx */
+        xorl    %ebx, %ebx              /* nospec   rbx */
         pushq   %rbp                    /* pt_regs->rbp (will be overwritten) */
+        xorl    %ebp, %ebp              /* nospec   rbp */
         pushq   $0                      /* pt_regs->r12 = 0 */
+        xorl    %r12d, %r12d            /* nospec   r12 */
         pushq   $0                      /* pt_regs->r13 = 0 */
+        xorl    %r13d, %r13d            /* nospec   r13 */
         pushq   $0                      /* pt_regs->r14 = 0 */
+        xorl    %r14d, %r14d            /* nospec   r14 */
         pushq   $0                      /* pt_regs->r15 = 0 */
+        xorl    %r15d, %r15d            /* nospec   r15 */
 
         /*
          * User mode is traced as though IRQs are on, and SYSENTER
@@ -278,9 +298,9 @@ sysret32_from_system_call:
          */
         SWITCH_TO_USER_CR3_NOSTACK scratch_reg=%r8 scratch_reg2=%r9
 
-        xorq    %r8, %r8
-        xorq    %r9, %r9
-        xorq    %r10, %r10
+        xorl    %r8d, %r8d
+        xorl    %r9d, %r9d
+        xorl    %r10d, %r10d
         swapgs
         sysretl
 END(entry_SYSCALL_compat)
@@ -327,26 +347,47 @@ ENTRY(entry_INT80_compat)
          */
         movl    %eax, %eax
 
+        /* switch to thread stack expects orig_ax and rdi to be pushed */
         pushq   %rax                    /* pt_regs->orig_ax */
+        pushq   %rdi                    /* pt_regs->di */
 
-        /* switch to thread stack expects orig_ax to be pushed */
-        call    switch_to_thread_stack
+        /* Need to switch before accessing the thread stack. */
+        SWITCH_TO_KERNEL_CR3 scratch_reg=%rdi
+        movq    %rsp, %rdi
+        movq    PER_CPU_VAR(cpu_current_top_of_stack), %rsp
 
-        pushq   %rdi                    /* pt_regs->di */
+        pushq   6*8(%rdi)               /* regs->ss */
+        pushq   5*8(%rdi)               /* regs->rsp */
+        pushq   4*8(%rdi)               /* regs->eflags */
+        pushq   3*8(%rdi)               /* regs->cs */
+        pushq   2*8(%rdi)               /* regs->ip */
+        pushq   1*8(%rdi)               /* regs->orig_ax */
+
+        pushq   (%rdi)                  /* pt_regs->di */
         pushq   %rsi                    /* pt_regs->si */
         pushq   %rdx                    /* pt_regs->dx */
         pushq   %rcx                    /* pt_regs->cx */
         pushq   $-ENOSYS                /* pt_regs->ax */
         pushq   $0                      /* pt_regs->r8  = 0 */
+        xorl    %r8d, %r8d              /* nospec   r8 */
         pushq   $0                      /* pt_regs->r9  = 0 */
+        xorl    %r9d, %r9d              /* nospec   r9 */
         pushq   $0                      /* pt_regs->r10 = 0 */
+        xorl    %r10d, %r10d            /* nospec   r10 */
         pushq   $0                      /* pt_regs->r11 = 0 */
+        xorl    %r11d, %r11d            /* nospec   r11 */
         pushq   %rbx                    /* pt_regs->rbx */
+        xorl    %ebx, %ebx              /* nospec   rbx */
         pushq   %rbp                    /* pt_regs->rbp */
+        xorl    %ebp, %ebp              /* nospec   rbp */
         pushq   %r12                    /* pt_regs->r12 */
+        xorl    %r12d, %r12d            /* nospec   r12 */
         pushq   %r13                    /* pt_regs->r13 */
+        xorl    %r13d, %r13d            /* nospec   r13 */
         pushq   %r14                    /* pt_regs->r14 */
+        xorl    %r14d, %r14d            /* nospec   r14 */
         pushq   %r15                    /* pt_regs->r15 */
+        xorl    %r15d, %r15d            /* nospec   r15 */
         cld
 
         /*
@@ -363,15 +404,3 @@ ENTRY(entry_INT80_compat)
         TRACE_IRQS_ON
         jmp     swapgs_restore_regs_and_return_to_usermode
 END(entry_INT80_compat)
-
-ENTRY(stub32_clone)
-        /*
-         * The 32-bit clone ABI is: clone(..., int tls_val, int *child_tidptr).
-         * The 64-bit clone ABI is: clone(..., int *child_tidptr, int tls_val).
-         *
-         * The native 64-bit kernel's sys_clone() implements the latter,
-         * so we need to swap arguments here before calling it:
-         */
-        xchg    %r8, %rcx
-        jmp     sys_clone
-ENDPROC(stub32_clone)
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index 448ac2161112..2a5e99cff859 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -8,12 +8,12 @@
 #
 0       i386    restart_syscall         sys_restart_syscall
 1       i386    exit                    sys_exit
-2       i386    fork                    sys_fork                        sys_fork
+2       i386    fork                    sys_fork
 3       i386    read                    sys_read
 4       i386    write                   sys_write
 5       i386    open                    sys_open                        compat_sys_open
 6       i386    close                   sys_close
-7       i386    waitpid                 sys_waitpid                     sys32_waitpid
+7       i386    waitpid                 sys_waitpid                     compat_sys_x86_waitpid
 8       i386    creat                   sys_creat
 9       i386    link                    sys_link
 10      i386    unlink                  sys_unlink
@@ -78,7 +78,7 @@
 69      i386    ssetmask                sys_ssetmask
 70      i386    setreuid                sys_setreuid16
 71      i386    setregid                sys_setregid16
-72      i386    sigsuspend              sys_sigsuspend                  sys_sigsuspend
+72      i386    sigsuspend              sys_sigsuspend
 73      i386    sigpending              sys_sigpending                  compat_sys_sigpending
 74      i386    sethostname             sys_sethostname
 75      i386    setrlimit               sys_setrlimit                   compat_sys_setrlimit
@@ -96,7 +96,7 @@
 87      i386    swapon                  sys_swapon
 88      i386    reboot                  sys_reboot
 89      i386    readdir                 sys_old_readdir                 compat_sys_old_readdir
-90      i386    mmap                    sys_old_mmap                    sys32_mmap
+90      i386    mmap                    sys_old_mmap                    compat_sys_x86_mmap
 91      i386    munmap                  sys_munmap
 92      i386    truncate                sys_truncate                    compat_sys_truncate
 93      i386    ftruncate               sys_ftruncate                   compat_sys_ftruncate
@@ -126,7 +126,7 @@
 117     i386    ipc                     sys_ipc                         compat_sys_ipc
 118     i386    fsync                   sys_fsync
 119     i386    sigreturn               sys_sigreturn                   sys32_sigreturn
-120     i386    clone                   sys_clone                       stub32_clone
+120     i386    clone                   sys_clone                       compat_sys_x86_clone
 121     i386    setdomainname           sys_setdomainname
 122     i386    uname                   sys_newuname
 123     i386    modify_ldt              sys_modify_ldt
@@ -186,8 +186,8 @@
 177     i386    rt_sigtimedwait         sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
 178     i386    rt_sigqueueinfo         sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
 179     i386    rt_sigsuspend           sys_rt_sigsuspend
-180     i386    pread64                 sys_pread64                     sys32_pread
-181     i386    pwrite64                sys_pwrite64                    sys32_pwrite
+180     i386    pread64                 sys_pread64                     compat_sys_x86_pread
+181     i386    pwrite64                sys_pwrite64                    compat_sys_x86_pwrite
 182     i386    chown                   sys_chown16
 183     i386    getcwd                  sys_getcwd
 184     i386    capget                  sys_capget
@@ -196,14 +196,14 @@
 187     i386    sendfile                sys_sendfile                    compat_sys_sendfile
 188     i386    getpmsg
 189     i386    putpmsg
-190     i386    vfork                   sys_vfork                       sys_vfork
+190     i386    vfork                   sys_vfork
 191     i386    ugetrlimit              sys_getrlimit                   compat_sys_getrlimit
 192     i386    mmap2                   sys_mmap_pgoff
-193     i386    truncate64              sys_truncate64                  sys32_truncate64
-194     i386    ftruncate64             sys_ftruncate64                 sys32_ftruncate64
-195     i386    stat64                  sys_stat64                      sys32_stat64
-196     i386    lstat64                 sys_lstat64                     sys32_lstat64
-197     i386    fstat64                 sys_fstat64                     sys32_fstat64
+193     i386    truncate64              sys_truncate64                  compat_sys_x86_truncate64
+194     i386    ftruncate64             sys_ftruncate64                 compat_sys_x86_ftruncate64
+195     i386    stat64                  sys_stat64                      compat_sys_x86_stat64
+196     i386    lstat64                 sys_lstat64                     compat_sys_x86_lstat64
+197     i386    fstat64                 sys_fstat64                     compat_sys_x86_fstat64
 198     i386    lchown32                sys_lchown
 199     i386    getuid32                sys_getuid
 200     i386    getgid32                sys_getgid
@@ -231,7 +231,7 @@
 # 222 is unused
 # 223 is unused
 224     i386    gettid                  sys_gettid
-225     i386    readahead               sys_readahead                   sys32_readahead
+225     i386    readahead               sys_readahead                   compat_sys_x86_readahead
 226     i386    setxattr                sys_setxattr
 227     i386    lsetxattr               sys_lsetxattr
 228     i386    fsetxattr               sys_fsetxattr
@@ -256,7 +256,7 @@
 247     i386    io_getevents            sys_io_getevents                compat_sys_io_getevents
 248     i386    io_submit               sys_io_submit                   compat_sys_io_submit
 249     i386    io_cancel               sys_io_cancel
-250     i386    fadvise64               sys_fadvise64                   sys32_fadvise64
+250     i386    fadvise64               sys_fadvise64                   compat_sys_x86_fadvise64
 # 251 is available for reuse (was briefly sys_set_zone_reclaim)
 252     i386    exit_group              sys_exit_group
 253     i386    lookup_dcookie          sys_lookup_dcookie              compat_sys_lookup_dcookie
@@ -278,7 +278,7 @@
 269     i386    fstatfs64               sys_fstatfs64                   compat_sys_fstatfs64
 270     i386    tgkill                  sys_tgkill
 271     i386    utimes                  sys_utimes                      compat_sys_utimes
-272     i386    fadvise64_64            sys_fadvise64_64                sys32_fadvise64_64
+272     i386    fadvise64_64            sys_fadvise64_64                compat_sys_x86_fadvise64_64
 273     i386    vserver
 274     i386    mbind                   sys_mbind
 275     i386    get_mempolicy           sys_get_mempolicy               compat_sys_get_mempolicy
@@ -306,7 +306,7 @@
 297     i386    mknodat                 sys_mknodat
 298     i386    fchownat                sys_fchownat
 299     i386    futimesat               sys_futimesat                   compat_sys_futimesat
-300     i386    fstatat64               sys_fstatat64                   sys32_fstatat
+300     i386    fstatat64               sys_fstatat64                   compat_sys_x86_fstatat
 301     i386    unlinkat                sys_unlinkat
 302     i386    renameat                sys_renameat
 303     i386    linkat                  sys_linkat
@@ -320,7 +320,7 @@
 311     i386    set_robust_list         sys_set_robust_list             compat_sys_set_robust_list
 312     i386    get_robust_list         sys_get_robust_list             compat_sys_get_robust_list
 313     i386    splice                  sys_splice
-314     i386    sync_file_range         sys_sync_file_range             sys32_sync_file_range
+314     i386    sync_file_range         sys_sync_file_range             compat_sys_x86_sync_file_range
 315     i386    tee                     sys_tee
 316     i386    vmsplice                sys_vmsplice                    compat_sys_vmsplice
 317     i386    move_pages              sys_move_pages                  compat_sys_move_pages
@@ -330,7 +330,7 @@
 321     i386    signalfd                sys_signalfd                    compat_sys_signalfd
 322     i386    timerfd_create          sys_timerfd_create
 323     i386    eventfd                 sys_eventfd
-324     i386    fallocate               sys_fallocate                   sys32_fallocate
+324     i386    fallocate               sys_fallocate                   compat_sys_x86_fallocate
 325     i386    timerfd_settime         sys_timerfd_settime             compat_sys_timerfd_settime
 326     i386    timerfd_gettime         sys_timerfd_gettime             compat_sys_timerfd_gettime
 327     i386    signalfd4               sys_signalfd4                   compat_sys_signalfd4
diff --git a/arch/x86/entry/vdso/vdso32/vclock_gettime.c b/arch/x86/entry/vdso/vdso32/vclock_gettime.c
index 7780bbfb06ef..9242b28418d5 100644
--- a/arch/x86/entry/vdso/vdso32/vclock_gettime.c
+++ b/arch/x86/entry/vdso/vdso32/vclock_gettime.c
@@ -5,8 +5,6 @@
 #undef CONFIG_OPTIMIZE_INLINING
 #endif
 
-#undef CONFIG_X86_PPRO_FENCE
-
 #ifdef CONFIG_X86_64
 
 /*
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 577fa8adb785..317be365bce3 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -42,10 +42,8 @@
 #define CREATE_TRACE_POINTS
 #include "vsyscall_trace.h"
 
-static enum { EMULATE, NATIVE, NONE } vsyscall_mode =
-#if defined(CONFIG_LEGACY_VSYSCALL_NATIVE)
-        NATIVE;
-#elif defined(CONFIG_LEGACY_VSYSCALL_NONE)
+static enum { EMULATE, NONE } vsyscall_mode =
+#ifdef CONFIG_LEGACY_VSYSCALL_NONE
         NONE;
 #else
         EMULATE;
@@ -56,8 +54,6 @@ static int __init vsyscall_setup(char *str)
         if (str) {
                 if (!strcmp("emulate", str))
                         vsyscall_mode = EMULATE;
-                else if (!strcmp("native", str))
-                        vsyscall_mode = NATIVE;
                 else if (!strcmp("none", str))
                         vsyscall_mode = NONE;
                 else
@@ -139,10 +135,6 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
 
         WARN_ON_ONCE(address != regs->ip);
 
-        /* This should be unreachable in NATIVE mode. */
-        if (WARN_ON(vsyscall_mode == NATIVE))
-                return false;
-
         if (vsyscall_mode == NONE) {
                 warn_bad_vsyscall(KERN_INFO, regs,
                                   "vsyscall attempted with vsyscall=none");
@@ -355,7 +347,7 @@ void __init set_vsyscall_pgtable_user_bits(pgd_t *root)
         set_pgd(pgd, __pgd(pgd_val(*pgd) | _PAGE_USER));
         p4d = p4d_offset(pgd, VSYSCALL_ADDR);
 #if CONFIG_PGTABLE_LEVELS >= 5
-        p4d->p4d |= _PAGE_USER;
+        set_p4d(p4d, __p4d(p4d_val(*p4d) | _PAGE_USER));
 #endif
         pud = pud_offset(p4d, VSYSCALL_ADDR);
         set_pud(pud, __pud(pud_val(*pud) | _PAGE_USER));
@@ -370,9 +362,7 @@ void __init map_vsyscall(void)
 
         if (vsyscall_mode != NONE) {
                 __set_fixmap(VSYSCALL_PAGE, physaddr_vsyscall,
-                             vsyscall_mode == NATIVE
-                             ? PAGE_KERNEL_VSYSCALL
-                             : PAGE_KERNEL_VVAR);
+                             PAGE_KERNEL_VVAR);
                 set_vsyscall_pgtable_user_bits(swapper_pg_dir);
         }
 
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 140d33288e78..88797c80b3e0 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2118,7 +2118,8 @@ static int x86_pmu_event_init(struct perf_event *event)
                         event->destroy(event);
         }
 
-        if (READ_ONCE(x86_pmu.attr_rdpmc))
+        if (READ_ONCE(x86_pmu.attr_rdpmc) &&
+            !(event->hw.flags & PERF_X86_EVENT_LARGE_PEBS))
                 event->hw.flags |= PERF_X86_EVENT_RDPMC_ALLOWED;
 
         return err;
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 731153a4681e..1e41d7508d99 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -2952,9 +2952,9 @@ static void intel_pebs_aliases_skl(struct perf_event *event)
         return intel_pebs_aliases_precdist(event);
 }
 
-static unsigned long intel_pmu_free_running_flags(struct perf_event *event)
+static unsigned long intel_pmu_large_pebs_flags(struct perf_event *event)
 {
-        unsigned long flags = x86_pmu.free_running_flags;
+        unsigned long flags = x86_pmu.large_pebs_flags;
 
         if (event->attr.use_clockid)
                 flags &= ~PERF_SAMPLE_TIME;
@@ -2976,8 +2976,8 @@ static int intel_pmu_hw_config(struct perf_event *event)
                 if (!event->attr.freq) {
                         event->hw.flags |= PERF_X86_EVENT_AUTO_RELOAD;
                         if (!(event->attr.sample_type &
-                              ~intel_pmu_free_running_flags(event)))
-                                event->hw.flags |= PERF_X86_EVENT_FREERUNNING;
+                              ~intel_pmu_large_pebs_flags(event)))
+                                event->hw.flags |= PERF_X86_EVENT_LARGE_PEBS;
                 }
                 if (x86_pmu.pebs_aliases)
                         x86_pmu.pebs_aliases(event);
@@ -3194,7 +3194,7 @@ static unsigned bdw_limit_period(struct perf_event *event, unsigned left)
                         X86_CONFIG(.event=0xc0, .umask=0x01)) {
                 if (left < 128)
                         left = 128;
-                left &= ~0x3fu;
+                left &= ~0x3fULL;
         }
         return left;
 }
@@ -3460,7 +3460,7 @@ static __initconst const struct x86_pmu core_pmu = {
         .event_map              = intel_pmu_event_map,
         .max_events             = ARRAY_SIZE(intel_perfmon_event_map),
         .apic                   = 1,
-        .free_running_flags     = PEBS_FREERUNNING_FLAGS,
+        .large_pebs_flags       = LARGE_PEBS_FLAGS,
 
         /*
          * Intel PMCs cannot be accessed sanely above 32-bit width,
@@ -3502,7 +3502,7 @@ static __initconst const struct x86_pmu intel_pmu = {
         .event_map              = intel_pmu_event_map,
         .max_events             = ARRAY_SIZE(intel_perfmon_event_map),
         .apic                   = 1,
-        .free_running_flags     = PEBS_FREERUNNING_FLAGS,
+        .large_pebs_flags       = LARGE_PEBS_FLAGS,
         /*
          * Intel PMCs cannot be accessed sanely above 32 bit width,
          * so we install an artificial 1<<31 period regardless of
@@ -3559,7 +3559,7 @@ static int intel_snb_pebs_broken(int cpu)
                 break;
 
         case INTEL_FAM6_SANDYBRIDGE_X:
-                switch (cpu_data(cpu).x86_mask) {
+                switch (cpu_data(cpu).x86_stepping) {
                 case 6: rev = 0x618; break;
                 case 7: rev = 0x70c; break;
                 }
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index 18c25ab28557..d8015235ba76 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -935,7 +935,7 @@ void intel_pmu_pebs_add(struct perf_event *event)
         bool needed_cb = pebs_needs_sched_cb(cpuc);
 
         cpuc->n_pebs++;
-        if (hwc->flags & PERF_X86_EVENT_FREERUNNING)
+        if (hwc->flags & PERF_X86_EVENT_LARGE_PEBS)
                 cpuc->n_large_pebs++;
 
         pebs_update_state(needed_cb, cpuc, event->ctx->pmu);
@@ -975,7 +975,7 @@ void intel_pmu_pebs_del(struct perf_event *event)
         bool needed_cb = pebs_needs_sched_cb(cpuc);
 
         cpuc->n_pebs--;
-        if (hwc->flags & PERF_X86_EVENT_FREERUNNING)
+        if (hwc->flags & PERF_X86_EVENT_LARGE_PEBS)
                 cpuc->n_large_pebs--;
 
         pebs_update_state(needed_cb, cpuc, event->ctx->pmu);
@@ -1530,7 +1530,7 @@ void __init intel_ds_init(void)
                         x86_pmu.pebs_record_size =
                                                 sizeof(struct pebs_record_skl);
                         x86_pmu.drain_pebs = intel_pmu_drain_pebs_nhm;
-                        x86_pmu.free_running_flags |= PERF_SAMPLE_TIME;
+                        x86_pmu.large_pebs_flags |= PERF_SAMPLE_TIME;
                         break;
 
                 default:
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index ae64d0b69729..cf372b90557e 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -1186,7 +1186,7 @@ void __init intel_pmu_lbr_init_atom(void)
          * on PMU interrupt
          */
         if (boot_cpu_data.x86_model == 28
-            && boot_cpu_data.x86_mask < 10) {
+            && boot_cpu_data.x86_stepping < 10) {
                 pr_cont("LBR disabled due to erratum");
                 return;
         }
diff --git a/arch/x86/events/intel/p6.c b/arch/x86/events/intel/p6.c
index a5604c352930..408879b0c0d4 100644
--- a/arch/x86/events/intel/p6.c
+++ b/arch/x86/events/intel/p6.c
@@ -234,7 +234,7 @@ static __initconst const struct x86_pmu p6_pmu = {
 
 static __init void p6_pmu_rdpmc_quirk(void)
 {
-        if (boot_cpu_data.x86_mask < 9) {
+        if (boot_cpu_data.x86_stepping < 9) {
                 /*
                  * PPro erratum 26; fixed in stepping 9 and above.
                  */
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 6d8044ab1060..c98b943e58b4 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -3343,6 +3343,7 @@ static struct extra_reg skx_uncore_cha_extra_regs[] = {
         SNBEP_CBO_EVENT_EXTRA_REG(0x9134, 0xffff, 0x4),
         SNBEP_CBO_EVENT_EXTRA_REG(0x35, 0xff, 0x8),
         SNBEP_CBO_EVENT_EXTRA_REG(0x36, 0xff, 0x8),
+        SNBEP_CBO_EVENT_EXTRA_REG(0x38, 0xff, 0x3),
         EVENT_EXTRA_END
 };
 
@@ -3562,24 +3563,27 @@ static struct intel_uncore_type *skx_msr_uncores[] = {
         NULL,
 };
 
+/*
+ * To determine the number of CHAs, it should read bits 27:0 in the CAPID6
+ * register which located at Device 30, Function 3, Offset 0x9C. PCI ID 0x2083.
+ */
+#define SKX_CAPID6              0x9c
+#define SKX_CHA_BIT_MASK        GENMASK(27, 0)
+
 static int skx_count_chabox(void)
 {
-        struct pci_dev *chabox_dev = NULL;
-        int bus, count = 0;
+        struct pci_dev *dev = NULL;
+        u32 val = 0;
 
-        while (1) {
-                chabox_dev = pci_get_device(PCI_VENDOR_ID_INTEL, 0x208d, chabox_dev);
-                if (!chabox_dev)
-                        break;
-                if (count == 0)
-                        bus = chabox_dev->bus->number;
-                if (bus != chabox_dev->bus->number)
-                        break;
-                count++;
-        }
+        dev = pci_get_device(PCI_VENDOR_ID_INTEL, 0x2083, dev);
+        if (!dev)
+                goto out;
 
-        pci_dev_put(chabox_dev);
-        return count;
+        pci_read_config_dword(dev, SKX_CAPID6, &val);
+        val &= SKX_CHA_BIT_MASK;
+out:
+        pci_dev_put(dev);
+        return hweight32(val);
 }
 
 void skx_uncore_cpu_init(void)
@@ -3606,7 +3610,7 @@ static struct intel_uncore_type skx_uncore_imc = {
 };
 
 static struct attribute *skx_upi_uncore_formats_attr[] = {
-        &format_attr_event_ext.attr,
+        &format_attr_event.attr,
         &format_attr_umask_ext.attr,
         &format_attr_edge.attr,
         &format_attr_inv.attr,
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index 78f91ec1056e..39cd0615f04f 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -69,7 +69,7 @@ struct event_constraint {
 #define PERF_X86_EVENT_RDPMC_ALLOWED    0x0100 /* grant rdpmc permission */
 #define PERF_X86_EVENT_EXCL_ACCT        0x0200 /* accounted EXCL event */
 #define PERF_X86_EVENT_AUTO_RELOAD      0x0400 /* use PEBS auto-reload */
-#define PERF_X86_EVENT_FREERUNNING      0x0800 /* use freerunning PEBS */
+#define PERF_X86_EVENT_LARGE_PEBS       0x0800 /* use large PEBS */
 
 
 struct amd_nb {
@@ -88,7 +88,7 @@ struct amd_nb {
  * REGS_USER can be handled for events limited to ring 3.
  *
  */
-#define PEBS_FREERUNNING_FLAGS \
+#define LARGE_PEBS_FLAGS \
         (PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_ADDR | \
         PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_STREAM_ID | \
         PERF_SAMPLE_DATA_SRC | PERF_SAMPLE_IDENTIFIER | \
@@ -608,7 +608,7 @@ struct x86_pmu {
         struct event_constraint *pebs_constraints;
         void            (*pebs_aliases)(struct perf_event *event);
         int             max_pebs_events;
-        unsigned long   free_running_flags;
+        unsigned long   large_pebs_flags;
 
         /*
          * Intel LBR
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 96cd33bbfc85..6512498bbef6 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -51,15 +51,14 @@
 #define AA(__x)         ((unsigned long)(__x))
 
 
-asmlinkage long sys32_truncate64(const char __user *filename,
-                                 unsigned long offset_low,
-                                 unsigned long offset_high)
+COMPAT_SYSCALL_DEFINE3(x86_truncate64, const char __user *, filename,
+                       unsigned long, offset_low, unsigned long, offset_high)
 {
        return sys_truncate(filename, ((loff_t) offset_high << 32) | offset_low);
 }
 
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
-                                  unsigned long offset_high)
+COMPAT_SYSCALL_DEFINE3(x86_ftruncate64, unsigned int, fd,
+                       unsigned long, offset_low, unsigned long, offset_high)
 {
        return sys_ftruncate(fd, ((loff_t) offset_high << 32) | offset_low);
 }
@@ -96,8 +95,8 @@ static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
         return 0;
 }
 
-asmlinkage long sys32_stat64(const char __user *filename,
-                             struct stat64 __user *statbuf)
+COMPAT_SYSCALL_DEFINE2(x86_stat64, const char __user *, filename,
+                       struct stat64 __user *, statbuf)
 {
         struct kstat stat;
         int ret = vfs_stat(filename, &stat);
@@ -107,8 +106,8 @@ asmlinkage long sys32_stat64(const char __user *filename,
         return ret;
 }
 
-asmlinkage long sys32_lstat64(const char __user *filename,
-                              struct stat64 __user *statbuf)
+COMPAT_SYSCALL_DEFINE2(x86_lstat64, const char __user *, filename,
+                       struct stat64 __user *, statbuf)
 {
         struct kstat stat;
         int ret = vfs_lstat(filename, &stat);
@@ -117,7 +116,8 @@ asmlinkage long sys32_lstat64(const char __user *filename,
         return ret;
 }
 
-asmlinkage long sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
+COMPAT_SYSCALL_DEFINE2(x86_fstat64, unsigned int, fd,
+                       struct stat64 __user *, statbuf)
 {
         struct kstat stat;
         int ret = vfs_fstat(fd, &stat);
@@ -126,8 +126,9 @@ asmlinkage long sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
         return ret;
 }
 
-asmlinkage long sys32_fstatat(unsigned int dfd, const char __user *filename,
-                              struct stat64 __user *statbuf, int flag)
+COMPAT_SYSCALL_DEFINE4(x86_fstatat, unsigned int, dfd,
+                       const char __user *, filename,
+                       struct stat64 __user *, statbuf, int, flag)
 {
         struct kstat stat;
         int error;
@@ -153,7 +154,7 @@ struct mmap_arg_struct32 {
         unsigned int offset;
 };
 
-asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *arg)
+COMPAT_SYSCALL_DEFINE1(x86_mmap, struct mmap_arg_struct32 __user *, arg)
 {
         struct mmap_arg_struct32 a;
 
@@ -167,22 +168,22 @@ asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *arg)
                                a.offset>>PAGE_SHIFT);
 }
 
-asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int __user *stat_addr,
-                              int options)
+COMPAT_SYSCALL_DEFINE3(x86_waitpid, compat_pid_t, pid, unsigned int __user *,
+                       stat_addr, int, options)
 {
         return compat_sys_wait4(pid, stat_addr, options, NULL);
 }
 
 /* warning: next two assume little endian */
-asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,
-                            u32 poslo, u32 poshi)
+COMPAT_SYSCALL_DEFINE5(x86_pread, unsigned int, fd, char __user *, ubuf,
+                       u32, count, u32, poslo, u32, poshi)
 {
         return sys_pread64(fd, ubuf, count,
                          ((loff_t)AA(poshi) << 32) | AA(poslo));
 }
 
-asmlinkage long sys32_pwrite(unsigned int fd, const char __user *ubuf,
-                             u32 count, u32 poslo, u32 poshi)
+COMPAT_SYSCALL_DEFINE5(x86_pwrite, unsigned int, fd, const char __user *, ubuf,
+                       u32, count, u32, poslo, u32, poshi)
 {
         return sys_pwrite64(fd, ubuf, count,
                           ((loff_t)AA(poshi) << 32) | AA(poslo));
@@ -193,8 +194,9 @@ asmlinkage long sys32_pwrite(unsigned int fd, const char __user *ubuf,
  * Some system calls that need sign extended arguments. This could be
  * done by a generic wrapper.
  */
-long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high,
-                        __u32 len_low, __u32 len_high, int advice)
+COMPAT_SYSCALL_DEFINE6(x86_fadvise64_64, int, fd, __u32, offset_low,
+                       __u32, offset_high, __u32, len_low, __u32, len_high,
+                       int, advice)
 {
         return sys_fadvise64_64(fd,
                                (((u64)offset_high)<<32) | offset_low,
@@ -202,31 +204,43 @@ long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high,
                                 advice);
 }
 
-asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi,
-                                   size_t count)
+COMPAT_SYSCALL_DEFINE4(x86_readahead, int, fd, unsigned int, off_lo,
+                       unsigned int, off_hi, size_t, count)
 {
         return sys_readahead(fd, ((u64)off_hi << 32) | off_lo, count);
 }
 
-asmlinkage long sys32_sync_file_range(int fd, unsigned off_low, unsigned off_hi,
-                                      unsigned n_low, unsigned n_hi,  int flags)
+COMPAT_SYSCALL_DEFINE6(x86_sync_file_range, int, fd, unsigned int, off_low,
+                       unsigned int, off_hi, unsigned int, n_low,
+                       unsigned int, n_hi, int, flags)
 {
         return sys_sync_file_range(fd,
                                    ((u64)off_hi << 32) | off_low,
                                    ((u64)n_hi << 32) | n_low, flags);
 }
 
-asmlinkage long sys32_fadvise64(int fd, unsigned offset_lo, unsigned offset_hi,
-                                size_t len, int advice)
+COMPAT_SYSCALL_DEFINE5(x86_fadvise64, int, fd, unsigned int, offset_lo,
+                       unsigned int, offset_hi, size_t, len, int, advice)
 {
         return sys_fadvise64_64(fd, ((u64)offset_hi << 32) | offset_lo,
                                 len, advice);
 }
 
-asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_lo,
-                                unsigned offset_hi, unsigned len_lo,
-                                unsigned len_hi)
+COMPAT_SYSCALL_DEFINE6(x86_fallocate, int, fd, int, mode,
+                       unsigned int, offset_lo, unsigned int, offset_hi,
+                       unsigned int, len_lo, unsigned int, len_hi)
 {
         return sys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo,
                              ((u64)len_hi << 32) | len_lo);
 }
+
+/*
+ * The 32-bit clone ABI is CONFIG_CLONE_BACKWARDS
+ */
+COMPAT_SYSCALL_DEFINE5(x86_clone, unsigned long, clone_flags,
+                       unsigned long, newsp, int __user *, parent_tidptr,
+                       unsigned long, tls_val, int __user *, child_tidptr)
+{
+        return sys_clone(clone_flags, newsp, parent_tidptr, child_tidptr,
+                        tls_val);
+}
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 44f5d79d5105..11881726ed37 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -94,7 +94,7 @@ static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate)
         if (boot_cpu_data.x86 == 0x0F &&
             boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
             boot_cpu_data.x86_model <= 0x05 &&
-            boot_cpu_data.x86_mask < 0x0A)
+            boot_cpu_data.x86_stepping < 0x0A)
                 return 1;
         else if (boot_cpu_has(X86_BUG_AMD_APIC_C1E))
                 return 1;
diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
index 4d4015ddcf26..c356098b6fb9 100644
--- a/arch/x86/include/asm/apm.h
+++ b/arch/x86/include/asm/apm.h
@@ -7,6 +7,8 @@
 #ifndef _ASM_X86_MACH_DEFAULT_APM_H
 #define _ASM_X86_MACH_DEFAULT_APM_H
 
+#include <asm/nospec-branch.h>
+
 #ifdef APM_ZERO_SEGS
 #       define APM_DO_ZERO_SEGS \
                 "pushl %%ds\n\t" \
@@ -32,6 +34,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
          * N.B. We do NOT need a cld after the BIOS call
          * because we always save and restore the flags.
          */
+        firmware_restrict_branch_speculation_start();
         __asm__ __volatile__(APM_DO_ZERO_SEGS
                 "pushl %%edi\n\t"
                 "pushl %%ebp\n\t"
@@ -44,6 +47,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
                   "=S" (*esi)
                 : "a" (func), "b" (ebx_in), "c" (ecx_in)
                 : "memory", "cc");
+        firmware_restrict_branch_speculation_end();
 }
 
 static inline bool apm_bios_call_simple_asm(u32 func, u32 ebx_in,
@@ -56,6 +60,7 @@ static inline bool apm_bios_call_simple_asm(u32 func, u32 ebx_in,
          * N.B. We do NOT need a cld after the BIOS call
          * because we always save and restore the flags.
          */
+        firmware_restrict_branch_speculation_start();
         __asm__ __volatile__(APM_DO_ZERO_SEGS
                 "pushl %%edi\n\t"
                 "pushl %%ebp\n\t"
@@ -68,6 +73,7 @@ static inline bool apm_bios_call_simple_asm(u32 func, u32 ebx_in,
                   "=S" (si)
                 : "a" (func), "b" (ebx_in), "c" (ecx_in)
                 : "memory", "cc");
+        firmware_restrict_branch_speculation_end();
         return error;
 }
 
diff --git a/arch/x86/include/asm/asm-prototypes.h b/arch/x86/include/asm/asm-prototypes.h
index 4d111616524b..1908214b9125 100644
--- a/arch/x86/include/asm/asm-prototypes.h
+++ b/arch/x86/include/asm/asm-prototypes.h
@@ -38,7 +38,4 @@ INDIRECT_THUNK(dx)
 INDIRECT_THUNK(si)
 INDIRECT_THUNK(di)
 INDIRECT_THUNK(bp)
-asmlinkage void __fill_rsb(void);
-asmlinkage void __clear_rsb(void);
-
 #endif /* CONFIG_RETPOLINE */
diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
index 30d406146016..042b5e892ed1 100644
--- a/arch/x86/include/asm/barrier.h
+++ b/arch/x86/include/asm/barrier.h
@@ -40,7 +40,7 @@ static inline unsigned long array_index_mask_nospec(unsigned long index,
 
         asm ("cmp %1,%2; sbb %0,%0;"
                         :"=r" (mask)
-                        :"r"(size),"r" (index)
+                        :"g"(size),"r" (index)
                         :"cc");
         return mask;
 }
@@ -52,11 +52,7 @@ static inline unsigned long array_index_mask_nospec(unsigned long index,
 #define barrier_nospec() alternative_2("", "mfence", X86_FEATURE_MFENCE_RDTSC, \
                                            "lfence", X86_FEATURE_LFENCE_RDTSC)
 
-#ifdef CONFIG_X86_PPRO_FENCE
-#define dma_rmb()       rmb()
-#else
 #define dma_rmb()       barrier()
-#endif
 #define dma_wmb()       barrier()
 
 #ifdef CONFIG_X86_32
@@ -68,30 +64,6 @@ static inline unsigned long array_index_mask_nospec(unsigned long index,
 #define __smp_wmb()     barrier()
 #define __smp_store_mb(var, value) do { (void)xchg(&var, value); } while (0)
 
-#if defined(CONFIG_X86_PPRO_FENCE)
-
-/*
- * For this option x86 doesn't have a strong TSO memory
- * model and we should fall back to full barriers.
- */
-
-#define __smp_store_release(p, v)                                       \
-do {                                                                    \
-        compiletime_assert_atomic_type(*p);                             \
-        __smp_mb();                                                     \
-        WRITE_ONCE(*p, v);                                              \
-} while (0)
-
-#define __smp_load_acquire(p)                                           \
-({                                                                      \
-        typeof(*p) ___p1 = READ_ONCE(*p);                               \
-        compiletime_assert_atomic_type(*p);                             \
-        __smp_mb();                                                     \
-        ___p1;                                                          \
-})
-
-#else /* regular x86 TSO memory ordering */
-
 #define __smp_store_release(p, v)                                       \
 do {                                                                    \
         compiletime_assert_atomic_type(*p);                             \
@@ -107,8 +79,6 @@ do {									\
         ___p1;                                                          \
 })
 
-#endif
-
 /* Atomic operations are already serializing on x86 */
 #define __smp_mb__before_atomic()       barrier()
 #define __smp_mb__after_atomic()        barrier()
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 3fa039855b8f..9f645ba57dbb 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -78,7 +78,7 @@ set_bit(long nr, volatile unsigned long *addr)
                         : "iq" ((u8)CONST_MASK(nr))
                         : "memory");
         } else {
-                asm volatile(LOCK_PREFIX "bts %1,%0"
+                asm volatile(LOCK_PREFIX __ASM_SIZE(bts) " %1,%0"
                         : BITOP_ADDR(addr) : "Ir" (nr) : "memory");
         }
 }
@@ -94,7 +94,7 @@ set_bit(long nr, volatile unsigned long *addr)
  */
 static __always_inline void __set_bit(long nr, volatile unsigned long *addr)
 {
-        asm volatile("bts %1,%0" : ADDR : "Ir" (nr) : "memory");
+        asm volatile(__ASM_SIZE(bts) " %1,%0" : ADDR : "Ir" (nr) : "memory");
 }
 
 /**
@@ -115,7 +115,7 @@ clear_bit(long nr, volatile unsigned long *addr)
                         : CONST_MASK_ADDR(nr, addr)
                         : "iq" ((u8)~CONST_MASK(nr)));
         } else {
-                asm volatile(LOCK_PREFIX "btr %1,%0"
+                asm volatile(LOCK_PREFIX __ASM_SIZE(btr) " %1,%0"
                         : BITOP_ADDR(addr)
                         : "Ir" (nr));
         }
@@ -137,7 +137,7 @@ static __always_inline void clear_bit_unlock(long nr, volatile unsigned long *ad
 
 static __always_inline void __clear_bit(long nr, volatile unsigned long *addr)
 {
-        asm volatile("btr %1,%0" : ADDR : "Ir" (nr));
+        asm volatile(__ASM_SIZE(btr) " %1,%0" : ADDR : "Ir" (nr));
 }
 
 static __always_inline bool clear_bit_unlock_is_negative_byte(long nr, volatile unsigned long *addr)
@@ -182,7 +182,7 @@ static __always_inline void __clear_bit_unlock(long nr, volatile unsigned long *
  */
 static __always_inline void __change_bit(long nr, volatile unsigned long *addr)
 {
-        asm volatile("btc %1,%0" : ADDR : "Ir" (nr));
+        asm volatile(__ASM_SIZE(btc) " %1,%0" : ADDR : "Ir" (nr));
 }
 
 /**
@@ -201,7 +201,7 @@ static __always_inline void change_bit(long nr, volatile unsigned long *addr)
                         : CONST_MASK_ADDR(nr, addr)
                         : "iq" ((u8)CONST_MASK(nr)));
         } else {
-                asm volatile(LOCK_PREFIX "btc %1,%0"
+                asm volatile(LOCK_PREFIX __ASM_SIZE(btc) " %1,%0"
                         : BITOP_ADDR(addr)
                         : "Ir" (nr));
         }
@@ -217,7 +217,8 @@ static __always_inline void change_bit(long nr, volatile unsigned long *addr)
  */
 static __always_inline bool test_and_set_bit(long nr, volatile unsigned long *addr)
 {
-        GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", c);
+        GEN_BINARY_RMWcc(LOCK_PREFIX __ASM_SIZE(bts),
+                         *addr, "Ir", nr, "%0", c);
 }
 
 /**
@@ -246,7 +247,7 @@ static __always_inline bool __test_and_set_bit(long nr, volatile unsigned long *
 {
         bool oldbit;
 
-        asm("bts %2,%1"
+        asm(__ASM_SIZE(bts) " %2,%1"
             CC_SET(c)
             : CC_OUT(c) (oldbit), ADDR
             : "Ir" (nr));
@@ -263,7 +264,8 @@ static __always_inline bool __test_and_set_bit(long nr, volatile unsigned long *
  */
 static __always_inline bool test_and_clear_bit(long nr, volatile unsigned long *addr)
 {
-        GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", c);
+        GEN_BINARY_RMWcc(LOCK_PREFIX __ASM_SIZE(btr),
+                         *addr, "Ir", nr, "%0", c);
 }
 
 /**
@@ -286,7 +288,7 @@ static __always_inline bool __test_and_clear_bit(long nr, volatile unsigned long
 {
         bool oldbit;
 
-        asm volatile("btr %2,%1"
+        asm volatile(__ASM_SIZE(btr) " %2,%1"
                      CC_SET(c)
                      : CC_OUT(c) (oldbit), ADDR
                      : "Ir" (nr));
@@ -298,7 +300,7 @@ static __always_inline bool __test_and_change_bit(long nr, volatile unsigned lon
 {
         bool oldbit;
 
-        asm volatile("btc %2,%1"
+        asm volatile(__ASM_SIZE(btc) " %2,%1"
                      CC_SET(c)
                      : CC_OUT(c) (oldbit), ADDR
                      : "Ir" (nr) : "memory");
@@ -316,7 +318,8 @@ static __always_inline bool __test_and_change_bit(long nr, volatile unsigned lon
  */
 static __always_inline bool test_and_change_bit(long nr, volatile unsigned long *addr)
 {
-        GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", c);
+        GEN_BINARY_RMWcc(LOCK_PREFIX __ASM_SIZE(btc),
+                         *addr, "Ir", nr, "%0", c);
 }
 
 static __always_inline bool constant_test_bit(long nr, const volatile unsigned long *addr)
@@ -329,7 +332,7 @@ static __always_inline bool variable_test_bit(long nr, volatile const unsigned l
 {
         bool oldbit;
 
-        asm volatile("bt %2,%1"
+        asm volatile(__ASM_SIZE(bt) " %2,%1"
                      CC_SET(c)
                      : CC_OUT(c) (oldbit)
                      : "m" (*(unsigned long *)addr), "Ir" (nr));
diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h
index 34d99af43994..6804d6642767 100644
--- a/arch/x86/include/asm/bug.h
+++ b/arch/x86/include/asm/bug.h
@@ -5,23 +5,20 @@
 #include <linux/stringify.h>
 
 /*
- * Since some emulators terminate on UD2, we cannot use it for WARN.
- * Since various instruction decoders disagree on the length of UD1,
- * we cannot use it either. So use UD0 for WARN.
+ * Despite that some emulators terminate on UD2, we use it for WARN().
  *
- * (binutils knows about "ud1" but {en,de}codes it as 2 bytes, whereas
- *  our kernel decoder thinks it takes a ModRM byte, which seems consistent
- *  with various things like the Intel SDM instruction encoding rules)
+ * Since various instruction decoders/specs disagree on the encoding of
+ * UD0/UD1.
  */
 
-#define ASM_UD0         ".byte 0x0f, 0xff"
+#define ASM_UD0         ".byte 0x0f, 0xff" /* + ModRM (for Intel) */
 #define ASM_UD1         ".byte 0x0f, 0xb9" /* + ModRM */
 #define ASM_UD2         ".byte 0x0f, 0x0b"
 
 #define INSN_UD0        0xff0f
 #define INSN_UD2        0x0b0f
 
-#define LEN_UD0         2
+#define LEN_UD2         2
 
 #ifdef CONFIG_GENERIC_BUG
 
@@ -77,7 +74,11 @@ do {								\
         unreachable();                                          \
 } while (0)
 
-#define __WARN_FLAGS(flags)     _BUG_FLAGS(ASM_UD0, BUGFLAG_WARNING|(flags))
+#define __WARN_FLAGS(flags)                                     \
+do {                                                            \
+        _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));           \
+        annotate_reachable();                                   \
+} while (0)
 
 #include <asm-generic/bug.h>
 
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 70eddb3922ff..736771c9822e 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -148,45 +148,46 @@ extern void clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int bit);
  */
 static __always_inline __pure bool _static_cpu_has(u16 bit)
 {
-                asm_volatile_goto("1: jmp 6f\n"
-                         "2:\n"
-                         ".skip -(((5f-4f) - (2b-1b)) > 0) * "
-                                 "((5f-4f) - (2b-1b)),0x90\n"
-                         "3:\n"
-                         ".section .altinstructions,\"a\"\n"
-                         " .long 1b - .\n"              /* src offset */
-                         " .long 4f - .\n"              /* repl offset */
-                         " .word %P1\n"                 /* always replace */
-                         " .byte 3b - 1b\n"             /* src len */
-                         " .byte 5f - 4f\n"             /* repl len */
-                         " .byte 3b - 2b\n"             /* pad len */
-                         ".previous\n"
-                         ".section .altinstr_replacement,\"ax\"\n"
-                         "4: jmp %l[t_no]\n"
-                         "5:\n"
-                         ".previous\n"
-                         ".section .altinstructions,\"a\"\n"
-                         " .long 1b - .\n"              /* src offset */
-                         " .long 0\n"                   /* no replacement */
-                         " .word %P0\n"                 /* feature bit */
-                         " .byte 3b - 1b\n"             /* src len */
-                         " .byte 0\n"                   /* repl len */
-                         " .byte 0\n"                   /* pad len */
-                         ".previous\n"
-                         ".section .altinstr_aux,\"ax\"\n"
-                         "6:\n"
-                         " testb %[bitnum],%[cap_byte]\n"
-                         " jnz %l[t_yes]\n"
-                         " jmp %l[t_no]\n"
-                         ".previous\n"
-                         : : "i" (bit), "i" (X86_FEATURE_ALWAYS),
-                             [bitnum] "i" (1 << (bit & 7)),
-                             [cap_byte] "m" (((const char *)boot_cpu_data.x86_capability)[bit >> 3])
-                         : : t_yes, t_no);
-        t_yes:
-                return true;
-        t_no:
-                return false;
+        asm_volatile_goto("1: jmp 6f\n"
+                 "2:\n"
+                 ".skip -(((5f-4f) - (2b-1b)) > 0) * "
+                         "((5f-4f) - (2b-1b)),0x90\n"
+                 "3:\n"
+                 ".section .altinstructions,\"a\"\n"
+                 " .long 1b - .\n"              /* src offset */
+                 " .long 4f - .\n"              /* repl offset */
+                 " .word %P[always]\n"          /* always replace */
+                 " .byte 3b - 1b\n"             /* src len */
+                 " .byte 5f - 4f\n"             /* repl len */
+                 " .byte 3b - 2b\n"             /* pad len */
+                 ".previous\n"
+                 ".section .altinstr_replacement,\"ax\"\n"
+                 "4: jmp %l[t_no]\n"
+                 "5:\n"
+                 ".previous\n"
+                 ".section .altinstructions,\"a\"\n"
+                 " .long 1b - .\n"              /* src offset */
+                 " .long 0\n"                   /* no replacement */
+                 " .word %P[feature]\n"         /* feature bit */
+                 " .byte 3b - 1b\n"             /* src len */
+                 " .byte 0\n"                   /* repl len */
+                 " .byte 0\n"                   /* pad len */
+                 ".previous\n"
+                 ".section .altinstr_aux,\"ax\"\n"
+                 "6:\n"
+                 " testb %[bitnum],%[cap_byte]\n"
+                 " jnz %l[t_yes]\n"
+                 " jmp %l[t_no]\n"
+                 ".previous\n"
+                 : : [feature]  "i" (bit),
+                     [always]   "i" (X86_FEATURE_ALWAYS),
+                     [bitnum]   "i" (1 << (bit & 7)),
+                     [cap_byte] "m" (((const char *)boot_cpu_data.x86_capability)[bit >> 3])
+                 : : t_yes, t_no);
+t_yes:
+        return true;
+t_no:
+        return false;
 }
 
 #define static_cpu_has(bit)                                     \
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 0dfe4d3f74e2..d554c11e01ff 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -213,6 +213,7 @@
 #define X86_FEATURE_SEV                 ( 7*32+20) /* AMD Secure Encrypted Virtualization */
 
 #define X86_FEATURE_USE_IBPB            ( 7*32+21) /* "" Indirect Branch Prediction Barrier enabled */
+#define X86_FEATURE_USE_IBRS_FW         ( 7*32+22) /* "" Use IBRS during runtime firmware calls */
 
 /* Virtualization flags: Linux defined, word 8 */
 #define X86_FEATURE_TPR_SHADOW          ( 8*32+ 0) /* Intel TPR Shadow */
@@ -315,6 +316,7 @@
 #define X86_FEATURE_VPCLMULQDQ          (16*32+10) /* Carry-Less Multiplication Double Quadword */
 #define X86_FEATURE_AVX512_VNNI         (16*32+11) /* Vector Neural Network Instructions */
 #define X86_FEATURE_AVX512_BITALG       (16*32+12) /* Support for VPOPCNT[B,W] and VPSHUF-BITQMB instructions */
+#define X86_FEATURE_TME                 (16*32+13) /* Intel Total Memory Encryption */
 #define X86_FEATURE_AVX512_VPOPCNTDQ    (16*32+14) /* POPCNT for vectors of DW/QW */
 #define X86_FEATURE_LA57                (16*32+16) /* 5-level page tables */
 #define X86_FEATURE_RDPID               (16*32+22) /* RDPID instruction */
@@ -327,6 +329,7 @@
 /* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
 #define X86_FEATURE_AVX512_4VNNIW       (18*32+ 2) /* AVX-512 Neural Network Instructions */
 #define X86_FEATURE_AVX512_4FMAPS       (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
+#define X86_FEATURE_PCONFIG             (18*32+18) /* Intel PCONFIG */
 #define X86_FEATURE_SPEC_CTRL           (18*32+26) /* "" Speculation Control (IBRS + IBPB) */
 #define X86_FEATURE_INTEL_STIBP         (18*32+27) /* "" Single Thread Indirect Branch Predictors */
 #define X86_FEATURE_ARCH_CAPABILITIES   (18*32+29) /* IA32_ARCH_CAPABILITIES MSR (Intel) */
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 85f6ccb80b91..a399c1ebf6f0 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -6,6 +6,7 @@
 #include <asm/pgtable.h>
 #include <asm/processor-flags.h>
 #include <asm/tlb.h>
+#include <asm/nospec-branch.h>
 
 /*
  * We map the EFI regions needed for runtime services non-contiguously,
@@ -36,8 +37,18 @@
 
 extern asmlinkage unsigned long efi_call_phys(void *, ...);
 
-#define arch_efi_call_virt_setup()      kernel_fpu_begin()
-#define arch_efi_call_virt_teardown()   kernel_fpu_end()
+#define arch_efi_call_virt_setup()                                      \
+({                                                                      \
+        kernel_fpu_begin();                                             \
+        firmware_restrict_branch_speculation_start();                   \
+})
+
+#define arch_efi_call_virt_teardown()                                   \
+({                                                                      \
+        firmware_restrict_branch_speculation_end();                     \
+        kernel_fpu_end();                                               \
+})
+
 
 /*
  * Wrap all the virtual calls in a way that forces the parameters on the stack.
@@ -73,6 +84,7 @@ struct efi_scratch {
         efi_sync_low_kernel_mappings();                                 \
         preempt_disable();                                              \
         __kernel_fpu_begin();                                           \
+        firmware_restrict_branch_speculation_start();                   \
                                                                         \
         if (efi_scratch.use_pgd) {                                      \
                 efi_scratch.prev_cr3 = __read_cr3();                    \
@@ -91,6 +103,7 @@ struct efi_scratch {
                 __flush_tlb_all();                                      \
         }                                                               \
                                                                         \
+        firmware_restrict_branch_speculation_end();                     \
         __kernel_fpu_end();                                             \
         preempt_enable();                                               \
 })
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 95e948627fd0..f6e5b9375d8c 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -232,21 +232,6 @@ extern void set_iounmap_nonlazy(void);
  */
 #define __ISA_IO_base ((char __iomem *)(PAGE_OFFSET))
 
-/*
- *      Cache management
- *
- *      This needed for two cases
- *      1. Out of order aware processors
- *      2. Accidentally out of order processors (PPro errata #51)
- */
-
-static inline void flush_write_buffers(void)
-{
-#if defined(CONFIG_X86_PPRO_FENCE)
-        asm volatile("lock; addl $0,0(%%esp)": : :"memory");
-#endif
-}
-
 #endif /* __KERNEL__ */
 
 extern void native_io_delay(void);
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index dd6f57a54a26..b605a5b6a30c 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -507,6 +507,7 @@ struct kvm_vcpu_arch {
         u64 smi_count;
         bool tpr_access_reporting;
         u64 ia32_xss;
+        u64 microcode_version;
 
         /*
          * Paging state of the vcpu
@@ -1095,6 +1096,8 @@ struct kvm_x86_ops {
         int (*mem_enc_op)(struct kvm *kvm, void __user *argp);
         int (*mem_enc_reg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
         int (*mem_enc_unreg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
+
+        int (*get_msr_feature)(struct kvm_msr_entry *entry);
 };
 
 struct kvm_arch_async_pf {
@@ -1464,7 +1467,4 @@ static inline int kvm_cpu_get_apicid(int mps_cpu)
 #define put_smstate(type, buf, offset, val)                      \
         *(type *)((buf) + (offset) - 0x7e00) = val
 
-void kvm_arch_mmu_notifier_invalidate_range(struct kvm *kvm,
-                unsigned long start, unsigned long end);
-
 #endif /* _ASM_X86_KVM_HOST_H */
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
index 55520cec8b27..6cf0e4cb7b97 100644
--- a/arch/x86/include/asm/microcode.h
+++ b/arch/x86/include/asm/microcode.h
@@ -37,7 +37,13 @@ struct cpu_signature {
 
 struct device;
 
-enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND };
+enum ucode_state {
+        UCODE_OK        = 0,
+        UCODE_NEW,
+        UCODE_UPDATED,
+        UCODE_NFOUND,
+        UCODE_ERROR,
+};
 
 struct microcode_ops {
         enum ucode_state (*request_microcode_user) (int cpu,
@@ -54,7 +60,7 @@ struct microcode_ops {
          * are being called.
          * See also the "Synchronization" section in microcode_core.c.
          */
-        int (*apply_microcode) (int cpu);
+        enum ucode_state (*apply_microcode) (int cpu);
         int (*collect_cpu_info) (int cpu, struct cpu_signature *csig);
 };
 
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index c931b88982a0..1de72ce514cd 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -74,6 +74,7 @@ static inline void *ldt_slot_va(int slot)
         return (void *)(LDT_BASE_ADDR + LDT_SLOT_STRIDE * slot);
 #else
         BUG();
+        return (void *)fix_to_virt(FIX_HOLE);
 #endif
 }
 
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index 4d57894635f2..f928ad9b143f 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -6,6 +6,51 @@
 #include <asm/alternative.h>
 #include <asm/alternative-asm.h>
 #include <asm/cpufeatures.h>
+#include <asm/msr-index.h>
+
+/*
+ * Fill the CPU return stack buffer.
+ *
+ * Each entry in the RSB, if used for a speculative 'ret', contains an
+ * infinite 'pause; lfence; jmp' loop to capture speculative execution.
+ *
+ * This is required in various cases for retpoline and IBRS-based
+ * mitigations for the Spectre variant 2 vulnerability. Sometimes to
+ * eliminate potentially bogus entries from the RSB, and sometimes
+ * purely to ensure that it doesn't get empty, which on some CPUs would
+ * allow predictions from other (unwanted!) sources to be used.
+ *
+ * We define a CPP macro such that it can be used from both .S files and
+ * inline assembly. It's possible to do a .macro and then include that
+ * from C via asm(".include <asm/nospec-branch.h>") but let's not go there.
+ */
+
+#define RSB_CLEAR_LOOPS         32      /* To forcibly overwrite all entries */
+#define RSB_FILL_LOOPS          16      /* To avoid underflow */
+
+/*
+ * Google experimented with loop-unrolling and this turned out to be
+ * the optimal version — two calls, each with their own speculation
+ * trap should their return address end up getting used, in a loop.
+ */
+#define __FILL_RETURN_BUFFER(reg, nr, sp)       \
+        mov     $(nr/2), reg;                   \
+771:                                            \
+        call    772f;                           \
+773:    /* speculation trap */                  \
+        pause;                                  \
+        lfence;                                 \
+        jmp     773b;                           \
+772:                                            \
+        call    774f;                           \
+775:    /* speculation trap */                  \
+        pause;                                  \
+        lfence;                                 \
+        jmp     775b;                           \
+774:                                            \
+        dec     reg;                            \
+        jnz     771b;                           \
+        add     $(BITS_PER_LONG/8) * nr, sp;
 
 #ifdef __ASSEMBLY__
 
@@ -23,6 +68,18 @@
 .endm
 
 /*
+ * This should be used immediately before an indirect jump/call. It tells
+ * objtool the subsequent indirect jump/call is vouched safe for retpoline
+ * builds.
+ */
+.macro ANNOTATE_RETPOLINE_SAFE
+        .Lannotate_\@:
+        .pushsection .discard.retpoline_safe
+        _ASM_PTR .Lannotate_\@
+        .popsection
+.endm
+
+/*
  * These are the bare retpoline primitives for indirect jmp and call.
  * Do not use these directly; they only exist to make the ALTERNATIVE
  * invocation below less ugly.
@@ -58,9 +115,9 @@
 .macro JMP_NOSPEC reg:req
 #ifdef CONFIG_RETPOLINE
         ANNOTATE_NOSPEC_ALTERNATIVE
-        ALTERNATIVE_2 __stringify(jmp *\reg),                           \
+        ALTERNATIVE_2 __stringify(ANNOTATE_RETPOLINE_SAFE; jmp *\reg),  \
                 __stringify(RETPOLINE_JMP \reg), X86_FEATURE_RETPOLINE, \
-                __stringify(lfence; jmp *\reg), X86_FEATURE_RETPOLINE_AMD
+                __stringify(lfence; ANNOTATE_RETPOLINE_SAFE; jmp *\reg), X86_FEATURE_RETPOLINE_AMD
 #else
         jmp     *\reg
 #endif
@@ -69,18 +126,25 @@
 .macro CALL_NOSPEC reg:req
 #ifdef CONFIG_RETPOLINE
         ANNOTATE_NOSPEC_ALTERNATIVE
-        ALTERNATIVE_2 __stringify(call *\reg),                          \
+        ALTERNATIVE_2 __stringify(ANNOTATE_RETPOLINE_SAFE; call *\reg), \
                 __stringify(RETPOLINE_CALL \reg), X86_FEATURE_RETPOLINE,\
-                __stringify(lfence; call *\reg), X86_FEATURE_RETPOLINE_AMD
+                __stringify(lfence; ANNOTATE_RETPOLINE_SAFE; call *\reg), X86_FEATURE_RETPOLINE_AMD
 #else
         call    *\reg
 #endif
 .endm
 
-/* This clobbers the BX register */
-.macro FILL_RETURN_BUFFER nr:req ftr:req
+ /*
+  * A simpler FILL_RETURN_BUFFER macro. Don't make people use the CPP
+  * monstrosity above, manually.
+  */
+.macro FILL_RETURN_BUFFER reg:req nr:req ftr:req
 #ifdef CONFIG_RETPOLINE
-        ALTERNATIVE "", "call __clear_rsb", \ftr
+        ANNOTATE_NOSPEC_ALTERNATIVE
+        ALTERNATIVE "jmp .Lskip_rsb_\@",                                \
+                __stringify(__FILL_RETURN_BUFFER(\reg,\nr,%_ASM_SP))    \
+                \ftr
+.Lskip_rsb_\@:
 #endif
 .endm
 
@@ -92,6 +156,12 @@
         ".long 999b - .\n\t"                                    \
         ".popsection\n\t"
 
+#define ANNOTATE_RETPOLINE_SAFE                                 \
+        "999:\n\t"                                              \
+        ".pushsection .discard.retpoline_safe\n\t"              \
+        _ASM_PTR " 999b\n\t"                                    \
+        ".popsection\n\t"
+
 #if defined(CONFIG_X86_64) && defined(RETPOLINE)
 
 /*
@@ -101,6 +171,7 @@
 # define CALL_NOSPEC                                            \
         ANNOTATE_NOSPEC_ALTERNATIVE                             \
         ALTERNATIVE(                                            \
+        ANNOTATE_RETPOLINE_SAFE                                 \
         "call *%[thunk_target]\n",                              \
         "call __x86_indirect_thunk_%V[thunk_target]\n",         \
         X86_FEATURE_RETPOLINE)
@@ -112,7 +183,10 @@
  * otherwise we'll run out of registers. We don't care about CET
  * here, anyway.
  */
-# define CALL_NOSPEC ALTERNATIVE("call *%[thunk_target]\n",     \
+# define CALL_NOSPEC                                            \
+        ALTERNATIVE(                                            \
+        ANNOTATE_RETPOLINE_SAFE                                 \
+        "call *%[thunk_target]\n",                              \
         "       jmp    904f;\n"                                 \
         "       .align 16\n"                                    \
         "901:   call   903f;\n"                                 \
@@ -155,20 +229,90 @@ extern char __indirect_thunk_end[];
 static inline void vmexit_fill_RSB(void)
 {
 #ifdef CONFIG_RETPOLINE
-        alternative_input("",
-                          "call __fill_rsb",
-                          X86_FEATURE_RETPOLINE,
-                          ASM_NO_INPUT_CLOBBER(_ASM_BX, "memory"));
+        unsigned long loops;
+
+        asm volatile (ANNOTATE_NOSPEC_ALTERNATIVE
+                      ALTERNATIVE("jmp 910f",
+                                  __stringify(__FILL_RETURN_BUFFER(%0, RSB_CLEAR_LOOPS, %1)),
+                                  X86_FEATURE_RETPOLINE)
+                      "910:"
+                      : "=r" (loops), ASM_CALL_CONSTRAINT
+                      : : "memory" );
 #endif
 }
 
+#define alternative_msr_write(_msr, _val, _feature)             \
+        asm volatile(ALTERNATIVE("",                            \
+                                 "movl %[msr], %%ecx\n\t"       \
+                                 "movl %[val], %%eax\n\t"       \
+                                 "movl $0, %%edx\n\t"           \
+                                 "wrmsr",                       \
+                                 _feature)                      \
+                     : : [msr] "i" (_msr), [val] "i" (_val)     \
+                     : "eax", "ecx", "edx", "memory")
+
 static inline void indirect_branch_prediction_barrier(void)
 {
-        alternative_input("",
-                          "call __ibp_barrier",
-                          X86_FEATURE_USE_IBPB,
-                          ASM_NO_INPUT_CLOBBER("eax", "ecx", "edx", "memory"));
+        alternative_msr_write(MSR_IA32_PRED_CMD, PRED_CMD_IBPB,
+                              X86_FEATURE_USE_IBPB);
 }
 
+/*
+ * With retpoline, we must use IBRS to restrict branch prediction
+ * before calling into firmware.
+ *
+ * (Implemented as CPP macros due to header hell.)
+ */
+#define firmware_restrict_branch_speculation_start()                    \
+do {                                                                    \
+        preempt_disable();                                              \
+        alternative_msr_write(MSR_IA32_SPEC_CTRL, SPEC_CTRL_IBRS,       \
+                              X86_FEATURE_USE_IBRS_FW);                 \
+} while (0)
+
+#define firmware_restrict_branch_speculation_end()                      \
+do {                                                                    \
+        alternative_msr_write(MSR_IA32_SPEC_CTRL, 0,                    \
+                              X86_FEATURE_USE_IBRS_FW);                 \
+        preempt_enable();                                               \
+} while (0)
+
 #endif /* __ASSEMBLY__ */
+
+/*
+ * Below is used in the eBPF JIT compiler and emits the byte sequence
+ * for the following assembly:
+ *
+ * With retpolines configured:
+ *
+ *    callq do_rop
+ *  spec_trap:
+ *    pause
+ *    lfence
+ *    jmp spec_trap
+ *  do_rop:
+ *    mov %rax,(%rsp)
+ *    retq
+ *
+ * Without retpolines configured:
+ *
+ *    jmp *%rax
+ */
+#ifdef CONFIG_RETPOLINE
+# define RETPOLINE_RAX_BPF_JIT_SIZE     17
+# define RETPOLINE_RAX_BPF_JIT()                                \
+        EMIT1_off32(0xE8, 7);    /* callq do_rop */             \
+        /* spec_trap: */                                        \
+        EMIT2(0xF3, 0x90);       /* pause */                    \
+        EMIT3(0x0F, 0xAE, 0xE8); /* lfence */                   \
+        EMIT2(0xEB, 0xF9);       /* jmp spec_trap */            \
+        /* do_rop: */                                           \
+        EMIT4(0x48, 0x89, 0x04, 0x24); /* mov %rax,(%rsp) */    \
+        EMIT1(0xC3);             /* retq */
+#else
+# define RETPOLINE_RAX_BPF_JIT_SIZE     2
+# define RETPOLINE_RAX_BPF_JIT()                                \
+        EMIT2(0xFF, 0xE0);       /* jmp *%rax */
+#endif
+
 #endif /* _ASM_X86_NOSPEC_BRANCH_H_ */
diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
index 4baa6bceb232..d652a3808065 100644
--- a/arch/x86/include/asm/page_64.h
+++ b/arch/x86/include/asm/page_64.h
@@ -52,10 +52,6 @@ static inline void clear_page(void *page)
 
 void copy_page(void *to, void *from);
 
-#ifdef CONFIG_X86_MCE
-#define arch_unmap_kpfn arch_unmap_kpfn
-#endif
-
 #endif  /* !__ASSEMBLY__ */
 
 #ifdef CONFIG_X86_VSYSCALL_EMULATION
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 892df375b615..c83a2f418cea 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -7,6 +7,7 @@
 #ifdef CONFIG_PARAVIRT
 #include <asm/pgtable_types.h>
 #include <asm/asm.h>
+#include <asm/nospec-branch.h>
 
 #include <asm/paravirt_types.h>
 
@@ -297,9 +298,9 @@ static inline void __flush_tlb_global(void)
 {
         PVOP_VCALL0(pv_mmu_ops.flush_tlb_kernel);
 }
-static inline void __flush_tlb_single(unsigned long addr)
+static inline void __flush_tlb_one_user(unsigned long addr)
 {
-        PVOP_VCALL1(pv_mmu_ops.flush_tlb_single, addr);
+        PVOP_VCALL1(pv_mmu_ops.flush_tlb_one_user, addr);
 }
 
 static inline void flush_tlb_others(const struct cpumask *cpumask,
@@ -879,23 +880,27 @@ extern void default_banner(void);
 
 #define INTERRUPT_RETURN                                                \
         PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_iret), CLBR_NONE,       \
-                  jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_iret))
+                  ANNOTATE_RETPOLINE_SAFE;                                      \
+                  jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_iret);)
 
 #define DISABLE_INTERRUPTS(clobbers)                                    \
         PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_disable), clobbers, \
                   PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE);            \
+                  ANNOTATE_RETPOLINE_SAFE;                                      \
                   call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_disable);    \
                   PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
 
 #define ENABLE_INTERRUPTS(clobbers)                                     \
         PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_enable), clobbers,  \
                   PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE);            \
+                  ANNOTATE_RETPOLINE_SAFE;                                      \
                   call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_enable);     \
                   PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
 
 #ifdef CONFIG_X86_32
 #define GET_CR0_INTO_EAX                                \
         push %ecx; push %edx;                           \
+        ANNOTATE_RETPOLINE_SAFE;                                \
         call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); \
         pop %edx; pop %ecx
 #else   /* !CONFIG_X86_32 */
@@ -917,21 +922,25 @@ extern void default_banner(void);
  */
 #define SWAPGS                                                          \
         PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_swapgs), CLBR_NONE,     \
-                  call PARA_INDIRECT(pv_cpu_ops+PV_CPU_swapgs)          \
+                  ANNOTATE_RETPOLINE_SAFE;                                      \
+                  call PARA_INDIRECT(pv_cpu_ops+PV_CPU_swapgs);         \
                  )
 
 #define GET_CR2_INTO_RAX                                \
-        call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr2)
+        ANNOTATE_RETPOLINE_SAFE;                                \
+        call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr2);
 
 #define USERGS_SYSRET64                                                 \
         PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usergs_sysret64),       \
                   CLBR_NONE,                                            \
-                  jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret64))
+                  ANNOTATE_RETPOLINE_SAFE;                                      \
+                  jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret64);)
 
 #ifdef CONFIG_DEBUG_ENTRY
 #define SAVE_FLAGS(clobbers)                                        \
         PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_save_fl), clobbers, \
                   PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE);        \
+                  ANNOTATE_RETPOLINE_SAFE;                                  \
                   call PARA_INDIRECT(pv_irq_ops+PV_IRQ_save_fl);    \
                   PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
 #endif
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 6ec54d01972d..180bc0bff0fb 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -43,6 +43,7 @@
 #include <asm/desc_defs.h>
 #include <asm/kmap_types.h>
 #include <asm/pgtable_types.h>
+#include <asm/nospec-branch.h>
 
 struct page;
 struct thread_struct;
@@ -217,7 +218,7 @@ struct pv_mmu_ops {
         /* TLB operations */
         void (*flush_tlb_user)(void);
         void (*flush_tlb_kernel)(void);
-        void (*flush_tlb_single)(unsigned long addr);
+        void (*flush_tlb_one_user)(unsigned long addr);
         void (*flush_tlb_others)(const struct cpumask *cpus,
                                  const struct flush_tlb_info *info);
 
@@ -392,7 +393,9 @@ int paravirt_disable_iospace(void);
  * offset into the paravirt_patch_template structure, and can therefore be
  * freely converted back into a structure offset.
  */
-#define PARAVIRT_CALL   "call *%c[paravirt_opptr];"
+#define PARAVIRT_CALL                                   \
+        ANNOTATE_RETPOLINE_SAFE                         \
+        "call *%c[paravirt_opptr];"
 
 /*
  * These macros are intended to wrap calls through one of the paravirt
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index ba3c523aaf16..a06b07399d17 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -526,7 +526,7 @@ static inline bool x86_this_cpu_variable_test_bit(int nr,
 {
         bool oldbit;
 
-        asm volatile("bt "__percpu_arg(2)",%1"
+        asm volatile("btl "__percpu_arg(2)",%1"
                         CC_SET(c)
                         : CC_OUT(c) (oldbit)
                         : "m" (*(unsigned long __percpu *)addr), "Ir" (nr));
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 63c2552b6b65..b444d83cfc95 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -350,14 +350,14 @@ static inline pmd_t pmd_set_flags(pmd_t pmd, pmdval_t set)
 {
         pmdval_t v = native_pmd_val(pmd);
 
-        return __pmd(v | set);
+        return native_make_pmd(v | set);
 }
 
 static inline pmd_t pmd_clear_flags(pmd_t pmd, pmdval_t clear)
 {
         pmdval_t v = native_pmd_val(pmd);
 
-        return __pmd(v & ~clear);
+        return native_make_pmd(v & ~clear);
 }
 
 static inline pmd_t pmd_mkold(pmd_t pmd)
@@ -409,14 +409,14 @@ static inline pud_t pud_set_flags(pud_t pud, pudval_t set)
 {
         pudval_t v = native_pud_val(pud);
 
-        return __pud(v | set);
+        return native_make_pud(v | set);
 }
 
 static inline pud_t pud_clear_flags(pud_t pud, pudval_t clear)
 {
         pudval_t v = native_pud_val(pud);
 
-        return __pud(v & ~clear);
+        return native_make_pud(v & ~clear);
 }
 
 static inline pud_t pud_mkold(pud_t pud)
diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
index e67c0620aec2..b3ec519e3982 100644
--- a/arch/x86/include/asm/pgtable_32.h
+++ b/arch/x86/include/asm/pgtable_32.h
@@ -32,6 +32,7 @@ extern pmd_t initial_pg_pmd[];
 static inline void pgtable_cache_init(void) { }
 static inline void check_pgt_cache(void) { }
 void paging_init(void);
+void sync_initial_page_table(void);
 
 /*
  * Define this if things work differently on an i386 and an i486:
@@ -61,7 +62,7 @@ void paging_init(void);
 #define kpte_clear_flush(ptep, vaddr)           \
 do {                                            \
         pte_clear(&init_mm, (vaddr), (ptep));   \
-        __flush_tlb_one((vaddr));               \
+        __flush_tlb_one_kernel((vaddr));                \
 } while (0)
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 81462e9a34f6..1149d2112b2e 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -28,6 +28,7 @@ extern pgd_t init_top_pgt[];
 #define swapper_pg_dir init_top_pgt
 
 extern void paging_init(void);
+static inline void sync_initial_page_table(void) { }
 
 #define pte_ERROR(e)                                    \
         pr_err("%s:%d: bad pte %p(%016lx)\n",           \
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index 3696398a9475..acfe755562a6 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -174,7 +174,6 @@ enum page_cache_mode {
 #define __PAGE_KERNEL_RO                (__PAGE_KERNEL & ~_PAGE_RW)
 #define __PAGE_KERNEL_RX                (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
 #define __PAGE_KERNEL_NOCACHE           (__PAGE_KERNEL | _PAGE_NOCACHE)
-#define __PAGE_KERNEL_VSYSCALL          (__PAGE_KERNEL_RX | _PAGE_USER)
 #define __PAGE_KERNEL_VVAR              (__PAGE_KERNEL_RO | _PAGE_USER)
 #define __PAGE_KERNEL_LARGE             (__PAGE_KERNEL | _PAGE_PSE)
 #define __PAGE_KERNEL_LARGE_EXEC        (__PAGE_KERNEL_EXEC | _PAGE_PSE)
@@ -206,7 +205,6 @@ enum page_cache_mode {
 #define PAGE_KERNEL_NOCACHE     __pgprot(__PAGE_KERNEL_NOCACHE | _PAGE_ENC)
 #define PAGE_KERNEL_LARGE       __pgprot(__PAGE_KERNEL_LARGE | _PAGE_ENC)
 #define PAGE_KERNEL_LARGE_EXEC  __pgprot(__PAGE_KERNEL_LARGE_EXEC | _PAGE_ENC)
-#define PAGE_KERNEL_VSYSCALL    __pgprot(__PAGE_KERNEL_VSYSCALL | _PAGE_ENC)
 #define PAGE_KERNEL_VVAR        __pgprot(__PAGE_KERNEL_VVAR | _PAGE_ENC)
 
 #define PAGE_KERNEL_IO          __pgprot(__PAGE_KERNEL_IO)
@@ -323,6 +321,11 @@ static inline pudval_t native_pud_val(pud_t pud)
 #else
 #include <asm-generic/pgtable-nopud.h>
 
+static inline pud_t native_make_pud(pudval_t val)
+{
+        return (pud_t) { .p4d.pgd = native_make_pgd(val) };
+}
+
 static inline pudval_t native_pud_val(pud_t pud)
 {
         return native_pgd_val(pud.p4d.pgd);
@@ -344,6 +347,11 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
 #else
 #include <asm-generic/pgtable-nopmd.h>
 
+static inline pmd_t native_make_pmd(pmdval_t val)
+{
+        return (pmd_t) { .pud.p4d.pgd = native_make_pgd(val) };
+}
+
 static inline pmdval_t native_pmd_val(pmd_t pmd)
 {
         return native_pgd_val(pmd.pud.p4d.pgd);
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 793bae7e7ce3..b0ccd4847a58 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -91,7 +91,7 @@ struct cpuinfo_x86 {
         __u8                    x86;            /* CPU family */
         __u8                    x86_vendor;     /* CPU vendor */
         __u8                    x86_model;
-        __u8                    x86_mask;
+        __u8                    x86_stepping;
 #ifdef CONFIG_X86_64
         /* Number of 4K pages in DTLB/ITLB combined(in pages): */
         int                     x86_tlbsize;
@@ -109,7 +109,7 @@ struct cpuinfo_x86 {
         char                    x86_vendor_id[16];
         char                    x86_model_id[64];
         /* in KB - valid for CPUS which support this call: */
-        int                     x86_cache_size;
+        unsigned int            x86_cache_size;
         int                     x86_cache_alignment;    /* In bytes */
         /* Cache QoS architectural values: */
         int                     x86_cache_max_rmid;     /* max index */
@@ -977,7 +977,5 @@ bool xen_set_default_idle(void);
 
 void stop_this_cpu(void *dummy);
 void df_debug(struct pt_regs *regs, long error_code);
-
-void __ibp_barrier(void);
-
+void microcode_check(void);
 #endif /* _ASM_X86_PROCESSOR_H */
diff --git a/arch/x86/include/asm/refcount.h b/arch/x86/include/asm/refcount.h
index 4e44250e7d0d..4cf11d88d3b3 100644
--- a/arch/x86/include/asm/refcount.h
+++ b/arch/x86/include/asm/refcount.h
@@ -17,7 +17,7 @@
 #define _REFCOUNT_EXCEPTION                             \
         ".pushsection .text..refcount\n"                \
         "111:\tlea %[counter], %%" _ASM_CX "\n"         \
-        "112:\t" ASM_UD0 "\n"                           \
+        "112:\t" ASM_UD2 "\n"                           \
         ASM_UNREACHABLE                                 \
         ".popsection\n"                                 \
         "113:\n"                                        \
@@ -67,13 +67,13 @@ static __always_inline __must_check
 bool refcount_sub_and_test(unsigned int i, refcount_t *r)
 {
         GEN_BINARY_SUFFIXED_RMWcc(LOCK_PREFIX "subl", REFCOUNT_CHECK_LT_ZERO,
-                                  r->refs.counter, "er", i, "%0", e);
+                                  r->refs.counter, "er", i, "%0", e, "cx");
 }
 
 static __always_inline __must_check bool refcount_dec_and_test(refcount_t *r)
 {
         GEN_UNARY_SUFFIXED_RMWcc(LOCK_PREFIX "decl", REFCOUNT_CHECK_LT_ZERO,
-                                 r->refs.counter, "%0", e);
+                                 r->refs.counter, "%0", e, "cx");
 }
 
 static __always_inline __must_check
diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
index f91c365e57c3..4914a3e7c803 100644
--- a/arch/x86/include/asm/rmwcc.h
+++ b/arch/x86/include/asm/rmwcc.h
@@ -2,8 +2,7 @@
 #ifndef _ASM_X86_RMWcc
 #define _ASM_X86_RMWcc
 
-#define __CLOBBERS_MEM          "memory"
-#define __CLOBBERS_MEM_CC_CX    "memory", "cc", "cx"
+#define __CLOBBERS_MEM(clb...)  "memory", ## clb
 
 #if !defined(__GCC_ASM_FLAG_OUTPUTS__) && defined(CC_HAVE_ASM_GOTO)
 
@@ -40,18 +39,19 @@ do {									\
 #endif /* defined(__GCC_ASM_FLAG_OUTPUTS__) || !defined(CC_HAVE_ASM_GOTO) */
 
 #define GEN_UNARY_RMWcc(op, var, arg0, cc)                              \
-        __GEN_RMWcc(op " " arg0, var, cc, __CLOBBERS_MEM)
+        __GEN_RMWcc(op " " arg0, var, cc, __CLOBBERS_MEM())
 
-#define GEN_UNARY_SUFFIXED_RMWcc(op, suffix, var, arg0, cc)             \
+#define GEN_UNARY_SUFFIXED_RMWcc(op, suffix, var, arg0, cc, clobbers...)\
         __GEN_RMWcc(op " " arg0 "\n\t" suffix, var, cc,                 \
-                    __CLOBBERS_MEM_CC_CX)
+                    __CLOBBERS_MEM(clobbers))
 
 #define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)                  \
         __GEN_RMWcc(op __BINARY_RMWcc_ARG arg0, var, cc,                \
-                    __CLOBBERS_MEM, vcon (val))
+                    __CLOBBERS_MEM(), vcon (val))
 
-#define GEN_BINARY_SUFFIXED_RMWcc(op, suffix, var, vcon, val, arg0, cc) \
+#define GEN_BINARY_SUFFIXED_RMWcc(op, suffix, var, vcon, val, arg0, cc, \
+                                  clobbers...)                          \
         __GEN_RMWcc(op __BINARY_RMWcc_ARG arg0 "\n\t" suffix, var, cc,  \
-                    __CLOBBERS_MEM_CC_CX, vcon (val))
+                    __CLOBBERS_MEM(clobbers), vcon (val))
 
 #endif /* _ASM_X86_RMWcc */
diff --git a/arch/x86/include/asm/sections.h b/arch/x86/include/asm/sections.h
index d6baf23782bc..5c019d23d06b 100644
--- a/arch/x86/include/asm/sections.h
+++ b/arch/x86/include/asm/sections.h
@@ -10,6 +10,7 @@ extern struct exception_table_entry __stop___ex_table[];
 
 #if defined(CONFIG_X86_64)
 extern char __end_rodata_hpage_align[];
+extern char __entry_trampoline_start[], __entry_trampoline_end[];
 #endif
 
 #endif  /* _ASM_X86_SECTIONS_H */
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 461f53d27708..a4189762b266 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -129,6 +129,7 @@ static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 void cpu_disable_common(void);
 void native_smp_prepare_boot_cpu(void);
 void native_smp_prepare_cpus(unsigned int max_cpus);
+void calculate_max_logical_packages(void);
 void native_smp_cpus_done(unsigned int max_cpus);
 void common_cpu_up(unsigned int cpunum, struct task_struct *tidle);
 int native_cpu_up(unsigned int cpunum, struct task_struct *tidle);
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index 82c34ee25a65..906794aa034e 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -20,31 +20,43 @@
 #include <asm/ia32.h>
 
 /* ia32/sys_ia32.c */
-asmlinkage long sys32_truncate64(const char __user *, unsigned long, unsigned long);
-asmlinkage long sys32_ftruncate64(unsigned int, unsigned long, unsigned long);
+asmlinkage long compat_sys_x86_truncate64(const char __user *, unsigned long,
+                                          unsigned long);
+asmlinkage long compat_sys_x86_ftruncate64(unsigned int, unsigned long,
+                                           unsigned long);
 
-asmlinkage long sys32_stat64(const char __user *, struct stat64 __user *);
-asmlinkage long sys32_lstat64(const char __user *, struct stat64 __user *);
-asmlinkage long sys32_fstat64(unsigned int, struct stat64 __user *);
-asmlinkage long sys32_fstatat(unsigned int, const char __user *,
+asmlinkage long compat_sys_x86_stat64(const char __user *,
+                                      struct stat64 __user *);
+asmlinkage long compat_sys_x86_lstat64(const char __user *,
+                                       struct stat64 __user *);
+asmlinkage long compat_sys_x86_fstat64(unsigned int, struct stat64 __user *);
+asmlinkage long compat_sys_x86_fstatat(unsigned int, const char __user *,
                               struct stat64 __user *, int);
 struct mmap_arg_struct32;
-asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *);
+asmlinkage long compat_sys_x86_mmap(struct mmap_arg_struct32 __user *);
 
-asmlinkage long sys32_waitpid(compat_pid_t, unsigned int __user *, int);
+asmlinkage long compat_sys_x86_waitpid(compat_pid_t, unsigned int __user *,
+                                       int);
 
-asmlinkage long sys32_pread(unsigned int, char __user *, u32, u32, u32);
-asmlinkage long sys32_pwrite(unsigned int, const char __user *, u32, u32, u32);
+asmlinkage long compat_sys_x86_pread(unsigned int, char __user *, u32, u32,
+                                     u32);
+asmlinkage long compat_sys_x86_pwrite(unsigned int, const char __user *, u32,
+                                      u32, u32);
 
-long sys32_fadvise64_64(int, __u32, __u32, __u32, __u32, int);
-long sys32_vm86_warning(void);
+asmlinkage long compat_sys_x86_fadvise64_64(int, __u32, __u32, __u32, __u32,
+                                            int);
 
-asmlinkage ssize_t sys32_readahead(int, unsigned, unsigned, size_t);
-asmlinkage long sys32_sync_file_range(int, unsigned, unsigned,
-                                      unsigned, unsigned, int);
-asmlinkage long sys32_fadvise64(int, unsigned, unsigned, size_t, int);
-asmlinkage long sys32_fallocate(int, int, unsigned,
-                                unsigned, unsigned, unsigned);
+asmlinkage ssize_t compat_sys_x86_readahead(int, unsigned int, unsigned int,
+                                            size_t);
+asmlinkage long compat_sys_x86_sync_file_range(int, unsigned int, unsigned int,
+                                               unsigned int, unsigned int,
+                                               int);
+asmlinkage long compat_sys_x86_fadvise64(int, unsigned int, unsigned int,
+                                         size_t, int);
+asmlinkage long compat_sys_x86_fallocate(int, int, unsigned int, unsigned int,
+                                         unsigned int, unsigned int);
+asmlinkage long compat_sys_x86_clone(unsigned long, unsigned long, int __user *,
+                                     unsigned long, int __user *);
 
 /* ia32/ia32_signal.c */
 asmlinkage long sys32_sigreturn(void);
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index 2b8f18ca5874..84137c22fdfa 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -140,7 +140,7 @@ static inline unsigned long build_cr3_noflush(pgd_t *pgd, u16 asid)
 #else
 #define __flush_tlb() __native_flush_tlb()
 #define __flush_tlb_global() __native_flush_tlb_global()
-#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
+#define __flush_tlb_one_user(addr) __native_flush_tlb_one_user(addr)
 #endif
 
 static inline bool tlb_defer_switch_to_init_mm(void)
@@ -400,7 +400,7 @@ static inline void __native_flush_tlb_global(void)
 /*
  * flush one page in the user mapping
  */
-static inline void __native_flush_tlb_single(unsigned long addr)
+static inline void __native_flush_tlb_one_user(unsigned long addr)
 {
         u32 loaded_mm_asid = this_cpu_read(cpu_tlbstate.loaded_mm_asid);
 
@@ -437,18 +437,31 @@ static inline void __flush_tlb_all(void)
 /*
  * flush one page in the kernel mapping
  */
-static inline void __flush_tlb_one(unsigned long addr)
+static inline void __flush_tlb_one_kernel(unsigned long addr)
 {
         count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ONE);
-        __flush_tlb_single(addr);
+
+        /*
+         * If PTI is off, then __flush_tlb_one_user() is just INVLPG or its
+         * paravirt equivalent.  Even with PCID, this is sufficient: we only
+         * use PCID if we also use global PTEs for the kernel mapping, and
+         * INVLPG flushes global translations across all address spaces.
+         *
+         * If PTI is on, then the kernel is mapped with non-global PTEs, and
+         * __flush_tlb_one_user() will flush the given address for the current
+         * kernel address space and for its usermode counterpart, but it does
+         * not flush it for other address spaces.
+         */
+        __flush_tlb_one_user(addr);
 
         if (!static_cpu_has(X86_FEATURE_PTI))
                 return;
 
         /*
-         * __flush_tlb_single() will have cleared the TLB entry for this ASID,
-         * but since kernel space is replicated across all, we must also
-         * invalidate all others.
+         * See above.  We need to propagate the flush to all other address
+         * spaces.  In principle, we only need to propagate it to kernelmode
+         * address spaces, but the extra bookkeeping we would need is not
+         * worth it.
          */
         invalidate_other_asid();
 }
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 8b6780751132..5db8b0b10766 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -352,6 +352,7 @@ enum vmcs_field {
 #define INTR_TYPE_NMI_INTR              (2 << 8) /* NMI */
 #define INTR_TYPE_HARD_EXCEPTION        (3 << 8) /* processor exception */
 #define INTR_TYPE_SOFT_INTR             (4 << 8) /* software interrupt */
+#define INTR_TYPE_PRIV_SW_EXCEPTION     (5 << 8) /* ICE breakpoint - undocumented */
 #define INTR_TYPE_SOFT_EXCEPTION        (6 << 8) /* software exception */
 
 /* GUEST_INTERRUPTIBILITY_INFO flags. */
diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h
index 197c2e6c7376..099414345865 100644
--- a/arch/x86/include/uapi/asm/hyperv.h
+++ b/arch/x86/include/uapi/asm/hyperv.h
@@ -241,24 +241,24 @@
 #define HV_X64_MSR_REENLIGHTENMENT_CONTROL      0x40000106
 
 struct hv_reenlightenment_control {
-        u64 vector:8;
-        u64 reserved1:8;
-        u64 enabled:1;
-        u64 reserved2:15;
-        u64 target_vp:32;
+        __u64 vector:8;
+        __u64 reserved1:8;
+        __u64 enabled:1;
+        __u64 reserved2:15;
+        __u64 target_vp:32;
 };
 
 #define HV_X64_MSR_TSC_EMULATION_CONTROL        0x40000107
 #define HV_X64_MSR_TSC_EMULATION_STATUS         0x40000108
 
 struct hv_tsc_emulation_control {
-        u64 enabled:1;
-        u64 reserved:63;
+        __u64 enabled:1;
+        __u64 reserved:63;
 };
 
 struct hv_tsc_emulation_status {
-        u64 inprogress:1;
-        u64 reserved:63;
+        __u64 inprogress:1;
+        __u64 reserved:63;
 };
 
 #define HV_X64_MSR_HYPERCALL_ENABLE             0x00000001
diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h
index 7a2ade4aa235..6cfa9c8cb7d6 100644
--- a/arch/x86/include/uapi/asm/kvm_para.h
+++ b/arch/x86/include/uapi/asm/kvm_para.h
@@ -26,6 +26,7 @@
 #define KVM_FEATURE_PV_EOI              6
 #define KVM_FEATURE_PV_UNHALT           7
 #define KVM_FEATURE_PV_TLB_FLUSH        9
+#define KVM_FEATURE_ASYNC_PF_VMEXIT     10
 
 /* The last 8 bits are used to indicate how to interpret the flags field
  * in pvclock structure. If no bits are set, all flags are ignored.
diff --git a/arch/x86/include/uapi/asm/mce.h b/arch/x86/include/uapi/asm/mce.h
index 91723461dc1f..435db58a7bad 100644
--- a/arch/x86/include/uapi/asm/mce.h
+++ b/arch/x86/include/uapi/asm/mce.h
@@ -30,6 +30,7 @@ struct mce {
         __u64 synd;     /* MCA_SYND MSR: only valid on SMCA systems */
         __u64 ipid;     /* MCA_IPID MSR: only valid on SMCA systems */
         __u64 ppin;     /* Protected Processor Inventory Number */
+        __u32 microcode;/* Microcode revision */
 };
 
 #define MCE_GET_RECORD_LEN   _IOR('M', 1, int)
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index 6db28f17ff28..c88e0b127810 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -235,7 +235,7 @@ int amd_cache_northbridges(void)
         if (boot_cpu_data.x86 == 0x10 &&
             boot_cpu_data.x86_model >= 0x8 &&
             (boot_cpu_data.x86_model > 0x9 ||
-             boot_cpu_data.x86_mask >= 0x1))
+             boot_cpu_data.x86_stepping >= 0x1))
                 amd_northbridges.flags |= AMD_NB_L3_INDEX_DISABLE;
 
         if (boot_cpu_data.x86 == 0x15)
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 25ddf02598d2..b203af0855b5 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -546,7 +546,7 @@ static DEFINE_PER_CPU(struct clock_event_device, lapic_events);
 
 static u32 hsx_deadline_rev(void)
 {
-        switch (boot_cpu_data.x86_mask) {
+        switch (boot_cpu_data.x86_stepping) {
         case 0x02: return 0x3a; /* EP */
         case 0x04: return 0x0f; /* EX */
         }
@@ -556,7 +556,7 @@ static u32 hsx_deadline_rev(void)
 
 static u32 bdx_deadline_rev(void)
 {
-        switch (boot_cpu_data.x86_mask) {
+        switch (boot_cpu_data.x86_stepping) {
         case 0x02: return 0x00000011;
         case 0x03: return 0x0700000e;
         case 0x04: return 0x0f00000c;
@@ -568,7 +568,7 @@ static u32 bdx_deadline_rev(void)
 
 static u32 skx_deadline_rev(void)
 {
-        switch (boot_cpu_data.x86_mask) {
+        switch (boot_cpu_data.x86_stepping) {
         case 0x03: return 0x01000136;
         case 0x04: return 0x02000014;
         }
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 8ad2e410974f..7c5538769f7e 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1603,7 +1603,7 @@ static void __init delay_with_tsc(void)
         do {
                 rep_nop();
                 now = rdtsc();
-        } while ((now - start) < 40000000000UL / HZ &&
+        } while ((now - start) < 40000000000ULL / HZ &&
                 time_before_eq(jiffies, end));
 }
 
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 3cc471beb50b..bb6f7a2148d7 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -134,21 +134,40 @@ static void apic_update_vector(struct irq_data *irqd, unsigned int newvec,
 {
         struct apic_chip_data *apicd = apic_chip_data(irqd);
         struct irq_desc *desc = irq_data_to_desc(irqd);
+        bool managed = irqd_affinity_is_managed(irqd);
 
         lockdep_assert_held(&vector_lock);
 
         trace_vector_update(irqd->irq, newvec, newcpu, apicd->vector,
                             apicd->cpu);
 
-        /* Setup the vector move, if required  */
-        if (apicd->vector && cpu_online(apicd->cpu)) {
+        /*
+         * If there is no vector associated or if the associated vector is
+         * the shutdown vector, which is associated to make PCI/MSI
+         * shutdown mode work, then there is nothing to release. Clear out
+         * prev_vector for this and the offlined target case.
+         */
+        apicd->prev_vector = 0;
+        if (!apicd->vector || apicd->vector == MANAGED_IRQ_SHUTDOWN_VECTOR)
+                goto setnew;
+        /*
+         * If the target CPU of the previous vector is online, then mark
+         * the vector as move in progress and store it for cleanup when the
+         * first interrupt on the new vector arrives. If the target CPU is
+         * offline then the regular release mechanism via the cleanup
+         * vector is not possible and the vector can be immediately freed
+         * in the underlying matrix allocator.
+         */
+        if (cpu_online(apicd->cpu)) {
                 apicd->move_in_progress = true;
                 apicd->prev_vector = apicd->vector;
                 apicd->prev_cpu = apicd->cpu;
         } else {
-                apicd->prev_vector = 0;
+                irq_matrix_free(vector_matrix, apicd->cpu, apicd->vector,
+                                managed);
         }
 
+setnew:
         apicd->vector = newvec;
         apicd->cpu = newcpu;
         BUG_ON(!IS_ERR_OR_NULL(per_cpu(vector_irq, newcpu)[newvec]));
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 46b675aaf20b..f11910b44638 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -1176,16 +1176,25 @@ static void __init decode_gam_rng_tbl(unsigned long ptr)
 
         uv_gre_table = gre;
         for (; gre->type != UV_GAM_RANGE_TYPE_UNUSED; gre++) {
+                unsigned long size = ((unsigned long)(gre->limit - lgre)
+                                        << UV_GAM_RANGE_SHFT);
+                int order = 0;
+                char suffix[] = " KMGTPE";
+
+                while (size > 9999 && order < sizeof(suffix)) {
+                        size /= 1024;
+                        order++;
+                }
+
                 if (!index) {
                         pr_info("UV: GAM Range Table...\n");
                         pr_info("UV:  # %20s %14s %5s %4s %5s %3s %2s\n", "Range", "", "Size", "Type", "NASID", "SID", "PN");
                 }
-                pr_info("UV: %2d: 0x%014lx-0x%014lx %5luG %3d   %04x  %02x %02x\n",
+                pr_info("UV: %2d: 0x%014lx-0x%014lx %5lu%c %3d   %04x  %02x %02x\n",
                         index++,
                         (unsigned long)lgre << UV_GAM_RANGE_SHFT,
                         (unsigned long)gre->limit << UV_GAM_RANGE_SHFT,
-                        ((unsigned long)(gre->limit - lgre)) >>
-                                (30 - UV_GAM_RANGE_SHFT), /* 64M -> 1G */
+                        size, suffix[order],
                         gre->type, gre->nasid, gre->sockid, gre->pnode);
 
                 lgre = gre->limit;
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index fa1261eefa16..f91ba53e06c8 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -18,7 +18,7 @@ void foo(void)
         OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
         OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor);
         OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model);
-        OFFSET(CPUINFO_x86_mask, cpuinfo_x86, x86_mask);
+        OFFSET(CPUINFO_x86_stepping, cpuinfo_x86, x86_stepping);
         OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level);
         OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability);
         OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id);
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 5bddbdcbc4a3..f0e6456ca7d3 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -119,7 +119,7 @@ static void init_amd_k6(struct cpuinfo_x86 *c)
                 return;
         }
 
-        if (c->x86_model == 6 && c->x86_mask == 1) {
+        if (c->x86_model == 6 && c->x86_stepping == 1) {
                 const int K6_BUG_LOOP = 1000000;
                 int n;
                 void (*f_vide)(void);
@@ -149,7 +149,7 @@ static void init_amd_k6(struct cpuinfo_x86 *c)
 
         /* K6 with old style WHCR */
         if (c->x86_model < 8 ||
-           (c->x86_model == 8 && c->x86_mask < 8)) {
+           (c->x86_model == 8 && c->x86_stepping < 8)) {
                 /* We can only write allocate on the low 508Mb */
                 if (mbytes > 508)
                         mbytes = 508;
@@ -168,7 +168,7 @@ static void init_amd_k6(struct cpuinfo_x86 *c)
                 return;
         }
 
-        if ((c->x86_model == 8 && c->x86_mask > 7) ||
+        if ((c->x86_model == 8 && c->x86_stepping > 7) ||
              c->x86_model == 9 || c->x86_model == 13) {
                 /* The more serious chips .. */
 
@@ -221,7 +221,7 @@ static void init_amd_k7(struct cpuinfo_x86 *c)
          * are more robust with CLK_CTL set to 200xxxxx instead of 600xxxxx
          * As per AMD technical note 27212 0.2
          */
-        if ((c->x86_model == 8 && c->x86_mask >= 1) || (c->x86_model > 8)) {
+        if ((c->x86_model == 8 && c->x86_stepping >= 1) || (c->x86_model > 8)) {
                 rdmsr(MSR_K7_CLK_CTL, l, h);
                 if ((l & 0xfff00000) != 0x20000000) {
                         pr_info("CPU: CLK_CTL MSR was %x. Reprogramming to %x\n",
@@ -241,12 +241,12 @@ static void init_amd_k7(struct cpuinfo_x86 *c)
          * but they are not certified as MP capable.
          */
         /* Athlon 660/661 is valid. */
-        if ((c->x86_model == 6) && ((c->x86_mask == 0) ||
-            (c->x86_mask == 1)))
+        if ((c->x86_model == 6) && ((c->x86_stepping == 0) ||
+            (c->x86_stepping == 1)))
                 return;
 
         /* Duron 670 is valid */
-        if ((c->x86_model == 7) && (c->x86_mask == 0))
+        if ((c->x86_model == 7) && (c->x86_stepping == 0))
                 return;
 
         /*
@@ -256,8 +256,8 @@ static void init_amd_k7(struct cpuinfo_x86 *c)
          * See http://www.heise.de/newsticker/data/jow-18.10.01-000 for
          * more.
          */
-        if (((c->x86_model == 6) && (c->x86_mask >= 2)) ||
-            ((c->x86_model == 7) && (c->x86_mask >= 1)) ||
+        if (((c->x86_model == 6) && (c->x86_stepping >= 2)) ||
+            ((c->x86_model == 7) && (c->x86_stepping >= 1)) ||
              (c->x86_model > 7))
                 if (cpu_has(c, X86_FEATURE_MP))
                         return;
@@ -628,7 +628,7 @@ static void early_init_amd(struct cpuinfo_x86 *c)
         /*  Set MTRR capability flag if appropriate */
         if (c->x86 == 5)
                 if (c->x86_model == 13 || c->x86_model == 9 ||
-                    (c->x86_model == 8 && c->x86_mask >= 8))
+                    (c->x86_model == 8 && c->x86_stepping >= 8))
                         set_cpu_cap(c, X86_FEATURE_K6_MTRR);
 #endif
 #if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_PCI)
@@ -795,7 +795,7 @@ static void init_amd_zn(struct cpuinfo_x86 *c)
          * Fix erratum 1076: CPB feature bit not being set in CPUID. It affects
          * all up to and including B1.
          */
-        if (c->x86_model <= 1 && c->x86_mask <= 1)
+        if (c->x86_model <= 1 && c->x86_stepping <= 1)
                 set_cpu_cap(c, X86_FEATURE_CPB);
 }
 
@@ -906,11 +906,11 @@ static unsigned int amd_size_cache(struct cpuinfo_x86 *c, unsigned int size)
         /* AMD errata T13 (order #21922) */
         if ((c->x86 == 6)) {
                 /* Duron Rev A0 */
-                if (c->x86_model == 3 && c->x86_mask == 0)
+                if (c->x86_model == 3 && c->x86_stepping == 0)
                         size = 64;
                 /* Tbird rev A1/A2 */
                 if (c->x86_model == 4 &&
-                        (c->x86_mask == 0 || c->x86_mask == 1))
+                        (c->x86_stepping == 0 || c->x86_stepping == 1))
                         size = 256;
         }
         return size;
@@ -1047,7 +1047,7 @@ static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum)
         }
 
         /* OSVW unavailable or ID unknown, match family-model-stepping range */
-        ms = (cpu->x86_model << 4) | cpu->x86_mask;
+        ms = (cpu->x86_model << 4) | cpu->x86_stepping;
         while ((range = *erratum++))
                 if ((cpu->x86 == AMD_MODEL_RANGE_FAMILY(range)) &&
                     (ms >= AMD_MODEL_RANGE_START(range)) &&
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 71949bf2de5a..bfca937bdcc3 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -162,8 +162,7 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
         if (cmdline_find_option_bool(boot_command_line, "nospectre_v2"))
                 return SPECTRE_V2_CMD_NONE;
         else {
-                ret = cmdline_find_option(boot_command_line, "spectre_v2", arg,
-                                          sizeof(arg));
+                ret = cmdline_find_option(boot_command_line, "spectre_v2", arg, sizeof(arg));
                 if (ret < 0)
                         return SPECTRE_V2_CMD_AUTO;
 
@@ -175,8 +174,7 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
                 }
 
                 if (i >= ARRAY_SIZE(mitigation_options)) {
-                        pr_err("unknown option (%s). Switching to AUTO select\n",
-                               mitigation_options[i].option);
+                        pr_err("unknown option (%s). Switching to AUTO select\n", arg);
                         return SPECTRE_V2_CMD_AUTO;
                 }
         }
@@ -185,8 +183,7 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
              cmd == SPECTRE_V2_CMD_RETPOLINE_AMD ||
              cmd == SPECTRE_V2_CMD_RETPOLINE_GENERIC) &&
             !IS_ENABLED(CONFIG_RETPOLINE)) {
-                pr_err("%s selected but not compiled in. Switching to AUTO select\n",
-                       mitigation_options[i].option);
+                pr_err("%s selected but not compiled in. Switching to AUTO select\n", mitigation_options[i].option);
                 return SPECTRE_V2_CMD_AUTO;
         }
 
@@ -256,14 +253,14 @@ static void __init spectre_v2_select_mitigation(void)
                         goto retpoline_auto;
                 break;
         }
-        pr_err("kernel not compiled with retpoline; no mitigation available!");
+        pr_err("Spectre mitigation: kernel not compiled with retpoline; no mitigation available!");
         return;
 
 retpoline_auto:
         if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) {
         retpoline_amd:
                 if (!boot_cpu_has(X86_FEATURE_LFENCE_RDTSC)) {
-                        pr_err("LFENCE not serializing. Switching to generic retpoline\n");
+                        pr_err("Spectre mitigation: LFENCE not serializing, switching to generic retpoline\n");
                         goto retpoline_generic;
                 }
                 mode = retp_compiler() ? SPECTRE_V2_RETPOLINE_AMD :
@@ -281,7 +278,7 @@ retpoline_auto:
         pr_info("%s\n", spectre_v2_strings[mode]);
 
         /*
-         * If neither SMEP or KPTI are available, there is a risk of
+         * If neither SMEP nor PTI are available, there is a risk of
          * hitting userspace addresses in the RSB after a context switch
          * from a shallow call stack to a deeper one. To prevent this fill
          * the entire RSB, even when using IBRS.
@@ -295,21 +292,29 @@ retpoline_auto:
         if ((!boot_cpu_has(X86_FEATURE_PTI) &&
              !boot_cpu_has(X86_FEATURE_SMEP)) || is_skylake_era()) {
                 setup_force_cpu_cap(X86_FEATURE_RSB_CTXSW);
-                pr_info("Filling RSB on context switch\n");
+                pr_info("Spectre v2 mitigation: Filling RSB on context switch\n");
         }
 
         /* Initialize Indirect Branch Prediction Barrier if supported */
         if (boot_cpu_has(X86_FEATURE_IBPB)) {
                 setup_force_cpu_cap(X86_FEATURE_USE_IBPB);
-                pr_info("Enabling Indirect Branch Prediction Barrier\n");
+                pr_info("Spectre v2 mitigation: Enabling Indirect Branch Prediction Barrier\n");
+        }
+
+        /*
+         * Retpoline means the kernel is safe because it has no indirect
+         * branches. But firmware isn't, so use IBRS to protect that.
+         */
+        if (boot_cpu_has(X86_FEATURE_IBRS)) {
+                setup_force_cpu_cap(X86_FEATURE_USE_IBRS_FW);
+                pr_info("Enabling Restricted Speculation for firmware calls\n");
         }
 }
 
 #undef pr_fmt
 
 #ifdef CONFIG_SYSFS
-ssize_t cpu_show_meltdown(struct device *dev,
-                          struct device_attribute *attr, char *buf)
+ssize_t cpu_show_meltdown(struct device *dev, struct device_attribute *attr, char *buf)
 {
         if (!boot_cpu_has_bug(X86_BUG_CPU_MELTDOWN))
                 return sprintf(buf, "Not affected\n");
@@ -318,28 +323,21 @@ ssize_t cpu_show_meltdown(struct device *dev,
         return sprintf(buf, "Vulnerable\n");
 }
 
-ssize_t cpu_show_spectre_v1(struct device *dev,
-                            struct device_attribute *attr, char *buf)
+ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr, char *buf)
 {
         if (!boot_cpu_has_bug(X86_BUG_SPECTRE_V1))
                 return sprintf(buf, "Not affected\n");
         return sprintf(buf, "Mitigation: __user pointer sanitization\n");
 }
 
-ssize_t cpu_show_spectre_v2(struct device *dev,
-                            struct device_attribute *attr, char *buf)
+ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, char *buf)
 {
         if (!boot_cpu_has_bug(X86_BUG_SPECTRE_V2))
                 return sprintf(buf, "Not affected\n");
 
-        return sprintf(buf, "%s%s%s\n", spectre_v2_strings[spectre_v2_enabled],
+        return sprintf(buf, "%s%s%s%s\n", spectre_v2_strings[spectre_v2_enabled],
                        boot_cpu_has(X86_FEATURE_USE_IBPB) ? ", IBPB" : "",
+                       boot_cpu_has(X86_FEATURE_USE_IBRS_FW) ? ", IBRS_FW" : "",
                        spectre_v2_module_string());
 }
 #endif
-
-void __ibp_barrier(void)
-{
-        __wrmsr(MSR_IA32_PRED_CMD, PRED_CMD_IBPB, 0);
-}
-EXPORT_SYMBOL_GPL(__ibp_barrier);
diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c
index c578cd29c2d2..e5ec0f11c0de 100644
--- a/arch/x86/kernel/cpu/centaur.c
+++ b/arch/x86/kernel/cpu/centaur.c
@@ -140,7 +140,7 @@ static void init_centaur(struct cpuinfo_x86 *c)
                         clear_cpu_cap(c, X86_FEATURE_TSC);
                         break;
                 case 8:
-                        switch (c->x86_mask) {
+                        switch (c->x86_stepping) {
                         default:
                         name = "2";
                                 break;
@@ -215,7 +215,7 @@ centaur_size_cache(struct cpuinfo_x86 *c, unsigned int size)
          *  - Note, it seems this may only be in engineering samples.
          */
         if ((c->x86 == 6) && (c->x86_model == 9) &&
-                                (c->x86_mask == 1) && (size == 65))
+                                (c->x86_stepping == 1) && (size == 65))
                 size -= 1;
         return size;
 }
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index d63f4b5706e4..348cf4821240 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -731,7 +731,7 @@ void cpu_detect(struct cpuinfo_x86 *c)
                 cpuid(0x00000001, &tfms, &misc, &junk, &cap0);
                 c->x86          = x86_family(tfms);
                 c->x86_model    = x86_model(tfms);
-                c->x86_mask     = x86_stepping(tfms);
+                c->x86_stepping = x86_stepping(tfms);
 
                 if (cap0 & (1<<19)) {
                         c->x86_clflush_size = ((misc >> 8) & 0xff) * 8;
@@ -1184,9 +1184,9 @@ static void identify_cpu(struct cpuinfo_x86 *c)
         int i;
 
         c->loops_per_jiffy = loops_per_jiffy;
-        c->x86_cache_size = -1;
+        c->x86_cache_size = 0;
         c->x86_vendor = X86_VENDOR_UNKNOWN;
-        c->x86_model = c->x86_mask = 0; /* So far unknown... */
+        c->x86_model = c->x86_stepping = 0;     /* So far unknown... */
         c->x86_vendor_id[0] = '\0'; /* Unset */
         c->x86_model_id[0] = '\0';  /* Unset */
         c->x86_max_cores = 1;
@@ -1378,8 +1378,8 @@ void print_cpu_info(struct cpuinfo_x86 *c)
 
         pr_cont(" (family: 0x%x, model: 0x%x", c->x86, c->x86_model);
 
-        if (c->x86_mask || c->cpuid_level >= 0)
-                pr_cont(", stepping: 0x%x)\n", c->x86_mask);
+        if (c->x86_stepping || c->cpuid_level >= 0)
+                pr_cont(", stepping: 0x%x)\n", c->x86_stepping);
         else
                 pr_cont(")\n");
 }
@@ -1749,3 +1749,33 @@ static int __init init_cpu_syscore(void)
         return 0;
 }
 core_initcall(init_cpu_syscore);
+
+/*
+ * The microcode loader calls this upon late microcode load to recheck features,
+ * only when microcode has been updated. Caller holds microcode_mutex and CPU
+ * hotplug lock.
+ */
+void microcode_check(void)
+{
+        struct cpuinfo_x86 info;
+
+        perf_check_microcode();
+
+        /* Reload CPUID max function as it might've changed. */
+        info.cpuid_level = cpuid_eax(0);
+
+        /*
+         * Copy all capability leafs to pick up the synthetic ones so that
+         * memcmp() below doesn't fail on that. The ones coming from CPUID will
+         * get overwritten in get_cpu_cap().
+         */
+        memcpy(&info.x86_capability, &boot_cpu_data.x86_capability, sizeof(info.x86_capability));
+
+        get_cpu_cap(&info);
+
+        if (!memcmp(&info.x86_capability, &boot_cpu_data.x86_capability, sizeof(info.x86_capability)))
+                return;
+
+        pr_warn("x86/CPU: CPU features have changed after loading microcode, but might not take effect.\n");
+        pr_warn("x86/CPU: Please consider either early loading through initrd/built-in or a potential BIOS update.\n");
+}
diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c
index 6b4bb335641f..8949b7ae6d92 100644
--- a/arch/x86/kernel/cpu/cyrix.c
+++ b/arch/x86/kernel/cpu/cyrix.c
@@ -215,7 +215,7 @@ static void init_cyrix(struct cpuinfo_x86 *c)
 
         /* common case step number/rev -- exceptions handled below */
         c->x86_model = (dir1 >> 4) + 1;
-        c->x86_mask = dir1 & 0xf;
+        c->x86_stepping = dir1 & 0xf;
 
         /* Now cook; the original recipe is by Channing Corn, from Cyrix.
          * We do the same thing for each generation: we work out
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 319bf989fad1..c3af167d0a70 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -105,7 +105,7 @@ static void probe_xeon_phi_r3mwait(struct cpuinfo_x86 *c)
 /*
  * Early microcode releases for the Spectre v2 mitigation were broken.
  * Information taken from;
- * - https://newsroom.intel.com/wp-content/uploads/sites/11/2018/01/microcode-update-guidance.pdf
+ * - https://newsroom.intel.com/wp-content/uploads/sites/11/2018/03/microcode-update-guidance.pdf
  * - https://kb.vmware.com/s/article/52345
  * - Microcode revisions observed in the wild
  * - Release note from 20180108 microcode release
@@ -116,15 +116,13 @@ struct sku_microcode {
         u32 microcode;
 };
 static const struct sku_microcode spectre_bad_microcodes[] = {
-        { INTEL_FAM6_KABYLAKE_DESKTOP,  0x0B,   0x84 },
-        { INTEL_FAM6_KABYLAKE_DESKTOP,  0x0A,   0x84 },
-        { INTEL_FAM6_KABYLAKE_DESKTOP,  0x09,   0x84 },
-        { INTEL_FAM6_KABYLAKE_MOBILE,   0x0A,   0x84 },
-        { INTEL_FAM6_KABYLAKE_MOBILE,   0x09,   0x84 },
+        { INTEL_FAM6_KABYLAKE_DESKTOP,  0x0B,   0x80 },
+        { INTEL_FAM6_KABYLAKE_DESKTOP,  0x0A,   0x80 },
+        { INTEL_FAM6_KABYLAKE_DESKTOP,  0x09,   0x80 },
+        { INTEL_FAM6_KABYLAKE_MOBILE,   0x0A,   0x80 },
+        { INTEL_FAM6_KABYLAKE_MOBILE,   0x09,   0x80 },
         { INTEL_FAM6_SKYLAKE_X,         0x03,   0x0100013e },
         { INTEL_FAM6_SKYLAKE_X,         0x04,   0x0200003c },
-        { INTEL_FAM6_SKYLAKE_MOBILE,    0x03,   0xc2 },
-        { INTEL_FAM6_SKYLAKE_DESKTOP,   0x03,   0xc2 },
         { INTEL_FAM6_BROADWELL_CORE,    0x04,   0x28 },
         { INTEL_FAM6_BROADWELL_GT3E,    0x01,   0x1b },
         { INTEL_FAM6_BROADWELL_XEON_D,  0x02,   0x14 },
@@ -136,8 +134,6 @@ static const struct sku_microcode spectre_bad_microcodes[] = {
         { INTEL_FAM6_HASWELL_X,         0x02,   0x3b },
         { INTEL_FAM6_HASWELL_X,         0x04,   0x10 },
         { INTEL_FAM6_IVYBRIDGE_X,       0x04,   0x42a },
-        /* Updated in the 20180108 release; blacklist until we know otherwise */
-        { INTEL_FAM6_ATOM_GEMINI_LAKE,  0x01,   0x22 },
         /* Observed in the wild */
         { INTEL_FAM6_SANDYBRIDGE_X,     0x06,   0x61b },
         { INTEL_FAM6_SANDYBRIDGE_X,     0x07,   0x712 },
@@ -147,9 +143,16 @@ static bool bad_spectre_microcode(struct cpuinfo_x86 *c)
 {
         int i;
 
+        /*
+         * We know that the hypervisor lie to us on the microcode version so
+         * we may as well hope that it is running the correct version.
+         */
+        if (cpu_has(c, X86_FEATURE_HYPERVISOR))
+                return false;
+
         for (i = 0; i < ARRAY_SIZE(spectre_bad_microcodes); i++) {
                 if (c->x86_model == spectre_bad_microcodes[i].model &&
-                    c->x86_mask == spectre_bad_microcodes[i].stepping)
+                    c->x86_stepping == spectre_bad_microcodes[i].stepping)
                         return (c->microcode <= spectre_bad_microcodes[i].microcode);
         }
         return false;
@@ -196,7 +199,7 @@ static void early_init_intel(struct cpuinfo_x86 *c)
          * need the microcode to have already been loaded... so if it is
          * not, recommend a BIOS update and disable large pages.
          */
-        if (c->x86 == 6 && c->x86_model == 0x1c && c->x86_mask <= 2 &&
+        if (c->x86 == 6 && c->x86_model == 0x1c && c->x86_stepping <= 2 &&
             c->microcode < 0x20e) {
                 pr_warn("Atom PSE erratum detected, BIOS microcode update recommended\n");
                 clear_cpu_cap(c, X86_FEATURE_PSE);
@@ -212,7 +215,7 @@ static void early_init_intel(struct cpuinfo_x86 *c)
 
         /* CPUID workaround for 0F33/0F34 CPU */
         if (c->x86 == 0xF && c->x86_model == 0x3
-            && (c->x86_mask == 0x3 || c->x86_mask == 0x4))
+            && (c->x86_stepping == 0x3 || c->x86_stepping == 0x4))
                 c->x86_phys_bits = 36;
 
         /*
@@ -310,7 +313,7 @@ int ppro_with_ram_bug(void)
         if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
             boot_cpu_data.x86 == 6 &&
             boot_cpu_data.x86_model == 1 &&
-            boot_cpu_data.x86_mask < 8) {
+            boot_cpu_data.x86_stepping < 8) {
                 pr_info("Pentium Pro with Errata#50 detected. Taking evasive action.\n");
                 return 1;
         }
@@ -327,7 +330,7 @@ static void intel_smp_check(struct cpuinfo_x86 *c)
          * Mask B, Pentium, but not Pentium MMX
          */
         if (c->x86 == 5 &&
-            c->x86_mask >= 1 && c->x86_mask <= 4 &&
+            c->x86_stepping >= 1 && c->x86_stepping <= 4 &&
             c->x86_model <= 3) {
                 /*
                  * Remember we have B step Pentia with bugs
@@ -370,7 +373,7 @@ static void intel_workarounds(struct cpuinfo_x86 *c)
          * SEP CPUID bug: Pentium Pro reports SEP but doesn't have it until
          * model 3 mask 3
          */
-        if ((c->x86<<8 | c->x86_model<<4 | c->x86_mask) < 0x633)
+        if ((c->x86<<8 | c->x86_model<<4 | c->x86_stepping) < 0x633)
                 clear_cpu_cap(c, X86_FEATURE_SEP);
 
         /*
@@ -388,7 +391,7 @@ static void intel_workarounds(struct cpuinfo_x86 *c)
          * P4 Xeon erratum 037 workaround.
          * Hardware prefetcher may cause stale data to be loaded into the cache.
          */
-        if ((c->x86 == 15) && (c->x86_model == 1) && (c->x86_mask == 1)) {
+        if ((c->x86 == 15) && (c->x86_model == 1) && (c->x86_stepping == 1)) {
                 if (msr_set_bit(MSR_IA32_MISC_ENABLE,
                                 MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE_BIT) > 0) {
                         pr_info("CPU: C0 stepping P4 Xeon detected.\n");
@@ -403,7 +406,7 @@ static void intel_workarounds(struct cpuinfo_x86 *c)
          * Specification Update").
          */
         if (boot_cpu_has(X86_FEATURE_APIC) && (c->x86<<8 | c->x86_model<<4) == 0x520 &&
-            (c->x86_mask < 0x6 || c->x86_mask == 0xb))
+            (c->x86_stepping < 0x6 || c->x86_stepping == 0xb))
                 set_cpu_bug(c, X86_BUG_11AP);
 
 
@@ -650,7 +653,7 @@ static void init_intel(struct cpuinfo_x86 *c)
                 case 6:
                         if (l2 == 128)
                                 p = "Celeron (Mendocino)";
-                        else if (c->x86_mask == 0 || c->x86_mask == 5)
+                        else if (c->x86_stepping == 0 || c->x86_stepping == 5)
                                 p = "Celeron-A";
                         break;
 
diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c
index 410629f10ad3..589b948e6e01 100644
--- a/arch/x86/kernel/cpu/intel_rdt.c
+++ b/arch/x86/kernel/cpu/intel_rdt.c
@@ -819,7 +819,7 @@ static __init void rdt_quirks(void)
                         cache_alloc_hsw_probe();
                 break;
         case INTEL_FAM6_SKYLAKE_X:
-                if (boot_cpu_data.x86_mask <= 4)
+                if (boot_cpu_data.x86_stepping <= 4)
                         set_rdt_options("!cmt,!mbmtotal,!mbmlocal,!l3cat");
         }
 }
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index bdab7d2f51af..fca759d272a1 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -1804,6 +1804,7 @@ static int rdtgroup_mkdir_ctrl_mon(struct kernfs_node *parent_kn,
                 goto out_common_fail;
         }
         closid = ret;
+        ret = 0;
 
         rdtgrp->closid = closid;
         list_add(&rdtgrp->rdtgroup_list, &rdt_all_groups);
diff --git a/arch/x86/kernel/cpu/mcheck/mce-internal.h b/arch/x86/kernel/cpu/mcheck/mce-internal.h
index aa0d5df9dc60..e956eb267061 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-internal.h
+++ b/arch/x86/kernel/cpu/mcheck/mce-internal.h
@@ -115,4 +115,19 @@ static inline void mce_unregister_injector_chain(struct notifier_block *nb)	{ }
 
 extern struct mca_config mca_cfg;
 
+#ifndef CONFIG_X86_64
+/*
+ * On 32-bit systems it would be difficult to safely unmap a poison page
+ * from the kernel 1:1 map because there are no non-canonical addresses that
+ * we can use to refer to the address without risking a speculative access.
+ * However, this isn't much of an issue because:
+ * 1) Few unmappable pages are in the 1:1 map. Most are in HIGHMEM which
+ *    are only mapped into the kernel as needed
+ * 2) Few people would run a 32-bit kernel on a machine that supports
+ *    recoverable errors because they have too much memory to boot 32-bit.
+ */
+static inline void mce_unmap_kpfn(unsigned long pfn) {}
+#define mce_unmap_kpfn mce_unmap_kpfn
+#endif
+
 #endif /* __X86_MCE_INTERNAL_H__ */
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 3a8e88a611eb..466f47301334 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -56,6 +56,9 @@
 
 static DEFINE_MUTEX(mce_log_mutex);
 
+/* sysfs synchronization */
+static DEFINE_MUTEX(mce_sysfs_mutex);
+
 #define CREATE_TRACE_POINTS
 #include <trace/events/mce.h>
 
@@ -105,6 +108,10 @@ static struct irq_work mce_irq_work;
 
 static void (*quirk_no_way_out)(int bank, struct mce *m, struct pt_regs *regs);
 
+#ifndef mce_unmap_kpfn
+static void mce_unmap_kpfn(unsigned long pfn);
+#endif
+
 /*
  * CPU/chipset specific EDAC code can register a notifier call here to print
  * MCE errors in a human-readable form.
@@ -126,6 +133,8 @@ void mce_setup(struct mce *m)
 
         if (this_cpu_has(X86_FEATURE_INTEL_PPIN))
                 rdmsrl(MSR_PPIN, m->ppin);
+
+        m->microcode = boot_cpu_data.microcode;
 }
 
 DEFINE_PER_CPU(struct mce, injectm);
@@ -234,7 +243,7 @@ static void __print_mce(struct mce *m)
                         m->cs, m->ip);
 
                 if (m->cs == __KERNEL_CS)
-                        pr_cont("{%pS}", (void *)m->ip);
+                        pr_cont("{%pS}", (void *)(unsigned long)m->ip);
                 pr_cont("\n");
         }
 
@@ -258,7 +267,7 @@ static void __print_mce(struct mce *m)
          */
         pr_emerg(HW_ERR "PROCESSOR %u:%x TIME %llu SOCKET %u APIC %x microcode %x\n",
                 m->cpuvendor, m->cpuid, m->time, m->socketid, m->apicid,
-                cpu_data(m->extcpu).microcode);
+                m->microcode);
 }
 
 static void print_mce(struct mce *m)
@@ -590,7 +599,8 @@ static int srao_decode_notifier(struct notifier_block *nb, unsigned long val,
 
         if (mce_usable_address(mce) && (mce->severity == MCE_AO_SEVERITY)) {
                 pfn = mce->addr >> PAGE_SHIFT;
-                memory_failure(pfn, 0);
+                if (!memory_failure(pfn, 0))
+                        mce_unmap_kpfn(pfn);
         }
 
         return NOTIFY_OK;
@@ -1057,12 +1067,13 @@ static int do_memory_failure(struct mce *m)
         ret = memory_failure(m->addr >> PAGE_SHIFT, flags);
         if (ret)
                 pr_err("Memory error not recovered");
+        else
+                mce_unmap_kpfn(m->addr >> PAGE_SHIFT);
         return ret;
 }
 
-#if defined(arch_unmap_kpfn) && defined(CONFIG_MEMORY_FAILURE)
-
-void arch_unmap_kpfn(unsigned long pfn)
+#ifndef mce_unmap_kpfn
+static void mce_unmap_kpfn(unsigned long pfn)
 {
         unsigned long decoy_addr;
 
@@ -1073,7 +1084,7 @@ void arch_unmap_kpfn(unsigned long pfn)
          * We would like to just call:
          *      set_memory_np((unsigned long)pfn_to_kaddr(pfn), 1);
          * but doing that would radically increase the odds of a
-         * speculative access to the posion page because we'd have
+         * speculative access to the poison page because we'd have
          * the virtual address of the kernel 1:1 mapping sitting
          * around in registers.
          * Instead we get tricky.  We create a non-canonical address
@@ -1098,7 +1109,6 @@ void arch_unmap_kpfn(unsigned long pfn)
 
         if (set_memory_np(decoy_addr, 1))
                 pr_warn("Could not invalidate pfn=0x%lx from 1:1 map\n", pfn);
-
 }
 #endif
 
@@ -2081,6 +2091,7 @@ static ssize_t set_ignore_ce(struct device *s,
         if (kstrtou64(buf, 0, &new) < 0)
                 return -EINVAL;
 
+        mutex_lock(&mce_sysfs_mutex);
         if (mca_cfg.ignore_ce ^ !!new) {
                 if (new) {
                         /* disable ce features */
@@ -2093,6 +2104,8 @@ static ssize_t set_ignore_ce(struct device *s,
                         on_each_cpu(mce_enable_ce, (void *)1, 1);
                 }
         }
+        mutex_unlock(&mce_sysfs_mutex);
+
         return size;
 }
 
@@ -2105,6 +2118,7 @@ static ssize_t set_cmci_disabled(struct device *s,
         if (kstrtou64(buf, 0, &new) < 0)
                 return -EINVAL;
 
+        mutex_lock(&mce_sysfs_mutex);
         if (mca_cfg.cmci_disabled ^ !!new) {
                 if (new) {
                         /* disable cmci */
@@ -2116,6 +2130,8 @@ static ssize_t set_cmci_disabled(struct device *s,
                         on_each_cpu(mce_enable_ce, NULL, 1);
                 }
         }
+        mutex_unlock(&mce_sysfs_mutex);
+
         return size;
 }
 
@@ -2123,8 +2139,19 @@ static ssize_t store_int_with_restart(struct device *s,
                                       struct device_attribute *attr,
                                       const char *buf, size_t size)
 {
-        ssize_t ret = device_store_int(s, attr, buf, size);
+        unsigned long old_check_interval = check_interval;
+        ssize_t ret = device_store_ulong(s, attr, buf, size);
+
+        if (check_interval == old_check_interval)
+                return ret;
+
+        if (check_interval < 1)
+                check_interval = 1;
+
+        mutex_lock(&mce_sysfs_mutex);
         mce_restart();
+        mutex_unlock(&mce_sysfs_mutex);
+
         return ret;
 }
 
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index 330b8462d426..48179928ff38 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -339,7 +339,7 @@ int __init save_microcode_in_initrd_amd(unsigned int cpuid_1_eax)
                 return -EINVAL;
 
         ret = load_microcode_amd(true, x86_family(cpuid_1_eax), desc.data, desc.size);
-        if (ret != UCODE_OK)
+        if (ret > UCODE_UPDATED)
                 return -EINVAL;
 
         return 0;
@@ -498,7 +498,7 @@ static unsigned int verify_patch_size(u8 family, u32 patch_size,
         return patch_size;
 }
 
-static int apply_microcode_amd(int cpu)
+static enum ucode_state apply_microcode_amd(int cpu)
 {
         struct cpuinfo_x86 *c = &cpu_data(cpu);
         struct microcode_amd *mc_amd;
@@ -512,7 +512,7 @@ static int apply_microcode_amd(int cpu)
 
         p = find_patch(cpu);
         if (!p)
-                return 0;
+                return UCODE_NFOUND;
 
         mc_amd  = p->data;
         uci->mc = p->data;
@@ -523,13 +523,13 @@ static int apply_microcode_amd(int cpu)
         if (rev >= mc_amd->hdr.patch_id) {
                 c->microcode = rev;
                 uci->cpu_sig.rev = rev;
-                return 0;
+                return UCODE_OK;
         }
 
         if (__apply_microcode_amd(mc_amd)) {
                 pr_err("CPU%d: update failed for patch_level=0x%08x\n",
                         cpu, mc_amd->hdr.patch_id);
-                return -1;
+                return UCODE_ERROR;
         }
         pr_info("CPU%d: new patch_level=0x%08x\n", cpu,
                 mc_amd->hdr.patch_id);
@@ -537,7 +537,7 @@ static int apply_microcode_amd(int cpu)
         uci->cpu_sig.rev = mc_amd->hdr.patch_id;
         c->microcode = mc_amd->hdr.patch_id;
 
-        return 0;
+        return UCODE_UPDATED;
 }
 
 static int install_equiv_cpu_table(const u8 *buf)
@@ -683,27 +683,35 @@ static enum ucode_state __load_microcode_amd(u8 family, const u8 *data,
 static enum ucode_state
 load_microcode_amd(bool save, u8 family, const u8 *data, size_t size)
 {
+        struct ucode_patch *p;
         enum ucode_state ret;
 
         /* free old equiv table */
         free_equiv_cpu_table();
 
         ret = __load_microcode_amd(family, data, size);
-
-        if (ret != UCODE_OK)
+        if (ret != UCODE_OK) {
                 cleanup();
+                return ret;
+        }
 
-#ifdef CONFIG_X86_32
-        /* save BSP's matching patch for early load */
-        if (save) {
-                struct ucode_patch *p = find_patch(0);
-                if (p) {
-                        memset(amd_ucode_patch, 0, PATCH_MAX_SIZE);
-                        memcpy(amd_ucode_patch, p->data, min_t(u32, ksize(p->data),
-                                                               PATCH_MAX_SIZE));
-                }
+        p = find_patch(0);
+        if (!p) {
+                return ret;
+        } else {
+                if (boot_cpu_data.microcode == p->patch_id)
+                        return ret;
+
+                ret = UCODE_NEW;
         }
-#endif
+
+        /* save BSP's matching patch for early load */
+        if (!save)
+                return ret;
+
+        memset(amd_ucode_patch, 0, PATCH_MAX_SIZE);
+        memcpy(amd_ucode_patch, p->data, min_t(u32, ksize(p->data), PATCH_MAX_SIZE));
+
         return ret;
 }
 
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
index 319dd65f98a2..10c4fc2c91f8 100644
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -22,13 +22,16 @@
 #define pr_fmt(fmt) "microcode: " fmt
 
 #include <linux/platform_device.h>
+#include <linux/stop_machine.h>
 #include <linux/syscore_ops.h>
 #include <linux/miscdevice.h>
 #include <linux/capability.h>
 #include <linux/firmware.h>
 #include <linux/kernel.h>
+#include <linux/delay.h>
 #include <linux/mutex.h>
 #include <linux/cpu.h>
+#include <linux/nmi.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
 
@@ -64,6 +67,11 @@ LIST_HEAD(microcode_cache);
  */
 static DEFINE_MUTEX(microcode_mutex);
 
+/*
+ * Serialize late loading so that CPUs get updated one-by-one.
+ */
+static DEFINE_SPINLOCK(update_lock);
+
 struct ucode_cpu_info           ucode_cpu_info[NR_CPUS];
 
 struct cpu_info_ctx {
@@ -373,26 +381,23 @@ static int collect_cpu_info(int cpu)
         return ret;
 }
 
-struct apply_microcode_ctx {
-        int err;
-};
-
 static void apply_microcode_local(void *arg)
 {
-        struct apply_microcode_ctx *ctx = arg;
+        enum ucode_state *err = arg;
 
-        ctx->err = microcode_ops->apply_microcode(smp_processor_id());
+        *err = microcode_ops->apply_microcode(smp_processor_id());
 }
 
 static int apply_microcode_on_target(int cpu)
 {
-        struct apply_microcode_ctx ctx = { .err = 0 };
+        enum ucode_state err;
         int ret;
 
-        ret = smp_call_function_single(cpu, apply_microcode_local, &ctx, 1);
-        if (!ret)
-                ret = ctx.err;
-
+        ret = smp_call_function_single(cpu, apply_microcode_local, &err, 1);
+        if (!ret) {
+                if (err == UCODE_ERROR)
+                        ret = 1;
+        }
         return ret;
 }
 
@@ -489,31 +494,124 @@ static void __exit microcode_dev_exit(void)
 /* fake device for request_firmware */
 static struct platform_device   *microcode_pdev;
 
-static int reload_for_cpu(int cpu)
+/*
+ * Late loading dance. Why the heavy-handed stomp_machine effort?
+ *
+ * - HT siblings must be idle and not execute other code while the other sibling
+ *   is loading microcode in order to avoid any negative interactions caused by
+ *   the loading.
+ *
+ * - In addition, microcode update on the cores must be serialized until this
+ *   requirement can be relaxed in the future. Right now, this is conservative
+ *   and good.
+ */
+#define SPINUNIT 100 /* 100 nsec */
+
+static int check_online_cpus(void)
 {
-        struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
-        enum ucode_state ustate;
-        int err = 0;
+        if (num_online_cpus() == num_present_cpus())
+                return 0;
 
-        if (!uci->valid)
-                return err;
+        pr_err("Not all CPUs online, aborting microcode update.\n");
 
-        ustate = microcode_ops->request_microcode_fw(cpu, &microcode_pdev->dev, true);
-        if (ustate == UCODE_OK)
-                apply_microcode_on_target(cpu);
-        else
-                if (ustate == UCODE_ERROR)
-                        err = -EINVAL;
-        return err;
+        return -EINVAL;
+}
+
+static atomic_t late_cpus_in;
+static atomic_t late_cpus_out;
+
+static int __wait_for_cpus(atomic_t *t, long long timeout)
+{
+        int all_cpus = num_online_cpus();
+
+        atomic_inc(t);
+
+        while (atomic_read(t) < all_cpus) {
+                if (timeout < SPINUNIT) {
+                        pr_err("Timeout while waiting for CPUs rendezvous, remaining: %d\n",
+                                all_cpus - atomic_read(t));
+                        return 1;
+                }
+
+                ndelay(SPINUNIT);
+                timeout -= SPINUNIT;
+
+                touch_nmi_watchdog();
+        }
+        return 0;
+}
+
+/*
+ * Returns:
+ * < 0 - on error
+ *   0 - no update done
+ *   1 - microcode was updated
+ */
+static int __reload_late(void *info)
+{
+        int cpu = smp_processor_id();
+        enum ucode_state err;
+        int ret = 0;
+
+        /*
+         * Wait for all CPUs to arrive. A load will not be attempted unless all
+         * CPUs show up.
+         * */
+        if (__wait_for_cpus(&late_cpus_in, NSEC_PER_SEC))
+                return -1;
+
+        spin_lock(&update_lock);
+        apply_microcode_local(&err);
+        spin_unlock(&update_lock);
+
+        if (err > UCODE_NFOUND) {
+                pr_warn("Error reloading microcode on CPU %d\n", cpu);
+                return -1;
+        /* siblings return UCODE_OK because their engine got updated already */
+        } else if (err == UCODE_UPDATED || err == UCODE_OK) {
+                ret = 1;
+        } else {
+                return ret;
+        }
+
+        /*
+         * Increase the wait timeout to a safe value here since we're
+         * serializing the microcode update and that could take a while on a
+         * large number of CPUs. And that is fine as the *actual* timeout will
+         * be determined by the last CPU finished updating and thus cut short.
+         */
+        if (__wait_for_cpus(&late_cpus_out, NSEC_PER_SEC * num_online_cpus()))
+                panic("Timeout during microcode update!\n");
+
+        return ret;
+}
+
+/*
+ * Reload microcode late on all CPUs. Wait for a sec until they
+ * all gather together.
+ */
+static int microcode_reload_late(void)
+{
+        int ret;
+
+        atomic_set(&late_cpus_in,  0);
+        atomic_set(&late_cpus_out, 0);
+
+        ret = stop_machine_cpuslocked(__reload_late, NULL, cpu_online_mask);
+        if (ret > 0)
+                microcode_check();
+
+        return ret;
 }
 
 static ssize_t reload_store(struct device *dev,
                             struct device_attribute *attr,
                             const char *buf, size_t size)
 {
+        enum ucode_state tmp_ret = UCODE_OK;
+        int bsp = boot_cpu_data.cpu_index;
         unsigned long val;
-        int cpu;
-        ssize_t ret = 0, tmp_ret;
+        ssize_t ret = 0;
 
         ret = kstrtoul(buf, 0, &val);
         if (ret)
@@ -522,23 +620,24 @@ static ssize_t reload_store(struct device *dev,
         if (val != 1)
                 return size;
 
+        tmp_ret = microcode_ops->request_microcode_fw(bsp, &microcode_pdev->dev, true);
+        if (tmp_ret != UCODE_NEW)
+                return size;
+
         get_online_cpus();
-        mutex_lock(&microcode_mutex);
-        for_each_online_cpu(cpu) {
-                tmp_ret = reload_for_cpu(cpu);
-                if (tmp_ret != 0)
-                        pr_warn("Error reloading microcode on CPU %d\n", cpu);
 
-                /* save retval of the first encountered reload error */
-                if (!ret)
-                        ret = tmp_ret;
-        }
-        if (!ret)
-                perf_check_microcode();
+        ret = check_online_cpus();
+        if (ret)
+                goto put;
+
+        mutex_lock(&microcode_mutex);
+        ret = microcode_reload_late();
         mutex_unlock(&microcode_mutex);
+
+put:
         put_online_cpus();
 
-        if (!ret)
+        if (ret >= 0)
                 ret = size;
 
         return ret;
@@ -606,10 +705,8 @@ static enum ucode_state microcode_init_cpu(int cpu, bool refresh_fw)
         if (system_state != SYSTEM_RUNNING)
                 return UCODE_NFOUND;
 
-        ustate = microcode_ops->request_microcode_fw(cpu, &microcode_pdev->dev,
-                                                     refresh_fw);
-
-        if (ustate == UCODE_OK) {
+        ustate = microcode_ops->request_microcode_fw(cpu, &microcode_pdev->dev, refresh_fw);
+        if (ustate == UCODE_NEW) {
                 pr_debug("CPU%d updated upon init\n", cpu);
                 apply_microcode_on_target(cpu);
         }
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
index f7c55b0e753a..32b8e5724f96 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -589,6 +589,23 @@ static int apply_microcode_early(struct ucode_cpu_info *uci, bool early)
         if (!mc)
                 return 0;
 
+        /*
+         * Save us the MSR write below - which is a particular expensive
+         * operation - when the other hyperthread has updated the microcode
+         * already.
+         */
+        rev = intel_get_microcode_revision();
+        if (rev >= mc->hdr.rev) {
+                uci->cpu_sig.rev = rev;
+                return UCODE_OK;
+        }
+
+        /*
+         * Writeback and invalidate caches before updating microcode to avoid
+         * internal issues depending on what the microcode is updating.
+         */
+        native_wbinvd();
+
         /* write microcode via MSR 0x79 */
         native_wrmsrl(MSR_IA32_UCODE_WRITE, (unsigned long)mc->bits);
 
@@ -772,27 +789,44 @@ static int collect_cpu_info(int cpu_num, struct cpu_signature *csig)
         return 0;
 }
 
-static int apply_microcode_intel(int cpu)
+static enum ucode_state apply_microcode_intel(int cpu)
 {
+        struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
         struct microcode_intel *mc;
-        struct ucode_cpu_info *uci;
-        struct cpuinfo_x86 *c;
         static int prev_rev;
         u32 rev;
 
         /* We should bind the task to the CPU */
         if (WARN_ON(raw_smp_processor_id() != cpu))
-                return -1;
+                return UCODE_ERROR;
 
-        uci = ucode_cpu_info + cpu;
-        mc = uci->mc;
+        /* Look for a newer patch in our cache: */
+        mc = find_patch(uci);
         if (!mc) {
-                /* Look for a newer patch in our cache: */
-                mc = find_patch(uci);
+                mc = uci->mc;
                 if (!mc)
-                        return 0;
+                        return UCODE_NFOUND;
         }
 
+        /*
+         * Save us the MSR write below - which is a particular expensive
+         * operation - when the other hyperthread has updated the microcode
+         * already.
+         */
+        rev = intel_get_microcode_revision();
+        if (rev >= mc->hdr.rev) {
+                uci->cpu_sig.rev = rev;
+                c->microcode = rev;
+                return UCODE_OK;
+        }
+
+        /*
+         * Writeback and invalidate caches before updating microcode to avoid
+         * internal issues depending on what the microcode is updating.
+         */
+        native_wbinvd();
+
         /* write microcode via MSR 0x79 */
         wrmsrl(MSR_IA32_UCODE_WRITE, (unsigned long)mc->bits);
 
@@ -801,7 +835,7 @@ static int apply_microcode_intel(int cpu)
         if (rev != mc->hdr.rev) {
                 pr_err("CPU%d update to revision 0x%x failed\n",
                        cpu, mc->hdr.rev);
-                return -1;
+                return UCODE_ERROR;
         }
 
         if (rev != prev_rev) {
@@ -813,12 +847,10 @@ static int apply_microcode_intel(int cpu)
                 prev_rev = rev;
         }
 
-        c = &cpu_data(cpu);
-
         uci->cpu_sig.rev = rev;
         c->microcode = rev;
 
-        return 0;
+        return UCODE_UPDATED;
 }
 
 static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
@@ -830,6 +862,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
         unsigned int leftover = size;
         unsigned int curr_mc_size = 0, new_mc_size = 0;
         unsigned int csig, cpf;
+        enum ucode_state ret = UCODE_OK;
 
         while (leftover) {
                 struct microcode_header_intel mc_header;
@@ -871,6 +904,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
                         new_mc  = mc;
                         new_mc_size = mc_size;
                         mc = NULL;      /* trigger new vmalloc */
+                        ret = UCODE_NEW;
                 }
 
                 ucode_ptr += mc_size;
@@ -900,7 +934,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
         pr_debug("CPU%d found a matching microcode update with version 0x%x (current=0x%x)\n",
                  cpu, new_rev, uci->cpu_sig.rev);
 
-        return UCODE_OK;
+        return ret;
 }
 
 static int get_ucode_fw(void *to, const void *from, size_t n)
@@ -921,7 +955,7 @@ static bool is_blacklisted(unsigned int cpu)
          */
         if (c->x86 == 6 &&
             c->x86_model == INTEL_FAM6_BROADWELL_X &&
-            c->x86_mask == 0x01 &&
+            c->x86_stepping == 0x01 &&
             llc_size_per_core > 2621440 &&
             c->microcode < 0x0b000021) {
                 pr_err_once("Erratum BDF90: late loading with revision < 0x0b000021 (0x%x) disabled.\n", c->microcode);
@@ -944,7 +978,7 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device,
                 return UCODE_NFOUND;
 
         sprintf(name, "intel-ucode/%02x-%02x-%02x",
-                c->x86, c->x86_model, c->x86_mask);
+                c->x86, c->x86_model, c->x86_stepping);
 
         if (request_firmware_direct(&firmware, name, device)) {
                 pr_debug("data file %s load failed\n", name);
@@ -982,7 +1016,7 @@ static struct microcode_ops microcode_intel_ops = {
 
 static int __init calc_llc_size_per_core(struct cpuinfo_x86 *c)
 {
-        u64 llc_size = c->x86_cache_size * 1024;
+        u64 llc_size = c->x86_cache_size * 1024ULL;
 
         do_div(llc_size, c->x86_max_cores);
 
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index fdc55215d44d..e12ee86906c6 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -859,7 +859,7 @@ int generic_validate_add_page(unsigned long base, unsigned long size,
          */
         if (is_cpu(INTEL) && boot_cpu_data.x86 == 6 &&
             boot_cpu_data.x86_model == 1 &&
-            boot_cpu_data.x86_mask <= 7) {
+            boot_cpu_data.x86_stepping <= 7) {
                 if (base & ((1 << (22 - PAGE_SHIFT)) - 1)) {
                         pr_warn("mtrr: base(0x%lx000) is not 4 MiB aligned\n", base);
                         return -EINVAL;
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 40d5a8a75212..7468de429087 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -711,8 +711,8 @@ void __init mtrr_bp_init(void)
                         if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
                             boot_cpu_data.x86 == 0xF &&
                             boot_cpu_data.x86_model == 0x3 &&
-                            (boot_cpu_data.x86_mask == 0x3 ||
-                             boot_cpu_data.x86_mask == 0x4))
+                            (boot_cpu_data.x86_stepping == 0x3 ||
+                             boot_cpu_data.x86_stepping == 0x4))
                                 phys_addr = 36;
 
                         size_or_mask = SIZE_OR_MASK_BITS(phys_addr);
diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index e7ecedafa1c8..2c8522a39ed5 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -72,8 +72,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                    c->x86_model,
                    c->x86_model_id[0] ? c->x86_model_id : "unknown");
 
-        if (c->x86_mask || c->cpuid_level >= 0)
-                seq_printf(m, "stepping\t: %d\n", c->x86_mask);
+        if (c->x86_stepping || c->cpuid_level >= 0)
+                seq_printf(m, "stepping\t: %d\n", c->x86_stepping);
         else
                 seq_puts(m, "stepping\t: unknown\n");
         if (c->microcode)
@@ -91,8 +91,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
         }
 
         /* Cache size */
-        if (c->x86_cache_size >= 0)
-                seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
+        if (c->x86_cache_size)
+                seq_printf(m, "cache size\t: %u KB\n", c->x86_cache_size);
 
         show_cpuinfo_core(m, c, cpu);
         show_cpuinfo_misc(m, c);
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index c29020907886..b59e4fb40fd9 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -37,7 +37,7 @@
 #define X86             new_cpu_data+CPUINFO_x86
 #define X86_VENDOR      new_cpu_data+CPUINFO_x86_vendor
 #define X86_MODEL       new_cpu_data+CPUINFO_x86_model
-#define X86_MASK        new_cpu_data+CPUINFO_x86_mask
+#define X86_STEPPING    new_cpu_data+CPUINFO_x86_stepping
 #define X86_HARD_MATH   new_cpu_data+CPUINFO_hard_math
 #define X86_CPUID       new_cpu_data+CPUINFO_cpuid_level
 #define X86_CAPABILITY  new_cpu_data+CPUINFO_x86_capability
@@ -332,7 +332,7 @@ ENTRY(startup_32_smp)
         shrb $4,%al
         movb %al,X86_MODEL
         andb $0x0f,%cl          # mask mask revision
-        movb %cl,X86_MASK
+        movb %cl,X86_STEPPING
         movl %edx,X86_CAPABILITY
 
 .Lis486:
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 04a625f0fcda..0f545b3cf926 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -23,6 +23,7 @@
 #include <asm/nops.h>
 #include "../entry/calling.h"
 #include <asm/export.h>
+#include <asm/nospec-branch.h>
 
 #ifdef CONFIG_PARAVIRT
 #include <asm/asm-offsets.h>
@@ -134,6 +135,7 @@ ENTRY(secondary_startup_64)
 
         /* Ensure I am executing from virtual addresses */
         movq    $1f, %rax
+        ANNOTATE_RETPOLINE_SAFE
         jmp     *%rax
 1:
         UNWIND_HINT_EMPTY
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c
index 56d99be3706a..50bee5fe1140 100644
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -160,7 +160,6 @@ static const __initconst struct idt_data early_pf_idts[] = {
  */
 static const __initconst struct idt_data dbg_idts[] = {
         INTG(X86_TRAP_DB,       debug),
-        INTG(X86_TRAP_BP,       int3),
 };
 #endif
 
@@ -183,7 +182,6 @@ gate_desc debug_idt_table[IDT_ENTRIES] __page_aligned_bss;
 static const __initconst struct idt_data ist_idts[] = {
         ISTG(X86_TRAP_DB,       debug,          DEBUG_STACK),
         ISTG(X86_TRAP_NMI,      nmi,            NMI_STACK),
-        SISTG(X86_TRAP_BP,      int3,           DEBUG_STACK),
         ISTG(X86_TRAP_DF,       double_fault,   DOUBLEFAULT_STACK),
 #ifdef CONFIG_X86_MCE
         ISTG(X86_TRAP_MC,       &machine_check, MCE_STACK),
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index 2f723301eb58..38deafebb21b 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -23,7 +23,7 @@
 /*
  * this changes the io permissions bitmap in the current task.
  */
-asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
+SYSCALL_DEFINE3(ioperm, unsigned long, from, unsigned long, num, int, turn_on)
 {
         struct thread_struct *t = &current->thread;
         struct tss_struct *tss;
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index bd36f3c33cd0..0715f827607c 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -1168,10 +1168,18 @@ NOKPROBE_SYMBOL(longjmp_break_handler);
 
 bool arch_within_kprobe_blacklist(unsigned long addr)
 {
+        bool is_in_entry_trampoline_section = false;
+
+#ifdef CONFIG_X86_64
+        is_in_entry_trampoline_section =
+                (addr >= (unsigned long)__entry_trampoline_start &&
+                 addr < (unsigned long)__entry_trampoline_end);
+#endif
         return  (addr >= (unsigned long)__kprobes_text_start &&
                  addr < (unsigned long)__kprobes_text_end) ||
                 (addr >= (unsigned long)__entry_text_start &&
-                 addr < (unsigned long)__entry_text_end);
+                 addr < (unsigned long)__entry_text_end) ||
+                is_in_entry_trampoline_section;
 }
 
 int __init arch_init_kprobes(void)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 4e37d1a851a6..bc1a27280c4b 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -49,7 +49,7 @@
 
 static int kvmapf = 1;
 
-static int parse_no_kvmapf(char *arg)
+static int __init parse_no_kvmapf(char *arg)
 {
         kvmapf = 0;
         return 0;
@@ -58,7 +58,7 @@ static int parse_no_kvmapf(char *arg)
 early_param("no-kvmapf", parse_no_kvmapf);
 
 static int steal_acc = 1;
-static int parse_no_stealacc(char *arg)
+static int __init parse_no_stealacc(char *arg)
 {
         steal_acc = 0;
         return 0;
@@ -67,7 +67,7 @@ static int parse_no_stealacc(char *arg)
 early_param("no-steal-acc", parse_no_stealacc);
 
 static int kvmclock_vsyscall = 1;
-static int parse_no_kvmclock_vsyscall(char *arg)
+static int __init parse_no_kvmclock_vsyscall(char *arg)
 {
         kvmclock_vsyscall = 0;
         return 0;
@@ -341,10 +341,10 @@ static void kvm_guest_cpu_init(void)
 #endif
                 pa |= KVM_ASYNC_PF_ENABLED;
 
-                /* Async page fault support for L1 hypervisor is optional */
-                if (wrmsr_safe(MSR_KVM_ASYNC_PF_EN,
-                        (pa | KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT) & 0xffffffff, pa >> 32) < 0)
-                        wrmsrl(MSR_KVM_ASYNC_PF_EN, pa);
+                if (kvm_para_has_feature(KVM_FEATURE_ASYNC_PF_VMEXIT))
+                        pa |= KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT;
+
+                wrmsrl(MSR_KVM_ASYNC_PF_EN, pa);
                 __this_cpu_write(apf_reason.enabled, 1);
                 printk(KERN_INFO"KVM setup async PF for cpu %d\n",
                        smp_processor_id());
@@ -545,7 +545,8 @@ static void __init kvm_guest_init(void)
                 pv_time_ops.steal_clock = kvm_steal_clock;
         }
 
-        if (kvm_para_has_feature(KVM_FEATURE_PV_TLB_FLUSH))
+        if (kvm_para_has_feature(KVM_FEATURE_PV_TLB_FLUSH) &&
+            !kvm_para_has_feature(KVM_FEATURE_STEAL_TIME))
                 pv_mmu_ops.flush_tlb_others = kvm_flush_tlb_others;
 
         if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
@@ -633,7 +634,8 @@ static __init int kvm_setup_pv_tlb_flush(void)
 {
         int cpu;
 
-        if (kvm_para_has_feature(KVM_FEATURE_PV_TLB_FLUSH)) {
+        if (kvm_para_has_feature(KVM_FEATURE_PV_TLB_FLUSH) &&
+            !kvm_para_has_feature(KVM_FEATURE_STEAL_TIME)) {
                 for_each_possible_cpu(cpu) {
                         zalloc_cpumask_var_node(per_cpu_ptr(&__pv_tlb_mask, cpu),
                                 GFP_KERNEL, cpu_to_node(cpu));
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 1f790cf9d38f..3b7427aa7d85 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -542,6 +542,7 @@ int arch_kexec_apply_relocations_add(const Elf64_Ehdr *ehdr,
                                 goto overflow;
                         break;
                 case R_X86_64_PC32:
+                case R_X86_64_PLT32:
                         value -= (u64)address;
                         *(u32 *)location = value;
                         break;
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index da0c160e5589..f58336af095c 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -191,6 +191,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
                                 goto overflow;
                         break;
                 case R_X86_64_PC32:
+                case R_X86_64_PLT32:
                         if (*(u32 *)loc != 0)
                                 goto invalid_relocation;
                         val -= (u64)loc;
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 27d0a1712663..f1c5eb99d445 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -410,7 +410,7 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type)
         processor.apicver = mpc_default_type > 4 ? 0x10 : 0x01;
         processor.cpuflag = CPU_ENABLED;
         processor.cpufeature = (boot_cpu_data.x86 << 8) |
-            (boot_cpu_data.x86_model << 4) | boot_cpu_data.x86_mask;
+            (boot_cpu_data.x86_model << 4) | boot_cpu_data.x86_stepping;
         processor.featureflag = boot_cpu_data.x86_capability[CPUID_1_EDX];
         processor.reserved[0] = 0;
         processor.reserved[1] = 0;
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 041096bdef86..99dc79e76bdc 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -200,9 +200,9 @@ static void native_flush_tlb_global(void)
         __native_flush_tlb_global();
 }
 
-static void native_flush_tlb_single(unsigned long addr)
+static void native_flush_tlb_one_user(unsigned long addr)
 {
-        __native_flush_tlb_single(addr);
+        __native_flush_tlb_one_user(addr);
 }
 
 struct static_key paravirt_steal_enabled;
@@ -401,7 +401,7 @@ struct pv_mmu_ops pv_mmu_ops __ro_after_init = {
 
         .flush_tlb_user = native_flush_tlb,
         .flush_tlb_kernel = native_flush_tlb_global,
-        .flush_tlb_single = native_flush_tlb_single,
+        .flush_tlb_one_user = native_flush_tlb_one_user,
         .flush_tlb_others = native_flush_tlb_others,
 
         .pgd_alloc = __paravirt_pgd_alloc,
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index 618285e475c6..ac7ea3a8242f 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -37,7 +37,6 @@ static dma_addr_t nommu_map_page(struct device *dev, struct page *page,
         WARN_ON(size == 0);
         if (!check_addr("map_single", dev, bus, size))
                 return NOMMU_MAPPING_ERROR;
-        flush_write_buffers();
         return bus;
 }
 
@@ -72,25 +71,9 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
                         return 0;
                 s->dma_length = s->length;
         }
-        flush_write_buffers();
         return nents;
 }
 
-static void nommu_sync_single_for_device(struct device *dev,
-                        dma_addr_t addr, size_t size,
-                        enum dma_data_direction dir)
-{
-        flush_write_buffers();
-}
-
-
-static void nommu_sync_sg_for_device(struct device *dev,
-                        struct scatterlist *sg, int nelems,
-                        enum dma_data_direction dir)
-{
-        flush_write_buffers();
-}
-
 static int nommu_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
         return dma_addr == NOMMU_MAPPING_ERROR;
@@ -101,8 +84,6 @@ const struct dma_map_ops nommu_dma_ops = {
         .free                   = dma_generic_free_coherent,
         .map_sg                 = nommu_map_sg,
         .map_page               = nommu_map_page,
-        .sync_single_for_device = nommu_sync_single_for_device,
-        .sync_sg_for_device     = nommu_sync_sg_for_device,
         .is_phys                = 1,
         .mapping_error          = nommu_mapping_error,
         .dma_supported          = x86_dma_supported,
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 1ae67e982af7..4c616be28506 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1204,20 +1204,13 @@ void __init setup_arch(char **cmdline_p)
 
         kasan_init();
 
-#ifdef CONFIG_X86_32
-        /* sync back kernel address range */
-        clone_pgd_range(initial_page_table + KERNEL_PGD_BOUNDARY,
-                        swapper_pg_dir     + KERNEL_PGD_BOUNDARY,
-                        KERNEL_PGD_PTRS);
-
         /*
-         * sync back low identity map too.  It is used for example
-         * in the 32-bit EFI stub.
+         * Sync back kernel address range.
+         *
+         * FIXME: Can the later sync in setup_cpu_entry_areas() replace
+         * this call?
          */
-        clone_pgd_range(initial_page_table,
-                        swapper_pg_dir     + KERNEL_PGD_BOUNDARY,
-                        min(KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY));
-#endif
+        sync_initial_page_table();
 
         tboot_probe();
 
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 497aa766fab3..ea554f812ee1 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -287,24 +287,15 @@ void __init setup_per_cpu_areas(void)
         /* Setup cpu initialized, callin, callout masks */
         setup_cpu_local_masks();
 
-#ifdef CONFIG_X86_32
         /*
          * Sync back kernel address range again.  We already did this in
          * setup_arch(), but percpu data also needs to be available in
          * the smpboot asm.  We can't reliably pick up percpu mappings
          * using vmalloc_fault(), because exception dispatch needs
          * percpu data.
+         *
+         * FIXME: Can the later sync in setup_cpu_entry_areas() replace
+         * this call?
          */
-        clone_pgd_range(initial_page_table + KERNEL_PGD_BOUNDARY,
-                        swapper_pg_dir     + KERNEL_PGD_BOUNDARY,
-                        KERNEL_PGD_PTRS);
-
-        /*
-         * sync back low identity map too.  It is used for example
-         * in the 32-bit EFI stub.
-         */
-        clone_pgd_range(initial_page_table,
-                        swapper_pg_dir     + KERNEL_PGD_BOUNDARY,
-                        min(KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY));
-#endif
+        sync_initial_page_table();
 }
diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c
index ac057f9b0763..0d930d8987cc 100644
--- a/arch/x86/kernel/signal_compat.c
+++ b/arch/x86/kernel/signal_compat.c
@@ -43,6 +43,13 @@ static inline void signal_compat_build_tests(void)
         BUILD_BUG_ON(offsetof(compat_siginfo_t, _sifields) != 3 * sizeof(int));
 #define CHECK_CSI_OFFSET(name)    BUILD_BUG_ON(_sifields_offset != offsetof(compat_siginfo_t, _sifields.name))
 
+        BUILD_BUG_ON(offsetof(siginfo_t, si_signo) != 0);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_errno) != 4);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_code)  != 8);
+
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_signo) != 0);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_errno) != 4);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_code)  != 8);
          /*
          * Ensure that the size of each si_field never changes.
          * If it does, it is a sign that the
@@ -63,36 +70,94 @@ static inline void signal_compat_build_tests(void)
         CHECK_CSI_SIZE  (_kill, 2*sizeof(int));
         CHECK_SI_SIZE   (_kill, 2*sizeof(int));
 
+        BUILD_BUG_ON(offsetof(siginfo_t, si_pid) != 0x10);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_uid) != 0x14);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_pid) != 0xC);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_uid) != 0x10);
+
         CHECK_CSI_OFFSET(_timer);
         CHECK_CSI_SIZE  (_timer, 3*sizeof(int));
         CHECK_SI_SIZE   (_timer, 6*sizeof(int));
 
+        BUILD_BUG_ON(offsetof(siginfo_t, si_tid)     != 0x10);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_overrun) != 0x14);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_value)   != 0x18);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_tid)     != 0x0C);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_overrun) != 0x10);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_value)   != 0x14);
+
         CHECK_CSI_OFFSET(_rt);
         CHECK_CSI_SIZE  (_rt, 3*sizeof(int));
         CHECK_SI_SIZE   (_rt, 4*sizeof(int));
 
+        BUILD_BUG_ON(offsetof(siginfo_t, si_pid)   != 0x10);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_uid)   != 0x14);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_value) != 0x18);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_pid)   != 0x0C);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_uid)   != 0x10);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_value) != 0x14);
+
         CHECK_CSI_OFFSET(_sigchld);
         CHECK_CSI_SIZE  (_sigchld, 5*sizeof(int));
         CHECK_SI_SIZE   (_sigchld, 8*sizeof(int));
 
+        BUILD_BUG_ON(offsetof(siginfo_t, si_pid)    != 0x10);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_uid)    != 0x14);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_status) != 0x18);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_utime)  != 0x20);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_stime)  != 0x28);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_pid)    != 0x0C);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_uid)    != 0x10);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_status) != 0x14);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_utime)  != 0x18);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_stime)  != 0x1C);
+
 #ifdef CONFIG_X86_X32_ABI
         CHECK_CSI_OFFSET(_sigchld_x32);
         CHECK_CSI_SIZE  (_sigchld_x32, 7*sizeof(int));
         /* no _sigchld_x32 in the generic siginfo_t */
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, _sifields._sigchld_x32._utime)  != 0x18);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, _sifields._sigchld_x32._stime)  != 0x20);
 #endif
 
         CHECK_CSI_OFFSET(_sigfault);
         CHECK_CSI_SIZE  (_sigfault, 4*sizeof(int));
         CHECK_SI_SIZE   (_sigfault, 8*sizeof(int));
 
+        BUILD_BUG_ON(offsetof(siginfo_t, si_addr) != 0x10);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_addr) != 0x0C);
+
+        BUILD_BUG_ON(offsetof(siginfo_t, si_addr_lsb) != 0x18);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_addr_lsb) != 0x10);
+
+        BUILD_BUG_ON(offsetof(siginfo_t, si_lower) != 0x20);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_upper) != 0x28);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_lower) != 0x14);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_upper) != 0x18);
+
+        BUILD_BUG_ON(offsetof(siginfo_t, si_pkey) != 0x20);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_pkey) != 0x14);
+
         CHECK_CSI_OFFSET(_sigpoll);
         CHECK_CSI_SIZE  (_sigpoll, 2*sizeof(int));
         CHECK_SI_SIZE   (_sigpoll, 4*sizeof(int));
 
+        BUILD_BUG_ON(offsetof(siginfo_t, si_band)   != 0x10);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_fd)     != 0x18);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_band) != 0x0C);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_fd)   != 0x10);
+
         CHECK_CSI_OFFSET(_sigsys);
         CHECK_CSI_SIZE  (_sigsys, 3*sizeof(int));
         CHECK_SI_SIZE   (_sigsys, 4*sizeof(int));
 
+        BUILD_BUG_ON(offsetof(siginfo_t, si_call_addr) != 0x10);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_syscall)   != 0x18);
+        BUILD_BUG_ON(offsetof(siginfo_t, si_arch)      != 0x1C);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_call_addr) != 0x0C);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_syscall)   != 0x10);
+        BUILD_BUG_ON(offsetof(compat_siginfo_t, si_arch)      != 0x14);
+
         /* any new si_fields should be added here */
 }
 
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 6f27facbaa9b..ff99e2b6fc54 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1281,11 +1281,10 @@ void __init native_smp_prepare_boot_cpu(void)
         cpu_set_state_online(me);
 }
 
-void __init native_smp_cpus_done(unsigned int max_cpus)
+void __init calculate_max_logical_packages(void)
 {
         int ncpus;
 
-        pr_debug("Boot done\n");
         /*
          * Today neither Intel nor AMD support heterogenous systems so
          * extrapolate the boot cpu's data to all packages.
@@ -1293,6 +1292,13 @@ void __init native_smp_cpus_done(unsigned int max_cpus)
         ncpus = cpu_data(0).booted_cores * topology_max_smt_threads();
         __max_logical_packages = DIV_ROUND_UP(nr_cpu_ids, ncpus);
         pr_info("Max logical packages: %u\n", __max_logical_packages);
+}
+
+void __init native_smp_cpus_done(unsigned int max_cpus)
+{
+        pr_debug("Boot done\n");
+
+        calculate_max_logical_packages();
 
         if (x86_has_numa_in_package)
                 set_sched_topology(x86_numa_in_package_topology);
@@ -1430,8 +1436,8 @@ static void remove_siblinginfo(int cpu)
         cpumask_clear(cpu_llc_shared_mask(cpu));
         cpumask_clear(topology_sibling_cpumask(cpu));
         cpumask_clear(topology_core_cpumask(cpu));
-        c->phys_proc_id = 0;
         c->cpu_core_id = 0;
+        c->booted_cores = 0;
         cpumask_clear_cpu(cpu, cpu_sibling_setup_mask);
         recompute_smt_state();
 }
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 446c9ef8cfc3..03f3d7695dac 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -181,7 +181,7 @@ int fixup_bug(struct pt_regs *regs, int trapnr)
                 break;
 
         case BUG_TRAP_TYPE_WARN:
-                regs->ip += LEN_UD0;
+                regs->ip += LEN_UD2;
                 return 1;
         }
 
@@ -577,7 +577,6 @@ do_general_protection(struct pt_regs *regs, long error_code)
 }
 NOKPROBE_SYMBOL(do_general_protection);
 
-/* May run on IST stack. */
 dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code)
 {
 #ifdef CONFIG_DYNAMIC_FTRACE
@@ -592,6 +591,13 @@ dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code)
         if (poke_int3_handler(regs))
                 return;
 
+        /*
+         * Use ist_enter despite the fact that we don't use an IST stack.
+         * We can be called from a kprobe in non-CONTEXT_KERNEL kernel
+         * mode or even during context tracking state changes.
+         *
+         * This means that we can't schedule.  That's okay.
+         */
         ist_enter(regs);
         RCU_LOCKDEP_WARN(!rcu_is_watching(), "entry code didn't wake RCU");
 #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
@@ -609,15 +615,10 @@ dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code)
                         SIGTRAP) == NOTIFY_STOP)
                 goto exit;
 
-        /*
-         * Let others (NMI) know that the debug stack is in use
-         * as we may switch to the interrupt stack.
-         */
-        debug_stack_usage_inc();
         cond_local_irq_enable(regs);
         do_trap(X86_TRAP_BP, SIGTRAP, "int3", regs, error_code, NULL);
         cond_local_irq_disable(regs);
-        debug_stack_usage_dec();
+
 exit:
         ist_exit(regs);
 }
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index 1f9188f5357c..feb28fee6cea 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -5,7 +5,6 @@
 #include <asm/unwind.h>
 #include <asm/orc_types.h>
 #include <asm/orc_lookup.h>
-#include <asm/sections.h>
 
 #define orc_warn(fmt, ...) \
         printk_deferred_once(KERN_WARNING pr_fmt("WARNING: " fmt), ##__VA_ARGS__)
@@ -148,7 +147,7 @@ static struct orc_entry *orc_find(unsigned long ip)
         }
 
         /* vmlinux .init slow lookup: */
-        if (ip >= (unsigned long)_sinittext && ip < (unsigned long)_einittext)
+        if (init_kernel_text(ip))
                 return __orc_find(__start_orc_unwind_ip, __start_orc_unwind,
                                   __stop_orc_unwind_ip - __start_orc_unwind_ip, ip);
 
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 5edb27f1a2c4..9d0b5af7db91 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -727,7 +727,8 @@ void handle_vm86_fault(struct kernel_vm86_regs *regs, long error_code)
         return;
 
 check_vip:
-        if (VEFLAGS & X86_EFLAGS_VIP) {
+        if ((VEFLAGS & (X86_EFLAGS_VIP | X86_EFLAGS_VIF)) ==
+            (X86_EFLAGS_VIP | X86_EFLAGS_VIF)) {
                 save_v86_state(regs, VM86_STI);
                 return;
         }
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 9b138a06c1a4..b854ebf5851b 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -118,9 +118,11 @@ SECTIONS
 
 #ifdef CONFIG_X86_64
                 . = ALIGN(PAGE_SIZE);
+                VMLINUX_SYMBOL(__entry_trampoline_start) = .;
                 _entry_trampoline = .;
                 *(.entry_trampoline)
                 . = ALIGN(PAGE_SIZE);
+                VMLINUX_SYMBOL(__entry_trampoline_end) = .;
                 ASSERT(. - _entry_trampoline == PAGE_SIZE, "entry trampoline is too big");
 #endif
 
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index a0c5a69bc7c4..b671fc2d0422 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -607,7 +607,8 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
                              (1 << KVM_FEATURE_PV_EOI) |
                              (1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT) |
                              (1 << KVM_FEATURE_PV_UNHALT) |
-                             (1 << KVM_FEATURE_PV_TLB_FLUSH);
+                             (1 << KVM_FEATURE_PV_TLB_FLUSH) |
+                             (1 << KVM_FEATURE_ASYNC_PF_VMEXIT);
 
                 if (sched_info_on())
                         entry->eax |= (1 << KVM_FEATURE_STEAL_TIME);
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 924ac8ce9d50..391dda8d43b7 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -2002,14 +2002,13 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
 
 void kvm_lapic_reset(struct kvm_vcpu *vcpu, bool init_event)
 {
-        struct kvm_lapic *apic;
+        struct kvm_lapic *apic = vcpu->arch.apic;
         int i;
 
-        apic_debug("%s\n", __func__);
+        if (!apic)
+                return;
 
-        ASSERT(vcpu);
-        apic = vcpu->arch.apic;
-        ASSERT(apic != NULL);
+        apic_debug("%s\n", __func__);
 
         /* Stop the timer in case it's a reset to an active apic */
         hrtimer_cancel(&apic->lapic_timer.timer);
@@ -2165,7 +2164,6 @@ int kvm_create_lapic(struct kvm_vcpu *vcpu)
          */
         vcpu->arch.apic_base = MSR_IA32_APICBASE_ENABLE;
         static_key_slow_inc(&apic_sw_disabled.key); /* sw disabled at reset */
-        kvm_lapic_reset(vcpu, false);
         kvm_iodevice_init(&apic->dev, &apic_mmio_ops);
 
         return 0;
@@ -2569,7 +2567,6 @@ void kvm_apic_accept_events(struct kvm_vcpu *vcpu)
 
         pe = xchg(&apic->pending_events, 0);
         if (test_bit(KVM_APIC_INIT, &pe)) {
-                kvm_lapic_reset(vcpu, true);
                 kvm_vcpu_reset(vcpu, true);
                 if (kvm_vcpu_is_bsp(apic->vcpu))
                         vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 8eca1d04aeb8..763bb3bade63 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2770,8 +2770,10 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
         else
                 pte_access &= ~ACC_WRITE_MASK;
 
+        if (!kvm_is_mmio_pfn(pfn))
+                spte |= shadow_me_mask;
+
         spte |= (u64)pfn << PAGE_SHIFT;
-        spte |= shadow_me_mask;
 
         if (pte_access & ACC_WRITE_MASK) {
 
@@ -3029,7 +3031,7 @@ static int kvm_handle_bad_page(struct kvm_vcpu *vcpu, gfn_t gfn, kvm_pfn_t pfn)
                 return RET_PF_RETRY;
         }
 
-        return -EFAULT;
+        return RET_PF_EMULATE;
 }
 
 static void transparent_hugepage_adjust(struct kvm_vcpu *vcpu,
@@ -5080,7 +5082,7 @@ void kvm_mmu_uninit_vm(struct kvm *kvm)
 typedef bool (*slot_level_handler) (struct kvm *kvm, struct kvm_rmap_head *rmap_head);
 
 /* The caller should hold mmu-lock before calling this function. */
-static bool
+static __always_inline bool
 slot_handle_level_range(struct kvm *kvm, struct kvm_memory_slot *memslot,
                         slot_level_handler fn, int start_level, int end_level,
                         gfn_t start_gfn, gfn_t end_gfn, bool lock_flush_tlb)
@@ -5110,7 +5112,7 @@ slot_handle_level_range(struct kvm *kvm, struct kvm_memory_slot *memslot,
         return flush;
 }
 
-static bool
+static __always_inline bool
 slot_handle_level(struct kvm *kvm, struct kvm_memory_slot *memslot,
                   slot_level_handler fn, int start_level, int end_level,
                   bool lock_flush_tlb)
@@ -5121,7 +5123,7 @@ slot_handle_level(struct kvm *kvm, struct kvm_memory_slot *memslot,
                         lock_flush_tlb);
 }
 
-static bool
+static __always_inline bool
 slot_handle_all_level(struct kvm *kvm, struct kvm_memory_slot *memslot,
                       slot_level_handler fn, bool lock_flush_tlb)
 {
@@ -5129,7 +5131,7 @@ slot_handle_all_level(struct kvm *kvm, struct kvm_memory_slot *memslot,
                                  PT_MAX_HUGEPAGE_LEVEL, lock_flush_tlb);
 }
 
-static bool
+static __always_inline bool
 slot_handle_large_level(struct kvm *kvm, struct kvm_memory_slot *memslot,
                         slot_level_handler fn, bool lock_flush_tlb)
 {
@@ -5137,7 +5139,7 @@ slot_handle_large_level(struct kvm *kvm, struct kvm_memory_slot *memslot,
                                  PT_MAX_HUGEPAGE_LEVEL, lock_flush_tlb);
 }
 
-static bool
+static __always_inline bool
 slot_handle_leaf(struct kvm *kvm, struct kvm_memory_slot *memslot,
                  slot_level_handler fn, bool lock_flush_tlb)
 {
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index b3e488a74828..be9c839e2c89 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -49,6 +49,7 @@
 #include <asm/debugreg.h>
 #include <asm/kvm_para.h>
 #include <asm/irq_remapping.h>
+#include <asm/microcode.h>
 #include <asm/nospec-branch.h>
 
 #include <asm/virtext.h>
@@ -178,6 +179,8 @@ struct vcpu_svm {
         uint64_t sysenter_eip;
         uint64_t tsc_aux;
 
+        u64 msr_decfg;
+
         u64 next_rip;
 
         u64 host_user_msrs[NR_HOST_SAVE_USER_MSRS];
@@ -300,6 +303,8 @@ module_param(vgif, int, 0444);
 static int sev = IS_ENABLED(CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT);
 module_param(sev, int, 0444);
 
+static u8 rsm_ins_bytes[] = "\x0f\xaa";
+
 static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
 static void svm_flush_tlb(struct kvm_vcpu *vcpu, bool invalidate_gpa);
 static void svm_complete_interrupts(struct vcpu_svm *svm);
@@ -1383,6 +1388,7 @@ static void init_vmcb(struct vcpu_svm *svm)
         set_intercept(svm, INTERCEPT_SKINIT);
         set_intercept(svm, INTERCEPT_WBINVD);
         set_intercept(svm, INTERCEPT_XSETBV);
+        set_intercept(svm, INTERCEPT_RSM);
 
         if (!kvm_mwait_in_guest()) {
                 set_intercept(svm, INTERCEPT_MONITOR);
@@ -1902,6 +1908,7 @@ static void svm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
         u32 dummy;
         u32 eax = 1;
 
+        vcpu->arch.microcode_version = 0x01000065;
         svm->spec_ctrl = 0;
 
         if (!init_event) {
@@ -3699,6 +3706,12 @@ static int emulate_on_interception(struct vcpu_svm *svm)
         return emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE;
 }
 
+static int rsm_interception(struct vcpu_svm *svm)
+{
+        return x86_emulate_instruction(&svm->vcpu, 0, 0,
+                                       rsm_ins_bytes, 2) == EMULATE_DONE;
+}
+
 static int rdpmc_interception(struct vcpu_svm *svm)
 {
         int err;
@@ -3860,6 +3873,22 @@ static int cr8_write_interception(struct vcpu_svm *svm)
         return 0;
 }
 
+static int svm_get_msr_feature(struct kvm_msr_entry *msr)
+{
+        msr->data = 0;
+
+        switch (msr->index) {
+        case MSR_F10H_DECFG:
+                if (boot_cpu_has(X86_FEATURE_LFENCE_RDTSC))
+                        msr->data |= MSR_F10H_DECFG_LFENCE_SERIALIZE;
+                break;
+        default:
+                return 1;
+        }
+
+        return 0;
+}
+
 static int svm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 {
         struct vcpu_svm *svm = to_svm(vcpu);
@@ -3935,9 +3964,6 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 
                 msr_info->data = svm->spec_ctrl;
                 break;
-        case MSR_IA32_UCODE_REV:
-                msr_info->data = 0x01000065;
-                break;
         case MSR_F15H_IC_CFG: {
 
                 int family, model;
@@ -3955,6 +3981,9 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
                         msr_info->data = 0x1E;
                 }
                 break;
+        case MSR_F10H_DECFG:
+                msr_info->data = svm->msr_decfg;
+                break;
         default:
                 return kvm_get_msr_common(vcpu, msr_info);
         }
@@ -4133,6 +4162,24 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
         case MSR_VM_IGNNE:
                 vcpu_unimpl(vcpu, "unimplemented wrmsr: 0x%x data 0x%llx\n", ecx, data);
                 break;
+        case MSR_F10H_DECFG: {
+                struct kvm_msr_entry msr_entry;
+
+                msr_entry.index = msr->index;
+                if (svm_get_msr_feature(&msr_entry))
+                        return 1;
+
+                /* Check the supported bits */
+                if (data & ~msr_entry.data)
+                        return 1;
+
+                /* Don't allow the guest to change a bit, #GP */
+                if (!msr->host_initiated && (data ^ msr_entry.data))
+                        return 1;
+
+                svm->msr_decfg = data;
+                break;
+        }
         case MSR_IA32_APICBASE:
                 if (kvm_vcpu_apicv_active(vcpu))
                         avic_update_vapic_bar(to_svm(vcpu), data);
@@ -4541,7 +4588,7 @@ static int (*const svm_exit_handlers[])(struct vcpu_svm *svm) = {
         [SVM_EXIT_MWAIT]                        = mwait_interception,
         [SVM_EXIT_XSETBV]                       = xsetbv_interception,
         [SVM_EXIT_NPF]                          = npf_interception,
-        [SVM_EXIT_RSM]                          = emulate_on_interception,
+        [SVM_EXIT_RSM]                          = rsm_interception,
         [SVM_EXIT_AVIC_INCOMPLETE_IPI]          = avic_incomplete_ipi_interception,
         [SVM_EXIT_AVIC_UNACCELERATED_ACCESS]    = avic_unaccelerated_access_interception,
 };
@@ -5355,7 +5402,7 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
          * being speculatively taken.
          */
         if (svm->spec_ctrl)
-                wrmsrl(MSR_IA32_SPEC_CTRL, svm->spec_ctrl);
+                native_wrmsrl(MSR_IA32_SPEC_CTRL, svm->spec_ctrl);
 
         asm volatile (
                 "push %%" _ASM_BP "; \n\t"
@@ -5464,11 +5511,11 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
          * If the L02 MSR bitmap does not intercept the MSR, then we need to
          * save it.
          */
-        if (!msr_write_intercepted(vcpu, MSR_IA32_SPEC_CTRL))
-                rdmsrl(MSR_IA32_SPEC_CTRL, svm->spec_ctrl);
+        if (unlikely(!msr_write_intercepted(vcpu, MSR_IA32_SPEC_CTRL)))
+                svm->spec_ctrl = native_read_msr(MSR_IA32_SPEC_CTRL);
 
         if (svm->spec_ctrl)
-                wrmsrl(MSR_IA32_SPEC_CTRL, 0);
+                native_wrmsrl(MSR_IA32_SPEC_CTRL, 0);
 
         /* Eliminate branch target predictions from guest mode */
         vmexit_fill_RSB();
@@ -6236,16 +6283,18 @@ e_free:
 
 static int sev_launch_measure(struct kvm *kvm, struct kvm_sev_cmd *argp)
 {
+        void __user *measure = (void __user *)(uintptr_t)argp->data;
         struct kvm_sev_info *sev = &kvm->arch.sev_info;
         struct sev_data_launch_measure *data;
         struct kvm_sev_launch_measure params;
+        void __user *p = NULL;
         void *blob = NULL;
         int ret;
 
         if (!sev_guest(kvm))
                 return -ENOTTY;
 
-        if (copy_from_user(&params, (void __user *)(uintptr_t)argp->data, sizeof(params)))
+        if (copy_from_user(&params, measure, sizeof(params)))
                 return -EFAULT;
 
         data = kzalloc(sizeof(*data), GFP_KERNEL);
@@ -6256,17 +6305,13 @@ static int sev_launch_measure(struct kvm *kvm, struct kvm_sev_cmd *argp)
         if (!params.len)
                 goto cmd;
 
-        if (params.uaddr) {
+        p = (void __user *)(uintptr_t)params.uaddr;
+        if (p) {
                 if (params.len > SEV_FW_BLOB_MAX_SIZE) {
                         ret = -EINVAL;
                         goto e_free;
                 }
 
-                if (!access_ok(VERIFY_WRITE, params.uaddr, params.len)) {
-                        ret = -EFAULT;
-                        goto e_free;
-                }
-
                 ret = -ENOMEM;
                 blob = kmalloc(params.len, GFP_KERNEL);
                 if (!blob)
@@ -6290,13 +6335,13 @@ cmd:
                 goto e_free_blob;
 
         if (blob) {
-                if (copy_to_user((void __user *)(uintptr_t)params.uaddr, blob, params.len))
+                if (copy_to_user(p, blob, params.len))
                         ret = -EFAULT;
         }
 
 done:
         params.len = data->len;
-        if (copy_to_user((void __user *)(uintptr_t)argp->data, &params, sizeof(params)))
+        if (copy_to_user(measure, &params, sizeof(params)))
                 ret = -EFAULT;
 e_free_blob:
         kfree(blob);
@@ -6597,7 +6642,7 @@ static int sev_launch_secret(struct kvm *kvm, struct kvm_sev_cmd *argp)
         struct page **pages;
         void *blob, *hdr;
         unsigned long n;
-        int ret;
+        int ret, offset;
 
         if (!sev_guest(kvm))
                 return -ENOTTY;
@@ -6623,6 +6668,10 @@ static int sev_launch_secret(struct kvm *kvm, struct kvm_sev_cmd *argp)
         if (!data)
                 goto e_unpin_memory;
 
+        offset = params.guest_uaddr & (PAGE_SIZE - 1);
+        data->guest_address = __sme_page_pa(pages[0]) + offset;
+        data->guest_len = params.guest_len;
+
         blob = psp_copy_user_blob(params.trans_uaddr, params.trans_len);
         if (IS_ERR(blob)) {
                 ret = PTR_ERR(blob);
@@ -6637,8 +6686,8 @@ static int sev_launch_secret(struct kvm *kvm, struct kvm_sev_cmd *argp)
                 ret = PTR_ERR(hdr);
                 goto e_free_blob;
         }
-        data->trans_address = __psp_pa(blob);
-        data->trans_len = params.trans_len;
+        data->hdr_address = __psp_pa(hdr);
+        data->hdr_len = params.hdr_len;
 
         data->handle = sev->handle;
         ret = sev_issue_cmd(kvm, SEV_CMD_LAUNCH_UPDATE_SECRET, data, &argp->error);
@@ -6821,6 +6870,7 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
         .vcpu_unblocking = svm_vcpu_unblocking,
 
         .update_bp_intercept = update_bp_intercept,
+        .get_msr_feature = svm_get_msr_feature,
         .get_msr = svm_get_msr,
         .set_msr = svm_set_msr,
         .get_segment_base = svm_get_segment_base,
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index f427723dc7db..2d87603f9179 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -51,6 +51,7 @@
 #include <asm/apic.h>
 #include <asm/irq_remapping.h>
 #include <asm/mmu_context.h>
+#include <asm/microcode.h>
 #include <asm/nospec-branch.h>
 
 #include "trace.h"
@@ -1044,6 +1045,13 @@ static inline bool is_machine_check(u32 intr_info)
                 (INTR_TYPE_HARD_EXCEPTION | MC_VECTOR | INTR_INFO_VALID_MASK);
 }
 
+/* Undocumented: icebp/int1 */
+static inline bool is_icebp(u32 intr_info)
+{
+        return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))
+                == (INTR_TYPE_PRIV_SW_EXCEPTION | INTR_INFO_VALID_MASK);
+}
+
 static inline bool cpu_has_vmx_msr_bitmap(void)
 {
         return vmcs_config.cpu_based_exec_ctrl & CPU_BASED_USE_MSR_BITMAPS;
@@ -3226,6 +3234,11 @@ static inline bool vmx_feature_control_msr_valid(struct kvm_vcpu *vcpu,
         return !(val & ~valid_bits);
 }
 
+static int vmx_get_msr_feature(struct kvm_msr_entry *msr)
+{
+        return 1;
+}
+
 /*
  * Reads an msr value (of 'msr_index') into 'pdata'.
  * Returns 0 on success, non-0 otherwise.
@@ -4485,7 +4498,8 @@ static int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
                 vmcs_set_bits(SECONDARY_VM_EXEC_CONTROL,
                               SECONDARY_EXEC_DESC);
                 hw_cr4 &= ~X86_CR4_UMIP;
-        } else
+        } else if (!is_guest_mode(vcpu) ||
+                   !nested_cpu_has2(get_vmcs12(vcpu), SECONDARY_EXEC_DESC))
                 vmcs_clear_bits(SECONDARY_VM_EXEC_CONTROL,
                                 SECONDARY_EXEC_DESC);
 
@@ -5765,6 +5779,7 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
         vmx->rmode.vm86_active = 0;
         vmx->spec_ctrl = 0;
 
+        vcpu->arch.microcode_version = 0x100000000ULL;
         vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val();
         kvm_set_cr8(vcpu, 0);
 
@@ -6171,7 +6186,7 @@ static int handle_exception(struct kvm_vcpu *vcpu)
                       (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP))) {
                         vcpu->arch.dr6 &= ~15;
                         vcpu->arch.dr6 |= dr6 | DR6_RTM;
-                        if (!(dr6 & ~DR6_RESERVED)) /* icebp */
+                        if (is_icebp(intr_info))
                                 skip_emulated_instruction(vcpu);
 
                         kvm_queue_exception(vcpu, DB_VECTOR);
@@ -9452,7 +9467,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
          * being speculatively taken.
          */
         if (vmx->spec_ctrl)
-                wrmsrl(MSR_IA32_SPEC_CTRL, vmx->spec_ctrl);
+                native_wrmsrl(MSR_IA32_SPEC_CTRL, vmx->spec_ctrl);
 
         vmx->__launched = vmx->loaded_vmcs->launched;
         asm(
@@ -9587,11 +9602,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
          * If the L02 MSR bitmap does not intercept the MSR, then we need to
          * save it.
          */
-        if (!msr_write_intercepted(vcpu, MSR_IA32_SPEC_CTRL))
-                rdmsrl(MSR_IA32_SPEC_CTRL, vmx->spec_ctrl);
+        if (unlikely(!msr_write_intercepted(vcpu, MSR_IA32_SPEC_CTRL)))
+                vmx->spec_ctrl = native_read_msr(MSR_IA32_SPEC_CTRL);
 
         if (vmx->spec_ctrl)
-                wrmsrl(MSR_IA32_SPEC_CTRL, 0);
+                native_wrmsrl(MSR_IA32_SPEC_CTRL, 0);
 
         /* Eliminate branch target predictions from guest mode */
         vmexit_fill_RSB();
@@ -10136,7 +10151,10 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
                         (unsigned long)(vmcs12->posted_intr_desc_addr &
                         (PAGE_SIZE - 1)));
         }
-        if (!nested_vmx_prepare_msr_bitmap(vcpu, vmcs12))
+        if (nested_vmx_prepare_msr_bitmap(vcpu, vmcs12))
+                vmcs_set_bits(CPU_BASED_VM_EXEC_CONTROL,
+                              CPU_BASED_USE_MSR_BITMAPS);
+        else
                 vmcs_clear_bits(CPU_BASED_VM_EXEC_CONTROL,
                                 CPU_BASED_USE_MSR_BITMAPS);
 }
@@ -10224,8 +10242,8 @@ static inline bool nested_vmx_prepare_msr_bitmap(struct kvm_vcpu *vcpu,
          *    updated to reflect this when L1 (or its L2s) actually write to
          *    the MSR.
          */
-        bool pred_cmd = msr_write_intercepted_l01(vcpu, MSR_IA32_PRED_CMD);
-        bool spec_ctrl = msr_write_intercepted_l01(vcpu, MSR_IA32_SPEC_CTRL);
+        bool pred_cmd = !msr_write_intercepted_l01(vcpu, MSR_IA32_PRED_CMD);
+        bool spec_ctrl = !msr_write_intercepted_l01(vcpu, MSR_IA32_SPEC_CTRL);
 
         /* Nothing to do if the MSR bitmap is not in use.  */
         if (!cpu_has_vmx_msr_bitmap() ||
@@ -11196,7 +11214,12 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
         if (ret)
                 return ret;
 
-        if (vmcs12->guest_activity_state == GUEST_ACTIVITY_HLT)
+        /*
+         * If we're entering a halted L2 vcpu and the L2 vcpu won't be woken
+         * by event injection, halt vcpu.
+         */
+        if ((vmcs12->guest_activity_state == GUEST_ACTIVITY_HLT) &&
+            !(vmcs12->vm_entry_intr_info_field & INTR_INFO_VALID_MASK))
                 return kvm_vcpu_halt(vcpu);
 
         vmx->nested.nested_run_pending = 1;
@@ -12287,6 +12310,7 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
         .vcpu_put = vmx_vcpu_put,
 
         .update_bp_intercept = update_exception_bitmap,
+        .get_msr_feature = vmx_get_msr_feature,
         .get_msr = vmx_get_msr,
         .set_msr = vmx_set_msr,
         .get_segment_base = vmx_get_segment_base,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c8a0b545ac20..18b5ca7a3197 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1049,6 +1049,45 @@ static u32 emulated_msrs[] = {
 
 static unsigned num_emulated_msrs;
 
+/*
+ * List of msr numbers which are used to expose MSR-based features that
+ * can be used by a hypervisor to validate requested CPU features.
+ */
+static u32 msr_based_features[] = {
+        MSR_F10H_DECFG,
+        MSR_IA32_UCODE_REV,
+};
+
+static unsigned int num_msr_based_features;
+
+static int kvm_get_msr_feature(struct kvm_msr_entry *msr)
+{
+        switch (msr->index) {
+        case MSR_IA32_UCODE_REV:
+                rdmsrl(msr->index, msr->data);
+                break;
+        default:
+                if (kvm_x86_ops->get_msr_feature(msr))
+                        return 1;
+        }
+        return 0;
+}
+
+static int do_get_msr_feature(struct kvm_vcpu *vcpu, unsigned index, u64 *data)
+{
+        struct kvm_msr_entry msr;
+        int r;
+
+        msr.index = index;
+        r = kvm_get_msr_feature(&msr);
+        if (r)
+                return r;
+
+        *data = msr.data;
+
+        return 0;
+}
+
 bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer)
 {
         if (efer & efer_reserved_bits)
@@ -2222,7 +2261,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 
         switch (msr) {
         case MSR_AMD64_NB_CFG:
-        case MSR_IA32_UCODE_REV:
         case MSR_IA32_UCODE_WRITE:
         case MSR_VM_HSAVE_PA:
         case MSR_AMD64_PATCH_LOADER:
@@ -2230,6 +2268,10 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
         case MSR_AMD64_DC_CFG:
                 break;
 
+        case MSR_IA32_UCODE_REV:
+                if (msr_info->host_initiated)
+                        vcpu->arch.microcode_version = data;
+                break;
         case MSR_EFER:
                 return set_efer(vcpu, data);
         case MSR_K7_HWCR:
@@ -2525,7 +2567,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
                 msr_info->data = 0;
                 break;
         case MSR_IA32_UCODE_REV:
-                msr_info->data = 0x100000000ULL;
+                msr_info->data = vcpu->arch.microcode_version;
                 break;
         case MSR_MTRRcap:
         case 0x200 ... 0x2ff:
@@ -2680,13 +2722,11 @@ static int __msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs *msrs,
                     int (*do_msr)(struct kvm_vcpu *vcpu,
                                   unsigned index, u64 *data))
 {
-        int i, idx;
+        int i;
 
-        idx = srcu_read_lock(&vcpu->kvm->srcu);
         for (i = 0; i < msrs->nmsrs; ++i)
                 if (do_msr(vcpu, entries[i].index, &entries[i].data))
                         break;
-        srcu_read_unlock(&vcpu->kvm->srcu, idx);
 
         return i;
 }
@@ -2785,6 +2825,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
         case KVM_CAP_SET_BOOT_CPU_ID:
         case KVM_CAP_SPLIT_IRQCHIP:
         case KVM_CAP_IMMEDIATE_EXIT:
+        case KVM_CAP_GET_MSR_FEATURES:
                 r = 1;
                 break;
         case KVM_CAP_ADJUST_CLOCK:
@@ -2899,6 +2940,31 @@ long kvm_arch_dev_ioctl(struct file *filp,
                         goto out;
                 r = 0;
                 break;
+        case KVM_GET_MSR_FEATURE_INDEX_LIST: {
+                struct kvm_msr_list __user *user_msr_list = argp;
+                struct kvm_msr_list msr_list;
+                unsigned int n;
+
+                r = -EFAULT;
+                if (copy_from_user(&msr_list, user_msr_list, sizeof(msr_list)))
+                        goto out;
+                n = msr_list.nmsrs;
+                msr_list.nmsrs = num_msr_based_features;
+                if (copy_to_user(user_msr_list, &msr_list, sizeof(msr_list)))
+                        goto out;
+                r = -E2BIG;
+                if (n < msr_list.nmsrs)
+                        goto out;
+                r = -EFAULT;
+                if (copy_to_user(user_msr_list->indices, &msr_based_features,
+                                 num_msr_based_features * sizeof(u32)))
+                        goto out;
+                r = 0;
+                break;
+        }
+        case KVM_GET_MSRS:
+                r = msr_io(NULL, argp, do_get_msr_feature, 1);
+                break;
         }
         default:
                 r = -EINVAL;
@@ -3636,12 +3702,18 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
                 r = 0;
                 break;
         }
-        case KVM_GET_MSRS:
+        case KVM_GET_MSRS: {
+                int idx = srcu_read_lock(&vcpu->kvm->srcu);
                 r = msr_io(vcpu, argp, do_get_msr, 1);
+                srcu_read_unlock(&vcpu->kvm->srcu, idx);
                 break;
-        case KVM_SET_MSRS:
+        }
+        case KVM_SET_MSRS: {
+                int idx = srcu_read_lock(&vcpu->kvm->srcu);
                 r = msr_io(vcpu, argp, do_set_msr, 0);
+                srcu_read_unlock(&vcpu->kvm->srcu, idx);
                 break;
+        }
         case KVM_TPR_ACCESS_REPORTING: {
                 struct kvm_tpr_access_ctl tac;
 
@@ -4464,6 +4536,19 @@ static void kvm_init_msr_list(void)
                 j++;
         }
         num_emulated_msrs = j;
+
+        for (i = j = 0; i < ARRAY_SIZE(msr_based_features); i++) {
+                struct kvm_msr_entry msr;
+
+                msr.index = msr_based_features[i];
+                if (kvm_get_msr_feature(&msr))
+                        continue;
+
+                if (j < i)
+                        msr_based_features[j] = msr_based_features[i];
+                j++;
+        }
+        num_msr_based_features = j;
 }
 
 static int vcpu_mmio_write(struct kvm_vcpu *vcpu, gpa_t addr, int len,
@@ -8017,6 +8102,8 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
 
 void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
 {
+        kvm_lapic_reset(vcpu, init_event);
+
         vcpu->arch.hflags = 0;
 
         vcpu->arch.smi_pending = 0;
@@ -8460,10 +8547,8 @@ int __x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size)
                         return r;
         }
 
-        if (!size) {
-                r = vm_munmap(old.userspace_addr, old.npages * PAGE_SIZE);
-                WARN_ON(r < 0);
-        }
+        if (!size)
+                vm_munmap(old.userspace_addr, old.npages * PAGE_SIZE);
 
         return 0;
 }
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 91e9700cc6dc..25a972c61b0a 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -28,7 +28,6 @@ lib-$(CONFIG_INSTRUCTION_DECODER) += insn.o inat.o insn-eval.o
 lib-$(CONFIG_RANDOMIZE_BASE) += kaslr.o
 lib-$(CONFIG_FUNCTION_ERROR_INJECTION)  += error-inject.o
 lib-$(CONFIG_RETPOLINE) += retpoline.o
-OBJECT_FILES_NON_STANDARD_retpoline.o :=y
 
 obj-y += msr.o msr-reg.o msr-reg-export.o hweight.o
 
diff --git a/arch/x86/lib/cpu.c b/arch/x86/lib/cpu.c
index d6f848d1211d..2dd1fe13a37b 100644
--- a/arch/x86/lib/cpu.c
+++ b/arch/x86/lib/cpu.c
@@ -18,7 +18,7 @@ unsigned int x86_model(unsigned int sig)
 {
         unsigned int fam, model;
 
-         fam = x86_family(sig);
+        fam = x86_family(sig);
 
         model = (sig >> 4) & 0xf;
 
diff --git a/arch/x86/lib/error-inject.c b/arch/x86/lib/error-inject.c
index 7b881d03d0dd..3cdf06128d13 100644
--- a/arch/x86/lib/error-inject.c
+++ b/arch/x86/lib/error-inject.c
@@ -7,6 +7,7 @@ asmlinkage void just_return_func(void);
 
 asm(
         ".type just_return_func, @function\n"
+        ".globl just_return_func\n"
         "just_return_func:\n"
         "       ret\n"
         ".size just_return_func, .-just_return_func\n"
diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S
index 480edc3a5e03..c909961e678a 100644
--- a/arch/x86/lib/retpoline.S
+++ b/arch/x86/lib/retpoline.S
@@ -7,7 +7,6 @@
 #include <asm/alternative-asm.h>
 #include <asm/export.h>
 #include <asm/nospec-branch.h>
-#include <asm/bitsperlong.h>
 
 .macro THUNK reg
         .section .text.__x86.indirect_thunk
@@ -47,58 +46,3 @@ GENERATE_THUNK(r13)
 GENERATE_THUNK(r14)
 GENERATE_THUNK(r15)
 #endif
-
-/*
- * Fill the CPU return stack buffer.
- *
- * Each entry in the RSB, if used for a speculative 'ret', contains an
- * infinite 'pause; lfence; jmp' loop to capture speculative execution.
- *
- * This is required in various cases for retpoline and IBRS-based
- * mitigations for the Spectre variant 2 vulnerability. Sometimes to
- * eliminate potentially bogus entries from the RSB, and sometimes
- * purely to ensure that it doesn't get empty, which on some CPUs would
- * allow predictions from other (unwanted!) sources to be used.
- *
- * Google experimented with loop-unrolling and this turned out to be
- * the optimal version - two calls, each with their own speculation
- * trap should their return address end up getting used, in a loop.
- */
-.macro STUFF_RSB nr:req sp:req
-        mov     $(\nr / 2), %_ASM_BX
-        .align 16
-771:
-        call    772f
-773:                                            /* speculation trap */
-        pause
-        lfence
-        jmp     773b
-        .align 16
-772:
-        call    774f
-775:                                            /* speculation trap */
-        pause
-        lfence
-        jmp     775b
-        .align 16
-774:
-        dec     %_ASM_BX
-        jnz     771b
-        add     $((BITS_PER_LONG/8) * \nr), \sp
-.endm
-
-#define RSB_FILL_LOOPS          16      /* To avoid underflow */
-
-ENTRY(__fill_rsb)
-        STUFF_RSB RSB_FILL_LOOPS, %_ASM_SP
-        ret
-END(__fill_rsb)
-EXPORT_SYMBOL_GPL(__fill_rsb)
-
-#define RSB_CLEAR_LOOPS         32      /* To forcibly overwrite all entries */
-
-ENTRY(__clear_rsb)
-        STUFF_RSB RSB_CLEAR_LOOPS, %_ASM_SP
-        ret
-END(__clear_rsb)
-EXPORT_SYMBOL_GPL(__clear_rsb)
diff --git a/arch/x86/mm/cpu_entry_area.c b/arch/x86/mm/cpu_entry_area.c
index b9283cc27622..476d810639a8 100644
--- a/arch/x86/mm/cpu_entry_area.c
+++ b/arch/x86/mm/cpu_entry_area.c
@@ -163,4 +163,10 @@ void __init setup_cpu_entry_areas(void)
 
         for_each_possible_cpu(cpu)
                 setup_cpu_entry_area(cpu);
+
+        /*
+         * This is the last essential update to swapper_pgdir which needs
+         * to be synchronized to initial_page_table on 32bit.
+         */
+        sync_initial_page_table();
 }
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 800de815519c..25a30b5d6582 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -330,7 +330,7 @@ static noinline int vmalloc_fault(unsigned long address)
         if (!pmd_k)
                 return -1;
 
-        if (pmd_huge(*pmd_k))
+        if (pmd_large(*pmd_k))
                 return 0;
 
         pte_k = pte_offset_kernel(pmd_k, address);
@@ -475,7 +475,7 @@ static noinline int vmalloc_fault(unsigned long address)
         if (pud_none(*pud) || pud_pfn(*pud) != pud_pfn(*pud_ref))
                 BUG();
 
-        if (pud_huge(*pud))
+        if (pud_large(*pud))
                 return 0;
 
         pmd = pmd_offset(pud, address);
@@ -486,7 +486,7 @@ static noinline int vmalloc_fault(unsigned long address)
         if (pmd_none(*pmd) || pmd_pfn(*pmd) != pmd_pfn(*pmd_ref))
                 BUG();
 
-        if (pmd_huge(*pmd))
+        if (pmd_large(*pmd))
                 return 0;
 
         pte_ref = pte_offset_kernel(pmd_ref, address);
@@ -1248,10 +1248,6 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
         tsk = current;
         mm = tsk->mm;
 
-        /*
-         * Detect and handle instructions that would cause a page fault for
-         * both a tracked kernel page and a userspace page.
-         */
         prefetchw(&mm->mmap_sem);
 
         if (unlikely(kmmio_fault(regs, address)))
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 79cb066f40c0..396e1f0151ac 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -453,6 +453,21 @@ static inline void permanent_kmaps_init(pgd_t *pgd_base)
 }
 #endif /* CONFIG_HIGHMEM */
 
+void __init sync_initial_page_table(void)
+{
+        clone_pgd_range(initial_page_table + KERNEL_PGD_BOUNDARY,
+                        swapper_pg_dir     + KERNEL_PGD_BOUNDARY,
+                        KERNEL_PGD_PTRS);
+
+        /*
+         * sync back low identity map too.  It is used for example
+         * in the 32-bit EFI stub.
+         */
+        clone_pgd_range(initial_page_table,
+                        swapper_pg_dir     + KERNEL_PGD_BOUNDARY,
+                        min(KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY));
+}
+
 void __init native_pagetable_init(void)
 {
         unsigned long pfn, va;
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 1ab42c852069..af11a2890235 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -256,7 +256,7 @@ static void __set_pte_vaddr(pud_t *pud, unsigned long vaddr, pte_t new_pte)
          * It's enough to flush this one mapping.
          * (PGE mappings get flushed as well)
          */
-        __flush_tlb_one(vaddr);
+        __flush_tlb_one_kernel(vaddr);
 }
 
 void set_pte_vaddr_p4d(p4d_t *p4d_page, unsigned long vaddr, pte_t new_pte)
@@ -800,17 +800,11 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
 
 #define PAGE_INUSE 0xFD
 
-static void __meminit free_pagetable(struct page *page, int order,
-                struct vmem_altmap *altmap)
+static void __meminit free_pagetable(struct page *page, int order)
 {
         unsigned long magic;
         unsigned int nr_pages = 1 << order;
 
-        if (altmap) {
-                vmem_altmap_free(altmap, nr_pages);
-                return;
-        }
-
         /* bootmem page has reserved flag */
         if (PageReserved(page)) {
                 __ClearPageReserved(page);
@@ -826,9 +820,17 @@ static void __meminit free_pagetable(struct page *page, int order,
                 free_pages((unsigned long)page_address(page), order);
 }
 
-static void __meminit free_pte_table(pte_t *pte_start, pmd_t *pmd,
+static void __meminit free_hugepage_table(struct page *page,
                 struct vmem_altmap *altmap)
 {
+        if (altmap)
+                vmem_altmap_free(altmap, PMD_SIZE / PAGE_SIZE);
+        else
+                free_pagetable(page, get_order(PMD_SIZE));
+}
+
+static void __meminit free_pte_table(pte_t *pte_start, pmd_t *pmd)
+{
         pte_t *pte;
         int i;
 
@@ -839,14 +841,13 @@ static void __meminit free_pte_table(pte_t *pte_start, pmd_t *pmd,
         }
 
         /* free a pte talbe */
-        free_pagetable(pmd_page(*pmd), 0, altmap);
+        free_pagetable(pmd_page(*pmd), 0);
         spin_lock(&init_mm.page_table_lock);
         pmd_clear(pmd);
         spin_unlock(&init_mm.page_table_lock);
 }
 
-static void __meminit free_pmd_table(pmd_t *pmd_start, pud_t *pud,
-                struct vmem_altmap *altmap)
+static void __meminit free_pmd_table(pmd_t *pmd_start, pud_t *pud)
 {
         pmd_t *pmd;
         int i;
@@ -858,14 +859,13 @@ static void __meminit free_pmd_table(pmd_t *pmd_start, pud_t *pud,
         }
 
         /* free a pmd talbe */
-        free_pagetable(pud_page(*pud), 0, altmap);
+        free_pagetable(pud_page(*pud), 0);
         spin_lock(&init_mm.page_table_lock);
         pud_clear(pud);
         spin_unlock(&init_mm.page_table_lock);
 }
 
-static void __meminit free_pud_table(pud_t *pud_start, p4d_t *p4d,
-                struct vmem_altmap *altmap)
+static void __meminit free_pud_table(pud_t *pud_start, p4d_t *p4d)
 {
         pud_t *pud;
         int i;
@@ -877,7 +877,7 @@ static void __meminit free_pud_table(pud_t *pud_start, p4d_t *p4d,
         }
 
         /* free a pud talbe */
-        free_pagetable(p4d_page(*p4d), 0, altmap);
+        free_pagetable(p4d_page(*p4d), 0);
         spin_lock(&init_mm.page_table_lock);
         p4d_clear(p4d);
         spin_unlock(&init_mm.page_table_lock);
@@ -885,7 +885,7 @@ static void __meminit free_pud_table(pud_t *pud_start, p4d_t *p4d,
 
 static void __meminit
 remove_pte_table(pte_t *pte_start, unsigned long addr, unsigned long end,
-                 struct vmem_altmap *altmap, bool direct)
+                 bool direct)
 {
         unsigned long next, pages = 0;
         pte_t *pte;
@@ -916,7 +916,7 @@ remove_pte_table(pte_t *pte_start, unsigned long addr, unsigned long end,
                          * freed when offlining, or simplely not in use.
                          */
                         if (!direct)
-                                free_pagetable(pte_page(*pte), 0, altmap);
+                                free_pagetable(pte_page(*pte), 0);
 
                         spin_lock(&init_mm.page_table_lock);
                         pte_clear(&init_mm, addr, pte);
@@ -939,7 +939,7 @@ remove_pte_table(pte_t *pte_start, unsigned long addr, unsigned long end,
 
                         page_addr = page_address(pte_page(*pte));
                         if (!memchr_inv(page_addr, PAGE_INUSE, PAGE_SIZE)) {
-                                free_pagetable(pte_page(*pte), 0, altmap);
+                                free_pagetable(pte_page(*pte), 0);
 
                                 spin_lock(&init_mm.page_table_lock);
                                 pte_clear(&init_mm, addr, pte);
@@ -974,9 +974,8 @@ remove_pmd_table(pmd_t *pmd_start, unsigned long addr, unsigned long end,
                         if (IS_ALIGNED(addr, PMD_SIZE) &&
                             IS_ALIGNED(next, PMD_SIZE)) {
                                 if (!direct)
-                                        free_pagetable(pmd_page(*pmd),
-                                                       get_order(PMD_SIZE),
-                                                       altmap);
+                                        free_hugepage_table(pmd_page(*pmd),
+                                                            altmap);
 
                                 spin_lock(&init_mm.page_table_lock);
                                 pmd_clear(pmd);
@@ -989,9 +988,8 @@ remove_pmd_table(pmd_t *pmd_start, unsigned long addr, unsigned long end,
                                 page_addr = page_address(pmd_page(*pmd));
                                 if (!memchr_inv(page_addr, PAGE_INUSE,
                                                 PMD_SIZE)) {
-                                        free_pagetable(pmd_page(*pmd),
-                                                       get_order(PMD_SIZE),
-                                                       altmap);
+                                        free_hugepage_table(pmd_page(*pmd),
+                                                            altmap);
 
                                         spin_lock(&init_mm.page_table_lock);
                                         pmd_clear(pmd);
@@ -1003,8 +1001,8 @@ remove_pmd_table(pmd_t *pmd_start, unsigned long addr, unsigned long end,
                 }
 
                 pte_base = (pte_t *)pmd_page_vaddr(*pmd);
-                remove_pte_table(pte_base, addr, next, altmap, direct);
-                free_pte_table(pte_base, pmd, altmap);
+                remove_pte_table(pte_base, addr, next, direct);
+                free_pte_table(pte_base, pmd);
         }
 
         /* Call free_pmd_table() in remove_pud_table(). */
@@ -1033,8 +1031,7 @@ remove_pud_table(pud_t *pud_start, unsigned long addr, unsigned long end,
                             IS_ALIGNED(next, PUD_SIZE)) {
                                 if (!direct)
                                         free_pagetable(pud_page(*pud),
-                                                       get_order(PUD_SIZE),
-                                                       altmap);
+                                                       get_order(PUD_SIZE));
 
                                 spin_lock(&init_mm.page_table_lock);
                                 pud_clear(pud);
@@ -1048,8 +1045,7 @@ remove_pud_table(pud_t *pud_start, unsigned long addr, unsigned long end,
                                 if (!memchr_inv(page_addr, PAGE_INUSE,
                                                 PUD_SIZE)) {
                                         free_pagetable(pud_page(*pud),
-                                                       get_order(PUD_SIZE),
-                                                       altmap);
+                                                       get_order(PUD_SIZE));
 
                                         spin_lock(&init_mm.page_table_lock);
                                         pud_clear(pud);
@@ -1062,7 +1058,7 @@ remove_pud_table(pud_t *pud_start, unsigned long addr, unsigned long end,
 
                 pmd_base = pmd_offset(pud, 0);
                 remove_pmd_table(pmd_base, addr, next, direct, altmap);
-                free_pmd_table(pmd_base, pud, altmap);
+                free_pmd_table(pmd_base, pud);
         }
 
         if (direct)
@@ -1094,7 +1090,7 @@ remove_p4d_table(p4d_t *p4d_start, unsigned long addr, unsigned long end,
                  * to adapt for boot-time switching between 4 and 5 level page tables.
                  */
                 if (CONFIG_PGTABLE_LEVELS == 5)
-                        free_pud_table(pud_base, p4d, altmap);
+                        free_pud_table(pud_base, p4d);
         }
 
         if (direct)
@@ -1193,8 +1189,8 @@ void __init mem_init(void)
         register_page_bootmem_info();
 
         /* Register memory areas for /proc/kcore */
-        kclist_add(&kcore_vsyscall, (void *)VSYSCALL_ADDR,
-                         PAGE_SIZE, KCORE_OTHER);
+        if (get_gate_vma(&init_mm))
+                kclist_add(&kcore_vsyscall, (void *)VSYSCALL_ADDR, PAGE_SIZE, KCORE_USER);
 
         mem_init_print_info(NULL);
 }
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index c45b6ec5357b..e2db83bebc3b 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -820,5 +820,5 @@ void __init __early_set_fixmap(enum fixed_addresses idx,
                 set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags));
         else
                 pte_clear(&init_mm, addr, pte);
-        __flush_tlb_one(addr);
+        __flush_tlb_one_kernel(addr);
 }
diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
index 58477ec3d66d..7c8686709636 100644
--- a/arch/x86/mm/kmmio.c
+++ b/arch/x86/mm/kmmio.c
@@ -168,7 +168,7 @@ static int clear_page_presence(struct kmmio_fault_page *f, bool clear)
                 return -1;
         }
 
-        __flush_tlb_one(f->addr);
+        __flush_tlb_one_kernel(f->addr);
         return 0;
 }
 
diff --git a/arch/x86/mm/mem_encrypt_boot.S b/arch/x86/mm/mem_encrypt_boot.S
index 01f682cf77a8..40a6085063d6 100644
--- a/arch/x86/mm/mem_encrypt_boot.S
+++ b/arch/x86/mm/mem_encrypt_boot.S
@@ -15,6 +15,7 @@
 #include <asm/page.h>
 #include <asm/processor-flags.h>
 #include <asm/msr-index.h>
+#include <asm/nospec-branch.h>
 
         .text
         .code64
@@ -59,6 +60,7 @@ ENTRY(sme_encrypt_execute)
         movq    %rax, %r8               /* Workarea encryption routine */
         addq    $PAGE_SIZE, %r8         /* Workarea intermediate copy buffer */
 
+        ANNOTATE_RETPOLINE_SAFE
         call    *%rax                   /* Call the encryption routine */
 
         pop     %r12
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 004abf9ebf12..34cda7e0551b 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -702,4 +702,52 @@ int pmd_clear_huge(pmd_t *pmd)
 
         return 0;
 }
+
+/**
+ * pud_free_pmd_page - Clear pud entry and free pmd page.
+ * @pud: Pointer to a PUD.
+ *
+ * Context: The pud range has been unmaped and TLB purged.
+ * Return: 1 if clearing the entry succeeded. 0 otherwise.
+ */
+int pud_free_pmd_page(pud_t *pud)
+{
+        pmd_t *pmd;
+        int i;
+
+        if (pud_none(*pud))
+                return 1;
+
+        pmd = (pmd_t *)pud_page_vaddr(*pud);
+
+        for (i = 0; i < PTRS_PER_PMD; i++)
+                if (!pmd_free_pte_page(&pmd[i]))
+                        return 0;
+
+        pud_clear(pud);
+        free_page((unsigned long)pmd);
+
+        return 1;
+}
+
+/**
+ * pmd_free_pte_page - Clear pmd entry and free pte page.
+ * @pmd: Pointer to a PMD.
+ *
+ * Context: The pmd range has been unmaped and TLB purged.
+ * Return: 1 if clearing the entry succeeded. 0 otherwise.
+ */
+int pmd_free_pte_page(pmd_t *pmd)
+{
+        pte_t *pte;
+
+        if (pmd_none(*pmd))
+                return 1;
+
+        pte = (pte_t *)pmd_page_vaddr(*pmd);
+        pmd_clear(pmd);
+        free_page((unsigned long)pte);
+
+        return 1;
+}
 #endif  /* CONFIG_HAVE_ARCH_HUGE_VMAP */
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index c3c5274410a9..9bb7f0ab9fe6 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -63,7 +63,7 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval)
          * It's enough to flush this one mapping.
          * (PGE mappings get flushed as well)
          */
-        __flush_tlb_one(vaddr);
+        __flush_tlb_one_kernel(vaddr);
 }
 
 unsigned long __FIXADDR_TOP = 0xfffff000;
diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c
index ce38f165489b..631507f0c198 100644
--- a/arch/x86/mm/pti.c
+++ b/arch/x86/mm/pti.c
@@ -332,7 +332,7 @@ static void __init pti_clone_user_shared(void)
 }
 
 /*
- * Clone the ESPFIX P4D into the user space visinble page table
+ * Clone the ESPFIX P4D into the user space visible page table
  */
 static void __init pti_setup_espfix64(void)
 {
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 8dcc0607f805..7f1a51399674 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -498,7 +498,7 @@ static void flush_tlb_func_common(const struct flush_tlb_info *f,
          *    flush that changes context.tlb_gen from 2 to 3.  If they get
          *    processed on this CPU in reverse order, we'll see
          *     local_tlb_gen == 1, mm_tlb_gen == 3, and end != TLB_FLUSH_ALL.
-         *    If we were to use __flush_tlb_single() and set local_tlb_gen to
+         *    If we were to use __flush_tlb_one_user() and set local_tlb_gen to
          *    3, we'd be break the invariant: we'd update local_tlb_gen above
          *    1 without the full flush that's needed for tlb_gen 2.
          *
@@ -519,7 +519,7 @@ static void flush_tlb_func_common(const struct flush_tlb_info *f,
 
                 addr = f->start;
                 while (addr < f->end) {
-                        __flush_tlb_single(addr);
+                        __flush_tlb_one_user(addr);
                         addr += PAGE_SIZE;
                 }
                 if (local)
@@ -666,7 +666,7 @@ static void do_kernel_range_flush(void *info)
 
         /* flush range by one by one 'invlpg' */
         for (addr = f->start; addr < f->end; addr += PAGE_SIZE)
-                __flush_tlb_one(addr);
+                __flush_tlb_one_kernel(addr);
 }
 
 void flush_tlb_kernel_range(unsigned long start, unsigned long end)
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 4923d92f918d..ce5b2ebd5701 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -13,6 +13,7 @@
 #include <linux/if_vlan.h>
 #include <asm/cacheflush.h>
 #include <asm/set_memory.h>
+#include <asm/nospec-branch.h>
 #include <linux/bpf.h>
 
 /*
@@ -290,7 +291,7 @@ static void emit_bpf_tail_call(u8 **pprog)
         EMIT2(0x89, 0xD2);                        /* mov edx, edx */
         EMIT3(0x39, 0x56,                         /* cmp dword ptr [rsi + 16], edx */
               offsetof(struct bpf_array, map.max_entries));
-#define OFFSET1 43 /* number of bytes to jump */
+#define OFFSET1 (41 + RETPOLINE_RAX_BPF_JIT_SIZE) /* number of bytes to jump */
         EMIT2(X86_JBE, OFFSET1);                  /* jbe out */
         label1 = cnt;
 
@@ -299,7 +300,7 @@ static void emit_bpf_tail_call(u8 **pprog)
          */
         EMIT2_off32(0x8B, 0x85, 36);              /* mov eax, dword ptr [rbp + 36] */
         EMIT3(0x83, 0xF8, MAX_TAIL_CALL_CNT);     /* cmp eax, MAX_TAIL_CALL_CNT */
-#define OFFSET2 32
+#define OFFSET2 (30 + RETPOLINE_RAX_BPF_JIT_SIZE)
         EMIT2(X86_JA, OFFSET2);                   /* ja out */
         label2 = cnt;
         EMIT3(0x83, 0xC0, 0x01);                  /* add eax, 1 */
@@ -313,7 +314,7 @@ static void emit_bpf_tail_call(u8 **pprog)
          *   goto out;
          */
         EMIT3(0x48, 0x85, 0xC0);                  /* test rax,rax */
-#define OFFSET3 10
+#define OFFSET3 (8 + RETPOLINE_RAX_BPF_JIT_SIZE)
         EMIT2(X86_JE, OFFSET3);                   /* je out */
         label3 = cnt;
 
@@ -326,7 +327,7 @@ static void emit_bpf_tail_call(u8 **pprog)
          * rdi == ctx (1st arg)
          * rax == prog->bpf_func + prologue_size
          */
-        EMIT2(0xFF, 0xE0);                        /* jmp rax */
+        RETPOLINE_RAX_BPF_JIT();
 
         /* out: */
         BUILD_BUG_ON(cnt - label1 != OFFSET1);
@@ -1187,7 +1188,7 @@ skip_init_addrs:
          * may converge on the last pass. In such case do one more
          * pass to emit the final image
          */
-        for (pass = 0; pass < 10 || image; pass++) {
+        for (pass = 0; pass < 20 || image; pass++) {
                 proglen = do_jit(prog, addrs, image, oldproglen, &ctx);
                 if (proglen <= 0) {
                         image = NULL;
@@ -1214,6 +1215,7 @@ skip_init_addrs:
                         }
                 }
                 oldproglen = proglen;
+                cond_resched();
         }
 
         if (bpf_jit_enable > 1)
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 174c59774cc9..a7a7677265b6 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -460,7 +460,7 @@ static int nmi_setup(void)
                 goto fail;
 
         for_each_possible_cpu(cpu) {
-                if (!cpu)
+                if (!IS_ENABLED(CONFIG_SMP) || !cpu)
                         continue;
 
                 memcpy(per_cpu(cpu_msrs, cpu).counters,
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index c310a8284358..f9cfbc0d1f33 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -227,7 +227,7 @@ int __init efi_alloc_page_tables(void)
         if (!pud) {
                 if (CONFIG_PGTABLE_LEVELS > 4)
                         free_page((unsigned long) pgd_page_vaddr(*pgd));
-                free_page((unsigned long)efi_pgd);
+                free_pages((unsigned long)efi_pgd, PGD_ALLOCATION_ORDER);
                 return -ENOMEM;
         }
 
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 2c67bae6bb53..fb1df9488e98 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -79,7 +79,7 @@ static void intel_mid_power_off(void)
 
 static void intel_mid_reboot(void)
 {
-        intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
+        intel_scu_ipc_simple_command(IPCMSG_COLD_RESET, 0);
 }
 
 static unsigned long __init intel_mid_calibrate_tsc(void)
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index c2e9285d1bf1..db77e087adaf 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -299,7 +299,7 @@ static void bau_process_message(struct msg_desc *mdp, struct bau_control *bcp,
                 local_flush_tlb();
                 stat->d_alltlb++;
         } else {
-                __flush_tlb_single(msg->address);
+                __flush_tlb_one_user(msg->address);
                 stat->d_onetlb++;
         }
         stat->d_requestee++;
diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
index de53bd15df5a..24bb7598774e 100644
--- a/arch/x86/realmode/rm/trampoline_64.S
+++ b/arch/x86/realmode/rm/trampoline_64.S
@@ -102,7 +102,7 @@ ENTRY(startup_32)
          * don't we'll eventually crash trying to execute encrypted
          * instructions.
          */
-        bt      $TH_FLAGS_SME_ACTIVE_BIT, pa_tr_flags
+        btl     $TH_FLAGS_SME_ACTIVE_BIT, pa_tr_flags
         jnc     .Ldone
         movl    $MSR_K8_SYSCFG, %ecx
         rdmsr
diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
index 5d73c443e778..220e97841e49 100644
--- a/arch/x86/tools/relocs.c
+++ b/arch/x86/tools/relocs.c
@@ -770,9 +770,12 @@ static int do_reloc64(struct section *sec, Elf_Rel *rel, ElfW(Sym) *sym,
                 break;
 
         case R_X86_64_PC32:
+        case R_X86_64_PLT32:
                 /*
                  * PC relative relocations don't need to be adjusted unless
                  * referencing a percpu symbol.
+                 *
+                 * NB: R_X86_64_PLT32 can be treated as R_X86_64_PC32.
                  */
                 if (is_percpu_sym(sym, symname))
                         add_reloc(&relocs32neg, offset);
diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h
index b7d73400ea29..f31e5d903161 100644
--- a/arch/x86/um/asm/barrier.h
+++ b/arch/x86/um/asm/barrier.h
@@ -30,11 +30,7 @@
 
 #endif /* CONFIG_X86_32 */
 
-#ifdef CONFIG_X86_PPRO_FENCE
-#define dma_rmb()       rmb()
-#else /* CONFIG_X86_PPRO_FENCE */
 #define dma_rmb()       barrier()
-#endif /* CONFIG_X86_PPRO_FENCE */
 #define dma_wmb()       barrier()
 
 #include <asm-generic/barrier.h>
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index c047f42552e1..3c2c2530737e 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1376,8 +1376,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
 
         if (!xen_initial_domain()) {
                 add_preferred_console("xenboot", 0, NULL);
-                add_preferred_console("tty", 0, NULL);
-                add_preferred_console("hvc", 0, NULL);
                 if (pci_xen)
                         x86_init.pci.arch_init = pci_xen_init;
         } else {
@@ -1410,6 +1408,10 @@ asmlinkage __visible void __init xen_start_kernel(void)
 
                 xen_boot_params_init_edd();
         }
+
+        add_preferred_console("tty", 0, NULL);
+        add_preferred_console("hvc", 0, NULL);
+
 #ifdef CONFIG_PCI
         /* PCI BIOS service won't work from a PV guest. */
         pci_probe &= ~PCI_PROBE_BIOS;
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index d85076223a69..aae88fec9941 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -1300,12 +1300,12 @@ static void xen_flush_tlb(void)
         preempt_enable();
 }
 
-static void xen_flush_tlb_single(unsigned long addr)
+static void xen_flush_tlb_one_user(unsigned long addr)
 {
         struct mmuext_op *op;
         struct multicall_space mcs;
 
-        trace_xen_mmu_flush_tlb_single(addr);
+        trace_xen_mmu_flush_tlb_one_user(addr);
 
         preempt_disable();
 
@@ -2370,7 +2370,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
 
         .flush_tlb_user = xen_flush_tlb,
         .flush_tlb_kernel = xen_flush_tlb,
-        .flush_tlb_single = xen_flush_tlb_single,
+        .flush_tlb_one_user = xen_flush_tlb_one_user,
         .flush_tlb_others = xen_flush_tlb_others,
 
         .pgd_alloc = xen_pgd_alloc,
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 77c959cf81e7..7a43b2ae19f1 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -122,6 +122,8 @@ void __init xen_smp_cpus_done(unsigned int max_cpus)
 
         if (xen_hvm_domain())
                 native_smp_cpus_done(max_cpus);
+        else
+                calculate_max_logical_packages();
 
         if (xen_have_vcpu_info_placement)
                 return;
diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c
index d9f96cc5d743..1d83152c761b 100644
--- a/arch/x86/xen/suspend.c
+++ b/arch/x86/xen/suspend.c
@@ -1,12 +1,15 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/tick.h>
+#include <linux/percpu-defs.h>
 
 #include <xen/xen.h>
 #include <xen/interface/xen.h>
 #include <xen/grant_table.h>
 #include <xen/events.h>
 
+#include <asm/cpufeatures.h>
+#include <asm/msr-index.h>
 #include <asm/xen/hypercall.h>
 #include <asm/xen/page.h>
 #include <asm/fixmap.h>
@@ -15,6 +18,8 @@
 #include "mmu.h"
 #include "pmu.h"
 
+static DEFINE_PER_CPU(u64, spec_ctrl);
+
 void xen_arch_pre_suspend(void)
 {
         xen_save_time_memory_area();
@@ -35,6 +40,9 @@ void xen_arch_post_suspend(int cancelled)
 
 static void xen_vcpu_notify_restore(void *data)
 {
+        if (xen_pv_domain() && boot_cpu_has(X86_FEATURE_SPEC_CTRL))
+                wrmsrl(MSR_IA32_SPEC_CTRL, this_cpu_read(spec_ctrl));
+
         /* Boot processor notified via generic timekeeping_resume() */
         if (smp_processor_id() == 0)
                 return;
@@ -44,7 +52,15 @@ static void xen_vcpu_notify_restore(void *data)
 
 static void xen_vcpu_notify_suspend(void *data)
 {
+        u64 tmp;
+
         tick_suspend_local();
+
+        if (xen_pv_domain() && boot_cpu_has(X86_FEATURE_SPEC_CTRL)) {
+                rdmsrl(MSR_IA32_SPEC_CTRL, tmp);
+                this_cpu_write(spec_ctrl, tmp);
+                wrmsrl(MSR_IA32_SPEC_CTRL, 0);
+        }
 }
 
 void xen_arch_resume(void)
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 623720a11143..732631ce250f 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -16,6 +16,7 @@
  */
 
 #include <linux/dma-contiguous.h>
+#include <linux/dma-direct.h>
 #include <linux/gfp.h>
 #include <linux/highmem.h>
 #include <linux/mm.h>
@@ -123,7 +124,7 @@ static void *xtensa_dma_alloc(struct device *dev, size_t size,
                               unsigned long attrs)
 {
         unsigned long ret;
-        unsigned long uncached = 0;
+        unsigned long uncached;
         unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
         struct page *page = NULL;
 
@@ -144,15 +145,27 @@ static void *xtensa_dma_alloc(struct device *dev, size_t size,
         if (!page)
                 return NULL;
 
-        ret = (unsigned long)page_address(page);
+        *handle = phys_to_dma(dev, page_to_phys(page));
 
-        /* We currently don't support coherent memory outside KSEG */
+#ifdef CONFIG_MMU
+        if (PageHighMem(page)) {
+                void *p;
 
+                p = dma_common_contiguous_remap(page, size, VM_MAP,
+                                                pgprot_noncached(PAGE_KERNEL),
+                                                __builtin_return_address(0));
+                if (!p) {
+                        if (!dma_release_from_contiguous(dev, page, count))
+                                __free_pages(page, get_order(size));
+                }
+                return p;
+        }
+#endif
+        ret = (unsigned long)page_address(page);
         BUG_ON(ret < XCHAL_KSEG_CACHED_VADDR ||
                ret > XCHAL_KSEG_CACHED_VADDR + XCHAL_KSEG_SIZE - 1);
 
         uncached = ret + XCHAL_KSEG_BYPASS_VADDR - XCHAL_KSEG_CACHED_VADDR;
-        *handle = virt_to_bus((void *)ret);
         __invalidate_dcache_range(ret, size);
 
         return (void *)uncached;
@@ -161,13 +174,20 @@ static void *xtensa_dma_alloc(struct device *dev, size_t size,
 static void xtensa_dma_free(struct device *dev, size_t size, void *vaddr,
                             dma_addr_t dma_handle, unsigned long attrs)
 {
-        unsigned long addr = (unsigned long)vaddr +
-                XCHAL_KSEG_CACHED_VADDR - XCHAL_KSEG_BYPASS_VADDR;
-        struct page *page = virt_to_page(addr);
         unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
-
-        BUG_ON(addr < XCHAL_KSEG_CACHED_VADDR ||
-               addr > XCHAL_KSEG_CACHED_VADDR + XCHAL_KSEG_SIZE - 1);
+        unsigned long addr = (unsigned long)vaddr;
+        struct page *page;
+
+        if (addr >= XCHAL_KSEG_BYPASS_VADDR &&
+            addr - XCHAL_KSEG_BYPASS_VADDR < XCHAL_KSEG_SIZE) {
+                addr += XCHAL_KSEG_CACHED_VADDR - XCHAL_KSEG_BYPASS_VADDR;
+                page = virt_to_page(addr);
+        } else {
+#ifdef CONFIG_MMU
+                dma_common_free_remap(vaddr, size, VM_MAP);
+#endif
+                page = pfn_to_page(PHYS_PFN(dma_to_phys(dev, dma_handle)));
+        }
 
         if (!dma_release_from_contiguous(dev, page, count))
                 __free_pages(page, get_order(size));
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index d776ec0d7b22..34aead7dcb48 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -79,19 +79,75 @@ void __init zones_init(void)
         free_area_init_node(0, zones_size, ARCH_PFN_OFFSET, NULL);
 }
 
+#ifdef CONFIG_HIGHMEM
+static void __init free_area_high(unsigned long pfn, unsigned long end)
+{
+        for (; pfn < end; pfn++)
+                free_highmem_page(pfn_to_page(pfn));
+}
+
+static void __init free_highpages(void)
+{
+        unsigned long max_low = max_low_pfn;
+        struct memblock_region *mem, *res;
+
+        reset_all_zones_managed_pages();
+        /* set highmem page free */
+        for_each_memblock(memory, mem) {
+                unsigned long start = memblock_region_memory_base_pfn(mem);
+                unsigned long end = memblock_region_memory_end_pfn(mem);
+
+                /* Ignore complete lowmem entries */
+                if (end <= max_low)
+                        continue;
+
+                if (memblock_is_nomap(mem))
+                        continue;
+
+                /* Truncate partial highmem entries */
+                if (start < max_low)
+                        start = max_low;
+
+                /* Find and exclude any reserved regions */
+                for_each_memblock(reserved, res) {
+                        unsigned long res_start, res_end;
+
+                        res_start = memblock_region_reserved_base_pfn(res);
+                        res_end = memblock_region_reserved_end_pfn(res);
+
+                        if (res_end < start)
+                                continue;
+                        if (res_start < start)
+                                res_start = start;
+                        if (res_start > end)
+                                res_start = end;
+                        if (res_end > end)
+                                res_end = end;
+                        if (res_start != start)
+                                free_area_high(start, res_start);
+                        start = res_end;
+                        if (start == end)
+                                break;
+                }
+
+                /* And now free anything which remains */
+                if (start < end)
+                        free_area_high(start, end);
+        }
+}
+#else
+static void __init free_highpages(void)
+{
+}
+#endif
+
 /*
  * Initialize memory pages.
  */
 
 void __init mem_init(void)
 {
-#ifdef CONFIG_HIGHMEM
-        unsigned long tmp;
-
-        reset_all_zones_managed_pages();
-        for (tmp = max_low_pfn; tmp < max_pfn; tmp++)
-                free_highmem_page(pfn_to_page(tmp));
-#endif
+        free_highpages();
 
         max_mapnr = max_pfn - ARCH_PFN_OFFSET;
         high_memory = (void *)__va(max_low_pfn << PAGE_SHIFT);
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 4117524ca45b..c2033a232a44 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -812,7 +812,6 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol,
         struct gendisk *disk;
         struct request_queue *q;
         struct blkcg_gq *blkg;
-        struct module *owner;
         unsigned int major, minor;
         int key_len, part, ret;
         char *body;
@@ -904,9 +903,7 @@ fail_unlock:
         spin_unlock_irq(q->queue_lock);
         rcu_read_unlock();
 fail:
-        owner = disk->fops->owner;
-        put_disk(disk);
-        module_put(owner);
+        put_disk_and_module(disk);
         /*
          * If queue was bypassing, we should retry.  Do so after a
          * short msleep().  It isn't strictly necessary but queue
@@ -931,13 +928,9 @@ EXPORT_SYMBOL_GPL(blkg_conf_prep);
 void blkg_conf_finish(struct blkg_conf_ctx *ctx)
         __releases(ctx->disk->queue->queue_lock) __releases(rcu)
 {
-        struct module *owner;
-
         spin_unlock_irq(ctx->disk->queue->queue_lock);
         rcu_read_unlock();
-        owner = ctx->disk->fops->owner;
-        put_disk(ctx->disk);
-        module_put(owner);
+        put_disk_and_module(ctx->disk);
 }
 EXPORT_SYMBOL_GPL(blkg_conf_finish);
 
diff --git a/block/blk-core.c b/block/blk-core.c
index 2d1a7bbe0634..6d82c4f7fadd 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2434,7 +2434,7 @@ blk_qc_t submit_bio(struct bio *bio)
                 unsigned int count;
 
                 if (unlikely(bio_op(bio) == REQ_OP_WRITE_SAME))
-                        count = queue_logical_block_size(bio->bi_disk->queue);
+                        count = queue_logical_block_size(bio->bi_disk->queue) >> 9;
                 else
                         count = bio_sectors(bio);
 
diff --git a/block/blk-mq.c b/block/blk-mq.c
index df93102e2149..16e83e6df404 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -712,7 +712,6 @@ static void __blk_mq_requeue_request(struct request *rq)
 
         trace_block_rq_requeue(q, rq);
         wbt_requeue(q->rq_wb, &rq->issue_stat);
-        blk_mq_sched_requeue_request(rq);
 
         if (blk_mq_rq_state(rq) != MQ_RQ_IDLE) {
                 blk_mq_rq_update_state(rq, MQ_RQ_IDLE);
@@ -725,6 +724,9 @@ void blk_mq_requeue_request(struct request *rq, bool kick_requeue_list)
 {
         __blk_mq_requeue_request(rq);
 
+        /* this request will be re-inserted to io scheduler queue */
+        blk_mq_sched_requeue_request(rq);
+
         BUG_ON(blk_queued_rq(rq));
         blk_mq_add_to_requeue_list(rq, true, kick_requeue_list);
 }
@@ -3164,6 +3166,7 @@ static bool __blk_mq_poll(struct blk_mq_hw_ctx *hctx, struct request *rq)
                 cpu_relax();
         }
 
+        __set_current_state(TASK_RUNNING);
         return false;
 }
 
diff --git a/block/genhd.c b/block/genhd.c
index 88a53c188cb7..9656f9e9f99e 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -547,7 +547,7 @@ static int exact_lock(dev_t devt, void *data)
 {
         struct gendisk *p = data;
 
-        if (!get_disk(p))
+        if (!get_disk_and_module(p))
                 return -1;
         return 0;
 }
@@ -717,6 +717,11 @@ void del_gendisk(struct gendisk *disk)
         blk_integrity_del(disk);
         disk_del_events(disk);
 
+        /*
+         * Block lookups of the disk until all bdevs are unhashed and the
+         * disk is marked as dead (GENHD_FL_UP cleared).
+         */
+        down_write(&disk->lookup_sem);
         /* invalidate stuff */
         disk_part_iter_init(&piter, disk,
                              DISK_PITER_INCL_EMPTY | DISK_PITER_REVERSE);
@@ -731,6 +736,7 @@ void del_gendisk(struct gendisk *disk)
         bdev_unhash_inode(disk_devt(disk));
         set_capacity(disk, 0);
         disk->flags &= ~GENHD_FL_UP;
+        up_write(&disk->lookup_sem);
 
         if (!(disk->flags & GENHD_FL_HIDDEN))
                 sysfs_remove_link(&disk_to_dev(disk)->kobj, "bdi");
@@ -809,16 +815,28 @@ struct gendisk *get_gendisk(dev_t devt, int *partno)
 
                 spin_lock_bh(&ext_devt_lock);
                 part = idr_find(&ext_devt_idr, blk_mangle_minor(MINOR(devt)));
-                if (part && get_disk(part_to_disk(part))) {
+                if (part && get_disk_and_module(part_to_disk(part))) {
                         *partno = part->partno;
                         disk = part_to_disk(part);
                 }
                 spin_unlock_bh(&ext_devt_lock);
         }
 
-        if (disk && unlikely(disk->flags & GENHD_FL_HIDDEN)) {
-                put_disk(disk);
+        if (!disk)
+                return NULL;
+
+        /*
+         * Synchronize with del_gendisk() to not return disk that is being
+         * destroyed.
+         */
+        down_read(&disk->lookup_sem);
+        if (unlikely((disk->flags & GENHD_FL_HIDDEN) ||
+                     !(disk->flags & GENHD_FL_UP))) {
+                up_read(&disk->lookup_sem);
+                put_disk_and_module(disk);
                 disk = NULL;
+        } else {
+                up_read(&disk->lookup_sem);
         }
         return disk;
 }
@@ -1418,6 +1436,7 @@ struct gendisk *__alloc_disk_node(int minors, int node_id)
                         kfree(disk);
                         return NULL;
                 }
+                init_rwsem(&disk->lookup_sem);
                 disk->node_id = node_id;
                 if (disk_expand_part_tbl(disk, 0)) {
                         free_part_stats(&disk->part0);
@@ -1453,7 +1472,7 @@ struct gendisk *__alloc_disk_node(int minors, int node_id)
 }
 EXPORT_SYMBOL(__alloc_disk_node);
 
-struct kobject *get_disk(struct gendisk *disk)
+struct kobject *get_disk_and_module(struct gendisk *disk)
 {
         struct module *owner;
         struct kobject *kobj;
@@ -1471,17 +1490,30 @@ struct kobject *get_disk(struct gendisk *disk)
         return kobj;
 
 }
-
-EXPORT_SYMBOL(get_disk);
+EXPORT_SYMBOL(get_disk_and_module);
 
 void put_disk(struct gendisk *disk)
 {
         if (disk)
                 kobject_put(&disk_to_dev(disk)->kobj);
 }
-
 EXPORT_SYMBOL(put_disk);
 
+/*
+ * This is a counterpart of get_disk_and_module() and thus also of
+ * get_gendisk().
+ */
+void put_disk_and_module(struct gendisk *disk)
+{
+        if (disk) {
+                struct module *owner = disk->fops->owner;
+
+                put_disk(disk);
+                module_put(owner);
+        }
+}
+EXPORT_SYMBOL(put_disk_and_module);
+
 static void set_disk_ro_uevent(struct gendisk *gd, int ro)
 {
         char event[] = "DISK_RO=1";
diff --git a/block/ioctl.c b/block/ioctl.c
index 1668506d8ed8..3884d810efd2 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -225,7 +225,7 @@ static int blk_ioctl_discard(struct block_device *bdev, fmode_t mode,
 
         if (start + len > i_size_read(bdev->bd_inode))
                 return -EINVAL;
-        truncate_inode_pages_range(mapping, start, start + len);
+        truncate_inode_pages_range(mapping, start, start + len - 1);
         return blkdev_issue_discard(bdev, start >> 9, len >> 9,
                                     GFP_KERNEL, flags);
 }
diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c
index f95c60774ce8..0d6d25e32e1f 100644
--- a/block/kyber-iosched.c
+++ b/block/kyber-iosched.c
@@ -833,6 +833,7 @@ static struct elevator_type kyber_sched = {
                 .limit_depth = kyber_limit_depth,
                 .prepare_request = kyber_prepare_request,
                 .finish_request = kyber_finish_request,
+                .requeue_request = kyber_finish_request,
                 .completed_request = kyber_completed_request,
                 .dispatch_request = kyber_dispatch_request,
                 .has_work = kyber_has_work,
diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index c56f211c8440..8ec0ba9f5386 100644
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -536,12 +536,21 @@ static void dd_insert_requests(struct blk_mq_hw_ctx *hctx,
 }
 
 /*
+ * Nothing to do here. This is defined only to ensure that .finish_request
+ * method is called upon request completion.
+ */
+static void dd_prepare_request(struct request *rq, struct bio *bio)
+{
+}
+
+/*
  * For zoned block devices, write unlock the target zone of
  * completed write requests. Do this while holding the zone lock
  * spinlock so that the zone is never unlocked while deadline_fifo_request()
- * while deadline_next_request() are executing.
+ * or deadline_next_request() are executing. This function is called for
+ * all requests, whether or not these requests complete successfully.
  */
-static void dd_completed_request(struct request *rq)
+static void dd_finish_request(struct request *rq)
 {
         struct request_queue *q = rq->q;
 
@@ -756,7 +765,8 @@ static struct elevator_type mq_deadline = {
         .ops.mq = {
                 .insert_requests        = dd_insert_requests,
                 .dispatch_request       = dd_dispatch_request,
-                .completed_request      = dd_completed_request,
+                .prepare_request        = dd_prepare_request,
+                .finish_request         = dd_finish_request,
                 .next_request           = elv_rb_latter_request,
                 .former_request         = elv_rb_former_request,
                 .bio_merge              = dd_bio_merge,
diff --git a/block/partition-generic.c b/block/partition-generic.c
index 91622db9aedf..08dabcd8b6ae 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -51,6 +51,12 @@ const char *bdevname(struct block_device *bdev, char *buf)
 
 EXPORT_SYMBOL(bdevname);
 
+const char *bio_devname(struct bio *bio, char *buf)
+{
+        return disk_name(bio->bi_disk, bio->bi_partno, buf);
+}
+EXPORT_SYMBOL(bio_devname);
+
 /*
  * There's very little reason to use this, you should really
  * have a struct block_device just about everywhere and use
diff --git a/block/sed-opal.c b/block/sed-opal.c
index 9ed51d0c6b1d..e4929eec547f 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c
@@ -490,7 +490,7 @@ static int opal_discovery0_end(struct opal_dev *dev)
 
         if (!found_com_id) {
                 pr_debug("Could not find OPAL comid for device. Returning early\n");
-                return -EOPNOTSUPP;;
+                return -EOPNOTSUPP;
         }
 
         dev->comid = comid;
diff --git a/certs/blacklist_nohashes.c b/certs/blacklist_nohashes.c
index 73fd99098ad7..753b703ef0ef 100644
--- a/certs/blacklist_nohashes.c
+++ b/certs/blacklist_nohashes.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "blacklist.h"
 
-const char __initdata *const blacklist_hashes[] = {
+const char __initconst *const blacklist_hashes[] = {
         NULL
 };
diff --git a/crypto/asymmetric_keys/pkcs7_trust.c b/crypto/asymmetric_keys/pkcs7_trust.c
index 1f4e25f10049..598906b1e28d 100644
--- a/crypto/asymmetric_keys/pkcs7_trust.c
+++ b/crypto/asymmetric_keys/pkcs7_trust.c
@@ -106,6 +106,7 @@ static int pkcs7_validate_trust_one(struct pkcs7_message *pkcs7,
                 pr_devel("sinfo %u: Direct signer is key %x\n",
                          sinfo->index, key_serial(key));
                 x509 = NULL;
+                sig = sinfo->sig;
                 goto matched;
         }
         if (PTR_ERR(key) != -ENOKEY)
diff --git a/crypto/asymmetric_keys/pkcs7_verify.c b/crypto/asymmetric_keys/pkcs7_verify.c
index 39e6de0c2761..97c77f66b20d 100644
--- a/crypto/asymmetric_keys/pkcs7_verify.c
+++ b/crypto/asymmetric_keys/pkcs7_verify.c
@@ -270,7 +270,7 @@ static int pkcs7_verify_sig_chain(struct pkcs7_message *pkcs7,
                                 sinfo->index);
                         return 0;
                 }
-                ret = public_key_verify_signature(p->pub, p->sig);
+                ret = public_key_verify_signature(p->pub, x509->sig);
                 if (ret < 0)
                         return ret;
                 x509->signer = p;
@@ -366,8 +366,7 @@ static int pkcs7_verify_one(struct pkcs7_message *pkcs7,
  *
  *  (*) -EBADMSG if some part of the message was invalid, or:
  *
- *  (*) 0 if no signature chains were found to be blacklisted or to contain
- *      unsupported crypto, or:
+ *  (*) 0 if a signature chain passed verification, or:
  *
  *  (*) -EKEYREJECTED if a blacklisted key was encountered, or:
  *
@@ -423,8 +422,11 @@ int pkcs7_verify(struct pkcs7_message *pkcs7,
 
         for (sinfo = pkcs7->signed_infos; sinfo; sinfo = sinfo->next) {
                 ret = pkcs7_verify_one(pkcs7, sinfo);
-                if (sinfo->blacklisted && actual_ret == -ENOPKG)
-                        actual_ret = -EKEYREJECTED;
+                if (sinfo->blacklisted) {
+                        if (actual_ret == -ENOPKG)
+                                actual_ret = -EKEYREJECTED;
+                        continue;
+                }
                 if (ret < 0) {
                         if (ret == -ENOPKG) {
                                 sinfo->unsupported_crypto = true;
diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index de996586762a..e929fe1e4106 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
@@ -79,9 +79,11 @@ int public_key_verify_signature(const struct public_key *pkey,
 
         BUG_ON(!pkey);
         BUG_ON(!sig);
-        BUG_ON(!sig->digest);
         BUG_ON(!sig->s);
 
+        if (!sig->digest)
+                return -ENOPKG;
+
         alg_name = sig->pkey_algo;
         if (strcmp(sig->pkey_algo, "rsa") == 0) {
                 /* The data wangled by the RSA algorithm is typically padded
diff --git a/crypto/asymmetric_keys/restrict.c b/crypto/asymmetric_keys/restrict.c
index 86fb68508952..7c93c7728454 100644
--- a/crypto/asymmetric_keys/restrict.c
+++ b/crypto/asymmetric_keys/restrict.c
@@ -67,8 +67,9 @@ __setup("ca_keys=", ca_keys_setup);
  *
  * Returns 0 if the new certificate was accepted, -ENOKEY if we couldn't find a
  * matching parent certificate in the trusted list, -EKEYREJECTED if the
- * signature check fails or the key is blacklisted and some other error if
- * there is a matching certificate but the signature check cannot be performed.
+ * signature check fails or the key is blacklisted, -ENOPKG if the signature
+ * uses unsupported crypto, or some other error if there is a matching
+ * certificate but the signature check cannot be performed.
  */
 int restrict_link_by_signature(struct key *dest_keyring,
                                const struct key_type *type,
@@ -88,6 +89,8 @@ int restrict_link_by_signature(struct key *dest_keyring,
                 return -EOPNOTSUPP;
 
         sig = payload->data[asym_auth];
+        if (!sig)
+                return -ENOPKG;
         if (!sig->auth_ids[0] && !sig->auth_ids[1])
                 return -ENOKEY;
 
@@ -139,6 +142,8 @@ static int key_or_keyring_common(struct key *dest_keyring,
                 return -EOPNOTSUPP;
 
         sig = payload->data[asym_auth];
+        if (!sig)
+                return -ENOPKG;
         if (!sig->auth_ids[0] && !sig->auth_ids[1])
                 return -ENOKEY;
 
@@ -222,9 +227,9 @@ static int key_or_keyring_common(struct key *dest_keyring,
  *
  * Returns 0 if the new certificate was accepted, -ENOKEY if we
  * couldn't find a matching parent certificate in the trusted list,
- * -EKEYREJECTED if the signature check fails, and some other error if
- * there is a matching certificate but the signature check cannot be
- * performed.
+ * -EKEYREJECTED if the signature check fails, -ENOPKG if the signature uses
+ * unsupported crypto, or some other error if there is a matching certificate
+ * but the signature check cannot be performed.
  */
 int restrict_link_by_key_or_keyring(struct key *dest_keyring,
                                     const struct key_type *type,
@@ -249,9 +254,9 @@ int restrict_link_by_key_or_keyring(struct key *dest_keyring,
  *
  * Returns 0 if the new certificate was accepted, -ENOKEY if we
  * couldn't find a matching parent certificate in the trusted list,
- * -EKEYREJECTED if the signature check fails, and some other error if
- * there is a matching certificate but the signature check cannot be
- * performed.
+ * -EKEYREJECTED if the signature check fails, -ENOPKG if the signature uses
+ * unsupported crypto, or some other error if there is a matching certificate
+ * but the signature check cannot be performed.
  */
 int restrict_link_by_key_or_keyring_chain(struct key *dest_keyring,
                                           const struct key_type *type,
diff --git a/crypto/sha3_generic.c b/crypto/sha3_generic.c
index a965b9d80559..ded148783303 100644
--- a/crypto/sha3_generic.c
+++ b/crypto/sha3_generic.c
@@ -20,6 +20,20 @@
 #include <crypto/sha3.h>
 #include <asm/unaligned.h>
 
+/*
+ * On some 32-bit architectures (mn10300 and h8300), GCC ends up using
+ * over 1 KB of stack if we inline the round calculation into the loop
+ * in keccakf(). On the other hand, on 64-bit architectures with plenty
+ * of [64-bit wide] general purpose registers, not inlining it severely
+ * hurts performance. So let's use 64-bitness as a heuristic to decide
+ * whether to inline or not.
+ */
+#ifdef CONFIG_64BIT
+#define SHA3_INLINE     inline
+#else
+#define SHA3_INLINE     noinline
+#endif
+
 #define KECCAK_ROUNDS 24
 
 static const u64 keccakf_rndc[24] = {
@@ -35,111 +49,115 @@ static const u64 keccakf_rndc[24] = {
 
 /* update the state with given number of rounds */
 
-static void __attribute__((__optimize__("O3"))) keccakf(u64 st[25])
+static SHA3_INLINE void keccakf_round(u64 st[25])
 {
         u64 t[5], tt, bc[5];
-        int round;
 
-        for (round = 0; round < KECCAK_ROUNDS; round++) {
+        /* Theta */
+        bc[0] = st[0] ^ st[5] ^ st[10] ^ st[15] ^ st[20];
+        bc[1] = st[1] ^ st[6] ^ st[11] ^ st[16] ^ st[21];
+        bc[2] = st[2] ^ st[7] ^ st[12] ^ st[17] ^ st[22];
+        bc[3] = st[3] ^ st[8] ^ st[13] ^ st[18] ^ st[23];
+        bc[4] = st[4] ^ st[9] ^ st[14] ^ st[19] ^ st[24];
+
+        t[0] = bc[4] ^ rol64(bc[1], 1);
+        t[1] = bc[0] ^ rol64(bc[2], 1);
+        t[2] = bc[1] ^ rol64(bc[3], 1);
+        t[3] = bc[2] ^ rol64(bc[4], 1);
+        t[4] = bc[3] ^ rol64(bc[0], 1);
+
+        st[0] ^= t[0];
+
+        /* Rho Pi */
+        tt = st[1];
+        st[ 1] = rol64(st[ 6] ^ t[1], 44);
+        st[ 6] = rol64(st[ 9] ^ t[4], 20);
+        st[ 9] = rol64(st[22] ^ t[2], 61);
+        st[22] = rol64(st[14] ^ t[4], 39);
+        st[14] = rol64(st[20] ^ t[0], 18);
+        st[20] = rol64(st[ 2] ^ t[2], 62);
+        st[ 2] = rol64(st[12] ^ t[2], 43);
+        st[12] = rol64(st[13] ^ t[3], 25);
+        st[13] = rol64(st[19] ^ t[4],  8);
+        st[19] = rol64(st[23] ^ t[3], 56);
+        st[23] = rol64(st[15] ^ t[0], 41);
+        st[15] = rol64(st[ 4] ^ t[4], 27);
+        st[ 4] = rol64(st[24] ^ t[4], 14);
+        st[24] = rol64(st[21] ^ t[1],  2);
+        st[21] = rol64(st[ 8] ^ t[3], 55);
+        st[ 8] = rol64(st[16] ^ t[1], 45);
+        st[16] = rol64(st[ 5] ^ t[0], 36);
+        st[ 5] = rol64(st[ 3] ^ t[3], 28);
+        st[ 3] = rol64(st[18] ^ t[3], 21);
+        st[18] = rol64(st[17] ^ t[2], 15);
+        st[17] = rol64(st[11] ^ t[1], 10);
+        st[11] = rol64(st[ 7] ^ t[2],  6);
+        st[ 7] = rol64(st[10] ^ t[0],  3);
+        st[10] = rol64(    tt ^ t[1],  1);
+
+        /* Chi */
+        bc[ 0] = ~st[ 1] & st[ 2];
+        bc[ 1] = ~st[ 2] & st[ 3];
+        bc[ 2] = ~st[ 3] & st[ 4];
+        bc[ 3] = ~st[ 4] & st[ 0];
+        bc[ 4] = ~st[ 0] & st[ 1];
+        st[ 0] ^= bc[ 0];
+        st[ 1] ^= bc[ 1];
+        st[ 2] ^= bc[ 2];
+        st[ 3] ^= bc[ 3];
+        st[ 4] ^= bc[ 4];
+
+        bc[ 0] = ~st[ 6] & st[ 7];
+        bc[ 1] = ~st[ 7] & st[ 8];
+        bc[ 2] = ~st[ 8] & st[ 9];
+        bc[ 3] = ~st[ 9] & st[ 5];
+        bc[ 4] = ~st[ 5] & st[ 6];
+        st[ 5] ^= bc[ 0];
+        st[ 6] ^= bc[ 1];
+        st[ 7] ^= bc[ 2];
+        st[ 8] ^= bc[ 3];
+        st[ 9] ^= bc[ 4];
+
+        bc[ 0] = ~st[11] & st[12];
+        bc[ 1] = ~st[12] & st[13];
+        bc[ 2] = ~st[13] & st[14];
+        bc[ 3] = ~st[14] & st[10];
+        bc[ 4] = ~st[10] & st[11];
+        st[10] ^= bc[ 0];
+        st[11] ^= bc[ 1];
+        st[12] ^= bc[ 2];
+        st[13] ^= bc[ 3];
+        st[14] ^= bc[ 4];
+
+        bc[ 0] = ~st[16] & st[17];
+        bc[ 1] = ~st[17] & st[18];
+        bc[ 2] = ~st[18] & st[19];
+        bc[ 3] = ~st[19] & st[15];
+        bc[ 4] = ~st[15] & st[16];
+        st[15] ^= bc[ 0];
+        st[16] ^= bc[ 1];
+        st[17] ^= bc[ 2];
+        st[18] ^= bc[ 3];
+        st[19] ^= bc[ 4];
+
+        bc[ 0] = ~st[21] & st[22];
+        bc[ 1] = ~st[22] & st[23];
+        bc[ 2] = ~st[23] & st[24];
+        bc[ 3] = ~st[24] & st[20];
+        bc[ 4] = ~st[20] & st[21];
+        st[20] ^= bc[ 0];
+        st[21] ^= bc[ 1];
+        st[22] ^= bc[ 2];
+        st[23] ^= bc[ 3];
+        st[24] ^= bc[ 4];
+}
 
-                /* Theta */
-                bc[0] = st[0] ^ st[5] ^ st[10] ^ st[15] ^ st[20];
-                bc[1] = st[1] ^ st[6] ^ st[11] ^ st[16] ^ st[21];
-                bc[2] = st[2] ^ st[7] ^ st[12] ^ st[17] ^ st[22];
-                bc[3] = st[3] ^ st[8] ^ st[13] ^ st[18] ^ st[23];
-                bc[4] = st[4] ^ st[9] ^ st[14] ^ st[19] ^ st[24];
-
-                t[0] = bc[4] ^ rol64(bc[1], 1);
-                t[1] = bc[0] ^ rol64(bc[2], 1);
-                t[2] = bc[1] ^ rol64(bc[3], 1);
-                t[3] = bc[2] ^ rol64(bc[4], 1);
-                t[4] = bc[3] ^ rol64(bc[0], 1);
-
-                st[0] ^= t[0];
-
-                /* Rho Pi */
-                tt = st[1];
-                st[ 1] = rol64(st[ 6] ^ t[1], 44);
-                st[ 6] = rol64(st[ 9] ^ t[4], 20);
-                st[ 9] = rol64(st[22] ^ t[2], 61);
-                st[22] = rol64(st[14] ^ t[4], 39);
-                st[14] = rol64(st[20] ^ t[0], 18);
-                st[20] = rol64(st[ 2] ^ t[2], 62);
-                st[ 2] = rol64(st[12] ^ t[2], 43);
-                st[12] = rol64(st[13] ^ t[3], 25);
-                st[13] = rol64(st[19] ^ t[4],  8);
-                st[19] = rol64(st[23] ^ t[3], 56);
-                st[23] = rol64(st[15] ^ t[0], 41);
-                st[15] = rol64(st[ 4] ^ t[4], 27);
-                st[ 4] = rol64(st[24] ^ t[4], 14);
-                st[24] = rol64(st[21] ^ t[1],  2);
-                st[21] = rol64(st[ 8] ^ t[3], 55);
-                st[ 8] = rol64(st[16] ^ t[1], 45);
-                st[16] = rol64(st[ 5] ^ t[0], 36);
-                st[ 5] = rol64(st[ 3] ^ t[3], 28);
-                st[ 3] = rol64(st[18] ^ t[3], 21);
-                st[18] = rol64(st[17] ^ t[2], 15);
-                st[17] = rol64(st[11] ^ t[1], 10);
-                st[11] = rol64(st[ 7] ^ t[2],  6);
-                st[ 7] = rol64(st[10] ^ t[0],  3);
-                st[10] = rol64(    tt ^ t[1],  1);
-
-                /* Chi */
-                bc[ 0] = ~st[ 1] & st[ 2];
-                bc[ 1] = ~st[ 2] & st[ 3];
-                bc[ 2] = ~st[ 3] & st[ 4];
-                bc[ 3] = ~st[ 4] & st[ 0];
-                bc[ 4] = ~st[ 0] & st[ 1];
-                st[ 0] ^= bc[ 0];
-                st[ 1] ^= bc[ 1];
-                st[ 2] ^= bc[ 2];
-                st[ 3] ^= bc[ 3];
-                st[ 4] ^= bc[ 4];
-
-                bc[ 0] = ~st[ 6] & st[ 7];
-                bc[ 1] = ~st[ 7] & st[ 8];
-                bc[ 2] = ~st[ 8] & st[ 9];
-                bc[ 3] = ~st[ 9] & st[ 5];
-                bc[ 4] = ~st[ 5] & st[ 6];
-                st[ 5] ^= bc[ 0];
-                st[ 6] ^= bc[ 1];
-                st[ 7] ^= bc[ 2];
-                st[ 8] ^= bc[ 3];
-                st[ 9] ^= bc[ 4];
-
-                bc[ 0] = ~st[11] & st[12];
-                bc[ 1] = ~st[12] & st[13];
-                bc[ 2] = ~st[13] & st[14];
-                bc[ 3] = ~st[14] & st[10];
-                bc[ 4] = ~st[10] & st[11];
-                st[10] ^= bc[ 0];
-                st[11] ^= bc[ 1];
-                st[12] ^= bc[ 2];
-                st[13] ^= bc[ 3];
-                st[14] ^= bc[ 4];
-
-                bc[ 0] = ~st[16] & st[17];
-                bc[ 1] = ~st[17] & st[18];
-                bc[ 2] = ~st[18] & st[19];
-                bc[ 3] = ~st[19] & st[15];
-                bc[ 4] = ~st[15] & st[16];
-                st[15] ^= bc[ 0];
-                st[16] ^= bc[ 1];
-                st[17] ^= bc[ 2];
-                st[18] ^= bc[ 3];
-                st[19] ^= bc[ 4];
-
-                bc[ 0] = ~st[21] & st[22];
-                bc[ 1] = ~st[22] & st[23];
-                bc[ 2] = ~st[23] & st[24];
-                bc[ 3] = ~st[24] & st[20];
-                bc[ 4] = ~st[20] & st[21];
-                st[20] ^= bc[ 0];
-                st[21] ^= bc[ 1];
-                st[22] ^= bc[ 2];
-                st[23] ^= bc[ 3];
-                st[24] ^= bc[ 4];
+static void __optimize("O3") keccakf(u64 st[25])
+{
+        int round;
 
+        for (round = 0; round < KECCAK_ROUNDS; round++) {
+                keccakf_round(st);
                 /* Iota */
                 st[0] ^= keccakf_rndc[round];
         }
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index 11b113f8e367..ebb626ffb5fa 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -74,10 +74,10 @@ void __init acpi_watchdog_init(void)
                 res.start = gas->address;
                 if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
                         res.flags = IORESOURCE_MEM;
-                        res.end = res.start + ALIGN(gas->access_width, 4);
+                        res.end = res.start + ALIGN(gas->access_width, 4) - 1;
                 } else if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
                         res.flags = IORESOURCE_IO;
-                        res.end = res.start + gas->access_width;
+                        res.end = res.start + gas->access_width - 1;
                 } else {
                         pr_warn("Unsupported address space: %u\n",
                                 gas->space_id);
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 7128488a3a72..f2eb6c37ea0a 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -70,7 +70,6 @@ static async_cookie_t async_cookie;
 static bool battery_driver_registered;
 static int battery_bix_broken_package;
 static int battery_notification_delay_ms;
-static int battery_full_discharging;
 static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
@@ -215,12 +214,9 @@ static int acpi_battery_get_property(struct power_supply *psy,
                 return -ENODEV;
         switch (psp) {
         case POWER_SUPPLY_PROP_STATUS:
-                if (battery->state & ACPI_BATTERY_STATE_DISCHARGING) {
-                        if (battery_full_discharging && battery->rate_now == 0)
-                                val->intval = POWER_SUPPLY_STATUS_FULL;
-                        else
-                                val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
-                } else if (battery->state & ACPI_BATTERY_STATE_CHARGING)
+                if (battery->state & ACPI_BATTERY_STATE_DISCHARGING)
+                        val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+                else if (battery->state & ACPI_BATTERY_STATE_CHARGING)
                         val->intval = POWER_SUPPLY_STATUS_CHARGING;
                 else if (acpi_battery_is_charged(battery))
                         val->intval = POWER_SUPPLY_STATUS_FULL;
@@ -1170,12 +1166,6 @@ battery_notification_delay_quirk(const struct dmi_system_id *d)
         return 0;
 }
 
-static int __init battery_full_discharging_quirk(const struct dmi_system_id *d)
-{
-        battery_full_discharging = 1;
-        return 0;
-}
-
 static const struct dmi_system_id bat_dmi_table[] __initconst = {
         {
                 .callback = battery_bix_broken_package_quirk,
@@ -1193,38 +1183,6 @@ static const struct dmi_system_id bat_dmi_table[] __initconst = {
                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-573G"),
                 },
         },
-        {
-                .callback = battery_full_discharging_quirk,
-                .ident = "ASUS GL502VSK",
-                .matches = {
-                        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-                        DMI_MATCH(DMI_PRODUCT_NAME, "GL502VSK"),
-                },
-        },
-        {
-                .callback = battery_full_discharging_quirk,
-                .ident = "ASUS UX305LA",
-                .matches = {
-                        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-                        DMI_MATCH(DMI_PRODUCT_NAME, "UX305LA"),
-                },
-        },
-        {
-                .callback = battery_full_discharging_quirk,
-                .ident = "ASUS UX360UA",
-                .matches = {
-                        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-                        DMI_MATCH(DMI_PRODUCT_NAME, "UX360UA"),
-                },
-        },
-        {
-                .callback = battery_full_discharging_quirk,
-                .ident = "ASUS UX410UAK",
-                .matches = {
-                        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-                        DMI_MATCH(DMI_PRODUCT_NAME, "UX410UAK"),
-                },
-        },
         {},
 };
 
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 676c9788e1c8..0dad0bd9327b 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -660,13 +660,15 @@ struct acpi_device *acpi_companion_match(const struct device *dev)
  * acpi_of_match_device - Match device object using the "compatible" property.
  * @adev: ACPI device object to match.
  * @of_match_table: List of device IDs to match against.
+ * @of_id: OF ID if matched
  *
  * If @dev has an ACPI companion which has ACPI_DT_NAMESPACE_HID in its list of
  * identifiers and a _DSD object with the "compatible" property, use that
  * property to match against the given list of identifiers.
  */
 static bool acpi_of_match_device(struct acpi_device *adev,
-                                 const struct of_device_id *of_match_table)
+                                 const struct of_device_id *of_match_table,
+                                 const struct of_device_id **of_id)
 {
         const union acpi_object *of_compatible, *obj;
         int i, nval;
@@ -690,8 +692,11 @@ static bool acpi_of_match_device(struct acpi_device *adev,
                 const struct of_device_id *id;
 
                 for (id = of_match_table; id->compatible[0]; id++)
-                        if (!strcasecmp(obj->string.pointer, id->compatible))
+                        if (!strcasecmp(obj->string.pointer, id->compatible)) {
+                                if (of_id)
+                                        *of_id = id;
                                 return true;
+                        }
         }
 
         return false;
@@ -762,10 +767,11 @@ static bool __acpi_match_device_cls(const struct acpi_device_id *id,
         return true;
 }
 
-static const struct acpi_device_id *__acpi_match_device(
-        struct acpi_device *device,
-        const struct acpi_device_id *ids,
-        const struct of_device_id *of_ids)
+static bool __acpi_match_device(struct acpi_device *device,
+                                const struct acpi_device_id *acpi_ids,
+                                const struct of_device_id *of_ids,
+                                const struct acpi_device_id **acpi_id,
+                                const struct of_device_id **of_id)
 {
         const struct acpi_device_id *id;
         struct acpi_hardware_id *hwid;
@@ -775,30 +781,32 @@ static const struct acpi_device_id *__acpi_match_device(
          * driver for it.
          */
         if (!device || !device->status.present)
-                return NULL;
+                return false;
 
         list_for_each_entry(hwid, &device->pnp.ids, list) {
                 /* First, check the ACPI/PNP IDs provided by the caller. */
-                for (id = ids; id->id[0] || id->cls; id++) {
-                        if (id->id[0] && !strcmp((char *) id->id, hwid->id))
-                                return id;
-                        else if (id->cls && __acpi_match_device_cls(id, hwid))
-                                return id;
+                if (acpi_ids) {
+                        for (id = acpi_ids; id->id[0] || id->cls; id++) {
+                                if (id->id[0] && !strcmp((char *)id->id, hwid->id))
+                                        goto out_acpi_match;
+                                if (id->cls && __acpi_match_device_cls(id, hwid))
+                                        goto out_acpi_match;
+                        }
                 }
 
                 /*
                  * Next, check ACPI_DT_NAMESPACE_HID and try to match the
                  * "compatible" property if found.
-                 *
-                 * The id returned by the below is not valid, but the only
-                 * caller passing non-NULL of_ids here is only interested in
-                 * whether or not the return value is NULL.
                  */
-                if (!strcmp(ACPI_DT_NAMESPACE_HID, hwid->id)
-                    && acpi_of_match_device(device, of_ids))
-                        return id;
+                if (!strcmp(ACPI_DT_NAMESPACE_HID, hwid->id))
+                        return acpi_of_match_device(device, of_ids, of_id);
         }
-        return NULL;
+        return false;
+
+out_acpi_match:
+        if (acpi_id)
+                *acpi_id = id;
+        return true;
 }
 
 /**
@@ -815,32 +823,29 @@ static const struct acpi_device_id *__acpi_match_device(
 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
                                                const struct device *dev)
 {
-        return __acpi_match_device(acpi_companion_match(dev), ids, NULL);
+        const struct acpi_device_id *id = NULL;
+
+        __acpi_match_device(acpi_companion_match(dev), ids, NULL, &id, NULL);
+        return id;
 }
 EXPORT_SYMBOL_GPL(acpi_match_device);
 
-void *acpi_get_match_data(const struct device *dev)
+const void *acpi_device_get_match_data(const struct device *dev)
 {
         const struct acpi_device_id *match;
 
-        if (!dev->driver)
-                return NULL;
-
-        if (!dev->driver->acpi_match_table)
-                return NULL;
-
         match = acpi_match_device(dev->driver->acpi_match_table, dev);
         if (!match)
                 return NULL;
 
-        return (void *)match->driver_data;
+        return (const void *)match->driver_data;
 }
-EXPORT_SYMBOL_GPL(acpi_get_match_data);
+EXPORT_SYMBOL_GPL(acpi_device_get_match_data);
 
 int acpi_match_device_ids(struct acpi_device *device,
                           const struct acpi_device_id *ids)
 {
-        return __acpi_match_device(device, ids, NULL) ? 0 : -ENOENT;
+        return __acpi_match_device(device, ids, NULL, NULL, NULL) ? 0 : -ENOENT;
 }
 EXPORT_SYMBOL(acpi_match_device_ids);
 
@@ -849,10 +854,12 @@ bool acpi_driver_match_device(struct device *dev,
 {
         if (!drv->acpi_match_table)
                 return acpi_of_match_device(ACPI_COMPANION(dev),
-                                            drv->of_match_table);
+                                            drv->of_match_table,
+                                            NULL);
 
-        return !!__acpi_match_device(acpi_companion_match(dev),
-                                     drv->acpi_match_table, drv->of_match_table);
+        return __acpi_match_device(acpi_companion_match(dev),
+                                   drv->acpi_match_table, drv->of_match_table,
+                                   NULL, NULL);
 }
 EXPORT_SYMBOL_GPL(acpi_driver_match_device);
 
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index d9f38c645e4a..30a572956557 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1927,6 +1927,9 @@ static int acpi_ec_suspend_noirq(struct device *dev)
             ec->reference_count >= 1)
                 acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE);
 
+        if (acpi_sleep_no_ec_events())
+                acpi_ec_enter_noirq(ec);
+
         return 0;
 }
 
@@ -1934,6 +1937,9 @@ static int acpi_ec_resume_noirq(struct device *dev)
 {
         struct acpi_ec *ec = acpi_driver_data(to_acpi_device(dev));
 
+        if (acpi_sleep_no_ec_events())
+                acpi_ec_leave_noirq(ec);
+
         if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
             ec->reference_count >= 1)
                 acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE);
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index bbe48ad20886..eb09ef55c38a 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -2675,10 +2675,14 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
         else
                 ndr_desc->numa_node = NUMA_NO_NODE;
 
-        if(acpi_desc->platform_cap & ACPI_NFIT_CAPABILITY_CACHE_FLUSH)
+        /*
+         * Persistence domain bits are hierarchical, if
+         * ACPI_NFIT_CAPABILITY_CACHE_FLUSH is set then
+         * ACPI_NFIT_CAPABILITY_MEM_FLUSH is implied.
+         */
+        if (acpi_desc->platform_cap & ACPI_NFIT_CAPABILITY_CACHE_FLUSH)
                 set_bit(ND_REGION_PERSIST_CACHE, &ndr_desc->flags);
-
-        if (acpi_desc->platform_cap & ACPI_NFIT_CAPABILITY_MEM_FLUSH)
+        else if (acpi_desc->platform_cap & ACPI_NFIT_CAPABILITY_MEM_FLUSH)
                 set_bit(ND_REGION_PERSIST_MEMCTRL, &ndr_desc->flags);
 
         list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 8ccaae3550d2..85167603b9c9 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -103,25 +103,27 @@ int acpi_map_pxm_to_node(int pxm)
  */
 int acpi_map_pxm_to_online_node(int pxm)
 {
-        int node, n, dist, min_dist;
+        int node, min_node;
 
         node = acpi_map_pxm_to_node(pxm);
 
         if (node == NUMA_NO_NODE)
                 node = 0;
 
+        min_node = node;
         if (!node_online(node)) {
-                min_dist = INT_MAX;
+                int min_dist = INT_MAX, dist, n;
+
                 for_each_online_node(n) {
                         dist = node_distance(node, n);
                         if (dist < min_dist) {
                                 min_dist = dist;
-                                node = n;
+                                min_node = n;
                         }
                 }
         }
 
-        return node;
+        return min_node;
 }
 EXPORT_SYMBOL(acpi_map_pxm_to_online_node);
 
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 466d1503aba0..5815356ea6ad 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -1271,11 +1271,11 @@ static int acpi_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
         return 0;
 }
 
-static void *
+static const void *
 acpi_fwnode_device_get_match_data(const struct fwnode_handle *fwnode,
                                   const struct device *dev)
 {
-        return acpi_get_match_data(dev);
+        return acpi_device_get_match_data(dev);
 }
 
 #define DECLARE_ACPI_FWNODE_OPS(ops) \
diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c
index 89e97d21a89c..9d52743080a4 100644
--- a/drivers/acpi/spcr.c
+++ b/drivers/acpi/spcr.c
@@ -115,6 +115,7 @@ int __init acpi_parse_spcr(bool enable_earlycon, bool enable_console)
                         table->serial_port.access_width))) {
                 default:
                         pr_err("Unexpected SPCR Access Width.  Defaulting to byte size\n");
+                        /* fall through */
                 case 8:
                         iotype = "mmio";
                         break;
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 15e3d3c2260d..764b63a5aade 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -1991,8 +1991,14 @@ static void binder_send_failed_reply(struct binder_transaction *t,
                                         &target_thread->reply_error.work);
                                 wake_up_interruptible(&target_thread->wait);
                         } else {
-                                WARN(1, "Unexpected reply error: %u\n",
-                                                target_thread->reply_error.cmd);
+                                /*
+                                 * Cannot get here for normal operation, but
+                                 * we can if multiple synchronous transactions
+                                 * are sent without blocking for responses.
+                                 * Just ignore the 2nd error in this case.
+                                 */
+                                pr_warn("Unexpected reply error: %u\n",
+                                        target_thread->reply_error.cmd);
                         }
                         binder_inner_proc_unlock(target_thread->proc);
                         binder_thread_dec_tmpref(target_thread);
@@ -2193,7 +2199,7 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
         int debug_id = buffer->debug_id;
 
         binder_debug(BINDER_DEBUG_TRANSACTION,
-                     "%d buffer release %d, size %zd-%zd, failed at %p\n",
+                     "%d buffer release %d, size %zd-%zd, failed at %pK\n",
                      proc->pid, buffer->debug_id,
                      buffer->data_size, buffer->offsets_size, failed_at);
 
@@ -3705,7 +3711,7 @@ static int binder_thread_write(struct binder_proc *proc,
                                 }
                         }
                         binder_debug(BINDER_DEBUG_DEAD_BINDER,
-                                     "%d:%d BC_DEAD_BINDER_DONE %016llx found %p\n",
+                                     "%d:%d BC_DEAD_BINDER_DONE %016llx found %pK\n",
                                      proc->pid, thread->pid, (u64)cookie,
                                      death);
                         if (death == NULL) {
@@ -4376,6 +4382,15 @@ static int binder_thread_release(struct binder_proc *proc,
 
         binder_inner_proc_unlock(thread->proc);
 
+        /*
+         * This is needed to avoid races between wake_up_poll() above and
+         * and ep_remove_waitqueue() called for other reasons (eg the epoll file
+         * descriptor being closed); ep_remove_waitqueue() holds an RCU read
+         * lock, so we can be sure it's done after calling synchronize_rcu().
+         */
+        if (thread->looper & BINDER_LOOPER_STATE_POLL)
+                synchronize_rcu();
+
         if (send_reply)
                 binder_send_failed_reply(send_reply, BR_DEAD_REPLY);
         binder_release_work(proc, &thread->todo);
@@ -4391,6 +4406,8 @@ static __poll_t binder_poll(struct file *filp,
         bool wait_for_proc_work;
 
         thread = binder_get_thread(proc);
+        if (!thread)
+                return POLLERR;
 
         binder_inner_proc_lock(thread->proc);
         thread->looper |= BINDER_LOOPER_STATE_POLL;
@@ -5034,7 +5051,7 @@ static void print_binder_transaction_ilocked(struct seq_file *m,
         spin_lock(&t->lock);
         to_proc = t->to_proc;
         seq_printf(m,
-                   "%s %d: %p from %d:%d to %d:%d code %x flags %x pri %ld r%d",
+                   "%s %d: %pK from %d:%d to %d:%d code %x flags %x pri %ld r%d",
                    prefix, t->debug_id, t,
                    t->from ? t->from->proc->pid : 0,
                    t->from ? t->from->pid : 0,
@@ -5058,7 +5075,7 @@ static void print_binder_transaction_ilocked(struct seq_file *m,
         }
         if (buffer->target_node)
                 seq_printf(m, " node %d", buffer->target_node->debug_id);
-        seq_printf(m, " size %zd:%zd data %p\n",
+        seq_printf(m, " size %zd:%zd data %pK\n",
                    buffer->data_size, buffer->offsets_size,
                    buffer->data);
 }
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 355a95a83a34..1ff17799769d 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -550,7 +550,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
           .driver_data = board_ahci_yes_fbs },
         { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
           .driver_data = board_ahci_yes_fbs },
-        { PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642),
+        { PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
+          .driver_data = board_ahci_yes_fbs },
+        { PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
           .driver_data = board_ahci_yes_fbs },
 
         /* Promise */
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index a0de7a38430c..7adcf3caabd0 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -665,6 +665,16 @@ int ahci_stop_engine(struct ata_port *ap)
         if ((tmp & (PORT_CMD_START | PORT_CMD_LIST_ON)) == 0)
                 return 0;
 
+        /*
+         * Don't try to issue commands but return with ENODEV if the
+         * AHCI controller not available anymore (e.g. due to PCIe hot
+         * unplugging). Otherwise a 500ms delay for each port is added.
+         */
+        if (tmp == 0xffffffff) {
+                dev_err(ap->host->dev, "AHCI controller unavailable!\n");
+                return -ENODEV;
+        }
+
         /* setting HBA to idle */
         tmp &= ~PORT_CMD_START;
         writel(tmp, port_mmio + PORT_CMD);
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
index 341d0ef82cbd..30cc8f1a31e1 100644
--- a/drivers/ata/libahci_platform.c
+++ b/drivers/ata/libahci_platform.c
@@ -340,7 +340,7 @@ static int ahci_platform_get_regulator(struct ahci_host_priv *hpriv, u32 port,
  * 2) regulator for controlling the targets power (optional)
  * 3) 0 - AHCI_MAX_CLKS clocks, as specified in the devs devicetree node,
  *    or for non devicetree enabled platforms a single clock
- *      4) phys (optional)
+ * 4) phys (optional)
  *
  * RETURNS:
  * The allocated ahci_host_priv on success, otherwise an ERR_PTR value
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 3c09122bf038..7431ccd03316 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4530,6 +4530,25 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
         { "PIONEER DVD-RW  DVR-212D",   NULL,   ATA_HORKAGE_NOSETXFER },
         { "PIONEER DVD-RW  DVR-216D",   NULL,   ATA_HORKAGE_NOSETXFER },
 
+        /* Crucial BX100 SSD 500GB has broken LPM support */
+        { "CT500BX100SSD1",             NULL,   ATA_HORKAGE_NOLPM },
+
+        /* 512GB MX100 with MU01 firmware has both queued TRIM and LPM issues */
+        { "Crucial_CT512MX100*",        "MU01", ATA_HORKAGE_NO_NCQ_TRIM |
+                                                ATA_HORKAGE_ZERO_AFTER_TRIM |
+                                                ATA_HORKAGE_NOLPM, },
+        /* 512GB MX100 with newer firmware has only LPM issues */
+        { "Crucial_CT512MX100*",        NULL,   ATA_HORKAGE_ZERO_AFTER_TRIM |
+                                                ATA_HORKAGE_NOLPM, },
+
+        /* 480GB+ M500 SSDs have both queued TRIM and LPM issues */
+        { "Crucial_CT480M500*",         NULL,   ATA_HORKAGE_NO_NCQ_TRIM |
+                                                ATA_HORKAGE_ZERO_AFTER_TRIM |
+                                                ATA_HORKAGE_NOLPM, },
+        { "Crucial_CT960M500*",         NULL,   ATA_HORKAGE_NO_NCQ_TRIM |
+                                                ATA_HORKAGE_ZERO_AFTER_TRIM |
+                                                ATA_HORKAGE_NOLPM, },
+
         /* devices that don't properly handle queued TRIM commands */
         { "Micron_M500_*",              NULL,   ATA_HORKAGE_NO_NCQ_TRIM |
                                                 ATA_HORKAGE_ZERO_AFTER_TRIM, },
@@ -4541,7 +4560,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
                                                 ATA_HORKAGE_ZERO_AFTER_TRIM, },
         { "Crucial_CT*MX100*",          "MU01", ATA_HORKAGE_NO_NCQ_TRIM |
                                                 ATA_HORKAGE_ZERO_AFTER_TRIM, },
-        { "Samsung SSD 8*",             NULL,   ATA_HORKAGE_NO_NCQ_TRIM |
+        { "Samsung SSD 840*",           NULL,   ATA_HORKAGE_NO_NCQ_TRIM |
+                                                ATA_HORKAGE_ZERO_AFTER_TRIM, },
+        { "Samsung SSD 850*",           NULL,   ATA_HORKAGE_NO_NCQ_TRIM |
                                                 ATA_HORKAGE_ZERO_AFTER_TRIM, },
         { "FCCT*M500*",                 NULL,   ATA_HORKAGE_NO_NCQ_TRIM |
                                                 ATA_HORKAGE_ZERO_AFTER_TRIM, },
@@ -5401,8 +5422,7 @@ void ata_qc_issue(struct ata_queued_cmd *qc)
          * We guarantee to LLDs that they will have at least one
          * non-zero sg if the command is a data command.
          */
-        if (WARN_ON_ONCE(ata_is_data(prot) &&
-                         (!qc->sg || !qc->n_elem || !qc->nbytes)))
+        if (ata_is_data(prot) && (!qc->sg || !qc->n_elem || !qc->nbytes))
                 goto sys_err;
 
         if (ata_is_dma(prot) || (ata_is_pio(prot) &&
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 11c3137d7b0a..c016829a38fd 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -815,7 +815,8 @@ void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap)
 
         if (ap->pflags & ATA_PFLAG_LOADING)
                 ap->pflags &= ~ATA_PFLAG_LOADING;
-        else if (ap->pflags & ATA_PFLAG_SCSI_HOTPLUG)
+        else if ((ap->pflags & ATA_PFLAG_SCSI_HOTPLUG) &&
+                !(ap->flags & ATA_FLAG_SAS_HOST))
                 schedule_delayed_work(&ap->hotplug_task, 0);
 
         if (ap->pflags & ATA_PFLAG_RECOVERED)
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 66be961c93a4..89a9d4a2efc8 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3316,6 +3316,12 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
                 goto invalid_fld;
         }
 
+        /* We may not issue NCQ commands to devices not supporting NCQ */
+        if (ata_is_ncq(tf->protocol) && !ata_ncq_enabled(dev)) {
+                fp = 1;
+                goto invalid_fld;
+        }
+
         /* sanity check for pio multi commands */
         if ((cdb[1] & 0xe0) && !is_multi_taskfile(tf)) {
                 fp = 1;
@@ -4282,7 +4288,7 @@ static inline void ata_scsi_dump_cdb(struct ata_port *ap,
 #ifdef ATA_DEBUG
         struct scsi_device *scsidev = cmd->device;
 
-        DPRINTK("CDB (%u:%d,%d,%d) %9ph\n",
+        DPRINTK("CDB (%u:%d,%d,%lld) %9ph\n",
                 ap->print_id,
                 scsidev->channel, scsidev->id, scsidev->lun,
                 cmd->cmnd);
@@ -4309,7 +4315,9 @@ static inline int __ata_scsi_queuecmd(struct scsi_cmnd *scmd,
                 if (likely((scsi_op != ATA_16) || !atapi_passthru16)) {
                         /* relay SCSI command to ATAPI device */
                         int len = COMMAND_SIZE(scsi_op);
-                        if (unlikely(len > scmd->cmd_len || len > dev->cdb_len))
+                        if (unlikely(len > scmd->cmd_len ||
+                                     len > dev->cdb_len ||
+                                     scmd->cmd_len > ATAPI_CDB_LEN))
                                 goto bad_cdb_len;
 
                         xlat_func = atapi_xlat;
diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index 80ee2f2a50d0..6456e07db72a 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -146,6 +146,7 @@
 enum sata_rcar_type {
         RCAR_GEN1_SATA,
         RCAR_GEN2_SATA,
+        RCAR_GEN3_SATA,
         RCAR_R8A7790_ES1_SATA,
 };
 
@@ -784,26 +785,11 @@ static void sata_rcar_setup_port(struct ata_host *host)
         ioaddr->command_addr    = ioaddr->cmd_addr + (ATA_REG_CMD << 2);
 }
 
-static void sata_rcar_init_controller(struct ata_host *host)
+static void sata_rcar_init_module(struct sata_rcar_priv *priv)
 {
-        struct sata_rcar_priv *priv = host->private_data;
         void __iomem *base = priv->base;
         u32 val;
 
-        /* reset and setup phy */
-        switch (priv->type) {
-        case RCAR_GEN1_SATA:
-                sata_rcar_gen1_phy_init(priv);
-                break;
-        case RCAR_GEN2_SATA:
-        case RCAR_R8A7790_ES1_SATA:
-                sata_rcar_gen2_phy_init(priv);
-                break;
-        default:
-                dev_warn(host->dev, "SATA phy is not initialized\n");
-                break;
-        }
-
         /* SATA-IP reset state */
         val = ioread32(base + ATAPI_CONTROL1_REG);
         val |= ATAPI_CONTROL1_RESET;
@@ -824,10 +810,33 @@ static void sata_rcar_init_controller(struct ata_host *host)
         /* ack and mask */
         iowrite32(0, base + SATAINTSTAT_REG);
         iowrite32(0x7ff, base + SATAINTMASK_REG);
+
         /* enable interrupts */
         iowrite32(ATAPI_INT_ENABLE_SATAINT, base + ATAPI_INT_ENABLE_REG);
 }
 
+static void sata_rcar_init_controller(struct ata_host *host)
+{
+        struct sata_rcar_priv *priv = host->private_data;
+
+        /* reset and setup phy */
+        switch (priv->type) {
+        case RCAR_GEN1_SATA:
+                sata_rcar_gen1_phy_init(priv);
+                break;
+        case RCAR_GEN2_SATA:
+        case RCAR_GEN3_SATA:
+        case RCAR_R8A7790_ES1_SATA:
+                sata_rcar_gen2_phy_init(priv);
+                break;
+        default:
+                dev_warn(host->dev, "SATA phy is not initialized\n");
+                break;
+        }
+
+        sata_rcar_init_module(priv);
+}
+
 static const struct of_device_id sata_rcar_match[] = {
         {
                 /* Deprecated by "renesas,sata-r8a7779" */
@@ -856,7 +865,7 @@ static const struct of_device_id sata_rcar_match[] = {
         },
         {
                 .compatible = "renesas,sata-r8a7795",
-                .data = (void *)RCAR_GEN2_SATA
+                .data = (void *)RCAR_GEN3_SATA
         },
         {
                 .compatible = "renesas,rcar-gen2-sata",
@@ -864,7 +873,7 @@ static const struct of_device_id sata_rcar_match[] = {
         },
         {
                 .compatible = "renesas,rcar-gen3-sata",
-                .data = (void *)RCAR_GEN2_SATA
+                .data = (void *)RCAR_GEN3_SATA
         },
         { },
 };
@@ -982,11 +991,18 @@ static int sata_rcar_resume(struct device *dev)
         if (ret)
                 return ret;
 
-        /* ack and mask */
-        iowrite32(0, base + SATAINTSTAT_REG);
-        iowrite32(0x7ff, base + SATAINTMASK_REG);
-        /* enable interrupts */
-        iowrite32(ATAPI_INT_ENABLE_SATAINT, base + ATAPI_INT_ENABLE_REG);
+        if (priv->type == RCAR_GEN3_SATA) {
+                sata_rcar_gen2_phy_init(priv);
+                sata_rcar_init_module(priv);
+        } else {
+                /* ack and mask */
+                iowrite32(0, base + SATAINTSTAT_REG);
+                iowrite32(0x7ff, base + SATAINTMASK_REG);
+
+                /* enable interrupts */
+                iowrite32(ATAPI_INT_ENABLE_SATAINT,
+                          base + ATAPI_INT_ENABLE_REG);
+        }
 
         ata_host_resume(host);
 
diff --git a/drivers/auxdisplay/img-ascii-lcd.c b/drivers/auxdisplay/img-ascii-lcd.c
index 9180b9bd5821..834509506ef6 100644
--- a/drivers/auxdisplay/img-ascii-lcd.c
+++ b/drivers/auxdisplay/img-ascii-lcd.c
@@ -97,7 +97,7 @@ static struct img_ascii_lcd_config boston_config = {
 static void malta_update(struct img_ascii_lcd_ctx *ctx)
 {
         unsigned int i;
-        int err;
+        int err = 0;
 
         for (i = 0; i < ctx->cfg->num_chars; i++) {
                 err = regmap_write(ctx->regmap,
@@ -180,7 +180,7 @@ static int sead3_wait_lcd_idle(struct img_ascii_lcd_ctx *ctx)
 static void sead3_update(struct img_ascii_lcd_ctx *ctx)
 {
         unsigned int i;
-        int err;
+        int err = 0;
 
         for (i = 0; i < ctx->cfg->num_chars; i++) {
                 err = sead3_wait_lcd_idle(ctx);
@@ -224,7 +224,7 @@ MODULE_DEVICE_TABLE(of, img_ascii_lcd_matches);
 
 /**
  * img_ascii_lcd_scroll() - scroll the display by a character
- * @arg: really a pointer to the private data structure
+ * @t: really a pointer to the private data structure
  *
  * Scroll the current message along the LCD by one character, rearming the
  * timer if required.
diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c
index ea7869c0d7f9..ec5e8800f8ad 100644
--- a/drivers/auxdisplay/panel.c
+++ b/drivers/auxdisplay/panel.c
@@ -1372,7 +1372,7 @@ static void panel_process_inputs(void)
                                 break;
                         input->rise_timer = 0;
                         input->state = INPUT_ST_RISING;
-                        /* no break here, fall through */
+                        /* fall through */
                 case INPUT_ST_RISING:
                         if ((phys_curr & input->mask) != input->value) {
                                 input->state = INPUT_ST_LOW;
@@ -1385,11 +1385,11 @@ static void panel_process_inputs(void)
                         }
                         input->high_timer = 0;
                         input->state = INPUT_ST_HIGH;
-                        /* no break here, fall through */
+                        /* fall through */
                 case INPUT_ST_HIGH:
                         if (input_state_high(input))
                                 break;
-                        /* no break here, fall through */
+                        /* fall through */
                 case INPUT_ST_FALLING:
                         input_state_falling(input);
                 }
diff --git a/drivers/base/core.c b/drivers/base/core.c
index b2261f92f2f1..5847364f25d9 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -310,6 +310,9 @@ static void __device_link_del(struct device_link *link)
         dev_info(link->consumer, "Dropping the link to %s\n",
                  dev_name(link->supplier));
 
+        if (link->flags & DL_FLAG_PM_RUNTIME)
+                pm_runtime_drop_link(link->consumer);
+
         list_del(&link->s_node);
         list_del(&link->c_node);
         device_link_free(link);
diff --git a/drivers/base/power/wakeirq.c b/drivers/base/power/wakeirq.c
index a8ac86e4d79e..6637fc319269 100644
--- a/drivers/base/power/wakeirq.c
+++ b/drivers/base/power/wakeirq.c
@@ -321,7 +321,8 @@ void dev_pm_arm_wake_irq(struct wake_irq *wirq)
                 return;
 
         if (device_may_wakeup(wirq->dev)) {
-                if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED)
+                if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED &&
+                    !pm_runtime_status_suspended(wirq->dev))
                         enable_irq(wirq->irq);
 
                 enable_irq_wake(wirq->irq);
@@ -343,7 +344,8 @@ void dev_pm_disarm_wake_irq(struct wake_irq *wirq)
         if (device_may_wakeup(wirq->dev)) {
                 disable_irq_wake(wirq->irq);
 
-                if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED)
+                if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED &&
+                    !pm_runtime_status_suspended(wirq->dev))
                         disable_irq_nosync(wirq->irq);
         }
 }
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 302236281d83..8f205f6461ed 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -1410,9 +1410,8 @@ int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
 }
 EXPORT_SYMBOL(fwnode_graph_parse_endpoint);
 
-void *device_get_match_data(struct device *dev)
+const void *device_get_match_data(struct device *dev)
 {
-        return fwnode_call_ptr_op(dev_fwnode(dev), device_get_match_data,
-                                  dev);
+        return fwnode_call_ptr_op(dev_fwnode(dev), device_get_match_data, dev);
 }
 EXPORT_SYMBOL_GPL(device_get_match_data);
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index e5aa62fcf5a8..3aaf6af3ec23 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -1758,7 +1758,7 @@ static struct kobject *floppy_find(dev_t dev, int *part, void *data)
         if (unit[drive].type->code == FD_NODRIVE)
                 return NULL;
         *part = 0;
-        return get_disk(unit[drive].gendisk);
+        return get_disk_and_module(unit[drive].gendisk);
 }
 
 static int __init amiga_floppy_probe(struct platform_device *pdev)
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index 8bc3b9fd8dd2..dfb2c2622e5a 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1917,7 +1917,7 @@ static struct kobject *floppy_find(dev_t dev, int *part, void *data)
         if (drive >= FD_MAX_UNITS || type > NUM_DISK_MINORS)
                 return NULL;
         *part = 0;
-        return get_disk(unit[drive].disk);
+        return get_disk_and_module(unit[drive].disk);
 }
 
 static int __init atari_floppy_init (void)
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 8028a3a7e7fd..deea78e485da 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -456,7 +456,7 @@ static struct kobject *brd_probe(dev_t dev, int *part, void *data)
 
         mutex_lock(&brd_devices_mutex);
         brd = brd_init_one(MINOR(dev) / max_part, &new);
-        kobj = brd ? get_disk(brd->brd_disk) : NULL;
+        kobj = brd ? get_disk_and_module(brd->brd_disk) : NULL;
         mutex_unlock(&brd_devices_mutex);
 
         if (new)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index eae484acfbbc..8ec7235fc93b 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4505,7 +4505,7 @@ static struct kobject *floppy_find(dev_t dev, int *part, void *data)
         if (((*part >> 2) & 0x1f) >= ARRAY_SIZE(floppy_type))
                 return NULL;
         *part = 0;
-        return get_disk(disks[drive]);
+        return get_disk_and_module(disks[drive]);
 }
 
 static int __init do_floppy_init(void)
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index d5fe720cf149..ee62d2d517bf 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -266,7 +266,7 @@ static int lo_write_bvec(struct file *file, struct bio_vec *bvec, loff_t *ppos)
         struct iov_iter i;
         ssize_t bw;
 
-        iov_iter_bvec(&i, ITER_BVEC, bvec, 1, bvec->bv_len);
+        iov_iter_bvec(&i, ITER_BVEC | WRITE, bvec, 1, bvec->bv_len);
 
         file_start_write(file);
         bw = vfs_iter_write(file, &i, ppos, 0);
@@ -1922,7 +1922,7 @@ static struct kobject *loop_probe(dev_t dev, int *part, void *data)
         if (err < 0)
                 kobj = NULL;
         else
-                kobj = get_disk(lo->lo_disk);
+                kobj = get_disk_and_module(lo->lo_disk);
         mutex_unlock(&loop_index_mutex);
 
         *part = 0;
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 5f2a4240a204..86258b00a1d4 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -1591,7 +1591,7 @@ again:
                         if (new_index < 0) {
                                 mutex_unlock(&nbd_index_mutex);
                                 printk(KERN_ERR "nbd: failed to add new device\n");
-                                return ret;
+                                return new_index;
                         }
                         nbd = idr_find(&nbd_index_idr, new_index);
                 }
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 531a0915066b..c61d20c9f3f8 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -1122,7 +1122,7 @@ static int pkt_start_recovery(struct packet_data *pkt)
         pkt->sector = new_sector;
 
         bio_reset(pkt->bio);
-        bio_set_set(pkt->bio, pd->bdev);
+        bio_set_dev(pkt->bio, pd->bdev);
         bio_set_op_attrs(pkt->bio, REQ_OP_WRITE, 0);
         pkt->bio->bi_iter.bi_sector = new_sector;
         pkt->bio->bi_iter.bi_size = pkt->frames * CD_FRAMESIZE;
diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index 84434d3ea19b..64e066eba72e 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -799,7 +799,7 @@ static struct kobject *floppy_find(dev_t dev, int *part, void *data)
                 return NULL;
 
         *part = 0;
-        return get_disk(swd->unit[drive].disk);
+        return get_disk_and_module(swd->unit[drive].disk);
 }
 
 static int swim_add_floppy(struct swim_priv *swd, enum drive_location location)
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index e126e4cac2ca..92ec1bbece51 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -262,6 +262,7 @@ static DEFINE_SPINLOCK(minor_lock);
 
 static int blkfront_setup_indirect(struct blkfront_ring_info *rinfo);
 static void blkfront_gather_backend_features(struct blkfront_info *info);
+static int negotiate_mq(struct blkfront_info *info);
 
 static int get_id_from_freelist(struct blkfront_ring_info *rinfo)
 {
@@ -1774,11 +1775,18 @@ static int talk_to_blkback(struct xenbus_device *dev,
         unsigned int i, max_page_order;
         unsigned int ring_page_order;
 
+        if (!info)
+                return -ENODEV;
+
         max_page_order = xenbus_read_unsigned(info->xbdev->otherend,
                                               "max-ring-page-order", 0);
         ring_page_order = min(xen_blkif_max_ring_order, max_page_order);
         info->nr_ring_pages = 1 << ring_page_order;
 
+        err = negotiate_mq(info);
+        if (err)
+                goto destroy_blkring;
+
         for (i = 0; i < info->nr_rings; i++) {
                 struct blkfront_ring_info *rinfo = &info->rinfo[i];
 
@@ -1978,11 +1986,6 @@ static int blkfront_probe(struct xenbus_device *dev,
         }
 
         info->xbdev = dev;
-        err = negotiate_mq(info);
-        if (err) {
-                kfree(info);
-                return err;
-        }
 
         mutex_init(&info->mutex);
         info->vdevice = vdevice;
@@ -2099,10 +2102,6 @@ static int blkfront_resume(struct xenbus_device *dev)
 
         blkif_free(info, info->connected == BLKIF_STATE_CONNECTED);
 
-        err = negotiate_mq(info);
-        if (err)
-                return err;
-
         err = talk_to_blkback(dev, info);
         if (!err)
                 blk_mq_update_nr_hw_queues(&info->tag_set, info->nr_rings);
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index 41c95c9b2ab4..8f9130ab5887 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -332,7 +332,7 @@ static const struct block_device_operations z2_fops =
 static struct kobject *z2_find(dev_t dev, int *part, void *data)
 {
         *part = 0;
-        return get_disk(z2ram_gendisk);
+        return get_disk_and_module(z2ram_gendisk);
 }
 
 static struct request_queue *z2_queue;
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 2a55380ad730..366a49c7c08f 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -21,6 +21,7 @@
  *
  */
 
+#include <linux/dmi.h>
 #include <linux/module.h>
 #include <linux/usb.h>
 #include <linux/usb/quirks.h>
@@ -230,7 +231,6 @@ static const struct usb_device_id blacklist_table[] = {
         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
-        { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
         { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
@@ -263,6 +263,7 @@ static const struct usb_device_id blacklist_table[] = {
         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 
         /* QCA ROME chipset */
+        { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_QCA_ROME },
         { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
         { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
         { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
@@ -379,6 +380,21 @@ static const struct usb_device_id blacklist_table[] = {
         { }     /* Terminating entry */
 };
 
+/* The Bluetooth USB module build into some devices needs to be reset on resume,
+ * this is a problem with the platform (likely shutting off all power) not with
+ * the module itself. So we use a DMI list to match known broken platforms.
+ */
+static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
+        {
+                /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
+                },
+        },
+        {}
+};
+
 #define BTUSB_MAX_ISOC_FRAMES   10
 
 #define BTUSB_INTR_RUNNING      0
@@ -2945,6 +2961,9 @@ static int btusb_probe(struct usb_interface *intf,
         hdev->send   = btusb_send_frame;
         hdev->notify = btusb_notify;
 
+        if (dmi_check_system(btusb_needs_reset_resume_table))
+                interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
+
 #ifdef CONFIG_PM
         err = btusb_config_oob_wake(hdev);
         if (err)
@@ -3031,12 +3050,6 @@ static int btusb_probe(struct usb_interface *intf,
         if (id->driver_info & BTUSB_QCA_ROME) {
                 data->setup_on_usb = btusb_setup_qca;
                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
-
-                /* QCA Rome devices lose their updated firmware over suspend,
-                 * but the USB hub doesn't notice any status change.
-                 * explicitly request a device reset on resume.
-                 */
-                interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
         }
 
 #ifdef CONFIG_BT_HCIBTUSB_RTL
diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index 0438a64b8185..40b9fb247010 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -244,7 +244,9 @@ static irqreturn_t bcm_host_wake(int irq, void *data)
 
         bt_dev_dbg(bdev, "Host wake IRQ");
 
-        pm_request_resume(bdev->dev);
+        pm_runtime_get(bdev->dev);
+        pm_runtime_mark_last_busy(bdev->dev);
+        pm_runtime_put_autosuspend(bdev->dev);
 
         return IRQ_HANDLED;
 }
@@ -301,7 +303,7 @@ static const struct bcm_set_sleep_mode default_sleep_params = {
         .usb_auto_sleep = 0,
         .usb_resume_timeout = 0,
         .break_to_host = 0,
-        .pulsed_host_wake = 0,
+        .pulsed_host_wake = 1,
 };
 
 static int bcm_setup_sleep(struct hci_uart *hu)
@@ -586,8 +588,11 @@ static int bcm_recv(struct hci_uart *hu, const void *data, int count)
         } else if (!bcm->rx_skb) {
                 /* Delay auto-suspend when receiving completed packet */
                 mutex_lock(&bcm_device_lock);
-                if (bcm->dev && bcm_device_exists(bcm->dev))
-                        pm_request_resume(bcm->dev->dev);
+                if (bcm->dev && bcm_device_exists(bcm->dev)) {
+                        pm_runtime_get(bcm->dev->dev);
+                        pm_runtime_mark_last_busy(bcm->dev->dev);
+                        pm_runtime_put_autosuspend(bcm->dev->dev);
+                }
                 mutex_unlock(&bcm_device_lock);
         }
 
@@ -922,12 +927,13 @@ static int bcm_get_resources(struct bcm_device *dev)
 
         dev->clk = devm_clk_get(dev->dev, NULL);
 
-        dev->device_wakeup = devm_gpiod_get(dev->dev, "device-wakeup",
-                                            GPIOD_OUT_LOW);
+        dev->device_wakeup = devm_gpiod_get_optional(dev->dev, "device-wakeup",
+                                                     GPIOD_OUT_LOW);
         if (IS_ERR(dev->device_wakeup))
                 return PTR_ERR(dev->device_wakeup);
 
-        dev->shutdown = devm_gpiod_get(dev->dev, "shutdown", GPIOD_OUT_LOW);
+        dev->shutdown = devm_gpiod_get_optional(dev->dev, "shutdown",
+                                                GPIOD_OUT_LOW);
         if (IS_ERR(dev->shutdown))
                 return PTR_ERR(dev->shutdown);
 
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 4d46003c46cf..cdaeeea7999c 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -630,7 +630,7 @@ static int sysc_init_dts_quirks(struct sysc *ddata)
         for (i = 0; i < ARRAY_SIZE(sysc_dts_quirks); i++) {
                 prop = of_get_property(np, sysc_dts_quirks[i].name, &len);
                 if (!prop)
-                        break;
+                        continue;
 
                 ddata->cfg.quirks |= sysc_dts_quirks[i].mask;
         }
diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c
index d1f5bb534e0e..6e9df558325b 100644
--- a/drivers/char/hw_random/via-rng.c
+++ b/drivers/char/hw_random/via-rng.c
@@ -162,7 +162,7 @@ static int via_rng_init(struct hwrng *rng)
         /* Enable secondary noise source on CPUs where it is present. */
 
         /* Nehemiah stepping 8 and higher */
-        if ((c->x86_model == 9) && (c->x86_mask > 7))
+        if ((c->x86_model == 9) && (c->x86_stepping > 7))
                 lo |= VIA_NOISESRC2;
 
         /* Esther */
diff --git a/drivers/char/tpm/st33zp24/st33zp24.c b/drivers/char/tpm/st33zp24/st33zp24.c
index 4d1dc8b46877..f95b9c75175b 100644
--- a/drivers/char/tpm/st33zp24/st33zp24.c
+++ b/drivers/char/tpm/st33zp24/st33zp24.c
@@ -457,7 +457,7 @@ static int st33zp24_recv(struct tpm_chip *chip, unsigned char *buf,
                             size_t count)
 {
         int size = 0;
-        int expected;
+        u32 expected;
 
         if (!chip)
                 return -EBUSY;
@@ -474,7 +474,7 @@ static int st33zp24_recv(struct tpm_chip *chip, unsigned char *buf,
         }
 
         expected = be32_to_cpu(*(__be32 *)(buf + 2));
-        if (expected > count) {
+        if (expected > count || expected < TPM_HEADER_SIZE) {
                 size = -EIO;
                 goto out;
         }
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index 76df4fbcf089..9e80a953d693 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -1190,6 +1190,10 @@ int tpm_get_random(struct tpm_chip *chip, u8 *out, size_t max)
                         break;
 
                 recd = be32_to_cpu(tpm_cmd.params.getrandom_out.rng_data_len);
+                if (recd > num_bytes) {
+                        total = -EFAULT;
+                        break;
+                }
 
                 rlength = be32_to_cpu(tpm_cmd.header.out.length);
                 if (rlength < offsetof(struct tpm_getrandom_out, rng_data) +
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index c17e75348a99..a700f8f9ead7 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -683,6 +683,10 @@ static int tpm2_unseal_cmd(struct tpm_chip *chip,
         if (!rc) {
                 data_len = be16_to_cpup(
                         (__be16 *) &buf.data[TPM_HEADER_SIZE + 4]);
+                if (data_len < MIN_KEY_SIZE ||  data_len > MAX_KEY_SIZE + 1) {
+                        rc = -EFAULT;
+                        goto out;
+                }
 
                 rlength = be32_to_cpu(((struct tpm2_cmd *)&buf)
                                         ->header.out.length);
diff --git a/drivers/char/tpm/tpm_i2c_infineon.c b/drivers/char/tpm/tpm_i2c_infineon.c
index c1dd39eaaeeb..6116cd05e228 100644
--- a/drivers/char/tpm/tpm_i2c_infineon.c
+++ b/drivers/char/tpm/tpm_i2c_infineon.c
@@ -473,7 +473,8 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
 static int tpm_tis_i2c_recv(struct tpm_chip *chip, u8 *buf, size_t count)
 {
         int size = 0;
-        int expected, status;
+        int status;
+        u32 expected;
 
         if (count < TPM_HEADER_SIZE) {
                 size = -EIO;
@@ -488,7 +489,7 @@ static int tpm_tis_i2c_recv(struct tpm_chip *chip, u8 *buf, size_t count)
         }
 
         expected = be32_to_cpu(*(__be32 *)(buf + 2));
-        if ((size_t) expected > count) {
+        if (((size_t) expected > count) || (expected < TPM_HEADER_SIZE)) {
                 size = -EIO;
                 goto out;
         }
diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c
index c6428771841f..caa86b19c76d 100644
--- a/drivers/char/tpm/tpm_i2c_nuvoton.c
+++ b/drivers/char/tpm/tpm_i2c_nuvoton.c
@@ -281,7 +281,11 @@ static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count)
         struct device *dev = chip->dev.parent;
         struct i2c_client *client = to_i2c_client(dev);
         s32 rc;
-        int expected, status, burst_count, retries, size = 0;
+        int status;
+        int burst_count;
+        int retries;
+        int size = 0;
+        u32 expected;
 
         if (count < TPM_HEADER_SIZE) {
                 i2c_nuvoton_ready(chip);    /* return to idle */
@@ -323,7 +327,7 @@ static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count)
                  * to machine native
                  */
                 expected = be32_to_cpu(*(__be32 *) (buf + 2));
-                if (expected > count) {
+                if (expected > count || expected < size) {
                         dev_err(dev, "%s() expected > count\n", __func__);
                         size = -EIO;
                         continue;
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 183a5f54d875..da074e3db19b 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -270,7 +270,8 @@ static int tpm_tis_recv(struct tpm_chip *chip, u8 *buf, size_t count)
 {
         struct tpm_tis_data *priv = dev_get_drvdata(&chip->dev);
         int size = 0;
-        int expected, status;
+        int status;
+        u32 expected;
 
         if (count < TPM_HEADER_SIZE) {
                 size = -EIO;
@@ -285,7 +286,7 @@ static int tpm_tis_recv(struct tpm_chip *chip, u8 *buf, size_t count)
         }
 
         expected = be32_to_cpu(*(__be32 *) (buf + 2));
-        if (expected > count) {
+        if (expected > count || expected < TPM_HEADER_SIZE) {
                 size = -EIO;
                 goto out;
         }
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 44301a3d9963..a07f6451694a 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -449,17 +449,17 @@ struct bcm2835_pll_ana_bits {
 static const struct bcm2835_pll_ana_bits bcm2835_ana_default = {
         .mask0 = 0,
         .set0 = 0,
-        .mask1 = (u32)~(A2W_PLL_KI_MASK | A2W_PLL_KP_MASK),
+        .mask1 = A2W_PLL_KI_MASK | A2W_PLL_KP_MASK,
         .set1 = (2 << A2W_PLL_KI_SHIFT) | (8 << A2W_PLL_KP_SHIFT),
-        .mask3 = (u32)~A2W_PLL_KA_MASK,
+        .mask3 = A2W_PLL_KA_MASK,
         .set3 = (2 << A2W_PLL_KA_SHIFT),
         .fb_prediv_mask = BIT(14),
 };
 
 static const struct bcm2835_pll_ana_bits bcm2835_ana_pllh = {
-        .mask0 = (u32)~(A2W_PLLH_KA_MASK | A2W_PLLH_KI_LOW_MASK),
+        .mask0 = A2W_PLLH_KA_MASK | A2W_PLLH_KI_LOW_MASK,
         .set0 = (2 << A2W_PLLH_KA_SHIFT) | (2 << A2W_PLLH_KI_LOW_SHIFT),
-        .mask1 = (u32)~(A2W_PLLH_KI_HIGH_MASK | A2W_PLLH_KP_MASK),
+        .mask1 = A2W_PLLH_KI_HIGH_MASK | A2W_PLLH_KP_MASK,
         .set1 = (6 << A2W_PLLH_KP_SHIFT),
         .mask3 = 0,
         .set3 = 0,
@@ -623,8 +623,10 @@ static int bcm2835_pll_on(struct clk_hw *hw)
                      ~A2W_PLL_CTRL_PWRDN);
 
         /* Take the PLL out of reset. */
+        spin_lock(&cprman->regs_lock);
         cprman_write(cprman, data->cm_ctrl_reg,
                      cprman_read(cprman, data->cm_ctrl_reg) & ~CM_PLL_ANARST);
+        spin_unlock(&cprman->regs_lock);
 
         /* Wait for the PLL to lock. */
         timeout = ktime_add_ns(ktime_get(), LOCK_TIMEOUT_NS);
@@ -701,9 +703,11 @@ static int bcm2835_pll_set_rate(struct clk_hw *hw,
         }
 
         /* Unmask the reference clock from the oscillator. */
+        spin_lock(&cprman->regs_lock);
         cprman_write(cprman, A2W_XOSC_CTRL,
                      cprman_read(cprman, A2W_XOSC_CTRL) |
                      data->reference_enable_mask);
+        spin_unlock(&cprman->regs_lock);
 
         if (do_ana_setup_first)
                 bcm2835_pll_write_ana(cprman, data->ana_reg_base, ana);
diff --git a/drivers/clk/clk-aspeed.c b/drivers/clk/clk-aspeed.c
index 9f7f931d6b2f..5eb50c31e455 100644
--- a/drivers/clk/clk-aspeed.c
+++ b/drivers/clk/clk-aspeed.c
@@ -205,6 +205,18 @@ static const struct aspeed_clk_soc_data ast2400_data = {
         .calc_pll = aspeed_ast2400_calc_pll,
 };
 
+static int aspeed_clk_is_enabled(struct clk_hw *hw)
+{
+        struct aspeed_clk_gate *gate = to_aspeed_clk_gate(hw);
+        u32 clk = BIT(gate->clock_idx);
+        u32 enval = (gate->flags & CLK_GATE_SET_TO_DISABLE) ? 0 : clk;
+        u32 reg;
+
+        regmap_read(gate->map, ASPEED_CLK_STOP_CTRL, &reg);
+
+        return ((reg & clk) == enval) ? 1 : 0;
+}
+
 static int aspeed_clk_enable(struct clk_hw *hw)
 {
         struct aspeed_clk_gate *gate = to_aspeed_clk_gate(hw);
@@ -215,6 +227,11 @@ static int aspeed_clk_enable(struct clk_hw *hw)
 
         spin_lock_irqsave(gate->lock, flags);
 
+        if (aspeed_clk_is_enabled(hw)) {
+                spin_unlock_irqrestore(gate->lock, flags);
+                return 0;
+        }
+
         if (gate->reset_idx >= 0) {
                 /* Put IP in reset */
                 regmap_update_bits(gate->map, ASPEED_RESET_CTRL, rst, rst);
@@ -255,17 +272,6 @@ static void aspeed_clk_disable(struct clk_hw *hw)
         spin_unlock_irqrestore(gate->lock, flags);
 }
 
-static int aspeed_clk_is_enabled(struct clk_hw *hw)
-{
-        struct aspeed_clk_gate *gate = to_aspeed_clk_gate(hw);
-        u32 clk = BIT(gate->clock_idx);
-        u32 reg;
-
-        regmap_read(gate->map, ASPEED_CLK_STOP_CTRL, &reg);
-
-        return (reg & clk) ? 0 : 1;
-}
-
 static const struct clk_ops aspeed_clk_gate_ops = {
         .enable = aspeed_clk_enable,
         .disable = aspeed_clk_disable,
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 0f686a9dac3e..076d4244d672 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1125,8 +1125,10 @@ static int clk_core_round_rate_nolock(struct clk_core *core,
 {
         lockdep_assert_held(&prepare_lock);
 
-        if (!core)
+        if (!core) {
+                req->rate = 0;
                 return 0;
+        }
 
         clk_core_init_rate_req(core, req);
 
@@ -2309,8 +2311,11 @@ static int clk_core_set_phase_nolock(struct clk_core *core, int degrees)
 
         trace_clk_set_phase(core, degrees);
 
-        if (core->ops->set_phase)
+        if (core->ops->set_phase) {
                 ret = core->ops->set_phase(core->hw, degrees);
+                if (!ret)
+                        core->phase = degrees;
+        }
 
         trace_clk_set_phase_complete(core, degrees);
 
@@ -2968,22 +2973,37 @@ static int __clk_core_init(struct clk_core *core)
         core->rate = core->req_rate = rate;
 
         /*
+         * Enable CLK_IS_CRITICAL clocks so newly added critical clocks
+         * don't get accidentally disabled when walking the orphan tree and
+         * reparenting clocks
+         */
+        if (core->flags & CLK_IS_CRITICAL) {
+                unsigned long flags;
+
+                clk_core_prepare(core);
+
+                flags = clk_enable_lock();
+                clk_core_enable(core);
+                clk_enable_unlock(flags);
+        }
+
+        /*
          * walk the list of orphan clocks and reparent any that newly finds a
          * parent.
          */
         hlist_for_each_entry_safe(orphan, tmp2, &clk_orphan_list, child_node) {
                 struct clk_core *parent = __clk_init_parent(orphan);
-                unsigned long flags;
 
                 /*
-                 * we could call __clk_set_parent, but that would result in a
-                 * redundant call to the .set_rate op, if it exists
+                 * We need to use __clk_set_parent_before() and _after() to
+                 * to properly migrate any prepare/enable count of the orphan
+                 * clock. This is important for CLK_IS_CRITICAL clocks, which
+                 * are enabled during init but might not have a parent yet.
                  */
                 if (parent) {
                         /* update the clk tree topology */
-                        flags = clk_enable_lock();
-                        clk_reparent(orphan, parent);
-                        clk_enable_unlock(flags);
+                        __clk_set_parent_before(orphan, parent);
+                        __clk_set_parent_after(orphan, parent, NULL);
                         __clk_recalc_accuracies(orphan);
                         __clk_recalc_rates(orphan, 0);
                 }
@@ -3000,16 +3020,6 @@ static int __clk_core_init(struct clk_core *core)
         if (core->ops->init)
                 core->ops->init(core->hw);
 
-        if (core->flags & CLK_IS_CRITICAL) {
-                unsigned long flags;
-
-                clk_core_prepare(core);
-
-                flags = clk_enable_lock();
-                clk_core_enable(core);
-                clk_enable_unlock(flags);
-        }
-
         kref_init(&core->ref);
 out:
         clk_pm_runtime_put(core);
diff --git a/drivers/clk/hisilicon/clk-hi3660-stub.c b/drivers/clk/hisilicon/clk-hi3660-stub.c
index 9b6c72bbddf9..e8b2c43b1bb8 100644
--- a/drivers/clk/hisilicon/clk-hi3660-stub.c
+++ b/drivers/clk/hisilicon/clk-hi3660-stub.c
@@ -149,6 +149,8 @@ static int hi3660_stub_clk_probe(struct platform_device *pdev)
                 return PTR_ERR(stub_clk_chan.mbox);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!res)
+                return -EINVAL;
         freq_reg = devm_ioremap(dev, res->start, resource_size(res));
         if (!freq_reg)
                 return -ENOMEM;
diff --git a/drivers/clk/imx/clk-imx51-imx53.c b/drivers/clk/imx/clk-imx51-imx53.c
index c864992e6983..caa8bd40692c 100644
--- a/drivers/clk/imx/clk-imx51-imx53.c
+++ b/drivers/clk/imx/clk-imx51-imx53.c
@@ -131,7 +131,17 @@ static const char *ieee1588_sels[] = { "pll3_sw", "pll4_sw", "dummy" /* usbphy2_
 static struct clk *clk[IMX5_CLK_END];
 static struct clk_onecell_data clk_data;
 
-static struct clk ** const uart_clks[] __initconst = {
+static struct clk ** const uart_clks_mx51[] __initconst = {
+        &clk[IMX5_CLK_UART1_IPG_GATE],
+        &clk[IMX5_CLK_UART1_PER_GATE],
+        &clk[IMX5_CLK_UART2_IPG_GATE],
+        &clk[IMX5_CLK_UART2_PER_GATE],
+        &clk[IMX5_CLK_UART3_IPG_GATE],
+        &clk[IMX5_CLK_UART3_PER_GATE],
+        NULL
+};
+
+static struct clk ** const uart_clks_mx50_mx53[] __initconst = {
         &clk[IMX5_CLK_UART1_IPG_GATE],
         &clk[IMX5_CLK_UART1_PER_GATE],
         &clk[IMX5_CLK_UART2_IPG_GATE],
@@ -321,8 +331,6 @@ static void __init mx5_clocks_common_init(void __iomem *ccm_base)
         clk_prepare_enable(clk[IMX5_CLK_TMAX1]);
         clk_prepare_enable(clk[IMX5_CLK_TMAX2]); /* esdhc2, fec */
         clk_prepare_enable(clk[IMX5_CLK_TMAX3]); /* esdhc1, esdhc4 */
-
-        imx_register_uart_clocks(uart_clks);
 }
 
 static void __init mx50_clocks_init(struct device_node *np)
@@ -388,6 +396,8 @@ static void __init mx50_clocks_init(struct device_node *np)
 
         r = clk_round_rate(clk[IMX5_CLK_USBOH3_PER_GATE], 54000000);
         clk_set_rate(clk[IMX5_CLK_USBOH3_PER_GATE], r);
+
+        imx_register_uart_clocks(uart_clks_mx50_mx53);
 }
 CLK_OF_DECLARE(imx50_ccm, "fsl,imx50-ccm", mx50_clocks_init);
 
@@ -477,6 +487,8 @@ static void __init mx51_clocks_init(struct device_node *np)
         val = readl(MXC_CCM_CLPCR);
         val |= 1 << 23;
         writel(val, MXC_CCM_CLPCR);
+
+        imx_register_uart_clocks(uart_clks_mx51);
 }
 CLK_OF_DECLARE(imx51_ccm, "fsl,imx51-ccm", mx51_clocks_init);
 
@@ -606,5 +618,7 @@ static void __init mx53_clocks_init(struct device_node *np)
 
         r = clk_round_rate(clk[IMX5_CLK_USBOH3_PER_GATE], 54000000);
         clk_set_rate(clk[IMX5_CLK_USBOH3_PER_GATE], r);
+
+        imx_register_uart_clocks(uart_clks_mx50_mx53);
 }
 CLK_OF_DECLARE(imx53_ccm, "fsl,imx53-ccm", mx53_clocks_init);
diff --git a/drivers/clk/qcom/apcs-msm8916.c b/drivers/clk/qcom/apcs-msm8916.c
index 246957f1a413..b1cc8dbcd327 100644
--- a/drivers/clk/qcom/apcs-msm8916.c
+++ b/drivers/clk/qcom/apcs-msm8916.c
@@ -49,11 +49,10 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev)
         struct clk_regmap_mux_div *a53cc;
         struct regmap *regmap;
         struct clk_init_data init = { };
-        int ret;
+        int ret = -ENODEV;
 
         regmap = dev_get_regmap(parent, NULL);
-        if (IS_ERR(regmap)) {
-                ret = PTR_ERR(regmap);
+        if (!regmap) {
                 dev_err(dev, "failed to get regmap: %d\n", ret);
                 return ret;
         }
diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c
index 72b16ed1012b..3b97f60540ad 100644
--- a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c
+++ b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c
@@ -762,7 +762,7 @@ static struct ccu_mp out_a_clk = {
                 .features       = CCU_FEATURE_FIXED_PREDIV,
                 .hw.init        = CLK_HW_INIT_PARENTS("out-a",
                                                       clk_out_parents,
-                                                      &ccu_div_ops,
+                                                      &ccu_mp_ops,
                                                       0),
         },
 };
@@ -783,7 +783,7 @@ static struct ccu_mp out_b_clk = {
                 .features       = CCU_FEATURE_FIXED_PREDIV,
                 .hw.init        = CLK_HW_INIT_PARENTS("out-b",
                                                       clk_out_parents,
-                                                      &ccu_div_ops,
+                                                      &ccu_mp_ops,
                                                       0),
         },
 };
@@ -804,7 +804,7 @@ static struct ccu_mp out_c_clk = {
                 .features       = CCU_FEATURE_FIXED_PREDIV,
                 .hw.init        = CLK_HW_INIT_PARENTS("out-c",
                                                       clk_out_parents,
-                                                      &ccu_div_ops,
+                                                      &ccu_mp_ops,
                                                       0),
         },
 };
diff --git a/drivers/clk/ti/clk-33xx.c b/drivers/clk/ti/clk-33xx.c
index 612491a26070..12e0a2d19911 100644
--- a/drivers/clk/ti/clk-33xx.c
+++ b/drivers/clk/ti/clk-33xx.c
@@ -45,7 +45,7 @@ static const struct omap_clkctrl_bit_data am3_gpio4_bit_data[] __initconst = {
 
 static const struct omap_clkctrl_reg_data am3_l4_per_clkctrl_regs[] __initconst = {
         { AM3_CPGMAC0_CLKCTRL, NULL, CLKF_SW_SUP, "cpsw_125mhz_gclk", "cpsw_125mhz_clkdm" },
-        { AM3_LCDC_CLKCTRL, NULL, CLKF_SW_SUP, "lcd_gclk", "lcdc_clkdm" },
+        { AM3_LCDC_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_SET_RATE_PARENT, "lcd_gclk", "lcdc_clkdm" },
         { AM3_USB_OTG_HS_CLKCTRL, NULL, CLKF_SW_SUP, "usbotg_fck", "l3s_clkdm" },
         { AM3_TPTC0_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
         { AM3_EMIF_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_ddr_m2_div2_ck", "l3_clkdm" },
diff --git a/drivers/clk/ti/clk-43xx.c b/drivers/clk/ti/clk-43xx.c
index 2b7c2e017665..63c5ddb50187 100644
--- a/drivers/clk/ti/clk-43xx.c
+++ b/drivers/clk/ti/clk-43xx.c
@@ -187,7 +187,7 @@ static const struct omap_clkctrl_reg_data am4_l4_per_clkctrl_regs[] __initconst
         { AM4_OCP2SCP0_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
         { AM4_OCP2SCP1_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
         { AM4_EMIF_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_ddr_m2_ck", "emif_clkdm" },
-        { AM4_DSS_CORE_CLKCTRL, NULL, CLKF_SW_SUP, "disp_clk", "dss_clkdm" },
+        { AM4_DSS_CORE_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_SET_RATE_PARENT, "disp_clk", "dss_clkdm" },
         { AM4_CPGMAC0_CLKCTRL, NULL, CLKF_SW_SUP, "cpsw_125mhz_gclk", "cpsw_125mhz_clkdm" },
         { 0 },
 };
diff --git a/drivers/clk/ti/clkctrl.c b/drivers/clk/ti/clkctrl.c
index afa0d6bfc5c1..421b05392220 100644
--- a/drivers/clk/ti/clkctrl.c
+++ b/drivers/clk/ti/clkctrl.c
@@ -537,6 +537,8 @@ static void __init _ti_omap4_clkctrl_setup(struct device_node *node)
                 init.parent_names = &reg_data->parent;
                 init.num_parents = 1;
                 init.flags = 0;
+                if (reg_data->flags & CLKF_SET_RATE_PARENT)
+                        init.flags |= CLK_SET_RATE_PARENT;
                 init.name = kasprintf(GFP_KERNEL, "%s:%s:%04x:%d",
                                       node->parent->name, node->name,
                                       reg_data->offset, 0);
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index b3b4ed9b6874..d2e5382821a4 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -386,6 +386,7 @@ config ATMEL_PIT
 
 config ATMEL_ST
         bool "Atmel ST timer support" if COMPILE_TEST
+        depends on HAS_IOMEM
         select TIMER_OF
         select MFD_SYSCON
         help
diff --git a/drivers/clocksource/arc_timer.c b/drivers/clocksource/arc_timer.c
index 4927355f9cbe..471b428d8034 100644
--- a/drivers/clocksource/arc_timer.c
+++ b/drivers/clocksource/arc_timer.c
@@ -251,9 +251,14 @@ static irqreturn_t timer_irq_handler(int irq, void *dev_id)
         int irq_reenable = clockevent_state_periodic(evt);
 
         /*
-         * Any write to CTRL reg ACks the interrupt, we rewrite the
-         * Count when [N]ot [H]alted bit.
-         * And re-arm it if perioid by [I]nterrupt [E]nable bit
+         * 1. ACK the interrupt
+         *    - For ARC700, any write to CTRL reg ACKs it, so just rewrite
+         *      Count when [N]ot [H]alted bit.
+         *    - For HS3x, it is a bit subtle. On taken count-down interrupt,
+         *      IP bit [3] is set, which needs to be cleared for ACK'ing.
+         *      The write below can only update the other two bits, hence
+         *      explicitly clears IP bit
+         * 2. Re-arm interrupt if periodic by writing to IE bit [0]
          */
         write_aux_reg(ARC_REG_TIMER0_CTRL, irq_reenable | TIMER_CTRL_NH);
 
diff --git a/drivers/clocksource/fsl_ftm_timer.c b/drivers/clocksource/fsl_ftm_timer.c
index 3ee7e6fea621..846d18daf893 100644
--- a/drivers/clocksource/fsl_ftm_timer.c
+++ b/drivers/clocksource/fsl_ftm_timer.c
@@ -281,7 +281,7 @@ static int __init __ftm_clk_init(struct device_node *np, char *cnt_name,
 
 static unsigned long __init ftm_clk_init(struct device_node *np)
 {
-        unsigned long freq;
+        long freq;
 
         freq = __ftm_clk_init(np, "ftm-evt-counter-en", "ftm-evt");
         if (freq <= 0)
diff --git a/drivers/clocksource/mips-gic-timer.c b/drivers/clocksource/mips-gic-timer.c
index a04808a21d4e..986b6796b631 100644
--- a/drivers/clocksource/mips-gic-timer.c
+++ b/drivers/clocksource/mips-gic-timer.c
@@ -166,7 +166,7 @@ static int __init __gic_clocksource_init(void)
 
         /* Set clocksource mask. */
         count_width = read_gic_config() & GIC_CONFIG_COUNTBITS;
-        count_width >>= __fls(GIC_CONFIG_COUNTBITS);
+        count_width >>= __ffs(GIC_CONFIG_COUNTBITS);
         count_width *= 4;
         count_width += 32;
         gic_clocksource.mask = CLOCKSOURCE_MASK(count_width);
@@ -205,12 +205,12 @@ static int __init gic_clocksource_of_init(struct device_node *node)
         } else if (of_property_read_u32(node, "clock-frequency",
                                         &gic_frequency)) {
                 pr_err("GIC frequency not specified.\n");
-                return -EINVAL;;
+                return -EINVAL;
         }
         gic_timer_irq = irq_of_parse_and_map(node, 0);
         if (!gic_timer_irq) {
                 pr_err("GIC timer IRQ not specified.\n");
-                return -EINVAL;;
+                return -EINVAL;
         }
 
         ret = __gic_clocksource_init();
diff --git a/drivers/clocksource/timer-sun5i.c b/drivers/clocksource/timer-sun5i.c
index 2a3fe83ec337..3b56ea3f52af 100644
--- a/drivers/clocksource/timer-sun5i.c
+++ b/drivers/clocksource/timer-sun5i.c
@@ -334,7 +334,7 @@ static int __init sun5i_timer_init(struct device_node *node)
         timer_base = of_io_request_and_map(node, 0, of_node_full_name(node));
         if (IS_ERR(timer_base)) {
                 pr_err("Can't map registers\n");
-                return PTR_ERR(timer_base);;
+                return PTR_ERR(timer_base);
         }
 
         irq = irq_of_parse_and_map(node, 0);
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 3a88e33b0cfe..fb586e09682d 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -44,10 +44,10 @@ config ARM_DT_BL_CPUFREQ
 
 config ARM_SCPI_CPUFREQ
         tristate "SCPI based CPUfreq driver"
-        depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
+        depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
         help
-          This adds the CPUfreq driver support for ARM big.LITTLE platforms
-          using SCPI protocol for CPU power management.
+          This adds the CPUfreq driver support for ARM platforms using SCPI
+          protocol for CPU power management.
 
           This driver uses SCPI Message Protocol driver to interact with the
           firmware providing the CPU DVFS functionality.
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 3a2ca0f79daf..d0c34df0529c 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -629,7 +629,7 @@ static int acpi_cpufreq_blacklist(struct cpuinfo_x86 *c)
         if (c->x86_vendor == X86_VENDOR_INTEL) {
                 if ((c->x86 == 15) &&
                     (c->x86_model == 6) &&
-                    (c->x86_mask == 8)) {
+                    (c->x86_stepping == 8)) {
                         pr_info("Intel(R) Xeon(R) 7100 Errata AL30, processors may lock up on frequency changes: disabling acpi-cpufreq\n");
                         return -ENODEV;
                     }
diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index 942632a27b50..f730b6528c18 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -775,7 +775,7 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy)
                 break;
 
         case 7:
-                switch (c->x86_mask) {
+                switch (c->x86_stepping) {
                 case 0:
                         longhaul_version = TYPE_LONGHAUL_V1;
                         cpu_model = CPU_SAMUEL2;
@@ -787,7 +787,7 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy)
                         break;
                 case 1 ... 15:
                         longhaul_version = TYPE_LONGHAUL_V2;
-                        if (c->x86_mask < 8) {
+                        if (c->x86_stepping < 8) {
                                 cpu_model = CPU_SAMUEL2;
                                 cpuname = "C3 'Samuel 2' [C5B]";
                         } else {
@@ -814,7 +814,7 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy)
                 numscales = 32;
                 memcpy(mults, nehemiah_mults, sizeof(nehemiah_mults));
                 memcpy(eblcr, nehemiah_eblcr, sizeof(nehemiah_eblcr));
-                switch (c->x86_mask) {
+                switch (c->x86_stepping) {
                 case 0 ... 1:
                         cpu_model = CPU_NEHEMIAH;
                         cpuname = "C3 'Nehemiah A' [C5XLOE]";
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index fd77812313f3..a25741b1281b 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -168,7 +168,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
 #endif
 
         /* Errata workaround */
-        cpuid = (c->x86 << 8) | (c->x86_model << 4) | c->x86_mask;
+        cpuid = (c->x86 << 8) | (c->x86_model << 4) | c->x86_stepping;
         switch (cpuid) {
         case 0x0f07:
         case 0x0f0a:
diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c
index 80ac313e6c59..302e9ce793a0 100644
--- a/drivers/cpufreq/powernow-k7.c
+++ b/drivers/cpufreq/powernow-k7.c
@@ -131,7 +131,7 @@ static int check_powernow(void)
                 return 0;
         }
 
-        if ((c->x86_model == 6) && (c->x86_mask == 0)) {
+        if ((c->x86_model == 6) && (c->x86_stepping == 0)) {
                 pr_info("K7 660[A0] core detected, enabling errata workarounds\n");
                 have_a0 = 1;
         }
diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c
index 7b596fa38ad2..6bebc1f9f55a 100644
--- a/drivers/cpufreq/s3c24xx-cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c
@@ -351,7 +351,13 @@ struct clk *s3c_cpufreq_clk_get(struct device *dev, const char *name)
 static int s3c_cpufreq_init(struct cpufreq_policy *policy)
 {
         policy->clk = clk_arm;
-        return cpufreq_generic_init(policy, ftab, cpu_cur.info->latency);
+
+        policy->cpuinfo.transition_latency = cpu_cur.info->latency;
+
+        if (ftab)
+                return cpufreq_table_validate_and_show(policy, ftab);
+
+        return 0;
 }
 
 static int __init s3c_cpufreq_initclks(void)
diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c
index c32a833e1b00..d300a163945f 100644
--- a/drivers/cpufreq/scpi-cpufreq.c
+++ b/drivers/cpufreq/scpi-cpufreq.c
@@ -51,15 +51,23 @@ static unsigned int scpi_cpufreq_get_rate(unsigned int cpu)
 static int
 scpi_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index)
 {
+        unsigned long freq = policy->freq_table[index].frequency;
         struct scpi_data *priv = policy->driver_data;
-        u64 rate = policy->freq_table[index].frequency * 1000;
+        u64 rate = freq * 1000;
         int ret;
 
         ret = clk_set_rate(priv->clk, rate);
-        if (!ret && (clk_get_rate(priv->clk) != rate))
-                ret = -EIO;
 
-        return ret;
+        if (ret)
+                return ret;
+
+        if (clk_get_rate(priv->clk) != rate)
+                return -EIO;
+
+        arch_set_freq_scale(policy->related_cpus, freq,
+                            policy->cpuinfo.max_freq);
+
+        return 0;
 }
 
 static int
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 41bc5397f4bb..4fa5adf16c70 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -37,7 +37,7 @@ struct cpu_id
 {
         __u8    x86;            /* CPU family */
         __u8    x86_model;      /* model */
-        __u8    x86_mask;       /* stepping */
+        __u8    x86_stepping;   /* stepping */
 };
 
 enum {
@@ -277,7 +277,7 @@ static int centrino_verify_cpu_id(const struct cpuinfo_x86 *c,
 {
         if ((c->x86 == x->x86) &&
             (c->x86_model == x->x86_model) &&
-            (c->x86_mask == x->x86_mask))
+            (c->x86_stepping == x->x86_stepping))
                 return 1;
         return 0;
 }
diff --git a/drivers/cpufreq/speedstep-lib.c b/drivers/cpufreq/speedstep-lib.c
index 8085ec9000d1..e3a9962ee410 100644
--- a/drivers/cpufreq/speedstep-lib.c
+++ b/drivers/cpufreq/speedstep-lib.c
@@ -272,9 +272,9 @@ unsigned int speedstep_detect_processor(void)
                 ebx = cpuid_ebx(0x00000001);
                 ebx &= 0x000000FF;
 
-                pr_debug("ebx value is %x, x86_mask is %x\n", ebx, c->x86_mask);
+                pr_debug("ebx value is %x, x86_stepping is %x\n", ebx, c->x86_stepping);
 
-                switch (c->x86_mask) {
+                switch (c->x86_stepping) {
                 case 4:
                         /*
                          * B-stepping [M-P4-M]
@@ -361,7 +361,7 @@ unsigned int speedstep_detect_processor(void)
                                 msr_lo, msr_hi);
                 if ((msr_hi & (1<<18)) &&
                     (relaxed_check ? 1 : (msr_hi & (3<<24)))) {
-                        if (c->x86_mask == 0x01) {
+                        if (c->x86_stepping == 0x01) {
                                 pr_debug("early PIII version\n");
                                 return SPEEDSTEP_CPU_PIII_C_EARLY;
                         } else
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 75d280cb2dc0..e843cf410373 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -228,12 +228,16 @@ static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
                  * without any error (HW optimizations for later
                  * CAAM eras), then try again.
                  */
+                if (ret)
+                        break;
+
                 rdsta_val = rd_reg32(&ctrl->r4tst[0].rdsta) & RDSTA_IFMASK;
                 if ((status && status != JRSTA_SSRC_JUMP_HALT_CC) ||
-                    !(rdsta_val & (1 << sh_idx)))
+                    !(rdsta_val & (1 << sh_idx))) {
                         ret = -EAGAIN;
-                if (ret)
                         break;
+                }
+
                 dev_info(ctrldev, "Instantiated RNG4 SH%d\n", sh_idx);
                 /* Clear the contents before recreating the descriptor */
                 memset(desc, 0x00, CAAM_CMD_SZ * 7);
diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c
index fcfa5b1eae61..b3afb6cc9d72 100644
--- a/drivers/crypto/ccp/psp-dev.c
+++ b/drivers/crypto/ccp/psp-dev.c
@@ -211,7 +211,7 @@ static int __sev_platform_shutdown_locked(int *error)
 {
         int ret;
 
-        ret = __sev_do_cmd_locked(SEV_CMD_SHUTDOWN, 0, error);
+        ret = __sev_do_cmd_locked(SEV_CMD_SHUTDOWN, NULL, error);
         if (ret)
                 return ret;
 
@@ -271,7 +271,7 @@ static int sev_ioctl_do_reset(struct sev_issue_cmd *argp)
                         return rc;
         }
 
-        return __sev_do_cmd_locked(SEV_CMD_FACTORY_RESET, 0, &argp->error);
+        return __sev_do_cmd_locked(SEV_CMD_FACTORY_RESET, NULL, &argp->error);
 }
 
 static int sev_ioctl_do_platform_status(struct sev_issue_cmd *argp)
@@ -299,7 +299,7 @@ static int sev_ioctl_do_pek_pdh_gen(int cmd, struct sev_issue_cmd *argp)
                         return rc;
         }
 
-        return __sev_do_cmd_locked(cmd, 0, &argp->error);
+        return __sev_do_cmd_locked(cmd, NULL, &argp->error);
 }
 
 static int sev_ioctl_do_pek_csr(struct sev_issue_cmd *argp)
@@ -624,7 +624,7 @@ EXPORT_SYMBOL_GPL(sev_guest_decommission);
 
 int sev_guest_df_flush(int *error)
 {
-        return sev_do_cmd(SEV_CMD_DF_FLUSH, 0, error);
+        return sev_do_cmd(SEV_CMD_DF_FLUSH, NULL, error);
 }
 EXPORT_SYMBOL_GPL(sev_guest_df_flush);
 
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c
index 4b6642a25df5..1c6cbda56afe 100644
--- a/drivers/crypto/padlock-aes.c
+++ b/drivers/crypto/padlock-aes.c
@@ -512,7 +512,7 @@ static int __init padlock_init(void)
 
         printk(KERN_NOTICE PFX "Using VIA PadLock ACE for AES algorithm.\n");
 
-        if (c->x86 == 6 && c->x86_model == 15 && c->x86_mask == 2) {
+        if (c->x86 == 6 && c->x86_model == 15 && c->x86_stepping == 2) {
                 ecb_fetch_blocks = MAX_ECB_FETCH_BLOCKS;
                 cbc_fetch_blocks = MAX_CBC_FETCH_BLOCKS;
                 printk(KERN_NOTICE PFX "VIA Nano stepping 2 detected: enabling workaround.\n");
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index 188f44b7eb27..5d64c08b7f47 100644
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -1922,15 +1922,21 @@ static void s5p_aes_crypt_start(struct s5p_aes_dev *dev, unsigned long mode)
         uint32_t aes_control;
         unsigned long flags;
         int err;
+        u8 *iv;
 
         aes_control = SSS_AES_KEY_CHANGE_MODE;
         if (mode & FLAGS_AES_DECRYPT)
                 aes_control |= SSS_AES_MODE_DECRYPT;
 
-        if ((mode & FLAGS_AES_MODE_MASK) == FLAGS_AES_CBC)
+        if ((mode & FLAGS_AES_MODE_MASK) == FLAGS_AES_CBC) {
                 aes_control |= SSS_AES_CHAIN_MODE_CBC;
-        else if ((mode & FLAGS_AES_MODE_MASK) == FLAGS_AES_CTR)
+                iv = req->info;
+        } else if ((mode & FLAGS_AES_MODE_MASK) == FLAGS_AES_CTR) {
                 aes_control |= SSS_AES_CHAIN_MODE_CTR;
+                iv = req->info;
+        } else {
+                iv = NULL; /* AES_ECB */
+        }
 
         if (dev->ctx->keylen == AES_KEYSIZE_192)
                 aes_control |= SSS_AES_KEY_SIZE_192;
@@ -1961,7 +1967,7 @@ static void s5p_aes_crypt_start(struct s5p_aes_dev *dev, unsigned long mode)
                 goto outdata_error;
 
         SSS_AES_WRITE(dev, AES_CONTROL, aes_control);
-        s5p_set_aes(dev, dev->ctx->aes_key, req->info, dev->ctx->keylen);
+        s5p_set_aes(dev, dev->ctx->aes_key, iv, dev->ctx->keylen);
 
         s5p_set_dma_indata(dev,  dev->sg_src);
         s5p_set_dma_outdata(dev, dev->sg_dst);
diff --git a/drivers/crypto/sunxi-ss/sun4i-ss-prng.c b/drivers/crypto/sunxi-ss/sun4i-ss-prng.c
index 0d01d1624252..63d636424161 100644
--- a/drivers/crypto/sunxi-ss/sun4i-ss-prng.c
+++ b/drivers/crypto/sunxi-ss/sun4i-ss-prng.c
@@ -28,7 +28,7 @@ int sun4i_ss_prng_generate(struct crypto_rng *tfm, const u8 *src,
         algt = container_of(alg, struct sun4i_ss_alg_template, alg.rng);
         ss = algt->ss;
 
-        spin_lock(&ss->slock);
+        spin_lock_bh(&ss->slock);
 
         writel(mode, ss->base + SS_CTL);
 
@@ -51,6 +51,6 @@ int sun4i_ss_prng_generate(struct crypto_rng *tfm, const u8 *src,
         }
 
         writel(0, ss->base + SS_CTL);
-        spin_unlock(&ss->slock);
-        return dlen;
+        spin_unlock_bh(&ss->slock);
+        return 0;
 }
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 9c80e0cb1664..6882fa2f8bad 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -1138,6 +1138,10 @@ static int talitos_sg_map(struct device *dev, struct scatterlist *src,
         struct talitos_private *priv = dev_get_drvdata(dev);
         bool is_sec1 = has_ftr_sec1(priv);
 
+        if (!src) {
+                to_talitos_ptr(ptr, 0, 0, is_sec1);
+                return 1;
+        }
         if (sg_count == 1) {
                 to_talitos_ptr(ptr, sg_dma_address(src) + offset, len, is_sec1);
                 return sg_count;
diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index 473af694ad1c..ecdc292aa4e4 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -246,12 +246,6 @@ long dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages,
 {
         long avail;
 
-        /*
-         * The device driver is allowed to sleep, in order to make the
-         * memory directly accessible.
-         */
-        might_sleep();
-
         if (!dax_dev)
                 return -EOPNOTSUPP;
 
diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c
index f652a0e0f5a2..3548caa9e933 100644
--- a/drivers/dma/mv_xor_v2.c
+++ b/drivers/dma/mv_xor_v2.c
@@ -163,6 +163,7 @@ struct mv_xor_v2_device {
         void __iomem *dma_base;
         void __iomem *glob_base;
         struct clk *clk;
+        struct clk *reg_clk;
         struct tasklet_struct irq_tasklet;
         struct list_head free_sw_desc;
         struct dma_device dmadev;
@@ -749,13 +750,26 @@ static int mv_xor_v2_probe(struct platform_device *pdev)
         if (ret)
                 return ret;
 
+        xor_dev->reg_clk = devm_clk_get(&pdev->dev, "reg");
+        if (PTR_ERR(xor_dev->reg_clk) != -ENOENT) {
+                if (!IS_ERR(xor_dev->reg_clk)) {
+                        ret = clk_prepare_enable(xor_dev->reg_clk);
+                        if (ret)
+                                return ret;
+                } else {
+                        return PTR_ERR(xor_dev->reg_clk);
+                }
+        }
+
         xor_dev->clk = devm_clk_get(&pdev->dev, NULL);
-        if (IS_ERR(xor_dev->clk) && PTR_ERR(xor_dev->clk) == -EPROBE_DEFER)
-                return -EPROBE_DEFER;
+        if (IS_ERR(xor_dev->clk) && PTR_ERR(xor_dev->clk) == -EPROBE_DEFER) {
+                ret = EPROBE_DEFER;
+                goto disable_reg_clk;
+        }
         if (!IS_ERR(xor_dev->clk)) {
                 ret = clk_prepare_enable(xor_dev->clk);
                 if (ret)
-                        return ret;
+                        goto disable_reg_clk;
         }
 
         ret = platform_msi_domain_alloc_irqs(&pdev->dev, 1,
@@ -866,8 +880,9 @@ free_hw_desq:
 free_msi_irqs:
         platform_msi_domain_free_irqs(&pdev->dev);
 disable_clk:
-        if (!IS_ERR(xor_dev->clk))
-                clk_disable_unprepare(xor_dev->clk);
+        clk_disable_unprepare(xor_dev->clk);
+disable_reg_clk:
+        clk_disable_unprepare(xor_dev->reg_clk);
         return ret;
 }
 
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index e3ff162c03fc..d0cacdb0713e 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -917,7 +917,7 @@ rcar_dmac_chan_prep_sg(struct rcar_dmac_chan *chan, struct scatterlist *sgl,
 
         rcar_dmac_chan_configure_desc(chan, desc);
 
-        max_chunk_size = (RCAR_DMATCR_MASK + 1) << desc->xfer_shift;
+        max_chunk_size = RCAR_DMATCR_MASK << desc->xfer_shift;
 
         /*
          * Allocate and fill the transfer chunk descriptors. We own the only
diff --git a/drivers/dma/stm32-dmamux.c b/drivers/dma/stm32-dmamux.c
index 4dbb30cf94ac..b922db90939a 100644
--- a/drivers/dma/stm32-dmamux.c
+++ b/drivers/dma/stm32-dmamux.c
@@ -118,14 +118,15 @@ static void *stm32_dmamux_route_allocate(struct of_phandle_args *dma_spec,
         spin_lock_irqsave(&dmamux->lock, flags);
         mux->chan_id = find_first_zero_bit(dmamux->dma_inuse,
                                            dmamux->dma_requests);
-        set_bit(mux->chan_id, dmamux->dma_inuse);
-        spin_unlock_irqrestore(&dmamux->lock, flags);
 
         if (mux->chan_id == dmamux->dma_requests) {
+                spin_unlock_irqrestore(&dmamux->lock, flags);
                 dev_err(&pdev->dev, "Run out of free DMA requests\n");
                 ret = -ENOMEM;
-                goto error;
+                goto error_chan_id;
         }
+        set_bit(mux->chan_id, dmamux->dma_inuse);
+        spin_unlock_irqrestore(&dmamux->lock, flags);
 
         /* Look for DMA Master */
         for (i = 1, min = 0, max = dmamux->dma_reqs[i];
@@ -173,6 +174,8 @@ static void *stm32_dmamux_route_allocate(struct of_phandle_args *dma_spec,
 
 error:
         clear_bit(mux->chan_id, dmamux->dma_inuse);
+
+error_chan_id:
         kfree(mux);
         return ERR_PTR(ret);
 }
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 8b16ec595fa7..329cb96f886f 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3147,7 +3147,7 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
         struct amd64_family_type *fam_type = NULL;
 
         pvt->ext_model  = boot_cpu_data.x86_model >> 4;
-        pvt->stepping   = boot_cpu_data.x86_mask;
+        pvt->stepping   = boot_cpu_data.x86_stepping;
         pvt->model      = boot_cpu_data.x86_model;
         pvt->fam        = boot_cpu_data.x86;
 
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index f34430f99fd8..872100215ca0 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -279,7 +279,7 @@ static const u32 correrrthrsld[] = {
  * sbridge structs
  */
 
-#define NUM_CHANNELS            4       /* Max channels per MC */
+#define NUM_CHANNELS            6       /* Max channels per MC */
 #define MAX_DIMMS               3       /* Max DIMMS per channel */
 #define KNL_MAX_CHAS            38      /* KNL max num. of Cache Home Agents */
 #define KNL_MAX_CHANNELS        6       /* KNL max num. of PCI channels */
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index 0a44d43802fe..3ec4c715e240 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -1,7 +1,6 @@
 /*
  * extcon-axp288.c - X-Power AXP288 PMIC extcon cable detection driver
  *
- * Copyright (C) 2016-2017 Hans de Goede <hdegoede@redhat.com>
  * Copyright (C) 2015 Intel Corporation
  * Author: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
  *
@@ -98,15 +97,13 @@ struct axp288_extcon_info {
         struct device *dev;
         struct regmap *regmap;
         struct regmap_irq_chip_data *regmap_irqc;
-        struct delayed_work det_work;
         int irq[EXTCON_IRQ_END];
         struct extcon_dev *edev;
         unsigned int previous_cable;
-        bool first_detect_done;
 };
 
 /* Power up/down reason string array */
-static char *axp288_pwr_up_down_info[] = {
+static const char * const axp288_pwr_up_down_info[] = {
         "Last wake caused by user pressing the power button",
         "Last wake caused by a charger insertion",
         "Last wake caused by a battery insertion",
@@ -124,7 +121,7 @@ static char *axp288_pwr_up_down_info[] = {
  */
 static void axp288_extcon_log_rsi(struct axp288_extcon_info *info)
 {
-        char **rsi;
+        const char * const *rsi;
         unsigned int val, i, clear_mask = 0;
         int ret;
 
@@ -140,25 +137,6 @@ static void axp288_extcon_log_rsi(struct axp288_extcon_info *info)
         regmap_write(info->regmap, AXP288_PS_BOOT_REASON_REG, clear_mask);
 }
 
-static void axp288_chrg_detect_complete(struct axp288_extcon_info *info)
-{
-        /*
-         * We depend on other drivers to do things like mux the data lines,
-         * enable/disable vbus based on the id-pin, etc. Sometimes the BIOS has
-         * not set these things up correctly resulting in the initial charger
-         * cable type detection giving a wrong result and we end up not charging
-         * or charging at only 0.5A.
-         *
-         * So we schedule a second cable type detection after 2 seconds to
-         * give the other drivers time to load and do their thing.
-         */
-        if (!info->first_detect_done) {
-                queue_delayed_work(system_wq, &info->det_work,
-                                   msecs_to_jiffies(2000));
-                info->first_detect_done = true;
-        }
-}
-
 static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
 {
         int ret, stat, cfg, pwr_stat;
@@ -223,8 +201,6 @@ no_vbus:
                 info->previous_cable = cable;
         }
 
-        axp288_chrg_detect_complete(info);
-
         return 0;
 
 dev_det_ret:
@@ -246,11 +222,8 @@ static irqreturn_t axp288_extcon_isr(int irq, void *data)
         return IRQ_HANDLED;
 }
 
-static void axp288_extcon_det_work(struct work_struct *work)
+static void axp288_extcon_enable(struct axp288_extcon_info *info)
 {
-        struct axp288_extcon_info *info =
-                container_of(work, struct axp288_extcon_info, det_work.work);
-
         regmap_update_bits(info->regmap, AXP288_BC_GLOBAL_REG,
                                                 BC_GLOBAL_RUN, 0);
         /* Enable the charger detection logic */
@@ -272,7 +245,6 @@ static int axp288_extcon_probe(struct platform_device *pdev)
         info->regmap = axp20x->regmap;
         info->regmap_irqc = axp20x->regmap_irqc;
         info->previous_cable = EXTCON_NONE;
-        INIT_DELAYED_WORK(&info->det_work, axp288_extcon_det_work);
 
         platform_set_drvdata(pdev, info);
 
@@ -318,7 +290,7 @@ static int axp288_extcon_probe(struct platform_device *pdev)
         }
 
         /* Start charger cable type detection */
-        queue_delayed_work(system_wq, &info->det_work, 0);
+        axp288_extcon_enable(info);
 
         return 0;
 }
diff --git a/drivers/extcon/extcon-intel-int3496.c b/drivers/extcon/extcon-intel-int3496.c
index c8691b5a9cb0..191e99f06a9a 100644
--- a/drivers/extcon/extcon-intel-int3496.c
+++ b/drivers/extcon/extcon-intel-int3496.c
@@ -153,8 +153,9 @@ static int int3496_probe(struct platform_device *pdev)
                 return ret;
         }
 
-        /* queue initial processing of id-pin */
+        /* process id-pin so that we start with the right status */
         queue_delayed_work(system_wq, &data->work, 0);
+        flush_delayed_work(&data->work);
 
         platform_set_drvdata(pdev, data);
 
diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c
index c16600f30611..0bdea60c65dd 100644
--- a/drivers/firmware/dcdbas.c
+++ b/drivers/firmware/dcdbas.c
@@ -639,7 +639,7 @@ static void __exit dcdbas_exit(void)
         platform_driver_unregister(&dcdbas_driver);
 }
 
-module_init(dcdbas_init);
+subsys_initcall_sync(dcdbas_init);
 module_exit(dcdbas_exit);
 
 MODULE_DESCRIPTION(DRIVER_DESCRIPTION " (version " DRIVER_VERSION ")");
diff --git a/drivers/firmware/efi/libstub/tpm.c b/drivers/firmware/efi/libstub/tpm.c
index da661bf8cb96..13c1edd37e96 100644
--- a/drivers/firmware/efi/libstub/tpm.c
+++ b/drivers/firmware/efi/libstub/tpm.c
@@ -68,11 +68,11 @@ void efi_retrieve_tpm2_eventlog_1_2(efi_system_table_t *sys_table_arg)
         efi_guid_t linux_eventlog_guid = LINUX_EFI_TPM_EVENT_LOG_GUID;
         efi_status_t status;
         efi_physical_addr_t log_location, log_last_entry;
-        struct linux_efi_tpm_eventlog *log_tbl;
+        struct linux_efi_tpm_eventlog *log_tbl = NULL;
         unsigned long first_entry_addr, last_entry_addr;
         size_t log_size, last_entry_size;
         efi_bool_t truncated;
-        void *tcg2_protocol;
+        void *tcg2_protocol = NULL;
 
         status = efi_call_early(locate_protocol, &tcg2_guid, NULL,
                                 &tcg2_protocol);
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index e76de57dd617..ebaea8b1594b 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -14,7 +14,6 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/gpio.h>
 #include <linux/init.h>
@@ -37,10 +36,9 @@ struct gpio_rcar_priv {
         struct platform_device *pdev;
         struct gpio_chip gpio_chip;
         struct irq_chip irq_chip;
-        struct clk *clk;
         unsigned int irq_parent;
+        atomic_t wakeup_path;
         bool has_both_edge_trigger;
-        bool needs_clk;
 };
 
 #define IOINTSEL 0x00   /* General IO/Interrupt Switching Register */
@@ -186,13 +184,10 @@ static int gpio_rcar_irq_set_wake(struct irq_data *d, unsigned int on)
                 }
         }
 
-        if (!p->clk)
-                return 0;
-
         if (on)
-                clk_enable(p->clk);
+                atomic_inc(&p->wakeup_path);
         else
-                clk_disable(p->clk);
+                atomic_dec(&p->wakeup_path);
 
         return 0;
 }
@@ -330,17 +325,14 @@ static int gpio_rcar_direction_output(struct gpio_chip *chip, unsigned offset,
 
 struct gpio_rcar_info {
         bool has_both_edge_trigger;
-        bool needs_clk;
 };
 
 static const struct gpio_rcar_info gpio_rcar_info_gen1 = {
         .has_both_edge_trigger = false,
-        .needs_clk = false,
 };
 
 static const struct gpio_rcar_info gpio_rcar_info_gen2 = {
         .has_both_edge_trigger = true,
-        .needs_clk = true,
 };
 
 static const struct of_device_id gpio_rcar_of_table[] = {
@@ -403,7 +395,6 @@ static int gpio_rcar_parse_dt(struct gpio_rcar_priv *p, unsigned int *npins)
         ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &args);
         *npins = ret == 0 ? args.args[2] : RCAR_MAX_GPIO_PER_BANK;
         p->has_both_edge_trigger = info->has_both_edge_trigger;
-        p->needs_clk = info->needs_clk;
 
         if (*npins == 0 || *npins > RCAR_MAX_GPIO_PER_BANK) {
                 dev_warn(&p->pdev->dev,
@@ -440,16 +431,6 @@ static int gpio_rcar_probe(struct platform_device *pdev)
 
         platform_set_drvdata(pdev, p);
 
-        p->clk = devm_clk_get(dev, NULL);
-        if (IS_ERR(p->clk)) {
-                if (p->needs_clk) {
-                        dev_err(dev, "unable to get clock\n");
-                        ret = PTR_ERR(p->clk);
-                        goto err0;
-                }
-                p->clk = NULL;
-        }
-
         pm_runtime_enable(dev);
 
         irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
@@ -531,11 +512,24 @@ static int gpio_rcar_remove(struct platform_device *pdev)
         return 0;
 }
 
+static int __maybe_unused gpio_rcar_suspend(struct device *dev)
+{
+        struct gpio_rcar_priv *p = dev_get_drvdata(dev);
+
+        if (atomic_read(&p->wakeup_path))
+                device_set_wakeup_path(dev);
+
+        return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(gpio_rcar_pm_ops, gpio_rcar_suspend, NULL);
+
 static struct platform_driver gpio_rcar_device_driver = {
         .probe          = gpio_rcar_probe,
         .remove         = gpio_rcar_remove,
         .driver         = {
                 .name   = "gpio_rcar",
+                .pm     = &gpio_rcar_pm_ops,
                 .of_match_table = of_match_ptr(gpio_rcar_of_table),
         }
 };
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 564bb7a31da4..84e5a9df2344 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -241,6 +241,19 @@ struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
 
                 desc = of_get_named_gpiod_flags(dev->of_node, prop_name, idx,
                                                 &of_flags);
+                /*
+                 * -EPROBE_DEFER in our case means that we found a
+                 * valid GPIO property, but no controller has been
+                 * registered so far.
+                 *
+                 * This means we don't need to look any further for
+                 * alternate name conventions, and we should really
+                 * preserve the return code for our user to be able to
+                 * retry probing later.
+                 */
+                if (IS_ERR(desc) && PTR_ERR(desc) == -EPROBE_DEFER)
+                        return desc;
+
                 if (!IS_ERR(desc) || (PTR_ERR(desc) != -ENOENT))
                         break;
         }
@@ -250,7 +263,7 @@ struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
                 desc = of_find_spi_gpio(dev, con_id, &of_flags);
 
         /* Special handling for regulator GPIOs if used */
-        if (IS_ERR(desc))
+        if (IS_ERR(desc) && PTR_ERR(desc) != -EPROBE_DEFER)
                 desc = of_find_regulator_gpio(dev, con_id, &of_flags);
 
         if (IS_ERR(desc))
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index 9da8d5802980..96501ff0e55b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -729,9 +729,11 @@ amdgpu_connector_lvds_detect(struct drm_connector *connector, bool force)
         enum drm_connector_status ret = connector_status_disconnected;
         int r;
 
-        r = pm_runtime_get_sync(connector->dev->dev);
-        if (r < 0)
-                return connector_status_disconnected;
+        if (!drm_kms_helper_is_poll_worker()) {
+                r = pm_runtime_get_sync(connector->dev->dev);
+                if (r < 0)
+                        return connector_status_disconnected;
+        }
 
         if (encoder) {
                 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
@@ -750,8 +752,12 @@ amdgpu_connector_lvds_detect(struct drm_connector *connector, bool force)
         /* check acpi lid status ??? */
 
         amdgpu_connector_update_scratch_regs(connector, ret);
-        pm_runtime_mark_last_busy(connector->dev->dev);
-        pm_runtime_put_autosuspend(connector->dev->dev);
+
+        if (!drm_kms_helper_is_poll_worker()) {
+                pm_runtime_mark_last_busy(connector->dev->dev);
+                pm_runtime_put_autosuspend(connector->dev->dev);
+        }
+
         return ret;
 }
 
@@ -861,9 +867,11 @@ amdgpu_connector_vga_detect(struct drm_connector *connector, bool force)
         enum drm_connector_status ret = connector_status_disconnected;
         int r;
 
-        r = pm_runtime_get_sync(connector->dev->dev);
-        if (r < 0)
-                return connector_status_disconnected;
+        if (!drm_kms_helper_is_poll_worker()) {
+                r = pm_runtime_get_sync(connector->dev->dev);
+                if (r < 0)
+                        return connector_status_disconnected;
+        }
 
         encoder = amdgpu_connector_best_single_encoder(connector);
         if (!encoder)
@@ -917,8 +925,10 @@ amdgpu_connector_vga_detect(struct drm_connector *connector, bool force)
         amdgpu_connector_update_scratch_regs(connector, ret);
 
 out:
-        pm_runtime_mark_last_busy(connector->dev->dev);
-        pm_runtime_put_autosuspend(connector->dev->dev);
+        if (!drm_kms_helper_is_poll_worker()) {
+                pm_runtime_mark_last_busy(connector->dev->dev);
+                pm_runtime_put_autosuspend(connector->dev->dev);
+        }
 
         return ret;
 }
@@ -981,9 +991,11 @@ amdgpu_connector_dvi_detect(struct drm_connector *connector, bool force)
         enum drm_connector_status ret = connector_status_disconnected;
         bool dret = false, broken_edid = false;
 
-        r = pm_runtime_get_sync(connector->dev->dev);
-        if (r < 0)
-                return connector_status_disconnected;
+        if (!drm_kms_helper_is_poll_worker()) {
+                r = pm_runtime_get_sync(connector->dev->dev);
+                if (r < 0)
+                        return connector_status_disconnected;
+        }
 
         if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) {
                 ret = connector->status;
@@ -1108,8 +1120,10 @@ out:
         amdgpu_connector_update_scratch_regs(connector, ret);
 
 exit:
-        pm_runtime_mark_last_busy(connector->dev->dev);
-        pm_runtime_put_autosuspend(connector->dev->dev);
+        if (!drm_kms_helper_is_poll_worker()) {
+                pm_runtime_mark_last_busy(connector->dev->dev);
+                pm_runtime_put_autosuspend(connector->dev->dev);
+        }
 
         return ret;
 }
@@ -1352,9 +1366,11 @@ amdgpu_connector_dp_detect(struct drm_connector *connector, bool force)
         struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
         int r;
 
-        r = pm_runtime_get_sync(connector->dev->dev);
-        if (r < 0)
-                return connector_status_disconnected;
+        if (!drm_kms_helper_is_poll_worker()) {
+                r = pm_runtime_get_sync(connector->dev->dev);
+                if (r < 0)
+                        return connector_status_disconnected;
+        }
 
         if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) {
                 ret = connector->status;
@@ -1424,8 +1440,10 @@ amdgpu_connector_dp_detect(struct drm_connector *connector, bool force)
 
         amdgpu_connector_update_scratch_regs(connector, ret);
 out:
-        pm_runtime_mark_last_busy(connector->dev->dev);
-        pm_runtime_put_autosuspend(connector->dev->dev);
+        if (!drm_kms_helper_is_poll_worker()) {
+                pm_runtime_mark_last_busy(connector->dev->dev);
+                pm_runtime_put_autosuspend(connector->dev->dev);
+        }
 
         return ret;
 }
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 13a5362d074e..e42a28e3adc5 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3172,8 +3172,6 @@ static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
 
         switch (aplane->base.type) {
         case DRM_PLANE_TYPE_PRIMARY:
-                aplane->base.format_default = true;
-
                 res = drm_universal_plane_init(
                                 dm->adev->ddev,
                                 &aplane->base,
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 9ab69b22b989..ca0b08bfa2cf 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -109,7 +109,7 @@ enum dc_edid_status dm_helpers_parse_edid_caps(
                 struct cea_sad *sad = &sads[i];
 
                 edid_caps->audio_modes[i].format_code = sad->format;
-                edid_caps->audio_modes[i].channel_count = sad->channels;
+                edid_caps->audio_modes[i].channel_count = sad->channels + 1;
                 edid_caps->audio_modes[i].sample_rate = sad->freq;
                 edid_caps->audio_modes[i].sample_size = sad->byte2;
         }
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_opp.c b/drivers/gpu/drm/amd/display/dc/dce/dce_opp.c
index 3931412ab6d3..87093894ea9e 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_opp.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_opp.c
@@ -128,23 +128,22 @@ static void set_truncation(
                 return;
         }
         /* on other format-to do */
-        if (params->flags.TRUNCATE_ENABLED == 0 ||
-                        params->flags.TRUNCATE_DEPTH == 2)
+        if (params->flags.TRUNCATE_ENABLED == 0)
                 return;
         /*Set truncation depth and Enable truncation*/
         REG_UPDATE_3(FMT_BIT_DEPTH_CONTROL,
                                 FMT_TRUNCATE_EN, 1,
                                 FMT_TRUNCATE_DEPTH,
-                                params->flags.TRUNCATE_MODE,
+                                params->flags.TRUNCATE_DEPTH,
                                 FMT_TRUNCATE_MODE,
-                                params->flags.TRUNCATE_DEPTH);
+                                params->flags.TRUNCATE_MODE);
 }
 
 
 /**
  *      set_spatial_dither
  *      1) set spatial dithering mode: pattern of seed
- *      2) set spatical dithering depth: 0 for 18bpp or 1 for 24bpp
+ *      2) set spatial dithering depth: 0 for 18bpp or 1 for 24bpp
  *      3) set random seed
  *      4) set random mode
  *              lfsr is reset every frame or not reset
diff --git a/drivers/gpu/drm/ast/ast_tables.h b/drivers/gpu/drm/ast/ast_tables.h
index 5f4c2e833a65..d665dd5af5dd 100644
--- a/drivers/gpu/drm/ast/ast_tables.h
+++ b/drivers/gpu/drm/ast/ast_tables.h
@@ -97,7 +97,7 @@ static const struct ast_vbios_dclk_info dclk_table[] = {
         {0x67, 0x22, 0x00},                     /* 0E: VCLK157_5        */
         {0x6A, 0x22, 0x00},                     /* 0F: VCLK162          */
         {0x4d, 0x4c, 0x80},                     /* 10: VCLK154          */
-        {0xa7, 0x78, 0x80},                     /* 11: VCLK83.5         */
+        {0x68, 0x6f, 0x80},                     /* 11: VCLK83.5         */
         {0x28, 0x49, 0x80},                     /* 12: VCLK106.5        */
         {0x37, 0x49, 0x80},                     /* 13: VCLK146.25       */
         {0x1f, 0x45, 0x80},                     /* 14: VCLK148.5        */
@@ -127,7 +127,7 @@ static const struct ast_vbios_dclk_info dclk_table_ast2500[] = {
         {0x67, 0x22, 0x00},                     /* 0E: VCLK157_5        */
         {0x6A, 0x22, 0x00},                     /* 0F: VCLK162          */
         {0x4d, 0x4c, 0x80},                     /* 10: VCLK154          */
-        {0xa7, 0x78, 0x80},                     /* 11: VCLK83.5         */
+        {0x68, 0x6f, 0x80},                     /* 11: VCLK83.5         */
         {0x28, 0x49, 0x80},                     /* 12: VCLK106.5        */
         {0x37, 0x49, 0x80},                     /* 13: VCLK146.25       */
         {0x1f, 0x45, 0x80},                     /* 14: VCLK148.5        */
diff --git a/drivers/gpu/drm/cirrus/cirrus_mode.c b/drivers/gpu/drm/cirrus/cirrus_mode.c
index cd23b1b28259..c91b9b054e3f 100644
--- a/drivers/gpu/drm/cirrus/cirrus_mode.c
+++ b/drivers/gpu/drm/cirrus/cirrus_mode.c
@@ -294,22 +294,7 @@ static void cirrus_crtc_prepare(struct drm_crtc *crtc)
 {
 }
 
-/*
- * This is called after a mode is programmed. It should reverse anything done
- * by the prepare function
- */
-static void cirrus_crtc_commit(struct drm_crtc *crtc)
-{
-}
-
-/*
- * The core can pass us a set of gamma values to program. We actually only
- * use this for 8-bit mode so can't perform smooth fades on deeper modes,
- * but it's a requirement that we provide the function
- */
-static int cirrus_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
-                                 u16 *blue, uint32_t size,
-                                 struct drm_modeset_acquire_ctx *ctx)
+static void cirrus_crtc_load_lut(struct drm_crtc *crtc)
 {
         struct drm_device *dev = crtc->dev;
         struct cirrus_device *cdev = dev->dev_private;
@@ -317,7 +302,7 @@ static int cirrus_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
         int i;
 
         if (!crtc->enabled)
-                return 0;
+                return;
 
         r = crtc->gamma_store;
         g = r + crtc->gamma_size;
@@ -330,6 +315,27 @@ static int cirrus_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
                 WREG8(PALETTE_DATA, *g++ >> 8);
                 WREG8(PALETTE_DATA, *b++ >> 8);
         }
+}
+
+/*
+ * This is called after a mode is programmed. It should reverse anything done
+ * by the prepare function
+ */
+static void cirrus_crtc_commit(struct drm_crtc *crtc)
+{
+        cirrus_crtc_load_lut(crtc);
+}
+
+/*
+ * The core can pass us a set of gamma values to program. We actually only
+ * use this for 8-bit mode so can't perform smooth fades on deeper modes,
+ * but it's a requirement that we provide the function
+ */
+static int cirrus_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
+                                 u16 *blue, uint32_t size,
+                                 struct drm_modeset_acquire_ctx *ctx)
+{
+        cirrus_crtc_load_lut(crtc);
 
         return 0;
 }
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 49147b2aa288..134069f36482 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -113,6 +113,9 @@ static const struct edid_quirk {
         /* AEO model 0 reports 8 bpc, but is a 6 bpc panel */
         { "AEO", 0, EDID_QUIRK_FORCE_6BPC },
 
+        /* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */
+        { "CPT", 0x17df, EDID_QUIRK_FORCE_6BPC },
+
         /* Belinea 10 15 55 */
         { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
         { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
@@ -162,6 +165,24 @@ static const struct edid_quirk {
 
         /* HTC Vive VR Headset */
         { "HVR", 0xaa01, EDID_QUIRK_NON_DESKTOP },
+
+        /* Oculus Rift DK1, DK2, and CV1 VR Headsets */
+        { "OVR", 0x0001, EDID_QUIRK_NON_DESKTOP },
+        { "OVR", 0x0003, EDID_QUIRK_NON_DESKTOP },
+        { "OVR", 0x0004, EDID_QUIRK_NON_DESKTOP },
+
+        /* Windows Mixed Reality Headsets */
+        { "ACR", 0x7fce, EDID_QUIRK_NON_DESKTOP },
+        { "HPN", 0x3515, EDID_QUIRK_NON_DESKTOP },
+        { "LEN", 0x0408, EDID_QUIRK_NON_DESKTOP },
+        { "LEN", 0xb800, EDID_QUIRK_NON_DESKTOP },
+        { "FUJ", 0x1970, EDID_QUIRK_NON_DESKTOP },
+        { "DEL", 0x7fce, EDID_QUIRK_NON_DESKTOP },
+        { "SEC", 0x144a, EDID_QUIRK_NON_DESKTOP },
+        { "AUS", 0xc102, EDID_QUIRK_NON_DESKTOP },
+
+        /* Sony PlayStation VR Headset */
+        { "SNY", 0x0704, EDID_QUIRK_NON_DESKTOP },
 };
 
 /*
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index 0eebe8ba8a2c..ad67203de715 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -121,6 +121,10 @@ int drm_mode_addfb(struct drm_device *dev,
         r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
         r.handles[0] = or->handle;
 
+        if (r.pixel_format == DRM_FORMAT_XRGB2101010 &&
+            dev->driver->driver_features & DRIVER_PREFER_XBGR_30BPP)
+                r.pixel_format = DRM_FORMAT_XBGR2101010;
+
         ret = drm_mode_addfb2(dev, &r, file_priv);
         if (ret)
                 return ret;
@@ -458,6 +462,12 @@ int drm_mode_getfb(struct drm_device *dev,
         if (!fb)
                 return -ENOENT;
 
+        /* Multi-planar framebuffers need getfb2. */
+        if (fb->format->num_planes > 1) {
+                ret = -EINVAL;
+                goto out;
+        }
+
         r->height = fb->height;
         r->width = fb->width;
         r->depth = fb->format->depth;
@@ -481,6 +491,7 @@ int drm_mode_getfb(struct drm_device *dev,
                 ret = -ENODEV;
         }
 
+out:
         drm_framebuffer_put(fb);
 
         return ret;
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index a351bd888a61..3166026a1874 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -837,9 +837,24 @@ struct drm_mm_node *drm_mm_scan_color_evict(struct drm_mm_scan *scan)
         if (!mm->color_adjust)
                 return NULL;
 
-        hole = list_first_entry(&mm->hole_stack, typeof(*hole), hole_stack);
-        hole_start = __drm_mm_hole_node_start(hole);
-        hole_end = hole_start + hole->hole_size;
+        /*
+         * The hole found during scanning should ideally be the first element
+         * in the hole_stack list, but due to side-effects in the driver it
+         * may not be.
+         */
+        list_for_each_entry(hole, &mm->hole_stack, hole_stack) {
+                hole_start = __drm_mm_hole_node_start(hole);
+                hole_end = hole_start + hole->hole_size;
+
+                if (hole_start <= scan->hit_start &&
+                    hole_end >= scan->hit_end)
+                        break;
+        }
+
+        /* We should only be called after we found the hole previously */
+        DRM_MM_BUG_ON(&hole->hole_stack == &mm->hole_stack);
+        if (unlikely(&hole->hole_stack == &mm->hole_stack))
+                return NULL;
 
         DRM_MM_BUG_ON(hole_start > scan->hit_start);
         DRM_MM_BUG_ON(hole_end < scan->hit_end);
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index 2d1643bdae78..527743394150 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -654,6 +654,26 @@ out:
 }
 
 /**
+ * drm_kms_helper_is_poll_worker - is %current task an output poll worker?
+ *
+ * Determine if %current task is an output poll worker.  This can be used
+ * to select distinct code paths for output polling versus other contexts.
+ *
+ * One use case is to avoid a deadlock between the output poll worker and
+ * the autosuspend worker wherein the latter waits for polling to finish
+ * upon calling drm_kms_helper_poll_disable(), while the former waits for
+ * runtime suspend to finish upon calling pm_runtime_get_sync() in a
+ * connector ->detect hook.
+ */
+bool drm_kms_helper_is_poll_worker(void)
+{
+        struct work_struct *work = current_work();
+
+        return work && work->func == output_poll_execute;
+}
+EXPORT_SYMBOL(drm_kms_helper_is_poll_worker);
+
+/**
  * drm_kms_helper_poll_disable - disable output polling
  * @dev: drm_device
  *
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 2b8bf2dd6387..f68ef1b3a28c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -286,7 +286,6 @@ static int g2d_init_cmdlist(struct g2d_data *g2d)
 
         node = kcalloc(G2D_CMDLIST_NUM, sizeof(*node), GFP_KERNEL);
         if (!node) {
-                dev_err(dev, "failed to allocate memory\n");
                 ret = -ENOMEM;
                 goto err;
         }
@@ -926,7 +925,7 @@ static void g2d_finish_event(struct g2d_data *g2d, u32 cmdlist_no)
         struct drm_device *drm_dev = g2d->subdrv.drm_dev;
         struct g2d_runqueue_node *runqueue_node = g2d->runqueue_node;
         struct drm_exynos_pending_g2d_event *e;
-        struct timeval now;
+        struct timespec64 now;
 
         if (list_empty(&runqueue_node->event_list))
                 return;
@@ -934,9 +933,9 @@ static void g2d_finish_event(struct g2d_data *g2d, u32 cmdlist_no)
         e = list_first_entry(&runqueue_node->event_list,
                              struct drm_exynos_pending_g2d_event, base.link);
 
-        do_gettimeofday(&now);
+        ktime_get_ts64(&now);
         e->event.tv_sec = now.tv_sec;
-        e->event.tv_usec = now.tv_usec;
+        e->event.tv_usec = now.tv_nsec / NSEC_PER_USEC;
         e->event.cmdlist_no = cmdlist_no;
 
         drm_send_event(drm_dev, &e->base);
@@ -1358,10 +1357,9 @@ int exynos_g2d_exec_ioctl(struct drm_device *drm_dev, void *data,
                 return -EFAULT;
 
         runqueue_node = kmem_cache_alloc(g2d->runqueue_slab, GFP_KERNEL);
-        if (!runqueue_node) {
-                dev_err(dev, "failed to allocate memory\n");
+        if (!runqueue_node)
                 return -ENOMEM;
-        }
+
         run_cmdlist = &runqueue_node->run_cmdlist;
         event_list = &runqueue_node->event_list;
         INIT_LIST_HEAD(run_cmdlist);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.h b/drivers/gpu/drm/exynos/exynos_drm_rotator.h
deleted file mode 100644
index 71a0b4c0c1e8..000000000000
--- a/drivers/gpu/drm/exynos/exynos_drm_rotator.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Copyright (c) 2012 Samsung Electronics Co., Ltd.
- *
- * Authors:
- *      YoungJun Cho <yj44.cho@samsung.com>
- *      Eunchul Kim <chulspro.kim@samsung.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#ifndef _EXYNOS_DRM_ROTATOR_H_
-#define _EXYNOS_DRM_ROTATOR_H_
-
-/* TODO */
-
-#endif
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index a4b75a46f946..abd84cbcf1c2 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -1068,10 +1068,13 @@ static void hdmi_audio_config(struct hdmi_context *hdata)
         /* Configuration I2S input ports. Configure I2S_PIN_SEL_0~4 */
         hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_0, HDMI_I2S_SEL_SCLK(5)
                         | HDMI_I2S_SEL_LRCK(6));
-        hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_1, HDMI_I2S_SEL_SDATA1(1)
-                        | HDMI_I2S_SEL_SDATA2(4));
+
+        hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_1, HDMI_I2S_SEL_SDATA1(3)
+                        | HDMI_I2S_SEL_SDATA0(4));
+
         hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_2, HDMI_I2S_SEL_SDATA3(1)
                         | HDMI_I2S_SEL_SDATA2(2));
+
         hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_3, HDMI_I2S_SEL_DSD(0));
 
         /* I2S_CON_1 & 2 */
diff --git a/drivers/gpu/drm/exynos/regs-fimc.h b/drivers/gpu/drm/exynos/regs-fimc.h
index 30496134a3d0..d7cbe53c4c01 100644
--- a/drivers/gpu/drm/exynos/regs-fimc.h
+++ b/drivers/gpu/drm/exynos/regs-fimc.h
@@ -569,7 +569,7 @@
 #define EXYNOS_CIIMGEFF_FIN_EMBOSSING           (4 << 26)
 #define EXYNOS_CIIMGEFF_FIN_SILHOUETTE          (5 << 26)
 #define EXYNOS_CIIMGEFF_FIN_MASK                        (7 << 26)
-#define EXYNOS_CIIMGEFF_PAT_CBCR_MASK           ((0xff < 13) | (0xff < 0))
+#define EXYNOS_CIIMGEFF_PAT_CBCR_MASK           ((0xff << 13) | (0xff << 0))
 
 /* Real input DMA size register */
 #define EXYNOS_CIREAL_ISIZE_AUTOLOAD_ENABLE     (1 << 31)
diff --git a/drivers/gpu/drm/exynos/regs-hdmi.h b/drivers/gpu/drm/exynos/regs-hdmi.h
index 04be0f7e8193..4420c203ac85 100644
--- a/drivers/gpu/drm/exynos/regs-hdmi.h
+++ b/drivers/gpu/drm/exynos/regs-hdmi.h
@@ -464,7 +464,7 @@
 
 /* I2S_PIN_SEL_1 */
 #define HDMI_I2S_SEL_SDATA1(x)          (((x) & 0x7) << 4)
-#define HDMI_I2S_SEL_SDATA2(x)          ((x) & 0x7)
+#define HDMI_I2S_SEL_SDATA0(x)          ((x) & 0x7)
 
 /* I2S_PIN_SEL_2 */
 #define HDMI_I2S_SEL_SDATA3(x)          (((x) & 0x7) << 4)
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index c8454ac43fae..db6b94dda5df 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -471,6 +471,7 @@ struct parser_exec_state {
          * used when ret from 2nd level batch buffer
          */
         int saved_buf_addr_type;
+        bool is_ctx_wa;
 
         struct cmd_info *info;
 
@@ -1715,6 +1716,11 @@ static int perform_bb_shadow(struct parser_exec_state *s)
         bb->accessing = true;
         bb->bb_start_cmd_va = s->ip_va;
 
+        if ((s->buf_type == BATCH_BUFFER_INSTRUCTION) && (!s->is_ctx_wa))
+                bb->bb_offset = s->ip_va - s->rb_va;
+        else
+                bb->bb_offset = 0;
+
         /*
          * ip_va saves the virtual address of the shadow batch buffer, while
          * ip_gma saves the graphics address of the original batch buffer.
@@ -2571,6 +2577,7 @@ static int scan_workload(struct intel_vgpu_workload *workload)
         s.ring_tail = gma_tail;
         s.rb_va = workload->shadow_ring_buffer_va;
         s.workload = workload;
+        s.is_ctx_wa = false;
 
         if ((bypass_scan_mask & (1 << workload->ring_id)) ||
                 gma_head == gma_tail)
@@ -2624,6 +2631,7 @@ static int scan_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
         s.ring_tail = gma_tail;
         s.rb_va = wa_ctx->indirect_ctx.shadow_va;
         s.workload = workload;
+        s.is_ctx_wa = true;
 
         if (!intel_gvt_ggtt_validate_range(s.vgpu, s.ring_start, s.ring_size)) {
                 ret = -EINVAL;
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 520fe3d0a882..c16a492449d7 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -750,6 +750,25 @@ static ssize_t intel_vgpu_rw(struct mdev_device *mdev, char *buf,
         return ret == 0 ? count : ret;
 }
 
+static bool gtt_entry(struct mdev_device *mdev, loff_t *ppos)
+{
+        struct intel_vgpu *vgpu = mdev_get_drvdata(mdev);
+        unsigned int index = VFIO_PCI_OFFSET_TO_INDEX(*ppos);
+        struct intel_gvt *gvt = vgpu->gvt;
+        int offset;
+
+        /* Only allow MMIO GGTT entry access */
+        if (index != PCI_BASE_ADDRESS_0)
+                return false;
+
+        offset = (u64)(*ppos & VFIO_PCI_OFFSET_MASK) -
+                intel_vgpu_get_bar_gpa(vgpu, PCI_BASE_ADDRESS_0);
+
+        return (offset >= gvt->device_info.gtt_start_offset &&
+                offset < gvt->device_info.gtt_start_offset + gvt_ggtt_sz(gvt)) ?
+                        true : false;
+}
+
 static ssize_t intel_vgpu_read(struct mdev_device *mdev, char __user *buf,
                         size_t count, loff_t *ppos)
 {
@@ -759,7 +778,21 @@ static ssize_t intel_vgpu_read(struct mdev_device *mdev, char __user *buf,
         while (count) {
                 size_t filled;
 
-                if (count >= 4 && !(*ppos % 4)) {
+                /* Only support GGTT entry 8 bytes read */
+                if (count >= 8 && !(*ppos % 8) &&
+                        gtt_entry(mdev, ppos)) {
+                        u64 val;
+
+                        ret = intel_vgpu_rw(mdev, (char *)&val, sizeof(val),
+                                        ppos, false);
+                        if (ret <= 0)
+                                goto read_err;
+
+                        if (copy_to_user(buf, &val, sizeof(val)))
+                                goto read_err;
+
+                        filled = 8;
+                } else if (count >= 4 && !(*ppos % 4)) {
                         u32 val;
 
                         ret = intel_vgpu_rw(mdev, (char *)&val, sizeof(val),
@@ -819,7 +852,21 @@ static ssize_t intel_vgpu_write(struct mdev_device *mdev,
         while (count) {
                 size_t filled;
 
-                if (count >= 4 && !(*ppos % 4)) {
+                /* Only support GGTT entry 8 bytes write */
+                if (count >= 8 && !(*ppos % 8) &&
+                        gtt_entry(mdev, ppos)) {
+                        u64 val;
+
+                        if (copy_from_user(&val, buf, sizeof(val)))
+                                goto write_err;
+
+                        ret = intel_vgpu_rw(mdev, (char *)&val, sizeof(val),
+                                        ppos, true);
+                        if (ret <= 0)
+                                goto write_err;
+
+                        filled = 8;
+                } else if (count >= 4 && !(*ppos % 4)) {
                         u32 val;
 
                         if (copy_from_user(&val, buf, sizeof(val)))
diff --git a/drivers/gpu/drm/i915/gvt/mmio_context.c b/drivers/gpu/drm/i915/gvt/mmio_context.c
index 74a9c7b5516e..a5bac83d53a9 100644
--- a/drivers/gpu/drm/i915/gvt/mmio_context.c
+++ b/drivers/gpu/drm/i915/gvt/mmio_context.c
@@ -120,6 +120,7 @@ static struct engine_mmio gen9_engine_mmio_list[] __cacheline_aligned = {
         {RCS, HALF_SLICE_CHICKEN3, 0xffff, true}, /* 0xe184 */
         {RCS, GEN9_HALF_SLICE_CHICKEN5, 0xffff, true}, /* 0xe188 */
         {RCS, GEN9_HALF_SLICE_CHICKEN7, 0xffff, true}, /* 0xe194 */
+        {RCS, GEN8_ROW_CHICKEN, 0xffff, true}, /* 0xe4f0 */
         {RCS, TRVATTL3PTRDW(0), 0, false}, /* 0x4de0 */
         {RCS, TRVATTL3PTRDW(1), 0, false}, /* 0x4de4 */
         {RCS, TRNULLDETCT, 0, false}, /* 0x4de8 */
@@ -557,9 +558,11 @@ void intel_gvt_switch_mmio(struct intel_vgpu *pre,
          * performace for batch mmio read/write, so we need
          * handle forcewake mannually.
          */
+        intel_runtime_pm_get(dev_priv);
         intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
         switch_mmio(pre, next, ring_id);
         intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
+        intel_runtime_pm_put(dev_priv);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
index a55b4975c154..638abe84857c 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -75,6 +75,54 @@ static void update_shadow_pdps(struct intel_vgpu_workload *workload)
         kunmap(page);
 }
 
+/*
+ * when populating shadow ctx from guest, we should not overrride oa related
+ * registers, so that they will not be overlapped by guest oa configs. Thus
+ * made it possible to capture oa data from host for both host and guests.
+ */
+static void sr_oa_regs(struct intel_vgpu_workload *workload,
+                u32 *reg_state, bool save)
+{
+        struct drm_i915_private *dev_priv = workload->vgpu->gvt->dev_priv;
+        u32 ctx_oactxctrl = dev_priv->perf.oa.ctx_oactxctrl_offset;
+        u32 ctx_flexeu0 = dev_priv->perf.oa.ctx_flexeu0_offset;
+        int i = 0;
+        u32 flex_mmio[] = {
+                i915_mmio_reg_offset(EU_PERF_CNTL0),
+                i915_mmio_reg_offset(EU_PERF_CNTL1),
+                i915_mmio_reg_offset(EU_PERF_CNTL2),
+                i915_mmio_reg_offset(EU_PERF_CNTL3),
+                i915_mmio_reg_offset(EU_PERF_CNTL4),
+                i915_mmio_reg_offset(EU_PERF_CNTL5),
+                i915_mmio_reg_offset(EU_PERF_CNTL6),
+        };
+
+        if (!workload || !reg_state || workload->ring_id != RCS)
+                return;
+
+        if (save) {
+                workload->oactxctrl = reg_state[ctx_oactxctrl + 1];
+
+                for (i = 0; i < ARRAY_SIZE(workload->flex_mmio); i++) {
+                        u32 state_offset = ctx_flexeu0 + i * 2;
+
+                        workload->flex_mmio[i] = reg_state[state_offset + 1];
+                }
+        } else {
+                reg_state[ctx_oactxctrl] =
+                        i915_mmio_reg_offset(GEN8_OACTXCONTROL);
+                reg_state[ctx_oactxctrl + 1] = workload->oactxctrl;
+
+                for (i = 0; i < ARRAY_SIZE(workload->flex_mmio); i++) {
+                        u32 state_offset = ctx_flexeu0 + i * 2;
+                        u32 mmio = flex_mmio[i];
+
+                        reg_state[state_offset] = mmio;
+                        reg_state[state_offset + 1] = workload->flex_mmio[i];
+                }
+        }
+}
+
 static int populate_shadow_context(struct intel_vgpu_workload *workload)
 {
         struct intel_vgpu *vgpu = workload->vgpu;
@@ -121,6 +169,7 @@ static int populate_shadow_context(struct intel_vgpu_workload *workload)
         page = i915_gem_object_get_page(ctx_obj, LRC_STATE_PN);
         shadow_ring_context = kmap(page);
 
+        sr_oa_regs(workload, (u32 *)shadow_ring_context, true);
 #define COPY_REG(name) \
         intel_gvt_hypervisor_read_gpa(vgpu, workload->ring_context_gpa \
                 + RING_CTX_OFF(name.val), &shadow_ring_context->name.val, 4)
@@ -149,6 +198,7 @@ static int populate_shadow_context(struct intel_vgpu_workload *workload)
                         sizeof(*shadow_ring_context),
                         I915_GTT_PAGE_SIZE - sizeof(*shadow_ring_context));
 
+        sr_oa_regs(workload, (u32 *)shadow_ring_context, false);
         kunmap(page);
         return 0;
 }
@@ -408,6 +458,17 @@ static int prepare_shadow_batch_buffer(struct intel_vgpu_workload *workload)
                         goto err;
                 }
 
+                /* For privilge batch buffer and not wa_ctx, the bb_start_cmd_va
+                 * is only updated into ring_scan_buffer, not real ring address
+                 * allocated in later copy_workload_to_ring_buffer. pls be noted
+                 * shadow_ring_buffer_va is now pointed to real ring buffer va
+                 * in copy_workload_to_ring_buffer.
+                 */
+
+                if (bb->bb_offset)
+                        bb->bb_start_cmd_va = workload->shadow_ring_buffer_va
+                                + bb->bb_offset;
+
                 /* relocate shadow batch buffer */
                 bb->bb_start_cmd_va[1] = i915_ggtt_offset(bb->vma);
                 if (gmadr_bytes == 8)
@@ -1078,10 +1139,12 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu)
 
         bitmap_zero(s->shadow_ctx_desc_updated, I915_NUM_ENGINES);
 
-        s->workloads = kmem_cache_create("gvt-g_vgpu_workload",
-                        sizeof(struct intel_vgpu_workload), 0,
-                        SLAB_HWCACHE_ALIGN,
-                        NULL);
+        s->workloads = kmem_cache_create_usercopy("gvt-g_vgpu_workload",
+                                                  sizeof(struct intel_vgpu_workload), 0,
+                                                  SLAB_HWCACHE_ALIGN,
+                                                  offsetof(struct intel_vgpu_workload, rb_tail),
+                                                  sizeof_field(struct intel_vgpu_workload, rb_tail),
+                                                  NULL);
 
         if (!s->workloads) {
                 ret = -ENOMEM;
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.h b/drivers/gpu/drm/i915/gvt/scheduler.h
index bab4097aa6d7..486ed57a4ad1 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.h
+++ b/drivers/gpu/drm/i915/gvt/scheduler.h
@@ -110,6 +110,10 @@ struct intel_vgpu_workload {
         /* shadow batch buffer */
         struct list_head shadow_bb;
         struct intel_shadow_wa_ctx wa_ctx;
+
+        /* oa registers */
+        u32 oactxctrl;
+        u32 flex_mmio[7];
 };
 
 struct intel_vgpu_shadow_bb {
@@ -120,6 +124,7 @@ struct intel_vgpu_shadow_bb {
         u32 *bb_start_cmd_va;
         unsigned int clflush;
         bool accessing;
+        unsigned long bb_offset;
 };
 
 #define workload_q_head(vgpu, ring_id) \
diff --git a/drivers/gpu/drm/i915/gvt/trace.h b/drivers/gpu/drm/i915/gvt/trace.h
index fc7831a62121..82093f1e8612 100644
--- a/drivers/gpu/drm/i915/gvt/trace.h
+++ b/drivers/gpu/drm/i915/gvt/trace.h
@@ -333,7 +333,7 @@ TRACE_EVENT(render_mmio,
         TP_PROTO(int old_id, int new_id, char *action, unsigned int reg,
                  unsigned int old_val, unsigned int new_val),
 
-        TP_ARGS(old_id, new_id, action, reg, new_val, old_val),
+        TP_ARGS(old_id, new_id, action, reg, old_val, new_val),
 
         TP_STRUCT__entry(
                 __field(int, old_id)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0359d6f870b4..7b5a9d7c9593 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -433,20 +433,28 @@ i915_gem_object_wait_reservation(struct reservation_object *resv,
                         dma_fence_put(shared[i]);
                 kfree(shared);
 
+                /*
+                 * If both shared fences and an exclusive fence exist,
+                 * then by construction the shared fences must be later
+                 * than the exclusive fence. If we successfully wait for
+                 * all the shared fences, we know that the exclusive fence
+                 * must all be signaled. If all the shared fences are
+                 * signaled, we can prune the array and recover the
+                 * floating references on the fences/requests.
+                 */
                 prune_fences = count && timeout >= 0;
         } else {
                 excl = reservation_object_get_excl_rcu(resv);
         }
 
-        if (excl && timeout >= 0) {
+        if (excl && timeout >= 0)
                 timeout = i915_gem_object_wait_fence(excl, flags, timeout,
                                                      rps_client);
-                prune_fences = timeout >= 0;
-        }
 
         dma_fence_put(excl);
 
-        /* Oportunistically prune the fences iff we know they have *all* been
+        /*
+         * Opportunistically prune the fences iff we know they have *all* been
          * signaled and that the reservation object has not been changed (i.e.
          * no new fences have been added).
          */
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index b33d2158c234..e5e6f6bb2b05 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -304,8 +304,9 @@ static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
 {
         struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
         struct intel_rps *rps = &dev_priv->gt_pm.rps;
-        u32 val;
+        bool boost = false;
         ssize_t ret;
+        u32 val;
 
         ret = kstrtou32(buf, 0, &val);
         if (ret)
@@ -317,8 +318,13 @@ static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
                 return -EINVAL;
 
         mutex_lock(&dev_priv->pcu_lock);
-        rps->boost_freq = val;
+        if (val != rps->boost_freq) {
+                rps->boost_freq = val;
+                boost = atomic_read(&rps->num_waiters);
+        }
         mutex_unlock(&dev_priv->pcu_lock);
+        if (boost)
+                schedule_work(&rps->work);
 
         return count;
 }
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index dbcf1a0586f9..8c2d778560f0 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2205,8 +2205,7 @@ static void intel_ddi_pre_enable_dp(struct intel_encoder *encoder,
                 intel_prepare_dp_ddi_buffers(encoder, crtc_state);
 
         intel_ddi_init_dp_buf_reg(encoder);
-        if (!is_mst)
-                intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
+        intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
         intel_dp_start_link_train(intel_dp);
         if (port != PORT_A || INTEL_GEN(dev_priv) >= 9)
                 intel_dp_stop_link_train(intel_dp);
@@ -2304,14 +2303,12 @@ static void intel_ddi_post_disable_dp(struct intel_encoder *encoder,
         struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
         struct intel_digital_port *dig_port = enc_to_dig_port(&encoder->base);
         struct intel_dp *intel_dp = &dig_port->dp;
-        bool is_mst = intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DP_MST);
 
         /*
          * Power down sink before disabling the port, otherwise we end
          * up getting interrupts from the sink on detecting link loss.
          */
-        if (!is_mst)
-                intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
+        intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
 
         intel_disable_ddi_buf(encoder);
 
diff --git a/drivers/gpu/drm/i915/intel_hangcheck.c b/drivers/gpu/drm/i915/intel_hangcheck.c
index 42e45ae87393..c8ea510629fa 100644
--- a/drivers/gpu/drm/i915/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/intel_hangcheck.c
@@ -246,7 +246,7 @@ engine_stuck(struct intel_engine_cs *engine, u64 acthd)
          */
         tmp = I915_READ_CTL(engine);
         if (tmp & RING_WAIT) {
-                i915_handle_error(dev_priv, 0,
+                i915_handle_error(dev_priv, BIT(engine->id),
                                   "Kicking stuck wait on %s",
                                   engine->name);
                 I915_WRITE_CTL(engine, tmp);
@@ -258,7 +258,7 @@ engine_stuck(struct intel_engine_cs *engine, u64 acthd)
                 default:
                         return ENGINE_DEAD;
                 case 1:
-                        i915_handle_error(dev_priv, 0,
+                        i915_handle_error(dev_priv, ALL_ENGINES,
                                           "Kicking stuck semaphore on %s",
                                           engine->name);
                         I915_WRITE_CTL(engine, tmp);
diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c
index 9a9961802f5c..e83af0f2be86 100644
--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
@@ -225,7 +225,11 @@ static void ipu_crtc_atomic_begin(struct drm_crtc *crtc,
                                   struct drm_crtc_state *old_crtc_state)
 {
         drm_crtc_vblank_on(crtc);
+}
 
+static void ipu_crtc_atomic_flush(struct drm_crtc *crtc,
+                                  struct drm_crtc_state *old_crtc_state)
+{
         spin_lock_irq(&crtc->dev->event_lock);
         if (crtc->state->event) {
                 WARN_ON(drm_crtc_vblank_get(crtc));
@@ -293,6 +297,7 @@ static const struct drm_crtc_helper_funcs ipu_helper_funcs = {
         .mode_set_nofb = ipu_crtc_mode_set_nofb,
         .atomic_check = ipu_crtc_atomic_check,
         .atomic_begin = ipu_crtc_atomic_begin,
+        .atomic_flush = ipu_crtc_atomic_flush,
         .atomic_disable = ipu_crtc_atomic_disable,
         .atomic_enable = ipu_crtc_atomic_enable,
 };
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
index d7e3583e608e..203f247d4854 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -22,6 +22,7 @@
 #include <drm/drm_plane_helper.h>
 
 #include "video/imx-ipu-v3.h"
+#include "imx-drm.h"
 #include "ipuv3-plane.h"
 
 struct ipu_plane_state {
@@ -272,7 +273,7 @@ static void ipu_plane_destroy(struct drm_plane *plane)
         kfree(ipu_plane);
 }
 
-void ipu_plane_state_reset(struct drm_plane *plane)
+static void ipu_plane_state_reset(struct drm_plane *plane)
 {
         struct ipu_plane_state *ipu_state;
 
@@ -292,7 +293,8 @@ void ipu_plane_state_reset(struct drm_plane *plane)
         plane->state = &ipu_state->base;
 }
 
-struct drm_plane_state *ipu_plane_duplicate_state(struct drm_plane *plane)
+static struct drm_plane_state *
+ipu_plane_duplicate_state(struct drm_plane *plane)
 {
         struct ipu_plane_state *state;
 
@@ -306,8 +308,8 @@ struct drm_plane_state *ipu_plane_duplicate_state(struct drm_plane *plane)
         return &state->base;
 }
 
-void ipu_plane_destroy_state(struct drm_plane *plane,
-                             struct drm_plane_state *state)
+static void ipu_plane_destroy_state(struct drm_plane *plane,
+                                    struct drm_plane_state *state)
 {
         struct ipu_plane_state *ipu_state = to_ipu_plane_state(state);
 
diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
index 5155f0179b61..05520202c967 100644
--- a/drivers/gpu/drm/meson/meson_crtc.c
+++ b/drivers/gpu/drm/meson/meson_crtc.c
@@ -36,6 +36,7 @@
 #include "meson_venc.h"
 #include "meson_vpp.h"
 #include "meson_viu.h"
+#include "meson_canvas.h"
 #include "meson_registers.h"
 
 /* CRTC definition */
@@ -192,6 +193,11 @@ void meson_crtc_irq(struct meson_drm *priv)
                 } else
                         meson_vpp_disable_interlace_vscaler_osd1(priv);
 
+                meson_canvas_setup(priv, MESON_CANVAS_ID_OSD1,
+                           priv->viu.osd1_addr, priv->viu.osd1_stride,
+                           priv->viu.osd1_height, MESON_CANVAS_WRAP_NONE,
+                           MESON_CANVAS_BLKMODE_LINEAR);
+
                 /* Enable OSD1 */
                 writel_bits_relaxed(VPP_OSD1_POSTBLEND, VPP_OSD1_POSTBLEND,
                                     priv->io_base + _REG(VPP_MISC));
diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
index 5e8b392b9d1f..8450d6ac8c9b 100644
--- a/drivers/gpu/drm/meson/meson_drv.h
+++ b/drivers/gpu/drm/meson/meson_drv.h
@@ -43,6 +43,9 @@ struct meson_drm {
                 bool osd1_commit;
                 uint32_t osd1_ctrl_stat;
                 uint32_t osd1_blk0_cfg[5];
+                uint32_t osd1_addr;
+                uint32_t osd1_stride;
+                uint32_t osd1_height;
         } viu;
 
         struct {
diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c
index c78a3a59f58c..12c80dfcff59 100644
--- a/drivers/gpu/drm/meson/meson_plane.c
+++ b/drivers/gpu/drm/meson/meson_plane.c
@@ -160,10 +160,9 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
         /* Update Canvas with buffer address */
         gem = drm_fb_cma_get_gem_obj(fb, 0);
 
-        meson_canvas_setup(priv, MESON_CANVAS_ID_OSD1,
-                           gem->paddr, fb->pitches[0],
-                           fb->height, MESON_CANVAS_WRAP_NONE,
-                           MESON_CANVAS_BLKMODE_LINEAR);
+        priv->viu.osd1_addr = gem->paddr;
+        priv->viu.osd1_stride = fb->pitches[0];
+        priv->viu.osd1_height = fb->height;
 
         spin_unlock_irqrestore(&priv->drm->event_lock, flags);
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
index 380f340204e8..debbbf0fd4bd 100644
--- a/drivers/gpu/drm/nouveau/nouveau_backlight.c
+++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c
@@ -134,7 +134,7 @@ nv50_get_intensity(struct backlight_device *bd)
         struct nouveau_encoder *nv_encoder = bl_get_data(bd);
         struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
         struct nvif_object *device = &drm->client.device.object;
-        int or = nv_encoder->or;
+        int or = ffs(nv_encoder->dcb->or) - 1;
         u32 div = 1025;
         u32 val;
 
@@ -149,7 +149,7 @@ nv50_set_intensity(struct backlight_device *bd)
         struct nouveau_encoder *nv_encoder = bl_get_data(bd);
         struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
         struct nvif_object *device = &drm->client.device.object;
-        int or = nv_encoder->or;
+        int or = ffs(nv_encoder->dcb->or) - 1;
         u32 div = 1025;
         u32 val = (bd->props.brightness * div) / 100;
 
@@ -170,7 +170,7 @@ nva3_get_intensity(struct backlight_device *bd)
         struct nouveau_encoder *nv_encoder = bl_get_data(bd);
         struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
         struct nvif_object *device = &drm->client.device.object;
-        int or = nv_encoder->or;
+        int or = ffs(nv_encoder->dcb->or) - 1;
         u32 div, val;
 
         div  = nvif_rd32(device, NV50_PDISP_SOR_PWM_DIV(or));
@@ -188,7 +188,7 @@ nva3_set_intensity(struct backlight_device *bd)
         struct nouveau_encoder *nv_encoder = bl_get_data(bd);
         struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
         struct nvif_object *device = &drm->client.device.object;
-        int or = nv_encoder->or;
+        int or = ffs(nv_encoder->dcb->or) - 1;
         u32 div, val;
 
         div = nvif_rd32(device, NV50_PDISP_SOR_PWM_DIV(or));
@@ -228,7 +228,7 @@ nv50_backlight_init(struct drm_connector *connector)
                         return -ENODEV;
         }
 
-        if (!nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(nv_encoder->or)))
+        if (!nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(ffs(nv_encoder->dcb->or) - 1)))
                 return 0;
 
         if (drm->client.device.info.chipset <= 0xa0 ||
@@ -268,13 +268,13 @@ nouveau_backlight_init(struct drm_device *dev)
         struct nvif_device *device = &drm->client.device;
         struct drm_connector *connector;
 
+        INIT_LIST_HEAD(&drm->bl_connectors);
+
         if (apple_gmux_present()) {
                 NV_INFO(drm, "Apple GMUX detected: not registering Nouveau backlight interface\n");
                 return 0;
         }
 
-        INIT_LIST_HEAD(&drm->bl_connectors);
-
         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
                 if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS &&
                     connector->connector_type != DRM_MODE_CONNECTOR_eDP)
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 69d6e61a01ec..6ed9cb053dfa 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -570,9 +570,15 @@ nouveau_connector_detect(struct drm_connector *connector, bool force)
                 nv_connector->edid = NULL;
         }
 
-        ret = pm_runtime_get_sync(connector->dev->dev);
-        if (ret < 0 && ret != -EACCES)
-                return conn_status;
+        /* Outputs are only polled while runtime active, so acquiring a
+         * runtime PM ref here is unnecessary (and would deadlock upon
+         * runtime suspend because it waits for polling to finish).
+         */
+        if (!drm_kms_helper_is_poll_worker()) {
+                ret = pm_runtime_get_sync(connector->dev->dev);
+                if (ret < 0 && ret != -EACCES)
+                        return conn_status;
+        }
 
         nv_encoder = nouveau_connector_ddc_detect(connector);
         if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
@@ -647,8 +653,10 @@ detect_analog:
 
  out:
 
-        pm_runtime_mark_last_busy(connector->dev->dev);
-        pm_runtime_put_autosuspend(connector->dev->dev);
+        if (!drm_kms_helper_is_poll_worker()) {
+                pm_runtime_mark_last_busy(connector->dev->dev);
+                pm_runtime_put_autosuspend(connector->dev->dev);
+        }
 
         return conn_status;
 }
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 6af3bc483c84..8bd739cfd00d 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -4469,6 +4469,7 @@ nv50_display_create(struct drm_device *dev)
         nouveau_display(dev)->fini = nv50_display_fini;
         disp->disp = &nouveau_display(dev)->disp;
         dev->mode_config.funcs = &nv50_disp_func;
+        dev->driver->driver_features |= DRIVER_PREFER_XBGR_30BPP;
         if (nouveau_atomic)
                 dev->driver->driver_features |= DRIVER_ATOMIC;
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
index 93946dcee319..1c12e58f44c2 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
@@ -1354,7 +1354,7 @@ nvkm_vmm_get_locked(struct nvkm_vmm *vmm, bool getref, bool mapref, bool sparse,
 
                 tail = this->addr + this->size;
                 if (vmm->func->page_block && next && next->page != p)
-                        tail = ALIGN_DOWN(addr, vmm->func->page_block);
+                        tail = ALIGN_DOWN(tail, vmm->func->page_block);
 
                 if (addr <= tail && tail - addr >= size) {
                         rb_erase(&this->tree, &vmm->free);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
index bf62303571b3..3695cde669f8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
@@ -301,7 +301,7 @@ nvkm_therm_attr_set(struct nvkm_therm *therm,
 void
 nvkm_therm_clkgate_enable(struct nvkm_therm *therm)
 {
-        if (!therm->func->clkgate_enable || !therm->clkgating_enabled)
+        if (!therm || !therm->func->clkgate_enable || !therm->clkgating_enabled)
                 return;
 
         nvkm_debug(&therm->subdev,
@@ -312,7 +312,7 @@ nvkm_therm_clkgate_enable(struct nvkm_therm *therm)
 void
 nvkm_therm_clkgate_fini(struct nvkm_therm *therm, bool suspend)
 {
-        if (!therm->func->clkgate_fini || !therm->clkgating_enabled)
+        if (!therm || !therm->func->clkgate_fini || !therm->clkgating_enabled)
                 return;
 
         nvkm_debug(&therm->subdev,
@@ -395,7 +395,7 @@ void
 nvkm_therm_clkgate_init(struct nvkm_therm *therm,
                         const struct nvkm_therm_clkgate_pack *p)
 {
-        if (!therm->func->clkgate_init || !therm->clkgating_enabled)
+        if (!therm || !therm->func->clkgate_init || !therm->clkgating_enabled)
                 return;
 
         therm->func->clkgate_init(therm, p);
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index b108eaabb6df..df9469a8fdb1 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -892,9 +892,11 @@ radeon_lvds_detect(struct drm_connector *connector, bool force)
         enum drm_connector_status ret = connector_status_disconnected;
         int r;
 
-        r = pm_runtime_get_sync(connector->dev->dev);
-        if (r < 0)
-                return connector_status_disconnected;
+        if (!drm_kms_helper_is_poll_worker()) {
+                r = pm_runtime_get_sync(connector->dev->dev);
+                if (r < 0)
+                        return connector_status_disconnected;
+        }
 
         if (encoder) {
                 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
@@ -917,8 +919,12 @@ radeon_lvds_detect(struct drm_connector *connector, bool force)
         /* check acpi lid status ??? */
 
         radeon_connector_update_scratch_regs(connector, ret);
-        pm_runtime_mark_last_busy(connector->dev->dev);
-        pm_runtime_put_autosuspend(connector->dev->dev);
+
+        if (!drm_kms_helper_is_poll_worker()) {
+                pm_runtime_mark_last_busy(connector->dev->dev);
+                pm_runtime_put_autosuspend(connector->dev->dev);
+        }
+
         return ret;
 }
 
@@ -1032,9 +1038,11 @@ radeon_vga_detect(struct drm_connector *connector, bool force)
         enum drm_connector_status ret = connector_status_disconnected;
         int r;
 
-        r = pm_runtime_get_sync(connector->dev->dev);
-        if (r < 0)
-                return connector_status_disconnected;
+        if (!drm_kms_helper_is_poll_worker()) {
+                r = pm_runtime_get_sync(connector->dev->dev);
+                if (r < 0)
+                        return connector_status_disconnected;
+        }
 
         encoder = radeon_best_single_encoder(connector);
         if (!encoder)
@@ -1101,8 +1109,10 @@ radeon_vga_detect(struct drm_connector *connector, bool force)
         radeon_connector_update_scratch_regs(connector, ret);
 
 out:
-        pm_runtime_mark_last_busy(connector->dev->dev);
-        pm_runtime_put_autosuspend(connector->dev->dev);
+        if (!drm_kms_helper_is_poll_worker()) {
+                pm_runtime_mark_last_busy(connector->dev->dev);
+                pm_runtime_put_autosuspend(connector->dev->dev);
+        }
 
         return ret;
 }
@@ -1166,9 +1176,11 @@ radeon_tv_detect(struct drm_connector *connector, bool force)
         if (!radeon_connector->dac_load_detect)
                 return ret;
 
-        r = pm_runtime_get_sync(connector->dev->dev);
-        if (r < 0)
-                return connector_status_disconnected;
+        if (!drm_kms_helper_is_poll_worker()) {
+                r = pm_runtime_get_sync(connector->dev->dev);
+                if (r < 0)
+                        return connector_status_disconnected;
+        }
 
         encoder = radeon_best_single_encoder(connector);
         if (!encoder)
@@ -1180,8 +1192,12 @@ radeon_tv_detect(struct drm_connector *connector, bool force)
         if (ret == connector_status_connected)
                 ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, false);
         radeon_connector_update_scratch_regs(connector, ret);
-        pm_runtime_mark_last_busy(connector->dev->dev);
-        pm_runtime_put_autosuspend(connector->dev->dev);
+
+        if (!drm_kms_helper_is_poll_worker()) {
+                pm_runtime_mark_last_busy(connector->dev->dev);
+                pm_runtime_put_autosuspend(connector->dev->dev);
+        }
+
         return ret;
 }
 
@@ -1244,9 +1260,11 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
         enum drm_connector_status ret = connector_status_disconnected;
         bool dret = false, broken_edid = false;
 
-        r = pm_runtime_get_sync(connector->dev->dev);
-        if (r < 0)
-                return connector_status_disconnected;
+        if (!drm_kms_helper_is_poll_worker()) {
+                r = pm_runtime_get_sync(connector->dev->dev);
+                if (r < 0)
+                        return connector_status_disconnected;
+        }
 
         if (radeon_connector->detected_hpd_without_ddc) {
                 force = true;
@@ -1429,8 +1447,10 @@ out:
         }
 
 exit:
-        pm_runtime_mark_last_busy(connector->dev->dev);
-        pm_runtime_put_autosuspend(connector->dev->dev);
+        if (!drm_kms_helper_is_poll_worker()) {
+                pm_runtime_mark_last_busy(connector->dev->dev);
+                pm_runtime_put_autosuspend(connector->dev->dev);
+        }
 
         return ret;
 }
@@ -1681,9 +1701,11 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
         if (radeon_dig_connector->is_mst)
                 return connector_status_disconnected;
 
-        r = pm_runtime_get_sync(connector->dev->dev);
-        if (r < 0)
-                return connector_status_disconnected;
+        if (!drm_kms_helper_is_poll_worker()) {
+                r = pm_runtime_get_sync(connector->dev->dev);
+                if (r < 0)
+                        return connector_status_disconnected;
+        }
 
         if (!force && radeon_check_hpd_status_unchanged(connector)) {
                 ret = connector->status;
@@ -1770,8 +1792,10 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
         }
 
 out:
-        pm_runtime_mark_last_busy(connector->dev->dev);
-        pm_runtime_put_autosuspend(connector->dev->dev);
+        if (!drm_kms_helper_is_poll_worker()) {
+                pm_runtime_mark_last_busy(connector->dev->dev);
+                pm_runtime_put_autosuspend(connector->dev->dev);
+        }
 
         return ret;
 }
diff --git a/drivers/gpu/drm/sun4i/sun4i_crtc.c b/drivers/gpu/drm/sun4i/sun4i_crtc.c
index 3b2d11b675e8..2d7c57406715 100644
--- a/drivers/gpu/drm/sun4i/sun4i_crtc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c
@@ -111,6 +111,8 @@ static void sun4i_crtc_atomic_disable(struct drm_crtc *crtc,
 
         DRM_DEBUG_DRIVER("Disabling the CRTC\n");
 
+        drm_crtc_vblank_off(crtc);
+
         sun4i_tcon_set_status(scrtc->tcon, encoder, false);
 
         if (crtc->state->event && !crtc->state->active) {
@@ -131,6 +133,8 @@ static void sun4i_crtc_atomic_enable(struct drm_crtc *crtc,
         DRM_DEBUG_DRIVER("Enabling the CRTC\n");
 
         sun4i_tcon_set_status(scrtc->tcon, encoder, true);
+
+        drm_crtc_vblank_on(crtc);
 }
 
 static void sun4i_crtc_mode_set_nofb(struct drm_crtc *crtc)
diff --git a/drivers/gpu/drm/sun4i/sun4i_dotclock.c b/drivers/gpu/drm/sun4i/sun4i_dotclock.c
index 023f39bda633..e36004fbe453 100644
--- a/drivers/gpu/drm/sun4i/sun4i_dotclock.c
+++ b/drivers/gpu/drm/sun4i/sun4i_dotclock.c
@@ -132,10 +132,13 @@ static int sun4i_dclk_get_phase(struct clk_hw *hw)
 static int sun4i_dclk_set_phase(struct clk_hw *hw, int degrees)
 {
         struct sun4i_dclk *dclk = hw_to_dclk(hw);
+        u32 val = degrees / 120;
+
+        val <<= 28;
 
         regmap_update_bits(dclk->regmap, SUN4I_TCON0_IO_POL_REG,
                            GENMASK(29, 28),
-                           degrees / 120);
+                           val);
 
         return 0;
 }
diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 7f0705ef9f4e..50d19605c38f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -113,7 +113,7 @@ static int sun4i_drv_bind(struct device *dev)
         /* drm_vblank_init calls kcalloc, which can fail */
         ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
         if (ret)
-                goto free_mem_region;
+                goto cleanup_mode_config;
 
         drm->irq_enabled = true;
 
@@ -141,7 +141,6 @@ finish_poll:
         sun4i_framebuffer_free(drm);
 cleanup_mode_config:
         drm_mode_config_cleanup(drm);
-free_mem_region:
         of_reserved_mem_device_release(dev);
 free_drm:
         drm_dev_unref(drm);
diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
index 500b6fb3e028..fa4bcd092eaf 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
@@ -538,7 +538,8 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master,
                                              &sun4i_hdmi_regmap_config);
         if (IS_ERR(hdmi->regmap)) {
                 dev_err(dev, "Couldn't create HDMI encoder regmap\n");
-                return PTR_ERR(hdmi->regmap);
+                ret = PTR_ERR(hdmi->regmap);
+                goto err_disable_mod_clk;
         }
 
         ret = sun4i_tmds_create(hdmi);
@@ -551,7 +552,8 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master,
                 hdmi->ddc_parent_clk = devm_clk_get(dev, "ddc");
                 if (IS_ERR(hdmi->ddc_parent_clk)) {
                         dev_err(dev, "Couldn't get the HDMI DDC clock\n");
-                        return PTR_ERR(hdmi->ddc_parent_clk);
+                        ret = PTR_ERR(hdmi->ddc_parent_clk);
+                        goto err_disable_mod_clk;
                 }
         } else {
                 hdmi->ddc_parent_clk = hdmi->tmds_clk;
diff --git a/drivers/gpu/drm/sun4i/sun4i_rgb.c b/drivers/gpu/drm/sun4i/sun4i_rgb.c
index a2a697a099e6..f2fa1f210509 100644
--- a/drivers/gpu/drm/sun4i/sun4i_rgb.c
+++ b/drivers/gpu/drm/sun4i/sun4i_rgb.c
@@ -92,6 +92,8 @@ static enum drm_mode_status sun4i_rgb_mode_valid(struct drm_encoder *crtc,
 
         DRM_DEBUG_DRIVER("Vertical parameters OK\n");
 
+        tcon->dclk_min_div = 6;
+        tcon->dclk_max_div = 127;
         rounded_rate = clk_round_rate(tcon->dclk, rate);
         if (rounded_rate < rate)
                 return MODE_CLOCK_LOW;
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index 1a114e380f13..c3d92d537240 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -103,10 +103,13 @@ static void sun4i_tcon_channel_set_status(struct sun4i_tcon *tcon, int channel,
                 return;
         }
 
-        if (enabled)
+        if (enabled) {
                 clk_prepare_enable(clk);
-        else
+                clk_rate_exclusive_get(clk);
+        } else {
+                clk_rate_exclusive_put(clk);
                 clk_disable_unprepare(clk);
+        }
 }
 
 static void sun4i_tcon_lvds_set_status(struct sun4i_tcon *tcon,
@@ -339,6 +342,9 @@ static void sun4i_tcon0_mode_set_lvds(struct sun4i_tcon *tcon,
         regmap_update_bits(tcon->regs, SUN4I_TCON_GCTL_REG,
                            SUN4I_TCON_GCTL_IOMAP_MASK,
                            SUN4I_TCON_GCTL_IOMAP_TCON0);
+
+        /* Enable the output on the pins */
+        regmap_write(tcon->regs, SUN4I_TCON0_IO_TRI_REG, 0xe0000000);
 }
 
 static void sun4i_tcon0_mode_set_rgb(struct sun4i_tcon *tcon,
@@ -921,52 +927,56 @@ static int sun4i_tcon_bind(struct device *dev, struct device *master,
                 return ret;
         }
 
-        /*
-         * This can only be made optional since we've had DT nodes
-         * without the LVDS reset properties.
-         *
-         * If the property is missing, just disable LVDS, and print a
-         * warning.
-         */
-        tcon->lvds_rst = devm_reset_control_get_optional(dev, "lvds");
-        if (IS_ERR(tcon->lvds_rst)) {
-                dev_err(dev, "Couldn't get our reset line\n");
-                return PTR_ERR(tcon->lvds_rst);
-        } else if (tcon->lvds_rst) {
-                has_lvds_rst = true;
-                reset_control_reset(tcon->lvds_rst);
-        } else {
-                has_lvds_rst = false;
-        }
+        if (tcon->quirks->supports_lvds) {
+                /*
+                 * This can only be made optional since we've had DT
+                 * nodes without the LVDS reset properties.
+                 *
+                 * If the property is missing, just disable LVDS, and
+                 * print a warning.
+                 */
+                tcon->lvds_rst = devm_reset_control_get_optional(dev, "lvds");
+                if (IS_ERR(tcon->lvds_rst)) {
+                        dev_err(dev, "Couldn't get our reset line\n");
+                        return PTR_ERR(tcon->lvds_rst);
+                } else if (tcon->lvds_rst) {
+                        has_lvds_rst = true;
+                        reset_control_reset(tcon->lvds_rst);
+                } else {
+                        has_lvds_rst = false;
+                }
 
-        /*
-         * This can only be made optional since we've had DT nodes
-         * without the LVDS reset properties.
-         *
-         * If the property is missing, just disable LVDS, and print a
-         * warning.
-         */
-        if (tcon->quirks->has_lvds_alt) {
-                tcon->lvds_pll = devm_clk_get(dev, "lvds-alt");
-                if (IS_ERR(tcon->lvds_pll)) {
-                        if (PTR_ERR(tcon->lvds_pll) == -ENOENT) {
-                                has_lvds_alt = false;
+                /*
+                 * This can only be made optional since we've had DT
+                 * nodes without the LVDS reset properties.
+                 *
+                 * If the property is missing, just disable LVDS, and
+                 * print a warning.
+                 */
+                if (tcon->quirks->has_lvds_alt) {
+                        tcon->lvds_pll = devm_clk_get(dev, "lvds-alt");
+                        if (IS_ERR(tcon->lvds_pll)) {
+                                if (PTR_ERR(tcon->lvds_pll) == -ENOENT) {
+                                        has_lvds_alt = false;
+                                } else {
+                                        dev_err(dev, "Couldn't get the LVDS PLL\n");
+                                        return PTR_ERR(tcon->lvds_pll);
+                                }
                         } else {
-                                dev_err(dev, "Couldn't get the LVDS PLL\n");
-                                return PTR_ERR(tcon->lvds_pll);
+                                has_lvds_alt = true;
                         }
-                } else {
-                        has_lvds_alt = true;
                 }
-        }
 
-        if (!has_lvds_rst || (tcon->quirks->has_lvds_alt && !has_lvds_alt)) {
-                dev_warn(dev,
-                         "Missing LVDS properties, Please upgrade your DT\n");
-                dev_warn(dev, "LVDS output disabled\n");
-                can_lvds = false;
+                if (!has_lvds_rst ||
+                    (tcon->quirks->has_lvds_alt && !has_lvds_alt)) {
+                        dev_warn(dev, "Missing LVDS properties, Please upgrade your DT\n");
+                        dev_warn(dev, "LVDS output disabled\n");
+                        can_lvds = false;
+                } else {
+                        can_lvds = true;
+                }
         } else {
-                can_lvds = true;
+                can_lvds = false;
         }
 
         ret = sun4i_tcon_init_clocks(dev, tcon);
@@ -1195,6 +1205,7 @@ static const struct sun4i_tcon_quirks sun8i_a33_quirks = {
 };
 
 static const struct sun4i_tcon_quirks sun8i_a83t_lcd_quirks = {
+        .supports_lvds          = true,
         .has_channel_0          = true,
 };
 
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.h b/drivers/gpu/drm/sun4i/sun4i_tcon.h
index d3a945b7bb60..161e09427124 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.h
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.h
@@ -177,6 +177,7 @@ struct sun4i_tcon_quirks {
         bool    has_lvds_alt;   /* Does the LVDS clock have a parent other than the TCON clock? */
         bool    needs_de_be_mux; /* sun6i needs mux to select backend */
         bool    needs_edp_reset; /* a80 edp reset needed for tcon0 access */
+        bool    supports_lvds;   /* Does the TCON support an LVDS output? */
 
         /* callback to handle tcon muxing options */
         int     (*set_mux)(struct sun4i_tcon *, const struct drm_encoder *);
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 71152776b04c..616c9634585e 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -1916,8 +1916,12 @@ cleanup:
         if (!IS_ERR(primary))
                 drm_plane_cleanup(primary);
 
-        if (group && tegra->domain) {
-                iommu_detach_group(tegra->domain, group);
+        if (group && dc->domain) {
+                if (group == tegra->group) {
+                        iommu_detach_group(dc->domain, group);
+                        tegra->group = NULL;
+                }
+
                 dc->domain = NULL;
         }
 
@@ -1926,8 +1930,10 @@ cleanup:
 
 static int tegra_dc_exit(struct host1x_client *client)
 {
+        struct drm_device *drm = dev_get_drvdata(client->parent);
         struct iommu_group *group = iommu_group_get(client->dev);
         struct tegra_dc *dc = host1x_client_to_dc(client);
+        struct tegra_drm *tegra = drm->dev_private;
         int err;
 
         devm_free_irq(dc->dev, dc->irq, dc);
@@ -1939,7 +1945,11 @@ static int tegra_dc_exit(struct host1x_client *client)
         }
 
         if (group && dc->domain) {
-                iommu_detach_group(dc->domain, group);
+                if (group == tegra->group) {
+                        iommu_detach_group(dc->domain, group);
+                        tegra->group = NULL;
+                }
+
                 dc->domain = NULL;
         }
 
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index e20e013151f0..7afe2f635f74 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -222,6 +222,7 @@ static void tegra_drm_unload(struct drm_device *drm)
 
         drm_kms_helper_poll_fini(drm);
         tegra_drm_fb_exit(drm);
+        drm_atomic_helper_shutdown(drm);
         drm_mode_config_cleanup(drm);
 
         err = host1x_device_exit(device);
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 4d2ed966f9e3..87c5d89bc9ba 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -1072,7 +1072,6 @@ static int tegra_dsi_exit(struct host1x_client *client)
         struct tegra_dsi *dsi = host1x_client_to_dsi(client);
 
         tegra_output_exit(&dsi->output);
-        regulator_disable(dsi->vdd);
 
         return 0;
 }
diff --git a/drivers/gpu/drm/tegra/plane.c b/drivers/gpu/drm/tegra/plane.c
index 6d6e2d0091eb..176ef46c615c 100644
--- a/drivers/gpu/drm/tegra/plane.c
+++ b/drivers/gpu/drm/tegra/plane.c
@@ -307,6 +307,10 @@ int tegra_plane_format_get_alpha(unsigned int opaque, unsigned int *alpha)
         case WIN_COLOR_DEPTH_B8G8R8X8:
                 *alpha = WIN_COLOR_DEPTH_B8G8R8A8;
                 return 0;
+
+        case WIN_COLOR_DEPTH_B5G6R5:
+                *alpha = opaque;
+                return 0;
         }
 
         return -EINVAL;
@@ -340,9 +344,6 @@ void tegra_plane_check_dependent(struct tegra_plane *tegra,
         unsigned int zpos[2];
         unsigned int i;
 
-        for (i = 0; i < 3; i++)
-                state->dependent[i] = false;
-
         for (i = 0; i < 2; i++)
                 zpos[i] = 0;
 
@@ -356,6 +357,8 @@ void tegra_plane_check_dependent(struct tegra_plane *tegra,
 
                 index = tegra_plane_get_overlap_index(tegra, p);
 
+                state->dependent[index] = false;
+
                 /*
                  * If any of the other planes is on top of this plane and uses
                  * a format with an alpha component, mark this plane as being
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index b5b335c9b2bb..2ebdc6d5a76e 100644
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -159,10 +159,15 @@ static int udl_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
         unsigned long start = vma->vm_start;
         unsigned long size = vma->vm_end - vma->vm_start;
-        unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
+        unsigned long offset;
         unsigned long page, pos;
 
-        if (offset + size > info->fix.smem_len)
+        if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
+                return -EINVAL;
+
+        offset = vma->vm_pgoff << PAGE_SHIFT;
+
+        if (offset > info->fix.smem_len || size > info->fix.smem_len - offset)
                 return -EINVAL;
 
         pos = (unsigned long)info->fix.smem_start + offset;
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index a14e8a2ec682..7bdf6f0e58a5 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -198,6 +198,9 @@ static int virtio_gpu_getparam_ioctl(struct drm_device *dev, void *data,
         case VIRTGPU_PARAM_3D_FEATURES:
                 value = vgdev->has_virgl_3d == true ? 1 : 0;
                 break;
+        case VIRTGPU_PARAM_CAPSET_QUERY_FIX:
+                value = 1;
+                break;
         default:
                 return -EINVAL;
         }
@@ -473,7 +476,7 @@ static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
 {
         struct virtio_gpu_device *vgdev = dev->dev_private;
         struct drm_virtgpu_get_caps *args = data;
-        int size;
+        unsigned size, host_caps_size;
         int i;
         int found_valid = -1;
         int ret;
@@ -483,6 +486,10 @@ static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
         if (vgdev->num_capsets == 0)
                 return -ENOSYS;
 
+        /* don't allow userspace to pass 0 */
+        if (args->size == 0)
+                return -EINVAL;
+
         spin_lock(&vgdev->display_info_lock);
         for (i = 0; i < vgdev->num_capsets; i++) {
                 if (vgdev->capsets[i].id == args->cap_set_id) {
@@ -498,11 +505,9 @@ static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
                 return -EINVAL;
         }
 
-        size = vgdev->capsets[found_valid].max_size;
-        if (args->size > size) {
-                spin_unlock(&vgdev->display_info_lock);
-                return -EINVAL;
-        }
+        host_caps_size = vgdev->capsets[found_valid].max_size;
+        /* only copy to user the minimum of the host caps size or the guest caps size */
+        size = min(args->size, host_caps_size);
 
         list_for_each_entry(cache_ent, &vgdev->cap_cache, head) {
                 if (cache_ent->id == args->cap_set_id &&
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 61a03ac90f8c..70e1a8820a7c 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1338,6 +1338,19 @@ static void __vmw_svga_disable(struct vmw_private *dev_priv)
  */
 void vmw_svga_disable(struct vmw_private *dev_priv)
 {
+        /*
+         * Disabling SVGA will turn off device modesetting capabilities, so
+         * notify KMS about that so that it doesn't cache atomic state that
+         * isn't valid anymore, for example crtcs turned on.
+         * Strictly we'd want to do this under the SVGA lock (or an SVGA mutex),
+         * but vmw_kms_lost_device() takes the reservation sem and thus we'll
+         * end up with lock order reversal. Thus, a master may actually perform
+         * a new modeset just after we call vmw_kms_lost_device() and race with
+         * vmw_svga_disable(), but that should at worst cause atomic KMS state
+         * to be inconsistent with the device, causing modesetting problems.
+         *
+         */
+        vmw_kms_lost_device(dev_priv->dev);
         ttm_write_lock(&dev_priv->reservation_sem, false);
         spin_lock(&dev_priv->svga_lock);
         if (dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 9e60de95b863..f34f368c1a2e 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -949,6 +949,7 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv);
 int vmw_kms_suspend(struct drm_device *dev);
 int vmw_kms_resume(struct drm_device *dev);
+void vmw_kms_lost_device(struct drm_device *dev);
 
 int vmw_dumb_create(struct drm_file *file_priv,
                     struct drm_device *dev,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 3628a9fe705f..f11601b6fd74 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -31,7 +31,6 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_rect.h>
 
-
 /* Might need a hrtimer here? */
 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
 
@@ -2513,9 +2512,12 @@ void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv,
  * Helper to be used if an error forces the caller to undo the actions of
  * vmw_kms_helper_resource_prepare.
  */
-void vmw_kms_helper_resource_revert(struct vmw_resource *res)
+void vmw_kms_helper_resource_revert(struct vmw_validation_ctx *ctx)
 {
-        vmw_kms_helper_buffer_revert(res->backup);
+        struct vmw_resource *res = ctx->res;
+
+        vmw_kms_helper_buffer_revert(ctx->buf);
+        vmw_dmabuf_unreference(&ctx->buf);
         vmw_resource_unreserve(res, false, NULL, 0);
         mutex_unlock(&res->dev_priv->cmdbuf_mutex);
 }
@@ -2532,10 +2534,14 @@ void vmw_kms_helper_resource_revert(struct vmw_resource *res)
  * interrupted by a signal.
  */
 int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
-                                    bool interruptible)
+                                    bool interruptible,
+                                    struct vmw_validation_ctx *ctx)
 {
         int ret = 0;
 
+        ctx->buf = NULL;
+        ctx->res = res;
+
         if (interruptible)
                 ret = mutex_lock_interruptible(&res->dev_priv->cmdbuf_mutex);
         else
@@ -2555,6 +2561,8 @@ int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
                                                     false);
                 if (ret)
                         goto out_unreserve;
+
+                ctx->buf = vmw_dmabuf_reference(res->backup);
         }
         ret = vmw_resource_validate(res);
         if (ret)
@@ -2562,7 +2570,7 @@ int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
         return 0;
 
 out_revert:
-        vmw_kms_helper_buffer_revert(res->backup);
+        vmw_kms_helper_buffer_revert(ctx->buf);
 out_unreserve:
         vmw_resource_unreserve(res, false, NULL, 0);
 out_unlock:
@@ -2578,11 +2586,13 @@ out_unlock:
  * @out_fence: Optional pointer to a fence pointer. If non-NULL, a
  * ref-counted fence pointer is returned here.
  */
-void vmw_kms_helper_resource_finish(struct vmw_resource *res,
-                             struct vmw_fence_obj **out_fence)
+void vmw_kms_helper_resource_finish(struct vmw_validation_ctx *ctx,
+                                    struct vmw_fence_obj **out_fence)
 {
-        if (res->backup || out_fence)
-                vmw_kms_helper_buffer_finish(res->dev_priv, NULL, res->backup,
+        struct vmw_resource *res = ctx->res;
+
+        if (ctx->buf || out_fence)
+                vmw_kms_helper_buffer_finish(res->dev_priv, NULL, ctx->buf,
                                              out_fence, NULL);
 
         vmw_resource_unreserve(res, false, NULL, 0);
@@ -2896,3 +2906,13 @@ int vmw_kms_resume(struct drm_device *dev)
 
         return ret;
 }
+
+/**
+ * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost
+ *
+ * @dev: Pointer to the drm device
+ */
+void vmw_kms_lost_device(struct drm_device *dev)
+{
+        drm_atomic_helper_shutdown(dev);
+}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
index 4e8749a8717e..6b7c012719f1 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
@@ -241,6 +241,11 @@ struct vmw_display_unit {
         int set_gui_y;
 };
 
+struct vmw_validation_ctx {
+        struct vmw_resource *res;
+        struct vmw_dma_buffer *buf;
+};
+
 #define vmw_crtc_to_du(x) \
         container_of(x, struct vmw_display_unit, crtc)
 #define vmw_connector_to_du(x) \
@@ -298,9 +303,10 @@ void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv,
                                   struct drm_vmw_fence_rep __user *
                                   user_fence_rep);
 int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
-                                    bool interruptible);
-void vmw_kms_helper_resource_revert(struct vmw_resource *res);
-void vmw_kms_helper_resource_finish(struct vmw_resource *res,
+                                    bool interruptible,
+                                    struct vmw_validation_ctx *ctx);
+void vmw_kms_helper_resource_revert(struct vmw_validation_ctx *ctx);
+void vmw_kms_helper_resource_finish(struct vmw_validation_ctx *ctx,
                                     struct vmw_fence_obj **out_fence);
 int vmw_kms_readback(struct vmw_private *dev_priv,
                      struct drm_file *file_priv,
@@ -446,5 +452,4 @@ int vmw_kms_stdu_dma(struct vmw_private *dev_priv,
 
 int vmw_kms_set_config(struct drm_mode_set *set,
                        struct drm_modeset_acquire_ctx *ctx);
-
 #endif
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
index 419185f60278..648f8127f65a 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
@@ -938,12 +938,13 @@ int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
         struct vmw_framebuffer_surface *vfbs =
                 container_of(framebuffer, typeof(*vfbs), base);
         struct vmw_kms_sou_surface_dirty sdirty;
+        struct vmw_validation_ctx ctx;
         int ret;
 
         if (!srf)
                 srf = &vfbs->surface->res;
 
-        ret = vmw_kms_helper_resource_prepare(srf, true);
+        ret = vmw_kms_helper_resource_prepare(srf, true, &ctx);
         if (ret)
                 return ret;
 
@@ -963,7 +964,7 @@ int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
         ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
                                    dest_x, dest_y, num_clips, inc,
                                    &sdirty.base);
-        vmw_kms_helper_resource_finish(srf, out_fence);
+        vmw_kms_helper_resource_finish(&ctx, out_fence);
 
         return ret;
 }
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index 8eec88920851..67331f01ef32 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -916,12 +916,13 @@ int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
         struct vmw_framebuffer_surface *vfbs =
                 container_of(framebuffer, typeof(*vfbs), base);
         struct vmw_stdu_dirty sdirty;
+        struct vmw_validation_ctx ctx;
         int ret;
 
         if (!srf)
                 srf = &vfbs->surface->res;
 
-        ret = vmw_kms_helper_resource_prepare(srf, true);
+        ret = vmw_kms_helper_resource_prepare(srf, true, &ctx);
         if (ret)
                 return ret;
 
@@ -945,7 +946,7 @@ int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
                                    dest_x, dest_y, num_clips, inc,
                                    &sdirty.base);
 out_finish:
-        vmw_kms_helper_resource_finish(srf, out_fence);
+        vmw_kms_helper_resource_finish(&ctx, out_fence);
 
         return ret;
 }
diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index 658fa2d3e40c..48685cddbad1 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -1089,7 +1089,7 @@ static void ipu_irq_handler(struct irq_desc *desc)
 {
         struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
-        const int int_reg[] = { 0, 1, 2, 3, 10, 11, 12, 13, 14};
+        static const int int_reg[] = { 0, 1, 2, 3, 10, 11, 12, 13, 14};
 
         chained_irq_enter(chip, desc);
 
@@ -1102,7 +1102,7 @@ static void ipu_err_irq_handler(struct irq_desc *desc)
 {
         struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
         struct irq_chip *chip = irq_desc_get_chip(desc);
-        const int int_reg[] = { 4, 5, 8, 9};
+        static const int int_reg[] = { 4, 5, 8, 9};
 
         chained_irq_enter(chip, desc);
 
diff --git a/drivers/gpu/ipu-v3/ipu-cpmem.c b/drivers/gpu/ipu-v3/ipu-cpmem.c
index bb9c087e6c0d..9f2d9ec42add 100644
--- a/drivers/gpu/ipu-v3/ipu-cpmem.c
+++ b/drivers/gpu/ipu-v3/ipu-cpmem.c
@@ -788,12 +788,14 @@ int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image)
         case V4L2_PIX_FMT_SGBRG8:
         case V4L2_PIX_FMT_SGRBG8:
         case V4L2_PIX_FMT_SRGGB8:
+        case V4L2_PIX_FMT_GREY:
                 offset = image->rect.left + image->rect.top * pix->bytesperline;
                 break;
         case V4L2_PIX_FMT_SBGGR16:
         case V4L2_PIX_FMT_SGBRG16:
         case V4L2_PIX_FMT_SGRBG16:
         case V4L2_PIX_FMT_SRGGB16:
+        case V4L2_PIX_FMT_Y16:
                 offset = image->rect.left * 2 +
                          image->rect.top * pix->bytesperline;
                 break;
diff --git a/drivers/gpu/ipu-v3/ipu-csi.c b/drivers/gpu/ipu-v3/ipu-csi.c
index 24e12b87a0cb..caa05b0702e1 100644
--- a/drivers/gpu/ipu-v3/ipu-csi.c
+++ b/drivers/gpu/ipu-v3/ipu-csi.c
@@ -288,6 +288,7 @@ static int mbus_code_to_bus_cfg(struct ipu_csi_bus_config *cfg, u32 mbus_code)
         case MEDIA_BUS_FMT_SGBRG10_1X10:
         case MEDIA_BUS_FMT_SGRBG10_1X10:
         case MEDIA_BUS_FMT_SRGGB10_1X10:
+        case MEDIA_BUS_FMT_Y10_1X10:
                 cfg->data_fmt = CSI_SENS_CONF_DATA_FMT_BAYER;
                 cfg->mipi_dt = MIPI_DT_RAW10;
                 cfg->data_width = IPU_CSI_DATA_WIDTH_10;
@@ -296,6 +297,7 @@ static int mbus_code_to_bus_cfg(struct ipu_csi_bus_config *cfg, u32 mbus_code)
         case MEDIA_BUS_FMT_SGBRG12_1X12:
         case MEDIA_BUS_FMT_SGRBG12_1X12:
         case MEDIA_BUS_FMT_SRGGB12_1X12:
+        case MEDIA_BUS_FMT_Y12_1X12:
                 cfg->data_fmt = CSI_SENS_CONF_DATA_FMT_BAYER;
                 cfg->mipi_dt = MIPI_DT_RAW12;
                 cfg->data_width = IPU_CSI_DATA_WIDTH_12;
diff --git a/drivers/gpu/ipu-v3/ipu-pre.c b/drivers/gpu/ipu-v3/ipu-pre.c
index f1cec3d70498..0f70e8847540 100644
--- a/drivers/gpu/ipu-v3/ipu-pre.c
+++ b/drivers/gpu/ipu-v3/ipu-pre.c
@@ -129,11 +129,14 @@ ipu_pre_lookup_by_phandle(struct device *dev, const char *name, int index)
                 if (pre_node == pre->dev->of_node) {
                         mutex_unlock(&ipu_pre_list_mutex);
                         device_link_add(dev, pre->dev, DL_FLAG_AUTOREMOVE);
+                        of_node_put(pre_node);
                         return pre;
                 }
         }
         mutex_unlock(&ipu_pre_list_mutex);
 
+        of_node_put(pre_node);
+
         return NULL;
 }
 
diff --git a/drivers/gpu/ipu-v3/ipu-prg.c b/drivers/gpu/ipu-v3/ipu-prg.c
index 067365c733c6..83f9dd934a5d 100644
--- a/drivers/gpu/ipu-v3/ipu-prg.c
+++ b/drivers/gpu/ipu-v3/ipu-prg.c
@@ -102,11 +102,14 @@ ipu_prg_lookup_by_phandle(struct device *dev, const char *name, int ipu_id)
                         mutex_unlock(&ipu_prg_list_mutex);
                         device_link_add(dev, prg->dev, DL_FLAG_AUTOREMOVE);
                         prg->id = ipu_id;
+                        of_node_put(prg_node);
                         return prg;
                 }
         }
         mutex_unlock(&ipu_prg_list_mutex);
 
+        of_node_put(prg_node);
+
         return NULL;
 }
 
@@ -247,10 +250,14 @@ void ipu_prg_channel_disable(struct ipuv3_channel *ipu_chan)
 {
         int prg_chan = ipu_prg_ipu_to_prg_chan(ipu_chan->num);
         struct ipu_prg *prg = ipu_chan->ipu->prg_priv;
-        struct ipu_prg_channel *chan = &prg->chan[prg_chan];
+        struct ipu_prg_channel *chan;
         u32 val;
 
-        if (!chan->enabled || prg_chan < 0)
+        if (prg_chan < 0)
+                return;
+
+        chan = &prg->chan[prg_chan];
+        if (!chan->enabled)
                 return;
 
         pm_runtime_get_sync(prg->dev);
@@ -277,13 +284,15 @@ int ipu_prg_channel_configure(struct ipuv3_channel *ipu_chan,
 {
         int prg_chan = ipu_prg_ipu_to_prg_chan(ipu_chan->num);
         struct ipu_prg *prg = ipu_chan->ipu->prg_priv;
-        struct ipu_prg_channel *chan = &prg->chan[prg_chan];
+        struct ipu_prg_channel *chan;
         u32 val;
         int ret;
 
         if (prg_chan < 0)
                 return prg_chan;
 
+        chan = &prg->chan[prg_chan];
+
         if (chan->enabled) {
                 ipu_pre_update(prg->pres[chan->used_pre], *eba);
                 return 0;
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 43ddcdfbd0da..9454ac134ce2 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -645,6 +645,9 @@
 #define USB_DEVICE_ID_LD_MICROCASSYTIME         0x1033
 #define USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE  0x1035
 #define USB_DEVICE_ID_LD_MICROCASSYPH           0x1038
+#define USB_DEVICE_ID_LD_POWERANALYSERCASSY     0x1040
+#define USB_DEVICE_ID_LD_CONVERTERCONTROLLERCASSY       0x1042
+#define USB_DEVICE_ID_LD_MACHINETESTCASSY       0x1043
 #define USB_DEVICE_ID_LD_JWM            0x1080
 #define USB_DEVICE_ID_LD_DMMP           0x1081
 #define USB_DEVICE_ID_LD_UMIP           0x1090
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 5f6035a5ce36..e92b77fa574a 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -809,6 +809,9 @@ static const struct hid_device_id hid_ignore_list[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERANALYSERCASSY) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CONVERTERCONTROLLERCASSY) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETESTCASSY) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
index 50e071444a5c..8699bb969e7e 100644
--- a/drivers/hv/ring_buffer.c
+++ b/drivers/hv/ring_buffer.c
@@ -417,13 +417,24 @@ __hv_pkt_iter_next(struct vmbus_channel *channel,
 }
 EXPORT_SYMBOL_GPL(__hv_pkt_iter_next);
 
+/* How many bytes were read in this iterator cycle */
+static u32 hv_pkt_iter_bytes_read(const struct hv_ring_buffer_info *rbi,
+                                        u32 start_read_index)
+{
+        if (rbi->priv_read_index >= start_read_index)
+                return rbi->priv_read_index - start_read_index;
+        else
+                return rbi->ring_datasize - start_read_index +
+                        rbi->priv_read_index;
+}
+
 /*
  * Update host ring buffer after iterating over packets.
  */
 void hv_pkt_iter_close(struct vmbus_channel *channel)
 {
         struct hv_ring_buffer_info *rbi = &channel->inbound;
-        u32 orig_write_sz = hv_get_bytes_to_write(rbi);
+        u32 curr_write_sz, pending_sz, bytes_read, start_read_index;
 
         /*
          * Make sure all reads are done before we update the read index since
@@ -431,8 +442,12 @@ void hv_pkt_iter_close(struct vmbus_channel *channel)
          * is updated.
          */
         virt_rmb();
+        start_read_index = rbi->ring_buffer->read_index;
         rbi->ring_buffer->read_index = rbi->priv_read_index;
 
+        if (!rbi->ring_buffer->feature_bits.feat_pending_send_sz)
+                return;
+
         /*
          * Issue a full memory barrier before making the signaling decision.
          * Here is the reason for having this barrier:
@@ -446,26 +461,29 @@ void hv_pkt_iter_close(struct vmbus_channel *channel)
          */
         virt_mb();
 
-        /* If host has disabled notifications then skip */
-        if (rbi->ring_buffer->interrupt_mask)
+        pending_sz = READ_ONCE(rbi->ring_buffer->pending_send_sz);
+        if (!pending_sz)
                 return;
 
-        if (rbi->ring_buffer->feature_bits.feat_pending_send_sz) {
-                u32 pending_sz = READ_ONCE(rbi->ring_buffer->pending_send_sz);
+        /*
+         * Ensure the read of write_index in hv_get_bytes_to_write()
+         * happens after the read of pending_send_sz.
+         */
+        virt_rmb();
+        curr_write_sz = hv_get_bytes_to_write(rbi);
+        bytes_read = hv_pkt_iter_bytes_read(rbi, start_read_index);
 
-                /*
-                 * If there was space before we began iteration,
-                 * then host was not blocked. Also handles case where
-                 * pending_sz is zero then host has nothing pending
-                 * and does not need to be signaled.
-                 */
-                if (orig_write_sz > pending_sz)
-                        return;
+        /*
+         * If there was space before we began iteration,
+         * then host was not blocked.
+         */
 
-                /* If pending write will not fit, don't give false hope. */
-                if (hv_get_bytes_to_write(rbi) < pending_sz)
-                        return;
-        }
+        if (curr_write_sz - bytes_read > pending_sz)
+                return;
+
+        /* If pending write will not fit, don't give false hope. */
+        if (curr_write_sz <= pending_sz)
+                return;
 
         vmbus_setevent(channel);
 }
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 4bdbf77f7197..72c338eb5fae 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -269,13 +269,13 @@ static int adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
         for (i = 0; i < ARRAY_SIZE(tjmax_model_table); i++) {
                 const struct tjmax_model *tm = &tjmax_model_table[i];
                 if (c->x86_model == tm->model &&
-                    (tm->mask == ANY || c->x86_mask == tm->mask))
+                    (tm->mask == ANY || c->x86_stepping == tm->mask))
                         return tm->tjmax;
         }
 
         /* Early chips have no MSR for TjMax */
 
-        if (c->x86_model == 0xf && c->x86_mask < 4)
+        if (c->x86_model == 0xf && c->x86_stepping < 4)
                 usemsr_ee = 0;
 
         if (c->x86_model > 0xe && usemsr_ee) {
@@ -426,7 +426,7 @@ static int chk_ucode_version(unsigned int cpu)
          * Readings might stop update when processor visited too deep sleep,
          * fixed for stepping D0 (6EC).
          */
-        if (c->x86_model == 0xe && c->x86_mask < 0xc && c->microcode < 0x39) {
+        if (c->x86_model == 0xe && c->x86_stepping < 0xc && c->microcode < 0x39) {
                 pr_err("Errata AE18 not fixed, update BIOS or microcode of the CPU!\n");
                 return -ENODEV;
         }
diff --git a/drivers/hwmon/hwmon-vid.c b/drivers/hwmon/hwmon-vid.c
index ef91b8a67549..84e91286fc4f 100644
--- a/drivers/hwmon/hwmon-vid.c
+++ b/drivers/hwmon/hwmon-vid.c
@@ -293,7 +293,7 @@ u8 vid_which_vrm(void)
         if (c->x86 < 6)         /* Any CPU with family lower than 6 */
                 return 0;       /* doesn't have VID */
 
-        vrm_ret = find_vrm(c->x86, c->x86_model, c->x86_mask, c->x86_vendor);
+        vrm_ret = find_vrm(c->x86, c->x86_model, c->x86_stepping, c->x86_vendor);
         if (vrm_ret == 134)
                 vrm_ret = get_via_model_d_vrm();
         if (vrm_ret == 0)
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index 06b4e1c78bd8..051a72eecb24 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -129,7 +129,10 @@ static ssize_t temp1_input_show(struct device *dev,
 
         data->read_tempreg(data->pdev, &regval);
         temp = (regval >> 21) * 125;
-        temp -= data->temp_offset;
+        if (temp > data->temp_offset)
+                temp -= data->temp_offset;
+        else
+                temp = 0;
 
         return sprintf(buf, "%u\n", temp);
 }
@@ -227,7 +230,7 @@ static bool has_erratum_319(struct pci_dev *pdev)
          * and AM3 formats, but that's the best we can do.
          */
         return boot_cpu_data.x86_model < 4 ||
-               (boot_cpu_data.x86_model == 4 && boot_cpu_data.x86_mask <= 2);
+               (boot_cpu_data.x86_model == 4 && boot_cpu_data.x86_stepping <= 2);
 }
 
 static int k10temp_probe(struct pci_dev *pdev,
diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c
index 5a632bcf869b..e59f9113fb93 100644
--- a/drivers/hwmon/k8temp.c
+++ b/drivers/hwmon/k8temp.c
@@ -187,7 +187,7 @@ static int k8temp_probe(struct pci_dev *pdev,
                 return -ENOMEM;
 
         model = boot_cpu_data.x86_model;
-        stepping = boot_cpu_data.x86_mask;
+        stepping = boot_cpu_data.x86_stepping;
 
         /* feature available since SH-C0, exclude older revisions */
         if ((model == 4 && stepping == 0) ||
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index a9805c7cb305..e2954fb86d65 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -123,8 +123,10 @@ config I2C_I801
             Wildcat Point (PCH)
             Wildcat Point-LP (PCH)
             BayTrail (SOC)
+            Braswell (SOC)
             Sunrise Point-H (PCH)
             Sunrise Point-LP (PCH)
+            Kaby Lake-H (PCH)
             DNV (SOC)
             Broxton (SOC)
             Lewisburg (PCH)
diff --git a/drivers/i2c/busses/i2c-bcm2835.c b/drivers/i2c/busses/i2c-bcm2835.c
index cd07a69e2e93..44deae78913e 100644
--- a/drivers/i2c/busses/i2c-bcm2835.c
+++ b/drivers/i2c/busses/i2c-bcm2835.c
@@ -50,6 +50,9 @@
 #define BCM2835_I2C_S_CLKT      BIT(9)
 #define BCM2835_I2C_S_LEN       BIT(10) /* Fake bit for SW error reporting */
 
+#define BCM2835_I2C_FEDL_SHIFT  16
+#define BCM2835_I2C_REDL_SHIFT  0
+
 #define BCM2835_I2C_CDIV_MIN    0x0002
 #define BCM2835_I2C_CDIV_MAX    0xFFFE
 
@@ -81,7 +84,7 @@ static inline u32 bcm2835_i2c_readl(struct bcm2835_i2c_dev *i2c_dev, u32 reg)
 
 static int bcm2835_i2c_set_divider(struct bcm2835_i2c_dev *i2c_dev)
 {
-        u32 divider;
+        u32 divider, redl, fedl;
 
         divider = DIV_ROUND_UP(clk_get_rate(i2c_dev->clk),
                                i2c_dev->bus_clk_rate);
@@ -100,6 +103,22 @@ static int bcm2835_i2c_set_divider(struct bcm2835_i2c_dev *i2c_dev)
 
         bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_DIV, divider);
 
+        /*
+         * Number of core clocks to wait after falling edge before
+         * outputting the next data bit.  Note that both FEDL and REDL
+         * can't be greater than CDIV/2.
+         */
+        fedl = max(divider / 16, 1u);
+
+        /*
+         * Number of core clocks to wait after rising edge before
+         * sampling the next incoming data bit.
+         */
+        redl = max(divider / 4, 1u);
+
+        bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_DEL,
+                           (fedl << BCM2835_I2C_FEDL_SHIFT) |
+                           (redl << BCM2835_I2C_REDL_SHIFT));
         return 0;
 }
 
diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c
index ae691884d071..05732531829f 100644
--- a/drivers/i2c/busses/i2c-designware-master.c
+++ b/drivers/i2c/busses/i2c-designware-master.c
@@ -209,7 +209,7 @@ static void i2c_dw_xfer_init(struct dw_i2c_dev *dev)
         i2c_dw_disable_int(dev);
 
         /* Enable the adapter */
-        __i2c_dw_enable(dev, true);
+        __i2c_dw_enable_and_wait(dev, true);
 
         /* Clear and enable interrupts */
         dw_readl(dev, DW_IC_CLR_INTR);
@@ -644,7 +644,7 @@ static int i2c_dw_init_recovery_info(struct dw_i2c_dev *dev)
         gpio = devm_gpiod_get(dev->dev, "scl", GPIOD_OUT_HIGH);
         if (IS_ERR(gpio)) {
                 r = PTR_ERR(gpio);
-                if (r == -ENOENT)
+                if (r == -ENOENT || r == -ENOSYS)
                         return 0;
                 return r;
         }
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 8eac00efadc1..692b34125866 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -58,6 +58,7 @@
  * Wildcat Point (PCH)          0x8ca2  32      hard    yes     yes     yes
  * Wildcat Point-LP (PCH)       0x9ca2  32      hard    yes     yes     yes
  * BayTrail (SOC)               0x0f12  32      hard    yes     yes     yes
+ * Braswell (SOC)               0x2292  32      hard    yes     yes     yes
  * Sunrise Point-H (PCH)        0xa123  32      hard    yes     yes     yes
  * Sunrise Point-LP (PCH)       0x9d23  32      hard    yes     yes     yes
  * DNV (SOC)                    0x19df  32      hard    yes     yes     yes
diff --git a/drivers/i2c/busses/i2c-octeon-core.c b/drivers/i2c/busses/i2c-octeon-core.c
index 1d8775799056..d9607905dc2f 100644
--- a/drivers/i2c/busses/i2c-octeon-core.c
+++ b/drivers/i2c/busses/i2c-octeon-core.c
@@ -233,6 +233,7 @@ static int octeon_i2c_check_status(struct octeon_i2c *i2c, int final_read)
                 return -EOPNOTSUPP;
 
         case STAT_TXDATA_NAK:
+        case STAT_BUS_ERROR:
                 return -EIO;
         case STAT_TXADDR_NAK:
         case STAT_RXADDR_NAK:
diff --git a/drivers/i2c/busses/i2c-octeon-core.h b/drivers/i2c/busses/i2c-octeon-core.h
index a7ef19855bb8..9bb9f64fdda0 100644
--- a/drivers/i2c/busses/i2c-octeon-core.h
+++ b/drivers/i2c/busses/i2c-octeon-core.h
@@ -43,7 +43,7 @@
 #define TWSI_CTL_AAK            0x04    /* Assert ACK */
 
 /* Status values */
-#define STAT_ERROR              0x00
+#define STAT_BUS_ERROR          0x00
 #define STAT_START              0x08
 #define STAT_REP_START          0x10
 #define STAT_TXADDR_ACK         0x18
diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c
index 2fd8b6d00391..87197ece0f90 100644
--- a/drivers/i2c/busses/i2c-sirf.c
+++ b/drivers/i2c/busses/i2c-sirf.c
@@ -341,7 +341,7 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, adap);
         init_completion(&siic->done);
 
-        /* Controller Initalisation */
+        /* Controller initialisation */
 
         writel(SIRFSOC_I2C_RESET, siic->base + SIRFSOC_I2C_CTRL);
         while (readl(siic->base + SIRFSOC_I2C_CTRL) & SIRFSOC_I2C_RESET)
@@ -369,7 +369,7 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
          * but they start to affect the speed when clock is set to faster
          * frequencies.
          * Through the actual tests, use the different user_div value(which
-         * in the divider formular 'Fio / (Fi2c * user_div)') to adapt
+         * in the divider formula 'Fio / (Fi2c * user_div)') to adapt
          * the different ranges of i2c bus clock frequency, to make the SCL
          * more accurate.
          */
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 17fd55af4d92..caa20eb5f26b 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -928,7 +928,7 @@ static int exact_lock(dev_t dev, void *data)
 {
         struct gendisk *p = data;
 
-        if (!get_disk(p))
+        if (!get_disk_and_module(p))
                 return -1;
         return 0;
 }
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 6fe995cf16a6..3e6fd5a8ac5b 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -920,6 +920,8 @@ static const struct iio_trigger_ops st_accel_trigger_ops = {
 int st_accel_common_probe(struct iio_dev *indio_dev)
 {
         struct st_sensor_data *adata = iio_priv(indio_dev);
+        struct st_sensors_platform_data *pdata =
+                (struct st_sensors_platform_data *)adata->dev->platform_data;
         int irq = adata->get_irq_data_ready(indio_dev);
         int err;
 
@@ -946,7 +948,10 @@ int st_accel_common_probe(struct iio_dev *indio_dev)
                                         &adata->sensor_settings->fs.fs_avl[0];
         adata->odr = adata->sensor_settings->odr.odr_avl[0].hz;
 
-        err = st_sensors_init_sensor(indio_dev, adata->dev->platform_data);
+        if (!pdata)
+                pdata = (struct st_sensors_platform_data *)&default_accel_pdata;
+
+        err = st_sensors_init_sensor(indio_dev, pdata);
         if (err < 0)
                 goto st_accel_power_off;
 
diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c
index 327a49ba1991..9515ca165dfd 100644
--- a/drivers/iio/adc/aspeed_adc.c
+++ b/drivers/iio/adc/aspeed_adc.c
@@ -243,7 +243,7 @@ static int aspeed_adc_probe(struct platform_device *pdev)
                                          ASPEED_ADC_INIT_POLLING_TIME,
                                          ASPEED_ADC_INIT_TIMEOUT);
                 if (ret)
-                        goto scaler_error;
+                        goto poll_timeout_error;
         }
 
         /* Start all channels in normal mode. */
@@ -274,9 +274,10 @@ iio_register_error:
         writel(ASPEED_OPERATION_MODE_POWER_DOWN,
                 data->base + ASPEED_REG_ENGINE_CONTROL);
         clk_disable_unprepare(data->clk_scaler->clk);
-reset_error:
-        reset_control_assert(data->rst);
 clk_enable_error:
+poll_timeout_error:
+        reset_control_assert(data->rst);
+reset_error:
         clk_hw_unregister_divider(data->clk_scaler);
 scaler_error:
         clk_hw_unregister_divider(data->clk_prescaler);
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index 29fa7736d80c..ede955d9b2a4 100644
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -462,8 +462,10 @@ static int meson_sar_adc_lock(struct iio_dev *indio_dev)
                         regmap_read(priv->regmap, MESON_SAR_ADC_DELAY, &val);
                 } while (val & MESON_SAR_ADC_DELAY_BL30_BUSY && timeout--);
 
-                if (timeout < 0)
+                if (timeout < 0) {
+                        mutex_unlock(&indio_dev->mlock);
                         return -ETIMEDOUT;
+                }
         }
 
         return 0;
diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index 7f5def465340..9a2583caedaa 100644
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -722,8 +722,6 @@ static int stm32h7_adc_enable(struct stm32_adc *adc)
         int ret;
         u32 val;
 
-        /* Clear ADRDY by writing one, then enable ADC */
-        stm32_adc_set_bits(adc, STM32H7_ADC_ISR, STM32H7_ADRDY);
         stm32_adc_set_bits(adc, STM32H7_ADC_CR, STM32H7_ADEN);
 
         /* Poll for ADRDY to be set (after adc startup time) */
@@ -731,8 +729,11 @@ static int stm32h7_adc_enable(struct stm32_adc *adc)
                                            val & STM32H7_ADRDY,
                                            100, STM32_ADC_TIMEOUT_US);
         if (ret) {
-                stm32_adc_clr_bits(adc, STM32H7_ADC_CR, STM32H7_ADEN);
+                stm32_adc_set_bits(adc, STM32H7_ADC_CR, STM32H7_ADDIS);
                 dev_err(&indio_dev->dev, "Failed to enable ADC\n");
+        } else {
+                /* Clear ADRDY by writing one */
+                stm32_adc_set_bits(adc, STM32H7_ADC_ISR, STM32H7_ADRDY);
         }
 
         return ret;
diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c
index daa026d6a94f..01422d11753c 100644
--- a/drivers/iio/adc/stm32-dfsdm-adc.c
+++ b/drivers/iio/adc/stm32-dfsdm-adc.c
@@ -54,7 +54,6 @@ struct stm32_dfsdm_adc {
         struct stm32_dfsdm *dfsdm;
         const struct stm32_dfsdm_dev_data *dev_data;
         unsigned int fl_id;
-        unsigned int ch_id;
 
         /* ADC specific */
         unsigned int oversamp;
@@ -384,7 +383,7 @@ static ssize_t dfsdm_adc_audio_set_spiclk(struct iio_dev *indio_dev,
 {
         struct stm32_dfsdm_adc *adc = iio_priv(indio_dev);
         struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[adc->fl_id];
-        struct stm32_dfsdm_channel *ch = &adc->dfsdm->ch_list[adc->ch_id];
+        struct stm32_dfsdm_channel *ch = &adc->dfsdm->ch_list[chan->channel];
         unsigned int sample_freq = adc->sample_freq;
         unsigned int spi_freq;
         int ret;
@@ -419,18 +418,20 @@ static ssize_t dfsdm_adc_audio_set_spiclk(struct iio_dev *indio_dev,
         return len;
 }
 
-static int stm32_dfsdm_start_conv(struct stm32_dfsdm_adc *adc, bool dma)
+static int stm32_dfsdm_start_conv(struct stm32_dfsdm_adc *adc,
+                                  const struct iio_chan_spec *chan,
+                                  bool dma)
 {
         struct regmap *regmap = adc->dfsdm->regmap;
         int ret;
         unsigned int dma_en = 0, cont_en = 0;
 
-        ret = stm32_dfsdm_start_channel(adc->dfsdm, adc->ch_id);
+        ret = stm32_dfsdm_start_channel(adc->dfsdm, chan->channel);
         if (ret < 0)
                 return ret;
 
         ret = stm32_dfsdm_filter_configure(adc->dfsdm, adc->fl_id,
-                                           adc->ch_id);
+                                           chan->channel);
         if (ret < 0)
                 goto stop_channels;
 
@@ -464,12 +465,13 @@ stop_channels:
 
         regmap_update_bits(regmap, DFSDM_CR1(adc->fl_id),
                            DFSDM_CR1_RCONT_MASK, 0);
-        stm32_dfsdm_stop_channel(adc->dfsdm, adc->fl_id);
+        stm32_dfsdm_stop_channel(adc->dfsdm, chan->channel);
 
         return ret;
 }
 
-static void stm32_dfsdm_stop_conv(struct stm32_dfsdm_adc *adc)
+static void stm32_dfsdm_stop_conv(struct stm32_dfsdm_adc *adc,
+                                  const struct iio_chan_spec *chan)
 {
         struct regmap *regmap = adc->dfsdm->regmap;
 
@@ -482,7 +484,7 @@ static void stm32_dfsdm_stop_conv(struct stm32_dfsdm_adc *adc)
         regmap_update_bits(regmap, DFSDM_CR1(adc->fl_id),
                            DFSDM_CR1_RCONT_MASK, 0);
 
-        stm32_dfsdm_stop_channel(adc->dfsdm, adc->ch_id);
+        stm32_dfsdm_stop_channel(adc->dfsdm, chan->channel);
 }
 
 static int stm32_dfsdm_set_watermark(struct iio_dev *indio_dev,
@@ -609,6 +611,7 @@ static int stm32_dfsdm_adc_dma_start(struct iio_dev *indio_dev)
 static int stm32_dfsdm_postenable(struct iio_dev *indio_dev)
 {
         struct stm32_dfsdm_adc *adc = iio_priv(indio_dev);
+        const struct iio_chan_spec *chan = &indio_dev->channels[0];
         int ret;
 
         /* Reset adc buffer index */
@@ -618,7 +621,7 @@ static int stm32_dfsdm_postenable(struct iio_dev *indio_dev)
         if (ret < 0)
                 return ret;
 
-        ret = stm32_dfsdm_start_conv(adc, true);
+        ret = stm32_dfsdm_start_conv(adc, chan, true);
         if (ret) {
                 dev_err(&indio_dev->dev, "Can't start conversion\n");
                 goto stop_dfsdm;
@@ -635,7 +638,7 @@ static int stm32_dfsdm_postenable(struct iio_dev *indio_dev)
         return 0;
 
 err_stop_conv:
-        stm32_dfsdm_stop_conv(adc);
+        stm32_dfsdm_stop_conv(adc, chan);
 stop_dfsdm:
         stm32_dfsdm_stop_dfsdm(adc->dfsdm);
 
@@ -645,11 +648,12 @@ stop_dfsdm:
 static int stm32_dfsdm_predisable(struct iio_dev *indio_dev)
 {
         struct stm32_dfsdm_adc *adc = iio_priv(indio_dev);
+        const struct iio_chan_spec *chan = &indio_dev->channels[0];
 
         if (adc->dma_chan)
                 dmaengine_terminate_all(adc->dma_chan);
 
-        stm32_dfsdm_stop_conv(adc);
+        stm32_dfsdm_stop_conv(adc, chan);
 
         stm32_dfsdm_stop_dfsdm(adc->dfsdm);
 
@@ -730,7 +734,7 @@ static int stm32_dfsdm_single_conv(struct iio_dev *indio_dev,
         if (ret < 0)
                 goto stop_dfsdm;
 
-        ret = stm32_dfsdm_start_conv(adc, false);
+        ret = stm32_dfsdm_start_conv(adc, chan, false);
         if (ret < 0) {
                 regmap_update_bits(adc->dfsdm->regmap, DFSDM_CR2(adc->fl_id),
                                    DFSDM_CR2_REOCIE_MASK, DFSDM_CR2_REOCIE(0));
@@ -751,7 +755,7 @@ static int stm32_dfsdm_single_conv(struct iio_dev *indio_dev,
         else
                 ret = IIO_VAL_INT;
 
-        stm32_dfsdm_stop_conv(adc);
+        stm32_dfsdm_stop_conv(adc, chan);
 
 stop_dfsdm:
         stm32_dfsdm_stop_dfsdm(adc->dfsdm);
@@ -765,7 +769,7 @@ static int stm32_dfsdm_write_raw(struct iio_dev *indio_dev,
 {
         struct stm32_dfsdm_adc *adc = iio_priv(indio_dev);
         struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[adc->fl_id];
-        struct stm32_dfsdm_channel *ch = &adc->dfsdm->ch_list[adc->ch_id];
+        struct stm32_dfsdm_channel *ch = &adc->dfsdm->ch_list[chan->channel];
         unsigned int spi_freq = adc->spi_freq;
         int ret = -EINVAL;
 
@@ -972,7 +976,6 @@ static int stm32_dfsdm_adc_chan_init_one(struct iio_dev *indio_dev,
         }
         ch->scan_type.realbits = 24;
         ch->scan_type.storagebits = 32;
-        adc->ch_id = ch->channel;
 
         return stm32_dfsdm_chan_configure(adc->dfsdm,
                                           &adc->dfsdm->ch_list[ch->channel]);
@@ -1001,7 +1004,7 @@ static int stm32_dfsdm_audio_init(struct iio_dev *indio_dev)
         }
         ch->info_mask_separate = BIT(IIO_CHAN_INFO_SAMP_FREQ);
 
-        d_ch = &adc->dfsdm->ch_list[adc->ch_id];
+        d_ch = &adc->dfsdm->ch_list[ch->channel];
         if (d_ch->src != DFSDM_CHANNEL_SPI_CLOCK_EXTERNAL)
                 adc->spi_freq = adc->dfsdm->spi_master_freq;
 
@@ -1042,8 +1045,8 @@ static int stm32_dfsdm_adc_init(struct iio_dev *indio_dev)
                 return -ENOMEM;
 
         for (chan_idx = 0; chan_idx < num_ch; chan_idx++) {
-                ch->scan_index = chan_idx;
-                ret = stm32_dfsdm_adc_chan_init_one(indio_dev, ch);
+                ch[chan_idx].scan_index = chan_idx;
+                ret = stm32_dfsdm_adc_chan_init_one(indio_dev, &ch[chan_idx]);
                 if (ret < 0) {
                         dev_err(&indio_dev->dev, "Channels init failed\n");
                         return ret;
diff --git a/drivers/iio/adc/stm32-dfsdm-core.c b/drivers/iio/adc/stm32-dfsdm-core.c
index 6290332cfd3f..e50efdcc41ff 100644
--- a/drivers/iio/adc/stm32-dfsdm-core.c
+++ b/drivers/iio/adc/stm32-dfsdm-core.c
@@ -83,7 +83,7 @@ int stm32_dfsdm_start_dfsdm(struct stm32_dfsdm *dfsdm)
 {
         struct dfsdm_priv *priv = container_of(dfsdm, struct dfsdm_priv, dfsdm);
         struct device *dev = &priv->pdev->dev;
-        unsigned int clk_div = priv->spi_clk_out_div;
+        unsigned int clk_div = priv->spi_clk_out_div, clk_src;
         int ret;
 
         if (atomic_inc_return(&priv->n_active_ch) == 1) {
@@ -100,6 +100,14 @@ int stm32_dfsdm_start_dfsdm(struct stm32_dfsdm *dfsdm)
                         }
                 }
 
+                /* select clock source, e.g. 0 for "dfsdm" or 1 for "audio" */
+                clk_src = priv->aclk ? 1 : 0;
+                ret = regmap_update_bits(dfsdm->regmap, DFSDM_CHCFGR1(0),
+                                         DFSDM_CHCFGR1_CKOUTSRC_MASK,
+                                         DFSDM_CHCFGR1_CKOUTSRC(clk_src));
+                if (ret < 0)
+                        goto disable_aclk;
+
                 /* Output the SPI CLKOUT (if clk_div == 0 clock if OFF) */
                 ret = regmap_update_bits(dfsdm->regmap, DFSDM_CHCFGR1(0),
                                          DFSDM_CHCFGR1_CKOUTDIV_MASK,
@@ -274,7 +282,7 @@ static int stm32_dfsdm_probe(struct platform_device *pdev)
 
         dfsdm->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "dfsdm",
                                                   dfsdm->base,
-                                                  &stm32h7_dfsdm_regmap_cfg);
+                                                  dev_data->regmap_cfg);
         if (IS_ERR(dfsdm->regmap)) {
                 ret = PTR_ERR(dfsdm->regmap);
                 dev_err(&pdev->dev, "%s: Failed to allocate regmap: %d\n",
diff --git a/drivers/iio/chemical/ccs811.c b/drivers/iio/chemical/ccs811.c
index fbe2431f5b81..1ea9f5513b02 100644
--- a/drivers/iio/chemical/ccs811.c
+++ b/drivers/iio/chemical/ccs811.c
@@ -133,6 +133,9 @@ static int ccs811_start_sensor_application(struct i2c_client *client)
         if (ret < 0)
                 return ret;
 
+        if ((ret & CCS811_STATUS_FW_MODE_APPLICATION))
+                return 0;
+
         if ((ret & CCS811_STATUS_APP_VALID_MASK) !=
             CCS811_STATUS_APP_VALID_LOADED)
                 return -EIO;
diff --git a/drivers/iio/imu/adis_trigger.c b/drivers/iio/imu/adis_trigger.c
index 0dd5a381be64..457372f36791 100644
--- a/drivers/iio/imu/adis_trigger.c
+++ b/drivers/iio/imu/adis_trigger.c
@@ -46,6 +46,10 @@ int adis_probe_trigger(struct adis *adis, struct iio_dev *indio_dev)
         if (adis->trig == NULL)
                 return -ENOMEM;
 
+        adis->trig->dev.parent = &adis->spi->dev;
+        adis->trig->ops = &adis_trigger_ops;
+        iio_trigger_set_drvdata(adis->trig, adis);
+
         ret = request_irq(adis->spi->irq,
                           &iio_trigger_generic_data_rdy_poll,
                           IRQF_TRIGGER_RISING,
@@ -54,9 +58,6 @@ int adis_probe_trigger(struct adis *adis, struct iio_dev *indio_dev)
         if (ret)
                 goto error_free_trig;
 
-        adis->trig->dev.parent = &adis->spi->dev;
-        adis->trig->ops = &adis_trigger_ops;
-        iio_trigger_set_drvdata(adis->trig, adis);
         ret = iio_trigger_register(adis->trig);
 
         indio_dev->trig = iio_trigger_get(adis->trig);
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 79abf70a126d..cd5bfe39591b 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -175,7 +175,7 @@ __poll_t iio_buffer_poll(struct file *filp,
         struct iio_dev *indio_dev = filp->private_data;
         struct iio_buffer *rb = indio_dev->buffer;
 
-        if (!indio_dev->info)
+        if (!indio_dev->info || rb == NULL)
                 return 0;
 
         poll_wait(filp, &rb->pollq, wait);
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 349e5c713c03..4ddb6cf7d401 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -640,7 +640,7 @@ int st_press_common_probe(struct iio_dev *indio_dev)
                        press_data->sensor_settings->drdy_irq.int2.addr))
                 pdata = (struct st_sensors_platform_data *)&default_press_pdata;
 
-        err = st_sensors_init_sensor(indio_dev, press_data->dev->platform_data);
+        err = st_sensors_init_sensor(indio_dev, pdata);
         if (err < 0)
                 goto st_press_power_off;
 
diff --git a/drivers/iio/proximity/Kconfig b/drivers/iio/proximity/Kconfig
index fcb1c4ba5e41..f726f9427602 100644
--- a/drivers/iio/proximity/Kconfig
+++ b/drivers/iio/proximity/Kconfig
@@ -68,6 +68,8 @@ config SX9500
 
 config SRF08
         tristate "Devantech SRF02/SRF08/SRF10 ultrasonic ranger sensor"
+        select IIO_BUFFER
+        select IIO_TRIGGERED_BUFFER
         depends on I2C
         help
           Say Y here to build a driver for Devantech SRF02/SRF08/SRF10
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index a5b4cf030c11..9183d148d644 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -550,18 +550,13 @@ static int addr_resolve(struct sockaddr *src_in,
                 dst_release(dst);
         }
 
-        if (ndev->flags & IFF_LOOPBACK) {
-                ret = rdma_translate_ip(dst_in, addr);
-                /*
-                 * Put the loopback device and get the translated
-                 * device instead.
-                 */
+        if (ndev) {
+                if (ndev->flags & IFF_LOOPBACK)
+                        ret = rdma_translate_ip(dst_in, addr);
+                else
+                        addr->bound_dev_if = ndev->ifindex;
                 dev_put(ndev);
-                ndev = dev_get_by_index(addr->net, addr->bound_dev_if);
-        } else {
-                addr->bound_dev_if = ndev->ifindex;
         }
-        dev_put(ndev);
 
         return ret;
 }
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index e66963ca58bd..a5367c5efbe7 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -3069,7 +3069,8 @@ static int cma_port_is_unique(struct rdma_bind_list *bind_list,
                         continue;
 
                 /* different dest port -> unique */
-                if (!cma_any_port(cur_daddr) &&
+                if (!cma_any_port(daddr) &&
+                    !cma_any_port(cur_daddr) &&
                     (dport != cur_dport))
                         continue;
 
@@ -3080,7 +3081,8 @@ static int cma_port_is_unique(struct rdma_bind_list *bind_list,
                         continue;
 
                 /* different dst address -> unique */
-                if (!cma_any_addr(cur_daddr) &&
+                if (!cma_any_addr(daddr) &&
+                    !cma_any_addr(cur_daddr) &&
                     cma_addr_cmp(daddr, cur_daddr))
                         continue;
 
@@ -3378,13 +3380,13 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
                 }
 #endif
         }
+        daddr = cma_dst_addr(id_priv);
+        daddr->sa_family = addr->sa_family;
+
         ret = cma_get_port(id_priv);
         if (ret)
                 goto err2;
 
-        daddr = cma_dst_addr(id_priv);
-        daddr->sa_family = addr->sa_family;
-
         return 0;
 err2:
         if (id_priv->cma_dev)
@@ -4173,6 +4175,9 @@ int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,
         struct cma_multicast *mc;
         int ret;
 
+        if (!id->device)
+                return -EINVAL;
+
         id_priv = container_of(id, struct rdma_id_private, id);
         if (!cma_comp(id_priv, RDMA_CM_ADDR_BOUND) &&
             !cma_comp(id_priv, RDMA_CM_ADDR_RESOLVED))
diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h
index c4560d84dfae..25bb178f6074 100644
--- a/drivers/infiniband/core/core_priv.h
+++ b/drivers/infiniband/core/core_priv.h
@@ -305,16 +305,21 @@ void nldev_exit(void);
 static inline struct ib_qp *_ib_create_qp(struct ib_device *dev,
                                           struct ib_pd *pd,
                                           struct ib_qp_init_attr *attr,
-                                          struct ib_udata *udata)
+                                          struct ib_udata *udata,
+                                          struct ib_uobject *uobj)
 {
         struct ib_qp *qp;
 
+        if (!dev->create_qp)
+                return ERR_PTR(-EOPNOTSUPP);
+
         qp = dev->create_qp(pd, attr, udata);
         if (IS_ERR(qp))
                 return qp;
 
         qp->device = dev;
         qp->pd = pd;
+        qp->uobject = uobj;
         /*
          * We don't track XRC QPs for now, because they don't have PD
          * and more importantly they are created internaly by driver,
diff --git a/drivers/infiniband/core/cq.c b/drivers/infiniband/core/cq.c
index bc79ca8215d7..af5ad6a56ae4 100644
--- a/drivers/infiniband/core/cq.c
+++ b/drivers/infiniband/core/cq.c
@@ -17,6 +17,7 @@
 
 /* # of WCs to poll for with a single call to ib_poll_cq */
 #define IB_POLL_BATCH                   16
+#define IB_POLL_BATCH_DIRECT            8
 
 /* # of WCs to iterate over before yielding */
 #define IB_POLL_BUDGET_IRQ              256
@@ -25,18 +26,18 @@
 #define IB_POLL_FLAGS \
         (IB_CQ_NEXT_COMP | IB_CQ_REPORT_MISSED_EVENTS)
 
-static int __ib_process_cq(struct ib_cq *cq, int budget, struct ib_wc *poll_wc)
+static int __ib_process_cq(struct ib_cq *cq, int budget, struct ib_wc *wcs,
+                           int batch)
 {
         int i, n, completed = 0;
-        struct ib_wc *wcs = poll_wc ? : cq->wc;
 
         /*
          * budget might be (-1) if the caller does not
          * want to bound this call, thus we need unsigned
          * minimum here.
          */
-        while ((n = ib_poll_cq(cq, min_t(u32, IB_POLL_BATCH,
-                        budget - completed), wcs)) > 0) {
+        while ((n = ib_poll_cq(cq, min_t(u32, batch,
+                                         budget - completed), wcs)) > 0) {
                 for (i = 0; i < n; i++) {
                         struct ib_wc *wc = &wcs[i];
 
@@ -48,8 +49,7 @@ static int __ib_process_cq(struct ib_cq *cq, int budget, struct ib_wc *poll_wc)
 
                 completed += n;
 
-                if (n != IB_POLL_BATCH ||
-                    (budget != -1 && completed >= budget))
+                if (n != batch || (budget != -1 && completed >= budget))
                         break;
         }
 
@@ -72,9 +72,9 @@ static int __ib_process_cq(struct ib_cq *cq, int budget, struct ib_wc *poll_wc)
  */
 int ib_process_cq_direct(struct ib_cq *cq, int budget)
 {
-        struct ib_wc wcs[IB_POLL_BATCH];
+        struct ib_wc wcs[IB_POLL_BATCH_DIRECT];
 
-        return __ib_process_cq(cq, budget, wcs);
+        return __ib_process_cq(cq, budget, wcs, IB_POLL_BATCH_DIRECT);
 }
 EXPORT_SYMBOL(ib_process_cq_direct);
 
@@ -88,7 +88,7 @@ static int ib_poll_handler(struct irq_poll *iop, int budget)
         struct ib_cq *cq = container_of(iop, struct ib_cq, iop);
         int completed;
 
-        completed = __ib_process_cq(cq, budget, NULL);
+        completed = __ib_process_cq(cq, budget, cq->wc, IB_POLL_BATCH);
         if (completed < budget) {
                 irq_poll_complete(&cq->iop);
                 if (ib_req_notify_cq(cq, IB_POLL_FLAGS) > 0)
@@ -108,7 +108,8 @@ static void ib_cq_poll_work(struct work_struct *work)
         struct ib_cq *cq = container_of(work, struct ib_cq, work);
         int completed;
 
-        completed = __ib_process_cq(cq, IB_POLL_BUDGET_WORKQUEUE, NULL);
+        completed = __ib_process_cq(cq, IB_POLL_BUDGET_WORKQUEUE, cq->wc,
+                                    IB_POLL_BATCH);
         if (completed >= IB_POLL_BUDGET_WORKQUEUE ||
             ib_req_notify_cq(cq, IB_POLL_FLAGS) > 0)
                 queue_work(ib_comp_wq, &cq->work);
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index e8010e73a1cf..bb065c9449be 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -536,14 +536,14 @@ int ib_register_device(struct ib_device *device,
         ret = device->query_device(device, &device->attrs, &uhw);
         if (ret) {
                 pr_warn("Couldn't query the device attributes\n");
-                goto cache_cleanup;
+                goto cg_cleanup;
         }
 
         ret = ib_device_register_sysfs(device, port_callback);
         if (ret) {
                 pr_warn("Couldn't register device %s with driver model\n",
                         device->name);
-                goto cache_cleanup;
+                goto cg_cleanup;
         }
 
         device->reg_state = IB_DEV_REGISTERED;
@@ -559,6 +559,8 @@ int ib_register_device(struct ib_device *device,
         mutex_unlock(&device_mutex);
         return 0;
 
+cg_cleanup:
+        ib_device_unregister_rdmacg(device);
 cache_cleanup:
         ib_cache_cleanup_one(device);
         ib_cache_release_one(device);
diff --git a/drivers/infiniband/core/rdma_core.c b/drivers/infiniband/core/rdma_core.c
index 85b5ee4defa4..d8eead5d106d 100644
--- a/drivers/infiniband/core/rdma_core.c
+++ b/drivers/infiniband/core/rdma_core.c
@@ -141,7 +141,12 @@ static struct ib_uobject *alloc_uobj(struct ib_ucontext *context,
          */
         uobj->context = context;
         uobj->type = type;
-        atomic_set(&uobj->usecnt, 0);
+        /*
+         * Allocated objects start out as write locked to deny any other
+         * syscalls from accessing them until they are committed. See
+         * rdma_alloc_commit_uobject
+         */
+        atomic_set(&uobj->usecnt, -1);
         kref_init(&uobj->ref);
 
         return uobj;
@@ -196,7 +201,15 @@ static struct ib_uobject *lookup_get_idr_uobject(const struct uverbs_obj_type *t
                 goto free;
         }
 
-        uverbs_uobject_get(uobj);
+        /*
+         * The idr_find is guaranteed to return a pointer to something that
+         * isn't freed yet, or NULL, as the free after idr_remove goes through
+         * kfree_rcu(). However the object may still have been released and
+         * kfree() could be called at any time.
+         */
+        if (!kref_get_unless_zero(&uobj->ref))
+                uobj = ERR_PTR(-ENOENT);
+
 free:
         rcu_read_unlock();
         return uobj;
@@ -399,13 +412,13 @@ static int __must_check remove_commit_fd_uobject(struct ib_uobject *uobj,
         return ret;
 }
 
-static void lockdep_check(struct ib_uobject *uobj, bool exclusive)
+static void assert_uverbs_usecnt(struct ib_uobject *uobj, bool exclusive)
 {
 #ifdef CONFIG_LOCKDEP
         if (exclusive)
-                WARN_ON(atomic_read(&uobj->usecnt) > 0);
+                WARN_ON(atomic_read(&uobj->usecnt) != -1);
         else
-                WARN_ON(atomic_read(&uobj->usecnt) == -1);
+                WARN_ON(atomic_read(&uobj->usecnt) <= 0);
 #endif
 }
 
@@ -444,7 +457,7 @@ int __must_check rdma_remove_commit_uobject(struct ib_uobject *uobj)
                 WARN(true, "ib_uverbs: Cleanup is running while removing an uobject\n");
                 return 0;
         }
-        lockdep_check(uobj, true);
+        assert_uverbs_usecnt(uobj, true);
         ret = _rdma_remove_commit_uobject(uobj, RDMA_REMOVE_DESTROY);
 
         up_read(&ucontext->cleanup_rwsem);
@@ -474,16 +487,17 @@ int rdma_explicit_destroy(struct ib_uobject *uobject)
                 WARN(true, "ib_uverbs: Cleanup is running while removing an uobject\n");
                 return 0;
         }
-        lockdep_check(uobject, true);
+        assert_uverbs_usecnt(uobject, true);
         ret = uobject->type->type_class->remove_commit(uobject,
                                                        RDMA_REMOVE_DESTROY);
         if (ret)
-                return ret;
+                goto out;
 
         uobject->type = &null_obj_type;
 
+out:
         up_read(&ucontext->cleanup_rwsem);
-        return 0;
+        return ret;
 }
 
 static void alloc_commit_idr_uobject(struct ib_uobject *uobj)
@@ -527,6 +541,10 @@ int rdma_alloc_commit_uobject(struct ib_uobject *uobj)
                 return ret;
         }
 
+        /* matches atomic_set(-1) in alloc_uobj */
+        assert_uverbs_usecnt(uobj, true);
+        atomic_set(&uobj->usecnt, 0);
+
         uobj->type->type_class->alloc_commit(uobj);
         up_read(&uobj->context->cleanup_rwsem);
 
@@ -561,7 +579,7 @@ static void lookup_put_fd_uobject(struct ib_uobject *uobj, bool exclusive)
 
 void rdma_lookup_put_uobject(struct ib_uobject *uobj, bool exclusive)
 {
-        lockdep_check(uobj, exclusive);
+        assert_uverbs_usecnt(uobj, exclusive);
         uobj->type->type_class->lookup_put(uobj, exclusive);
         /*
          * In order to unlock an object, either decrease its usecnt for
diff --git a/drivers/infiniband/core/restrack.c b/drivers/infiniband/core/restrack.c
index 857637bf46da..3dbc4e4cca41 100644
--- a/drivers/infiniband/core/restrack.c
+++ b/drivers/infiniband/core/restrack.c
@@ -7,7 +7,6 @@
 #include <rdma/restrack.h>
 #include <linux/mutex.h>
 #include <linux/sched/task.h>
-#include <linux/uaccess.h>
 #include <linux/pid_namespace.h>
 
 void rdma_restrack_init(struct rdma_restrack_root *res)
@@ -63,7 +62,6 @@ static struct ib_device *res_to_dev(struct rdma_restrack_entry *res)
 {
         enum rdma_restrack_type type = res->type;
         struct ib_device *dev;
-        struct ib_xrcd *xrcd;
         struct ib_pd *pd;
         struct ib_cq *cq;
         struct ib_qp *qp;
@@ -81,10 +79,6 @@ static struct ib_device *res_to_dev(struct rdma_restrack_entry *res)
                 qp = container_of(res, struct ib_qp, res);
                 dev = qp->device;
                 break;
-        case RDMA_RESTRACK_XRCD:
-                xrcd = container_of(res, struct ib_xrcd, res);
-                dev = xrcd->device;
-                break;
         default:
                 WARN_ONCE(true, "Wrong resource tracking type %u\n", type);
                 return NULL;
@@ -93,6 +87,21 @@ static struct ib_device *res_to_dev(struct rdma_restrack_entry *res)
         return dev;
 }
 
+static bool res_is_user(struct rdma_restrack_entry *res)
+{
+        switch (res->type) {
+        case RDMA_RESTRACK_PD:
+                return container_of(res, struct ib_pd, res)->uobject;
+        case RDMA_RESTRACK_CQ:
+                return container_of(res, struct ib_cq, res)->uobject;
+        case RDMA_RESTRACK_QP:
+                return container_of(res, struct ib_qp, res)->uobject;
+        default:
+                WARN_ONCE(true, "Wrong resource tracking type %u\n", res->type);
+                return false;
+        }
+}
+
 void rdma_restrack_add(struct rdma_restrack_entry *res)
 {
         struct ib_device *dev = res_to_dev(res);
@@ -100,7 +109,7 @@ void rdma_restrack_add(struct rdma_restrack_entry *res)
         if (!dev)
                 return;
 
-        if (!uaccess_kernel()) {
+        if (res_is_user(res)) {
                 get_task_struct(current);
                 res->task = current;
                 res->kern_name = NULL;
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 8cf15d4a8ac4..9f029a1ca5ea 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -1291,10 +1291,9 @@ int ib_init_ah_attr_from_path(struct ib_device *device, u8 port_num,
 
                 resolved_dev = dev_get_by_index(dev_addr.net,
                                                 dev_addr.bound_dev_if);
-                if (resolved_dev->flags & IFF_LOOPBACK) {
-                        dev_put(resolved_dev);
-                        resolved_dev = idev;
-                        dev_hold(resolved_dev);
+                if (!resolved_dev) {
+                        dev_put(idev);
+                        return -ENODEV;
                 }
                 ndev = ib_get_ndev_from_path(rec);
                 rcu_read_lock();
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index f015f1bf88c9..e5a1e7d81326 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -132,7 +132,7 @@ static inline struct ucma_context *_ucma_find_context(int id,
         ctx = idr_find(&ctx_idr, id);
         if (!ctx)
                 ctx = ERR_PTR(-ENOENT);
-        else if (ctx->file != file)
+        else if (ctx->file != file || !ctx->cm_id)
                 ctx = ERR_PTR(-EINVAL);
         return ctx;
 }
@@ -456,6 +456,7 @@ static ssize_t ucma_create_id(struct ucma_file *file, const char __user *inbuf,
         struct rdma_ucm_create_id cmd;
         struct rdma_ucm_create_id_resp resp;
         struct ucma_context *ctx;
+        struct rdma_cm_id *cm_id;
         enum ib_qp_type qp_type;
         int ret;
 
@@ -476,10 +477,10 @@ static ssize_t ucma_create_id(struct ucma_file *file, const char __user *inbuf,
                 return -ENOMEM;
 
         ctx->uid = cmd.uid;
-        ctx->cm_id = rdma_create_id(current->nsproxy->net_ns,
-                                    ucma_event_handler, ctx, cmd.ps, qp_type);
-        if (IS_ERR(ctx->cm_id)) {
-                ret = PTR_ERR(ctx->cm_id);
+        cm_id = rdma_create_id(current->nsproxy->net_ns,
+                               ucma_event_handler, ctx, cmd.ps, qp_type);
+        if (IS_ERR(cm_id)) {
+                ret = PTR_ERR(cm_id);
                 goto err1;
         }
 
@@ -489,14 +490,19 @@ static ssize_t ucma_create_id(struct ucma_file *file, const char __user *inbuf,
                 ret = -EFAULT;
                 goto err2;
         }
+
+        ctx->cm_id = cm_id;
         return 0;
 
 err2:
-        rdma_destroy_id(ctx->cm_id);
+        rdma_destroy_id(cm_id);
 err1:
         mutex_lock(&mut);
         idr_remove(&ctx_idr, ctx->id);
         mutex_unlock(&mut);
+        mutex_lock(&file->mut);
+        list_del(&ctx->list);
+        mutex_unlock(&file->mut);
         kfree(ctx);
         return ret;
 }
@@ -664,19 +670,23 @@ static ssize_t ucma_resolve_ip(struct ucma_file *file,
                                int in_len, int out_len)
 {
         struct rdma_ucm_resolve_ip cmd;
+        struct sockaddr *src, *dst;
         struct ucma_context *ctx;
         int ret;
 
         if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
                 return -EFAULT;
 
+        src = (struct sockaddr *) &cmd.src_addr;
+        dst = (struct sockaddr *) &cmd.dst_addr;
+        if (!rdma_addr_size(src) || !rdma_addr_size(dst))
+                return -EINVAL;
+
         ctx = ucma_get_ctx(file, cmd.id);
         if (IS_ERR(ctx))
                 return PTR_ERR(ctx);
 
-        ret = rdma_resolve_addr(ctx->cm_id, (struct sockaddr *) &cmd.src_addr,
-                                (struct sockaddr *) &cmd.dst_addr,
-                                cmd.timeout_ms);
+        ret = rdma_resolve_addr(ctx->cm_id, src, dst, cmd.timeout_ms);
         ucma_put_ctx(ctx);
         return ret;
 }
@@ -1149,6 +1159,9 @@ static ssize_t ucma_init_qp_attr(struct ucma_file *file,
         if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
                 return -EFAULT;
 
+        if (cmd.qp_state > IB_QPS_ERR)
+                return -EINVAL;
+
         ctx = ucma_get_ctx(file, cmd.id);
         if (IS_ERR(ctx))
                 return PTR_ERR(ctx);
@@ -1294,6 +1307,9 @@ static ssize_t ucma_set_option(struct ucma_file *file, const char __user *inbuf,
         if (IS_ERR(ctx))
                 return PTR_ERR(ctx);
 
+        if (unlikely(cmd.optval > KMALLOC_MAX_SIZE))
+                return -EINVAL;
+
         optval = memdup_user((void __user *) (unsigned long) cmd.optval,
                              cmd.optlen);
         if (IS_ERR(optval)) {
@@ -1343,7 +1359,7 @@ static ssize_t ucma_process_join(struct ucma_file *file,
                 return -ENOSPC;
 
         addr = (struct sockaddr *) &cmd->addr;
-        if (!cmd->addr_size || (cmd->addr_size != rdma_addr_size(addr)))
+        if (cmd->addr_size != rdma_addr_size(addr))
                 return -EINVAL;
 
         if (cmd->join_flags == RDMA_MC_JOIN_FLAG_FULLMEMBER)
@@ -1411,6 +1427,9 @@ static ssize_t ucma_join_ip_multicast(struct ucma_file *file,
         join_cmd.uid = cmd.uid;
         join_cmd.id = cmd.id;
         join_cmd.addr_size = rdma_addr_size((struct sockaddr *) &cmd.addr);
+        if (!join_cmd.addr_size)
+                return -EINVAL;
+
         join_cmd.join_flags = RDMA_MC_JOIN_FLAG_FULLMEMBER;
         memcpy(&join_cmd.addr, &cmd.addr, join_cmd.addr_size);
 
@@ -1426,6 +1445,9 @@ static ssize_t ucma_join_multicast(struct ucma_file *file,
         if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
                 return -EFAULT;
 
+        if (!rdma_addr_size((struct sockaddr *)&cmd.addr))
+                return -EINVAL;
+
         return ucma_process_join(file, &cmd, out_len);
 }
 
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 256934d1f64f..a148de35df8d 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -562,9 +562,10 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file,
         if (f.file)
                 fdput(f);
 
+        mutex_unlock(&file->device->xrcd_tree_mutex);
+
         uobj_alloc_commit(&obj->uobject);
 
-        mutex_unlock(&file->device->xrcd_tree_mutex);
         return in_len;
 
 err_copy:
@@ -603,10 +604,8 @@ ssize_t ib_uverbs_close_xrcd(struct ib_uverbs_file *file,
 
         uobj  = uobj_get_write(uobj_get_type(xrcd), cmd.xrcd_handle,
                                file->ucontext);
-        if (IS_ERR(uobj)) {
-                mutex_unlock(&file->device->xrcd_tree_mutex);
+        if (IS_ERR(uobj))
                 return PTR_ERR(uobj);
-        }
 
         ret = uobj_remove_commit(uobj);
         return ret ?: in_len;
@@ -979,6 +978,9 @@ static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file,
         struct ib_uverbs_ex_create_cq_resp resp;
         struct ib_cq_init_attr attr = {};
 
+        if (!ib_dev->create_cq)
+                return ERR_PTR(-EOPNOTSUPP);
+
         if (cmd->comp_vector >= file->device->num_comp_vectors)
                 return ERR_PTR(-EINVAL);
 
@@ -1030,14 +1032,14 @@ static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file,
         resp.response_length = offsetof(typeof(resp), response_length) +
                 sizeof(resp.response_length);
 
+        cq->res.type = RDMA_RESTRACK_CQ;
+        rdma_restrack_add(&cq->res);
+
         ret = cb(file, obj, &resp, ucore, context);
         if (ret)
                 goto err_cb;
 
         uobj_alloc_commit(&obj->uobject);
-        cq->res.type = RDMA_RESTRACK_CQ;
-        rdma_restrack_add(&cq->res);
-
         return obj;
 
 err_cb:
@@ -1518,7 +1520,8 @@ static int create_qp(struct ib_uverbs_file *file,
         if (cmd->qp_type == IB_QPT_XRC_TGT)
                 qp = ib_create_qp(pd, &attr);
         else
-                qp = _ib_create_qp(device, pd, &attr, uhw);
+                qp = _ib_create_qp(device, pd, &attr, uhw,
+                                   &obj->uevent.uobject);
 
         if (IS_ERR(qp)) {
                 ret = PTR_ERR(qp);
@@ -1550,8 +1553,10 @@ static int create_qp(struct ib_uverbs_file *file,
                         atomic_inc(&attr.srq->usecnt);
                 if (ind_tbl)
                         atomic_inc(&ind_tbl->usecnt);
+        } else {
+                /* It is done in _ib_create_qp for other QP types */
+                qp->uobject = &obj->uevent.uobject;
         }
-        qp->uobject = &obj->uevent.uobject;
 
         obj->uevent.uobject.object = qp;
 
@@ -1971,8 +1976,15 @@ static int modify_qp(struct ib_uverbs_file *file,
                 goto release_qp;
         }
 
+        if ((cmd->base.attr_mask & IB_QP_AV) &&
+            !rdma_is_port_valid(qp->device, cmd->base.dest.port_num)) {
+                ret = -EINVAL;
+                goto release_qp;
+        }
+
         if ((cmd->base.attr_mask & IB_QP_ALT_PATH) &&
-            !rdma_is_port_valid(qp->device, cmd->base.alt_port_num)) {
+            (!rdma_is_port_valid(qp->device, cmd->base.alt_port_num) ||
+            !rdma_is_port_valid(qp->device, cmd->base.alt_dest.port_num))) {
                 ret = -EINVAL;
                 goto release_qp;
         }
@@ -2941,6 +2953,11 @@ int ib_uverbs_ex_create_wq(struct ib_uverbs_file *file,
                 wq_init_attr.create_flags = cmd.create_flags;
         obj->uevent.events_reported = 0;
         INIT_LIST_HEAD(&obj->uevent.event_list);
+
+        if (!pd->device->create_wq) {
+                err = -EOPNOTSUPP;
+                goto err_put_cq;
+        }
         wq = pd->device->create_wq(pd, &wq_init_attr, uhw);
         if (IS_ERR(wq)) {
                 err = PTR_ERR(wq);
@@ -3084,7 +3101,12 @@ int ib_uverbs_ex_modify_wq(struct ib_uverbs_file *file,
                 wq_attr.flags = cmd.flags;
                 wq_attr.flags_mask = cmd.flags_mask;
         }
+        if (!wq->device->modify_wq) {
+                ret = -EOPNOTSUPP;
+                goto out;
+        }
         ret = wq->device->modify_wq(wq, &wq_attr, cmd.attr_mask, uhw);
+out:
         uobj_put_obj_read(wq);
         return ret;
 }
@@ -3181,6 +3203,11 @@ int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file,
 
         init_attr.log_ind_tbl_size = cmd.log_ind_tbl_size;
         init_attr.ind_tbl = wqs;
+
+        if (!ib_dev->create_rwq_ind_table) {
+                err = -EOPNOTSUPP;
+                goto err_uobj;
+        }
         rwq_ind_tbl = ib_dev->create_rwq_ind_table(ib_dev, &init_attr, uhw);
 
         if (IS_ERR(rwq_ind_tbl)) {
@@ -3770,6 +3797,9 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file,
         struct ib_device_attr attr = {0};
         int err;
 
+        if (!ib_dev->query_device)
+                return -EOPNOTSUPP;
+
         if (ucore->inlen < sizeof(cmd))
                 return -EINVAL;
 
diff --git a/drivers/infiniband/core/uverbs_ioctl.c b/drivers/infiniband/core/uverbs_ioctl.c
index d96dc1d17be1..339b85145044 100644
--- a/drivers/infiniband/core/uverbs_ioctl.c
+++ b/drivers/infiniband/core/uverbs_ioctl.c
@@ -59,6 +59,9 @@ static int uverbs_process_attr(struct ib_device *ibdev,
                         return 0;
         }
 
+        if (test_bit(attr_id, attr_bundle_h->valid_bitmap))
+                return -EINVAL;
+
         spec = &attr_spec_bucket->attrs[attr_id];
         e = &elements[attr_id];
         e->uattr = uattr_ptr;
diff --git a/drivers/infiniband/core/uverbs_ioctl_merge.c b/drivers/infiniband/core/uverbs_ioctl_merge.c
index 062485f9300d..62e1eb1d2a28 100644
--- a/drivers/infiniband/core/uverbs_ioctl_merge.c
+++ b/drivers/infiniband/core/uverbs_ioctl_merge.c
@@ -114,6 +114,7 @@ static size_t get_elements_above_id(const void **iters,
         short min = SHRT_MAX;
         const void *elem;
         int i, j, last_stored = -1;
+        unsigned int equal_min = 0;
 
         for_each_element(elem, i, j, elements, num_elements, num_offset,
                          data_offset) {
@@ -136,6 +137,10 @@ static size_t get_elements_above_id(const void **iters,
                  */
                 iters[last_stored == i ? num_iters - 1 : num_iters++] = elem;
                 last_stored = i;
+                if (min == GET_ID(id))
+                        equal_min++;
+                else
+                        equal_min = 1;
                 min = GET_ID(id);
         }
 
@@ -146,15 +151,10 @@ static size_t get_elements_above_id(const void **iters,
          * Therefore, we need to clean the beginning of the array to make sure
          * all ids of final elements are equal to min.
          */
-        for (i = num_iters - 1; i >= 0 &&
-             GET_ID(*(u16 *)(iters[i] + id_offset)) == min; i--)
-                ;
-
-        num_iters -= i + 1;
-        memmove(iters, iters + i + 1, sizeof(*iters) * num_iters);
+        memmove(iters, iters + num_iters - equal_min, sizeof(*iters) * equal_min);
 
         *min_id = min;
-        return num_iters;
+        return equal_min;
 }
 
 #define find_max_element_entry_id(num_elements, elements, num_objects_fld, \
@@ -322,7 +322,7 @@ static struct uverbs_method_spec *build_method_with_attrs(const struct uverbs_me
                 hash = kzalloc(sizeof(*hash) +
                                ALIGN(sizeof(*hash->attrs) * (attr_max_bucket + 1),
                                      sizeof(long)) +
-                               BITS_TO_LONGS(attr_max_bucket) * sizeof(long),
+                               BITS_TO_LONGS(attr_max_bucket + 1) * sizeof(long),
                                GFP_KERNEL);
                 if (!hash) {
                         res = -ENOMEM;
@@ -509,7 +509,7 @@ static struct uverbs_object_spec *build_object_with_methods(const struct uverbs_
                          * first handler which != NULL. This also defines the
                          * set of flags used for this handler.
                          */
-                        for (i = num_object_defs - 1;
+                        for (i = num_method_defs - 1;
                              i >= 0 && !method_defs[i]->handler; i--)
                                 ;
                         hash->methods[min_id++] = method;
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 395a3b091229..b1ca223aa380 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -650,12 +650,21 @@ static int verify_command_mask(struct ib_device *ib_dev, __u32 command)
         return -1;
 }
 
+static bool verify_command_idx(u32 command, bool extended)
+{
+        if (extended)
+                return command < ARRAY_SIZE(uverbs_ex_cmd_table);
+
+        return command < ARRAY_SIZE(uverbs_cmd_table);
+}
+
 static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
                              size_t count, loff_t *pos)
 {
         struct ib_uverbs_file *file = filp->private_data;
         struct ib_device *ib_dev;
         struct ib_uverbs_cmd_hdr hdr;
+        bool extended_command;
         __u32 command;
         __u32 flags;
         int srcu_key;
@@ -688,6 +697,15 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
         }
 
         command = hdr.command & IB_USER_VERBS_CMD_COMMAND_MASK;
+        flags = (hdr.command &
+                 IB_USER_VERBS_CMD_FLAGS_MASK) >> IB_USER_VERBS_CMD_FLAGS_SHIFT;
+
+        extended_command = flags & IB_USER_VERBS_CMD_FLAG_EXTENDED;
+        if (!verify_command_idx(command, extended_command)) {
+                ret = -EINVAL;
+                goto out;
+        }
+
         if (verify_command_mask(ib_dev, command)) {
                 ret = -EOPNOTSUPP;
                 goto out;
@@ -699,12 +717,8 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
                 goto out;
         }
 
-        flags = (hdr.command &
-                 IB_USER_VERBS_CMD_FLAGS_MASK) >> IB_USER_VERBS_CMD_FLAGS_SHIFT;
-
         if (!flags) {
-                if (command >= ARRAY_SIZE(uverbs_cmd_table) ||
-                    !uverbs_cmd_table[command]) {
+                if (!uverbs_cmd_table[command]) {
                         ret = -EINVAL;
                         goto out;
                 }
@@ -725,8 +739,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
                 struct ib_udata uhw;
                 size_t written_count = count;
 
-                if (command >= ARRAY_SIZE(uverbs_ex_cmd_table) ||
-                    !uverbs_ex_cmd_table[command]) {
+                if (!uverbs_ex_cmd_table[command]) {
                         ret = -ENOSYS;
                         goto out;
                 }
@@ -942,6 +955,7 @@ static const struct file_operations uverbs_fops = {
         .llseek  = no_llseek,
 #if IS_ENABLED(CONFIG_INFINIBAND_EXP_USER_ACCESS)
         .unlocked_ioctl = ib_uverbs_ioctl,
+        .compat_ioctl = ib_uverbs_ioctl,
 #endif
 };
 
@@ -954,6 +968,7 @@ static const struct file_operations uverbs_mmap_fops = {
         .llseek  = no_llseek,
 #if IS_ENABLED(CONFIG_INFINIBAND_EXP_USER_ACCESS)
         .unlocked_ioctl = ib_uverbs_ioctl,
+        .compat_ioctl = ib_uverbs_ioctl,
 #endif
 };
 
diff --git a/drivers/infiniband/core/uverbs_std_types.c b/drivers/infiniband/core/uverbs_std_types.c
index cab0ac3556eb..df1360e6774f 100644
--- a/drivers/infiniband/core/uverbs_std_types.c
+++ b/drivers/infiniband/core/uverbs_std_types.c
@@ -234,15 +234,18 @@ static void create_udata(struct uverbs_attr_bundle *ctx,
                 uverbs_attr_get(ctx, UVERBS_UHW_OUT);
 
         if (!IS_ERR(uhw_in)) {
-                udata->inbuf = uhw_in->ptr_attr.ptr;
                 udata->inlen = uhw_in->ptr_attr.len;
+                if (uverbs_attr_ptr_is_inline(uhw_in))
+                        udata->inbuf = &uhw_in->uattr->data;
+                else
+                        udata->inbuf = u64_to_user_ptr(uhw_in->ptr_attr.data);
         } else {
                 udata->inbuf = NULL;
                 udata->inlen = 0;
         }
 
         if (!IS_ERR(uhw_out)) {
-                udata->outbuf = uhw_out->ptr_attr.ptr;
+                udata->outbuf = u64_to_user_ptr(uhw_out->ptr_attr.data);
                 udata->outlen = uhw_out->ptr_attr.len;
         } else {
                 udata->outbuf = NULL;
@@ -323,7 +326,8 @@ static int uverbs_create_cq_handler(struct ib_device *ib_dev,
         cq->res.type = RDMA_RESTRACK_CQ;
         rdma_restrack_add(&cq->res);
 
-        ret = uverbs_copy_to(attrs, CREATE_CQ_RESP_CQE, &cq->cqe);
+        ret = uverbs_copy_to(attrs, CREATE_CQ_RESP_CQE, &cq->cqe,
+                             sizeof(cq->cqe));
         if (ret)
                 goto err_cq;
 
@@ -375,7 +379,7 @@ static int uverbs_destroy_cq_handler(struct ib_device *ib_dev,
         resp.comp_events_reported  = obj->comp_events_reported;
         resp.async_events_reported = obj->async_events_reported;
 
-        return uverbs_copy_to(attrs, DESTROY_CQ_RESP, &resp);
+        return uverbs_copy_to(attrs, DESTROY_CQ_RESP, &resp, sizeof(resp));
 }
 
 static DECLARE_UVERBS_METHOD(
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 16ebc6372c31..93025d2009b8 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -887,7 +887,7 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd,
         if (qp_init_attr->cap.max_rdma_ctxs)
                 rdma_rw_init_qp(device, qp_init_attr);
 
-        qp = _ib_create_qp(device, pd, qp_init_attr, NULL);
+        qp = _ib_create_qp(device, pd, qp_init_attr, NULL, NULL);
         if (IS_ERR(qp))
                 return qp;
 
@@ -898,7 +898,6 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd,
         }
 
         qp->real_qp    = qp;
-        qp->uobject    = NULL;
         qp->qp_type    = qp_init_attr->qp_type;
         qp->rwq_ind_tbl = qp_init_attr->rwq_ind_tbl;
 
diff --git a/drivers/infiniband/hw/bnxt_re/bnxt_re.h b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
index ca32057e886f..96f76896488d 100644
--- a/drivers/infiniband/hw/bnxt_re/bnxt_re.h
+++ b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
@@ -57,8 +57,8 @@
 #define BNXT_RE_PAGE_SIZE_8M            BIT(BNXT_RE_PAGE_SHIFT_8M)
 #define BNXT_RE_PAGE_SIZE_1G            BIT(BNXT_RE_PAGE_SHIFT_1G)
 
-#define BNXT_RE_MAX_MR_SIZE_LOW         BIT(BNXT_RE_PAGE_SHIFT_1G)
-#define BNXT_RE_MAX_MR_SIZE_HIGH        BIT(39)
+#define BNXT_RE_MAX_MR_SIZE_LOW         BIT_ULL(BNXT_RE_PAGE_SHIFT_1G)
+#define BNXT_RE_MAX_MR_SIZE_HIGH        BIT_ULL(39)
 #define BNXT_RE_MAX_MR_SIZE             BNXT_RE_MAX_MR_SIZE_HIGH
 
 #define BNXT_RE_MAX_QPC_COUNT           (64 * 1024)
@@ -120,7 +120,6 @@ struct bnxt_re_dev {
 #define BNXT_RE_FLAG_HAVE_L2_REF                3
 #define BNXT_RE_FLAG_RCFW_CHANNEL_EN            4
 #define BNXT_RE_FLAG_QOS_WORK_REG               5
-#define BNXT_RE_FLAG_TASK_IN_PROG               6
 #define BNXT_RE_FLAG_ISSUE_ROCE_STATS          29
         struct net_device               *netdev;
         unsigned int                    version, major, minor;
@@ -158,6 +157,7 @@ struct bnxt_re_dev {
         atomic_t                        srq_count;
         atomic_t                        mr_count;
         atomic_t                        mw_count;
+        atomic_t                        sched_count;
         /* Max of 2 lossless traffic class supported per port */
         u16                             cosq[2];
 
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index ae9e9ff54826..8301d7e5fa8c 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -174,10 +174,8 @@ int bnxt_re_query_device(struct ib_device *ibdev,
         ib_attr->max_pd = dev_attr->max_pd;
         ib_attr->max_qp_rd_atom = dev_attr->max_qp_rd_atom;
         ib_attr->max_qp_init_rd_atom = dev_attr->max_qp_init_rd_atom;
-        if (dev_attr->is_atomic) {
-                ib_attr->atomic_cap = IB_ATOMIC_HCA;
-                ib_attr->masked_atomic_cap = IB_ATOMIC_HCA;
-        }
+        ib_attr->atomic_cap = IB_ATOMIC_NONE;
+        ib_attr->masked_atomic_cap = IB_ATOMIC_NONE;
 
         ib_attr->max_ee_rd_atom = 0;
         ib_attr->max_res_rd_atom = 0;
@@ -787,20 +785,51 @@ int bnxt_re_query_ah(struct ib_ah *ib_ah, struct rdma_ah_attr *ah_attr)
         return 0;
 }
 
+unsigned long bnxt_re_lock_cqs(struct bnxt_re_qp *qp)
+        __acquires(&qp->scq->cq_lock) __acquires(&qp->rcq->cq_lock)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&qp->scq->cq_lock, flags);
+        if (qp->rcq != qp->scq)
+                spin_lock(&qp->rcq->cq_lock);
+        else
+                __acquire(&qp->rcq->cq_lock);
+
+        return flags;
+}
+
+void bnxt_re_unlock_cqs(struct bnxt_re_qp *qp,
+                        unsigned long flags)
+        __releases(&qp->scq->cq_lock) __releases(&qp->rcq->cq_lock)
+{
+        if (qp->rcq != qp->scq)
+                spin_unlock(&qp->rcq->cq_lock);
+        else
+                __release(&qp->rcq->cq_lock);
+        spin_unlock_irqrestore(&qp->scq->cq_lock, flags);
+}
+
 /* Queue Pairs */
 int bnxt_re_destroy_qp(struct ib_qp *ib_qp)
 {
         struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
         struct bnxt_re_dev *rdev = qp->rdev;
         int rc;
+        unsigned int flags;
 
         bnxt_qplib_flush_cqn_wq(&qp->qplib_qp);
-        bnxt_qplib_del_flush_qp(&qp->qplib_qp);
         rc = bnxt_qplib_destroy_qp(&rdev->qplib_res, &qp->qplib_qp);
         if (rc) {
                 dev_err(rdev_to_dev(rdev), "Failed to destroy HW QP");
                 return rc;
         }
+
+        flags = bnxt_re_lock_cqs(qp);
+        bnxt_qplib_clean_qp(&qp->qplib_qp);
+        bnxt_re_unlock_cqs(qp, flags);
+        bnxt_qplib_free_qp_res(&rdev->qplib_res, &qp->qplib_qp);
+
         if (ib_qp->qp_type == IB_QPT_GSI && rdev->qp1_sqp) {
                 rc = bnxt_qplib_destroy_ah(&rdev->qplib_res,
                                            &rdev->sqp_ah->qplib_ah);
@@ -810,7 +839,7 @@ int bnxt_re_destroy_qp(struct ib_qp *ib_qp)
                         return rc;
                 }
 
-                bnxt_qplib_del_flush_qp(&qp->qplib_qp);
+                bnxt_qplib_clean_qp(&qp->qplib_qp);
                 rc = bnxt_qplib_destroy_qp(&rdev->qplib_res,
                                            &rdev->qp1_sqp->qplib_qp);
                 if (rc) {
@@ -1069,6 +1098,7 @@ struct ib_qp *bnxt_re_create_qp(struct ib_pd *ib_pd,
                         goto fail;
                 }
                 qp->qplib_qp.scq = &cq->qplib_cq;
+                qp->scq = cq;
         }
 
         if (qp_init_attr->recv_cq) {
@@ -1080,6 +1110,7 @@ struct ib_qp *bnxt_re_create_qp(struct ib_pd *ib_pd,
                         goto fail;
                 }
                 qp->qplib_qp.rcq = &cq->qplib_cq;
+                qp->rcq = cq;
         }
 
         if (qp_init_attr->srq) {
@@ -1185,7 +1216,7 @@ struct ib_qp *bnxt_re_create_qp(struct ib_pd *ib_pd,
                 rc = bnxt_qplib_create_qp(&rdev->qplib_res, &qp->qplib_qp);
                 if (rc) {
                         dev_err(rdev_to_dev(rdev), "Failed to create HW QP");
-                        goto fail;
+                        goto free_umem;
                 }
         }
 
@@ -1213,6 +1244,13 @@ struct ib_qp *bnxt_re_create_qp(struct ib_pd *ib_pd,
         return &qp->ib_qp;
 qp_destroy:
         bnxt_qplib_destroy_qp(&rdev->qplib_res, &qp->qplib_qp);
+free_umem:
+        if (udata) {
+                if (qp->rumem)
+                        ib_umem_release(qp->rumem);
+                if (qp->sumem)
+                        ib_umem_release(qp->sumem);
+        }
 fail:
         kfree(qp);
         return ERR_PTR(rc);
@@ -1568,6 +1606,7 @@ int bnxt_re_modify_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
         int status;
         union ib_gid sgid;
         struct ib_gid_attr sgid_attr;
+        unsigned int flags;
         u8 nw_type;
 
         qp->qplib_qp.modify_flags = 0;
@@ -1596,14 +1635,18 @@ int bnxt_re_modify_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
                         dev_dbg(rdev_to_dev(rdev),
                                 "Move QP = %p to flush list\n",
                                 qp);
+                        flags = bnxt_re_lock_cqs(qp);
                         bnxt_qplib_add_flush_qp(&qp->qplib_qp);
+                        bnxt_re_unlock_cqs(qp, flags);
                 }
                 if (!qp->sumem &&
                     qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_RESET) {
                         dev_dbg(rdev_to_dev(rdev),
                                 "Move QP = %p out of flush list\n",
                                 qp);
-                        bnxt_qplib_del_flush_qp(&qp->qplib_qp);
+                        flags = bnxt_re_lock_cqs(qp);
+                        bnxt_qplib_clean_qp(&qp->qplib_qp);
+                        bnxt_re_unlock_cqs(qp, flags);
                 }
         }
         if (qp_attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY) {
@@ -2189,10 +2232,13 @@ static int bnxt_re_build_inv_wqe(struct ib_send_wr *wr,
         wqe->type = BNXT_QPLIB_SWQE_TYPE_LOCAL_INV;
         wqe->local_inv.inv_l_key = wr->ex.invalidate_rkey;
 
+        /* Need unconditional fence for local invalidate
+         * opcode to work as expected.
+         */
+        wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;
+
         if (wr->send_flags & IB_SEND_SIGNALED)
                 wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;
-        if (wr->send_flags & IB_SEND_FENCE)
-                wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;
         if (wr->send_flags & IB_SEND_SOLICITED)
                 wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT;
 
@@ -2213,8 +2259,12 @@ static int bnxt_re_build_reg_wqe(struct ib_reg_wr *wr,
         wqe->frmr.levels = qplib_frpl->hwq.level + 1;
         wqe->type = BNXT_QPLIB_SWQE_TYPE_REG_MR;
 
-        if (wr->wr.send_flags & IB_SEND_FENCE)
-                wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;
+        /* Need unconditional fence for reg_mr
+         * opcode to function as expected.
+         */
+
+        wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;
+
         if (wr->wr.send_flags & IB_SEND_SIGNALED)
                 wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;
 
@@ -3548,7 +3598,7 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
         int umem_pgs, page_shift, rc;
 
         if (length > BNXT_RE_MAX_MR_SIZE) {
-                dev_err(rdev_to_dev(rdev), "MR Size: %lld > Max supported:%ld\n",
+                dev_err(rdev_to_dev(rdev), "MR Size: %lld > Max supported:%lld\n",
                         length, BNXT_RE_MAX_MR_SIZE);
                 return ERR_PTR(-ENOMEM);
         }
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.h b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
index 423ebe012f95..e62b7c2c7da6 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.h
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
@@ -89,6 +89,8 @@ struct bnxt_re_qp {
         /* QP1 */
         u32                     send_psn;
         struct ib_ud_header     qp1_hdr;
+        struct bnxt_re_cq       *scq;
+        struct bnxt_re_cq       *rcq;
 };
 
 struct bnxt_re_cq {
@@ -220,4 +222,7 @@ struct ib_ucontext *bnxt_re_alloc_ucontext(struct ib_device *ibdev,
                                            struct ib_udata *udata);
 int bnxt_re_dealloc_ucontext(struct ib_ucontext *context);
 int bnxt_re_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
+
+unsigned long bnxt_re_lock_cqs(struct bnxt_re_qp *qp);
+void bnxt_re_unlock_cqs(struct bnxt_re_qp *qp, unsigned long flags);
 #endif /* __BNXT_RE_IB_VERBS_H__ */
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 508d00a5a106..f6e361750466 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -656,7 +656,6 @@ static void bnxt_re_dev_remove(struct bnxt_re_dev *rdev)
         mutex_unlock(&bnxt_re_dev_lock);
 
         synchronize_rcu();
-        flush_workqueue(bnxt_re_wq);
 
         ib_dealloc_device(&rdev->ibdev);
         /* rdev is gone */
@@ -731,6 +730,13 @@ static int bnxt_re_handle_qp_async_event(struct creq_qp_event *qp_event,
                                          struct bnxt_re_qp *qp)
 {
         struct ib_event event;
+        unsigned int flags;
+
+        if (qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
+                flags = bnxt_re_lock_cqs(qp);
+                bnxt_qplib_add_flush_qp(&qp->qplib_qp);
+                bnxt_re_unlock_cqs(qp, flags);
+        }
 
         memset(&event, 0, sizeof(event));
         if (qp->qplib_qp.srq) {
@@ -1417,9 +1423,12 @@ static void bnxt_re_task(struct work_struct *work)
         switch (re_work->event) {
         case NETDEV_REGISTER:
                 rc = bnxt_re_ib_reg(rdev);
-                if (rc)
+                if (rc) {
                         dev_err(rdev_to_dev(rdev),
                                 "Failed to register with IB: %#x", rc);
+                        bnxt_re_remove_one(rdev);
+                        bnxt_re_dev_unreg(rdev);
+                }
                 break;
         case NETDEV_UP:
                 bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1,
@@ -1441,7 +1450,7 @@ static void bnxt_re_task(struct work_struct *work)
                 break;
         }
         smp_mb__before_atomic();
-        clear_bit(BNXT_RE_FLAG_TASK_IN_PROG, &rdev->flags);
+        atomic_dec(&rdev->sched_count);
         kfree(re_work);
 }
 
@@ -1503,7 +1512,7 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier,
                 /* netdev notifier will call NETDEV_UNREGISTER again later since
                  * we are still holding the reference to the netdev
                  */
-                if (test_bit(BNXT_RE_FLAG_TASK_IN_PROG, &rdev->flags))
+                if (atomic_read(&rdev->sched_count) > 0)
                         goto exit;
                 bnxt_re_ib_unreg(rdev, false);
                 bnxt_re_remove_one(rdev);
@@ -1523,7 +1532,7 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier,
                         re_work->vlan_dev = (real_dev == netdev ?
                                              NULL : netdev);
                         INIT_WORK(&re_work->work, bnxt_re_task);
-                        set_bit(BNXT_RE_FLAG_TASK_IN_PROG, &rdev->flags);
+                        atomic_inc(&rdev->sched_count);
                         queue_work(bnxt_re_wq, &re_work->work);
                 }
         }
@@ -1578,6 +1587,11 @@ static void __exit bnxt_re_mod_exit(void)
         */
         list_for_each_entry_safe_reverse(rdev, next, &to_be_deleted, list) {
                 dev_info(rdev_to_dev(rdev), "Unregistering Device");
+                /*
+                 * Flush out any scheduled tasks before destroying the
+                 * resources
+                 */
+                flush_workqueue(bnxt_re_wq);
                 bnxt_re_dev_stop(rdev);
                 bnxt_re_ib_unreg(rdev, true);
                 bnxt_re_remove_one(rdev);
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
index 1b0e94697fe3..3a78faba8d91 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
@@ -88,75 +88,35 @@ static void __bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp)
         }
 }
 
-void bnxt_qplib_acquire_cq_locks(struct bnxt_qplib_qp *qp,
-                                 unsigned long *flags)
-        __acquires(&qp->scq->hwq.lock) __acquires(&qp->rcq->hwq.lock)
+static void bnxt_qplib_acquire_cq_flush_locks(struct bnxt_qplib_qp *qp,
+                                       unsigned long *flags)
+        __acquires(&qp->scq->flush_lock) __acquires(&qp->rcq->flush_lock)
 {
-        spin_lock_irqsave(&qp->scq->hwq.lock, *flags);
+        spin_lock_irqsave(&qp->scq->flush_lock, *flags);
         if (qp->scq == qp->rcq)
-                __acquire(&qp->rcq->hwq.lock);
+                __acquire(&qp->rcq->flush_lock);
         else
-                spin_lock(&qp->rcq->hwq.lock);
+                spin_lock(&qp->rcq->flush_lock);
 }
 
-void bnxt_qplib_release_cq_locks(struct bnxt_qplib_qp *qp,
-                                 unsigned long *flags)
-        __releases(&qp->scq->hwq.lock) __releases(&qp->rcq->hwq.lock)
+static void bnxt_qplib_release_cq_flush_locks(struct bnxt_qplib_qp *qp,
+                                       unsigned long *flags)
+        __releases(&qp->scq->flush_lock) __releases(&qp->rcq->flush_lock)
 {
         if (qp->scq == qp->rcq)
-                __release(&qp->rcq->hwq.lock);
+                __release(&qp->rcq->flush_lock);
         else
-                spin_unlock(&qp->rcq->hwq.lock);
-        spin_unlock_irqrestore(&qp->scq->hwq.lock, *flags);
-}
-
-static struct bnxt_qplib_cq *bnxt_qplib_find_buddy_cq(struct bnxt_qplib_qp *qp,
-                                                      struct bnxt_qplib_cq *cq)
-{
-        struct bnxt_qplib_cq *buddy_cq = NULL;
-
-        if (qp->scq == qp->rcq)
-                buddy_cq = NULL;
-        else if (qp->scq == cq)
-                buddy_cq = qp->rcq;
-        else
-                buddy_cq = qp->scq;
-        return buddy_cq;
-}
-
-static void bnxt_qplib_lock_buddy_cq(struct bnxt_qplib_qp *qp,
-                                     struct bnxt_qplib_cq *cq)
-        __acquires(&buddy_cq->hwq.lock)
-{
-        struct bnxt_qplib_cq *buddy_cq = NULL;
-
-        buddy_cq = bnxt_qplib_find_buddy_cq(qp, cq);
-        if (!buddy_cq)
-                __acquire(&cq->hwq.lock);
-        else
-                spin_lock(&buddy_cq->hwq.lock);
-}
-
-static void bnxt_qplib_unlock_buddy_cq(struct bnxt_qplib_qp *qp,
-                                       struct bnxt_qplib_cq *cq)
-        __releases(&buddy_cq->hwq.lock)
-{
-        struct bnxt_qplib_cq *buddy_cq = NULL;
-
-        buddy_cq = bnxt_qplib_find_buddy_cq(qp, cq);
-        if (!buddy_cq)
-                __release(&cq->hwq.lock);
-        else
-                spin_unlock(&buddy_cq->hwq.lock);
+                spin_unlock(&qp->rcq->flush_lock);
+        spin_unlock_irqrestore(&qp->scq->flush_lock, *flags);
 }
 
 void bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp)
 {
         unsigned long flags;
 
-        bnxt_qplib_acquire_cq_locks(qp, &flags);
+        bnxt_qplib_acquire_cq_flush_locks(qp, &flags);
         __bnxt_qplib_add_flush_qp(qp);
-        bnxt_qplib_release_cq_locks(qp, &flags);
+        bnxt_qplib_release_cq_flush_locks(qp, &flags);
 }
 
 static void __bnxt_qplib_del_flush_qp(struct bnxt_qplib_qp *qp)
@@ -173,11 +133,11 @@ static void __bnxt_qplib_del_flush_qp(struct bnxt_qplib_qp *qp)
         }
 }
 
-void bnxt_qplib_del_flush_qp(struct bnxt_qplib_qp *qp)
+void bnxt_qplib_clean_qp(struct bnxt_qplib_qp *qp)
 {
         unsigned long flags;
 
-        bnxt_qplib_acquire_cq_locks(qp, &flags);
+        bnxt_qplib_acquire_cq_flush_locks(qp, &flags);
         __clean_cq(qp->scq, (u64)(unsigned long)qp);
         qp->sq.hwq.prod = 0;
         qp->sq.hwq.cons = 0;
@@ -186,7 +146,7 @@ void bnxt_qplib_del_flush_qp(struct bnxt_qplib_qp *qp)
         qp->rq.hwq.cons = 0;
 
         __bnxt_qplib_del_flush_qp(qp);
-        bnxt_qplib_release_cq_locks(qp, &flags);
+        bnxt_qplib_release_cq_flush_locks(qp, &flags);
 }
 
 static void bnxt_qpn_cqn_sched_task(struct work_struct *work)
@@ -283,7 +243,7 @@ static void bnxt_qplib_service_nq(unsigned long data)
         u32 sw_cons, raw_cons;
         u16 type;
         int budget = nq->budget;
-        u64 q_handle;
+        uintptr_t q_handle;
 
         /* Service the NQ until empty */
         raw_cons = hwq->cons;
@@ -566,7 +526,7 @@ int bnxt_qplib_create_srq(struct bnxt_qplib_res *res,
 
         /* Configure the request */
         req.dpi = cpu_to_le32(srq->dpi->dpi);
-        req.srq_handle = cpu_to_le64(srq);
+        req.srq_handle = cpu_to_le64((uintptr_t)srq);
 
         req.srq_size = cpu_to_le16((u16)srq->hwq.max_elements);
         pbl = &srq->hwq.pbl[PBL_LVL_0];
@@ -1419,7 +1379,6 @@ int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res,
         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
         struct cmdq_destroy_qp req;
         struct creq_destroy_qp_resp resp;
-        unsigned long flags;
         u16 cmd_flags = 0;
         int rc;
 
@@ -1437,19 +1396,12 @@ int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res,
                 return rc;
         }
 
-        /* Must walk the associated CQs to nullified the QP ptr */
-        spin_lock_irqsave(&qp->scq->hwq.lock, flags);
-
-        __clean_cq(qp->scq, (u64)(unsigned long)qp);
-
-        if (qp->rcq && qp->rcq != qp->scq) {
-                spin_lock(&qp->rcq->hwq.lock);
-                __clean_cq(qp->rcq, (u64)(unsigned long)qp);
-                spin_unlock(&qp->rcq->hwq.lock);
-        }
-
-        spin_unlock_irqrestore(&qp->scq->hwq.lock, flags);
+        return 0;
+}
 
+void bnxt_qplib_free_qp_res(struct bnxt_qplib_res *res,
+                            struct bnxt_qplib_qp *qp)
+{
         bnxt_qplib_free_qp_hdr_buf(res, qp);
         bnxt_qplib_free_hwq(res->pdev, &qp->sq.hwq);
         kfree(qp->sq.swq);
@@ -1462,7 +1414,6 @@ int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res,
         if (qp->orrq.max_elements)
                 bnxt_qplib_free_hwq(res->pdev, &qp->orrq);
 
-        return 0;
 }
 
 void *bnxt_qplib_get_qp1_sq_buf(struct bnxt_qplib_qp *qp,
@@ -2116,9 +2067,6 @@ void bnxt_qplib_mark_qp_error(void *qp_handle)
         /* Must block new posting of SQ and RQ */
         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
         bnxt_qplib_cancel_phantom_processing(qp);
-
-        /* Add qp to flush list of the CQ */
-        __bnxt_qplib_add_flush_qp(qp);
 }
 
 /* Note: SQE is valid from sw_sq_cons up to cqe_sq_cons (exclusive)
@@ -2294,9 +2242,9 @@ static int bnxt_qplib_cq_process_req(struct bnxt_qplib_cq *cq,
                                 sw_sq_cons, cqe->wr_id, cqe->status);
                         cqe++;
                         (*budget)--;
-                        bnxt_qplib_lock_buddy_cq(qp, cq);
                         bnxt_qplib_mark_qp_error(qp);
-                        bnxt_qplib_unlock_buddy_cq(qp, cq);
+                        /* Add qp to flush list of the CQ */
+                        bnxt_qplib_add_flush_qp(qp);
                 } else {
                         if (swq->flags & SQ_SEND_FLAGS_SIGNAL_COMP) {
                                 /* Before we complete, do WA 9060 */
@@ -2412,9 +2360,7 @@ static int bnxt_qplib_cq_process_res_rc(struct bnxt_qplib_cq *cq,
                 if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
                         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
                         /* Add qp to flush list of the CQ */
-                        bnxt_qplib_lock_buddy_cq(qp, cq);
-                        __bnxt_qplib_add_flush_qp(qp);
-                        bnxt_qplib_unlock_buddy_cq(qp, cq);
+                        bnxt_qplib_add_flush_qp(qp);
                 }
         }
 
@@ -2498,9 +2444,7 @@ static int bnxt_qplib_cq_process_res_ud(struct bnxt_qplib_cq *cq,
                 if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
                         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
                         /* Add qp to flush list of the CQ */
-                        bnxt_qplib_lock_buddy_cq(qp, cq);
-                        __bnxt_qplib_add_flush_qp(qp);
-                        bnxt_qplib_unlock_buddy_cq(qp, cq);
+                        bnxt_qplib_add_flush_qp(qp);
                 }
         }
 done:
@@ -2510,11 +2454,9 @@ done:
 bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq)
 {
         struct cq_base *hw_cqe, **hw_cqe_ptr;
-        unsigned long flags;
         u32 sw_cons, raw_cons;
         bool rc = true;
 
-        spin_lock_irqsave(&cq->hwq.lock, flags);
         raw_cons = cq->hwq.cons;
         sw_cons = HWQ_CMP(raw_cons, &cq->hwq);
         hw_cqe_ptr = (struct cq_base **)cq->hwq.pbl_ptr;
@@ -2522,7 +2464,6 @@ bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq)
 
          /* Check for Valid bit. If the CQE is valid, return false */
         rc = !CQE_CMP_VALID(hw_cqe, raw_cons, cq->hwq.max_elements);
-        spin_unlock_irqrestore(&cq->hwq.lock, flags);
         return rc;
 }
 
@@ -2611,9 +2552,7 @@ static int bnxt_qplib_cq_process_res_raweth_qp1(struct bnxt_qplib_cq *cq,
                 if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
                         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
                         /* Add qp to flush list of the CQ */
-                        bnxt_qplib_lock_buddy_cq(qp, cq);
-                        __bnxt_qplib_add_flush_qp(qp);
-                        bnxt_qplib_unlock_buddy_cq(qp, cq);
+                        bnxt_qplib_add_flush_qp(qp);
                 }
         }
 
@@ -2728,9 +2667,7 @@ do_rq:
          */
 
         /* Add qp to flush list of the CQ */
-        bnxt_qplib_lock_buddy_cq(qp, cq);
-        __bnxt_qplib_add_flush_qp(qp);
-        bnxt_qplib_unlock_buddy_cq(qp, cq);
+        bnxt_qplib_add_flush_qp(qp);
 done:
         return rc;
 }
@@ -2759,7 +2696,7 @@ int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq,
         u32 budget = num_cqes;
         unsigned long flags;
 
-        spin_lock_irqsave(&cq->hwq.lock, flags);
+        spin_lock_irqsave(&cq->flush_lock, flags);
         list_for_each_entry(qp, &cq->sqf_head, sq_flush) {
                 dev_dbg(&cq->hwq.pdev->dev,
                         "QPLIB: FP: Flushing SQ QP= %p",
@@ -2773,7 +2710,7 @@ int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq,
                         qp);
                 __flush_rq(&qp->rq, qp, &cqe, &budget);
         }
-        spin_unlock_irqrestore(&cq->hwq.lock, flags);
+        spin_unlock_irqrestore(&cq->flush_lock, flags);
 
         return num_cqes - budget;
 }
@@ -2782,11 +2719,9 @@ int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
                        int num_cqes, struct bnxt_qplib_qp **lib_qp)
 {
         struct cq_base *hw_cqe, **hw_cqe_ptr;
-        unsigned long flags;
         u32 sw_cons, raw_cons;
         int budget, rc = 0;
 
-        spin_lock_irqsave(&cq->hwq.lock, flags);
         raw_cons = cq->hwq.cons;
         budget = num_cqes;
 
@@ -2862,20 +2797,15 @@ int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
                 bnxt_qplib_arm_cq(cq, DBR_DBR_TYPE_CQ);
         }
 exit:
-        spin_unlock_irqrestore(&cq->hwq.lock, flags);
         return num_cqes - budget;
 }
 
 void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
 {
-        unsigned long flags;
-
-        spin_lock_irqsave(&cq->hwq.lock, flags);
         if (arm_type)
                 bnxt_qplib_arm_cq(cq, arm_type);
         /* Using cq->arm_state variable to track whether to issue cq handler */
         atomic_set(&cq->arm_state, 1);
-        spin_unlock_irqrestore(&cq->hwq.lock, flags);
 }
 
 void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp)
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index 211b27a8f9e2..ade9f13c0fd1 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
@@ -389,6 +389,18 @@ struct bnxt_qplib_cq {
         struct list_head                sqf_head, rqf_head;
         atomic_t                        arm_state;
         spinlock_t                      compl_lock; /* synch CQ handlers */
+/* Locking Notes:
+ * QP can move to error state from modify_qp, async error event or error
+ * CQE as part of poll_cq. When QP is moved to error state, it gets added
+ * to two flush lists, one each for SQ and RQ.
+ * Each flush list is protected by qplib_cq->flush_lock. Both scq and rcq
+ * flush_locks should be acquired when QP is moved to error. The control path
+ * operations(modify_qp and async error events) are synchronized with poll_cq
+ * using upper level CQ locks (bnxt_re_cq->cq_lock) of both SCQ and RCQ.
+ * The qplib_cq->flush_lock is required to synchronize two instances of poll_cq
+ * of the same QP while manipulating the flush list.
+ */
+        spinlock_t                      flush_lock; /* QP flush management */
 };
 
 #define BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE sizeof(struct xrrq_irrq)
@@ -478,6 +490,9 @@ int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp);
 int bnxt_qplib_modify_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp);
 int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp);
 int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp);
+void bnxt_qplib_clean_qp(struct bnxt_qplib_qp *qp);
+void bnxt_qplib_free_qp_res(struct bnxt_qplib_res *res,
+                            struct bnxt_qplib_qp *qp);
 void *bnxt_qplib_get_qp1_sq_buf(struct bnxt_qplib_qp *qp,
                                 struct bnxt_qplib_sge *sge);
 void *bnxt_qplib_get_qp1_rq_buf(struct bnxt_qplib_qp *qp,
@@ -500,7 +515,6 @@ void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type);
 void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq);
 int bnxt_qplib_alloc_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq);
 void bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp);
-void bnxt_qplib_del_flush_qp(struct bnxt_qplib_qp *qp);
 void bnxt_qplib_acquire_cq_locks(struct bnxt_qplib_qp *qp,
                                  unsigned long *flags);
 void bnxt_qplib_release_cq_locks(struct bnxt_qplib_qp *qp,
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
index 8329ec6a7946..80027a494730 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
@@ -305,9 +305,8 @@ static int bnxt_qplib_process_qp_event(struct bnxt_qplib_rcfw *rcfw,
                         err_event->res_err_state_reason);
                 if (!qp)
                         break;
-                bnxt_qplib_acquire_cq_locks(qp, &flags);
                 bnxt_qplib_mark_qp_error(qp);
-                bnxt_qplib_release_cq_locks(qp, &flags);
+                rcfw->aeq_handler(rcfw, qp_event, qp);
                 break;
         default:
                 /* Command Response */
@@ -460,7 +459,11 @@ int bnxt_qplib_init_rcfw(struct bnxt_qplib_rcfw *rcfw,
         int rc;
 
         RCFW_CMD_PREP(req, INITIALIZE_FW, cmd_flags);
-
+        /* Supply (log-base-2-of-host-page-size - base-page-shift)
+         * to bono to adjust the doorbell page sizes.
+         */
+        req.log2_dbr_pg_size = cpu_to_le16(PAGE_SHIFT -
+                                           RCFW_DBR_BASE_PAGE_SHIFT);
         /*
          * VFs need not setup the HW context area, PF
          * shall setup this area for VF. Skipping the
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
index 6bee6e3636ea..c7cce2e4185e 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
@@ -49,6 +49,7 @@
 #define RCFW_COMM_SIZE                  0x104
 
 #define RCFW_DBR_PCI_BAR_REGION         2
+#define RCFW_DBR_BASE_PAGE_SHIFT        12
 
 #define RCFW_CMD_PREP(req, CMD, cmd_flags)                              \
         do {                                                            \
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
index c015c1861351..ee98e5efef84 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
@@ -52,18 +52,6 @@ const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
 
 /* Device */
 
-static bool bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw *rcfw)
-{
-        int rc;
-        u16 pcie_ctl2;
-
-        rc = pcie_capability_read_word(rcfw->pdev, PCI_EXP_DEVCTL2,
-                                       &pcie_ctl2);
-        if (rc)
-                return false;
-        return !!(pcie_ctl2 & PCI_EXP_DEVCTL2_ATOMIC_REQ);
-}
-
 static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
                                      char *fw_ver)
 {
@@ -151,7 +139,8 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
         attr->max_pkey = le32_to_cpu(sb->max_pkeys);
 
         attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
-        attr->l2_db_size = (sb->l2_db_space_size + 1) * PAGE_SIZE;
+        attr->l2_db_size = (sb->l2_db_space_size + 1) *
+                            (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
         attr->max_sgid = le32_to_cpu(sb->max_gid);
 
         bnxt_qplib_query_version(rcfw, attr->fw_ver);
@@ -165,7 +154,7 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
                 attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
         }
 
-        attr->is_atomic = bnxt_qplib_is_atomic_cap(rcfw);
+        attr->is_atomic = 0;
 bail:
         bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
         return rc;
diff --git a/drivers/infiniband/hw/bnxt_re/roce_hsi.h b/drivers/infiniband/hw/bnxt_re/roce_hsi.h
index 2d7ea096a247..3e5a4f760d0e 100644
--- a/drivers/infiniband/hw/bnxt_re/roce_hsi.h
+++ b/drivers/infiniband/hw/bnxt_re/roce_hsi.h
@@ -1761,7 +1761,30 @@ struct cmdq_initialize_fw {
         #define CMDQ_INITIALIZE_FW_TIM_PG_SIZE_PG_2M               (0x3UL << 4)
         #define CMDQ_INITIALIZE_FW_TIM_PG_SIZE_PG_8M               (0x4UL << 4)
         #define CMDQ_INITIALIZE_FW_TIM_PG_SIZE_PG_1G               (0x5UL << 4)
-        __le16 reserved16;
+        /* This value is (log-base-2-of-DBR-page-size - 12).
+         * 0 for 4KB. HW supported values are enumerated below.
+         */
+        __le16  log2_dbr_pg_size;
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_MASK        0xfUL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_SFT         0
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_4K       0x0UL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_8K       0x1UL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_16K      0x2UL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_32K      0x3UL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_64K      0x4UL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_128K     0x5UL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_256K     0x6UL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_512K     0x7UL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_1M       0x8UL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_2M       0x9UL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_4M       0xaUL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_8M       0xbUL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_16M      0xcUL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_32M      0xdUL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_64M      0xeUL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_128M     0xfUL
+        #define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_LAST                \
+                        CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_128M
         __le64 qpc_page_dir;
         __le64 mrw_page_dir;
         __le64 srq_page_dir;
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 9a566ee3ceff..82adc0d1d30e 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -601,6 +601,7 @@ static void use_tunnel_data(struct mlx4_ib_qp *qp, struct mlx4_ib_cq *cq, struct
         wc->dlid_path_bits = 0;
 
         if (is_eth) {
+                wc->slid = 0;
                 wc->vlan_id = be16_to_cpu(hdr->tun.sl_vid);
                 memcpy(&(wc->smac[0]), (char *)&hdr->tun.mac_31_0, 4);
                 memcpy(&(wc->smac[4]), (char *)&hdr->tun.slid_mac_47_32, 2);
@@ -851,7 +852,6 @@ repoll:
                         }
                 }
 
-                wc->slid           = be16_to_cpu(cqe->rlid);
                 g_mlpath_rqpn      = be32_to_cpu(cqe->g_mlpath_rqpn);
                 wc->src_qp         = g_mlpath_rqpn & 0xffffff;
                 wc->dlid_path_bits = (g_mlpath_rqpn >> 24) & 0x7f;
@@ -860,6 +860,7 @@ repoll:
                 wc->wc_flags      |= mlx4_ib_ipoib_csum_ok(cqe->status,
                                         cqe->checksum) ? IB_WC_IP_CSUM_OK : 0;
                 if (is_eth) {
+                        wc->slid = 0;
                         wc->sl  = be16_to_cpu(cqe->sl_vid) >> 13;
                         if (be32_to_cpu(cqe->vlan_my_qpn) &
                                         MLX4_CQE_CVLAN_PRESENT_MASK) {
@@ -871,6 +872,7 @@ repoll:
                         memcpy(wc->smac, cqe->smac, ETH_ALEN);
                         wc->wc_flags |= (IB_WC_WITH_VLAN | IB_WC_WITH_SMAC);
                 } else {
+                        wc->slid = be16_to_cpu(cqe->rlid);
                         wc->sl  = be16_to_cpu(cqe->sl_vid) >> 12;
                         wc->vlan_id = 0xffff;
                 }
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 8d2ee9322f2e..5a0e4fc4785a 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -219,8 +219,6 @@ static int mlx4_ib_update_gids_v1_v2(struct gid_entry *gids,
                         gid_tbl[i].version = 2;
                         if (!ipv6_addr_v4mapped((struct in6_addr *)&gids[i].gid))
                                 gid_tbl[i].type = 1;
-                        else
-                                memset(&gid_tbl[i].gid, 0, 12);
                 }
         }
 
@@ -366,8 +364,13 @@ static int mlx4_ib_del_gid(struct ib_device *device,
                 if (!gids) {
                         ret = -ENOMEM;
                 } else {
-                        for (i = 0; i < MLX4_MAX_PORT_GIDS; i++)
-                                memcpy(&gids[i].gid, &port_gid_table->gids[i].gid, sizeof(union ib_gid));
+                        for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) {
+                                memcpy(&gids[i].gid,
+                                       &port_gid_table->gids[i].gid,
+                                       sizeof(union ib_gid));
+                                gids[i].gid_type =
+                                    port_gid_table->gids[i].gid_type;
+                        }
                 }
         }
         spin_unlock_bh(&iboe->lock);
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 5b974fb97611..15457c9569a7 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -226,7 +226,6 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe,
                 wc->ex.invalidate_rkey = be32_to_cpu(cqe->imm_inval_pkey);
                 break;
         }
-        wc->slid           = be16_to_cpu(cqe->slid);
         wc->src_qp         = be32_to_cpu(cqe->flags_rqpn) & 0xffffff;
         wc->dlid_path_bits = cqe->ml_path;
         g = (be32_to_cpu(cqe->flags_rqpn) >> 28) & 3;
@@ -241,10 +240,12 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe,
         }
 
         if (ll != IB_LINK_LAYER_ETHERNET) {
+                wc->slid = be16_to_cpu(cqe->slid);
                 wc->sl = (be32_to_cpu(cqe->flags_rqpn) >> 24) & 0xf;
                 return;
         }
 
+        wc->slid = 0;
         vlan_present = cqe->l4_l3_hdr_type & 0x1;
         roce_packet_type   = (be32_to_cpu(cqe->flags_rqpn) >> 24) & 0x3;
         if (vlan_present) {
@@ -1177,7 +1178,12 @@ static int resize_user(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
         if (ucmd.reserved0 || ucmd.reserved1)
                 return -EINVAL;
 
-        umem = ib_umem_get(context, ucmd.buf_addr, entries * ucmd.cqe_size,
+        /* check multiplication overflow */
+        if (ucmd.cqe_size && SIZE_MAX / ucmd.cqe_size <= entries - 1)
+                return -EINVAL;
+
+        umem = ib_umem_get(context, ucmd.buf_addr,
+                           (size_t)ucmd.cqe_size * entries,
                            IB_ACCESS_LOCAL_WRITE, 1);
         if (IS_ERR(umem)) {
                 err = PTR_ERR(umem);
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 4236c8086820..da091de4e69d 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -245,12 +245,16 @@ struct mlx5_core_dev *mlx5_ib_get_native_port_mdev(struct mlx5_ib_dev *ibdev,
         struct mlx5_ib_multiport_info *mpi;
         struct mlx5_ib_port *port;
 
+        if (!mlx5_core_mp_enabled(ibdev->mdev) ||
+            ll != IB_LINK_LAYER_ETHERNET) {
+                if (native_port_num)
+                        *native_port_num = ib_port_num;
+                return ibdev->mdev;
+        }
+
         if (native_port_num)
                 *native_port_num = 1;
 
-        if (!mlx5_core_mp_enabled(ibdev->mdev) || ll != IB_LINK_LAYER_ETHERNET)
-                return ibdev->mdev;
-
         port = &ibdev->port[ib_port_num - 1];
         if (!port)
                 return NULL;
@@ -3263,7 +3267,7 @@ static void mlx5_ib_handle_event(struct work_struct *_work)
         struct mlx5_ib_dev *ibdev;
         struct ib_event ibev;
         bool fatal = false;
-        u8 port = 0;
+        u8 port = (u8)work->param;
 
         if (mlx5_core_is_mp_slave(work->dev)) {
                 ibdev = mlx5_ib_get_ibdev_from_mpi(work->context);
@@ -3283,8 +3287,6 @@ static void mlx5_ib_handle_event(struct work_struct *_work)
         case MLX5_DEV_EVENT_PORT_UP:
         case MLX5_DEV_EVENT_PORT_DOWN:
         case MLX5_DEV_EVENT_PORT_INITIALIZED:
-                port = (u8)work->param;
-
                 /* In RoCE, port up/down events are handled in
                  * mlx5_netdev_event().
                  */
@@ -3298,24 +3300,19 @@ static void mlx5_ib_handle_event(struct work_struct *_work)
 
         case MLX5_DEV_EVENT_LID_CHANGE:
                 ibev.event = IB_EVENT_LID_CHANGE;
-                port = (u8)work->param;
                 break;
 
         case MLX5_DEV_EVENT_PKEY_CHANGE:
                 ibev.event = IB_EVENT_PKEY_CHANGE;
-                port = (u8)work->param;
-
                 schedule_work(&ibdev->devr.ports[port - 1].pkey_change_work);
                 break;
 
         case MLX5_DEV_EVENT_GUID_CHANGE:
                 ibev.event = IB_EVENT_GID_CHANGE;
-                port = (u8)work->param;
                 break;
 
         case MLX5_DEV_EVENT_CLIENT_REREG:
                 ibev.event = IB_EVENT_CLIENT_REREGISTER;
-                port = (u8)work->param;
                 break;
         case MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT:
                 schedule_work(&ibdev->delay_drop.delay_drop_work);
@@ -3327,7 +3324,7 @@ static void mlx5_ib_handle_event(struct work_struct *_work)
         ibev.device           = &ibdev->ib_dev;
         ibev.element.port_num = port;
 
-        if (port < 1 || port > ibdev->num_ports) {
+        if (!rdma_is_port_valid(&ibdev->ib_dev, port)) {
                 mlx5_ib_warn(ibdev, "warning: event on port %d\n", port);
                 goto out;
         }
@@ -4863,19 +4860,19 @@ static int mlx5_ib_stage_ib_reg_init(struct mlx5_ib_dev *dev)
         return ib_register_device(&dev->ib_dev, NULL);
 }
 
-static void mlx5_ib_stage_ib_reg_cleanup(struct mlx5_ib_dev *dev)
+static void mlx5_ib_stage_pre_ib_reg_umr_cleanup(struct mlx5_ib_dev *dev)
 {
-        ib_unregister_device(&dev->ib_dev);
+        destroy_umrc_res(dev);
 }
 
-static int mlx5_ib_stage_umr_res_init(struct mlx5_ib_dev *dev)
+static void mlx5_ib_stage_ib_reg_cleanup(struct mlx5_ib_dev *dev)
 {
-        return create_umr_res(dev);
+        ib_unregister_device(&dev->ib_dev);
 }
 
-static void mlx5_ib_stage_umr_res_cleanup(struct mlx5_ib_dev *dev)
+static int mlx5_ib_stage_post_ib_reg_umr_init(struct mlx5_ib_dev *dev)
 {
-        destroy_umrc_res(dev);
+        return create_umr_res(dev);
 }
 
 static int mlx5_ib_stage_delay_drop_init(struct mlx5_ib_dev *dev)
@@ -4985,12 +4982,15 @@ static const struct mlx5_ib_profile pf_profile = {
         STAGE_CREATE(MLX5_IB_STAGE_BFREG,
                      mlx5_ib_stage_bfrag_init,
                      mlx5_ib_stage_bfrag_cleanup),
+        STAGE_CREATE(MLX5_IB_STAGE_PRE_IB_REG_UMR,
+                     NULL,
+                     mlx5_ib_stage_pre_ib_reg_umr_cleanup),
         STAGE_CREATE(MLX5_IB_STAGE_IB_REG,
                      mlx5_ib_stage_ib_reg_init,
                      mlx5_ib_stage_ib_reg_cleanup),
-        STAGE_CREATE(MLX5_IB_STAGE_UMR_RESOURCES,
-                     mlx5_ib_stage_umr_res_init,
-                     mlx5_ib_stage_umr_res_cleanup),
+        STAGE_CREATE(MLX5_IB_STAGE_POST_IB_REG_UMR,
+                     mlx5_ib_stage_post_ib_reg_umr_init,
+                     NULL),
         STAGE_CREATE(MLX5_IB_STAGE_DELAY_DROP,
                      mlx5_ib_stage_delay_drop_init,
                      mlx5_ib_stage_delay_drop_cleanup),
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 139385129973..a5272499b600 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -739,8 +739,9 @@ enum mlx5_ib_stages {
         MLX5_IB_STAGE_CONG_DEBUGFS,
         MLX5_IB_STAGE_UAR,
         MLX5_IB_STAGE_BFREG,
+        MLX5_IB_STAGE_PRE_IB_REG_UMR,
         MLX5_IB_STAGE_IB_REG,
-        MLX5_IB_STAGE_UMR_RESOURCES,
+        MLX5_IB_STAGE_POST_IB_REG_UMR,
         MLX5_IB_STAGE_DELAY_DROP,
         MLX5_IB_STAGE_CLASS_ATTR,
         MLX5_IB_STAGE_MAX,
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 556e015678de..c51c602f06d6 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -838,7 +838,8 @@ static int mr_umem_get(struct ib_pd *pd, u64 start, u64 length,
         *umem = ib_umem_get(pd->uobject->context, start, length,
                             access_flags, 0);
         err = PTR_ERR_OR_ZERO(*umem);
-        if (err < 0) {
+        if (err) {
+                *umem = NULL;
                 mlx5_ib_err(dev, "umem get failed (%d)\n", err);
                 return err;
         }
@@ -1415,6 +1416,7 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
                 if (err) {
                         mlx5_ib_warn(dev, "Failed to rereg UMR\n");
                         ib_umem_release(mr->umem);
+                        mr->umem = NULL;
                         clean_mr(dev, mr);
                         return err;
                 }
@@ -1498,14 +1500,11 @@ static int clean_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
                 u32 key = mr->mmkey.key;
 
                 err = destroy_mkey(dev, mr);
-                kfree(mr);
                 if (err) {
                         mlx5_ib_warn(dev, "failed to destroy mkey 0x%x (%d)\n",
                                      key, err);
                         return err;
                 }
-        } else {
-                mlx5_mr_cache_free(dev, mr);
         }
 
         return 0;
@@ -1548,6 +1547,11 @@ static int dereg_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
                 atomic_sub(npages, &dev->mdev->priv.reg_pages);
         }
 
+        if (!mr->allocated_from_cache)
+                kfree(mr);
+        else
+                mlx5_mr_cache_free(dev, mr);
+
         return 0;
 }
 
@@ -1816,7 +1820,6 @@ mlx5_ib_sg_to_klms(struct mlx5_ib_mr *mr,
 
         mr->ibmr.iova = sg_dma_address(sg) + sg_offset;
         mr->ibmr.length = 0;
-        mr->ndescs = sg_nents;
 
         for_each_sg(sgl, sg, sg_nents, i) {
                 if (unlikely(i >= mr->max_descs))
@@ -1828,6 +1831,7 @@ mlx5_ib_sg_to_klms(struct mlx5_ib_mr *mr,
 
                 sg_offset = 0;
         }
+        mr->ndescs = i;
 
         if (sg_offset_p)
                 *sg_offset_p = sg_offset;
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 39d24bf694a8..a2e1aa86e133 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -1161,7 +1161,7 @@ static void destroy_raw_packet_qp_sq(struct mlx5_ib_dev *dev,
         ib_umem_release(sq->ubuffer.umem);
 }
 
-static int get_rq_pas_size(void *qpc)
+static size_t get_rq_pas_size(void *qpc)
 {
         u32 log_page_size = MLX5_GET(qpc, qpc, log_page_size) + 12;
         u32 log_rq_stride = MLX5_GET(qpc, qpc, log_rq_stride);
@@ -1177,7 +1177,8 @@ static int get_rq_pas_size(void *qpc)
 }
 
 static int create_raw_packet_qp_rq(struct mlx5_ib_dev *dev,
-                                   struct mlx5_ib_rq *rq, void *qpin)
+                                   struct mlx5_ib_rq *rq, void *qpin,
+                                   size_t qpinlen)
 {
         struct mlx5_ib_qp *mqp = rq->base.container_mibqp;
         __be64 *pas;
@@ -1186,9 +1187,12 @@ static int create_raw_packet_qp_rq(struct mlx5_ib_dev *dev,
         void *rqc;
         void *wq;
         void *qpc = MLX5_ADDR_OF(create_qp_in, qpin, qpc);
-        int inlen;
+        size_t rq_pas_size = get_rq_pas_size(qpc);
+        size_t inlen;
         int err;
-        u32 rq_pas_size = get_rq_pas_size(qpc);
+
+        if (qpinlen < rq_pas_size + MLX5_BYTE_OFF(create_qp_in, pas))
+                return -EINVAL;
 
         inlen = MLX5_ST_SZ_BYTES(create_rq_in) + rq_pas_size;
         in = kvzalloc(inlen, GFP_KERNEL);
@@ -1277,7 +1281,7 @@ static void destroy_raw_packet_qp_tir(struct mlx5_ib_dev *dev,
 }
 
 static int create_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
-                                u32 *in,
+                                u32 *in, size_t inlen,
                                 struct ib_pd *pd)
 {
         struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
@@ -1309,7 +1313,7 @@ static int create_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
                         rq->flags |= MLX5_IB_RQ_CVLAN_STRIPPING;
                 if (qp->flags & MLX5_IB_QP_PCI_WRITE_END_PADDING)
                         rq->flags |= MLX5_IB_RQ_PCI_WRITE_END_PADDING;
-                err = create_raw_packet_qp_rq(dev, rq, in);
+                err = create_raw_packet_qp_rq(dev, rq, in, inlen);
                 if (err)
                         goto err_destroy_sq;
 
@@ -1584,6 +1588,7 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
         u32 uidx = MLX5_IB_DEFAULT_UIDX;
         struct mlx5_ib_create_qp ucmd;
         struct mlx5_ib_qp_base *base;
+        int mlx5_st;
         void *qpc;
         u32 *in;
         int err;
@@ -1592,6 +1597,10 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
         spin_lock_init(&qp->sq.lock);
         spin_lock_init(&qp->rq.lock);
 
+        mlx5_st = to_mlx5_st(init_attr->qp_type);
+        if (mlx5_st < 0)
+                return -EINVAL;
+
         if (init_attr->rwq_ind_tbl) {
                 if (!udata)
                         return -ENOSYS;
@@ -1753,7 +1762,7 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
 
         qpc = MLX5_ADDR_OF(create_qp_in, in, qpc);
 
-        MLX5_SET(qpc, qpc, st, to_mlx5_st(init_attr->qp_type));
+        MLX5_SET(qpc, qpc, st, mlx5_st);
         MLX5_SET(qpc, qpc, pm_state, MLX5_QP_PM_MIGRATED);
 
         if (init_attr->qp_type != MLX5_IB_QPT_REG_UMR)
@@ -1867,11 +1876,16 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
                 }
         }
 
+        if (inlen < 0) {
+                err = -EINVAL;
+                goto err;
+        }
+
         if (init_attr->qp_type == IB_QPT_RAW_PACKET ||
             qp->flags & MLX5_IB_QP_UNDERLAY) {
                 qp->raw_packet_qp.sq.ubuffer.buf_addr = ucmd.sq_buf_addr;
                 raw_packet_qp_copy_info(qp, &qp->raw_packet_qp);
-                err = create_raw_packet_qp(dev, qp, in, pd);
+                err = create_raw_packet_qp(dev, qp, in, inlen, pd);
         } else {
                 err = mlx5_core_create_qp(dev->mdev, &base->mqp, in, inlen);
         }
@@ -3095,8 +3109,10 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
                 goto out;
 
         if (mlx5_cur >= MLX5_QP_NUM_STATE || mlx5_new >= MLX5_QP_NUM_STATE ||
-            !optab[mlx5_cur][mlx5_new])
+            !optab[mlx5_cur][mlx5_new]) {
+                err = -EINVAL;
                 goto out;
+        }
 
         op = optab[mlx5_cur][mlx5_new];
         optpar = ib_mask_to_mlx5_opt(attr_mask);
diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index 6d5fadad9090..3c7522d025f2 100644
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -241,8 +241,8 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
 {
         struct mlx5_ib_dev *dev = to_mdev(pd->device);
         struct mlx5_ib_srq *srq;
-        int desc_size;
-        int buf_size;
+        size_t desc_size;
+        size_t buf_size;
         int err;
         struct mlx5_srq_attr in = {0};
         __u32 max_srq_wqes = 1 << MLX5_CAP_GEN(dev->mdev, log_max_srq_sz);
@@ -266,15 +266,18 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
 
         desc_size = sizeof(struct mlx5_wqe_srq_next_seg) +
                     srq->msrq.max_gs * sizeof(struct mlx5_wqe_data_seg);
+        if (desc_size == 0 || srq->msrq.max_gs > desc_size)
+                return ERR_PTR(-EINVAL);
         desc_size = roundup_pow_of_two(desc_size);
-        desc_size = max_t(int, 32, desc_size);
+        desc_size = max_t(size_t, 32, desc_size);
+        if (desc_size < sizeof(struct mlx5_wqe_srq_next_seg))
+                return ERR_PTR(-EINVAL);
         srq->msrq.max_avail_gather = (desc_size - sizeof(struct mlx5_wqe_srq_next_seg)) /
                 sizeof(struct mlx5_wqe_data_seg);
         srq->msrq.wqe_shift = ilog2(desc_size);
         buf_size = srq->msrq.max * desc_size;
-        mlx5_ib_dbg(dev, "desc_size 0x%x, req wr 0x%x, srq size 0x%x, max_gs 0x%x, max_avail_gather 0x%x\n",
-                    desc_size, init_attr->attr.max_wr, srq->msrq.max, srq->msrq.max_gs,
-                    srq->msrq.max_avail_gather);
+        if (buf_size < desc_size)
+                return ERR_PTR(-EINVAL);
         in.type = init_attr->srq_type;
 
         if (pd->uobject)
diff --git a/drivers/infiniband/hw/qedr/qedr_iw_cm.c b/drivers/infiniband/hw/qedr/qedr_iw_cm.c
index 478b7317b80a..26dc374787f7 100644
--- a/drivers/infiniband/hw/qedr/qedr_iw_cm.c
+++ b/drivers/infiniband/hw/qedr/qedr_iw_cm.c
@@ -458,8 +458,7 @@ qedr_addr6_resolve(struct qedr_dev *dev,
                 }
                 return -EINVAL;
         }
-        neigh = dst_neigh_lookup(dst, &dst_in);
-
+        neigh = dst_neigh_lookup(dst, &fl6.daddr);
         if (neigh) {
                 rcu_read_lock();
                 if (neigh->nud_state & NUD_VALID) {
@@ -494,10 +493,14 @@ int qedr_iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 
         qp = idr_find(&dev->qpidr, conn_param->qpn);
 
-        laddr = (struct sockaddr_in *)&cm_id->local_addr;
-        raddr = (struct sockaddr_in *)&cm_id->remote_addr;
-        laddr6 = (struct sockaddr_in6 *)&cm_id->local_addr;
-        raddr6 = (struct sockaddr_in6 *)&cm_id->remote_addr;
+        laddr = (struct sockaddr_in *)&cm_id->m_local_addr;
+        raddr = (struct sockaddr_in *)&cm_id->m_remote_addr;
+        laddr6 = (struct sockaddr_in6 *)&cm_id->m_local_addr;
+        raddr6 = (struct sockaddr_in6 *)&cm_id->m_remote_addr;
+
+        DP_DEBUG(dev, QEDR_MSG_IWARP, "MAPPED %d %d\n",
+                 ntohs(((struct sockaddr_in *)&cm_id->remote_addr)->sin_port),
+                 ntohs(raddr->sin_port));
 
         DP_DEBUG(dev, QEDR_MSG_IWARP,
                  "Connect source address: %pISpc, remote address: %pISpc\n",
@@ -599,8 +602,8 @@ int qedr_iw_create_listen(struct iw_cm_id *cm_id, int backlog)
         int rc;
         int i;
 
-        laddr = (struct sockaddr_in *)&cm_id->local_addr;
-        laddr6 = (struct sockaddr_in6 *)&cm_id->local_addr;
+        laddr = (struct sockaddr_in *)&cm_id->m_local_addr;
+        laddr6 = (struct sockaddr_in6 *)&cm_id->m_local_addr;
 
         DP_DEBUG(dev, QEDR_MSG_IWARP,
                  "Create Listener address: %pISpc\n", &cm_id->local_addr);
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 53f00dbf313f..875b17272d65 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -3034,6 +3034,11 @@ static int __qedr_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 
         switch (wr->opcode) {
         case IB_WR_SEND_WITH_IMM:
+                if (unlikely(rdma_protocol_iwarp(&dev->ibdev, 1))) {
+                        rc = -EINVAL;
+                        *bad_wr = wr;
+                        break;
+                }
                 wqe->req_type = RDMA_SQ_REQ_TYPE_SEND_WITH_IMM;
                 swqe = (struct rdma_sq_send_wqe_1st *)wqe;
                 swqe->wqe_size = 2;
@@ -3075,6 +3080,11 @@ static int __qedr_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                 break;
 
         case IB_WR_RDMA_WRITE_WITH_IMM:
+                if (unlikely(rdma_protocol_iwarp(&dev->ibdev, 1))) {
+                        rc = -EINVAL;
+                        *bad_wr = wr;
+                        break;
+                }
                 wqe->req_type = RDMA_SQ_REQ_TYPE_RDMA_WR_WITH_IMM;
                 rwqe = (struct rdma_sq_rdma_wqe_1st *)wqe;
 
@@ -3724,7 +3734,7 @@ int qedr_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
 {
         struct qedr_dev *dev = get_qedr_dev(ibcq->device);
         struct qedr_cq *cq = get_qedr_cq(ibcq);
-        union rdma_cqe *cqe = cq->latest_cqe;
+        union rdma_cqe *cqe;
         u32 old_cons, new_cons;
         unsigned long flags;
         int update = 0;
@@ -3741,6 +3751,7 @@ int qedr_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
                 return qedr_gsi_poll_cq(ibcq, num_entries, wc);
 
         spin_lock_irqsave(&cq->cq_lock, flags);
+        cqe = cq->latest_cqe;
         old_cons = qed_chain_get_cons_idx_u32(&cq->pbl);
         while (num_entries && is_valid_cqe(cq, cqe)) {
                 struct qedr_qp *qp;
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
index faa9478c14a6..f95b97646c25 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
@@ -114,6 +114,7 @@ struct ib_cq *pvrdma_create_cq(struct ib_device *ibdev,
         union pvrdma_cmd_resp rsp;
         struct pvrdma_cmd_create_cq *cmd = &req.create_cq;
         struct pvrdma_cmd_create_cq_resp *resp = &rsp.create_cq_resp;
+        struct pvrdma_create_cq_resp cq_resp = {0};
         struct pvrdma_create_cq ucmd;
 
         BUILD_BUG_ON(sizeof(struct pvrdma_cqe) != 64);
@@ -197,6 +198,7 @@ struct ib_cq *pvrdma_create_cq(struct ib_device *ibdev,
 
         cq->ibcq.cqe = resp->cqe;
         cq->cq_handle = resp->cq_handle;
+        cq_resp.cqn = resp->cq_handle;
         spin_lock_irqsave(&dev->cq_tbl_lock, flags);
         dev->cq_tbl[cq->cq_handle % dev->dsr->caps.max_cq] = cq;
         spin_unlock_irqrestore(&dev->cq_tbl_lock, flags);
@@ -205,7 +207,7 @@ struct ib_cq *pvrdma_create_cq(struct ib_device *ibdev,
                 cq->uar = &(to_vucontext(context)->uar);
 
                 /* Copy udata back. */
-                if (ib_copy_to_udata(udata, &cq->cq_handle, sizeof(__u32))) {
+                if (ib_copy_to_udata(udata, &cq_resp, sizeof(cq_resp))) {
                         dev_warn(&dev->pdev->dev,
                                  "failed to copy back udata\n");
                         pvrdma_destroy_cq(&cq->ibcq);
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
index 5acebb1ef631..af235967a9c2 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
@@ -113,6 +113,7 @@ struct ib_srq *pvrdma_create_srq(struct ib_pd *pd,
         union pvrdma_cmd_resp rsp;
         struct pvrdma_cmd_create_srq *cmd = &req.create_srq;
         struct pvrdma_cmd_create_srq_resp *resp = &rsp.create_srq_resp;
+        struct pvrdma_create_srq_resp srq_resp = {0};
         struct pvrdma_create_srq ucmd;
         unsigned long flags;
         int ret;
@@ -204,12 +205,13 @@ struct ib_srq *pvrdma_create_srq(struct ib_pd *pd,
         }
 
         srq->srq_handle = resp->srqn;
+        srq_resp.srqn = resp->srqn;
         spin_lock_irqsave(&dev->srq_tbl_lock, flags);
         dev->srq_tbl[srq->srq_handle % dev->dsr->caps.max_srq] = srq;
         spin_unlock_irqrestore(&dev->srq_tbl_lock, flags);
 
         /* Copy udata back. */
-        if (ib_copy_to_udata(udata, &srq->srq_handle, sizeof(__u32))) {
+        if (ib_copy_to_udata(udata, &srq_resp, sizeof(srq_resp))) {
                 dev_warn(&dev->pdev->dev, "failed to copy back udata\n");
                 pvrdma_destroy_srq(&srq->ibsrq);
                 return ERR_PTR(-EINVAL);
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
index 16b96616ef7e..a51463cd2f37 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
@@ -447,6 +447,7 @@ struct ib_pd *pvrdma_alloc_pd(struct ib_device *ibdev,
         union pvrdma_cmd_resp rsp;
         struct pvrdma_cmd_create_pd *cmd = &req.create_pd;
         struct pvrdma_cmd_create_pd_resp *resp = &rsp.create_pd_resp;
+        struct pvrdma_alloc_pd_resp pd_resp = {0};
         int ret;
         void *ptr;
 
@@ -475,9 +476,10 @@ struct ib_pd *pvrdma_alloc_pd(struct ib_device *ibdev,
         pd->privileged = !context;
         pd->pd_handle = resp->pd_handle;
         pd->pdn = resp->pd_handle;
+        pd_resp.pdn = resp->pd_handle;
 
         if (context) {
-                if (ib_copy_to_udata(udata, &pd->pdn, sizeof(__u32))) {
+                if (ib_copy_to_udata(udata, &pd_resp, sizeof(pd_resp))) {
                         dev_warn(&dev->pdev->dev,
                                  "failed to copy back protection domain\n");
                         pvrdma_dealloc_pd(&pd->ibpd);
diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c
index 1b2e5362a3ff..cc429b567d0a 100644
--- a/drivers/infiniband/sw/rdmavt/mr.c
+++ b/drivers/infiniband/sw/rdmavt/mr.c
@@ -489,11 +489,13 @@ static int rvt_check_refs(struct rvt_mregion *mr, const char *t)
         unsigned long timeout;
         struct rvt_dev_info *rdi = ib_to_rvt(mr->pd->device);
 
-        if (percpu_ref_is_zero(&mr->refcount))
-                return 0;
-        /* avoid dma mr */
-        if (mr->lkey)
+        if (mr->lkey) {
+                /* avoid dma mr */
                 rvt_dereg_clean_qps(mr);
+                /* @mr was indexed on rcu protected @lkey_table */
+                synchronize_rcu();
+        }
+
         timeout = wait_for_completion_timeout(&mr->comp, 5 * HZ);
         if (!timeout) {
                 rvt_pr_err(rdi,
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_fs.c b/drivers/infiniband/ulp/ipoib/ipoib_fs.c
index 11f74cbe6660..ea302b054601 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_fs.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_fs.c
@@ -281,8 +281,6 @@ void ipoib_delete_debug_files(struct net_device *dev)
 {
         struct ipoib_dev_priv *priv = ipoib_priv(dev);
 
-        WARN_ONCE(!priv->mcg_dentry, "null mcg debug file\n");
-        WARN_ONCE(!priv->path_dentry, "null path debug file\n");
         debugfs_remove(priv->mcg_dentry);
         debugfs_remove(priv->path_dentry);
         priv->mcg_dentry = priv->path_dentry = NULL;
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index 1f316d66e6f7..41614c185918 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -218,8 +218,10 @@ static void matrix_keypad_stop(struct input_dev *dev)
 {
         struct matrix_keypad *keypad = input_get_drvdata(dev);
 
+        spin_lock_irq(&keypad->lock);
         keypad->stopped = true;
-        mb();
+        spin_unlock_irq(&keypad->lock);
+
         flush_work(&keypad->work.work);
         /*
          * matrix_keypad_scan() will leave IRQs enabled;
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 3d2e23a0ae39..a246fc686bb7 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -173,7 +173,6 @@ static const char * const smbus_pnp_ids[] = {
         "LEN0046", /* X250 */
         "LEN004a", /* W541 */
         "LEN200f", /* T450s */
-        "LEN2018", /* T460p */
         NULL
 };
 
diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index db4f6bb502e3..a5ab774da4cc 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -1,11 +1,8 @@
-/*
- * Copyright (C) 2012 Samsung Electronics Co.Ltd
- * Author: Joonyoung Shim <jy0922.shim@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
+// SPDX-License-Identifier: GPL-2.0
+// Melfas MMS114/MMS152 touchscreen device driver
+//
+// Copyright (c) 2012 Samsung Electronics Co., Ltd.
+// Author: Joonyoung Shim <jy0922.shim@samsung.com>
 
 #include <linux/module.h>
 #include <linux/delay.h>
@@ -624,4 +621,4 @@ module_i2c_driver(mms114_driver);
 /* Module information */
 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
 MODULE_DESCRIPTION("MELFAS mms114 Touchscreen driver");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c
index 35a408d0ae4f..99bc9bd64b9e 100644
--- a/drivers/iommu/intel-svm.c
+++ b/drivers/iommu/intel-svm.c
@@ -205,7 +205,7 @@ static void intel_flush_svm_range_dev (struct intel_svm *svm, struct intel_svm_d
                          * for example, an "address" value of 0x12345f000 will
                          * flush from 0x123440000 to 0x12347ffff (256KiB). */
                         unsigned long last = address + ((unsigned long)(pages - 1) << VTD_PAGE_SHIFT);
-                        unsigned long mask = __rounddown_pow_of_two(address ^ last);;
+                        unsigned long mask = __rounddown_pow_of_two(address ^ last);
 
                         desc.high = QI_DEV_EIOTLB_ADDR((address & ~mask) | (mask - 1)) | QI_DEV_EIOTLB_SIZE;
                 } else {
diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c
index 55cfb986225b..faf734ff4cf3 100644
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -339,9 +339,6 @@ int __init bcm7038_l1_of_init(struct device_node *dn,
                 goto out_unmap;
         }
 
-        pr_info("registered BCM7038 L1 intc (mem: 0x%p, IRQs: %d)\n",
-                intc->cpus[0]->map_base, IRQS_PER_WORD * intc->n_words);
-
         return 0;
 
 out_unmap:
diff --git a/drivers/irqchip/irq-bcm7120-l2.c b/drivers/irqchip/irq-bcm7120-l2.c
index 983640eba418..8968e5e93fcb 100644
--- a/drivers/irqchip/irq-bcm7120-l2.c
+++ b/drivers/irqchip/irq-bcm7120-l2.c
@@ -318,9 +318,6 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
                 }
         }
 
-        pr_info("registered %s intc (mem: 0x%p, parent IRQ(s): %d)\n",
-                        intc_name, data->map_base[0], data->num_parent_irqs);
-
         return 0;
 
 out_free_domain:
diff --git a/drivers/irqchip/irq-brcmstb-l2.c b/drivers/irqchip/irq-brcmstb-l2.c
index 691d20eb0bec..0e65f609352e 100644
--- a/drivers/irqchip/irq-brcmstb-l2.c
+++ b/drivers/irqchip/irq-brcmstb-l2.c
@@ -262,9 +262,6 @@ static int __init brcmstb_l2_intc_of_init(struct device_node *np,
                 ct->chip.irq_set_wake = irq_gc_set_wake;
         }
 
-        pr_info("registered L2 intc (mem: 0x%p, parent irq: %d)\n",
-                        base, parent_irq);
-
         return 0;
 
 out_free_domain:
diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index 993a8426a453..1ff38aff9f29 100644
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -94,7 +94,7 @@ static struct irq_chip gicv2m_msi_irq_chip = {
 
 static struct msi_domain_info gicv2m_msi_domain_info = {
         .flags  = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-                   MSI_FLAG_PCI_MSIX),
+                   MSI_FLAG_PCI_MSIX | MSI_FLAG_MULTI_PCI_MSI),
         .chip   = &gicv2m_msi_irq_chip,
 };
 
@@ -155,18 +155,12 @@ static int gicv2m_irq_gic_domain_alloc(struct irq_domain *domain,
         return 0;
 }
 
-static void gicv2m_unalloc_msi(struct v2m_data *v2m, unsigned int hwirq)
+static void gicv2m_unalloc_msi(struct v2m_data *v2m, unsigned int hwirq,
+                               int nr_irqs)
 {
-        int pos;
-
-        pos = hwirq - v2m->spi_start;
-        if (pos < 0 || pos >= v2m->nr_spis) {
-                pr_err("Failed to teardown msi. Invalid hwirq %d\n", hwirq);
-                return;
-        }
-
         spin_lock(&v2m_lock);
-        __clear_bit(pos, v2m->bm);
+        bitmap_release_region(v2m->bm, hwirq - v2m->spi_start,
+                              get_count_order(nr_irqs));
         spin_unlock(&v2m_lock);
 }
 
@@ -174,13 +168,13 @@ static int gicv2m_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
                                    unsigned int nr_irqs, void *args)
 {
         struct v2m_data *v2m = NULL, *tmp;
-        int hwirq, offset, err = 0;
+        int hwirq, offset, i, err = 0;
 
         spin_lock(&v2m_lock);
         list_for_each_entry(tmp, &v2m_nodes, entry) {
-                offset = find_first_zero_bit(tmp->bm, tmp->nr_spis);
-                if (offset < tmp->nr_spis) {
-                        __set_bit(offset, tmp->bm);
+                offset = bitmap_find_free_region(tmp->bm, tmp->nr_spis,
+                                                 get_count_order(nr_irqs));
+                if (offset >= 0) {
                         v2m = tmp;
                         break;
                 }
@@ -192,16 +186,21 @@ static int gicv2m_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 
         hwirq = v2m->spi_start + offset;
 
-        err = gicv2m_irq_gic_domain_alloc(domain, virq, hwirq);
-        if (err) {
-                gicv2m_unalloc_msi(v2m, hwirq);
-                return err;
-        }
+        for (i = 0; i < nr_irqs; i++) {
+                err = gicv2m_irq_gic_domain_alloc(domain, virq + i, hwirq + i);
+                if (err)
+                        goto fail;
 
-        irq_domain_set_hwirq_and_chip(domain, virq, hwirq,
-                                      &gicv2m_irq_chip, v2m);
+                irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i,
+                                              &gicv2m_irq_chip, v2m);
+        }
 
         return 0;
+
+fail:
+        irq_domain_free_irqs_parent(domain, virq, nr_irqs);
+        gicv2m_unalloc_msi(v2m, hwirq, get_count_order(nr_irqs));
+        return err;
 }
 
 static void gicv2m_irq_domain_free(struct irq_domain *domain,
@@ -210,8 +209,7 @@ static void gicv2m_irq_domain_free(struct irq_domain *domain,
         struct irq_data *d = irq_domain_get_irq_data(domain, virq);
         struct v2m_data *v2m = irq_data_get_irq_chip_data(d);
 
-        BUG_ON(nr_irqs != 1);
-        gicv2m_unalloc_msi(v2m, d->hwirq);
+        gicv2m_unalloc_msi(v2m, d->hwirq, nr_irqs);
         irq_domain_free_irqs_parent(domain, virq, nr_irqs);
 }
 
diff --git a/drivers/irqchip/irq-gic-v3-its-pci-msi.c b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
index 14a8c0a7e095..25a98de5cfb2 100644
--- a/drivers/irqchip/irq-gic-v3-its-pci-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
@@ -132,6 +132,8 @@ static int __init its_pci_of_msi_init(void)
 
         for (np = of_find_matching_node(NULL, its_device_id); np;
              np = of_find_matching_node(np, its_device_id)) {
+                if (!of_device_is_available(np))
+                        continue;
                 if (!of_property_read_bool(np, "msi-controller"))
                         continue;
 
diff --git a/drivers/irqchip/irq-gic-v3-its-platform-msi.c b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
index 833a90fe33ae..8881a053c173 100644
--- a/drivers/irqchip/irq-gic-v3-its-platform-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
@@ -154,6 +154,8 @@ static void __init its_pmsi_of_init(void)
 
         for (np = of_find_matching_node(NULL, its_device_id); np;
              np = of_find_matching_node(np, its_device_id)) {
+                if (!of_device_is_available(np))
+                        continue;
                 if (!of_property_read_bool(np, "msi-controller"))
                         continue;
 
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 06f025fd5726..2cbb19cddbf8 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1412,7 +1412,7 @@ static struct irq_chip its_irq_chip = {
  * This gives us (((1UL << id_bits) - 8192) >> 5) possible allocations.
  */
 #define IRQS_PER_CHUNK_SHIFT    5
-#define IRQS_PER_CHUNK          (1 << IRQS_PER_CHUNK_SHIFT)
+#define IRQS_PER_CHUNK          (1UL << IRQS_PER_CHUNK_SHIFT)
 #define ITS_MAX_LPI_NRBITS      16 /* 64K LPIs */
 
 static unsigned long *lpi_bitmap;
@@ -2119,11 +2119,10 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id,
 
         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
         /*
-         * At least one bit of EventID is being used, hence a minimum
-         * of two entries. No, the architecture doesn't let you
-         * express an ITT with a single entry.
+         * We allocate at least one chunk worth of LPIs bet device,
+         * and thus that many ITEs. The device may require less though.
          */
-        nr_ites = max(2UL, roundup_pow_of_two(nvecs));
+        nr_ites = max(IRQS_PER_CHUNK, roundup_pow_of_two(nvecs));
         sz = nr_ites * its->ite_size;
         sz = max(sz, ITS_ITT_ALIGN) + ITS_ITT_ALIGN - 1;
         itt = kzalloc(sz, GFP_KERNEL);
@@ -2495,7 +2494,7 @@ static int its_vpe_set_affinity(struct irq_data *d,
 
 static void its_vpe_schedule(struct its_vpe *vpe)
 {
-        void * __iomem vlpi_base = gic_data_rdist_vlpi_base();
+        void __iomem *vlpi_base = gic_data_rdist_vlpi_base();
         u64 val;
 
         /* Schedule the VPE */
@@ -2527,7 +2526,7 @@ static void its_vpe_schedule(struct its_vpe *vpe)
 
 static void its_vpe_deschedule(struct its_vpe *vpe)
 {
-        void * __iomem vlpi_base = gic_data_rdist_vlpi_base();
+        void __iomem *vlpi_base = gic_data_rdist_vlpi_base();
         u32 count = 1000000;    /* 1s! */
         bool clean;
         u64 val;
@@ -3314,6 +3313,8 @@ static int __init its_of_probe(struct device_node *node)
 
         for (np = of_find_matching_node(node, its_device_id); np;
              np = of_find_matching_node(np, its_device_id)) {
+                if (!of_device_is_available(np))
+                        continue;
                 if (!of_property_read_bool(np, "msi-controller")) {
                         pr_warn("%pOF: no msi-controller property, ITS ignored\n",
                                 np);
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index a57c0fbbd34a..d99cc07903ec 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -673,7 +673,7 @@ static void gic_send_sgi(u64 cluster_id, u16 tlist, unsigned int irq)
                MPIDR_TO_SGI_RS(cluster_id)              |
                tlist << ICC_SGI1R_TARGET_LIST_SHIFT);
 
-        pr_debug("CPU%d: ICC_SGI1R_EL1 %llx\n", smp_processor_id(), val);
+        pr_devel("CPU%d: ICC_SGI1R_EL1 %llx\n", smp_processor_id(), val);
         gic_write_sgi1r(val);
 }
 
@@ -688,7 +688,7 @@ static void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
          * Ensure that stores to Normal memory are visible to the
          * other CPUs before issuing the IPI.
          */
-        smp_wmb();
+        wmb();
 
         for_each_cpu(cpu, mask) {
                 u64 cluster_id = MPIDR_TO_SGI_CLUSTER_ID(cpu_logical_map(cpu));
diff --git a/drivers/irqchip/irq-imx-gpcv2.c b/drivers/irqchip/irq-imx-gpcv2.c
index 675eda5ff2b8..4760307ab43f 100644
--- a/drivers/irqchip/irq-imx-gpcv2.c
+++ b/drivers/irqchip/irq-imx-gpcv2.c
@@ -28,20 +28,6 @@ struct gpcv2_irqchip_data {
 
 static struct gpcv2_irqchip_data *imx_gpcv2_instance;
 
-/*
- * Interface for the low level wakeup code.
- */
-u32 imx_gpcv2_get_wakeup_source(u32 **sources)
-{
-        if (!imx_gpcv2_instance)
-                return 0;
-
-        if (sources)
-                *sources = imx_gpcv2_instance->wakeup_sources;
-
-        return IMR_NUM;
-}
-
 static int gpcv2_wakeup_source_save(void)
 {
         struct gpcv2_irqchip_data *cd;
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index ef92a4d2038e..d32268cc1174 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -424,8 +424,6 @@ static int gic_shared_irq_domain_map(struct irq_domain *d, unsigned int virq,
         spin_lock_irqsave(&gic_lock, flags);
         write_gic_map_pin(intr, GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin);
         write_gic_map_vp(intr, BIT(mips_cm_vp_id(cpu)));
-        gic_clear_pcpu_masks(intr);
-        set_bit(intr, per_cpu_ptr(pcpu_masks, cpu));
         irq_data_update_effective_affinity(data, cpumask_of(cpu));
         spin_unlock_irqrestore(&gic_lock, flags);
 
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index 62f541f968f6..07074820a167 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -375,6 +375,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
         dev->ofdev.dev.of_node = np;
         dev->ofdev.archdata.dma_mask = 0xffffffffUL;
         dev->ofdev.dev.dma_mask = &dev->ofdev.archdata.dma_mask;
+        dev->ofdev.dev.coherent_dma_mask = dev->ofdev.archdata.dma_mask;
         dev->ofdev.dev.parent = parent;
         dev->ofdev.dev.bus = &macio_bus_type;
         dev->ofdev.dev.release = macio_release_dev;
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 1a46b41dac70..6422846b546e 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -659,11 +659,11 @@ static void do_bio_hook(struct search *s, struct bio *orig_bio)
 static void search_free(struct closure *cl)
 {
         struct search *s = container_of(cl, struct search, cl);
-        bio_complete(s);
 
         if (s->iop.bio)
                 bio_put(s->iop.bio);
 
+        bio_complete(s);
         closure_debug_destroy(cl);
         mempool_free(s, s->d->c->search);
 }
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 312895788036..f2273143b3cb 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -963,6 +963,7 @@ int bch_cached_dev_attach(struct cached_dev *dc, struct cache_set *c,
         uint32_t rtime = cpu_to_le32(get_seconds());
         struct uuid_entry *u;
         char buf[BDEVNAME_SIZE];
+        struct cached_dev *exist_dc, *t;
 
         bdevname(dc->bdev, buf);
 
@@ -987,6 +988,16 @@ int bch_cached_dev_attach(struct cached_dev *dc, struct cache_set *c,
                 return -EINVAL;
         }
 
+        /* Check whether already attached */
+        list_for_each_entry_safe(exist_dc, t, &c->cached_devs, list) {
+                if (!memcmp(dc->sb.uuid, exist_dc->sb.uuid, 16)) {
+                        pr_err("Tried to attach %s but duplicate UUID already attached",
+                                buf);
+
+                        return -EINVAL;
+                }
+        }
+
         u = uuid_find(c, dc->sb.uuid);
 
         if (u &&
@@ -1204,7 +1215,7 @@ static void register_bdev(struct cache_sb *sb, struct page *sb_page,
 
         return;
 err:
-        pr_notice("error opening %s: %s", bdevname(bdev, name), err);
+        pr_notice("error %s: %s", bdevname(bdev, name), err);
         bcache_device_stop(&dc->disk);
 }
 
@@ -1274,7 +1285,7 @@ static int flash_devs_run(struct cache_set *c)
         struct uuid_entry *u;
 
         for (u = c->uuids;
-             u < c->uuids + c->devices_max_used && !ret;
+             u < c->uuids + c->nr_uuids && !ret;
              u++)
                 if (UUID_FLASH_ONLY(u))
                         ret = flash_dev_run(c, u);
@@ -1883,6 +1894,8 @@ static int register_cache(struct cache_sb *sb, struct page *sb_page,
         const char *err = NULL; /* must be set for any error case */
         int ret = 0;
 
+        bdevname(bdev, name);
+
         memcpy(&ca->sb, sb, sizeof(struct cache_sb));
         ca->bdev = bdev;
         ca->bdev->bd_holder = ca;
@@ -1891,11 +1904,12 @@ static int register_cache(struct cache_sb *sb, struct page *sb_page,
         bio_first_bvec_all(&ca->sb_bio)->bv_page = sb_page;
         get_page(sb_page);
 
-        if (blk_queue_discard(bdev_get_queue(ca->bdev)))
+        if (blk_queue_discard(bdev_get_queue(bdev)))
                 ca->discard = CACHE_DISCARD(&ca->sb);
 
         ret = cache_alloc(ca);
         if (ret != 0) {
+                blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
                 if (ret == -ENOMEM)
                         err = "cache_alloc(): -ENOMEM";
                 else
@@ -1918,14 +1932,14 @@ static int register_cache(struct cache_sb *sb, struct page *sb_page,
                 goto out;
         }
 
-        pr_info("registered cache device %s", bdevname(bdev, name));
+        pr_info("registered cache device %s", name);
 
 out:
         kobject_put(&ca->kobj);
 
 err:
         if (err)
-                pr_notice("error opening %s: %s", bdevname(bdev, name), err);
+                pr_notice("error %s: %s", name, err);
 
         return ret;
 }
@@ -2014,6 +2028,7 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr,
         if (err)
                 goto err_close;
 
+        err = "failed to register device";
         if (SB_IS_BDEV(sb)) {
                 struct cached_dev *dc = kzalloc(sizeof(*dc), GFP_KERNEL);
                 if (!dc)
@@ -2028,7 +2043,7 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr,
                         goto err_close;
 
                 if (register_cache(sb, sb_page, bdev, ca) != 0)
-                        goto err_close;
+                        goto err;
         }
 out:
         if (sb_page)
@@ -2041,7 +2056,7 @@ out:
 err_close:
         blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
 err:
-        pr_info("error opening %s: %s", path, err);
+        pr_info("error %s: %s", path, err);
         ret = -EINVAL;
         goto out;
 }
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index 414c9af54ded..aa2032fa80d4 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -386,9 +386,6 @@ static void __cache_size_refresh(void)
 static void *alloc_buffer_data(struct dm_bufio_client *c, gfp_t gfp_mask,
                                enum data_mode *data_mode)
 {
-        unsigned noio_flag;
-        void *ptr;
-
         if (c->block_size <= DM_BUFIO_BLOCK_SIZE_SLAB_LIMIT) {
                 *data_mode = DATA_MODE_SLAB;
                 return kmem_cache_alloc(DM_BUFIO_CACHE(c), gfp_mask);
@@ -412,16 +409,15 @@ static void *alloc_buffer_data(struct dm_bufio_client *c, gfp_t gfp_mask,
          * all allocations done by this process (including pagetables) are done
          * as if GFP_NOIO was specified.
          */
+        if (gfp_mask & __GFP_NORETRY) {
+                unsigned noio_flag = memalloc_noio_save();
+                void *ptr = __vmalloc(c->block_size, gfp_mask, PAGE_KERNEL);
 
-        if (gfp_mask & __GFP_NORETRY)
-                noio_flag = memalloc_noio_save();
-
-        ptr = __vmalloc(c->block_size, gfp_mask, PAGE_KERNEL);
-
-        if (gfp_mask & __GFP_NORETRY)
                 memalloc_noio_restore(noio_flag);
+                return ptr;
+        }
 
-        return ptr;
+        return __vmalloc(c->block_size, gfp_mask, PAGE_KERNEL);
 }
 
 /*
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 7d3e572072f5..a05a560d3cba 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -211,29 +211,27 @@ static int alloc_multipath_stage2(struct dm_target *ti, struct multipath *m)
                 else
                         m->queue_mode = DM_TYPE_REQUEST_BASED;
 
-        } else if (m->queue_mode == DM_TYPE_BIO_BASED ||
-                   m->queue_mode == DM_TYPE_NVME_BIO_BASED) {
+        } else if (m->queue_mode == DM_TYPE_BIO_BASED) {
                 INIT_WORK(&m->process_queued_bios, process_queued_bios);
-
-                if (m->queue_mode == DM_TYPE_BIO_BASED) {
-                        /*
-                         * bio-based doesn't support any direct scsi_dh management;
-                         * it just discovers if a scsi_dh is attached.
-                         */
-                        set_bit(MPATHF_RETAIN_ATTACHED_HW_HANDLER, &m->flags);
-                }
-        }
-
-        if (m->queue_mode != DM_TYPE_NVME_BIO_BASED) {
-                set_bit(MPATHF_QUEUE_IO, &m->flags);
-                atomic_set(&m->pg_init_in_progress, 0);
-                atomic_set(&m->pg_init_count, 0);
-                m->pg_init_delay_msecs = DM_PG_INIT_DELAY_DEFAULT;
-                init_waitqueue_head(&m->pg_init_wait);
+                /*
+                 * bio-based doesn't support any direct scsi_dh management;
+                 * it just discovers if a scsi_dh is attached.
+                 */
+                set_bit(MPATHF_RETAIN_ATTACHED_HW_HANDLER, &m->flags);
         }
 
         dm_table_set_type(ti->table, m->queue_mode);
 
+        /*
+         * Init fields that are only used when a scsi_dh is attached
+         * - must do this unconditionally (really doesn't hurt non-SCSI uses)
+         */
+        set_bit(MPATHF_QUEUE_IO, &m->flags);
+        atomic_set(&m->pg_init_in_progress, 0);
+        atomic_set(&m->pg_init_count, 0);
+        m->pg_init_delay_msecs = DM_PG_INIT_DELAY_DEFAULT;
+        init_waitqueue_head(&m->pg_init_wait);
+
         return 0;
 }
 
@@ -337,9 +335,6 @@ static void __switch_pg(struct multipath *m, struct priority_group *pg)
 {
         m->current_pg = pg;
 
-        if (m->queue_mode == DM_TYPE_NVME_BIO_BASED)
-                return;
-
         /* Must we initialise the PG first, and queue I/O till it's ready? */
         if (m->hw_handler_name) {
                 set_bit(MPATHF_PG_INIT_REQUIRED, &m->flags);
@@ -385,8 +380,7 @@ static struct pgpath *choose_pgpath(struct multipath *m, size_t nr_bytes)
         unsigned bypassed = 1;
 
         if (!atomic_read(&m->nr_valid_paths)) {
-                if (m->queue_mode != DM_TYPE_NVME_BIO_BASED)
-                        clear_bit(MPATHF_QUEUE_IO, &m->flags);
+                clear_bit(MPATHF_QUEUE_IO, &m->flags);
                 goto failed;
         }
 
@@ -599,7 +593,7 @@ static struct pgpath *__map_bio(struct multipath *m, struct bio *bio)
         return pgpath;
 }
 
-static struct pgpath *__map_bio_nvme(struct multipath *m, struct bio *bio)
+static struct pgpath *__map_bio_fast(struct multipath *m, struct bio *bio)
 {
         struct pgpath *pgpath;
         unsigned long flags;
@@ -634,8 +628,8 @@ static int __multipath_map_bio(struct multipath *m, struct bio *bio,
 {
         struct pgpath *pgpath;
 
-        if (m->queue_mode == DM_TYPE_NVME_BIO_BASED)
-                pgpath = __map_bio_nvme(m, bio);
+        if (!m->hw_handler_name)
+                pgpath = __map_bio_fast(m, bio);
         else
                 pgpath = __map_bio(m, bio);
 
@@ -675,8 +669,7 @@ static void process_queued_io_list(struct multipath *m)
 {
         if (m->queue_mode == DM_TYPE_MQ_REQUEST_BASED)
                 dm_mq_kick_requeue_list(dm_table_get_md(m->ti->table));
-        else if (m->queue_mode == DM_TYPE_BIO_BASED ||
-                 m->queue_mode == DM_TYPE_NVME_BIO_BASED)
+        else if (m->queue_mode == DM_TYPE_BIO_BASED)
                 queue_work(kmultipathd, &m->process_queued_bios);
 }
 
@@ -811,15 +804,14 @@ static int parse_path_selector(struct dm_arg_set *as, struct priority_group *pg,
         return 0;
 }
 
-static int setup_scsi_dh(struct block_device *bdev, struct multipath *m, char **error)
+static int setup_scsi_dh(struct block_device *bdev, struct multipath *m,
+                         const char *attached_handler_name, char **error)
 {
         struct request_queue *q = bdev_get_queue(bdev);
-        const char *attached_handler_name;
         int r;
 
         if (test_bit(MPATHF_RETAIN_ATTACHED_HW_HANDLER, &m->flags)) {
 retain:
-                attached_handler_name = scsi_dh_attached_handler_name(q, GFP_KERNEL);
                 if (attached_handler_name) {
                         /*
                          * Clear any hw_handler_params associated with a
@@ -873,6 +865,8 @@ static struct pgpath *parse_path(struct dm_arg_set *as, struct path_selector *ps
         int r;
         struct pgpath *p;
         struct multipath *m = ti->private;
+        struct request_queue *q;
+        const char *attached_handler_name;
 
         /* we need at least a path arg */
         if (as->argc < 1) {
@@ -891,9 +885,11 @@ static struct pgpath *parse_path(struct dm_arg_set *as, struct path_selector *ps
                 goto bad;
         }
 
-        if (m->queue_mode != DM_TYPE_NVME_BIO_BASED) {
+        q = bdev_get_queue(p->path.dev->bdev);
+        attached_handler_name = scsi_dh_attached_handler_name(q, GFP_KERNEL);
+        if (attached_handler_name) {
                 INIT_DELAYED_WORK(&p->activate_path, activate_path_work);
-                r = setup_scsi_dh(p->path.dev->bdev, m, &ti->error);
+                r = setup_scsi_dh(p->path.dev->bdev, m, attached_handler_name, &ti->error);
                 if (r) {
                         dm_put_device(ti, p->path.dev);
                         goto bad;
@@ -1001,8 +997,7 @@ static int parse_hw_handler(struct dm_arg_set *as, struct multipath *m)
         if (!hw_argc)
                 return 0;
 
-        if (m->queue_mode == DM_TYPE_BIO_BASED ||
-            m->queue_mode == DM_TYPE_NVME_BIO_BASED) {
+        if (m->queue_mode == DM_TYPE_BIO_BASED) {
                 dm_consume_args(as, hw_argc);
                 DMERR("bio-based multipath doesn't allow hardware handler args");
                 return 0;
@@ -1091,8 +1086,6 @@ static int parse_features(struct dm_arg_set *as, struct multipath *m)
 
                         if (!strcasecmp(queue_mode_name, "bio"))
                                 m->queue_mode = DM_TYPE_BIO_BASED;
-                        else if (!strcasecmp(queue_mode_name, "nvme"))
-                                m->queue_mode = DM_TYPE_NVME_BIO_BASED;
                         else if (!strcasecmp(queue_mode_name, "rq"))
                                 m->queue_mode = DM_TYPE_REQUEST_BASED;
                         else if (!strcasecmp(queue_mode_name, "mq"))
@@ -1193,7 +1186,7 @@ static int multipath_ctr(struct dm_target *ti, unsigned argc, char **argv)
         ti->num_discard_bios = 1;
         ti->num_write_same_bios = 1;
         ti->num_write_zeroes_bios = 1;
-        if (m->queue_mode == DM_TYPE_BIO_BASED || m->queue_mode == DM_TYPE_NVME_BIO_BASED)
+        if (m->queue_mode == DM_TYPE_BIO_BASED)
                 ti->per_io_data_size = multipath_per_bio_data_size();
         else
                 ti->per_io_data_size = sizeof(struct dm_mpath_io);
@@ -1730,9 +1723,6 @@ static void multipath_status(struct dm_target *ti, status_type_t type,
                         case DM_TYPE_BIO_BASED:
                                 DMEMIT("queue_mode bio ");
                                 break;
-                        case DM_TYPE_NVME_BIO_BASED:
-                                DMEMIT("queue_mode nvme ");
-                                break;
                         case DM_TYPE_MQ_REQUEST_BASED:
                                 DMEMIT("queue_mode mq ");
                                 break;
@@ -2030,8 +2020,9 @@ static int multipath_busy(struct dm_target *ti)
  *---------------------------------------------------------------*/
 static struct target_type multipath_target = {
         .name = "multipath",
-        .version = {1, 12, 0},
-        .features = DM_TARGET_SINGLETON | DM_TARGET_IMMUTABLE,
+        .version = {1, 13, 0},
+        .features = DM_TARGET_SINGLETON | DM_TARGET_IMMUTABLE |
+                    DM_TARGET_PASSES_INTEGRITY,
         .module = THIS_MODULE,
         .ctr = multipath_ctr,
         .dtr = multipath_dtr,
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 7ef469e902c6..c1d1034ff7b7 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3408,9 +3408,10 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery,
                 set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags);
 
         } else {
-                if (test_bit(MD_RECOVERY_NEEDED, &recovery) ||
-                    test_bit(MD_RECOVERY_RESHAPE, &recovery) ||
-                    test_bit(MD_RECOVERY_RUNNING, &recovery))
+                if (!test_bit(MD_RECOVERY_INTR, &recovery) &&
+                    (test_bit(MD_RECOVERY_NEEDED, &recovery) ||
+                     test_bit(MD_RECOVERY_RESHAPE, &recovery) ||
+                     test_bit(MD_RECOVERY_RUNNING, &recovery)))
                         r = mddev->curr_resync_completed;
                 else
                         r = mddev->recovery_cp;
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 5fe7ec356c33..7eb3e2a3c07d 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -942,17 +942,12 @@ static int dm_table_determine_type(struct dm_table *t)
 
         if (t->type != DM_TYPE_NONE) {
                 /* target already set the table's type */
-                if (t->type == DM_TYPE_BIO_BASED)
-                        return 0;
-                else if (t->type == DM_TYPE_NVME_BIO_BASED) {
-                        if (!dm_table_does_not_support_partial_completion(t)) {
-                                DMERR("nvme bio-based is only possible with devices"
-                                      " that don't support partial completion");
-                                return -EINVAL;
-                        }
-                        /* Fallthru, also verify all devices are blk-mq */
+                if (t->type == DM_TYPE_BIO_BASED) {
+                        /* possibly upgrade to a variant of bio-based */
+                        goto verify_bio_based;
                 }
                 BUG_ON(t->type == DM_TYPE_DAX_BIO_BASED);
+                BUG_ON(t->type == DM_TYPE_NVME_BIO_BASED);
                 goto verify_rq_based;
         }
 
@@ -985,6 +980,7 @@ static int dm_table_determine_type(struct dm_table *t)
         }
 
         if (bio_based) {
+verify_bio_based:
                 /* We must use this table as bio-based */
                 t->type = DM_TYPE_BIO_BASED;
                 if (dm_table_supports_dax(t) ||
@@ -1755,7 +1751,7 @@ static int device_no_partial_completion(struct dm_target *ti, struct dm_dev *dev
         char b[BDEVNAME_SIZE];
 
         /* For now, NVMe devices are the only devices of this class */
-        return (strncmp(bdevname(dev->bdev, b), "nvme", 3) == 0);
+        return (strncmp(bdevname(dev->bdev, b), "nvme", 4) == 0);
 }
 
 static bool dm_table_does_not_support_partial_completion(struct dm_table *t)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index d6de00f367ef..45328d8b2859 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -458,9 +458,11 @@ static int dm_blk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
         return dm_get_geometry(md, geo);
 }
 
-static int dm_grab_bdev_for_ioctl(struct mapped_device *md,
-                                  struct block_device **bdev,
-                                  fmode_t *mode)
+static char *_dm_claim_ptr = "I belong to device-mapper";
+
+static int dm_get_bdev_for_ioctl(struct mapped_device *md,
+                                 struct block_device **bdev,
+                                 fmode_t *mode)
 {
         struct dm_target *tgt;
         struct dm_table *map;
@@ -490,6 +492,10 @@ retry:
                 goto out;
 
         bdgrab(*bdev);
+        r = blkdev_get(*bdev, *mode, _dm_claim_ptr);
+        if (r < 0)
+                goto out;
+
         dm_put_live_table(md, srcu_idx);
         return r;
 
@@ -508,7 +514,7 @@ static int dm_blk_ioctl(struct block_device *bdev, fmode_t mode,
         struct mapped_device *md = bdev->bd_disk->private_data;
         int r;
 
-        r = dm_grab_bdev_for_ioctl(md, &bdev, &mode);
+        r = dm_get_bdev_for_ioctl(md, &bdev, &mode);
         if (r < 0)
                 return r;
 
@@ -528,7 +534,7 @@ static int dm_blk_ioctl(struct block_device *bdev, fmode_t mode,
 
         r =  __blkdev_driver_ioctl(bdev, mode, cmd, arg);
 out:
-        bdput(bdev);
+        blkdev_put(bdev, mode);
         return r;
 }
 
@@ -708,14 +714,13 @@ static void dm_put_live_table_fast(struct mapped_device *md) __releases(RCU)
 static int open_table_device(struct table_device *td, dev_t dev,
                              struct mapped_device *md)
 {
-        static char *_claim_ptr = "I belong to device-mapper";
         struct block_device *bdev;
 
         int r;
 
         BUG_ON(td->dm_dev.bdev);
 
-        bdev = blkdev_get_by_dev(dev, td->dm_dev.mode | FMODE_EXCL, _claim_ptr);
+        bdev = blkdev_get_by_dev(dev, td->dm_dev.mode | FMODE_EXCL, _dm_claim_ptr);
         if (IS_ERR(bdev))
                 return PTR_ERR(bdev);
 
@@ -903,7 +908,8 @@ static void dec_pending(struct dm_io *io, blk_status_t error)
                         queue_io(md, bio);
                 } else {
                         /* done with normal IO or empty flush */
-                        bio->bi_status = io_error;
+                        if (io_error)
+                                bio->bi_status = io_error;
                         bio_endio(bio);
                 }
         }
@@ -3010,7 +3016,7 @@ static int dm_pr_reserve(struct block_device *bdev, u64 key, enum pr_type type,
         fmode_t mode;
         int r;
 
-        r = dm_grab_bdev_for_ioctl(md, &bdev, &mode);
+        r = dm_get_bdev_for_ioctl(md, &bdev, &mode);
         if (r < 0)
                 return r;
 
@@ -3020,7 +3026,7 @@ static int dm_pr_reserve(struct block_device *bdev, u64 key, enum pr_type type,
         else
                 r = -EOPNOTSUPP;
 
-        bdput(bdev);
+        blkdev_put(bdev, mode);
         return r;
 }
 
@@ -3031,7 +3037,7 @@ static int dm_pr_release(struct block_device *bdev, u64 key, enum pr_type type)
         fmode_t mode;
         int r;
 
-        r = dm_grab_bdev_for_ioctl(md, &bdev, &mode);
+        r = dm_get_bdev_for_ioctl(md, &bdev, &mode);
         if (r < 0)
                 return r;
 
@@ -3041,7 +3047,7 @@ static int dm_pr_release(struct block_device *bdev, u64 key, enum pr_type type)
         else
                 r = -EOPNOTSUPP;
 
-        bdput(bdev);
+        blkdev_put(bdev, mode);
         return r;
 }
 
@@ -3053,7 +3059,7 @@ static int dm_pr_preempt(struct block_device *bdev, u64 old_key, u64 new_key,
         fmode_t mode;
         int r;
 
-        r = dm_grab_bdev_for_ioctl(md, &bdev, &mode);
+        r = dm_get_bdev_for_ioctl(md, &bdev, &mode);
         if (r < 0)
                 return r;
 
@@ -3063,7 +3069,7 @@ static int dm_pr_preempt(struct block_device *bdev, u64 old_key, u64 new_key,
         else
                 r = -EOPNOTSUPP;
 
-        bdput(bdev);
+        blkdev_put(bdev, mode);
         return r;
 }
 
@@ -3074,7 +3080,7 @@ static int dm_pr_clear(struct block_device *bdev, u64 key)
         fmode_t mode;
         int r;
 
-        r = dm_grab_bdev_for_ioctl(md, &bdev, &mode);
+        r = dm_get_bdev_for_ioctl(md, &bdev, &mode);
         if (r < 0)
                 return r;
 
@@ -3084,7 +3090,7 @@ static int dm_pr_clear(struct block_device *bdev, u64 key)
         else
                 r = -EOPNOTSUPP;
 
-        bdput(bdev);
+        blkdev_put(bdev, mode);
         return r;
 }
 
diff --git a/drivers/md/md-multipath.c b/drivers/md/md-multipath.c
index e40065bdbfc8..0a7e99d62c69 100644
--- a/drivers/md/md-multipath.c
+++ b/drivers/md/md-multipath.c
@@ -157,7 +157,7 @@ static void multipath_status(struct seq_file *seq, struct mddev *mddev)
                 seq_printf (seq, "%s", rdev && test_bit(In_sync, &rdev->flags) ? "U" : "_");
         }
         rcu_read_unlock();
-        seq_printf (seq, "]");
+        seq_putc(seq, ']');
 }
 
 static int multipath_congested(struct mddev *mddev, int bits)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index bc67ab6844f0..254e44e44668 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -801,6 +801,9 @@ void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
         struct bio *bio;
         int ff = 0;
 
+        if (!page)
+                return;
+
         if (test_bit(Faulty, &rdev->flags))
                 return;
 
@@ -5452,6 +5455,7 @@ int md_run(struct mddev *mddev)
          * the only valid external interface is through the md
          * device.
          */
+        mddev->has_superblocks = false;
         rdev_for_each(rdev, mddev) {
                 if (test_bit(Faulty, &rdev->flags))
                         continue;
@@ -5465,6 +5469,9 @@ int md_run(struct mddev *mddev)
                                 set_disk_ro(mddev->gendisk, 1);
                 }
 
+                if (rdev->sb_page)
+                        mddev->has_superblocks = true;
+
                 /* perform some consistency tests on the device.
                  * We don't want the data to overlap the metadata,
                  * Internal Bitmap issues have been handled elsewhere.
@@ -5497,8 +5504,10 @@ int md_run(struct mddev *mddev)
         }
         if (mddev->sync_set == NULL) {
                 mddev->sync_set = bioset_create(BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);
-                if (!mddev->sync_set)
-                        return -ENOMEM;
+                if (!mddev->sync_set) {
+                        err = -ENOMEM;
+                        goto abort;
+                }
         }
 
         spin_lock(&pers_lock);
@@ -5511,7 +5520,8 @@ int md_run(struct mddev *mddev)
                 else
                         pr_warn("md: personality for level %s is not loaded!\n",
                                 mddev->clevel);
-                return -EINVAL;
+                err = -EINVAL;
+                goto abort;
         }
         spin_unlock(&pers_lock);
         if (mddev->level != pers->level) {
@@ -5524,7 +5534,8 @@ int md_run(struct mddev *mddev)
             pers->start_reshape == NULL) {
                 /* This personality cannot handle reshaping... */
                 module_put(pers->owner);
-                return -EINVAL;
+                err = -EINVAL;
+                goto abort;
         }
 
         if (pers->sync_request) {
@@ -5593,7 +5604,7 @@ int md_run(struct mddev *mddev)
                 mddev->private = NULL;
                 module_put(pers->owner);
                 bitmap_destroy(mddev);
-                return err;
+                goto abort;
         }
         if (mddev->queue) {
                 bool nonrot = true;
@@ -5655,6 +5666,18 @@ int md_run(struct mddev *mddev)
         sysfs_notify_dirent_safe(mddev->sysfs_action);
         sysfs_notify(&mddev->kobj, NULL, "degraded");
         return 0;
+
+abort:
+        if (mddev->bio_set) {
+                bioset_free(mddev->bio_set);
+                mddev->bio_set = NULL;
+        }
+        if (mddev->sync_set) {
+                bioset_free(mddev->sync_set);
+                mddev->sync_set = NULL;
+        }
+
+        return err;
 }
 EXPORT_SYMBOL_GPL(md_run);
 
@@ -8049,6 +8072,7 @@ EXPORT_SYMBOL(md_done_sync);
 bool md_write_start(struct mddev *mddev, struct bio *bi)
 {
         int did_change = 0;
+
         if (bio_data_dir(bi) != WRITE)
                 return true;
 
@@ -8081,6 +8105,8 @@ bool md_write_start(struct mddev *mddev, struct bio *bi)
         rcu_read_unlock();
         if (did_change)
                 sysfs_notify_dirent_safe(mddev->sysfs_state);
+        if (!mddev->has_superblocks)
+                return true;
         wait_event(mddev->sb_wait,
                    !test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags) ||
                    mddev->suspended);
@@ -8543,6 +8569,19 @@ void md_do_sync(struct md_thread *thread)
         set_mask_bits(&mddev->sb_flags, 0,
                       BIT(MD_SB_CHANGE_PENDING) | BIT(MD_SB_CHANGE_DEVS));
 
+        if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
+                        !test_bit(MD_RECOVERY_INTR, &mddev->recovery) &&
+                        mddev->delta_disks > 0 &&
+                        mddev->pers->finish_reshape &&
+                        mddev->pers->size &&
+                        mddev->queue) {
+                mddev_lock_nointr(mddev);
+                md_set_array_sectors(mddev, mddev->pers->size(mddev, 0, 0));
+                mddev_unlock(mddev);
+                set_capacity(mddev->gendisk, mddev->array_sectors);
+                revalidate_disk(mddev->gendisk);
+        }
+
         spin_lock(&mddev->lock);
         if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
                 /* We completed so min/max setting can be forgotten if used. */
@@ -8569,6 +8608,10 @@ static int remove_and_add_spares(struct mddev *mddev,
         int removed = 0;
         bool remove_some = false;
 
+        if (this && test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
+                /* Mustn't remove devices when resync thread is running */
+                return 0;
+
         rdev_for_each(rdev, mddev) {
                 if ((this == NULL || rdev == this) &&
                     rdev->raid_disk >= 0 &&
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 58cd20a5e85e..fbc925cce810 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -468,6 +468,8 @@ struct mddev {
         void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);
         struct md_cluster_info          *cluster_info;
         unsigned int                    good_device_nr; /* good device num within cluster raid */
+
+        bool    has_superblocks:1;
 };
 
 enum recovery_flags {
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index b2eae332e1a2..fe872dc6712e 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1108,7 +1108,7 @@ static void alloc_behind_master_bio(struct r1bio *r1_bio,
 
         bio_copy_data(behind_bio, bio);
 skip_copy:
-        r1_bio->behind_master_bio = behind_bio;;
+        r1_bio->behind_master_bio = behind_bio;
         set_bit(R1BIO_BehindIO, &r1_bio->state);
 
         return;
@@ -1809,6 +1809,17 @@ static int raid1_remove_disk(struct mddev *mddev, struct md_rdev *rdev)
                         struct md_rdev *repl =
                                 conf->mirrors[conf->raid_disks + number].rdev;
                         freeze_array(conf, 0);
+                        if (atomic_read(&repl->nr_pending)) {
+                                /* It means that some queued IO of retry_list
+                                 * hold repl. Thus, we cannot set replacement
+                                 * as NULL, avoiding rdev NULL pointer
+                                 * dereference in sync_request_write and
+                                 * handle_write_finished.
+                                 */
+                                err = -EBUSY;
+                                unfreeze_array(conf);
+                                goto abort;
+                        }
                         clear_bit(Replacement, &repl->flags);
                         p->rdev = repl;
                         conf->mirrors[conf->raid_disks + number].rdev = NULL;
diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h
index c7294e7557e0..eb84bc68e2fd 100644
--- a/drivers/md/raid1.h
+++ b/drivers/md/raid1.h
@@ -26,6 +26,18 @@
 #define BARRIER_BUCKETS_NR_BITS         (PAGE_SHIFT - ilog2(sizeof(atomic_t)))
 #define BARRIER_BUCKETS_NR              (1<<BARRIER_BUCKETS_NR_BITS)
 
+/* Note: raid1_info.rdev can be set to NULL asynchronously by raid1_remove_disk.
+ * There are three safe ways to access raid1_info.rdev.
+ * 1/ when holding mddev->reconfig_mutex
+ * 2/ when resync/recovery is known to be happening - i.e. in code that is
+ *    called as part of performing resync/recovery.
+ * 3/ while holding rcu_read_lock(), use rcu_dereference to get the pointer
+ *    and if it is non-NULL, increment rdev->nr_pending before dropping the
+ *    RCU lock.
+ * When .rdev is set to NULL, the nr_pending count checked again and if it has
+ * been incremented, the pointer is put back in .rdev.
+ */
+
 struct raid1_info {
         struct md_rdev  *rdev;
         sector_t        head_position;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 99c9207899a7..c5e6c60fc0d4 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -141,7 +141,7 @@ static void r10bio_pool_free(void *r10_bio, void *data)
 #define RESYNC_WINDOW (1024*1024)
 /* maximum number of concurrent requests, memory permitting */
 #define RESYNC_DEPTH (32*1024*1024/RESYNC_BLOCK_SIZE)
-#define CLUSTER_RESYNC_WINDOW (16 * RESYNC_WINDOW)
+#define CLUSTER_RESYNC_WINDOW (32 * RESYNC_WINDOW)
 #define CLUSTER_RESYNC_WINDOW_SECTORS (CLUSTER_RESYNC_WINDOW >> 9)
 
 /*
@@ -2655,7 +2655,8 @@ static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio)
                 for (m = 0; m < conf->copies; m++) {
                         int dev = r10_bio->devs[m].devnum;
                         rdev = conf->mirrors[dev].rdev;
-                        if (r10_bio->devs[m].bio == NULL)
+                        if (r10_bio->devs[m].bio == NULL ||
+                                r10_bio->devs[m].bio->bi_end_io == NULL)
                                 continue;
                         if (!r10_bio->devs[m].bio->bi_status) {
                                 rdev_clear_badblocks(
@@ -2670,7 +2671,8 @@ static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio)
                                         md_error(conf->mddev, rdev);
                         }
                         rdev = conf->mirrors[dev].replacement;
-                        if (r10_bio->devs[m].repl_bio == NULL)
+                        if (r10_bio->devs[m].repl_bio == NULL ||
+                                r10_bio->devs[m].repl_bio->bi_end_io == NULL)
                                 continue;
 
                         if (!r10_bio->devs[m].repl_bio->bi_status) {
@@ -3782,7 +3784,7 @@ static int raid10_run(struct mddev *mddev)
                 if (fc > 1 || fo > 0) {
                         pr_err("only near layout is supported by clustered"
                                 " raid10\n");
-                        goto out;
+                        goto out_free_conf;
                 }
         }
 
@@ -4830,17 +4832,11 @@ static void raid10_finish_reshape(struct mddev *mddev)
                 return;
 
         if (mddev->delta_disks > 0) {
-                sector_t size = raid10_size(mddev, 0, 0);
-                md_set_array_sectors(mddev, size);
                 if (mddev->recovery_cp > mddev->resync_max_sectors) {
                         mddev->recovery_cp = mddev->resync_max_sectors;
                         set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
                 }
-                mddev->resync_max_sectors = size;
-                if (mddev->queue) {
-                        set_capacity(mddev->gendisk, mddev->array_sectors);
-                        revalidate_disk(mddev->gendisk);
-                }
+                mddev->resync_max_sectors = mddev->array_sectors;
         } else {
                 int d;
                 rcu_read_lock();
diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h
index db2ac22ac1b4..e2e8840de9bf 100644
--- a/drivers/md/raid10.h
+++ b/drivers/md/raid10.h
@@ -2,6 +2,19 @@
 #ifndef _RAID10_H
 #define _RAID10_H
 
+/* Note: raid10_info.rdev can be set to NULL asynchronously by
+ * raid10_remove_disk.
+ * There are three safe ways to access raid10_info.rdev.
+ * 1/ when holding mddev->reconfig_mutex
+ * 2/ when resync/recovery/reshape is known to be happening - i.e. in code
+ *    that is called as part of performing resync/recovery/reshape.
+ * 3/ while holding rcu_read_lock(), use rcu_dereference to get the pointer
+ *    and if it is non-NULL, increment rdev->nr_pending before dropping the
+ *    RCU lock.
+ * When .rdev is set to NULL, the nr_pending count checked again and if it has
+ * been incremented, the pointer is put back in .rdev.
+ */
+
 struct raid10_info {
         struct md_rdev  *rdev, *replacement;
         sector_t        head_position;
diff --git a/drivers/md/raid5-log.h b/drivers/md/raid5-log.h
index 0c76bcedfc1c..a001808a2b77 100644
--- a/drivers/md/raid5-log.h
+++ b/drivers/md/raid5-log.h
@@ -44,6 +44,7 @@ extern void ppl_write_stripe_run(struct r5conf *conf);
 extern void ppl_stripe_write_finished(struct stripe_head *sh);
 extern int ppl_modify_log(struct r5conf *conf, struct md_rdev *rdev, bool add);
 extern void ppl_quiesce(struct r5conf *conf, int quiesce);
+extern int ppl_handle_flush_request(struct r5l_log *log, struct bio *bio);
 
 static inline bool raid5_has_ppl(struct r5conf *conf)
 {
@@ -104,7 +105,7 @@ static inline int log_handle_flush_request(struct r5conf *conf, struct bio *bio)
         if (conf->log)
                 ret = r5l_handle_flush_request(conf->log, bio);
         else if (raid5_has_ppl(conf))
-                ret = 0;
+                ret = ppl_handle_flush_request(conf->log, bio);
 
         return ret;
 }
diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index 2764c2290062..42890a08375b 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -693,6 +693,16 @@ void ppl_quiesce(struct r5conf *conf, int quiesce)
         }
 }
 
+int ppl_handle_flush_request(struct r5l_log *log, struct bio *bio)
+{
+        if (bio->bi_iter.bi_size == 0) {
+                bio_endio(bio);
+                return 0;
+        }
+        bio->bi_opf &= ~REQ_PREFLUSH;
+        return -EAGAIN;
+}
+
 void ppl_stripe_write_finished(struct stripe_head *sh)
 {
         struct ppl_io_unit *io;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 50d01144b805..b5d2601483e3 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2196,15 +2196,16 @@ static int grow_one_stripe(struct r5conf *conf, gfp_t gfp)
 static int grow_stripes(struct r5conf *conf, int num)
 {
         struct kmem_cache *sc;
+        size_t namelen = sizeof(conf->cache_name[0]);
         int devs = max(conf->raid_disks, conf->previous_raid_disks);
 
         if (conf->mddev->gendisk)
-                sprintf(conf->cache_name[0],
+                snprintf(conf->cache_name[0], namelen,
                         "raid%d-%s", conf->level, mdname(conf->mddev));
         else
-                sprintf(conf->cache_name[0],
+                snprintf(conf->cache_name[0], namelen,
                         "raid%d-%p", conf->level, conf->mddev);
-        sprintf(conf->cache_name[1], "%s-alt", conf->cache_name[0]);
+        snprintf(conf->cache_name[1], namelen, "%.27s-alt", conf->cache_name[0]);
 
         conf->active_name = 0;
         sc = kmem_cache_create(conf->cache_name[conf->active_name],
@@ -6764,9 +6765,7 @@ static void free_conf(struct r5conf *conf)
 
         log_exit(conf);
 
-        if (conf->shrinker.nr_deferred)
-                unregister_shrinker(&conf->shrinker);
-
+        unregister_shrinker(&conf->shrinker);
         free_thread_groups(conf);
         shrink_stripes(conf);
         raid5_free_percpu(conf);
@@ -8001,13 +8000,7 @@ static void raid5_finish_reshape(struct mddev *mddev)
 
         if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
 
-                if (mddev->delta_disks > 0) {
-                        md_set_array_sectors(mddev, raid5_size(mddev, 0, 0));
-                        if (mddev->queue) {
-                                set_capacity(mddev->gendisk, mddev->array_sectors);
-                                revalidate_disk(mddev->gendisk);
-                        }
-                } else {
+                if (mddev->delta_disks <= 0) {
                         int d;
                         spin_lock_irq(&conf->device_lock);
                         mddev->degraded = raid5_calc_degraded(conf);
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index 2e6123825095..3f8da26032ac 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -450,6 +450,18 @@ enum {
  * HANDLE gets cleared if stripe_handle leaves nothing locked.
  */
 
+/* Note: disk_info.rdev can be set to NULL asynchronously by raid5_remove_disk.
+ * There are three safe ways to access disk_info.rdev.
+ * 1/ when holding mddev->reconfig_mutex
+ * 2/ when resync/recovery/reshape is known to be happening - i.e. in code that
+ *    is called as part of performing resync/recovery/reshape.
+ * 3/ while holding rcu_read_lock(), use rcu_dereference to get the pointer
+ *    and if it is non-NULL, increment rdev->nr_pending before dropping the RCU
+ *    lock.
+ * When .rdev is set to NULL, the nr_pending count checked again and if
+ * it has been incremented, the pointer is put back in .rdev.
+ */
+
 struct disk_info {
         struct md_rdev  *rdev, *replacement;
         struct page     *extra_page; /* extra page to use in prexor */
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index 145e12bfb819..86c1a190d946 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -147,9 +147,11 @@ config DVB_CORE
 config DVB_MMAP
         bool "Enable DVB memory-mapped API (EXPERIMENTAL)"
         depends on DVB_CORE
+        depends on VIDEO_V4L2=y || VIDEO_V4L2=DVB_CORE
+        select VIDEOBUF2_VMALLOC
         default n
         help
-          This option enables DVB experimental memory-mapped API, with
+          This option enables DVB experimental memory-mapped API, which
           reduces the number of context switches to read DVB buffers, as
           the buffers can use mmap() syscalls.
 
diff --git a/drivers/media/common/videobuf2/Kconfig b/drivers/media/common/videobuf2/Kconfig
index 5df05250de94..17c32ea58395 100644
--- a/drivers/media/common/videobuf2/Kconfig
+++ b/drivers/media/common/videobuf2/Kconfig
@@ -3,6 +3,9 @@ config VIDEOBUF2_CORE
         select DMA_SHARED_BUFFER
         tristate
 
+config VIDEOBUF2_V4L2
+        tristate
+
 config VIDEOBUF2_MEMOPS
         tristate
         select FRAME_VECTOR
diff --git a/drivers/media/common/videobuf2/Makefile b/drivers/media/common/videobuf2/Makefile
index 19de5ccda20b..77bebe8b202f 100644
--- a/drivers/media/common/videobuf2/Makefile
+++ b/drivers/media/common/videobuf2/Makefile
@@ -1,5 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0
+videobuf2-common-objs := videobuf2-core.o
 
-obj-$(CONFIG_VIDEOBUF2_CORE) += videobuf2-core.o videobuf2-v4l2.o
+ifeq ($(CONFIG_TRACEPOINTS),y)
+  videobuf2-common-objs += vb2-trace.o
+endif
+
+obj-$(CONFIG_VIDEOBUF2_CORE) += videobuf2-common.o
+obj-$(CONFIG_VIDEOBUF2_V4L2) += videobuf2-v4l2.o
 obj-$(CONFIG_VIDEOBUF2_MEMOPS) += videobuf2-memops.o
 obj-$(CONFIG_VIDEOBUF2_VMALLOC) += videobuf2-vmalloc.o
 obj-$(CONFIG_VIDEOBUF2_DMA_CONTIG) += videobuf2-dma-contig.o
diff --git a/drivers/media/v4l2-core/vb2-trace.c b/drivers/media/common/videobuf2/vb2-trace.c
index 4c0f39d271f0..4c0f39d271f0 100644
--- a/drivers/media/v4l2-core/vb2-trace.c
+++ b/drivers/media/common/videobuf2/vb2-trace.c
diff --git a/drivers/media/dvb-core/Makefile b/drivers/media/dvb-core/Makefile
index 3a105d82019a..62b028ded9f7 100644
--- a/drivers/media/dvb-core/Makefile
+++ b/drivers/media/dvb-core/Makefile
@@ -4,7 +4,7 @@
 #
 
 dvb-net-$(CONFIG_DVB_NET) := dvb_net.o
-dvb-vb2-$(CONFIG_DVB_MMSP) := dvb_vb2.o
+dvb-vb2-$(CONFIG_DVB_MMAP) := dvb_vb2.o
 
 dvb-core-objs := dvbdev.o dmxdev.o dvb_demux.o                  \
                  dvb_ca_en50221.o dvb_frontend.o                \
diff --git a/drivers/media/dvb-core/dmxdev.c b/drivers/media/dvb-core/dmxdev.c
index 6d53af00190e..61a750fae465 100644
--- a/drivers/media/dvb-core/dmxdev.c
+++ b/drivers/media/dvb-core/dmxdev.c
@@ -128,11 +128,7 @@ static int dvb_dvr_open(struct inode *inode, struct file *file)
         struct dvb_device *dvbdev = file->private_data;
         struct dmxdev *dmxdev = dvbdev->priv;
         struct dmx_frontend *front;
-#ifndef DVB_MMAP
         bool need_ringbuffer = false;
-#else
-        const bool need_ringbuffer = true;
-#endif
 
         dprintk("%s\n", __func__);
 
@@ -144,17 +140,31 @@ static int dvb_dvr_open(struct inode *inode, struct file *file)
                 return -ENODEV;
         }
 
-#ifndef DVB_MMAP
+        dmxdev->may_do_mmap = 0;
+
+        /*
+         * The logic here is a little tricky due to the ifdef.
+         *
+         * The ringbuffer is used for both read and mmap.
+         *
+         * It is not needed, however, on two situations:
+         *      - Write devices (access with O_WRONLY);
+         *      - For duplex device nodes, opened with O_RDWR.
+         */
+
         if ((file->f_flags & O_ACCMODE) == O_RDONLY)
                 need_ringbuffer = true;
-#else
-        if ((file->f_flags & O_ACCMODE) == O_RDWR) {
+        else if ((file->f_flags & O_ACCMODE) == O_RDWR) {
                 if (!(dmxdev->capabilities & DMXDEV_CAP_DUPLEX)) {
+#ifdef CONFIG_DVB_MMAP
+                        dmxdev->may_do_mmap = 1;
+                        need_ringbuffer = true;
+#else
                         mutex_unlock(&dmxdev->mutex);
                         return -EOPNOTSUPP;
+#endif
                 }
         }
-#endif
 
         if (need_ringbuffer) {
                 void *mem;
@@ -169,8 +179,9 @@ static int dvb_dvr_open(struct inode *inode, struct file *file)
                         return -ENOMEM;
                 }
                 dvb_ringbuffer_init(&dmxdev->dvr_buffer, mem, DVR_BUFFER_SIZE);
-                dvb_vb2_init(&dmxdev->dvr_vb2_ctx, "dvr",
-                             file->f_flags & O_NONBLOCK);
+                if (dmxdev->may_do_mmap)
+                        dvb_vb2_init(&dmxdev->dvr_vb2_ctx, "dvr",
+                                     file->f_flags & O_NONBLOCK);
                 dvbdev->readers--;
         }
 
@@ -200,11 +211,6 @@ static int dvb_dvr_release(struct inode *inode, struct file *file)
 {
         struct dvb_device *dvbdev = file->private_data;
         struct dmxdev *dmxdev = dvbdev->priv;
-#ifndef DVB_MMAP
-        bool need_ringbuffer = false;
-#else
-        const bool need_ringbuffer = true;
-#endif
 
         mutex_lock(&dmxdev->mutex);
 
@@ -213,15 +219,14 @@ static int dvb_dvr_release(struct inode *inode, struct file *file)
                 dmxdev->demux->connect_frontend(dmxdev->demux,
                                                 dmxdev->dvr_orig_fe);
         }
-#ifndef DVB_MMAP
-        if ((file->f_flags & O_ACCMODE) == O_RDONLY)
-                need_ringbuffer = true;
-#endif
 
-        if (need_ringbuffer) {
-                if (dvb_vb2_is_streaming(&dmxdev->dvr_vb2_ctx))
-                        dvb_vb2_stream_off(&dmxdev->dvr_vb2_ctx);
-                dvb_vb2_release(&dmxdev->dvr_vb2_ctx);
+        if (((file->f_flags & O_ACCMODE) == O_RDONLY) ||
+            dmxdev->may_do_mmap) {
+                if (dmxdev->may_do_mmap) {
+                        if (dvb_vb2_is_streaming(&dmxdev->dvr_vb2_ctx))
+                                dvb_vb2_stream_off(&dmxdev->dvr_vb2_ctx);
+                        dvb_vb2_release(&dmxdev->dvr_vb2_ctx);
+                }
                 dvbdev->readers++;
                 if (dmxdev->dvr_buffer.data) {
                         void *mem = dmxdev->dvr_buffer.data;
@@ -380,7 +385,8 @@ static void dvb_dmxdev_filter_timer(struct dmxdev_filter *dmxdevfilter)
 
 static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len,
                                        const u8 *buffer2, size_t buffer2_len,
-                                       struct dmx_section_filter *filter)
+                                       struct dmx_section_filter *filter,
+                                       u32 *buffer_flags)
 {
         struct dmxdev_filter *dmxdevfilter = filter->priv;
         int ret;
@@ -399,10 +405,12 @@ static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len,
         dprintk("section callback %*ph\n", 6, buffer1);
         if (dvb_vb2_is_streaming(&dmxdevfilter->vb2_ctx)) {
                 ret = dvb_vb2_fill_buffer(&dmxdevfilter->vb2_ctx,
-                                          buffer1, buffer1_len);
+                                          buffer1, buffer1_len,
+                                          buffer_flags);
                 if (ret == buffer1_len)
                         ret = dvb_vb2_fill_buffer(&dmxdevfilter->vb2_ctx,
-                                                  buffer2, buffer2_len);
+                                                  buffer2, buffer2_len,
+                                                  buffer_flags);
         } else {
                 ret = dvb_dmxdev_buffer_write(&dmxdevfilter->buffer,
                                               buffer1, buffer1_len);
@@ -422,11 +430,12 @@ static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len,
 
 static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len,
                                   const u8 *buffer2, size_t buffer2_len,
-                                  struct dmx_ts_feed *feed)
+                                  struct dmx_ts_feed *feed,
+                                  u32 *buffer_flags)
 {
         struct dmxdev_filter *dmxdevfilter = feed->priv;
         struct dvb_ringbuffer *buffer;
-#ifdef DVB_MMAP
+#ifdef CONFIG_DVB_MMAP
         struct dvb_vb2_ctx *ctx;
 #endif
         int ret;
@@ -440,20 +449,22 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len,
         if (dmxdevfilter->params.pes.output == DMX_OUT_TAP ||
             dmxdevfilter->params.pes.output == DMX_OUT_TSDEMUX_TAP) {
                 buffer = &dmxdevfilter->buffer;
-#ifdef DVB_MMAP
+#ifdef CONFIG_DVB_MMAP
                 ctx = &dmxdevfilter->vb2_ctx;
 #endif
         } else {
                 buffer = &dmxdevfilter->dev->dvr_buffer;
-#ifdef DVB_MMAP
+#ifdef CONFIG_DVB_MMAP
                 ctx = &dmxdevfilter->dev->dvr_vb2_ctx;
 #endif
         }
 
         if (dvb_vb2_is_streaming(ctx)) {
-                ret = dvb_vb2_fill_buffer(ctx, buffer1, buffer1_len);
+                ret = dvb_vb2_fill_buffer(ctx, buffer1, buffer1_len,
+                                          buffer_flags);
                 if (ret == buffer1_len)
-                        ret = dvb_vb2_fill_buffer(ctx, buffer2, buffer2_len);
+                        ret = dvb_vb2_fill_buffer(ctx, buffer2, buffer2_len,
+                                                  buffer_flags);
         } else {
                 if (buffer->error) {
                         spin_unlock(&dmxdevfilter->dev->lock);
@@ -802,6 +813,12 @@ static int dvb_demux_open(struct inode *inode, struct file *file)
         mutex_init(&dmxdevfilter->mutex);
         file->private_data = dmxdevfilter;
 
+#ifdef CONFIG_DVB_MMAP
+        dmxdev->may_do_mmap = 1;
+#else
+        dmxdev->may_do_mmap = 0;
+#endif
+
         dvb_ringbuffer_init(&dmxdevfilter->buffer, NULL, 8192);
         dvb_vb2_init(&dmxdevfilter->vb2_ctx, "demux_filter",
                      file->f_flags & O_NONBLOCK);
@@ -1111,7 +1128,7 @@ static int dvb_demux_do_ioctl(struct file *file,
                 mutex_unlock(&dmxdevfilter->mutex);
                 break;
 
-#ifdef DVB_MMAP
+#ifdef CONFIG_DVB_MMAP
         case DMX_REQBUFS:
                 if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
                         mutex_unlock(&dmxdev->mutex);
@@ -1160,7 +1177,7 @@ static int dvb_demux_do_ioctl(struct file *file,
                 break;
 #endif
         default:
-                ret = -EINVAL;
+                ret = -ENOTTY;
                 break;
         }
         mutex_unlock(&dmxdev->mutex);
@@ -1199,13 +1216,16 @@ static __poll_t dvb_demux_poll(struct file *file, poll_table *wait)
         return mask;
 }
 
-#ifdef DVB_MMAP
+#ifdef CONFIG_DVB_MMAP
 static int dvb_demux_mmap(struct file *file, struct vm_area_struct *vma)
 {
         struct dmxdev_filter *dmxdevfilter = file->private_data;
         struct dmxdev *dmxdev = dmxdevfilter->dev;
         int ret;
 
+        if (!dmxdev->may_do_mmap)
+                return -ENOTTY;
+
         if (mutex_lock_interruptible(&dmxdev->mutex))
                 return -ERESTARTSYS;
 
@@ -1249,7 +1269,7 @@ static const struct file_operations dvb_demux_fops = {
         .release = dvb_demux_release,
         .poll = dvb_demux_poll,
         .llseek = default_llseek,
-#ifdef DVB_MMAP
+#ifdef CONFIG_DVB_MMAP
         .mmap = dvb_demux_mmap,
 #endif
 };
@@ -1280,7 +1300,7 @@ static int dvb_dvr_do_ioctl(struct file *file,
                 ret = dvb_dvr_set_buffer_size(dmxdev, arg);
                 break;
 
-#ifdef DVB_MMAP
+#ifdef CONFIG_DVB_MMAP
         case DMX_REQBUFS:
                 ret = dvb_vb2_reqbufs(&dmxdev->dvr_vb2_ctx, parg);
                 break;
@@ -1304,7 +1324,7 @@ static int dvb_dvr_do_ioctl(struct file *file,
                 break;
 #endif
         default:
-                ret = -EINVAL;
+                ret = -ENOTTY;
                 break;
         }
         mutex_unlock(&dmxdev->mutex);
@@ -1322,11 +1342,6 @@ static __poll_t dvb_dvr_poll(struct file *file, poll_table *wait)
         struct dvb_device *dvbdev = file->private_data;
         struct dmxdev *dmxdev = dvbdev->priv;
         __poll_t mask = 0;
-#ifndef DVB_MMAP
-        bool need_ringbuffer = false;
-#else
-        const bool need_ringbuffer = true;
-#endif
 
         dprintk("%s\n", __func__);
 
@@ -1337,11 +1352,8 @@ static __poll_t dvb_dvr_poll(struct file *file, poll_table *wait)
 
         poll_wait(file, &dmxdev->dvr_buffer.queue, wait);
 
-#ifndef DVB_MMAP
-        if ((file->f_flags & O_ACCMODE) == O_RDONLY)
-                need_ringbuffer = true;
-#endif
-        if (need_ringbuffer) {
+        if (((file->f_flags & O_ACCMODE) == O_RDONLY) ||
+            dmxdev->may_do_mmap) {
                 if (dmxdev->dvr_buffer.error)
                         mask |= (EPOLLIN | EPOLLRDNORM | EPOLLPRI | EPOLLERR);
 
@@ -1353,13 +1365,16 @@ static __poll_t dvb_dvr_poll(struct file *file, poll_table *wait)
         return mask;
 }
 
-#ifdef DVB_MMAP
+#ifdef CONFIG_DVB_MMAP
 static int dvb_dvr_mmap(struct file *file, struct vm_area_struct *vma)
 {
         struct dvb_device *dvbdev = file->private_data;
         struct dmxdev *dmxdev = dvbdev->priv;
         int ret;
 
+        if (!dmxdev->may_do_mmap)
+                return -ENOTTY;
+
         if (dmxdev->exit)
                 return -ENODEV;
 
@@ -1381,7 +1396,7 @@ static const struct file_operations dvb_dvr_fops = {
         .release = dvb_dvr_release,
         .poll = dvb_dvr_poll,
         .llseek = default_llseek,
-#ifdef DVB_MMAP
+#ifdef CONFIG_DVB_MMAP
         .mmap = dvb_dvr_mmap,
 #endif
 };
diff --git a/drivers/media/dvb-core/dvb_demux.c b/drivers/media/dvb-core/dvb_demux.c
index 210eed0269b0..f45091246bdc 100644
--- a/drivers/media/dvb-core/dvb_demux.c
+++ b/drivers/media/dvb-core/dvb_demux.c
@@ -55,6 +55,17 @@ MODULE_PARM_DESC(dvb_demux_feed_err_pkts,
                 dprintk(x);                             \
 } while (0)
 
+#ifdef CONFIG_DVB_DEMUX_SECTION_LOSS_LOG
+#  define dprintk_sect_loss(x...) dprintk(x)
+#else
+#  define dprintk_sect_loss(x...)
+#endif
+
+#define set_buf_flags(__feed, __flag)                   \
+        do {                                            \
+                (__feed)->buffer_flags |= (__flag);     \
+        } while (0)
+
 /******************************************************************************
  * static inlined helper functions
  ******************************************************************************/
@@ -104,31 +115,30 @@ static inline int dvb_dmx_swfilter_payload(struct dvb_demux_feed *feed,
 {
         int count = payload(buf);
         int p;
-#ifdef CONFIG_DVB_DEMUX_SECTION_LOSS_LOG
         int ccok;
         u8 cc;
-#endif
 
         if (count == 0)
                 return -1;
 
         p = 188 - count;
 
-#ifdef CONFIG_DVB_DEMUX_SECTION_LOSS_LOG
         cc = buf[3] & 0x0f;
         ccok = ((feed->cc + 1) & 0x0f) == cc;
         feed->cc = cc;
-        if (!ccok)
-                dprintk("missed packet: %d instead of %d!\n",
-                        cc, (feed->cc + 1) & 0x0f);
-#endif
+        if (!ccok) {
+                set_buf_flags(feed, DMX_BUFFER_FLAG_DISCONTINUITY_DETECTED);
+                dprintk_sect_loss("missed packet: %d instead of %d!\n",
+                                  cc, (feed->cc + 1) & 0x0f);
+        }
 
         if (buf[1] & 0x40)      // PUSI ?
                 feed->peslen = 0xfffa;
 
         feed->peslen += count;
 
-        return feed->cb.ts(&buf[p], count, NULL, 0, &feed->feed.ts);
+        return feed->cb.ts(&buf[p], count, NULL, 0, &feed->feed.ts,
+                           &feed->buffer_flags);
 }
 
 static int dvb_dmx_swfilter_sectionfilter(struct dvb_demux_feed *feed,
@@ -150,7 +160,7 @@ static int dvb_dmx_swfilter_sectionfilter(struct dvb_demux_feed *feed,
                 return 0;
 
         return feed->cb.sec(feed->feed.sec.secbuf, feed->feed.sec.seclen,
-                            NULL, 0, &f->filter);
+                            NULL, 0, &f->filter, &feed->buffer_flags);
 }
 
 static inline int dvb_dmx_swfilter_section_feed(struct dvb_demux_feed *feed)
@@ -169,8 +179,10 @@ static inline int dvb_dmx_swfilter_section_feed(struct dvb_demux_feed *feed)
         if (sec->check_crc) {
                 section_syntax_indicator = ((sec->secbuf[1] & 0x80) != 0);
                 if (section_syntax_indicator &&
-                    demux->check_crc32(feed, sec->secbuf, sec->seclen))
+                    demux->check_crc32(feed, sec->secbuf, sec->seclen)) {
+                        set_buf_flags(feed, DMX_BUFFER_FLAG_HAD_CRC32_DISCARD);
                         return -1;
+                }
         }
 
         do {
@@ -187,7 +199,6 @@ static void dvb_dmx_swfilter_section_new(struct dvb_demux_feed *feed)
 {
         struct dmx_section_feed *sec = &feed->feed.sec;
 
-#ifdef CONFIG_DVB_DEMUX_SECTION_LOSS_LOG
         if (sec->secbufp < sec->tsfeedp) {
                 int n = sec->tsfeedp - sec->secbufp;
 
@@ -197,12 +208,13 @@ static void dvb_dmx_swfilter_section_new(struct dvb_demux_feed *feed)
                  * but just first and last.
                  */
                 if (sec->secbuf[0] != 0xff || sec->secbuf[n - 1] != 0xff) {
-                        dprintk("section ts padding loss: %d/%d\n",
-                               n, sec->tsfeedp);
-                        dprintk("pad data: %*ph\n", n, sec->secbuf);
+                        set_buf_flags(feed,
+                                      DMX_BUFFER_FLAG_DISCONTINUITY_DETECTED);
+                        dprintk_sect_loss("section ts padding loss: %d/%d\n",
+                                          n, sec->tsfeedp);
+                        dprintk_sect_loss("pad data: %*ph\n", n, sec->secbuf);
                 }
         }
-#endif
 
         sec->tsfeedp = sec->secbufp = sec->seclen = 0;
         sec->secbuf = sec->secbuf_base;
@@ -237,11 +249,10 @@ static int dvb_dmx_swfilter_section_copy_dump(struct dvb_demux_feed *feed,
                 return 0;
 
         if (sec->tsfeedp + len > DMX_MAX_SECFEED_SIZE) {
-#ifdef CONFIG_DVB_DEMUX_SECTION_LOSS_LOG
-                dprintk("section buffer full loss: %d/%d\n",
-                        sec->tsfeedp + len - DMX_MAX_SECFEED_SIZE,
-                        DMX_MAX_SECFEED_SIZE);
-#endif
+                set_buf_flags(feed, DMX_BUFFER_FLAG_DISCONTINUITY_DETECTED);
+                dprintk_sect_loss("section buffer full loss: %d/%d\n",
+                                  sec->tsfeedp + len - DMX_MAX_SECFEED_SIZE,
+                                  DMX_MAX_SECFEED_SIZE);
                 len = DMX_MAX_SECFEED_SIZE - sec->tsfeedp;
         }
 
@@ -269,12 +280,13 @@ static int dvb_dmx_swfilter_section_copy_dump(struct dvb_demux_feed *feed,
                 sec->seclen = seclen;
                 sec->crc_val = ~0;
                 /* dump [secbuf .. secbuf+seclen) */
-                if (feed->pusi_seen)
+                if (feed->pusi_seen) {
                         dvb_dmx_swfilter_section_feed(feed);
-#ifdef CONFIG_DVB_DEMUX_SECTION_LOSS_LOG
-                else
-                        dprintk("pusi not seen, discarding section data\n");
-#endif
+                } else {
+                        set_buf_flags(feed,
+                                      DMX_BUFFER_FLAG_DISCONTINUITY_DETECTED);
+                        dprintk_sect_loss("pusi not seen, discarding section data\n");
+                }
                 sec->secbufp += seclen; /* secbufp and secbuf moving together is */
                 sec->secbuf += seclen;  /* redundant but saves pointer arithmetic */
         }
@@ -307,18 +319,22 @@ static int dvb_dmx_swfilter_section_packet(struct dvb_demux_feed *feed,
         }
 
         if (!ccok || dc_i) {
-#ifdef CONFIG_DVB_DEMUX_SECTION_LOSS_LOG
-                if (dc_i)
-                        dprintk("%d frame with disconnect indicator\n",
+                if (dc_i) {
+                        set_buf_flags(feed,
+                                      DMX_BUFFER_FLAG_DISCONTINUITY_INDICATOR);
+                        dprintk_sect_loss("%d frame with disconnect indicator\n",
                                 cc);
-                else
-                        dprintk("discontinuity: %d instead of %d. %d bytes lost\n",
+                } else {
+                        set_buf_flags(feed,
+                                      DMX_BUFFER_FLAG_DISCONTINUITY_DETECTED);
+                        dprintk_sect_loss("discontinuity: %d instead of %d. %d bytes lost\n",
                                 cc, (feed->cc + 1) & 0x0f, count + 4);
+                }
                 /*
-                 * those bytes under sume circumstances will again be reported
+                 * those bytes under some circumstances will again be reported
                  * in the following dvb_dmx_swfilter_section_new
                  */
-#endif
+
                 /*
                  * Discontinuity detected. Reset pusi_seen to
                  * stop feeding of suspicious data until next PUSI=1 arrives
@@ -326,6 +342,7 @@ static int dvb_dmx_swfilter_section_packet(struct dvb_demux_feed *feed,
                  * FIXME: does it make sense if the MPEG-TS is the one
                  *      reporting discontinuity?
                  */
+
                 feed->pusi_seen = false;
                 dvb_dmx_swfilter_section_new(feed);
         }
@@ -345,11 +362,11 @@ static int dvb_dmx_swfilter_section_packet(struct dvb_demux_feed *feed,
                         dvb_dmx_swfilter_section_new(feed);
                         dvb_dmx_swfilter_section_copy_dump(feed, after,
                                                            after_len);
+                } else if (count > 0) {
+                        set_buf_flags(feed,
+                                      DMX_BUFFER_FLAG_DISCONTINUITY_DETECTED);
+                        dprintk_sect_loss("PUSI=1 but %d bytes lost\n", count);
                 }
-#ifdef CONFIG_DVB_DEMUX_SECTION_LOSS_LOG
-                else if (count > 0)
-                        dprintk("PUSI=1 but %d bytes lost\n", count);
-#endif
         } else {
                 /* PUSI=0 (is not set), no section boundary */
                 dvb_dmx_swfilter_section_copy_dump(feed, &buf[p], count);
@@ -369,7 +386,8 @@ static inline void dvb_dmx_swfilter_packet_type(struct dvb_demux_feed *feed,
                         if (feed->ts_type & TS_PAYLOAD_ONLY)
                                 dvb_dmx_swfilter_payload(feed, buf);
                         else
-                                feed->cb.ts(buf, 188, NULL, 0, &feed->feed.ts);
+                                feed->cb.ts(buf, 188, NULL, 0, &feed->feed.ts,
+                                            &feed->buffer_flags);
                 }
                 /* Used only on full-featured devices */
                 if (feed->ts_type & TS_DECODER)
@@ -430,6 +448,11 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf)
         }
 
         if (buf[1] & 0x80) {
+                list_for_each_entry(feed, &demux->feed_list, list_head) {
+                        if ((feed->pid != pid) && (feed->pid != 0x2000))
+                                continue;
+                        set_buf_flags(feed, DMX_BUFFER_FLAG_TEI);
+                }
                 dprintk_tscheck("TEI detected. PID=0x%x data1=0x%x\n",
                                 pid, buf[1]);
                 /* data in this packet can't be trusted - drop it unless
@@ -445,6 +468,13 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf)
                                                 (demux->cnt_storage[pid] + 1) & 0xf;
 
                                 if ((buf[3] & 0xf) != demux->cnt_storage[pid]) {
+                                        list_for_each_entry(feed, &demux->feed_list, list_head) {
+                                                if ((feed->pid != pid) && (feed->pid != 0x2000))
+                                                        continue;
+                                                set_buf_flags(feed,
+                                                              DMX_BUFFER_PKT_COUNTER_MISMATCH);
+                                        }
+
                                         dprintk_tscheck("TS packet counter mismatch. PID=0x%x expected 0x%x got 0x%x\n",
                                                         pid, demux->cnt_storage[pid],
                                                         buf[3] & 0xf);
@@ -466,7 +496,8 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf)
                 if (feed->pid == pid)
                         dvb_dmx_swfilter_packet_type(feed, buf);
                 else if (feed->pid == 0x2000)
-                        feed->cb.ts(buf, 188, NULL, 0, &feed->feed.ts);
+                        feed->cb.ts(buf, 188, NULL, 0, &feed->feed.ts,
+                                    &feed->buffer_flags);
         }
 }
 
@@ -585,7 +616,8 @@ void dvb_dmx_swfilter_raw(struct dvb_demux *demux, const u8 *buf, size_t count)
 
         spin_lock_irqsave(&demux->lock, flags);
 
-        demux->feed->cb.ts(buf, count, NULL, 0, &demux->feed->feed.ts);
+        demux->feed->cb.ts(buf, count, NULL, 0, &demux->feed->feed.ts,
+                           &demux->feed->buffer_flags);
 
         spin_unlock_irqrestore(&demux->lock, flags);
 }
@@ -785,6 +817,7 @@ static int dvbdmx_allocate_ts_feed(struct dmx_demux *dmx,
         feed->demux = demux;
         feed->pid = 0xffff;
         feed->peslen = 0xfffa;
+        feed->buffer_flags = 0;
 
         (*ts_feed) = &feed->feed.ts;
         (*ts_feed)->parent = dmx;
@@ -1042,6 +1075,7 @@ static int dvbdmx_allocate_section_feed(struct dmx_demux *demux,
         dvbdmxfeed->cb.sec = callback;
         dvbdmxfeed->demux = dvbdmx;
         dvbdmxfeed->pid = 0xffff;
+        dvbdmxfeed->buffer_flags = 0;
         dvbdmxfeed->feed.sec.secbuf = dvbdmxfeed->feed.sec.secbuf_base;
         dvbdmxfeed->feed.sec.secbufp = dvbdmxfeed->feed.sec.seclen = 0;
         dvbdmxfeed->feed.sec.tsfeedp = 0;
diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c
index b6c7eec863b9..ba39f9942e1d 100644
--- a/drivers/media/dvb-core/dvb_net.c
+++ b/drivers/media/dvb-core/dvb_net.c
@@ -883,7 +883,8 @@ static void dvb_net_ule(struct net_device *dev, const u8 *buf, size_t buf_len)
 
 static int dvb_net_ts_callback(const u8 *buffer1, size_t buffer1_len,
                                const u8 *buffer2, size_t buffer2_len,
-                               struct dmx_ts_feed *feed)
+                               struct dmx_ts_feed *feed,
+                               u32 *buffer_flags)
 {
         struct net_device *dev = feed->priv;
 
@@ -992,7 +993,7 @@ static void dvb_net_sec(struct net_device *dev,
 
 static int dvb_net_sec_callback(const u8 *buffer1, size_t buffer1_len,
                  const u8 *buffer2, size_t buffer2_len,
-                 struct dmx_section_filter *filter)
+                 struct dmx_section_filter *filter, u32 *buffer_flags)
 {
         struct net_device *dev = filter->priv;
 
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c
index 763145d74e83..b811adf88afa 100644
--- a/drivers/media/dvb-core/dvb_vb2.c
+++ b/drivers/media/dvb-core/dvb_vb2.c
@@ -256,7 +256,8 @@ int dvb_vb2_is_streaming(struct dvb_vb2_ctx *ctx)
 }
 
 int dvb_vb2_fill_buffer(struct dvb_vb2_ctx *ctx,
-                        const unsigned char *src, int len)
+                        const unsigned char *src, int len,
+                        enum dmx_buffer_flags *buffer_flags)
 {
         unsigned long flags = 0;
         void *vbuf = NULL;
@@ -264,15 +265,17 @@ int dvb_vb2_fill_buffer(struct dvb_vb2_ctx *ctx,
         unsigned char *psrc = (unsigned char *)src;
         int ll = 0;
 
-        dprintk(3, "[%s] %d bytes are rcvd\n", ctx->name, len);
-        if (!src) {
-                dprintk(3, "[%s]:NULL pointer src\n", ctx->name);
-                /**normal case: This func is called twice from demux driver
-                 * once with valid src pointer, second time with NULL pointer
-                 */
+        /*
+         * normal case: This func is called twice from demux driver
+         * one with valid src pointer, second time with NULL pointer
+         */
+        if (!src || !len)
                 return 0;
-        }
         spin_lock_irqsave(&ctx->slock, flags);
+        if (buffer_flags && *buffer_flags) {
+                ctx->flags |= *buffer_flags;
+                *buffer_flags = 0;
+        }
         while (todo) {
                 if (!ctx->buf) {
                         if (list_empty(&ctx->dvb_q)) {
@@ -395,6 +398,7 @@ int dvb_vb2_qbuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
 
 int dvb_vb2_dqbuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
 {
+        unsigned long flags;
         int ret;
 
         ret = vb2_core_dqbuf(&ctx->vb_q, &b->index, b, ctx->nonblocking);
@@ -402,7 +406,16 @@ int dvb_vb2_dqbuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
                 dprintk(1, "[%s] errno=%d\n", ctx->name, ret);
                 return ret;
         }
-        dprintk(5, "[%s] index=%d\n", ctx->name, b->index);
+
+        spin_lock_irqsave(&ctx->slock, flags);
+        b->count = ctx->count++;
+        b->flags = ctx->flags;
+        ctx->flags = 0;
+        spin_unlock_irqrestore(&ctx->slock, flags);
+
+        dprintk(5, "[%s] index=%d, count=%d, flags=%d\n",
+                ctx->name, b->index, ctx->count, b->flags);
+
 
         return 0;
 }
diff --git a/drivers/media/dvb-frontends/m88ds3103.c b/drivers/media/dvb-frontends/m88ds3103.c
index 50bce68ffd66..65d157fe76d1 100644
--- a/drivers/media/dvb-frontends/m88ds3103.c
+++ b/drivers/media/dvb-frontends/m88ds3103.c
@@ -1262,11 +1262,12 @@ static int m88ds3103_select(struct i2c_mux_core *muxc, u32 chan)
  * New users must use I2C client binding directly!
  */
 struct dvb_frontend *m88ds3103_attach(const struct m88ds3103_config *cfg,
-                struct i2c_adapter *i2c, struct i2c_adapter **tuner_i2c_adapter)
+                                      struct i2c_adapter *i2c,
+                                      struct i2c_adapter **tuner_i2c_adapter)
 {
         struct i2c_client *client;
         struct i2c_board_info board_info;
-        struct m88ds3103_platform_data pdata;
+        struct m88ds3103_platform_data pdata = {};
 
         pdata.clk = cfg->clock;
         pdata.i2c_wr_max = cfg->i2c_wr_max;
@@ -1409,6 +1410,8 @@ static int m88ds3103_probe(struct i2c_client *client,
         case M88DS3103_CHIP_ID:
                 break;
         default:
+                ret = -ENODEV;
+                dev_err(&client->dev, "Unknown device. Chip_id=%02x\n", dev->chip_id);
                 goto err_kfree;
         }
 
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 3c1851984b90..2476d812f669 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -505,80 +505,77 @@ static struct i2c_vbi_ram_value vbi_ram_default[] =
         /* FIXME: Current api doesn't handle all VBI types, those not
            yet supported are placed under #if 0 */
 #if 0
-        {0x010, /* Teletext, SECAM, WST System A */
+        [0] = {0x010, /* Teletext, SECAM, WST System A */
                 {V4L2_SLICED_TELETEXT_SECAM,6,23,1},
                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
                   0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
         },
 #endif
-        {0x030, /* Teletext, PAL, WST System B */
+        [1] = {0x030, /* Teletext, PAL, WST System B */
                 {V4L2_SLICED_TELETEXT_B,6,22,1},
                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
                   0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
         },
 #if 0
-        {0x050, /* Teletext, PAL, WST System C */
+        [2] = {0x050, /* Teletext, PAL, WST System C */
                 {V4L2_SLICED_TELETEXT_PAL_C,6,22,1},
                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
                   0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
         },
-        {0x070, /* Teletext, NTSC, WST System B */
+        [3] = {0x070, /* Teletext, NTSC, WST System B */
                 {V4L2_SLICED_TELETEXT_NTSC_B,10,21,1},
                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
         },
-        {0x090, /* Tetetext, NTSC NABTS System C */
+        [4] = {0x090, /* Tetetext, NTSC NABTS System C */
                 {V4L2_SLICED_TELETEXT_NTSC_C,10,21,1},
                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
         },
-        {0x0b0, /* Teletext, NTSC-J, NABTS System D */
+        [5] = {0x0b0, /* Teletext, NTSC-J, NABTS System D */
                 {V4L2_SLICED_TELETEXT_NTSC_D,10,21,1},
                 { 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
         },
-        {0x0d0, /* Closed Caption, PAL/SECAM */
+        [6] = {0x0d0, /* Closed Caption, PAL/SECAM */
                 {V4L2_SLICED_CAPTION_625,22,22,1},
                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
                   0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
         },
 #endif
-        {0x0f0, /* Closed Caption, NTSC */
+        [7] = {0x0f0, /* Closed Caption, NTSC */
                 {V4L2_SLICED_CAPTION_525,21,21,1},
                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
                   0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
         },
-        {0x110, /* Wide Screen Signal, PAL/SECAM */
+        [8] = {0x110, /* Wide Screen Signal, PAL/SECAM */
                 {V4L2_SLICED_WSS_625,23,23,1},
                 { 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
                   0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
         },
 #if 0
-        {0x130, /* Wide Screen Signal, NTSC C */
+        [9] = {0x130, /* Wide Screen Signal, NTSC C */
                 {V4L2_SLICED_WSS_525,20,20,1},
                 { 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
                   0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
         },
-        {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
+        [10] = {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
                 {V4l2_SLICED_VITC_625,6,22,0},
                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
                   0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
         },
-        {0x170, /* Vertical Interval Timecode (VITC), NTSC */
+        [11] = {0x170, /* Vertical Interval Timecode (VITC), NTSC */
                 {V4l2_SLICED_VITC_525,10,20,0},
                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
                   0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
         },
 #endif
-        {0x190, /* Video Program System (VPS), PAL */
+        [12] = {0x190, /* Video Program System (VPS), PAL */
                 {V4L2_SLICED_VPS,16,16,0},
                 { 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
                   0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
         },
         /* 0x1d0 User programmable */
-
-        /* End of struct */
-        { (u16)-1 }
 };
 
 static int tvp5150_write_inittab(struct v4l2_subdev *sd,
@@ -591,10 +588,10 @@ static int tvp5150_write_inittab(struct v4l2_subdev *sd,
         return 0;
 }
 
-static int tvp5150_vdp_init(struct v4l2_subdev *sd,
-                                const struct i2c_vbi_ram_value *regs)
+static int tvp5150_vdp_init(struct v4l2_subdev *sd)
 {
         unsigned int i;
+        int j;
 
         /* Disable Full Field */
         tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
@@ -604,14 +601,17 @@ static int tvp5150_vdp_init(struct v4l2_subdev *sd,
                 tvp5150_write(sd, i, 0xff);
 
         /* Load Ram Table */
-        while (regs->reg != (u16)-1) {
+        for (j = 0; j < ARRAY_SIZE(vbi_ram_default); j++) {
+                const struct i2c_vbi_ram_value *regs = &vbi_ram_default[j];
+
+                if (!regs->type.vbi_type)
+                        continue;
+
                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
 
                 for (i = 0; i < 16; i++)
                         tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
-
-                regs++;
         }
         return 0;
 }
@@ -620,19 +620,23 @@ static int tvp5150_vdp_init(struct v4l2_subdev *sd,
 static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
                                 struct v4l2_sliced_vbi_cap *cap)
 {
-        const struct i2c_vbi_ram_value *regs = vbi_ram_default;
-        int line;
+        int line, i;
 
         dev_dbg_lvl(sd->dev, 1, debug, "g_sliced_vbi_cap\n");
         memset(cap, 0, sizeof *cap);
 
-        while (regs->reg != (u16)-1 ) {
-                for (line=regs->type.ini_line;line<=regs->type.end_line;line++) {
+        for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
+                const struct i2c_vbi_ram_value *regs = &vbi_ram_default[i];
+
+                if (!regs->type.vbi_type)
+                        continue;
+
+                for (line = regs->type.ini_line;
+                     line <= regs->type.end_line;
+                     line++) {
                         cap->service_lines[0][line] |= regs->type.vbi_type;
                 }
                 cap->service_set |= regs->type.vbi_type;
-
-                regs++;
         }
         return 0;
 }
@@ -651,14 +655,13 @@ static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
  *      MSB = field2
  */
 static int tvp5150_set_vbi(struct v4l2_subdev *sd,
-                        const struct i2c_vbi_ram_value *regs,
                         unsigned int type,u8 flags, int line,
                         const int fields)
 {
         struct tvp5150 *decoder = to_tvp5150(sd);
         v4l2_std_id std = decoder->norm;
         u8 reg;
-        int pos = 0;
+        int i, pos = 0;
 
         if (std == V4L2_STD_ALL) {
                 dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
@@ -671,19 +674,19 @@ static int tvp5150_set_vbi(struct v4l2_subdev *sd,
         if (line < 6 || line > 27)
                 return 0;
 
-        while (regs->reg != (u16)-1) {
+        for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
+                const struct i2c_vbi_ram_value *regs =  &vbi_ram_default[i];
+
+                if (!regs->type.vbi_type)
+                        continue;
+
                 if ((type & regs->type.vbi_type) &&
                     (line >= regs->type.ini_line) &&
                     (line <= regs->type.end_line))
                         break;
-
-                regs++;
                 pos++;
         }
 
-        if (regs->reg == (u16)-1)
-                return 0;
-
         type = pos | (flags & 0xf0);
         reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 
@@ -696,8 +699,7 @@ static int tvp5150_set_vbi(struct v4l2_subdev *sd,
         return type;
 }
 
-static int tvp5150_get_vbi(struct v4l2_subdev *sd,
-                        const struct i2c_vbi_ram_value *regs, int line)
+static int tvp5150_get_vbi(struct v4l2_subdev *sd, int line)
 {
         struct tvp5150 *decoder = to_tvp5150(sd);
         v4l2_std_id std = decoder->norm;
@@ -726,8 +728,8 @@ static int tvp5150_get_vbi(struct v4l2_subdev *sd,
                         return 0;
                 }
                 pos = ret & 0x0f;
-                if (pos < 0x0f)
-                        type |= regs[pos].type.vbi_type;
+                if (pos < ARRAY_SIZE(vbi_ram_default))
+                        type |= vbi_ram_default[pos].type.vbi_type;
         }
 
         return type;
@@ -788,7 +790,7 @@ static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
         tvp5150_write_inittab(sd, tvp5150_init_default);
 
         /* Initializes VDP registers */
-        tvp5150_vdp_init(sd, vbi_ram_default);
+        tvp5150_vdp_init(sd);
 
         /* Selects decoder input */
         tvp5150_selmux(sd);
@@ -1121,8 +1123,8 @@ static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_f
                 for (i = 0; i <= 23; i++) {
                         svbi->service_lines[1][i] = 0;
                         svbi->service_lines[0][i] =
-                                tvp5150_set_vbi(sd, vbi_ram_default,
-                                       svbi->service_lines[0][i], 0xf0, i, 3);
+                                tvp5150_set_vbi(sd, svbi->service_lines[0][i],
+                                                0xf0, i, 3);
                 }
                 /* Enables FIFO */
                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
@@ -1148,7 +1150,7 @@ static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_f
 
         for (i = 0; i <= 23; i++) {
                 svbi->service_lines[0][i] =
-                        tvp5150_get_vbi(sd, vbi_ram_default, i);
+                        tvp5150_get_vbi(sd, i);
                 mask |= svbi->service_lines[0][i];
         }
         svbi->service_set = mask;
diff --git a/drivers/media/pci/ttpci/av7110.c b/drivers/media/pci/ttpci/av7110.c
index dc8e577b2f74..d6816effb878 100644
--- a/drivers/media/pci/ttpci/av7110.c
+++ b/drivers/media/pci/ttpci/av7110.c
@@ -324,14 +324,15 @@ static int DvbDmxFilterCallback(u8 *buffer1, size_t buffer1_len,
                 }
                 return dvbdmxfilter->feed->cb.sec(buffer1, buffer1_len,
                                                   buffer2, buffer2_len,
-                                                  &dvbdmxfilter->filter);
+                                                  &dvbdmxfilter->filter, NULL);
         case DMX_TYPE_TS:
                 if (!(dvbdmxfilter->feed->ts_type & TS_PACKET))
                         return 0;
                 if (dvbdmxfilter->feed->ts_type & TS_PAYLOAD_ONLY)
                         return dvbdmxfilter->feed->cb.ts(buffer1, buffer1_len,
                                                          buffer2, buffer2_len,
-                                                         &dvbdmxfilter->feed->feed.ts);
+                                                         &dvbdmxfilter->feed->feed.ts,
+                                                         NULL);
                 else
                         av7110_p2t_write(buffer1, buffer1_len,
                                          dvbdmxfilter->feed->pid,
diff --git a/drivers/media/pci/ttpci/av7110_av.c b/drivers/media/pci/ttpci/av7110_av.c
index 4daba76ec240..ef1bc17cdc4d 100644
--- a/drivers/media/pci/ttpci/av7110_av.c
+++ b/drivers/media/pci/ttpci/av7110_av.c
@@ -99,7 +99,7 @@ int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
                 buf[4] = buf[5] = 0;
         if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
                 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
-                                         &dvbdmxfeed->feed.ts);
+                                         &dvbdmxfeed->feed.ts, NULL);
         else
                 return dvb_filter_pes2ts(p2t, buf, len, 1);
 }
@@ -109,7 +109,7 @@ static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
 
         dvbdmxfeed->cb.ts(data, 188, NULL, 0,
-                          &dvbdmxfeed->feed.ts);
+                          &dvbdmxfeed->feed.ts, NULL);
         return 0;
 }
 
@@ -814,7 +814,7 @@ static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
                         memcpy(obuf + l, buf + c, TS_SIZE - l);
                         c = length;
                 }
-                feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts);
+                feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, NULL);
                 pes_start = 0;
         }
 }
diff --git a/drivers/media/platform/tegra-cec/tegra_cec.c b/drivers/media/platform/tegra-cec/tegra_cec.c
index 92f93a880015..aba488cd0e64 100644
--- a/drivers/media/platform/tegra-cec/tegra_cec.c
+++ b/drivers/media/platform/tegra-cec/tegra_cec.c
@@ -172,16 +172,13 @@ static irqreturn_t tegra_cec_irq_handler(int irq, void *data)
                 }
         }
 
-        if (status & (TEGRA_CEC_INT_STAT_RX_REGISTER_OVERRUN |
-                      TEGRA_CEC_INT_STAT_RX_BUS_ANOMALY_DETECTED |
-                      TEGRA_CEC_INT_STAT_RX_START_BIT_DETECTED |
-                      TEGRA_CEC_INT_STAT_RX_BUS_ERROR_DETECTED)) {
+        if (status & TEGRA_CEC_INT_STAT_RX_START_BIT_DETECTED) {
                 cec_write(cec, TEGRA_CEC_INT_STAT,
-                          (TEGRA_CEC_INT_STAT_RX_REGISTER_OVERRUN |
-                           TEGRA_CEC_INT_STAT_RX_BUS_ANOMALY_DETECTED |
-                           TEGRA_CEC_INT_STAT_RX_START_BIT_DETECTED |
-                           TEGRA_CEC_INT_STAT_RX_BUS_ERROR_DETECTED));
-        } else if (status & TEGRA_CEC_INT_STAT_RX_REGISTER_FULL) {
+                          TEGRA_CEC_INT_STAT_RX_START_BIT_DETECTED);
+                cec->rx_done = false;
+                cec->rx_buf_cnt = 0;
+        }
+        if (status & TEGRA_CEC_INT_STAT_RX_REGISTER_FULL) {
                 u32 v;
 
                 cec_write(cec, TEGRA_CEC_INT_STAT,
@@ -255,7 +252,7 @@ static int tegra_cec_adap_enable(struct cec_adapter *adap, bool enable)
                   TEGRA_CEC_INT_MASK_TX_BUS_ANOMALY_DETECTED |
                   TEGRA_CEC_INT_MASK_TX_FRAME_TRANSMITTED |
                   TEGRA_CEC_INT_MASK_RX_REGISTER_FULL |
-                  TEGRA_CEC_INT_MASK_RX_REGISTER_OVERRUN);
+                  TEGRA_CEC_INT_MASK_RX_START_BIT_DETECTED);
 
         cec_write(cec, TEGRA_CEC_HW_CONTROL, TEGRA_CEC_HWCTRL_TX_RX_MODE);
         return 0;
diff --git a/drivers/media/usb/au0828/Kconfig b/drivers/media/usb/au0828/Kconfig
index 70521e0b4c53..bfaa806633df 100644
--- a/drivers/media/usb/au0828/Kconfig
+++ b/drivers/media/usb/au0828/Kconfig
@@ -1,7 +1,7 @@
 
 config VIDEO_AU0828
         tristate "Auvitek AU0828 support"
-        depends on I2C && INPUT && DVB_CORE && USB
+        depends on I2C && INPUT && DVB_CORE && USB && VIDEO_V4L2
         select I2C_ALGOBIT
         select VIDEO_TVEEPROM
         select VIDEOBUF2_VMALLOC
diff --git a/drivers/media/usb/ttusb-dec/ttusb_dec.c b/drivers/media/usb/ttusb-dec/ttusb_dec.c
index a8900f5571f7..44ca66cb9b8f 100644
--- a/drivers/media/usb/ttusb-dec/ttusb_dec.c
+++ b/drivers/media/usb/ttusb-dec/ttusb_dec.c
@@ -428,7 +428,7 @@ static int ttusb_dec_audio_pes2ts_cb(void *priv, unsigned char *data)
         struct ttusb_dec *dec = priv;
 
         dec->audio_filter->feed->cb.ts(data, 188, NULL, 0,
-                                       &dec->audio_filter->feed->feed.ts);
+                                       &dec->audio_filter->feed->feed.ts, NULL);
 
         return 0;
 }
@@ -438,7 +438,7 @@ static int ttusb_dec_video_pes2ts_cb(void *priv, unsigned char *data)
         struct ttusb_dec *dec = priv;
 
         dec->video_filter->feed->cb.ts(data, 188, NULL, 0,
-                                       &dec->video_filter->feed->feed.ts);
+                                       &dec->video_filter->feed->feed.ts, NULL);
 
         return 0;
 }
@@ -490,7 +490,7 @@ static void ttusb_dec_process_pva(struct ttusb_dec *dec, u8 *pva, int length)
 
                 if (output_pva) {
                         dec->video_filter->feed->cb.ts(pva, length, NULL, 0,
-                                &dec->video_filter->feed->feed.ts);
+                                &dec->video_filter->feed->feed.ts, NULL);
                         return;
                 }
 
@@ -551,7 +551,7 @@ static void ttusb_dec_process_pva(struct ttusb_dec *dec, u8 *pva, int length)
         case 0x02:              /* MainAudioStream */
                 if (output_pva) {
                         dec->audio_filter->feed->cb.ts(pva, length, NULL, 0,
-                                &dec->audio_filter->feed->feed.ts);
+                                &dec->audio_filter->feed->feed.ts, NULL);
                         return;
                 }
 
@@ -589,7 +589,7 @@ static void ttusb_dec_process_filter(struct ttusb_dec *dec, u8 *packet,
 
         if (filter)
                 filter->feed->cb.sec(&packet[2], length - 2, NULL, 0,
-                                     &filter->filter);
+                                     &filter->filter, NULL);
 }
 
 static void ttusb_dec_process_packet(struct ttusb_dec *dec)
diff --git a/drivers/media/v4l2-core/Kconfig b/drivers/media/v4l2-core/Kconfig
index bf52fbd07aed..8e37e7c5e0f7 100644
--- a/drivers/media/v4l2-core/Kconfig
+++ b/drivers/media/v4l2-core/Kconfig
@@ -7,6 +7,7 @@ config VIDEO_V4L2
         tristate
         depends on (I2C || I2C=n) && VIDEO_DEV
         select RATIONAL
+        select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE
         default (I2C || I2C=n) && VIDEO_DEV
 
 config VIDEO_ADV_DEBUG
diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
index 80de2cb9c476..7df54582e956 100644
--- a/drivers/media/v4l2-core/Makefile
+++ b/drivers/media/v4l2-core/Makefile
@@ -13,7 +13,7 @@ ifeq ($(CONFIG_COMPAT),y)
 endif
 obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
 ifeq ($(CONFIG_TRACEPOINTS),y)
-  videodev-objs += vb2-trace.o v4l2-trace.o
+  videodev-objs += v4l2-trace.o
 endif
 videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o
 
@@ -35,4 +35,3 @@ obj-$(CONFIG_VIDEOBUF_DVB) += videobuf-dvb.o
 
 ccflags-y += -I$(srctree)/drivers/media/dvb-frontends
 ccflags-y += -I$(srctree)/drivers/media/tuners
-
diff --git a/drivers/memory/brcmstb_dpfe.c b/drivers/memory/brcmstb_dpfe.c
index 0a7bdbed3a6f..e9c1485c32b9 100644
--- a/drivers/memory/brcmstb_dpfe.c
+++ b/drivers/memory/brcmstb_dpfe.c
@@ -45,8 +45,16 @@
 #define REG_TO_DCPU_MBOX        0x10
 #define REG_TO_HOST_MBOX        0x14
 
+/* Macros to process offsets returned by the DCPU */
+#define DRAM_MSG_ADDR_OFFSET    0x0
+#define DRAM_MSG_TYPE_OFFSET    0x1c
+#define DRAM_MSG_ADDR_MASK      ((1UL << DRAM_MSG_TYPE_OFFSET) - 1)
+#define DRAM_MSG_TYPE_MASK      ((1UL << \
+                                 (BITS_PER_LONG - DRAM_MSG_TYPE_OFFSET)) - 1)
+
 /* Message RAM */
-#define DCPU_MSG_RAM(x)         (0x100 + (x) * sizeof(u32))
+#define DCPU_MSG_RAM_START      0x100
+#define DCPU_MSG_RAM(x)         (DCPU_MSG_RAM_START + (x) * sizeof(u32))
 
 /* DRAM Info Offsets & Masks */
 #define DRAM_INFO_INTERVAL      0x0
@@ -255,6 +263,40 @@ static unsigned int get_msg_chksum(const u32 msg[])
         return sum;
 }
 
+static void __iomem *get_msg_ptr(struct private_data *priv, u32 response,
+                                 char *buf, ssize_t *size)
+{
+        unsigned int msg_type;
+        unsigned int offset;
+        void __iomem *ptr = NULL;
+
+        msg_type = (response >> DRAM_MSG_TYPE_OFFSET) & DRAM_MSG_TYPE_MASK;
+        offset = (response >> DRAM_MSG_ADDR_OFFSET) & DRAM_MSG_ADDR_MASK;
+
+        /*
+         * msg_type == 1: the offset is relative to the message RAM
+         * msg_type == 0: the offset is relative to the data RAM (this is the
+         *                previous way of passing data)
+         * msg_type is anything else: there's critical hardware problem
+         */
+        switch (msg_type) {
+        case 1:
+                ptr = priv->regs + DCPU_MSG_RAM_START + offset;
+                break;
+        case 0:
+                ptr = priv->dmem + offset;
+                break;
+        default:
+                dev_emerg(priv->dev, "invalid message reply from DCPU: %#x\n",
+                        response);
+                if (buf && size)
+                        *size = sprintf(buf,
+                                "FATAL: communication error with DCPU\n");
+        }
+
+        return ptr;
+}
+
 static int __send_command(struct private_data *priv, unsigned int cmd,
                           u32 result[])
 {
@@ -507,7 +549,7 @@ static ssize_t show_info(struct device *dev, struct device_attribute *devattr,
 {
         u32 response[MSG_FIELD_MAX];
         unsigned int info;
-        int ret;
+        ssize_t ret;
 
         ret = generic_show(DPFE_CMD_GET_INFO, response, dev, buf);
         if (ret)
@@ -528,18 +570,19 @@ static ssize_t show_refresh(struct device *dev,
         u32 response[MSG_FIELD_MAX];
         void __iomem *info;
         struct private_data *priv;
-        unsigned int offset;
         u8 refresh, sr_abort, ppre, thermal_offs, tuf;
         u32 mr4;
-        int ret;
+        ssize_t ret;
 
         ret = generic_show(DPFE_CMD_GET_REFRESH, response, dev, buf);
         if (ret)
                 return ret;
 
         priv = dev_get_drvdata(dev);
-        offset = response[MSG_ARG0];
-        info = priv->dmem + offset;
+
+        info = get_msg_ptr(priv, response[MSG_ARG0], buf, &ret);
+        if (!info)
+                return ret;
 
         mr4 = readl_relaxed(info + DRAM_INFO_MR4) & DRAM_INFO_MR4_MASK;
 
@@ -561,7 +604,6 @@ static ssize_t store_refresh(struct device *dev, struct device_attribute *attr,
         u32 response[MSG_FIELD_MAX];
         struct private_data *priv;
         void __iomem *info;
-        unsigned int offset;
         unsigned long val;
         int ret;
 
@@ -574,8 +616,10 @@ static ssize_t store_refresh(struct device *dev, struct device_attribute *attr,
         if (ret)
                 return ret;
 
-        offset = response[MSG_ARG0];
-        info = priv->dmem + offset;
+        info = get_msg_ptr(priv, response[MSG_ARG0], NULL, NULL);
+        if (!info)
+                return -EIO;
+
         writel_relaxed(val, info + DRAM_INFO_INTERVAL);
 
         return count;
@@ -587,23 +631,25 @@ static ssize_t show_vendor(struct device *dev, struct device_attribute *devattr,
         u32 response[MSG_FIELD_MAX];
         struct private_data *priv;
         void __iomem *info;
-        unsigned int offset;
-        int ret;
+        ssize_t ret;
 
         ret = generic_show(DPFE_CMD_GET_VENDOR, response, dev, buf);
         if (ret)
                 return ret;
 
-        offset = response[MSG_ARG0];
         priv = dev_get_drvdata(dev);
-        info = priv->dmem + offset;
+
+        info = get_msg_ptr(priv, response[MSG_ARG0], buf, &ret);
+        if (!info)
+                return ret;
 
         return sprintf(buf, "%#x %#x %#x %#x %#x\n",
                        readl_relaxed(info + DRAM_VENDOR_MR5) & DRAM_VENDOR_MASK,
                        readl_relaxed(info + DRAM_VENDOR_MR6) & DRAM_VENDOR_MASK,
                        readl_relaxed(info + DRAM_VENDOR_MR7) & DRAM_VENDOR_MASK,
                        readl_relaxed(info + DRAM_VENDOR_MR8) & DRAM_VENDOR_MASK,
-                       readl_relaxed(info + DRAM_VENDOR_ERROR));
+                       readl_relaxed(info + DRAM_VENDOR_ERROR) &
+                                     DRAM_VENDOR_MASK);
 }
 
 static int brcmstb_dpfe_resume(struct platform_device *pdev)
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index 8d12017b9893..4470630dd545 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -2687,6 +2687,8 @@ mptctl_hp_targetinfo(unsigned long arg)
                                 __FILE__, __LINE__, iocnum);
                 return -ENODEV;
         }
+        if (karg.hdr.id >= MPT_MAX_FC_DEVICES)
+                return -EINVAL;
         dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_hp_targetinfo called.\n",
             ioc->name));
 
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 3e5eabdae8d9..772d02922529 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -548,12 +548,6 @@ int mei_cldev_disable(struct mei_cl_device *cldev)
                 goto out;
         }
 
-        if (bus->dev_state == MEI_DEV_POWER_DOWN) {
-                dev_dbg(bus->dev, "Device is powering down, don't bother with disconnection\n");
-                err = 0;
-                goto out;
-        }
-
         err = mei_cl_disconnect(cl);
         if (err < 0)
                 dev_err(bus->dev, "Could not disconnect from the ME client\n");
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index be64969d986a..7e60c1817c31 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -945,6 +945,12 @@ int mei_cl_disconnect(struct mei_cl *cl)
                 return 0;
         }
 
+        if (dev->dev_state == MEI_DEV_POWER_DOWN) {
+                cl_dbg(dev, cl, "Device is powering down, don't bother with disconnection\n");
+                mei_cl_set_disconnected(cl);
+                return 0;
+        }
+
         rets = pm_runtime_get(dev->dev);
         if (rets < 0 && rets != -EINPROGRESS) {
                 pm_runtime_put_noidle(dev->dev);
diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h
index 0ccccbaf530d..e4b10b2d1a08 100644
--- a/drivers/misc/mei/hw-me-regs.h
+++ b/drivers/misc/mei/hw-me-regs.h
@@ -132,6 +132,11 @@
 #define MEI_DEV_ID_KBP        0xA2BA  /* Kaby Point */
 #define MEI_DEV_ID_KBP_2      0xA2BB  /* Kaby Point 2 */
 
+#define MEI_DEV_ID_CNP_LP     0x9DE0  /* Cannon Point LP */
+#define MEI_DEV_ID_CNP_LP_4   0x9DE4  /* Cannon Point LP 4 (iTouch) */
+#define MEI_DEV_ID_CNP_H      0xA360  /* Cannon Point H */
+#define MEI_DEV_ID_CNP_H_4    0xA364  /* Cannon Point H 4 (iTouch) */
+
 /*
  * MEI HW Section
  */
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 4a0ccda4d04b..ea4e152270a3 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -98,6 +98,11 @@ static const struct pci_device_id mei_me_pci_tbl[] = {
         {MEI_PCI_DEVICE(MEI_DEV_ID_KBP, MEI_ME_PCH8_CFG)},
         {MEI_PCI_DEVICE(MEI_DEV_ID_KBP_2, MEI_ME_PCH8_CFG)},
 
+        {MEI_PCI_DEVICE(MEI_DEV_ID_CNP_LP, MEI_ME_PCH8_CFG)},
+        {MEI_PCI_DEVICE(MEI_DEV_ID_CNP_LP_4, MEI_ME_PCH8_CFG)},
+        {MEI_PCI_DEVICE(MEI_DEV_ID_CNP_H, MEI_ME_PCH8_CFG)},
+        {MEI_PCI_DEVICE(MEI_DEV_ID_CNP_H_4, MEI_ME_PCH8_CFG)},
+
         /* required last entry */
         {0, }
 };
diff --git a/drivers/misc/ocxl/file.c b/drivers/misc/ocxl/file.c
index d9aa407db06a..038509e5d031 100644
--- a/drivers/misc/ocxl/file.c
+++ b/drivers/misc/ocxl/file.c
@@ -102,10 +102,32 @@ static long afu_ioctl_attach(struct ocxl_context *ctx,
         return rc;
 }
 
+static long afu_ioctl_get_metadata(struct ocxl_context *ctx,
+                struct ocxl_ioctl_metadata __user *uarg)
+{
+        struct ocxl_ioctl_metadata arg;
+
+        memset(&arg, 0, sizeof(arg));
+
+        arg.version = 0;
+
+        arg.afu_version_major = ctx->afu->config.version_major;
+        arg.afu_version_minor = ctx->afu->config.version_minor;
+        arg.pasid = ctx->pasid;
+        arg.pp_mmio_size = ctx->afu->config.pp_mmio_stride;
+        arg.global_mmio_size = ctx->afu->config.global_mmio_size;
+
+        if (copy_to_user(uarg, &arg, sizeof(arg)))
+                return -EFAULT;
+
+        return 0;
+}
+
 #define CMD_STR(x) (x == OCXL_IOCTL_ATTACH ? "ATTACH" :                 \
                         x == OCXL_IOCTL_IRQ_ALLOC ? "IRQ_ALLOC" :       \
                         x == OCXL_IOCTL_IRQ_FREE ? "IRQ_FREE" :         \
                         x == OCXL_IOCTL_IRQ_SET_FD ? "IRQ_SET_FD" :     \
+                        x == OCXL_IOCTL_GET_METADATA ? "GET_METADATA" : \
                         "UNKNOWN")
 
 static long afu_ioctl(struct file *file, unsigned int cmd,
@@ -133,8 +155,10 @@ static long afu_ioctl(struct file *file, unsigned int cmd,
                 if (!rc) {
                         rc = copy_to_user((u64 __user *) args, &irq_offset,
                                         sizeof(irq_offset));
-                        if (rc)
+                        if (rc) {
                                 ocxl_afu_irq_free(ctx, irq_offset);
+                                return -EFAULT;
+                        }
                 }
                 break;
 
@@ -157,6 +181,11 @@ static long afu_ioctl(struct file *file, unsigned int cmd,
                                         irq_fd.eventfd);
                 break;
 
+        case OCXL_IOCTL_GET_METADATA:
+                rc = afu_ioctl_get_metadata(ctx,
+                                (struct ocxl_ioctl_metadata __user *) args);
+                break;
+
         default:
                 rc = -EINVAL;
         }
@@ -277,7 +306,7 @@ static ssize_t afu_read(struct file *file, char __user *buf, size_t count,
         struct ocxl_context *ctx = file->private_data;
         struct ocxl_kernel_event_header header;
         ssize_t rc;
-        size_t used = 0;
+        ssize_t used = 0;
         DEFINE_WAIT(event_wait);
 
         memset(&header, 0, sizeof(header));
@@ -329,7 +358,7 @@ static ssize_t afu_read(struct file *file, char __user *buf, size_t count,
 
         used += sizeof(header);
 
-        rc = (ssize_t) used;
+        rc = used;
         return rc;
 }
 
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 20135a5de748..2cfb963d9f37 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -72,6 +72,7 @@ MODULE_ALIAS("mmc:block");
 #define MMC_BLK_TIMEOUT_MS  (10 * 1000)
 #define MMC_SANITIZE_REQ_TIMEOUT 240000
 #define MMC_EXTRACT_INDEX_FROM_ARG(x) ((x & 0x00FF0000) >> 16)
+#define MMC_EXTRACT_VALUE_FROM_ARG(x) ((x & 0x0000FF00) >> 8)
 
 #define mmc_req_rel_wr(req)     ((req->cmd_flags & REQ_FUA) && \
                                   (rq_data_dir(req) == WRITE))
@@ -587,6 +588,24 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
         }
 
         /*
+         * Make sure the cache of the PARTITION_CONFIG register and
+         * PARTITION_ACCESS bits is updated in case the ioctl ext_csd write
+         * changed it successfully.
+         */
+        if ((MMC_EXTRACT_INDEX_FROM_ARG(cmd.arg) == EXT_CSD_PART_CONFIG) &&
+            (cmd.opcode == MMC_SWITCH)) {
+                struct mmc_blk_data *main_md = dev_get_drvdata(&card->dev);
+                u8 value = MMC_EXTRACT_VALUE_FROM_ARG(cmd.arg);
+
+                /*
+                 * Update cache so the next mmc_blk_part_switch call operates
+                 * on up-to-date data.
+                 */
+                card->ext_csd.part_config = value;
+                main_md->part_curr = value & EXT_CSD_PART_CONFIG_ACC_MASK;
+        }
+
+        /*
          * According to the SD specs, some commands require a delay after
          * issuing the command.
          */
diff --git a/drivers/mmc/core/card.h b/drivers/mmc/core/card.h
index 79a5b985ccf5..9c821eedd156 100644
--- a/drivers/mmc/core/card.h
+++ b/drivers/mmc/core/card.h
@@ -82,6 +82,7 @@ struct mmc_fixup {
 #define CID_MANFID_APACER       0x27
 #define CID_MANFID_KINGSTON     0x70
 #define CID_MANFID_HYNIX        0x90
+#define CID_MANFID_NUMONYX      0xFE
 
 #define END_FIXUP { NULL }
 
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 908e4db03535..42d6aa89a48a 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -848,7 +848,6 @@ int mmc_interrupt_hpi(struct mmc_card *card)
                 return 1;
         }
 
-        mmc_claim_host(card->host);
         err = mmc_send_status(card, &status);
         if (err) {
                 pr_err("%s: Get card status fail\n", mmc_hostname(card->host));
@@ -890,7 +889,6 @@ int mmc_interrupt_hpi(struct mmc_card *card)
         } while (!err);
 
 out:
-        mmc_release_host(card->host);
         return err;
 }
 
@@ -932,9 +930,7 @@ static int mmc_read_bkops_status(struct mmc_card *card)
         int err;
         u8 *ext_csd;
 
-        mmc_claim_host(card->host);
         err = mmc_get_ext_csd(card, &ext_csd);
-        mmc_release_host(card->host);
         if (err)
                 return err;
 
diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h
index 75d317623852..5153577754f0 100644
--- a/drivers/mmc/core/quirks.h
+++ b/drivers/mmc/core/quirks.h
@@ -109,6 +109,12 @@ static const struct mmc_fixup mmc_ext_csd_fixups[] = {
          */
         MMC_FIXUP_EXT_CSD_REV(CID_NAME_ANY, CID_MANFID_HYNIX,
                               0x014a, add_quirk, MMC_QUIRK_BROKEN_HPI, 5),
+        /*
+         * Certain Micron (Numonyx) eMMC 4.5 cards might get broken when HPI
+         * feature is used so disable the HPI feature for such buggy cards.
+         */
+        MMC_FIXUP_EXT_CSD_REV(CID_NAME_ANY, CID_MANFID_NUMONYX,
+                              0x014e, add_quirk, MMC_QUIRK_BROKEN_HPI, 6),
 
         END_FIXUP
 };
diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
index 229dc18f0581..768972af8b85 100644
--- a/drivers/mmc/host/bcm2835.c
+++ b/drivers/mmc/host/bcm2835.c
@@ -1265,7 +1265,8 @@ static int bcm2835_add_host(struct bcm2835_host *host)
         char pio_limit_string[20];
         int ret;
 
-        mmc->f_max = host->max_clk;
+        if (!mmc->f_max || mmc->f_max > host->max_clk)
+                mmc->f_max = host->max_clk;
         mmc->f_min = host->max_clk / SDCDIV_MAX_CDIV;
 
         mmc->max_busy_timeout = ~0 / (mmc->f_max / 1000);
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 35026795be28..a84aa3f1ae85 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -165,9 +165,15 @@ static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing)
 static int dw_mci_exynos_runtime_resume(struct device *dev)
 {
         struct dw_mci *host = dev_get_drvdata(dev);
+        int ret;
+
+        ret = dw_mci_runtime_resume(dev);
+        if (ret)
+                return ret;
 
         dw_mci_exynos_config_smu(host);
-        return dw_mci_runtime_resume(dev);
+
+        return ret;
 }
 
 /**
@@ -487,6 +493,7 @@ static unsigned long exynos_dwmmc_caps[4] = {
 
 static const struct dw_mci_drv_data exynos_drv_data = {
         .caps                   = exynos_dwmmc_caps,
+        .num_caps               = ARRAY_SIZE(exynos_dwmmc_caps),
         .init                   = dw_mci_exynos_priv_init,
         .set_ios                = dw_mci_exynos_set_ios,
         .parse_dt               = dw_mci_exynos_parse_dt,
diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
index 73fd75c3c824..89cdb3d533bb 100644
--- a/drivers/mmc/host/dw_mmc-k3.c
+++ b/drivers/mmc/host/dw_mmc-k3.c
@@ -135,6 +135,9 @@ static int dw_mci_hi6220_parse_dt(struct dw_mci *host)
         if (priv->ctrl_id < 0)
                 priv->ctrl_id = 0;
 
+        if (priv->ctrl_id >= TIMING_MODE)
+                return -EINVAL;
+
         host->priv = priv;
         return 0;
 }
@@ -207,6 +210,7 @@ static int dw_mci_hi6220_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
 
 static const struct dw_mci_drv_data hi6220_data = {
         .caps                   = dw_mci_hi6220_caps,
+        .num_caps               = ARRAY_SIZE(dw_mci_hi6220_caps),
         .switch_voltage         = dw_mci_hi6220_switch_voltage,
         .set_ios                = dw_mci_hi6220_set_ios,
         .parse_dt               = dw_mci_hi6220_parse_dt,
diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c
index a3f1c2b30145..339295212935 100644
--- a/drivers/mmc/host/dw_mmc-rockchip.c
+++ b/drivers/mmc/host/dw_mmc-rockchip.c
@@ -319,6 +319,7 @@ static const struct dw_mci_drv_data rk2928_drv_data = {
 
 static const struct dw_mci_drv_data rk3288_drv_data = {
         .caps                   = dw_mci_rk3288_dwmmc_caps,
+        .num_caps               = ARRAY_SIZE(dw_mci_rk3288_dwmmc_caps),
         .set_ios                = dw_mci_rk3288_set_ios,
         .execute_tuning         = dw_mci_rk3288_execute_tuning,
         .parse_dt               = dw_mci_rk3288_parse_dt,
diff --git a/drivers/mmc/host/dw_mmc-zx.c b/drivers/mmc/host/dw_mmc-zx.c
index d38e94ae2b85..c06b5393312f 100644
--- a/drivers/mmc/host/dw_mmc-zx.c
+++ b/drivers/mmc/host/dw_mmc-zx.c
@@ -195,6 +195,7 @@ static unsigned long zx_dwmmc_caps[3] = {
 
 static const struct dw_mci_drv_data zx_drv_data = {
         .caps                   = zx_dwmmc_caps,
+        .num_caps               = ARRAY_SIZE(zx_dwmmc_caps),
         .execute_tuning         = dw_mci_zx_execute_tuning,
         .prepare_hs400_tuning   = dw_mci_zx_prepare_hs400_tuning,
         .parse_dt               = dw_mci_zx_parse_dt,
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 0aa39975f33b..06d47414d0c1 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -165,6 +165,8 @@ static int dw_mci_regs_show(struct seq_file *s, void *v)
 {
         struct dw_mci *host = s->private;
 
+        pm_runtime_get_sync(host->dev);
+
         seq_printf(s, "STATUS:\t0x%08x\n", mci_readl(host, STATUS));
         seq_printf(s, "RINTSTS:\t0x%08x\n", mci_readl(host, RINTSTS));
         seq_printf(s, "CMD:\t0x%08x\n", mci_readl(host, CMD));
@@ -172,6 +174,8 @@ static int dw_mci_regs_show(struct seq_file *s, void *v)
         seq_printf(s, "INTMASK:\t0x%08x\n", mci_readl(host, INTMASK));
         seq_printf(s, "CLKENA:\t0x%08x\n", mci_readl(host, CLKENA));
 
+        pm_runtime_put_autosuspend(host->dev);
+
         return 0;
 }
 
@@ -409,7 +413,9 @@ static inline void dw_mci_set_cto(struct dw_mci *host)
         cto_div = (mci_readl(host, CLKDIV) & 0xff) * 2;
         if (cto_div == 0)
                 cto_div = 1;
-        cto_ms = DIV_ROUND_UP(MSEC_PER_SEC * cto_clks * cto_div, host->bus_hz);
+
+        cto_ms = DIV_ROUND_UP_ULL((u64)MSEC_PER_SEC * cto_clks * cto_div,
+                                  host->bus_hz);
 
         /* add a bit spare time */
         cto_ms += 10;
@@ -558,6 +564,7 @@ static int dw_mci_idmac_init(struct dw_mci *host)
                                         (sizeof(struct idmac_desc_64addr) *
                                                         (i + 1))) >> 32;
                         /* Initialize reserved and buffer size fields to "0" */
+                        p->des0 = 0;
                         p->des1 = 0;
                         p->des2 = 0;
                         p->des3 = 0;
@@ -580,6 +587,7 @@ static int dw_mci_idmac_init(struct dw_mci *host)
                      i++, p++) {
                         p->des3 = cpu_to_le32(host->sg_dma +
                                         (sizeof(struct idmac_desc) * (i + 1)));
+                        p->des0 = 0;
                         p->des1 = 0;
                 }
 
@@ -1795,8 +1803,8 @@ static bool dw_mci_reset(struct dw_mci *host)
         }
 
         if (host->use_dma == TRANS_MODE_IDMAC)
-                /* It is also recommended that we reset and reprogram idmac */
-                dw_mci_idmac_reset(host);
+                /* It is also required that we reinit idmac */
+                dw_mci_idmac_init(host);
 
         ret = true;
 
@@ -1944,8 +1952,9 @@ static void dw_mci_set_drto(struct dw_mci *host)
         drto_div = (mci_readl(host, CLKDIV) & 0xff) * 2;
         if (drto_div == 0)
                 drto_div = 1;
-        drto_ms = DIV_ROUND_UP(MSEC_PER_SEC * drto_clks * drto_div,
-                               host->bus_hz);
+
+        drto_ms = DIV_ROUND_UP_ULL((u64)MSEC_PER_SEC * drto_clks * drto_div,
+                                   host->bus_hz);
 
         /* add a bit spare time */
         drto_ms += 10;
@@ -2778,12 +2787,57 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
         return IRQ_HANDLED;
 }
 
+static int dw_mci_init_slot_caps(struct dw_mci_slot *slot)
+{
+        struct dw_mci *host = slot->host;
+        const struct dw_mci_drv_data *drv_data = host->drv_data;
+        struct mmc_host *mmc = slot->mmc;
+        int ctrl_id;
+
+        if (host->pdata->caps)
+                mmc->caps = host->pdata->caps;
+
+        /*
+         * Support MMC_CAP_ERASE by default.
+         * It needs to use trim/discard/erase commands.
+         */
+        mmc->caps |= MMC_CAP_ERASE;
+
+        if (host->pdata->pm_caps)
+                mmc->pm_caps = host->pdata->pm_caps;
+
+        if (host->dev->of_node) {
+                ctrl_id = of_alias_get_id(host->dev->of_node, "mshc");
+                if (ctrl_id < 0)
+                        ctrl_id = 0;
+        } else {
+                ctrl_id = to_platform_device(host->dev)->id;
+        }
+
+        if (drv_data && drv_data->caps) {
+                if (ctrl_id >= drv_data->num_caps) {
+                        dev_err(host->dev, "invalid controller id %d\n",
+                                ctrl_id);
+                        return -EINVAL;
+                }
+                mmc->caps |= drv_data->caps[ctrl_id];
+        }
+
+        if (host->pdata->caps2)
+                mmc->caps2 = host->pdata->caps2;
+
+        /* Process SDIO IRQs through the sdio_irq_work. */
+        if (mmc->caps & MMC_CAP_SDIO_IRQ)
+                mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
+
+        return 0;
+}
+
 static int dw_mci_init_slot(struct dw_mci *host)
 {
         struct mmc_host *mmc;
         struct dw_mci_slot *slot;
-        const struct dw_mci_drv_data *drv_data = host->drv_data;
-        int ctrl_id, ret;
+        int ret;
         u32 freq[2];
 
         mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), host->dev);
@@ -2817,38 +2871,13 @@ static int dw_mci_init_slot(struct dw_mci *host)
         if (!mmc->ocr_avail)
                 mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
 
-        if (host->pdata->caps)
-                mmc->caps = host->pdata->caps;
-
-        /*
-         * Support MMC_CAP_ERASE by default.
-         * It needs to use trim/discard/erase commands.
-         */
-        mmc->caps |= MMC_CAP_ERASE;
-
-        if (host->pdata->pm_caps)
-                mmc->pm_caps = host->pdata->pm_caps;
-
-        if (host->dev->of_node) {
-                ctrl_id = of_alias_get_id(host->dev->of_node, "mshc");
-                if (ctrl_id < 0)
-                        ctrl_id = 0;
-        } else {
-                ctrl_id = to_platform_device(host->dev)->id;
-        }
-        if (drv_data && drv_data->caps)
-                mmc->caps |= drv_data->caps[ctrl_id];
-
-        if (host->pdata->caps2)
-                mmc->caps2 = host->pdata->caps2;
-
         ret = mmc_of_parse(mmc);
         if (ret)
                 goto err_host_allocated;
 
-        /* Process SDIO IRQs through the sdio_irq_work. */
-        if (mmc->caps & MMC_CAP_SDIO_IRQ)
-                mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
+        ret = dw_mci_init_slot_caps(slot);
+        if (ret)
+                goto err_host_allocated;
 
         /* Useful defaults if platform data is unset. */
         if (host->use_dma == TRANS_MODE_IDMAC) {
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index e3124f06a47e..1424bd490dd1 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -543,6 +543,7 @@ struct dw_mci_slot {
 /**
  * dw_mci driver data - dw-mshc implementation specific driver data.
  * @caps: mmc subsystem specified capabilities of the controller(s).
+ * @num_caps: number of capabilities specified by @caps.
  * @init: early implementation specific initialization.
  * @set_ios: handle bus specific extensions.
  * @parse_dt: parse implementation specific device tree properties.
@@ -554,6 +555,7 @@ struct dw_mci_slot {
  */
 struct dw_mci_drv_data {
         unsigned long   *caps;
+        u32             num_caps;
         int             (*init)(struct dw_mci *host);
         void            (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
         int             (*parse_dt)(struct dw_mci *host);
diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index 22438ebfe4e6..4f972b879fe6 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -717,22 +717,6 @@ static int meson_mmc_clk_phase_tuning(struct mmc_host *mmc, u32 opcode,
 static int meson_mmc_execute_tuning(struct mmc_host *mmc, u32 opcode)
 {
         struct meson_host *host = mmc_priv(mmc);
-        int ret;
-
-        /*
-         * If this is the initial tuning, try to get a sane Rx starting
-         * phase before doing the actual tuning.
-         */
-        if (!mmc->doing_retune) {
-                ret = meson_mmc_clk_phase_tuning(mmc, opcode, host->rx_clk);
-
-                if (ret)
-                        return ret;
-        }
-
-        ret = meson_mmc_clk_phase_tuning(mmc, opcode, host->tx_clk);
-        if (ret)
-                return ret;
 
         return meson_mmc_clk_phase_tuning(mmc, opcode, host->rx_clk);
 }
@@ -763,9 +747,8 @@ static void meson_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                 if (!IS_ERR(mmc->supply.vmmc))
                         mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);
 
-                /* Reset phases */
+                /* Reset rx phase */
                 clk_set_phase(host->rx_clk, 0);
-                clk_set_phase(host->tx_clk, 270);
 
                 break;
 
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 4065da58789d..32321bd596d8 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -680,7 +680,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
         host->hw_name   = "ACPI";
         host->ops       = &sdhci_acpi_ops_dflt;
         host->irq       = platform_get_irq(pdev, 0);
-        if (host->irq <= 0) {
+        if (host->irq < 0) {
                 err = -EINVAL;
                 goto err_free;
         }
diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index 6d1a983e6227..82c4f05f91d8 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -654,9 +654,36 @@ static void byt_read_dsm(struct sdhci_pci_slot *slot)
         slot->chip->rpm_retune = intel_host->d3_retune;
 }
 
-static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
+static int intel_execute_tuning(struct mmc_host *mmc, u32 opcode)
+{
+        int err = sdhci_execute_tuning(mmc, opcode);
+        struct sdhci_host *host = mmc_priv(mmc);
+
+        if (err)
+                return err;
+
+        /*
+         * Tuning can leave the IP in an active state (Buffer Read Enable bit
+         * set) which prevents the entry to low power states (i.e. S0i3). Data
+         * reset will clear it.
+         */
+        sdhci_reset(host, SDHCI_RESET_DATA);
+
+        return 0;
+}
+
+static void byt_probe_slot(struct sdhci_pci_slot *slot)
 {
+        struct mmc_host_ops *ops = &slot->host->mmc_host_ops;
+
         byt_read_dsm(slot);
+
+        ops->execute_tuning = intel_execute_tuning;
+}
+
+static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
+{
+        byt_probe_slot(slot);
         slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
                                  MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
                                  MMC_CAP_CMD_DURING_TFR |
@@ -779,7 +806,7 @@ static int ni_byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
 {
         int err;
 
-        byt_read_dsm(slot);
+        byt_probe_slot(slot);
 
         err = ni_set_max_freq(slot);
         if (err)
@@ -792,7 +819,7 @@ static int ni_byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
 
 static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
 {
-        byt_read_dsm(slot);
+        byt_probe_slot(slot);
         slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE |
                                  MMC_CAP_WAIT_WHILE_BUSY;
         return 0;
@@ -800,7 +827,7 @@ static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
 
 static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
 {
-        byt_read_dsm(slot);
+        byt_probe_slot(slot);
         slot->host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY |
                                  MMC_CAP_AGGRESSIVE_PM | MMC_CAP_CD_WAKE;
         slot->cd_idx = 0;
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index de8c902059b8..7d80a8bb96fe 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -479,7 +479,7 @@ static int shrink_ecclayout(struct mtd_info *mtd,
         for (i = 0; i < MTD_MAX_ECCPOS_ENTRIES;) {
                 u32 eccpos;
 
-                ret = mtd_ooblayout_ecc(mtd, section, &oobregion);
+                ret = mtd_ooblayout_ecc(mtd, section++, &oobregion);
                 if (ret < 0) {
                         if (ret != -ERANGE)
                                 return ret;
@@ -526,7 +526,7 @@ static int get_oobinfo(struct mtd_info *mtd, struct nand_oobinfo *to)
         for (i = 0; i < ARRAY_SIZE(to->eccpos);) {
                 u32 eccpos;
 
-                ret = mtd_ooblayout_ecc(mtd, section, &oobregion);
+                ret = mtd_ooblayout_ecc(mtd, section++, &oobregion);
                 if (ret < 0) {
                         if (ret != -ERANGE)
                                 return ret;
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index e6b8c59f2c0d..736ac887303c 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -328,7 +328,7 @@ config MTD_NAND_MARVELL
         tristate "NAND controller support on Marvell boards"
         depends on PXA3xx || ARCH_MMP || PLAT_ORION || ARCH_MVEBU || \
                    COMPILE_TEST
-        depends on HAS_IOMEM
+        depends on HAS_IOMEM && HAS_DMA
         help
           This enables the NAND flash controller driver for Marvell boards,
           including:
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 4872a7ba6503..5a9c2f0020c2 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -173,14 +173,9 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
 
 /* returns nonzero if entire page is blank */
 static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl,
-                          u32 *eccstat, unsigned int bufnum)
+                          u32 eccstat, unsigned int bufnum)
 {
-        u32 reg = eccstat[bufnum / 4];
-        int errors;
-
-        errors = (reg >> ((3 - bufnum % 4) * 8)) & 15;
-
-        return errors;
+        return  (eccstat >> ((3 - bufnum % 4) * 8)) & 15;
 }
 
 /*
@@ -193,7 +188,7 @@ static void fsl_ifc_run_command(struct mtd_info *mtd)
         struct fsl_ifc_ctrl *ctrl = priv->ctrl;
         struct fsl_ifc_nand_ctrl *nctrl = ifc_nand_ctrl;
         struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs;
-        u32 eccstat[4];
+        u32 eccstat;
         int i;
 
         /* set the chip select for NAND Transaction */
@@ -228,19 +223,17 @@ static void fsl_ifc_run_command(struct mtd_info *mtd)
         if (nctrl->eccread) {
                 int errors;
                 int bufnum = nctrl->page & priv->bufnum_mask;
-                int sector = bufnum * chip->ecc.steps;
-                int sector_end = sector + chip->ecc.steps - 1;
+                int sector_start = bufnum * chip->ecc.steps;
+                int sector_end = sector_start + chip->ecc.steps - 1;
                 __be32 *eccstat_regs;
 
-                if (ctrl->version >= FSL_IFC_VERSION_2_0_0)
-                        eccstat_regs = ifc->ifc_nand.v2_nand_eccstat;
-                else
-                        eccstat_regs = ifc->ifc_nand.v1_nand_eccstat;
+                eccstat_regs = ifc->ifc_nand.nand_eccstat;
+                eccstat = ifc_in32(&eccstat_regs[sector_start / 4]);
 
-                for (i = sector / 4; i <= sector_end / 4; i++)
-                        eccstat[i] = ifc_in32(&eccstat_regs[i]);
+                for (i = sector_start; i <= sector_end; i++) {
+                        if (i != sector_start && !(i % 4))
+                                eccstat = ifc_in32(&eccstat_regs[i / 4]);
 
-                for (i = sector; i <= sector_end; i++) {
                         errors = check_read_ecc(mtd, ctrl, eccstat, i);
 
                         if (errors == 15) {
@@ -626,6 +619,7 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip)
         struct fsl_ifc_ctrl *ctrl = priv->ctrl;
         struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs;
         u32 nand_fsr;
+        int status;
 
         /* Use READ_STATUS command, but wait for the device to be ready */
         ifc_out32((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
@@ -640,12 +634,12 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip)
         fsl_ifc_run_command(mtd);
 
         nand_fsr = ifc_in32(&ifc->ifc_nand.nand_fsr);
-
+        status = nand_fsr >> 24;
         /*
          * The chip always seems to report that it is
          * write-protected, even when it is not.
          */
-        return nand_fsr | NAND_STATUS_WP;
+        return status | NAND_STATUS_WP;
 }
 
 /*
diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c
index 80d31a58e558..f367144f3c6f 100644
--- a/drivers/mtd/nand/vf610_nfc.c
+++ b/drivers/mtd/nand/vf610_nfc.c
@@ -752,10 +752,8 @@ static int vf610_nfc_probe(struct platform_device *pdev)
                 if (mtd->oobsize > 64)
                         mtd->oobsize = 64;
 
-                /*
-                 * mtd->ecclayout is not specified here because we're using the
-                 * default large page ECC layout defined in NAND core.
-                 */
+                /* Use default large page ECC layout defined in NAND core */
+                mtd_set_ooblayout(mtd, &nand_ooblayout_lp_ops);
                 if (chip->ecc.strength == 32) {
                         nfc->ecc_mode = ECC_60_BYTE;
                         chip->ecc.bytes = 60;
diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c
index 1e37313054f3..6da69af103e6 100644
--- a/drivers/net/can/cc770/cc770.c
+++ b/drivers/net/can/cc770/cc770.c
@@ -390,37 +390,23 @@ static int cc770_get_berr_counter(const struct net_device *dev,
         return 0;
 }
 
-static netdev_tx_t cc770_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static void cc770_tx(struct net_device *dev, int mo)
 {
         struct cc770_priv *priv = netdev_priv(dev);
-        struct net_device_stats *stats = &dev->stats;
-        struct can_frame *cf = (struct can_frame *)skb->data;
-        unsigned int mo = obj2msgobj(CC770_OBJ_TX);
+        struct can_frame *cf = (struct can_frame *)priv->tx_skb->data;
         u8 dlc, rtr;
         u32 id;
         int i;
 
-        if (can_dropped_invalid_skb(dev, skb))
-                return NETDEV_TX_OK;
-
-        if ((cc770_read_reg(priv,
-                            msgobj[mo].ctrl1) & TXRQST_UNC) == TXRQST_SET) {
-                netdev_err(dev, "TX register is still occupied!\n");
-                return NETDEV_TX_BUSY;
-        }
-
-        netif_stop_queue(dev);
-
         dlc = cf->can_dlc;
         id = cf->can_id;
-        if (cf->can_id & CAN_RTR_FLAG)
-                rtr = 0;
-        else
-                rtr = MSGCFG_DIR;
+        rtr = cf->can_id & CAN_RTR_FLAG ? 0 : MSGCFG_DIR;
+
+        cc770_write_reg(priv, msgobj[mo].ctrl0,
+                        MSGVAL_RES | TXIE_RES | RXIE_RES | INTPND_RES);
         cc770_write_reg(priv, msgobj[mo].ctrl1,
                         RMTPND_RES | TXRQST_RES | CPUUPD_SET | NEWDAT_RES);
-        cc770_write_reg(priv, msgobj[mo].ctrl0,
-                        MSGVAL_SET | TXIE_SET | RXIE_RES | INTPND_RES);
+
         if (id & CAN_EFF_FLAG) {
                 id &= CAN_EFF_MASK;
                 cc770_write_reg(priv, msgobj[mo].config,
@@ -439,22 +425,30 @@ static netdev_tx_t cc770_start_xmit(struct sk_buff *skb, struct net_device *dev)
         for (i = 0; i < dlc; i++)
                 cc770_write_reg(priv, msgobj[mo].data[i], cf->data[i]);
 
-        /* Store echo skb before starting the transfer */
-        can_put_echo_skb(skb, dev, 0);
-
         cc770_write_reg(priv, msgobj[mo].ctrl1,
-                        RMTPND_RES | TXRQST_SET | CPUUPD_RES | NEWDAT_UNC);
+                        RMTPND_UNC | TXRQST_SET | CPUUPD_RES | NEWDAT_UNC);
+        cc770_write_reg(priv, msgobj[mo].ctrl0,
+                        MSGVAL_SET | TXIE_SET | RXIE_SET | INTPND_UNC);
+}
 
-        stats->tx_bytes += dlc;
+static netdev_tx_t cc770_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+        struct cc770_priv *priv = netdev_priv(dev);
+        unsigned int mo = obj2msgobj(CC770_OBJ_TX);
 
+        if (can_dropped_invalid_skb(dev, skb))
+                return NETDEV_TX_OK;
 
-        /*
-         * HM: We had some cases of repeated IRQs so make sure the
-         * INT is acknowledged I know it's already further up, but
-         * doing again fixed the issue
-         */
-        cc770_write_reg(priv, msgobj[mo].ctrl0,
-                        MSGVAL_UNC | TXIE_UNC | RXIE_UNC | INTPND_RES);
+        netif_stop_queue(dev);
+
+        if ((cc770_read_reg(priv,
+                            msgobj[mo].ctrl1) & TXRQST_UNC) == TXRQST_SET) {
+                netdev_err(dev, "TX register is still occupied!\n");
+                return NETDEV_TX_BUSY;
+        }
+
+        priv->tx_skb = skb;
+        cc770_tx(dev, mo);
 
         return NETDEV_TX_OK;
 }
@@ -680,19 +674,46 @@ static void cc770_tx_interrupt(struct net_device *dev, unsigned int o)
         struct cc770_priv *priv = netdev_priv(dev);
         struct net_device_stats *stats = &dev->stats;
         unsigned int mo = obj2msgobj(o);
+        struct can_frame *cf;
+        u8 ctrl1;
+
+        ctrl1 = cc770_read_reg(priv, msgobj[mo].ctrl1);
 
-        /* Nothing more to send, switch off interrupts */
         cc770_write_reg(priv, msgobj[mo].ctrl0,
                         MSGVAL_RES | TXIE_RES | RXIE_RES | INTPND_RES);
-        /*
-         * We had some cases of repeated IRQ so make sure the
-         * INT is acknowledged
+        cc770_write_reg(priv, msgobj[mo].ctrl1,
+                        RMTPND_RES | TXRQST_RES | MSGLST_RES | NEWDAT_RES);
+
+        if (unlikely(!priv->tx_skb)) {
+                netdev_err(dev, "missing tx skb in tx interrupt\n");
+                return;
+        }
+
+        if (unlikely(ctrl1 & MSGLST_SET)) {
+                stats->rx_over_errors++;
+                stats->rx_errors++;
+        }
+
+        /* When the CC770 is sending an RTR message and it receives a regular
+         * message that matches the id of the RTR message, it will overwrite the
+         * outgoing message in the TX register. When this happens we must
+         * process the received message and try to transmit the outgoing skb
+         * again.
          */
-        cc770_write_reg(priv, msgobj[mo].ctrl0,
-                        MSGVAL_UNC | TXIE_UNC | RXIE_UNC | INTPND_RES);
+        if (unlikely(ctrl1 & NEWDAT_SET)) {
+                cc770_rx(dev, mo, ctrl1);
+                cc770_tx(dev, mo);
+                return;
+        }
 
+        cf = (struct can_frame *)priv->tx_skb->data;
+        stats->tx_bytes += cf->can_dlc;
         stats->tx_packets++;
+
+        can_put_echo_skb(priv->tx_skb, dev, 0);
         can_get_echo_skb(dev, 0);
+        priv->tx_skb = NULL;
+
         netif_wake_queue(dev);
 }
 
@@ -804,6 +825,7 @@ struct net_device *alloc_cc770dev(int sizeof_priv)
         priv->can.do_set_bittiming = cc770_set_bittiming;
         priv->can.do_set_mode = cc770_set_mode;
         priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES;
+        priv->tx_skb = NULL;
 
         memcpy(priv->obj_flags, cc770_obj_flags, sizeof(cc770_obj_flags));
 
diff --git a/drivers/net/can/cc770/cc770.h b/drivers/net/can/cc770/cc770.h
index a1739db98d91..95752e1d1283 100644
--- a/drivers/net/can/cc770/cc770.h
+++ b/drivers/net/can/cc770/cc770.h
@@ -193,6 +193,8 @@ struct cc770_priv {
         u8 cpu_interface;       /* CPU interface register */
         u8 clkout;              /* Clock out register */
         u8 bus_config;          /* Bus conffiguration register */
+
+        struct sk_buff *tx_skb;
 };
 
 struct net_device *alloc_cc770dev(int sizeof_priv);
diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c
index 2772d05ff11c..fedd927ba6ed 100644
--- a/drivers/net/can/ifi_canfd/ifi_canfd.c
+++ b/drivers/net/can/ifi_canfd/ifi_canfd.c
@@ -30,6 +30,7 @@
 #define IFI_CANFD_STCMD_ERROR_ACTIVE            BIT(2)
 #define IFI_CANFD_STCMD_ERROR_PASSIVE           BIT(3)
 #define IFI_CANFD_STCMD_BUSOFF                  BIT(4)
+#define IFI_CANFD_STCMD_ERROR_WARNING           BIT(5)
 #define IFI_CANFD_STCMD_BUSMONITOR              BIT(16)
 #define IFI_CANFD_STCMD_LOOPBACK                BIT(18)
 #define IFI_CANFD_STCMD_DISABLE_CANFD           BIT(24)
@@ -52,7 +53,10 @@
 #define IFI_CANFD_TXSTCMD_OVERFLOW              BIT(13)
 
 #define IFI_CANFD_INTERRUPT                     0xc
+#define IFI_CANFD_INTERRUPT_ERROR_BUSOFF        BIT(0)
 #define IFI_CANFD_INTERRUPT_ERROR_WARNING       BIT(1)
+#define IFI_CANFD_INTERRUPT_ERROR_STATE_CHG     BIT(2)
+#define IFI_CANFD_INTERRUPT_ERROR_REC_TEC_INC   BIT(3)
 #define IFI_CANFD_INTERRUPT_ERROR_COUNTER       BIT(10)
 #define IFI_CANFD_INTERRUPT_TXFIFO_EMPTY        BIT(16)
 #define IFI_CANFD_INTERRUPT_TXFIFO_REMOVE       BIT(22)
@@ -61,6 +65,10 @@
 #define IFI_CANFD_INTERRUPT_SET_IRQ             ((u32)BIT(31))
 
 #define IFI_CANFD_IRQMASK                       0x10
+#define IFI_CANFD_IRQMASK_ERROR_BUSOFF          BIT(0)
+#define IFI_CANFD_IRQMASK_ERROR_WARNING         BIT(1)
+#define IFI_CANFD_IRQMASK_ERROR_STATE_CHG       BIT(2)
+#define IFI_CANFD_IRQMASK_ERROR_REC_TEC_INC     BIT(3)
 #define IFI_CANFD_IRQMASK_SET_ERR               BIT(7)
 #define IFI_CANFD_IRQMASK_SET_TS                BIT(15)
 #define IFI_CANFD_IRQMASK_TXFIFO_EMPTY          BIT(16)
@@ -136,6 +144,8 @@
 #define IFI_CANFD_SYSCLOCK                      0x50
 
 #define IFI_CANFD_VER                           0x54
+#define IFI_CANFD_VER_REV_MASK                  0xff
+#define IFI_CANFD_VER_REV_MIN_SUPPORTED         0x15
 
 #define IFI_CANFD_IP_ID                         0x58
 #define IFI_CANFD_IP_ID_VALUE                   0xD073CAFD
@@ -220,7 +230,10 @@ static void ifi_canfd_irq_enable(struct net_device *ndev, bool enable)
 
         if (enable) {
                 enirq = IFI_CANFD_IRQMASK_TXFIFO_EMPTY |
-                        IFI_CANFD_IRQMASK_RXFIFO_NEMPTY;
+                        IFI_CANFD_IRQMASK_RXFIFO_NEMPTY |
+                        IFI_CANFD_IRQMASK_ERROR_STATE_CHG |
+                        IFI_CANFD_IRQMASK_ERROR_WARNING |
+                        IFI_CANFD_IRQMASK_ERROR_BUSOFF;
                 if (priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
                         enirq |= IFI_CANFD_INTERRUPT_ERROR_COUNTER;
         }
@@ -361,12 +374,13 @@ static int ifi_canfd_handle_lost_msg(struct net_device *ndev)
         return 1;
 }
 
-static int ifi_canfd_handle_lec_err(struct net_device *ndev, const u32 errctr)
+static int ifi_canfd_handle_lec_err(struct net_device *ndev)
 {
         struct ifi_canfd_priv *priv = netdev_priv(ndev);
         struct net_device_stats *stats = &ndev->stats;
         struct can_frame *cf;
         struct sk_buff *skb;
+        u32 errctr = readl(priv->base + IFI_CANFD_ERROR_CTR);
         const u32 errmask = IFI_CANFD_ERROR_CTR_OVERLOAD_FIRST |
                             IFI_CANFD_ERROR_CTR_ACK_ERROR_FIRST |
                             IFI_CANFD_ERROR_CTR_BIT0_ERROR_FIRST |
@@ -449,6 +463,11 @@ static int ifi_canfd_handle_state_change(struct net_device *ndev,
 
         switch (new_state) {
         case CAN_STATE_ERROR_ACTIVE:
+                /* error active state */
+                priv->can.can_stats.error_warning++;
+                priv->can.state = CAN_STATE_ERROR_ACTIVE;
+                break;
+        case CAN_STATE_ERROR_WARNING:
                 /* error warning state */
                 priv->can.can_stats.error_warning++;
                 priv->can.state = CAN_STATE_ERROR_WARNING;
@@ -477,7 +496,7 @@ static int ifi_canfd_handle_state_change(struct net_device *ndev,
         ifi_canfd_get_berr_counter(ndev, &bec);
 
         switch (new_state) {
-        case CAN_STATE_ERROR_ACTIVE:
+        case CAN_STATE_ERROR_WARNING:
                 /* error warning state */
                 cf->can_id |= CAN_ERR_CRTL;
                 cf->data[1] = (bec.txerr > bec.rxerr) ?
@@ -510,22 +529,21 @@ static int ifi_canfd_handle_state_change(struct net_device *ndev,
         return 1;
 }
 
-static int ifi_canfd_handle_state_errors(struct net_device *ndev, u32 stcmd)
+static int ifi_canfd_handle_state_errors(struct net_device *ndev)
 {
         struct ifi_canfd_priv *priv = netdev_priv(ndev);
+        u32 stcmd = readl(priv->base + IFI_CANFD_STCMD);
         int work_done = 0;
-        u32 isr;
 
-        /*
-         * The ErrWarn condition is a little special, since the bit is
-         * located in the INTERRUPT register instead of STCMD register.
-         */
-        isr = readl(priv->base + IFI_CANFD_INTERRUPT);
-        if ((isr & IFI_CANFD_INTERRUPT_ERROR_WARNING) &&
+        if ((stcmd & IFI_CANFD_STCMD_ERROR_ACTIVE) &&
+            (priv->can.state != CAN_STATE_ERROR_ACTIVE)) {
+                netdev_dbg(ndev, "Error, entered active state\n");
+                work_done += ifi_canfd_handle_state_change(ndev,
+                                                CAN_STATE_ERROR_ACTIVE);
+        }
+
+        if ((stcmd & IFI_CANFD_STCMD_ERROR_WARNING) &&
             (priv->can.state != CAN_STATE_ERROR_WARNING)) {
-                /* Clear the interrupt */
-                writel(IFI_CANFD_INTERRUPT_ERROR_WARNING,
-                       priv->base + IFI_CANFD_INTERRUPT);
                 netdev_dbg(ndev, "Error, entered warning state\n");
                 work_done += ifi_canfd_handle_state_change(ndev,
                                                 CAN_STATE_ERROR_WARNING);
@@ -552,18 +570,11 @@ static int ifi_canfd_poll(struct napi_struct *napi, int quota)
 {
         struct net_device *ndev = napi->dev;
         struct ifi_canfd_priv *priv = netdev_priv(ndev);
-        const u32 stcmd_state_mask = IFI_CANFD_STCMD_ERROR_PASSIVE |
-                                     IFI_CANFD_STCMD_BUSOFF;
-        int work_done = 0;
-
-        u32 stcmd = readl(priv->base + IFI_CANFD_STCMD);
         u32 rxstcmd = readl(priv->base + IFI_CANFD_RXSTCMD);
-        u32 errctr = readl(priv->base + IFI_CANFD_ERROR_CTR);
+        int work_done = 0;
 
         /* Handle bus state changes */
-        if ((stcmd & stcmd_state_mask) ||
-            ((stcmd & IFI_CANFD_STCMD_ERROR_ACTIVE) == 0))
-                work_done += ifi_canfd_handle_state_errors(ndev, stcmd);
+        work_done += ifi_canfd_handle_state_errors(ndev);
 
         /* Handle lost messages on RX */
         if (rxstcmd & IFI_CANFD_RXSTCMD_OVERFLOW)
@@ -571,7 +582,7 @@ static int ifi_canfd_poll(struct napi_struct *napi, int quota)
 
         /* Handle lec errors on the bus */
         if (priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
-                work_done += ifi_canfd_handle_lec_err(ndev, errctr);
+                work_done += ifi_canfd_handle_lec_err(ndev);
 
         /* Handle normal messages on RX */
         if (!(rxstcmd & IFI_CANFD_RXSTCMD_EMPTY))
@@ -592,12 +603,13 @@ static irqreturn_t ifi_canfd_isr(int irq, void *dev_id)
         struct net_device_stats *stats = &ndev->stats;
         const u32 rx_irq_mask = IFI_CANFD_INTERRUPT_RXFIFO_NEMPTY |
                                 IFI_CANFD_INTERRUPT_RXFIFO_NEMPTY_PER |
+                                IFI_CANFD_INTERRUPT_ERROR_COUNTER |
+                                IFI_CANFD_INTERRUPT_ERROR_STATE_CHG |
                                 IFI_CANFD_INTERRUPT_ERROR_WARNING |
-                                IFI_CANFD_INTERRUPT_ERROR_COUNTER;
+                                IFI_CANFD_INTERRUPT_ERROR_BUSOFF;
         const u32 tx_irq_mask = IFI_CANFD_INTERRUPT_TXFIFO_EMPTY |
                                 IFI_CANFD_INTERRUPT_TXFIFO_REMOVE;
-        const u32 clr_irq_mask = ~((u32)(IFI_CANFD_INTERRUPT_SET_IRQ |
-                                         IFI_CANFD_INTERRUPT_ERROR_WARNING));
+        const u32 clr_irq_mask = ~((u32)IFI_CANFD_INTERRUPT_SET_IRQ);
         u32 isr;
 
         isr = readl(priv->base + IFI_CANFD_INTERRUPT);
@@ -933,7 +945,7 @@ static int ifi_canfd_plat_probe(struct platform_device *pdev)
         struct resource *res;
         void __iomem *addr;
         int irq, ret;
-        u32 id;
+        u32 id, rev;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         addr = devm_ioremap_resource(dev, res);
@@ -947,6 +959,13 @@ static int ifi_canfd_plat_probe(struct platform_device *pdev)
                 return -EINVAL;
         }
 
+        rev = readl(addr + IFI_CANFD_VER) & IFI_CANFD_VER_REV_MASK;
+        if (rev < IFI_CANFD_VER_REV_MIN_SUPPORTED) {
+                dev_err(dev, "This block is too old (rev %i), minimum supported is rev %i\n",
+                        rev, IFI_CANFD_VER_REV_MIN_SUPPORTED);
+                return -EINVAL;
+        }
+
         ndev = alloc_candev(sizeof(*priv), 1);
         if (!ndev)
                 return -ENOMEM;
diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 2594f7779c6f..b397a33f3d32 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -26,6 +26,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/iopoll.h>
 #include <linux/can/dev.h>
+#include <linux/pinctrl/consumer.h>
 
 /* napi related */
 #define M_CAN_NAPI_WEIGHT       64
@@ -253,7 +254,7 @@ enum m_can_mram_cfg {
 
 /* Rx FIFO 0/1 Configuration (RXF0C/RXF1C) */
 #define RXFC_FWM_SHIFT  24
-#define RXFC_FWM_MASK   (0x7f < RXFC_FWM_SHIFT)
+#define RXFC_FWM_MASK   (0x7f << RXFC_FWM_SHIFT)
 #define RXFC_FS_SHIFT   16
 #define RXFC_FS_MASK    (0x7f << RXFC_FS_SHIFT)
 
@@ -1700,6 +1701,8 @@ static __maybe_unused int m_can_suspend(struct device *dev)
                 m_can_clk_stop(priv);
         }
 
+        pinctrl_pm_select_sleep_state(dev);
+
         priv->can.state = CAN_STATE_SLEEPING;
 
         return 0;
@@ -1710,6 +1713,8 @@ static __maybe_unused int m_can_resume(struct device *dev)
         struct net_device *ndev = dev_get_drvdata(dev);
         struct m_can_priv *priv = netdev_priv(ndev);
 
+        pinctrl_pm_select_default_state(dev);
+
         m_can_init_ram(priv);
 
         priv->can.state = CAN_STATE_ERROR_ACTIVE;
diff --git a/drivers/net/can/peak_canfd/peak_canfd.c b/drivers/net/can/peak_canfd/peak_canfd.c
index 55513411a82e..ed8561d4a90f 100644
--- a/drivers/net/can/peak_canfd/peak_canfd.c
+++ b/drivers/net/can/peak_canfd/peak_canfd.c
@@ -262,7 +262,6 @@ static int pucan_handle_can_rx(struct peak_canfd_priv *priv,
 
                 spin_lock_irqsave(&priv->echo_lock, flags);
                 can_get_echo_skb(priv->ndev, msg->client);
-                spin_unlock_irqrestore(&priv->echo_lock, flags);
 
                 /* count bytes of the echo instead of skb */
                 stats->tx_bytes += cf_len;
@@ -271,6 +270,7 @@ static int pucan_handle_can_rx(struct peak_canfd_priv *priv,
                 /* restart tx queue (a slot is free) */
                 netif_wake_queue(priv->ndev);
 
+                spin_unlock_irqrestore(&priv->echo_lock, flags);
                 return 0;
         }
 
@@ -333,7 +333,6 @@ static int pucan_handle_status(struct peak_canfd_priv *priv,
 
         /* this STATUS is the CNF of the RX_BARRIER: Tx path can be setup */
         if (pucan_status_is_rx_barrier(msg)) {
-                unsigned long flags;
 
                 if (priv->enable_tx_path) {
                         int err = priv->enable_tx_path(priv);
@@ -342,16 +341,8 @@ static int pucan_handle_status(struct peak_canfd_priv *priv,
                                 return err;
                 }
 
-                /* restart network queue only if echo skb array is free */
-                spin_lock_irqsave(&priv->echo_lock, flags);
-
-                if (!priv->can.echo_skb[priv->echo_idx]) {
-                        spin_unlock_irqrestore(&priv->echo_lock, flags);
-
-                        netif_wake_queue(ndev);
-                } else {
-                        spin_unlock_irqrestore(&priv->echo_lock, flags);
-                }
+                /* start network queue (echo_skb array is empty) */
+                netif_start_queue(ndev);
 
                 return 0;
         }
@@ -726,11 +717,6 @@ static netdev_tx_t peak_canfd_start_xmit(struct sk_buff *skb,
          */
         should_stop_tx_queue = !!(priv->can.echo_skb[priv->echo_idx]);
 
-        spin_unlock_irqrestore(&priv->echo_lock, flags);
-
-        /* write the skb on the interface */
-        priv->write_tx_msg(priv, msg);
-
         /* stop network tx queue if not enough room to save one more msg too */
         if (priv->can.ctrlmode & CAN_CTRLMODE_FD)
                 should_stop_tx_queue |= (room_left <
@@ -742,6 +728,11 @@ static netdev_tx_t peak_canfd_start_xmit(struct sk_buff *skb,
         if (should_stop_tx_queue)
                 netif_stop_queue(ndev);
 
+        spin_unlock_irqrestore(&priv->echo_lock, flags);
+
+        /* write the skb on the interface */
+        priv->write_tx_msg(priv, msg);
+
         return NETDEV_TX_OK;
 }
 
diff --git a/drivers/net/can/peak_canfd/peak_pciefd_main.c b/drivers/net/can/peak_canfd/peak_pciefd_main.c
index 788c3464a3b0..3c51a884db87 100644
--- a/drivers/net/can/peak_canfd/peak_pciefd_main.c
+++ b/drivers/net/can/peak_canfd/peak_pciefd_main.c
@@ -349,8 +349,12 @@ static irqreturn_t pciefd_irq_handler(int irq, void *arg)
                 priv->tx_pages_free++;
                 spin_unlock_irqrestore(&priv->tx_lock, flags);
 
-                /* wake producer up */
-                netif_wake_queue(priv->ucan.ndev);
+                /* wake producer up (only if enough room in echo_skb array) */
+                spin_lock_irqsave(&priv->ucan.echo_lock, flags);
+                if (!priv->ucan.can.echo_skb[priv->ucan.echo_idx])
+                        netif_wake_queue(priv->ucan.ndev);
+
+                spin_unlock_irqrestore(&priv->ucan.echo_lock, flags);
         }
 
         /* re-enable Rx DMA transfer for this CAN */
diff --git a/drivers/net/dsa/Makefile b/drivers/net/dsa/Makefile
index d040aeb45172..15c2a831edf1 100644
--- a/drivers/net/dsa/Makefile
+++ b/drivers/net/dsa/Makefile
@@ -1,7 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_NET_DSA_BCM_SF2)   += bcm-sf2.o
 bcm-sf2-objs                    := bcm_sf2.o bcm_sf2_cfp.o
-obj-$(CONFIG_NET_DSA_LOOP)      += dsa_loop.o dsa_loop_bdinfo.o
+obj-$(CONFIG_NET_DSA_LOOP)      += dsa_loop.o
+ifdef CONFIG_NET_DSA_LOOP
+obj-$(CONFIG_FIXED_PHY)         += dsa_loop_bdinfo.o
+endif
 obj-$(CONFIG_NET_DSA_MT7530)    += mt7530.o
 obj-$(CONFIG_NET_DSA_MV88E6060) += mv88e6060.o
 obj-$(CONFIG_NET_DSA_QCA8K)     += qca8k.o
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index db830a1141d9..63e02a54d537 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -814,8 +814,8 @@ void b53_get_strings(struct dsa_switch *ds, int port, uint8_t *data)
         unsigned int i;
 
         for (i = 0; i < mib_size; i++)
-                memcpy(data + i * ETH_GSTRING_LEN,
-                       mibs[i].name, ETH_GSTRING_LEN);
+                strlcpy(data + i * ETH_GSTRING_LEN,
+                        mibs[i].name, ETH_GSTRING_LEN);
 }
 EXPORT_SYMBOL(b53_get_strings);
 
diff --git a/drivers/net/ethernet/8390/Kconfig b/drivers/net/ethernet/8390/Kconfig
index 29c3075bfb05..fdc673484add 100644
--- a/drivers/net/ethernet/8390/Kconfig
+++ b/drivers/net/ethernet/8390/Kconfig
@@ -3,7 +3,7 @@
 #
 
 config NET_VENDOR_8390
-        bool "National Semi-conductor 8390 devices"
+        bool "National Semiconductor 8390 devices"
         default y
         depends on NET_VENDOR_NATSEMI
         ---help---
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
index 3e5833cf1fab..eb23f9ba1a9a 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
@@ -426,6 +426,8 @@ static int xgbe_pci_resume(struct pci_dev *pdev)
         struct net_device *netdev = pdata->netdev;
         int ret = 0;
 
+        XP_IOWRITE(pdata, XP_INT_EN, 0x1fffff);
+
         pdata->lpm_ctrl &= ~MDIO_CTRL1_LPOWER;
         XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
 
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h b/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h
index 0b49f1aeebd3..fc7383106946 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h
@@ -36,6 +36,8 @@
 #define AQ_CFG_TX_FRAME_MAX  (16U * 1024U)
 #define AQ_CFG_RX_FRAME_MAX  (4U * 1024U)
 
+#define AQ_CFG_TX_CLEAN_BUDGET 256U
+
 /* LRO */
 #define AQ_CFG_IS_LRO_DEF           1U
 
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
index ebbaf63eaf47..c96a92118b8b 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
@@ -247,6 +247,8 @@ void aq_nic_ndev_init(struct aq_nic_s *self)
         self->ndev->hw_features |= aq_hw_caps->hw_features;
         self->ndev->features = aq_hw_caps->hw_features;
         self->ndev->priv_flags = aq_hw_caps->hw_priv_flags;
+        self->ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+
         self->ndev->mtu = aq_nic_cfg->mtu - ETH_HLEN;
         self->ndev->max_mtu = aq_hw_caps->mtu - ETH_FCS_LEN - ETH_HLEN;
 
@@ -937,3 +939,23 @@ err_exit:
 out:
         return err;
 }
+
+void aq_nic_shutdown(struct aq_nic_s *self)
+{
+        int err = 0;
+
+        if (!self->ndev)
+                return;
+
+        rtnl_lock();
+
+        netif_device_detach(self->ndev);
+
+        err = aq_nic_stop(self);
+        if (err < 0)
+                goto err_exit;
+        aq_nic_deinit(self);
+
+err_exit:
+        rtnl_unlock();
+}
\ No newline at end of file
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.h b/drivers/net/ethernet/aquantia/atlantic/aq_nic.h
index d16b0f1a95aa..219b550d1665 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.h
@@ -118,5 +118,6 @@ struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self);
 u32 aq_nic_get_fw_version(struct aq_nic_s *self);
 int aq_nic_change_pm_state(struct aq_nic_s *self, pm_message_t *pm_msg);
 int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self);
+void aq_nic_shutdown(struct aq_nic_s *self);
 
 #endif /* AQ_NIC_H */
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
index 22889fc158f2..ecc6306f940f 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
@@ -226,6 +226,10 @@ static int aq_pci_probe(struct pci_dev *pdev,
                 goto err_ioremap;
 
         self->aq_hw = kzalloc(sizeof(*self->aq_hw), GFP_KERNEL);
+        if (!self->aq_hw) {
+                err = -ENOMEM;
+                goto err_ioremap;
+        }
         self->aq_hw->aq_nic_cfg = aq_nic_get_cfg(self);
 
         for (bar = 0; bar < 4; ++bar) {
@@ -235,19 +239,19 @@ static int aq_pci_probe(struct pci_dev *pdev,
                         mmio_pa = pci_resource_start(pdev, bar);
                         if (mmio_pa == 0U) {
                                 err = -EIO;
-                                goto err_ioremap;
+                                goto err_free_aq_hw;
                         }
 
                         reg_sz = pci_resource_len(pdev, bar);
                         if ((reg_sz <= 24 /*ATL_REGS_SIZE*/)) {
                                 err = -EIO;
-                                goto err_ioremap;
+                                goto err_free_aq_hw;
                         }
 
                         self->aq_hw->mmio = ioremap_nocache(mmio_pa, reg_sz);
                         if (!self->aq_hw->mmio) {
                                 err = -EIO;
-                                goto err_ioremap;
+                                goto err_free_aq_hw;
                         }
                         break;
                 }
@@ -255,7 +259,7 @@ static int aq_pci_probe(struct pci_dev *pdev,
 
         if (bar == 4) {
                 err = -EIO;
-                goto err_ioremap;
+                goto err_free_aq_hw;
         }
 
         numvecs = min((u8)AQ_CFG_VECS_DEF,
@@ -290,6 +294,8 @@ err_register:
         aq_pci_free_irq_vectors(self);
 err_hwinit:
         iounmap(self->aq_hw->mmio);
+err_free_aq_hw:
+        kfree(self->aq_hw);
 err_ioremap:
         free_netdev(ndev);
 err_pci_func:
@@ -317,6 +323,20 @@ static void aq_pci_remove(struct pci_dev *pdev)
         pci_disable_device(pdev);
 }
 
+static void aq_pci_shutdown(struct pci_dev *pdev)
+{
+        struct aq_nic_s *self = pci_get_drvdata(pdev);
+
+        aq_nic_shutdown(self);
+
+        pci_disable_device(pdev);
+
+        if (system_state == SYSTEM_POWER_OFF) {
+                pci_wake_from_d3(pdev, false);
+                pci_set_power_state(pdev, PCI_D3hot);
+        }
+}
+
 static int aq_pci_suspend(struct pci_dev *pdev, pm_message_t pm_msg)
 {
         struct aq_nic_s *self = pci_get_drvdata(pdev);
@@ -339,6 +359,7 @@ static struct pci_driver aq_pci_ops = {
         .remove = aq_pci_remove,
         .suspend = aq_pci_suspend,
         .resume = aq_pci_resume,
+        .shutdown = aq_pci_shutdown,
 };
 
 module_pci_driver(aq_pci_ops);
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
index 0be6a11370bb..b5f1f62e8e25 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
@@ -136,11 +136,12 @@ void aq_ring_queue_stop(struct aq_ring_s *ring)
                 netif_stop_subqueue(ndev, ring->idx);
 }
 
-void aq_ring_tx_clean(struct aq_ring_s *self)
+bool aq_ring_tx_clean(struct aq_ring_s *self)
 {
         struct device *dev = aq_nic_get_dev(self->aq_nic);
+        unsigned int budget = AQ_CFG_TX_CLEAN_BUDGET;
 
-        for (; self->sw_head != self->hw_head;
+        for (; self->sw_head != self->hw_head && budget--;
                 self->sw_head = aq_ring_next_dx(self, self->sw_head)) {
                 struct aq_ring_buff_s *buff = &self->buff_ring[self->sw_head];
 
@@ -167,6 +168,8 @@ void aq_ring_tx_clean(struct aq_ring_s *self)
                 buff->pa = 0U;
                 buff->eop_index = 0xffffU;
         }
+
+        return !!budget;
 }
 
 #define AQ_SKB_ALIGN SKB_DATA_ALIGN(sizeof(struct skb_shared_info))
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.h b/drivers/net/ethernet/aquantia/atlantic/aq_ring.h
index 965fae0fb6e0..ac1329f4051d 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.h
@@ -153,7 +153,7 @@ void aq_ring_free(struct aq_ring_s *self);
 void aq_ring_update_queue_state(struct aq_ring_s *ring);
 void aq_ring_queue_wake(struct aq_ring_s *ring);
 void aq_ring_queue_stop(struct aq_ring_s *ring);
-void aq_ring_tx_clean(struct aq_ring_s *self);
+bool aq_ring_tx_clean(struct aq_ring_s *self);
 int aq_ring_rx_clean(struct aq_ring_s *self,
                      struct napi_struct *napi,
                      int *work_done,
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_vec.c b/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
index f890b8a5a862..d335c334fa56 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
@@ -35,12 +35,12 @@ struct aq_vec_s {
 static int aq_vec_poll(struct napi_struct *napi, int budget)
 {
         struct aq_vec_s *self = container_of(napi, struct aq_vec_s, napi);
+        unsigned int sw_tail_old = 0U;
         struct aq_ring_s *ring = NULL;
+        bool was_tx_cleaned = true;
+        unsigned int i = 0U;
         int work_done = 0;
         int err = 0;
-        unsigned int i = 0U;
-        unsigned int sw_tail_old = 0U;
-        bool was_tx_cleaned = false;
 
         if (!self) {
                 err = -EINVAL;
@@ -57,9 +57,8 @@ static int aq_vec_poll(struct napi_struct *napi, int budget)
 
                         if (ring[AQ_VEC_TX_ID].sw_head !=
                             ring[AQ_VEC_TX_ID].hw_head) {
-                                aq_ring_tx_clean(&ring[AQ_VEC_TX_ID]);
+                                was_tx_cleaned = aq_ring_tx_clean(&ring[AQ_VEC_TX_ID]);
                                 aq_ring_update_queue_state(&ring[AQ_VEC_TX_ID]);
-                                was_tx_cleaned = true;
                         }
 
                         err = self->aq_hw_ops->hw_ring_rx_receive(self->aq_hw,
@@ -90,7 +89,7 @@ static int aq_vec_poll(struct napi_struct *napi, int budget)
                         }
                 }
 
-                if (was_tx_cleaned)
+                if (!was_tx_cleaned)
                         work_done = budget;
 
                 if (work_done < budget) {
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
index 967f0fd07fcf..d3b847ec7465 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
@@ -21,6 +21,10 @@
 
 #define HW_ATL_UCP_0X370_REG    0x0370U
 
+#define HW_ATL_MIF_CMD          0x0200U
+#define HW_ATL_MIF_ADDR         0x0208U
+#define HW_ATL_MIF_VAL          0x020CU
+
 #define HW_ATL_FW_SM_RAM        0x2U
 #define HW_ATL_MPI_FW_VERSION   0x18
 #define HW_ATL_MPI_CONTROL_ADR  0x0368U
@@ -79,16 +83,15 @@ int hw_atl_utils_initfw(struct aq_hw_s *self, const struct aq_fw_ops **fw_ops)
 
 static int hw_atl_utils_soft_reset_flb(struct aq_hw_s *self)
 {
+        u32 gsr, val;
         int k = 0;
-        u32 gsr;
 
         aq_hw_write_reg(self, 0x404, 0x40e1);
         AQ_HW_SLEEP(50);
 
         /* Cleanup SPI */
-        aq_hw_write_reg(self, 0x534, 0xA0);
-        aq_hw_write_reg(self, 0x100, 0x9F);
-        aq_hw_write_reg(self, 0x100, 0x809F);
+        val = aq_hw_read_reg(self, 0x53C);
+        aq_hw_write_reg(self, 0x53C, val | 0x10);
 
         gsr = aq_hw_read_reg(self, HW_ATL_GLB_SOFT_RES_ADR);
         aq_hw_write_reg(self, HW_ATL_GLB_SOFT_RES_ADR, (gsr & 0xBFFF) | 0x8000);
@@ -97,7 +100,14 @@ static int hw_atl_utils_soft_reset_flb(struct aq_hw_s *self)
         aq_hw_write_reg(self, 0x404, 0x80e0);
         aq_hw_write_reg(self, 0x32a8, 0x0);
         aq_hw_write_reg(self, 0x520, 0x1);
+
+        /* Reset SPI again because of possible interrupted SPI burst */
+        val = aq_hw_read_reg(self, 0x53C);
+        aq_hw_write_reg(self, 0x53C, val | 0x10);
         AQ_HW_SLEEP(10);
+        /* Clear SPI reset state */
+        aq_hw_write_reg(self, 0x53C, val & ~0x10);
+
         aq_hw_write_reg(self, 0x404, 0x180e0);
 
         for (k = 0; k < 1000; k++) {
@@ -141,13 +151,15 @@ static int hw_atl_utils_soft_reset_flb(struct aq_hw_s *self)
                 aq_pr_err("FW kickstart failed\n");
                 return -EIO;
         }
+        /* Old FW requires fixed delay after init */
+        AQ_HW_SLEEP(15);
 
         return 0;
 }
 
 static int hw_atl_utils_soft_reset_rbl(struct aq_hw_s *self)
 {
-        u32 gsr, rbl_status;
+        u32 gsr, val, rbl_status;
         int k;
 
         aq_hw_write_reg(self, 0x404, 0x40e1);
@@ -157,6 +169,10 @@ static int hw_atl_utils_soft_reset_rbl(struct aq_hw_s *self)
         /* Alter RBL status */
         aq_hw_write_reg(self, 0x388, 0xDEAD);
 
+        /* Cleanup SPI */
+        val = aq_hw_read_reg(self, 0x53C);
+        aq_hw_write_reg(self, 0x53C, val | 0x10);
+
         /* Global software reset*/
         hw_atl_rx_rx_reg_res_dis_set(self, 0U);
         hw_atl_tx_tx_reg_res_dis_set(self, 0U);
@@ -204,6 +220,8 @@ static int hw_atl_utils_soft_reset_rbl(struct aq_hw_s *self)
                 aq_pr_err("FW kickstart failed\n");
                 return -EIO;
         }
+        /* Old FW requires fixed delay after init */
+        AQ_HW_SLEEP(15);
 
         return 0;
 }
@@ -255,18 +273,22 @@ int hw_atl_utils_fw_downld_dwords(struct aq_hw_s *self, u32 a,
                 }
         }
 
-        aq_hw_write_reg(self, 0x00000208U, a);
-
-        for (++cnt; --cnt;) {
-                u32 i = 0U;
+        aq_hw_write_reg(self, HW_ATL_MIF_ADDR, a);
 
-                aq_hw_write_reg(self, 0x00000200U, 0x00008000U);
+        for (++cnt; --cnt && !err;) {
+                aq_hw_write_reg(self, HW_ATL_MIF_CMD, 0x00008000U);
 
-                for (i = 1024U;
-                        (0x100U & aq_hw_read_reg(self, 0x00000200U)) && --i;) {
-                }
+                if (IS_CHIP_FEATURE(REVISION_B1))
+                        AQ_HW_WAIT_FOR(a != aq_hw_read_reg(self,
+                                                           HW_ATL_MIF_ADDR),
+                                       1, 1000U);
+                else
+                        AQ_HW_WAIT_FOR(!(0x100 & aq_hw_read_reg(self,
+                                                           HW_ATL_MIF_CMD)),
+                                       1, 1000U);
 
-                *(p++) = aq_hw_read_reg(self, 0x0000020CU);
+                *(p++) = aq_hw_read_reg(self, HW_ATL_MIF_VAL);
+                a += 4;
         }
 
         hw_atl_reg_glb_cpu_sem_set(self, 1U, HW_ATL_FW_SM_RAM);
@@ -662,14 +684,18 @@ void hw_atl_utils_hw_chip_features_init(struct aq_hw_s *self, u32 *p)
         u32 val = hw_atl_reg_glb_mif_id_get(self);
         u32 mif_rev = val & 0xFFU;
 
-        if ((3U & mif_rev) == 1U) {
-                chip_features |=
-                        HAL_ATLANTIC_UTILS_CHIP_REVISION_A0 |
+        if ((0xFU & mif_rev) == 1U) {
+                chip_features |= HAL_ATLANTIC_UTILS_CHIP_REVISION_A0 |
                         HAL_ATLANTIC_UTILS_CHIP_MPI_AQ |
                         HAL_ATLANTIC_UTILS_CHIP_MIPS;
-        } else if ((3U & mif_rev) == 2U) {
-                chip_features |=
-                        HAL_ATLANTIC_UTILS_CHIP_REVISION_B0 |
+        } else if ((0xFU & mif_rev) == 2U) {
+                chip_features |= HAL_ATLANTIC_UTILS_CHIP_REVISION_B0 |
+                        HAL_ATLANTIC_UTILS_CHIP_MPI_AQ |
+                        HAL_ATLANTIC_UTILS_CHIP_MIPS |
+                        HAL_ATLANTIC_UTILS_CHIP_TPO2 |
+                        HAL_ATLANTIC_UTILS_CHIP_RPF2;
+        } else if ((0xFU & mif_rev) == 0xAU) {
+                chip_features |= HAL_ATLANTIC_UTILS_CHIP_REVISION_B1 |
                         HAL_ATLANTIC_UTILS_CHIP_MPI_AQ |
                         HAL_ATLANTIC_UTILS_CHIP_MIPS |
                         HAL_ATLANTIC_UTILS_CHIP_TPO2 |
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
index 2c690947910a..cd8f18f39c61 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
@@ -161,6 +161,7 @@ struct __packed hw_aq_atl_utils_mbox {
 #define HAL_ATLANTIC_UTILS_CHIP_MPI_AQ       0x00000010U
 #define HAL_ATLANTIC_UTILS_CHIP_REVISION_A0  0x01000000U
 #define HAL_ATLANTIC_UTILS_CHIP_REVISION_B0  0x02000000U
+#define HAL_ATLANTIC_UTILS_CHIP_REVISION_B1  0x04000000U
 
 #define IS_CHIP_FEATURE(_F_) (HAL_ATLANTIC_UTILS_CHIP_##_F_ & \
         self->chip_features)
diff --git a/drivers/net/ethernet/aquantia/atlantic/ver.h b/drivers/net/ethernet/aquantia/atlantic/ver.h
index 5265b937677b..a445de6837a6 100644
--- a/drivers/net/ethernet/aquantia/atlantic/ver.h
+++ b/drivers/net/ethernet/aquantia/atlantic/ver.h
@@ -13,7 +13,7 @@
 #define NIC_MAJOR_DRIVER_VERSION           2
 #define NIC_MINOR_DRIVER_VERSION           0
 #define NIC_BUILD_DRIVER_VERSION           2
-#define NIC_REVISION_DRIVER_VERSION        0
+#define NIC_REVISION_DRIVER_VERSION        1
 
 #define AQ_CFG_DRV_VERSION_SUFFIX "-kern"
 
diff --git a/drivers/net/ethernet/arc/emac_rockchip.c b/drivers/net/ethernet/arc/emac_rockchip.c
index 16f9bee992fe..0f6576802607 100644
--- a/drivers/net/ethernet/arc/emac_rockchip.c
+++ b/drivers/net/ethernet/arc/emac_rockchip.c
@@ -169,8 +169,10 @@ static int emac_rockchip_probe(struct platform_device *pdev)
         /* Optional regulator for PHY */
         priv->regulator = devm_regulator_get_optional(dev, "phy");
         if (IS_ERR(priv->regulator)) {
-                if (PTR_ERR(priv->regulator) == -EPROBE_DEFER)
-                        return -EPROBE_DEFER;
+                if (PTR_ERR(priv->regulator) == -EPROBE_DEFER) {
+                        err = -EPROBE_DEFER;
+                        goto out_clk_disable;
+                }
                 dev_err(dev, "no regulator found\n");
                 priv->regulator = NULL;
         }
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index f15a8fc6dfc9..3fc549b88c43 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -855,10 +855,12 @@ static void bcm_sysport_tx_reclaim_one(struct bcm_sysport_tx_ring *ring,
 static unsigned int __bcm_sysport_tx_reclaim(struct bcm_sysport_priv *priv,
                                              struct bcm_sysport_tx_ring *ring)
 {
-        unsigned int c_index, last_c_index, last_tx_cn, num_tx_cbs;
         unsigned int pkts_compl = 0, bytes_compl = 0;
         struct net_device *ndev = priv->netdev;
+        unsigned int txbds_processed = 0;
         struct bcm_sysport_cb *cb;
+        unsigned int txbds_ready;
+        unsigned int c_index;
         u32 hw_ind;
 
         /* Clear status before servicing to reduce spurious interrupts */
@@ -871,29 +873,23 @@ static unsigned int __bcm_sysport_tx_reclaim(struct bcm_sysport_priv *priv,
         /* Compute how many descriptors have been processed since last call */
         hw_ind = tdma_readl(priv, TDMA_DESC_RING_PROD_CONS_INDEX(ring->index));
         c_index = (hw_ind >> RING_CONS_INDEX_SHIFT) & RING_CONS_INDEX_MASK;
-        ring->p_index = (hw_ind & RING_PROD_INDEX_MASK);
-
-        last_c_index = ring->c_index;
-        num_tx_cbs = ring->size;
-
-        c_index &= (num_tx_cbs - 1);
-
-        if (c_index >= last_c_index)
-                last_tx_cn = c_index - last_c_index;
-        else
-                last_tx_cn = num_tx_cbs - last_c_index + c_index;
+        txbds_ready = (c_index - ring->c_index) & RING_CONS_INDEX_MASK;
 
         netif_dbg(priv, tx_done, ndev,
-                  "ring=%d c_index=%d last_tx_cn=%d last_c_index=%d\n",
-                  ring->index, c_index, last_tx_cn, last_c_index);
+                  "ring=%d old_c_index=%u c_index=%u txbds_ready=%u\n",
+                  ring->index, ring->c_index, c_index, txbds_ready);
 
-        while (last_tx_cn-- > 0) {
-                cb = ring->cbs + last_c_index;
+        while (txbds_processed < txbds_ready) {
+                cb = &ring->cbs[ring->clean_index];
                 bcm_sysport_tx_reclaim_one(ring, cb, &bytes_compl, &pkts_compl);
 
                 ring->desc_count++;
-                last_c_index++;
-                last_c_index &= (num_tx_cbs - 1);
+                txbds_processed++;
+
+                if (likely(ring->clean_index < ring->size - 1))
+                        ring->clean_index++;
+                else
+                        ring->clean_index = 0;
         }
 
         u64_stats_update_begin(&priv->syncp);
@@ -1394,6 +1390,7 @@ static int bcm_sysport_init_tx_ring(struct bcm_sysport_priv *priv,
         netif_tx_napi_add(priv->netdev, &ring->napi, bcm_sysport_tx_poll, 64);
         ring->index = index;
         ring->size = size;
+        ring->clean_index = 0;
         ring->alloc_size = ring->size;
         ring->desc_cpu = p;
         ring->desc_count = ring->size;
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.h b/drivers/net/ethernet/broadcom/bcmsysport.h
index f5a984c1c986..19c91c76e327 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.h
+++ b/drivers/net/ethernet/broadcom/bcmsysport.h
@@ -706,7 +706,7 @@ struct bcm_sysport_tx_ring {
         unsigned int    desc_count;     /* Number of descriptors */
         unsigned int    curr_desc;      /* Current descriptor */
         unsigned int    c_index;        /* Last consumer index */
-        unsigned int    p_index;        /* Current producer index */
+        unsigned int    clean_index;    /* Current clean index */
         struct bcm_sysport_cb *cbs;     /* Transmit control blocks */
         struct dma_desc *desc_cpu;      /* CPU view of the descriptor */
         struct bcm_sysport_priv *priv;  /* private context backpointer */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 74fc9af4aadb..b8388e93520a 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -13913,7 +13913,7 @@ static void bnx2x_register_phc(struct bnx2x *bp)
         bp->ptp_clock = ptp_clock_register(&bp->ptp_clock_info, &bp->pdev->dev);
         if (IS_ERR(bp->ptp_clock)) {
                 bp->ptp_clock = NULL;
-                BNX2X_ERR("PTP clock registeration failed\n");
+                BNX2X_ERR("PTP clock registration failed\n");
         }
 }
 
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 1500243b9886..c7e5e6f09647 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -1439,7 +1439,7 @@ static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
             (skb->dev->features & NETIF_F_HW_VLAN_CTAG_RX)) {
                 u16 vlan_proto = tpa_info->metadata >>
                         RX_CMP_FLAGS2_METADATA_TPID_SFT;
-                u16 vtag = tpa_info->metadata & RX_CMP_FLAGS2_METADATA_VID_MASK;
+                u16 vtag = tpa_info->metadata & RX_CMP_FLAGS2_METADATA_TCI_MASK;
 
                 __vlan_hwaccel_put_tag(skb, htons(vlan_proto), vtag);
         }
@@ -1623,7 +1623,7 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons,
              cpu_to_le32(RX_CMP_FLAGS2_META_FORMAT_VLAN)) &&
             (skb->dev->features & NETIF_F_HW_VLAN_CTAG_RX)) {
                 u32 meta_data = le32_to_cpu(rxcmp1->rx_cmp_meta_data);
-                u16 vtag = meta_data & RX_CMP_FLAGS2_METADATA_VID_MASK;
+                u16 vtag = meta_data & RX_CMP_FLAGS2_METADATA_TCI_MASK;
                 u16 vlan_proto = meta_data >> RX_CMP_FLAGS2_METADATA_TPID_SFT;
 
                 __vlan_hwaccel_put_tag(skb, htons(vlan_proto), vtag);
@@ -3847,6 +3847,9 @@ static int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, u16 vnic_id, u32 tpa_flags)
         struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
         struct hwrm_vnic_tpa_cfg_input req = {0};
 
+        if (vnic->fw_vnic_id == INVALID_HW_RING_ID)
+                return 0;
+
         bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_TPA_CFG, -1, -1);
 
         if (tpa_flags) {
@@ -4558,18 +4561,17 @@ int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings)
         return rc;
 }
 
-static int
-bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
-                           int ring_grps, int cp_rings, int vnics)
+static void
+__bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, struct hwrm_func_cfg_input *req,
+                             int tx_rings, int rx_rings, int ring_grps,
+                             int cp_rings, int vnics)
 {
-        struct hwrm_func_cfg_input req = {0};
         u32 enables = 0;
-        int rc;
 
-        bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
-        req.fid = cpu_to_le16(0xffff);
+        bnxt_hwrm_cmd_hdr_init(bp, req, HWRM_FUNC_CFG, -1, -1);
+        req->fid = cpu_to_le16(0xffff);
         enables |= tx_rings ? FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS : 0;
-        req.num_tx_rings = cpu_to_le16(tx_rings);
+        req->num_tx_rings = cpu_to_le16(tx_rings);
         if (bp->flags & BNXT_FLAG_NEW_RM) {
                 enables |= rx_rings ? FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS : 0;
                 enables |= cp_rings ? FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS |
@@ -4578,16 +4580,53 @@ bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
                            FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS : 0;
                 enables |= vnics ? FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS : 0;
 
-                req.num_rx_rings = cpu_to_le16(rx_rings);
-                req.num_hw_ring_grps = cpu_to_le16(ring_grps);
-                req.num_cmpl_rings = cpu_to_le16(cp_rings);
-                req.num_stat_ctxs = req.num_cmpl_rings;
-                req.num_vnics = cpu_to_le16(vnics);
+                req->num_rx_rings = cpu_to_le16(rx_rings);
+                req->num_hw_ring_grps = cpu_to_le16(ring_grps);
+                req->num_cmpl_rings = cpu_to_le16(cp_rings);
+                req->num_stat_ctxs = req->num_cmpl_rings;
+                req->num_vnics = cpu_to_le16(vnics);
         }
-        if (!enables)
+        req->enables = cpu_to_le32(enables);
+}
+
+static void
+__bnxt_hwrm_reserve_vf_rings(struct bnxt *bp,
+                             struct hwrm_func_vf_cfg_input *req, int tx_rings,
+                             int rx_rings, int ring_grps, int cp_rings,
+                             int vnics)
+{
+        u32 enables = 0;
+
+        bnxt_hwrm_cmd_hdr_init(bp, req, HWRM_FUNC_VF_CFG, -1, -1);
+        enables |= tx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_TX_RINGS : 0;
+        enables |= rx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_RX_RINGS : 0;
+        enables |= cp_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS |
+                              FUNC_VF_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0;
+        enables |= ring_grps ? FUNC_VF_CFG_REQ_ENABLES_NUM_HW_RING_GRPS : 0;
+        enables |= vnics ? FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS : 0;
+
+        req->num_tx_rings = cpu_to_le16(tx_rings);
+        req->num_rx_rings = cpu_to_le16(rx_rings);
+        req->num_hw_ring_grps = cpu_to_le16(ring_grps);
+        req->num_cmpl_rings = cpu_to_le16(cp_rings);
+        req->num_stat_ctxs = req->num_cmpl_rings;
+        req->num_vnics = cpu_to_le16(vnics);
+
+        req->enables = cpu_to_le32(enables);
+}
+
+static int
+bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
+                           int ring_grps, int cp_rings, int vnics)
+{
+        struct hwrm_func_cfg_input req = {0};
+        int rc;
+
+        __bnxt_hwrm_reserve_pf_rings(bp, &req, tx_rings, rx_rings, ring_grps,
+                                     cp_rings, vnics);
+        if (!req.enables)
                 return 0;
 
-        req.enables = cpu_to_le32(enables);
         rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
         if (rc)
                 return -ENOMEM;
@@ -4604,7 +4643,6 @@ bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
                            int ring_grps, int cp_rings, int vnics)
 {
         struct hwrm_func_vf_cfg_input req = {0};
-        u32 enables = 0;
         int rc;
 
         if (!(bp->flags & BNXT_FLAG_NEW_RM)) {
@@ -4612,22 +4650,8 @@ bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
                 return 0;
         }
 
-        bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_CFG, -1, -1);
-        enables |= tx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_TX_RINGS : 0;
-        enables |= rx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_RX_RINGS : 0;
-        enables |= cp_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS |
-                              FUNC_VF_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0;
-        enables |= ring_grps ? FUNC_VF_CFG_REQ_ENABLES_NUM_HW_RING_GRPS : 0;
-        enables |= vnics ? FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS : 0;
-
-        req.num_tx_rings = cpu_to_le16(tx_rings);
-        req.num_rx_rings = cpu_to_le16(rx_rings);
-        req.num_hw_ring_grps = cpu_to_le16(ring_grps);
-        req.num_cmpl_rings = cpu_to_le16(cp_rings);
-        req.num_stat_ctxs = req.num_cmpl_rings;
-        req.num_vnics = cpu_to_le16(vnics);
-
-        req.enables = cpu_to_le32(enables);
+        __bnxt_hwrm_reserve_vf_rings(bp, &req, tx_rings, rx_rings, ring_grps,
+                                     cp_rings, vnics);
         rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
         if (rc)
                 return -ENOMEM;
@@ -4743,39 +4767,25 @@ static bool bnxt_need_reserve_rings(struct bnxt *bp)
 }
 
 static int bnxt_hwrm_check_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
-                                    int ring_grps, int cp_rings)
+                                    int ring_grps, int cp_rings, int vnics)
 {
         struct hwrm_func_vf_cfg_input req = {0};
-        u32 flags, enables;
+        u32 flags;
         int rc;
 
         if (!(bp->flags & BNXT_FLAG_NEW_RM))
                 return 0;
 
-        bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_CFG, -1, -1);
+        __bnxt_hwrm_reserve_vf_rings(bp, &req, tx_rings, rx_rings, ring_grps,
+                                     cp_rings, vnics);
         flags = FUNC_VF_CFG_REQ_FLAGS_TX_ASSETS_TEST |
                 FUNC_VF_CFG_REQ_FLAGS_RX_ASSETS_TEST |
                 FUNC_VF_CFG_REQ_FLAGS_CMPL_ASSETS_TEST |
                 FUNC_VF_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST |
                 FUNC_VF_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST |
                 FUNC_VF_CFG_REQ_FLAGS_VNIC_ASSETS_TEST;
-        enables = FUNC_VF_CFG_REQ_ENABLES_NUM_TX_RINGS |
-                  FUNC_VF_CFG_REQ_ENABLES_NUM_RX_RINGS |
-                  FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS |
-                  FUNC_VF_CFG_REQ_ENABLES_NUM_HW_RING_GRPS |
-                  FUNC_VF_CFG_REQ_ENABLES_NUM_STAT_CTXS |
-                  FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS;
 
         req.flags = cpu_to_le32(flags);
-        req.enables = cpu_to_le32(enables);
-        req.num_tx_rings = cpu_to_le16(tx_rings);
-        req.num_rx_rings = cpu_to_le16(rx_rings);
-        req.num_cmpl_rings = cpu_to_le16(cp_rings);
-        req.num_hw_ring_grps = cpu_to_le16(ring_grps);
-        req.num_stat_ctxs = cpu_to_le16(cp_rings);
-        req.num_vnics = cpu_to_le16(1);
-        if (bp->flags & BNXT_FLAG_RFS)
-                req.num_vnics = cpu_to_le16(rx_rings + 1);
         rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
         if (rc)
                 return -ENOMEM;
@@ -4783,38 +4793,23 @@ static int bnxt_hwrm_check_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
 }
 
 static int bnxt_hwrm_check_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
-                                    int ring_grps, int cp_rings)
+                                    int ring_grps, int cp_rings, int vnics)
 {
         struct hwrm_func_cfg_input req = {0};
-        u32 flags, enables;
+        u32 flags;
         int rc;
 
-        bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
-        req.fid = cpu_to_le16(0xffff);
+        __bnxt_hwrm_reserve_pf_rings(bp, &req, tx_rings, rx_rings, ring_grps,
+                                     cp_rings, vnics);
         flags = FUNC_CFG_REQ_FLAGS_TX_ASSETS_TEST;
-        enables = FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS;
-        req.num_tx_rings = cpu_to_le16(tx_rings);
-        if (bp->flags & BNXT_FLAG_NEW_RM) {
+        if (bp->flags & BNXT_FLAG_NEW_RM)
                 flags |= FUNC_CFG_REQ_FLAGS_RX_ASSETS_TEST |
                          FUNC_CFG_REQ_FLAGS_CMPL_ASSETS_TEST |
                          FUNC_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST |
                          FUNC_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST |
                          FUNC_CFG_REQ_FLAGS_VNIC_ASSETS_TEST;
-                enables |= FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS |
-                           FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS |
-                           FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS |
-                           FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS |
-                           FUNC_CFG_REQ_ENABLES_NUM_VNICS;
-                req.num_rx_rings = cpu_to_le16(rx_rings);
-                req.num_cmpl_rings = cpu_to_le16(cp_rings);
-                req.num_hw_ring_grps = cpu_to_le16(ring_grps);
-                req.num_stat_ctxs = cpu_to_le16(cp_rings);
-                req.num_vnics = cpu_to_le16(1);
-                if (bp->flags & BNXT_FLAG_RFS)
-                        req.num_vnics = cpu_to_le16(rx_rings + 1);
-        }
+
         req.flags = cpu_to_le32(flags);
-        req.enables = cpu_to_le32(enables);
         rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
         if (rc)
                 return -ENOMEM;
@@ -4822,17 +4817,17 @@ static int bnxt_hwrm_check_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
 }
 
 static int bnxt_hwrm_check_rings(struct bnxt *bp, int tx_rings, int rx_rings,
-                                 int ring_grps, int cp_rings)
+                                 int ring_grps, int cp_rings, int vnics)
 {
         if (bp->hwrm_spec_code < 0x10801)
                 return 0;
 
         if (BNXT_PF(bp))
                 return bnxt_hwrm_check_pf_rings(bp, tx_rings, rx_rings,
-                                                ring_grps, cp_rings);
+                                                ring_grps, cp_rings, vnics);
 
         return bnxt_hwrm_check_vf_rings(bp, tx_rings, rx_rings, ring_grps,
-                                        cp_rings);
+                                        cp_rings, vnics);
 }
 
 static void bnxt_hwrm_set_coal_params(struct bnxt_coal *hw_coal,
@@ -5865,7 +5860,6 @@ static int bnxt_init_msix(struct bnxt *bp)
                 if (rc)
                         goto msix_setup_exit;
 
-                bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
                 bp->cp_nr_rings = (min == 1) ?
                                   max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
                                   bp->tx_nr_rings + bp->rx_nr_rings;
@@ -5897,7 +5891,6 @@ static int bnxt_init_inta(struct bnxt *bp)
         bp->rx_nr_rings = 1;
         bp->tx_nr_rings = 1;
         bp->cp_nr_rings = 1;
-        bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
         bp->flags |= BNXT_FLAG_SHARED_RINGS;
         bp->irq_tbl[0].vector = bp->pdev->irq;
         return 0;
@@ -7531,7 +7524,7 @@ int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
         int max_rx, max_tx, tx_sets = 1;
         int tx_rings_needed;
         int rx_rings = rx;
-        int cp, rc;
+        int cp, vnics, rc;
 
         if (tcs)
                 tx_sets = tcs;
@@ -7547,10 +7540,15 @@ int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
         if (max_tx < tx_rings_needed)
                 return -ENOMEM;
 
+        vnics = 1;
+        if (bp->flags & BNXT_FLAG_RFS)
+                vnics += rx_rings;
+
         if (bp->flags & BNXT_FLAG_AGG_RINGS)
                 rx_rings <<= 1;
         cp = sh ? max_t(int, tx_rings_needed, rx) : tx_rings_needed + rx;
-        return bnxt_hwrm_check_rings(bp, tx_rings_needed, rx_rings, rx, cp);
+        return bnxt_hwrm_check_rings(bp, tx_rings_needed, rx_rings, rx, cp,
+                                     vnics);
 }
 
 static void bnxt_unmap_bars(struct bnxt *bp, struct pci_dev *pdev)
@@ -8437,13 +8435,20 @@ int bnxt_restore_pf_fw_resources(struct bnxt *bp)
                 return 0;
 
         bnxt_hwrm_func_qcaps(bp);
-        __bnxt_close_nic(bp, true, false);
+
+        if (netif_running(bp->dev))
+                __bnxt_close_nic(bp, true, false);
+
         bnxt_clear_int_mode(bp);
         rc = bnxt_init_int_mode(bp);
-        if (rc)
-                dev_close(bp->dev);
-        else
-                rc = bnxt_open_nic(bp, true, false);
+
+        if (netif_running(bp->dev)) {
+                if (rc)
+                        dev_close(bp->dev);
+                else
+                        rc = bnxt_open_nic(bp, true, false);
+        }
+
         return rc;
 }
 
@@ -8664,6 +8669,11 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         if (rc)
                 goto init_err_pci_clean;
 
+        /* No TC has been set yet and rings may have been trimmed due to
+         * limited MSIX, so we re-initialize the TX rings per TC.
+         */
+        bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
+
         bnxt_get_wol_settings(bp);
         if (bp->flags & BNXT_FLAG_WOL_CAP)
                 device_set_wakeup_enable(&pdev->dev, bp->wol);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 1989c470172c..5e3d62189cab 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -189,6 +189,7 @@ struct rx_cmp_ext {
         #define RX_CMP_FLAGS2_T_L4_CS_CALC                      (0x1 << 3)
         #define RX_CMP_FLAGS2_META_FORMAT_VLAN                  (0x1 << 4)
         __le32 rx_cmp_meta_data;
+        #define RX_CMP_FLAGS2_METADATA_TCI_MASK                 0xffff
         #define RX_CMP_FLAGS2_METADATA_VID_MASK                 0xfff
         #define RX_CMP_FLAGS2_METADATA_TPID_MASK                0xffff0000
          #define RX_CMP_FLAGS2_METADATA_TPID_SFT                 16
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
index fbe6e208e17b..65c2cee35766 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
@@ -349,6 +349,9 @@ static int bnxt_hwrm_cfa_flow_free(struct bnxt *bp, __le16 flow_handle)
         if (rc)
                 netdev_info(bp->dev, "Error: %s: flow_handle=0x%x rc=%d",
                             __func__, flow_handle, rc);
+
+        if (rc)
+                rc = -EIO;
         return rc;
 }
 
@@ -484,13 +487,15 @@ static int bnxt_hwrm_cfa_flow_alloc(struct bnxt *bp, struct bnxt_tc_flow *flow,
         req.action_flags = cpu_to_le16(action_flags);
 
         mutex_lock(&bp->hwrm_cmd_lock);
-
         rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
         if (!rc)
                 *flow_handle = resp->flow_handle;
-
         mutex_unlock(&bp->hwrm_cmd_lock);
 
+        if (rc == HWRM_ERR_CODE_RESOURCE_ALLOC_ERROR)
+                rc = -ENOSPC;
+        else if (rc)
+                rc = -EIO;
         return rc;
 }
 
@@ -561,6 +566,8 @@ static int hwrm_cfa_decap_filter_alloc(struct bnxt *bp,
                 netdev_info(bp->dev, "%s: Error rc=%d", __func__, rc);
         mutex_unlock(&bp->hwrm_cmd_lock);
 
+        if (rc)
+                rc = -EIO;
         return rc;
 }
 
@@ -576,6 +583,9 @@ static int hwrm_cfa_decap_filter_free(struct bnxt *bp,
         rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
         if (rc)
                 netdev_info(bp->dev, "%s: Error rc=%d", __func__, rc);
+
+        if (rc)
+                rc = -EIO;
         return rc;
 }
 
@@ -624,6 +634,8 @@ static int hwrm_cfa_encap_record_alloc(struct bnxt *bp,
                 netdev_info(bp->dev, "%s: Error rc=%d", __func__, rc);
         mutex_unlock(&bp->hwrm_cmd_lock);
 
+        if (rc)
+                rc = -EIO;
         return rc;
 }
 
@@ -639,6 +651,9 @@ static int hwrm_cfa_encap_record_free(struct bnxt *bp,
         rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
         if (rc)
                 netdev_info(bp->dev, "%s: Error rc=%d", __func__, rc);
+
+        if (rc)
+                rc = -EIO;
         return rc;
 }
 
@@ -1269,11 +1284,8 @@ static int bnxt_tc_del_flow(struct bnxt *bp,
         flow_node = rhashtable_lookup_fast(&tc_info->flow_table,
                                            &tc_flow_cmd->cookie,
                                            tc_info->flow_ht_params);
-        if (!flow_node) {
-                netdev_info(bp->dev, "ERROR: no flow_node for cookie %lx",
-                            tc_flow_cmd->cookie);
+        if (!flow_node)
                 return -EINVAL;
-        }
 
         return __bnxt_tc_del_flow(bp, flow_node);
 }
@@ -1290,11 +1302,8 @@ static int bnxt_tc_get_flow_stats(struct bnxt *bp,
         flow_node = rhashtable_lookup_fast(&tc_info->flow_table,
                                            &tc_flow_cmd->cookie,
                                            tc_info->flow_ht_params);
-        if (!flow_node) {
-                netdev_info(bp->dev, "Error: no flow_node for cookie %lx",
-                            tc_flow_cmd->cookie);
+        if (!flow_node)
                 return -1;
-        }
 
         flow = &flow_node->flow;
         curr_stats = &flow->stats;
@@ -1344,8 +1353,10 @@ bnxt_hwrm_cfa_flow_stats_get(struct bnxt *bp, int num_flows,
         } else {
                 netdev_info(bp->dev, "error rc=%d", rc);
         }
-
         mutex_unlock(&bp->hwrm_cmd_lock);
+
+        if (rc)
+                rc = -EIO;
         return rc;
 }
 
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index a77ee2f8fb8d..f2593978ae75 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -922,8 +922,8 @@ static int tg3_ape_send_event(struct tg3 *tp, u32 event)
         if (!(apedata & APE_FW_STATUS_READY))
                 return -EAGAIN;
 
-        /* Wait for up to 1 millisecond for APE to service previous event. */
-        err = tg3_ape_event_lock(tp, 1000);
+        /* Wait for up to 20 millisecond for APE to service previous event. */
+        err = tg3_ape_event_lock(tp, 20000);
         if (err)
                 return err;
 
@@ -946,6 +946,7 @@ static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
 
         switch (kind) {
         case RESET_KIND_INIT:
+                tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_COUNT, tp->ape_hb++);
                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
                                 APE_HOST_SEG_SIG_MAGIC);
                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
@@ -962,13 +963,6 @@ static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
                 event = APE_EVENT_STATUS_STATE_START;
                 break;
         case RESET_KIND_SHUTDOWN:
-                /* With the interface we are currently using,
-                 * APE does not track driver state.  Wiping
-                 * out the HOST SEGMENT SIGNATURE forces
-                 * the APE to assume OS absent status.
-                 */
-                tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG, 0x0);
-
                 if (device_may_wakeup(&tp->pdev->dev) &&
                     tg3_flag(tp, WOL_ENABLE)) {
                         tg3_ape_write32(tp, TG3_APE_HOST_WOL_SPEED,
@@ -990,6 +984,18 @@ static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
         tg3_ape_send_event(tp, event);
 }
 
+static void tg3_send_ape_heartbeat(struct tg3 *tp,
+                                   unsigned long interval)
+{
+        /* Check if hb interval has exceeded */
+        if (!tg3_flag(tp, ENABLE_APE) ||
+            time_before(jiffies, tp->ape_hb_jiffies + interval))
+                return;
+
+        tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_COUNT, tp->ape_hb++);
+        tp->ape_hb_jiffies = jiffies;
+}
+
 static void tg3_disable_ints(struct tg3 *tp)
 {
         int i;
@@ -7262,6 +7268,7 @@ static int tg3_poll_msix(struct napi_struct *napi, int budget)
                 }
         }
 
+        tg3_send_ape_heartbeat(tp, TG3_APE_HB_INTERVAL << 1);
         return work_done;
 
 tx_recovery:
@@ -7344,6 +7351,7 @@ static int tg3_poll(struct napi_struct *napi, int budget)
                 }
         }
 
+        tg3_send_ape_heartbeat(tp, TG3_APE_HB_INTERVAL << 1);
         return work_done;
 
 tx_recovery:
@@ -10732,7 +10740,7 @@ static int tg3_reset_hw(struct tg3 *tp, bool reset_phy)
         if (tg3_flag(tp, ENABLE_APE))
                 /* Write our heartbeat update interval to APE. */
                 tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS,
-                                APE_HOST_HEARTBEAT_INT_DISABLE);
+                                APE_HOST_HEARTBEAT_INT_5SEC);
 
         tg3_write_sig_post_reset(tp, RESET_KIND_INIT);
 
@@ -11077,6 +11085,9 @@ static void tg3_timer(struct timer_list *t)
                 tp->asf_counter = tp->asf_multiplier;
         }
 
+        /* Update the APE heartbeat every 5 seconds.*/
+        tg3_send_ape_heartbeat(tp, TG3_APE_HB_INTERVAL);
+
         spin_unlock(&tp->lock);
 
 restart_timer:
@@ -16653,6 +16664,8 @@ static int tg3_get_invariants(struct tg3 *tp, const struct pci_device_id *ent)
                                        pci_state_reg);
 
                 tg3_ape_lock_init(tp);
+                tp->ape_hb_interval =
+                        msecs_to_jiffies(APE_HOST_HEARTBEAT_INT_5SEC);
         }
 
         /* Set up tp->grc_local_ctrl before calling
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 47f51cc0566d..1d61aa3efda1 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -2508,6 +2508,7 @@
 #define TG3_APE_LOCK_PHY3               5
 #define TG3_APE_LOCK_GPIO               7
 
+#define TG3_APE_HB_INTERVAL             (tp->ape_hb_interval)
 #define TG3_EEPROM_SB_F1R2_MBA_OFF      0x10
 
 
@@ -3423,6 +3424,10 @@ struct tg3 {
         struct device                   *hwmon_dev;
         bool                            link_up;
         bool                            pcierr_recovery;
+
+        u32                             ape_hb;
+        unsigned long                   ape_hb_interval;
+        unsigned long                   ape_hb_jiffies;
 };
 
 /* Accessor macros for chip and asic attributes
diff --git a/drivers/net/ethernet/cavium/common/cavium_ptp.c b/drivers/net/ethernet/cavium/common/cavium_ptp.c
index c87c9c684a33..d59497a7bdce 100644
--- a/drivers/net/ethernet/cavium/common/cavium_ptp.c
+++ b/drivers/net/ethernet/cavium/common/cavium_ptp.c
@@ -75,6 +75,8 @@ EXPORT_SYMBOL(cavium_ptp_get);
 
 void cavium_ptp_put(struct cavium_ptp *ptp)
 {
+        if (!ptp)
+                return;
         pci_dev_put(ptp->pdev);
 }
 EXPORT_SYMBOL(cavium_ptp_put);
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index b68cde9f17d2..7d9c5ffbd041 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -67,11 +67,6 @@ module_param(cpi_alg, int, S_IRUGO);
 MODULE_PARM_DESC(cpi_alg,
                  "PFC algorithm (0=none, 1=VLAN, 2=VLAN16, 3=IP Diffserv)");
 
-struct nicvf_xdp_tx {
-        u64 dma_addr;
-        u8  qidx;
-};
-
 static inline u8 nicvf_netdev_qidx(struct nicvf *nic, u8 qidx)
 {
         if (nic->sqs_mode)
@@ -507,29 +502,14 @@ static int nicvf_init_resources(struct nicvf *nic)
         return 0;
 }
 
-static void nicvf_unmap_page(struct nicvf *nic, struct page *page, u64 dma_addr)
-{
-        /* Check if it's a recycled page, if not unmap the DMA mapping.
-         * Recycled page holds an extra reference.
-         */
-        if (page_ref_count(page) == 1) {
-                dma_addr &= PAGE_MASK;
-                dma_unmap_page_attrs(&nic->pdev->dev, dma_addr,
-                                     RCV_FRAG_LEN + XDP_HEADROOM,
-                                     DMA_FROM_DEVICE,
-                                     DMA_ATTR_SKIP_CPU_SYNC);
-        }
-}
-
 static inline bool nicvf_xdp_rx(struct nicvf *nic, struct bpf_prog *prog,
                                 struct cqe_rx_t *cqe_rx, struct snd_queue *sq,
                                 struct rcv_queue *rq, struct sk_buff **skb)
 {
         struct xdp_buff xdp;
         struct page *page;
-        struct nicvf_xdp_tx *xdp_tx = NULL;
         u32 action;
-        u16 len, err, offset = 0;
+        u16 len, offset = 0;
         u64 dma_addr, cpu_addr;
         void *orig_data;
 
@@ -543,7 +523,7 @@ static inline bool nicvf_xdp_rx(struct nicvf *nic, struct bpf_prog *prog,
         cpu_addr = (u64)phys_to_virt(cpu_addr);
         page = virt_to_page((void *)cpu_addr);
 
-        xdp.data_hard_start = page_address(page) + RCV_BUF_HEADROOM;
+        xdp.data_hard_start = page_address(page);
         xdp.data = (void *)cpu_addr;
         xdp_set_data_meta_invalid(&xdp);
         xdp.data_end = xdp.data + len;
@@ -563,7 +543,18 @@ static inline bool nicvf_xdp_rx(struct nicvf *nic, struct bpf_prog *prog,
 
         switch (action) {
         case XDP_PASS:
-                nicvf_unmap_page(nic, page, dma_addr);
+                /* Check if it's a recycled page, if not
+                 * unmap the DMA mapping.
+                 *
+                 * Recycled page holds an extra reference.
+                 */
+                if (page_ref_count(page) == 1) {
+                        dma_addr &= PAGE_MASK;
+                        dma_unmap_page_attrs(&nic->pdev->dev, dma_addr,
+                                             RCV_FRAG_LEN + XDP_PACKET_HEADROOM,
+                                             DMA_FROM_DEVICE,
+                                             DMA_ATTR_SKIP_CPU_SYNC);
+                }
 
                 /* Build SKB and pass on packet to network stack */
                 *skb = build_skb(xdp.data,
@@ -576,20 +567,6 @@ static inline bool nicvf_xdp_rx(struct nicvf *nic, struct bpf_prog *prog,
         case XDP_TX:
                 nicvf_xdp_sq_append_pkt(nic, sq, (u64)xdp.data, dma_addr, len);
                 return true;
-        case XDP_REDIRECT:
-                /* Save DMA address for use while transmitting */
-                xdp_tx = (struct nicvf_xdp_tx *)page_address(page);
-                xdp_tx->dma_addr = dma_addr;
-                xdp_tx->qidx = nicvf_netdev_qidx(nic, cqe_rx->rq_idx);
-
-                err = xdp_do_redirect(nic->pnicvf->netdev, &xdp, prog);
-                if (!err)
-                        return true;
-
-                /* Free the page on error */
-                nicvf_unmap_page(nic, page, dma_addr);
-                put_page(page);
-                break;
         default:
                 bpf_warn_invalid_xdp_action(action);
                 /* fall through */
@@ -597,7 +574,18 @@ static inline bool nicvf_xdp_rx(struct nicvf *nic, struct bpf_prog *prog,
                 trace_xdp_exception(nic->netdev, prog, action);
                 /* fall through */
         case XDP_DROP:
-                nicvf_unmap_page(nic, page, dma_addr);
+                /* Check if it's a recycled page, if not
+                 * unmap the DMA mapping.
+                 *
+                 * Recycled page holds an extra reference.
+                 */
+                if (page_ref_count(page) == 1) {
+                        dma_addr &= PAGE_MASK;
+                        dma_unmap_page_attrs(&nic->pdev->dev, dma_addr,
+                                             RCV_FRAG_LEN + XDP_PACKET_HEADROOM,
+                                             DMA_FROM_DEVICE,
+                                             DMA_ATTR_SKIP_CPU_SYNC);
+                }
                 put_page(page);
                 return true;
         }
@@ -1864,50 +1852,6 @@ static int nicvf_xdp(struct net_device *netdev, struct netdev_bpf *xdp)
         }
 }
 
-static int nicvf_xdp_xmit(struct net_device *netdev, struct xdp_buff *xdp)
-{
-        struct nicvf *nic = netdev_priv(netdev);
-        struct nicvf *snic = nic;
-        struct nicvf_xdp_tx *xdp_tx;
-        struct snd_queue *sq;
-        struct page *page;
-        int err, qidx;
-
-        if (!netif_running(netdev) || !nic->xdp_prog)
-                return -EINVAL;
-
-        page = virt_to_page(xdp->data);
-        xdp_tx = (struct nicvf_xdp_tx *)page_address(page);
-        qidx = xdp_tx->qidx;
-
-        if (xdp_tx->qidx >= nic->xdp_tx_queues)
-                return -EINVAL;
-
-        /* Get secondary Qset's info */
-        if (xdp_tx->qidx >= MAX_SND_QUEUES_PER_QS) {
-                qidx = xdp_tx->qidx / MAX_SND_QUEUES_PER_QS;
-                snic = (struct nicvf *)nic->snicvf[qidx - 1];
-                if (!snic)
-                        return -EINVAL;
-                qidx = xdp_tx->qidx % MAX_SND_QUEUES_PER_QS;
-        }
-
-        sq = &snic->qs->sq[qidx];
-        err = nicvf_xdp_sq_append_pkt(snic, sq, (u64)xdp->data,
-                                      xdp_tx->dma_addr,
-                                      xdp->data_end - xdp->data);
-        if (err)
-                return -ENOMEM;
-
-        nicvf_xdp_sq_doorbell(snic, sq, qidx);
-        return 0;
-}
-
-static void nicvf_xdp_flush(struct net_device *dev)
-{
-        return;
-}
-
 static int nicvf_config_hwtstamp(struct net_device *netdev, struct ifreq *ifr)
 {
         struct hwtstamp_config config;
@@ -1986,8 +1930,6 @@ static const struct net_device_ops nicvf_netdev_ops = {
         .ndo_fix_features       = nicvf_fix_features,
         .ndo_set_features       = nicvf_set_features,
         .ndo_bpf                = nicvf_xdp,
-        .ndo_xdp_xmit           = nicvf_xdp_xmit,
-        .ndo_xdp_flush          = nicvf_xdp_flush,
         .ndo_do_ioctl           = nicvf_ioctl,
 };
 
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
index 3eae9ff9b53a..d42704d07484 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
@@ -204,7 +204,7 @@ static inline int nicvf_alloc_rcv_buffer(struct nicvf *nic, struct rbdr *rbdr,
 
         /* Reserve space for header modifications by BPF program */
         if (rbdr->is_xdp)
-                buf_len += XDP_HEADROOM;
+                buf_len += XDP_PACKET_HEADROOM;
 
         /* Check if it's recycled */
         if (pgcache)
@@ -224,9 +224,8 @@ ret:
                         nic->rb_page = NULL;
                         return -ENOMEM;
                 }
-
                 if (pgcache)
-                        pgcache->dma_addr = *rbuf + XDP_HEADROOM;
+                        pgcache->dma_addr = *rbuf + XDP_PACKET_HEADROOM;
                 nic->rb_page_offset += buf_len;
         }
 
@@ -1244,7 +1243,7 @@ int nicvf_xdp_sq_append_pkt(struct nicvf *nic, struct snd_queue *sq,
         int qentry;
 
         if (subdesc_cnt > sq->xdp_free_cnt)
-                return -1;
+                return 0;
 
         qentry = nicvf_get_sq_desc(sq, subdesc_cnt);
 
@@ -1255,7 +1254,7 @@ int nicvf_xdp_sq_append_pkt(struct nicvf *nic, struct snd_queue *sq,
 
         sq->xdp_desc_cnt += subdesc_cnt;
 
-        return 0;
+        return 1;
 }
 
 /* Calculate no of SQ subdescriptors needed to transmit all
@@ -1656,7 +1655,7 @@ static void nicvf_unmap_rcv_buffer(struct nicvf *nic, u64 dma_addr,
                 if (page_ref_count(page) != 1)
                         return;
 
-                len += XDP_HEADROOM;
+                len += XDP_PACKET_HEADROOM;
                 /* Receive buffers in XDP mode are mapped from page start */
                 dma_addr &= PAGE_MASK;
         }
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.h b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h
index ce1eed7a6d63..5e9a03cf1b4d 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.h
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h
@@ -11,7 +11,6 @@
 
 #include <linux/netdevice.h>
 #include <linux/iommu.h>
-#include <linux/bpf.h>
 #include <net/xdp.h>
 #include "q_struct.h"
 
@@ -94,9 +93,6 @@
 #define RCV_FRAG_LEN     (SKB_DATA_ALIGN(DMA_BUFFER_LEN + NET_SKB_PAD) + \
                          SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
 
-#define RCV_BUF_HEADROOM        128 /* To store dma address for XDP redirect */
-#define XDP_HEADROOM            (XDP_PACKET_HEADROOM + RCV_BUF_HEADROOM)
-
 #define MAX_CQES_FOR_TX         ((SND_QUEUE_LEN / MIN_SQ_DESC_PER_PKT_XMIT) * \
                                  MAX_CQE_PER_PKT_XMIT)
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
index 557fd8bfd54e..00a1d2d13169 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
@@ -472,7 +472,7 @@ int cudbg_collect_cim_la(struct cudbg_init *pdbg_init,
 
         if (is_t6(padap->params.chip)) {
                 size = padap->params.cim_la_size / 10 + 1;
-                size *= 11 * sizeof(u32);
+                size *= 10 * sizeof(u32);
         } else {
                 size = padap->params.cim_la_size / 8;
                 size *= 8 * sizeof(u32);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
index 30485f9a598f..143686c60234 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
@@ -102,7 +102,7 @@ static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity)
         case CUDBG_CIM_LA:
                 if (is_t6(adap->params.chip)) {
                         len = adap->params.cim_la_size / 10 + 1;
-                        len *= 11 * sizeof(u32);
+                        len *= 10 * sizeof(u32);
                 } else {
                         len = adap->params.cim_la_size / 8;
                         len *= 8 * sizeof(u32);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 56bc626ef006..61022b5f6743 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -4970,7 +4970,6 @@ static void cxgb4_mgmt_setup(struct net_device *dev)
         /* Initialize the device structure. */
         dev->netdev_ops = &cxgb4_mgmt_netdev_ops;
         dev->ethtool_ops = &cxgb4_mgmt_ethtool_ops;
-        dev->needs_free_netdev = true;
 }
 
 static int cxgb4_iov_configure(struct pci_dev *pdev, int num_vfs)
@@ -4982,9 +4981,10 @@ static int cxgb4_iov_configure(struct pci_dev *pdev, int num_vfs)
 
         pcie_fw = readl(adap->regs + PCIE_FW_A);
         /* Check if cxgb4 is the MASTER and fw is initialized */
-        if (!(pcie_fw & PCIE_FW_INIT_F) ||
+        if (num_vfs &&
+            (!(pcie_fw & PCIE_FW_INIT_F) ||
             !(pcie_fw & PCIE_FW_MASTER_VLD_F) ||
-            PCIE_FW_MASTER_G(pcie_fw) != CXGB4_UNIFIED_PF) {
+            PCIE_FW_MASTER_G(pcie_fw) != CXGB4_UNIFIED_PF)) {
                 dev_warn(&pdev->dev,
                          "cxgb4 driver needs to be MASTER to support SRIOV\n");
                 return -EOPNOTSUPP;
@@ -5180,6 +5180,8 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         adapter->name = pci_name(pdev);
         adapter->mbox = func;
         adapter->pf = func;
+        adapter->params.chip = chip;
+        adapter->adap_idx = adap_idx;
         adapter->msg_enable = DFLT_MSG_ENABLE;
         adapter->mbox_log = kzalloc(sizeof(*adapter->mbox_log) +
                                     (sizeof(struct mbox_cmd) *
@@ -5599,24 +5601,24 @@ static void remove_one(struct pci_dev *pdev)
 #if IS_ENABLED(CONFIG_IPV6)
                 t4_cleanup_clip_tbl(adapter);
 #endif
-                iounmap(adapter->regs);
                 if (!is_t4(adapter->params.chip))
                         iounmap(adapter->bar2);
-                pci_disable_pcie_error_reporting(pdev);
-                if ((adapter->flags & DEV_ENABLED)) {
-                        pci_disable_device(pdev);
-                        adapter->flags &= ~DEV_ENABLED;
-                }
-                pci_release_regions(pdev);
-                kfree(adapter->mbox_log);
-                synchronize_rcu();
-                kfree(adapter);
         }
 #ifdef CONFIG_PCI_IOV
         else {
                 cxgb4_iov_configure(adapter->pdev, 0);
         }
 #endif
+        iounmap(adapter->regs);
+        pci_disable_pcie_error_reporting(pdev);
+        if ((adapter->flags & DEV_ENABLED)) {
+                pci_disable_device(pdev);
+                adapter->flags &= ~DEV_ENABLED;
+        }
+        pci_release_regions(pdev);
+        kfree(adapter->mbox_log);
+        synchronize_rcu();
+        kfree(adapter);
 }
 
 /* "Shutdown" quiesces the device, stopping Ingress Packet and Interrupt
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 047609ef0515..920bccd6bc40 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -2637,7 +2637,6 @@ void t4_get_regs(struct adapter *adap, void *buf, size_t buf_size)
 }
 
 #define EEPROM_STAT_ADDR   0x7bfc
-#define VPD_SIZE           0x800
 #define VPD_BASE           0x400
 #define VPD_BASE_OLD       0
 #define VPD_LEN            1024
@@ -2704,15 +2703,6 @@ int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p)
         if (!vpd)
                 return -ENOMEM;
 
-        /* We have two VPD data structures stored in the adapter VPD area.
-         * By default, Linux calculates the size of the VPD area by traversing
-         * the first VPD area at offset 0x0, so we need to tell the OS what
-         * our real VPD size is.
-         */
-        ret = pci_set_vpd_size(adapter->pdev, VPD_SIZE);
-        if (ret < 0)
-                goto out;
-
         /* Card information normally starts at VPD_BASE but early cards had
          * it at 0.
          */
diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c
index 5eb999af2c40..bd3f6e4d1341 100644
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -540,6 +540,7 @@ static int gmac_setup_txqs(struct net_device *netdev)
 
         if (port->txq_dma_base & ~DMA_Q_BASE_MASK) {
                 dev_warn(geth->dev, "TX queue base it not aligned\n");
+                kfree(skb_tab);
                 return -ENOMEM;
         }
 
diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
index 7caa8da48421..e4ec32a9ca15 100644
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
@@ -2008,7 +2008,6 @@ static inline int dpaa_xmit(struct dpaa_priv *priv,
         }
 
         if (unlikely(err < 0)) {
-                percpu_stats->tx_errors++;
                 percpu_stats->tx_fifo_errors++;
                 return err;
         }
@@ -2278,7 +2277,6 @@ static enum qman_cb_dqrr_result rx_default_dqrr(struct qman_portal *portal,
         vaddr = phys_to_virt(addr);
         prefetch(vaddr + qm_fd_get_offset(fd));
 
-        fd_format = qm_fd_get_format(fd);
         /* The only FD types that we may receive are contig and S/G */
         WARN_ON((fd_format != qm_fd_contig) && (fd_format != qm_fd_sg));
 
@@ -2311,8 +2309,10 @@ static enum qman_cb_dqrr_result rx_default_dqrr(struct qman_portal *portal,
 
         skb_len = skb->len;
 
-        if (unlikely(netif_receive_skb(skb) == NET_RX_DROP))
+        if (unlikely(netif_receive_skb(skb) == NET_RX_DROP)) {
+                percpu_stats->rx_dropped++;
                 return qman_cb_dqrr_consume;
+        }
 
         percpu_stats->rx_packets++;
         percpu_stats->rx_bytes += skb_len;
@@ -2860,7 +2860,7 @@ static int dpaa_remove(struct platform_device *pdev)
         struct device *dev;
         int err;
 
-        dev = &pdev->dev;
+        dev = pdev->dev.parent;
         net_dev = dev_get_drvdata(dev);
 
         priv = netdev_priv(net_dev);
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 7a7f3a42b2aa..d4604bc8eb5b 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -3600,6 +3600,8 @@ fec_drv_remove(struct platform_device *pdev)
         fec_enet_mii_remove(fep);
         if (fep->reg_phy)
                 regulator_disable(fep->reg_phy);
+        pm_runtime_put(&pdev->dev);
+        pm_runtime_disable(&pdev->dev);
         if (of_phy_is_fixed_link(np))
                 of_phy_deregister_fixed_link(np);
         of_node_put(fep->phy_node);
diff --git a/drivers/net/ethernet/freescale/fman/fman_dtsec.c b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
index ea43b4974149..7af31ddd093f 100644
--- a/drivers/net/ethernet/freescale/fman/fman_dtsec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
@@ -1100,7 +1100,7 @@ int dtsec_add_hash_mac_address(struct fman_mac *dtsec, enet_addr_t *eth_addr)
         set_bucket(dtsec->regs, bucket, true);
 
         /* Create element to be added to the driver hash table */
-        hash_entry = kmalloc(sizeof(*hash_entry), GFP_KERNEL);
+        hash_entry = kmalloc(sizeof(*hash_entry), GFP_ATOMIC);
         if (!hash_entry)
                 return -ENOMEM;
         hash_entry->addr = addr;
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 3bdeb295514b..f27f9bae1a4a 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -2934,29 +2934,17 @@ static bool gfar_add_rx_frag(struct gfar_rx_buff *rxb, u32 lstatus,
 {
         int size = lstatus & BD_LENGTH_MASK;
         struct page *page = rxb->page;
-        bool last = !!(lstatus & BD_LFLAG(RXBD_LAST));
-
-        /* Remove the FCS from the packet length */
-        if (last)
-                size -= ETH_FCS_LEN;
 
         if (likely(first)) {
                 skb_put(skb, size);
         } else {
                 /* the last fragments' length contains the full frame length */
-                if (last)
+                if (lstatus & BD_LFLAG(RXBD_LAST))
                         size -= skb->len;
 
-                /* Add the last fragment if it contains something other than
-                 * the FCS, otherwise drop it and trim off any part of the FCS
-                 * that was already received.
-                 */
-                if (size > 0)
-                        skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
-                                        rxb->page_offset + RXBUF_ALIGNMENT,
-                                        size, GFAR_RXB_TRUESIZE);
-                else if (size < 0)
-                        pskb_trim(skb, skb->len + size);
+                skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
+                                rxb->page_offset + RXBUF_ALIGNMENT,
+                                size, GFAR_RXB_TRUESIZE);
         }
 
         /* try reuse page */
@@ -3069,12 +3057,12 @@ static void gfar_process_frame(struct net_device *ndev, struct sk_buff *skb)
         if (priv->padding)
                 skb_pull(skb, priv->padding);
 
+        /* Trim off the FCS */
+        pskb_trim(skb, skb->len - ETH_FCS_LEN);
+
         if (ndev->features & NETIF_F_RXCSUM)
                 gfar_rx_checksum(skb, fcb);
 
-        /* Tell the skb what kind of packet this is */
-        skb->protocol = eth_type_trans(skb, ndev);
-
         /* There's need to check for NETIF_F_HW_VLAN_CTAG_RX here.
          * Even if vlan rx accel is disabled, on some chips
          * RXFCB_VLN is pseudo randomly set.
@@ -3145,13 +3133,15 @@ int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit)
                         continue;
                 }
 
+                gfar_process_frame(ndev, skb);
+
                 /* Increment the number of packets */
                 total_pkts++;
                 total_bytes += skb->len;
 
                 skb_record_rx_queue(skb, rx_queue->qindex);
 
-                gfar_process_frame(ndev, skb);
+                skb->protocol = eth_type_trans(skb, ndev);
 
                 /* Send the packet up the stack */
                 napi_gro_receive(&rx_queue->grp->napi_rx, skb);
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
index 86944bc3b273..74bd260ca02a 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
@@ -666,7 +666,7 @@ static void hns_gmac_get_strings(u32 stringset, u8 *data)
 
 static int hns_gmac_get_sset_count(int stringset)
 {
-        if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS)
+        if (stringset == ETH_SS_STATS)
                 return ARRAY_SIZE(g_gmac_stats_string);
 
         return 0;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
index b62816c1574e..93e71e27401b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
@@ -422,7 +422,7 @@ void hns_ppe_update_stats(struct hns_ppe_cb *ppe_cb)
 
 int hns_ppe_get_sset_count(int stringset)
 {
-        if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS)
+        if (stringset == ETH_SS_STATS)
                 return ETH_PPE_STATIC_NUM;
         return 0;
 }
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
index 6f3570cfb501..e2e28532e4dc 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
@@ -876,7 +876,7 @@ void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data)
  */
 int hns_rcb_get_ring_sset_count(int stringset)
 {
-        if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS)
+        if (stringset == ETH_SS_STATS)
                 return HNS_RING_STATIC_REG_NUM;
 
         return 0;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index 7ea7f8a4aa2a..2e14a3ae1d8b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -993,8 +993,10 @@ int hns_get_sset_count(struct net_device *netdev, int stringset)
                         cnt--;
 
                 return cnt;
-        } else {
+        } else if (stringset == ETH_SS_STATS) {
                 return (HNS_NET_STATS_CNT + ops->get_sset_count(h, stringset));
+        } else {
+                return -EOPNOTSUPP;
         }
 }
 
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 27447260215d..1b3cc8bb0705 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -791,6 +791,18 @@ static int ibmvnic_login(struct net_device *netdev)
         return 0;
 }
 
+static void release_login_buffer(struct ibmvnic_adapter *adapter)
+{
+        kfree(adapter->login_buf);
+        adapter->login_buf = NULL;
+}
+
+static void release_login_rsp_buffer(struct ibmvnic_adapter *adapter)
+{
+        kfree(adapter->login_rsp_buf);
+        adapter->login_rsp_buf = NULL;
+}
+
 static void release_resources(struct ibmvnic_adapter *adapter)
 {
         int i;
@@ -813,6 +825,10 @@ static void release_resources(struct ibmvnic_adapter *adapter)
                         }
                 }
         }
+        kfree(adapter->napi);
+        adapter->napi = NULL;
+
+        release_login_rsp_buffer(adapter);
 }
 
 static int set_link_state(struct ibmvnic_adapter *adapter, u8 link_state)
@@ -1057,6 +1073,35 @@ static int ibmvnic_open(struct net_device *netdev)
         return rc;
 }
 
+static void clean_rx_pools(struct ibmvnic_adapter *adapter)
+{
+        struct ibmvnic_rx_pool *rx_pool;
+        u64 rx_entries;
+        int rx_scrqs;
+        int i, j;
+
+        if (!adapter->rx_pool)
+                return;
+
+        rx_scrqs = be32_to_cpu(adapter->login_rsp_buf->num_rxadd_subcrqs);
+        rx_entries = adapter->req_rx_add_entries_per_subcrq;
+
+        /* Free any remaining skbs in the rx buffer pools */
+        for (i = 0; i < rx_scrqs; i++) {
+                rx_pool = &adapter->rx_pool[i];
+                if (!rx_pool)
+                        continue;
+
+                netdev_dbg(adapter->netdev, "Cleaning rx_pool[%d]\n", i);
+                for (j = 0; j < rx_entries; j++) {
+                        if (rx_pool->rx_buff[j].skb) {
+                                dev_kfree_skb_any(rx_pool->rx_buff[j].skb);
+                                rx_pool->rx_buff[j].skb = NULL;
+                        }
+                }
+        }
+}
+
 static void clean_tx_pools(struct ibmvnic_adapter *adapter)
 {
         struct ibmvnic_tx_pool *tx_pool;
@@ -1134,7 +1179,7 @@ static int __ibmvnic_close(struct net_device *netdev)
                         }
                 }
         }
-
+        clean_rx_pools(adapter);
         clean_tx_pools(adapter);
         adapter->state = VNIC_CLOSED;
         return rc;
@@ -1670,8 +1715,6 @@ static int do_reset(struct ibmvnic_adapter *adapter,
                 return 0;
         }
 
-        netif_carrier_on(netdev);
-
         /* kick napi */
         for (i = 0; i < adapter->req_rx_queues; i++)
                 napi_schedule(&adapter->napi[i]);
@@ -1679,6 +1722,8 @@ static int do_reset(struct ibmvnic_adapter *adapter,
         if (adapter->reset_reason != VNIC_RESET_FAILOVER)
                 netdev_notify_peers(netdev);
 
+        netif_carrier_on(netdev);
+
         return 0;
 }
 
@@ -1853,6 +1898,12 @@ restart_poll:
                                    be16_to_cpu(next->rx_comp.rc));
                         /* free the entry */
                         next->rx_comp.first = 0;
+                        dev_kfree_skb_any(rx_buff->skb);
+                        remove_buff_from_pool(adapter, rx_buff);
+                        continue;
+                } else if (!rx_buff->skb) {
+                        /* free the entry */
+                        next->rx_comp.first = 0;
                         remove_buff_from_pool(adapter, rx_buff);
                         continue;
                 }
@@ -3013,6 +3064,7 @@ static void send_login(struct ibmvnic_adapter *adapter)
         struct vnic_login_client_data *vlcd;
         int i;
 
+        release_login_rsp_buffer(adapter);
         client_data_len = vnic_client_data_len(adapter);
 
         buffer_size =
@@ -3738,6 +3790,7 @@ static int handle_login_rsp(union ibmvnic_crq *login_rsp_crq,
                 ibmvnic_remove(adapter->vdev);
                 return -EIO;
         }
+        release_login_buffer(adapter);
         complete(&adapter->init_done);
 
         return 0;
diff --git a/drivers/net/ethernet/intel/e1000e/defines.h b/drivers/net/ethernet/intel/e1000e/defines.h
index afb7ebe20b24..824fd44e25f0 100644
--- a/drivers/net/ethernet/intel/e1000e/defines.h
+++ b/drivers/net/ethernet/intel/e1000e/defines.h
@@ -400,6 +400,10 @@
 #define E1000_ICR_RXDMT0        0x00000010 /* Rx desc min. threshold (0) */
 #define E1000_ICR_RXO           0x00000040 /* Receiver Overrun */
 #define E1000_ICR_RXT0          0x00000080 /* Rx timer intr (ring 0) */
+#define E1000_ICR_MDAC          0x00000200 /* MDIO Access Complete */
+#define E1000_ICR_SRPD          0x00010000 /* Small Receive Packet Detected */
+#define E1000_ICR_ACK           0x00020000 /* Receive ACK Frame Detected */
+#define E1000_ICR_MNG           0x00040000 /* Manageability Event Detected */
 #define E1000_ICR_ECCER         0x00400000 /* Uncorrectable ECC Error */
 /* If this bit asserted, the driver should claim the interrupt */
 #define E1000_ICR_INT_ASSERTED  0x80000000
@@ -407,7 +411,7 @@
 #define E1000_ICR_RXQ1          0x00200000 /* Rx Queue 1 Interrupt */
 #define E1000_ICR_TXQ0          0x00400000 /* Tx Queue 0 Interrupt */
 #define E1000_ICR_TXQ1          0x00800000 /* Tx Queue 1 Interrupt */
-#define E1000_ICR_OTHER         0x01000000 /* Other Interrupts */
+#define E1000_ICR_OTHER         0x01000000 /* Other Interrupt */
 
 /* PBA ECC Register */
 #define E1000_PBA_ECC_COUNTER_MASK  0xFFF00000 /* ECC counter mask */
@@ -431,12 +435,27 @@
         E1000_IMS_RXSEQ  |    \
         E1000_IMS_LSC)
 
+/* These are all of the events related to the OTHER interrupt.
+ */
+#define IMS_OTHER_MASK ( \
+        E1000_IMS_LSC  | \
+        E1000_IMS_RXO  | \
+        E1000_IMS_MDAC | \
+        E1000_IMS_SRPD | \
+        E1000_IMS_ACK  | \
+        E1000_IMS_MNG)
+
 /* Interrupt Mask Set */
 #define E1000_IMS_TXDW      E1000_ICR_TXDW      /* Transmit desc written back */
 #define E1000_IMS_LSC       E1000_ICR_LSC       /* Link Status Change */
 #define E1000_IMS_RXSEQ     E1000_ICR_RXSEQ     /* Rx sequence error */
 #define E1000_IMS_RXDMT0    E1000_ICR_RXDMT0    /* Rx desc min. threshold */
+#define E1000_IMS_RXO       E1000_ICR_RXO       /* Receiver Overrun */
 #define E1000_IMS_RXT0      E1000_ICR_RXT0      /* Rx timer intr */
+#define E1000_IMS_MDAC      E1000_ICR_MDAC      /* MDIO Access Complete */
+#define E1000_IMS_SRPD      E1000_ICR_SRPD      /* Small Receive Packet */
+#define E1000_IMS_ACK       E1000_ICR_ACK       /* Receive ACK Frame Detected */
+#define E1000_IMS_MNG       E1000_ICR_MNG       /* Manageability Event */
 #define E1000_IMS_ECCER     E1000_ICR_ECCER     /* Uncorrectable ECC Error */
 #define E1000_IMS_RXQ0      E1000_ICR_RXQ0      /* Rx Queue 0 Interrupt */
 #define E1000_IMS_RXQ1      E1000_ICR_RXQ1      /* Rx Queue 1 Interrupt */
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 31277d3bb7dc..1dddfb7b2de6 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -1367,9 +1367,6 @@ out:
  *  Checks to see of the link status of the hardware has changed.  If a
  *  change in link status has been detected, then we read the PHY registers
  *  to get the current speed/duplex if link exists.
- *
- *  Returns a negative error code (-E1000_ERR_*) or 0 (link down) or 1 (link
- *  up).
  **/
 static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
 {
@@ -1385,7 +1382,8 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
          * Change or Rx Sequence Error interrupt.
          */
         if (!mac->get_link_status)
-                return 1;
+                return 0;
+        mac->get_link_status = false;
 
         /* First we want to see if the MII Status Register reports
          * link.  If so, then we want to get the current speed/duplex
@@ -1393,12 +1391,12 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
          */
         ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
         if (ret_val)
-                return ret_val;
+                goto out;
 
         if (hw->mac.type == e1000_pchlan) {
                 ret_val = e1000_k1_gig_workaround_hv(hw, link);
                 if (ret_val)
-                        return ret_val;
+                        goto out;
         }
 
         /* When connected at 10Mbps half-duplex, some parts are excessively
@@ -1431,7 +1429,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
 
                 ret_val = hw->phy.ops.acquire(hw);
                 if (ret_val)
-                        return ret_val;
+                        goto out;
 
                 if (hw->mac.type == e1000_pch2lan)
                         emi_addr = I82579_RX_CONFIG;
@@ -1453,7 +1451,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
                 hw->phy.ops.release(hw);
 
                 if (ret_val)
-                        return ret_val;
+                        goto out;
 
                 if (hw->mac.type >= e1000_pch_spt) {
                         u16 data;
@@ -1462,14 +1460,14 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
                         if (speed == SPEED_1000) {
                                 ret_val = hw->phy.ops.acquire(hw);
                                 if (ret_val)
-                                        return ret_val;
+                                        goto out;
 
                                 ret_val = e1e_rphy_locked(hw,
                                                           PHY_REG(776, 20),
                                                           &data);
                                 if (ret_val) {
                                         hw->phy.ops.release(hw);
-                                        return ret_val;
+                                        goto out;
                                 }
 
                                 ptr_gap = (data & (0x3FF << 2)) >> 2;
@@ -1483,18 +1481,18 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
                                 }
                                 hw->phy.ops.release(hw);
                                 if (ret_val)
-                                        return ret_val;
+                                        goto out;
                         } else {
                                 ret_val = hw->phy.ops.acquire(hw);
                                 if (ret_val)
-                                        return ret_val;
+                                        goto out;
 
                                 ret_val = e1e_wphy_locked(hw,
                                                           PHY_REG(776, 20),
                                                           0xC023);
                                 hw->phy.ops.release(hw);
                                 if (ret_val)
-                                        return ret_val;
+                                        goto out;
 
                         }
                 }
@@ -1521,7 +1519,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
             (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V3)) {
                 ret_val = e1000_k1_workaround_lpt_lp(hw, link);
                 if (ret_val)
-                        return ret_val;
+                        goto out;
         }
         if (hw->mac.type >= e1000_pch_lpt) {
                 /* Set platform power management values for
@@ -1529,7 +1527,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
                  */
                 ret_val = e1000_platform_pm_pch_lpt(hw, link);
                 if (ret_val)
-                        return ret_val;
+                        goto out;
         }
 
         /* Clear link partner's EEE ability */
@@ -1552,9 +1550,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
         }
 
         if (!link)
-                return 0;       /* No link detected */
-
-        mac->get_link_status = false;
+                goto out;
 
         switch (hw->mac.type) {
         case e1000_pch2lan:
@@ -1616,12 +1612,14 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
          * different link partner.
          */
         ret_val = e1000e_config_fc_after_link_up(hw);
-        if (ret_val) {
+        if (ret_val)
                 e_dbg("Error configuring flow control\n");
-                return ret_val;
-        }
 
-        return 1;
+        return ret_val;
+
+out:
+        mac->get_link_status = true;
+        return ret_val;
 }
 
 static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
diff --git a/drivers/net/ethernet/intel/e1000e/mac.c b/drivers/net/ethernet/intel/e1000e/mac.c
index f457c5703d0c..5bdc3a2d4fd7 100644
--- a/drivers/net/ethernet/intel/e1000e/mac.c
+++ b/drivers/net/ethernet/intel/e1000e/mac.c
@@ -410,9 +410,6 @@ void e1000e_clear_hw_cntrs_base(struct e1000_hw *hw)
  *  Checks to see of the link status of the hardware has changed.  If a
  *  change in link status has been detected, then we read the PHY registers
  *  to get the current speed/duplex if link exists.
- *
- *  Returns a negative error code (-E1000_ERR_*) or 0 (link down) or 1 (link
- *  up).
  **/
 s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
 {
@@ -426,20 +423,16 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
          * Change or Rx Sequence Error interrupt.
          */
         if (!mac->get_link_status)
-                return 1;
+                return 0;
+        mac->get_link_status = false;
 
         /* First we want to see if the MII Status Register reports
          * link.  If so, then we want to get the current speed/duplex
          * of the PHY.
          */
         ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
-        if (ret_val)
-                return ret_val;
-
-        if (!link)
-                return 0;       /* No link detected */
-
-        mac->get_link_status = false;
+        if (ret_val || !link)
+                goto out;
 
         /* Check if there was DownShift, must be checked
          * immediately after link-up
@@ -464,12 +457,14 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
          * different link partner.
          */
         ret_val = e1000e_config_fc_after_link_up(hw);
-        if (ret_val) {
+        if (ret_val)
                 e_dbg("Error configuring flow control\n");
-                return ret_val;
-        }
 
-        return 1;
+        return ret_val;
+
+out:
+        mac->get_link_status = true;
+        return ret_val;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 1298b69f990b..dc853b0863af 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -1914,30 +1914,20 @@ static irqreturn_t e1000_msix_other(int __always_unused irq, void *data)
         struct net_device *netdev = data;
         struct e1000_adapter *adapter = netdev_priv(netdev);
         struct e1000_hw *hw = &adapter->hw;
-        u32 icr;
-        bool enable = true;
-
-        icr = er32(ICR);
-        if (icr & E1000_ICR_RXO) {
-                ew32(ICR, E1000_ICR_RXO);
-                enable = false;
-                /* napi poll will re-enable Other, make sure it runs */
-                if (napi_schedule_prep(&adapter->napi)) {
-                        adapter->total_rx_bytes = 0;
-                        adapter->total_rx_packets = 0;
-                        __napi_schedule(&adapter->napi);
-                }
-        }
+        u32 icr = er32(ICR);
+
+        if (icr & adapter->eiac_mask)
+                ew32(ICS, (icr & adapter->eiac_mask));
+
         if (icr & E1000_ICR_LSC) {
-                ew32(ICR, E1000_ICR_LSC);
                 hw->mac.get_link_status = true;
                 /* guard against interrupt when we're going down */
                 if (!test_bit(__E1000_DOWN, &adapter->state))
                         mod_timer(&adapter->watchdog_timer, jiffies + 1);
         }
 
-        if (enable && !test_bit(__E1000_DOWN, &adapter->state))
-                ew32(IMS, E1000_IMS_OTHER);
+        if (!test_bit(__E1000_DOWN, &adapter->state))
+                ew32(IMS, E1000_IMS_OTHER | IMS_OTHER_MASK);
 
         return IRQ_HANDLED;
 }
@@ -2040,7 +2030,6 @@ static void e1000_configure_msix(struct e1000_adapter *adapter)
                        hw->hw_addr + E1000_EITR_82574(vector));
         else
                 writel(1, hw->hw_addr + E1000_EITR_82574(vector));
-        adapter->eiac_mask |= E1000_IMS_OTHER;
 
         /* Cause Tx interrupts on every write back */
         ivar |= BIT(31);
@@ -2265,7 +2254,8 @@ static void e1000_irq_enable(struct e1000_adapter *adapter)
 
         if (adapter->msix_entries) {
                 ew32(EIAC_82574, adapter->eiac_mask & E1000_EIAC_MASK_82574);
-                ew32(IMS, adapter->eiac_mask | E1000_IMS_LSC);
+                ew32(IMS, adapter->eiac_mask | E1000_IMS_OTHER |
+                     IMS_OTHER_MASK);
         } else if (hw->mac.type >= e1000_pch_lpt) {
                 ew32(IMS, IMS_ENABLE_MASK | E1000_IMS_ECCER);
         } else {
@@ -2333,8 +2323,8 @@ static int e1000_alloc_ring_dma(struct e1000_adapter *adapter,
 {
         struct pci_dev *pdev = adapter->pdev;
 
-        ring->desc = dma_alloc_coherent(&pdev->dev, ring->size, &ring->dma,
-                                        GFP_KERNEL);
+        ring->desc = dma_zalloc_coherent(&pdev->dev, ring->size, &ring->dma,
+                                         GFP_KERNEL);
         if (!ring->desc)
                 return -ENOMEM;
 
@@ -2707,8 +2697,7 @@ static int e1000e_poll(struct napi_struct *napi, int weight)
                 napi_complete_done(napi, work_done);
                 if (!test_bit(__E1000_DOWN, &adapter->state)) {
                         if (adapter->msix_entries)
-                                ew32(IMS, adapter->rx_ring->ims_val |
-                                     E1000_IMS_OTHER);
+                                ew32(IMS, adapter->rx_ring->ims_val);
                         else
                                 e1000_irq_enable(adapter);
                 }
@@ -5101,7 +5090,7 @@ static bool e1000e_has_link(struct e1000_adapter *adapter)
         case e1000_media_type_copper:
                 if (hw->mac.get_link_status) {
                         ret_val = hw->mac.ops.check_for_link(hw);
-                        link_active = ret_val > 0;
+                        link_active = !hw->mac.get_link_status;
                 } else {
                         link_active = true;
                 }
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 0da5aa2c8aba..9fc063af233c 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1888,6 +1888,14 @@ static void ixgbe_dma_sync_frag(struct ixgbe_ring *rx_ring,
                                      ixgbe_rx_pg_size(rx_ring),
                                      DMA_FROM_DEVICE,
                                      IXGBE_RX_DMA_ATTR);
+        } else if (ring_uses_build_skb(rx_ring)) {
+                unsigned long offset = (unsigned long)(skb->data) & ~PAGE_MASK;
+
+                dma_sync_single_range_for_cpu(rx_ring->dev,
+                                              IXGBE_CB(skb)->dma,
+                                              offset,
+                                              skb_headlen(skb),
+                                              DMA_FROM_DEVICE);
         } else {
                 struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
 
diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index a1d7b88cf083..5a1668cdb461 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -7137,6 +7137,7 @@ static void mvpp2_set_rx_mode(struct net_device *dev)
         int id = port->id;
         bool allmulti = dev->flags & IFF_ALLMULTI;
 
+retry:
         mvpp2_prs_mac_promisc_set(priv, id, dev->flags & IFF_PROMISC);
         mvpp2_prs_mac_multi_set(priv, id, MVPP2_PE_MAC_MC_ALL, allmulti);
         mvpp2_prs_mac_multi_set(priv, id, MVPP2_PE_MAC_MC_IP6, allmulti);
@@ -7144,9 +7145,13 @@ static void mvpp2_set_rx_mode(struct net_device *dev)
         /* Remove all port->id's mcast enries */
         mvpp2_prs_mcast_del_all(priv, id);
 
-        if (allmulti && !netdev_mc_empty(dev)) {
-                netdev_for_each_mc_addr(ha, dev)
-                        mvpp2_prs_mac_da_accept(priv, id, ha->addr, true);
+        if (!allmulti) {
+                netdev_for_each_mc_addr(ha, dev) {
+                        if (mvpp2_prs_mac_da_accept(priv, id, ha->addr, true)) {
+                                allmulti = true;
+                                goto retry;
+                        }
+                }
         }
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c
index 0be4575b58a2..fd509160c8f6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.c
@@ -96,10 +96,10 @@ static void print_lyr_2_4_hdrs(struct trace_seq *p,
                                           "%pI4");
                 } else if (ethertype.v == ETH_P_IPV6) {
                         static const struct in6_addr full_ones = {
-                                .in6_u.u6_addr32 = {htonl(0xffffffff),
-                                                    htonl(0xffffffff),
-                                                    htonl(0xffffffff),
-                                                    htonl(0xffffffff)},
+                                .in6_u.u6_addr32 = {__constant_htonl(0xffffffff),
+                                                    __constant_htonl(0xffffffff),
+                                                    __constant_htonl(0xffffffff),
+                                                    __constant_htonl(0xffffffff)},
                         };
                         DECLARE_MASK_VAL(struct in6_addr, src_ipv6);
                         DECLARE_MASK_VAL(struct in6_addr, dst_ipv6);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 47bab842c5ee..da94c8cba5ee 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -1768,13 +1768,16 @@ static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
         param->wq.linear = 1;
 }
 
-static void mlx5e_build_drop_rq_param(struct mlx5e_rq_param *param)
+static void mlx5e_build_drop_rq_param(struct mlx5_core_dev *mdev,
+                                      struct mlx5e_rq_param *param)
 {
         void *rqc = param->rqc;
         void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
 
         MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
         MLX5_SET(wq, wq, log_wq_stride,    ilog2(sizeof(struct mlx5e_rx_wqe)));
+
+        param->wq.buf_numa_node = dev_to_node(&mdev->pdev->dev);
 }
 
 static void mlx5e_build_sq_param_common(struct mlx5e_priv *priv,
@@ -2634,6 +2637,9 @@ static int mlx5e_alloc_drop_cq(struct mlx5_core_dev *mdev,
                                struct mlx5e_cq *cq,
                                struct mlx5e_cq_param *param)
 {
+        param->wq.buf_numa_node = dev_to_node(&mdev->pdev->dev);
+        param->wq.db_numa_node  = dev_to_node(&mdev->pdev->dev);
+
         return mlx5e_alloc_cq_common(mdev, param, cq);
 }
 
@@ -2645,7 +2651,7 @@ static int mlx5e_open_drop_rq(struct mlx5_core_dev *mdev,
         struct mlx5e_cq *cq = &drop_rq->cq;
         int err;
 
-        mlx5e_build_drop_rq_param(&rq_param);
+        mlx5e_build_drop_rq_param(mdev, &rq_param);
 
         err = mlx5e_alloc_drop_cq(mdev, cq, &cq_param);
         if (err)
@@ -2994,8 +3000,8 @@ static int mlx5e_setup_tc_block(struct net_device *dev,
 }
 #endif
 
-int mlx5e_setup_tc(struct net_device *dev, enum tc_setup_type type,
-                   void *type_data)
+static int mlx5e_setup_tc(struct net_device *dev, enum tc_setup_type type,
+                          void *type_data)
 {
         switch (type) {
 #ifdef CONFIG_MLX5_ESWITCH
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 0d4bb0688faa..e5c3ab46a24a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -36,6 +36,7 @@
 #include <linux/tcp.h>
 #include <linux/bpf_trace.h>
 #include <net/busy_poll.h>
+#include <net/ip6_checksum.h>
 #include "en.h"
 #include "en_tc.h"
 #include "eswitch.h"
@@ -546,20 +547,33 @@ bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq)
         return true;
 }
 
+static void mlx5e_lro_update_tcp_hdr(struct mlx5_cqe64 *cqe, struct tcphdr *tcp)
+{
+        u8 l4_hdr_type = get_cqe_l4_hdr_type(cqe);
+        u8 tcp_ack     = (l4_hdr_type == CQE_L4_HDR_TYPE_TCP_ACK_NO_DATA) ||
+                         (l4_hdr_type == CQE_L4_HDR_TYPE_TCP_ACK_AND_DATA);
+
+        tcp->check                      = 0;
+        tcp->psh                        = get_cqe_lro_tcppsh(cqe);
+
+        if (tcp_ack) {
+                tcp->ack                = 1;
+                tcp->ack_seq            = cqe->lro_ack_seq_num;
+                tcp->window             = cqe->lro_tcp_win;
+        }
+}
+
 static void mlx5e_lro_update_hdr(struct sk_buff *skb, struct mlx5_cqe64 *cqe,
                                  u32 cqe_bcnt)
 {
         struct ethhdr   *eth = (struct ethhdr *)(skb->data);
         struct tcphdr   *tcp;
         int network_depth = 0;
+        __wsum check;
         __be16 proto;
         u16 tot_len;
         void *ip_p;
 
-        u8 l4_hdr_type = get_cqe_l4_hdr_type(cqe);
-        u8 tcp_ack = (l4_hdr_type == CQE_L4_HDR_TYPE_TCP_ACK_NO_DATA) ||
-                (l4_hdr_type == CQE_L4_HDR_TYPE_TCP_ACK_AND_DATA);
-
         proto = __vlan_get_protocol(skb, eth->h_proto, &network_depth);
 
         tot_len = cqe_bcnt - network_depth;
@@ -576,23 +590,30 @@ static void mlx5e_lro_update_hdr(struct sk_buff *skb, struct mlx5_cqe64 *cqe,
                 ipv4->check             = 0;
                 ipv4->check             = ip_fast_csum((unsigned char *)ipv4,
                                                        ipv4->ihl);
+
+                mlx5e_lro_update_tcp_hdr(cqe, tcp);
+                check = csum_partial(tcp, tcp->doff * 4,
+                                     csum_unfold((__force __sum16)cqe->check_sum));
+                /* Almost done, don't forget the pseudo header */
+                tcp->check = csum_tcpudp_magic(ipv4->saddr, ipv4->daddr,
+                                               tot_len - sizeof(struct iphdr),
+                                               IPPROTO_TCP, check);
         } else {
+                u16 payload_len = tot_len - sizeof(struct ipv6hdr);
                 struct ipv6hdr *ipv6 = ip_p;
 
                 tcp = ip_p + sizeof(struct ipv6hdr);
                 skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6;
 
                 ipv6->hop_limit         = cqe->lro_min_ttl;
-                ipv6->payload_len       = cpu_to_be16(tot_len -
-                                                      sizeof(struct ipv6hdr));
-        }
-
-        tcp->psh = get_cqe_lro_tcppsh(cqe);
-
-        if (tcp_ack) {
-                tcp->ack                = 1;
-                tcp->ack_seq            = cqe->lro_ack_seq_num;
-                tcp->window             = cqe->lro_tcp_win;
+                ipv6->payload_len       = cpu_to_be16(payload_len);
+
+                mlx5e_lro_update_tcp_hdr(cqe, tcp);
+                check = csum_partial(tcp, tcp->doff * 4,
+                                     csum_unfold((__force __sum16)cqe->check_sum));
+                /* Almost done, don't forget the pseudo header */
+                tcp->check = csum_ipv6_magic(&ipv6->saddr, &ipv6->daddr, payload_len,
+                                             IPPROTO_TCP, check);
         }
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
index 5a4608281f38..707976482c09 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c
@@ -216,7 +216,8 @@ mlx5e_test_loopback_validate(struct sk_buff *skb,
         if (iph->protocol != IPPROTO_UDP)
                 goto out;
 
-        udph = udp_hdr(skb);
+        /* Don't assume skb_transport_header() was set */
+        udph = (struct udphdr *)((u8 *)iph + 4 * iph->ihl);
         if (udph->dest != htons(9))
                 goto out;
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index fd98b0dc610f..fa86a1466718 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -2529,7 +2529,8 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
                         if (tcf_vlan_action(a) == TCA_VLAN_ACT_POP) {
                                 attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
                         } else if (tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) {
-                                if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q))
+                                if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q) ||
+                                    tcf_vlan_push_prio(a))
                                         return -EOPNOTSUPP;
 
                                 attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index 569b42a01026..11b4f1089d1c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -176,7 +176,7 @@ static inline u16 mlx5e_calc_min_inline(enum mlx5_inline_modes mode,
         default:
                 hlen = mlx5e_skb_l2_header_offset(skb);
         }
-        return min_t(u16, hlen, skb->len);
+        return min_t(u16, hlen, skb_headlen(skb));
 }
 
 static inline void mlx5e_tx_skb_pull_inline(unsigned char **skb_data,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 5ecf2cddc16d..c2b1d7d351fc 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1529,6 +1529,10 @@ static void esw_enable_vport(struct mlx5_eswitch *esw, int vport_num,
 
         esw_debug(esw->dev, "Enabling VPORT(%d)\n", vport_num);
 
+        /* Create steering drop counters for ingress and egress ACLs */
+        if (vport_num && esw->mode == SRIOV_LEGACY)
+                esw_vport_create_drop_counters(vport);
+
         /* Restore old vport configuration */
         esw_apply_vport_conf(esw, vport);
 
@@ -1545,10 +1549,6 @@ static void esw_enable_vport(struct mlx5_eswitch *esw, int vport_num,
         if (!vport_num)
                 vport->info.trusted = true;
 
-        /* create steering drop counters for ingress and egress ACLs */
-        if (vport_num && esw->mode == SRIOV_LEGACY)
-                esw_vport_create_drop_counters(vport);
-
         esw_vport_change_handle_locked(vport);
 
         esw->enabled_vports++;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index c025c98700e4..31fc2cfac3b3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -1429,7 +1429,8 @@ static bool check_conflicting_actions(u32 action1, u32 action2)
 
         if (xored_actions & (MLX5_FLOW_CONTEXT_ACTION_DROP  |
                              MLX5_FLOW_CONTEXT_ACTION_ENCAP |
-                             MLX5_FLOW_CONTEXT_ACTION_DECAP))
+                             MLX5_FLOW_CONTEXT_ACTION_DECAP |
+                             MLX5_FLOW_CONTEXT_ACTION_MOD_HDR))
                 return true;
 
         return false;
@@ -1758,8 +1759,11 @@ search_again_locked:
 
         /* Collect all fgs which has a matching match_criteria */
         err = build_match_list(&match_head, ft, spec);
-        if (err)
+        if (err) {
+                if (take_write)
+                        up_write_ref_node(&ft->node);
                 return ERR_PTR(err);
+        }
 
         if (!take_write)
                 up_read_ref_node(&ft->node);
@@ -1768,8 +1772,11 @@ search_again_locked:
                                       dest_num, version);
         free_match_list(&match_head);
         if (!IS_ERR(rule) ||
-            (PTR_ERR(rule) != -ENOENT && PTR_ERR(rule) != -EAGAIN))
+            (PTR_ERR(rule) != -ENOENT && PTR_ERR(rule) != -EAGAIN)) {
+                if (take_write)
+                        up_write_ref_node(&ft->node);
                 return rule;
+        }
 
         if (!take_write) {
                 nested_down_write_ref_node(&ft->node, FS_LOCK_GRANDPARENT);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index 21d29f7936f6..d39b0b7011b2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -124,7 +124,7 @@ void mlx5_enter_error_state(struct mlx5_core_dev *dev, bool force)
                 trigger_cmd_completions(dev);
         }
 
-        mlx5_core_event(dev, MLX5_DEV_EVENT_SYS_ERROR, 0);
+        mlx5_core_event(dev, MLX5_DEV_EVENT_SYS_ERROR, 1);
         mlx5_core_err(dev, "end\n");
 
 unlock:
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
index e159243e0fcf..857035583ccd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
@@ -34,6 +34,7 @@
 #include <linux/highmem.h>
 #include <rdma/mlx5-abi.h>
 #include "en.h"
+#include "clock.h"
 
 enum {
         MLX5_CYCLES_SHIFT       = 23
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 2ef641c91c26..ae391e4b7070 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -551,7 +551,7 @@ static int handle_hca_cap(struct mlx5_core_dev *dev)
                 MLX5_SET(cmd_hca_cap,
                          set_hca_cap,
                          cache_line_128byte,
-                         cache_line_size() == 128 ? 1 : 0);
+                         cache_line_size() >= 128 ? 1 : 0);
 
         if (MLX5_CAP_GEN_MAX(dev, dct))
                 MLX5_SET(cmd_hca_cap, set_hca_cap, dct, 1);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c
index b698fb481b2e..996dc099cd58 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c
@@ -443,6 +443,17 @@ int mlxsw_afa_block_jump(struct mlxsw_afa_block *block, u16 group_id)
 }
 EXPORT_SYMBOL(mlxsw_afa_block_jump);
 
+int mlxsw_afa_block_terminate(struct mlxsw_afa_block *block)
+{
+        if (block->finished)
+                return -EINVAL;
+        mlxsw_afa_set_goto_set(block->cur_set,
+                               MLXSW_AFA_SET_GOTO_BINDING_CMD_TERM, 0);
+        block->finished = true;
+        return 0;
+}
+EXPORT_SYMBOL(mlxsw_afa_block_terminate);
+
 static struct mlxsw_afa_fwd_entry *
 mlxsw_afa_fwd_entry_create(struct mlxsw_afa *mlxsw_afa, u8 local_port)
 {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h
index 43132293475c..b91f2b0829b0 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h
@@ -65,6 +65,7 @@ char *mlxsw_afa_block_first_set(struct mlxsw_afa_block *block);
 u32 mlxsw_afa_block_first_set_kvdl_index(struct mlxsw_afa_block *block);
 int mlxsw_afa_block_continue(struct mlxsw_afa_block *block);
 int mlxsw_afa_block_jump(struct mlxsw_afa_block *block, u16 group_id);
+int mlxsw_afa_block_terminate(struct mlxsw_afa_block *block);
 int mlxsw_afa_block_append_drop(struct mlxsw_afa_block *block);
 int mlxsw_afa_block_append_trap(struct mlxsw_afa_block *block, u16 trap_id);
 int mlxsw_afa_block_append_trap_and_forward(struct mlxsw_afa_block *block,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.h b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.h
index f6963b0b4a55..122506daa586 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.h
@@ -107,20 +107,20 @@ static const struct mlxsw_afk_element_info mlxsw_afk_element_infos[] = {
         MLXSW_AFK_ELEMENT_INFO_U32(VID, 0x10, 8, 12),
         MLXSW_AFK_ELEMENT_INFO_U32(PCP, 0x10, 20, 3),
         MLXSW_AFK_ELEMENT_INFO_U32(TCP_FLAGS, 0x10, 23, 9),
-        MLXSW_AFK_ELEMENT_INFO_U32(IP_TTL_, 0x14, 0, 8),
-        MLXSW_AFK_ELEMENT_INFO_U32(IP_ECN, 0x14, 9, 2),
-        MLXSW_AFK_ELEMENT_INFO_U32(IP_DSCP, 0x14, 11, 6),
-        MLXSW_AFK_ELEMENT_INFO_U32(SRC_IP4, 0x18, 0, 32),
-        MLXSW_AFK_ELEMENT_INFO_U32(DST_IP4, 0x1C, 0, 32),
-        MLXSW_AFK_ELEMENT_INFO_BUF(SRC_IP6_HI, 0x18, 8),
-        MLXSW_AFK_ELEMENT_INFO_BUF(SRC_IP6_LO, 0x20, 8),
-        MLXSW_AFK_ELEMENT_INFO_BUF(DST_IP6_HI, 0x28, 8),
-        MLXSW_AFK_ELEMENT_INFO_BUF(DST_IP6_LO, 0x30, 8),
         MLXSW_AFK_ELEMENT_INFO_U32(DST_L4_PORT, 0x14, 0, 16),
         MLXSW_AFK_ELEMENT_INFO_U32(SRC_L4_PORT, 0x14, 16, 16),
+        MLXSW_AFK_ELEMENT_INFO_U32(IP_TTL_, 0x18, 0, 8),
+        MLXSW_AFK_ELEMENT_INFO_U32(IP_ECN, 0x18, 9, 2),
+        MLXSW_AFK_ELEMENT_INFO_U32(IP_DSCP, 0x18, 11, 6),
+        MLXSW_AFK_ELEMENT_INFO_U32(SRC_IP4, 0x20, 0, 32),
+        MLXSW_AFK_ELEMENT_INFO_U32(DST_IP4, 0x24, 0, 32),
+        MLXSW_AFK_ELEMENT_INFO_BUF(SRC_IP6_HI, 0x20, 8),
+        MLXSW_AFK_ELEMENT_INFO_BUF(SRC_IP6_LO, 0x28, 8),
+        MLXSW_AFK_ELEMENT_INFO_BUF(DST_IP6_HI, 0x30, 8),
+        MLXSW_AFK_ELEMENT_INFO_BUF(DST_IP6_LO, 0x38, 8),
 };
 
-#define MLXSW_AFK_ELEMENT_STORAGE_SIZE 0x38
+#define MLXSW_AFK_ELEMENT_STORAGE_SIZE 0x40
 
 struct mlxsw_afk_element_inst { /* element instance in actual block */
         const struct mlxsw_afk_element_info *info;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 3dcc58d61506..bf400c75fcc8 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -655,13 +655,17 @@ static int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu)
 }
 
 static struct mlxsw_sp_span_inspected_port *
-mlxsw_sp_span_entry_bound_port_find(struct mlxsw_sp_port *port,
-                                    struct mlxsw_sp_span_entry *span_entry)
+mlxsw_sp_span_entry_bound_port_find(struct mlxsw_sp_span_entry *span_entry,
+                                    enum mlxsw_sp_span_type type,
+                                    struct mlxsw_sp_port *port,
+                                    bool bind)
 {
         struct mlxsw_sp_span_inspected_port *p;
 
         list_for_each_entry(p, &span_entry->bound_ports_list, list)
-                if (port->local_port == p->local_port)
+                if (type == p->type &&
+                    port->local_port == p->local_port &&
+                    bind == p->bound)
                         return p;
         return NULL;
 }
@@ -691,8 +695,22 @@ mlxsw_sp_span_inspected_port_add(struct mlxsw_sp_port *port,
         struct mlxsw_sp_span_inspected_port *inspected_port;
         struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
         char sbib_pl[MLXSW_REG_SBIB_LEN];
+        int i;
         int err;
 
+        /* A given (source port, direction) can only be bound to one analyzer,
+         * so if a binding is requested, check for conflicts.
+         */
+        if (bind)
+                for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
+                        struct mlxsw_sp_span_entry *curr =
+                                &mlxsw_sp->span.entries[i];
+
+                        if (mlxsw_sp_span_entry_bound_port_find(curr, type,
+                                                                port, bind))
+                                return -EEXIST;
+                }
+
         /* if it is an egress SPAN, bind a shared buffer to it */
         if (type == MLXSW_SP_SPAN_EGRESS) {
                 u32 buffsize = mlxsw_sp_span_mtu_to_buffsize(mlxsw_sp,
@@ -720,6 +738,7 @@ mlxsw_sp_span_inspected_port_add(struct mlxsw_sp_port *port,
         }
         inspected_port->local_port = port->local_port;
         inspected_port->type = type;
+        inspected_port->bound = bind;
         list_add_tail(&inspected_port->list, &span_entry->bound_ports_list);
 
         return 0;
@@ -746,7 +765,8 @@ mlxsw_sp_span_inspected_port_del(struct mlxsw_sp_port *port,
         struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
         char sbib_pl[MLXSW_REG_SBIB_LEN];
 
-        inspected_port = mlxsw_sp_span_entry_bound_port_find(port, span_entry);
+        inspected_port = mlxsw_sp_span_entry_bound_port_find(span_entry, type,
+                                                             port, bind);
         if (!inspected_port)
                 return;
 
@@ -1459,6 +1479,7 @@ mlxsw_sp_port_vlan_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
         }
 
         mlxsw_sp_port_vlan->mlxsw_sp_port = mlxsw_sp_port;
+        mlxsw_sp_port_vlan->ref_count = 1;
         mlxsw_sp_port_vlan->vid = vid;
         list_add(&mlxsw_sp_port_vlan->list, &mlxsw_sp_port->vlans_list);
 
@@ -1486,8 +1507,10 @@ mlxsw_sp_port_vlan_get(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
 
         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
-        if (mlxsw_sp_port_vlan)
+        if (mlxsw_sp_port_vlan) {
+                mlxsw_sp_port_vlan->ref_count++;
                 return mlxsw_sp_port_vlan;
+        }
 
         return mlxsw_sp_port_vlan_create(mlxsw_sp_port, vid);
 }
@@ -1496,6 +1519,9 @@ void mlxsw_sp_port_vlan_put(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
 {
         struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
 
+        if (--mlxsw_sp_port_vlan->ref_count != 0)
+                return;
+
         if (mlxsw_sp_port_vlan->bridge_port)
                 mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
         else if (fid)
@@ -4207,13 +4233,12 @@ static struct devlink_resource_ops mlxsw_sp_resource_kvd_hash_double_ops = {
         .size_validate = mlxsw_sp_resource_kvd_hash_double_size_validate,
 };
 
-static struct devlink_resource_size_params mlxsw_sp_kvd_size_params;
-static struct devlink_resource_size_params mlxsw_sp_linear_size_params;
-static struct devlink_resource_size_params mlxsw_sp_hash_single_size_params;
-static struct devlink_resource_size_params mlxsw_sp_hash_double_size_params;
-
 static void
-mlxsw_sp_resource_size_params_prepare(struct mlxsw_core *mlxsw_core)
+mlxsw_sp_resource_size_params_prepare(struct mlxsw_core *mlxsw_core,
+                                      struct devlink_resource_size_params *kvd_size_params,
+                                      struct devlink_resource_size_params *linear_size_params,
+                                      struct devlink_resource_size_params *hash_double_size_params,
+                                      struct devlink_resource_size_params *hash_single_size_params)
 {
         u32 single_size_min = MLXSW_CORE_RES_GET(mlxsw_core,
                                                  KVD_SINGLE_MIN_SIZE);
@@ -4222,37 +4247,35 @@ mlxsw_sp_resource_size_params_prepare(struct mlxsw_core *mlxsw_core)
         u32 kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE);
         u32 linear_size_min = 0;
 
-        /* KVD top resource */
-        mlxsw_sp_kvd_size_params.size_min = kvd_size;
-        mlxsw_sp_kvd_size_params.size_max = kvd_size;
-        mlxsw_sp_kvd_size_params.size_granularity = MLXSW_SP_KVD_GRANULARITY;
-        mlxsw_sp_kvd_size_params.unit = DEVLINK_RESOURCE_UNIT_ENTRY;
-
-        /* Linear part init */
-        mlxsw_sp_linear_size_params.size_min = linear_size_min;
-        mlxsw_sp_linear_size_params.size_max = kvd_size - single_size_min -
-                                               double_size_min;
-        mlxsw_sp_linear_size_params.size_granularity = MLXSW_SP_KVD_GRANULARITY;
-        mlxsw_sp_linear_size_params.unit = DEVLINK_RESOURCE_UNIT_ENTRY;
-
-        /* Hash double part init */
-        mlxsw_sp_hash_double_size_params.size_min = double_size_min;
-        mlxsw_sp_hash_double_size_params.size_max = kvd_size - single_size_min -
-                                                    linear_size_min;
-        mlxsw_sp_hash_double_size_params.size_granularity = MLXSW_SP_KVD_GRANULARITY;
-        mlxsw_sp_hash_double_size_params.unit = DEVLINK_RESOURCE_UNIT_ENTRY;
-
-        /* Hash single part init */
-        mlxsw_sp_hash_single_size_params.size_min = single_size_min;
-        mlxsw_sp_hash_single_size_params.size_max = kvd_size - double_size_min -
-                                                    linear_size_min;
-        mlxsw_sp_hash_single_size_params.size_granularity = MLXSW_SP_KVD_GRANULARITY;
-        mlxsw_sp_hash_single_size_params.unit = DEVLINK_RESOURCE_UNIT_ENTRY;
+        devlink_resource_size_params_init(kvd_size_params, kvd_size, kvd_size,
+                                          MLXSW_SP_KVD_GRANULARITY,
+                                          DEVLINK_RESOURCE_UNIT_ENTRY);
+        devlink_resource_size_params_init(linear_size_params, linear_size_min,
+                                          kvd_size - single_size_min -
+                                          double_size_min,
+                                          MLXSW_SP_KVD_GRANULARITY,
+                                          DEVLINK_RESOURCE_UNIT_ENTRY);
+        devlink_resource_size_params_init(hash_double_size_params,
+                                          double_size_min,
+                                          kvd_size - single_size_min -
+                                          linear_size_min,
+                                          MLXSW_SP_KVD_GRANULARITY,
+                                          DEVLINK_RESOURCE_UNIT_ENTRY);
+        devlink_resource_size_params_init(hash_single_size_params,
+                                          single_size_min,
+                                          kvd_size - double_size_min -
+                                          linear_size_min,
+                                          MLXSW_SP_KVD_GRANULARITY,
+                                          DEVLINK_RESOURCE_UNIT_ENTRY);
 }
 
 static int mlxsw_sp_resources_register(struct mlxsw_core *mlxsw_core)
 {
         struct devlink *devlink = priv_to_devlink(mlxsw_core);
+        struct devlink_resource_size_params hash_single_size_params;
+        struct devlink_resource_size_params hash_double_size_params;
+        struct devlink_resource_size_params linear_size_params;
+        struct devlink_resource_size_params kvd_size_params;
         u32 kvd_size, single_size, double_size, linear_size;
         const struct mlxsw_config_profile *profile;
         int err;
@@ -4261,13 +4284,17 @@ static int mlxsw_sp_resources_register(struct mlxsw_core *mlxsw_core)
         if (!MLXSW_CORE_RES_VALID(mlxsw_core, KVD_SIZE))
                 return -EIO;
 
-        mlxsw_sp_resource_size_params_prepare(mlxsw_core);
+        mlxsw_sp_resource_size_params_prepare(mlxsw_core, &kvd_size_params,
+                                              &linear_size_params,
+                                              &hash_double_size_params,
+                                              &hash_single_size_params);
+
         kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE);
         err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD,
                                         true, kvd_size,
                                         MLXSW_SP_RESOURCE_KVD,
                                         DEVLINK_RESOURCE_ID_PARENT_TOP,
-                                        &mlxsw_sp_kvd_size_params,
+                                        &kvd_size_params,
                                         &mlxsw_sp_resource_kvd_ops);
         if (err)
                 return err;
@@ -4277,7 +4304,7 @@ static int mlxsw_sp_resources_register(struct mlxsw_core *mlxsw_core)
                                         false, linear_size,
                                         MLXSW_SP_RESOURCE_KVD_LINEAR,
                                         MLXSW_SP_RESOURCE_KVD,
-                                        &mlxsw_sp_linear_size_params,
+                                        &linear_size_params,
                                         &mlxsw_sp_resource_kvd_linear_ops);
         if (err)
                 return err;
@@ -4291,7 +4318,7 @@ static int mlxsw_sp_resources_register(struct mlxsw_core *mlxsw_core)
                                         false, double_size,
                                         MLXSW_SP_RESOURCE_KVD_HASH_DOUBLE,
                                         MLXSW_SP_RESOURCE_KVD,
-                                        &mlxsw_sp_hash_double_size_params,
+                                        &hash_double_size_params,
                                         &mlxsw_sp_resource_kvd_hash_double_ops);
         if (err)
                 return err;
@@ -4301,7 +4328,7 @@ static int mlxsw_sp_resources_register(struct mlxsw_core *mlxsw_core)
                                         false, single_size,
                                         MLXSW_SP_RESOURCE_KVD_HASH_SINGLE,
                                         MLXSW_SP_RESOURCE_KVD,
-                                        &mlxsw_sp_hash_single_size_params,
+                                        &hash_single_size_params,
                                         &mlxsw_sp_resource_kvd_hash_single_ops);
         if (err)
                 return err;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index bdd8f94a452c..92064db2ae44 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -120,6 +120,9 @@ struct mlxsw_sp_span_inspected_port {
         struct list_head list;
         enum mlxsw_sp_span_type type;
         u8 local_port;
+
+        /* Whether this is a directly bound mirror (port-to-port) or an ACL. */
+        bool bound;
 };
 
 struct mlxsw_sp_span_entry {
@@ -211,6 +214,7 @@ struct mlxsw_sp_port_vlan {
         struct list_head list;
         struct mlxsw_sp_port *mlxsw_sp_port;
         struct mlxsw_sp_fid *fid;
+        unsigned int ref_count;
         u16 vid;
         struct mlxsw_sp_bridge_port *bridge_port;
         struct list_head bridge_vlan_node;
@@ -552,6 +556,7 @@ void mlxsw_sp_acl_rulei_keymask_buf(struct mlxsw_sp_acl_rule_info *rulei,
 int mlxsw_sp_acl_rulei_act_continue(struct mlxsw_sp_acl_rule_info *rulei);
 int mlxsw_sp_acl_rulei_act_jump(struct mlxsw_sp_acl_rule_info *rulei,
                                 u16 group_id);
+int mlxsw_sp_acl_rulei_act_terminate(struct mlxsw_sp_acl_rule_info *rulei);
 int mlxsw_sp_acl_rulei_act_drop(struct mlxsw_sp_acl_rule_info *rulei);
 int mlxsw_sp_acl_rulei_act_trap(struct mlxsw_sp_acl_rule_info *rulei);
 int mlxsw_sp_acl_rulei_act_mirror(struct mlxsw_sp *mlxsw_sp,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
index 0897a5435cc2..92d90ed7207e 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
@@ -528,6 +528,11 @@ int mlxsw_sp_acl_rulei_act_jump(struct mlxsw_sp_acl_rule_info *rulei,
         return mlxsw_afa_block_jump(rulei->act_block, group_id);
 }
 
+int mlxsw_sp_acl_rulei_act_terminate(struct mlxsw_sp_acl_rule_info *rulei)
+{
+        return mlxsw_afa_block_terminate(rulei->act_block);
+}
+
 int mlxsw_sp_acl_rulei_act_drop(struct mlxsw_sp_acl_rule_info *rulei)
 {
         return mlxsw_afa_block_append_drop(rulei->act_block);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
index 93728c694e6d..0a9adc5962fb 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
@@ -385,13 +385,13 @@ static const struct mlxsw_sp_sb_cm mlxsw_sp_sb_cms_egress[] = {
 
 static const struct mlxsw_sp_sb_cm mlxsw_sp_cpu_port_sb_cms[] = {
         MLXSW_SP_CPU_PORT_SB_CM,
+        MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, 0),
+        MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, 0),
+        MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, 0),
+        MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, 0),
+        MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, 0),
         MLXSW_SP_CPU_PORT_SB_CM,
-        MLXSW_SP_CPU_PORT_SB_CM,
-        MLXSW_SP_CPU_PORT_SB_CM,
-        MLXSW_SP_CPU_PORT_SB_CM,
-        MLXSW_SP_CPU_PORT_SB_CM,
-        MLXSW_SP_CPU_PORT_SB_CM,
-        MLXSW_SP_SB_CM(10000, 0, 0),
+        MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, 0),
         MLXSW_SP_CPU_PORT_SB_CM,
         MLXSW_SP_CPU_PORT_SB_CM,
         MLXSW_SP_CPU_PORT_SB_CM,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c
index bbd238e50f05..54262af4e98f 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c
@@ -112,11 +112,11 @@ static const int mlxsw_sp_sfgc_bc_packet_types[MLXSW_REG_SFGC_TYPE_MAX] = {
         [MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_NON_IP]     = 1,
         [MLXSW_REG_SFGC_TYPE_IPV4_LINK_LOCAL]                   = 1,
         [MLXSW_REG_SFGC_TYPE_IPV6_ALL_HOST]                     = 1,
+        [MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_IPV6]       = 1,
 };
 
 static const int mlxsw_sp_sfgc_mc_packet_types[MLXSW_REG_SFGC_TYPE_MAX] = {
         [MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_IPV4]       = 1,
-        [MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_IPV6]       = 1,
 };
 
 static const int *mlxsw_sp_packet_type_sfgc_types[] = {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
index 6ce00e28d4ea..89dbf569dff5 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
@@ -65,7 +65,7 @@ static int mlxsw_sp_flower_parse_actions(struct mlxsw_sp *mlxsw_sp,
         tcf_exts_to_list(exts, &actions);
         list_for_each_entry(a, &actions, list) {
                 if (is_tcf_gact_ok(a)) {
-                        err = mlxsw_sp_acl_rulei_act_continue(rulei);
+                        err = mlxsw_sp_acl_rulei_act_terminate(rulei);
                         if (err)
                                 return err;
                 } else if (is_tcf_gact_shot(a)) {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index f0b25baba09a..f7948e983637 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -788,6 +788,9 @@ static struct mlxsw_sp_vr *mlxsw_sp_vr_create(struct mlxsw_sp *mlxsw_sp,
                                               u32 tb_id,
                                               struct netlink_ext_ack *extack)
 {
+        struct mlxsw_sp_mr_table *mr4_table;
+        struct mlxsw_sp_fib *fib4;
+        struct mlxsw_sp_fib *fib6;
         struct mlxsw_sp_vr *vr;
         int err;
 
@@ -796,29 +799,30 @@ static struct mlxsw_sp_vr *mlxsw_sp_vr_create(struct mlxsw_sp *mlxsw_sp,
                 NL_SET_ERR_MSG(extack, "spectrum: Exceeded number of supported virtual routers");
                 return ERR_PTR(-EBUSY);
         }
-        vr->fib4 = mlxsw_sp_fib_create(mlxsw_sp, vr, MLXSW_SP_L3_PROTO_IPV4);
-        if (IS_ERR(vr->fib4))
-                return ERR_CAST(vr->fib4);
-        vr->fib6 = mlxsw_sp_fib_create(mlxsw_sp, vr, MLXSW_SP_L3_PROTO_IPV6);
-        if (IS_ERR(vr->fib6)) {
-                err = PTR_ERR(vr->fib6);
+        fib4 = mlxsw_sp_fib_create(mlxsw_sp, vr, MLXSW_SP_L3_PROTO_IPV4);
+        if (IS_ERR(fib4))
+                return ERR_CAST(fib4);
+        fib6 = mlxsw_sp_fib_create(mlxsw_sp, vr, MLXSW_SP_L3_PROTO_IPV6);
+        if (IS_ERR(fib6)) {
+                err = PTR_ERR(fib6);
                 goto err_fib6_create;
         }
-        vr->mr4_table = mlxsw_sp_mr_table_create(mlxsw_sp, vr->id,
-                                                 MLXSW_SP_L3_PROTO_IPV4);
-        if (IS_ERR(vr->mr4_table)) {
-                err = PTR_ERR(vr->mr4_table);
+        mr4_table = mlxsw_sp_mr_table_create(mlxsw_sp, vr->id,
+                                             MLXSW_SP_L3_PROTO_IPV4);
+        if (IS_ERR(mr4_table)) {
+                err = PTR_ERR(mr4_table);
                 goto err_mr_table_create;
         }
+        vr->fib4 = fib4;
+        vr->fib6 = fib6;
+        vr->mr4_table = mr4_table;
         vr->tb_id = tb_id;
         return vr;
 
 err_mr_table_create:
-        mlxsw_sp_fib_destroy(mlxsw_sp, vr->fib6);
-        vr->fib6 = NULL;
+        mlxsw_sp_fib_destroy(mlxsw_sp, fib6);
 err_fib6_create:
-        mlxsw_sp_fib_destroy(mlxsw_sp, vr->fib4);
-        vr->fib4 = NULL;
+        mlxsw_sp_fib_destroy(mlxsw_sp, fib4);
         return ERR_PTR(err);
 }
 
@@ -3790,6 +3794,9 @@ mlxsw_sp_fib4_entry_offload_unset(struct mlxsw_sp_fib_entry *fib_entry)
         struct mlxsw_sp_nexthop_group *nh_grp = fib_entry->nh_group;
         int i;
 
+        if (!list_is_singular(&nh_grp->fib_list))
+                return;
+
         for (i = 0; i < nh_grp->count; i++) {
                 struct mlxsw_sp_nexthop *nh = &nh_grp->nexthops[i];
 
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 593ad31be749..161bcdc012f0 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -1203,6 +1203,7 @@ static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
                                      bool dynamic)
 {
         char *sfd_pl;
+        u8 num_rec;
         int err;
 
         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
@@ -1212,9 +1213,16 @@ static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
         mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
                               mac, fid, action, local_port);
+        num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
-        kfree(sfd_pl);
+        if (err)
+                goto out;
+
+        if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
+                err = -EBUSY;
 
+out:
+        kfree(sfd_pl);
         return err;
 }
 
@@ -1239,6 +1247,7 @@ static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
                                        bool adding, bool dynamic)
 {
         char *sfd_pl;
+        u8 num_rec;
         int err;
 
         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
@@ -1249,9 +1258,16 @@ static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
         mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
                                   mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
                                   lag_vid, lag_id);
+        num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
-        kfree(sfd_pl);
+        if (err)
+                goto out;
+
+        if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
+                err = -EBUSY;
 
+out:
+        kfree(sfd_pl);
         return err;
 }
 
@@ -1296,6 +1312,7 @@ static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
                                 u16 fid, u16 mid_idx, bool adding)
 {
         char *sfd_pl;
+        u8 num_rec;
         int err;
 
         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
@@ -1305,7 +1322,15 @@ static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
         mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid,
                               MLXSW_REG_SFD_REC_ACTION_NOP, mid_idx);
+        num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
+        if (err)
+                goto out;
+
+        if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
+                err = -EBUSY;
+
+out:
         kfree(sfd_pl);
         return err;
 }
diff --git a/drivers/net/ethernet/natsemi/Kconfig b/drivers/net/ethernet/natsemi/Kconfig
index a10ef50e4f12..017fb2322589 100644
--- a/drivers/net/ethernet/natsemi/Kconfig
+++ b/drivers/net/ethernet/natsemi/Kconfig
@@ -1,16 +1,16 @@
 #
-# National Semi-conductor device configuration
+# National Semiconductor device configuration
 #
 
 config NET_VENDOR_NATSEMI
-        bool "National Semi-conductor devices"
+        bool "National Semiconductor devices"
         default y
         ---help---
           If you have a network (Ethernet) card belonging to this class, say Y.
 
           Note that the answer to this question doesn't directly affect the
           kernel: saying N will just cause the configurator to skip all
-          the questions about National Semi-conductor devices. If you say Y,
+          the questions about National Semiconductor devices. If you say Y,
           you will be asked for your specific card in the following questions.
 
 if NET_VENDOR_NATSEMI
diff --git a/drivers/net/ethernet/natsemi/Makefile b/drivers/net/ethernet/natsemi/Makefile
index cc664977596e..a759aa09ef59 100644
--- a/drivers/net/ethernet/natsemi/Makefile
+++ b/drivers/net/ethernet/natsemi/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 #
-# Makefile for the National Semi-conductor Sonic devices.
+# Makefile for the National Semiconductor Sonic devices.
 #
 
 obj-$(CONFIG_MACSONIC) += macsonic.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.c b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
index 6f546e869d8d..00f41c145d4d 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
@@ -2480,7 +2480,10 @@ int qed_cxt_free_proto_ilt(struct qed_hwfn *p_hwfn, enum protocol_type proto)
         if (rc)
                 return rc;
 
-        /* Free Task CXT */
+        /* Free Task CXT ( Intentionally RoCE as task-id is shared between
+         * RoCE and iWARP )
+         */
+        proto = PROTOCOLID_ROCE;
         rc = qed_cxt_free_ilt_range(p_hwfn, QED_ELEM_TASK, 0,
                                     qed_cxt_get_proto_tid_count(p_hwfn, proto));
         if (rc)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
index ca4a81dc1ace..d5d02be72947 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -1703,6 +1703,13 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn,
         iph = (struct iphdr *)((u8 *)(ethh) + eth_hlen);
 
         if (eth_type == ETH_P_IP) {
+                if (iph->protocol != IPPROTO_TCP) {
+                        DP_NOTICE(p_hwfn,
+                                  "Unexpected ip protocol on ll2 %x\n",
+                                  iph->protocol);
+                        return -EINVAL;
+                }
+
                 cm_info->local_ip[0] = ntohl(iph->daddr);
                 cm_info->remote_ip[0] = ntohl(iph->saddr);
                 cm_info->ip_version = TCP_IPV4;
@@ -1711,6 +1718,14 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn,
                 *payload_len = ntohs(iph->tot_len) - ip_hlen;
         } else if (eth_type == ETH_P_IPV6) {
                 ip6h = (struct ipv6hdr *)iph;
+
+                if (ip6h->nexthdr != IPPROTO_TCP) {
+                        DP_NOTICE(p_hwfn,
+                                  "Unexpected ip protocol on ll2 %x\n",
+                                  iph->protocol);
+                        return -EINVAL;
+                }
+
                 for (i = 0; i < 4; i++) {
                         cm_info->local_ip[i] =
                             ntohl(ip6h->daddr.in6_u.u6_addr32[i]);
@@ -1928,8 +1943,8 @@ qed_iwarp_update_fpdu_length(struct qed_hwfn *p_hwfn,
                 /* Missing lower byte is now available */
                 mpa_len = fpdu->fpdu_length | *mpa_data;
                 fpdu->fpdu_length = QED_IWARP_FPDU_LEN_WITH_PAD(mpa_len);
-                fpdu->mpa_frag_len = fpdu->fpdu_length;
                 /* one byte of hdr */
+                fpdu->mpa_frag_len = 1;
                 fpdu->incomplete_bytes = fpdu->fpdu_length - 1;
                 DP_VERBOSE(p_hwfn,
                            QED_MSG_RDMA,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.c b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
index 5d040b873137..a411f9c702a1 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_rdma.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
@@ -379,6 +379,7 @@ static void qed_rdma_free(struct qed_hwfn *p_hwfn)
         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Freeing RDMA\n");
 
         qed_rdma_free_reserved_lkey(p_hwfn);
+        qed_cxt_free_proto_ilt(p_hwfn, p_hwfn->p_rdma_info->proto);
         qed_rdma_resc_free(p_hwfn);
 }
 
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 2db70eabddfe..a01e7d6e5442 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -288,7 +288,7 @@ int __init qede_init(void)
         }
 
         /* Must register notifier before pci ops, since we might miss
-         * interface rename after pci probe and netdev registeration.
+         * interface rename after pci probe and netdev registration.
          */
         ret = register_netdevice_notifier(&qede_netdev_notifier);
         if (ret) {
@@ -988,7 +988,7 @@ static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
         if (rc)
                 goto err3;
 
-        /* Prepare the lock prior to the registeration of the netdev,
+        /* Prepare the lock prior to the registration of the netdev,
          * as once it's registered we might reach flows requiring it
          * [it's even possible to reach a flow needing it directly
          * from there, although it's unlikely].
@@ -2067,8 +2067,6 @@ static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
         link_params.link_up = true;
         edev->ops->common->set_link(edev->cdev, &link_params);
 
-        qede_rdma_dev_event_open(edev);
-
         edev->state = QEDE_STATE_OPEN;
 
         DP_INFO(edev, "Ending successfully qede load\n");
@@ -2169,12 +2167,14 @@ static void qede_link_update(void *dev, struct qed_link_output *link)
                         DP_NOTICE(edev, "Link is up\n");
                         netif_tx_start_all_queues(edev->ndev);
                         netif_carrier_on(edev->ndev);
+                        qede_rdma_dev_event_open(edev);
                 }
         } else {
                 if (netif_carrier_ok(edev->ndev)) {
                         DP_NOTICE(edev, "Link is down\n");
                         netif_tx_disable(edev->ndev);
                         netif_carrier_off(edev->ndev);
+                        qede_rdma_dev_event_close(edev);
                 }
         }
 }
diff --git a/drivers/net/ethernet/qlogic/qede/qede_ptp.c b/drivers/net/ethernet/qlogic/qede/qede_ptp.c
index 9b2280badaf7..02adb513f475 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_ptp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_ptp.c
@@ -485,7 +485,7 @@ int qede_ptp_enable(struct qede_dev *edev, bool init_tc)
         ptp->clock = ptp_clock_register(&ptp->clock_info, &edev->pdev->dev);
         if (IS_ERR(ptp->clock)) {
                 rc = -EINVAL;
-                DP_ERR(edev, "PTP clock registeration failed\n");
+                DP_ERR(edev, "PTP clock registration failed\n");
                 goto err2;
         }
 
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-mac.c b/drivers/net/ethernet/qualcomm/emac/emac-mac.c
index 9cbb27263742..d5a32b7c7dc5 100644
--- a/drivers/net/ethernet/qualcomm/emac/emac-mac.c
+++ b/drivers/net/ethernet/qualcomm/emac/emac-mac.c
@@ -1194,9 +1194,9 @@ void emac_mac_tx_process(struct emac_adapter *adpt, struct emac_tx_queue *tx_q)
         while (tx_q->tpd.consume_idx != hw_consume_idx) {
                 tpbuf = GET_TPD_BUFFER(tx_q, tx_q->tpd.consume_idx);
                 if (tpbuf->dma_addr) {
-                        dma_unmap_single(adpt->netdev->dev.parent,
-                                         tpbuf->dma_addr, tpbuf->length,
-                                         DMA_TO_DEVICE);
+                        dma_unmap_page(adpt->netdev->dev.parent,
+                                       tpbuf->dma_addr, tpbuf->length,
+                                       DMA_TO_DEVICE);
                         tpbuf->dma_addr = 0;
                 }
 
@@ -1353,9 +1353,11 @@ static void emac_tx_fill_tpd(struct emac_adapter *adpt,
 
                 tpbuf = GET_TPD_BUFFER(tx_q, tx_q->tpd.produce_idx);
                 tpbuf->length = mapped_len;
-                tpbuf->dma_addr = dma_map_single(adpt->netdev->dev.parent,
-                                                 skb->data, tpbuf->length,
-                                                 DMA_TO_DEVICE);
+                tpbuf->dma_addr = dma_map_page(adpt->netdev->dev.parent,
+                                               virt_to_page(skb->data),
+                                               offset_in_page(skb->data),
+                                               tpbuf->length,
+                                               DMA_TO_DEVICE);
                 ret = dma_mapping_error(adpt->netdev->dev.parent,
                                         tpbuf->dma_addr);
                 if (ret)
@@ -1371,9 +1373,12 @@ static void emac_tx_fill_tpd(struct emac_adapter *adpt,
         if (mapped_len < len) {
                 tpbuf = GET_TPD_BUFFER(tx_q, tx_q->tpd.produce_idx);
                 tpbuf->length = len - mapped_len;
-                tpbuf->dma_addr = dma_map_single(adpt->netdev->dev.parent,
-                                                 skb->data + mapped_len,
-                                                 tpbuf->length, DMA_TO_DEVICE);
+                tpbuf->dma_addr = dma_map_page(adpt->netdev->dev.parent,
+                                               virt_to_page(skb->data +
+                                                            mapped_len),
+                                               offset_in_page(skb->data +
+                                                              mapped_len),
+                                               tpbuf->length, DMA_TO_DEVICE);
                 ret = dma_mapping_error(adpt->netdev->dev.parent,
                                         tpbuf->dma_addr);
                 if (ret)
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
index 7e7704daf5f1..c4949183eef3 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
@@ -43,12 +43,6 @@
 
 /* Local Definitions and Declarations */
 
-struct rmnet_walk_data {
-        struct net_device *real_dev;
-        struct list_head *head;
-        struct rmnet_port *port;
-};
-
 static int rmnet_is_real_dev_registered(const struct net_device *real_dev)
 {
         return rcu_access_pointer(real_dev->rx_handler) == rmnet_rx_handler;
@@ -112,17 +106,14 @@ static int rmnet_register_real_device(struct net_device *real_dev)
 static void rmnet_unregister_bridge(struct net_device *dev,
                                     struct rmnet_port *port)
 {
-        struct net_device *rmnet_dev, *bridge_dev;
         struct rmnet_port *bridge_port;
+        struct net_device *bridge_dev;
 
         if (port->rmnet_mode != RMNET_EPMODE_BRIDGE)
                 return;
 
         /* bridge slave handling */
         if (!port->nr_rmnet_devs) {
-                rmnet_dev = netdev_master_upper_dev_get_rcu(dev);
-                netdev_upper_dev_unlink(dev, rmnet_dev);
-
                 bridge_dev = port->bridge_ep;
 
                 bridge_port = rmnet_get_port_rtnl(bridge_dev);
@@ -132,9 +123,6 @@ static void rmnet_unregister_bridge(struct net_device *dev,
                 bridge_dev = port->bridge_ep;
 
                 bridge_port = rmnet_get_port_rtnl(bridge_dev);
-                rmnet_dev = netdev_master_upper_dev_get_rcu(bridge_dev);
-                netdev_upper_dev_unlink(bridge_dev, rmnet_dev);
-
                 rmnet_unregister_real_device(bridge_dev, bridge_port);
         }
 }
@@ -173,10 +161,6 @@ static int rmnet_newlink(struct net *src_net, struct net_device *dev,
         if (err)
                 goto err1;
 
-        err = netdev_master_upper_dev_link(dev, real_dev, NULL, NULL, extack);
-        if (err)
-                goto err2;
-
         port->rmnet_mode = mode;
 
         hlist_add_head_rcu(&ep->hlnode, &port->muxed_ep[mux_id]);
@@ -193,8 +177,6 @@ static int rmnet_newlink(struct net *src_net, struct net_device *dev,
 
         return 0;
 
-err2:
-        rmnet_vnd_dellink(mux_id, port, ep);
 err1:
         rmnet_unregister_real_device(real_dev, port);
 err0:
@@ -204,14 +186,13 @@ err0:
 
 static void rmnet_dellink(struct net_device *dev, struct list_head *head)
 {
+        struct rmnet_priv *priv = netdev_priv(dev);
         struct net_device *real_dev;
         struct rmnet_endpoint *ep;
         struct rmnet_port *port;
         u8 mux_id;
 
-        rcu_read_lock();
-        real_dev = netdev_master_upper_dev_get_rcu(dev);
-        rcu_read_unlock();
+        real_dev = priv->real_dev;
 
         if (!real_dev || !rmnet_is_real_dev_registered(real_dev))
                 return;
@@ -219,7 +200,6 @@ static void rmnet_dellink(struct net_device *dev, struct list_head *head)
         port = rmnet_get_port_rtnl(real_dev);
 
         mux_id = rmnet_vnd_get_mux(dev);
-        netdev_upper_dev_unlink(dev, real_dev);
 
         ep = rmnet_get_endpoint(port, mux_id);
         if (ep) {
@@ -233,30 +213,13 @@ static void rmnet_dellink(struct net_device *dev, struct list_head *head)
         unregister_netdevice_queue(dev, head);
 }
 
-static int rmnet_dev_walk_unreg(struct net_device *rmnet_dev, void *data)
-{
-        struct rmnet_walk_data *d = data;
-        struct rmnet_endpoint *ep;
-        u8 mux_id;
-
-        mux_id = rmnet_vnd_get_mux(rmnet_dev);
-        ep = rmnet_get_endpoint(d->port, mux_id);
-        if (ep) {
-                hlist_del_init_rcu(&ep->hlnode);
-                rmnet_vnd_dellink(mux_id, d->port, ep);
-                kfree(ep);
-        }
-        netdev_upper_dev_unlink(rmnet_dev, d->real_dev);
-        unregister_netdevice_queue(rmnet_dev, d->head);
-
-        return 0;
-}
-
 static void rmnet_force_unassociate_device(struct net_device *dev)
 {
         struct net_device *real_dev = dev;
-        struct rmnet_walk_data d;
+        struct hlist_node *tmp_ep;
+        struct rmnet_endpoint *ep;
         struct rmnet_port *port;
+        unsigned long bkt_ep;
         LIST_HEAD(list);
 
         if (!rmnet_is_real_dev_registered(real_dev))
@@ -264,16 +227,19 @@ static void rmnet_force_unassociate_device(struct net_device *dev)
 
         ASSERT_RTNL();
 
-        d.real_dev = real_dev;
-        d.head = &list;
-
         port = rmnet_get_port_rtnl(dev);
-        d.port = port;
 
         rcu_read_lock();
         rmnet_unregister_bridge(dev, port);
 
-        netdev_walk_all_lower_dev_rcu(real_dev, rmnet_dev_walk_unreg, &d);
+        hash_for_each_safe(port->muxed_ep, bkt_ep, tmp_ep, ep, hlnode) {
+                unregister_netdevice_queue(ep->egress_dev, &list);
+                rmnet_vnd_dellink(ep->mux_id, port, ep);
+
+                hlist_del_init_rcu(&ep->hlnode);
+                kfree(ep);
+        }
+
         rcu_read_unlock();
         unregister_netdevice_many(&list);
 
@@ -422,11 +388,6 @@ int rmnet_add_bridge(struct net_device *rmnet_dev,
         if (err)
                 return -EBUSY;
 
-        err = netdev_master_upper_dev_link(slave_dev, rmnet_dev, NULL, NULL,
-                                           extack);
-        if (err)
-                return -EINVAL;
-
         slave_port = rmnet_get_port(slave_dev);
         slave_port->rmnet_mode = RMNET_EPMODE_BRIDGE;
         slave_port->bridge_ep = real_dev;
@@ -449,7 +410,6 @@ int rmnet_del_bridge(struct net_device *rmnet_dev,
         port->rmnet_mode = RMNET_EPMODE_VND;
         port->bridge_ep = NULL;
 
-        netdev_upper_dev_unlink(slave_dev, rmnet_dev);
         slave_port = rmnet_get_port(slave_dev);
         rmnet_unregister_real_device(slave_dev, slave_port);
 
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_command.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_command.c
index 6bc328fb88e1..b0dbca070c00 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_command.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_command.c
@@ -38,6 +38,11 @@ static u8 rmnet_map_do_flow_control(struct sk_buff *skb,
         }
 
         ep = rmnet_get_endpoint(port, mux_id);
+        if (!ep) {
+                kfree_skb(skb);
+                return RX_HANDLER_CONSUMED;
+        }
+
         vnd = ep->egress_dev;
 
         ip_family = cmd->flow_control.ip_family;
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c
index 570a227acdd8..346d310914df 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c
@@ -121,7 +121,7 @@ static void rmnet_get_stats64(struct net_device *dev,
         memset(&total_stats, 0, sizeof(struct rmnet_vnd_stats));
 
         for_each_possible_cpu(cpu) {
-                pcpu_ptr = this_cpu_ptr(priv->pcpu_stats);
+                pcpu_ptr = per_cpu_ptr(priv->pcpu_stats, cpu);
 
                 do {
                         start = u64_stats_fetch_begin_irq(&pcpu_ptr->syncp);
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index c87f57ca4437..a95fbd5510d9 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -2255,9 +2255,6 @@ static int ravb_wol_setup(struct net_device *ndev)
         /* Enable MagicPacket */
         ravb_modify(ndev, ECMR, ECMR_MPDE, ECMR_MPDE);
 
-        /* Increased clock usage so device won't be suspended */
-        clk_enable(priv->clk);
-
         return enable_irq_wake(priv->emac_irq);
 }
 
@@ -2276,9 +2273,6 @@ static int ravb_wol_restore(struct net_device *ndev)
         if (ret < 0)
                 return ret;
 
-        /* Restore clock usage count */
-        clk_disable(priv->clk);
-
         return disable_irq_wake(priv->emac_irq);
 }
 
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index a197e11f3a56..14c839bb09e7 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -40,7 +40,6 @@
 #include <linux/slab.h>
 #include <linux/ethtool.h>
 #include <linux/if_vlan.h>
-#include <linux/clk.h>
 #include <linux/sh_eth.h>
 #include <linux/of_mdio.h>
 
@@ -440,6 +439,17 @@ static void sh_eth_modify(struct net_device *ndev, int enum_index, u32 clear,
                      enum_index);
 }
 
+static void sh_eth_tsu_write(struct sh_eth_private *mdp, u32 data,
+                             int enum_index)
+{
+        iowrite32(data, mdp->tsu_addr + mdp->reg_offset[enum_index]);
+}
+
+static u32 sh_eth_tsu_read(struct sh_eth_private *mdp, int enum_index)
+{
+        return ioread32(mdp->tsu_addr + mdp->reg_offset[enum_index]);
+}
+
 static bool sh_eth_is_gether(struct sh_eth_private *mdp)
 {
         return mdp->reg_offset == sh_eth_offset_gigabit;
@@ -2304,7 +2314,7 @@ static void sh_eth_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
         wol->supported = 0;
         wol->wolopts = 0;
 
-        if (mdp->cd->magic && mdp->clk) {
+        if (mdp->cd->magic) {
                 wol->supported = WAKE_MAGIC;
                 wol->wolopts = mdp->wol_enabled ? WAKE_MAGIC : 0;
         }
@@ -2314,7 +2324,7 @@ static int sh_eth_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
 {
         struct sh_eth_private *mdp = netdev_priv(ndev);
 
-        if (!mdp->cd->magic || !mdp->clk || wol->wolopts & ~WAKE_MAGIC)
+        if (!mdp->cd->magic || wol->wolopts & ~WAKE_MAGIC)
                 return -EOPNOTSUPP;
 
         mdp->wol_enabled = !!(wol->wolopts & WAKE_MAGIC);
@@ -3153,11 +3163,6 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
                 goto out_release;
         }
 
-        /* Get clock, if not found that's OK but Wake-On-Lan is unavailable */
-        mdp->clk = devm_clk_get(&pdev->dev, NULL);
-        if (IS_ERR(mdp->clk))
-                mdp->clk = NULL;
-
         ndev->base_addr = res->start;
 
         spin_lock_init(&mdp->lock);
@@ -3278,7 +3283,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
         if (ret)
                 goto out_napi_del;
 
-        if (mdp->cd->magic && mdp->clk)
+        if (mdp->cd->magic)
                 device_set_wakeup_capable(&pdev->dev, 1);
 
         /* print device information */
@@ -3331,9 +3336,6 @@ static int sh_eth_wol_setup(struct net_device *ndev)
         /* Enable MagicPacket */
         sh_eth_modify(ndev, ECMR, ECMR_MPDE, ECMR_MPDE);
 
-        /* Increased clock usage so device won't be suspended */
-        clk_enable(mdp->clk);
-
         return enable_irq_wake(ndev->irq);
 }
 
@@ -3359,9 +3361,6 @@ static int sh_eth_wol_restore(struct net_device *ndev)
         if (ret < 0)
                 return ret;
 
-        /* Restore clock usage count */
-        clk_disable(mdp->clk);
-
         return disable_irq_wake(ndev->irq);
 }
 
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index a6753ccba711..e5fe70134690 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -567,15 +567,4 @@ static inline void *sh_eth_tsu_get_offset(struct sh_eth_private *mdp,
         return mdp->tsu_addr + mdp->reg_offset[enum_index];
 }
 
-static inline void sh_eth_tsu_write(struct sh_eth_private *mdp, u32 data,
-                                    int enum_index)
-{
-        iowrite32(data, mdp->tsu_addr + mdp->reg_offset[enum_index]);
-}
-
-static inline u32 sh_eth_tsu_read(struct sh_eth_private *mdp, int enum_index)
-{
-        return ioread32(mdp->tsu_addr + mdp->reg_offset[enum_index]);
-}
-
 #endif  /* #ifndef __SH_ETH_H__ */
diff --git a/drivers/net/ethernet/smsc/Kconfig b/drivers/net/ethernet/smsc/Kconfig
index 63aca9f847e1..4c2f612e4414 100644
--- a/drivers/net/ethernet/smsc/Kconfig
+++ b/drivers/net/ethernet/smsc/Kconfig
@@ -20,7 +20,7 @@ if NET_VENDOR_SMSC
 
 config SMC9194
         tristate "SMC 9194 support"
-        depends on (ISA || MAC && BROKEN)
+        depends on ISA
         select CRC32
         ---help---
           This is support for the SMC9xxx based Ethernet cards. Choose this
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 012fb66eed8d..f0afb88d7bc2 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2335,14 +2335,14 @@ static int smsc911x_drv_remove(struct platform_device *pdev)
         pdata = netdev_priv(dev);
         BUG_ON(!pdata);
         BUG_ON(!pdata->ioaddr);
-        WARN_ON(dev->phydev);
 
         SMSC_TRACE(pdata, ifdown, "Stopping driver");
 
+        unregister_netdev(dev);
+
         mdiobus_unregister(pdata->mii_bus);
         mdiobus_free(pdata->mii_bus);
 
-        unregister_netdev(dev);
         res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
                                            "smsc911x-memory");
         if (!res)
diff --git a/drivers/net/ethernet/socionext/sni_ave.c b/drivers/net/ethernet/socionext/sni_ave.c
index 111e7ca9df56..f5c5984afefb 100644
--- a/drivers/net/ethernet/socionext/sni_ave.c
+++ b/drivers/net/ethernet/socionext/sni_ave.c
@@ -1295,7 +1295,7 @@ static int ave_open(struct net_device *ndev)
         val |= AVE_IIRQC_EN0 | (AVE_INTM_COUNT << 16);
         writel(val, priv->base + AVE_IIRQC);
 
-        val = AVE_GI_RXIINT | AVE_GI_RXOVF | AVE_GI_TX;
+        val = AVE_GI_RXIINT | AVE_GI_RXOVF | AVE_GI_TX | AVE_GI_RXDROP;
         ave_irq_restore(ndev, val);
 
         napi_enable(&priv->napi_rx);
diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c
index 63d3d6b215f3..a94f50442613 100644
--- a/drivers/net/ethernet/sun/sunvnet.c
+++ b/drivers/net/ethernet/sun/sunvnet.c
@@ -312,7 +312,7 @@ static struct vnet *vnet_new(const u64 *local_mac,
         dev->ethtool_ops = &vnet_ethtool_ops;
         dev->watchdog_timeo = VNET_TX_TIMEOUT;
 
-        dev->hw_features = NETIF_F_TSO | NETIF_F_GSO | NETIF_F_GSO_SOFTWARE |
+        dev->hw_features = NETIF_F_TSO | NETIF_F_GSO | NETIF_F_ALL_TSO |
                            NETIF_F_HW_CSUM | NETIF_F_SG;
         dev->features = dev->hw_features;
 
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 1b1b78fdc138..b2b30c9df037 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1014,7 +1014,8 @@ static void _cpsw_adjust_link(struct cpsw_slave *slave,
                 /* set speed_in input in case RMII mode is used in 100Mbps */
                 if (phy->speed == 100)
                         mac_control |= BIT(15);
-                else if (phy->speed == 10)
+                /* in band mode only works in 10Mbps RGMII mode */
+                else if ((phy->speed == 10) && phy_interface_is_rgmii(phy))
                         mac_control |= BIT(18); /* In Band mode */
 
                 if (priv->rx_pause)
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 0db3bd1ea06f..32861036c3fc 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -173,6 +173,7 @@ struct rndis_device {
         struct list_head req_list;
 
         struct work_struct mcast_work;
+        u32 filter;
 
         bool link_state;        /* 0 - link up, 1 - link down */
 
@@ -211,7 +212,6 @@ void netvsc_channel_cb(void *context);
 int netvsc_poll(struct napi_struct *napi, int budget);
 
 void rndis_set_subchannel(struct work_struct *w);
-bool rndis_filter_opened(const struct netvsc_device *nvdev);
 int rndis_filter_open(struct netvsc_device *nvdev);
 int rndis_filter_close(struct netvsc_device *nvdev);
 struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 17e529af79dc..7472172823f3 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -90,6 +90,11 @@ static void free_netvsc_device(struct rcu_head *head)
                 = container_of(head, struct netvsc_device, rcu);
         int i;
 
+        kfree(nvdev->extension);
+        vfree(nvdev->recv_buf);
+        vfree(nvdev->send_buf);
+        kfree(nvdev->send_section_map);
+
         for (i = 0; i < VRSS_CHANNEL_MAX; i++)
                 vfree(nvdev->chan_table[i].mrc.slots);
 
@@ -211,12 +216,6 @@ static void netvsc_teardown_gpadl(struct hv_device *device,
                 net_device->recv_buf_gpadl_handle = 0;
         }
 
-        if (net_device->recv_buf) {
-                /* Free up the receive buffer */
-                vfree(net_device->recv_buf);
-                net_device->recv_buf = NULL;
-        }
-
         if (net_device->send_buf_gpadl_handle) {
                 ret = vmbus_teardown_gpadl(device->channel,
                                            net_device->send_buf_gpadl_handle);
@@ -231,12 +230,6 @@ static void netvsc_teardown_gpadl(struct hv_device *device,
                 }
                 net_device->send_buf_gpadl_handle = 0;
         }
-        if (net_device->send_buf) {
-                /* Free up the send buffer */
-                vfree(net_device->send_buf);
-                net_device->send_buf = NULL;
-        }
-        kfree(net_device->send_section_map);
 }
 
 int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx)
@@ -562,26 +555,29 @@ void netvsc_device_remove(struct hv_device *device)
                 = rtnl_dereference(net_device_ctx->nvdev);
         int i;
 
-        cancel_work_sync(&net_device->subchan_work);
-
         netvsc_revoke_buf(device, net_device);
 
         RCU_INIT_POINTER(net_device_ctx->nvdev, NULL);
 
+        /* And disassociate NAPI context from device */
+        for (i = 0; i < net_device->num_chn; i++)
+                netif_napi_del(&net_device->chan_table[i].napi);
+
         /*
          * At this point, no one should be accessing net_device
          * except in here
          */
         netdev_dbg(ndev, "net device safe to remove\n");
 
+        /* older versions require that buffer be revoked before close */
+        if (net_device->nvsp_version < NVSP_PROTOCOL_VERSION_4)
+                netvsc_teardown_gpadl(device, net_device);
+
         /* Now, we can close the channel safely */
         vmbus_close(device->channel);
 
-        netvsc_teardown_gpadl(device, net_device);
-
-        /* And dissassociate NAPI context from device */
-        for (i = 0; i < net_device->num_chn; i++)
-                netif_napi_del(&net_device->chan_table[i].napi);
+        if (net_device->nvsp_version >= NVSP_PROTOCOL_VERSION_4)
+                netvsc_teardown_gpadl(device, net_device);
 
         /* Release all resources */
         free_netvsc_device_rcu(net_device);
@@ -645,14 +641,18 @@ static void netvsc_send_tx_complete(struct netvsc_device *net_device,
         queue_sends =
                 atomic_dec_return(&net_device->chan_table[q_idx].queue_sends);
 
-        if (net_device->destroy && queue_sends == 0)
-                wake_up(&net_device->wait_drain);
+        if (unlikely(net_device->destroy)) {
+                if (queue_sends == 0)
+                        wake_up(&net_device->wait_drain);
+        } else {
+                struct netdev_queue *txq = netdev_get_tx_queue(ndev, q_idx);
 
-        if (netif_tx_queue_stopped(netdev_get_tx_queue(ndev, q_idx)) &&
-            (hv_ringbuf_avail_percent(&channel->outbound) > RING_AVAIL_PERCENT_HIWATER ||
-             queue_sends < 1)) {
-                netif_tx_wake_queue(netdev_get_tx_queue(ndev, q_idx));
-                ndev_ctx->eth_stats.wake_queue++;
+                if (netif_tx_queue_stopped(txq) &&
+                    (hv_ringbuf_avail_percent(&channel->outbound) > RING_AVAIL_PERCENT_HIWATER ||
+                     queue_sends < 1)) {
+                        netif_tx_wake_queue(txq);
+                        ndev_ctx->eth_stats.wake_queue++;
+                }
         }
 }
 
@@ -852,13 +852,6 @@ int netvsc_send(struct net_device *ndev,
         if (unlikely(!net_device || net_device->destroy))
                 return -ENODEV;
 
-        /* We may race with netvsc_connect_vsp()/netvsc_init_buf() and get
-         * here before the negotiation with the host is finished and
-         * send_section_map may not be allocated yet.
-         */
-        if (unlikely(!net_device->send_section_map))
-                return -EAGAIN;
-
         nvchan = &net_device->chan_table[packet->q_idx];
         packet->send_buf_index = NETVSC_INVALID_INDEX;
         packet->cp_partial = false;
@@ -866,10 +859,8 @@ int netvsc_send(struct net_device *ndev,
         /* Send control message directly without accessing msd (Multi-Send
          * Data) field which may be changed during data packet processing.
          */
-        if (!skb) {
-                cur_send = packet;
-                goto send_now;
-        }
+        if (!skb)
+                return netvsc_send_pkt(device, packet, net_device, pb, skb);
 
         /* batch packets in send buffer if possible */
         msdp = &nvchan->msd;
@@ -953,7 +944,6 @@ int netvsc_send(struct net_device *ndev,
                 }
         }
 
-send_now:
         if (cur_send)
                 ret = netvsc_send_pkt(device, cur_send, net_device, pb, skb);
 
@@ -1217,9 +1207,10 @@ int netvsc_poll(struct napi_struct *napi, int budget)
         if (send_recv_completions(ndev, net_device, nvchan) == 0 &&
             work_done < budget &&
             napi_complete_done(napi, work_done) &&
-            hv_end_read(&channel->inbound)) {
+            hv_end_read(&channel->inbound) &&
+            napi_schedule_prep(napi)) {
                 hv_begin_read(&channel->inbound);
-                napi_reschedule(napi);
+                __napi_schedule(napi);
         }
 
         /* Driver may overshoot since multiple packets per descriptor */
@@ -1242,7 +1233,7 @@ void netvsc_channel_cb(void *context)
                 /* disable interupts from host */
                 hv_begin_read(rbi);
 
-                __napi_schedule(&nvchan->napi);
+                __napi_schedule_irqoff(&nvchan->napi);
         }
 }
 
@@ -1296,7 +1287,6 @@ struct netvsc_device *netvsc_device_add(struct hv_device *device,
                          netvsc_channel_cb, net_device->chan_table);
 
         if (ret != 0) {
-                netif_napi_del(&net_device->chan_table[0].napi);
                 netdev_err(ndev, "unable to open channel: %d\n", ret);
                 goto cleanup;
         }
@@ -1306,11 +1296,6 @@ struct netvsc_device *netvsc_device_add(struct hv_device *device,
 
         napi_enable(&net_device->chan_table[0].napi);
 
-        /* Writing nvdev pointer unlocks netvsc_send(), make sure chn_table is
-         * populated.
-         */
-        rcu_assign_pointer(net_device_ctx->nvdev, net_device);
-
         /* Connect with the NetVsp */
         ret = netvsc_connect_vsp(device, net_device, device_info);
         if (ret != 0) {
@@ -1319,6 +1304,11 @@ struct netvsc_device *netvsc_device_add(struct hv_device *device,
                 goto close;
         }
 
+        /* Writing nvdev pointer unlocks netvsc_send(), make sure chn_table is
+         * populated.
+         */
+        rcu_assign_pointer(net_device_ctx->nvdev, net_device);
+
         return net_device;
 
 close:
@@ -1329,6 +1319,7 @@ close:
         vmbus_close(device->channel);
 
 cleanup:
+        netif_napi_del(&net_device->chan_table[0].napi);
         free_netvsc_device(&net_device->rcu);
 
         return ERR_PTR(ret);
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index c5584c2d440e..f28c85d212ce 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -46,7 +46,10 @@
 
 #include "hyperv_net.h"
 
-#define RING_SIZE_MIN           64
+#define RING_SIZE_MIN   64
+#define RETRY_US_LO     5000
+#define RETRY_US_HI     10000
+#define RETRY_MAX       2000    /* >10 sec */
 
 #define LINKCHANGE_INT (2 * HZ)
 #define VF_TAKEOVER_INT (HZ / 10)
@@ -66,12 +69,43 @@ static int debug = -1;
 module_param(debug, int, S_IRUGO);
 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
 
-static void netvsc_set_multicast_list(struct net_device *net)
+static void netvsc_change_rx_flags(struct net_device *net, int change)
 {
-        struct net_device_context *net_device_ctx = netdev_priv(net);
-        struct netvsc_device *nvdev = rtnl_dereference(net_device_ctx->nvdev);
+        struct net_device_context *ndev_ctx = netdev_priv(net);
+        struct net_device *vf_netdev = rtnl_dereference(ndev_ctx->vf_netdev);
+        int inc;
+
+        if (!vf_netdev)
+                return;
+
+        if (change & IFF_PROMISC) {
+                inc = (net->flags & IFF_PROMISC) ? 1 : -1;
+                dev_set_promiscuity(vf_netdev, inc);
+        }
+
+        if (change & IFF_ALLMULTI) {
+                inc = (net->flags & IFF_ALLMULTI) ? 1 : -1;
+                dev_set_allmulti(vf_netdev, inc);
+        }
+}
 
-        rndis_filter_update(nvdev);
+static void netvsc_set_rx_mode(struct net_device *net)
+{
+        struct net_device_context *ndev_ctx = netdev_priv(net);
+        struct net_device *vf_netdev;
+        struct netvsc_device *nvdev;
+
+        rcu_read_lock();
+        vf_netdev = rcu_dereference(ndev_ctx->vf_netdev);
+        if (vf_netdev) {
+                dev_uc_sync(vf_netdev, net);
+                dev_mc_sync(vf_netdev, net);
+        }
+
+        nvdev = rcu_dereference(ndev_ctx->nvdev);
+        if (nvdev)
+                rndis_filter_update(nvdev);
+        rcu_read_unlock();
 }
 
 static int netvsc_open(struct net_device *net)
@@ -91,10 +125,7 @@ static int netvsc_open(struct net_device *net)
                 return ret;
         }
 
-        netif_tx_wake_all_queues(net);
-
         rdev = nvdev->extension;
-
         if (!rdev->link_state)
                 netif_carrier_on(net);
 
@@ -112,36 +143,25 @@ static int netvsc_open(struct net_device *net)
         return 0;
 }
 
-static int netvsc_close(struct net_device *net)
+static int netvsc_wait_until_empty(struct netvsc_device *nvdev)
 {
-        struct net_device_context *net_device_ctx = netdev_priv(net);
-        struct net_device *vf_netdev
-                = rtnl_dereference(net_device_ctx->vf_netdev);
-        struct netvsc_device *nvdev = rtnl_dereference(net_device_ctx->nvdev);
-        int ret = 0;
-        u32 aread, i, msec = 10, retry = 0, retry_max = 20;
-        struct vmbus_channel *chn;
-
-        netif_tx_disable(net);
-
-        /* No need to close rndis filter if it is removed already */
-        if (!nvdev)
-                goto out;
-
-        ret = rndis_filter_close(nvdev);
-        if (ret != 0) {
-                netdev_err(net, "unable to close device (ret %d).\n", ret);
-                return ret;
-        }
+        unsigned int retry = 0;
+        int i;
 
         /* Ensure pending bytes in ring are read */
-        while (true) {
-                aread = 0;
+        for (;;) {
+                u32 aread = 0;
+
                 for (i = 0; i < nvdev->num_chn; i++) {
-                        chn = nvdev->chan_table[i].channel;
+                        struct vmbus_channel *chn
+                                = nvdev->chan_table[i].channel;
+
                         if (!chn)
                                 continue;
 
+                        /* make sure receive not running now */
+                        napi_synchronize(&nvdev->chan_table[i].napi);
+
                         aread = hv_get_bytes_to_read(&chn->inbound);
                         if (aread)
                                 break;
@@ -151,22 +171,40 @@ static int netvsc_close(struct net_device *net)
                                 break;
                 }
 
-                retry++;
-                if (retry > retry_max || aread == 0)
-                        break;
+                if (aread == 0)
+                        return 0;
 
-                msleep(msec);
+                if (++retry > RETRY_MAX)
+                        return -ETIMEDOUT;
 
-                if (msec < 1000)
-                        msec *= 2;
+                usleep_range(RETRY_US_LO, RETRY_US_HI);
         }
+}
 
-        if (aread) {
-                netdev_err(net, "Ring buffer not empty after closing rndis\n");
-                ret = -ETIMEDOUT;
+static int netvsc_close(struct net_device *net)
+{
+        struct net_device_context *net_device_ctx = netdev_priv(net);
+        struct net_device *vf_netdev
+                = rtnl_dereference(net_device_ctx->vf_netdev);
+        struct netvsc_device *nvdev = rtnl_dereference(net_device_ctx->nvdev);
+        int ret;
+
+        netif_tx_disable(net);
+
+        /* No need to close rndis filter if it is removed already */
+        if (!nvdev)
+                return 0;
+
+        ret = rndis_filter_close(nvdev);
+        if (ret != 0) {
+                netdev_err(net, "unable to close device (ret %d).\n", ret);
+                return ret;
         }
 
-out:
+        ret = netvsc_wait_until_empty(nvdev);
+        if (ret)
+                netdev_err(net, "Ring buffer not empty after closing rndis\n");
+
         if (vf_netdev)
                 dev_close(vf_netdev);
 
@@ -299,8 +337,19 @@ static u16 netvsc_select_queue(struct net_device *ndev, struct sk_buff *skb,
         rcu_read_lock();
         vf_netdev = rcu_dereference(ndc->vf_netdev);
         if (vf_netdev) {
-                txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0;
-                qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping;
+                const struct net_device_ops *vf_ops = vf_netdev->netdev_ops;
+
+                if (vf_ops->ndo_select_queue)
+                        txq = vf_ops->ndo_select_queue(vf_netdev, skb,
+                                                       accel_priv, fallback);
+                else
+                        txq = fallback(vf_netdev, skb);
+
+                /* Record the queue selected by VF so that it can be
+                 * used for common case where VF has more queues than
+                 * the synthetic device.
+                 */
+                qdisc_skb_cb(skb)->slave_dev_queue_mapping = txq;
         } else {
                 txq = netvsc_pick_tx(ndev, skb);
         }
@@ -804,16 +853,81 @@ static void netvsc_get_channels(struct net_device *net,
         }
 }
 
+static int netvsc_detach(struct net_device *ndev,
+                         struct netvsc_device *nvdev)
+{
+        struct net_device_context *ndev_ctx = netdev_priv(ndev);
+        struct hv_device *hdev = ndev_ctx->device_ctx;
+        int ret;
+
+        /* Don't try continuing to try and setup sub channels */
+        if (cancel_work_sync(&nvdev->subchan_work))
+                nvdev->num_chn = 1;
+
+        /* If device was up (receiving) then shutdown */
+        if (netif_running(ndev)) {
+                netif_tx_disable(ndev);
+
+                ret = rndis_filter_close(nvdev);
+                if (ret) {
+                        netdev_err(ndev,
+                                   "unable to close device (ret %d).\n", ret);
+                        return ret;
+                }
+
+                ret = netvsc_wait_until_empty(nvdev);
+                if (ret) {
+                        netdev_err(ndev,
+                                   "Ring buffer not empty after closing rndis\n");
+                        return ret;
+                }
+        }
+
+        netif_device_detach(ndev);
+
+        rndis_filter_device_remove(hdev, nvdev);
+
+        return 0;
+}
+
+static int netvsc_attach(struct net_device *ndev,
+                         struct netvsc_device_info *dev_info)
+{
+        struct net_device_context *ndev_ctx = netdev_priv(ndev);
+        struct hv_device *hdev = ndev_ctx->device_ctx;
+        struct netvsc_device *nvdev;
+        struct rndis_device *rdev;
+        int ret;
+
+        nvdev = rndis_filter_device_add(hdev, dev_info);
+        if (IS_ERR(nvdev))
+                return PTR_ERR(nvdev);
+
+        /* Note: enable and attach happen when sub-channels setup */
+
+        netif_carrier_off(ndev);
+
+        if (netif_running(ndev)) {
+                ret = rndis_filter_open(nvdev);
+                if (ret)
+                        return ret;
+
+                rdev = nvdev->extension;
+                if (!rdev->link_state)
+                        netif_carrier_on(ndev);
+        }
+
+        return 0;
+}
+
 static int netvsc_set_channels(struct net_device *net,
                                struct ethtool_channels *channels)
 {
         struct net_device_context *net_device_ctx = netdev_priv(net);
-        struct hv_device *dev = net_device_ctx->device_ctx;
         struct netvsc_device *nvdev = rtnl_dereference(net_device_ctx->nvdev);
         unsigned int orig, count = channels->combined_count;
         struct netvsc_device_info device_info;
-        bool was_opened;
-        int ret = 0;
+        int ret;
 
         /* We do not support separate count for rx, tx, or other */
         if (count == 0 ||
@@ -830,9 +944,6 @@ static int netvsc_set_channels(struct net_device *net,
                 return -EINVAL;
 
         orig = nvdev->num_chn;
-        was_opened = rndis_filter_opened(nvdev);
-        if (was_opened)
-                rndis_filter_close(nvdev);
 
         memset(&device_info, 0, sizeof(device_info));
         device_info.num_chn = count;
@@ -841,28 +952,17 @@ static int netvsc_set_channels(struct net_device *net,
         device_info.recv_sections = nvdev->recv_section_cnt;
         device_info.recv_section_size = nvdev->recv_section_size;
 
-        rndis_filter_device_remove(dev, nvdev);
+        ret = netvsc_detach(net, nvdev);
+        if (ret)
+                return ret;
 
-        nvdev = rndis_filter_device_add(dev, &device_info);
-        if (IS_ERR(nvdev)) {
-                ret = PTR_ERR(nvdev);
+        ret = netvsc_attach(net, &device_info);
+        if (ret) {
                 device_info.num_chn = orig;
-                nvdev = rndis_filter_device_add(dev, &device_info);
-
-                if (IS_ERR(nvdev)) {
-                        netdev_err(net, "restoring channel setting failed: %ld\n",
-                                   PTR_ERR(nvdev));
-                        return ret;
-                }
+                if (netvsc_attach(net, &device_info))
+                        netdev_err(net, "restoring channel setting failed\n");
         }
 
-        if (was_opened)
-                rndis_filter_open(nvdev);
-
-        /* We may have missed link change notifications */
-        net_device_ctx->last_reconfig = 0;
-        schedule_delayed_work(&net_device_ctx->dwork, 0);
-
         return ret;
 }
 
@@ -928,10 +1028,8 @@ static int netvsc_change_mtu(struct net_device *ndev, int mtu)
         struct net_device_context *ndevctx = netdev_priv(ndev);
         struct net_device *vf_netdev = rtnl_dereference(ndevctx->vf_netdev);
         struct netvsc_device *nvdev = rtnl_dereference(ndevctx->nvdev);
-        struct hv_device *hdev = ndevctx->device_ctx;
         int orig_mtu = ndev->mtu;
         struct netvsc_device_info device_info;
-        bool was_opened;
         int ret = 0;
 
         if (!nvdev || nvdev->destroy)
@@ -944,11 +1042,6 @@ static int netvsc_change_mtu(struct net_device *ndev, int mtu)
                         return ret;
         }
 
-        netif_device_detach(ndev);
-        was_opened = rndis_filter_opened(nvdev);
-        if (was_opened)
-                rndis_filter_close(nvdev);
-
         memset(&device_info, 0, sizeof(device_info));
         device_info.num_chn = nvdev->num_chn;
         device_info.send_sections = nvdev->send_section_cnt;
@@ -956,35 +1049,27 @@ static int netvsc_change_mtu(struct net_device *ndev, int mtu)
         device_info.recv_sections = nvdev->recv_section_cnt;
         device_info.recv_section_size = nvdev->recv_section_size;
 
-        rndis_filter_device_remove(hdev, nvdev);
+        ret = netvsc_detach(ndev, nvdev);
+        if (ret)
+                goto rollback_vf;
 
         ndev->mtu = mtu;
 
-        nvdev = rndis_filter_device_add(hdev, &device_info);
-        if (IS_ERR(nvdev)) {
-                ret = PTR_ERR(nvdev);
-
-                /* Attempt rollback to original MTU */
-                ndev->mtu = orig_mtu;
-                nvdev = rndis_filter_device_add(hdev, &device_info);
-
-                if (vf_netdev)
-                        dev_set_mtu(vf_netdev, orig_mtu);
-
-                if (IS_ERR(nvdev)) {
-                        netdev_err(ndev, "restoring mtu failed: %ld\n",
-                                   PTR_ERR(nvdev));
-                        return ret;
-                }
-        }
+        ret = netvsc_attach(ndev, &device_info);
+        if (ret)
+                goto rollback;
 
-        if (was_opened)
-                rndis_filter_open(nvdev);
+        return 0;
 
-        netif_device_attach(ndev);
+rollback:
+        /* Attempt rollback to original MTU */
+        ndev->mtu = orig_mtu;
 
-        /* We may have missed link change notifications */
-        schedule_delayed_work(&ndevctx->dwork, 0);
+        if (netvsc_attach(ndev, &device_info))
+                netdev_err(ndev, "restoring mtu failed\n");
+rollback_vf:
+        if (vf_netdev)
+                dev_set_mtu(vf_netdev, orig_mtu);
 
         return ret;
 }
@@ -1490,11 +1575,9 @@ static int netvsc_set_ringparam(struct net_device *ndev,
 {
         struct net_device_context *ndevctx = netdev_priv(ndev);
         struct netvsc_device *nvdev = rtnl_dereference(ndevctx->nvdev);
-        struct hv_device *hdev = ndevctx->device_ctx;
         struct netvsc_device_info device_info;
         struct ethtool_ringparam orig;
         u32 new_tx, new_rx;
-        bool was_opened;
         int ret = 0;
 
         if (!nvdev || nvdev->destroy)
@@ -1519,34 +1602,18 @@ static int netvsc_set_ringparam(struct net_device *ndev,
         device_info.recv_sections = new_rx;
         device_info.recv_section_size = nvdev->recv_section_size;
 
-        netif_device_detach(ndev);
-        was_opened = rndis_filter_opened(nvdev);
-        if (was_opened)
-                rndis_filter_close(nvdev);
-
-        rndis_filter_device_remove(hdev, nvdev);
-
-        nvdev = rndis_filter_device_add(hdev, &device_info);
-        if (IS_ERR(nvdev)) {
-                ret = PTR_ERR(nvdev);
+        ret = netvsc_detach(ndev, nvdev);
+        if (ret)
+                return ret;
 
+        ret = netvsc_attach(ndev, &device_info);
+        if (ret) {
                 device_info.send_sections = orig.tx_pending;
                 device_info.recv_sections = orig.rx_pending;
-                nvdev = rndis_filter_device_add(hdev, &device_info);
-                if (IS_ERR(nvdev)) {
-                        netdev_err(ndev, "restoring ringparam failed: %ld\n",
-                                   PTR_ERR(nvdev));
-                        return ret;
-                }
-        }
 
-        if (was_opened)
-                rndis_filter_open(nvdev);
-        netif_device_attach(ndev);
-
-        /* We may have missed link change notifications */
-        ndevctx->last_reconfig = 0;
-        schedule_delayed_work(&ndevctx->dwork, 0);
+                if (netvsc_attach(ndev, &device_info))
+                        netdev_err(ndev, "restoring ringparam failed");
+        }
 
         return ret;
 }
@@ -1576,7 +1643,8 @@ static const struct net_device_ops device_ops = {
         .ndo_open =                     netvsc_open,
         .ndo_stop =                     netvsc_close,
         .ndo_start_xmit =               netvsc_start_xmit,
-        .ndo_set_rx_mode =              netvsc_set_multicast_list,
+        .ndo_change_rx_flags =          netvsc_change_rx_flags,
+        .ndo_set_rx_mode =              netvsc_set_rx_mode,
         .ndo_change_mtu =               netvsc_change_mtu,
         .ndo_validate_addr =            eth_validate_addr,
         .ndo_set_mac_address =          netvsc_set_mac_addr,
@@ -1807,6 +1875,15 @@ static void __netvsc_vf_setup(struct net_device *ndev,
                 netdev_warn(vf_netdev,
                             "unable to change mtu to %u\n", ndev->mtu);
 
+        /* set multicast etc flags on VF */
+        dev_change_flags(vf_netdev, ndev->flags | IFF_SLAVE);
+
+        /* sync address list from ndev to VF */
+        netif_addr_lock_bh(ndev);
+        dev_uc_sync(vf_netdev, ndev);
+        dev_mc_sync(vf_netdev, ndev);
+        netif_addr_unlock_bh(ndev);
+
         if (netif_running(ndev)) {
                 ret = dev_open(vf_netdev);
                 if (ret)
@@ -2021,8 +2098,8 @@ no_net:
 static int netvsc_remove(struct hv_device *dev)
 {
         struct net_device_context *ndev_ctx;
-        struct net_device *vf_netdev;
-        struct net_device *net;
+        struct net_device *vf_netdev, *net;
+        struct netvsc_device *nvdev;
 
         net = hv_get_drvdata(dev);
         if (net == NULL) {
@@ -2032,10 +2109,14 @@ static int netvsc_remove(struct hv_device *dev)
 
         ndev_ctx = netdev_priv(net);
 
-        netif_device_detach(net);
-
         cancel_delayed_work_sync(&ndev_ctx->dwork);
 
+        rcu_read_lock();
+        nvdev = rcu_dereference(ndev_ctx->nvdev);
+
+        if  (nvdev)
+                cancel_work_sync(&nvdev->subchan_work);
+
         /*
          * Call to the vsc driver to let it know that the device is being
          * removed. Also blocks mtu and channel changes.
@@ -2045,11 +2126,13 @@ static int netvsc_remove(struct hv_device *dev)
         if (vf_netdev)
                 netvsc_unregister_vf(vf_netdev);
 
+        if (nvdev)
+                rndis_filter_device_remove(dev, nvdev);
+
         unregister_netdevice(net);
 
-        rndis_filter_device_remove(dev,
-                                   rtnl_dereference(ndev_ctx->nvdev));
         rtnl_unlock();
+        rcu_read_unlock();
 
         hv_set_drvdata(dev, NULL);
 
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index c3ca191fea7f..a6ec41c399d6 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -264,13 +264,23 @@ static void rndis_set_link_state(struct rndis_device *rdev,
         }
 }
 
-static void rndis_filter_receive_response(struct rndis_device *dev,
-                                       struct rndis_message *resp)
+static void rndis_filter_receive_response(struct net_device *ndev,
+                                          struct netvsc_device *nvdev,
+                                          const struct rndis_message *resp)
 {
+        struct rndis_device *dev = nvdev->extension;
         struct rndis_request *request = NULL;
         bool found = false;
         unsigned long flags;
-        struct net_device *ndev = dev->ndev;
+
+        /* This should never happen, it means control message
+         * response received after device removed.
+         */
+        if (dev->state == RNDIS_DEV_UNINITIALIZED) {
+                netdev_err(ndev,
+                           "got rndis message uninitialized\n");
+                return;
+        }
 
         spin_lock_irqsave(&dev->request_lock, flags);
         list_for_each_entry(request, &dev->req_list, list_ent) {
@@ -352,7 +362,6 @@ static inline void *rndis_get_ppi(struct rndis_packet *rpkt, u32 type)
 
 static int rndis_filter_receive_data(struct net_device *ndev,
                                      struct netvsc_device *nvdev,
-                                     struct rndis_device *dev,
                                      struct rndis_message *msg,
                                      struct vmbus_channel *channel,
                                      void *data, u32 data_buflen)
@@ -372,7 +381,7 @@ static int rndis_filter_receive_data(struct net_device *ndev,
          * should be the data packet size plus the trailer padding size
          */
         if (unlikely(data_buflen < rndis_pkt->data_len)) {
-                netdev_err(dev->ndev, "rndis message buffer "
+                netdev_err(ndev, "rndis message buffer "
                            "overflow detected (got %u, min %u)"
                            "...dropping this message!\n",
                            data_buflen, rndis_pkt->data_len);
@@ -400,35 +409,20 @@ int rndis_filter_receive(struct net_device *ndev,
                          void *data, u32 buflen)
 {
         struct net_device_context *net_device_ctx = netdev_priv(ndev);
-        struct rndis_device *rndis_dev = net_dev->extension;
         struct rndis_message *rndis_msg = data;
 
-        /* Make sure the rndis device state is initialized */
-        if (unlikely(!rndis_dev)) {
-                netif_dbg(net_device_ctx, rx_err, ndev,
-                          "got rndis message but no rndis device!\n");
-                return NVSP_STAT_FAIL;
-        }
-
-        if (unlikely(rndis_dev->state == RNDIS_DEV_UNINITIALIZED)) {
-                netif_dbg(net_device_ctx, rx_err, ndev,
-                          "got rndis message uninitialized\n");
-                return NVSP_STAT_FAIL;
-        }
-
         if (netif_msg_rx_status(net_device_ctx))
                 dump_rndis_message(ndev, rndis_msg);
 
         switch (rndis_msg->ndis_msg_type) {
         case RNDIS_MSG_PACKET:
-                return rndis_filter_receive_data(ndev, net_dev,
-                                                 rndis_dev, rndis_msg,
+                return rndis_filter_receive_data(ndev, net_dev, rndis_msg,
                                                  channel, data, buflen);
         case RNDIS_MSG_INIT_C:
         case RNDIS_MSG_QUERY_C:
         case RNDIS_MSG_SET_C:
                 /* completion msgs */
-                rndis_filter_receive_response(rndis_dev, rndis_msg);
+                rndis_filter_receive_response(ndev, net_dev, rndis_msg);
                 break;
 
         case RNDIS_MSG_INDICATE:
@@ -825,13 +819,15 @@ static int rndis_filter_set_packet_filter(struct rndis_device *dev,
         struct rndis_set_request *set;
         int ret;
 
+        if (dev->filter == new_filter)
+                return 0;
+
         request = get_rndis_request(dev, RNDIS_MSG_SET,
                         RNDIS_MESSAGE_SIZE(struct rndis_set_request) +
                         sizeof(u32));
         if (!request)
                 return -ENOMEM;
 
-
         /* Setup the rndis set */
         set = &request->request_msg.msg.set_req;
         set->oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER;
@@ -842,8 +838,10 @@ static int rndis_filter_set_packet_filter(struct rndis_device *dev,
                &new_filter, sizeof(u32));
 
         ret = rndis_filter_send_request(dev, request);
-        if (ret == 0)
+        if (ret == 0) {
                 wait_for_completion(&request->wait_event);
+                dev->filter = new_filter;
+        }
 
         put_rndis_request(dev, request);
 
@@ -854,15 +852,19 @@ static void rndis_set_multicast(struct work_struct *w)
 {
         struct rndis_device *rdev
                 = container_of(w, struct rndis_device, mcast_work);
+        u32 filter = NDIS_PACKET_TYPE_DIRECTED;
+        unsigned int flags = rdev->ndev->flags;
 
-        if (rdev->ndev->flags & IFF_PROMISC)
-                rndis_filter_set_packet_filter(rdev,
-                                               NDIS_PACKET_TYPE_PROMISCUOUS);
-        else
-                rndis_filter_set_packet_filter(rdev,
-                                               NDIS_PACKET_TYPE_BROADCAST |
-                                               NDIS_PACKET_TYPE_ALL_MULTICAST |
-                                               NDIS_PACKET_TYPE_DIRECTED);
+        if (flags & IFF_PROMISC) {
+                filter = NDIS_PACKET_TYPE_PROMISCUOUS;
+        } else {
+                if (flags & IFF_ALLMULTI)
+                        filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
+                if (flags & IFF_BROADCAST)
+                        filter |= NDIS_PACKET_TYPE_BROADCAST;
+        }
+
+        rndis_filter_set_packet_filter(rdev, filter);
 }
 
 void rndis_filter_update(struct netvsc_device *nvdev)
@@ -1116,6 +1118,7 @@ void rndis_set_subchannel(struct work_struct *w)
         for (i = 0; i < VRSS_SEND_TAB_SIZE; i++)
                 ndev_ctx->tx_table[i] = i % nvdev->num_chn;
 
+        netif_device_attach(ndev);
         rtnl_unlock();
         return;
 
@@ -1126,6 +1129,8 @@ failed:
 
         nvdev->max_chn = 1;
         nvdev->num_chn = 1;
+
+        netif_device_attach(ndev);
 unlock:
         rtnl_unlock();
 }
@@ -1328,6 +1333,10 @@ out:
                 net_device->num_chn = 1;
         }
 
+        /* No sub channels, device is ready */
+        if (net_device->num_chn == 1)
+                netif_device_attach(net);
+
         return net_device;
 
 err_dev_remv:
@@ -1346,7 +1355,6 @@ void rndis_filter_device_remove(struct hv_device *dev,
         net_dev->extension = NULL;
 
         netvsc_device_remove(dev);
-        kfree(rndis_dev);
 }
 
 int rndis_filter_open(struct netvsc_device *nvdev)
@@ -1364,10 +1372,3 @@ int rndis_filter_close(struct netvsc_device *nvdev)
 
         return rndis_filter_close_device(nvdev->extension);
 }
-
-bool rndis_filter_opened(const struct netvsc_device *nvdev)
-{
-        const struct rndis_device *dev = nvdev->extension;
-
-        return dev->state == RNDIS_DEV_DATAINITIALIZED;
-}
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 7de88b33d5b9..9cbb0c8a896a 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -3277,7 +3277,7 @@ static int macsec_newlink(struct net *net, struct net_device *dev,
 
         err = netdev_upper_dev_link(real_dev, dev, extack);
         if (err < 0)
-                goto unregister;
+                goto put_dev;
 
         /* need to be already registered so that ->init has run and
          * the MAC addr is set
@@ -3316,7 +3316,8 @@ del_dev:
         macsec_del_dev(macsec);
 unlink:
         netdev_upper_dev_unlink(real_dev, dev);
-unregister:
+put_dev:
+        dev_put(real_dev);
         unregister_netdevice(dev);
         return err;
 }
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index a0f2be81d52e..725f4b4afc6d 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -1036,7 +1036,7 @@ static netdev_features_t macvlan_fix_features(struct net_device *dev,
         lowerdev_features &= (features | ~NETIF_F_LRO);
         features = netdev_increment_features(lowerdev_features, features, mask);
         features |= ALWAYS_ON_FEATURES;
-        features &= ~NETIF_F_NETNS_LOCAL;
+        features &= (ALWAYS_ON_FEATURES | MACVLAN_FEATURES);
 
         return features;
 }
@@ -1451,7 +1451,7 @@ destroy_macvlan_port:
         /* the macvlan port may be freed by macvlan_uninit when fail to register.
          * so we destroy the macvlan port only when it's valid.
          */
-        if (create && macvlan_port_get_rtnl(dev))
+        if (create && macvlan_port_get_rtnl(lowerdev))
                 macvlan_port_destroy(port->dev);
         return err;
 }
diff --git a/drivers/net/phy/bcm-phy-lib.c b/drivers/net/phy/bcm-phy-lib.c
index 171010eb4d9c..5ad130c3da43 100644
--- a/drivers/net/phy/bcm-phy-lib.c
+++ b/drivers/net/phy/bcm-phy-lib.c
@@ -341,8 +341,8 @@ void bcm_phy_get_strings(struct phy_device *phydev, u8 *data)
         unsigned int i;
 
         for (i = 0; i < ARRAY_SIZE(bcm_phy_hw_stats); i++)
-                memcpy(data + i * ETH_GSTRING_LEN,
-                       bcm_phy_hw_stats[i].string, ETH_GSTRING_LEN);
+                strlcpy(data + i * ETH_GSTRING_LEN,
+                        bcm_phy_hw_stats[i].string, ETH_GSTRING_LEN);
 }
 EXPORT_SYMBOL_GPL(bcm_phy_get_strings);
 
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 22d9bc9c33a4..0e0978d8a0eb 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -1452,8 +1452,8 @@ static void marvell_get_strings(struct phy_device *phydev, u8 *data)
         int i;
 
         for (i = 0; i < ARRAY_SIZE(marvell_hw_stats); i++) {
-                memcpy(data + i * ETH_GSTRING_LEN,
-                       marvell_hw_stats[i].string, ETH_GSTRING_LEN);
+                strlcpy(data + i * ETH_GSTRING_LEN,
+                        marvell_hw_stats[i].string, ETH_GSTRING_LEN);
         }
 }
 
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 0f45310300f6..f41b224a9cdb 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -635,25 +635,6 @@ static int ksz8873mll_config_aneg(struct phy_device *phydev)
         return 0;
 }
 
-/* This routine returns -1 as an indication to the caller that the
- * Micrel ksz9021 10/100/1000 PHY does not support standard IEEE
- * MMD extended PHY registers.
- */
-static int
-ksz9021_rd_mmd_phyreg(struct phy_device *phydev, int devad, u16 regnum)
-{
-        return -1;
-}
-
-/* This routine does nothing since the Micrel ksz9021 does not support
- * standard IEEE MMD extended PHY registers.
- */
-static int
-ksz9021_wr_mmd_phyreg(struct phy_device *phydev, int devad, u16 regnum, u16 val)
-{
-        return -1;
-}
-
 static int kszphy_get_sset_count(struct phy_device *phydev)
 {
         return ARRAY_SIZE(kszphy_hw_stats);
@@ -664,8 +645,8 @@ static void kszphy_get_strings(struct phy_device *phydev, u8 *data)
         int i;
 
         for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++) {
-                memcpy(data + i * ETH_GSTRING_LEN,
-                       kszphy_hw_stats[i].string, ETH_GSTRING_LEN);
+                strlcpy(data + i * ETH_GSTRING_LEN,
+                        kszphy_hw_stats[i].string, ETH_GSTRING_LEN);
         }
 }
 
@@ -946,8 +927,8 @@ static struct phy_driver ksphy_driver[] = {
         .get_stats      = kszphy_get_stats,
         .suspend        = genphy_suspend,
         .resume         = genphy_resume,
-        .read_mmd       = ksz9021_rd_mmd_phyreg,
-        .write_mmd      = ksz9021_wr_mmd_phyreg,
+        .read_mmd       = genphy_read_mmd_unsupported,
+        .write_mmd      = genphy_write_mmd_unsupported,
 }, {
         .phy_id         = PHY_ID_KSZ9031,
         .phy_id_mask    = MICREL_PHY_ID_MASK,
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index e3e29c2b028b..9aabfa1a455a 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -618,6 +618,77 @@ static void phy_error(struct phy_device *phydev)
 }
 
 /**
+ * phy_disable_interrupts - Disable the PHY interrupts from the PHY side
+ * @phydev: target phy_device struct
+ */
+static int phy_disable_interrupts(struct phy_device *phydev)
+{
+        int err;
+
+        /* Disable PHY interrupts */
+        err = phy_config_interrupt(phydev, PHY_INTERRUPT_DISABLED);
+        if (err)
+                goto phy_err;
+
+        /* Clear the interrupt */
+        err = phy_clear_interrupt(phydev);
+        if (err)
+                goto phy_err;
+
+        return 0;
+
+phy_err:
+        phy_error(phydev);
+
+        return err;
+}
+
+/**
+ * phy_change - Called by the phy_interrupt to handle PHY changes
+ * @phydev: phy_device struct that interrupted
+ */
+static irqreturn_t phy_change(struct phy_device *phydev)
+{
+        if (phy_interrupt_is_valid(phydev)) {
+                if (phydev->drv->did_interrupt &&
+                    !phydev->drv->did_interrupt(phydev))
+                        return IRQ_NONE;
+
+                if (phydev->state == PHY_HALTED)
+                        if (phy_disable_interrupts(phydev))
+                                goto phy_err;
+        }
+
+        mutex_lock(&phydev->lock);
+        if ((PHY_RUNNING == phydev->state) || (PHY_NOLINK == phydev->state))
+                phydev->state = PHY_CHANGELINK;
+        mutex_unlock(&phydev->lock);
+
+        /* reschedule state queue work to run as soon as possible */
+        phy_trigger_machine(phydev, true);
+
+        if (phy_interrupt_is_valid(phydev) && phy_clear_interrupt(phydev))
+                goto phy_err;
+        return IRQ_HANDLED;
+
+phy_err:
+        phy_error(phydev);
+        return IRQ_NONE;
+}
+
+/**
+ * phy_change_work - Scheduled by the phy_mac_interrupt to handle PHY changes
+ * @work: work_struct that describes the work to be done
+ */
+void phy_change_work(struct work_struct *work)
+{
+        struct phy_device *phydev =
+                container_of(work, struct phy_device, phy_queue);
+
+        phy_change(phydev);
+}
+
+/**
  * phy_interrupt - PHY interrupt handler
  * @irq: interrupt line
  * @phy_dat: phy_device pointer
@@ -632,9 +703,7 @@ static irqreturn_t phy_interrupt(int irq, void *phy_dat)
         if (PHY_HALTED == phydev->state)
                 return IRQ_NONE;                /* It can't be ours.  */
 
-        phy_change(phydev);
-
-        return IRQ_HANDLED;
+        return phy_change(phydev);
 }
 
 /**
@@ -652,32 +721,6 @@ static int phy_enable_interrupts(struct phy_device *phydev)
 }
 
 /**
- * phy_disable_interrupts - Disable the PHY interrupts from the PHY side
- * @phydev: target phy_device struct
- */
-static int phy_disable_interrupts(struct phy_device *phydev)
-{
-        int err;
-
-        /* Disable PHY interrupts */
-        err = phy_config_interrupt(phydev, PHY_INTERRUPT_DISABLED);
-        if (err)
-                goto phy_err;
-
-        /* Clear the interrupt */
-        err = phy_clear_interrupt(phydev);
-        if (err)
-                goto phy_err;
-
-        return 0;
-
-phy_err:
-        phy_error(phydev);
-
-        return err;
-}
-
-/**
  * phy_start_interrupts - request and enable interrupts for a PHY device
  * @phydev: target phy_device struct
  *
@@ -720,50 +763,6 @@ int phy_stop_interrupts(struct phy_device *phydev)
 EXPORT_SYMBOL(phy_stop_interrupts);
 
 /**
- * phy_change - Called by the phy_interrupt to handle PHY changes
- * @phydev: phy_device struct that interrupted
- */
-void phy_change(struct phy_device *phydev)
-{
-        if (phy_interrupt_is_valid(phydev)) {
-                if (phydev->drv->did_interrupt &&
-                    !phydev->drv->did_interrupt(phydev))
-                        return;
-
-                if (phydev->state == PHY_HALTED)
-                        if (phy_disable_interrupts(phydev))
-                                goto phy_err;
-        }
-
-        mutex_lock(&phydev->lock);
-        if ((PHY_RUNNING == phydev->state) || (PHY_NOLINK == phydev->state))
-                phydev->state = PHY_CHANGELINK;
-        mutex_unlock(&phydev->lock);
-
-        /* reschedule state queue work to run as soon as possible */
-        phy_trigger_machine(phydev, true);
-
-        if (phy_interrupt_is_valid(phydev) && phy_clear_interrupt(phydev))
-                goto phy_err;
-        return;
-
-phy_err:
-        phy_error(phydev);
-}
-
-/**
- * phy_change_work - Scheduled by the phy_mac_interrupt to handle PHY changes
- * @work: work_struct that describes the work to be done
- */
-void phy_change_work(struct work_struct *work)
-{
-        struct phy_device *phydev =
-                container_of(work, struct phy_device, phy_queue);
-
-        phy_change(phydev);
-}
-
-/**
  * phy_stop - Bring down the PHY link, and stop checking the status
  * @phydev: target phy_device struct
  */
@@ -819,7 +818,7 @@ void phy_start(struct phy_device *phydev)
                 break;
         case PHY_HALTED:
                 /* if phy was suspended, bring the physical link up again */
-                phy_resume(phydev);
+                __phy_resume(phydev);
 
                 /* make sure interrupts are re-enabled for the PHY */
                 if (phy_interrupt_is_valid(phydev)) {
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index b13eed21c87d..74664a6c0cdc 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -135,9 +135,7 @@ static int mdio_bus_phy_resume(struct device *dev)
         if (!mdio_bus_phy_may_suspend(phydev))
                 goto no_resume;
 
-        mutex_lock(&phydev->lock);
         ret = phy_resume(phydev);
-        mutex_unlock(&phydev->lock);
         if (ret < 0)
                 return ret;
 
@@ -1014,10 +1012,17 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
         err = sysfs_create_link(&phydev->mdio.dev.kobj, &dev->dev.kobj,
                                 "attached_dev");
         if (!err) {
-                err = sysfs_create_link(&dev->dev.kobj, &phydev->mdio.dev.kobj,
-                                        "phydev");
-                if (err)
-                        goto error;
+                err = sysfs_create_link_nowarn(&dev->dev.kobj,
+                                               &phydev->mdio.dev.kobj,
+                                               "phydev");
+                if (err) {
+                        dev_err(&dev->dev, "could not add device link to %s err %d\n",
+                                kobject_name(&phydev->mdio.dev.kobj),
+                                err);
+                        /* non-fatal - some net drivers can use one netdevice
+                         * with more then one phy
+                         */
+                }
 
                 phydev->sysfs_links = true;
         }
@@ -1041,9 +1046,7 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
         if (err)
                 goto error;
 
-        mutex_lock(&phydev->lock);
         phy_resume(phydev);
-        mutex_unlock(&phydev->lock);
         phy_led_triggers_register(phydev);
 
         return err;
@@ -1172,7 +1175,7 @@ int phy_suspend(struct phy_device *phydev)
 }
 EXPORT_SYMBOL(phy_suspend);
 
-int phy_resume(struct phy_device *phydev)
+int __phy_resume(struct phy_device *phydev)
 {
         struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver);
         int ret = 0;
@@ -1189,6 +1192,18 @@ int phy_resume(struct phy_device *phydev)
 
         return ret;
 }
+EXPORT_SYMBOL(__phy_resume);
+
+int phy_resume(struct phy_device *phydev)
+{
+        int ret;
+
+        mutex_lock(&phydev->lock);
+        ret = __phy_resume(phydev);
+        mutex_unlock(&phydev->lock);
+
+        return ret;
+}
 EXPORT_SYMBOL(phy_resume);
 
 int phy_loopback(struct phy_device *phydev, bool enable)
@@ -1382,7 +1397,7 @@ int genphy_setup_forced(struct phy_device *phydev)
                 ctl |= BMCR_FULLDPLX;
 
         return phy_modify(phydev, MII_BMCR,
-                          BMCR_LOOPBACK | BMCR_ISOLATE | BMCR_PDOWN, ctl);
+                          ~(BMCR_LOOPBACK | BMCR_ISOLATE | BMCR_PDOWN), ctl);
 }
 EXPORT_SYMBOL(genphy_setup_forced);
 
@@ -1658,6 +1673,23 @@ int genphy_config_init(struct phy_device *phydev)
 }
 EXPORT_SYMBOL(genphy_config_init);
 
+/* This is used for the phy device which doesn't support the MMD extended
+ * register access, but it does have side effect when we are trying to access
+ * the MMD register via indirect method.
+ */
+int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad, u16 regnum)
+{
+        return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(genphy_read_mmd_unsupported);
+
+int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
+                                 u16 regnum, u16 val)
+{
+        return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(genphy_write_mmd_unsupported);
+
 int genphy_suspend(struct phy_device *phydev)
 {
         return phy_set_bits(phydev, MII_BMCR, BMCR_PDOWN);
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index ee3ca4a2f12b..9f48ecf9c627 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -172,6 +172,8 @@ static struct phy_driver realtek_drvs[] = {
                 .flags          = PHY_HAS_INTERRUPT,
                 .ack_interrupt  = &rtl821x_ack_interrupt,
                 .config_intr    = &rtl8211b_config_intr,
+                .read_mmd       = &genphy_read_mmd_unsupported,
+                .write_mmd      = &genphy_write_mmd_unsupported,
         }, {
                 .phy_id         = 0x001cc914,
                 .name           = "RTL8211DN Gigabit Ethernet",
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index 255a5def56e9..da1937832c99 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -257,7 +257,7 @@ struct ppp_net {
 /* Prototypes. */
 static int ppp_unattached_ioctl(struct net *net, struct ppp_file *pf,
                         struct file *file, unsigned int cmd, unsigned long arg);
-static void ppp_xmit_process(struct ppp *ppp);
+static void ppp_xmit_process(struct ppp *ppp, struct sk_buff *skb);
 static void ppp_send_frame(struct ppp *ppp, struct sk_buff *skb);
 static void ppp_push(struct ppp *ppp);
 static void ppp_channel_push(struct channel *pch);
@@ -513,13 +513,12 @@ static ssize_t ppp_write(struct file *file, const char __user *buf,
                 goto out;
         }
 
-        skb_queue_tail(&pf->xq, skb);
-
         switch (pf->kind) {
         case INTERFACE:
-                ppp_xmit_process(PF_TO_PPP(pf));
+                ppp_xmit_process(PF_TO_PPP(pf), skb);
                 break;
         case CHANNEL:
+                skb_queue_tail(&pf->xq, skb);
                 ppp_channel_push(PF_TO_CHANNEL(pf));
                 break;
         }
@@ -1267,8 +1266,8 @@ ppp_start_xmit(struct sk_buff *skb, struct net_device *dev)
         put_unaligned_be16(proto, pp);
 
         skb_scrub_packet(skb, !net_eq(ppp->ppp_net, dev_net(dev)));
-        skb_queue_tail(&ppp->file.xq, skb);
-        ppp_xmit_process(ppp);
+        ppp_xmit_process(ppp, skb);
+
         return NETDEV_TX_OK;
 
  outf:
@@ -1420,13 +1419,14 @@ static void ppp_setup(struct net_device *dev)
  */
 
 /* Called to do any work queued up on the transmit side that can now be done */
-static void __ppp_xmit_process(struct ppp *ppp)
+static void __ppp_xmit_process(struct ppp *ppp, struct sk_buff *skb)
 {
-        struct sk_buff *skb;
-
         ppp_xmit_lock(ppp);
         if (!ppp->closing) {
                 ppp_push(ppp);
+
+                if (skb)
+                        skb_queue_tail(&ppp->file.xq, skb);
                 while (!ppp->xmit_pending &&
                        (skb = skb_dequeue(&ppp->file.xq)))
                         ppp_send_frame(ppp, skb);
@@ -1440,7 +1440,7 @@ static void __ppp_xmit_process(struct ppp *ppp)
         ppp_xmit_unlock(ppp);
 }
 
-static void ppp_xmit_process(struct ppp *ppp)
+static void ppp_xmit_process(struct ppp *ppp, struct sk_buff *skb)
 {
         local_bh_disable();
 
@@ -1448,7 +1448,7 @@ static void ppp_xmit_process(struct ppp *ppp)
                 goto err;
 
         (*this_cpu_ptr(ppp->xmit_recursion))++;
-        __ppp_xmit_process(ppp);
+        __ppp_xmit_process(ppp, skb);
         (*this_cpu_ptr(ppp->xmit_recursion))--;
 
         local_bh_enable();
@@ -1458,6 +1458,8 @@ static void ppp_xmit_process(struct ppp *ppp)
 err:
         local_bh_enable();
 
+        kfree_skb(skb);
+
         if (net_ratelimit())
                 netdev_err(ppp->dev, "recursion detected\n");
 }
@@ -1942,7 +1944,7 @@ static void __ppp_channel_push(struct channel *pch)
         if (skb_queue_empty(&pch->file.xq)) {
                 ppp = pch->ppp;
                 if (ppp)
-                        __ppp_xmit_process(ppp);
+                        __ppp_xmit_process(ppp, NULL);
         }
 }
 
@@ -3161,6 +3163,15 @@ ppp_connect_channel(struct channel *pch, int unit)
                 goto outl;
 
         ppp_lock(ppp);
+        spin_lock_bh(&pch->downl);
+        if (!pch->chan) {
+                /* Don't connect unregistered channels */
+                spin_unlock_bh(&pch->downl);
+                ppp_unlock(ppp);
+                ret = -ENOTCONN;
+                goto outl;
+        }
+        spin_unlock_bh(&pch->downl);
         if (pch->file.hdrlen > ppp->file.hdrlen)
                 ppp->file.hdrlen = pch->file.hdrlen;
         hdrlen = pch->file.hdrlen + 2;  /* for protocol bytes */
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index a468439969df..56c701b73c12 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2395,7 +2395,7 @@ send_done:
         if (!nlh) {
                 err = __send_and_alloc_skb(&skb, team, portid, send_func);
                 if (err)
-                        goto errout;
+                        return err;
                 goto send_done;
         }
 
@@ -2681,7 +2681,7 @@ send_done:
         if (!nlh) {
                 err = __send_and_alloc_skb(&skb, team, portid, send_func);
                 if (err)
-                        goto errout;
+                        return err;
                 goto send_done;
         }
 
diff --git a/drivers/net/thunderbolt.c b/drivers/net/thunderbolt.c
index ca5e375de27c..e0d6760f3219 100644
--- a/drivers/net/thunderbolt.c
+++ b/drivers/net/thunderbolt.c
@@ -166,6 +166,8 @@ struct tbnet_ring {
  * @connected_work: Worker that finalizes the ThunderboltIP connection
  *                  setup and enables DMA paths for high speed data
  *                  transfers
+ * @disconnect_work: Worker that handles tearing down the ThunderboltIP
+ *                   connection
  * @rx_hdr: Copy of the currently processed Rx frame. Used when a
  *          network packet consists of multiple Thunderbolt frames.
  *          In host byte order.
@@ -190,6 +192,7 @@ struct tbnet {
         int login_retries;
         struct delayed_work login_work;
         struct work_struct connected_work;
+        struct work_struct disconnect_work;
         struct thunderbolt_ip_frame_header rx_hdr;
         struct tbnet_ring rx_ring;
         atomic_t frame_id;
@@ -445,7 +448,7 @@ static int tbnet_handle_packet(const void *buf, size_t size, void *data)
         case TBIP_LOGOUT:
                 ret = tbnet_logout_response(net, route, sequence, command_id);
                 if (!ret)
-                        tbnet_tear_down(net, false);
+                        queue_work(system_long_wq, &net->disconnect_work);
                 break;
 
         default:
@@ -659,6 +662,13 @@ static void tbnet_login_work(struct work_struct *work)
         }
 }
 
+static void tbnet_disconnect_work(struct work_struct *work)
+{
+        struct tbnet *net = container_of(work, typeof(*net), disconnect_work);
+
+        tbnet_tear_down(net, false);
+}
+
 static bool tbnet_check_frame(struct tbnet *net, const struct tbnet_frame *tf,
                               const struct thunderbolt_ip_frame_header *hdr)
 {
@@ -881,6 +891,7 @@ static int tbnet_stop(struct net_device *dev)
 
         napi_disable(&net->napi);
 
+        cancel_work_sync(&net->disconnect_work);
         tbnet_tear_down(net, true);
 
         tb_ring_free(net->rx_ring.ring);
@@ -1195,6 +1206,7 @@ static int tbnet_probe(struct tb_service *svc, const struct tb_service_id *id)
         net = netdev_priv(dev);
         INIT_DELAYED_WORK(&net->login_work, tbnet_login_work);
         INIT_WORK(&net->connected_work, tbnet_connected_work);
+        INIT_WORK(&net->disconnect_work, tbnet_disconnect_work);
         mutex_init(&net->connection_lock);
         atomic_set(&net->command_id, 0);
         atomic_set(&net->frame_id, 0);
@@ -1270,10 +1282,7 @@ static int __maybe_unused tbnet_suspend(struct device *dev)
         stop_login(net);
         if (netif_running(net->dev)) {
                 netif_device_detach(net->dev);
-                tb_ring_stop(net->rx_ring.ring);
-                tb_ring_stop(net->tx_ring.ring);
-                tbnet_free_buffers(&net->rx_ring);
-                tbnet_free_buffers(&net->tx_ring);
+                tbnet_tear_down(net, true);
         }
 
         return 0;
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 81e6cc951e7f..28cfa642e39a 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -181,7 +181,6 @@ struct tun_file {
         struct tun_struct *detached;
         struct ptr_ring tx_ring;
         struct xdp_rxq_info xdp_rxq;
-        int xdp_pending_pkts;
 };
 
 struct tun_flow_entry {
@@ -656,7 +655,7 @@ static struct tun_struct *tun_enable_queue(struct tun_file *tfile)
         return tun;
 }
 
-static void tun_ptr_free(void *ptr)
+void tun_ptr_free(void *ptr)
 {
         if (!ptr)
                 return;
@@ -668,6 +667,7 @@ static void tun_ptr_free(void *ptr)
                 __skb_array_destroy_skb(ptr);
         }
 }
+EXPORT_SYMBOL_GPL(tun_ptr_free);
 
 static void tun_queue_purge(struct tun_file *tfile)
 {
@@ -1489,27 +1489,23 @@ static struct sk_buff *tun_napi_alloc_frags(struct tun_file *tfile,
         skb->truesize += skb->data_len;
 
         for (i = 1; i < it->nr_segs; i++) {
+                struct page_frag *pfrag = &current->task_frag;
                 size_t fragsz = it->iov[i].iov_len;
-                unsigned long offset;
-                struct page *page;
-                void *data;
 
                 if (fragsz == 0 || fragsz > PAGE_SIZE) {
                         err = -EINVAL;
                         goto free;
                 }
 
-                local_bh_disable();
-                data = napi_alloc_frag(fragsz);
-                local_bh_enable();
-                if (!data) {
+                if (!skb_page_frag_refill(fragsz, pfrag, GFP_KERNEL)) {
                         err = -ENOMEM;
                         goto free;
                 }
 
-                page = virt_to_head_page(data);
-                offset = data - page_address(page);
-                skb_fill_page_desc(skb, i - 1, page, offset, fragsz);
+                skb_fill_page_desc(skb, i - 1, pfrag->page,
+                                   pfrag->offset, fragsz);
+                page_ref_inc(pfrag->page);
+                pfrag->offset += fragsz;
         }
 
         return skb;
@@ -1647,6 +1643,7 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun,
         else
                 *skb_xdp = 0;
 
+        preempt_disable();
         rcu_read_lock();
         xdp_prog = rcu_dereference(tun->xdp_prog);
         if (xdp_prog && !*skb_xdp) {
@@ -1666,11 +1663,12 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun,
                 case XDP_REDIRECT:
                         get_page(alloc_frag->page);
                         alloc_frag->offset += buflen;
-                        ++tfile->xdp_pending_pkts;
                         err = xdp_do_redirect(tun->dev, &xdp, xdp_prog);
+                        xdp_do_flush_map();
                         if (err)
                                 goto err_redirect;
                         rcu_read_unlock();
+                        preempt_enable();
                         return NULL;
                 case XDP_TX:
                         xdp_xmit = true;
@@ -1692,6 +1690,7 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun,
         skb = build_skb(buf, buflen);
         if (!skb) {
                 rcu_read_unlock();
+                preempt_enable();
                 return ERR_PTR(-ENOMEM);
         }
 
@@ -1704,10 +1703,12 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun,
                 skb->dev = tun->dev;
                 generic_xdp_tx(skb, xdp_prog);
                 rcu_read_unlock();
+                preempt_enable();
                 return NULL;
         }
 
         rcu_read_unlock();
+        preempt_enable();
 
         return skb;
 
@@ -1715,6 +1716,7 @@ err_redirect:
         put_page(alloc_frag->page);
 err_xdp:
         rcu_read_unlock();
+        preempt_enable();
         this_cpu_inc(tun->pcpu_stats->rx_dropped);
         return NULL;
 }
@@ -1988,11 +1990,6 @@ static ssize_t tun_chr_write_iter(struct kiocb *iocb, struct iov_iter *from)
         result = tun_get_user(tun, tfile, NULL, from,
                               file->f_flags & O_NONBLOCK, false);
 
-        if (tfile->xdp_pending_pkts) {
-                tfile->xdp_pending_pkts = 0;
-                xdp_do_flush_map();
-        }
-
         tun_put(tun);
         return result;
 }
@@ -2329,13 +2326,6 @@ static int tun_sendmsg(struct socket *sock, struct msghdr *m, size_t total_len)
         ret = tun_get_user(tun, tfile, m->msg_control, &m->msg_iter,
                            m->msg_flags & MSG_DONTWAIT,
                            m->msg_flags & MSG_MORE);
-
-        if (tfile->xdp_pending_pkts >= NAPI_POLL_WEIGHT ||
-            !(m->msg_flags & MSG_MORE)) {
-                tfile->xdp_pending_pkts = 0;
-                xdp_do_flush_map();
-        }
-
         tun_put(tun);
         return ret;
 }
@@ -3167,7 +3157,6 @@ static int tun_chr_open(struct inode *inode, struct file * file)
         sock_set_flag(&tfile->sk, SOCK_ZEROCOPY);
 
         memset(&tfile->tx_ring, 0, sizeof(tfile->tx_ring));
-        tfile->xdp_pending_pkts = 0;
 
         return 0;
 }
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 05dca3e5c93d..fff4b13eece2 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -896,6 +896,12 @@ static const struct usb_device_id	products[] = {
                                       USB_CDC_PROTO_NONE),
         .driver_info = (unsigned long)&wwan_info,
 }, {
+        /* Cinterion PLS8 modem by GEMALTO */
+        USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM,
+                                      USB_CDC_SUBCLASS_ETHERNET,
+                                      USB_CDC_PROTO_NONE),
+        .driver_info = (unsigned long)&wwan_info,
+}, {
         USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
                         USB_CDC_PROTO_NONE),
         .driver_info = (unsigned long) &cdc_info,
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 958b2e8b90f6..86f7196f9d91 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1794,7 +1794,7 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
 
                 tx_data += len;
                 agg->skb_len += len;
-                agg->skb_num++;
+                agg->skb_num += skb_shinfo(skb)->gso_segs ?: 1;
 
                 dev_kfree_skb_any(skb);
 
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index d0a113743195..7a6a1fe79309 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -954,10 +954,11 @@ static int smsc75xx_set_features(struct net_device *netdev,
         /* it's racing here! */
 
         ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
-        if (ret < 0)
+        if (ret < 0) {
                 netdev_warn(dev->net, "Error writing RFE_CTL\n");
-
-        return ret;
+                return ret;
+        }
+        return 0;
 }
 
 static int smsc75xx_wait_ready(struct usbnet *dev, int in_pm)
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 8a22ff67b026..d9eea8cfe6cb 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -315,6 +315,7 @@ static void __usbnet_status_stop_force(struct usbnet *dev)
 void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
 {
         struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->stats64);
+        unsigned long flags;
         int     status;
 
         if (test_bit(EVENT_RX_PAUSED, &dev->flags)) {
@@ -326,10 +327,10 @@ void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
         if (skb->protocol == 0)
                 skb->protocol = eth_type_trans (skb, dev->net);
 
-        u64_stats_update_begin(&stats64->syncp);
+        flags = u64_stats_update_begin_irqsave(&stats64->syncp);
         stats64->rx_packets++;
         stats64->rx_bytes += skb->len;
-        u64_stats_update_end(&stats64->syncp);
+        u64_stats_update_end_irqrestore(&stats64->syncp, flags);
 
         netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n",
                   skb->len + sizeof (struct ethhdr), skb->protocol);
@@ -1248,11 +1249,12 @@ static void tx_complete (struct urb *urb)
 
         if (urb->status == 0) {
                 struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->stats64);
+                unsigned long flags;
 
-                u64_stats_update_begin(&stats64->syncp);
+                flags = u64_stats_update_begin_irqsave(&stats64->syncp);
                 stats64->tx_packets += entry->packets;
                 stats64->tx_bytes += entry->length;
-                u64_stats_update_end(&stats64->syncp);
+                u64_stats_update_end_irqrestore(&stats64->syncp, flags);
         } else {
                 dev->net->stats.tx_errors++;
 
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 626c27352ae2..23374603e4d9 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -443,12 +443,8 @@ static bool __virtnet_xdp_xmit(struct virtnet_info *vi,
         sg_init_one(sq->sg, xdp->data, xdp->data_end - xdp->data);
 
         err = virtqueue_add_outbuf(sq->vq, sq->sg, 1, xdp->data, GFP_ATOMIC);
-        if (unlikely(err)) {
-                struct page *page = virt_to_head_page(xdp->data);
-
-                put_page(page);
-                return false;
-        }
+        if (unlikely(err))
+                return false; /* Caller handle free/refcnt */
 
         return true;
 }
@@ -456,8 +452,18 @@ static bool __virtnet_xdp_xmit(struct virtnet_info *vi,
 static int virtnet_xdp_xmit(struct net_device *dev, struct xdp_buff *xdp)
 {
         struct virtnet_info *vi = netdev_priv(dev);
-        bool sent = __virtnet_xdp_xmit(vi, xdp);
+        struct receive_queue *rq = vi->rq;
+        struct bpf_prog *xdp_prog;
+        bool sent;
+
+        /* Only allow ndo_xdp_xmit if XDP is loaded on dev, as this
+         * indicate XDP resources have been successfully allocated.
+         */
+        xdp_prog = rcu_dereference(rq->xdp_prog);
+        if (!xdp_prog)
+                return -ENXIO;
 
+        sent = __virtnet_xdp_xmit(vi, xdp);
         if (!sent)
                 return -ENOSPC;
         return 0;
@@ -498,6 +504,7 @@ static struct page *xdp_linearize_page(struct receive_queue *rq,
         page_off += *len;
 
         while (--*num_buf) {
+                int tailroom = SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
                 unsigned int buflen;
                 void *buf;
                 int off;
@@ -512,7 +519,7 @@ static struct page *xdp_linearize_page(struct receive_queue *rq,
                 /* guard against a misconfigured or uncooperative backend that
                  * is sending packet larger than the MTU.
                  */
-                if ((page_off + buflen) > PAGE_SIZE) {
+                if ((page_off + buflen + tailroom) > PAGE_SIZE) {
                         put_page(p);
                         goto err_buf;
                 }
@@ -546,8 +553,11 @@ static struct sk_buff *receive_small(struct net_device *dev,
         unsigned int buflen = SKB_DATA_ALIGN(GOOD_PACKET_LEN + headroom) +
                               SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
         struct page *page = virt_to_head_page(buf);
-        unsigned int delta = 0, err;
+        unsigned int delta = 0;
         struct page *xdp_page;
+        bool sent;
+        int err;
+
         len -= vi->hdr_len;
 
         rcu_read_lock();
@@ -558,7 +568,7 @@ static struct sk_buff *receive_small(struct net_device *dev,
                 void *orig_data;
                 u32 act;
 
-                if (unlikely(hdr->hdr.gso_type || hdr->hdr.flags))
+                if (unlikely(hdr->hdr.gso_type))
                         goto err_xdp;
 
                 if (unlikely(xdp_headroom < virtnet_get_headroom(vi))) {
@@ -596,16 +606,19 @@ static struct sk_buff *receive_small(struct net_device *dev,
                         delta = orig_data - xdp.data;
                         break;
                 case XDP_TX:
-                        if (unlikely(!__virtnet_xdp_xmit(vi, &xdp)))
+                        sent = __virtnet_xdp_xmit(vi, &xdp);
+                        if (unlikely(!sent)) {
                                 trace_xdp_exception(vi->dev, xdp_prog, act);
-                        else
-                                *xdp_xmit = true;
+                                goto err_xdp;
+                        }
+                        *xdp_xmit = true;
                         rcu_read_unlock();
                         goto xdp_xmit;
                 case XDP_REDIRECT:
                         err = xdp_do_redirect(dev, &xdp, xdp_prog);
-                        if (!err)
-                                *xdp_xmit = true;
+                        if (err)
+                                goto err_xdp;
+                        *xdp_xmit = true;
                         rcu_read_unlock();
                         goto xdp_xmit;
                 default:
@@ -677,6 +690,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
         struct bpf_prog *xdp_prog;
         unsigned int truesize;
         unsigned int headroom = mergeable_ctx_to_headroom(ctx);
+        bool sent;
         int err;
 
         head_skb = NULL;
@@ -689,7 +703,12 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
                 void *data;
                 u32 act;
 
-                /* This happens when rx buffer size is underestimated */
+                /* This happens when rx buffer size is underestimated
+                 * or headroom is not enough because of the buffer
+                 * was refilled before XDP is set. This should only
+                 * happen for the first several packets, so we don't
+                 * care much about its performance.
+                 */
                 if (unlikely(num_buf > 1 ||
                              headroom < virtnet_get_headroom(vi))) {
                         /* linearize data for XDP */
@@ -724,9 +743,6 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
 
                 act = bpf_prog_run_xdp(xdp_prog, &xdp);
 
-                if (act != XDP_PASS)
-                        ewma_pkt_len_add(&rq->mrg_avg_pkt_len, len);
-
                 switch (act) {
                 case XDP_PASS:
                         /* recalculate offset to account for any header
@@ -746,18 +762,28 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
                         }
                         break;
                 case XDP_TX:
-                        if (unlikely(!__virtnet_xdp_xmit(vi, &xdp)))
+                        sent = __virtnet_xdp_xmit(vi, &xdp);
+                        if (unlikely(!sent)) {
                                 trace_xdp_exception(vi->dev, xdp_prog, act);
-                        else
-                                *xdp_xmit = true;
+                                if (unlikely(xdp_page != page))
+                                        put_page(xdp_page);
+                                goto err_xdp;
+                        }
+                        *xdp_xmit = true;
                         if (unlikely(xdp_page != page))
                                 goto err_xdp;
                         rcu_read_unlock();
                         goto xdp_xmit;
                 case XDP_REDIRECT:
                         err = xdp_do_redirect(dev, &xdp, xdp_prog);
-                        if (!err)
-                                *xdp_xmit = true;
+                        if (err) {
+                                if (unlikely(xdp_page != page))
+                                        put_page(xdp_page);
+                                goto err_xdp;
+                        }
+                        *xdp_xmit = true;
+                        if (unlikely(xdp_page != page))
+                                goto err_xdp;
                         rcu_read_unlock();
                         goto xdp_xmit;
                 default:
@@ -1003,13 +1029,18 @@ static int add_recvbuf_big(struct virtnet_info *vi, struct receive_queue *rq,
 }
 
 static unsigned int get_mergeable_buf_len(struct receive_queue *rq,
-                                          struct ewma_pkt_len *avg_pkt_len)
+                                          struct ewma_pkt_len *avg_pkt_len,
+                                          unsigned int room)
 {
         const size_t hdr_len = sizeof(struct virtio_net_hdr_mrg_rxbuf);
         unsigned int len;
 
-        len = hdr_len + clamp_t(unsigned int, ewma_pkt_len_read(avg_pkt_len),
+        if (room)
+                return PAGE_SIZE - room;
+
+        len = hdr_len + clamp_t(unsigned int, ewma_pkt_len_read(avg_pkt_len),
                                 rq->min_buf_len, PAGE_SIZE - hdr_len);
+
         return ALIGN(len, L1_CACHE_BYTES);
 }
 
@@ -1018,21 +1049,27 @@ static int add_recvbuf_mergeable(struct virtnet_info *vi,
 {
         struct page_frag *alloc_frag = &rq->alloc_frag;
         unsigned int headroom = virtnet_get_headroom(vi);
+        unsigned int tailroom = headroom ? sizeof(struct skb_shared_info) : 0;
+        unsigned int room = SKB_DATA_ALIGN(headroom + tailroom);
         char *buf;
         void *ctx;
         int err;
         unsigned int len, hole;
 
-        len = get_mergeable_buf_len(rq, &rq->mrg_avg_pkt_len);
-        if (unlikely(!skb_page_frag_refill(len + headroom, alloc_frag, gfp)))
+        /* Extra tailroom is needed to satisfy XDP's assumption. This
+         * means rx frags coalescing won't work, but consider we've
+         * disabled GSO for XDP, it won't be a big issue.
+         */
+        len = get_mergeable_buf_len(rq, &rq->mrg_avg_pkt_len, room);
+        if (unlikely(!skb_page_frag_refill(len + room, alloc_frag, gfp)))
                 return -ENOMEM;
 
         buf = (char *)page_address(alloc_frag->page) + alloc_frag->offset;
         buf += headroom; /* advance address leaving hole at front of pkt */
         get_page(alloc_frag->page);
-        alloc_frag->offset += len + headroom;
+        alloc_frag->offset += len + room;
         hole = alloc_frag->size - alloc_frag->offset;
-        if (hole < len + headroom) {
+        if (hole < len + room) {
                 /* To avoid internal fragmentation, if there is very likely not
                  * enough space for another buffer, add the remaining space to
                  * the current buffer.
@@ -2175,8 +2212,9 @@ static int virtnet_xdp_set(struct net_device *dev, struct bpf_prog *prog,
         }
 
         /* Make sure NAPI is not using any XDP TX queues for RX. */
-        for (i = 0; i < vi->max_queue_pairs; i++)
-                napi_disable(&vi->rq[i].napi);
+        if (netif_running(dev))
+                for (i = 0; i < vi->max_queue_pairs; i++)
+                        napi_disable(&vi->rq[i].napi);
 
         netif_set_real_num_rx_queues(dev, curr_qp + xdp_qp);
         err = _virtnet_set_queues(vi, curr_qp + xdp_qp);
@@ -2195,7 +2233,8 @@ static int virtnet_xdp_set(struct net_device *dev, struct bpf_prog *prog,
                 }
                 if (old_prog)
                         bpf_prog_put(old_prog);
-                virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi);
+                if (netif_running(dev))
+                        virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi);
         }
 
         return 0;
@@ -2566,12 +2605,15 @@ static ssize_t mergeable_rx_buffer_size_show(struct netdev_rx_queue *queue,
 {
         struct virtnet_info *vi = netdev_priv(queue->dev);
         unsigned int queue_index = get_netdev_rx_queue_index(queue);
+        unsigned int headroom = virtnet_get_headroom(vi);
+        unsigned int tailroom = headroom ? sizeof(struct skb_shared_info) : 0;
         struct ewma_pkt_len *avg;
 
         BUG_ON(queue_index >= vi->max_queue_pairs);
         avg = &vi->rq[queue_index].mrg_avg_pkt_len;
         return sprintf(buf, "%u\n",
-                       get_mergeable_buf_len(&vi->rq[queue_index], avg));
+                       get_mergeable_buf_len(&vi->rq[queue_index], avg,
+                                       SKB_DATA_ALIGN(headroom + tailroom)));
 }
 
 static struct rx_queue_attribute mergeable_rx_buffer_size_attribute =
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 8b39c160743d..e04937f44f33 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -977,6 +977,8 @@ vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq,
 {
         int ret;
         u32 count;
+        int num_pkts;
+        int tx_num_deferred;
         unsigned long flags;
         struct vmxnet3_tx_ctx ctx;
         union Vmxnet3_GenericDesc *gdesc;
@@ -1075,12 +1077,12 @@ vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq,
 #else
         gdesc = ctx.sop_txd;
 #endif
+        tx_num_deferred = le32_to_cpu(tq->shared->txNumDeferred);
         if (ctx.mss) {
                 gdesc->txd.hlen = ctx.eth_ip_hdr_size + ctx.l4_hdr_size;
                 gdesc->txd.om = VMXNET3_OM_TSO;
                 gdesc->txd.msscof = ctx.mss;
-                le32_add_cpu(&tq->shared->txNumDeferred, (skb->len -
-                             gdesc->txd.hlen + ctx.mss - 1) / ctx.mss);
+                num_pkts = (skb->len - gdesc->txd.hlen + ctx.mss - 1) / ctx.mss;
         } else {
                 if (skb->ip_summed == CHECKSUM_PARTIAL) {
                         gdesc->txd.hlen = ctx.eth_ip_hdr_size;
@@ -1091,8 +1093,10 @@ vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq,
                         gdesc->txd.om = 0;
                         gdesc->txd.msscof = 0;
                 }
-                le32_add_cpu(&tq->shared->txNumDeferred, 1);
+                num_pkts = 1;
         }
+        le32_add_cpu(&tq->shared->txNumDeferred, num_pkts);
+        tx_num_deferred += num_pkts;
 
         if (skb_vlan_tag_present(skb)) {
                 gdesc->txd.ti = 1;
@@ -1118,8 +1122,7 @@ vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq,
 
         spin_unlock_irqrestore(&tq->tx_lock, flags);
 
-        if (le32_to_cpu(tq->shared->txNumDeferred) >=
-                                        le32_to_cpu(tq->shared->txThreshold)) {
+        if (tx_num_deferred >= le32_to_cpu(tq->shared->txThreshold)) {
                 tq->shared->txNumDeferred = 0;
                 VMXNET3_WRITE_BAR0_REG(adapter,
                                        VMXNET3_REG_TXPROD + tq->qid * 8,
@@ -1470,7 +1473,8 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq,
                         vmxnet3_rx_csum(adapter, skb,
                                         (union Vmxnet3_GenericDesc *)rcd);
                         skb->protocol = eth_type_trans(skb, adapter->netdev);
-                        if (!rcd->tcp || !adapter->lro)
+                        if (!rcd->tcp ||
+                            !(adapter->netdev->features & NETIF_F_LRO))
                                 goto not_lro;
 
                         if (segCnt != 0 && mss != 0) {
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index 5ba222920e80..59ec34052a65 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -69,10 +69,10 @@
 /*
  * Version numbers
  */
-#define VMXNET3_DRIVER_VERSION_STRING   "1.4.11.0-k"
+#define VMXNET3_DRIVER_VERSION_STRING   "1.4.13.0-k"
 
 /* a 32-bit int, each byte encode a verion number in VMXNET3_DRIVER_VERSION */
-#define VMXNET3_DRIVER_VERSION_NUM      0x01040b00
+#define VMXNET3_DRIVER_VERSION_NUM      0x01040d00
 
 #if defined(CONFIG_PCI_MSI)
         /* RSS only makes sense if MSI-X is supported. */
@@ -342,9 +342,6 @@ struct vmxnet3_adapter {
         u8                      __iomem *hw_addr1; /* for BAR 1 */
         u8                              version;
 
-        bool                            rxcsum;
-        bool                            lro;
-
 #ifdef VMXNET3_RSS
         struct UPT1_RSSConf             *rss_conf;
         bool                            rss;
diff --git a/drivers/net/wan/hdlc_ppp.c b/drivers/net/wan/hdlc_ppp.c
index afeca6bcdade..ab8b3cbbb205 100644
--- a/drivers/net/wan/hdlc_ppp.c
+++ b/drivers/net/wan/hdlc_ppp.c
@@ -574,7 +574,10 @@ static void ppp_timer(struct timer_list *t)
                         ppp_cp_event(proto->dev, proto->pid, TO_GOOD, 0, 0,
                                      0, NULL);
                         proto->restart_counter--;
-                } else
+                } else if (netif_carrier_ok(proto->dev))
+                        ppp_cp_event(proto->dev, proto->pid, TO_GOOD, 0, 0,
+                                     0, NULL);
+                else
                         ppp_cp_event(proto->dev, proto->pid, TO_BAD, 0, 0,
                                      0, NULL);
                 break;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index e89e5ef2c2a4..f246e9ed4a81 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -729,6 +729,7 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
         ieee80211_hw_set(hw, SPECTRUM_MGMT);
         ieee80211_hw_set(hw, SIGNAL_DBM);
         ieee80211_hw_set(hw, AMPDU_AGGREGATION);
+        ieee80211_hw_set(hw, DOESNT_SUPPORT_QOS_NDP);
 
         if (ath9k_ps_enable)
                 ieee80211_hw_set(hw, SUPPORTS_PS);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
index df8a1ecb9924..232dcbb83311 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
@@ -181,6 +181,7 @@ enum brcmf_netif_stop_reason {
  * @netif_stop_lock: spinlock for update netif_stop from multiple sources.
  * @pend_8021x_cnt: tracks outstanding number of 802.1x frames.
  * @pend_8021x_wait: used for signalling change in count.
+ * @fwil_fwerr: flag indicating fwil layer should return firmware error codes.
  */
 struct brcmf_if {
         struct brcmf_pub *drvr;
@@ -198,6 +199,7 @@ struct brcmf_if {
         wait_queue_head_t pend_8021x_wait;
         struct in6_addr ipv6_addr_tbl[NDOL_MAX_ENTRIES];
         u8 ipv6addr_idx;
+        bool fwil_fwerr;
 };
 
 int brcmf_netdev_wait_pend8021x(struct brcmf_if *ifp);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
index 47de35a33853..bede7b7fd996 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
@@ -104,6 +104,9 @@ static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp,
         u32 data;
         int err;
 
+        /* we need to know firmware error */
+        ifp->fwil_fwerr = true;
+
         err = brcmf_fil_iovar_int_get(ifp, name, &data);
         if (err == 0) {
                 brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]);
@@ -112,6 +115,8 @@ static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp,
                 brcmf_dbg(TRACE, "%s feature check failed: %d\n",
                           brcmf_feat_names[id], err);
         }
+
+        ifp->fwil_fwerr = false;
 }
 
 static void brcmf_feat_iovar_data_set(struct brcmf_if *ifp,
@@ -120,6 +125,9 @@ static void brcmf_feat_iovar_data_set(struct brcmf_if *ifp,
 {
         int err;
 
+        /* we need to know firmware error */
+        ifp->fwil_fwerr = true;
+
         err = brcmf_fil_iovar_data_set(ifp, name, data, len);
         if (err != -BRCMF_FW_UNSUPPORTED) {
                 brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]);
@@ -128,6 +136,8 @@ static void brcmf_feat_iovar_data_set(struct brcmf_if *ifp,
                 brcmf_dbg(TRACE, "%s feature check failed: %d\n",
                           brcmf_feat_names[id], err);
         }
+
+        ifp->fwil_fwerr = false;
 }
 
 #define MAX_CAPS_BUFFER_SIZE    512
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
index f2cfdd3b2bf1..fc5751116d99 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
@@ -131,6 +131,9 @@ brcmf_fil_cmd_data(struct brcmf_if *ifp, u32 cmd, void *data, u32 len, bool set)
                           brcmf_fil_get_errstr((u32)(-fwerr)), fwerr);
                 err = -EBADE;
         }
+        if (ifp->fwil_fwerr)
+                return fwerr;
+
         return err;
 }
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
index 2ee54133efa1..82064e909784 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
@@ -462,25 +462,23 @@ static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac)
  * @dev_addr: optional device address.
  *
  * P2P needs mac addresses for P2P device and interface. If no device
- * address it specified, these are derived from the primary net device, ie.
- * the permanent ethernet address of the device.
+ * address it specified, these are derived from a random ethernet
+ * address.
  */
 static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p, u8 *dev_addr)
 {
-        struct brcmf_if *pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
-        bool local_admin = false;
+        bool random_addr = false;
 
-        if (!dev_addr || is_zero_ether_addr(dev_addr)) {
-                dev_addr = pri_ifp->mac_addr;
-                local_admin = true;
-        }
+        if (!dev_addr || is_zero_ether_addr(dev_addr))
+                random_addr = true;
 
-        /* Generate the P2P Device Address.  This consists of the device's
-         * primary MAC address with the locally administered bit set.
+        /* Generate the P2P Device Address obtaining a random ethernet
+         * address with the locally administered bit set.
          */
-        memcpy(p2p->dev_addr, dev_addr, ETH_ALEN);
-        if (local_admin)
-                p2p->dev_addr[0] |= 0x02;
+        if (random_addr)
+                eth_random_addr(p2p->dev_addr);
+        else
+                memcpy(p2p->dev_addr, dev_addr, ETH_ALEN);
 
         /* Generate the P2P Interface Address.  If the discovery and connection
          * BSSCFGs need to simultaneously co-exist, then this address must be
diff --git a/drivers/net/wireless/intel/iwlwifi/Kconfig b/drivers/net/wireless/intel/iwlwifi/Kconfig
index c5f2ddf9b0fe..e5a2fc738ac3 100644
--- a/drivers/net/wireless/intel/iwlwifi/Kconfig
+++ b/drivers/net/wireless/intel/iwlwifi/Kconfig
@@ -91,7 +91,6 @@ config IWLWIFI_BCAST_FILTERING
 config IWLWIFI_PCIE_RTPM
        bool "Enable runtime power management mode for PCIe devices"
        depends on IWLMVM && PM && EXPERT
-       default false
        help
          Say Y here to enable runtime power management for PCIe
          devices.  If enabled, the device will go into low power mode
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/time-event.h b/drivers/net/wireless/intel/iwlwifi/fw/api/time-event.h
index 3721a3ed358b..f824bebceb06 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/time-event.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/time-event.h
@@ -211,7 +211,7 @@ enum {
  * @TE_V2_NOTIF_HOST_FRAG_END:request/receive notification on frag end
  * @TE_V2_NOTIF_INTERNAL_FRAG_START: internal FW use.
  * @TE_V2_NOTIF_INTERNAL_FRAG_END: internal FW use.
- * @T2_V2_START_IMMEDIATELY: start time event immediately
+ * @TE_V2_START_IMMEDIATELY: start time event immediately
  * @TE_V2_DEP_OTHER: depends on another time event
  * @TE_V2_DEP_TSF: depends on a specific time
  * @TE_V2_EVENT_SOCIOPATHIC: can't co-exist with other events of tha same MAC
@@ -230,7 +230,7 @@ enum iwl_time_event_policy {
         TE_V2_NOTIF_HOST_FRAG_END = BIT(5),
         TE_V2_NOTIF_INTERNAL_FRAG_START = BIT(6),
         TE_V2_NOTIF_INTERNAL_FRAG_END = BIT(7),
-        T2_V2_START_IMMEDIATELY = BIT(11),
+        TE_V2_START_IMMEDIATELY = BIT(11),
 
         /* placement characteristics */
         TE_V2_DEP_OTHER = BIT(TE_V2_PLACEMENT_POS),
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 67aefc8fc9ac..7bd704a3e640 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -8,6 +8,7 @@
  * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018        Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -33,6 +34,7 @@
  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018        Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -942,7 +944,6 @@ dump_trans_data:
 
 out:
         iwl_fw_free_dump_desc(fwrt);
-        fwrt->dump.trig = NULL;
         clear_bit(IWL_FWRT_STATUS_DUMPING, &fwrt->status);
         IWL_DEBUG_INFO(fwrt, "WRT dump done\n");
 }
@@ -1112,6 +1113,14 @@ void iwl_fw_error_dump_wk(struct work_struct *work)
             fwrt->ops->dump_start(fwrt->ops_ctx))
                 return;
 
+        if (fwrt->ops && fwrt->ops->fw_running &&
+            !fwrt->ops->fw_running(fwrt->ops_ctx)) {
+                IWL_ERR(fwrt, "Firmware not running - cannot dump error\n");
+                iwl_fw_free_dump_desc(fwrt);
+                clear_bit(IWL_FWRT_STATUS_DUMPING, &fwrt->status);
+                goto out;
+        }
+
         if (fwrt->trans->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
                 /* stop recording */
                 iwl_fw_dbg_stop_recording(fwrt);
@@ -1145,7 +1154,7 @@ void iwl_fw_error_dump_wk(struct work_struct *work)
                         iwl_write_prph(fwrt->trans, DBGC_OUT_CTRL, out_ctrl);
                 }
         }
-
+out:
         if (fwrt->ops && fwrt->ops->dump_end)
                 fwrt->ops->dump_end(fwrt->ops_ctx);
 }
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
index 223fb77a3aa9..72259bff9922 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -8,6 +8,7 @@
  * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018        Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -33,6 +34,7 @@
  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018        Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -91,6 +93,7 @@ static inline void iwl_fw_free_dump_desc(struct iwl_fw_runtime *fwrt)
         if (fwrt->dump.desc != &iwl_dump_desc_assert)
                 kfree(fwrt->dump.desc);
         fwrt->dump.desc = NULL;
+        fwrt->dump.trig = NULL;
 }
 
 void iwl_fw_error_dump(struct iwl_fw_runtime *fwrt);
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.h b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.h
index e57ff92a68ae..3da468d2cc92 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.h
@@ -75,6 +75,20 @@ static inline void iwl_fw_cancel_timestamp(struct iwl_fw_runtime *fwrt)
         cancel_delayed_work_sync(&fwrt->timestamp.wk);
 }
 
+static inline void iwl_fw_suspend_timestamp(struct iwl_fw_runtime *fwrt)
+{
+        cancel_delayed_work_sync(&fwrt->timestamp.wk);
+}
+
+static inline void iwl_fw_resume_timestamp(struct iwl_fw_runtime *fwrt)
+{
+        if (!fwrt->timestamp.delay)
+                return;
+
+        schedule_delayed_work(&fwrt->timestamp.wk,
+                              round_jiffies_relative(fwrt->timestamp.delay));
+}
+
 #else
 static inline int iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt,
                                           struct dentry *dbgfs_dir)
@@ -84,4 +98,8 @@ static inline int iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt,
 
 static inline void iwl_fw_cancel_timestamp(struct iwl_fw_runtime *fwrt) {}
 
+static inline void iwl_fw_suspend_timestamp(struct iwl_fw_runtime *fwrt) {}
+
+static inline void iwl_fw_resume_timestamp(struct iwl_fw_runtime *fwrt) {}
+
 #endif /* CONFIG_IWLWIFI_DEBUGFS */
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/init.c b/drivers/net/wireless/intel/iwlwifi/fw/init.c
index c39fe84bb4c4..2efac307909e 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/init.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/init.c
@@ -77,8 +77,14 @@ void iwl_fw_runtime_init(struct iwl_fw_runtime *fwrt, struct iwl_trans *trans,
 }
 IWL_EXPORT_SYMBOL(iwl_fw_runtime_init);
 
-void iwl_fw_runtime_exit(struct iwl_fw_runtime *fwrt)
+void iwl_fw_runtime_suspend(struct iwl_fw_runtime *fwrt)
 {
-        iwl_fw_cancel_timestamp(fwrt);
+        iwl_fw_suspend_timestamp(fwrt);
 }
-IWL_EXPORT_SYMBOL(iwl_fw_runtime_exit);
+IWL_EXPORT_SYMBOL(iwl_fw_runtime_suspend);
+
+void iwl_fw_runtime_resume(struct iwl_fw_runtime *fwrt)
+{
+        iwl_fw_resume_timestamp(fwrt);
+}
+IWL_EXPORT_SYMBOL(iwl_fw_runtime_resume);
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
index e25c049f980f..3fb940ebd74a 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
@@ -6,6 +6,7 @@
  * GPL LICENSE SUMMARY
  *
  * Copyright(c) 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -26,6 +27,7 @@
  * BSD LICENSE
  *
  * Copyright(c) 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -68,6 +70,7 @@
 struct iwl_fw_runtime_ops {
         int (*dump_start)(void *ctx);
         void (*dump_end)(void *ctx);
+        bool (*fw_running)(void *ctx);
 };
 
 #define MAX_NUM_LMAC 2
@@ -150,6 +153,10 @@ void iwl_fw_runtime_init(struct iwl_fw_runtime *fwrt, struct iwl_trans *trans,
 
 void iwl_fw_runtime_exit(struct iwl_fw_runtime *fwrt);
 
+void iwl_fw_runtime_suspend(struct iwl_fw_runtime *fwrt);
+
+void iwl_fw_runtime_resume(struct iwl_fw_runtime *fwrt);
+
 static inline void iwl_fw_set_current_image(struct iwl_fw_runtime *fwrt,
                                             enum iwl_ucode_type cur_fw_img)
 {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 0e6cf39285f4..2efe9b099556 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -1098,6 +1098,8 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
         /* make sure the d0i3 exit work is not pending */
         flush_work(&mvm->d0i3_exit_work);
 
+        iwl_fw_runtime_suspend(&mvm->fwrt);
+
         ret = iwl_trans_suspend(trans);
         if (ret)
                 return ret;
@@ -2012,6 +2014,8 @@ int iwl_mvm_resume(struct ieee80211_hw *hw)
 
         mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
 
+        iwl_fw_runtime_resume(&mvm->fwrt);
+
         return ret;
 }
 
@@ -2038,6 +2042,8 @@ static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
 
         mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
 
+        iwl_fw_runtime_suspend(&mvm->fwrt);
+
         /* start pseudo D3 */
         rtnl_lock();
         err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
@@ -2098,6 +2104,8 @@ static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
         __iwl_mvm_resume(mvm, true);
         rtnl_unlock();
 
+        iwl_fw_runtime_resume(&mvm->fwrt);
+
         mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
 
         iwl_abort_notification_waits(&mvm->notif_wait);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index a7892c1254a2..9c436d8d001d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -8,6 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018        Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -35,6 +36,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018        Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -1281,9 +1283,6 @@ static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
 {
         int ret;
 
-        if (!iwl_mvm_firmware_running(mvm))
-                return -EIO;
-
         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
         if (ret)
                 return ret;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
index 2f22e14e00fe..8ba16fc24e3a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
@@ -438,7 +438,8 @@ int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
         }
 
         /* Allocate the CAB queue for softAP and GO interfaces */
-        if (vif->type == NL80211_IFTYPE_AP) {
+        if (vif->type == NL80211_IFTYPE_AP ||
+            vif->type == NL80211_IFTYPE_ADHOC) {
                 /*
                  * For TVQM this will be overwritten later with the FW assigned
                  * queue value (when queue is enabled).
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 8aed40a8bc38..ebf511150f4d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -8,6 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018        Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -2106,15 +2107,40 @@ static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
         if (ret)
                 goto out_remove;
 
-        ret = iwl_mvm_add_mcast_sta(mvm, vif);
-        if (ret)
-                goto out_unbind;
-
-        /* Send the bcast station. At this stage the TBTT and DTIM time events
-         * are added and applied to the scheduler */
-        ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
-        if (ret)
-                goto out_rm_mcast;
+        /*
+         * This is not very nice, but the simplest:
+         * For older FWs adding the mcast sta before the bcast station may
+         * cause assert 0x2b00.
+         * This is fixed in later FW so make the order of removal depend on
+         * the TLV
+         */
+        if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
+                ret = iwl_mvm_add_mcast_sta(mvm, vif);
+                if (ret)
+                        goto out_unbind;
+                /*
+                 * Send the bcast station. At this stage the TBTT and DTIM time
+                 * events are added and applied to the scheduler
+                 */
+                ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
+                if (ret) {
+                        iwl_mvm_rm_mcast_sta(mvm, vif);
+                        goto out_unbind;
+                }
+        } else {
+                /*
+                 * Send the bcast station. At this stage the TBTT and DTIM time
+                 * events are added and applied to the scheduler
+                 */
+                iwl_mvm_send_add_bcast_sta(mvm, vif);
+                if (ret)
+                        goto out_unbind;
+                iwl_mvm_add_mcast_sta(mvm, vif);
+                if (ret) {
+                        iwl_mvm_send_rm_bcast_sta(mvm, vif);
+                        goto out_unbind;
+                }
+        }
 
         /* must be set before quota calculations */
         mvmvif->ap_ibss_active = true;
@@ -2144,7 +2170,6 @@ out_quota_failed:
         iwl_mvm_power_update_mac(mvm);
         mvmvif->ap_ibss_active = false;
         iwl_mvm_send_rm_bcast_sta(mvm, vif);
-out_rm_mcast:
         iwl_mvm_rm_mcast_sta(mvm, vif);
 out_unbind:
         iwl_mvm_binding_remove_vif(mvm, vif);
@@ -2682,6 +2707,10 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 
                 /* enable beacon filtering */
                 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
+
+                iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
+                                     false);
+
                 ret = 0;
         } else if (old_state == IEEE80211_STA_AUTHORIZED &&
                    new_state == IEEE80211_STA_ASSOC) {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 2d28e0804218..89ff02d7c876 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -90,6 +90,7 @@
 #include "fw/runtime.h"
 #include "fw/dbg.h"
 #include "fw/acpi.h"
+#include "fw/debugfs.h"
 
 #define IWL_MVM_MAX_ADDRESSES           5
 /* RSSI offset for WkP */
@@ -1783,6 +1784,7 @@ static inline u32 iwl_mvm_flushable_queues(struct iwl_mvm *mvm)
 
 static inline void iwl_mvm_stop_device(struct iwl_mvm *mvm)
 {
+        iwl_fw_cancel_timestamp(&mvm->fwrt);
         iwl_free_fw_paging(&mvm->fwrt);
         clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
         iwl_fw_dump_conf_clear(&mvm->fwrt);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 5d525a0023dc..ab7fb5aad984 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -8,6 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018        Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -35,6 +36,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018        Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -552,9 +554,15 @@ static void iwl_mvm_fwrt_dump_end(void *ctx)
         iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
 }
 
+static bool iwl_mvm_fwrt_fw_running(void *ctx)
+{
+        return iwl_mvm_firmware_running(ctx);
+}
+
 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
         .dump_start = iwl_mvm_fwrt_dump_start,
         .dump_end = iwl_mvm_fwrt_dump_end,
+        .fw_running = iwl_mvm_fwrt_fw_running,
 };
 
 static struct iwl_op_mode *
@@ -802,7 +810,6 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
         iwl_mvm_leds_exit(mvm);
         iwl_mvm_thermal_exit(mvm);
  out_free:
-        iwl_fw_runtime_exit(&mvm->fwrt);
         iwl_fw_flush_dump(&mvm->fwrt);
 
         if (iwlmvm_mod_params.init_dbg)
@@ -843,7 +850,6 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
         kfree(mvm->d3_resume_sram);
 #endif
-        iwl_fw_runtime_exit(&mvm->fwrt);
         iwl_trans_op_mode_leave(mvm->trans);
 
         iwl_phy_db_free(mvm->phy_db);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
index 60abb0084ee5..47f4c7a1d80d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
@@ -2684,7 +2684,8 @@ static void rs_get_initial_rate(struct iwl_mvm *mvm,
                                 struct ieee80211_sta *sta,
                                 struct iwl_lq_sta *lq_sta,
                                 enum nl80211_band band,
-                                struct rs_rate *rate)
+                                struct rs_rate *rate,
+                                bool init)
 {
         int i, nentries;
         unsigned long active_rate;
@@ -2738,14 +2739,25 @@ static void rs_get_initial_rate(struct iwl_mvm *mvm,
          */
         if (sta->vht_cap.vht_supported &&
             best_rssi > IWL_RS_LOW_RSSI_THRESHOLD) {
-                switch (sta->bandwidth) {
-                case IEEE80211_STA_RX_BW_160:
-                case IEEE80211_STA_RX_BW_80:
-                case IEEE80211_STA_RX_BW_40:
+                /*
+                 * In AP mode, when a new station associates, rs is initialized
+                 * immediately upon association completion, before the phy
+                 * context is updated with the association parameters, so the
+                 * sta bandwidth might be wider than the phy context allows.
+                 * To avoid this issue, always initialize rs with 20mhz
+                 * bandwidth rate, and after authorization, when the phy context
+                 * is already up-to-date, re-init rs with the correct bw.
+                 */
+                u32 bw = init ? RATE_MCS_CHAN_WIDTH_20 : rs_bw_from_sta_bw(sta);
+
+                switch (bw) {
+                case RATE_MCS_CHAN_WIDTH_40:
+                case RATE_MCS_CHAN_WIDTH_80:
+                case RATE_MCS_CHAN_WIDTH_160:
                         initial_rates = rs_optimal_rates_vht;
                         nentries = ARRAY_SIZE(rs_optimal_rates_vht);
                         break;
-                case IEEE80211_STA_RX_BW_20:
+                case RATE_MCS_CHAN_WIDTH_20:
                         initial_rates = rs_optimal_rates_vht_20mhz;
                         nentries = ARRAY_SIZE(rs_optimal_rates_vht_20mhz);
                         break;
@@ -2756,7 +2768,7 @@ static void rs_get_initial_rate(struct iwl_mvm *mvm,
 
                 active_rate = lq_sta->active_siso_rate;
                 rate->type = LQ_VHT_SISO;
-                rate->bw = rs_bw_from_sta_bw(sta);
+                rate->bw = bw;
         } else if (sta->ht_cap.ht_supported &&
                    best_rssi > IWL_RS_LOW_RSSI_THRESHOLD) {
                 initial_rates = rs_optimal_rates_ht;
@@ -2839,7 +2851,7 @@ static void rs_initialize_lq(struct iwl_mvm *mvm,
         tbl = &(lq_sta->lq_info[active_tbl]);
         rate = &tbl->rate;
 
-        rs_get_initial_rate(mvm, sta, lq_sta, band, rate);
+        rs_get_initial_rate(mvm, sta, lq_sta, band, rate, init);
         rs_init_optimal_rate(mvm, sta, lq_sta);
 
         WARN_ONCE(rate->ant != ANT_A && rate->ant != ANT_B,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index a3f7c1bf3cc8..580de5851fc7 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -71,6 +71,7 @@ static inline int iwl_mvm_check_pn(struct iwl_mvm *mvm, struct sk_buff *skb,
         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
         struct ieee80211_rx_status *stats = IEEE80211_SKB_RXCB(skb);
         struct iwl_mvm_key_pn *ptk_pn;
+        int res;
         u8 tid, keyidx;
         u8 pn[IEEE80211_CCMP_PN_LEN];
         u8 *extiv;
@@ -127,12 +128,13 @@ static inline int iwl_mvm_check_pn(struct iwl_mvm *mvm, struct sk_buff *skb,
         pn[4] = extiv[1];
         pn[5] = extiv[0];
 
-        if (memcmp(pn, ptk_pn->q[queue].pn[tid],
-                   IEEE80211_CCMP_PN_LEN) <= 0)
+        res = memcmp(pn, ptk_pn->q[queue].pn[tid], IEEE80211_CCMP_PN_LEN);
+        if (res < 0)
+                return -1;
+        if (!res && !(stats->flag & RX_FLAG_ALLOW_SAME_PN))
                 return -1;
 
-        if (!(stats->flag & RX_FLAG_AMSDU_MORE))
-                memcpy(ptk_pn->q[queue].pn[tid], pn, IEEE80211_CCMP_PN_LEN);
+        memcpy(ptk_pn->q[queue].pn[tid], pn, IEEE80211_CCMP_PN_LEN);
         stats->flag |= RX_FLAG_PN_VALIDATED;
 
         return 0;
@@ -314,28 +316,21 @@ static void iwl_mvm_rx_csum(struct ieee80211_sta *sta,
 }
 
 /*
- * returns true if a packet outside BA session is a duplicate and
- * should be dropped
+ * returns true if a packet is a duplicate and should be dropped.
+ * Updates AMSDU PN tracking info
  */
-static bool iwl_mvm_is_nonagg_dup(struct ieee80211_sta *sta, int queue,
-                                  struct ieee80211_rx_status *rx_status,
-                                  struct ieee80211_hdr *hdr,
-                                  struct iwl_rx_mpdu_desc *desc)
+static bool iwl_mvm_is_dup(struct ieee80211_sta *sta, int queue,
+                           struct ieee80211_rx_status *rx_status,
+                           struct ieee80211_hdr *hdr,
+                           struct iwl_rx_mpdu_desc *desc)
 {
         struct iwl_mvm_sta *mvm_sta;
         struct iwl_mvm_rxq_dup_data *dup_data;
-        u8 baid, tid, sub_frame_idx;
+        u8 tid, sub_frame_idx;
 
         if (WARN_ON(IS_ERR_OR_NULL(sta)))
                 return false;
 
-        baid = (le32_to_cpu(desc->reorder_data) &
-                IWL_RX_MPDU_REORDER_BAID_MASK) >>
-                IWL_RX_MPDU_REORDER_BAID_SHIFT;
-
-        if (baid != IWL_RX_REORDER_DATA_INVALID_BAID)
-                return false;
-
         mvm_sta = iwl_mvm_sta_from_mac80211(sta);
         dup_data = &mvm_sta->dup_data[queue];
 
@@ -365,6 +360,12 @@ static bool iwl_mvm_is_nonagg_dup(struct ieee80211_sta *sta, int queue,
                      dup_data->last_sub_frame[tid] >= sub_frame_idx))
                 return true;
 
+        /* Allow same PN as the first subframe for following sub frames */
+        if (dup_data->last_seq[tid] == hdr->seq_ctrl &&
+            sub_frame_idx > dup_data->last_sub_frame[tid] &&
+            desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU)
+                rx_status->flag |= RX_FLAG_ALLOW_SAME_PN;
+
         dup_data->last_seq[tid] = hdr->seq_ctrl;
         dup_data->last_sub_frame[tid] = sub_frame_idx;
 
@@ -971,7 +972,7 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
                 if (ieee80211_is_data(hdr->frame_control))
                         iwl_mvm_rx_csum(sta, skb, desc);
 
-                if (iwl_mvm_is_nonagg_dup(sta, queue, rx_status, hdr, desc)) {
+                if (iwl_mvm_is_dup(sta, queue, rx_status, hdr, desc)) {
                         kfree_skb(skb);
                         goto out;
                 }
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 6b2674e02606..630e23cb0ffb 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -2039,7 +2039,7 @@ int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
         struct iwl_trans_txq_scd_cfg cfg = {
                 .fifo = IWL_MVM_TX_FIFO_MCAST,
                 .sta_id = msta->sta_id,
-                .tid = IWL_MAX_TID_COUNT,
+                .tid = 0,
                 .aggregate = false,
                 .frame_limit = IWL_FRAME_LIMIT,
         };
@@ -2053,6 +2053,17 @@ int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
                 return -ENOTSUPP;
 
         /*
+         * In IBSS, ieee80211_check_queues() sets the cab_queue to be
+         * invalid, so make sure we use the queue we want.
+         * Note that this is done here as we want to avoid making DQA
+         * changes in mac80211 layer.
+         */
+        if (vif->type == NL80211_IFTYPE_ADHOC) {
+                vif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE;
+                mvmvif->cab_queue = vif->cab_queue;
+        }
+
+        /*
          * While in previous FWs we had to exclude cab queue from TFD queue
          * mask, now it is needed as any other queue.
          */
@@ -2079,24 +2090,13 @@ int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
         if (iwl_mvm_has_new_tx_api(mvm)) {
                 int queue = iwl_mvm_tvqm_enable_txq(mvm, vif->cab_queue,
                                                     msta->sta_id,
-                                                    IWL_MAX_TID_COUNT,
+                                                    0,
                                                     timeout);
                 mvmvif->cab_queue = queue;
         } else if (!fw_has_api(&mvm->fw->ucode_capa,
-                               IWL_UCODE_TLV_API_STA_TYPE)) {
-                /*
-                 * In IBSS, ieee80211_check_queues() sets the cab_queue to be
-                 * invalid, so make sure we use the queue we want.
-                 * Note that this is done here as we want to avoid making DQA
-                 * changes in mac80211 layer.
-                 */
-                if (vif->type == NL80211_IFTYPE_ADHOC) {
-                        vif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE;
-                        mvmvif->cab_queue = vif->cab_queue;
-                }
+                               IWL_UCODE_TLV_API_STA_TYPE))
                 iwl_mvm_enable_txq(mvm, vif->cab_queue, vif->cab_queue, 0,
                                    &cfg, timeout);
-        }
 
         return 0;
 }
@@ -2115,7 +2115,7 @@ int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
         iwl_mvm_flush_sta(mvm, &mvmvif->mcast_sta, true, 0);
 
         iwl_mvm_disable_txq(mvm, mvmvif->cab_queue, vif->cab_queue,
-                            IWL_MAX_TID_COUNT, 0);
+                            0, 0);
 
         ret = iwl_mvm_rm_sta_common(mvm, mvmvif->mcast_sta.sta_id);
         if (ret)
@@ -3170,8 +3170,9 @@ static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id,
         int ret, size;
         u32 status;
 
+        /* This is a valid situation for GTK removal */
         if (sta_id == IWL_MVM_INVALID_STA)
-                return -EINVAL;
+                return 0;
 
         key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) &
                                  STA_KEY_FLG_KEYID_MSK);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
index 200ab50ec86b..acb217e666db 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
@@ -616,7 +616,7 @@ void iwl_mvm_protect_session(struct iwl_mvm *mvm,
         time_cmd.repeat = 1;
         time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START |
                                       TE_V2_NOTIF_HOST_EVENT_END |
-                                      T2_V2_START_IMMEDIATELY);
+                                      TE_V2_START_IMMEDIATELY);
 
         if (!wait_for_notif) {
                 iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd);
@@ -803,7 +803,7 @@ int iwl_mvm_start_p2p_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
         time_cmd.repeat = 1;
         time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START |
                                       TE_V2_NOTIF_HOST_EVENT_END |
-                                      T2_V2_START_IMMEDIATELY);
+                                      TE_V2_START_IMMEDIATELY);
 
         return iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd);
 }
@@ -913,6 +913,8 @@ int iwl_mvm_schedule_csa_period(struct iwl_mvm *mvm,
         time_cmd.interval = cpu_to_le32(1);
         time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START |
                                       TE_V2_ABSENCE);
+        if (!apply_time)
+                time_cmd.policy |= cpu_to_le16(TE_V2_START_IMMEDIATELY);
 
         return iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd);
 }
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index dda77b327c98..af6dfceab6b8 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -419,11 +419,11 @@ static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm,
 {
         struct ieee80211_key_conf *keyconf = info->control.hw_key;
         u8 *crypto_hdr = skb_frag->data + hdrlen;
+        enum iwl_tx_cmd_sec_ctrl type = TX_CMD_SEC_CCM;
         u64 pn;
 
         switch (keyconf->cipher) {
         case WLAN_CIPHER_SUITE_CCMP:
-        case WLAN_CIPHER_SUITE_CCMP_256:
                 iwl_mvm_set_tx_cmd_ccmp(info, tx_cmd);
                 iwl_mvm_set_tx_cmd_pn(info, crypto_hdr);
                 break;
@@ -447,13 +447,16 @@ static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm,
                 break;
         case WLAN_CIPHER_SUITE_GCMP:
         case WLAN_CIPHER_SUITE_GCMP_256:
+                type = TX_CMD_SEC_GCMP;
+                /* Fall through */
+        case WLAN_CIPHER_SUITE_CCMP_256:
                 /* TODO: Taking the key from the table might introduce a race
                  * when PTK rekeying is done, having an old packets with a PN
                  * based on the old key but the message encrypted with a new
                  * one.
                  * Need to handle this.
                  */
-                tx_cmd->sec_ctl |= TX_CMD_SEC_GCMP | TX_CMD_SEC_KEY_FROM_TABLE;
+                tx_cmd->sec_ctl |= type | TX_CMD_SEC_KEY_FROM_TABLE;
                 tx_cmd->key[0] = keyconf->hw_key_idx;
                 iwl_mvm_set_tx_cmd_pn(info, crypto_hdr);
                 break;
@@ -645,7 +648,11 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
                 if (info.control.vif->type == NL80211_IFTYPE_P2P_DEVICE ||
                     info.control.vif->type == NL80211_IFTYPE_AP ||
                     info.control.vif->type == NL80211_IFTYPE_ADHOC) {
-                        sta_id = mvmvif->bcast_sta.sta_id;
+                        if (info.control.vif->type == NL80211_IFTYPE_P2P_DEVICE)
+                                sta_id = mvmvif->bcast_sta.sta_id;
+                        else
+                                sta_id = mvmvif->mcast_sta.sta_id;
+
                         queue = iwl_mvm_get_ctrl_vif_queue(mvm, &info,
                                                            hdr->frame_control);
                         if (queue < 0)
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
index 6d0a907d5ba5..fabae0f60683 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
@@ -147,7 +147,7 @@ static void iwl_pcie_gen2_tfd_unmap(struct iwl_trans *trans,
         /* Sanity check on number of chunks */
         num_tbs = iwl_pcie_gen2_get_num_tbs(trans, tfd);
 
-        if (num_tbs >= trans_pcie->max_tbs) {
+        if (num_tbs > trans_pcie->max_tbs) {
                 IWL_ERR(trans, "Too many chunks: %i\n", num_tbs);
                 return;
         }
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index 3f85713c41dc..1a566287993d 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -378,7 +378,7 @@ static void iwl_pcie_tfd_unmap(struct iwl_trans *trans,
         /* Sanity check on number of chunks */
         num_tbs = iwl_pcie_tfd_get_num_tbs(trans, tfd);
 
-        if (num_tbs >= trans_pcie->max_tbs) {
+        if (num_tbs > trans_pcie->max_tbs) {
                 IWL_ERR(trans, "Too many chunks: %i\n", num_tbs);
                 /* @todo issue fatal error, it is quite serious situation */
                 return;
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 1cf22e62e3dd..35b21f8152bb 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2727,6 +2727,7 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
         mutex_init(&data->mutex);
 
         data->netgroup = hwsim_net_get_netgroup(net);
+        data->wmediumd = hwsim_net_get_wmediumd(net);
 
         /* Enable frame retransmissions for lossy channels */
         hw->max_rates = 4;
@@ -3516,7 +3517,7 @@ static int __init init_mac80211_hwsim(void)
 
         spin_lock_init(&hwsim_radio_lock);
 
-        hwsim_wq = alloc_workqueue("hwsim_wq",WQ_MEM_RECLAIM,0);
+        hwsim_wq = alloc_workqueue("hwsim_wq", 0, 0);
         if (!hwsim_wq)
                 return -ENOMEM;
         rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
index f9ccd13c79f9..e7bbbc95cdb1 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
@@ -1125,7 +1125,8 @@ static void _rtl8723be_enable_aspm_back_door(struct ieee80211_hw *hw)
 
         /* Configuration Space offset 0x70f BIT7 is used to control L0S */
         tmp8 = _rtl8723be_dbi_read(rtlpriv, 0x70f);
-        _rtl8723be_dbi_write(rtlpriv, 0x70f, tmp8 | BIT(7));
+        _rtl8723be_dbi_write(rtlpriv, 0x70f, tmp8 | BIT(7) |
+                             ASPM_L1_LATENCY << 3);
 
         /* Configuration Space offset 0x719 Bit3 is for L1
          * BIT4 is for clock request
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 8328d395e332..3127bc8633ca 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -2005,7 +2005,10 @@ static void netback_changed(struct xenbus_device *dev,
         case XenbusStateInitialised:
         case XenbusStateReconfiguring:
         case XenbusStateReconfigured:
+                break;
+
         case XenbusStateUnknown:
+                wake_up_all(&module_unload_q);
                 break;
 
         case XenbusStateInitWait:
@@ -2136,7 +2139,9 @@ static int xennet_remove(struct xenbus_device *dev)
                 xenbus_switch_state(dev, XenbusStateClosing);
                 wait_event(module_unload_q,
                            xenbus_read_driver_state(dev->otherend) ==
-                           XenbusStateClosing);
+                           XenbusStateClosing ||
+                           xenbus_read_driver_state(dev->otherend) ==
+                           XenbusStateUnknown);
 
                 xenbus_switch_state(dev, XenbusStateClosed);
                 wait_event(module_unload_q,
diff --git a/drivers/nvdimm/blk.c b/drivers/nvdimm/blk.c
index 345acca576b3..1bd7b3734751 100644
--- a/drivers/nvdimm/blk.c
+++ b/drivers/nvdimm/blk.c
@@ -278,8 +278,6 @@ static int nsblk_attach_disk(struct nd_namespace_blk *nsblk)
         disk->queue             = q;
         disk->flags             = GENHD_FL_EXT_DEVT;
         nvdimm_namespace_disk_name(&nsblk->common, disk->disk_name);
-        set_capacity(disk, 0);
-        device_add_disk(dev, disk);
 
         if (devm_add_action_or_reset(dev, nd_blk_release_disk, disk))
                 return -ENOMEM;
@@ -292,6 +290,7 @@ static int nsblk_attach_disk(struct nd_namespace_blk *nsblk)
         }
 
         set_capacity(disk, available_disk_size >> SECTOR_SHIFT);
+        device_add_disk(dev, disk);
         revalidate_disk(disk);
         return 0;
 }
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 2ef544f10ec8..4b95ac513de2 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1545,8 +1545,6 @@ static int btt_blk_init(struct btt *btt)
         queue_flag_set_unlocked(QUEUE_FLAG_NONROT, btt->btt_queue);
         btt->btt_queue->queuedata = btt;
 
-        set_capacity(btt->btt_disk, 0);
-        device_add_disk(&btt->nd_btt->dev, btt->btt_disk);
         if (btt_meta_size(btt)) {
                 int rc = nd_integrity_init(btt->btt_disk, btt_meta_size(btt));
 
@@ -1558,6 +1556,7 @@ static int btt_blk_init(struct btt *btt)
                 }
         }
         set_capacity(btt->btt_disk, btt->nlba * btt->sector_size >> 9);
+        device_add_disk(&btt->nd_btt->dev, btt->btt_disk);
         btt->nd_btt->size = btt->nlba * (u64)btt->sector_size;
         revalidate_disk(btt->btt_disk);
 
diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
index f5c4e8c6e29d..2f4d18752c97 100644
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -304,7 +304,7 @@ static const struct attribute_group *nd_pfn_attribute_groups[] = {
 struct device *nd_pfn_devinit(struct nd_pfn *nd_pfn,
                 struct nd_namespace_common *ndns)
 {
-        struct device *dev = &nd_pfn->dev;
+        struct device *dev;
 
         if (!nd_pfn)
                 return NULL;
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 10041ac4032c..06f8dcc52ca6 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -335,8 +335,7 @@ static int pmem_attach_disk(struct device *dev,
                 dev_warn(dev, "unable to guarantee persistence of writes\n");
                 fua = 0;
         }
-        wbc = nvdimm_has_cache(nd_region) &&
-                !test_bit(ND_REGION_PERSIST_CACHE, &nd_region->flags);
+        wbc = nvdimm_has_cache(nd_region);
 
         if (!devm_request_mem_region(dev, res->start, resource_size(res),
                                 dev_name(&ndns->dev))) {
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index e6d01911e092..1593e1806b16 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -532,11 +532,13 @@ static ssize_t persistence_domain_show(struct device *dev,
                 struct device_attribute *attr, char *buf)
 {
         struct nd_region *nd_region = to_nd_region(dev);
-        unsigned long flags = nd_region->flags;
 
-        return sprintf(buf, "%s%s\n",
-                        flags & BIT(ND_REGION_PERSIST_CACHE) ? "cpu_cache " : "",
-                        flags & BIT(ND_REGION_PERSIST_MEMCTRL) ? "memory_controller " : "");
+        if (test_bit(ND_REGION_PERSIST_CACHE, &nd_region->flags))
+                return sprintf(buf, "cpu_cache\n");
+        else if (test_bit(ND_REGION_PERSIST_MEMCTRL, &nd_region->flags))
+                return sprintf(buf, "memory_controller\n");
+        else
+                return sprintf(buf, "\n");
 }
 static DEVICE_ATTR_RO(persistence_domain);
 
@@ -593,6 +595,13 @@ static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n)
                         return 0;
         }
 
+        if (a == &dev_attr_persistence_domain.attr) {
+                if ((nd_region->flags & (BIT(ND_REGION_PERSIST_CACHE)
+                                        | BIT(ND_REGION_PERSIST_MEMCTRL))) == 0)
+                        return 0;
+                return a->mode;
+        }
+
         if (a != &dev_attr_set_cookie.attr
                         && a != &dev_attr_available_size.attr)
                 return a->mode;
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index f431c32774f3..7aeca5db7916 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -120,8 +120,12 @@ int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl)
         int ret;
 
         ret = nvme_reset_ctrl(ctrl);
-        if (!ret)
+        if (!ret) {
                 flush_work(&ctrl->reset_work);
+                if (ctrl->state != NVME_CTRL_LIVE)
+                        ret = -ENETRESET;
+        }
+
         return ret;
 }
 EXPORT_SYMBOL_GPL(nvme_reset_ctrl_sync);
@@ -265,7 +269,7 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
         switch (new_state) {
         case NVME_CTRL_ADMIN_ONLY:
                 switch (old_state) {
-                case NVME_CTRL_RECONNECTING:
+                case NVME_CTRL_CONNECTING:
                         changed = true;
                         /* FALLTHRU */
                 default:
@@ -276,7 +280,7 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
                 switch (old_state) {
                 case NVME_CTRL_NEW:
                 case NVME_CTRL_RESETTING:
-                case NVME_CTRL_RECONNECTING:
+                case NVME_CTRL_CONNECTING:
                         changed = true;
                         /* FALLTHRU */
                 default:
@@ -294,9 +298,9 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
                         break;
                 }
                 break;
-        case NVME_CTRL_RECONNECTING:
+        case NVME_CTRL_CONNECTING:
                 switch (old_state) {
-                case NVME_CTRL_LIVE:
+                case NVME_CTRL_NEW:
                 case NVME_CTRL_RESETTING:
                         changed = true;
                         /* FALLTHRU */
@@ -309,7 +313,7 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
                 case NVME_CTRL_LIVE:
                 case NVME_CTRL_ADMIN_ONLY:
                 case NVME_CTRL_RESETTING:
-                case NVME_CTRL_RECONNECTING:
+                case NVME_CTRL_CONNECTING:
                         changed = true;
                         /* FALLTHRU */
                 default:
@@ -518,9 +522,11 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
                 u64 slba = nvme_block_nr(ns, bio->bi_iter.bi_sector);
                 u32 nlb = bio->bi_iter.bi_size >> ns->lba_shift;
 
-                range[n].cattr = cpu_to_le32(0);
-                range[n].nlb = cpu_to_le32(nlb);
-                range[n].slba = cpu_to_le64(slba);
+                if (n < segments) {
+                        range[n].cattr = cpu_to_le32(0);
+                        range[n].nlb = cpu_to_le32(nlb);
+                        range[n].slba = cpu_to_le64(slba);
+                }
                 n++;
         }
 
@@ -794,13 +800,9 @@ static void nvme_keep_alive_end_io(struct request *rq, blk_status_t status)
 
 static int nvme_keep_alive(struct nvme_ctrl *ctrl)
 {
-        struct nvme_command c;
         struct request *rq;
 
-        memset(&c, 0, sizeof(c));
-        c.common.opcode = nvme_admin_keep_alive;
-
-        rq = nvme_alloc_request(ctrl->admin_q, &c, BLK_MQ_REQ_RESERVED,
+        rq = nvme_alloc_request(ctrl->admin_q, &ctrl->ka_cmd, BLK_MQ_REQ_RESERVED,
                         NVME_QID_ANY);
         if (IS_ERR(rq))
                 return PTR_ERR(rq);
@@ -832,6 +834,8 @@ void nvme_start_keep_alive(struct nvme_ctrl *ctrl)
                 return;
 
         INIT_DELAYED_WORK(&ctrl->ka_work, nvme_keep_alive_work);
+        memset(&ctrl->ka_cmd, 0, sizeof(ctrl->ka_cmd));
+        ctrl->ka_cmd.common.opcode = nvme_admin_keep_alive;
         schedule_delayed_work(&ctrl->ka_work, ctrl->kato * HZ);
 }
 EXPORT_SYMBOL_GPL(nvme_start_keep_alive);
@@ -1117,14 +1121,19 @@ static u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
 
 static void nvme_update_formats(struct nvme_ctrl *ctrl)
 {
-        struct nvme_ns *ns;
+        struct nvme_ns *ns, *next;
+        LIST_HEAD(rm_list);
 
         mutex_lock(&ctrl->namespaces_mutex);
         list_for_each_entry(ns, &ctrl->namespaces, list) {
-                if (ns->disk && nvme_revalidate_disk(ns->disk))
-                        nvme_ns_remove(ns);
+                if (ns->disk && nvme_revalidate_disk(ns->disk)) {
+                        list_move_tail(&ns->list, &rm_list);
+                }
         }
         mutex_unlock(&ctrl->namespaces_mutex);
+
+        list_for_each_entry_safe(ns, next, &rm_list, list)
+                nvme_ns_remove(ns);
 }
 
 static void nvme_passthru_end(struct nvme_ctrl *ctrl, u32 effects)
@@ -2687,7 +2696,7 @@ static ssize_t nvme_sysfs_show_state(struct device *dev,
                 [NVME_CTRL_LIVE]        = "live",
                 [NVME_CTRL_ADMIN_ONLY]  = "only-admin",
                 [NVME_CTRL_RESETTING]   = "resetting",
-                [NVME_CTRL_RECONNECTING]= "reconnecting",
+                [NVME_CTRL_CONNECTING]  = "connecting",
                 [NVME_CTRL_DELETING]    = "deleting",
                 [NVME_CTRL_DEAD]        = "dead",
         };
@@ -2835,7 +2844,7 @@ out:
 }
 
 static int nvme_init_ns_head(struct nvme_ns *ns, unsigned nsid,
-                struct nvme_id_ns *id, bool *new)
+                struct nvme_id_ns *id)
 {
         struct nvme_ctrl *ctrl = ns->ctrl;
         bool is_shared = id->nmic & (1 << 0);
@@ -2851,8 +2860,6 @@ static int nvme_init_ns_head(struct nvme_ns *ns, unsigned nsid,
                         ret = PTR_ERR(head);
                         goto out_unlock;
                 }
-
-                *new = true;
         } else {
                 struct nvme_ns_ids ids;
 
@@ -2864,8 +2871,6 @@ static int nvme_init_ns_head(struct nvme_ns *ns, unsigned nsid,
                         ret = -EINVAL;
                         goto out_unlock;
                 }
-
-                *new = false;
         }
 
         list_add_tail(&ns->siblings, &head->list);
@@ -2936,7 +2941,6 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
         struct nvme_id_ns *id;
         char disk_name[DISK_NAME_LEN];
         int node = dev_to_node(ctrl->dev), flags = GENHD_FL_EXT_DEVT;
-        bool new = true;
 
         ns = kzalloc_node(sizeof(*ns), GFP_KERNEL, node);
         if (!ns)
@@ -2962,7 +2966,7 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
         if (id->ncap == 0)
                 goto out_free_id;
 
-        if (nvme_init_ns_head(ns, nsid, id, &new))
+        if (nvme_init_ns_head(ns, nsid, id))
                 goto out_free_id;
         nvme_setup_streams_ns(ctrl, ns);
         
@@ -3028,9 +3032,7 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
                 pr_warn("%s: failed to register lightnvm sysfs group for identification\n",
                         ns->disk->disk_name);
 
-        if (new)
-                nvme_mpath_add_disk(ns->head);
-        nvme_mpath_add_disk_links(ns);
+        nvme_mpath_add_disk(ns->head);
         return;
  out_unlink_ns:
         mutex_lock(&ctrl->subsys->lock);
@@ -3050,7 +3052,6 @@ static void nvme_ns_remove(struct nvme_ns *ns)
                 return;
 
         if (ns->disk && ns->disk->flags & GENHD_FL_UP) {
-                nvme_mpath_remove_disk_links(ns);
                 sysfs_remove_group(&disk_to_dev(ns->disk)->kobj,
                                         &nvme_ns_id_attr_group);
                 if (ns->ndev)
diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c
index 5dd4ceefed8f..8f0f34d06d46 100644
--- a/drivers/nvme/host/fabrics.c
+++ b/drivers/nvme/host/fabrics.c
@@ -493,7 +493,7 @@ EXPORT_SYMBOL_GPL(nvmf_should_reconnect);
  */
 int nvmf_register_transport(struct nvmf_transport_ops *ops)
 {
-        if (!ops->create_ctrl || !ops->module)
+        if (!ops->create_ctrl)
                 return -EINVAL;
 
         down_write(&nvmf_transports_rwsem);
@@ -650,6 +650,11 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts,
                                 ret = -EINVAL;
                                 goto out;
                         }
+                        if (opts->discovery_nqn) {
+                                pr_debug("Ignoring nr_io_queues value for discovery controller\n");
+                                break;
+                        }
+
                         opts->nr_io_queues = min_t(unsigned int,
                                         num_online_cpus(), token);
                         break;
diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h
index 25b19f722f5b..a3145d90c1d2 100644
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -171,13 +171,14 @@ static inline blk_status_t nvmf_check_init_req(struct nvme_ctrl *ctrl,
             cmd->common.opcode != nvme_fabrics_command ||
             cmd->fabrics.fctype != nvme_fabrics_type_connect) {
                 /*
-                 * Reconnecting state means transport disruption, which can take
-                 * a long time and even might fail permanently, fail fast to
-                 * give upper layers a chance to failover.
+                 * Connecting state means transport disruption or initial
+                 * establishment, which can take a long time and even might
+                 * fail permanently, fail fast to give upper layers a chance
+                 * to failover.
                  * Deleting state means that the ctrl will never accept commands
                  * again, fail it permanently.
                  */
-                if (ctrl->state == NVME_CTRL_RECONNECTING ||
+                if (ctrl->state == NVME_CTRL_CONNECTING ||
                     ctrl->state == NVME_CTRL_DELETING) {
                         nvme_req(rq)->status = NVME_SC_ABORT_REQ;
                         return BLK_STS_IOERR;
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index b856d7c919d2..1dc1387b7134 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -55,9 +55,7 @@ struct nvme_fc_queue {
 
 enum nvme_fcop_flags {
         FCOP_FLAGS_TERMIO       = (1 << 0),
-        FCOP_FLAGS_RELEASED     = (1 << 1),
-        FCOP_FLAGS_COMPLETE     = (1 << 2),
-        FCOP_FLAGS_AEN          = (1 << 3),
+        FCOP_FLAGS_AEN          = (1 << 1),
 };
 
 struct nvmefc_ls_req_op {
@@ -532,7 +530,7 @@ nvme_fc_resume_controller(struct nvme_fc_ctrl *ctrl)
 {
         switch (ctrl->ctrl.state) {
         case NVME_CTRL_NEW:
-        case NVME_CTRL_RECONNECTING:
+        case NVME_CTRL_CONNECTING:
                 /*
                  * As all reconnects were suppressed, schedule a
                  * connect.
@@ -777,7 +775,7 @@ nvme_fc_ctrl_connectivity_loss(struct nvme_fc_ctrl *ctrl)
                 }
                 break;
 
-        case NVME_CTRL_RECONNECTING:
+        case NVME_CTRL_CONNECTING:
                 /*
                  * The association has already been terminated and the
                  * controller is attempting reconnects.  No need to do anything
@@ -1208,7 +1206,7 @@ nvme_fc_connect_admin_queue(struct nvme_fc_ctrl *ctrl,
                                 sizeof(struct fcnvme_lsdesc_cr_assoc_cmd));
 
         assoc_rqst->assoc_cmd.ersp_ratio = cpu_to_be16(ersp_ratio);
-        assoc_rqst->assoc_cmd.sqsize = cpu_to_be16(qsize);
+        assoc_rqst->assoc_cmd.sqsize = cpu_to_be16(qsize - 1);
         /* Linux supports only Dynamic controllers */
         assoc_rqst->assoc_cmd.cntlid = cpu_to_be16(0xffff);
         uuid_copy(&assoc_rqst->assoc_cmd.hostid, &ctrl->ctrl.opts->host->id);
@@ -1323,7 +1321,7 @@ nvme_fc_connect_queue(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
                                 sizeof(struct fcnvme_lsdesc_cr_conn_cmd));
         conn_rqst->connect_cmd.ersp_ratio = cpu_to_be16(ersp_ratio);
         conn_rqst->connect_cmd.qid  = cpu_to_be16(queue->qnum);
-        conn_rqst->connect_cmd.sqsize = cpu_to_be16(qsize);
+        conn_rqst->connect_cmd.sqsize = cpu_to_be16(qsize - 1);
 
         lsop->queue = queue;
         lsreq->rqstaddr = conn_rqst;
@@ -1470,7 +1468,6 @@ nvme_fc_xmt_disconnect_assoc(struct nvme_fc_ctrl *ctrl)
 
 /* *********************** NVME Ctrl Routines **************************** */
 
-static void __nvme_fc_final_op_cleanup(struct request *rq);
 static void nvme_fc_error_recovery(struct nvme_fc_ctrl *ctrl, char *errmsg);
 
 static int
@@ -1512,13 +1509,19 @@ nvme_fc_exit_request(struct blk_mq_tag_set *set, struct request *rq,
 static int
 __nvme_fc_abort_op(struct nvme_fc_ctrl *ctrl, struct nvme_fc_fcp_op *op)
 {
-        int state;
+        unsigned long flags;
+        int opstate;
+
+        spin_lock_irqsave(&ctrl->lock, flags);
+        opstate = atomic_xchg(&op->state, FCPOP_STATE_ABORTED);
+        if (opstate != FCPOP_STATE_ACTIVE)
+                atomic_set(&op->state, opstate);
+        else if (ctrl->flags & FCCTRL_TERMIO)
+                ctrl->iocnt++;
+        spin_unlock_irqrestore(&ctrl->lock, flags);
 
-        state = atomic_xchg(&op->state, FCPOP_STATE_ABORTED);
-        if (state != FCPOP_STATE_ACTIVE) {
-                atomic_set(&op->state, state);
+        if (opstate != FCPOP_STATE_ACTIVE)
                 return -ECANCELED;
-        }
 
         ctrl->lport->ops->fcp_abort(&ctrl->lport->localport,
                                         &ctrl->rport->remoteport,
@@ -1532,60 +1535,26 @@ static void
 nvme_fc_abort_aen_ops(struct nvme_fc_ctrl *ctrl)
 {
         struct nvme_fc_fcp_op *aen_op = ctrl->aen_ops;
-        unsigned long flags;
-        int i, ret;
-
-        for (i = 0; i < NVME_NR_AEN_COMMANDS; i++, aen_op++) {
-                if (atomic_read(&aen_op->state) != FCPOP_STATE_ACTIVE)
-                        continue;
-
-                spin_lock_irqsave(&ctrl->lock, flags);
-                if (ctrl->flags & FCCTRL_TERMIO) {
-                        ctrl->iocnt++;
-                        aen_op->flags |= FCOP_FLAGS_TERMIO;
-                }
-                spin_unlock_irqrestore(&ctrl->lock, flags);
-
-                ret = __nvme_fc_abort_op(ctrl, aen_op);
-                if (ret) {
-                        /*
-                         * if __nvme_fc_abort_op failed the io wasn't
-                         * active. Thus this call path is running in
-                         * parallel to the io complete. Treat as non-error.
-                         */
+        int i;
 
-                        /* back out the flags/counters */
-                        spin_lock_irqsave(&ctrl->lock, flags);
-                        if (ctrl->flags & FCCTRL_TERMIO)
-                                ctrl->iocnt--;
-                        aen_op->flags &= ~FCOP_FLAGS_TERMIO;
-                        spin_unlock_irqrestore(&ctrl->lock, flags);
-                        return;
-                }
-        }
+        for (i = 0; i < NVME_NR_AEN_COMMANDS; i++, aen_op++)
+                __nvme_fc_abort_op(ctrl, aen_op);
 }
 
-static inline int
+static inline void
 __nvme_fc_fcpop_chk_teardowns(struct nvme_fc_ctrl *ctrl,
-                struct nvme_fc_fcp_op *op)
+                struct nvme_fc_fcp_op *op, int opstate)
 {
         unsigned long flags;
-        bool complete_rq = false;
 
-        spin_lock_irqsave(&ctrl->lock, flags);
-        if (unlikely(op->flags & FCOP_FLAGS_TERMIO)) {
+        if (opstate == FCPOP_STATE_ABORTED) {
+                spin_lock_irqsave(&ctrl->lock, flags);
                 if (ctrl->flags & FCCTRL_TERMIO) {
                         if (!--ctrl->iocnt)
                                 wake_up(&ctrl->ioabort_wait);
                 }
+                spin_unlock_irqrestore(&ctrl->lock, flags);
         }
-        if (op->flags & FCOP_FLAGS_RELEASED)
-                complete_rq = true;
-        else
-                op->flags |= FCOP_FLAGS_COMPLETE;
-        spin_unlock_irqrestore(&ctrl->lock, flags);
-
-        return complete_rq;
 }
 
 static void
@@ -1601,6 +1570,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
         __le16 status = cpu_to_le16(NVME_SC_SUCCESS << 1);
         union nvme_result result;
         bool terminate_assoc = true;
+        int opstate;
 
         /*
          * WARNING:
@@ -1639,11 +1609,12 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
          * association to be terminated.
          */
 
+        opstate = atomic_xchg(&op->state, FCPOP_STATE_COMPLETE);
+
         fc_dma_sync_single_for_cpu(ctrl->lport->dev, op->fcp_req.rspdma,
                                 sizeof(op->rsp_iu), DMA_FROM_DEVICE);
 
-        if (atomic_read(&op->state) == FCPOP_STATE_ABORTED ||
-                        op->flags & FCOP_FLAGS_TERMIO)
+        if (opstate == FCPOP_STATE_ABORTED)
                 status = cpu_to_le16(NVME_SC_ABORT_REQ << 1);
         else if (freq->status)
                 status = cpu_to_le16(NVME_SC_INTERNAL << 1);
@@ -1708,7 +1679,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
 done:
         if (op->flags & FCOP_FLAGS_AEN) {
                 nvme_complete_async_event(&queue->ctrl->ctrl, status, &result);
-                __nvme_fc_fcpop_chk_teardowns(ctrl, op);
+                __nvme_fc_fcpop_chk_teardowns(ctrl, op, opstate);
                 atomic_set(&op->state, FCPOP_STATE_IDLE);
                 op->flags = FCOP_FLAGS_AEN;     /* clear other flags */
                 nvme_fc_ctrl_put(ctrl);
@@ -1722,13 +1693,11 @@ done:
         if (status &&
             (blk_queue_dying(rq->q) ||
              ctrl->ctrl.state == NVME_CTRL_NEW ||
-             ctrl->ctrl.state == NVME_CTRL_RECONNECTING))
+             ctrl->ctrl.state == NVME_CTRL_CONNECTING))
                 status |= cpu_to_le16(NVME_SC_DNR << 1);
 
-        if (__nvme_fc_fcpop_chk_teardowns(ctrl, op))
-                __nvme_fc_final_op_cleanup(rq);
-        else
-                nvme_end_request(rq, status, result);
+        __nvme_fc_fcpop_chk_teardowns(ctrl, op, opstate);
+        nvme_end_request(rq, status, result);
 
 check_error:
         if (terminate_assoc)
@@ -2415,46 +2384,16 @@ nvme_fc_submit_async_event(struct nvme_ctrl *arg)
 }
 
 static void
-__nvme_fc_final_op_cleanup(struct request *rq)
+nvme_fc_complete_rq(struct request *rq)
 {
         struct nvme_fc_fcp_op *op = blk_mq_rq_to_pdu(rq);
         struct nvme_fc_ctrl *ctrl = op->ctrl;
 
         atomic_set(&op->state, FCPOP_STATE_IDLE);
-        op->flags &= ~(FCOP_FLAGS_TERMIO | FCOP_FLAGS_RELEASED |
-                        FCOP_FLAGS_COMPLETE);
 
         nvme_fc_unmap_data(ctrl, rq, op);
         nvme_complete_rq(rq);
         nvme_fc_ctrl_put(ctrl);
-
-}
-
-static void
-nvme_fc_complete_rq(struct request *rq)
-{
-        struct nvme_fc_fcp_op *op = blk_mq_rq_to_pdu(rq);
-        struct nvme_fc_ctrl *ctrl = op->ctrl;
-        unsigned long flags;
-        bool completed = false;
-
-        /*
-         * the core layer, on controller resets after calling
-         * nvme_shutdown_ctrl(), calls complete_rq without our
-         * calling blk_mq_complete_request(), thus there may still
-         * be live i/o outstanding with the LLDD. Means transport has
-         * to track complete calls vs fcpio_done calls to know what
-         * path to take on completes and dones.
-         */
-        spin_lock_irqsave(&ctrl->lock, flags);
-        if (op->flags & FCOP_FLAGS_COMPLETE)
-                completed = true;
-        else
-                op->flags |= FCOP_FLAGS_RELEASED;
-        spin_unlock_irqrestore(&ctrl->lock, flags);
-
-        if (completed)
-                __nvme_fc_final_op_cleanup(rq);
 }
 
 /*
@@ -2476,35 +2415,11 @@ nvme_fc_terminate_exchange(struct request *req, void *data, bool reserved)
         struct nvme_ctrl *nctrl = data;
         struct nvme_fc_ctrl *ctrl = to_fc_ctrl(nctrl);
         struct nvme_fc_fcp_op *op = blk_mq_rq_to_pdu(req);
-        unsigned long flags;
-        int status;
 
         if (!blk_mq_request_started(req))
                 return;
 
-        spin_lock_irqsave(&ctrl->lock, flags);
-        if (ctrl->flags & FCCTRL_TERMIO) {
-                ctrl->iocnt++;
-                op->flags |= FCOP_FLAGS_TERMIO;
-        }
-        spin_unlock_irqrestore(&ctrl->lock, flags);
-
-        status = __nvme_fc_abort_op(ctrl, op);
-        if (status) {
-                /*
-                 * if __nvme_fc_abort_op failed the io wasn't
-                 * active. Thus this call path is running in
-                 * parallel to the io complete. Treat as non-error.
-                 */
-
-                /* back out the flags/counters */
-                spin_lock_irqsave(&ctrl->lock, flags);
-                if (ctrl->flags & FCCTRL_TERMIO)
-                        ctrl->iocnt--;
-                op->flags &= ~FCOP_FLAGS_TERMIO;
-                spin_unlock_irqrestore(&ctrl->lock, flags);
-                return;
-        }
+        __nvme_fc_abort_op(ctrl, op);
 }
 
 
@@ -2566,11 +2481,11 @@ nvme_fc_create_io_queues(struct nvme_fc_ctrl *ctrl)
                 goto out_free_tag_set;
         }
 
-        ret = nvme_fc_create_hw_io_queues(ctrl, ctrl->ctrl.opts->queue_size);
+        ret = nvme_fc_create_hw_io_queues(ctrl, ctrl->ctrl.sqsize + 1);
         if (ret)
                 goto out_cleanup_blk_queue;
 
-        ret = nvme_fc_connect_io_queues(ctrl, ctrl->ctrl.opts->queue_size);
+        ret = nvme_fc_connect_io_queues(ctrl, ctrl->ctrl.sqsize + 1);
         if (ret)
                 goto out_delete_hw_queues;
 
@@ -2617,11 +2532,11 @@ nvme_fc_reinit_io_queues(struct nvme_fc_ctrl *ctrl)
         if (ret)
                 goto out_free_io_queues;
 
-        ret = nvme_fc_create_hw_io_queues(ctrl, ctrl->ctrl.opts->queue_size);
+        ret = nvme_fc_create_hw_io_queues(ctrl, ctrl->ctrl.sqsize + 1);
         if (ret)
                 goto out_free_io_queues;
 
-        ret = nvme_fc_connect_io_queues(ctrl, ctrl->ctrl.opts->queue_size);
+        ret = nvme_fc_connect_io_queues(ctrl, ctrl->ctrl.sqsize + 1);
         if (ret)
                 goto out_delete_hw_queues;
 
@@ -2717,13 +2632,12 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
         nvme_fc_init_queue(ctrl, 0);
 
         ret = __nvme_fc_create_hw_queue(ctrl, &ctrl->queues[0], 0,
-                                NVME_AQ_BLK_MQ_DEPTH);
+                                NVME_AQ_DEPTH);
         if (ret)
                 goto out_free_queue;
 
         ret = nvme_fc_connect_admin_queue(ctrl, &ctrl->queues[0],
-                                NVME_AQ_BLK_MQ_DEPTH,
-                                (NVME_AQ_BLK_MQ_DEPTH / 4));
+                                NVME_AQ_DEPTH, (NVME_AQ_DEPTH / 4));
         if (ret)
                 goto out_delete_hw_queue;
 
@@ -2751,7 +2665,7 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
         }
 
         ctrl->ctrl.sqsize =
-                min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap) + 1, ctrl->ctrl.sqsize);
+                min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap), ctrl->ctrl.sqsize);
 
         ret = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap);
         if (ret)
@@ -2784,6 +2698,14 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
                 opts->queue_size = ctrl->ctrl.maxcmd;
         }
 
+        if (opts->queue_size > ctrl->ctrl.sqsize + 1) {
+                /* warn if sqsize is lower than queue_size */
+                dev_warn(ctrl->ctrl.device,
+                        "queue_size %zu > ctrl sqsize %u, clamping down\n",
+                        opts->queue_size, ctrl->ctrl.sqsize + 1);
+                opts->queue_size = ctrl->ctrl.sqsize + 1;
+        }
+
         ret = nvme_fc_init_aen_ops(ctrl);
         if (ret)
                 goto out_term_aen_ops;
@@ -2943,7 +2865,7 @@ nvme_fc_reconnect_or_delete(struct nvme_fc_ctrl *ctrl, int status)
         unsigned long recon_delay = ctrl->ctrl.opts->reconnect_delay * HZ;
         bool recon = true;
 
-        if (ctrl->ctrl.state != NVME_CTRL_RECONNECTING)
+        if (ctrl->ctrl.state != NVME_CTRL_CONNECTING)
                 return;
 
         if (portptr->port_state == FC_OBJSTATE_ONLINE)
@@ -2991,10 +2913,10 @@ nvme_fc_reset_ctrl_work(struct work_struct *work)
         /* will block will waiting for io to terminate */
         nvme_fc_delete_association(ctrl);
 
-        if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RECONNECTING)) {
+        if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_CONNECTING)) {
                 dev_err(ctrl->ctrl.device,
                         "NVME-FC{%d}: error_recovery: Couldn't change state "
-                        "to RECONNECTING\n", ctrl->cnum);
+                        "to CONNECTING\n", ctrl->cnum);
                 return;
         }
 
@@ -3195,7 +3117,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
          * transport errors (frame drop, LS failure) inherently must kill
          * the association. The transport is coded so that any command used
          * to create the association (prior to a LIVE state transition
-         * while NEW or RECONNECTING) will fail if it completes in error or
+         * while NEW or CONNECTING) will fail if it completes in error or
          * times out.
          *
          * As such: as the connect request was mostly likely due to a
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 3b211d9e58b8..060f69e03427 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -198,30 +198,16 @@ void nvme_mpath_add_disk(struct nvme_ns_head *head)
 {
         if (!head->disk)
                 return;
-        device_add_disk(&head->subsys->dev, head->disk);
-        if (sysfs_create_group(&disk_to_dev(head->disk)->kobj,
-                        &nvme_ns_id_attr_group))
-                pr_warn("%s: failed to create sysfs group for identification\n",
-                        head->disk->disk_name);
-}
-
-void nvme_mpath_add_disk_links(struct nvme_ns *ns)
-{
-        struct kobject *slave_disk_kobj, *holder_disk_kobj;
-
-        if (!ns->head->disk)
-                return;
-
-        slave_disk_kobj = &disk_to_dev(ns->disk)->kobj;
-        if (sysfs_create_link(ns->head->disk->slave_dir, slave_disk_kobj,
-                        kobject_name(slave_disk_kobj)))
-                return;
 
-        holder_disk_kobj = &disk_to_dev(ns->head->disk)->kobj;
-        if (sysfs_create_link(ns->disk->part0.holder_dir, holder_disk_kobj,
-                        kobject_name(holder_disk_kobj)))
-                sysfs_remove_link(ns->head->disk->slave_dir,
-                        kobject_name(slave_disk_kobj));
+        mutex_lock(&head->subsys->lock);
+        if (!(head->disk->flags & GENHD_FL_UP)) {
+                device_add_disk(&head->subsys->dev, head->disk);
+                if (sysfs_create_group(&disk_to_dev(head->disk)->kobj,
+                                &nvme_ns_id_attr_group))
+                        pr_warn("%s: failed to create sysfs group for identification\n",
+                                head->disk->disk_name);
+        }
+        mutex_unlock(&head->subsys->lock);
 }
 
 void nvme_mpath_remove_disk(struct nvme_ns_head *head)
@@ -238,14 +224,3 @@ void nvme_mpath_remove_disk(struct nvme_ns_head *head)
         blk_cleanup_queue(head->disk->queue);
         put_disk(head->disk);
 }
-
-void nvme_mpath_remove_disk_links(struct nvme_ns *ns)
-{
-        if (!ns->head->disk)
-                return;
-
-        sysfs_remove_link(ns->disk->part0.holder_dir,
-                        kobject_name(&disk_to_dev(ns->head->disk)->kobj));
-        sysfs_remove_link(ns->head->disk->slave_dir,
-                        kobject_name(&disk_to_dev(ns->disk)->kobj));
-}
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 8e4550fa08f8..d733b14ede9d 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -123,7 +123,7 @@ enum nvme_ctrl_state {
         NVME_CTRL_LIVE,
         NVME_CTRL_ADMIN_ONLY,    /* Only admin queue live */
         NVME_CTRL_RESETTING,
-        NVME_CTRL_RECONNECTING,
+        NVME_CTRL_CONNECTING,
         NVME_CTRL_DELETING,
         NVME_CTRL_DEAD,
 };
@@ -183,6 +183,7 @@ struct nvme_ctrl {
         struct work_struct scan_work;
         struct work_struct async_event_work;
         struct delayed_work ka_work;
+        struct nvme_command ka_cmd;
         struct work_struct fw_act_work;
 
         /* Power saving configuration */
@@ -409,9 +410,7 @@ bool nvme_req_needs_failover(struct request *req, blk_status_t error);
 void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl);
 int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl,struct nvme_ns_head *head);
 void nvme_mpath_add_disk(struct nvme_ns_head *head);
-void nvme_mpath_add_disk_links(struct nvme_ns *ns);
 void nvme_mpath_remove_disk(struct nvme_ns_head *head);
-void nvme_mpath_remove_disk_links(struct nvme_ns *ns);
 
 static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns)
 {
@@ -453,12 +452,6 @@ static inline void nvme_mpath_add_disk(struct nvme_ns_head *head)
 static inline void nvme_mpath_remove_disk(struct nvme_ns_head *head)
 {
 }
-static inline void nvme_mpath_add_disk_links(struct nvme_ns *ns)
-{
-}
-static inline void nvme_mpath_remove_disk_links(struct nvme_ns *ns)
-{
-}
 static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns)
 {
 }
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 6fe7af00a1f4..b6f43b738f03 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1141,7 +1141,7 @@ static bool nvme_should_reset(struct nvme_dev *dev, u32 csts)
         /* If there is a reset/reinit ongoing, we shouldn't reset again. */
         switch (dev->ctrl.state) {
         case NVME_CTRL_RESETTING:
-        case NVME_CTRL_RECONNECTING:
+        case NVME_CTRL_CONNECTING:
                 return false;
         default:
                 break;
@@ -1153,12 +1153,6 @@ static bool nvme_should_reset(struct nvme_dev *dev, u32 csts)
         if (!(csts & NVME_CSTS_CFS) && !nssro)
                 return false;
 
-        /* If PCI error recovery process is happening, we cannot reset or
-         * the recovery mechanism will surely fail.
-         */
-        if (pci_channel_offline(to_pci_dev(dev->dev)))
-                return false;
-
         return true;
 }
 
@@ -1189,6 +1183,13 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
         struct nvme_command cmd;
         u32 csts = readl(dev->bar + NVME_REG_CSTS);
 
+        /* If PCI error recovery process is happening, we cannot reset or
+         * the recovery mechanism will surely fail.
+         */
+        mb();
+        if (pci_channel_offline(to_pci_dev(dev->dev)))
+                return BLK_EH_RESET_TIMER;
+
         /*
          * Reset immediately if the controller is failed
          */
@@ -1215,13 +1216,17 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
          * cancellation error. All outstanding requests are completed on
          * shutdown, so we return BLK_EH_HANDLED.
          */
-        if (dev->ctrl.state == NVME_CTRL_RESETTING) {
+        switch (dev->ctrl.state) {
+        case NVME_CTRL_CONNECTING:
+        case NVME_CTRL_RESETTING:
                 dev_warn(dev->ctrl.device,
                          "I/O %d QID %d timeout, disable controller\n",
                          req->tag, nvmeq->qid);
                 nvme_dev_disable(dev, false);
                 nvme_req(req)->flags |= NVME_REQ_CANCELLED;
                 return BLK_EH_HANDLED;
+        default:
+                break;
         }
 
         /*
@@ -1364,18 +1369,14 @@ static int nvme_cmb_qdepth(struct nvme_dev *dev, int nr_io_queues,
 static int nvme_alloc_sq_cmds(struct nvme_dev *dev, struct nvme_queue *nvmeq,
                                 int qid, int depth)
 {
-        if (qid && dev->cmb && use_cmb_sqes && (dev->cmbsz & NVME_CMBSZ_SQS)) {
-                unsigned offset = (qid - 1) * roundup(SQ_SIZE(depth),
-                                                      dev->ctrl.page_size);
-                nvmeq->sq_dma_addr = dev->cmb_bus_addr + offset;
-                nvmeq->sq_cmds_io = dev->cmb + offset;
-        } else {
-                nvmeq->sq_cmds = dma_alloc_coherent(dev->dev, SQ_SIZE(depth),
-                                        &nvmeq->sq_dma_addr, GFP_KERNEL);
-                if (!nvmeq->sq_cmds)
-                        return -ENOMEM;
-        }
+        /* CMB SQEs will be mapped before creation */
+        if (qid && dev->cmb && use_cmb_sqes && (dev->cmbsz & NVME_CMBSZ_SQS))
+                return 0;
 
+        nvmeq->sq_cmds = dma_alloc_coherent(dev->dev, SQ_SIZE(depth),
+                                            &nvmeq->sq_dma_addr, GFP_KERNEL);
+        if (!nvmeq->sq_cmds)
+                return -ENOMEM;
         return 0;
 }
 
@@ -1449,10 +1450,17 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid)
         struct nvme_dev *dev = nvmeq->dev;
         int result;
 
+        if (dev->cmb && use_cmb_sqes && (dev->cmbsz & NVME_CMBSZ_SQS)) {
+                unsigned offset = (qid - 1) * roundup(SQ_SIZE(nvmeq->q_depth),
+                                                      dev->ctrl.page_size);
+                nvmeq->sq_dma_addr = dev->cmb_bus_addr + offset;
+                nvmeq->sq_cmds_io = dev->cmb + offset;
+        }
+
         nvmeq->cq_vector = qid - 1;
         result = adapter_alloc_cq(dev, qid, nvmeq);
         if (result < 0)
-                return result;
+                goto release_vector;
 
         result = adapter_alloc_sq(dev, qid, nvmeq);
         if (result < 0)
@@ -1466,9 +1474,12 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid)
         return result;
 
  release_sq:
+        dev->online_queues--;
         adapter_delete_sq(dev, qid);
  release_cq:
         adapter_delete_cq(dev, qid);
+ release_vector:
+        nvmeq->cq_vector = -1;
         return result;
 }
 
@@ -1903,7 +1914,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
         int result, nr_io_queues;
         unsigned long size;
 
-        nr_io_queues = num_present_cpus();
+        nr_io_queues = num_possible_cpus();
         result = nvme_set_queue_count(&dev->ctrl, &nr_io_queues);
         if (result < 0)
                 return result;
@@ -2288,12 +2299,12 @@ static void nvme_reset_work(struct work_struct *work)
                 nvme_dev_disable(dev, false);
 
         /*
-         * Introduce RECONNECTING state from nvme-fc/rdma transports to mark the
+         * Introduce CONNECTING state from nvme-fc/rdma transports to mark the
          * initializing procedure here.
          */
-        if (!nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_RECONNECTING)) {
+        if (!nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_CONNECTING)) {
                 dev_warn(dev->ctrl.device,
-                        "failed to mark controller RECONNECTING\n");
+                        "failed to mark controller CONNECTING\n");
                 goto out;
         }
 
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 2bc059f7d73c..4d84a73ee12d 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -887,7 +887,7 @@ free_ctrl:
 static void nvme_rdma_reconnect_or_remove(struct nvme_rdma_ctrl *ctrl)
 {
         /* If we are resetting/deleting then do nothing */
-        if (ctrl->ctrl.state != NVME_CTRL_RECONNECTING) {
+        if (ctrl->ctrl.state != NVME_CTRL_CONNECTING) {
                 WARN_ON_ONCE(ctrl->ctrl.state == NVME_CTRL_NEW ||
                         ctrl->ctrl.state == NVME_CTRL_LIVE);
                 return;
@@ -973,7 +973,7 @@ static void nvme_rdma_error_recovery_work(struct work_struct *work)
         blk_mq_unquiesce_queue(ctrl->ctrl.admin_q);
         nvme_start_queues(&ctrl->ctrl);
 
-        if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RECONNECTING)) {
+        if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_CONNECTING)) {
                 /* state change failure should never happen */
                 WARN_ON_ONCE(1);
                 return;
@@ -1051,7 +1051,7 @@ static void nvme_rdma_unmap_data(struct nvme_rdma_queue *queue,
         struct nvme_rdma_device *dev = queue->device;
         struct ib_device *ibdev = dev->dev;
 
-        if (!blk_rq_bytes(rq))
+        if (!blk_rq_payload_bytes(rq))
                 return;
 
         if (req->mr) {
@@ -1166,7 +1166,7 @@ static int nvme_rdma_map_data(struct nvme_rdma_queue *queue,
 
         c->common.flags |= NVME_CMD_SGL_METABUF;
 
-        if (!blk_rq_bytes(rq))
+        if (!blk_rq_payload_bytes(rq))
                 return nvme_rdma_set_sg_null(c);
 
         req->sg_table.sgl = req->first_sgl;
@@ -1756,7 +1756,7 @@ static void nvme_rdma_reset_ctrl_work(struct work_struct *work)
         nvme_stop_ctrl(&ctrl->ctrl);
         nvme_rdma_shutdown_ctrl(ctrl, false);
 
-        if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RECONNECTING)) {
+        if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_CONNECTING)) {
                 /* state change failure should never happen */
                 WARN_ON_ONCE(1);
                 return;
@@ -1784,11 +1784,8 @@ static void nvme_rdma_reset_ctrl_work(struct work_struct *work)
         return;
 
 out_fail:
-        dev_warn(ctrl->ctrl.device, "Removing after reset failure\n");
-        nvme_remove_namespaces(&ctrl->ctrl);
-        nvme_rdma_shutdown_ctrl(ctrl, true);
-        nvme_uninit_ctrl(&ctrl->ctrl);
-        nvme_put_ctrl(&ctrl->ctrl);
+        ++ctrl->ctrl.nr_reconnects;
+        nvme_rdma_reconnect_or_remove(ctrl);
 }
 
 static const struct nvme_ctrl_ops nvme_rdma_ctrl_ops = {
@@ -1942,6 +1939,9 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
         if (!ctrl->queues)
                 goto out_uninit_ctrl;
 
+        changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_CONNECTING);
+        WARN_ON_ONCE(!changed);
+
         ret = nvme_rdma_configure_admin_queue(ctrl, true);
         if (ret)
                 goto out_kfree_queues;
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 0bd737117a80..a78029e4e5f4 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -520,9 +520,12 @@ bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq,
                 goto fail;
         }
 
-        /* either variant of SGLs is fine, as we don't support metadata */
-        if (unlikely((flags & NVME_CMD_SGL_ALL) != NVME_CMD_SGL_METABUF &&
-                     (flags & NVME_CMD_SGL_ALL) != NVME_CMD_SGL_METASEG)) {
+        /*
+         * For fabrics, PSDT field shall describe metadata pointer (MPTR) that
+         * contains an address of a single contiguous physical buffer that is
+         * byte aligned.
+         */
+        if (unlikely((flags & NVME_CMD_SGL_ALL) != NVME_CMD_SGL_METABUF)) {
                 status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
                 goto fail;
         }
diff --git a/drivers/nvme/target/io-cmd.c b/drivers/nvme/target/io-cmd.c
index 0a4372a016f2..28bbdff4a88b 100644
--- a/drivers/nvme/target/io-cmd.c
+++ b/drivers/nvme/target/io-cmd.c
@@ -105,10 +105,13 @@ static void nvmet_execute_flush(struct nvmet_req *req)
 static u16 nvmet_discard_range(struct nvmet_ns *ns,
                 struct nvme_dsm_range *range, struct bio **bio)
 {
-        if (__blkdev_issue_discard(ns->bdev,
+        int ret;
+
+        ret = __blkdev_issue_discard(ns->bdev,
                         le64_to_cpu(range->slba) << (ns->blksize_shift - 9),
                         le32_to_cpu(range->nlb) << (ns->blksize_shift - 9),
-                        GFP_KERNEL, 0, bio))
+                        GFP_KERNEL, 0, bio);
+        if (ret && ret != -EOPNOTSUPP)
                 return NVME_SC_INTERNAL | NVME_SC_DNR;
         return 0;
 }
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 7991ec3a17db..861d1509b22b 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -184,7 +184,7 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
                 return BLK_STS_OK;
         }
 
-        if (blk_rq_bytes(req)) {
+        if (blk_rq_payload_bytes(req)) {
                 iod->sg_table.sgl = iod->first_sgl;
                 if (sg_alloc_table_chained(&iod->sg_table,
                                 blk_rq_nr_phys_segments(req),
@@ -193,7 +193,7 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 
                 iod->req.sg = iod->sg_table.sgl;
                 iod->req.sg_cnt = blk_rq_map_sg(req->q, req, iod->sg_table.sgl);
-                iod->req.transfer_len = blk_rq_bytes(req);
+                iod->req.transfer_len = blk_rq_payload_bytes(req);
         }
 
         blk_mq_start_request(req);
diff --git a/drivers/of/property.c b/drivers/of/property.c
index 36ed84e26d9c..f46828e3b082 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -977,11 +977,11 @@ static int of_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
         return 0;
 }
 
-static void *
+static const void *
 of_fwnode_device_get_match_data(const struct fwnode_handle *fwnode,
                                 const struct device *dev)
 {
-        return (void *)of_device_get_match_data(dev);
+        return of_device_get_match_data(dev);
 }
 
 const struct fwnode_operations of_fwnode_ops = {
diff --git a/drivers/opp/cpu.c b/drivers/opp/cpu.c
index 2d87bc1adf38..0c0910709435 100644
--- a/drivers/opp/cpu.c
+++ b/drivers/opp/cpu.c
@@ -55,7 +55,7 @@ int dev_pm_opp_init_cpufreq_table(struct device *dev,
         if (max_opps <= 0)
                 return max_opps ? max_opps : -ENODATA;
 
-        freq_table = kcalloc((max_opps + 1), sizeof(*freq_table), GFP_ATOMIC);
+        freq_table = kcalloc((max_opps + 1), sizeof(*freq_table), GFP_KERNEL);
         if (!freq_table)
                 return -ENOMEM;
 
diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/dwc/pcie-designware-host.c
index 8de2d5c69b1d..dc9303abda42 100644
--- a/drivers/pci/dwc/pcie-designware-host.c
+++ b/drivers/pci/dwc/pcie-designware-host.c
@@ -613,7 +613,7 @@ void dw_pcie_setup_rc(struct pcie_port *pp)
         /* setup bus numbers */
         val = dw_pcie_readl_dbi(pci, PCI_PRIMARY_BUS);
         val &= 0xff000000;
-        val |= 0x00010100;
+        val |= 0x00ff0100;
         dw_pcie_writel_dbi(pci, PCI_PRIMARY_BUS, val);
 
         /* setup command register */
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index ec582d37c189..c3ba14f6444e 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3420,22 +3420,29 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PORT_RIDGE,
 
 static void quirk_chelsio_extend_vpd(struct pci_dev *dev)
 {
-        pci_set_vpd_size(dev, 8192);
-}
-
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x20, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x21, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x22, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x23, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x24, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x25, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x26, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x30, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x31, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x32, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x35, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x36, quirk_chelsio_extend_vpd);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x37, quirk_chelsio_extend_vpd);
+        int chip = (dev->device & 0xf000) >> 12;
+        int func = (dev->device & 0x0f00) >>  8;
+        int prod = (dev->device & 0x00ff) >>  0;
+
+        /*
+         * If this is a T3-based adapter, there's a 1KB VPD area at offset
+         * 0xc00 which contains the preferred VPD values.  If this is a T4 or
+         * later based adapter, the special VPD is at offset 0x400 for the
+         * Physical Functions (the SR-IOV Virtual Functions have no VPD
+         * Capabilities).  The PCI VPD Access core routines will normally
+         * compute the size of the VPD by parsing the VPD Data Structure at
+         * offset 0x000.  This will result in silent failures when attempting
+         * to accesses these other VPD areas which are beyond those computed
+         * limits.
+         */
+        if (chip == 0x0 && prod >= 0x20)
+                pci_set_vpd_size(dev, 8192);
+        else if (chip >= 0x4 && func < 0x8)
+                pci_set_vpd_size(dev, 2048);
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID,
+                        quirk_chelsio_extend_vpd);
 
 #ifdef CONFIG_ACPI
 /*
@@ -3902,6 +3909,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9230,
                          quirk_dma_func1_alias);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0642,
                          quirk_dma_func1_alias);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0645,
+                         quirk_dma_func1_alias);
 /* https://bugs.gentoo.org/show_bug.cgi?id=497630 */
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_JMICRON,
                          PCI_DEVICE_ID_JMICRON_JMB388_ESD,
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index 369d48d6c6f1..365447240d95 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -401,6 +401,10 @@ void pci_release_resource(struct pci_dev *dev, int resno)
         struct resource *res = dev->resource + resno;
 
         pci_info(dev, "BAR %d: releasing %pR\n", resno, res);
+
+        if (!res->parent)
+                return;
+
         release_resource(res);
         res->end = resource_size(res) - 1;
         res->start = 0;
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index 7bc5eee96b31..f63db346c219 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -17,7 +17,6 @@
 #include <linux/export.h>
 #include <linux/kernel.h>
 #include <linux/perf/arm_pmu.h>
-#include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/sched/clock.h>
 #include <linux/spinlock.h>
@@ -26,6 +25,9 @@
 
 #include <asm/irq_regs.h>
 
+static DEFINE_PER_CPU(struct arm_pmu *, cpu_armpmu);
+static DEFINE_PER_CPU(int, cpu_irq);
+
 static int
 armpmu_map_cache_event(const unsigned (*cache_map)
                                       [PERF_COUNT_HW_CACHE_MAX]
@@ -320,17 +322,9 @@ validate_group(struct perf_event *event)
         return 0;
 }
 
-static struct arm_pmu_platdata *armpmu_get_platdata(struct arm_pmu *armpmu)
-{
-        struct platform_device *pdev = armpmu->plat_device;
-
-        return pdev ? dev_get_platdata(&pdev->dev) : NULL;
-}
-
 static irqreturn_t armpmu_dispatch_irq(int irq, void *dev)
 {
         struct arm_pmu *armpmu;
-        struct arm_pmu_platdata *plat;
         int ret;
         u64 start_clock, finish_clock;
 
@@ -341,14 +335,11 @@ static irqreturn_t armpmu_dispatch_irq(int irq, void *dev)
          * dereference.
          */
         armpmu = *(void **)dev;
-
-        plat = armpmu_get_platdata(armpmu);
+        if (WARN_ON_ONCE(!armpmu))
+                return IRQ_NONE;
 
         start_clock = sched_clock();
-        if (plat && plat->handle_irq)
-                ret = plat->handle_irq(irq, armpmu, armpmu->handle_irq);
-        else
-                ret = armpmu->handle_irq(irq, armpmu);
+        ret = armpmu->handle_irq(irq, armpmu);
         finish_clock = sched_clock();
 
         perf_sample_event_took(finish_clock - start_clock);
@@ -531,54 +522,41 @@ int perf_num_counters(void)
 }
 EXPORT_SYMBOL_GPL(perf_num_counters);
 
-void armpmu_free_irq(struct arm_pmu *armpmu, int cpu)
+static int armpmu_count_irq_users(const int irq)
 {
-        struct pmu_hw_events __percpu *hw_events = armpmu->hw_events;
-        int irq = per_cpu(hw_events->irq, cpu);
+        int cpu, count = 0;
 
-        if (!cpumask_test_and_clear_cpu(cpu, &armpmu->active_irqs))
-                return;
-
-        if (irq_is_percpu_devid(irq)) {
-                free_percpu_irq(irq, &hw_events->percpu_pmu);
-                cpumask_clear(&armpmu->active_irqs);
-                return;
+        for_each_possible_cpu(cpu) {
+                if (per_cpu(cpu_irq, cpu) == irq)
+                        count++;
         }
 
-        free_irq(irq, per_cpu_ptr(&hw_events->percpu_pmu, cpu));
+        return count;
 }
 
-void armpmu_free_irqs(struct arm_pmu *armpmu)
+void armpmu_free_irq(int irq, int cpu)
 {
-        int cpu;
+        if (per_cpu(cpu_irq, cpu) == 0)
+                return;
+        if (WARN_ON(irq != per_cpu(cpu_irq, cpu)))
+                return;
+
+        if (!irq_is_percpu_devid(irq))
+                free_irq(irq, per_cpu_ptr(&cpu_armpmu, cpu));
+        else if (armpmu_count_irq_users(irq) == 1)
+                free_percpu_irq(irq, &cpu_armpmu);
 
-        for_each_cpu(cpu, &armpmu->supported_cpus)
-                armpmu_free_irq(armpmu, cpu);
+        per_cpu(cpu_irq, cpu) = 0;
 }
 
-int armpmu_request_irq(struct arm_pmu *armpmu, int cpu)
+int armpmu_request_irq(int irq, int cpu)
 {
         int err = 0;
-        struct pmu_hw_events __percpu *hw_events = armpmu->hw_events;
         const irq_handler_t handler = armpmu_dispatch_irq;
-        int irq = per_cpu(hw_events->irq, cpu);
         if (!irq)
                 return 0;
 
-        if (irq_is_percpu_devid(irq) && cpumask_empty(&armpmu->active_irqs)) {
-                err = request_percpu_irq(irq, handler, "arm-pmu",
-                                         &hw_events->percpu_pmu);
-        } else if (irq_is_percpu_devid(irq)) {
-                int other_cpu = cpumask_first(&armpmu->active_irqs);
-                int other_irq = per_cpu(hw_events->irq, other_cpu);
-
-                if (irq != other_irq) {
-                        pr_warn("mismatched PPIs detected.\n");
-                        err = -EINVAL;
-                        goto err_out;
-                }
-        } else {
-                struct arm_pmu_platdata *platdata = armpmu_get_platdata(armpmu);
+        if (!irq_is_percpu_devid(irq)) {
                 unsigned long irq_flags;
 
                 err = irq_force_affinity(irq, cpumask_of(cpu));
@@ -589,22 +567,22 @@ int armpmu_request_irq(struct arm_pmu *armpmu, int cpu)
                         goto err_out;
                 }
 
-                if (platdata && platdata->irq_flags) {
-                        irq_flags = platdata->irq_flags;
-                } else {
-                        irq_flags = IRQF_PERCPU |
-                                    IRQF_NOBALANCING |
-                                    IRQF_NO_THREAD;
-                }
+                irq_flags = IRQF_PERCPU |
+                            IRQF_NOBALANCING |
+                            IRQF_NO_THREAD;
 
+                irq_set_status_flags(irq, IRQ_NOAUTOEN);
                 err = request_irq(irq, handler, irq_flags, "arm-pmu",
-                                  per_cpu_ptr(&hw_events->percpu_pmu, cpu));
+                                  per_cpu_ptr(&cpu_armpmu, cpu));
+        } else if (armpmu_count_irq_users(irq) == 0) {
+                err = request_percpu_irq(irq, handler, "arm-pmu",
+                                         &cpu_armpmu);
         }
 
         if (err)
                 goto err_out;
 
-        cpumask_set_cpu(cpu, &armpmu->active_irqs);
+        per_cpu(cpu_irq, cpu) = irq;
         return 0;
 
 err_out:
@@ -612,19 +590,6 @@ err_out:
         return err;
 }
 
-int armpmu_request_irqs(struct arm_pmu *armpmu)
-{
-        int cpu, err;
-
-        for_each_cpu(cpu, &armpmu->supported_cpus) {
-                err = armpmu_request_irq(armpmu, cpu);
-                if (err)
-                        break;
-        }
-
-        return err;
-}
-
 static int armpmu_get_cpu_irq(struct arm_pmu *pmu, int cpu)
 {
         struct pmu_hw_events __percpu *hw_events = pmu->hw_events;
@@ -647,12 +612,14 @@ static int arm_perf_starting_cpu(unsigned int cpu, struct hlist_node *node)
         if (pmu->reset)
                 pmu->reset(pmu);
 
+        per_cpu(cpu_armpmu, cpu) = pmu;
+
         irq = armpmu_get_cpu_irq(pmu, cpu);
         if (irq) {
-                if (irq_is_percpu_devid(irq)) {
+                if (irq_is_percpu_devid(irq))
                         enable_percpu_irq(irq, IRQ_TYPE_NONE);
-                        return 0;
-                }
+                else
+                        enable_irq(irq);
         }
 
         return 0;
@@ -667,8 +634,14 @@ static int arm_perf_teardown_cpu(unsigned int cpu, struct hlist_node *node)
                 return 0;
 
         irq = armpmu_get_cpu_irq(pmu, cpu);
-        if (irq && irq_is_percpu_devid(irq))
-                disable_percpu_irq(irq);
+        if (irq) {
+                if (irq_is_percpu_devid(irq))
+                        disable_percpu_irq(irq);
+                else
+                        disable_irq_nosync(irq);
+        }
+
+        per_cpu(cpu_armpmu, cpu) = NULL;
 
         return 0;
 }
@@ -800,18 +773,18 @@ static void cpu_pmu_destroy(struct arm_pmu *cpu_pmu)
                                             &cpu_pmu->node);
 }
 
-struct arm_pmu *armpmu_alloc(void)
+static struct arm_pmu *__armpmu_alloc(gfp_t flags)
 {
         struct arm_pmu *pmu;
         int cpu;
 
-        pmu = kzalloc(sizeof(*pmu), GFP_KERNEL);
+        pmu = kzalloc(sizeof(*pmu), flags);
         if (!pmu) {
                 pr_info("failed to allocate PMU device!\n");
                 goto out;
         }
 
-        pmu->hw_events = alloc_percpu(struct pmu_hw_events);
+        pmu->hw_events = alloc_percpu_gfp(struct pmu_hw_events, flags);
         if (!pmu->hw_events) {
                 pr_info("failed to allocate per-cpu PMU data.\n");
                 goto out_free_pmu;
@@ -857,6 +830,17 @@ out:
         return NULL;
 }
 
+struct arm_pmu *armpmu_alloc(void)
+{
+        return __armpmu_alloc(GFP_KERNEL);
+}
+
+struct arm_pmu *armpmu_alloc_atomic(void)
+{
+        return __armpmu_alloc(GFP_ATOMIC);
+}
+
+
 void armpmu_free(struct arm_pmu *pmu)
 {
         free_percpu(pmu->hw_events);
diff --git a/drivers/perf/arm_pmu_acpi.c b/drivers/perf/arm_pmu_acpi.c
index 705f1a390e31..0f197516d708 100644
--- a/drivers/perf/arm_pmu_acpi.c
+++ b/drivers/perf/arm_pmu_acpi.c
@@ -11,6 +11,8 @@
 #include <linux/acpi.h>
 #include <linux/cpumask.h>
 #include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/irqdesc.h>
 #include <linux/percpu.h>
 #include <linux/perf/arm_pmu.h>
 
@@ -87,7 +89,13 @@ static int arm_pmu_acpi_parse_irqs(void)
                         pr_warn("No ACPI PMU IRQ for CPU%d\n", cpu);
                 }
 
+                /*
+                 * Log and request the IRQ so the core arm_pmu code can manage
+                 * it. We'll have to sanity-check IRQs later when we associate
+                 * them with their PMUs.
+                 */
                 per_cpu(pmu_irqs, cpu) = irq;
+                armpmu_request_irq(irq, cpu);
         }
 
         return 0;
@@ -127,7 +135,7 @@ static struct arm_pmu *arm_pmu_acpi_find_alloc_pmu(void)
                 return pmu;
         }
 
-        pmu = armpmu_alloc();
+        pmu = armpmu_alloc_atomic();
         if (!pmu) {
                 pr_warn("Unable to allocate PMU for CPU%d\n",
                         smp_processor_id());
@@ -140,6 +148,35 @@ static struct arm_pmu *arm_pmu_acpi_find_alloc_pmu(void)
 }
 
 /*
+ * Check whether the new IRQ is compatible with those already associated with
+ * the PMU (e.g. we don't have mismatched PPIs).
+ */
+static bool pmu_irq_matches(struct arm_pmu *pmu, int irq)
+{
+        struct pmu_hw_events __percpu *hw_events = pmu->hw_events;
+        int cpu;
+
+        if (!irq)
+                return true;
+
+        for_each_cpu(cpu, &pmu->supported_cpus) {
+                int other_irq = per_cpu(hw_events->irq, cpu);
+                if (!other_irq)
+                        continue;
+
+                if (irq == other_irq)
+                        continue;
+                if (!irq_is_percpu_devid(irq) && !irq_is_percpu_devid(other_irq))
+                        continue;
+
+                pr_warn("mismatched PPIs detected\n");
+                return false;
+        }
+
+        return true;
+}
+
+/*
  * This must run before the common arm_pmu hotplug logic, so that we can
  * associate a CPU and its interrupt before the common code tries to manage the
  * affinity and so on.
@@ -164,19 +201,14 @@ static int arm_pmu_acpi_cpu_starting(unsigned int cpu)
         if (!pmu)
                 return -ENOMEM;
 
-        cpumask_set_cpu(cpu, &pmu->supported_cpus);
-
         per_cpu(probed_pmus, cpu) = pmu;
 
-        /*
-         * Log and request the IRQ so the core arm_pmu code can manage it.  In
-         * some situations (e.g. mismatched PPIs), we may fail to request the
-         * IRQ. However, it may be too late for us to do anything about it.
-         * The common ARM PMU code will log a warning in this case.
-         */
-        hw_events = pmu->hw_events;
-        per_cpu(hw_events->irq, cpu) = irq;
-        armpmu_request_irq(pmu, cpu);
+        if (pmu_irq_matches(pmu, irq)) {
+                hw_events = pmu->hw_events;
+                per_cpu(hw_events->irq, cpu) = irq;
+        }
+
+        cpumask_set_cpu(cpu, &pmu->supported_cpus);
 
         /*
          * Ideally, we'd probe the PMU here when we find the first matching
@@ -247,11 +279,6 @@ static int arm_pmu_acpi_init(void)
         if (acpi_disabled)
                 return 0;
 
-        /*
-         * We can't request IRQs yet, since we don't know the cookie value
-         * until we know which CPUs share the same logical PMU. We'll handle
-         * that in arm_pmu_acpi_cpu_starting().
-         */
         ret = arm_pmu_acpi_parse_irqs();
         if (ret)
                 return ret;
diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 46501cc79fd7..7729eda5909d 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -127,13 +127,6 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
                         pdev->dev.of_node);
         }
 
-        /*
-         * Some platforms have all PMU IRQs OR'd into a single IRQ, with a
-         * special platdata function that attempts to demux them.
-         */
-        if (dev_get_platdata(&pdev->dev))
-                cpumask_setall(&pmu->supported_cpus);
-
         for (i = 0; i < num_irqs; i++) {
                 int cpu, irq;
 
@@ -164,6 +157,36 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
         return 0;
 }
 
+static int armpmu_request_irqs(struct arm_pmu *armpmu)
+{
+        struct pmu_hw_events __percpu *hw_events = armpmu->hw_events;
+        int cpu, err;
+
+        for_each_cpu(cpu, &armpmu->supported_cpus) {
+                int irq = per_cpu(hw_events->irq, cpu);
+                if (!irq)
+                        continue;
+
+                err = armpmu_request_irq(irq, cpu);
+                if (err)
+                        break;
+        }
+
+        return err;
+}
+
+static void armpmu_free_irqs(struct arm_pmu *armpmu)
+{
+        int cpu;
+        struct pmu_hw_events __percpu *hw_events = armpmu->hw_events;
+
+        for_each_cpu(cpu, &armpmu->supported_cpus) {
+                int irq = per_cpu(hw_events->irq, cpu);
+
+                armpmu_free_irq(irq, cpu);
+        }
+}
+
 int arm_pmu_device_probe(struct platform_device *pdev,
                          const struct of_device_id *of_table,
                          const struct pmu_probe_info *probe_table)
diff --git a/drivers/phy/qualcomm/phy-qcom-ufs.c b/drivers/phy/qualcomm/phy-qcom-ufs.c
index c5ff4525edef..c5493ea51282 100644
--- a/drivers/phy/qualcomm/phy-qcom-ufs.c
+++ b/drivers/phy/qualcomm/phy-qcom-ufs.c
@@ -675,3 +675,8 @@ int ufs_qcom_phy_power_off(struct phy *generic_phy)
         return 0;
 }
 EXPORT_SYMBOL_GPL(ufs_qcom_phy_power_off);
+
+MODULE_AUTHOR("Yaniv Gardi <ygardi@codeaurora.org>");
+MODULE_AUTHOR("Vivek Gautam <vivek.gautam@codeaurora.org>");
+MODULE_DESCRIPTION("Universal Flash Storage (UFS) QCOM PHY");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/meson/pinctrl-meson-axg.c b/drivers/pinctrl/meson/pinctrl-meson-axg.c
index 1fda9d6c7ea3..4b91ff74779b 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-axg.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-axg.c
@@ -716,7 +716,7 @@ static const char * const uart_b_groups[] = {
         "uart_tx_b_x", "uart_rx_b_x", "uart_cts_b_x", "uart_rts_b_x",
 };
 
-static const char * const uart_ao_b_gpioz_groups[] = {
+static const char * const uart_ao_b_z_groups[] = {
         "uart_ao_tx_b_z", "uart_ao_rx_b_z",
         "uart_ao_cts_b_z", "uart_ao_rts_b_z",
 };
@@ -855,7 +855,7 @@ static struct meson_pmx_func meson_axg_periphs_functions[] = {
         FUNCTION(nand),
         FUNCTION(uart_a),
         FUNCTION(uart_b),
-        FUNCTION(uart_ao_b_gpioz),
+        FUNCTION(uart_ao_b_z),
         FUNCTION(i2c0),
         FUNCTION(i2c1),
         FUNCTION(i2c2),
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos-arm.c b/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
index c32399faff57..90c274490181 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
@@ -124,7 +124,7 @@ static const struct samsung_pin_bank_data s5pv210_pin_bank[] __initconst = {
         EXYNOS_PIN_BANK_EINTW(8, 0xc60, "gph3", 0x0c),
 };
 
-const struct samsung_pin_ctrl s5pv210_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl s5pv210_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 0 data */
                 .pin_banks      = s5pv210_pin_bank,
@@ -137,6 +137,11 @@ const struct samsung_pin_ctrl s5pv210_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data s5pv210_of_data __initconst = {
+        .ctrl           = s5pv210_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(s5pv210_pin_ctrl),
+};
+
 /* Pad retention control code for accessing PMU regmap */
 static atomic_t exynos_shared_retention_refcnt;
 
@@ -199,7 +204,7 @@ static const struct samsung_retention_data exynos3250_retention_data __initconst
  * Samsung pinctrl driver data for Exynos3250 SoC. Exynos3250 SoC includes
  * two gpio/pin-mux/pinconfig controllers.
  */
-const struct samsung_pin_ctrl exynos3250_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl exynos3250_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 0 data */
                 .pin_banks      = exynos3250_pin_banks0,
@@ -220,6 +225,11 @@ const struct samsung_pin_ctrl exynos3250_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data exynos3250_of_data __initconst = {
+        .ctrl           = exynos3250_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(exynos3250_pin_ctrl),
+};
+
 /* pin banks of exynos4210 pin-controller 0 */
 static const struct samsung_pin_bank_data exynos4210_pin_banks0[] __initconst = {
         EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
@@ -303,7 +313,7 @@ static const struct samsung_retention_data exynos4_audio_retention_data __initco
  * Samsung pinctrl driver data for Exynos4210 SoC. Exynos4210 SoC includes
  * three gpio/pin-mux/pinconfig controllers.
  */
-const struct samsung_pin_ctrl exynos4210_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl exynos4210_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 0 data */
                 .pin_banks      = exynos4210_pin_banks0,
@@ -329,6 +339,11 @@ const struct samsung_pin_ctrl exynos4210_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data exynos4210_of_data __initconst = {
+        .ctrl           = exynos4210_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(exynos4210_pin_ctrl),
+};
+
 /* pin banks of exynos4x12 pin-controller 0 */
 static const struct samsung_pin_bank_data exynos4x12_pin_banks0[] __initconst = {
         EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
@@ -391,7 +406,7 @@ static const struct samsung_pin_bank_data exynos4x12_pin_banks3[] __initconst =
  * Samsung pinctrl driver data for Exynos4x12 SoC. Exynos4x12 SoC includes
  * four gpio/pin-mux/pinconfig controllers.
  */
-const struct samsung_pin_ctrl exynos4x12_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl exynos4x12_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 0 data */
                 .pin_banks      = exynos4x12_pin_banks0,
@@ -427,6 +442,11 @@ const struct samsung_pin_ctrl exynos4x12_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data exynos4x12_of_data __initconst = {
+        .ctrl           = exynos4x12_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(exynos4x12_pin_ctrl),
+};
+
 /* pin banks of exynos5250 pin-controller 0 */
 static const struct samsung_pin_bank_data exynos5250_pin_banks0[] __initconst = {
         EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
@@ -487,7 +507,7 @@ static const struct samsung_pin_bank_data exynos5250_pin_banks3[] __initconst =
  * Samsung pinctrl driver data for Exynos5250 SoC. Exynos5250 SoC includes
  * four gpio/pin-mux/pinconfig controllers.
  */
-const struct samsung_pin_ctrl exynos5250_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl exynos5250_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 0 data */
                 .pin_banks      = exynos5250_pin_banks0,
@@ -523,6 +543,11 @@ const struct samsung_pin_ctrl exynos5250_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data exynos5250_of_data __initconst = {
+        .ctrl           = exynos5250_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(exynos5250_pin_ctrl),
+};
+
 /* pin banks of exynos5260 pin-controller 0 */
 static const struct samsung_pin_bank_data exynos5260_pin_banks0[] __initconst = {
         EXYNOS_PIN_BANK_EINTG(4, 0x000, "gpa0", 0x00),
@@ -567,7 +592,7 @@ static const struct samsung_pin_bank_data exynos5260_pin_banks2[] __initconst =
  * Samsung pinctrl driver data for Exynos5260 SoC. Exynos5260 SoC includes
  * three gpio/pin-mux/pinconfig controllers.
  */
-const struct samsung_pin_ctrl exynos5260_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl exynos5260_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 0 data */
                 .pin_banks      = exynos5260_pin_banks0,
@@ -587,6 +612,11 @@ const struct samsung_pin_ctrl exynos5260_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data exynos5260_of_data __initconst = {
+        .ctrl           = exynos5260_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(exynos5260_pin_ctrl),
+};
+
 /* pin banks of exynos5410 pin-controller 0 */
 static const struct samsung_pin_bank_data exynos5410_pin_banks0[] __initconst = {
         EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
@@ -657,7 +687,7 @@ static const struct samsung_pin_bank_data exynos5410_pin_banks3[] __initconst =
  * Samsung pinctrl driver data for Exynos5410 SoC. Exynos5410 SoC includes
  * four gpio/pin-mux/pinconfig controllers.
  */
-const struct samsung_pin_ctrl exynos5410_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl exynos5410_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 0 data */
                 .pin_banks      = exynos5410_pin_banks0,
@@ -690,6 +720,11 @@ const struct samsung_pin_ctrl exynos5410_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data exynos5410_of_data __initconst = {
+        .ctrl           = exynos5410_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(exynos5410_pin_ctrl),
+};
+
 /* pin banks of exynos5420 pin-controller 0 */
 static const struct samsung_pin_bank_data exynos5420_pin_banks0[] __initconst = {
         EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpy7", 0x00),
@@ -774,7 +809,7 @@ static const struct samsung_retention_data exynos5420_retention_data __initconst
  * Samsung pinctrl driver data for Exynos5420 SoC. Exynos5420 SoC includes
  * four gpio/pin-mux/pinconfig controllers.
  */
-const struct samsung_pin_ctrl exynos5420_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl exynos5420_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 0 data */
                 .pin_banks      = exynos5420_pin_banks0,
@@ -808,3 +843,8 @@ const struct samsung_pin_ctrl exynos5420_pin_ctrl[] __initconst = {
                 .retention_data = &exynos4_audio_retention_data,
         },
 };
+
+const struct samsung_pinctrl_of_match_data exynos5420_of_data __initconst = {
+        .ctrl           = exynos5420_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(exynos5420_pin_ctrl),
+};
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c b/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c
index fc8f7833bec0..71c9d1d9f345 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c
@@ -175,7 +175,7 @@ static const struct samsung_retention_data exynos5433_fsys_retention_data __init
  * Samsung pinctrl driver data for Exynos5433 SoC. Exynos5433 SoC includes
  * ten gpio/pin-mux/pinconfig controllers.
  */
-const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 0 data */
                 .pin_banks      = exynos5433_pin_banks0,
@@ -260,6 +260,11 @@ const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data exynos5433_of_data __initconst = {
+        .ctrl           = exynos5433_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(exynos5433_pin_ctrl),
+};
+
 /* pin banks of exynos7 pin-controller - ALIVE */
 static const struct samsung_pin_bank_data exynos7_pin_banks0[] __initconst = {
         EXYNOS_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00),
@@ -339,7 +344,7 @@ static const struct samsung_pin_bank_data exynos7_pin_banks9[] __initconst = {
         EXYNOS_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04),
 };
 
-const struct samsung_pin_ctrl exynos7_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl exynos7_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 0 Alive data */
                 .pin_banks      = exynos7_pin_banks0,
@@ -392,3 +397,8 @@ const struct samsung_pin_ctrl exynos7_pin_ctrl[] __initconst = {
                 .eint_gpio_init = exynos_eint_gpio_init,
         },
 };
+
+const struct samsung_pinctrl_of_match_data exynos7_of_data __initconst = {
+        .ctrl           = exynos7_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(exynos7_pin_ctrl),
+};
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
index 10187cb0e9b9..7e824e4d20f4 100644
--- a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
@@ -565,7 +565,7 @@ static const struct samsung_pin_bank_data s3c2412_pin_banks[] __initconst = {
         PIN_BANK_2BIT(13, 0x080, "gpj"),
 };
 
-const struct samsung_pin_ctrl s3c2412_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl s3c2412_pin_ctrl[] __initconst = {
         {
                 .pin_banks      = s3c2412_pin_banks,
                 .nr_banks       = ARRAY_SIZE(s3c2412_pin_banks),
@@ -573,6 +573,11 @@ const struct samsung_pin_ctrl s3c2412_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data s3c2412_of_data __initconst = {
+        .ctrl           = s3c2412_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(s3c2412_pin_ctrl),
+};
+
 static const struct samsung_pin_bank_data s3c2416_pin_banks[] __initconst = {
         PIN_BANK_A(27, 0x000, "gpa"),
         PIN_BANK_2BIT(11, 0x010, "gpb"),
@@ -587,7 +592,7 @@ static const struct samsung_pin_bank_data s3c2416_pin_banks[] __initconst = {
         PIN_BANK_2BIT(2, 0x100, "gpm"),
 };
 
-const struct samsung_pin_ctrl s3c2416_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl s3c2416_pin_ctrl[] __initconst = {
         {
                 .pin_banks      = s3c2416_pin_banks,
                 .nr_banks       = ARRAY_SIZE(s3c2416_pin_banks),
@@ -595,6 +600,11 @@ const struct samsung_pin_ctrl s3c2416_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data s3c2416_of_data __initconst = {
+        .ctrl           = s3c2416_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(s3c2416_pin_ctrl),
+};
+
 static const struct samsung_pin_bank_data s3c2440_pin_banks[] __initconst = {
         PIN_BANK_A(25, 0x000, "gpa"),
         PIN_BANK_2BIT(11, 0x010, "gpb"),
@@ -607,7 +617,7 @@ static const struct samsung_pin_bank_data s3c2440_pin_banks[] __initconst = {
         PIN_BANK_2BIT(13, 0x0d0, "gpj"),
 };
 
-const struct samsung_pin_ctrl s3c2440_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl s3c2440_pin_ctrl[] __initconst = {
         {
                 .pin_banks      = s3c2440_pin_banks,
                 .nr_banks       = ARRAY_SIZE(s3c2440_pin_banks),
@@ -615,6 +625,11 @@ const struct samsung_pin_ctrl s3c2440_pin_ctrl[] __initconst = {
         },
 };
 
+const struct samsung_pinctrl_of_match_data s3c2440_of_data __initconst = {
+        .ctrl           = s3c2440_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(s3c2440_pin_ctrl),
+};
+
 static const struct samsung_pin_bank_data s3c2450_pin_banks[] __initconst = {
         PIN_BANK_A(28, 0x000, "gpa"),
         PIN_BANK_2BIT(11, 0x010, "gpb"),
@@ -630,10 +645,15 @@ static const struct samsung_pin_bank_data s3c2450_pin_banks[] __initconst = {
         PIN_BANK_2BIT(2, 0x100, "gpm"),
 };
 
-const struct samsung_pin_ctrl s3c2450_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl s3c2450_pin_ctrl[] __initconst = {
         {
                 .pin_banks      = s3c2450_pin_banks,
                 .nr_banks       = ARRAY_SIZE(s3c2450_pin_banks),
                 .eint_wkup_init = s3c24xx_eint_init,
         },
 };
+
+const struct samsung_pinctrl_of_match_data s3c2450_of_data __initconst = {
+        .ctrl           = s3c2450_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(s3c2450_pin_ctrl),
+};
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
index 679628ac4b31..288e6567ceb1 100644
--- a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
@@ -789,7 +789,7 @@ static const struct samsung_pin_bank_data s3c64xx_pin_banks0[] __initconst = {
  * Samsung pinctrl driver data for S3C64xx SoC. S3C64xx SoC includes
  * one gpio/pin-mux/pinconfig controller.
  */
-const struct samsung_pin_ctrl s3c64xx_pin_ctrl[] __initconst = {
+static const struct samsung_pin_ctrl s3c64xx_pin_ctrl[] __initconst = {
         {
                 /* pin-controller instance 1 data */
                 .pin_banks      = s3c64xx_pin_banks0,
@@ -798,3 +798,8 @@ const struct samsung_pin_ctrl s3c64xx_pin_ctrl[] __initconst = {
                 .eint_wkup_init = s3c64xx_eint_eint0_init,
         },
 };
+
+const struct samsung_pinctrl_of_match_data s3c64xx_of_data __initconst = {
+        .ctrl           = s3c64xx_pin_ctrl,
+        .num_ctrl       = ARRAY_SIZE(s3c64xx_pin_ctrl),
+};
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index da58e4554137..336e88d7bdb9 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -942,12 +942,33 @@ static int samsung_gpiolib_register(struct platform_device *pdev,
         return 0;
 }
 
+static const struct samsung_pin_ctrl *
+samsung_pinctrl_get_soc_data_for_of_alias(struct platform_device *pdev)
+{
+        struct device_node *node = pdev->dev.of_node;
+        const struct samsung_pinctrl_of_match_data *of_data;
+        int id;
+
+        id = of_alias_get_id(node, "pinctrl");
+        if (id < 0) {
+                dev_err(&pdev->dev, "failed to get alias id\n");
+                return NULL;
+        }
+
+        of_data = of_device_get_match_data(&pdev->dev);
+        if (id >= of_data->num_ctrl) {
+                dev_err(&pdev->dev, "invalid alias id %d\n", id);
+                return NULL;
+        }
+
+        return &(of_data->ctrl[id]);
+}
+
 /* retrieve the soc specific data */
 static const struct samsung_pin_ctrl *
 samsung_pinctrl_get_soc_data(struct samsung_pinctrl_drv_data *d,
                              struct platform_device *pdev)
 {
-        int id;
         struct device_node *node = pdev->dev.of_node;
         struct device_node *np;
         const struct samsung_pin_bank_data *bdata;
@@ -957,13 +978,9 @@ samsung_pinctrl_get_soc_data(struct samsung_pinctrl_drv_data *d,
         void __iomem *virt_base[SAMSUNG_PINCTRL_NUM_RESOURCES];
         unsigned int i;
 
-        id = of_alias_get_id(node, "pinctrl");
-        if (id < 0) {
-                dev_err(&pdev->dev, "failed to get alias id\n");
+        ctrl = samsung_pinctrl_get_soc_data_for_of_alias(pdev);
+        if (!ctrl)
                 return ERR_PTR(-ENOENT);
-        }
-        ctrl = of_device_get_match_data(&pdev->dev);
-        ctrl += id;
 
         d->suspend = ctrl->suspend;
         d->resume = ctrl->resume;
@@ -1188,41 +1205,41 @@ static int __maybe_unused samsung_pinctrl_resume(struct device *dev)
 static const struct of_device_id samsung_pinctrl_dt_match[] = {
 #ifdef CONFIG_PINCTRL_EXYNOS_ARM
         { .compatible = "samsung,exynos3250-pinctrl",
-                .data = exynos3250_pin_ctrl },
+                .data = &exynos3250_of_data },
         { .compatible = "samsung,exynos4210-pinctrl",
-                .data = exynos4210_pin_ctrl },
+                .data = &exynos4210_of_data },
         { .compatible = "samsung,exynos4x12-pinctrl",
-                .data = exynos4x12_pin_ctrl },
+                .data = &exynos4x12_of_data },
         { .compatible = "samsung,exynos5250-pinctrl",
-                .data = exynos5250_pin_ctrl },
+                .data = &exynos5250_of_data },
         { .compatible = "samsung,exynos5260-pinctrl",
-                .data = exynos5260_pin_ctrl },
+                .data = &exynos5260_of_data },
         { .compatible = "samsung,exynos5410-pinctrl",
-                .data = exynos5410_pin_ctrl },
+                .data = &exynos5410_of_data },
         { .compatible = "samsung,exynos5420-pinctrl",
-                .data = exynos5420_pin_ctrl },
+                .data = &exynos5420_of_data },
         { .compatible = "samsung,s5pv210-pinctrl",
-                .data = s5pv210_pin_ctrl },
+                .data = &s5pv210_of_data },
 #endif
 #ifdef CONFIG_PINCTRL_EXYNOS_ARM64
         { .compatible = "samsung,exynos5433-pinctrl",
-                .data = exynos5433_pin_ctrl },
+                .data = &exynos5433_of_data },
         { .compatible = "samsung,exynos7-pinctrl",
-                .data = exynos7_pin_ctrl },
+                .data = &exynos7_of_data },
 #endif
 #ifdef CONFIG_PINCTRL_S3C64XX
         { .compatible = "samsung,s3c64xx-pinctrl",
-                .data = s3c64xx_pin_ctrl },
+                .data = &s3c64xx_of_data },
 #endif
 #ifdef CONFIG_PINCTRL_S3C24XX
         { .compatible = "samsung,s3c2412-pinctrl",
-                .data = s3c2412_pin_ctrl },
+                .data = &s3c2412_of_data },
         { .compatible = "samsung,s3c2416-pinctrl",
-                .data = s3c2416_pin_ctrl },
+                .data = &s3c2416_of_data },
         { .compatible = "samsung,s3c2440-pinctrl",
-                .data = s3c2440_pin_ctrl },
+                .data = &s3c2440_of_data },
         { .compatible = "samsung,s3c2450-pinctrl",
-                .data = s3c2450_pin_ctrl },
+                .data = &s3c2450_of_data },
 #endif
         {},
 };
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.h b/drivers/pinctrl/samsung/pinctrl-samsung.h
index e204f609823b..f0cda9424dfe 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.h
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.h
@@ -282,6 +282,16 @@ struct samsung_pinctrl_drv_data {
 };
 
 /**
+ * struct samsung_pinctrl_of_match_data: OF match device specific configuration data.
+ * @ctrl: array of pin controller data.
+ * @num_ctrl: size of array @ctrl.
+ */
+struct samsung_pinctrl_of_match_data {
+        const struct samsung_pin_ctrl   *ctrl;
+        unsigned int                    num_ctrl;
+};
+
+/**
  * struct samsung_pin_group: represent group of pins of a pinmux function.
  * @name: name of the pin group, used to lookup the group.
  * @pins: the pins included in this group.
@@ -309,20 +319,20 @@ struct samsung_pmx_func {
 };
 
 /* list of all exported SoC specific data */
-extern const struct samsung_pin_ctrl exynos3250_pin_ctrl[];
-extern const struct samsung_pin_ctrl exynos4210_pin_ctrl[];
-extern const struct samsung_pin_ctrl exynos4x12_pin_ctrl[];
-extern const struct samsung_pin_ctrl exynos5250_pin_ctrl[];
-extern const struct samsung_pin_ctrl exynos5260_pin_ctrl[];
-extern const struct samsung_pin_ctrl exynos5410_pin_ctrl[];
-extern const struct samsung_pin_ctrl exynos5420_pin_ctrl[];
-extern const struct samsung_pin_ctrl exynos5433_pin_ctrl[];
-extern const struct samsung_pin_ctrl exynos7_pin_ctrl[];
-extern const struct samsung_pin_ctrl s3c64xx_pin_ctrl[];
-extern const struct samsung_pin_ctrl s3c2412_pin_ctrl[];
-extern const struct samsung_pin_ctrl s3c2416_pin_ctrl[];
-extern const struct samsung_pin_ctrl s3c2440_pin_ctrl[];
-extern const struct samsung_pin_ctrl s3c2450_pin_ctrl[];
-extern const struct samsung_pin_ctrl s5pv210_pin_ctrl[];
+extern const struct samsung_pinctrl_of_match_data exynos3250_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos4210_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos4x12_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos5250_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos5260_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos5410_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos5420_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos5433_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos7_of_data;
+extern const struct samsung_pinctrl_of_match_data s3c64xx_of_data;
+extern const struct samsung_pinctrl_of_match_data s3c2412_of_data;
+extern const struct samsung_pinctrl_of_match_data s3c2416_of_data;
+extern const struct samsung_pinctrl_of_match_data s3c2440_of_data;
+extern const struct samsung_pinctrl_of_match_data s3c2450_of_data;
+extern const struct samsung_pinctrl_of_match_data s5pv210_of_data;
 
 #endif /* __PINCTRL_SAMSUNG_H */
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
index 18aeee592fdc..35951e7b89d2 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
@@ -1538,7 +1538,6 @@ static const struct sh_pfc_pin pinmux_pins[] = {
         SH_PFC_PIN_NAMED_CFG('B', 18, AVB_TD1, CFG_FLAGS),
         SH_PFC_PIN_NAMED_CFG('B', 19, AVB_RXC, CFG_FLAGS),
         SH_PFC_PIN_NAMED_CFG('C',  1, PRESETOUT#, CFG_FLAGS),
-        SH_PFC_PIN_NAMED_CFG('F',  1, CLKOUT, CFG_FLAGS),
         SH_PFC_PIN_NAMED_CFG('H', 37, MLB_REF, CFG_FLAGS),
         SH_PFC_PIN_NAMED_CFG('V',  3, QSPI1_SPCLK, CFG_FLAGS),
         SH_PFC_PIN_NAMED_CFG('V',  5, QSPI1_SSL, CFG_FLAGS),
diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c
index 6dec6ab13300..d8599736a41a 100644
--- a/drivers/platform/chrome/chromeos_laptop.c
+++ b/drivers/platform/chrome/chromeos_laptop.c
@@ -423,7 +423,7 @@ static int chromeos_laptop_probe(struct platform_device *pdev)
         return ret;
 }
 
-static const struct chromeos_laptop samsung_series_5_550 = {
+static struct chromeos_laptop samsung_series_5_550 = {
         .i2c_peripherals = {
                 /* Touchpad. */
                 { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS },
@@ -432,14 +432,14 @@ static const struct chromeos_laptop samsung_series_5_550 = {
         },
 };
 
-static const struct chromeos_laptop samsung_series_5 = {
+static struct chromeos_laptop samsung_series_5 = {
         .i2c_peripherals = {
                 /* Light Sensor. */
                 { .add = setup_tsl2583_als, I2C_ADAPTER_SMBUS },
         },
 };
 
-static const struct chromeos_laptop chromebook_pixel = {
+static struct chromeos_laptop chromebook_pixel = {
         .i2c_peripherals = {
                 /* Touch Screen. */
                 { .add = setup_atmel_1664s_ts, I2C_ADAPTER_PANEL },
@@ -450,14 +450,14 @@ static const struct chromeos_laptop chromebook_pixel = {
         },
 };
 
-static const struct chromeos_laptop hp_chromebook_14 = {
+static struct chromeos_laptop hp_chromebook_14 = {
         .i2c_peripherals = {
                 /* Touchpad. */
                 { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 },
         },
 };
 
-static const struct chromeos_laptop dell_chromebook_11 = {
+static struct chromeos_laptop dell_chromebook_11 = {
         .i2c_peripherals = {
                 /* Touchpad. */
                 { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 },
@@ -466,28 +466,28 @@ static const struct chromeos_laptop dell_chromebook_11 = {
         },
 };
 
-static const struct chromeos_laptop toshiba_cb35 = {
+static struct chromeos_laptop toshiba_cb35 = {
         .i2c_peripherals = {
                 /* Touchpad. */
                 { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 },
         },
 };
 
-static const struct chromeos_laptop acer_c7_chromebook = {
+static struct chromeos_laptop acer_c7_chromebook = {
         .i2c_peripherals = {
                 /* Touchpad. */
                 { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS },
         },
 };
 
-static const struct chromeos_laptop acer_ac700 = {
+static struct chromeos_laptop acer_ac700 = {
         .i2c_peripherals = {
                 /* Light Sensor. */
                 { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS },
         },
 };
 
-static const struct chromeos_laptop acer_c720 = {
+static struct chromeos_laptop acer_c720 = {
         .i2c_peripherals = {
                 /* Touchscreen. */
                 { .add = setup_atmel_1664s_ts, I2C_ADAPTER_DESIGNWARE_1 },
@@ -500,14 +500,14 @@ static const struct chromeos_laptop acer_c720 = {
         },
 };
 
-static const struct chromeos_laptop hp_pavilion_14_chromebook = {
+static struct chromeos_laptop hp_pavilion_14_chromebook = {
         .i2c_peripherals = {
                 /* Touchpad. */
                 { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS },
         },
 };
 
-static const struct chromeos_laptop cr48 = {
+static struct chromeos_laptop cr48 = {
         .i2c_peripherals = {
                 /* Light Sensor. */
                 { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS },
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 9a8f96465cdc..51ebc5a6053f 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -105,31 +105,45 @@ config ASUS_LAPTOP
 
           If you have an ACPI-compatible ASUS laptop, say Y or M here.
 
+#
+# The DELL_SMBIOS driver depends on ACPI_WMI and/or DCDBAS if those
+# backends are selected. The "depends" line prevents a configuration
+# where DELL_SMBIOS=y while either of those dependencies =m.
+#
 config DELL_SMBIOS
-        tristate
+        tristate "Dell SMBIOS driver"
+        depends on DCDBAS || DCDBAS=n
+        depends on ACPI_WMI || ACPI_WMI=n
+        ---help---
+        This provides support for the Dell SMBIOS calling interface.
+        If you have a Dell computer you should enable this option.
+
+        Be sure to select at least one backend for it to work properly.
 
 config DELL_SMBIOS_WMI
-        tristate "Dell SMBIOS calling interface (WMI implementation)"
+        bool "Dell SMBIOS driver WMI backend"
+        default y
         depends on ACPI_WMI
         select DELL_WMI_DESCRIPTOR
-        select DELL_SMBIOS
+        depends on DELL_SMBIOS
         ---help---
         This provides an implementation for the Dell SMBIOS calling interface
         communicated over ACPI-WMI.
 
-        If you have a Dell computer from >2007 you should say Y or M here.
+        If you have a Dell computer from >2007 you should say Y here.
         If you aren't sure and this module doesn't work for your computer
         it just won't load.
 
 config DELL_SMBIOS_SMM
-        tristate "Dell SMBIOS calling interface (SMM implementation)"
+        bool "Dell SMBIOS driver SMM backend"
+        default y
         depends on DCDBAS
-        select DELL_SMBIOS
+        depends on DELL_SMBIOS
         ---help---
         This provides an implementation for the Dell SMBIOS calling interface
         communicated over SMI/SMM.
 
-        If you have a Dell computer from <=2017 you should say Y or M here.
+        If you have a Dell computer from <=2017 you should say Y here.
         If you aren't sure and this module doesn't work for your computer
         it just won't load.
 
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index c388608ad2a3..2ba6cb795338 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -13,8 +13,9 @@ obj-$(CONFIG_MSI_LAPTOP)	+= msi-laptop.o
 obj-$(CONFIG_ACPI_CMPC)         += classmate-laptop.o
 obj-$(CONFIG_COMPAL_LAPTOP)     += compal-laptop.o
 obj-$(CONFIG_DELL_SMBIOS)       += dell-smbios.o
-obj-$(CONFIG_DELL_SMBIOS_WMI)   += dell-smbios-wmi.o
-obj-$(CONFIG_DELL_SMBIOS_SMM)   += dell-smbios-smm.o
+dell-smbios-objs                := dell-smbios-base.o
+dell-smbios-$(CONFIG_DELL_SMBIOS_WMI)   += dell-smbios-wmi.o
+dell-smbios-$(CONFIG_DELL_SMBIOS_SMM)   += dell-smbios-smm.o
 obj-$(CONFIG_DELL_LAPTOP)       += dell-laptop.o
 obj-$(CONFIG_DELL_WMI)          += dell-wmi.o
 obj-$(CONFIG_DELL_WMI_DESCRIPTOR)       += dell-wmi-descriptor.o
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 2a68f59d2228..c52c6723374b 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -127,24 +127,6 @@ static const struct dmi_system_id dell_device_table[] __initconst = {
                 },
         },
         {
-                .matches = {
-                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-                        DMI_MATCH(DMI_CHASSIS_TYPE, "30"), /*Tablet*/
-                },
-        },
-        {
-                .matches = {
-                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-                        DMI_MATCH(DMI_CHASSIS_TYPE, "31"), /*Convertible*/
-                },
-        },
-        {
-                .matches = {
-                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-                        DMI_MATCH(DMI_CHASSIS_TYPE, "32"), /*Detachable*/
-                },
-        },
-        {
                 .ident = "Dell Computer Corporation",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
@@ -1279,7 +1261,7 @@ static int kbd_get_state(struct kbd_state *state)
         struct calling_interface_buffer buffer;
         int ret;
 
-        dell_fill_request(&buffer, 0, 0, 0, 0);
+        dell_fill_request(&buffer, 0x1, 0, 0, 0);
         ret = dell_send_request(&buffer,
                                 CLASS_KBD_BACKLIGHT, SELECT_KBD_BACKLIGHT);
         if (ret)
diff --git a/drivers/platform/x86/dell-smbios.c b/drivers/platform/x86/dell-smbios-base.c
index 8541cde4cb7d..2485c80a9fdd 100644
--- a/drivers/platform/x86/dell-smbios.c
+++ b/drivers/platform/x86/dell-smbios-base.c
@@ -36,7 +36,7 @@ static DEFINE_MUTEX(smbios_mutex);
 struct smbios_device {
         struct list_head list;
         struct device *device;
-        int (*call_fn)(struct calling_interface_buffer *);
+        int (*call_fn)(struct calling_interface_buffer *arg);
 };
 
 struct smbios_call {
@@ -352,8 +352,10 @@ static void __init parse_da_table(const struct dmi_header *dm)
         struct calling_interface_structure *table =
                 container_of(dm, struct calling_interface_structure, header);
 
-        /* 4 bytes of table header, plus 7 bytes of Dell header, plus at least
-           6 bytes of entry */
+        /*
+         * 4 bytes of table header, plus 7 bytes of Dell header
+         * plus at least 6 bytes of entry
+         */
 
         if (dm->length < 17)
                 return;
@@ -554,7 +556,7 @@ static void free_group(struct platform_device *pdev)
 static int __init dell_smbios_init(void)
 {
         const struct dmi_device *valid;
-        int ret;
+        int ret, wmi, smm;
 
         valid = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, "Dell System", NULL);
         if (!valid) {
@@ -589,8 +591,24 @@ static int __init dell_smbios_init(void)
         if (ret)
                 goto fail_create_group;
 
+        /* register backends */
+        wmi = init_dell_smbios_wmi();
+        if (wmi)
+                pr_debug("Failed to initialize WMI backend: %d\n", wmi);
+        smm = init_dell_smbios_smm();
+        if (smm)
+                pr_debug("Failed to initialize SMM backend: %d\n", smm);
+        if (wmi && smm) {
+                pr_err("No SMBIOS backends available (wmi: %d, smm: %d)\n",
+                        wmi, smm);
+                goto fail_sysfs;
+        }
+
         return 0;
 
+fail_sysfs:
+        free_group(platform_device);
+
 fail_create_group:
         platform_device_del(platform_device);
 
@@ -607,6 +625,8 @@ fail_platform_driver:
 
 static void __exit dell_smbios_exit(void)
 {
+        exit_dell_smbios_wmi();
+        exit_dell_smbios_smm();
         mutex_lock(&smbios_mutex);
         if (platform_device) {
                 free_group(platform_device);
@@ -617,11 +637,12 @@ static void __exit dell_smbios_exit(void)
         mutex_unlock(&smbios_mutex);
 }
 
-subsys_initcall(dell_smbios_init);
+module_init(dell_smbios_init);
 module_exit(dell_smbios_exit);
 
 MODULE_AUTHOR("Matthew Garrett <mjg@redhat.com>");
 MODULE_AUTHOR("Gabriele Mazzotta <gabriele.mzt@gmail.com>");
 MODULE_AUTHOR("Pali Rohár <pali.rohar@gmail.com>");
+MODULE_AUTHOR("Mario Limonciello <mario.limonciello@dell.com>");
 MODULE_DESCRIPTION("Common functions for kernel modules using Dell SMBIOS");
 MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/dell-smbios-smm.c b/drivers/platform/x86/dell-smbios-smm.c
index 89f65c4651a0..e9e9da556318 100644
--- a/drivers/platform/x86/dell-smbios-smm.c
+++ b/drivers/platform/x86/dell-smbios-smm.c
@@ -58,7 +58,7 @@ static const struct dmi_system_id dell_device_table[] __initconst = {
 };
 MODULE_DEVICE_TABLE(dmi, dell_device_table);
 
-static void __init parse_da_table(const struct dmi_header *dm)
+static void parse_da_table(const struct dmi_header *dm)
 {
         struct calling_interface_structure *table =
                 container_of(dm, struct calling_interface_structure, header);
@@ -73,7 +73,7 @@ static void __init parse_da_table(const struct dmi_header *dm)
         da_command_code = table->cmdIOCode;
 }
 
-static void __init find_cmd_address(const struct dmi_header *dm, void *dummy)
+static void find_cmd_address(const struct dmi_header *dm, void *dummy)
 {
         switch (dm->type) {
         case 0xda: /* Calling interface */
@@ -128,7 +128,7 @@ static bool test_wsmt_enabled(void)
         return false;
 }
 
-static int __init dell_smbios_smm_init(void)
+int init_dell_smbios_smm(void)
 {
         int ret;
         /*
@@ -176,7 +176,7 @@ fail_platform_device_alloc:
         return ret;
 }
 
-static void __exit dell_smbios_smm_exit(void)
+void exit_dell_smbios_smm(void)
 {
         if (platform_device) {
                 dell_smbios_unregister_device(&platform_device->dev);
@@ -184,13 +184,3 @@ static void __exit dell_smbios_smm_exit(void)
                 free_page((unsigned long)buffer);
         }
 }
-
-subsys_initcall(dell_smbios_smm_init);
-module_exit(dell_smbios_smm_exit);
-
-MODULE_AUTHOR("Matthew Garrett <mjg@redhat.com>");
-MODULE_AUTHOR("Gabriele Mazzotta <gabriele.mzt@gmail.com>");
-MODULE_AUTHOR("Pali Rohár <pali.rohar@gmail.com>");
-MODULE_AUTHOR("Mario Limonciello <mario.limonciello@dell.com>");
-MODULE_DESCRIPTION("Dell SMBIOS communications over SMI");
-MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/dell-smbios-wmi.c b/drivers/platform/x86/dell-smbios-wmi.c
index 609557aa5868..fbefedb1c172 100644
--- a/drivers/platform/x86/dell-smbios-wmi.c
+++ b/drivers/platform/x86/dell-smbios-wmi.c
@@ -228,7 +228,7 @@ static const struct wmi_device_id dell_smbios_wmi_id_table[] = {
         { },
 };
 
-static void __init parse_b1_table(const struct dmi_header *dm)
+static void parse_b1_table(const struct dmi_header *dm)
 {
         struct misc_bios_flags_structure *flags =
         container_of(dm, struct misc_bios_flags_structure, header);
@@ -242,7 +242,7 @@ static void __init parse_b1_table(const struct dmi_header *dm)
                 wmi_supported = 1;
 }
 
-static void __init find_b1(const struct dmi_header *dm, void *dummy)
+static void find_b1(const struct dmi_header *dm, void *dummy)
 {
         switch (dm->type) {
         case 0xb1: /* misc bios flags */
@@ -261,7 +261,7 @@ static struct wmi_driver dell_smbios_wmi_driver = {
         .filter_callback = dell_smbios_wmi_filter,
 };
 
-static int __init init_dell_smbios_wmi(void)
+int init_dell_smbios_wmi(void)
 {
         dmi_walk(find_b1, NULL);
 
@@ -271,15 +271,9 @@ static int __init init_dell_smbios_wmi(void)
         return wmi_driver_register(&dell_smbios_wmi_driver);
 }
 
-static void __exit exit_dell_smbios_wmi(void)
+void exit_dell_smbios_wmi(void)
 {
         wmi_driver_unregister(&dell_smbios_wmi_driver);
 }
 
-module_init(init_dell_smbios_wmi);
-module_exit(exit_dell_smbios_wmi);
-
 MODULE_ALIAS("wmi:" DELL_WMI_SMBIOS_GUID);
-MODULE_AUTHOR("Mario Limonciello <mario.limonciello@dell.com>");
-MODULE_DESCRIPTION("Dell SMBIOS communications over WMI");
-MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/dell-smbios.h b/drivers/platform/x86/dell-smbios.h
index 138d478d9adc..d8adaf959740 100644
--- a/drivers/platform/x86/dell-smbios.h
+++ b/drivers/platform/x86/dell-smbios.h
@@ -75,4 +75,29 @@ int dell_laptop_register_notifier(struct notifier_block *nb);
 int dell_laptop_unregister_notifier(struct notifier_block *nb);
 void dell_laptop_call_notifier(unsigned long action, void *data);
 
-#endif
+/* for the supported backends */
+#ifdef CONFIG_DELL_SMBIOS_WMI
+int init_dell_smbios_wmi(void);
+void exit_dell_smbios_wmi(void);
+#else /* CONFIG_DELL_SMBIOS_WMI */
+static inline int init_dell_smbios_wmi(void)
+{
+        return -ENODEV;
+}
+static inline void exit_dell_smbios_wmi(void)
+{}
+#endif /* CONFIG_DELL_SMBIOS_WMI */
+
+#ifdef CONFIG_DELL_SMBIOS_SMM
+int init_dell_smbios_smm(void);
+void exit_dell_smbios_smm(void);
+#else /* CONFIG_DELL_SMBIOS_SMM */
+static inline int init_dell_smbios_smm(void)
+{
+        return -ENODEV;
+}
+static inline void exit_dell_smbios_smm(void)
+{}
+#endif /* CONFIG_DELL_SMBIOS_SMM */
+
+#endif /* _DELL_SMBIOS_H_ */
diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index 2c9927430d85..8d102195a392 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -714,7 +714,7 @@ static int __init dell_wmi_init(void)
 
         return wmi_driver_register(&dell_wmi_driver);
 }
-module_init(dell_wmi_init);
+late_initcall(dell_wmi_init);
 
 static void __exit dell_wmi_exit(void)
 {
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 5b6f18b18801..535199c9e6bc 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -113,7 +113,7 @@ MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth.");
 /*
  * ACPI Helpers
  */
-#define IDEAPAD_EC_TIMEOUT (100) /* in ms */
+#define IDEAPAD_EC_TIMEOUT (200) /* in ms */
 
 static int read_method_int(acpi_handle handle, const char *method, int *val)
 {
diff --git a/drivers/platform/x86/intel-hid.c b/drivers/platform/x86/intel-hid.c
index d1a01311c1a2..5e3df194723e 100644
--- a/drivers/platform/x86/intel-hid.c
+++ b/drivers/platform/x86/intel-hid.c
@@ -376,6 +376,7 @@ static int intel_hid_remove(struct platform_device *device)
 {
         acpi_handle handle = ACPI_HANDLE(&device->dev);
 
+        device_init_wakeup(&device->dev, false);
         acpi_remove_notify_handler(handle, ACPI_DEVICE_NOTIFY, notify_handler);
         intel_hid_set_enable(&device->dev, false);
         intel_button_array_enable(&device->dev, false);
diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c
index b703d6f5b099..c13780b8dabb 100644
--- a/drivers/platform/x86/intel-vbtn.c
+++ b/drivers/platform/x86/intel-vbtn.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/acpi.h>
+#include <linux/dmi.h>
 #include <linux/input.h>
 #include <linux/input/sparse-keymap.h>
 #include <linux/kernel.h>
@@ -97,9 +98,35 @@ out_unknown:
         dev_dbg(&device->dev, "unknown event index 0x%x\n", event);
 }
 
-static int intel_vbtn_probe(struct platform_device *device)
+static void detect_tablet_mode(struct platform_device *device)
 {
+        const char *chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
+        struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);
+        acpi_handle handle = ACPI_HANDLE(&device->dev);
         struct acpi_buffer vgbs_output = { ACPI_ALLOCATE_BUFFER, NULL };
+        union acpi_object *obj;
+        acpi_status status;
+        int m;
+
+        if (!(chassis_type && strcmp(chassis_type, "31") == 0))
+                goto out;
+
+        status = acpi_evaluate_object(handle, "VGBS", NULL, &vgbs_output);
+        if (ACPI_FAILURE(status))
+                goto out;
+
+        obj = vgbs_output.pointer;
+        if (!(obj && obj->type == ACPI_TYPE_INTEGER))
+                goto out;
+
+        m = !(obj->integer.value & TABLET_MODE_FLAG);
+        input_report_switch(priv->input_dev, SW_TABLET_MODE, m);
+out:
+        kfree(vgbs_output.pointer);
+}
+
+static int intel_vbtn_probe(struct platform_device *device)
+{
         acpi_handle handle = ACPI_HANDLE(&device->dev);
         struct intel_vbtn_priv *priv;
         acpi_status status;
@@ -122,22 +149,7 @@ static int intel_vbtn_probe(struct platform_device *device)
                 return err;
         }
 
-        /*
-         * VGBS being present and returning something means we have
-         * a tablet mode switch.
-         */
-        status = acpi_evaluate_object(handle, "VGBS", NULL, &vgbs_output);
-        if (ACPI_SUCCESS(status)) {
-                union acpi_object *obj = vgbs_output.pointer;
-
-                if (obj && obj->type == ACPI_TYPE_INTEGER) {
-                        int m = !(obj->integer.value & TABLET_MODE_FLAG);
-
-                        input_report_switch(priv->input_dev, SW_TABLET_MODE, m);
-                }
-        }
-
-        kfree(vgbs_output.pointer);
+        detect_tablet_mode(device);
 
         status = acpi_install_notify_handler(handle,
                                              ACPI_DEVICE_NOTIFY,
@@ -154,6 +166,7 @@ static int intel_vbtn_remove(struct platform_device *device)
 {
         acpi_handle handle = ACPI_HANDLE(&device->dev);
 
+        device_init_wakeup(&device->dev, false);
         acpi_remove_notify_handler(handle, ACPI_DEVICE_NOTIFY, notify_handler);
 
         /*
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index daa68acbc900..8796211ef24a 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -933,7 +933,7 @@ static int wmi_dev_probe(struct device *dev)
                         goto probe_failure;
                 }
 
-                buf = kmalloc(strlen(wdriver->driver.name) + 4, GFP_KERNEL);
+                buf = kmalloc(strlen(wdriver->driver.name) + 5, GFP_KERNEL);
                 if (!buf) {
                         ret = -ENOMEM;
                         goto probe_string_failure;
@@ -945,7 +945,7 @@ static int wmi_dev_probe(struct device *dev)
                 wblock->char_dev.mode = 0444;
                 ret = misc_register(&wblock->char_dev);
                 if (ret) {
-                        dev_warn(dev, "failed to register char dev: %d", ret);
+                        dev_warn(dev, "failed to register char dev: %d\n", ret);
                         ret = -ENOMEM;
                         goto probe_misc_failure;
                 }
@@ -1048,7 +1048,7 @@ static int wmi_create_device(struct device *wmi_bus_dev,
 
         if (result) {
                 dev_warn(wmi_bus_dev,
-                         "%s data block query control method not found",
+                         "%s data block query control method not found\n",
                          method);
                 return result;
         }
@@ -1198,7 +1198,7 @@ static int parse_wdg(struct device *wmi_bus_dev, struct acpi_device *device)
 
                 retval = device_add(&wblock->dev.dev);
                 if (retval) {
-                        dev_err(wmi_bus_dev, "failed to register %pULL\n",
+                        dev_err(wmi_bus_dev, "failed to register %pUL\n",
                                 wblock->gblock.guid);
                         if (debug_event)
                                 wmi_method_enable(wblock, 0);
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index dd4708c58480..1fc0c0811da4 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -4310,7 +4310,7 @@ static int _regulator_resume_early(struct device *dev, void *data)
 
         rstate = regulator_get_suspend_state(rdev, *state);
         if (rstate == NULL)
-                return -EINVAL;
+                return 0;
 
         mutex_lock(&rdev->mutex);
 
diff --git a/drivers/regulator/stm32-vrefbuf.c b/drivers/regulator/stm32-vrefbuf.c
index 72c8b3e1022b..e0a9c445ed67 100644
--- a/drivers/regulator/stm32-vrefbuf.c
+++ b/drivers/regulator/stm32-vrefbuf.c
@@ -51,7 +51,7 @@ static int stm32_vrefbuf_enable(struct regulator_dev *rdev)
          * arbitrary timeout.
          */
         ret = readl_poll_timeout(priv->base + STM32_VREFBUF_CSR, val,
-                                 !(val & STM32_VRR), 650, 10000);
+                                 val & STM32_VRR, 650, 10000);
         if (ret) {
                 dev_err(&rdev->dev, "stm32 vrefbuf timed out!\n");
                 val = readl_relaxed(priv->base + STM32_VREFBUF_CSR);
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index a7c15f0085e2..ecef8e73d40b 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -2581,8 +2581,6 @@ int dasd_cancel_req(struct dasd_ccw_req *cqr)
         case DASD_CQR_QUEUED:
                 /* request was not started - just set to cleared */
                 cqr->status = DASD_CQR_CLEARED;
-                if (cqr->callback_data == DASD_SLEEPON_START_TAG)
-                        cqr->callback_data = DASD_SLEEPON_END_TAG;
                 break;
         case DASD_CQR_IN_IO:
                 /* request in IO - terminate IO and release again */
@@ -3902,9 +3900,12 @@ static int dasd_generic_requeue_all_requests(struct dasd_device *device)
                 wait_event(dasd_flush_wq,
                            (cqr->status != DASD_CQR_CLEAR_PENDING));
 
-                /* mark sleepon requests as ended */
-                if (cqr->callback_data == DASD_SLEEPON_START_TAG)
-                        cqr->callback_data = DASD_SLEEPON_END_TAG;
+                /*
+                 * requeue requests to blocklayer will only work
+                 * for block device requests
+                 */
+                if (_dasd_requeue_request(cqr))
+                        continue;
 
                 /* remove requests from device and block queue */
                 list_del_init(&cqr->devlist);
@@ -3917,13 +3918,6 @@ static int dasd_generic_requeue_all_requests(struct dasd_device *device)
                         cqr = refers;
                 }
 
-                /*
-                 * requeue requests to blocklayer will only work
-                 * for block device requests
-                 */
-                if (_dasd_requeue_request(cqr))
-                        continue;
-
                 if (cqr->block)
                         list_del_init(&cqr->blocklist);
                 cqr->block->base->discipline->free_cp(
@@ -3940,8 +3934,7 @@ static int dasd_generic_requeue_all_requests(struct dasd_device *device)
                 list_splice_tail(&requeue_queue, &device->ccw_queue);
                 spin_unlock_irq(get_ccwdev_lock(device->cdev));
         }
-        /* wake up generic waitqueue for eventually ended sleepon requests */
-        wake_up(&generic_waitq);
+        dasd_schedule_device_bh(device);
         return rc;
 }
 
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 1319122e9d12..9169af7dbb43 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -795,6 +795,7 @@ ccw_device_online_timeout(struct ccw_device *cdev, enum dev_event dev_event)
 
         ccw_device_set_timeout(cdev, 0);
         cdev->private->iretry = 255;
+        cdev->private->async_kill_io_rc = -ETIMEDOUT;
         ret = ccw_device_cancel_halt_clear(cdev);
         if (ret == -EBUSY) {
                 ccw_device_set_timeout(cdev, 3*HZ);
@@ -871,7 +872,7 @@ ccw_device_killing_irq(struct ccw_device *cdev, enum dev_event dev_event)
         /* OK, i/o is dead now. Call interrupt handler. */
         if (cdev->handler)
                 cdev->handler(cdev, cdev->private->intparm,
-                              ERR_PTR(-EIO));
+                              ERR_PTR(cdev->private->async_kill_io_rc));
 }
 
 static void
@@ -888,14 +889,16 @@ ccw_device_killing_timeout(struct ccw_device *cdev, enum dev_event dev_event)
         ccw_device_online_verify(cdev, 0);
         if (cdev->handler)
                 cdev->handler(cdev, cdev->private->intparm,
-                              ERR_PTR(-EIO));
+                              ERR_PTR(cdev->private->async_kill_io_rc));
 }
 
 void ccw_device_kill_io(struct ccw_device *cdev)
 {
         int ret;
 
+        ccw_device_set_timeout(cdev, 0);
         cdev->private->iretry = 255;
+        cdev->private->async_kill_io_rc = -EIO;
         ret = ccw_device_cancel_halt_clear(cdev);
         if (ret == -EBUSY) {
                 ccw_device_set_timeout(cdev, 3*HZ);
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index 1caf6a398760..75ce12a24dc2 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -159,7 +159,7 @@ int ccw_device_clear(struct ccw_device *cdev, unsigned long intparm)
 }
 
 /**
- * ccw_device_start_key() - start a s390 channel program with key
+ * ccw_device_start_timeout_key() - start a s390 channel program with timeout and key
  * @cdev: target ccw device
  * @cpa: logical start address of channel program
  * @intparm: user specific interruption parameter; will be presented back to
@@ -170,10 +170,15 @@ int ccw_device_clear(struct ccw_device *cdev, unsigned long intparm)
  * @key: storage key to be used for the I/O
  * @flags: additional flags; defines the action to be performed for I/O
  *         processing.
+ * @expires: timeout value in jiffies
  *
  * Start a S/390 channel program. When the interrupt arrives, the
  * IRQ handler is called, either immediately, delayed (dev-end missing,
  * or sense required) or never (no IRQ handler registered).
+ * This function notifies the device driver if the channel program has not
+ * completed during the time specified by @expires. If a timeout occurs, the
+ * channel program is terminated via xsch, hsch or csch, and the device's
+ * interrupt handler will be called with an irb containing ERR_PTR(-%ETIMEDOUT).
  * Returns:
  *  %0, if the operation was successful;
  *  -%EBUSY, if the device is busy, or status pending;
@@ -182,9 +187,9 @@ int ccw_device_clear(struct ccw_device *cdev, unsigned long intparm)
  * Context:
  *  Interrupts disabled, ccw device lock held
  */
-int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
-                         unsigned long intparm, __u8 lpm, __u8 key,
-                         unsigned long flags)
+int ccw_device_start_timeout_key(struct ccw_device *cdev, struct ccw1 *cpa,
+                                 unsigned long intparm, __u8 lpm, __u8 key,
+                                 unsigned long flags, int expires)
 {
         struct subchannel *sch;
         int ret;
@@ -224,6 +229,8 @@ int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
         switch (ret) {
         case 0:
                 cdev->private->intparm = intparm;
+                if (expires)
+                        ccw_device_set_timeout(cdev, expires);
                 break;
         case -EACCES:
         case -ENODEV:
@@ -234,7 +241,7 @@ int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
 }
 
 /**
- * ccw_device_start_timeout_key() - start a s390 channel program with timeout and key
+ * ccw_device_start_key() - start a s390 channel program with key
  * @cdev: target ccw device
  * @cpa: logical start address of channel program
  * @intparm: user specific interruption parameter; will be presented back to
@@ -245,15 +252,10 @@ int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
  * @key: storage key to be used for the I/O
  * @flags: additional flags; defines the action to be performed for I/O
  *         processing.
- * @expires: timeout value in jiffies
  *
  * Start a S/390 channel program. When the interrupt arrives, the
  * IRQ handler is called, either immediately, delayed (dev-end missing,
  * or sense required) or never (no IRQ handler registered).
- * This function notifies the device driver if the channel program has not
- * completed during the time specified by @expires. If a timeout occurs, the
- * channel program is terminated via xsch, hsch or csch, and the device's
- * interrupt handler will be called with an irb containing ERR_PTR(-%ETIMEDOUT).
  * Returns:
  *  %0, if the operation was successful;
  *  -%EBUSY, if the device is busy, or status pending;
@@ -262,19 +264,12 @@ int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
  * Context:
  *  Interrupts disabled, ccw device lock held
  */
-int ccw_device_start_timeout_key(struct ccw_device *cdev, struct ccw1 *cpa,
-                                 unsigned long intparm, __u8 lpm, __u8 key,
-                                 unsigned long flags, int expires)
+int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
+                         unsigned long intparm, __u8 lpm, __u8 key,
+                         unsigned long flags)
 {
-        int ret;
-
-        if (!cdev)
-                return -ENODEV;
-        ccw_device_set_timeout(cdev, expires);
-        ret = ccw_device_start_key(cdev, cpa, intparm, lpm, key, flags);
-        if (ret != 0)
-                ccw_device_set_timeout(cdev, 0);
-        return ret;
+        return ccw_device_start_timeout_key(cdev, cpa, intparm, lpm, key,
+                                            flags, 0);
 }
 
 /**
@@ -489,18 +484,20 @@ void ccw_device_get_id(struct ccw_device *cdev, struct ccw_dev_id *dev_id)
 EXPORT_SYMBOL(ccw_device_get_id);
 
 /**
- * ccw_device_tm_start_key() - perform start function
+ * ccw_device_tm_start_timeout_key() - perform start function
  * @cdev: ccw device on which to perform the start function
  * @tcw: transport-command word to be started
  * @intparm: user defined parameter to be passed to the interrupt handler
  * @lpm: mask of paths to use
  * @key: storage key to use for storage access
+ * @expires: time span in jiffies after which to abort request
  *
  * Start the tcw on the given ccw device. Return zero on success, non-zero
  * otherwise.
  */
-int ccw_device_tm_start_key(struct ccw_device *cdev, struct tcw *tcw,
-                            unsigned long intparm, u8 lpm, u8 key)
+int ccw_device_tm_start_timeout_key(struct ccw_device *cdev, struct tcw *tcw,
+                                    unsigned long intparm, u8 lpm, u8 key,
+                                    int expires)
 {
         struct subchannel *sch;
         int rc;
@@ -527,37 +524,32 @@ int ccw_device_tm_start_key(struct ccw_device *cdev, struct tcw *tcw,
                         return -EACCES;
         }
         rc = cio_tm_start_key(sch, tcw, lpm, key);
-        if (rc == 0)
+        if (rc == 0) {
                 cdev->private->intparm = intparm;
+                if (expires)
+                        ccw_device_set_timeout(cdev, expires);
+        }
         return rc;
 }
-EXPORT_SYMBOL(ccw_device_tm_start_key);
+EXPORT_SYMBOL(ccw_device_tm_start_timeout_key);
 
 /**
- * ccw_device_tm_start_timeout_key() - perform start function
+ * ccw_device_tm_start_key() - perform start function
  * @cdev: ccw device on which to perform the start function
  * @tcw: transport-command word to be started
  * @intparm: user defined parameter to be passed to the interrupt handler
  * @lpm: mask of paths to use
  * @key: storage key to use for storage access
- * @expires: time span in jiffies after which to abort request
  *
  * Start the tcw on the given ccw device. Return zero on success, non-zero
  * otherwise.
  */
-int ccw_device_tm_start_timeout_key(struct ccw_device *cdev, struct tcw *tcw,
-                                    unsigned long intparm, u8 lpm, u8 key,
-                                    int expires)
+int ccw_device_tm_start_key(struct ccw_device *cdev, struct tcw *tcw,
+                            unsigned long intparm, u8 lpm, u8 key)
 {
-        int ret;
-
-        ccw_device_set_timeout(cdev, expires);
-        ret = ccw_device_tm_start_key(cdev, tcw, intparm, lpm, key);
-        if (ret != 0)
-                ccw_device_set_timeout(cdev, 0);
-        return ret;
+        return ccw_device_tm_start_timeout_key(cdev, tcw, intparm, lpm, key, 0);
 }
-EXPORT_SYMBOL(ccw_device_tm_start_timeout_key);
+EXPORT_SYMBOL(ccw_device_tm_start_key);
 
 /**
  * ccw_device_tm_start() - perform start function
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index af571d8d6925..90e4e3a7841b 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -157,6 +157,7 @@ struct ccw_device_private {
         unsigned long intparm;  /* user interruption parameter */
         struct qdio_irq *qdio_data;
         struct irb irb;         /* device status */
+        int async_kill_io_rc;
         struct senseid senseid; /* SenseID info */
         struct pgid pgid[8];    /* path group IDs per chpid*/
         struct ccw1 iccws[2];   /* ccws for SNID/SID/SPGID commands */
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index ca72f3311004..3653bea38470 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -527,8 +527,7 @@ static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue)
             queue == card->qdio.no_in_queues - 1;
 }
 
-
-static int qeth_issue_next_read(struct qeth_card *card)
+static int __qeth_issue_next_read(struct qeth_card *card)
 {
         int rc;
         struct qeth_cmd_buffer *iob;
@@ -559,6 +558,17 @@ static int qeth_issue_next_read(struct qeth_card *card)
         return rc;
 }
 
+static int qeth_issue_next_read(struct qeth_card *card)
+{
+        int ret;
+
+        spin_lock_irq(get_ccwdev_lock(CARD_RDEV(card)));
+        ret = __qeth_issue_next_read(card);
+        spin_unlock_irq(get_ccwdev_lock(CARD_RDEV(card)));
+
+        return ret;
+}
+
 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
 {
         struct qeth_reply *reply;
@@ -960,7 +970,7 @@ void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
         spin_lock_irqsave(&card->thread_mask_lock, flags);
         card->thread_running_mask &= ~thread;
         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
-        wake_up(&card->wait_q);
+        wake_up_all(&card->wait_q);
 }
 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
 
@@ -1164,6 +1174,7 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
                 }
                 rc = qeth_get_problem(cdev, irb);
                 if (rc) {
+                        card->read_or_write_problem = 1;
                         qeth_clear_ipacmd_list(card);
                         qeth_schedule_recovery(card);
                         goto out;
@@ -1182,7 +1193,7 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
                 return;
         if (channel == &card->read &&
             channel->state == CH_STATE_UP)
-                qeth_issue_next_read(card);
+                __qeth_issue_next_read(card);
 
         iob = channel->iob;
         index = channel->buf_no;
@@ -2134,24 +2145,25 @@ int qeth_send_control_data(struct qeth_card *card, int len,
         }
         reply->callback = reply_cb;
         reply->param = reply_param;
-        if (card->state == CARD_STATE_DOWN)
-                reply->seqno = QETH_IDX_COMMAND_SEQNO;
-        else
-                reply->seqno = card->seqno.ipa++;
+
         init_waitqueue_head(&reply->wait_q);
-        spin_lock_irqsave(&card->lock, flags);
-        list_add_tail(&reply->list, &card->cmd_waiter_list);
-        spin_unlock_irqrestore(&card->lock, flags);
 
         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
-        qeth_prepare_control_data(card, len, iob);
 
         if (IS_IPA(iob->data)) {
                 cmd = __ipa_cmd(iob);
+                cmd->hdr.seqno = card->seqno.ipa++;
+                reply->seqno = cmd->hdr.seqno;
                 event_timeout = QETH_IPA_TIMEOUT;
         } else {
+                reply->seqno = QETH_IDX_COMMAND_SEQNO;
                 event_timeout = QETH_TIMEOUT;
         }
+        qeth_prepare_control_data(card, len, iob);
+
+        spin_lock_irqsave(&card->lock, flags);
+        list_add_tail(&reply->list, &card->cmd_waiter_list);
+        spin_unlock_irqrestore(&card->lock, flags);
 
         timeout = jiffies + event_timeout;
 
@@ -2933,7 +2945,7 @@ static void qeth_fill_ipacmd_header(struct qeth_card *card,
         memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
         cmd->hdr.command = command;
         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
-        cmd->hdr.seqno = card->seqno.ipa;
+        /* cmd->hdr.seqno is set by qeth_send_control_data() */
         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
         if (card->options.layer2)
@@ -3898,10 +3910,12 @@ EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags);
 int qeth_get_elements_no(struct qeth_card *card,
                      struct sk_buff *skb, int extra_elems, int data_offset)
 {
-        int elements = qeth_get_elements_for_range(
-                                (addr_t)skb->data + data_offset,
-                                (addr_t)skb->data + skb_headlen(skb)) +
-                        qeth_get_elements_for_frags(skb);
+        addr_t end = (addr_t)skb->data + skb_headlen(skb);
+        int elements = qeth_get_elements_for_frags(skb);
+        addr_t start = (addr_t)skb->data + data_offset;
+
+        if (start != end)
+                elements += qeth_get_elements_for_range(start, end);
 
         if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
                 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
@@ -5084,8 +5098,6 @@ static void qeth_core_free_card(struct qeth_card *card)
         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
         qeth_clean_channel(&card->read);
         qeth_clean_channel(&card->write);
-        if (card->dev)
-                free_netdev(card->dev);
         qeth_free_qdio_buffers(card);
         unregister_service_level(&card->qeth_service_level);
         kfree(card);
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 7f236440483f..5ef4c978ad19 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -915,8 +915,8 @@ static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
                 qeth_l2_set_offline(cgdev);
 
         if (card->dev) {
-                netif_napi_del(&card->napi);
                 unregister_netdev(card->dev);
+                free_netdev(card->dev);
                 card->dev = NULL;
         }
         return;
diff --git a/drivers/s390/net/qeth_l3.h b/drivers/s390/net/qeth_l3.h
index bdd45f4dcace..498fe9af2cdb 100644
--- a/drivers/s390/net/qeth_l3.h
+++ b/drivers/s390/net/qeth_l3.h
@@ -40,8 +40,40 @@ struct qeth_ipaddr {
                         unsigned int pfxlen;
                 } a6;
         } u;
-
 };
+
+static inline bool qeth_l3_addr_match_ip(struct qeth_ipaddr *a1,
+                                         struct qeth_ipaddr *a2)
+{
+        if (a1->proto != a2->proto)
+                return false;
+        if (a1->proto == QETH_PROT_IPV6)
+                return ipv6_addr_equal(&a1->u.a6.addr, &a2->u.a6.addr);
+        return a1->u.a4.addr == a2->u.a4.addr;
+}
+
+static inline bool qeth_l3_addr_match_all(struct qeth_ipaddr *a1,
+                                          struct qeth_ipaddr *a2)
+{
+        /* Assumes that the pair was obtained via qeth_l3_addr_find_by_ip(),
+         * so 'proto' and 'addr' match for sure.
+         *
+         * For ucast:
+         * -    'mac' is always 0.
+         * -    'mask'/'pfxlen' for RXIP/VIPA is always 0. For NORMAL, matching
+         *      values are required to avoid mixups in takeover eligibility.
+         *
+         * For mcast,
+         * -    'mac' is mapped from the IP, and thus always matches.
+         * -    'mask'/'pfxlen' is always 0.
+         */
+        if (a1->type != a2->type)
+                return false;
+        if (a1->proto == QETH_PROT_IPV6)
+                return a1->u.a6.pfxlen == a2->u.a6.pfxlen;
+        return a1->u.a4.mask == a2->u.a4.mask;
+}
+
 static inline  u64 qeth_l3_ipaddr_hash(struct qeth_ipaddr *addr)
 {
         u64  ret = 0;
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index b0c888e86cd4..b6b12220da71 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -67,6 +67,24 @@ void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
                 qeth_l3_ipaddr6_to_string(addr, buf);
 }
 
+static struct qeth_ipaddr *qeth_l3_find_addr_by_ip(struct qeth_card *card,
+                                                   struct qeth_ipaddr *query)
+{
+        u64 key = qeth_l3_ipaddr_hash(query);
+        struct qeth_ipaddr *addr;
+
+        if (query->is_multicast) {
+                hash_for_each_possible(card->ip_mc_htable, addr, hnode, key)
+                        if (qeth_l3_addr_match_ip(addr, query))
+                                return addr;
+        } else {
+                hash_for_each_possible(card->ip_htable,  addr, hnode, key)
+                        if (qeth_l3_addr_match_ip(addr, query))
+                                return addr;
+        }
+        return NULL;
+}
+
 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
 {
         int i, j;
@@ -120,34 +138,6 @@ static bool qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
         return rc;
 }
 
-inline int
-qeth_l3_ipaddrs_is_equal(struct qeth_ipaddr *addr1, struct qeth_ipaddr *addr2)
-{
-        return addr1->proto == addr2->proto &&
-               !memcmp(&addr1->u, &addr2->u, sizeof(addr1->u)) &&
-               ether_addr_equal_64bits(addr1->mac, addr2->mac);
-}
-
-static struct qeth_ipaddr *
-qeth_l3_ip_from_hash(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
-{
-        struct qeth_ipaddr *addr;
-
-        if (tmp_addr->is_multicast) {
-                hash_for_each_possible(card->ip_mc_htable,  addr,
-                                hnode, qeth_l3_ipaddr_hash(tmp_addr))
-                        if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr))
-                                return addr;
-        } else {
-                hash_for_each_possible(card->ip_htable,  addr,
-                                hnode, qeth_l3_ipaddr_hash(tmp_addr))
-                        if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr))
-                                return addr;
-        }
-
-        return NULL;
-}
-
 int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
 {
         int rc = 0;
@@ -162,23 +152,18 @@ int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
                 QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
         }
 
-        addr = qeth_l3_ip_from_hash(card, tmp_addr);
-        if (!addr)
+        addr = qeth_l3_find_addr_by_ip(card, tmp_addr);
+        if (!addr || !qeth_l3_addr_match_all(addr, tmp_addr))
                 return -ENOENT;
 
         addr->ref_counter--;
-        if (addr->ref_counter > 0 && (addr->type == QETH_IP_TYPE_NORMAL ||
-                                      addr->type == QETH_IP_TYPE_RXIP))
+        if (addr->type == QETH_IP_TYPE_NORMAL && addr->ref_counter > 0)
                 return rc;
         if (addr->in_progress)
                 return -EINPROGRESS;
 
-        if (!qeth_card_hw_is_reachable(card)) {
-                addr->disp_flag = QETH_DISP_ADDR_DELETE;
-                return 0;
-        }
-
-        rc = qeth_l3_deregister_addr_entry(card, addr);
+        if (qeth_card_hw_is_reachable(card))
+                rc = qeth_l3_deregister_addr_entry(card, addr);
 
         hash_del(&addr->hnode);
         kfree(addr);
@@ -190,6 +175,7 @@ int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
 {
         int rc = 0;
         struct qeth_ipaddr *addr;
+        char buf[40];
 
         QETH_CARD_TEXT(card, 4, "addip");
 
@@ -200,8 +186,20 @@ int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
                 QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
         }
 
-        addr = qeth_l3_ip_from_hash(card, tmp_addr);
-        if (!addr) {
+        addr = qeth_l3_find_addr_by_ip(card, tmp_addr);
+        if (addr) {
+                if (tmp_addr->type != QETH_IP_TYPE_NORMAL)
+                        return -EADDRINUSE;
+                if (qeth_l3_addr_match_all(addr, tmp_addr)) {
+                        addr->ref_counter++;
+                        return 0;
+                }
+                qeth_l3_ipaddr_to_string(tmp_addr->proto, (u8 *)&tmp_addr->u,
+                                         buf);
+                dev_warn(&card->gdev->dev,
+                         "Registering IP address %s failed\n", buf);
+                return -EADDRINUSE;
+        } else {
                 addr = qeth_l3_get_addr_buffer(tmp_addr->proto);
                 if (!addr)
                         return -ENOMEM;
@@ -241,19 +239,15 @@ int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
                                 (rc == IPA_RC_LAN_OFFLINE)) {
                         addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
                         if (addr->ref_counter < 1) {
-                                qeth_l3_delete_ip(card, addr);
+                                qeth_l3_deregister_addr_entry(card, addr);
+                                hash_del(&addr->hnode);
                                 kfree(addr);
                         }
                 } else {
                         hash_del(&addr->hnode);
                         kfree(addr);
                 }
-        } else {
-                if (addr->type == QETH_IP_TYPE_NORMAL ||
-                    addr->type == QETH_IP_TYPE_RXIP)
-                        addr->ref_counter++;
         }
-
         return rc;
 }
 
@@ -321,11 +315,7 @@ static void qeth_l3_recover_ip(struct qeth_card *card)
         spin_lock_bh(&card->ip_lock);
 
         hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
-                if (addr->disp_flag == QETH_DISP_ADDR_DELETE) {
-                        qeth_l3_deregister_addr_entry(card, addr);
-                        hash_del(&addr->hnode);
-                        kfree(addr);
-                } else if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
+                if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
                         if (addr->proto == QETH_PROT_IPV4) {
                                 addr->in_progress = 1;
                                 spin_unlock_bh(&card->ip_lock);
@@ -643,12 +633,7 @@ int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
                 return -ENOMEM;
 
         spin_lock_bh(&card->ip_lock);
-
-        if (qeth_l3_ip_from_hash(card, ipaddr))
-                rc = -EEXIST;
-        else
-                rc = qeth_l3_add_ip(card, ipaddr);
-
+        rc = qeth_l3_add_ip(card, ipaddr);
         spin_unlock_bh(&card->ip_lock);
 
         kfree(ipaddr);
@@ -713,12 +698,7 @@ int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
                 return -ENOMEM;
 
         spin_lock_bh(&card->ip_lock);
-
-        if (qeth_l3_ip_from_hash(card, ipaddr))
-                rc = -EEXIST;
-        else
-                rc = qeth_l3_add_ip(card, ipaddr);
-
+        rc = qeth_l3_add_ip(card, ipaddr);
         spin_unlock_bh(&card->ip_lock);
 
         kfree(ipaddr);
@@ -1239,8 +1219,9 @@ qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev)
                 tmp->u.a4.addr = be32_to_cpu(im4->multiaddr);
                 tmp->is_multicast = 1;
 
-                ipm = qeth_l3_ip_from_hash(card, tmp);
+                ipm = qeth_l3_find_addr_by_ip(card, tmp);
                 if (ipm) {
+                        /* for mcast, by-IP match means full match */
                         ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
                 } else {
                         ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
@@ -1319,8 +1300,9 @@ static void qeth_l3_add_mc6_to_hash(struct qeth_card *card,
                        sizeof(struct in6_addr));
                 tmp->is_multicast = 1;
 
-                ipm = qeth_l3_ip_from_hash(card, tmp);
+                ipm = qeth_l3_find_addr_by_ip(card, tmp);
                 if (ipm) {
+                        /* for mcast, by-IP match means full match */
                         ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
                         continue;
                 }
@@ -2450,11 +2432,12 @@ static void qeth_tso_fill_header(struct qeth_card *card,
 static int qeth_l3_get_elements_no_tso(struct qeth_card *card,
                         struct sk_buff *skb, int extra_elems)
 {
-        addr_t tcpdptr = (addr_t)tcp_hdr(skb) + tcp_hdrlen(skb);
-        int elements = qeth_get_elements_for_range(
-                                tcpdptr,
-                                (addr_t)skb->data + skb_headlen(skb)) +
-                                qeth_get_elements_for_frags(skb);
+        addr_t start = (addr_t)tcp_hdr(skb) + tcp_hdrlen(skb);
+        addr_t end = (addr_t)skb->data + skb_headlen(skb);
+        int elements = qeth_get_elements_for_frags(skb);
+
+        if (start != end)
+                elements += qeth_get_elements_for_range(start, end);
 
         if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
                 QETH_DBF_MESSAGE(2,
@@ -2882,8 +2865,8 @@ static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
                 qeth_l3_set_offline(cgdev);
 
         if (card->dev) {
-                netif_napi_del(&card->napi);
                 unregister_netdev(card->dev);
+                free_netdev(card->dev);
                 card->dev = NULL;
         }
 
diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c
index ba2e0856d22c..8f5c1d7f751a 100644
--- a/drivers/s390/virtio/virtio_ccw.c
+++ b/drivers/s390/virtio/virtio_ccw.c
@@ -1297,6 +1297,9 @@ static int virtio_ccw_cio_notify(struct ccw_device *cdev, int event)
                 vcdev->device_lost = true;
                 rc = NOTIFY_DONE;
                 break;
+        case CIO_OPER:
+                rc = NOTIFY_OK;
+                break;
         default:
                 rc = NOTIFY_DONE;
                 break;
@@ -1309,6 +1312,27 @@ static struct ccw_device_id virtio_ids[] = {
         {},
 };
 
+#ifdef CONFIG_PM_SLEEP
+static int virtio_ccw_freeze(struct ccw_device *cdev)
+{
+        struct virtio_ccw_device *vcdev = dev_get_drvdata(&cdev->dev);
+
+        return virtio_device_freeze(&vcdev->vdev);
+}
+
+static int virtio_ccw_restore(struct ccw_device *cdev)
+{
+        struct virtio_ccw_device *vcdev = dev_get_drvdata(&cdev->dev);
+        int ret;
+
+        ret = virtio_ccw_set_transport_rev(vcdev);
+        if (ret)
+                return ret;
+
+        return virtio_device_restore(&vcdev->vdev);
+}
+#endif
+
 static struct ccw_driver virtio_ccw_driver = {
         .driver = {
                 .owner = THIS_MODULE,
@@ -1321,6 +1345,11 @@ static struct ccw_driver virtio_ccw_driver = {
         .set_online = virtio_ccw_online,
         .notify = virtio_ccw_cio_notify,
         .int_class = IRQIO_VIR,
+#ifdef CONFIG_PM_SLEEP
+        .freeze = virtio_ccw_freeze,
+        .thaw = virtio_ccw_restore,
+        .restore = virtio_ccw_restore,
+#endif
 };
 
 static int __init pure_hex(char **cp, unsigned int *val, int min_digit,
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index fcfd28d2884c..de1b3fce936d 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -185,7 +185,6 @@ ncr53c8xx-flags-$(CONFIG_SCSI_ZALON) \
 CFLAGS_ncr53c8xx.o      := $(ncr53c8xx-flags-y) $(ncr53c8xx-flags-m)
 zalon7xx-objs   := zalon.o ncr53c8xx.o
 NCR_Q720_mod-objs       := NCR_Q720.o ncr53c8xx.o
-oktagon_esp_mod-objs    := oktagon_esp.o oktagon_io.o
 
 # Files generated that shall be removed upon make clean
 clean-files :=  53c700_d.h 53c700_u.h
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index b3b931ab77eb..2664ea0df35f 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1693,8 +1693,10 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
          *      Map in the registers from the adapter.
          */
         aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
-        if ((*aac_drivers[index].init)(aac))
+        if ((*aac_drivers[index].init)(aac)) {
+                error = -ENODEV;
                 goto out_unmap;
+        }
 
         if (aac->sync_mode) {
                 if (aac_sync_mode)
diff --git a/drivers/scsi/aic7xxx/aiclib.c b/drivers/scsi/aic7xxx/aiclib.c
deleted file mode 100644
index 828ae3d9a510..000000000000
--- a/drivers/scsi/aic7xxx/aiclib.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Implementation of Utility functions for all SCSI device types.
- *
- * Copyright (c) 1997, 1998, 1999 Justin T. Gibbs.
- * Copyright (c) 1997, 1998 Kenneth D. Merry.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions, and the following disclaimer,
- *    without modification, immediately at the beginning of the file.
- * 2. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD: src/sys/cam/scsi/scsi_all.c,v 1.38 2002/09/23 04:56:35 mjacob Exp $
- * $Id$
- */
-
-#include "aiclib.h"
-
diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index 8e2f767147cb..5a645b8b9af1 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -1889,6 +1889,7 @@ void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
                 /* we will not receive ABTS response for this IO */
                 BNX2FC_IO_DBG(io_req, "Timer context finished processing "
                            "this scsi cmd\n");
+                return;
         }
 
         /* Cancel the timeout_work, as we received IO completion */
diff --git a/drivers/scsi/csiostor/csio_lnode.c b/drivers/scsi/csiostor/csio_lnode.c
index be5ee2d37815..7dbbbb81a1e7 100644
--- a/drivers/scsi/csiostor/csio_lnode.c
+++ b/drivers/scsi/csiostor/csio_lnode.c
@@ -114,7 +114,7 @@ static enum csio_ln_ev fwevt_to_lnevt[] = {
 static struct csio_lnode *
 csio_ln_lookup_by_portid(struct csio_hw *hw, uint8_t portid)
 {
-        struct csio_lnode *ln = hw->rln;
+        struct csio_lnode *ln;
         struct list_head *tmp;
 
         /* Match siblings lnode with portid */
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 022e421c2185..4b44325d1a82 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -876,6 +876,11 @@ static void alua_rtpg_work(struct work_struct *work)
 
 /**
  * alua_rtpg_queue() - cause RTPG to be submitted asynchronously
+ * @pg: ALUA port group associated with @sdev.
+ * @sdev: SCSI device for which to submit an RTPG.
+ * @qdata: Information about the callback to invoke after the RTPG.
+ * @force: Whether or not to submit an RTPG if a work item that will submit an
+ *         RTPG already has been scheduled.
  *
  * Returns true if and only if alua_rtpg_work() will be called asynchronously.
  * That function is responsible for calling @qdata->fn().
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 57bf43e34863..dd9464920456 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -328,8 +328,6 @@ static void scsi_host_dev_release(struct device *dev)
         if (shost->work_q)
                 destroy_workqueue(shost->work_q);
 
-        destroy_rcu_head(&shost->rcu);
-
         if (shost->shost_state == SHOST_CREATED) {
                 /*
                  * Free the shost_dev device name here if scsi_host_alloc()
@@ -404,7 +402,6 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
         INIT_LIST_HEAD(&shost->starved_list);
         init_waitqueue_head(&shost->host_wait);
         mutex_init(&shost->scan_mutex);
-        init_rcu_head(&shost->rcu);
 
         index = ida_simple_get(&host_index_ida, 0, 0, GFP_KERNEL);
         if (index < 0)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h
index 9a0696f68f37..b81a53c4a9a8 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.h
+++ b/drivers/scsi/ibmvscsi/ibmvfc.h
@@ -367,7 +367,7 @@ enum ibmvfc_fcp_rsp_info_codes {
 };
 
 struct ibmvfc_fcp_rsp_info {
-        __be16 reserved;
+        u8 reserved[3];
         u8 rsp_code;
         u8 reserved2[4];
 }__attribute__((packed, aligned (2)));
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 6de9681ace82..ceab5e5c41c2 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -223,6 +223,7 @@ out_done:
 static void sas_eh_finish_cmd(struct scsi_cmnd *cmd)
 {
         struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(cmd->device->host);
+        struct domain_device *dev = cmd_to_domain_dev(cmd);
         struct sas_task *task = TO_SAS_TASK(cmd);
 
         /* At this point, we only get called following an actual abort
@@ -231,6 +232,14 @@ static void sas_eh_finish_cmd(struct scsi_cmnd *cmd)
          */
         sas_end_task(cmd, task);
 
+        if (dev_is_sata(dev)) {
+                /* defer commands to libata so that libata EH can
+                 * handle ata qcs correctly
+                 */
+                list_move_tail(&cmd->eh_entry, &sas_ha->eh_ata_q);
+                return;
+        }
+
         /* now finish the command and move it on to the error
          * handler done list, this also takes it off the
          * error handler pending list.
@@ -238,22 +247,6 @@ static void sas_eh_finish_cmd(struct scsi_cmnd *cmd)
         scsi_eh_finish_cmd(cmd, &sas_ha->eh_done_q);
 }
 
-static void sas_eh_defer_cmd(struct scsi_cmnd *cmd)
-{
-        struct domain_device *dev = cmd_to_domain_dev(cmd);
-        struct sas_ha_struct *ha = dev->port->ha;
-        struct sas_task *task = TO_SAS_TASK(cmd);
-
-        if (!dev_is_sata(dev)) {
-                sas_eh_finish_cmd(cmd);
-                return;
-        }
-
-        /* report the timeout to libata */
-        sas_end_task(cmd, task);
-        list_move_tail(&cmd->eh_entry, &ha->eh_ata_q);
-}
-
 static void sas_scsi_clear_queue_lu(struct list_head *error_q, struct scsi_cmnd *my_cmd)
 {
         struct scsi_cmnd *cmd, *n;
@@ -261,7 +254,7 @@ static void sas_scsi_clear_queue_lu(struct list_head *error_q, struct scsi_cmnd
         list_for_each_entry_safe(cmd, n, error_q, eh_entry) {
                 if (cmd->device->sdev_target == my_cmd->device->sdev_target &&
                     cmd->device->lun == my_cmd->device->lun)
-                        sas_eh_defer_cmd(cmd);
+                        sas_eh_finish_cmd(cmd);
         }
 }
 
@@ -631,12 +624,12 @@ static void sas_eh_handle_sas_errors(struct Scsi_Host *shost, struct list_head *
                 case TASK_IS_DONE:
                         SAS_DPRINTK("%s: task 0x%p is done\n", __func__,
                                     task);
-                        sas_eh_defer_cmd(cmd);
+                        sas_eh_finish_cmd(cmd);
                         continue;
                 case TASK_IS_ABORTED:
                         SAS_DPRINTK("%s: task 0x%p is aborted\n",
                                     __func__, task);
-                        sas_eh_defer_cmd(cmd);
+                        sas_eh_finish_cmd(cmd);
                         continue;
                 case TASK_IS_AT_LU:
                         SAS_DPRINTK("task 0x%p is at LU: lu recover\n", task);
@@ -647,7 +640,7 @@ static void sas_eh_handle_sas_errors(struct Scsi_Host *shost, struct list_head *
                                             "recovered\n",
                                             SAS_ADDR(task->dev),
                                             cmd->device->lun);
-                                sas_eh_defer_cmd(cmd);
+                                sas_eh_finish_cmd(cmd);
                                 sas_scsi_clear_queue_lu(work_q, cmd);
                                 goto Again;
                         }
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 073ced07e662..dc8e850fbfd2 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -216,36 +216,30 @@ inline void megasas_return_cmd_fusion(struct megasas_instance *instance,
 /**
  * megasas_fire_cmd_fusion -    Sends command to the FW
  * @instance:                   Adapter soft state
- * @req_desc:                   32bit or 64bit Request descriptor
+ * @req_desc:                   64bit Request descriptor
  *
- * Perform PCI Write. Ventura supports 32 bit Descriptor.
- * Prior to Ventura (12G) MR controller supports 64 bit Descriptor.
+ * Perform PCI Write.
  */
 
 static void
 megasas_fire_cmd_fusion(struct megasas_instance *instance,
                 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc)
 {
-        if (instance->adapter_type == VENTURA_SERIES)
-                writel(le32_to_cpu(req_desc->u.low),
-                        &instance->reg_set->inbound_single_queue_port);
-        else {
 #if defined(writeq) && defined(CONFIG_64BIT)
-                u64 req_data = (((u64)le32_to_cpu(req_desc->u.high) << 32) |
-                                le32_to_cpu(req_desc->u.low));
+        u64 req_data = (((u64)le32_to_cpu(req_desc->u.high) << 32) |
+                le32_to_cpu(req_desc->u.low));
 
-                writeq(req_data, &instance->reg_set->inbound_low_queue_port);
+        writeq(req_data, &instance->reg_set->inbound_low_queue_port);
 #else
-                unsigned long flags;
-                spin_lock_irqsave(&instance->hba_lock, flags);
-                writel(le32_to_cpu(req_desc->u.low),
-                        &instance->reg_set->inbound_low_queue_port);
-                writel(le32_to_cpu(req_desc->u.high),
-                        &instance->reg_set->inbound_high_queue_port);
-                mmiowb();
-                spin_unlock_irqrestore(&instance->hba_lock, flags);
+        unsigned long flags;
+        spin_lock_irqsave(&instance->hba_lock, flags);
+        writel(le32_to_cpu(req_desc->u.low),
+                &instance->reg_set->inbound_low_queue_port);
+        writel(le32_to_cpu(req_desc->u.high),
+                &instance->reg_set->inbound_high_queue_port);
+        mmiowb();
+        spin_unlock_irqrestore(&instance->hba_lock, flags);
 #endif
-        }
 }
 
 /**
@@ -982,7 +976,6 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
         const char *sys_info;
         MFI_CAPABILITIES *drv_ops;
         u32 scratch_pad_2;
-        unsigned long flags;
         ktime_t time;
         bool cur_fw_64bit_dma_capable;
 
@@ -1121,14 +1114,7 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
                         break;
         }
 
-        /* For Ventura also IOC INIT required 64 bit Descriptor write. */
-        spin_lock_irqsave(&instance->hba_lock, flags);
-        writel(le32_to_cpu(req_desc.u.low),
-               &instance->reg_set->inbound_low_queue_port);
-        writel(le32_to_cpu(req_desc.u.high),
-               &instance->reg_set->inbound_high_queue_port);
-        mmiowb();
-        spin_unlock_irqrestore(&instance->hba_lock, flags);
+        megasas_fire_cmd_fusion(instance, &req_desc);
 
         wait_and_poll(instance, cmd, MFI_POLL_TIMEOUT_SECS);
 
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 13d6e4ec3022..0aafbfd1b746 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -2410,8 +2410,11 @@ _base_assign_reply_queues(struct MPT3SAS_ADAPTER *ioc)
                                 continue;
                         }
 
-                        for_each_cpu(cpu, mask)
+                        for_each_cpu_and(cpu, mask, cpu_online_mask) {
+                                if (cpu >= ioc->cpu_msix_table_sz)
+                                        break;
                                 ioc->cpu_msix_table[cpu] = reply_q->msix_index;
+                        }
                 }
                 return;
         }
@@ -6294,14 +6297,14 @@ _base_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
 }
 
 /**
- * _wait_for_commands_to_complete - reset controller
+ * mpt3sas_wait_for_commands_to_complete - reset controller
  * @ioc: Pointer to MPT_ADAPTER structure
  *
  * This function is waiting 10s for all pending commands to complete
  * prior to putting controller in reset.
  */
-static void
-_wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc)
+void
+mpt3sas_wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc)
 {
         u32 ioc_state;
 
@@ -6374,7 +6377,7 @@ mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc,
                         is_fault = 1;
         }
         _base_reset_handler(ioc, MPT3_IOC_PRE_RESET);
-        _wait_for_commands_to_complete(ioc);
+        mpt3sas_wait_for_commands_to_complete(ioc);
         _base_mask_interrupts(ioc);
         r = _base_make_ioc_ready(ioc, type);
         if (r)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index 789bc421424b..99ccf83b8c51 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -1433,6 +1433,9 @@ void mpt3sas_base_update_missing_delay(struct MPT3SAS_ADAPTER *ioc,
 
 int mpt3sas_port_enable(struct MPT3SAS_ADAPTER *ioc);
 
+void
+mpt3sas_wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc);
+
 
 /* scsih shared API */
 struct scsi_cmnd *mpt3sas_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc,
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 74fca184dba9..a1cb0236c550 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -2835,7 +2835,8 @@ scsih_abort(struct scsi_cmnd *scmd)
         _scsih_tm_display_info(ioc, scmd);
 
         sas_device_priv_data = scmd->device->hostdata;
-        if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
+        if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
+            ioc->remove_host) {
                 sdev_printk(KERN_INFO, scmd->device,
                         "device been deleted! scmd(%p)\n", scmd);
                 scmd->result = DID_NO_CONNECT << 16;
@@ -2898,7 +2899,8 @@ scsih_dev_reset(struct scsi_cmnd *scmd)
         _scsih_tm_display_info(ioc, scmd);
 
         sas_device_priv_data = scmd->device->hostdata;
-        if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
+        if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
+            ioc->remove_host) {
                 sdev_printk(KERN_INFO, scmd->device,
                         "device been deleted! scmd(%p)\n", scmd);
                 scmd->result = DID_NO_CONNECT << 16;
@@ -2961,7 +2963,8 @@ scsih_target_reset(struct scsi_cmnd *scmd)
         _scsih_tm_display_info(ioc, scmd);
 
         sas_device_priv_data = scmd->device->hostdata;
-        if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
+        if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
+            ioc->remove_host) {
                 starget_printk(KERN_INFO, starget, "target been deleted! scmd(%p)\n",
                         scmd);
                 scmd->result = DID_NO_CONNECT << 16;
@@ -3019,7 +3022,7 @@ scsih_host_reset(struct scsi_cmnd *scmd)
             ioc->name, scmd);
         scsi_print_command(scmd);
 
-        if (ioc->is_driver_loading) {
+        if (ioc->is_driver_loading || ioc->remove_host) {
                 pr_info(MPT3SAS_FMT "Blocking the host reset\n",
                     ioc->name);
                 r = FAILED;
@@ -4453,7 +4456,7 @@ _scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc)
                 st = scsi_cmd_priv(scmd);
                 mpt3sas_base_clear_st(ioc, st);
                 scsi_dma_unmap(scmd);
-                if (ioc->pci_error_recovery)
+                if (ioc->pci_error_recovery || ioc->remove_host)
                         scmd->result = DID_NO_CONNECT << 16;
                 else
                         scmd->result = DID_RESET << 16;
@@ -9739,6 +9742,10 @@ static void scsih_remove(struct pci_dev *pdev)
         unsigned long flags;
 
         ioc->remove_host = 1;
+
+        mpt3sas_wait_for_commands_to_complete(ioc);
+        _scsih_flush_running_cmds(ioc);
+
         _scsih_fw_event_cleanup_queue(ioc);
 
         spin_lock_irqsave(&ioc->fw_event_lock, flags);
@@ -9815,6 +9822,10 @@ scsih_shutdown(struct pci_dev *pdev)
         unsigned long flags;
 
         ioc->remove_host = 1;
+
+        mpt3sas_wait_for_commands_to_complete(ioc);
+        _scsih_flush_running_cmds(ioc);
+
         _scsih_fw_event_cleanup_queue(ioc);
 
         spin_lock_irqsave(&ioc->fw_event_lock, flags);
@@ -10547,7 +10558,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
             "fw_event_%s%d", ioc->driver_name, ioc->id);
         ioc->firmware_event_thread = alloc_ordered_workqueue(
-            ioc->firmware_event_name, WQ_MEM_RECLAIM);
+            ioc->firmware_event_name, 0);
         if (!ioc->firmware_event_thread) {
                 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
                     ioc->name, __FILE__, __LINE__, __func__);
diff --git a/drivers/scsi/qedi/qedi_fw.c b/drivers/scsi/qedi/qedi_fw.c
index 667d7697ba01..d09afe1b567d 100644
--- a/drivers/scsi/qedi/qedi_fw.c
+++ b/drivers/scsi/qedi/qedi_fw.c
@@ -762,6 +762,11 @@ static void qedi_process_cmd_cleanup_resp(struct qedi_ctx *qedi,
 
         iscsi_cid = cqe->conn_id;
         qedi_conn = qedi->cid_que.conn_cid_tbl[iscsi_cid];
+        if (!qedi_conn) {
+                QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
+                          "icid not found 0x%x\n", cqe->conn_id);
+                return;
+        }
 
         /* Based on this itt get the corresponding qedi_cmd */
         spin_lock_bh(&qedi_conn->tmf_work_lock);
diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c
index 029e2e69b29f..f57a94b4f0d9 100644
--- a/drivers/scsi/qedi/qedi_main.c
+++ b/drivers/scsi/qedi/qedi_main.c
@@ -1724,7 +1724,6 @@ static ssize_t qedi_show_boot_eth_info(void *data, int type, char *buf)
 {
         struct qedi_ctx *qedi = data;
         struct nvm_iscsi_initiator *initiator;
-        char *str = buf;
         int rc = 1;
         u32 ipv6_en, dhcp_en, ip_len;
         struct nvm_iscsi_block *block;
@@ -1758,32 +1757,32 @@ static ssize_t qedi_show_boot_eth_info(void *data, int type, char *buf)
 
         switch (type) {
         case ISCSI_BOOT_ETH_IP_ADDR:
-                rc = snprintf(str, ip_len, fmt, ip);
+                rc = snprintf(buf, ip_len, fmt, ip);
                 break;
         case ISCSI_BOOT_ETH_SUBNET_MASK:
-                rc = snprintf(str, ip_len, fmt, sub);
+                rc = snprintf(buf, ip_len, fmt, sub);
                 break;
         case ISCSI_BOOT_ETH_GATEWAY:
-                rc = snprintf(str, ip_len, fmt, gw);
+                rc = snprintf(buf, ip_len, fmt, gw);
                 break;
         case ISCSI_BOOT_ETH_FLAGS:
-                rc = snprintf(str, 3, "%hhd\n",
+                rc = snprintf(buf, 3, "%hhd\n",
                               SYSFS_FLAG_FW_SEL_BOOT);
                 break;
         case ISCSI_BOOT_ETH_INDEX:
-                rc = snprintf(str, 3, "0\n");
+                rc = snprintf(buf, 3, "0\n");
                 break;
         case ISCSI_BOOT_ETH_MAC:
-                rc = sysfs_format_mac(str, qedi->mac, ETH_ALEN);
+                rc = sysfs_format_mac(buf, qedi->mac, ETH_ALEN);
                 break;
         case ISCSI_BOOT_ETH_VLAN:
-                rc = snprintf(str, 12, "%d\n",
+                rc = snprintf(buf, 12, "%d\n",
                               GET_FIELD2(initiator->generic_cont0,
                                          NVM_ISCSI_CFG_INITIATOR_VLAN));
                 break;
         case ISCSI_BOOT_ETH_ORIGIN:
                 if (dhcp_en)
-                        rc = snprintf(str, 3, "3\n");
+                        rc = snprintf(buf, 3, "3\n");
                 break;
         default:
                 rc = 0;
@@ -1819,7 +1818,6 @@ static ssize_t qedi_show_boot_ini_info(void *data, int type, char *buf)
 {
         struct qedi_ctx *qedi = data;
         struct nvm_iscsi_initiator *initiator;
-        char *str = buf;
         int rc;
         struct nvm_iscsi_block *block;
 
@@ -1831,8 +1829,8 @@ static ssize_t qedi_show_boot_ini_info(void *data, int type, char *buf)
 
         switch (type) {
         case ISCSI_BOOT_INI_INITIATOR_NAME:
-                rc = snprintf(str, NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN, "%s\n",
-                              initiator->initiator_name.byte);
+                rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN,
+                             initiator->initiator_name.byte);
                 break;
         default:
                 rc = 0;
@@ -1860,7 +1858,6 @@ static ssize_t
 qedi_show_boot_tgt_info(struct qedi_ctx *qedi, int type,
                         char *buf, enum qedi_nvm_tgts idx)
 {
-        char *str = buf;
         int rc = 1;
         u32 ctrl_flags, ipv6_en, chap_en, mchap_en, ip_len;
         struct nvm_iscsi_block *block;
@@ -1899,48 +1896,48 @@ qedi_show_boot_tgt_info(struct qedi_ctx *qedi, int type,
 
         switch (type) {
         case ISCSI_BOOT_TGT_NAME:
-                rc = snprintf(str, NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN, "%s\n",
-                              block->target[idx].target_name.byte);
+                rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN,
+                             block->target[idx].target_name.byte);
                 break;
         case ISCSI_BOOT_TGT_IP_ADDR:
                 if (ipv6_en)
-                        rc = snprintf(str, ip_len, "%pI6\n",
+                        rc = snprintf(buf, ip_len, "%pI6\n",
                                       block->target[idx].ipv6_addr.byte);
                 else
-                        rc = snprintf(str, ip_len, "%pI4\n",
+                        rc = snprintf(buf, ip_len, "%pI4\n",
                                       block->target[idx].ipv4_addr.byte);
                 break;
         case ISCSI_BOOT_TGT_PORT:
-                rc = snprintf(str, 12, "%d\n",
+                rc = snprintf(buf, 12, "%d\n",
                               GET_FIELD2(block->target[idx].generic_cont0,
                                          NVM_ISCSI_CFG_TARGET_TCP_PORT));
                 break;
         case ISCSI_BOOT_TGT_LUN:
-                rc = snprintf(str, 22, "%.*d\n",
+                rc = snprintf(buf, 22, "%.*d\n",
                               block->target[idx].lun.value[1],
                               block->target[idx].lun.value[0]);
                 break;
         case ISCSI_BOOT_TGT_CHAP_NAME:
-                rc = snprintf(str, NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN, "%s\n",
-                              chap_name);
+                rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN,
+                             chap_name);
                 break;
         case ISCSI_BOOT_TGT_CHAP_SECRET:
-                rc = snprintf(str, NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN, "%s\n",
-                              chap_secret);
+                rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN,
+                             chap_secret);
                 break;
         case ISCSI_BOOT_TGT_REV_CHAP_NAME:
-                rc = snprintf(str, NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN, "%s\n",
-                              mchap_name);
+                rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN,
+                             mchap_name);
                 break;
         case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
-                rc = snprintf(str, NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN, "%s\n",
-                              mchap_secret);
+                rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN,
+                             mchap_secret);
                 break;
         case ISCSI_BOOT_TGT_FLAGS:
-                rc = snprintf(str, 3, "%hhd\n", SYSFS_FLAG_FW_SEL_BOOT);
+                rc = snprintf(buf, 3, "%hhd\n", SYSFS_FLAG_FW_SEL_BOOT);
                 break;
         case ISCSI_BOOT_TGT_NIC_ASSOC:
-                rc = snprintf(str, 3, "0\n");
+                rc = snprintf(buf, 3, "0\n");
                 break;
         default:
                 rc = 0;
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index be7d6824581a..c9689f97c307 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -261,9 +261,9 @@
 struct name_list_extended {
         struct get_name_list_extended *l;
         dma_addr_t              ldma;
-        struct list_head        fcports;        /* protect by sess_list */
+        struct list_head        fcports;
+        spinlock_t              fcports_lock;
         u32                     size;
-        u8                      sent;
 };
 /*
  * Timeout timer counts in seconds
@@ -2217,6 +2217,7 @@ typedef struct {
 
 /* FCP-4 types */
 #define FC4_TYPE_FCP_SCSI       0x08
+#define FC4_TYPE_NVME           0x28
 #define FC4_TYPE_OTHER          0x0
 #define FC4_TYPE_UNKNOWN        0xff
 
diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index 5bf9a59432f6..403fa096f8c8 100644
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -3179,6 +3179,7 @@ done_free_sp:
         sp->free(sp);
         fcport->flags &= ~FCF_ASYNC_SENT;
 done:
+        fcport->flags &= ~FCF_ASYNC_ACTIVE;
         return rval;
 }
 
@@ -3370,6 +3371,7 @@ done_free_sp:
         sp->free(sp);
         fcport->flags &= ~FCF_ASYNC_SENT;
 done:
+        fcport->flags &= ~FCF_ASYNC_ACTIVE;
         return rval;
 }
 
@@ -3971,6 +3973,9 @@ out:
         spin_lock_irqsave(&vha->work_lock, flags);
         vha->scan.scan_flags &= ~SF_SCANNING;
         spin_unlock_irqrestore(&vha->work_lock, flags);
+
+        if ((fc4type == FC4_TYPE_FCP_SCSI) && vha->flags.nvme_enabled)
+                qla24xx_async_gpnft(vha, FC4_TYPE_NVME);
 }
 
 static void qla2x00_async_gpnft_gnnft_sp_done(void *s, int res)
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index aececf664654..8d7fab3cd01d 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -59,8 +59,6 @@ qla2x00_sp_timeout(struct timer_list *t)
         req->outstanding_cmds[sp->handle] = NULL;
         iocb = &sp->u.iocb_cmd;
         iocb->timeout(sp);
-        if (sp->type != SRB_ELS_DCMD)
-                sp->free(sp);
         spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
 }
 
@@ -102,7 +100,6 @@ qla2x00_async_iocb_timeout(void *data)
         srb_t *sp = data;
         fc_port_t *fcport = sp->fcport;
         struct srb_iocb *lio = &sp->u.iocb_cmd;
-        struct event_arg ea;
 
         if (fcport) {
                 ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
@@ -117,25 +114,13 @@ qla2x00_async_iocb_timeout(void *data)
 
         switch (sp->type) {
         case SRB_LOGIN_CMD:
-                if (!fcport)
-                        break;
                 /* Retry as needed. */
                 lio->u.logio.data[0] = MBS_COMMAND_ERROR;
                 lio->u.logio.data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
                         QLA_LOGIO_LOGIN_RETRIED : 0;
-                memset(&ea, 0, sizeof(ea));
-                ea.event = FCME_PLOGI_DONE;
-                ea.fcport = sp->fcport;
-                ea.data[0] = lio->u.logio.data[0];
-                ea.data[1] = lio->u.logio.data[1];
-                ea.sp = sp;
-                qla24xx_handle_plogi_done_event(fcport->vha, &ea);
+                sp->done(sp, QLA_FUNCTION_TIMEOUT);
                 break;
         case SRB_LOGOUT_CMD:
-                if (!fcport)
-                        break;
-                qlt_logo_completion_handler(fcport, QLA_FUNCTION_TIMEOUT);
-                break;
         case SRB_CT_PTHRU_CMD:
         case SRB_MB_IOCB:
         case SRB_NACK_PLOGI:
@@ -228,6 +213,7 @@ done_free_sp:
         sp->free(sp);
         fcport->flags &= ~FCF_ASYNC_SENT;
 done:
+        fcport->flags &= ~FCF_ASYNC_ACTIVE;
         return rval;
 }
 
@@ -235,12 +221,10 @@ static void
 qla2x00_async_logout_sp_done(void *ptr, int res)
 {
         srb_t *sp = ptr;
-        struct srb_iocb *lio = &sp->u.iocb_cmd;
 
         sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
-        if (!test_bit(UNLOADING, &sp->vha->dpc_flags))
-                qla2x00_post_async_logout_done_work(sp->vha, sp->fcport,
-                    lio->u.logio.data);
+        sp->fcport->login_gen++;
+        qlt_logo_completion_handler(sp->fcport, res);
         sp->free(sp);
 }
 
@@ -280,7 +264,7 @@ qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
 done_free_sp:
         sp->free(sp);
 done:
-        fcport->flags &= ~FCF_ASYNC_SENT;
+        fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
         return rval;
 }
 
@@ -288,6 +272,7 @@ void
 qla2x00_async_prlo_done(struct scsi_qla_host *vha, fc_port_t *fcport,
     uint16_t *data)
 {
+        fcport->flags &= ~FCF_ASYNC_ACTIVE;
         /* Don't re-login in target mode */
         if (!fcport->tgt_session)
                 qla2x00_mark_device_lost(vha, fcport, 1, 0);
@@ -301,6 +286,7 @@ qla2x00_async_prlo_sp_done(void *s, int res)
         struct srb_iocb *lio = &sp->u.iocb_cmd;
         struct scsi_qla_host *vha = sp->vha;
 
+        sp->fcport->flags &= ~FCF_ASYNC_ACTIVE;
         if (!test_bit(UNLOADING, &vha->dpc_flags))
                 qla2x00_post_async_prlo_done_work(sp->fcport->vha, sp->fcport,
                     lio->u.logio.data);
@@ -339,6 +325,7 @@ qla2x00_async_prlo(struct scsi_qla_host *vha, fc_port_t *fcport)
 done_free_sp:
         sp->free(sp);
 done:
+        fcport->flags &= ~FCF_ASYNC_ACTIVE;
         return rval;
 }
 
@@ -392,6 +379,8 @@ qla2x00_async_adisc_sp_done(void *ptr, int res)
             "Async done-%s res %x %8phC\n",
             sp->name, res, sp->fcport->port_name);
 
+        sp->fcport->flags &= ~FCF_ASYNC_SENT;
+
         memset(&ea, 0, sizeof(ea));
         ea.event = FCME_ADISC_DONE;
         ea.rc = res;
@@ -442,7 +431,7 @@ qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
 done_free_sp:
         sp->free(sp);
 done:
-        fcport->flags &= ~FCF_ASYNC_SENT;
+        fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
         qla2x00_post_async_adisc_work(vha, fcport, data);
         return rval;
 }
@@ -660,8 +649,7 @@ qla24xx_async_gnl_sp_done(void *s, int res)
                     (loop_id & 0x7fff));
         }
 
-        spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
-        vha->gnl.sent = 0;
+        spin_lock_irqsave(&vha->gnl.fcports_lock, flags);
 
         INIT_LIST_HEAD(&h);
         fcport = tf = NULL;
@@ -670,12 +658,16 @@ qla24xx_async_gnl_sp_done(void *s, int res)
 
         list_for_each_entry_safe(fcport, tf, &h, gnl_entry) {
                 list_del_init(&fcport->gnl_entry);
+                spin_lock(&vha->hw->tgt.sess_lock);
                 fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
+                spin_unlock(&vha->hw->tgt.sess_lock);
                 ea.fcport = fcport;
 
                 qla2x00_fcport_event_handler(vha, &ea);
         }
+        spin_unlock_irqrestore(&vha->gnl.fcports_lock, flags);
 
+        spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
         /* create new fcport if fw has knowledge of new sessions */
         for (i = 0; i < n; i++) {
                 port_id_t id;
@@ -727,18 +719,21 @@ int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
         ql_dbg(ql_dbg_disc, vha, 0x20d9,
             "Async-gnlist WWPN %8phC \n", fcport->port_name);
 
-        spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
+        spin_lock_irqsave(&vha->gnl.fcports_lock, flags);
+        if (!list_empty(&fcport->gnl_entry)) {
+                spin_unlock_irqrestore(&vha->gnl.fcports_lock, flags);
+                rval = QLA_SUCCESS;
+                goto done;
+        }
+
+        spin_lock(&vha->hw->tgt.sess_lock);
         fcport->disc_state = DSC_GNL;
         fcport->last_rscn_gen = fcport->rscn_gen;
         fcport->last_login_gen = fcport->login_gen;
+        spin_unlock(&vha->hw->tgt.sess_lock);
 
         list_add_tail(&fcport->gnl_entry, &vha->gnl.fcports);
-        if (vha->gnl.sent) {
-                spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
-                return QLA_SUCCESS;
-        }
-        vha->gnl.sent = 1;
-        spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+        spin_unlock_irqrestore(&vha->gnl.fcports_lock, flags);
 
         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
         if (!sp)
@@ -1066,6 +1061,7 @@ void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
         fc_port_t *fcport = ea->fcport;
         struct port_database_24xx *pd;
         struct srb *sp = ea->sp;
+        uint8_t ls;
 
         pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
 
@@ -1078,7 +1074,12 @@ void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
         if (fcport->disc_state == DSC_DELETE_PEND)
                 return;
 
-        switch (pd->current_login_state) {
+        if (fcport->fc4f_nvme)
+                ls = pd->current_login_state >> 4;
+        else
+                ls = pd->current_login_state & 0xf;
+
+        switch (ls) {
         case PDS_PRLI_COMPLETE:
                 __qla24xx_parse_gpdb(vha, fcport, pd);
                 break;
@@ -1168,8 +1169,9 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
         if (fcport->scan_state != QLA_FCPORT_FOUND)
                 return 0;
 
-        if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
-            (fcport->fw_login_state == DSC_LS_PRLI_PEND))
+        if ((fcport->loop_id != FC_NO_LOOP_ID) &&
+            ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
+             (fcport->fw_login_state == DSC_LS_PRLI_PEND)))
                 return 0;
 
         if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) {
@@ -1544,6 +1546,7 @@ qla24xx_abort_sp_done(void *ptr, int res)
         srb_t *sp = ptr;
         struct srb_iocb *abt = &sp->u.iocb_cmd;
 
+        del_timer(&sp->u.iocb_cmd.timer);
         complete(&abt->u.abt.comp);
 }
 
@@ -1716,7 +1719,6 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
 
                         set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
                         spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
-                        ea->fcport->loop_id = FC_NO_LOOP_ID;
                         ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
                         ea->fcport->logout_on_delete = 1;
                         ea->fcport->send_els_logo = 0;
@@ -1808,6 +1810,7 @@ qla2x00_async_logout_done(struct scsi_qla_host *vha, fc_port_t *fcport,
         qla2x00_mark_device_lost(vha, fcport, 1, 0);
         qlt_logo_completion_handler(fcport, data[0]);
         fcport->login_gen++;
+        fcport->flags &= ~FCF_ASYNC_ACTIVE;
         return;
 }
 
@@ -1815,6 +1818,7 @@ void
 qla2x00_async_adisc_done(struct scsi_qla_host *vha, fc_port_t *fcport,
     uint16_t *data)
 {
+        fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
         if (data[0] == MBS_COMMAND_COMPLETE) {
                 qla2x00_update_fcport(vha, fcport);
 
@@ -1822,7 +1826,6 @@ qla2x00_async_adisc_done(struct scsi_qla_host *vha, fc_port_t *fcport,
         }
 
         /* Retry login. */
-        fcport->flags &= ~FCF_ASYNC_SENT;
         if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
         else
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 1b62e943ec49..8d00d559bd26 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -3275,12 +3275,11 @@ qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb)
         memset(abt_iocb, 0, sizeof(struct abort_entry_24xx));
         abt_iocb->entry_type = ABORT_IOCB_TYPE;
         abt_iocb->entry_count = 1;
-        abt_iocb->handle =
-             cpu_to_le32(MAKE_HANDLE(aio->u.abt.req_que_no,
-                 aio->u.abt.cmd_hndl));
+        abt_iocb->handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
         abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
         abt_iocb->handle_to_abort =
-            cpu_to_le32(MAKE_HANDLE(req->id, aio->u.abt.cmd_hndl));
+            cpu_to_le32(MAKE_HANDLE(aio->u.abt.req_que_no,
+                                    aio->u.abt.cmd_hndl));
         abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
         abt_iocb->port_id[1] = sp->fcport->d_id.b.area;
         abt_iocb->port_id[2] = sp->fcport->d_id.b.domain;
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 14109d86c3f6..89f93ebd819d 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -272,7 +272,8 @@ qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 
         /* Read all mbox registers? */
-        mboxes = (1 << ha->mbx_count) - 1;
+        WARN_ON_ONCE(ha->mbx_count > 32);
+        mboxes = (1ULL << ha->mbx_count) - 1;
         if (!ha->mcp)
                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
         else
@@ -2880,7 +2881,8 @@ qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 
         /* Read all mbox registers? */
-        mboxes = (1 << ha->mbx_count) - 1;
+        WARN_ON_ONCE(ha->mbx_count > 32);
+        mboxes = (1ULL << ha->mbx_count) - 1;
         if (!ha->mcp)
                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
         else
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 12ee6e02d146..5c5dcca4d1da 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -454,7 +454,7 @@ static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
         ha->req_q_map[0] = req;
         set_bit(0, ha->rsp_qid_map);
         set_bit(0, ha->req_qid_map);
-        return 1;
+        return 0;
 
 fail_qpair_map:
         kfree(ha->base_qpair);
@@ -471,6 +471,9 @@ fail_req_map:
 
 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
 {
+        if (!ha->req_q_map)
+                return;
+
         if (IS_QLAFX00(ha)) {
                 if (req && req->ring_fx00)
                         dma_free_coherent(&ha->pdev->dev,
@@ -481,14 +484,17 @@ static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
                 (req->length + 1) * sizeof(request_t),
                 req->ring, req->dma);
 
-        if (req)
+        if (req) {
                 kfree(req->outstanding_cmds);
-
-        kfree(req);
+                kfree(req);
+        }
 }
 
 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
 {
+        if (!ha->rsp_q_map)
+                return;
+
         if (IS_QLAFX00(ha)) {
                 if (rsp && rsp->ring)
                         dma_free_coherent(&ha->pdev->dev,
@@ -499,7 +505,8 @@ static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
                 (rsp->length + 1) * sizeof(response_t),
                 rsp->ring, rsp->dma);
         }
-        kfree(rsp);
+        if (rsp)
+                kfree(rsp);
 }
 
 static void qla2x00_free_queues(struct qla_hw_data *ha)
@@ -1723,6 +1730,8 @@ __qla2x00_abort_all_cmds(struct qla_qpair *qp, int res)
         struct qla_tgt_cmd *cmd;
         uint8_t trace = 0;
 
+        if (!ha->req_q_map)
+                return;
         spin_lock_irqsave(qp->qp_lock_ptr, flags);
         req = qp->req;
         for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
@@ -3095,14 +3104,14 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
         /* Set up the irqs */
         ret = qla2x00_request_irqs(ha, rsp);
         if (ret)
-                goto probe_hw_failed;
+                goto probe_failed;
 
         /* Alloc arrays of request and response ring ptrs */
-        if (!qla2x00_alloc_queues(ha, req, rsp)) {
+        if (qla2x00_alloc_queues(ha, req, rsp)) {
                 ql_log(ql_log_fatal, base_vha, 0x003d,
                     "Failed to allocate memory for queue pointers..."
                     "aborting.\n");
-                goto probe_init_failed;
+                goto probe_failed;
         }
 
         if (ha->mqenable && shost_use_blk_mq(host)) {
@@ -3387,15 +3396,6 @@ skip_dpc:
 
         return 0;
 
-probe_init_failed:
-        qla2x00_free_req_que(ha, req);
-        ha->req_q_map[0] = NULL;
-        clear_bit(0, ha->req_qid_map);
-        qla2x00_free_rsp_que(ha, rsp);
-        ha->rsp_q_map[0] = NULL;
-        clear_bit(0, ha->rsp_qid_map);
-        ha->max_req_queues = ha->max_rsp_queues = 0;
-
 probe_failed:
         if (base_vha->timer_active)
                 qla2x00_stop_timer(base_vha);
@@ -3625,6 +3625,8 @@ qla2x00_remove_one(struct pci_dev *pdev)
         }
         qla2x00_wait_for_hba_ready(base_vha);
 
+        qla2x00_wait_for_sess_deletion(base_vha);
+
         /*
          * if UNLOAD flag is already set, then continue unload,
          * where it was set first.
@@ -4506,11 +4508,17 @@ qla2x00_mem_free(struct qla_hw_data *ha)
         if (ha->init_cb)
                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
                         ha->init_cb, ha->init_cb_dma);
-        vfree(ha->optrom_buffer);
-        kfree(ha->nvram);
-        kfree(ha->npiv_info);
-        kfree(ha->swl);
-        kfree(ha->loop_id_map);
+
+        if (ha->optrom_buffer)
+                vfree(ha->optrom_buffer);
+        if (ha->nvram)
+                kfree(ha->nvram);
+        if (ha->npiv_info)
+                kfree(ha->npiv_info);
+        if (ha->swl)
+                kfree(ha->swl);
+        if (ha->loop_id_map)
+                kfree(ha->loop_id_map);
 
         ha->srb_mempool = NULL;
         ha->ctx_mempool = NULL;
@@ -4526,6 +4534,15 @@ qla2x00_mem_free(struct qla_hw_data *ha)
         ha->ex_init_cb_dma = 0;
         ha->async_pd = NULL;
         ha->async_pd_dma = 0;
+        ha->loop_id_map = NULL;
+        ha->npiv_info = NULL;
+        ha->optrom_buffer = NULL;
+        ha->swl = NULL;
+        ha->nvram = NULL;
+        ha->mctp_dump = NULL;
+        ha->dcbx_tlv = NULL;
+        ha->xgmac_data = NULL;
+        ha->sfp_data = NULL;
 
         ha->s_dma_pool = NULL;
         ha->dl_dma_pool = NULL;
@@ -4575,6 +4592,7 @@ struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
 
         spin_lock_init(&vha->work_lock);
         spin_lock_init(&vha->cmd_list_lock);
+        spin_lock_init(&vha->gnl.fcports_lock);
         init_waitqueue_head(&vha->fcport_waitQ);
         init_waitqueue_head(&vha->vref_waitq);
 
@@ -4804,9 +4822,12 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
                         fcport->d_id = e->u.new_sess.id;
                         fcport->flags |= FCF_FABRIC_DEVICE;
                         fcport->fw_login_state = DSC_LS_PLOGI_PEND;
-                        if (e->u.new_sess.fc4_type == FC4_TYPE_FCP_SCSI)
+                        if (e->u.new_sess.fc4_type == FC4_TYPE_FCP_SCSI) {
                                 fcport->fc4_type = FC4_TYPE_FCP_SCSI;
-
+                        } else if (e->u.new_sess.fc4_type == FC4_TYPE_NVME) {
+                                fcport->fc4_type = FC4_TYPE_OTHER;
+                                fcport->fc4f_nvme = FC4_TYPE_NVME;
+                        }
                         memcpy(fcport->port_name, e->u.new_sess.port_name,
                             WWN_SIZE);
                 } else {
@@ -4875,6 +4896,8 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
                         }
                         qlt_plogi_ack_unref(vha, pla);
                 } else {
+                        fc_port_t *dfcp = NULL;
+
                         spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
                         tfcp = qla2x00_find_fcport_by_nportid(vha,
                             &e->u.new_sess.id, 1);
@@ -4897,11 +4920,13 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
                                 default:
                                         fcport->login_pause = 1;
                                         tfcp->conflict = fcport;
-                                        qlt_schedule_sess_for_deletion(tfcp);
+                                        dfcp = tfcp;
                                         break;
                                 }
                         }
                         spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+                        if (dfcp)
+                                qlt_schedule_sess_for_deletion(tfcp);
 
                         wwn = wwn_to_u64(fcport->node_name);
 
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index fc89af8fe256..b49ac85f3de2 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1224,10 +1224,10 @@ static void qla24xx_chk_fcp_state(struct fc_port *sess)
         }
 }
 
-/* ha->tgt.sess_lock supposed to be held on entry */
 void qlt_schedule_sess_for_deletion(struct fc_port *sess)
 {
         struct qla_tgt *tgt = sess->tgt;
+        struct qla_hw_data *ha = sess->vha->hw;
         unsigned long flags;
 
         if (sess->disc_state == DSC_DELETE_PEND)
@@ -1244,16 +1244,16 @@ void qlt_schedule_sess_for_deletion(struct fc_port *sess)
                         return;
         }
 
+        spin_lock_irqsave(&ha->tgt.sess_lock, flags);
         if (sess->deleted == QLA_SESS_DELETED)
                 sess->logout_on_delete = 0;
 
-        spin_lock_irqsave(&sess->vha->work_lock, flags);
         if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) {
-                spin_unlock_irqrestore(&sess->vha->work_lock, flags);
+                spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
                 return;
         }
         sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
-        spin_unlock_irqrestore(&sess->vha->work_lock, flags);
+        spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
 
         sess->disc_state = DSC_DELETE_PEND;
 
@@ -1262,13 +1262,10 @@ void qlt_schedule_sess_for_deletion(struct fc_port *sess)
         ql_dbg(ql_dbg_tgt, sess->vha, 0xe001,
             "Scheduling sess %p for deletion\n", sess);
 
-        /* use cancel to push work element through before re-queue */
-        cancel_work_sync(&sess->del_work);
         INIT_WORK(&sess->del_work, qla24xx_delete_sess_fn);
-        queue_work(sess->vha->hw->wq, &sess->del_work);
+        WARN_ON(!queue_work(sess->vha->hw->wq, &sess->del_work));
 }
 
-/* ha->tgt.sess_lock supposed to be held on entry */
 static void qlt_clear_tgt_db(struct qla_tgt *tgt)
 {
         struct fc_port *sess;
@@ -1451,8 +1448,8 @@ qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
         ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess);
 
         sess->local = 1;
-        qlt_schedule_sess_for_deletion(sess);
         spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+        qlt_schedule_sess_for_deletion(sess);
 }
 
 static inline int test_tgt_sess_count(struct qla_tgt *tgt)
@@ -1512,10 +1509,8 @@ int qlt_stop_phase1(struct qla_tgt *tgt)
          * Lock is needed, because we still can get an incoming packet.
          */
         mutex_lock(&vha->vha_tgt.tgt_mutex);
-        spin_lock_irqsave(&ha->tgt.sess_lock, flags);
         tgt->tgt_stop = 1;
         qlt_clear_tgt_db(tgt);
-        spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
         mutex_unlock(&vha->vha_tgt.tgt_mutex);
         mutex_unlock(&qla_tgt_mutex);
 
@@ -4871,8 +4866,6 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
                                     sess);
                                 qlt_send_term_imm_notif(vha, iocb, 1);
                                 res = 0;
-                                spin_lock_irqsave(&tgt->ha->tgt.sess_lock,
-                                    flags);
                                 break;
                         }
 
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index fc233717355f..817f312023a9 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -168,6 +168,8 @@
 #define DEV_DB_NON_PERSISTENT   0
 #define DEV_DB_PERSISTENT       1
 
+#define QL4_ISP_REG_DISCONNECT 0xffffffffU
+
 #define COPY_ISID(dst_isid, src_isid) {                 \
         int i, j;                                       \
         for (i = 0, j = ISID_SIZE - 1; i < ISID_SIZE;)  \
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 82e889bbe0ed..fc2c97d9a0d6 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -262,6 +262,24 @@ static struct iscsi_transport qla4xxx_iscsi_transport = {
 
 static struct scsi_transport_template *qla4xxx_scsi_transport;
 
+static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha)
+{
+        u32 reg_val = 0;
+        int rval = QLA_SUCCESS;
+
+        if (is_qla8022(ha))
+                reg_val = readl(&ha->qla4_82xx_reg->host_status);
+        else if (is_qla8032(ha) || is_qla8042(ha))
+                reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
+        else
+                reg_val = readw(&ha->reg->ctrl_status);
+
+        if (reg_val == QL4_ISP_REG_DISCONNECT)
+                rval = QLA_ERROR;
+
+        return rval;
+}
+
 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
                              uint32_t iface_type, uint32_t payload_size,
                              uint32_t pid, struct sockaddr *dst_addr)
@@ -9186,10 +9204,17 @@ static int qla4xxx_eh_abort(struct scsi_cmnd *cmd)
         struct srb *srb = NULL;
         int ret = SUCCESS;
         int wait = 0;
+        int rval;
 
         ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n",
                    ha->host_no, id, lun, cmd, cmd->cmnd[0]);
 
+        rval = qla4xxx_isp_check_reg(ha);
+        if (rval != QLA_SUCCESS) {
+                ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
+                return FAILED;
+        }
+
         spin_lock_irqsave(&ha->hardware_lock, flags);
         srb = (struct srb *) CMD_SP(cmd);
         if (!srb) {
@@ -9241,6 +9266,7 @@ static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
         struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
         struct ddb_entry *ddb_entry = cmd->device->hostdata;
         int ret = FAILED, stat;
+        int rval;
 
         if (!ddb_entry)
                 return ret;
@@ -9260,6 +9286,12 @@ static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
                       cmd, jiffies, cmd->request->timeout / HZ,
                       ha->dpc_flags, cmd->result, cmd->allowed));
 
+        rval = qla4xxx_isp_check_reg(ha);
+        if (rval != QLA_SUCCESS) {
+                ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
+                return FAILED;
+        }
+
         /* FIXME: wait for hba to go online */
         stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
         if (stat != QLA_SUCCESS) {
@@ -9303,6 +9335,7 @@ static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
         struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
         struct ddb_entry *ddb_entry = cmd->device->hostdata;
         int stat, ret;
+        int rval;
 
         if (!ddb_entry)
                 return FAILED;
@@ -9320,6 +9353,12 @@ static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
                       ha->host_no, cmd, jiffies, cmd->request->timeout / HZ,
                       ha->dpc_flags, cmd->result, cmd->allowed));
 
+        rval = qla4xxx_isp_check_reg(ha);
+        if (rval != QLA_SUCCESS) {
+                ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
+                return FAILED;
+        }
+
         stat = qla4xxx_reset_target(ha, ddb_entry);
         if (stat != QLA_SUCCESS) {
                 starget_printk(KERN_INFO, scsi_target(cmd->device),
@@ -9374,9 +9413,16 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
 {
         int return_status = FAILED;
         struct scsi_qla_host *ha;
+        int rval;
 
         ha = to_qla_host(cmd->device->host);
 
+        rval = qla4xxx_isp_check_reg(ha);
+        if (rval != QLA_SUCCESS) {
+                ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n");
+                return FAILED;
+        }
+
         if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba)
                 qla4_83xx_set_idc_dontreset(ha);
 
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index d042915ce895..ca53a5f785ee 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -223,7 +223,8 @@ static void scsi_eh_reset(struct scsi_cmnd *scmd)
 
 static void scsi_eh_inc_host_failed(struct rcu_head *head)
 {
-        struct Scsi_Host *shost = container_of(head, typeof(*shost), rcu);
+        struct scsi_cmnd *scmd = container_of(head, typeof(*scmd), rcu);
+        struct Scsi_Host *shost = scmd->device->host;
         unsigned long flags;
 
         spin_lock_irqsave(shost->host_lock, flags);
@@ -259,7 +260,7 @@ void scsi_eh_scmd_add(struct scsi_cmnd *scmd)
          * Ensure that all tasks observe the host state change before the
          * host_failed change.
          */
-        call_rcu(&shost->rcu, scsi_eh_inc_host_failed);
+        call_rcu(&scmd->rcu, scsi_eh_inc_host_failed);
 }
 
 /**
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index a86df9ca7d1c..c84f931388f2 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -671,6 +671,7 @@ static bool scsi_end_request(struct request *req, blk_status_t error,
         if (!blk_rq_is_scsi(req)) {
                 WARN_ON_ONCE(!(cmd->flags & SCMD_INITIALIZED));
                 cmd->flags &= ~SCMD_INITIALIZED;
+                destroy_rcu_head(&cmd->rcu);
         }
 
         if (req->mq_ctx) {
@@ -720,6 +721,8 @@ static blk_status_t __scsi_error_from_host_byte(struct scsi_cmnd *cmd,
                 int result)
 {
         switch (host_byte(result)) {
+        case DID_OK:
+                return BLK_STS_OK;
         case DID_TRANSPORT_FAILFAST:
                 return BLK_STS_TRANSPORT;
         case DID_TARGET_FAILURE:
@@ -1151,6 +1154,7 @@ static void scsi_initialize_rq(struct request *rq)
         struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);
 
         scsi_req_init(&cmd->req);
+        init_rcu_head(&cmd->rcu);
         cmd->jiffies_at_alloc = jiffies;
         cmd->retries = 0;
 }
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index bff21e636ddd..3541caf3fceb 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2595,6 +2595,7 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer)
         int res;
         struct scsi_device *sdp = sdkp->device;
         struct scsi_mode_data data;
+        int disk_ro = get_disk_ro(sdkp->disk);
         int old_wp = sdkp->write_prot;
 
         set_disk_ro(sdkp->disk, 0);
@@ -2635,7 +2636,7 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer)
                           "Test WP failed, assume Write Enabled\n");
         } else {
                 sdkp->write_prot = ((data.device_specific & 0x80) != 0);
-                set_disk_ro(sdkp->disk, sdkp->write_prot);
+                set_disk_ro(sdkp->disk, sdkp->write_prot || disk_ro);
                 if (sdkp->first_scan || old_wp != sdkp->write_prot) {
                         sd_printk(KERN_NOTICE, sdkp, "Write Protect is %s\n",
                                   sdkp->write_prot ? "on" : "off");
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index 6c348a211ebb..89cf4498f535 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -403,7 +403,7 @@ static int sd_zbc_check_capacity(struct scsi_disk *sdkp, unsigned char *buf)
  */
 static int sd_zbc_check_zone_size(struct scsi_disk *sdkp)
 {
-        u64 zone_blocks;
+        u64 zone_blocks = 0;
         sector_t block = 0;
         unsigned char *buf;
         unsigned char *rec;
@@ -421,10 +421,8 @@ static int sd_zbc_check_zone_size(struct scsi_disk *sdkp)
 
         /* Do a report zone to get the same field */
         ret = sd_zbc_report_zones(sdkp, buf, SD_ZBC_BUF_SIZE, 0);
-        if (ret) {
-                zone_blocks = 0;
-                goto out;
-        }
+        if (ret)
+                goto out_free;
 
         same = buf[4] & 0x0f;
         if (same > 0) {
@@ -464,7 +462,7 @@ static int sd_zbc_check_zone_size(struct scsi_disk *sdkp)
                         ret = sd_zbc_report_zones(sdkp, buf,
                                                   SD_ZBC_BUF_SIZE, block);
                         if (ret)
-                                return ret;
+                                goto out_free;
                 }
 
         } while (block < sdkp->capacity);
@@ -472,35 +470,32 @@ static int sd_zbc_check_zone_size(struct scsi_disk *sdkp)
         zone_blocks = sdkp->zone_blocks;
 
 out:
-        kfree(buf);
-
         if (!zone_blocks) {
                 if (sdkp->first_scan)
                         sd_printk(KERN_NOTICE, sdkp,
                                   "Devices with non constant zone "
                                   "size are not supported\n");
-                return -ENODEV;
-        }
-
-        if (!is_power_of_2(zone_blocks)) {
+                ret = -ENODEV;
+        } else if (!is_power_of_2(zone_blocks)) {
                 if (sdkp->first_scan)
                         sd_printk(KERN_NOTICE, sdkp,
                                   "Devices with non power of 2 zone "
                                   "size are not supported\n");
-                return -ENODEV;
-        }
-
-        if (logical_to_sectors(sdkp->device, zone_blocks) > UINT_MAX) {
+                ret = -ENODEV;
+        } else if (logical_to_sectors(sdkp->device, zone_blocks) > UINT_MAX) {
                 if (sdkp->first_scan)
                         sd_printk(KERN_NOTICE, sdkp,
                                   "Zone size too large\n");
-                return -ENODEV;
+                ret = -ENODEV;
+        } else {
+                sdkp->zone_blocks = zone_blocks;
+                sdkp->zone_shift = ilog2(zone_blocks);
         }
 
-        sdkp->zone_blocks = zone_blocks;
-        sdkp->zone_shift = ilog2(zone_blocks);
+out_free:
+        kfree(buf);
 
-        return 0;
+        return ret;
 }
 
 /**
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 40fc7a590e81..8c51d628b52e 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1311,7 +1311,8 @@ static int storvsc_do_io(struct hv_device *device,
                          */
                         cpumask_and(&alloced_mask, &stor_device->alloced_cpus,
                                     cpumask_of_node(cpu_to_node(q_num)));
-                        for_each_cpu(tgt_cpu, &alloced_mask) {
+                        for_each_cpu_wrap(tgt_cpu, &alloced_mask,
+                                        outgoing_channel->target_cpu + 1) {
                                 if (tgt_cpu != outgoing_channel->target_cpu) {
                                         outgoing_channel =
                                         stor_device->stor_chns[tgt_cpu];
@@ -1657,7 +1658,7 @@ static struct scsi_host_template scsi_driver = {
         .eh_timed_out =         storvsc_eh_timed_out,
         .slave_alloc =          storvsc_device_alloc,
         .slave_configure =      storvsc_device_configure,
-        .cmd_per_lun =          255,
+        .cmd_per_lun =          2048,
         .this_id =              -1,
         .use_clustering =       ENABLE_CLUSTERING,
         /* Make sure we dont get a sg segment crosses a page boundary */
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index ca360daa6a25..378af306fda1 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -536,7 +536,7 @@ sym_getsync(struct sym_hcb *np, u_char dt, u_char sfac, u_char *divp, u_char *fa
          *  Look for the greatest clock divisor that allows an 
          *  input speed faster than the period.
          */
-        while (div-- > 0)
+        while (--div > 0)
                 if (kpc >= (div_10M[div] << 2)) break;
 
         /*
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index a355d989b414..c7da2c185990 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4352,6 +4352,8 @@ static int ufshcd_slave_alloc(struct scsi_device *sdev)
         /* REPORT SUPPORTED OPERATION CODES is not supported */
         sdev->no_report_opcodes = 1;
 
+        /* WRITE_SAME command is not supported */
+        sdev->no_write_same = 1;
 
         ufshcd_set_queue_depth(sdev);
 
diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c
index e4f5bb056fd2..ba3cfa8e279b 100644
--- a/drivers/soc/fsl/qbman/qman.c
+++ b/drivers/soc/fsl/qbman/qman.c
@@ -2443,39 +2443,21 @@ struct cgr_comp {
         struct completion completion;
 };
 
-static int qman_delete_cgr_thread(void *p)
+static void qman_delete_cgr_smp_call(void *p)
 {
-        struct cgr_comp *cgr_comp = (struct cgr_comp *)p;
-        int ret;
-
-        ret = qman_delete_cgr(cgr_comp->cgr);
-        complete(&cgr_comp->completion);
-
-        return ret;
+        qman_delete_cgr((struct qman_cgr *)p);
 }
 
 void qman_delete_cgr_safe(struct qman_cgr *cgr)
 {
-        struct task_struct *thread;
-        struct cgr_comp cgr_comp;
-
         preempt_disable();
         if (qman_cgr_cpus[cgr->cgrid] != smp_processor_id()) {
-                init_completion(&cgr_comp.completion);
-                cgr_comp.cgr = cgr;
-                thread = kthread_create(qman_delete_cgr_thread, &cgr_comp,
-                                        "cgr_del");
-
-                if (IS_ERR(thread))
-                        goto out;
-
-                kthread_bind(thread, qman_cgr_cpus[cgr->cgrid]);
-                wake_up_process(thread);
-                wait_for_completion(&cgr_comp.completion);
+                smp_call_function_single(qman_cgr_cpus[cgr->cgrid],
+                                         qman_delete_cgr_smp_call, cgr, true);
                 preempt_enable();
                 return;
         }
-out:
+
         qman_delete_cgr(cgr);
         preempt_enable();
 }
diff --git a/drivers/soc/imx/gpc.c b/drivers/soc/imx/gpc.c
index 53f7275d6cbd..750f93197411 100644
--- a/drivers/soc/imx/gpc.c
+++ b/drivers/soc/imx/gpc.c
@@ -348,7 +348,7 @@ static int imx_gpc_old_dt_init(struct device *dev, struct regmap *regmap,
                 if (i == 1) {
                         domain->supply = devm_regulator_get(dev, "pu");
                         if (IS_ERR(domain->supply))
-                                return PTR_ERR(domain->supply);;
+                                return PTR_ERR(domain->supply);
 
                         ret = imx_pgc_get_clocks(dev, domain);
                         if (ret)
@@ -470,13 +470,21 @@ static int imx_gpc_probe(struct platform_device *pdev)
 
 static int imx_gpc_remove(struct platform_device *pdev)
 {
+        struct device_node *pgc_node;
         int ret;
 
+        pgc_node = of_get_child_by_name(pdev->dev.of_node, "pgc");
+
+        /* bail out if DT too old and doesn't provide the necessary info */
+        if (!of_property_read_bool(pdev->dev.of_node, "#power-domain-cells") &&
+            !pgc_node)
+                return 0;
+
         /*
          * If the old DT binding is used the toplevel driver needs to
          * de-register the power domains
          */
-        if (!of_get_child_by_name(pdev->dev.of_node, "pgc")) {
+        if (!pgc_node) {
                 of_genpd_del_provider(pdev->dev.of_node);
 
                 ret = pm_genpd_remove(&imx_gpc_domains[GPC_PGC_DOMAIN_PU].base);
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index bbdc53b686dd..86580b6df33d 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -326,24 +326,23 @@ static loff_t ashmem_llseek(struct file *file, loff_t offset, int origin)
         mutex_lock(&ashmem_mutex);
 
         if (asma->size == 0) {
-                ret = -EINVAL;
-                goto out;
+                mutex_unlock(&ashmem_mutex);
+                return -EINVAL;
         }
 
         if (!asma->file) {
-                ret = -EBADF;
-                goto out;
+                mutex_unlock(&ashmem_mutex);
+                return -EBADF;
         }
 
+        mutex_unlock(&ashmem_mutex);
+
         ret = vfs_llseek(asma->file, offset, origin);
         if (ret < 0)
-                goto out;
+                return ret;
 
         /** Copy f_pos from backing file, since f_ops->llseek() sets it */
         file->f_pos = asma->file->f_pos;
-
-out:
-        mutex_unlock(&ashmem_mutex);
         return ret;
 }
 
@@ -702,30 +701,30 @@ static int ashmem_pin_unpin(struct ashmem_area *asma, unsigned long cmd,
         size_t pgstart, pgend;
         int ret = -EINVAL;
 
-        if (unlikely(!asma->file))
-                return -EINVAL;
-
         if (unlikely(copy_from_user(&pin, p, sizeof(pin))))
                 return -EFAULT;
 
+        mutex_lock(&ashmem_mutex);
+
+        if (unlikely(!asma->file))
+                goto out_unlock;
+
         /* per custom, you can pass zero for len to mean "everything onward" */
         if (!pin.len)
                 pin.len = PAGE_ALIGN(asma->size) - pin.offset;
 
         if (unlikely((pin.offset | pin.len) & ~PAGE_MASK))
-                return -EINVAL;
+                goto out_unlock;
 
         if (unlikely(((__u32)-1) - pin.offset < pin.len))
-                return -EINVAL;
+                goto out_unlock;
 
         if (unlikely(PAGE_ALIGN(asma->size) < pin.offset + pin.len))
-                return -EINVAL;
+                goto out_unlock;
 
         pgstart = pin.offset / PAGE_SIZE;
         pgend = pgstart + (pin.len / PAGE_SIZE) - 1;
 
-        mutex_lock(&ashmem_mutex);
-
         switch (cmd) {
         case ASHMEM_PIN:
                 ret = ashmem_pin(asma, pgstart, pgend);
@@ -738,6 +737,7 @@ static int ashmem_pin_unpin(struct ashmem_area *asma, unsigned long cmd,
                 break;
         }
 
+out_unlock:
         mutex_unlock(&ashmem_mutex);
 
         return ret;
diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c
index 94e06925c712..49718c96bf9e 100644
--- a/drivers/staging/android/ion/ion_cma_heap.c
+++ b/drivers/staging/android/ion/ion_cma_heap.c
@@ -12,6 +12,7 @@
 #include <linux/err.h>
 #include <linux/cma.h>
 #include <linux/scatterlist.h>
+#include <linux/highmem.h>
 
 #include "ion.h"
 
@@ -42,6 +43,22 @@ static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer,
         if (!pages)
                 return -ENOMEM;
 
+        if (PageHighMem(pages)) {
+                unsigned long nr_clear_pages = nr_pages;
+                struct page *page = pages;
+
+                while (nr_clear_pages > 0) {
+                        void *vaddr = kmap_atomic(page);
+
+                        memset(vaddr, 0, PAGE_SIZE);
+                        kunmap_atomic(vaddr);
+                        page++;
+                        nr_clear_pages--;
+                }
+        } else {
+                memset(page_address(pages), 0, size);
+        }
+
         table = kmalloc(sizeof(*table), GFP_KERNEL);
         if (!table)
                 goto err;
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index e618a87521a3..9d733471ca2e 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -475,8 +475,7 @@ unsigned int comedi_nsamples_left(struct comedi_subdevice *s,
         struct comedi_cmd *cmd = &async->cmd;
 
         if (cmd->stop_src == TRIG_COUNT) {
-                unsigned int nscans = nsamples / cmd->scan_end_arg;
-                unsigned int scans_left = __comedi_nscans_left(s, nscans);
+                unsigned int scans_left = __comedi_nscans_left(s, cmd->stop_arg);
                 unsigned int scan_pos =
                     comedi_bytes_to_samples(s, async->scan_progress);
                 unsigned long long samples_left = 0;
diff --git a/drivers/staging/fsl-mc/bus/Kconfig b/drivers/staging/fsl-mc/bus/Kconfig
index 1f9100049176..b35ef7ee6901 100644
--- a/drivers/staging/fsl-mc/bus/Kconfig
+++ b/drivers/staging/fsl-mc/bus/Kconfig
@@ -7,7 +7,7 @@
 
 config FSL_MC_BUS
         bool "QorIQ DPAA2 fsl-mc bus driver"
-        depends on OF && (ARCH_LAYERSCAPE || (COMPILE_TEST && (ARM || ARM64 || X86 || PPC)))
+        depends on OF && (ARCH_LAYERSCAPE || (COMPILE_TEST && (ARM || ARM64 || X86_LOCAL_APIC || PPC)))
         select GENERIC_MSI_IRQ_DOMAIN
         help
           Driver to enable the bus infrastructure for the QorIQ DPAA2
diff --git a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
index 5064d5ddf581..fc2013aade51 100644
--- a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
+++ b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
@@ -73,6 +73,8 @@ static int __init its_fsl_mc_msi_init(void)
 
         for (np = of_find_matching_node(NULL, its_device_id); np;
              np = of_find_matching_node(np, its_device_id)) {
+                if (!of_device_is_available(np))
+                        continue;
                 if (!of_property_read_bool(np, "msi-controller"))
                         continue;
 
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index f01595593ce2..425e8b82533b 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -141,6 +141,8 @@
 #define AD7192_GPOCON_P1DAT     BIT(1) /* P1 state */
 #define AD7192_GPOCON_P0DAT     BIT(0) /* P0 state */
 
+#define AD7192_EXT_FREQ_MHZ_MIN 2457600
+#define AD7192_EXT_FREQ_MHZ_MAX 5120000
 #define AD7192_INT_FREQ_MHZ     4915200
 
 /* NOTE:
@@ -218,6 +220,12 @@ static int ad7192_calibrate_all(struct ad7192_state *st)
                                 ARRAY_SIZE(ad7192_calib_arr));
 }
 
+static inline bool ad7192_valid_external_frequency(u32 freq)
+{
+        return (freq >= AD7192_EXT_FREQ_MHZ_MIN &&
+                freq <= AD7192_EXT_FREQ_MHZ_MAX);
+}
+
 static int ad7192_setup(struct ad7192_state *st,
                         const struct ad7192_platform_data *pdata)
 {
@@ -243,17 +251,20 @@ static int ad7192_setup(struct ad7192_state *st,
                          id);
 
         switch (pdata->clock_source_sel) {
-        case AD7192_CLK_EXT_MCLK1_2:
-        case AD7192_CLK_EXT_MCLK2:
-                st->mclk = AD7192_INT_FREQ_MHZ;
-                break;
         case AD7192_CLK_INT:
         case AD7192_CLK_INT_CO:
-                if (pdata->ext_clk_hz)
-                        st->mclk = pdata->ext_clk_hz;
-                else
-                        st->mclk = AD7192_INT_FREQ_MHZ;
+                st->mclk = AD7192_INT_FREQ_MHZ;
                 break;
+        case AD7192_CLK_EXT_MCLK1_2:
+        case AD7192_CLK_EXT_MCLK2:
+                if (ad7192_valid_external_frequency(pdata->ext_clk_hz)) {
+                        st->mclk = pdata->ext_clk_hz;
+                        break;
+                }
+                dev_err(&st->sd.spi->dev, "Invalid frequency setting %u\n",
+                        pdata->ext_clk_hz);
+                ret = -EINVAL;
+                goto out;
         default:
                 ret = -EINVAL;
                 goto out;
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 2b28fb9c0048..3bcf49466361 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -648,8 +648,6 @@ static int ad5933_register_ring_funcs_and_init(struct iio_dev *indio_dev)
         /* Ring buffer functions - here trigger setup related */
         indio_dev->setup_ops = &ad5933_ring_setup_ops;
 
-        indio_dev->modes |= INDIO_BUFFER_HARDWARE;
-
         return 0;
 }
 
@@ -762,7 +760,7 @@ static int ad5933_probe(struct i2c_client *client,
         indio_dev->dev.parent = &client->dev;
         indio_dev->info = &ad5933_info;
         indio_dev->name = id->name;
-        indio_dev->modes = INDIO_DIRECT_MODE;
+        indio_dev->modes = (INDIO_BUFFER_SOFTWARE | INDIO_DIRECT_MODE);
         indio_dev->channels = ad5933_channels;
         indio_dev->num_channels = ARRAY_SIZE(ad5933_channels);
 
diff --git a/drivers/staging/ncpfs/ncplib_kernel.c b/drivers/staging/ncpfs/ncplib_kernel.c
index 804adfebba2f..3e047eb4cc7c 100644
--- a/drivers/staging/ncpfs/ncplib_kernel.c
+++ b/drivers/staging/ncpfs/ncplib_kernel.c
@@ -981,6 +981,10 @@ ncp_read_kernel(struct ncp_server *server, const char *file_id,
                 goto out;
         }
         *bytes_read = ncp_reply_be16(server, 0);
+        if (*bytes_read > to_read) {
+                result = -EINVAL;
+                goto out;
+        }
         source = ncp_reply_data(server, 2 + (offset & 1));
 
         memcpy(target, source, *bytes_read);
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 5c0e59e8fe46..cbe98bc2b998 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2180,6 +2180,12 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
                                 }
                                 if (tty_hung_up_p(file))
                                         break;
+                                /*
+                                 * Abort readers for ttys which never actually
+                                 * get hung up.  See __tty_hangup().
+                                 */
+                                if (test_bit(TTY_HUPPING, &tty->flags))
+                                        break;
                                 if (!timeout)
                                         break;
                                 if (file->f_flags & O_NONBLOCK) {
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 54adf8d56350..a93f77ab3da0 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -3387,11 +3387,9 @@ static int serial_pci_is_class_communication(struct pci_dev *dev)
         /*
          * If it is not a communications device or the programming
          * interface is greater than 6, give up.
-         *
-         * (Should we try to make guesses for multiport serial devices
-         * later?)
          */
         if ((((dev->class >> 8) != PCI_CLASS_COMMUNICATION_SERIAL) &&
+             ((dev->class >> 8) != PCI_CLASS_COMMUNICATION_MULTISERIAL) &&
              ((dev->class >> 8) != PCI_CLASS_COMMUNICATION_MODEM)) ||
             (dev->class & 0xff) > 6)
                 return -ENODEV;
@@ -3428,6 +3426,12 @@ serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
 {
         int num_iomem, num_port, first_port = -1, i;
 
+        /*
+         * Should we try to make guesses for multiport serial devices later?
+         */
+        if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_MULTISERIAL)
+                return -ENODEV;
+
         num_iomem = num_port = 0;
         for (i = 0; i < PCI_NUM_BAR_RESOURCES; i++) {
                 if (pci_resource_flags(dev, i) & IORESOURCE_IO) {
@@ -4699,6 +4703,17 @@ static const struct pci_device_id serial_pci_tbl[] = {
                 PCI_ANY_ID, PCI_ANY_ID, 0, 0,    /* 135a.0dc0 */
                 pbn_b2_4_115200 },
         /*
+         * BrainBoxes UC-260
+         */
+        {       PCI_VENDOR_ID_INTASHIELD, 0x0D21,
+                PCI_ANY_ID, PCI_ANY_ID,
+                PCI_CLASS_COMMUNICATION_MULTISERIAL << 8, 0xffff00,
+                pbn_b2_4_115200 },
+        {       PCI_VENDOR_ID_INTASHIELD, 0x0E34,
+                PCI_ANY_ID, PCI_ANY_ID,
+                 PCI_CLASS_COMMUNICATION_MULTISERIAL << 8, 0xffff00,
+                pbn_b2_4_115200 },
+        /*
          * Perle PCI-RAS cards
          */
         {       PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030,
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index df46a9e88c34..e287fe8f10fc 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1734,6 +1734,7 @@ static void atmel_get_ip_name(struct uart_port *port)
                 switch (version) {
                 case 0x302:
                 case 0x10213:
+                case 0x10302:
                         dev_dbg(port->dev, "This version is usart\n");
                         atmel_port->has_frac_baudrate = true;
                         atmel_port->has_hw_timer = true;
diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index 870e84fb6e39..a24278380fec 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -245,11 +245,12 @@ int __init of_setup_earlycon(const struct earlycon_id *match,
         }
         port->mapbase = addr;
         port->uartclk = BASE_BAUD * 16;
-        port->membase = earlycon_map(port->mapbase, SZ_4K);
 
         val = of_get_flat_dt_prop(node, "reg-offset", NULL);
         if (val)
                 port->mapbase += be32_to_cpu(*val);
+        port->membase = earlycon_map(port->mapbase, SZ_4K);
+
         val = of_get_flat_dt_prop(node, "reg-shift", NULL);
         if (val)
                 port->regshift = be32_to_cpu(*val);
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 1d7ca382bc12..a33c685af990 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -2093,7 +2093,7 @@ static int serial_imx_probe(struct platform_device *pdev)
         uart_get_rs485_mode(&pdev->dev, &sport->port.rs485);
 
         if (sport->port.rs485.flags & SER_RS485_ENABLED &&
-            (!sport->have_rtscts || !sport->have_rtsgpio))
+            (!sport->have_rtscts && !sport->have_rtsgpio))
                 dev_err(&pdev->dev, "no RTS control, disabling rs485\n");
 
         imx_rs485_config(&sport->port, &sport->port.rs485);
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index c8dde56b532b..35b9201db3b4 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1144,6 +1144,8 @@ static int uart_do_autoconfig(struct tty_struct *tty,struct uart_state *state)
                 uport->ops->config_port(uport, flags);
 
                 ret = uart_startup(tty, state, 1);
+                if (ret == 0)
+                        tty_port_set_initialized(port, true);
                 if (ret > 0)
                         ret = 0;
         }
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 7257c078e155..44adf9db38f8 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -885,6 +885,8 @@ static void sci_receive_chars(struct uart_port *port)
                 /* Tell the rest of the system the news. New characters! */
                 tty_flip_buffer_push(tport);
         } else {
+                /* TTY buffers full; read from RX reg to prevent lockup */
+                serial_port_in(port, SCxRDR);
                 serial_port_in(port, SCxSR); /* dummy read */
                 sci_clear_SCxSR(port, SCxSR_RDxF_CLEAR(port));
         }
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index eb9133b472f4..63114ea35ec1 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -586,6 +586,14 @@ static void __tty_hangup(struct tty_struct *tty, int exit_session)
                 return;
         }
 
+        /*
+         * Some console devices aren't actually hung up for technical and
+         * historical reasons, which can lead to indefinite interruptible
+         * sleep in n_tty_read().  The following explicitly tells
+         * n_tty_read() to abort readers.
+         */
+        set_bit(TTY_HUPPING, &tty->flags);
+
         /* inuse_filps is protected by the single tty lock,
            this really needs to change if we want to flush the
            workqueue with the lock held */
@@ -640,6 +648,7 @@ static void __tty_hangup(struct tty_struct *tty, int exit_session)
          * from the ldisc side, which is now guaranteed.
          */
         set_bit(TTY_HUPPED, &tty->flags);
+        clear_bit(TTY_HUPPING, &tty->flags);
         tty_unlock(tty);
 
         if (f)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 88b902c525d7..b4e57c5a8bba 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1727,7 +1727,7 @@ static void reset_terminal(struct vc_data *vc, int do_clear)
         default_attr(vc);
         update_attr(vc);
 
-        vc->vc_tab_stop[0]      = 0x01010100;
+        vc->vc_tab_stop[0]      =
         vc->vc_tab_stop[1]      =
         vc->vc_tab_stop[2]      =
         vc->vc_tab_stop[3]      =
@@ -1771,7 +1771,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
                 vc->vc_pos -= (vc->vc_x << 1);
                 while (vc->vc_x < vc->vc_cols - 1) {
                         vc->vc_x++;
-                        if (vc->vc_tab_stop[vc->vc_x >> 5] & (1 << (vc->vc_x & 31)))
+                        if (vc->vc_tab_stop[7 & (vc->vc_x >> 5)] & (1 << (vc->vc_x & 31)))
                                 break;
                 }
                 vc->vc_pos += (vc->vc_x << 1);
@@ -1831,7 +1831,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
                         lf(vc);
                         return;
                 case 'H':
-                        vc->vc_tab_stop[vc->vc_x >> 5] |= (1 << (vc->vc_x & 31));
+                        vc->vc_tab_stop[7 & (vc->vc_x >> 5)] |= (1 << (vc->vc_x & 31));
                         return;
                 case 'Z':
                         respond_ID(tty);
@@ -2024,7 +2024,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
                         return;
                 case 'g':
                         if (!vc->vc_par[0])
-                                vc->vc_tab_stop[vc->vc_x >> 5] &= ~(1 << (vc->vc_x & 31));
+                                vc->vc_tab_stop[7 & (vc->vc_x >> 5)] &= ~(1 << (vc->vc_x & 31));
                         else if (vc->vc_par[0] == 3) {
                                 vc->vc_tab_stop[0] =
                                         vc->vc_tab_stop[1] =
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index f699abab1787..148f3ee70286 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -19,6 +19,12 @@ config USB_EHCI_BIG_ENDIAN_MMIO
 config USB_EHCI_BIG_ENDIAN_DESC
         bool
 
+config USB_UHCI_BIG_ENDIAN_MMIO
+        bool
+
+config USB_UHCI_BIG_ENDIAN_DESC
+        bool
+
 menuconfig USB_SUPPORT
         bool "USB support"
         depends on HAS_IOMEM
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 06b3b54a0e68..7b366a6c0b49 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -174,6 +174,7 @@ static int acm_wb_alloc(struct acm *acm)
                 wb = &acm->wb[wbn];
                 if (!wb->use) {
                         wb->use = 1;
+                        wb->len = 0;
                         return wbn;
                 }
                 wbn = (wbn + 1) % ACM_NW;
@@ -805,16 +806,18 @@ static int acm_tty_write(struct tty_struct *tty,
 static void acm_tty_flush_chars(struct tty_struct *tty)
 {
         struct acm *acm = tty->driver_data;
-        struct acm_wb *cur = acm->putbuffer;
+        struct acm_wb *cur;
         int err;
         unsigned long flags;
 
+        spin_lock_irqsave(&acm->write_lock, flags);
+
+        cur = acm->putbuffer;
         if (!cur) /* nothing to do */
-                return;
+                goto out;
 
         acm->putbuffer = NULL;
         err = usb_autopm_get_interface_async(acm->control);
-        spin_lock_irqsave(&acm->write_lock, flags);
         if (err < 0) {
                 cur->use = 0;
                 acm->putbuffer = cur;
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index c64cf6c4a83d..0c11d40a12bc 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -151,6 +151,10 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
 
         ret = usb_internal_control_msg(dev, pipe, dr, data, size, timeout);
 
+        /* Linger a bit, prior to the next control message. */
+        if (dev->quirks & USB_QUIRK_DELAY_CTRL_MSG)
+                msleep(200);
+
         kfree(dr);
 
         return ret;
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 4024926c1d68..54b019e267c5 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -226,8 +226,12 @@ static const struct usb_device_id usb_quirk_list[] = {
         { USB_DEVICE(0x1a0a, 0x0200), .driver_info =
                         USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+        /* Corsair K70 RGB */
+        { USB_DEVICE(0x1b1c, 0x1b13), .driver_info = USB_QUIRK_DELAY_INIT },
+
         /* Corsair Strafe RGB */
-        { USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT },
+        { USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT |
+          USB_QUIRK_DELAY_CTRL_MSG },
 
         /* Corsair K70 LUX */
         { USB_DEVICE(0x1b1c, 0x1b36), .driver_info = USB_QUIRK_DELAY_INIT },
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index e4c3ce0de5de..5bcad1d869b5 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -1917,7 +1917,9 @@ static void dwc2_hsotg_program_zlp(struct dwc2_hsotg *hsotg,
                 /* Not specific buffer needed for ep0 ZLP */
                 dma_addr_t dma = hs_ep->desc_list_dma;
 
-                dwc2_gadget_set_ep0_desc_chain(hsotg, hs_ep);
+                if (!index)
+                        dwc2_gadget_set_ep0_desc_chain(hsotg, hs_ep);
+
                 dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, dma, 0);
         } else {
                 dwc2_writel(DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |
@@ -2974,9 +2976,13 @@ static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx,
         if (ints & DXEPINT_STSPHSERCVD) {
                 dev_dbg(hsotg->dev, "%s: StsPhseRcvd\n", __func__);
 
-                /* Move to STATUS IN for DDMA */
-                if (using_desc_dma(hsotg))
-                        dwc2_hsotg_ep0_zlp(hsotg, true);
+                /* Safety check EP0 state when STSPHSERCVD asserted */
+                if (hsotg->ep0_state == DWC2_EP0_DATA_OUT) {
+                        /* Move to STATUS IN for DDMA */
+                        if (using_desc_dma(hsotg))
+                                dwc2_hsotg_ep0_zlp(hsotg, true);
+                }
+
         }
 
         if (ints & DXEPINT_BACK2BACKSETUP)
@@ -3375,12 +3381,6 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
         dwc2_writel(dwc2_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) |
                DXEPCTL_USBACTEP, hsotg->regs + DIEPCTL0);
 
-        dwc2_hsotg_enqueue_setup(hsotg);
-
-        dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",
-                dwc2_readl(hsotg->regs + DIEPCTL0),
-                dwc2_readl(hsotg->regs + DOEPCTL0));
-
         /* clear global NAKs */
         val = DCTL_CGOUTNAK | DCTL_CGNPINNAK;
         if (!is_usb_reset)
@@ -3391,6 +3391,12 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
         mdelay(3);
 
         hsotg->lx_state = DWC2_L0;
+
+        dwc2_hsotg_enqueue_setup(hsotg);
+
+        dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",
+                dwc2_readl(hsotg->regs + DIEPCTL0),
+                dwc2_readl(hsotg->regs + DOEPCTL0));
 }
 
 static void dwc2_hsotg_core_disconnect(struct dwc2_hsotg *hsotg)
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index 03fd20f0b496..c4a47496d2fb 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -137,7 +137,7 @@ static void dwc2_set_stm32f4x9_fsotg_params(struct dwc2_hsotg *hsotg)
         p->activate_stm_fs_transceiver = true;
 }
 
-static void dwc2_set_stm32f7xx_hsotg_params(struct dwc2_hsotg *hsotg)
+static void dwc2_set_stm32f7_hsotg_params(struct dwc2_hsotg *hsotg)
 {
         struct dwc2_core_params *p = &hsotg->params;
 
@@ -164,8 +164,8 @@ const struct of_device_id dwc2_of_match_table[] = {
         { .compatible = "st,stm32f4x9-fsotg",
           .data = dwc2_set_stm32f4x9_fsotg_params },
         { .compatible = "st,stm32f4x9-hsotg" },
-        { .compatible = "st,stm32f7xx-hsotg",
-          .data = dwc2_set_stm32f7xx_hsotg_params },
+        { .compatible = "st,stm32f7-hsotg",
+          .data = dwc2_set_stm32f7_hsotg_params },
         {},
 };
 MODULE_DEVICE_TABLE(of, dwc2_of_match_table);
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index ade2ab00d37a..e94bf91cc58a 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -100,6 +100,8 @@ static void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode)
         reg &= ~(DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_OTG));
         reg |= DWC3_GCTL_PRTCAPDIR(mode);
         dwc3_writel(dwc->regs, DWC3_GCTL, reg);
+
+        dwc->current_dr_role = mode;
 }
 
 static void __dwc3_set_mode(struct work_struct *work)
@@ -133,8 +135,6 @@ static void __dwc3_set_mode(struct work_struct *work)
 
         dwc3_set_prtcap(dwc, dwc->desired_dr_role);
 
-        dwc->current_dr_role = dwc->desired_dr_role;
-
         spin_unlock_irqrestore(&dwc->lock, flags);
 
         switch (dwc->desired_dr_role) {
@@ -175,7 +175,7 @@ void dwc3_set_mode(struct dwc3 *dwc, u32 mode)
         dwc->desired_dr_role = mode;
         spin_unlock_irqrestore(&dwc->lock, flags);
 
-        queue_work(system_power_efficient_wq, &dwc->drd_work);
+        queue_work(system_freezable_wq, &dwc->drd_work);
 }
 
 u32 dwc3_core_fifo_space(struct dwc3_ep *dep, u8 type)
@@ -219,7 +219,7 @@ static int dwc3_core_soft_reset(struct dwc3 *dwc)
          * XHCI driver will reset the host block. If dwc3 was configured for
          * host-only mode, then we can return early.
          */
-        if (dwc->dr_mode == USB_DR_MODE_HOST)
+        if (dwc->current_dr_role == DWC3_GCTL_PRTCAP_HOST)
                 return 0;
 
         reg = dwc3_readl(dwc->regs, DWC3_DCTL);
@@ -234,6 +234,9 @@ static int dwc3_core_soft_reset(struct dwc3 *dwc)
                 udelay(1);
         } while (--retries);
 
+        phy_exit(dwc->usb3_generic_phy);
+        phy_exit(dwc->usb2_generic_phy);
+
         return -ETIMEDOUT;
 }
 
@@ -483,6 +486,22 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc)
         parms->hwparams8 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS8);
 }
 
+static int dwc3_core_ulpi_init(struct dwc3 *dwc)
+{
+        int intf;
+        int ret = 0;
+
+        intf = DWC3_GHWPARAMS3_HSPHY_IFC(dwc->hwparams.hwparams3);
+
+        if (intf == DWC3_GHWPARAMS3_HSPHY_IFC_ULPI ||
+            (intf == DWC3_GHWPARAMS3_HSPHY_IFC_UTMI_ULPI &&
+             dwc->hsphy_interface &&
+             !strncmp(dwc->hsphy_interface, "ulpi", 4)))
+                ret = dwc3_ulpi_init(dwc);
+
+        return ret;
+}
+
 /**
  * dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core
  * @dwc: Pointer to our controller context structure
@@ -494,7 +513,6 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc)
 static int dwc3_phy_setup(struct dwc3 *dwc)
 {
         u32 reg;
-        int ret;
 
         reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
 
@@ -565,9 +583,6 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
                 }
                 /* FALLTHROUGH */
         case DWC3_GHWPARAMS3_HSPHY_IFC_ULPI:
-                ret = dwc3_ulpi_init(dwc);
-                if (ret)
-                        return ret;
                 /* FALLTHROUGH */
         default:
                 break;
@@ -724,6 +739,7 @@ static void dwc3_core_setup_global_control(struct dwc3 *dwc)
 }
 
 static int dwc3_core_get_phy(struct dwc3 *dwc);
+static int dwc3_core_ulpi_init(struct dwc3 *dwc);
 
 /**
  * dwc3_core_init - Low-level initialization of DWC3 Core
@@ -755,17 +771,27 @@ static int dwc3_core_init(struct dwc3 *dwc)
                         dwc->maximum_speed = USB_SPEED_HIGH;
         }
 
-        ret = dwc3_core_get_phy(dwc);
+        ret = dwc3_phy_setup(dwc);
         if (ret)
                 goto err0;
 
-        ret = dwc3_core_soft_reset(dwc);
-        if (ret)
-                goto err0;
+        if (!dwc->ulpi_ready) {
+                ret = dwc3_core_ulpi_init(dwc);
+                if (ret)
+                        goto err0;
+                dwc->ulpi_ready = true;
+        }
 
-        ret = dwc3_phy_setup(dwc);
+        if (!dwc->phys_ready) {
+                ret = dwc3_core_get_phy(dwc);
+                if (ret)
+                        goto err0a;
+                dwc->phys_ready = true;
+        }
+
+        ret = dwc3_core_soft_reset(dwc);
         if (ret)
-                goto err0;
+                goto err0a;
 
         dwc3_core_setup_global_control(dwc);
         dwc3_core_num_eps(dwc);
@@ -838,6 +864,9 @@ err1:
         phy_exit(dwc->usb2_generic_phy);
         phy_exit(dwc->usb3_generic_phy);
 
+err0a:
+        dwc3_ulpi_exit(dwc);
+
 err0:
         return ret;
 }
@@ -916,7 +945,6 @@ static int dwc3_core_init_mode(struct dwc3 *dwc)
 
         switch (dwc->dr_mode) {
         case USB_DR_MODE_PERIPHERAL:
-                dwc->current_dr_role = DWC3_GCTL_PRTCAP_DEVICE;
                 dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE);
 
                 if (dwc->usb2_phy)
@@ -932,7 +960,6 @@ static int dwc3_core_init_mode(struct dwc3 *dwc)
                 }
                 break;
         case USB_DR_MODE_HOST:
-                dwc->current_dr_role = DWC3_GCTL_PRTCAP_HOST;
                 dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST);
 
                 if (dwc->usb2_phy)
@@ -1234,7 +1261,6 @@ err4:
 
 err3:
         dwc3_free_event_buffers(dwc);
-        dwc3_ulpi_exit(dwc);
 
 err2:
         pm_runtime_allow(&pdev->dev);
@@ -1284,7 +1310,7 @@ static int dwc3_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-static int dwc3_suspend_common(struct dwc3 *dwc)
+static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg)
 {
         unsigned long   flags;
 
@@ -1296,6 +1322,10 @@ static int dwc3_suspend_common(struct dwc3 *dwc)
                 dwc3_core_exit(dwc);
                 break;
         case DWC3_GCTL_PRTCAP_HOST:
+                /* do nothing during host runtime_suspend */
+                if (!PMSG_IS_AUTO(msg))
+                        dwc3_core_exit(dwc);
+                break;
         default:
                 /* do nothing */
                 break;
@@ -1304,7 +1334,7 @@ static int dwc3_suspend_common(struct dwc3 *dwc)
         return 0;
 }
 
-static int dwc3_resume_common(struct dwc3 *dwc)
+static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg)
 {
         unsigned long   flags;
         int             ret;
@@ -1320,6 +1350,13 @@ static int dwc3_resume_common(struct dwc3 *dwc)
                 spin_unlock_irqrestore(&dwc->lock, flags);
                 break;
         case DWC3_GCTL_PRTCAP_HOST:
+                /* nothing to do on host runtime_resume */
+                if (!PMSG_IS_AUTO(msg)) {
+                        ret = dwc3_core_init(dwc);
+                        if (ret)
+                                return ret;
+                }
+                break;
         default:
                 /* do nothing */
                 break;
@@ -1331,12 +1368,11 @@ static int dwc3_resume_common(struct dwc3 *dwc)
 static int dwc3_runtime_checks(struct dwc3 *dwc)
 {
         switch (dwc->current_dr_role) {
-        case USB_DR_MODE_PERIPHERAL:
-        case USB_DR_MODE_OTG:
+        case DWC3_GCTL_PRTCAP_DEVICE:
                 if (dwc->connected)
                         return -EBUSY;
                 break;
-        case USB_DR_MODE_HOST:
+        case DWC3_GCTL_PRTCAP_HOST:
         default:
                 /* do nothing */
                 break;
@@ -1353,7 +1389,7 @@ static int dwc3_runtime_suspend(struct device *dev)
         if (dwc3_runtime_checks(dwc))
                 return -EBUSY;
 
-        ret = dwc3_suspend_common(dwc);
+        ret = dwc3_suspend_common(dwc, PMSG_AUTO_SUSPEND);
         if (ret)
                 return ret;
 
@@ -1369,7 +1405,7 @@ static int dwc3_runtime_resume(struct device *dev)
 
         device_init_wakeup(dev, false);
 
-        ret = dwc3_resume_common(dwc);
+        ret = dwc3_resume_common(dwc, PMSG_AUTO_RESUME);
         if (ret)
                 return ret;
 
@@ -1416,7 +1452,7 @@ static int dwc3_suspend(struct device *dev)
         struct dwc3     *dwc = dev_get_drvdata(dev);
         int             ret;
 
-        ret = dwc3_suspend_common(dwc);
+        ret = dwc3_suspend_common(dwc, PMSG_SUSPEND);
         if (ret)
                 return ret;
 
@@ -1432,7 +1468,7 @@ static int dwc3_resume(struct device *dev)
 
         pinctrl_pm_select_default_state(dev);
 
-        ret = dwc3_resume_common(dwc);
+        ret = dwc3_resume_common(dwc, PMSG_RESUME);
         if (ret)
                 return ret;
 
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 03c7aaaac926..860d2bc184d1 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -158,13 +158,15 @@
 #define DWC3_GDBGFIFOSPACE_TYPE(n)      (((n) << 5) & 0x1e0)
 #define DWC3_GDBGFIFOSPACE_SPACE_AVAILABLE(n) (((n) >> 16) & 0xffff)
 
-#define DWC3_TXFIFOQ            1
-#define DWC3_RXFIFOQ            3
-#define DWC3_TXREQQ             5
-#define DWC3_RXREQQ             7
-#define DWC3_RXINFOQ            9
-#define DWC3_DESCFETCHQ         13
-#define DWC3_EVENTQ             15
+#define DWC3_TXFIFOQ            0
+#define DWC3_RXFIFOQ            1
+#define DWC3_TXREQQ             2
+#define DWC3_RXREQQ             3
+#define DWC3_RXINFOQ            4
+#define DWC3_PSTATQ             5
+#define DWC3_DESCFETCHQ         6
+#define DWC3_EVENTQ             7
+#define DWC3_AUXEVENTQ          8
 
 /* Global RX Threshold Configuration Register */
 #define DWC3_GRXTHRCFG_MAXRXBURSTSIZE(n) (((n) & 0x1f) << 19)
@@ -795,7 +797,9 @@ struct dwc3_scratchpad_array {
  * @usb3_phy: pointer to USB3 PHY
  * @usb2_generic_phy: pointer to USB2 PHY
  * @usb3_generic_phy: pointer to USB3 PHY
+ * @phys_ready: flag to indicate that PHYs are ready
  * @ulpi: pointer to ulpi interface
+ * @ulpi_ready: flag to indicate that ULPI is initialized
  * @u2sel: parameter from Set SEL request.
  * @u2pel: parameter from Set SEL request.
  * @u1sel: parameter from Set SEL request.
@@ -893,7 +897,10 @@ struct dwc3 {
         struct phy              *usb2_generic_phy;
         struct phy              *usb3_generic_phy;
 
+        bool                    phys_ready;
+
         struct ulpi             *ulpi;
+        bool                    ulpi_ready;
 
         void __iomem            *regs;
         size_t                  regs_size;
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index 7ae0eefc7cc7..e54c3622eb28 100644
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -143,6 +143,7 @@ static int dwc3_of_simple_remove(struct platform_device *pdev)
                 clk_disable_unprepare(simple->clks[i]);
                 clk_put(simple->clks[i]);
         }
+        simple->num_clocks = 0;
 
         reset_control_assert(simple->resets);
         reset_control_put(simple->resets);
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index a4719e853b85..ed8b86517675 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -582,9 +582,25 @@ static int dwc3_omap_resume(struct device *dev)
         return 0;
 }
 
+static void dwc3_omap_complete(struct device *dev)
+{
+        struct dwc3_omap        *omap = dev_get_drvdata(dev);
+
+        if (extcon_get_state(omap->edev, EXTCON_USB))
+                dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
+        else
+                dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_OFF);
+
+        if (extcon_get_state(omap->edev, EXTCON_USB_HOST))
+                dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
+        else
+                dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_FLOAT);
+}
+
 static const struct dev_pm_ops dwc3_omap_dev_pm_ops = {
 
         SET_SYSTEM_SLEEP_PM_OPS(dwc3_omap_suspend, dwc3_omap_resume)
+        .complete = dwc3_omap_complete,
 };
 
 #define DEV_PM_OPS      (&dwc3_omap_dev_pm_ops)
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 9c2e4a17918e..18be31d5743a 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -854,7 +854,12 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
                 trb++;
                 trb->ctrl &= ~DWC3_TRB_CTRL_HWO;
                 trace_dwc3_complete_trb(ep0, trb);
-                ep0->trb_enqueue = 0;
+
+                if (r->direction)
+                        dwc->eps[1]->trb_enqueue = 0;
+                else
+                        dwc->eps[0]->trb_enqueue = 0;
+
                 dwc->ep0_bounced = false;
         }
 
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 616ef49ccb49..2bda4eb1e9ac 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2745,6 +2745,8 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc)
                 break;
         }
 
+        dwc->eps[1]->endpoint.maxpacket = dwc->gadget.ep0->maxpacket;
+
         /* Enable USB2 LPM Capability */
 
         if ((dwc->revision > DWC3_REVISION_194A) &&
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 8f2cf3baa19c..d2428a9e8900 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -1538,7 +1538,6 @@ ffs_fs_kill_sb(struct super_block *sb)
         if (sb->s_fs_info) {
                 ffs_release_dev(sb->s_fs_info);
                 ffs_data_closed(sb->s_fs_info);
-                ffs_data_put(sb->s_fs_info);
         }
 }
 
@@ -1855,44 +1854,20 @@ static int ffs_func_eps_enable(struct ffs_function *func)
 
         spin_lock_irqsave(&func->ffs->eps_lock, flags);
         while(count--) {
-                struct usb_endpoint_descriptor *ds;
-                struct usb_ss_ep_comp_descriptor *comp_desc = NULL;
-                int needs_comp_desc = false;
-                int desc_idx;
-
-                if (ffs->gadget->speed == USB_SPEED_SUPER) {
-                        desc_idx = 2;
-                        needs_comp_desc = true;
-                } else if (ffs->gadget->speed == USB_SPEED_HIGH)
-                        desc_idx = 1;
-                else
-                        desc_idx = 0;
-
-                /* fall-back to lower speed if desc missing for current speed */
-                do {
-                        ds = ep->descs[desc_idx];
-                } while (!ds && --desc_idx >= 0);
-
-                if (!ds) {
-                        ret = -EINVAL;
-                        break;
-                }
-
                 ep->ep->driver_data = ep;
-                ep->ep->desc = ds;
 
-                if (needs_comp_desc) {
-                        comp_desc = (struct usb_ss_ep_comp_descriptor *)(ds +
-                                        USB_DT_ENDPOINT_SIZE);
-                        ep->ep->maxburst = comp_desc->bMaxBurst + 1;
-                        ep->ep->comp_desc = comp_desc;
+                ret = config_ep_by_speed(func->gadget, &func->function, ep->ep);
+                if (ret) {
+                        pr_err("%s: config_ep_by_speed(%s) returned %d\n",
+                                        __func__, ep->ep->name, ret);
+                        break;
                 }
 
                 ret = usb_ep_enable(ep->ep);
                 if (likely(!ret)) {
                         epfile->ep = ep;
-                        epfile->in = usb_endpoint_dir_in(ds);
-                        epfile->isoc = usb_endpoint_xfer_isoc(ds);
+                        epfile->in = usb_endpoint_dir_in(ep->ep->desc);
+                        epfile->isoc = usb_endpoint_xfer_isoc(ep->ep->desc);
                 } else {
                         break;
                 }
@@ -2979,10 +2954,8 @@ static int _ffs_func_bind(struct usb_configuration *c,
         struct ffs_data *ffs = func->ffs;
 
         const int full = !!func->ffs->fs_descs_count;
-        const int high = gadget_is_dualspeed(func->gadget) &&
-                func->ffs->hs_descs_count;
-        const int super = gadget_is_superspeed(func->gadget) &&
-                func->ffs->ss_descs_count;
+        const int high = !!func->ffs->hs_descs_count;
+        const int super = !!func->ffs->ss_descs_count;
 
         int fs_len, hs_len, ss_len, ret, i;
         struct ffs_ep *eps_ptr;
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index 11fe788b4308..d2dc1f00180b 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -524,6 +524,8 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
                 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
                 return ret;
         }
+        iad_desc.bFirstInterface = ret;
+
         std_ac_if_desc.bInterfaceNumber = ret;
         uac2->ac_intf = ret;
         uac2->ac_alt = 0;
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig
index 1e9567091d86..0875d38476ee 100644
--- a/drivers/usb/gadget/udc/Kconfig
+++ b/drivers/usb/gadget/udc/Kconfig
@@ -274,7 +274,6 @@ config USB_SNP_UDC_PLAT
         tristate "Synopsys USB 2.0 Device controller"
         depends on USB_GADGET && OF && HAS_DMA
         depends on EXTCON || EXTCON=n
-        select USB_GADGET_DUALSPEED
         select USB_SNP_CORE
         default ARCH_BCM_IPROC
         help
diff --git a/drivers/usb/gadget/udc/bdc/bdc_pci.c b/drivers/usb/gadget/udc/bdc/bdc_pci.c
index 1e940f054cb8..6dbc489513cd 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_pci.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_pci.c
@@ -77,6 +77,7 @@ static int bdc_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
         if (ret) {
                 dev_err(&pci->dev,
                         "couldn't add resources to bdc device\n");
+                platform_device_put(bdc);
                 return ret;
         }
 
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 859d5b11ba4c..1f8b19d9cf97 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -180,8 +180,8 @@ EXPORT_SYMBOL_GPL(usb_ep_alloc_request);
 void usb_ep_free_request(struct usb_ep *ep,
                                        struct usb_request *req)
 {
-        ep->ops->free_request(ep, req);
         trace_usb_ep_free_request(ep, req, 0);
+        ep->ops->free_request(ep, req);
 }
 EXPORT_SYMBOL_GPL(usb_ep_free_request);
 
diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
index e5b4ee96c4bf..56b517a38865 100644
--- a/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -1305,7 +1305,7 @@ static void udc_reset_ep_queue(struct fsl_udc *udc, u8 pipe)
 {
         struct fsl_ep *ep = get_ep_by_pipe(udc, pipe);
 
-        if (ep->name)
+        if (ep->ep.name)
                 nuke(ep, -ESHUTDOWN);
 }
 
@@ -1693,7 +1693,7 @@ static void dtd_complete_irq(struct fsl_udc *udc)
                 curr_ep = get_ep_by_pipe(udc, i);
 
                 /* If the ep is configured */
-                if (curr_ep->name == NULL) {
+                if (!curr_ep->ep.name) {
                         WARNING("Invalid EP?");
                         continue;
                 }
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index 6e87af248367..409cde4e6a51 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -2410,7 +2410,7 @@ static int renesas_usb3_remove(struct platform_device *pdev)
         __renesas_usb3_ep_free_request(usb3->ep0_req);
         if (usb3->phy)
                 phy_put(usb3->phy);
-        pm_runtime_disable(usb3_to_dev(usb3));
+        pm_runtime_disable(&pdev->dev);
 
         return 0;
 }
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 6150bed7cfa8..4fcfb3084b36 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -633,14 +633,6 @@ config USB_UHCI_ASPEED
        bool
        default y if ARCH_ASPEED
 
-config USB_UHCI_BIG_ENDIAN_MMIO
-        bool
-        default y if SPARC_LEON
-
-config USB_UHCI_BIG_ENDIAN_DESC
-        bool
-        default y if SPARC_LEON
-
 config USB_FHCI_HCD
         tristate "Freescale QE USB Host Controller support"
         depends on OF_GPIO && QE_GPIO && QUICC_ENGINE
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index facafdf8fb95..d7641cbdee43 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -774,12 +774,12 @@ static struct urb *request_single_step_set_feature_urb(
         atomic_inc(&urb->use_count);
         atomic_inc(&urb->dev->urbnum);
         urb->setup_dma = dma_map_single(
-                        hcd->self.controller,
+                        hcd->self.sysdev,
                         urb->setup_packet,
                         sizeof(struct usb_ctrlrequest),
                         DMA_TO_DEVICE);
         urb->transfer_dma = dma_map_single(
-                        hcd->self.controller,
+                        hcd->self.sysdev,
                         urb->transfer_buffer,
                         urb->transfer_buffer_length,
                         DMA_FROM_DEVICE);
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 88158324dcae..327630405695 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -1188,10 +1188,10 @@ static int submit_single_step_set_feature(
          * 15 secs after the setup
          */
         if (is_setup) {
-                /* SETUP pid */
+                /* SETUP pid, and interrupt after SETUP completion */
                 qtd_fill(ehci, qtd, urb->setup_dma,
                                 sizeof(struct usb_ctrlrequest),
-                                token | (2 /* "setup" */ << 8), 8);
+                                QTD_IOC | token | (2 /* "setup" */ << 8), 8);
 
                 submit_async(ehci, urb, &qtd_list, GFP_ATOMIC);
                 return 0; /*Return now; we shall come back after 15 seconds*/
@@ -1228,12 +1228,8 @@ static int submit_single_step_set_feature(
         qtd_prev->hw_next = QTD_NEXT(ehci, qtd->qtd_dma);
         list_add_tail(&qtd->qtd_list, head);
 
-        /* dont fill any data in such packets */
-        qtd_fill(ehci, qtd, 0, 0, token, 0);
-
-        /* by default, enable interrupt on urb completion */
-        if (likely(!(urb->transfer_flags & URB_NO_INTERRUPT)))
-                qtd->hw_token |= cpu_to_hc32(ehci, QTD_IOC);
+        /* Interrupt after STATUS completion */
+        qtd_fill(ehci, qtd, 0, 0, token | QTD_IOC, 0);
 
         submit_async(ehci, urb, &qtd_list, GFP_KERNEL);
 
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index ee9676349333..d088c340e4d0 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -74,6 +74,7 @@ static const char	hcd_name [] = "ohci_hcd";
 
 #define STATECHANGE_DELAY       msecs_to_jiffies(300)
 #define IO_WATCHDOG_DELAY       msecs_to_jiffies(275)
+#define IO_WATCHDOG_OFF         0xffffff00
 
 #include "ohci.h"
 #include "pci-quirks.h"
@@ -231,7 +232,7 @@ static int ohci_urb_enqueue (
                 }
 
                 /* Start up the I/O watchdog timer, if it's not running */
-                if (!timer_pending(&ohci->io_watchdog) &&
+                if (ohci->prev_frame_no == IO_WATCHDOG_OFF &&
                                 list_empty(&ohci->eds_in_use) &&
                                 !(ohci->flags & OHCI_QUIRK_QEMU)) {
                         ohci->prev_frame_no = ohci_frame_no(ohci);
@@ -446,7 +447,8 @@ static int ohci_init (struct ohci_hcd *ohci)
         struct usb_hcd *hcd = ohci_to_hcd(ohci);
 
         /* Accept arbitrarily long scatter-gather lists */
-        hcd->self.sg_tablesize = ~0;
+        if (!(hcd->driver->flags & HCD_LOCAL_MEM))
+                hcd->self.sg_tablesize = ~0;
 
         if (distrust_firmware)
                 ohci->flags |= OHCI_QUIRK_HUB_POWER;
@@ -501,6 +503,7 @@ static int ohci_init (struct ohci_hcd *ohci)
                 return 0;
 
         timer_setup(&ohci->io_watchdog, io_watchdog_func, 0);
+        ohci->prev_frame_no = IO_WATCHDOG_OFF;
 
         ohci->hcca = dma_alloc_coherent (hcd->self.controller,
                         sizeof(*ohci->hcca), &ohci->hcca_dma, GFP_KERNEL);
@@ -730,7 +733,7 @@ static void io_watchdog_func(struct timer_list *t)
         u32             head;
         struct ed       *ed;
         struct td       *td, *td_start, *td_next;
-        unsigned        frame_no;
+        unsigned        frame_no, prev_frame_no = IO_WATCHDOG_OFF;
         unsigned long   flags;
 
         spin_lock_irqsave(&ohci->lock, flags);
@@ -835,7 +838,7 @@ static void io_watchdog_func(struct timer_list *t)
                         }
                 }
                 if (!list_empty(&ohci->eds_in_use)) {
-                        ohci->prev_frame_no = frame_no;
+                        prev_frame_no = frame_no;
                         ohci->prev_wdh_cnt = ohci->wdh_cnt;
                         ohci->prev_donehead = ohci_readl(ohci,
                                         &ohci->regs->donehead);
@@ -845,6 +848,7 @@ static void io_watchdog_func(struct timer_list *t)
         }
 
  done:
+        ohci->prev_frame_no = prev_frame_no;
         spin_unlock_irqrestore(&ohci->lock, flags);
 }
 
@@ -973,6 +977,7 @@ static void ohci_stop (struct usb_hcd *hcd)
         if (quirk_nec(ohci))
                 flush_work(&ohci->nec_work);
         del_timer_sync(&ohci->io_watchdog);
+        ohci->prev_frame_no = IO_WATCHDOG_OFF;
 
         ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
         ohci_usb_reset(ohci);
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index fb7aaa3b9d06..634f3c7bf774 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -311,8 +311,10 @@ static int ohci_bus_suspend (struct usb_hcd *hcd)
                 rc = ohci_rh_suspend (ohci, 0);
         spin_unlock_irq (&ohci->lock);
 
-        if (rc == 0)
+        if (rc == 0) {
                 del_timer_sync(&ohci->io_watchdog);
+                ohci->prev_frame_no = IO_WATCHDOG_OFF;
+        }
         return rc;
 }
 
diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c
index b2ec8c399363..4ccb85a67bb3 100644
--- a/drivers/usb/host/ohci-q.c
+++ b/drivers/usb/host/ohci-q.c
@@ -1019,6 +1019,8 @@ skip_ed:
                  * have modified this list.  normally it's just prepending
                  * entries (which we'd ignore), but paranoia won't hurt.
                  */
+                *last = ed->ed_next;
+                ed->ed_next = NULL;
                 modified = 0;
 
                 /* unlink urbs as requested, but rescan the list after
@@ -1077,21 +1079,22 @@ rescan_this:
                         goto rescan_this;
 
                 /*
-                 * If no TDs are queued, take ED off the ed_rm_list.
+                 * If no TDs are queued, ED is now idle.
                  * Otherwise, if the HC is running, reschedule.
-                 * If not, leave it on the list for further dequeues.
+                 * If the HC isn't running, add ED back to the
+                 * start of the list for later processing.
                  */
                 if (list_empty(&ed->td_list)) {
-                        *last = ed->ed_next;
-                        ed->ed_next = NULL;
                         ed->state = ED_IDLE;
                         list_del(&ed->in_use_list);
                 } else if (ohci->rh_state == OHCI_RH_RUNNING) {
-                        *last = ed->ed_next;
-                        ed->ed_next = NULL;
                         ed_schedule(ohci, ed);
                 } else {
-                        last = &ed->ed_next;
+                        ed->ed_next = ohci->ed_rm_list;
+                        ohci->ed_rm_list = ed;
+                        /* Don't loop on the same ED */
+                        if (last == &ohci->ed_rm_list)
+                                last = &ed->ed_next;
                 }
 
                 if (modified)
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 161536717025..67ad4bb6919a 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -66,6 +66,23 @@
 #define AX_INDXC                0x30
 #define AX_DATAC                0x34
 
+#define PT_ADDR_INDX            0xE8
+#define PT_READ_INDX            0xE4
+#define PT_SIG_1_ADDR           0xA520
+#define PT_SIG_2_ADDR           0xA521
+#define PT_SIG_3_ADDR           0xA522
+#define PT_SIG_4_ADDR           0xA523
+#define PT_SIG_1_DATA           0x78
+#define PT_SIG_2_DATA           0x56
+#define PT_SIG_3_DATA           0x34
+#define PT_SIG_4_DATA           0x12
+#define PT4_P1_REG              0xB521
+#define PT4_P2_REG              0xB522
+#define PT2_P1_REG              0xD520
+#define PT2_P2_REG              0xD521
+#define PT1_P1_REG              0xD522
+#define PT1_P2_REG              0xD523
+
 #define NB_PCIE_INDX_ADDR       0xe0
 #define NB_PCIE_INDX_DATA       0xe4
 #define PCIE_P_CNTL             0x10040
@@ -513,6 +530,98 @@ void usb_amd_dev_put(void)
 EXPORT_SYMBOL_GPL(usb_amd_dev_put);
 
 /*
+ * Check if port is disabled in BIOS on AMD Promontory host.
+ * BIOS Disabled ports may wake on connect/disconnect and need
+ * driver workaround to keep them disabled.
+ * Returns true if port is marked disabled.
+ */
+bool usb_amd_pt_check_port(struct device *device, int port)
+{
+        unsigned char value, port_shift;
+        struct pci_dev *pdev;
+        u16 reg;
+
+        pdev = to_pci_dev(device);
+        pci_write_config_word(pdev, PT_ADDR_INDX, PT_SIG_1_ADDR);
+
+        pci_read_config_byte(pdev, PT_READ_INDX, &value);
+        if (value != PT_SIG_1_DATA)
+                return false;
+
+        pci_write_config_word(pdev, PT_ADDR_INDX, PT_SIG_2_ADDR);
+
+        pci_read_config_byte(pdev, PT_READ_INDX, &value);
+        if (value != PT_SIG_2_DATA)
+                return false;
+
+        pci_write_config_word(pdev, PT_ADDR_INDX, PT_SIG_3_ADDR);
+
+        pci_read_config_byte(pdev, PT_READ_INDX, &value);
+        if (value != PT_SIG_3_DATA)
+                return false;
+
+        pci_write_config_word(pdev, PT_ADDR_INDX, PT_SIG_4_ADDR);
+
+        pci_read_config_byte(pdev, PT_READ_INDX, &value);
+        if (value != PT_SIG_4_DATA)
+                return false;
+
+        /* Check disabled port setting, if bit is set port is enabled */
+        switch (pdev->device) {
+        case 0x43b9:
+        case 0x43ba:
+        /*
+         * device is AMD_PROMONTORYA_4(0x43b9) or PROMONTORYA_3(0x43ba)
+         * PT4_P1_REG bits[7..1] represents USB2.0 ports 6 to 0
+         * PT4_P2_REG bits[6..0] represents ports 13 to 7
+         */
+                if (port > 6) {
+                        reg = PT4_P2_REG;
+                        port_shift = port - 7;
+                } else {
+                        reg = PT4_P1_REG;
+                        port_shift = port + 1;
+                }
+                break;
+        case 0x43bb:
+        /*
+         * device is AMD_PROMONTORYA_2(0x43bb)
+         * PT2_P1_REG bits[7..5] represents USB2.0 ports 2 to 0
+         * PT2_P2_REG bits[5..0] represents ports 9 to 3
+         */
+                if (port > 2) {
+                        reg = PT2_P2_REG;
+                        port_shift = port - 3;
+                } else {
+                        reg = PT2_P1_REG;
+                        port_shift = port + 5;
+                }
+                break;
+        case 0x43bc:
+        /*
+         * device is AMD_PROMONTORYA_1(0x43bc)
+         * PT1_P1_REG[7..4] represents USB2.0 ports 3 to 0
+         * PT1_P2_REG[5..0] represents ports 9 to 4
+         */
+                if (port > 3) {
+                        reg = PT1_P2_REG;
+                        port_shift = port - 4;
+                } else {
+                        reg = PT1_P1_REG;
+                        port_shift = port + 4;
+                }
+                break;
+        default:
+                return false;
+        }
+        pci_write_config_word(pdev, PT_ADDR_INDX, reg);
+        pci_read_config_byte(pdev, PT_READ_INDX, &value);
+
+        return !(value & BIT(port_shift));
+}
+EXPORT_SYMBOL_GPL(usb_amd_pt_check_port);
+
+/*
  * Make sure the controller is completely inactive, unable to
  * generate interrupts or do DMA.
  */
diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h
index b68dcb5dd0fd..4ca0d9b7e463 100644
--- a/drivers/usb/host/pci-quirks.h
+++ b/drivers/usb/host/pci-quirks.h
@@ -17,6 +17,7 @@ void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev);
 void usb_disable_xhci_ports(struct pci_dev *xhci_pdev);
 void sb800_prefetch(struct device *dev, int on);
 bool usb_xhci_needs_pci_reset(struct pci_dev *pdev);
+bool usb_amd_pt_check_port(struct device *device, int port);
 #else
 struct pci_dev;
 static inline void usb_amd_quirk_pll_disable(void) {}
@@ -25,6 +26,10 @@ static inline void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) {}
 static inline void usb_amd_dev_put(void) {}
 static inline void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) {}
 static inline void sb800_prefetch(struct device *dev, int on) {}
+static inline bool usb_amd_pt_check_port(struct device *device, int port)
+{
+        return false;
+}
 #endif  /* CONFIG_USB_PCI */
 
 #endif  /*  __LINUX_USB_PCI_QUIRKS_H  */
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index a1ab8acf39ba..c359bae7b754 100644
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -328,13 +328,14 @@ dbc_ep_do_queue(struct dbc_ep *dep, struct dbc_request *req)
 int dbc_ep_queue(struct dbc_ep *dep, struct dbc_request *req,
                  gfp_t gfp_flags)
 {
+        unsigned long           flags;
         struct xhci_dbc         *dbc = dep->dbc;
         int                     ret = -ESHUTDOWN;
 
-        spin_lock(&dbc->lock);
+        spin_lock_irqsave(&dbc->lock, flags);
         if (dbc->state == DS_CONFIGURED)
                 ret = dbc_ep_do_queue(dep, req);
-        spin_unlock(&dbc->lock);
+        spin_unlock_irqrestore(&dbc->lock, flags);
 
         mod_delayed_work(system_wq, &dbc->event_work, 0);
 
@@ -521,15 +522,16 @@ static void xhci_do_dbc_stop(struct xhci_hcd *xhci)
 static int xhci_dbc_start(struct xhci_hcd *xhci)
 {
         int                     ret;
+        unsigned long           flags;
         struct xhci_dbc         *dbc = xhci->dbc;
 
         WARN_ON(!dbc);
 
         pm_runtime_get_sync(xhci_to_hcd(xhci)->self.controller);
 
-        spin_lock(&dbc->lock);
+        spin_lock_irqsave(&dbc->lock, flags);
         ret = xhci_do_dbc_start(xhci);
-        spin_unlock(&dbc->lock);
+        spin_unlock_irqrestore(&dbc->lock, flags);
 
         if (ret) {
                 pm_runtime_put(xhci_to_hcd(xhci)->self.controller);
@@ -541,6 +543,7 @@ static int xhci_dbc_start(struct xhci_hcd *xhci)
 
 static void xhci_dbc_stop(struct xhci_hcd *xhci)
 {
+        unsigned long           flags;
         struct xhci_dbc         *dbc = xhci->dbc;
         struct dbc_port         *port = &dbc->port;
 
@@ -551,9 +554,9 @@ static void xhci_dbc_stop(struct xhci_hcd *xhci)
         if (port->registered)
                 xhci_dbc_tty_unregister_device(xhci);
 
-        spin_lock(&dbc->lock);
+        spin_lock_irqsave(&dbc->lock, flags);
         xhci_do_dbc_stop(xhci);
-        spin_unlock(&dbc->lock);
+        spin_unlock_irqrestore(&dbc->lock, flags);
 
         pm_runtime_put_sync(xhci_to_hcd(xhci)->self.controller);
 }
@@ -779,14 +782,15 @@ static void xhci_dbc_handle_events(struct work_struct *work)
         int                     ret;
         enum evtreturn          evtr;
         struct xhci_dbc         *dbc;
+        unsigned long           flags;
         struct xhci_hcd         *xhci;
 
         dbc = container_of(to_delayed_work(work), struct xhci_dbc, event_work);
         xhci = dbc->xhci;
 
-        spin_lock(&dbc->lock);
+        spin_lock_irqsave(&dbc->lock, flags);
         evtr = xhci_dbc_do_handle_events(dbc);
-        spin_unlock(&dbc->lock);
+        spin_unlock_irqrestore(&dbc->lock, flags);
 
         switch (evtr) {
         case EVT_GSER:
diff --git a/drivers/usb/host/xhci-dbgtty.c b/drivers/usb/host/xhci-dbgtty.c
index 8d47b6fbf973..75f0b92694ba 100644
--- a/drivers/usb/host/xhci-dbgtty.c
+++ b/drivers/usb/host/xhci-dbgtty.c
@@ -92,21 +92,23 @@ static void dbc_start_rx(struct dbc_port *port)
 static void
 dbc_read_complete(struct xhci_hcd *xhci, struct dbc_request *req)
 {
+        unsigned long           flags;
         struct xhci_dbc         *dbc = xhci->dbc;
         struct dbc_port         *port = &dbc->port;
 
-        spin_lock(&port->port_lock);
+        spin_lock_irqsave(&port->port_lock, flags);
         list_add_tail(&req->list_pool, &port->read_queue);
         tasklet_schedule(&port->push);
-        spin_unlock(&port->port_lock);
+        spin_unlock_irqrestore(&port->port_lock, flags);
 }
 
 static void dbc_write_complete(struct xhci_hcd *xhci, struct dbc_request *req)
 {
+        unsigned long           flags;
         struct xhci_dbc         *dbc = xhci->dbc;
         struct dbc_port         *port = &dbc->port;
 
-        spin_lock(&port->port_lock);
+        spin_lock_irqsave(&port->port_lock, flags);
         list_add(&req->list_pool, &port->write_pool);
         switch (req->status) {
         case 0:
@@ -119,7 +121,7 @@ static void dbc_write_complete(struct xhci_hcd *xhci, struct dbc_request *req)
                           req->status);
                 break;
         }
-        spin_unlock(&port->port_lock);
+        spin_unlock_irqrestore(&port->port_lock, flags);
 }
 
 static void xhci_dbc_free_req(struct dbc_ep *dep, struct dbc_request *req)
@@ -327,12 +329,13 @@ static void dbc_rx_push(unsigned long _port)
 {
         struct dbc_request      *req;
         struct tty_struct       *tty;
+        unsigned long           flags;
         bool                    do_push = false;
         bool                    disconnect = false;
         struct dbc_port         *port = (void *)_port;
         struct list_head        *queue = &port->read_queue;
 
-        spin_lock_irq(&port->port_lock);
+        spin_lock_irqsave(&port->port_lock, flags);
         tty = port->port.tty;
         while (!list_empty(queue)) {
                 req = list_first_entry(queue, struct dbc_request, list_pool);
@@ -392,16 +395,17 @@ static void dbc_rx_push(unsigned long _port)
         if (!disconnect)
                 dbc_start_rx(port);
 
-        spin_unlock_irq(&port->port_lock);
+        spin_unlock_irqrestore(&port->port_lock, flags);
 }
 
 static int dbc_port_activate(struct tty_port *_port, struct tty_struct *tty)
 {
+        unsigned long   flags;
         struct dbc_port *port = container_of(_port, struct dbc_port, port);
 
-        spin_lock_irq(&port->port_lock);
+        spin_lock_irqsave(&port->port_lock, flags);
         dbc_start_rx(port);
-        spin_unlock_irq(&port->port_lock);
+        spin_unlock_irqrestore(&port->port_lock, flags);
 
         return 0;
 }
diff --git a/drivers/usb/host/xhci-debugfs.c b/drivers/usb/host/xhci-debugfs.c
index e26e685d8a57..5851052d4668 100644
--- a/drivers/usb/host/xhci-debugfs.c
+++ b/drivers/usb/host/xhci-debugfs.c
@@ -211,7 +211,7 @@ static void xhci_ring_dump_segment(struct seq_file *s,
 static int xhci_ring_trb_show(struct seq_file *s, void *unused)
 {
         int                     i;
-        struct xhci_ring        *ring = s->private;
+        struct xhci_ring        *ring = *(struct xhci_ring **)s->private;
         struct xhci_segment     *seg = ring->first_seg;
 
         for (i = 0; i < ring->num_segs; i++) {
@@ -387,7 +387,7 @@ void xhci_debugfs_create_endpoint(struct xhci_hcd *xhci,
 
         snprintf(epriv->name, sizeof(epriv->name), "ep%02d", ep_index);
         epriv->root = xhci_debugfs_create_ring_dir(xhci,
-                                                   &dev->eps[ep_index].new_ring,
+                                                   &dev->eps[ep_index].ring,
                                                    epriv->name,
                                                    spriv->root);
         spriv->eps[ep_index] = epriv;
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 46d5e08f05f1..72ebbc908e19 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -1224,17 +1224,17 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
                                 temp = readl(port_array[wIndex]);
                                 break;
                         }
-
-                        /* Software should not attempt to set
-                         * port link state above '3' (U3) and the port
-                         * must be enabled.
-                         */
-                        if ((temp & PORT_PE) == 0 ||
-                                (link_state > USB_SS_PORT_LS_U3)) {
-                                xhci_warn(xhci, "Cannot set link state.\n");
+                        /* Port must be enabled */
+                        if (!(temp & PORT_PE)) {
+                                retval = -ENODEV;
+                                break;
+                        }
+                        /* Can't set port link state above '3' (U3) */
+                        if (link_state > USB_SS_PORT_LS_U3) {
+                                xhci_warn(xhci, "Cannot set port %d link state %d\n",
+                                         wIndex, link_state);
                                 goto error;
                         }
-
                         if (link_state == USB_SS_PORT_LS_U3) {
                                 slot_id = xhci_find_slot_id_by_port(hcd, xhci,
                                                 wIndex + 1);
@@ -1522,6 +1522,13 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
                                 t2 |= PORT_WKOC_E | PORT_WKCONN_E;
                                 t2 &= ~PORT_WKDISC_E;
                         }
+
+                        if ((xhci->quirks & XHCI_U2_DISABLE_WAKE) &&
+                            (hcd->speed < HCD_USB3)) {
+                                if (usb_amd_pt_check_port(hcd->self.controller,
+                                                          port_index))
+                                        t2 &= ~PORT_WAKE_BITS;
+                        }
                 } else
                         t2 &= ~PORT_WAKE_BITS;
 
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 6c79037876db..d9f831b67e57 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -42,6 +42,10 @@
 #define PCI_DEVICE_ID_INTEL_APL_XHCI                    0x5aa8
 #define PCI_DEVICE_ID_INTEL_DNV_XHCI                    0x19d0
 
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_4                 0x43b9
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_3                 0x43ba
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_2                 0x43bb
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_1                 0x43bc
 #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI                0x1142
 
 static const char hcd_name[] = "xhci_hcd";
@@ -122,9 +126,19 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
         if (pdev->vendor == PCI_VENDOR_ID_AMD && usb_amd_find_chipset_info())
                 xhci->quirks |= XHCI_AMD_PLL_FIX;
 
+        if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x43bb)
+                xhci->quirks |= XHCI_SUSPEND_DELAY;
+
         if (pdev->vendor == PCI_VENDOR_ID_AMD)
                 xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 
+        if ((pdev->vendor == PCI_VENDOR_ID_AMD) &&
+                ((pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4) ||
+                (pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_3) ||
+                (pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_2) ||
+                (pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_1)))
+                xhci->quirks |= XHCI_U2_DISABLE_WAKE;
+
         if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
                 xhci->quirks |= XHCI_LPM_SUPPORT;
                 xhci->quirks |= XHCI_INTEL_HOST;
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 6f038306c14d..6652e2d5bd2e 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -360,7 +360,6 @@ static int __maybe_unused xhci_plat_suspend(struct device *dev)
 {
         struct usb_hcd  *hcd = dev_get_drvdata(dev);
         struct xhci_hcd *xhci = hcd_to_xhci(hcd);
-        int ret;
 
         /*
          * xhci_suspend() needs `do_wakeup` to know whether host is allowed
@@ -370,12 +369,7 @@ static int __maybe_unused xhci_plat_suspend(struct device *dev)
          * reconsider this when xhci_plat_suspend enlarges its scope, e.g.,
          * also applies to runtime suspend.
          */
-        ret = xhci_suspend(xhci, device_may_wakeup(dev));
-
-        if (!device_may_wakeup(dev) && !IS_ERR(xhci->clk))
-                clk_disable_unprepare(xhci->clk);
-
-        return ret;
+        return xhci_suspend(xhci, device_may_wakeup(dev));
 }
 
 static int __maybe_unused xhci_plat_resume(struct device *dev)
@@ -384,9 +378,6 @@ static int __maybe_unused xhci_plat_resume(struct device *dev)
         struct xhci_hcd *xhci = hcd_to_xhci(hcd);
         int ret;
 
-        if (!device_may_wakeup(dev) && !IS_ERR(xhci->clk))
-                clk_prepare_enable(xhci->clk);
-
         ret = xhci_priv_resume_quirk(hcd);
         if (ret)
                 return ret;
diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c
index f0b559660007..f33ffc2bc4ed 100644
--- a/drivers/usb/host/xhci-rcar.c
+++ b/drivers/usb/host/xhci-rcar.c
@@ -83,6 +83,10 @@ static const struct soc_device_attribute rcar_quirks_match[]  = {
                 .soc_id = "r8a7796",
                 .data = (void *)RCAR_XHCI_FIRMWARE_V3,
         },
+        {
+                .soc_id = "r8a77965",
+                .data = (void *)RCAR_XHCI_FIRMWARE_V3,
+        },
         { /* sentinel */ },
 };
 
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 1eeb3396300f..5d37700ae4b0 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -646,8 +646,6 @@ static void xhci_stop(struct usb_hcd *hcd)
                 return;
         }
 
-        xhci_debugfs_exit(xhci);
-
         xhci_dbc_exit(xhci);
 
         spin_lock_irq(&xhci->lock);
@@ -680,6 +678,7 @@ static void xhci_stop(struct usb_hcd *hcd)
 
         xhci_dbg_trace(xhci, trace_xhci_dbg_init, "cleaning up memory");
         xhci_mem_cleanup(xhci);
+        xhci_debugfs_exit(xhci);
         xhci_dbg_trace(xhci, trace_xhci_dbg_init,
                         "xhci_stop completed - status = %x",
                         readl(&xhci->op_regs->status));
@@ -878,6 +877,9 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup)
         clear_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);
         del_timer_sync(&xhci->shared_hcd->rh_timer);
 
+        if (xhci->quirks & XHCI_SUSPEND_DELAY)
+                usleep_range(1000, 1500);
+
         spin_lock_irq(&xhci->lock);
         clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
         clear_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags);
@@ -1014,6 +1016,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 
                 xhci_dbg(xhci, "cleaning up memory\n");
                 xhci_mem_cleanup(xhci);
+                xhci_debugfs_exit(xhci);
                 xhci_dbg(xhci, "xhci_stop completed - status = %x\n",
                             readl(&xhci->op_regs->status));
 
@@ -3544,12 +3547,10 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
                 virt_dev->eps[i].ep_state &= ~EP_STOP_CMD_PENDING;
                 del_timer_sync(&virt_dev->eps[i].stop_cmd_timer);
         }
-
+        xhci_debugfs_remove_slot(xhci, udev->slot_id);
         ret = xhci_disable_slot(xhci, udev->slot_id);
-        if (ret) {
-                xhci_debugfs_remove_slot(xhci, udev->slot_id);
+        if (ret)
                 xhci_free_virt_device(xhci, udev->slot_id);
-        }
 }
 
 int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id)
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 96099a245c69..866e141d4972 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -718,11 +718,12 @@ struct xhci_ep_ctx {
 /* bits 10:14 are Max Primary Streams */
 /* bit 15 is Linear Stream Array */
 /* Interval - period between requests to an endpoint - 125u increments. */
-#define EP_INTERVAL(p)          (((p) & 0xff) << 16)
-#define EP_INTERVAL_TO_UFRAMES(p)               (1 << (((p) >> 16) & 0xff))
-#define CTX_TO_EP_INTERVAL(p)   (((p) >> 16) & 0xff)
-#define EP_MAXPSTREAMS_MASK     (0x1f << 10)
-#define EP_MAXPSTREAMS(p)       (((p) << 10) & EP_MAXPSTREAMS_MASK)
+#define EP_INTERVAL(p)                  (((p) & 0xff) << 16)
+#define EP_INTERVAL_TO_UFRAMES(p)       (1 << (((p) >> 16) & 0xff))
+#define CTX_TO_EP_INTERVAL(p)           (((p) >> 16) & 0xff)
+#define EP_MAXPSTREAMS_MASK             (0x1f << 10)
+#define EP_MAXPSTREAMS(p)               (((p) << 10) & EP_MAXPSTREAMS_MASK)
+#define CTX_TO_EP_MAXPSTREAMS(p)        (((p) & EP_MAXPSTREAMS_MASK) >> 10)
 /* Endpoint is set up with a Linear Stream Array (vs. Secondary Stream Array) */
 #define EP_HAS_LSA              (1 << 15)
 /* hosts with LEC=1 use bits 31:24 as ESIT high bits. */
@@ -1822,9 +1823,10 @@ struct xhci_hcd {
 /* For controller with a broken Port Disable implementation */
 #define XHCI_BROKEN_PORT_PED    (1 << 25)
 #define XHCI_LIMIT_ENDPOINT_INTERVAL_7  (1 << 26)
-/* Reserved. It was XHCI_U2_DISABLE_WAKE */
+#define XHCI_U2_DISABLE_WAKE    (1 << 27)
 #define XHCI_ASMEDIA_MODIFY_FLOWCONTROL (1 << 28)
 #define XHCI_HW_LPM_DISABLE     (1 << 29)
+#define XHCI_SUSPEND_DELAY      (1 << 30)
 
         unsigned int            num_active_eps;
         unsigned int            limit_active_eps;
@@ -2549,21 +2551,22 @@ static inline const char *xhci_decode_ep_context(u32 info, u32 info2, u64 deq,
         u8 burst;
         u8 cerr;
         u8 mult;
-        u8 lsa;
-        u8 hid;
+
+        bool lsa;
+        bool hid;
 
         esit = CTX_TO_MAX_ESIT_PAYLOAD_HI(info) << 16 |
                 CTX_TO_MAX_ESIT_PAYLOAD(tx_info);
 
         ep_state = info & EP_STATE_MASK;
-        max_pstr = info & EP_MAXPSTREAMS_MASK;
+        max_pstr = CTX_TO_EP_MAXPSTREAMS(info);
         interval = CTX_TO_EP_INTERVAL(info);
         mult = CTX_TO_EP_MULT(info) + 1;
-        lsa = info & EP_HAS_LSA;
+        lsa = !!(info & EP_HAS_LSA);
 
         cerr = (info2 & (3 << 1)) >> 1;
         ep_type = CTX_TO_EP_TYPE(info2);
-        hid = info2 & (1 << 7);
+        hid = !!(info2 & (1 << 7));
         burst = CTX_TO_MAX_BURST(info2);
         maxp = MAX_PACKET_DECODED(info2);
 
diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c
index 63b9e85dc0e9..236a60f53099 100644
--- a/drivers/usb/misc/ldusb.c
+++ b/drivers/usb/misc/ldusb.c
@@ -42,6 +42,9 @@
 #define USB_DEVICE_ID_LD_MICROCASSYTIME         0x1033  /* USB Product ID of Micro-CASSY Time (reserved) */
 #define USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE  0x1035  /* USB Product ID of Micro-CASSY Temperature */
 #define USB_DEVICE_ID_LD_MICROCASSYPH           0x1038  /* USB Product ID of Micro-CASSY pH */
+#define USB_DEVICE_ID_LD_POWERANALYSERCASSY     0x1040  /* USB Product ID of Power Analyser CASSY */
+#define USB_DEVICE_ID_LD_CONVERTERCONTROLLERCASSY       0x1042  /* USB Product ID of Converter Controller CASSY */
+#define USB_DEVICE_ID_LD_MACHINETESTCASSY       0x1043  /* USB Product ID of Machine Test CASSY */
 #define USB_DEVICE_ID_LD_JWM            0x1080  /* USB Product ID of Joule and Wattmeter */
 #define USB_DEVICE_ID_LD_DMMP           0x1081  /* USB Product ID of Digital Multimeter P (reserved) */
 #define USB_DEVICE_ID_LD_UMIP           0x1090  /* USB Product ID of UMI P */
@@ -84,6 +87,9 @@ static const struct usb_device_id ld_usb_table[] = {
         { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
         { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
         { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
+        { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERANALYSERCASSY) },
+        { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CONVERTERCONTROLLERCASSY) },
+        { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETESTCASSY) },
         { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
         { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
         { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c
index f5e1bb5e5217..984f7e12a6a5 100644
--- a/drivers/usb/mon/mon_text.c
+++ b/drivers/usb/mon/mon_text.c
@@ -85,6 +85,8 @@ struct mon_reader_text {
 
         wait_queue_head_t wait;
         int printf_size;
+        size_t printf_offset;
+        size_t printf_togo;
         char *printf_buf;
         struct mutex printf_lock;
 
@@ -376,75 +378,103 @@ err_alloc:
         return rc;
 }
 
-/*
- * For simplicity, we read one record in one system call and throw out
- * what does not fit. This means that the following does not work:
- *   dd if=/dbg/usbmon/0t bs=10
- * Also, we do not allow seeks and do not bother advancing the offset.
- */
+static ssize_t mon_text_copy_to_user(struct mon_reader_text *rp,
+    char __user * const buf, const size_t nbytes)
+{
+        const size_t togo = min(nbytes, rp->printf_togo);
+
+        if (copy_to_user(buf, &rp->printf_buf[rp->printf_offset], togo))
+                return -EFAULT;
+        rp->printf_togo -= togo;
+        rp->printf_offset += togo;
+        return togo;
+}
+
+/* ppos is not advanced since the llseek operation is not permitted. */
 static ssize_t mon_text_read_t(struct file *file, char __user *buf,
-                                size_t nbytes, loff_t *ppos)
+    size_t nbytes, loff_t *ppos)
 {
         struct mon_reader_text *rp = file->private_data;
         struct mon_event_text *ep;
         struct mon_text_ptr ptr;
+        ssize_t ret;
 
-        ep = mon_text_read_wait(rp, file);
-        if (IS_ERR(ep))
-                return PTR_ERR(ep);
         mutex_lock(&rp->printf_lock);
-        ptr.cnt = 0;
-        ptr.pbuf = rp->printf_buf;
-        ptr.limit = rp->printf_size;
-
-        mon_text_read_head_t(rp, &ptr, ep);
-        mon_text_read_statset(rp, &ptr, ep);
-        ptr.cnt += snprintf(ptr.pbuf + ptr.cnt, ptr.limit - ptr.cnt,
-            " %d", ep->length);
-        mon_text_read_data(rp, &ptr, ep);
-
-        if (copy_to_user(buf, rp->printf_buf, ptr.cnt))
-                ptr.cnt = -EFAULT;
+
+        if (rp->printf_togo == 0) {
+
+                ep = mon_text_read_wait(rp, file);
+                if (IS_ERR(ep)) {
+                        mutex_unlock(&rp->printf_lock);
+                        return PTR_ERR(ep);
+                }
+                ptr.cnt = 0;
+                ptr.pbuf = rp->printf_buf;
+                ptr.limit = rp->printf_size;
+
+                mon_text_read_head_t(rp, &ptr, ep);
+                mon_text_read_statset(rp, &ptr, ep);
+                ptr.cnt += snprintf(ptr.pbuf + ptr.cnt, ptr.limit - ptr.cnt,
+                    " %d", ep->length);
+                mon_text_read_data(rp, &ptr, ep);
+
+                rp->printf_togo = ptr.cnt;
+                rp->printf_offset = 0;
+
+                kmem_cache_free(rp->e_slab, ep);
+        }
+
+        ret = mon_text_copy_to_user(rp, buf, nbytes);
         mutex_unlock(&rp->printf_lock);
-        kmem_cache_free(rp->e_slab, ep);
-        return ptr.cnt;
+        return ret;
 }
 
+/* ppos is not advanced since the llseek operation is not permitted. */
 static ssize_t mon_text_read_u(struct file *file, char __user *buf,
-                                size_t nbytes, loff_t *ppos)
+    size_t nbytes, loff_t *ppos)
 {
         struct mon_reader_text *rp = file->private_data;
         struct mon_event_text *ep;
         struct mon_text_ptr ptr;
+        ssize_t ret;
 
-        ep = mon_text_read_wait(rp, file);
-        if (IS_ERR(ep))
-                return PTR_ERR(ep);
         mutex_lock(&rp->printf_lock);
-        ptr.cnt = 0;
-        ptr.pbuf = rp->printf_buf;
-        ptr.limit = rp->printf_size;
 
-        mon_text_read_head_u(rp, &ptr, ep);
-        if (ep->type == 'E') {
-                mon_text_read_statset(rp, &ptr, ep);
-        } else if (ep->xfertype == USB_ENDPOINT_XFER_ISOC) {
-                mon_text_read_isostat(rp, &ptr, ep);
-                mon_text_read_isodesc(rp, &ptr, ep);
-        } else if (ep->xfertype == USB_ENDPOINT_XFER_INT) {
-                mon_text_read_intstat(rp, &ptr, ep);
-        } else {
-                mon_text_read_statset(rp, &ptr, ep);
+        if (rp->printf_togo == 0) {
+
+                ep = mon_text_read_wait(rp, file);
+                if (IS_ERR(ep)) {
+                        mutex_unlock(&rp->printf_lock);
+                        return PTR_ERR(ep);
+                }
+                ptr.cnt = 0;
+                ptr.pbuf = rp->printf_buf;
+                ptr.limit = rp->printf_size;
+
+                mon_text_read_head_u(rp, &ptr, ep);
+                if (ep->type == 'E') {
+                        mon_text_read_statset(rp, &ptr, ep);
+                } else if (ep->xfertype == USB_ENDPOINT_XFER_ISOC) {
+                        mon_text_read_isostat(rp, &ptr, ep);
+                        mon_text_read_isodesc(rp, &ptr, ep);
+                } else if (ep->xfertype == USB_ENDPOINT_XFER_INT) {
+                        mon_text_read_intstat(rp, &ptr, ep);
+                } else {
+                        mon_text_read_statset(rp, &ptr, ep);
+                }
+                ptr.cnt += snprintf(ptr.pbuf + ptr.cnt, ptr.limit - ptr.cnt,
+                    " %d", ep->length);
+                mon_text_read_data(rp, &ptr, ep);
+
+                rp->printf_togo = ptr.cnt;
+                rp->printf_offset = 0;
+
+                kmem_cache_free(rp->e_slab, ep);
         }
-        ptr.cnt += snprintf(ptr.pbuf + ptr.cnt, ptr.limit - ptr.cnt,
-            " %d", ep->length);
-        mon_text_read_data(rp, &ptr, ep);
 
-        if (copy_to_user(buf, rp->printf_buf, ptr.cnt))
-                ptr.cnt = -EFAULT;
+        ret = mon_text_copy_to_user(rp, buf, nbytes);
         mutex_unlock(&rp->printf_lock);
-        kmem_cache_free(rp->e_slab, ep);
-        return ptr.cnt;
+        return ret;
 }
 
 static struct mon_event_text *mon_text_read_wait(struct mon_reader_text *rp,
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 968bf1e8b0fe..4d723077be2b 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1756,6 +1756,7 @@ vbus_show(struct device *dev, struct device_attribute *attr, char *buf)
         int             vbus;
         u8              devctl;
 
+        pm_runtime_get_sync(dev);
         spin_lock_irqsave(&musb->lock, flags);
         val = musb->a_wait_bcon;
         vbus = musb_platform_get_vbus_status(musb);
@@ -1769,6 +1770,7 @@ vbus_show(struct device *dev, struct device_attribute *attr, char *buf)
                         vbus = 0;
         }
         spin_unlock_irqrestore(&musb->lock, flags);
+        pm_runtime_put_sync(dev);
 
         return sprintf(buf, "Vbus %s, timeout %lu msec\n",
                         vbus ? "on" : "off", val);
@@ -2471,11 +2473,11 @@ static int musb_remove(struct platform_device *pdev)
         musb_disable_interrupts(musb);
         musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
         spin_unlock_irqrestore(&musb->lock, flags);
+        musb_platform_exit(musb);
 
         pm_runtime_dont_use_autosuspend(musb->controller);
         pm_runtime_put_sync(musb->controller);
         pm_runtime_disable(musb->controller);
-        musb_platform_exit(musb);
         musb_phy_callback = NULL;
         if (musb->dma_controller)
                 musb_dma_controller_destroy(musb->dma_controller);
@@ -2708,7 +2710,8 @@ static int musb_resume(struct device *dev)
         if ((devctl & mask) != (musb->context.devctl & mask))
                 musb->port1_status = 0;
 
-        musb_start(musb);
+        musb_enable_interrupts(musb);
+        musb_platform_enable(musb);
 
         spin_lock_irqsave(&musb->lock, flags);
         error = musb_run_resume_work(musb);
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 394b4ac86161..45ed32c2cba9 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -391,13 +391,7 @@ static void musb_advance_schedule(struct musb *musb, struct urb *urb,
                 }
         }
 
-        /*
-         * The pipe must be broken if current urb->status is set, so don't
-         * start next urb.
-         * TODO: to minimize the risk of regression, only check urb->status
-         * for RX, until we have a test case to understand the behavior of TX.
-         */
-        if ((!status || !is_in) && qh && qh->is_ready) {
+        if (qh != NULL && qh->is_ready) {
                 musb_dbg(musb, "... next ep%d %cX urb %p",
                     hw_ep->epnum, is_in ? 'R' : 'T', next_urb(qh));
                 musb_start_urb(musb, is_in, qh);
diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index da031c45395a..fbec863350f6 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -602,6 +602,9 @@ static enum usb_charger_type mxs_phy_charger_detect(struct usb_phy *phy)
         void __iomem *base = phy->io_priv;
         enum usb_charger_type chgr_type = UNKNOWN_TYPE;
 
+        if (!regmap)
+                return UNKNOWN_TYPE;
+
         if (mxs_charger_data_contact_detect(mxs_phy))
                 return chgr_type;
 
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index 5925d111bd47..39fa2fc1b8b7 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -982,6 +982,10 @@ static int usbhsf_dma_prepare_pop_with_usb_dmac(struct usbhs_pkt *pkt,
         if ((uintptr_t)pkt->buf & (USBHS_USB_DMAC_XFER_SIZE - 1))
                 goto usbhsf_pio_prepare_pop;
 
+        /* return at this time if the pipe is running */
+        if (usbhs_pipe_is_running(pipe))
+                return 0;
+
         usbhs_pipe_config_change_bfre(pipe, 1);
 
         ret = usbhsf_fifo_select(pipe, fifo, 0);
@@ -1172,6 +1176,7 @@ static int usbhsf_dma_pop_done_with_usb_dmac(struct usbhs_pkt *pkt,
         usbhsf_fifo_clear(pipe, fifo);
         pkt->actual = usbhs_dma_calc_received_size(pkt, chan, rcv_len);
 
+        usbhs_pipe_running(pipe, 0);
         usbhsf_dma_stop(pipe, fifo);
         usbhsf_dma_unmap(pkt);
         usbhsf_fifo_unselect(pipe, pipe->fifo);
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 5db8ed517e0e..2d8d9150da0c 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -241,6 +241,7 @@ static void option_instat_callback(struct urb *urb);
 #define QUECTEL_PRODUCT_EC21                    0x0121
 #define QUECTEL_PRODUCT_EC25                    0x0125
 #define QUECTEL_PRODUCT_BG96                    0x0296
+#define QUECTEL_PRODUCT_EP06                    0x0306
 
 #define CMOTECH_VENDOR_ID                       0x16d8
 #define CMOTECH_PRODUCT_6001                    0x6001
@@ -689,6 +690,10 @@ static const struct option_blacklist_info yuga_clm920_nc5_blacklist = {
         .reserved = BIT(1) | BIT(4),
 };
 
+static const struct option_blacklist_info quectel_ep06_blacklist = {
+        .reserved = BIT(4) | BIT(5),
+};
+
 static const struct usb_device_id option_ids[] = {
         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -1203,6 +1208,8 @@ static const struct usb_device_id option_ids[] = {
           .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
         { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96),
           .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+        { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06),
+          .driver_info = (kernel_ulong_t)&quectel_ep06_blacklist },
         { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
         { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },
         { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003),
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 3b1b9695177a..6034c39b67d1 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -1076,7 +1076,7 @@ static int uas_post_reset(struct usb_interface *intf)
                 return 0;
 
         err = uas_configure_endpoints(devinfo);
-        if (err && err != ENODEV)
+        if (err && err != -ENODEV)
                 shost_printk(KERN_ERR, shost,
                              "%s: alloc streams error %d after reset",
                              __func__, err);
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 264af199aec8..747d3a9596d9 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -2118,6 +2118,13 @@ UNUSUAL_DEV(  0x152d, 0x2566, 0x0114, 0x0114,
                 USB_SC_DEVICE, USB_PR_DEVICE, NULL,
                 US_FL_BROKEN_FUA ),
 
+/* Reported by Teijo Kinnunen <teijo.kinnunen@code-q.fi> */
+UNUSUAL_DEV(  0x152d, 0x2567, 0x0117, 0x0117,
+                "JMicron",
+                "USB to ATA/ATAPI Bridge",
+                USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+                US_FL_BROKEN_FUA ),
+
 /* Reported-by George Cherian <george.cherian@cavium.com> */
 UNUSUAL_DEV(0x152d, 0x9561, 0x0000, 0x9999,
                 "JMicron",
diff --git a/drivers/usb/typec/fusb302/fusb302.c b/drivers/usb/typec/fusb302/fusb302.c
index 9ce4756adad6..dcd8ef085b30 100644
--- a/drivers/usb/typec/fusb302/fusb302.c
+++ b/drivers/usb/typec/fusb302/fusb302.c
@@ -1857,7 +1857,8 @@ static int fusb302_probe(struct i2c_client *client,
         chip->tcpm_port = tcpm_register_port(&client->dev, &chip->tcpc_dev);
         if (IS_ERR(chip->tcpm_port)) {
                 ret = PTR_ERR(chip->tcpm_port);
-                dev_err(dev, "cannot register tcpm port, ret=%d", ret);
+                if (ret != -EPROBE_DEFER)
+                        dev_err(dev, "cannot register tcpm port, ret=%d", ret);
                 goto destroy_workqueue;
         }
 
diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index f4d563ee7690..8b637a4b474b 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -252,9 +252,6 @@ struct tcpm_port {
         unsigned int nr_src_pdo;
         u32 snk_pdo[PDO_MAX_OBJECTS];
         unsigned int nr_snk_pdo;
-        unsigned int nr_fixed; /* number of fixed sink PDOs */
-        unsigned int nr_var; /* number of variable sink PDOs */
-        unsigned int nr_batt; /* number of battery sink PDOs */
         u32 snk_vdo[VDO_MAX_OBJECTS];
         unsigned int nr_snk_vdo;
 
@@ -1770,90 +1767,39 @@ static int tcpm_pd_check_request(struct tcpm_port *port)
         return 0;
 }
 
-#define min_power(x, y) min(pdo_max_power(x), pdo_max_power(y))
-#define min_current(x, y) min(pdo_max_current(x), pdo_max_current(y))
-
-static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
-                              int *src_pdo)
+static int tcpm_pd_select_pdo(struct tcpm_port *port)
 {
-        unsigned int i, j, max_mw = 0, max_mv = 0, mw = 0, mv = 0, ma = 0;
+        unsigned int i, max_mw = 0, max_mv = 0;
         int ret = -EINVAL;
 
         /*
-         * Select the source PDO providing the most power which has a
-         * matchig sink cap.
+         * Select the source PDO providing the most power while staying within
+         * the board's voltage limits. Prefer PDO providing exp
          */
         for (i = 0; i < port->nr_source_caps; i++) {
                 u32 pdo = port->source_caps[i];
                 enum pd_pdo_type type = pdo_type(pdo);
+                unsigned int mv, ma, mw;
 
-                if (type == PDO_TYPE_FIXED) {
-                        for (j = 0; j < port->nr_fixed; j++) {
-                                if (pdo_fixed_voltage(pdo) ==
-                                    pdo_fixed_voltage(port->snk_pdo[j])) {
-                                        ma = min_current(pdo, port->snk_pdo[j]);
-                                        mv = pdo_fixed_voltage(pdo);
-                                        mw = ma * mv / 1000;
-                                        if (mw > max_mw ||
-                                            (mw == max_mw && mv > max_mv)) {
-                                                ret = 0;
-                                                *src_pdo = i;
-                                                *sink_pdo = j;
-                                                max_mw = mw;
-                                                max_mv = mv;
-                                        }
-                                        /* There could only be one fixed pdo
-                                         * at a specific voltage level.
-                                         * So breaking here.
-                                         */
-                                        break;
-                                }
-                        }
-                } else if (type == PDO_TYPE_BATT) {
-                        for (j = port->nr_fixed;
-                             j < port->nr_fixed +
-                                 port->nr_batt;
-                             j++) {
-                                if (pdo_min_voltage(pdo) >=
-                                     pdo_min_voltage(port->snk_pdo[j]) &&
-                                     pdo_max_voltage(pdo) <=
-                                     pdo_max_voltage(port->snk_pdo[j])) {
-                                        mw = min_power(pdo, port->snk_pdo[j]);
-                                        mv = pdo_min_voltage(pdo);
-                                        if (mw > max_mw ||
-                                            (mw == max_mw && mv > max_mv)) {
-                                                ret = 0;
-                                                *src_pdo = i;
-                                                *sink_pdo = j;
-                                                max_mw = mw;
-                                                max_mv = mv;
-                                        }
-                                }
-                        }
-                } else if (type == PDO_TYPE_VAR) {
-                        for (j = port->nr_fixed +
-                                 port->nr_batt;
-                             j < port->nr_fixed +
-                                 port->nr_batt +
-                                 port->nr_var;
-                             j++) {
-                                if (pdo_min_voltage(pdo) >=
-                                     pdo_min_voltage(port->snk_pdo[j]) &&
-                                     pdo_max_voltage(pdo) <=
-                                     pdo_max_voltage(port->snk_pdo[j])) {
-                                        ma = min_current(pdo, port->snk_pdo[j]);
-                                        mv = pdo_min_voltage(pdo);
-                                        mw = ma * mv / 1000;
-                                        if (mw > max_mw ||
-                                            (mw == max_mw && mv > max_mv)) {
-                                                ret = 0;
-                                                *src_pdo = i;
-                                                *sink_pdo = j;
-                                                max_mw = mw;
-                                                max_mv = mv;
-                                        }
-                                }
-                        }
+                if (type == PDO_TYPE_FIXED)
+                        mv = pdo_fixed_voltage(pdo);
+                else
+                        mv = pdo_min_voltage(pdo);
+
+                if (type == PDO_TYPE_BATT) {
+                        mw = pdo_max_power(pdo);
+                } else {
+                        ma = min(pdo_max_current(pdo),
+                                 port->max_snk_ma);
+                        mw = ma * mv / 1000;
+                }
+
+                /* Perfer higher voltages if available */
+                if ((mw > max_mw || (mw == max_mw && mv > max_mv)) &&
+                    mv <= port->max_snk_mv) {
+                        ret = i;
+                        max_mw = mw;
+                        max_mv = mv;
                 }
         }
 
@@ -1865,14 +1811,13 @@ static int tcpm_pd_build_request(struct tcpm_port *port, u32 *rdo)
         unsigned int mv, ma, mw, flags;
         unsigned int max_ma, max_mw;
         enum pd_pdo_type type;
-        int src_pdo_index, snk_pdo_index;
-        u32 pdo, matching_snk_pdo;
+        int index;
+        u32 pdo;
 
-        if (tcpm_pd_select_pdo(port, &snk_pdo_index, &src_pdo_index) < 0)
+        index = tcpm_pd_select_pdo(port);
+        if (index < 0)
                 return -EINVAL;
-
-        pdo = port->source_caps[src_pdo_index];
-        matching_snk_pdo = port->snk_pdo[snk_pdo_index];
+        pdo = port->source_caps[index];
         type = pdo_type(pdo);
 
         if (type == PDO_TYPE_FIXED)
@@ -1880,28 +1825,26 @@ static int tcpm_pd_build_request(struct tcpm_port *port, u32 *rdo)
         else
                 mv = pdo_min_voltage(pdo);
 
-        /* Select maximum available current within the sink pdo's limit */
+        /* Select maximum available current within the board's power limit */
         if (type == PDO_TYPE_BATT) {
-                mw = min_power(pdo, matching_snk_pdo);
-                ma = 1000 * mw / mv;
+                mw = pdo_max_power(pdo);
+                ma = 1000 * min(mw, port->max_snk_mw) / mv;
         } else {
-                ma = min_current(pdo, matching_snk_pdo);
-                mw = ma * mv / 1000;
+                ma = min(pdo_max_current(pdo),
+                         1000 * port->max_snk_mw / mv);
         }
+        ma = min(ma, port->max_snk_ma);
 
         flags = RDO_USB_COMM | RDO_NO_SUSPEND;
 
         /* Set mismatch bit if offered power is less than operating power */
+        mw = ma * mv / 1000;
         max_ma = ma;
         max_mw = mw;
         if (mw < port->operating_snk_mw) {
                 flags |= RDO_CAP_MISMATCH;
-                if (type == PDO_TYPE_BATT &&
-                    (pdo_max_power(matching_snk_pdo) > pdo_max_power(pdo)))
-                        max_mw = pdo_max_power(matching_snk_pdo);
-                else if (pdo_max_current(matching_snk_pdo) >
-                         pdo_max_current(pdo))
-                        max_ma = pdo_max_current(matching_snk_pdo);
+                max_mw = port->operating_snk_mw;
+                max_ma = max_mw * 1000 / mv;
         }
 
         tcpm_log(port, "cc=%d cc1=%d cc2=%d vbus=%d vconn=%s polarity=%d",
@@ -1910,16 +1853,16 @@ static int tcpm_pd_build_request(struct tcpm_port *port, u32 *rdo)
                  port->polarity);
 
         if (type == PDO_TYPE_BATT) {
-                *rdo = RDO_BATT(src_pdo_index + 1, mw, max_mw, flags);
+                *rdo = RDO_BATT(index + 1, mw, max_mw, flags);
 
                 tcpm_log(port, "Requesting PDO %d: %u mV, %u mW%s",
-                         src_pdo_index, mv, mw,
+                         index, mv, mw,
                          flags & RDO_CAP_MISMATCH ? " [mismatch]" : "");
         } else {
-                *rdo = RDO_FIXED(src_pdo_index + 1, ma, max_ma, flags);
+                *rdo = RDO_FIXED(index + 1, ma, max_ma, flags);
 
                 tcpm_log(port, "Requesting PDO %d: %u mV, %u mA%s",
-                         src_pdo_index, mv, ma,
+                         index, mv, ma,
                          flags & RDO_CAP_MISMATCH ? " [mismatch]" : "");
         }
 
@@ -3650,19 +3593,6 @@ int tcpm_update_sink_capabilities(struct tcpm_port *port, const u32 *pdo,
 }
 EXPORT_SYMBOL_GPL(tcpm_update_sink_capabilities);
 
-static int nr_type_pdos(const u32 *pdo, unsigned int nr_pdo,
-                        enum pd_pdo_type type)
-{
-        int count = 0;
-        int i;
-
-        for (i = 0; i < nr_pdo; i++) {
-                if (pdo_type(pdo[i]) == type)
-                        count++;
-        }
-        return count;
-}
-
 struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
 {
         struct tcpm_port *port;
@@ -3708,15 +3638,6 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
                                           tcpc->config->nr_src_pdo);
         port->nr_snk_pdo = tcpm_copy_pdos(port->snk_pdo, tcpc->config->snk_pdo,
                                           tcpc->config->nr_snk_pdo);
-        port->nr_fixed =  nr_type_pdos(port->snk_pdo,
-                                       port->nr_snk_pdo,
-                                       PDO_TYPE_FIXED);
-        port->nr_var = nr_type_pdos(port->snk_pdo,
-                                    port->nr_snk_pdo,
-                                    PDO_TYPE_VAR);
-        port->nr_batt = nr_type_pdos(port->snk_pdo,
-                                     port->nr_snk_pdo,
-                                     PDO_TYPE_BATT);
         port->nr_snk_vdo = tcpm_copy_vdos(port->snk_vdo, tcpc->config->snk_vdo,
                                           tcpc->config->nr_snk_vdo);
 
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index 49e552472c3f..dd8ef36ab10e 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -73,6 +73,7 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a
                         goto err;
 
                 sdev->ud.tcp_socket = socket;
+                sdev->ud.sockfd = sockfd;
 
                 spin_unlock_irq(&sdev->ud.lock);
 
@@ -172,6 +173,7 @@ static void stub_shutdown_connection(struct usbip_device *ud)
         if (ud->tcp_socket) {
                 sockfd_put(ud->tcp_socket);
                 ud->tcp_socket = NULL;
+                ud->sockfd = -1;
         }
 
         /* 3. free used data */
@@ -266,6 +268,7 @@ static struct stub_device *stub_device_alloc(struct usb_device *udev)
         sdev->ud.status         = SDEV_ST_AVAILABLE;
         spin_lock_init(&sdev->ud.lock);
         sdev->ud.tcp_socket     = NULL;
+        sdev->ud.sockfd         = -1;
 
         INIT_LIST_HEAD(&sdev->priv_init);
         INIT_LIST_HEAD(&sdev->priv_tx);
diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
index c3e1008aa491..20e3d4609583 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -984,6 +984,7 @@ static void vhci_shutdown_connection(struct usbip_device *ud)
         if (vdev->ud.tcp_socket) {
                 sockfd_put(vdev->ud.tcp_socket);
                 vdev->ud.tcp_socket = NULL;
+                vdev->ud.sockfd = -1;
         }
         pr_info("release socket\n");
 
@@ -1030,6 +1031,7 @@ static void vhci_device_reset(struct usbip_device *ud)
         if (ud->tcp_socket) {
                 sockfd_put(ud->tcp_socket);
                 ud->tcp_socket = NULL;
+                ud->sockfd = -1;
         }
         ud->status = VDEV_ST_NULL;
 
diff --git a/drivers/usb/usbip/vudc_sysfs.c b/drivers/usb/usbip/vudc_sysfs.c
index d86f72bbbb91..6dcd3ff655c3 100644
--- a/drivers/usb/usbip/vudc_sysfs.c
+++ b/drivers/usb/usbip/vudc_sysfs.c
@@ -105,10 +105,14 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a
         if (rv != 0)
                 return -EINVAL;
 
+        if (!udc) {
+                dev_err(dev, "no device");
+                return -ENODEV;
+        }
         spin_lock_irqsave(&udc->lock, flags);
         /* Don't export what we don't have */
-        if (!udc || !udc->driver || !udc->pullup) {
-                dev_err(dev, "no device or gadget not bound");
+        if (!udc->driver || !udc->pullup) {
+                dev_err(dev, "gadget not bound");
                 ret = -ENODEV;
                 goto unlock;
         }
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index b0f759476900..8a1508a8e481 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -207,9 +207,6 @@ static bool vfio_pci_nointx(struct pci_dev *pdev)
                 }
         }
 
-        if (!pdev->irq)
-                return true;
-
         return false;
 }
 
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index e30e29ae4819..45657e2b1ff7 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -338,11 +338,12 @@ static int vaddr_get_pfn(struct mm_struct *mm, unsigned long vaddr,
 {
         struct page *page[1];
         struct vm_area_struct *vma;
+        struct vm_area_struct *vmas[1];
         int ret;
 
         if (mm == current->mm) {
-                ret = get_user_pages_fast(vaddr, 1, !!(prot & IOMMU_WRITE),
-                                          page);
+                ret = get_user_pages_longterm(vaddr, 1, !!(prot & IOMMU_WRITE),
+                                              page, vmas);
         } else {
                 unsigned int flags = 0;
 
@@ -351,7 +352,18 @@ static int vaddr_get_pfn(struct mm_struct *mm, unsigned long vaddr,
 
                 down_read(&mm->mmap_sem);
                 ret = get_user_pages_remote(NULL, mm, vaddr, 1, flags, page,
-                                            NULL, NULL);
+                                            vmas, NULL);
+                /*
+                 * The lifetime of a vaddr_get_pfn() page pin is
+                 * userspace-controlled. In the fs-dax case this could
+                 * lead to indefinite stalls in filesystem operations.
+                 * Disallow attempts to pin fs-dax pages via this
+                 * interface.
+                 */
+                if (ret > 0 && vma_is_fsdax(vmas[0])) {
+                        ret = -EOPNOTSUPP;
+                        put_page(page[0]);
+                }
                 up_read(&mm->mmap_sem);
         }
 
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 610cba276d47..8139bc70ad7d 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -170,7 +170,7 @@ static void vhost_net_buf_unproduce(struct vhost_net_virtqueue *nvq)
         if (nvq->rx_ring && !vhost_net_buf_is_empty(rxq)) {
                 ptr_ring_unconsume(nvq->rx_ring, rxq->queue + rxq->head,
                                    vhost_net_buf_get_size(rxq),
-                                   __skb_array_destroy_skb);
+                                   tun_ptr_free);
                 rxq->head = rxq->tail = 0;
         }
 }
@@ -948,6 +948,7 @@ static int vhost_net_open(struct inode *inode, struct file *f)
                 n->vqs[i].done_idx = 0;
                 n->vqs[i].vhost_hlen = 0;
                 n->vqs[i].sock_hlen = 0;
+                n->vqs[i].rx_ring = NULL;
                 vhost_net_buf_init(&n->vqs[i].rxq);
         }
         vhost_dev_init(dev, vqs, VHOST_NET_VQ_MAX);
@@ -972,6 +973,7 @@ static struct socket *vhost_net_stop_vq(struct vhost_net *n,
         vhost_net_disable_vq(n, vq);
         vq->private_data = NULL;
         vhost_net_buf_unproduce(nvq);
+        nvq->rx_ring = NULL;
         mutex_unlock(&vq->mutex);
         return sock;
 }
@@ -1161,14 +1163,14 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd)
                 vhost_net_disable_vq(n, vq);
                 vq->private_data = sock;
                 vhost_net_buf_unproduce(nvq);
-                if (index == VHOST_NET_VQ_RX)
-                        nvq->rx_ring = get_tap_ptr_ring(fd);
                 r = vhost_vq_init_access(vq);
                 if (r)
                         goto err_used;
                 r = vhost_net_enable_vq(n, vq);
                 if (r)
                         goto err_used;
+                if (index == VHOST_NET_VQ_RX)
+                        nvq->rx_ring = get_tap_ptr_ring(fd);
 
                 oldubufs = nvq->ubufs;
                 nvq->ubufs = ubufs;
diff --git a/drivers/video/fbdev/geode/video_gx.c b/drivers/video/fbdev/geode/video_gx.c
index 6082f653c68a..67773e8bbb95 100644
--- a/drivers/video/fbdev/geode/video_gx.c
+++ b/drivers/video/fbdev/geode/video_gx.c
@@ -127,7 +127,7 @@ void gx_set_dclk_frequency(struct fb_info *info)
         int timeout = 1000;
 
         /* Rev. 1 Geode GXs use a 14 MHz reference clock instead of 48 MHz. */
-        if (cpu_data(0).x86_mask == 1) {
+        if (cpu_data(0).x86_stepping == 1) {
                 pll_table = gx_pll_table_14MHz;
                 pll_table_len = ARRAY_SIZE(gx_pll_table_14MHz);
         } else {
diff --git a/drivers/video/fbdev/sbuslib.c b/drivers/video/fbdev/sbuslib.c
index af6fc97f4ba4..a436d44f1b7f 100644
--- a/drivers/video/fbdev/sbuslib.c
+++ b/drivers/video/fbdev/sbuslib.c
@@ -122,7 +122,7 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
                 unsigned char __user *ured;
                 unsigned char __user *ugreen;
                 unsigned char __user *ublue;
-                int index, count, i;
+                unsigned int index, count, i;
 
                 if (get_user(index, &c->index) ||
                     __get_user(count, &c->count) ||
@@ -161,7 +161,7 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
                 unsigned char __user *ugreen;
                 unsigned char __user *ublue;
                 struct fb_cmap *cmap = &info->cmap;
-                int index, count, i;
+                unsigned int index, count, i;
                 u8 red, green, blue;
 
                 if (get_user(index, &c->index) ||
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index eb30f3e09a47..71458f493cf8 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -428,8 +428,6 @@ unmap_release:
                 i = virtio16_to_cpu(_vq->vdev, vq->vring.desc[i].next);
         }
 
-        vq->vq.num_free += total_sg;
-
         if (indirect)
                 kfree(desc);
 
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index aff773bcebdb..37460cd6cabb 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -226,6 +226,7 @@ config ZIIRAVE_WATCHDOG
 config RAVE_SP_WATCHDOG
         tristate "RAVE SP Watchdog timer"
         depends on RAVE_SP_CORE
+        depends on NVMEM || !NVMEM
         select WATCHDOG_CORE
         help
           Support for the watchdog on RAVE SP device.
@@ -903,6 +904,7 @@ config F71808E_WDT
 config SP5100_TCO
         tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
         depends on X86 && PCI
+        select WATCHDOG_CORE
         ---help---
           Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
           (Total Cost of Ownership) timer is a watchdog timer that will reboot
@@ -1008,6 +1010,7 @@ config WAFER_WDT
 config I6300ESB_WDT
         tristate "Intel 6300ESB Timer/Watchdog"
         depends on PCI
+        select WATCHDOG_CORE
         ---help---
           Hardware driver for the watchdog timer built into the Intel
           6300ESB controller hub.
@@ -1837,6 +1840,7 @@ config WATCHDOG_SUN4V
 config XEN_WDT
         tristate "Xen Watchdog support"
         depends on XEN
+        select WATCHDOG_CORE
         help
           Say Y here to support the hypervisor watchdog capability provided
           by Xen 4.0 and newer.  The watchdog timeout period is normally one
diff --git a/drivers/watchdog/f71808e_wdt.c b/drivers/watchdog/f71808e_wdt.c
index e0678c14480f..3a33c5344bd5 100644
--- a/drivers/watchdog/f71808e_wdt.c
+++ b/drivers/watchdog/f71808e_wdt.c
@@ -566,7 +566,8 @@ static ssize_t watchdog_write(struct file *file, const char __user *buf,
                                 char c;
                                 if (get_user(c, buf + i))
                                         return -EFAULT;
-                                expect_close = (c == 'V');
+                                if (c == 'V')
+                                        expect_close = true;
                         }
 
                         /* Properly order writes across fork()ed processes */
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index f1f00dfc0e68..b0a158073abd 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -28,16 +28,7 @@
 #include <linux/types.h>
 #include <linux/uaccess.h>
 #include <linux/watchdog.h>
-#ifdef CONFIG_HPWDT_NMI_DECODING
-#include <linux/dmi.h>
-#include <linux/spinlock.h>
-#include <linux/nmi.h>
-#include <linux/kdebug.h>
-#include <linux/notifier.h>
-#include <asm/set_memory.h>
-#endif /* CONFIG_HPWDT_NMI_DECODING */
 #include <asm/nmi.h>
-#include <asm/frame.h>
 
 #define HPWDT_VERSION                   "1.4.0"
 #define SECS_TO_TICKS(secs)             ((secs) * 1000 / 128)
@@ -48,6 +39,9 @@
 static unsigned int soft_margin = DEFAULT_MARGIN;       /* in seconds */
 static unsigned int reload;                     /* the computed soft_margin */
 static bool nowayout = WATCHDOG_NOWAYOUT;
+#ifdef CONFIG_HPWDT_NMI_DECODING
+static unsigned int allow_kdump = 1;
+#endif
 static char expect_release;
 static unsigned long hpwdt_is_open;
 
@@ -63,373 +57,6 @@ static const struct pci_device_id hpwdt_devices[] = {
 };
 MODULE_DEVICE_TABLE(pci, hpwdt_devices);
 
-#ifdef CONFIG_HPWDT_NMI_DECODING
-#define PCI_BIOS32_SD_VALUE             0x5F32335F      /* "_32_" */
-#define CRU_BIOS_SIGNATURE_VALUE        0x55524324
-#define PCI_BIOS32_PARAGRAPH_LEN        16
-#define PCI_ROM_BASE1                   0x000F0000
-#define ROM_SIZE                        0x10000
-
-struct bios32_service_dir {
-        u32 signature;
-        u32 entry_point;
-        u8 revision;
-        u8 length;
-        u8 checksum;
-        u8 reserved[5];
-};
-
-/* type 212 */
-struct smbios_cru64_info {
-        u8 type;
-        u8 byte_length;
-        u16 handle;
-        u32 signature;
-        u64 physical_address;
-        u32 double_length;
-        u32 double_offset;
-};
-#define SMBIOS_CRU64_INFORMATION        212
-
-/* type 219 */
-struct smbios_proliant_info {
-        u8 type;
-        u8 byte_length;
-        u16 handle;
-        u32 power_features;
-        u32 omega_features;
-        u32 reserved;
-        u32 misc_features;
-};
-#define SMBIOS_ICRU_INFORMATION         219
-
-
-struct cmn_registers {
-        union {
-                struct {
-                        u8 ral;
-                        u8 rah;
-                        u16 rea2;
-                };
-                u32 reax;
-        } u1;
-        union {
-                struct {
-                        u8 rbl;
-                        u8 rbh;
-                        u8 reb2l;
-                        u8 reb2h;
-                };
-                u32 rebx;
-        } u2;
-        union {
-                struct {
-                        u8 rcl;
-                        u8 rch;
-                        u16 rec2;
-                };
-                u32 recx;
-        } u3;
-        union {
-                struct {
-                        u8 rdl;
-                        u8 rdh;
-                        u16 red2;
-                };
-                u32 redx;
-        } u4;
-
-        u32 resi;
-        u32 redi;
-        u16 rds;
-        u16 res;
-        u32 reflags;
-}  __attribute__((packed));
-
-static unsigned int hpwdt_nmi_decoding;
-static unsigned int allow_kdump = 1;
-static unsigned int is_icru;
-static unsigned int is_uefi;
-static DEFINE_SPINLOCK(rom_lock);
-static void *cru_rom_addr;
-static struct cmn_registers cmn_regs;
-
-extern asmlinkage void asminline_call(struct cmn_registers *pi86Regs,
-                                                unsigned long *pRomEntry);
-
-#ifdef CONFIG_X86_32
-/* --32 Bit Bios------------------------------------------------------------ */
-
-#define HPWDT_ARCH      32
-
-asm(".text                          \n\t"
-    ".align 4                       \n\t"
-    ".globl asminline_call          \n"
-    "asminline_call:                \n\t"
-    "pushl       %ebp               \n\t"
-    "movl        %esp, %ebp         \n\t"
-    "pusha                          \n\t"
-    "pushf                          \n\t"
-    "push        %es                \n\t"
-    "push        %ds                \n\t"
-    "pop         %es                \n\t"
-    "movl        8(%ebp),%eax       \n\t"
-    "movl        4(%eax),%ebx       \n\t"
-    "movl        8(%eax),%ecx       \n\t"
-    "movl        12(%eax),%edx      \n\t"
-    "movl        16(%eax),%esi      \n\t"
-    "movl        20(%eax),%edi      \n\t"
-    "movl        (%eax),%eax        \n\t"
-    "push        %cs                \n\t"
-    "call        *12(%ebp)          \n\t"
-    "pushf                          \n\t"
-    "pushl       %eax               \n\t"
-    "movl        8(%ebp),%eax       \n\t"
-    "movl        %ebx,4(%eax)       \n\t"
-    "movl        %ecx,8(%eax)       \n\t"
-    "movl        %edx,12(%eax)      \n\t"
-    "movl        %esi,16(%eax)      \n\t"
-    "movl        %edi,20(%eax)      \n\t"
-    "movw        %ds,24(%eax)       \n\t"
-    "movw        %es,26(%eax)       \n\t"
-    "popl        %ebx               \n\t"
-    "movl        %ebx,(%eax)        \n\t"
-    "popl        %ebx               \n\t"
-    "movl        %ebx,28(%eax)      \n\t"
-    "pop         %es                \n\t"
-    "popf                           \n\t"
-    "popa                           \n\t"
-    "leave                          \n\t"
-    "ret                            \n\t"
-    ".previous");
-
-
-/*
- *      cru_detect
- *
- *      Routine Description:
- *      This function uses the 32-bit BIOS Service Directory record to
- *      search for a $CRU record.
- *
- *      Return Value:
- *      0        :  SUCCESS
- *      <0       :  FAILURE
- */
-static int cru_detect(unsigned long map_entry,
-        unsigned long map_offset)
-{
-        void *bios32_map;
-        unsigned long *bios32_entrypoint;
-        unsigned long cru_physical_address;
-        unsigned long cru_length;
-        unsigned long physical_bios_base = 0;
-        unsigned long physical_bios_offset = 0;
-        int retval = -ENODEV;
-
-        bios32_map = ioremap(map_entry, (2 * PAGE_SIZE));
-
-        if (bios32_map == NULL)
-                return -ENODEV;
-
-        bios32_entrypoint = bios32_map + map_offset;
-
-        cmn_regs.u1.reax = CRU_BIOS_SIGNATURE_VALUE;
-
-        set_memory_x((unsigned long)bios32_map, 2);
-        asminline_call(&cmn_regs, bios32_entrypoint);
-
-        if (cmn_regs.u1.ral != 0) {
-                pr_warn("Call succeeded but with an error: 0x%x\n",
-                        cmn_regs.u1.ral);
-        } else {
-                physical_bios_base = cmn_regs.u2.rebx;
-                physical_bios_offset = cmn_regs.u4.redx;
-                cru_length = cmn_regs.u3.recx;
-                cru_physical_address =
-                        physical_bios_base + physical_bios_offset;
-
-                /* If the values look OK, then map it in. */
-                if ((physical_bios_base + physical_bios_offset)) {
-                        cru_rom_addr =
-                                ioremap(cru_physical_address, cru_length);
-                        if (cru_rom_addr) {
-                                set_memory_x((unsigned long)cru_rom_addr & PAGE_MASK,
-                                        (cru_length + PAGE_SIZE - 1) >> PAGE_SHIFT);
-                                retval = 0;
-                        }
-                }
-
-                pr_debug("CRU Base Address:   0x%lx\n", physical_bios_base);
-                pr_debug("CRU Offset Address: 0x%lx\n", physical_bios_offset);
-                pr_debug("CRU Length:         0x%lx\n", cru_length);
-                pr_debug("CRU Mapped Address: %p\n", &cru_rom_addr);
-        }
-        iounmap(bios32_map);
-        return retval;
-}
-
-/*
- *      bios_checksum
- */
-static int bios_checksum(const char __iomem *ptr, int len)
-{
-        char sum = 0;
-        int i;
-
-        /*
-         * calculate checksum of size bytes. This should add up
-         * to zero if we have a valid header.
-         */
-        for (i = 0; i < len; i++)
-                sum += ptr[i];
-
-        return ((sum == 0) && (len > 0));
-}
-
-/*
- *      bios32_present
- *
- *      Routine Description:
- *      This function finds the 32-bit BIOS Service Directory
- *
- *      Return Value:
- *      0        :  SUCCESS
- *      <0       :  FAILURE
- */
-static int bios32_present(const char __iomem *p)
-{
-        struct bios32_service_dir *bios_32_ptr;
-        int length;
-        unsigned long map_entry, map_offset;
-
-        bios_32_ptr = (struct bios32_service_dir *) p;
-
-        /*
-         * Search for signature by checking equal to the swizzled value
-         * instead of calling another routine to perform a strcmp.
-         */
-        if (bios_32_ptr->signature == PCI_BIOS32_SD_VALUE) {
-                length = bios_32_ptr->length * PCI_BIOS32_PARAGRAPH_LEN;
-                if (bios_checksum(p, length)) {
-                        /*
-                         * According to the spec, we're looking for the
-                         * first 4KB-aligned address below the entrypoint
-                         * listed in the header. The Service Directory code
-                         * is guaranteed to occupy no more than 2 4KB pages.
-                         */
-                        map_entry = bios_32_ptr->entry_point & ~(PAGE_SIZE - 1);
-                        map_offset = bios_32_ptr->entry_point - map_entry;
-
-                        return cru_detect(map_entry, map_offset);
-                }
-        }
-        return -ENODEV;
-}
-
-static int detect_cru_service(void)
-{
-        char __iomem *p, *q;
-        int rc = -1;
-
-        /*
-         * Search from 0x0f0000 through 0x0fffff, inclusive.
-         */
-        p = ioremap(PCI_ROM_BASE1, ROM_SIZE);
-        if (p == NULL)
-                return -ENOMEM;
-
-        for (q = p; q < p + ROM_SIZE; q += 16) {
-                rc = bios32_present(q);
-                if (!rc)
-                        break;
-        }
-        iounmap(p);
-        return rc;
-}
-/* ------------------------------------------------------------------------- */
-#endif /* CONFIG_X86_32 */
-#ifdef CONFIG_X86_64
-/* --64 Bit Bios------------------------------------------------------------ */
-
-#define HPWDT_ARCH      64
-
-asm(".text                      \n\t"
-    ".align 4                   \n\t"
-    ".globl asminline_call      \n\t"
-    ".type asminline_call, @function \n\t"
-    "asminline_call:            \n\t"
-    FRAME_BEGIN
-    "pushq      %rax            \n\t"
-    "pushq      %rbx            \n\t"
-    "pushq      %rdx            \n\t"
-    "pushq      %r12            \n\t"
-    "pushq      %r9             \n\t"
-    "movq       %rsi, %r12      \n\t"
-    "movq       %rdi, %r9       \n\t"
-    "movl       4(%r9),%ebx     \n\t"
-    "movl       8(%r9),%ecx     \n\t"
-    "movl       12(%r9),%edx    \n\t"
-    "movl       16(%r9),%esi    \n\t"
-    "movl       20(%r9),%edi    \n\t"
-    "movl       (%r9),%eax      \n\t"
-    "call       *%r12           \n\t"
-    "pushfq                     \n\t"
-    "popq        %r12           \n\t"
-    "movl       %eax, (%r9)     \n\t"
-    "movl       %ebx, 4(%r9)    \n\t"
-    "movl       %ecx, 8(%r9)    \n\t"
-    "movl       %edx, 12(%r9)   \n\t"
-    "movl       %esi, 16(%r9)   \n\t"
-    "movl       %edi, 20(%r9)   \n\t"
-    "movq       %r12, %rax      \n\t"
-    "movl       %eax, 28(%r9)   \n\t"
-    "popq       %r9             \n\t"
-    "popq       %r12            \n\t"
-    "popq       %rdx            \n\t"
-    "popq       %rbx            \n\t"
-    "popq       %rax            \n\t"
-    FRAME_END
-    "ret                        \n\t"
-    ".previous");
-
-/*
- *      dmi_find_cru
- *
- *      Routine Description:
- *      This function checks whether or not a SMBIOS/DMI record is
- *      the 64bit CRU info or not
- */
-static void dmi_find_cru(const struct dmi_header *dm, void *dummy)
-{
-        struct smbios_cru64_info *smbios_cru64_ptr;
-        unsigned long cru_physical_address;
-
-        if (dm->type == SMBIOS_CRU64_INFORMATION) {
-                smbios_cru64_ptr = (struct smbios_cru64_info *) dm;
-                if (smbios_cru64_ptr->signature == CRU_BIOS_SIGNATURE_VALUE) {
-                        cru_physical_address =
-                                smbios_cru64_ptr->physical_address +
-                                smbios_cru64_ptr->double_offset;
-                        cru_rom_addr = ioremap(cru_physical_address,
-                                smbios_cru64_ptr->double_length);
-                        set_memory_x((unsigned long)cru_rom_addr & PAGE_MASK,
-                                smbios_cru64_ptr->double_length >> PAGE_SHIFT);
-                }
-        }
-}
-
-static int detect_cru_service(void)
-{
-        cru_rom_addr = NULL;
-
-        dmi_walk(dmi_find_cru, NULL);
-
-        /* if cru_rom_addr has been set then we found a CRU service */
-        return ((cru_rom_addr != NULL) ? 0 : -ENODEV);
-}
-/* ------------------------------------------------------------------------- */
-#endif /* CONFIG_X86_64 */
-#endif /* CONFIG_HPWDT_NMI_DECODING */
 
 /*
  *      Watchdog operations
@@ -486,30 +113,12 @@ static int hpwdt_my_nmi(void)
  */
 static int hpwdt_pretimeout(unsigned int ulReason, struct pt_regs *regs)
 {
-        unsigned long rom_pl;
-        static int die_nmi_called;
-
-        if (!hpwdt_nmi_decoding)
-                return NMI_DONE;
-
         if ((ulReason == NMI_UNKNOWN) && !hpwdt_my_nmi())
                 return NMI_DONE;
 
-        spin_lock_irqsave(&rom_lock, rom_pl);
-        if (!die_nmi_called && !is_icru && !is_uefi)
-                asminline_call(&cmn_regs, cru_rom_addr);
-        die_nmi_called = 1;
-        spin_unlock_irqrestore(&rom_lock, rom_pl);
-
         if (allow_kdump)
                 hpwdt_stop();
 
-        if (!is_icru && !is_uefi) {
-                if (cmn_regs.u1.ral == 0) {
-                        nmi_panic(regs, "An NMI occurred, but unable to determine source.\n");
-                        return NMI_HANDLED;
-                }
-        }
         nmi_panic(regs, "An NMI occurred. Depending on your system the reason "
                 "for the NMI is logged in any one of the following "
                 "resources:\n"
@@ -675,84 +284,11 @@ static struct miscdevice hpwdt_miscdev = {
  *      Init & Exit
  */
 
-#ifdef CONFIG_HPWDT_NMI_DECODING
-#ifdef CONFIG_X86_LOCAL_APIC
-static void hpwdt_check_nmi_decoding(struct pci_dev *dev)
-{
-        /*
-         * If nmi_watchdog is turned off then we can turn on
-         * our nmi decoding capability.
-         */
-        hpwdt_nmi_decoding = 1;
-}
-#else
-static void hpwdt_check_nmi_decoding(struct pci_dev *dev)
-{
-        dev_warn(&dev->dev, "NMI decoding is disabled. "
-                "Your kernel does not support a NMI Watchdog.\n");
-}
-#endif /* CONFIG_X86_LOCAL_APIC */
-
-/*
- *      dmi_find_icru
- *
- *      Routine Description:
- *      This function checks whether or not we are on an iCRU-based server.
- *      This check is independent of architecture and needs to be made for
- *      any ProLiant system.
- */
-static void dmi_find_icru(const struct dmi_header *dm, void *dummy)
-{
-        struct smbios_proliant_info *smbios_proliant_ptr;
-
-        if (dm->type == SMBIOS_ICRU_INFORMATION) {
-                smbios_proliant_ptr = (struct smbios_proliant_info *) dm;
-                if (smbios_proliant_ptr->misc_features & 0x01)
-                        is_icru = 1;
-                if (smbios_proliant_ptr->misc_features & 0x1400)
-                        is_uefi = 1;
-        }
-}
 
 static int hpwdt_init_nmi_decoding(struct pci_dev *dev)
 {
+#ifdef CONFIG_HPWDT_NMI_DECODING
         int retval;
-
-        /*
-         * On typical CRU-based systems we need to map that service in
-         * the BIOS. For 32 bit Operating Systems we need to go through
-         * the 32 Bit BIOS Service Directory. For 64 bit Operating
-         * Systems we get that service through SMBIOS.
-         *
-         * On systems that support the new iCRU service all we need to
-         * do is call dmi_walk to get the supported flag value and skip
-         * the old cru detect code.
-         */
-        dmi_walk(dmi_find_icru, NULL);
-        if (!is_icru && !is_uefi) {
-
-                /*
-                * We need to map the ROM to get the CRU service.
-                * For 32 bit Operating Systems we need to go through the 32 Bit
-                * BIOS Service Directory
-                * For 64 bit Operating Systems we get that service through SMBIOS.
-                */
-                retval = detect_cru_service();
-                if (retval < 0) {
-                        dev_warn(&dev->dev,
-                                "Unable to detect the %d Bit CRU Service.\n",
-                                HPWDT_ARCH);
-                        return retval;
-                }
-
-                /*
-                * We know this is the only CRU call we need to make so lets keep as
-                * few instructions as possible once the NMI comes in.
-                */
-                cmn_regs.u1.rah = 0x0D;
-                cmn_regs.u1.ral = 0x02;
-        }
-
         /*
          * Only one function can register for NMI_UNKNOWN
          */
@@ -780,45 +316,26 @@ error:
         dev_warn(&dev->dev,
                 "Unable to register a die notifier (err=%d).\n",
                 retval);
-        if (cru_rom_addr)
-                iounmap(cru_rom_addr);
         return retval;
+#endif  /* CONFIG_HPWDT_NMI_DECODING */
+        return 0;
 }
 
 static void hpwdt_exit_nmi_decoding(void)
 {
+#ifdef CONFIG_HPWDT_NMI_DECODING
         unregister_nmi_handler(NMI_UNKNOWN, "hpwdt");
         unregister_nmi_handler(NMI_SERR, "hpwdt");
         unregister_nmi_handler(NMI_IO_CHECK, "hpwdt");
-        if (cru_rom_addr)
-                iounmap(cru_rom_addr);
-}
-#else /* !CONFIG_HPWDT_NMI_DECODING */
-static void hpwdt_check_nmi_decoding(struct pci_dev *dev)
-{
-}
-
-static int hpwdt_init_nmi_decoding(struct pci_dev *dev)
-{
-        return 0;
+#endif
 }
 
-static void hpwdt_exit_nmi_decoding(void)
-{
-}
-#endif /* CONFIG_HPWDT_NMI_DECODING */
-
 static int hpwdt_init_one(struct pci_dev *dev,
                                         const struct pci_device_id *ent)
 {
         int retval;
 
         /*
-         * Check if we can do NMI decoding or not
-         */
-        hpwdt_check_nmi_decoding(dev);
-
-        /*
          * First let's find out if we are on an iLO2+ server. We will
          * not run on a legacy ASM box.
          * So we only support the G5 ProLiant servers and higher.
@@ -922,6 +439,6 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
 #ifdef CONFIG_HPWDT_NMI_DECODING
 module_param(allow_kdump, int, 0);
 MODULE_PARM_DESC(allow_kdump, "Start a kernel dump after NMI occurs");
-#endif /* !CONFIG_HPWDT_NMI_DECODING */
+#endif /* CONFIG_HPWDT_NMI_DECODING */
 
 module_pci_driver(hpwdt_driver);
diff --git a/drivers/watchdog/sbsa_gwdt.c b/drivers/watchdog/sbsa_gwdt.c
index 316c2eb122d2..e8bd9887c566 100644
--- a/drivers/watchdog/sbsa_gwdt.c
+++ b/drivers/watchdog/sbsa_gwdt.c
@@ -50,6 +50,7 @@
  */
 
 #include <linux/io.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
@@ -159,7 +160,7 @@ static unsigned int sbsa_gwdt_get_timeleft(struct watchdog_device *wdd)
             !(readl(gwdt->control_base + SBSA_GWDT_WCS) & SBSA_GWDT_WCS_WS0))
                 timeleft += readl(gwdt->control_base + SBSA_GWDT_WOR);
 
-        timeleft += readq(gwdt->control_base + SBSA_GWDT_WCV) -
+        timeleft += lo_hi_readq(gwdt->control_base + SBSA_GWDT_WCV) -
                     arch_counter_get_cntvct();
 
         do_div(timeleft, gwdt->clk);
diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c
index 6d1fbda0f461..0da9943d405f 100644
--- a/drivers/watchdog/wdat_wdt.c
+++ b/drivers/watchdog/wdat_wdt.c
@@ -392,7 +392,7 @@ static int wdat_wdt_probe(struct platform_device *pdev)
 
                 memset(&r, 0, sizeof(r));
                 r.start = gas->address;
-                r.end = r.start + gas->access_width;
+                r.end = r.start + gas->access_width - 1;
                 if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
                         r.flags = IORESOURCE_MEM;
                 } else if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 1ab4bd11f5f3..762378f1811c 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -755,8 +755,8 @@ out:
         mutex_unlock(&irq_mapping_update_lock);
         return irq;
 error_irq:
-        for (; i >= 0; i--)
-                __unbind_from_irq(irq + i);
+        while (nvec--)
+                __unbind_from_irq(irq + nvec);
         mutex_unlock(&irq_mapping_update_lock);
         return ret;
 }
diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index 156e5aea36db..b1092fbefa63 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -416,7 +416,7 @@ static int pvcalls_back_connect(struct xenbus_device *dev,
                                         sock);
         if (!map) {
                 ret = -EFAULT;
-                sock_release(map->sock);
+                sock_release(sock);
         }
 
 out:
diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c
index 753d9cb437d0..2f11ca72a281 100644
--- a/drivers/xen/pvcalls-front.c
+++ b/drivers/xen/pvcalls-front.c
@@ -60,6 +60,7 @@ struct sock_mapping {
         bool active_socket;
         struct list_head list;
         struct socket *sock;
+        atomic_t refcount;
         union {
                 struct {
                         int irq;
@@ -72,20 +73,25 @@ struct sock_mapping {
                         wait_queue_head_t inflight_conn_req;
                 } active;
                 struct {
-                /* Socket status */
+                /*
+                 * Socket status, needs to be 64-bit aligned due to the
+                 * test_and_* functions which have this requirement on arm64.
+                 */
 #define PVCALLS_STATUS_UNINITALIZED  0
 #define PVCALLS_STATUS_BIND          1
 #define PVCALLS_STATUS_LISTEN        2
-                        uint8_t status;
+                        uint8_t status __attribute__((aligned(8)));
                 /*
                  * Internal state-machine flags.
                  * Only one accept operation can be inflight for a socket.
                  * Only one poll operation can be inflight for a given socket.
+                 * flags needs to be 64-bit aligned due to the test_and_*
+                 * functions which have this requirement on arm64.
                  */
 #define PVCALLS_FLAG_ACCEPT_INFLIGHT 0
 #define PVCALLS_FLAG_POLL_INFLIGHT   1
 #define PVCALLS_FLAG_POLL_RET        2
-                        uint8_t flags;
+                        uint8_t flags __attribute__((aligned(8)));
                         uint32_t inflight_req_id;
                         struct sock_mapping *accept_map;
                         wait_queue_head_t inflight_accept_req;
@@ -93,6 +99,32 @@ struct sock_mapping {
         };
 };
 
+static inline struct sock_mapping *pvcalls_enter_sock(struct socket *sock)
+{
+        struct sock_mapping *map;
+
+        if (!pvcalls_front_dev ||
+                dev_get_drvdata(&pvcalls_front_dev->dev) == NULL)
+                return ERR_PTR(-ENOTCONN);
+
+        map = (struct sock_mapping *)sock->sk->sk_send_head;
+        if (map == NULL)
+                return ERR_PTR(-ENOTSOCK);
+
+        pvcalls_enter();
+        atomic_inc(&map->refcount);
+        return map;
+}
+
+static inline void pvcalls_exit_sock(struct socket *sock)
+{
+        struct sock_mapping *map;
+
+        map = (struct sock_mapping *)sock->sk->sk_send_head;
+        atomic_dec(&map->refcount);
+        pvcalls_exit();
+}
+
 static inline int get_request(struct pvcalls_bedata *bedata, int *req_id)
 {
         *req_id = bedata->ring.req_prod_pvt & (RING_SIZE(&bedata->ring) - 1);
@@ -369,31 +401,23 @@ int pvcalls_front_connect(struct socket *sock, struct sockaddr *addr,
         if (addr->sa_family != AF_INET || sock->type != SOCK_STREAM)
                 return -EOPNOTSUPP;
 
-        pvcalls_enter();
-        if (!pvcalls_front_dev) {
-                pvcalls_exit();
-                return -ENOTCONN;
-        }
+        map = pvcalls_enter_sock(sock);
+        if (IS_ERR(map))
+                return PTR_ERR(map);
 
         bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
-        map = (struct sock_mapping *)sock->sk->sk_send_head;
-        if (!map) {
-                pvcalls_exit();
-                return -ENOTSOCK;
-        }
-
         spin_lock(&bedata->socket_lock);
         ret = get_request(bedata, &req_id);
         if (ret < 0) {
                 spin_unlock(&bedata->socket_lock);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return ret;
         }
         ret = create_active(map, &evtchn);
         if (ret < 0) {
                 spin_unlock(&bedata->socket_lock);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return ret;
         }
 
@@ -423,7 +447,7 @@ int pvcalls_front_connect(struct socket *sock, struct sockaddr *addr,
         smp_rmb();
         ret = bedata->rsp[req_id].ret;
         bedata->rsp[req_id].req_id = PVCALLS_INVALID_ID;
-        pvcalls_exit();
+        pvcalls_exit_sock(sock);
         return ret;
 }
 
@@ -488,23 +512,15 @@ int pvcalls_front_sendmsg(struct socket *sock, struct msghdr *msg,
         if (flags & (MSG_CONFIRM|MSG_DONTROUTE|MSG_EOR|MSG_OOB))
                 return -EOPNOTSUPP;
 
-        pvcalls_enter();
-        if (!pvcalls_front_dev) {
-                pvcalls_exit();
-                return -ENOTCONN;
-        }
+        map = pvcalls_enter_sock(sock);
+        if (IS_ERR(map))
+                return PTR_ERR(map);
         bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
-        map = (struct sock_mapping *) sock->sk->sk_send_head;
-        if (!map) {
-                pvcalls_exit();
-                return -ENOTSOCK;
-        }
-
         mutex_lock(&map->active.out_mutex);
         if ((flags & MSG_DONTWAIT) && !pvcalls_front_write_todo(map)) {
                 mutex_unlock(&map->active.out_mutex);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return -EAGAIN;
         }
         if (len > INT_MAX)
@@ -526,7 +542,7 @@ again:
                 tot_sent = sent;
 
         mutex_unlock(&map->active.out_mutex);
-        pvcalls_exit();
+        pvcalls_exit_sock(sock);
         return tot_sent;
 }
 
@@ -591,19 +607,11 @@ int pvcalls_front_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
         if (flags & (MSG_CMSG_CLOEXEC|MSG_ERRQUEUE|MSG_OOB|MSG_TRUNC))
                 return -EOPNOTSUPP;
 
-        pvcalls_enter();
-        if (!pvcalls_front_dev) {
-                pvcalls_exit();
-                return -ENOTCONN;
-        }
+        map = pvcalls_enter_sock(sock);
+        if (IS_ERR(map))
+                return PTR_ERR(map);
         bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
-        map = (struct sock_mapping *) sock->sk->sk_send_head;
-        if (!map) {
-                pvcalls_exit();
-                return -ENOTSOCK;
-        }
-
         mutex_lock(&map->active.in_mutex);
         if (len > XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER))
                 len = XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER);
@@ -623,7 +631,7 @@ int pvcalls_front_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
                 ret = 0;
 
         mutex_unlock(&map->active.in_mutex);
-        pvcalls_exit();
+        pvcalls_exit_sock(sock);
         return ret;
 }
 
@@ -637,24 +645,16 @@ int pvcalls_front_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
         if (addr->sa_family != AF_INET || sock->type != SOCK_STREAM)
                 return -EOPNOTSUPP;
 
-        pvcalls_enter();
-        if (!pvcalls_front_dev) {
-                pvcalls_exit();
-                return -ENOTCONN;
-        }
+        map = pvcalls_enter_sock(sock);
+        if (IS_ERR(map))
+                return PTR_ERR(map);
         bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
-        map = (struct sock_mapping *) sock->sk->sk_send_head;
-        if (map == NULL) {
-                pvcalls_exit();
-                return -ENOTSOCK;
-        }
-
         spin_lock(&bedata->socket_lock);
         ret = get_request(bedata, &req_id);
         if (ret < 0) {
                 spin_unlock(&bedata->socket_lock);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return ret;
         }
         req = RING_GET_REQUEST(&bedata->ring, req_id);
@@ -684,7 +684,7 @@ int pvcalls_front_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
         bedata->rsp[req_id].req_id = PVCALLS_INVALID_ID;
 
         map->passive.status = PVCALLS_STATUS_BIND;
-        pvcalls_exit();
+        pvcalls_exit_sock(sock);
         return 0;
 }
 
@@ -695,21 +695,13 @@ int pvcalls_front_listen(struct socket *sock, int backlog)
         struct xen_pvcalls_request *req;
         int notify, req_id, ret;
 
-        pvcalls_enter();
-        if (!pvcalls_front_dev) {
-                pvcalls_exit();
-                return -ENOTCONN;
-        }
+        map = pvcalls_enter_sock(sock);
+        if (IS_ERR(map))
+                return PTR_ERR(map);
         bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
-        map = (struct sock_mapping *) sock->sk->sk_send_head;
-        if (!map) {
-                pvcalls_exit();
-                return -ENOTSOCK;
-        }
-
         if (map->passive.status != PVCALLS_STATUS_BIND) {
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return -EOPNOTSUPP;
         }
 
@@ -717,7 +709,7 @@ int pvcalls_front_listen(struct socket *sock, int backlog)
         ret = get_request(bedata, &req_id);
         if (ret < 0) {
                 spin_unlock(&bedata->socket_lock);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return ret;
         }
         req = RING_GET_REQUEST(&bedata->ring, req_id);
@@ -741,7 +733,7 @@ int pvcalls_front_listen(struct socket *sock, int backlog)
         bedata->rsp[req_id].req_id = PVCALLS_INVALID_ID;
 
         map->passive.status = PVCALLS_STATUS_LISTEN;
-        pvcalls_exit();
+        pvcalls_exit_sock(sock);
         return ret;
 }
 
@@ -753,21 +745,13 @@ int pvcalls_front_accept(struct socket *sock, struct socket *newsock, int flags)
         struct xen_pvcalls_request *req;
         int notify, req_id, ret, evtchn, nonblock;
 
-        pvcalls_enter();
-        if (!pvcalls_front_dev) {
-                pvcalls_exit();
-                return -ENOTCONN;
-        }
+        map = pvcalls_enter_sock(sock);
+        if (IS_ERR(map))
+                return PTR_ERR(map);
         bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
-        map = (struct sock_mapping *) sock->sk->sk_send_head;
-        if (!map) {
-                pvcalls_exit();
-                return -ENOTSOCK;
-        }
-
         if (map->passive.status != PVCALLS_STATUS_LISTEN) {
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return -EINVAL;
         }
 
@@ -785,13 +769,13 @@ int pvcalls_front_accept(struct socket *sock, struct socket *newsock, int flags)
                         goto received;
                 }
                 if (nonblock) {
-                        pvcalls_exit();
+                        pvcalls_exit_sock(sock);
                         return -EAGAIN;
                 }
                 if (wait_event_interruptible(map->passive.inflight_accept_req,
                         !test_and_set_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT,
                                           (void *)&map->passive.flags))) {
-                        pvcalls_exit();
+                        pvcalls_exit_sock(sock);
                         return -EINTR;
                 }
         }
@@ -802,7 +786,7 @@ int pvcalls_front_accept(struct socket *sock, struct socket *newsock, int flags)
                 clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT,
                           (void *)&map->passive.flags);
                 spin_unlock(&bedata->socket_lock);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return ret;
         }
         map2 = kzalloc(sizeof(*map2), GFP_ATOMIC);
@@ -810,7 +794,7 @@ int pvcalls_front_accept(struct socket *sock, struct socket *newsock, int flags)
                 clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT,
                           (void *)&map->passive.flags);
                 spin_unlock(&bedata->socket_lock);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return -ENOMEM;
         }
         ret = create_active(map2, &evtchn);
@@ -819,7 +803,7 @@ int pvcalls_front_accept(struct socket *sock, struct socket *newsock, int flags)
                 clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT,
                           (void *)&map->passive.flags);
                 spin_unlock(&bedata->socket_lock);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return ret;
         }
         list_add_tail(&map2->list, &bedata->socket_mappings);
@@ -841,13 +825,13 @@ int pvcalls_front_accept(struct socket *sock, struct socket *newsock, int flags)
         /* We could check if we have received a response before returning. */
         if (nonblock) {
                 WRITE_ONCE(map->passive.inflight_req_id, req_id);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return -EAGAIN;
         }
 
         if (wait_event_interruptible(bedata->inflight_req,
                 READ_ONCE(bedata->rsp[req_id].req_id) == req_id)) {
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return -EINTR;
         }
         /* read req_id, then the content */
@@ -862,7 +846,7 @@ received:
                 clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT,
                           (void *)&map->passive.flags);
                 pvcalls_front_free_map(bedata, map2);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return -ENOMEM;
         }
         newsock->sk->sk_send_head = (void *)map2;
@@ -874,7 +858,7 @@ received:
         clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT, (void *)&map->passive.flags);
         wake_up(&map->passive.inflight_accept_req);
 
-        pvcalls_exit();
+        pvcalls_exit_sock(sock);
         return ret;
 }
 
@@ -965,23 +949,16 @@ __poll_t pvcalls_front_poll(struct file *file, struct socket *sock,
         struct sock_mapping *map;
         __poll_t ret;
 
-        pvcalls_enter();
-        if (!pvcalls_front_dev) {
-                pvcalls_exit();
+        map = pvcalls_enter_sock(sock);
+        if (IS_ERR(map))
                 return EPOLLNVAL;
-        }
         bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
-        map = (struct sock_mapping *) sock->sk->sk_send_head;
-        if (!map) {
-                pvcalls_exit();
-                return EPOLLNVAL;
-        }
         if (map->active_socket)
                 ret = pvcalls_front_poll_active(file, bedata, map, wait);
         else
                 ret = pvcalls_front_poll_passive(file, bedata, map, wait);
-        pvcalls_exit();
+        pvcalls_exit_sock(sock);
         return ret;
 }
 
@@ -995,25 +972,20 @@ int pvcalls_front_release(struct socket *sock)
         if (sock->sk == NULL)
                 return 0;
 
-        pvcalls_enter();
-        if (!pvcalls_front_dev) {
-                pvcalls_exit();
-                return -EIO;
+        map = pvcalls_enter_sock(sock);
+        if (IS_ERR(map)) {
+                if (PTR_ERR(map) == -ENOTCONN)
+                        return -EIO;
+                else
+                        return 0;
         }
-
         bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
-        map = (struct sock_mapping *) sock->sk->sk_send_head;
-        if (map == NULL) {
-                pvcalls_exit();
-                return 0;
-        }
-
         spin_lock(&bedata->socket_lock);
         ret = get_request(bedata, &req_id);
         if (ret < 0) {
                 spin_unlock(&bedata->socket_lock);
-                pvcalls_exit();
+                pvcalls_exit_sock(sock);
                 return ret;
         }
         sock->sk->sk_send_head = NULL;
@@ -1043,14 +1015,20 @@ int pvcalls_front_release(struct socket *sock)
                 /*
                  * We need to make sure that sendmsg/recvmsg on this socket have
                  * not started before we've cleared sk_send_head here. The
-                 * easiest (though not optimal) way to guarantee this is to see
-                 * that no pvcall (other than us) is in progress.
+                 * easiest way to guarantee this is to see that no pvcalls
+                 * (other than us) is in progress on this socket.
                  */
-                while (atomic_read(&pvcalls_refcount) > 1)
+                while (atomic_read(&map->refcount) > 1)
                         cpu_relax();
 
                 pvcalls_front_free_map(bedata, map);
         } else {
+                wake_up(&bedata->inflight_req);
+                wake_up(&map->passive.inflight_accept_req);
+
+                while (atomic_read(&map->refcount) > 1)
+                        cpu_relax();
+
                 spin_lock(&bedata->socket_lock);
                 list_del(&map->list);
                 spin_unlock(&bedata->socket_lock);
diff --git a/drivers/xen/tmem.c b/drivers/xen/tmem.c
index bf13d1ec51f3..04e7b3b29bac 100644
--- a/drivers/xen/tmem.c
+++ b/drivers/xen/tmem.c
@@ -284,6 +284,10 @@ static int tmem_frontswap_store(unsigned type, pgoff_t offset,
         int pool = tmem_frontswap_poolid;
         int ret;
 
+        /* THP isn't supported */
+        if (PageTransHuge(page))
+                return -1;
+
         if (pool < 0)
                 return -1;
         if (ind64 != ind)
diff --git a/drivers/xen/xenbus/xenbus.h b/drivers/xen/xenbus/xenbus.h
index 149c5e7efc89..092981171df1 100644
--- a/drivers/xen/xenbus/xenbus.h
+++ b/drivers/xen/xenbus/xenbus.h
@@ -76,6 +76,7 @@ struct xb_req_data {
         struct list_head list;
         wait_queue_head_t wq;
         struct xsd_sockmsg msg;
+        uint32_t caller_req_id;
         enum xsd_sockmsg_type type;
         char *body;
         const struct kvec *vec;
diff --git a/drivers/xen/xenbus/xenbus_comms.c b/drivers/xen/xenbus/xenbus_comms.c
index 5b081a01779d..d239fc3c5e3d 100644
--- a/drivers/xen/xenbus/xenbus_comms.c
+++ b/drivers/xen/xenbus/xenbus_comms.c
@@ -309,6 +309,7 @@ static int process_msg(void)
                         goto out;
 
                 if (req->state == xb_req_state_wait_reply) {
+                        req->msg.req_id = req->caller_req_id;
                         req->msg.type = state.msg.type;
                         req->msg.len = state.msg.len;
                         req->body = state.body;
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index 74888cacd0b0..ec9eb4fba59c 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -466,8 +466,11 @@ int xenbus_probe_node(struct xen_bus_type *bus,
 
         /* Register with generic device framework. */
         err = device_register(&xendev->dev);
-        if (err)
+        if (err) {
+                put_device(&xendev->dev);
+                xendev = NULL;
                 goto fail;
+        }
 
         return 0;
 fail:
diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c
index 3e59590c7254..3f3b29398ab8 100644
--- a/drivers/xen/xenbus/xenbus_xs.c
+++ b/drivers/xen/xenbus/xenbus_xs.c
@@ -227,6 +227,8 @@ static void xs_send(struct xb_req_data *req, struct xsd_sockmsg *msg)
         req->state = xb_req_state_queued;
         init_waitqueue_head(&req->wq);
 
+        /* Save the caller req_id and restore it later in the reply */
+        req->caller_req_id = req->msg.req_id;
         req->msg.req_id = xs_request_enter(req);
 
         mutex_lock(&xb_write_mutex);
@@ -310,6 +312,7 @@ static void *xs_talkv(struct xenbus_transaction t,
         req->num_vecs = num_vecs;
         req->cb = xs_wake_up;
 
+        msg.req_id = 0;
         msg.tx_id = t.id;
         msg.type = type;
         msg.len = 0;
diff --git a/fs/aio.c b/fs/aio.c
index a062d75109cb..6bcd3fb5265a 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -68,9 +68,9 @@ struct aio_ring {
 #define AIO_RING_PAGES  8
 
 struct kioctx_table {
-        struct rcu_head rcu;
-        unsigned        nr;
-        struct kioctx   *table[];
+        struct rcu_head         rcu;
+        unsigned                nr;
+        struct kioctx __rcu     *table[];
 };
 
 struct kioctx_cpu {
@@ -115,7 +115,8 @@ struct kioctx {
         struct page             **ring_pages;
         long                    nr_pages;
 
-        struct work_struct      free_work;
+        struct rcu_head         free_rcu;
+        struct work_struct      free_work;      /* see free_ioctx() */
 
         /*
          * signals when all in-flight requests are done
@@ -329,7 +330,7 @@ static int aio_ring_mremap(struct vm_area_struct *vma)
         for (i = 0; i < table->nr; i++) {
                 struct kioctx *ctx;
 
-                ctx = table->table[i];
+                ctx = rcu_dereference(table->table[i]);
                 if (ctx && ctx->aio_ring_file == file) {
                         if (!atomic_read(&ctx->dead)) {
                                 ctx->user_id = ctx->mmap_base = vma->vm_start;
@@ -588,6 +589,12 @@ static int kiocb_cancel(struct aio_kiocb *kiocb)
         return cancel(&kiocb->common);
 }
 
+/*
+ * free_ioctx() should be RCU delayed to synchronize against the RCU
+ * protected lookup_ioctx() and also needs process context to call
+ * aio_free_ring(), so the double bouncing through kioctx->free_rcu and
+ * ->free_work.
+ */
 static void free_ioctx(struct work_struct *work)
 {
         struct kioctx *ctx = container_of(work, struct kioctx, free_work);
@@ -601,6 +608,14 @@ static void free_ioctx(struct work_struct *work)
         kmem_cache_free(kioctx_cachep, ctx);
 }
 
+static void free_ioctx_rcufn(struct rcu_head *head)
+{
+        struct kioctx *ctx = container_of(head, struct kioctx, free_rcu);
+
+        INIT_WORK(&ctx->free_work, free_ioctx);
+        schedule_work(&ctx->free_work);
+}
+
 static void free_ioctx_reqs(struct percpu_ref *ref)
 {
         struct kioctx *ctx = container_of(ref, struct kioctx, reqs);
@@ -609,8 +624,8 @@ static void free_ioctx_reqs(struct percpu_ref *ref)
         if (ctx->rq_wait && atomic_dec_and_test(&ctx->rq_wait->count))
                 complete(&ctx->rq_wait->comp);
 
-        INIT_WORK(&ctx->free_work, free_ioctx);
-        schedule_work(&ctx->free_work);
+        /* Synchronize against RCU protected table->table[] dereferences */
+        call_rcu(&ctx->free_rcu, free_ioctx_rcufn);
 }
 
 /*
@@ -651,9 +666,9 @@ static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm)
         while (1) {
                 if (table)
                         for (i = 0; i < table->nr; i++)
-                                if (!table->table[i]) {
+                                if (!rcu_access_pointer(table->table[i])) {
                                         ctx->id = i;
-                                        table->table[i] = ctx;
+                                        rcu_assign_pointer(table->table[i], ctx);
                                         spin_unlock(&mm->ioctx_lock);
 
                                         /* While kioctx setup is in progress,
@@ -834,11 +849,11 @@ static int kill_ioctx(struct mm_struct *mm, struct kioctx *ctx,
         }
 
         table = rcu_dereference_raw(mm->ioctx_table);
-        WARN_ON(ctx != table->table[ctx->id]);
-        table->table[ctx->id] = NULL;
+        WARN_ON(ctx != rcu_access_pointer(table->table[ctx->id]));
+        RCU_INIT_POINTER(table->table[ctx->id], NULL);
         spin_unlock(&mm->ioctx_lock);
 
-        /* percpu_ref_kill() will do the necessary call_rcu() */
+        /* free_ioctx_reqs() will do the necessary RCU synchronization */
         wake_up_all(&ctx->wait);
 
         /*
@@ -880,7 +895,8 @@ void exit_aio(struct mm_struct *mm)
 
         skipped = 0;
         for (i = 0; i < table->nr; ++i) {
-                struct kioctx *ctx = table->table[i];
+                struct kioctx *ctx =
+                        rcu_dereference_protected(table->table[i], true);
 
                 if (!ctx) {
                         skipped++;
@@ -1069,7 +1085,7 @@ static struct kioctx *lookup_ioctx(unsigned long ctx_id)
         if (!table || id >= table->nr)
                 goto out;
 
-        ctx = table->table[id];
+        ctx = rcu_dereference(table->table[id]);
         if (ctx && ctx->user_id == ctx_id) {
                 percpu_ref_get(&ctx->users);
                 ret = ctx;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 4a181fcb5175..fe09ef9c21f3 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1058,6 +1058,27 @@ retry:
         return 0;
 }
 
+static struct gendisk *bdev_get_gendisk(struct block_device *bdev, int *partno)
+{
+        struct gendisk *disk = get_gendisk(bdev->bd_dev, partno);
+
+        if (!disk)
+                return NULL;
+        /*
+         * Now that we hold gendisk reference we make sure bdev we looked up is
+         * not stale. If it is, it means device got removed and created before
+         * we looked up gendisk and we fail open in such case. Associating
+         * unhashed bdev with newly created gendisk could lead to two bdevs
+         * (and thus two independent caches) being associated with one device
+         * which is bad.
+         */
+        if (inode_unhashed(bdev->bd_inode)) {
+                put_disk_and_module(disk);
+                return NULL;
+        }
+        return disk;
+}
+
 /**
  * bd_start_claiming - start claiming a block device
  * @bdev: block device of interest
@@ -1094,7 +1115,7 @@ static struct block_device *bd_start_claiming(struct block_device *bdev,
          * @bdev might not have been initialized properly yet, look up
          * and grab the outer block device the hard way.
          */
-        disk = get_gendisk(bdev->bd_dev, &partno);
+        disk = bdev_get_gendisk(bdev, &partno);
         if (!disk)
                 return ERR_PTR(-ENXIO);
 
@@ -1111,8 +1132,7 @@ static struct block_device *bd_start_claiming(struct block_device *bdev,
         else
                 whole = bdgrab(bdev);
 
-        module_put(disk->fops->owner);
-        put_disk(disk);
+        put_disk_and_module(disk);
         if (!whole)
                 return ERR_PTR(-ENOMEM);
 
@@ -1407,10 +1427,10 @@ static void __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part);
 static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
 {
         struct gendisk *disk;
-        struct module *owner;
         int ret;
         int partno;
         int perm = 0;
+        bool first_open = false;
 
         if (mode & FMODE_READ)
                 perm |= MAY_READ;
@@ -1430,14 +1450,14 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
  restart:
 
         ret = -ENXIO;
-        disk = get_gendisk(bdev->bd_dev, &partno);
+        disk = bdev_get_gendisk(bdev, &partno);
         if (!disk)
                 goto out;
-        owner = disk->fops->owner;
 
         disk_block_events(disk);
         mutex_lock_nested(&bdev->bd_mutex, for_part);
         if (!bdev->bd_openers) {
+                first_open = true;
                 bdev->bd_disk = disk;
                 bdev->bd_queue = disk->queue;
                 bdev->bd_contains = bdev;
@@ -1463,8 +1483,7 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
                                         bdev->bd_queue = NULL;
                                         mutex_unlock(&bdev->bd_mutex);
                                         disk_unblock_events(disk);
-                                        put_disk(disk);
-                                        module_put(owner);
+                                        put_disk_and_module(disk);
                                         goto restart;
                                 }
                         }
@@ -1524,15 +1543,15 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
                         if (ret)
                                 goto out_unlock_bdev;
                 }
-                /* only one opener holds refs to the module and disk */
-                put_disk(disk);
-                module_put(owner);
         }
         bdev->bd_openers++;
         if (for_part)
                 bdev->bd_part_count++;
         mutex_unlock(&bdev->bd_mutex);
         disk_unblock_events(disk);
+        /* only one opener holds refs to the module and disk */
+        if (!first_open)
+                put_disk_and_module(disk);
         return 0;
 
  out_clear:
@@ -1546,8 +1565,7 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
  out_unlock_bdev:
         mutex_unlock(&bdev->bd_mutex);
         disk_unblock_events(disk);
-        put_disk(disk);
-        module_put(owner);
+        put_disk_and_module(disk);
  out:
         bdput(bdev);
 
@@ -1770,8 +1788,6 @@ static void __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part)
                         disk->fops->release(disk, mode);
         }
         if (!bdev->bd_openers) {
-                struct module *owner = disk->fops->owner;
-
                 disk_put_part(bdev->bd_part);
                 bdev->bd_part = NULL;
                 bdev->bd_disk = NULL;
@@ -1779,8 +1795,7 @@ static void __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part)
                         victim = bdev->bd_contains;
                 bdev->bd_contains = NULL;
 
-                put_disk(disk);
-                module_put(owner);
+                put_disk_and_module(disk);
         }
         mutex_unlock(&bdev->bd_mutex);
         bdput(bdev);
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index e4054e533f6d..26484648d090 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1264,7 +1264,16 @@ again:
         while (node) {
                 ref = rb_entry(node, struct prelim_ref, rbnode);
                 node = rb_next(&ref->rbnode);
-                WARN_ON(ref->count < 0);
+                /*
+                 * ref->count < 0 can happen here if there are delayed
+                 * refs with a node->action of BTRFS_DROP_DELAYED_REF.
+                 * prelim_ref_insert() relies on this when merging
+                 * identical refs to keep the overall count correct.
+                 * prelim_ref_insert() will merge only those refs
+                 * which compare identically.  Any refs having
+                 * e.g. different offsets would not be merged,
+                 * and would retain their original ref->count < 0.
+                 */
                 if (roots && ref->count && ref->root_id && ref->parent == 0) {
                         if (sc && sc->root_objectid &&
                             ref->root_id != sc->root_objectid) {
@@ -1510,6 +1519,7 @@ int btrfs_check_shared(struct btrfs_root *root, u64 inum, u64 bytenr)
                 if (!node)
                         break;
                 bytenr = node->val;
+                shared.share_count = 0;
                 cond_resched();
         }
 
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 1a462ab85c49..da308774b8a4 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2974,7 +2974,7 @@ static inline void free_fs_info(struct btrfs_fs_info *fs_info)
         kfree(fs_info->super_copy);
         kfree(fs_info->super_for_commit);
         security_free_mnt_opts(&fs_info->security_opts);
-        kfree(fs_info);
+        kvfree(fs_info);
 }
 
 /* tree mod log functions from ctree.c */
@@ -3095,7 +3095,10 @@ btrfs_lookup_inode_extref(struct btrfs_trans_handle *trans,
                           u64 inode_objectid, u64 ref_objectid, int ins_len,
                           int cow);
 
-int btrfs_find_name_in_ext_backref(struct btrfs_path *path,
+int btrfs_find_name_in_backref(struct extent_buffer *leaf, int slot,
+                               const char *name,
+                               int name_len, struct btrfs_inode_ref **ref_ret);
+int btrfs_find_name_in_ext_backref(struct extent_buffer *leaf, int slot,
                                    u64 ref_objectid, const char *name,
                                    int name_len,
                                    struct btrfs_inode_extref **extref_ret);
diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index a1a40cf382e3..7ab5e0128f0c 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -821,7 +821,8 @@ int btrfs_add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
         spin_unlock(&delayed_refs->lock);
 
         if (qrecord_inserted)
-                return btrfs_qgroup_trace_extent_post(fs_info, record);
+                btrfs_qgroup_trace_extent_post(fs_info, record);
+
         return 0;
 
 free_head_ref:
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 05751a677da4..c1618ab9fecf 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2147,6 +2147,10 @@ int btrfs_discard_extent(struct btrfs_fs_info *fs_info, u64 bytenr,
                         u64 bytes;
                         struct request_queue *req_q;
 
+                        if (!stripe->dev->bdev) {
+                                ASSERT(btrfs_test_opt(fs_info, DEGRADED));
+                                continue;
+                        }
                         req_q = bdev_get_queue(stripe->dev->bdev);
                         if (!blk_queue_discard(req_q))
                                 continue;
diff --git a/fs/btrfs/inode-item.c b/fs/btrfs/inode-item.c
index 39c968f80157..65e1a76bf755 100644
--- a/fs/btrfs/inode-item.c
+++ b/fs/btrfs/inode-item.c
@@ -22,10 +22,10 @@
 #include "transaction.h"
 #include "print-tree.h"
 
-static int find_name_in_backref(struct btrfs_path *path, const char *name,
-                         int name_len, struct btrfs_inode_ref **ref_ret)
+int btrfs_find_name_in_backref(struct extent_buffer *leaf, int slot,
+                               const char *name,
+                               int name_len, struct btrfs_inode_ref **ref_ret)
 {
-        struct extent_buffer *leaf;
         struct btrfs_inode_ref *ref;
         unsigned long ptr;
         unsigned long name_ptr;
@@ -33,9 +33,8 @@ static int find_name_in_backref(struct btrfs_path *path, const char *name,
         u32 cur_offset = 0;
         int len;
 
-        leaf = path->nodes[0];
-        item_size = btrfs_item_size_nr(leaf, path->slots[0]);
-        ptr = btrfs_item_ptr_offset(leaf, path->slots[0]);
+        item_size = btrfs_item_size_nr(leaf, slot);
+        ptr = btrfs_item_ptr_offset(leaf, slot);
         while (cur_offset < item_size) {
                 ref = (struct btrfs_inode_ref *)(ptr + cur_offset);
                 len = btrfs_inode_ref_name_len(leaf, ref);
@@ -44,18 +43,19 @@ static int find_name_in_backref(struct btrfs_path *path, const char *name,
                 if (len != name_len)
                         continue;
                 if (memcmp_extent_buffer(leaf, name, name_ptr, name_len) == 0) {
-                        *ref_ret = ref;
+                        if (ref_ret)
+                                *ref_ret = ref;
                         return 1;
                 }
         }
         return 0;
 }
 
-int btrfs_find_name_in_ext_backref(struct btrfs_path *path, u64 ref_objectid,
+int btrfs_find_name_in_ext_backref(struct extent_buffer *leaf, int slot,
+                                   u64 ref_objectid,
                                    const char *name, int name_len,
                                    struct btrfs_inode_extref **extref_ret)
 {
-        struct extent_buffer *leaf;
         struct btrfs_inode_extref *extref;
         unsigned long ptr;
         unsigned long name_ptr;
@@ -63,9 +63,8 @@ int btrfs_find_name_in_ext_backref(struct btrfs_path *path, u64 ref_objectid,
         u32 cur_offset = 0;
         int ref_name_len;
 
-        leaf = path->nodes[0];
-        item_size = btrfs_item_size_nr(leaf, path->slots[0]);
-        ptr = btrfs_item_ptr_offset(leaf, path->slots[0]);
+        item_size = btrfs_item_size_nr(leaf, slot);
+        ptr = btrfs_item_ptr_offset(leaf, slot);
 
         /*
          * Search all extended backrefs in this item. We're only
@@ -113,7 +112,9 @@ btrfs_lookup_inode_extref(struct btrfs_trans_handle *trans,
                 return ERR_PTR(ret);
         if (ret > 0)
                 return NULL;
-        if (!btrfs_find_name_in_ext_backref(path, ref_objectid, name, name_len, &extref))
+        if (!btrfs_find_name_in_ext_backref(path->nodes[0], path->slots[0],
+                                            ref_objectid, name, name_len,
+                                            &extref))
                 return NULL;
         return extref;
 }
@@ -155,7 +156,8 @@ static int btrfs_del_inode_extref(struct btrfs_trans_handle *trans,
          * This should always succeed so error here will make the FS
          * readonly.
          */
-        if (!btrfs_find_name_in_ext_backref(path, ref_objectid,
+        if (!btrfs_find_name_in_ext_backref(path->nodes[0], path->slots[0],
+                                            ref_objectid,
                                             name, name_len, &extref)) {
                 btrfs_handle_fs_error(root->fs_info, -ENOENT, NULL);
                 ret = -EROFS;
@@ -225,7 +227,8 @@ int btrfs_del_inode_ref(struct btrfs_trans_handle *trans,
         } else if (ret < 0) {
                 goto out;
         }
-        if (!find_name_in_backref(path, name, name_len, &ref)) {
+        if (!btrfs_find_name_in_backref(path->nodes[0], path->slots[0],
+                                        name, name_len, &ref)) {
                 ret = -ENOENT;
                 search_ext_refs = 1;
                 goto out;
@@ -293,7 +296,9 @@ static int btrfs_insert_inode_extref(struct btrfs_trans_handle *trans,
         ret = btrfs_insert_empty_item(trans, root, path, &key,
                                       ins_len);
         if (ret == -EEXIST) {
-                if (btrfs_find_name_in_ext_backref(path, ref_objectid,
+                if (btrfs_find_name_in_ext_backref(path->nodes[0],
+                                                   path->slots[0],
+                                                   ref_objectid,
                                                    name, name_len, NULL))
                         goto out;
 
@@ -351,7 +356,8 @@ int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
         if (ret == -EEXIST) {
                 u32 old_size;
 
-                if (find_name_in_backref(path, name, name_len, &ref))
+                if (btrfs_find_name_in_backref(path->nodes[0], path->slots[0],
+                                               name, name_len, &ref))
                         goto out;
 
                 old_size = btrfs_item_size_nr(path->nodes[0], path->slots[0]);
@@ -365,7 +371,9 @@ int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
                 ret = 0;
         } else if (ret < 0) {
                 if (ret == -EOVERFLOW) {
-                        if (find_name_in_backref(path, name, name_len, &ref))
+                        if (btrfs_find_name_in_backref(path->nodes[0],
+                                                       path->slots[0],
+                                                       name, name_len, &ref))
                                 ret = -EEXIST;
                         else
                                 ret = -EMLINK;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 53ca025655fc..f53470112670 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1335,8 +1335,11 @@ next_slot:
                 leaf = path->nodes[0];
                 if (path->slots[0] >= btrfs_header_nritems(leaf)) {
                         ret = btrfs_next_leaf(root, path);
-                        if (ret < 0)
+                        if (ret < 0) {
+                                if (cow_start != (u64)-1)
+                                        cur_offset = cow_start;
                                 goto error;
+                        }
                         if (ret > 0)
                                 break;
                         leaf = path->nodes[0];
@@ -2040,12 +2043,15 @@ static noinline int add_pending_csums(struct btrfs_trans_handle *trans,
                              struct inode *inode, struct list_head *list)
 {
         struct btrfs_ordered_sum *sum;
+        int ret;
 
         list_for_each_entry(sum, list, list) {
                 trans->adding_csums = true;
-                btrfs_csum_file_blocks(trans,
+                ret = btrfs_csum_file_blocks(trans,
                        BTRFS_I(inode)->root->fs_info->csum_root, sum);
                 trans->adding_csums = false;
+                if (ret)
+                        return ret;
         }
         return 0;
 }
@@ -3059,7 +3065,11 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
                 goto out;
         }
 
-        add_pending_csums(trans, inode, &ordered_extent->list);
+        ret = add_pending_csums(trans, inode, &ordered_extent->list);
+        if (ret) {
+                btrfs_abort_transaction(trans, ret);
+                goto out;
+        }
 
         btrfs_ordered_update_i_size(inode, 0, ordered_extent);
         ret = btrfs_update_inode_fallback(trans, root, inode);
@@ -3385,6 +3395,11 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans,
                 ret = btrfs_orphan_reserve_metadata(trans, inode);
                 ASSERT(!ret);
                 if (ret) {
+                        /*
+                         * dec doesn't need spin_lock as ->orphan_block_rsv
+                         * would be released only if ->orphan_inodes is
+                         * zero.
+                         */
                         atomic_dec(&root->orphan_inodes);
                         clear_bit(BTRFS_INODE_ORPHAN_META_RESERVED,
                                   &inode->runtime_flags);
@@ -3399,12 +3414,17 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans,
         if (insert >= 1) {
                 ret = btrfs_insert_orphan_item(trans, root, btrfs_ino(inode));
                 if (ret) {
-                        atomic_dec(&root->orphan_inodes);
                         if (reserve) {
                                 clear_bit(BTRFS_INODE_ORPHAN_META_RESERVED,
                                           &inode->runtime_flags);
                                 btrfs_orphan_release_metadata(inode);
                         }
+                        /*
+                         * btrfs_orphan_commit_root may race with us and set
+                         * ->orphan_block_rsv to zero, in order to avoid that,
+                         * decrease ->orphan_inodes after everything is done.
+                         */
+                        atomic_dec(&root->orphan_inodes);
                         if (ret != -EEXIST) {
                                 clear_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
                                           &inode->runtime_flags);
@@ -3436,28 +3456,26 @@ static int btrfs_orphan_del(struct btrfs_trans_handle *trans,
 {
         struct btrfs_root *root = inode->root;
         int delete_item = 0;
-        int release_rsv = 0;
         int ret = 0;
 
-        spin_lock(&root->orphan_lock);
         if (test_and_clear_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
                                &inode->runtime_flags))
                 delete_item = 1;
 
+        if (delete_item && trans)
+                ret = btrfs_del_orphan_item(trans, root, btrfs_ino(inode));
+
         if (test_and_clear_bit(BTRFS_INODE_ORPHAN_META_RESERVED,
                                &inode->runtime_flags))
-                release_rsv = 1;
-        spin_unlock(&root->orphan_lock);
+                btrfs_orphan_release_metadata(inode);
 
-        if (delete_item) {
+        /*
+         * btrfs_orphan_commit_root may race with us and set ->orphan_block_rsv
+         * to zero, in order to avoid that, decrease ->orphan_inodes after
+         * everything is done.
+         */
+        if (delete_item)
                 atomic_dec(&root->orphan_inodes);
-                if (trans)
-                        ret = btrfs_del_orphan_item(trans, root,
-                                                    btrfs_ino(inode));
-        }
-
-        if (release_rsv)
-                btrfs_orphan_release_metadata(inode);
 
         return ret;
 }
@@ -5281,7 +5299,7 @@ void btrfs_evict_inode(struct inode *inode)
         trace_btrfs_inode_evict(inode);
 
         if (!root) {
-                kmem_cache_free(btrfs_inode_cachep, BTRFS_I(inode));
+                clear_inode(inode);
                 return;
         }
 
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 9e61dd624f7b..aa259d6986e1 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1442,8 +1442,13 @@ int btrfs_qgroup_trace_extent_post(struct btrfs_fs_info *fs_info,
         int ret;
 
         ret = btrfs_find_all_roots(NULL, fs_info, bytenr, 0, &old_root, false);
-        if (ret < 0)
-                return ret;
+        if (ret < 0) {
+                fs_info->qgroup_flags |= BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT;
+                btrfs_warn(fs_info,
+"error accounting new delayed refs extent (err code: %d), quota inconsistent",
+                        ret);
+                return 0;
+        }
 
         /*
          * Here we don't need to get the lock of
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index dec0907dfb8a..fcfc20de2df3 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1370,6 +1370,7 @@ static int find_bio_stripe(struct btrfs_raid_bio *rbio,
                 stripe_start = stripe->physical;
                 if (physical >= stripe_start &&
                     physical < stripe_start + rbio->stripe_len &&
+                    stripe->dev->bdev &&
                     bio->bi_disk == stripe->dev->bdev->bd_disk &&
                     bio->bi_partno == stripe->dev->bdev->bd_partno) {
                         return i;
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index f0c3f00e97cb..cd2298d185dd 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3268,8 +3268,22 @@ static int relocate_file_extent_cluster(struct inode *inode,
                         nr++;
                 }
 
-                btrfs_set_extent_delalloc(inode, page_start, page_end, 0, NULL,
-                                          0);
+                ret = btrfs_set_extent_delalloc(inode, page_start, page_end, 0,
+                                                NULL, 0);
+                if (ret) {
+                        unlock_page(page);
+                        put_page(page);
+                        btrfs_delalloc_release_metadata(BTRFS_I(inode),
+                                                         PAGE_SIZE);
+                        btrfs_delalloc_release_extents(BTRFS_I(inode),
+                                                       PAGE_SIZE);
+
+                        clear_extent_bits(&BTRFS_I(inode)->io_tree,
+                                          page_start, page_end,
+                                          EXTENT_LOCKED | EXTENT_BOUNDARY);
+                        goto out;
+
+                }
                 set_page_dirty(page);
 
                 unlock_extent(&BTRFS_I(inode)->io_tree,
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index f306c608dc28..484e2af793de 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -5005,6 +5005,9 @@ static int send_hole(struct send_ctx *sctx, u64 end)
         u64 len;
         int ret = 0;
 
+        if (sctx->flags & BTRFS_SEND_FLAG_NO_FILE_DATA)
+                return send_update_extent(sctx, offset, end - offset);
+
         p = fs_path_alloc();
         if (!p)
                 return -ENOMEM;
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 6e71a2a78363..4b817947e00f 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1545,7 +1545,7 @@ static struct dentry *btrfs_mount_root(struct file_system_type *fs_type,
          * it for searching for existing supers, so this lets us do that and
          * then open_ctree will properly initialize everything later.
          */
-        fs_info = kzalloc(sizeof(struct btrfs_fs_info), GFP_KERNEL);
+        fs_info = kvzalloc(sizeof(struct btrfs_fs_info), GFP_KERNEL);
         if (!fs_info) {
                 error = -ENOMEM;
                 goto error_sec_opts;
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index afadaadab18e..434457794c27 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -29,6 +29,7 @@
 #include "hash.h"
 #include "compression.h"
 #include "qgroup.h"
+#include "inode-map.h"
 
 /* magic values for the inode_only field in btrfs_log_inode:
  *
@@ -966,7 +967,9 @@ static noinline int backref_in_log(struct btrfs_root *log,
         ptr = btrfs_item_ptr_offset(path->nodes[0], path->slots[0]);
 
         if (key->type == BTRFS_INODE_EXTREF_KEY) {
-                if (btrfs_find_name_in_ext_backref(path, ref_objectid,
+                if (btrfs_find_name_in_ext_backref(path->nodes[0],
+                                                   path->slots[0],
+                                                   ref_objectid,
                                                    name, namelen, NULL))
                         match = 1;
 
@@ -1190,7 +1193,8 @@ static int extref_get_fields(struct extent_buffer *eb, unsigned long ref_ptr,
         read_extent_buffer(eb, *name, (unsigned long)&extref->name,
                            *namelen);
 
-        *index = btrfs_inode_extref_index(eb, extref);
+        if (index)
+                *index = btrfs_inode_extref_index(eb, extref);
         if (parent_objectid)
                 *parent_objectid = btrfs_inode_extref_parent(eb, extref);
 
@@ -1211,12 +1215,102 @@ static int ref_get_fields(struct extent_buffer *eb, unsigned long ref_ptr,
 
         read_extent_buffer(eb, *name, (unsigned long)(ref + 1), *namelen);
 
-        *index = btrfs_inode_ref_index(eb, ref);
+        if (index)
+                *index = btrfs_inode_ref_index(eb, ref);
 
         return 0;
 }
 
 /*
+ * Take an inode reference item from the log tree and iterate all names from the
+ * inode reference item in the subvolume tree with the same key (if it exists).
+ * For any name that is not in the inode reference item from the log tree, do a
+ * proper unlink of that name (that is, remove its entry from the inode
+ * reference item and both dir index keys).
+ */
+static int unlink_old_inode_refs(struct btrfs_trans_handle *trans,
+                                 struct btrfs_root *root,
+                                 struct btrfs_path *path,
+                                 struct btrfs_inode *inode,
+                                 struct extent_buffer *log_eb,
+                                 int log_slot,
+                                 struct btrfs_key *key)
+{
+        int ret;
+        unsigned long ref_ptr;
+        unsigned long ref_end;
+        struct extent_buffer *eb;
+
+again:
+        btrfs_release_path(path);
+        ret = btrfs_search_slot(NULL, root, key, path, 0, 0);
+        if (ret > 0) {
+                ret = 0;
+                goto out;
+        }
+        if (ret < 0)
+                goto out;
+
+        eb = path->nodes[0];
+        ref_ptr = btrfs_item_ptr_offset(eb, path->slots[0]);
+        ref_end = ref_ptr + btrfs_item_size_nr(eb, path->slots[0]);
+        while (ref_ptr < ref_end) {
+                char *name = NULL;
+                int namelen;
+                u64 parent_id;
+
+                if (key->type == BTRFS_INODE_EXTREF_KEY) {
+                        ret = extref_get_fields(eb, ref_ptr, &namelen, &name,
+                                                NULL, &parent_id);
+                } else {
+                        parent_id = key->offset;
+                        ret = ref_get_fields(eb, ref_ptr, &namelen, &name,
+                                             NULL);
+                }
+                if (ret)
+                        goto out;
+
+                if (key->type == BTRFS_INODE_EXTREF_KEY)
+                        ret = btrfs_find_name_in_ext_backref(log_eb, log_slot,
+                                                             parent_id, name,
+                                                             namelen, NULL);
+                else
+                        ret = btrfs_find_name_in_backref(log_eb, log_slot, name,
+                                                         namelen, NULL);
+
+                if (!ret) {
+                        struct inode *dir;
+
+                        btrfs_release_path(path);
+                        dir = read_one_inode(root, parent_id);
+                        if (!dir) {
+                                ret = -ENOENT;
+                                kfree(name);
+                                goto out;
+                        }
+                        ret = btrfs_unlink_inode(trans, root, BTRFS_I(dir),
+                                                 inode, name, namelen);
+                        kfree(name);
+                        iput(dir);
+                        if (ret)
+                                goto out;
+                        goto again;
+                }
+
+                kfree(name);
+                ref_ptr += namelen;
+                if (key->type == BTRFS_INODE_EXTREF_KEY)
+                        ref_ptr += sizeof(struct btrfs_inode_extref);
+                else
+                        ref_ptr += sizeof(struct btrfs_inode_ref);
+        }
+        ret = 0;
+ out:
+        btrfs_release_path(path);
+        return ret;
+}
+
+/*
  * replay one inode back reference item found in the log tree.
  * eb, slot and key refer to the buffer and key found in the log tree.
  * root is the destination we are replaying into, and path is for temp
@@ -1344,6 +1438,19 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
                 }
         }
 
+        /*
+         * Before we overwrite the inode reference item in the subvolume tree
+         * with the item from the log tree, we must unlink all names from the
+         * parent directory that are in the subvolume's tree inode reference
+         * item, otherwise we end up with an inconsistent subvolume tree where
+         * dir index entries exist for a name but there is no inode reference
+         * item with the same name.
+         */
+        ret = unlink_old_inode_refs(trans, root, path, BTRFS_I(inode), eb, slot,
+                                    key);
+        if (ret)
+                goto out;
+
         /* finally write the back reference in the inode */
         ret = overwrite_item(trans, root, path, eb, slot, key);
 out:
@@ -2472,6 +2579,9 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
                                         clean_tree_block(fs_info, next);
                                         btrfs_wait_tree_block_writeback(next);
                                         btrfs_tree_unlock(next);
+                                } else {
+                                        if (test_and_clear_bit(EXTENT_BUFFER_DIRTY, &next->bflags))
+                                                clear_extent_buffer_dirty(next);
                                 }
 
                                 WARN_ON(root_owner !=
@@ -2552,6 +2662,9 @@ static noinline int walk_up_log_tree(struct btrfs_trans_handle *trans,
                                         clean_tree_block(fs_info, next);
                                         btrfs_wait_tree_block_writeback(next);
                                         btrfs_tree_unlock(next);
+                                } else {
+                                        if (test_and_clear_bit(EXTENT_BUFFER_DIRTY, &next->bflags))
+                                                clear_extent_buffer_dirty(next);
                                 }
 
                                 WARN_ON(root_owner != BTRFS_TREE_LOG_OBJECTID);
@@ -2630,6 +2743,9 @@ static int walk_log_tree(struct btrfs_trans_handle *trans,
                                 clean_tree_block(fs_info, next);
                                 btrfs_wait_tree_block_writeback(next);
                                 btrfs_tree_unlock(next);
+                        } else {
+                                if (test_and_clear_bit(EXTENT_BUFFER_DIRTY, &next->bflags))
+                                        clear_extent_buffer_dirty(next);
                         }
 
                         WARN_ON(log->root_key.objectid !=
@@ -3018,13 +3134,14 @@ static void free_log_tree(struct btrfs_trans_handle *trans,
 
         while (1) {
                 ret = find_first_extent_bit(&log->dirty_log_pages,
-                                0, &start, &end, EXTENT_DIRTY | EXTENT_NEW,
+                                0, &start, &end,
+                                EXTENT_DIRTY | EXTENT_NEW | EXTENT_NEED_WAIT,
                                 NULL);
                 if (ret)
                         break;
 
                 clear_extent_bits(&log->dirty_log_pages, start, end,
-                                  EXTENT_DIRTY | EXTENT_NEW);
+                                  EXTENT_DIRTY | EXTENT_NEW | EXTENT_NEED_WAIT);
         }
 
         /*
@@ -5677,6 +5794,23 @@ again:
                                                       path);
                 }
 
+                if (!ret && wc.stage == LOG_WALK_REPLAY_ALL) {
+                        struct btrfs_root *root = wc.replay_dest;
+
+                        btrfs_release_path(path);
+
+                        /*
+                         * We have just replayed everything, and the highest
+                         * objectid of fs roots probably has changed in case
+                         * some inode_item's got replayed.
+                         *
+                         * root->objectid_mutex is not acquired as log replay
+                         * could only happen during mount.
+                         */
+                        ret = btrfs_find_highest_objectid(root,
+                                                  &root->highest_objectid);
+                }
+
                 key.offset = found_key.offset - 1;
                 wc.replay_dest->log_root = NULL;
                 free_extent_buffer(log->node);
@@ -5825,7 +5959,7 @@ int btrfs_log_new_name(struct btrfs_trans_handle *trans,
          * this will force the logging code to walk the dentry chain
          * up for the file
          */
-        if (S_ISREG(inode->vfs_inode.i_mode))
+        if (!S_ISDIR(inode->vfs_inode.i_mode))
                 inode->last_unlink_trans = trans->transid;
 
         /*
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index b5036bd69e6a..b2d05c6b1c56 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -645,6 +645,7 @@ static void btrfs_free_stale_devices(const char *path,
                                 btrfs_sysfs_remove_fsid(fs_devs);
                                 list_del(&fs_devs->list);
                                 free_fs_devices(fs_devs);
+                                break;
                         } else {
                                 fs_devs->num_devices--;
                                 list_del(&dev->dev_list);
@@ -4828,10 +4829,13 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
         ndevs = min(ndevs, devs_max);
 
         /*
-         * the primary goal is to maximize the number of stripes, so use as many
-         * devices as possible, even if the stripes are not maximum sized.
+         * The primary goal is to maximize the number of stripes, so use as
+         * many devices as possible, even if the stripes are not maximum sized.
+         *
+         * The DUP profile stores more than one stripe per device, the
+         * max_avail is the total size so we have to adjust.
          */
-        stripe_size = devices_info[ndevs-1].max_avail;
+        stripe_size = div_u64(devices_info[ndevs - 1].max_avail, dev_stripes);
         num_stripes = ndevs * dev_stripes;
 
         /*
@@ -4866,8 +4870,6 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
                         stripe_size = devices_info[ndevs-1].max_avail;
         }
 
-        stripe_size = div_u64(stripe_size, dev_stripes);
-
         /* align to BTRFS_STRIPE_LEN */
         stripe_size = round_down(stripe_size, BTRFS_STRIPE_LEN);
 
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 6582c4507e6c..0e5bd3e3344e 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -3965,6 +3965,32 @@ void ceph_put_fmode(struct ceph_inode_info *ci, int fmode)
 }
 
 /*
+ * For a soon-to-be unlinked file, drop the AUTH_RDCACHE caps. If it
+ * looks like the link count will hit 0, drop any other caps (other
+ * than PIN) we don't specifically want (due to the file still being
+ * open).
+ */
+int ceph_drop_caps_for_unlink(struct inode *inode)
+{
+        struct ceph_inode_info *ci = ceph_inode(inode);
+        int drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL;
+
+        spin_lock(&ci->i_ceph_lock);
+        if (inode->i_nlink == 1) {
+                drop |= ~(__ceph_caps_wanted(ci) | CEPH_CAP_PIN);
+
+                ci->i_ceph_flags |= CEPH_I_NODELAY;
+                if (__ceph_caps_dirty(ci)) {
+                        struct ceph_mds_client *mdsc =
+                                ceph_inode_to_client(inode)->mdsc;
+                        __cap_delay_requeue_front(mdsc, ci);
+                }
+        }
+        spin_unlock(&ci->i_ceph_lock);
+        return drop;
+}
+
+/*
  * Helpers for embedding cap and dentry lease releases into mds
  * requests.
  *
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 0c4346806e17..f1d9c6cc0491 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1003,26 +1003,6 @@ static int ceph_link(struct dentry *old_dentry, struct inode *dir,
 }
 
 /*
- * For a soon-to-be unlinked file, drop the AUTH_RDCACHE caps.  If it
- * looks like the link count will hit 0, drop any other caps (other
- * than PIN) we don't specifically want (due to the file still being
- * open).
- */
-static int drop_caps_for_unlink(struct inode *inode)
-{
-        struct ceph_inode_info *ci = ceph_inode(inode);
-        int drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL;
-
-        spin_lock(&ci->i_ceph_lock);
-        if (inode->i_nlink == 1) {
-                drop |= ~(__ceph_caps_wanted(ci) | CEPH_CAP_PIN);
-                ci->i_ceph_flags |= CEPH_I_NODELAY;
-        }
-        spin_unlock(&ci->i_ceph_lock);
-        return drop;
-}
-
-/*
  * rmdir and unlink are differ only by the metadata op code
  */
 static int ceph_unlink(struct inode *dir, struct dentry *dentry)
@@ -1056,7 +1036,7 @@ static int ceph_unlink(struct inode *dir, struct dentry *dentry)
         set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags);
         req->r_dentry_drop = CEPH_CAP_FILE_SHARED;
         req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
-        req->r_inode_drop = drop_caps_for_unlink(inode);
+        req->r_inode_drop = ceph_drop_caps_for_unlink(inode);
         err = ceph_mdsc_do_request(mdsc, dir, req);
         if (!err && !req->r_reply_info.head->is_dentry)
                 d_delete(dentry);
@@ -1104,8 +1084,10 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry,
         req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
         /* release LINK_RDCACHE on source inode (mds will lock it) */
         req->r_old_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL;
-        if (d_really_is_positive(new_dentry))
-                req->r_inode_drop = drop_caps_for_unlink(d_inode(new_dentry));
+        if (d_really_is_positive(new_dentry)) {
+                req->r_inode_drop =
+                        ceph_drop_caps_for_unlink(d_inode(new_dentry));
+        }
         err = ceph_mdsc_do_request(mdsc, old_dir, req);
         if (!err && !req->r_reply_info.head->is_dentry) {
                 /*
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index a62d2a9841dc..fb2bc9c15a23 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -225,6 +225,7 @@ static int parse_fsopt_token(char *c, void *private)
                         return -ENOMEM;
                 break;
         case Opt_mds_namespace:
+                kfree(fsopt->mds_namespace);
                 fsopt->mds_namespace = kstrndup(argstr[0].from,
                                                 argstr[0].to-argstr[0].from,
                                                 GFP_KERNEL);
@@ -232,6 +233,7 @@ static int parse_fsopt_token(char *c, void *private)
                         return -ENOMEM;
                 break;
         case Opt_fscache_uniq:
+                kfree(fsopt->fscache_uniq);
                 fsopt->fscache_uniq = kstrndup(argstr[0].from,
                                                argstr[0].to-argstr[0].from,
                                                GFP_KERNEL);
@@ -711,14 +713,17 @@ static int __init init_caches(void)
                 goto bad_dentry;
 
         ceph_file_cachep = KMEM_CACHE(ceph_file_info, SLAB_MEM_SPREAD);
-
         if (!ceph_file_cachep)
                 goto bad_file;
 
-        if ((error = ceph_fscache_register()))
-                goto bad_file;
+        error = ceph_fscache_register();
+        if (error)
+                goto bad_fscache;
 
         return 0;
+
+bad_fscache:
+        kmem_cache_destroy(ceph_file_cachep);
 bad_file:
         kmem_cache_destroy(ceph_dentry_cachep);
 bad_dentry:
@@ -836,7 +841,6 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc)
         int err;
         unsigned long started = jiffies;  /* note the start time */
         struct dentry *root;
-        int first = 0;   /* first vfsmount for this super_block */
 
         dout("mount start %p\n", fsc);
         mutex_lock(&fsc->client->mount_mutex);
@@ -861,17 +865,17 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc)
                         path = fsc->mount_options->server_path + 1;
                         dout("mount opening path %s\n", path);
                 }
+
+                err = ceph_fs_debugfs_init(fsc);
+                if (err < 0)
+                        goto out;
+
                 root = open_root_dentry(fsc, path, started);
                 if (IS_ERR(root)) {
                         err = PTR_ERR(root);
                         goto out;
                 }
                 fsc->sb->s_root = dget(root);
-                first = 1;
-
-                err = ceph_fs_debugfs_init(fsc);
-                if (err < 0)
-                        goto fail;
         } else {
                 root = dget(fsc->sb->s_root);
         }
@@ -881,11 +885,6 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc)
         mutex_unlock(&fsc->client->mount_mutex);
         return root;
 
-fail:
-        if (first) {
-                dput(fsc->sb->s_root);
-                fsc->sb->s_root = NULL;
-        }
 out:
         mutex_unlock(&fsc->client->mount_mutex);
         return ERR_PTR(err);
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 21b2e5b004eb..1c2086e0fec2 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -987,7 +987,7 @@ extern void ceph_check_caps(struct ceph_inode_info *ci, int flags,
                             struct ceph_mds_session *session);
 extern void ceph_check_delayed_caps(struct ceph_mds_client *mdsc);
 extern void ceph_flush_dirty_caps(struct ceph_mds_client *mdsc);
-
+extern int  ceph_drop_caps_for_unlink(struct inode *inode);
 extern int ceph_encode_inode_release(void **p, struct inode *inode,
                                      int mds, int drop, int unless, int force);
 extern int ceph_encode_dentry_release(void **p, struct dentry *dn,
diff --git a/fs/dcache.c b/fs/dcache.c
index 7c38f39958bc..8945e6cabd93 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -647,11 +647,16 @@ again:
                 spin_unlock(&parent->d_lock);
                 goto again;
         }
-        rcu_read_unlock();
-        if (parent != dentry)
+        if (parent != dentry) {
                 spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
-        else
+                if (unlikely(dentry->d_lockref.count < 0)) {
+                        spin_unlock(&parent->d_lock);
+                        parent = NULL;
+                }
+        } else {
                 parent = NULL;
+        }
+        rcu_read_unlock();
         return parent;
 }
 
@@ -2474,7 +2479,7 @@ struct dentry *d_alloc_parallel(struct dentry *parent,
 
 retry:
         rcu_read_lock();
-        seq = smp_load_acquire(&parent->d_inode->i_dir_seq) & ~1;
+        seq = smp_load_acquire(&parent->d_inode->i_dir_seq);
         r_seq = read_seqbegin(&rename_lock);
         dentry = __d_lookup_rcu(parent, name, &d_seq);
         if (unlikely(dentry)) {
@@ -2495,8 +2500,14 @@ retry:
                 rcu_read_unlock();
                 goto retry;
         }
+
+        if (unlikely(seq & 1)) {
+                rcu_read_unlock();
+                goto retry;
+        }
+
         hlist_bl_lock(b);
-        if (unlikely(parent->d_inode->i_dir_seq != seq)) {
+        if (unlikely(READ_ONCE(parent->d_inode->i_dir_seq) != seq)) {
                 hlist_bl_unlock(b);
                 rcu_read_unlock();
                 goto retry;
diff --git a/fs/direct-io.c b/fs/direct-io.c
index a0ca9e48e993..1357ef563893 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1274,8 +1274,7 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
          */
         if (dio->is_async && iov_iter_rw(iter) == WRITE) {
                 retval = 0;
-                if ((iocb->ki_filp->f_flags & O_DSYNC) ||
-                    IS_SYNC(iocb->ki_filp->f_mapping->host))
+                if (iocb->ki_flags & IOCB_DSYNC)
                         retval = dio_set_defer_completion(dio);
                 else if (!dio->inode->i_sb->s_dio_done_wq) {
                         /*
diff --git a/fs/efivarfs/file.c b/fs/efivarfs/file.c
index 5f22e74bbade..8e568428c88b 100644
--- a/fs/efivarfs/file.c
+++ b/fs/efivarfs/file.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/efi.h>
+#include <linux/delay.h>
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/mount.h>
@@ -74,6 +75,11 @@ static ssize_t efivarfs_file_read(struct file *file, char __user *userbuf,
         ssize_t size = 0;
         int err;
 
+        while (!__ratelimit(&file->f_cred->user->ratelimit)) {
+                if (!msleep_interruptible(50))
+                        return -EINTR;
+        }
+
         err = efivar_entry_size(var, &datasize);
 
         /*
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 86863792f36a..51f940e76c5e 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -716,7 +716,7 @@ int gfs2_iomap_begin(struct inode *inode, loff_t pos, loff_t length,
         __be64 *ptr;
         sector_t lblock;
         sector_t lend;
-        int ret;
+        int ret = 0;
         int eob;
         unsigned int len;
         struct buffer_head *bh;
@@ -728,12 +728,14 @@ int gfs2_iomap_begin(struct inode *inode, loff_t pos, loff_t length,
                 goto out;
         }
 
-        if ((flags & IOMAP_REPORT) && gfs2_is_stuffed(ip)) {
-                gfs2_stuffed_iomap(inode, iomap);
-                if (pos >= iomap->length)
-                        return -ENOENT;
-                ret = 0;
-                goto out;
+        if (gfs2_is_stuffed(ip)) {
+                if (flags & IOMAP_REPORT) {
+                        gfs2_stuffed_iomap(inode, iomap);
+                        if (pos >= iomap->length)
+                                ret = -ENOENT;
+                        goto out;
+                }
+                BUG_ON(!(flags & IOMAP_WRITE));
         }
 
         lblock = pos >> inode->i_blkbits;
@@ -744,7 +746,7 @@ int gfs2_iomap_begin(struct inode *inode, loff_t pos, loff_t length,
         iomap->type = IOMAP_HOLE;
         iomap->length = (u64)(lend - lblock) << inode->i_blkbits;
         iomap->flags = IOMAP_F_MERGED;
-        bmap_lock(ip, 0);
+        bmap_lock(ip, flags & IOMAP_WRITE);
 
         /*
          * Directory data blocks have a struct gfs2_meta_header header, so the
@@ -787,27 +789,25 @@ int gfs2_iomap_begin(struct inode *inode, loff_t pos, loff_t length,
                 iomap->flags |= IOMAP_F_BOUNDARY;
         iomap->length = (u64)len << inode->i_blkbits;
 
-        ret = 0;
-
 out_release:
         release_metapath(&mp);
-        bmap_unlock(ip, 0);
+        bmap_unlock(ip, flags & IOMAP_WRITE);
 out:
         trace_gfs2_iomap_end(ip, iomap, ret);
         return ret;
 
 do_alloc:
-        if (!(flags & IOMAP_WRITE)) {
-                if (pos >= i_size_read(inode)) {
+        if (flags & IOMAP_WRITE) {
+                ret = gfs2_iomap_alloc(inode, iomap, flags, &mp);
+        } else if (flags & IOMAP_REPORT) {
+                loff_t size = i_size_read(inode);
+                if (pos >= size)
                         ret = -ENOENT;
-                        goto out_release;
-                }
-                ret = 0;
-                iomap->length = hole_size(inode, lblock, &mp);
-                goto out_release;
+                else if (height <= ip->i_height)
+                        iomap->length = hole_size(inode, lblock, &mp);
+                else
+                        iomap->length = size - pos;
         }
-
-        ret = gfs2_iomap_alloc(inode, iomap, flags, &mp);
         goto out_release;
 }
 
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 8fe1b0aa2896..b9a254dcc0e7 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -108,6 +108,16 @@ static void huge_pagevec_release(struct pagevec *pvec)
         pagevec_reinit(pvec);
 }
 
+/*
+ * Mask used when checking the page offset value passed in via system
+ * calls.  This value will be converted to a loff_t which is signed.
+ * Therefore, we want to check the upper PAGE_SHIFT + 1 bits of the
+ * value.  The extra bit (- 1 in the shift value) is to take the sign
+ * bit into account.
+ */
+#define PGOFF_LOFFT_MAX \
+        (((1UL << (PAGE_SHIFT + 1)) - 1) <<  (BITS_PER_LONG - (PAGE_SHIFT + 1)))
+
 static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 {
         struct inode *inode = file_inode(file);
@@ -127,12 +137,13 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
         vma->vm_ops = &hugetlb_vm_ops;
 
         /*
-         * Offset passed to mmap (before page shift) could have been
-         * negative when represented as a (l)off_t.
+         * page based offset in vm_pgoff could be sufficiently large to
+         * overflow a (l)off_t when converted to byte offset.
          */
-        if (((loff_t)vma->vm_pgoff << PAGE_SHIFT) < 0)
+        if (vma->vm_pgoff & PGOFF_LOFFT_MAX)
                 return -EINVAL;
 
+        /* must be huge page aligned */
         if (vma->vm_pgoff & (~huge_page_mask(h) >> PAGE_SHIFT))
                 return -EINVAL;
 
diff --git a/fs/namei.c b/fs/namei.c
index 921ae32dbc80..cafa365eeb70 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -559,9 +559,10 @@ static int __nd_alloc_stack(struct nameidata *nd)
 static bool path_connected(const struct path *path)
 {
         struct vfsmount *mnt = path->mnt;
+        struct super_block *sb = mnt->mnt_sb;
 
-        /* Only bind mounts can have disconnected paths */
-        if (mnt->mnt_root == mnt->mnt_sb->s_root)
+        /* Bind mounts and multi-root filesystems can have disconnected paths */
+        if (!(sb->s_iflags & SB_I_MULTIROOT) && (mnt->mnt_root == sb->s_root))
                 return true;
 
         return is_subdir(path->dentry, mnt->mnt_root);
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 2435af56b87e..a50d7813e3ea 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -572,7 +572,7 @@ out:
 }
 
 static bool
-validate_bitmap_values(unsigned long mask)
+validate_bitmap_values(unsigned int mask)
 {
         return (mask & ~RCA4_TYPE_MASK_ALL) == 0;
 }
@@ -596,17 +596,15 @@ __be32 nfs4_callback_recallany(void *argp, void *resp,
                 goto out;
 
         status = cpu_to_be32(NFS4_OK);
-        if (test_bit(RCA4_TYPE_MASK_RDATA_DLG, (const unsigned long *)
-                     &args->craa_type_mask))
+        if (args->craa_type_mask & BIT(RCA4_TYPE_MASK_RDATA_DLG))
                 flags = FMODE_READ;
-        if (test_bit(RCA4_TYPE_MASK_WDATA_DLG, (const unsigned long *)
-                     &args->craa_type_mask))
+        if (args->craa_type_mask & BIT(RCA4_TYPE_MASK_WDATA_DLG))
                 flags |= FMODE_WRITE;
-        if (test_bit(RCA4_TYPE_MASK_FILE_LAYOUT, (const unsigned long *)
-                     &args->craa_type_mask))
-                pnfs_recall_all_layouts(cps->clp);
         if (flags)
                 nfs_expire_unused_delegation_types(cps->clp, flags);
+
+        if (args->craa_type_mask & BIT(RCA4_TYPE_MASK_FILE_LAYOUT))
+                pnfs_recall_all_layouts(cps->clp);
 out:
         dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
         return status;
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 8c10b0562e75..621c517b325c 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -86,10 +86,10 @@ struct nfs_direct_req {
         struct nfs_direct_mirror mirrors[NFS_PAGEIO_DESCRIPTOR_MIRROR_MAX];
         int                     mirror_count;
 
+        loff_t                  io_start;       /* Start offset for I/O */
         ssize_t                 count,          /* bytes actually processed */
                                 max_count,      /* max expected count */
                                 bytes_left,     /* bytes left to be sent */
-                                io_start,       /* start of IO */
                                 error;          /* any reported error */
         struct completion       completion;     /* wait for i/o completion */
 
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 49f848fd1f04..7327930ad970 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -873,7 +873,7 @@ static void nfs3_nlm_release_call(void *data)
         }
 }
 
-const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = {
+static const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = {
         .nlmclnt_alloc_call = nfs3_nlm_alloc_call,
         .nlmclnt_unlock_prepare = nfs3_nlm_unlock_prepare,
         .nlmclnt_release_call = nfs3_nlm_release_call,
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 04612c24d394..979631411a0e 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -868,8 +868,10 @@ static int nfs4_set_client(struct nfs_server *server,
         if (IS_ERR(clp))
                 return PTR_ERR(clp);
 
-        if (server->nfs_client == clp)
+        if (server->nfs_client == clp) {
+                nfs_put_client(clp);
                 return -ELOOP;
+        }
 
         /*
          * Query for the lease time on clientid setup or renewal
@@ -1244,11 +1246,11 @@ int nfs4_update_server(struct nfs_server *server, const char *hostname,
                                 clp->cl_proto, clnt->cl_timeout,
                                 clp->cl_minorversion, net);
         clear_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);
-        nfs_put_client(clp);
         if (error != 0) {
                 nfs_server_insert_lists(server);
                 return error;
         }
+        nfs_put_client(clp);
 
         if (server->nfs_client->cl_hostname == NULL)
                 server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL);
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index c13e826614b5..ee723aa153a3 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -292,8 +292,11 @@ pnfs_detach_layout_hdr(struct pnfs_layout_hdr *lo)
 void
 pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo)
 {
-        struct inode *inode = lo->plh_inode;
+        struct inode *inode;
 
+        if (!lo)
+                return;
+        inode = lo->plh_inode;
         pnfs_layoutreturn_before_put_layout_hdr(lo);
 
         if (refcount_dec_and_lock(&lo->plh_refcount, &inode->i_lock)) {
@@ -1241,10 +1244,12 @@ retry:
         spin_lock(&ino->i_lock);
         lo = nfsi->layout;
         if (!lo || !pnfs_layout_is_valid(lo) ||
-            test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags))
+            test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) {
+                lo = NULL;
                 goto out_noroc;
+        }
+        pnfs_get_layout_hdr(lo);
         if (test_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) {
-                pnfs_get_layout_hdr(lo);
                 spin_unlock(&ino->i_lock);
                 wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN,
                                 TASK_UNINTERRUPTIBLE);
@@ -1312,10 +1317,12 @@ out_noroc:
                 struct pnfs_layoutdriver_type *ld = NFS_SERVER(ino)->pnfs_curr_ld;
                 if (ld->prepare_layoutreturn)
                         ld->prepare_layoutreturn(args);
+                pnfs_put_layout_hdr(lo);
                 return true;
         }
         if (layoutreturn)
                 pnfs_send_layoutreturn(lo, &stateid, iomode, true);
+        pnfs_put_layout_hdr(lo);
         return false;
 }
 
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 29bacdc56f6a..5e470e233c83 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2631,6 +2631,8 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server,
                 /* initial superblock/root creation */
                 mount_info->fill_super(s, mount_info);
                 nfs_get_cache_cookie(s, mount_info->parsed, mount_info->cloned);
+                if (!(server->flags & NFS_MOUNT_UNSHARED))
+                        s->s_iflags |= SB_I_MULTIROOT;
         }
 
         mntroot = nfs_get_root(s, mount_info->mntfh, dev_name);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 7428a669d7a7..e7d8ceae8f26 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1876,40 +1876,43 @@ int nfs_generic_commit_list(struct inode *inode, struct list_head *head,
         return status;
 }
 
-int nfs_commit_inode(struct inode *inode, int how)
+static int __nfs_commit_inode(struct inode *inode, int how,
+                struct writeback_control *wbc)
 {
         LIST_HEAD(head);
         struct nfs_commit_info cinfo;
         int may_wait = how & FLUSH_SYNC;
-        int error = 0;
-        int res;
+        int ret, nscan;
 
         nfs_init_cinfo_from_inode(&cinfo, inode);
         nfs_commit_begin(cinfo.mds);
-        res = nfs_scan_commit(inode, &head, &cinfo);
-        if (res)
-                error = nfs_generic_commit_list(inode, &head, how, &cinfo);
+        for (;;) {
+                ret = nscan = nfs_scan_commit(inode, &head, &cinfo);
+                if (ret <= 0)
+                        break;
+                ret = nfs_generic_commit_list(inode, &head, how, &cinfo);
+                if (ret < 0)
+                        break;
+                ret = 0;
+                if (wbc && wbc->sync_mode == WB_SYNC_NONE) {
+                        if (nscan < wbc->nr_to_write)
+                                wbc->nr_to_write -= nscan;
+                        else
+                                wbc->nr_to_write = 0;
+                }
+                if (nscan < INT_MAX)
+                        break;
+                cond_resched();
+        }
         nfs_commit_end(cinfo.mds);
-        if (res == 0)
-                return res;
-        if (error < 0)
-                goto out_error;
-        if (!may_wait)
-                goto out_mark_dirty;
-        error = wait_on_commit(cinfo.mds);
-        if (error < 0)
-                return error;
-        return res;
-out_error:
-        res = error;
-        /* Note: If we exit without ensuring that the commit is complete,
-         * we must mark the inode as dirty. Otherwise, future calls to
-         * sync_inode() with the WB_SYNC_ALL flag set will fail to ensure
-         * that the data is on the disk.
-         */
-out_mark_dirty:
-        __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
-        return res;
+        if (ret || !may_wait)
+                return ret;
+        return wait_on_commit(cinfo.mds);
+}
+
+int nfs_commit_inode(struct inode *inode, int how)
+{
+        return __nfs_commit_inode(inode, how, NULL);
 }
 EXPORT_SYMBOL_GPL(nfs_commit_inode);
 
@@ -1919,11 +1922,11 @@ int nfs_write_inode(struct inode *inode, struct writeback_control *wbc)
         int flags = FLUSH_SYNC;
         int ret = 0;
 
-        /* no commits means nothing needs to be done */
-        if (!atomic_long_read(&nfsi->commit_info.ncommit))
-                return ret;
-
         if (wbc->sync_mode == WB_SYNC_NONE) {
+                /* no commits means nothing needs to be done */
+                if (!atomic_long_read(&nfsi->commit_info.ncommit))
+                        goto check_requests_outstanding;
+
                 /* Don't commit yet if this is a non-blocking flush and there
                  * are a lot of outstanding writes for this mapping.
                  */
@@ -1934,16 +1937,16 @@ int nfs_write_inode(struct inode *inode, struct writeback_control *wbc)
                 flags = 0;
         }
 
-        ret = nfs_commit_inode(inode, flags);
-        if (ret >= 0) {
-                if (wbc->sync_mode == WB_SYNC_NONE) {
-                        if (ret < wbc->nr_to_write)
-                                wbc->nr_to_write -= ret;
-                        else
-                                wbc->nr_to_write = 0;
-                }
-                return 0;
-        }
+        ret = __nfs_commit_inode(inode, flags, wbc);
+        if (!ret) {
+                if (flags & FLUSH_SYNC)
+                        return 0;
+        } else if (atomic_long_read(&nfsi->commit_info.ncommit))
+                goto out_mark_dirty;
+
+check_requests_outstanding:
+        if (!atomic_read(&nfsi->commit_info.rpcs_out))
+                return ret;
 out_mark_dirty:
         __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
         return ret;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 150521c9671b..61b770e39809 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -268,6 +268,35 @@ free_blocked_lock(struct nfsd4_blocked_lock *nbl)
         kfree(nbl);
 }
 
+static void
+remove_blocked_locks(struct nfs4_lockowner *lo)
+{
+        struct nfs4_client *clp = lo->lo_owner.so_client;
+        struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
+        struct nfsd4_blocked_lock *nbl;
+        LIST_HEAD(reaplist);
+
+        /* Dequeue all blocked locks */
+        spin_lock(&nn->blocked_locks_lock);
+        while (!list_empty(&lo->lo_blocked)) {
+                nbl = list_first_entry(&lo->lo_blocked,
+                                        struct nfsd4_blocked_lock,
+                                        nbl_list);
+                list_del_init(&nbl->nbl_list);
+                list_move(&nbl->nbl_lru, &reaplist);
+        }
+        spin_unlock(&nn->blocked_locks_lock);
+
+        /* Now free them */
+        while (!list_empty(&reaplist)) {
+                nbl = list_first_entry(&reaplist, struct nfsd4_blocked_lock,
+                                        nbl_lru);
+                list_del_init(&nbl->nbl_lru);
+                posix_unblock_lock(&nbl->nbl_lock);
+                free_blocked_lock(nbl);
+        }
+}
+
 static int
 nfsd4_cb_notify_lock_done(struct nfsd4_callback *cb, struct rpc_task *task)
 {
@@ -1866,6 +1895,7 @@ static __be32 mark_client_expired_locked(struct nfs4_client *clp)
 static void
 __destroy_client(struct nfs4_client *clp)
 {
+        int i;
         struct nfs4_openowner *oo;
         struct nfs4_delegation *dp;
         struct list_head reaplist;
@@ -1895,6 +1925,16 @@ __destroy_client(struct nfs4_client *clp)
                 nfs4_get_stateowner(&oo->oo_owner);
                 release_openowner(oo);
         }
+        for (i = 0; i < OWNER_HASH_SIZE; i++) {
+                struct nfs4_stateowner *so, *tmp;
+
+                list_for_each_entry_safe(so, tmp, &clp->cl_ownerstr_hashtbl[i],
+                                         so_strhash) {
+                        /* Should be no openowners at this point */
+                        WARN_ON_ONCE(so->so_is_open_owner);
+                        remove_blocked_locks(lockowner(so));
+                }
+        }
         nfsd4_return_all_client_layouts(clp);
         nfsd4_shutdown_callback(clp);
         if (clp->cl_cb_conn.cb_xprt)
@@ -6355,6 +6395,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
         }
         spin_unlock(&clp->cl_lock);
         free_ol_stateid_reaplist(&reaplist);
+        remove_blocked_locks(lo);
         nfs4_put_stateowner(&lo->lo_owner);
 
         return status;
@@ -7140,6 +7181,8 @@ nfs4_state_destroy_net(struct net *net)
                 }
         }
 
+        WARN_ON(!list_empty(&nn->blocked_locks_lru));
+
         for (i = 0; i < CLIENT_HASH_SIZE; i++) {
                 while (!list_empty(&nn->unconf_id_hashtbl[i])) {
                         clp = list_entry(nn->unconf_id_hashtbl[i].next, struct nfs4_client, cl_idhash);
@@ -7206,7 +7249,6 @@ nfs4_state_shutdown_net(struct net *net)
         struct nfs4_delegation *dp = NULL;
         struct list_head *pos, *next, reaplist;
         struct nfsd_net *nn = net_generic(net, nfsd_net_id);
-        struct nfsd4_blocked_lock *nbl;
 
         cancel_delayed_work_sync(&nn->laundromat_work);
         locks_end_grace(&nn->nfsd4_manager);
@@ -7227,24 +7269,6 @@ nfs4_state_shutdown_net(struct net *net)
                 nfs4_put_stid(&dp->dl_stid);
         }
 
-        BUG_ON(!list_empty(&reaplist));
-        spin_lock(&nn->blocked_locks_lock);
-        while (!list_empty(&nn->blocked_locks_lru)) {
-                nbl = list_first_entry(&nn->blocked_locks_lru,
-                                        struct nfsd4_blocked_lock, nbl_lru);
-                list_move(&nbl->nbl_lru, &reaplist);
-                list_del_init(&nbl->nbl_list);
-        }
-        spin_unlock(&nn->blocked_locks_lock);
-
-        while (!list_empty(&reaplist)) {
-                nbl = list_first_entry(&reaplist,
-                                        struct nfsd4_blocked_lock, nbl_lru);
-                list_del_init(&nbl->nbl_lru);
-                posix_unblock_lock(&nbl->nbl_lock);
-                free_blocked_lock(nbl);
-        }
-
         nfsd4_client_tracking_exit(net);
         nfs4_state_destroy_net(net);
 }
diff --git a/fs/overlayfs/Kconfig b/fs/overlayfs/Kconfig
index 406e72de88f6..ce6ff5a0a6e4 100644
--- a/fs/overlayfs/Kconfig
+++ b/fs/overlayfs/Kconfig
@@ -24,6 +24,8 @@ config OVERLAY_FS_REDIRECT_DIR
           an overlay which has redirects on a kernel that doesn't support this
           feature will have unexpected results.
 
+          If unsure, say N.
+
 config OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW
         bool "Overlayfs: follow redirects even if redirects are turned off"
         default y
@@ -32,8 +34,13 @@ config OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW
           Disable this to get a possibly more secure configuration, but that
           might not be backward compatible with previous kernels.
 
+          If backward compatibility is not an issue, then it is safe and
+          recommended to say N here.
+
           For more information, see Documentation/filesystems/overlayfs.txt
 
+          If unsure, say Y.
+
 config OVERLAY_FS_INDEX
         bool "Overlayfs: turn on inodes index feature by default"
         depends on OVERLAY_FS
@@ -51,6 +58,8 @@ config OVERLAY_FS_INDEX
           That is, mounting an overlay which has an inodes index on a kernel
           that doesn't support this feature will have unexpected results.
 
+          If unsure, say N.
+
 config OVERLAY_FS_NFS_EXPORT
         bool "Overlayfs: turn on NFS export feature by default"
         depends on OVERLAY_FS
@@ -72,3 +81,8 @@ config OVERLAY_FS_NFS_EXPORT
           Note, that the NFS export feature is not backward compatible.
           That is, mounting an overlay which has a full index on a kernel
           that doesn't support this feature will have unexpected results.
+
+          Most users should say N here and enable this feature on a case-by-
+          case basis with the "nfs_export=on" mount option.
+
+          Say N unless you fully understand the consequences.
diff --git a/fs/overlayfs/export.c b/fs/overlayfs/export.c
index bb94ce9da5c8..87bd4148f4fb 100644
--- a/fs/overlayfs/export.c
+++ b/fs/overlayfs/export.c
@@ -19,6 +19,142 @@
 #include <linux/ratelimit.h>
 #include "overlayfs.h"
 
+static int ovl_encode_maybe_copy_up(struct dentry *dentry)
+{
+        int err;
+
+        if (ovl_dentry_upper(dentry))
+                return 0;
+
+        err = ovl_want_write(dentry);
+        if (!err) {
+                err = ovl_copy_up(dentry);
+                ovl_drop_write(dentry);
+        }
+
+        if (err) {
+                pr_warn_ratelimited("overlayfs: failed to copy up on encode (%pd2, err=%i)\n",
+                                    dentry, err);
+        }
+
+        return err;
+}
+
+/*
+ * Before encoding a non-upper directory file handle from real layer N, we need
+ * to check if it will be possible to reconnect an overlay dentry from the real
+ * lower decoded dentry. This is done by following the overlay ancestry up to a
+ * "layer N connected" ancestor and verifying that all parents along the way are
+ * "layer N connectable". If an ancestor that is NOT "layer N connectable" is
+ * found, we need to copy up an ancestor, which is "layer N connectable", thus
+ * making that ancestor "layer N connected". For example:
+ *
+ * layer 1: /a
+ * layer 2: /a/b/c
+ *
+ * The overlay dentry /a is NOT "layer 2 connectable", because if dir /a is
+ * copied up and renamed, upper dir /a will be indexed by lower dir /a from
+ * layer 1. The dir /a from layer 2 will never be indexed, so the algorithm (*)
+ * in ovl_lookup_real_ancestor() will not be able to lookup a connected overlay
+ * dentry from the connected lower dentry /a/b/c.
+ *
+ * To avoid this problem on decode time, we need to copy up an ancestor of
+ * /a/b/c, which is "layer 2 connectable", on encode time. That ancestor is
+ * /a/b. After copy up (and index) of /a/b, it will become "layer 2 connected"
+ * and when the time comes to decode the file handle from lower dentry /a/b/c,
+ * ovl_lookup_real_ancestor() will find the indexed ancestor /a/b and decoding
+ * a connected overlay dentry will be accomplished.
+ *
+ * (*) the algorithm in ovl_lookup_real_ancestor() can be improved to lookup an
+ * entry /a in the lower layers above layer N and find the indexed dir /a from
+ * layer 1. If that improvement is made, then the check for "layer N connected"
+ * will need to verify there are no redirects in lower layers above N. In the
+ * example above, /a will be "layer 2 connectable". However, if layer 2 dir /a
+ * is a target of a layer 1 redirect, then /a will NOT be "layer 2 connectable":
+ *
+ * layer 1: /A (redirect = /a)
+ * layer 2: /a/b/c
+ */
+
+/* Return the lowest layer for encoding a connectable file handle */
+static int ovl_connectable_layer(struct dentry *dentry)
+{
+        struct ovl_entry *oe = OVL_E(dentry);
+
+        /* We can get overlay root from root of any layer */
+        if (dentry == dentry->d_sb->s_root)
+                return oe->numlower;
+
+        /*
+         * If it's an unindexed merge dir, then it's not connectable with any
+         * lower layer
+         */
+        if (ovl_dentry_upper(dentry) &&
+            !ovl_test_flag(OVL_INDEX, d_inode(dentry)))
+                return 0;
+
+        /* We can get upper/overlay path from indexed/lower dentry */
+        return oe->lowerstack[0].layer->idx;
+}
+
+/*
+ * @dentry is "connected" if all ancestors up to root or a "connected" ancestor
+ * have the same uppermost lower layer as the origin's layer. We may need to
+ * copy up a "connectable" ancestor to make it "connected". A "connected" dentry
+ * cannot become non "connected", so cache positive result in dentry flags.
+ *
+ * Return the connected origin layer or < 0 on error.
+ */
+static int ovl_connect_layer(struct dentry *dentry)
+{
+        struct dentry *next, *parent = NULL;
+        int origin_layer;
+        int err = 0;
+
+        if (WARN_ON(dentry == dentry->d_sb->s_root) ||
+            WARN_ON(!ovl_dentry_lower(dentry)))
+                return -EIO;
+
+        origin_layer = OVL_E(dentry)->lowerstack[0].layer->idx;
+        if (ovl_dentry_test_flag(OVL_E_CONNECTED, dentry))
+                return origin_layer;
+
+        /* Find the topmost origin layer connectable ancestor of @dentry */
+        next = dget(dentry);
+        for (;;) {
+                parent = dget_parent(next);
+                if (WARN_ON(parent == next)) {
+                        err = -EIO;
+                        break;
+                }
+
+                /*
+                 * If @parent is not origin layer connectable, then copy up
+                 * @next which is origin layer connectable and we are done.
+                 */
+                if (ovl_connectable_layer(parent) < origin_layer) {
+                        err = ovl_encode_maybe_copy_up(next);
+                        break;
+                }
+
+                /* If @parent is connected or indexed we are done */
+                if (ovl_dentry_test_flag(OVL_E_CONNECTED, parent) ||
+                    ovl_test_flag(OVL_INDEX, d_inode(parent)))
+                        break;
+
+                dput(next);
+                next = parent;
+        }
+
+        dput(parent);
+        dput(next);
+
+        if (!err)
+                ovl_dentry_set_flag(OVL_E_CONNECTED, dentry);
+
+        return err ?: origin_layer;
+}
+
 /*
  * We only need to encode origin if there is a chance that the same object was
  * encoded pre copy up and then we need to stay consistent with the same
@@ -41,73 +177,59 @@
  * L = lower file handle
  *
  * (*) Connecting an overlay dir from real lower dentry is not always
- * possible when there are redirects in lower layers. To mitigate this case,
- * we copy up the lower dir first and then encode an upper dir file handle.
+ * possible when there are redirects in lower layers and non-indexed merge dirs.
+ * To mitigate those case, we may copy up the lower dir ancestor before encode
+ * a lower dir file handle.
+ *
+ * Return 0 for upper file handle, > 0 for lower file handle or < 0 on error.
  */
-static bool ovl_should_encode_origin(struct dentry *dentry)
+static int ovl_check_encode_origin(struct dentry *dentry)
 {
         struct ovl_fs *ofs = dentry->d_sb->s_fs_info;
 
+        /* Upper file handle for pure upper */
         if (!ovl_dentry_lower(dentry))
-                return false;
+                return 0;
 
         /*
-         * Decoding a merge dir, whose origin's parent is under a redirected
-         * lower dir is not always possible. As a simple aproximation, we do
-         * not encode lower dir file handles when overlay has multiple lower
-         * layers and origin is below the topmost lower layer.
+         * Upper file handle for non-indexed upper.
          *
-         * TODO: copy up only the parent that is under redirected lower.
+         * Root is never indexed, so if there's an upper layer, encode upper for
+         * root.
          */
-        if (d_is_dir(dentry) && ofs->upper_mnt &&
-            OVL_E(dentry)->lowerstack[0].layer->idx > 1)
-                return false;
-
-        /* Decoding a non-indexed upper from origin is not implemented */
         if (ovl_dentry_upper(dentry) &&
             !ovl_test_flag(OVL_INDEX, d_inode(dentry)))
-                return false;
-
-        return true;
-}
-
-static int ovl_encode_maybe_copy_up(struct dentry *dentry)
-{
-        int err;
-
-        if (ovl_dentry_upper(dentry))
                 return 0;
 
-        err = ovl_want_write(dentry);
-        if (err)
-                return err;
-
-        err = ovl_copy_up(dentry);
+        /*
+         * Decoding a merge dir, whose origin's ancestor is under a redirected
+         * lower dir or under a non-indexed upper is not always possible.
+         * ovl_connect_layer() will try to make origin's layer "connected" by
+         * copying up a "connectable" ancestor.
+         */
+        if (d_is_dir(dentry) && ofs->upper_mnt)
+                return ovl_connect_layer(dentry);
 
-        ovl_drop_write(dentry);
-        return err;
+        /* Lower file handle for indexed and non-upper dir/non-dir */
+        return 1;
 }
 
 static int ovl_d_to_fh(struct dentry *dentry, char *buf, int buflen)
 {
-        struct dentry *origin = ovl_dentry_lower(dentry);
         struct ovl_fh *fh = NULL;
-        int err;
+        int err, enc_lower;
 
         /*
-         * If we should not encode a lower dir file handle, copy up and encode
-         * an upper dir file handle.
+         * Check if we should encode a lower or upper file handle and maybe
+         * copy up an ancestor to make lower file handle connectable.
          */
-        if (!ovl_should_encode_origin(dentry)) {
-                err = ovl_encode_maybe_copy_up(dentry);
-                if (err)
-                        goto fail;
-
-                origin = NULL;
-        }
+        err = enc_lower = ovl_check_encode_origin(dentry);
+        if (enc_lower < 0)
+                goto fail;
 
-        /* Encode an upper or origin file handle */
-        fh = ovl_encode_fh(origin ?: ovl_dentry_upper(dentry), !origin);
+        /* Encode an upper or lower file handle */
+        fh = ovl_encode_fh(enc_lower ? ovl_dentry_lower(dentry) :
+                                       ovl_dentry_upper(dentry), !enc_lower);
         err = PTR_ERR(fh);
         if (IS_ERR(fh))
                 goto fail;
@@ -355,8 +477,8 @@ static struct dentry *ovl_lookup_real_inode(struct super_block *sb,
                 dput(upper);
         }
 
-        if (!this)
-                return NULL;
+        if (IS_ERR_OR_NULL(this))
+                return this;
 
         if (WARN_ON(ovl_dentry_real_at(this, layer->idx) != real)) {
                 dput(this);
@@ -498,7 +620,7 @@ static struct dentry *ovl_lookup_real(struct super_block *sb,
                         if (err == -ECHILD) {
                                 this = ovl_lookup_real_ancestor(sb, real,
                                                                 layer);
-                                err = IS_ERR(this) ? PTR_ERR(this) : 0;
+                                err = PTR_ERR_OR_ZERO(this);
                         }
                         if (!err) {
                                 dput(connected);
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index fcd97b783fa1..3b1bd469accd 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -669,38 +669,59 @@ struct inode *ovl_lookup_inode(struct super_block *sb, struct dentry *real,
         return inode;
 }
 
+/*
+ * Does overlay inode need to be hashed by lower inode?
+ */
+static bool ovl_hash_bylower(struct super_block *sb, struct dentry *upper,
+                             struct dentry *lower, struct dentry *index)
+{
+        struct ovl_fs *ofs = sb->s_fs_info;
+
+        /* No, if pure upper */
+        if (!lower)
+                return false;
+
+        /* Yes, if already indexed */
+        if (index)
+                return true;
+
+        /* Yes, if won't be copied up */
+        if (!ofs->upper_mnt)
+                return true;
+
+        /* No, if lower hardlink is or will be broken on copy up */
+        if ((upper || !ovl_indexdir(sb)) &&
+            !d_is_dir(lower) && d_inode(lower)->i_nlink > 1)
+                return false;
+
+        /* No, if non-indexed upper with NFS export */
+        if (sb->s_export_op && upper)
+                return false;
+
+        /* Otherwise, hash by lower inode for fsnotify */
+        return true;
+}
+
 struct inode *ovl_get_inode(struct super_block *sb, struct dentry *upperdentry,
                             struct dentry *lowerdentry, struct dentry *index,
                             unsigned int numlower)
 {
-        struct ovl_fs *ofs = sb->s_fs_info;
         struct inode *realinode = upperdentry ? d_inode(upperdentry) : NULL;
         struct inode *inode;
-        /* Already indexed or could be indexed on copy up? */
-        bool indexed = (index || (ovl_indexdir(sb) && !upperdentry));
-        struct dentry *origin = indexed ? lowerdentry : NULL;
+        bool bylower = ovl_hash_bylower(sb, upperdentry, lowerdentry, index);
         bool is_dir;
 
-        if (WARN_ON(upperdentry && indexed && !lowerdentry))
-                return ERR_PTR(-EIO);
-
         if (!realinode)
                 realinode = d_inode(lowerdentry);
 
         /*
-         * Copy up origin (lower) may exist for non-indexed non-dir upper, but
-         * we must not use lower as hash key in that case.
-         * Hash non-dir that is or could be indexed by origin inode.
-         * Hash dir that is or could be merged by origin inode.
-         * Hash pure upper and non-indexed non-dir by upper inode.
-         * Hash non-indexed dir by upper inode for NFS export.
+         * Copy up origin (lower) may exist for non-indexed upper, but we must
+         * not use lower as hash key if this is a broken hardlink.
          */
         is_dir = S_ISDIR(realinode->i_mode);
-        if (is_dir && (indexed || !sb->s_export_op || !ofs->upper_mnt))
-                origin = lowerdentry;
-
-        if (upperdentry || origin) {
-                struct inode *key = d_inode(origin ?: upperdentry);
+        if (upperdentry || bylower) {
+                struct inode *key = d_inode(bylower ? lowerdentry :
+                                                      upperdentry);
                 unsigned int nlink = is_dir ? 1 : realinode->i_nlink;
 
                 inode = iget5_locked(sb, (unsigned long) key,
@@ -728,6 +749,7 @@ struct inode *ovl_get_inode(struct super_block *sb, struct dentry *upperdentry,
                         nlink = ovl_get_nlink(lowerdentry, upperdentry, nlink);
                 set_nlink(inode, nlink);
         } else {
+                /* Lower hardlink that will be broken on copy up */
                 inode = new_inode(sb);
                 if (!inode)
                         goto out_nomem;
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index de3e6da1d5a5..70fcfcc684cc 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -913,9 +913,6 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
                 stack[ctr].layer = lower.layer;
                 ctr++;
 
-                if (d.stop)
-                        break;
-
                 /*
                  * Following redirects can have security consequences: it's like
                  * a symlink into the lower layer without the permission checks.
@@ -933,6 +930,9 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
                         goto out_put;
                 }
 
+                if (d.stop)
+                        break;
+
                 if (d.redirect && d.redirect[0] == '/' && poe != roe) {
                         poe = roe;
                         /* Find the current layer on the root dentry */
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 0df25a9c94bd..225ff1171147 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -40,6 +40,7 @@ enum ovl_inode_flag {
 enum ovl_entry_flag {
         OVL_E_UPPER_ALIAS,
         OVL_E_OPAQUE,
+        OVL_E_CONNECTED,
 };
 
 /*
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 9ee37c76091d..7c24619ae7fc 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -1359,6 +1359,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 
         /* Root is always merge -> can have whiteouts */
         ovl_set_flag(OVL_WHITEOUTS, d_inode(root_dentry));
+        ovl_dentry_set_flag(OVL_E_CONNECTED, root_dentry);
         ovl_inode_init(d_inode(root_dentry), upperpath.dentry,
                        ovl_dentry_lower(root_dentry));
 
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index e8a93bc8285d..d1e82761de81 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -510,6 +510,10 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
                         /* we have to zero-fill user buffer even if no read */
                         if (copy_to_user(buffer, buf, tsz))
                                 return -EFAULT;
+                } else if (m->type == KCORE_USER) {
+                        /* User page is handled prior to normal kernel page: */
+                        if (copy_to_user(buffer, (char *)start, tsz))
+                                return -EFAULT;
                 } else {
                         if (kern_addr_valid(start)) {
                                 /*
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 9990957264e3..76bf9cc62074 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -118,13 +118,22 @@ static int signalfd_copyinfo(struct signalfd_siginfo __user *uinfo,
                 err |= __put_user(kinfo->si_trapno, &uinfo->ssi_trapno);
 #endif
 #ifdef BUS_MCEERR_AO
-                /* 
+                /*
+                 * Other callers might not initialize the si_lsb field,
+                 * so check explicitly for the right codes here.
+                 */
+                if (kinfo->si_signo == SIGBUS &&
+                     kinfo->si_code == BUS_MCEERR_AO)
+                        err |= __put_user((short) kinfo->si_addr_lsb,
+                                          &uinfo->ssi_addr_lsb);
+#endif
+#ifdef BUS_MCEERR_AR
+                /*
                  * Other callers might not initialize the si_lsb field,
                  * so check explicitly for the right codes here.
                  */
                 if (kinfo->si_signo == SIGBUS &&
-                    (kinfo->si_code == BUS_MCEERR_AR ||
-                     kinfo->si_code == BUS_MCEERR_AO))
+                    kinfo->si_code == BUS_MCEERR_AR)
                         err |= __put_user((short) kinfo->si_addr_lsb,
                                           &uinfo->ssi_addr_lsb);
 #endif
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 8664db25a9a6..215c225b2ca1 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -106,6 +106,7 @@ int sysfs_create_link_nowarn(struct kobject *kobj, struct kobject *target,
 {
         return sysfs_do_create_link(kobj, target, name, 0);
 }
+EXPORT_SYMBOL_GPL(sysfs_create_link_nowarn);
 
 /**
  *      sysfs_delete_link - remove symlink in object's directory.
diff --git a/fs/xfs/scrub/agheader.c b/fs/xfs/scrub/agheader.c
index fd975524f460..05c66e05ae20 100644
--- a/fs/xfs/scrub/agheader.c
+++ b/fs/xfs/scrub/agheader.c
@@ -767,7 +767,7 @@ int
 xfs_scrub_agfl(
         struct xfs_scrub_context        *sc)
 {
-        struct xfs_scrub_agfl_info      sai = { 0 };
+        struct xfs_scrub_agfl_info      sai;
         struct xfs_agf                  *agf;
         xfs_agnumber_t                  agno;
         unsigned int                    agflcount;
@@ -795,6 +795,7 @@ xfs_scrub_agfl(
                 xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
                 goto out;
         }
+        memset(&sai, 0, sizeof(sai));
         sai.sz_entries = agflcount;
         sai.entries = kmem_zalloc(sizeof(xfs_agblock_t) * agflcount, KM_NOFS);
         if (!sai.entries) {
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 66e1edbfb2b2..046469fcc1b8 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -955,15 +955,29 @@ static inline bool imap_needs_alloc(struct inode *inode,
                 (IS_DAX(inode) && imap->br_state == XFS_EXT_UNWRITTEN);
 }
 
+static inline bool needs_cow_for_zeroing(struct xfs_bmbt_irec *imap, int nimaps)
+{
+        return nimaps &&
+                imap->br_startblock != HOLESTARTBLOCK &&
+                imap->br_state != XFS_EXT_UNWRITTEN;
+}
+
 static inline bool need_excl_ilock(struct xfs_inode *ip, unsigned flags)
 {
         /*
-         * COW writes will allocate delalloc space, so we need to make sure
-         * to take the lock exclusively here.
+         * COW writes may allocate delalloc space or convert unwritten COW
+         * extents, so we need to make sure to take the lock exclusively here.
          */
         if (xfs_is_reflink_inode(ip) && (flags & (IOMAP_WRITE | IOMAP_ZERO)))
                 return true;
-        if ((flags & IOMAP_DIRECT) && (flags & IOMAP_WRITE))
+
+        /*
+         * Extents not yet cached requires exclusive access, don't block.
+         * This is an opencoded xfs_ilock_data_map_shared() to cater for the
+         * non-blocking behaviour.
+         */
+        if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE &&
+            !(ip->i_df.if_flags & XFS_IFEXTENTS))
                 return true;
         return false;
 }
@@ -993,16 +1007,18 @@ xfs_file_iomap_begin(
                 return xfs_file_iomap_begin_delay(inode, offset, length, iomap);
         }
 
-        if (need_excl_ilock(ip, flags)) {
+        if (need_excl_ilock(ip, flags))
                 lockmode = XFS_ILOCK_EXCL;
-                xfs_ilock(ip, XFS_ILOCK_EXCL);
-        } else {
-                lockmode = xfs_ilock_data_map_shared(ip);
-        }
+        else
+                lockmode = XFS_ILOCK_SHARED;
 
-        if ((flags & IOMAP_NOWAIT) && !(ip->i_df.if_flags & XFS_IFEXTENTS)) {
-                error = -EAGAIN;
-                goto out_unlock;
+        if (flags & IOMAP_NOWAIT) {
+                if (!(ip->i_df.if_flags & XFS_IFEXTENTS))
+                        return -EAGAIN;
+                if (!xfs_ilock_nowait(ip, lockmode))
+                        return -EAGAIN;
+        } else {
+                xfs_ilock(ip, lockmode);
         }
 
         ASSERT(offset <= mp->m_super->s_maxbytes);
@@ -1024,7 +1040,9 @@ xfs_file_iomap_begin(
                         goto out_unlock;
         }
 
-        if ((flags & (IOMAP_WRITE | IOMAP_ZERO)) && xfs_is_reflink_inode(ip)) {
+        if (xfs_is_reflink_inode(ip) &&
+            ((flags & IOMAP_WRITE) ||
+             ((flags & IOMAP_ZERO) && needs_cow_for_zeroing(&imap, nimaps)))) {
                 if (flags & IOMAP_DIRECT) {
                         /*
                          * A reflinked inode will result in CoW alloc.
diff --git a/fs/xfs/xfs_refcount_item.c b/fs/xfs/xfs_refcount_item.c
index 3a55d6fc271b..7a39f40645f7 100644
--- a/fs/xfs/xfs_refcount_item.c
+++ b/fs/xfs/xfs_refcount_item.c
@@ -23,6 +23,7 @@
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_bit.h"
+#include "xfs_shared.h"
 #include "xfs_mount.h"
 #include "xfs_defer.h"
 #include "xfs_trans.h"
@@ -456,10 +457,12 @@ xfs_cui_recover(
          * transaction.  Normally, any work that needs to be deferred
          * gets attached to the same defer_ops that scheduled the
          * refcount update.  However, we're in log recovery here, so we
-         * we create our own defer_ops and use that to finish up any
-         * work that doesn't fit.
+         * we use the passed in defer_ops and to finish up any work that
+         * doesn't fit.  We need to reserve enough blocks to handle a
+         * full btree split on either end of the refcount range.
          */
-        error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
+        error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate,
+                        mp->m_refc_maxlevels * 2, 0, XFS_TRANS_RESERVE, &tp);
         if (error)
                 return error;
         cudp = xfs_trans_get_cud(tp, cuip);
diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c
index f3b139c9aa16..49d3124863a8 100644
--- a/fs/xfs/xfs_rmap_item.c
+++ b/fs/xfs/xfs_rmap_item.c
@@ -23,6 +23,7 @@
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_bit.h"
+#include "xfs_shared.h"
 #include "xfs_mount.h"
 #include "xfs_defer.h"
 #include "xfs_trans.h"
@@ -470,7 +471,8 @@ xfs_rui_recover(
                 }
         }
 
-        error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
+        error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate,
+                        mp->m_rmap_maxlevels, 0, XFS_TRANS_RESERVE, &tp);
         if (error)
                 return error;
         rudp = xfs_trans_get_rud(tp, ruip);
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 7aba628dc527..93588ea3d3d2 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -250,6 +250,7 @@ xfs_parseargs(
                                 return -EINVAL;
                         break;
                 case Opt_logdev:
+                        kfree(mp->m_logname);
                         mp->m_logname = match_strdup(args);
                         if (!mp->m_logname)
                                 return -ENOMEM;
@@ -258,6 +259,7 @@ xfs_parseargs(
                         xfs_warn(mp, "%s option not allowed on this system", p);
                         return -EINVAL;
                 case Opt_rtdev:
+                        kfree(mp->m_rtname);
                         mp->m_rtname = match_strdup(args);
                         if (!mp->m_rtname)
                                 return -ENOMEM;
diff --git a/include/asm-generic/bitops/lock.h b/include/asm-generic/bitops/lock.h
index bc397573c43a..67ab280ad134 100644
--- a/include/asm-generic/bitops/lock.h
+++ b/include/asm-generic/bitops/lock.h
@@ -7,7 +7,8 @@
  * @nr: Bit to set
  * @addr: Address to count from
  *
- * This operation is atomic and provides acquire barrier semantics.
+ * This operation is atomic and provides acquire barrier semantics if
+ * the returned value is 0.
  * It can be used to implement bit locks.
  */
 #define test_and_set_bit_lock(nr, addr) test_and_set_bit(nr, addr)
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 963b755d19b0..a7613e1b0c87 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -52,6 +52,7 @@ struct bug_entry {
 #ifndef HAVE_ARCH_BUG
 #define BUG() do { \
         printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
+        barrier_before_unreachable(); \
         panic("BUG!"); \
 } while (0)
 #endif
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 2cfa3075d148..bfbb44a5ad38 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -983,6 +983,8 @@ int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot);
 int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot);
 int pud_clear_huge(pud_t *pud);
 int pmd_clear_huge(pmd_t *pmd);
+int pud_free_pmd_page(pud_t *pud);
+int pmd_free_pte_page(pmd_t *pmd);
 #else   /* !CONFIG_HAVE_ARCH_HUGE_VMAP */
 static inline int p4d_set_huge(p4d_t *p4d, phys_addr_t addr, pgprot_t prot)
 {
@@ -1008,6 +1010,14 @@ static inline int pmd_clear_huge(pmd_t *pmd)
 {
         return 0;
 }
+static inline int pud_free_pmd_page(pud_t *pud)
+{
+        return 0;
+}
+static inline int pmd_free_pte_page(pmd_t *pmd)
+{
+        return 0;
+}
 #endif  /* CONFIG_HAVE_ARCH_HUGE_VMAP */
 
 #ifndef __HAVE_ARCH_FLUSH_PMD_TLB_RANGE
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 76e237bd989b..6914633037a5 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -77,5 +77,6 @@ void drm_kms_helper_hotplug_event(struct drm_device *dev);
 
 void drm_kms_helper_poll_disable(struct drm_device *dev);
 void drm_kms_helper_poll_enable(struct drm_device *dev);
+bool drm_kms_helper_is_poll_worker(void);
 
 #endif
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index d32b688eb346..d23dcdd1bd95 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -56,6 +56,7 @@ struct drm_printer;
 #define DRIVER_ATOMIC                   0x10000
 #define DRIVER_KMS_LEGACY_CONTEXT       0x20000
 #define DRIVER_SYNCOBJ                  0x40000
+#define DRIVER_PREFER_XBGR_30BPP        0x80000
 
 /**
  * struct drm_driver - DRM driver structure
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index cdbd142ca7f2..02924ae2527e 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -360,6 +360,7 @@ void kvm_vgic_put(struct kvm_vcpu *vcpu);
 bool kvm_vcpu_has_pending_irqs(struct kvm_vcpu *vcpu);
 void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu);
 void kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu);
+void kvm_vgic_reset_mapped_irq(struct kvm_vcpu *vcpu, u32 vintid);
 
 void vgic_v3_dispatch_sgi(struct kvm_vcpu *vcpu, u64 reg);
 
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 64e10746f282..968173ec2726 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -587,7 +587,7 @@ extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
                                                const struct device *dev);
 
-void *acpi_get_match_data(const struct device *dev);
+const void *acpi_device_get_match_data(const struct device *dev);
 extern bool acpi_driver_match_device(struct device *dev,
                                      const struct device_driver *drv);
 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
@@ -766,7 +766,7 @@ static inline const struct acpi_device_id *acpi_match_device(
         return NULL;
 }
 
-static inline void *acpi_get_match_data(const struct device *dev)
+static inline const void *acpi_device_get_match_data(const struct device *dev)
 {
         return NULL;
 }
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d0eb659fa733..ce547a25e8ae 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -511,6 +511,7 @@ void zero_fill_bio(struct bio *bio);
 extern struct bio_vec *bvec_alloc(gfp_t, int, unsigned long *, mempool_t *);
 extern void bvec_free(mempool_t *, struct bio_vec *, unsigned int);
 extern unsigned int bvec_nr_vecs(unsigned short idx);
+extern const char *bio_devname(struct bio *bio, char *buffer);
 
 #define bio_set_dev(bio, bdev)                  \
 do {                                            \
@@ -529,9 +530,6 @@ do {						\
 #define bio_dev(bio) \
         disk_devt((bio)->bi_disk)
 
-#define bio_devname(bio, buf) \
-        __bdevname(bio_dev(bio), (buf))
-
 #ifdef CONFIG_BLK_CGROUP
 int bio_associate_blkcg(struct bio *bio, struct cgroup_subsys_state *blkcg_css);
 void bio_disassociate_task(struct bio *bio);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 4f3df807cf8f..ed63f3b69c12 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -49,7 +49,7 @@ struct blk_stat_callback;
 #define BLKDEV_MIN_RQ   4
 #define BLKDEV_MAX_RQ   128     /* Default maximum */
 
-/* Must be consisitent with blk_mq_poll_stats_bkt() */
+/* Must be consistent with blk_mq_poll_stats_bkt() */
 #define BLK_MQ_POLL_STATS_BKTS 16
 
 /*
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 9f242b876fde..f8e76d01a5ad 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -755,13 +755,13 @@ struct sock_cgroup_data {
  * updaters and return part of the previous pointer as the prioidx or
  * classid.  Such races are short-lived and the result isn't critical.
  */
-static inline u16 sock_cgroup_prioidx(struct sock_cgroup_data *skcd)
+static inline u16 sock_cgroup_prioidx(const struct sock_cgroup_data *skcd)
 {
         /* fallback to 1 which is always the ID of the root cgroup */
         return (skcd->is_data & 1) ? skcd->prioidx : 1;
 }
 
-static inline u32 sock_cgroup_classid(struct sock_cgroup_data *skcd)
+static inline u32 sock_cgroup_classid(const struct sock_cgroup_data *skcd)
 {
         /* fallback to 0 which is the unconfigured default classid */
         return (skcd->is_data & 1) ? skcd->classid : 0;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 8a9643857c4a..16c3027074a2 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -17,6 +17,7 @@
 #include <linux/if.h>
 #include <linux/fs.h>
 #include <linux/aio_abi.h>      /* for aio_context_t */
+#include <linux/uaccess.h>
 #include <linux/unistd.h>
 
 #include <asm/compat.h>
@@ -229,13 +230,13 @@ typedef struct compat_siginfo {
                                 short int _addr_lsb;    /* Valid LSB of the reported address. */
                                 /* used when si_code=SEGV_BNDERR */
                                 struct {
-                                        short _dummy_bnd;
+                                        compat_uptr_t _dummy_bnd;
                                         compat_uptr_t _lower;
                                         compat_uptr_t _upper;
                                 } _addr_bnd;
                                 /* used when si_code=SEGV_PKUERR */
                                 struct {
-                                        short _dummy_pkey;
+                                        compat_uptr_t _dummy_pkey;
                                         u32 _pkey;
                                 } _addr_pkey;
                         };
@@ -550,8 +551,29 @@ asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
 
 extern int get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat);
-extern int put_compat_sigset(compat_sigset_t __user *compat,
-                             const sigset_t *set, unsigned int size);
+
+/*
+ * Defined inline such that size can be compile time constant, which avoids
+ * CONFIG_HARDENED_USERCOPY complaining about copies from task_struct
+ */
+static inline int
+put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,
+                  unsigned int size)
+{
+        /* size <= sizeof(compat_sigset_t) <= sizeof(sigset_t) */
+#ifdef __BIG_ENDIAN
+        compat_sigset_t v;
+        switch (_NSIG_WORDS) {
+        case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
+        case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
+        case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];
+        case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];
+        }
+        return copy_to_user(compat, &v, size) ? -EFAULT : 0;
+#else
+        return copy_to_user(compat, set, size) ? -EFAULT : 0;
+#endif
+}
 
 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
                 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index d02a4df3f473..d3f264a5b04d 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -27,3 +27,8 @@
 #if __has_feature(address_sanitizer)
 #define __SANITIZE_ADDRESS__
 #endif
+
+/* Clang doesn't have a way to turn it off per-function, yet. */
+#ifdef __noretpoline
+#undef __noretpoline
+#endif
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 631354acfa72..e2c7f4369eff 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -93,6 +93,10 @@
 #define __weak          __attribute__((weak))
 #define __alias(symbol) __attribute__((alias(#symbol)))
 
+#ifdef RETPOLINE
+#define __noretpoline __attribute__((indirect_branch("keep")))
+#endif
+
 /*
  * it doesn't make sense on ARM (currently the only user of __naked)
  * to trace naked functions because then mcount is called without
@@ -167,8 +171,6 @@
 
 #if GCC_VERSION >= 40100
 # define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
-
-#define __nostackprotector      __attribute__((__optimize__("no-stack-protector")))
 #endif
 
 #if GCC_VERSION >= 40300
@@ -196,6 +198,11 @@
 #endif /* __CHECKER__ */
 #endif /* GCC_VERSION >= 40300 */
 
+#if GCC_VERSION >= 40400
+#define __optimize(level)       __attribute__((__optimize__(level)))
+#define __nostackprotector      __optimize("no-stack-protector")
+#endif /* GCC_VERSION >= 40400 */
+
 #if GCC_VERSION >= 40500
 
 #ifndef __CHECKER__
@@ -205,6 +212,15 @@
 #endif
 
 /*
+ * calling noreturn functions, __builtin_unreachable() and __builtin_trap()
+ * confuse the stack allocation in gcc, leading to overly large stack
+ * frames, see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82365
+ *
+ * Adding an empty inline assembly before it works around the problem
+ */
+#define barrier_before_unreachable() asm volatile("")
+
+/*
  * Mark a position in code as unreachable.  This can be used to
  * suppress control flow warnings after asm blocks that transfer
  * control elsewhere.
@@ -214,7 +230,11 @@
  * unreleased.  Really, we need to have autoconf for the kernel.
  */
 #define unreachable() \
-        do { annotate_unreachable(); __builtin_unreachable(); } while (0)
+        do {                                    \
+                annotate_unreachable();         \
+                barrier_before_unreachable();   \
+                __builtin_unreachable();        \
+        } while (0)
 
 /* Mark a function definition as prohibited from being cloned. */
 #define __noclone       __attribute__((__noclone__, __optimize__("no-tracer")))
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index c2cc57a2f508..ab4711c63601 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -86,6 +86,11 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
 # define barrier_data(ptr) barrier()
 #endif
 
+/* workaround for GCC PR82365 if needed */
+#ifndef barrier_before_unreachable
+# define barrier_before_unreachable() do { } while (0)
+#endif
+
 /* Unreachable code */
 #ifdef CONFIG_STACK_VALIDATION
 /*
@@ -277,6 +282,10 @@ unsigned long read_word_at_a_time(const void *addr)
 
 #endif /* __ASSEMBLY__ */
 
+#ifndef __optimize
+# define __optimize(level)
+#endif
+
 /* Compile time object size, -1 for unknown */
 #ifndef __compiletime_object_size
 # define __compiletime_object_size(obj) -1
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 871f9e21810c..0b3fc229086c 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -225,7 +225,7 @@ static inline void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev,
 }
 #endif
 
-#ifdef CONFIG_ARCH_HAS_CPU_RELAX
+#if defined(CONFIG_CPU_IDLE) && defined(CONFIG_ARCH_HAS_CPU_RELAX)
 void cpuidle_poll_state_init(struct cpuidle_driver *drv);
 #else
 static inline void cpuidle_poll_state_init(struct cpuidle_driver *drv) {}
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index d4a2a7dcd72d..bf53d893ad02 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -170,6 +170,8 @@ static inline unsigned int cpumask_local_spread(unsigned int i, int node)
         for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
 #define for_each_cpu_not(cpu, mask)             \
         for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
+#define for_each_cpu_wrap(cpu, mask, start)     \
+        for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)(start))
 #define for_each_cpu_and(cpu, mask, and)        \
         for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)and)
 #else
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 34fe8463d10e..eb9eab4ecd6d 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -578,7 +578,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 
 /*
  * This is a hack for the legacy x86 forbid_dac and iommu_sac_force. Please
- * don't use this is new code.
+ * don't use this in new code.
  */
 #ifndef arch_dma_supported
 #define arch_dma_supported(dev, mask)   (1)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2a815560fda0..c6baf767619e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1317,6 +1317,7 @@ extern int send_sigurg(struct fown_struct *fown);
 #define SB_I_CGROUPWB   0x00000001      /* cgroup-aware writeback enabled */
 #define SB_I_NOEXEC     0x00000002      /* Ignore executables on this fs */
 #define SB_I_NODEV      0x00000004      /* Ignore devices on this fs */
+#define SB_I_MULTIROOT  0x00000008      /* Multiple roots to the dentry tree */
 
 /* sb->s_iflags to limit user namespace mounts */
 #define SB_I_USERNS_VISIBLE             0x00000010 /* fstype already mounted */
@@ -3198,7 +3199,7 @@ static inline bool vma_is_fsdax(struct vm_area_struct *vma)
         if (!vma_is_dax(vma))
                 return false;
         inode = file_inode(vma->vm_file);
-        if (inode->i_mode == S_IFCHR)
+        if (S_ISCHR(inode->i_mode))
                 return false; /* device-dax */
         return true;
 }
diff --git a/include/linux/fsl_ifc.h b/include/linux/fsl_ifc.h
index c332f0a45607..3fdfede2f0f3 100644
--- a/include/linux/fsl_ifc.h
+++ b/include/linux/fsl_ifc.h
@@ -734,11 +734,7 @@ struct fsl_ifc_nand {
         u32 res19[0x10];
         __be32 nand_fsr;
         u32 res20;
-        /* The V1 nand_eccstat is actually 4 words that overlaps the
-         * V2 nand_eccstat.
-         */
-        __be32 v1_nand_eccstat[2];
-        __be32 v2_nand_eccstat[6];
+        __be32 nand_eccstat[8];
         u32 res21[0x1c];
         __be32 nanndcr;
         u32 res22[0x2];
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index 4fa1a489efe4..4fe8f289b3f6 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -73,8 +73,8 @@ struct fwnode_operations {
         struct fwnode_handle *(*get)(struct fwnode_handle *fwnode);
         void (*put)(struct fwnode_handle *fwnode);
         bool (*device_is_available)(const struct fwnode_handle *fwnode);
-        void *(*device_get_match_data)(const struct fwnode_handle *fwnode,
-                                       const struct device *dev);
+        const void *(*device_get_match_data)(const struct fwnode_handle *fwnode,
+                                             const struct device *dev);
         bool (*property_present)(const struct fwnode_handle *fwnode,
                                  const char *propname);
         int (*property_read_int_array)(const struct fwnode_handle *fwnode,
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 5e3531027b51..c826b0b5232a 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -198,6 +198,7 @@ struct gendisk {
         void *private_data;
 
         int flags;
+        struct rw_semaphore lookup_sem;
         struct kobject *slave_dir;
 
         struct timer_rand_state *random;
@@ -600,8 +601,9 @@ extern void delete_partition(struct gendisk *, int);
 extern void printk_all_partitions(void);
 
 extern struct gendisk *__alloc_disk_node(int minors, int node_id);
-extern struct kobject *get_disk(struct gendisk *disk);
+extern struct kobject *get_disk_and_module(struct gendisk *disk);
 extern void put_disk(struct gendisk *disk);
+extern void put_disk_and_module(struct gendisk *disk);
 extern void blk_register_region(dev_t devt, unsigned long range,
                         struct module *module,
                         struct kobject *(*probe)(dev_t, int *, void *),
diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h
index c5b0a75a7812..fd00170b494f 100644
--- a/include/linux/if_tun.h
+++ b/include/linux/if_tun.h
@@ -25,6 +25,7 @@ struct ptr_ring *tun_get_tx_ring(struct file *file);
 bool tun_is_xdp_buff(void *ptr);
 void *tun_xdp_to_ptr(void *ptr);
 void *tun_ptr_to_xdp(void *ptr);
+void tun_ptr_free(void *ptr);
 #else
 #include <linux/err.h>
 #include <linux/errno.h>
@@ -50,5 +51,8 @@ static inline void *tun_ptr_to_xdp(void *ptr)
 {
         return NULL;
 }
+static inline void tun_ptr_free(void *ptr)
+{
+}
 #endif /* CONFIG_TUN */
 #endif /* __IF_TUN_H */
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 5e6a2d4dc366..c4a1cff9c768 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -300,30 +300,34 @@ static inline bool vlan_hw_offload_capable(netdev_features_t features,
 }
 
 /**
- * __vlan_insert_tag - regular VLAN tag inserting
+ * __vlan_insert_inner_tag - inner VLAN tag inserting
  * @skb: skbuff to tag
  * @vlan_proto: VLAN encapsulation protocol
  * @vlan_tci: VLAN TCI to insert
+ * @mac_len: MAC header length including outer vlan headers
  *
- * Inserts the VLAN tag into @skb as part of the payload
+ * Inserts the VLAN tag into @skb as part of the payload at offset mac_len
  * Returns error if skb_cow_head failes.
  *
  * Does not change skb->protocol so this function can be used during receive.
  */
-static inline int __vlan_insert_tag(struct sk_buff *skb,
-                                    __be16 vlan_proto, u16 vlan_tci)
+static inline int __vlan_insert_inner_tag(struct sk_buff *skb,
+                                          __be16 vlan_proto, u16 vlan_tci,
+                                          unsigned int mac_len)
 {
         struct vlan_ethhdr *veth;
 
         if (skb_cow_head(skb, VLAN_HLEN) < 0)
                 return -ENOMEM;
 
-        veth = skb_push(skb, VLAN_HLEN);
+        skb_push(skb, VLAN_HLEN);
 
-        /* Move the mac addresses to the beginning of the new header. */
-        memmove(skb->data, skb->data + VLAN_HLEN, 2 * ETH_ALEN);
+        /* Move the mac header sans proto to the beginning of the new header. */
+        memmove(skb->data, skb->data + VLAN_HLEN, mac_len - ETH_TLEN);
         skb->mac_header -= VLAN_HLEN;
 
+        veth = (struct vlan_ethhdr *)(skb->data + mac_len - ETH_HLEN);
+
         /* first, the ethernet type */
         veth->h_vlan_proto = vlan_proto;
 
@@ -334,12 +338,30 @@ static inline int __vlan_insert_tag(struct sk_buff *skb,
 }
 
 /**
- * vlan_insert_tag - regular VLAN tag inserting
+ * __vlan_insert_tag - regular VLAN tag inserting
  * @skb: skbuff to tag
  * @vlan_proto: VLAN encapsulation protocol
  * @vlan_tci: VLAN TCI to insert
  *
  * Inserts the VLAN tag into @skb as part of the payload
+ * Returns error if skb_cow_head failes.
+ *
+ * Does not change skb->protocol so this function can be used during receive.
+ */
+static inline int __vlan_insert_tag(struct sk_buff *skb,
+                                    __be16 vlan_proto, u16 vlan_tci)
+{
+        return __vlan_insert_inner_tag(skb, vlan_proto, vlan_tci, ETH_HLEN);
+}
+
+/**
+ * vlan_insert_inner_tag - inner VLAN tag inserting
+ * @skb: skbuff to tag
+ * @vlan_proto: VLAN encapsulation protocol
+ * @vlan_tci: VLAN TCI to insert
+ * @mac_len: MAC header length including outer vlan headers
+ *
+ * Inserts the VLAN tag into @skb as part of the payload at offset mac_len
  * Returns a VLAN tagged skb. If a new skb is created, @skb is freed.
  *
  * Following the skb_unshare() example, in case of error, the calling function
@@ -347,12 +369,14 @@ static inline int __vlan_insert_tag(struct sk_buff *skb,
  *
  * Does not change skb->protocol so this function can be used during receive.
  */
-static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
-                                              __be16 vlan_proto, u16 vlan_tci)
+static inline struct sk_buff *vlan_insert_inner_tag(struct sk_buff *skb,
+                                                    __be16 vlan_proto,
+                                                    u16 vlan_tci,
+                                                    unsigned int mac_len)
 {
         int err;
 
-        err = __vlan_insert_tag(skb, vlan_proto, vlan_tci);
+        err = __vlan_insert_inner_tag(skb, vlan_proto, vlan_tci, mac_len);
         if (err) {
                 dev_kfree_skb_any(skb);
                 return NULL;
@@ -361,6 +385,26 @@ static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
 }
 
 /**
+ * vlan_insert_tag - regular VLAN tag inserting
+ * @skb: skbuff to tag
+ * @vlan_proto: VLAN encapsulation protocol
+ * @vlan_tci: VLAN TCI to insert
+ *
+ * Inserts the VLAN tag into @skb as part of the payload
+ * Returns a VLAN tagged skb. If a new skb is created, @skb is freed.
+ *
+ * Following the skb_unshare() example, in case of error, the calling function
+ * doesn't have to worry about freeing the original skb.
+ *
+ * Does not change skb->protocol so this function can be used during receive.
+ */
+static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
+                                              __be16 vlan_proto, u16 vlan_tci)
+{
+        return vlan_insert_inner_tag(skb, vlan_proto, vlan_tci, ETH_HLEN);
+}
+
+/**
  * vlan_insert_tag_set_proto - regular VLAN tag inserting
  * @skb: skbuff to tag
  * @vlan_proto: VLAN encapsulation protocol
diff --git a/include/linux/init.h b/include/linux/init.h
index 506a98151131..bc27cf03c41e 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -6,10 +6,10 @@
 #include <linux/types.h>
 
 /* Built-in __init functions needn't be compiled with retpoline */
-#if defined(RETPOLINE) && !defined(MODULE)
-#define __noretpoline __attribute__((indirect_branch("keep")))
+#if defined(__noretpoline) && !defined(MODULE)
+#define __noinitretpoline __noretpoline
 #else
-#define __noretpoline
+#define __noinitretpoline
 #endif
 
 /* These macros are used to mark some functions or 
@@ -47,7 +47,7 @@
 
 /* These are for everybody (although not all archs will actually
    discard it in modules) */
-#define __init          __section(.init.text) __cold  __latent_entropy __noretpoline
+#define __init          __section(.init.text) __cold  __latent_entropy __noinitretpoline
 #define __initdata      __section(.init.data)
 #define __initconst     __section(.init.rodata)
 #define __exitdata      __section(.exit.data)
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index c00c4c33e432..b26eccc78fb1 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -503,6 +503,7 @@
 
 #define ICH_HCR_EN                      (1 << 0)
 #define ICH_HCR_UIE                     (1 << 1)
+#define ICH_HCR_NPIE                    (1 << 3)
 #define ICH_HCR_TC                      (1 << 10)
 #define ICH_HCR_TALL0                   (1 << 11)
 #define ICH_HCR_TALL1                   (1 << 12)
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index d3453ee072fc..68d8b1f73682 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -84,6 +84,7 @@
 
 #define GICH_HCR_EN                     (1 << 0)
 #define GICH_HCR_UIE                    (1 << 1)
+#define GICH_HCR_NPIE                   (1 << 3)
 
 #define GICH_LR_VIRTUALID               (0x3ff << 0)
 #define GICH_LR_PHYSID_CPUID_SHIFT      (10)
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index b6a29c126cc4..b46b541c67c4 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -151,6 +151,7 @@ extern struct jump_entry __start___jump_table[];
 extern struct jump_entry __stop___jump_table[];
 
 extern void jump_label_init(void);
+extern void jump_label_invalidate_initmem(void);
 extern void jump_label_lock(void);
 extern void jump_label_unlock(void);
 extern void arch_jump_label_transform(struct jump_entry *entry,
@@ -198,6 +199,8 @@ static __always_inline void jump_label_init(void)
         static_key_initialized = true;
 }
 
+static inline void jump_label_invalidate_initmem(void) {}
+
 static __always_inline bool static_key_false(struct static_key *key)
 {
         if (unlikely(static_key_count(key) > 0))
diff --git a/include/linux/kconfig.h b/include/linux/kconfig.h
index fec5076eda91..dcde9471897d 100644
--- a/include/linux/kconfig.h
+++ b/include/linux/kconfig.h
@@ -4,6 +4,12 @@
 
 #include <generated/autoconf.h>
 
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#define __BIG_ENDIAN 4321
+#else
+#define __LITTLE_ENDIAN 1234
+#endif
+
 #define __ARG_PLACEHOLDER_1 0,
 #define __take_second_arg(__ignored, val, ...) val
 
@@ -64,4 +70,7 @@
  */
 #define IS_ENABLED(option) __or(IS_BUILTIN(option), IS_MODULE(option))
 
+/* Make sure we always have all types and struct attributes defined. */
+#include <linux/compiler_types.h>
+
 #endif /* __LINUX_KCONFIG_H */
diff --git a/include/linux/kcore.h b/include/linux/kcore.h
index 7ff25a808fef..80db19d3a505 100644
--- a/include/linux/kcore.h
+++ b/include/linux/kcore.h
@@ -10,6 +10,7 @@ enum kcore_type {
         KCORE_VMALLOC,
         KCORE_RAM,
         KCORE_VMEMMAP,
+        KCORE_USER,
         KCORE_OTHER,
 };
 
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index ce51455e2adf..3fd291503576 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -472,6 +472,7 @@ extern bool parse_option_str(const char *str, const char *option);
 extern char *next_arg(char *args, char **param, char **val);
 
 extern int core_kernel_text(unsigned long addr);
+extern int init_kernel_text(unsigned long addr);
 extern int core_kernel_data(unsigned long addr);
 extern int __kernel_text_address(unsigned long addr);
 extern int kernel_text_address(unsigned long addr);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ac0062b74aed..6930c63126c7 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1105,7 +1105,6 @@ static inline void kvm_irq_routing_update(struct kvm *kvm)
 {
 }
 #endif
-void kvm_arch_irq_routing_update(struct kvm *kvm);
 
 static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
 {
@@ -1114,6 +1113,8 @@ static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
 
 #endif /* CONFIG_HAVE_KVM_EVENTFD */
 
+void kvm_arch_irq_routing_update(struct kvm *kvm);
+
 static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu)
 {
         /*
@@ -1272,4 +1273,7 @@ static inline long kvm_arch_vcpu_async_ioctl(struct file *filp,
 }
 #endif /* CONFIG_HAVE_KVM_VCPU_ASYNC_IOCTL */
 
+void kvm_arch_mmu_notifier_invalidate_range(struct kvm *kvm,
+                unsigned long start, unsigned long end);
+
 #endif
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 8be5077efb5f..f92ea7783652 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -187,7 +187,6 @@ int memblock_search_pfn_nid(unsigned long pfn, unsigned long *start_pfn,
                             unsigned long  *end_pfn);
 void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn,
                           unsigned long *out_end_pfn, int *out_nid);
-unsigned long memblock_next_valid_pfn(unsigned long pfn, unsigned long max_pfn);
 
 /**
  * for_each_mem_pfn_range - early memory pfn range iterator
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 882046863581..c46016bb25eb 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -523,9 +523,11 @@ static inline void __mod_memcg_state(struct mem_cgroup *memcg,
 static inline void mod_memcg_state(struct mem_cgroup *memcg,
                                    int idx, int val)
 {
-        preempt_disable();
+        unsigned long flags;
+
+        local_irq_save(flags);
         __mod_memcg_state(memcg, idx, val);
-        preempt_enable();
+        local_irq_restore(flags);
 }
 
 /**
@@ -606,9 +608,11 @@ static inline void __mod_lruvec_state(struct lruvec *lruvec,
 static inline void mod_lruvec_state(struct lruvec *lruvec,
                                     enum node_stat_item idx, int val)
 {
-        preempt_disable();
+        unsigned long flags;
+
+        local_irq_save(flags);
         __mod_lruvec_state(lruvec, idx, val);
-        preempt_enable();
+        local_irq_restore(flags);
 }
 
 static inline void __mod_lruvec_page_state(struct page *page,
@@ -630,9 +634,11 @@ static inline void __mod_lruvec_page_state(struct page *page,
 static inline void mod_lruvec_page_state(struct page *page,
                                          enum node_stat_item idx, int val)
 {
-        preempt_disable();
+        unsigned long flags;
+
+        local_irq_save(flags);
         __mod_lruvec_page_state(page, idx, val);
-        preempt_enable();
+        local_irq_restore(flags);
 }
 
 unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order,
@@ -659,9 +665,11 @@ static inline void __count_memcg_events(struct mem_cgroup *memcg,
 static inline void count_memcg_events(struct mem_cgroup *memcg,
                                       int idx, unsigned long count)
 {
-        preempt_disable();
+        unsigned long flags;
+
+        local_irq_save(flags);
         __count_memcg_events(memcg, idx, count);
-        preempt_enable();
+        local_irq_restore(flags);
 }
 
 /* idx can be of type enum memcg_event_item or vm_event_item */
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 6ed79a8a8318..9d3a03364e6e 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -453,8 +453,8 @@ struct mlx5_core_srq {
         struct mlx5_core_rsc_common     common; /* must be first */
         u32             srqn;
         int             max;
-        int             max_gs;
-        int             max_avail_gather;
+        size_t          max_gs;
+        size_t          max_avail_gather;
         int             wqe_shift;
         void (*event)   (struct mlx5_core_srq *, enum mlx5_event);
 
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index c30b32e3c862..10191c28fc04 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -127,10 +127,4 @@ static __always_inline enum lru_list page_lru(struct page *page)
 
 #define lru_to_page(head) (list_entry((head)->prev, struct page, lru))
 
-#ifdef arch_unmap_kpfn
-extern void arch_unmap_kpfn(unsigned long pfn);
-#else
-static __always_inline void arch_unmap_kpfn(unsigned long pfn) { }
-#endif
-
 #endif
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index f25c13423bd4..cb3bbed4e633 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -66,6 +66,11 @@ struct mutex {
 #endif
 };
 
+/*
+ * Internal helper function; C doesn't allow us to hide it :/
+ *
+ * DO NOT USE (outside of mutex code).
+ */
 static inline struct task_struct *__mutex_owner(struct mutex *lock)
 {
         return (struct task_struct *)(atomic_long_read(&lock->owner) & ~0x07);
diff --git a/include/linux/net.h b/include/linux/net.h
index 91216b16feb7..2a0391eea05c 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -222,6 +222,7 @@ enum {
 int sock_wake_async(struct socket_wq *sk_wq, int how, int band);
 int sock_register(const struct net_proto_family *fam);
 void sock_unregister(int family);
+bool sock_is_registered(int family);
 int __sock_create(struct net *net, int family, int type, int proto,
                   struct socket **res, int kern);
 int sock_create(int family, int type, int proto, struct socket **res);
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 1313b35c3ab7..14529511c4b8 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -285,6 +285,8 @@ unsigned int *xt_alloc_entry_offsets(unsigned int size);
 bool xt_find_jump_offset(const unsigned int *offsets,
                          unsigned int target, unsigned int size);
 
+int xt_check_proc_name(const char *name, unsigned int size);
+
 int xt_check_match(struct xt_mtchk_param *, unsigned int size, u_int8_t proto,
                    bool inv_proto);
 int xt_check_target(struct xt_tgchk_param *, unsigned int size, u_int8_t proto,
diff --git a/include/linux/nospec.h b/include/linux/nospec.h
index b99bced39ac2..e791ebc65c9c 100644
--- a/include/linux/nospec.h
+++ b/include/linux/nospec.h
@@ -5,6 +5,7 @@
 
 #ifndef _LINUX_NOSPEC_H
 #define _LINUX_NOSPEC_H
+#include <asm/barrier.h>
 
 /**
  * array_index_mask_nospec() - generate a ~0 mask when index < size, 0 otherwise
@@ -20,20 +21,6 @@ static inline unsigned long array_index_mask_nospec(unsigned long index,
                                                     unsigned long size)
 {
         /*
-         * Warn developers about inappropriate array_index_nospec() usage.
-         *
-         * Even if the CPU speculates past the WARN_ONCE branch, the
-         * sign bit of @index is taken into account when generating the
-         * mask.
-         *
-         * This warning is compiled out when the compiler can infer that
-         * @index and @size are less than LONG_MAX.
-         */
-        if (WARN_ONCE(index > LONG_MAX || size > LONG_MAX,
-                        "array_index_nospec() limited to range of [0, LONG_MAX]\n"))
-                return 0;
-
-        /*
          * Always calculate and emit the mask even if the compiler
          * thinks the mask is not needed. The compiler does not take
          * into account the value of @index under speculation.
@@ -66,7 +53,6 @@ static inline unsigned long array_index_mask_nospec(unsigned long index,
         BUILD_BUG_ON(sizeof(_i) > sizeof(long));                        \
         BUILD_BUG_ON(sizeof(_s) > sizeof(long));                        \
                                                                         \
-        _i &= _mask;                                                    \
-        _i;                                                             \
+        (typeof(_i)) (_i & _mask);                                      \
 })
 #endif /* _LINUX_NOSPEC_H */
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 88865e0ebf4d..091033a6b836 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -13,7 +13,6 @@ struct device_node;
 struct device_node *of_pci_find_child_device(struct device_node *parent,
                                              unsigned int devfn);
 int of_pci_get_devfn(struct device_node *np);
-int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
 int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
 int of_get_pci_domain_nr(struct device_node *node);
 int of_pci_get_max_link_speed(struct device_node *node);
@@ -34,12 +33,6 @@ static inline int of_pci_get_devfn(struct device_node *np)
 }
 
 static inline int
-of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-        return 0;
-}
-
-static inline int
 of_pci_parse_bus_range(struct device_node *node, struct resource *res)
 {
         return -EINVAL;
@@ -67,6 +60,16 @@ of_pci_get_max_link_speed(struct device_node *node)
 static inline void of_pci_check_probe_only(void) { }
 #endif
 
+#if IS_ENABLED(CONFIG_OF_IRQ)
+int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
+#else
+static inline int
+of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+        return 0;
+}
+#endif
+
 #if defined(CONFIG_OF_ADDRESS)
 int of_pci_get_host_bridge_resources(struct device_node *dev,
                         unsigned char busno, unsigned char bus_max,
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index 864d167a1073..009cdf3d65b6 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -30,10 +30,14 @@
  * calls io_destroy() or the process exits.
  *
  * In the aio code, kill_ioctx() is called when we wish to destroy a kioctx; it
- * calls percpu_ref_kill(), then hlist_del_rcu() and synchronize_rcu() to remove
- * the kioctx from the proccess's list of kioctxs - after that, there can't be
- * any new users of the kioctx (from lookup_ioctx()) and it's then safe to drop
- * the initial ref with percpu_ref_put().
+ * removes the kioctx from the proccess's table of kioctxs and kills percpu_ref.
+ * After that, there can't be any new users of the kioctx (from lookup_ioctx())
+ * and it's then safe to drop the initial ref with percpu_ref_put().
+ *
+ * Note that the free path, free_ioctx(), needs to go through explicit call_rcu()
+ * to synchronize with RCU protected lookup_ioctx().  percpu_ref operations don't
+ * imply RCU grace periods of any kind and if a user wants to combine percpu_ref
+ * with RCU protection, it must be done explicitly.
  *
  * Code that does a two stage shutdown like this often needs some kind of
  * explicit synchronization to ensure the initial refcount can only be dropped
@@ -113,8 +117,10 @@ void percpu_ref_reinit(struct percpu_ref *ref);
  * Must be used to drop the initial ref on a percpu refcount; must be called
  * precisely once before shutdown.
  *
- * Puts @ref in non percpu mode, then does a call_rcu() before gathering up the
- * percpu counters and dropping the initial ref.
+ * Switches @ref into atomic mode before gathering up the percpu counters
+ * and dropping the initial ref.
+ *
+ * There are no implied RCU grace periods between kill and release.
  */
 static inline void percpu_ref_kill(struct percpu_ref *ref)
 {
diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h
index af0f44effd44..40036a57d072 100644
--- a/include/linux/perf/arm_pmu.h
+++ b/include/linux/perf/arm_pmu.h
@@ -14,26 +14,10 @@
 
 #include <linux/interrupt.h>
 #include <linux/perf_event.h>
+#include <linux/platform_device.h>
 #include <linux/sysfs.h>
 #include <asm/cputype.h>
 
-/*
- * struct arm_pmu_platdata - ARM PMU platform data
- *
- * @handle_irq: an optional handler which will be called from the
- *      interrupt and passed the address of the low level handler,
- *      and can be used to implement any platform specific handling
- *      before or after calling it.
- *
- * @irq_flags: if non-zero, these flags will be passed to request_irq
- *             when requesting interrupts for this PMU device.
- */
-struct arm_pmu_platdata {
-        irqreturn_t (*handle_irq)(int irq, void *dev,
-                                  irq_handler_t pmu_handler);
-        unsigned long irq_flags;
-};
-
 #ifdef CONFIG_ARM_PMU
 
 /*
@@ -92,7 +76,6 @@ enum armpmu_attr_groups {
 
 struct arm_pmu {
         struct pmu      pmu;
-        cpumask_t       active_irqs;
         cpumask_t       supported_cpus;
         char            *name;
         irqreturn_t     (*handle_irq)(int irq_num, void *dev);
@@ -174,12 +157,11 @@ static inline int arm_pmu_acpi_probe(armpmu_init_fn init_fn) { return 0; }
 
 /* Internal functions only for core arm_pmu code */
 struct arm_pmu *armpmu_alloc(void);
+struct arm_pmu *armpmu_alloc_atomic(void);
 void armpmu_free(struct arm_pmu *pmu);
 int armpmu_register(struct arm_pmu *pmu);
-int armpmu_request_irqs(struct arm_pmu *armpmu);
-void armpmu_free_irqs(struct arm_pmu *armpmu);
-int armpmu_request_irq(struct arm_pmu *armpmu, int cpu);
-void armpmu_free_irq(struct arm_pmu *armpmu, int cpu);
+int armpmu_request_irq(int irq, int cpu);
+void armpmu_free_irq(int irq, int cpu);
 
 #define ARMV8_PMU_PDEV_NAME "armv8-pmu"
 
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 5a0c3e53e7c2..7c4c2379e010 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -924,6 +924,7 @@ void phy_device_remove(struct phy_device *phydev);
 int phy_init_hw(struct phy_device *phydev);
 int phy_suspend(struct phy_device *phydev);
 int phy_resume(struct phy_device *phydev);
+int __phy_resume(struct phy_device *phydev);
 int phy_loopback(struct phy_device *phydev, bool enable);
 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
                               phy_interface_t interface);
@@ -983,6 +984,10 @@ static inline int genphy_no_soft_reset(struct phy_device *phydev)
 {
         return 0;
 }
+int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad,
+                                u16 regnum);
+int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
+                                 u16 regnum, u16 val);
 
 /* Clause 45 PHY */
 int genphy_c45_restart_aneg(struct phy_device *phydev);
@@ -1011,7 +1016,6 @@ int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
 int phy_drivers_register(struct phy_driver *new_driver, int n,
                          struct module *owner);
 void phy_state_machine(struct work_struct *work);
-void phy_change(struct phy_device *phydev);
 void phy_change_work(struct work_struct *work);
 void phy_mac_interrupt(struct phy_device *phydev);
 void phy_start_machine(struct phy_device *phydev);
diff --git a/include/linux/property.h b/include/linux/property.h
index 769d372c1edf..2eea4b310fc2 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -283,7 +283,7 @@ bool device_dma_supported(struct device *dev);
 
 enum dev_dma_attr device_get_dma_attr(struct device *dev);
 
-void *device_get_match_data(struct device *dev);
+const void *device_get_match_data(struct device *dev);
 
 int device_get_phy_mode(struct device *dev);
 
diff --git a/include/linux/ptr_ring.h b/include/linux/ptr_ring.h
index b884b7794187..e6335227b844 100644
--- a/include/linux/ptr_ring.h
+++ b/include/linux/ptr_ring.h
@@ -469,7 +469,7 @@ static inline int ptr_ring_consume_batched_bh(struct ptr_ring *r,
  */
 static inline void **__ptr_ring_init_queue_alloc(unsigned int size, gfp_t gfp)
 {
-        if (size * sizeof(void *) > KMALLOC_MAX_SIZE)
+        if (size > KMALLOC_MAX_SIZE / sizeof(void *))
                 return NULL;
         return kvmalloc_array(size, sizeof(void *), gfp | __GFP_ZERO);
 }
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index c9df2527e0cd..668a21f04b09 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -766,8 +766,10 @@ slow_path:
                 if (!key ||
                     (params.obj_cmpfn ?
                      params.obj_cmpfn(&arg, rht_obj(ht, head)) :
-                     rhashtable_compare(&arg, rht_obj(ht, head))))
+                     rhashtable_compare(&arg, rht_obj(ht, head)))) {
+                        pprev = &head->next;
                         continue;
+                }
 
                 data = rht_obj(ht, head);
 
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 1149533aa2fa..9806184bb3d5 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -36,7 +36,18 @@ static inline void mmgrab(struct mm_struct *mm)
         atomic_inc(&mm->mm_count);
 }
 
-extern void mmdrop(struct mm_struct *mm);
+extern void __mmdrop(struct mm_struct *mm);
+
+static inline void mmdrop(struct mm_struct *mm)
+{
+        /*
+         * The implicit full barrier implied by atomic_dec_and_test() is
+         * required by the membarrier system call before returning to
+         * user-space, after storing to rq->curr.
+         */
+        if (unlikely(atomic_dec_and_test(&mm->mm_count)))
+                __mmdrop(mm);
+}
 
 /**
  * mmget() - Pin the address space associated with a &struct mm_struct.
diff --git a/include/linux/sched/user.h b/include/linux/sched/user.h
index 0dcf4e480ef7..96fe289c4c6e 100644
--- a/include/linux/sched/user.h
+++ b/include/linux/sched/user.h
@@ -4,6 +4,7 @@
 
 #include <linux/uidgid.h>
 #include <linux/atomic.h>
+#include <linux/ratelimit.h>
 
 struct key;
 
@@ -41,6 +42,9 @@ struct user_struct {
     defined(CONFIG_NET)
         atomic_long_t locked_vm;
 #endif
+
+        /* Miscellaneous per-user rate limit */
+        struct ratelimit_state ratelimit;
 };
 
 extern int uids_sysfs_init(void);
diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
index dc368b8ce215..11c86fbfeb98 100644
--- a/include/linux/semaphore.h
+++ b/include/linux/semaphore.h
@@ -4,7 +4,7 @@
  *
  * Distributed under the terms of the GNU GPL, version 2
  *
- * Please see kernel/semaphore.c for documentation of these functions
+ * Please see kernel/locking/semaphore.c for documentation of these functions
  */
 #ifndef __LINUX_SEMAPHORE_H
 #define __LINUX_SEMAPHORE_H
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 5ebc0f869720..99df17109e1b 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3285,8 +3285,7 @@ int skb_zerocopy(struct sk_buff *to, struct sk_buff *from,
 void skb_split(struct sk_buff *skb, struct sk_buff *skb1, const u32 len);
 int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen);
 void skb_scrub_packet(struct sk_buff *skb, bool xnet);
-unsigned int skb_gso_transport_seglen(const struct sk_buff *skb);
-bool skb_gso_validate_mtu(const struct sk_buff *skb, unsigned int mtu);
+bool skb_gso_validate_network_len(const struct sk_buff *skb, unsigned int mtu);
 bool skb_gso_validate_mac_len(const struct sk_buff *skb, unsigned int len);
 struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features);
 struct sk_buff *skb_vlan_untag(struct sk_buff *skb);
@@ -3646,7 +3645,7 @@ static inline bool __skb_checksum_validate_needed(struct sk_buff *skb,
         return true;
 }
 
-/* For small packets <= CHECKSUM_BREAK peform checksum complete directly
+/* For small packets <= CHECKSUM_BREAK perform checksum complete directly
  * in checksum_init.
  */
 #define CHECKSUM_BREAK 76
@@ -4038,6 +4037,12 @@ static inline bool skb_is_gso_v6(const struct sk_buff *skb)
         return skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6;
 }
 
+/* Note: Should be called only if skb_is_gso(skb) is true */
+static inline bool skb_is_gso_sctp(const struct sk_buff *skb)
+{
+        return skb_shinfo(skb)->gso_type & SKB_GSO_SCTP;
+}
+
 static inline void skb_gso_reset(struct sk_buff *skb)
 {
         skb_shinfo(skb)->gso_size = 0;
@@ -4045,6 +4050,22 @@ static inline void skb_gso_reset(struct sk_buff *skb)
         skb_shinfo(skb)->gso_type = 0;
 }
 
+static inline void skb_increase_gso_size(struct skb_shared_info *shinfo,
+                                         u16 increment)
+{
+        if (WARN_ON_ONCE(shinfo->gso_size == GSO_BY_FRAGS))
+                return;
+        shinfo->gso_size += increment;
+}
+
+static inline void skb_decrease_gso_size(struct skb_shared_info *shinfo,
+                                         u16 decrement)
+{
+        if (WARN_ON_ONCE(shinfo->gso_size == GSO_BY_FRAGS))
+                return;
+        shinfo->gso_size -= decrement;
+}
+
 void __skb_warn_lro_forwarding(const struct sk_buff *skb);
 
 static inline bool skb_warn_if_lro(const struct sk_buff *skb)
@@ -4104,38 +4125,6 @@ static inline bool skb_head_is_locked(const struct sk_buff *skb)
         return !skb->head_frag || skb_cloned(skb);
 }
 
-/**
- * skb_gso_network_seglen - Return length of individual segments of a gso packet
- *
- * @skb: GSO skb
- *
- * skb_gso_network_seglen is used to determine the real size of the
- * individual segments, including Layer3 (IP, IPv6) and L4 headers (TCP/UDP).
- *
- * The MAC/L2 header is not accounted for.
- */
-static inline unsigned int skb_gso_network_seglen(const struct sk_buff *skb)
-{
-        unsigned int hdr_len = skb_transport_header(skb) -
-                               skb_network_header(skb);
-        return hdr_len + skb_gso_transport_seglen(skb);
-}
-
-/**
- * skb_gso_mac_seglen - Return length of individual segments of a gso packet
- *
- * @skb: GSO skb
- *
- * skb_gso_mac_seglen is used to determine the real size of the
- * individual segments, including MAC/L2, Layer3 (IP, IPv6) and L4
- * headers (TCP/UDP).
- */
-static inline unsigned int skb_gso_mac_seglen(const struct sk_buff *skb)
-{
-        unsigned int hdr_len = skb_transport_header(skb) - skb_mac_header(skb);
-        return hdr_len + skb_gso_transport_seglen(skb);
-}
-
 /* Local Checksum Offload.
  * Compute outer checksum based on the assumption that the
  * inner checksum will be offloaded later.
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 7b6a59f722a3..a1a3f4ed94ce 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -337,8 +337,6 @@ extern void deactivate_file_page(struct page *page);
 extern void mark_page_lazyfree(struct page *page);
 extern void swap_setup(void);
 
-extern void add_page_to_unevictable_list(struct page *page);
-
 extern void lru_cache_add_active_or_unevictable(struct page *page,
                                                 struct vm_area_struct *vma);
 
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 0a6c71e0ad01..47f8af22f216 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -364,6 +364,7 @@ struct tty_file_private {
 #define TTY_PTY_LOCK            16      /* pty private */
 #define TTY_NO_WRITE_SPLIT      17      /* Preserve write boundaries to driver */
 #define TTY_HUPPED              18      /* Post driver->hangup() */
+#define TTY_HUPPING             19      /* Hangup in progress */
 #define TTY_LDISC_HALTED        22      /* Line discipline is halted */
 
 /* Values for tty->flow_change */
diff --git a/include/linux/u64_stats_sync.h b/include/linux/u64_stats_sync.h
index 5bdbd9f49395..07ee0f84a46c 100644
--- a/include/linux/u64_stats_sync.h
+++ b/include/linux/u64_stats_sync.h
@@ -90,6 +90,28 @@ static inline void u64_stats_update_end(struct u64_stats_sync *syncp)
 #endif
 }
 
+static inline unsigned long
+u64_stats_update_begin_irqsave(struct u64_stats_sync *syncp)
+{
+        unsigned long flags = 0;
+
+#if BITS_PER_LONG==32 && defined(CONFIG_SMP)
+        local_irq_save(flags);
+        write_seqcount_begin(&syncp->seq);
+#endif
+        return flags;
+}
+
+static inline void
+u64_stats_update_end_irqrestore(struct u64_stats_sync *syncp,
+                                unsigned long flags)
+{
+#if BITS_PER_LONG==32 && defined(CONFIG_SMP)
+        write_seqcount_end(&syncp->seq);
+        local_irq_restore(flags);
+#endif
+}
+
 static inline void u64_stats_update_begin_raw(struct u64_stats_sync *syncp)
 {
 #if BITS_PER_LONG==32 && defined(CONFIG_SMP)
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index f1fcec2fd5f8..b7a99ce56bc9 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -63,4 +63,7 @@
  */
 #define USB_QUIRK_DISCONNECT_SUSPEND            BIT(12)
 
+/* Device needs a pause after every control message. */
+#define USB_QUIRK_DELAY_CTRL_MSG                BIT(13)
+
 #endif /* __LINUX_USB_QUIRKS_H */
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 4a54ef96aff5..0c3301421c57 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -456,7 +456,6 @@ extern int schedule_on_each_cpu(work_func_t func);
 int execute_in_process_context(work_func_t fn, struct execute_work *);
 
 extern bool flush_work(struct work_struct *work);
-extern bool cancel_work(struct work_struct *work);
 extern bool cancel_work_sync(struct work_struct *work);
 
 extern bool flush_delayed_work(struct delayed_work *dwork);
@@ -465,6 +464,7 @@ extern bool cancel_delayed_work_sync(struct delayed_work *dwork);
 
 extern void workqueue_set_max_active(struct workqueue_struct *wq,
                                      int max_active);
+extern struct work_struct *current_work(void);
 extern bool current_is_workqueue_rescuer(void);
 extern bool workqueue_congested(int cpu, struct workqueue_struct *wq);
 extern unsigned int work_busy(struct work_struct *work);
diff --git a/include/media/demux.h b/include/media/demux.h
index c4df6cee48e6..bf00a5a41a90 100644
--- a/include/media/demux.h
+++ b/include/media/demux.h
@@ -117,7 +117,7 @@ struct dmx_ts_feed {
  *                specified by @filter_value that will be used on the filter
  *                match logic.
  * @filter_mode:  Contains a 16 bytes (128 bits) filter mode.
- * @parent:       Pointer to struct dmx_section_feed.
+ * @parent:       Back-pointer to struct dmx_section_feed.
  * @priv:         Pointer to private data of the API client.
  *
  *
@@ -130,8 +130,9 @@ struct dmx_section_filter {
         u8 filter_value[DMX_MAX_FILTER_SIZE];
         u8 filter_mask[DMX_MAX_FILTER_SIZE];
         u8 filter_mode[DMX_MAX_FILTER_SIZE];
-        struct dmx_section_feed *parent; /* Back-pointer */
-        void *priv; /* Pointer to private data of the API client */
+        struct dmx_section_feed *parent;
+
+        void *priv;
 };
 
 /**
@@ -193,6 +194,10 @@ struct dmx_section_feed {
  * @buffer2:            Pointer to the tail of the filtered TS packets, or NULL.
  * @buffer2_length:     Length of the TS data in buffer2.
  * @source:             Indicates which TS feed is the source of the callback.
+ * @buffer_flags:       Address where buffer flags are stored. Those are
+ *                      used to report discontinuity users via DVB
+ *                      memory mapped API, as defined by
+ *                      &enum dmx_buffer_flags.
  *
  * This function callback prototype, provided by the client of the demux API,
  * is called from the demux code. The function is only called when filtering
@@ -245,7 +250,8 @@ typedef int (*dmx_ts_cb)(const u8 *buffer1,
                          size_t buffer1_length,
                          const u8 *buffer2,
                          size_t buffer2_length,
-                         struct dmx_ts_feed *source);
+                         struct dmx_ts_feed *source,
+                         u32 *buffer_flags);
 
 /**
  * typedef dmx_section_cb - DVB demux TS filter callback function prototype
@@ -261,6 +267,10 @@ typedef int (*dmx_ts_cb)(const u8 *buffer1,
  *                      including headers and CRC.
  * @source:             Indicates which section feed is the source of the
  *                      callback.
+ * @buffer_flags:       Address where buffer flags are stored. Those are
+ *                      used to report discontinuity users via DVB
+ *                      memory mapped API, as defined by
+ *                      &enum dmx_buffer_flags.
  *
  * This function callback prototype, provided by the client of the demux API,
  * is called from the demux code. The function is only called when
@@ -286,7 +296,8 @@ typedef int (*dmx_section_cb)(const u8 *buffer1,
                               size_t buffer1_len,
                               const u8 *buffer2,
                               size_t buffer2_len,
-                              struct dmx_section_filter *source);
+                              struct dmx_section_filter *source,
+                              u32 *buffer_flags);
 
 /*
  * DVB Front-End
diff --git a/include/media/dmxdev.h b/include/media/dmxdev.h
index 2f5cb2c7b6a7..baafa3b8aca4 100644
--- a/include/media/dmxdev.h
+++ b/include/media/dmxdev.h
@@ -163,6 +163,7 @@ struct dmxdev_filter {
  * @demux:              pointer to &struct dmx_demux.
  * @filternum:          number of filters.
  * @capabilities:       demux capabilities as defined by &enum dmx_demux_caps.
+ * @may_do_mmap:        flag used to indicate if the device may do mmap.
  * @exit:               flag to indicate that the demux is being released.
  * @dvr_orig_fe:        pointer to &struct dmx_frontend.
  * @dvr_buffer:         embedded &struct dvb_ringbuffer for DVB output.
@@ -180,6 +181,7 @@ struct dmxdev {
         int filternum;
         int capabilities;
 
+        unsigned int may_do_mmap:1;
         unsigned int exit:1;
 #define DMXDEV_CAP_DUPLEX 1
         struct dmx_frontend *dvr_orig_fe;
diff --git a/include/media/dvb_demux.h b/include/media/dvb_demux.h
index b07092038f4b..3b6aeca7a49e 100644
--- a/include/media/dvb_demux.h
+++ b/include/media/dvb_demux.h
@@ -115,6 +115,8 @@ struct dvb_demux_filter {
  * @pid:        PID to be filtered.
  * @timeout:    feed timeout.
  * @filter:     pointer to &struct dvb_demux_filter.
+ * @buffer_flags: Buffer flags used to report discontinuity users via DVB
+ *                memory mapped API, as defined by &enum dmx_buffer_flags.
  * @ts_type:    type of TS, as defined by &enum ts_filter_type.
  * @pes_type:   type of PES, as defined by &enum dmx_ts_pes.
  * @cc:         MPEG-TS packet continuity counter
@@ -145,6 +147,8 @@ struct dvb_demux_feed {
         ktime_t timeout;
         struct dvb_demux_filter *filter;
 
+        u32 buffer_flags;
+
         enum ts_filter_type ts_type;
         enum dmx_ts_pes pes_type;
 
diff --git a/include/media/dvb_vb2.h b/include/media/dvb_vb2.h
index 01d1202d1a55..8cb88452cd6c 100644
--- a/include/media/dvb_vb2.h
+++ b/include/media/dvb_vb2.h
@@ -85,6 +85,12 @@ struct dvb_buffer {
  * @nonblocking:
  *              If different than zero, device is operating on non-blocking
  *              mode.
+ * @flags:      buffer flags as defined by &enum dmx_buffer_flags.
+ *              Filled only at &DMX_DQBUF. &DMX_QBUF should zero this field.
+ * @count:      monotonic counter for filled buffers. Helps to identify
+ *              data stream loses. Filled only at &DMX_DQBUF. &DMX_QBUF should
+ *              zero this field.
+ *
  * @name:       name of the device type. Currently, it can either be
  *              "dvr" or "demux_filter".
  */
@@ -100,10 +106,14 @@ struct dvb_vb2_ctx {
         int     buf_siz;
         int     buf_cnt;
         int     nonblocking;
+
+        enum dmx_buffer_flags flags;
+        u32     count;
+
         char    name[DVB_VB2_NAME_MAX + 1];
 };
 
-#ifndef DVB_MMAP
+#ifndef CONFIG_DVB_MMAP
 static inline int dvb_vb2_init(struct dvb_vb2_ctx *ctx,
                                const char *name, int non_blocking)
 {
@@ -114,7 +124,7 @@ static inline int dvb_vb2_release(struct dvb_vb2_ctx *ctx)
         return 0;
 };
 #define dvb_vb2_is_streaming(ctx) (0)
-#define dvb_vb2_fill_buffer(ctx, file, wait) (0)
+#define dvb_vb2_fill_buffer(ctx, file, wait, flags) (0)
 
 static inline __poll_t dvb_vb2_poll(struct dvb_vb2_ctx *ctx,
                                     struct file *file,
@@ -153,9 +163,13 @@ int dvb_vb2_is_streaming(struct dvb_vb2_ctx *ctx);
  * @ctx:        control struct for VB2 handler
  * @src:        place where the data is stored
  * @len:        number of bytes to be copied from @src
+ * @buffer_flags:
+ *              pointer to buffer flags as defined by &enum dmx_buffer_flags.
+ *              can be NULL.
  */
 int dvb_vb2_fill_buffer(struct dvb_vb2_ctx *ctx,
-                        const unsigned char *src, int len);
+                        const unsigned char *src, int len,
+                        enum dmx_buffer_flags *buffer_flags);
 
 /**
  * dvb_vb2_poll - Wrapper to vb2_core_streamon() for Digital TV
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 6545b03e97f7..4de35ed12bcc 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -257,6 +257,18 @@ struct devlink_resource_size_params {
         enum devlink_resource_unit unit;
 };
 
+static inline void
+devlink_resource_size_params_init(struct devlink_resource_size_params *size_params,
+                                  u64 size_min, u64 size_max,
+                                  u64 size_granularity,
+                                  enum devlink_resource_unit unit)
+{
+        size_params->size_min = size_min;
+        size_params->size_max = size_max;
+        size_params->size_granularity = size_granularity;
+        size_params->unit = unit;
+}
+
 /**
  * struct devlink_resource - devlink resource
  * @name: name of the resource
@@ -278,7 +290,7 @@ struct devlink_resource {
         u64 size_new;
         bool size_valid;
         struct devlink_resource *parent;
-        struct devlink_resource_size_params *size_params;
+        struct devlink_resource_size_params size_params;
         struct list_head list;
         struct list_head resource_list;
         const struct devlink_resource_ops *resource_ops;
@@ -402,7 +414,7 @@ int devlink_resource_register(struct devlink *devlink,
                               u64 resource_size,
                               u64 resource_id,
                               u64 parent_resource_id,
-                              struct devlink_resource_size_params *size_params,
+                              const struct devlink_resource_size_params *size_params,
                               const struct devlink_resource_ops *resource_ops);
 void devlink_resources_unregister(struct devlink *devlink,
                                   struct devlink_resource *resource);
@@ -556,7 +568,7 @@ devlink_resource_register(struct devlink *devlink,
                           u64 resource_size,
                           u64 resource_id,
                           u64 parent_resource_id,
-                          struct devlink_resource_size_params *size_params,
+                          const struct devlink_resource_size_params *size_params,
                           const struct devlink_resource_ops *resource_ops)
 {
         return 0;
diff --git a/include/net/ip.h b/include/net/ip.h
index 746abff9ce51..f49b3a576bec 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -328,6 +328,13 @@ int ip_decrease_ttl(struct iphdr *iph)
         return --iph->ttl;
 }
 
+static inline int ip_mtu_locked(const struct dst_entry *dst)
+{
+        const struct rtable *rt = (const struct rtable *)dst;
+
+        return rt->rt_mtu_locked || dst_metric_locked(dst, RTAX_MTU);
+}
+
 static inline
 int ip_dont_fragment(const struct sock *sk, const struct dst_entry *dst)
 {
@@ -335,7 +342,7 @@ int ip_dont_fragment(const struct sock *sk, const struct dst_entry *dst)
 
         return  pmtudisc == IP_PMTUDISC_DO ||
                 (pmtudisc == IP_PMTUDISC_WANT &&
-                 !(dst_metric_locked(dst, RTAX_MTU)));
+                 !ip_mtu_locked(dst));
 }
 
 static inline bool ip_sk_accept_pmtu(const struct sock *sk)
@@ -361,7 +368,7 @@ static inline unsigned int ip_dst_mtu_maybe_forward(const struct dst_entry *dst,
         struct net *net = dev_net(dst->dev);
 
         if (net->ipv4.sysctl_ip_fwd_use_pmtu ||
-            dst_metric_locked(dst, RTAX_MTU) ||
+            ip_mtu_locked(dst) ||
             !forwarding)
                 return dst_mtu(dst);
 
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 27d23a65f3cd..ac0866bb9e93 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -179,6 +179,9 @@ void rt6_disable_ip(struct net_device *dev, unsigned long event);
 void rt6_sync_down_dev(struct net_device *dev, unsigned long event);
 void rt6_multipath_rebalance(struct rt6_info *rt);
 
+void rt6_uncached_list_add(struct rt6_info *rt);
+void rt6_uncached_list_del(struct rt6_info *rt);
+
 static inline const struct rt6_info *skb_rt6_info(const struct sk_buff *skb)
 {
         const struct dst_entry *dst = skb_dst(skb);
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index f80524396c06..77d0a78cf7d2 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -59,6 +59,7 @@ struct fib_nh_exception {
         int                             fnhe_genid;
         __be32                          fnhe_daddr;
         u32                             fnhe_pmtu;
+        bool                            fnhe_mtu_locked;
         __be32                          fnhe_gw;
         unsigned long                   fnhe_expires;
         struct rtable __rcu             *fnhe_rth_input;
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 906e90223066..2b581bd93812 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2063,6 +2063,9 @@ struct ieee80211_txq {
  * @IEEE80211_HW_SUPPORTS_TDLS_BUFFER_STA: Hardware supports buffer STA on
  *      TDLS links.
  *
+ * @IEEE80211_HW_DOESNT_SUPPORT_QOS_NDP: The driver (or firmware) doesn't
+ *      support QoS NDP for AP probing - that's most likely a driver bug.
+ *
  * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
  */
 enum ieee80211_hw_flags {
@@ -2106,6 +2109,7 @@ enum ieee80211_hw_flags {
         IEEE80211_HW_REPORTS_LOW_ACK,
         IEEE80211_HW_SUPPORTS_TX_FRAG,
         IEEE80211_HW_SUPPORTS_TDLS_BUFFER_STA,
+        IEEE80211_HW_DOESNT_SUPPORT_QOS_NDP,
 
         /* keep last, obviously */
         NUM_IEEE80211_HW_FLAGS
@@ -4149,7 +4153,7 @@ void ieee80211_sta_uapsd_trigger(struct ieee80211_sta *sta, u8 tid);
  * The TX headroom reserved by mac80211 for its own tx_status functions.
  * This is enough for the radiotap header.
  */
-#define IEEE80211_TX_STATUS_HEADROOM    14
+#define IEEE80211_TX_STATUS_HEADROOM    ALIGN(14, 4)
 
 /**
  * ieee80211_sta_set_buffered - inform mac80211 about driver-buffered frames
diff --git a/include/net/regulatory.h b/include/net/regulatory.h
index ebc5a2ed8631..f83cacce3308 100644
--- a/include/net/regulatory.h
+++ b/include/net/regulatory.h
@@ -78,7 +78,7 @@ struct regulatory_request {
         int wiphy_idx;
         enum nl80211_reg_initiator initiator;
         enum nl80211_user_reg_hint_type user_reg_hint_type;
-        char alpha2[2];
+        char alpha2[3];
         enum nl80211_dfs_regions dfs_region;
         bool intersect;
         bool processed;
diff --git a/include/net/route.h b/include/net/route.h
index 1eb9ce470e25..20a92ca9e115 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -63,7 +63,8 @@ struct rtable {
         __be32                  rt_gateway;
 
         /* Miscellaneous cached information */
-        u32                     rt_pmtu;
+        u32                     rt_mtu_locked:1,
+                                rt_pmtu:31;
 
         u32                     rt_table_id;
 
@@ -227,6 +228,9 @@ struct in_ifaddr;
 void fib_add_ifaddr(struct in_ifaddr *);
 void fib_del_ifaddr(struct in_ifaddr *, struct in_ifaddr *);
 
+void rt_add_uncached_list(struct rtable *rt);
+void rt_del_uncached_list(struct rtable *rt);
+
 static inline void ip_rt_put(struct rtable *rt)
 {
         /* dst_release() accepts a NULL parameter.
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index e2ab13687fb9..2092d33194dd 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -824,6 +824,16 @@ static inline void __qdisc_drop(struct sk_buff *skb, struct sk_buff **to_free)
         *to_free = skb;
 }
 
+static inline void __qdisc_drop_all(struct sk_buff *skb,
+                                    struct sk_buff **to_free)
+{
+        if (skb->prev)
+                skb->prev->next = *to_free;
+        else
+                skb->next = *to_free;
+        *to_free = skb;
+}
+
 static inline unsigned int __qdisc_queue_drop_head(struct Qdisc *sch,
                                                    struct qdisc_skb_head *qh,
                                                    struct sk_buff **to_free)
@@ -956,6 +966,15 @@ static inline int qdisc_drop(struct sk_buff *skb, struct Qdisc *sch,
         return NET_XMIT_DROP;
 }
 
+static inline int qdisc_drop_all(struct sk_buff *skb, struct Qdisc *sch,
+                                 struct sk_buff **to_free)
+{
+        __qdisc_drop_all(skb, to_free);
+        qdisc_qstats_drop(sch);
+
+        return NET_XMIT_DROP;
+}
+
 /* Length to Time (L2T) lookup in a qdisc_rate_table, to determine how
    long it will take to send a packet given its size.
  */
diff --git a/include/net/sock.h b/include/net/sock.h
index 169c92afcafa..ae23f3b389ca 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1137,6 +1137,7 @@ struct proto {
 
 int proto_register(struct proto *prot, int alloc_slab);
 void proto_unregister(struct proto *prot);
+int sock_load_diag_module(int family, int protocol);
 
 #ifdef SOCK_REFCNT_DEBUG
 static inline void sk_refcnt_debug_inc(struct sock *sk)
diff --git a/include/net/udplite.h b/include/net/udplite.h
index 81bdbf97319b..9185e45b997f 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -64,6 +64,7 @@ static inline int udplite_checksum_init(struct sk_buff *skb, struct udphdr *uh)
                 UDP_SKB_CB(skb)->cscov = cscov;
                 if (skb->ip_summed == CHECKSUM_COMPLETE)
                         skb->ip_summed = CHECKSUM_NONE;
+                skb->csum_valid = 0;
         }
 
         return 0;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 73b2387e3f74..ff3ed435701f 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1537,10 +1537,6 @@ struct ib_xrcd {
 
         struct mutex            tgt_qp_mutex;
         struct list_head        tgt_qp_list;
-        /*
-         * Implementation details of the RDMA core, don't use in drivers:
-         */
-        struct rdma_restrack_entry res;
 };
 
 struct ib_ah {
diff --git a/include/rdma/restrack.h b/include/rdma/restrack.h
index c2d81167c858..2cdf8dcf4bdc 100644
--- a/include/rdma/restrack.h
+++ b/include/rdma/restrack.h
@@ -29,10 +29,6 @@ enum rdma_restrack_type {
          */
         RDMA_RESTRACK_QP,
         /**
-         * @RDMA_RESTRACK_XRCD: XRC domain (XRCD)
-         */
-        RDMA_RESTRACK_XRCD,
-        /**
          * @RDMA_RESTRACK_MAX: Last entry, used for array dclarations
          */
         RDMA_RESTRACK_MAX
diff --git a/include/rdma/uverbs_ioctl.h b/include/rdma/uverbs_ioctl.h
index 6da44079aa58..38287d9d23a1 100644
--- a/include/rdma/uverbs_ioctl.h
+++ b/include/rdma/uverbs_ioctl.h
@@ -276,10 +276,7 @@ struct uverbs_object_tree_def {
  */
 
 struct uverbs_ptr_attr {
-        union {
-                u64             data;
-                void    __user *ptr;
-        };
+        u64             data;
         u16             len;
         /* Combination of bits from enum UVERBS_ATTR_F_XXXX */
         u16             flags;
@@ -351,38 +348,60 @@ static inline const struct uverbs_attr *uverbs_attr_get(const struct uverbs_attr
 }
 
 static inline int uverbs_copy_to(const struct uverbs_attr_bundle *attrs_bundle,
-                                 size_t idx, const void *from)
+                                 size_t idx, const void *from, size_t size)
 {
         const struct uverbs_attr *attr = uverbs_attr_get(attrs_bundle, idx);
         u16 flags;
+        size_t min_size;
 
         if (IS_ERR(attr))
                 return PTR_ERR(attr);
 
+        min_size = min_t(size_t, attr->ptr_attr.len, size);
+        if (copy_to_user(u64_to_user_ptr(attr->ptr_attr.data), from, min_size))
+                return -EFAULT;
+
         flags = attr->ptr_attr.flags | UVERBS_ATTR_F_VALID_OUTPUT;
-        return (!copy_to_user(attr->ptr_attr.ptr, from, attr->ptr_attr.len) &&
-                !put_user(flags, &attr->uattr->flags)) ? 0 : -EFAULT;
+        if (put_user(flags, &attr->uattr->flags))
+                return -EFAULT;
+
+        return 0;
 }
 
-static inline int _uverbs_copy_from(void *to, size_t to_size,
+static inline bool uverbs_attr_ptr_is_inline(const struct uverbs_attr *attr)
+{
+        return attr->ptr_attr.len <= sizeof(attr->ptr_attr.data);
+}
+
+static inline int _uverbs_copy_from(void *to,
                                     const struct uverbs_attr_bundle *attrs_bundle,
-                                    size_t idx)
+                                    size_t idx,
+                                    size_t size)
 {
         const struct uverbs_attr *attr = uverbs_attr_get(attrs_bundle, idx);
 
         if (IS_ERR(attr))
                 return PTR_ERR(attr);
 
-        if (to_size <= sizeof(((struct ib_uverbs_attr *)0)->data))
+        /*
+         * Validation ensures attr->ptr_attr.len >= size. If the caller is
+         * using UVERBS_ATTR_SPEC_F_MIN_SZ then it must call copy_from with
+         * the right size.
+         */
+        if (unlikely(size < attr->ptr_attr.len))
+                return -EINVAL;
+
+        if (uverbs_attr_ptr_is_inline(attr))
                 memcpy(to, &attr->ptr_attr.data, attr->ptr_attr.len);
-        else if (copy_from_user(to, attr->ptr_attr.ptr, attr->ptr_attr.len))
+        else if (copy_from_user(to, u64_to_user_ptr(attr->ptr_attr.data),
+                                attr->ptr_attr.len))
                 return -EFAULT;
 
         return 0;
 }
 
 #define uverbs_copy_from(to, attrs_bundle, idx)                               \
-        _uverbs_copy_from(to, sizeof(*(to)), attrs_bundle, idx)
+        _uverbs_copy_from(to, attrs_bundle, idx, sizeof(*to))
 
 /* =================================================
  *       Definitions -> Specs infrastructure
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index d8d4a902a88d..2280b2351739 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -68,6 +68,9 @@ struct scsi_cmnd {
         struct list_head list;  /* scsi_cmnd participates in queue lists */
         struct list_head eh_entry; /* entry for the host eh_cmd_q */
         struct delayed_work abort_work;
+
+        struct rcu_head rcu;
+
         int eh_eflags;          /* Used by error handlr */
 
         /*
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 1a1df0d21ee3..a8b7bf879ced 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -571,8 +571,6 @@ struct Scsi_Host {
                 struct blk_mq_tag_set   tag_set;
         };
 
-        struct rcu_head rcu;
-
         atomic_t host_busy;                /* commands actually active on low-level */
         atomic_t host_blocked;
 
diff --git a/include/soc/arc/mcip.h b/include/soc/arc/mcip.h
index c2d1b15da136..a91f25151a5b 100644
--- a/include/soc/arc/mcip.h
+++ b/include/soc/arc/mcip.h
@@ -15,6 +15,7 @@
 
 #define ARC_REG_MCIP_BCR        0x0d0
 #define ARC_REG_MCIP_IDU_BCR    0x0D5
+#define ARC_REG_GFRC_BUILD      0x0D6
 #define ARC_REG_MCIP_CMD        0x600
 #define ARC_REG_MCIP_WDATA      0x601
 #define ARC_REG_MCIP_READBACK   0x602
@@ -36,10 +37,14 @@ struct mcip_cmd {
 #define CMD_SEMA_RELEASE                0x12
 
 #define CMD_DEBUG_SET_MASK              0x34
+#define CMD_DEBUG_READ_MASK             0x35
 #define CMD_DEBUG_SET_SELECT            0x36
+#define CMD_DEBUG_READ_SELECT           0x37
 
 #define CMD_GFRC_READ_LO                0x42
 #define CMD_GFRC_READ_HI                0x43
+#define CMD_GFRC_SET_CORE               0x47
+#define CMD_GFRC_READ_CORE              0x48
 
 #define CMD_IDU_ENABLE                  0x71
 #define CMD_IDU_DISABLE                 0x72
diff --git a/include/sound/ac97/regs.h b/include/sound/ac97/regs.h
index 4bb86d379bd5..9a4fa0c3264a 100644
--- a/include/sound/ac97/regs.h
+++ b/include/sound/ac97/regs.h
@@ -31,7 +31,7 @@
 #define AC97_HEADPHONE          0x04    /* Headphone Volume (optional) */
 #define AC97_MASTER_MONO        0x06    /* Master Volume Mono (optional) */
 #define AC97_MASTER_TONE        0x08    /* Master Tone (Bass & Treble) (optional) */
-#define AC97_PC_BEEP            0x0a    /* PC Beep Volume (optinal) */
+#define AC97_PC_BEEP            0x0a    /* PC Beep Volume (optional) */
 #define AC97_PHONE              0x0c    /* Phone Volume (optional) */
 #define AC97_MIC                0x0e    /* MIC Volume */
 #define AC97_LINE               0x10    /* Line In Volume */
diff --git a/include/trace/events/mmc.h b/include/trace/events/mmc.h
index 200f731be557..7b706ff21335 100644
--- a/include/trace/events/mmc.h
+++ b/include/trace/events/mmc.h
@@ -86,8 +86,8 @@ TRACE_EVENT(mmc_request_start,
                   __entry->stop_flags, __entry->stop_retries,
                   __entry->sbc_opcode, __entry->sbc_arg,
                   __entry->sbc_flags, __entry->sbc_retries,
-                  __entry->blocks, __entry->blk_addr,
-                  __entry->blksz, __entry->data_flags, __entry->tag,
+                  __entry->blocks, __entry->blksz,
+                  __entry->blk_addr, __entry->data_flags, __entry->tag,
                   __entry->can_retune, __entry->doing_retune,
                   __entry->retune_now, __entry->need_retune,
                   __entry->hold_retune, __entry->retune_period)
diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h
index b8adf05c534e..7dd8f34c37df 100644
--- a/include/trace/events/xen.h
+++ b/include/trace/events/xen.h
@@ -368,7 +368,7 @@ TRACE_EVENT(xen_mmu_flush_tlb,
             TP_printk("%s", "")
         );
 
-TRACE_EVENT(xen_mmu_flush_tlb_single,
+TRACE_EVENT(xen_mmu_flush_tlb_one_user,
             TP_PROTO(unsigned long addr),
             TP_ARGS(addr),
             TP_STRUCT__entry(
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index 85dc965afd89..99c902e460c2 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -102,13 +102,13 @@ typedef struct siginfo {
                                 short _addr_lsb; /* LSB of the reported address */
                                 /* used when si_code=SEGV_BNDERR */
                                 struct {
-                                        short _dummy_bnd;
+                                        void *_dummy_bnd;
                                         void __user *_lower;
                                         void __user *_upper;
                                 } _addr_bnd;
                                 /* used when si_code=SEGV_PKUERR */
                                 struct {
-                                        short _dummy_pkey;
+                                        void *_dummy_pkey;
                                         __u32 _pkey;
                                 } _addr_pkey;
                         };
diff --git a/include/uapi/drm/virtgpu_drm.h b/include/uapi/drm/virtgpu_drm.h
index 91a31ffed828..9a781f0611df 100644
--- a/include/uapi/drm/virtgpu_drm.h
+++ b/include/uapi/drm/virtgpu_drm.h
@@ -63,6 +63,7 @@ struct drm_virtgpu_execbuffer {
 };
 
 #define VIRTGPU_PARAM_3D_FEATURES 1 /* do we have 3D features in the hw */
+#define VIRTGPU_PARAM_CAPSET_QUERY_FIX 2 /* do we have the capset fix */
 
 struct drm_virtgpu_getparam {
         __u64 param;
diff --git a/include/uapi/linux/blktrace_api.h b/include/uapi/linux/blktrace_api.h
index 20d1490d6377..3c50e07ee833 100644
--- a/include/uapi/linux/blktrace_api.h
+++ b/include/uapi/linux/blktrace_api.h
@@ -131,7 +131,7 @@ enum {
 #define BLKTRACE_BDEV_SIZE      32
 
 /*
- * User setup structure passed with BLKTRACESTART
+ * User setup structure passed with BLKTRACESETUP
  */
 struct blk_user_trace_setup {
         char name[BLKTRACE_BDEV_SIZE];  /* output */
diff --git a/include/uapi/linux/dvb/dmx.h b/include/uapi/linux/dvb/dmx.h
index 5f3c5a918f00..b4112f0b6dd3 100644
--- a/include/uapi/linux/dvb/dmx.h
+++ b/include/uapi/linux/dvb/dmx.h
@@ -212,6 +212,32 @@ struct dmx_stc {
 };
 
 /**
+ * enum dmx_buffer_flags - DMX memory-mapped buffer flags
+ *
+ * @DMX_BUFFER_FLAG_HAD_CRC32_DISCARD:
+ *      Indicates that the Kernel discarded one or more frames due to wrong
+ *      CRC32 checksum.
+ * @DMX_BUFFER_FLAG_TEI:
+ *      Indicates that the Kernel has detected a Transport Error indicator
+ *      (TEI) on a filtered pid.
+ * @DMX_BUFFER_PKT_COUNTER_MISMATCH:
+ *      Indicates that the Kernel has detected a packet counter mismatch
+ *      on a filtered pid.
+ * @DMX_BUFFER_FLAG_DISCONTINUITY_DETECTED:
+ *      Indicates that the Kernel has detected one or more frame discontinuity.
+ * @DMX_BUFFER_FLAG_DISCONTINUITY_INDICATOR:
+ *      Received at least one packet with a frame discontinuity indicator.
+ */
+
+enum dmx_buffer_flags {
+        DMX_BUFFER_FLAG_HAD_CRC32_DISCARD               = 1 << 0,
+        DMX_BUFFER_FLAG_TEI                             = 1 << 1,
+        DMX_BUFFER_PKT_COUNTER_MISMATCH                 = 1 << 2,
+        DMX_BUFFER_FLAG_DISCONTINUITY_DETECTED          = 1 << 3,
+        DMX_BUFFER_FLAG_DISCONTINUITY_INDICATOR         = 1 << 4,
+};
+
+/**
  * struct dmx_buffer - dmx buffer info
  *
  * @index:      id number of the buffer
@@ -220,15 +246,24 @@ struct dmx_stc {
  *              offset from the start of the device memory for this plane,
  *              (or a "cookie" that should be passed to mmap() as offset)
  * @length:     size in bytes of the buffer
+ * @flags:      bit array of buffer flags as defined by &enum dmx_buffer_flags.
+ *              Filled only at &DMX_DQBUF.
+ * @count:      monotonic counter for filled buffers. Helps to identify
+ *              data stream loses. Filled only at &DMX_DQBUF.
  *
  * Contains data exchanged by application and driver using one of the streaming
  * I/O methods.
+ *
+ * Please notice that, for &DMX_QBUF, only @index should be filled.
+ * On &DMX_DQBUF calls, all fields will be filled by the Kernel.
  */
 struct dmx_buffer {
         __u32                   index;
         __u32                   bytesused;
         __u32                   offset;
         __u32                   length;
+        __u32                   flags;
+        __u32                   count;
 };
 
 /**
diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index f8cb5760ea4f..820de5d222d2 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -23,7 +23,6 @@
 #define _UAPI_LINUX_IF_ETHER_H
 
 #include <linux/types.h>
-#include <linux/libc-compat.h>
 
 /*
  *      IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
@@ -31,6 +30,7 @@
  */
 
 #define ETH_ALEN        6               /* Octets in one ethernet addr   */
+#define ETH_TLEN        2               /* Octets in ethernet type field */
 #define ETH_HLEN        14              /* Total octets in header.       */
 #define ETH_ZLEN        60              /* Min. octets in frame sans FCS */
 #define ETH_DATA_LEN    1500            /* Max. octets in payload        */
@@ -151,6 +151,11 @@
  *      This is an Ethernet frame header.
  */
 
+/* allow libcs like musl to deactivate this, glibc does not implement this. */
+#ifndef __UAPI_DEF_ETHHDR
+#define __UAPI_DEF_ETHHDR               1
+#endif
+
 #if __UAPI_DEF_ETHHDR
 struct ethhdr {
         unsigned char   h_dest[ETH_ALEN];       /* destination eth addr */
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 0fb5ef939732..7b26d4b0b052 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -761,6 +761,7 @@ struct kvm_ppc_resize_hpt {
 #define KVM_TRACE_PAUSE           __KVM_DEPRECATED_MAIN_0x07
 #define KVM_TRACE_DISABLE         __KVM_DEPRECATED_MAIN_0x08
 #define KVM_GET_EMULATED_CPUID    _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
+#define KVM_GET_MSR_FEATURE_INDEX_LIST    _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
 
 /*
  * Extension capability list.
@@ -934,6 +935,7 @@ struct kvm_ppc_resize_hpt {
 #define KVM_CAP_S390_AIS_MIGRATION 150
 #define KVM_CAP_PPC_GET_CPU_CHAR 151
 #define KVM_CAP_S390_BPB 152
+#define KVM_CAP_GET_MSR_FEATURES 153
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
diff --git a/include/uapi/linux/libc-compat.h b/include/uapi/linux/libc-compat.h
index fc29efaa918c..8254c937c9f4 100644
--- a/include/uapi/linux/libc-compat.h
+++ b/include/uapi/linux/libc-compat.h
@@ -264,10 +264,4 @@
 
 #endif /* __GLIBC__ */
 
-/* Definitions for if_ether.h */
-/* allow libcs like musl to deactivate this, glibc does not implement this. */
-#ifndef __UAPI_DEF_ETHHDR
-#define __UAPI_DEF_ETHHDR               1
-#endif
-
 #endif /* _UAPI_LIBC_COMPAT_H */
diff --git a/include/uapi/linux/lirc.h b/include/uapi/linux/lirc.h
index 4fe580d36e41..f5bf06ecd87d 100644
--- a/include/uapi/linux/lirc.h
+++ b/include/uapi/linux/lirc.h
@@ -54,7 +54,6 @@
 #define LIRC_CAN_SEND_RAW              LIRC_MODE2SEND(LIRC_MODE_RAW)
 #define LIRC_CAN_SEND_PULSE            LIRC_MODE2SEND(LIRC_MODE_PULSE)
 #define LIRC_CAN_SEND_MODE2            LIRC_MODE2SEND(LIRC_MODE_MODE2)
-#define LIRC_CAN_SEND_SCANCODE         LIRC_MODE2SEND(LIRC_MODE_SCANCODE)
 #define LIRC_CAN_SEND_LIRCCODE         LIRC_MODE2SEND(LIRC_MODE_LIRCCODE)
 
 #define LIRC_CAN_SEND_MASK             0x0000003f
diff --git a/include/uapi/linux/psp-sev.h b/include/uapi/linux/psp-sev.h
index 3d77fe91239a..9008f31c7eb6 100644
--- a/include/uapi/linux/psp-sev.h
+++ b/include/uapi/linux/psp-sev.h
@@ -42,7 +42,7 @@ typedef enum {
         SEV_RET_INVALID_PLATFORM_STATE,
         SEV_RET_INVALID_GUEST_STATE,
         SEV_RET_INAVLID_CONFIG,
-        SEV_RET_INVALID_len,
+        SEV_RET_INVALID_LEN,
         SEV_RET_ALREADY_OWNED,
         SEV_RET_INVALID_CERTIFICATE,
         SEV_RET_POLICY_FAILURE,
diff --git a/include/uapi/linux/ptrace.h b/include/uapi/linux/ptrace.h
index e46d82b91166..d5a1b8a492b9 100644
--- a/include/uapi/linux/ptrace.h
+++ b/include/uapi/linux/ptrace.h
@@ -69,8 +69,8 @@ struct ptrace_peeksiginfo_args {
 #define PTRACE_SECCOMP_GET_METADATA     0x420d
 
 struct seccomp_metadata {
-        unsigned long filter_off;       /* Input: which filter */
-        unsigned int flags;             /* Output: filter's flags */
+        __u64 filter_off;       /* Input: which filter */
+        __u64 flags;            /* Output: filter's flags */
 };
 
 /* Read signals from a shared (process wide) queue */
diff --git a/include/uapi/linux/usb/audio.h b/include/uapi/linux/usb/audio.h
index 17a022c5b414..da3315ed1bcd 100644
--- a/include/uapi/linux/usb/audio.h
+++ b/include/uapi/linux/usb/audio.h
@@ -370,7 +370,7 @@ static inline __u8 uac_processing_unit_bControlSize(struct uac_processing_unit_d
 {
         return (protocol == UAC_VERSION_1) ?
                 desc->baSourceID[desc->bNrInPins + 4] :
-                desc->baSourceID[desc->bNrInPins + 6];
+                2; /* in UAC2, this value is constant */
 }
 
 static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_descriptor *desc,
@@ -378,7 +378,7 @@ static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_de
 {
         return (protocol == UAC_VERSION_1) ?
                 &desc->baSourceID[desc->bNrInPins + 5] :
-                &desc->baSourceID[desc->bNrInPins + 7];
+                &desc->baSourceID[desc->bNrInPins + 6];
 }
 
 static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_descriptor *desc,
diff --git a/include/uapi/misc/ocxl.h b/include/uapi/misc/ocxl.h
index 4b0b0b756f3e..0af83d80fb3e 100644
--- a/include/uapi/misc/ocxl.h
+++ b/include/uapi/misc/ocxl.h
@@ -32,6 +32,22 @@ struct ocxl_ioctl_attach {
         __u64 reserved3;
 };
 
+struct ocxl_ioctl_metadata {
+        __u16 version; // struct version, always backwards compatible
+
+        // Version 0 fields
+        __u8  afu_version_major;
+        __u8  afu_version_minor;
+        __u32 pasid;            // PASID assigned to the current context
+
+        __u64 pp_mmio_size;     // Per PASID MMIO size
+        __u64 global_mmio_size;
+
+        // End version 0 fields
+
+        __u64 reserved[13]; // Total of 16*u64
+};
+
 struct ocxl_ioctl_irq_fd {
         __u64 irq_offset;
         __s32 eventfd;
@@ -45,5 +61,6 @@ struct ocxl_ioctl_irq_fd {
 #define OCXL_IOCTL_IRQ_ALLOC    _IOR(OCXL_MAGIC, 0x11, __u64)
 #define OCXL_IOCTL_IRQ_FREE     _IOW(OCXL_MAGIC, 0x12, __u64)
 #define OCXL_IOCTL_IRQ_SET_FD   _IOW(OCXL_MAGIC, 0x13, struct ocxl_ioctl_irq_fd)
+#define OCXL_IOCTL_GET_METADATA _IOR(OCXL_MAGIC, 0x14, struct ocxl_ioctl_metadata)
 
 #endif /* _UAPI_MISC_OCXL_H */
diff --git a/include/uapi/rdma/rdma_user_ioctl.h b/include/uapi/rdma/rdma_user_ioctl.h
index 03557b5f9aa6..46de0885e800 100644
--- a/include/uapi/rdma/rdma_user_ioctl.h
+++ b/include/uapi/rdma/rdma_user_ioctl.h
@@ -65,7 +65,7 @@ struct ib_uverbs_attr {
         __u16 len;              /* only for pointers */
         __u16 flags;            /* combination of UVERBS_ATTR_F_XXXX */
         __u16 reserved;
-        __u64 data;             /* ptr to command, inline data or idr/fd */
+        __aligned_u64 data;     /* ptr to command, inline data or idr/fd */
 };
 
 struct ib_uverbs_ioctl_hdr {
@@ -73,7 +73,7 @@ struct ib_uverbs_ioctl_hdr {
         __u16 object_id;
         __u16 method_id;
         __u16 num_attrs;
-        __u64 reserved;
+        __aligned_u64 reserved;
         struct ib_uverbs_attr  attrs[0];
 };
 
diff --git a/init/main.c b/init/main.c
index a8100b954839..21efbf6ace93 100644
--- a/init/main.c
+++ b/init/main.c
@@ -89,6 +89,7 @@
 #include <linux/io.h>
 #include <linux/cache.h>
 #include <linux/rodata_test.h>
+#include <linux/jump_label.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -1000,6 +1001,7 @@ static int __ref kernel_init(void *unused)
         /* need to finish all async __init code before freeing the memory */
         async_synchronize_full();
         ftrace_free_init_mem();
+        jump_label_invalidate_initmem();
         free_initmem();
         mark_readonly();
         system_state = SYSTEM_RUNNING;
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index d7f309f74dec..a808f29d4c5a 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -325,9 +325,8 @@ err:
 static int mqueue_fill_super(struct super_block *sb, void *data, int silent)
 {
         struct inode *inode;
-        struct ipc_namespace *ns = data;
+        struct ipc_namespace *ns = sb->s_fs_info;
 
-        sb->s_fs_info = ns;
         sb->s_iflags |= SB_I_NOEXEC | SB_I_NODEV;
         sb->s_blocksize = PAGE_SIZE;
         sb->s_blocksize_bits = PAGE_SHIFT;
@@ -344,44 +343,18 @@ static int mqueue_fill_super(struct super_block *sb, void *data, int silent)
         return 0;
 }
 
-static struct file_system_type mqueue_fs_type;
-/*
- * Return value is pinned only by reference in ->mq_mnt; it will
- * live until ipcns dies.  Caller does not need to drop it.
- */
-static struct vfsmount *mq_internal_mount(void)
-{
-        struct ipc_namespace *ns = current->nsproxy->ipc_ns;
-        struct vfsmount *m = ns->mq_mnt;
-        if (m)
-                return m;
-        m = kern_mount_data(&mqueue_fs_type, ns);
-        spin_lock(&mq_lock);
-        if (unlikely(ns->mq_mnt)) {
-                spin_unlock(&mq_lock);
-                if (!IS_ERR(m))
-                        kern_unmount(m);
-                return ns->mq_mnt;
-        }
-        if (!IS_ERR(m))
-                ns->mq_mnt = m;
-        spin_unlock(&mq_lock);
-        return m;
-}
-
 static struct dentry *mqueue_mount(struct file_system_type *fs_type,
                          int flags, const char *dev_name,
                          void *data)
 {
-        struct vfsmount *m;
-        if (flags & SB_KERNMOUNT)
-                return mount_nodev(fs_type, flags, data, mqueue_fill_super);
-        m = mq_internal_mount();
-        if (IS_ERR(m))
-                return ERR_CAST(m);
-        atomic_inc(&m->mnt_sb->s_active);
-        down_write(&m->mnt_sb->s_umount);
-        return dget(m->mnt_root);
+        struct ipc_namespace *ns;
+        if (flags & SB_KERNMOUNT) {
+                ns = data;
+                data = NULL;
+        } else {
+                ns = current->nsproxy->ipc_ns;
+        }
+        return mount_ns(fs_type, flags, data, ns, ns->user_ns, mqueue_fill_super);
 }
 
 static void init_once(void *foo)
@@ -771,16 +744,13 @@ static int prepare_open(struct dentry *dentry, int oflag, int ro,
 static int do_mq_open(const char __user *u_name, int oflag, umode_t mode,
                       struct mq_attr *attr)
 {
-        struct vfsmount *mnt = mq_internal_mount();
-        struct dentry *root;
+        struct vfsmount *mnt = current->nsproxy->ipc_ns->mq_mnt;
+        struct dentry *root = mnt->mnt_root;
         struct filename *name;
         struct path path;
         int fd, error;
         int ro;
 
-        if (IS_ERR(mnt))
-                return PTR_ERR(mnt);
-
         audit_mq_open(oflag, mode, attr);
 
         if (IS_ERR(name = getname(u_name)))
@@ -791,7 +761,6 @@ static int do_mq_open(const char __user *u_name, int oflag, umode_t mode,
                 goto out_putname;
 
         ro = mnt_want_write(mnt);       /* we'll drop it in any case */
-        root = mnt->mnt_root;
         inode_lock(d_inode(root));
         path.dentry = lookup_one_len(name->name, root, strlen(name->name));
         if (IS_ERR(path.dentry)) {
@@ -840,9 +809,6 @@ SYSCALL_DEFINE1(mq_unlink, const char __user *, u_name)
         struct ipc_namespace *ipc_ns = current->nsproxy->ipc_ns;
         struct vfsmount *mnt = ipc_ns->mq_mnt;
 
-        if (!mnt)
-                return -ENOENT;
-
         name = getname(u_name);
         if (IS_ERR(name))
                 return PTR_ERR(name);
@@ -1569,26 +1535,28 @@ int mq_init_ns(struct ipc_namespace *ns)
         ns->mq_msgsize_max   = DFLT_MSGSIZEMAX;
         ns->mq_msg_default   = DFLT_MSG;
         ns->mq_msgsize_default  = DFLT_MSGSIZE;
-        ns->mq_mnt = NULL;
 
+        ns->mq_mnt = kern_mount_data(&mqueue_fs_type, ns);
+        if (IS_ERR(ns->mq_mnt)) {
+                int err = PTR_ERR(ns->mq_mnt);
+                ns->mq_mnt = NULL;
+                return err;
+        }
         return 0;
 }
 
 void mq_clear_sbinfo(struct ipc_namespace *ns)
 {
-        if (ns->mq_mnt)
-                ns->mq_mnt->mnt_sb->s_fs_info = NULL;
+        ns->mq_mnt->mnt_sb->s_fs_info = NULL;
 }
 
 void mq_put_mnt(struct ipc_namespace *ns)
 {
-        if (ns->mq_mnt)
-                kern_unmount(ns->mq_mnt);
+        kern_unmount(ns->mq_mnt);
 }
 
 static int __init init_mqueue_fs(void)
 {
-        struct vfsmount *m;
         int error;
 
         mqueue_inode_cachep = kmem_cache_create("mqueue_inode_cache",
@@ -1610,10 +1578,6 @@ static int __init init_mqueue_fs(void)
         if (error)
                 goto out_filesystem;
 
-        m = kern_mount_data(&mqueue_fs_type, &init_ipc_ns);
-        if (IS_ERR(m))
-                goto out_filesystem;
-        init_ipc_ns.mq_mnt = m;
         return 0;
 
 out_filesystem:
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index b1f66480135b..14750e7c5ee4 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -26,8 +26,10 @@ static void bpf_array_free_percpu(struct bpf_array *array)
 {
         int i;
 
-        for (i = 0; i < array->map.max_entries; i++)
+        for (i = 0; i < array->map.max_entries; i++) {
                 free_percpu(array->pptrs[i]);
+                cond_resched();
+        }
 }
 
 static int bpf_array_alloc_percpu(struct bpf_array *array)
@@ -43,6 +45,7 @@ static int bpf_array_alloc_percpu(struct bpf_array *array)
                         return -ENOMEM;
                 }
                 array->pptrs[i] = ptr;
+                cond_resched();
         }
 
         return 0;
@@ -73,11 +76,11 @@ static int array_map_alloc_check(union bpf_attr *attr)
 static struct bpf_map *array_map_alloc(union bpf_attr *attr)
 {
         bool percpu = attr->map_type == BPF_MAP_TYPE_PERCPU_ARRAY;
-        int numa_node = bpf_map_attr_numa_node(attr);
+        int ret, numa_node = bpf_map_attr_numa_node(attr);
         u32 elem_size, index_mask, max_entries;
         bool unpriv = !capable(CAP_SYS_ADMIN);
+        u64 cost, array_size, mask64;
         struct bpf_array *array;
-        u64 array_size, mask64;
 
         elem_size = round_up(attr->value_size, 8);
 
@@ -109,8 +112,19 @@ static struct bpf_map *array_map_alloc(union bpf_attr *attr)
                 array_size += (u64) max_entries * elem_size;
 
         /* make sure there is no u32 overflow later in round_up() */
-        if (array_size >= U32_MAX - PAGE_SIZE)
+        cost = array_size;
+        if (cost >= U32_MAX - PAGE_SIZE)
                 return ERR_PTR(-ENOMEM);
+        if (percpu) {
+                cost += (u64)attr->max_entries * elem_size * num_possible_cpus();
+                if (cost >= U32_MAX - PAGE_SIZE)
+                        return ERR_PTR(-ENOMEM);
+        }
+        cost = round_up(cost, PAGE_SIZE) >> PAGE_SHIFT;
+
+        ret = bpf_map_precharge_memlock(cost);
+        if (ret < 0)
+                return ERR_PTR(ret);
 
         /* allocate all map elements and zero-initialize them */
         array = bpf_map_area_alloc(array_size, numa_node);
@@ -121,20 +135,13 @@ static struct bpf_map *array_map_alloc(union bpf_attr *attr)
 
         /* copy mandatory map attributes */
         bpf_map_init_from_attr(&array->map, attr);
+        array->map.pages = cost;
         array->elem_size = elem_size;
 
-        if (!percpu)
-                goto out;
-
-        array_size += (u64) attr->max_entries * elem_size * num_possible_cpus();
-
-        if (array_size >= U32_MAX - PAGE_SIZE ||
-            bpf_array_alloc_percpu(array)) {
+        if (percpu && bpf_array_alloc_percpu(array)) {
                 bpf_map_area_free(array);
                 return ERR_PTR(-ENOMEM);
         }
-out:
-        array->map.pages = round_up(array_size, PAGE_SIZE) >> PAGE_SHIFT;
 
         return &array->map;
 }
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 29ca9208dcfa..d315b393abdd 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -1590,7 +1590,7 @@ int bpf_prog_array_copy_to_user(struct bpf_prog_array __rcu *progs,
          * so always copy 'cnt' prog_ids to the user.
          * In a rare race the user will see zero prog_ids
          */
-        ids = kcalloc(cnt, sizeof(u32), GFP_USER);
+        ids = kcalloc(cnt, sizeof(u32), GFP_USER | __GFP_NOWARN);
         if (!ids)
                 return -ENOMEM;
         rcu_read_lock();
diff --git a/kernel/bpf/cpumap.c b/kernel/bpf/cpumap.c
index fbfdada6caee..a4bb0b34375a 100644
--- a/kernel/bpf/cpumap.c
+++ b/kernel/bpf/cpumap.c
@@ -334,7 +334,7 @@ static int cpu_map_kthread_run(void *data)
 static struct bpf_cpu_map_entry *__cpu_map_entry_alloc(u32 qsize, u32 cpu,
                                                        int map_id)
 {
-        gfp_t gfp = GFP_ATOMIC|__GFP_NOWARN;
+        gfp_t gfp = GFP_KERNEL | __GFP_NOWARN;
         struct bpf_cpu_map_entry *rcpu;
         int numa, err;
 
diff --git a/kernel/bpf/lpm_trie.c b/kernel/bpf/lpm_trie.c
index 7b469d10d0e9..b4b5b81e7251 100644
--- a/kernel/bpf/lpm_trie.c
+++ b/kernel/bpf/lpm_trie.c
@@ -555,7 +555,10 @@ static void trie_free(struct bpf_map *map)
         struct lpm_trie_node __rcu **slot;
         struct lpm_trie_node *node;
 
-        raw_spin_lock(&trie->lock);
+        /* Wait for outstanding programs to complete
+         * update/lookup/delete/get_next_key and free the trie.
+         */
+        synchronize_rcu();
 
         /* Always start at the root and walk down to a node that has no
          * children. Then free that node, nullify its reference in the parent
@@ -566,10 +569,9 @@ static void trie_free(struct bpf_map *map)
                 slot = &trie->root;
 
                 for (;;) {
-                        node = rcu_dereference_protected(*slot,
-                                        lockdep_is_held(&trie->lock));
+                        node = rcu_dereference_protected(*slot, 1);
                         if (!node)
-                                goto unlock;
+                                goto out;
 
                         if (rcu_access_pointer(node->child[0])) {
                                 slot = &node->child[0];
@@ -587,8 +589,8 @@ static void trie_free(struct bpf_map *map)
                 }
         }
 
-unlock:
-        raw_spin_unlock(&trie->lock);
+out:
+        kfree(trie);
 }
 
 static int trie_get_next_key(struct bpf_map *map, void *_key, void *_next_key)
diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c
index 48c33417d13c..a927e89dad6e 100644
--- a/kernel/bpf/sockmap.c
+++ b/kernel/bpf/sockmap.c
@@ -521,8 +521,8 @@ static struct smap_psock *smap_init_psock(struct sock *sock,
 static struct bpf_map *sock_map_alloc(union bpf_attr *attr)
 {
         struct bpf_stab *stab;
-        int err = -EINVAL;
         u64 cost;
+        int err;
 
         if (!capable(CAP_NET_ADMIN))
                 return ERR_PTR(-EPERM);
@@ -547,6 +547,7 @@ static struct bpf_map *sock_map_alloc(union bpf_attr *attr)
 
         /* make sure page count doesn't overflow */
         cost = (u64) stab->map.max_entries * sizeof(struct sock *);
+        err = -EINVAL;
         if (cost >= U32_MAX - PAGE_SIZE)
                 goto free_stab;
 
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index e24aa3241387..43f95d190eea 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -1845,7 +1845,7 @@ SYSCALL_DEFINE3(bpf, int, cmd, union bpf_attr __user *, uattr, unsigned int, siz
         union bpf_attr attr = {};
         int err;
 
-        if (!capable(CAP_SYS_ADMIN) && sysctl_unprivileged_bpf_disabled)
+        if (sysctl_unprivileged_bpf_disabled && !capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
         err = check_uarg_tail_zero(uattr, sizeof(attr), size);
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 5fb69a85d967..c6eff108aa99 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -1356,6 +1356,13 @@ static bool is_ctx_reg(struct bpf_verifier_env *env, int regno)
         return reg->type == PTR_TO_CTX;
 }
 
+static bool is_pkt_reg(struct bpf_verifier_env *env, int regno)
+{
+        const struct bpf_reg_state *reg = cur_regs(env) + regno;
+
+        return type_is_pkt_pointer(reg->type);
+}
+
 static int check_pkt_ptr_alignment(struct bpf_verifier_env *env,
                                    const struct bpf_reg_state *reg,
                                    int off, int size, bool strict)
@@ -1416,10 +1423,10 @@ static int check_generic_ptr_alignment(struct bpf_verifier_env *env,
 }
 
 static int check_ptr_alignment(struct bpf_verifier_env *env,
-                               const struct bpf_reg_state *reg,
-                               int off, int size)
+                               const struct bpf_reg_state *reg, int off,
+                               int size, bool strict_alignment_once)
 {
-        bool strict = env->strict_alignment;
+        bool strict = env->strict_alignment || strict_alignment_once;
         const char *pointer_desc = "";
 
         switch (reg->type) {
@@ -1576,9 +1583,9 @@ static void coerce_reg_to_size(struct bpf_reg_state *reg, int size)
  * if t==write && value_regno==-1, some unknown value is stored into memory
  * if t==read && value_regno==-1, don't care what we read from memory
  */
-static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regno, int off,
-                            int bpf_size, enum bpf_access_type t,
-                            int value_regno)
+static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regno,
+                            int off, int bpf_size, enum bpf_access_type t,
+                            int value_regno, bool strict_alignment_once)
 {
         struct bpf_reg_state *regs = cur_regs(env);
         struct bpf_reg_state *reg = regs + regno;
@@ -1590,7 +1597,7 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
                 return size;
 
         /* alignment checks will add in reg->off themselves */
-        err = check_ptr_alignment(env, reg, off, size);
+        err = check_ptr_alignment(env, reg, off, size, strict_alignment_once);
         if (err)
                 return err;
 
@@ -1735,21 +1742,23 @@ static int check_xadd(struct bpf_verifier_env *env, int insn_idx, struct bpf_ins
                 return -EACCES;
         }
 
-        if (is_ctx_reg(env, insn->dst_reg)) {
-                verbose(env, "BPF_XADD stores into R%d context is not allowed\n",
-                        insn->dst_reg);
+        if (is_ctx_reg(env, insn->dst_reg) ||
+            is_pkt_reg(env, insn->dst_reg)) {
+                verbose(env, "BPF_XADD stores into R%d %s is not allowed\n",
+                        insn->dst_reg, is_ctx_reg(env, insn->dst_reg) ?
+                        "context" : "packet");
                 return -EACCES;
         }
 
         /* check whether atomic_add can read the memory */
         err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
-                               BPF_SIZE(insn->code), BPF_READ, -1);
+                               BPF_SIZE(insn->code), BPF_READ, -1, true);
         if (err)
                 return err;
 
         /* check whether atomic_add can write into the same memory */
         return check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
-                                BPF_SIZE(insn->code), BPF_WRITE, -1);
+                                BPF_SIZE(insn->code), BPF_WRITE, -1, true);
 }
 
 /* when register 'regno' is passed into function that will read 'access_size'
@@ -2388,7 +2397,8 @@ static int check_helper_call(struct bpf_verifier_env *env, int func_id, int insn
          * is inferred from register state.
          */
         for (i = 0; i < meta.access_size; i++) {
-                err = check_mem_access(env, insn_idx, meta.regno, i, BPF_B, BPF_WRITE, -1);
+                err = check_mem_access(env, insn_idx, meta.regno, i, BPF_B,
+                                       BPF_WRITE, -1, false);
                 if (err)
                         return err;
         }
@@ -4632,7 +4642,7 @@ static int do_check(struct bpf_verifier_env *env)
                          */
                         err = check_mem_access(env, insn_idx, insn->src_reg, insn->off,
                                                BPF_SIZE(insn->code), BPF_READ,
-                                               insn->dst_reg);
+                                               insn->dst_reg, false);
                         if (err)
                                 return err;
 
@@ -4684,7 +4694,7 @@ static int do_check(struct bpf_verifier_env *env)
                         /* check that memory (dst_reg + off) is writeable */
                         err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
                                                BPF_SIZE(insn->code), BPF_WRITE,
-                                               insn->src_reg);
+                                               insn->src_reg, false);
                         if (err)
                                 return err;
 
@@ -4719,7 +4729,7 @@ static int do_check(struct bpf_verifier_env *env)
                         /* check that memory (dst_reg + off) is writeable */
                         err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
                                                BPF_SIZE(insn->code), BPF_WRITE,
-                                               -1);
+                                               -1, false);
                         if (err)
                                 return err;
 
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 8cda3bc3ae22..4bfb2908ec15 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -3183,6 +3183,16 @@ static int cgroup_enable_threaded(struct cgroup *cgrp)
         if (cgroup_is_threaded(cgrp))
                 return 0;
 
+        /*
+         * If @cgroup is populated or has domain controllers enabled, it
+         * can't be switched.  While the below cgroup_can_be_thread_root()
+         * test can catch the same conditions, that's only when @parent is
+         * not mixable, so let's check it explicitly.
+         */
+        if (cgroup_is_populated(cgrp) ||
+            cgrp->subtree_control & ~cgrp_dfl_threaded_ss_mask)
+                return -EOPNOTSUPP;
+
         /* we're joining the parent's domain, ensure its validity */
         if (!cgroup_is_valid_domain(dom_cgrp) ||
             !cgroup_can_be_thread_root(dom_cgrp))
diff --git a/kernel/compat.c b/kernel/compat.c
index 3247fe761f60..3f5fa8902e7d 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -488,25 +488,6 @@ get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat)
 }
 EXPORT_SYMBOL_GPL(get_compat_sigset);
 
-int
-put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,
-                  unsigned int size)
-{
-        /* size <= sizeof(compat_sigset_t) <= sizeof(sigset_t) */
-#ifdef __BIG_ENDIAN
-        compat_sigset_t v;
-        switch (_NSIG_WORDS) {
-        case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
-        case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
-        case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];
-        case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];
-        }
-        return copy_to_user(compat, &v, size) ? -EFAULT : 0;
-#else
-        return copy_to_user(compat, set, size) ? -EFAULT : 0;
-#endif
-}
-
 #ifdef CONFIG_NUMA
 COMPAT_SYSCALL_DEFINE6(move_pages, pid_t, pid, compat_ulong_t, nr_pages,
                        compat_uptr_t __user *, pages32,
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 96db9ae5d5af..709a55b9ad97 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -724,9 +724,15 @@ static inline void __update_cgrp_time(struct perf_cgroup *cgrp)
 
 static inline void update_cgrp_time_from_cpuctx(struct perf_cpu_context *cpuctx)
 {
-        struct perf_cgroup *cgrp_out = cpuctx->cgrp;
-        if (cgrp_out)
-                __update_cgrp_time(cgrp_out);
+        struct perf_cgroup *cgrp = cpuctx->cgrp;
+        struct cgroup_subsys_state *css;
+
+        if (cgrp) {
+                for (css = &cgrp->css; css; css = css->parent) {
+                        cgrp = container_of(css, struct perf_cgroup, css);
+                        __update_cgrp_time(cgrp);
+                }
+        }
 }
 
 static inline void update_cgrp_time_from_event(struct perf_event *event)
@@ -754,6 +760,7 @@ perf_cgroup_set_timestamp(struct task_struct *task,
 {
         struct perf_cgroup *cgrp;
         struct perf_cgroup_info *info;
+        struct cgroup_subsys_state *css;
 
         /*
          * ctx->lock held by caller
@@ -764,8 +771,12 @@ perf_cgroup_set_timestamp(struct task_struct *task,
                 return;
 
         cgrp = perf_cgroup_from_task(task, ctx);
-        info = this_cpu_ptr(cgrp->info);
-        info->timestamp = ctx->timestamp;
+
+        for (css = &cgrp->css; css; css = css->parent) {
+                cgrp = container_of(css, struct perf_cgroup, css);
+                info = this_cpu_ptr(cgrp->info);
+                info->timestamp = ctx->timestamp;
+        }
 }
 
 static DEFINE_PER_CPU(struct list_head, cgrp_cpuctx_list);
@@ -2246,7 +2257,7 @@ static void ctx_resched(struct perf_cpu_context *cpuctx,
                         struct perf_event_context *task_ctx,
                         enum event_type_t event_type)
 {
-        enum event_type_t ctx_event_type = event_type & EVENT_ALL;
+        enum event_type_t ctx_event_type;
         bool cpu_event = !!(event_type & EVENT_CPU);
 
         /*
@@ -2256,6 +2267,8 @@ static void ctx_resched(struct perf_cpu_context *cpuctx,
         if (event_type & EVENT_PINNED)
                 event_type |= EVENT_FLEXIBLE;
 
+        ctx_event_type = event_type & EVENT_ALL;
+
         perf_pmu_disable(cpuctx->ctx.pmu);
         if (task_ctx)
                 task_ctx_sched_out(cpuctx, task_ctx, event_type);
diff --git a/kernel/extable.c b/kernel/extable.c
index a17fdb63dc3e..6a5b61ebc66c 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -64,7 +64,7 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr)
         return e;
 }
 
-static inline int init_kernel_text(unsigned long addr)
+int init_kernel_text(unsigned long addr)
 {
         if (addr >= (unsigned long)_sinittext &&
             addr < (unsigned long)_einittext)
diff --git a/kernel/fail_function.c b/kernel/fail_function.c
index 21b0122cb39c..1d5632d8bbcc 100644
--- a/kernel/fail_function.c
+++ b/kernel/fail_function.c
@@ -14,6 +14,15 @@
 
 static int fei_kprobe_handler(struct kprobe *kp, struct pt_regs *regs);
 
+static void fei_post_handler(struct kprobe *kp, struct pt_regs *regs,
+                             unsigned long flags)
+{
+        /*
+         * A dummy post handler is required to prohibit optimizing, because
+         * jump optimization does not support execution path overriding.
+         */
+}
+
 struct fei_attr {
         struct list_head list;
         struct kprobe kp;
@@ -56,6 +65,7 @@ static struct fei_attr *fei_attr_new(const char *sym, unsigned long addr)
                         return NULL;
                 }
                 attr->kp.pre_handler = fei_kprobe_handler;
+                attr->kp.post_handler = fei_post_handler;
                 attr->retval = adjust_error_retval(addr, 0);
                 INIT_LIST_HEAD(&attr->list);
         }
diff --git a/kernel/fork.c b/kernel/fork.c
index be8aa5b98666..e5d9d405ae4e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -592,7 +592,7 @@ static void check_mm(struct mm_struct *mm)
  * is dropped: either by a lazy thread or by
  * mmput. Free the page directory and the mm.
  */
-static void __mmdrop(struct mm_struct *mm)
+void __mmdrop(struct mm_struct *mm)
 {
         BUG_ON(mm == &init_mm);
         mm_free_pgd(mm);
@@ -603,18 +603,7 @@ static void __mmdrop(struct mm_struct *mm)
         put_user_ns(mm->user_ns);
         free_mm(mm);
 }
-
-void mmdrop(struct mm_struct *mm)
-{
-        /*
-         * The implicit full barrier implied by atomic_dec_and_test() is
-         * required by the membarrier system call before returning to
-         * user-space, after storing to rq->curr.
-         */
-        if (unlikely(atomic_dec_and_test(&mm->mm_count)))
-                __mmdrop(mm);
-}
-EXPORT_SYMBOL_GPL(mmdrop);
+EXPORT_SYMBOL_GPL(__mmdrop);
 
 static void mmdrop_async_fn(struct work_struct *work)
 {
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index e6a9c36470ee..82b8b18ee1eb 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1726,25 +1726,14 @@ static int irq_domain_debug_show(struct seq_file *m, void *p)
         irq_domain_debug_show_one(m, d, 0);
         return 0;
 }
-
-static int irq_domain_debug_open(struct inode *inode, struct file *file)
-{
-        return single_open(file, irq_domain_debug_show, inode->i_private);
-}
-
-static const struct file_operations dfs_domain_ops = {
-        .open           = irq_domain_debug_open,
-        .read           = seq_read,
-        .llseek         = seq_lseek,
-        .release        = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(irq_domain_debug);
 
 static void debugfs_add_domain_dir(struct irq_domain *d)
 {
         if (!d->name || !domain_dir || d->debugfs_file)
                 return;
         d->debugfs_file = debugfs_create_file(d->name, 0444, domain_dir, d,
-                                              &dfs_domain_ops);
+                                              &irq_domain_debug_fops);
 }
 
 static void debugfs_remove_domain_dir(struct irq_domain *d)
@@ -1760,7 +1749,8 @@ void __init irq_domain_debugfs_init(struct dentry *root)
         if (!domain_dir)
                 return;
 
-        debugfs_create_file("default", 0444, domain_dir, NULL, &dfs_domain_ops);
+        debugfs_create_file("default", 0444, domain_dir, NULL,
+                            &irq_domain_debug_fops);
         mutex_lock(&irq_domain_mutex);
         list_for_each_entry(d, &irq_domain_list, link)
                 debugfs_add_domain_dir(d);
diff --git a/kernel/irq/matrix.c b/kernel/irq/matrix.c
index 5187dfe809ac..4c5770407031 100644
--- a/kernel/irq/matrix.c
+++ b/kernel/irq/matrix.c
@@ -16,6 +16,7 @@ struct cpumap {
         unsigned int            available;
         unsigned int            allocated;
         unsigned int            managed;
+        bool                    initialized;
         bool                    online;
         unsigned long           alloc_map[IRQ_MATRIX_SIZE];
         unsigned long           managed_map[IRQ_MATRIX_SIZE];
@@ -81,9 +82,11 @@ void irq_matrix_online(struct irq_matrix *m)
 
         BUG_ON(cm->online);
 
-        bitmap_zero(cm->alloc_map, m->matrix_bits);
-        cm->available = m->alloc_size - (cm->managed + m->systembits_inalloc);
-        cm->allocated = 0;
+        if (!cm->initialized) {
+                cm->available = m->alloc_size;
+                cm->available -= cm->managed + m->systembits_inalloc;
+                cm->initialized = true;
+        }
         m->global_available += cm->available;
         cm->online = true;
         m->online_maps++;
@@ -370,14 +373,16 @@ void irq_matrix_free(struct irq_matrix *m, unsigned int cpu,
         if (WARN_ON_ONCE(bit < m->alloc_start || bit >= m->alloc_end))
                 return;
 
-        if (cm->online) {
-                clear_bit(bit, cm->alloc_map);
-                cm->allocated--;
+        clear_bit(bit, cm->alloc_map);
+        cm->allocated--;
+
+        if (cm->online)
                 m->total_allocated--;
-                if (!managed) {
-                        cm->available++;
+
+        if (!managed) {
+                cm->available++;
+                if (cm->online)
                         m->global_available++;
-                }
         }
         trace_irq_matrix_free(bit, cpu, m, cm);
 }
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index b4517095db6a..01ebdf1f9f40 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -16,6 +16,7 @@
 #include <linux/jump_label_ratelimit.h>
 #include <linux/bug.h>
 #include <linux/cpu.h>
+#include <asm/sections.h>
 
 #ifdef HAVE_JUMP_LABEL
 
@@ -366,12 +367,16 @@ static void __jump_label_update(struct static_key *key,
 {
         for (; (entry < stop) && (jump_entry_key(entry) == key); entry++) {
                 /*
-                 * entry->code set to 0 invalidates module init text sections
-                 * kernel_text_address() verifies we are not in core kernel
-                 * init code, see jump_label_invalidate_module_init().
+                 * An entry->code of 0 indicates an entry which has been
+                 * disabled because it was in an init text area.
                  */
-                if (entry->code && kernel_text_address(entry->code))
-                        arch_jump_label_transform(entry, jump_label_type(entry));
+                if (entry->code) {
+                        if (kernel_text_address(entry->code))
+                                arch_jump_label_transform(entry, jump_label_type(entry));
+                        else
+                                WARN_ONCE(1, "can't patch jump_label at %pS",
+                                          (void *)(unsigned long)entry->code);
+                }
         }
 }
 
@@ -417,6 +422,19 @@ void __init jump_label_init(void)
         cpus_read_unlock();
 }
 
+/* Disable any jump label entries in __init/__exit code */
+void __init jump_label_invalidate_initmem(void)
+{
+        struct jump_entry *iter_start = __start___jump_table;
+        struct jump_entry *iter_stop = __stop___jump_table;
+        struct jump_entry *iter;
+
+        for (iter = iter_start; iter < iter_stop; iter++) {
+                if (init_section_contains((void *)(unsigned long)iter->code, 1))
+                        iter->code = 0;
+        }
+}
+
 #ifdef CONFIG_MODULES
 
 static enum jump_label_type jump_label_init_type(struct jump_entry *entry)
@@ -633,6 +651,7 @@ static void jump_label_del_module(struct module *mod)
         }
 }
 
+/* Disable any jump label entries in module init code */
 static void jump_label_invalidate_module_init(struct module *mod)
 {
         struct jump_entry *iter_start = mod->jump_entries;
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index da2ccf142358..102160ff5c66 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -978,67 +978,90 @@ static int prepare_kprobe(struct kprobe *p)
 }
 
 /* Caller must lock kprobe_mutex */
-static void arm_kprobe_ftrace(struct kprobe *p)
+static int arm_kprobe_ftrace(struct kprobe *p)
 {
-        int ret;
+        int ret = 0;
 
         ret = ftrace_set_filter_ip(&kprobe_ftrace_ops,
                                    (unsigned long)p->addr, 0, 0);
-        WARN(ret < 0, "Failed to arm kprobe-ftrace at %p (%d)\n", p->addr, ret);
-        kprobe_ftrace_enabled++;
-        if (kprobe_ftrace_enabled == 1) {
+        if (ret) {
+                pr_debug("Failed to arm kprobe-ftrace at %p (%d)\n", p->addr, ret);
+                return ret;
+        }
+
+        if (kprobe_ftrace_enabled == 0) {
                 ret = register_ftrace_function(&kprobe_ftrace_ops);
-                WARN(ret < 0, "Failed to init kprobe-ftrace (%d)\n", ret);
+                if (ret) {
+                        pr_debug("Failed to init kprobe-ftrace (%d)\n", ret);
+                        goto err_ftrace;
+                }
         }
+
+        kprobe_ftrace_enabled++;
+        return ret;
+
+err_ftrace:
+        /*
+         * Note: Since kprobe_ftrace_ops has IPMODIFY set, and ftrace requires a
+         * non-empty filter_hash for IPMODIFY ops, we're safe from an accidental
+         * empty filter_hash which would undesirably trace all functions.
+         */
+        ftrace_set_filter_ip(&kprobe_ftrace_ops, (unsigned long)p->addr, 1, 0);
+        return ret;
 }
 
 /* Caller must lock kprobe_mutex */
-static void disarm_kprobe_ftrace(struct kprobe *p)
+static int disarm_kprobe_ftrace(struct kprobe *p)
 {
-        int ret;
+        int ret = 0;
 
-        kprobe_ftrace_enabled--;
-        if (kprobe_ftrace_enabled == 0) {
+        if (kprobe_ftrace_enabled == 1) {
                 ret = unregister_ftrace_function(&kprobe_ftrace_ops);
-                WARN(ret < 0, "Failed to init kprobe-ftrace (%d)\n", ret);
+                if (WARN(ret < 0, "Failed to unregister kprobe-ftrace (%d)\n", ret))
+                        return ret;
         }
+
+        kprobe_ftrace_enabled--;
+
         ret = ftrace_set_filter_ip(&kprobe_ftrace_ops,
                            (unsigned long)p->addr, 1, 0);
         WARN(ret < 0, "Failed to disarm kprobe-ftrace at %p (%d)\n", p->addr, ret);
+        return ret;
 }
 #else   /* !CONFIG_KPROBES_ON_FTRACE */
 #define prepare_kprobe(p)       arch_prepare_kprobe(p)
-#define arm_kprobe_ftrace(p)    do {} while (0)
-#define disarm_kprobe_ftrace(p) do {} while (0)
+#define arm_kprobe_ftrace(p)    (-ENODEV)
+#define disarm_kprobe_ftrace(p) (-ENODEV)
 #endif
 
 /* Arm a kprobe with text_mutex */
-static void arm_kprobe(struct kprobe *kp)
+static int arm_kprobe(struct kprobe *kp)
 {
-        if (unlikely(kprobe_ftrace(kp))) {
-                arm_kprobe_ftrace(kp);
-                return;
-        }
+        if (unlikely(kprobe_ftrace(kp)))
+                return arm_kprobe_ftrace(kp);
+
         cpus_read_lock();
         mutex_lock(&text_mutex);
         __arm_kprobe(kp);
         mutex_unlock(&text_mutex);
         cpus_read_unlock();
+
+        return 0;
 }
 
 /* Disarm a kprobe with text_mutex */
-static void disarm_kprobe(struct kprobe *kp, bool reopt)
+static int disarm_kprobe(struct kprobe *kp, bool reopt)
 {
-        if (unlikely(kprobe_ftrace(kp))) {
-                disarm_kprobe_ftrace(kp);
-                return;
-        }
+        if (unlikely(kprobe_ftrace(kp)))
+                return disarm_kprobe_ftrace(kp);
 
         cpus_read_lock();
         mutex_lock(&text_mutex);
         __disarm_kprobe(kp, reopt);
         mutex_unlock(&text_mutex);
         cpus_read_unlock();
+
+        return 0;
 }
 
 /*
@@ -1362,9 +1385,15 @@ out:
 
         if (ret == 0 && kprobe_disabled(ap) && !kprobe_disabled(p)) {
                 ap->flags &= ~KPROBE_FLAG_DISABLED;
-                if (!kprobes_all_disarmed)
+                if (!kprobes_all_disarmed) {
                         /* Arm the breakpoint again. */
-                        arm_kprobe(ap);
+                        ret = arm_kprobe(ap);
+                        if (ret) {
+                                ap->flags |= KPROBE_FLAG_DISABLED;
+                                list_del_rcu(&p->list);
+                                synchronize_sched();
+                        }
+                }
         }
         return ret;
 }
@@ -1573,8 +1602,14 @@ int register_kprobe(struct kprobe *p)
         hlist_add_head_rcu(&p->hlist,
                        &kprobe_table[hash_ptr(p->addr, KPROBE_HASH_BITS)]);
 
-        if (!kprobes_all_disarmed && !kprobe_disabled(p))
-                arm_kprobe(p);
+        if (!kprobes_all_disarmed && !kprobe_disabled(p)) {
+                ret = arm_kprobe(p);
+                if (ret) {
+                        hlist_del_rcu(&p->hlist);
+                        synchronize_sched();
+                        goto out;
+                }
+        }
 
         /* Try to optimize kprobe */
         try_to_optimize_kprobe(p);
@@ -1608,11 +1643,12 @@ static int aggr_kprobe_disabled(struct kprobe *ap)
 static struct kprobe *__disable_kprobe(struct kprobe *p)
 {
         struct kprobe *orig_p;
+        int ret;
 
         /* Get an original kprobe for return */
         orig_p = __get_valid_kprobe(p);
         if (unlikely(orig_p == NULL))
-                return NULL;
+                return ERR_PTR(-EINVAL);
 
         if (!kprobe_disabled(p)) {
                 /* Disable probe if it is a child probe */
@@ -1626,8 +1662,13 @@ static struct kprobe *__disable_kprobe(struct kprobe *p)
                          * should have already been disarmed, so
                          * skip unneed disarming process.
                          */
-                        if (!kprobes_all_disarmed)
-                                disarm_kprobe(orig_p, true);
+                        if (!kprobes_all_disarmed) {
+                                ret = disarm_kprobe(orig_p, true);
+                                if (ret) {
+                                        p->flags &= ~KPROBE_FLAG_DISABLED;
+                                        return ERR_PTR(ret);
+                                }
+                        }
                         orig_p->flags |= KPROBE_FLAG_DISABLED;
                 }
         }
@@ -1644,8 +1685,8 @@ static int __unregister_kprobe_top(struct kprobe *p)
 
         /* Disable kprobe. This will disarm it if needed. */
         ap = __disable_kprobe(p);
-        if (ap == NULL)
-                return -EINVAL;
+        if (IS_ERR(ap))
+                return PTR_ERR(ap);
 
         if (ap == p)
                 /*
@@ -2078,12 +2119,14 @@ static void kill_kprobe(struct kprobe *p)
 int disable_kprobe(struct kprobe *kp)
 {
         int ret = 0;
+        struct kprobe *p;
 
         mutex_lock(&kprobe_mutex);
 
         /* Disable this kprobe */
-        if (__disable_kprobe(kp) == NULL)
-                ret = -EINVAL;
+        p = __disable_kprobe(kp);
+        if (IS_ERR(p))
+                ret = PTR_ERR(p);
 
         mutex_unlock(&kprobe_mutex);
         return ret;
@@ -2116,7 +2159,9 @@ int enable_kprobe(struct kprobe *kp)
 
         if (!kprobes_all_disarmed && kprobe_disabled(p)) {
                 p->flags &= ~KPROBE_FLAG_DISABLED;
-                arm_kprobe(p);
+                ret = arm_kprobe(p);
+                if (ret)
+                        p->flags |= KPROBE_FLAG_DISABLED;
         }
 out:
         mutex_unlock(&kprobe_mutex);
@@ -2407,11 +2452,12 @@ static const struct file_operations debugfs_kprobe_blacklist_ops = {
         .release        = seq_release,
 };
 
-static void arm_all_kprobes(void)
+static int arm_all_kprobes(void)
 {
         struct hlist_head *head;
         struct kprobe *p;
-        unsigned int i;
+        unsigned int i, total = 0, errors = 0;
+        int err, ret = 0;
 
         mutex_lock(&kprobe_mutex);
 
@@ -2428,46 +2474,74 @@ static void arm_all_kprobes(void)
         /* Arming kprobes doesn't optimize kprobe itself */
         for (i = 0; i < KPROBE_TABLE_SIZE; i++) {
                 head = &kprobe_table[i];
-                hlist_for_each_entry_rcu(p, head, hlist)
-                        if (!kprobe_disabled(p))
-                                arm_kprobe(p);
+                /* Arm all kprobes on a best-effort basis */
+                hlist_for_each_entry_rcu(p, head, hlist) {
+                        if (!kprobe_disabled(p)) {
+                                err = arm_kprobe(p);
+                                if (err)  {
+                                        errors++;
+                                        ret = err;
+                                }
+                                total++;
+                        }
+                }
         }
 
-        printk(KERN_INFO "Kprobes globally enabled\n");
+        if (errors)
+                pr_warn("Kprobes globally enabled, but failed to arm %d out of %d probes\n",
+                        errors, total);
+        else
+                pr_info("Kprobes globally enabled\n");
 
 already_enabled:
         mutex_unlock(&kprobe_mutex);
-        return;
+        return ret;
 }
 
-static void disarm_all_kprobes(void)
+static int disarm_all_kprobes(void)
 {
         struct hlist_head *head;
         struct kprobe *p;
-        unsigned int i;
+        unsigned int i, total = 0, errors = 0;
+        int err, ret = 0;
 
         mutex_lock(&kprobe_mutex);
 
         /* If kprobes are already disarmed, just return */
         if (kprobes_all_disarmed) {
                 mutex_unlock(&kprobe_mutex);
-                return;
+                return 0;
         }
 
         kprobes_all_disarmed = true;
-        printk(KERN_INFO "Kprobes globally disabled\n");
 
         for (i = 0; i < KPROBE_TABLE_SIZE; i++) {
                 head = &kprobe_table[i];
+                /* Disarm all kprobes on a best-effort basis */
                 hlist_for_each_entry_rcu(p, head, hlist) {
-                        if (!arch_trampoline_kprobe(p) && !kprobe_disabled(p))
-                                disarm_kprobe(p, false);
+                        if (!arch_trampoline_kprobe(p) && !kprobe_disabled(p)) {
+                                err = disarm_kprobe(p, false);
+                                if (err) {
+                                        errors++;
+                                        ret = err;
+                                }
+                                total++;
+                        }
                 }
         }
+
+        if (errors)
+                pr_warn("Kprobes globally disabled, but failed to disarm %d out of %d probes\n",
+                        errors, total);
+        else
+                pr_info("Kprobes globally disabled\n");
+
         mutex_unlock(&kprobe_mutex);
 
         /* Wait for disarming all kprobes by optimizer */
         wait_for_kprobe_optimizer();
+
+        return ret;
 }
 
 /*
@@ -2494,6 +2568,7 @@ static ssize_t write_enabled_file_bool(struct file *file,
 {
         char buf[32];
         size_t buf_size;
+        int ret = 0;
 
         buf_size = min(count, (sizeof(buf)-1));
         if (copy_from_user(buf, user_buf, buf_size))
@@ -2504,17 +2579,20 @@ static ssize_t write_enabled_file_bool(struct file *file,
         case 'y':
         case 'Y':
         case '1':
-                arm_all_kprobes();
+                ret = arm_all_kprobes();
                 break;
         case 'n':
         case 'N':
         case '0':
-                disarm_all_kprobes();
+                ret = disarm_all_kprobes();
                 break;
         default:
                 return -EINVAL;
         }
 
+        if (ret)
+                return ret;
+
         return count;
 }
 
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index 858a07590e39..2048359f33d2 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -1082,15 +1082,16 @@ static noinline int __sched
 __mutex_lock_interruptible_slowpath(struct mutex *lock);
 
 /**
- * mutex_lock_interruptible - acquire the mutex, interruptible
- * @lock: the mutex to be acquired
+ * mutex_lock_interruptible() - Acquire the mutex, interruptible by signals.
+ * @lock: The mutex to be acquired.
  *
- * Lock the mutex like mutex_lock(), and return 0 if the mutex has
- * been acquired or sleep until the mutex becomes available. If a
- * signal arrives while waiting for the lock then this function
- * returns -EINTR.
+ * Lock the mutex like mutex_lock().  If a signal is delivered while the
+ * process is sleeping, this function will return without acquiring the
+ * mutex.
  *
- * This function is similar to (but not equivalent to) down_interruptible().
+ * Context: Process context.
+ * Return: 0 if the lock was successfully acquired or %-EINTR if a
+ * signal arrived.
  */
 int __sched mutex_lock_interruptible(struct mutex *lock)
 {
@@ -1104,6 +1105,18 @@ int __sched mutex_lock_interruptible(struct mutex *lock)
 
 EXPORT_SYMBOL(mutex_lock_interruptible);
 
+/**
+ * mutex_lock_killable() - Acquire the mutex, interruptible by fatal signals.
+ * @lock: The mutex to be acquired.
+ *
+ * Lock the mutex like mutex_lock().  If a signal which will be fatal to
+ * the current process is delivered while the process is sleeping, this
+ * function will return without acquiring the mutex.
+ *
+ * Context: Process context.
+ * Return: 0 if the lock was successfully acquired or %-EINTR if a
+ * fatal signal arrived.
+ */
 int __sched mutex_lock_killable(struct mutex *lock)
 {
         might_sleep();
@@ -1115,6 +1128,16 @@ int __sched mutex_lock_killable(struct mutex *lock)
 }
 EXPORT_SYMBOL(mutex_lock_killable);
 
+/**
+ * mutex_lock_io() - Acquire the mutex and mark the process as waiting for I/O
+ * @lock: The mutex to be acquired.
+ *
+ * Lock the mutex like mutex_lock().  While the task is waiting for this
+ * mutex, it will be accounted as being in the IO wait state by the
+ * scheduler.
+ *
+ * Context: Process context.
+ */
 void __sched mutex_lock_io(struct mutex *lock)
 {
         int token;
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 38ece035039e..d880296245c5 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -379,6 +379,14 @@ queue:
         tail = encode_tail(smp_processor_id(), idx);
 
         node += idx;
+
+        /*
+         * Ensure that we increment the head node->count before initialising
+         * the actual node. If the compiler is kind enough to reorder these
+         * stores, then an IRQ could overwrite our assignments.
+         */
+        barrier();
+
         node->locked = 0;
         node->next = NULL;
         pv_init_node(node);
@@ -408,14 +416,15 @@ queue:
          */
         if (old & _Q_TAIL_MASK) {
                 prev = decode_tail(old);
+
                 /*
-                 * The above xchg_tail() is also a load of @lock which
-                 * generates, through decode_tail(), a pointer.  The address
-                 * dependency matches the RELEASE of xchg_tail() such that
-                 * the subsequent access to @prev happens after.
+                 * We must ensure that the stores to @node are observed before
+                 * the write to prev->next. The address dependency from
+                 * xchg_tail is not sufficient to ensure this because the read
+                 * component of xchg_tail is unordered with respect to the
+                 * initialisation of @node.
                  */
-
-                WRITE_ONCE(prev->next, node);
+                smp_store_release(&prev->next, node);
 
                 pv_wait_node(node, prev);
                 arch_mcs_spin_lock_contended(&node->locked);
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 65cc0cb984e6..940633c63254 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1616,11 +1616,12 @@ bool __sched __rt_mutex_futex_unlock(struct rt_mutex *lock,
 void __sched rt_mutex_futex_unlock(struct rt_mutex *lock)
 {
         DEFINE_WAKE_Q(wake_q);
+        unsigned long flags;
         bool postunlock;
 
-        raw_spin_lock_irq(&lock->wait_lock);
+        raw_spin_lock_irqsave(&lock->wait_lock, flags);
         postunlock = __rt_mutex_futex_unlock(lock, &wake_q);
-        raw_spin_unlock_irq(&lock->wait_lock);
+        raw_spin_unlock_irqrestore(&lock->wait_lock, flags);
 
         if (postunlock)
                 rt_mutex_postunlock(&wake_q);
diff --git a/kernel/memremap.c b/kernel/memremap.c
index 4849be5f9b3c..895e6b76b25e 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -275,8 +275,15 @@ static unsigned long pfn_end(struct dev_pagemap *pgmap)
         return (res->start + resource_size(res)) >> PAGE_SHIFT;
 }
 
+static unsigned long pfn_next(unsigned long pfn)
+{
+        if (pfn % 1024 == 0)
+                cond_resched();
+        return pfn + 1;
+}
+
 #define for_each_device_pfn(pfn, map) \
-        for (pfn = pfn_first(map); pfn < pfn_end(map); pfn++)
+        for (pfn = pfn_first(map); pfn < pfn_end(map); pfn = pfn_next(pfn))
 
 static void devm_memremap_pages_release(void *data)
 {
@@ -337,10 +344,10 @@ void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap)
         resource_size_t align_start, align_size, align_end;
         struct vmem_altmap *altmap = pgmap->altmap_valid ?
                         &pgmap->altmap : NULL;
+        struct resource *res = &pgmap->res;
         unsigned long pfn, pgoff, order;
         pgprot_t pgprot = PAGE_KERNEL;
-        int error, nid, is_ram, i = 0;
-        struct resource *res = &pgmap->res;
+        int error, nid, is_ram;
 
         align_start = res->start & ~(SECTION_SIZE - 1);
         align_size = ALIGN(res->start + resource_size(res), SECTION_SIZE)
@@ -409,8 +416,6 @@ void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap)
                 list_del(&page->lru);
                 page->pgmap = pgmap;
                 percpu_ref_get(pgmap->ref);
-                if (!(++i % 1024))
-                        cond_resched();
         }
 
         devm_add_action(dev, devm_memremap_pages_release, pgmap);
@@ -422,7 +427,6 @@ void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap)
  err_pfn_remap:
  err_radix:
         pgmap_radix_release(res, pgoff);
-        devres_free(pgmap);
         return ERR_PTR(error);
 }
 EXPORT_SYMBOL(devm_memremap_pages);
diff --git a/kernel/module.c b/kernel/module.c
index ad2d420024f6..e42764acedb4 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -4228,7 +4228,7 @@ static int modules_open(struct inode *inode, struct file *file)
                 m->private = kallsyms_show_value() ? NULL : (void *)8ul;
         }
 
-        return 0;
+        return err;
 }
 
 static const struct file_operations proc_modules_operations = {
diff --git a/kernel/panic.c b/kernel/panic.c
index 2cfef408fec9..4b794f1d8561 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -640,7 +640,7 @@ device_initcall(register_warn_debugfs);
  */
 __visible void __stack_chk_fail(void)
 {
-        panic("stack-protector: Kernel stack is corrupted in: %p\n",
+        panic("stack-protector: Kernel stack is corrupted in: %pB\n",
                 __builtin_return_address(0));
 }
 EXPORT_SYMBOL(__stack_chk_fail);
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index fc1123583fa6..f274fbef821d 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2397,7 +2397,7 @@ skip:
 
                 if (console_lock_spinning_disable_and_check()) {
                         printk_safe_exit_irqrestore(flags);
-                        return;
+                        goto out;
                 }
 
                 printk_safe_exit_irqrestore(flags);
@@ -2430,6 +2430,7 @@ skip:
         if (retry && console_trylock())
                 goto again;
 
+out:
         if (wake_klogd)
                 wake_up_klogd();
 }
diff --git a/kernel/relay.c b/kernel/relay.c
index c3029402f15c..c955b10c973c 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -163,7 +163,7 @@ static struct rchan_buf *relay_create_buf(struct rchan *chan)
 {
         struct rchan_buf *buf;
 
-        if (chan->n_subbufs > UINT_MAX / sizeof(size_t *))
+        if (chan->n_subbufs > KMALLOC_MAX_SIZE / sizeof(size_t *))
                 return NULL;
 
         buf = kzalloc(sizeof(struct rchan_buf), GFP_KERNEL);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index bf724c1952ea..c94895bc5a2c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2601,19 +2601,31 @@ static inline void finish_task(struct task_struct *prev)
 #endif
 }
 
-static inline void finish_lock_switch(struct rq *rq)
+static inline void
+prepare_lock_switch(struct rq *rq, struct task_struct *next, struct rq_flags *rf)
 {
+        /*
+         * Since the runqueue lock will be released by the next
+         * task (which is an invalid locking op but in the case
+         * of the scheduler it's an obvious special-case), so we
+         * do an early lockdep release here:
+         */
+        rq_unpin_lock(rq, rf);
+        spin_release(&rq->lock.dep_map, 1, _THIS_IP_);
 #ifdef CONFIG_DEBUG_SPINLOCK
         /* this is a valid case when another task releases the spinlock */
-        rq->lock.owner = current;
+        rq->lock.owner = next;
 #endif
+}
+
+static inline void finish_lock_switch(struct rq *rq)
+{
         /*
          * If we are tracking spinlock dependencies then we have to
          * fix up the runqueue lock - which gets 'carried over' from
          * prev into current:
          */
         spin_acquire(&rq->lock.dep_map, 0, 0, _THIS_IP_);
-
         raw_spin_unlock_irq(&rq->lock);
 }
 
@@ -2844,14 +2856,7 @@ context_switch(struct rq *rq, struct task_struct *prev,
 
         rq->clock_update_flags &= ~(RQCF_ACT_SKIP|RQCF_REQ_SKIP);
 
-        /*
-         * Since the runqueue lock will be released by the next
-         * task (which is an invalid locking op but in the case
-         * of the scheduler it's an obvious special-case), so we
-         * do an early lockdep release here:
-         */
-        rq_unpin_lock(rq, rf);
-        spin_release(&rq->lock.dep_map, 1, _THIS_IP_);
+        prepare_lock_switch(rq, next, rf);
 
         /* Here we just switch the register state and the stack. */
         switch_to(prev, next, prev);
@@ -6678,13 +6683,18 @@ static int tg_cfs_schedulable_down(struct task_group *tg, void *data)
                 parent_quota = parent_b->hierarchical_quota;
 
                 /*
-                 * Ensure max(child_quota) <= parent_quota, inherit when no
+                 * Ensure max(child_quota) <= parent_quota.  On cgroup2,
+                 * always take the min.  On cgroup1, only inherit when no
                  * limit is set:
                  */
-                if (quota == RUNTIME_INF)
-                        quota = parent_quota;
-                else if (parent_quota != RUNTIME_INF && quota > parent_quota)
-                        return -EINVAL;
+                if (cgroup_subsys_on_dfl(cpu_cgrp_subsys)) {
+                        quota = min(quota, parent_quota);
+                } else {
+                        if (quota == RUNTIME_INF)
+                                quota = parent_quota;
+                        else if (parent_quota != RUNTIME_INF && quota > parent_quota)
+                                return -EINVAL;
+                }
         }
         cfs_b->hierarchical_quota = quota;
 
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index dd062a1c8cf0..7936f548e071 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -19,8 +19,6 @@
 
 #include "sched.h"
 
-#define SUGOV_KTHREAD_PRIORITY  50
-
 struct sugov_tunables {
         struct gov_attr_set attr_set;
         unsigned int rate_limit_us;
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 9bb0e0c412ec..9df09782025c 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1153,6 +1153,7 @@ static void update_curr_dl(struct rq *rq)
         struct sched_dl_entity *dl_se = &curr->dl;
         u64 delta_exec, scaled_delta_exec;
         int cpu = cpu_of(rq);
+        u64 now;
 
         if (!dl_task(curr) || !on_dl_rq(dl_se))
                 return;
@@ -1165,7 +1166,8 @@ static void update_curr_dl(struct rq *rq)
          * natural solution, but the full ramifications of this
          * approach need further study.
          */
-        delta_exec = rq_clock_task(rq) - curr->se.exec_start;
+        now = rq_clock_task(rq);
+        delta_exec = now - curr->se.exec_start;
         if (unlikely((s64)delta_exec <= 0)) {
                 if (unlikely(dl_se->dl_yielded))
                         goto throttle;
@@ -1178,7 +1180,7 @@ static void update_curr_dl(struct rq *rq)
         curr->se.sum_exec_runtime += delta_exec;
         account_group_exec_runtime(curr, delta_exec);
 
-        curr->se.exec_start = rq_clock_task(rq);
+        curr->se.exec_start = now;
         cgroup_account_cputime(curr, delta_exec);
 
         sched_rt_avg_update(rq, delta_exec);
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 1ca0130ed4f9..72c401b3b15c 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -32,7 +32,7 @@ static DEFINE_SPINLOCK(sched_debug_lock);
         if (m)                                  \
                 seq_printf(m, x);               \
         else                                    \
-                printk(x);                      \
+                pr_cont(x);                     \
  } while (0)
 
 /*
@@ -501,12 +501,12 @@ static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
 {
         struct task_struct *g, *p;
 
-        SEQ_printf(m,
-        "\nrunnable tasks:\n"
-        " S           task   PID         tree-key  switches  prio"
-        "     wait-time             sum-exec        sum-sleep\n"
-        "-------------------------------------------------------"
-        "----------------------------------------------------\n");
+        SEQ_printf(m, "\n");
+        SEQ_printf(m, "runnable tasks:\n");
+        SEQ_printf(m, " S           task   PID         tree-key  switches  prio"
+                   "     wait-time             sum-exec        sum-sleep\n");
+        SEQ_printf(m, "-------------------------------------------------------"
+                   "----------------------------------------------------\n");
 
         rcu_read_lock();
         for_each_process_thread(g, p) {
@@ -527,9 +527,11 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
         unsigned long flags;
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
-        SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg));
+        SEQ_printf(m, "\n");
+        SEQ_printf(m, "cfs_rq[%d]:%s\n", cpu, task_group_path(cfs_rq->tg));
 #else
-        SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu);
+        SEQ_printf(m, "\n");
+        SEQ_printf(m, "cfs_rq[%d]:\n", cpu);
 #endif
         SEQ_printf(m, "  .%-30s: %Ld.%06ld\n", "exec_clock",
                         SPLIT_NS(cfs_rq->exec_clock));
@@ -595,9 +597,11 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
 void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq)
 {
 #ifdef CONFIG_RT_GROUP_SCHED
-        SEQ_printf(m, "\nrt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg));
+        SEQ_printf(m, "\n");
+        SEQ_printf(m, "rt_rq[%d]:%s\n", cpu, task_group_path(rt_rq->tg));
 #else
-        SEQ_printf(m, "\nrt_rq[%d]:\n", cpu);
+        SEQ_printf(m, "\n");
+        SEQ_printf(m, "rt_rq[%d]:\n", cpu);
 #endif
 
 #define P(x) \
@@ -624,7 +628,8 @@ void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq)
 {
         struct dl_bw *dl_bw;
 
-        SEQ_printf(m, "\ndl_rq[%d]:\n", cpu);
+        SEQ_printf(m, "\n");
+        SEQ_printf(m, "dl_rq[%d]:\n", cpu);
 
 #define PU(x) \
         SEQ_printf(m, "  .%-30s: %lu\n", #x, (unsigned long)(dl_rq->x))
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 663b2355a3aa..aad49451584e 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -950,12 +950,13 @@ static void update_curr_rt(struct rq *rq)
 {
         struct task_struct *curr = rq->curr;
         struct sched_rt_entity *rt_se = &curr->rt;
-        u64 now = rq_clock_task(rq);
         u64 delta_exec;
+        u64 now;
 
         if (curr->sched_class != &rt_sched_class)
                 return;
 
+        now = rq_clock_task(rq);
         delta_exec = now - curr->se.exec_start;
         if (unlikely((s64)delta_exec <= 0))
                 return;
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 940fa408a288..dc77548167ef 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -1076,14 +1076,16 @@ long seccomp_get_metadata(struct task_struct *task,
 
         size = min_t(unsigned long, size, sizeof(kmd));
 
-        if (copy_from_user(&kmd, data, size))
+        if (size < sizeof(kmd.filter_off))
+                return -EINVAL;
+
+        if (copy_from_user(&kmd.filter_off, data, sizeof(kmd.filter_off)))
                 return -EFAULT;
 
         filter = get_nth_filter(task, kmd.filter_off);
         if (IS_ERR(filter))
                 return PTR_ERR(filter);
 
-        memset(&kmd, 0, sizeof(kmd));
         if (filter->log)
                 kmd.flags |= SECCOMP_FILTER_FLAG_LOG;
 
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 75043046914e..10b7186d0638 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -50,6 +50,7 @@
 #include <linux/export.h>
 #include <linux/hashtable.h>
 #include <linux/compat.h>
+#include <linux/nospec.h>
 
 #include "timekeeping.h"
 #include "posix-timers.h"
@@ -1346,11 +1347,15 @@ static const struct k_clock * const posix_clocks[] = {
 
 static const struct k_clock *clockid_to_kclock(const clockid_t id)
 {
-        if (id < 0)
+        clockid_t idx = id;
+
+        if (id < 0) {
                 return (id & CLOCKFD_MASK) == CLOCKFD ?
                         &clock_posix_dynamic : &clock_posix_cpu;
+        }
 
-        if (id >= ARRAY_SIZE(posix_clocks) || !posix_clocks[id])
+        if (id >= ARRAY_SIZE(posix_clocks))
                 return NULL;
-        return posix_clocks[id];
+
+        return posix_clocks[array_index_nospec(idx, ARRAY_SIZE(posix_clocks))];
 }
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 48150ab42de9..4a4fd567fb26 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1894,6 +1894,12 @@ int timers_dead_cpu(unsigned int cpu)
                 raw_spin_lock_irq(&new_base->lock);
                 raw_spin_lock_nested(&old_base->lock, SINGLE_DEPTH_NESTING);
 
+                /*
+                 * The current CPUs base clock might be stale. Update it
+                 * before moving the timers over.
+                 */
+                forward_timer_base(new_base);
+
                 BUG_ON(old_base->running_timer);
 
                 for (i = 0; i < WHEEL_SIZE; i++)
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index fc2838ac8b78..01e6b3a38871 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -661,7 +661,41 @@ static const struct bpf_func_proto bpf_get_stackid_proto_tp = {
         .arg3_type      = ARG_ANYTHING,
 };
 
-BPF_CALL_3(bpf_perf_prog_read_value_tp, struct bpf_perf_event_data_kern *, ctx,
+static const struct bpf_func_proto *tp_prog_func_proto(enum bpf_func_id func_id)
+{
+        switch (func_id) {
+        case BPF_FUNC_perf_event_output:
+                return &bpf_perf_event_output_proto_tp;
+        case BPF_FUNC_get_stackid:
+                return &bpf_get_stackid_proto_tp;
+        default:
+                return tracing_func_proto(func_id);
+        }
+}
+
+static bool tp_prog_is_valid_access(int off, int size, enum bpf_access_type type,
+                                    struct bpf_insn_access_aux *info)
+{
+        if (off < sizeof(void *) || off >= PERF_MAX_TRACE_SIZE)
+                return false;
+        if (type != BPF_READ)
+                return false;
+        if (off % size != 0)
+                return false;
+
+        BUILD_BUG_ON(PERF_MAX_TRACE_SIZE % sizeof(__u64));
+        return true;
+}
+
+const struct bpf_verifier_ops tracepoint_verifier_ops = {
+        .get_func_proto  = tp_prog_func_proto,
+        .is_valid_access = tp_prog_is_valid_access,
+};
+
+const struct bpf_prog_ops tracepoint_prog_ops = {
+};
+
+BPF_CALL_3(bpf_perf_prog_read_value, struct bpf_perf_event_data_kern *, ctx,
            struct bpf_perf_event_value *, buf, u32, size)
 {
         int err = -EINVAL;
@@ -678,8 +712,8 @@ clear:
         return err;
 }
 
-static const struct bpf_func_proto bpf_perf_prog_read_value_proto_tp = {
-         .func           = bpf_perf_prog_read_value_tp,
+static const struct bpf_func_proto bpf_perf_prog_read_value_proto = {
+         .func           = bpf_perf_prog_read_value,
          .gpl_only       = true,
          .ret_type       = RET_INTEGER,
          .arg1_type      = ARG_PTR_TO_CTX,
@@ -687,7 +721,7 @@ static const struct bpf_func_proto bpf_perf_prog_read_value_proto_tp = {
          .arg3_type      = ARG_CONST_SIZE,
 };
 
-static const struct bpf_func_proto *tp_prog_func_proto(enum bpf_func_id func_id)
+static const struct bpf_func_proto *pe_prog_func_proto(enum bpf_func_id func_id)
 {
         switch (func_id) {
         case BPF_FUNC_perf_event_output:
@@ -695,34 +729,12 @@ static const struct bpf_func_proto *tp_prog_func_proto(enum bpf_func_id func_id)
         case BPF_FUNC_get_stackid:
                 return &bpf_get_stackid_proto_tp;
         case BPF_FUNC_perf_prog_read_value:
-                return &bpf_perf_prog_read_value_proto_tp;
+                return &bpf_perf_prog_read_value_proto;
         default:
                 return tracing_func_proto(func_id);
         }
 }
 
-static bool tp_prog_is_valid_access(int off, int size, enum bpf_access_type type,
-                                    struct bpf_insn_access_aux *info)
-{
-        if (off < sizeof(void *) || off >= PERF_MAX_TRACE_SIZE)
-                return false;
-        if (type != BPF_READ)
-                return false;
-        if (off % size != 0)
-                return false;
-
-        BUILD_BUG_ON(PERF_MAX_TRACE_SIZE % sizeof(__u64));
-        return true;
-}
-
-const struct bpf_verifier_ops tracepoint_verifier_ops = {
-        .get_func_proto  = tp_prog_func_proto,
-        .is_valid_access = tp_prog_is_valid_access,
-};
-
-const struct bpf_prog_ops tracepoint_prog_ops = {
-};
-
 static bool pe_prog_is_valid_access(int off, int size, enum bpf_access_type type,
                                     struct bpf_insn_access_aux *info)
 {
@@ -779,7 +791,7 @@ static u32 pe_prog_convert_ctx_access(enum bpf_access_type type,
 }
 
 const struct bpf_verifier_ops perf_event_verifier_ops = {
-        .get_func_proto         = tp_prog_func_proto,
+        .get_func_proto         = pe_prog_func_proto,
         .is_valid_access        = pe_prog_is_valid_access,
         .convert_ctx_access     = pe_prog_convert_ctx_access,
 };
@@ -872,6 +884,8 @@ int perf_event_query_prog_array(struct perf_event *event, void __user *info)
                 return -EINVAL;
         if (copy_from_user(&query, uquery, sizeof(query)))
                 return -EFAULT;
+        if (query.ids_len > BPF_TRACE_MAX_PROGS)
+                return -E2BIG;
 
         mutex_lock(&bpf_event_mutex);
         ret = bpf_prog_array_copy_info(event->tp_event->prog_array,
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 1fad24acd444..ae4147eaebd4 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -659,7 +659,7 @@ static int create_trace_kprobe(int argc, char **argv)
         char *symbol = NULL, *event = NULL, *group = NULL;
         int maxactive = 0;
         char *arg;
-        unsigned long offset = 0;
+        long offset = 0;
         void *addr = NULL;
         char buf[MAX_EVENT_NAME_LEN];
 
@@ -747,7 +747,7 @@ static int create_trace_kprobe(int argc, char **argv)
                 symbol = argv[1];
                 /* TODO: support .init module functions */
                 ret = traceprobe_split_symbol_offset(symbol, &offset);
-                if (ret) {
+                if (ret || offset < 0 || offset > UINT_MAX) {
                         pr_info("Failed to parse either an address or a symbol.\n");
                         return ret;
                 }
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index d59357308677..daf54bda4dc8 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -320,7 +320,7 @@ static fetch_func_t get_fetch_size_function(const struct fetch_type *type,
 }
 
 /* Split symbol and offset. */
-int traceprobe_split_symbol_offset(char *symbol, unsigned long *offset)
+int traceprobe_split_symbol_offset(char *symbol, long *offset)
 {
         char *tmp;
         int ret;
@@ -328,13 +328,11 @@ int traceprobe_split_symbol_offset(char *symbol, unsigned long *offset)
         if (!offset)
                 return -EINVAL;
 
-        tmp = strchr(symbol, '+');
+        tmp = strpbrk(symbol, "+-");
         if (tmp) {
-                /* skip sign because kstrtoul doesn't accept '+' */
-                ret = kstrtoul(tmp + 1, 0, offset);
+                ret = kstrtol(tmp, 0, offset);
                 if (ret)
                         return ret;
-
                 *tmp = '\0';
         } else
                 *offset = 0;
diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h
index e101c5bb9eda..6a4d3fa94042 100644
--- a/kernel/trace/trace_probe.h
+++ b/kernel/trace/trace_probe.h
@@ -365,7 +365,7 @@ extern int traceprobe_conflict_field_name(const char *name,
 extern void traceprobe_update_arg(struct probe_arg *arg);
 extern void traceprobe_free_probe_arg(struct probe_arg *arg);
 
-extern int traceprobe_split_symbol_offset(char *symbol, unsigned long *offset);
+extern int traceprobe_split_symbol_offset(char *symbol, long *offset);
 
 /* Sum up total data length for dynamic arraies (strings) */
 static nokprobe_inline int
diff --git a/kernel/user.c b/kernel/user.c
index 9a20acce460d..36288d840675 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -101,6 +101,7 @@ struct user_struct root_user = {
         .sigpending     = ATOMIC_INIT(0),
         .locked_shm     = 0,
         .uid            = GLOBAL_ROOT_UID,
+        .ratelimit      = RATELIMIT_STATE_INIT(root_user.ratelimit, 0, 0),
 };
 
 /*
@@ -191,6 +192,8 @@ struct user_struct *alloc_uid(kuid_t uid)
 
                 new->uid = uid;
                 atomic_set(&new->__count, 1);
+                ratelimit_state_init(&new->ratelimit, HZ, 100);
+                ratelimit_set_flags(&new->ratelimit, RATELIMIT_MSG_ON_RELEASE);
 
                 /*
                  * Before adding this, check whether we raced
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 017044c26233..6ec6ba65127b 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3018,14 +3018,6 @@ static bool __cancel_work(struct work_struct *work, bool is_dwork)
         return ret;
 }
 
-/*
- * See cancel_delayed_work()
- */
-bool cancel_work(struct work_struct *work)
-{
-        return __cancel_work(work, false);
-}
-
 /**
  * cancel_delayed_work - cancel a delayed work
  * @dwork: delayed_work to cancel
@@ -4180,6 +4172,22 @@ void workqueue_set_max_active(struct workqueue_struct *wq, int max_active)
 EXPORT_SYMBOL_GPL(workqueue_set_max_active);
 
 /**
+ * current_work - retrieve %current task's work struct
+ *
+ * Determine if %current task is a workqueue worker and what it's working on.
+ * Useful to find out the context that the %current task is running in.
+ *
+ * Return: work struct if %current task is a workqueue worker, %NULL otherwise.
+ */
+struct work_struct *current_work(void)
+{
+        struct worker *worker = current_wq_worker();
+
+        return worker ? worker->current_work : NULL;
+}
+EXPORT_SYMBOL(current_work);
+
+/**
  * current_is_workqueue_rescuer - is %current workqueue rescuer?
  *
  * Determine whether %current is a workqueue rescuer.  Can be used from
@@ -5321,7 +5329,7 @@ int workqueue_sysfs_register(struct workqueue_struct *wq)
 
         ret = device_register(&wq_dev->dev);
         if (ret) {
-                kfree(wq_dev);
+                put_device(&wq_dev->dev);
                 wq->wq_dev = NULL;
                 return ret;
         }
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6088408ef26c..64155e310a9f 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1642,6 +1642,7 @@ config DMA_API_DEBUG
 
 menuconfig RUNTIME_TESTING_MENU
         bool "Runtime Testing"
+        def_bool y
 
 if RUNTIME_TESTING_MENU
 
diff --git a/lib/btree.c b/lib/btree.c
index f93a945274af..590facba2c50 100644
--- a/lib/btree.c
+++ b/lib/btree.c
@@ -3,7 +3,7 @@
  *
  * As should be obvious for Linux kernel code, license is GPLv2
  *
- * Copyright (c) 2007-2008 Joern Engel <joern@logfs.org>
+ * Copyright (c) 2007-2008 Joern Engel <joern@purestorage.com>
  * Bits and pieces stolen from Peter Zijlstra's code, which is
  * Copyright 2007, Red Hat Inc. Peter Zijlstra
  * GPLv2
@@ -76,6 +76,8 @@ struct btree_geo btree_geo128 = {
 };
 EXPORT_SYMBOL_GPL(btree_geo128);
 
+#define MAX_KEYLEN      (2 * LONG_PER_U64)
+
 static struct kmem_cache *btree_cachep;
 
 void *btree_alloc(gfp_t gfp_mask, void *pool_data)
@@ -313,7 +315,7 @@ void *btree_get_prev(struct btree_head *head, struct btree_geo *geo,
 {
         int i, height;
         unsigned long *node, *oldnode;
-        unsigned long *retry_key = NULL, key[geo->keylen];
+        unsigned long *retry_key = NULL, key[MAX_KEYLEN];
 
         if (keyzero(geo, __key))
                 return NULL;
@@ -639,8 +641,8 @@ EXPORT_SYMBOL_GPL(btree_remove);
 int btree_merge(struct btree_head *target, struct btree_head *victim,
                 struct btree_geo *geo, gfp_t gfp)
 {
-        unsigned long key[geo->keylen];
-        unsigned long dup[geo->keylen];
+        unsigned long key[MAX_KEYLEN];
+        unsigned long dup[MAX_KEYLEN];
         void *val;
         int err;
 
diff --git a/lib/bug.c b/lib/bug.c
index c1b0fad31b10..1077366f496b 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -150,6 +150,8 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
                 return BUG_TRAP_TYPE_NONE;
 
         bug = find_bug(bugaddr);
+        if (!bug)
+                return BUG_TRAP_TYPE_NONE;
 
         file = NULL;
         line = 0;
@@ -191,7 +193,7 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
         if (file)
                 pr_crit("kernel BUG at %s:%u!\n", file, line);
         else
-                pr_crit("Kernel BUG at %p [verbose debug info unavailable]\n",
+                pr_crit("Kernel BUG at %pB [verbose debug info unavailable]\n",
                         (void *)bugaddr);
 
         return BUG_TRAP_TYPE_BUG;
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 1b34d210452c..7f5cdc1e6b29 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -1491,12 +1491,12 @@ void debug_dma_alloc_coherent(struct device *dev, size_t size,
         if (unlikely(virt == NULL))
                 return;
 
-        entry = dma_entry_alloc();
-        if (!entry)
+        /* handle vmalloc and linear addresses */
+        if (!is_vmalloc_addr(virt) && !virt_addr_valid(virt))
                 return;
 
-        /* handle vmalloc and linear addresses */
-        if (!is_vmalloc_addr(virt) && !virt_to_page(virt))
+        entry = dma_entry_alloc();
+        if (!entry)
                 return;
 
         entry->type      = dma_debug_coherent;
@@ -1528,7 +1528,7 @@ void debug_dma_free_coherent(struct device *dev, size_t size,
         };
 
         /* handle vmalloc and linear addresses */
-        if (!is_vmalloc_addr(virt) && !virt_to_page(virt))
+        if (!is_vmalloc_addr(virt) && !virt_addr_valid(virt))
                 return;
 
         if (is_vmalloc_addr(virt))
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 40b1f92f2214..c9e8e21cb334 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -84,6 +84,10 @@ again:
         return page_address(page);
 }
 
+/*
+ * NOTE: this function must never look at the dma_addr argument, because we want
+ * to be able to use it as a helper for iommu implementations as well.
+ */
 void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
                 dma_addr_t dma_addr, unsigned long attrs)
 {
@@ -152,5 +156,6 @@ const struct dma_map_ops dma_direct_ops = {
         .map_sg                 = dma_direct_map_sg,
         .dma_supported          = dma_direct_supported,
         .mapping_error          = dma_direct_mapping_error,
+        .is_phys                = 1,
 };
 EXPORT_SYMBOL(dma_direct_ops);
diff --git a/lib/idr.c b/lib/idr.c
index c98d77fcf393..823b813f08f8 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -36,8 +36,8 @@ int idr_alloc_u32(struct idr *idr, void *ptr, u32 *nextid,
 {
         struct radix_tree_iter iter;
         void __rcu **slot;
-        int base = idr->idr_base;
-        int id = *nextid;
+        unsigned int base = idr->idr_base;
+        unsigned int id = *nextid;
 
         if (WARN_ON_ONCE(radix_tree_is_internal_node(ptr)))
                 return -EINVAL;
@@ -204,10 +204,11 @@ int idr_for_each(const struct idr *idr,
 
         radix_tree_for_each_slot(slot, &idr->idr_rt, &iter, 0) {
                 int ret;
+                unsigned long id = iter.index + base;
 
-                if (WARN_ON_ONCE(iter.index > INT_MAX))
+                if (WARN_ON_ONCE(id > INT_MAX))
                         break;
-                ret = fn(iter.index + base, rcu_dereference_raw(*slot), data);
+                ret = fn(id, rcu_dereference_raw(*slot), data);
                 if (ret)
                         return ret;
         }
@@ -230,8 +231,8 @@ void *idr_get_next(struct idr *idr, int *nextid)
 {
         struct radix_tree_iter iter;
         void __rcu **slot;
-        int base = idr->idr_base;
-        int id = *nextid;
+        unsigned long base = idr->idr_base;
+        unsigned long id = *nextid;
 
         id = (id < base) ? 0 : id - base;
         slot = radix_tree_iter_find(&idr->idr_rt, &iter, id);
@@ -431,7 +432,6 @@ int ida_get_new_above(struct ida *ida, int start, int *id)
                         bitmap = this_cpu_xchg(ida_bitmap, NULL);
                         if (!bitmap)
                                 return -EAGAIN;
-                        memset(bitmap, 0, sizeof(*bitmap));
                         bitmap->bitmap[0] = tmp >> RADIX_TREE_EXCEPTIONAL_SHIFT;
                         rcu_assign_pointer(*slot, bitmap);
                 }
@@ -464,7 +464,6 @@ int ida_get_new_above(struct ida *ida, int start, int *id)
                         bitmap = this_cpu_xchg(ida_bitmap, NULL);
                         if (!bitmap)
                                 return -EAGAIN;
-                        memset(bitmap, 0, sizeof(*bitmap));
                         __set_bit(bit, bitmap->bitmap);
                         radix_tree_iter_replace(root, &iter, slot, bitmap);
                 }
diff --git a/lib/ioremap.c b/lib/ioremap.c
index b808a390e4c3..54e5bbaa3200 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -91,7 +91,8 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
 
                 if (ioremap_pmd_enabled() &&
                     ((next - addr) == PMD_SIZE) &&
-                    IS_ALIGNED(phys_addr + addr, PMD_SIZE)) {
+                    IS_ALIGNED(phys_addr + addr, PMD_SIZE) &&
+                    pmd_free_pte_page(pmd)) {
                         if (pmd_set_huge(pmd, phys_addr + addr, prot))
                                 continue;
                 }
@@ -117,7 +118,8 @@ static inline int ioremap_pud_range(p4d_t *p4d, unsigned long addr,
 
                 if (ioremap_pud_enabled() &&
                     ((next - addr) == PUD_SIZE) &&
-                    IS_ALIGNED(phys_addr + addr, PUD_SIZE)) {
+                    IS_ALIGNED(phys_addr + addr, PUD_SIZE) &&
+                    pud_free_pmd_page(pud)) {
                         if (pud_set_huge(pud, phys_addr + addr, prot))
                                 continue;
                 }
diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
index 30e7dd88148b..9f96fa7bc000 100644
--- a/lib/percpu-refcount.c
+++ b/lib/percpu-refcount.c
@@ -322,6 +322,8 @@ EXPORT_SYMBOL_GPL(percpu_ref_switch_to_percpu);
  * This function normally doesn't block and can be called from any context
  * but it may block if @confirm_kill is specified and @ref is in the
  * process of switching to atomic mode by percpu_ref_switch_to_atomic().
+ *
+ * There are no implied RCU grace periods between kill and release.
  */
 void percpu_ref_kill_and_confirm(struct percpu_ref *ref,
                                  percpu_ref_func_t *confirm_kill)
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 0a7ae3288a24..8e00138d593f 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -2125,7 +2125,7 @@ int ida_pre_get(struct ida *ida, gfp_t gfp)
                 preempt_enable();
 
         if (!this_cpu_read(ida_bitmap)) {
-                struct ida_bitmap *bitmap = kmalloc(sizeof(*bitmap), gfp);
+                struct ida_bitmap *bitmap = kzalloc(sizeof(*bitmap), gfp);
                 if (!bitmap)
                         return 0;
                 if (this_cpu_cmpxchg(ida_bitmap, NULL, bitmap))
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index 3825c30aaa36..47de025b6245 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -506,8 +506,10 @@ static void *rhashtable_lookup_one(struct rhashtable *ht,
                 if (!key ||
                     (ht->p.obj_cmpfn ?
                      ht->p.obj_cmpfn(&arg, rht_obj(ht, head)) :
-                     rhashtable_compare(&arg, rht_obj(ht, head))))
+                     rhashtable_compare(&arg, rht_obj(ht, head)))) {
+                        pprev = &head->next;
                         continue;
+                }
 
                 if (!ht->rhlist)
                         return rht_obj(ht, head);
diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index b4e22345963f..3e9335493fe4 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -24,10 +24,11 @@
 #include <linux/if_vlan.h>
 #include <linux/random.h>
 #include <linux/highmem.h>
+#include <linux/sched.h>
 
 /* General test specific settings */
 #define MAX_SUBTESTS    3
-#define MAX_TESTRUNS    10000
+#define MAX_TESTRUNS    1000
 #define MAX_DATA        128
 #define MAX_INSNS       512
 #define MAX_K           0xffffFFFF
@@ -5466,7 +5467,7 @@ static struct bpf_test tests[] = {
         {
                 "BPF_MAXINSNS: Jump, gap, jump, ...",
                 { },
-#ifdef CONFIG_BPF_JIT_ALWAYS_ON
+#if defined(CONFIG_BPF_JIT_ALWAYS_ON) && defined(CONFIG_X86)
                 CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
 #else
                 CLASSIC | FLAG_NO_DATA,
@@ -6582,6 +6583,7 @@ static __init int test_bpf(void)
                 struct bpf_prog *fp;
                 int err;
 
+                cond_resched();
                 if (exclude_test(i))
                         continue;
 
diff --git a/lib/test_kmod.c b/lib/test_kmod.c
index e372b97eee13..0e5b7a61460b 100644
--- a/lib/test_kmod.c
+++ b/lib/test_kmod.c
@@ -1141,7 +1141,7 @@ static struct kmod_test_device *register_test_dev_kmod(void)
         mutex_lock(&reg_dev_mutex);
 
         /* int should suffice for number of devices, test for wrap */
-        if (unlikely(num_test_devs + 1) < 0) {
+        if (num_test_devs + 1 == INT_MAX) {
                 pr_err("reached limit of number of test devices\n");
                 goto out;
         }
diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c
index 76d3667fdea2..f4000c137dbe 100644
--- a/lib/test_rhashtable.c
+++ b/lib/test_rhashtable.c
@@ -79,6 +79,21 @@ struct thread_data {
         struct test_obj *objs;
 };
 
+static u32 my_hashfn(const void *data, u32 len, u32 seed)
+{
+        const struct test_obj_rhl *obj = data;
+
+        return (obj->value.id % 10) << RHT_HASH_RESERVED_SPACE;
+}
+
+static int my_cmpfn(struct rhashtable_compare_arg *arg, const void *obj)
+{
+        const struct test_obj_rhl *test_obj = obj;
+        const struct test_obj_val *val = arg->key;
+
+        return test_obj->value.id - val->id;
+}
+
 static struct rhashtable_params test_rht_params = {
         .head_offset = offsetof(struct test_obj, node),
         .key_offset = offsetof(struct test_obj, value),
@@ -87,6 +102,17 @@ static struct rhashtable_params test_rht_params = {
         .nulls_base = (3U << RHT_BASE_SHIFT),
 };
 
+static struct rhashtable_params test_rht_params_dup = {
+        .head_offset = offsetof(struct test_obj_rhl, list_node),
+        .key_offset = offsetof(struct test_obj_rhl, value),
+        .key_len = sizeof(struct test_obj_val),
+        .hashfn = jhash,
+        .obj_hashfn = my_hashfn,
+        .obj_cmpfn = my_cmpfn,
+        .nelem_hint = 128,
+        .automatic_shrinking = false,
+};
+
 static struct semaphore prestart_sem;
 static struct semaphore startup_sem = __SEMAPHORE_INITIALIZER(startup_sem, 0);
 
@@ -465,6 +491,112 @@ static int __init test_rhashtable_max(struct test_obj *array,
         return err;
 }
 
+static unsigned int __init print_ht(struct rhltable *rhlt)
+{
+        struct rhashtable *ht;
+        const struct bucket_table *tbl;
+        char buff[512] = "";
+        unsigned int i, cnt = 0;
+
+        ht = &rhlt->ht;
+        tbl = rht_dereference(ht->tbl, ht);
+        for (i = 0; i < tbl->size; i++) {
+                struct rhash_head *pos, *next;
+                struct test_obj_rhl *p;
+
+                pos = rht_dereference(tbl->buckets[i], ht);
+                next = !rht_is_a_nulls(pos) ? rht_dereference(pos->next, ht) : NULL;
+
+                if (!rht_is_a_nulls(pos)) {
+                        sprintf(buff, "%s\nbucket[%d] -> ", buff, i);
+                }
+
+                while (!rht_is_a_nulls(pos)) {
+                        struct rhlist_head *list = container_of(pos, struct rhlist_head, rhead);
+                        sprintf(buff, "%s[[", buff);
+                        do {
+                                pos = &list->rhead;
+                                list = rht_dereference(list->next, ht);
+                                p = rht_obj(ht, pos);
+
+                                sprintf(buff, "%s val %d (tid=%d)%s", buff, p->value.id, p->value.tid,
+                                        list? ", " : " ");
+                                cnt++;
+                        } while (list);
+
+                        pos = next,
+                        next = !rht_is_a_nulls(pos) ?
+                                rht_dereference(pos->next, ht) : NULL;
+
+                        sprintf(buff, "%s]]%s", buff, !rht_is_a_nulls(pos) ? " -> " : "");
+                }
+        }
+        printk(KERN_ERR "\n---- ht: ----%s\n-------------\n", buff);
+
+        return cnt;
+}
+
+static int __init test_insert_dup(struct test_obj_rhl *rhl_test_objects,
+                                  int cnt, bool slow)
+{
+        struct rhltable rhlt;
+        unsigned int i, ret;
+        const char *key;
+        int err = 0;
+
+        err = rhltable_init(&rhlt, &test_rht_params_dup);
+        if (WARN_ON(err))
+                return err;
+
+        for (i = 0; i < cnt; i++) {
+                rhl_test_objects[i].value.tid = i;
+                key = rht_obj(&rhlt.ht, &rhl_test_objects[i].list_node.rhead);
+                key += test_rht_params_dup.key_offset;
+
+                if (slow) {
+                        err = PTR_ERR(rhashtable_insert_slow(&rhlt.ht, key,
+                                                             &rhl_test_objects[i].list_node.rhead));
+                        if (err == -EAGAIN)
+                                err = 0;
+                } else
+                        err = rhltable_insert(&rhlt,
+                                              &rhl_test_objects[i].list_node,
+                                              test_rht_params_dup);
+                if (WARN(err, "error %d on element %d/%d (%s)\n", err, i, cnt, slow? "slow" : "fast"))
+                        goto skip_print;
+        }
+
+        ret = print_ht(&rhlt);
+        WARN(ret != cnt, "missing rhltable elements (%d != %d, %s)\n", ret, cnt, slow? "slow" : "fast");
+
+skip_print:
+        rhltable_destroy(&rhlt);
+
+        return 0;
+}
+
+static int __init test_insert_duplicates_run(void)
+{
+        struct test_obj_rhl rhl_test_objects[3] = {};
+
+        pr_info("test inserting duplicates\n");
+
+        /* two different values that map to same bucket */
+        rhl_test_objects[0].value.id = 1;
+        rhl_test_objects[1].value.id = 21;
+
+        /* and another duplicate with same as [0] value
+         * which will be second on the bucket list */
+        rhl_test_objects[2].value.id = rhl_test_objects[0].value.id;
+
+        test_insert_dup(rhl_test_objects, 2, false);
+        test_insert_dup(rhl_test_objects, 3, false);
+        test_insert_dup(rhl_test_objects, 2, true);
+        test_insert_dup(rhl_test_objects, 3, true);
+
+        return 0;
+}
+
 static int thread_lookup_test(struct thread_data *tdata)
 {
         unsigned int entries = tdata->entries;
@@ -613,6 +745,8 @@ static int __init test_rht_init(void)
         do_div(total_time, runs);
         pr_info("Average test time: %llu\n", total_time);
 
+        test_insert_duplicates_run();
+
         if (!tcount)
                 return 0;
 
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 77ee6ced11b1..d7a708f82559 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1849,7 +1849,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 {
         const int default_width = 2 * sizeof(void *);
 
-        if (!ptr && *fmt != 'K') {
+        if (!ptr && *fmt != 'K' && *fmt != 'x') {
                 /*
                  * Print (null) with the same width as a pointer so it makes
                  * tabular output look nice.
diff --git a/mm/gup.c b/mm/gup.c
index 1b46e6e74881..6afae32571ca 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -516,7 +516,7 @@ static int faultin_page(struct task_struct *tsk, struct vm_area_struct *vma,
         }
 
         if (ret & VM_FAULT_RETRY) {
-                if (nonblocking)
+                if (nonblocking && !(fault_flags & FAULT_FLAG_RETRY_NOWAIT))
                         *nonblocking = 0;
                 return -EBUSY;
         }
@@ -890,7 +890,10 @@ static __always_inline long __get_user_pages_locked(struct task_struct *tsk,
                                 break;
                 }
                 if (*locked) {
-                        /* VM_FAULT_RETRY didn't trigger */
+                        /*
+                         * VM_FAULT_RETRY didn't trigger or it was a
+                         * FOLL_NOWAIT.
+                         */
                         if (!pages_done)
                                 pages_done = ret;
                         break;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 87ab9b8f56b5..5a68730eebd6 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -555,7 +555,8 @@ static int __do_huge_pmd_anonymous_page(struct vm_fault *vmf, struct page *page,
 
         VM_BUG_ON_PAGE(!PageCompound(page), page);
 
-        if (mem_cgroup_try_charge(page, vma->vm_mm, gfp, &memcg, true)) {
+        if (mem_cgroup_try_charge(page, vma->vm_mm, gfp | __GFP_NORETRY, &memcg,
+                                  true)) {
                 put_page(page);
                 count_vm_event(THP_FAULT_FALLBACK);
                 return VM_FAULT_FALLBACK;
@@ -1316,7 +1317,7 @@ alloc:
         }
 
         if (unlikely(mem_cgroup_try_charge(new_page, vma->vm_mm,
-                                        huge_gfp, &memcg, true))) {
+                                huge_gfp | __GFP_NORETRY, &memcg, true))) {
                 put_page(new_page);
                 split_huge_pmd(vma, vmf->pmd, vmf->address);
                 if (page)
@@ -2783,11 +2784,13 @@ static unsigned long deferred_split_scan(struct shrinker *shrink,
 
         list_for_each_safe(pos, next, &list) {
                 page = list_entry((void *)pos, struct page, mapping);
-                lock_page(page);
+                if (!trylock_page(page))
+                        goto next;
                 /* split_huge_page() removes page from list on success */
                 if (!split_huge_page(page))
                         split++;
                 unlock_page(page);
+next:
                 put_page(page);
         }
 
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 7c204e3d132b..976bbc5646fe 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -18,6 +18,7 @@
 #include <linux/bootmem.h>
 #include <linux/sysfs.h>
 #include <linux/slab.h>
+#include <linux/mmdebug.h>
 #include <linux/sched/signal.h>
 #include <linux/rmap.h>
 #include <linux/string_helpers.h>
@@ -1583,7 +1584,7 @@ static struct page *alloc_surplus_huge_page(struct hstate *h, gfp_t gfp_mask,
                 page = NULL;
         } else {
                 h->surplus_huge_pages++;
-                h->nr_huge_pages_node[page_to_nid(page)]++;
+                h->surplus_huge_pages_node[page_to_nid(page)]++;
         }
 
 out_unlock:
@@ -4374,6 +4375,12 @@ int hugetlb_reserve_pages(struct inode *inode,
         struct resv_map *resv_map;
         long gbl_reserve;
 
+        /* This should never happen */
+        if (from > to) {
+                VM_WARN(1, "%s called with a negative range\n", __func__);
+                return -EINVAL;
+        }
+
         /*
          * Only apply hugepage reservation if asked. At fault time, an
          * attempt will be made for VM_NORESERVE to allocate a page
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index b7e2268dfc9a..e42568284e06 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -530,7 +530,12 @@ static int __collapse_huge_page_isolate(struct vm_area_struct *vma,
                         goto out;
                 }
 
-                VM_BUG_ON_PAGE(PageCompound(page), page);
+                /* TODO: teach khugepaged to collapse THP mapped with pte */
+                if (PageCompound(page)) {
+                        result = SCAN_PAGE_COMPOUND;
+                        goto out;
+                }
+
                 VM_BUG_ON_PAGE(!PageAnon(page), page);
 
                 /*
@@ -960,7 +965,9 @@ static void collapse_huge_page(struct mm_struct *mm,
                 goto out_nolock;
         }
 
-        if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp, &memcg, true))) {
+        /* Do not oom kill for khugepaged charges */
+        if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp | __GFP_NORETRY,
+                                           &memcg, true))) {
                 result = SCAN_CGROUP_CHARGE_FAIL;
                 goto out_nolock;
         }
@@ -1319,7 +1326,9 @@ static void collapse_shmem(struct mm_struct *mm,
                 goto out;
         }
 
-        if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp, &memcg, true))) {
+        /* Do not oom kill for khugepaged charges */
+        if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp | __GFP_NORETRY,
+                                           &memcg, true))) {
                 result = SCAN_CGROUP_CHARGE_FAIL;
                 goto out;
         }
diff --git a/mm/memblock.c b/mm/memblock.c
index 5a9ca2a1751b..48376bd33274 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1101,34 +1101,6 @@ void __init_memblock __next_mem_pfn_range(int *idx, int nid,
                 *out_nid = r->nid;
 }
 
-unsigned long __init_memblock memblock_next_valid_pfn(unsigned long pfn,
-                                                      unsigned long max_pfn)
-{
-        struct memblock_type *type = &memblock.memory;
-        unsigned int right = type->cnt;
-        unsigned int mid, left = 0;
-        phys_addr_t addr = PFN_PHYS(pfn + 1);
-
-        do {
-                mid = (right + left) / 2;
-
-                if (addr < type->regions[mid].base)
-                        right = mid;
-                else if (addr >= (type->regions[mid].base +
-                                  type->regions[mid].size))
-                        left = mid + 1;
-                else {
-                        /* addr is within the region, so pfn + 1 is valid */
-                        return min(pfn + 1, max_pfn);
-                }
-        } while (left < right);
-
-        if (right == type->cnt)
-                return max_pfn;
-        else
-                return min(PHYS_PFN(type->regions[right].base), max_pfn);
-}
-
 /**
  * memblock_set_node - set node ID on memblock regions
  * @base: base of area to set node ID for
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 4b80ccee4535..8291b75f42c8 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1139,8 +1139,6 @@ int memory_failure(unsigned long pfn, int flags)
                 return 0;
         }
 
-        arch_unmap_kpfn(pfn);
-
         orig_head = hpage = compound_head(p);
         num_poisoned_pages_inc();
 
diff --git a/mm/memory.c b/mm/memory.c
index dd8de96f5547..5fcfc24904d1 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -80,7 +80,7 @@
 
 #include "internal.h"
 
-#ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS
+#if defined(LAST_CPUPID_NOT_IN_PAGE_FLAGS) && !defined(CONFIG_COMPILE_TEST)
 #warning Unfortunate NUMA and NUMA Balancing config, growing page-frame for last_cpupid.
 #endif
 
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index d879f1d8a44a..32cba0332787 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2124,6 +2124,9 @@ bool __mpol_equal(struct mempolicy *a, struct mempolicy *b)
         case MPOL_INTERLEAVE:
                 return !!nodes_equal(a->v.nodes, b->v.nodes);
         case MPOL_PREFERRED:
+                /* a's ->flags is the same as b's */
+                if (a->flags & MPOL_F_LOCAL)
+                        return true;
                 return a->v.preferred_node == b->v.preferred_node;
         default:
                 BUG();
diff --git a/mm/mlock.c b/mm/mlock.c
index 79398200e423..74e5a6547c3d 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -64,6 +64,12 @@ void clear_page_mlock(struct page *page)
         mod_zone_page_state(page_zone(page), NR_MLOCK,
                             -hpage_nr_pages(page));
         count_vm_event(UNEVICTABLE_PGCLEARED);
+        /*
+         * The previous TestClearPageMlocked() corresponds to the smp_mb()
+         * in __pagevec_lru_add_fn().
+         *
+         * See __pagevec_lru_add_fn for more explanation.
+         */
         if (!isolate_lru_page(page)) {
                 putback_lru_page(page);
         } else {
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 81e18ceef579..1741dd23e7c1 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -46,6 +46,7 @@
 #include <linux/stop_machine.h>
 #include <linux/sort.h>
 #include <linux/pfn.h>
+#include <xen/xen.h>
 #include <linux/backing-dev.h>
 #include <linux/fault-inject.h>
 #include <linux/page-isolation.h>
@@ -347,6 +348,9 @@ static inline bool update_defer_init(pg_data_t *pgdat,
         /* Always populate low zones for address-constrained allocations */
         if (zone_end < pgdat_end_pfn(pgdat))
                 return true;
+        /* Xen PV domains need page structures early */
+        if (xen_pv_domain())
+                return true;
         (*nr_initialised)++;
         if ((*nr_initialised > pgdat->static_init_pgcnt) &&
             (pfn & (PAGES_PER_SECTION - 1)) == 0) {
@@ -1906,7 +1910,9 @@ static int move_freepages(struct zone *zone,
          * Remove at a later date when no bug reports exist related to
          * grouping pages by mobility
          */
-        VM_BUG_ON(page_zone(start_page) != page_zone(end_page));
+        VM_BUG_ON(pfn_valid(page_to_pfn(start_page)) &&
+                  pfn_valid(page_to_pfn(end_page)) &&
+                  page_zone(start_page) != page_zone(end_page));
 #endif
 
         if (num_movable)
@@ -3590,7 +3596,7 @@ static bool __need_fs_reclaim(gfp_t gfp_mask)
                 return false;
 
         /* this guy won't enter reclaim */
-        if ((current->flags & PF_MEMALLOC) && !(gfp_mask & __GFP_NOMEMALLOC))
+        if (current->flags & PF_MEMALLOC)
                 return false;
 
         /* We're only interested __GFP_FS allocations for now */
@@ -5350,17 +5356,8 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
                 if (context != MEMMAP_EARLY)
                         goto not_early;
 
-                if (!early_pfn_valid(pfn)) {
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
-                        /*
-                         * Skip to the pfn preceding the next valid one (or
-                         * end_pfn), such that we hit a valid pfn (or end_pfn)
-                         * on our next iteration of the loop.
-                         */
-                        pfn = memblock_next_valid_pfn(pfn, end_pfn) - 1;
-#endif
+                if (!early_pfn_valid(pfn))
                         continue;
-                }
                 if (!early_pfn_in_nid(pfn, nid))
                         continue;
                 if (!update_defer_init(pgdat, pfn, end_pfn, &nr_initialised))
diff --git a/mm/percpu-km.c b/mm/percpu-km.c
index d2a76642c4ae..38de70ab1a0d 100644
--- a/mm/percpu-km.c
+++ b/mm/percpu-km.c
@@ -34,7 +34,7 @@
 #include <linux/log2.h>
 
 static int pcpu_populate_chunk(struct pcpu_chunk *chunk,
-                               int page_start, int page_end)
+                               int page_start, int page_end, gfp_t gfp)
 {
         return 0;
 }
@@ -45,18 +45,18 @@ static void pcpu_depopulate_chunk(struct pcpu_chunk *chunk,
         /* nada */
 }
 
-static struct pcpu_chunk *pcpu_create_chunk(void)
+static struct pcpu_chunk *pcpu_create_chunk(gfp_t gfp)
 {
         const int nr_pages = pcpu_group_sizes[0] >> PAGE_SHIFT;
         struct pcpu_chunk *chunk;
         struct page *pages;
         int i;
 
-        chunk = pcpu_alloc_chunk();
+        chunk = pcpu_alloc_chunk(gfp);
         if (!chunk)
                 return NULL;
 
-        pages = alloc_pages(GFP_KERNEL, order_base_2(nr_pages));
+        pages = alloc_pages(gfp, order_base_2(nr_pages));
         if (!pages) {
                 pcpu_free_chunk(chunk);
                 return NULL;
diff --git a/mm/percpu-vm.c b/mm/percpu-vm.c
index 9158e5a81391..d8078de912de 100644
--- a/mm/percpu-vm.c
+++ b/mm/percpu-vm.c
@@ -37,7 +37,7 @@ static struct page **pcpu_get_pages(void)
         lockdep_assert_held(&pcpu_alloc_mutex);
 
         if (!pages)
-                pages = pcpu_mem_zalloc(pages_size);
+                pages = pcpu_mem_zalloc(pages_size, GFP_KERNEL);
         return pages;
 }
 
@@ -73,18 +73,21 @@ static void pcpu_free_pages(struct pcpu_chunk *chunk,
  * @pages: array to put the allocated pages into, indexed by pcpu_page_idx()
  * @page_start: page index of the first page to be allocated
  * @page_end: page index of the last page to be allocated + 1
+ * @gfp: allocation flags passed to the underlying allocator
  *
  * Allocate pages [@page_start,@page_end) into @pages for all units.
  * The allocation is for @chunk.  Percpu core doesn't care about the
  * content of @pages and will pass it verbatim to pcpu_map_pages().
  */
 static int pcpu_alloc_pages(struct pcpu_chunk *chunk,
-                            struct page **pages, int page_start, int page_end)
+                            struct page **pages, int page_start, int page_end,
+                            gfp_t gfp)
 {
-        const gfp_t gfp = GFP_KERNEL | __GFP_HIGHMEM;
         unsigned int cpu, tcpu;
         int i;
 
+        gfp |= __GFP_HIGHMEM;
+
         for_each_possible_cpu(cpu) {
                 for (i = page_start; i < page_end; i++) {
                         struct page **pagep = &pages[pcpu_page_idx(cpu, i)];
@@ -262,6 +265,7 @@ static void pcpu_post_map_flush(struct pcpu_chunk *chunk,
  * @chunk: chunk of interest
  * @page_start: the start page
  * @page_end: the end page
+ * @gfp: allocation flags passed to the underlying memory allocator
  *
  * For each cpu, populate and map pages [@page_start,@page_end) into
  * @chunk.
@@ -270,7 +274,7 @@ static void pcpu_post_map_flush(struct pcpu_chunk *chunk,
  * pcpu_alloc_mutex, does GFP_KERNEL allocation.
  */
 static int pcpu_populate_chunk(struct pcpu_chunk *chunk,
-                               int page_start, int page_end)
+                               int page_start, int page_end, gfp_t gfp)
 {
         struct page **pages;
 
@@ -278,7 +282,7 @@ static int pcpu_populate_chunk(struct pcpu_chunk *chunk,
         if (!pages)
                 return -ENOMEM;
 
-        if (pcpu_alloc_pages(chunk, pages, page_start, page_end))
+        if (pcpu_alloc_pages(chunk, pages, page_start, page_end, gfp))
                 return -ENOMEM;
 
         if (pcpu_map_pages(chunk, pages, page_start, page_end)) {
@@ -325,12 +329,12 @@ static void pcpu_depopulate_chunk(struct pcpu_chunk *chunk,
         pcpu_free_pages(chunk, pages, page_start, page_end);
 }
 
-static struct pcpu_chunk *pcpu_create_chunk(void)
+static struct pcpu_chunk *pcpu_create_chunk(gfp_t gfp)
 {
         struct pcpu_chunk *chunk;
         struct vm_struct **vms;
 
-        chunk = pcpu_alloc_chunk();
+        chunk = pcpu_alloc_chunk(gfp);
         if (!chunk)
                 return NULL;
 
diff --git a/mm/percpu.c b/mm/percpu.c
index 50e7fdf84055..9297098519a6 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -80,6 +80,7 @@
 #include <linux/vmalloc.h>
 #include <linux/workqueue.h>
 #include <linux/kmemleak.h>
+#include <linux/sched.h>
 
 #include <asm/cacheflush.h>
 #include <asm/sections.h>
@@ -447,26 +448,25 @@ static void pcpu_next_fit_region(struct pcpu_chunk *chunk, int alloc_bits,
 /**
  * pcpu_mem_zalloc - allocate memory
  * @size: bytes to allocate
+ * @gfp: allocation flags
  *
  * Allocate @size bytes.  If @size is smaller than PAGE_SIZE,
- * kzalloc() is used; otherwise, vzalloc() is used.  The returned
- * memory is always zeroed.
- *
- * CONTEXT:
- * Does GFP_KERNEL allocation.
+ * kzalloc() is used; otherwise, the equivalent of vzalloc() is used.
+ * This is to facilitate passing through whitelisted flags.  The
+ * returned memory is always zeroed.
  *
  * RETURNS:
  * Pointer to the allocated area on success, NULL on failure.
  */
-static void *pcpu_mem_zalloc(size_t size)
+static void *pcpu_mem_zalloc(size_t size, gfp_t gfp)
 {
         if (WARN_ON_ONCE(!slab_is_available()))
                 return NULL;
 
         if (size <= PAGE_SIZE)
-                return kzalloc(size, GFP_KERNEL);
+                return kzalloc(size, gfp);
         else
-                return vzalloc(size);
+                return __vmalloc(size, gfp | __GFP_ZERO, PAGE_KERNEL);
 }
 
 /**
@@ -1154,12 +1154,12 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
         return chunk;
 }
 
-static struct pcpu_chunk *pcpu_alloc_chunk(void)
+static struct pcpu_chunk *pcpu_alloc_chunk(gfp_t gfp)
 {
         struct pcpu_chunk *chunk;
         int region_bits;
 
-        chunk = pcpu_mem_zalloc(pcpu_chunk_struct_size);
+        chunk = pcpu_mem_zalloc(pcpu_chunk_struct_size, gfp);
         if (!chunk)
                 return NULL;
 
@@ -1168,17 +1168,17 @@ static struct pcpu_chunk *pcpu_alloc_chunk(void)
         region_bits = pcpu_chunk_map_bits(chunk);
 
         chunk->alloc_map = pcpu_mem_zalloc(BITS_TO_LONGS(region_bits) *
-                                           sizeof(chunk->alloc_map[0]));
+                                           sizeof(chunk->alloc_map[0]), gfp);
         if (!chunk->alloc_map)
                 goto alloc_map_fail;
 
         chunk->bound_map = pcpu_mem_zalloc(BITS_TO_LONGS(region_bits + 1) *
-                                           sizeof(chunk->bound_map[0]));
+                                           sizeof(chunk->bound_map[0]), gfp);
         if (!chunk->bound_map)
                 goto bound_map_fail;
 
         chunk->md_blocks = pcpu_mem_zalloc(pcpu_chunk_nr_blocks(chunk) *
-                                           sizeof(chunk->md_blocks[0]));
+                                           sizeof(chunk->md_blocks[0]), gfp);
         if (!chunk->md_blocks)
                 goto md_blocks_fail;
 
@@ -1277,9 +1277,11 @@ static void pcpu_chunk_depopulated(struct pcpu_chunk *chunk,
  * pcpu_addr_to_page            - translate address to physical address
  * pcpu_verify_alloc_info       - check alloc_info is acceptable during init
  */
-static int pcpu_populate_chunk(struct pcpu_chunk *chunk, int off, int size);
-static void pcpu_depopulate_chunk(struct pcpu_chunk *chunk, int off, int size);
-static struct pcpu_chunk *pcpu_create_chunk(void);
+static int pcpu_populate_chunk(struct pcpu_chunk *chunk,
+                               int page_start, int page_end, gfp_t gfp);
+static void pcpu_depopulate_chunk(struct pcpu_chunk *chunk,
+                                  int page_start, int page_end);
+static struct pcpu_chunk *pcpu_create_chunk(gfp_t gfp);
 static void pcpu_destroy_chunk(struct pcpu_chunk *chunk);
 static struct page *pcpu_addr_to_page(void *addr);
 static int __init pcpu_verify_alloc_info(const struct pcpu_alloc_info *ai);
@@ -1339,6 +1341,8 @@ static struct pcpu_chunk *pcpu_chunk_addr_search(void *addr)
 static void __percpu *pcpu_alloc(size_t size, size_t align, bool reserved,
                                  gfp_t gfp)
 {
+        /* whitelisted flags that can be passed to the backing allocators */
+        gfp_t pcpu_gfp = gfp & (GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN);
         bool is_atomic = (gfp & GFP_KERNEL) != GFP_KERNEL;
         bool do_warn = !(gfp & __GFP_NOWARN);
         static int warn_limit = 10;
@@ -1369,8 +1373,17 @@ static void __percpu *pcpu_alloc(size_t size, size_t align, bool reserved,
                 return NULL;
         }
 
-        if (!is_atomic)
-                mutex_lock(&pcpu_alloc_mutex);
+        if (!is_atomic) {
+                /*
+                 * pcpu_balance_workfn() allocates memory under this mutex,
+                 * and it may wait for memory reclaim. Allow current task
+                 * to become OOM victim, in case of memory pressure.
+                 */
+                if (gfp & __GFP_NOFAIL)
+                        mutex_lock(&pcpu_alloc_mutex);
+                else if (mutex_lock_killable(&pcpu_alloc_mutex))
+                        return NULL;
+        }
 
         spin_lock_irqsave(&pcpu_lock, flags);
 
@@ -1421,7 +1434,7 @@ restart:
         }
 
         if (list_empty(&pcpu_slot[pcpu_nr_slots - 1])) {
-                chunk = pcpu_create_chunk();
+                chunk = pcpu_create_chunk(pcpu_gfp);
                 if (!chunk) {
                         err = "failed to allocate new chunk";
                         goto fail;
@@ -1450,7 +1463,7 @@ area_found:
                                            page_start, page_end) {
                         WARN_ON(chunk->immutable);
 
-                        ret = pcpu_populate_chunk(chunk, rs, re);
+                        ret = pcpu_populate_chunk(chunk, rs, re, pcpu_gfp);
 
                         spin_lock_irqsave(&pcpu_lock, flags);
                         if (ret) {
@@ -1561,10 +1574,17 @@ void __percpu *__alloc_reserved_percpu(size_t size, size_t align)
  * pcpu_balance_workfn - manage the amount of free chunks and populated pages
  * @work: unused
  *
- * Reclaim all fully free chunks except for the first one.
+ * Reclaim all fully free chunks except for the first one.  This is also
+ * responsible for maintaining the pool of empty populated pages.  However,
+ * it is possible that this is called when physical memory is scarce causing
+ * OOM killer to be triggered.  We should avoid doing so until an actual
+ * allocation causes the failure as it is possible that requests can be
+ * serviced from already backed regions.
  */
 static void pcpu_balance_workfn(struct work_struct *work)
 {
+        /* gfp flags passed to underlying allocators */
+        const gfp_t gfp = GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN;
         LIST_HEAD(to_free);
         struct list_head *free_head = &pcpu_slot[pcpu_nr_slots - 1];
         struct pcpu_chunk *chunk, *next;
@@ -1600,6 +1620,7 @@ static void pcpu_balance_workfn(struct work_struct *work)
                         spin_unlock_irq(&pcpu_lock);
                 }
                 pcpu_destroy_chunk(chunk);
+                cond_resched();
         }
 
         /*
@@ -1645,7 +1666,7 @@ retry_pop:
                                            chunk->nr_pages) {
                         int nr = min(re - rs, nr_to_pop);
 
-                        ret = pcpu_populate_chunk(chunk, rs, rs + nr);
+                        ret = pcpu_populate_chunk(chunk, rs, rs + nr, gfp);
                         if (!ret) {
                                 nr_to_pop -= nr;
                                 spin_lock_irq(&pcpu_lock);
@@ -1662,7 +1683,7 @@ retry_pop:
 
         if (nr_to_pop) {
                 /* ran out of chunks to populate, create a new one and retry */
-                chunk = pcpu_create_chunk();
+                chunk = pcpu_create_chunk(gfp);
                 if (chunk) {
                         spin_lock_irq(&pcpu_lock);
                         pcpu_chunk_relocate(chunk, -1);
diff --git a/mm/shmem.c b/mm/shmem.c
index 1907688b75ee..b85919243399 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -493,36 +493,45 @@ next:
                 info = list_entry(pos, struct shmem_inode_info, shrinklist);
                 inode = &info->vfs_inode;
 
-                if (nr_to_split && split >= nr_to_split) {
-                        iput(inode);
-                        continue;
-                }
+                if (nr_to_split && split >= nr_to_split)
+                        goto leave;
 
-                page = find_lock_page(inode->i_mapping,
+                page = find_get_page(inode->i_mapping,
                                 (inode->i_size & HPAGE_PMD_MASK) >> PAGE_SHIFT);
                 if (!page)
                         goto drop;
 
+                /* No huge page at the end of the file: nothing to split */
                 if (!PageTransHuge(page)) {
-                        unlock_page(page);
                         put_page(page);
                         goto drop;
                 }
 
+                /*
+                 * Leave the inode on the list if we failed to lock
+                 * the page at this time.
+                 *
+                 * Waiting for the lock may lead to deadlock in the
+                 * reclaim path.
+                 */
+                if (!trylock_page(page)) {
+                        put_page(page);
+                        goto leave;
+                }
+
                 ret = split_huge_page(page);
                 unlock_page(page);
                 put_page(page);
 
-                if (ret) {
-                        /* split failed: leave it on the list */
-                        iput(inode);
-                        continue;
-                }
+                /* If split failed leave the inode on the list */
+                if (ret)
+                        goto leave;
 
                 split++;
 drop:
                 list_del_init(&info->shrinklist);
                 removed++;
+leave:
                 iput(inode);
         }
 
diff --git a/mm/swap.c b/mm/swap.c
index 567a7b96e41d..0f17330dd0e5 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -446,30 +446,6 @@ void lru_cache_add(struct page *page)
 }
 
 /**
- * add_page_to_unevictable_list - add a page to the unevictable list
- * @page:  the page to be added to the unevictable list
- *
- * Add page directly to its zone's unevictable list.  To avoid races with
- * tasks that might be making the page evictable, through eg. munlock,
- * munmap or exit, while it's not on the lru, we want to add the page
- * while it's locked or otherwise "invisible" to other tasks.  This is
- * difficult to do when using the pagevec cache, so bypass that.
- */
-void add_page_to_unevictable_list(struct page *page)
-{
-        struct pglist_data *pgdat = page_pgdat(page);
-        struct lruvec *lruvec;
-
-        spin_lock_irq(&pgdat->lru_lock);
-        lruvec = mem_cgroup_page_lruvec(page, pgdat);
-        ClearPageActive(page);
-        SetPageUnevictable(page);
-        SetPageLRU(page);
-        add_page_to_lru_list(page, lruvec, LRU_UNEVICTABLE);
-        spin_unlock_irq(&pgdat->lru_lock);
-}
-
-/**
  * lru_cache_add_active_or_unevictable
  * @page:  the page to be added to LRU
  * @vma:   vma in which page is mapped for determining reclaimability
@@ -484,13 +460,9 @@ void lru_cache_add_active_or_unevictable(struct page *page,
 {
         VM_BUG_ON_PAGE(PageLRU(page), page);
 
-        if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED)) {
+        if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED))
                 SetPageActive(page);
-                lru_cache_add(page);
-                return;
-        }
-
-        if (!TestSetPageMlocked(page)) {
+        else if (!TestSetPageMlocked(page)) {
                 /*
                  * We use the irq-unsafe __mod_zone_page_stat because this
                  * counter is not modified from interrupt context, and the pte
@@ -500,7 +472,7 @@ void lru_cache_add_active_or_unevictable(struct page *page,
                                     hpage_nr_pages(page));
                 count_vm_event(UNEVICTABLE_PGMLOCKED);
         }
-        add_page_to_unevictable_list(page);
+        lru_cache_add(page);
 }
 
 /*
@@ -886,15 +858,55 @@ void lru_add_page_tail(struct page *page, struct page *page_tail,
 static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec,
                                  void *arg)
 {
-        int file = page_is_file_cache(page);
-        int active = PageActive(page);
-        enum lru_list lru = page_lru(page);
+        enum lru_list lru;
+        int was_unevictable = TestClearPageUnevictable(page);
 
         VM_BUG_ON_PAGE(PageLRU(page), page);
 
         SetPageLRU(page);
+        /*
+         * Page becomes evictable in two ways:
+         * 1) Within LRU lock [munlock_vma_pages() and __munlock_pagevec()].
+         * 2) Before acquiring LRU lock to put the page to correct LRU and then
+         *   a) do PageLRU check with lock [check_move_unevictable_pages]
+         *   b) do PageLRU check before lock [clear_page_mlock]
+         *
+         * (1) & (2a) are ok as LRU lock will serialize them. For (2b), we need
+         * following strict ordering:
+         *
+         * #0: __pagevec_lru_add_fn             #1: clear_page_mlock
+         *
+         * SetPageLRU()                         TestClearPageMlocked()
+         * smp_mb() // explicit ordering        // above provides strict
+         *                                      // ordering
+         * PageMlocked()                        PageLRU()
+         *
+         *
+         * if '#1' does not observe setting of PG_lru by '#0' and fails
+         * isolation, the explicit barrier will make sure that page_evictable
+         * check will put the page in correct LRU. Without smp_mb(), SetPageLRU
+         * can be reordered after PageMlocked check and can make '#1' to fail
+         * the isolation of the page whose Mlocked bit is cleared (#0 is also
+         * looking at the same page) and the evictable page will be stranded
+         * in an unevictable LRU.
+         */
+        smp_mb();
+
+        if (page_evictable(page)) {
+                lru = page_lru(page);
+                update_page_reclaim_stat(lruvec, page_is_file_cache(page),
+                                         PageActive(page));
+                if (was_unevictable)
+                        count_vm_event(UNEVICTABLE_PGRESCUED);
+        } else {
+                lru = LRU_UNEVICTABLE;
+                ClearPageActive(page);
+                SetPageUnevictable(page);
+                if (!was_unevictable)
+                        count_vm_event(UNEVICTABLE_PGCULLED);
+        }
+
         add_page_to_lru_list(page, lruvec, lru);
-        update_page_reclaim_stat(lruvec, file, active);
         trace_mm_lru_insertion(page, lru);
 }
 
@@ -913,7 +925,7 @@ EXPORT_SYMBOL(__pagevec_lru_add);
  * @pvec:       Where the resulting entries are placed
  * @mapping:    The address_space to search
  * @start:      The starting entry index
- * @nr_pages:   The maximum number of pages
+ * @nr_entries: The maximum number of pages
  * @indices:    The cache indices corresponding to the entries in @pvec
  *
  * pagevec_lookup_entries() will search for and return a group of up
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 673942094328..ebff729cc956 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1943,11 +1943,15 @@ void *vmalloc_exec(unsigned long size)
 }
 
 #if defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA32)
-#define GFP_VMALLOC32 GFP_DMA32 | GFP_KERNEL
+#define GFP_VMALLOC32 (GFP_DMA32 | GFP_KERNEL)
 #elif defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA)
-#define GFP_VMALLOC32 GFP_DMA | GFP_KERNEL
+#define GFP_VMALLOC32 (GFP_DMA | GFP_KERNEL)
 #else
-#define GFP_VMALLOC32 GFP_KERNEL
+/*
+ * 64b systems should always have either DMA or DMA32 zones. For others
+ * GFP_DMA32 should do the right thing and use the normal zone.
+ */
+#define GFP_VMALLOC32 GFP_DMA32 | GFP_KERNEL
 #endif
 
 /**
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 444749669187..cd5dc3faaa57 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -769,64 +769,7 @@ int remove_mapping(struct address_space *mapping, struct page *page)
  */
 void putback_lru_page(struct page *page)
 {
-        bool is_unevictable;
-        int was_unevictable = PageUnevictable(page);
-
-        VM_BUG_ON_PAGE(PageLRU(page), page);
-
-redo:
-        ClearPageUnevictable(page);
-
-        if (page_evictable(page)) {
-                /*
-                 * For evictable pages, we can use the cache.
-                 * In event of a race, worst case is we end up with an
-                 * unevictable page on [in]active list.
-                 * We know how to handle that.
-                 */
-                is_unevictable = false;
-                lru_cache_add(page);
-        } else {
-                /*
-                 * Put unevictable pages directly on zone's unevictable
-                 * list.
-                 */
-                is_unevictable = true;
-                add_page_to_unevictable_list(page);
-                /*
-                 * When racing with an mlock or AS_UNEVICTABLE clearing
-                 * (page is unlocked) make sure that if the other thread
-                 * does not observe our setting of PG_lru and fails
-                 * isolation/check_move_unevictable_pages,
-                 * we see PG_mlocked/AS_UNEVICTABLE cleared below and move
-                 * the page back to the evictable list.
-                 *
-                 * The other side is TestClearPageMlocked() or shmem_lock().
-                 */
-                smp_mb();
-        }
-
-        /*
-         * page's status can change while we move it among lru. If an evictable
-         * page is on unevictable list, it never be freed. To avoid that,
-         * check after we added it to the list, again.
-         */
-        if (is_unevictable && page_evictable(page)) {
-                if (!isolate_lru_page(page)) {
-                        put_page(page);
-                        goto redo;
-                }
-                /* This means someone else dropped this page from LRU
-                 * So, it will be freed or putback to LRU again. There is
-                 * nothing to do here.
-                 */
-        }
-
-        if (was_unevictable && !is_unevictable)
-                count_vm_event(UNEVICTABLE_PGRESCUED);
-        else if (!was_unevictable && is_unevictable)
-                count_vm_event(UNEVICTABLE_PGCULLED);
-
+        lru_cache_add(page);
         put_page(page);         /* drop ref from isolate */
 }
 
@@ -1837,6 +1780,20 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
                 set_bit(PGDAT_WRITEBACK, &pgdat->flags);
 
         /*
+         * If dirty pages are scanned that are not queued for IO, it
+         * implies that flushers are not doing their job. This can
+         * happen when memory pressure pushes dirty pages to the end of
+         * the LRU before the dirty limits are breached and the dirty
+         * data has expired. It can also happen when the proportion of
+         * dirty pages grows not through writes but through memory
+         * pressure reclaiming all the clean cache. And in some cases,
+         * the flushers simply cannot keep up with the allocation
+         * rate. Nudge the flusher threads in case they are asleep.
+         */
+        if (stat.nr_unqueued_dirty == nr_taken)
+                wakeup_flusher_threads(WB_REASON_VMSCAN);
+
+        /*
          * Legacy memcg will stall in page writeback so avoid forcibly
          * stalling here.
          */
@@ -1848,22 +1805,9 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
                 if (stat.nr_dirty && stat.nr_dirty == stat.nr_congested)
                         set_bit(PGDAT_CONGESTED, &pgdat->flags);
 
-                /*
-                 * If dirty pages are scanned that are not queued for IO, it
-                 * implies that flushers are not doing their job. This can
-                 * happen when memory pressure pushes dirty pages to the end of
-                 * the LRU before the dirty limits are breached and the dirty
-                 * data has expired. It can also happen when the proportion of
-                 * dirty pages grows not through writes but through memory
-                 * pressure reclaiming all the clean cache. And in some cases,
-                 * the flushers simply cannot keep up with the allocation
-                 * rate. Nudge the flusher threads in case they are asleep, but
-                 * also allow kswapd to start writing pages during reclaim.
-                 */
-                if (stat.nr_unqueued_dirty == nr_taken) {
-                        wakeup_flusher_threads(WB_REASON_VMSCAN);
+                /* Allow kswapd to start writing pages during reclaim. */
+                if (stat.nr_unqueued_dirty == nr_taken)
                         set_bit(PGDAT_DIRTY, &pgdat->flags);
-                }
 
                 /*
                  * If kswapd scans pages marked marked for immediate
diff --git a/mm/zpool.c b/mm/zpool.c
index f8cb83e7699b..01a771e304fa 100644
--- a/mm/zpool.c
+++ b/mm/zpool.c
@@ -360,7 +360,7 @@ u64 zpool_get_total_size(struct zpool *zpool)
 
 /**
  * zpool_evictable() - Test if zpool is potentially evictable
- * @pool        The zpool to test
+ * @zpool:      The zpool to test
  *
  * Zpool is only potentially evictable when it's created with struct
  * zpool_ops.evict and its driver implements struct zpool_driver.shrink.
diff --git a/mm/zswap.c b/mm/zswap.c
index c004aa4fd3f4..61a5c41972db 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1007,6 +1007,12 @@ static int zswap_frontswap_store(unsigned type, pgoff_t offset,
         u8 *src, *dst;
         struct zswap_header zhdr = { .swpentry = swp_entry(type, offset) };
 
+        /* THP isn't supported */
+        if (PageTransHuge(page)) {
+                ret = -EINVAL;
+                goto reject;
+        }
+
         if (!zswap_enabled || !tree) {
                 ret = -ENODEV;
                 goto reject;
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 64aa9f755e1d..45c9bf5ff3a0 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -48,8 +48,8 @@ bool vlan_do_receive(struct sk_buff **skbp)
                  * original position later
                  */
                 skb_push(skb, offset);
-                skb = *skbp = vlan_insert_tag(skb, skb->vlan_proto,
-                                              skb->vlan_tci);
+                skb = *skbp = vlan_insert_inner_tag(skb, skb->vlan_proto,
+                                                    skb->vlan_tci, skb->mac_len);
                 if (!skb)
                         return false;
                 skb_pull(skb, offset + VLAN_HLEN);
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index f3a4efcf1456..3aa5a93ad107 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -160,7 +160,8 @@ static void req_done(struct virtqueue *vq)
                 spin_unlock_irqrestore(&chan->lock, flags);
                 /* Wakeup if anyone waiting for VirtIO ring space. */
                 wake_up(chan->vc_wq);
-                p9_client_cb(chan->client, req, REQ_STATUS_RCVD);
+                if (len)
+                        p9_client_cb(chan->client, req, REQ_STATUS_RCVD);
         }
 }
 
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 79e326383726..99abeadf416e 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -157,7 +157,7 @@ static void batadv_iv_ogm_orig_free(struct batadv_orig_node *orig_node)
  * Return: 0 on success, a negative error code otherwise.
  */
 static int batadv_iv_ogm_orig_add_if(struct batadv_orig_node *orig_node,
-                                     int max_if_num)
+                                     unsigned int max_if_num)
 {
         void *data_ptr;
         size_t old_size;
@@ -201,7 +201,8 @@ unlock:
  */
 static void
 batadv_iv_ogm_drop_bcast_own_entry(struct batadv_orig_node *orig_node,
-                                   int max_if_num, int del_if_num)
+                                   unsigned int max_if_num,
+                                   unsigned int del_if_num)
 {
         size_t chunk_size;
         size_t if_offset;
@@ -239,7 +240,8 @@ batadv_iv_ogm_drop_bcast_own_entry(struct batadv_orig_node *orig_node,
  */
 static void
 batadv_iv_ogm_drop_bcast_own_sum_entry(struct batadv_orig_node *orig_node,
-                                       int max_if_num, int del_if_num)
+                                       unsigned int max_if_num,
+                                       unsigned int del_if_num)
 {
         size_t if_offset;
         void *data_ptr;
@@ -276,7 +278,8 @@ batadv_iv_ogm_drop_bcast_own_sum_entry(struct batadv_orig_node *orig_node,
  * Return: 0 on success, a negative error code otherwise.
  */
 static int batadv_iv_ogm_orig_del_if(struct batadv_orig_node *orig_node,
-                                     int max_if_num, int del_if_num)
+                                     unsigned int max_if_num,
+                                     unsigned int del_if_num)
 {
         spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
 
@@ -311,7 +314,8 @@ static struct batadv_orig_node *
 batadv_iv_ogm_orig_get(struct batadv_priv *bat_priv, const u8 *addr)
 {
         struct batadv_orig_node *orig_node;
-        int size, hash_added;
+        int hash_added;
+        size_t size;
 
         orig_node = batadv_orig_hash_find(bat_priv, addr);
         if (orig_node)
@@ -893,7 +897,7 @@ batadv_iv_ogm_slide_own_bcast_window(struct batadv_hard_iface *hard_iface)
         u32 i;
         size_t word_index;
         u8 *w;
-        int if_num;
+        unsigned int if_num;
 
         for (i = 0; i < hash->size; i++) {
                 head = &hash->table[i];
@@ -1023,7 +1027,7 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
         struct batadv_neigh_node *tmp_neigh_node = NULL;
         struct batadv_neigh_node *router = NULL;
         struct batadv_orig_node *orig_node_tmp;
-        int if_num;
+        unsigned int if_num;
         u8 sum_orig, sum_neigh;
         u8 *neigh_addr;
         u8 tq_avg;
@@ -1182,7 +1186,7 @@ static bool batadv_iv_ogm_calc_tq(struct batadv_orig_node *orig_node,
         u8 total_count;
         u8 orig_eq_count, neigh_rq_count, neigh_rq_inv, tq_own;
         unsigned int neigh_rq_inv_cube, neigh_rq_max_cube;
-        int if_num;
+        unsigned int if_num;
         unsigned int tq_asym_penalty, inv_asym_penalty;
         unsigned int combined_tq;
         unsigned int tq_iface_penalty;
@@ -1702,9 +1706,9 @@ static void batadv_iv_ogm_process(const struct sk_buff *skb, int ogm_offset,
 
         if (is_my_orig) {
                 unsigned long *word;
-                int offset;
+                size_t offset;
                 s32 bit_pos;
-                s16 if_num;
+                unsigned int if_num;
                 u8 *weight;
 
                 orig_neigh_node = batadv_iv_ogm_orig_get(bat_priv,
@@ -2729,7 +2733,7 @@ static int batadv_iv_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
         struct batadv_neigh_ifinfo *router_ifinfo = NULL;
         struct batadv_neigh_node *router;
         struct batadv_gw_node *curr_gw;
-        int ret = -EINVAL;
+        int ret = 0;
         void *hdr;
 
         router = batadv_orig_router_get(gw_node->orig_node, BATADV_IF_DEFAULT);
diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c
index 27e165ac9302..c74f81341dab 100644
--- a/net/batman-adv/bat_v.c
+++ b/net/batman-adv/bat_v.c
@@ -928,7 +928,7 @@ static int batadv_v_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
         struct batadv_neigh_ifinfo *router_ifinfo = NULL;
         struct batadv_neigh_node *router;
         struct batadv_gw_node *curr_gw;
-        int ret = -EINVAL;
+        int ret = 0;
         void *hdr;
 
         router = batadv_orig_router_get(gw_node->orig_node, BATADV_IF_DEFAULT);
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index fad47853ad3c..b1a08374088b 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -2161,22 +2161,25 @@ batadv_bla_claim_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
 {
         struct batadv_bla_claim *claim;
         int idx = 0;
+        int ret = 0;
 
         rcu_read_lock();
         hlist_for_each_entry_rcu(claim, head, hash_entry) {
                 if (idx++ < *idx_skip)
                         continue;
-                if (batadv_bla_claim_dump_entry(msg, portid, seq,
-                                                primary_if, claim)) {
+
+                ret = batadv_bla_claim_dump_entry(msg, portid, seq,
+                                                  primary_if, claim);
+                if (ret) {
                         *idx_skip = idx - 1;
                         goto unlock;
                 }
         }
 
-        *idx_skip = idx;
+        *idx_skip = 0;
 unlock:
         rcu_read_unlock();
-        return 0;
+        return ret;
 }
 
 /**
@@ -2391,22 +2394,25 @@ batadv_bla_backbone_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
 {
         struct batadv_bla_backbone_gw *backbone_gw;
         int idx = 0;
+        int ret = 0;
 
         rcu_read_lock();
         hlist_for_each_entry_rcu(backbone_gw, head, hash_entry) {
                 if (idx++ < *idx_skip)
                         continue;
-                if (batadv_bla_backbone_dump_entry(msg, portid, seq,
-                                                   primary_if, backbone_gw)) {
+
+                ret = batadv_bla_backbone_dump_entry(msg, portid, seq,
+                                                     primary_if, backbone_gw);
+                if (ret) {
                         *idx_skip = idx - 1;
                         goto unlock;
                 }
         }
 
-        *idx_skip = idx;
+        *idx_skip = 0;
 unlock:
         rcu_read_unlock();
-        return 0;
+        return ret;
 }
 
 /**
diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 9703c791ffc5..87cd962d28d5 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -393,7 +393,7 @@ static void batadv_dbg_arp(struct batadv_priv *bat_priv, struct sk_buff *skb,
                    batadv_arp_hw_src(skb, hdr_size), &ip_src,
                    batadv_arp_hw_dst(skb, hdr_size), &ip_dst);
 
-        if (hdr_size == 0)
+        if (hdr_size < sizeof(struct batadv_unicast_packet))
                 return;
 
         unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index 22dde42fd80e..5afe641ee4b0 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -288,7 +288,8 @@ batadv_frag_merge_packets(struct hlist_head *chain)
         /* Move the existing MAC header to just before the payload. (Override
          * the fragment header.)
          */
-        skb_pull_rcsum(skb_out, hdr_size);
+        skb_pull(skb_out, hdr_size);
+        skb_out->ip_summed = CHECKSUM_NONE;
         memmove(skb_out->data - ETH_HLEN, skb_mac_header(skb_out), ETH_HLEN);
         skb_set_mac_header(skb_out, -ETH_HLEN);
         skb_reset_network_header(skb_out);
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 5f186bff284a..68b54a39c51d 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -763,6 +763,11 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
         hard_iface->soft_iface = soft_iface;
         bat_priv = netdev_priv(hard_iface->soft_iface);
 
+        if (bat_priv->num_ifaces >= UINT_MAX) {
+                ret = -ENOSPC;
+                goto err_dev;
+        }
+
         ret = netdev_master_upper_dev_link(hard_iface->net_dev,
                                            soft_iface, NULL, NULL, NULL);
         if (ret)
@@ -876,7 +881,7 @@ void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,
         batadv_hardif_recalc_extra_skbroom(hard_iface->soft_iface);
 
         /* nobody uses this interface anymore */
-        if (!bat_priv->num_ifaces) {
+        if (bat_priv->num_ifaces == 0) {
                 batadv_gw_check_client_stop(bat_priv);
 
                 if (autodel == BATADV_IF_CLEANUP_AUTO)
@@ -912,7 +917,7 @@ batadv_hardif_add_interface(struct net_device *net_dev)
         if (ret)
                 goto free_if;
 
-        hard_iface->if_num = -1;
+        hard_iface->if_num = 0;
         hard_iface->net_dev = net_dev;
         hard_iface->soft_iface = NULL;
         hard_iface->if_status = BATADV_IF_NOT_IN_USE;
diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index e91f29c7c638..5daa3d50da17 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -24,6 +24,7 @@
 #include <linux/debugfs.h>
 #include <linux/errno.h>
 #include <linux/etherdevice.h>
+#include <linux/eventpoll.h>
 #include <linux/export.h>
 #include <linux/fcntl.h>
 #include <linux/fs.h>
diff --git a/net/batman-adv/log.c b/net/batman-adv/log.c
index dc9fa37ddd14..cdbe0e5e208b 100644
--- a/net/batman-adv/log.c
+++ b/net/batman-adv/log.c
@@ -22,6 +22,7 @@
 #include <linux/compiler.h>
 #include <linux/debugfs.h>
 #include <linux/errno.h>
+#include <linux/eventpoll.h>
 #include <linux/export.h>
 #include <linux/fcntl.h>
 #include <linux/fs.h>
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index cbdeb47ec3f6..d70640135e3a 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -543,8 +543,8 @@ update:
                 bat_priv->mcast.enabled = true;
         }
 
-        return !(mcast_data.flags &
-                 (BATADV_MCAST_WANT_ALL_IPV4 | BATADV_MCAST_WANT_ALL_IPV6));
+        return !(mcast_data.flags & BATADV_MCAST_WANT_ALL_IPV4 &&
+                 mcast_data.flags & BATADV_MCAST_WANT_ALL_IPV6);
 }
 
 /**
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 58a7d9274435..74782426bb77 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -1569,7 +1569,7 @@ int batadv_orig_dump(struct sk_buff *msg, struct netlink_callback *cb)
  * Return: 0 on success or negative error number in case of failure
  */
 int batadv_orig_hash_add_if(struct batadv_hard_iface *hard_iface,
-                            int max_if_num)
+                            unsigned int max_if_num)
 {
         struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
         struct batadv_algo_ops *bao = bat_priv->algo_ops;
@@ -1611,7 +1611,7 @@ err:
  * Return: 0 on success or negative error number in case of failure
  */
 int batadv_orig_hash_del_if(struct batadv_hard_iface *hard_iface,
-                            int max_if_num)
+                            unsigned int max_if_num)
 {
         struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
         struct batadv_hashtable *hash = bat_priv->orig_hash;
diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h
index 8e543a3cdc6c..15d896b2de6f 100644
--- a/net/batman-adv/originator.h
+++ b/net/batman-adv/originator.h
@@ -73,9 +73,9 @@ int batadv_orig_seq_print_text(struct seq_file *seq, void *offset);
 int batadv_orig_dump(struct sk_buff *msg, struct netlink_callback *cb);
 int batadv_orig_hardif_seq_print_text(struct seq_file *seq, void *offset);
 int batadv_orig_hash_add_if(struct batadv_hard_iface *hard_iface,
-                            int max_if_num);
+                            unsigned int max_if_num);
 int batadv_orig_hash_del_if(struct batadv_hard_iface *hard_iface,
-                            int max_if_num);
+                            unsigned int max_if_num);
 struct batadv_orig_node_vlan *
 batadv_orig_node_vlan_new(struct batadv_orig_node *orig_node,
                           unsigned short vid);
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index b6891e8b741c..e61dc1293bb5 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -759,6 +759,7 @@ free_skb:
 /**
  * batadv_reroute_unicast_packet() - update the unicast header for re-routing
  * @bat_priv: the bat priv with all the soft interface information
+ * @skb: unicast packet to process
  * @unicast_packet: the unicast header to be updated
  * @dst_addr: the payload destination
  * @vid: VLAN identifier
@@ -770,7 +771,7 @@ free_skb:
  * Return: true if the packet header has been updated, false otherwise
  */
 static bool
-batadv_reroute_unicast_packet(struct batadv_priv *bat_priv,
+batadv_reroute_unicast_packet(struct batadv_priv *bat_priv, struct sk_buff *skb,
                               struct batadv_unicast_packet *unicast_packet,
                               u8 *dst_addr, unsigned short vid)
 {
@@ -799,8 +800,10 @@ batadv_reroute_unicast_packet(struct batadv_priv *bat_priv,
         }
 
         /* update the packet header */
+        skb_postpull_rcsum(skb, unicast_packet, sizeof(*unicast_packet));
         ether_addr_copy(unicast_packet->dest, orig_addr);
         unicast_packet->ttvn = orig_ttvn;
+        skb_postpush_rcsum(skb, unicast_packet, sizeof(*unicast_packet));
 
         ret = true;
 out:
@@ -841,7 +844,7 @@ static bool batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
          * the packet to
          */
         if (batadv_tt_local_client_is_roaming(bat_priv, ethhdr->h_dest, vid)) {
-                if (batadv_reroute_unicast_packet(bat_priv, unicast_packet,
+                if (batadv_reroute_unicast_packet(bat_priv, skb, unicast_packet,
                                                   ethhdr->h_dest, vid))
                         batadv_dbg_ratelimited(BATADV_DBG_TT,
                                                bat_priv,
@@ -887,7 +890,7 @@ static bool batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
          * destination can possibly be updated and forwarded towards the new
          * target host
          */
-        if (batadv_reroute_unicast_packet(bat_priv, unicast_packet,
+        if (batadv_reroute_unicast_packet(bat_priv, skb, unicast_packet,
                                           ethhdr->h_dest, vid)) {
                 batadv_dbg_ratelimited(BATADV_DBG_TT, bat_priv,
                                        "Rerouting unicast packet to %pM (dst=%pM): TTVN mismatch old_ttvn=%u new_ttvn=%u\n",
@@ -910,12 +913,14 @@ static bool batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
         if (!primary_if)
                 return false;
 
+        /* update the packet header */
+        skb_postpull_rcsum(skb, unicast_packet, sizeof(*unicast_packet));
         ether_addr_copy(unicast_packet->dest, primary_if->net_dev->dev_addr);
+        unicast_packet->ttvn = curr_ttvn;
+        skb_postpush_rcsum(skb, unicast_packet, sizeof(*unicast_packet));
 
         batadv_hardif_put(primary_if);
 
-        unicast_packet->ttvn = curr_ttvn;
-
         return true;
 }
 
@@ -968,14 +973,10 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
         struct batadv_orig_node *orig_node = NULL, *orig_node_gw = NULL;
         int check, hdr_size = sizeof(*unicast_packet);
         enum batadv_subtype subtype;
-        struct ethhdr *ethhdr;
         int ret = NET_RX_DROP;
         bool is4addr, is_gw;
 
         unicast_packet = (struct batadv_unicast_packet *)skb->data;
-        unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;
-        ethhdr = eth_hdr(skb);
-
         is4addr = unicast_packet->packet_type == BATADV_UNICAST_4ADDR;
         /* the caller function should have already pulled 2 bytes */
         if (is4addr)
@@ -995,12 +996,14 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
         if (!batadv_check_unicast_ttvn(bat_priv, skb, hdr_size))
                 goto free_skb;
 
+        unicast_packet = (struct batadv_unicast_packet *)skb->data;
+
         /* packet for me */
         if (batadv_is_my_mac(bat_priv, unicast_packet->dest)) {
                 /* If this is a unicast packet from another backgone gw,
                  * drop it.
                  */
-                orig_addr_gw = ethhdr->h_source;
+                orig_addr_gw = eth_hdr(skb)->h_source;
                 orig_node_gw = batadv_orig_hash_find(bat_priv, orig_addr_gw);
                 if (orig_node_gw) {
                         is_gw = batadv_bla_is_backbone_gw(skb, orig_node_gw,
@@ -1015,6 +1018,8 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
                 }
 
                 if (is4addr) {
+                        unicast_4addr_packet =
+                                (struct batadv_unicast_4addr_packet *)skb->data;
                         subtype = unicast_4addr_packet->subtype;
                         batadv_dat_inc_counter(bat_priv, subtype);
 
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 900c5ce21cd4..367a81fb785f 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -459,13 +459,7 @@ void batadv_interface_rx(struct net_device *soft_iface,
 
         /* skb->dev & skb->pkt_type are set here */
         skb->protocol = eth_type_trans(skb, soft_iface);
-
-        /* should not be necessary anymore as we use skb_pull_rcsum()
-         * TODO: please verify this and remove this TODO
-         * -- Dec 21st 2009, Simon Wunderlich
-         */
-
-        /* skb->ip_summed = CHECKSUM_UNNECESSARY; */
+        skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);
 
         batadv_inc_counter(bat_priv, BATADV_CNT_RX);
         batadv_add_counter(bat_priv, BATADV_CNT_RX_BYTES,
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index bb1578410e0c..a5aa6d61f4e2 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -167,7 +167,7 @@ struct batadv_hard_iface {
         struct list_head list;
 
         /** @if_num: identificator of the interface */
-        s16 if_num;
+        unsigned int if_num;
 
         /** @if_status: status of the interface for batman-adv */
         char if_status;
@@ -1596,7 +1596,7 @@ struct batadv_priv {
         atomic_t batman_queue_left;
 
         /** @num_ifaces: number of interfaces assigned to this mesh interface */
-        char num_ifaces;
+        unsigned int num_ifaces;
 
         /** @mesh_obj: kobject for sysfs mesh subdirectory */
         struct kobject *mesh_obj;
@@ -2186,15 +2186,16 @@ struct batadv_algo_orig_ops {
          *  orig_node due to a new hard-interface being added into the mesh
          *  (optional)
          */
-        int (*add_if)(struct batadv_orig_node *orig_node, int max_if_num);
+        int (*add_if)(struct batadv_orig_node *orig_node,
+                      unsigned int max_if_num);
 
         /**
          * @del_if: ask the routing algorithm to apply the needed changes to the
          *  orig_node due to an hard-interface being removed from the mesh
          *  (optional)
          */
-        int (*del_if)(struct batadv_orig_node *orig_node, int max_if_num,
-                      int del_if_num);
+        int (*del_if)(struct batadv_orig_node *orig_node,
+                      unsigned int max_if_num, unsigned int del_if_num);
 
 #ifdef CONFIG_BATMAN_ADV_DEBUGFS
         /** @print: print the originator table (optional) */
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 01117ae84f1d..a2ddae2f37d7 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -2296,8 +2296,14 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
         else
                 sec_level = authreq_to_seclevel(auth);
 
-        if (smp_sufficient_security(hcon, sec_level, SMP_USE_LTK))
+        if (smp_sufficient_security(hcon, sec_level, SMP_USE_LTK)) {
+                /* If link is already encrypted with sufficient security we
+                 * still need refresh encryption as per Core Spec 5.0 Vol 3,
+                 * Part H 2.4.6
+                 */
+                smp_ltk_encrypt(conn, hcon->sec_level);
                 return 0;
+        }
 
         if (sec_level > hcon->pending_sec_level)
                 hcon->pending_sec_level = sec_level;
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c
index 27f1d4f2114a..9b16eaf33819 100644
--- a/net/bridge/br_netfilter_hooks.c
+++ b/net/bridge/br_netfilter_hooks.c
@@ -214,7 +214,7 @@ static int br_validate_ipv4(struct net *net, struct sk_buff *skb)
 
         iph = ip_hdr(skb);
         if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))
-                goto inhdr_error;
+                goto csum_error;
 
         len = ntohs(iph->tot_len);
         if (skb->len < len) {
@@ -236,6 +236,8 @@ static int br_validate_ipv4(struct net *net, struct sk_buff *skb)
          */
         return 0;
 
+csum_error:
+        __IP_INC_STATS(net, IPSTATS_MIB_CSUMERRORS);
 inhdr_error:
         __IP_INC_STATS(net, IPSTATS_MIB_INHDRERRORS);
 drop:
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 0254c35b2bf0..126a8ea73c96 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -255,6 +255,9 @@ static ssize_t brport_show(struct kobject *kobj,
         struct brport_attribute *brport_attr = to_brport_attr(attr);
         struct net_bridge_port *p = to_brport(kobj);
 
+        if (!brport_attr->show)
+                return -EINVAL;
+
         return brport_attr->show(p, buf);
 }
 
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 51935270c651..9896f4975353 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -168,6 +168,8 @@ static struct net_bridge_vlan *br_vlan_get_master(struct net_bridge *br, u16 vid
                 masterv = br_vlan_find(vg, vid);
                 if (WARN_ON(!masterv))
                         return NULL;
+                refcount_set(&masterv->refcnt, 1);
+                return masterv;
         }
         refcount_inc(&masterv->refcnt);
 
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index 279527f8b1fe..620e54f08296 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -172,32 +172,83 @@ ebt_among_mt(const struct sk_buff *skb, struct xt_action_param *par)
         return true;
 }
 
+static bool poolsize_invalid(const struct ebt_mac_wormhash *w)
+{
+        return w && w->poolsize >= (INT_MAX / sizeof(struct ebt_mac_wormhash_tuple));
+}
+
+static bool wormhash_offset_invalid(int off, unsigned int len)
+{
+        if (off == 0) /* not present */
+                return false;
+
+        if (off < (int)sizeof(struct ebt_among_info) ||
+            off % __alignof__(struct ebt_mac_wormhash))
+                return true;
+
+        off += sizeof(struct ebt_mac_wormhash);
+
+        return off > len;
+}
+
+static bool wormhash_sizes_valid(const struct ebt_mac_wormhash *wh, int a, int b)
+{
+        if (a == 0)
+                a = sizeof(struct ebt_among_info);
+
+        return ebt_mac_wormhash_size(wh) + a == b;
+}
+
 static int ebt_among_mt_check(const struct xt_mtchk_param *par)
 {
         const struct ebt_among_info *info = par->matchinfo;
         const struct ebt_entry_match *em =
                 container_of(par->matchinfo, const struct ebt_entry_match, data);
-        int expected_length = sizeof(struct ebt_among_info);
+        unsigned int expected_length = sizeof(struct ebt_among_info);
         const struct ebt_mac_wormhash *wh_dst, *wh_src;
         int err;
 
+        if (expected_length > em->match_size)
+                return -EINVAL;
+
+        if (wormhash_offset_invalid(info->wh_dst_ofs, em->match_size) ||
+            wormhash_offset_invalid(info->wh_src_ofs, em->match_size))
+                return -EINVAL;
+
         wh_dst = ebt_among_wh_dst(info);
-        wh_src = ebt_among_wh_src(info);
+        if (poolsize_invalid(wh_dst))
+                return -EINVAL;
+
         expected_length += ebt_mac_wormhash_size(wh_dst);
+        if (expected_length > em->match_size)
+                return -EINVAL;
+
+        wh_src = ebt_among_wh_src(info);
+        if (poolsize_invalid(wh_src))
+                return -EINVAL;
+
+        if (info->wh_src_ofs < info->wh_dst_ofs) {
+                if (!wormhash_sizes_valid(wh_src, info->wh_src_ofs, info->wh_dst_ofs))
+                        return -EINVAL;
+        } else {
+                if (!wormhash_sizes_valid(wh_dst, info->wh_dst_ofs, info->wh_src_ofs))
+                        return -EINVAL;
+        }
+
         expected_length += ebt_mac_wormhash_size(wh_src);
 
         if (em->match_size != EBT_ALIGN(expected_length)) {
-                pr_info("wrong size: %d against expected %d, rounded to %zd\n",
-                        em->match_size, expected_length,
-                        EBT_ALIGN(expected_length));
+                pr_err_ratelimited("wrong size: %d against expected %d, rounded to %zd\n",
+                                   em->match_size, expected_length,
+                                   EBT_ALIGN(expected_length));
                 return -EINVAL;
         }
         if (wh_dst && (err = ebt_mac_wormhash_check_integrity(wh_dst))) {
-                pr_info("dst integrity fail: %x\n", -err);
+                pr_err_ratelimited("dst integrity fail: %x\n", -err);
                 return -EINVAL;
         }
         if (wh_src && (err = ebt_mac_wormhash_check_integrity(wh_src))) {
-                pr_info("src integrity fail: %x\n", -err);
+                pr_err_ratelimited("src integrity fail: %x\n", -err);
                 return -EINVAL;
         }
         return 0;
diff --git a/net/bridge/netfilter/ebt_limit.c b/net/bridge/netfilter/ebt_limit.c
index 61a9f1be1263..165b9d678cf1 100644
--- a/net/bridge/netfilter/ebt_limit.c
+++ b/net/bridge/netfilter/ebt_limit.c
@@ -72,8 +72,8 @@ static int ebt_limit_mt_check(const struct xt_mtchk_param *par)
         /* Check for overflow. */
         if (info->burst == 0 ||
             user2credits(info->avg * info->burst) < user2credits(info->avg)) {
-                pr_info("overflow, try lower: %u/%u\n",
-                        info->avg, info->burst);
+                pr_info_ratelimited("overflow, try lower: %u/%u\n",
+                                    info->avg, info->burst);
                 return -EINVAL;
         }
 
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 02c4b409d317..a94d23b0a9af 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1641,7 +1641,8 @@ static int compat_match_to_user(struct ebt_entry_match *m, void __user **dstptr,
         int off = ebt_compat_match_offset(match, m->match_size);
         compat_uint_t msize = m->match_size - off;
 
-        BUG_ON(off >= m->match_size);
+        if (WARN_ON(off >= m->match_size))
+                return -EINVAL;
 
         if (copy_to_user(cm->u.name, match->name,
             strlen(match->name) + 1) || put_user(msize, &cm->match_size))
@@ -1671,7 +1672,8 @@ static int compat_target_to_user(struct ebt_entry_target *t,
         int off = xt_compat_target_offset(target);
         compat_uint_t tsize = t->target_size - off;
 
-        BUG_ON(off >= t->target_size);
+        if (WARN_ON(off >= t->target_size))
+                return -EINVAL;
 
         if (copy_to_user(cm->u.name, target->name,
             strlen(target->name) + 1) || put_user(tsize, &cm->match_size))
@@ -1902,7 +1904,8 @@ static int ebt_buf_add(struct ebt_entries_buf_state *state,
         if (state->buf_kern_start == NULL)
                 goto count_only;
 
-        BUG_ON(state->buf_kern_offset + sz > state->buf_kern_len);
+        if (WARN_ON(state->buf_kern_offset + sz > state->buf_kern_len))
+                return -EINVAL;
 
         memcpy(state->buf_kern_start + state->buf_kern_offset, data, sz);
 
@@ -1915,7 +1918,8 @@ static int ebt_buf_add_pad(struct ebt_entries_buf_state *state, unsigned int sz)
 {
         char *b = state->buf_kern_start;
 
-        BUG_ON(b && state->buf_kern_offset > state->buf_kern_len);
+        if (WARN_ON(b && state->buf_kern_offset > state->buf_kern_len))
+                return -EINVAL;
 
         if (b != NULL && sz > 0)
                 memset(b + state->buf_kern_offset, 0, sz);
@@ -1992,8 +1996,10 @@ static int compat_mtw_from_user(struct compat_ebt_entry_mwt *mwt,
         pad = XT_ALIGN(size_kern) - size_kern;
 
         if (pad > 0 && dst) {
-                BUG_ON(state->buf_kern_len <= pad);
-                BUG_ON(state->buf_kern_offset - (match_size + off) + size_kern > state->buf_kern_len - pad);
+                if (WARN_ON(state->buf_kern_len <= pad))
+                        return -EINVAL;
+                if (WARN_ON(state->buf_kern_offset - (match_size + off) + size_kern > state->buf_kern_len - pad))
+                        return -EINVAL;
                 memset(dst + size_kern, 0, pad);
         }
         return off + match_size;
@@ -2043,7 +2049,8 @@ static int ebt_size_mwt(struct compat_ebt_entry_mwt *match32,
                 if (ret < 0)
                         return ret;
 
-                BUG_ON(ret < match32->match_size);
+                if (WARN_ON(ret < match32->match_size))
+                        return -EINVAL;
                 growth += ret - match32->match_size;
                 growth += ebt_compat_entry_padsize();
 
@@ -2053,7 +2060,9 @@ static int ebt_size_mwt(struct compat_ebt_entry_mwt *match32,
                 if (match_kern)
                         match_kern->match_size = ret;
 
-                WARN_ON(type == EBT_COMPAT_TARGET && size_left);
+                if (WARN_ON(type == EBT_COMPAT_TARGET && size_left))
+                        return -EINVAL;
+
                 match32 = (struct compat_ebt_entry_mwt *) buf;
         }
 
@@ -2109,6 +2118,19 @@ static int size_entry_mwt(struct ebt_entry *entry, const unsigned char *base,
          *
          * offsets are relative to beginning of struct ebt_entry (i.e., 0).
          */
+        for (i = 0; i < 4 ; ++i) {
+                if (offsets[i] > *total)
+                        return -EINVAL;
+
+                if (i < 3 && offsets[i] == *total)
+                        return -EINVAL;
+
+                if (i == 0)
+                        continue;
+                if (offsets[i-1] > offsets[i])
+                        return -EINVAL;
+        }
+
         for (i = 0, j = 1 ; j < 4 ; j++, i++) {
                 struct compat_ebt_entry_mwt *match32;
                 unsigned int size;
@@ -2140,7 +2162,8 @@ static int size_entry_mwt(struct ebt_entry *entry, const unsigned char *base,
 
         startoff = state->buf_user_offset - startoff;
 
-        BUG_ON(*total < startoff);
+        if (WARN_ON(*total < startoff))
+                return -EINVAL;
         *total -= startoff;
         return 0;
 }
@@ -2267,7 +2290,8 @@ static int compat_do_replace(struct net *net, void __user *user,
         state.buf_kern_len = size64;
 
         ret = compat_copy_entries(entries_tmp, tmp.entries_size, &state);
-        BUG_ON(ret < 0);        /* parses same data again */
+        if (WARN_ON(ret < 0))
+                goto out_unlock;
 
         vfree(entries_tmp);
         tmp.entries_size = size64;
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 1e492ef2a33d..4d4c82229e9e 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -418,6 +418,7 @@ ceph_parse_options(char *options, const char *dev_name,
                                 opt->flags |= CEPH_OPT_FSID;
                         break;
                 case Opt_name:
+                        kfree(opt->name);
                         opt->name = kstrndup(argstr[0].from,
                                               argstr[0].to-argstr[0].from,
                                               GFP_KERNEL);
@@ -427,6 +428,9 @@ ceph_parse_options(char *options, const char *dev_name,
                         }
                         break;
                 case Opt_secret:
+                        ceph_crypto_key_destroy(opt->key);
+                        kfree(opt->key);
+
                         opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL);
                         if (!opt->key) {
                                 err = -ENOMEM;
@@ -437,6 +441,9 @@ ceph_parse_options(char *options, const char *dev_name,
                                 goto out;
                         break;
                 case Opt_key:
+                        ceph_crypto_key_destroy(opt->key);
+                        kfree(opt->key);
+
                         opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL);
                         if (!opt->key) {
                                 err = -ENOMEM;
diff --git a/net/core/dev.c b/net/core/dev.c
index dda9d7b9a840..12be20535714 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2382,8 +2382,11 @@ EXPORT_SYMBOL(netdev_set_num_tc);
  */
 int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq)
 {
+        bool disabling;
         int rc;
 
+        disabling = txq < dev->real_num_tx_queues;
+
         if (txq < 1 || txq > dev->num_tx_queues)
                 return -EINVAL;
 
@@ -2399,15 +2402,19 @@ int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq)
                 if (dev->num_tc)
                         netif_setup_tc(dev, txq);
 
-                if (txq < dev->real_num_tx_queues) {
+                dev->real_num_tx_queues = txq;
+
+                if (disabling) {
+                        synchronize_net();
                         qdisc_reset_all_tx_gt(dev, txq);
 #ifdef CONFIG_XPS
                         netif_reset_xps_queues_gt(dev, txq);
 #endif
                 }
+        } else {
+                dev->real_num_tx_queues = txq;
         }
 
-        dev->real_num_tx_queues = txq;
         return 0;
 }
 EXPORT_SYMBOL(netif_set_real_num_tx_queues);
@@ -3271,15 +3278,23 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q,
 #if IS_ENABLED(CONFIG_CGROUP_NET_PRIO)
 static void skb_update_prio(struct sk_buff *skb)
 {
-        struct netprio_map *map = rcu_dereference_bh(skb->dev->priomap);
+        const struct netprio_map *map;
+        const struct sock *sk;
+        unsigned int prioidx;
 
-        if (!skb->priority && skb->sk && map) {
-                unsigned int prioidx =
-                        sock_cgroup_prioidx(&skb->sk->sk_cgrp_data);
+        if (skb->priority)
+                return;
+        map = rcu_dereference_bh(skb->dev->priomap);
+        if (!map)
+                return;
+        sk = skb_to_full_sk(skb);
+        if (!sk)
+                return;
 
-                if (prioidx < map->priomap_len)
-                        skb->priority = map->priomap[prioidx];
-        }
+        prioidx = sock_cgroup_prioidx(&sk->sk_cgrp_data);
+
+        if (prioidx < map->priomap_len)
+                skb->priority = map->priomap[prioidx];
 }
 #else
 #define skb_update_prio(skb)
@@ -6389,6 +6404,7 @@ static int __netdev_upper_dev_link(struct net_device *dev,
                 .linking = true,
                 .upper_info = upper_info,
         };
+        struct net_device *master_dev;
         int ret = 0;
 
         ASSERT_RTNL();
@@ -6400,11 +6416,14 @@ static int __netdev_upper_dev_link(struct net_device *dev,
         if (netdev_has_upper_dev(upper_dev, dev))
                 return -EBUSY;
 
-        if (netdev_has_upper_dev(dev, upper_dev))
-                return -EEXIST;
-
-        if (master && netdev_master_upper_dev_get(dev))
-                return -EBUSY;
+        if (!master) {
+                if (netdev_has_upper_dev(dev, upper_dev))
+                        return -EEXIST;
+        } else {
+                master_dev = netdev_master_upper_dev_get(dev);
+                if (master_dev)
+                        return master_dev == upper_dev ? -EEXIST : -EBUSY;
+        }
 
         ret = call_netdevice_notifiers_info(NETDEV_PRECHANGEUPPER,
                                             &changeupper_info.info);
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
index 0ab1af04296c..a04e1e88bf3a 100644
--- a/net/core/dev_ioctl.c
+++ b/net/core/dev_ioctl.c
@@ -402,8 +402,6 @@ int dev_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr, bool *need_c
         if (colon)
                 *colon = 0;
 
-        dev_load(net, ifr->ifr_name);
-
         /*
          *      See which interface the caller is talking about.
          */
@@ -423,6 +421,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr, bool *need_c
         case SIOCGIFMAP:
         case SIOCGIFINDEX:
         case SIOCGIFTXQLEN:
+                dev_load(net, ifr->ifr_name);
                 rcu_read_lock();
                 ret = dev_ifsioc_locked(net, ifr, cmd);
                 rcu_read_unlock();
@@ -431,6 +430,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr, bool *need_c
                 return ret;
 
         case SIOCETHTOOL:
+                dev_load(net, ifr->ifr_name);
                 rtnl_lock();
                 ret = dev_ethtool(net, ifr);
                 rtnl_unlock();
@@ -447,6 +447,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr, bool *need_c
         case SIOCGMIIPHY:
         case SIOCGMIIREG:
         case SIOCSIFNAME:
+                dev_load(net, ifr->ifr_name);
                 if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
                         return -EPERM;
                 rtnl_lock();
@@ -494,6 +495,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr, bool *need_c
                 /* fall through */
         case SIOCBONDSLAVEINFOQUERY:
         case SIOCBONDINFOQUERY:
+                dev_load(net, ifr->ifr_name);
                 rtnl_lock();
                 ret = dev_ifsioc(net, ifr, cmd);
                 rtnl_unlock();
@@ -518,6 +520,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr, bool *need_c
                     cmd == SIOCGHWTSTAMP ||
                     (cmd >= SIOCDEVPRIVATE &&
                      cmd <= SIOCDEVPRIVATE + 15)) {
+                        dev_load(net, ifr->ifr_name);
                         rtnl_lock();
                         ret = dev_ifsioc(net, ifr, cmd);
                         rtnl_unlock();
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 18d385ed8237..effd4848c2b4 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -1695,10 +1695,11 @@ static int devlink_dpipe_table_put(struct sk_buff *skb,
                 goto nla_put_failure;
 
         if (table->resource_valid) {
-                nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID,
-                                  table->resource_id, DEVLINK_ATTR_PAD);
-                nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS,
-                                  table->resource_units, DEVLINK_ATTR_PAD);
+                if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID,
+                                      table->resource_id, DEVLINK_ATTR_PAD) ||
+                    nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS,
+                                      table->resource_units, DEVLINK_ATTR_PAD))
+                        goto nla_put_failure;
         }
         if (devlink_dpipe_matches_put(table, skb))
                 goto nla_put_failure;
@@ -1797,7 +1798,7 @@ send_done:
         if (!nlh) {
                 err = devlink_dpipe_send_and_alloc_skb(&skb, info);
                 if (err)
-                        goto err_skb_send_alloc;
+                        return err;
                 goto send_done;
         }
 
@@ -1806,7 +1807,6 @@ send_done:
 nla_put_failure:
         err = -EMSGSIZE;
 err_table_put:
-err_skb_send_alloc:
         genlmsg_cancel(skb, hdr);
         nlmsg_free(skb);
         return err;
@@ -2072,7 +2072,7 @@ static int devlink_dpipe_entries_fill(struct genl_info *info,
                                              table->counters_enabled,
                                              &dump_ctx);
         if (err)
-                goto err_entries_dump;
+                return err;
 
 send_done:
         nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq,
@@ -2080,16 +2080,10 @@ send_done:
         if (!nlh) {
                 err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info);
                 if (err)
-                        goto err_skb_send_alloc;
+                        return err;
                 goto send_done;
         }
         return genlmsg_reply(dump_ctx.skb, info);
-
-err_entries_dump:
-err_skb_send_alloc:
-        genlmsg_cancel(dump_ctx.skb, dump_ctx.hdr);
-        nlmsg_free(dump_ctx.skb);
-        return err;
 }
 
 static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb,
@@ -2228,7 +2222,7 @@ send_done:
         if (!nlh) {
                 err = devlink_dpipe_send_and_alloc_skb(&skb, info);
                 if (err)
-                        goto err_skb_send_alloc;
+                        return err;
                 goto send_done;
         }
         return genlmsg_reply(skb, info);
@@ -2236,7 +2230,6 @@ send_done:
 nla_put_failure:
         err = -EMSGSIZE;
 err_table_put:
-err_skb_send_alloc:
         genlmsg_cancel(skb, hdr);
         nlmsg_free(skb);
         return err;
@@ -2332,7 +2325,7 @@ devlink_resource_validate_children(struct devlink_resource *resource)
         list_for_each_entry(child_resource, &resource->resource_list, list)
                 parts_size += child_resource->size_new;
 
-        if (parts_size > resource->size)
+        if (parts_size > resource->size_new)
                 size_valid = false;
 out:
         resource->size_valid = size_valid;
@@ -2372,20 +2365,22 @@ static int devlink_nl_cmd_resource_set(struct sk_buff *skb,
         return 0;
 }
 
-static void
+static int
 devlink_resource_size_params_put(struct devlink_resource *resource,
                                  struct sk_buff *skb)
 {
         struct devlink_resource_size_params *size_params;
 
-        size_params = resource->size_params;
-        nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN,
-                          size_params->size_granularity, DEVLINK_ATTR_PAD);
-        nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX,
-                          size_params->size_max, DEVLINK_ATTR_PAD);
-        nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN,
-                          size_params->size_min, DEVLINK_ATTR_PAD);
-        nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit);
+        size_params = &resource->size_params;
+        if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN,
+                              size_params->size_granularity, DEVLINK_ATTR_PAD) ||
+            nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX,
+                              size_params->size_max, DEVLINK_ATTR_PAD) ||
+            nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN,
+                              size_params->size_min, DEVLINK_ATTR_PAD) ||
+            nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit))
+                return -EMSGSIZE;
+        return 0;
 }
 
 static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb,
@@ -2409,10 +2404,12 @@ static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb,
                 nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW,
                                   resource->size_new, DEVLINK_ATTR_PAD);
         if (resource->resource_ops && resource->resource_ops->occ_get)
-                nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC,
-                                  resource->resource_ops->occ_get(devlink),
-                                  DEVLINK_ATTR_PAD);
-        devlink_resource_size_params_put(resource, skb);
+                if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC,
+                                      resource->resource_ops->occ_get(devlink),
+                                      DEVLINK_ATTR_PAD))
+                        goto nla_put_failure;
+        if (devlink_resource_size_params_put(resource, skb))
+                goto nla_put_failure;
         if (list_empty(&resource->resource_list))
                 goto out;
 
@@ -3151,7 +3148,7 @@ int devlink_resource_register(struct devlink *devlink,
                               u64 resource_size,
                               u64 resource_id,
                               u64 parent_resource_id,
-                              struct devlink_resource_size_params *size_params,
+                              const struct devlink_resource_size_params *size_params,
                               const struct devlink_resource_ops *resource_ops)
 {
         struct devlink_resource *resource;
@@ -3194,7 +3191,8 @@ int devlink_resource_register(struct devlink *devlink,
         resource->id = resource_id;
         resource->resource_ops = resource_ops;
         resource->size_valid = true;
-        resource->size_params = size_params;
+        memcpy(&resource->size_params, size_params,
+               sizeof(resource->size_params));
         INIT_LIST_HEAD(&resource->resource_list);
         list_add_tail(&resource->list, resource_list);
 out:
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 494e6a5d7306..3f89c76d5c24 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -2520,11 +2520,14 @@ static int set_phy_tunable(struct net_device *dev, void __user *useraddr)
 static int ethtool_get_fecparam(struct net_device *dev, void __user *useraddr)
 {
         struct ethtool_fecparam fecparam = { ETHTOOL_GFECPARAM };
+        int rc;
 
         if (!dev->ethtool_ops->get_fecparam)
                 return -EOPNOTSUPP;
 
-        dev->ethtool_ops->get_fecparam(dev, &fecparam);
+        rc = dev->ethtool_ops->get_fecparam(dev, &fecparam);
+        if (rc)
+                return rc;
 
         if (copy_to_user(useraddr, &fecparam, sizeof(fecparam)))
                 return -EFAULT;
diff --git a/net/core/filter.c b/net/core/filter.c
index 08ab4c65a998..48aa7c7320db 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2087,6 +2087,10 @@ static int bpf_skb_proto_4_to_6(struct sk_buff *skb)
         u32 off = skb_mac_header_len(skb);
         int ret;
 
+        /* SCTP uses GSO_BY_FRAGS, thus cannot adjust it. */
+        if (skb_is_gso(skb) && unlikely(skb_is_gso_sctp(skb)))
+                return -ENOTSUPP;
+
         ret = skb_cow(skb, len_diff);
         if (unlikely(ret < 0))
                 return ret;
@@ -2096,19 +2100,21 @@ static int bpf_skb_proto_4_to_6(struct sk_buff *skb)
                 return ret;
 
         if (skb_is_gso(skb)) {
+                struct skb_shared_info *shinfo = skb_shinfo(skb);
+
                 /* SKB_GSO_TCPV4 needs to be changed into
                  * SKB_GSO_TCPV6.
                  */
-                if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4) {
-                        skb_shinfo(skb)->gso_type &= ~SKB_GSO_TCPV4;
-                        skb_shinfo(skb)->gso_type |=  SKB_GSO_TCPV6;
+                if (shinfo->gso_type & SKB_GSO_TCPV4) {
+                        shinfo->gso_type &= ~SKB_GSO_TCPV4;
+                        shinfo->gso_type |=  SKB_GSO_TCPV6;
                 }
 
                 /* Due to IPv6 header, MSS needs to be downgraded. */
-                skb_shinfo(skb)->gso_size -= len_diff;
+                skb_decrease_gso_size(shinfo, len_diff);
                 /* Header must be checked, and gso_segs recomputed. */
-                skb_shinfo(skb)->gso_type |= SKB_GSO_DODGY;
-                skb_shinfo(skb)->gso_segs = 0;
+                shinfo->gso_type |= SKB_GSO_DODGY;
+                shinfo->gso_segs = 0;
         }
 
         skb->protocol = htons(ETH_P_IPV6);
@@ -2123,6 +2129,10 @@ static int bpf_skb_proto_6_to_4(struct sk_buff *skb)
         u32 off = skb_mac_header_len(skb);
         int ret;
 
+        /* SCTP uses GSO_BY_FRAGS, thus cannot adjust it. */
+        if (skb_is_gso(skb) && unlikely(skb_is_gso_sctp(skb)))
+                return -ENOTSUPP;
+
         ret = skb_unclone(skb, GFP_ATOMIC);
         if (unlikely(ret < 0))
                 return ret;
@@ -2132,19 +2142,21 @@ static int bpf_skb_proto_6_to_4(struct sk_buff *skb)
                 return ret;
 
         if (skb_is_gso(skb)) {
+                struct skb_shared_info *shinfo = skb_shinfo(skb);
+
                 /* SKB_GSO_TCPV6 needs to be changed into
                  * SKB_GSO_TCPV4.
                  */
-                if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) {
-                        skb_shinfo(skb)->gso_type &= ~SKB_GSO_TCPV6;
-                        skb_shinfo(skb)->gso_type |=  SKB_GSO_TCPV4;
+                if (shinfo->gso_type & SKB_GSO_TCPV6) {
+                        shinfo->gso_type &= ~SKB_GSO_TCPV6;
+                        shinfo->gso_type |=  SKB_GSO_TCPV4;
                 }
 
                 /* Due to IPv4 header, MSS can be upgraded. */
-                skb_shinfo(skb)->gso_size += len_diff;
+                skb_increase_gso_size(shinfo, len_diff);
                 /* Header must be checked, and gso_segs recomputed. */
-                skb_shinfo(skb)->gso_type |= SKB_GSO_DODGY;
-                skb_shinfo(skb)->gso_segs = 0;
+                shinfo->gso_type |= SKB_GSO_DODGY;
+                shinfo->gso_segs = 0;
         }
 
         skb->protocol = htons(ETH_P_IP);
@@ -2243,6 +2255,10 @@ static int bpf_skb_net_grow(struct sk_buff *skb, u32 len_diff)
         u32 off = skb_mac_header_len(skb) + bpf_skb_net_base_len(skb);
         int ret;
 
+        /* SCTP uses GSO_BY_FRAGS, thus cannot adjust it. */
+        if (skb_is_gso(skb) && unlikely(skb_is_gso_sctp(skb)))
+                return -ENOTSUPP;
+
         ret = skb_cow(skb, len_diff);
         if (unlikely(ret < 0))
                 return ret;
@@ -2252,11 +2268,13 @@ static int bpf_skb_net_grow(struct sk_buff *skb, u32 len_diff)
                 return ret;
 
         if (skb_is_gso(skb)) {
+                struct skb_shared_info *shinfo = skb_shinfo(skb);
+
                 /* Due to header grow, MSS needs to be downgraded. */
-                skb_shinfo(skb)->gso_size -= len_diff;
+                skb_decrease_gso_size(shinfo, len_diff);
                 /* Header must be checked, and gso_segs recomputed. */
-                skb_shinfo(skb)->gso_type |= SKB_GSO_DODGY;
-                skb_shinfo(skb)->gso_segs = 0;
+                shinfo->gso_type |= SKB_GSO_DODGY;
+                shinfo->gso_segs = 0;
         }
 
         return 0;
@@ -2267,6 +2285,10 @@ static int bpf_skb_net_shrink(struct sk_buff *skb, u32 len_diff)
         u32 off = skb_mac_header_len(skb) + bpf_skb_net_base_len(skb);
         int ret;
 
+        /* SCTP uses GSO_BY_FRAGS, thus cannot adjust it. */
+        if (skb_is_gso(skb) && unlikely(skb_is_gso_sctp(skb)))
+                return -ENOTSUPP;
+
         ret = skb_unclone(skb, GFP_ATOMIC);
         if (unlikely(ret < 0))
                 return ret;
@@ -2276,11 +2298,13 @@ static int bpf_skb_net_shrink(struct sk_buff *skb, u32 len_diff)
                 return ret;
 
         if (skb_is_gso(skb)) {
+                struct skb_shared_info *shinfo = skb_shinfo(skb);
+
                 /* Due to header shrink, MSS can be upgraded. */
-                skb_shinfo(skb)->gso_size += len_diff;
+                skb_increase_gso_size(shinfo, len_diff);
                 /* Header must be checked, and gso_segs recomputed. */
-                skb_shinfo(skb)->gso_type |= SKB_GSO_DODGY;
-                skb_shinfo(skb)->gso_segs = 0;
+                shinfo->gso_type |= SKB_GSO_DODGY;
+                shinfo->gso_segs = 0;
         }
 
         return 0;
@@ -3381,17 +3405,13 @@ BPF_CALL_2(bpf_sock_ops_cb_flags_set, struct bpf_sock_ops_kern *, bpf_sock,
         struct sock *sk = bpf_sock->sk;
         int val = argval & BPF_SOCK_OPS_ALL_CB_FLAGS;
 
-        if (!sk_fullsock(sk))
+        if (!IS_ENABLED(CONFIG_INET) || !sk_fullsock(sk))
                 return -EINVAL;
 
-#ifdef CONFIG_INET
         if (val)
                 tcp_sk(sk)->bpf_sock_ops_cb_flags = val;
 
         return argval & (~BPF_SOCK_OPS_ALL_CB_FLAGS);
-#else
-        return -EINVAL;
-#endif
 }
 
 static const struct bpf_func_proto bpf_sock_ops_cb_flags_set_proto = {
diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c
index 0a3f88f08727..98fd12721221 100644
--- a/net/core/gen_estimator.c
+++ b/net/core/gen_estimator.c
@@ -66,6 +66,7 @@ struct net_rate_estimator {
 static void est_fetch_counters(struct net_rate_estimator *e,
                                struct gnet_stats_basic_packed *b)
 {
+        memset(b, 0, sizeof(*b));
         if (e->stats_lock)
                 spin_lock(e->stats_lock);
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 09bd89c90a71..1e7acdc30732 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4179,7 +4179,7 @@ int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
 
         skb_queue_tail(&sk->sk_error_queue, skb);
         if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk);
+                sk->sk_error_report(sk);
         return 0;
 }
 EXPORT_SYMBOL(sock_queue_err_skb);
@@ -4891,7 +4891,7 @@ EXPORT_SYMBOL_GPL(skb_scrub_packet);
  *
  * The MAC/L2 or network (IP, IPv6) headers are not accounted for.
  */
-unsigned int skb_gso_transport_seglen(const struct sk_buff *skb)
+static unsigned int skb_gso_transport_seglen(const struct sk_buff *skb)
 {
         const struct skb_shared_info *shinfo = skb_shinfo(skb);
         unsigned int thlen = 0;
@@ -4904,7 +4904,7 @@ unsigned int skb_gso_transport_seglen(const struct sk_buff *skb)
                         thlen += inner_tcp_hdrlen(skb);
         } else if (likely(shinfo->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))) {
                 thlen = tcp_hdrlen(skb);
-        } else if (unlikely(shinfo->gso_type & SKB_GSO_SCTP)) {
+        } else if (unlikely(skb_is_gso_sctp(skb))) {
                 thlen = sizeof(struct sctphdr);
         }
         /* UFO sets gso_size to the size of the fragmentation
@@ -4913,7 +4913,40 @@ unsigned int skb_gso_transport_seglen(const struct sk_buff *skb)
          */
         return thlen + shinfo->gso_size;
 }
-EXPORT_SYMBOL_GPL(skb_gso_transport_seglen);
+
+/**
+ * skb_gso_network_seglen - Return length of individual segments of a gso packet
+ *
+ * @skb: GSO skb
+ *
+ * skb_gso_network_seglen is used to determine the real size of the
+ * individual segments, including Layer3 (IP, IPv6) and L4 headers (TCP/UDP).
+ *
+ * The MAC/L2 header is not accounted for.
+ */
+static unsigned int skb_gso_network_seglen(const struct sk_buff *skb)
+{
+        unsigned int hdr_len = skb_transport_header(skb) -
+                               skb_network_header(skb);
+
+        return hdr_len + skb_gso_transport_seglen(skb);
+}
+
+/**
+ * skb_gso_mac_seglen - Return length of individual segments of a gso packet
+ *
+ * @skb: GSO skb
+ *
+ * skb_gso_mac_seglen is used to determine the real size of the
+ * individual segments, including MAC/L2, Layer3 (IP, IPv6) and L4
+ * headers (TCP/UDP).
+ */
+static unsigned int skb_gso_mac_seglen(const struct sk_buff *skb)
+{
+        unsigned int hdr_len = skb_transport_header(skb) - skb_mac_header(skb);
+
+        return hdr_len + skb_gso_transport_seglen(skb);
+}
 
 /**
  * skb_gso_size_check - check the skb size, considering GSO_BY_FRAGS
@@ -4955,19 +4988,20 @@ static inline bool skb_gso_size_check(const struct sk_buff *skb,
 }
 
 /**
- * skb_gso_validate_mtu - Return in case such skb fits a given MTU
+ * skb_gso_validate_network_len - Will a split GSO skb fit into a given MTU?
  *
  * @skb: GSO skb
  * @mtu: MTU to validate against
  *
- * skb_gso_validate_mtu validates if a given skb will fit a wanted MTU
- * once split.
+ * skb_gso_validate_network_len validates if a given skb will fit a
+ * wanted MTU once split. It considers L3 headers, L4 headers, and the
+ * payload.
  */
-bool skb_gso_validate_mtu(const struct sk_buff *skb, unsigned int mtu)
+bool skb_gso_validate_network_len(const struct sk_buff *skb, unsigned int mtu)
 {
         return skb_gso_size_check(skb, skb_gso_network_seglen(skb), mtu);
 }
-EXPORT_SYMBOL_GPL(skb_gso_validate_mtu);
+EXPORT_SYMBOL_GPL(skb_gso_validate_network_len);
 
 /**
  * skb_gso_validate_mac_len - Will a split GSO skb fit in a given length?
@@ -4986,13 +5020,16 @@ EXPORT_SYMBOL_GPL(skb_gso_validate_mac_len);
 
 static struct sk_buff *skb_reorder_vlan_header(struct sk_buff *skb)
 {
+        int mac_len;
+
         if (skb_cow(skb, skb_headroom(skb)) < 0) {
                 kfree_skb(skb);
                 return NULL;
         }
 
-        memmove(skb->data - ETH_HLEN, skb->data - skb->mac_len - VLAN_HLEN,
-                2 * ETH_ALEN);
+        mac_len = skb->data - skb_mac_header(skb);
+        memmove(skb_mac_header(skb) + VLAN_HLEN, skb_mac_header(skb),
+                mac_len - VLAN_HLEN - ETH_TLEN);
         skb->mac_header += VLAN_HLEN;
         return skb;
 }
diff --git a/net/core/sock.c b/net/core/sock.c
index c501499a04fe..85b0b64e7f9d 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -3261,6 +3261,27 @@ void proto_unregister(struct proto *prot)
 }
 EXPORT_SYMBOL(proto_unregister);
 
+int sock_load_diag_module(int family, int protocol)
+{
+        if (!protocol) {
+                if (!sock_is_registered(family))
+                        return -ENOENT;
+
+                return request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
+                                      NETLINK_SOCK_DIAG, family);
+        }
+
+#ifdef CONFIG_INET
+        if (family == AF_INET &&
+            !rcu_access_pointer(inet_protos[protocol]))
+                return -ENOENT;
+#endif
+
+        return request_module("net-pf-%d-proto-%d-type-%d-%d", PF_NETLINK,
+                              NETLINK_SOCK_DIAG, family, protocol);
+}
+EXPORT_SYMBOL(sock_load_diag_module);
+
 #ifdef CONFIG_PROC_FS
 static void *proto_seq_start(struct seq_file *seq, loff_t *pos)
         __acquires(proto_list_mutex)
diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index 146b50e30659..c37b5be7c5e4 100644
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -220,8 +220,7 @@ static int __sock_diag_cmd(struct sk_buff *skb, struct nlmsghdr *nlh)
                 return -EINVAL;
 
         if (sock_diag_handlers[req->sdiag_family] == NULL)
-                request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
-                                NETLINK_SOCK_DIAG, req->sdiag_family);
+                sock_load_diag_module(req->sdiag_family, 0);
 
         mutex_lock(&sock_diag_table_mutex);
         hndl = sock_diag_handlers[req->sdiag_family];
@@ -247,8 +246,7 @@ static int sock_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
         case TCPDIAG_GETSOCK:
         case DCCPDIAG_GETSOCK:
                 if (inet_rcv_compat == NULL)
-                        request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
-                                        NETLINK_SOCK_DIAG, AF_INET);
+                        sock_load_diag_module(AF_INET, 0);
 
                 mutex_lock(&sock_diag_table_mutex);
                 if (inet_rcv_compat != NULL)
@@ -281,14 +279,12 @@ static int sock_diag_bind(struct net *net, int group)
         case SKNLGRP_INET_TCP_DESTROY:
         case SKNLGRP_INET_UDP_DESTROY:
                 if (!sock_diag_handlers[AF_INET])
-                        request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
-                                       NETLINK_SOCK_DIAG, AF_INET);
+                        sock_load_diag_module(AF_INET, 0);
                 break;
         case SKNLGRP_INET6_TCP_DESTROY:
         case SKNLGRP_INET6_UDP_DESTROY:
                 if (!sock_diag_handlers[AF_INET6])
-                        request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
-                                       NETLINK_SOCK_DIAG, AF_INET6);
+                        sock_load_diag_module(AF_INET6, 0);
                 break;
         }
         return 0;
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 15bdc002d90c..84cd4e3fd01b 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -794,6 +794,11 @@ int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
         if (skb == NULL)
                 goto out_release;
 
+        if (sk->sk_state == DCCP_CLOSED) {
+                rc = -ENOTCONN;
+                goto out_discard;
+        }
+
         skb_reserve(skb, sk->sk_prot->max_header);
         rc = memcpy_from_msg(skb_put(skb, len), msg, len);
         if (rc != 0)
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 91dd09f79808..791aff68af88 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1338,6 +1338,12 @@ static int dn_setsockopt(struct socket *sock, int level, int optname, char __use
         lock_sock(sk);
         err = __dn_setsockopt(sock, level, optname, optval, optlen, 0);
         release_sock(sk);
+#ifdef CONFIG_NETFILTER
+        /* we need to exclude all possible ENOPROTOOPTs except default case */
+        if (err == -ENOPROTOOPT && optname != DSO_LINKINFO &&
+            optname != DSO_STREAM && optname != DSO_SEQPACKET)
+                err = nf_setsockopt(sk, PF_DECnet, optname, optval, optlen);
+#endif
 
         return err;
 }
@@ -1445,15 +1451,6 @@ static int __dn_setsockopt(struct socket *sock, int level,int optname, char __us
                 dn_nsp_send_disc(sk, 0x38, 0, sk->sk_allocation);
                 break;
 
-        default:
-#ifdef CONFIG_NETFILTER
-                return nf_setsockopt(sk, PF_DECnet, optname, optval, optlen);
-#endif
-        case DSO_LINKINFO:
-        case DSO_STREAM:
-        case DSO_SEQPACKET:
-                return -ENOPROTOOPT;
-
         case DSO_MAXWINDOW:
                 if (optlen != sizeof(unsigned long))
                         return -EINVAL;
@@ -1501,6 +1498,12 @@ static int __dn_setsockopt(struct socket *sock, int level,int optname, char __us
                         return -EINVAL;
                 scp->info_loc = u.info;
                 break;
+
+        case DSO_LINKINFO:
+        case DSO_STREAM:
+        case DSO_SEQPACKET:
+        default:
+                return -ENOPROTOOPT;
         }
 
         return 0;
@@ -1514,6 +1517,20 @@ static int dn_getsockopt(struct socket *sock, int level, int optname, char __use
         lock_sock(sk);
         err = __dn_getsockopt(sock, level, optname, optval, optlen, 0);
         release_sock(sk);
+#ifdef CONFIG_NETFILTER
+        if (err == -ENOPROTOOPT && optname != DSO_STREAM &&
+            optname != DSO_SEQPACKET && optname != DSO_CONACCEPT &&
+            optname != DSO_CONREJECT) {
+                int len;
+
+                if (get_user(len, optlen))
+                        return -EFAULT;
+
+                err = nf_getsockopt(sk, PF_DECnet, optname, optval, &len);
+                if (err >= 0)
+                        err = put_user(len, optlen);
+        }
+#endif
 
         return err;
 }
@@ -1579,26 +1596,6 @@ static int __dn_getsockopt(struct socket *sock, int level,int optname, char __us
                 r_data = &link;
                 break;
 
-        default:
-#ifdef CONFIG_NETFILTER
-        {
-                int ret, len;
-
-                if (get_user(len, optlen))
-                        return -EFAULT;
-
-                ret = nf_getsockopt(sk, PF_DECnet, optname, optval, &len);
-                if (ret >= 0)
-                        ret = put_user(len, optlen);
-                return ret;
-        }
-#endif
-        case DSO_STREAM:
-        case DSO_SEQPACKET:
-        case DSO_CONACCEPT:
-        case DSO_CONREJECT:
-                return -ENOPROTOOPT;
-
         case DSO_MAXWINDOW:
                 if (r_len > sizeof(unsigned long))
                         r_len = sizeof(unsigned long);
@@ -1630,6 +1627,13 @@ static int __dn_getsockopt(struct socket *sock, int level,int optname, char __us
                         r_len = sizeof(unsigned char);
                 r_data = &scp->info_rem;
                 break;
+
+        case DSO_STREAM:
+        case DSO_SEQPACKET:
+        case DSO_CONACCEPT:
+        case DSO_CONREJECT:
+        default:
+                return -ENOPROTOOPT;
         }
 
         if (r_data) {
diff --git a/net/dsa/legacy.c b/net/dsa/legacy.c
index cb54b81d0bd9..42a7b85b84e1 100644
--- a/net/dsa/legacy.c
+++ b/net/dsa/legacy.c
@@ -194,7 +194,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds,
                 ds->ports[i].dn = cd->port_dn[i];
                 ds->ports[i].cpu_dp = dst->cpu_dp;
 
-                if (dsa_is_user_port(ds, i))
+                if (!dsa_is_user_port(ds, i))
                         continue;
 
                 ret = dsa_slave_create(&ds->ports[i]);
diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c
index 974765b7d92a..e9f0489e4229 100644
--- a/net/ieee802154/6lowpan/core.c
+++ b/net/ieee802154/6lowpan/core.c
@@ -206,9 +206,13 @@ static inline void lowpan_netlink_fini(void)
 static int lowpan_device_event(struct notifier_block *unused,
                                unsigned long event, void *ptr)
 {
-        struct net_device *wdev = netdev_notifier_info_to_dev(ptr);
+        struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
+        struct wpan_dev *wpan_dev;
 
-        if (wdev->type != ARPHRD_IEEE802154)
+        if (ndev->type != ARPHRD_IEEE802154)
+                return NOTIFY_DONE;
+        wpan_dev = ndev->ieee802154_ptr;
+        if (!wpan_dev)
                 return NOTIFY_DONE;
 
         switch (event) {
@@ -217,8 +221,8 @@ static int lowpan_device_event(struct notifier_block *unused,
                  * also delete possible lowpan interfaces which belongs
                  * to the wpan interface.
                  */
-                if (wdev->ieee802154_ptr->lowpan_dev)
-                        lowpan_dellink(wdev->ieee802154_ptr->lowpan_dev, NULL);
+                if (wpan_dev->lowpan_dev)
+                        lowpan_dellink(wpan_dev->lowpan_dev, NULL);
                 break;
         default:
                 return NOTIFY_DONE;
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index c586597da20d..7d36a950d961 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -646,6 +646,11 @@ int fib_nh_match(struct fib_config *cfg, struct fib_info *fi,
                                             fi->fib_nh, cfg, extack))
                                 return 1;
                 }
+#ifdef CONFIG_IP_ROUTE_CLASSID
+                if (cfg->fc_flow &&
+                    cfg->fc_flow != fi->fib_nh->nh_tclassid)
+                        return 1;
+#endif
                 if ((!cfg->fc_oif || cfg->fc_oif == fi->fib_nh->nh_oif) &&
                     (!cfg->fc_gw  || cfg->fc_gw == fi->fib_nh->nh_gw))
                         return 0;
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index a383f299ce24..4e5bc4b2f14e 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -53,8 +53,7 @@ static DEFINE_MUTEX(inet_diag_table_mutex);
 static const struct inet_diag_handler *inet_diag_lock_handler(int proto)
 {
         if (!inet_diag_table[proto])
-                request_module("net-pf-%d-proto-%d-type-%d-%d", PF_NETLINK,
-                               NETLINK_SOCK_DIAG, AF_INET, proto);
+                sock_load_diag_module(AF_INET, proto);
 
         mutex_lock(&inet_diag_table_mutex);
         if (!inet_diag_table[proto])
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 26a3d0315728..e8ec28999f5c 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -119,6 +119,9 @@ out:
 
 static bool inet_fragq_should_evict(const struct inet_frag_queue *q)
 {
+        if (!hlist_unhashed(&q->list_evictor))
+                return false;
+
         return q->net->low_thresh == 0 ||
                frag_mem_limit(q->net) >= q->net->low_thresh;
 }
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index 2dd21c3281a1..b54b948b0596 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -55,7 +55,7 @@ static bool ip_exceeds_mtu(const struct sk_buff *skb, unsigned int mtu)
         if (skb->ignore_df)
                 return false;
 
-        if (skb_is_gso(skb) && skb_gso_validate_mtu(skb, mtu))
+        if (skb_is_gso(skb) && skb_gso_validate_network_len(skb, mtu))
                 return false;
 
         return true;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 45d97e9b2759..0901de42ed85 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -970,9 +970,6 @@ static void __gre_tunnel_init(struct net_device *dev)
 
         t_hlen = tunnel->hlen + sizeof(struct iphdr);
 
-        dev->needed_headroom    = LL_MAX_HEADER + t_hlen + 4;
-        dev->mtu                = ETH_DATA_LEN - t_hlen - 4;
-
         dev->features           |= GRE_FEATURES;
         dev->hw_features        |= GRE_FEATURES;
 
@@ -1290,8 +1287,6 @@ static int erspan_tunnel_init(struct net_device *dev)
                        erspan_hdr_len(tunnel->erspan_ver);
         t_hlen = tunnel->hlen + sizeof(struct iphdr);
 
-        dev->needed_headroom = LL_MAX_HEADER + t_hlen + 4;
-        dev->mtu = ETH_DATA_LEN - t_hlen - 4;
         dev->features           |= GRE_FEATURES;
         dev->hw_features        |= GRE_FEATURES;
         dev->priv_flags         |= IFF_LIVE_ADDR_CHANGE;
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index e8e675be60ec..66340ab750e6 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -248,7 +248,7 @@ static int ip_finish_output_gso(struct net *net, struct sock *sk,
 
         /* common case: seglen is <= mtu
          */
-        if (skb_gso_validate_mtu(skb, mtu))
+        if (skb_gso_validate_network_len(skb, mtu))
                 return ip_finish_output2(net, sk, skb);
 
         /* Slowpath -  GSO segment length exceeds the egress MTU.
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 008be04ac1cc..74c962b9b09c 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -258,7 +258,8 @@ int ip_cmsg_send(struct sock *sk, struct msghdr *msg, struct ipcm_cookie *ipc,
                         src_info = (struct in6_pktinfo *)CMSG_DATA(cmsg);
                         if (!ipv6_addr_v4mapped(&src_info->ipi6_addr))
                                 return -EINVAL;
-                        ipc->oif = src_info->ipi6_ifindex;
+                        if (src_info->ipi6_ifindex)
+                                ipc->oif = src_info->ipi6_ifindex;
                         ipc->addr = src_info->ipi6_addr.s6_addr32[3];
                         continue;
                 }
@@ -288,7 +289,8 @@ int ip_cmsg_send(struct sock *sk, struct msghdr *msg, struct ipcm_cookie *ipc,
                         if (cmsg->cmsg_len != CMSG_LEN(sizeof(struct in_pktinfo)))
                                 return -EINVAL;
                         info = (struct in_pktinfo *)CMSG_DATA(cmsg);
-                        ipc->oif = info->ipi_ifindex;
+                        if (info->ipi_ifindex)
+                                ipc->oif = info->ipi_ifindex;
                         ipc->addr = info->ipi_spec_dst.s_addr;
                         break;
                 }
@@ -1567,10 +1569,7 @@ int ip_getsockopt(struct sock *sk, int level,
                 if (get_user(len, optlen))
                         return -EFAULT;
 
-                lock_sock(sk);
-                err = nf_getsockopt(sk, PF_INET, optname, optval,
-                                &len);
-                release_sock(sk);
+                err = nf_getsockopt(sk, PF_INET, optname, optval, &len);
                 if (err >= 0)
                         err = put_user(len, optlen);
                 return err;
@@ -1602,9 +1601,7 @@ int compat_ip_getsockopt(struct sock *sk, int level, int optname,
                 if (get_user(len, optlen))
                         return -EFAULT;
 
-                lock_sock(sk);
                 err = compat_nf_getsockopt(sk, PF_INET, optname, optval, &len);
-                release_sock(sk);
                 if (err >= 0)
                         err = put_user(len, optlen);
                 return err;
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index d786a8441bce..6d21068f9b55 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -710,16 +710,9 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
                 }
         }
 
-        if (tunnel->fwmark) {
-                init_tunnel_flow(&fl4, protocol, dst, tnl_params->saddr,
-                                 tunnel->parms.o_key, RT_TOS(tos), tunnel->parms.link,
-                                 tunnel->fwmark);
-        }
-        else {
-                init_tunnel_flow(&fl4, protocol, dst, tnl_params->saddr,
-                                 tunnel->parms.o_key, RT_TOS(tos), tunnel->parms.link,
-                                 skb->mark);
-        }
+        init_tunnel_flow(&fl4, protocol, dst, tnl_params->saddr,
+                         tunnel->parms.o_key, RT_TOS(tos), tunnel->parms.link,
+                         tunnel->fwmark);
 
         if (ip_tunnel_encap(skb, tunnel, &protocol, &fl4) < 0)
                 goto tx_error;
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 4ffe302f9b82..e3e420f3ba7b 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -252,6 +252,10 @@ unsigned int arpt_do_table(struct sk_buff *skb,
                         }
                         if (table_base + v
                             != arpt_next_entry(e)) {
+                                if (unlikely(stackidx >= private->stacksize)) {
+                                        verdict = NF_DROP;
+                                        break;
+                                }
                                 jumpstack[stackidx++] = e;
                         }
 
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 9a71f3149507..e38395a8dcf2 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -330,8 +330,13 @@ ipt_do_table(struct sk_buff *skb,
                                 continue;
                         }
                         if (table_base + v != ipt_next_entry(e) &&
-                            !(e->ip.flags & IPT_F_GOTO))
+                            !(e->ip.flags & IPT_F_GOTO)) {
+                                if (unlikely(stackidx >= private->stacksize)) {
+                                        verdict = NF_DROP;
+                                        break;
+                                }
                                 jumpstack[stackidx++] = e;
+                        }
 
                         e = get_entry(table_base, v);
                         continue;
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 3a84a60f6b39..8a8ae61cea71 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -107,12 +107,6 @@ clusterip_config_entry_put(struct net *net, struct clusterip_config *c)
 
         local_bh_disable();
         if (refcount_dec_and_lock(&c->entries, &cn->lock)) {
-                list_del_rcu(&c->list);
-                spin_unlock(&cn->lock);
-                local_bh_enable();
-
-                unregister_netdevice_notifier(&c->notifier);
-
                 /* In case anyone still accesses the file, the open/close
                  * functions are also incrementing the refcount on their own,
                  * so it's safe to remove the entry even if it's in use. */
@@ -120,6 +114,12 @@ clusterip_config_entry_put(struct net *net, struct clusterip_config *c)
                 if (cn->procdir)
                         proc_remove(c->pde);
 #endif
+                list_del_rcu(&c->list);
+                spin_unlock(&cn->lock);
+                local_bh_enable();
+
+                unregister_netdevice_notifier(&c->notifier);
+
                 return;
         }
         local_bh_enable();
@@ -154,8 +154,12 @@ clusterip_config_find_get(struct net *net, __be32 clusterip, int entry)
 #endif
                 if (unlikely(!refcount_inc_not_zero(&c->refcount)))
                         c = NULL;
-                else if (entry)
-                        refcount_inc(&c->entries);
+                else if (entry) {
+                        if (unlikely(!refcount_inc_not_zero(&c->entries))) {
+                                clusterip_config_put(c);
+                                c = NULL;
+                        }
+                }
         }
         rcu_read_unlock_bh();
 
@@ -228,7 +232,6 @@ clusterip_config_init(struct net *net, const struct ipt_clusterip_tgt_info *i,
         c->hash_mode = i->hash_mode;
         c->hash_initval = i->hash_initval;
         refcount_set(&c->refcount, 1);
-        refcount_set(&c->entries, 1);
 
         spin_lock_bh(&cn->lock);
         if (__clusterip_config_find(net, ip)) {
@@ -259,8 +262,10 @@ clusterip_config_init(struct net *net, const struct ipt_clusterip_tgt_info *i,
 
         c->notifier.notifier_call = clusterip_netdev_event;
         err = register_netdevice_notifier(&c->notifier);
-        if (!err)
+        if (!err) {
+                refcount_set(&c->entries, 1);
                 return c;
+        }
 
 #ifdef CONFIG_PROC_FS
         proc_remove(c->pde);
@@ -269,7 +274,7 @@ err:
         spin_lock_bh(&cn->lock);
         list_del_rcu(&c->list);
         spin_unlock_bh(&cn->lock);
-        kfree(c);
+        clusterip_config_put(c);
 
         return ERR_PTR(err);
 }
@@ -492,12 +497,15 @@ static int clusterip_tg_check(const struct xt_tgchk_param *par)
                                 return PTR_ERR(config);
                 }
         }
-        cipinfo->config = config;
 
         ret = nf_ct_netns_get(par->net, par->family);
-        if (ret < 0)
+        if (ret < 0) {
                 pr_info("cannot load conntrack support for proto=%u\n",
                         par->family);
+                clusterip_config_entry_put(par->net, config);
+                clusterip_config_put(config);
+                return ret;
+        }
 
         if (!par->net->xt.clusterip_deprecated_warning) {
                 pr_info("ipt_CLUSTERIP is deprecated and it will removed soon, "
@@ -505,6 +513,7 @@ static int clusterip_tg_check(const struct xt_tgchk_param *par)
                 par->net->xt.clusterip_deprecated_warning = true;
         }
 
+        cipinfo->config = config;
         return ret;
 }
 
diff --git a/net/ipv4/netfilter/ipt_ECN.c b/net/ipv4/netfilter/ipt_ECN.c
index 270765236f5e..aaaf9a81fbc9 100644
--- a/net/ipv4/netfilter/ipt_ECN.c
+++ b/net/ipv4/netfilter/ipt_ECN.c
@@ -98,17 +98,15 @@ static int ecn_tg_check(const struct xt_tgchk_param *par)
         const struct ipt_ECN_info *einfo = par->targinfo;
         const struct ipt_entry *e = par->entryinfo;
 
-        if (einfo->operation & IPT_ECN_OP_MASK) {
-                pr_info("unsupported ECN operation %x\n", einfo->operation);
+        if (einfo->operation & IPT_ECN_OP_MASK)
                 return -EINVAL;
-        }
-        if (einfo->ip_ect & ~IPT_ECN_IP_MASK) {
-                pr_info("new ECT codepoint %x out of mask\n", einfo->ip_ect);
+
+        if (einfo->ip_ect & ~IPT_ECN_IP_MASK)
                 return -EINVAL;
-        }
+
         if ((einfo->operation & (IPT_ECN_OP_SET_ECE|IPT_ECN_OP_SET_CWR)) &&
             (e->ip.proto != IPPROTO_TCP || (e->ip.invflags & XT_INV_PROTO))) {
-                pr_info("cannot use TCP operations on a non-tcp rule\n");
+                pr_info_ratelimited("cannot use operation on non-tcp rule\n");
                 return -EINVAL;
         }
         return 0;
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 8bd0d7b26632..e8bed3390e58 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -74,13 +74,13 @@ static int reject_tg_check(const struct xt_tgchk_param *par)
         const struct ipt_entry *e = par->entryinfo;
 
         if (rejinfo->with == IPT_ICMP_ECHOREPLY) {
-                pr_info("ECHOREPLY no longer supported.\n");
+                pr_info_ratelimited("ECHOREPLY no longer supported.\n");
                 return -EINVAL;
         } else if (rejinfo->with == IPT_TCP_RESET) {
                 /* Must specify that it's a TCP packet */
                 if (e->ip.proto != IPPROTO_TCP ||
                     (e->ip.invflags & XT_INV_PROTO)) {
-                        pr_info("TCP_RESET invalid for non-tcp\n");
+                        pr_info_ratelimited("TCP_RESET invalid for non-tcp\n");
                         return -EINVAL;
                 }
         }
diff --git a/net/ipv4/netfilter/ipt_rpfilter.c b/net/ipv4/netfilter/ipt_rpfilter.c
index 37fb9552e858..fd01f13c896a 100644
--- a/net/ipv4/netfilter/ipt_rpfilter.c
+++ b/net/ipv4/netfilter/ipt_rpfilter.c
@@ -105,14 +105,14 @@ static int rpfilter_check(const struct xt_mtchk_param *par)
         const struct xt_rpfilter_info *info = par->matchinfo;
         unsigned int options = ~XT_RPFILTER_OPTION_MASK;
         if (info->flags & options) {
-                pr_info("unknown options encountered");
+                pr_info_ratelimited("unknown options\n");
                 return -EINVAL;
         }
 
         if (strcmp(par->table, "mangle") != 0 &&
             strcmp(par->table, "raw") != 0) {
-                pr_info("match only valid in the \'raw\' "
-                        "or \'mangle\' tables, not \'%s\'.\n", par->table);
+                pr_info_ratelimited("only valid in \'raw\' or \'mangle\' table, not \'%s\'\n",
+                                    par->table);
                 return -EINVAL;
         }
 
diff --git a/net/ipv4/netfilter/nf_flow_table_ipv4.c b/net/ipv4/netfilter/nf_flow_table_ipv4.c
index 25d2975da156..0cd46bffa469 100644
--- a/net/ipv4/netfilter/nf_flow_table_ipv4.c
+++ b/net/ipv4/netfilter/nf_flow_table_ipv4.c
@@ -111,6 +111,7 @@ static int nf_flow_dnat_ip(const struct flow_offload *flow, struct sk_buff *skb,
         default:
                 return -1;
         }
+        csum_replace4(&iph->check, addr, new_addr);
 
         return nf_flow_nat_ip_l4proto(skb, iph, thoff, addr, new_addr);
 }
@@ -185,7 +186,7 @@ static bool __nf_flow_exceeds_mtu(const struct sk_buff *skb, unsigned int mtu)
         if ((ip_hdr(skb)->frag_off & htons(IP_DF)) == 0)
                 return false;
 
-        if (skb_is_gso(skb) && skb_gso_validate_mtu(skb, mtu))
+        if (skb_is_gso(skb) && skb_gso_validate_network_len(skb, mtu))
                 return false;
 
         return true;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 49cc1c1df1ba..299e247b2032 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -128,10 +128,11 @@ static int ip_rt_redirect_silence __read_mostly	= ((HZ / 50) << (9 + 1));
 static int ip_rt_error_cost __read_mostly       = HZ;
 static int ip_rt_error_burst __read_mostly      = 5 * HZ;
 static int ip_rt_mtu_expires __read_mostly      = 10 * 60 * HZ;
-static int ip_rt_min_pmtu __read_mostly         = 512 + 20 + 20;
+static u32 ip_rt_min_pmtu __read_mostly         = 512 + 20 + 20;
 static int ip_rt_min_advmss __read_mostly       = 256;
 
 static int ip_rt_gc_timeout __read_mostly       = RT_GC_TIMEOUT;
+
 /*
  *      Interface to generic destination cache.
  */
@@ -633,6 +634,7 @@ static inline u32 fnhe_hashfun(__be32 daddr)
 static void fill_route_from_fnhe(struct rtable *rt, struct fib_nh_exception *fnhe)
 {
         rt->rt_pmtu = fnhe->fnhe_pmtu;
+        rt->rt_mtu_locked = fnhe->fnhe_mtu_locked;
         rt->dst.expires = fnhe->fnhe_expires;
 
         if (fnhe->fnhe_gw) {
@@ -643,7 +645,7 @@ static void fill_route_from_fnhe(struct rtable *rt, struct fib_nh_exception *fnh
 }
 
 static void update_or_create_fnhe(struct fib_nh *nh, __be32 daddr, __be32 gw,
-                                  u32 pmtu, unsigned long expires)
+                                  u32 pmtu, bool lock, unsigned long expires)
 {
         struct fnhe_hash_bucket *hash;
         struct fib_nh_exception *fnhe;
@@ -680,8 +682,10 @@ static void update_or_create_fnhe(struct fib_nh *nh, __be32 daddr, __be32 gw,
                         fnhe->fnhe_genid = genid;
                 if (gw)
                         fnhe->fnhe_gw = gw;
-                if (pmtu)
+                if (pmtu) {
                         fnhe->fnhe_pmtu = pmtu;
+                        fnhe->fnhe_mtu_locked = lock;
+                }
                 fnhe->fnhe_expires = max(1UL, expires);
                 /* Update all cached dsts too */
                 rt = rcu_dereference(fnhe->fnhe_rth_input);
@@ -705,6 +709,7 @@ static void update_or_create_fnhe(struct fib_nh *nh, __be32 daddr, __be32 gw,
                 fnhe->fnhe_daddr = daddr;
                 fnhe->fnhe_gw = gw;
                 fnhe->fnhe_pmtu = pmtu;
+                fnhe->fnhe_mtu_locked = lock;
                 fnhe->fnhe_expires = expires;
 
                 /* Exception created; mark the cached routes for the nexthop
@@ -786,7 +791,8 @@ static void __ip_do_redirect(struct rtable *rt, struct sk_buff *skb, struct flow
                                 struct fib_nh *nh = &FIB_RES_NH(res);
 
                                 update_or_create_fnhe(nh, fl4->daddr, new_gw,
-                                                0, jiffies + ip_rt_gc_timeout);
+                                                0, false,
+                                                jiffies + ip_rt_gc_timeout);
                         }
                         if (kill_route)
                                 rt->dst.obsolete = DST_OBSOLETE_KILL;
@@ -930,14 +936,23 @@ out_put_peer:
 
 static int ip_error(struct sk_buff *skb)
 {
-        struct in_device *in_dev = __in_dev_get_rcu(skb->dev);
         struct rtable *rt = skb_rtable(skb);
+        struct net_device *dev = skb->dev;
+        struct in_device *in_dev;
         struct inet_peer *peer;
         unsigned long now;
         struct net *net;
         bool send;
         int code;
 
+        if (netif_is_l3_master(skb->dev)) {
+                dev = __dev_get_by_index(dev_net(skb->dev), IPCB(skb)->iif);
+                if (!dev)
+                        goto out;
+        }
+
+        in_dev = __in_dev_get_rcu(dev);
+
         /* IP on this device is disabled. */
         if (!in_dev)
                 goto out;
@@ -999,15 +1014,18 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu)
 {
         struct dst_entry *dst = &rt->dst;
         struct fib_result res;
+        bool lock = false;
 
-        if (dst_metric_locked(dst, RTAX_MTU))
+        if (ip_mtu_locked(dst))
                 return;
 
         if (ipv4_mtu(dst) < mtu)
                 return;
 
-        if (mtu < ip_rt_min_pmtu)
+        if (mtu < ip_rt_min_pmtu) {
+                lock = true;
                 mtu = ip_rt_min_pmtu;
+        }
 
         if (rt->rt_pmtu == mtu &&
             time_before(jiffies, dst->expires - ip_rt_mtu_expires / 2))
@@ -1017,7 +1035,7 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu)
         if (fib_lookup(dev_net(dst->dev), fl4, &res, 0) == 0) {
                 struct fib_nh *nh = &FIB_RES_NH(res);
 
-                update_or_create_fnhe(nh, fl4->daddr, 0, mtu,
+                update_or_create_fnhe(nh, fl4->daddr, 0, mtu, lock,
                                       jiffies + ip_rt_mtu_expires);
         }
         rcu_read_unlock();
@@ -1270,7 +1288,7 @@ static unsigned int ipv4_mtu(const struct dst_entry *dst)
 
         mtu = READ_ONCE(dst->dev->mtu);
 
-        if (unlikely(dst_metric_locked(dst, RTAX_MTU))) {
+        if (unlikely(ip_mtu_locked(dst))) {
                 if (rt->rt_uses_gateway && mtu > 576)
                         mtu = 576;
         }
@@ -1383,7 +1401,7 @@ struct uncached_list {
 
 static DEFINE_PER_CPU_ALIGNED(struct uncached_list, rt_uncached_list);
 
-static void rt_add_uncached_list(struct rtable *rt)
+void rt_add_uncached_list(struct rtable *rt)
 {
         struct uncached_list *ul = raw_cpu_ptr(&rt_uncached_list);
 
@@ -1394,14 +1412,8 @@ static void rt_add_uncached_list(struct rtable *rt)
         spin_unlock_bh(&ul->lock);
 }
 
-static void ipv4_dst_destroy(struct dst_entry *dst)
+void rt_del_uncached_list(struct rtable *rt)
 {
-        struct dst_metrics *p = (struct dst_metrics *)DST_METRICS_PTR(dst);
-        struct rtable *rt = (struct rtable *) dst;
-
-        if (p != &dst_default_metrics && refcount_dec_and_test(&p->refcnt))
-                kfree(p);
-
         if (!list_empty(&rt->rt_uncached)) {
                 struct uncached_list *ul = rt->rt_uncached_list;
 
@@ -1411,6 +1423,17 @@ static void ipv4_dst_destroy(struct dst_entry *dst)
         }
 }
 
+static void ipv4_dst_destroy(struct dst_entry *dst)
+{
+        struct dst_metrics *p = (struct dst_metrics *)DST_METRICS_PTR(dst);
+        struct rtable *rt = (struct rtable *)dst;
+
+        if (p != &dst_default_metrics && refcount_dec_and_test(&p->refcnt))
+                kfree(p);
+
+        rt_del_uncached_list(rt);
+}
+
 void rt_flush_dev(struct net_device *dev)
 {
         struct net *net = dev_net(dev);
@@ -1506,6 +1529,7 @@ struct rtable *rt_dst_alloc(struct net_device *dev,
                 rt->rt_is_input = 0;
                 rt->rt_iif = 0;
                 rt->rt_pmtu = 0;
+                rt->rt_mtu_locked = 0;
                 rt->rt_gateway = 0;
                 rt->rt_uses_gateway = 0;
                 rt->rt_table_id = 0;
@@ -1826,6 +1850,8 @@ int fib_multipath_hash(const struct fib_info *fi, const struct flowi4 *fl4,
                                 return skb_get_hash_raw(skb) >> 1;
                         memset(&hash_keys, 0, sizeof(hash_keys));
                         skb_flow_dissect_flow_keys(skb, &keys, flag);
+
+                        hash_keys.control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
                         hash_keys.addrs.v4addrs.src = keys.addrs.v4addrs.src;
                         hash_keys.addrs.v4addrs.dst = keys.addrs.v4addrs.dst;
                         hash_keys.ports.src = keys.ports.src;
@@ -2529,6 +2555,7 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or
                 rt->rt_is_input = ort->rt_is_input;
                 rt->rt_iif = ort->rt_iif;
                 rt->rt_pmtu = ort->rt_pmtu;
+                rt->rt_mtu_locked = ort->rt_mtu_locked;
 
                 rt->rt_genid = rt_genid_ipv4(net);
                 rt->rt_flags = ort->rt_flags;
@@ -2631,6 +2658,8 @@ static int rt_fill_info(struct net *net,  __be32 dst, __be32 src, u32 table_id,
         memcpy(metrics, dst_metrics_ptr(&rt->dst), sizeof(metrics));
         if (rt->rt_pmtu && expires)
                 metrics[RTAX_MTU - 1] = rt->rt_pmtu;
+        if (rt->rt_mtu_locked && expires)
+                metrics[RTAX_LOCK - 1] |= BIT(RTAX_MTU);
         if (rtnetlink_put_metrics(skb, metrics) < 0)
                 goto nla_put_failure;
 
@@ -2816,6 +2845,7 @@ void ip_rt_multicast_event(struct in_device *in_dev)
 static int ip_rt_gc_interval __read_mostly  = 60 * HZ;
 static int ip_rt_gc_min_interval __read_mostly  = HZ / 2;
 static int ip_rt_gc_elasticity __read_mostly    = 8;
+static int ip_min_valid_pmtu __read_mostly      = IPV4_MIN_MTU;
 
 static int ipv4_sysctl_rtcache_flush(struct ctl_table *__ctl, int write,
                                         void __user *buffer,
@@ -2931,7 +2961,8 @@ static struct ctl_table ipv4_route_table[] = {
                 .data           = &ip_rt_min_pmtu,
                 .maxlen         = sizeof(int),
                 .mode           = 0644,
-                .proc_handler   = proc_dointvec,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &ip_min_valid_pmtu,
         },
         {
                 .procname       = "min_adv_mss",
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 48636aee23c3..8b8059b7af4d 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3566,6 +3566,7 @@ int tcp_abort(struct sock *sk, int err)
 
         bh_unlock_sock(sk);
         local_bh_enable();
+        tcp_write_queue_purge(sk);
         release_sock(sk);
         return 0;
 }
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index 7c843578f233..faddf4f9a707 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -6,7 +6,7 @@
  * The algorithm is described in:
  * "TCP-Illinois: A Loss and Delay-Based Congestion Control Algorithm
  *  for High-Speed Networks"
- * http://www.ifp.illinois.edu/~srikant/Papers/liubassri06perf.pdf
+ * http://tamerbasar.csl.illinois.edu/LiuBasarSrikantPerfEvalArtJun2008.pdf
  *
  * Implemented from description in paper and ns-2 simulation.
  * Copyright (C) 2007 Stephen Hemminger <shemminger@linux-foundation.org>
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 575d3c1fb6e8..9a1b3c1c1c14 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1971,11 +1971,6 @@ void tcp_enter_loss(struct sock *sk)
         /* F-RTO RFC5682 sec 3.1 step 1: retransmit SND.UNA if no previous
          * loss recovery is underway except recurring timeout(s) on
          * the same SND.UNA (sec 3.2). Disable F-RTO on path MTU probing
-         *
-         * In theory F-RTO can be used repeatedly during loss recovery.
-         * In practice this interacts badly with broken middle-boxes that
-         * falsely raise the receive window, which results in repeated
-         * timeouts and stop-and-go behavior.
          */
         tp->frto = net->ipv4.sysctl_tcp_frto &&
                    (new_recovery || icsk->icsk_retransmits) &&
@@ -2631,18 +2626,14 @@ static void tcp_process_loss(struct sock *sk, int flag, bool is_dupack,
             tcp_try_undo_loss(sk, false))
                 return;
 
-        /* The ACK (s)acks some never-retransmitted data meaning not all
-         * the data packets before the timeout were lost. Therefore we
-         * undo the congestion window and state. This is essentially
-         * the operation in F-RTO (RFC5682 section 3.1 step 3.b). Since
-         * a retransmitted skb is permantly marked, we can apply such an
-         * operation even if F-RTO was not used.
-         */
-        if ((flag & FLAG_ORIG_SACK_ACKED) &&
-            tcp_try_undo_loss(sk, tp->undo_marker))
-                return;
-
         if (tp->frto) { /* F-RTO RFC5682 sec 3.1 (sack enhanced version). */
+                /* Step 3.b. A timeout is spurious if not all data are
+                 * lost, i.e., never-retransmitted data are (s)acked.
+                 */
+                if ((flag & FLAG_ORIG_SACK_ACKED) &&
+                    tcp_try_undo_loss(sk, true))
+                        return;
+
                 if (after(tp->snd_nxt, tp->high_seq)) {
                         if (flag & FLAG_DATA_SACKED || is_dupack)
                                 tp->frto = 0; /* Step 3.a. loss was real */
@@ -4001,6 +3992,7 @@ void tcp_reset(struct sock *sk)
         /* This barrier is coupled with smp_rmb() in tcp_poll() */
         smp_wmb();
 
+        tcp_write_queue_purge(sk);
         tcp_done(sk);
 
         if (!sock_flag(sk, SOCK_DEAD))
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index e9f985e42405..6818042cd8a9 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1730,7 +1730,7 @@ u32 tcp_tso_autosize(const struct sock *sk, unsigned int mss_now,
          */
         segs = max_t(u32, bytes / mss_now, min_tso_segs);
 
-        return min_t(u32, segs, sk->sk_gso_max_segs);
+        return segs;
 }
 EXPORT_SYMBOL(tcp_tso_autosize);
 
@@ -1742,9 +1742,10 @@ static u32 tcp_tso_segs(struct sock *sk, unsigned int mss_now)
         const struct tcp_congestion_ops *ca_ops = inet_csk(sk)->icsk_ca_ops;
         u32 tso_segs = ca_ops->tso_segs_goal ? ca_ops->tso_segs_goal(sk) : 0;
 
-        return tso_segs ? :
-                tcp_tso_autosize(sk, mss_now,
-                                 sock_net(sk)->ipv4.sysctl_tcp_min_tso_segs);
+        if (!tso_segs)
+                tso_segs = tcp_tso_autosize(sk, mss_now,
+                                sock_net(sk)->ipv4.sysctl_tcp_min_tso_segs);
+        return min_t(u32, tso_segs, sk->sk_gso_max_segs);
 }
 
 /* Returns the portion of skb which can be sent right away */
@@ -2027,6 +2028,24 @@ static inline void tcp_mtu_check_reprobe(struct sock *sk)
         }
 }
 
+static bool tcp_can_coalesce_send_queue_head(struct sock *sk, int len)
+{
+        struct sk_buff *skb, *next;
+
+        skb = tcp_send_head(sk);
+        tcp_for_write_queue_from_safe(skb, next, sk) {
+                if (len <= skb->len)
+                        break;
+
+                if (unlikely(TCP_SKB_CB(skb)->eor))
+                        return false;
+
+                len -= skb->len;
+        }
+
+        return true;
+}
+
 /* Create a new MTU probe if we are ready.
  * MTU probe is regularly attempting to increase the path MTU by
  * deliberately sending larger packets.  This discovers routing
@@ -2099,6 +2118,9 @@ static int tcp_mtu_probe(struct sock *sk)
                         return 0;
         }
 
+        if (!tcp_can_coalesce_send_queue_head(sk, probe_size))
+                return -1;
+
         /* We're allowed to probe.  Build it now. */
         nskb = sk_stream_alloc_skb(sk, probe_size, GFP_ATOMIC, false);
         if (!nskb)
@@ -2134,6 +2156,10 @@ static int tcp_mtu_probe(struct sock *sk)
                         /* We've eaten all the data from this skb.
                          * Throw it away. */
                         TCP_SKB_CB(nskb)->tcp_flags |= TCP_SKB_CB(skb)->tcp_flags;
+                        /* If this is the last SKB we copy and eor is set
+                         * we need to propagate it to the new skb.
+                         */
+                        TCP_SKB_CB(nskb)->eor = TCP_SKB_CB(skb)->eor;
                         tcp_unlink_write_queue(skb, sk);
                         sk_wmem_free_skb(sk, skb);
                 } else {
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 71fc60f1b326..f7d944855f8e 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -34,6 +34,7 @@ static void tcp_write_err(struct sock *sk)
         sk->sk_err = sk->sk_err_soft ? : ETIMEDOUT;
         sk->sk_error_report(sk);
 
+        tcp_write_queue_purge(sk);
         tcp_done(sk);
         __NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPABORTONTIMEOUT);
 }
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index bfaefe560b5c..e5ef7c38c934 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2024,6 +2024,11 @@ static inline int udp4_csum_init(struct sk_buff *skb, struct udphdr *uh,
                 err = udplite_checksum_init(skb, uh);
                 if (err)
                         return err;
+
+                if (UDP_SKB_CB(skb)->partial_cov) {
+                        skb->csum = inet_compute_pseudo(skb, proto);
+                        return 0;
+                }
         }
 
         /* Note, we are only interested in != 0 or == 0, thus the
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index 63faeee989a9..2a9764bd1719 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -92,7 +92,8 @@ static int xfrm4_mode_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
 
         skb_reset_network_header(skb);
         skb_mac_header_rebuild(skb);
-        eth_hdr(skb)->h_proto = skb->protocol;
+        if (skb->mac_len)
+                eth_hdr(skb)->h_proto = skb->protocol;
 
         err = 0;
 
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index 94b8702603bc..be980c195fc5 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -30,7 +30,8 @@ static int xfrm4_tunnel_check_size(struct sk_buff *skb)
 
         mtu = dst_mtu(skb_dst(skb));
         if ((!skb_is_gso(skb) && skb->len > mtu) ||
-            (skb_is_gso(skb) && skb_gso_network_seglen(skb) > ip_skb_dst_mtu(skb->sk, skb))) {
+            (skb_is_gso(skb) &&
+             !skb_gso_validate_network_len(skb, ip_skb_dst_mtu(skb->sk, skb)))) {
                 skb->protocol = htons(ETH_P_IP);
 
                 if (skb->sk)
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 05017e2c849c..fbebda67ac1b 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -100,8 +100,10 @@ static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
         xdst->u.rt.rt_gateway = rt->rt_gateway;
         xdst->u.rt.rt_uses_gateway = rt->rt_uses_gateway;
         xdst->u.rt.rt_pmtu = rt->rt_pmtu;
+        xdst->u.rt.rt_mtu_locked = rt->rt_mtu_locked;
         xdst->u.rt.rt_table_id = rt->rt_table_id;
         INIT_LIST_HEAD(&xdst->u.rt.rt_uncached);
+        rt_add_uncached_list(&xdst->u.rt);
 
         return 0;
 }
@@ -241,7 +243,8 @@ static void xfrm4_dst_destroy(struct dst_entry *dst)
         struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
 
         dst_destroy_metrics_generic(dst);
-
+        if (xdst->u.rt.rt_uncached_list)
+                rt_del_uncached_list(&xdst->u.rt);
         xfrm_dst_destroy(xdst);
 }
 
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index fbf08ce3f5ab..a9f7eca0b6a3 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -146,10 +146,12 @@ int __ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr,
         struct sockaddr_in6     *usin = (struct sockaddr_in6 *) uaddr;
         struct inet_sock        *inet = inet_sk(sk);
         struct ipv6_pinfo       *np = inet6_sk(sk);
-        struct in6_addr         *daddr;
+        struct in6_addr         *daddr, old_daddr;
+        __be32                  fl6_flowlabel = 0;
+        __be32                  old_fl6_flowlabel;
+        __be16                  old_dport;
         int                     addr_type;
         int                     err;
-        __be32                  fl6_flowlabel = 0;
 
         if (usin->sin6_family == AF_INET) {
                 if (__ipv6_only_sock(sk))
@@ -238,9 +240,13 @@ ipv4_connected:
                 }
         }
 
+        /* save the current peer information before updating it */
+        old_daddr = sk->sk_v6_daddr;
+        old_fl6_flowlabel = np->flow_label;
+        old_dport = inet->inet_dport;
+
         sk->sk_v6_daddr = *daddr;
         np->flow_label = fl6_flowlabel;
-
         inet->inet_dport = usin->sin6_port;
 
         /*
@@ -250,11 +256,12 @@ ipv4_connected:
 
         err = ip6_datagram_dst_update(sk, true);
         if (err) {
-                /* Reset daddr and dport so that udp_v6_early_demux()
-                 * fails to find this socket
+                /* Restore the socket peer info, to keep it consistent with
+                 * the old socket state
                  */
-                memset(&sk->sk_v6_daddr, 0, sizeof(sk->sk_v6_daddr));
-                inet->inet_dport = 0;
+                sk->sk_v6_daddr = old_daddr;
+                np->flow_label = old_fl6_flowlabel;
+                inet->inet_dport = old_dport;
                 goto out;
         }
 
diff --git a/net/ipv6/ip6_checksum.c b/net/ipv6/ip6_checksum.c
index ec43d18b5ff9..547515e8450a 100644
--- a/net/ipv6/ip6_checksum.c
+++ b/net/ipv6/ip6_checksum.c
@@ -73,6 +73,11 @@ int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh, int proto)
                 err = udplite_checksum_init(skb, uh);
                 if (err)
                         return err;
+
+                if (UDP_SKB_CB(skb)->partial_cov) {
+                        skb->csum = ip6_compute_pseudo(skb, proto);
+                        return 0;
+                }
         }
 
         /* To support RFC 6936 (allow zero checksum in UDP/IPV6 for tunnels)
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 3c353125546d..1bbd0930063e 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -126,7 +126,8 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
         struct ip6_tnl *t, *cand = NULL;
         struct ip6gre_net *ign = net_generic(net, ip6gre_net_id);
         int dev_type = (gre_proto == htons(ETH_P_TEB) ||
-                        gre_proto == htons(ETH_P_ERSPAN)) ?
+                        gre_proto == htons(ETH_P_ERSPAN) ||
+                        gre_proto == htons(ETH_P_ERSPAN2)) ?
                        ARPHRD_ETHER : ARPHRD_IP6GRE;
         int score, cand_score = 4;
 
@@ -902,6 +903,9 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
                 truncate = true;
         }
 
+        if (skb_cow_head(skb, dev->needed_headroom))
+                goto tx_err;
+
         t->parms.o_flags &= ~TUNNEL_KEY;
         IPCB(skb)->flags = 0;
 
@@ -944,6 +948,8 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
                                                md->u.md2.dir,
                                                get_hwid(&md->u.md2),
                                                truncate, false);
+                } else {
+                        goto tx_err;
                 }
         } else {
                 switch (skb->protocol) {
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 997c7f19ad62..a8a919520090 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -412,7 +412,7 @@ static bool ip6_pkt_too_big(const struct sk_buff *skb, unsigned int mtu)
         if (skb->ignore_df)
                 return false;
 
-        if (skb_is_gso(skb) && skb_gso_validate_mtu(skb, mtu))
+        if (skb_is_gso(skb) && skb_gso_validate_network_len(skb, mtu))
                 return false;
 
         return true;
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 4b15fe928278..6e0f21eed88a 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1982,14 +1982,14 @@ static int ip6_tnl_newlink(struct net *src_net, struct net_device *dev,
 {
         struct net *net = dev_net(dev);
         struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
-        struct ip6_tnl *nt, *t;
         struct ip_tunnel_encap ipencap;
+        struct ip6_tnl *nt, *t;
+        int err;
 
         nt = netdev_priv(dev);
 
         if (ip6_tnl_netlink_encap_parms(data, &ipencap)) {
-                int err = ip6_tnl_encap_setup(nt, &ipencap);
-
+                err = ip6_tnl_encap_setup(nt, &ipencap);
                 if (err < 0)
                         return err;
         }
@@ -2005,7 +2005,11 @@ static int ip6_tnl_newlink(struct net *src_net, struct net_device *dev,
                         return -EEXIST;
         }
 
-        return ip6_tnl_create2(dev);
+        err = ip6_tnl_create2(dev);
+        if (!err && tb[IFLA_MTU])
+                ip6_tnl_change_mtu(dev, nla_get_u32(tb[IFLA_MTU]));
+
+        return err;
 }
 
 static int ip6_tnl_changelink(struct net_device *dev, struct nlattr *tb[],
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index d78d41fc4b1a..24535169663d 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -1367,10 +1367,7 @@ int ipv6_getsockopt(struct sock *sk, int level, int optname,
                 if (get_user(len, optlen))
                         return -EFAULT;
 
-                lock_sock(sk);
-                err = nf_getsockopt(sk, PF_INET6, optname, optval,
-                                &len);
-                release_sock(sk);
+                err = nf_getsockopt(sk, PF_INET6, optname, optval, &len);
                 if (err >= 0)
                         err = put_user(len, optlen);
         }
@@ -1409,10 +1406,7 @@ int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
                 if (get_user(len, optlen))
                         return -EFAULT;
 
-                lock_sock(sk);
-                err = compat_nf_getsockopt(sk, PF_INET6,
-                                           optname, optval, &len);
-                release_sock(sk);
+                err = compat_nf_getsockopt(sk, PF_INET6, optname, optval, &len);
                 if (err >= 0)
                         err = put_user(len, optlen);
         }
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index f61a5b613b52..ba5e04c6ae17 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1554,7 +1554,8 @@ static void ndisc_fill_redirect_hdr_option(struct sk_buff *skb,
         *(opt++) = (rd_len >> 3);
         opt += 6;
 
-        memcpy(opt, ipv6_hdr(orig_skb), rd_len - 8);
+        skb_copy_bits(orig_skb, skb_network_offset(orig_skb), opt,
+                      rd_len - 8);
 }
 
 void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index d95ceca7ff8f..531d6957af36 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -21,18 +21,19 @@
 int ip6_route_me_harder(struct net *net, struct sk_buff *skb)
 {
         const struct ipv6hdr *iph = ipv6_hdr(skb);
+        struct sock *sk = sk_to_full_sk(skb->sk);
         unsigned int hh_len;
         struct dst_entry *dst;
         struct flowi6 fl6 = {
-                .flowi6_oif = skb->sk ? skb->sk->sk_bound_dev_if : 0,
+                .flowi6_oif = sk ? sk->sk_bound_dev_if : 0,
                 .flowi6_mark = skb->mark,
-                .flowi6_uid = sock_net_uid(net, skb->sk),
+                .flowi6_uid = sock_net_uid(net, sk),
                 .daddr = iph->daddr,
                 .saddr = iph->saddr,
         };
         int err;
 
-        dst = ip6_route_output(net, skb->sk, &fl6);
+        dst = ip6_route_output(net, sk, &fl6);
         err = dst->error;
         if (err) {
                 IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES);
@@ -50,7 +51,7 @@ int ip6_route_me_harder(struct net *net, struct sk_buff *skb)
         if (!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
             xfrm_decode_session(skb, flowi6_to_flowi(&fl6), AF_INET6) == 0) {
                 skb_dst_set(skb, NULL);
-                dst = xfrm_lookup(net, dst, flowi6_to_flowi(&fl6), skb->sk, 0);
+                dst = xfrm_lookup(net, dst, flowi6_to_flowi(&fl6), sk, 0);
                 if (IS_ERR(dst))
                         return PTR_ERR(dst);
                 skb_dst_set(skb, dst);
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index af4c917e0836..62358b93bbac 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -352,6 +352,10 @@ ip6t_do_table(struct sk_buff *skb,
                         }
                         if (table_base + v != ip6t_next_entry(e) &&
                             !(e->ipv6.flags & IP6T_F_GOTO)) {
+                                if (unlikely(stackidx >= private->stacksize)) {
+                                        verdict = NF_DROP;
+                                        break;
+                                }
                                 jumpstack[stackidx++] = e;
                         }
 
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index fa51a205918d..38dea8ff680f 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -85,14 +85,14 @@ static int reject_tg6_check(const struct xt_tgchk_param *par)
         const struct ip6t_entry *e = par->entryinfo;
 
         if (rejinfo->with == IP6T_ICMP6_ECHOREPLY) {
-                pr_info("ECHOREPLY is not supported.\n");
+                pr_info_ratelimited("ECHOREPLY is not supported\n");
                 return -EINVAL;
         } else if (rejinfo->with == IP6T_TCP_RESET) {
                 /* Must specify that it's a TCP packet */
                 if (!(e->ipv6.flags & IP6T_F_PROTO) ||
                     e->ipv6.proto != IPPROTO_TCP ||
                     (e->ipv6.invflags & XT_INV_PROTO)) {
-                        pr_info("TCP_RESET illegal for non-tcp\n");
+                        pr_info_ratelimited("TCP_RESET illegal for non-tcp\n");
                         return -EINVAL;
                 }
         }
diff --git a/net/ipv6/netfilter/ip6t_rpfilter.c b/net/ipv6/netfilter/ip6t_rpfilter.c
index b12e61b7b16c..91ed25a24b79 100644
--- a/net/ipv6/netfilter/ip6t_rpfilter.c
+++ b/net/ipv6/netfilter/ip6t_rpfilter.c
@@ -48,10 +48,6 @@ static bool rpfilter_lookup_reverse6(struct net *net, const struct sk_buff *skb,
         }
 
         fl6.flowi6_mark = flags & XT_RPFILTER_VALID_MARK ? skb->mark : 0;
-        if ((flags & XT_RPFILTER_LOOSE) == 0) {
-                fl6.flowi6_oif = dev->ifindex;
-                lookup_flags |= RT6_LOOKUP_F_IFACE;
-        }
 
         rt = (void *) ip6_route_lookup(net, &fl6, lookup_flags);
         if (rt->dst.error)
@@ -103,14 +99,14 @@ static int rpfilter_check(const struct xt_mtchk_param *par)
         unsigned int options = ~XT_RPFILTER_OPTION_MASK;
 
         if (info->flags & options) {
-                pr_info("unknown options encountered");
+                pr_info_ratelimited("unknown options\n");
                 return -EINVAL;
         }
 
         if (strcmp(par->table, "mangle") != 0 &&
             strcmp(par->table, "raw") != 0) {
-                pr_info("match only valid in the \'raw\' "
-                        "or \'mangle\' tables, not \'%s\'.\n", par->table);
+                pr_info_ratelimited("only valid in \'raw\' or \'mangle\' table, not \'%s\'\n",
+                                    par->table);
                 return -EINVAL;
         }
 
diff --git a/net/ipv6/netfilter/ip6t_srh.c b/net/ipv6/netfilter/ip6t_srh.c
index 9642164107ce..33719d5560c8 100644
--- a/net/ipv6/netfilter/ip6t_srh.c
+++ b/net/ipv6/netfilter/ip6t_srh.c
@@ -122,12 +122,14 @@ static int srh_mt6_check(const struct xt_mtchk_param *par)
         const struct ip6t_srh *srhinfo = par->matchinfo;
 
         if (srhinfo->mt_flags & ~IP6T_SRH_MASK) {
-                pr_err("unknown srh match flags  %X\n", srhinfo->mt_flags);
+                pr_info_ratelimited("unknown srh match flags  %X\n",
+                                    srhinfo->mt_flags);
                 return -EINVAL;
         }
 
         if (srhinfo->mt_invflags & ~IP6T_SRH_INV_MASK) {
-                pr_err("unknown srh invflags %X\n", srhinfo->mt_invflags);
+                pr_info_ratelimited("unknown srh invflags %X\n",
+                                    srhinfo->mt_invflags);
                 return -EINVAL;
         }
 
diff --git a/net/ipv6/netfilter/nf_flow_table_ipv6.c b/net/ipv6/netfilter/nf_flow_table_ipv6.c
index d346705d6ee6..207cb35569b1 100644
--- a/net/ipv6/netfilter/nf_flow_table_ipv6.c
+++ b/net/ipv6/netfilter/nf_flow_table_ipv6.c
@@ -178,7 +178,7 @@ static bool __nf_flow_exceeds_mtu(const struct sk_buff *skb, unsigned int mtu)
         if (skb->len <= mtu)
                 return false;
 
-        if (skb_is_gso(skb) && skb_gso_validate_mtu(skb, mtu))
+        if (skb_is_gso(skb) && skb_gso_validate_network_len(skb, mtu))
                 return false;
 
         return true;
diff --git a/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c b/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
index bed57ee65f7b..6b7f075f811f 100644
--- a/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
@@ -99,6 +99,10 @@ static bool nf_nat_ipv6_manip_pkt(struct sk_buff *skb,
             !l4proto->manip_pkt(skb, &nf_nat_l3proto_ipv6, iphdroff, hdroff,
                                 target, maniptype))
                 return false;
+
+        /* must reload, offset might have changed */
+        ipv6h = (void *)skb->data + iphdroff;
+
 manip_addr:
         if (maniptype == NF_NAT_MANIP_SRC)
                 ipv6h->saddr = target->src.u3.in6;
diff --git a/net/ipv6/netfilter/nft_fib_ipv6.c b/net/ipv6/netfilter/nft_fib_ipv6.c
index cc5174c7254c..62fc84d7bdff 100644
--- a/net/ipv6/netfilter/nft_fib_ipv6.c
+++ b/net/ipv6/netfilter/nft_fib_ipv6.c
@@ -180,7 +180,6 @@ void nft_fib6_eval(const struct nft_expr *expr, struct nft_regs *regs,
         }
 
         *dest = 0;
- again:
         rt = (void *)ip6_route_lookup(nft_net(pkt), &fl6, lookup_flags);
         if (rt->dst.error)
                 goto put_rt_err;
@@ -189,15 +188,8 @@ void nft_fib6_eval(const struct nft_expr *expr, struct nft_regs *regs,
         if (rt->rt6i_flags & (RTF_REJECT | RTF_ANYCAST | RTF_LOCAL))
                 goto put_rt_err;
 
-        if (oif && oif != rt->rt6i_idev->dev) {
-                /* multipath route? Try again with F_IFACE */
-                if ((lookup_flags & RT6_LOOKUP_F_IFACE) == 0) {
-                        lookup_flags |= RT6_LOOKUP_F_IFACE;
-                        fl6.flowi6_oif = oif->ifindex;
-                        ip6_rt_put(rt);
-                        goto again;
-                }
-        }
+        if (oif && oif != rt->rt6i_idev->dev)
+                goto put_rt_err;
 
         switch (priv->result) {
         case NFT_FIB_RESULT_OIF:
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 9dcfadddd800..b0d5c64e1978 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -128,7 +128,7 @@ struct uncached_list {
 
 static DEFINE_PER_CPU_ALIGNED(struct uncached_list, rt6_uncached_list);
 
-static void rt6_uncached_list_add(struct rt6_info *rt)
+void rt6_uncached_list_add(struct rt6_info *rt)
 {
         struct uncached_list *ul = raw_cpu_ptr(&rt6_uncached_list);
 
@@ -139,7 +139,7 @@ static void rt6_uncached_list_add(struct rt6_info *rt)
         spin_unlock_bh(&ul->lock);
 }
 
-static void rt6_uncached_list_del(struct rt6_info *rt)
+void rt6_uncached_list_del(struct rt6_info *rt)
 {
         if (!list_empty(&rt->rt6i_uncached)) {
                 struct uncached_list *ul = rt->rt6i_uncached_list;
@@ -1509,7 +1509,30 @@ static void rt6_exceptions_remove_prefsrc(struct rt6_info *rt)
         }
 }
 
-static void rt6_exceptions_update_pmtu(struct rt6_info *rt, int mtu)
+static bool rt6_mtu_change_route_allowed(struct inet6_dev *idev,
+                                         struct rt6_info *rt, int mtu)
+{
+        /* If the new MTU is lower than the route PMTU, this new MTU will be the
+         * lowest MTU in the path: always allow updating the route PMTU to
+         * reflect PMTU decreases.
+         *
+         * If the new MTU is higher, and the route PMTU is equal to the local
+         * MTU, this means the old MTU is the lowest in the path, so allow
+         * updating it: if other nodes now have lower MTUs, PMTU discovery will
+         * handle this.
+         */
+
+        if (dst_mtu(&rt->dst) >= mtu)
+                return true;
+
+        if (dst_mtu(&rt->dst) == idev->cnf.mtu6)
+                return true;
+
+        return false;
+}
+
+static void rt6_exceptions_update_pmtu(struct inet6_dev *idev,
+                                       struct rt6_info *rt, int mtu)
 {
         struct rt6_exception_bucket *bucket;
         struct rt6_exception *rt6_ex;
@@ -1518,20 +1541,22 @@ static void rt6_exceptions_update_pmtu(struct rt6_info *rt, int mtu)
         bucket = rcu_dereference_protected(rt->rt6i_exception_bucket,
                                         lockdep_is_held(&rt6_exception_lock));
 
-        if (bucket) {
-                for (i = 0; i < FIB6_EXCEPTION_BUCKET_SIZE; i++) {
-                        hlist_for_each_entry(rt6_ex, &bucket->chain, hlist) {
-                                struct rt6_info *entry = rt6_ex->rt6i;
-                                /* For RTF_CACHE with rt6i_pmtu == 0
-                                 * (i.e. a redirected route),
-                                 * the metrics of its rt->dst.from has already
-                                 * been updated.
-                                 */
-                                if (entry->rt6i_pmtu && entry->rt6i_pmtu > mtu)
-                                        entry->rt6i_pmtu = mtu;
-                        }
-                        bucket++;
+        if (!bucket)
+                return;
+
+        for (i = 0; i < FIB6_EXCEPTION_BUCKET_SIZE; i++) {
+                hlist_for_each_entry(rt6_ex, &bucket->chain, hlist) {
+                        struct rt6_info *entry = rt6_ex->rt6i;
+
+                        /* For RTF_CACHE with rt6i_pmtu == 0 (i.e. a redirected
+                         * route), the metrics of its rt->dst.from have already
+                         * been updated.
+                         */
+                        if (entry->rt6i_pmtu &&
+                            rt6_mtu_change_route_allowed(idev, entry, mtu))
+                                entry->rt6i_pmtu = mtu;
                 }
+                bucket++;
         }
 }
 
@@ -3809,25 +3834,13 @@ static int rt6_mtu_change_route(struct rt6_info *rt, void *p_arg)
            Since RFC 1981 doesn't include administrative MTU increase
            update PMTU increase is a MUST. (i.e. jumbo frame)
          */
-        /*
-           If new MTU is less than route PMTU, this new MTU will be the
-           lowest MTU in the path, update the route PMTU to reflect PMTU
-           decreases; if new MTU is greater than route PMTU, and the
-           old MTU is the lowest MTU in the path, update the route PMTU
-           to reflect the increase. In this case if the other nodes' MTU
-           also have the lowest MTU, TOO BIG MESSAGE will be lead to
-           PMTU discovery.
-         */
         if (rt->dst.dev == arg->dev &&
-            dst_metric_raw(&rt->dst, RTAX_MTU) &&
             !dst_metric_locked(&rt->dst, RTAX_MTU)) {
                 spin_lock_bh(&rt6_exception_lock);
-                if (dst_mtu(&rt->dst) >= arg->mtu ||
-                    (dst_mtu(&rt->dst) < arg->mtu &&
-                     dst_mtu(&rt->dst) == idev->cnf.mtu6)) {
+                if (dst_metric_raw(&rt->dst, RTAX_MTU) &&
+                    rt6_mtu_change_route_allowed(idev, rt, arg->mtu))
                         dst_metric_set(&rt->dst, RTAX_MTU, arg->mtu);
-                }
-                rt6_exceptions_update_pmtu(rt, arg->mtu);
+                rt6_exceptions_update_pmtu(idev, rt, arg->mtu);
                 spin_unlock_bh(&rt6_exception_lock);
         }
         return 0;
@@ -4099,6 +4112,7 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
                                 r_cfg.fc_encap_type = nla_get_u16(nla);
                 }
 
+                r_cfg.fc_flags |= (rtnh->rtnh_flags & RTNH_F_ONLINK);
                 rt = ip6_route_info_create(&r_cfg, extack);
                 if (IS_ERR(rt)) {
                         err = PTR_ERR(rt);
diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c
index bd6cc688bd19..7a78dcfda68a 100644
--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -93,7 +93,8 @@ static void set_tun_src(struct net *net, struct net_device *dev,
 /* encapsulate an IPv6 packet within an outer IPv6 header with a given SRH */
 int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh, int proto)
 {
-        struct net *net = dev_net(skb_dst(skb)->dev);
+        struct dst_entry *dst = skb_dst(skb);
+        struct net *net = dev_net(dst->dev);
         struct ipv6hdr *hdr, *inner_hdr;
         struct ipv6_sr_hdr *isrh;
         int hdrlen, tot_len, err;
@@ -134,7 +135,7 @@ int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh, int proto)
         isrh->nexthdr = proto;
 
         hdr->daddr = isrh->segments[isrh->first_segment];
-        set_tun_src(net, skb->dev, &hdr->daddr, &hdr->saddr);
+        set_tun_src(net, ip6_dst_idev(dst)->dev, &hdr->daddr, &hdr->saddr);
 
 #ifdef CONFIG_IPV6_SEG6_HMAC
         if (sr_has_hmac(isrh)) {
@@ -418,7 +419,7 @@ static int seg6_build_state(struct nlattr *nla,
 
         slwt = seg6_lwt_lwtunnel(newts);
 
-        err = dst_cache_init(&slwt->cache, GFP_KERNEL);
+        err = dst_cache_init(&slwt->cache, GFP_ATOMIC);
         if (err) {
                 kfree(newts);
                 return err;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 3873d3877135..0195598f7bb5 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -182,7 +182,7 @@ static void ipip6_tunnel_clone_6rd(struct net_device *dev, struct sit_net *sitn)
 #ifdef CONFIG_IPV6_SIT_6RD
         struct ip_tunnel *t = netdev_priv(dev);
 
-        if (t->dev == sitn->fb_tunnel_dev) {
+        if (dev == sitn->fb_tunnel_dev) {
                 ipv6_addr_set(&t->ip6rd.prefix, htonl(0x20020000), 0, 0, 0);
                 t->ip6rd.relay_prefix = 0;
                 t->ip6rd.prefixlen = 16;
@@ -1578,6 +1578,13 @@ static int ipip6_newlink(struct net *src_net, struct net_device *dev,
         if (err < 0)
                 return err;
 
+        if (tb[IFLA_MTU]) {
+                u32 mtu = nla_get_u32(tb[IFLA_MTU]);
+
+                if (mtu >= IPV6_MIN_MTU && mtu <= 0xFFF8 - dev->hard_header_len)
+                        dev->mtu = mtu;
+        }
+
 #ifdef CONFIG_IPV6_SIT_6RD
         if (ipip6_netlink_6rd_parms(data, &ip6rd))
                 err = ipip6_tunnel_update_6rd(nt, &ip6rd);
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index bb935a3b7fea..de1b0b8c53b0 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -92,7 +92,8 @@ static int xfrm6_mode_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
 
         skb_reset_network_header(skb);
         skb_mac_header_rebuild(skb);
-        eth_hdr(skb)->h_proto = skb->protocol;
+        if (skb->mac_len)
+                eth_hdr(skb)->h_proto = skb->protocol;
 
         err = 0;
 
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 8ae87d4ec5ff..5959ce9620eb 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -82,7 +82,7 @@ static int xfrm6_tunnel_check_size(struct sk_buff *skb)
 
         if ((!skb_is_gso(skb) && skb->len > mtu) ||
             (skb_is_gso(skb) &&
-             skb_gso_network_seglen(skb) > ip6_skb_dst_mtu(skb))) {
+             !skb_gso_validate_network_len(skb, ip6_skb_dst_mtu(skb)))) {
                 skb->dev = dst->dev;
                 skb->protocol = htons(ETH_P_IPV6);
 
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 09fb44ee3b45..416fe67271a9 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -113,6 +113,9 @@ static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
         xdst->u.rt6.rt6i_gateway = rt->rt6i_gateway;
         xdst->u.rt6.rt6i_dst = rt->rt6i_dst;
         xdst->u.rt6.rt6i_src = rt->rt6i_src;
+        INIT_LIST_HEAD(&xdst->u.rt6.rt6i_uncached);
+        rt6_uncached_list_add(&xdst->u.rt6);
+        atomic_inc(&dev_net(dev)->ipv6.rt6_stats->fib_rt_uncache);
 
         return 0;
 }
@@ -244,6 +247,8 @@ static void xfrm6_dst_destroy(struct dst_entry *dst)
         if (likely(xdst->u.rt6.rt6i_idev))
                 in6_dev_put(xdst->u.rt6.rt6i_idev);
         dst_destroy_metrics_generic(dst);
+        if (xdst->u.rt6.rt6i_uncached_list)
+                rt6_uncached_list_del(&xdst->u.rt6);
         xfrm_dst_destroy(xdst);
 }
 
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 1e8cc7bcbca3..9e2643ab4ccb 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -2433,9 +2433,11 @@ static int afiucv_iucv_init(void)
         af_iucv_dev->driver = &af_iucv_driver;
         err = device_register(af_iucv_dev);
         if (err)
-                goto out_driver;
+                goto out_iucv_dev;
         return 0;
 
+out_iucv_dev:
+        put_device(af_iucv_dev);
 out_driver:
         driver_unregister(&af_iucv_driver);
 out_iucv:
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index f297d53a11aa..34355fd19f27 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -1381,24 +1381,32 @@ static int kcm_attach(struct socket *sock, struct socket *csock,
                 .parse_msg = kcm_parse_func_strparser,
                 .read_sock_done = kcm_read_sock_done,
         };
-        int err;
+        int err = 0;
 
         csk = csock->sk;
         if (!csk)
                 return -EINVAL;
 
+        lock_sock(csk);
+
         /* Only allow TCP sockets to be attached for now */
         if ((csk->sk_family != AF_INET && csk->sk_family != AF_INET6) ||
-            csk->sk_protocol != IPPROTO_TCP)
-                return -EOPNOTSUPP;
+            csk->sk_protocol != IPPROTO_TCP) {
+                err = -EOPNOTSUPP;
+                goto out;
+        }
 
         /* Don't allow listeners or closed sockets */
-        if (csk->sk_state == TCP_LISTEN || csk->sk_state == TCP_CLOSE)
-                return -EOPNOTSUPP;
+        if (csk->sk_state == TCP_LISTEN || csk->sk_state == TCP_CLOSE) {
+                err = -EOPNOTSUPP;
+                goto out;
+        }
 
         psock = kmem_cache_zalloc(kcm_psockp, GFP_KERNEL);
-        if (!psock)
-                return -ENOMEM;
+        if (!psock) {
+                err = -ENOMEM;
+                goto out;
+        }
 
         psock->mux = mux;
         psock->sk = csk;
@@ -1407,7 +1415,7 @@ static int kcm_attach(struct socket *sock, struct socket *csock,
         err = strp_init(&psock->strp, csk, &cb);
         if (err) {
                 kmem_cache_free(kcm_psockp, psock);
-                return err;
+                goto out;
         }
 
         write_lock_bh(&csk->sk_callback_lock);
@@ -1419,7 +1427,8 @@ static int kcm_attach(struct socket *sock, struct socket *csock,
                 write_unlock_bh(&csk->sk_callback_lock);
                 strp_done(&psock->strp);
                 kmem_cache_free(kcm_psockp, psock);
-                return -EALREADY;
+                err = -EALREADY;
+                goto out;
         }
 
         psock->save_data_ready = csk->sk_data_ready;
@@ -1455,7 +1464,10 @@ static int kcm_attach(struct socket *sock, struct socket *csock,
         /* Schedule RX work in case there are already bytes queued */
         strp_check_rcv(&psock->strp);
 
-        return 0;
+out:
+        release_sock(csk);
+
+        return err;
 }
 
 static int kcm_attach_ioctl(struct socket *sock, struct kcm_attach *info)
@@ -1507,6 +1519,7 @@ static void kcm_unattach(struct kcm_psock *psock)
 
         if (WARN_ON(psock->rx_kcm)) {
                 write_unlock_bh(&csk->sk_callback_lock);
+                release_sock(csk);
                 return;
         }
 
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 194a7483bb93..14b67dfacc4b 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -111,6 +111,13 @@ struct l2tp_net {
         spinlock_t l2tp_session_hlist_lock;
 };
 
+#if IS_ENABLED(CONFIG_IPV6)
+static bool l2tp_sk_is_v6(struct sock *sk)
+{
+        return sk->sk_family == PF_INET6 &&
+               !ipv6_addr_v4mapped(&sk->sk_v6_daddr);
+}
+#endif
 
 static inline struct l2tp_tunnel *l2tp_tunnel(struct sock *sk)
 {
@@ -136,51 +143,6 @@ l2tp_session_id_hash_2(struct l2tp_net *pn, u32 session_id)
 
 }
 
-/* Lookup the tunnel socket, possibly involving the fs code if the socket is
- * owned by userspace.  A struct sock returned from this function must be
- * released using l2tp_tunnel_sock_put once you're done with it.
- */
-static struct sock *l2tp_tunnel_sock_lookup(struct l2tp_tunnel *tunnel)
-{
-        int err = 0;
-        struct socket *sock = NULL;
-        struct sock *sk = NULL;
-
-        if (!tunnel)
-                goto out;
-
-        if (tunnel->fd >= 0) {
-                /* Socket is owned by userspace, who might be in the process
-                 * of closing it.  Look the socket up using the fd to ensure
-                 * consistency.
-                 */
-                sock = sockfd_lookup(tunnel->fd, &err);
-                if (sock)
-                        sk = sock->sk;
-        } else {
-                /* Socket is owned by kernelspace */
-                sk = tunnel->sock;
-                sock_hold(sk);
-        }
-
-out:
-        return sk;
-}
-
-/* Drop a reference to a tunnel socket obtained via. l2tp_tunnel_sock_put */
-static void l2tp_tunnel_sock_put(struct sock *sk)
-{
-        struct l2tp_tunnel *tunnel = l2tp_sock_to_tunnel(sk);
-        if (tunnel) {
-                if (tunnel->fd >= 0) {
-                        /* Socket is owned by userspace */
-                        sockfd_put(sk->sk_socket);
-                }
-                sock_put(sk);
-        }
-        sock_put(sk);
-}
-
 /* Session hash list.
  * The session_id SHOULD be random according to RFC2661, but several
  * L2TP implementations (Cisco and Microsoft) use incrementing
@@ -193,6 +155,13 @@ l2tp_session_id_hash(struct l2tp_tunnel *tunnel, u32 session_id)
         return &tunnel->session_hlist[hash_32(session_id, L2TP_HASH_BITS)];
 }
 
+void l2tp_tunnel_free(struct l2tp_tunnel *tunnel)
+{
+        sock_put(tunnel->sock);
+        /* the tunnel is freed in the socket destructor */
+}
+EXPORT_SYMBOL(l2tp_tunnel_free);
+
 /* Lookup a tunnel. A new reference is held on the returned tunnel. */
 struct l2tp_tunnel *l2tp_tunnel_get(const struct net *net, u32 tunnel_id)
 {
@@ -345,13 +314,11 @@ int l2tp_session_register(struct l2tp_session *session,
                         }
 
                 l2tp_tunnel_inc_refcount(tunnel);
-                sock_hold(tunnel->sock);
                 hlist_add_head_rcu(&session->global_hlist, g_head);
 
                 spin_unlock_bh(&pn->l2tp_session_hlist_lock);
         } else {
                 l2tp_tunnel_inc_refcount(tunnel);
-                sock_hold(tunnel->sock);
         }
 
         hlist_add_head(&session->hlist, head);
@@ -969,7 +936,7 @@ int l2tp_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
 {
         struct l2tp_tunnel *tunnel;
 
-        tunnel = l2tp_sock_to_tunnel(sk);
+        tunnel = l2tp_tunnel(sk);
         if (tunnel == NULL)
                 goto pass_up;
 
@@ -977,13 +944,10 @@ int l2tp_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
                  tunnel->name, skb->len);
 
         if (l2tp_udp_recv_core(tunnel, skb, tunnel->recv_payload_hook))
-                goto pass_up_put;
+                goto pass_up;
 
-        sock_put(sk);
         return 0;
 
-pass_up_put:
-        sock_put(sk);
 pass_up:
         return 1;
 }
@@ -1092,7 +1056,7 @@ static int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb,
         /* Queue the packet to IP for output */
         skb->ignore_df = 1;
 #if IS_ENABLED(CONFIG_IPV6)
-        if (tunnel->sock->sk_family == PF_INET6 && !tunnel->v4mapped)
+        if (l2tp_sk_is_v6(tunnel->sock))
                 error = inet6_csk_xmit(tunnel->sock, skb, NULL);
         else
 #endif
@@ -1155,6 +1119,15 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len
                 goto out_unlock;
         }
 
+        /* The user-space may change the connection status for the user-space
+         * provided socket at run time: we must check it under the socket lock
+         */
+        if (tunnel->fd >= 0 && sk->sk_state != TCP_ESTABLISHED) {
+                kfree_skb(skb);
+                ret = NET_XMIT_DROP;
+                goto out_unlock;
+        }
+
         /* Get routing info from the tunnel socket */
         skb_dst_drop(skb);
         skb_dst_set(skb, dst_clone(__sk_dst_check(sk, 0)));
@@ -1174,7 +1147,7 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len
 
                 /* Calculate UDP checksum if configured to do so */
 #if IS_ENABLED(CONFIG_IPV6)
-                if (sk->sk_family == PF_INET6 && !tunnel->v4mapped)
+                if (l2tp_sk_is_v6(sk))
                         udp6_set_csum(udp_get_no_check6_tx(sk),
                                       skb, &inet6_sk(sk)->saddr,
                                       &sk->sk_v6_daddr, udp_len);
@@ -1207,14 +1180,12 @@ EXPORT_SYMBOL_GPL(l2tp_xmit_skb);
 static void l2tp_tunnel_destruct(struct sock *sk)
 {
         struct l2tp_tunnel *tunnel = l2tp_tunnel(sk);
-        struct l2tp_net *pn;
 
         if (tunnel == NULL)
                 goto end;
 
         l2tp_info(tunnel, L2TP_MSG_CONTROL, "%s: closing...\n", tunnel->name);
 
-
         /* Disable udp encapsulation */
         switch (tunnel->encap) {
         case L2TP_ENCAPTYPE_UDP:
@@ -1231,18 +1202,11 @@ static void l2tp_tunnel_destruct(struct sock *sk)
         sk->sk_destruct = tunnel->old_sk_destruct;
         sk->sk_user_data = NULL;
 
-        /* Remove the tunnel struct from the tunnel list */
-        pn = l2tp_pernet(tunnel->l2tp_net);
-        spin_lock_bh(&pn->l2tp_tunnel_list_lock);
-        list_del_rcu(&tunnel->list);
-        spin_unlock_bh(&pn->l2tp_tunnel_list_lock);
-
-        tunnel->sock = NULL;
-        l2tp_tunnel_dec_refcount(tunnel);
-
         /* Call the original destructor */
         if (sk->sk_destruct)
                 (*sk->sk_destruct)(sk);
+
+        kfree_rcu(tunnel, rcu);
 end:
         return;
 }
@@ -1303,49 +1267,43 @@ EXPORT_SYMBOL_GPL(l2tp_tunnel_closeall);
 /* Tunnel socket destroy hook for UDP encapsulation */
 static void l2tp_udp_encap_destroy(struct sock *sk)
 {
-        struct l2tp_tunnel *tunnel = l2tp_sock_to_tunnel(sk);
-        if (tunnel) {
-                l2tp_tunnel_closeall(tunnel);
-                sock_put(sk);
-        }
+        struct l2tp_tunnel *tunnel = l2tp_tunnel(sk);
+
+        if (tunnel)
+                l2tp_tunnel_delete(tunnel);
 }
 
 /* Workqueue tunnel deletion function */
 static void l2tp_tunnel_del_work(struct work_struct *work)
 {
-        struct l2tp_tunnel *tunnel = NULL;
-        struct socket *sock = NULL;
-        struct sock *sk = NULL;
-
-        tunnel = container_of(work, struct l2tp_tunnel, del_work);
+        struct l2tp_tunnel *tunnel = container_of(work, struct l2tp_tunnel,
+                                                  del_work);
+        struct sock *sk = tunnel->sock;
+        struct socket *sock = sk->sk_socket;
+        struct l2tp_net *pn;
 
         l2tp_tunnel_closeall(tunnel);
 
-        sk = l2tp_tunnel_sock_lookup(tunnel);
-        if (!sk)
-                goto out;
-
-        sock = sk->sk_socket;
-
-        /* If the tunnel socket was created by userspace, then go through the
-         * inet layer to shut the socket down, and let userspace close it.
-         * Otherwise, if we created the socket directly within the kernel, use
+        /* If the tunnel socket was created within the kernel, use
          * the sk API to release it here.
-         * In either case the tunnel resources are freed in the socket
-         * destructor when the tunnel socket goes away.
          */
-        if (tunnel->fd >= 0) {
-                if (sock)
-                        inet_shutdown(sock, 2);
-        } else {
+        if (tunnel->fd < 0) {
                 if (sock) {
                         kernel_sock_shutdown(sock, SHUT_RDWR);
                         sock_release(sock);
                 }
         }
 
-        l2tp_tunnel_sock_put(sk);
-out:
+        /* Remove the tunnel struct from the tunnel list */
+        pn = l2tp_pernet(tunnel->l2tp_net);
+        spin_lock_bh(&pn->l2tp_tunnel_list_lock);
+        list_del_rcu(&tunnel->list);
+        spin_unlock_bh(&pn->l2tp_tunnel_list_lock);
+
+        /* drop initial ref */
+        l2tp_tunnel_dec_refcount(tunnel);
+
+        /* drop workqueue ref */
         l2tp_tunnel_dec_refcount(tunnel);
 }
 
@@ -1515,9 +1473,14 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
                 encap = cfg->encap;
 
         /* Quick sanity checks */
+        err = -EPROTONOSUPPORT;
+        if (sk->sk_type != SOCK_DGRAM) {
+                pr_debug("tunl %hu: fd %d wrong socket type\n",
+                         tunnel_id, fd);
+                goto err;
+        }
         switch (encap) {
         case L2TP_ENCAPTYPE_UDP:
-                err = -EPROTONOSUPPORT;
                 if (sk->sk_protocol != IPPROTO_UDP) {
                         pr_err("tunl %hu: fd %d wrong protocol, got %d, expected %d\n",
                                tunnel_id, fd, sk->sk_protocol, IPPROTO_UDP);
@@ -1525,7 +1488,6 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
                 }
                 break;
         case L2TP_ENCAPTYPE_IP:
-                err = -EPROTONOSUPPORT;
                 if (sk->sk_protocol != IPPROTO_L2TP) {
                         pr_err("tunl %hu: fd %d wrong protocol, got %d, expected %d\n",
                                tunnel_id, fd, sk->sk_protocol, IPPROTO_L2TP);
@@ -1565,24 +1527,6 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
         if (cfg != NULL)
                 tunnel->debug = cfg->debug;
 
-#if IS_ENABLED(CONFIG_IPV6)
-        if (sk->sk_family == PF_INET6) {
-                struct ipv6_pinfo *np = inet6_sk(sk);
-
-                if (ipv6_addr_v4mapped(&np->saddr) &&
-                    ipv6_addr_v4mapped(&sk->sk_v6_daddr)) {
-                        struct inet_sock *inet = inet_sk(sk);
-
-                        tunnel->v4mapped = true;
-                        inet->inet_saddr = np->saddr.s6_addr32[3];
-                        inet->inet_rcv_saddr = sk->sk_v6_rcv_saddr.s6_addr32[3];
-                        inet->inet_daddr = sk->sk_v6_daddr.s6_addr32[3];
-                } else {
-                        tunnel->v4mapped = false;
-                }
-        }
-#endif
-
         /* Mark socket as an encapsulation socket. See net/ipv4/udp.c */
         tunnel->encap = encap;
         if (encap == L2TP_ENCAPTYPE_UDP) {
@@ -1598,13 +1542,22 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
                 sk->sk_user_data = tunnel;
         }
 
+        /* Bump the reference count. The tunnel context is deleted
+         * only when this drops to zero. A reference is also held on
+         * the tunnel socket to ensure that it is not released while
+         * the tunnel is extant. Must be done before sk_destruct is
+         * set.
+         */
+        refcount_set(&tunnel->ref_count, 1);
+        sock_hold(sk);
+        tunnel->sock = sk;
+        tunnel->fd = fd;
+
         /* Hook on the tunnel socket destructor so that we can cleanup
          * if the tunnel socket goes away.
          */
         tunnel->old_sk_destruct = sk->sk_destruct;
         sk->sk_destruct = &l2tp_tunnel_destruct;
-        tunnel->sock = sk;
-        tunnel->fd = fd;
         lockdep_set_class_and_name(&sk->sk_lock.slock, &l2tp_socket_class, "l2tp_sock");
 
         sk->sk_allocation = GFP_ATOMIC;
@@ -1614,11 +1567,6 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
 
         /* Add tunnel to our list */
         INIT_LIST_HEAD(&tunnel->list);
-
-        /* Bump the reference count. The tunnel context is deleted
-         * only when this drops to zero. Must be done before list insertion
-         */
-        refcount_set(&tunnel->ref_count, 1);
         spin_lock_bh(&pn->l2tp_tunnel_list_lock);
         list_add_rcu(&tunnel->list, &pn->l2tp_tunnel_list);
         spin_unlock_bh(&pn->l2tp_tunnel_list_lock);
@@ -1659,8 +1607,6 @@ void l2tp_session_free(struct l2tp_session *session)
 
         if (tunnel) {
                 BUG_ON(tunnel->magic != L2TP_TUNNEL_MAGIC);
-                sock_put(tunnel->sock);
-                session->tunnel = NULL;
                 l2tp_tunnel_dec_refcount(tunnel);
         }
 
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index 9bbee90e9963..2718d0b284d0 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -188,9 +188,6 @@ struct l2tp_tunnel {
         struct sock             *sock;          /* Parent socket */
         int                     fd;             /* Parent fd, if tunnel socket
                                                  * was created by userspace */
-#if IS_ENABLED(CONFIG_IPV6)
-        bool                    v4mapped;
-#endif
 
         struct work_struct      del_work;
 
@@ -214,27 +211,8 @@ static inline void *l2tp_session_priv(struct l2tp_session *session)
         return &session->priv[0];
 }
 
-static inline struct l2tp_tunnel *l2tp_sock_to_tunnel(struct sock *sk)
-{
-        struct l2tp_tunnel *tunnel;
-
-        if (sk == NULL)
-                return NULL;
-
-        sock_hold(sk);
-        tunnel = (struct l2tp_tunnel *)(sk->sk_user_data);
-        if (tunnel == NULL) {
-                sock_put(sk);
-                goto out;
-        }
-
-        BUG_ON(tunnel->magic != L2TP_TUNNEL_MAGIC);
-
-out:
-        return tunnel;
-}
-
 struct l2tp_tunnel *l2tp_tunnel_get(const struct net *net, u32 tunnel_id);
+void l2tp_tunnel_free(struct l2tp_tunnel *tunnel);
 
 struct l2tp_session *l2tp_session_get(const struct net *net,
                                       struct l2tp_tunnel *tunnel,
@@ -283,7 +261,7 @@ static inline void l2tp_tunnel_inc_refcount(struct l2tp_tunnel *tunnel)
 static inline void l2tp_tunnel_dec_refcount(struct l2tp_tunnel *tunnel)
 {
         if (refcount_dec_and_test(&tunnel->ref_count))
-                kfree_rcu(tunnel, rcu);
+                l2tp_tunnel_free(tunnel);
 }
 
 /* Session reference counts. Incremented when code obtains a reference
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index ff61124fdf59..3428fba6f2b7 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -234,17 +234,13 @@ static void l2tp_ip_close(struct sock *sk, long timeout)
 static void l2tp_ip_destroy_sock(struct sock *sk)
 {
         struct sk_buff *skb;
-        struct l2tp_tunnel *tunnel = l2tp_sock_to_tunnel(sk);
+        struct l2tp_tunnel *tunnel = sk->sk_user_data;
 
         while ((skb = __skb_dequeue_tail(&sk->sk_write_queue)) != NULL)
                 kfree_skb(skb);
 
-        if (tunnel) {
-                l2tp_tunnel_closeall(tunnel);
-                sock_put(sk);
-        }
-
-        sk_refcnt_debug_dec(sk);
+        if (tunnel)
+                l2tp_tunnel_delete(tunnel);
 }
 
 static int l2tp_ip_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index 192344688c06..6f009eaa5fbe 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -248,16 +248,14 @@ static void l2tp_ip6_close(struct sock *sk, long timeout)
 
 static void l2tp_ip6_destroy_sock(struct sock *sk)
 {
-        struct l2tp_tunnel *tunnel = l2tp_sock_to_tunnel(sk);
+        struct l2tp_tunnel *tunnel = sk->sk_user_data;
 
         lock_sock(sk);
         ip6_flush_pending_frames(sk);
         release_sock(sk);
 
-        if (tunnel) {
-                l2tp_tunnel_closeall(tunnel);
-                sock_put(sk);
-        }
+        if (tunnel)
+                l2tp_tunnel_delete(tunnel);
 
         inet6_destroy_sock(sk);
 }
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 59f246d7b290..3b02f24ea9ec 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -416,20 +416,28 @@ abort:
  * Session (and tunnel control) socket create/destroy.
  *****************************************************************************/
 
+static void pppol2tp_put_sk(struct rcu_head *head)
+{
+        struct pppol2tp_session *ps;
+
+        ps = container_of(head, typeof(*ps), rcu);
+        sock_put(ps->__sk);
+}
+
 /* Called by l2tp_core when a session socket is being closed.
  */
 static void pppol2tp_session_close(struct l2tp_session *session)
 {
-        struct sock *sk;
-
-        BUG_ON(session->magic != L2TP_SESSION_MAGIC);
+        struct pppol2tp_session *ps;
 
-        sk = pppol2tp_session_get_sock(session);
-        if (sk) {
-                if (sk->sk_socket)
-                        inet_shutdown(sk->sk_socket, SEND_SHUTDOWN);
-                sock_put(sk);
-        }
+        ps = l2tp_session_priv(session);
+        mutex_lock(&ps->sk_lock);
+        ps->__sk = rcu_dereference_protected(ps->sk,
+                                             lockdep_is_held(&ps->sk_lock));
+        RCU_INIT_POINTER(ps->sk, NULL);
+        if (ps->__sk)
+                call_rcu(&ps->rcu, pppol2tp_put_sk);
+        mutex_unlock(&ps->sk_lock);
 }
 
 /* Really kill the session socket. (Called from sock_put() if
@@ -449,14 +457,6 @@ static void pppol2tp_session_destruct(struct sock *sk)
         }
 }
 
-static void pppol2tp_put_sk(struct rcu_head *head)
-{
-        struct pppol2tp_session *ps;
-
-        ps = container_of(head, typeof(*ps), rcu);
-        sock_put(ps->__sk);
-}
-
 /* Called when the PPPoX socket (session) is closed.
  */
 static int pppol2tp_release(struct socket *sock)
@@ -480,26 +480,17 @@ static int pppol2tp_release(struct socket *sock)
         sock_orphan(sk);
         sock->sk = NULL;
 
+        /* If the socket is associated with a session,
+         * l2tp_session_delete will call pppol2tp_session_close which
+         * will drop the session's ref on the socket.
+         */
         session = pppol2tp_sock_to_session(sk);
-
-        if (session != NULL) {
-                struct pppol2tp_session *ps;
-
+        if (session) {
                 l2tp_session_delete(session);
-
-                ps = l2tp_session_priv(session);
-                mutex_lock(&ps->sk_lock);
-                ps->__sk = rcu_dereference_protected(ps->sk,
-                                                     lockdep_is_held(&ps->sk_lock));
-                RCU_INIT_POINTER(ps->sk, NULL);
-                mutex_unlock(&ps->sk_lock);
-                call_rcu(&ps->rcu, pppol2tp_put_sk);
-
-                /* Rely on the sock_put() call at the end of the function for
-                 * dropping the reference held by pppol2tp_sock_to_session().
-                 * The last reference will be dropped by pppol2tp_put_sk().
-                 */
+                /* drop the ref obtained by pppol2tp_sock_to_session */
+                sock_put(sk);
         }
+
         release_sock(sk);
 
         /* This will delete the session context via
@@ -796,6 +787,7 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
 
 out_no_ppp:
         /* This is how we get the session context from the socket. */
+        sock_hold(sk);
         sk->sk_user_data = session;
         rcu_assign_pointer(ps->sk, sk);
         mutex_unlock(&ps->sk_lock);
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index a8b1616cec41..1f3188d03840 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -8,6 +8,7 @@
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * Copyright 2007-2010, Intel Corporation
  * Copyright(c) 2015-2017 Intel Deutschland GmbH
+ * Copyright (C) 2018        Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -304,9 +305,6 @@ void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
                          * driver so reject the timeout update.
                          */
                         status = WLAN_STATUS_REQUEST_DECLINED;
-                        ieee80211_send_addba_resp(sta->sdata, sta->sta.addr,
-                                                  tid, dialog_token, status,
-                                                  1, buf_size, timeout);
                         goto end;
                 }
 
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 46028e12e216..f4195a0f0279 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2892,7 +2892,7 @@ cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
         }
         if (beacon->probe_resp_len) {
                 new_beacon->probe_resp_len = beacon->probe_resp_len;
-                beacon->probe_resp = pos;
+                new_beacon->probe_resp = pos;
                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
                 pos += beacon->probe_resp_len;
         }
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 1f466d12a6bc..94c7ee9df33b 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -212,6 +212,7 @@ static const char *hw_flag_names[] = {
         FLAG(REPORTS_LOW_ACK),
         FLAG(SUPPORTS_TX_FRAG),
         FLAG(SUPPORTS_TDLS_BUFFER_STA),
+        FLAG(DOESNT_SUPPORT_QOS_NDP),
 #undef FLAG
 };
 
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 26900025de2f..ae9c33cd8ada 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1467,7 +1467,7 @@ struct ieee802_11_elems {
         const struct ieee80211_timeout_interval_ie *timeout_int;
         const u8 *opmode_notif;
         const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
-        const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
+        struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
         const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
 
         /* length of them, respectively */
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 73ac607beb5d..6a381cbe1e33 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -1255,13 +1255,12 @@ int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
 }
 
 static int mesh_fwd_csa_frame(struct ieee80211_sub_if_data *sdata,
-                               struct ieee80211_mgmt *mgmt, size_t len)
+                               struct ieee80211_mgmt *mgmt, size_t len,
+                               struct ieee802_11_elems *elems)
 {
         struct ieee80211_mgmt *mgmt_fwd;
         struct sk_buff *skb;
         struct ieee80211_local *local = sdata->local;
-        u8 *pos = mgmt->u.action.u.chan_switch.variable;
-        size_t offset_ttl;
 
         skb = dev_alloc_skb(local->tx_headroom + len);
         if (!skb)
@@ -1269,13 +1268,9 @@ static int mesh_fwd_csa_frame(struct ieee80211_sub_if_data *sdata,
         skb_reserve(skb, local->tx_headroom);
         mgmt_fwd = skb_put(skb, len);
 
-        /* offset_ttl is based on whether the secondary channel
-         * offset is available or not. Subtract 1 from the mesh TTL
-         * and disable the initiator flag before forwarding.
-         */
-        offset_ttl = (len < 42) ? 7 : 10;
-        *(pos + offset_ttl) -= 1;
-        *(pos + offset_ttl + 1) &= ~WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
+        elems->mesh_chansw_params_ie->mesh_ttl--;
+        elems->mesh_chansw_params_ie->mesh_flags &=
+                ~WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
 
         memcpy(mgmt_fwd, mgmt, len);
         eth_broadcast_addr(mgmt_fwd->da);
@@ -1323,7 +1318,7 @@ static void mesh_rx_csa_frame(struct ieee80211_sub_if_data *sdata,
 
         /* forward or re-broadcast the CSA frame */
         if (fwd_csa) {
-                if (mesh_fwd_csa_frame(sdata, mgmt, len) < 0)
+                if (mesh_fwd_csa_frame(sdata, mgmt, len, &elems) < 0)
                         mcsa_dbg(sdata, "Failed to forward the CSA frame");
         }
 }
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 39b660b9a908..5f303abac5ad 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -896,7 +896,8 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
         struct ieee80211_hdr_3addr *nullfunc;
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-        skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, true);
+        skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif,
+                !ieee80211_hw_check(&local->hw, DOESNT_SUPPORT_QOS_NDP));
         if (!skb)
                 return;
 
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index fd580614085b..56fe16b07538 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3921,7 +3921,7 @@ static bool ieee80211_invoke_fast_rx(struct ieee80211_rx_data *rx,
         if ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_FROMDS |
                                               IEEE80211_FCTL_TODS)) !=
             fast_rx->expected_ds_bits)
-                goto drop;
+                return false;
 
         /* assign the key to drop unencrypted frames (later)
          * and strip the IV/MIC if necessary
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index ee0181778a42..029334835747 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -8,6 +8,7 @@
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * Copyright 2007-2008, Intel Corporation
  * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
+ * Copyright (C) 2018        Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -27,7 +28,7 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
                                  u32 sta_flags, u8 *bssid,
                                  struct ieee80211_csa_ie *csa_ie)
 {
-        enum nl80211_band new_band;
+        enum nl80211_band new_band = current_band;
         int new_freq;
         u8 new_chan_no;
         struct ieee80211_channel *new_chan;
@@ -55,15 +56,13 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
                                 elems->ext_chansw_ie->new_operating_class,
                                 &new_band)) {
                         sdata_info(sdata,
-                                   "cannot understand ECSA IE operating class %d, disconnecting\n",
+                                   "cannot understand ECSA IE operating class, %d, ignoring\n",
                                    elems->ext_chansw_ie->new_operating_class);
-                        return -EINVAL;
                 }
                 new_chan_no = elems->ext_chansw_ie->new_ch_num;
                 csa_ie->count = elems->ext_chansw_ie->count;
                 csa_ie->mode = elems->ext_chansw_ie->mode;
         } else if (elems->ch_switch_ie) {
-                new_band = current_band;
                 new_chan_no = elems->ch_switch_ie->new_ch_num;
                 csa_ie->count = elems->ch_switch_ie->count;
                 csa_ie->mode = elems->ch_switch_ie->mode;
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 0c5627f8a104..af0b608ee8ed 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -314,7 +314,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 
         if (ieee80211_hw_check(hw, USES_RSS)) {
                 sta->pcpu_rx_stats =
-                        alloc_percpu(struct ieee80211_sta_rx_stats);
+                        alloc_percpu_gfp(struct ieee80211_sta_rx_stats, gfp);
                 if (!sta->pcpu_rx_stats)
                         goto free;
         }
@@ -433,6 +433,7 @@ free_txq:
         if (sta->sta.txq[0])
                 kfree(to_txq_info(sta->sta.txq[0]));
 free:
+        free_percpu(sta->pcpu_rx_stats);
 #ifdef CONFIG_MAC80211_MESH
         kfree(sta->mesh);
 #endif
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 25904af38839..69722504e3e1 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3574,6 +3574,14 @@ void __ieee80211_subif_start_xmit(struct sk_buff *skb,
         if (!IS_ERR_OR_NULL(sta)) {
                 struct ieee80211_fast_tx *fast_tx;
 
+                /* We need a bit of data queued to build aggregates properly, so
+                 * instruct the TCP stack to allow more than a single ms of data
+                 * to be queued in the stack. The value is a bit-shift of 1
+                 * second, so 8 is ~4ms of queued data. Only affects local TCP
+                 * sockets.
+                 */
+                sk_pacing_shift_update(skb->sk, 8);
+
                 fast_tx = rcu_dereference(sta->fast_tx);
 
                 if (fast_tx &&
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index e545a3c9365f..7a4de6d618b1 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -122,7 +122,7 @@ bool mpls_pkt_too_big(const struct sk_buff *skb, unsigned int mtu)
         if (skb->len <= mtu)
                 return false;
 
-        if (skb_is_gso(skb) && skb_gso_validate_mtu(skb, mtu))
+        if (skb_is_gso(skb) && skb_gso_validate_network_len(skb, mtu))
                 return false;
 
         return true;
diff --git a/net/netfilter/ipvs/ip_vs_ftp.c b/net/netfilter/ipvs/ip_vs_ftp.c
index 3e17d32b629d..58d5d05aec24 100644
--- a/net/netfilter/ipvs/ip_vs_ftp.c
+++ b/net/netfilter/ipvs/ip_vs_ftp.c
@@ -260,7 +260,7 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp,
                 buf_len = strlen(buf);
 
                 ct = nf_ct_get(skb, &ctinfo);
-                if (ct && (ct->status & IPS_NAT_MASK)) {
+                if (ct) {
                         bool mangled;
 
                         /* If mangling fails this function will return 0
diff --git a/net/netfilter/nf_nat_proto_common.c b/net/netfilter/nf_nat_proto_common.c
index fbce552a796e..7d7466dbf663 100644
--- a/net/netfilter/nf_nat_proto_common.c
+++ b/net/netfilter/nf_nat_proto_common.c
@@ -41,7 +41,7 @@ void nf_nat_l4proto_unique_tuple(const struct nf_nat_l3proto *l3proto,
                                  const struct nf_conn *ct,
                                  u16 *rover)
 {
-        unsigned int range_size, min, i;
+        unsigned int range_size, min, max, i;
         __be16 *portptr;
         u_int16_t off;
 
@@ -71,7 +71,10 @@ void nf_nat_l4proto_unique_tuple(const struct nf_nat_l3proto *l3proto,
                 }
         } else {
                 min = ntohs(range->min_proto.all);
-                range_size = ntohs(range->max_proto.all) - min + 1;
+                max = ntohs(range->max_proto.all);
+                if (unlikely(max < min))
+                        swap(max, min);
+                range_size = max - min + 1;
         }
 
         if (range->flags & NF_NAT_RANGE_PROTO_RANDOM) {
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 8b9fe30de0cd..c4acc7340eb1 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -5037,9 +5037,9 @@ static int nf_tables_newflowtable(struct net *net, struct sock *nlsk,
 {
         const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
         const struct nf_flowtable_type *type;
+        struct nft_flowtable *flowtable, *ft;
         u8 genmask = nft_genmask_next(net);
         int family = nfmsg->nfgen_family;
-        struct nft_flowtable *flowtable;
         struct nft_table *table;
         struct nft_ctx ctx;
         int err, i, k;
@@ -5099,6 +5099,22 @@ static int nf_tables_newflowtable(struct net *net, struct sock *nlsk,
                 goto err3;
 
         for (i = 0; i < flowtable->ops_len; i++) {
+                if (!flowtable->ops[i].dev)
+                        continue;
+
+                list_for_each_entry(ft, &table->flowtables, list) {
+                        for (k = 0; k < ft->ops_len; k++) {
+                                if (!ft->ops[k].dev)
+                                        continue;
+
+                                if (flowtable->ops[i].dev == ft->ops[k].dev &&
+                                    flowtable->ops[i].pf == ft->ops[k].pf) {
+                                        err = -EBUSY;
+                                        goto err4;
+                                }
+                        }
+                }
+
                 err = nf_register_net_hook(net, &flowtable->ops[i]);
                 if (err < 0)
                         goto err4;
@@ -5120,7 +5136,7 @@ err5:
         i = flowtable->ops_len;
 err4:
         for (k = i - 1; k >= 0; k--)
-                nf_unregister_net_hook(net, &flowtable->ops[i]);
+                nf_unregister_net_hook(net, &flowtable->ops[k]);
 
         kfree(flowtable->ops);
 err3:
@@ -5145,6 +5161,11 @@ static int nf_tables_delflowtable(struct net *net, struct sock *nlsk,
         struct nft_table *table;
         struct nft_ctx ctx;
 
+        if (!nla[NFTA_FLOWTABLE_TABLE] ||
+            (!nla[NFTA_FLOWTABLE_NAME] &&
+             !nla[NFTA_FLOWTABLE_HANDLE]))
+                return -EINVAL;
+
         table = nf_tables_table_lookup(net, nla[NFTA_FLOWTABLE_TABLE],
                                        family, genmask);
         if (IS_ERR(table))
@@ -5402,6 +5423,7 @@ err:
 static void nf_tables_flowtable_destroy(struct nft_flowtable *flowtable)
 {
         cancel_delayed_work_sync(&flowtable->data.gc_work);
+        kfree(flowtable->ops);
         kfree(flowtable->name);
         flowtable->data.type->free(&flowtable->data);
         rhashtable_destroy(&flowtable->data.rhashtable);
diff --git a/net/netfilter/nft_set_hash.c b/net/netfilter/nft_set_hash.c
index 3f1624ee056f..d40591fe1b2f 100644
--- a/net/netfilter/nft_set_hash.c
+++ b/net/netfilter/nft_set_hash.c
@@ -674,7 +674,7 @@ static const struct nft_set_ops *
 nft_hash_select_ops(const struct nft_ctx *ctx, const struct nft_set_desc *desc,
                     u32 flags)
 {
-        if (desc->size) {
+        if (desc->size && !(flags & NFT_SET_TIMEOUT)) {
                 switch (desc->klen) {
                 case 4:
                         return &nft_hash_fast_ops;
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 2f685ee1f9c8..4aa01c90e9d1 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -423,6 +423,36 @@ textify_hooks(char *buf, size_t size, unsigned int mask, uint8_t nfproto)
         return buf;
 }
 
+/**
+ * xt_check_proc_name - check that name is suitable for /proc file creation
+ *
+ * @name: file name candidate
+ * @size: length of buffer
+ *
+ * some x_tables modules wish to create a file in /proc.
+ * This function makes sure that the name is suitable for this
+ * purpose, it checks that name is NUL terminated and isn't a 'special'
+ * name, like "..".
+ *
+ * returns negative number on error or 0 if name is useable.
+ */
+int xt_check_proc_name(const char *name, unsigned int size)
+{
+        if (name[0] == '\0')
+                return -EINVAL;
+
+        if (strnlen(name, size) == size)
+                return -ENAMETOOLONG;
+
+        if (strcmp(name, ".") == 0 ||
+            strcmp(name, "..") == 0 ||
+            strchr(name, '/'))
+                return -EINVAL;
+
+        return 0;
+}
+EXPORT_SYMBOL(xt_check_proc_name);
+
 int xt_check_match(struct xt_mtchk_param *par,
                    unsigned int size, u_int8_t proto, bool inv_proto)
 {
@@ -434,36 +464,35 @@ int xt_check_match(struct xt_mtchk_param *par,
                  * ebt_among is exempt from centralized matchsize checking
                  * because it uses a dynamic-size data set.
                  */
-                pr_err("%s_tables: %s.%u match: invalid size "
-                       "%u (kernel) != (user) %u\n",
-                       xt_prefix[par->family], par->match->name,
-                       par->match->revision,
-                       XT_ALIGN(par->match->matchsize), size);
+                pr_err_ratelimited("%s_tables: %s.%u match: invalid size %u (kernel) != (user) %u\n",
+                                   xt_prefix[par->family], par->match->name,
+                                   par->match->revision,
+                                   XT_ALIGN(par->match->matchsize), size);
                 return -EINVAL;
         }
         if (par->match->table != NULL &&
             strcmp(par->match->table, par->table) != 0) {
-                pr_err("%s_tables: %s match: only valid in %s table, not %s\n",
-                       xt_prefix[par->family], par->match->name,
-                       par->match->table, par->table);
+                pr_info_ratelimited("%s_tables: %s match: only valid in %s table, not %s\n",
+                                    xt_prefix[par->family], par->match->name,
+                                    par->match->table, par->table);
                 return -EINVAL;
         }
         if (par->match->hooks && (par->hook_mask & ~par->match->hooks) != 0) {
                 char used[64], allow[64];
 
-                pr_err("%s_tables: %s match: used from hooks %s, but only "
-                       "valid from %s\n",
-                       xt_prefix[par->family], par->match->name,
-                       textify_hooks(used, sizeof(used), par->hook_mask,
-                                     par->family),
-                       textify_hooks(allow, sizeof(allow), par->match->hooks,
-                                     par->family));
+                pr_info_ratelimited("%s_tables: %s match: used from hooks %s, but only valid from %s\n",
+                                    xt_prefix[par->family], par->match->name,
+                                    textify_hooks(used, sizeof(used),
+                                                  par->hook_mask, par->family),
+                                    textify_hooks(allow, sizeof(allow),
+                                                  par->match->hooks,
+                                                  par->family));
                 return -EINVAL;
         }
         if (par->match->proto && (par->match->proto != proto || inv_proto)) {
-                pr_err("%s_tables: %s match: only valid for protocol %u\n",
-                       xt_prefix[par->family], par->match->name,
-                       par->match->proto);
+                pr_info_ratelimited("%s_tables: %s match: only valid for protocol %u\n",
+                                    xt_prefix[par->family], par->match->name,
+                                    par->match->proto);
                 return -EINVAL;
         }
         if (par->match->checkentry != NULL) {
@@ -814,36 +843,35 @@ int xt_check_target(struct xt_tgchk_param *par,
         int ret;
 
         if (XT_ALIGN(par->target->targetsize) != size) {
-                pr_err("%s_tables: %s.%u target: invalid size "
-                       "%u (kernel) != (user) %u\n",
-                       xt_prefix[par->family], par->target->name,
-                       par->target->revision,
-                       XT_ALIGN(par->target->targetsize), size);
+                pr_err_ratelimited("%s_tables: %s.%u target: invalid size %u (kernel) != (user) %u\n",
+                                   xt_prefix[par->family], par->target->name,
+                                   par->target->revision,
+                                   XT_ALIGN(par->target->targetsize), size);
                 return -EINVAL;
         }
         if (par->target->table != NULL &&
             strcmp(par->target->table, par->table) != 0) {
-                pr_err("%s_tables: %s target: only valid in %s table, not %s\n",
-                       xt_prefix[par->family], par->target->name,
-                       par->target->table, par->table);
+                pr_info_ratelimited("%s_tables: %s target: only valid in %s table, not %s\n",
+                                    xt_prefix[par->family], par->target->name,
+                                    par->target->table, par->table);
                 return -EINVAL;
         }
         if (par->target->hooks && (par->hook_mask & ~par->target->hooks) != 0) {
                 char used[64], allow[64];
 
-                pr_err("%s_tables: %s target: used from hooks %s, but only "
-                       "usable from %s\n",
-                       xt_prefix[par->family], par->target->name,
-                       textify_hooks(used, sizeof(used), par->hook_mask,
-                                     par->family),
-                       textify_hooks(allow, sizeof(allow), par->target->hooks,
-                                     par->family));
+                pr_info_ratelimited("%s_tables: %s target: used from hooks %s, but only usable from %s\n",
+                                    xt_prefix[par->family], par->target->name,
+                                    textify_hooks(used, sizeof(used),
+                                                  par->hook_mask, par->family),
+                                    textify_hooks(allow, sizeof(allow),
+                                                  par->target->hooks,
+                                                  par->family));
                 return -EINVAL;
         }
         if (par->target->proto && (par->target->proto != proto || inv_proto)) {
-                pr_err("%s_tables: %s target: only valid for protocol %u\n",
-                       xt_prefix[par->family], par->target->name,
-                       par->target->proto);
+                pr_info_ratelimited("%s_tables: %s target: only valid for protocol %u\n",
+                                    xt_prefix[par->family], par->target->name,
+                                    par->target->proto);
                 return -EINVAL;
         }
         if (par->target->checkentry != NULL) {
@@ -1004,10 +1032,6 @@ struct xt_table_info *xt_alloc_table_info(unsigned int size)
         if (sz < sizeof(*info))
                 return NULL;
 
-        /* Pedantry: prevent them from hitting BUG() in vmalloc.c --RR */
-        if ((size >> PAGE_SHIFT) + 2 > totalram_pages)
-                return NULL;
-
         /* __GFP_NORETRY is not fully supported by kvmalloc but it should
          * work reasonably well if sz is too large and bail out rather
          * than shoot all processes down before realizing there is nothing
diff --git a/net/netfilter/xt_AUDIT.c b/net/netfilter/xt_AUDIT.c
index c502419d6306..f368ee6741db 100644
--- a/net/netfilter/xt_AUDIT.c
+++ b/net/netfilter/xt_AUDIT.c
@@ -120,8 +120,8 @@ static int audit_tg_check(const struct xt_tgchk_param *par)
         const struct xt_audit_info *info = par->targinfo;
 
         if (info->type > XT_AUDIT_TYPE_MAX) {
-                pr_info("Audit type out of range (valid range: 0..%hhu)\n",
-                        XT_AUDIT_TYPE_MAX);
+                pr_info_ratelimited("Audit type out of range (valid range: 0..%hhu)\n",
+                                    XT_AUDIT_TYPE_MAX);
                 return -ERANGE;
         }
 
diff --git a/net/netfilter/xt_CHECKSUM.c b/net/netfilter/xt_CHECKSUM.c
index 0f642ef8cd26..9f4151ec3e06 100644
--- a/net/netfilter/xt_CHECKSUM.c
+++ b/net/netfilter/xt_CHECKSUM.c
@@ -36,13 +36,13 @@ static int checksum_tg_check(const struct xt_tgchk_param *par)
         const struct xt_CHECKSUM_info *einfo = par->targinfo;
 
         if (einfo->operation & ~XT_CHECKSUM_OP_FILL) {
-                pr_info("unsupported CHECKSUM operation %x\n", einfo->operation);
+                pr_info_ratelimited("unsupported CHECKSUM operation %x\n",
+                                    einfo->operation);
                 return -EINVAL;
         }
-        if (!einfo->operation) {
-                pr_info("no CHECKSUM operation enabled\n");
+        if (!einfo->operation)
                 return -EINVAL;
-        }
+
         return 0;
 }
 
diff --git a/net/netfilter/xt_CONNSECMARK.c b/net/netfilter/xt_CONNSECMARK.c
index da56c06a443c..f3f1caac949b 100644
--- a/net/netfilter/xt_CONNSECMARK.c
+++ b/net/netfilter/xt_CONNSECMARK.c
@@ -91,8 +91,8 @@ static int connsecmark_tg_check(const struct xt_tgchk_param *par)
 
         if (strcmp(par->table, "mangle") != 0 &&
             strcmp(par->table, "security") != 0) {
-                pr_info("target only valid in the \'mangle\' "
-                        "or \'security\' tables, not \'%s\'.\n", par->table);
+                pr_info_ratelimited("only valid in \'mangle\' or \'security\' table, not \'%s\'\n",
+                                    par->table);
                 return -EINVAL;
         }
 
@@ -102,14 +102,14 @@ static int connsecmark_tg_check(const struct xt_tgchk_param *par)
                 break;
 
         default:
-                pr_info("invalid mode: %hu\n", info->mode);
+                pr_info_ratelimited("invalid mode: %hu\n", info->mode);
                 return -EINVAL;
         }
 
         ret = nf_ct_netns_get(par->net, par->family);
         if (ret < 0)
-                pr_info("cannot load conntrack support for proto=%u\n",
-                        par->family);
+                pr_info_ratelimited("cannot load conntrack support for proto=%u\n",
+                                    par->family);
         return ret;
 }
 
diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c
index 5a152e2acfd5..8790190c6feb 100644
--- a/net/netfilter/xt_CT.c
+++ b/net/netfilter/xt_CT.c
@@ -82,15 +82,14 @@ xt_ct_set_helper(struct nf_conn *ct, const char *helper_name,
 
         proto = xt_ct_find_proto(par);
         if (!proto) {
-                pr_info("You must specify a L4 protocol, and not use "
-                        "inversions on it.\n");
+                pr_info_ratelimited("You must specify a L4 protocol and not use inversions on it\n");
                 return -ENOENT;
         }
 
         helper = nf_conntrack_helper_try_module_get(helper_name, par->family,
                                                     proto);
         if (helper == NULL) {
-                pr_info("No such helper \"%s\"\n", helper_name);
+                pr_info_ratelimited("No such helper \"%s\"\n", helper_name);
                 return -ENOENT;
         }
 
@@ -124,6 +123,7 @@ xt_ct_set_timeout(struct nf_conn *ct, const struct xt_tgchk_param *par,
         const struct nf_conntrack_l4proto *l4proto;
         struct ctnl_timeout *timeout;
         struct nf_conn_timeout *timeout_ext;
+        const char *errmsg = NULL;
         int ret = 0;
         u8 proto;
 
@@ -131,29 +131,29 @@ xt_ct_set_timeout(struct nf_conn *ct, const struct xt_tgchk_param *par,
         timeout_find_get = rcu_dereference(nf_ct_timeout_find_get_hook);
         if (timeout_find_get == NULL) {
                 ret = -ENOENT;
-                pr_info("Timeout policy base is empty\n");
+                errmsg = "Timeout policy base is empty";
                 goto out;
         }
 
         proto = xt_ct_find_proto(par);
         if (!proto) {
                 ret = -EINVAL;
-                pr_info("You must specify a L4 protocol, and not use "
-                        "inversions on it.\n");
+                errmsg = "You must specify a L4 protocol and not use inversions on it";
                 goto out;
         }
 
         timeout = timeout_find_get(par->net, timeout_name);
         if (timeout == NULL) {
                 ret = -ENOENT;
-                pr_info("No such timeout policy \"%s\"\n", timeout_name);
+                pr_info_ratelimited("No such timeout policy \"%s\"\n",
+                                    timeout_name);
                 goto out;
         }
 
         if (timeout->l3num != par->family) {
                 ret = -EINVAL;
-                pr_info("Timeout policy `%s' can only be used by L3 protocol "
-                        "number %d\n", timeout_name, timeout->l3num);
+                pr_info_ratelimited("Timeout policy `%s' can only be used by L%d protocol number %d\n",
+                                    timeout_name, 3, timeout->l3num);
                 goto err_put_timeout;
         }
         /* Make sure the timeout policy matches any existing protocol tracker,
@@ -162,9 +162,8 @@ xt_ct_set_timeout(struct nf_conn *ct, const struct xt_tgchk_param *par,
         l4proto = __nf_ct_l4proto_find(par->family, proto);
         if (timeout->l4proto->l4proto != l4proto->l4proto) {
                 ret = -EINVAL;
-                pr_info("Timeout policy `%s' can only be used by L4 protocol "
-                        "number %d\n",
-                        timeout_name, timeout->l4proto->l4proto);
+                pr_info_ratelimited("Timeout policy `%s' can only be used by L%d protocol number %d\n",
+                                    timeout_name, 4, timeout->l4proto->l4proto);
                 goto err_put_timeout;
         }
         timeout_ext = nf_ct_timeout_ext_add(ct, timeout, GFP_ATOMIC);
@@ -180,6 +179,8 @@ err_put_timeout:
         __xt_ct_tg_timeout_put(timeout);
 out:
         rcu_read_unlock();
+        if (errmsg)
+                pr_info_ratelimited("%s\n", errmsg);
         return ret;
 #else
         return -EOPNOTSUPP;
diff --git a/net/netfilter/xt_DSCP.c b/net/netfilter/xt_DSCP.c
index 3f83d38c4e5b..098ed851b7a7 100644
--- a/net/netfilter/xt_DSCP.c
+++ b/net/netfilter/xt_DSCP.c
@@ -66,10 +66,8 @@ static int dscp_tg_check(const struct xt_tgchk_param *par)
 {
         const struct xt_DSCP_info *info = par->targinfo;
 
-        if (info->dscp > XT_DSCP_MAX) {
-                pr_info("dscp %x out of range\n", info->dscp);
+        if (info->dscp > XT_DSCP_MAX)
                 return -EDOM;
-        }
         return 0;
 }
 
diff --git a/net/netfilter/xt_HL.c b/net/netfilter/xt_HL.c
index 1535e87ed9bd..4653b071bed4 100644
--- a/net/netfilter/xt_HL.c
+++ b/net/netfilter/xt_HL.c
@@ -105,10 +105,8 @@ static int ttl_tg_check(const struct xt_tgchk_param *par)
 {
         const struct ipt_TTL_info *info = par->targinfo;
 
-        if (info->mode > IPT_TTL_MAXMODE) {
-                pr_info("TTL: invalid or unknown mode %u\n", info->mode);
+        if (info->mode > IPT_TTL_MAXMODE)
                 return -EINVAL;
-        }
         if (info->mode != IPT_TTL_SET && info->ttl == 0)
                 return -EINVAL;
         return 0;
@@ -118,15 +116,10 @@ static int hl_tg6_check(const struct xt_tgchk_param *par)
 {
         const struct ip6t_HL_info *info = par->targinfo;
 
-        if (info->mode > IP6T_HL_MAXMODE) {
-                pr_info("invalid or unknown mode %u\n", info->mode);
+        if (info->mode > IP6T_HL_MAXMODE)
                 return -EINVAL;
-        }
-        if (info->mode != IP6T_HL_SET && info->hop_limit == 0) {
-                pr_info("increment/decrement does not "
-                        "make sense with value 0\n");
+        if (info->mode != IP6T_HL_SET && info->hop_limit == 0)
                 return -EINVAL;
-        }
         return 0;
 }
 
diff --git a/net/netfilter/xt_HMARK.c b/net/netfilter/xt_HMARK.c
index 60e6dbe12460..9c75f419cd80 100644
--- a/net/netfilter/xt_HMARK.c
+++ b/net/netfilter/xt_HMARK.c
@@ -9,6 +9,8 @@
  * the Free Software Foundation.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <linux/icmp.h>
@@ -312,29 +314,30 @@ hmark_tg_v4(struct sk_buff *skb, const struct xt_action_param *par)
 static int hmark_tg_check(const struct xt_tgchk_param *par)
 {
         const struct xt_hmark_info *info = par->targinfo;
+        const char *errmsg = "proto mask must be zero with L3 mode";
 
-        if (!info->hmodulus) {
-                pr_info("xt_HMARK: hash modulus can't be zero\n");
+        if (!info->hmodulus)
                 return -EINVAL;
-        }
+
         if (info->proto_mask &&
-            (info->flags & XT_HMARK_FLAG(XT_HMARK_METHOD_L3))) {
-                pr_info("xt_HMARK: proto mask must be zero with L3 mode\n");
-                return -EINVAL;
-        }
+            (info->flags & XT_HMARK_FLAG(XT_HMARK_METHOD_L3)))
+                goto err;
+
         if (info->flags & XT_HMARK_FLAG(XT_HMARK_SPI_MASK) &&
             (info->flags & (XT_HMARK_FLAG(XT_HMARK_SPORT_MASK) |
-                             XT_HMARK_FLAG(XT_HMARK_DPORT_MASK)))) {
-                pr_info("xt_HMARK: spi-mask and port-mask can't be combined\n");
+                             XT_HMARK_FLAG(XT_HMARK_DPORT_MASK))))
                 return -EINVAL;
-        }
+
         if (info->flags & XT_HMARK_FLAG(XT_HMARK_SPI) &&
             (info->flags & (XT_HMARK_FLAG(XT_HMARK_SPORT) |
                              XT_HMARK_FLAG(XT_HMARK_DPORT)))) {
-                pr_info("xt_HMARK: spi-set and port-set can't be combined\n");
-                return -EINVAL;
+                errmsg = "spi-set and port-set can't be combined";
+                goto err;
         }
         return 0;
+err:
+        pr_info_ratelimited("%s\n", errmsg);
+        return -EINVAL;
 }
 
 static struct xt_target hmark_tg_reg[] __read_mostly = {
diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c
index 6c2482b709b1..1ac6600bfafd 100644
--- a/net/netfilter/xt_IDLETIMER.c
+++ b/net/netfilter/xt_IDLETIMER.c
@@ -146,11 +146,11 @@ static int idletimer_tg_create(struct idletimer_tg_info *info)
         timer_setup(&info->timer->timer, idletimer_tg_expired, 0);
         info->timer->refcnt = 1;
 
+        INIT_WORK(&info->timer->work, idletimer_tg_work);
+
         mod_timer(&info->timer->timer,
                   msecs_to_jiffies(info->timeout * 1000) + jiffies);
 
-        INIT_WORK(&info->timer->work, idletimer_tg_work);
-
         return 0;
 
 out_free_attr:
@@ -191,7 +191,10 @@ static int idletimer_tg_checkentry(const struct xt_tgchk_param *par)
                 pr_debug("timeout value is zero\n");
                 return -EINVAL;
         }
-
+        if (info->timeout >= INT_MAX / 1000) {
+                pr_debug("timeout value is too big\n");
+                return -EINVAL;
+        }
         if (info->label[0] == '\0' ||
             strnlen(info->label,
                     MAX_IDLETIMER_LABEL_SIZE) == MAX_IDLETIMER_LABEL_SIZE) {
diff --git a/net/netfilter/xt_LED.c b/net/netfilter/xt_LED.c
index 1dcad893df78..19846445504d 100644
--- a/net/netfilter/xt_LED.c
+++ b/net/netfilter/xt_LED.c
@@ -111,10 +111,8 @@ static int led_tg_check(const struct xt_tgchk_param *par)
         struct xt_led_info_internal *ledinternal;
         int err;
 
-        if (ledinfo->id[0] == '\0') {
-                pr_info("No 'id' parameter given.\n");
+        if (ledinfo->id[0] == '\0')
                 return -EINVAL;
-        }
 
         mutex_lock(&xt_led_mutex);
 
@@ -138,13 +136,14 @@ static int led_tg_check(const struct xt_tgchk_param *par)
 
         err = led_trigger_register(&ledinternal->netfilter_led_trigger);
         if (err) {
-                pr_err("Trigger name is already in use.\n");
+                pr_info_ratelimited("Trigger name is already in use.\n");
                 goto exit_alloc;
         }
 
-        /* See if we need to set up a timer */
-        if (ledinfo->delay > 0)
-                timer_setup(&ledinternal->timer, led_timeout_callback, 0);
+        /* Since the letinternal timer can be shared between multiple targets,
+         * always set it up, even if the current target does not need it
+         */
+        timer_setup(&ledinternal->timer, led_timeout_callback, 0);
 
         list_add_tail(&ledinternal->list, &xt_led_triggers);
 
@@ -181,8 +180,7 @@ static void led_tg_destroy(const struct xt_tgdtor_param *par)
 
         list_del(&ledinternal->list);
 
-        if (ledinfo->delay > 0)
-                del_timer_sync(&ledinternal->timer);
+        del_timer_sync(&ledinternal->timer);
 
         led_trigger_unregister(&ledinternal->netfilter_led_trigger);
 
diff --git a/net/netfilter/xt_NFQUEUE.c b/net/netfilter/xt_NFQUEUE.c
index a360b99a958a..a9aca80a32ae 100644
--- a/net/netfilter/xt_NFQUEUE.c
+++ b/net/netfilter/xt_NFQUEUE.c
@@ -8,6 +8,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/skbuff.h>
 
@@ -67,13 +69,13 @@ static int nfqueue_tg_check(const struct xt_tgchk_param *par)
         init_hashrandom(&jhash_initval);
 
         if (info->queues_total == 0) {
-                pr_err("NFQUEUE: number of total queues is 0\n");
+                pr_info_ratelimited("number of total queues is 0\n");
                 return -EINVAL;
         }
         maxid = info->queues_total - 1 + info->queuenum;
         if (maxid > 0xffff) {
-                pr_err("NFQUEUE: number of queues (%u) out of range (got %u)\n",
-                       info->queues_total, maxid);
+                pr_info_ratelimited("number of queues (%u) out of range (got %u)\n",
+                                    info->queues_total, maxid);
                 return -ERANGE;
         }
         if (par->target->revision == 2 && info->flags > 1)
diff --git a/net/netfilter/xt_SECMARK.c b/net/netfilter/xt_SECMARK.c
index 9faf5e050b79..4ad5fe27e08b 100644
--- a/net/netfilter/xt_SECMARK.c
+++ b/net/netfilter/xt_SECMARK.c
@@ -60,18 +60,20 @@ static int checkentry_lsm(struct xt_secmark_target_info *info)
                                        &info->secid);
         if (err) {
                 if (err == -EINVAL)
-                        pr_info("invalid security context \'%s\'\n", info->secctx);
+                        pr_info_ratelimited("invalid security context \'%s\'\n",
+                                            info->secctx);
                 return err;
         }
 
         if (!info->secid) {
-                pr_info("unable to map security context \'%s\'\n", info->secctx);
+                pr_info_ratelimited("unable to map security context \'%s\'\n",
+                                    info->secctx);
                 return -ENOENT;
         }
 
         err = security_secmark_relabel_packet(info->secid);
         if (err) {
-                pr_info("unable to obtain relabeling permission\n");
+                pr_info_ratelimited("unable to obtain relabeling permission\n");
                 return err;
         }
 
@@ -86,14 +88,14 @@ static int secmark_tg_check(const struct xt_tgchk_param *par)
 
         if (strcmp(par->table, "mangle") != 0 &&
             strcmp(par->table, "security") != 0) {
-                pr_info("target only valid in the \'mangle\' "
-                        "or \'security\' tables, not \'%s\'.\n", par->table);
+                pr_info_ratelimited("only valid in \'mangle\' or \'security\' table, not \'%s\'\n",
+                                    par->table);
                 return -EINVAL;
         }
 
         if (mode && mode != info->mode) {
-                pr_info("mode already set to %hu cannot mix with "
-                        "rules for mode %hu\n", mode, info->mode);
+                pr_info_ratelimited("mode already set to %hu cannot mix with rules for mode %hu\n",
+                                    mode, info->mode);
                 return -EINVAL;
         }
 
@@ -101,7 +103,7 @@ static int secmark_tg_check(const struct xt_tgchk_param *par)
         case SECMARK_MODE_SEL:
                 break;
         default:
-                pr_info("invalid mode: %hu\n", info->mode);
+                pr_info_ratelimited("invalid mode: %hu\n", info->mode);
                 return -EINVAL;
         }
 
diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index 99bb8e410f22..98efb202f8b4 100644
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -273,8 +273,7 @@ static int tcpmss_tg4_check(const struct xt_tgchk_param *par)
             (par->hook_mask & ~((1 << NF_INET_FORWARD) |
                            (1 << NF_INET_LOCAL_OUT) |
                            (1 << NF_INET_POST_ROUTING))) != 0) {
-                pr_info("path-MTU clamping only supported in "
-                        "FORWARD, OUTPUT and POSTROUTING hooks\n");
+                pr_info_ratelimited("path-MTU clamping only supported in FORWARD, OUTPUT and POSTROUTING hooks\n");
                 return -EINVAL;
         }
         if (par->nft_compat)
@@ -283,7 +282,7 @@ static int tcpmss_tg4_check(const struct xt_tgchk_param *par)
         xt_ematch_foreach(ematch, e)
                 if (find_syn_match(ematch))
                         return 0;
-        pr_info("Only works on TCP SYN packets\n");
+        pr_info_ratelimited("Only works on TCP SYN packets\n");
         return -EINVAL;
 }
 
@@ -298,8 +297,7 @@ static int tcpmss_tg6_check(const struct xt_tgchk_param *par)
             (par->hook_mask & ~((1 << NF_INET_FORWARD) |
                            (1 << NF_INET_LOCAL_OUT) |
                            (1 << NF_INET_POST_ROUTING))) != 0) {
-                pr_info("path-MTU clamping only supported in "
-                        "FORWARD, OUTPUT and POSTROUTING hooks\n");
+                pr_info_ratelimited("path-MTU clamping only supported in FORWARD, OUTPUT and POSTROUTING hooks\n");
                 return -EINVAL;
         }
         if (par->nft_compat)
@@ -308,7 +306,7 @@ static int tcpmss_tg6_check(const struct xt_tgchk_param *par)
         xt_ematch_foreach(ematch, e)
                 if (find_syn_match(ematch))
                         return 0;
-        pr_info("Only works on TCP SYN packets\n");
+        pr_info_ratelimited("Only works on TCP SYN packets\n");
         return -EINVAL;
 }
 #endif
diff --git a/net/netfilter/xt_TPROXY.c b/net/netfilter/xt_TPROXY.c
index 17d7705e3bd4..8c89323c06af 100644
--- a/net/netfilter/xt_TPROXY.c
+++ b/net/netfilter/xt_TPROXY.c
@@ -540,8 +540,7 @@ static int tproxy_tg6_check(const struct xt_tgchk_param *par)
             !(i->invflags & IP6T_INV_PROTO))
                 return 0;
 
-        pr_info("Can be used only in combination with "
-                "either -p tcp or -p udp\n");
+        pr_info_ratelimited("Can be used only with -p tcp or -p udp\n");
         return -EINVAL;
 }
 #endif
@@ -559,8 +558,7 @@ static int tproxy_tg4_check(const struct xt_tgchk_param *par)
             && !(i->invflags & IPT_INV_PROTO))
                 return 0;
 
-        pr_info("Can be used only in combination with "
-                "either -p tcp or -p udp\n");
+        pr_info_ratelimited("Can be used only with -p tcp or -p udp\n");
         return -EINVAL;
 }
 
diff --git a/net/netfilter/xt_addrtype.c b/net/netfilter/xt_addrtype.c
index 911a7c0da504..89e281b3bfc2 100644
--- a/net/netfilter/xt_addrtype.c
+++ b/net/netfilter/xt_addrtype.c
@@ -164,48 +164,47 @@ addrtype_mt_v1(const struct sk_buff *skb, struct xt_action_param *par)
 
 static int addrtype_mt_checkentry_v1(const struct xt_mtchk_param *par)
 {
+        const char *errmsg = "both incoming and outgoing interface limitation cannot be selected";
         struct xt_addrtype_info_v1 *info = par->matchinfo;
 
         if (info->flags & XT_ADDRTYPE_LIMIT_IFACE_IN &&
-            info->flags & XT_ADDRTYPE_LIMIT_IFACE_OUT) {
-                pr_info("both incoming and outgoing "
-                        "interface limitation cannot be selected\n");
-                return -EINVAL;
-        }
+            info->flags & XT_ADDRTYPE_LIMIT_IFACE_OUT)
+                goto err;
 
         if (par->hook_mask & ((1 << NF_INET_PRE_ROUTING) |
             (1 << NF_INET_LOCAL_IN)) &&
             info->flags & XT_ADDRTYPE_LIMIT_IFACE_OUT) {
-                pr_info("output interface limitation "
-                        "not valid in PREROUTING and INPUT\n");
-                return -EINVAL;
+                errmsg = "output interface limitation not valid in PREROUTING and INPUT";
+                goto err;
         }
 
         if (par->hook_mask & ((1 << NF_INET_POST_ROUTING) |
             (1 << NF_INET_LOCAL_OUT)) &&
             info->flags & XT_ADDRTYPE_LIMIT_IFACE_IN) {
-                pr_info("input interface limitation "
-                        "not valid in POSTROUTING and OUTPUT\n");
-                return -EINVAL;
+                errmsg = "input interface limitation not valid in POSTROUTING and OUTPUT";
+                goto err;
         }
 
 #if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
         if (par->family == NFPROTO_IPV6) {
                 if ((info->source | info->dest) & XT_ADDRTYPE_BLACKHOLE) {
-                        pr_err("ipv6 BLACKHOLE matching not supported\n");
-                        return -EINVAL;
+                        errmsg = "ipv6 BLACKHOLE matching not supported";
+                        goto err;
                 }
                 if ((info->source | info->dest) >= XT_ADDRTYPE_PROHIBIT) {
-                        pr_err("ipv6 PROHIBIT (THROW, NAT ..) matching not supported\n");
-                        return -EINVAL;
+                        errmsg = "ipv6 PROHIBIT (THROW, NAT ..) matching not supported";
+                        goto err;
                 }
                 if ((info->source | info->dest) & XT_ADDRTYPE_BROADCAST) {
-                        pr_err("ipv6 does not support BROADCAST matching\n");
-                        return -EINVAL;
+                        errmsg = "ipv6 does not support BROADCAST matching";
+                        goto err;
                 }
         }
 #endif
         return 0;
+err:
+        pr_info_ratelimited("%s\n", errmsg);
+        return -EINVAL;
 }
 
 static struct xt_match addrtype_mt_reg[] __read_mostly = {
diff --git a/net/netfilter/xt_bpf.c b/net/netfilter/xt_bpf.c
index 06b090d8e901..a2cf8a6236d6 100644
--- a/net/netfilter/xt_bpf.c
+++ b/net/netfilter/xt_bpf.c
@@ -7,6 +7,8 @@
  * published by the Free Software Foundation.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/syscalls.h>
 #include <linux/skbuff.h>
@@ -34,7 +36,7 @@ static int __bpf_mt_check_bytecode(struct sock_filter *insns, __u16 len,
         program.filter = insns;
 
         if (bpf_prog_create(ret, &program)) {
-                pr_info("bpf: check failed: parse error\n");
+                pr_info_ratelimited("check failed: parse error\n");
                 return -EINVAL;
         }
 
diff --git a/net/netfilter/xt_cgroup.c b/net/netfilter/xt_cgroup.c
index 891f4e7e8ea7..7df2dece57d3 100644
--- a/net/netfilter/xt_cgroup.c
+++ b/net/netfilter/xt_cgroup.c
@@ -12,6 +12,8 @@
  * published by the Free Software Foundation.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/skbuff.h>
 #include <linux/module.h>
 #include <linux/netfilter/x_tables.h>
@@ -48,7 +50,7 @@ static int cgroup_mt_check_v1(const struct xt_mtchk_param *par)
         }
 
         if (info->has_path && info->has_classid) {
-                pr_info("xt_cgroup: both path and classid specified\n");
+                pr_info_ratelimited("path and classid specified\n");
                 return -EINVAL;
         }
 
@@ -56,8 +58,8 @@ static int cgroup_mt_check_v1(const struct xt_mtchk_param *par)
         if (info->has_path) {
                 cgrp = cgroup_get_from_path(info->path);
                 if (IS_ERR(cgrp)) {
-                        pr_info("xt_cgroup: invalid path, errno=%ld\n",
-                                PTR_ERR(cgrp));
+                        pr_info_ratelimited("invalid path, errno=%ld\n",
+                                            PTR_ERR(cgrp));
                         return -EINVAL;
                 }
                 info->priv = cgrp;
diff --git a/net/netfilter/xt_cluster.c b/net/netfilter/xt_cluster.c
index 57ef175dfbfa..0068688995c8 100644
--- a/net/netfilter/xt_cluster.c
+++ b/net/netfilter/xt_cluster.c
@@ -135,14 +135,12 @@ static int xt_cluster_mt_checkentry(const struct xt_mtchk_param *par)
         struct xt_cluster_match_info *info = par->matchinfo;
 
         if (info->total_nodes > XT_CLUSTER_NODES_MAX) {
-                pr_info("you have exceeded the maximum "
-                        "number of cluster nodes (%u > %u)\n",
-                        info->total_nodes, XT_CLUSTER_NODES_MAX);
+                pr_info_ratelimited("you have exceeded the maximum number of cluster nodes (%u > %u)\n",
+                                    info->total_nodes, XT_CLUSTER_NODES_MAX);
                 return -EINVAL;
         }
         if (info->node_mask >= (1ULL << info->total_nodes)) {
-                pr_info("this node mask cannot be "
-                        "higher than the total number of nodes\n");
+                pr_info_ratelimited("node mask cannot exceed total number of nodes\n");
                 return -EDOM;
         }
         return 0;
diff --git a/net/netfilter/xt_connbytes.c b/net/netfilter/xt_connbytes.c
index cad0b7b5eb35..93cb018c3055 100644
--- a/net/netfilter/xt_connbytes.c
+++ b/net/netfilter/xt_connbytes.c
@@ -112,8 +112,8 @@ static int connbytes_mt_check(const struct xt_mtchk_param *par)
 
         ret = nf_ct_netns_get(par->net, par->family);
         if (ret < 0)
-                pr_info("cannot load conntrack support for proto=%u\n",
-                        par->family);
+                pr_info_ratelimited("cannot load conntrack support for proto=%u\n",
+                                    par->family);
 
         /*
          * This filter cannot function correctly unless connection tracking
diff --git a/net/netfilter/xt_connlabel.c b/net/netfilter/xt_connlabel.c
index 23372879e6e3..4fa4efd24353 100644
--- a/net/netfilter/xt_connlabel.c
+++ b/net/netfilter/xt_connlabel.c
@@ -57,14 +57,15 @@ static int connlabel_mt_check(const struct xt_mtchk_param *par)
         int ret;
 
         if (info->options & ~options) {
-                pr_err("Unknown options in mask %x\n", info->options);
+                pr_info_ratelimited("Unknown options in mask %x\n",
+                                    info->options);
                 return -EINVAL;
         }
 
         ret = nf_ct_netns_get(par->net, par->family);
         if (ret < 0) {
-                pr_info("cannot load conntrack support for proto=%u\n",
-                                                        par->family);
+                pr_info_ratelimited("cannot load conntrack support for proto=%u\n",
+                                    par->family);
                 return ret;
         }
 
diff --git a/net/netfilter/xt_connmark.c b/net/netfilter/xt_connmark.c
index ec377cc6a369..809639ce6f5a 100644
--- a/net/netfilter/xt_connmark.c
+++ b/net/netfilter/xt_connmark.c
@@ -79,8 +79,8 @@ static int connmark_tg_check(const struct xt_tgchk_param *par)
 
         ret = nf_ct_netns_get(par->net, par->family);
         if (ret < 0)
-                pr_info("cannot load conntrack support for proto=%u\n",
-                        par->family);
+                pr_info_ratelimited("cannot load conntrack support for proto=%u\n",
+                                    par->family);
         return ret;
 }
 
@@ -109,8 +109,8 @@ static int connmark_mt_check(const struct xt_mtchk_param *par)
 
         ret = nf_ct_netns_get(par->net, par->family);
         if (ret < 0)
-                pr_info("cannot load conntrack support for proto=%u\n",
-                        par->family);
+                pr_info_ratelimited("cannot load conntrack support for proto=%u\n",
+                                    par->family);
         return ret;
 }
 
diff --git a/net/netfilter/xt_conntrack.c b/net/netfilter/xt_conntrack.c
index 39cf1d019240..df80fe7d391c 100644
--- a/net/netfilter/xt_conntrack.c
+++ b/net/netfilter/xt_conntrack.c
@@ -272,8 +272,8 @@ static int conntrack_mt_check(const struct xt_mtchk_param *par)
 
         ret = nf_ct_netns_get(par->net, par->family);
         if (ret < 0)
-                pr_info("cannot load conntrack support for proto=%u\n",
-                        par->family);
+                pr_info_ratelimited("cannot load conntrack support for proto=%u\n",
+                                    par->family);
         return ret;
 }
 
diff --git a/net/netfilter/xt_dscp.c b/net/netfilter/xt_dscp.c
index 236ac8008909..a4c2b862f820 100644
--- a/net/netfilter/xt_dscp.c
+++ b/net/netfilter/xt_dscp.c
@@ -46,10 +46,8 @@ static int dscp_mt_check(const struct xt_mtchk_param *par)
 {
         const struct xt_dscp_info *info = par->matchinfo;
 
-        if (info->dscp > XT_DSCP_MAX) {
-                pr_info("dscp %x out of range\n", info->dscp);
+        if (info->dscp > XT_DSCP_MAX)
                 return -EDOM;
-        }
 
         return 0;
 }
diff --git a/net/netfilter/xt_ecn.c b/net/netfilter/xt_ecn.c
index 3c831a8efebc..c7ad4afa5fb8 100644
--- a/net/netfilter/xt_ecn.c
+++ b/net/netfilter/xt_ecn.c
@@ -97,7 +97,7 @@ static int ecn_mt_check4(const struct xt_mtchk_param *par)
 
         if (info->operation & (XT_ECN_OP_MATCH_ECE | XT_ECN_OP_MATCH_CWR) &&
             (ip->proto != IPPROTO_TCP || ip->invflags & IPT_INV_PROTO)) {
-                pr_info("cannot match TCP bits in rule for non-tcp packets\n");
+                pr_info_ratelimited("cannot match TCP bits for non-tcp packets\n");
                 return -EINVAL;
         }
 
@@ -139,7 +139,7 @@ static int ecn_mt_check6(const struct xt_mtchk_param *par)
 
         if (info->operation & (XT_ECN_OP_MATCH_ECE | XT_ECN_OP_MATCH_CWR) &&
             (ip->proto != IPPROTO_TCP || ip->invflags & IP6T_INV_PROTO)) {
-                pr_info("cannot match TCP bits in rule for non-tcp packets\n");
+                pr_info_ratelimited("cannot match TCP bits for non-tcp packets\n");
                 return -EINVAL;
         }
 
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index ca6847403ca2..3360f13dc208 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -523,7 +523,8 @@ static u64 user2rate(u64 user)
         if (user != 0) {
                 return div64_u64(XT_HASHLIMIT_SCALE_v2, user);
         } else {
-                pr_warn("invalid rate from userspace: %llu\n", user);
+                pr_info_ratelimited("invalid rate from userspace: %llu\n",
+                                    user);
                 return 0;
         }
 }
@@ -774,7 +775,7 @@ hashlimit_mt_common(const struct sk_buff *skb, struct xt_action_param *par,
                 if (!dh->rateinfo.prev_window &&
                     (dh->rateinfo.current_rate <= dh->rateinfo.burst)) {
                         spin_unlock(&dh->lock);
-                        rcu_read_unlock_bh();
+                        local_bh_enable();
                         return !(cfg->mode & XT_HASHLIMIT_INVERT);
                 } else {
                         goto overlimit;
@@ -865,33 +866,34 @@ static int hashlimit_mt_check_common(const struct xt_mtchk_param *par,
         }
 
         if (cfg->mode & ~XT_HASHLIMIT_ALL) {
-                pr_info("Unknown mode mask %X, kernel too old?\n",
-                                                cfg->mode);
+                pr_info_ratelimited("Unknown mode mask %X, kernel too old?\n",
+                                    cfg->mode);
                 return -EINVAL;
         }
 
         /* Check for overflow. */
         if (revision >= 3 && cfg->mode & XT_HASHLIMIT_RATE_MATCH) {
                 if (cfg->avg == 0 || cfg->avg > U32_MAX) {
-                        pr_info("hashlimit invalid rate\n");
+                        pr_info_ratelimited("invalid rate\n");
                         return -ERANGE;
                 }
 
                 if (cfg->interval == 0) {
-                        pr_info("hashlimit invalid interval\n");
+                        pr_info_ratelimited("invalid interval\n");
                         return -EINVAL;
                 }
         } else if (cfg->mode & XT_HASHLIMIT_BYTES) {
                 if (user2credits_byte(cfg->avg) == 0) {
-                        pr_info("overflow, rate too high: %llu\n", cfg->avg);
+                        pr_info_ratelimited("overflow, rate too high: %llu\n",
+                                            cfg->avg);
                         return -EINVAL;
                 }
         } else if (cfg->burst == 0 ||
-                    user2credits(cfg->avg * cfg->burst, revision) <
-                    user2credits(cfg->avg, revision)) {
-                        pr_info("overflow, try lower: %llu/%llu\n",
-                                cfg->avg, cfg->burst);
-                        return -ERANGE;
+                   user2credits(cfg->avg * cfg->burst, revision) <
+                   user2credits(cfg->avg, revision)) {
+                pr_info_ratelimited("overflow, try lower: %llu/%llu\n",
+                                    cfg->avg, cfg->burst);
+                return -ERANGE;
         }
 
         mutex_lock(&hashlimit_mutex);
@@ -915,8 +917,9 @@ static int hashlimit_mt_check_v1(const struct xt_mtchk_param *par)
         struct hashlimit_cfg3 cfg = {};
         int ret;
 
-        if (info->name[sizeof(info->name) - 1] != '\0')
-                return -EINVAL;
+        ret = xt_check_proc_name(info->name, sizeof(info->name));
+        if (ret)
+                return ret;
 
         ret = cfg_copy(&cfg, (void *)&info->cfg, 1);
 
@@ -933,8 +936,9 @@ static int hashlimit_mt_check_v2(const struct xt_mtchk_param *par)
         struct hashlimit_cfg3 cfg = {};
         int ret;
 
-        if (info->name[sizeof(info->name) - 1] != '\0')
-                return -EINVAL;
+        ret = xt_check_proc_name(info->name, sizeof(info->name));
+        if (ret)
+                return ret;
 
         ret = cfg_copy(&cfg, (void *)&info->cfg, 2);
 
@@ -948,9 +952,11 @@ static int hashlimit_mt_check_v2(const struct xt_mtchk_param *par)
 static int hashlimit_mt_check(const struct xt_mtchk_param *par)
 {
         struct xt_hashlimit_mtinfo3 *info = par->matchinfo;
+        int ret;
 
-        if (info->name[sizeof(info->name) - 1] != '\0')
-                return -EINVAL;
+        ret = xt_check_proc_name(info->name, sizeof(info->name));
+        if (ret)
+                return ret;
 
         return hashlimit_mt_check_common(par, &info->hinfo, &info->cfg,
                                          info->name, 3);
diff --git a/net/netfilter/xt_helper.c b/net/netfilter/xt_helper.c
index 38a78151c0e9..fd077aeaaed9 100644
--- a/net/netfilter/xt_helper.c
+++ b/net/netfilter/xt_helper.c
@@ -61,8 +61,8 @@ static int helper_mt_check(const struct xt_mtchk_param *par)
 
         ret = nf_ct_netns_get(par->net, par->family);
         if (ret < 0) {
-                pr_info("cannot load conntrack support for proto=%u\n",
-                        par->family);
+                pr_info_ratelimited("cannot load conntrack support for proto=%u\n",
+                                    par->family);
                 return ret;
         }
         info->name[sizeof(info->name) - 1] = '\0';
diff --git a/net/netfilter/xt_ipcomp.c b/net/netfilter/xt_ipcomp.c
index 7ca64a50db04..57f1df575701 100644
--- a/net/netfilter/xt_ipcomp.c
+++ b/net/netfilter/xt_ipcomp.c
@@ -72,7 +72,7 @@ static int comp_mt_check(const struct xt_mtchk_param *par)
 
         /* Must specify no unknown invflags */
         if (compinfo->invflags & ~XT_IPCOMP_INV_MASK) {
-                pr_err("unknown flags %X\n", compinfo->invflags);
+                pr_info_ratelimited("unknown flags %X\n", compinfo->invflags);
                 return -EINVAL;
         }
         return 0;
diff --git a/net/netfilter/xt_ipvs.c b/net/netfilter/xt_ipvs.c
index 42540d26c2b8..1d950a6100af 100644
--- a/net/netfilter/xt_ipvs.c
+++ b/net/netfilter/xt_ipvs.c
@@ -158,7 +158,8 @@ static int ipvs_mt_check(const struct xt_mtchk_param *par)
             && par->family != NFPROTO_IPV6
 #endif
                 ) {
-                pr_info("protocol family %u not supported\n", par->family);
+                pr_info_ratelimited("protocol family %u not supported\n",
+                                    par->family);
                 return -EINVAL;
         }
 
diff --git a/net/netfilter/xt_l2tp.c b/net/netfilter/xt_l2tp.c
index 8aee572771f2..c43482bf48e6 100644
--- a/net/netfilter/xt_l2tp.c
+++ b/net/netfilter/xt_l2tp.c
@@ -216,7 +216,7 @@ static int l2tp_mt_check(const struct xt_mtchk_param *par)
         /* Check for invalid flags */
         if (info->flags & ~(XT_L2TP_TID | XT_L2TP_SID | XT_L2TP_VERSION |
                             XT_L2TP_TYPE)) {
-                pr_info("unknown flags: %x\n", info->flags);
+                pr_info_ratelimited("unknown flags: %x\n", info->flags);
                 return -EINVAL;
         }
 
@@ -225,7 +225,8 @@ static int l2tp_mt_check(const struct xt_mtchk_param *par)
             (!(info->flags & XT_L2TP_SID)) &&
             ((!(info->flags & XT_L2TP_TYPE)) ||
              (info->type != XT_L2TP_TYPE_CONTROL))) {
-                pr_info("invalid flags combination: %x\n", info->flags);
+                pr_info_ratelimited("invalid flags combination: %x\n",
+                                    info->flags);
                 return -EINVAL;
         }
 
@@ -234,19 +235,22 @@ static int l2tp_mt_check(const struct xt_mtchk_param *par)
          */
         if (info->flags & XT_L2TP_VERSION) {
                 if ((info->version < 2) || (info->version > 3)) {
-                        pr_info("wrong L2TP version: %u\n", info->version);
+                        pr_info_ratelimited("wrong L2TP version: %u\n",
+                                            info->version);
                         return -EINVAL;
                 }
 
                 if (info->version == 2) {
                         if ((info->flags & XT_L2TP_TID) &&
                             (info->tid > 0xffff)) {
-                                pr_info("v2 tid > 0xffff: %u\n", info->tid);
+                                pr_info_ratelimited("v2 tid > 0xffff: %u\n",
+                                                    info->tid);
                                 return -EINVAL;
                         }
                         if ((info->flags & XT_L2TP_SID) &&
                             (info->sid > 0xffff)) {
-                                pr_info("v2 sid > 0xffff: %u\n", info->sid);
+                                pr_info_ratelimited("v2 sid > 0xffff: %u\n",
+                                                    info->sid);
                                 return -EINVAL;
                         }
                 }
@@ -268,13 +272,13 @@ static int l2tp_mt_check4(const struct xt_mtchk_param *par)
 
         if ((ip->proto != IPPROTO_UDP) &&
             (ip->proto != IPPROTO_L2TP)) {
-                pr_info("missing protocol rule (udp|l2tpip)\n");
+                pr_info_ratelimited("missing protocol rule (udp|l2tpip)\n");
                 return -EINVAL;
         }
 
         if ((ip->proto == IPPROTO_L2TP) &&
             (info->version == 2)) {
-                pr_info("v2 doesn't support IP mode\n");
+                pr_info_ratelimited("v2 doesn't support IP mode\n");
                 return -EINVAL;
         }
 
@@ -295,13 +299,13 @@ static int l2tp_mt_check6(const struct xt_mtchk_param *par)
 
         if ((ip->proto != IPPROTO_UDP) &&
             (ip->proto != IPPROTO_L2TP)) {
-                pr_info("missing protocol rule (udp|l2tpip)\n");
+                pr_info_ratelimited("missing protocol rule (udp|l2tpip)\n");
                 return -EINVAL;
         }
 
         if ((ip->proto == IPPROTO_L2TP) &&
             (info->version == 2)) {
-                pr_info("v2 doesn't support IP mode\n");
+                pr_info_ratelimited("v2 doesn't support IP mode\n");
                 return -EINVAL;
         }
 
diff --git a/net/netfilter/xt_limit.c b/net/netfilter/xt_limit.c
index 61403b77361c..55d18cd67635 100644
--- a/net/netfilter/xt_limit.c
+++ b/net/netfilter/xt_limit.c
@@ -106,8 +106,8 @@ static int limit_mt_check(const struct xt_mtchk_param *par)
         /* Check for overflow. */
         if (r->burst == 0
             || user2credits(r->avg * r->burst) < user2credits(r->avg)) {
-                pr_info("Overflow, try lower: %u/%u\n",
-                        r->avg, r->burst);
+                pr_info_ratelimited("Overflow, try lower: %u/%u\n",
+                                    r->avg, r->burst);
                 return -ERANGE;
         }
 
diff --git a/net/netfilter/xt_nat.c b/net/netfilter/xt_nat.c
index 0fd14d1eb09d..bdb689cdc829 100644
--- a/net/netfilter/xt_nat.c
+++ b/net/netfilter/xt_nat.c
@@ -8,6 +8,8 @@
  * published by the Free Software Foundation.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <linux/netfilter.h>
@@ -19,8 +21,7 @@ static int xt_nat_checkentry_v0(const struct xt_tgchk_param *par)
         const struct nf_nat_ipv4_multi_range_compat *mr = par->targinfo;
 
         if (mr->rangesize != 1) {
-                pr_info("%s: multiple ranges no longer supported\n",
-                        par->target->name);
+                pr_info_ratelimited("multiple ranges no longer supported\n");
                 return -EINVAL;
         }
         return nf_ct_netns_get(par->net, par->family);
diff --git a/net/netfilter/xt_nfacct.c b/net/netfilter/xt_nfacct.c
index 6f92d25590a8..c8674deed4eb 100644
--- a/net/netfilter/xt_nfacct.c
+++ b/net/netfilter/xt_nfacct.c
@@ -6,6 +6,8 @@
  * it under the terms of the GNU General Public License version 2 (or any
  * later at your option) as published by the Free Software Foundation.
  */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/skbuff.h>
 
@@ -39,8 +41,8 @@ nfacct_mt_checkentry(const struct xt_mtchk_param *par)
 
         nfacct = nfnl_acct_find_get(par->net, info->name);
         if (nfacct == NULL) {
-                pr_info("xt_nfacct: accounting object with name `%s' "
-                        "does not exists\n", info->name);
+                pr_info_ratelimited("accounting object `%s' does not exists\n",
+                                    info->name);
                 return -ENOENT;
         }
         info->nfacct = nfacct;
diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c
index bb33598e4530..9d6d67b953ac 100644
--- a/net/netfilter/xt_physdev.c
+++ b/net/netfilter/xt_physdev.c
@@ -107,9 +107,7 @@ static int physdev_mt_check(const struct xt_mtchk_param *par)
              info->invert & XT_PHYSDEV_OP_BRIDGED) &&
             par->hook_mask & ((1 << NF_INET_LOCAL_OUT) |
             (1 << NF_INET_FORWARD) | (1 << NF_INET_POST_ROUTING))) {
-                pr_info("using --physdev-out and --physdev-is-out are only "
-                        "supported in the FORWARD and POSTROUTING chains with "
-                        "bridged traffic.\n");
+                pr_info_ratelimited("--physdev-out and --physdev-is-out only supported in the FORWARD and POSTROUTING chains with bridged traffic\n");
                 if (par->hook_mask & (1 << NF_INET_LOCAL_OUT))
                         return -EINVAL;
         }
diff --git a/net/netfilter/xt_policy.c b/net/netfilter/xt_policy.c
index 5639fb03bdd9..13f8ccf946d6 100644
--- a/net/netfilter/xt_policy.c
+++ b/net/netfilter/xt_policy.c
@@ -132,26 +132,29 @@ policy_mt(const struct sk_buff *skb, struct xt_action_param *par)
 static int policy_mt_check(const struct xt_mtchk_param *par)
 {
         const struct xt_policy_info *info = par->matchinfo;
+        const char *errmsg = "neither incoming nor outgoing policy selected";
+
+        if (!(info->flags & (XT_POLICY_MATCH_IN|XT_POLICY_MATCH_OUT)))
+                goto err;
 
-        if (!(info->flags & (XT_POLICY_MATCH_IN|XT_POLICY_MATCH_OUT))) {
-                pr_info("neither incoming nor outgoing policy selected\n");
-                return -EINVAL;
-        }
         if (par->hook_mask & ((1 << NF_INET_PRE_ROUTING) |
             (1 << NF_INET_LOCAL_IN)) && info->flags & XT_POLICY_MATCH_OUT) {
-                pr_info("output policy not valid in PREROUTING and INPUT\n");
-                return -EINVAL;
+                errmsg = "output policy not valid in PREROUTING and INPUT";
+                goto err;
         }
         if (par->hook_mask & ((1 << NF_INET_POST_ROUTING) |
             (1 << NF_INET_LOCAL_OUT)) && info->flags & XT_POLICY_MATCH_IN) {
-                pr_info("input policy not valid in POSTROUTING and OUTPUT\n");
-                return -EINVAL;
+                errmsg = "input policy not valid in POSTROUTING and OUTPUT";
+                goto err;
         }
         if (info->len > XT_POLICY_MAX_ELEM) {
-                pr_info("too many policy elements\n");
-                return -EINVAL;
+                errmsg = "too many policy elements";
+                goto err;
         }
         return 0;
+err:
+        pr_info_ratelimited("%s\n", errmsg);
+        return -EINVAL;
 }
 
 static struct xt_match policy_mt_reg[] __read_mostly = {
diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
index 245fa350a7a8..81ee1d6543b2 100644
--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -342,8 +342,8 @@ static int recent_mt_check(const struct xt_mtchk_param *par,
         net_get_random_once(&hash_rnd, sizeof(hash_rnd));
 
         if (info->check_set & ~XT_RECENT_VALID_FLAGS) {
-                pr_info("Unsupported user space flags (%08x)\n",
-                        info->check_set);
+                pr_info_ratelimited("Unsupported userspace flags (%08x)\n",
+                                    info->check_set);
                 return -EINVAL;
         }
         if (hweight8(info->check_set &
@@ -357,13 +357,13 @@ static int recent_mt_check(const struct xt_mtchk_param *par,
         if ((info->check_set & XT_RECENT_REAP) && !info->seconds)
                 return -EINVAL;
         if (info->hit_count >= XT_RECENT_MAX_NSTAMPS) {
-                pr_info("hitcount (%u) is larger than allowed maximum (%u)\n",
-                        info->hit_count, XT_RECENT_MAX_NSTAMPS - 1);
+                pr_info_ratelimited("hitcount (%u) is larger than allowed maximum (%u)\n",
+                                    info->hit_count, XT_RECENT_MAX_NSTAMPS - 1);
                 return -EINVAL;
         }
-        if (info->name[0] == '\0' ||
-            strnlen(info->name, XT_RECENT_NAME_LEN) == XT_RECENT_NAME_LEN)
-                return -EINVAL;
+        ret = xt_check_proc_name(info->name, sizeof(info->name));
+        if (ret)
+                return ret;
 
         if (ip_pkt_list_tot && info->hit_count < ip_pkt_list_tot)
                 nstamp_mask = roundup_pow_of_two(ip_pkt_list_tot) - 1;
@@ -587,7 +587,7 @@ recent_mt_proc_write(struct file *file, const char __user *input,
                 add = true;
                 break;
         default:
-                pr_info("Need \"+ip\", \"-ip\" or \"/\"\n");
+                pr_info_ratelimited("Need \"+ip\", \"-ip\" or \"/\"\n");
                 return -EINVAL;
         }
 
@@ -601,10 +601,8 @@ recent_mt_proc_write(struct file *file, const char __user *input,
                 succ   = in4_pton(c, size, (void *)&addr, '\n', NULL);
         }
 
-        if (!succ) {
-                pr_info("illegal address written to procfs\n");
+        if (!succ)
                 return -EINVAL;
-        }
 
         spin_lock_bh(&recent_lock);
         e = recent_entry_lookup(t, &addr, family, 0);
diff --git a/net/netfilter/xt_set.c b/net/netfilter/xt_set.c
index 16b6b11ee83f..6f4c5217d835 100644
--- a/net/netfilter/xt_set.c
+++ b/net/netfilter/xt_set.c
@@ -92,12 +92,12 @@ set_match_v0_checkentry(const struct xt_mtchk_param *par)
         index = ip_set_nfnl_get_byindex(par->net, info->match_set.index);
 
         if (index == IPSET_INVALID_ID) {
-                pr_warn("Cannot find set identified by id %u to match\n",
-                        info->match_set.index);
+                pr_info_ratelimited("Cannot find set identified by id %u to match\n",
+                                    info->match_set.index);
                 return -ENOENT;
         }
         if (info->match_set.u.flags[IPSET_DIM_MAX - 1] != 0) {
-                pr_warn("Protocol error: set match dimension is over the limit!\n");
+                pr_info_ratelimited("set match dimension is over the limit!\n");
                 ip_set_nfnl_put(par->net, info->match_set.index);
                 return -ERANGE;
         }
@@ -143,12 +143,12 @@ set_match_v1_checkentry(const struct xt_mtchk_param *par)
         index = ip_set_nfnl_get_byindex(par->net, info->match_set.index);
 
         if (index == IPSET_INVALID_ID) {
-                pr_warn("Cannot find set identified by id %u to match\n",
-                        info->match_set.index);
+                pr_info_ratelimited("Cannot find set identified by id %u to match\n",
+                                    info->match_set.index);
                 return -ENOENT;
         }
         if (info->match_set.dim > IPSET_DIM_MAX) {
-                pr_warn("Protocol error: set match dimension is over the limit!\n");
+                pr_info_ratelimited("set match dimension is over the limit!\n");
                 ip_set_nfnl_put(par->net, info->match_set.index);
                 return -ERANGE;
         }
@@ -241,8 +241,8 @@ set_target_v0_checkentry(const struct xt_tgchk_param *par)
         if (info->add_set.index != IPSET_INVALID_ID) {
                 index = ip_set_nfnl_get_byindex(par->net, info->add_set.index);
                 if (index == IPSET_INVALID_ID) {
-                        pr_warn("Cannot find add_set index %u as target\n",
-                                info->add_set.index);
+                        pr_info_ratelimited("Cannot find add_set index %u as target\n",
+                                            info->add_set.index);
                         return -ENOENT;
                 }
         }
@@ -250,8 +250,8 @@ set_target_v0_checkentry(const struct xt_tgchk_param *par)
         if (info->del_set.index != IPSET_INVALID_ID) {
                 index = ip_set_nfnl_get_byindex(par->net, info->del_set.index);
                 if (index == IPSET_INVALID_ID) {
-                        pr_warn("Cannot find del_set index %u as target\n",
-                                info->del_set.index);
+                        pr_info_ratelimited("Cannot find del_set index %u as target\n",
+                                            info->del_set.index);
                         if (info->add_set.index != IPSET_INVALID_ID)
                                 ip_set_nfnl_put(par->net, info->add_set.index);
                         return -ENOENT;
@@ -259,7 +259,7 @@ set_target_v0_checkentry(const struct xt_tgchk_param *par)
         }
         if (info->add_set.u.flags[IPSET_DIM_MAX - 1] != 0 ||
             info->del_set.u.flags[IPSET_DIM_MAX - 1] != 0) {
-                pr_warn("Protocol error: SET target dimension is over the limit!\n");
+                pr_info_ratelimited("SET target dimension over the limit!\n");
                 if (info->add_set.index != IPSET_INVALID_ID)
                         ip_set_nfnl_put(par->net, info->add_set.index);
                 if (info->del_set.index != IPSET_INVALID_ID)
@@ -316,8 +316,8 @@ set_target_v1_checkentry(const struct xt_tgchk_param *par)
         if (info->add_set.index != IPSET_INVALID_ID) {
                 index = ip_set_nfnl_get_byindex(par->net, info->add_set.index);
                 if (index == IPSET_INVALID_ID) {
-                        pr_warn("Cannot find add_set index %u as target\n",
-                                info->add_set.index);
+                        pr_info_ratelimited("Cannot find add_set index %u as target\n",
+                                            info->add_set.index);
                         return -ENOENT;
                 }
         }
@@ -325,8 +325,8 @@ set_target_v1_checkentry(const struct xt_tgchk_param *par)
         if (info->del_set.index != IPSET_INVALID_ID) {
                 index = ip_set_nfnl_get_byindex(par->net, info->del_set.index);
                 if (index == IPSET_INVALID_ID) {
-                        pr_warn("Cannot find del_set index %u as target\n",
-                                info->del_set.index);
+                        pr_info_ratelimited("Cannot find del_set index %u as target\n",
+                                            info->del_set.index);
                         if (info->add_set.index != IPSET_INVALID_ID)
                                 ip_set_nfnl_put(par->net, info->add_set.index);
                         return -ENOENT;
@@ -334,7 +334,7 @@ set_target_v1_checkentry(const struct xt_tgchk_param *par)
         }
         if (info->add_set.dim > IPSET_DIM_MAX ||
             info->del_set.dim > IPSET_DIM_MAX) {
-                pr_warn("Protocol error: SET target dimension is over the limit!\n");
+                pr_info_ratelimited("SET target dimension over the limit!\n");
                 if (info->add_set.index != IPSET_INVALID_ID)
                         ip_set_nfnl_put(par->net, info->add_set.index);
                 if (info->del_set.index != IPSET_INVALID_ID)
@@ -444,8 +444,8 @@ set_target_v3_checkentry(const struct xt_tgchk_param *par)
                 index = ip_set_nfnl_get_byindex(par->net,
                                                 info->add_set.index);
                 if (index == IPSET_INVALID_ID) {
-                        pr_warn("Cannot find add_set index %u as target\n",
-                                info->add_set.index);
+                        pr_info_ratelimited("Cannot find add_set index %u as target\n",
+                                            info->add_set.index);
                         return -ENOENT;
                 }
         }
@@ -454,8 +454,8 @@ set_target_v3_checkentry(const struct xt_tgchk_param *par)
                 index = ip_set_nfnl_get_byindex(par->net,
                                                 info->del_set.index);
                 if (index == IPSET_INVALID_ID) {
-                        pr_warn("Cannot find del_set index %u as target\n",
-                                info->del_set.index);
+                        pr_info_ratelimited("Cannot find del_set index %u as target\n",
+                                            info->del_set.index);
                         if (info->add_set.index != IPSET_INVALID_ID)
                                 ip_set_nfnl_put(par->net,
                                                 info->add_set.index);
@@ -465,7 +465,7 @@ set_target_v3_checkentry(const struct xt_tgchk_param *par)
 
         if (info->map_set.index != IPSET_INVALID_ID) {
                 if (strncmp(par->table, "mangle", 7)) {
-                        pr_warn("--map-set only usable from mangle table\n");
+                        pr_info_ratelimited("--map-set only usable from mangle table\n");
                         return -EINVAL;
                 }
                 if (((info->flags & IPSET_FLAG_MAP_SKBPRIO) |
@@ -473,14 +473,14 @@ set_target_v3_checkentry(const struct xt_tgchk_param *par)
                      !(par->hook_mask & (1 << NF_INET_FORWARD |
                                          1 << NF_INET_LOCAL_OUT |
                                          1 << NF_INET_POST_ROUTING))) {
-                        pr_warn("mapping of prio or/and queue is allowed only from OUTPUT/FORWARD/POSTROUTING chains\n");
+                        pr_info_ratelimited("mapping of prio or/and queue is allowed only from OUTPUT/FORWARD/POSTROUTING chains\n");
                         return -EINVAL;
                 }
                 index = ip_set_nfnl_get_byindex(par->net,
                                                 info->map_set.index);
                 if (index == IPSET_INVALID_ID) {
-                        pr_warn("Cannot find map_set index %u as target\n",
-                                info->map_set.index);
+                        pr_info_ratelimited("Cannot find map_set index %u as target\n",
+                                            info->map_set.index);
                         if (info->add_set.index != IPSET_INVALID_ID)
                                 ip_set_nfnl_put(par->net,
                                                 info->add_set.index);
@@ -494,7 +494,7 @@ set_target_v3_checkentry(const struct xt_tgchk_param *par)
         if (info->add_set.dim > IPSET_DIM_MAX ||
             info->del_set.dim > IPSET_DIM_MAX ||
             info->map_set.dim > IPSET_DIM_MAX) {
-                pr_warn("Protocol error: SET target dimension is over the limit!\n");
+                pr_info_ratelimited("SET target dimension over the limit!\n");
                 if (info->add_set.index != IPSET_INVALID_ID)
                         ip_set_nfnl_put(par->net, info->add_set.index);
                 if (info->del_set.index != IPSET_INVALID_ID)
diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c
index 575d2153e3b8..2ac7f674d19b 100644
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -171,7 +171,8 @@ static int socket_mt_v1_check(const struct xt_mtchk_param *par)
                 return err;
 
         if (info->flags & ~XT_SOCKET_FLAGS_V1) {
-                pr_info("unknown flags 0x%x\n", info->flags & ~XT_SOCKET_FLAGS_V1);
+                pr_info_ratelimited("unknown flags 0x%x\n",
+                                    info->flags & ~XT_SOCKET_FLAGS_V1);
                 return -EINVAL;
         }
         return 0;
@@ -187,7 +188,8 @@ static int socket_mt_v2_check(const struct xt_mtchk_param *par)
                 return err;
 
         if (info->flags & ~XT_SOCKET_FLAGS_V2) {
-                pr_info("unknown flags 0x%x\n", info->flags & ~XT_SOCKET_FLAGS_V2);
+                pr_info_ratelimited("unknown flags 0x%x\n",
+                                    info->flags & ~XT_SOCKET_FLAGS_V2);
                 return -EINVAL;
         }
         return 0;
@@ -203,8 +205,8 @@ static int socket_mt_v3_check(const struct xt_mtchk_param *par)
         if (err)
                 return err;
         if (info->flags & ~XT_SOCKET_FLAGS_V3) {
-                pr_info("unknown flags 0x%x\n",
-                        info->flags & ~XT_SOCKET_FLAGS_V3);
+                pr_info_ratelimited("unknown flags 0x%x\n",
+                                    info->flags & ~XT_SOCKET_FLAGS_V3);
                 return -EINVAL;
         }
         return 0;
diff --git a/net/netfilter/xt_state.c b/net/netfilter/xt_state.c
index 5fbd79194d21..0b41c0befe3c 100644
--- a/net/netfilter/xt_state.c
+++ b/net/netfilter/xt_state.c
@@ -44,8 +44,8 @@ static int state_mt_check(const struct xt_mtchk_param *par)
 
         ret = nf_ct_netns_get(par->net, par->family);
         if (ret < 0)
-                pr_info("cannot load conntrack support for proto=%u\n",
-                        par->family);
+                pr_info_ratelimited("cannot load conntrack support for proto=%u\n",
+                                    par->family);
         return ret;
 }
 
diff --git a/net/netfilter/xt_time.c b/net/netfilter/xt_time.c
index 1b01eec1fbda..0160f505e337 100644
--- a/net/netfilter/xt_time.c
+++ b/net/netfilter/xt_time.c
@@ -235,13 +235,13 @@ static int time_mt_check(const struct xt_mtchk_param *par)
 
         if (info->daytime_start > XT_TIME_MAX_DAYTIME ||
             info->daytime_stop > XT_TIME_MAX_DAYTIME) {
-                pr_info("invalid argument - start or "
-                        "stop time greater than 23:59:59\n");
+                pr_info_ratelimited("invalid argument - start or stop time greater than 23:59:59\n");
                 return -EDOM;
         }
 
         if (info->flags & ~XT_TIME_ALL_FLAGS) {
-                pr_info("unknown flags 0x%x\n", info->flags & ~XT_TIME_ALL_FLAGS);
+                pr_info_ratelimited("unknown flags 0x%x\n",
+                                    info->flags & ~XT_TIME_ALL_FLAGS);
                 return -EINVAL;
         }
 
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 2ad445c1d27c..07e8478068f0 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2308,7 +2308,7 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
         if (cb->start) {
                 ret = cb->start(cb);
                 if (ret)
-                        goto error_unlock;
+                        goto error_put;
         }
 
         nlk->cb_running = true;
@@ -2328,6 +2328,8 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
          */
         return -EINTR;
 
+error_put:
+        module_put(control->module);
 error_unlock:
         sock_put(sk);
         mutex_unlock(nlk->cb_mutex);
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 6f02499ef007..b9ce82c9440f 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -1106,7 +1106,7 @@ static int genlmsg_mcast(struct sk_buff *skb, u32 portid, unsigned long group,
         if (!err)
                 delivered = true;
         else if (err != -ESRCH)
-                goto error;
+                return err;
         return delivered ? 0 : -ESRCH;
  error:
         kfree_skb(skb);
diff --git a/net/nfc/llcp_commands.c b/net/nfc/llcp_commands.c
index 367d8c027101..2ceefa183cee 100644
--- a/net/nfc/llcp_commands.c
+++ b/net/nfc/llcp_commands.c
@@ -149,6 +149,10 @@ struct nfc_llcp_sdp_tlv *nfc_llcp_build_sdreq_tlv(u8 tid, char *uri,
 
         pr_debug("uri: %s, len: %zu\n", uri, uri_len);
 
+        /* sdreq->tlv_len is u8, takes uri_len, + 3 for header, + 1 for NULL */
+        if (WARN_ON_ONCE(uri_len > U8_MAX - 4))
+                return NULL;
+
         sdreq = kzalloc(sizeof(struct nfc_llcp_sdp_tlv), GFP_KERNEL);
         if (sdreq == NULL)
                 return NULL;
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index c0b83dc9d993..f018eafc2a0d 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -61,7 +61,8 @@ static const struct nla_policy nfc_genl_policy[NFC_ATTR_MAX + 1] = {
 };
 
 static const struct nla_policy nfc_sdp_genl_policy[NFC_SDP_ATTR_MAX + 1] = {
-        [NFC_SDP_ATTR_URI] = { .type = NLA_STRING },
+        [NFC_SDP_ATTR_URI] = { .type = NLA_STRING,
+                               .len = U8_MAX - 4 },
         [NFC_SDP_ATTR_SAP] = { .type = NLA_U8 },
 };
 
diff --git a/net/openvswitch/meter.c b/net/openvswitch/meter.c
index 04b94281a30b..b891a91577f8 100644
--- a/net/openvswitch/meter.c
+++ b/net/openvswitch/meter.c
@@ -242,14 +242,20 @@ static struct dp_meter *dp_meter_create(struct nlattr **a)
 
                 band->type = nla_get_u32(attr[OVS_BAND_ATTR_TYPE]);
                 band->rate = nla_get_u32(attr[OVS_BAND_ATTR_RATE]);
+                if (band->rate == 0) {
+                        err = -EINVAL;
+                        goto exit_free_meter;
+                }
+
                 band->burst_size = nla_get_u32(attr[OVS_BAND_ATTR_BURST]);
                 /* Figure out max delta_t that is enough to fill any bucket.
                  * Keep max_delta_t size to the bucket units:
                  * pkts => 1/1000 packets, kilobits => bits.
+                 *
+                 * Start with a full bucket.
                  */
-                band_max_delta_t = (band->burst_size + band->rate) * 1000;
-                /* Start with a full bucket. */
-                band->bucket = band_max_delta_t;
+                band->bucket = (band->burst_size + band->rate) * 1000;
+                band_max_delta_t = band->bucket / band->rate;
                 if (band_max_delta_t > meter->max_delta_t)
                         meter->max_delta_t = band_max_delta_t;
                 band++;
diff --git a/net/qrtr/smd.c b/net/qrtr/smd.c
index 50615d5efac1..9cf089b9754e 100644
--- a/net/qrtr/smd.c
+++ b/net/qrtr/smd.c
@@ -114,5 +114,6 @@ static struct rpmsg_driver qcom_smd_qrtr_driver = {
 
 module_rpmsg_driver(qcom_smd_qrtr_driver);
 
+MODULE_ALIAS("rpmsg:IPCRTR");
 MODULE_DESCRIPTION("Qualcomm IPC-Router SMD interface driver");
 MODULE_LICENSE("GPL v2");
diff --git a/net/rds/connection.c b/net/rds/connection.c
index 94e190febfdd..2da3176bf792 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -224,7 +224,7 @@ static struct rds_connection *__rds_conn_create(struct net *net,
         if (rds_destroy_pending(conn))
                 ret = -ENETDOWN;
         else
-                ret = trans->conn_alloc(conn, gfp);
+                ret = trans->conn_alloc(conn, GFP_ATOMIC);
         if (ret) {
                 rcu_read_unlock();
                 kfree(conn->c_path);
diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c
index c061d6eb465d..22571189f21e 100644
--- a/net/rds/tcp_listen.c
+++ b/net/rds/tcp_listen.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006 Oracle.  All rights reserved.
+ * Copyright (c) 2006, 2018 Oracle.  All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -142,12 +142,20 @@ int rds_tcp_accept_one(struct socket *sock)
         if (ret)
                 goto out;
 
-        new_sock->type = sock->type;
-        new_sock->ops = sock->ops;
         ret = sock->ops->accept(sock, new_sock, O_NONBLOCK, true);
         if (ret < 0)
                 goto out;
 
+        /* sock_create_lite() does not get a hold on the owner module so we
+         * need to do it here.  Note that sock_release() uses sock->ops to
+         * determine if it needs to decrement the reference count.  So set
+         * sock->ops after calling accept() in case that fails.  And there's
+         * no need to do try_module_get() as the listener should have a hold
+         * already.
+         */
+        new_sock->ops = sock->ops;
+        __module_get(new_sock->ops->owner);
+
         ret = rds_tcp_keepalive(new_sock);
         if (ret < 0)
                 goto out;
diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c
index 42410e910aff..cf73dc006c3b 100644
--- a/net/rxrpc/output.c
+++ b/net/rxrpc/output.c
@@ -445,7 +445,7 @@ send_fragmentable:
                                         (char *)&opt, sizeof(opt));
                 if (ret == 0) {
                         ret = kernel_sendmsg(conn->params.local->socket, &msg,
-                                             iov, 1, iov[0].iov_len);
+                                             iov, 2, len);
 
                         opt = IPV6_PMTUDISC_DO;
                         kernel_setsockopt(conn->params.local->socket,
diff --git a/net/rxrpc/recvmsg.c b/net/rxrpc/recvmsg.c
index cc21e8db25b0..9d45d8b56744 100644
--- a/net/rxrpc/recvmsg.c
+++ b/net/rxrpc/recvmsg.c
@@ -517,9 +517,10 @@ try_again:
                         ret = put_cmsg(msg, SOL_RXRPC, RXRPC_USER_CALL_ID,
                                        sizeof(unsigned int), &id32);
                 } else {
+                        unsigned long idl = call->user_call_ID;
+
                         ret = put_cmsg(msg, SOL_RXRPC, RXRPC_USER_CALL_ID,
-                                       sizeof(unsigned long),
-                                       &call->user_call_ID);
+                                       sizeof(unsigned long), &idl);
                 }
                 if (ret < 0)
                         goto error_unlock_call;
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index b3f2c15affa7..9d2cabf1dc7e 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -352,7 +352,7 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
         return res;
 out:
         if (res == ACT_P_CREATED)
-                tcf_idr_cleanup(*act, est);
+                tcf_idr_release(*act, bind);
 
         return ret;
 }
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index b7ba9b06b147..2a5c8fd860cf 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -350,7 +350,7 @@ static int tcf_csum_sctp(struct sk_buff *skb, unsigned int ihl,
 {
         struct sctphdr *sctph;
 
-        if (skb_is_gso(skb) && skb_shinfo(skb)->gso_type & SKB_GSO_SCTP)
+        if (skb_is_gso(skb) && skb_is_gso_sctp(skb))
                 return 1;
 
         sctph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*sctph));
@@ -626,7 +626,8 @@ static void tcf_csum_cleanup(struct tc_action *a)
         struct tcf_csum_params *params;
 
         params = rcu_dereference_protected(p->params, 1);
-        kfree_rcu(params, rcu);
+        if (params)
+                kfree_rcu(params, rcu);
 }
 
 static int tcf_csum_walker(struct net *net, struct sk_buff *skb,
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 06e380ae0928..7e06b9b62613 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -80,9 +80,12 @@ static void ipt_destroy_target(struct xt_entry_target *t)
 static void tcf_ipt_release(struct tc_action *a)
 {
         struct tcf_ipt *ipt = to_ipt(a);
-        ipt_destroy_target(ipt->tcfi_t);
+
+        if (ipt->tcfi_t) {
+                ipt_destroy_target(ipt->tcfi_t);
+                kfree(ipt->tcfi_t);
+        }
         kfree(ipt->tcfi_tname);
-        kfree(ipt->tcfi_t);
 }
 
 static const struct nla_policy ipt_policy[TCA_IPT_MAX + 1] = {
@@ -187,7 +190,7 @@ err2:
         kfree(tname);
 err1:
         if (ret == ACT_P_CREATED)
-                tcf_idr_cleanup(*a, est);
+                tcf_idr_release(*a, bind);
         return err;
 }
 
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 349beaffb29e..fef08835f26d 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -176,7 +176,7 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
                 p = to_pedit(*a);
                 keys = kmalloc(ksize, GFP_KERNEL);
                 if (keys == NULL) {
-                        tcf_idr_cleanup(*a, est);
+                        tcf_idr_release(*a, bind);
                         kfree(keys_ex);
                         return -ENOMEM;
                 }
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 95d3c9097b25..faebf82b99f1 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -194,7 +194,7 @@ failure:
         qdisc_put_rtab(P_tab);
         qdisc_put_rtab(R_tab);
         if (ret == ACT_P_CREATED)
-                tcf_idr_cleanup(*a, est);
+                tcf_idr_release(*a, bind);
         return err;
 }
 
diff --git a/net/sched/act_sample.c b/net/sched/act_sample.c
index 1ba0df238756..74c5d7e6a0fa 100644
--- a/net/sched/act_sample.c
+++ b/net/sched/act_sample.c
@@ -103,7 +103,8 @@ static void tcf_sample_cleanup(struct tc_action *a)
 
         psample_group = rtnl_dereference(s->psample_group);
         RCU_INIT_POINTER(s->psample_group, NULL);
-        psample_group_put(psample_group);
+        if (psample_group)
+                psample_group_put(psample_group);
 }
 
 static bool tcf_sample_dev_ok_push(struct net_device *dev)
diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index 425eac11f6da..b1f38063ada0 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -121,7 +121,7 @@ static int tcf_simp_init(struct net *net, struct nlattr *nla,
                 d = to_defact(*a);
                 ret = alloc_defdata(d, defdata);
                 if (ret < 0) {
-                        tcf_idr_cleanup(*a, est);
+                        tcf_idr_release(*a, bind);
                         return ret;
                 }
                 d->tcf_action = parm->action;
diff --git a/net/sched/act_skbmod.c b/net/sched/act_skbmod.c
index fa975262dbac..7b0700f52b50 100644
--- a/net/sched/act_skbmod.c
+++ b/net/sched/act_skbmod.c
@@ -152,7 +152,7 @@ static int tcf_skbmod_init(struct net *net, struct nlattr *nla,
         ASSERT_RTNL();
         p = kzalloc(sizeof(struct tcf_skbmod_params), GFP_KERNEL);
         if (unlikely(!p)) {
-                if (ovr)
+                if (ret == ACT_P_CREATED)
                         tcf_idr_release(*a, bind);
                 return -ENOMEM;
         }
@@ -190,7 +190,8 @@ static void tcf_skbmod_cleanup(struct tc_action *a)
         struct tcf_skbmod_params  *p;
 
         p = rcu_dereference_protected(d->skbmod_p, 1);
-        kfree_rcu(p, rcu);
+        if (p)
+                kfree_rcu(p, rcu);
 }
 
 static int tcf_skbmod_dump(struct sk_buff *skb, struct tc_action *a,
diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
index 0e23aac09ad6..1281ca463727 100644
--- a/net/sched/act_tunnel_key.c
+++ b/net/sched/act_tunnel_key.c
@@ -153,6 +153,7 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla,
                 metadata->u.tun_info.mode |= IP_TUNNEL_INFO_TX;
                 break;
         default:
+                ret = -EINVAL;
                 goto err_out;
         }
 
@@ -207,11 +208,12 @@ static void tunnel_key_release(struct tc_action *a)
         struct tcf_tunnel_key_params *params;
 
         params = rcu_dereference_protected(t->params, 1);
+        if (params) {
+                if (params->tcft_action == TCA_TUNNEL_KEY_ACT_SET)
+                        dst_release(&params->tcft_enc_metadata->dst);
 
-        if (params->tcft_action == TCA_TUNNEL_KEY_ACT_SET)
-                dst_release(&params->tcft_enc_metadata->dst);
-
-        kfree_rcu(params, rcu);
+                kfree_rcu(params, rcu);
+        }
 }
 
 static int tunnel_key_dump_addresses(struct sk_buff *skb,
diff --git a/net/sched/act_vlan.c b/net/sched/act_vlan.c
index e1a1b3f3983a..c49cb61adedf 100644
--- a/net/sched/act_vlan.c
+++ b/net/sched/act_vlan.c
@@ -195,7 +195,7 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla,
         ASSERT_RTNL();
         p = kzalloc(sizeof(*p), GFP_KERNEL);
         if (!p) {
-                if (ovr)
+                if (ret == ACT_P_CREATED)
                         tcf_idr_release(*a, bind);
                 return -ENOMEM;
         }
@@ -225,7 +225,8 @@ static void tcf_vlan_cleanup(struct tc_action *a)
         struct tcf_vlan_params *p;
 
         p = rcu_dereference_protected(v->vlan_p, 1);
-        kfree_rcu(p, rcu);
+        if (p)
+                kfree_rcu(p, rcu);
 }
 
 static int tcf_vlan_dump(struct sk_buff *skb, struct tc_action *a,
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 2bc1bc23d42e..247b7cc20c13 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -376,17 +376,12 @@ struct tcf_net {
 static unsigned int tcf_net_id;
 
 static int tcf_block_insert(struct tcf_block *block, struct net *net,
-                            u32 block_index, struct netlink_ext_ack *extack)
+                            struct netlink_ext_ack *extack)
 {
         struct tcf_net *tn = net_generic(net, tcf_net_id);
-        int err;
 
-        err = idr_alloc_u32(&tn->idr, block, &block_index, block_index,
-                            GFP_KERNEL);
-        if (err)
-                return err;
-        block->index = block_index;
-        return 0;
+        return idr_alloc_u32(&tn->idr, block, &block->index, block->index,
+                             GFP_KERNEL);
 }
 
 static void tcf_block_remove(struct tcf_block *block, struct net *net)
@@ -397,6 +392,7 @@ static void tcf_block_remove(struct tcf_block *block, struct net *net)
 }
 
 static struct tcf_block *tcf_block_create(struct net *net, struct Qdisc *q,
+                                          u32 block_index,
                                           struct netlink_ext_ack *extack)
 {
         struct tcf_block *block;
@@ -419,10 +415,13 @@ static struct tcf_block *tcf_block_create(struct net *net, struct Qdisc *q,
                 err = -ENOMEM;
                 goto err_chain_create;
         }
-        block->net = qdisc_net(q);
         block->refcnt = 1;
         block->net = net;
-        block->q = q;
+        block->index = block_index;
+
+        /* Don't store q pointer for blocks which are shared */
+        if (!tcf_block_shared(block))
+                block->q = q;
         return block;
 
 err_chain_create:
@@ -518,13 +517,12 @@ int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q,
         }
 
         if (!block) {
-                block = tcf_block_create(net, q, extack);
+                block = tcf_block_create(net, q, ei->block_index, extack);
                 if (IS_ERR(block))
                         return PTR_ERR(block);
                 created = true;
-                if (ei->block_index) {
-                        err = tcf_block_insert(block, net,
-                                               ei->block_index, extack);
+                if (tcf_block_shared(block)) {
+                        err = tcf_block_insert(block, net, extack);
                         if (err)
                                 goto err_block_insert;
                 }
@@ -1399,13 +1397,18 @@ static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
                     nla_get_u32(tca[TCA_CHAIN]) != chain->index)
                         continue;
                 if (!tcf_chain_dump(chain, q, parent, skb, cb,
-                                    index_start, &index))
+                                    index_start, &index)) {
+                        err = -EMSGSIZE;
                         break;
+                }
         }
 
         cb->args[0] = index;
 
 out:
+        /* If we did no progress, the error (EMSGSIZE) is real */
+        if (skb->len == 0 && err)
+                return err;
         return skb->len;
 }
 
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 6c7601a530e3..ed8b6a24b9e9 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -96,7 +96,7 @@ struct tc_u_hnode {
 
 struct tc_u_common {
         struct tc_u_hnode __rcu *hlist;
-        struct tcf_block        *block;
+        void                    *ptr;
         int                     refcnt;
         struct idr              handle_idr;
         struct hlist_node       hnode;
@@ -330,9 +330,25 @@ static struct hlist_head *tc_u_common_hash;
 #define U32_HASH_SHIFT 10
 #define U32_HASH_SIZE (1 << U32_HASH_SHIFT)
 
+static void *tc_u_common_ptr(const struct tcf_proto *tp)
+{
+        struct tcf_block *block = tp->chain->block;
+
+        /* The block sharing is currently supported only
+         * for classless qdiscs. In that case we use block
+         * for tc_u_common identification. In case the
+         * block is not shared, block->q is a valid pointer
+         * and we can use that. That works for classful qdiscs.
+         */
+        if (tcf_block_shared(block))
+                return block;
+        else
+                return block->q;
+}
+
 static unsigned int tc_u_hash(const struct tcf_proto *tp)
 {
-        return hash_ptr(tp->chain->block, U32_HASH_SHIFT);
+        return hash_ptr(tc_u_common_ptr(tp), U32_HASH_SHIFT);
 }
 
 static struct tc_u_common *tc_u_common_find(const struct tcf_proto *tp)
@@ -342,7 +358,7 @@ static struct tc_u_common *tc_u_common_find(const struct tcf_proto *tp)
 
         h = tc_u_hash(tp);
         hlist_for_each_entry(tc, &tc_u_common_hash[h], hnode) {
-                if (tc->block == tp->chain->block)
+                if (tc->ptr == tc_u_common_ptr(tp))
                         return tc;
         }
         return NULL;
@@ -371,7 +387,7 @@ static int u32_init(struct tcf_proto *tp)
                         kfree(root_ht);
                         return -ENOBUFS;
                 }
-                tp_c->block = tp->chain->block;
+                tp_c->ptr = tc_u_common_ptr(tp);
                 INIT_HLIST_NODE(&tp_c->hnode);
                 idr_init(&tp_c->handle_idr);
 
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 190570f21b20..7e3fbe9cc936 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -106,6 +106,14 @@ static inline void qdisc_enqueue_skb_bad_txq(struct Qdisc *q,
 
         __skb_queue_tail(&q->skb_bad_txq, skb);
 
+        if (qdisc_is_percpu_stats(q)) {
+                qdisc_qstats_cpu_backlog_inc(q, skb);
+                qdisc_qstats_cpu_qlen_inc(q);
+        } else {
+                qdisc_qstats_backlog_inc(q, skb);
+                q->q.qlen++;
+        }
+
         if (lock)
                 spin_unlock(lock);
 }
@@ -196,14 +204,6 @@ static void try_bulk_dequeue_skb_slow(struct Qdisc *q,
                         break;
                 if (unlikely(skb_get_queue_mapping(nskb) != mapping)) {
                         qdisc_enqueue_skb_bad_txq(q, nskb);
-
-                        if (qdisc_is_percpu_stats(q)) {
-                                qdisc_qstats_cpu_backlog_inc(q, nskb);
-                                qdisc_qstats_cpu_qlen_inc(q);
-                        } else {
-                                qdisc_qstats_backlog_inc(q, nskb);
-                                q->q.qlen++;
-                        }
                         break;
                 }
                 skb->next = nskb;
@@ -628,6 +628,7 @@ static int pfifo_fast_enqueue(struct sk_buff *skb, struct Qdisc *qdisc,
         int band = prio2band[skb->priority & TC_PRIO_MAX];
         struct pfifo_fast_priv *priv = qdisc_priv(qdisc);
         struct skb_array *q = band2list(priv, band);
+        unsigned int pkt_len = qdisc_pkt_len(skb);
         int err;
 
         err = skb_array_produce(q, skb);
@@ -636,7 +637,10 @@ static int pfifo_fast_enqueue(struct sk_buff *skb, struct Qdisc *qdisc,
                 return qdisc_drop_cpu(skb, qdisc, to_free);
 
         qdisc_qstats_cpu_qlen_inc(qdisc);
-        qdisc_qstats_cpu_backlog_inc(qdisc, skb);
+        /* Note: skb can not be used after skb_array_produce(),
+         * so we better not use qdisc_qstats_cpu_backlog_inc()
+         */
+        this_cpu_add(qdisc->cpu_qstats->backlog, pkt_len);
         return NET_XMIT_SUCCESS;
 }
 
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 7c179addebcd..7d6801fc5340 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -509,7 +509,7 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
         }
 
         if (unlikely(sch->q.qlen >= sch->limit))
-                return qdisc_drop(skb, sch, to_free);
+                return qdisc_drop_all(skb, sch, to_free);
 
         qdisc_qstats_backlog_inc(sch, skb);
 
diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index 229172d509cc..03225a8df973 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -188,7 +188,8 @@ static int tbf_enqueue(struct sk_buff *skb, struct Qdisc *sch,
         int ret;
 
         if (qdisc_pkt_len(skb) > q->max_size) {
-                if (skb_is_gso(skb) && skb_gso_mac_seglen(skb) <= q->max_size)
+                if (skb_is_gso(skb) &&
+                    skb_gso_validate_mac_len(skb, q->max_size))
                         return tbf_segment(skb, sch, to_free);
                 return qdisc_drop(skb, sch, to_free);
         }
diff --git a/net/sctp/debug.c b/net/sctp/debug.c
index 291c97b07058..8f6c2e8c0953 100644
--- a/net/sctp/debug.c
+++ b/net/sctp/debug.c
@@ -81,6 +81,12 @@ const char *sctp_cname(const union sctp_subtype cid)
         case SCTP_CID_RECONF:
                 return "RECONF";
 
+        case SCTP_CID_I_DATA:
+                return "I_DATA";
+
+        case SCTP_CID_I_FWD_TSN:
+                return "I_FWD_TSN";
+
         default:
                 break;
         }
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 141c9c466ec1..b381d78548ac 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -106,6 +106,7 @@ int sctp_rcv(struct sk_buff *skb)
         int family;
         struct sctp_af *af;
         struct net *net = dev_net(skb->dev);
+        bool is_gso = skb_is_gso(skb) && skb_is_gso_sctp(skb);
 
         if (skb->pkt_type != PACKET_HOST)
                 goto discard_it;
@@ -123,8 +124,7 @@ int sctp_rcv(struct sk_buff *skb)
          * it's better to just linearize it otherwise crc computing
          * takes longer.
          */
-        if ((!(skb_shinfo(skb)->gso_type & SKB_GSO_SCTP) &&
-             skb_linearize(skb)) ||
+        if ((!is_gso && skb_linearize(skb)) ||
             !pskb_may_pull(skb, sizeof(struct sctphdr)))
                 goto discard_it;
 
@@ -135,7 +135,7 @@ int sctp_rcv(struct sk_buff *skb)
         if (skb_csum_unnecessary(skb))
                 __skb_decr_checksum_unnecessary(skb);
         else if (!sctp_checksum_disable &&
-                 !(skb_shinfo(skb)->gso_type & SKB_GSO_SCTP) &&
+                 !is_gso &&
                  sctp_rcv_checksum(net, skb) < 0)
                 goto discard_it;
         skb->csum_valid = 1;
@@ -897,15 +897,12 @@ int sctp_hash_transport(struct sctp_transport *t)
         rhl_for_each_entry_rcu(transport, tmp, list, node)
                 if (transport->asoc->ep == t->asoc->ep) {
                         rcu_read_unlock();
-                        err = -EEXIST;
-                        goto out;
+                        return -EEXIST;
                 }
         rcu_read_unlock();
 
         err = rhltable_insert_key(&sctp_transport_hashtable, &arg,
                                   &t->node, sctp_hash_params);
-
-out:
         if (err)
                 pr_err_once("insert transport fail, errno %d\n", err);
 
@@ -1221,7 +1218,7 @@ static struct sctp_association *__sctp_rcv_lookup_harder(struct net *net,
          * issue as packets hitting this are mostly INIT or INIT-ACK and
          * those cannot be on GSO-style anyway.
          */
-        if ((skb_shinfo(skb)->gso_type & SKB_GSO_SCTP) == SKB_GSO_SCTP)
+        if (skb_is_gso(skb) && skb_is_gso_sctp(skb))
                 return NULL;
 
         ch = (struct sctp_chunkhdr *)skb->data;
diff --git a/net/sctp/inqueue.c b/net/sctp/inqueue.c
index 48392552ee7c..23ebc5318edc 100644
--- a/net/sctp/inqueue.c
+++ b/net/sctp/inqueue.c
@@ -170,7 +170,7 @@ next_chunk:
 
                 chunk = list_entry(entry, struct sctp_chunk, list);
 
-                if ((skb_shinfo(chunk->skb)->gso_type & SKB_GSO_SCTP) == SKB_GSO_SCTP) {
+                if (skb_is_gso(chunk->skb) && skb_is_gso_sctp(chunk->skb)) {
                         /* GSO-marked skbs but without frags, handle
                          * them normally
                          */
diff --git a/net/sctp/offload.c b/net/sctp/offload.c
index 35bc7106d182..123e9f2dc226 100644
--- a/net/sctp/offload.c
+++ b/net/sctp/offload.c
@@ -45,7 +45,7 @@ static struct sk_buff *sctp_gso_segment(struct sk_buff *skb,
         struct sk_buff *segs = ERR_PTR(-EINVAL);
         struct sctphdr *sh;
 
-        if (!(skb_shinfo(skb)->gso_type & SKB_GSO_SCTP))
+        if (!skb_is_gso_sctp(skb))
                 goto out;
 
         sh = sctp_hdr(skb);
diff --git a/net/sctp/stream.c b/net/sctp/stream.c
index cedf672487f9..f799043abec9 100644
--- a/net/sctp/stream.c
+++ b/net/sctp/stream.c
@@ -6,7 +6,7 @@
  *
  * This file is part of the SCTP kernel implementation
  *
- * These functions manipulate sctp tsn mapping array.
+ * This file contains sctp stream maniuplation primitives and helpers.
  *
  * This SCTP implementation is free software;
  * you can redistribute it and/or modify it under the terms of
diff --git a/net/sctp/stream_interleave.c b/net/sctp/stream_interleave.c
index 8c7cf8f08711..d3764c181299 100644
--- a/net/sctp/stream_interleave.c
+++ b/net/sctp/stream_interleave.c
@@ -3,7 +3,8 @@
  *
  * This file is part of the SCTP kernel implementation
  *
- * These functions manipulate sctp stream queue/scheduling.
+ * These functions implement sctp stream message interleaving, mostly
+ * including I-DATA and I-FORWARD-TSN chunks process.
  *
  * This SCTP implementation is free software;
  * you can redistribute it and/or modify it under the terms of
@@ -954,12 +955,8 @@ static void sctp_renege_events(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
         __u32 freed = 0;
         __u16 needed;
 
-        if (chunk) {
-                needed = ntohs(chunk->chunk_hdr->length);
-                needed -= sizeof(struct sctp_idata_chunk);
-        } else {
-                needed = SCTP_DEFAULT_MAXWINDOW;
-        }
+        needed = ntohs(chunk->chunk_hdr->length) -
+                 sizeof(struct sctp_idata_chunk);
 
         if (skb_queue_empty(&asoc->base.sk->sk_receive_queue)) {
                 freed = sctp_ulpq_renege_list(ulpq, &ulpq->lobby, needed);
@@ -971,9 +968,8 @@ static void sctp_renege_events(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
                                                        needed);
         }
 
-        if (chunk && freed >= needed)
-                if (sctp_ulpevent_idata(ulpq, chunk, gfp) <= 0)
-                        sctp_intl_start_pd(ulpq, gfp);
+        if (freed >= needed && sctp_ulpevent_idata(ulpq, chunk, gfp) <= 0)
+                sctp_intl_start_pd(ulpq, gfp);
 
         sk_mem_reclaim(asoc->base.sk);
 }
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index da1a5cdefd13..1e0d780855c3 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -978,10 +978,6 @@ out:
                 lsmc->clcsock = NULL;
         }
         release_sock(lsk);
-        /* no more listening, wake up smc_close_wait_listen_clcsock and
-         * accept
-         */
-        lsk->sk_state_change(lsk);
         sock_put(&lsmc->sk); /* sock_hold in smc_listen */
 }
 
@@ -1406,8 +1402,10 @@ static int smc_create(struct net *net, struct socket *sock, int protocol,
         smc->use_fallback = false; /* assume rdma capability first */
         rc = sock_create_kern(net, PF_INET, SOCK_STREAM,
                               IPPROTO_TCP, &smc->clcsock);
-        if (rc)
+        if (rc) {
                 sk_common_release(sk);
+                goto out;
+        }
         smc->sk.sk_sndbuf = max(smc->clcsock->sk->sk_sndbuf, SMC_BUF_MIN_SIZE);
         smc->sk.sk_rcvbuf = max(smc->clcsock->sk->sk_rcvbuf, SMC_BUF_MIN_SIZE);
 
diff --git a/net/smc/smc_cdc.c b/net/smc/smc_cdc.c
index 3cd086e5bd28..b42395d24cba 100644
--- a/net/smc/smc_cdc.c
+++ b/net/smc/smc_cdc.c
@@ -269,7 +269,7 @@ static void smc_cdc_rx_handler(struct ib_wc *wc, void *buf)
 
         if (wc->byte_len < offsetof(struct smc_cdc_msg, reserved))
                 return; /* short message */
-        if (cdc->len != sizeof(*cdc))
+        if (cdc->len != SMC_WR_TX_SIZE)
                 return; /* invalid message */
         smc_cdc_msg_recv(cdc, link, wc->wr_id);
 }
diff --git a/net/smc/smc_close.c b/net/smc/smc_close.c
index e339c0186dcf..fa41d9881741 100644
--- a/net/smc/smc_close.c
+++ b/net/smc/smc_close.c
@@ -30,27 +30,6 @@ static void smc_close_cleanup_listen(struct sock *parent)
                 smc_close_non_accepted(sk);
 }
 
-static void smc_close_wait_listen_clcsock(struct smc_sock *smc)
-{
-        DEFINE_WAIT_FUNC(wait, woken_wake_function);
-        struct sock *sk = &smc->sk;
-        signed long timeout;
-
-        timeout = SMC_CLOSE_WAIT_LISTEN_CLCSOCK_TIME;
-        add_wait_queue(sk_sleep(sk), &wait);
-        do {
-                release_sock(sk);
-                if (smc->clcsock)
-                        timeout = wait_woken(&wait, TASK_UNINTERRUPTIBLE,
-                                             timeout);
-                sched_annotate_sleep();
-                lock_sock(sk);
-                if (!smc->clcsock)
-                        break;
-        } while (timeout);
-        remove_wait_queue(sk_sleep(sk), &wait);
-}
-
 /* wait for sndbuf data being transmitted */
 static void smc_close_stream_wait(struct smc_sock *smc, long timeout)
 {
@@ -204,9 +183,11 @@ again:
                         rc = kernel_sock_shutdown(smc->clcsock, SHUT_RDWR);
                         /* wake up kernel_accept of smc_tcp_listen_worker */
                         smc->clcsock->sk->sk_data_ready(smc->clcsock->sk);
-                        smc_close_wait_listen_clcsock(smc);
                 }
                 smc_close_cleanup_listen(sk);
+                release_sock(sk);
+                flush_work(&smc->tcp_listen_work);
+                lock_sock(sk);
                 break;
         case SMC_ACTIVE:
                 smc_close_stream_wait(smc, timeout);
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 2424c7100aaf..645dd226177b 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -177,6 +177,7 @@ static int smc_lgr_create(struct smc_sock *smc, __be32 peer_in_addr,
 
         lnk = &lgr->lnk[SMC_SINGLE_LINK];
         /* initialize link */
+        lnk->link_id = SMC_SINGLE_LINK;
         lnk->smcibdev = smcibdev;
         lnk->ibport = ibport;
         lnk->path_mtu = smcibdev->pattr[ibport - 1].active_mtu;
@@ -465,7 +466,7 @@ create:
                 rc = smc_link_determine_gid(conn->lgr);
         }
         conn->local_tx_ctrl.common.type = SMC_CDC_MSG_TYPE;
-        conn->local_tx_ctrl.len = sizeof(struct smc_cdc_msg);
+        conn->local_tx_ctrl.len = SMC_WR_TX_SIZE;
 #ifndef KERNEL_HAS_ATOMIC64
         spin_lock_init(&conn->acurs_lock);
 #endif
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c
index 92fe4cc8c82c..b4aa4fcedb96 100644
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -92,7 +92,7 @@ int smc_llc_send_confirm_link(struct smc_link *link, u8 mac[],
         memcpy(confllc->sender_mac, mac, ETH_ALEN);
         memcpy(confllc->sender_gid, gid, SMC_GID_SIZE);
         hton24(confllc->sender_qp_num, link->roce_qp->qp_num);
-        /* confllc->link_num = SMC_SINGLE_LINK; already done by memset above */
+        confllc->link_num = link->link_id;
         memcpy(confllc->link_uid, lgr->id, SMC_LGR_ID_SIZE);
         confllc->max_links = SMC_LINKS_PER_LGR_MAX;
         /* send llc message */
diff --git a/net/socket.c b/net/socket.c
index a93c99b518ca..08847c3b8c39 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -2587,6 +2587,11 @@ void sock_unregister(int family)
 }
 EXPORT_SYMBOL(sock_unregister);
 
+bool sock_is_registered(int family)
+{
+        return family < NPROTO && rcu_access_pointer(net_families[family]);
+}
+
 static int __init sock_init(void)
 {
         int err;
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index c8001471da6c..3e3dce3d4c63 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -813,7 +813,7 @@ err_out:
         return err;
 }
 
-int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
+int __tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
 {
         int err;
         char *name;
@@ -835,20 +835,27 @@ int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
 
         name = nla_data(attrs[TIPC_NLA_BEARER_NAME]);
 
-        rtnl_lock();
         bearer = tipc_bearer_find(net, name);
-        if (!bearer) {
-                rtnl_unlock();
+        if (!bearer)
                 return -EINVAL;
-        }
 
         bearer_disable(net, bearer);
-        rtnl_unlock();
 
         return 0;
 }
 
-int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
+int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
+{
+        int err;
+
+        rtnl_lock();
+        err = __tipc_nl_bearer_disable(skb, info);
+        rtnl_unlock();
+
+        return err;
+}
+
+int __tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
 {
         int err;
         char *bearer;
@@ -890,15 +897,18 @@ int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
                         prio = nla_get_u32(props[TIPC_NLA_PROP_PRIO]);
         }
 
+        return tipc_enable_bearer(net, bearer, domain, prio, attrs);
+}
+
+int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
+{
+        int err;
+
         rtnl_lock();
-        err = tipc_enable_bearer(net, bearer, domain, prio, attrs);
-        if (err) {
-                rtnl_unlock();
-                return err;
-        }
+        err = __tipc_nl_bearer_enable(skb, info);
         rtnl_unlock();
 
-        return 0;
+        return err;
 }
 
 int tipc_nl_bearer_add(struct sk_buff *skb, struct genl_info *info)
@@ -944,7 +954,7 @@ int tipc_nl_bearer_add(struct sk_buff *skb, struct genl_info *info)
         return 0;
 }
 
-int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info)
+int __tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info)
 {
         int err;
         char *name;
@@ -965,22 +975,17 @@ int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info)
                 return -EINVAL;
         name = nla_data(attrs[TIPC_NLA_BEARER_NAME]);
 
-        rtnl_lock();
         b = tipc_bearer_find(net, name);
-        if (!b) {
-                rtnl_unlock();
+        if (!b)
                 return -EINVAL;
-        }
 
         if (attrs[TIPC_NLA_BEARER_PROP]) {
                 struct nlattr *props[TIPC_NLA_PROP_MAX + 1];
 
                 err = tipc_nl_parse_link_prop(attrs[TIPC_NLA_BEARER_PROP],
                                               props);
-                if (err) {
-                        rtnl_unlock();
+                if (err)
                         return err;
-                }
 
                 if (props[TIPC_NLA_PROP_TOL])
                         b->tolerance = nla_get_u32(props[TIPC_NLA_PROP_TOL]);
@@ -989,11 +994,21 @@ int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info)
                 if (props[TIPC_NLA_PROP_WIN])
                         b->window = nla_get_u32(props[TIPC_NLA_PROP_WIN]);
         }
-        rtnl_unlock();
 
         return 0;
 }
 
+int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info)
+{
+        int err;
+
+        rtnl_lock();
+        err = __tipc_nl_bearer_set(skb, info);
+        rtnl_unlock();
+
+        return err;
+}
+
 static int __tipc_nl_add_media(struct tipc_nl_msg *msg,
                                struct tipc_media *media, int nlflags)
 {
@@ -1115,7 +1130,7 @@ err_out:
         return err;
 }
 
-int tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info)
+int __tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info)
 {
         int err;
         char *name;
@@ -1133,22 +1148,17 @@ int tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info)
                 return -EINVAL;
         name = nla_data(attrs[TIPC_NLA_MEDIA_NAME]);
 
-        rtnl_lock();
         m = tipc_media_find(name);
-        if (!m) {
-                rtnl_unlock();
+        if (!m)
                 return -EINVAL;
-        }
 
         if (attrs[TIPC_NLA_MEDIA_PROP]) {
                 struct nlattr *props[TIPC_NLA_PROP_MAX + 1];
 
                 err = tipc_nl_parse_link_prop(attrs[TIPC_NLA_MEDIA_PROP],
                                               props);
-                if (err) {
-                        rtnl_unlock();
+                if (err)
                         return err;
-                }
 
                 if (props[TIPC_NLA_PROP_TOL])
                         m->tolerance = nla_get_u32(props[TIPC_NLA_PROP_TOL]);
@@ -1157,7 +1167,17 @@ int tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info)
                 if (props[TIPC_NLA_PROP_WIN])
                         m->window = nla_get_u32(props[TIPC_NLA_PROP_WIN]);
         }
-        rtnl_unlock();
 
         return 0;
 }
+
+int tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info)
+{
+        int err;
+
+        rtnl_lock();
+        err = __tipc_nl_media_set(skb, info);
+        rtnl_unlock();
+
+        return err;
+}
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index 42d6eeeb646d..a53613d95bc9 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -188,15 +188,19 @@ extern struct tipc_media udp_media_info;
 #endif
 
 int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info);
+int __tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info);
 int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info);
+int __tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info);
 int tipc_nl_bearer_dump(struct sk_buff *skb, struct netlink_callback *cb);
 int tipc_nl_bearer_get(struct sk_buff *skb, struct genl_info *info);
 int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info);
+int __tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info);
 int tipc_nl_bearer_add(struct sk_buff *skb, struct genl_info *info);
 
 int tipc_nl_media_dump(struct sk_buff *skb, struct netlink_callback *cb);
 int tipc_nl_media_get(struct sk_buff *skb, struct genl_info *info);
 int tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info);
+int __tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info);
 
 int tipc_media_set_priority(const char *name, u32 new_value);
 int tipc_media_set_window(const char *name, u32 new_value);
diff --git a/net/tipc/group.c b/net/tipc/group.c
index 122162a31816..04e516d18054 100644
--- a/net/tipc/group.c
+++ b/net/tipc/group.c
@@ -189,6 +189,7 @@ struct tipc_group *tipc_group_create(struct net *net, u32 portid,
         grp->loopback = mreq->flags & TIPC_GROUP_LOOPBACK;
         grp->events = mreq->flags & TIPC_GROUP_MEMBER_EVTS;
         grp->open = group_is_open;
+        *grp->open = false;
         filter |= global ? TIPC_SUB_CLUSTER_SCOPE : TIPC_SUB_NODE_SCOPE;
         if (tipc_topsrv_kern_subscr(net, portid, type, 0, ~0,
                                     filter, &grp->subid))
diff --git a/net/tipc/net.c b/net/tipc/net.c
index 719c5924b638..1a2fde0d6f61 100644
--- a/net/tipc/net.c
+++ b/net/tipc/net.c
@@ -200,7 +200,7 @@ out:
         return skb->len;
 }
 
-int tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info)
+int __tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info)
 {
         struct net *net = sock_net(skb->sk);
         struct tipc_net *tn = net_generic(net, tipc_net_id);
@@ -241,10 +241,19 @@ int tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info)
                 if (!tipc_addr_node_valid(addr))
                         return -EINVAL;
 
-                rtnl_lock();
                 tipc_net_start(net, addr);
-                rtnl_unlock();
         }
 
         return 0;
 }
+
+int tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info)
+{
+        int err;
+
+        rtnl_lock();
+        err = __tipc_nl_net_set(skb, info);
+        rtnl_unlock();
+
+        return err;
+}
diff --git a/net/tipc/net.h b/net/tipc/net.h
index c7c254902873..c0306aa2374b 100644
--- a/net/tipc/net.h
+++ b/net/tipc/net.h
@@ -47,5 +47,6 @@ void tipc_net_stop(struct net *net);
 
 int tipc_nl_net_dump(struct sk_buff *skb, struct netlink_callback *cb);
 int tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info);
+int __tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info);
 
 #endif
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index e48f0b2c01b9..4492cda45566 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -285,10 +285,6 @@ static int __tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd,
         if (!trans_buf)
                 return -ENOMEM;
 
-        err = (*cmd->transcode)(cmd, trans_buf, msg);
-        if (err)
-                goto trans_out;
-
         attrbuf = kmalloc((tipc_genl_family.maxattr + 1) *
                         sizeof(struct nlattr *), GFP_KERNEL);
         if (!attrbuf) {
@@ -296,27 +292,34 @@ static int __tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd,
                 goto trans_out;
         }
 
-        err = nla_parse(attrbuf, tipc_genl_family.maxattr,
-                        (const struct nlattr *)trans_buf->data,
-                        trans_buf->len, NULL, NULL);
-        if (err)
-                goto parse_out;
-
         doit_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
         if (!doit_buf) {
                 err = -ENOMEM;
-                goto parse_out;
+                goto attrbuf_out;
         }
 
-        doit_buf->sk = msg->dst_sk;
-
         memset(&info, 0, sizeof(info));
         info.attrs = attrbuf;
 
+        rtnl_lock();
+        err = (*cmd->transcode)(cmd, trans_buf, msg);
+        if (err)
+                goto doit_out;
+
+        err = nla_parse(attrbuf, tipc_genl_family.maxattr,
+                        (const struct nlattr *)trans_buf->data,
+                        trans_buf->len, NULL, NULL);
+        if (err)
+                goto doit_out;
+
+        doit_buf->sk = msg->dst_sk;
+
         err = (*cmd->doit)(doit_buf, &info);
+doit_out:
+        rtnl_unlock();
 
         kfree_skb(doit_buf);
-parse_out:
+attrbuf_out:
         kfree(attrbuf);
 trans_out:
         kfree_skb(trans_buf);
@@ -722,13 +725,13 @@ static int tipc_nl_compat_link_set(struct tipc_nl_compat_cmd_doit *cmd,
 
         media = tipc_media_find(lc->name);
         if (media) {
-                cmd->doit = &tipc_nl_media_set;
+                cmd->doit = &__tipc_nl_media_set;
                 return tipc_nl_compat_media_set(skb, msg);
         }
 
         bearer = tipc_bearer_find(msg->net, lc->name);
         if (bearer) {
-                cmd->doit = &tipc_nl_bearer_set;
+                cmd->doit = &__tipc_nl_bearer_set;
                 return tipc_nl_compat_bearer_set(skb, msg);
         }
 
@@ -1089,12 +1092,12 @@ static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg)
                 return tipc_nl_compat_dumpit(&dump, msg);
         case TIPC_CMD_ENABLE_BEARER:
                 msg->req_type = TIPC_TLV_BEARER_CONFIG;
-                doit.doit = tipc_nl_bearer_enable;
+                doit.doit = __tipc_nl_bearer_enable;
                 doit.transcode = tipc_nl_compat_bearer_enable;
                 return tipc_nl_compat_doit(&doit, msg);
         case TIPC_CMD_DISABLE_BEARER:
                 msg->req_type = TIPC_TLV_BEARER_NAME;
-                doit.doit = tipc_nl_bearer_disable;
+                doit.doit = __tipc_nl_bearer_disable;
                 doit.transcode = tipc_nl_compat_bearer_disable;
                 return tipc_nl_compat_doit(&doit, msg);
         case TIPC_CMD_SHOW_LINK_STATS:
@@ -1148,12 +1151,12 @@ static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg)
                 return tipc_nl_compat_dumpit(&dump, msg);
         case TIPC_CMD_SET_NODE_ADDR:
                 msg->req_type = TIPC_TLV_NET_ADDR;
-                doit.doit = tipc_nl_net_set;
+                doit.doit = __tipc_nl_net_set;
                 doit.transcode = tipc_nl_compat_net_set;
                 return tipc_nl_compat_doit(&doit, msg);
         case TIPC_CMD_SET_NETID:
                 msg->req_type = TIPC_TLV_UNSIGNED;
-                doit.doit = tipc_nl_net_set;
+                doit.doit = __tipc_nl_net_set;
                 doit.transcode = tipc_nl_compat_net_set;
                 return tipc_nl_compat_doit(&doit, msg);
         case TIPC_CMD_GET_NETID:
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index b0323ec7971e..7dfa9fc99ec3 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -473,6 +473,7 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
         sk->sk_write_space = tipc_write_space;
         sk->sk_destruct = tipc_sock_destruct;
         tsk->conn_timeout = CONN_TIMEOUT_DEFAULT;
+        tsk->group_is_open = true;
         atomic_set(&tsk->dupl_rcvcnt, 0);
 
         /* Start out with safe limits until we receive an advertised window */
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index b0d5fcea47e7..d824d548447e 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -46,16 +46,26 @@ MODULE_DESCRIPTION("Transport Layer Security Support");
 MODULE_LICENSE("Dual BSD/GPL");
 
 enum {
+        TLSV4,
+        TLSV6,
+        TLS_NUM_PROTS,
+};
+
+enum {
         TLS_BASE_TX,
         TLS_SW_TX,
         TLS_NUM_CONFIG,
 };
 
-static struct proto tls_prots[TLS_NUM_CONFIG];
+static struct proto *saved_tcpv6_prot;
+static DEFINE_MUTEX(tcpv6_prot_mutex);
+static struct proto tls_prots[TLS_NUM_PROTS][TLS_NUM_CONFIG];
 
 static inline void update_sk_prot(struct sock *sk, struct tls_context *ctx)
 {
-        sk->sk_prot = &tls_prots[ctx->tx_conf];
+        int ip_ver = sk->sk_family == AF_INET6 ? TLSV6 : TLSV4;
+
+        sk->sk_prot = &tls_prots[ip_ver][ctx->tx_conf];
 }
 
 int wait_on_pending_writer(struct sock *sk, long *timeo)
@@ -308,8 +318,11 @@ static int do_tls_getsockopt_tx(struct sock *sk, char __user *optval,
                         goto out;
                 }
                 lock_sock(sk);
-                memcpy(crypto_info_aes_gcm_128->iv, ctx->iv,
+                memcpy(crypto_info_aes_gcm_128->iv,
+                       ctx->iv + TLS_CIPHER_AES_GCM_128_SALT_SIZE,
                        TLS_CIPHER_AES_GCM_128_IV_SIZE);
+                memcpy(crypto_info_aes_gcm_128->rec_seq, ctx->rec_seq,
+                       TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE);
                 release_sock(sk);
                 if (copy_to_user(optval,
                                  crypto_info_aes_gcm_128,
@@ -375,7 +388,7 @@ static int do_tls_setsockopt_tx(struct sock *sk, char __user *optval,
         rc = copy_from_user(crypto_info, optval, sizeof(*crypto_info));
         if (rc) {
                 rc = -EFAULT;
-                goto out;
+                goto err_crypto_info;
         }
 
         /* check version */
@@ -450,8 +463,21 @@ static int tls_setsockopt(struct sock *sk, int level, int optname,
         return do_tls_setsockopt(sk, optname, optval, optlen);
 }
 
+static void build_protos(struct proto *prot, struct proto *base)
+{
+        prot[TLS_BASE_TX] = *base;
+        prot[TLS_BASE_TX].setsockopt    = tls_setsockopt;
+        prot[TLS_BASE_TX].getsockopt    = tls_getsockopt;
+        prot[TLS_BASE_TX].close         = tls_sk_proto_close;
+
+        prot[TLS_SW_TX] = prot[TLS_BASE_TX];
+        prot[TLS_SW_TX].sendmsg         = tls_sw_sendmsg;
+        prot[TLS_SW_TX].sendpage        = tls_sw_sendpage;
+}
+
 static int tls_init(struct sock *sk)
 {
+        int ip_ver = sk->sk_family == AF_INET6 ? TLSV6 : TLSV4;
         struct inet_connection_sock *icsk = inet_csk(sk);
         struct tls_context *ctx;
         int rc = 0;
@@ -476,6 +502,17 @@ static int tls_init(struct sock *sk)
         ctx->getsockopt = sk->sk_prot->getsockopt;
         ctx->sk_proto_close = sk->sk_prot->close;
 
+        /* Build IPv6 TLS whenever the address of tcpv6_prot changes */
+        if (ip_ver == TLSV6 &&
+            unlikely(sk->sk_prot != smp_load_acquire(&saved_tcpv6_prot))) {
+                mutex_lock(&tcpv6_prot_mutex);
+                if (likely(sk->sk_prot != saved_tcpv6_prot)) {
+                        build_protos(tls_prots[TLSV6], sk->sk_prot);
+                        smp_store_release(&saved_tcpv6_prot, sk->sk_prot);
+                }
+                mutex_unlock(&tcpv6_prot_mutex);
+        }
+
         ctx->tx_conf = TLS_BASE_TX;
         update_sk_prot(sk, ctx);
 out:
@@ -490,21 +527,9 @@ static struct tcp_ulp_ops tcp_tls_ulp_ops __read_mostly = {
         .init                   = tls_init,
 };
 
-static void build_protos(struct proto *prot, struct proto *base)
-{
-        prot[TLS_BASE_TX] = *base;
-        prot[TLS_BASE_TX].setsockopt    = tls_setsockopt;
-        prot[TLS_BASE_TX].getsockopt    = tls_getsockopt;
-        prot[TLS_BASE_TX].close         = tls_sk_proto_close;
-
-        prot[TLS_SW_TX] = prot[TLS_BASE_TX];
-        prot[TLS_SW_TX].sendmsg         = tls_sw_sendmsg;
-        prot[TLS_SW_TX].sendpage        = tls_sw_sendpage;
-}
-
 static int __init tls_register(void)
 {
-        build_protos(tls_prots, &tcp_prot);
+        build_protos(tls_prots[TLSV4], &tcp_prot);
 
         tcp_register_ulp(&tcp_tls_ulp_ops);
 
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index d545e1d0dea2..2d465bdeccbc 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1825,7 +1825,7 @@ out:
 }
 
 /* We use paged skbs for stream sockets, and limit occupancy to 32768
- * bytes, and a minimun of a full page.
+ * bytes, and a minimum of a full page.
  */
 #define UNIX_SKB_FRAGS_SZ (PAGE_SIZE << get_order(32768))
 
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig
index 1abcc4fc4df1..41722046b937 100644
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -34,9 +34,10 @@ config CFG80211
 
           When built as a module it will be called cfg80211.
 
+if CFG80211
+
 config NL80211_TESTMODE
         bool "nl80211 testmode command"
-        depends on CFG80211
         help
           The nl80211 testmode command helps implementing things like
           factory calibration or validation tools for wireless chips.
@@ -51,7 +52,6 @@ config NL80211_TESTMODE
 
 config CFG80211_DEVELOPER_WARNINGS
         bool "enable developer warnings"
-        depends on CFG80211
         default n
         help
           This option enables some additional warnings that help
@@ -68,7 +68,7 @@ config CFG80211_DEVELOPER_WARNINGS
 
 config CFG80211_CERTIFICATION_ONUS
         bool "cfg80211 certification onus"
-        depends on CFG80211 && EXPERT
+        depends on EXPERT
         default n
         ---help---
           You should disable this option unless you are both capable
@@ -159,7 +159,6 @@ config CFG80211_REG_RELAX_NO_IR
 
 config CFG80211_DEFAULT_PS
         bool "enable powersave by default"
-        depends on CFG80211
         default y
         help
           This option enables powersave mode by default.
@@ -170,7 +169,6 @@ config CFG80211_DEFAULT_PS
 
 config CFG80211_DEBUGFS
         bool "cfg80211 DebugFS entries"
-        depends on CFG80211
         depends on DEBUG_FS
         ---help---
           You can enable this if you want debugfs entries for cfg80211.
@@ -180,7 +178,6 @@ config CFG80211_DEBUGFS
 config CFG80211_CRDA_SUPPORT
         bool "support CRDA" if EXPERT
         default y
-        depends on CFG80211
         help
           You should enable this option unless you know for sure you have no
           need for it, for example when using internal regdb (above) or the
@@ -190,7 +187,6 @@ config CFG80211_CRDA_SUPPORT
 
 config CFG80211_WEXT
         bool "cfg80211 wireless extensions compatibility" if !CFG80211_WEXT_EXPORT
-        depends on CFG80211
         select WEXT_CORE
         default y if CFG80211_WEXT_EXPORT
         help
@@ -199,11 +195,12 @@ config CFG80211_WEXT
 
 config CFG80211_WEXT_EXPORT
         bool
-        depends on CFG80211
         help
           Drivers should select this option if they require cfg80211's
           wext compatibility symbols to be exported.
 
+endif # CFG80211
+
 config LIB80211
         tristate
         default n
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 51aa55618ef7..b12da6ef3c12 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -170,9 +170,28 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
                 enum nl80211_bss_scan_width scan_width;
                 struct ieee80211_supported_band *sband =
                                 rdev->wiphy.bands[setup->chandef.chan->band];
-                scan_width = cfg80211_chandef_to_scan_width(&setup->chandef);
-                setup->basic_rates = ieee80211_mandatory_rates(sband,
-                                                               scan_width);
+
+                if (setup->chandef.chan->band == NL80211_BAND_2GHZ) {
+                        int i;
+
+                        /*
+                         * Older versions selected the mandatory rates for
+                         * 2.4 GHz as well, but were broken in that only
+                         * 1 Mbps was regarded as a mandatory rate. Keep
+                         * using just 1 Mbps as the default basic rate for
+                         * mesh to be interoperable with older versions.
+                         */
+                        for (i = 0; i < sband->n_bitrates; i++) {
+                                if (sband->bitrates[i].bitrate == 10) {
+                                        setup->basic_rates = BIT(i);
+                                        break;
+                                }
+                        }
+                } else {
+                        scan_width = cfg80211_chandef_to_scan_width(&setup->chandef);
+                        setup->basic_rates = ieee80211_mandatory_rates(sband,
+                                                                       scan_width);
+                }
         }
 
         err = cfg80211_chandef_dfs_required(&rdev->wiphy,
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index fdb3646274a5..701cfd7acc1b 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -1032,6 +1032,8 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
         wdev->current_bss = NULL;
         wdev->ssid_len = 0;
         wdev->conn_owner_nlportid = 0;
+        kzfree(wdev->connect_keys);
+        wdev->connect_keys = NULL;
 
         nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
 
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 8e70291e586a..e87d6c4dd5b6 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -217,7 +217,7 @@ bool xfrm_dev_offload_ok(struct sk_buff *skb, struct xfrm_state *x)
                 if (skb->len <= mtu)
                         goto ok;
 
-                if (skb_is_gso(skb) && skb_gso_validate_mtu(skb, mtu))
+                if (skb_is_gso(skb) && skb_gso_validate_network_len(skb, mtu))
                         goto ok;
         }
 
diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c
index ccfdc7115a83..a00ec715aa46 100644
--- a/net/xfrm/xfrm_ipcomp.c
+++ b/net/xfrm/xfrm_ipcomp.c
@@ -283,7 +283,7 @@ static struct crypto_comp * __percpu *ipcomp_alloc_tfms(const char *alg_name)
                 struct crypto_comp *tfm;
 
                 /* This can be any valid CPU ID so we don't need locking. */
-                tfm = __this_cpu_read(*pos->tfms);
+                tfm = this_cpu_read(*pos->tfms);
 
                 if (!strcmp(crypto_comp_name(tfm), alg_name)) {
                         pos->users++;
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 7a23078132cf..625b3fca5704 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1458,10 +1458,13 @@ xfrm_tmpl_resolve(struct xfrm_policy **pols, int npols, const struct flowi *fl,
 static int xfrm_get_tos(const struct flowi *fl, int family)
 {
         const struct xfrm_policy_afinfo *afinfo;
-        int tos = 0;
+        int tos;
 
         afinfo = xfrm_policy_get_afinfo(family);
-        tos = afinfo ? afinfo->get_tos(fl) : 0;
+        if (!afinfo)
+                return 0;
+
+        tos = afinfo->get_tos(fl);
 
         rcu_read_unlock();
 
@@ -1891,7 +1894,7 @@ static void xfrm_policy_queue_process(struct timer_list *t)
         spin_unlock(&pq->hold_queue.lock);
 
         dst_hold(xfrm_dst_path(dst));
-        dst = xfrm_lookup(net, xfrm_dst_path(dst), &fl, sk, 0);
+        dst = xfrm_lookup(net, xfrm_dst_path(dst), &fl, sk, XFRM_LOOKUP_QUEUE);
         if (IS_ERR(dst))
                 goto purge_queue;
 
@@ -2729,14 +2732,14 @@ static const void *xfrm_get_dst_nexthop(const struct dst_entry *dst,
         while (dst->xfrm) {
                 const struct xfrm_state *xfrm = dst->xfrm;
 
+                dst = xfrm_dst_child(dst);
+
                 if (xfrm->props.mode == XFRM_MODE_TRANSPORT)
                         continue;
                 if (xfrm->type->flags & XFRM_TYPE_REMOTE_COADDR)
                         daddr = xfrm->coaddr;
                 else if (!(xfrm->type->flags & XFRM_TYPE_LOCAL_COADDR))
                         daddr = &xfrm->id.daddr;
-
-                dst = xfrm_dst_child(dst);
         }
         return daddr;
 }
diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c
index 1d38c6acf8af..9e3a5e85f828 100644
--- a/net/xfrm/xfrm_replay.c
+++ b/net/xfrm/xfrm_replay.c
@@ -660,7 +660,7 @@ static int xfrm_replay_overflow_offload_esn(struct xfrm_state *x, struct sk_buff
                 } else {
                         XFRM_SKB_CB(skb)->seq.output.low = oseq + 1;
                         XFRM_SKB_CB(skb)->seq.output.hi = oseq_hi;
-                        xo->seq.low = oseq = oseq + 1;
+                        xo->seq.low = oseq + 1;
                         xo->seq.hi = oseq_hi;
                         oseq += skb_shinfo(skb)->gso_segs;
                 }
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 54e21f19d722..f9d2f2233f09 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -2056,6 +2056,11 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen
         struct xfrm_mgr *km;
         struct xfrm_policy *pol = NULL;
 
+#ifdef CONFIG_COMPAT
+        if (in_compat_syscall())
+                return -EOPNOTSUPP;
+#endif
+
         if (!optval && !optlen) {
                 xfrm_sk_policy_insert(sk, XFRM_POLICY_IN, NULL);
                 xfrm_sk_policy_insert(sk, XFRM_POLICY_OUT, NULL);
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 7f52b8eb177d..080035f056d9 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -121,22 +121,17 @@ static inline int verify_replay(struct xfrm_usersa_info *p,
         struct nlattr *rt = attrs[XFRMA_REPLAY_ESN_VAL];
         struct xfrm_replay_state_esn *rs;
 
-        if (p->flags & XFRM_STATE_ESN) {
-                if (!rt)
-                        return -EINVAL;
+        if (!rt)
+                return (p->flags & XFRM_STATE_ESN) ? -EINVAL : 0;
 
-                rs = nla_data(rt);
+        rs = nla_data(rt);
 
-                if (rs->bmp_len > XFRMA_REPLAY_ESN_MAX / sizeof(rs->bmp[0]) / 8)
-                        return -EINVAL;
-
-                if (nla_len(rt) < (int)xfrm_replay_state_esn_len(rs) &&
-                    nla_len(rt) != sizeof(*rs))
-                        return -EINVAL;
-        }
+        if (rs->bmp_len > XFRMA_REPLAY_ESN_MAX / sizeof(rs->bmp[0]) / 8)
+                return -EINVAL;
 
-        if (!rt)
-                return 0;
+        if (nla_len(rt) < (int)xfrm_replay_state_esn_len(rs) &&
+            nla_len(rt) != sizeof(*rs))
+                return -EINVAL;
 
         /* As only ESP and AH support ESN feature. */
         if ((p->id.proto != IPPROTO_ESP) && (p->id.proto != IPPROTO_AH))
diff --git a/samples/seccomp/Makefile b/samples/seccomp/Makefile
index 0e349b80686e..ba942e3ead89 100644
--- a/samples/seccomp/Makefile
+++ b/samples/seccomp/Makefile
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
+ifndef CROSS_COMPILE
 hostprogs-$(CONFIG_SAMPLE_SECCOMP) := bpf-fancy dropper bpf-direct
 
 HOSTCFLAGS_bpf-fancy.o += -I$(objtree)/usr/include
@@ -16,7 +17,6 @@ HOSTCFLAGS_bpf-direct.o += -idirafter $(objtree)/include
 bpf-direct-objs := bpf-direct.o
 
 # Try to match the kernel target.
-ifndef CROSS_COMPILE
 ifndef CONFIG_64BIT
 
 # s390 has -m31 flag to build 31 bit binaries
@@ -35,12 +35,4 @@ HOSTLOADLIBES_bpf-fancy += $(MFLAG)
 HOSTLOADLIBES_dropper += $(MFLAG)
 endif
 always := $(hostprogs-m)
-else
-# MIPS system calls are defined based on the -mabi that is passed
-# to the toolchain which may or may not be a valid option
-# for the host toolchain. So disable tests if target architecture
-# is MIPS but the host isn't.
-ifndef CONFIG_MIPS
-always := $(hostprogs-m)
-endif
 endif
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 47cddf32aeba..4f2b25d43ec9 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -256,6 +256,8 @@ __objtool_obj := $(objtree)/tools/objtool/objtool
 
 objtool_args = $(if $(CONFIG_UNWINDER_ORC),orc generate,check)
 
+objtool_args += $(if $(part-of-module), --module,)
+
 ifndef CONFIG_FRAME_POINTER
 objtool_args += --no-fp
 endif
@@ -264,6 +266,12 @@ objtool_args += --no-unreachable
 else
 objtool_args += $(call cc-ifversion, -lt, 0405, --no-unreachable)
 endif
+ifdef CONFIG_RETPOLINE
+ifneq ($(RETPOLINE_CFLAGS),)
+  objtool_args += --retpoline
+endif
+endif
+
 
 ifdef CONFIG_MODVERSIONS
 objtool_o = $(@D)/.tmp_$(@F)
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 5589bae34af6..a6f538b31ad6 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -297,11 +297,11 @@ cmd_dt_S_dtb=						\
         echo '\#include <asm-generic/vmlinux.lds.h>';   \
         echo '.section .dtb.init.rodata,"a"';           \
         echo '.balign STRUCT_ALIGNMENT';                \
-        echo '.global __dtb_$(*F)_begin';               \
-        echo '__dtb_$(*F)_begin:';                      \
+        echo '.global __dtb_$(subst -,_,$(*F))_begin';  \
+        echo '__dtb_$(subst -,_,$(*F))_begin:';         \
         echo '.incbin "$<" ';                           \
-        echo '__dtb_$(*F)_end:';                        \
-        echo '.global __dtb_$(*F)_end';                 \
+        echo '__dtb_$(subst -,_,$(*F))_end:';           \
+        echo '.global __dtb_$(subst -,_,$(*F))_end';    \
         echo '.balign STRUCT_ALIGNMENT';                \
 ) > $@
 
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index fa3d39b6f23b..449b68c4c90c 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -93,14 +93,6 @@
  * (Note: it'd be easy to port over the complete mkdep state machine,
  *  but I don't think the added complexity is worth it)
  */
-/*
- * Note 2: if somebody writes HELLO_CONFIG_BOOM in a file, it will depend onto
- * CONFIG_BOOM. This could seem a bug (not too hard to fix), but please do not
- * fix it! Some UserModeLinux files (look at arch/um/) call CONFIG_BOOM as
- * UML_CONFIG_BOOM, to avoid conflicts with /usr/include/linux/autoconf.h,
- * through arch/um/include/uml-config.h; this fixdep "bug" makes sure that
- * those files will have correct dependencies.
- */
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -233,8 +225,13 @@ static int str_ends_with(const char *s, int slen, const char *sub)
 static void parse_config_file(const char *p)
 {
         const char *q, *r;
+        const char *start = p;
 
         while ((p = strstr(p, "CONFIG_"))) {
+                if (p > start && (isalnum(p[-1]) || p[-1] == '_')) {
+                        p += 7;
+                        continue;
+                }
                 p += 7;
                 q = p;
                 while (*q && (isalnum(*q) || *q == '_'))
@@ -286,8 +283,6 @@ static int is_ignored_file(const char *s, int len)
 {
         return str_ends_with(s, len, "include/generated/autoconf.h") ||
                str_ends_with(s, len, "include/generated/autoksyms.h") ||
-               str_ends_with(s, len, "arch/um/include/uml-config.h") ||
-               str_ends_with(s, len, "include/linux/kconfig.h") ||
                str_ends_with(s, len, ".ver");
 }
 
diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
index 94b664817ad9..d84a5674e95e 100755
--- a/scripts/bloat-o-meter
+++ b/scripts/bloat-o-meter
@@ -15,7 +15,7 @@ signal(SIGPIPE, SIG_DFL)
 if len(sys.argv) < 3:
     sys.stderr.write("usage: %s [option] file1 file2\n" % sys.argv[0])
     sys.stderr.write("The options are:\n")
-    sys.stderr.write("-c        cateogrize output based on symbole type\n")
+    sys.stderr.write("-c        categorize output based on symbol type\n")
     sys.stderr.write("-d        Show delta of Data Section\n")
     sys.stderr.write("-t        Show delta of text Section\n")
     sys.exit(-1)
diff --git a/scripts/coccinelle/api/memdup.cocci b/scripts/coccinelle/api/memdup.cocci
index 1249b727644b..8fd6437beda8 100644
--- a/scripts/coccinelle/api/memdup.cocci
+++ b/scripts/coccinelle/api/memdup.cocci
@@ -56,10 +56,10 @@ statement S;
 p << r.p;
 @@
 
-coccilib.org.print_todo(p[0], "WARNING opportunity for kmemdep")
+coccilib.org.print_todo(p[0], "WARNING opportunity for kmemdup")
 
 @script:python depends on report@
 p << r.p;
 @@
 
-coccilib.report.print_report(p[0], "WARNING opportunity for kmemdep")
+coccilib.report.print_report(p[0], "WARNING opportunity for kmemdup")
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 9ee9bf7fd1a2..65792650c630 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -595,7 +595,7 @@ static void optimize_result(void)
                  * original char code */
                 if (!best_table_len[i]) {
 
-                        /* find the token with the breates profit value */
+                        /* find the token with the best profit value */
                         best = find_best_token();
                         if (token_profit[best] == 0)
                                 break;
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 5c12dc91ef34..df26c7b0fe13 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -178,7 +178,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
         case S_HEX:
         done:
                 if (sym_string_valid(sym, p)) {
-                        sym->def[def].val = strdup(p);
+                        sym->def[def].val = xstrdup(p);
                         sym->flags |= def_flags;
                 } else {
                         if (def != S_DEF_AUTO)
diff --git a/scripts/kconfig/kxgettext.c b/scripts/kconfig/kxgettext.c
index 2858738b22d5..240880a89111 100644
--- a/scripts/kconfig/kxgettext.c
+++ b/scripts/kconfig/kxgettext.c
@@ -101,7 +101,7 @@ static struct message *message__new(const char *msg, char *option,
         if (self->files == NULL)
                 goto out_fail;
 
-        self->msg = strdup(msg);
+        self->msg = xstrdup(msg);
         if (self->msg == NULL)
                 goto out_fail_msg;
 
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index 4e23febbe4b2..2d5ec2d0e952 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -115,6 +115,7 @@ int file_write_dep(const char *name);
 void *xmalloc(size_t size);
 void *xcalloc(size_t nmemb, size_t size);
 void *xrealloc(void *p, size_t size);
+char *xstrdup(const char *s);
 
 struct gstr {
         size_t len;
diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
index a10bd9d6fafd..6c0bcd9c472d 100755
--- a/scripts/kconfig/lxdialog/check-lxdialog.sh
+++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
@@ -55,7 +55,8 @@ EOF
             echo " *** required header files."                            1>&2
             echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2
             echo " *** "                                                  1>&2
-            echo " *** Install ncurses (ncurses-devel) and try again."    1>&2
+            echo " *** Install ncurses (ncurses-devel or libncurses-dev " 1>&2
+            echo " *** depending on your distribution) and try again."    1>&2
             echo " *** "                                                  1>&2
             exit 1
         fi
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 99222855544c..36cd3e1f1c28 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -212,6 +212,7 @@ void menu_add_option(int token, char *arg)
                         sym_defconfig_list = current_entry->sym;
                 else if (sym_defconfig_list != current_entry->sym)
                         zconf_error("trying to redefine defconfig symbol");
+                sym_defconfig_list->flags |= SYMBOL_AUTO;
                 break;
         case T_OPT_ENV:
                 prop_add_env(arg);
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index cca9663be5dd..2220bc4b051b 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -183,7 +183,7 @@ static void sym_validate_range(struct symbol *sym)
                 sprintf(str, "%lld", val2);
         else
                 sprintf(str, "0x%llx", val2);
-        sym->curr.val = strdup(str);
+        sym->curr.val = xstrdup(str);
 }
 
 static void sym_set_changed(struct symbol *sym)
@@ -849,7 +849,7 @@ struct symbol *sym_lookup(const char *name, int flags)
                                    : !(symbol->flags & (SYMBOL_CONST|SYMBOL_CHOICE))))
                                 return symbol;
                 }
-                new_name = strdup(name);
+                new_name = xstrdup(name);
         } else {
                 new_name = NULL;
                 hash = 0;
diff --git a/scripts/kconfig/util.c b/scripts/kconfig/util.c
index b98a79e30e04..c6f6e21b809f 100644
--- a/scripts/kconfig/util.c
+++ b/scripts/kconfig/util.c
@@ -154,3 +154,14 @@ void *xrealloc(void *p, size_t size)
         fprintf(stderr, "Out of memory.\n");
         exit(1);
 }
+
+char *xstrdup(const char *s)
+{
+        char *p;
+
+        p = strdup(s);
+        if (p)
+                return p;
+        fprintf(stderr, "Out of memory.\n");
+        exit(1);
+}
diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index 02de6fe302a9..88b650eb9cc9 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -332,16 +332,12 @@ void zconf_nextfile(const char *name)
                                 "Inclusion path:\n  current file : '%s'\n",
                                 zconf_curname(), zconf_lineno(),
                                 zconf_curname());
-                        iter = current_file->parent;
-                        while (iter && \
-                               strcmp(iter->name,current_file->name)) {
-                                fprintf(stderr, "  included from: '%s:%d'\n",
-                                        iter->name, iter->lineno-1);
+                        iter = current_file;
+                        do {
                                 iter = iter->parent;
-                        }
-                        if (iter)
                                 fprintf(stderr, "  included from: '%s:%d'\n",
-                                        iter->name, iter->lineno+1);
+                                        iter->name, iter->lineno - 1);
+                        } while (strcmp(iter->name, current_file->name));
                         exit(1);
                 }
         }
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 4be98050b961..ad6305b0f40c 100644
--- a/scripts/kconfig/zconf.y
+++ b/scripts/kconfig/zconf.y
@@ -127,7 +127,7 @@ no_mainmenu_stmt: /* empty */
          * later regardless of whether it comes from the 'prompt' in
          * mainmenu_stmt or here
          */
-        menu_add_prompt(P_MENU, strdup("Linux Kernel Configuration"), NULL);
+        menu_add_prompt(P_MENU, xstrdup("Linux Kernel Configuration"), NULL);
 };
 
 
@@ -276,6 +276,7 @@ choice: T_CHOICE word_opt T_EOL
         sym->flags |= SYMBOL_AUTO;
         menu_add_entry(sym);
         menu_add_expr(P_CHOICE, NULL, NULL);
+        free($2);
         printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
 };
 
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index c0d129d7f430..be56a1153014 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -246,7 +246,7 @@ else
 fi;
 
 # final build of init/
-${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init GCC_PLUGINS_CFLAGS="${GCC_PLUGINS_CFLAGS}"
+${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init
 
 archive_builtin
 
diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index 6f9e4ce568cd..9bb0a7f2863e 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -18,6 +18,7 @@
 #include <linux/cred.h>
 #include <linux/key-type.h>
 #include <linux/digsig.h>
+#include <linux/vmalloc.h>
 #include <crypto/public_key.h>
 #include <keys/system_keyring.h>
 
diff --git a/security/keys/big_key.c b/security/keys/big_key.c
index 929e14978c42..fa728f662a6f 100644
--- a/security/keys/big_key.c
+++ b/security/keys/big_key.c
@@ -22,6 +22,13 @@
 #include <keys/big_key-type.h>
 #include <crypto/aead.h>
 
+struct big_key_buf {
+        unsigned int            nr_pages;
+        void                    *virt;
+        struct scatterlist      *sg;
+        struct page             *pages[];
+};
+
 /*
  * Layout of key payload words.
  */
@@ -91,10 +98,9 @@ static DEFINE_MUTEX(big_key_aead_lock);
 /*
  * Encrypt/decrypt big_key data
  */
-static int big_key_crypt(enum big_key_op op, u8 *data, size_t datalen, u8 *key)
+static int big_key_crypt(enum big_key_op op, struct big_key_buf *buf, size_t datalen, u8 *key)
 {
         int ret;
-        struct scatterlist sgio;
         struct aead_request *aead_req;
         /* We always use a zero nonce. The reason we can get away with this is
          * because we're using a different randomly generated key for every
@@ -109,8 +115,7 @@ static int big_key_crypt(enum big_key_op op, u8 *data, size_t datalen, u8 *key)
                 return -ENOMEM;
 
         memset(zero_nonce, 0, sizeof(zero_nonce));
-        sg_init_one(&sgio, data, datalen + (op == BIG_KEY_ENC ? ENC_AUTHTAG_SIZE : 0));
-        aead_request_set_crypt(aead_req, &sgio, &sgio, datalen, zero_nonce);
+        aead_request_set_crypt(aead_req, buf->sg, buf->sg, datalen, zero_nonce);
         aead_request_set_callback(aead_req, CRYPTO_TFM_REQ_MAY_SLEEP, NULL, NULL);
         aead_request_set_ad(aead_req, 0);
 
@@ -130,21 +135,81 @@ error:
 }
 
 /*
+ * Free up the buffer.
+ */
+static void big_key_free_buffer(struct big_key_buf *buf)
+{
+        unsigned int i;
+
+        if (buf->virt) {
+                memset(buf->virt, 0, buf->nr_pages * PAGE_SIZE);
+                vunmap(buf->virt);
+        }
+
+        for (i = 0; i < buf->nr_pages; i++)
+                if (buf->pages[i])
+                        __free_page(buf->pages[i]);
+
+        kfree(buf);
+}
+
+/*
+ * Allocate a buffer consisting of a set of pages with a virtual mapping
+ * applied over them.
+ */
+static void *big_key_alloc_buffer(size_t len)
+{
+        struct big_key_buf *buf;
+        unsigned int npg = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
+        unsigned int i, l;
+
+        buf = kzalloc(sizeof(struct big_key_buf) +
+                      sizeof(struct page) * npg +
+                      sizeof(struct scatterlist) * npg,
+                      GFP_KERNEL);
+        if (!buf)
+                return NULL;
+
+        buf->nr_pages = npg;
+        buf->sg = (void *)(buf->pages + npg);
+        sg_init_table(buf->sg, npg);
+
+        for (i = 0; i < buf->nr_pages; i++) {
+                buf->pages[i] = alloc_page(GFP_KERNEL);
+                if (!buf->pages[i])
+                        goto nomem;
+
+                l = min_t(size_t, len, PAGE_SIZE);
+                sg_set_page(&buf->sg[i], buf->pages[i], l, 0);
+                len -= l;
+        }
+
+        buf->virt = vmap(buf->pages, buf->nr_pages, VM_MAP, PAGE_KERNEL);
+        if (!buf->virt)
+                goto nomem;
+
+        return buf;
+
+nomem:
+        big_key_free_buffer(buf);
+        return NULL;
+}
+
+/*
  * Preparse a big key
  */
 int big_key_preparse(struct key_preparsed_payload *prep)
 {
+        struct big_key_buf *buf;
         struct path *path = (struct path *)&prep->payload.data[big_key_path];
         struct file *file;
         u8 *enckey;
-        u8 *data = NULL;
         ssize_t written;
-        size_t datalen = prep->datalen;
+        size_t datalen = prep->datalen, enclen = datalen + ENC_AUTHTAG_SIZE;
         int ret;
 
-        ret = -EINVAL;
         if (datalen <= 0 || datalen > 1024 * 1024 || !prep->data)
-                goto error;
+                return -EINVAL;
 
         /* Set an arbitrary quota */
         prep->quotalen = 16;
@@ -157,13 +222,12 @@ int big_key_preparse(struct key_preparsed_payload *prep)
                  *
                  * File content is stored encrypted with randomly generated key.
                  */
-                size_t enclen = datalen + ENC_AUTHTAG_SIZE;
                 loff_t pos = 0;
 
-                data = kmalloc(enclen, GFP_KERNEL);
-                if (!data)
+                buf = big_key_alloc_buffer(enclen);
+                if (!buf)
                         return -ENOMEM;
-                memcpy(data, prep->data, datalen);
+                memcpy(buf->virt, prep->data, datalen);
 
                 /* generate random key */
                 enckey = kmalloc(ENC_KEY_SIZE, GFP_KERNEL);
@@ -176,7 +240,7 @@ int big_key_preparse(struct key_preparsed_payload *prep)
                         goto err_enckey;
 
                 /* encrypt aligned data */
-                ret = big_key_crypt(BIG_KEY_ENC, data, datalen, enckey);
+                ret = big_key_crypt(BIG_KEY_ENC, buf, datalen, enckey);
                 if (ret)
                         goto err_enckey;
 
@@ -187,7 +251,7 @@ int big_key_preparse(struct key_preparsed_payload *prep)
                         goto err_enckey;
                 }
 
-                written = kernel_write(file, data, enclen, &pos);
+                written = kernel_write(file, buf->virt, enclen, &pos);
                 if (written != enclen) {
                         ret = written;
                         if (written >= 0)
@@ -202,7 +266,7 @@ int big_key_preparse(struct key_preparsed_payload *prep)
                 *path = file->f_path;
                 path_get(path);
                 fput(file);
-                kzfree(data);
+                big_key_free_buffer(buf);
         } else {
                 /* Just store the data in a buffer */
                 void *data = kmalloc(datalen, GFP_KERNEL);
@@ -220,7 +284,7 @@ err_fput:
 err_enckey:
         kzfree(enckey);
 error:
-        kzfree(data);
+        big_key_free_buffer(buf);
         return ret;
 }
 
@@ -298,15 +362,15 @@ long big_key_read(const struct key *key, char __user *buffer, size_t buflen)
                 return datalen;
 
         if (datalen > BIG_KEY_FILE_THRESHOLD) {
+                struct big_key_buf *buf;
                 struct path *path = (struct path *)&key->payload.data[big_key_path];
                 struct file *file;
-                u8 *data;
                 u8 *enckey = (u8 *)key->payload.data[big_key_data];
                 size_t enclen = datalen + ENC_AUTHTAG_SIZE;
                 loff_t pos = 0;
 
-                data = kmalloc(enclen, GFP_KERNEL);
-                if (!data)
+                buf = big_key_alloc_buffer(enclen);
+                if (!buf)
                         return -ENOMEM;
 
                 file = dentry_open(path, O_RDONLY, current_cred());
@@ -316,26 +380,26 @@ long big_key_read(const struct key *key, char __user *buffer, size_t buflen)
                 }
 
                 /* read file to kernel and decrypt */
-                ret = kernel_read(file, data, enclen, &pos);
+                ret = kernel_read(file, buf->virt, enclen, &pos);
                 if (ret >= 0 && ret != enclen) {
                         ret = -EIO;
                         goto err_fput;
                 }
 
-                ret = big_key_crypt(BIG_KEY_DEC, data, enclen, enckey);
+                ret = big_key_crypt(BIG_KEY_DEC, buf, enclen, enckey);
                 if (ret)
                         goto err_fput;
 
                 ret = datalen;
 
                 /* copy decrypted data to user */
-                if (copy_to_user(buffer, data, datalen) != 0)
+                if (copy_to_user(buffer, buf->virt, datalen) != 0)
                         ret = -EFAULT;
 
 err_fput:
                 fput(file);
 error:
-                kzfree(data);
+                big_key_free_buffer(buf);
         } else {
                 ret = datalen;
                 if (copy_to_user(buffer, key->payload.data[big_key_data],
diff --git a/sound/ac97/Kconfig b/sound/ac97/Kconfig
index f8a64e15e5bf..baa5f8ef89d2 100644
--- a/sound/ac97/Kconfig
+++ b/sound/ac97/Kconfig
@@ -5,7 +5,6 @@
 
 config AC97_BUS_NEW
         tristate
-        select AC97
         help
           This is the new AC97 bus type, successor of AC97_BUS. The ported
           drivers which benefit from the AC97 automatic probing should "select"
diff --git a/sound/core/control.c b/sound/core/control.c
index 0b3026d937b1..8a77620a3854 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -889,7 +889,7 @@ static int snd_ctl_elem_read(struct snd_card *card,
 
         index_offset = snd_ctl_get_ioff(kctl, &control->id);
         vd = &kctl->vd[index_offset];
-        if (!(vd->access & SNDRV_CTL_ELEM_ACCESS_READ) && kctl->get == NULL)
+        if (!(vd->access & SNDRV_CTL_ELEM_ACCESS_READ) || kctl->get == NULL)
                 return -EPERM;
 
         snd_ctl_build_ioff(&control->id, kctl, index_offset);
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index b044c0a5a674..02298c9c6020 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -1762,10 +1762,9 @@ static int snd_pcm_oss_get_formats(struct snd_pcm_oss_file *pcm_oss_file)
                 return -ENOMEM;
         _snd_pcm_hw_params_any(params);
         err = snd_pcm_hw_refine(substream, params);
-        format_mask = hw_param_mask_c(params, SNDRV_PCM_HW_PARAM_FORMAT);
-        kfree(params);
         if (err < 0)
-                return err;
+                goto error;
+        format_mask = hw_param_mask_c(params, SNDRV_PCM_HW_PARAM_FORMAT);
         for (fmt = 0; fmt < 32; ++fmt) {
                 if (snd_mask_test(format_mask, fmt)) {
                         int f = snd_pcm_oss_format_to(fmt);
@@ -1773,7 +1772,10 @@ static int snd_pcm_oss_get_formats(struct snd_pcm_oss_file *pcm_oss_file)
                                 formats |= f;
                 }
         }
-        return formats;
+
+ error:
+        kfree(params);
+        return err < 0 ? err : formats;
 }
 
 static int snd_pcm_oss_set_format(struct snd_pcm_oss_file *pcm_oss_file, int format)
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index 60db32785f62..61a07fe34cd2 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -255,12 +255,12 @@ static int seq_free_client1(struct snd_seq_client *client)
 
         if (!client)
                 return 0;
-        snd_seq_delete_all_ports(client);
-        snd_seq_queue_client_leave(client->number);
         spin_lock_irqsave(&clients_lock, flags);
         clienttablock[client->number] = 1;
         clienttab[client->number] = NULL;
         spin_unlock_irqrestore(&clients_lock, flags);
+        snd_seq_delete_all_ports(client);
+        snd_seq_queue_client_leave(client->number);
         snd_use_lock_sync(&client->use_lock);
         snd_seq_queue_client_termination(client->number);
         if (client->pool)
@@ -910,7 +910,8 @@ int snd_seq_dispatch_event(struct snd_seq_event_cell *cell, int atomic, int hop)
 static int snd_seq_client_enqueue_event(struct snd_seq_client *client,
                                         struct snd_seq_event *event,
                                         struct file *file, int blocking,
-                                        int atomic, int hop)
+                                        int atomic, int hop,
+                                        struct mutex *mutexp)
 {
         struct snd_seq_event_cell *cell;
         int err;
@@ -948,7 +949,8 @@ static int snd_seq_client_enqueue_event(struct snd_seq_client *client,
                 return -ENXIO; /* queue is not allocated */
 
         /* allocate an event cell */
-        err = snd_seq_event_dup(client->pool, event, &cell, !blocking || atomic, file);
+        err = snd_seq_event_dup(client->pool, event, &cell, !blocking || atomic,
+                                file, mutexp);
         if (err < 0)
                 return err;
 
@@ -1003,7 +1005,7 @@ static ssize_t snd_seq_write(struct file *file, const char __user *buf,
 {
         struct snd_seq_client *client = file->private_data;
         int written = 0, len;
-        int err = -EINVAL;
+        int err;
         struct snd_seq_event event;
 
         if (!(snd_seq_file_flags(file) & SNDRV_SEQ_LFLG_OUTPUT))
@@ -1017,12 +1019,15 @@ static ssize_t snd_seq_write(struct file *file, const char __user *buf,
                 return -ENXIO;
 
         /* allocate the pool now if the pool is not allocated yet */ 
+        mutex_lock(&client->ioctl_mutex);
         if (client->pool->size > 0 && !snd_seq_write_pool_allocated(client)) {
-                if (snd_seq_pool_init(client->pool) < 0)
-                        return -ENOMEM;
+                err = snd_seq_pool_init(client->pool);
+                if (err < 0)
+                        goto out;
         }
 
         /* only process whole events */
+        err = -EINVAL;
         while (count >= sizeof(struct snd_seq_event)) {
                 /* Read in the event header from the user */
                 len = sizeof(event);
@@ -1069,7 +1074,7 @@ static ssize_t snd_seq_write(struct file *file, const char __user *buf,
                 /* ok, enqueue it */
                 err = snd_seq_client_enqueue_event(client, &event, file,
                                                    !(file->f_flags & O_NONBLOCK),
-                                                   0, 0);
+                                                   0, 0, &client->ioctl_mutex);
                 if (err < 0)
                         break;
 
@@ -1080,6 +1085,8 @@ static ssize_t snd_seq_write(struct file *file, const char __user *buf,
                 written += len;
         }
 
+ out:
+        mutex_unlock(&client->ioctl_mutex);
         return written ? written : err;
 }
 
@@ -1834,9 +1841,11 @@ static int snd_seq_ioctl_set_client_pool(struct snd_seq_client *client,
             (! snd_seq_write_pool_allocated(client) ||
              info->output_pool != client->pool->size)) {
                 if (snd_seq_write_pool_allocated(client)) {
+                        /* is the pool in use? */
+                        if (atomic_read(&client->pool->counter))
+                                return -EBUSY;
                         /* remove all existing cells */
                         snd_seq_pool_mark_closing(client->pool);
-                        snd_seq_queue_client_leave_cells(client->number);
                         snd_seq_pool_done(client->pool);
                 }
                 client->pool->size = info->output_pool;
@@ -2256,7 +2265,8 @@ static int kernel_client_enqueue(int client, struct snd_seq_event *ev,
         if (! cptr->accept_output)
                 result = -EPERM;
         else /* send it */
-                result = snd_seq_client_enqueue_event(cptr, ev, file, blocking, atomic, hop);
+                result = snd_seq_client_enqueue_event(cptr, ev, file, blocking,
+                                                      atomic, hop, NULL);
 
         snd_seq_client_unlock(cptr);
         return result;
diff --git a/sound/core/seq/seq_fifo.c b/sound/core/seq/seq_fifo.c
index a8c2822e0198..72c0302a55d2 100644
--- a/sound/core/seq/seq_fifo.c
+++ b/sound/core/seq/seq_fifo.c
@@ -125,7 +125,7 @@ int snd_seq_fifo_event_in(struct snd_seq_fifo *f,
                 return -EINVAL;
 
         snd_use_lock_use(&f->use_lock);
-        err = snd_seq_event_dup(f->pool, event, &cell, 1, NULL); /* always non-blocking */
+        err = snd_seq_event_dup(f->pool, event, &cell, 1, NULL, NULL); /* always non-blocking */
         if (err < 0) {
                 if ((err == -ENOMEM) || (err == -EAGAIN))
                         atomic_inc(&f->overflow);
diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c
index f763682584a8..ab1112e90f88 100644
--- a/sound/core/seq/seq_memory.c
+++ b/sound/core/seq/seq_memory.c
@@ -220,7 +220,8 @@ void snd_seq_cell_free(struct snd_seq_event_cell * cell)
  */
 static int snd_seq_cell_alloc(struct snd_seq_pool *pool,
                               struct snd_seq_event_cell **cellp,
-                              int nonblock, struct file *file)
+                              int nonblock, struct file *file,
+                              struct mutex *mutexp)
 {
         struct snd_seq_event_cell *cell;
         unsigned long flags;
@@ -244,7 +245,11 @@ static int snd_seq_cell_alloc(struct snd_seq_pool *pool,
                 set_current_state(TASK_INTERRUPTIBLE);
                 add_wait_queue(&pool->output_sleep, &wait);
                 spin_unlock_irq(&pool->lock);
+                if (mutexp)
+                        mutex_unlock(mutexp);
                 schedule();
+                if (mutexp)
+                        mutex_lock(mutexp);
                 spin_lock_irq(&pool->lock);
                 remove_wait_queue(&pool->output_sleep, &wait);
                 /* interrupted? */
@@ -287,7 +292,7 @@ __error:
  */
 int snd_seq_event_dup(struct snd_seq_pool *pool, struct snd_seq_event *event,
                       struct snd_seq_event_cell **cellp, int nonblock,
-                      struct file *file)
+                      struct file *file, struct mutex *mutexp)
 {
         int ncells, err;
         unsigned int extlen;
@@ -304,7 +309,7 @@ int snd_seq_event_dup(struct snd_seq_pool *pool, struct snd_seq_event *event,
         if (ncells >= pool->total_elements)
                 return -ENOMEM;
 
-        err = snd_seq_cell_alloc(pool, &cell, nonblock, file);
+        err = snd_seq_cell_alloc(pool, &cell, nonblock, file, mutexp);
         if (err < 0)
                 return err;
 
@@ -330,7 +335,8 @@ int snd_seq_event_dup(struct snd_seq_pool *pool, struct snd_seq_event *event,
                         int size = sizeof(struct snd_seq_event);
                         if (len < size)
                                 size = len;
-                        err = snd_seq_cell_alloc(pool, &tmp, nonblock, file);
+                        err = snd_seq_cell_alloc(pool, &tmp, nonblock, file,
+                                                 mutexp);
                         if (err < 0)
                                 goto __error;
                         if (cell->event.data.ext.ptr == NULL)
diff --git a/sound/core/seq/seq_memory.h b/sound/core/seq/seq_memory.h
index 32f959c17786..3abe306c394a 100644
--- a/sound/core/seq/seq_memory.h
+++ b/sound/core/seq/seq_memory.h
@@ -66,7 +66,8 @@ struct snd_seq_pool {
 void snd_seq_cell_free(struct snd_seq_event_cell *cell);
 
 int snd_seq_event_dup(struct snd_seq_pool *pool, struct snd_seq_event *event,
-                      struct snd_seq_event_cell **cellp, int nonblock, struct file *file);
+                      struct snd_seq_event_cell **cellp, int nonblock,
+                      struct file *file, struct mutex *mutexp);
 
 /* return number of unused (free) cells */
 static inline int snd_seq_unused_cells(struct snd_seq_pool *pool)
diff --git a/sound/core/seq/seq_prioq.c b/sound/core/seq/seq_prioq.c
index bc1c8488fc2a..2bc6759e4adc 100644
--- a/sound/core/seq/seq_prioq.c
+++ b/sound/core/seq/seq_prioq.c
@@ -87,7 +87,7 @@ void snd_seq_prioq_delete(struct snd_seq_prioq **fifo)
         if (f->cells > 0) {
                 /* drain prioQ */
                 while (f->cells > 0)
-                        snd_seq_cell_free(snd_seq_prioq_cell_out(f));
+                        snd_seq_cell_free(snd_seq_prioq_cell_out(f, NULL));
         }
         
         kfree(f);
@@ -214,8 +214,18 @@ int snd_seq_prioq_cell_in(struct snd_seq_prioq * f,
         return 0;
 }
 
+/* return 1 if the current time >= event timestamp */
+static int event_is_ready(struct snd_seq_event *ev, void *current_time)
+{
+        if ((ev->flags & SNDRV_SEQ_TIME_STAMP_MASK) == SNDRV_SEQ_TIME_STAMP_TICK)
+                return snd_seq_compare_tick_time(current_time, &ev->time.tick);
+        else
+                return snd_seq_compare_real_time(current_time, &ev->time.time);
+}
+
 /* dequeue cell from prioq */
-struct snd_seq_event_cell *snd_seq_prioq_cell_out(struct snd_seq_prioq *f)
+struct snd_seq_event_cell *snd_seq_prioq_cell_out(struct snd_seq_prioq *f,
+                                                  void *current_time)
 {
         struct snd_seq_event_cell *cell;
         unsigned long flags;
@@ -227,6 +237,8 @@ struct snd_seq_event_cell *snd_seq_prioq_cell_out(struct snd_seq_prioq *f)
         spin_lock_irqsave(&f->lock, flags);
 
         cell = f->head;
+        if (cell && current_time && !event_is_ready(&cell->event, current_time))
+                cell = NULL;
         if (cell) {
                 f->head = cell->next;
 
@@ -252,18 +264,6 @@ int snd_seq_prioq_avail(struct snd_seq_prioq * f)
         return f->cells;
 }
 
-
-/* peek at cell at the head of the prioq */
-struct snd_seq_event_cell *snd_seq_prioq_cell_peek(struct snd_seq_prioq * f)
-{
-        if (f == NULL) {
-                pr_debug("ALSA: seq: snd_seq_prioq_cell_in() called with NULL prioq\n");
-                return NULL;
-        }
-        return f->head;
-}
-
-
 static inline int prioq_match(struct snd_seq_event_cell *cell,
                               int client, int timestamp)
 {
diff --git a/sound/core/seq/seq_prioq.h b/sound/core/seq/seq_prioq.h
index d38bb78d9345..2c315ca10fc4 100644
--- a/sound/core/seq/seq_prioq.h
+++ b/sound/core/seq/seq_prioq.h
@@ -44,14 +44,12 @@ void snd_seq_prioq_delete(struct snd_seq_prioq **fifo);
 int snd_seq_prioq_cell_in(struct snd_seq_prioq *f, struct snd_seq_event_cell *cell);
 
 /* dequeue cell from prioq */ 
-struct snd_seq_event_cell *snd_seq_prioq_cell_out(struct snd_seq_prioq *f);
+struct snd_seq_event_cell *snd_seq_prioq_cell_out(struct snd_seq_prioq *f,
+                                                  void *current_time);
 
 /* return number of events available in prioq */
 int snd_seq_prioq_avail(struct snd_seq_prioq *f);
 
-/* peek at cell at the head of the prioq */
-struct snd_seq_event_cell *snd_seq_prioq_cell_peek(struct snd_seq_prioq *f);
-
 /* client left queue */
 void snd_seq_prioq_leave(struct snd_seq_prioq *f, int client, int timestamp);        
 
diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
index 0428e9061b47..b377f5048352 100644
--- a/sound/core/seq/seq_queue.c
+++ b/sound/core/seq/seq_queue.c
@@ -277,30 +277,20 @@ void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop)
 
       __again:
         /* Process tick queue... */
-        while ((cell = snd_seq_prioq_cell_peek(q->tickq)) != NULL) {
-                if (snd_seq_compare_tick_time(&q->timer->tick.cur_tick,
-                                              &cell->event.time.tick)) {
-                        cell = snd_seq_prioq_cell_out(q->tickq);
-                        if (cell)
-                                snd_seq_dispatch_event(cell, atomic, hop);
-                } else {
-                        /* event remains in the queue */
+        for (;;) {
+                cell = snd_seq_prioq_cell_out(q->tickq,
+                                              &q->timer->tick.cur_tick);
+                if (!cell)
                         break;
-                }
+                snd_seq_dispatch_event(cell, atomic, hop);
         }
 
-
         /* Process time queue... */
-        while ((cell = snd_seq_prioq_cell_peek(q->timeq)) != NULL) {
-                if (snd_seq_compare_real_time(&q->timer->cur_time,
-                                              &cell->event.time.time)) {
-                        cell = snd_seq_prioq_cell_out(q->timeq);
-                        if (cell)
-                                snd_seq_dispatch_event(cell, atomic, hop);
-                } else {
-                        /* event remains in the queue */
+        for (;;) {
+                cell = snd_seq_prioq_cell_out(q->timeq, &q->timer->cur_time);
+                if (!cell)
                         break;
-                }
+                snd_seq_dispatch_event(cell, atomic, hop);
         }
 
         /* free lock */
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 0333143a1fa7..1063a4377502 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -192,6 +192,11 @@ static inline void loopback_timer_stop(struct loopback_pcm *dpcm)
         dpcm->timer.expires = 0;
 }
 
+static inline void loopback_timer_stop_sync(struct loopback_pcm *dpcm)
+{
+        del_timer_sync(&dpcm->timer);
+}
+
 #define CABLE_VALID_PLAYBACK    (1 << SNDRV_PCM_STREAM_PLAYBACK)
 #define CABLE_VALID_CAPTURE     (1 << SNDRV_PCM_STREAM_CAPTURE)
 #define CABLE_VALID_BOTH        (CABLE_VALID_PLAYBACK|CABLE_VALID_CAPTURE)
@@ -326,6 +331,8 @@ static int loopback_prepare(struct snd_pcm_substream *substream)
         struct loopback_cable *cable = dpcm->cable;
         int bps, salign;
 
+        loopback_timer_stop_sync(dpcm);
+
         salign = (snd_pcm_format_width(runtime->format) *
                                                 runtime->channels) / 8;
         bps = salign * runtime->rate;
@@ -659,7 +666,9 @@ static void free_cable(struct snd_pcm_substream *substream)
                 return;
         if (cable->streams[!substream->stream]) {
                 /* other stream is still alive */
+                spin_lock_irq(&cable->lock);
                 cable->streams[substream->stream] = NULL;
+                spin_unlock_irq(&cable->lock);
         } else {
                 /* free the cable */
                 loopback->cables[substream->number][dev] = NULL;
@@ -698,7 +707,6 @@ static int loopback_open(struct snd_pcm_substream *substream)
                 loopback->cables[substream->number][dev] = cable;
         }
         dpcm->cable = cable;
-        cable->streams[substream->stream] = dpcm;
 
         snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
 
@@ -730,6 +738,11 @@ static int loopback_open(struct snd_pcm_substream *substream)
                 runtime->hw = loopback_pcm_hardware;
         else
                 runtime->hw = cable->hw;
+
+        spin_lock_irq(&cable->lock);
+        cable->streams[substream->stream] = dpcm;
+        spin_unlock_irq(&cable->lock);
+
  unlock:
         if (err < 0) {
                 free_cable(substream);
@@ -744,7 +757,7 @@ static int loopback_close(struct snd_pcm_substream *substream)
         struct loopback *loopback = substream->private_data;
         struct loopback_pcm *dpcm = substream->runtime->private_data;
 
-        loopback_timer_stop(dpcm);
+        loopback_timer_stop_sync(dpcm);
         mutex_lock(&loopback->cable_lock);
         free_cable(substream);
         mutex_unlock(&loopback->cable_lock);
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index ec4e6b829ee2..e2f649fffd56 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -186,6 +186,10 @@ module_param(power_save, xint, 0644);
 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
                  "(in second, 0 = disable).");
 
+static bool pm_blacklist = true;
+module_param(pm_blacklist, bool, 0644);
+MODULE_PARM_DESC(pm_blacklist, "Enable power-management blacklist");
+
 /* reset the HD-audio controller in power save mode.
  * this may give more power-saving, but will take longer time to
  * wake up.
@@ -371,6 +375,7 @@ enum {
                                         ((pci)->device == 0x160c))
 
 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
+#define IS_CFL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa348)
 
 static char *driver_short_names[] = {
         [AZX_DRIVER_ICH] = "HDA Intel",
@@ -1744,6 +1749,10 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci,
         else
                 chip->bdl_pos_adj = bdl_pos_adj[dev];
 
+        /* Workaround for a communication error on CFL (bko#199007) */
+        if (IS_CFL(pci))
+                chip->polling_mode = 1;
+
         err = azx_bus_init(chip, model[dev], &pci_hda_io_ops);
         if (err < 0) {
                 kfree(hda);
@@ -2190,6 +2199,24 @@ out_free:
         return err;
 }
 
+#ifdef CONFIG_PM
+/* On some boards setting power_save to a non 0 value leads to clicking /
+ * popping sounds when ever we enter/leave powersaving mode. Ideally we would
+ * figure out how to avoid these sounds, but that is not always feasible.
+ * So we keep a list of devices where we disable powersaving as its known
+ * to causes problems on these devices.
+ */
+static struct snd_pci_quirk power_save_blacklist[] = {
+        /* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
+        SND_PCI_QUIRK(0x1849, 0x0c0c, "Asrock B85M-ITX", 0),
+        /* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
+        SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
+        /* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
+        SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
+        {}
+};
+#endif /* CONFIG_PM */
+
 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
         [AZX_DRIVER_NVIDIA] = 8,
@@ -2203,6 +2230,7 @@ static int azx_probe_continue(struct azx *chip)
         struct pci_dev *pci = chip->pci;
         struct hda_codec *codec;
         int dev = chip->dev_index;
+        int val;
         int err;
 
         hda->probe_continued = 1;
@@ -2284,6 +2312,19 @@ static int azx_probe_continue(struct azx *chip)
         chip->running = 1;
         azx_add_card_list(chip);
 
+        val = power_save;
+#ifdef CONFIG_PM
+        if (pm_blacklist) {
+                const struct snd_pci_quirk *q;
+
+                q = snd_pci_quirk_lookup(chip->pci, power_save_blacklist);
+                if (q && val) {
+                        dev_info(chip->card->dev, "device %04x:%04x is on the power_save blacklist, forcing power_save to 0\n",
+                                 q->subvendor, q->subdevice);
+                        val = 0;
+                }
+        }
+#endif /* CONFIG_PM */
         /*
          * The discrete GPU cannot power down unless the HDA controller runtime
          * suspends, so activate runtime PM on codecs even if power_save == 0.
@@ -2292,7 +2333,7 @@ static int azx_probe_continue(struct azx *chip)
                 list_for_each_codec(codec, &chip->bus)
                         codec->auto_runtime_pm = 1;
 
-        snd_hda_set_power_save(&chip->bus, power_save * 1000);
+        snd_hda_set_power_save(&chip->bus, val * 1000);
         if (azx_has_pm_runtime(chip))
                 pm_runtime_put_autosuspend(&pci->dev);
 
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 37e1cf8218ff..5b4dbcec6de8 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -957,6 +957,8 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
         SND_PCI_QUIRK(0x1025, 0x054c, "Acer Aspire 3830TG", CXT_FIXUP_ASPIRE_DMIC),
         SND_PCI_QUIRK(0x1025, 0x054f, "Acer Aspire 4830T", CXT_FIXUP_ASPIRE_DMIC),
         SND_PCI_QUIRK(0x103c, 0x8079, "HP EliteBook 840 G3", CXT_FIXUP_HP_DOCK),
+        SND_PCI_QUIRK(0x103c, 0x807C, "HP EliteBook 820 G3", CXT_FIXUP_HP_DOCK),
+        SND_PCI_QUIRK(0x103c, 0x80FD, "HP ProBook 640 G2", CXT_FIXUP_HP_DOCK),
         SND_PCI_QUIRK(0x103c, 0x8174, "HP Spectre x360", CXT_FIXUP_HP_SPECTRE),
         SND_PCI_QUIRK(0x103c, 0x8115, "HP Z1 Gen3", CXT_FIXUP_HP_GATE_MIC),
         SND_PCI_QUIRK(0x103c, 0x814f, "HP ZBook 15u G3", CXT_FIXUP_MUTE_LED_GPIO),
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 23475888192b..aef1f52db7d9 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3130,6 +3130,8 @@ static void alc256_init(struct hda_codec *codec)
 
         alc_update_coef_idx(codec, 0x46, 3 << 12, 0);
         alc_update_coefex_idx(codec, 0x57, 0x04, 0x0007, 0x4); /* Hight power */
+        alc_update_coefex_idx(codec, 0x53, 0x02, 0x8000, 1 << 15); /* Clear bit */
+        alc_update_coefex_idx(codec, 0x53, 0x02, 0x8000, 0 << 15);
 }
 
 static void alc256_shutup(struct hda_codec *codec)
@@ -3465,6 +3467,19 @@ static void alc269_fixup_pincfg_no_hp_to_lineout(struct hda_codec *codec,
                 spec->parse_flags = HDA_PINCFG_NO_HP_FIXUP;
 }
 
+static void alc269_fixup_pincfg_U7x7_headset_mic(struct hda_codec *codec,
+                                                 const struct hda_fixup *fix,
+                                                 int action)
+{
+        unsigned int cfg_headphone = snd_hda_codec_get_pincfg(codec, 0x21);
+        unsigned int cfg_headset_mic = snd_hda_codec_get_pincfg(codec, 0x19);
+
+        if (cfg_headphone && cfg_headset_mic == 0x411111f0)
+                snd_hda_codec_set_pincfg(codec, 0x19,
+                        (cfg_headphone & ~AC_DEFCFG_DEVICE) |
+                        (AC_JACK_MIC_IN << AC_DEFCFG_DEVICE_SHIFT));
+}
+
 static void alc269_fixup_hweq(struct hda_codec *codec,
                                const struct hda_fixup *fix, int action)
 {
@@ -3583,8 +3598,12 @@ static void alc269_fixup_mic_mute_hook(void *private_data, int enabled)
         pinval = snd_hda_codec_get_pin_target(codec, spec->mute_led_nid);
         pinval &= ~AC_PINCTL_VREFEN;
         pinval |= enabled ? AC_PINCTL_VREF_HIZ : AC_PINCTL_VREF_80;
-        if (spec->mute_led_nid)
+        if (spec->mute_led_nid) {
+                /* temporarily power up/down for setting VREF */
+                snd_hda_power_up_pm(codec);
                 snd_hda_set_pin_ctl_cache(codec, spec->mute_led_nid, pinval);
+                snd_hda_power_down_pm(codec);
+        }
 }
 
 /* Make sure the led works even in runtime suspend */
@@ -4972,6 +4991,29 @@ static void alc_fixup_tpt440_dock(struct hda_codec *codec,
         }
 }
 
+static void alc_fixup_tpt470_dock(struct hda_codec *codec,
+                                  const struct hda_fixup *fix, int action)
+{
+        static const struct hda_pintbl pincfgs[] = {
+                { 0x17, 0x21211010 }, /* dock headphone */
+                { 0x19, 0x21a11010 }, /* dock mic */
+                { }
+        };
+        struct alc_spec *spec = codec->spec;
+
+        if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+                spec->parse_flags = HDA_PINCFG_NO_HP_FIXUP;
+                snd_hda_apply_pincfgs(codec, pincfgs);
+        } else if (action == HDA_FIXUP_ACT_INIT) {
+                /* Enable DOCK device */
+                snd_hda_codec_write(codec, 0x17, 0,
+                            AC_VERB_SET_CONFIG_DEFAULT_BYTES_3, 0);
+                /* Enable DOCK device */
+                snd_hda_codec_write(codec, 0x19, 0,
+                            AC_VERB_SET_CONFIG_DEFAULT_BYTES_3, 0);
+        }
+}
+
 static void alc_shutup_dell_xps13(struct hda_codec *codec)
 {
         struct alc_spec *spec = codec->spec;
@@ -5238,6 +5280,16 @@ static void alc298_fixup_speaker_volume(struct hda_codec *codec,
         }
 }
 
+/* disable DAC3 (0x06) selection on NID 0x17 as it has no volume amp control */
+static void alc295_fixup_disable_dac3(struct hda_codec *codec,
+                                      const struct hda_fixup *fix, int action)
+{
+        if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+                hda_nid_t conn[2] = { 0x02, 0x03 };
+                snd_hda_override_conn_list(codec, 0x17, 2, conn);
+        }
+}
+
 /* Hook to update amp GPIO4 for automute */
 static void alc280_hp_gpio4_automute_hook(struct hda_codec *codec,
                                           struct hda_jack_callback *jack)
@@ -5351,6 +5403,7 @@ enum {
         ALC269_FIXUP_LIFEBOOK_EXTMIC,
         ALC269_FIXUP_LIFEBOOK_HP_PIN,
         ALC269_FIXUP_LIFEBOOK_NO_HP_TO_LINEOUT,
+        ALC255_FIXUP_LIFEBOOK_U7x7_HEADSET_MIC,
         ALC269_FIXUP_AMIC,
         ALC269_FIXUP_DMIC,
         ALC269VB_FIXUP_AMIC,
@@ -5429,6 +5482,7 @@ enum {
         ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY,
         ALC255_FIXUP_DELL_SPK_NOISE,
         ALC225_FIXUP_DELL1_MIC_NO_PRESENCE,
+        ALC295_FIXUP_DISABLE_DAC3,
         ALC280_FIXUP_HP_HEADSET_MIC,
         ALC221_FIXUP_HP_FRONT_MIC,
         ALC292_FIXUP_TPT460,
@@ -5443,9 +5497,13 @@ enum {
         ALC233_FIXUP_EAPD_COEF_AND_MIC_NO_PRESENCE,
         ALC233_FIXUP_LENOVO_MULTI_CODECS,
         ALC294_FIXUP_LENOVO_MIC_LOCATION,
+        ALC225_FIXUP_DELL_WYSE_MIC_NO_PRESENCE,
         ALC700_FIXUP_INTEL_REFERENCE,
         ALC274_FIXUP_DELL_BIND_DACS,
         ALC274_FIXUP_DELL_AIO_LINEOUT_VERB,
+        ALC298_FIXUP_TPT470_DOCK,
+        ALC255_FIXUP_DUMMY_LINEOUT_VERB,
+        ALC255_FIXUP_DELL_HEADSET_MIC,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -5556,6 +5614,10 @@ static const struct hda_fixup alc269_fixups[] = {
                 .type = HDA_FIXUP_FUNC,
                 .v.func = alc269_fixup_pincfg_no_hp_to_lineout,
         },
+        [ALC255_FIXUP_LIFEBOOK_U7x7_HEADSET_MIC] = {
+                .type = HDA_FIXUP_FUNC,
+                .v.func = alc269_fixup_pincfg_U7x7_headset_mic,
+        },
         [ALC269_FIXUP_AMIC] = {
                 .type = HDA_FIXUP_PINS,
                 .v.pins = (const struct hda_pintbl[]) {
@@ -6156,6 +6218,10 @@ static const struct hda_fixup alc269_fixups[] = {
                 .chained = true,
                 .chain_id = ALC298_FIXUP_DELL_AIO_MIC_NO_PRESENCE,
         },
+        [ALC295_FIXUP_DISABLE_DAC3] = {
+                .type = HDA_FIXUP_FUNC,
+                .v.func = alc295_fixup_disable_dac3,
+        },
         [ALC256_FIXUP_DELL_INSPIRON_7559_SUBWOOFER] = {
                 .type = HDA_FIXUP_PINS,
                 .v.pins = (const struct hda_pintbl[]) {
@@ -6241,6 +6307,18 @@ static const struct hda_fixup alc269_fixups[] = {
                         { }
                 },
         },
+        [ALC225_FIXUP_DELL_WYSE_MIC_NO_PRESENCE] = {
+                .type = HDA_FIXUP_PINS,
+                .v.pins = (const struct hda_pintbl[]) {
+                        { 0x16, 0x0101102f }, /* Rear Headset HP */
+                        { 0x19, 0x02a1913c }, /* use as Front headset mic, without its own jack detect */
+                        { 0x1a, 0x01a19030 }, /* Rear Headset MIC */
+                        { 0x1b, 0x02011020 },
+                        { }
+                },
+                .chained = true,
+                .chain_id = ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC
+        },
         [ALC700_FIXUP_INTEL_REFERENCE] = {
                 .type = HDA_FIXUP_VERBS,
                 .v.verbs = (const struct hda_verb[]) {
@@ -6271,6 +6349,28 @@ static const struct hda_fixup alc269_fixups[] = {
                 .chained = true,
                 .chain_id = ALC274_FIXUP_DELL_BIND_DACS
         },
+        [ALC298_FIXUP_TPT470_DOCK] = {
+                .type = HDA_FIXUP_FUNC,
+                .v.func = alc_fixup_tpt470_dock,
+                .chained = true,
+                .chain_id = ALC293_FIXUP_LENOVO_SPK_NOISE
+        },
+        [ALC255_FIXUP_DUMMY_LINEOUT_VERB] = {
+                .type = HDA_FIXUP_PINS,
+                .v.pins = (const struct hda_pintbl[]) {
+                        { 0x14, 0x0201101f },
+                        { }
+                },
+                .chained = true,
+                .chain_id = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE
+        },
+        [ALC255_FIXUP_DELL_HEADSET_MIC] = {
+                .type = HDA_FIXUP_PINS,
+                .v.pins = (const struct hda_pintbl[]) {
+                        { 0x19, 0x01a1913c }, /* use as headset mic, without its own jack detect */
+                        { }
+                },
+        },
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -6319,8 +6419,15 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
         SND_PCI_QUIRK(0x1028, 0x0725, "Dell Inspiron 3162", ALC255_FIXUP_DELL_SPK_NOISE),
         SND_PCI_QUIRK(0x1028, 0x075b, "Dell XPS 13 9360", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE),
         SND_PCI_QUIRK(0x1028, 0x075d, "Dell AIO", ALC298_FIXUP_SPK_VOLUME),
+        SND_PCI_QUIRK(0x1028, 0x07b0, "Dell Precision 7520", ALC295_FIXUP_DISABLE_DAC3),
         SND_PCI_QUIRK(0x1028, 0x0798, "Dell Inspiron 17 7000 Gaming", ALC256_FIXUP_DELL_INSPIRON_7559_SUBWOOFER),
+        SND_PCI_QUIRK(0x1028, 0x080c, "Dell WYSE", ALC225_FIXUP_DELL_WYSE_MIC_NO_PRESENCE),
         SND_PCI_QUIRK(0x1028, 0x082a, "Dell XPS 13 9360", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE),
+        SND_PCI_QUIRK(0x1028, 0x084b, "Dell", ALC274_FIXUP_DELL_AIO_LINEOUT_VERB),
+        SND_PCI_QUIRK(0x1028, 0x084e, "Dell", ALC274_FIXUP_DELL_AIO_LINEOUT_VERB),
+        SND_PCI_QUIRK(0x1028, 0x0871, "Dell Precision 3630", ALC255_FIXUP_DELL_HEADSET_MIC),
+        SND_PCI_QUIRK(0x1028, 0x0872, "Dell Precision 3630", ALC255_FIXUP_DELL_HEADSET_MIC),
+        SND_PCI_QUIRK(0x1028, 0x0873, "Dell Precision 3930", ALC255_FIXUP_DUMMY_LINEOUT_VERB),
         SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
         SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
         SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
@@ -6422,6 +6529,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
         SND_PCI_QUIRK(0x10cf, 0x159f, "Lifebook E780", ALC269_FIXUP_LIFEBOOK_NO_HP_TO_LINEOUT),
         SND_PCI_QUIRK(0x10cf, 0x15dc, "Lifebook T731", ALC269_FIXUP_LIFEBOOK_HP_PIN),
         SND_PCI_QUIRK(0x10cf, 0x1757, "Lifebook E752", ALC269_FIXUP_LIFEBOOK_HP_PIN),
+        SND_PCI_QUIRK(0x10cf, 0x1629, "Lifebook U7x7", ALC255_FIXUP_LIFEBOOK_U7x7_HEADSET_MIC),
         SND_PCI_QUIRK(0x10cf, 0x1845, "Lifebook U904", ALC269_FIXUP_LIFEBOOK_EXTMIC),
         SND_PCI_QUIRK(0x10ec, 0x10f2, "Intel Reference board", ALC700_FIXUP_INTEL_REFERENCE),
         SND_PCI_QUIRK(0x144d, 0xc109, "Samsung Ativ book 9 (NP900X3G)", ALC269_FIXUP_INV_DMIC),
@@ -6450,8 +6558,18 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
         SND_PCI_QUIRK(0x17aa, 0x2218, "Thinkpad X1 Carbon 2nd", ALC292_FIXUP_TPT440_DOCK),
         SND_PCI_QUIRK(0x17aa, 0x2223, "ThinkPad T550", ALC292_FIXUP_TPT440_DOCK),
         SND_PCI_QUIRK(0x17aa, 0x2226, "ThinkPad X250", ALC292_FIXUP_TPT440_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x222d, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x222e, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
         SND_PCI_QUIRK(0x17aa, 0x2231, "Thinkpad T560", ALC292_FIXUP_TPT460),
         SND_PCI_QUIRK(0x17aa, 0x2233, "Thinkpad", ALC292_FIXUP_TPT460),
+        SND_PCI_QUIRK(0x17aa, 0x2245, "Thinkpad T470", ALC298_FIXUP_TPT470_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x2246, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x2247, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x2249, "Thinkpad", ALC292_FIXUP_TPT460),
+        SND_PCI_QUIRK(0x17aa, 0x224b, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x224c, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x224d, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x225d, "Thinkpad T480", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
         SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
         SND_PCI_QUIRK(0x17aa, 0x30e2, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
         SND_PCI_QUIRK(0x17aa, 0x310c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
@@ -6472,7 +6590,12 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
         SND_PCI_QUIRK(0x17aa, 0x5050, "Thinkpad T560p", ALC292_FIXUP_TPT460),
         SND_PCI_QUIRK(0x17aa, 0x5051, "Thinkpad L460", ALC292_FIXUP_TPT460),
         SND_PCI_QUIRK(0x17aa, 0x5053, "Thinkpad T460", ALC292_FIXUP_TPT460),
+        SND_PCI_QUIRK(0x17aa, 0x505d, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x505f, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x5062, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
         SND_PCI_QUIRK(0x17aa, 0x5109, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+        SND_PCI_QUIRK(0x17aa, 0x511e, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
+        SND_PCI_QUIRK(0x17aa, 0x511f, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
         SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", ALC269_FIXUP_PCM_44K),
         SND_PCI_QUIRK(0x17aa, 0x9e54, "LENOVO NB", ALC269_FIXUP_LENOVO_EAPD),
         SND_PCI_QUIRK(0x1b7d, 0xa831, "Ordissimo EVE2 ", ALC269VB_FIXUP_ORDISSIMO_EVE2), /* Also known as Malata PC-B1303 */
@@ -6735,6 +6858,11 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
                 {0x14, 0x90170110},
                 {0x21, 0x02211020}),
         SND_HDA_PIN_QUIRK(0x10ec0256, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+                {0x12, 0x90a60130},
+                {0x14, 0x90170110},
+                {0x14, 0x01011020},
+                {0x21, 0x0221101f}),
+        SND_HDA_PIN_QUIRK(0x10ec0256, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
                 ALC256_STANDARD_PINS),
         SND_HDA_PIN_QUIRK(0x10ec0256, 0x1043, "ASUS", ALC256_FIXUP_ASUS_MIC,
                 {0x14, 0x90170110},
@@ -6803,6 +6931,10 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
                 {0x12, 0x90a60120},
                 {0x14, 0x90170110},
                 {0x21, 0x0321101f}),
+        SND_HDA_PIN_QUIRK(0x10ec0289, 0x1028, "Dell", ALC269_FIXUP_DELL4_MIC_NO_PRESENCE,
+                {0x12, 0xb7a60130},
+                {0x14, 0x90170110},
+                {0x21, 0x04211020}),
         SND_HDA_PIN_QUIRK(0x10ec0290, 0x103c, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1,
                 ALC290_STANDARD_PINS,
                 {0x15, 0x04211040},
@@ -7038,6 +7170,8 @@ static int patch_alc269(struct hda_codec *codec)
                 break;
         case 0x10ec0257:
                 spec->codec_variant = ALC269_TYPE_ALC257;
+                spec->shutup = alc256_shutup;
+                spec->init_hook = alc256_init;
                 spec->gen.mixer_nid = 0;
                 break;
         case 0x10ec0215:
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index c33a512283a4..9fb356db3ab2 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -579,13 +579,6 @@ static int acp_init(void __iomem *acp_mmio, u32 asic_type)
                 for (bank = 1; bank < 48; bank++)
                         acp_set_sram_bank_state(acp_mmio, bank, false);
         }
-
-        /* Stoney supports 16bit resolution */
-        if (asic_type == CHIP_STONEY) {
-                val = acp_reg_read(acp_mmio, mmACP_I2S_16BIT_RESOLUTION_EN);
-                val |= 0x03;
-                acp_reg_write(val, acp_mmio, mmACP_I2S_16BIT_RESOLUTION_EN);
-        }
         return 0;
 }
 
@@ -774,6 +767,7 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
 {
         int status;
         uint64_t size;
+        u32 val = 0;
         struct page *pg;
         struct snd_pcm_runtime *runtime;
         struct audio_substream_data *rtd;
@@ -786,6 +780,14 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
         if (WARN_ON(!rtd))
                 return -EINVAL;
 
+        if (adata->asic_type == CHIP_STONEY) {
+                val = acp_reg_read(adata->acp_mmio, mmACP_I2S_16BIT_RESOLUTION_EN);
+                if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+                        val |= ACP_I2S_SP_16BIT_RESOLUTION_EN;
+                else
+                        val |= ACP_I2S_MIC_16BIT_RESOLUTION_EN;
+                acp_reg_write(val, adata->acp_mmio, mmACP_I2S_16BIT_RESOLUTION_EN);
+        }
         size = params_buffer_bytes(params);
         status = snd_pcm_lib_malloc_pages(substream, size);
         if (status < 0)
diff --git a/sound/soc/amd/acp.h b/sound/soc/amd/acp.h
index ecb458935d1e..9293f179f272 100644
--- a/sound/soc/amd/acp.h
+++ b/sound/soc/amd/acp.h
@@ -70,6 +70,8 @@
 #define CAPTURE_END_DMA_DESCR_CH15 7
 
 #define mmACP_I2S_16BIT_RESOLUTION_EN       0x5209
+#define ACP_I2S_MIC_16BIT_RESOLUTION_EN 0x01
+#define ACP_I2S_SP_16BIT_RESOLUTION_EN  0x02
 enum acp_dma_priority_level {
         /* 0x0 Specifies the DMA channel is given normal priority */
         ACP_DMA_PRIORITY_LEVEL_NORMAL = 0x0,
diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c
index 5672e516bec3..c1830ccd3bb8 100644
--- a/sound/soc/codecs/hdmi-codec.c
+++ b/sound/soc/codecs/hdmi-codec.c
@@ -798,12 +798,7 @@ static int hdmi_codec_probe(struct platform_device *pdev)
 
 static int hdmi_codec_remove(struct platform_device *pdev)
 {
-        struct device *dev = &pdev->dev;
-        struct hdmi_codec_priv *hcp;
-
-        hcp = dev_get_drvdata(dev);
-        kfree(hcp->chmap_info);
-        snd_soc_unregister_codec(dev);
+        snd_soc_unregister_codec(&pdev->dev);
 
         return 0;
 }
diff --git a/sound/soc/codecs/rt5651.c b/sound/soc/codecs/rt5651.c
index 831b297978a4..45a73049cf64 100644
--- a/sound/soc/codecs/rt5651.c
+++ b/sound/soc/codecs/rt5651.c
@@ -1722,6 +1722,7 @@ static const struct regmap_config rt5651_regmap = {
         .num_reg_defaults = ARRAY_SIZE(rt5651_reg),
         .ranges = rt5651_ranges,
         .num_ranges = ARRAY_SIZE(rt5651_ranges),
+        .use_single_rw = true,
 };
 
 #if defined(CONFIG_OF)
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index e1ab5537d27a..c5c76ab8ccf1 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -529,10 +529,15 @@ static const struct snd_kcontrol_new sgtl5000_snd_controls[] = {
 static int sgtl5000_digital_mute(struct snd_soc_dai *codec_dai, int mute)
 {
         struct snd_soc_codec *codec = codec_dai->codec;
-        u16 adcdac_ctrl = SGTL5000_DAC_MUTE_LEFT | SGTL5000_DAC_MUTE_RIGHT;
+        u16 i2s_pwr = SGTL5000_I2S_IN_POWERUP;
 
-        snd_soc_update_bits(codec, SGTL5000_CHIP_ADCDAC_CTRL,
-                        adcdac_ctrl, mute ? adcdac_ctrl : 0);
+        /*
+         * During 'digital mute' do not mute DAC
+         * because LINE_IN would be muted aswell. We want to mute
+         * only I2S block - this can be done by powering it off
+         */
+        snd_soc_update_bits(codec, SGTL5000_CHIP_DIG_POWER,
+                        i2s_pwr, mute ? 0 : i2s_pwr);
 
         return 0;
 }
@@ -871,15 +876,26 @@ static int sgtl5000_pcm_hw_params(struct snd_pcm_substream *substream,
 static int sgtl5000_set_bias_level(struct snd_soc_codec *codec,
                                    enum snd_soc_bias_level level)
 {
+        struct sgtl5000_priv *sgtl = snd_soc_codec_get_drvdata(codec);
+        int ret;
+
         switch (level) {
         case SND_SOC_BIAS_ON:
         case SND_SOC_BIAS_PREPARE:
         case SND_SOC_BIAS_STANDBY:
+                regcache_cache_only(sgtl->regmap, false);
+                ret = regcache_sync(sgtl->regmap);
+                if (ret) {
+                        regcache_cache_only(sgtl->regmap, true);
+                        return ret;
+                }
+
                 snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
                                     SGTL5000_REFTOP_POWERUP,
                                     SGTL5000_REFTOP_POWERUP);
                 break;
         case SND_SOC_BIAS_OFF:
+                regcache_cache_only(sgtl->regmap, true);
                 snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
                                     SGTL5000_REFTOP_POWERUP, 0);
                 break;
@@ -1237,6 +1253,10 @@ static int sgtl5000_probe(struct snd_soc_codec *codec)
          */
         snd_soc_write(codec, SGTL5000_DAP_CTRL, 0);
 
+        /* Unmute DAC after start */
+        snd_soc_update_bits(codec, SGTL5000_CHIP_ADCDAC_CTRL,
+                SGTL5000_DAC_MUTE_LEFT | SGTL5000_DAC_MUTE_RIGHT, 0);
+
         return 0;
 
 err:
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 66e32f5d2917..989d093abda7 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -1204,12 +1204,14 @@ static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
                 kcontrol->put = wm_coeff_put_acked;
                 break;
         default:
-                kcontrol->get = wm_coeff_get;
-                kcontrol->put = wm_coeff_put;
-
-                ctl->bytes_ext.max = ctl->len;
-                ctl->bytes_ext.get = wm_coeff_tlv_get;
-                ctl->bytes_ext.put = wm_coeff_tlv_put;
+                if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
+                        ctl->bytes_ext.max = ctl->len;
+                        ctl->bytes_ext.get = wm_coeff_tlv_get;
+                        ctl->bytes_ext.put = wm_coeff_tlv_put;
+                } else {
+                        kcontrol->get = wm_coeff_get;
+                        kcontrol->put = wm_coeff_put;
+                }
                 break;
         }
 
diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index dca1143c1150..a4aa931ebfae 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -104,7 +104,7 @@
 
 #define SUN8I_I2S_CHAN_CFG_REG          0x30
 #define SUN8I_I2S_CHAN_CFG_RX_SLOT_NUM_MASK     GENMASK(6, 4)
-#define SUN8I_I2S_CHAN_CFG_RX_SLOT_NUM(chan)    (chan - 1)
+#define SUN8I_I2S_CHAN_CFG_RX_SLOT_NUM(chan)    ((chan - 1) << 4)
 #define SUN8I_I2S_CHAN_CFG_TX_SLOT_NUM_MASK     GENMASK(2, 0)
 #define SUN8I_I2S_CHAN_CFG_TX_SLOT_NUM(chan)    (chan - 1)
 
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 9afb8ab524c7..06b22624ab7a 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -347,17 +347,20 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request,
                             int validx, int *value_ret)
 {
         struct snd_usb_audio *chip = cval->head.mixer->chip;
-        unsigned char buf[4 + 3 * sizeof(__u32)]; /* enough space for one range */
+        /* enough space for one range */
+        unsigned char buf[sizeof(__u16) + 3 * sizeof(__u32)];
         unsigned char *val;
-        int idx = 0, ret, size;
+        int idx = 0, ret, val_size, size;
         __u8 bRequest;
 
+        val_size = uac2_ctl_value_size(cval->val_type);
+
         if (request == UAC_GET_CUR) {
                 bRequest = UAC2_CS_CUR;
-                size = uac2_ctl_value_size(cval->val_type);
+                size = val_size;
         } else {
                 bRequest = UAC2_CS_RANGE;
-                size = sizeof(buf);
+                size = sizeof(__u16) + 3 * val_size;
         }
 
         memset(buf, 0, sizeof(buf));
@@ -390,16 +393,17 @@ error:
                 val = buf + sizeof(__u16);
                 break;
         case UAC_GET_MAX:
-                val = buf + sizeof(__u16) * 2;
+                val = buf + sizeof(__u16) + val_size;
                 break;
         case UAC_GET_RES:
-                val = buf + sizeof(__u16) * 3;
+                val = buf + sizeof(__u16) + val_size * 2;
                 break;
         default:
                 return -EINVAL;
         }
 
-        *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16)));
+        *value_ret = convert_signed_value(cval,
+                                          snd_usb_combine_bytes(val, val_size));
 
         return 0;
 }
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index b9c9a19f9588..3cbfae6604f9 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -357,6 +357,15 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
 
                 alts = &iface->altsetting[1];
                 goto add_sync_ep;
+        case USB_ID(0x1397, 0x0002):
+                ep = 0x81;
+                iface = usb_ifnum_to_if(dev, 1);
+
+                if (!iface || iface->num_altsetting == 0)
+                        return -EINVAL;
+
+                alts = &iface->altsetting[1];
+                goto add_sync_ep;
 
         }
         if (attr == USB_ENDPOINT_SYNC_ASYNC &&
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 50252046b01d..754e632a27bd 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -3325,4 +3325,51 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"),
         }
 },
 
+{
+        /*
+         * Bower's & Wilkins PX headphones only support the 48 kHz sample rate
+         * even though it advertises more. The capture interface doesn't work
+         * even on windows.
+         */
+        USB_DEVICE(0x19b5, 0x0021),
+        .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+                .ifnum = QUIRK_ANY_INTERFACE,
+                .type = QUIRK_COMPOSITE,
+                .data = (const struct snd_usb_audio_quirk[]) {
+                        {
+                                .ifnum = 0,
+                                .type = QUIRK_AUDIO_STANDARD_MIXER,
+                        },
+                        /* Capture */
+                        {
+                                .ifnum = 1,
+                                .type = QUIRK_IGNORE_INTERFACE,
+                        },
+                        /* Playback */
+                        {
+                                .ifnum = 2,
+                                .type = QUIRK_AUDIO_FIXED_ENDPOINT,
+                                .data = &(const struct audioformat) {
+                                        .formats = SNDRV_PCM_FMTBIT_S16_LE,
+                                        .channels = 2,
+                                        .iface = 2,
+                                        .altsetting = 1,
+                                        .altset_idx = 1,
+                                        .attributes = UAC_EP_CS_ATTR_FILL_MAX |
+                                                UAC_EP_CS_ATTR_SAMPLE_RATE,
+                                        .endpoint = 0x03,
+                                        .ep_attr = USB_ENDPOINT_XFER_ISOC,
+                                        .rates = SNDRV_PCM_RATE_48000,
+                                        .rate_min = 48000,
+                                        .rate_max = 48000,
+                                        .nr_rates = 1,
+                                        .rate_table = (unsigned int[]) {
+                                                48000
+                                        }
+                                }
+                        },
+                }
+        }
+},
+
 #undef USB_DEVICE_VENDOR_SPEC
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index a66ef5777887..ea8f3de92fa4 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1363,8 +1363,11 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
                         return SNDRV_PCM_FMTBIT_DSD_U32_BE;
                 break;
 
-        /* Amanero Combo384 USB interface with native DSD support */
-        case USB_ID(0x16d0, 0x071a):
+        /* Amanero Combo384 USB based DACs with native DSD support */
+        case USB_ID(0x16d0, 0x071a):  /* Amanero - Combo384 */
+        case USB_ID(0x2ab6, 0x0004):  /* T+A DAC8DSD-V2.0, MP1000E-V2.0, MP2000R-V2.0, MP2500R-V2.0, MP3100HV-V2.0 */
+        case USB_ID(0x2ab6, 0x0005):  /* T+A USB HD Audio 1 */
+        case USB_ID(0x2ab6, 0x0006):  /* T+A USB HD Audio 2 */
                 if (fp->altsetting == 2) {
                         switch (le16_to_cpu(chip->dev->descriptor.bcdDevice)) {
                         case 0x199:
diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c
index a0951505c7f5..4ed9d0c41843 100644
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -50,6 +50,7 @@
 /*standard module options for ALSA. This module supports only one card*/
 static int hdmi_card_index = SNDRV_DEFAULT_IDX1;
 static char *hdmi_card_id = SNDRV_DEFAULT_STR1;
+static bool single_port;
 
 module_param_named(index, hdmi_card_index, int, 0444);
 MODULE_PARM_DESC(index,
@@ -57,6 +58,9 @@ MODULE_PARM_DESC(index,
 module_param_named(id, hdmi_card_id, charp, 0444);
 MODULE_PARM_DESC(id,
                 "ID string for INTEL Intel HDMI Audio controller.");
+module_param(single_port, bool, 0444);
+MODULE_PARM_DESC(single_port,
+                "Single-port mode (for compatibility)");
 
 /*
  * ELD SA bits in the CEA Speaker Allocation data block
@@ -1579,7 +1583,11 @@ static irqreturn_t display_pipe_interrupt_handler(int irq, void *dev_id)
 static void notify_audio_lpe(struct platform_device *pdev, int port)
 {
         struct snd_intelhad_card *card_ctx = platform_get_drvdata(pdev);
-        struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port];
+        struct snd_intelhad *ctx;
+
+        ctx = &card_ctx->pcm_ctx[single_port ? 0 : port];
+        if (single_port)
+                ctx->port = port;
 
         schedule_work(&ctx->hdmi_audio_wq);
 }
@@ -1743,6 +1751,7 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
 {
         struct snd_card *card;
         struct snd_intelhad_card *card_ctx;
+        struct snd_intelhad *ctx;
         struct snd_pcm *pcm;
         struct intel_hdmi_lpe_audio_pdata *pdata;
         int irq;
@@ -1787,6 +1796,21 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
 
         platform_set_drvdata(pdev, card_ctx);
 
+        card_ctx->num_pipes = pdata->num_pipes;
+        card_ctx->num_ports = single_port ? 1 : pdata->num_ports;
+
+        for_each_port(card_ctx, port) {
+                ctx = &card_ctx->pcm_ctx[port];
+                ctx->card_ctx = card_ctx;
+                ctx->dev = card_ctx->dev;
+                ctx->port = single_port ? -1 : port;
+                ctx->pipe = -1;
+
+                spin_lock_init(&ctx->had_spinlock);
+                mutex_init(&ctx->mutex);
+                INIT_WORK(&ctx->hdmi_audio_wq, had_audio_wq);
+        }
+
         dev_dbg(&pdev->dev, "%s: mmio_start = 0x%x, mmio_end = 0x%x\n",
                 __func__, (unsigned int)res_mmio->start,
                 (unsigned int)res_mmio->end);
@@ -1816,19 +1840,12 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
         init_channel_allocations();
 
         card_ctx->num_pipes = pdata->num_pipes;
-        card_ctx->num_ports = pdata->num_ports;
+        card_ctx->num_ports = single_port ? 1 : pdata->num_ports;
 
         for_each_port(card_ctx, port) {
-                struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port];
                 int i;
 
-                ctx->card_ctx = card_ctx;
-                ctx->dev = card_ctx->dev;
-                ctx->port = port;
-                ctx->pipe = -1;
-
-                INIT_WORK(&ctx->hdmi_audio_wq, had_audio_wq);
-
+                ctx = &card_ctx->pcm_ctx[port];
                 ret = snd_pcm_new(card, INTEL_HAD, port, MAX_PB_STREAMS,
                                   MAX_CAP_STREAMS, &pcm);
                 if (ret)
diff --git a/tools/arch/powerpc/include/uapi/asm/kvm.h b/tools/arch/powerpc/include/uapi/asm/kvm.h
index 637b7263cb86..833ed9a16adf 100644
--- a/tools/arch/powerpc/include/uapi/asm/kvm.h
+++ b/tools/arch/powerpc/include/uapi/asm/kvm.h
@@ -632,6 +632,8 @@ struct kvm_ppc_cpu_char {
 #define KVM_REG_PPC_TIDR        (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xbc)
 #define KVM_REG_PPC_PSSCR       (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xbd)
 
+#define KVM_REG_PPC_DEC_EXPIRY  (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xbe)
+
 /* Transactional Memory checkpointed state:
  * This is all GPRs, all VSX regs and a subset of SPRs
  */
diff --git a/tools/arch/s390/include/uapi/asm/unistd.h b/tools/arch/s390/include/uapi/asm/unistd.h
deleted file mode 100644
index 725120939051..000000000000
--- a/tools/arch/s390/include/uapi/asm/unistd.h
+++ /dev/null
@@ -1,412 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/*
- *  S390 version
- *
- *  Derived from "include/asm-i386/unistd.h"
- */
-
-#ifndef _UAPI_ASM_S390_UNISTD_H_
-#define _UAPI_ASM_S390_UNISTD_H_
-
-/*
- * This file contains the system call numbers.
- */
-
-#define __NR_exit                 1
-#define __NR_fork                 2
-#define __NR_read                 3
-#define __NR_write                4
-#define __NR_open                 5
-#define __NR_close                6
-#define __NR_restart_syscall      7
-#define __NR_creat                8
-#define __NR_link                 9
-#define __NR_unlink              10
-#define __NR_execve              11
-#define __NR_chdir               12
-#define __NR_mknod               14
-#define __NR_chmod               15
-#define __NR_lseek               19
-#define __NR_getpid              20
-#define __NR_mount               21
-#define __NR_umount              22
-#define __NR_ptrace              26
-#define __NR_alarm               27
-#define __NR_pause               29
-#define __NR_utime               30
-#define __NR_access              33
-#define __NR_nice                34
-#define __NR_sync                36
-#define __NR_kill                37
-#define __NR_rename              38
-#define __NR_mkdir               39
-#define __NR_rmdir               40
-#define __NR_dup                 41
-#define __NR_pipe                42
-#define __NR_times               43
-#define __NR_brk                 45
-#define __NR_signal              48
-#define __NR_acct                51
-#define __NR_umount2             52
-#define __NR_ioctl               54
-#define __NR_fcntl               55
-#define __NR_setpgid             57
-#define __NR_umask               60
-#define __NR_chroot              61
-#define __NR_ustat               62
-#define __NR_dup2                63
-#define __NR_getppid             64
-#define __NR_getpgrp             65
-#define __NR_setsid              66
-#define __NR_sigaction           67
-#define __NR_sigsuspend          72
-#define __NR_sigpending          73
-#define __NR_sethostname         74
-#define __NR_setrlimit           75
-#define __NR_getrusage           77
-#define __NR_gettimeofday        78
-#define __NR_settimeofday        79
-#define __NR_symlink             83
-#define __NR_readlink            85
-#define __NR_uselib              86
-#define __NR_swapon              87
-#define __NR_reboot              88
-#define __NR_readdir             89
-#define __NR_mmap                90
-#define __NR_munmap              91
-#define __NR_truncate            92
-#define __NR_ftruncate           93
-#define __NR_fchmod              94
-#define __NR_getpriority         96
-#define __NR_setpriority         97
-#define __NR_statfs              99
-#define __NR_fstatfs            100
-#define __NR_socketcall         102
-#define __NR_syslog             103
-#define __NR_setitimer          104
-#define __NR_getitimer          105
-#define __NR_stat               106
-#define __NR_lstat              107
-#define __NR_fstat              108
-#define __NR_lookup_dcookie     110
-#define __NR_vhangup            111
-#define __NR_idle               112
-#define __NR_wait4              114
-#define __NR_swapoff            115
-#define __NR_sysinfo            116
-#define __NR_ipc                117
-#define __NR_fsync              118
-#define __NR_sigreturn          119
-#define __NR_clone              120
-#define __NR_setdomainname      121
-#define __NR_uname              122
-#define __NR_adjtimex           124
-#define __NR_mprotect           125
-#define __NR_sigprocmask        126
-#define __NR_create_module      127
-#define __NR_init_module        128
-#define __NR_delete_module      129
-#define __NR_get_kernel_syms    130
-#define __NR_quotactl           131
-#define __NR_getpgid            132
-#define __NR_fchdir             133
-#define __NR_bdflush            134
-#define __NR_sysfs              135
-#define __NR_personality        136
-#define __NR_afs_syscall        137 /* Syscall for Andrew File System */
-#define __NR_getdents           141
-#define __NR_flock              143
-#define __NR_msync              144
-#define __NR_readv              145
-#define __NR_writev             146
-#define __NR_getsid             147
-#define __NR_fdatasync          148
-#define __NR__sysctl            149
-#define __NR_mlock              150
-#define __NR_munlock            151
-#define __NR_mlockall           152
-#define __NR_munlockall         153
-#define __NR_sched_setparam             154
-#define __NR_sched_getparam             155
-#define __NR_sched_setscheduler         156
-#define __NR_sched_getscheduler         157
-#define __NR_sched_yield                158
-#define __NR_sched_get_priority_max     159
-#define __NR_sched_get_priority_min     160
-#define __NR_sched_rr_get_interval      161
-#define __NR_nanosleep          162
-#define __NR_mremap             163
-#define __NR_query_module       167
-#define __NR_poll               168
-#define __NR_nfsservctl         169
-#define __NR_prctl              172
-#define __NR_rt_sigreturn       173
-#define __NR_rt_sigaction       174
-#define __NR_rt_sigprocmask     175
-#define __NR_rt_sigpending      176
-#define __NR_rt_sigtimedwait    177
-#define __NR_rt_sigqueueinfo    178
-#define __NR_rt_sigsuspend      179
-#define __NR_pread64            180
-#define __NR_pwrite64           181
-#define __NR_getcwd             183
-#define __NR_capget             184
-#define __NR_capset             185
-#define __NR_sigaltstack        186
-#define __NR_sendfile           187
-#define __NR_getpmsg            188
-#define __NR_putpmsg            189
-#define __NR_vfork              190
-#define __NR_pivot_root         217
-#define __NR_mincore            218
-#define __NR_madvise            219
-#define __NR_getdents64         220
-#define __NR_readahead          222
-#define __NR_setxattr           224
-#define __NR_lsetxattr          225
-#define __NR_fsetxattr          226
-#define __NR_getxattr           227
-#define __NR_lgetxattr          228
-#define __NR_fgetxattr          229
-#define __NR_listxattr          230
-#define __NR_llistxattr         231
-#define __NR_flistxattr         232
-#define __NR_removexattr        233
-#define __NR_lremovexattr       234
-#define __NR_fremovexattr       235
-#define __NR_gettid             236
-#define __NR_tkill              237
-#define __NR_futex              238
-#define __NR_sched_setaffinity  239
-#define __NR_sched_getaffinity  240
-#define __NR_tgkill             241
-/* Number 242 is reserved for tux */
-#define __NR_io_setup           243
-#define __NR_io_destroy         244
-#define __NR_io_getevents       245
-#define __NR_io_submit          246
-#define __NR_io_cancel          247
-#define __NR_exit_group         248
-#define __NR_epoll_create       249
-#define __NR_epoll_ctl          250
-#define __NR_epoll_wait         251
-#define __NR_set_tid_address    252
-#define __NR_fadvise64          253
-#define __NR_timer_create       254
-#define __NR_timer_settime      255
-#define __NR_timer_gettime      256
-#define __NR_timer_getoverrun   257
-#define __NR_timer_delete       258
-#define __NR_clock_settime      259
-#define __NR_clock_gettime      260
-#define __NR_clock_getres       261
-#define __NR_clock_nanosleep    262
-/* Number 263 is reserved for vserver */
-#define __NR_statfs64           265
-#define __NR_fstatfs64          266
-#define __NR_remap_file_pages   267
-#define __NR_mbind              268
-#define __NR_get_mempolicy      269
-#define __NR_set_mempolicy      270
-#define __NR_mq_open            271
-#define __NR_mq_unlink          272
-#define __NR_mq_timedsend       273
-#define __NR_mq_timedreceive    274
-#define __NR_mq_notify          275
-#define __NR_mq_getsetattr      276
-#define __NR_kexec_load         277
-#define __NR_add_key            278
-#define __NR_request_key        279
-#define __NR_keyctl             280
-#define __NR_waitid             281
-#define __NR_ioprio_set         282
-#define __NR_ioprio_get         283
-#define __NR_inotify_init       284
-#define __NR_inotify_add_watch  285
-#define __NR_inotify_rm_watch   286
-#define __NR_migrate_pages      287
-#define __NR_openat             288
-#define __NR_mkdirat            289
-#define __NR_mknodat            290
-#define __NR_fchownat           291
-#define __NR_futimesat          292
-#define __NR_unlinkat           294
-#define __NR_renameat           295
-#define __NR_linkat             296
-#define __NR_symlinkat          297
-#define __NR_readlinkat         298
-#define __NR_fchmodat           299
-#define __NR_faccessat          300
-#define __NR_pselect6           301
-#define __NR_ppoll              302
-#define __NR_unshare            303
-#define __NR_set_robust_list    304
-#define __NR_get_robust_list    305
-#define __NR_splice             306
-#define __NR_sync_file_range    307
-#define __NR_tee                308
-#define __NR_vmsplice           309
-#define __NR_move_pages         310
-#define __NR_getcpu             311
-#define __NR_epoll_pwait        312
-#define __NR_utimes             313
-#define __NR_fallocate          314
-#define __NR_utimensat          315
-#define __NR_signalfd           316
-#define __NR_timerfd            317
-#define __NR_eventfd            318
-#define __NR_timerfd_create     319
-#define __NR_timerfd_settime    320
-#define __NR_timerfd_gettime    321
-#define __NR_signalfd4          322
-#define __NR_eventfd2           323
-#define __NR_inotify_init1      324
-#define __NR_pipe2              325
-#define __NR_dup3               326
-#define __NR_epoll_create1      327
-#define __NR_preadv             328
-#define __NR_pwritev            329
-#define __NR_rt_tgsigqueueinfo  330
-#define __NR_perf_event_open    331
-#define __NR_fanotify_init      332
-#define __NR_fanotify_mark      333
-#define __NR_prlimit64          334
-#define __NR_name_to_handle_at  335
-#define __NR_open_by_handle_at  336
-#define __NR_clock_adjtime      337
-#define __NR_syncfs             338
-#define __NR_setns              339
-#define __NR_process_vm_readv   340
-#define __NR_process_vm_writev  341
-#define __NR_s390_runtime_instr 342
-#define __NR_kcmp               343
-#define __NR_finit_module       344
-#define __NR_sched_setattr      345
-#define __NR_sched_getattr      346
-#define __NR_renameat2          347
-#define __NR_seccomp            348
-#define __NR_getrandom          349
-#define __NR_memfd_create       350
-#define __NR_bpf                351
-#define __NR_s390_pci_mmio_write        352
-#define __NR_s390_pci_mmio_read         353
-#define __NR_execveat           354
-#define __NR_userfaultfd        355
-#define __NR_membarrier         356
-#define __NR_recvmmsg           357
-#define __NR_sendmmsg           358
-#define __NR_socket             359
-#define __NR_socketpair         360
-#define __NR_bind               361
-#define __NR_connect            362
-#define __NR_listen             363
-#define __NR_accept4            364
-#define __NR_getsockopt         365
-#define __NR_setsockopt         366
-#define __NR_getsockname        367
-#define __NR_getpeername        368
-#define __NR_sendto             369
-#define __NR_sendmsg            370
-#define __NR_recvfrom           371
-#define __NR_recvmsg            372
-#define __NR_shutdown           373
-#define __NR_mlock2             374
-#define __NR_copy_file_range    375
-#define __NR_preadv2            376
-#define __NR_pwritev2           377
-#define __NR_s390_guarded_storage       378
-#define __NR_statx              379
-#define __NR_s390_sthyi         380
-#define NR_syscalls 381
-
-/* 
- * There are some system calls that are not present on 64 bit, some
- * have a different name although they do the same (e.g. __NR_chown32
- * is __NR_chown on 64 bit).
- */
-#ifndef __s390x__
-
-#define __NR_time                13
-#define __NR_lchown              16
-#define __NR_setuid              23
-#define __NR_getuid              24
-#define __NR_stime               25
-#define __NR_setgid              46
-#define __NR_getgid              47
-#define __NR_geteuid             49
-#define __NR_getegid             50
-#define __NR_setreuid            70
-#define __NR_setregid            71
-#define __NR_getrlimit           76
-#define __NR_getgroups           80
-#define __NR_setgroups           81
-#define __NR_fchown              95
-#define __NR_ioperm             101
-#define __NR_setfsuid           138
-#define __NR_setfsgid           139
-#define __NR__llseek            140
-#define __NR__newselect         142
-#define __NR_setresuid          164
-#define __NR_getresuid          165
-#define __NR_setresgid          170
-#define __NR_getresgid          171
-#define __NR_chown              182
-#define __NR_ugetrlimit         191     /* SuS compliant getrlimit */
-#define __NR_mmap2              192
-#define __NR_truncate64         193
-#define __NR_ftruncate64        194
-#define __NR_stat64             195
-#define __NR_lstat64            196
-#define __NR_fstat64            197
-#define __NR_lchown32           198
-#define __NR_getuid32           199
-#define __NR_getgid32           200
-#define __NR_geteuid32          201
-#define __NR_getegid32          202
-#define __NR_setreuid32         203
-#define __NR_setregid32         204
-#define __NR_getgroups32        205
-#define __NR_setgroups32        206
-#define __NR_fchown32           207
-#define __NR_setresuid32        208
-#define __NR_getresuid32        209
-#define __NR_setresgid32        210
-#define __NR_getresgid32        211
-#define __NR_chown32            212
-#define __NR_setuid32           213
-#define __NR_setgid32           214
-#define __NR_setfsuid32         215
-#define __NR_setfsgid32         216
-#define __NR_fcntl64            221
-#define __NR_sendfile64         223
-#define __NR_fadvise64_64       264
-#define __NR_fstatat64          293
-
-#else
-
-#define __NR_select             142
-#define __NR_getrlimit          191     /* SuS compliant getrlimit */
-#define __NR_lchown             198
-#define __NR_getuid             199
-#define __NR_getgid             200
-#define __NR_geteuid            201
-#define __NR_getegid            202
-#define __NR_setreuid           203
-#define __NR_setregid           204
-#define __NR_getgroups          205
-#define __NR_setgroups          206
-#define __NR_fchown             207
-#define __NR_setresuid          208
-#define __NR_getresuid          209
-#define __NR_setresgid          210
-#define __NR_getresgid          211
-#define __NR_chown              212
-#define __NR_setuid             213
-#define __NR_setgid             214
-#define __NR_setfsuid           215
-#define __NR_setfsgid           216
-#define __NR_newfstatat         293
-
-#endif
-
-#endif /* _UAPI_ASM_S390_UNISTD_H_ */
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h
index 1d9199e1c2ad..f41079da38c5 100644
--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -210,8 +210,10 @@
 
 #define X86_FEATURE_MBA                 ( 7*32+18) /* Memory Bandwidth Allocation */
 #define X86_FEATURE_RSB_CTXSW           ( 7*32+19) /* "" Fill RSB on context switches */
+#define X86_FEATURE_SEV                 ( 7*32+20) /* AMD Secure Encrypted Virtualization */
 
 #define X86_FEATURE_USE_IBPB            ( 7*32+21) /* "" Indirect Branch Prediction Barrier enabled */
+#define X86_FEATURE_USE_IBRS_FW         ( 7*32+22) /* "" Use IBRS during runtime firmware calls */
 
 /* Virtualization flags: Linux defined, word 8 */
 #define X86_FEATURE_TPR_SHADOW          ( 8*32+ 0) /* Intel TPR Shadow */
diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c
index 0b482c0070e0..465995281dcd 100644
--- a/tools/bpf/bpftool/common.c
+++ b/tools/bpf/bpftool/common.c
@@ -55,6 +55,10 @@
 
 #include "main.h"
 
+#ifndef BPF_FS_MAGIC
+#define BPF_FS_MAGIC            0xcafe4a11
+#endif
+
 void p_err(const char *fmt, ...)
 {
         va_list ap;
diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index 3a0396d87c42..185acfa229b5 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -244,7 +244,7 @@ static int do_batch(int argc, char **argv)
         }
 
         if (errno && errno != ENOENT) {
-                perror("reading batch file failed");
+                p_err("reading batch file failed: %s", strerror(errno));
                 err = -1;
         } else {
                 p_info("processed %d lines", lines);
diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index e8e2baaf93c2..e549e329be82 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c
@@ -774,6 +774,9 @@ static int do_dump(int argc, char **argv)
                               n < 0 ? strerror(errno) : "short write");
                         goto err_free;
                 }
+
+                if (json_output)
+                        jsonw_null(json_wtr);
         } else {
                 if (member_len == &info.jited_prog_len) {
                         const char *name = NULL;
diff --git a/tools/cgroup/Makefile b/tools/cgroup/Makefile
index 860fa151640a..ffca068e4a76 100644
--- a/tools/cgroup/Makefile
+++ b/tools/cgroup/Makefile
@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 # Makefile for cgroup tools
 
-CC = $(CROSS_COMPILE)gcc
 CFLAGS = -Wall -Wextra
 
 all: cgroup_event_listener
diff --git a/tools/gpio/Makefile b/tools/gpio/Makefile
index 805a2c0cf4cd..240eda014b37 100644
--- a/tools/gpio/Makefile
+++ b/tools/gpio/Makefile
@@ -12,8 +12,6 @@ endif
 # (this improves performance and avoids hard-to-debug behaviour);
 MAKEFLAGS += -r
 
-CC = $(CROSS_COMPILE)gcc
-LD = $(CROSS_COMPILE)ld
 CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
 
 ALL_TARGETS := lsgpio gpio-hammer gpio-event-mon
diff --git a/tools/hv/Makefile b/tools/hv/Makefile
index 1139d71fa0cf..5db5e62cebda 100644
--- a/tools/hv/Makefile
+++ b/tools/hv/Makefile
@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 # Makefile for Hyper-V tools
 
-CC = $(CROSS_COMPILE)gcc
 WARNINGS = -Wall -Wextra
 CFLAGS = $(WARNINGS) -g $(shell getconf LFS_CFLAGS)
 
diff --git a/tools/iio/Makefile b/tools/iio/Makefile
index a08e7a47d6a3..332ed2f6c2c2 100644
--- a/tools/iio/Makefile
+++ b/tools/iio/Makefile
@@ -12,8 +12,6 @@ endif
 # (this improves performance and avoids hard-to-debug behaviour);
 MAKEFLAGS += -r
 
-CC = $(CROSS_COMPILE)gcc
-LD = $(CROSS_COMPILE)ld
 CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
 
 ALL_TARGETS := iio_event_monitor lsiio iio_generic_buffer
diff --git a/tools/include/uapi/drm/i915_drm.h b/tools/include/uapi/drm/i915_drm.h
index ac3c6503ca27..536ee4febd74 100644
--- a/tools/include/uapi/drm/i915_drm.h
+++ b/tools/include/uapi/drm/i915_drm.h
@@ -86,6 +86,62 @@ enum i915_mocs_table_index {
         I915_MOCS_CACHED,
 };
 
+/*
+ * Different engines serve different roles, and there may be more than one
+ * engine serving each role. enum drm_i915_gem_engine_class provides a
+ * classification of the role of the engine, which may be used when requesting
+ * operations to be performed on a certain subset of engines, or for providing
+ * information about that group.
+ */
+enum drm_i915_gem_engine_class {
+        I915_ENGINE_CLASS_RENDER        = 0,
+        I915_ENGINE_CLASS_COPY          = 1,
+        I915_ENGINE_CLASS_VIDEO         = 2,
+        I915_ENGINE_CLASS_VIDEO_ENHANCE = 3,
+
+        I915_ENGINE_CLASS_INVALID       = -1
+};
+
+/**
+ * DOC: perf_events exposed by i915 through /sys/bus/event_sources/drivers/i915
+ *
+ */
+
+enum drm_i915_pmu_engine_sample {
+        I915_SAMPLE_BUSY = 0,
+        I915_SAMPLE_WAIT = 1,
+        I915_SAMPLE_SEMA = 2
+};
+
+#define I915_PMU_SAMPLE_BITS (4)
+#define I915_PMU_SAMPLE_MASK (0xf)
+#define I915_PMU_SAMPLE_INSTANCE_BITS (8)
+#define I915_PMU_CLASS_SHIFT \
+        (I915_PMU_SAMPLE_BITS + I915_PMU_SAMPLE_INSTANCE_BITS)
+
+#define __I915_PMU_ENGINE(class, instance, sample) \
+        ((class) << I915_PMU_CLASS_SHIFT | \
+        (instance) << I915_PMU_SAMPLE_BITS | \
+        (sample))
+
+#define I915_PMU_ENGINE_BUSY(class, instance) \
+        __I915_PMU_ENGINE(class, instance, I915_SAMPLE_BUSY)
+
+#define I915_PMU_ENGINE_WAIT(class, instance) \
+        __I915_PMU_ENGINE(class, instance, I915_SAMPLE_WAIT)
+
+#define I915_PMU_ENGINE_SEMA(class, instance) \
+        __I915_PMU_ENGINE(class, instance, I915_SAMPLE_SEMA)
+
+#define __I915_PMU_OTHER(x) (__I915_PMU_ENGINE(0xff, 0xff, 0xf) + 1 + (x))
+
+#define I915_PMU_ACTUAL_FREQUENCY       __I915_PMU_OTHER(0)
+#define I915_PMU_REQUESTED_FREQUENCY    __I915_PMU_OTHER(1)
+#define I915_PMU_INTERRUPTS             __I915_PMU_OTHER(2)
+#define I915_PMU_RC6_RESIDENCY          __I915_PMU_OTHER(3)
+
+#define I915_PMU_LAST I915_PMU_RC6_RESIDENCY
+
 /* Each region is a minimum of 16k, and there are at most 255 of them.
  */
 #define I915_NR_TEX_REGIONS 255 /* table size 2k - maximum due to use
@@ -450,6 +506,27 @@ typedef struct drm_i915_irq_wait {
  */
 #define I915_PARAM_HAS_EXEC_FENCE_ARRAY  49
 
+/*
+ * Query whether every context (both per-file default and user created) is
+ * isolated (insofar as HW supports). If this parameter is not true, then
+ * freshly created contexts may inherit values from an existing context,
+ * rather than default HW values. If true, it also ensures (insofar as HW
+ * supports) that all state set by this context will not leak to any other
+ * context.
+ *
+ * As not every engine across every gen support contexts, the returned
+ * value reports the support of context isolation for individual engines by
+ * returning a bitmask of each engine class set to true if that class supports
+ * isolation.
+ */
+#define I915_PARAM_HAS_CONTEXT_ISOLATION 50
+
+/* Frequency of the command streamer timestamps given by the *_TIMESTAMP
+ * registers. This used to be fixed per platform but from CNL onwards, this
+ * might vary depending on the parts.
+ */
+#define I915_PARAM_CS_TIMESTAMP_FREQUENCY 51
+
 typedef struct drm_i915_getparam {
         __s32 param;
         /*
diff --git a/tools/include/uapi/linux/if_link.h b/tools/include/uapi/linux/if_link.h
index 8616131e2c61..6d9447700e18 100644
--- a/tools/include/uapi/linux/if_link.h
+++ b/tools/include/uapi/linux/if_link.h
@@ -163,6 +163,7 @@ enum {
         IFLA_IF_NETNSID,
         IFLA_CARRIER_UP_COUNT,
         IFLA_CARRIER_DOWN_COUNT,
+        IFLA_NEW_IFINDEX,
         __IFLA_MAX
 };
 
diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index 8fb90a0819c3..7b26d4b0b052 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -761,6 +761,7 @@ struct kvm_ppc_resize_hpt {
 #define KVM_TRACE_PAUSE           __KVM_DEPRECATED_MAIN_0x07
 #define KVM_TRACE_DISABLE         __KVM_DEPRECATED_MAIN_0x08
 #define KVM_GET_EMULATED_CPUID    _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
+#define KVM_GET_MSR_FEATURE_INDEX_LIST    _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
 
 /*
  * Extension capability list.
@@ -934,6 +935,7 @@ struct kvm_ppc_resize_hpt {
 #define KVM_CAP_S390_AIS_MIGRATION 150
 #define KVM_CAP_PPC_GET_CPU_CHAR 151
 #define KVM_CAP_S390_BPB 152
+#define KVM_CAP_GET_MSR_FEATURES 153
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
@@ -1362,6 +1364,96 @@ struct kvm_s390_ucas_mapping {
 /* Available with KVM_CAP_S390_CMMA_MIGRATION */
 #define KVM_S390_GET_CMMA_BITS      _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
 #define KVM_S390_SET_CMMA_BITS      _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
+/* Memory Encryption Commands */
+#define KVM_MEMORY_ENCRYPT_OP      _IOWR(KVMIO, 0xba, unsigned long)
+
+struct kvm_enc_region {
+        __u64 addr;
+        __u64 size;
+};
+
+#define KVM_MEMORY_ENCRYPT_REG_REGION    _IOR(KVMIO, 0xbb, struct kvm_enc_region)
+#define KVM_MEMORY_ENCRYPT_UNREG_REGION  _IOR(KVMIO, 0xbc, struct kvm_enc_region)
+
+/* Secure Encrypted Virtualization command */
+enum sev_cmd_id {
+        /* Guest initialization commands */
+        KVM_SEV_INIT = 0,
+        KVM_SEV_ES_INIT,
+        /* Guest launch commands */
+        KVM_SEV_LAUNCH_START,
+        KVM_SEV_LAUNCH_UPDATE_DATA,
+        KVM_SEV_LAUNCH_UPDATE_VMSA,
+        KVM_SEV_LAUNCH_SECRET,
+        KVM_SEV_LAUNCH_MEASURE,
+        KVM_SEV_LAUNCH_FINISH,
+        /* Guest migration commands (outgoing) */
+        KVM_SEV_SEND_START,
+        KVM_SEV_SEND_UPDATE_DATA,
+        KVM_SEV_SEND_UPDATE_VMSA,
+        KVM_SEV_SEND_FINISH,
+        /* Guest migration commands (incoming) */
+        KVM_SEV_RECEIVE_START,
+        KVM_SEV_RECEIVE_UPDATE_DATA,
+        KVM_SEV_RECEIVE_UPDATE_VMSA,
+        KVM_SEV_RECEIVE_FINISH,
+        /* Guest status and debug commands */
+        KVM_SEV_GUEST_STATUS,
+        KVM_SEV_DBG_DECRYPT,
+        KVM_SEV_DBG_ENCRYPT,
+        /* Guest certificates commands */
+        KVM_SEV_CERT_EXPORT,
+
+        KVM_SEV_NR_MAX,
+};
+
+struct kvm_sev_cmd {
+        __u32 id;
+        __u64 data;
+        __u32 error;
+        __u32 sev_fd;
+};
+
+struct kvm_sev_launch_start {
+        __u32 handle;
+        __u32 policy;
+        __u64 dh_uaddr;
+        __u32 dh_len;
+        __u64 session_uaddr;
+        __u32 session_len;
+};
+
+struct kvm_sev_launch_update_data {
+        __u64 uaddr;
+        __u32 len;
+};
+
+
+struct kvm_sev_launch_secret {
+        __u64 hdr_uaddr;
+        __u32 hdr_len;
+        __u64 guest_uaddr;
+        __u32 guest_len;
+        __u64 trans_uaddr;
+        __u32 trans_len;
+};
+
+struct kvm_sev_launch_measure {
+        __u64 uaddr;
+        __u32 len;
+};
+
+struct kvm_sev_guest_status {
+        __u32 handle;
+        __u32 policy;
+        __u32 state;
+};
+
+struct kvm_sev_dbg {
+        __u64 src_uaddr;
+        __u64 dst_uaddr;
+        __u32 len;
+};
 
 #define KVM_DEV_ASSIGN_ENABLE_IOMMU     (1 << 0)
 #define KVM_DEV_ASSIGN_PCI_2_3          (1 << 1)
diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat
index a5684d0968b4..5898c22ba310 100755
--- a/tools/kvm/kvm_stat/kvm_stat
+++ b/tools/kvm/kvm_stat/kvm_stat
@@ -33,7 +33,7 @@ import resource
 import struct
 import re
 import subprocess
-from collections import defaultdict
+from collections import defaultdict, namedtuple
 
 VMX_EXIT_REASONS = {
     'EXCEPTION_NMI':        0,
@@ -228,6 +228,7 @@ IOCTL_NUMBERS = {
 }
 
 ENCODING = locale.getpreferredencoding(False)
+TRACE_FILTER = re.compile(r'^[^\(]*$')
 
 
 class Arch(object):
@@ -260,6 +261,11 @@ class Arch(object):
                     return ArchX86(SVM_EXIT_REASONS)
                 return
 
+    def tracepoint_is_child(self, field):
+        if (TRACE_FILTER.match(field)):
+            return None
+        return field.split('(', 1)[0]
+
 
 class ArchX86(Arch):
     def __init__(self, exit_reasons):
@@ -267,6 +273,10 @@ class ArchX86(Arch):
         self.ioctl_numbers = IOCTL_NUMBERS
         self.exit_reasons = exit_reasons
 
+    def debugfs_is_child(self, field):
+        """ Returns name of parent if 'field' is a child, None otherwise """
+        return None
+
 
 class ArchPPC(Arch):
     def __init__(self):
@@ -282,6 +292,10 @@ class ArchPPC(Arch):
         self.ioctl_numbers['SET_FILTER'] = 0x80002406 | char_ptr_size << 16
         self.exit_reasons = {}
 
+    def debugfs_is_child(self, field):
+        """ Returns name of parent if 'field' is a child, None otherwise """
+        return None
+
 
 class ArchA64(Arch):
     def __init__(self):
@@ -289,6 +303,10 @@ class ArchA64(Arch):
         self.ioctl_numbers = IOCTL_NUMBERS
         self.exit_reasons = AARCH64_EXIT_REASONS
 
+    def debugfs_is_child(self, field):
+        """ Returns name of parent if 'field' is a child, None otherwise """
+        return None
+
 
 class ArchS390(Arch):
     def __init__(self):
@@ -296,6 +314,12 @@ class ArchS390(Arch):
         self.ioctl_numbers = IOCTL_NUMBERS
         self.exit_reasons = None
 
+    def debugfs_is_child(self, field):
+        """ Returns name of parent if 'field' is a child, None otherwise """
+        if field.startswith('instruction_'):
+            return 'exit_instruction'
+
+
 ARCH = Arch.get_arch()
 
 
@@ -331,9 +355,6 @@ class perf_event_attr(ctypes.Structure):
 PERF_TYPE_TRACEPOINT = 2
 PERF_FORMAT_GROUP = 1 << 3
 
-PATH_DEBUGFS_TRACING = '/sys/kernel/debug/tracing'
-PATH_DEBUGFS_KVM = '/sys/kernel/debug/kvm'
-
 
 class Group(object):
     """Represents a perf event group."""
@@ -376,8 +397,8 @@ class Event(object):
         self.syscall = self.libc.syscall
         self.name = name
         self.fd = None
-        self.setup_event(group, trace_cpu, trace_pid, trace_point,
-                         trace_filter, trace_set)
+        self._setup_event(group, trace_cpu, trace_pid, trace_point,
+                          trace_filter, trace_set)
 
     def __del__(self):
         """Closes the event's file descriptor.
@@ -390,7 +411,7 @@ class Event(object):
         if self.fd:
             os.close(self.fd)
 
-    def perf_event_open(self, attr, pid, cpu, group_fd, flags):
+    def _perf_event_open(self, attr, pid, cpu, group_fd, flags):
         """Wrapper for the sys_perf_evt_open() syscall.
 
         Used to set up performance events, returns a file descriptor or -1
@@ -409,7 +430,7 @@ class Event(object):
                             ctypes.c_int(pid), ctypes.c_int(cpu),
                             ctypes.c_int(group_fd), ctypes.c_long(flags))
 
-    def setup_event_attribute(self, trace_set, trace_point):
+    def _setup_event_attribute(self, trace_set, trace_point):
         """Returns an initialized ctype perf_event_attr struct."""
 
         id_path = os.path.join(PATH_DEBUGFS_TRACING, 'events', trace_set,
@@ -419,8 +440,8 @@ class Event(object):
         event_attr.config = int(open(id_path).read())
         return event_attr
 
-    def setup_event(self, group, trace_cpu, trace_pid, trace_point,
-                    trace_filter, trace_set):
+    def _setup_event(self, group, trace_cpu, trace_pid, trace_point,
+                     trace_filter, trace_set):
         """Sets up the perf event in Linux.
 
         Issues the syscall to register the event in the kernel and
@@ -428,7 +449,7 @@ class Event(object):
 
         """
 
-        event_attr = self.setup_event_attribute(trace_set, trace_point)
+        event_attr = self._setup_event_attribute(trace_set, trace_point)
 
         # First event will be group leader.
         group_leader = -1
@@ -437,8 +458,8 @@ class Event(object):
         if group.events:
             group_leader = group.events[0].fd
 
-        fd = self.perf_event_open(event_attr, trace_pid,
-                                  trace_cpu, group_leader, 0)
+        fd = self._perf_event_open(event_attr, trace_pid,
+                                   trace_cpu, group_leader, 0)
         if fd == -1:
             err = ctypes.get_errno()
             raise OSError(err, os.strerror(err),
@@ -475,6 +496,10 @@ class Event(object):
 
 class Provider(object):
     """Encapsulates functionalities used by all providers."""
+    def __init__(self, pid):
+        self.child_events = False
+        self.pid = pid
+
     @staticmethod
     def is_field_wanted(fields_filter, field):
         """Indicate whether field is valid according to fields_filter."""
@@ -500,12 +525,12 @@ class TracepointProvider(Provider):
     """
     def __init__(self, pid, fields_filter):
         self.group_leaders = []
-        self.filters = self.get_filters()
+        self.filters = self._get_filters()
         self.update_fields(fields_filter)
-        self.pid = pid
+        super(TracepointProvider, self).__init__(pid)
 
     @staticmethod
-    def get_filters():
+    def _get_filters():
         """Returns a dict of trace events, their filter ids and
         the values that can be filtered.
 
@@ -521,8 +546,8 @@ class TracepointProvider(Provider):
             filters['kvm_exit'] = ('exit_reason', ARCH.exit_reasons)
         return filters
 
-    def get_available_fields(self):
-        """Returns a list of available event's of format 'event name(filter
+    def _get_available_fields(self):
+        """Returns a list of available events of format 'event name(filter
         name)'.
 
         All available events have directories under
@@ -549,11 +574,12 @@ class TracepointProvider(Provider):
 
     def update_fields(self, fields_filter):
         """Refresh fields, applying fields_filter"""
-        self.fields = [field for field in self.get_available_fields()
-                       if self.is_field_wanted(fields_filter, field)]
+        self.fields = [field for field in self._get_available_fields()
+                       if self.is_field_wanted(fields_filter, field) or
+                       ARCH.tracepoint_is_child(field)]
 
     @staticmethod
-    def get_online_cpus():
+    def _get_online_cpus():
         """Returns a list of cpu id integers."""
         def parse_int_list(list_string):
             """Returns an int list from a string of comma separated integers and
@@ -575,17 +601,17 @@ class TracepointProvider(Provider):
             cpu_string = cpu_list.readline()
             return parse_int_list(cpu_string)
 
-    def setup_traces(self):
+    def _setup_traces(self):
         """Creates all event and group objects needed to be able to retrieve
         data."""
-        fields = self.get_available_fields()
+        fields = self._get_available_fields()
         if self._pid > 0:
             # Fetch list of all threads of the monitored pid, as qemu
             # starts a thread for each vcpu.
             path = os.path.join('/proc', str(self._pid), 'task')
             groupids = self.walkdir(path)[1]
         else:
-            groupids = self.get_online_cpus()
+            groupids = self._get_online_cpus()
 
         # The constant is needed as a buffer for python libs, std
         # streams and other files that the script opens.
@@ -663,7 +689,7 @@ class TracepointProvider(Provider):
         # The garbage collector will get rid of all Event/Group
         # objects and open files after removing the references.
         self.group_leaders = []
-        self.setup_traces()
+        self._setup_traces()
         self.fields = self._fields
 
     def read(self, by_guest=0):
@@ -671,8 +697,12 @@ class TracepointProvider(Provider):
         ret = defaultdict(int)
         for group in self.group_leaders:
             for name, val in group.read().items():
-                if name in self._fields:
-                    ret[name] += val
+                if name not in self._fields:
+                    continue
+                parent = ARCH.tracepoint_is_child(name)
+                if parent:
+                    name += ' ' + parent
+                ret[name] += val
         return ret
 
     def reset(self):
@@ -690,11 +720,11 @@ class DebugfsProvider(Provider):
         self._baseline = {}
         self.do_read = True
         self.paths = []
-        self.pid = pid
+        super(DebugfsProvider, self).__init__(pid)
         if include_past:
-            self.restore()
+            self._restore()
 
-    def get_available_fields(self):
+    def _get_available_fields(self):
         """"Returns a list of available fields.
 
         The fields are all available KVM debugfs files
@@ -704,8 +734,9 @@ class DebugfsProvider(Provider):
 
     def update_fields(self, fields_filter):
         """Refresh fields, applying fields_filter"""
-        self._fields = [field for field in self.get_available_fields()
-                        if self.is_field_wanted(fields_filter, field)]
+        self._fields = [field for field in self._get_available_fields()
+                        if self.is_field_wanted(fields_filter, field) or
+                        ARCH.debugfs_is_child(field)]
 
     @property
     def fields(self):
@@ -758,7 +789,7 @@ class DebugfsProvider(Provider):
                     paths.append(dir)
         for path in paths:
             for field in self._fields:
-                value = self.read_field(field, path)
+                value = self._read_field(field, path)
                 key = path + field
                 if reset == 1:
                     self._baseline[key] = value
@@ -766,20 +797,21 @@ class DebugfsProvider(Provider):
                     self._baseline[key] = 0
                 if self._baseline.get(key, -1) == -1:
                     self._baseline[key] = value
-                increment = (results.get(field, 0) + value -
-                             self._baseline.get(key, 0))
-                if by_guest:
-                    pid = key.split('-')[0]
-                    if pid in results:
-                        results[pid] += increment
-                    else:
-                        results[pid] = increment
+                parent = ARCH.debugfs_is_child(field)
+                if parent:
+                    field = field + ' ' + parent
+                else:
+                    if by_guest:
+                        field = key.split('-')[0]    # set 'field' to 'pid'
+                increment = value - self._baseline.get(key, 0)
+                if field in results:
+                    results[field] += increment
                 else:
                     results[field] = increment
 
         return results
 
-    def read_field(self, field, path):
+    def _read_field(self, field, path):
         """Returns the value of a single field from a specific VM."""
         try:
             return int(open(os.path.join(PATH_DEBUGFS_KVM,
@@ -794,12 +826,15 @@ class DebugfsProvider(Provider):
         self._baseline = {}
         self.read(1)
 
-    def restore(self):
+    def _restore(self):
         """Reset field counters"""
         self._baseline = {}
         self.read(2)
 
 
+EventStat = namedtuple('EventStat', ['value', 'delta'])
+
+
 class Stats(object):
     """Manages the data providers and the data they provide.
 
@@ -808,13 +843,13 @@ class Stats(object):
 
     """
     def __init__(self, options):
-        self.providers = self.get_providers(options)
+        self.providers = self._get_providers(options)
         self._pid_filter = options.pid
         self._fields_filter = options.fields
         self.values = {}
+        self._child_events = False
 
-    @staticmethod
-    def get_providers(options):
+    def _get_providers(self, options):
         """Returns a list of data providers depending on the passed options."""
         providers = []
 
@@ -826,7 +861,7 @@ class Stats(object):
 
         return providers
 
-    def update_provider_filters(self):
+    def _update_provider_filters(self):
         """Propagates fields filters to providers."""
         # As we reset the counters when updating the fields we can
         # also clear the cache of old values.
@@ -847,7 +882,7 @@ class Stats(object):
     def fields_filter(self, fields_filter):
         if fields_filter != self._fields_filter:
             self._fields_filter = fields_filter
-            self.update_provider_filters()
+            self._update_provider_filters()
 
     @property
     def pid_filter(self):
@@ -861,16 +896,33 @@ class Stats(object):
             for provider in self.providers:
                 provider.pid = self._pid_filter
 
+    @property
+    def child_events(self):
+        return self._child_events
+
+    @child_events.setter
+    def child_events(self, val):
+        self._child_events = val
+        for provider in self.providers:
+            provider.child_events = val
+
     def get(self, by_guest=0):
         """Returns a dict with field -> (value, delta to last value) of all
-        provider data."""
+        provider data.
+        Key formats:
+          * plain: 'key' is event name
+          * child-parent: 'key' is in format '<child> <parent>'
+          * pid: 'key' is the pid of the guest, and the record contains the
+               aggregated event data
+        These formats are generated by the providers, and handled in class TUI.
+        """
         for provider in self.providers:
             new = provider.read(by_guest=by_guest)
-            for key in new if by_guest else provider.fields:
-                oldval = self.values.get(key, (0, 0))[0]
+            for key in new:
+                oldval = self.values.get(key, EventStat(0, 0)).value
                 newval = new.get(key, 0)
                 newdelta = newval - oldval
-                self.values[key] = (newval, newdelta)
+                self.values[key] = EventStat(newval, newdelta)
         return self.values
 
     def toggle_display_guests(self, to_pid):
@@ -899,10 +951,10 @@ class Stats(object):
         self.get(to_pid)
         return 0
 
+
 DELAY_DEFAULT = 3.0
 MAX_GUEST_NAME_LEN = 48
 MAX_REGEX_LEN = 44
-DEFAULT_REGEX = r'^[^\(]*$'
 SORT_DEFAULT = 0
 
 
@@ -969,7 +1021,7 @@ class Tui(object):
 
         return res
 
-    def print_all_gnames(self, row):
+    def _print_all_gnames(self, row):
         """Print a list of all running guests along with their pids."""
         self.screen.addstr(row, 2, '%8s  %-60s' %
                            ('Pid', 'Guest Name (fuzzy list, might be '
@@ -1032,19 +1084,13 @@ class Tui(object):
 
         return name
 
-    def update_drilldown(self):
-        """Sets or removes a filter that only allows fields without braces."""
-        if not self.stats.fields_filter:
-            self.stats.fields_filter = DEFAULT_REGEX
-
-        elif self.stats.fields_filter == DEFAULT_REGEX:
-            self.stats.fields_filter = None
-
-    def update_pid(self, pid):
+    def _update_pid(self, pid):
         """Propagates pid selection to stats object."""
+        self.screen.addstr(4, 1, 'Updating pid filter...')
+        self.screen.refresh()
         self.stats.pid_filter = pid
 
-    def refresh_header(self, pid=None):
+    def _refresh_header(self, pid=None):
         """Refreshes the header."""
         if pid is None:
             pid = self.stats.pid_filter
@@ -1059,8 +1105,7 @@ class Tui(object):
                                .format(pid, gname), curses.A_BOLD)
         else:
             self.screen.addstr(0, 0, 'kvm statistics - summary', curses.A_BOLD)
-        if self.stats.fields_filter and self.stats.fields_filter \
-           != DEFAULT_REGEX:
+        if self.stats.fields_filter:
             regex = self.stats.fields_filter
             if len(regex) > MAX_REGEX_LEN:
                 regex = regex[:MAX_REGEX_LEN] + '...'
@@ -1075,56 +1120,99 @@ class Tui(object):
         self.screen.addstr(4, 1, 'Collecting data...')
         self.screen.refresh()
 
-    def refresh_body(self, sleeptime):
+    def _refresh_body(self, sleeptime):
+        def is_child_field(field):
+            return field.find('(') != -1
+
+        def insert_child(sorted_items, child, values, parent):
+            num = len(sorted_items)
+            for i in range(0, num):
+                # only add child if parent is present
+                if parent.startswith(sorted_items[i][0]):
+                    sorted_items.insert(i + 1, ('  ' + child, values))
+
+        def get_sorted_events(self, stats):
+            """ separate parent and child events """
+            if self._sorting == SORT_DEFAULT:
+                def sortkey((_k, v)):
+                    # sort by (delta value, overall value)
+                    return (v.delta, v.value)
+            else:
+                def sortkey((_k, v)):
+                    # sort by overall value
+                    return v.value
+
+            childs = []
+            sorted_items = []
+            # we can't rule out child events to appear prior to parents even
+            # when sorted - separate out all children first, and add in later
+            for key, values in sorted(stats.items(), key=sortkey,
+                                      reverse=True):
+                if values == (0, 0):
+                    continue
+                if key.find(' ') != -1:
+                    if not self.stats.child_events:
+                        continue
+                    childs.insert(0, (key, values))
+                else:
+                    sorted_items.append((key, values))
+            if self.stats.child_events:
+                for key, values in childs:
+                    (child, parent) = key.split(' ')
+                    insert_child(sorted_items, child, values, parent)
+
+            return sorted_items
+
         row = 3
         self.screen.move(row, 0)
         self.screen.clrtobot()
         stats = self.stats.get(self._display_guests)
-
-        def sortCurAvg(x):
-            # sort by current events if available
-            if stats[x][1]:
-                return (-stats[x][1], -stats[x][0])
+        total = 0.
+        ctotal = 0.
+        for key, values in stats.items():
+            if self._display_guests:
+                if self.get_gname_from_pid(key):
+                    total += values.value
+                continue
+            if not key.find(' ') != -1:
+                total += values.value
             else:
-                return (0, -stats[x][0])
+                ctotal += values.value
+        if total == 0.:
+            # we don't have any fields, or all non-child events are filtered
+            total = ctotal
 
-        def sortTotal(x):
-            # sort by totals
-            return (0, -stats[x][0])
-        total = 0.
-        for key in stats.keys():
-            if key.find('(') is -1:
-                total += stats[key][0]
-        if self._sorting == SORT_DEFAULT:
-            sortkey = sortCurAvg
-        else:
-            sortkey = sortTotal
+        # print events
         tavg = 0
-        for key in sorted(stats.keys(), key=sortkey):
-            if row >= self.screen.getmaxyx()[0] - 1:
-                break
-            values = stats[key]
-            if not values[0] and not values[1]:
+        tcur = 0
+        for key, values in get_sorted_events(self, stats):
+            if row >= self.screen.getmaxyx()[0] - 1 or values == (0, 0):
                 break
-            if values[0] is not None:
-                cur = int(round(values[1] / sleeptime)) if values[1] else ''
-                if self._display_guests:
-                    key = self.get_gname_from_pid(key)
-                self.screen.addstr(row, 1, '%-40s %10d%7.1f %8s' %
-                                   (key, values[0], values[0] * 100 / total,
-                                    cur))
-                if cur is not '' and key.find('(') is -1:
-                    tavg += cur
+            if self._display_guests:
+                key = self.get_gname_from_pid(key)
+                if not key:
+                    continue
+            cur = int(round(values.delta / sleeptime)) if values.delta else ''
+            if key[0] != ' ':
+                if values.delta:
+                    tcur += values.delta
+                ptotal = values.value
+                ltotal = total
+            else:
+                ltotal = ptotal
+            self.screen.addstr(row, 1, '%-40s %10d%7.1f %8s' % (key,
+                               values.value,
+                               values.value * 100 / float(ltotal), cur))
             row += 1
         if row == 3:
             self.screen.addstr(4, 1, 'No matching events reported yet')
-        else:
+        if row > 4:
+            tavg = int(round(tcur / sleeptime)) if tcur > 0 else ''
             self.screen.addstr(row, 1, '%-40s %10d        %8s' %
-                               ('Total', total, tavg if tavg else ''),
-                               curses.A_BOLD)
+                               ('Total', total, tavg), curses.A_BOLD)
         self.screen.refresh()
 
-    def show_msg(self, text):
+    def _show_msg(self, text):
         """Display message centered text and exit on key press"""
         hint = 'Press any key to continue'
         curses.cbreak()
@@ -1139,16 +1227,16 @@ class Tui(object):
                            curses.A_STANDOUT)
         self.screen.getkey()
 
-    def show_help_interactive(self):
+    def _show_help_interactive(self):
         """Display help with list of interactive commands"""
         msg = ('   b     toggle events by guests (debugfs only, honors'
                ' filters)',
                '   c     clear filter',
                '   f     filter by regular expression',
-               '   g     filter by guest name',
+               '   g     filter by guest name/PID',
                '   h     display interactive commands reference',
                '   o     toggle sorting order (Total vs CurAvg/s)',
-               '   p     filter by PID',
+               '   p     filter by guest name/PID',
                '   q     quit',
                '   r     reset stats',
                '   s     set update interval',
@@ -1165,14 +1253,15 @@ class Tui(object):
             self.screen.addstr(row, 0, line)
             row += 1
         self.screen.getkey()
-        self.refresh_header()
+        self._refresh_header()
 
-    def show_filter_selection(self):
+    def _show_filter_selection(self):
         """Draws filter selection mask.
 
         Asks for a valid regex and sets the fields filter accordingly.
 
         """
+        msg = ''
         while True:
             self.screen.erase()
             self.screen.addstr(0, 0,
@@ -1181,61 +1270,25 @@ class Tui(object):
             self.screen.addstr(2, 0,
                                "Current regex: {0}"
                                .format(self.stats.fields_filter))
+            self.screen.addstr(5, 0, msg)
             self.screen.addstr(3, 0, "New regex: ")
             curses.echo()
             regex = self.screen.getstr().decode(ENCODING)
             curses.noecho()
             if len(regex) == 0:
-                self.stats.fields_filter = DEFAULT_REGEX
-                self.refresh_header()
+                self.stats.fields_filter = ''
+                self._refresh_header()
                 return
             try:
                 re.compile(regex)
                 self.stats.fields_filter = regex
-                self.refresh_header()
+                self._refresh_header()
                 return
             except re.error:
+                msg = '"' + regex + '": Not a valid regular expression'
                 continue
 
-    def show_vm_selection_by_pid(self):
-        """Draws PID selection mask.
-
-        Asks for a pid until a valid pid or 0 has been entered.
-
-        """
-        msg = ''
-        while True:
-            self.screen.erase()
-            self.screen.addstr(0, 0,
-                               'Show statistics for specific pid.',
-                               curses.A_BOLD)
-            self.screen.addstr(1, 0,
-                               'This might limit the shown data to the trace '
-                               'statistics.')
-            self.screen.addstr(5, 0, msg)
-            self.print_all_gnames(7)
-
-            curses.echo()
-            self.screen.addstr(3, 0, "Pid [0 or pid]: ")
-            pid = self.screen.getstr().decode(ENCODING)
-            curses.noecho()
-
-            try:
-                if len(pid) > 0:
-                    pid = int(pid)
-                    if pid != 0 and not os.path.isdir(os.path.join('/proc/',
-                                                                   str(pid))):
-                        msg = '"' + str(pid) + '": Not a running process'
-                        continue
-                else:
-                    pid = 0
-                self.refresh_header(pid)
-                self.update_pid(pid)
-                break
-            except ValueError:
-                msg = '"' + str(pid) + '": Not a valid pid'
-
-    def show_set_update_interval(self):
+    def _show_set_update_interval(self):
         """Draws update interval selection mask."""
         msg = ''
         while True:
@@ -1265,60 +1318,67 @@ class Tui(object):
 
             except ValueError:
                 msg = '"' + str(val) + '": Invalid value'
-        self.refresh_header()
+        self._refresh_header()
 
-    def show_vm_selection_by_guest_name(self):
+    def _show_vm_selection_by_guest(self):
         """Draws guest selection mask.
 
-        Asks for a guest name until a valid guest name or '' is entered.
+        Asks for a guest name or pid until a valid guest name or '' is entered.
 
         """
         msg = ''
         while True:
             self.screen.erase()
             self.screen.addstr(0, 0,
-                               'Show statistics for specific guest.',
+                               'Show statistics for specific guest or pid.',
                                curses.A_BOLD)
             self.screen.addstr(1, 0,
                                'This might limit the shown data to the trace '
                                'statistics.')
             self.screen.addstr(5, 0, msg)
-            self.print_all_gnames(7)
+            self._print_all_gnames(7)
             curses.echo()
-            self.screen.addstr(3, 0, "Guest [ENTER or guest]: ")
-            gname = self.screen.getstr().decode(ENCODING)
+            curses.curs_set(1)
+            self.screen.addstr(3, 0, "Guest or pid [ENTER exits]: ")
+            guest = self.screen.getstr().decode(ENCODING)
             curses.noecho()
 
-            if not gname:
-                self.refresh_header(0)
-                self.update_pid(0)
+            pid = 0
+            if not guest or guest == '0':
                 break
-            else:
-                pids = []
-                try:
-                    pids = self.get_pid_from_gname(gname)
-                except:
-                    msg = '"' + gname + '": Internal error while searching, ' \
-                          'use pid filter instead'
-                    continue
-                if len(pids) == 0:
-                    msg = '"' + gname + '": Not an active guest'
+            if guest.isdigit():
+                if not os.path.isdir(os.path.join('/proc/', guest)):
+                    msg = '"' + guest + '": Not a running process'
                     continue
-                if len(pids) > 1:
-                    msg = '"' + gname + '": Multiple matches found, use pid ' \
-                          'filter instead'
-                    continue
-                self.refresh_header(pids[0])
-                self.update_pid(pids[0])
+                pid = int(guest)
                 break
+            pids = []
+            try:
+                pids = self.get_pid_from_gname(guest)
+            except:
+                msg = '"' + guest + '": Internal error while searching, ' \
+                      'use pid filter instead'
+                continue
+            if len(pids) == 0:
+                msg = '"' + guest + '": Not an active guest'
+                continue
+            if len(pids) > 1:
+                msg = '"' + guest + '": Multiple matches found, use pid ' \
+                      'filter instead'
+                continue
+            pid = pids[0]
+            break
+        curses.curs_set(0)
+        self._refresh_header(pid)
+        self._update_pid(pid)
 
     def show_stats(self):
         """Refreshes the screen and processes user input."""
         sleeptime = self._delay_initial
-        self.refresh_header()
+        self._refresh_header()
         start = 0.0  # result based on init value never appears on screen
         while True:
-            self.refresh_body(time.time() - start)
+            self._refresh_body(time.time() - start)
             curses.halfdelay(int(sleeptime * 10))
             start = time.time()
             sleeptime = self._delay_regular
@@ -1327,47 +1387,39 @@ class Tui(object):
                 if char == 'b':
                     self._display_guests = not self._display_guests
                     if self.stats.toggle_display_guests(self._display_guests):
-                        self.show_msg(['Command not available with tracepoints'
-                                       ' enabled', 'Restart with debugfs only '
-                                       '(see option \'-d\') and try again!'])
+                        self._show_msg(['Command not available with '
+                                        'tracepoints enabled', 'Restart with '
+                                        'debugfs only (see option \'-d\') and '
+                                        'try again!'])
                         self._display_guests = not self._display_guests
-                    self.refresh_header()
+                    self._refresh_header()
                 if char == 'c':
-                    self.stats.fields_filter = DEFAULT_REGEX
-                    self.refresh_header(0)
-                    self.update_pid(0)
+                    self.stats.fields_filter = ''
+                    self._refresh_header(0)
+                    self._update_pid(0)
                 if char == 'f':
                     curses.curs_set(1)
-                    self.show_filter_selection()
+                    self._show_filter_selection()
                     curses.curs_set(0)
                     sleeptime = self._delay_initial
-                if char == 'g':
-                    curses.curs_set(1)
-                    self.show_vm_selection_by_guest_name()
-                    curses.curs_set(0)
+                if char == 'g' or char == 'p':
+                    self._show_vm_selection_by_guest()
                     sleeptime = self._delay_initial
                 if char == 'h':
-                    self.show_help_interactive()
+                    self._show_help_interactive()
                 if char == 'o':
                     self._sorting = not self._sorting
-                if char == 'p':
-                    curses.curs_set(1)
-                    self.show_vm_selection_by_pid()
-                    curses.curs_set(0)
-                    sleeptime = self._delay_initial
                 if char == 'q':
                     break
                 if char == 'r':
                     self.stats.reset()
                 if char == 's':
                     curses.curs_set(1)
-                    self.show_set_update_interval()
+                    self._show_set_update_interval()
                     curses.curs_set(0)
                     sleeptime = self._delay_initial
                 if char == 'x':
-                    self.update_drilldown()
-                    # prevents display of current values on next refresh
-                    self.stats.get(self._display_guests)
+                    self.stats.child_events = not self.stats.child_events
             except KeyboardInterrupt:
                 break
             except curses.error:
@@ -1380,9 +1432,9 @@ def batch(stats):
         s = stats.get()
         time.sleep(1)
         s = stats.get()
-        for key in sorted(s.keys()):
-            values = s[key]
-            print('%-42s%10d%10d' % (key, values[0], values[1]))
+        for key, values in sorted(s.items()):
+            print('%-42s%10d%10d' % (key.split(' ')[0], values.value,
+                  values.delta))
     except KeyboardInterrupt:
         pass
 
@@ -1392,14 +1444,14 @@ def log(stats):
     keys = sorted(stats.get().keys())
 
     def banner():
-        for k in keys:
-            print(k, end=' ')
+        for key in keys:
+            print(key.split(' ')[0], end=' ')
         print()
 
     def statline():
         s = stats.get()
-        for k in keys:
-            print(' %9d' % s[k][1], end=' ')
+        for key in keys:
+            print(' %9d' % s[key].delta, end=' ')
         print()
     line = 0
     banner_repeat = 20
@@ -1504,7 +1556,7 @@ Press any other key to refresh statistics immediately.
                          )
     optparser.add_option('-f', '--fields',
                          action='store',
-                         default=DEFAULT_REGEX,
+                         default='',
                          dest='fields',
                          help='''fields to display (regex)
                                  "-f help" for a list of available events''',
@@ -1539,17 +1591,6 @@ Press any other key to refresh statistics immediately.
 
 def check_access(options):
     """Exits if the current user can't access all needed directories."""
-    if not os.path.exists('/sys/kernel/debug'):
-        sys.stderr.write('Please enable CONFIG_DEBUG_FS in your kernel.')
-        sys.exit(1)
-
-    if not os.path.exists(PATH_DEBUGFS_KVM):
-        sys.stderr.write("Please make sure, that debugfs is mounted and "
-                         "readable by the current user:\n"
-                         "('mount -t debugfs debugfs /sys/kernel/debug')\n"
-                         "Also ensure, that the kvm modules are loaded.\n")
-        sys.exit(1)
-
     if not os.path.exists(PATH_DEBUGFS_TRACING) and (options.tracepoints or
                                                      not options.debugfs):
         sys.stderr.write("Please enable CONFIG_TRACING in your kernel "
@@ -1567,7 +1608,33 @@ def check_access(options):
     return options
 
 
+def assign_globals():
+    global PATH_DEBUGFS_KVM
+    global PATH_DEBUGFS_TRACING
+
+    debugfs = ''
+    for line in file('/proc/mounts'):
+        if line.split(' ')[0] == 'debugfs':
+            debugfs = line.split(' ')[1]
+            break
+    if debugfs == '':
+        sys.stderr.write("Please make sure that CONFIG_DEBUG_FS is enabled in "
+                         "your kernel, mounted and\nreadable by the current "
+                         "user:\n"
+                         "('mount -t debugfs debugfs /sys/kernel/debug')\n")
+        sys.exit(1)
+
+    PATH_DEBUGFS_KVM = os.path.join(debugfs, 'kvm')
+    PATH_DEBUGFS_TRACING = os.path.join(debugfs, 'tracing')
+
+    if not os.path.exists(PATH_DEBUGFS_KVM):
+        sys.stderr.write("Please make sure that CONFIG_KVM is enabled in "
+                         "your kernel and that the modules are loaded.\n")
+        sys.exit(1)
+
+
 def main():
+    assign_globals()
     options = get_options()
     options = check_access(options)
 
diff --git a/tools/kvm/kvm_stat/kvm_stat.txt b/tools/kvm/kvm_stat/kvm_stat.txt
index b5b3810c9e94..0811d860fe75 100644
--- a/tools/kvm/kvm_stat/kvm_stat.txt
+++ b/tools/kvm/kvm_stat/kvm_stat.txt
@@ -35,13 +35,13 @@ INTERACTIVE COMMANDS
 
 *f*::   filter by regular expression
 
-*g*::   filter by guest name
+*g*::   filter by guest name/PID
 
 *h*::   display interactive commands reference
 
 *o*::   toggle sorting order (Total vs CurAvg/s)
 
-*p*::   filter by PID
+*p*::   filter by guest name/PID
 
 *q*::   quit
 
diff --git a/tools/laptop/freefall/Makefile b/tools/laptop/freefall/Makefile
index 5f758c489a20..b572d94255f6 100644
--- a/tools/laptop/freefall/Makefile
+++ b/tools/laptop/freefall/Makefile
@@ -2,7 +2,6 @@
 PREFIX ?= /usr
 SBINDIR ?= sbin
 INSTALL ?= install
-CC = $(CROSS_COMPILE)gcc
 
 TARGET = freefall
 
diff --git a/tools/leds/Makefile b/tools/leds/Makefile
index c379af003807..7b6bed13daaa 100644
--- a/tools/leds/Makefile
+++ b/tools/leds/Makefile
@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 # Makefile for LEDs tools
 
-CC = $(CROSS_COMPILE)gcc
 CFLAGS = -Wall -Wextra -g -I../../include/uapi
 
 all: uledmon led_hw_brightness_mon
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 97073d649c1a..5bbbf285af74 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -1060,11 +1060,12 @@ bpf_program__reloc_text(struct bpf_program *prog, struct bpf_object *obj,
                 prog->insns = new_insn;
                 prog->main_prog_cnt = prog->insns_cnt;
                 prog->insns_cnt = new_cnt;
+                pr_debug("added %zd insn from %s to prog %s\n",
+                         text->insns_cnt, text->section_name,
+                         prog->section_name);
         }
         insn = &prog->insns[relo->insn_idx];
         insn->imm += prog->main_prog_cnt - relo->insn_idx;
-        pr_debug("added %zd insn from %s to prog %s\n",
-                 text->insns_cnt, text->section_name, prog->section_name);
         return 0;
 }
 
diff --git a/tools/objtool/builtin-check.c b/tools/objtool/builtin-check.c
index 57254f5b2779..694abc628e9b 100644
--- a/tools/objtool/builtin-check.c
+++ b/tools/objtool/builtin-check.c
@@ -29,7 +29,7 @@
 #include "builtin.h"
 #include "check.h"
 
-bool no_fp, no_unreachable;
+bool no_fp, no_unreachable, retpoline, module;
 
 static const char * const check_usage[] = {
         "objtool check [<options>] file.o",
@@ -39,6 +39,8 @@ static const char * const check_usage[] = {
 const struct option check_options[] = {
         OPT_BOOLEAN('f', "no-fp", &no_fp, "Skip frame pointer validation"),
         OPT_BOOLEAN('u', "no-unreachable", &no_unreachable, "Skip 'unreachable instruction' warnings"),
+        OPT_BOOLEAN('r', "retpoline", &retpoline, "Validate retpoline assumptions"),
+        OPT_BOOLEAN('m', "module", &module, "Indicates the object will be part of a kernel module"),
         OPT_END(),
 };
 
@@ -53,5 +55,5 @@ int cmd_check(int argc, const char **argv)
 
         objname = argv[0];
 
-        return check(objname, no_fp, no_unreachable, false);
+        return check(objname, false);
 }
diff --git a/tools/objtool/builtin-orc.c b/tools/objtool/builtin-orc.c
index 91e8e19ff5e0..77ea2b97117d 100644
--- a/tools/objtool/builtin-orc.c
+++ b/tools/objtool/builtin-orc.c
@@ -25,7 +25,6 @@
  */
 
 #include <string.h>
-#include <subcmd/parse-options.h>
 #include "builtin.h"
 #include "check.h"
 
@@ -36,9 +35,6 @@ static const char *orc_usage[] = {
         NULL,
 };
 
-extern const struct option check_options[];
-extern bool no_fp, no_unreachable;
-
 int cmd_orc(int argc, const char **argv)
 {
         const char *objname;
@@ -54,7 +50,7 @@ int cmd_orc(int argc, const char **argv)
 
                 objname = argv[0];
 
-                return check(objname, no_fp, no_unreachable, true);
+                return check(objname, true);
         }
 
         if (!strcmp(argv[0], "dump")) {
diff --git a/tools/objtool/builtin.h b/tools/objtool/builtin.h
index dd526067fed5..28ff40e19a14 100644
--- a/tools/objtool/builtin.h
+++ b/tools/objtool/builtin.h
@@ -17,6 +17,11 @@
 #ifndef _BUILTIN_H
 #define _BUILTIN_H
 
+#include <subcmd/parse-options.h>
+
+extern const struct option check_options[];
+extern bool no_fp, no_unreachable, retpoline, module;
+
 extern int cmd_check(int argc, const char **argv);
 extern int cmd_orc(int argc, const char **argv);
 
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index b00b1896547e..92b6a2c21631 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -18,6 +18,7 @@
 #include <string.h>
 #include <stdlib.h>
 
+#include "builtin.h"
 #include "check.h"
 #include "elf.h"
 #include "special.h"
@@ -33,7 +34,6 @@ struct alternative {
 };
 
 const char *objname;
-static bool no_fp;
 struct cfi_state initial_func_cfi;
 
 struct instruction *find_insn(struct objtool_file *file,
@@ -497,6 +497,7 @@ static int add_jump_destinations(struct objtool_file *file)
                          * disguise, so convert them accordingly.
                          */
                         insn->type = INSN_JUMP_DYNAMIC;
+                        insn->retpoline_safe = true;
                         continue;
                 } else {
                         /* sibling call */
@@ -548,7 +549,8 @@ static int add_call_destinations(struct objtool_file *file)
                         if (!insn->call_dest && !insn->ignore) {
                                 WARN_FUNC("unsupported intra-function call",
                                           insn->sec, insn->offset);
-                                WARN("If this is a retpoline, please patch it in with alternatives and annotate it with ANNOTATE_NOSPEC_ALTERNATIVE.");
+                                if (retpoline)
+                                        WARN("If this is a retpoline, please patch it in with alternatives and annotate it with ANNOTATE_NOSPEC_ALTERNATIVE.");
                                 return -1;
                         }
 
@@ -852,8 +854,14 @@ static int add_switch_table(struct objtool_file *file, struct symbol *func,
  *    This is a fairly uncommon pattern which is new for GCC 6.  As of this
  *    writing, there are 11 occurrences of it in the allmodconfig kernel.
  *
+ *    As of GCC 7 there are quite a few more of these and the 'in between' code
+ *    is significant. Esp. with KASAN enabled some of the code between the mov
+ *    and jmpq uses .rodata itself, which can confuse things.
+ *
  *    TODO: Once we have DWARF CFI and smarter instruction decoding logic,
  *    ensure the same register is used in the mov and jump instructions.
+ *
+ *    NOTE: RETPOLINE made it harder still to decode dynamic jumps.
  */
 static struct rela *find_switch_table(struct objtool_file *file,
                                       struct symbol *func,
@@ -875,12 +883,25 @@ static struct rela *find_switch_table(struct objtool_file *file,
                                                 text_rela->addend + 4);
                 if (!rodata_rela)
                         return NULL;
+
                 file->ignore_unreachables = true;
                 return rodata_rela;
         }
 
         /* case 3 */
-        func_for_each_insn_continue_reverse(file, func, insn) {
+        /*
+         * Backward search using the @first_jump_src links, these help avoid
+         * much of the 'in between' code. Which avoids us getting confused by
+         * it.
+         */
+        for (insn = list_prev_entry(insn, list);
+
+             &insn->list != &file->insn_list &&
+             insn->sec == func->sec &&
+             insn->offset >= func->offset;
+
+             insn = insn->first_jump_src ?: list_prev_entry(insn, list)) {
+
                 if (insn->type == INSN_JUMP_DYNAMIC)
                         break;
 
@@ -904,20 +925,42 @@ static struct rela *find_switch_table(struct objtool_file *file,
                 if (find_symbol_containing(file->rodata, text_rela->addend))
                         continue;
 
-                return find_rela_by_dest(file->rodata, text_rela->addend);
+                rodata_rela = find_rela_by_dest(file->rodata, text_rela->addend);
+                if (!rodata_rela)
+                        continue;
+
+                return rodata_rela;
         }
 
         return NULL;
 }
 
+
 static int add_func_switch_tables(struct objtool_file *file,
                                   struct symbol *func)
 {
-        struct instruction *insn, *prev_jump = NULL;
+        struct instruction *insn, *last = NULL, *prev_jump = NULL;
         struct rela *rela, *prev_rela = NULL;
         int ret;
 
         func_for_each_insn(file, func, insn) {
+                if (!last)
+                        last = insn;
+
+                /*
+                 * Store back-pointers for unconditional forward jumps such
+                 * that find_switch_table() can back-track using those and
+                 * avoid some potentially confusing code.
+                 */
+                if (insn->type == INSN_JUMP_UNCONDITIONAL && insn->jump_dest &&
+                    insn->offset > last->offset &&
+                    insn->jump_dest->offset > insn->offset &&
+                    !insn->jump_dest->first_jump_src) {
+
+                        insn->jump_dest->first_jump_src = insn;
+                        last = insn->jump_dest;
+                }
+
                 if (insn->type != INSN_JUMP_DYNAMIC)
                         continue;
 
@@ -1071,6 +1114,41 @@ static int read_unwind_hints(struct objtool_file *file)
         return 0;
 }
 
+static int read_retpoline_hints(struct objtool_file *file)
+{
+        struct section *sec;
+        struct instruction *insn;
+        struct rela *rela;
+
+        sec = find_section_by_name(file->elf, ".rela.discard.retpoline_safe");
+        if (!sec)
+                return 0;
+
+        list_for_each_entry(rela, &sec->rela_list, list) {
+                if (rela->sym->type != STT_SECTION) {
+                        WARN("unexpected relocation symbol type in %s", sec->name);
+                        return -1;
+                }
+
+                insn = find_insn(file, rela->sym->sec, rela->addend);
+                if (!insn) {
+                        WARN("bad .discard.retpoline_safe entry");
+                        return -1;
+                }
+
+                if (insn->type != INSN_JUMP_DYNAMIC &&
+                    insn->type != INSN_CALL_DYNAMIC) {
+                        WARN_FUNC("retpoline_safe hint not an indirect jump/call",
+                                  insn->sec, insn->offset);
+                        return -1;
+                }
+
+                insn->retpoline_safe = true;
+        }
+
+        return 0;
+}
+
 static int decode_sections(struct objtool_file *file)
 {
         int ret;
@@ -1109,6 +1187,10 @@ static int decode_sections(struct objtool_file *file)
         if (ret)
                 return ret;
 
+        ret = read_retpoline_hints(file);
+        if (ret)
+                return ret;
+
         return 0;
 }
 
@@ -1854,6 +1936,38 @@ static int validate_unwind_hints(struct objtool_file *file)
         return warnings;
 }
 
+static int validate_retpoline(struct objtool_file *file)
+{
+        struct instruction *insn;
+        int warnings = 0;
+
+        for_each_insn(file, insn) {
+                if (insn->type != INSN_JUMP_DYNAMIC &&
+                    insn->type != INSN_CALL_DYNAMIC)
+                        continue;
+
+                if (insn->retpoline_safe)
+                        continue;
+
+                /*
+                 * .init.text code is ran before userspace and thus doesn't
+                 * strictly need retpolines, except for modules which are
+                 * loaded late, they very much do need retpoline in their
+                 * .init.text
+                 */
+                if (!strcmp(insn->sec->name, ".init.text") && !module)
+                        continue;
+
+                WARN_FUNC("indirect %s found in RETPOLINE build",
+                          insn->sec, insn->offset,
+                          insn->type == INSN_JUMP_DYNAMIC ? "jump" : "call");
+
+                warnings++;
+        }
+
+        return warnings;
+}
+
 static bool is_kasan_insn(struct instruction *insn)
 {
         return (insn->type == INSN_CALL &&
@@ -1899,13 +2013,19 @@ static bool ignore_unreachable_insn(struct instruction *insn)
                 if (is_kasan_insn(insn) || is_ubsan_insn(insn))
                         return true;
 
-                if (insn->type == INSN_JUMP_UNCONDITIONAL && insn->jump_dest) {
-                        insn = insn->jump_dest;
-                        continue;
+                if (insn->type == INSN_JUMP_UNCONDITIONAL) {
+                        if (insn->jump_dest &&
+                            insn->jump_dest->func == insn->func) {
+                                insn = insn->jump_dest;
+                                continue;
+                        }
+
+                        break;
                 }
 
                 if (insn->offset + insn->len >= insn->func->offset + insn->func->len)
                         break;
+
                 insn = list_next_entry(insn, list);
         }
 
@@ -1979,13 +2099,12 @@ static void cleanup(struct objtool_file *file)
         elf_close(file->elf);
 }
 
-int check(const char *_objname, bool _no_fp, bool no_unreachable, bool orc)
+int check(const char *_objname, bool orc)
 {
         struct objtool_file file;
         int ret, warnings = 0;
 
         objname = _objname;
-        no_fp = _no_fp;
 
         file.elf = elf_open(objname, orc ? O_RDWR : O_RDONLY);
         if (!file.elf)
@@ -2009,6 +2128,13 @@ int check(const char *_objname, bool _no_fp, bool no_unreachable, bool orc)
         if (list_empty(&file.insn_list))
                 goto out;
 
+        if (retpoline) {
+                ret = validate_retpoline(&file);
+                if (ret < 0)
+                        return ret;
+                warnings += ret;
+        }
+
         ret = validate_functions(&file);
         if (ret < 0)
                 goto out;
diff --git a/tools/objtool/check.h b/tools/objtool/check.h
index dbadb304a410..c6b68fcb926f 100644
--- a/tools/objtool/check.h
+++ b/tools/objtool/check.h
@@ -45,8 +45,10 @@ struct instruction {
         unsigned char type;
         unsigned long immediate;
         bool alt_group, visited, dead_end, ignore, hint, save, restore, ignore_alts;
+        bool retpoline_safe;
         struct symbol *call_dest;
         struct instruction *jump_dest;
+        struct instruction *first_jump_src;
         struct list_head alts;
         struct symbol *func;
         struct stack_op stack_op;
@@ -62,7 +64,7 @@ struct objtool_file {
         bool ignore_unreachables, c_file, hints;
 };
 
-int check(const char *objname, bool no_fp, bool no_unreachable, bool orc);
+int check(const char *objname, bool orc);
 
 struct instruction *find_insn(struct objtool_file *file,
                               struct section *sec, unsigned long offset);
diff --git a/tools/perf/Documentation/perf-data.txt b/tools/perf/Documentation/perf-data.txt
index f0796a47dfa3..90bb4aabe4f8 100644
--- a/tools/perf/Documentation/perf-data.txt
+++ b/tools/perf/Documentation/perf-data.txt
@@ -30,6 +30,10 @@ OPTIONS for 'convert'
 -i::
         Specify input perf data file path.
 
+-f::
+--force::
+        Don't complain, do it.
+
 -v::
 --verbose::
         Be more verbose (show counter open errors, etc).
diff --git a/tools/perf/Documentation/perf-kallsyms.txt b/tools/perf/Documentation/perf-kallsyms.txt
index 954ea9e21236..cf9f4040ea5c 100644
--- a/tools/perf/Documentation/perf-kallsyms.txt
+++ b/tools/perf/Documentation/perf-kallsyms.txt
@@ -8,7 +8,7 @@ perf-kallsyms - Searches running kernel for symbols
 SYNOPSIS
 --------
 [verse]
-'perf kallsyms <options> symbol_name[,symbol_name...]'
+'perf kallsyms' [<options>] symbol_name[,symbol_name...]
 
 DESCRIPTION
 -----------
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 9b0351d3ce34..012328038594 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -146,12 +146,6 @@ define allow-override
     $(eval $(1) = $(2)))
 endef
 
-# Allow setting CC and AR and LD, or setting CROSS_COMPILE as a prefix.
-$(call allow-override,CC,$(CROSS_COMPILE)gcc)
-$(call allow-override,AR,$(CROSS_COMPILE)ar)
-$(call allow-override,LD,$(CROSS_COMPILE)ld)
-$(call allow-override,CXX,$(CROSS_COMPILE)g++)
-
 LD += $(EXTRA_LDFLAGS)
 
 HOSTCC  ?= gcc
diff --git a/tools/perf/arch/s390/Makefile b/tools/perf/arch/s390/Makefile
index 48228de415d0..dfa6e3103437 100644
--- a/tools/perf/arch/s390/Makefile
+++ b/tools/perf/arch/s390/Makefile
@@ -10,15 +10,19 @@ PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
 
 out    := $(OUTPUT)arch/s390/include/generated/asm
 header := $(out)/syscalls_64.c
-sysdef := $(srctree)/tools/arch/s390/include/uapi/asm/unistd.h
-sysprf := $(srctree)/tools/perf/arch/s390/entry/syscalls/
+syskrn := $(srctree)/arch/s390/kernel/syscalls/syscall.tbl
+sysprf := $(srctree)/tools/perf/arch/s390/entry/syscalls
+sysdef := $(sysprf)/syscall.tbl
 systbl := $(sysprf)/mksyscalltbl
 
 # Create output directory if not already present
 _dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
 
 $(header): $(sysdef) $(systbl)
-        $(Q)$(SHELL) '$(systbl)' '$(CC)' $(sysdef) > $@
+        @(test -d ../../kernel -a -d ../../tools -a -d ../perf && ( \
+        (diff -B $(sysdef) $(syskrn) >/dev/null) \
+        || echo "Warning: Kernel ABI header at '$(sysdef)' differs from latest version at '$(syskrn)'" >&2 )) || true
+        $(Q)$(SHELL) '$(systbl)' $(sysdef) > $@
 
 clean::
         $(call QUIET_CLEAN, s390) $(RM) $(header)
diff --git a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
index 7fa0d0abd419..72ecbb676370 100755
--- a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
@@ -3,25 +3,23 @@
 #
 # Generate system call table for perf
 #
-#
-# Copyright IBM Corp. 2017
+# Copyright IBM Corp. 2017, 2018
 # Author(s):  Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
 #
 
-gcc=$1
-input=$2
+SYSCALL_TBL=$1
 
-if ! test -r $input; then
+if ! test -r $SYSCALL_TBL; then
         echo "Could not read input file" >&2
         exit 1
 fi
 
 create_table()
 {
-        local max_nr
+        local max_nr nr abi sc discard
 
         echo 'static const char *syscalltbl_s390_64[] = {'
-        while read sc nr; do
+        while read nr abi sc discard; do
                 printf '\t[%d] = "%s",\n' $nr $sc
                 max_nr=$nr
         done
@@ -29,8 +27,6 @@ create_table()
         echo "#define SYSCALLTBL_S390_64_MAX_ID $max_nr"
 }
 
-
-$gcc -m64 -E -dM -x c  $input          \
-        |sed -ne 's/^#define __NR_//p' \
-        |sort -t' ' -k2 -nu            \
+grep -E "^[[:digit:]]+[[:space:]]+(common|64)" $SYSCALL_TBL     \
+        |sort -k1 -n                                    \
         |create_table
diff --git a/tools/perf/arch/s390/entry/syscalls/syscall.tbl b/tools/perf/arch/s390/entry/syscalls/syscall.tbl
new file mode 100644
index 000000000000..b38d48464368
--- /dev/null
+++ b/tools/perf/arch/s390/entry/syscalls/syscall.tbl
@@ -0,0 +1,390 @@
+# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+#
+# System call table for s390
+#
+# Format:
+#
+# <nr> <abi> <syscall> <entry-64bit> <compat-entry>
+#
+# where <abi> can be common, 64, or 32
+
+1    common     exit                    sys_exit                        sys_exit
+2    common     fork                    sys_fork                        sys_fork
+3    common     read                    sys_read                        compat_sys_s390_read
+4    common     write                   sys_write                       compat_sys_s390_write
+5    common     open                    sys_open                        compat_sys_open
+6    common     close                   sys_close                       sys_close
+7    common     restart_syscall         sys_restart_syscall             sys_restart_syscall
+8    common     creat                   sys_creat                       compat_sys_creat
+9    common     link                    sys_link                        compat_sys_link
+10   common     unlink                  sys_unlink                      compat_sys_unlink
+11   common     execve                  sys_execve                      compat_sys_execve
+12   common     chdir                   sys_chdir                       compat_sys_chdir
+13   32         time                    -                               compat_sys_time
+14   common     mknod                   sys_mknod                       compat_sys_mknod
+15   common     chmod                   sys_chmod                       compat_sys_chmod
+16   32         lchown                  -                               compat_sys_s390_lchown16
+19   common     lseek                   sys_lseek                       compat_sys_lseek
+20   common     getpid                  sys_getpid                      sys_getpid
+21   common     mount                   sys_mount                       compat_sys_mount
+22   common     umount                  sys_oldumount                   compat_sys_oldumount
+23   32         setuid                  -                               compat_sys_s390_setuid16
+24   32         getuid                  -                               compat_sys_s390_getuid16
+25   32         stime                   -                               compat_sys_stime
+26   common     ptrace                  sys_ptrace                      compat_sys_ptrace
+27   common     alarm                   sys_alarm                       sys_alarm
+29   common     pause                   sys_pause                       sys_pause
+30   common     utime                   sys_utime                       compat_sys_utime
+33   common     access                  sys_access                      compat_sys_access
+34   common     nice                    sys_nice                        sys_nice
+36   common     sync                    sys_sync                        sys_sync
+37   common     kill                    sys_kill                        sys_kill
+38   common     rename                  sys_rename                      compat_sys_rename
+39   common     mkdir                   sys_mkdir                       compat_sys_mkdir
+40   common     rmdir                   sys_rmdir                       compat_sys_rmdir
+41   common     dup                     sys_dup                         sys_dup
+42   common     pipe                    sys_pipe                        compat_sys_pipe
+43   common     times                   sys_times                       compat_sys_times
+45   common     brk                     sys_brk                         compat_sys_brk
+46   32         setgid                  -                               compat_sys_s390_setgid16
+47   32         getgid                  -                               compat_sys_s390_getgid16
+48   common     signal                  sys_signal                      compat_sys_signal
+49   32         geteuid                 -                               compat_sys_s390_geteuid16
+50   32         getegid                 -                               compat_sys_s390_getegid16
+51   common     acct                    sys_acct                        compat_sys_acct
+52   common     umount2                 sys_umount                      compat_sys_umount
+54   common     ioctl                   sys_ioctl                       compat_sys_ioctl
+55   common     fcntl                   sys_fcntl                       compat_sys_fcntl
+57   common     setpgid                 sys_setpgid                     sys_setpgid
+60   common     umask                   sys_umask                       sys_umask
+61   common     chroot                  sys_chroot                      compat_sys_chroot
+62   common     ustat                   sys_ustat                       compat_sys_ustat
+63   common     dup2                    sys_dup2                        sys_dup2
+64   common     getppid                 sys_getppid                     sys_getppid
+65   common     getpgrp                 sys_getpgrp                     sys_getpgrp
+66   common     setsid                  sys_setsid                      sys_setsid
+67   common     sigaction               sys_sigaction                   compat_sys_sigaction
+70   32         setreuid                -                               compat_sys_s390_setreuid16
+71   32         setregid                -                               compat_sys_s390_setregid16
+72   common     sigsuspend              sys_sigsuspend                  compat_sys_sigsuspend
+73   common     sigpending              sys_sigpending                  compat_sys_sigpending
+74   common     sethostname             sys_sethostname                 compat_sys_sethostname
+75   common     setrlimit               sys_setrlimit                   compat_sys_setrlimit
+76   32         getrlimit               -                               compat_sys_old_getrlimit
+77   common     getrusage               sys_getrusage                   compat_sys_getrusage
+78   common     gettimeofday            sys_gettimeofday                compat_sys_gettimeofday
+79   common     settimeofday            sys_settimeofday                compat_sys_settimeofday
+80   32         getgroups               -                               compat_sys_s390_getgroups16
+81   32         setgroups               -                               compat_sys_s390_setgroups16
+83   common     symlink                 sys_symlink                     compat_sys_symlink
+85   common     readlink                sys_readlink                    compat_sys_readlink
+86   common     uselib                  sys_uselib                      compat_sys_uselib
+87   common     swapon                  sys_swapon                      compat_sys_swapon
+88   common     reboot                  sys_reboot                      compat_sys_reboot
+89   common     readdir                 -                               compat_sys_old_readdir
+90   common     mmap                    sys_old_mmap                    compat_sys_s390_old_mmap
+91   common     munmap                  sys_munmap                      compat_sys_munmap
+92   common     truncate                sys_truncate                    compat_sys_truncate
+93   common     ftruncate               sys_ftruncate                   compat_sys_ftruncate
+94   common     fchmod                  sys_fchmod                      sys_fchmod
+95   32         fchown                  -                               compat_sys_s390_fchown16
+96   common     getpriority             sys_getpriority                 sys_getpriority
+97   common     setpriority             sys_setpriority                 sys_setpriority
+99   common     statfs                  sys_statfs                      compat_sys_statfs
+100  common     fstatfs                 sys_fstatfs                     compat_sys_fstatfs
+101  32         ioperm                  -                               -
+102  common     socketcall              sys_socketcall                  compat_sys_socketcall
+103  common     syslog                  sys_syslog                      compat_sys_syslog
+104  common     setitimer               sys_setitimer                   compat_sys_setitimer
+105  common     getitimer               sys_getitimer                   compat_sys_getitimer
+106  common     stat                    sys_newstat                     compat_sys_newstat
+107  common     lstat                   sys_newlstat                    compat_sys_newlstat
+108  common     fstat                   sys_newfstat                    compat_sys_newfstat
+110  common     lookup_dcookie          sys_lookup_dcookie              compat_sys_lookup_dcookie
+111  common     vhangup                 sys_vhangup                     sys_vhangup
+112  common     idle                    -                               -
+114  common     wait4                   sys_wait4                       compat_sys_wait4
+115  common     swapoff                 sys_swapoff                     compat_sys_swapoff
+116  common     sysinfo                 sys_sysinfo                     compat_sys_sysinfo
+117  common     ipc                     sys_s390_ipc                    compat_sys_s390_ipc
+118  common     fsync                   sys_fsync                       sys_fsync
+119  common     sigreturn               sys_sigreturn                   compat_sys_sigreturn
+120  common     clone                   sys_clone                       compat_sys_clone
+121  common     setdomainname           sys_setdomainname               compat_sys_setdomainname
+122  common     uname                   sys_newuname                    compat_sys_newuname
+124  common     adjtimex                sys_adjtimex                    compat_sys_adjtimex
+125  common     mprotect                sys_mprotect                    compat_sys_mprotect
+126  common     sigprocmask             sys_sigprocmask                 compat_sys_sigprocmask
+127  common     create_module           -                               -
+128  common     init_module             sys_init_module                 compat_sys_init_module
+129  common     delete_module           sys_delete_module               compat_sys_delete_module
+130  common     get_kernel_syms         -                               -
+131  common     quotactl                sys_quotactl                    compat_sys_quotactl
+132  common     getpgid                 sys_getpgid                     sys_getpgid
+133  common     fchdir                  sys_fchdir                      sys_fchdir
+134  common     bdflush                 sys_bdflush                     compat_sys_bdflush
+135  common     sysfs                   sys_sysfs                       compat_sys_sysfs
+136  common     personality             sys_s390_personality            sys_s390_personality
+137  common     afs_syscall             -                               -
+138  32         setfsuid                -                               compat_sys_s390_setfsuid16
+139  32         setfsgid                -                               compat_sys_s390_setfsgid16
+140  32         _llseek                 -                               compat_sys_llseek
+141  common     getdents                sys_getdents                    compat_sys_getdents
+142  32         _newselect              -                               compat_sys_select
+142  64         select                  sys_select                      -
+143  common     flock                   sys_flock                       sys_flock
+144  common     msync                   sys_msync                       compat_sys_msync
+145  common     readv                   sys_readv                       compat_sys_readv
+146  common     writev                  sys_writev                      compat_sys_writev
+147  common     getsid                  sys_getsid                      sys_getsid
+148  common     fdatasync               sys_fdatasync                   sys_fdatasync
+149  common     _sysctl                 sys_sysctl                      compat_sys_sysctl
+150  common     mlock                   sys_mlock                       compat_sys_mlock
+151  common     munlock                 sys_munlock                     compat_sys_munlock
+152  common     mlockall                sys_mlockall                    sys_mlockall
+153  common     munlockall              sys_munlockall                  sys_munlockall
+154  common     sched_setparam          sys_sched_setparam              compat_sys_sched_setparam
+155  common     sched_getparam          sys_sched_getparam              compat_sys_sched_getparam
+156  common     sched_setscheduler      sys_sched_setscheduler          compat_sys_sched_setscheduler
+157  common     sched_getscheduler      sys_sched_getscheduler          sys_sched_getscheduler
+158  common     sched_yield             sys_sched_yield                 sys_sched_yield
+159  common     sched_get_priority_max  sys_sched_get_priority_max      sys_sched_get_priority_max
+160  common     sched_get_priority_min  sys_sched_get_priority_min      sys_sched_get_priority_min
+161  common     sched_rr_get_interval   sys_sched_rr_get_interval       compat_sys_sched_rr_get_interval
+162  common     nanosleep               sys_nanosleep                   compat_sys_nanosleep
+163  common     mremap                  sys_mremap                      compat_sys_mremap
+164  32         setresuid               -                               compat_sys_s390_setresuid16
+165  32         getresuid               -                               compat_sys_s390_getresuid16
+167  common     query_module            -                               -
+168  common     poll                    sys_poll                        compat_sys_poll
+169  common     nfsservctl              -                               -
+170  32         setresgid               -                               compat_sys_s390_setresgid16
+171  32         getresgid               -                               compat_sys_s390_getresgid16
+172  common     prctl                   sys_prctl                       compat_sys_prctl
+173  common     rt_sigreturn            sys_rt_sigreturn                compat_sys_rt_sigreturn
+174  common     rt_sigaction            sys_rt_sigaction                compat_sys_rt_sigaction
+175  common     rt_sigprocmask          sys_rt_sigprocmask              compat_sys_rt_sigprocmask
+176  common     rt_sigpending           sys_rt_sigpending               compat_sys_rt_sigpending
+177  common     rt_sigtimedwait         sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
+178  common     rt_sigqueueinfo         sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
+179  common     rt_sigsuspend           sys_rt_sigsuspend               compat_sys_rt_sigsuspend
+180  common     pread64                 sys_pread64                     compat_sys_s390_pread64
+181  common     pwrite64                sys_pwrite64                    compat_sys_s390_pwrite64
+182  32         chown                   -                               compat_sys_s390_chown16
+183  common     getcwd                  sys_getcwd                      compat_sys_getcwd
+184  common     capget                  sys_capget                      compat_sys_capget
+185  common     capset                  sys_capset                      compat_sys_capset
+186  common     sigaltstack             sys_sigaltstack                 compat_sys_sigaltstack
+187  common     sendfile                sys_sendfile64                  compat_sys_sendfile
+188  common     getpmsg                 -                               -
+189  common     putpmsg                 -                               -
+190  common     vfork                   sys_vfork                       sys_vfork
+191  32         ugetrlimit              -                               compat_sys_getrlimit
+191  64         getrlimit               sys_getrlimit                   -
+192  32         mmap2                   -                               compat_sys_s390_mmap2
+193  32         truncate64              -                               compat_sys_s390_truncate64
+194  32         ftruncate64             -                               compat_sys_s390_ftruncate64
+195  32         stat64                  -                               compat_sys_s390_stat64
+196  32         lstat64                 -                               compat_sys_s390_lstat64
+197  32         fstat64                 -                               compat_sys_s390_fstat64
+198  32         lchown32                -                               compat_sys_lchown
+198  64         lchown                  sys_lchown                      -
+199  32         getuid32                -                               sys_getuid
+199  64         getuid                  sys_getuid                      -
+200  32         getgid32                -                               sys_getgid
+200  64         getgid                  sys_getgid                      -
+201  32         geteuid32               -                               sys_geteuid
+201  64         geteuid                 sys_geteuid                     -
+202  32         getegid32               -                               sys_getegid
+202  64         getegid                 sys_getegid                     -
+203  32         setreuid32              -                               sys_setreuid
+203  64         setreuid                sys_setreuid                    -
+204  32         setregid32              -                               sys_setregid
+204  64         setregid                sys_setregid                    -
+205  32         getgroups32             -                               compat_sys_getgroups
+205  64         getgroups               sys_getgroups                   -
+206  32         setgroups32             -                               compat_sys_setgroups
+206  64         setgroups               sys_setgroups                   -
+207  32         fchown32                -                               sys_fchown
+207  64         fchown                  sys_fchown                      -
+208  32         setresuid32             -                               sys_setresuid
+208  64         setresuid               sys_setresuid                   -
+209  32         getresuid32             -                               compat_sys_getresuid
+209  64         getresuid               sys_getresuid                   -
+210  32         setresgid32             -                               sys_setresgid
+210  64         setresgid               sys_setresgid                   -
+211  32         getresgid32             -                               compat_sys_getresgid
+211  64         getresgid               sys_getresgid                   -
+212  32         chown32                 -                               compat_sys_chown
+212  64         chown                   sys_chown                       -
+213  32         setuid32                -                               sys_setuid
+213  64         setuid                  sys_setuid                      -
+214  32         setgid32                -                               sys_setgid
+214  64         setgid                  sys_setgid                      -
+215  32         setfsuid32              -                               sys_setfsuid
+215  64         setfsuid                sys_setfsuid                    -
+216  32         setfsgid32              -                               sys_setfsgid
+216  64         setfsgid                sys_setfsgid                    -
+217  common     pivot_root              sys_pivot_root                  compat_sys_pivot_root
+218  common     mincore                 sys_mincore                     compat_sys_mincore
+219  common     madvise                 sys_madvise                     compat_sys_madvise
+220  common     getdents64              sys_getdents64                  compat_sys_getdents64
+221  32         fcntl64                 -                               compat_sys_fcntl64
+222  common     readahead               sys_readahead                   compat_sys_s390_readahead
+223  32         sendfile64              -                               compat_sys_sendfile64
+224  common     setxattr                sys_setxattr                    compat_sys_setxattr
+225  common     lsetxattr               sys_lsetxattr                   compat_sys_lsetxattr
+226  common     fsetxattr               sys_fsetxattr                   compat_sys_fsetxattr
+227  common     getxattr                sys_getxattr                    compat_sys_getxattr
+228  common     lgetxattr               sys_lgetxattr                   compat_sys_lgetxattr
+229  common     fgetxattr               sys_fgetxattr                   compat_sys_fgetxattr
+230  common     listxattr               sys_listxattr                   compat_sys_listxattr
+231  common     llistxattr              sys_llistxattr                  compat_sys_llistxattr
+232  common     flistxattr              sys_flistxattr                  compat_sys_flistxattr
+233  common     removexattr             sys_removexattr                 compat_sys_removexattr
+234  common     lremovexattr            sys_lremovexattr                compat_sys_lremovexattr
+235  common     fremovexattr            sys_fremovexattr                compat_sys_fremovexattr
+236  common     gettid                  sys_gettid                      sys_gettid
+237  common     tkill                   sys_tkill                       sys_tkill
+238  common     futex                   sys_futex                       compat_sys_futex
+239  common     sched_setaffinity       sys_sched_setaffinity           compat_sys_sched_setaffinity
+240  common     sched_getaffinity       sys_sched_getaffinity           compat_sys_sched_getaffinity
+241  common     tgkill                  sys_tgkill                      sys_tgkill
+243  common     io_setup                sys_io_setup                    compat_sys_io_setup
+244  common     io_destroy              sys_io_destroy                  compat_sys_io_destroy
+245  common     io_getevents            sys_io_getevents                compat_sys_io_getevents
+246  common     io_submit               sys_io_submit                   compat_sys_io_submit
+247  common     io_cancel               sys_io_cancel                   compat_sys_io_cancel
+248  common     exit_group              sys_exit_group                  sys_exit_group
+249  common     epoll_create            sys_epoll_create                sys_epoll_create
+250  common     epoll_ctl               sys_epoll_ctl                   compat_sys_epoll_ctl
+251  common     epoll_wait              sys_epoll_wait                  compat_sys_epoll_wait
+252  common     set_tid_address         sys_set_tid_address             compat_sys_set_tid_address
+253  common     fadvise64               sys_fadvise64_64                compat_sys_s390_fadvise64
+254  common     timer_create            sys_timer_create                compat_sys_timer_create
+255  common     timer_settime           sys_timer_settime               compat_sys_timer_settime
+256  common     timer_gettime           sys_timer_gettime               compat_sys_timer_gettime
+257  common     timer_getoverrun        sys_timer_getoverrun            sys_timer_getoverrun
+258  common     timer_delete            sys_timer_delete                sys_timer_delete
+259  common     clock_settime           sys_clock_settime               compat_sys_clock_settime
+260  common     clock_gettime           sys_clock_gettime               compat_sys_clock_gettime
+261  common     clock_getres            sys_clock_getres                compat_sys_clock_getres
+262  common     clock_nanosleep         sys_clock_nanosleep             compat_sys_clock_nanosleep
+264  32         fadvise64_64            -                               compat_sys_s390_fadvise64_64
+265  common     statfs64                sys_statfs64                    compat_sys_statfs64
+266  common     fstatfs64               sys_fstatfs64                   compat_sys_fstatfs64
+267  common     remap_file_pages        sys_remap_file_pages            compat_sys_remap_file_pages
+268  common     mbind                   sys_mbind                       compat_sys_mbind
+269  common     get_mempolicy           sys_get_mempolicy               compat_sys_get_mempolicy
+270  common     set_mempolicy           sys_set_mempolicy               compat_sys_set_mempolicy
+271  common     mq_open                 sys_mq_open                     compat_sys_mq_open
+272  common     mq_unlink               sys_mq_unlink                   compat_sys_mq_unlink
+273  common     mq_timedsend            sys_mq_timedsend                compat_sys_mq_timedsend
+274  common     mq_timedreceive         sys_mq_timedreceive             compat_sys_mq_timedreceive
+275  common     mq_notify               sys_mq_notify                   compat_sys_mq_notify
+276  common     mq_getsetattr           sys_mq_getsetattr               compat_sys_mq_getsetattr
+277  common     kexec_load              sys_kexec_load                  compat_sys_kexec_load
+278  common     add_key                 sys_add_key                     compat_sys_add_key
+279  common     request_key             sys_request_key                 compat_sys_request_key
+280  common     keyctl                  sys_keyctl                      compat_sys_keyctl
+281  common     waitid                  sys_waitid                      compat_sys_waitid
+282  common     ioprio_set              sys_ioprio_set                  sys_ioprio_set
+283  common     ioprio_get              sys_ioprio_get                  sys_ioprio_get
+284  common     inotify_init            sys_inotify_init                sys_inotify_init
+285  common     inotify_add_watch       sys_inotify_add_watch           compat_sys_inotify_add_watch
+286  common     inotify_rm_watch        sys_inotify_rm_watch            sys_inotify_rm_watch
+287  common     migrate_pages           sys_migrate_pages               compat_sys_migrate_pages
+288  common     openat                  sys_openat                      compat_sys_openat
+289  common     mkdirat                 sys_mkdirat                     compat_sys_mkdirat
+290  common     mknodat                 sys_mknodat                     compat_sys_mknodat
+291  common     fchownat                sys_fchownat                    compat_sys_fchownat
+292  common     futimesat               sys_futimesat                   compat_sys_futimesat
+293  32         fstatat64               -                               compat_sys_s390_fstatat64
+293  64         newfstatat              sys_newfstatat                  -
+294  common     unlinkat                sys_unlinkat                    compat_sys_unlinkat
+295  common     renameat                sys_renameat                    compat_sys_renameat
+296  common     linkat                  sys_linkat                      compat_sys_linkat
+297  common     symlinkat               sys_symlinkat                   compat_sys_symlinkat
+298  common     readlinkat              sys_readlinkat                  compat_sys_readlinkat
+299  common     fchmodat                sys_fchmodat                    compat_sys_fchmodat
+300  common     faccessat               sys_faccessat                   compat_sys_faccessat
+301  common     pselect6                sys_pselect6                    compat_sys_pselect6
+302  common     ppoll                   sys_ppoll                       compat_sys_ppoll
+303  common     unshare                 sys_unshare                     compat_sys_unshare
+304  common     set_robust_list         sys_set_robust_list             compat_sys_set_robust_list
+305  common     get_robust_list         sys_get_robust_list             compat_sys_get_robust_list
+306  common     splice                  sys_splice                      compat_sys_splice
+307  common     sync_file_range         sys_sync_file_range             compat_sys_s390_sync_file_range
+308  common     tee                     sys_tee                         compat_sys_tee
+309  common     vmsplice                sys_vmsplice                    compat_sys_vmsplice
+310  common     move_pages              sys_move_pages                  compat_sys_move_pages
+311  common     getcpu                  sys_getcpu                      compat_sys_getcpu
+312  common     epoll_pwait             sys_epoll_pwait                 compat_sys_epoll_pwait
+313  common     utimes                  sys_utimes                      compat_sys_utimes
+314  common     fallocate               sys_fallocate                   compat_sys_s390_fallocate
+315  common     utimensat               sys_utimensat                   compat_sys_utimensat
+316  common     signalfd                sys_signalfd                    compat_sys_signalfd
+317  common     timerfd                 -                               -
+318  common     eventfd                 sys_eventfd                     sys_eventfd
+319  common     timerfd_create          sys_timerfd_create              sys_timerfd_create
+320  common     timerfd_settime         sys_timerfd_settime             compat_sys_timerfd_settime
+321  common     timerfd_gettime         sys_timerfd_gettime             compat_sys_timerfd_gettime
+322  common     signalfd4               sys_signalfd4                   compat_sys_signalfd4
+323  common     eventfd2                sys_eventfd2                    sys_eventfd2
+324  common     inotify_init1           sys_inotify_init1               sys_inotify_init1
+325  common     pipe2                   sys_pipe2                       compat_sys_pipe2
+326  common     dup3                    sys_dup3                        sys_dup3
+327  common     epoll_create1           sys_epoll_create1               sys_epoll_create1
+328  common     preadv                  sys_preadv                      compat_sys_preadv
+329  common     pwritev                 sys_pwritev                     compat_sys_pwritev
+330  common     rt_tgsigqueueinfo       sys_rt_tgsigqueueinfo           compat_sys_rt_tgsigqueueinfo
+331  common     perf_event_open         sys_perf_event_open             compat_sys_perf_event_open
+332  common     fanotify_init           sys_fanotify_init               sys_fanotify_init
+333  common     fanotify_mark           sys_fanotify_mark               compat_sys_fanotify_mark
+334  common     prlimit64               sys_prlimit64                   compat_sys_prlimit64
+335  common     name_to_handle_at       sys_name_to_handle_at           compat_sys_name_to_handle_at
+336  common     open_by_handle_at       sys_open_by_handle_at           compat_sys_open_by_handle_at
+337  common     clock_adjtime           sys_clock_adjtime               compat_sys_clock_adjtime
+338  common     syncfs                  sys_syncfs                      sys_syncfs
+339  common     setns                   sys_setns                       sys_setns
+340  common     process_vm_readv        sys_process_vm_readv            compat_sys_process_vm_readv
+341  common     process_vm_writev       sys_process_vm_writev           compat_sys_process_vm_writev
+342  common     s390_runtime_instr      sys_s390_runtime_instr          sys_s390_runtime_instr
+343  common     kcmp                    sys_kcmp                        compat_sys_kcmp
+344  common     finit_module            sys_finit_module                compat_sys_finit_module
+345  common     sched_setattr           sys_sched_setattr               compat_sys_sched_setattr
+346  common     sched_getattr           sys_sched_getattr               compat_sys_sched_getattr
+347  common     renameat2               sys_renameat2                   compat_sys_renameat2
+348  common     seccomp                 sys_seccomp                     compat_sys_seccomp
+349  common     getrandom               sys_getrandom                   compat_sys_getrandom
+350  common     memfd_create            sys_memfd_create                compat_sys_memfd_create
+351  common     bpf                     sys_bpf                         compat_sys_bpf
+352  common     s390_pci_mmio_write     sys_s390_pci_mmio_write         compat_sys_s390_pci_mmio_write
+353  common     s390_pci_mmio_read      sys_s390_pci_mmio_read          compat_sys_s390_pci_mmio_read
+354  common     execveat                sys_execveat                    compat_sys_execveat
+355  common     userfaultfd             sys_userfaultfd                 sys_userfaultfd
+356  common     membarrier              sys_membarrier                  sys_membarrier
+357  common     recvmmsg                sys_recvmmsg                    compat_sys_recvmmsg
+358  common     sendmmsg                sys_sendmmsg                    compat_sys_sendmmsg
+359  common     socket                  sys_socket                      sys_socket
+360  common     socketpair              sys_socketpair                  compat_sys_socketpair
+361  common     bind                    sys_bind                        compat_sys_bind
+362  common     connect                 sys_connect                     compat_sys_connect
+363  common     listen                  sys_listen                      sys_listen
+364  common     accept4                 sys_accept4                     compat_sys_accept4
+365  common     getsockopt              sys_getsockopt                  compat_sys_getsockopt
+366  common     setsockopt              sys_setsockopt                  compat_sys_setsockopt
+367  common     getsockname             sys_getsockname                 compat_sys_getsockname
+368  common     getpeername             sys_getpeername                 compat_sys_getpeername
+369  common     sendto                  sys_sendto                      compat_sys_sendto
+370  common     sendmsg                 sys_sendmsg                     compat_sys_sendmsg
+371  common     recvfrom                sys_recvfrom                    compat_sys_recvfrom
+372  common     recvmsg                 sys_recvmsg                     compat_sys_recvmsg
+373  common     shutdown                sys_shutdown                    sys_shutdown
+374  common     mlock2                  sys_mlock2                      compat_sys_mlock2
+375  common     copy_file_range         sys_copy_file_range             compat_sys_copy_file_range
+376  common     preadv2                 sys_preadv2                     compat_sys_preadv2
+377  common     pwritev2                sys_pwritev2                    compat_sys_pwritev2
+378  common     s390_guarded_storage    sys_s390_guarded_storage        compat_sys_s390_guarded_storage
+379  common     statx                   sys_statx                       compat_sys_statx
+380  common     s390_sthyi              sys_s390_sthyi                  compat_sys_s390_sthyi
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index c0815a37fdb5..539c3d460158 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2245,7 +2245,7 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
         c2c_browser__update_nr_entries(browser);
 
         while (1) {
-                key = hist_browser__run(browser, "? - help");
+                key = hist_browser__run(browser, "? - help", true);
 
                 switch (key) {
                 case 's':
@@ -2314,7 +2314,7 @@ static int perf_c2c__hists_browse(struct hists *hists)
         c2c_browser__update_nr_entries(browser);
 
         while (1) {
-                key = hist_browser__run(browser, "? - help");
+                key = hist_browser__run(browser, "? - help", true);
 
                 switch (key) {
                 case 'q':
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index bf4ca749d1ac..a217623fec2e 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -881,6 +881,15 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
                 }
         }
 
+        /*
+         * If we have just single event and are sending data
+         * through pipe, we need to force the ids allocation,
+         * because we synthesize event name through the pipe
+         * and need the id for that.
+         */
+        if (data->is_pipe && rec->evlist->nr_entries == 1)
+                rec->opts.sample_id = true;
+
         if (record__open(rec) != 0) {
                 err = -1;
                 goto out_child;
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 42a52dcc41cd..4ad5dc649716 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -530,7 +530,8 @@ static int report__browse_hists(struct report *rep)
         case 1:
                 ret = perf_evlist__tui_browse_hists(evlist, help, NULL,
                                                     rep->min_percent,
-                                                    &session->header.env);
+                                                    &session->header.env,
+                                                    true);
                 /*
                  * Usually "ret" is the last pressed key, and we only
                  * care if the key notifies us to switch data file.
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 98bf9d32f222..54a4c152edb3 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -917,7 +917,7 @@ static void print_metric_csv(void *ctx,
         char buf[64], *vals, *ends;
 
         if (unit == NULL || fmt == NULL) {
-                fprintf(out, "%s%s%s%s", csv_sep, csv_sep, csv_sep, csv_sep);
+                fprintf(out, "%s%s", csv_sep, csv_sep);
                 return;
         }
         snprintf(buf, sizeof(buf), fmt, val);
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index c6ccda52117d..35ac016fcb98 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -283,8 +283,9 @@ static void perf_top__print_sym_table(struct perf_top *top)
 
         printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
 
-        if (hists->stats.nr_lost_warned !=
-            hists->stats.nr_events[PERF_RECORD_LOST]) {
+        if (!top->record_opts.overwrite &&
+            (hists->stats.nr_lost_warned !=
+            hists->stats.nr_events[PERF_RECORD_LOST])) {
                 hists->stats.nr_lost_warned =
                               hists->stats.nr_events[PERF_RECORD_LOST];
                 color_fprintf(stdout, PERF_COLOR_RED,
@@ -611,7 +612,8 @@ static void *display_thread_tui(void *arg)
 
         perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
                                       top->min_percent,
-                                      &top->session->header.env);
+                                      &top->session->header.env,
+                                      !top->record_opts.overwrite);
 
         done = 1;
         return NULL;
@@ -807,15 +809,23 @@ static void perf_event__process_sample(struct perf_tool *tool,
 
 static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
 {
+        struct record_opts *opts = &top->record_opts;
+        struct perf_evlist *evlist = top->evlist;
         struct perf_sample sample;
         struct perf_evsel *evsel;
+        struct perf_mmap *md;
         struct perf_session *session = top->session;
         union perf_event *event;
         struct machine *machine;
+        u64 end, start;
         int ret;
 
-        while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) {
-                ret = perf_evlist__parse_sample(top->evlist, event, &sample);
+        md = opts->overwrite ? &evlist->overwrite_mmap[idx] : &evlist->mmap[idx];
+        if (perf_mmap__read_init(md, opts->overwrite, &start, &end) < 0)
+                return;
+
+        while ((event = perf_mmap__read_event(md, opts->overwrite, &start, end)) != NULL) {
+                ret = perf_evlist__parse_sample(evlist, event, &sample);
                 if (ret) {
                         pr_err("Can't parse sample, err = %d\n", ret);
                         goto next_event;
@@ -869,16 +879,120 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
                 } else
                         ++session->evlist->stats.nr_unknown_events;
 next_event:
-                perf_evlist__mmap_consume(top->evlist, idx);
+                perf_mmap__consume(md, opts->overwrite);
         }
+
+        perf_mmap__read_done(md);
 }
 
 static void perf_top__mmap_read(struct perf_top *top)
 {
+        bool overwrite = top->record_opts.overwrite;
+        struct perf_evlist *evlist = top->evlist;
+        unsigned long long start, end;
         int i;
 
+        start = rdclock();
+        if (overwrite)
+                perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_DATA_PENDING);
+
         for (i = 0; i < top->evlist->nr_mmaps; i++)
                 perf_top__mmap_read_idx(top, i);
+
+        if (overwrite) {
+                perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_EMPTY);
+                perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_RUNNING);
+        }
+        end = rdclock();
+
+        if ((end - start) > (unsigned long long)top->delay_secs * NSEC_PER_SEC)
+                ui__warning("Too slow to read ring buffer.\n"
+                            "Please try increasing the period (-c) or\n"
+                            "decreasing the freq (-F) or\n"
+                            "limiting the number of CPUs (-C)\n");
+}
+
+/*
+ * Check per-event overwrite term.
+ * perf top should support consistent term for all events.
+ * - All events don't have per-event term
+ *   E.g. "cpu/cpu-cycles/,cpu/instructions/"
+ *   Nothing change, return 0.
+ * - All events have same per-event term
+ *   E.g. "cpu/cpu-cycles,no-overwrite/,cpu/instructions,no-overwrite/
+ *   Using the per-event setting to replace the opts->overwrite if
+ *   they are different, then return 0.
+ * - Events have different per-event term
+ *   E.g. "cpu/cpu-cycles,overwrite/,cpu/instructions,no-overwrite/"
+ *   Return -1
+ * - Some of the event set per-event term, but some not.
+ *   E.g. "cpu/cpu-cycles/,cpu/instructions,no-overwrite/"
+ *   Return -1
+ */
+static int perf_top__overwrite_check(struct perf_top *top)
+{
+        struct record_opts *opts = &top->record_opts;
+        struct perf_evlist *evlist = top->evlist;
+        struct perf_evsel_config_term *term;
+        struct list_head *config_terms;
+        struct perf_evsel *evsel;
+        int set, overwrite = -1;
+
+        evlist__for_each_entry(evlist, evsel) {
+                set = -1;
+                config_terms = &evsel->config_terms;
+                list_for_each_entry(term, config_terms, list) {
+                        if (term->type == PERF_EVSEL__CONFIG_TERM_OVERWRITE)
+                                set = term->val.overwrite ? 1 : 0;
+                }
+
+                /* no term for current and previous event (likely) */
+                if ((overwrite < 0) && (set < 0))
+                        continue;
+
+                /* has term for both current and previous event, compare */
+                if ((overwrite >= 0) && (set >= 0) && (overwrite != set))
+                        return -1;
+
+                /* no term for current event but has term for previous one */
+                if ((overwrite >= 0) && (set < 0))
+                        return -1;
+
+                /* has term for current event */
+                if ((overwrite < 0) && (set >= 0)) {
+                        /* if it's first event, set overwrite */
+                        if (evsel == perf_evlist__first(evlist))
+                                overwrite = set;
+                        else
+                                return -1;
+                }
+        }
+
+        if ((overwrite >= 0) && (opts->overwrite != overwrite))
+                opts->overwrite = overwrite;
+
+        return 0;
+}
+
+static int perf_top_overwrite_fallback(struct perf_top *top,
+                                       struct perf_evsel *evsel)
+{
+        struct record_opts *opts = &top->record_opts;
+        struct perf_evlist *evlist = top->evlist;
+        struct perf_evsel *counter;
+
+        if (!opts->overwrite)
+                return 0;
+
+        /* only fall back when first event fails */
+        if (evsel != perf_evlist__first(evlist))
+                return 0;
+
+        evlist__for_each_entry(evlist, counter)
+                counter->attr.write_backward = false;
+        opts->overwrite = false;
+        pr_debug2("fall back to non-overwrite mode\n");
+        return 1;
 }
 
 static int perf_top__start_counters(struct perf_top *top)
@@ -888,12 +1002,33 @@ static int perf_top__start_counters(struct perf_top *top)
         struct perf_evlist *evlist = top->evlist;
         struct record_opts *opts = &top->record_opts;
 
+        if (perf_top__overwrite_check(top)) {
+                ui__error("perf top only support consistent per-event "
+                          "overwrite setting for all events\n");
+                goto out_err;
+        }
+
         perf_evlist__config(evlist, opts, &callchain_param);
 
         evlist__for_each_entry(evlist, counter) {
 try_again:
                 if (perf_evsel__open(counter, top->evlist->cpus,
                                      top->evlist->threads) < 0) {
+
+                        /*
+                         * Specially handle overwrite fall back.
+                         * Because perf top is the only tool which has
+                         * overwrite mode by default, support
+                         * both overwrite and non-overwrite mode, and
+                         * require consistent mode for all events.
+                         *
+                         * May move it to generic code with more tools
+                         * have similar attribute.
+                         */
+                        if (perf_missing_features.write_backward &&
+                            perf_top_overwrite_fallback(top, counter))
+                                goto try_again;
+
                         if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) {
                                 if (verbose > 0)
                                         ui__warning("%s\n", msg);
@@ -1033,7 +1168,7 @@ static int __cmd_top(struct perf_top *top)
 
                 perf_top__mmap_read(top);
 
-                if (hits == top->samples)
+                if (opts->overwrite || (hits == top->samples))
                         ret = perf_evlist__poll(top->evlist, 100);
 
                 if (resize) {
@@ -1127,6 +1262,7 @@ int cmd_top(int argc, const char **argv)
                                 .uses_mmap   = true,
                         },
                         .proc_map_timeout    = 500,
+                        .overwrite      = 1,
                 },
                 .max_stack           = sysctl_perf_event_max_stack,
                 .sym_pcnt_filter     = 5,
diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 51abdb0a4047..790ec25919a0 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -33,7 +33,6 @@ arch/s390/include/uapi/asm/kvm.h
 arch/s390/include/uapi/asm/kvm_perf.h
 arch/s390/include/uapi/asm/ptrace.h
 arch/s390/include/uapi/asm/sie.h
-arch/s390/include/uapi/asm/unistd.h
 arch/arm/include/uapi/asm/kvm.h
 arch/arm64/include/uapi/asm/kvm.h
 arch/alpha/include/uapi/asm/errno.h
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index cfe46236a5e5..57b9b342d533 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -61,6 +61,7 @@ struct record_opts {
         bool         tail_synthesize;
         bool         overwrite;
         bool         ignore_missing_thread;
+        bool         sample_id;
         unsigned int freq;
         unsigned int mmap_pages;
         unsigned int auxtrace_mmap_pages;
diff --git a/tools/perf/pmu-events/arch/arm64/cortex-a53/branch.json b/tools/perf/pmu-events/arch/arm64/cortex-a53/branch.json
new file mode 100644
index 000000000000..3b6208763e50
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/cortex-a53/branch.json
@@ -0,0 +1,27 @@
+[
+  {,
+    "EventCode": "0x7A",
+    "EventName": "BR_INDIRECT_SPEC",
+    "BriefDescription": "Branch speculatively executed - Indirect branch"
+  },
+  {,
+    "EventCode": "0xC9",
+    "EventName": "BR_COND",
+    "BriefDescription": "Conditional branch executed"
+  },
+  {,
+    "EventCode": "0xCA",
+    "EventName": "BR_INDIRECT_MISPRED",
+    "BriefDescription": "Indirect branch mispredicted"
+  },
+  {,
+    "EventCode": "0xCB",
+    "EventName": "BR_INDIRECT_MISPRED_ADDR",
+    "BriefDescription": "Indirect branch mispredicted because of address miscompare"
+  },
+  {,
+    "EventCode": "0xCC",
+    "EventName": "BR_COND_MISPRED",
+    "BriefDescription": "Conditional branch mispredicted"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/arm64/cortex-a53/bus.json b/tools/perf/pmu-events/arch/arm64/cortex-a53/bus.json
new file mode 100644
index 000000000000..480d9f7460ab
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/cortex-a53/bus.json
@@ -0,0 +1,22 @@
+[
+  {,
+    "EventCode": "0x60",
+    "EventName": "BUS_ACCESS_LD",
+    "BriefDescription": "Bus access - Read"
+  },
+  {,
+    "EventCode": "0x61",
+    "EventName": "BUS_ACCESS_ST",
+    "BriefDescription": "Bus access - Write"
+  },
+  {,
+    "EventCode": "0xC0",
+    "EventName": "EXT_MEM_REQ",
+    "BriefDescription": "External memory request"
+  },
+  {,
+    "EventCode": "0xC1",
+    "EventName": "EXT_MEM_REQ_NC",
+    "BriefDescription": "Non-cacheable external memory request"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/arm64/cortex-a53/cache.json b/tools/perf/pmu-events/arch/arm64/cortex-a53/cache.json
new file mode 100644
index 000000000000..11baad6344b9
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/cortex-a53/cache.json
@@ -0,0 +1,27 @@
+[
+  {,
+    "EventCode": "0xC2",
+    "EventName": "PREFETCH_LINEFILL",
+    "BriefDescription": "Linefill because of prefetch"
+  },
+  {,
+    "EventCode": "0xC3",
+    "EventName": "PREFETCH_LINEFILL_DROP",
+    "BriefDescription": "Instruction Cache Throttle occurred"
+  },
+  {,
+    "EventCode": "0xC4",
+    "EventName": "READ_ALLOC_ENTER",
+    "BriefDescription": "Entering read allocate mode"
+  },
+  {,
+    "EventCode": "0xC5",
+    "EventName": "READ_ALLOC",
+    "BriefDescription": "Read allocate mode"
+  },
+  {,
+    "EventCode": "0xC8",
+    "EventName": "EXT_SNOOP",
+    "BriefDescription": "SCU Snooped data from another CPU for this CPU"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/arm64/cortex-a53/memory.json b/tools/perf/pmu-events/arch/arm64/cortex-a53/memory.json
new file mode 100644
index 000000000000..480d9f7460ab
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/cortex-a53/memory.json
@@ -0,0 +1,22 @@
+[
+  {,
+    "EventCode": "0x60",
+    "EventName": "BUS_ACCESS_LD",
+    "BriefDescription": "Bus access - Read"
+  },
+  {,
+    "EventCode": "0x61",
+    "EventName": "BUS_ACCESS_ST",
+    "BriefDescription": "Bus access - Write"
+  },
+  {,
+    "EventCode": "0xC0",
+    "EventName": "EXT_MEM_REQ",
+    "BriefDescription": "External memory request"
+  },
+  {,
+    "EventCode": "0xC1",
+    "EventName": "EXT_MEM_REQ_NC",
+    "BriefDescription": "Non-cacheable external memory request"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/arm64/cortex-a53/other.json b/tools/perf/pmu-events/arch/arm64/cortex-a53/other.json
new file mode 100644
index 000000000000..73a22402d003
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/cortex-a53/other.json
@@ -0,0 +1,32 @@
+[
+  {,
+    "EventCode": "0x86",
+    "EventName": "EXC_IRQ",
+    "BriefDescription": "Exception taken, IRQ"
+  },
+  {,
+    "EventCode": "0x87",
+    "EventName": "EXC_FIQ",
+    "BriefDescription": "Exception taken, FIQ"
+  },
+  {,
+    "EventCode": "0xC6",
+    "EventName": "PRE_DECODE_ERR",
+    "BriefDescription": "Pre-decode error"
+  },
+  {,
+    "EventCode": "0xD0",
+    "EventName": "L1I_CACHE_ERR",
+    "BriefDescription": "L1 Instruction Cache (data or tag) memory error"
+  },
+  {,
+    "EventCode": "0xD1",
+    "EventName": "L1D_CACHE_ERR",
+    "BriefDescription": "L1 Data Cache (data, tag or dirty) memory error, correctable or non-correctable"
+  },
+  {,
+    "EventCode": "0xD2",
+    "EventName": "TLB_ERR",
+    "BriefDescription": "TLB memory error"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/arm64/cortex-a53/pipeline.json b/tools/perf/pmu-events/arch/arm64/cortex-a53/pipeline.json
new file mode 100644
index 000000000000..3149fb90555a
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/cortex-a53/pipeline.json
@@ -0,0 +1,52 @@
+[
+  {,
+    "EventCode": "0xC7",
+    "EventName": "STALL_SB_FULL",
+    "BriefDescription": "Data Write operation that stalls the pipeline because the store buffer is full"
+  },
+  {,
+    "EventCode": "0xE0",
+    "EventName": "OTHER_IQ_DEP_STALL",
+    "BriefDescription": "Cycles that the DPU IQ is empty and that is not because of a recent micro-TLB miss, instruction cache miss or pre-decode error"
+  },
+  {,
+    "EventCode": "0xE1",
+    "EventName": "IC_DEP_STALL",
+    "BriefDescription": "Cycles the DPU IQ is empty and there is an instruction cache miss being processed"
+  },
+  {,
+    "EventCode": "0xE2",
+    "EventName": "IUTLB_DEP_STALL",
+    "BriefDescription": "Cycles the DPU IQ is empty and there is an instruction micro-TLB miss being processed"
+  },
+  {,
+    "EventCode": "0xE3",
+    "EventName": "DECODE_DEP_STALL",
+    "BriefDescription": "Cycles the DPU IQ is empty and there is a pre-decode error being processed"
+  },
+  {,
+    "EventCode": "0xE4",
+    "EventName": "OTHER_INTERLOCK_STALL",
+    "BriefDescription": "Cycles there is an interlock other than  Advanced SIMD/Floating-point instructions or load/store instruction"
+  },
+  {,
+    "EventCode": "0xE5",
+    "EventName": "AGU_DEP_STALL",
+    "BriefDescription": "Cycles there is an interlock for a load/store instruction waiting for data to calculate the address in the AGU"
+  },
+  {,
+    "EventCode": "0xE6",
+    "EventName": "SIMD_DEP_STALL",
+    "BriefDescription": "Cycles there is an interlock for an Advanced SIMD/Floating-point operation."
+  },
+  {,
+    "EventCode": "0xE7",
+    "EventName": "LD_DEP_STALL",
+    "BriefDescription": "Cycles there is a stall in the Wr stage because of a load miss"
+  },
+  {,
+    "EventCode": "0xE8",
+    "EventName": "ST_DEP_STALL",
+    "BriefDescription": "Cycles there is a stall in the Wr stage because of a store"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/arm64/mapfile.csv b/tools/perf/pmu-events/arch/arm64/mapfile.csv
index 219d6756134e..e61c9ca6cf9e 100644
--- a/tools/perf/pmu-events/arch/arm64/mapfile.csv
+++ b/tools/perf/pmu-events/arch/arm64/mapfile.csv
@@ -13,3 +13,4 @@
 #
 #Family-model,Version,Filename,EventType
 0x00000000420f5160,v1,cavium,core
+0x00000000410fd03[[:xdigit:]],v1,cortex-a53,core
diff --git a/tools/perf/tests/backward-ring-buffer.c b/tools/perf/tests/backward-ring-buffer.c
index 4035d43523c3..e0b1b414d466 100644
--- a/tools/perf/tests/backward-ring-buffer.c
+++ b/tools/perf/tests/backward-ring-buffer.c
@@ -31,10 +31,12 @@ static int count_samples(struct perf_evlist *evlist, int *sample_count,
         int i;
 
         for (i = 0; i < evlist->nr_mmaps; i++) {
+                struct perf_mmap *map = &evlist->overwrite_mmap[i];
                 union perf_event *event;
+                u64 start, end;
 
-                perf_mmap__read_catchup(&evlist->overwrite_mmap[i]);
-                while ((event = perf_mmap__read_backward(&evlist->overwrite_mmap[i])) != NULL) {
+                perf_mmap__read_init(map, true, &start, &end);
+                while ((event = perf_mmap__read_event(map, true, &start, end)) != NULL) {
                         const u32 type = event->header.type;
 
                         switch (type) {
@@ -49,6 +51,7 @@ static int count_samples(struct perf_evlist *evlist, int *sample_count,
                                 return TEST_FAIL;
                         }
                 }
+                perf_mmap__read_done(map);
         }
         return TEST_OK;
 }
diff --git a/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh b/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
index 8b3da21a08f1..c446c894b297 100755
--- a/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
+++ b/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
@@ -22,10 +22,23 @@ trace_libc_inet_pton_backtrace() {
         expected[4]="rtt min.*"
         expected[5]="[0-9]+\.[0-9]+[[:space:]]+probe_libc:inet_pton:\([[:xdigit:]]+\)"
         expected[6]=".*inet_pton[[:space:]]\($libc\)$"
-        expected[7]="getaddrinfo[[:space:]]\($libc\)$"
-        expected[8]=".*\(.*/bin/ping.*\)$"
-
-        perf trace --no-syscalls -e probe_libc:inet_pton/max-stack=3/ ping -6 -c 1 ::1 2>&1 | grep -v ^$ | while read line ; do
+        case "$(uname -m)" in
+        s390x)
+                eventattr='call-graph=dwarf'
+                expected[7]="gaih_inet[[:space:]]\(inlined\)$"
+                expected[8]="__GI_getaddrinfo[[:space:]]\(inlined\)$"
+                expected[9]="main[[:space:]]\(.*/bin/ping.*\)$"
+                expected[10]="__libc_start_main[[:space:]]\($libc\)$"
+                expected[11]="_start[[:space:]]\(.*/bin/ping.*\)$"
+                ;;
+        *)
+                eventattr='max-stack=3'
+                expected[7]="getaddrinfo[[:space:]]\($libc\)$"
+                expected[8]=".*\(.*/bin/ping.*\)$"
+                ;;
+        esac
+
+        perf trace --no-syscalls -e probe_libc:inet_pton/$eventattr/ ping -6 -c 1 ::1 2>&1 | grep -v ^$ | while read line ; do
                 echo $line
                 echo "$line" | egrep -q "${expected[$idx]}"
                 if [ $? -ne 0 ] ; then
@@ -33,7 +46,7 @@ trace_libc_inet_pton_backtrace() {
                         exit 1
                 fi
                 let idx+=1
-                [ $idx -eq 9 ] && break
+                [ -z "${expected[$idx]}" ] && break
         done
 }
 
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 286427975112..fbf927cf775d 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -327,7 +327,32 @@ static void annotate_browser__draw_current_jump(struct ui_browser *browser)
         if (!disasm_line__is_valid_jump(cursor, sym))
                 return;
 
+        /*
+         * This first was seen with a gcc function, _cpp_lex_token, that
+         * has the usual jumps:
+         *
+         *  │1159e6c: ↓ jne    115aa32 <_cpp_lex_token@@Base+0xf92>
+         *
+         * I.e. jumps to a label inside that function (_cpp_lex_token), and
+         * those works, but also this kind:
+         *
+         *  │1159e8b: ↓ jne    c469be <cpp_named_operator2name@@Base+0xa72>
+         *
+         *  I.e. jumps to another function, outside _cpp_lex_token, which
+         *  are not being correctly handled generating as a side effect references
+         *  to ab->offset[] entries that are set to NULL, so to make this code
+         *  more robust, check that here.
+         *
+         *  A proper fix for will be put in place, looking at the function
+         *  name right after the '<' token and probably treating this like a
+         *  'call' instruction.
+         */
         target = ab->offsets[cursor->ops.target.offset];
+        if (target == NULL) {
+                ui_helpline__printf("WARN: jump target inconsistency, press 'o', ab->offsets[%#x] = NULL\n",
+                                    cursor->ops.target.offset);
+                return;
+        }
 
         bcursor = browser_line(&cursor->al);
         btarget = browser_line(target);
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 68146f4620a5..6495ee55d9c3 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -608,7 +608,8 @@ static int hist_browser__title(struct hist_browser *browser, char *bf, size_t si
         return browser->title ? browser->title(browser, bf, size) : 0;
 }
 
-int hist_browser__run(struct hist_browser *browser, const char *help)
+int hist_browser__run(struct hist_browser *browser, const char *help,
+                      bool warn_lost_event)
 {
         int key;
         char title[160];
@@ -638,8 +639,9 @@ int hist_browser__run(struct hist_browser *browser, const char *help)
                         nr_entries = hist_browser__nr_entries(browser);
                         ui_browser__update_nr_entries(&browser->b, nr_entries);
 
-                        if (browser->hists->stats.nr_lost_warned !=
-                            browser->hists->stats.nr_events[PERF_RECORD_LOST]) {
+                        if (warn_lost_event &&
+                            (browser->hists->stats.nr_lost_warned !=
+                            browser->hists->stats.nr_events[PERF_RECORD_LOST])) {
                                 browser->hists->stats.nr_lost_warned =
                                         browser->hists->stats.nr_events[PERF_RECORD_LOST];
                                 ui_browser__warn_lost_events(&browser->b);
@@ -2763,7 +2765,8 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
                                     bool left_exits,
                                     struct hist_browser_timer *hbt,
                                     float min_pcnt,
-                                    struct perf_env *env)
+                                    struct perf_env *env,
+                                    bool warn_lost_event)
 {
         struct hists *hists = evsel__hists(evsel);
         struct hist_browser *browser = perf_evsel_browser__new(evsel, hbt, env);
@@ -2844,7 +2847,8 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 
                 nr_options = 0;
 
-                key = hist_browser__run(browser, helpline);
+                key = hist_browser__run(browser, helpline,
+                                        warn_lost_event);
 
                 if (browser->he_selection != NULL) {
                         thread = hist_browser__selected_thread(browser);
@@ -3184,7 +3188,8 @@ static void perf_evsel_menu__write(struct ui_browser *browser,
 
 static int perf_evsel_menu__run(struct perf_evsel_menu *menu,
                                 int nr_events, const char *help,
-                                struct hist_browser_timer *hbt)
+                                struct hist_browser_timer *hbt,
+                                bool warn_lost_event)
 {
         struct perf_evlist *evlist = menu->b.priv;
         struct perf_evsel *pos;
@@ -3203,7 +3208,9 @@ static int perf_evsel_menu__run(struct perf_evsel_menu *menu,
                 case K_TIMER:
                         hbt->timer(hbt->arg);
 
-                        if (!menu->lost_events_warned && menu->lost_events) {
+                        if (!menu->lost_events_warned &&
+                            menu->lost_events &&
+                            warn_lost_event) {
                                 ui_browser__warn_lost_events(&menu->b);
                                 menu->lost_events_warned = true;
                         }
@@ -3224,7 +3231,8 @@ browse_hists:
                         key = perf_evsel__hists_browse(pos, nr_events, help,
                                                        true, hbt,
                                                        menu->min_pcnt,
-                                                       menu->env);
+                                                       menu->env,
+                                                       warn_lost_event);
                         ui_browser__show_title(&menu->b, title);
                         switch (key) {
                         case K_TAB:
@@ -3282,7 +3290,8 @@ static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
                                            int nr_entries, const char *help,
                                            struct hist_browser_timer *hbt,
                                            float min_pcnt,
-                                           struct perf_env *env)
+                                           struct perf_env *env,
+                                           bool warn_lost_event)
 {
         struct perf_evsel *pos;
         struct perf_evsel_menu menu = {
@@ -3309,13 +3318,15 @@ static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
                         menu.b.width = line_len;
         }
 
-        return perf_evsel_menu__run(&menu, nr_entries, help, hbt);
+        return perf_evsel_menu__run(&menu, nr_entries, help,
+                                    hbt, warn_lost_event);
 }
 
 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
                                   struct hist_browser_timer *hbt,
                                   float min_pcnt,
-                                  struct perf_env *env)
+                                  struct perf_env *env,
+                                  bool warn_lost_event)
 {
         int nr_entries = evlist->nr_entries;
 
@@ -3325,7 +3336,7 @@ single_entry:
 
                 return perf_evsel__hists_browse(first, nr_entries, help,
                                                 false, hbt, min_pcnt,
-                                                env);
+                                                env, warn_lost_event);
         }
 
         if (symbol_conf.event_group) {
@@ -3342,5 +3353,6 @@ single_entry:
         }
 
         return __perf_evlist__tui_browse_hists(evlist, nr_entries, help,
-                                               hbt, min_pcnt, env);
+                                               hbt, min_pcnt, env,
+                                               warn_lost_event);
 }
diff --git a/tools/perf/ui/browsers/hists.h b/tools/perf/ui/browsers/hists.h
index ba431777f559..9428bee076f2 100644
--- a/tools/perf/ui/browsers/hists.h
+++ b/tools/perf/ui/browsers/hists.h
@@ -28,7 +28,8 @@ struct hist_browser {
 
 struct hist_browser *hist_browser__new(struct hists *hists);
 void hist_browser__delete(struct hist_browser *browser);
-int hist_browser__run(struct hist_browser *browser, const char *help);
+int hist_browser__run(struct hist_browser *browser, const char *help,
+                      bool warn_lost_event);
 void hist_browser__init(struct hist_browser *browser,
                         struct hists *hists);
 #endif /* _PERF_UI_BROWSER_HISTS_H_ */
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 9faf3b5367db..6470ea2aa25e 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -60,6 +60,12 @@
 #include "sane_ctype.h"
 #include "symbol/kallsyms.h"
 
+static bool auxtrace__dont_decode(struct perf_session *session)
+{
+        return !session->itrace_synth_opts ||
+               session->itrace_synth_opts->dont_decode;
+}
+
 int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
                         struct auxtrace_mmap_params *mp,
                         void *userpg, int fd)
@@ -762,6 +768,9 @@ int auxtrace_queues__process_index(struct auxtrace_queues *queues,
         size_t i;
         int err;
 
+        if (auxtrace__dont_decode(session))
+                return 0;
+
         list_for_each_entry(auxtrace_index, &session->auxtrace_index, list) {
                 for (i = 0; i < auxtrace_index->nr; i++) {
                         ent = &auxtrace_index->entries[i];
@@ -892,12 +901,6 @@ out_free:
         return err;
 }
 
-static bool auxtrace__dont_decode(struct perf_session *session)
-{
-        return !session->itrace_synth_opts ||
-               session->itrace_synth_opts->dont_decode;
-}
-
 int perf_event__process_auxtrace_info(struct perf_tool *tool __maybe_unused,
                                       union perf_event *event,
                                       struct perf_session *session)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index ac35cd214feb..e5fc14e53c05 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -715,28 +715,11 @@ union perf_event *perf_evlist__mmap_read_forward(struct perf_evlist *evlist, int
         return perf_mmap__read_forward(md);
 }
 
-union perf_event *perf_evlist__mmap_read_backward(struct perf_evlist *evlist, int idx)
-{
-        struct perf_mmap *md = &evlist->mmap[idx];
-
-        /*
-         * No need to check messup for backward ring buffer:
-         * We can always read arbitrary long data from a backward
-         * ring buffer unless we forget to pause it before reading.
-         */
-        return perf_mmap__read_backward(md);
-}
-
 union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx)
 {
         return perf_evlist__mmap_read_forward(evlist, idx);
 }
 
-void perf_evlist__mmap_read_catchup(struct perf_evlist *evlist, int idx)
-{
-        perf_mmap__read_catchup(&evlist->mmap[idx]);
-}
-
 void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx)
 {
         perf_mmap__consume(&evlist->mmap[idx], false);
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 75f8e0ad5d76..336b838e6957 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -133,10 +133,6 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);
 
 union perf_event *perf_evlist__mmap_read_forward(struct perf_evlist *evlist,
                                                  int idx);
-union perf_event *perf_evlist__mmap_read_backward(struct perf_evlist *evlist,
-                                                  int idx);
-void perf_evlist__mmap_read_catchup(struct perf_evlist *evlist, int idx);
-
 void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
 
 int perf_evlist__open(struct perf_evlist *evlist);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index ff359c9ece2e..ef351688b797 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -41,17 +41,7 @@
 
 #include "sane_ctype.h"
 
-static struct {
-        bool sample_id_all;
-        bool exclude_guest;
-        bool mmap2;
-        bool cloexec;
-        bool clockid;
-        bool clockid_wrong;
-        bool lbr_flags;
-        bool write_backward;
-        bool group_read;
-} perf_missing_features;
+struct perf_missing_features perf_missing_features;
 
 static clockid_t clockid;
 
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 846e41644525..a7487c6d1866 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -149,6 +149,20 @@ union u64_swap {
         u32 val32[2];
 };
 
+struct perf_missing_features {
+        bool sample_id_all;
+        bool exclude_guest;
+        bool mmap2;
+        bool cloexec;
+        bool clockid;
+        bool clockid_wrong;
+        bool lbr_flags;
+        bool write_backward;
+        bool group_read;
+};
+
+extern struct perf_missing_features perf_missing_features;
+
 struct cpu_map;
 struct target;
 struct thread_map;
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index f6630cb95eff..02721b579746 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -430,7 +430,8 @@ int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
                                   struct hist_browser_timer *hbt,
                                   float min_pcnt,
-                                  struct perf_env *env);
+                                  struct perf_env *env,
+                                  bool warn_lost_event);
 int script_browse(const char *script_opt);
 #else
 static inline
@@ -438,7 +439,8 @@ int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
                                   const char *help __maybe_unused,
                                   struct hist_browser_timer *hbt __maybe_unused,
                                   float min_pcnt __maybe_unused,
-                                  struct perf_env *env __maybe_unused)
+                                  struct perf_env *env __maybe_unused,
+                                  bool warn_lost_event __maybe_unused)
 {
         return 0;
 }
diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
index 05076e683938..91531a7c8fbf 100644
--- a/tools/perf/util/mmap.c
+++ b/tools/perf/util/mmap.c
@@ -22,29 +22,27 @@ size_t perf_mmap__mmap_len(struct perf_mmap *map)
 
 /* When check_messup is true, 'end' must points to a good entry */
 static union perf_event *perf_mmap__read(struct perf_mmap *map,
-                                         u64 start, u64 end, u64 *prev)
+                                         u64 *startp, u64 end)
 {
         unsigned char *data = map->base + page_size;
         union perf_event *event = NULL;
-        int diff = end - start;
+        int diff = end - *startp;
 
         if (diff >= (int)sizeof(event->header)) {
                 size_t size;
 
-                event = (union perf_event *)&data[start & map->mask];
+                event = (union perf_event *)&data[*startp & map->mask];
                 size = event->header.size;
 
-                if (size < sizeof(event->header) || diff < (int)size) {
-                        event = NULL;
-                        goto broken_event;
-                }
+                if (size < sizeof(event->header) || diff < (int)size)
+                        return NULL;
 
                 /*
                  * Event straddles the mmap boundary -- header should always
                  * be inside due to u64 alignment of output.
                  */
-                if ((start & map->mask) + size != ((start + size) & map->mask)) {
-                        unsigned int offset = start;
+                if ((*startp & map->mask) + size != ((*startp + size) & map->mask)) {
+                        unsigned int offset = *startp;
                         unsigned int len = min(sizeof(*event), size), cpy;
                         void *dst = map->event_copy;
 
@@ -59,20 +57,19 @@ static union perf_event *perf_mmap__read(struct perf_mmap *map,
                         event = (union perf_event *)map->event_copy;
                 }
 
-                start += size;
+                *startp += size;
         }
 
-broken_event:
-        if (prev)
-                *prev = start;
-
         return event;
 }
 
+/*
+ * legacy interface for mmap read.
+ * Don't use it. Use perf_mmap__read_event().
+ */
 union perf_event *perf_mmap__read_forward(struct perf_mmap *map)
 {
         u64 head;
-        u64 old = map->prev;
 
         /*
          * Check if event was unmapped due to a POLLHUP/POLLERR.
@@ -82,13 +79,26 @@ union perf_event *perf_mmap__read_forward(struct perf_mmap *map)
 
         head = perf_mmap__read_head(map);
 
-        return perf_mmap__read(map, old, head, &map->prev);
+        return perf_mmap__read(map, &map->prev, head);
 }
 
-union perf_event *perf_mmap__read_backward(struct perf_mmap *map)
+/*
+ * Read event from ring buffer one by one.
+ * Return one event for each call.
+ *
+ * Usage:
+ * perf_mmap__read_init()
+ * while(event = perf_mmap__read_event()) {
+ *      //process the event
+ *      perf_mmap__consume()
+ * }
+ * perf_mmap__read_done()
+ */
+union perf_event *perf_mmap__read_event(struct perf_mmap *map,
+                                        bool overwrite,
+                                        u64 *startp, u64 end)
 {
-        u64 head, end;
-        u64 start = map->prev;
+        union perf_event *event;
 
         /*
          * Check if event was unmapped due to a POLLHUP/POLLERR.
@@ -96,40 +106,19 @@ union perf_event *perf_mmap__read_backward(struct perf_mmap *map)
         if (!refcount_read(&map->refcnt))
                 return NULL;
 
-        head = perf_mmap__read_head(map);
-        if (!head)
+        if (startp == NULL)
                 return NULL;
 
-        /*
-         * 'head' pointer starts from 0. Kernel minus sizeof(record) form
-         * it each time when kernel writes to it, so in fact 'head' is
-         * negative. 'end' pointer is made manually by adding the size of
-         * the ring buffer to 'head' pointer, means the validate data can
-         * read is the whole ring buffer. If 'end' is positive, the ring
-         * buffer has not fully filled, so we must adjust 'end' to 0.
-         *
-         * However, since both 'head' and 'end' is unsigned, we can't
-         * simply compare 'end' against 0. Here we compare '-head' and
-         * the size of the ring buffer, where -head is the number of bytes
-         * kernel write to the ring buffer.
-         */
-        if (-head < (u64)(map->mask + 1))
-                end = 0;
-        else
-                end = head + map->mask + 1;
-
-        return perf_mmap__read(map, start, end, &map->prev);
-}
+        /* non-overwirte doesn't pause the ringbuffer */
+        if (!overwrite)
+                end = perf_mmap__read_head(map);
 
-void perf_mmap__read_catchup(struct perf_mmap *map)
-{
-        u64 head;
+        event = perf_mmap__read(map, startp, end);
 
-        if (!refcount_read(&map->refcnt))
-                return;
+        if (!overwrite)
+                map->prev = *startp;
 
-        head = perf_mmap__read_head(map);
-        map->prev = head;
+        return event;
 }
 
 static bool perf_mmap__empty(struct perf_mmap *map)
@@ -267,41 +256,60 @@ static int overwrite_rb_find_range(void *buf, int mask, u64 head, u64 *start, u6
         return -1;
 }
 
-int perf_mmap__push(struct perf_mmap *md, bool overwrite,
-                    void *to, int push(void *to, void *buf, size_t size))
+/*
+ * Report the start and end of the available data in ringbuffer
+ */
+int perf_mmap__read_init(struct perf_mmap *md, bool overwrite,
+                         u64 *startp, u64 *endp)
 {
         u64 head = perf_mmap__read_head(md);
         u64 old = md->prev;
-        u64 end = head, start = old;
         unsigned char *data = md->base + page_size;
         unsigned long size;
-        void *buf;
-        int rc = 0;
 
-        start = overwrite ? head : old;
-        end = overwrite ? old : head;
+        *startp = overwrite ? head : old;
+        *endp = overwrite ? old : head;
 
-        if (start == end)
-                return 0;
+        if (*startp == *endp)
+                return -EAGAIN;
 
-        size = end - start;
+        size = *endp - *startp;
         if (size > (unsigned long)(md->mask) + 1) {
                 if (!overwrite) {
                         WARN_ONCE(1, "failed to keep up with mmap data. (warn only once)\n");
 
                         md->prev = head;
                         perf_mmap__consume(md, overwrite);
-                        return 0;
+                        return -EAGAIN;
                 }
 
                 /*
                  * Backward ring buffer is full. We still have a chance to read
                  * most of data from it.
                  */
-                if (overwrite_rb_find_range(data, md->mask, head, &start, &end))
-                        return -1;
+                if (overwrite_rb_find_range(data, md->mask, head, startp, endp))
+                        return -EINVAL;
         }
 
+        return 0;
+}
+
+int perf_mmap__push(struct perf_mmap *md, bool overwrite,
+                    void *to, int push(void *to, void *buf, size_t size))
+{
+        u64 head = perf_mmap__read_head(md);
+        u64 end, start;
+        unsigned char *data = md->base + page_size;
+        unsigned long size;
+        void *buf;
+        int rc = 0;
+
+        rc = perf_mmap__read_init(md, overwrite, &start, &end);
+        if (rc < 0)
+                return (rc == -EAGAIN) ? 0 : -1;
+
+        size = end - start;
+
         if ((start & md->mask) + size != (end & md->mask)) {
                 buf = &data[start & md->mask];
                 size = md->mask + 1 - (start & md->mask);
@@ -327,3 +335,14 @@ int perf_mmap__push(struct perf_mmap *md, bool overwrite,
 out:
         return rc;
 }
+
+/*
+ * Mandatory for overwrite mode
+ * The direction of overwrite mode is backward.
+ * The last perf_mmap__read() will set tail to map->prev.
+ * Need to correct the map->prev to head which is the end of next read.
+ */
+void perf_mmap__read_done(struct perf_mmap *map)
+{
+        map->prev = perf_mmap__read_head(map);
+}
diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h
index e43d7b55a55f..ec7d3a24e276 100644
--- a/tools/perf/util/mmap.h
+++ b/tools/perf/util/mmap.h
@@ -65,8 +65,6 @@ void perf_mmap__put(struct perf_mmap *map);
 
 void perf_mmap__consume(struct perf_mmap *map, bool overwrite);
 
-void perf_mmap__read_catchup(struct perf_mmap *md);
-
 static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
 {
         struct perf_event_mmap_page *pc = mm->base;
@@ -87,11 +85,17 @@ static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
 }
 
 union perf_event *perf_mmap__read_forward(struct perf_mmap *map);
-union perf_event *perf_mmap__read_backward(struct perf_mmap *map);
+
+union perf_event *perf_mmap__read_event(struct perf_mmap *map,
+                                        bool overwrite,
+                                        u64 *startp, u64 end);
 
 int perf_mmap__push(struct perf_mmap *md, bool backward,
                     void *to, int push(void *to, void *buf, size_t size));
 
 size_t perf_mmap__mmap_len(struct perf_mmap *map);
 
+int perf_mmap__read_init(struct perf_mmap *md, bool overwrite,
+                         u64 *startp, u64 *endp);
+void perf_mmap__read_done(struct perf_mmap *map);
 #endif /*__PERF_MMAP_H */
diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c
index 1e97937b03a9..6f09e4962dad 100644
--- a/tools/perf/util/record.c
+++ b/tools/perf/util/record.c
@@ -137,6 +137,7 @@ void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts,
         struct perf_evsel *evsel;
         bool use_sample_identifier = false;
         bool use_comm_exec;
+        bool sample_id = opts->sample_id;
 
         /*
          * Set the evsel leader links before we configure attributes,
@@ -163,8 +164,7 @@ void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts,
                  * match the id.
                  */
                 use_sample_identifier = perf_can_sample_identifier();
-                evlist__for_each_entry(evlist, evsel)
-                        perf_evsel__set_sample_id(evsel, use_sample_identifier);
+                sample_id = true;
         } else if (evlist->nr_entries > 1) {
                 struct perf_evsel *first = perf_evlist__first(evlist);
 
@@ -174,6 +174,10 @@ void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts,
                         use_sample_identifier = perf_can_sample_identifier();
                         break;
                 }
+                sample_id = true;
+        }
+
+        if (sample_id) {
                 evlist__for_each_entry(evlist, evsel)
                         perf_evsel__set_sample_id(evsel, use_sample_identifier);
         }
diff --git a/tools/perf/util/trigger.h b/tools/perf/util/trigger.h
index 370138e7e35c..88223bc7c82b 100644
--- a/tools/perf/util/trigger.h
+++ b/tools/perf/util/trigger.h
@@ -12,7 +12,7 @@
  * States and transits:
  *
  *
- *  OFF--(on)--> READY --(hit)--> HIT
+ *  OFF--> ON --> READY --(hit)--> HIT
  *                 ^               |
  *                 |            (ready)
  *                 |               |
@@ -27,8 +27,9 @@ struct trigger {
         volatile enum {
                 TRIGGER_ERROR           = -2,
                 TRIGGER_OFF             = -1,
-                TRIGGER_READY           = 0,
-                TRIGGER_HIT             = 1,
+                TRIGGER_ON              = 0,
+                TRIGGER_READY           = 1,
+                TRIGGER_HIT             = 2,
         } state;
         const char *name;
 };
@@ -50,7 +51,7 @@ static inline bool trigger_is_error(struct trigger *t)
 static inline void trigger_on(struct trigger *t)
 {
         TRIGGER_WARN_ONCE(t, TRIGGER_OFF);
-        t->state = TRIGGER_READY;
+        t->state = TRIGGER_ON;
 }
 
 static inline void trigger_ready(struct trigger *t)
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 443892dabedb..1019bbc5dbd8 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -340,35 +340,15 @@ size_t hex_width(u64 v)
         return n;
 }
 
-static int hex(char ch)
-{
-        if ((ch >= '0') && (ch <= '9'))
-                return ch - '0';
-        if ((ch >= 'a') && (ch <= 'f'))
-                return ch - 'a' + 10;
-        if ((ch >= 'A') && (ch <= 'F'))
-                return ch - 'A' + 10;
-        return -1;
-}
-
 /*
  * While we find nice hex chars, build a long_val.
  * Return number of chars processed.
  */
 int hex2u64(const char *ptr, u64 *long_val)
 {
-        const char *p = ptr;
-        *long_val = 0;
-
-        while (*p) {
-                const int hex_val = hex(*p);
+        char *p;
 
-                if (hex_val < 0)
-                        break;
-
-                *long_val = (*long_val << 4) | hex_val;
-                p++;
-        }
+        *long_val = strtoull(ptr, &p, 16);
 
         return p - ptr;
 }
diff --git a/tools/power/acpi/Makefile.config b/tools/power/acpi/Makefile.config
index a1883bbb0144..2cccbba64418 100644
--- a/tools/power/acpi/Makefile.config
+++ b/tools/power/acpi/Makefile.config
@@ -56,9 +56,6 @@ INSTALL_SCRIPT = ${INSTALL_PROGRAM}
 # to compile vs uClibc, that can be done here as well.
 CROSS = #/usr/i386-linux-uclibc/usr/bin/i386-uclibc-
 CROSS_COMPILE ?= $(CROSS)
-CC = $(CROSS_COMPILE)gcc
-LD = $(CROSS_COMPILE)gcc
-STRIP = $(CROSS_COMPILE)strip
 HOSTCC = gcc
 
 # check if compiler option is supported
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index fcb3ed0be5f8..dd614463d4d6 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -42,6 +42,24 @@ EXTRA_WARNINGS += -Wformat
 
 CC_NO_CLANG := $(shell $(CC) -dM -E -x c /dev/null | grep -Fq "__clang__"; echo $$?)
 
+# Makefiles suck: This macro sets a default value of $(2) for the
+# variable named by $(1), unless the variable has been set by
+# environment or command line. This is necessary for CC and AR
+# because make sets default values, so the simpler ?= approach
+# won't work as expected.
+define allow-override
+  $(if $(or $(findstring environment,$(origin $(1))),\
+            $(findstring command line,$(origin $(1)))),,\
+    $(eval $(1) = $(2)))
+endef
+
+# Allow setting various cross-compile vars or setting CROSS_COMPILE as a prefix.
+$(call allow-override,CC,$(CROSS_COMPILE)gcc)
+$(call allow-override,AR,$(CROSS_COMPILE)ar)
+$(call allow-override,LD,$(CROSS_COMPILE)ld)
+$(call allow-override,CXX,$(CROSS_COMPILE)g++)
+$(call allow-override,STRIP,$(CROSS_COMPILE)strip)
+
 ifeq ($(CC_NO_CLANG), 1)
 EXTRA_WARNINGS += -Wstrict-aliasing=3
 endif
diff --git a/tools/spi/Makefile b/tools/spi/Makefile
index 90615e10c79a..815d15589177 100644
--- a/tools/spi/Makefile
+++ b/tools/spi/Makefile
@@ -11,8 +11,6 @@ endif
 # (this improves performance and avoids hard-to-debug behaviour);
 MAKEFLAGS += -r
 
-CC = $(CROSS_COMPILE)gcc
-LD = $(CROSS_COMPILE)ld
 CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
 
 ALL_TARGETS := spidev_test spidev_fdx
diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c
index 44ef9eba5a7a..6c645eb77d42 100644
--- a/tools/testing/radix-tree/idr-test.c
+++ b/tools/testing/radix-tree/idr-test.c
@@ -178,6 +178,55 @@ void idr_get_next_test(int base)
         idr_destroy(&idr);
 }
 
+int idr_u32_cb(int id, void *ptr, void *data)
+{
+        BUG_ON(id < 0);
+        BUG_ON(ptr != DUMMY_PTR);
+        return 0;
+}
+
+void idr_u32_test1(struct idr *idr, u32 handle)
+{
+        static bool warned = false;
+        u32 id = handle;
+        int sid = 0;
+        void *ptr;
+
+        BUG_ON(idr_alloc_u32(idr, DUMMY_PTR, &id, id, GFP_KERNEL));
+        BUG_ON(id != handle);
+        BUG_ON(idr_alloc_u32(idr, DUMMY_PTR, &id, id, GFP_KERNEL) != -ENOSPC);
+        BUG_ON(id != handle);
+        if (!warned && id > INT_MAX)
+                printk("vvv Ignore these warnings\n");
+        ptr = idr_get_next(idr, &sid);
+        if (id > INT_MAX) {
+                BUG_ON(ptr != NULL);
+                BUG_ON(sid != 0);
+        } else {
+                BUG_ON(ptr != DUMMY_PTR);
+                BUG_ON(sid != id);
+        }
+        idr_for_each(idr, idr_u32_cb, NULL);
+        if (!warned && id > INT_MAX) {
+                printk("^^^ Warnings over\n");
+                warned = true;
+        }
+        BUG_ON(idr_remove(idr, id) != DUMMY_PTR);
+        BUG_ON(!idr_is_empty(idr));
+}
+
+void idr_u32_test(int base)
+{
+        DEFINE_IDR(idr);
+        idr_init_base(&idr, base);
+        idr_u32_test1(&idr, 10);
+        idr_u32_test1(&idr, 0x7fffffff);
+        idr_u32_test1(&idr, 0x80000000);
+        idr_u32_test1(&idr, 0x80000001);
+        idr_u32_test1(&idr, 0xffe00000);
+        idr_u32_test1(&idr, 0xffffffff);
+}
+
 void idr_checks(void)
 {
         unsigned long i;
@@ -248,6 +297,9 @@ void idr_checks(void)
         idr_get_next_test(0);
         idr_get_next_test(1);
         idr_get_next_test(4);
+        idr_u32_test(4);
+        idr_u32_test(1);
+        idr_u32_test(0);
 }
 
 /*
diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/radix-tree/linux.c
index 6903ccf35595..44a0d1ad4408 100644
--- a/tools/testing/radix-tree/linux.c
+++ b/tools/testing/radix-tree/linux.c
@@ -29,7 +29,7 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, int flags)
 {
         struct radix_tree_node *node;
 
-        if (flags & __GFP_NOWARN)
+        if (!(flags & __GFP_DIRECT_RECLAIM))
                 return NULL;
 
         pthread_mutex_lock(&cachep->lock);
@@ -73,10 +73,17 @@ void kmem_cache_free(struct kmem_cache *cachep, void *objp)
 
 void *kmalloc(size_t size, gfp_t gfp)
 {
-        void *ret = malloc(size);
+        void *ret;
+
+        if (!(gfp & __GFP_DIRECT_RECLAIM))
+                return NULL;
+
+        ret = malloc(size);
         uatomic_inc(&nr_allocated);
         if (kmalloc_verbose)
                 printf("Allocating %p from malloc\n", ret);
+        if (gfp & __GFP_ZERO)
+                memset(ret, 0, size);
         return ret;
 }
 
diff --git a/tools/testing/radix-tree/linux/compiler_types.h b/tools/testing/radix-tree/linux/compiler_types.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/radix-tree/linux/compiler_types.h
diff --git a/tools/testing/radix-tree/linux/gfp.h b/tools/testing/radix-tree/linux/gfp.h
index e9fff59dfd8a..e3201ccf54c3 100644
--- a/tools/testing/radix-tree/linux/gfp.h
+++ b/tools/testing/radix-tree/linux/gfp.h
@@ -11,6 +11,7 @@
 #define __GFP_IO                0x40u
 #define __GFP_FS                0x80u
 #define __GFP_NOWARN            0x200u
+#define __GFP_ZERO              0x8000u
 #define __GFP_ATOMIC            0x80000u
 #define __GFP_ACCOUNT           0x100000u
 #define __GFP_DIRECT_RECLAIM    0x400000u
diff --git a/tools/testing/radix-tree/linux/slab.h b/tools/testing/radix-tree/linux/slab.h
index 979baeec7e70..a037def0dec6 100644
--- a/tools/testing/radix-tree/linux/slab.h
+++ b/tools/testing/radix-tree/linux/slab.h
@@ -3,6 +3,7 @@
 #define SLAB_H
 
 #include <linux/types.h>
+#include <linux/gfp.h>
 
 #define SLAB_HWCACHE_ALIGN 1
 #define SLAB_PANIC 2
@@ -11,6 +12,11 @@
 void *kmalloc(size_t size, gfp_t);
 void kfree(void *);
 
+static inline void *kzalloc(size_t size, gfp_t gfp)
+{
+        return kmalloc(size, gfp | __GFP_ZERO);
+}
+
 void *kmem_cache_alloc(struct kmem_cache *cachep, int flags);
 void kmem_cache_free(struct kmem_cache *cachep, void *objp);
 
diff --git a/tools/testing/selftests/android/Makefile b/tools/testing/selftests/android/Makefile
index 1a7492268993..f6304d2be90c 100644
--- a/tools/testing/selftests/android/Makefile
+++ b/tools/testing/selftests/android/Makefile
@@ -11,11 +11,11 @@ all:
                 BUILD_TARGET=$(OUTPUT)/$$DIR;   \
                 mkdir $$BUILD_TARGET  -p;       \
                 make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
-                #SUBDIR test prog name should be in the form: SUBDIR_test.sh
+                #SUBDIR test prog name should be in the form: SUBDIR_test.sh \
                 TEST=$$DIR"_test.sh"; \
-                if [ -e $$DIR/$$TEST ]; then
-                        rsync -a $$DIR/$$TEST $$BUILD_TARGET/;
-                fi
+                if [ -e $$DIR/$$TEST ]; then \
+                        rsync -a $$DIR/$$TEST $$BUILD_TARGET/; \
+                fi \
         done
 
 override define RUN_TESTS
diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore
index cc15af2e54fe..9cf83f895d98 100644
--- a/tools/testing/selftests/bpf/.gitignore
+++ b/tools/testing/selftests/bpf/.gitignore
@@ -11,3 +11,4 @@ test_progs
 test_tcpbpf_user
 test_verifier_log
 feature
+test_libbpf_open
diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c
index 436c4c72414f..9e03a4c356a4 100644
--- a/tools/testing/selftests/bpf/test_maps.c
+++ b/tools/testing/selftests/bpf/test_maps.c
@@ -126,6 +126,8 @@ static void test_hashmap_sizes(int task, void *data)
                         fd = bpf_create_map(BPF_MAP_TYPE_HASH, i, j,
                                             2, map_flags);
                         if (fd < 0) {
+                                if (errno == ENOMEM)
+                                        return;
                                 printf("Failed to create hashmap key=%d value=%d '%s'\n",
                                        i, j, strerror(errno));
                                 exit(1);
diff --git a/tools/testing/selftests/bpf/test_tcpbpf_kern.c b/tools/testing/selftests/bpf/test_tcpbpf_kern.c
index 57119ad57a3f..3e645ee41ed5 100644
--- a/tools/testing/selftests/bpf/test_tcpbpf_kern.c
+++ b/tools/testing/selftests/bpf/test_tcpbpf_kern.c
@@ -5,7 +5,6 @@
 #include <linux/if_ether.h>
 #include <linux/if_packet.h>
 #include <linux/ip.h>
-#include <linux/in6.h>
 #include <linux/types.h>
 #include <linux/socket.h>
 #include <linux/tcp.h>
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index c0f16e93f9bd..437c0b1c9d21 100644
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -2587,6 +2587,32 @@ static struct bpf_test tests[] = {
                 .result = ACCEPT,
         },
         {
+                "runtime/jit: pass negative index to tail_call",
+                .insns = {
+                        BPF_MOV64_IMM(BPF_REG_3, -1),
+                        BPF_LD_MAP_FD(BPF_REG_2, 0),
+                        BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                     BPF_FUNC_tail_call),
+                        BPF_MOV64_IMM(BPF_REG_0, 0),
+                        BPF_EXIT_INSN(),
+                },
+                .fixup_prog = { 1 },
+                .result = ACCEPT,
+        },
+        {
+                "runtime/jit: pass > 32bit index to tail_call",
+                .insns = {
+                        BPF_LD_IMM64(BPF_REG_3, 0x100000000ULL),
+                        BPF_LD_MAP_FD(BPF_REG_2, 0),
+                        BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                     BPF_FUNC_tail_call),
+                        BPF_MOV64_IMM(BPF_REG_0, 0),
+                        BPF_EXIT_INSN(),
+                },
+                .fixup_prog = { 2 },
+                .result = ACCEPT,
+        },
+        {
                 "stack pointer arithmetic",
                 .insns = {
                         BPF_MOV64_IMM(BPF_REG_1, 4),
@@ -11137,6 +11163,64 @@ static struct bpf_test tests[] = {
                 .result = REJECT,
                 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
         },
+        {
+                "xadd/w check unaligned stack",
+                .insns = {
+                        BPF_MOV64_IMM(BPF_REG_0, 1),
+                        BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+                        BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -7),
+                        BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+                        BPF_EXIT_INSN(),
+                },
+                .result = REJECT,
+                .errstr = "misaligned stack access off",
+                .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+        },
+        {
+                "xadd/w check unaligned map",
+                .insns = {
+                        BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+                        BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+                        BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+                        BPF_LD_MAP_FD(BPF_REG_1, 0),
+                        BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+                                     BPF_FUNC_map_lookup_elem),
+                        BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+                        BPF_EXIT_INSN(),
+                        BPF_MOV64_IMM(BPF_REG_1, 1),
+                        BPF_STX_XADD(BPF_W, BPF_REG_0, BPF_REG_1, 3),
+                        BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 3),
+                        BPF_EXIT_INSN(),
+                },
+                .fixup_map1 = { 3 },
+                .result = REJECT,
+                .errstr = "misaligned value access off",
+                .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+        },
+        {
+                "xadd/w check unaligned pkt",
+                .insns = {
+                        BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+                                    offsetof(struct xdp_md, data)),
+                        BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+                                    offsetof(struct xdp_md, data_end)),
+                        BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+                        BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+                        BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 2),
+                        BPF_MOV64_IMM(BPF_REG_0, 99),
+                        BPF_JMP_IMM(BPF_JA, 0, 0, 6),
+                        BPF_MOV64_IMM(BPF_REG_0, 1),
+                        BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+                        BPF_ST_MEM(BPF_W, BPF_REG_2, 3, 0),
+                        BPF_STX_XADD(BPF_W, BPF_REG_2, BPF_REG_0, 1),
+                        BPF_STX_XADD(BPF_W, BPF_REG_2, BPF_REG_0, 2),
+                        BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 1),
+                        BPF_EXIT_INSN(),
+                },
+                .result = REJECT,
+                .errstr = "BPF_XADD stores into R2 packet",
+                .prog_type = BPF_PROG_TYPE_XDP,
+        },
 };
 
 static int probe_filter_length(const struct bpf_insn *fp)
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
new file mode 100644
index 000000000000..5ba73035e1d9
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
@@ -0,0 +1,46 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event string type argument
+
+[ -f kprobe_events ] || exit_unsupported # this is configurable
+
+echo 0 > events/enable
+echo > kprobe_events
+
+case `uname -m` in
+x86_64)
+  ARG2=%si
+  OFFS=8
+;;
+i[3456]86)
+  ARG2=%cx
+  OFFS=4
+;;
+aarch64)
+  ARG2=%x1
+  OFFS=8
+;;
+arm*)
+  ARG2=%r1
+  OFFS=4
+;;
+*)
+  echo "Please implement other architecture here"
+  exit_untested
+esac
+
+: "Test get argument (1)"
+echo "p:testprobe create_trace_kprobe arg1=+0(+0(${ARG2})):string" > kprobe_events
+echo 1 > events/kprobes/testprobe/enable
+! echo test >> kprobe_events
+tail -n 1 trace | grep -qe "testprobe.* arg1=\"test\""
+
+echo 0 > events/kprobes/testprobe/enable
+: "Test get argument (2)"
+echo "p:testprobe create_trace_kprobe arg1=+0(+0(${ARG2})):string arg2=+0(+${OFFS}(${ARG2})):string" > kprobe_events
+echo 1 > events/kprobes/testprobe/enable
+! echo test1 test2 >> kprobe_events
+tail -n 1 trace | grep -qe "testprobe.* arg1=\"test1\" arg2=\"test2\""
+
+echo 0 > events/enable
+echo > kprobe_events
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
new file mode 100644
index 000000000000..231bcd2c4eb5
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
@@ -0,0 +1,97 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event argument syntax
+
+[ -f kprobe_events ] || exit_unsupported # this is configurable
+
+grep "x8/16/32/64" README > /dev/null || exit_unsupported # version issue
+
+echo 0 > events/enable
+echo > kprobe_events
+
+PROBEFUNC="vfs_read"
+GOODREG=
+BADREG=
+GOODSYM="_sdata"
+if ! grep -qw ${GOODSYM} /proc/kallsyms ; then
+  GOODSYM=$PROBEFUNC
+fi
+BADSYM="deaqswdefr"
+SYMADDR=0x`grep -w ${GOODSYM} /proc/kallsyms | cut -f 1 -d " "`
+GOODTYPE="x16"
+BADTYPE="y16"
+
+case `uname -m` in
+x86_64|i[3456]86)
+  GOODREG=%ax
+  BADREG=%ex
+;;
+aarch64)
+  GOODREG=%x0
+  BADREG=%ax
+;;
+arm*)
+  GOODREG=%r0
+  BADREG=%ax
+;;
+esac
+
+test_goodarg() # Good-args
+{
+  while [ "$1" ]; do
+    echo "p ${PROBEFUNC} $1" > kprobe_events
+    shift 1
+  done;
+}
+
+test_badarg() # Bad-args
+{
+  while [ "$1" ]; do
+    ! echo "p ${PROBEFUNC} $1" > kprobe_events
+    shift 1
+  done;
+}
+
+echo > kprobe_events
+
+: "Register access"
+test_goodarg ${GOODREG}
+test_badarg ${BADREG}
+
+: "Symbol access"
+test_goodarg "@${GOODSYM}" "@${SYMADDR}" "@${GOODSYM}+10" "@${GOODSYM}-10"
+test_badarg "@" "@${BADSYM}" "@${GOODSYM}*10" "@${GOODSYM}/10" \
+            "@${GOODSYM}%10" "@${GOODSYM}&10" "@${GOODSYM}|10"
+
+: "Stack access"
+test_goodarg "\$stack" "\$stack0" "\$stack1"
+test_badarg "\$stackp" "\$stack0+10" "\$stack1-10"
+
+: "Retval access"
+echo "r ${PROBEFUNC} \$retval" > kprobe_events
+! echo "p ${PROBEFUNC} \$retval" > kprobe_events
+
+: "Comm access"
+test_goodarg "\$comm"
+
+: "Indirect memory access"
+test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \
+        "+0(\$stack1)" "+10(@${GOODSYM}-10)" "+0(+10(+20(\$stack)))"
+test_badarg "+(${GOODREG})" "(${GOODREG}+10)" "-(${GOODREG})" "(${GOODREG})" \
+        "+10(\$comm)" "+0(${GOODREG})+10"
+
+: "Name assignment"
+test_goodarg "varname=${GOODREG}"
+test_badarg "varname=varname2=${GOODREG}"
+
+: "Type syntax"
+test_goodarg "${GOODREG}:${GOODTYPE}"
+test_badarg "${GOODREG}::${GOODTYPE}" "${GOODREG}:${BADTYPE}" \
+        "${GOODTYPE}:${GOODREG}"
+
+: "Combination check"
+
+test_goodarg "\$comm:string" "+0(\$stack):string"
+test_badarg "\$comm:x64" "\$stack:string" "${GOODREG}:string"
+
+echo > kprobe_events
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc b/tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc
new file mode 100644
index 000000000000..4fda01a08da4
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc
@@ -0,0 +1,43 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe events - probe points
+
+[ -f kprobe_events ] || exit_unsupported # this is configurable
+
+TARGET_FUNC=create_trace_kprobe
+
+dec_addr() { # hexaddr
+  printf "%d" "0x"`echo $1 | tail -c 8`
+}
+
+set_offs() { # prev target next
+  A1=`dec_addr $1`
+  A2=`dec_addr $2`
+  A3=`dec_addr $3`
+  TARGET="0x$2" # an address
+  PREV=`expr $A1 - $A2` # offset to previous symbol
+  NEXT=+`expr $A3 - $A2` # offset to next symbol
+  OVERFLOW=+`printf "0x%x" ${PREV}` # overflow offset to previous symbol
+}
+
+# We have to decode symbol addresses to get correct offsets.
+# If the offset is not an instruction boundary, it cause -EILSEQ.
+set_offs `grep -A1 -B1 ${TARGET_FUNC} /proc/kallsyms | cut -f 1 -d " " | xargs`
+
+UINT_TEST=no
+# printf "%x" -1 returns (unsigned long)-1.
+if [ `printf "%x" -1 | wc -c` != 9 ]; then
+  UINT_TEST=yes
+fi
+
+echo 0 > events/enable
+echo > kprobe_events
+echo "p:testprobe ${TARGET_FUNC}" > kprobe_events
+echo "p:testprobe ${TARGET}" > kprobe_events
+echo "p:testprobe ${TARGET_FUNC}${NEXT}" > kprobe_events
+! echo "p:testprobe ${TARGET_FUNC}${PREV}" > kprobe_events
+if [ "${UINT_TEST}" = yes ]; then
+! echo "p:testprobe ${TARGET_FUNC}${OVERFLOW}" > kprobe_events
+fi
+echo > kprobe_events
+clear_trace
diff --git a/tools/testing/selftests/futex/Makefile b/tools/testing/selftests/futex/Makefile
index cea4adcd42b8..a63e8453984d 100644
--- a/tools/testing/selftests/futex/Makefile
+++ b/tools/testing/selftests/futex/Makefile
@@ -12,9 +12,9 @@ all:
                 BUILD_TARGET=$(OUTPUT)/$$DIR;   \
                 mkdir $$BUILD_TARGET  -p;       \
                 make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
-                if [ -e $$DIR/$(TEST_PROGS) ]; then
-                        rsync -a $$DIR/$(TEST_PROGS) $$BUILD_TARGET/;
-                fi
+                if [ -e $$DIR/$(TEST_PROGS) ]; then \
+                        rsync -a $$DIR/$(TEST_PROGS) $$BUILD_TARGET/; \
+                fi \
         done
 
 override define RUN_TESTS
diff --git a/tools/testing/selftests/memfd/Makefile b/tools/testing/selftests/memfd/Makefile
index a5276a91dfbf..0862e6f47a38 100644
--- a/tools/testing/selftests/memfd/Makefile
+++ b/tools/testing/selftests/memfd/Makefile
@@ -5,6 +5,7 @@ CFLAGS += -I../../../../include/
 CFLAGS += -I../../../../usr/include/
 
 TEST_PROGS := run_tests.sh
+TEST_FILES := run_fuse_test.sh
 TEST_GEN_FILES := memfd_test fuse_mnt fuse_test
 
 fuse_mnt.o: CFLAGS += $(shell pkg-config fuse --cflags)
diff --git a/tools/testing/selftests/memfd/config b/tools/testing/selftests/memfd/config
new file mode 100644
index 000000000000..835c7f4dadcd
--- /dev/null
+++ b/tools/testing/selftests/memfd/config
@@ -0,0 +1 @@
+CONFIG_FUSE_FS=m
diff --git a/tools/testing/selftests/memory-hotplug/Makefile b/tools/testing/selftests/memory-hotplug/Makefile
index 86636d207adf..686da510f989 100644
--- a/tools/testing/selftests/memory-hotplug/Makefile
+++ b/tools/testing/selftests/memory-hotplug/Makefile
@@ -4,8 +4,9 @@ all:
 include ../lib.mk
 
 TEST_PROGS := mem-on-off-test.sh
-override RUN_TESTS := ./mem-on-off-test.sh -r 2 && echo "selftests: memory-hotplug [PASS]" || echo "selftests: memory-hotplug [FAIL]"
-override EMIT_TESTS := echo "$(RUN_TESTS)"
+override RUN_TESTS := @./mem-on-off-test.sh -r 2 && echo "selftests: memory-hotplug [PASS]" || echo "selftests: memory-hotplug [FAIL]"
+
+override EMIT_TESTS := echo "$(subst @,,$(RUN_TESTS))"
 
 run_full_test:
         @/bin/bash ./mem-on-off-test.sh && echo "memory-hotplug selftests: [PASS]" || echo "memory-hotplug selftests: [FAIL]"
diff --git a/tools/testing/selftests/powerpc/alignment/alignment_handler.c b/tools/testing/selftests/powerpc/alignment/alignment_handler.c
index 39fd362415cf..0f2698f9fd6d 100644
--- a/tools/testing/selftests/powerpc/alignment/alignment_handler.c
+++ b/tools/testing/selftests/powerpc/alignment/alignment_handler.c
@@ -57,7 +57,7 @@ volatile int gotsig;
 
 void sighandler(int sig, siginfo_t *info, void *ctx)
 {
-        struct ucontext *ucp = ctx;
+        ucontext_t *ucp = ctx;
 
         if (!testing) {
                 signal(sig, SIG_DFL);
diff --git a/tools/testing/selftests/powerpc/mm/subpage_prot.c b/tools/testing/selftests/powerpc/mm/subpage_prot.c
index 35ade7406dcd..3ae77ba93208 100644
--- a/tools/testing/selftests/powerpc/mm/subpage_prot.c
+++ b/tools/testing/selftests/powerpc/mm/subpage_prot.c
@@ -135,6 +135,16 @@ static int run_test(void *addr, unsigned long size)
         return 0;
 }
 
+static int syscall_available(void)
+{
+        int rc;
+
+        errno = 0;
+        rc = syscall(__NR_subpage_prot, 0, 0, 0);
+
+        return rc == 0 || (errno != ENOENT && errno != ENOSYS);
+}
+
 int test_anon(void)
 {
         unsigned long align;
@@ -145,6 +155,8 @@ int test_anon(void)
         void *mallocblock;
         unsigned long mallocsize;
 
+        SKIP_IF(!syscall_available());
+
         if (getpagesize() != 0x10000) {
                 fprintf(stderr, "Kernel page size must be 64K!\n");
                 return 1;
@@ -180,6 +192,8 @@ int test_file(void)
         off_t filesize;
         int fd;
 
+        SKIP_IF(!syscall_available());
+
         fd = open(file_name, O_RDWR);
         if (fd == -1) {
                 perror("failed to open file");
diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
index a23453943ad2..5c72ff978f27 100644
--- a/tools/testing/selftests/powerpc/tm/Makefile
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -16,7 +16,7 @@ $(OUTPUT)/tm-syscall: tm-syscall-asm.S
 $(OUTPUT)/tm-syscall: CFLAGS += -I../../../../../usr/include
 $(OUTPUT)/tm-tmspr: CFLAGS += -pthread
 $(OUTPUT)/tm-vmx-unavail: CFLAGS += -pthread -m64
-$(OUTPUT)/tm-resched-dscr: ../pmu/lib.o
+$(OUTPUT)/tm-resched-dscr: ../pmu/lib.c
 $(OUTPUT)/tm-unavailable: CFLAGS += -O0 -pthread -m64 -Wno-error=uninitialized -mvsx
 $(OUTPUT)/tm-trap: CFLAGS += -O0 -pthread -m64
 
diff --git a/tools/testing/selftests/powerpc/tm/tm-trap.c b/tools/testing/selftests/powerpc/tm/tm-trap.c
index 5d92c23ee6cb..179d592f0073 100644
--- a/tools/testing/selftests/powerpc/tm/tm-trap.c
+++ b/tools/testing/selftests/powerpc/tm/tm-trap.c
@@ -255,6 +255,8 @@ int tm_trap_test(void)
 
         struct sigaction trap_sa;
 
+        SKIP_IF(!have_htm());
+
         trap_sa.sa_flags = SA_SIGINFO;
         trap_sa.sa_sigaction = trap_signal_handler;
         sigaction(SIGTRAP, &trap_sa, NULL);
diff --git a/tools/testing/selftests/pstore/config b/tools/testing/selftests/pstore/config
index 6a8e5a9bfc10..d148f9f89fb6 100644
--- a/tools/testing/selftests/pstore/config
+++ b/tools/testing/selftests/pstore/config
@@ -2,3 +2,4 @@ CONFIG_MISC_FILESYSTEMS=y
 CONFIG_PSTORE=y
 CONFIG_PSTORE_PMSG=y
 CONFIG_PSTORE_CONSOLE=y
+CONFIG_PSTORE_RAM=m
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index 0b457e8e0f0c..5df609950a66 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -141,6 +141,15 @@ struct seccomp_data {
 #define SECCOMP_FILTER_FLAG_LOG 2
 #endif
 
+#ifndef PTRACE_SECCOMP_GET_METADATA
+#define PTRACE_SECCOMP_GET_METADATA     0x420d
+
+struct seccomp_metadata {
+        __u64 filter_off;       /* Input: which filter */
+        __u64 flags;             /* Output: filter's flags */
+};
+#endif
+
 #ifndef seccomp
 int seccomp(unsigned int op, unsigned int flags, void *args)
 {
@@ -2845,6 +2854,58 @@ TEST(get_action_avail)
         EXPECT_EQ(errno, EOPNOTSUPP);
 }
 
+TEST(get_metadata)
+{
+        pid_t pid;
+        int pipefd[2];
+        char buf;
+        struct seccomp_metadata md;
+
+        ASSERT_EQ(0, pipe(pipefd));
+
+        pid = fork();
+        ASSERT_GE(pid, 0);
+        if (pid == 0) {
+                struct sock_filter filter[] = {
+                        BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+                };
+                struct sock_fprog prog = {
+                        .len = (unsigned short)ARRAY_SIZE(filter),
+                        .filter = filter,
+                };
+
+                /* one with log, one without */
+                ASSERT_EQ(0, seccomp(SECCOMP_SET_MODE_FILTER,
+                                     SECCOMP_FILTER_FLAG_LOG, &prog));
+                ASSERT_EQ(0, seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog));
+
+                ASSERT_EQ(0, close(pipefd[0]));
+                ASSERT_EQ(1, write(pipefd[1], "1", 1));
+                ASSERT_EQ(0, close(pipefd[1]));
+
+                while (1)
+                        sleep(100);
+        }
+
+        ASSERT_EQ(0, close(pipefd[1]));
+        ASSERT_EQ(1, read(pipefd[0], &buf, 1));
+
+        ASSERT_EQ(0, ptrace(PTRACE_ATTACH, pid));
+        ASSERT_EQ(pid, waitpid(pid, NULL, 0));
+
+        md.filter_off = 0;
+        ASSERT_EQ(sizeof(md), ptrace(PTRACE_SECCOMP_GET_METADATA, pid, sizeof(md), &md));
+        EXPECT_EQ(md.flags, SECCOMP_FILTER_FLAG_LOG);
+        EXPECT_EQ(md.filter_off, 0);
+
+        md.filter_off = 1;
+        ASSERT_EQ(sizeof(md), ptrace(PTRACE_SECCOMP_GET_METADATA, pid, sizeof(md), &md));
+        EXPECT_EQ(md.flags, 0);
+        EXPECT_EQ(md.filter_off, 1);
+
+        ASSERT_EQ(0, kill(pid, SIGKILL));
+}
+
 /*
  * TODO:
  * - add microbenchmarks
diff --git a/tools/testing/selftests/sync/Makefile b/tools/testing/selftests/sync/Makefile
index b3c8ba3cb668..d0121a8a3523 100644
--- a/tools/testing/selftests/sync/Makefile
+++ b/tools/testing/selftests/sync/Makefile
@@ -30,7 +30,7 @@ $(TEST_CUSTOM_PROGS): $(TESTS) $(OBJS)
         $(CC) -o $(TEST_CUSTOM_PROGS) $(OBJS) $(TESTS) $(CFLAGS) $(LDFLAGS)
 
 $(OBJS): $(OUTPUT)/%.o: %.c
-        $(CC) -c $^ -o $@
+        $(CC) -c $^ -o $@ $(CFLAGS)
 
 $(TESTS): $(OUTPUT)/%.o: %.c
         $(CC) -c $^ -o $@
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json b/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json
index e34075059c26..90bba48c3f07 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json
@@ -315,7 +315,7 @@
         "cmdUnderTest": "$TC actions ls action skbmod",
         "expExitCode": "0",
         "verifyCmd": "$TC actions get action skbmod index 4",
-        "matchPattern": "action order [0-9]*: skbmod pipe set etype 0x0031",
+        "matchPattern": "action order [0-9]*: skbmod pipe set etype 0x31",
         "matchCount": "1",
         "teardown": [
             "$TC actions flush action skbmod"
diff --git a/tools/testing/selftests/vDSO/Makefile b/tools/testing/selftests/vDSO/Makefile
index 3d5a62ff7d31..f5d7a7851e21 100644
--- a/tools/testing/selftests/vDSO/Makefile
+++ b/tools/testing/selftests/vDSO/Makefile
@@ -1,4 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
+include ../lib.mk
+
 ifndef CROSS_COMPILE
 CFLAGS := -std=gnu99
 CFLAGS_vdso_standalone_test_x86 := -nostdlib -fno-asynchronous-unwind-tables -fno-stack-protector
@@ -6,16 +8,14 @@ ifeq ($(CONFIG_X86_32),y)
 LDLIBS += -lgcc_s
 endif
 
-TEST_PROGS := vdso_test vdso_standalone_test_x86
+TEST_PROGS := $(OUTPUT)/vdso_test $(OUTPUT)/vdso_standalone_test_x86
 
 all: $(TEST_PROGS)
-vdso_test: parse_vdso.c vdso_test.c
-vdso_standalone_test_x86: vdso_standalone_test_x86.c parse_vdso.c
+$(OUTPUT)/vdso_test: parse_vdso.c vdso_test.c
+$(OUTPUT)/vdso_standalone_test_x86: vdso_standalone_test_x86.c parse_vdso.c
         $(CC) $(CFLAGS) $(CFLAGS_vdso_standalone_test_x86) \
                 vdso_standalone_test_x86.c parse_vdso.c \
-                -o vdso_standalone_test_x86
+                -o $@
 
-include ../lib.mk
-clean:
-        rm -fr $(TEST_PROGS)
+EXTRA_CLEAN := $(TEST_PROGS)
 endif
diff --git a/tools/testing/selftests/vm/.gitignore b/tools/testing/selftests/vm/.gitignore
index 63c94d776e89..342c7bc9dc8c 100644
--- a/tools/testing/selftests/vm/.gitignore
+++ b/tools/testing/selftests/vm/.gitignore
@@ -11,3 +11,4 @@ mlock-intersect-test
 mlock-random-test
 virtual_address_range
 gup_benchmark
+va_128TBswitch
diff --git a/tools/testing/selftests/vm/run_vmtests b/tools/testing/selftests/vm/run_vmtests
index d2561895a021..22d564673830 100755
--- a/tools/testing/selftests/vm/run_vmtests
+++ b/tools/testing/selftests/vm/run_vmtests
@@ -2,25 +2,33 @@
 # SPDX-License-Identifier: GPL-2.0
 #please run as root
 
-#we need 256M, below is the size in kB
-needmem=262144
 mnt=./huge
 exitcode=0
 
-#get pagesize and freepages from /proc/meminfo
+#get huge pagesize and freepages from /proc/meminfo
 while read name size unit; do
         if [ "$name" = "HugePages_Free:" ]; then
                 freepgs=$size
         fi
         if [ "$name" = "Hugepagesize:" ]; then
-                pgsize=$size
+                hpgsize_KB=$size
         fi
 done < /proc/meminfo
 
+# Simple hugetlbfs tests have a hardcoded minimum requirement of
+# huge pages totaling 256MB (262144KB) in size.  The userfaultfd
+# hugetlb test requires a minimum of 2 * nr_cpus huge pages.  Take
+# both of these requirements into account and attempt to increase
+# number of huge pages available.
+nr_cpus=$(nproc)
+hpgsize_MB=$((hpgsize_KB / 1024))
+half_ufd_size_MB=$((((nr_cpus * hpgsize_MB + 127) / 128) * 128))
+needmem_KB=$((half_ufd_size_MB * 2 * 1024))
+
 #set proper nr_hugepages
-if [ -n "$freepgs" ] && [ -n "$pgsize" ]; then
+if [ -n "$freepgs" ] && [ -n "$hpgsize_KB" ]; then
         nr_hugepgs=`cat /proc/sys/vm/nr_hugepages`
-        needpgs=`expr $needmem / $pgsize`
+        needpgs=$((needmem_KB / hpgsize_KB))
         tries=2
         while [ $tries -gt 0 ] && [ $freepgs -lt $needpgs ]; do
                 lackpgs=$(( $needpgs - $freepgs ))
@@ -107,8 +115,9 @@ fi
 echo "---------------------------"
 echo "running userfaultfd_hugetlb"
 echo "---------------------------"
-# 256MB total huge pages == 128MB src and 128MB dst
-./userfaultfd hugetlb 128 32 $mnt/ufd_test_file
+# Test requires source and destination huge pages.  Size of source
+# (half_ufd_size_MB) is passed as argument to test.
+./userfaultfd hugetlb $half_ufd_size_MB 32 $mnt/ufd_test_file
 if [ $? -ne 0 ]; then
         echo "[FAIL]"
         exitcode=1
diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
index 10ca46df1449..d744991c0f4f 100644
--- a/tools/testing/selftests/x86/Makefile
+++ b/tools/testing/selftests/x86/Makefile
@@ -5,16 +5,26 @@ include ../lib.mk
 
 .PHONY: all all_32 all_64 warn_32bit_failure clean
 
-TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt ptrace_syscall test_mremap_vdso \
-                        check_initial_reg_state sigreturn ldt_gdt iopl mpx-mini-test ioperm \
+UNAME_M := $(shell uname -m)
+CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32)
+CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c)
+
+TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt test_mremap_vdso \
+                        check_initial_reg_state sigreturn iopl mpx-mini-test ioperm \
                         protection_keys test_vdso test_vsyscall
 TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault test_syscall_vdso unwind_vdso \
                         test_FCMOV test_FCOMI test_FISTTP \
                         vdso_restorer
-TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip 5lvl
+TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip
+# Some selftests require 32bit support enabled also on 64bit systems
+TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall
 
-TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY)
+TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY) $(TARGETS_C_32BIT_NEEDED)
 TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY)
+ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),11)
+TARGETS_C_64BIT_ALL += $(TARGETS_C_32BIT_NEEDED)
+endif
+
 BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
 BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
 
@@ -23,10 +33,6 @@ BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
 
 CFLAGS := -O2 -g -std=gnu99 -pthread -Wall -no-pie
 
-UNAME_M := $(shell uname -m)
-CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32)
-CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c)
-
 define gen-target-rule-32
 $(1) $(1)_32: $(OUTPUT)/$(1)_32
 .PHONY: $(1) $(1)_32
@@ -40,12 +46,14 @@ endef
 ifeq ($(CAN_BUILD_I386),1)
 all: all_32
 TEST_PROGS += $(BINARIES_32)
+EXTRA_CFLAGS += -DCAN_BUILD_32
 $(foreach t,$(TARGETS_C_32BIT_ALL),$(eval $(call gen-target-rule-32,$(t))))
 endif
 
 ifeq ($(CAN_BUILD_X86_64),1)
 all: all_64
 TEST_PROGS += $(BINARIES_64)
+EXTRA_CFLAGS += -DCAN_BUILD_64
 $(foreach t,$(TARGETS_C_64BIT_ALL),$(eval $(call gen-target-rule-64,$(t))))
 endif
 
diff --git a/tools/testing/selftests/x86/entry_from_vm86.c b/tools/testing/selftests/x86/entry_from_vm86.c
index 361466a2eaef..ade443a88421 100644
--- a/tools/testing/selftests/x86/entry_from_vm86.c
+++ b/tools/testing/selftests/x86/entry_from_vm86.c
@@ -95,6 +95,10 @@ asm (
         "int3\n\t"
         "vmcode_int80:\n\t"
         "int $0x80\n\t"
+        "vmcode_popf_hlt:\n\t"
+        "push %ax\n\t"
+        "popf\n\t"
+        "hlt\n\t"
         "vmcode_umip:\n\t"
         /* addressing via displacements */
         "smsw (2052)\n\t"
@@ -124,8 +128,8 @@ asm (
 
 extern unsigned char vmcode[], end_vmcode[];
 extern unsigned char vmcode_bound[], vmcode_sysenter[], vmcode_syscall[],
-        vmcode_sti[], vmcode_int3[], vmcode_int80[], vmcode_umip[],
-        vmcode_umip_str[], vmcode_umip_sldt[];
+        vmcode_sti[], vmcode_int3[], vmcode_int80[], vmcode_popf_hlt[],
+        vmcode_umip[], vmcode_umip_str[], vmcode_umip_sldt[];
 
 /* Returns false if the test was skipped. */
 static bool do_test(struct vm86plus_struct *v86, unsigned long eip,
@@ -175,7 +179,7 @@ static bool do_test(struct vm86plus_struct *v86, unsigned long eip,
             (VM86_TYPE(ret) == rettype && VM86_ARG(ret) == retarg)) {
                 printf("[OK]\tReturned correctly\n");
         } else {
-                printf("[FAIL]\tIncorrect return reason\n");
+                printf("[FAIL]\tIncorrect return reason (started at eip = 0x%lx, ended at eip = 0x%lx)\n", eip, v86->regs.eip);
                 nerrs++;
         }
 
@@ -264,6 +268,9 @@ int main(void)
         v86.regs.ds = load_addr / 16;
         v86.regs.es = load_addr / 16;
 
+        /* Use the end of the page as our stack. */
+        v86.regs.esp = 4096;
+
         assert((v86.regs.cs & 3) == 0); /* Looks like RPL = 0 */
 
         /* #BR -- should deliver SIG??? */
@@ -295,6 +302,23 @@ int main(void)
         v86.regs.eflags &= ~X86_EFLAGS_IF;
         do_test(&v86, vmcode_sti - vmcode, VM86_STI, 0, "STI with VIP set");
 
+        /* POPF with VIP set but IF clear: should not trap */
+        v86.regs.eflags = X86_EFLAGS_VIP;
+        v86.regs.eax = 0;
+        do_test(&v86, vmcode_popf_hlt - vmcode, VM86_UNKNOWN, 0, "POPF with VIP set and IF clear");
+
+        /* POPF with VIP set and IF set: should trap */
+        v86.regs.eflags = X86_EFLAGS_VIP;
+        v86.regs.eax = X86_EFLAGS_IF;
+        do_test(&v86, vmcode_popf_hlt - vmcode, VM86_STI, 0, "POPF with VIP and IF set");
+
+        /* POPF with VIP clear and IF set: should not trap */
+        v86.regs.eflags = 0;
+        v86.regs.eax = X86_EFLAGS_IF;
+        do_test(&v86, vmcode_popf_hlt - vmcode, VM86_UNKNOWN, 0, "POPF with VIP clear and IF set");
+
+        v86.regs.eflags = 0;
+
         /* INT3 -- should cause #BP */
         do_test(&v86, vmcode_int3 - vmcode, VM86_TRAP, 3, "INT3");
 
@@ -318,7 +342,7 @@ int main(void)
         clearhandler(SIGSEGV);
 
         /* Make sure nothing explodes if we fork. */
-        if (fork() > 0)
+        if (fork() == 0)
                 return 0;
 
         return (nerrs == 0 ? 0 : 1);
diff --git a/tools/testing/selftests/x86/mpx-mini-test.c b/tools/testing/selftests/x86/mpx-mini-test.c
index ec0f6b45ce8b..9c0325e1ea68 100644
--- a/tools/testing/selftests/x86/mpx-mini-test.c
+++ b/tools/testing/selftests/x86/mpx-mini-test.c
@@ -315,11 +315,39 @@ static inline void *__si_bounds_upper(siginfo_t *si)
         return si->si_upper;
 }
 #else
+
+/*
+ * This deals with old version of _sigfault in some distros:
+ *
+
+old _sigfault:
+        struct {
+            void *si_addr;
+        } _sigfault;
+
+new _sigfault:
+        struct {
+                void __user *_addr;
+                int _trapno;
+                short _addr_lsb;
+                union {
+                        struct {
+                                void __user *_lower;
+                                void __user *_upper;
+                        } _addr_bnd;
+                        __u32 _pkey;
+                };
+        } _sigfault;
+ *
+ */
+
 static inline void **__si_bounds_hack(siginfo_t *si)
 {
         void *sigfault = &si->_sifields._sigfault;
         void *end_sigfault = sigfault + sizeof(si->_sifields._sigfault);
-        void **__si_lower = end_sigfault;
+        int *trapno = (int*)end_sigfault;
+        /* skip _trapno and _addr_lsb */
+        void **__si_lower = (void**)(trapno + 2);
 
         return __si_lower;
 }
@@ -331,7 +359,7 @@ static inline void *__si_bounds_lower(siginfo_t *si)
 
 static inline void *__si_bounds_upper(siginfo_t *si)
 {
-        return (*__si_bounds_hack(si)) + sizeof(void *);
+        return *(__si_bounds_hack(si) + 1);
 }
 #endif
 
diff --git a/tools/testing/selftests/x86/protection_keys.c b/tools/testing/selftests/x86/protection_keys.c
index bc1b0735bb50..f15aa5a76fe3 100644
--- a/tools/testing/selftests/x86/protection_keys.c
+++ b/tools/testing/selftests/x86/protection_keys.c
@@ -393,34 +393,6 @@ pid_t fork_lazy_child(void)
         return forkret;
 }
 
-void davecmp(void *_a, void *_b, int len)
-{
-        int i;
-        unsigned long *a = _a;
-        unsigned long *b = _b;
-
-        for (i = 0; i < len / sizeof(*a); i++) {
-                if (a[i] == b[i])
-                        continue;
-
-                dprintf3("[%3d]: a: %016lx b: %016lx\n", i, a[i], b[i]);
-        }
-}
-
-void dumpit(char *f)
-{
-        int fd = open(f, O_RDONLY);
-        char buf[100];
-        int nr_read;
-
-        dprintf2("maps fd: %d\n", fd);
-        do {
-                nr_read = read(fd, &buf[0], sizeof(buf));
-                write(1, buf, nr_read);
-        } while (nr_read > 0);
-        close(fd);
-}
-
 #define PKEY_DISABLE_ACCESS    0x1
 #define PKEY_DISABLE_WRITE     0x2
 
diff --git a/tools/testing/selftests/x86/ptrace_syscall.c b/tools/testing/selftests/x86/ptrace_syscall.c
index 1ae1c5a7392e..6f22238f3217 100644
--- a/tools/testing/selftests/x86/ptrace_syscall.c
+++ b/tools/testing/selftests/x86/ptrace_syscall.c
@@ -183,8 +183,10 @@ static void test_ptrace_syscall_restart(void)
                 if (ptrace(PTRACE_TRACEME, 0, 0, 0) != 0)
                         err(1, "PTRACE_TRACEME");
 
+                pid_t pid = getpid(), tid = syscall(SYS_gettid);
+
                 printf("\tChild will make one syscall\n");
-                raise(SIGSTOP);
+                syscall(SYS_tgkill, pid, tid, SIGSTOP);
 
                 syscall(SYS_gettid, 10, 11, 12, 13, 14, 15);
                 _exit(0);
@@ -301,9 +303,11 @@ static void test_restart_under_ptrace(void)
                 if (ptrace(PTRACE_TRACEME, 0, 0, 0) != 0)
                         err(1, "PTRACE_TRACEME");
 
+                pid_t pid = getpid(), tid = syscall(SYS_gettid);
+
                 printf("\tChild will take a nap until signaled\n");
                 setsigign(SIGUSR1, SA_RESTART);
-                raise(SIGSTOP);
+                syscall(SYS_tgkill, pid, tid, SIGSTOP);
 
                 syscall(SYS_pause, 0, 0, 0, 0, 0, 0);
                 _exit(0);
diff --git a/tools/testing/selftests/x86/single_step_syscall.c b/tools/testing/selftests/x86/single_step_syscall.c
index a48da95c18fd..ddfdd635de16 100644
--- a/tools/testing/selftests/x86/single_step_syscall.c
+++ b/tools/testing/selftests/x86/single_step_syscall.c
@@ -119,7 +119,9 @@ static void check_result(void)
 
 int main()
 {
+#ifdef CAN_BUILD_32
         int tmp;
+#endif
 
         sethandler(SIGTRAP, sigtrap, 0);
 
@@ -139,12 +141,13 @@ int main()
                       : : "c" (post_nop) : "r11");
         check_result();
 #endif
-
+#ifdef CAN_BUILD_32
         printf("[RUN]\tSet TF and check int80\n");
         set_eflags(get_eflags() | X86_EFLAGS_TF);
         asm volatile ("int $0x80" : "=a" (tmp) : "a" (SYS_getpid)
                         : INT80_CLOBBERS);
         check_result();
+#endif
 
         /*
          * This test is particularly interesting if fast syscalls use
diff --git a/tools/testing/selftests/x86/test_mremap_vdso.c b/tools/testing/selftests/x86/test_mremap_vdso.c
index bf0d687c7db7..64f11c8d9b76 100644
--- a/tools/testing/selftests/x86/test_mremap_vdso.c
+++ b/tools/testing/selftests/x86/test_mremap_vdso.c
@@ -90,8 +90,12 @@ int main(int argc, char **argv, char **envp)
                         vdso_size += PAGE_SIZE;
                 }
 
+#ifdef __i386__
                 /* Glibc is likely to explode now - exit with raw syscall */
                 asm volatile ("int $0x80" : : "a" (__NR_exit), "b" (!!ret));
+#else /* __x86_64__ */
+                syscall(SYS_exit, ret);
+#endif
         } else {
                 int status;
 
diff --git a/tools/testing/selftests/x86/test_vdso.c b/tools/testing/selftests/x86/test_vdso.c
index 29973cde06d3..235259011704 100644
--- a/tools/testing/selftests/x86/test_vdso.c
+++ b/tools/testing/selftests/x86/test_vdso.c
@@ -26,20 +26,59 @@
 # endif
 #endif
 
+/* max length of lines in /proc/self/maps - anything longer is skipped here */
+#define MAPS_LINE_LEN 128
+
 int nerrs = 0;
 
+typedef long (*getcpu_t)(unsigned *, unsigned *, void *);
+
+getcpu_t vgetcpu;
+getcpu_t vdso_getcpu;
+
+static void *vsyscall_getcpu(void)
+{
 #ifdef __x86_64__
-# define VSYS(x) (x)
+        FILE *maps;
+        char line[MAPS_LINE_LEN];
+        bool found = false;
+
+        maps = fopen("/proc/self/maps", "r");
+        if (!maps) /* might still be present, but ignore it here, as we test vDSO not vsyscall */
+                return NULL;
+
+        while (fgets(line, MAPS_LINE_LEN, maps)) {
+                char r, x;
+                void *start, *end;
+                char name[MAPS_LINE_LEN];
+
+                /* sscanf() is safe here as strlen(name) >= strlen(line) */
+                if (sscanf(line, "%p-%p %c-%cp %*x %*x:%*x %*u %s",
+                           &start, &end, &r, &x, name) != 5)
+                        continue;
+
+                if (strcmp(name, "[vsyscall]"))
+                        continue;
+
+                /* assume entries are OK, as we test vDSO here not vsyscall */
+                found = true;
+                break;
+        }
+
+        fclose(maps);
+
+        if (!found) {
+                printf("Warning: failed to find vsyscall getcpu\n");
+                return NULL;
+        }
+        return (void *) (0xffffffffff600800);
 #else
-# define VSYS(x) 0
+        return NULL;
 #endif
+}
 
-typedef long (*getcpu_t)(unsigned *, unsigned *, void *);
-
-const getcpu_t vgetcpu = (getcpu_t)VSYS(0xffffffffff600800);
-getcpu_t vdso_getcpu;
 
-void fill_function_pointers()
+static void fill_function_pointers()
 {
         void *vdso = dlopen("linux-vdso.so.1",
                             RTLD_LAZY | RTLD_LOCAL | RTLD_NOLOAD);
@@ -54,6 +93,8 @@ void fill_function_pointers()
         vdso_getcpu = (getcpu_t)dlsym(vdso, "__vdso_getcpu");
         if (!vdso_getcpu)
                 printf("Warning: failed to find getcpu in vDSO\n");
+
+        vgetcpu = (getcpu_t) vsyscall_getcpu();
 }
 
 static long sys_getcpu(unsigned * cpu, unsigned * node,
diff --git a/tools/testing/selftests/x86/test_vsyscall.c b/tools/testing/selftests/x86/test_vsyscall.c
index 7a744fa7b786..0b4f1cc2291c 100644
--- a/tools/testing/selftests/x86/test_vsyscall.c
+++ b/tools/testing/selftests/x86/test_vsyscall.c
@@ -33,6 +33,9 @@
 # endif
 #endif
 
+/* max length of lines in /proc/self/maps - anything longer is skipped here */
+#define MAPS_LINE_LEN 128
+
 static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *),
                        int flags)
 {
@@ -98,7 +101,7 @@ static int init_vsys(void)
 #ifdef __x86_64__
         int nerrs = 0;
         FILE *maps;
-        char line[128];
+        char line[MAPS_LINE_LEN];
         bool found = false;
 
         maps = fopen("/proc/self/maps", "r");
@@ -108,10 +111,12 @@ static int init_vsys(void)
                 return 0;
         }
 
-        while (fgets(line, sizeof(line), maps)) {
+        while (fgets(line, MAPS_LINE_LEN, maps)) {
                 char r, x;
                 void *start, *end;
-                char name[128];
+                char name[MAPS_LINE_LEN];
+
+                /* sscanf() is safe here as strlen(name) >= strlen(line) */
                 if (sscanf(line, "%p-%p %c-%cp %*x %*x:%*x %*u %s",
                            &start, &end, &r, &x, name) != 5)
                         continue;
@@ -445,7 +450,7 @@ static void sigtrap(int sig, siginfo_t *info, void *ctx_void)
                 num_vsyscall_traps++;
 }
 
-static int test_native_vsyscall(void)
+static int test_emulation(void)
 {
         time_t tmp;
         bool is_native;
@@ -453,7 +458,7 @@ static int test_native_vsyscall(void)
         if (!vtime)
                 return 0;
 
-        printf("[RUN]\tchecking for native vsyscall\n");
+        printf("[RUN]\tchecking that vsyscalls are emulated\n");
         sethandler(SIGTRAP, sigtrap, 0);
         set_eflags(get_eflags() | X86_EFLAGS_TF);
         vtime(&tmp);
@@ -469,11 +474,12 @@ static int test_native_vsyscall(void)
          */
         is_native = (num_vsyscall_traps > 1);
 
-        printf("\tvsyscalls are %s (%d instructions in vsyscall page)\n",
+        printf("[%s]\tvsyscalls are %s (%d instructions in vsyscall page)\n",
+               (is_native ? "FAIL" : "OK"),
                (is_native ? "native" : "emulated"),
                (int)num_vsyscall_traps);
 
-        return 0;
+        return is_native;
 }
 #endif
 
@@ -493,7 +499,7 @@ int main(int argc, char **argv)
         nerrs += test_vsys_r();
 
 #ifdef __x86_64__
-        nerrs += test_native_vsyscall();
+        nerrs += test_emulation();
 #endif
 
         return nerrs ? 1 : 0;
diff --git a/tools/usb/Makefile b/tools/usb/Makefile
index 4e6506078494..01d758d73b6d 100644
--- a/tools/usb/Makefile
+++ b/tools/usb/Makefile
@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 # Makefile for USB tools
 
-CC = $(CROSS_COMPILE)gcc
 PTHREAD_LIBS = -lpthread
 WARNINGS = -Wall -Wextra
 CFLAGS = $(WARNINGS) -g -I../include
diff --git a/tools/vm/Makefile b/tools/vm/Makefile
index be320b905ea7..20f6cf04377f 100644
--- a/tools/vm/Makefile
+++ b/tools/vm/Makefile
@@ -6,7 +6,6 @@ TARGETS=page-types slabinfo page_owner_sort
 LIB_DIR = ../lib/api
 LIBS = $(LIB_DIR)/libapi.a
 
-CC = $(CROSS_COMPILE)gcc
 CFLAGS = -Wall -Wextra -I../lib/
 LDFLAGS = $(LIBS)
 
diff --git a/tools/wmi/Makefile b/tools/wmi/Makefile
index e664f1167388..e0e87239126b 100644
--- a/tools/wmi/Makefile
+++ b/tools/wmi/Makefile
@@ -2,7 +2,6 @@ PREFIX ?= /usr
 SBINDIR ?= sbin
 INSTALL ?= install
 CFLAGS += -D__EXPORTED_HEADERS__ -I../../include/uapi -I../../include
-CC = $(CROSS_COMPILE)gcc
 
 TARGET = dell-smbios-example
 
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 70268c0bec79..282389eb204f 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -36,6 +36,8 @@ static struct timecounter *timecounter;
 static unsigned int host_vtimer_irq;
 static u32 host_vtimer_irq_flags;
 
+static DEFINE_STATIC_KEY_FALSE(has_gic_active_state);
+
 static const struct kvm_irq_level default_ptimer_irq = {
         .irq    = 30,
         .level  = 1,
@@ -56,6 +58,12 @@ u64 kvm_phys_timer_read(void)
         return timecounter->cc->read(timecounter->cc);
 }
 
+static inline bool userspace_irqchip(struct kvm *kvm)
+{
+        return static_branch_unlikely(&userspace_irqchip_in_use) &&
+                unlikely(!irqchip_in_kernel(kvm));
+}
+
 static void soft_timer_start(struct hrtimer *hrt, u64 ns)
 {
         hrtimer_start(hrt, ktime_add_ns(ktime_get(), ns),
@@ -69,25 +77,6 @@ static void soft_timer_cancel(struct hrtimer *hrt, struct work_struct *work)
                 cancel_work_sync(work);
 }
 
-static void kvm_vtimer_update_mask_user(struct kvm_vcpu *vcpu)
-{
-        struct arch_timer_context *vtimer = vcpu_vtimer(vcpu);
-
-        /*
-         * When using a userspace irqchip with the architected timers, we must
-         * prevent continuously exiting from the guest, and therefore mask the
-         * physical interrupt by disabling it on the host interrupt controller
-         * when the virtual level is high, such that the guest can make
-         * forward progress.  Once we detect the output level being
-         * de-asserted, we unmask the interrupt again so that we exit from the
-         * guest when the timer fires.
-         */
-        if (vtimer->irq.level)
-                disable_percpu_irq(host_vtimer_irq);
-        else
-                enable_percpu_irq(host_vtimer_irq, 0);
-}
-
 static irqreturn_t kvm_arch_timer_handler(int irq, void *dev_id)
 {
         struct kvm_vcpu *vcpu = *(struct kvm_vcpu **)dev_id;
@@ -106,9 +95,9 @@ static irqreturn_t kvm_arch_timer_handler(int irq, void *dev_id)
         if (kvm_timer_should_fire(vtimer))
                 kvm_timer_update_irq(vcpu, true, vtimer);
 
-        if (static_branch_unlikely(&userspace_irqchip_in_use) &&
-            unlikely(!irqchip_in_kernel(vcpu->kvm)))
-                kvm_vtimer_update_mask_user(vcpu);
+        if (userspace_irqchip(vcpu->kvm) &&
+            !static_branch_unlikely(&has_gic_active_state))
+                disable_percpu_irq(host_vtimer_irq);
 
         return IRQ_HANDLED;
 }
@@ -290,8 +279,7 @@ static void kvm_timer_update_irq(struct kvm_vcpu *vcpu, bool new_level,
         trace_kvm_timer_update_irq(vcpu->vcpu_id, timer_ctx->irq.irq,
                                    timer_ctx->irq.level);
 
-        if (!static_branch_unlikely(&userspace_irqchip_in_use) ||
-            likely(irqchip_in_kernel(vcpu->kvm))) {
+        if (!userspace_irqchip(vcpu->kvm)) {
                 ret = kvm_vgic_inject_irq(vcpu->kvm, vcpu->vcpu_id,
                                           timer_ctx->irq.irq,
                                           timer_ctx->irq.level,
@@ -350,12 +338,6 @@ static void kvm_timer_update_state(struct kvm_vcpu *vcpu)
         phys_timer_emulate(vcpu);
 }
 
-static void __timer_snapshot_state(struct arch_timer_context *timer)
-{
-        timer->cnt_ctl = read_sysreg_el0(cntv_ctl);
-        timer->cnt_cval = read_sysreg_el0(cntv_cval);
-}
-
 static void vtimer_save_state(struct kvm_vcpu *vcpu)
 {
         struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
@@ -367,8 +349,10 @@ static void vtimer_save_state(struct kvm_vcpu *vcpu)
         if (!vtimer->loaded)
                 goto out;
 
-        if (timer->enabled)
-                __timer_snapshot_state(vtimer);
+        if (timer->enabled) {
+                vtimer->cnt_ctl = read_sysreg_el0(cntv_ctl);
+                vtimer->cnt_cval = read_sysreg_el0(cntv_cval);
+        }
 
         /* Disable the virtual timer */
         write_sysreg_el0(0, cntv_ctl);
@@ -460,23 +444,43 @@ static void set_cntvoff(u64 cntvoff)
         kvm_call_hyp(__kvm_timer_set_cntvoff, low, high);
 }
 
-static void kvm_timer_vcpu_load_vgic(struct kvm_vcpu *vcpu)
+static inline void set_vtimer_irq_phys_active(struct kvm_vcpu *vcpu, bool active)
+{
+        int r;
+        r = irq_set_irqchip_state(host_vtimer_irq, IRQCHIP_STATE_ACTIVE, active);
+        WARN_ON(r);
+}
+
+static void kvm_timer_vcpu_load_gic(struct kvm_vcpu *vcpu)
 {
         struct arch_timer_context *vtimer = vcpu_vtimer(vcpu);
         bool phys_active;
-        int ret;
-
-        phys_active = kvm_vgic_map_is_active(vcpu, vtimer->irq.irq);
 
-        ret = irq_set_irqchip_state(host_vtimer_irq,
-                                    IRQCHIP_STATE_ACTIVE,
-                                    phys_active);
-        WARN_ON(ret);
+        if (irqchip_in_kernel(vcpu->kvm))
+                phys_active = kvm_vgic_map_is_active(vcpu, vtimer->irq.irq);
+        else
+                phys_active = vtimer->irq.level;
+        set_vtimer_irq_phys_active(vcpu, phys_active);
 }
 
-static void kvm_timer_vcpu_load_user(struct kvm_vcpu *vcpu)
+static void kvm_timer_vcpu_load_nogic(struct kvm_vcpu *vcpu)
 {
-        kvm_vtimer_update_mask_user(vcpu);
+        struct arch_timer_context *vtimer = vcpu_vtimer(vcpu);
+
+        /*
+         * When using a userspace irqchip with the architected timers and a
+         * host interrupt controller that doesn't support an active state, we
+         * must still prevent continuously exiting from the guest, and
+         * therefore mask the physical interrupt by disabling it on the host
+         * interrupt controller when the virtual level is high, such that the
+         * guest can make forward progress.  Once we detect the output level
+         * being de-asserted, we unmask the interrupt again so that we exit
+         * from the guest when the timer fires.
+         */
+        if (vtimer->irq.level)
+                disable_percpu_irq(host_vtimer_irq);
+        else
+                enable_percpu_irq(host_vtimer_irq, host_vtimer_irq_flags);
 }
 
 void kvm_timer_vcpu_load(struct kvm_vcpu *vcpu)
@@ -487,10 +491,10 @@ void kvm_timer_vcpu_load(struct kvm_vcpu *vcpu)
         if (unlikely(!timer->enabled))
                 return;
 
-        if (unlikely(!irqchip_in_kernel(vcpu->kvm)))
-                kvm_timer_vcpu_load_user(vcpu);
+        if (static_branch_likely(&has_gic_active_state))
+                kvm_timer_vcpu_load_gic(vcpu);
         else
-                kvm_timer_vcpu_load_vgic(vcpu);
+                kvm_timer_vcpu_load_nogic(vcpu);
 
         set_cntvoff(vtimer->cntvoff);
 
@@ -555,22 +559,29 @@ static void unmask_vtimer_irq_user(struct kvm_vcpu *vcpu)
 {
         struct arch_timer_context *vtimer = vcpu_vtimer(vcpu);
 
-        if (unlikely(!irqchip_in_kernel(vcpu->kvm))) {
-                __timer_snapshot_state(vtimer);
-                if (!kvm_timer_should_fire(vtimer)) {
-                        kvm_timer_update_irq(vcpu, false, vtimer);
-                        kvm_vtimer_update_mask_user(vcpu);
-                }
+        if (!kvm_timer_should_fire(vtimer)) {
+                kvm_timer_update_irq(vcpu, false, vtimer);
+                if (static_branch_likely(&has_gic_active_state))
+                        set_vtimer_irq_phys_active(vcpu, false);
+                else
+                        enable_percpu_irq(host_vtimer_irq, host_vtimer_irq_flags);
         }
 }
 
 void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu)
 {
-        unmask_vtimer_irq_user(vcpu);
+        struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
+
+        if (unlikely(!timer->enabled))
+                return;
+
+        if (unlikely(!irqchip_in_kernel(vcpu->kvm)))
+                unmask_vtimer_irq_user(vcpu);
 }
 
 int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu)
 {
+        struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
         struct arch_timer_context *vtimer = vcpu_vtimer(vcpu);
         struct arch_timer_context *ptimer = vcpu_ptimer(vcpu);
 
@@ -584,6 +595,9 @@ int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu)
         ptimer->cnt_ctl = 0;
         kvm_timer_update_state(vcpu);
 
+        if (timer->enabled && irqchip_in_kernel(vcpu->kvm))
+                kvm_vgic_reset_mapped_irq(vcpu, vtimer->irq.irq);
+
         return 0;
 }
 
@@ -753,9 +767,11 @@ int kvm_timer_hyp_init(bool has_gic)
                         kvm_err("kvm_arch_timer: error setting vcpu affinity\n");
                         goto out_free_irq;
                 }
+
+                static_branch_enable(&has_gic_active_state);
         }
 
-        kvm_info("virtual timer IRQ%d\n", host_vtimer_irq);
+        kvm_debug("virtual timer IRQ%d\n", host_vtimer_irq);
 
         cpuhp_setup_state(CPUHP_AP_KVM_ARM_TIMER_STARTING,
                           "kvm/arm/timer:starting", kvm_timer_starting_cpu,
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 86941f6181bb..53572304843b 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -384,14 +384,11 @@ static void vcpu_power_off(struct kvm_vcpu *vcpu)
 int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
                                     struct kvm_mp_state *mp_state)
 {
-        vcpu_load(vcpu);
-
         if (vcpu->arch.power_off)
                 mp_state->mp_state = KVM_MP_STATE_STOPPED;
         else
                 mp_state->mp_state = KVM_MP_STATE_RUNNABLE;
 
-        vcpu_put(vcpu);
         return 0;
 }
 
@@ -400,8 +397,6 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
 {
         int ret = 0;
 
-        vcpu_load(vcpu);
-
         switch (mp_state->mp_state) {
         case KVM_MP_STATE_RUNNABLE:
                 vcpu->arch.power_off = false;
@@ -413,7 +408,6 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
                 ret = -EINVAL;
         }
 
-        vcpu_put(vcpu);
         return ret;
 }
 
@@ -1036,8 +1030,6 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
         struct kvm_device_attr attr;
         long r;
 
-        vcpu_load(vcpu);
-
         switch (ioctl) {
         case KVM_ARM_VCPU_INIT: {
                 struct kvm_vcpu_init init;
@@ -1114,7 +1106,6 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
                 r = -EINVAL;
         }
 
-        vcpu_put(vcpu);
         return r;
 }
 
diff --git a/virt/kvm/arm/hyp/vgic-v3-sr.c b/virt/kvm/arm/hyp/vgic-v3-sr.c
index f5c3d6d7019e..b89ce5432214 100644
--- a/virt/kvm/arm/hyp/vgic-v3-sr.c
+++ b/virt/kvm/arm/hyp/vgic-v3-sr.c
@@ -215,7 +215,8 @@ void __hyp_text __vgic_v3_save_state(struct kvm_vcpu *vcpu)
          * are now visible to the system register interface.
          */
         if (!cpu_if->vgic_sre) {
-                dsb(st);
+                dsb(sy);
+                isb();
                 cpu_if->vgic_vmcr = read_gicreg(ICH_VMCR_EL2);
         }
 
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index ec62d1cccab7..b960acdd0c05 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -1810,9 +1810,9 @@ int kvm_mmu_init(void)
          */
         BUG_ON((hyp_idmap_start ^ (hyp_idmap_end - 1)) & PAGE_MASK);
 
-        kvm_info("IDMAP page: %lx\n", hyp_idmap_start);
-        kvm_info("HYP VA range: %lx:%lx\n",
-                 kern_hyp_va(PAGE_OFFSET), kern_hyp_va(~0UL));
+        kvm_debug("IDMAP page: %lx\n", hyp_idmap_start);
+        kvm_debug("HYP VA range: %lx:%lx\n",
+                  kern_hyp_va(PAGE_OFFSET), kern_hyp_va(~0UL));
 
         if (hyp_idmap_start >= kern_hyp_va(PAGE_OFFSET) &&
             hyp_idmap_start <  kern_hyp_va(~0UL) &&
diff --git a/virt/kvm/arm/vgic/vgic-mmio.c b/virt/kvm/arm/vgic/vgic-mmio.c
index 83d82bd7dc4e..dbe99d635c80 100644
--- a/virt/kvm/arm/vgic/vgic-mmio.c
+++ b/virt/kvm/arm/vgic/vgic-mmio.c
@@ -113,9 +113,12 @@ unsigned long vgic_mmio_read_pending(struct kvm_vcpu *vcpu,
         /* Loop over all IRQs affected by this read */
         for (i = 0; i < len * 8; i++) {
                 struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, intid + i);
+                unsigned long flags;
 
+                spin_lock_irqsave(&irq->irq_lock, flags);
                 if (irq_is_pending(irq))
                         value |= (1U << i);
+                spin_unlock_irqrestore(&irq->irq_lock, flags);
 
                 vgic_put_irq(vcpu->kvm, irq);
         }
diff --git a/virt/kvm/arm/vgic/vgic-v2.c b/virt/kvm/arm/vgic/vgic-v2.c
index c32d7b93ffd1..29556f71b691 100644
--- a/virt/kvm/arm/vgic/vgic-v2.c
+++ b/virt/kvm/arm/vgic/vgic-v2.c
@@ -37,6 +37,13 @@ void vgic_v2_init_lrs(void)
                 vgic_v2_write_lr(i, 0);
 }
 
+void vgic_v2_set_npie(struct kvm_vcpu *vcpu)
+{
+        struct vgic_v2_cpu_if *cpuif = &vcpu->arch.vgic_cpu.vgic_v2;
+
+        cpuif->vgic_hcr |= GICH_HCR_NPIE;
+}
+
 void vgic_v2_set_underflow(struct kvm_vcpu *vcpu)
 {
         struct vgic_v2_cpu_if *cpuif = &vcpu->arch.vgic_cpu.vgic_v2;
@@ -64,7 +71,7 @@ void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu)
         int lr;
         unsigned long flags;
 
-        cpuif->vgic_hcr &= ~GICH_HCR_UIE;
+        cpuif->vgic_hcr &= ~(GICH_HCR_UIE | GICH_HCR_NPIE);
 
         for (lr = 0; lr < vgic_cpu->used_lrs; lr++) {
                 u32 val = cpuif->vgic_lr[lr];
@@ -410,7 +417,7 @@ int vgic_v2_probe(const struct gic_kvm_info *info)
         kvm_vgic_global_state.type = VGIC_V2;
         kvm_vgic_global_state.max_gic_vcpus = VGIC_V2_MAX_CPUS;
 
-        kvm_info("vgic-v2@%llx\n", info->vctrl.start);
+        kvm_debug("vgic-v2@%llx\n", info->vctrl.start);
 
         return 0;
 out:
diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c
index 6b329414e57a..0ff2006f3781 100644
--- a/virt/kvm/arm/vgic/vgic-v3.c
+++ b/virt/kvm/arm/vgic/vgic-v3.c
@@ -26,6 +26,13 @@ static bool group1_trap;
 static bool common_trap;
 static bool gicv4_enable;
 
+void vgic_v3_set_npie(struct kvm_vcpu *vcpu)
+{
+        struct vgic_v3_cpu_if *cpuif = &vcpu->arch.vgic_cpu.vgic_v3;
+
+        cpuif->vgic_hcr |= ICH_HCR_NPIE;
+}
+
 void vgic_v3_set_underflow(struct kvm_vcpu *vcpu)
 {
         struct vgic_v3_cpu_if *cpuif = &vcpu->arch.vgic_cpu.vgic_v3;
@@ -47,7 +54,7 @@ void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu)
         int lr;
         unsigned long flags;
 
-        cpuif->vgic_hcr &= ~ICH_HCR_UIE;
+        cpuif->vgic_hcr &= ~(ICH_HCR_UIE | ICH_HCR_NPIE);
 
         for (lr = 0; lr < vgic_cpu->used_lrs; lr++) {
                 u64 val = cpuif->vgic_lr[lr];
diff --git a/virt/kvm/arm/vgic/vgic.c b/virt/kvm/arm/vgic/vgic.c
index c7c5ef190afa..8201899126f6 100644
--- a/virt/kvm/arm/vgic/vgic.c
+++ b/virt/kvm/arm/vgic/vgic.c
@@ -495,6 +495,32 @@ int kvm_vgic_map_phys_irq(struct kvm_vcpu *vcpu, unsigned int host_irq,
         return ret;
 }
 
+/**
+ * kvm_vgic_reset_mapped_irq - Reset a mapped IRQ
+ * @vcpu: The VCPU pointer
+ * @vintid: The INTID of the interrupt
+ *
+ * Reset the active and pending states of a mapped interrupt.  Kernel
+ * subsystems injecting mapped interrupts should reset their interrupt lines
+ * when we are doing a reset of the VM.
+ */
+void kvm_vgic_reset_mapped_irq(struct kvm_vcpu *vcpu, u32 vintid)
+{
+        struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, vintid);
+        unsigned long flags;
+
+        if (!irq->hw)
+                goto out;
+
+        spin_lock_irqsave(&irq->irq_lock, flags);
+        irq->active = false;
+        irq->pending_latch = false;
+        irq->line_level = false;
+        spin_unlock_irqrestore(&irq->irq_lock, flags);
+out:
+        vgic_put_irq(vcpu->kvm, irq);
+}
+
 int kvm_vgic_unmap_phys_irq(struct kvm_vcpu *vcpu, unsigned int vintid)
 {
         struct vgic_irq *irq;
@@ -684,22 +710,37 @@ static inline void vgic_set_underflow(struct kvm_vcpu *vcpu)
                 vgic_v3_set_underflow(vcpu);
 }
 
+static inline void vgic_set_npie(struct kvm_vcpu *vcpu)
+{
+        if (kvm_vgic_global_state.type == VGIC_V2)
+                vgic_v2_set_npie(vcpu);
+        else
+                vgic_v3_set_npie(vcpu);
+}
+
 /* Requires the ap_list_lock to be held. */
-static int compute_ap_list_depth(struct kvm_vcpu *vcpu)
+static int compute_ap_list_depth(struct kvm_vcpu *vcpu,
+                                 bool *multi_sgi)
 {
         struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
         struct vgic_irq *irq;
         int count = 0;
 
+        *multi_sgi = false;
+
         DEBUG_SPINLOCK_BUG_ON(!spin_is_locked(&vgic_cpu->ap_list_lock));
 
         list_for_each_entry(irq, &vgic_cpu->ap_list_head, ap_list) {
                 spin_lock(&irq->irq_lock);
                 /* GICv2 SGIs can count for more than one... */
-                if (vgic_irq_is_sgi(irq->intid) && irq->source)
-                        count += hweight8(irq->source);
-                else
+                if (vgic_irq_is_sgi(irq->intid) && irq->source) {
+                        int w = hweight8(irq->source);
+
+                        count += w;
+                        *multi_sgi |= (w > 1);
+                } else {
                         count++;
+                }
                 spin_unlock(&irq->irq_lock);
         }
         return count;
@@ -710,28 +751,43 @@ static void vgic_flush_lr_state(struct kvm_vcpu *vcpu)
 {
         struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
         struct vgic_irq *irq;
-        int count = 0;
+        int count;
+        bool npie = false;
+        bool multi_sgi;
+        u8 prio = 0xff;
 
         DEBUG_SPINLOCK_BUG_ON(!spin_is_locked(&vgic_cpu->ap_list_lock));
 
-        if (compute_ap_list_depth(vcpu) > kvm_vgic_global_state.nr_lr)
+        count = compute_ap_list_depth(vcpu, &multi_sgi);
+        if (count > kvm_vgic_global_state.nr_lr || multi_sgi)
                 vgic_sort_ap_list(vcpu);
 
+        count = 0;
+
         list_for_each_entry(irq, &vgic_cpu->ap_list_head, ap_list) {
                 spin_lock(&irq->irq_lock);
 
-                if (unlikely(vgic_target_oracle(irq) != vcpu))
-                        goto next;
-
                 /*
-                 * If we get an SGI with multiple sources, try to get
-                 * them in all at once.
+                 * If we have multi-SGIs in the pipeline, we need to
+                 * guarantee that they are all seen before any IRQ of
+                 * lower priority. In that case, we need to filter out
+                 * these interrupts by exiting early. This is easy as
+                 * the AP list has been sorted already.
                  */
-                do {
+                if (multi_sgi && irq->priority > prio) {
+                        spin_unlock(&irq->irq_lock);
+                        break;
+                }
+
+                if (likely(vgic_target_oracle(irq) == vcpu)) {
                         vgic_populate_lr(vcpu, irq, count++);
-                } while (irq->source && count < kvm_vgic_global_state.nr_lr);
 
-next:
+                        if (irq->source) {
+                                npie = true;
+                                prio = irq->priority;
+                        }
+                }
+
                 spin_unlock(&irq->irq_lock);
 
                 if (count == kvm_vgic_global_state.nr_lr) {
@@ -742,6 +798,9 @@ next:
                 }
         }
 
+        if (npie)
+                vgic_set_npie(vcpu);
+
         vcpu->arch.vgic_cpu.used_lrs = count;
 
         /* Nuke remaining LRs */
diff --git a/virt/kvm/arm/vgic/vgic.h b/virt/kvm/arm/vgic/vgic.h
index 12c37b89f7a3..f5b8519e5546 100644
--- a/virt/kvm/arm/vgic/vgic.h
+++ b/virt/kvm/arm/vgic/vgic.h
@@ -96,6 +96,7 @@
 /* we only support 64 kB translation table page size */
 #define KVM_ITS_L1E_ADDR_MASK           GENMASK_ULL(51, 16)
 
+/* Requires the irq_lock to be held by the caller. */
 static inline bool irq_is_pending(struct vgic_irq *irq)
 {
         if (irq->config == VGIC_CONFIG_EDGE)
@@ -159,6 +160,7 @@ void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu);
 void vgic_v2_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr);
 void vgic_v2_clear_lr(struct kvm_vcpu *vcpu, int lr);
 void vgic_v2_set_underflow(struct kvm_vcpu *vcpu);
+void vgic_v2_set_npie(struct kvm_vcpu *vcpu);
 int vgic_v2_has_attr_regs(struct kvm_device *dev, struct kvm_device_attr *attr);
 int vgic_v2_dist_uaccess(struct kvm_vcpu *vcpu, bool is_write,
                          int offset, u32 *val);
@@ -188,6 +190,7 @@ void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu);
 void vgic_v3_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr);
 void vgic_v3_clear_lr(struct kvm_vcpu *vcpu, int lr);
 void vgic_v3_set_underflow(struct kvm_vcpu *vcpu);
+void vgic_v3_set_npie(struct kvm_vcpu *vcpu);
 void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
 void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
 void vgic_v3_enable(struct kvm_vcpu *vcpu);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 4501e658e8d6..65dea3ffef68 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -969,8 +969,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
                 /* Check for overlaps */
                 r = -EEXIST;
                 kvm_for_each_memslot(slot, __kvm_memslots(kvm, as_id)) {
-                        if ((slot->id >= KVM_USER_MEM_SLOTS) ||
-                            (slot->id == id))
+                        if (slot->id == id)
                                 continue;
                         if (!((base_gfn + npages <= slot->base_gfn) ||
                               (base_gfn >= slot->base_gfn + slot->npages)))