484 files changed, 5835 insertions, 5047 deletions

diff --git a/CREDITS b/CREDITS
index 40cc4bfb34db..ec7e6c7fdd1b 100644
--- a/CREDITS
+++ b/CREDITS
@@ -3709,6 +3709,13 @@ N: Dirk Verworner
 D: Co-author of German book ``Linux-Kernel-Programmierung''
 D: Co-founder of Berlin Linux User Group
 
+N: Andrew Victor
+E: linux@maxim.org.za
+W: http://maxim.org.za/at91_26.html
+D: First maintainer of Atmel ARM-based SoC, aka AT91
+D: Introduced support for at91rm9200, the first chip of AT91 family
+S: South Africa
+
 N: Riku Voipio
 E: riku.voipio@iki.fi
 D: Author of PCA9532 LED and Fintek f75375s hwmon driver
diff --git a/Documentation/IPMI.txt b/Documentation/IPMI.txt
index 653d5d739d7f..31d1d658827f 100644
--- a/Documentation/IPMI.txt
+++ b/Documentation/IPMI.txt
@@ -505,7 +505,10 @@ at module load time (for a module) with:
 
 The addresses are normal I2C addresses.  The adapter is the string
 name of the adapter, as shown in /sys/class/i2c-adapter/i2c-<n>/name.
-It is *NOT* i2c-<n> itself.
+It is *NOT* i2c-<n> itself.  Also, the comparison is done ignoring
+spaces, so if the name is "This is an I2C chip" you can say
+adapter_name=ThisisanI2cchip.  This is because it's hard to pass in
+spaces in kernel parameters.
 
 The debug flags are bit flags for each BMC found, they are:
 IPMI messages: 1, driver state: 2, timing: 4, I2C probe: 8
diff --git a/Documentation/acpi/enumeration.txt b/Documentation/acpi/enumeration.txt
index 750401f91341..15dfce708ebf 100644
--- a/Documentation/acpi/enumeration.txt
+++ b/Documentation/acpi/enumeration.txt
@@ -253,7 +253,7 @@ input driver:
 GPIO support
 ~~~~~~~~~~~~
 ACPI 5 introduced two new resources to describe GPIO connections: GpioIo
-and GpioInt. These resources are used be used to pass GPIO numbers used by
+and GpioInt. These resources can be used to pass GPIO numbers used by
 the device to the driver. ACPI 5.1 extended this with _DSD (Device
 Specific Data) which made it possible to name the GPIOs among other things.
 
diff --git a/Documentation/acpi/gpio-properties.txt b/Documentation/acpi/gpio-properties.txt
index ae36fcf86dc7..f35dad11f0de 100644
--- a/Documentation/acpi/gpio-properties.txt
+++ b/Documentation/acpi/gpio-properties.txt
@@ -1,9 +1,9 @@
 _DSD Device Properties Related to GPIO
 --------------------------------------
 
-With the release of ACPI 5.1 and the _DSD configuration objecte names
-can finally be given to GPIOs (and other things as well) returned by
-_CRS.  Previously, we were only able to use an integer index to find
+With the release of ACPI 5.1, the _DSD configuration object finally
+allows names to be given to GPIOs (and other things as well) returned
+by _CRS.  Previously, we were only able to use an integer index to find
 the corresponding GPIO, which is pretty error prone (it depends on
 the _CRS output ordering, for example).
 
diff --git a/Documentation/devicetree/bindings/arm/omap/l3-noc.txt b/Documentation/devicetree/bindings/arm/omap/l3-noc.txt
index 974624ea68f6..161448da959d 100644
--- a/Documentation/devicetree/bindings/arm/omap/l3-noc.txt
+++ b/Documentation/devicetree/bindings/arm/omap/l3-noc.txt
@@ -6,6 +6,7 @@ provided by Arteris.
 Required properties:
 - compatible : Should be "ti,omap3-l3-smx" for OMAP3 family
                Should be "ti,omap4-l3-noc" for OMAP4 family
+               Should be "ti,omap5-l3-noc" for OMAP5 family
                Should be "ti,dra7-l3-noc" for DRA7 family
                Should be "ti,am4372-l3-noc" for AM43 family
 - reg:  Contains L3 register address range for each noc domain.
diff --git a/Documentation/devicetree/bindings/dma/fsl-mxs-dma.txt b/Documentation/devicetree/bindings/dma/fsl-mxs-dma.txt
index a4873e5e3e36..e30e184f50c7 100644
--- a/Documentation/devicetree/bindings/dma/fsl-mxs-dma.txt
+++ b/Documentation/devicetree/bindings/dma/fsl-mxs-dma.txt
@@ -38,7 +38,7 @@ dma_apbx: dma-apbx@80024000 {
                       80 81 68 69
                       70 71 72 73
                       74 75 76 77>;
-        interrupt-names = "auart4-rx", "aurat4-tx", "spdif-tx", "empty",
+        interrupt-names = "auart4-rx", "auart4-tx", "spdif-tx", "empty",
                           "saif0", "saif1", "i2c0", "i2c1",
                           "auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx",
                           "auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx";
diff --git a/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt b/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt
new file mode 100644
index 000000000000..be789685a1c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt
@@ -0,0 +1,30 @@
+Abracon ABX80X I2C ultra low power RTC/Alarm chip
+
+The Abracon ABX80X family consist of the ab0801, ab0803, ab0804, ab0805, ab1801,
+ab1803, ab1804 and ab1805. The ab0805 is the superset of ab080x and the ab1805
+is the superset of ab180x.
+
+Required properties:
+
+ - "compatible": should one of:
+        "abracon,abx80x"
+        "abracon,ab0801"
+        "abracon,ab0803"
+        "abracon,ab0804"
+        "abracon,ab0805"
+        "abracon,ab1801"
+        "abracon,ab1803"
+        "abracon,ab1804"
+        "abracon,ab1805"
+        Using "abracon,abx80x" will enable chip autodetection.
+ - "reg": I2C bus address of the device
+
+Optional properties:
+
+The abx804 and abx805 have a trickle charger that is able to charge the
+connected battery or supercap. Both the following properties have to be defined
+and valid to enable charging:
+
+ - "abracon,tc-diode": should be "standard" (0.6V) or "schottky" (0.3V)
+ - "abracon,tc-resistor": should be <0>, <3>, <6> or <11>. 0 disables the output
+                          resistor, the other values are in ohm.
diff --git a/Documentation/kasan.txt b/Documentation/kasan.txt
index 092fc10961fe..4692241789b1 100644
--- a/Documentation/kasan.txt
+++ b/Documentation/kasan.txt
@@ -9,7 +9,9 @@ a fast and comprehensive solution for finding use-after-free and out-of-bounds
 bugs.
 
 KASan uses compile-time instrumentation for checking every memory access,
-therefore you will need a certain version of GCC > 4.9.2
+therefore you will need a gcc version of 4.9.2 or later. KASan could detect out
+of bounds accesses to stack or global variables, but only if gcc 5.0 or later was
+used to built the kernel.
 
 Currently KASan is supported only for x86_64 architecture and requires that the
 kernel be built with the SLUB allocator.
@@ -23,8 +25,8 @@ To enable KASAN configure kernel with:
 
 and choose between CONFIG_KASAN_OUTLINE and CONFIG_KASAN_INLINE. Outline/inline
 is compiler instrumentation types. The former produces smaller binary the
-latter is 1.1 - 2 times faster. Inline instrumentation requires GCC 5.0 or
-latter.
+latter is 1.1 - 2 times faster. Inline instrumentation requires a gcc version
+of 5.0 or later.
 
 Currently KASAN works only with the SLUB memory allocator.
 For better bug detection and nicer report, enable CONFIG_STACKTRACE and put
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index f6befa9855c1..61ab1628a057 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -3787,6 +3787,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                                         READ_CAPACITY_16 command);
                                 f = NO_REPORT_OPCODES (don't use report opcodes
                                         command, uas only);
+                                g = MAX_SECTORS_240 (don't transfer more than
+                                        240 sectors at a time, uas only);
                                 h = CAPACITY_HEURISTICS (decrease the
                                         reported device capacity by one
                                         sector if the number is odd);
diff --git a/Documentation/module-signing.txt b/Documentation/module-signing.txt
index 09c2382ad055..c72702ec1ded 100644
--- a/Documentation/module-signing.txt
+++ b/Documentation/module-signing.txt
@@ -119,9 +119,9 @@ Most notably, in the x509.genkey file, the req_distinguished_name section
 should be altered from the default:
 
         [ req_distinguished_name ]
-        O = Magrathea
-        CN = Glacier signing key
-        emailAddress = slartibartfast@magrathea.h2g2
+        #O = Unspecified company
+        CN = Build time autogenerated kernel key
+        #emailAddress = unspecified.user@unspecified.company
 
 The generated RSA key size can also be set with:
 
diff --git a/Documentation/networking/mpls-sysctl.txt b/Documentation/networking/mpls-sysctl.txt
index 639ddf0ece9b..9ed15f86c17c 100644
--- a/Documentation/networking/mpls-sysctl.txt
+++ b/Documentation/networking/mpls-sysctl.txt
@@ -18,3 +18,12 @@ platform_labels - INTEGER
 
         Possible values: 0 - 1048575
         Default: 0
+
+conf/<interface>/input - BOOL
+        Control whether packets can be input on this interface.
+
+        If disabled, packets will be discarded without further
+        processing.
+
+        0 - disabled (default)
+        not 0 - enabled
diff --git a/Documentation/networking/scaling.txt b/Documentation/networking/scaling.txt
index cbfac0949635..59f4db2a0c85 100644
--- a/Documentation/networking/scaling.txt
+++ b/Documentation/networking/scaling.txt
@@ -282,7 +282,7 @@ following is true:
 
 - The current CPU's queue head counter >= the recorded tail counter
   value in rps_dev_flow[i]
-- The current CPU is unset (equal to RPS_NO_CPU)
+- The current CPU is unset (>= nr_cpu_ids)
 - The current CPU is offline
 
 After this check, the packet is sent to the (possibly updated) current
diff --git a/Documentation/powerpc/transactional_memory.txt b/Documentation/powerpc/transactional_memory.txt
index ba0a2a4a54ba..ded69794a5c0 100644
--- a/Documentation/powerpc/transactional_memory.txt
+++ b/Documentation/powerpc/transactional_memory.txt
@@ -74,23 +74,22 @@ Causes of transaction aborts
 Syscalls
 ========
 
-Syscalls made from within an active transaction will not be performed and the
-transaction will be doomed by the kernel with the failure code TM_CAUSE_SYSCALL
-| TM_CAUSE_PERSISTENT.
+Performing syscalls from within transaction is not recommended, and can lead
+to unpredictable results.
 
-Syscalls made from within a suspended transaction are performed as normal and
-the transaction is not explicitly doomed by the kernel.  However, what the
-kernel does to perform the syscall may result in the transaction being doomed
-by the hardware.  The syscall is performed in suspended mode so any side
-effects will be persistent, independent of transaction success or failure.  No
-guarantees are provided by the kernel about which syscalls will affect
-transaction success.
+Syscalls do not by design abort transactions, but beware: The kernel code will
+not be running in transactional state.  The effect of syscalls will always
+remain visible, but depending on the call they may abort your transaction as a
+side-effect, read soon-to-be-aborted transactional data that should not remain
+invisible, etc.  If you constantly retry a transaction that constantly aborts
+itself by calling a syscall, you'll have a livelock & make no progress.
 
-Care must be taken when relying on syscalls to abort during active transactions
-if the calls are made via a library.  Libraries may cache values (which may
-give the appearance of success) or perform operations that cause transaction
-failure before entering the kernel (which may produce different failure codes).
-Examples are glibc's getpid() and lazy symbol resolution.
+Simple syscalls (e.g. sigprocmask()) "could" be OK.  Even things like write()
+from, say, printf() should be OK as long as the kernel does not access any
+memory that was accessed transactionally.
+
+Consider any syscalls that happen to work as debug-only -- not recommended for
+production use.  Best to queue them up till after the transaction is over.
 
 
 Signals
@@ -177,7 +176,8 @@ kernel aborted a transaction:
  TM_CAUSE_RESCHED       Thread was rescheduled.
  TM_CAUSE_TLBI          Software TLB invalid.
  TM_CAUSE_FAC_UNAV      FP/VEC/VSX unavailable trap.
- TM_CAUSE_SYSCALL       Syscall from active transaction.
+ TM_CAUSE_SYSCALL       Currently unused; future syscalls that must abort
+                        transactions for consistency will use this.
  TM_CAUSE_SIGNAL        Signal delivered.
  TM_CAUSE_MISC          Currently unused.
  TM_CAUSE_ALIGNMENT     Alignment fault.
diff --git a/MAINTAINERS b/MAINTAINERS
index e9919782444b..246ca6964158 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -892,11 +892,10 @@ S:	Maintained
 F:      arch/arm/mach-alpine/
 
 ARM/ATMEL AT91RM9200 AND AT91SAM ARM ARCHITECTURES
-M:      Andrew Victor <linux@maxim.org.za>
 M:      Nicolas Ferre <nicolas.ferre@atmel.com>
+M:      Alexandre Belloni <alexandre.belloni@free-electrons.com>
 M:      Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:      http://maxim.org.za/at91_26.html
 W:      http://www.linux4sam.org
 S:      Supported
 F:      arch/arm/mach-at91/
@@ -990,6 +989,12 @@ F:	drivers/clocksource/timer-prima2.c
 F:      drivers/clocksource/timer-atlas7.c
 N:      [^a-z]sirf
 
+ARM/CONEXANT DIGICOLOR MACHINE SUPPORT
+M:      Baruch Siach <baruch@tkos.co.il>
+L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:      Maintained
+N:      digicolor
+
 ARM/EBSA110 MACHINE SUPPORT
 M:      Russell King <linux@arm.linux.org.uk>
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1439,9 +1444,10 @@ ARM/SOCFPGA ARCHITECTURE
 M:      Dinh Nguyen <dinguyen@opensource.altera.com>
 S:      Maintained
 F:      arch/arm/mach-socfpga/
+F:      arch/arm/boot/dts/socfpga*
+F:      arch/arm/configs/socfpga_defconfig
 W:      http://www.rocketboards.org
-T:      git://git.rocketboards.org/linux-socfpga.git
-T:      git://git.rocketboards.org/linux-socfpga-next.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git
 
 ARM/SOCFPGA CLOCK FRAMEWORK SUPPORT
 M:      Dinh Nguyen <dinguyen@opensource.altera.com>
@@ -2116,8 +2122,9 @@ S:	Supported
 F:      drivers/net/ethernet/broadcom/bnx2x/
 
 BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITECTURE
-M:      Christian Daudt <bcm@fixthebug.org>
 M:      Florian Fainelli <f.fainelli@gmail.com>
+M:      Ray Jui <rjui@broadcom.com>
+M:      Scott Branden <sbranden@broadcom.com>
 L:      bcm-kernel-feedback-list@broadcom.com
 T:      git git://github.com/broadcom/mach-bcm
 S:      Maintained
@@ -2168,7 +2175,6 @@ S:	Maintained
 F:      drivers/usb/gadget/udc/bcm63xx_udc.*
 
 BROADCOM BCM7XXX ARM ARCHITECTURE
-M:      Marc Carino <marc.ceeeee@gmail.com>
 M:      Brian Norris <computersforpeace@gmail.com>
 M:      Gregory Fong <gregory.0xf0@gmail.com>
 M:      Florian Fainelli <f.fainelli@gmail.com>
@@ -3413,6 +3419,13 @@ F:	drivers/gpu/drm/rcar-du/
 F:      drivers/gpu/drm/shmobile/
 F:      include/linux/platform_data/shmob_drm.h
 
+DRM DRIVERS FOR ROCKCHIP
+M:      Mark Yao <mark.yao@rock-chips.com>
+L:      dri-devel@lists.freedesktop.org
+S:      Maintained
+F:      drivers/gpu/drm/rockchip/
+F:      Documentation/devicetree/bindings/video/rockchip*
+
 DSBR100 USB FM RADIO DRIVER
 M:      Alexey Klimov <klimov.linux@gmail.com>
 L:      linux-media@vger.kernel.org
@@ -5035,17 +5048,19 @@ S:	Orphan
 F:      drivers/video/fbdev/imsttfb.c
 
 INFINIBAND SUBSYSTEM
-M:      Roland Dreier <roland@kernel.org>
+M:      Doug Ledford <dledford@redhat.com>
 M:      Sean Hefty <sean.hefty@intel.com>
 M:      Hal Rosenstock <hal.rosenstock@gmail.com>
 L:      linux-rdma@vger.kernel.org
 W:      http://www.openfabrics.org/
 Q:      http://patchwork.kernel.org/project/linux-rdma/list/
-T:      git git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git
+T:      git git://github.com/dledford/linux.git
 S:      Supported
 F:      Documentation/infiniband/
 F:      drivers/infiniband/
 F:      include/uapi/linux/if_infiniband.h
+F:      include/uapi/rdma/
+F:      include/rdma/
 
 INOTIFY
 M:      John McCutchan <john@johnmccutchan.com>
@@ -5798,6 +5813,7 @@ F:	drivers/scsi/53c700*
 LED SUBSYSTEM
 M:      Bryan Wu <cooloney@gmail.com>
 M:      Richard Purdie <rpurdie@rpsys.net>
+M:      Jacek Anaszewski <j.anaszewski@samsung.com>
 L:      linux-leds@vger.kernel.org
 T:      git git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds.git
 S:      Maintained
@@ -10534,7 +10550,6 @@ F:	include/linux/virtio_console.h
 F:      include/uapi/linux/virtio_console.h
 
 VIRTIO CORE, NET AND BLOCK DRIVERS
-M:      Rusty Russell <rusty@rustcorp.com.au>
 M:      "Michael S. Tsirkin" <mst@redhat.com>
 L:      virtualization@lists.linux-foundation.org
 S:      Maintained
@@ -11042,6 +11057,7 @@ F:	drivers/media/pci/zoran/
 ZRAM COMPRESSED RAM BLOCK DEVICE DRVIER
 M:      Minchan Kim <minchan@kernel.org>
 M:      Nitin Gupta <ngupta@vflare.org>
+R:      Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
 F:      drivers/block/zram/
diff --git a/Makefile b/Makefile
index 7ff1239f9cd2..eae539d69bf3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 4
 PATCHLEVEL = 1
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc3
 NAME = Hurr durr I'ma sheep
 
 # *DOCUMENTATION*
diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index 8ae29c955c11..c17097d2c167 100644
--- a/arch/arm/boot/dts/am437x-sk-evm.dts
+++ b/arch/arm/boot/dts/am437x-sk-evm.dts
@@ -49,7 +49,7 @@
                 pinctrl-0 = <&matrix_keypad_pins>;
 
                 debounce-delay-ms = <5>;
-                col-scan-delay-us = <1500>;
+                col-scan-delay-us = <5>;
 
                 row-gpios = <&gpio5 5 GPIO_ACTIVE_HIGH          /* Bank5, pin5 */
                                 &gpio5 6 GPIO_ACTIVE_HIGH>;     /* Bank5, pin6 */
@@ -473,7 +473,7 @@
                 interrupt-parent = <&gpio0>;
                 interrupts = <31 0>;
 
-                wake-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+                reset-gpios = <&gpio1 28 GPIO_ACTIVE_LOW>;
 
                 touchscreen-size-x = <480>;
                 touchscreen-size-y = <272>;
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 15f198e4864d..7128fad991ac 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -18,6 +18,7 @@
         aliases {
                 rtc0 = &mcp_rtc;
                 rtc1 = &tps659038_rtc;
+                rtc2 = &rtc;
         };
 
         memory {
@@ -83,7 +84,7 @@
         gpio_fan: gpio_fan {
                 /* Based on 5v 500mA AFB02505HHB */
                 compatible = "gpio-fan";
-                gpios =  <&tps659038_gpio 1 GPIO_ACTIVE_HIGH>;
+                gpios =  <&tps659038_gpio 2 GPIO_ACTIVE_HIGH>;
                 gpio-fan,speed-map = <0     0>,
                                      <13000 1>;
                 #cooling-cells = <2>;
@@ -130,8 +131,8 @@
 
         uart3_pins_default: uart3_pins_default {
                 pinctrl-single,pins = <
-                        0x248 (PIN_INPUT_SLEW | MUX_MODE0) /* uart3_rxd.rxd */
-                        0x24c (PIN_INPUT_SLEW | MUX_MODE0) /* uart3_txd.txd */
+                        0x3f8 (PIN_INPUT_SLEW | MUX_MODE2) /* uart2_ctsn.uart3_rxd */
+                        0x3fc (PIN_INPUT_SLEW | MUX_MODE1) /* uart2_rtsn.uart3_txd */
                 >;
         };
 
@@ -455,7 +456,7 @@
         mcp_rtc: rtc@6f {
                 compatible = "microchip,mcp7941x";
                 reg = <0x6f>;
-                interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_LOW>;  /* IRQ_SYS_1N */
+                interrupts = <GIC_SPI 2 IRQ_TYPE_EDGE_RISING>;  /* IRQ_SYS_1N */
 
                 pinctrl-names = "default";
                 pinctrl-0 = <&mcp79410_pins_default>;
@@ -478,7 +479,7 @@
 &uart3 {
         status = "okay";
         interrupts-extended = <&crossbar_mpu GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
-                              <&dra7_pmx_core 0x248>;
+                              <&dra7_pmx_core 0x3f8>;
 
         pinctrl-names = "default";
         pinctrl-0 = <&uart3_pins_default>;
diff --git a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
index e3b08fb959e5..990e8a2100f0 100644
--- a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
+++ b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
@@ -105,6 +105,10 @@
                 };
 
                 internal-regs {
+                        rtc@10300 {
+                                /* No crystal connected to the internal RTC */
+                                status = "disabled";
+                        };
                         serial@12000 {
                                 status = "okay";
                         };
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 5332b57b4950..f03a091cd076 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -911,7 +911,7 @@
                         ti,clock-cycles = <16>;
 
                         reg = <0x4ae07ddc 0x4>, <0x4ae07de0 0x4>,
-                              <0x4ae06014 0x4>, <0x4a003b20 0x8>,
+                              <0x4ae06014 0x4>, <0x4a003b20 0xc>,
                               <0x4ae0c158 0x4>;
                         reg-names = "setup-address", "control-address",
                                     "int-address", "efuse-address",
@@ -944,7 +944,7 @@
                         ti,clock-cycles = <16>;
 
                         reg = <0x4ae07e34 0x4>, <0x4ae07e24 0x4>,
-                              <0x4ae06010 0x4>, <0x4a0025cc 0x8>,
+                              <0x4ae06010 0x4>, <0x4a0025cc 0xc>,
                               <0x4a002470 0x4>;
                         reg-names = "setup-address", "control-address",
                                     "int-address", "efuse-address",
@@ -977,7 +977,7 @@
                         ti,clock-cycles = <16>;
 
                         reg = <0x4ae07e30 0x4>, <0x4ae07e20 0x4>,
-                              <0x4ae06010 0x4>, <0x4a0025e0 0x8>,
+                              <0x4ae06010 0x4>, <0x4a0025e0 0xc>,
                               <0x4a00246c 0x4>;
                         reg-names = "setup-address", "control-address",
                                     "int-address", "efuse-address",
@@ -1010,7 +1010,7 @@
                         ti,clock-cycles = <16>;
 
                         reg = <0x4ae07de4 0x4>, <0x4ae07de8 0x4>,
-                              <0x4ae06010 0x4>, <0x4a003b08 0x8>,
+                              <0x4ae06010 0x4>, <0x4a003b08 0xc>,
                               <0x4ae0c154 0x4>;
                         reg-names = "setup-address", "control-address",
                                     "int-address", "efuse-address",
@@ -1203,7 +1203,7 @@
                         status = "disabled";
                 };
 
-                rtc@48838000 {
+                rtc: rtc@48838000 {
                         compatible = "ti,am3352-rtc";
                         reg = <0x48838000 0x100>;
                         interrupts = <GIC_SPI 217 IRQ_TYPE_LEVEL_HIGH>,
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index 8de12af7c276..d6b49e5b32e9 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -9,6 +9,7 @@
 
 #include <dt-bindings/sound/samsung-i2s.h>
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/clock/maxim,max77686.h>
 #include "exynos4412.dtsi"
 
 / {
@@ -105,6 +106,8 @@
 
         rtc@10070000 {
                 status = "okay";
+                clocks = <&clock CLK_RTC>, <&max77686 MAX77686_CLK_AP>;
+                clock-names = "rtc", "rtc_src";
         };
 
         g2d@10800000 {
diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index 2657e842e5a5..1eca97ee4bd6 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -567,6 +567,7 @@
         num-slots = <1>;
         broken-cd;
         cap-sdio-irq;
+        keep-power-in-suspend;
         card-detect-delay = <200>;
         samsung,dw-mshc-ciu-div = <3>;
         samsung,dw-mshc-sdr-timing = <2 3>;
diff --git a/arch/arm/boot/dts/exynos5420-trip-points.dtsi b/arch/arm/boot/dts/exynos5420-trip-points.dtsi
index 5d31fc140823..2180a0152c9b 100644
--- a/arch/arm/boot/dts/exynos5420-trip-points.dtsi
+++ b/arch/arm/boot/dts/exynos5420-trip-points.dtsi
@@ -28,7 +28,7 @@ trips {
                 type = "active";
         };
         cpu-crit-0 {
-                temperature = <1200000>; /* millicelsius */
+                temperature = <120000>; /* millicelsius */
                 hysteresis = <0>; /* millicelsius */
                 type = "critical";
         };
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index f67b23f303c3..45317538bbae 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -536,6 +536,7 @@
                 clock-names = "dp";
                 phys = <&dp_phy>;
                 phy-names = "dp";
+                power-domains = <&disp_pd>;
         };
 
         mipi_phy: video-phy@10040714 {
diff --git a/arch/arm/boot/dts/exynos5440-trip-points.dtsi b/arch/arm/boot/dts/exynos5440-trip-points.dtsi
index 48adfa8f4300..356e963edf11 100644
--- a/arch/arm/boot/dts/exynos5440-trip-points.dtsi
+++ b/arch/arm/boot/dts/exynos5440-trip-points.dtsi
@@ -18,7 +18,7 @@ trips {
                 type = "active";
         };
         cpu-crit-0 {
-                temperature = <1050000>; /* millicelsius */
+                temperature = <105000>; /* millicelsius */
                 hysteresis = <0>; /* millicelsius */
                 type = "critical";
         };
diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts
index 7e6eef2488e8..82045398bf1f 100644
--- a/arch/arm/boot/dts/imx23-olinuxino.dts
+++ b/arch/arm/boot/dts/imx23-olinuxino.dts
@@ -12,6 +12,7 @@
  */
 
 /dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
 #include "imx23.dtsi"
 
 / {
@@ -93,6 +94,7 @@
 
         ahb@80080000 {
                 usb0: usb@80080000 {
+                        dr_mode = "host";
                         vbus-supply = <&reg_usb0_vbus>;
                         status = "okay";
                 };
@@ -122,7 +124,7 @@
 
                 user {
                         label = "green";
-                        gpios = <&gpio2 1 1>;
+                        gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
                 };
         };
 };
diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi
index e4d3aecc4ed2..677f81d9dcd5 100644
--- a/arch/arm/boot/dts/imx25.dtsi
+++ b/arch/arm/boot/dts/imx25.dtsi
@@ -428,6 +428,7 @@
 
                         pwm4: pwm@53fc8000 {
                                 compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
+                                #pwm-cells = <2>;
                                 reg = <0x53fc8000 0x4000>;
                                 clocks = <&clks 108>, <&clks 52>;
                                 clock-names = "ipg", "per";
diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 25e25f82fbae..4e073e854742 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -913,7 +913,7 @@
                                               80 81 68 69
                                               70 71 72 73
                                               74 75 76 77>;
-                                interrupt-names = "auart4-rx", "aurat4-tx", "spdif-tx", "empty",
+                                interrupt-names = "auart4-rx", "auart4-tx", "spdif-tx", "empty",
                                                   "saif0", "saif1", "i2c0", "i2c1",
                                                   "auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx",
                                                   "auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx";
diff --git a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
index 19cc269a08d4..1ce6133b67f5 100644
--- a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
@@ -31,6 +31,7 @@
                         regulator-min-microvolt = <5000000>;
                         regulator-max-microvolt = <5000000>;
                         gpio = <&gpio4 15 0>;
+                        enable-active-high;
                 };
 
                 reg_usb_h1_vbus: regulator@1 {
@@ -40,6 +41,7 @@
                         regulator-min-microvolt = <5000000>;
                         regulator-max-microvolt = <5000000>;
                         gpio = <&gpio1 0 0>;
+                        enable-active-high;
                 };
         };
 
diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
index 46b2fed7c319..3b24b12651b2 100644
--- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
@@ -185,7 +185,6 @@
 &i2c3 {
         pinctrl-names = "default";
         pinctrl-0 = <&pinctrl_i2c3>;
-        pinctrl-assert-gpios = <&gpio5 4 GPIO_ACTIVE_HIGH>;
         status = "okay";
 
         max7310_a: gpio@30 {
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index a29315833ecd..5c16145920ea 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -498,6 +498,8 @@
                 DRVDD-supply = <&vmmc2>;
                 IOVDD-supply = <&vio>;
                 DVDD-supply = <&vio>;
+
+                ai3x-micbias-vg = <1>;
         };
 
         tlv320aic3x_aux: tlv320aic3x@19 {
@@ -509,6 +511,8 @@
                 DRVDD-supply = <&vmmc2>;
                 IOVDD-supply = <&vio>;
                 DVDD-supply = <&vio>;
+
+                ai3x-micbias-vg = <2>;
         };
 
         tsl2563: tsl2563@29 {
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index d18a90f5eca3..69a40cfc1f29 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -456,6 +456,7 @@
                 };
 
                 mmu_isp: mmu@480bd400 {
+                        #iommu-cells = <0>;
                         compatible = "ti,omap2-iommu";
                         reg = <0x480bd400 0x80>;
                         interrupts = <24>;
@@ -464,6 +465,7 @@
                 };
 
                 mmu_iva: mmu@5d000000 {
+                        #iommu-cells = <0>;
                         compatible = "ti,omap2-iommu";
                         reg = <0x5d000000 0x80>;
                         interrupts = <28>;
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index efe5f737f39b..7d24ae0306b5 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -128,7 +128,7 @@
          * hierarchy.
          */
         ocp {
-                compatible = "ti,omap4-l3-noc", "simple-bus";
+                compatible = "ti,omap5-l3-noc", "simple-bus";
                 #address-cells = <1>;
                 #size-cells = <1>;
                 ranges;
diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index 74c3212f1f11..824ddab9c3ad 100644
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -545,7 +545,7 @@
                 compatible = "adi,adv7511w";
                 reg = <0x39>;
                 interrupt-parent = <&gpio3>;
-                interrupts = <29 IRQ_TYPE_EDGE_FALLING>;
+                interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
 
                 adi,input-depth = <8>;
                 adi,input-colorspace = "rgb";
diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index bfd3f1c734b8..2201cd5da3bb 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -1017,23 +1017,6 @@
                         status = "disabled";
                 };
 
-                vmmci: regulator-gpio {
-                        compatible = "regulator-gpio";
-
-                        regulator-min-microvolt = <1800000>;
-                        regulator-max-microvolt = <2900000>;
-                        regulator-name = "mmci-reg";
-                        regulator-type = "voltage";
-
-                        startup-delay-us = <100>;
-                        enable-active-high;
-
-                        states = <1800000 0x1
-                                  2900000 0x0>;
-
-                        status = "disabled";
-                };
-
                 mcde@a0350000 {
                         compatible = "stericsson,mcde";
                         reg = <0xa0350000 0x1000>, /* MCDE */
diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index bf8f0eddc2c0..744c1e3a744d 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -111,6 +111,21 @@
                         pinctrl-1 = <&i2c3_sleep_mode>;
                 };
 
+                vmmci: regulator-gpio {
+                        compatible = "regulator-gpio";
+
+                        regulator-min-microvolt = <1800000>;
+                        regulator-max-microvolt = <2900000>;
+                        regulator-name = "mmci-reg";
+                        regulator-type = "voltage";
+
+                        startup-delay-us = <100>;
+                        enable-active-high;
+
+                        states = <1800000 0x1
+                                  2900000 0x0>;
+                };
+
                 // External Micro SD slot
                 sdi0_per1@80126000 {
                         arm,primecell-periphid = <0x10480180>;
diff --git a/arch/arm/boot/dts/ste-snowball.dts b/arch/arm/boot/dts/ste-snowball.dts
index 206826a855c0..1bc84ebdccaa 100644
--- a/arch/arm/boot/dts/ste-snowball.dts
+++ b/arch/arm/boot/dts/ste-snowball.dts
@@ -146,8 +146,21 @@
                 };
 
                 vmmci: regulator-gpio {
+                        compatible = "regulator-gpio";
+
                         gpios = <&gpio7 4 0x4>;
                         enable-gpio = <&gpio6 25 0x4>;
+
+                        regulator-min-microvolt = <1800000>;
+                        regulator-max-microvolt = <2900000>;
+                        regulator-name = "mmci-reg";
+                        regulator-type = "voltage";
+
+                        startup-delay-us = <100>;
+                        enable-active-high;
+
+                        states = <1800000 0x1
+                                  2900000 0x0>;
                 };
 
                 // External Micro SD slot
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index ab86655c1f4b..0ca4a3eaf65d 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -39,11 +39,14 @@ CONFIG_ARCH_HIP04=y
 CONFIG_ARCH_KEYSTONE=y
 CONFIG_ARCH_MESON=y
 CONFIG_ARCH_MXC=y
+CONFIG_SOC_IMX50=y
 CONFIG_SOC_IMX51=y
 CONFIG_SOC_IMX53=y
 CONFIG_SOC_IMX6Q=y
 CONFIG_SOC_IMX6SL=y
+CONFIG_SOC_IMX6SX=y
 CONFIG_SOC_VF610=y
+CONFIG_SOC_LS1021A=y
 CONFIG_ARCH_OMAP3=y
 CONFIG_ARCH_OMAP4=y
 CONFIG_SOC_OMAP5=y
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 9ff7b54b2a83..3743ca221d40 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -393,7 +393,7 @@ CONFIG_TI_EDMA=y
 CONFIG_DMA_OMAP=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXTCON=m
-CONFIG_EXTCON_GPIO=m
+CONFIG_EXTCON_USB_GPIO=m
 CONFIG_EXTCON_PALMAS=m
 CONFIG_TI_EMIF=m
 CONFIG_PWM=y
diff --git a/arch/arm/include/asm/dma-iommu.h b/arch/arm/include/asm/dma-iommu.h
index 8e3fcb924db6..2ef282f96651 100644
--- a/arch/arm/include/asm/dma-iommu.h
+++ b/arch/arm/include/asm/dma-iommu.h
@@ -25,7 +25,7 @@ struct dma_iommu_mapping {
 };
 
 struct dma_iommu_mapping *
-arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, size_t size);
+arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, u64 size);
 
 void arm_iommu_release_mapping(struct dma_iommu_mapping *mapping);
 
diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h
index 2f7e6ff67d51..0b579b2f4e0e 100644
--- a/arch/arm/include/asm/xen/page.h
+++ b/arch/arm/include/asm/xen/page.h
@@ -110,5 +110,6 @@ static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn)
 bool xen_arch_need_swiotlb(struct device *dev,
                            unsigned long pfn,
                            unsigned long mfn);
+unsigned long xen_get_swiotlb_free_pages(unsigned int order);
 
 #endif /* _ASM_ARM_XEN_PAGE_H */
diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c
index 91c7ba182dcd..213919ba326f 100644
--- a/arch/arm/kernel/perf_event_cpu.c
+++ b/arch/arm/kernel/perf_event_cpu.c
@@ -303,12 +303,17 @@ static int probe_current_pmu(struct arm_pmu *pmu)
 
 static int of_pmu_irq_cfg(struct platform_device *pdev)
 {
-        int i;
+        int i, irq;
         int *irqs = kcalloc(pdev->num_resources, sizeof(*irqs), GFP_KERNEL);
 
         if (!irqs)
                 return -ENOMEM;
 
+        /* Don't bother with PPIs; they're already affine */
+        irq = platform_get_irq(pdev, 0);
+        if (irq >= 0 && irq_is_percpu(irq))
+                return 0;
+
         for (i = 0; i < pdev->num_resources; ++i) {
                 struct device_node *dn;
                 int cpu;
@@ -317,7 +322,7 @@ static int of_pmu_irq_cfg(struct platform_device *pdev)
                                       i);
                 if (!dn) {
                         pr_warn("Failed to parse %s/interrupt-affinity[%d]\n",
-                                of_node_full_name(dn), i);
+                                of_node_full_name(pdev->dev.of_node), i);
                         break;
                 }
 
diff --git a/arch/arm/mach-imx/devices/platform-sdhci-esdhc-imx.c b/arch/arm/mach-imx/devices/platform-sdhci-esdhc-imx.c
index fb8d4a2ad48c..a5edd7d60266 100644
--- a/arch/arm/mach-imx/devices/platform-sdhci-esdhc-imx.c
+++ b/arch/arm/mach-imx/devices/platform-sdhci-esdhc-imx.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010 Pengutronix, Wolfram Sang <w.sang@pengutronix.de>
+ * Copyright (C) 2010 Pengutronix, Wolfram Sang <kernel@pengutronix.de>
  *
  * 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
diff --git a/arch/arm/mach-omap2/prm-regbits-34xx.h b/arch/arm/mach-omap2/prm-regbits-34xx.h
index cbefbd7cfdb5..661d753df584 100644
--- a/arch/arm/mach-omap2/prm-regbits-34xx.h
+++ b/arch/arm/mach-omap2/prm-regbits-34xx.h
@@ -112,6 +112,7 @@
 #define OMAP3430_VC_CMD_ONLP_SHIFT                      16
 #define OMAP3430_VC_CMD_RET_SHIFT                       8
 #define OMAP3430_VC_CMD_OFF_SHIFT                       0
+#define OMAP3430_SREN_MASK                              (1 << 4)
 #define OMAP3430_HSEN_MASK                              (1 << 3)
 #define OMAP3430_MCODE_MASK                             (0x7 << 0)
 #define OMAP3430_VALID_MASK                             (1 << 24)
diff --git a/arch/arm/mach-omap2/prm-regbits-44xx.h b/arch/arm/mach-omap2/prm-regbits-44xx.h
index b1c7a33e00e7..e794828dee55 100644
--- a/arch/arm/mach-omap2/prm-regbits-44xx.h
+++ b/arch/arm/mach-omap2/prm-regbits-44xx.h
@@ -35,6 +35,7 @@
 #define OMAP4430_GLOBAL_WARM_SW_RST_SHIFT                               1
 #define OMAP4430_GLOBAL_WUEN_MASK                                       (1 << 16)
 #define OMAP4430_HSMCODE_MASK                                           (0x7 << 0)
+#define OMAP4430_SRMODEEN_MASK                                          (1 << 4)
 #define OMAP4430_HSMODEEN_MASK                                          (1 << 3)
 #define OMAP4430_HSSCLL_SHIFT                                           24
 #define OMAP4430_ICEPICK_RST_SHIFT                                      9
diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c
index be9ef834fa81..076fd20d7e5a 100644
--- a/arch/arm/mach-omap2/vc.c
+++ b/arch/arm/mach-omap2/vc.c
@@ -316,7 +316,8 @@ static void __init omap3_vc_init_pmic_signaling(struct voltagedomain *voltdm)
          * idle. And we can also scale voltages to zero for off-idle.
          * Note that no actual voltage scaling during off-idle will
          * happen unless the board specific twl4030 PMIC scripts are
-         * loaded.
+         * loaded. See also omap_vc_i2c_init for comments regarding
+         * erratum i531.
          */
         val = voltdm->read(OMAP3_PRM_VOLTCTRL_OFFSET);
         if (!(val & OMAP3430_PRM_VOLTCTRL_SEL_OFF)) {
@@ -704,9 +705,16 @@ static void __init omap_vc_i2c_init(struct voltagedomain *voltdm)
                 return;
         }
 
+        /*
+         * Note that for omap3 OMAP3430_SREN_MASK clears SREN to work around
+         * erratum i531 "Extra Power Consumed When Repeated Start Operation
+         * Mode Is Enabled on I2C Interface Dedicated for Smart Reflex (I2C4)".
+         * Otherwise I2C4 eventually leads into about 23mW extra power being
+         * consumed even during off idle using VMODE.
+         */
         i2c_high_speed = voltdm->pmic->i2c_high_speed;
         if (i2c_high_speed)
-                voltdm->rmw(vc->common->i2c_cfg_hsen_mask,
+                voltdm->rmw(vc->common->i2c_cfg_clear_mask,
                             vc->common->i2c_cfg_hsen_mask,
                             vc->common->i2c_cfg_reg);
 
diff --git a/arch/arm/mach-omap2/vc.h b/arch/arm/mach-omap2/vc.h
index cdbdd78e755e..89b83b7ff3ec 100644
--- a/arch/arm/mach-omap2/vc.h
+++ b/arch/arm/mach-omap2/vc.h
@@ -34,6 +34,7 @@ struct voltagedomain;
  * @cmd_ret_shift: RET field shift in PRM_VC_CMD_VAL_* register
  * @cmd_off_shift: OFF field shift in PRM_VC_CMD_VAL_* register
  * @i2c_cfg_reg: I2C configuration register offset
+ * @i2c_cfg_clear_mask: high-speed mode bit clear mask in I2C config register
  * @i2c_cfg_hsen_mask: high-speed mode bit field mask in I2C config register
  * @i2c_mcode_mask: MCODE field mask for I2C config register
  *
@@ -52,6 +53,7 @@ struct omap_vc_common {
         u8 cmd_ret_shift;
         u8 cmd_off_shift;
         u8 i2c_cfg_reg;
+        u8 i2c_cfg_clear_mask;
         u8 i2c_cfg_hsen_mask;
         u8 i2c_mcode_mask;
 };
diff --git a/arch/arm/mach-omap2/vc3xxx_data.c b/arch/arm/mach-omap2/vc3xxx_data.c
index 75bc4aa22b3a..71d74c9172c1 100644
--- a/arch/arm/mach-omap2/vc3xxx_data.c
+++ b/arch/arm/mach-omap2/vc3xxx_data.c
@@ -40,6 +40,7 @@ static struct omap_vc_common omap3_vc_common = {
         .cmd_onlp_shift  = OMAP3430_VC_CMD_ONLP_SHIFT,
         .cmd_ret_shift   = OMAP3430_VC_CMD_RET_SHIFT,
         .cmd_off_shift   = OMAP3430_VC_CMD_OFF_SHIFT,
+        .i2c_cfg_clear_mask = OMAP3430_SREN_MASK | OMAP3430_HSEN_MASK,
         .i2c_cfg_hsen_mask = OMAP3430_HSEN_MASK,
         .i2c_cfg_reg     = OMAP3_PRM_VC_I2C_CFG_OFFSET,
         .i2c_mcode_mask  = OMAP3430_MCODE_MASK,
diff --git a/arch/arm/mach-omap2/vc44xx_data.c b/arch/arm/mach-omap2/vc44xx_data.c
index 085e5d6a04fd..2abd5fa8a697 100644
--- a/arch/arm/mach-omap2/vc44xx_data.c
+++ b/arch/arm/mach-omap2/vc44xx_data.c
@@ -42,6 +42,7 @@ static const struct omap_vc_common omap4_vc_common = {
         .cmd_ret_shift = OMAP4430_RET_SHIFT,
         .cmd_off_shift = OMAP4430_OFF_SHIFT,
         .i2c_cfg_reg = OMAP4_PRM_VC_CFG_I2C_MODE_OFFSET,
+        .i2c_cfg_clear_mask = OMAP4430_SRMODEEN_MASK | OMAP4430_HSMODEEN_MASK,
         .i2c_cfg_hsen_mask = OMAP4430_HSMODEEN_MASK,
         .i2c_mcode_mask  = OMAP4430_HSMCODE_MASK,
 };
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 8896e71586f5..f09683687963 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -691,4 +691,13 @@ config SHARPSL_PM_MAX1111
 config PXA310_ULPI
         bool
 
+config PXA_SYSTEMS_CPLDS
+        tristate "Motherboard cplds"
+        default ARCH_LUBBOCK || MACH_MAINSTONE
+        help
+          This driver supports the Lubbock and Mainstone multifunction chip
+          found on the pxa25x development platform system (Lubbock) and pxa27x
+          development platform system (Mainstone). This IO board supports the
+          interrupts handling, ethernet controller, flash chips, etc ...
+
 endif
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index eb0bf7678a99..4087d334ecdf 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -90,4 +90,5 @@ obj-$(CONFIG_MACH_RAUMFELD_CONNECTOR)	+= raumfeld.o
 obj-$(CONFIG_MACH_RAUMFELD_SPEAKER)     += raumfeld.o
 obj-$(CONFIG_MACH_ZIPIT2)       += z2.o
 
+obj-$(CONFIG_PXA_SYSTEMS_CPLDS) += pxa_cplds_irqs.o
 obj-$(CONFIG_TOSA_BT)           += tosa-bt.o
diff --git a/arch/arm/mach-pxa/include/mach/lubbock.h b/arch/arm/mach-pxa/include/mach/lubbock.h
index 958cd6af9384..1eecf794acd2 100644
--- a/arch/arm/mach-pxa/include/mach/lubbock.h
+++ b/arch/arm/mach-pxa/include/mach/lubbock.h
@@ -37,7 +37,9 @@
 #define LUB_GP                  __LUB_REG(LUBBOCK_FPGA_PHYS + 0x100)
 
 /* Board specific IRQs */
-#define LUBBOCK_IRQ(x)          (IRQ_BOARD_START + (x))
+#define LUBBOCK_NR_IRQS         IRQ_BOARD_START
+
+#define LUBBOCK_IRQ(x)          (LUBBOCK_NR_IRQS + (x))
 #define LUBBOCK_SD_IRQ          LUBBOCK_IRQ(0)
 #define LUBBOCK_SA1111_IRQ      LUBBOCK_IRQ(1)
 #define LUBBOCK_USB_IRQ         LUBBOCK_IRQ(2)  /* usb connect */
@@ -47,8 +49,7 @@
 #define LUBBOCK_USB_DISC_IRQ    LUBBOCK_IRQ(6)  /* usb disconnect */
 #define LUBBOCK_LAST_IRQ        LUBBOCK_IRQ(6)
 
-#define LUBBOCK_SA1111_IRQ_BASE (IRQ_BOARD_START + 16)
-#define LUBBOCK_NR_IRQS         (IRQ_BOARD_START + 16 + 55)
+#define LUBBOCK_SA1111_IRQ_BASE (LUBBOCK_NR_IRQS + 32)
 
 #ifndef __ASSEMBLY__
 extern void lubbock_set_misc_wr(unsigned int mask, unsigned int set);
diff --git a/arch/arm/mach-pxa/include/mach/mainstone.h b/arch/arm/mach-pxa/include/mach/mainstone.h
index 1bfc4e822a41..e82a7d31104e 100644
--- a/arch/arm/mach-pxa/include/mach/mainstone.h
+++ b/arch/arm/mach-pxa/include/mach/mainstone.h
@@ -120,7 +120,9 @@
 #define MST_PCMCIA_PWR_VCC_50   0x4        /* voltage VCC = 5.0V */
 
 /* board specific IRQs */
-#define MAINSTONE_IRQ(x)        (IRQ_BOARD_START + (x))
+#define MAINSTONE_NR_IRQS       IRQ_BOARD_START
+
+#define MAINSTONE_IRQ(x)        (MAINSTONE_NR_IRQS + (x))
 #define MAINSTONE_MMC_IRQ       MAINSTONE_IRQ(0)
 #define MAINSTONE_USIM_IRQ      MAINSTONE_IRQ(1)
 #define MAINSTONE_USBC_IRQ      MAINSTONE_IRQ(2)
@@ -136,6 +138,4 @@
 #define MAINSTONE_S1_STSCHG_IRQ MAINSTONE_IRQ(14)
 #define MAINSTONE_S1_IRQ        MAINSTONE_IRQ(15)
 
-#define MAINSTONE_NR_IRQS       (IRQ_BOARD_START + 16)
-
 #endif
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index d8a1be619f21..4ac9ab80d24b 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -12,6 +12,7 @@
  *  published by the Free Software Foundation.
  */
 #include <linux/gpio.h>
+#include <linux/gpio/machine.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -123,84 +124,6 @@ void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
 }
 EXPORT_SYMBOL(lubbock_set_misc_wr);
 
-static unsigned long lubbock_irq_enabled;
-
-static void lubbock_mask_irq(struct irq_data *d)
-{
-        int lubbock_irq = (d->irq - LUBBOCK_IRQ(0));
-        LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
-}
-
-static void lubbock_unmask_irq(struct irq_data *d)
-{
-        int lubbock_irq = (d->irq - LUBBOCK_IRQ(0));
-        /* the irq can be acknowledged only if deasserted, so it's done here */
-        LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
-        LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
-}
-
-static struct irq_chip lubbock_irq_chip = {
-        .name           = "FPGA",
-        .irq_ack        = lubbock_mask_irq,
-        .irq_mask       = lubbock_mask_irq,
-        .irq_unmask     = lubbock_unmask_irq,
-};
-
-static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
-{
-        unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
-        do {
-                /* clear our parent irq */
-                desc->irq_data.chip->irq_ack(&desc->irq_data);
-                if (likely(pending)) {
-                        irq = LUBBOCK_IRQ(0) + __ffs(pending);
-                        generic_handle_irq(irq);
-                }
-                pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
-        } while (pending);
-}
-
-static void __init lubbock_init_irq(void)
-{
-        int irq;
-
-        pxa25x_init_irq();
-
-        /* setup extra lubbock irqs */
-        for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
-                irq_set_chip_and_handler(irq, &lubbock_irq_chip,
-                                         handle_level_irq);
-                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
-        }
-
-        irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lubbock_irq_handler);
-        irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
-}
-
-#ifdef CONFIG_PM
-
-static void lubbock_irq_resume(void)
-{
-        LUB_IRQ_MASK_EN = lubbock_irq_enabled;
-}
-
-static struct syscore_ops lubbock_irq_syscore_ops = {
-        .resume = lubbock_irq_resume,
-};
-
-static int __init lubbock_irq_device_init(void)
-{
-        if (machine_is_lubbock()) {
-                register_syscore_ops(&lubbock_irq_syscore_ops);
-                return 0;
-        }
-        return -ENODEV;
-}
-
-device_initcall(lubbock_irq_device_init);
-
-#endif
-
 static int lubbock_udc_is_connected(void)
 {
         return (LUB_MISC_RD & (1 << 9)) == 0;
@@ -383,11 +306,38 @@ static struct platform_device lubbock_flash_device[2] = {
         },
 };
 
+static struct resource lubbock_cplds_resources[] = {
+        [0] = {
+                .start  = LUBBOCK_FPGA_PHYS + 0xc0,
+                .end    = LUBBOCK_FPGA_PHYS + 0xe0 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = PXA_GPIO_TO_IRQ(0),
+                .end    = PXA_GPIO_TO_IRQ(0),
+                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
+        },
+        [2] = {
+                .start  = LUBBOCK_IRQ(0),
+                .end    = LUBBOCK_IRQ(6),
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device lubbock_cplds_device = {
+        .name           = "pxa_cplds_irqs",
+        .id             = -1,
+        .resource       = &lubbock_cplds_resources[0],
+        .num_resources  = 3,
+};
+
+
 static struct platform_device *devices[] __initdata = {
         &sa1111_device,
         &smc91x_device,
         &lubbock_flash_device[0],
         &lubbock_flash_device[1],
+        &lubbock_cplds_device,
 };
 
 static struct pxafb_mode_info sharp_lm8v31_mode = {
@@ -648,7 +598,7 @@ MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
         /* Maintainer: MontaVista Software Inc. */
         .map_io         = lubbock_map_io,
         .nr_irqs        = LUBBOCK_NR_IRQS,
-        .init_irq       = lubbock_init_irq,
+        .init_irq       = pxa25x_init_irq,
         .handle_irq     = pxa25x_handle_irq,
         .init_time      = pxa_timer_init,
         .init_machine   = lubbock_init,
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 78b84c0dfc79..2c0658cf6be2 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -13,6 +13,7 @@
  *  published by the Free Software Foundation.
  */
 #include <linux/gpio.h>
+#include <linux/gpio/machine.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/syscore_ops.h>
@@ -122,92 +123,6 @@ static unsigned long mainstone_pin_config[] = {
         GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
 };
 
-static unsigned long mainstone_irq_enabled;
-
-static void mainstone_mask_irq(struct irq_data *d)
-{
-        int mainstone_irq = (d->irq - MAINSTONE_IRQ(0));
-        MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
-}
-
-static void mainstone_unmask_irq(struct irq_data *d)
-{
-        int mainstone_irq = (d->irq - MAINSTONE_IRQ(0));
-        /* the irq can be acknowledged only if deasserted, so it's done here */
-        MST_INTSETCLR &= ~(1 << mainstone_irq);
-        MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
-}
-
-static struct irq_chip mainstone_irq_chip = {
-        .name           = "FPGA",
-        .irq_ack        = mainstone_mask_irq,
-        .irq_mask       = mainstone_mask_irq,
-        .irq_unmask     = mainstone_unmask_irq,
-};
-
-static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc)
-{
-        unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
-        do {
-                /* clear useless edge notification */
-                desc->irq_data.chip->irq_ack(&desc->irq_data);
-                if (likely(pending)) {
-                        irq = MAINSTONE_IRQ(0) + __ffs(pending);
-                        generic_handle_irq(irq);
-                }
-                pending = MST_INTSETCLR & mainstone_irq_enabled;
-        } while (pending);
-}
-
-static void __init mainstone_init_irq(void)
-{
-        int irq;
-
-        pxa27x_init_irq();
-
-        /* setup extra Mainstone irqs */
-        for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
-                irq_set_chip_and_handler(irq, &mainstone_irq_chip,
-                                         handle_level_irq);
-                if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
-                        set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
-                else
-                        set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
-        }
-        set_irq_flags(MAINSTONE_IRQ(8), 0);
-        set_irq_flags(MAINSTONE_IRQ(12), 0);
-
-        MST_INTMSKENA = 0;
-        MST_INTSETCLR = 0;
-
-        irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), mainstone_irq_handler);
-        irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
-}
-
-#ifdef CONFIG_PM
-
-static void mainstone_irq_resume(void)
-{
-        MST_INTMSKENA = mainstone_irq_enabled;
-}
-
-static struct syscore_ops mainstone_irq_syscore_ops = {
-        .resume = mainstone_irq_resume,
-};
-
-static int __init mainstone_irq_device_init(void)
-{
-        if (machine_is_mainstone())
-                register_syscore_ops(&mainstone_irq_syscore_ops);
-
-        return 0;
-}
-
-device_initcall(mainstone_irq_device_init);
-
-#endif
-
-
 static struct resource smc91x_resources[] = {
         [0] = {
                 .start  = (MST_ETH_PHYS + 0x300),
@@ -487,11 +402,37 @@ static struct platform_device mst_gpio_keys_device = {
         },
 };
 
+static struct resource mst_cplds_resources[] = {
+        [0] = {
+                .start  = MST_FPGA_PHYS + 0xc0,
+                .end    = MST_FPGA_PHYS + 0xe0 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = PXA_GPIO_TO_IRQ(0),
+                .end    = PXA_GPIO_TO_IRQ(0),
+                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
+        },
+        [2] = {
+                .start  = MAINSTONE_IRQ(0),
+                .end    = MAINSTONE_IRQ(15),
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device mst_cplds_device = {
+        .name           = "pxa_cplds_irqs",
+        .id             = -1,
+        .resource       = &mst_cplds_resources[0],
+        .num_resources  = 3,
+};
+
 static struct platform_device *platform_devices[] __initdata = {
         &smc91x_device,
         &mst_flash_device[0],
         &mst_flash_device[1],
         &mst_gpio_keys_device,
+        &mst_cplds_device,
 };
 
 static struct pxaohci_platform_data mainstone_ohci_platform_data = {
@@ -718,7 +659,7 @@ MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
         .atag_offset    = 0x100,        /* BLOB boot parameter setting */
         .map_io         = mainstone_map_io,
         .nr_irqs        = MAINSTONE_NR_IRQS,
-        .init_irq       = mainstone_init_irq,
+        .init_irq       = pxa27x_init_irq,
         .handle_irq     = pxa27x_handle_irq,
         .init_time      = pxa_timer_init,
         .init_machine   = mainstone_init,
diff --git a/arch/arm/mach-pxa/pxa_cplds_irqs.c b/arch/arm/mach-pxa/pxa_cplds_irqs.c
new file mode 100644
index 000000000000..f1aeb54fabe3
--- /dev/null
+++ b/arch/arm/mach-pxa/pxa_cplds_irqs.c
@@ -0,0 +1,200 @@
+/*
+ * Intel Reference Systems cplds
+ *
+ * Copyright (C) 2014 Robert Jarzmik
+ *
+ * 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.
+ *
+ * Cplds motherboard driver, supporting lubbock and mainstone SoC board.
+ */
+
+#include <linux/bitops.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+
+#define FPGA_IRQ_MASK_EN 0x0
+#define FPGA_IRQ_SET_CLR 0x10
+
+#define CPLDS_NB_IRQ    32
+
+struct cplds {
+        void __iomem *base;
+        int irq;
+        unsigned int irq_mask;
+        struct gpio_desc *gpio0;
+        struct irq_domain *irqdomain;
+};
+
+static irqreturn_t cplds_irq_handler(int in_irq, void *d)
+{
+        struct cplds *fpga = d;
+        unsigned long pending;
+        unsigned int bit;
+
+        pending = readl(fpga->base + FPGA_IRQ_SET_CLR) & fpga->irq_mask;
+        for_each_set_bit(bit, &pending, CPLDS_NB_IRQ)
+                generic_handle_irq(irq_find_mapping(fpga->irqdomain, bit));
+
+        return IRQ_HANDLED;
+}
+
+static void cplds_irq_mask_ack(struct irq_data *d)
+{
+        struct cplds *fpga = irq_data_get_irq_chip_data(d);
+        unsigned int cplds_irq = irqd_to_hwirq(d);
+        unsigned int set, bit = BIT(cplds_irq);
+
+        fpga->irq_mask &= ~bit;
+        writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN);
+        set = readl(fpga->base + FPGA_IRQ_SET_CLR);
+        writel(set & ~bit, fpga->base + FPGA_IRQ_SET_CLR);
+}
+
+static void cplds_irq_unmask(struct irq_data *d)
+{
+        struct cplds *fpga = irq_data_get_irq_chip_data(d);
+        unsigned int cplds_irq = irqd_to_hwirq(d);
+        unsigned int bit = BIT(cplds_irq);
+
+        fpga->irq_mask |= bit;
+        writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN);
+}
+
+static struct irq_chip cplds_irq_chip = {
+        .name           = "pxa_cplds",
+        .irq_mask_ack   = cplds_irq_mask_ack,
+        .irq_unmask     = cplds_irq_unmask,
+        .flags          = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_SKIP_SET_WAKE,
+};
+
+static int cplds_irq_domain_map(struct irq_domain *d, unsigned int irq,
+                                   irq_hw_number_t hwirq)
+{
+        struct cplds *fpga = d->host_data;
+
+        irq_set_chip_and_handler(irq, &cplds_irq_chip, handle_level_irq);
+        irq_set_chip_data(irq, fpga);
+
+        return 0;
+}
+
+static const struct irq_domain_ops cplds_irq_domain_ops = {
+        .xlate = irq_domain_xlate_twocell,
+        .map = cplds_irq_domain_map,
+};
+
+static int cplds_resume(struct platform_device *pdev)
+{
+        struct cplds *fpga = platform_get_drvdata(pdev);
+
+        writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN);
+
+        return 0;
+}
+
+static int cplds_probe(struct platform_device *pdev)
+{
+        struct resource *res;
+        struct cplds *fpga;
+        int ret;
+        unsigned int base_irq = 0;
+        unsigned long irqflags = 0;
+
+        fpga = devm_kzalloc(&pdev->dev, sizeof(*fpga), GFP_KERNEL);
+        if (!fpga)
+                return -ENOMEM;
+
+        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+        if (res) {
+                fpga->irq = (unsigned int)res->start;
+                irqflags = res->flags;
+        }
+        if (!fpga->irq)
+                return -ENODEV;
+
+        base_irq = platform_get_irq(pdev, 1);
+        if (base_irq < 0)
+                base_irq = 0;
+
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        fpga->base = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(fpga->base))
+                return PTR_ERR(fpga->base);
+
+        platform_set_drvdata(pdev, fpga);
+
+        writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN);
+        writel(0, fpga->base + FPGA_IRQ_SET_CLR);
+
+        ret = devm_request_irq(&pdev->dev, fpga->irq, cplds_irq_handler,
+                               irqflags, dev_name(&pdev->dev), fpga);
+        if (ret == -ENOSYS)
+                return -EPROBE_DEFER;
+
+        if (ret) {
+                dev_err(&pdev->dev, "couldn't request main irq%d: %d\n",
+                        fpga->irq, ret);
+                return ret;
+        }
+
+        irq_set_irq_wake(fpga->irq, 1);
+        fpga->irqdomain = irq_domain_add_linear(pdev->dev.of_node,
+                                               CPLDS_NB_IRQ,
+                                               &cplds_irq_domain_ops, fpga);
+        if (!fpga->irqdomain)
+                return -ENODEV;
+
+        if (base_irq) {
+                ret = irq_create_strict_mappings(fpga->irqdomain, base_irq, 0,
+                                                 CPLDS_NB_IRQ);
+                if (ret) {
+                        dev_err(&pdev->dev, "couldn't create the irq mapping %d..%d\n",
+                                base_irq, base_irq + CPLDS_NB_IRQ);
+                        return ret;
+                }
+        }
+
+        return 0;
+}
+
+static int cplds_remove(struct platform_device *pdev)
+{
+        struct cplds *fpga = platform_get_drvdata(pdev);
+
+        irq_set_chip_and_handler(fpga->irq, NULL, NULL);
+
+        return 0;
+}
+
+static const struct of_device_id cplds_id_table[] = {
+        { .compatible = "intel,lubbock-cplds-irqs", },
+        { .compatible = "intel,mainstone-cplds-irqs", },
+        { }
+};
+MODULE_DEVICE_TABLE(of, cplds_id_table);
+
+static struct platform_driver cplds_driver = {
+        .driver         = {
+                .name   = "pxa_cplds_irqs",
+                .of_match_table = of_match_ptr(cplds_id_table),
+        },
+        .probe          = cplds_probe,
+        .remove         = cplds_remove,
+        .resume         = cplds_resume,
+};
+
+module_platform_driver(cplds_driver);
+
+MODULE_DESCRIPTION("PXA Cplds interrupts driver");
+MODULE_AUTHOR("Robert Jarzmik <robert.jarzmik@free.fr>");
+MODULE_LICENSE("GPL");
diff --git a/arch/arm/mach-rockchip/pm.c b/arch/arm/mach-rockchip/pm.c
index b07d88602073..22812fe06460 100644
--- a/arch/arm/mach-rockchip/pm.c
+++ b/arch/arm/mach-rockchip/pm.c
@@ -44,9 +44,11 @@ static void __iomem *rk3288_bootram_base;
 static phys_addr_t rk3288_bootram_phy;
 
 static struct regmap *pmu_regmap;
+static struct regmap *grf_regmap;
 static struct regmap *sgrf_regmap;
 
 static u32 rk3288_pmu_pwr_mode_con;
+static u32 rk3288_grf_soc_con0;
 static u32 rk3288_sgrf_soc_con0;
 
 static inline u32 rk3288_l2_config(void)
@@ -70,12 +72,26 @@ static void rk3288_slp_mode_set(int level)
 {
         u32 mode_set, mode_set1;
 
+        regmap_read(grf_regmap, RK3288_GRF_SOC_CON0, &rk3288_grf_soc_con0);
+
         regmap_read(sgrf_regmap, RK3288_SGRF_SOC_CON0, &rk3288_sgrf_soc_con0);
 
         regmap_read(pmu_regmap, RK3288_PMU_PWRMODE_CON,
                     &rk3288_pmu_pwr_mode_con);
 
         /*
+         * We need set this bit GRF_FORCE_JTAG here, for the debug module,
+         * otherwise, it may become inaccessible after resume.
+         * This creates a potential security issue, as the sdmmc pins may
+         * accept jtag data for a short time during resume if no card is
+         * inserted.
+         * But this is of course also true for the regular boot, before we
+         * turn of the jtag/sdmmc autodetect.
+         */
+        regmap_write(grf_regmap, RK3288_GRF_SOC_CON0, GRF_FORCE_JTAG |
+                     GRF_FORCE_JTAG_WRITE);
+
+        /*
          * SGRF_FAST_BOOT_EN - system to boot from FAST_BOOT_ADDR
          * PCLK_WDT_GATE - disable WDT during suspend.
          */
@@ -83,6 +99,13 @@ static void rk3288_slp_mode_set(int level)
                      SGRF_PCLK_WDT_GATE | SGRF_FAST_BOOT_EN
                      | SGRF_PCLK_WDT_GATE_WRITE | SGRF_FAST_BOOT_EN_WRITE);
 
+        /*
+         * The dapswjdp can not auto reset before resume, that cause it may
+         * access some illegal address during resume. Let's disable it before
+         * suspend, and the MASKROM will enable it back.
+         */
+        regmap_write(sgrf_regmap, RK3288_SGRF_CPU_CON0, SGRF_DAPDEVICEEN_WRITE);
+
         /* booting address of resuming system is from this register value */
         regmap_write(sgrf_regmap, RK3288_SGRF_FAST_BOOT_ADDR,
                      rk3288_bootram_phy);
@@ -128,6 +151,9 @@ static void rk3288_slp_mode_set_resume(void)
         regmap_write(sgrf_regmap, RK3288_SGRF_SOC_CON0,
                      rk3288_sgrf_soc_con0 | SGRF_PCLK_WDT_GATE_WRITE
                      | SGRF_FAST_BOOT_EN_WRITE);
+
+        regmap_write(grf_regmap, RK3288_GRF_SOC_CON0, rk3288_grf_soc_con0 |
+                     GRF_FORCE_JTAG_WRITE);
 }
 
 static int rockchip_lpmode_enter(unsigned long arg)
@@ -186,6 +212,13 @@ static int rk3288_suspend_init(struct device_node *np)
                 return PTR_ERR(pmu_regmap);
         }
 
+        grf_regmap = syscon_regmap_lookup_by_compatible(
+                                "rockchip,rk3288-grf");
+        if (IS_ERR(grf_regmap)) {
+                pr_err("%s: could not find grf regmap\n", __func__);
+                return PTR_ERR(pmu_regmap);
+        }
+
         sram_np = of_find_compatible_node(NULL, NULL,
                                           "rockchip,rk3288-pmu-sram");
         if (!sram_np) {
diff --git a/arch/arm/mach-rockchip/pm.h b/arch/arm/mach-rockchip/pm.h
index 03ff31d8282d..f8a747bc1437 100644
--- a/arch/arm/mach-rockchip/pm.h
+++ b/arch/arm/mach-rockchip/pm.h
@@ -48,6 +48,10 @@ static inline void rockchip_suspend_init(void)
 #define RK3288_PMU_WAKEUP_RST_CLR_CNT   0x44
 #define RK3288_PMU_PWRMODE_CON1         0x90
 
+#define RK3288_GRF_SOC_CON0             0x244
+#define GRF_FORCE_JTAG                  BIT(12)
+#define GRF_FORCE_JTAG_WRITE            BIT(28)
+
 #define RK3288_SGRF_SOC_CON0            (0x0000)
 #define RK3288_SGRF_FAST_BOOT_ADDR      (0x0120)
 #define SGRF_PCLK_WDT_GATE              BIT(6)
@@ -55,6 +59,10 @@ static inline void rockchip_suspend_init(void)
 #define SGRF_FAST_BOOT_EN               BIT(8)
 #define SGRF_FAST_BOOT_EN_WRITE         BIT(24)
 
+#define RK3288_SGRF_CPU_CON0            (0x40)
+#define SGRF_DAPDEVICEEN                BIT(0)
+#define SGRF_DAPDEVICEEN_WRITE          BIT(16)
+
 #define RK3288_CRU_MODE_CON             0x50
 #define RK3288_CRU_SEL0_CON             0x60
 #define RK3288_CRU_SEL1_CON             0x64
diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c
index d360ec044b66..b6cf3b449428 100644
--- a/arch/arm/mach-rockchip/rockchip.c
+++ b/arch/arm/mach-rockchip/rockchip.c
@@ -30,11 +30,30 @@
 #include "pm.h"
 
 #define RK3288_GRF_SOC_CON0 0x244
+#define RK3288_TIMER6_7_PHYS 0xff810000
 
 static void __init rockchip_timer_init(void)
 {
         if (of_machine_is_compatible("rockchip,rk3288")) {
                 struct regmap *grf;
+                void __iomem *reg_base;
+
+                /*
+                 * Most/all uboot versions for rk3288 don't enable timer7
+                 * which is needed for the architected timer to work.
+                 * So make sure it is running during early boot.
+                 */
+                reg_base = ioremap(RK3288_TIMER6_7_PHYS, SZ_16K);
+                if (reg_base) {
+                        writel(0, reg_base + 0x30);
+                        writel(0xffffffff, reg_base + 0x20);
+                        writel(0xffffffff, reg_base + 0x24);
+                        writel(1, reg_base + 0x30);
+                        dsb();
+                        iounmap(reg_base);
+                } else {
+                        pr_err("rockchip: could not map timer7 registers\n");
+                }
 
                 /*
                  * Disable auto jtag/sdmmc switching that causes issues
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 09c5fe3d30c2..7e7583ddd607 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1878,7 +1878,7 @@ struct dma_map_ops iommu_coherent_ops = {
  * arm_iommu_attach_device function.
  */
 struct dma_iommu_mapping *
-arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, size_t size)
+arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, u64 size)
 {
         unsigned int bits = size >> PAGE_SHIFT;
         unsigned int bitmap_size = BITS_TO_LONGS(bits) * sizeof(long);
@@ -1886,6 +1886,10 @@ arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, size_t size)
         int extensions = 1;
         int err = -ENOMEM;
 
+        /* currently only 32-bit DMA address space is supported */
+        if (size > DMA_BIT_MASK(32) + 1)
+                return ERR_PTR(-ERANGE);
+
         if (!bitmap_size)
                 return ERR_PTR(-EINVAL);
 
@@ -2057,13 +2061,6 @@ static bool arm_setup_iommu_dma_ops(struct device *dev, u64 dma_base, u64 size,
         if (!iommu)
                 return false;
 
-        /*
-         * currently arm_iommu_create_mapping() takes a max of size_t
-         * for size param. So check this limit for now.
-         */
-        if (size > SIZE_MAX)
-                return false;
-
         mapping = arm_iommu_create_mapping(dev->bus, dma_base, size);
         if (IS_ERR(mapping)) {
                 pr_warn("Failed to create %llu-byte IOMMU mapping for device %s\n",
diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index aa0519eed698..774ef1323554 100644
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -22,8 +22,6 @@
  *
  * These are the low level assembler for performing cache and TLB
  * functions on the arm1020.
- *
- *  CONFIG_CPU_ARM1020_CPU_IDLE -> nohlt
  */
 #include <linux/linkage.h>
 #include <linux/init.h>
diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S
index bff4c7f70fd6..ae3c27b71594 100644
--- a/arch/arm/mm/proc-arm1020e.S
+++ b/arch/arm/mm/proc-arm1020e.S
@@ -22,8 +22,6 @@
  *
  * These are the low level assembler for performing cache and TLB
  * functions on the arm1020e.
- *
- *  CONFIG_CPU_ARM1020_CPU_IDLE -> nohlt
  */
 #include <linux/linkage.h>
 #include <linux/init.h>
diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S
index ede8c54ab4aa..32a47cc19076 100644
--- a/arch/arm/mm/proc-arm925.S
+++ b/arch/arm/mm/proc-arm925.S
@@ -441,9 +441,6 @@ ENTRY(cpu_arm925_set_pte_ext)
         .type   __arm925_setup, #function
 __arm925_setup:
         mov     r0, #0
-#if defined(CONFIG_CPU_ICACHE_STREAMING_DISABLE)
-        orr     r0,r0,#1 << 7
-#endif
 
         /* Transparent on, D-cache clean & flush mode. See  NOTE2 above */
         orr     r0,r0,#1 << 1                   @ transparent mode on
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index e494d6d6acbe..92e08bf37aad 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -602,7 +602,6 @@ __\name\()_proc_info:
                 PMD_SECT_AP_WRITE | \
                 PMD_SECT_AP_READ
         initfn  __feroceon_setup, __\name\()_proc_info
-        .long __feroceon_setup
         .long   cpu_arch_name
         .long   cpu_elf_name
         .long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index 793551d15f1d..498325074a06 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -4,6 +4,7 @@
 #include <linux/gfp.h>
 #include <linux/highmem.h>
 #include <linux/export.h>
+#include <linux/memblock.h>
 #include <linux/of_address.h>
 #include <linux/slab.h>
 #include <linux/types.h>
@@ -21,6 +22,20 @@
 #include <asm/xen/hypercall.h>
 #include <asm/xen/interface.h>
 
+unsigned long xen_get_swiotlb_free_pages(unsigned int order)
+{
+        struct memblock_region *reg;
+        gfp_t flags = __GFP_NOWARN;
+
+        for_each_memblock(memory, reg) {
+                if (reg->base < (phys_addr_t)0xffffffff) {
+                        flags |= __GFP_DMA;
+                        break;
+                }
+        }
+        return __get_free_pages(flags, order);
+}
+
 enum dma_cache_op {
        DMA_UNMAP,
        DMA_MAP,
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 4269dba63cf1..7796af4b1d6f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -31,6 +31,7 @@ config ARM64
         select GENERIC_EARLY_IOREMAP
         select GENERIC_IRQ_PROBE
         select GENERIC_IRQ_SHOW
+        select GENERIC_IRQ_SHOW_LEVEL
         select GENERIC_PCI_IOMAP
         select GENERIC_SCHED_CLOCK
         select GENERIC_SMP_IDLE_THREAD
diff --git a/arch/arm64/crypto/crc32-arm64.c b/arch/arm64/crypto/crc32-arm64.c
index 9499199924ae..6a37c3c6b11d 100644
--- a/arch/arm64/crypto/crc32-arm64.c
+++ b/arch/arm64/crypto/crc32-arm64.c
@@ -147,13 +147,21 @@ static int chksum_final(struct shash_desc *desc, u8 *out)
 {
         struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
 
+        put_unaligned_le32(ctx->crc, out);
+        return 0;
+}
+
+static int chksumc_final(struct shash_desc *desc, u8 *out)
+{
+        struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
         put_unaligned_le32(~ctx->crc, out);
         return 0;
 }
 
 static int __chksum_finup(u32 crc, const u8 *data, unsigned int len, u8 *out)
 {
-        put_unaligned_le32(~crc32_arm64_le_hw(crc, data, len), out);
+        put_unaligned_le32(crc32_arm64_le_hw(crc, data, len), out);
         return 0;
 }
 
@@ -199,6 +207,14 @@ static int crc32_cra_init(struct crypto_tfm *tfm)
 {
         struct chksum_ctx *mctx = crypto_tfm_ctx(tfm);
 
+        mctx->key = 0;
+        return 0;
+}
+
+static int crc32c_cra_init(struct crypto_tfm *tfm)
+{
+        struct chksum_ctx *mctx = crypto_tfm_ctx(tfm);
+
         mctx->key = ~0;
         return 0;
 }
@@ -229,7 +245,7 @@ static struct shash_alg crc32c_alg = {
         .setkey                 =       chksum_setkey,
         .init                   =       chksum_init,
         .update                 =       chksumc_update,
-        .final                  =       chksum_final,
+        .final                  =       chksumc_final,
         .finup                  =       chksumc_finup,
         .digest                 =       chksumc_digest,
         .descsize               =       sizeof(struct chksum_desc_ctx),
@@ -241,7 +257,7 @@ static struct shash_alg crc32c_alg = {
                 .cra_alignmask          =       0,
                 .cra_ctxsize            =       sizeof(struct chksum_ctx),
                 .cra_module             =       THIS_MODULE,
-                .cra_init               =       crc32_cra_init,
+                .cra_init               =       crc32c_cra_init,
         }
 };
 
diff --git a/arch/arm64/crypto/sha1-ce-glue.c b/arch/arm64/crypto/sha1-ce-glue.c
index 114e7cc5de8c..aefda9868627 100644
--- a/arch/arm64/crypto/sha1-ce-glue.c
+++ b/arch/arm64/crypto/sha1-ce-glue.c
@@ -74,6 +74,9 @@ static int sha1_ce_finup(struct shash_desc *desc, const u8 *data,
 
 static int sha1_ce_final(struct shash_desc *desc, u8 *out)
 {
+        struct sha1_ce_state *sctx = shash_desc_ctx(desc);
+
+        sctx->finalize = 0;
         kernel_neon_begin_partial(16);
         sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_ce_transform);
         kernel_neon_end();
diff --git a/arch/arm64/crypto/sha2-ce-glue.c b/arch/arm64/crypto/sha2-ce-glue.c
index 1340e44c048b..7cd587564a41 100644
--- a/arch/arm64/crypto/sha2-ce-glue.c
+++ b/arch/arm64/crypto/sha2-ce-glue.c
@@ -75,6 +75,9 @@ static int sha256_ce_finup(struct shash_desc *desc, const u8 *data,
 
 static int sha256_ce_final(struct shash_desc *desc, u8 *out)
 {
+        struct sha256_ce_state *sctx = shash_desc_ctx(desc);
+
+        sctx->finalize = 0;
         kernel_neon_begin_partial(28);
         sha256_base_do_finalize(desc, (sha256_block_fn *)sha2_ce_transform);
         kernel_neon_end();
diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h
index a5abb0062d6e..71f19c4dc0de 100644
--- a/arch/arm64/include/asm/barrier.h
+++ b/arch/arm64/include/asm/barrier.h
@@ -65,6 +65,14 @@ do {									\
 do {                                                                    \
         compiletime_assert_atomic_type(*p);                             \
         switch (sizeof(*p)) {                                           \
+        case 1:                                                         \
+                asm volatile ("stlrb %w1, %0"                           \
+                                : "=Q" (*p) : "r" (v) : "memory");      \
+                break;                                                  \
+        case 2:                                                         \
+                asm volatile ("stlrh %w1, %0"                           \
+                                : "=Q" (*p) : "r" (v) : "memory");      \
+                break;                                                  \
         case 4:                                                         \
                 asm volatile ("stlr %w1, %0"                            \
                                 : "=Q" (*p) : "r" (v) : "memory");      \
@@ -81,6 +89,14 @@ do {									\
         typeof(*p) ___p1;                                               \
         compiletime_assert_atomic_type(*p);                             \
         switch (sizeof(*p)) {                                           \
+        case 1:                                                         \
+                asm volatile ("ldarb %w0, %1"                           \
+                        : "=r" (___p1) : "Q" (*p) : "memory");          \
+                break;                                                  \
+        case 2:                                                         \
+                asm volatile ("ldarh %w0, %1"                           \
+                        : "=r" (___p1) : "Q" (*p) : "memory");          \
+                break;                                                  \
         case 4:                                                         \
                 asm volatile ("ldar %w0, %1"                            \
                         : "=r" (___p1) : "Q" (*p) : "memory");          \
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 195991dadc37..23f25acf43a9 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -1310,7 +1310,7 @@ static const struct of_device_id armpmu_of_device_ids[] = {
 
 static int armpmu_device_probe(struct platform_device *pdev)
 {
-        int i, *irqs;
+        int i, irq, *irqs;
 
         if (!cpu_pmu)
                 return -ENODEV;
@@ -1319,6 +1319,11 @@ static int armpmu_device_probe(struct platform_device *pdev)
         if (!irqs)
                 return -ENOMEM;
 
+        /* Don't bother with PPIs; they're already affine */
+        irq = platform_get_irq(pdev, 0);
+        if (irq >= 0 && irq_is_percpu(irq))
+                return 0;
+
         for (i = 0; i < pdev->num_resources; ++i) {
                 struct device_node *dn;
                 int cpu;
@@ -1327,7 +1332,7 @@ static int armpmu_device_probe(struct platform_device *pdev)
                                       i);
                 if (!dn) {
                         pr_warn("Failed to parse %s/interrupt-affinity[%d]\n",
-                                of_node_full_name(dn), i);
+                                of_node_full_name(pdev->dev.of_node), i);
                         break;
                 }
 
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index ef7d112f5ce0..b0bd4e5fd5cf 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -67,8 +67,7 @@ static void *__alloc_from_pool(size_t size, struct page **ret_page, gfp_t flags)
 
                 *ret_page = phys_to_page(phys);
                 ptr = (void *)val;
-                if (flags & __GFP_ZERO)
-                        memset(ptr, 0, size);
+                memset(ptr, 0, size);
         }
 
         return ptr;
@@ -105,7 +104,6 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
                 struct page *page;
                 void *addr;
 
-                size = PAGE_ALIGN(size);
                 page = dma_alloc_from_contiguous(dev, size >> PAGE_SHIFT,
                                                         get_order(size));
                 if (!page)
@@ -113,8 +111,7 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
 
                 *dma_handle = phys_to_dma(dev, page_to_phys(page));
                 addr = page_address(page);
-                if (flags & __GFP_ZERO)
-                        memset(addr, 0, size);
+                memset(addr, 0, size);
                 return addr;
         } else {
                 return swiotlb_alloc_coherent(dev, size, dma_handle, flags);
@@ -195,6 +192,8 @@ static void __dma_free(struct device *dev, size_t size,
 {
         void *swiotlb_addr = phys_to_virt(dma_to_phys(dev, dma_handle));
 
+        size = PAGE_ALIGN(size);
+
         if (!is_device_dma_coherent(dev)) {
                 if (__free_from_pool(vaddr, size))
                         return;
diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
index ce7aea34fdf4..c18ddc74ef9a 100644
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -45,7 +45,7 @@ static volatile unsigned long flushcache_cpumask = 0;
 /*
  * For flush_tlb_others()
  */
-static volatile cpumask_t flush_cpumask;
+static cpumask_t flush_cpumask;
 static struct mm_struct *flush_mm;
 static struct vm_area_struct *flush_vma;
 static volatile unsigned long flush_va;
@@ -415,7 +415,7 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
          */
         send_IPI_mask(&cpumask, INVALIDATE_TLB_IPI, 0);
 
-        while (!cpumask_empty((cpumask_t*)&flush_cpumask)) {
+        while (!cpumask_empty(&flush_cpumask)) {
                 /* nothing. lockup detection does not belong here */
                 mb();
         }
@@ -468,7 +468,7 @@ void smp_invalidate_interrupt(void)
                         __flush_tlb_page(va);
                 }
         }
-        cpumask_clear_cpu(cpu_id, (cpumask_t*)&flush_cpumask);
+        cpumask_clear_cpu(cpu_id, &flush_cpumask);
 }
 
 /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
diff --git a/arch/powerpc/include/uapi/asm/tm.h b/arch/powerpc/include/uapi/asm/tm.h
index 5047659815a5..5d836b7c1176 100644
--- a/arch/powerpc/include/uapi/asm/tm.h
+++ b/arch/powerpc/include/uapi/asm/tm.h
@@ -11,7 +11,7 @@
 #define TM_CAUSE_RESCHED        0xde
 #define TM_CAUSE_TLBI           0xdc
 #define TM_CAUSE_FAC_UNAV       0xda
-#define TM_CAUSE_SYSCALL        0xd8
+#define TM_CAUSE_SYSCALL        0xd8  /* future use */
 #define TM_CAUSE_MISC           0xd6  /* future use */
 #define TM_CAUSE_SIGNAL         0xd4
 #define TM_CAUSE_ALIGNMENT      0xd2
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 44b480e3a5af..9ee61d15653d 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -749,21 +749,24 @@ int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state stat
                 eeh_unfreeze_pe(pe, false);
                 eeh_pe_state_clear(pe, EEH_PE_CFG_BLOCKED);
                 eeh_pe_dev_traverse(pe, eeh_restore_dev_state, dev);
+                eeh_pe_state_clear(pe, EEH_PE_ISOLATED);
                 break;
         case pcie_hot_reset:
+                eeh_pe_state_mark(pe, EEH_PE_ISOLATED);
                 eeh_ops->set_option(pe, EEH_OPT_FREEZE_PE);
                 eeh_pe_dev_traverse(pe, eeh_disable_and_save_dev_state, dev);
                 eeh_pe_state_mark(pe, EEH_PE_CFG_BLOCKED);
                 eeh_ops->reset(pe, EEH_RESET_HOT);
                 break;
         case pcie_warm_reset:
+                eeh_pe_state_mark(pe, EEH_PE_ISOLATED);
                 eeh_ops->set_option(pe, EEH_OPT_FREEZE_PE);
                 eeh_pe_dev_traverse(pe, eeh_disable_and_save_dev_state, dev);
                 eeh_pe_state_mark(pe, EEH_PE_CFG_BLOCKED);
                 eeh_ops->reset(pe, EEH_RESET_FUNDAMENTAL);
                 break;
         default:
-                eeh_pe_state_clear(pe, EEH_PE_CFG_BLOCKED);
+                eeh_pe_state_clear(pe, EEH_PE_ISOLATED | EEH_PE_CFG_BLOCKED);
                 return -EINVAL;
         };
 
@@ -1058,6 +1061,9 @@ void eeh_add_device_early(struct pci_dn *pdn)
         if (!edev || !eeh_enabled())
                 return;
 
+        if (!eeh_has_flag(EEH_PROBE_MODE_DEVTREE))
+                return;
+
         /* USB Bus children of PCI devices will not have BUID's */
         phb = edev->phb;
         if (NULL == phb ||
@@ -1112,6 +1118,9 @@ void eeh_add_device_late(struct pci_dev *dev)
                 return;
         }
 
+        if (eeh_has_flag(EEH_PROBE_MODE_DEV))
+                eeh_ops->probe(pdn, NULL);
+
         /*
          * The EEH cache might not be removed correctly because of
          * unbalanced kref to the device during unplug time, which
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 8ca9434c40e6..afbc20019c2e 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -34,7 +34,6 @@
 #include <asm/ftrace.h>
 #include <asm/hw_irq.h>
 #include <asm/context_tracking.h>
-#include <asm/tm.h>
 
 /*
  * System calls.
@@ -146,24 +145,6 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
         andi.   r11,r10,_TIF_SYSCALL_DOTRACE
         bne     syscall_dotrace
 .Lsyscall_dotrace_cont:
-#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-BEGIN_FTR_SECTION
-        b       1f
-END_FTR_SECTION_IFCLR(CPU_FTR_TM)
-        extrdi. r11, r12, 1, (63-MSR_TS_T_LG) /* transaction active? */
-        beq+    1f
-
-        /* Doom the transaction and don't perform the syscall: */
-        mfmsr   r11
-        li      r12, 1
-        rldimi  r11, r12, MSR_TM_LG, 63-MSR_TM_LG
-        mtmsrd  r11, 0
-        li      r11, (TM_CAUSE_SYSCALL|TM_CAUSE_PERSISTENT)
-        TABORT(R11)
-
-        b       .Lsyscall_exit
-1:
-#endif
         cmpldi  0,r0,NR_syscalls
         bge-    syscall_enosys
 
diff --git a/arch/powerpc/kernel/idle_power7.S b/arch/powerpc/kernel/idle_power7.S
index eeaa0d5f69d5..ccde8f084ce4 100644
--- a/arch/powerpc/kernel/idle_power7.S
+++ b/arch/powerpc/kernel/idle_power7.S
@@ -501,9 +501,11 @@ BEGIN_FTR_SECTION
         CHECK_HMI_INTERRUPT
 END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
         ld      r1,PACAR1(r13)
+        ld      r6,_CCR(r1)
         ld      r4,_MSR(r1)
         ld      r5,_NIP(r1)
         addi    r1,r1,INT_FRAME_SIZE
+        mtcr    r6
         mtspr   SPRN_SRR1,r4
         mtspr   SPRN_SRR0,r5
         rfid
diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c
index 8f3e6cc54d95..c6ca7db64673 100644
--- a/arch/powerpc/kvm/book3s_xics.c
+++ b/arch/powerpc/kvm/book3s_xics.c
@@ -12,6 +12,7 @@
 #include <linux/err.h>
 #include <linux/gfp.h>
 #include <linux/anon_inodes.h>
+#include <linux/spinlock.h>
 
 #include <asm/uaccess.h>
 #include <asm/kvm_book3s.h>
@@ -20,7 +21,6 @@
 #include <asm/xics.h>
 #include <asm/debug.h>
 #include <asm/time.h>
-#include <asm/spinlock.h>
 
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 920c252d1f49..f8bc950efcae 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2693,7 +2693,6 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
                 hose->last_busno = 0xff;
         }
         hose->private_data = phb;
-        hose->controller_ops = pnv_pci_controller_ops;
         phb->hub_id = hub_id;
         phb->opal_id = phb_id;
         phb->type = ioda_type;
@@ -2812,6 +2811,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
         pnv_pci_controller_ops.enable_device_hook = pnv_pci_enable_device_hook;
         pnv_pci_controller_ops.window_alignment = pnv_pci_window_alignment;
         pnv_pci_controller_ops.reset_secondary_bus = pnv_pci_reset_secondary_bus;
+        hose->controller_ops = pnv_pci_controller_ops;
 
 #ifdef CONFIG_PCI_IOV
         ppc_md.pcibios_fixup_sriov = pnv_pci_ioda_fixup_iov_resources;
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index b4b11096ea8b..019d34aaf054 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -412,6 +412,10 @@ static ssize_t dlpar_cpu_probe(const char *buf, size_t count)
         if (rc)
                 return -EINVAL;
 
+        rc = dlpar_acquire_drc(drc_index);
+        if (rc)
+                return -EINVAL;
+
         parent = of_find_node_by_path("/cpus");
         if (!parent)
                 return -ENODEV;
@@ -422,12 +426,6 @@ static ssize_t dlpar_cpu_probe(const char *buf, size_t count)
 
         of_node_put(parent);
 
-        rc = dlpar_acquire_drc(drc_index);
-        if (rc) {
-                dlpar_free_cc_nodes(dn);
-                return -EINVAL;
-        }
-
         rc = dlpar_attach_node(dn);
         if (rc) {
                 dlpar_release_drc(drc_index);
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 8e58c614c37d..b06dc3839268 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -115,7 +115,7 @@ config S390
         select HAVE_ARCH_SECCOMP_FILTER
         select HAVE_ARCH_TRACEHOOK
         select HAVE_ARCH_TRANSPARENT_HUGEPAGE
-        select HAVE_BPF_JIT if PACK_STACK && HAVE_MARCH_Z9_109_FEATURES
+        select HAVE_BPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
         select HAVE_CMPXCHG_DOUBLE
         select HAVE_CMPXCHG_LOCAL
         select HAVE_DEBUG_KMEMLEAK
diff --git a/arch/s390/crypto/crypt_s390.h b/arch/s390/crypto/crypt_s390.h
index ba3b2aefddf5..d9c4c313fbc6 100644
--- a/arch/s390/crypto/crypt_s390.h
+++ b/arch/s390/crypto/crypt_s390.h
@@ -3,9 +3,10 @@
  *
  * Support for s390 cryptographic instructions.
  *
- *   Copyright IBM Corp. 2003, 2007
+ *   Copyright IBM Corp. 2003, 2015
  *   Author(s): Thomas Spatzier
  *              Jan Glauber (jan.glauber@de.ibm.com)
+ *              Harald Freudenberger (freude@de.ibm.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
@@ -28,15 +29,17 @@
 #define CRYPT_S390_MSA  0x1
 #define CRYPT_S390_MSA3 0x2
 #define CRYPT_S390_MSA4 0x4
+#define CRYPT_S390_MSA5 0x8
 
 /* s390 cryptographic operations */
 enum crypt_s390_operations {
-        CRYPT_S390_KM   = 0x0100,
-        CRYPT_S390_KMC  = 0x0200,
-        CRYPT_S390_KIMD = 0x0300,
-        CRYPT_S390_KLMD = 0x0400,
-        CRYPT_S390_KMAC = 0x0500,
-        CRYPT_S390_KMCTR = 0x0600
+        CRYPT_S390_KM    = 0x0100,
+        CRYPT_S390_KMC   = 0x0200,
+        CRYPT_S390_KIMD  = 0x0300,
+        CRYPT_S390_KLMD  = 0x0400,
+        CRYPT_S390_KMAC  = 0x0500,
+        CRYPT_S390_KMCTR = 0x0600,
+        CRYPT_S390_PPNO  = 0x0700
 };
 
 /*
@@ -138,6 +141,16 @@ enum crypt_s390_kmac_func {
         KMAC_TDEA_192 = CRYPT_S390_KMAC | 3
 };
 
+/*
+ * function codes for PPNO (PERFORM PSEUDORANDOM NUMBER
+ * OPERATION) instruction
+ */
+enum crypt_s390_ppno_func {
+        PPNO_QUERY            = CRYPT_S390_PPNO | 0,
+        PPNO_SHA512_DRNG_GEN  = CRYPT_S390_PPNO | 3,
+        PPNO_SHA512_DRNG_SEED = CRYPT_S390_PPNO | 0x83
+};
+
 /**
  * crypt_s390_km:
  * @func: the function code passed to KM; see crypt_s390_km_func
@@ -162,11 +175,11 @@ static inline int crypt_s390_km(long func, void *param,
         int ret;
 
         asm volatile(
-                "0:     .insn   rre,0xb92e0000,%3,%1 \n" /* KM opcode */
-                "1:     brc     1,0b \n" /* handle partial completion */
+                "0:     .insn   rre,0xb92e0000,%3,%1\n" /* KM opcode */
+                "1:     brc     1,0b\n" /* handle partial completion */
                 "       la      %0,0\n"
                 "2:\n"
-                EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+                EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
                 : "=d" (ret), "+a" (__src), "+d" (__src_len), "+a" (__dest)
                 : "d" (__func), "a" (__param), "0" (-1) : "cc", "memory");
         if (ret < 0)
@@ -198,11 +211,11 @@ static inline int crypt_s390_kmc(long func, void *param,
         int ret;
 
         asm volatile(
-                "0:     .insn   rre,0xb92f0000,%3,%1 \n" /* KMC opcode */
-                "1:     brc     1,0b \n" /* handle partial completion */
+                "0:     .insn   rre,0xb92f0000,%3,%1\n" /* KMC opcode */
+                "1:     brc     1,0b\n" /* handle partial completion */
                 "       la      %0,0\n"
                 "2:\n"
-                EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+                EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
                 : "=d" (ret), "+a" (__src), "+d" (__src_len), "+a" (__dest)
                 : "d" (__func), "a" (__param), "0" (-1) : "cc", "memory");
         if (ret < 0)
@@ -233,11 +246,11 @@ static inline int crypt_s390_kimd(long func, void *param,
         int ret;
 
         asm volatile(
-                "0:     .insn   rre,0xb93e0000,%1,%1 \n" /* KIMD opcode */
-                "1:     brc     1,0b \n" /* handle partial completion */
+                "0:     .insn   rre,0xb93e0000,%1,%1\n" /* KIMD opcode */
+                "1:     brc     1,0b\n" /* handle partial completion */
                 "       la      %0,0\n"
                 "2:\n"
-                EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+                EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
                 : "=d" (ret), "+a" (__src), "+d" (__src_len)
                 : "d" (__func), "a" (__param), "0" (-1) : "cc", "memory");
         if (ret < 0)
@@ -267,11 +280,11 @@ static inline int crypt_s390_klmd(long func, void *param,
         int ret;
 
         asm volatile(
-                "0:     .insn   rre,0xb93f0000,%1,%1 \n" /* KLMD opcode */
-                "1:     brc     1,0b \n" /* handle partial completion */
+                "0:     .insn   rre,0xb93f0000,%1,%1\n" /* KLMD opcode */
+                "1:     brc     1,0b\n" /* handle partial completion */
                 "       la      %0,0\n"
                 "2:\n"
-                EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+                EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
                 : "=d" (ret), "+a" (__src), "+d" (__src_len)
                 : "d" (__func), "a" (__param), "0" (-1) : "cc", "memory");
         if (ret < 0)
@@ -302,11 +315,11 @@ static inline int crypt_s390_kmac(long func, void *param,
         int ret;
 
         asm volatile(
-                "0:     .insn   rre,0xb91e0000,%1,%1 \n" /* KLAC opcode */
-                "1:     brc     1,0b \n" /* handle partial completion */
+                "0:     .insn   rre,0xb91e0000,%1,%1\n" /* KLAC opcode */
+                "1:     brc     1,0b\n" /* handle partial completion */
                 "       la      %0,0\n"
                 "2:\n"
-                EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+                EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
                 : "=d" (ret), "+a" (__src), "+d" (__src_len)
                 : "d" (__func), "a" (__param), "0" (-1) : "cc", "memory");
         if (ret < 0)
@@ -340,11 +353,11 @@ static inline int crypt_s390_kmctr(long func, void *param, u8 *dest,
         int ret = -1;
 
         asm volatile(
-                "0:     .insn   rrf,0xb92d0000,%3,%1,%4,0 \n" /* KMCTR opcode */
-                "1:     brc     1,0b \n" /* handle partial completion */
+                "0:     .insn   rrf,0xb92d0000,%3,%1,%4,0\n" /* KMCTR opcode */
+                "1:     brc     1,0b\n" /* handle partial completion */
                 "       la      %0,0\n"
                 "2:\n"
-                EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+                EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
                 : "+d" (ret), "+a" (__src), "+d" (__src_len), "+a" (__dest),
                   "+a" (__ctr)
                 : "d" (__func), "a" (__param) : "cc", "memory");
@@ -354,6 +367,47 @@ static inline int crypt_s390_kmctr(long func, void *param, u8 *dest,
 }
 
 /**
+ * crypt_s390_ppno:
+ * @func: the function code passed to PPNO; see crypt_s390_ppno_func
+ * @param: address of parameter block; see POP for details on each func
+ * @dest: address of destination memory area
+ * @dest_len: size of destination memory area in bytes
+ * @seed: address of seed data
+ * @seed_len: size of seed data in bytes
+ *
+ * Executes the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION)
+ * operation of the CPU.
+ *
+ * Returns -1 for failure, 0 for the query func, number of random
+ * bytes stored in dest buffer for generate function
+ */
+static inline int crypt_s390_ppno(long func, void *param,
+                                  u8 *dest, long dest_len,
+                                  const u8 *seed, long seed_len)
+{
+        register long  __func     asm("0") = func & CRYPT_S390_FUNC_MASK;
+        register void *__param    asm("1") = param;    /* param block (240 bytes) */
+        register u8   *__dest     asm("2") = dest;     /* buf for recv random bytes */
+        register long  __dest_len asm("3") = dest_len; /* requested random bytes */
+        register const u8 *__seed asm("4") = seed;     /* buf with seed data */
+        register long  __seed_len asm("5") = seed_len; /* bytes in seed buf */
+        int ret = -1;
+
+        asm volatile (
+                "0:     .insn   rre,0xb93c0000,%1,%5\n" /* PPNO opcode */
+                "1:     brc     1,0b\n"   /* handle partial completion */
+                "       la      %0,0\n"
+                "2:\n"
+                EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
+                : "+d" (ret), "+a"(__dest), "+d"(__dest_len)
+                : "d"(__func), "a"(__param), "a"(__seed), "d"(__seed_len)
+                : "cc", "memory");
+        if (ret < 0)
+                return ret;
+        return (func & CRYPT_S390_FUNC_MASK) ? dest_len - __dest_len : 0;
+}
+
+/**
  * crypt_s390_func_available:
  * @func: the function code of the specific function; 0 if op in general
  *
@@ -373,6 +427,9 @@ static inline int crypt_s390_func_available(int func,
                 return 0;
         if (facility_mask & CRYPT_S390_MSA4 && !test_facility(77))
                 return 0;
+        if (facility_mask & CRYPT_S390_MSA5 && !test_facility(57))
+                return 0;
+
         switch (func & CRYPT_S390_OP_MASK) {
         case CRYPT_S390_KM:
                 ret = crypt_s390_km(KM_QUERY, &status, NULL, NULL, 0);
@@ -390,8 +447,12 @@ static inline int crypt_s390_func_available(int func,
                 ret = crypt_s390_kmac(KMAC_QUERY, &status, NULL, 0);
                 break;
         case CRYPT_S390_KMCTR:
-                ret = crypt_s390_kmctr(KMCTR_QUERY, &status, NULL, NULL, 0,
-                                       NULL);
+                ret = crypt_s390_kmctr(KMCTR_QUERY, &status,
+                                       NULL, NULL, 0, NULL);
+                break;
+        case CRYPT_S390_PPNO:
+                ret = crypt_s390_ppno(PPNO_QUERY, &status,
+                                      NULL, 0, NULL, 0);
                 break;
         default:
                 return 0;
@@ -419,15 +480,14 @@ static inline int crypt_s390_pcc(long func, void *param)
         int ret = -1;
 
         asm volatile(
-                "0:     .insn   rre,0xb92c0000,0,0 \n" /* PCC opcode */
-                "1:     brc     1,0b \n" /* handle partial completion */
+                "0:     .insn   rre,0xb92c0000,0,0\n" /* PCC opcode */
+                "1:     brc     1,0b\n" /* handle partial completion */
                 "       la      %0,0\n"
                 "2:\n"
-                EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+                EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
                 : "+d" (ret)
                 : "d" (__func), "a" (__param) : "cc", "memory");
         return ret;
 }
 
-
 #endif  /* _CRYPTO_ARCH_S390_CRYPT_S390_H */
diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
index 94a35a4c1b48..1f374b39a4ec 100644
--- a/arch/s390/crypto/prng.c
+++ b/arch/s390/crypto/prng.c
@@ -1,106 +1,529 @@
 /*
- * Copyright IBM Corp. 2006, 2007
+ * Copyright IBM Corp. 2006, 2015
  * Author(s): Jan Glauber <jan.glauber@de.ibm.com>
+ *            Harald Freudenberger <freude@de.ibm.com>
  * Driver for the s390 pseudo random number generator
  */
+
+#define KMSG_COMPONENT "prng"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/fs.h>
+#include <linux/fips.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/device.h>
 #include <linux/miscdevice.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/mutex.h>
 #include <linux/random.h>
 #include <linux/slab.h>
 #include <asm/debug.h>
 #include <asm/uaccess.h>
+#include <asm/timex.h>
 
 #include "crypt_s390.h"
 
 MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jan Glauber <jan.glauber@de.ibm.com>");
+MODULE_AUTHOR("IBM Corporation");
 MODULE_DESCRIPTION("s390 PRNG interface");
 
-static int prng_chunk_size = 256;
-module_param(prng_chunk_size, int, S_IRUSR | S_IRGRP | S_IROTH);
+
+#define PRNG_MODE_AUTO    0
+#define PRNG_MODE_TDES    1
+#define PRNG_MODE_SHA512  2
+
+static unsigned int prng_mode = PRNG_MODE_AUTO;
+module_param_named(mode, prng_mode, int, 0);
+MODULE_PARM_DESC(prng_mode, "PRNG mode: 0 - auto, 1 - TDES, 2 - SHA512");
+
+
+#define PRNG_CHUNKSIZE_TDES_MIN   8
+#define PRNG_CHUNKSIZE_TDES_MAX   (64*1024)
+#define PRNG_CHUNKSIZE_SHA512_MIN 64
+#define PRNG_CHUNKSIZE_SHA512_MAX (64*1024)
+
+static unsigned int prng_chunk_size = 256;
+module_param_named(chunksize, prng_chunk_size, int, 0);
 MODULE_PARM_DESC(prng_chunk_size, "PRNG read chunk size in bytes");
 
-static int prng_entropy_limit = 4096;
-module_param(prng_entropy_limit, int, S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR);
-MODULE_PARM_DESC(prng_entropy_limit,
-        "PRNG add entropy after that much bytes were produced");
+
+#define PRNG_RESEED_LIMIT_TDES           4096
+#define PRNG_RESEED_LIMIT_TDES_LOWER     4096
+#define PRNG_RESEED_LIMIT_SHA512       100000
+#define PRNG_RESEED_LIMIT_SHA512_LOWER  10000
+
+static unsigned int prng_reseed_limit;
+module_param_named(reseed_limit, prng_reseed_limit, int, 0);
+MODULE_PARM_DESC(prng_reseed_limit, "PRNG reseed limit");
+
 
 /*
  * Any one who considers arithmetical methods of producing random digits is,
  * of course, in a state of sin. -- John von Neumann
  */
 
-struct s390_prng_data {
-        unsigned long count; /* how many bytes were produced */
-        char *buf;
+static int prng_errorflag;
+
+#define PRNG_GEN_ENTROPY_FAILED  1
+#define PRNG_SELFTEST_FAILED     2
+#define PRNG_INSTANTIATE_FAILED  3
+#define PRNG_SEED_FAILED         4
+#define PRNG_RESEED_FAILED       5
+#define PRNG_GEN_FAILED          6
+
+struct prng_ws_s {
+        u8  parm_block[32];
+        u32 reseed_counter;
+        u64 byte_counter;
 };
 
-static struct s390_prng_data *p;
+struct ppno_ws_s {
+        u32 res;
+        u32 reseed_counter;
+        u64 stream_bytes;
+        u8  V[112];
+        u8  C[112];
+};
 
-/* copied from libica, use a non-zero initial parameter block */
-static unsigned char parm_block[32] = {
-0x0F,0x2B,0x8E,0x63,0x8C,0x8E,0xD2,0x52,0x64,0xB7,0xA0,0x7B,0x75,0x28,0xB8,0xF4,
-0x75,0x5F,0xD2,0xA6,0x8D,0x97,0x11,0xFF,0x49,0xD8,0x23,0xF3,0x7E,0x21,0xEC,0xA0,
+struct prng_data_s {
+        struct mutex mutex;
+        union {
+                struct prng_ws_s prngws;
+                struct ppno_ws_s ppnows;
+        };
+        u8 *buf;
+        u32 rest;
+        u8 *prev;
 };
 
-static int prng_open(struct inode *inode, struct file *file)
+static struct prng_data_s *prng_data;
+
+/* initial parameter block for tdes mode, copied from libica */
+static const u8 initial_parm_block[32] __initconst = {
+        0x0F, 0x2B, 0x8E, 0x63, 0x8C, 0x8E, 0xD2, 0x52,
+        0x64, 0xB7, 0xA0, 0x7B, 0x75, 0x28, 0xB8, 0xF4,
+        0x75, 0x5F, 0xD2, 0xA6, 0x8D, 0x97, 0x11, 0xFF,
+        0x49, 0xD8, 0x23, 0xF3, 0x7E, 0x21, 0xEC, 0xA0 };
+
+
+/*** helper functions ***/
+
+static int generate_entropy(u8 *ebuf, size_t nbytes)
 {
-        return nonseekable_open(inode, file);
+        int n, ret = 0;
+        u8 *pg, *h, hash[32];
+
+        pg = (u8 *) __get_free_page(GFP_KERNEL);
+        if (!pg) {
+                prng_errorflag = PRNG_GEN_ENTROPY_FAILED;
+                return -ENOMEM;
+        }
+
+        while (nbytes) {
+                /* fill page with urandom bytes */
+                get_random_bytes(pg, PAGE_SIZE);
+                /* exor page with stckf values */
+                for (n = 0; n < sizeof(PAGE_SIZE/sizeof(u64)); n++) {
+                        u64 *p = ((u64 *)pg) + n;
+                        *p ^= get_tod_clock_fast();
+                }
+                n = (nbytes < sizeof(hash)) ? nbytes : sizeof(hash);
+                if (n < sizeof(hash))
+                        h = hash;
+                else
+                        h = ebuf;
+                /* generate sha256 from this page */
+                if (crypt_s390_kimd(KIMD_SHA_256, h,
+                                    pg, PAGE_SIZE) != PAGE_SIZE) {
+                        prng_errorflag = PRNG_GEN_ENTROPY_FAILED;
+                        ret = -EIO;
+                        goto out;
+                }
+                if (n < sizeof(hash))
+                        memcpy(ebuf, hash, n);
+                ret += n;
+                ebuf += n;
+                nbytes -= n;
+        }
+
+out:
+        free_page((unsigned long)pg);
+        return ret;
 }
 
-static void prng_add_entropy(void)
+
+/*** tdes functions ***/
+
+static void prng_tdes_add_entropy(void)
 {
         __u64 entropy[4];
         unsigned int i;
         int ret;
 
         for (i = 0; i < 16; i++) {
-                ret = crypt_s390_kmc(KMC_PRNG, parm_block, (char *)entropy,
-                                     (char *)entropy, sizeof(entropy));
+                ret = crypt_s390_kmc(KMC_PRNG, prng_data->prngws.parm_block,
+                                     (char *)entropy, (char *)entropy,
+                                     sizeof(entropy));
                 BUG_ON(ret < 0 || ret != sizeof(entropy));
-                memcpy(parm_block, entropy, sizeof(entropy));
+                memcpy(prng_data->prngws.parm_block, entropy, sizeof(entropy));
         }
 }
 
-static void prng_seed(int nbytes)
+
+static void prng_tdes_seed(int nbytes)
 {
         char buf[16];
         int i = 0;
 
-        BUG_ON(nbytes > 16);
+        BUG_ON(nbytes > sizeof(buf));
+
         get_random_bytes(buf, nbytes);
 
         /* Add the entropy */
         while (nbytes >= 8) {
-                *((__u64 *)parm_block) ^= *((__u64 *)(buf+i));
-                prng_add_entropy();
+                *((__u64 *)prng_data->prngws.parm_block) ^= *((__u64 *)(buf+i));
+                prng_tdes_add_entropy();
                 i += 8;
                 nbytes -= 8;
         }
-        prng_add_entropy();
+        prng_tdes_add_entropy();
+        prng_data->prngws.reseed_counter = 0;
+}
+
+
+static int __init prng_tdes_instantiate(void)
+{
+        int datalen;
+
+        pr_debug("prng runs in TDES mode with "
+                 "chunksize=%d and reseed_limit=%u\n",
+                 prng_chunk_size, prng_reseed_limit);
+
+        /* memory allocation, prng_data struct init, mutex init */
+        datalen = sizeof(struct prng_data_s) + prng_chunk_size;
+        prng_data = kzalloc(datalen, GFP_KERNEL);
+        if (!prng_data) {
+                prng_errorflag = PRNG_INSTANTIATE_FAILED;
+                return -ENOMEM;
+        }
+        mutex_init(&prng_data->mutex);
+        prng_data->buf = ((u8 *)prng_data) + sizeof(struct prng_data_s);
+        memcpy(prng_data->prngws.parm_block, initial_parm_block, 32);
+
+        /* initialize the PRNG, add 128 bits of entropy */
+        prng_tdes_seed(16);
+
+        return 0;
 }
 
-static ssize_t prng_read(struct file *file, char __user *ubuf, size_t nbytes,
-                         loff_t *ppos)
+
+static void prng_tdes_deinstantiate(void)
+{
+        pr_debug("The prng module stopped "
+                 "after running in triple DES mode\n");
+        kzfree(prng_data);
+}
+
+
+/*** sha512 functions ***/
+
+static int __init prng_sha512_selftest(void)
 {
-        int chunk, n;
+        /* NIST DRBG testvector for Hash Drbg, Sha-512, Count #0 */
+        static const u8 seed[] __initconst = {
+                0x6b, 0x50, 0xa7, 0xd8, 0xf8, 0xa5, 0x5d, 0x7a,
+                0x3d, 0xf8, 0xbb, 0x40, 0xbc, 0xc3, 0xb7, 0x22,
+                0xd8, 0x70, 0x8d, 0xe6, 0x7f, 0xda, 0x01, 0x0b,
+                0x03, 0xc4, 0xc8, 0x4d, 0x72, 0x09, 0x6f, 0x8c,
+                0x3e, 0xc6, 0x49, 0xcc, 0x62, 0x56, 0xd9, 0xfa,
+                0x31, 0xdb, 0x7a, 0x29, 0x04, 0xaa, 0xf0, 0x25 };
+        static const u8 V0[] __initconst = {
+                0x00, 0xad, 0xe3, 0x6f, 0x9a, 0x01, 0xc7, 0x76,
+                0x61, 0x34, 0x35, 0xf5, 0x4e, 0x24, 0x74, 0x22,
+                0x21, 0x9a, 0x29, 0x89, 0xc7, 0x93, 0x2e, 0x60,
+                0x1e, 0xe8, 0x14, 0x24, 0x8d, 0xd5, 0x03, 0xf1,
+                0x65, 0x5d, 0x08, 0x22, 0x72, 0xd5, 0xad, 0x95,
+                0xe1, 0x23, 0x1e, 0x8a, 0xa7, 0x13, 0xd9, 0x2b,
+                0x5e, 0xbc, 0xbb, 0x80, 0xab, 0x8d, 0xe5, 0x79,
+                0xab, 0x5b, 0x47, 0x4e, 0xdd, 0xee, 0x6b, 0x03,
+                0x8f, 0x0f, 0x5c, 0x5e, 0xa9, 0x1a, 0x83, 0xdd,
+                0xd3, 0x88, 0xb2, 0x75, 0x4b, 0xce, 0x83, 0x36,
+                0x57, 0x4b, 0xf1, 0x5c, 0xca, 0x7e, 0x09, 0xc0,
+                0xd3, 0x89, 0xc6, 0xe0, 0xda, 0xc4, 0x81, 0x7e,
+                0x5b, 0xf9, 0xe1, 0x01, 0xc1, 0x92, 0x05, 0xea,
+                0xf5, 0x2f, 0xc6, 0xc6, 0xc7, 0x8f, 0xbc, 0xf4 };
+        static const u8 C0[] __initconst = {
+                0x00, 0xf4, 0xa3, 0xe5, 0xa0, 0x72, 0x63, 0x95,
+                0xc6, 0x4f, 0x48, 0xd0, 0x8b, 0x5b, 0x5f, 0x8e,
+                0x6b, 0x96, 0x1f, 0x16, 0xed, 0xbc, 0x66, 0x94,
+                0x45, 0x31, 0xd7, 0x47, 0x73, 0x22, 0xa5, 0x86,
+                0xce, 0xc0, 0x4c, 0xac, 0x63, 0xb8, 0x39, 0x50,
+                0xbf, 0xe6, 0x59, 0x6c, 0x38, 0x58, 0x99, 0x1f,
+                0x27, 0xa7, 0x9d, 0x71, 0x2a, 0xb3, 0x7b, 0xf9,
+                0xfb, 0x17, 0x86, 0xaa, 0x99, 0x81, 0xaa, 0x43,
+                0xe4, 0x37, 0xd3, 0x1e, 0x6e, 0xe5, 0xe6, 0xee,
+                0xc2, 0xed, 0x95, 0x4f, 0x53, 0x0e, 0x46, 0x8a,
+                0xcc, 0x45, 0xa5, 0xdb, 0x69, 0x0d, 0x81, 0xc9,
+                0x32, 0x92, 0xbc, 0x8f, 0x33, 0xe6, 0xf6, 0x09,
+                0x7c, 0x8e, 0x05, 0x19, 0x0d, 0xf1, 0xb6, 0xcc,
+                0xf3, 0x02, 0x21, 0x90, 0x25, 0xec, 0xed, 0x0e };
+        static const u8 random[] __initconst = {
+                0x95, 0xb7, 0xf1, 0x7e, 0x98, 0x02, 0xd3, 0x57,
+                0x73, 0x92, 0xc6, 0xa9, 0xc0, 0x80, 0x83, 0xb6,
+                0x7d, 0xd1, 0x29, 0x22, 0x65, 0xb5, 0xf4, 0x2d,
+                0x23, 0x7f, 0x1c, 0x55, 0xbb, 0x9b, 0x10, 0xbf,
+                0xcf, 0xd8, 0x2c, 0x77, 0xa3, 0x78, 0xb8, 0x26,
+                0x6a, 0x00, 0x99, 0x14, 0x3b, 0x3c, 0x2d, 0x64,
+                0x61, 0x1e, 0xee, 0xb6, 0x9a, 0xcd, 0xc0, 0x55,
+                0x95, 0x7c, 0x13, 0x9e, 0x8b, 0x19, 0x0c, 0x7a,
+                0x06, 0x95, 0x5f, 0x2c, 0x79, 0x7c, 0x27, 0x78,
+                0xde, 0x94, 0x03, 0x96, 0xa5, 0x01, 0xf4, 0x0e,
+                0x91, 0x39, 0x6a, 0xcf, 0x8d, 0x7e, 0x45, 0xeb,
+                0xdb, 0xb5, 0x3b, 0xbf, 0x8c, 0x97, 0x52, 0x30,
+                0xd2, 0xf0, 0xff, 0x91, 0x06, 0xc7, 0x61, 0x19,
+                0xae, 0x49, 0x8e, 0x7f, 0xbc, 0x03, 0xd9, 0x0f,
+                0x8e, 0x4c, 0x51, 0x62, 0x7a, 0xed, 0x5c, 0x8d,
+                0x42, 0x63, 0xd5, 0xd2, 0xb9, 0x78, 0x87, 0x3a,
+                0x0d, 0xe5, 0x96, 0xee, 0x6d, 0xc7, 0xf7, 0xc2,
+                0x9e, 0x37, 0xee, 0xe8, 0xb3, 0x4c, 0x90, 0xdd,
+                0x1c, 0xf6, 0xa9, 0xdd, 0xb2, 0x2b, 0x4c, 0xbd,
+                0x08, 0x6b, 0x14, 0xb3, 0x5d, 0xe9, 0x3d, 0xa2,
+                0xd5, 0xcb, 0x18, 0x06, 0x69, 0x8c, 0xbd, 0x7b,
+                0xbb, 0x67, 0xbf, 0xe3, 0xd3, 0x1f, 0xd2, 0xd1,
+                0xdb, 0xd2, 0xa1, 0xe0, 0x58, 0xa3, 0xeb, 0x99,
+                0xd7, 0xe5, 0x1f, 0x1a, 0x93, 0x8e, 0xed, 0x5e,
+                0x1c, 0x1d, 0xe2, 0x3a, 0x6b, 0x43, 0x45, 0xd3,
+                0x19, 0x14, 0x09, 0xf9, 0x2f, 0x39, 0xb3, 0x67,
+                0x0d, 0x8d, 0xbf, 0xb6, 0x35, 0xd8, 0xe6, 0xa3,
+                0x69, 0x32, 0xd8, 0x10, 0x33, 0xd1, 0x44, 0x8d,
+                0x63, 0xb4, 0x03, 0xdd, 0xf8, 0x8e, 0x12, 0x1b,
+                0x6e, 0x81, 0x9a, 0xc3, 0x81, 0x22, 0x6c, 0x13,
+                0x21, 0xe4, 0xb0, 0x86, 0x44, 0xf6, 0x72, 0x7c,
+                0x36, 0x8c, 0x5a, 0x9f, 0x7a, 0x4b, 0x3e, 0xe2 };
+
         int ret = 0;
-        int tmp;
+        u8 buf[sizeof(random)];
+        struct ppno_ws_s ws;
+
+        memset(&ws, 0, sizeof(ws));
+
+        /* initial seed */
+        ret = crypt_s390_ppno(PPNO_SHA512_DRNG_SEED,
+                              &ws, NULL, 0,
+                              seed, sizeof(seed));
+        if (ret < 0) {
+                pr_err("The prng self test seed operation for the "
+                       "SHA-512 mode failed with rc=%d\n", ret);
+                prng_errorflag = PRNG_SELFTEST_FAILED;
+                return -EIO;
+        }
+
+        /* check working states V and C */
+        if (memcmp(ws.V, V0, sizeof(V0)) != 0
+            || memcmp(ws.C, C0, sizeof(C0)) != 0) {
+                pr_err("The prng self test state test "
+                       "for the SHA-512 mode failed\n");
+                prng_errorflag = PRNG_SELFTEST_FAILED;
+                return -EIO;
+        }
+
+        /* generate random bytes */
+        ret = crypt_s390_ppno(PPNO_SHA512_DRNG_GEN,
+                              &ws, buf, sizeof(buf),
+                              NULL, 0);
+        if (ret < 0) {
+                pr_err("The prng self test generate operation for "
+                       "the SHA-512 mode failed with rc=%d\n", ret);
+                prng_errorflag = PRNG_SELFTEST_FAILED;
+                return -EIO;
+        }
+        ret = crypt_s390_ppno(PPNO_SHA512_DRNG_GEN,
+                              &ws, buf, sizeof(buf),
+                              NULL, 0);
+        if (ret < 0) {
+                pr_err("The prng self test generate operation for "
+                       "the SHA-512 mode failed with rc=%d\n", ret);
+                prng_errorflag = PRNG_SELFTEST_FAILED;
+                return -EIO;
+        }
+
+        /* check against expected data */
+        if (memcmp(buf, random, sizeof(random)) != 0) {
+                pr_err("The prng self test data test "
+                       "for the SHA-512 mode failed\n");
+                prng_errorflag = PRNG_SELFTEST_FAILED;
+                return -EIO;
+        }
+
+        return 0;
+}
+
+
+static int __init prng_sha512_instantiate(void)
+{
+        int ret, datalen;
+        u8 seed[64];
+
+        pr_debug("prng runs in SHA-512 mode "
+                 "with chunksize=%d and reseed_limit=%u\n",
+                 prng_chunk_size, prng_reseed_limit);
+
+        /* memory allocation, prng_data struct init, mutex init */
+        datalen = sizeof(struct prng_data_s) + prng_chunk_size;
+        if (fips_enabled)
+                datalen += prng_chunk_size;
+        prng_data = kzalloc(datalen, GFP_KERNEL);
+        if (!prng_data) {
+                prng_errorflag = PRNG_INSTANTIATE_FAILED;
+                return -ENOMEM;
+        }
+        mutex_init(&prng_data->mutex);
+        prng_data->buf = ((u8 *)prng_data) + sizeof(struct prng_data_s);
+
+        /* selftest */
+        ret = prng_sha512_selftest();
+        if (ret)
+                goto outfree;
+
+        /* generate initial seed bytestring, first 48 bytes of entropy */
+        ret = generate_entropy(seed, 48);
+        if (ret != 48)
+                goto outfree;
+        /* followed by 16 bytes of unique nonce */
+        get_tod_clock_ext(seed + 48);
+
+        /* initial seed of the ppno drng */
+        ret = crypt_s390_ppno(PPNO_SHA512_DRNG_SEED,
+                              &prng_data->ppnows, NULL, 0,
+                              seed, sizeof(seed));
+        if (ret < 0) {
+                prng_errorflag = PRNG_SEED_FAILED;
+                ret = -EIO;
+                goto outfree;
+        }
+
+        /* if fips mode is enabled, generate a first block of random
+           bytes for the FIPS 140-2 Conditional Self Test */
+        if (fips_enabled) {
+                prng_data->prev = prng_data->buf + prng_chunk_size;
+                ret = crypt_s390_ppno(PPNO_SHA512_DRNG_GEN,
+                                      &prng_data->ppnows,
+                                      prng_data->prev,
+                                      prng_chunk_size,
+                                      NULL, 0);
+                if (ret < 0 || ret != prng_chunk_size) {
+                        prng_errorflag = PRNG_GEN_FAILED;
+                        ret = -EIO;
+                        goto outfree;
+                }
+        }
+
+        return 0;
+
+outfree:
+        kfree(prng_data);
+        return ret;
+}
+
+
+static void prng_sha512_deinstantiate(void)
+{
+        pr_debug("The prng module stopped after running in SHA-512 mode\n");
+        kzfree(prng_data);
+}
+
+
+static int prng_sha512_reseed(void)
+{
+        int ret;
+        u8 seed[32];
+
+        /* generate 32 bytes of fresh entropy */
+        ret = generate_entropy(seed, sizeof(seed));
+        if (ret != sizeof(seed))
+                return ret;
+
+        /* do a reseed of the ppno drng with this bytestring */
+        ret = crypt_s390_ppno(PPNO_SHA512_DRNG_SEED,
+                              &prng_data->ppnows, NULL, 0,
+                              seed, sizeof(seed));
+        if (ret) {
+                prng_errorflag = PRNG_RESEED_FAILED;
+                return -EIO;
+        }
+
+        return 0;
+}
+
+
+static int prng_sha512_generate(u8 *buf, size_t nbytes)
+{
+        int ret;
+
+        /* reseed needed ? */
+        if (prng_data->ppnows.reseed_counter > prng_reseed_limit) {
+                ret = prng_sha512_reseed();
+                if (ret)
+                        return ret;
+        }
+
+        /* PPNO generate */
+        ret = crypt_s390_ppno(PPNO_SHA512_DRNG_GEN,
+                              &prng_data->ppnows, buf, nbytes,
+                              NULL, 0);
+        if (ret < 0 || ret != nbytes) {
+                prng_errorflag = PRNG_GEN_FAILED;
+                return -EIO;
+        }
+
+        /* FIPS 140-2 Conditional Self Test */
+        if (fips_enabled) {
+                if (!memcmp(prng_data->prev, buf, nbytes)) {
+                        prng_errorflag = PRNG_GEN_FAILED;
+                        return -EILSEQ;
+                }
+                memcpy(prng_data->prev, buf, nbytes);
+        }
+
+        return ret;
+}
+
+
+/*** file io functions ***/
+
+static int prng_open(struct inode *inode, struct file *file)
+{
+        return nonseekable_open(inode, file);
+}
+
+
+static ssize_t prng_tdes_read(struct file *file, char __user *ubuf,
+                              size_t nbytes, loff_t *ppos)
+{
+        int chunk, n, tmp, ret = 0;
+
+        /* lock prng_data struct */
+        if (mutex_lock_interruptible(&prng_data->mutex))
+                return -ERESTARTSYS;
 
-        /* nbytes can be arbitrary length, we split it into chunks */
         while (nbytes) {
-                /* same as in extract_entropy_user in random.c */
                 if (need_resched()) {
                         if (signal_pending(current)) {
                                 if (ret == 0)
                                         ret = -ERESTARTSYS;
                                 break;
                         }
+                        /* give mutex free before calling schedule() */
+                        mutex_unlock(&prng_data->mutex);
                         schedule();
+                        /* occopy mutex again */
+                        if (mutex_lock_interruptible(&prng_data->mutex)) {
+                                if (ret == 0)
+                                        ret = -ERESTARTSYS;
+                                return ret;
+                        }
                 }
 
                 /*
@@ -112,12 +535,11 @@ static ssize_t prng_read(struct file *file, char __user *ubuf, size_t nbytes,
                 /* PRNG only likes multiples of 8 bytes */
                 n = (chunk + 7) & -8;
 
-                if (p->count > prng_entropy_limit)
-                        prng_seed(8);
+                if (prng_data->prngws.reseed_counter > prng_reseed_limit)
+                        prng_tdes_seed(8);
 
                 /* if the CPU supports PRNG stckf is present too */
-                asm volatile(".insn     s,0xb27c0000,%0"
-                             : "=m" (*((unsigned long long *)p->buf)) : : "cc");
+                *((unsigned long long *)prng_data->buf) = get_tod_clock_fast();
 
                 /*
                  * Beside the STCKF the input for the TDES-EDE is the output
@@ -132,35 +554,259 @@ static ssize_t prng_read(struct file *file, char __user *ubuf, size_t nbytes,
                  * Note: you can still get strict X9.17 conformity by setting
                  * prng_chunk_size to 8 bytes.
                 */
-                tmp = crypt_s390_kmc(KMC_PRNG, parm_block, p->buf, p->buf, n);
-                BUG_ON((tmp < 0) || (tmp != n));
+                tmp = crypt_s390_kmc(KMC_PRNG, prng_data->prngws.parm_block,
+                                     prng_data->buf, prng_data->buf, n);
+                if (tmp < 0 || tmp != n) {
+                        ret = -EIO;
+                        break;
+                }
 
-                p->count += n;
+                prng_data->prngws.byte_counter += n;
+                prng_data->prngws.reseed_counter += n;
 
-                if (copy_to_user(ubuf, p->buf, chunk))
+                if (copy_to_user(ubuf, prng_data->buf, chunk))
                         return -EFAULT;
 
                 nbytes -= chunk;
                 ret += chunk;
                 ubuf += chunk;
         }
+
+        /* unlock prng_data struct */
+        mutex_unlock(&prng_data->mutex);
+
         return ret;
 }
 
-static const struct file_operations prng_fops = {
+
+static ssize_t prng_sha512_read(struct file *file, char __user *ubuf,
+                                size_t nbytes, loff_t *ppos)
+{
+        int n, ret = 0;
+        u8 *p;
+
+        /* if errorflag is set do nothing and return 'broken pipe' */
+        if (prng_errorflag)
+                return -EPIPE;
+
+        /* lock prng_data struct */
+        if (mutex_lock_interruptible(&prng_data->mutex))
+                return -ERESTARTSYS;
+
+        while (nbytes) {
+                if (need_resched()) {
+                        if (signal_pending(current)) {
+                                if (ret == 0)
+                                        ret = -ERESTARTSYS;
+                                break;
+                        }
+                        /* give mutex free before calling schedule() */
+                        mutex_unlock(&prng_data->mutex);
+                        schedule();
+                        /* occopy mutex again */
+                        if (mutex_lock_interruptible(&prng_data->mutex)) {
+                                if (ret == 0)
+                                        ret = -ERESTARTSYS;
+                                return ret;
+                        }
+                }
+                if (prng_data->rest) {
+                        /* push left over random bytes from the previous read */
+                        p = prng_data->buf + prng_chunk_size - prng_data->rest;
+                        n = (nbytes < prng_data->rest) ?
+                                nbytes : prng_data->rest;
+                        prng_data->rest -= n;
+                } else {
+                        /* generate one chunk of random bytes into read buf */
+                        p = prng_data->buf;
+                        n = prng_sha512_generate(p, prng_chunk_size);
+                        if (n < 0) {
+                                ret = n;
+                                break;
+                        }
+                        if (nbytes < prng_chunk_size) {
+                                n = nbytes;
+                                prng_data->rest = prng_chunk_size - n;
+                        } else {
+                                n = prng_chunk_size;
+                                prng_data->rest = 0;
+                        }
+                }
+                if (copy_to_user(ubuf, p, n)) {
+                        ret = -EFAULT;
+                        break;
+                }
+                ubuf += n;
+                nbytes -= n;
+                ret += n;
+        }
+
+        /* unlock prng_data struct */
+        mutex_unlock(&prng_data->mutex);
+
+        return ret;
+}
+
+
+/*** sysfs stuff ***/
+
+static const struct file_operations prng_sha512_fops = {
+        .owner          = THIS_MODULE,
+        .open           = &prng_open,
+        .release        = NULL,
+        .read           = &prng_sha512_read,
+        .llseek         = noop_llseek,
+};
+static const struct file_operations prng_tdes_fops = {
         .owner          = THIS_MODULE,
         .open           = &prng_open,
         .release        = NULL,
-        .read           = &prng_read,
+        .read           = &prng_tdes_read,
         .llseek         = noop_llseek,
 };
 
-static struct miscdevice prng_dev = {
+static struct miscdevice prng_sha512_dev = {
+        .name   = "prandom",
+        .minor  = MISC_DYNAMIC_MINOR,
+        .fops   = &prng_sha512_fops,
+};
+static struct miscdevice prng_tdes_dev = {
         .name   = "prandom",
         .minor  = MISC_DYNAMIC_MINOR,
-        .fops   = &prng_fops,
+        .fops   = &prng_tdes_fops,
 };
 
+
+/* chunksize attribute (ro) */
+static ssize_t prng_chunksize_show(struct device *dev,
+                                   struct device_attribute *attr,
+                                   char *buf)
+{
+        return snprintf(buf, PAGE_SIZE, "%u\n", prng_chunk_size);
+}
+static DEVICE_ATTR(chunksize, 0444, prng_chunksize_show, NULL);
+
+/* counter attribute (ro) */
+static ssize_t prng_counter_show(struct device *dev,
+                                 struct device_attribute *attr,
+                                 char *buf)
+{
+        u64 counter;
+
+        if (mutex_lock_interruptible(&prng_data->mutex))
+                return -ERESTARTSYS;
+        if (prng_mode == PRNG_MODE_SHA512)
+                counter = prng_data->ppnows.stream_bytes;
+        else
+                counter = prng_data->prngws.byte_counter;
+        mutex_unlock(&prng_data->mutex);
+
+        return snprintf(buf, PAGE_SIZE, "%llu\n", counter);
+}
+static DEVICE_ATTR(byte_counter, 0444, prng_counter_show, NULL);
+
+/* errorflag attribute (ro) */
+static ssize_t prng_errorflag_show(struct device *dev,
+                                   struct device_attribute *attr,
+                                   char *buf)
+{
+        return snprintf(buf, PAGE_SIZE, "%d\n", prng_errorflag);
+}
+static DEVICE_ATTR(errorflag, 0444, prng_errorflag_show, NULL);
+
+/* mode attribute (ro) */
+static ssize_t prng_mode_show(struct device *dev,
+                              struct device_attribute *attr,
+                              char *buf)
+{
+        if (prng_mode == PRNG_MODE_TDES)
+                return snprintf(buf, PAGE_SIZE, "TDES\n");
+        else
+                return snprintf(buf, PAGE_SIZE, "SHA512\n");
+}
+static DEVICE_ATTR(mode, 0444, prng_mode_show, NULL);
+
+/* reseed attribute (w) */
+static ssize_t prng_reseed_store(struct device *dev,
+                                 struct device_attribute *attr,
+                                 const char *buf, size_t count)
+{
+        if (mutex_lock_interruptible(&prng_data->mutex))
+                return -ERESTARTSYS;
+        prng_sha512_reseed();
+        mutex_unlock(&prng_data->mutex);
+
+        return count;
+}
+static DEVICE_ATTR(reseed, 0200, NULL, prng_reseed_store);
+
+/* reseed limit attribute (rw) */
+static ssize_t prng_reseed_limit_show(struct device *dev,
+                                      struct device_attribute *attr,
+                                      char *buf)
+{
+        return snprintf(buf, PAGE_SIZE, "%u\n", prng_reseed_limit);
+}
+static ssize_t prng_reseed_limit_store(struct device *dev,
+                                       struct device_attribute *attr,
+                                       const char *buf, size_t count)
+{
+        unsigned limit;
+
+        if (sscanf(buf, "%u\n", &limit) != 1)
+                return -EINVAL;
+
+        if (prng_mode == PRNG_MODE_SHA512) {
+                if (limit < PRNG_RESEED_LIMIT_SHA512_LOWER)
+                        return -EINVAL;
+        } else {
+                if (limit < PRNG_RESEED_LIMIT_TDES_LOWER)
+                        return -EINVAL;
+        }
+
+        prng_reseed_limit = limit;
+
+        return count;
+}
+static DEVICE_ATTR(reseed_limit, 0644,
+                   prng_reseed_limit_show, prng_reseed_limit_store);
+
+/* strength attribute (ro) */
+static ssize_t prng_strength_show(struct device *dev,
+                                  struct device_attribute *attr,
+                                  char *buf)
+{
+        return snprintf(buf, PAGE_SIZE, "256\n");
+}
+static DEVICE_ATTR(strength, 0444, prng_strength_show, NULL);
+
+static struct attribute *prng_sha512_dev_attrs[] = {
+        &dev_attr_errorflag.attr,
+        &dev_attr_chunksize.attr,
+        &dev_attr_byte_counter.attr,
+        &dev_attr_mode.attr,
+        &dev_attr_reseed.attr,
+        &dev_attr_reseed_limit.attr,
+        &dev_attr_strength.attr,
+        NULL
+};
+static struct attribute *prng_tdes_dev_attrs[] = {
+        &dev_attr_chunksize.attr,
+        &dev_attr_byte_counter.attr,
+        &dev_attr_mode.attr,
+        NULL
+};
+
+static struct attribute_group prng_sha512_dev_attr_group = {
+        .attrs = prng_sha512_dev_attrs
+};
+static struct attribute_group prng_tdes_dev_attr_group = {
+        .attrs = prng_tdes_dev_attrs
+};
+
+
+/*** module init and exit ***/
+
 static int __init prng_init(void)
 {
         int ret;
@@ -169,43 +815,105 @@ static int __init prng_init(void)
         if (!crypt_s390_func_available(KMC_PRNG, CRYPT_S390_MSA))
                 return -EOPNOTSUPP;
 
-        if (prng_chunk_size < 8)
-                return -EINVAL;
+        /* choose prng mode */
+        if (prng_mode != PRNG_MODE_TDES) {
+                /* check for MSA5 support for PPNO operations */
+                if (!crypt_s390_func_available(PPNO_SHA512_DRNG_GEN,
+                                               CRYPT_S390_MSA5)) {
+                        if (prng_mode == PRNG_MODE_SHA512) {
+                                pr_err("The prng module cannot "
+                                       "start in SHA-512 mode\n");
+                                return -EOPNOTSUPP;
+                        }
+                        prng_mode = PRNG_MODE_TDES;
+                } else
+                        prng_mode = PRNG_MODE_SHA512;
+        }
 
-        p = kmalloc(sizeof(struct s390_prng_data), GFP_KERNEL);
-        if (!p)
-                return -ENOMEM;
-        p->count = 0;
+        if (prng_mode == PRNG_MODE_SHA512) {
 
-        p->buf = kmalloc(prng_chunk_size, GFP_KERNEL);
-        if (!p->buf) {
-                ret = -ENOMEM;
-                goto out_free;
-        }
+                /* SHA512 mode */
 
-        /* initialize the PRNG, add 128 bits of entropy */
-        prng_seed(16);
+                if (prng_chunk_size < PRNG_CHUNKSIZE_SHA512_MIN
+                    || prng_chunk_size > PRNG_CHUNKSIZE_SHA512_MAX)
+                        return -EINVAL;
+                prng_chunk_size = (prng_chunk_size + 0x3f) & ~0x3f;
 
-        ret = misc_register(&prng_dev);
-        if (ret)
-                goto out_buf;
-        return 0;
+                if (prng_reseed_limit == 0)
+                        prng_reseed_limit = PRNG_RESEED_LIMIT_SHA512;
+                else if (prng_reseed_limit < PRNG_RESEED_LIMIT_SHA512_LOWER)
+                        return -EINVAL;
+
+                ret = prng_sha512_instantiate();
+                if (ret)
+                        goto out;
+
+                ret = misc_register(&prng_sha512_dev);
+                if (ret) {
+                        prng_sha512_deinstantiate();
+                        goto out;
+                }
+                ret = sysfs_create_group(&prng_sha512_dev.this_device->kobj,
+                                         &prng_sha512_dev_attr_group);
+                if (ret) {
+                        misc_deregister(&prng_sha512_dev);
+                        prng_sha512_deinstantiate();
+                        goto out;
+                }
 
-out_buf:
-        kfree(p->buf);
-out_free:
-        kfree(p);
+        } else {
+
+                /* TDES mode */
+
+                if (prng_chunk_size < PRNG_CHUNKSIZE_TDES_MIN
+                    || prng_chunk_size > PRNG_CHUNKSIZE_TDES_MAX)
+                        return -EINVAL;
+                prng_chunk_size = (prng_chunk_size + 0x07) & ~0x07;
+
+                if (prng_reseed_limit == 0)
+                        prng_reseed_limit = PRNG_RESEED_LIMIT_TDES;
+                else if (prng_reseed_limit < PRNG_RESEED_LIMIT_TDES_LOWER)
+                        return -EINVAL;
+
+                ret = prng_tdes_instantiate();
+                if (ret)
+                        goto out;
+
+                ret = misc_register(&prng_tdes_dev);
+                if (ret) {
+                        prng_tdes_deinstantiate();
+                        goto out;
+                }
+                ret = sysfs_create_group(&prng_tdes_dev.this_device->kobj,
+                                         &prng_tdes_dev_attr_group);
+                if (ret) {
+                        misc_deregister(&prng_tdes_dev);
+                        prng_tdes_deinstantiate();
+                        goto out;
+                }
+
+        }
+
+out:
         return ret;
 }
 
+
 static void __exit prng_exit(void)
 {
-        /* wipe me */
-        kzfree(p->buf);
-        kfree(p);
-
-        misc_deregister(&prng_dev);
+        if (prng_mode == PRNG_MODE_SHA512) {
+                sysfs_remove_group(&prng_sha512_dev.this_device->kobj,
+                                   &prng_sha512_dev_attr_group);
+                misc_deregister(&prng_sha512_dev);
+                prng_sha512_deinstantiate();
+        } else {
+                sysfs_remove_group(&prng_tdes_dev.this_device->kobj,
+                                   &prng_tdes_dev_attr_group);
+                misc_deregister(&prng_tdes_dev);
+                prng_tdes_deinstantiate();
+        }
 }
 
+
 module_init(prng_init);
 module_exit(prng_exit);
diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h
index 694bcd6bd927..2f924bc30e35 100644
--- a/arch/s390/include/asm/kexec.h
+++ b/arch/s390/include/asm/kexec.h
@@ -26,6 +26,9 @@
 /* Not more than 2GB */
 #define KEXEC_CONTROL_MEMORY_LIMIT (1UL<<31)
 
+/* Allocate control page with GFP_DMA */
+#define KEXEC_CONTROL_MEMORY_GFP GFP_DMA
+
 /* Maximum address we can use for the crash control pages */
 #define KEXEC_CRASH_CONTROL_MEMORY_LIMIT (-1UL)
 
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index a5e656260a70..d29ad9545b41 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -14,7 +14,9 @@ typedef struct {
         unsigned long asce_bits;
         unsigned long asce_limit;
         unsigned long vdso_base;
-        /* The mmu context has extended page tables. */
+        /* The mmu context allocates 4K page tables. */
+        unsigned int alloc_pgste:1;
+        /* The mmu context uses extended page tables. */
         unsigned int has_pgste:1;
         /* The mmu context uses storage keys. */
         unsigned int use_skey:1;
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index d25d9ff10ba8..fb1b93ea3e3f 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -20,8 +20,11 @@ static inline int init_new_context(struct task_struct *tsk,
         mm->context.flush_mm = 0;
         mm->context.asce_bits = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS;
         mm->context.asce_bits |= _ASCE_TYPE_REGION3;
+#ifdef CONFIG_PGSTE
+        mm->context.alloc_pgste = page_table_allocate_pgste;
         mm->context.has_pgste = 0;
         mm->context.use_skey = 0;
+#endif
         mm->context.asce_limit = STACK_TOP_MAX;
         crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm));
         return 0;
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index 51e7fb634ebc..7b7858f158b4 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -21,6 +21,7 @@ void crst_table_free(struct mm_struct *, unsigned long *);
 unsigned long *page_table_alloc(struct mm_struct *);
 void page_table_free(struct mm_struct *, unsigned long *);
 void page_table_free_rcu(struct mmu_gather *, unsigned long *, unsigned long);
+extern int page_table_allocate_pgste;
 
 int set_guest_storage_key(struct mm_struct *mm, unsigned long addr,
                           unsigned long key, bool nq);
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 989cfae9e202..fc642399b489 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -12,12 +12,9 @@
 #define _ASM_S390_PGTABLE_H
 
 /*
- * The Linux memory management assumes a three-level page table setup. For
- * s390 31 bit we "fold" the mid level into the top-level page table, so
- * that we physically have the same two-level page table as the s390 mmu
- * expects in 31 bit mode. For s390 64 bit we use three of the five levels
- * the hardware provides (region first and region second tables are not
- * used).
+ * The Linux memory management assumes a three-level page table setup.
+ * For s390 64 bit we use up to four of the five levels the hardware
+ * provides (region first tables are not used).
  *
  * The "pgd_xxx()" functions are trivial for a folded two-level
  * setup: the pgd is never bad, and a pmd always exists (as it's folded
@@ -101,8 +98,8 @@ extern unsigned long zero_page_mask;
 
 #ifndef __ASSEMBLY__
 /*
- * The vmalloc and module area will always be on the topmost area of the kernel
- * mapping. We reserve 96MB (31bit) / 128GB (64bit) for vmalloc and modules.
+ * The vmalloc and module area will always be on the topmost area of the
+ * kernel mapping. We reserve 128GB (64bit) for vmalloc and modules.
  * On 64 bit kernels we have a 2GB area at the top of the vmalloc area where
  * modules will reside. That makes sure that inter module branches always
  * happen without trampolines and in addition the placement within a 2GB frame
@@ -131,38 +128,6 @@ static inline int is_module_addr(void *addr)
 }
 
 /*
- * A 31 bit pagetable entry of S390 has following format:
- *  |   PFRA          |    |  OS  |
- * 0                   0IP0
- * 00000000001111111111222222222233
- * 01234567890123456789012345678901
- *
- * I Page-Invalid Bit:    Page is not available for address-translation
- * P Page-Protection Bit: Store access not possible for page
- *
- * A 31 bit segmenttable entry of S390 has following format:
- *  |   P-table origin      |  |PTL
- * 0                         IC
- * 00000000001111111111222222222233
- * 01234567890123456789012345678901
- *
- * I Segment-Invalid Bit:    Segment is not available for address-translation
- * C Common-Segment Bit:     Segment is not private (PoP 3-30)
- * PTL Page-Table-Length:    Page-table length (PTL+1*16 entries -> up to 256)
- *
- * The 31 bit segmenttable origin of S390 has following format:
- *
- *  |S-table origin   |     | STL |
- * X                   **GPS
- * 00000000001111111111222222222233
- * 01234567890123456789012345678901
- *
- * X Space-Switch event:
- * G Segment-Invalid Bit:     *
- * P Private-Space Bit:       Segment is not private (PoP 3-30)
- * S Storage-Alteration:
- * STL Segment-Table-Length:  Segment-table length (STL+1*16 entries -> up to 2048)
- *
  * A 64 bit pagetable entry of S390 has following format:
  * |                     PFRA                         |0IPC|  OS  |
  * 0000000000111111111122222222223333333333444444444455555555556666
@@ -220,7 +185,6 @@ static inline int is_module_addr(void *addr)
 
 /* Software bits in the page table entry */
 #define _PAGE_PRESENT   0x001           /* SW pte present bit */
-#define _PAGE_TYPE      0x002           /* SW pte type bit */
 #define _PAGE_YOUNG     0x004           /* SW pte young bit */
 #define _PAGE_DIRTY     0x008           /* SW pte dirty bit */
 #define _PAGE_READ      0x010           /* SW pte read bit */
@@ -240,31 +204,34 @@ static inline int is_module_addr(void *addr)
  * table lock held.
  *
  * The following table gives the different possible bit combinations for
- * the pte hardware and software bits in the last 12 bits of a pte:
+ * the pte hardware and software bits in the last 12 bits of a pte
+ * (. unassigned bit, x don't care, t swap type):
  *
  *                              842100000000
  *                              000084210000
  *                              000000008421
- *                              .IR...wrdytp
- * empty                        .10...000000
- * swap                         .10...xxxx10
- * file                         .11...xxxxx0
- * prot-none, clean, old        .11...000001
- * prot-none, clean, young      .11...000101
- * prot-none, dirty, old        .10...001001
- * prot-none, dirty, young      .10...001101
- * read-only, clean, old        .11...010001
- * read-only, clean, young      .01...010101
- * read-only, dirty, old        .11...011001
- * read-only, dirty, young      .01...011101
- * read-write, clean, old       .11...110001
- * read-write, clean, young     .01...110101
- * read-write, dirty, old       .10...111001
- * read-write, dirty, young     .00...111101
+ *                              .IR.uswrdy.p
+ * empty                        .10.00000000
+ * swap                         .11..ttttt.0
+ * prot-none, clean, old        .11.xx0000.1
+ * prot-none, clean, young      .11.xx0001.1
+ * prot-none, dirty, old        .10.xx0010.1
+ * prot-none, dirty, young      .10.xx0011.1
+ * read-only, clean, old        .11.xx0100.1
+ * read-only, clean, young      .01.xx0101.1
+ * read-only, dirty, old        .11.xx0110.1
+ * read-only, dirty, young      .01.xx0111.1
+ * read-write, clean, old       .11.xx1100.1
+ * read-write, clean, young     .01.xx1101.1
+ * read-write, dirty, old       .10.xx1110.1
+ * read-write, dirty, young     .00.xx1111.1
+ * HW-bits: R read-only, I invalid
+ * SW-bits: p present, y young, d dirty, r read, w write, s special,
+ *          u unused, l large
  *
- * pte_present is true for the bit pattern .xx...xxxxx1, (pte & 0x001) == 0x001
- * pte_none    is true for the bit pattern .10...xxxx00, (pte & 0x603) == 0x400
- * pte_swap    is true for the bit pattern .10...xxxx10, (pte & 0x603) == 0x402
+ * pte_none    is true for the bit pattern .10.00000000, pte == 0x400
+ * pte_swap    is true for the bit pattern .11..ooooo.0, (pte & 0x201) == 0x200
+ * pte_present is true for the bit pattern .xx.xxxxxx.1, (pte & 0x001) == 0x001
  */
 
 /* Bits in the segment/region table address-space-control-element */
@@ -335,6 +302,8 @@ static inline int is_module_addr(void *addr)
  * read-write, dirty, young     11..0...0...11
  * The segment table origin is used to distinguish empty (origin==0) from
  * read-write, old segment table entries (origin!=0)
+ * HW-bits: R read-only, I invalid
+ * SW-bits: y young, d dirty, r read, w write
  */
 
 #define _SEGMENT_ENTRY_SPLIT_BIT 11     /* THP splitting bit number */
@@ -423,6 +392,15 @@ static inline int mm_has_pgste(struct mm_struct *mm)
         return 0;
 }
 
+static inline int mm_alloc_pgste(struct mm_struct *mm)
+{
+#ifdef CONFIG_PGSTE
+        if (unlikely(mm->context.alloc_pgste))
+                return 1;
+#endif
+        return 0;
+}
+
 /*
  * In the case that a guest uses storage keys
  * faults should no longer be backed by zero pages
@@ -582,10 +560,9 @@ static inline int pte_none(pte_t pte)
 
 static inline int pte_swap(pte_t pte)
 {
-        /* Bit pattern: (pte & 0x603) == 0x402 */
-        return (pte_val(pte) & (_PAGE_INVALID | _PAGE_PROTECT |
-                                _PAGE_TYPE | _PAGE_PRESENT))
-                == (_PAGE_INVALID | _PAGE_TYPE);
+        /* Bit pattern: (pte & 0x201) == 0x200 */
+        return (pte_val(pte) & (_PAGE_PROTECT | _PAGE_PRESENT))
+                == _PAGE_PROTECT;
 }
 
 static inline int pte_special(pte_t pte)
@@ -1586,51 +1563,51 @@ static inline int has_transparent_hugepage(void)
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
 /*
- * 31 bit swap entry format:
- * A page-table entry has some bits we have to treat in a special way.
- * Bits 0, 20 and bit 23 have to be zero, otherwise an specification
- * exception will occur instead of a page translation exception. The
- * specifiation exception has the bad habit not to store necessary
- * information in the lowcore.
- * Bits 21, 22, 30 and 31 are used to indicate the page type.
- * A swap pte is indicated by bit pattern (pte & 0x603) == 0x402
- * This leaves the bits 1-19 and bits 24-29 to store type and offset.
- * We use the 5 bits from 25-29 for the type and the 20 bits from 1-19
- * plus 24 for the offset.
- * 0|     offset        |0110|o|type |00|
- * 0 0000000001111111111 2222 2 22222 33
- * 0 1234567890123456789 0123 4 56789 01
- *
  * 64 bit swap entry format:
  * A page-table entry has some bits we have to treat in a special way.
  * Bits 52 and bit 55 have to be zero, otherwise an specification
  * exception will occur instead of a page translation exception. The
  * specifiation exception has the bad habit not to store necessary
  * information in the lowcore.
- * Bits 53, 54, 62 and 63 are used to indicate the page type.
- * A swap pte is indicated by bit pattern (pte & 0x603) == 0x402
- * This leaves the bits 0-51 and bits 56-61 to store type and offset.
- * We use the 5 bits from 57-61 for the type and the 53 bits from 0-51
- * plus 56 for the offset.
- * |                      offset                        |0110|o|type |00|
- *  0000000000111111111122222222223333333333444444444455 5555 5 55566 66
- *  0123456789012345678901234567890123456789012345678901 2345 6 78901 23
+ * Bits 54 and 63 are used to indicate the page type.
+ * A swap pte is indicated by bit pattern (pte & 0x201) == 0x200
+ * This leaves the bits 0-51 and bits 56-62 to store type and offset.
+ * We use the 5 bits from 57-61 for the type and the 52 bits from 0-51
+ * for the offset.
+ * |                      offset                        |01100|type |00|
+ * |0000000000111111111122222222223333333333444444444455|55555|55566|66|
+ * |0123456789012345678901234567890123456789012345678901|23456|78901|23|
  */
 
-#define __SWP_OFFSET_MASK (~0UL >> 11)
+#define __SWP_OFFSET_MASK       ((1UL << 52) - 1)
+#define __SWP_OFFSET_SHIFT      12
+#define __SWP_TYPE_MASK         ((1UL << 5) - 1)
+#define __SWP_TYPE_SHIFT        2
 
 static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
 {
         pte_t pte;
-        offset &= __SWP_OFFSET_MASK;
-        pte_val(pte) = _PAGE_INVALID | _PAGE_TYPE | ((type & 0x1f) << 2) |
-                ((offset & 1UL) << 7) | ((offset & ~1UL) << 11);
+
+        pte_val(pte) = _PAGE_INVALID | _PAGE_PROTECT;
+        pte_val(pte) |= (offset & __SWP_OFFSET_MASK) << __SWP_OFFSET_SHIFT;
+        pte_val(pte) |= (type & __SWP_TYPE_MASK) << __SWP_TYPE_SHIFT;
         return pte;
 }
 
-#define __swp_type(entry)       (((entry).val >> 2) & 0x1f)
-#define __swp_offset(entry)     (((entry).val >> 11) | (((entry).val >> 7) & 1))
-#define __swp_entry(type,offset) ((swp_entry_t) { pte_val(mk_swap_pte((type),(offset))) })
+static inline unsigned long __swp_type(swp_entry_t entry)
+{
+        return (entry.val >> __SWP_TYPE_SHIFT) & __SWP_TYPE_MASK;
+}
+
+static inline unsigned long __swp_offset(swp_entry_t entry)
+{
+        return (entry.val >> __SWP_OFFSET_SHIFT) & __SWP_OFFSET_MASK;
+}
+
+static inline swp_entry_t __swp_entry(unsigned long type, unsigned long offset)
+{
+        return (swp_entry_t) { pte_val(mk_swap_pte(type, offset)) };
+}
 
 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)   ((pte_t) { (x).val })
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index 210ffede0153..e617e74b7be2 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -14,20 +14,23 @@ static inline pmd_t __pte_to_pmd(pte_t pte)
 
         /*
          * Convert encoding               pte bits         pmd bits
-         *                              .IR...wrdytp    dy..R...I...wr
-         * empty                        .10...000000 -> 00..0...1...00
-         * prot-none, clean, old        .11...000001 -> 00..1...1...00
-         * prot-none, clean, young      .11...000101 -> 01..1...1...00
-         * prot-none, dirty, old        .10...001001 -> 10..1...1...00
-         * prot-none, dirty, young      .10...001101 -> 11..1...1...00
-         * read-only, clean, old        .11...010001 -> 00..1...1...01
-         * read-only, clean, young      .01...010101 -> 01..1...0...01
-         * read-only, dirty, old        .11...011001 -> 10..1...1...01
-         * read-only, dirty, young      .01...011101 -> 11..1...0...01
-         * read-write, clean, old       .11...110001 -> 00..0...1...11
-         * read-write, clean, young     .01...110101 -> 01..0...0...11
-         * read-write, dirty, old       .10...111001 -> 10..0...1...11
-         * read-write, dirty, young     .00...111101 -> 11..0...0...11
+         *                              lIR.uswrdy.p    dy..R...I...wr
+         * empty                        010.000000.0 -> 00..0...1...00
+         * prot-none, clean, old        111.000000.1 -> 00..1...1...00
+         * prot-none, clean, young      111.000001.1 -> 01..1...1...00
+         * prot-none, dirty, old        111.000010.1 -> 10..1...1...00
+         * prot-none, dirty, young      111.000011.1 -> 11..1...1...00
+         * read-only, clean, old        111.000100.1 -> 00..1...1...01
+         * read-only, clean, young      101.000101.1 -> 01..1...0...01
+         * read-only, dirty, old        111.000110.1 -> 10..1...1...01
+         * read-only, dirty, young      101.000111.1 -> 11..1...0...01
+         * read-write, clean, old       111.001100.1 -> 00..1...1...11
+         * read-write, clean, young     101.001101.1 -> 01..1...0...11
+         * read-write, dirty, old       110.001110.1 -> 10..0...1...11
+         * read-write, dirty, young     100.001111.1 -> 11..0...0...11
+         * HW-bits: R read-only, I invalid
+         * SW-bits: p present, y young, d dirty, r read, w write, s special,
+         *          u unused, l large
          */
         if (pte_present(pte)) {
                 pmd_val(pmd) = pte_val(pte) & PAGE_MASK;
@@ -48,20 +51,23 @@ static inline pte_t __pmd_to_pte(pmd_t pmd)
 
         /*
          * Convert encoding                pmd bits         pte bits
-         *                              dy..R...I...wr    .IR...wrdytp
-         * empty                        00..0...1...00 -> .10...001100
-         * prot-none, clean, old        00..0...1...00 -> .10...000001
-         * prot-none, clean, young      01..0...1...00 -> .10...000101
-         * prot-none, dirty, old        10..0...1...00 -> .10...001001
-         * prot-none, dirty, young      11..0...1...00 -> .10...001101
-         * read-only, clean, old        00..1...1...01 -> .11...010001
-         * read-only, clean, young      01..1...1...01 -> .11...010101
-         * read-only, dirty, old        10..1...1...01 -> .11...011001
-         * read-only, dirty, young      11..1...1...01 -> .11...011101
-         * read-write, clean, old       00..0...1...11 -> .10...110001
-         * read-write, clean, young     01..0...1...11 -> .10...110101
-         * read-write, dirty, old       10..0...1...11 -> .10...111001
-         * read-write, dirty, young     11..0...1...11 -> .10...111101
+         *                              dy..R...I...wr    lIR.uswrdy.p
+         * empty                        00..0...1...00 -> 010.000000.0
+         * prot-none, clean, old        00..1...1...00 -> 111.000000.1
+         * prot-none, clean, young      01..1...1...00 -> 111.000001.1
+         * prot-none, dirty, old        10..1...1...00 -> 111.000010.1
+         * prot-none, dirty, young      11..1...1...00 -> 111.000011.1
+         * read-only, clean, old        00..1...1...01 -> 111.000100.1
+         * read-only, clean, young      01..1...0...01 -> 101.000101.1
+         * read-only, dirty, old        10..1...1...01 -> 111.000110.1
+         * read-only, dirty, young      11..1...0...01 -> 101.000111.1
+         * read-write, clean, old       00..1...1...11 -> 111.001100.1
+         * read-write, clean, young     01..1...0...11 -> 101.001101.1
+         * read-write, dirty, old       10..0...1...11 -> 110.001110.1
+         * read-write, dirty, young     11..0...0...11 -> 100.001111.1
+         * HW-bits: R read-only, I invalid
+         * SW-bits: p present, y young, d dirty, r read, w write, s special,
+         *          u unused, l large
          */
         if (pmd_present(pmd)) {
                 pte_val(pte) = pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN_LARGE;
@@ -70,8 +76,8 @@ static inline pte_t __pmd_to_pte(pmd_t pmd)
                 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_WRITE) << 4;
                 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_INVALID) << 5;
                 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_PROTECT);
-                pmd_val(pmd) |= (pte_val(pte) & _PAGE_DIRTY) << 10;
-                pmd_val(pmd) |= (pte_val(pte) & _PAGE_YOUNG) << 10;
+                pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY) >> 10;
+                pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_YOUNG) >> 10;
         } else
                 pte_val(pte) = _PAGE_INVALID;
         return pte;
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 33f589459113..b33f66110ca9 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -18,6 +18,7 @@
 #include <linux/rcupdate.h>
 #include <linux/slab.h>
 #include <linux/swapops.h>
+#include <linux/sysctl.h>
 #include <linux/ksm.h>
 #include <linux/mman.h>
 
@@ -920,6 +921,40 @@ unsigned long get_guest_storage_key(struct mm_struct *mm, unsigned long addr)
 }
 EXPORT_SYMBOL(get_guest_storage_key);
 
+static int page_table_allocate_pgste_min = 0;
+static int page_table_allocate_pgste_max = 1;
+int page_table_allocate_pgste = 0;
+EXPORT_SYMBOL(page_table_allocate_pgste);
+
+static struct ctl_table page_table_sysctl[] = {
+        {
+                .procname       = "allocate_pgste",
+                .data           = &page_table_allocate_pgste,
+                .maxlen         = sizeof(int),
+                .mode           = S_IRUGO | S_IWUSR,
+                .proc_handler   = proc_dointvec,
+                .extra1         = &page_table_allocate_pgste_min,
+                .extra2         = &page_table_allocate_pgste_max,
+        },
+        { }
+};
+
+static struct ctl_table page_table_sysctl_dir[] = {
+        {
+                .procname       = "vm",
+                .maxlen         = 0,
+                .mode           = 0555,
+                .child          = page_table_sysctl,
+        },
+        { }
+};
+
+static int __init page_table_register_sysctl(void)
+{
+        return register_sysctl_table(page_table_sysctl_dir) ? 0 : -ENOMEM;
+}
+__initcall(page_table_register_sysctl);
+
 #else /* CONFIG_PGSTE */
 
 static inline int page_table_with_pgste(struct page *page)
@@ -963,7 +998,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
         struct page *uninitialized_var(page);
         unsigned int mask, bit;
 
-        if (mm_has_pgste(mm))
+        if (mm_alloc_pgste(mm))
                 return page_table_alloc_pgste(mm);
         /* Allocate fragments of a 4K page as 1K/2K page table */
         spin_lock_bh(&mm->context.list_lock);
@@ -1165,116 +1200,25 @@ static inline void thp_split_mm(struct mm_struct *mm)
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
-static unsigned long page_table_realloc_pmd(struct mmu_gather *tlb,
-                                struct mm_struct *mm, pud_t *pud,
-                                unsigned long addr, unsigned long end)
-{
-        unsigned long next, *table, *new;
-        struct page *page;
-        spinlock_t *ptl;
-        pmd_t *pmd;
-
-        pmd = pmd_offset(pud, addr);
-        do {
-                next = pmd_addr_end(addr, end);
-again:
-                if (pmd_none_or_clear_bad(pmd))
-                        continue;
-                table = (unsigned long *) pmd_deref(*pmd);
-                page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
-                if (page_table_with_pgste(page))
-                        continue;
-                /* Allocate new page table with pgstes */
-                new = page_table_alloc_pgste(mm);
-                if (!new)
-                        return -ENOMEM;
-
-                ptl = pmd_lock(mm, pmd);
-                if (likely((unsigned long *) pmd_deref(*pmd) == table)) {
-                        /* Nuke pmd entry pointing to the "short" page table */
-                        pmdp_flush_lazy(mm, addr, pmd);
-                        pmd_clear(pmd);
-                        /* Copy ptes from old table to new table */
-                        memcpy(new, table, PAGE_SIZE/2);
-                        clear_table(table, _PAGE_INVALID, PAGE_SIZE/2);
-                        /* Establish new table */
-                        pmd_populate(mm, pmd, (pte_t *) new);
-                        /* Free old table with rcu, there might be a walker! */
-                        page_table_free_rcu(tlb, table, addr);
-                        new = NULL;
-                }
-                spin_unlock(ptl);
-                if (new) {
-                        page_table_free_pgste(new);
-                        goto again;
-                }
-        } while (pmd++, addr = next, addr != end);
-
-        return addr;
-}
-
-static unsigned long page_table_realloc_pud(struct mmu_gather *tlb,
-                                   struct mm_struct *mm, pgd_t *pgd,
-                                   unsigned long addr, unsigned long end)
-{
-        unsigned long next;
-        pud_t *pud;
-
-        pud = pud_offset(pgd, addr);
-        do {
-                next = pud_addr_end(addr, end);
-                if (pud_none_or_clear_bad(pud))
-                        continue;
-                next = page_table_realloc_pmd(tlb, mm, pud, addr, next);
-                if (unlikely(IS_ERR_VALUE(next)))
-                        return next;
-        } while (pud++, addr = next, addr != end);
-
-        return addr;
-}
-
-static unsigned long page_table_realloc(struct mmu_gather *tlb, struct mm_struct *mm,
-                                        unsigned long addr, unsigned long end)
-{
-        unsigned long next;
-        pgd_t *pgd;
-
-        pgd = pgd_offset(mm, addr);
-        do {
-                next = pgd_addr_end(addr, end);
-                if (pgd_none_or_clear_bad(pgd))
-                        continue;
-                next = page_table_realloc_pud(tlb, mm, pgd, addr, next);
-                if (unlikely(IS_ERR_VALUE(next)))
-                        return next;
-        } while (pgd++, addr = next, addr != end);
-
-        return 0;
-}
-
 /*
  * switch on pgstes for its userspace process (for kvm)
  */
 int s390_enable_sie(void)
 {
-        struct task_struct *tsk = current;
-        struct mm_struct *mm = tsk->mm;
-        struct mmu_gather tlb;
+        struct mm_struct *mm = current->mm;
 
         /* Do we have pgstes? if yes, we are done */
-        if (mm_has_pgste(tsk->mm))
+        if (mm_has_pgste(mm))
                 return 0;
-
+        /* Fail if the page tables are 2K */
+        if (!mm_alloc_pgste(mm))
+                return -EINVAL;
         down_write(&mm->mmap_sem);
+        mm->context.has_pgste = 1;
         /* split thp mappings and disable thp for future mappings */
         thp_split_mm(mm);
-        /* Reallocate the page tables with pgstes */
-        tlb_gather_mmu(&tlb, mm, 0, TASK_SIZE);
-        if (!page_table_realloc(&tlb, mm, 0, TASK_SIZE))
-                mm->context.has_pgste = 1;
-        tlb_finish_mmu(&tlb, 0, TASK_SIZE);
         up_write(&mm->mmap_sem);
-        return mm->context.has_pgste ? 0 : -ENOMEM;
+        return 0;
 }
 EXPORT_SYMBOL_GPL(s390_enable_sie);
 
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index 6873f006f7d0..d366675e4bf8 100644
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -774,7 +774,7 @@ static void __init zone_sizes_init(void)
                  * though, there'll be no lowmem, so we just alloc_bootmem
                  * the memmap.  There will be no percpu memory either.
                  */
-                if (i != 0 && cpumask_test_cpu(i, &isolnodes)) {
+                if (i != 0 && node_isset(i, isolnodes)) {
                         node_memmap_pfn[i] =
                                 alloc_bootmem_pfn(0, memmap_size, 0);
                         BUG_ON(node_percpu[i] != 0);
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index ef17683484e9..48304b89b601 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -1109,6 +1109,8 @@ struct boot_params *make_boot_params(struct efi_config *c)
         if (!cmdline_ptr)
                 goto fail;
         hdr->cmd_line_ptr = (unsigned long)cmdline_ptr;
+        /* Fill in upper bits of command line address, NOP on 32 bit  */
+        boot_params->ext_cmd_line_ptr = (u64)(unsigned long)cmdline_ptr >> 32;
 
         hdr->ramdisk_image = 0;
         hdr->ramdisk_size = 0;
diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h
index e42f758a0fbd..055ea9941dd5 100644
--- a/arch/x86/include/asm/hypervisor.h
+++ b/arch/x86/include/asm/hypervisor.h
@@ -50,7 +50,7 @@ extern const struct hypervisor_x86 *x86_hyper;
 /* Recognized hypervisors */
 extern const struct hypervisor_x86 x86_hyper_vmware;
 extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
-extern const struct hypervisor_x86 x86_hyper_xen_hvm;
+extern const struct hypervisor_x86 x86_hyper_xen;
 extern const struct hypervisor_x86 x86_hyper_kvm;
 
 extern void init_hypervisor(struct cpuinfo_x86 *c);
diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
index 25b1cc07d496..d6b078e9fa28 100644
--- a/arch/x86/include/asm/pvclock.h
+++ b/arch/x86/include/asm/pvclock.h
@@ -95,7 +95,6 @@ unsigned __pvclock_read_cycles(const struct pvclock_vcpu_time_info *src,
 
 struct pvclock_vsyscall_time_info {
         struct pvclock_vcpu_time_info pvti;
-        u32 migrate_count;
 } __attribute__((__aligned__(SMP_CACHE_BYTES)));
 
 #define PVTI_SIZE sizeof(struct pvclock_vsyscall_time_info)
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index cf87de3fc390..64b611782ef0 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -169,7 +169,7 @@ static inline int arch_spin_is_contended(arch_spinlock_t *lock)
         struct __raw_tickets tmp = READ_ONCE(lock->tickets);
 
         tmp.head &= ~TICKET_SLOWPATH_FLAG;
-        return (tmp.tail - tmp.head) > TICKET_LOCK_INC;
+        return (__ticket_t)(tmp.tail - tmp.head) > TICKET_LOCK_INC;
 }
 #define arch_spin_is_contended  arch_spin_is_contended
 
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index 358dcd338915..c44a5d53e464 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -269,4 +269,9 @@ static inline bool xen_arch_need_swiotlb(struct device *dev,
         return false;
 }
 
+static inline unsigned long xen_get_swiotlb_free_pages(unsigned int order)
+{
+        return __get_free_pages(__GFP_NOWARN, order);
+}
+
 #endif /* _ASM_X86_XEN_PAGE_H */
diff --git a/arch/x86/kernel/cpu/hypervisor.c b/arch/x86/kernel/cpu/hypervisor.c
index 36ce402a3fa5..d820d8eae96b 100644
--- a/arch/x86/kernel/cpu/hypervisor.c
+++ b/arch/x86/kernel/cpu/hypervisor.c
@@ -27,8 +27,8 @@
 
 static const __initconst struct hypervisor_x86 * const hypervisors[] =
 {
-#ifdef CONFIG_XEN_PVHVM
-        &x86_hyper_xen_hvm,
+#ifdef CONFIG_XEN
+        &x86_hyper_xen,
 #endif
         &x86_hyper_vmware,
         &x86_hyper_ms_hyperv,
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 219d3fb423a1..960e85de13fb 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -2533,34 +2533,6 @@ ssize_t intel_event_sysfs_show(char *page, u64 config)
         return x86_event_sysfs_show(page, config, event);
 }
 
-static __initconst const struct x86_pmu core_pmu = {
-        .name                   = "core",
-        .handle_irq             = x86_pmu_handle_irq,
-        .disable_all            = x86_pmu_disable_all,
-        .enable_all             = core_pmu_enable_all,
-        .enable                 = core_pmu_enable_event,
-        .disable                = x86_pmu_disable_event,
-        .hw_config              = x86_pmu_hw_config,
-        .schedule_events        = x86_schedule_events,
-        .eventsel               = MSR_ARCH_PERFMON_EVENTSEL0,
-        .perfctr                = MSR_ARCH_PERFMON_PERFCTR0,
-        .event_map              = intel_pmu_event_map,
-        .max_events             = ARRAY_SIZE(intel_perfmon_event_map),
-        .apic                   = 1,
-        /*
-         * Intel PMCs cannot be accessed sanely above 32 bit width,
-         * so we install an artificial 1<<31 period regardless of
-         * the generic event period:
-         */
-        .max_period             = (1ULL << 31) - 1,
-        .get_event_constraints  = intel_get_event_constraints,
-        .put_event_constraints  = intel_put_event_constraints,
-        .event_constraints      = intel_core_event_constraints,
-        .guest_get_msrs         = core_guest_get_msrs,
-        .format_attrs           = intel_arch_formats_attr,
-        .events_sysfs_show      = intel_event_sysfs_show,
-};
-
 struct intel_shared_regs *allocate_shared_regs(int cpu)
 {
         struct intel_shared_regs *regs;
@@ -2743,6 +2715,44 @@ static struct attribute *intel_arch3_formats_attr[] = {
         NULL,
 };
 
+static __initconst const struct x86_pmu core_pmu = {
+        .name                   = "core",
+        .handle_irq             = x86_pmu_handle_irq,
+        .disable_all            = x86_pmu_disable_all,
+        .enable_all             = core_pmu_enable_all,
+        .enable                 = core_pmu_enable_event,
+        .disable                = x86_pmu_disable_event,
+        .hw_config              = x86_pmu_hw_config,
+        .schedule_events        = x86_schedule_events,
+        .eventsel               = MSR_ARCH_PERFMON_EVENTSEL0,
+        .perfctr                = MSR_ARCH_PERFMON_PERFCTR0,
+        .event_map              = intel_pmu_event_map,
+        .max_events             = ARRAY_SIZE(intel_perfmon_event_map),
+        .apic                   = 1,
+        /*
+         * Intel PMCs cannot be accessed sanely above 32-bit width,
+         * so we install an artificial 1<<31 period regardless of
+         * the generic event period:
+         */
+        .max_period             = (1ULL<<31) - 1,
+        .get_event_constraints  = intel_get_event_constraints,
+        .put_event_constraints  = intel_put_event_constraints,
+        .event_constraints      = intel_core_event_constraints,
+        .guest_get_msrs         = core_guest_get_msrs,
+        .format_attrs           = intel_arch_formats_attr,
+        .events_sysfs_show      = intel_event_sysfs_show,
+
+        /*
+         * Virtual (or funny metal) CPU can define x86_pmu.extra_regs
+         * together with PMU version 1 and thus be using core_pmu with
+         * shared_regs. We need following callbacks here to allocate
+         * it properly.
+         */
+        .cpu_prepare            = intel_pmu_cpu_prepare,
+        .cpu_starting           = intel_pmu_cpu_starting,
+        .cpu_dying              = intel_pmu_cpu_dying,
+};
+
 static __initconst const struct x86_pmu intel_pmu = {
         .name                   = "Intel",
         .handle_irq             = intel_pmu_handle_irq,
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c b/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
index 3001015b755c..4562e9e22c60 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
@@ -1,6 +1,13 @@
 /* Nehalem/SandBridge/Haswell uncore support */
 #include "perf_event_intel_uncore.h"
 
+/* Uncore IMC PCI IDs */
+#define PCI_DEVICE_ID_INTEL_SNB_IMC     0x0100
+#define PCI_DEVICE_ID_INTEL_IVB_IMC     0x0154
+#define PCI_DEVICE_ID_INTEL_IVB_E3_IMC  0x0150
+#define PCI_DEVICE_ID_INTEL_HSW_IMC     0x0c00
+#define PCI_DEVICE_ID_INTEL_HSW_U_IMC   0x0a04
+
 /* SNB event control */
 #define SNB_UNC_CTL_EV_SEL_MASK                 0x000000ff
 #define SNB_UNC_CTL_UMASK_MASK                  0x0000ff00
@@ -472,6 +479,10 @@ static const struct pci_device_id hsw_uncore_pci_ids[] = {
                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HSW_IMC),
                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
         },
+        { /* IMC */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HSW_U_IMC),
+                .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
+        },
         { /* end: all zeroes */ },
 };
 
@@ -502,6 +513,7 @@ static const struct imc_uncore_pci_dev desktop_imc_pci_ids[] = {
         IMC_DEV(IVB_IMC, &ivb_uncore_pci_driver),    /* 3rd Gen Core processor */
         IMC_DEV(IVB_E3_IMC, &ivb_uncore_pci_driver), /* Xeon E3-1200 v2/3rd Gen Core processor */
         IMC_DEV(HSW_IMC, &hsw_uncore_pci_driver),    /* 4th Gen Core Processor */
+        IMC_DEV(HSW_U_IMC, &hsw_uncore_pci_driver),  /* 4th Gen Core ULT Mobile Processor */
         {  /* end marker */ }
 };
 
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 8213da62b1b7..6e338e3b1dc0 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -57,7 +57,7 @@ __visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, cpu_tss) = {
         .io_bitmap              = { [0 ... IO_BITMAP_LONGS] = ~0 },
 #endif
 };
-EXPORT_PER_CPU_SYMBOL_GPL(cpu_tss);
+EXPORT_PER_CPU_SYMBOL(cpu_tss);
 
 #ifdef CONFIG_X86_64
 static DEFINE_PER_CPU(unsigned char, is_idle);
@@ -156,11 +156,13 @@ void flush_thread(void)
                 /* FPU state will be reallocated lazily at the first use. */
                 drop_fpu(tsk);
                 free_thread_xstate(tsk);
-        } else if (!used_math()) {
-                /* kthread execs. TODO: cleanup this horror. */
-                if (WARN_ON(init_fpu(tsk)))
-                        force_sig(SIGKILL, tsk);
-                user_fpu_begin();
+        } else {
+                if (!tsk_used_math(tsk)) {
+                        /* kthread execs. TODO: cleanup this horror. */
+                        if (WARN_ON(init_fpu(tsk)))
+                                force_sig(SIGKILL, tsk);
+                        user_fpu_begin();
+                }
                 restore_init_xstate();
         }
 }
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index e5ecd20e72dd..2f355d229a58 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -141,46 +141,7 @@ void pvclock_read_wallclock(struct pvclock_wall_clock *wall_clock,
         set_normalized_timespec(ts, now.tv_sec, now.tv_nsec);
 }
 
-static struct pvclock_vsyscall_time_info *pvclock_vdso_info;
-
-static struct pvclock_vsyscall_time_info *
-pvclock_get_vsyscall_user_time_info(int cpu)
-{
-        if (!pvclock_vdso_info) {
-                BUG();
-                return NULL;
-        }
-
-        return &pvclock_vdso_info[cpu];
-}
-
-struct pvclock_vcpu_time_info *pvclock_get_vsyscall_time_info(int cpu)
-{
-        return &pvclock_get_vsyscall_user_time_info(cpu)->pvti;
-}
-
 #ifdef CONFIG_X86_64
-static int pvclock_task_migrate(struct notifier_block *nb, unsigned long l,
-                                void *v)
-{
-        struct task_migration_notifier *mn = v;
-        struct pvclock_vsyscall_time_info *pvti;
-
-        pvti = pvclock_get_vsyscall_user_time_info(mn->from_cpu);
-
-        /* this is NULL when pvclock vsyscall is not initialized */
-        if (unlikely(pvti == NULL))
-                return NOTIFY_DONE;
-
-        pvti->migrate_count++;
-
-        return NOTIFY_DONE;
-}
-
-static struct notifier_block pvclock_migrate = {
-        .notifier_call = pvclock_task_migrate,
-};
-
 /*
  * Initialize the generic pvclock vsyscall state.  This will allocate
  * a/some page(s) for the per-vcpu pvclock information, set up a
@@ -194,17 +155,12 @@ int __init pvclock_init_vsyscall(struct pvclock_vsyscall_time_info *i,
 
         WARN_ON (size != PVCLOCK_VSYSCALL_NR_PAGES*PAGE_SIZE);
 
-        pvclock_vdso_info = i;
-
         for (idx = 0; idx <= (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) {
                 __set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx,
                              __pa(i) + (idx*PAGE_SIZE),
                              PAGE_KERNEL_VVAR);
         }
 
-
-        register_task_migration_notifier(&pvclock_migrate);
-
         return 0;
 }
 #endif
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ed31c31b2485..c73efcd03e29 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1669,12 +1669,28 @@ static int kvm_guest_time_update(struct kvm_vcpu *v)
                 &guest_hv_clock, sizeof(guest_hv_clock))))
                 return 0;
 
-        /*
-         * The interface expects us to write an even number signaling that the
-         * update is finished. Since the guest won't see the intermediate
-         * state, we just increase by 2 at the end.
+        /* This VCPU is paused, but it's legal for a guest to read another
+         * VCPU's kvmclock, so we really have to follow the specification where
+         * it says that version is odd if data is being modified, and even after
+         * it is consistent.
+         *
+         * Version field updates must be kept separate.  This is because
+         * kvm_write_guest_cached might use a "rep movs" instruction, and
+         * writes within a string instruction are weakly ordered.  So there
+         * are three writes overall.
+         *
+         * As a small optimization, only write the version field in the first
+         * and third write.  The vcpu->pv_time cache is still valid, because the
+         * version field is the first in the struct.
          */
-        vcpu->hv_clock.version = guest_hv_clock.version + 2;
+        BUILD_BUG_ON(offsetof(struct pvclock_vcpu_time_info, version) != 0);
+
+        vcpu->hv_clock.version = guest_hv_clock.version + 1;
+        kvm_write_guest_cached(v->kvm, &vcpu->pv_time,
+                                &vcpu->hv_clock,
+                                sizeof(vcpu->hv_clock.version));
+
+        smp_wmb();
 
         /* retain PVCLOCK_GUEST_STOPPED if set in guest copy */
         pvclock_flags = (guest_hv_clock.flags & PVCLOCK_GUEST_STOPPED);
@@ -1695,6 +1711,13 @@ static int kvm_guest_time_update(struct kvm_vcpu *v)
         kvm_write_guest_cached(v->kvm, &vcpu->pv_time,
                                 &vcpu->hv_clock,
                                 sizeof(vcpu->hv_clock));
+
+        smp_wmb();
+
+        vcpu->hv_clock.version++;
+        kvm_write_guest_cached(v->kvm, &vcpu->pv_time,
+                                &vcpu->hv_clock,
+                                sizeof(vcpu->hv_clock.version));
         return 0;
 }
 
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 5ead4d6cf3a7..70e7444c6835 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -351,18 +351,20 @@ int arch_ioremap_pmd_supported(void)
  */
 void *xlate_dev_mem_ptr(phys_addr_t phys)
 {
-        void *addr;
-        unsigned long start = phys & PAGE_MASK;
+        unsigned long start  = phys &  PAGE_MASK;
+        unsigned long offset = phys & ~PAGE_MASK;
+        unsigned long vaddr;
 
         /* If page is RAM, we can use __va. Otherwise ioremap and unmap. */
         if (page_is_ram(start >> PAGE_SHIFT))
                 return __va(phys);
 
-        addr = (void __force *)ioremap_cache(start, PAGE_SIZE);
-        if (addr)
-                addr = (void *)((unsigned long)addr | (phys & ~PAGE_MASK));
+        vaddr = (unsigned long)ioremap_cache(start, PAGE_SIZE);
+        /* Only add the offset on success and return NULL if the ioremap() failed: */
+        if (vaddr)
+                vaddr += offset;
 
-        return addr;
+        return (void *)vaddr;
 }
 
 void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr)
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index e4695985f9de..d93963340c3c 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -325,6 +325,26 @@ static void release_pci_root_info(struct pci_host_bridge *bridge)
         kfree(info);
 }
 
+/*
+ * An IO port or MMIO resource assigned to a PCI host bridge may be
+ * consumed by the host bridge itself or available to its child
+ * bus/devices. The ACPI specification defines a bit (Producer/Consumer)
+ * to tell whether the resource is consumed by the host bridge itself,
+ * but firmware hasn't used that bit consistently, so we can't rely on it.
+ *
+ * On x86 and IA64 platforms, all IO port and MMIO resources are assumed
+ * to be available to child bus/devices except one special case:
+ *     IO port [0xCF8-0xCFF] is consumed by the host bridge itself
+ *     to access PCI configuration space.
+ *
+ * So explicitly filter out PCI CFG IO ports[0xCF8-0xCFF].
+ */
+static bool resource_is_pcicfg_ioport(struct resource *res)
+{
+        return (res->flags & IORESOURCE_IO) &&
+                res->start == 0xCF8 && res->end == 0xCFF;
+}
+
 static void probe_pci_root_info(struct pci_root_info *info,
                                 struct acpi_device *device,
                                 int busnum, int domain,
@@ -346,8 +366,8 @@ static void probe_pci_root_info(struct pci_root_info *info,
                         "no IO and memory resources present in _CRS\n");
         else
                 resource_list_for_each_entry_safe(entry, tmp, list) {
-                        if ((entry->res->flags & IORESOURCE_WINDOW) == 0 ||
-                            (entry->res->flags & IORESOURCE_DISABLED))
+                        if ((entry->res->flags & IORESOURCE_DISABLED) ||
+                            resource_is_pcicfg_ioport(entry->res))
                                 resource_list_destroy_entry(entry);
                         else
                                 entry->res->name = info->name;
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index 40d2473836c9..9793322751e0 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -82,15 +82,18 @@ static notrace cycle_t vread_pvclock(int *mode)
         cycle_t ret;
         u64 last;
         u32 version;
-        u32 migrate_count;
         u8 flags;
         unsigned cpu, cpu1;
 
 
         /*
-         * When looping to get a consistent (time-info, tsc) pair, we
-         * also need to deal with the possibility we can switch vcpus,
-         * so make sure we always re-fetch time-info for the current vcpu.
+         * Note: hypervisor must guarantee that:
+         * 1. cpu ID number maps 1:1 to per-CPU pvclock time info.
+         * 2. that per-CPU pvclock time info is updated if the
+         *    underlying CPU changes.
+         * 3. that version is increased whenever underlying CPU
+         *    changes.
+         *
          */
         do {
                 cpu = __getcpu() & VGETCPU_CPU_MASK;
@@ -99,27 +102,20 @@ static notrace cycle_t vread_pvclock(int *mode)
                  * __getcpu() calls (Gleb).
                  */
 
-                /* Make sure migrate_count will change if we leave the VCPU. */
-                do {
-                        pvti = get_pvti(cpu);
-                        migrate_count = pvti->migrate_count;
-
-                        cpu1 = cpu;
-                        cpu = __getcpu() & VGETCPU_CPU_MASK;
-                } while (unlikely(cpu != cpu1));
+                pvti = get_pvti(cpu);
 
                 version = __pvclock_read_cycles(&pvti->pvti, &ret, &flags);
 
                 /*
                  * Test we're still on the cpu as well as the version.
-                 * - We must read TSC of pvti's VCPU.
-                 * - KVM doesn't follow the versioning protocol, so data could
-                 *   change before version if we left the VCPU.
+                 * We could have been migrated just after the first
+                 * vgetcpu but before fetching the version, so we
+                 * wouldn't notice a version change.
                  */
-                smp_rmb();
-        } while (unlikely((pvti->pvti.version & 1) ||
-                          pvti->pvti.version != version ||
-                          pvti->migrate_count != migrate_count));
+                cpu1 = __getcpu() & VGETCPU_CPU_MASK;
+        } while (unlikely(cpu != cpu1 ||
+                          (pvti->pvti.version & 1) ||
+                          pvti->pvti.version != version));
 
         if (unlikely(!(flags & PVCLOCK_TSC_STABLE_BIT)))
                 *mode = VCLOCK_NONE;
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 94578efd3067..46957ead3060 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1760,6 +1760,9 @@ static struct notifier_block xen_hvm_cpu_notifier = {
 
 static void __init xen_hvm_guest_init(void)
 {
+        if (xen_pv_domain())
+                return;
+
         init_hvm_pv_info();
 
         xen_hvm_init_shared_info();
@@ -1775,6 +1778,7 @@ static void __init xen_hvm_guest_init(void)
         xen_hvm_init_time_ops();
         xen_hvm_init_mmu_ops();
 }
+#endif
 
 static bool xen_nopv = false;
 static __init int xen_parse_nopv(char *arg)
@@ -1784,14 +1788,11 @@ static __init int xen_parse_nopv(char *arg)
 }
 early_param("xen_nopv", xen_parse_nopv);
 
-static uint32_t __init xen_hvm_platform(void)
+static uint32_t __init xen_platform(void)
 {
         if (xen_nopv)
                 return 0;
 
-        if (xen_pv_domain())
-                return 0;
-
         return xen_cpuid_base();
 }
 
@@ -1809,11 +1810,19 @@ bool xen_hvm_need_lapic(void)
 }
 EXPORT_SYMBOL_GPL(xen_hvm_need_lapic);
 
-const struct hypervisor_x86 x86_hyper_xen_hvm __refconst = {
-        .name                   = "Xen HVM",
-        .detect                 = xen_hvm_platform,
+static void xen_set_cpu_features(struct cpuinfo_x86 *c)
+{
+        if (xen_pv_domain())
+                clear_cpu_bug(c, X86_BUG_SYSRET_SS_ATTRS);
+}
+
+const struct hypervisor_x86 x86_hyper_xen = {
+        .name                   = "Xen",
+        .detect                 = xen_platform,
+#ifdef CONFIG_XEN_PVHVM
         .init_platform          = xen_hvm_guest_init,
+#endif
         .x2apic_available       = xen_x2apic_para_available,
+        .set_cpu_features       = xen_set_cpu_features,
 };
-EXPORT_SYMBOL(x86_hyper_xen_hvm);
-#endif
+EXPORT_SYMBOL(x86_hyper_xen);
diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c
index d9497698645a..53b4c0811f4f 100644
--- a/arch/x86/xen/suspend.c
+++ b/arch/x86/xen/suspend.c
@@ -88,7 +88,17 @@ static void xen_vcpu_notify_restore(void *data)
         tick_resume_local();
 }
 
+static void xen_vcpu_notify_suspend(void *data)
+{
+        tick_suspend_local();
+}
+
 void xen_arch_resume(void)
 {
         on_each_cpu(xen_vcpu_notify_restore, NULL, 1);
 }
+
+void xen_arch_suspend(void)
+{
+        on_each_cpu(xen_vcpu_notify_suspend, NULL, 1);
+}
diff --git a/block/blk-core.c b/block/blk-core.c
index fd154b94447a..7871603f0a29 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -552,6 +552,8 @@ void blk_cleanup_queue(struct request_queue *q)
                 q->queue_lock = &q->__queue_lock;
         spin_unlock_irq(lock);
 
+        bdi_destroy(&q->backing_dev_info);
+
         /* @q is and will stay empty, shutdown and put */
         blk_put_queue(q);
 }
diff --git a/block/blk-mq.c b/block/blk-mq.c
index ade8a2d1b0aa..e68b71b85a7e 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -677,8 +677,11 @@ static void blk_mq_rq_timer(unsigned long priv)
                 data.next = blk_rq_timeout(round_jiffies_up(data.next));
                 mod_timer(&q->timeout, data.next);
         } else {
-                queue_for_each_hw_ctx(q, hctx, i)
-                        blk_mq_tag_idle(hctx);
+                queue_for_each_hw_ctx(q, hctx, i) {
+                        /* the hctx may be unmapped, so check it here */
+                        if (blk_mq_hw_queue_mapped(hctx))
+                                blk_mq_tag_idle(hctx);
+                }
         }
 }
 
@@ -855,6 +858,16 @@ static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx)
                 spin_lock(&hctx->lock);
                 list_splice(&rq_list, &hctx->dispatch);
                 spin_unlock(&hctx->lock);
+                /*
+                 * the queue is expected stopped with BLK_MQ_RQ_QUEUE_BUSY, but
+                 * it's possible the queue is stopped and restarted again
+                 * before this. Queue restart will dispatch requests. And since
+                 * requests in rq_list aren't added into hctx->dispatch yet,
+                 * the requests in rq_list might get lost.
+                 *
+                 * blk_mq_run_hw_queue() already checks the STOPPED bit
+                 **/
+                blk_mq_run_hw_queue(hctx, true);
         }
 }
 
@@ -1571,22 +1584,6 @@ static int blk_mq_hctx_cpu_offline(struct blk_mq_hw_ctx *hctx, int cpu)
         return NOTIFY_OK;
 }
 
-static int blk_mq_hctx_cpu_online(struct blk_mq_hw_ctx *hctx, int cpu)
-{
-        struct request_queue *q = hctx->queue;
-        struct blk_mq_tag_set *set = q->tag_set;
-
-        if (set->tags[hctx->queue_num])
-                return NOTIFY_OK;
-
-        set->tags[hctx->queue_num] = blk_mq_init_rq_map(set, hctx->queue_num);
-        if (!set->tags[hctx->queue_num])
-                return NOTIFY_STOP;
-
-        hctx->tags = set->tags[hctx->queue_num];
-        return NOTIFY_OK;
-}
-
 static int blk_mq_hctx_notify(void *data, unsigned long action,
                               unsigned int cpu)
 {
@@ -1594,8 +1591,11 @@ static int blk_mq_hctx_notify(void *data, unsigned long action,
 
         if (action == CPU_DEAD || action == CPU_DEAD_FROZEN)
                 return blk_mq_hctx_cpu_offline(hctx, cpu);
-        else if (action == CPU_ONLINE || action == CPU_ONLINE_FROZEN)
-                return blk_mq_hctx_cpu_online(hctx, cpu);
+
+        /*
+         * In case of CPU online, tags may be reallocated
+         * in blk_mq_map_swqueue() after mapping is updated.
+         */
 
         return NOTIFY_OK;
 }
@@ -1775,6 +1775,7 @@ static void blk_mq_map_swqueue(struct request_queue *q)
         unsigned int i;
         struct blk_mq_hw_ctx *hctx;
         struct blk_mq_ctx *ctx;
+        struct blk_mq_tag_set *set = q->tag_set;
 
         queue_for_each_hw_ctx(q, hctx, i) {
                 cpumask_clear(hctx->cpumask);
@@ -1803,16 +1804,20 @@ static void blk_mq_map_swqueue(struct request_queue *q)
                  * disable it and free the request entries.
                  */
                 if (!hctx->nr_ctx) {
-                        struct blk_mq_tag_set *set = q->tag_set;
-
                         if (set->tags[i]) {
                                 blk_mq_free_rq_map(set, set->tags[i], i);
                                 set->tags[i] = NULL;
-                                hctx->tags = NULL;
                         }
+                        hctx->tags = NULL;
                         continue;
                 }
 
+                /* unmapped hw queue can be remapped after CPU topo changed */
+                if (!set->tags[i])
+                        set->tags[i] = blk_mq_init_rq_map(set, i);
+                hctx->tags = set->tags[i];
+                WARN_ON(!hctx->tags);
+
                 /*
                  * Set the map size to the number of mapped software queues.
                  * This is more accurate and more efficient than looping
@@ -2090,9 +2095,16 @@ static int blk_mq_queue_reinit_notify(struct notifier_block *nb,
          */
         list_for_each_entry(q, &all_q_list, all_q_node)
                 blk_mq_freeze_queue_start(q);
-        list_for_each_entry(q, &all_q_list, all_q_node)
+        list_for_each_entry(q, &all_q_list, all_q_node) {
                 blk_mq_freeze_queue_wait(q);
 
+                /*
+                 * timeout handler can't touch hw queue during the
+                 * reinitialization
+                 */
+                del_timer_sync(&q->timeout);
+        }
+
         list_for_each_entry(q, &all_q_list, all_q_node)
                 blk_mq_queue_reinit(q);
 
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index faaf36ade7eb..2b8fd302f677 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -522,8 +522,6 @@ static void blk_release_queue(struct kobject *kobj)
 
         blk_trace_shutdown(q);
 
-        bdi_destroy(&q->backing_dev_info);
-
         ida_simple_remove(&blk_queue_ida, q->id);
         call_rcu(&q->rcu_head, blk_free_queue_rcu);
 }
diff --git a/block/bounce.c b/block/bounce.c
index ab21ba203d5c..ed9dd8067120 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -221,8 +221,8 @@ bounce:
                 if (page_to_pfn(page) <= queue_bounce_pfn(q) && !force)
                         continue;
 
-                inc_zone_page_state(to->bv_page, NR_BOUNCE);
                 to->bv_page = mempool_alloc(pool, q->bounce_gfp);
+                inc_zone_page_state(to->bv_page, NR_BOUNCE);
 
                 if (rw == WRITE) {
                         char *vto, *vfrom;
diff --git a/block/elevator.c b/block/elevator.c
index 59794d0d38e3..8985038f398c 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -157,7 +157,7 @@ struct elevator_queue *elevator_alloc(struct request_queue *q,
 
         eq = kzalloc_node(sizeof(*eq), GFP_KERNEL, q->node);
         if (unlikely(!eq))
-                goto err;
+                return NULL;
 
         eq->type = e;
         kobject_init(&eq->kobj, &elv_ktype);
@@ -165,10 +165,6 @@ struct elevator_queue *elevator_alloc(struct request_queue *q,
         hash_init(eq->hash);
 
         return eq;
-err:
-        kfree(eq);
-        elevator_put(e);
-        return NULL;
 }
 EXPORT_SYMBOL(elevator_alloc);
 
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index b193f8425999..ff6d8adc9cda 100644
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -304,6 +304,8 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = {
         {"PNPb006"},
         /* cs423x-pnpbios */
         {"CSC0100"},
+        {"CSC0103"},
+        {"CSC0110"},
         {"CSC0000"},
         {"GIM0100"},            /* Guillemot Turtlebeach something appears to be cs4232 compatible */
         /* es18xx-pnpbios */
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 5589a6e2a023..8244f013f210 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -573,7 +573,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_get_resources);
  * @ares: Input ACPI resource object.
  * @types: Valid resource types of IORESOURCE_XXX
  *
- * This is a hepler function to support acpi_dev_get_resources(), which filters
+ * This is a helper function to support acpi_dev_get_resources(), which filters
  * ACPI resource objects according to resource types.
  */
 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index cd827625cf07..01504c819e8f 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -684,7 +684,7 @@ static int acpi_sbs_add(struct acpi_device *device)
         if (!sbs_manager_broken) {
                 result = acpi_manager_get_info(sbs);
                 if (!result) {
-                        sbs->manager_present = 0;
+                        sbs->manager_present = 1;
                         for (id = 0; id < MAX_SBS_BAT; ++id)
                                 if ((sbs->batteries_supported & (1 << id)))
                                         acpi_battery_add(sbs, id);
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index 26e5b5060523..bf034f8b7c1a 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -14,6 +14,7 @@
 #include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
+#include <linux/dmi.h>
 #include "sbshc.h"
 
 #define PREFIX "ACPI: "
@@ -87,6 +88,8 @@ enum acpi_smb_offset {
         ACPI_SMB_ALARM_DATA = 0x26,     /* 2 bytes alarm data */
 };
 
+static bool macbook;
+
 static inline int smb_hc_read(struct acpi_smb_hc *hc, u8 address, u8 *data)
 {
         return ec_read(hc->offset + address, data);
@@ -132,6 +135,8 @@ static int acpi_smbus_transaction(struct acpi_smb_hc *hc, u8 protocol,
         }
 
         mutex_lock(&hc->lock);
+        if (macbook)
+                udelay(5);
         if (smb_hc_read(hc, ACPI_SMB_PROTOCOL, &temp))
                 goto end;
         if (temp) {
@@ -257,12 +262,29 @@ extern int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
                               acpi_handle handle, acpi_ec_query_func func,
                               void *data);
 
+static int macbook_dmi_match(const struct dmi_system_id *d)
+{
+        pr_debug("Detected MacBook, enabling workaround\n");
+        macbook = true;
+        return 0;
+}
+
+static struct dmi_system_id acpi_smbus_dmi_table[] = {
+        { macbook_dmi_match, "Apple MacBook", {
+          DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+          DMI_MATCH(DMI_PRODUCT_NAME, "MacBook") },
+        },
+        { },
+};
+
 static int acpi_smbus_hc_add(struct acpi_device *device)
 {
         int status;
         unsigned long long val;
         struct acpi_smb_hc *hc;
 
+        dmi_check_system(acpi_smbus_dmi_table);
+
         if (!device)
                 return -EINVAL;
 
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 5f601553b9b0..9dca4b995be0 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -270,6 +270,7 @@ config ATA_PIIX
 config SATA_DWC
         tristate "DesignWare Cores SATA support"
         depends on 460EX
+        select DW_DMAC
         help
           This option enables support for the on-chip SATA controller of the
           AppliedMicro processor 460EX.
@@ -729,15 +730,6 @@ config PATA_SC1200
 
           If unsure, say N.
 
-config PATA_SCC
-        tristate "Toshiba's Cell Reference Set IDE support"
-        depends on PCI && PPC_CELLEB
-        help
-          This option enables support for the built-in IDE controller on
-          Toshiba Cell Reference Board.
-
-          If unsure, say N.
-
 config PATA_SCH
         tristate "Intel SCH PATA support"
         depends on PCI
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index b67e995179a9..40f7865f20a1 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -75,7 +75,6 @@ obj-$(CONFIG_PATA_PDC_OLD)	+= pata_pdc202xx_old.o
 obj-$(CONFIG_PATA_RADISYS)      += pata_radisys.o
 obj-$(CONFIG_PATA_RDC)          += pata_rdc.o
 obj-$(CONFIG_PATA_SC1200)       += pata_sc1200.o
-obj-$(CONFIG_PATA_SCC)          += pata_scc.o
 obj-$(CONFIG_PATA_SCH)          += pata_sch.o
 obj-$(CONFIG_PATA_SERVERWORKS)  += pata_serverworks.o
 obj-$(CONFIG_PATA_SIL680)       += pata_sil680.o
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index c7a92a743ed0..65ee94454bbd 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -66,6 +66,7 @@ enum board_ids {
         board_ahci_yes_fbs,
 
         /* board IDs for specific chipsets in alphabetical order */
+        board_ahci_avn,
         board_ahci_mcp65,
         board_ahci_mcp77,
         board_ahci_mcp89,
@@ -84,6 +85,8 @@ enum board_ids {
 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
 static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
                                  unsigned long deadline);
+static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
+                              unsigned long deadline);
 static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
 static bool is_mcp89_apple(struct pci_dev *pdev);
 static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
@@ -107,6 +110,11 @@ static struct ata_port_operations ahci_p5wdh_ops = {
         .hardreset              = ahci_p5wdh_hardreset,
 };
 
+static struct ata_port_operations ahci_avn_ops = {
+        .inherits               = &ahci_ops,
+        .hardreset              = ahci_avn_hardreset,
+};
+
 static const struct ata_port_info ahci_port_info[] = {
         /* by features */
         [board_ahci] = {
@@ -151,6 +159,12 @@ static const struct ata_port_info ahci_port_info[] = {
                 .port_ops       = &ahci_ops,
         },
         /* by chipsets */
+        [board_ahci_avn] = {
+                .flags          = AHCI_FLAG_COMMON,
+                .pio_mask       = ATA_PIO4,
+                .udma_mask      = ATA_UDMA6,
+                .port_ops       = &ahci_avn_ops,
+        },
         [board_ahci_mcp65] = {
                 AHCI_HFLAGS     (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
                                  AHCI_HFLAG_YES_NCQ),
@@ -290,14 +304,14 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         { PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
         { PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
         { PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
-        { PCI_VDEVICE(INTEL, 0x1f32), board_ahci }, /* Avoton AHCI */
-        { PCI_VDEVICE(INTEL, 0x1f33), board_ahci }, /* Avoton AHCI */
-        { PCI_VDEVICE(INTEL, 0x1f34), board_ahci }, /* Avoton RAID */
-        { PCI_VDEVICE(INTEL, 0x1f35), board_ahci }, /* Avoton RAID */
-        { PCI_VDEVICE(INTEL, 0x1f36), board_ahci }, /* Avoton RAID */
-        { PCI_VDEVICE(INTEL, 0x1f37), board_ahci }, /* Avoton RAID */
-        { PCI_VDEVICE(INTEL, 0x1f3e), board_ahci }, /* Avoton RAID */
-        { PCI_VDEVICE(INTEL, 0x1f3f), board_ahci }, /* Avoton RAID */
+        { PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
+        { PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
+        { PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
+        { PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
+        { PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
+        { PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
+        { PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
+        { PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
         { PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg RAID */
         { PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg RAID */
         { PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
@@ -670,6 +684,79 @@ static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
         return rc;
 }
 
+/*
+ * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
+ *
+ * It has been observed with some SSDs that the timing of events in the
+ * link synchronization phase can leave the port in a state that can not
+ * be recovered by a SATA-hard-reset alone.  The failing signature is
+ * SStatus.DET stuck at 1 ("Device presence detected but Phy
+ * communication not established").  It was found that unloading and
+ * reloading the driver when this problem occurs allows the drive
+ * connection to be recovered (DET advanced to 0x3).  The critical
+ * component of reloading the driver is that the port state machines are
+ * reset by bouncing "port enable" in the AHCI PCS configuration
+ * register.  So, reproduce that effect by bouncing a port whenever we
+ * see DET==1 after a reset.
+ */
+static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
+                              unsigned long deadline)
+{
+        const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
+        struct ata_port *ap = link->ap;
+        struct ahci_port_priv *pp = ap->private_data;
+        struct ahci_host_priv *hpriv = ap->host->private_data;
+        u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
+        unsigned long tmo = deadline - jiffies;
+        struct ata_taskfile tf;
+        bool online;
+        int rc, i;
+
+        DPRINTK("ENTER\n");
+
+        ahci_stop_engine(ap);
+
+        for (i = 0; i < 2; i++) {
+                u16 val;
+                u32 sstatus;
+                int port = ap->port_no;
+                struct ata_host *host = ap->host;
+                struct pci_dev *pdev = to_pci_dev(host->dev);
+
+                /* clear D2H reception area to properly wait for D2H FIS */
+                ata_tf_init(link->device, &tf);
+                tf.command = ATA_BUSY;
+                ata_tf_to_fis(&tf, 0, 0, d2h_fis);
+
+                rc = sata_link_hardreset(link, timing, deadline, &online,
+                                ahci_check_ready);
+
+                if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
+                                (sstatus & 0xf) != 1)
+                        break;
+
+                ata_link_printk(link, KERN_INFO, "avn bounce port%d\n",
+                                port);
+
+                pci_read_config_word(pdev, 0x92, &val);
+                val &= ~(1 << port);
+                pci_write_config_word(pdev, 0x92, val);
+                ata_msleep(ap, 1000);
+                val |= 1 << port;
+                pci_write_config_word(pdev, 0x92, val);
+                deadline += tmo;
+        }
+
+        hpriv->start_engine(ap);
+
+        if (online)
+                *class = ahci_dev_classify(ap);
+
+        DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
+        return rc;
+}
+
+
 #ifdef CONFIG_PM
 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
 {
diff --git a/drivers/ata/ahci_st.c b/drivers/ata/ahci_st.c
index ea0ff005b86c..8ff428fe8e0f 100644
--- a/drivers/ata/ahci_st.c
+++ b/drivers/ata/ahci_st.c
@@ -37,7 +37,6 @@ struct st_ahci_drv_data {
         struct reset_control *pwr;
         struct reset_control *sw_rst;
         struct reset_control *pwr_rst;
-        struct ahci_host_priv *hpriv;
 };
 
 static void st_ahci_configure_oob(void __iomem *mmio)
@@ -55,9 +54,10 @@ static void st_ahci_configure_oob(void __iomem *mmio)
         writel(new_val, mmio + ST_AHCI_OOBR);
 }
 
-static int st_ahci_deassert_resets(struct device *dev)
+static int st_ahci_deassert_resets(struct ahci_host_priv *hpriv,
+                                struct device *dev)
 {
-        struct st_ahci_drv_data *drv_data = dev_get_drvdata(dev);
+        struct st_ahci_drv_data *drv_data = hpriv->plat_data;
         int err;
 
         if (drv_data->pwr) {
@@ -90,8 +90,8 @@ static int st_ahci_deassert_resets(struct device *dev)
 static void st_ahci_host_stop(struct ata_host *host)
 {
         struct ahci_host_priv *hpriv = host->private_data;
+        struct st_ahci_drv_data *drv_data = hpriv->plat_data;
         struct device *dev = host->dev;
-        struct st_ahci_drv_data *drv_data = dev_get_drvdata(dev);
         int err;
 
         if (drv_data->pwr) {
@@ -103,29 +103,30 @@ static void st_ahci_host_stop(struct ata_host *host)
         ahci_platform_disable_resources(hpriv);
 }
 
-static int st_ahci_probe_resets(struct platform_device *pdev)
+static int st_ahci_probe_resets(struct ahci_host_priv *hpriv,
+                                struct device *dev)
 {
-        struct st_ahci_drv_data *drv_data = platform_get_drvdata(pdev);
+        struct st_ahci_drv_data *drv_data = hpriv->plat_data;
 
-        drv_data->pwr = devm_reset_control_get(&pdev->dev, "pwr-dwn");
+        drv_data->pwr = devm_reset_control_get(dev, "pwr-dwn");
         if (IS_ERR(drv_data->pwr)) {
-                dev_info(&pdev->dev, "power reset control not defined\n");
+                dev_info(dev, "power reset control not defined\n");
                 drv_data->pwr = NULL;
         }
 
-        drv_data->sw_rst = devm_reset_control_get(&pdev->dev, "sw-rst");
+        drv_data->sw_rst = devm_reset_control_get(dev, "sw-rst");
         if (IS_ERR(drv_data->sw_rst)) {
-                dev_info(&pdev->dev, "soft reset control not defined\n");
+                dev_info(dev, "soft reset control not defined\n");
                 drv_data->sw_rst = NULL;
         }
 
-        drv_data->pwr_rst = devm_reset_control_get(&pdev->dev, "pwr-rst");
+        drv_data->pwr_rst = devm_reset_control_get(dev, "pwr-rst");
         if (IS_ERR(drv_data->pwr_rst)) {
-                dev_dbg(&pdev->dev, "power soft reset control not defined\n");
+                dev_dbg(dev, "power soft reset control not defined\n");
                 drv_data->pwr_rst = NULL;
         }
 
-        return st_ahci_deassert_resets(&pdev->dev);
+        return st_ahci_deassert_resets(hpriv, dev);
 }
 
 static struct ata_port_operations st_ahci_port_ops = {
@@ -154,15 +155,12 @@ static int st_ahci_probe(struct platform_device *pdev)
         if (!drv_data)
                 return -ENOMEM;
 
-        platform_set_drvdata(pdev, drv_data);
-
         hpriv = ahci_platform_get_resources(pdev);
         if (IS_ERR(hpriv))
                 return PTR_ERR(hpriv);
+        hpriv->plat_data = drv_data;
 
-        drv_data->hpriv = hpriv;
-
-        err = st_ahci_probe_resets(pdev);
+        err = st_ahci_probe_resets(hpriv, &pdev->dev);
         if (err)
                 return err;
 
@@ -170,7 +168,7 @@ static int st_ahci_probe(struct platform_device *pdev)
         if (err)
                 return err;
 
-        st_ahci_configure_oob(drv_data->hpriv->mmio);
+        st_ahci_configure_oob(hpriv->mmio);
 
         err = ahci_platform_init_host(pdev, hpriv, &st_ahci_port_info,
                                       &ahci_platform_sht);
@@ -185,8 +183,9 @@ static int st_ahci_probe(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int st_ahci_suspend(struct device *dev)
 {
-        struct st_ahci_drv_data *drv_data = dev_get_drvdata(dev);
-        struct ahci_host_priv *hpriv = drv_data->hpriv;
+        struct ata_host *host = dev_get_drvdata(dev);
+        struct ahci_host_priv *hpriv = host->private_data;
+        struct st_ahci_drv_data *drv_data = hpriv->plat_data;
         int err;
 
         err = ahci_platform_suspend_host(dev);
@@ -208,21 +207,21 @@ static int st_ahci_suspend(struct device *dev)
 
 static int st_ahci_resume(struct device *dev)
 {
-        struct st_ahci_drv_data *drv_data = dev_get_drvdata(dev);
-        struct ahci_host_priv *hpriv = drv_data->hpriv;
+        struct ata_host *host = dev_get_drvdata(dev);
+        struct ahci_host_priv *hpriv = host->private_data;
         int err;
 
         err = ahci_platform_enable_resources(hpriv);
         if (err)
                 return err;
 
-        err = st_ahci_deassert_resets(dev);
+        err = st_ahci_deassert_resets(hpriv, dev);
         if (err) {
                 ahci_platform_disable_resources(hpriv);
                 return err;
         }
 
-        st_ahci_configure_oob(drv_data->hpriv->mmio);
+        st_ahci_configure_oob(hpriv->mmio);
 
         return ahci_platform_resume_host(dev);
 }
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 61a9c07e0dff..287c4ba0219f 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -1707,8 +1707,7 @@ static void ahci_handle_port_interrupt(struct ata_port *ap,
         if (unlikely(resetting))
                 status &= ~PORT_IRQ_BAD_PMP;
 
-        /* if LPM is enabled, PHYRDY doesn't mean anything */
-        if (ap->link.lpm_policy > ATA_LPM_MAX_POWER) {
+        if (sata_lpm_ignore_phy_events(&ap->link)) {
                 status &= ~PORT_IRQ_PHYRDY;
                 ahci_scr_write(&ap->link, SCR_ERROR, SERR_PHYRDY_CHG);
         }
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index f6cb1f1b30b7..577849c6611a 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4235,7 +4235,7 @@ 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 850 PRO*",       NULL,   ATA_HORKAGE_NO_NCQ_TRIM |
+        { "Samsung SSD 8*",             NULL,   ATA_HORKAGE_NO_NCQ_TRIM |
                                                 ATA_HORKAGE_ZERO_AFTER_TRIM, },
 
         /*
@@ -6752,6 +6752,38 @@ u32 ata_wait_register(struct ata_port *ap, void __iomem *reg, u32 mask, u32 val,
         return tmp;
 }
 
+/**
+ *      sata_lpm_ignore_phy_events - test if PHY event should be ignored
+ *      @link: Link receiving the event
+ *
+ *      Test whether the received PHY event has to be ignored or not.
+ *
+ *      LOCKING:
+ *      None:
+ *
+ *      RETURNS:
+ *      True if the event has to be ignored.
+ */
+bool sata_lpm_ignore_phy_events(struct ata_link *link)
+{
+        unsigned long lpm_timeout = link->last_lpm_change +
+                                    msecs_to_jiffies(ATA_TMOUT_SPURIOUS_PHY);
+
+        /* if LPM is enabled, PHYRDY doesn't mean anything */
+        if (link->lpm_policy > ATA_LPM_MAX_POWER)
+                return true;
+
+        /* ignore the first PHY event after the LPM policy changed
+         * as it is might be spurious
+         */
+        if ((link->flags & ATA_LFLAG_CHANGED) &&
+            time_before(jiffies, lpm_timeout))
+                return true;
+
+        return false;
+}
+EXPORT_SYMBOL_GPL(sata_lpm_ignore_phy_events);
+
 /*
  * Dummy port_ops
  */
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 07f41be38fbe..cf0022ec07f2 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -3597,6 +3597,9 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
                 }
         }
 
+        link->last_lpm_change = jiffies;
+        link->flags |= ATA_LFLAG_CHANGED;
+
         return 0;
 
 fail:
diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c
deleted file mode 100644
index 5cd60d6388ec..000000000000
--- a/drivers/ata/pata_scc.c
+++ /dev/null
@@ -1,1110 +0,0 @@
-/*
- * Support for IDE interfaces on Celleb platform
- *
- * (C) Copyright 2006 TOSHIBA CORPORATION
- *
- * This code is based on drivers/ata/ata_piix.c:
- *  Copyright 2003-2005 Red Hat Inc
- *  Copyright 2003-2005 Jeff Garzik
- *  Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer
- *  Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
- *  Copyright (C) 2003 Red Hat Inc
- *
- * and drivers/ata/ahci.c:
- *  Copyright 2004-2005 Red Hat, Inc.
- *
- * and drivers/ata/libata-core.c:
- *  Copyright 2003-2004 Red Hat, Inc.  All rights reserved.
- *  Copyright 2003-2004 Jeff Garzik
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/blkdev.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <scsi/scsi_host.h>
-#include <linux/libata.h>
-
-#define DRV_NAME                "pata_scc"
-#define DRV_VERSION             "0.3"
-
-#define PCI_DEVICE_ID_TOSHIBA_SCC_ATA           0x01b4
-
-/* PCI BARs */
-#define SCC_CTRL_BAR            0
-#define SCC_BMID_BAR            1
-
-/* offset of CTRL registers */
-#define SCC_CTL_PIOSHT          0x000
-#define SCC_CTL_PIOCT           0x004
-#define SCC_CTL_MDMACT          0x008
-#define SCC_CTL_MCRCST          0x00C
-#define SCC_CTL_SDMACT          0x010
-#define SCC_CTL_SCRCST          0x014
-#define SCC_CTL_UDENVT          0x018
-#define SCC_CTL_TDVHSEL         0x020
-#define SCC_CTL_MODEREG         0x024
-#define SCC_CTL_ECMODE          0xF00
-#define SCC_CTL_MAEA0           0xF50
-#define SCC_CTL_MAEC0           0xF54
-#define SCC_CTL_CCKCTRL         0xFF0
-
-/* offset of BMID registers */
-#define SCC_DMA_CMD             0x000
-#define SCC_DMA_STATUS          0x004
-#define SCC_DMA_TABLE_OFS       0x008
-#define SCC_DMA_INTMASK         0x010
-#define SCC_DMA_INTST           0x014
-#define SCC_DMA_PTERADD         0x018
-#define SCC_REG_CMD_ADDR        0x020
-#define SCC_REG_DATA            0x000
-#define SCC_REG_ERR             0x004
-#define SCC_REG_FEATURE         0x004
-#define SCC_REG_NSECT           0x008
-#define SCC_REG_LBAL            0x00C
-#define SCC_REG_LBAM            0x010
-#define SCC_REG_LBAH            0x014
-#define SCC_REG_DEVICE          0x018
-#define SCC_REG_STATUS          0x01C
-#define SCC_REG_CMD             0x01C
-#define SCC_REG_ALTSTATUS       0x020
-
-/* register value */
-#define TDVHSEL_MASTER          0x00000001
-#define TDVHSEL_SLAVE           0x00000004
-
-#define MODE_JCUSFEN            0x00000080
-
-#define ECMODE_VALUE            0x01
-
-#define CCKCTRL_ATARESET        0x00040000
-#define CCKCTRL_BUFCNT          0x00020000
-#define CCKCTRL_CRST            0x00010000
-#define CCKCTRL_OCLKEN          0x00000100
-#define CCKCTRL_ATACLKOEN       0x00000002
-#define CCKCTRL_LCLKEN          0x00000001
-
-#define QCHCD_IOS_SS            0x00000001
-
-#define QCHSD_STPDIAG           0x00020000
-
-#define INTMASK_MSK             0xD1000012
-#define INTSTS_SERROR           0x80000000
-#define INTSTS_PRERR            0x40000000
-#define INTSTS_RERR             0x10000000
-#define INTSTS_ICERR            0x01000000
-#define INTSTS_BMSINT           0x00000010
-#define INTSTS_BMHE             0x00000008
-#define INTSTS_IOIRQS           0x00000004
-#define INTSTS_INTRQ            0x00000002
-#define INTSTS_ACTEINT          0x00000001
-
-
-/* PIO transfer mode table */
-/* JCHST */
-static const unsigned long JCHSTtbl[2][7] = {
-        {0x0E, 0x05, 0x02, 0x03, 0x02, 0x00, 0x00},     /* 100MHz */
-        {0x13, 0x07, 0x04, 0x04, 0x03, 0x00, 0x00}      /* 133MHz */
-};
-
-/* JCHHT */
-static const unsigned long JCHHTtbl[2][7] = {
-        {0x0E, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00},     /* 100MHz */
-        {0x13, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00}      /* 133MHz */
-};
-
-/* JCHCT */
-static const unsigned long JCHCTtbl[2][7] = {
-        {0x1D, 0x1D, 0x1C, 0x0B, 0x06, 0x00, 0x00},     /* 100MHz */
-        {0x27, 0x26, 0x26, 0x0E, 0x09, 0x00, 0x00}      /* 133MHz */
-};
-
-/* DMA transfer mode  table */
-/* JCHDCTM/JCHDCTS */
-static const unsigned long JCHDCTxtbl[2][7] = {
-        {0x0A, 0x06, 0x04, 0x03, 0x01, 0x00, 0x00},     /* 100MHz */
-        {0x0E, 0x09, 0x06, 0x04, 0x02, 0x01, 0x00}      /* 133MHz */
-};
-
-/* JCSTWTM/JCSTWTS  */
-static const unsigned long JCSTWTxtbl[2][7] = {
-        {0x06, 0x04, 0x03, 0x02, 0x02, 0x02, 0x00},     /* 100MHz */
-        {0x09, 0x06, 0x04, 0x02, 0x02, 0x02, 0x02}      /* 133MHz */
-};
-
-/* JCTSS */
-static const unsigned long JCTSStbl[2][7] = {
-        {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x00},     /* 100MHz */
-        {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05}      /* 133MHz */
-};
-
-/* JCENVT */
-static const unsigned long JCENVTtbl[2][7] = {
-        {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00},     /* 100MHz */
-        {0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02}      /* 133MHz */
-};
-
-/* JCACTSELS/JCACTSELM */
-static const unsigned long JCACTSELtbl[2][7] = {
-        {0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00},     /* 100MHz */
-        {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}      /* 133MHz */
-};
-
-static const struct pci_device_id scc_pci_tbl[] = {
-        { PCI_VDEVICE(TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_SCC_ATA), 0},
-        { }     /* terminate list */
-};
-
-/**
- *      scc_set_piomode - Initialize host controller PATA PIO timings
- *      @ap: Port whose timings we are configuring
- *      @adev: um
- *
- *      Set PIO mode for device.
- *
- *      LOCKING:
- *      None (inherited from caller).
- */
-
-static void scc_set_piomode (struct ata_port *ap, struct ata_device *adev)
-{
-        unsigned int pio = adev->pio_mode - XFER_PIO_0;
-        void __iomem *ctrl_base = ap->host->iomap[SCC_CTRL_BAR];
-        void __iomem *cckctrl_port = ctrl_base + SCC_CTL_CCKCTRL;
-        void __iomem *piosht_port = ctrl_base + SCC_CTL_PIOSHT;
-        void __iomem *pioct_port = ctrl_base + SCC_CTL_PIOCT;
-        unsigned long reg;
-        int offset;
-
-        reg = in_be32(cckctrl_port);
-        if (reg & CCKCTRL_ATACLKOEN)
-                offset = 1;     /* 133MHz */
-        else
-                offset = 0;     /* 100MHz */
-
-        reg = JCHSTtbl[offset][pio] << 16 | JCHHTtbl[offset][pio];
-        out_be32(piosht_port, reg);
-        reg = JCHCTtbl[offset][pio];
-        out_be32(pioct_port, reg);
-}
-
-/**
- *      scc_set_dmamode - Initialize host controller PATA DMA timings
- *      @ap: Port whose timings we are configuring
- *      @adev: um
- *
- *      Set UDMA mode for device.
- *
- *      LOCKING:
- *      None (inherited from caller).
- */
-
-static void scc_set_dmamode (struct ata_port *ap, struct ata_device *adev)
-{
-        unsigned int udma = adev->dma_mode;
-        unsigned int is_slave = (adev->devno != 0);
-        u8 speed = udma;
-        void __iomem *ctrl_base = ap->host->iomap[SCC_CTRL_BAR];
-        void __iomem *cckctrl_port = ctrl_base + SCC_CTL_CCKCTRL;
-        void __iomem *mdmact_port = ctrl_base + SCC_CTL_MDMACT;
-        void __iomem *mcrcst_port = ctrl_base + SCC_CTL_MCRCST;
-        void __iomem *sdmact_port = ctrl_base + SCC_CTL_SDMACT;
-        void __iomem *scrcst_port = ctrl_base + SCC_CTL_SCRCST;
-        void __iomem *udenvt_port = ctrl_base + SCC_CTL_UDENVT;
-        void __iomem *tdvhsel_port = ctrl_base + SCC_CTL_TDVHSEL;
-        int offset, idx;
-
-        if (in_be32(cckctrl_port) & CCKCTRL_ATACLKOEN)
-                offset = 1;     /* 133MHz */
-        else
-                offset = 0;     /* 100MHz */
-
-        if (speed >= XFER_UDMA_0)
-                idx = speed - XFER_UDMA_0;
-        else
-                return;
-
-        if (is_slave) {
-                out_be32(sdmact_port, JCHDCTxtbl[offset][idx]);
-                out_be32(scrcst_port, JCSTWTxtbl[offset][idx]);
-                out_be32(tdvhsel_port,
-                         (in_be32(tdvhsel_port) & ~TDVHSEL_SLAVE) | (JCACTSELtbl[offset][idx] << 2));
-        } else {
-                out_be32(mdmact_port, JCHDCTxtbl[offset][idx]);
-                out_be32(mcrcst_port, JCSTWTxtbl[offset][idx]);
-                out_be32(tdvhsel_port,
-                         (in_be32(tdvhsel_port) & ~TDVHSEL_MASTER) | JCACTSELtbl[offset][idx]);
-        }
-        out_be32(udenvt_port,
-                 JCTSStbl[offset][idx] << 16 | JCENVTtbl[offset][idx]);
-}
-
-unsigned long scc_mode_filter(struct ata_device *adev, unsigned long mask)
-{
-        /* errata A308 workaround: limit ATAPI UDMA mode to UDMA4 */
-        if (adev->class == ATA_DEV_ATAPI &&
-            (mask & (0xE0 << ATA_SHIFT_UDMA))) {
-                printk(KERN_INFO "%s: limit ATAPI UDMA to UDMA4\n", DRV_NAME);
-                mask &= ~(0xE0 << ATA_SHIFT_UDMA);
-        }
-        return mask;
-}
-
-/**
- *      scc_tf_load - send taskfile registers to host controller
- *      @ap: Port to which output is sent
- *      @tf: ATA taskfile register set
- *
- *      Note: Original code is ata_sff_tf_load().
- */
-
-static void scc_tf_load (struct ata_port *ap, const struct ata_taskfile *tf)
-{
-        struct ata_ioports *ioaddr = &ap->ioaddr;
-        unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
-
-        if (tf->ctl != ap->last_ctl) {
-                out_be32(ioaddr->ctl_addr, tf->ctl);
-                ap->last_ctl = tf->ctl;
-                ata_wait_idle(ap);
-        }
-
-        if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
-                out_be32(ioaddr->feature_addr, tf->hob_feature);
-                out_be32(ioaddr->nsect_addr, tf->hob_nsect);
-                out_be32(ioaddr->lbal_addr, tf->hob_lbal);
-                out_be32(ioaddr->lbam_addr, tf->hob_lbam);
-                out_be32(ioaddr->lbah_addr, tf->hob_lbah);
-                VPRINTK("hob: feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n",
-                        tf->hob_feature,
-                        tf->hob_nsect,
-                        tf->hob_lbal,
-                        tf->hob_lbam,
-                        tf->hob_lbah);
-        }
-
-        if (is_addr) {
-                out_be32(ioaddr->feature_addr, tf->feature);
-                out_be32(ioaddr->nsect_addr, tf->nsect);
-                out_be32(ioaddr->lbal_addr, tf->lbal);
-                out_be32(ioaddr->lbam_addr, tf->lbam);
-                out_be32(ioaddr->lbah_addr, tf->lbah);
-                VPRINTK("feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",
-                        tf->feature,
-                        tf->nsect,
-                        tf->lbal,
-                        tf->lbam,
-                        tf->lbah);
-        }
-
-        if (tf->flags & ATA_TFLAG_DEVICE) {
-                out_be32(ioaddr->device_addr, tf->device);
-                VPRINTK("device 0x%X\n", tf->device);
-        }
-
-        ata_wait_idle(ap);
-}
-
-/**
- *      scc_check_status - Read device status reg & clear interrupt
- *      @ap: port where the device is
- *
- *      Note: Original code is ata_check_status().
- */
-
-static u8 scc_check_status (struct ata_port *ap)
-{
-        return in_be32(ap->ioaddr.status_addr);
-}
-
-/**
- *      scc_tf_read - input device's ATA taskfile shadow registers
- *      @ap: Port from which input is read
- *      @tf: ATA taskfile register set for storing input
- *
- *      Note: Original code is ata_sff_tf_read().
- */
-
-static void scc_tf_read (struct ata_port *ap, struct ata_taskfile *tf)
-{
-        struct ata_ioports *ioaddr = &ap->ioaddr;
-
-        tf->command = scc_check_status(ap);
-        tf->feature = in_be32(ioaddr->error_addr);
-        tf->nsect = in_be32(ioaddr->nsect_addr);
-        tf->lbal = in_be32(ioaddr->lbal_addr);
-        tf->lbam = in_be32(ioaddr->lbam_addr);
-        tf->lbah = in_be32(ioaddr->lbah_addr);
-        tf->device = in_be32(ioaddr->device_addr);
-
-        if (tf->flags & ATA_TFLAG_LBA48) {
-                out_be32(ioaddr->ctl_addr, tf->ctl | ATA_HOB);
-                tf->hob_feature = in_be32(ioaddr->error_addr);
-                tf->hob_nsect = in_be32(ioaddr->nsect_addr);
-                tf->hob_lbal = in_be32(ioaddr->lbal_addr);
-                tf->hob_lbam = in_be32(ioaddr->lbam_addr);
-                tf->hob_lbah = in_be32(ioaddr->lbah_addr);
-                out_be32(ioaddr->ctl_addr, tf->ctl);
-                ap->last_ctl = tf->ctl;
-        }
-}
-
-/**
- *      scc_exec_command - issue ATA command to host controller
- *      @ap: port to which command is being issued
- *      @tf: ATA taskfile register set
- *
- *      Note: Original code is ata_sff_exec_command().
- */
-
-static void scc_exec_command (struct ata_port *ap,
-                              const struct ata_taskfile *tf)
-{
-        DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
-
-        out_be32(ap->ioaddr.command_addr, tf->command);
-        ata_sff_pause(ap);
-}
-
-/**
- *      scc_check_altstatus - Read device alternate status reg
- *      @ap: port where the device is
- */
-
-static u8 scc_check_altstatus (struct ata_port *ap)
-{
-        return in_be32(ap->ioaddr.altstatus_addr);
-}
-
-/**
- *      scc_dev_select - Select device 0/1 on ATA bus
- *      @ap: ATA channel to manipulate
- *      @device: ATA device (numbered from zero) to select
- *
- *      Note: Original code is ata_sff_dev_select().
- */
-
-static void scc_dev_select (struct ata_port *ap, unsigned int device)
-{
-        u8 tmp;
-
-        if (device == 0)
-                tmp = ATA_DEVICE_OBS;
-        else
-                tmp = ATA_DEVICE_OBS | ATA_DEV1;
-
-        out_be32(ap->ioaddr.device_addr, tmp);
-        ata_sff_pause(ap);
-}
-
-/**
- *      scc_set_devctl - Write device control reg
- *      @ap: port where the device is
- *      @ctl: value to write
- */
-
-static void scc_set_devctl(struct ata_port *ap, u8 ctl)
-{
-        out_be32(ap->ioaddr.ctl_addr, ctl);
-}
-
-/**
- *      scc_bmdma_setup - Set up PCI IDE BMDMA transaction
- *      @qc: Info associated with this ATA transaction.
- *
- *      Note: Original code is ata_bmdma_setup().
- */
-
-static void scc_bmdma_setup (struct ata_queued_cmd *qc)
-{
-        struct ata_port *ap = qc->ap;
-        unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE);
-        u8 dmactl;
-        void __iomem *mmio = ap->ioaddr.bmdma_addr;
-
-        /* load PRD table addr */
-        out_be32(mmio + SCC_DMA_TABLE_OFS, ap->bmdma_prd_dma);
-
-        /* specify data direction, triple-check start bit is clear */
-        dmactl = in_be32(mmio + SCC_DMA_CMD);
-        dmactl &= ~(ATA_DMA_WR | ATA_DMA_START);
-        if (!rw)
-                dmactl |= ATA_DMA_WR;
-        out_be32(mmio + SCC_DMA_CMD, dmactl);
-
-        /* issue r/w command */
-        ap->ops->sff_exec_command(ap, &qc->tf);
-}
-
-/**
- *      scc_bmdma_start - Start a PCI IDE BMDMA transaction
- *      @qc: Info associated with this ATA transaction.
- *
- *      Note: Original code is ata_bmdma_start().
- */
-
-static void scc_bmdma_start (struct ata_queued_cmd *qc)
-{
-        struct ata_port *ap = qc->ap;
-        u8 dmactl;
-        void __iomem *mmio = ap->ioaddr.bmdma_addr;
-
-        /* start host DMA transaction */
-        dmactl = in_be32(mmio + SCC_DMA_CMD);
-        out_be32(mmio + SCC_DMA_CMD, dmactl | ATA_DMA_START);
-}
-
-/**
- *      scc_devchk - PATA device presence detection
- *      @ap: ATA channel to examine
- *      @device: Device to examine (starting at zero)
- *
- *      Note: Original code is ata_devchk().
- */
-
-static unsigned int scc_devchk (struct ata_port *ap,
-                                unsigned int device)
-{
-        struct ata_ioports *ioaddr = &ap->ioaddr;
-        u8 nsect, lbal;
-
-        ap->ops->sff_dev_select(ap, device);
-
-        out_be32(ioaddr->nsect_addr, 0x55);
-        out_be32(ioaddr->lbal_addr, 0xaa);
-
-        out_be32(ioaddr->nsect_addr, 0xaa);
-        out_be32(ioaddr->lbal_addr, 0x55);
-
-        out_be32(ioaddr->nsect_addr, 0x55);
-        out_be32(ioaddr->lbal_addr, 0xaa);
-
-        nsect = in_be32(ioaddr->nsect_addr);
-        lbal = in_be32(ioaddr->lbal_addr);
-
-        if ((nsect == 0x55) && (lbal == 0xaa))
-                return 1;       /* we found a device */
-
-        return 0;               /* nothing found */
-}
-
-/**
- *      scc_wait_after_reset - wait for devices to become ready after reset
- *
- *      Note: Original code is ata_sff_wait_after_reset
- */
-
-static int scc_wait_after_reset(struct ata_link *link, unsigned int devmask,
-                                unsigned long deadline)
-{
-        struct ata_port *ap = link->ap;
-        struct ata_ioports *ioaddr = &ap->ioaddr;
-        unsigned int dev0 = devmask & (1 << 0);
-        unsigned int dev1 = devmask & (1 << 1);
-        int rc, ret = 0;
-
-        /* Spec mandates ">= 2ms" before checking status.  We wait
-         * 150ms, because that was the magic delay used for ATAPI
-         * devices in Hale Landis's ATADRVR, for the period of time
-         * between when the ATA command register is written, and then
-         * status is checked.  Because waiting for "a while" before
-         * checking status is fine, post SRST, we perform this magic
-         * delay here as well.
-         *
-         * Old drivers/ide uses the 2mS rule and then waits for ready.
-         */
-        ata_msleep(ap, 150);
-
-        /* always check readiness of the master device */
-        rc = ata_sff_wait_ready(link, deadline);
-        /* -ENODEV means the odd clown forgot the D7 pulldown resistor
-         * and TF status is 0xff, bail out on it too.
-         */
-        if (rc)
-                return rc;
-
-        /* if device 1 was found in ata_devchk, wait for register
-         * access briefly, then wait for BSY to clear.
-         */
-        if (dev1) {
-                int i;
-
-                ap->ops->sff_dev_select(ap, 1);
-
-                /* Wait for register access.  Some ATAPI devices fail
-                 * to set nsect/lbal after reset, so don't waste too
-                 * much time on it.  We're gonna wait for !BSY anyway.
-                 */
-                for (i = 0; i < 2; i++) {
-                        u8 nsect, lbal;
-
-                        nsect = in_be32(ioaddr->nsect_addr);
-                        lbal = in_be32(ioaddr->lbal_addr);
-                        if ((nsect == 1) && (lbal == 1))
-                                break;
-                        ata_msleep(ap, 50);     /* give drive a breather */
-                }
-
-                rc = ata_sff_wait_ready(link, deadline);
-                if (rc) {
-                        if (rc != -ENODEV)
-                                return rc;
-                        ret = rc;
-                }
-        }
-
-        /* is all this really necessary? */
-        ap->ops->sff_dev_select(ap, 0);
-        if (dev1)
-                ap->ops->sff_dev_select(ap, 1);
-        if (dev0)
-                ap->ops->sff_dev_select(ap, 0);
-
-        return ret;
-}
-
-/**
- *      scc_bus_softreset - PATA device software reset
- *
- *      Note: Original code is ata_bus_softreset().
- */
-
-static int scc_bus_softreset(struct ata_port *ap, unsigned int devmask,
-                                      unsigned long deadline)
-{
-        struct ata_ioports *ioaddr = &ap->ioaddr;
-
-        DPRINTK("ata%u: bus reset via SRST\n", ap->print_id);
-
-        /* software reset.  causes dev0 to be selected */
-        out_be32(ioaddr->ctl_addr, ap->ctl);
-        udelay(20);
-        out_be32(ioaddr->ctl_addr, ap->ctl | ATA_SRST);
-        udelay(20);
-        out_be32(ioaddr->ctl_addr, ap->ctl);
-
-        return scc_wait_after_reset(&ap->link, devmask, deadline);
-}
-
-/**
- *      scc_softreset - reset host port via ATA SRST
- *      @ap: port to reset
- *      @classes: resulting classes of attached devices
- *      @deadline: deadline jiffies for the operation
- *
- *      Note: Original code is ata_sff_softreset().
- */
-
-static int scc_softreset(struct ata_link *link, unsigned int *classes,
-                         unsigned long deadline)
-{
-        struct ata_port *ap = link->ap;
-        unsigned int slave_possible = ap->flags & ATA_FLAG_SLAVE_POSS;
-        unsigned int devmask = 0;
-        int rc;
-        u8 err;
-
-        DPRINTK("ENTER\n");
-
-        /* determine if device 0/1 are present */
-        if (scc_devchk(ap, 0))
-                devmask |= (1 << 0);
-        if (slave_possible && scc_devchk(ap, 1))
-                devmask |= (1 << 1);
-
-        /* select device 0 again */
-        ap->ops->sff_dev_select(ap, 0);
-
-        /* issue bus reset */
-        DPRINTK("about to softreset, devmask=%x\n", devmask);
-        rc = scc_bus_softreset(ap, devmask, deadline);
-        if (rc) {
-                ata_port_err(ap, "SRST failed (err_mask=0x%x)\n", rc);
-                return -EIO;
-        }
-
-        /* determine by signature whether we have ATA or ATAPI devices */
-        classes[0] = ata_sff_dev_classify(&ap->link.device[0],
-                                          devmask & (1 << 0), &err);
-        if (slave_possible && err != 0x81)
-                classes[1] = ata_sff_dev_classify(&ap->link.device[1],
-                                                  devmask & (1 << 1), &err);
-
-        DPRINTK("EXIT, classes[0]=%u [1]=%u\n", classes[0], classes[1]);
-        return 0;
-}
-
-/**
- *      scc_bmdma_stop - Stop PCI IDE BMDMA transfer
- *      @qc: Command we are ending DMA for
- */
-
-static void scc_bmdma_stop (struct ata_queued_cmd *qc)
-{
-        struct ata_port *ap = qc->ap;
-        void __iomem *ctrl_base = ap->host->iomap[SCC_CTRL_BAR];
-        void __iomem *bmid_base = ap->host->iomap[SCC_BMID_BAR];
-        u32 reg;
-
-        while (1) {
-                reg = in_be32(bmid_base + SCC_DMA_INTST);
-
-                if (reg & INTSTS_SERROR) {
-                        printk(KERN_WARNING "%s: SERROR\n", DRV_NAME);
-                        out_be32(bmid_base + SCC_DMA_INTST, INTSTS_SERROR|INTSTS_BMSINT);
-                        out_be32(bmid_base + SCC_DMA_CMD,
-                                 in_be32(bmid_base + SCC_DMA_CMD) & ~ATA_DMA_START);
-                        continue;
-                }
-
-                if (reg & INTSTS_PRERR) {
-                        u32 maea0, maec0;
-                        maea0 = in_be32(ctrl_base + SCC_CTL_MAEA0);
-                        maec0 = in_be32(ctrl_base + SCC_CTL_MAEC0);
-                        printk(KERN_WARNING "%s: PRERR [addr:%x cmd:%x]\n", DRV_NAME, maea0, maec0);
-                        out_be32(bmid_base + SCC_DMA_INTST, INTSTS_PRERR|INTSTS_BMSINT);
-                        out_be32(bmid_base + SCC_DMA_CMD,
-                                 in_be32(bmid_base + SCC_DMA_CMD) & ~ATA_DMA_START);
-                        continue;
-                }
-
-                if (reg & INTSTS_RERR) {
-                        printk(KERN_WARNING "%s: Response Error\n", DRV_NAME);
-                        out_be32(bmid_base + SCC_DMA_INTST, INTSTS_RERR|INTSTS_BMSINT);
-                        out_be32(bmid_base + SCC_DMA_CMD,
-                                 in_be32(bmid_base + SCC_DMA_CMD) & ~ATA_DMA_START);
-                        continue;
-                }
-
-                if (reg & INTSTS_ICERR) {
-                        out_be32(bmid_base + SCC_DMA_CMD,
-                                 in_be32(bmid_base + SCC_DMA_CMD) & ~ATA_DMA_START);
-                        printk(KERN_WARNING "%s: Illegal Configuration\n", DRV_NAME);
-                        out_be32(bmid_base + SCC_DMA_INTST, INTSTS_ICERR|INTSTS_BMSINT);
-                        continue;
-                }
-
-                if (reg & INTSTS_BMSINT) {
-                        unsigned int classes;
-                        unsigned long deadline = ata_deadline(jiffies, ATA_TMOUT_BOOT);
-                        printk(KERN_WARNING "%s: Internal Bus Error\n", DRV_NAME);
-                        out_be32(bmid_base + SCC_DMA_INTST, INTSTS_BMSINT);
-                        /* TBD: SW reset */
-                        scc_softreset(&ap->link, &classes, deadline);
-                        continue;
-                }
-
-                if (reg & INTSTS_BMHE) {
-                        out_be32(bmid_base + SCC_DMA_INTST, INTSTS_BMHE);
-                        continue;
-                }
-
-                if (reg & INTSTS_ACTEINT) {
-                        out_be32(bmid_base + SCC_DMA_INTST, INTSTS_ACTEINT);
-                        continue;
-                }
-
-                if (reg & INTSTS_IOIRQS) {
-                        out_be32(bmid_base + SCC_DMA_INTST, INTSTS_IOIRQS);
-                        continue;
-                }
-                break;
-        }
-
-        /* clear start/stop bit */
-        out_be32(bmid_base + SCC_DMA_CMD,
-                 in_be32(bmid_base + SCC_DMA_CMD) & ~ATA_DMA_START);
-
-        /* one-PIO-cycle guaranteed wait, per spec, for HDMA1:0 transition */
-        ata_sff_dma_pause(ap);  /* dummy read */
-}
-
-/**
- *      scc_bmdma_status - Read PCI IDE BMDMA status
- *      @ap: Port associated with this ATA transaction.
- */
-
-static u8 scc_bmdma_status (struct ata_port *ap)
-{
-        void __iomem *mmio = ap->ioaddr.bmdma_addr;
-        u8 host_stat = in_be32(mmio + SCC_DMA_STATUS);
-        u32 int_status = in_be32(mmio + SCC_DMA_INTST);
-        struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag);
-        static int retry = 0;
-
-        /* return if IOS_SS is cleared */
-        if (!(in_be32(mmio + SCC_DMA_CMD) & ATA_DMA_START))
-                return host_stat;
-
-        /* errata A252,A308 workaround: Step4 */
-        if ((scc_check_altstatus(ap) & ATA_ERR)
-                                        && (int_status & INTSTS_INTRQ))
-                return (host_stat | ATA_DMA_INTR);
-
-        /* errata A308 workaround Step5 */
-        if (int_status & INTSTS_IOIRQS) {
-                host_stat |= ATA_DMA_INTR;
-
-                /* We don't check ATAPI DMA because it is limited to UDMA4 */
-                if ((qc->tf.protocol == ATA_PROT_DMA &&
-                     qc->dev->xfer_mode > XFER_UDMA_4)) {
-                        if (!(int_status & INTSTS_ACTEINT)) {
-                                printk(KERN_WARNING "ata%u: operation failed (transfer data loss)\n",
-                                       ap->print_id);
-                                host_stat |= ATA_DMA_ERR;
-                                if (retry++)
-                                        ap->udma_mask &= ~(1 << qc->dev->xfer_mode);
-                        } else
-                                retry = 0;
-                }
-        }
-
-        return host_stat;
-}
-
-/**
- *      scc_data_xfer - Transfer data by PIO
- *      @dev: device for this I/O
- *      @buf: data buffer
- *      @buflen: buffer length
- *      @rw: read/write
- *
- *      Note: Original code is ata_sff_data_xfer().
- */
-
-static unsigned int scc_data_xfer (struct ata_device *dev, unsigned char *buf,
-                                   unsigned int buflen, int rw)
-{
-        struct ata_port *ap = dev->link->ap;
-        unsigned int words = buflen >> 1;
-        unsigned int i;
-        __le16 *buf16 = (__le16 *) buf;
-        void __iomem *mmio = ap->ioaddr.data_addr;
-
-        /* Transfer multiple of 2 bytes */
-        if (rw == READ)
-                for (i = 0; i < words; i++)
-                        buf16[i] = cpu_to_le16(in_be32(mmio));
-        else
-                for (i = 0; i < words; i++)
-                        out_be32(mmio, le16_to_cpu(buf16[i]));
-
-        /* Transfer trailing 1 byte, if any. */
-        if (unlikely(buflen & 0x01)) {
-                __le16 align_buf[1] = { 0 };
-                unsigned char *trailing_buf = buf + buflen - 1;
-
-                if (rw == READ) {
-                        align_buf[0] = cpu_to_le16(in_be32(mmio));
-                        memcpy(trailing_buf, align_buf, 1);
-                } else {
-                        memcpy(align_buf, trailing_buf, 1);
-                        out_be32(mmio, le16_to_cpu(align_buf[0]));
-                }
-                words++;
-        }
-
-        return words << 1;
-}
-
-/**
- *      scc_postreset - standard postreset callback
- *      @ap: the target ata_port
- *      @classes: classes of attached devices
- *
- *      Note: Original code is ata_sff_postreset().
- */
-
-static void scc_postreset(struct ata_link *link, unsigned int *classes)
-{
-        struct ata_port *ap = link->ap;
-
-        DPRINTK("ENTER\n");
-
-        /* is double-select really necessary? */
-        if (classes[0] != ATA_DEV_NONE)
-                ap->ops->sff_dev_select(ap, 1);
-        if (classes[1] != ATA_DEV_NONE)
-                ap->ops->sff_dev_select(ap, 0);
-
-        /* bail out if no device is present */
-        if (classes[0] == ATA_DEV_NONE && classes[1] == ATA_DEV_NONE) {
-                DPRINTK("EXIT, no device\n");
-                return;
-        }
-
-        /* set up device control */
-        out_be32(ap->ioaddr.ctl_addr, ap->ctl);
-
-        DPRINTK("EXIT\n");
-}
-
-/**
- *      scc_irq_clear - Clear PCI IDE BMDMA interrupt.
- *      @ap: Port associated with this ATA transaction.
- *
- *      Note: Original code is ata_bmdma_irq_clear().
- */
-
-static void scc_irq_clear (struct ata_port *ap)
-{
-        void __iomem *mmio = ap->ioaddr.bmdma_addr;
-
-        if (!mmio)
-                return;
-
-        out_be32(mmio + SCC_DMA_STATUS, in_be32(mmio + SCC_DMA_STATUS));
-}
-
-/**
- *      scc_port_start - Set port up for dma.
- *      @ap: Port to initialize
- *
- *      Allocate space for PRD table using ata_bmdma_port_start().
- *      Set PRD table address for PTERADD. (PRD Transfer End Read)
- */
-
-static int scc_port_start (struct ata_port *ap)
-{
-        void __iomem *mmio = ap->ioaddr.bmdma_addr;
-        int rc;
-
-        rc = ata_bmdma_port_start(ap);
-        if (rc)
-                return rc;
-
-        out_be32(mmio + SCC_DMA_PTERADD, ap->bmdma_prd_dma);
-        return 0;
-}
-
-/**
- *      scc_port_stop - Undo scc_port_start()
- *      @ap: Port to shut down
- *
- *      Reset PTERADD.
- */
-
-static void scc_port_stop (struct ata_port *ap)
-{
-        void __iomem *mmio = ap->ioaddr.bmdma_addr;
-
-        out_be32(mmio + SCC_DMA_PTERADD, 0);
-}
-
-static struct scsi_host_template scc_sht = {
-        ATA_BMDMA_SHT(DRV_NAME),
-};
-
-static struct ata_port_operations scc_pata_ops = {
-        .inherits               = &ata_bmdma_port_ops,
-
-        .set_piomode            = scc_set_piomode,
-        .set_dmamode            = scc_set_dmamode,
-        .mode_filter            = scc_mode_filter,
-
-        .sff_tf_load            = scc_tf_load,
-        .sff_tf_read            = scc_tf_read,
-        .sff_exec_command       = scc_exec_command,
-        .sff_check_status       = scc_check_status,
-        .sff_check_altstatus    = scc_check_altstatus,
-        .sff_dev_select         = scc_dev_select,
-        .sff_set_devctl         = scc_set_devctl,
-
-        .bmdma_setup            = scc_bmdma_setup,
-        .bmdma_start            = scc_bmdma_start,
-        .bmdma_stop             = scc_bmdma_stop,
-        .bmdma_status           = scc_bmdma_status,
-        .sff_data_xfer          = scc_data_xfer,
-
-        .cable_detect           = ata_cable_80wire,
-        .softreset              = scc_softreset,
-        .postreset              = scc_postreset,
-
-        .sff_irq_clear          = scc_irq_clear,
-
-        .port_start             = scc_port_start,
-        .port_stop              = scc_port_stop,
-};
-
-static struct ata_port_info scc_port_info[] = {
-        {
-                .flags          = ATA_FLAG_SLAVE_POSS,
-                .pio_mask       = ATA_PIO4,
-                /* No MWDMA */
-                .udma_mask      = ATA_UDMA6,
-                .port_ops       = &scc_pata_ops,
-        },
-};
-
-/**
- *      scc_reset_controller - initialize SCC PATA controller.
- */
-
-static int scc_reset_controller(struct ata_host *host)
-{
-        void __iomem *ctrl_base = host->iomap[SCC_CTRL_BAR];
-        void __iomem *bmid_base = host->iomap[SCC_BMID_BAR];
-        void __iomem *cckctrl_port = ctrl_base + SCC_CTL_CCKCTRL;
-        void __iomem *mode_port = ctrl_base + SCC_CTL_MODEREG;
-        void __iomem *ecmode_port = ctrl_base + SCC_CTL_ECMODE;
-        void __iomem *intmask_port = bmid_base + SCC_DMA_INTMASK;
-        void __iomem *dmastatus_port = bmid_base + SCC_DMA_STATUS;
-        u32 reg = 0;
-
-        out_be32(cckctrl_port, reg);
-        reg |= CCKCTRL_ATACLKOEN;
-        out_be32(cckctrl_port, reg);
-        reg |= CCKCTRL_LCLKEN | CCKCTRL_OCLKEN;
-        out_be32(cckctrl_port, reg);
-        reg |= CCKCTRL_CRST;
-        out_be32(cckctrl_port, reg);
-
-        for (;;) {
-                reg = in_be32(cckctrl_port);
-                if (reg & CCKCTRL_CRST)
-                        break;
-                udelay(5000);
-        }
-
-        reg |= CCKCTRL_ATARESET;
-        out_be32(cckctrl_port, reg);
-        out_be32(ecmode_port, ECMODE_VALUE);
-        out_be32(mode_port, MODE_JCUSFEN);
-        out_be32(intmask_port, INTMASK_MSK);
-
-        if (in_be32(dmastatus_port) & QCHSD_STPDIAG) {
-                printk(KERN_WARNING "%s: failed to detect 80c cable. (PDIAG# is high)\n", DRV_NAME);
-                return -EIO;
-        }
-
-        return 0;
-}
-
-/**
- *      scc_setup_ports - initialize ioaddr with SCC PATA port offsets.
- *      @ioaddr: IO address structure to be initialized
- *      @base: base address of BMID region
- */
-
-static void scc_setup_ports (struct ata_ioports *ioaddr, void __iomem *base)
-{
-        ioaddr->cmd_addr = base + SCC_REG_CMD_ADDR;
-        ioaddr->altstatus_addr = ioaddr->cmd_addr + SCC_REG_ALTSTATUS;
-        ioaddr->ctl_addr = ioaddr->cmd_addr + SCC_REG_ALTSTATUS;
-        ioaddr->bmdma_addr = base;
-        ioaddr->data_addr = ioaddr->cmd_addr + SCC_REG_DATA;
-        ioaddr->error_addr = ioaddr->cmd_addr + SCC_REG_ERR;
-        ioaddr->feature_addr = ioaddr->cmd_addr + SCC_REG_FEATURE;
-        ioaddr->nsect_addr = ioaddr->cmd_addr + SCC_REG_NSECT;
-        ioaddr->lbal_addr = ioaddr->cmd_addr + SCC_REG_LBAL;
-        ioaddr->lbam_addr = ioaddr->cmd_addr + SCC_REG_LBAM;
-        ioaddr->lbah_addr = ioaddr->cmd_addr + SCC_REG_LBAH;
-        ioaddr->device_addr = ioaddr->cmd_addr + SCC_REG_DEVICE;
-        ioaddr->status_addr = ioaddr->cmd_addr + SCC_REG_STATUS;
-        ioaddr->command_addr = ioaddr->cmd_addr + SCC_REG_CMD;
-}
-
-static int scc_host_init(struct ata_host *host)
-{
-        struct pci_dev *pdev = to_pci_dev(host->dev);
-        int rc;
-
-        rc = scc_reset_controller(host);
-        if (rc)
-                return rc;
-
-        rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
-        if (rc)
-                return rc;
-        rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
-        if (rc)
-                return rc;
-
-        scc_setup_ports(&host->ports[0]->ioaddr, host->iomap[SCC_BMID_BAR]);
-
-        pci_set_master(pdev);
-
-        return 0;
-}
-
-/**
- *      scc_init_one - Register SCC PATA device with kernel services
- *      @pdev: PCI device to register
- *      @ent: Entry in scc_pci_tbl matching with @pdev
- *
- *      LOCKING:
- *      Inherited from PCI layer (may sleep).
- *
- *      RETURNS:
- *      Zero on success, or -ERRNO value.
- */
-
-static int scc_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
-{
-        unsigned int board_idx = (unsigned int) ent->driver_data;
-        const struct ata_port_info *ppi[] = { &scc_port_info[board_idx], NULL };
-        struct ata_host *host;
-        int rc;
-
-        ata_print_version_once(&pdev->dev, DRV_VERSION);
-
-        host = ata_host_alloc_pinfo(&pdev->dev, ppi, 1);
-        if (!host)
-                return -ENOMEM;
-
-        rc = pcim_enable_device(pdev);
-        if (rc)
-                return rc;
-
-        rc = pcim_iomap_regions(pdev, (1 << SCC_CTRL_BAR) | (1 << SCC_BMID_BAR), DRV_NAME);
-        if (rc == -EBUSY)
-                pcim_pin_device(pdev);
-        if (rc)
-                return rc;
-        host->iomap = pcim_iomap_table(pdev);
-
-        ata_port_pbar_desc(host->ports[0], SCC_CTRL_BAR, -1, "ctrl");
-        ata_port_pbar_desc(host->ports[0], SCC_BMID_BAR, -1, "bmid");
-
-        rc = scc_host_init(host);
-        if (rc)
-                return rc;
-
-        return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
-                                 IRQF_SHARED, &scc_sht);
-}
-
-static struct pci_driver scc_pci_driver = {
-        .name                   = DRV_NAME,
-        .id_table               = scc_pci_tbl,
-        .probe                  = scc_init_one,
-        .remove                 = ata_pci_remove_one,
-#ifdef CONFIG_PM_SLEEP
-        .suspend                = ata_pci_device_suspend,
-        .resume                 = ata_pci_device_resume,
-#endif
-};
-
-module_pci_driver(scc_pci_driver);
-
-MODULE_AUTHOR("Toshiba corp");
-MODULE_DESCRIPTION("SCSI low-level driver for Toshiba SCC PATA controller");
-MODULE_LICENSE("GPL");
-MODULE_DEVICE_TABLE(pci, scc_pci_tbl);
-MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index ae3fcb4199e9..d7173cb1ea76 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1620,8 +1620,8 @@ out:
 
 static void loop_remove(struct loop_device *lo)
 {
-        del_gendisk(lo->lo_disk);
         blk_cleanup_queue(lo->lo_queue);
+        del_gendisk(lo->lo_disk);
         blk_mq_free_tag_set(&lo->tag_set);
         put_disk(lo->lo_disk);
         kfree(lo);
diff --git a/drivers/block/nvme-scsi.c b/drivers/block/nvme-scsi.c
index 6b736b00f63e..88f13c525712 100644
--- a/drivers/block/nvme-scsi.c
+++ b/drivers/block/nvme-scsi.c
@@ -944,7 +944,8 @@ static int nvme_trans_ext_inq_page(struct nvme_ns *ns, struct sg_io_hdr *hdr,
 static int nvme_trans_bdev_limits_page(struct nvme_ns *ns, struct sg_io_hdr *hdr,
                                         u8 *inq_response, int alloc_len)
 {
-        __be32 max_sectors = cpu_to_be32(queue_max_hw_sectors(ns->queue));
+        __be32 max_sectors = cpu_to_be32(
+                nvme_block_nr(ns, queue_max_hw_sectors(ns->queue)));
         __be32 max_discard = cpu_to_be32(ns->queue->limits.max_discard_sectors);
         __be32 discard_desc_count = cpu_to_be32(0x100);
 
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 812523330a78..ec6c5c6e1ac9 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2264,6 +2264,11 @@ static bool rbd_img_obj_end_request(struct rbd_obj_request *obj_request)
                         result, xferred);
                 if (!img_request->result)
                         img_request->result = result;
+                /*
+                 * Need to end I/O on the entire obj_request worth of
+                 * bytes in case of error.
+                 */
+                xferred = obj_request->length;
         }
 
         /* Image object requests don't own their page array */
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index bd2b3bbbb22c..713fc9ff1149 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -265,17 +265,6 @@ static void put_persistent_gnt(struct xen_blkif *blkif,
         atomic_dec(&blkif->persistent_gnt_in_use);
 }
 
-static void free_persistent_gnts_unmap_callback(int result,
-                                                struct gntab_unmap_queue_data *data)
-{
-        struct completion *c = data->data;
-
-        /* BUG_ON used to reproduce existing behaviour,
-           but is this the best way to deal with this? */
-        BUG_ON(result);
-        complete(c);
-}
-
 static void free_persistent_gnts(struct xen_blkif *blkif, struct rb_root *root,
                                  unsigned int num)
 {
@@ -285,12 +274,7 @@ static void free_persistent_gnts(struct xen_blkif *blkif, struct rb_root *root,
         struct rb_node *n;
         int segs_to_unmap = 0;
         struct gntab_unmap_queue_data unmap_data;
-        struct completion unmap_completion;
 
-        init_completion(&unmap_completion);
-
-        unmap_data.data = &unmap_completion;
-        unmap_data.done = &free_persistent_gnts_unmap_callback;
         unmap_data.pages = pages;
         unmap_data.unmap_ops = unmap;
         unmap_data.kunmap_ops = NULL;
@@ -310,8 +294,7 @@ static void free_persistent_gnts(struct xen_blkif *blkif, struct rb_root *root,
                         !rb_next(&persistent_gnt->node)) {
 
                         unmap_data.count = segs_to_unmap;
-                        gnttab_unmap_refs_async(&unmap_data);
-                        wait_for_completion(&unmap_completion);
+                        BUG_ON(gnttab_unmap_refs_sync(&unmap_data));
 
                         put_free_pages(blkif, pages, segs_to_unmap);
                         segs_to_unmap = 0;
@@ -329,8 +312,13 @@ void xen_blkbk_unmap_purged_grants(struct work_struct *work)
         struct gnttab_unmap_grant_ref unmap[BLKIF_MAX_SEGMENTS_PER_REQUEST];
         struct page *pages[BLKIF_MAX_SEGMENTS_PER_REQUEST];
         struct persistent_gnt *persistent_gnt;
-        int ret, segs_to_unmap = 0;
+        int segs_to_unmap = 0;
         struct xen_blkif *blkif = container_of(work, typeof(*blkif), persistent_purge_work);
+        struct gntab_unmap_queue_data unmap_data;
+
+        unmap_data.pages = pages;
+        unmap_data.unmap_ops = unmap;
+        unmap_data.kunmap_ops = NULL;
 
         while(!list_empty(&blkif->persistent_purge_list)) {
                 persistent_gnt = list_first_entry(&blkif->persistent_purge_list,
@@ -346,17 +334,16 @@ void xen_blkbk_unmap_purged_grants(struct work_struct *work)
                 pages[segs_to_unmap] = persistent_gnt->page;
 
                 if (++segs_to_unmap == BLKIF_MAX_SEGMENTS_PER_REQUEST) {
-                        ret = gnttab_unmap_refs(unmap, NULL, pages,
-                                segs_to_unmap);
-                        BUG_ON(ret);
+                        unmap_data.count = segs_to_unmap;
+                        BUG_ON(gnttab_unmap_refs_sync(&unmap_data));
                         put_free_pages(blkif, pages, segs_to_unmap);
                         segs_to_unmap = 0;
                 }
                 kfree(persistent_gnt);
         }
         if (segs_to_unmap > 0) {
-                ret = gnttab_unmap_refs(unmap, NULL, pages, segs_to_unmap);
-                BUG_ON(ret);
+                unmap_data.count = segs_to_unmap;
+                BUG_ON(gnttab_unmap_refs_sync(&unmap_data));
                 put_free_pages(blkif, pages, segs_to_unmap);
         }
 }
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index c94386aa563d..8dcbced0eafd 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -74,6 +74,27 @@ static inline struct zram *dev_to_zram(struct device *dev)
         return (struct zram *)dev_to_disk(dev)->private_data;
 }
 
+static ssize_t compact_store(struct device *dev,
+                struct device_attribute *attr, const char *buf, size_t len)
+{
+        unsigned long nr_migrated;
+        struct zram *zram = dev_to_zram(dev);
+        struct zram_meta *meta;
+
+        down_read(&zram->init_lock);
+        if (!init_done(zram)) {
+                up_read(&zram->init_lock);
+                return -EINVAL;
+        }
+
+        meta = zram->meta;
+        nr_migrated = zs_compact(meta->mem_pool);
+        atomic64_add(nr_migrated, &zram->stats.num_migrated);
+        up_read(&zram->init_lock);
+
+        return len;
+}
+
 static ssize_t disksize_show(struct device *dev,
                 struct device_attribute *attr, char *buf)
 {
@@ -1038,6 +1059,7 @@ static const struct block_device_operations zram_devops = {
         .owner = THIS_MODULE
 };
 
+static DEVICE_ATTR_WO(compact);
 static DEVICE_ATTR_RW(disksize);
 static DEVICE_ATTR_RO(initstate);
 static DEVICE_ATTR_WO(reset);
@@ -1114,6 +1136,7 @@ static struct attribute *zram_disk_attrs[] = {
         &dev_attr_num_writes.attr,
         &dev_attr_failed_reads.attr,
         &dev_attr_failed_writes.attr,
+        &dev_attr_compact.attr,
         &dev_attr_invalid_io.attr,
         &dev_attr_notify_free.attr,
         &dev_attr_zero_pages.attr,
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index b854125e4831..5340604b23a4 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -660,7 +660,7 @@ validate_group(struct perf_event *event)
                  * Initialise the fake PMU. We only need to populate the
                  * used_mask for the purposes of validation.
                  */
-                .used_mask = CPU_BITS_NONE,
+                .used_mask = { 0 },
         };
 
         if (!validate_event(event->pmu, &fake_pmu, leader))
diff --git a/drivers/bus/omap_l3_noc.c b/drivers/bus/omap_l3_noc.c
index 11f7982cbdb3..ebee57d715d2 100644
--- a/drivers/bus/omap_l3_noc.c
+++ b/drivers/bus/omap_l3_noc.c
@@ -1,7 +1,7 @@
 /*
  * OMAP L3 Interconnect error handling driver
  *
- * Copyright (C) 2011-2014 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2011-2015 Texas Instruments Incorporated - http://www.ti.com/
  *      Santosh Shilimkar <santosh.shilimkar@ti.com>
  *      Sricharan <r.sricharan@ti.com>
  *
@@ -233,7 +233,8 @@ static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
 }
 
 static const struct of_device_id l3_noc_match[] = {
-        {.compatible = "ti,omap4-l3-noc", .data = &omap_l3_data},
+        {.compatible = "ti,omap4-l3-noc", .data = &omap4_l3_data},
+        {.compatible = "ti,omap5-l3-noc", .data = &omap5_l3_data},
         {.compatible = "ti,dra7-l3-noc", .data = &dra_l3_data},
         {.compatible = "ti,am4372-l3-noc", .data = &am4372_l3_data},
         {},
diff --git a/drivers/bus/omap_l3_noc.h b/drivers/bus/omap_l3_noc.h
index 95254585db86..73431f81da28 100644
--- a/drivers/bus/omap_l3_noc.h
+++ b/drivers/bus/omap_l3_noc.h
@@ -1,7 +1,7 @@
 /*
  * OMAP L3 Interconnect  error handling driver header
  *
- * Copyright (C) 2011-2014 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2011-2015 Texas Instruments Incorporated - http://www.ti.com/
  *      Santosh Shilimkar <santosh.shilimkar@ti.com>
  *      sricharan <r.sricharan@ti.com>
  *
@@ -175,16 +175,14 @@ static struct l3_flagmux_data omap_l3_flagmux_clk2 = {
 };
 
 
-static struct l3_target_data omap_l3_target_data_clk3[] = {
-        {0x0100, "EMUSS",},
-        {0x0300, "DEBUG SOURCE",},
-        {0x0,   "HOST CLK3",},
+static struct l3_target_data omap4_l3_target_data_clk3[] = {
+        {0x0100, "DEBUGSS",},
 };
 
-static struct l3_flagmux_data omap_l3_flagmux_clk3 = {
+static struct l3_flagmux_data omap4_l3_flagmux_clk3 = {
         .offset = 0x0200,
-        .l3_targ = omap_l3_target_data_clk3,
-        .num_targ_data = ARRAY_SIZE(omap_l3_target_data_clk3),
+        .l3_targ = omap4_l3_target_data_clk3,
+        .num_targ_data = ARRAY_SIZE(omap4_l3_target_data_clk3),
 };
 
 static struct l3_masters_data omap_l3_masters[] = {
@@ -215,21 +213,49 @@ static struct l3_masters_data omap_l3_masters[] = {
         { 0x32, "USBHOSTFS"}
 };
 
-static struct l3_flagmux_data *omap_l3_flagmux[] = {
+static struct l3_flagmux_data *omap4_l3_flagmux[] = {
         &omap_l3_flagmux_clk1,
         &omap_l3_flagmux_clk2,
-        &omap_l3_flagmux_clk3,
+        &omap4_l3_flagmux_clk3,
 };
 
-static const struct omap_l3 omap_l3_data = {
-        .l3_flagmux = omap_l3_flagmux,
-        .num_modules = ARRAY_SIZE(omap_l3_flagmux),
+static const struct omap_l3 omap4_l3_data = {
+        .l3_flagmux = omap4_l3_flagmux,
+        .num_modules = ARRAY_SIZE(omap4_l3_flagmux),
         .l3_masters = omap_l3_masters,
         .num_masters = ARRAY_SIZE(omap_l3_masters),
         /* The 6 MSBs of register field used to distinguish initiator */
         .mst_addr_mask = 0xFC,
 };
 
+/* OMAP5 data */
+static struct l3_target_data omap5_l3_target_data_clk3[] = {
+        {0x0100, "L3INSTR",},
+        {0x0300, "DEBUGSS",},
+        {0x0,    "HOSTCLK3",},
+};
+
+static struct l3_flagmux_data omap5_l3_flagmux_clk3 = {
+        .offset = 0x0200,
+        .l3_targ = omap5_l3_target_data_clk3,
+        .num_targ_data = ARRAY_SIZE(omap5_l3_target_data_clk3),
+};
+
+static struct l3_flagmux_data *omap5_l3_flagmux[] = {
+        &omap_l3_flagmux_clk1,
+        &omap_l3_flagmux_clk2,
+        &omap5_l3_flagmux_clk3,
+};
+
+static const struct omap_l3 omap5_l3_data = {
+        .l3_flagmux = omap5_l3_flagmux,
+        .num_modules = ARRAY_SIZE(omap5_l3_flagmux),
+        .l3_masters = omap_l3_masters,
+        .num_masters = ARRAY_SIZE(omap_l3_masters),
+        /* The 6 MSBs of register field used to distinguish initiator */
+        .mst_addr_mask = 0x7E0,
+};
+
 /* DRA7 data */
 static struct l3_target_data dra_l3_target_data_clk1[] = {
         {0x2a00, "AES1",},
@@ -274,7 +300,7 @@ static struct l3_flagmux_data dra_l3_flagmux_clk1 = {
 
 static struct l3_target_data dra_l3_target_data_clk2[] = {
         {0x0,   "HOST CLK1",},
-        {0x0,   "HOST CLK2",},
+        {0x800000, "HOST CLK2",},
         {0xdead, L3_TARGET_NOT_SUPPORTED,},
         {0x3400, "SHA2_2",},
         {0x0900, "BB2D",},
diff --git a/drivers/char/hw_random/bcm63xx-rng.c b/drivers/char/hw_random/bcm63xx-rng.c
index d1494ecd9e11..4b31f1387f37 100644
--- a/drivers/char/hw_random/bcm63xx-rng.c
+++ b/drivers/char/hw_random/bcm63xx-rng.c
@@ -57,7 +57,7 @@ static void bcm63xx_rng_cleanup(struct hwrng *rng)
         val &= ~RNG_EN;
         __raw_writel(val, priv->regs + RNG_CTRL);
 
-        clk_didsable_unprepare(prov->clk);
+        clk_disable_unprepare(priv->clk);
 }
 
 static int bcm63xx_rng_data_present(struct hwrng *rng, int wait)
@@ -97,14 +97,14 @@ static int bcm63xx_rng_probe(struct platform_device *pdev)
         priv->rng.name = pdev->name;
         priv->rng.init = bcm63xx_rng_init;
         priv->rng.cleanup = bcm63xx_rng_cleanup;
-        prov->rng.data_present = bcm63xx_rng_data_present;
+        priv->rng.data_present = bcm63xx_rng_data_present;
         priv->rng.data_read = bcm63xx_rng_data_read;
 
         priv->clk = devm_clk_get(&pdev->dev, "ipsec");
         if (IS_ERR(priv->clk)) {
-                error = PTR_ERR(priv->clk);
-                dev_err(&pdev->dev, "no clock for device: %d\n", error);
-                return error;
+                ret = PTR_ERR(priv->clk);
+                dev_err(&pdev->dev, "no clock for device: %d\n", ret);
+                return ret;
         }
 
         if (!devm_request_mem_region(&pdev->dev, r->start,
@@ -120,11 +120,11 @@ static int bcm63xx_rng_probe(struct platform_device *pdev)
                 return -ENOMEM;
         }
 
-        error = devm_hwrng_register(&pdev->dev, &priv->rng);
-        if (error) {
+        ret = devm_hwrng_register(&pdev->dev, &priv->rng);
+        if (ret) {
                 dev_err(&pdev->dev, "failed to register rng device: %d\n",
-                        error);
-                return error;
+                        ret);
+                return ret;
         }
 
         dev_info(&pdev->dev, "registered RNG driver\n");
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 9bb592872532..bf75f6361773 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -2000,7 +2000,7 @@ static int smi_ipmb_proc_show(struct seq_file *m, void *v)
                 seq_printf(m, " %x", intf->channels[i].address);
         seq_putc(m, '\n');
 
-        return seq_has_overflowed(m);
+        return 0;
 }
 
 static int smi_ipmb_proc_open(struct inode *inode, struct file *file)
@@ -2023,7 +2023,7 @@ static int smi_version_proc_show(struct seq_file *m, void *v)
                    ipmi_version_major(&intf->bmc->id),
                    ipmi_version_minor(&intf->bmc->id));
 
-        return seq_has_overflowed(m);
+        return 0;
 }
 
 static int smi_version_proc_open(struct inode *inode, struct file *file)
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 5e90a18afbaf..8a45e92ff60c 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -942,8 +942,7 @@ static void sender(void                *send_info,
                  * If we are running to completion, start it and run
                  * transactions until everything is clear.
                  */
-                smi_info->curr_msg = msg;
-                smi_info->waiting_msg = NULL;
+                smi_info->waiting_msg = msg;
 
                 /*
                  * Run to completion means we are single-threaded, no
@@ -2244,7 +2243,7 @@ static int ipmi_pnp_probe(struct pnp_dev *dev,
         acpi_handle handle;
         acpi_status status;
         unsigned long long tmp;
-        int rv;
+        int rv = -EINVAL;
 
         acpi_dev = pnp_acpi_device(dev);
         if (!acpi_dev)
@@ -2262,8 +2261,10 @@ static int ipmi_pnp_probe(struct pnp_dev *dev,
 
         /* _IFT tells us the interface type: KCS, BT, etc */
         status = acpi_evaluate_integer(handle, "_IFT", NULL, &tmp);
-        if (ACPI_FAILURE(status))
+        if (ACPI_FAILURE(status)) {
+                dev_err(&dev->dev, "Could not find ACPI IPMI interface type\n");
                 goto err_free;
+        }
 
         switch (tmp) {
         case 1:
@@ -2276,6 +2277,7 @@ static int ipmi_pnp_probe(struct pnp_dev *dev,
                 info->si_type = SI_BT;
                 break;
         case 4: /* SSIF, just ignore */
+                rv = -ENODEV;
                 goto err_free;
         default:
                 dev_info(&dev->dev, "unknown IPMI type %lld\n", tmp);
@@ -2336,7 +2338,7 @@ static int ipmi_pnp_probe(struct pnp_dev *dev,
 
 err_free:
         kfree(info);
-        return -EINVAL;
+        return rv;
 }
 
 static void ipmi_pnp_remove(struct pnp_dev *dev)
@@ -3080,7 +3082,7 @@ static int smi_type_proc_show(struct seq_file *m, void *v)
 
         seq_printf(m, "%s\n", si_to_str[smi->si_type]);
 
-        return seq_has_overflowed(m);
+        return 0;
 }
 
 static int smi_type_proc_open(struct inode *inode, struct file *file)
@@ -3153,7 +3155,7 @@ static int smi_params_proc_show(struct seq_file *m, void *v)
                    smi->irq,
                    smi->slave_addr);
 
-        return seq_has_overflowed(m);
+        return 0;
 }
 
 static int smi_params_proc_open(struct inode *inode, struct file *file)
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index f40e3bd2c69c..207689c444a8 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -31,7 +31,6 @@
  * interface into the I2C driver, I believe.
  */
 
-#include <linux/version.h>
 #if defined(MODVERSIONS)
 #include <linux/modversions.h>
 #endif
@@ -166,6 +165,9 @@ enum ssif_stat_indexes {
         /* Number of watchdog pretimeouts. */
         SSIF_STAT_watchdog_pretimeouts,
 
+        /* Number of alers received. */
+        SSIF_STAT_alerts,
+
         /* Always add statistics before this value, it must be last. */
         SSIF_NUM_STATS
 };
@@ -214,7 +216,16 @@ struct ssif_info {
 #define WDT_PRE_TIMEOUT_INT     0x08
         unsigned char       msg_flags;
 
+        u8                  global_enables;
         bool                has_event_buffer;
+        bool                supports_alert;
+
+        /*
+         * Used to tell what we should do with alerts.  If we are
+         * waiting on a response, read the data immediately.
+         */
+        bool                got_alert;
+        bool                waiting_alert;
 
         /*
          * If set to true, this will request events the next time the
@@ -478,13 +489,13 @@ static int ipmi_ssif_thread(void *data)
 
                 if (ssif_info->i2c_read_write == I2C_SMBUS_WRITE) {
                         result = i2c_smbus_write_block_data(
-                                ssif_info->client, SSIF_IPMI_REQUEST,
+                                ssif_info->client, ssif_info->i2c_command,
                                 ssif_info->i2c_data[0],
                                 ssif_info->i2c_data + 1);
                         ssif_info->done_handler(ssif_info, result, NULL, 0);
                 } else {
                         result = i2c_smbus_read_block_data(
-                                ssif_info->client, SSIF_IPMI_RESPONSE,
+                                ssif_info->client, ssif_info->i2c_command,
                                 ssif_info->i2c_data);
                         if (result < 0)
                                 ssif_info->done_handler(ssif_info, result,
@@ -518,15 +529,12 @@ static int ssif_i2c_send(struct ssif_info *ssif_info,
 static void msg_done_handler(struct ssif_info *ssif_info, int result,
                              unsigned char *data, unsigned int len);
 
-static void retry_timeout(unsigned long data)
+static void start_get(struct ssif_info *ssif_info)
 {
-        struct ssif_info *ssif_info = (void *) data;
         int rv;
 
-        if (ssif_info->stopping)
-                return;
-
         ssif_info->rtc_us_timer = 0;
+        ssif_info->multi_pos = 0;
 
         rv = ssif_i2c_send(ssif_info, msg_done_handler, I2C_SMBUS_READ,
                           SSIF_IPMI_RESPONSE,
@@ -540,6 +548,46 @@ static void retry_timeout(unsigned long data)
         }
 }
 
+static void retry_timeout(unsigned long data)
+{
+        struct ssif_info *ssif_info = (void *) data;
+        unsigned long oflags, *flags;
+        bool waiting;
+
+        if (ssif_info->stopping)
+                return;
+
+        flags = ipmi_ssif_lock_cond(ssif_info, &oflags);
+        waiting = ssif_info->waiting_alert;
+        ssif_info->waiting_alert = false;
+        ipmi_ssif_unlock_cond(ssif_info, flags);
+
+        if (waiting)
+                start_get(ssif_info);
+}
+
+
+static void ssif_alert(struct i2c_client *client, unsigned int data)
+{
+        struct ssif_info *ssif_info = i2c_get_clientdata(client);
+        unsigned long oflags, *flags;
+        bool do_get = false;
+
+        ssif_inc_stat(ssif_info, alerts);
+
+        flags = ipmi_ssif_lock_cond(ssif_info, &oflags);
+        if (ssif_info->waiting_alert) {
+                ssif_info->waiting_alert = false;
+                del_timer(&ssif_info->retry_timer);
+                do_get = true;
+        } else if (ssif_info->curr_msg) {
+                ssif_info->got_alert = true;
+        }
+        ipmi_ssif_unlock_cond(ssif_info, flags);
+        if (do_get)
+                start_get(ssif_info);
+}
+
 static int start_resend(struct ssif_info *ssif_info);
 
 static void msg_done_handler(struct ssif_info *ssif_info, int result,
@@ -559,9 +607,12 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result,
                 if (ssif_info->retries_left > 0) {
                         ssif_inc_stat(ssif_info, receive_retries);
 
+                        flags = ipmi_ssif_lock_cond(ssif_info, &oflags);
+                        ssif_info->waiting_alert = true;
+                        ssif_info->rtc_us_timer = SSIF_MSG_USEC;
                         mod_timer(&ssif_info->retry_timer,
                                   jiffies + SSIF_MSG_JIFFIES);
-                        ssif_info->rtc_us_timer = SSIF_MSG_USEC;
+                        ipmi_ssif_unlock_cond(ssif_info, flags);
                         return;
                 }
 
@@ -581,9 +632,9 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result,
                 ssif_inc_stat(ssif_info, received_message_parts);
 
                 /* Remove the multi-part read marker. */
-                for (i = 0; i < (len-2); i++)
-                        ssif_info->data[i] = data[i+2];
                 len -= 2;
+                for (i = 0; i < len; i++)
+                        ssif_info->data[i] = data[i+2];
                 ssif_info->multi_len = len;
                 ssif_info->multi_pos = 1;
 
@@ -610,9 +661,9 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result,
                         goto continue_op;
                 }
 
-                blocknum = data[ssif_info->multi_len];
+                blocknum = data[0];
 
-                if (ssif_info->multi_len+len-1 > IPMI_MAX_MSG_LENGTH) {
+                if (ssif_info->multi_len + len - 1 > IPMI_MAX_MSG_LENGTH) {
                         /* Received message too big, abort the operation. */
                         result = -E2BIG;
                         if (ssif_info->ssif_debug & SSIF_DEBUG_MSG)
@@ -622,15 +673,15 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result,
                 }
 
                 /* Remove the blocknum from the data. */
-                for (i = 0; i < (len-1); i++)
-                        ssif_info->data[i+ssif_info->multi_len] = data[i+1];
                 len--;
+                for (i = 0; i < len; i++)
+                        ssif_info->data[i + ssif_info->multi_len] = data[i + 1];
                 ssif_info->multi_len += len;
                 if (blocknum == 0xff) {
                         /* End of read */
                         len = ssif_info->multi_len;
                         data = ssif_info->data;
-                } else if ((blocknum+1) != ssif_info->multi_pos) {
+                } else if (blocknum + 1 != ssif_info->multi_pos) {
                         /*
                          * Out of sequence block, just abort.  Block
                          * numbers start at zero for the second block,
@@ -650,7 +701,7 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result,
                         if (rv < 0) {
                                 if (ssif_info->ssif_debug & SSIF_DEBUG_MSG)
                                         pr_info(PFX
-                                                "Error from i2c_non_blocking_op(2)\n");
+                                                "Error from ssif_i2c_send\n");
 
                                 result = -EIO;
                         } else
@@ -830,7 +881,11 @@ static void msg_written_handler(struct ssif_info *ssif_info, int result,
         }
 
         if (ssif_info->multi_data) {
-                /* In the middle of a multi-data write. */
+                /*
+                 * In the middle of a multi-data write.  See the comment
+                 * in the SSIF_MULTI_n_PART case in the probe function
+                 * for details on the intricacies of this.
+                 */
                 int left;
 
                 ssif_inc_stat(ssif_info, sent_messages_parts);
@@ -864,15 +919,32 @@ static void msg_written_handler(struct ssif_info *ssif_info, int result,
                         msg_done_handler(ssif_info, -EIO, NULL, 0);
                 }
         } else {
+                unsigned long oflags, *flags;
+                bool got_alert;
+
                 ssif_inc_stat(ssif_info, sent_messages);
                 ssif_inc_stat(ssif_info, sent_messages_parts);
 
-                /* Wait a jiffie then request the next message */
-                ssif_info->retries_left = SSIF_RECV_RETRIES;
-                ssif_info->rtc_us_timer = SSIF_MSG_PART_USEC;
-                mod_timer(&ssif_info->retry_timer,
-                          jiffies + SSIF_MSG_PART_JIFFIES);
-                return;
+                flags = ipmi_ssif_lock_cond(ssif_info, &oflags);
+                got_alert = ssif_info->got_alert;
+                if (got_alert) {
+                        ssif_info->got_alert = false;
+                        ssif_info->waiting_alert = false;
+                }
+
+                if (got_alert) {
+                        ipmi_ssif_unlock_cond(ssif_info, flags);
+                        /* The alert already happened, try now. */
+                        retry_timeout((unsigned long) ssif_info);
+                } else {
+                        /* Wait a jiffie then request the next message */
+                        ssif_info->waiting_alert = true;
+                        ssif_info->retries_left = SSIF_RECV_RETRIES;
+                        ssif_info->rtc_us_timer = SSIF_MSG_PART_USEC;
+                        mod_timer(&ssif_info->retry_timer,
+                                  jiffies + SSIF_MSG_PART_JIFFIES);
+                        ipmi_ssif_unlock_cond(ssif_info, flags);
+                }
         }
 }
 
@@ -881,6 +953,8 @@ static int start_resend(struct ssif_info *ssif_info)
         int rv;
         int command;
 
+        ssif_info->got_alert = false;
+
         if (ssif_info->data_len > 32) {
                 command = SSIF_IPMI_MULTI_PART_REQUEST_START;
                 ssif_info->multi_data = ssif_info->data;
@@ -915,7 +989,7 @@ static int start_send(struct ssif_info *ssif_info,
                 return -E2BIG;
 
         ssif_info->retries_left = SSIF_SEND_RETRIES;
-        memcpy(ssif_info->data+1, data, len);
+        memcpy(ssif_info->data + 1, data, len);
         ssif_info->data_len = len;
         return start_resend(ssif_info);
 }
@@ -1200,7 +1274,7 @@ static int smi_type_proc_show(struct seq_file *m, void *v)
 {
         seq_puts(m, "ssif\n");
 
-        return seq_has_overflowed(m);
+        return 0;
 }
 
 static int smi_type_proc_open(struct inode *inode, struct file *file)
@@ -1243,6 +1317,8 @@ static int smi_stats_proc_show(struct seq_file *m, void *v)
                    ssif_get_stat(ssif_info, events));
         seq_printf(m, "watchdog_pretimeouts:   %u\n",
                    ssif_get_stat(ssif_info, watchdog_pretimeouts));
+        seq_printf(m, "alerts:                 %u\n",
+                   ssif_get_stat(ssif_info, alerts));
         return 0;
 }
 
@@ -1258,6 +1334,23 @@ static const struct file_operations smi_stats_proc_ops = {
         .release        = single_release,
 };
 
+static int strcmp_nospace(char *s1, char *s2)
+{
+        while (*s1 && *s2) {
+                while (isspace(*s1))
+                        s1++;
+                while (isspace(*s2))
+                        s2++;
+                if (*s1 > *s2)
+                        return 1;
+                if (*s1 < *s2)
+                        return -1;
+                s1++;
+                s2++;
+        }
+        return 0;
+}
+
 static struct ssif_addr_info *ssif_info_find(unsigned short addr,
                                              char *adapter_name,
                                              bool match_null_name)
@@ -1272,8 +1365,10 @@ restart:
                                         /* One is NULL and one is not */
                                         continue;
                                 }
-                                if (strcmp(info->adapter_name, adapter_name))
-                                        /* Names to not match */
+                                if (adapter_name &&
+                                    strcmp_nospace(info->adapter_name,
+                                                   adapter_name))
+                                        /* Names do not match */
                                         continue;
                         }
                         found = info;
@@ -1306,6 +1401,12 @@ static bool check_acpi(struct ssif_info *ssif_info, struct device *dev)
         return false;
 }
 
+/*
+ * Global enables we care about.
+ */
+#define GLOBAL_ENABLES_MASK (IPMI_BMC_EVT_MSG_BUFF | IPMI_BMC_RCV_MSG_INTR | \
+                             IPMI_BMC_EVT_MSG_INTR)
+
 static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
         unsigned char     msg[3];
@@ -1391,13 +1492,33 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
                         break;
 
                 case SSIF_MULTI_2_PART:
-                        if (ssif_info->max_xmit_msg_size > 64)
-                                ssif_info->max_xmit_msg_size = 64;
+                        if (ssif_info->max_xmit_msg_size > 63)
+                                ssif_info->max_xmit_msg_size = 63;
                         if (ssif_info->max_recv_msg_size > 62)
                                 ssif_info->max_recv_msg_size = 62;
                         break;
 
                 case SSIF_MULTI_n_PART:
+                        /*
+                         * The specification is rather confusing at
+                         * this point, but I think I understand what
+                         * is meant.  At least I have a workable
+                         * solution.  With multi-part messages, you
+                         * cannot send a message that is a multiple of
+                         * 32-bytes in length, because the start and
+                         * middle messages are 32-bytes and the end
+                         * message must be at least one byte.  You
+                         * can't fudge on an extra byte, that would
+                         * screw up things like fru data writes.  So
+                         * we limit the length to 63 bytes.  That way
+                         * a 32-byte message gets sent as a single
+                         * part.  A larger message will be a 32-byte
+                         * start and the next message is always going
+                         * to be 1-31 bytes in length.  Not ideal, but
+                         * it should work.
+                         */
+                        if (ssif_info->max_xmit_msg_size > 63)
+                                ssif_info->max_xmit_msg_size = 63;
                         break;
 
                 default:
@@ -1407,7 +1528,7 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
         } else {
  no_support:
                 /* Assume no multi-part or PEC support */
-                pr_info(PFX "Error fetching SSIF: %d %d %2.2x, your system probably doesn't support this command so  using defaults\n",
+                pr_info(PFX "Error fetching SSIF: %d %d %2.2x, your system probably doesn't support this command so using defaults\n",
                        rv, len, resp[2]);
 
                 ssif_info->max_xmit_msg_size = 32;
@@ -1436,6 +1557,8 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
                 goto found;
         }
 
+        ssif_info->global_enables = resp[3];
+
         if (resp[3] & IPMI_BMC_EVT_MSG_BUFF) {
                 ssif_info->has_event_buffer = true;
                 /* buffer is already enabled, nothing to do. */
@@ -1444,18 +1567,37 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
 
         msg[0] = IPMI_NETFN_APP_REQUEST << 2;
         msg[1] = IPMI_SET_BMC_GLOBAL_ENABLES_CMD;
-        msg[2] = resp[3] | IPMI_BMC_EVT_MSG_BUFF;
+        msg[2] = ssif_info->global_enables | IPMI_BMC_EVT_MSG_BUFF;
         rv = do_cmd(client, 3, msg, &len, resp);
         if (rv || (len < 2)) {
-                pr_warn(PFX "Error getting global enables: %d %d %2.2x\n",
+                pr_warn(PFX "Error setting global enables: %d %d %2.2x\n",
                         rv, len, resp[2]);
                 rv = 0; /* Not fatal */
                 goto found;
         }
 
-        if (resp[2] == 0)
+        if (resp[2] == 0) {
                 /* A successful return means the event buffer is supported. */
                 ssif_info->has_event_buffer = true;
+                ssif_info->global_enables |= IPMI_BMC_EVT_MSG_BUFF;
+        }
+
+        msg[0] = IPMI_NETFN_APP_REQUEST << 2;
+        msg[1] = IPMI_SET_BMC_GLOBAL_ENABLES_CMD;
+        msg[2] = ssif_info->global_enables | IPMI_BMC_RCV_MSG_INTR;
+        rv = do_cmd(client, 3, msg, &len, resp);
+        if (rv || (len < 2)) {
+                pr_warn(PFX "Error setting global enables: %d %d %2.2x\n",
+                        rv, len, resp[2]);
+                rv = 0; /* Not fatal */
+                goto found;
+        }
+
+        if (resp[2] == 0) {
+                /* A successful return means the alert is supported. */
+                ssif_info->supports_alert = true;
+                ssif_info->global_enables |= IPMI_BMC_RCV_MSG_INTR;
+        }
 
  found:
         ssif_info->intf_num = atomic_inc_return(&next_intf);
@@ -1813,6 +1955,7 @@ static struct i2c_driver ssif_i2c_driver = {
         },
         .probe          = ssif_probe,
         .remove         = ssif_remove,
+        .alert          = ssif_alert,
         .id_table       = ssif_id,
         .detect         = ssif_detect
 };
@@ -1832,7 +1975,7 @@ static int init_ipmi_ssif(void)
                 rv = new_ssif_client(addr[i], adapter_name[i],
                                      dbg[i], slave_addrs[i],
                                      SI_HARDCODED);
-                if (!rv)
+                if (rv)
                         pr_err(PFX
                                "Couldn't add hardcoded device at addr 0x%x\n",
                                addr[i]);
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 7a73a279e179..61c417b9e53f 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -158,9 +158,18 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
         int entered_state;
 
         struct cpuidle_state *target_state = &drv->states[index];
+        bool broadcast = !!(target_state->flags & CPUIDLE_FLAG_TIMER_STOP);
         ktime_t time_start, time_end;
         s64 diff;
 
+        /*
+         * Tell the time framework to switch to a broadcast timer because our
+         * local timer will be shut down.  If a local timer is used from another
+         * CPU as a broadcast timer, this call may fail if it is not available.
+         */
+        if (broadcast && tick_broadcast_enter())
+                return -EBUSY;
+
         trace_cpu_idle_rcuidle(index, dev->cpu);
         time_start = ktime_get();
 
@@ -169,6 +178,13 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
         time_end = ktime_get();
         trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
 
+        if (broadcast) {
+                if (WARN_ON_ONCE(!irqs_disabled()))
+                        local_irq_disable();
+
+                tick_broadcast_exit();
+        }
+
         if (!cpuidle_state_is_coupled(dev, drv, entered_state))
                 local_irq_enable();
 
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index fd7ac13f2574..bda2cb06dc7a 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -437,6 +437,7 @@ config IMG_MDC_DMA
 
 config XGENE_DMA
         tristate "APM X-Gene DMA support"
+        depends on ARCH_XGENE || COMPILE_TEST
         select DMA_ENGINE
         select DMA_ENGINE_RAID
         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 0e035a8cf401..2890d744bb1b 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -571,11 +571,15 @@ struct dma_chan *dma_get_any_slave_channel(struct dma_device *device)
 
         chan = private_candidate(&mask, device, NULL, NULL);
         if (chan) {
+                dma_cap_set(DMA_PRIVATE, device->cap_mask);
+                device->privatecnt++;
                 err = dma_chan_get(chan);
                 if (err) {
                         pr_debug("%s: failed to get %s: (%d)\n",
                                 __func__, dma_chan_name(chan), err);
                         chan = NULL;
+                        if (--device->privatecnt == 0)
+                                dma_cap_clear(DMA_PRIVATE, device->cap_mask);
                 }
         }
 
diff --git a/drivers/dma/sh/usb-dmac.c b/drivers/dma/sh/usb-dmac.c
index f705798ce3eb..ebd8a5f398b0 100644
--- a/drivers/dma/sh/usb-dmac.c
+++ b/drivers/dma/sh/usb-dmac.c
@@ -673,6 +673,7 @@ static struct dma_chan *usb_dmac_of_xlate(struct of_phandle_args *dma_spec,
  * Power management
  */
 
+#ifdef CONFIG_PM
 static int usb_dmac_runtime_suspend(struct device *dev)
 {
         struct usb_dmac *dmac = dev_get_drvdata(dev);
@@ -690,6 +691,7 @@ static int usb_dmac_runtime_resume(struct device *dev)
 
         return usb_dmac_init(dmac);
 }
+#endif /* CONFIG_PM */
 
 static const struct dev_pm_ops usb_dmac_pm = {
         SET_RUNTIME_PM_OPS(usb_dmac_runtime_suspend, usb_dmac_runtime_resume,
diff --git a/drivers/firmware/efi/runtime-map.c b/drivers/firmware/efi/runtime-map.c
index 87b8e3b900d2..5c55227a34c8 100644
--- a/drivers/firmware/efi/runtime-map.c
+++ b/drivers/firmware/efi/runtime-map.c
@@ -120,7 +120,8 @@ add_sysfs_runtime_map_entry(struct kobject *kobj, int nr)
         entry = kzalloc(sizeof(*entry), GFP_KERNEL);
         if (!entry) {
                 kset_unregister(map_kset);
-                return entry;
+                map_kset = NULL;
+                return ERR_PTR(-ENOMEM);
         }
 
         memcpy(&entry->md, efi_runtime_map + nr * efi_memdesc_size,
@@ -132,6 +133,7 @@ add_sysfs_runtime_map_entry(struct kobject *kobj, int nr)
         if (ret) {
                 kobject_put(&entry->kobj);
                 kset_unregister(map_kset);
+                map_kset = NULL;
                 return ERR_PTR(ret);
         }
 
@@ -195,8 +197,6 @@ out_add_entry:
                 entry = *(map_entries + j);
                 kobject_put(&entry->kobj);
         }
-        if (map_kset)
-                kset_unregister(map_kset);
 out:
         return ret;
 }
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index cd1d5bf48f36..b232397ad7ec 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1054,38 +1054,8 @@ static void omap_gpio_mod_init(struct gpio_bank *bank)
                 dev_err(bank->dev, "Could not get gpio dbck\n");
 }
 
-static void
-omap_mpuio_alloc_gc(struct gpio_bank *bank, unsigned int irq_start,
-                    unsigned int num)
-{
-        struct irq_chip_generic *gc;
-        struct irq_chip_type *ct;
-
-        gc = irq_alloc_generic_chip("MPUIO", 1, irq_start, bank->base,
-                                    handle_simple_irq);
-        if (!gc) {
-                dev_err(bank->dev, "Memory alloc failed for gc\n");
-                return;
-        }
-
-        ct = gc->chip_types;
-
-        /* NOTE: No ack required, reading IRQ status clears it. */
-        ct->chip.irq_mask = irq_gc_mask_set_bit;
-        ct->chip.irq_unmask = irq_gc_mask_clr_bit;
-        ct->chip.irq_set_type = omap_gpio_irq_type;
-
-        if (bank->regs->wkup_en)
-                ct->chip.irq_set_wake = omap_gpio_wake_enable;
-
-        ct->regs.mask = OMAP_MPUIO_GPIO_INT / bank->stride;
-        irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE,
-                               IRQ_NOREQUEST | IRQ_NOPROBE, 0);
-}
-
 static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc)
 {
-        int j;
         static int gpio;
         int irq_base = 0;
         int ret;
@@ -1132,6 +1102,15 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc)
         }
 #endif
 
+        /* MPUIO is a bit different, reading IRQ status clears it */
+        if (bank->is_mpuio) {
+                irqc->irq_ack = dummy_irq_chip.irq_ack;
+                irqc->irq_mask = irq_gc_mask_set_bit;
+                irqc->irq_unmask = irq_gc_mask_clr_bit;
+                if (!bank->regs->wkup_en)
+                        irqc->irq_set_wake = NULL;
+        }
+
         ret = gpiochip_irqchip_add(&bank->chip, irqc,
                                    irq_base, omap_gpio_irq_handler,
                                    IRQ_TYPE_NONE);
@@ -1145,15 +1124,6 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc)
         gpiochip_set_chained_irqchip(&bank->chip, irqc,
                                      bank->irq, omap_gpio_irq_handler);
 
-        for (j = 0; j < bank->width; j++) {
-                int irq = irq_find_mapping(bank->chip.irqdomain, j);
-                if (bank->is_mpuio) {
-                        omap_mpuio_alloc_gc(bank, irq, bank->width);
-                        irq_set_chip_and_handler(irq, NULL, NULL);
-                        set_irq_flags(irq, 0);
-                }
-        }
-
         return 0;
 }
 
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index d2303d50f561..725d16138b74 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -550,7 +550,7 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address,
 
         length = min(agpio->pin_table_length, (u16)(pin_index + bits));
         for (i = pin_index; i < length; ++i) {
-                unsigned pin = agpio->pin_table[i];
+                int pin = agpio->pin_table[i];
                 struct acpi_gpio_connection *conn;
                 struct gpio_desc *desc;
                 bool found;
diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index 7722ed53bd65..af3bc7a8033b 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -551,6 +551,7 @@ static struct class gpio_class = {
  */
 int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
 {
+        struct gpio_chip        *chip;
         unsigned long           flags;
         int                     status;
         const char              *ioname = NULL;
@@ -568,8 +569,16 @@ int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
                 return -EINVAL;
         }
 
+        chip = desc->chip;
+
         mutex_lock(&sysfs_lock);
 
+        /* check if chip is being removed */
+        if (!chip || !chip->exported) {
+                status = -ENODEV;
+                goto fail_unlock;
+        }
+
         spin_lock_irqsave(&gpio_lock, flags);
         if (!test_bit(FLAG_REQUESTED, &desc->flags) ||
              test_bit(FLAG_EXPORT, &desc->flags)) {
@@ -783,12 +792,15 @@ void gpiochip_unexport(struct gpio_chip *chip)
 {
         int                     status;
         struct device           *dev;
+        struct gpio_desc *desc;
+        unsigned int i;
 
         mutex_lock(&sysfs_lock);
         dev = class_find_device(&gpio_class, NULL, chip, match_export);
         if (dev) {
                 put_device(dev);
                 device_unregister(dev);
+                /* prevent further gpiod exports */
                 chip->exported = false;
                 status = 0;
         } else
@@ -797,6 +809,13 @@ void gpiochip_unexport(struct gpio_chip *chip)
 
         if (status)
                 chip_dbg(chip, "%s: status %d\n", __func__, status);
+
+        /* unregister gpiod class devices owned by sysfs */
+        for (i = 0; i < chip->ngpio; i++) {
+                desc = &chip->desc[i];
+                if (test_and_clear_bit(FLAG_SYSFS, &desc->flags))
+                        gpiod_free(desc);
+        }
 }
 
 static int __init gpiolib_sysfs_init(void)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 69af73f15310..596ee5cd3b84 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -430,9 +430,10 @@ static int unregister_process_nocpsch(struct device_queue_manager *dqm,
 
         BUG_ON(!dqm || !qpd);
 
-        BUG_ON(!list_empty(&qpd->queues_list));
+        pr_debug("In func %s\n", __func__);
 
-        pr_debug("kfd: In func %s\n", __func__);
+        pr_debug("qpd->queues_list is %s\n",
+                        list_empty(&qpd->queues_list) ? "empty" : "not empty");
 
         retval = 0;
         mutex_lock(&dqm->lock);
@@ -882,6 +883,8 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
                 return -ENOMEM;
         }
 
+        init_sdma_vm(dqm, q, qpd);
+
         retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,
                                 &q->gart_mqd_addr, &q->properties);
         if (retval != 0)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index 661c6605d31b..e469c4b2e8cc 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -728,9 +728,9 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr,
                 sysfs_show_32bit_prop(buffer, "max_engine_clk_fcompute",
                         dev->gpu->kfd2kgd->get_max_engine_clock_in_mhz(
                                         dev->gpu->kgd));
+
                 sysfs_show_64bit_prop(buffer, "local_mem_size",
-                        dev->gpu->kfd2kgd->get_vmem_size(
-                                        dev->gpu->kgd));
+                                (unsigned long long int) 0);
 
                 sysfs_show_32bit_prop(buffer, "fw_version",
                         dev->gpu->kfd2kgd->get_fw_version(
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index c8a34476570a..af9662e58272 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -131,12 +131,11 @@ static void drm_update_vblank_count(struct drm_device *dev, int crtc)
 
         /* Reinitialize corresponding vblank timestamp if high-precision query
          * available. Skip this step if query unsupported or failed. Will
-         * reinitialize delayed at next vblank interrupt in that case.
+         * reinitialize delayed at next vblank interrupt in that case and
+         * assign 0 for now, to mark the vblanktimestamp as invalid.
          */
-        if (rc) {
-                tslot = atomic_read(&vblank->count) + diff;
-                vblanktimestamp(dev, crtc, tslot) = t_vblank;
-        }
+        tslot = atomic_read(&vblank->count) + diff;
+        vblanktimestamp(dev, crtc, tslot) = rc ? t_vblank : (struct timeval) {0, 0};
 
         smp_mb__before_atomic();
         atomic_add(diff, &vblank->count);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 3da1af46625c..773d1d24e604 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6074,6 +6074,8 @@ enum skl_disp_power_wells {
 #define  GTFIFOCTL                              0x120008
 #define    GT_FIFO_FREE_ENTRIES_MASK            0x7f
 #define    GT_FIFO_NUM_RESERVED_ENTRIES         20
+#define    GT_FIFO_CTL_BLOCK_ALL_POLICY_STALL   (1 << 12)
+#define    GT_FIFO_CTL_RC6_POLICY_STALL         (1 << 11)
 
 #define  HSW_IDICR                              0x9008
 #define    IDIHASHMSK(x)                        (((x) & 0x3f) << 16)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index d547d9c8dda2..d0f3cbc87474 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13635,9 +13635,6 @@ static const struct intel_dmi_quirk intel_dmi_quirks[] = {
 };
 
 static struct intel_quirk intel_quirks[] = {
-        /* HP Mini needs pipe A force quirk (LP: #322104) */
-        { 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
-
         /* Toshiba Protege R-205, S-209 needs pipe A force quirk */
         { 0x2592, 0x1179, 0x0001, quirk_pipea_force },
 
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index d0237102c27e..f27346e907b1 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1348,7 +1348,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
 
         pipe_config->has_dp_encoder = true;
         pipe_config->has_drrs = false;
-        pipe_config->has_audio = intel_dp->has_audio;
+        pipe_config->has_audio = intel_dp->has_audio && port != PORT_A;
 
         if (is_edp(intel_dp) && intel_connector->panel.fixed_mode) {
                 intel_fixed_panel_mode(intel_connector->panel.fixed_mode,
@@ -2211,8 +2211,8 @@ static void intel_dp_get_config(struct intel_encoder *encoder,
         int dotclock;
 
         tmp = I915_READ(intel_dp->output_reg);
-        if (tmp & DP_AUDIO_OUTPUT_ENABLE)
-                pipe_config->has_audio = true;
+
+        pipe_config->has_audio = tmp & DP_AUDIO_OUTPUT_ENABLE && port != PORT_A;
 
         if ((port == PORT_A) || !HAS_PCH_CPT(dev)) {
                 if (tmp & DP_SYNC_HS_HIGH)
@@ -3812,7 +3812,8 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
                         if (val == 0)
                                 break;
 
-                        intel_dp->sink_rates[i] = val * 200;
+                        /* Value read is in kHz while drm clock is saved in deca-kHz */
+                        intel_dp->sink_rates[i] = (val * 200) / 10;
                 }
                 intel_dp->num_sink_rates = i;
         }
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 5abda1d2c018..fbcc7dff0d63 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -813,12 +813,28 @@ static int intel_dual_link_lvds_callback(const struct dmi_system_id *id)
 static const struct dmi_system_id intel_dual_link_lvds[] = {
         {
                 .callback = intel_dual_link_lvds_callback,
-                .ident = "Apple MacBook Pro (Core i5/i7 Series)",
+                .ident = "Apple MacBook Pro 15\" (2010)",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro6,2"),
+                },
+        },
+        {
+                .callback = intel_dual_link_lvds_callback,
+                .ident = "Apple MacBook Pro 15\" (2011)",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
                         DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"),
                 },
         },
+        {
+                .callback = intel_dual_link_lvds_callback,
+                .ident = "Apple MacBook Pro 15\" (2012)",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro9,1"),
+                },
+        },
         { }     /* terminating entry */
 };
 
@@ -848,6 +864,11 @@ static bool compute_is_dual_link_lvds(struct intel_lvds_encoder *lvds_encoder)
         if (i915.lvds_channel_mode > 0)
                 return i915.lvds_channel_mode == 2;
 
+        /* single channel LVDS is limited to 112 MHz */
+        if (lvds_encoder->attached_connector->base.panel.fixed_mode->clock
+            > 112999)
+                return true;
+
         if (dmi_check_system(intel_dual_link_lvds))
                 return true;
 
@@ -1111,6 +1132,8 @@ void intel_lvds_init(struct drm_device *dev)
 out:
         mutex_unlock(&dev->mode_config.mutex);
 
+        intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode);
+
         lvds_encoder->is_dual_link = compute_is_dual_link_lvds(lvds_encoder);
         DRM_DEBUG_KMS("detected %s-link lvds configuration\n",
                       lvds_encoder->is_dual_link ? "dual" : "single");
@@ -1125,7 +1148,6 @@ out:
         }
         drm_connector_register(connector);
 
-        intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode);
         intel_panel_setup_backlight(connector, INVALID_PIPE);
 
         return;
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index ab5cc94588e1..ff2a74651dd4 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -360,6 +360,14 @@ static void __intel_uncore_early_sanitize(struct drm_device *dev,
                 __raw_i915_write32(dev_priv, GTFIFODBG,
                                    __raw_i915_read32(dev_priv, GTFIFODBG));
 
+        /* WaDisableShadowRegForCpd:chv */
+        if (IS_CHERRYVIEW(dev)) {
+                __raw_i915_write32(dev_priv, GTFIFOCTL,
+                                   __raw_i915_read32(dev_priv, GTFIFOCTL) |
+                                   GT_FIFO_CTL_BLOCK_ALL_POLICY_STALL |
+                                   GT_FIFO_CTL_RC6_POLICY_STALL);
+        }
+
         intel_uncore_forcewake_reset(dev, restore_forcewake);
 }
 
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index dac78ad24b31..42b2ea3fdcf3 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -580,6 +580,9 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
                 else
                         radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
 
+                /* if there is no audio, set MINM_OVER_MAXP  */
+                if (!drm_detect_monitor_audio(radeon_connector_edid(connector)))
+                        radeon_crtc->pll_flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;
                 if (rdev->family < CHIP_RV770)
                         radeon_crtc->pll_flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;
                 /* use frac fb div on APUs */
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index f57c1ab617bc..dd39f434b4a7 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1761,17 +1761,15 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode)
         struct drm_device *dev = encoder->dev;
         struct radeon_device *rdev = dev->dev_private;
         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-        struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
         int encoder_mode = atombios_get_encoder_mode(encoder);
 
         DRM_DEBUG_KMS("encoder dpms %d to mode %d, devices %08x, active_devices %08x\n",
                   radeon_encoder->encoder_id, mode, radeon_encoder->devices,
                   radeon_encoder->active_device);
 
-        if (connector && (radeon_audio != 0) &&
+        if ((radeon_audio != 0) &&
             ((encoder_mode == ATOM_ENCODER_MODE_HDMI) ||
-             (ENCODER_MODE_IS_DP(encoder_mode) &&
-              drm_detect_monitor_audio(radeon_connector_edid(connector)))))
+             ENCODER_MODE_IS_DP(encoder_mode)))
                 radeon_audio_dpms(encoder, mode);
 
         switch (radeon_encoder->encoder_id) {
diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c
index 3adc2afe32aa..68fd9fc677e3 100644
--- a/drivers/gpu/drm/radeon/dce6_afmt.c
+++ b/drivers/gpu/drm/radeon/dce6_afmt.c
@@ -295,28 +295,3 @@ void dce6_dp_audio_set_dto(struct radeon_device *rdev,
                 WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
         }
 }
-
-void dce6_dp_enable(struct drm_encoder *encoder, bool enable)
-{
-        struct drm_device *dev = encoder->dev;
-        struct radeon_device *rdev = dev->dev_private;
-        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-        struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-
-        if (!dig || !dig->afmt)
-                return;
-
-        if (enable) {
-                WREG32(EVERGREEN_DP_SEC_TIMESTAMP + dig->afmt->offset,
-                       EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
-                WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset,
-                       EVERGREEN_DP_SEC_ASP_ENABLE |            /* Audio packet transmission */
-                       EVERGREEN_DP_SEC_ATP_ENABLE |            /* Audio timestamp packet transmission */
-                       EVERGREEN_DP_SEC_AIP_ENABLE |            /* Audio infoframe packet transmission */
-                       EVERGREEN_DP_SEC_STREAM_ENABLE); /* Master enable for secondary stream engine */
-        } else {
-                WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset, 0);
-        }
-
-        dig->afmt->enabled = enable;
-}
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c
index c18d4ecbd95d..0926739c9fa7 100644
--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -219,13 +219,9 @@ void evergreen_set_avi_packet(struct radeon_device *rdev, u32 offset,
         WREG32(AFMT_AVI_INFO3 + offset,
                 frame[0xC] | (frame[0xD] << 8) | (buffer[1] << 24));
 
-        WREG32_OR(HDMI_INFOFRAME_CONTROL0 + offset,
-                HDMI_AVI_INFO_SEND |    /* enable AVI info frames */
-                HDMI_AVI_INFO_CONT);    /* required for audio info values to be updated */
-
         WREG32_P(HDMI_INFOFRAME_CONTROL1 + offset,
-                HDMI_AVI_INFO_LINE(2),  /* anything other than 0 */
-                ~HDMI_AVI_INFO_LINE_MASK);
+                 HDMI_AVI_INFO_LINE(2), /* anything other than 0 */
+                 ~HDMI_AVI_INFO_LINE_MASK);
 }
 
 void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
@@ -370,9 +366,13 @@ void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset)
         WREG32(AFMT_AUDIO_PACKET_CONTROL2 + offset,
                 AFMT_AUDIO_CHANNEL_ENABLE(0xff));
 
+        WREG32(HDMI_AUDIO_PACKET_CONTROL + offset,
+               HDMI_AUDIO_DELAY_EN(1) | /* set the default audio delay */
+               HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
+
         /* allow 60958 channel status and send audio packets fields to be updated */
-        WREG32(AFMT_AUDIO_PACKET_CONTROL + offset,
-                AFMT_AUDIO_SAMPLE_SEND | AFMT_RESET_FIFO_WHEN_AUDIO_DIS | AFMT_60958_CS_UPDATE);
+        WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + offset,
+                  AFMT_RESET_FIFO_WHEN_AUDIO_DIS | AFMT_60958_CS_UPDATE);
 }
 
 
@@ -398,17 +398,26 @@ void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
                 return;
 
         if (enable) {
-                WREG32(HDMI_INFOFRAME_CONTROL1 + dig->afmt->offset,
-                       HDMI_AUDIO_INFO_LINE(2)); /* anything other than 0 */
-
-                WREG32(HDMI_AUDIO_PACKET_CONTROL + dig->afmt->offset,
-                       HDMI_AUDIO_DELAY_EN(1) | /* set the default audio delay */
-                       HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
+                struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 
-                WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
-                       HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
-                       HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
+                if (drm_detect_monitor_audio(radeon_connector_edid(connector))) {
+                        WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
+                               HDMI_AVI_INFO_SEND | /* enable AVI info frames */
+                               HDMI_AVI_INFO_CONT | /* required for audio info values to be updated */
+                               HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
+                               HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
+                        WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
+                                  AFMT_AUDIO_SAMPLE_SEND);
+                } else {
+                        WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
+                               HDMI_AVI_INFO_SEND | /* enable AVI info frames */
+                               HDMI_AVI_INFO_CONT); /* required for audio info values to be updated */
+                        WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
+                                   ~AFMT_AUDIO_SAMPLE_SEND);
+                }
         } else {
+                WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
+                           ~AFMT_AUDIO_SAMPLE_SEND);
                 WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset, 0);
         }
 
@@ -424,20 +433,24 @@ void evergreen_dp_enable(struct drm_encoder *encoder, bool enable)
         struct radeon_device *rdev = dev->dev_private;
         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
+        struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 
         if (!dig || !dig->afmt)
                 return;
 
-        if (enable) {
+        if (enable && drm_detect_monitor_audio(radeon_connector_edid(connector))) {
                 struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
                 struct radeon_connector_atom_dig *dig_connector;
                 uint32_t val;
 
+                WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
+                          AFMT_AUDIO_SAMPLE_SEND);
+
                 WREG32(EVERGREEN_DP_SEC_TIMESTAMP + dig->afmt->offset,
                        EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
 
-                if (radeon_connector->con_priv) {
+                if (!ASIC_IS_DCE6(rdev) && radeon_connector->con_priv) {
                         dig_connector = radeon_connector->con_priv;
                         val = RREG32(EVERGREEN_DP_SEC_AUD_N + dig->afmt->offset);
                         val &= ~EVERGREEN_DP_SEC_N_BASE_MULTIPLE(0xf);
@@ -457,6 +470,8 @@ void evergreen_dp_enable(struct drm_encoder *encoder, bool enable)
                         EVERGREEN_DP_SEC_STREAM_ENABLE);        /* Master enable for secondary stream engine */
         } else {
                 WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset, 0);
+                WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
+                           ~AFMT_AUDIO_SAMPLE_SEND);
         }
 
         dig->afmt->enabled = enable;
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index dd6606b8e23c..e85894ade95c 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -228,12 +228,13 @@ void r600_set_avi_packet(struct radeon_device *rdev, u32 offset,
         WREG32(HDMI0_AVI_INFO3 + offset,
                 frame[0xC] | (frame[0xD] << 8) | (buffer[1] << 24));
 
+        WREG32_OR(HDMI0_INFOFRAME_CONTROL1 + offset,
+                  HDMI0_AVI_INFO_LINE(2));      /* anything other than 0 */
+
         WREG32_OR(HDMI0_INFOFRAME_CONTROL0 + offset,
-                HDMI0_AVI_INFO_SEND |   /* enable AVI info frames */
-                HDMI0_AVI_INFO_CONT);   /* send AVI info frames every frame/field */
+                  HDMI0_AVI_INFO_SEND | /* enable AVI info frames */
+                  HDMI0_AVI_INFO_CONT); /* send AVI info frames every frame/field */
 
-        WREG32_OR(HDMI0_INFOFRAME_CONTROL1 + offset,
-                HDMI0_AVI_INFO_LINE(2));        /* anything other than 0 */
 }
 
 /*
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index d2abe481954f..46eb0fa75a61 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1673,7 +1673,6 @@ struct radeon_uvd {
         struct radeon_bo        *vcpu_bo;
         void                    *cpu_addr;
         uint64_t                gpu_addr;
-        void                    *saved_bo;
         atomic_t                handles[RADEON_MAX_UVD_HANDLES];
         struct drm_file         *filp[RADEON_MAX_UVD_HANDLES];
         unsigned                img_size[RADEON_MAX_UVD_HANDLES];
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index fafd8ce4d58f..8dbf5083c4ff 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1202,7 +1202,7 @@ static struct radeon_asic rs780_asic = {
 static struct radeon_asic_ring rv770_uvd_ring = {
         .ib_execute = &uvd_v1_0_ib_execute,
         .emit_fence = &uvd_v2_2_fence_emit,
-        .emit_semaphore = &uvd_v1_0_semaphore_emit,
+        .emit_semaphore = &uvd_v2_2_semaphore_emit,
         .cs_parse = &radeon_uvd_cs_parse,
         .ring_test = &uvd_v1_0_ring_test,
         .ib_test = &uvd_v1_0_ib_test,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index cf0a90bb61ca..a3ca8cd305c5 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -949,6 +949,10 @@ void uvd_v1_0_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 int uvd_v2_2_resume(struct radeon_device *rdev);
 void uvd_v2_2_fence_emit(struct radeon_device *rdev,
                          struct radeon_fence *fence);
+bool uvd_v2_2_semaphore_emit(struct radeon_device *rdev,
+                             struct radeon_ring *ring,
+                             struct radeon_semaphore *semaphore,
+                             bool emit_wait);
 
 /* uvd v3.1 */
 bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev,
diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index 48d49e651a30..dcb779647c57 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -102,7 +102,6 @@ static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
 void r600_hdmi_enable(struct drm_encoder *encoder, bool enable);
 void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable);
 void evergreen_dp_enable(struct drm_encoder *encoder, bool enable);
-void dce6_dp_enable(struct drm_encoder *encoder, bool enable);
 
 static const u32 pin_offsets[7] =
 {
@@ -240,7 +239,7 @@ static struct radeon_audio_funcs dce6_dp_funcs = {
         .set_avi_packet = evergreen_set_avi_packet,
         .set_audio_packet = dce4_set_audio_packet,
         .mode_set = radeon_audio_dp_mode_set,
-        .dpms = dce6_dp_enable,
+        .dpms = evergreen_dp_enable,
 };
 
 static void radeon_audio_interface_init(struct radeon_device *rdev)
@@ -461,30 +460,37 @@ void radeon_audio_detect(struct drm_connector *connector,
         if (!connector || !connector->encoder)
                 return;
 
+        if (!radeon_encoder_is_digital(connector->encoder))
+                return;
+
         rdev = connector->encoder->dev->dev_private;
+
+        if (!radeon_audio_chipset_supported(rdev))
+                return;
+
         radeon_encoder = to_radeon_encoder(connector->encoder);
         dig = radeon_encoder->enc_priv;
 
-        if (status == connector_status_connected) {
-                struct radeon_connector *radeon_connector;
-                int sink_type;
-
-                if (!drm_detect_monitor_audio(radeon_connector_edid(connector))) {
-                        radeon_encoder->audio = NULL;
-                        return;
-                }
+        if (!dig->afmt)
+                return;
 
-                radeon_connector = to_radeon_connector(connector);
-                sink_type = radeon_dp_getsinktype(radeon_connector);
+        if (status == connector_status_connected) {
+                struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 
                 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
-                        sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
+                    radeon_dp_getsinktype(radeon_connector) ==
+                    CONNECTOR_OBJECT_ID_DISPLAYPORT)
                         radeon_encoder->audio = rdev->audio.dp_funcs;
                 else
                         radeon_encoder->audio = rdev->audio.hdmi_funcs;
 
                 dig->afmt->pin = radeon_audio_get_pin(connector->encoder);
-                radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
+                if (drm_detect_monitor_audio(radeon_connector_edid(connector))) {
+                        radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
+                } else {
+                        radeon_audio_enable(rdev, dig->afmt->pin, 0);
+                        dig->afmt->pin = NULL;
+                }
         } else {
                 radeon_audio_enable(rdev, dig->afmt->pin, 0);
                 dig->afmt->pin = NULL;
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index cebb65e07e1d..d17d251dbd4f 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1379,8 +1379,10 @@ out:
         /* updated in get modes as well since we need to know if it's analog or digital */
         radeon_connector_update_scratch_regs(connector, ret);
 
-        if (radeon_audio != 0)
+        if (radeon_audio != 0) {
+                radeon_connector_get_edid(connector);
                 radeon_audio_detect(connector, ret);
+        }
 
 exit:
         pm_runtime_mark_last_busy(connector->dev->dev);
@@ -1717,8 +1719,10 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
 
         radeon_connector_update_scratch_regs(connector, ret);
 
-        if (radeon_audio != 0)
+        if (radeon_audio != 0) {
+                radeon_connector_get_edid(connector);
                 radeon_audio_detect(connector, ret);
+        }
 
 out:
         pm_runtime_mark_last_busy(connector->dev->dev);
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 4d0f96cc3da4..ab39b85e0f76 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -88,7 +88,7 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
         p->dma_reloc_idx = 0;
         /* FIXME: we assume that each relocs use 4 dwords */
         p->nrelocs = chunk->length_dw / 4;
-        p->relocs = kcalloc(p->nrelocs, sizeof(struct radeon_bo_list), GFP_KERNEL);
+        p->relocs = drm_calloc_large(p->nrelocs, sizeof(struct radeon_bo_list));
         if (p->relocs == NULL) {
                 return -ENOMEM;
         }
@@ -428,7 +428,7 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error, bo
                 }
         }
         kfree(parser->track);
-        kfree(parser->relocs);
+        drm_free_large(parser->relocs);
         drm_free_large(parser->vm_bos);
         for (i = 0; i < parser->nchunks; i++)
                 drm_free_large(parser->chunks[i].kdata);
diff --git a/drivers/gpu/drm/radeon/radeon_mn.c b/drivers/gpu/drm/radeon/radeon_mn.c
index 01701376b239..eef006c48584 100644
--- a/drivers/gpu/drm/radeon/radeon_mn.c
+++ b/drivers/gpu/drm/radeon/radeon_mn.c
@@ -135,28 +135,31 @@ static void radeon_mn_invalidate_range_start(struct mmu_notifier *mn,
         while (it) {
                 struct radeon_mn_node *node;
                 struct radeon_bo *bo;
-                int r;
+                long r;
 
                 node = container_of(it, struct radeon_mn_node, it);
                 it = interval_tree_iter_next(it, start, end);
 
                 list_for_each_entry(bo, &node->bos, mn_list) {
 
+                        if (!bo->tbo.ttm || bo->tbo.ttm->state != tt_bound)
+                                continue;
+
                         r = radeon_bo_reserve(bo, true);
                         if (r) {
-                                DRM_ERROR("(%d) failed to reserve user bo\n", r);
+                                DRM_ERROR("(%ld) failed to reserve user bo\n", r);
                                 continue;
                         }
 
                         r = reservation_object_wait_timeout_rcu(bo->tbo.resv,
                                 true, false, MAX_SCHEDULE_TIMEOUT);
-                        if (r)
-                                DRM_ERROR("(%d) failed to wait for user bo\n", r);
+                        if (r <= 0)
+                                DRM_ERROR("(%ld) failed to wait for user bo\n", r);
 
                         radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_CPU);
                         r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
                         if (r)
-                                DRM_ERROR("(%d) failed to validate user bo\n", r);
+                                DRM_ERROR("(%ld) failed to validate user bo\n", r);
 
                         radeon_bo_unreserve(bo);
                 }
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index b292aca0f342..edafd3c2b170 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -591,8 +591,7 @@ static void radeon_ttm_tt_unpin_userptr(struct ttm_tt *ttm)
 {
         struct radeon_device *rdev = radeon_get_rdev(ttm->bdev);
         struct radeon_ttm_tt *gtt = (void *)ttm;
-        struct scatterlist *sg;
-        int i;
+        struct sg_page_iter sg_iter;
 
         int write = !(gtt->userflags & RADEON_GEM_USERPTR_READONLY);
         enum dma_data_direction direction = write ?
@@ -605,9 +604,8 @@ static void radeon_ttm_tt_unpin_userptr(struct ttm_tt *ttm)
         /* free the sg table and pages again */
         dma_unmap_sg(rdev->dev, ttm->sg->sgl, ttm->sg->nents, direction);
 
-        for_each_sg(ttm->sg->sgl, sg, ttm->sg->nents, i) {
-                struct page *page = sg_page(sg);
-
+        for_each_sg_page(ttm->sg->sgl, &sg_iter, ttm->sg->nents, 0) {
+                struct page *page = sg_page_iter_page(&sg_iter);
                 if (!(gtt->userflags & RADEON_GEM_USERPTR_READONLY))
                         set_page_dirty(page);
 
diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index c10b2aec6450..6edcb5485092 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -204,28 +204,32 @@ void radeon_uvd_fini(struct radeon_device *rdev)
 
 int radeon_uvd_suspend(struct radeon_device *rdev)
 {
-        unsigned size;
-        void *ptr;
-        int i;
+        int i, r;
 
         if (rdev->uvd.vcpu_bo == NULL)
                 return 0;
 
-        for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
-                if (atomic_read(&rdev->uvd.handles[i]))
-                        break;
+        for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
+                uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
+                if (handle != 0) {
+                        struct radeon_fence *fence;
 
-        if (i == RADEON_MAX_UVD_HANDLES)
-                return 0;
+                        radeon_uvd_note_usage(rdev);
 
-        size = radeon_bo_size(rdev->uvd.vcpu_bo);
-        size -= rdev->uvd_fw->size;
+                        r = radeon_uvd_get_destroy_msg(rdev,
+                                R600_RING_TYPE_UVD_INDEX, handle, &fence);
+                        if (r) {
+                                DRM_ERROR("Error destroying UVD (%d)!\n", r);
+                                continue;
+                        }
 
-        ptr = rdev->uvd.cpu_addr;
-        ptr += rdev->uvd_fw->size;
+                        radeon_fence_wait(fence, false);
+                        radeon_fence_unref(&fence);
 
-        rdev->uvd.saved_bo = kmalloc(size, GFP_KERNEL);
-        memcpy(rdev->uvd.saved_bo, ptr, size);
+                        rdev->uvd.filp[i] = NULL;
+                        atomic_set(&rdev->uvd.handles[i], 0);
+                }
+        }
 
         return 0;
 }
@@ -246,12 +250,7 @@ int radeon_uvd_resume(struct radeon_device *rdev)
         ptr = rdev->uvd.cpu_addr;
         ptr += rdev->uvd_fw->size;
 
-        if (rdev->uvd.saved_bo != NULL) {
-                memcpy(ptr, rdev->uvd.saved_bo, size);
-                kfree(rdev->uvd.saved_bo);
-                rdev->uvd.saved_bo = NULL;
-        } else
-                memset(ptr, 0, size);
+        memset(ptr, 0, size);
 
         return 0;
 }
@@ -396,6 +395,29 @@ static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
         return 0;
 }
 
+static int radeon_uvd_validate_codec(struct radeon_cs_parser *p,
+                                     unsigned stream_type)
+{
+        switch (stream_type) {
+        case 0: /* H264 */
+        case 1: /* VC1 */
+                /* always supported */
+                return 0;
+
+        case 3: /* MPEG2 */
+        case 4: /* MPEG4 */
+                /* only since UVD 3 */
+                if (p->rdev->family >= CHIP_PALM)
+                        return 0;
+
+                /* fall through */
+        default:
+                DRM_ERROR("UVD codec not supported by hardware %d!\n",
+                          stream_type);
+                return -EINVAL;
+        }
+}
+
 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
                              unsigned offset, unsigned buf_sizes[])
 {
@@ -436,50 +458,70 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
                 return -EINVAL;
         }
 
-        if (msg_type == 1) {
-                /* it's a decode msg, calc buffer sizes */
-                r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
-                /* calc image size (width * height) */
-                img_size = msg[6] * msg[7];
+        switch (msg_type) {
+        case 0:
+                /* it's a create msg, calc image size (width * height) */
+                img_size = msg[7] * msg[8];
+
+                r = radeon_uvd_validate_codec(p, msg[4]);
                 radeon_bo_kunmap(bo);
                 if (r)
                         return r;
 
-        } else if (msg_type == 2) {
+                /* try to alloc a new handle */
+                for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
+                        if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
+                                DRM_ERROR("Handle 0x%x already in use!\n", handle);
+                                return -EINVAL;
+                        }
+
+                        if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
+                                p->rdev->uvd.filp[i] = p->filp;
+                                p->rdev->uvd.img_size[i] = img_size;
+                                return 0;
+                        }
+                }
+
+                DRM_ERROR("No more free UVD handles!\n");
+                return -EINVAL;
+
+        case 1:
+                /* it's a decode msg, validate codec and calc buffer sizes */
+                r = radeon_uvd_validate_codec(p, msg[4]);
+                if (!r)
+                        r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
+                radeon_bo_kunmap(bo);
+                if (r)
+                        return r;
+
+                /* validate the handle */
+                for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
+                        if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
+                                if (p->rdev->uvd.filp[i] != p->filp) {
+                                        DRM_ERROR("UVD handle collision detected!\n");
+                                        return -EINVAL;
+                                }
+                                return 0;
+                        }
+                }
+
+                DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
+                return -ENOENT;
+
+        case 2:
                 /* it's a destroy msg, free the handle */
                 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
                         atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
                 radeon_bo_kunmap(bo);
                 return 0;
-        } else {
-                /* it's a create msg, calc image size (width * height) */
-                img_size = msg[7] * msg[8];
-                radeon_bo_kunmap(bo);
 
-                if (msg_type != 0) {
-                        DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
-                        return -EINVAL;
-                }
-
-                /* it's a create msg, no special handling needed */
-        }
-
-        /* create or decode, validate the handle */
-        for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
-                if (atomic_read(&p->rdev->uvd.handles[i]) == handle)
-                        return 0;
-        }
+        default:
 
-        /* handle not found try to alloc a new one */
-        for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
-                if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
-                        p->rdev->uvd.filp[i] = p->filp;
-                        p->rdev->uvd.img_size[i] = img_size;
-                        return 0;
-                }
+                DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
+                return -EINVAL;
         }
 
-        DRM_ERROR("No more free UVD handles!\n");
+        BUG();
         return -EINVAL;
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_vce.c b/drivers/gpu/drm/radeon/radeon_vce.c
index 24f849f888bb..0de5711ac508 100644
--- a/drivers/gpu/drm/radeon/radeon_vce.c
+++ b/drivers/gpu/drm/radeon/radeon_vce.c
@@ -493,18 +493,27 @@ int radeon_vce_cs_reloc(struct radeon_cs_parser *p, int lo, int hi,
  *
  * @p: parser context
  * @handle: handle to validate
+ * @allocated: allocated a new handle?
  *
  * Validates the handle and return the found session index or -EINVAL
  * we we don't have another free session index.
  */
-int radeon_vce_validate_handle(struct radeon_cs_parser *p, uint32_t handle)
+static int radeon_vce_validate_handle(struct radeon_cs_parser *p,
+                                      uint32_t handle, bool *allocated)
 {
         unsigned i;
 
+        *allocated = false;
+
         /* validate the handle */
         for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
-                if (atomic_read(&p->rdev->vce.handles[i]) == handle)
+                if (atomic_read(&p->rdev->vce.handles[i]) == handle) {
+                        if (p->rdev->vce.filp[i] != p->filp) {
+                                DRM_ERROR("VCE handle collision detected!\n");
+                                return -EINVAL;
+                        }
                         return i;
+                }
         }
 
         /* handle not found try to alloc a new one */
@@ -512,6 +521,7 @@ int radeon_vce_validate_handle(struct radeon_cs_parser *p, uint32_t handle)
                 if (!atomic_cmpxchg(&p->rdev->vce.handles[i], 0, handle)) {
                         p->rdev->vce.filp[i] = p->filp;
                         p->rdev->vce.img_size[i] = 0;
+                        *allocated = true;
                         return i;
                 }
         }
@@ -529,10 +539,10 @@ int radeon_vce_validate_handle(struct radeon_cs_parser *p, uint32_t handle)
 int radeon_vce_cs_parse(struct radeon_cs_parser *p)
 {
         int session_idx = -1;
-        bool destroyed = false;
+        bool destroyed = false, created = false, allocated = false;
         uint32_t tmp, handle = 0;
         uint32_t *size = &tmp;
-        int i, r;
+        int i, r = 0;
 
         while (p->idx < p->chunk_ib->length_dw) {
                 uint32_t len = radeon_get_ib_value(p, p->idx);
@@ -540,18 +550,21 @@ int radeon_vce_cs_parse(struct radeon_cs_parser *p)
 
                 if ((len < 8) || (len & 3)) {
                         DRM_ERROR("invalid VCE command length (%d)!\n", len);
-                        return -EINVAL;
+                        r = -EINVAL;
+                        goto out;
                 }
 
                 if (destroyed) {
                         DRM_ERROR("No other command allowed after destroy!\n");
-                        return -EINVAL;
+                        r = -EINVAL;
+                        goto out;
                 }
 
                 switch (cmd) {
                 case 0x00000001: // session
                         handle = radeon_get_ib_value(p, p->idx + 2);
-                        session_idx = radeon_vce_validate_handle(p, handle);
+                        session_idx = radeon_vce_validate_handle(p, handle,
+                                                                 &allocated);
                         if (session_idx < 0)
                                 return session_idx;
                         size = &p->rdev->vce.img_size[session_idx];
@@ -561,6 +574,13 @@ int radeon_vce_cs_parse(struct radeon_cs_parser *p)
                         break;
 
                 case 0x01000001: // create
+                        created = true;
+                        if (!allocated) {
+                                DRM_ERROR("Handle already in use!\n");
+                                r = -EINVAL;
+                                goto out;
+                        }
+
                         *size = radeon_get_ib_value(p, p->idx + 8) *
                                 radeon_get_ib_value(p, p->idx + 10) *
                                 8 * 3 / 2;
@@ -578,12 +598,12 @@ int radeon_vce_cs_parse(struct radeon_cs_parser *p)
                         r = radeon_vce_cs_reloc(p, p->idx + 10, p->idx + 9,
                                                 *size);
                         if (r)
-                                return r;
+                                goto out;
 
                         r = radeon_vce_cs_reloc(p, p->idx + 12, p->idx + 11,
                                                 *size / 3);
                         if (r)
-                                return r;
+                                goto out;
                         break;
 
                 case 0x02000001: // destroy
@@ -594,7 +614,7 @@ int radeon_vce_cs_parse(struct radeon_cs_parser *p)
                         r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
                                                 *size * 2);
                         if (r)
-                                return r;
+                                goto out;
                         break;
 
                 case 0x05000004: // video bitstream buffer
@@ -602,36 +622,47 @@ int radeon_vce_cs_parse(struct radeon_cs_parser *p)
                         r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
                                                 tmp);
                         if (r)
-                                return r;
+                                goto out;
                         break;
 
                 case 0x05000005: // feedback buffer
                         r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
                                                 4096);
                         if (r)
-                                return r;
+                                goto out;
                         break;
 
                 default:
                         DRM_ERROR("invalid VCE command (0x%x)!\n", cmd);
-                        return -EINVAL;
+                        r = -EINVAL;
+                        goto out;
                 }
 
                 if (session_idx == -1) {
                         DRM_ERROR("no session command at start of IB\n");
-                        return -EINVAL;
+                        r = -EINVAL;
+                        goto out;
                 }
 
                 p->idx += len / 4;
         }
 
-        if (destroyed) {
-                /* IB contains a destroy msg, free the handle */
+        if (allocated && !created) {
+                DRM_ERROR("New session without create command!\n");
+                r = -ENOENT;
+        }
+
+out:
+        if ((!r && destroyed) || (r && allocated)) {
+                /*
+                 * IB contains a destroy msg or we have allocated an
+                 * handle and got an error, anyway free the handle
+                 */
                 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i)
                         atomic_cmpxchg(&p->rdev->vce.handles[i], handle, 0);
         }
 
-        return 0;
+        return r;
 }
 
 /**
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index 2a5a4a9e772d..de42fc4a22b8 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -473,6 +473,23 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
         }
 
         mutex_lock(&vm->mutex);
+        soffset /= RADEON_GPU_PAGE_SIZE;
+        eoffset /= RADEON_GPU_PAGE_SIZE;
+        if (soffset || eoffset) {
+                struct interval_tree_node *it;
+                it = interval_tree_iter_first(&vm->va, soffset, eoffset - 1);
+                if (it && it != &bo_va->it) {
+                        struct radeon_bo_va *tmp;
+                        tmp = container_of(it, struct radeon_bo_va, it);
+                        /* bo and tmp overlap, invalid offset */
+                        dev_err(rdev->dev, "bo %p va 0x%010Lx conflict with "
+                                "(bo %p 0x%010lx 0x%010lx)\n", bo_va->bo,
+                                soffset, tmp->bo, tmp->it.start, tmp->it.last);
+                        mutex_unlock(&vm->mutex);
+                        return -EINVAL;
+                }
+        }
+
         if (bo_va->it.start || bo_va->it.last) {
                 if (bo_va->addr) {
                         /* add a clone of the bo_va to clear the old address */
@@ -490,6 +507,8 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
                         spin_lock(&vm->status_lock);
                         list_add(&tmp->vm_status, &vm->freed);
                         spin_unlock(&vm->status_lock);
+
+                        bo_va->addr = 0;
                 }
 
                 interval_tree_remove(&bo_va->it, &vm->va);
@@ -497,21 +516,7 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
                 bo_va->it.last = 0;
         }
 
-        soffset /= RADEON_GPU_PAGE_SIZE;
-        eoffset /= RADEON_GPU_PAGE_SIZE;
         if (soffset || eoffset) {
-                struct interval_tree_node *it;
-                it = interval_tree_iter_first(&vm->va, soffset, eoffset - 1);
-                if (it) {
-                        struct radeon_bo_va *tmp;
-                        tmp = container_of(it, struct radeon_bo_va, it);
-                        /* bo and tmp overlap, invalid offset */
-                        dev_err(rdev->dev, "bo %p va 0x%010Lx conflict with "
-                                "(bo %p 0x%010lx 0x%010lx)\n", bo_va->bo,
-                                soffset, tmp->bo, tmp->it.start, tmp->it.last);
-                        mutex_unlock(&vm->mutex);
-                        return -EINVAL;
-                }
                 bo_va->it.start = soffset;
                 bo_va->it.last = eoffset - 1;
                 interval_tree_insert(&bo_va->it, &vm->va);
@@ -1107,7 +1112,8 @@ void radeon_vm_bo_rmv(struct radeon_device *rdev,
         list_del(&bo_va->bo_list);
 
         mutex_lock(&vm->mutex);
-        interval_tree_remove(&bo_va->it, &vm->va);
+        if (bo_va->it.start || bo_va->it.last)
+                interval_tree_remove(&bo_va->it, &vm->va);
         spin_lock(&vm->status_lock);
         list_del(&bo_va->vm_status);
 
diff --git a/drivers/gpu/drm/radeon/rv770d.h b/drivers/gpu/drm/radeon/rv770d.h
index 3cf1e2921545..9ef2064b1c9c 100644
--- a/drivers/gpu/drm/radeon/rv770d.h
+++ b/drivers/gpu/drm/radeon/rv770d.h
@@ -989,6 +989,9 @@
                          ((n) & 0x3FFF) << 16)
 
 /* UVD */
+#define UVD_SEMA_ADDR_LOW                               0xef00
+#define UVD_SEMA_ADDR_HIGH                              0xef04
+#define UVD_SEMA_CMD                                    0xef08
 #define UVD_GPCOM_VCPU_CMD                              0xef0c
 #define UVD_GPCOM_VCPU_DATA0                            0xef10
 #define UVD_GPCOM_VCPU_DATA1                            0xef14
diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index b35bccfeef79..ff8b83f5e929 100644
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -2924,6 +2924,7 @@ struct si_dpm_quirk {
 static struct si_dpm_quirk si_dpm_quirk_list[] = {
         /* PITCAIRN - https://bugs.freedesktop.org/show_bug.cgi?id=76490 */
         { PCI_VENDOR_ID_ATI, 0x6810, 0x1462, 0x3036, 0, 120000 },
+        { PCI_VENDOR_ID_ATI, 0x6811, 0x174b, 0xe271, 0, 120000 },
         { 0, 0, 0, 0 },
 };
 
diff --git a/drivers/gpu/drm/radeon/uvd_v1_0.c b/drivers/gpu/drm/radeon/uvd_v1_0.c
index e72b3cb59358..c6b1cbca47fc 100644
--- a/drivers/gpu/drm/radeon/uvd_v1_0.c
+++ b/drivers/gpu/drm/radeon/uvd_v1_0.c
@@ -466,18 +466,8 @@ bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
                              struct radeon_semaphore *semaphore,
                              bool emit_wait)
 {
-        uint64_t addr = semaphore->gpu_addr;
-
-        radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0));
-        radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF);
-
-        radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0));
-        radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF);
-
-        radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0));
-        radeon_ring_write(ring, emit_wait ? 1 : 0);
-
-        return true;
+        /* disable semaphores for UVD V1 hardware */
+        return false;
 }
 
 /**
diff --git a/drivers/gpu/drm/radeon/uvd_v2_2.c b/drivers/gpu/drm/radeon/uvd_v2_2.c
index 89193519f8a1..7ed778cec7c6 100644
--- a/drivers/gpu/drm/radeon/uvd_v2_2.c
+++ b/drivers/gpu/drm/radeon/uvd_v2_2.c
@@ -60,6 +60,35 @@ void uvd_v2_2_fence_emit(struct radeon_device *rdev,
 }
 
 /**
+ * uvd_v2_2_semaphore_emit - emit semaphore command
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ * @semaphore: semaphore to emit commands for
+ * @emit_wait: true if we should emit a wait command
+ *
+ * Emit a semaphore command (either wait or signal) to the UVD ring.
+ */
+bool uvd_v2_2_semaphore_emit(struct radeon_device *rdev,
+                             struct radeon_ring *ring,
+                             struct radeon_semaphore *semaphore,
+                             bool emit_wait)
+{
+        uint64_t addr = semaphore->gpu_addr;
+
+        radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0));
+        radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF);
+
+        radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0));
+        radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF);
+
+        radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0));
+        radeon_ring_write(ring, emit_wait ? 1 : 0);
+
+        return true;
+}
+
+/**
  * uvd_v2_2_resume - memory controller programming
  *
  * @rdev: radeon_device pointer
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index ccb0ce073ef2..4557f335a8a5 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1409,7 +1409,7 @@ static int vop_bind(struct device *dev, struct device *master, void *data)
         struct vop *vop;
         struct resource *res;
         size_t alloc_size;
-        int ret;
+        int ret, irq;
 
         of_id = of_match_device(vop_driver_dt_match, dev);
         vop_data = of_id->data;
@@ -1445,11 +1445,12 @@ static int vop_bind(struct device *dev, struct device *master, void *data)
                 return ret;
         }
 
-        vop->irq = platform_get_irq(pdev, 0);
-        if (vop->irq < 0) {
+        irq = platform_get_irq(pdev, 0);
+        if (irq < 0) {
                 dev_err(dev, "cannot find irq for vop\n");
-                return vop->irq;
+                return irq;
         }
+        vop->irq = (unsigned int)irq;
 
         spin_lock_init(&vop->reg_lock);
         spin_lock_init(&vop->irq_lock);
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 1833abd7d3aa..bfad15a913a0 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -173,7 +173,6 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
         drm->irq_enabled = true;
 
         /* syncpoints are used for full 32-bit hardware VBLANK counters */
-        drm->vblank_disable_immediate = true;
         drm->max_vblank_count = 0xffffffff;
 
         err = drm_vblank_init(drm, drm->mode_config.num_crtc);
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index a04c49f2a011..39ea67f9b066 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -643,15 +643,6 @@ config BLK_DEV_TC86C001
         help
         This driver adds support for Toshiba TC86C001 GOKU-S chip.
 
-config BLK_DEV_CELLEB
-        tristate "Toshiba's Cell Reference Set IDE support"
-        depends on PPC_CELLEB
-        select BLK_DEV_IDEDMA_PCI
-        help
-          This driver provides support for the on-board IDE controller on
-          Toshiba Cell Reference Board.
-          If unsure, say Y.
-
 endif
 
 # TODO: BLK_DEV_IDEDMA_PCI -> BLK_DEV_IDEDMA_SFF
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index a04ee82f1c8f..2a8c417d4081 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -38,7 +38,6 @@ obj-$(CONFIG_BLK_DEV_AEC62XX)		+= aec62xx.o
 obj-$(CONFIG_BLK_DEV_ALI15X3)           += alim15x3.o
 obj-$(CONFIG_BLK_DEV_AMD74XX)           += amd74xx.o
 obj-$(CONFIG_BLK_DEV_ATIIXP)            += atiixp.o
-obj-$(CONFIG_BLK_DEV_CELLEB)            += scc_pata.o
 obj-$(CONFIG_BLK_DEV_CMD64X)            += cmd64x.o
 obj-$(CONFIG_BLK_DEV_CS5520)            += cs5520.o
 obj-$(CONFIG_BLK_DEV_CS5530)            += cs5530.o
diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
deleted file mode 100644
index 2a2d188b5d5b..000000000000
--- a/drivers/ide/scc_pata.c
+++ /dev/null
@@ -1,887 +0,0 @@
-/*
- * Support for IDE interfaces on Celleb platform
- *
- * (C) Copyright 2006 TOSHIBA CORPORATION
- *
- * This code is based on drivers/ide/pci/siimage.c:
- * Copyright (C) 2001-2002      Andre Hedrick <andre@linux-ide.org>
- * Copyright (C) 2003           Red Hat
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/ide.h>
-#include <linux/init.h>
-
-#define PCI_DEVICE_ID_TOSHIBA_SCC_ATA            0x01b4
-
-#define SCC_PATA_NAME           "scc IDE"
-
-#define TDVHSEL_MASTER          0x00000001
-#define TDVHSEL_SLAVE           0x00000004
-
-#define MODE_JCUSFEN            0x00000080
-
-#define CCKCTRL_ATARESET        0x00040000
-#define CCKCTRL_BUFCNT          0x00020000
-#define CCKCTRL_CRST            0x00010000
-#define CCKCTRL_OCLKEN          0x00000100
-#define CCKCTRL_ATACLKOEN       0x00000002
-#define CCKCTRL_LCLKEN          0x00000001
-
-#define QCHCD_IOS_SS            0x00000001
-
-#define QCHSD_STPDIAG           0x00020000
-
-#define INTMASK_MSK             0xD1000012
-#define INTSTS_SERROR           0x80000000
-#define INTSTS_PRERR            0x40000000
-#define INTSTS_RERR             0x10000000
-#define INTSTS_ICERR            0x01000000
-#define INTSTS_BMSINT           0x00000010
-#define INTSTS_BMHE             0x00000008
-#define INTSTS_IOIRQS           0x00000004
-#define INTSTS_INTRQ            0x00000002
-#define INTSTS_ACTEINT          0x00000001
-
-#define ECMODE_VALUE 0x01
-
-static struct scc_ports {
-        unsigned long ctl, dma;
-        struct ide_host *host;  /* for removing port from system */
-} scc_ports[MAX_HWIFS];
-
-/* PIO transfer mode  table */
-/* JCHST */
-static unsigned long JCHSTtbl[2][7] = {
-        {0x0E, 0x05, 0x02, 0x03, 0x02, 0x00, 0x00},   /* 100MHz */
-        {0x13, 0x07, 0x04, 0x04, 0x03, 0x00, 0x00}    /* 133MHz */
-};
-
-/* JCHHT */
-static unsigned long JCHHTtbl[2][7] = {
-        {0x0E, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00},   /* 100MHz */
-        {0x13, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00}    /* 133MHz */
-};
-
-/* JCHCT */
-static unsigned long JCHCTtbl[2][7] = {
-        {0x1D, 0x1D, 0x1C, 0x0B, 0x06, 0x00, 0x00},   /* 100MHz */
-        {0x27, 0x26, 0x26, 0x0E, 0x09, 0x00, 0x00}    /* 133MHz */
-};
-
-
-/* DMA transfer mode  table */
-/* JCHDCTM/JCHDCTS */
-static unsigned long JCHDCTxtbl[2][7] = {
-        {0x0A, 0x06, 0x04, 0x03, 0x01, 0x00, 0x00},   /* 100MHz */
-        {0x0E, 0x09, 0x06, 0x04, 0x02, 0x01, 0x00}    /* 133MHz */
-};
-
-/* JCSTWTM/JCSTWTS  */
-static unsigned long JCSTWTxtbl[2][7] = {
-        {0x06, 0x04, 0x03, 0x02, 0x02, 0x02, 0x00},   /* 100MHz */
-        {0x09, 0x06, 0x04, 0x02, 0x02, 0x02, 0x02}    /* 133MHz */
-};
-
-/* JCTSS */
-static unsigned long JCTSStbl[2][7] = {
-        {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x00},   /* 100MHz */
-        {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05}    /* 133MHz */
-};
-
-/* JCENVT */
-static unsigned long JCENVTtbl[2][7] = {
-        {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00},   /* 100MHz */
-        {0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02}    /* 133MHz */
-};
-
-/* JCACTSELS/JCACTSELM */
-static unsigned long JCACTSELtbl[2][7] = {
-        {0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00},   /* 100MHz */
-        {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}    /* 133MHz */
-};
-
-
-static u8 scc_ide_inb(unsigned long port)
-{
-        u32 data = in_be32((void*)port);
-        return (u8)data;
-}
-
-static void scc_exec_command(ide_hwif_t *hwif, u8 cmd)
-{
-        out_be32((void *)hwif->io_ports.command_addr, cmd);
-        eieio();
-        in_be32((void *)(hwif->dma_base + 0x01c));
-        eieio();
-}
-
-static u8 scc_read_status(ide_hwif_t *hwif)
-{
-        return (u8)in_be32((void *)hwif->io_ports.status_addr);
-}
-
-static u8 scc_read_altstatus(ide_hwif_t *hwif)
-{
-        return (u8)in_be32((void *)hwif->io_ports.ctl_addr);
-}
-
-static u8 scc_dma_sff_read_status(ide_hwif_t *hwif)
-{
-        return (u8)in_be32((void *)(hwif->dma_base + 4));
-}
-
-static void scc_write_devctl(ide_hwif_t *hwif, u8 ctl)
-{
-        out_be32((void *)hwif->io_ports.ctl_addr, ctl);
-        eieio();
-        in_be32((void *)(hwif->dma_base + 0x01c));
-        eieio();
-}
-
-static void scc_ide_insw(unsigned long port, void *addr, u32 count)
-{
-        u16 *ptr = (u16 *)addr;
-        while (count--) {
-                *ptr++ = le16_to_cpu(in_be32((void*)port));
-        }
-}
-
-static void scc_ide_insl(unsigned long port, void *addr, u32 count)
-{
-        u16 *ptr = (u16 *)addr;
-        while (count--) {
-                *ptr++ = le16_to_cpu(in_be32((void*)port));
-                *ptr++ = le16_to_cpu(in_be32((void*)port));
-        }
-}
-
-static void scc_ide_outb(u8 addr, unsigned long port)
-{
-        out_be32((void*)port, addr);
-}
-
-static void
-scc_ide_outsw(unsigned long port, void *addr, u32 count)
-{
-        u16 *ptr = (u16 *)addr;
-        while (count--) {
-                out_be32((void*)port, cpu_to_le16(*ptr++));
-        }
-}
-
-static void
-scc_ide_outsl(unsigned long port, void *addr, u32 count)
-{
-        u16 *ptr = (u16 *)addr;
-        while (count--) {
-                out_be32((void*)port, cpu_to_le16(*ptr++));
-                out_be32((void*)port, cpu_to_le16(*ptr++));
-        }
-}
-
-/**
- *      scc_set_pio_mode        -       set host controller for PIO mode
- *      @hwif: port
- *      @drive: drive
- *
- *      Load the timing settings for this device mode into the
- *      controller.
- */
-
-static void scc_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-        struct scc_ports *ports = ide_get_hwifdata(hwif);
-        unsigned long ctl_base = ports->ctl;
-        unsigned long cckctrl_port = ctl_base + 0xff0;
-        unsigned long piosht_port = ctl_base + 0x000;
-        unsigned long pioct_port = ctl_base + 0x004;
-        unsigned long reg;
-        int offset;
-        const u8 pio = drive->pio_mode - XFER_PIO_0;
-
-        reg = in_be32((void __iomem *)cckctrl_port);
-        if (reg & CCKCTRL_ATACLKOEN) {
-                offset = 1; /* 133MHz */
-        } else {
-                offset = 0; /* 100MHz */
-        }
-        reg = JCHSTtbl[offset][pio] << 16 | JCHHTtbl[offset][pio];
-        out_be32((void __iomem *)piosht_port, reg);
-        reg = JCHCTtbl[offset][pio];
-        out_be32((void __iomem *)pioct_port, reg);
-}
-
-/**
- *      scc_set_dma_mode        -       set host controller for DMA mode
- *      @hwif: port
- *      @drive: drive
- *
- *      Load the timing settings for this device mode into the
- *      controller.
- */
-
-static void scc_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-        struct scc_ports *ports = ide_get_hwifdata(hwif);
-        unsigned long ctl_base = ports->ctl;
-        unsigned long cckctrl_port = ctl_base + 0xff0;
-        unsigned long mdmact_port = ctl_base + 0x008;
-        unsigned long mcrcst_port = ctl_base + 0x00c;
-        unsigned long sdmact_port = ctl_base + 0x010;
-        unsigned long scrcst_port = ctl_base + 0x014;
-        unsigned long udenvt_port = ctl_base + 0x018;
-        unsigned long tdvhsel_port   = ctl_base + 0x020;
-        int is_slave = drive->dn & 1;
-        int offset, idx;
-        unsigned long reg;
-        unsigned long jcactsel;
-        const u8 speed = drive->dma_mode;
-
-        reg = in_be32((void __iomem *)cckctrl_port);
-        if (reg & CCKCTRL_ATACLKOEN) {
-                offset = 1; /* 133MHz */
-        } else {
-                offset = 0; /* 100MHz */
-        }
-
-        idx = speed - XFER_UDMA_0;
-
-        jcactsel = JCACTSELtbl[offset][idx];
-        if (is_slave) {
-                out_be32((void __iomem *)sdmact_port, JCHDCTxtbl[offset][idx]);
-                out_be32((void __iomem *)scrcst_port, JCSTWTxtbl[offset][idx]);
-                jcactsel = jcactsel << 2;
-                out_be32((void __iomem *)tdvhsel_port, (in_be32((void __iomem *)tdvhsel_port) & ~TDVHSEL_SLAVE) | jcactsel);
-        } else {
-                out_be32((void __iomem *)mdmact_port, JCHDCTxtbl[offset][idx]);
-                out_be32((void __iomem *)mcrcst_port, JCSTWTxtbl[offset][idx]);
-                out_be32((void __iomem *)tdvhsel_port, (in_be32((void __iomem *)tdvhsel_port) & ~TDVHSEL_MASTER) | jcactsel);
-        }
-        reg = JCTSStbl[offset][idx] << 16 | JCENVTtbl[offset][idx];
-        out_be32((void __iomem *)udenvt_port, reg);
-}
-
-static void scc_dma_host_set(ide_drive_t *drive, int on)
-{
-        ide_hwif_t *hwif = drive->hwif;
-        u8 unit = drive->dn & 1;
-        u8 dma_stat = scc_dma_sff_read_status(hwif);
-
-        if (on)
-                dma_stat |= (1 << (5 + unit));
-        else
-                dma_stat &= ~(1 << (5 + unit));
-
-        scc_ide_outb(dma_stat, hwif->dma_base + 4);
-}
-
-/**
- *      scc_dma_setup   -       begin a DMA phase
- *      @drive: target device
- *      @cmd: command
- *
- *      Build an IDE DMA PRD (IDE speak for scatter gather table)
- *      and then set up the DMA transfer registers.
- *
- *      Returns 0 on success. If a PIO fallback is required then 1
- *      is returned.
- */
-
-static int scc_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
-{
-        ide_hwif_t *hwif = drive->hwif;
-        u32 rw = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 0 : ATA_DMA_WR;
-        u8 dma_stat;
-
-        /* fall back to pio! */
-        if (ide_build_dmatable(drive, cmd) == 0)
-                return 1;
-
-        /* PRD table */
-        out_be32((void __iomem *)(hwif->dma_base + 8), hwif->dmatable_dma);
-
-        /* specify r/w */
-        out_be32((void __iomem *)hwif->dma_base, rw);
-
-        /* read DMA status for INTR & ERROR flags */
-        dma_stat = scc_dma_sff_read_status(hwif);
-
-        /* clear INTR & ERROR flags */
-        out_be32((void __iomem *)(hwif->dma_base + 4), dma_stat | 6);
-
-        return 0;
-}
-
-static void scc_dma_start(ide_drive_t *drive)
-{
-        ide_hwif_t *hwif = drive->hwif;
-        u8 dma_cmd = scc_ide_inb(hwif->dma_base);
-
-        /* start DMA */
-        scc_ide_outb(dma_cmd | 1, hwif->dma_base);
-}
-
-static int __scc_dma_end(ide_drive_t *drive)
-{
-        ide_hwif_t *hwif = drive->hwif;
-        u8 dma_stat, dma_cmd;
-
-        /* get DMA command mode */
-        dma_cmd = scc_ide_inb(hwif->dma_base);
-        /* stop DMA */
-        scc_ide_outb(dma_cmd & ~1, hwif->dma_base);
-        /* get DMA status */
-        dma_stat = scc_dma_sff_read_status(hwif);
-        /* clear the INTR & ERROR bits */
-        scc_ide_outb(dma_stat | 6, hwif->dma_base + 4);
-        /* verify good DMA status */
-        return (dma_stat & 7) != 4 ? (0x10 | dma_stat) : 0;
-}
-
-/**
- *      scc_dma_end     -       Stop DMA
- *      @drive: IDE drive
- *
- *      Check and clear INT Status register.
- *      Then call __scc_dma_end().
- */
-
-static int scc_dma_end(ide_drive_t *drive)
-{
-        ide_hwif_t *hwif = drive->hwif;
-        void __iomem *dma_base = (void __iomem *)hwif->dma_base;
-        unsigned long intsts_port = hwif->dma_base + 0x014;
-        u32 reg;
-        int dma_stat, data_loss = 0;
-        static int retry = 0;
-
-        /* errata A308 workaround: Step5 (check data loss) */
-        /* We don't check non ide_disk because it is limited to UDMA4 */
-        if (!(in_be32((void __iomem *)hwif->io_ports.ctl_addr)
-              & ATA_ERR) &&
-            drive->media == ide_disk && drive->current_speed > XFER_UDMA_4) {
-                reg = in_be32((void __iomem *)intsts_port);
-                if (!(reg & INTSTS_ACTEINT)) {
-                        printk(KERN_WARNING "%s: operation failed (transfer data loss)\n",
-                               drive->name);
-                        data_loss = 1;
-                        if (retry++) {
-                                struct request *rq = hwif->rq;
-                                ide_drive_t *drive;
-                                int i;
-
-                                /* ERROR_RESET and drive->crc_count are needed
-                                 * to reduce DMA transfer mode in retry process.
-                                 */
-                                if (rq)
-                                        rq->errors |= ERROR_RESET;
-
-                                ide_port_for_each_dev(i, drive, hwif)
-                                        drive->crc_count++;
-                        }
-                }
-        }
-
-        while (1) {
-                reg = in_be32((void __iomem *)intsts_port);
-
-                if (reg & INTSTS_SERROR) {
-                        printk(KERN_WARNING "%s: SERROR\n", SCC_PATA_NAME);
-                        out_be32((void __iomem *)intsts_port, INTSTS_SERROR|INTSTS_BMSINT);
-
-                        out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS);
-                        continue;
-                }
-
-                if (reg & INTSTS_PRERR) {
-                        u32 maea0, maec0;
-                        unsigned long ctl_base = hwif->config_data;
-
-                        maea0 = in_be32((void __iomem *)(ctl_base + 0xF50));
-                        maec0 = in_be32((void __iomem *)(ctl_base + 0xF54));
-
-                        printk(KERN_WARNING "%s: PRERR [addr:%x cmd:%x]\n", SCC_PATA_NAME, maea0, maec0);
-
-                        out_be32((void __iomem *)intsts_port, INTSTS_PRERR|INTSTS_BMSINT);
-
-                        out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS);
-                        continue;
-                }
-
-                if (reg & INTSTS_RERR) {
-                        printk(KERN_WARNING "%s: Response Error\n", SCC_PATA_NAME);
-                        out_be32((void __iomem *)intsts_port, INTSTS_RERR|INTSTS_BMSINT);
-
-                        out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS);
-                        continue;
-                }
-
-                if (reg & INTSTS_ICERR) {
-                        out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS);
-
-                        printk(KERN_WARNING "%s: Illegal Configuration\n", SCC_PATA_NAME);
-                        out_be32((void __iomem *)intsts_port, INTSTS_ICERR|INTSTS_BMSINT);
-                        continue;
-                }
-
-                if (reg & INTSTS_BMSINT) {
-                        printk(KERN_WARNING "%s: Internal Bus Error\n", SCC_PATA_NAME);
-                        out_be32((void __iomem *)intsts_port, INTSTS_BMSINT);
-
-                        ide_do_reset(drive);
-                        continue;
-                }
-
-                if (reg & INTSTS_BMHE) {
-                        out_be32((void __iomem *)intsts_port, INTSTS_BMHE);
-                        continue;
-                }
-
-                if (reg & INTSTS_ACTEINT) {
-                        out_be32((void __iomem *)intsts_port, INTSTS_ACTEINT);
-                        continue;
-                }
-
-                if (reg & INTSTS_IOIRQS) {
-                        out_be32((void __iomem *)intsts_port, INTSTS_IOIRQS);
-                        continue;
-                }
-                break;
-        }
-
-        dma_stat = __scc_dma_end(drive);
-        if (data_loss)
-                dma_stat |= 2; /* emulate DMA error (to retry command) */
-        return dma_stat;
-}
-
-/* returns 1 if dma irq issued, 0 otherwise */
-static int scc_dma_test_irq(ide_drive_t *drive)
-{
-        ide_hwif_t *hwif = drive->hwif;
-        u32 int_stat = in_be32((void __iomem *)hwif->dma_base + 0x014);
-
-        /* SCC errata A252,A308 workaround: Step4 */
-        if ((in_be32((void __iomem *)hwif->io_ports.ctl_addr)
-             & ATA_ERR) &&
-            (int_stat & INTSTS_INTRQ))
-                return 1;
-
-        /* SCC errata A308 workaround: Step5 (polling IOIRQS) */
-        if (int_stat & INTSTS_IOIRQS)
-                return 1;
-
-        return 0;
-}
-
-static u8 scc_udma_filter(ide_drive_t *drive)
-{
-        ide_hwif_t *hwif = drive->hwif;
-        u8 mask = hwif->ultra_mask;
-
-        /* errata A308 workaround: limit non ide_disk drive to UDMA4 */
-        if ((drive->media != ide_disk) && (mask & 0xE0)) {
-                printk(KERN_INFO "%s: limit %s to UDMA4\n",
-                       SCC_PATA_NAME, drive->name);
-                mask = ATA_UDMA4;
-        }
-
-        return mask;
-}
-
-/**
- *      setup_mmio_scc  -       map CTRL/BMID region
- *      @dev: PCI device we are configuring
- *      @name: device name
- *
- */
-
-static int setup_mmio_scc (struct pci_dev *dev, const char *name)
-{
-        void __iomem *ctl_addr;
-        void __iomem *dma_addr;
-        int i, ret;
-
-        for (i = 0; i < MAX_HWIFS; i++) {
-                if (scc_ports[i].ctl == 0)
-                        break;
-        }
-        if (i >= MAX_HWIFS)
-                return -ENOMEM;
-
-        ret = pci_request_selected_regions(dev, (1 << 2) - 1, name);
-        if (ret < 0) {
-                printk(KERN_ERR "%s: can't reserve resources\n", name);
-                return ret;
-        }
-
-        ctl_addr = pci_ioremap_bar(dev, 0);
-        if (!ctl_addr)
-                goto fail_0;
-
-        dma_addr = pci_ioremap_bar(dev, 1);
-        if (!dma_addr)
-                goto fail_1;
-
-        pci_set_master(dev);
-        scc_ports[i].ctl = (unsigned long)ctl_addr;
-        scc_ports[i].dma = (unsigned long)dma_addr;
-        pci_set_drvdata(dev, (void *) &scc_ports[i]);
-
-        return 1;
-
- fail_1:
-        iounmap(ctl_addr);
- fail_0:
-        return -ENOMEM;
-}
-
-static int scc_ide_setup_pci_device(struct pci_dev *dev,
-                                    const struct ide_port_info *d)
-{
-        struct scc_ports *ports = pci_get_drvdata(dev);
-        struct ide_host *host;
-        struct ide_hw hw, *hws[] = { &hw };
-        int i, rc;
-
-        memset(&hw, 0, sizeof(hw));
-        for (i = 0; i <= 8; i++)
-                hw.io_ports_array[i] = ports->dma + 0x20 + i * 4;
-        hw.irq = dev->irq;
-        hw.dev = &dev->dev;
-
-        rc = ide_host_add(d, hws, 1, &host);
-        if (rc)
-                return rc;
-
-        ports->host = host;
-
-        return 0;
-}
-
-/**
- *      init_setup_scc  -       set up an SCC PATA Controller
- *      @dev: PCI device
- *      @d: IDE port info
- *
- *      Perform the initial set up for this device.
- */
-
-static int init_setup_scc(struct pci_dev *dev, const struct ide_port_info *d)
-{
-        unsigned long ctl_base;
-        unsigned long dma_base;
-        unsigned long cckctrl_port;
-        unsigned long intmask_port;
-        unsigned long mode_port;
-        unsigned long ecmode_port;
-        u32 reg = 0;
-        struct scc_ports *ports;
-        int rc;
-
-        rc = pci_enable_device(dev);
-        if (rc)
-                goto end;
-
-        rc = setup_mmio_scc(dev, d->name);
-        if (rc < 0)
-                goto end;
-
-        ports = pci_get_drvdata(dev);
-        ctl_base = ports->ctl;
-        dma_base = ports->dma;
-        cckctrl_port = ctl_base + 0xff0;
-        intmask_port = dma_base + 0x010;
-        mode_port = ctl_base + 0x024;
-        ecmode_port = ctl_base + 0xf00;
-
-        /* controller initialization */
-        reg = 0;
-        out_be32((void*)cckctrl_port, reg);
-        reg |= CCKCTRL_ATACLKOEN;
-        out_be32((void*)cckctrl_port, reg);
-        reg |= CCKCTRL_LCLKEN | CCKCTRL_OCLKEN;
-        out_be32((void*)cckctrl_port, reg);
-        reg |= CCKCTRL_CRST;
-        out_be32((void*)cckctrl_port, reg);
-
-        for (;;) {
-                reg = in_be32((void*)cckctrl_port);
-                if (reg & CCKCTRL_CRST)
-                        break;
-                udelay(5000);
-        }
-
-        reg |= CCKCTRL_ATARESET;
-        out_be32((void*)cckctrl_port, reg);
-
-        out_be32((void*)ecmode_port, ECMODE_VALUE);
-        out_be32((void*)mode_port, MODE_JCUSFEN);
-        out_be32((void*)intmask_port, INTMASK_MSK);
-
-        rc = scc_ide_setup_pci_device(dev, d);
-
- end:
-        return rc;
-}
-
-static void scc_tf_load(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)
-{
-        struct ide_io_ports *io_ports = &drive->hwif->io_ports;
-
-        if (valid & IDE_VALID_FEATURE)
-                scc_ide_outb(tf->feature, io_ports->feature_addr);
-        if (valid & IDE_VALID_NSECT)
-                scc_ide_outb(tf->nsect, io_ports->nsect_addr);
-        if (valid & IDE_VALID_LBAL)
-                scc_ide_outb(tf->lbal, io_ports->lbal_addr);
-        if (valid & IDE_VALID_LBAM)
-                scc_ide_outb(tf->lbam, io_ports->lbam_addr);
-        if (valid & IDE_VALID_LBAH)
-                scc_ide_outb(tf->lbah, io_ports->lbah_addr);
-        if (valid & IDE_VALID_DEVICE)
-                scc_ide_outb(tf->device, io_ports->device_addr);
-}
-
-static void scc_tf_read(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)
-{
-        struct ide_io_ports *io_ports = &drive->hwif->io_ports;
-
-        if (valid & IDE_VALID_ERROR)
-                tf->error  = scc_ide_inb(io_ports->feature_addr);
-        if (valid & IDE_VALID_NSECT)
-                tf->nsect  = scc_ide_inb(io_ports->nsect_addr);
-        if (valid & IDE_VALID_LBAL)
-                tf->lbal   = scc_ide_inb(io_ports->lbal_addr);
-        if (valid & IDE_VALID_LBAM)
-                tf->lbam   = scc_ide_inb(io_ports->lbam_addr);
-        if (valid & IDE_VALID_LBAH)
-                tf->lbah   = scc_ide_inb(io_ports->lbah_addr);
-        if (valid & IDE_VALID_DEVICE)
-                tf->device = scc_ide_inb(io_ports->device_addr);
-}
-
-static void scc_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
-                           void *buf, unsigned int len)
-{
-        unsigned long data_addr = drive->hwif->io_ports.data_addr;
-
-        len++;
-
-        if (drive->io_32bit) {
-                scc_ide_insl(data_addr, buf, len / 4);
-
-                if ((len & 3) >= 2)
-                        scc_ide_insw(data_addr, (u8 *)buf + (len & ~3), 1);
-        } else
-                scc_ide_insw(data_addr, buf, len / 2);
-}
-
-static void scc_output_data(ide_drive_t *drive,  struct ide_cmd *cmd,
-                            void *buf, unsigned int len)
-{
-        unsigned long data_addr = drive->hwif->io_ports.data_addr;
-
-        len++;
-
-        if (drive->io_32bit) {
-                scc_ide_outsl(data_addr, buf, len / 4);
-
-                if ((len & 3) >= 2)
-                        scc_ide_outsw(data_addr, (u8 *)buf + (len & ~3), 1);
-        } else
-                scc_ide_outsw(data_addr, buf, len / 2);
-}
-
-/**
- *      init_mmio_iops_scc      -       set up the iops for MMIO
- *      @hwif: interface to set up
- *
- */
-
-static void init_mmio_iops_scc(ide_hwif_t *hwif)
-{
-        struct pci_dev *dev = to_pci_dev(hwif->dev);
-        struct scc_ports *ports = pci_get_drvdata(dev);
-        unsigned long dma_base = ports->dma;
-
-        ide_set_hwifdata(hwif, ports);
-
-        hwif->dma_base = dma_base;
-        hwif->config_data = ports->ctl;
-}
-
-/**
- *      init_iops_scc   -       set up iops
- *      @hwif: interface to set up
- *
- *      Do the basic setup for the SCC hardware interface
- *      and then do the MMIO setup.
- */
-
-static void init_iops_scc(ide_hwif_t *hwif)
-{
-        struct pci_dev *dev = to_pci_dev(hwif->dev);
-
-        hwif->hwif_data = NULL;
-        if (pci_get_drvdata(dev) == NULL)
-                return;
-        init_mmio_iops_scc(hwif);
-}
-
-static int scc_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
-{
-        return ide_allocate_dma_engine(hwif);
-}
-
-static u8 scc_cable_detect(ide_hwif_t *hwif)
-{
-        return ATA_CBL_PATA80;
-}
-
-/**
- *      init_hwif_scc   -       set up hwif
- *      @hwif: interface to set up
- *
- *      We do the basic set up of the interface structure. The SCC
- *      requires several custom handlers so we override the default
- *      ide DMA handlers appropriately.
- */
-
-static void init_hwif_scc(ide_hwif_t *hwif)
-{
-        /* PTERADD */
-        out_be32((void __iomem *)(hwif->dma_base + 0x018), hwif->dmatable_dma);
-
-        if (in_be32((void __iomem *)(hwif->config_data + 0xff0)) & CCKCTRL_ATACLKOEN)
-                hwif->ultra_mask = ATA_UDMA6; /* 133MHz */
-        else
-                hwif->ultra_mask = ATA_UDMA5; /* 100MHz */
-}
-
-static const struct ide_tp_ops scc_tp_ops = {
-        .exec_command           = scc_exec_command,
-        .read_status            = scc_read_status,
-        .read_altstatus         = scc_read_altstatus,
-        .write_devctl           = scc_write_devctl,
-
-        .dev_select             = ide_dev_select,
-        .tf_load                = scc_tf_load,
-        .tf_read                = scc_tf_read,
-
-        .input_data             = scc_input_data,
-        .output_data            = scc_output_data,
-};
-
-static const struct ide_port_ops scc_port_ops = {
-        .set_pio_mode           = scc_set_pio_mode,
-        .set_dma_mode           = scc_set_dma_mode,
-        .udma_filter            = scc_udma_filter,
-        .cable_detect           = scc_cable_detect,
-};
-
-static const struct ide_dma_ops scc_dma_ops = {
-        .dma_host_set           = scc_dma_host_set,
-        .dma_setup              = scc_dma_setup,
-        .dma_start              = scc_dma_start,
-        .dma_end                = scc_dma_end,
-        .dma_test_irq           = scc_dma_test_irq,
-        .dma_lost_irq           = ide_dma_lost_irq,
-        .dma_timer_expiry       = ide_dma_sff_timer_expiry,
-        .dma_sff_read_status    = scc_dma_sff_read_status,
-};
-
-static const struct ide_port_info scc_chipset = {
-        .name           = "sccIDE",
-        .init_iops      = init_iops_scc,
-        .init_dma       = scc_init_dma,
-        .init_hwif      = init_hwif_scc,
-        .tp_ops         = &scc_tp_ops,
-        .port_ops       = &scc_port_ops,
-        .dma_ops        = &scc_dma_ops,
-        .host_flags     = IDE_HFLAG_SINGLE,
-        .irq_flags      = IRQF_SHARED,
-        .pio_mask       = ATA_PIO4,
-        .chipset        = ide_pci,
-};
-
-/**
- *      scc_init_one    -       pci layer discovery entry
- *      @dev: PCI device
- *      @id: ident table entry
- *
- *      Called by the PCI code when it finds an SCC PATA controller.
- *      We then use the IDE PCI generic helper to do most of the work.
- */
-
-static int scc_init_one(struct pci_dev *dev, const struct pci_device_id *id)
-{
-        return init_setup_scc(dev, &scc_chipset);
-}
-
-/**
- *      scc_remove      -       pci layer remove entry
- *      @dev: PCI device
- *
- *      Called by the PCI code when it removes an SCC PATA controller.
- */
-
-static void scc_remove(struct pci_dev *dev)
-{
-        struct scc_ports *ports = pci_get_drvdata(dev);
-        struct ide_host *host = ports->host;
-
-        ide_host_remove(host);
-
-        iounmap((void*)ports->dma);
-        iounmap((void*)ports->ctl);
-        pci_release_selected_regions(dev, (1 << 2) - 1);
-        memset(ports, 0, sizeof(*ports));
-}
-
-static const struct pci_device_id scc_pci_tbl[] = {
-        { PCI_VDEVICE(TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_SCC_ATA), 0 },
-        { 0, },
-};
-MODULE_DEVICE_TABLE(pci, scc_pci_tbl);
-
-static struct pci_driver scc_pci_driver = {
-        .name = "SCC IDE",
-        .id_table = scc_pci_tbl,
-        .probe = scc_init_one,
-        .remove = scc_remove,
-};
-
-static int __init scc_ide_init(void)
-{
-        return ide_pci_register_driver(&scc_pci_driver);
-}
-
-static void __exit scc_ide_exit(void)
-{
-        pci_unregister_driver(&scc_pci_driver);
-}
-
-module_init(scc_ide_init);
-module_exit(scc_ide_exit);
-
-MODULE_DESCRIPTION("PCI driver module for Toshiba SCC IDE");
-MODULE_LICENSE("GPL");
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index f80da50d84a5..38339d220d7f 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -472,13 +472,8 @@ int rdma_addr_find_dmac_by_grh(union ib_gid *sgid, union ib_gid *dgid, u8 *dmac,
         } sgid_addr, dgid_addr;
 
 
-        ret = rdma_gid2ip(&sgid_addr._sockaddr, sgid);
-        if (ret)
-                return ret;
-
-        ret = rdma_gid2ip(&dgid_addr._sockaddr, dgid);
-        if (ret)
-                return ret;
+        rdma_gid2ip(&sgid_addr._sockaddr, sgid);
+        rdma_gid2ip(&dgid_addr._sockaddr, dgid);
 
         memset(&dev_addr, 0, sizeof(dev_addr));
 
@@ -512,10 +507,8 @@ int rdma_addr_find_smac_by_sgid(union ib_gid *sgid, u8 *smac, u16 *vlan_id)
                 struct sockaddr_in6 _sockaddr_in6;
         } gid_addr;
 
-        ret = rdma_gid2ip(&gid_addr._sockaddr, sgid);
+        rdma_gid2ip(&gid_addr._sockaddr, sgid);
 
-        if (ret)
-                return ret;
         memset(&dev_addr, 0, sizeof(dev_addr));
         ret = rdma_translate_ip(&gid_addr._sockaddr, &dev_addr, vlan_id);
         if (ret)
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index e28a494e2a3a..0c1419105ff0 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -437,39 +437,38 @@ static struct cm_id_private * cm_acquire_id(__be32 local_id, __be32 remote_id)
         return cm_id_priv;
 }
 
-static void cm_mask_copy(u8 *dst, u8 *src, u8 *mask)
+static void cm_mask_copy(u32 *dst, const u32 *src, const u32 *mask)
 {
         int i;
 
-        for (i = 0; i < IB_CM_COMPARE_SIZE / sizeof(unsigned long); i++)
-                ((unsigned long *) dst)[i] = ((unsigned long *) src)[i] &
-                                             ((unsigned long *) mask)[i];
+        for (i = 0; i < IB_CM_COMPARE_SIZE; i++)
+                dst[i] = src[i] & mask[i];
 }
 
 static int cm_compare_data(struct ib_cm_compare_data *src_data,
                            struct ib_cm_compare_data *dst_data)
 {
-        u8 src[IB_CM_COMPARE_SIZE];
-        u8 dst[IB_CM_COMPARE_SIZE];
+        u32 src[IB_CM_COMPARE_SIZE];
+        u32 dst[IB_CM_COMPARE_SIZE];
 
         if (!src_data || !dst_data)
                 return 0;
 
         cm_mask_copy(src, src_data->data, dst_data->mask);
         cm_mask_copy(dst, dst_data->data, src_data->mask);
-        return memcmp(src, dst, IB_CM_COMPARE_SIZE);
+        return memcmp(src, dst, sizeof(src));
 }
 
-static int cm_compare_private_data(u8 *private_data,
+static int cm_compare_private_data(u32 *private_data,
                                    struct ib_cm_compare_data *dst_data)
 {
-        u8 src[IB_CM_COMPARE_SIZE];
+        u32 src[IB_CM_COMPARE_SIZE];
 
         if (!dst_data)
                 return 0;
 
         cm_mask_copy(src, private_data, dst_data->mask);
-        return memcmp(src, dst_data->data, IB_CM_COMPARE_SIZE);
+        return memcmp(src, dst_data->data, sizeof(src));
 }
 
 /*
@@ -538,7 +537,7 @@ static struct cm_id_private * cm_insert_listen(struct cm_id_private *cm_id_priv)
 
 static struct cm_id_private * cm_find_listen(struct ib_device *device,
                                              __be64 service_id,
-                                             u8 *private_data)
+                                             u32 *private_data)
 {
         struct rb_node *node = cm.listen_service_table.rb_node;
         struct cm_id_private *cm_id_priv;
@@ -953,7 +952,7 @@ int ib_cm_listen(struct ib_cm_id *cm_id, __be64 service_id, __be64 service_mask,
                 cm_mask_copy(cm_id_priv->compare_data->data,
                              compare_data->data, compare_data->mask);
                 memcpy(cm_id_priv->compare_data->mask, compare_data->mask,
-                       IB_CM_COMPARE_SIZE);
+                       sizeof(compare_data->mask));
         }
 
         cm_id->state = IB_CM_LISTEN;
diff --git a/drivers/infiniband/core/cm_msgs.h b/drivers/infiniband/core/cm_msgs.h
index be068f47e47e..8b76f0ef965e 100644
--- a/drivers/infiniband/core/cm_msgs.h
+++ b/drivers/infiniband/core/cm_msgs.h
@@ -103,7 +103,7 @@ struct cm_req_msg {
         /* local ACK timeout:5, rsvd:3 */
         u8 alt_offset139;
 
-        u8 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE];
+        u32 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE / sizeof(u32)];
 
 } __attribute__ ((packed));
 
@@ -801,7 +801,7 @@ struct cm_sidr_req_msg {
         __be16 rsvd;
         __be64 service_id;
 
-        u8 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE];
+        u32 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE / sizeof(u32)];
 } __attribute__ ((packed));
 
 struct cm_sidr_rep_msg {
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index d570030d899c..06441a43c3aa 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -859,19 +859,27 @@ static void cma_save_ib_info(struct rdma_cm_id *id, struct rdma_cm_id *listen_id
         memcpy(&ib->sib_addr, &path->dgid, 16);
 }
 
+static __be16 ss_get_port(const struct sockaddr_storage *ss)
+{
+        if (ss->ss_family == AF_INET)
+                return ((struct sockaddr_in *)ss)->sin_port;
+        else if (ss->ss_family == AF_INET6)
+                return ((struct sockaddr_in6 *)ss)->sin6_port;
+        BUG();
+}
+
 static void cma_save_ip4_info(struct rdma_cm_id *id, struct rdma_cm_id *listen_id,
                               struct cma_hdr *hdr)
 {
-        struct sockaddr_in *listen4, *ip4;
+        struct sockaddr_in *ip4;
 
-        listen4 = (struct sockaddr_in *) &listen_id->route.addr.src_addr;
         ip4 = (struct sockaddr_in *) &id->route.addr.src_addr;
-        ip4->sin_family = listen4->sin_family;
+        ip4->sin_family = AF_INET;
         ip4->sin_addr.s_addr = hdr->dst_addr.ip4.addr;
-        ip4->sin_port = listen4->sin_port;
+        ip4->sin_port = ss_get_port(&listen_id->route.addr.src_addr);
 
         ip4 = (struct sockaddr_in *) &id->route.addr.dst_addr;
-        ip4->sin_family = listen4->sin_family;
+        ip4->sin_family = AF_INET;
         ip4->sin_addr.s_addr = hdr->src_addr.ip4.addr;
         ip4->sin_port = hdr->port;
 }
@@ -879,16 +887,15 @@ static void cma_save_ip4_info(struct rdma_cm_id *id, struct rdma_cm_id *listen_i
 static void cma_save_ip6_info(struct rdma_cm_id *id, struct rdma_cm_id *listen_id,
                               struct cma_hdr *hdr)
 {
-        struct sockaddr_in6 *listen6, *ip6;
+        struct sockaddr_in6 *ip6;
 
-        listen6 = (struct sockaddr_in6 *) &listen_id->route.addr.src_addr;
         ip6 = (struct sockaddr_in6 *) &id->route.addr.src_addr;
-        ip6->sin6_family = listen6->sin6_family;
+        ip6->sin6_family = AF_INET6;
         ip6->sin6_addr = hdr->dst_addr.ip6;
-        ip6->sin6_port = listen6->sin6_port;
+        ip6->sin6_port = ss_get_port(&listen_id->route.addr.src_addr);
 
         ip6 = (struct sockaddr_in6 *) &id->route.addr.dst_addr;
-        ip6->sin6_family = listen6->sin6_family;
+        ip6->sin6_family = AF_INET6;
         ip6->sin6_addr = hdr->src_addr.ip6;
         ip6->sin6_port = hdr->port;
 }
diff --git a/drivers/infiniband/core/iwpm_msg.c b/drivers/infiniband/core/iwpm_msg.c
index b85ddbc979e0..ab081702566f 100644
--- a/drivers/infiniband/core/iwpm_msg.c
+++ b/drivers/infiniband/core/iwpm_msg.c
@@ -468,7 +468,8 @@ add_mapping_response_exit:
 }
 EXPORT_SYMBOL(iwpm_add_mapping_cb);
 
-/* netlink attribute policy for the response to add and query mapping request */
+/* netlink attribute policy for the response to add and query mapping request
+ * and response with remote address info */
 static const struct nla_policy resp_query_policy[IWPM_NLA_RQUERY_MAPPING_MAX] = {
         [IWPM_NLA_QUERY_MAPPING_SEQ]      = { .type = NLA_U32 },
         [IWPM_NLA_QUERY_LOCAL_ADDR]       = { .len = sizeof(struct sockaddr_storage) },
@@ -559,6 +560,76 @@ query_mapping_response_exit:
 }
 EXPORT_SYMBOL(iwpm_add_and_query_mapping_cb);
 
+/*
+ * iwpm_remote_info_cb - Process a port mapper message, containing
+ *                        the remote connecting peer address info
+ */
+int iwpm_remote_info_cb(struct sk_buff *skb, struct netlink_callback *cb)
+{
+        struct nlattr *nltb[IWPM_NLA_RQUERY_MAPPING_MAX];
+        struct sockaddr_storage *local_sockaddr, *remote_sockaddr;
+        struct sockaddr_storage *mapped_loc_sockaddr, *mapped_rem_sockaddr;
+        struct iwpm_remote_info *rem_info;
+        const char *msg_type;
+        u8 nl_client;
+        int ret = -EINVAL;
+
+        msg_type = "Remote Mapping info";
+        if (iwpm_parse_nlmsg(cb, IWPM_NLA_RQUERY_MAPPING_MAX,
+                                resp_query_policy, nltb, msg_type))
+                return ret;
+
+        nl_client = RDMA_NL_GET_CLIENT(cb->nlh->nlmsg_type);
+        if (!iwpm_valid_client(nl_client)) {
+                pr_info("%s: Invalid port mapper client = %d\n",
+                                __func__, nl_client);
+                return ret;
+        }
+        atomic_set(&echo_nlmsg_seq, cb->nlh->nlmsg_seq);
+
+        local_sockaddr = (struct sockaddr_storage *)
+                        nla_data(nltb[IWPM_NLA_QUERY_LOCAL_ADDR]);
+        remote_sockaddr = (struct sockaddr_storage *)
+                        nla_data(nltb[IWPM_NLA_QUERY_REMOTE_ADDR]);
+        mapped_loc_sockaddr = (struct sockaddr_storage *)
+                        nla_data(nltb[IWPM_NLA_RQUERY_MAPPED_LOC_ADDR]);
+        mapped_rem_sockaddr = (struct sockaddr_storage *)
+                        nla_data(nltb[IWPM_NLA_RQUERY_MAPPED_REM_ADDR]);
+
+        if (mapped_loc_sockaddr->ss_family != local_sockaddr->ss_family ||
+                mapped_rem_sockaddr->ss_family != remote_sockaddr->ss_family) {
+                pr_info("%s: Sockaddr family doesn't match the requested one\n",
+                                __func__);
+                return ret;
+        }
+        rem_info = kzalloc(sizeof(struct iwpm_remote_info), GFP_ATOMIC);
+        if (!rem_info) {
+                pr_err("%s: Unable to allocate a remote info\n", __func__);
+                ret = -ENOMEM;
+                return ret;
+        }
+        memcpy(&rem_info->mapped_loc_sockaddr, mapped_loc_sockaddr,
+               sizeof(struct sockaddr_storage));
+        memcpy(&rem_info->remote_sockaddr, remote_sockaddr,
+               sizeof(struct sockaddr_storage));
+        memcpy(&rem_info->mapped_rem_sockaddr, mapped_rem_sockaddr,
+               sizeof(struct sockaddr_storage));
+        rem_info->nl_client = nl_client;
+
+        iwpm_add_remote_info(rem_info);
+
+        iwpm_print_sockaddr(local_sockaddr,
+                        "remote_info: Local sockaddr:");
+        iwpm_print_sockaddr(mapped_loc_sockaddr,
+                        "remote_info: Mapped local sockaddr:");
+        iwpm_print_sockaddr(remote_sockaddr,
+                        "remote_info: Remote sockaddr:");
+        iwpm_print_sockaddr(mapped_rem_sockaddr,
+                        "remote_info: Mapped remote sockaddr:");
+        return ret;
+}
+EXPORT_SYMBOL(iwpm_remote_info_cb);
+
 /* netlink attribute policy for the received request for mapping info */
 static const struct nla_policy resp_mapinfo_policy[IWPM_NLA_MAPINFO_REQ_MAX] = {
         [IWPM_NLA_MAPINFO_ULIB_NAME] = { .type = NLA_STRING,
diff --git a/drivers/infiniband/core/iwpm_util.c b/drivers/infiniband/core/iwpm_util.c
index 69e9f84c1605..a626795bf9c7 100644
--- a/drivers/infiniband/core/iwpm_util.c
+++ b/drivers/infiniband/core/iwpm_util.c
@@ -33,8 +33,10 @@
 
 #include "iwpm_util.h"
 
-#define IWPM_HASH_BUCKET_SIZE   512
-#define IWPM_HASH_BUCKET_MASK   (IWPM_HASH_BUCKET_SIZE - 1)
+#define IWPM_MAPINFO_HASH_SIZE  512
+#define IWPM_MAPINFO_HASH_MASK  (IWPM_MAPINFO_HASH_SIZE - 1)
+#define IWPM_REMINFO_HASH_SIZE  64
+#define IWPM_REMINFO_HASH_MASK  (IWPM_REMINFO_HASH_SIZE - 1)
 
 static LIST_HEAD(iwpm_nlmsg_req_list);
 static DEFINE_SPINLOCK(iwpm_nlmsg_req_lock);
@@ -42,31 +44,49 @@ static DEFINE_SPINLOCK(iwpm_nlmsg_req_lock);
 static struct hlist_head *iwpm_hash_bucket;
 static DEFINE_SPINLOCK(iwpm_mapinfo_lock);
 
+static struct hlist_head *iwpm_reminfo_bucket;
+static DEFINE_SPINLOCK(iwpm_reminfo_lock);
+
 static DEFINE_MUTEX(iwpm_admin_lock);
 static struct iwpm_admin_data iwpm_admin;
 
 int iwpm_init(u8 nl_client)
 {
+        int ret = 0;
         if (iwpm_valid_client(nl_client))
                 return -EINVAL;
         mutex_lock(&iwpm_admin_lock);
         if (atomic_read(&iwpm_admin.refcount) == 0) {
-                iwpm_hash_bucket = kzalloc(IWPM_HASH_BUCKET_SIZE *
+                iwpm_hash_bucket = kzalloc(IWPM_MAPINFO_HASH_SIZE *
                                         sizeof(struct hlist_head), GFP_KERNEL);
                 if (!iwpm_hash_bucket) {
-                        mutex_unlock(&iwpm_admin_lock);
+                        ret = -ENOMEM;
                         pr_err("%s Unable to create mapinfo hash table\n", __func__);
-                        return -ENOMEM;
+                        goto init_exit;
+                }
+                iwpm_reminfo_bucket = kzalloc(IWPM_REMINFO_HASH_SIZE *
+                                        sizeof(struct hlist_head), GFP_KERNEL);
+                if (!iwpm_reminfo_bucket) {
+                        kfree(iwpm_hash_bucket);
+                        ret = -ENOMEM;
+                        pr_err("%s Unable to create reminfo hash table\n", __func__);
+                        goto init_exit;
                 }
         }
         atomic_inc(&iwpm_admin.refcount);
+init_exit:
         mutex_unlock(&iwpm_admin_lock);
-        iwpm_set_valid(nl_client, 1);
-        return 0;
+        if (!ret) {
+                iwpm_set_valid(nl_client, 1);
+                pr_debug("%s: Mapinfo and reminfo tables are created\n",
+                                __func__);
+        }
+        return ret;
 }
 EXPORT_SYMBOL(iwpm_init);
 
 static void free_hash_bucket(void);
+static void free_reminfo_bucket(void);
 
 int iwpm_exit(u8 nl_client)
 {
@@ -81,7 +101,8 @@ int iwpm_exit(u8 nl_client)
         }
         if (atomic_dec_and_test(&iwpm_admin.refcount)) {
                 free_hash_bucket();
-                pr_debug("%s: Mapinfo hash table is destroyed\n", __func__);
+                free_reminfo_bucket();
+                pr_debug("%s: Resources are destroyed\n", __func__);
         }
         mutex_unlock(&iwpm_admin_lock);
         iwpm_set_valid(nl_client, 0);
@@ -89,7 +110,7 @@ int iwpm_exit(u8 nl_client)
 }
 EXPORT_SYMBOL(iwpm_exit);
 
-static struct hlist_head *get_hash_bucket_head(struct sockaddr_storage *,
+static struct hlist_head *get_mapinfo_hash_bucket(struct sockaddr_storage *,
                                                struct sockaddr_storage *);
 
 int iwpm_create_mapinfo(struct sockaddr_storage *local_sockaddr,
@@ -99,9 +120,10 @@ int iwpm_create_mapinfo(struct sockaddr_storage *local_sockaddr,
         struct hlist_head *hash_bucket_head;
         struct iwpm_mapping_info *map_info;
         unsigned long flags;
+        int ret = -EINVAL;
 
         if (!iwpm_valid_client(nl_client))
-                return -EINVAL;
+                return ret;
         map_info = kzalloc(sizeof(struct iwpm_mapping_info), GFP_KERNEL);
         if (!map_info) {
                 pr_err("%s: Unable to allocate a mapping info\n", __func__);
@@ -115,13 +137,16 @@ int iwpm_create_mapinfo(struct sockaddr_storage *local_sockaddr,
 
         spin_lock_irqsave(&iwpm_mapinfo_lock, flags);
         if (iwpm_hash_bucket) {
-                hash_bucket_head = get_hash_bucket_head(
+                hash_bucket_head = get_mapinfo_hash_bucket(
                                         &map_info->local_sockaddr,
                                         &map_info->mapped_sockaddr);
-                hlist_add_head(&map_info->hlist_node, hash_bucket_head);
+                if (hash_bucket_head) {
+                        hlist_add_head(&map_info->hlist_node, hash_bucket_head);
+                        ret = 0;
+                }
         }
         spin_unlock_irqrestore(&iwpm_mapinfo_lock, flags);
-        return 0;
+        return ret;
 }
 EXPORT_SYMBOL(iwpm_create_mapinfo);
 
@@ -136,9 +161,12 @@ int iwpm_remove_mapinfo(struct sockaddr_storage *local_sockaddr,
 
         spin_lock_irqsave(&iwpm_mapinfo_lock, flags);
         if (iwpm_hash_bucket) {
-                hash_bucket_head = get_hash_bucket_head(
+                hash_bucket_head = get_mapinfo_hash_bucket(
                                         local_sockaddr,
                                         mapped_local_addr);
+                if (!hash_bucket_head)
+                        goto remove_mapinfo_exit;
+
                 hlist_for_each_entry_safe(map_info, tmp_hlist_node,
                                         hash_bucket_head, hlist_node) {
 
@@ -152,6 +180,7 @@ int iwpm_remove_mapinfo(struct sockaddr_storage *local_sockaddr,
                         }
                 }
         }
+remove_mapinfo_exit:
         spin_unlock_irqrestore(&iwpm_mapinfo_lock, flags);
         return ret;
 }
@@ -166,7 +195,7 @@ static void free_hash_bucket(void)
 
         /* remove all the mapinfo data from the list */
         spin_lock_irqsave(&iwpm_mapinfo_lock, flags);
-        for (i = 0; i < IWPM_HASH_BUCKET_SIZE; i++) {
+        for (i = 0; i < IWPM_MAPINFO_HASH_SIZE; i++) {
                 hlist_for_each_entry_safe(map_info, tmp_hlist_node,
                         &iwpm_hash_bucket[i], hlist_node) {
 
@@ -180,6 +209,96 @@ static void free_hash_bucket(void)
         spin_unlock_irqrestore(&iwpm_mapinfo_lock, flags);
 }
 
+static void free_reminfo_bucket(void)
+{
+        struct hlist_node *tmp_hlist_node;
+        struct iwpm_remote_info *rem_info;
+        unsigned long flags;
+        int i;
+
+        /* remove all the remote info from the list */
+        spin_lock_irqsave(&iwpm_reminfo_lock, flags);
+        for (i = 0; i < IWPM_REMINFO_HASH_SIZE; i++) {
+                hlist_for_each_entry_safe(rem_info, tmp_hlist_node,
+                        &iwpm_reminfo_bucket[i], hlist_node) {
+
+                                hlist_del_init(&rem_info->hlist_node);
+                                kfree(rem_info);
+                        }
+        }
+        /* free the hash list */
+        kfree(iwpm_reminfo_bucket);
+        iwpm_reminfo_bucket = NULL;
+        spin_unlock_irqrestore(&iwpm_reminfo_lock, flags);
+}
+
+static struct hlist_head *get_reminfo_hash_bucket(struct sockaddr_storage *,
+                                                struct sockaddr_storage *);
+
+void iwpm_add_remote_info(struct iwpm_remote_info *rem_info)
+{
+        struct hlist_head *hash_bucket_head;
+        unsigned long flags;
+
+        spin_lock_irqsave(&iwpm_reminfo_lock, flags);
+        if (iwpm_reminfo_bucket) {
+                hash_bucket_head = get_reminfo_hash_bucket(
+                                        &rem_info->mapped_loc_sockaddr,
+                                        &rem_info->mapped_rem_sockaddr);
+                if (hash_bucket_head)
+                        hlist_add_head(&rem_info->hlist_node, hash_bucket_head);
+        }
+        spin_unlock_irqrestore(&iwpm_reminfo_lock, flags);
+}
+
+int iwpm_get_remote_info(struct sockaddr_storage *mapped_loc_addr,
+                                struct sockaddr_storage *mapped_rem_addr,
+                                struct sockaddr_storage *remote_addr,
+                                u8 nl_client)
+{
+        struct hlist_node *tmp_hlist_node;
+        struct hlist_head *hash_bucket_head;
+        struct iwpm_remote_info *rem_info = NULL;
+        unsigned long flags;
+        int ret = -EINVAL;
+
+        if (!iwpm_valid_client(nl_client)) {
+                pr_info("%s: Invalid client = %d\n", __func__, nl_client);
+                return ret;
+        }
+        spin_lock_irqsave(&iwpm_reminfo_lock, flags);
+        if (iwpm_reminfo_bucket) {
+                hash_bucket_head = get_reminfo_hash_bucket(
+                                        mapped_loc_addr,
+                                        mapped_rem_addr);
+                if (!hash_bucket_head)
+                        goto get_remote_info_exit;
+                hlist_for_each_entry_safe(rem_info, tmp_hlist_node,
+                                        hash_bucket_head, hlist_node) {
+
+                        if (!iwpm_compare_sockaddr(&rem_info->mapped_loc_sockaddr,
+                                mapped_loc_addr) &&
+                                !iwpm_compare_sockaddr(&rem_info->mapped_rem_sockaddr,
+                                mapped_rem_addr)) {
+
+                                memcpy(remote_addr, &rem_info->remote_sockaddr,
+                                        sizeof(struct sockaddr_storage));
+                                iwpm_print_sockaddr(remote_addr,
+                                                "get_remote_info: Remote sockaddr:");
+
+                                hlist_del_init(&rem_info->hlist_node);
+                                kfree(rem_info);
+                                ret = 0;
+                                break;
+                        }
+                }
+        }
+get_remote_info_exit:
+        spin_unlock_irqrestore(&iwpm_reminfo_lock, flags);
+        return ret;
+}
+EXPORT_SYMBOL(iwpm_get_remote_info);
+
 struct iwpm_nlmsg_request *iwpm_get_nlmsg_request(__u32 nlmsg_seq,
                                         u8 nl_client, gfp_t gfp)
 {
@@ -409,31 +528,54 @@ static u32 iwpm_ipv4_jhash(struct sockaddr_in *ipv4_sockaddr)
         return hash;
 }
 
-static struct hlist_head *get_hash_bucket_head(struct sockaddr_storage
-                                               *local_sockaddr,
-                                               struct sockaddr_storage
-                                               *mapped_sockaddr)
+static int get_hash_bucket(struct sockaddr_storage *a_sockaddr,
+                                struct sockaddr_storage *b_sockaddr, u32 *hash)
 {
-        u32 local_hash, mapped_hash, hash;
+        u32 a_hash, b_hash;
 
-        if (local_sockaddr->ss_family == AF_INET) {
-                local_hash = iwpm_ipv4_jhash((struct sockaddr_in *) local_sockaddr);
-                mapped_hash = iwpm_ipv4_jhash((struct sockaddr_in *) mapped_sockaddr);
+        if (a_sockaddr->ss_family == AF_INET) {
+                a_hash = iwpm_ipv4_jhash((struct sockaddr_in *) a_sockaddr);
+                b_hash = iwpm_ipv4_jhash((struct sockaddr_in *) b_sockaddr);
 
-        } else if (local_sockaddr->ss_family == AF_INET6) {
-                local_hash = iwpm_ipv6_jhash((struct sockaddr_in6 *) local_sockaddr);
-                mapped_hash = iwpm_ipv6_jhash((struct sockaddr_in6 *) mapped_sockaddr);
+        } else if (a_sockaddr->ss_family == AF_INET6) {
+                a_hash = iwpm_ipv6_jhash((struct sockaddr_in6 *) a_sockaddr);
+                b_hash = iwpm_ipv6_jhash((struct sockaddr_in6 *) b_sockaddr);
         } else {
                 pr_err("%s: Invalid sockaddr family\n", __func__);
-                return NULL;
+                return -EINVAL;
         }
 
-        if (local_hash == mapped_hash) /* if port mapper isn't available */
-                hash = local_hash;
+        if (a_hash == b_hash) /* if port mapper isn't available */
+                *hash = a_hash;
         else
-                hash = jhash_2words(local_hash, mapped_hash, 0);
+                *hash = jhash_2words(a_hash, b_hash, 0);
+        return 0;
+}
+
+static struct hlist_head *get_mapinfo_hash_bucket(struct sockaddr_storage
+                                *local_sockaddr, struct sockaddr_storage
+                                *mapped_sockaddr)
+{
+        u32 hash;
+        int ret;
 
-        return &iwpm_hash_bucket[hash & IWPM_HASH_BUCKET_MASK];
+        ret = get_hash_bucket(local_sockaddr, mapped_sockaddr, &hash);
+        if (ret)
+                return NULL;
+        return &iwpm_hash_bucket[hash & IWPM_MAPINFO_HASH_MASK];
+}
+
+static struct hlist_head *get_reminfo_hash_bucket(struct sockaddr_storage
+                                *mapped_loc_sockaddr, struct sockaddr_storage
+                                *mapped_rem_sockaddr)
+{
+        u32 hash;
+        int ret;
+
+        ret = get_hash_bucket(mapped_loc_sockaddr, mapped_rem_sockaddr, &hash);
+        if (ret)
+                return NULL;
+        return &iwpm_reminfo_bucket[hash & IWPM_REMINFO_HASH_MASK];
 }
 
 static int send_mapinfo_num(u32 mapping_num, u8 nl_client, int iwpm_pid)
@@ -512,7 +654,7 @@ int iwpm_send_mapinfo(u8 nl_client, int iwpm_pid)
         }
         skb_num++;
         spin_lock_irqsave(&iwpm_mapinfo_lock, flags);
-        for (i = 0; i < IWPM_HASH_BUCKET_SIZE; i++) {
+        for (i = 0; i < IWPM_MAPINFO_HASH_SIZE; i++) {
                 hlist_for_each_entry(map_info, &iwpm_hash_bucket[i],
                                      hlist_node) {
                         if (map_info->nl_client != nl_client)
@@ -595,7 +737,7 @@ int iwpm_mapinfo_available(void)
 
         spin_lock_irqsave(&iwpm_mapinfo_lock, flags);
         if (iwpm_hash_bucket) {
-                for (i = 0; i < IWPM_HASH_BUCKET_SIZE; i++) {
+                for (i = 0; i < IWPM_MAPINFO_HASH_SIZE; i++) {
                         if (!hlist_empty(&iwpm_hash_bucket[i])) {
                                 full_bucket = 1;
                                 break;
diff --git a/drivers/infiniband/core/iwpm_util.h b/drivers/infiniband/core/iwpm_util.h
index 9777c869a140..ee2d9ff095be 100644
--- a/drivers/infiniband/core/iwpm_util.h
+++ b/drivers/infiniband/core/iwpm_util.h
@@ -76,6 +76,14 @@ struct iwpm_mapping_info {
         u8     nl_client;
 };
 
+struct iwpm_remote_info {
+        struct hlist_node hlist_node;
+        struct sockaddr_storage remote_sockaddr;
+        struct sockaddr_storage mapped_loc_sockaddr;
+        struct sockaddr_storage mapped_rem_sockaddr;
+        u8     nl_client;
+};
+
 struct iwpm_admin_data {
         atomic_t refcount;
         atomic_t nlmsg_seq;
@@ -128,6 +136,13 @@ int iwpm_wait_complete_req(struct iwpm_nlmsg_request *nlmsg_request);
 int iwpm_get_nlmsg_seq(void);
 
 /**
+ * iwpm_add_reminfo - Add remote address info of the connecting peer
+ *                    to the remote info hash table
+ * @reminfo: The remote info to be added
+ */
+void iwpm_add_remote_info(struct iwpm_remote_info *reminfo);
+
+/**
  * iwpm_valid_client - Check if the port mapper client is valid
  * @nl_client: The index of the netlink client
  *
diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index 8b8cc6fa0ab0..40becdb3196e 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -446,7 +446,6 @@ static int ib_umem_odp_map_dma_single_page(
         int remove_existing_mapping = 0;
         int ret = 0;
 
-        mutex_lock(&umem->odp_data->umem_mutex);
         /*
          * Note: we avoid writing if seq is different from the initial seq, to
          * handle case of a racing notifier. This check also allows us to bail
@@ -479,8 +478,6 @@ static int ib_umem_odp_map_dma_single_page(
         }
 
 out:
-        mutex_unlock(&umem->odp_data->umem_mutex);
-
         /* On Demand Paging - avoid pinning the page */
         if (umem->context->invalidate_range || !stored_page)
                 put_page(page);
@@ -586,6 +583,7 @@ int ib_umem_odp_map_dma_pages(struct ib_umem *umem, u64 user_virt, u64 bcnt,
 
                 bcnt -= min_t(size_t, npages << PAGE_SHIFT, bcnt);
                 user_virt += npages << PAGE_SHIFT;
+                mutex_lock(&umem->odp_data->umem_mutex);
                 for (j = 0; j < npages; ++j) {
                         ret = ib_umem_odp_map_dma_single_page(
                                 umem, k, base_virt_addr, local_page_list[j],
@@ -594,6 +592,7 @@ int ib_umem_odp_map_dma_pages(struct ib_umem *umem, u64 user_virt, u64 bcnt,
                                 break;
                         k++;
                 }
+                mutex_unlock(&umem->odp_data->umem_mutex);
 
                 if (ret < 0) {
                         /* Release left over pages when handling errors. */
@@ -633,12 +632,11 @@ void ib_umem_odp_unmap_dma_pages(struct ib_umem *umem, u64 virt,
          * faults from completion. We might be racing with other
          * invalidations, so we must make sure we free each page only
          * once. */
+        mutex_lock(&umem->odp_data->umem_mutex);
         for (addr = virt; addr < bound; addr += (u64)umem->page_size) {
                 idx = (addr - ib_umem_start(umem)) / PAGE_SIZE;
-                mutex_lock(&umem->odp_data->umem_mutex);
                 if (umem->odp_data->page_list[idx]) {
                         struct page *page = umem->odp_data->page_list[idx];
-                        struct page *head_page = compound_head(page);
                         dma_addr_t dma = umem->odp_data->dma_list[idx];
                         dma_addr_t dma_addr = dma & ODP_DMA_ADDR_MASK;
 
@@ -646,7 +644,8 @@ void ib_umem_odp_unmap_dma_pages(struct ib_umem *umem, u64 virt,
 
                         ib_dma_unmap_page(dev, dma_addr, PAGE_SIZE,
                                           DMA_BIDIRECTIONAL);
-                        if (dma & ODP_WRITE_ALLOWED_BIT)
+                        if (dma & ODP_WRITE_ALLOWED_BIT) {
+                                struct page *head_page = compound_head(page);
                                 /*
                                  * set_page_dirty prefers being called with
                                  * the page lock. However, MMU notifiers are
@@ -657,13 +656,14 @@ void ib_umem_odp_unmap_dma_pages(struct ib_umem *umem, u64 virt,
                                  * be removed.
                                  */
                                 set_page_dirty(head_page);
+                        }
                         /* on demand pinning support */
                         if (!umem->context->invalidate_range)
                                 put_page(page);
                         umem->odp_data->page_list[idx] = NULL;
                         umem->odp_data->dma_list[idx] = 0;
                 }
-                mutex_unlock(&umem->odp_data->umem_mutex);
         }
+        mutex_unlock(&umem->odp_data->umem_mutex);
 }
 EXPORT_SYMBOL(ib_umem_odp_unmap_dma_pages);
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 57176ddd4c50..bb95a6c0477b 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -583,6 +583,22 @@ static void c4iw_record_pm_msg(struct c4iw_ep *ep,
                 sizeof(ep->com.mapped_remote_addr));
 }
 
+static int get_remote_addr(struct c4iw_ep *ep)
+{
+        int ret;
+
+        print_addr(&ep->com, __func__, "get_remote_addr");
+
+        ret = iwpm_get_remote_info(&ep->com.mapped_local_addr,
+                                   &ep->com.mapped_remote_addr,
+                                   &ep->com.remote_addr, RDMA_NL_C4IW);
+        if (ret)
+                pr_info(MOD "Unable to find remote peer addr info - err %d\n",
+                        ret);
+
+        return ret;
+}
+
 static void best_mtu(const unsigned short *mtus, unsigned short mtu,
                      unsigned int *idx, int use_ts, int ipv6)
 {
@@ -675,7 +691,7 @@ static int send_connect(struct c4iw_ep *ep)
         if (is_t5(ep->com.dev->rdev.lldi.adapter_type)) {
                 opt2 |= T5_OPT_2_VALID_F;
                 opt2 |= CONG_CNTRL_V(CONG_ALG_TAHOE);
-                opt2 |= CONG_CNTRL_VALID; /* OPT_2_ISS for T5 */
+                opt2 |= T5_ISS_F;
         }
         t4_set_arp_err_handler(skb, ep, act_open_req_arp_failure);
 
@@ -2042,9 +2058,12 @@ static int act_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
              status, status2errno(status));
 
         if (is_neg_adv(status)) {
-                dev_warn(&dev->rdev.lldi.pdev->dev,
-                         "Connection problems for atid %u status %u (%s)\n",
-                         atid, status, neg_adv_str(status));
+                PDBG("%s Connection problems for atid %u status %u (%s)\n",
+                     __func__, atid, status, neg_adv_str(status));
+                ep->stats.connect_neg_adv++;
+                mutex_lock(&dev->rdev.stats.lock);
+                dev->rdev.stats.neg_adv++;
+                mutex_unlock(&dev->rdev.stats.lock);
                 return 0;
         }
 
@@ -2214,7 +2233,7 @@ static void accept_cr(struct c4iw_ep *ep, struct sk_buff *skb,
                 u32 isn = (prandom_u32() & ~7UL) - 1;
                 opt2 |= T5_OPT_2_VALID_F;
                 opt2 |= CONG_CNTRL_V(CONG_ALG_TAHOE);
-                opt2 |= CONG_CNTRL_VALID; /* OPT_2_ISS for T5 */
+                opt2 |= T5_ISS_F;
                 rpl5 = (void *)rpl;
                 memset(&rpl5->iss, 0, roundup(sizeof(*rpl5)-sizeof(*rpl), 16));
                 if (peer2peer)
@@ -2352,27 +2371,57 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
         state_set(&child_ep->com, CONNECTING);
         child_ep->com.dev = dev;
         child_ep->com.cm_id = NULL;
+
+        /*
+         * The mapped_local and mapped_remote addresses get setup with
+         * the actual 4-tuple.  The local address will be based on the
+         * actual local address of the connection, but on the port number
+         * of the parent listening endpoint.  The remote address is
+         * setup based on a query to the IWPM since we don't know what it
+         * originally was before mapping.  If no mapping was done, then
+         * mapped_remote == remote, and mapped_local == local.
+         */
         if (iptype == 4) {
                 struct sockaddr_in *sin = (struct sockaddr_in *)
-                        &child_ep->com.local_addr;
+                        &child_ep->com.mapped_local_addr;
+
                 sin->sin_family = PF_INET;
                 sin->sin_port = local_port;
                 sin->sin_addr.s_addr = *(__be32 *)local_ip;
-                sin = (struct sockaddr_in *)&child_ep->com.remote_addr;
+
+                sin = (struct sockaddr_in *)&child_ep->com.local_addr;
+                sin->sin_family = PF_INET;
+                sin->sin_port = ((struct sockaddr_in *)
+                                 &parent_ep->com.local_addr)->sin_port;
+                sin->sin_addr.s_addr = *(__be32 *)local_ip;
+
+                sin = (struct sockaddr_in *)&child_ep->com.mapped_remote_addr;
                 sin->sin_family = PF_INET;
                 sin->sin_port = peer_port;
                 sin->sin_addr.s_addr = *(__be32 *)peer_ip;
         } else {
                 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)
-                        &child_ep->com.local_addr;
+                        &child_ep->com.mapped_local_addr;
+
                 sin6->sin6_family = PF_INET6;
                 sin6->sin6_port = local_port;
                 memcpy(sin6->sin6_addr.s6_addr, local_ip, 16);
-                sin6 = (struct sockaddr_in6 *)&child_ep->com.remote_addr;
+
+                sin6 = (struct sockaddr_in6 *)&child_ep->com.local_addr;
+                sin6->sin6_family = PF_INET6;
+                sin6->sin6_port = ((struct sockaddr_in6 *)
+                                   &parent_ep->com.local_addr)->sin6_port;
+                memcpy(sin6->sin6_addr.s6_addr, local_ip, 16);
+
+                sin6 = (struct sockaddr_in6 *)&child_ep->com.mapped_remote_addr;
                 sin6->sin6_family = PF_INET6;
                 sin6->sin6_port = peer_port;
                 memcpy(sin6->sin6_addr.s6_addr, peer_ip, 16);
         }
+        memcpy(&child_ep->com.remote_addr, &child_ep->com.mapped_remote_addr,
+               sizeof(child_ep->com.remote_addr));
+        get_remote_addr(child_ep);
+
         c4iw_get_ep(&parent_ep->com);
         child_ep->parent_ep = parent_ep;
         child_ep->tos = PASS_OPEN_TOS_G(ntohl(req->tos_stid));
@@ -2520,9 +2569,13 @@ static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
 
         ep = lookup_tid(t, tid);
         if (is_neg_adv(req->status)) {
-                dev_warn(&dev->rdev.lldi.pdev->dev,
-                         "Negative advice on abort - tid %u status %d (%s)\n",
-                         ep->hwtid, req->status, neg_adv_str(req->status));
+                PDBG("%s Negative advice on abort- tid %u status %d (%s)\n",
+                     __func__, ep->hwtid, req->status,
+                     neg_adv_str(req->status));
+                ep->stats.abort_neg_adv++;
+                mutex_lock(&dev->rdev.stats.lock);
+                dev->rdev.stats.neg_adv++;
+                mutex_unlock(&dev->rdev.stats.lock);
                 return 0;
         }
         PDBG("%s ep %p tid %u state %u\n", __func__, ep, ep->hwtid,
@@ -3571,7 +3624,7 @@ static void send_fw_pass_open_req(struct c4iw_dev *dev, struct sk_buff *skb,
          * TP will ignore any value > 0 for MSS index.
          */
         req->tcb.opt0 = cpu_to_be64(MSS_IDX_V(0xF));
-        req->cookie = (unsigned long)skb;
+        req->cookie = (uintptr_t)skb;
 
         set_wr_txq(req_skb, CPL_PRIORITY_CONTROL, port_id);
         ret = cxgb4_ofld_send(dev->rdev.lldi.ports[0], req_skb);
@@ -3931,9 +3984,11 @@ static int peer_abort_intr(struct c4iw_dev *dev, struct sk_buff *skb)
                 return 0;
         }
         if (is_neg_adv(req->status)) {
-                dev_warn(&dev->rdev.lldi.pdev->dev,
-                         "Negative advice on abort - tid %u status %d (%s)\n",
-                         ep->hwtid, req->status, neg_adv_str(req->status));
+                PDBG("%s Negative advice on abort- tid %u status %d (%s)\n",
+                     __func__, ep->hwtid, req->status,
+                     neg_adv_str(req->status));
+                ep->stats.abort_neg_adv++;
+                dev->rdev.stats.neg_adv++;
                 kfree_skb(skb);
                 return 0;
         }
diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
index ab7692ac2044..68ddb3710215 100644
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -55,7 +55,7 @@ static int destroy_cq(struct c4iw_rdev *rdev, struct t4_cq *cq,
                         FW_RI_RES_WR_NRES_V(1) |
                         FW_WR_COMPL_F);
         res_wr->len16_pkd = cpu_to_be32(DIV_ROUND_UP(wr_len, 16));
-        res_wr->cookie = (unsigned long) &wr_wait;
+        res_wr->cookie = (uintptr_t)&wr_wait;
         res = res_wr->res;
         res->u.cq.restype = FW_RI_RES_TYPE_CQ;
         res->u.cq.op = FW_RI_RES_OP_RESET;
@@ -125,7 +125,7 @@ static int create_cq(struct c4iw_rdev *rdev, struct t4_cq *cq,
                         FW_RI_RES_WR_NRES_V(1) |
                         FW_WR_COMPL_F);
         res_wr->len16_pkd = cpu_to_be32(DIV_ROUND_UP(wr_len, 16));
-        res_wr->cookie = (unsigned long) &wr_wait;
+        res_wr->cookie = (uintptr_t)&wr_wait;
         res = res_wr->res;
         res->u.cq.restype = FW_RI_RES_TYPE_CQ;
         res->u.cq.op = FW_RI_RES_OP_WRITE;
@@ -156,12 +156,19 @@ static int create_cq(struct c4iw_rdev *rdev, struct t4_cq *cq,
                 goto err4;
 
         cq->gen = 1;
-        cq->gts = rdev->lldi.gts_reg;
         cq->rdev = rdev;
         if (user) {
-                cq->ugts = (u64)pci_resource_start(rdev->lldi.pdev, 2) +
-                                        (cq->cqid << rdev->cqshift);
-                cq->ugts &= PAGE_MASK;
+                u32 off = (cq->cqid << rdev->cqshift) & PAGE_MASK;
+
+                cq->ugts = (u64)rdev->bar2_pa + off;
+        } else if (is_t4(rdev->lldi.adapter_type)) {
+                cq->gts = rdev->lldi.gts_reg;
+                cq->qid_mask = -1U;
+        } else {
+                u32 off = ((cq->cqid << rdev->cqshift) & PAGE_MASK) + 12;
+
+                cq->gts = rdev->bar2_kva + off;
+                cq->qid_mask = rdev->qpmask;
         }
         return 0;
 err4:
@@ -970,8 +977,7 @@ struct ib_cq *c4iw_create_cq(struct ib_device *ibdev, int entries,
         }
         PDBG("%s cqid 0x%0x chp %p size %u memsize %zu, dma_addr 0x%0llx\n",
              __func__, chp->cq.cqid, chp, chp->cq.size,
-             chp->cq.memsize,
-             (unsigned long long) chp->cq.dma_addr);
+             chp->cq.memsize, (unsigned long long) chp->cq.dma_addr);
         return &chp->ibcq;
 err5:
         kfree(mm2);
diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index 8fb295e4a9ab..cf54d6922dc4 100644
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -93,6 +93,7 @@ static struct ibnl_client_cbs c4iw_nl_cb_table[] = {
         [RDMA_NL_IWPM_ADD_MAPPING] = {.dump = iwpm_add_mapping_cb},
         [RDMA_NL_IWPM_QUERY_MAPPING] = {.dump = iwpm_add_and_query_mapping_cb},
         [RDMA_NL_IWPM_HANDLE_ERR] = {.dump = iwpm_mapping_error_cb},
+        [RDMA_NL_IWPM_REMOTE_INFO] = {.dump = iwpm_remote_info_cb},
         [RDMA_NL_IWPM_MAPINFO] = {.dump = iwpm_mapping_info_cb},
         [RDMA_NL_IWPM_MAPINFO_NUM] = {.dump = iwpm_ack_mapping_info_cb}
 };
@@ -151,7 +152,7 @@ static int wr_log_show(struct seq_file *seq, void *v)
         int prev_ts_set = 0;
         int idx, end;
 
-#define ts2ns(ts) div64_ul((ts) * dev->rdev.lldi.cclk_ps, 1000)
+#define ts2ns(ts) div64_u64((ts) * dev->rdev.lldi.cclk_ps, 1000)
 
         idx = atomic_read(&dev->rdev.wr_log_idx) &
                 (dev->rdev.wr_log_size - 1);
@@ -489,6 +490,7 @@ static int stats_show(struct seq_file *seq, void *v)
                    dev->rdev.stats.act_ofld_conn_fails);
         seq_printf(seq, "PAS_OFLD_CONN_FAILS: %10llu\n",
                    dev->rdev.stats.pas_ofld_conn_fails);
+        seq_printf(seq, "NEG_ADV_RCVD: %10llu\n", dev->rdev.stats.neg_adv);
         seq_printf(seq, "AVAILABLE IRD: %10u\n", dev->avail_ird);
         return 0;
 }
@@ -560,10 +562,13 @@ static int dump_ep(int id, void *p, void *data)
                 cc = snprintf(epd->buf + epd->pos, space,
                               "ep %p cm_id %p qp %p state %d flags 0x%lx "
                               "history 0x%lx hwtid %d atid %d "
+                              "conn_na %u abort_na %u "
                               "%pI4:%d/%d <-> %pI4:%d/%d\n",
                               ep, ep->com.cm_id, ep->com.qp,
                               (int)ep->com.state, ep->com.flags,
                               ep->com.history, ep->hwtid, ep->atid,
+                              ep->stats.connect_neg_adv,
+                              ep->stats.abort_neg_adv,
                               &lsin->sin_addr, ntohs(lsin->sin_port),
                               ntohs(mapped_lsin->sin_port),
                               &rsin->sin_addr, ntohs(rsin->sin_port),
@@ -581,10 +586,13 @@ static int dump_ep(int id, void *p, void *data)
                 cc = snprintf(epd->buf + epd->pos, space,
                               "ep %p cm_id %p qp %p state %d flags 0x%lx "
                               "history 0x%lx hwtid %d atid %d "
+                              "conn_na %u abort_na %u "
                               "%pI6:%d/%d <-> %pI6:%d/%d\n",
                               ep, ep->com.cm_id, ep->com.qp,
                               (int)ep->com.state, ep->com.flags,
                               ep->com.history, ep->hwtid, ep->atid,
+                              ep->stats.connect_neg_adv,
+                              ep->stats.abort_neg_adv,
                               &lsin6->sin6_addr, ntohs(lsin6->sin6_port),
                               ntohs(mapped_lsin6->sin6_port),
                               &rsin6->sin6_addr, ntohs(rsin6->sin6_port),
@@ -765,6 +773,29 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev)
         c4iw_init_dev_ucontext(rdev, &rdev->uctx);
 
         /*
+         * This implementation assumes udb_density == ucq_density!  Eventually
+         * we might need to support this but for now fail the open. Also the
+         * cqid and qpid range must match for now.
+         */
+        if (rdev->lldi.udb_density != rdev->lldi.ucq_density) {
+                pr_err(MOD "%s: unsupported udb/ucq densities %u/%u\n",
+                       pci_name(rdev->lldi.pdev), rdev->lldi.udb_density,
+                       rdev->lldi.ucq_density);
+                err = -EINVAL;
+                goto err1;
+        }
+        if (rdev->lldi.vr->qp.start != rdev->lldi.vr->cq.start ||
+            rdev->lldi.vr->qp.size != rdev->lldi.vr->cq.size) {
+                pr_err(MOD "%s: unsupported qp and cq id ranges "
+                       "qp start %u size %u cq start %u size %u\n",
+                       pci_name(rdev->lldi.pdev), rdev->lldi.vr->qp.start,
+                       rdev->lldi.vr->qp.size, rdev->lldi.vr->cq.size,
+                       rdev->lldi.vr->cq.size);
+                err = -EINVAL;
+                goto err1;
+        }
+
+        /*
          * qpshift is the number of bits to shift the qpid left in order
          * to get the correct address of the doorbell for that qp.
          */
@@ -784,10 +815,10 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev)
              rdev->lldi.vr->qp.size,
              rdev->lldi.vr->cq.start,
              rdev->lldi.vr->cq.size);
-        PDBG("udb len 0x%x udb base %llx db_reg %p gts_reg %p qpshift %lu "
+        PDBG("udb len 0x%x udb base %p db_reg %p gts_reg %p qpshift %lu "
              "qpmask 0x%x cqshift %lu cqmask 0x%x\n",
              (unsigned)pci_resource_len(rdev->lldi.pdev, 2),
-             (u64)pci_resource_start(rdev->lldi.pdev, 2),
+             (void *)pci_resource_start(rdev->lldi.pdev, 2),
              rdev->lldi.db_reg,
              rdev->lldi.gts_reg,
              rdev->qpshift, rdev->qpmask,
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
index d87e1650f643..97bb5550a6cf 100644
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -137,6 +137,7 @@ struct c4iw_stats {
         u64  tcam_full;
         u64  act_ofld_conn_fails;
         u64  pas_ofld_conn_fails;
+        u64  neg_adv;
 };
 
 struct c4iw_hw_queue {
@@ -814,6 +815,11 @@ struct c4iw_listen_ep {
         int backlog;
 };
 
+struct c4iw_ep_stats {
+        unsigned connect_neg_adv;
+        unsigned abort_neg_adv;
+};
+
 struct c4iw_ep {
         struct c4iw_ep_common com;
         struct c4iw_ep *parent_ep;
@@ -846,6 +852,7 @@ struct c4iw_ep {
         unsigned int retry_count;
         int snd_win;
         int rcv_win;
+        struct c4iw_ep_stats stats;
 };
 
 static inline void print_addr(struct c4iw_ep_common *epc, const char *func,
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index 3ef0cf9f5c44..cff815b91707 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -144,7 +144,7 @@ static int _c4iw_write_mem_inline(struct c4iw_rdev *rdev, u32 addr, u32 len,
                 if (i == (num_wqe-1)) {
                         req->wr.wr_hi = cpu_to_be32(FW_WR_OP_V(FW_ULPTX_WR) |
                                                     FW_WR_COMPL_F);
-                        req->wr.wr_lo = (__force __be64)(unsigned long) &wr_wait;
+                        req->wr.wr_lo = (__force __be64)&wr_wait;
                 } else
                         req->wr.wr_hi = cpu_to_be32(FW_WR_OP_V(FW_ULPTX_WR));
                 req->wr.wr_mid = cpu_to_be32(
@@ -676,12 +676,12 @@ struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc)
         mhp->attr.zbva = 0;
         mhp->attr.va_fbo = 0;
         mhp->attr.page_size = 0;
-        mhp->attr.len = ~0UL;
+        mhp->attr.len = ~0ULL;
         mhp->attr.pbl_size = 0;
 
         ret = write_tpt_entry(&rhp->rdev, 0, &stag, 1, php->pdid,
                               FW_RI_STAG_NSMR, mhp->attr.perms,
-                              mhp->attr.mw_bind_enable, 0, 0, ~0UL, 0, 0, 0);
+                              mhp->attr.mw_bind_enable, 0, 0, ~0ULL, 0, 0, 0);
         if (ret)
                 goto err1;
 
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 15cae5a31018..389ced335bc5 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -275,7 +275,7 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq,
                         FW_RI_RES_WR_NRES_V(2) |
                         FW_WR_COMPL_F);
         res_wr->len16_pkd = cpu_to_be32(DIV_ROUND_UP(wr_len, 16));
-        res_wr->cookie = (unsigned long) &wr_wait;
+        res_wr->cookie = (uintptr_t)&wr_wait;
         res = res_wr->res;
         res->u.sqrq.restype = FW_RI_RES_TYPE_SQ;
         res->u.sqrq.op = FW_RI_RES_OP_WRITE;
@@ -1209,7 +1209,7 @@ static int rdma_fini(struct c4iw_dev *rhp, struct c4iw_qp *qhp,
         wqe->flowid_len16 = cpu_to_be32(
                 FW_WR_FLOWID_V(ep->hwtid) |
                 FW_WR_LEN16_V(DIV_ROUND_UP(sizeof(*wqe), 16)));
-        wqe->cookie = (unsigned long) &ep->com.wr_wait;
+        wqe->cookie = (uintptr_t)&ep->com.wr_wait;
 
         wqe->u.fini.type = FW_RI_TYPE_FINI;
         ret = c4iw_ofld_send(&rhp->rdev, skb);
@@ -1279,7 +1279,7 @@ static int rdma_init(struct c4iw_dev *rhp, struct c4iw_qp *qhp)
                 FW_WR_FLOWID_V(qhp->ep->hwtid) |
                 FW_WR_LEN16_V(DIV_ROUND_UP(sizeof(*wqe), 16)));
 
-        wqe->cookie = (unsigned long) &qhp->ep->com.wr_wait;
+        wqe->cookie = (uintptr_t)&qhp->ep->com.wr_wait;
 
         wqe->u.init.type = FW_RI_TYPE_INIT;
         wqe->u.init.mpareqbit_p2ptype =
@@ -1766,11 +1766,11 @@ struct ib_qp *c4iw_create_qp(struct ib_pd *pd, struct ib_qp_init_attr *attrs,
                 mm2->len = PAGE_ALIGN(qhp->wq.rq.memsize);
                 insert_mmap(ucontext, mm2);
                 mm3->key = uresp.sq_db_gts_key;
-                mm3->addr = (__force unsigned long) qhp->wq.sq.udb;
+                mm3->addr = (__force unsigned long)qhp->wq.sq.udb;
                 mm3->len = PAGE_SIZE;
                 insert_mmap(ucontext, mm3);
                 mm4->key = uresp.rq_db_gts_key;
-                mm4->addr = (__force unsigned long) qhp->wq.rq.udb;
+                mm4->addr = (__force unsigned long)qhp->wq.rq.udb;
                 mm4->len = PAGE_SIZE;
                 insert_mmap(ucontext, mm4);
                 if (mm5) {
diff --git a/drivers/infiniband/hw/cxgb4/t4.h b/drivers/infiniband/hw/cxgb4/t4.h
index 871cdcac7be2..7f2a6c244d25 100644
--- a/drivers/infiniband/hw/cxgb4/t4.h
+++ b/drivers/infiniband/hw/cxgb4/t4.h
@@ -539,6 +539,7 @@ struct t4_cq {
         size_t memsize;
         __be64 bits_type_ts;
         u32 cqid;
+        u32 qid_mask;
         int vector;
         u16 size; /* including status page */
         u16 cidx;
@@ -563,12 +564,12 @@ static inline int t4_arm_cq(struct t4_cq *cq, int se)
         set_bit(CQ_ARMED, &cq->flags);
         while (cq->cidx_inc > CIDXINC_M) {
                 val = SEINTARM_V(0) | CIDXINC_V(CIDXINC_M) | TIMERREG_V(7) |
-                      INGRESSQID_V(cq->cqid);
+                      INGRESSQID_V(cq->cqid & cq->qid_mask);
                 writel(val, cq->gts);
                 cq->cidx_inc -= CIDXINC_M;
         }
         val = SEINTARM_V(se) | CIDXINC_V(cq->cidx_inc) | TIMERREG_V(6) |
-              INGRESSQID_V(cq->cqid);
+              INGRESSQID_V(cq->cqid & cq->qid_mask);
         writel(val, cq->gts);
         cq->cidx_inc = 0;
         return 0;
@@ -601,7 +602,7 @@ static inline void t4_hwcq_consume(struct t4_cq *cq)
                 u32 val;
 
                 val = SEINTARM_V(0) | CIDXINC_V(cq->cidx_inc) | TIMERREG_V(7) |
-                      INGRESSQID_V(cq->cqid);
+                      INGRESSQID_V(cq->cqid & cq->qid_mask);
                 writel(val, cq->gts);
                 cq->cidx_inc = 0;
         }
diff --git a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
index 5e53327fc647..343e8daf2270 100644
--- a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
+++ b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
@@ -848,6 +848,8 @@ enum {                     /* TCP congestion control algorithms */
 #define CONG_CNTRL_V(x) ((x) << CONG_CNTRL_S)
 #define CONG_CNTRL_G(x) (((x) >> CONG_CNTRL_S) & CONG_CNTRL_M)
 
-#define CONG_CNTRL_VALID   (1 << 18)
+#define T5_ISS_S    18
+#define T5_ISS_V(x) ((x) << T5_ISS_S)
+#define T5_ISS_F    T5_ISS_V(1U)
 
 #endif /* _T4FW_RI_API_H_ */
diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
index 3b2a6dc8ea99..9f9d5c563a61 100644
--- a/drivers/infiniband/hw/nes/nes.c
+++ b/drivers/infiniband/hw/nes/nes.c
@@ -116,6 +116,7 @@ static struct ibnl_client_cbs nes_nl_cb_table[] = {
         [RDMA_NL_IWPM_REG_PID] = {.dump = iwpm_register_pid_cb},
         [RDMA_NL_IWPM_ADD_MAPPING] = {.dump = iwpm_add_mapping_cb},
         [RDMA_NL_IWPM_QUERY_MAPPING] = {.dump = iwpm_add_and_query_mapping_cb},
+        [RDMA_NL_IWPM_REMOTE_INFO] = {.dump = iwpm_remote_info_cb},
         [RDMA_NL_IWPM_HANDLE_ERR] = {.dump = iwpm_mapping_error_cb},
         [RDMA_NL_IWPM_MAPINFO] = {.dump = iwpm_mapping_info_cb},
         [RDMA_NL_IWPM_MAPINFO_NUM] = {.dump = iwpm_ack_mapping_info_cb}
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 6f09a72e78d7..72b43417cbe3 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -596,27 +596,52 @@ static void nes_form_reg_msg(struct nes_vnic *nesvnic,
         memcpy(pm_msg->if_name, nesvnic->netdev->name, IWPM_IFNAME_SIZE);
 }
 
+static void record_sockaddr_info(struct sockaddr_storage *addr_info,
+                                        nes_addr_t *ip_addr, u16 *port_num)
+{
+        struct sockaddr_in *in_addr = (struct sockaddr_in *)addr_info;
+
+        if (in_addr->sin_family == AF_INET) {
+                *ip_addr = ntohl(in_addr->sin_addr.s_addr);
+                *port_num = ntohs(in_addr->sin_port);
+        }
+}
+
 /*
  * nes_record_pm_msg - Save the received mapping info
  */
 static void nes_record_pm_msg(struct nes_cm_info *cm_info,
                         struct iwpm_sa_data *pm_msg)
 {
-        struct sockaddr_in *mapped_loc_addr =
-                        (struct sockaddr_in *)&pm_msg->mapped_loc_addr;
-        struct sockaddr_in *mapped_rem_addr =
-                        (struct sockaddr_in *)&pm_msg->mapped_rem_addr;
-
-        if (mapped_loc_addr->sin_family == AF_INET) {
-                cm_info->mapped_loc_addr =
-                        ntohl(mapped_loc_addr->sin_addr.s_addr);
-                cm_info->mapped_loc_port = ntohs(mapped_loc_addr->sin_port);
-        }
-        if (mapped_rem_addr->sin_family == AF_INET) {
-                cm_info->mapped_rem_addr =
-                        ntohl(mapped_rem_addr->sin_addr.s_addr);
-                cm_info->mapped_rem_port = ntohs(mapped_rem_addr->sin_port);
-        }
+        record_sockaddr_info(&pm_msg->mapped_loc_addr,
+                &cm_info->mapped_loc_addr, &cm_info->mapped_loc_port);
+
+        record_sockaddr_info(&pm_msg->mapped_rem_addr,
+                &cm_info->mapped_rem_addr, &cm_info->mapped_rem_port);
+}
+
+/*
+ * nes_get_reminfo - Get the address info of the remote connecting peer
+ */
+static int nes_get_remote_addr(struct nes_cm_node *cm_node)
+{
+        struct sockaddr_storage mapped_loc_addr, mapped_rem_addr;
+        struct sockaddr_storage remote_addr;
+        int ret;
+
+        nes_create_sockaddr(htonl(cm_node->mapped_loc_addr),
+                        htons(cm_node->mapped_loc_port), &mapped_loc_addr);
+        nes_create_sockaddr(htonl(cm_node->mapped_rem_addr),
+                        htons(cm_node->mapped_rem_port), &mapped_rem_addr);
+
+        ret = iwpm_get_remote_info(&mapped_loc_addr, &mapped_rem_addr,
+                                &remote_addr, RDMA_NL_NES);
+        if (ret)
+                nes_debug(NES_DBG_CM, "Unable to find remote peer address info\n");
+        else
+                record_sockaddr_info(&remote_addr, &cm_node->rem_addr,
+                                &cm_node->rem_port);
+        return ret;
 }
 
 /**
@@ -1566,9 +1591,14 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
                 return NULL;
 
         /* set our node specific transport info */
-        cm_node->loc_addr = cm_info->loc_addr;
+        if (listener) {
+                cm_node->loc_addr = listener->loc_addr;
+                cm_node->loc_port = listener->loc_port;
+        } else {
+                cm_node->loc_addr = cm_info->loc_addr;
+                cm_node->loc_port = cm_info->loc_port;
+        }
         cm_node->rem_addr = cm_info->rem_addr;
-        cm_node->loc_port = cm_info->loc_port;
         cm_node->rem_port = cm_info->rem_port;
 
         cm_node->mapped_loc_addr = cm_info->mapped_loc_addr;
@@ -2151,6 +2181,7 @@ static int handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
                 cm_node->state = NES_CM_STATE_ESTABLISHED;
                 if (datasize) {
                         cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize;
+                        nes_get_remote_addr(cm_node);
                         handle_rcv_mpa(cm_node, skb);
                 } else { /* rcvd ACK only */
                         dev_kfree_skb_any(skb);
diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h
index ffd48bfc4923..ba5173e24973 100644
--- a/drivers/infiniband/hw/qib/qib.h
+++ b/drivers/infiniband/hw/qib/qib.h
@@ -1136,7 +1136,6 @@ extern struct qib_devdata *qib_lookup(int unit);
 extern u32 qib_cpulist_count;
 extern unsigned long *qib_cpulist;
 
-extern unsigned qib_wc_pat;
 extern unsigned qib_cc_table_size;
 int qib_init(struct qib_devdata *, int);
 int init_chip_wc_pat(struct qib_devdata *dd, u32);
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index 9ea6c440a00c..725881890c4a 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -835,7 +835,8 @@ static int mmap_piobufs(struct vm_area_struct *vma,
         vma->vm_flags &= ~VM_MAYREAD;
         vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND;
 
-        if (qib_wc_pat)
+        /* We used PAT if wc_cookie == 0 */
+        if (!dd->wc_cookie)
                 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 
         ret = io_remap_pfn_range(vma, vma->vm_start, phys >> PAGE_SHIFT,
diff --git a/drivers/infiniband/hw/qib/qib_iba6120.c b/drivers/infiniband/hw/qib/qib_iba6120.c
index 0d2ba59af30a..4b927809d1a1 100644
--- a/drivers/infiniband/hw/qib/qib_iba6120.c
+++ b/drivers/infiniband/hw/qib/qib_iba6120.c
@@ -3315,11 +3315,9 @@ static int init_6120_variables(struct qib_devdata *dd)
         qib_6120_config_ctxts(dd);
         qib_set_ctxtcnt(dd);
 
-        if (qib_wc_pat) {
-                ret = init_chip_wc_pat(dd, 0);
-                if (ret)
-                        goto bail;
-        }
+        ret = init_chip_wc_pat(dd, 0);
+        if (ret)
+                goto bail;
         set_6120_baseaddrs(dd); /* set chip access pointers now */
 
         ret = 0;
diff --git a/drivers/infiniband/hw/qib/qib_iba7220.c b/drivers/infiniband/hw/qib/qib_iba7220.c
index 22affda8af88..00b2af211157 100644
--- a/drivers/infiniband/hw/qib/qib_iba7220.c
+++ b/drivers/infiniband/hw/qib/qib_iba7220.c
@@ -4126,11 +4126,9 @@ static int qib_init_7220_variables(struct qib_devdata *dd)
         qib_7220_config_ctxts(dd);
         qib_set_ctxtcnt(dd);  /* needed for PAT setup */
 
-        if (qib_wc_pat) {
-                ret = init_chip_wc_pat(dd, 0);
-                if (ret)
-                        goto bail;
-        }
+        ret = init_chip_wc_pat(dd, 0);
+        if (ret)
+                goto bail;
         set_7220_baseaddrs(dd); /* set chip access pointers now */
 
         ret = 0;
diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c
index ef97b71c8f7d..f32b4628e991 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -6429,6 +6429,7 @@ static int qib_init_7322_variables(struct qib_devdata *dd)
         unsigned features, pidx, sbufcnt;
         int ret, mtu;
         u32 sbufs, updthresh;
+        resource_size_t vl15off;
 
         /* pport structs are contiguous, allocated after devdata */
         ppd = (struct qib_pportdata *)(dd + 1);
@@ -6677,29 +6678,27 @@ static int qib_init_7322_variables(struct qib_devdata *dd)
         qib_7322_config_ctxts(dd);
         qib_set_ctxtcnt(dd);
 
-        if (qib_wc_pat) {
-                resource_size_t vl15off;
-                /*
-                 * We do not set WC on the VL15 buffers to avoid
-                 * a rare problem with unaligned writes from
-                 * interrupt-flushed store buffers, so we need
-                 * to map those separately here.  We can't solve
-                 * this for the rarely used mtrr case.
-                 */
-                ret = init_chip_wc_pat(dd, 0);
-                if (ret)
-                        goto bail;
+        /*
+         * We do not set WC on the VL15 buffers to avoid
+         * a rare problem with unaligned writes from
+         * interrupt-flushed store buffers, so we need
+         * to map those separately here.  We can't solve
+         * this for the rarely used mtrr case.
+         */
+        ret = init_chip_wc_pat(dd, 0);
+        if (ret)
+                goto bail;
 
-                /* vl15 buffers start just after the 4k buffers */
-                vl15off = dd->physaddr + (dd->piobufbase >> 32) +
-                        dd->piobcnt4k * dd->align4k;
-                dd->piovl15base = ioremap_nocache(vl15off,
-                                                  NUM_VL15_BUFS * dd->align4k);
-                if (!dd->piovl15base) {
-                        ret = -ENOMEM;
-                        goto bail;
-                }
+        /* vl15 buffers start just after the 4k buffers */
+        vl15off = dd->physaddr + (dd->piobufbase >> 32) +
+                  dd->piobcnt4k * dd->align4k;
+        dd->piovl15base = ioremap_nocache(vl15off,
+                                          NUM_VL15_BUFS * dd->align4k);
+        if (!dd->piovl15base) {
+                ret = -ENOMEM;
+                goto bail;
         }
+
         qib_7322_set_baseaddrs(dd); /* set chip access pointers now */
 
         ret = 0;
diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c
index 2ee36953e234..7e00470adc30 100644
--- a/drivers/infiniband/hw/qib/qib_init.c
+++ b/drivers/infiniband/hw/qib/qib_init.c
@@ -91,15 +91,6 @@ MODULE_PARM_DESC(krcvqs, "number of kernel receive queues per IB port");
 unsigned qib_cc_table_size;
 module_param_named(cc_table_size, qib_cc_table_size, uint, S_IRUGO);
 MODULE_PARM_DESC(cc_table_size, "Congestion control table entries 0 (CCA disabled - default), min = 128, max = 1984");
-/*
- * qib_wc_pat parameter:
- *      0 is WC via MTRR
- *      1 is WC via PAT
- *      If PAT initialization fails, code reverts back to MTRR
- */
-unsigned qib_wc_pat = 1; /* default (1) is to use PAT, not MTRR */
-module_param_named(wc_pat, qib_wc_pat, uint, S_IRUGO);
-MODULE_PARM_DESC(wc_pat, "enable write-combining via PAT mechanism");
 
 static void verify_interrupt(unsigned long);
 
@@ -1377,8 +1368,7 @@ static void cleanup_device_data(struct qib_devdata *dd)
                 spin_unlock(&dd->pport[pidx].cc_shadow_lock);
         }
 
-        if (!qib_wc_pat)
-                qib_disable_wc(dd);
+        qib_disable_wc(dd);
 
         if (dd->pioavailregs_dma) {
                 dma_free_coherent(&dd->pcidev->dev, PAGE_SIZE,
@@ -1547,14 +1537,12 @@ static int qib_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                 goto bail;
         }
 
-        if (!qib_wc_pat) {
-                ret = qib_enable_wc(dd);
-                if (ret) {
-                        qib_dev_err(dd,
-                                "Write combining not enabled (err %d): performance may be poor\n",
-                                -ret);
-                        ret = 0;
-                }
+        ret = qib_enable_wc(dd);
+        if (ret) {
+                qib_dev_err(dd,
+                        "Write combining not enabled (err %d): performance may be poor\n",
+                        -ret);
+                ret = 0;
         }
 
         qib_verify_pioperf(dd);
diff --git a/drivers/infiniband/hw/qib/qib_wc_x86_64.c b/drivers/infiniband/hw/qib/qib_wc_x86_64.c
index 81b225f2300a..6d61ef98721c 100644
--- a/drivers/infiniband/hw/qib/qib_wc_x86_64.c
+++ b/drivers/infiniband/hw/qib/qib_wc_x86_64.c
@@ -116,21 +116,9 @@ int qib_enable_wc(struct qib_devdata *dd)
         }
 
         if (!ret) {
-                int cookie;
-
-                cookie = mtrr_add(pioaddr, piolen, MTRR_TYPE_WRCOMB, 0);
-                if (cookie < 0) {
-                        {
-                                qib_devinfo(dd->pcidev,
-                                         "mtrr_add()  WC for PIO bufs failed (%d)\n",
-                                         cookie);
-                                ret = -EINVAL;
-                        }
-                } else {
-                        dd->wc_cookie = cookie;
-                        dd->wc_base = (unsigned long) pioaddr;
-                        dd->wc_len = (unsigned long) piolen;
-                }
+                dd->wc_cookie = arch_phys_wc_add(pioaddr, piolen);
+                if (dd->wc_cookie < 0)
+                        ret = -EINVAL;
         }
 
         return ret;
@@ -142,18 +130,7 @@ int qib_enable_wc(struct qib_devdata *dd)
  */
 void qib_disable_wc(struct qib_devdata *dd)
 {
-        if (dd->wc_cookie) {
-                int r;
-
-                r = mtrr_del(dd->wc_cookie, dd->wc_base,
-                             dd->wc_len);
-                if (r < 0)
-                        qib_devinfo(dd->pcidev,
-                                 "mtrr_del(%lx, %lx, %lx) failed: %d\n",
-                                 dd->wc_cookie, dd->wc_base,
-                                 dd->wc_len, r);
-                dd->wc_cookie = 0; /* even on failure */
-        }
+        arch_phys_wc_del(dd->wc_cookie);
 }
 
 /**
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 56959adb6c7d..cf32a778e7d0 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -386,8 +386,8 @@ static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_i
                                            rx->rx_ring[i].mapping,
                                            GFP_KERNEL)) {
                         ipoib_warn(priv, "failed to allocate receive buffer %d\n", i);
-                                ret = -ENOMEM;
-                                goto err_count;
+                        ret = -ENOMEM;
+                        goto err_count;
                 }
                 ret = ipoib_cm_post_receive_nonsrq(dev, rx, &t->wr, t->sge, i);
                 if (ret) {
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index a1cbba9056fd..3465faf1809e 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -266,6 +266,7 @@ static void put_pasid_state(struct pasid_state *pasid_state)
 
 static void put_pasid_state_wait(struct pasid_state *pasid_state)
 {
+        atomic_dec(&pasid_state->count);
         wait_event(pasid_state->wq, !atomic_read(&pasid_state->count));
         free_pasid_state(pasid_state);
 }
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 9f7e1d34a32b..66a803b9dd3a 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -224,14 +224,7 @@
 #define RESUME_TERMINATE                (1 << 0)
 
 #define TTBCR2_SEP_SHIFT                15
-#define TTBCR2_SEP_MASK                 0x7
-
-#define TTBCR2_ADDR_32                  0
-#define TTBCR2_ADDR_36                  1
-#define TTBCR2_ADDR_40                  2
-#define TTBCR2_ADDR_42                  3
-#define TTBCR2_ADDR_44                  4
-#define TTBCR2_ADDR_48                  5
+#define TTBCR2_SEP_UPSTREAM             (0x7 << TTBCR2_SEP_SHIFT)
 
 #define TTBRn_HI_ASID_SHIFT            16
 
@@ -793,26 +786,7 @@ static void arm_smmu_init_context_bank(struct arm_smmu_domain *smmu_domain,
                 writel_relaxed(reg, cb_base + ARM_SMMU_CB_TTBCR);
                 if (smmu->version > ARM_SMMU_V1) {
                         reg = pgtbl_cfg->arm_lpae_s1_cfg.tcr >> 32;
-                        switch (smmu->va_size) {
-                        case 32:
-                                reg |= (TTBCR2_ADDR_32 << TTBCR2_SEP_SHIFT);
-                                break;
-                        case 36:
-                                reg |= (TTBCR2_ADDR_36 << TTBCR2_SEP_SHIFT);
-                                break;
-                        case 40:
-                                reg |= (TTBCR2_ADDR_40 << TTBCR2_SEP_SHIFT);
-                                break;
-                        case 42:
-                                reg |= (TTBCR2_ADDR_42 << TTBCR2_SEP_SHIFT);
-                                break;
-                        case 44:
-                                reg |= (TTBCR2_ADDR_44 << TTBCR2_SEP_SHIFT);
-                                break;
-                        case 48:
-                                reg |= (TTBCR2_ADDR_48 << TTBCR2_SEP_SHIFT);
-                                break;
-                        }
+                        reg |= TTBCR2_SEP_UPSTREAM;
                         writel_relaxed(reg, cb_base + ARM_SMMU_CB_TTBCR2);
                 }
         } else {
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index 4015560bf486..cab214544237 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1004,20 +1004,18 @@ static int rk_iommu_remove(struct platform_device *pdev)
         return 0;
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id rk_iommu_dt_ids[] = {
         { .compatible = "rockchip,iommu" },
         { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, rk_iommu_dt_ids);
-#endif
 
 static struct platform_driver rk_iommu_driver = {
         .probe = rk_iommu_probe,
         .remove = rk_iommu_remove,
         .driver = {
                    .name = "rk_iommu",
-                   .of_match_table = of_match_ptr(rk_iommu_dt_ids),
+                   .of_match_table = rk_iommu_dt_ids,
         },
 };
 
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 7b315e385ba3..01999d74bd3a 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -82,19 +82,6 @@ static DEFINE_RAW_SPINLOCK(irq_controller_lock);
 #define NR_GIC_CPU_IF 8
 static u8 gic_cpu_map[NR_GIC_CPU_IF] __read_mostly;
 
-/*
- * Supported arch specific GIC irq extension.
- * Default make them NULL.
- */
-struct irq_chip gic_arch_extn = {
-        .irq_eoi        = NULL,
-        .irq_mask       = NULL,
-        .irq_unmask     = NULL,
-        .irq_retrigger  = NULL,
-        .irq_set_type   = NULL,
-        .irq_set_wake   = NULL,
-};
-
 #ifndef MAX_GIC_NR
 #define MAX_GIC_NR      1
 #endif
@@ -167,34 +154,16 @@ static int gic_peek_irq(struct irq_data *d, u32 offset)
 
 static void gic_mask_irq(struct irq_data *d)
 {
-        unsigned long flags;
-
-        raw_spin_lock_irqsave(&irq_controller_lock, flags);
         gic_poke_irq(d, GIC_DIST_ENABLE_CLEAR);
-        if (gic_arch_extn.irq_mask)
-                gic_arch_extn.irq_mask(d);
-        raw_spin_unlock_irqrestore(&irq_controller_lock, flags);
 }
 
 static void gic_unmask_irq(struct irq_data *d)
 {
-        unsigned long flags;
-
-        raw_spin_lock_irqsave(&irq_controller_lock, flags);
-        if (gic_arch_extn.irq_unmask)
-                gic_arch_extn.irq_unmask(d);
         gic_poke_irq(d, GIC_DIST_ENABLE_SET);
-        raw_spin_unlock_irqrestore(&irq_controller_lock, flags);
 }
 
 static void gic_eoi_irq(struct irq_data *d)
 {
-        if (gic_arch_extn.irq_eoi) {
-                raw_spin_lock(&irq_controller_lock);
-                gic_arch_extn.irq_eoi(d);
-                raw_spin_unlock(&irq_controller_lock);
-        }
-
         writel_relaxed(gic_irq(d), gic_cpu_base(d) + GIC_CPU_EOI);
 }
 
@@ -251,8 +220,6 @@ static int gic_set_type(struct irq_data *d, unsigned int type)
 {
         void __iomem *base = gic_dist_base(d);
         unsigned int gicirq = gic_irq(d);
-        unsigned long flags;
-        int ret;
 
         /* Interrupt configuration for SGIs can't be changed */
         if (gicirq < 16)
@@ -263,25 +230,7 @@ static int gic_set_type(struct irq_data *d, unsigned int type)
                             type != IRQ_TYPE_EDGE_RISING)
                 return -EINVAL;
 
-        raw_spin_lock_irqsave(&irq_controller_lock, flags);
-
-        if (gic_arch_extn.irq_set_type)
-                gic_arch_extn.irq_set_type(d, type);
-
-        ret = gic_configure_irq(gicirq, type, base, NULL);
-
-        raw_spin_unlock_irqrestore(&irq_controller_lock, flags);
-
-        return ret;
-}
-
-static int gic_retrigger(struct irq_data *d)
-{
-        if (gic_arch_extn.irq_retrigger)
-                return gic_arch_extn.irq_retrigger(d);
-
-        /* the genirq layer expects 0 if we can't retrigger in hardware */
-        return 0;
+        return gic_configure_irq(gicirq, type, base, NULL);
 }
 
 #ifdef CONFIG_SMP
@@ -312,21 +261,6 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 }
 #endif
 
-#ifdef CONFIG_PM
-static int gic_set_wake(struct irq_data *d, unsigned int on)
-{
-        int ret = -ENXIO;
-
-        if (gic_arch_extn.irq_set_wake)
-                ret = gic_arch_extn.irq_set_wake(d, on);
-
-        return ret;
-}
-
-#else
-#define gic_set_wake    NULL
-#endif
-
 static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
 {
         u32 irqstat, irqnr;
@@ -385,11 +319,9 @@ static struct irq_chip gic_chip = {
         .irq_unmask             = gic_unmask_irq,
         .irq_eoi                = gic_eoi_irq,
         .irq_set_type           = gic_set_type,
-        .irq_retrigger          = gic_retrigger,
 #ifdef CONFIG_SMP
         .irq_set_affinity       = gic_set_affinity,
 #endif
-        .irq_set_wake           = gic_set_wake,
         .irq_get_irqchip_state  = gic_irq_get_irqchip_state,
         .irq_set_irqchip_state  = gic_irq_set_irqchip_state,
 };
@@ -1055,7 +987,6 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
                 set_handle_irq(gic_handle_irq);
         }
 
-        gic_chip.flags |= gic_arch_extn.flags;
         gic_dist_init(gic);
         gic_cpu_init(gic);
         gic_pm_init(gic);
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 9eeea196328a..5503e43e5f28 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -925,10 +925,11 @@ static int crypt_convert(struct crypt_config *cc,
 
                 switch (r) {
                 /* async */
-                case -EINPROGRESS:
                 case -EBUSY:
                         wait_for_completion(&ctx->restart);
                         reinit_completion(&ctx->restart);
+                        /* fall through*/
+                case -EINPROGRESS:
                         ctx->req = NULL;
                         ctx->cc_sector++;
                         continue;
@@ -1345,8 +1346,10 @@ static void kcryptd_async_done(struct crypto_async_request *async_req,
         struct dm_crypt_io *io = container_of(ctx, struct dm_crypt_io, ctx);
         struct crypt_config *cc = io->cc;
 
-        if (error == -EINPROGRESS)
+        if (error == -EINPROGRESS) {
+                complete(&ctx->restart);
                 return;
+        }
 
         if (!error && cc->iv_gen_ops && cc->iv_gen_ops->post)
                 error = cc->iv_gen_ops->post(cc, iv_of_dmreq(cc, dmreq), dmreq);
@@ -1357,15 +1360,12 @@ static void kcryptd_async_done(struct crypto_async_request *async_req,
         crypt_free_req(cc, req_of_dmreq(cc, dmreq), io->base_bio);
 
         if (!atomic_dec_and_test(&ctx->cc_pending))
-                goto done;
+                return;
 
         if (bio_data_dir(io->base_bio) == READ)
                 kcryptd_crypt_read_done(io);
         else
                 kcryptd_crypt_write_io_submit(io, 1);
-done:
-        if (!completion_done(&ctx->restart))
-                complete(&ctx->restart);
 }
 
 static void kcryptd_crypt(struct work_struct *work)
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index c8a18e4ee9dc..720ceeb7fa9b 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1298,21 +1298,22 @@ static int table_load(struct dm_ioctl *param, size_t param_size)
                 goto err_unlock_md_type;
         }
 
-        if (dm_get_md_type(md) == DM_TYPE_NONE)
+        if (dm_get_md_type(md) == DM_TYPE_NONE) {
                 /* Initial table load: acquire type of table. */
                 dm_set_md_type(md, dm_table_get_type(t));
-        else if (dm_get_md_type(md) != dm_table_get_type(t)) {
+
+                /* setup md->queue to reflect md's type (may block) */
+                r = dm_setup_md_queue(md);
+                if (r) {
+                        DMWARN("unable to set up device queue for new table.");
+                        goto err_unlock_md_type;
+                }
+        } else if (dm_get_md_type(md) != dm_table_get_type(t)) {
                 DMWARN("can't change device type after initial table load.");
                 r = -EINVAL;
                 goto err_unlock_md_type;
         }
 
-        /* setup md->queue to reflect md's type (may block) */
-        r = dm_setup_md_queue(md);
-        if (r) {
-                DMWARN("unable to set up device queue for new table.");
-                goto err_unlock_md_type;
-        }
         dm_unlock_md_type(md);
 
         /* stage inactive table */
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index f8c7ca3e8947..a930b72314ac 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1082,18 +1082,26 @@ static void rq_completed(struct mapped_device *md, int rw, bool run_queue)
         dm_put(md);
 }
 
-static void free_rq_clone(struct request *clone)
+static void free_rq_clone(struct request *clone, bool must_be_mapped)
 {
         struct dm_rq_target_io *tio = clone->end_io_data;
         struct mapped_device *md = tio->md;
 
+        WARN_ON_ONCE(must_be_mapped && !clone->q);
+
         blk_rq_unprep_clone(clone);
 
-        if (clone->q->mq_ops)
+        if (md->type == DM_TYPE_MQ_REQUEST_BASED)
+                /* stacked on blk-mq queue(s) */
                 tio->ti->type->release_clone_rq(clone);
         else if (!md->queue->mq_ops)
                 /* request_fn queue stacked on request_fn queue(s) */
                 free_clone_request(md, clone);
+        /*
+         * NOTE: for the blk-mq queue stacked on request_fn queue(s) case:
+         * no need to call free_clone_request() because we leverage blk-mq by
+         * allocating the clone at the end of the blk-mq pdu (see: clone_rq)
+         */
 
         if (!md->queue->mq_ops)
                 free_rq_tio(tio);
@@ -1124,7 +1132,7 @@ static void dm_end_request(struct request *clone, int error)
                         rq->sense_len = clone->sense_len;
         }
 
-        free_rq_clone(clone);
+        free_rq_clone(clone, true);
         if (!rq->q->mq_ops)
                 blk_end_request_all(rq, error);
         else
@@ -1143,7 +1151,7 @@ static void dm_unprep_request(struct request *rq)
         }
 
         if (clone)
-                free_rq_clone(clone);
+                free_rq_clone(clone, false);
 }
 
 /*
@@ -2662,9 +2670,6 @@ static int dm_init_request_based_queue(struct mapped_device *md)
 {
         struct request_queue *q = NULL;
 
-        if (md->queue->elevator)
-                return 0;
-
         /* Fully initialize the queue */
         q = blk_init_allocated_queue(md->queue, dm_request_fn, NULL);
         if (!q)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index d4f31e195e26..593a02476c78 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -4818,12 +4818,12 @@ static void md_free(struct kobject *ko)
         if (mddev->sysfs_state)
                 sysfs_put(mddev->sysfs_state);
 
+        if (mddev->queue)
+                blk_cleanup_queue(mddev->queue);
         if (mddev->gendisk) {
                 del_gendisk(mddev->gendisk);
                 put_disk(mddev->gendisk);
         }
-        if (mddev->queue)
-                blk_cleanup_queue(mddev->queue);
 
         kfree(mddev);
 }
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 2cb59a641cd2..6a68ef5246d4 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -188,8 +188,9 @@ static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf)
                 }
                 dev[j] = rdev1;
 
-                disk_stack_limits(mddev->gendisk, rdev1->bdev,
-                                  rdev1->data_offset << 9);
+                if (mddev->queue)
+                        disk_stack_limits(mddev->gendisk, rdev1->bdev,
+                                          rdev1->data_offset << 9);
 
                 if (rdev1->bdev->bd_disk->queue->merge_bvec_fn)
                         conf->has_merge_bvec = 1;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 77dfd720aaa0..1ba97fdc6df1 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1078,9 +1078,6 @@ again:
                         pr_debug("skip op %ld on disc %d for sector %llu\n",
                                 bi->bi_rw, i, (unsigned long long)sh->sector);
                         clear_bit(R5_LOCKED, &sh->dev[i].flags);
-                        if (sh->batch_head)
-                                set_bit(STRIPE_BATCH_ERR,
-                                        &sh->batch_head->state);
                         set_bit(STRIPE_HANDLE, &sh->state);
                 }
 
@@ -1971,17 +1968,30 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request)
         put_cpu();
 }
 
+static struct stripe_head *alloc_stripe(struct kmem_cache *sc, gfp_t gfp)
+{
+        struct stripe_head *sh;
+
+        sh = kmem_cache_zalloc(sc, gfp);
+        if (sh) {
+                spin_lock_init(&sh->stripe_lock);
+                spin_lock_init(&sh->batch_lock);
+                INIT_LIST_HEAD(&sh->batch_list);
+                INIT_LIST_HEAD(&sh->lru);
+                atomic_set(&sh->count, 1);
+        }
+        return sh;
+}
 static int grow_one_stripe(struct r5conf *conf, gfp_t gfp)
 {
         struct stripe_head *sh;
-        sh = kmem_cache_zalloc(conf->slab_cache, gfp);
+
+        sh = alloc_stripe(conf->slab_cache, gfp);
         if (!sh)
                 return 0;
 
         sh->raid_conf = conf;
 
-        spin_lock_init(&sh->stripe_lock);
-
         if (grow_buffers(sh, gfp)) {
                 shrink_buffers(sh);
                 kmem_cache_free(conf->slab_cache, sh);
@@ -1990,13 +2000,8 @@ static int grow_one_stripe(struct r5conf *conf, gfp_t gfp)
         sh->hash_lock_index =
                 conf->max_nr_stripes % NR_STRIPE_HASH_LOCKS;
         /* we just created an active stripe so... */
-        atomic_set(&sh->count, 1);
         atomic_inc(&conf->active_stripes);
-        INIT_LIST_HEAD(&sh->lru);
 
-        spin_lock_init(&sh->batch_lock);
-        INIT_LIST_HEAD(&sh->batch_list);
-        sh->batch_head = NULL;
         release_stripe(sh);
         conf->max_nr_stripes++;
         return 1;
@@ -2060,6 +2065,35 @@ static struct flex_array *scribble_alloc(int num, int cnt, gfp_t flags)
         return ret;
 }
 
+static int resize_chunks(struct r5conf *conf, int new_disks, int new_sectors)
+{
+        unsigned long cpu;
+        int err = 0;
+
+        mddev_suspend(conf->mddev);
+        get_online_cpus();
+        for_each_present_cpu(cpu) {
+                struct raid5_percpu *percpu;
+                struct flex_array *scribble;
+
+                percpu = per_cpu_ptr(conf->percpu, cpu);
+                scribble = scribble_alloc(new_disks,
+                                          new_sectors / STRIPE_SECTORS,
+                                          GFP_NOIO);
+
+                if (scribble) {
+                        flex_array_free(percpu->scribble);
+                        percpu->scribble = scribble;
+                } else {
+                        err = -ENOMEM;
+                        break;
+                }
+        }
+        put_online_cpus();
+        mddev_resume(conf->mddev);
+        return err;
+}
+
 static int resize_stripes(struct r5conf *conf, int newsize)
 {
         /* Make all the stripes able to hold 'newsize' devices.
@@ -2088,7 +2122,6 @@ static int resize_stripes(struct r5conf *conf, int newsize)
         struct stripe_head *osh, *nsh;
         LIST_HEAD(newstripes);
         struct disk_info *ndisks;
-        unsigned long cpu;
         int err;
         struct kmem_cache *sc;
         int i;
@@ -2109,13 +2142,11 @@ static int resize_stripes(struct r5conf *conf, int newsize)
                 return -ENOMEM;
 
         for (i = conf->max_nr_stripes; i; i--) {
-                nsh = kmem_cache_zalloc(sc, GFP_KERNEL);
+                nsh = alloc_stripe(sc, GFP_KERNEL);
                 if (!nsh)
                         break;
 
                 nsh->raid_conf = conf;
-                spin_lock_init(&nsh->stripe_lock);
-
                 list_add(&nsh->lru, &newstripes);
         }
         if (i) {
@@ -2142,13 +2173,11 @@ static int resize_stripes(struct r5conf *conf, int newsize)
                                     lock_device_hash_lock(conf, hash));
                 osh = get_free_stripe(conf, hash);
                 unlock_device_hash_lock(conf, hash);
-                atomic_set(&nsh->count, 1);
+
                 for(i=0; i<conf->pool_size; i++) {
                         nsh->dev[i].page = osh->dev[i].page;
                         nsh->dev[i].orig_page = osh->dev[i].page;
                 }
-                for( ; i<newsize; i++)
-                        nsh->dev[i].page = NULL;
                 nsh->hash_lock_index = hash;
                 kmem_cache_free(conf->slab_cache, osh);
                 cnt++;
@@ -2174,25 +2203,6 @@ static int resize_stripes(struct r5conf *conf, int newsize)
         } else
                 err = -ENOMEM;
 
-        get_online_cpus();
-        for_each_present_cpu(cpu) {
-                struct raid5_percpu *percpu;
-                struct flex_array *scribble;
-
-                percpu = per_cpu_ptr(conf->percpu, cpu);
-                scribble = scribble_alloc(newsize, conf->chunk_sectors /
-                        STRIPE_SECTORS, GFP_NOIO);
-
-                if (scribble) {
-                        flex_array_free(percpu->scribble);
-                        percpu->scribble = scribble;
-                } else {
-                        err = -ENOMEM;
-                        break;
-                }
-        }
-        put_online_cpus();
-
         /* Step 4, return new stripes to service */
         while(!list_empty(&newstripes)) {
                 nsh = list_entry(newstripes.next, struct stripe_head, lru);
@@ -2212,7 +2222,8 @@ static int resize_stripes(struct r5conf *conf, int newsize)
 
         conf->slab_cache = sc;
         conf->active_name = 1-conf->active_name;
-        conf->pool_size = newsize;
+        if (!err)
+                conf->pool_size = newsize;
         return err;
 }
 
@@ -2434,7 +2445,7 @@ static void raid5_end_write_request(struct bio *bi, int error)
         }
         rdev_dec_pending(rdev, conf->mddev);
 
-        if (sh->batch_head && !uptodate)
+        if (sh->batch_head && !uptodate && !replacement)
                 set_bit(STRIPE_BATCH_ERR, &sh->batch_head->state);
 
         if (!test_and_clear_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags))
@@ -3278,7 +3289,9 @@ static int need_this_block(struct stripe_head *sh, struct stripe_head_state *s,
                 /* reconstruct-write isn't being forced */
                 return 0;
         for (i = 0; i < s->failed; i++) {
-                if (!test_bit(R5_UPTODATE, &fdev[i]->flags) &&
+                if (s->failed_num[i] != sh->pd_idx &&
+                    s->failed_num[i] != sh->qd_idx &&
+                    !test_bit(R5_UPTODATE, &fdev[i]->flags) &&
                     !test_bit(R5_OVERWRITE, &fdev[i]->flags))
                         return 1;
         }
@@ -3298,6 +3311,7 @@ static int fetch_block(struct stripe_head *sh, struct stripe_head_state *s,
                  */
                 BUG_ON(test_bit(R5_Wantcompute, &dev->flags));
                 BUG_ON(test_bit(R5_Wantread, &dev->flags));
+                BUG_ON(sh->batch_head);
                 if ((s->uptodate == disks - 1) &&
                     (s->failed && (disk_idx == s->failed_num[0] ||
                                    disk_idx == s->failed_num[1]))) {
@@ -3366,7 +3380,6 @@ static void handle_stripe_fill(struct stripe_head *sh,
 {
         int i;
 
-        BUG_ON(sh->batch_head);
         /* look for blocks to read/compute, skip this if a compute
          * is already in flight, or if the stripe contents are in the
          * midst of changing due to a write
@@ -4198,15 +4211,9 @@ static void check_break_stripe_batch_list(struct stripe_head *sh)
                 return;
 
         head_sh = sh;
-        do {
-                sh = list_first_entry(&sh->batch_list,
-                                      struct stripe_head, batch_list);
-                BUG_ON(sh == head_sh);
-        } while (!test_bit(STRIPE_DEGRADED, &sh->state));
 
-        while (sh != head_sh) {
-                next = list_first_entry(&sh->batch_list,
-                                        struct stripe_head, batch_list);
+        list_for_each_entry_safe(sh, next, &head_sh->batch_list, batch_list) {
+
                 list_del_init(&sh->batch_list);
 
                 set_mask_bits(&sh->state, ~STRIPE_EXPAND_SYNC_FLAG,
@@ -4226,8 +4233,6 @@ static void check_break_stripe_batch_list(struct stripe_head *sh)
 
                 set_bit(STRIPE_HANDLE, &sh->state);
                 release_stripe(sh);
-
-                sh = next;
         }
 }
 
@@ -6221,8 +6226,11 @@ static int alloc_scratch_buffer(struct r5conf *conf, struct raid5_percpu *percpu
                 percpu->spare_page = alloc_page(GFP_KERNEL);
         if (!percpu->scribble)
                 percpu->scribble = scribble_alloc(max(conf->raid_disks,
-                        conf->previous_raid_disks), conf->chunk_sectors /
-                        STRIPE_SECTORS, GFP_KERNEL);
+                                                      conf->previous_raid_disks),
+                                                  max(conf->chunk_sectors,
+                                                      conf->prev_chunk_sectors)
+                                                   / STRIPE_SECTORS,
+                                                  GFP_KERNEL);
 
         if (!percpu->scribble || (conf->level == 6 && !percpu->spare_page)) {
                 free_scratch_buffer(conf, percpu);
@@ -7198,6 +7206,15 @@ static int check_reshape(struct mddev *mddev)
         if (!check_stripe_cache(mddev))
                 return -ENOSPC;
 
+        if (mddev->new_chunk_sectors > mddev->chunk_sectors ||
+            mddev->delta_disks > 0)
+                if (resize_chunks(conf,
+                                  conf->previous_raid_disks
+                                  + max(0, mddev->delta_disks),
+                                  max(mddev->new_chunk_sectors,
+                                      mddev->chunk_sectors)
+                            ) < 0)
+                        return -ENOMEM;
         return resize_stripes(conf, (conf->previous_raid_disks
                                      + mddev->delta_disks));
 }
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index 9c64b5d01c6a..110fd70c7326 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -116,8 +116,8 @@ static struct mcam_format_struct {
                 .planar         = false,
         },
         {
-                .desc           = "UYVY 4:2:2",
-                .pixelformat    = V4L2_PIX_FMT_UYVY,
+                .desc           = "YVYU 4:2:2",
+                .pixelformat    = V4L2_PIX_FMT_YVYU,
                 .mbus_code      = MEDIA_BUS_FMT_YUYV8_2X8,
                 .bpp            = 2,
                 .planar         = false,
@@ -748,7 +748,7 @@ static void mcam_ctlr_image(struct mcam_camera *cam)
 
         switch (fmt->pixelformat) {
         case V4L2_PIX_FMT_YUYV:
-        case V4L2_PIX_FMT_UYVY:
+        case V4L2_PIX_FMT_YVYU:
                 widthy = fmt->width * 2;
                 widthuv = 0;
                 break;
@@ -784,15 +784,15 @@ static void mcam_ctlr_image(struct mcam_camera *cam)
         case V4L2_PIX_FMT_YUV420:
         case V4L2_PIX_FMT_YVU420:
                 mcam_reg_write_mask(cam, REG_CTRL0,
-                        C0_DF_YUV | C0_YUV_420PL | C0_YUVE_YVYU, C0_DF_MASK);
+                        C0_DF_YUV | C0_YUV_420PL | C0_YUVE_VYUY, C0_DF_MASK);
                 break;
         case V4L2_PIX_FMT_YUYV:
                 mcam_reg_write_mask(cam, REG_CTRL0,
-                        C0_DF_YUV | C0_YUV_PACKED | C0_YUVE_UYVY, C0_DF_MASK);
+                        C0_DF_YUV | C0_YUV_PACKED | C0_YUVE_NOSWAP, C0_DF_MASK);
                 break;
-        case V4L2_PIX_FMT_UYVY:
+        case V4L2_PIX_FMT_YVYU:
                 mcam_reg_write_mask(cam, REG_CTRL0,
-                        C0_DF_YUV | C0_YUV_PACKED | C0_YUVE_YUYV, C0_DF_MASK);
+                        C0_DF_YUV | C0_YUV_PACKED | C0_YUVE_SWAP24, C0_DF_MASK);
                 break;
         case V4L2_PIX_FMT_JPEG:
                 mcam_reg_write_mask(cam, REG_CTRL0,
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.h b/drivers/media/platform/marvell-ccic/mcam-core.h
index aa0c6eac254a..7ffdf4dbaf8c 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.h
+++ b/drivers/media/platform/marvell-ccic/mcam-core.h
@@ -330,10 +330,10 @@ int mccic_resume(struct mcam_camera *cam);
 #define   C0_YUVE_YVYU    0x00010000    /* Y1CrY0Cb             */
 #define   C0_YUVE_VYUY    0x00020000    /* CrY1CbY0             */
 #define   C0_YUVE_UYVY    0x00030000    /* CbY1CrY0             */
-#define   C0_YUVE_XYUV    0x00000000    /* 420: .YUV            */
-#define   C0_YUVE_XYVU    0x00010000    /* 420: .YVU            */
-#define   C0_YUVE_XUVY    0x00020000    /* 420: .UVY            */
-#define   C0_YUVE_XVUY    0x00030000    /* 420: .VUY            */
+#define   C0_YUVE_NOSWAP  0x00000000    /* no bytes swapping    */
+#define   C0_YUVE_SWAP13  0x00010000    /* swap byte 1 and 3    */
+#define   C0_YUVE_SWAP24  0x00020000    /* swap byte 2 and 4    */
+#define   C0_YUVE_SWAP1324 0x00030000   /* swap bytes 1&3 and 2&4 */
 /* Bayer bits 18,19 if needed */
 #define   C0_EOF_VSYNC    0x00400000    /* Generate EOF by VSYNC */
 #define   C0_VEDGE_CTRL   0x00800000    /* Detect falling edge of VSYNC */
diff --git a/drivers/media/platform/soc_camera/rcar_vin.c b/drivers/media/platform/soc_camera/rcar_vin.c
index 9351f64dee7b..6460f8e1b07f 100644
--- a/drivers/media/platform/soc_camera/rcar_vin.c
+++ b/drivers/media/platform/soc_camera/rcar_vin.c
@@ -135,6 +135,8 @@
 #define VIN_MAX_WIDTH           2048
 #define VIN_MAX_HEIGHT          2048
 
+#define TIMEOUT_MS              100
+
 enum chip_id {
         RCAR_GEN2,
         RCAR_H1,
@@ -820,7 +822,10 @@ static void rcar_vin_wait_stop_streaming(struct rcar_vin_priv *priv)
                 if (priv->state == STOPPING) {
                         priv->request_to_stop = true;
                         spin_unlock_irq(&priv->lock);
-                        wait_for_completion(&priv->capture_stop);
+                        if (!wait_for_completion_timeout(
+                                        &priv->capture_stop,
+                                        msecs_to_jiffies(TIMEOUT_MS)))
+                                priv->state = STOPPED;
                         spin_lock_irq(&priv->lock);
                 }
         }
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 2c25271f8c41..60f7141a6b02 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -1029,6 +1029,18 @@ static inline void mmc_blk_reset_success(struct mmc_blk_data *md, int type)
         md->reset_done &= ~type;
 }
 
+int mmc_access_rpmb(struct mmc_queue *mq)
+{
+        struct mmc_blk_data *md = mq->data;
+        /*
+         * If this is a RPMB partition access, return ture
+         */
+        if (md && md->part_type == EXT_CSD_PART_CONFIG_ACC_RPMB)
+                return true;
+
+        return false;
+}
+
 static int mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
 {
         struct mmc_blk_data *md = mq->data;
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 236d194c2883..8efa3684aef8 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -38,7 +38,7 @@ static int mmc_prep_request(struct request_queue *q, struct request *req)
                 return BLKPREP_KILL;
         }
 
-        if (mq && mmc_card_removed(mq->card))
+        if (mq && (mmc_card_removed(mq->card) || mmc_access_rpmb(mq)))
                 return BLKPREP_KILL;
 
         req->cmd_flags |= REQ_DONTPREP;
diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h
index 5752d50049a3..99e6521e6169 100644
--- a/drivers/mmc/card/queue.h
+++ b/drivers/mmc/card/queue.h
@@ -73,4 +73,6 @@ extern void mmc_queue_bounce_post(struct mmc_queue_req *);
 extern int mmc_packed_init(struct mmc_queue *, struct mmc_card *);
 extern void mmc_packed_clean(struct mmc_queue *);
 
+extern int mmc_access_rpmb(struct mmc_queue *);
+
 #endif
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index c296bc098fe2..92e7671426eb 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2651,6 +2651,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
         switch (mode) {
         case PM_HIBERNATION_PREPARE:
         case PM_SUSPEND_PREPARE:
+        case PM_RESTORE_PREPARE:
                 spin_lock_irqsave(&host->lock, flags);
                 host->rescan_disable = 1;
                 spin_unlock_irqrestore(&host->lock, flags);
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 38b29265cc7c..5f5adafb253a 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -589,9 +589,11 @@ static int dw_mci_idmac_init(struct dw_mci *host)
                 host->ring_size = PAGE_SIZE / sizeof(struct idmac_desc);
 
                 /* Forward link the descriptor list */
-                for (i = 0, p = host->sg_cpu; i < host->ring_size - 1; i++, p++)
+                for (i = 0, p = host->sg_cpu; i < host->ring_size - 1; i++, p++) {
                         p->des3 = cpu_to_le32(host->sg_dma +
                                         (sizeof(struct idmac_desc) * (i + 1)));
+                        p->des1 = 0;
+                }
 
                 /* Set the last descriptor as the end-of-ring descriptor */
                 p->des3 = cpu_to_le32(host->sg_dma);
@@ -1300,7 +1302,8 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
         int gpio_cd = mmc_gpio_get_cd(mmc);
 
         /* Use platform get_cd function, else try onboard card detect */
-        if (brd->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
+        if ((brd->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION) ||
+            (mmc->caps & MMC_CAP_NONREMOVABLE))
                 present = 1;
         else if (!IS_ERR_VALUE(gpio_cd))
                 present = gpio_cd;
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 2b6ef6bd5d5f..7eff087cf515 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1408,7 +1408,7 @@ static int sh_mmcif_probe(struct platform_device *pdev)
         host            = mmc_priv(mmc);
         host->mmc       = mmc;
         host->addr      = reg;
-        host->timeout   = msecs_to_jiffies(1000);
+        host->timeout   = msecs_to_jiffies(10000);
         host->ccs_enable = !pd || !pd->ccs_unsupported;
         host->clk_ctrl2_enable = pd && pd->clk_ctrl2_present;
 
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 78dde56ae6e6..d5fe5d5f490f 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -82,6 +82,8 @@
 #include <net/bond_3ad.h>
 #include <net/bond_alb.h>
 
+#include "bonding_priv.h"
+
 /*---------------------------- Module parameters ----------------------------*/
 
 /* monitor all links that often (in milliseconds). <=0 disables monitoring */
@@ -4542,6 +4544,8 @@ unsigned int bond_get_num_tx_queues(void)
 int bond_create(struct net *net, const char *name)
 {
         struct net_device *bond_dev;
+        struct bonding *bond;
+        struct alb_bond_info *bond_info;
         int res;
 
         rtnl_lock();
@@ -4555,6 +4559,14 @@ int bond_create(struct net *net, const char *name)
                 return -ENOMEM;
         }
 
+        /*
+         * Initialize rx_hashtbl_used_head to RLB_NULL_INDEX.
+         * It is set to 0 by default which is wrong.
+         */
+        bond = netdev_priv(bond_dev);
+        bond_info = &(BOND_ALB_INFO(bond));
+        bond_info->rx_hashtbl_used_head = RLB_NULL_INDEX;
+
         dev_net_set(bond_dev, net);
         bond_dev->rtnl_link_ops = &bond_link_ops;
 
diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c
index 62694cfc05b6..b20b35acb47d 100644
--- a/drivers/net/bonding/bond_procfs.c
+++ b/drivers/net/bonding/bond_procfs.c
@@ -4,6 +4,7 @@
 #include <net/netns/generic.h>
 #include <net/bonding.h>
 
+#include "bonding_priv.h"
 
 static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
         __acquires(RCU)
diff --git a/drivers/net/bonding/bonding_priv.h b/drivers/net/bonding/bonding_priv.h
new file mode 100644
index 000000000000..5a4d81a9437c
--- /dev/null
+++ b/drivers/net/bonding/bonding_priv.h
@@ -0,0 +1,25 @@
+/*
+ * Bond several ethernet interfaces into a Cisco, running 'Etherchannel'.
+ *
+ * Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes
+ * NCM: Network and Communications Management, Inc.
+ *
+ * BUT, I'm the one who modified it for ethernet, so:
+ * (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov
+ *
+ *      This software may be used and distributed according to the terms
+ *      of the GNU Public License, incorporated herein by reference.
+ *
+ */
+
+#ifndef _BONDING_PRIV_H
+#define _BONDING_PRIV_H
+
+#define DRV_VERSION     "3.7.1"
+#define DRV_RELDATE     "April 27, 2011"
+#define DRV_NAME        "bonding"
+#define DRV_DESCRIPTION "Ethernet Channel Bonding Driver"
+
+#define bond_version DRV_DESCRIPTION ": v" DRV_VERSION " (" DRV_RELDATE ")\n"
+
+#endif
diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
index 58808f651452..e8c96b8e86f4 100644
--- a/drivers/net/can/Kconfig
+++ b/drivers/net/can/Kconfig
@@ -112,7 +112,7 @@ config PCH_CAN
 
 config CAN_GRCAN
         tristate "Aeroflex Gaisler GRCAN and GRHCAN CAN devices"
-        depends on OF
+        depends on OF && HAS_DMA
         ---help---
           Say Y here if you want to use Aeroflex Gaisler GRCAN or GRHCAN.
           Note that the driver supports little endian, even though little
diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c
index 4643914859b2..8b17a9065b0b 100644
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -1102,7 +1102,7 @@ static void kvaser_usb_rx_can_err(const struct kvaser_usb_net_priv *priv,
 
         if (msg->u.rx_can_header.flag & (MSG_FLAG_ERROR_FRAME |
                                          MSG_FLAG_NERR)) {
-                netdev_err(priv->netdev, "Unknow error (flags: 0x%02x)\n",
+                netdev_err(priv->netdev, "Unknown error (flags: 0x%02x)\n",
                            msg->u.rx_can_header.flag);
 
                 stats->rx_errors++;
diff --git a/drivers/net/ethernet/8390/etherh.c b/drivers/net/ethernet/8390/etherh.c
index b36ee9e0d220..d686b9cac29f 100644
--- a/drivers/net/ethernet/8390/etherh.c
+++ b/drivers/net/ethernet/8390/etherh.c
@@ -523,7 +523,7 @@ static int etherh_addr(char *addr, struct expansion_card *ec)
         char *s;
         
         if (!ecard_readchunk(&cd, ec, 0xf5, 0)) {
-                printk(KERN_ERR "%s: unable to read podule description string\n",
+                printk(KERN_ERR "%s: unable to read module description string\n",
                        dev_name(&ec->dev));
                 goto no_addr;
         }
diff --git a/drivers/net/ethernet/altera/altera_msgdmahw.h b/drivers/net/ethernet/altera/altera_msgdmahw.h
index eba070f16782..89cd11d86642 100644
--- a/drivers/net/ethernet/altera/altera_msgdmahw.h
+++ b/drivers/net/ethernet/altera/altera_msgdmahw.h
@@ -58,15 +58,12 @@ struct msgdma_extended_desc {
 /* Tx buffer control flags
  */
 #define MSGDMA_DESC_CTL_TX_FIRST        (MSGDMA_DESC_CTL_GEN_SOP |      \
-                                         MSGDMA_DESC_CTL_TR_ERR_IRQ |   \
                                          MSGDMA_DESC_CTL_GO)
 
-#define MSGDMA_DESC_CTL_TX_MIDDLE       (MSGDMA_DESC_CTL_TR_ERR_IRQ |   \
-                                         MSGDMA_DESC_CTL_GO)
+#define MSGDMA_DESC_CTL_TX_MIDDLE       (MSGDMA_DESC_CTL_GO)
 
 #define MSGDMA_DESC_CTL_TX_LAST         (MSGDMA_DESC_CTL_GEN_EOP |      \
                                          MSGDMA_DESC_CTL_TR_COMP_IRQ |  \
-                                         MSGDMA_DESC_CTL_TR_ERR_IRQ |   \
                                          MSGDMA_DESC_CTL_GO)
 
 #define MSGDMA_DESC_CTL_TX_SINGLE       (MSGDMA_DESC_CTL_GEN_SOP |      \
diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index 90a76306ad0f..da48e66377b5 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -391,6 +391,12 @@ static int tse_rx(struct altera_tse_private *priv, int limit)
                                    "RCV pktstatus %08X pktlength %08X\n",
                                    pktstatus, pktlength);
 
+                /* DMA trasfer from TSE starts with 2 aditional bytes for
+                 * IP payload alignment. Status returned by get_rx_status()
+                 * contains DMA transfer length. Packet is 2 bytes shorter.
+                 */
+                pktlength -= 2;
+
                 count++;
                 next_entry = (++priv->rx_cons) % priv->rx_ring_size;
 
@@ -777,6 +783,8 @@ static int init_phy(struct net_device *dev)
         struct altera_tse_private *priv = netdev_priv(dev);
         struct phy_device *phydev;
         struct device_node *phynode;
+        bool fixed_link = false;
+        int rc = 0;
 
         /* Avoid init phy in case of no phy present */
         if (!priv->phy_iface)
@@ -789,13 +797,32 @@ static int init_phy(struct net_device *dev)
         phynode = of_parse_phandle(priv->device->of_node, "phy-handle", 0);
 
         if (!phynode) {
-                netdev_dbg(dev, "no phy-handle found\n");
-                if (!priv->mdio) {
-                        netdev_err(dev,
-                                   "No phy-handle nor local mdio specified\n");
-                        return -ENODEV;
+                /* check if a fixed-link is defined in device-tree */
+                if (of_phy_is_fixed_link(priv->device->of_node)) {
+                        rc = of_phy_register_fixed_link(priv->device->of_node);
+                        if (rc < 0) {
+                                netdev_err(dev, "cannot register fixed PHY\n");
+                                return rc;
+                        }
+
+                        /* In the case of a fixed PHY, the DT node associated
+                         * to the PHY is the Ethernet MAC DT node.
+                         */
+                        phynode = of_node_get(priv->device->of_node);
+                        fixed_link = true;
+
+                        netdev_dbg(dev, "fixed-link detected\n");
+                        phydev = of_phy_connect(dev, phynode,
+                                                &altera_tse_adjust_link,
+                                                0, priv->phy_iface);
+                } else {
+                        netdev_dbg(dev, "no phy-handle found\n");
+                        if (!priv->mdio) {
+                                netdev_err(dev, "No phy-handle nor local mdio specified\n");
+                                return -ENODEV;
+                        }
+                        phydev = connect_local_phy(dev);
                 }
-                phydev = connect_local_phy(dev);
         } else {
                 netdev_dbg(dev, "phy-handle found\n");
                 phydev = of_phy_connect(dev, phynode,
@@ -819,10 +846,10 @@ static int init_phy(struct net_device *dev)
         /* Broken HW is sometimes missing the pull-up resistor on the
          * MDIO line, which results in reads to non-existent devices returning
          * 0 rather than 0xffff. Catch this here and treat 0 as a non-existent
-         * device as well.
+         * device as well. If a fixed-link is used the phy_id is always 0.
          * Note: phydev->phy_id is the result of reading the UID PHY registers.
          */
-        if (phydev->phy_id == 0) {
+        if ((phydev->phy_id == 0) && !fixed_link) {
                 netdev_err(dev, "Bad PHY UID 0x%08x\n", phydev->phy_id);
                 phy_disconnect(phydev);
                 return -ENODEV;
diff --git a/drivers/net/ethernet/amd/Kconfig b/drivers/net/ethernet/amd/Kconfig
index c638c85f3954..089c269637b7 100644
--- a/drivers/net/ethernet/amd/Kconfig
+++ b/drivers/net/ethernet/amd/Kconfig
@@ -179,7 +179,7 @@ config SUNLANCE
 
 config AMD_XGBE
         tristate "AMD 10GbE Ethernet driver"
-        depends on (OF_NET || ACPI) && HAS_IOMEM
+        depends on (OF_NET || ACPI) && HAS_IOMEM && HAS_DMA
         select PHYLIB
         select AMD_XGBE_PHY
         select BITREVERSE
diff --git a/drivers/net/ethernet/arc/Kconfig b/drivers/net/ethernet/arc/Kconfig
index 8e262e2b39b6..dea29ee24da4 100644
--- a/drivers/net/ethernet/arc/Kconfig
+++ b/drivers/net/ethernet/arc/Kconfig
@@ -25,8 +25,7 @@ config ARC_EMAC_CORE
 config ARC_EMAC
         tristate "ARC EMAC support"
         select ARC_EMAC_CORE
-        depends on OF_IRQ
-        depends on OF_NET
+        depends on OF_IRQ && OF_NET && HAS_DMA
         ---help---
           On some legacy ARC (Synopsys) FPGA boards such as ARCAngel4/ML50x
           non-standard on-chip ethernet device ARC EMAC 10/100 is used.
@@ -35,7 +34,7 @@ config ARC_EMAC
 config EMAC_ROCKCHIP
         tristate "Rockchip EMAC support"
         select ARC_EMAC_CORE
-        depends on OF_IRQ && OF_NET && REGULATOR
+        depends on OF_IRQ && OF_NET && REGULATOR && HAS_DMA
         ---help---
           Support for Rockchip RK3066/RK3188 EMAC ethernet controllers.
           This selects Rockchip SoC glue layer support for the
diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_hw.h b/drivers/net/ethernet/atheros/atl1e/atl1e_hw.h
index 74df16aef793..88a6271de5bc 100644
--- a/drivers/net/ethernet/atheros/atl1e/atl1e_hw.h
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e_hw.h
@@ -129,7 +129,7 @@ s32 atl1e_restart_autoneg(struct atl1e_hw *hw);
 #define     TWSI_CTRL_LD_SLV_ADDR_SHIFT     8
 #define     TWSI_CTRL_SW_LDSTART            0x800
 #define     TWSI_CTRL_HW_LDSTART            0x1000
-#define     TWSI_CTRL_SMB_SLV_ADDR_MASK     0x0x7F
+#define     TWSI_CTRL_SMB_SLV_ADDR_MASK     0x7F
 #define     TWSI_CTRL_SMB_SLV_ADDR_SHIFT    15
 #define     TWSI_CTRL_LD_EXIST              0x400000
 #define     TWSI_CTRL_READ_FREQ_SEL_MASK    0x3
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.h b/drivers/net/ethernet/broadcom/bcmsysport.h
index 7e3d87a88c76..e2c043eabbf3 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.h
+++ b/drivers/net/ethernet/broadcom/bcmsysport.h
@@ -543,7 +543,7 @@ struct bcm_sysport_tx_counters {
         u32     jbr;            /* RO # of xmited jabber count*/
         u32     bytes;          /* RO # of xmited byte count */
         u32     pok;            /* RO # of xmited good pkt */
-        u32     uc;             /* RO (0x0x4f0)# of xmited unitcast pkt */
+        u32     uc;             /* RO (0x4f0) # of xmited unicast pkt */
 };
 
 struct bcm_sysport_mib {
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index de77d3a74abc..21e3c38c7c75 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -1260,7 +1260,7 @@ static int bgmac_poll(struct napi_struct *napi, int weight)
 
         /* Poll again if more events arrived in the meantime */
         if (bgmac_read(bgmac, BGMAC_INT_STATUS) & (BGMAC_IS_TX0 | BGMAC_IS_RX))
-                return handled;
+                return weight;
 
         if (handled < weight) {
                 napi_complete(napi);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 355d5fea5be9..a3b0f7a0c61e 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -521,6 +521,7 @@ struct bnx2x_fp_txdata {
 };
 
 enum bnx2x_tpa_mode_t {
+        TPA_MODE_DISABLED,
         TPA_MODE_LRO,
         TPA_MODE_GRO
 };
@@ -589,7 +590,6 @@ struct bnx2x_fastpath {
 
         /* TPA related */
         struct bnx2x_agg_info   *tpa_info;
-        u8                      disable_tpa;
 #ifdef BNX2X_STOP_ON_ERROR
         u64                     tpa_queue_used;
 #endif
@@ -1545,9 +1545,7 @@ struct bnx2x {
 #define USING_MSIX_FLAG                 (1 << 5)
 #define USING_MSI_FLAG                  (1 << 6)
 #define DISABLE_MSI_FLAG                (1 << 7)
-#define TPA_ENABLE_FLAG                 (1 << 8)
 #define NO_MCP_FLAG                     (1 << 9)
-#define GRO_ENABLE_FLAG                 (1 << 10)
 #define MF_FUNC_DIS                     (1 << 11)
 #define OWN_CNIC_IRQ                    (1 << 12)
 #define NO_ISCSI_OOO_FLAG               (1 << 13)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 2f63467bce46..a8bb8f664d3d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -947,10 +947,10 @@ static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget)
                         u16 frag_size, pages;
 #ifdef BNX2X_STOP_ON_ERROR
                         /* sanity check */
-                        if (fp->disable_tpa &&
+                        if (fp->mode == TPA_MODE_DISABLED &&
                             (CQE_TYPE_START(cqe_fp_type) ||
                              CQE_TYPE_STOP(cqe_fp_type)))
-                                BNX2X_ERR("START/STOP packet while disable_tpa type %x\n",
+                                BNX2X_ERR("START/STOP packet while TPA disabled, type %x\n",
                                           CQE_TYPE(cqe_fp_type));
 #endif
 
@@ -1396,7 +1396,7 @@ void bnx2x_init_rx_rings(struct bnx2x *bp)
                 DP(NETIF_MSG_IFUP,
                    "mtu %d  rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size);
 
-                if (!fp->disable_tpa) {
+                if (fp->mode != TPA_MODE_DISABLED) {
                         /* Fill the per-aggregation pool */
                         for (i = 0; i < MAX_AGG_QS(bp); i++) {
                                 struct bnx2x_agg_info *tpa_info =
@@ -1410,7 +1410,7 @@ void bnx2x_init_rx_rings(struct bnx2x *bp)
                                         BNX2X_ERR("Failed to allocate TPA skb pool for queue[%d] - disabling TPA on this queue!\n",
                                                   j);
                                         bnx2x_free_tpa_pool(bp, fp, i);
-                                        fp->disable_tpa = 1;
+                                        fp->mode = TPA_MODE_DISABLED;
                                         break;
                                 }
                                 dma_unmap_addr_set(first_buf, mapping, 0);
@@ -1438,7 +1438,7 @@ void bnx2x_init_rx_rings(struct bnx2x *bp)
                                                                 ring_prod);
                                         bnx2x_free_tpa_pool(bp, fp,
                                                             MAX_AGG_QS(bp));
-                                        fp->disable_tpa = 1;
+                                        fp->mode = TPA_MODE_DISABLED;
                                         ring_prod = 0;
                                         break;
                                 }
@@ -1560,7 +1560,7 @@ static void bnx2x_free_rx_skbs(struct bnx2x *bp)
 
                 bnx2x_free_rx_bds(fp);
 
-                if (!fp->disable_tpa)
+                if (fp->mode != TPA_MODE_DISABLED)
                         bnx2x_free_tpa_pool(bp, fp, MAX_AGG_QS(bp));
         }
 }
@@ -2477,17 +2477,19 @@ static void bnx2x_bz_fp(struct bnx2x *bp, int index)
         /* set the tpa flag for each queue. The tpa flag determines the queue
          * minimal size so it must be set prior to queue memory allocation
          */
-        fp->disable_tpa = !(bp->flags & TPA_ENABLE_FLAG ||
-                                  (bp->flags & GRO_ENABLE_FLAG &&
-                                   bnx2x_mtu_allows_gro(bp->dev->mtu)));
-        if (bp->flags & TPA_ENABLE_FLAG)
+        if (bp->dev->features & NETIF_F_LRO)
                 fp->mode = TPA_MODE_LRO;
-        else if (bp->flags & GRO_ENABLE_FLAG)
+        else if (bp->dev->features & NETIF_F_GRO &&
+                 bnx2x_mtu_allows_gro(bp->dev->mtu))
                 fp->mode = TPA_MODE_GRO;
+        else
+                fp->mode = TPA_MODE_DISABLED;
 
-        /* We don't want TPA on an FCoE L2 ring */
-        if (IS_FCOE_FP(fp))
-                fp->disable_tpa = 1;
+        /* We don't want TPA if it's disabled in bp
+         * or if this is an FCoE L2 ring.
+         */
+        if (bp->disable_tpa || IS_FCOE_FP(fp))
+                fp->mode = TPA_MODE_DISABLED;
 }
 
 int bnx2x_load_cnic(struct bnx2x *bp)
@@ -2608,7 +2610,7 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
         /*
          * Zero fastpath structures preserving invariants like napi, which are
          * allocated only once, fp index, max_cos, bp pointer.
-         * Also set fp->disable_tpa and txdata_ptr.
+         * Also set fp->mode and txdata_ptr.
          */
         DP(NETIF_MSG_IFUP, "num queues: %d", bp->num_queues);
         for_each_queue(bp, i)
@@ -3247,7 +3249,7 @@ int bnx2x_low_latency_recv(struct napi_struct *napi)
 
         if ((bp->state == BNX2X_STATE_CLOSED) ||
             (bp->state == BNX2X_STATE_ERROR) ||
-            (bp->flags & (TPA_ENABLE_FLAG | GRO_ENABLE_FLAG)))
+            (bp->dev->features & (NETIF_F_LRO | NETIF_F_GRO)))
                 return LL_FLUSH_FAILED;
 
         if (!bnx2x_fp_lock_poll(fp))
@@ -4543,7 +4545,7 @@ alloc_mem_err:
          * In these cases we disable the queue
          * Min size is different for OOO, TPA and non-TPA queues
          */
-        if (ring_size < (fp->disable_tpa ?
+        if (ring_size < (fp->mode == TPA_MODE_DISABLED ?
                                 MIN_RX_SIZE_NONTPA : MIN_RX_SIZE_TPA)) {
                         /* release memory allocated for this queue */
                         bnx2x_free_fp_mem_at(bp, index);
@@ -4809,66 +4811,71 @@ netdev_features_t bnx2x_fix_features(struct net_device *dev,
 {
         struct bnx2x *bp = netdev_priv(dev);
 
+        if (pci_num_vf(bp->pdev)) {
+                netdev_features_t changed = dev->features ^ features;
+
+                /* Revert the requested changes in features if they
+                 * would require internal reload of PF in bnx2x_set_features().
+                 */
+                if (!(features & NETIF_F_RXCSUM) && !bp->disable_tpa) {
+                        features &= ~NETIF_F_RXCSUM;
+                        features |= dev->features & NETIF_F_RXCSUM;
+                }
+
+                if (changed & NETIF_F_LOOPBACK) {
+                        features &= ~NETIF_F_LOOPBACK;
+                        features |= dev->features & NETIF_F_LOOPBACK;
+                }
+        }
+
         /* TPA requires Rx CSUM offloading */
         if (!(features & NETIF_F_RXCSUM)) {
                 features &= ~NETIF_F_LRO;
                 features &= ~NETIF_F_GRO;
         }
 
-        /* Note: do not disable SW GRO in kernel when HW GRO is off */
-        if (bp->disable_tpa)
-                features &= ~NETIF_F_LRO;
-
         return features;
 }
 
 int bnx2x_set_features(struct net_device *dev, netdev_features_t features)
 {
         struct bnx2x *bp = netdev_priv(dev);
-        u32 flags = bp->flags;
-        u32 changes;
+        netdev_features_t changes = features ^ dev->features;
         bool bnx2x_reload = false;
+        int rc;
 
-        if (features & NETIF_F_LRO)
-                flags |= TPA_ENABLE_FLAG;
-        else
-                flags &= ~TPA_ENABLE_FLAG;
-
-        if (features & NETIF_F_GRO)
-                flags |= GRO_ENABLE_FLAG;
-        else
-                flags &= ~GRO_ENABLE_FLAG;
-
-        if (features & NETIF_F_LOOPBACK) {
-                if (bp->link_params.loopback_mode != LOOPBACK_BMAC) {
-                        bp->link_params.loopback_mode = LOOPBACK_BMAC;
-                        bnx2x_reload = true;
-                }
-        } else {
-                if (bp->link_params.loopback_mode != LOOPBACK_NONE) {
-                        bp->link_params.loopback_mode = LOOPBACK_NONE;
-                        bnx2x_reload = true;
+        /* VFs or non SRIOV PFs should be able to change loopback feature */
+        if (!pci_num_vf(bp->pdev)) {
+                if (features & NETIF_F_LOOPBACK) {
+                        if (bp->link_params.loopback_mode != LOOPBACK_BMAC) {
+                                bp->link_params.loopback_mode = LOOPBACK_BMAC;
+                                bnx2x_reload = true;
+                        }
+                } else {
+                        if (bp->link_params.loopback_mode != LOOPBACK_NONE) {
+                                bp->link_params.loopback_mode = LOOPBACK_NONE;
+                                bnx2x_reload = true;
+                        }
                 }
         }
 
-        changes = flags ^ bp->flags;
-
         /* if GRO is changed while LRO is enabled, don't force a reload */
-        if ((changes & GRO_ENABLE_FLAG) && (flags & TPA_ENABLE_FLAG))
-                changes &= ~GRO_ENABLE_FLAG;
+        if ((changes & NETIF_F_GRO) && (features & NETIF_F_LRO))
+                changes &= ~NETIF_F_GRO;
 
         /* if GRO is changed while HW TPA is off, don't force a reload */
-        if ((changes & GRO_ENABLE_FLAG) && bp->disable_tpa)
-                changes &= ~GRO_ENABLE_FLAG;
+        if ((changes & NETIF_F_GRO) && bp->disable_tpa)
+                changes &= ~NETIF_F_GRO;
 
         if (changes)
                 bnx2x_reload = true;
 
-        bp->flags = flags;
-
         if (bnx2x_reload) {
-                if (bp->recovery_state == BNX2X_RECOVERY_DONE)
-                        return bnx2x_reload_if_running(dev);
+                if (bp->recovery_state == BNX2X_RECOVERY_DONE) {
+                        dev->features = features;
+                        rc = bnx2x_reload_if_running(dev);
+                        return rc ? rc : 1;
+                }
                 /* else: bnx2x_nic_load() will be called at end of recovery */
         }
 
@@ -4931,6 +4938,11 @@ int bnx2x_resume(struct pci_dev *pdev)
         }
         bp = netdev_priv(dev);
 
+        if (pci_num_vf(bp->pdev)) {
+                DP(BNX2X_MSG_IOV, "VFs are enabled, can not change MTU\n");
+                return -EPERM;
+        }
+
         if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
                 BNX2X_ERR("Handling parity error recovery. Try again later\n");
                 return -EAGAIN;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index adcacda7af7b..d7a71758e876 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -969,7 +969,7 @@ static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp,
 {
         int i;
 
-        if (fp->disable_tpa)
+        if (fp->mode == TPA_MODE_DISABLED)
                 return;
 
         for (i = 0; i < last; i++)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index e3d853cab7c9..48ed005ba73f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -1843,6 +1843,12 @@ static int bnx2x_set_ringparam(struct net_device *dev,
            "set ring params command parameters: rx_pending = %d, tx_pending = %d\n",
            ering->rx_pending, ering->tx_pending);
 
+        if (pci_num_vf(bp->pdev)) {
+                DP(BNX2X_MSG_IOV,
+                   "VFs are enabled, can not change ring parameters\n");
+                return -EPERM;
+        }
+
         if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
                 DP(BNX2X_MSG_ETHTOOL,
                    "Handling parity error recovery. Try again later\n");
@@ -2899,6 +2905,12 @@ static void bnx2x_self_test(struct net_device *dev,
         u8 is_serdes, link_up;
         int rc, cnt = 0;
 
+        if (pci_num_vf(bp->pdev)) {
+                DP(BNX2X_MSG_IOV,
+                   "VFs are enabled, can not perform self test\n");
+                return;
+        }
+
         if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
                 netdev_err(bp->dev,
                            "Handling parity error recovery. Try again later\n");
@@ -3468,6 +3480,11 @@ static int bnx2x_set_channels(struct net_device *dev,
            channels->rx_count, channels->tx_count, channels->other_count,
            channels->combined_count);
 
+        if (pci_num_vf(bp->pdev)) {
+                DP(BNX2X_MSG_IOV, "VFs are enabled, can not set channels\n");
+                return -EPERM;
+        }
+
         /* We don't support separate rx / tx channels.
          * We don't allow setting 'other' channels.
          */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index b9f85fccb419..556dcc162a62 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -3128,7 +3128,7 @@ static unsigned long bnx2x_get_q_flags(struct bnx2x *bp,
                 __set_bit(BNX2X_Q_FLG_FORCE_DEFAULT_PRI, &flags);
         }
 
-        if (!fp->disable_tpa) {
+        if (fp->mode != TPA_MODE_DISABLED) {
                 __set_bit(BNX2X_Q_FLG_TPA, &flags);
                 __set_bit(BNX2X_Q_FLG_TPA_IPV6, &flags);
                 if (fp->mode == TPA_MODE_GRO)
@@ -3176,7 +3176,7 @@ static void bnx2x_pf_rx_q_prep(struct bnx2x *bp,
         u16 sge_sz = 0;
         u16 tpa_agg_size = 0;
 
-        if (!fp->disable_tpa) {
+        if (fp->mode != TPA_MODE_DISABLED) {
                 pause->sge_th_lo = SGE_TH_LO(bp);
                 pause->sge_th_hi = SGE_TH_HI(bp);
 
@@ -3304,7 +3304,7 @@ static void bnx2x_pf_init(struct bnx2x *bp)
         /* This flag is relevant for E1x only.
          * E2 doesn't have a TPA configuration in a function level.
          */
-        flags |= (bp->flags & TPA_ENABLE_FLAG) ? FUNC_FLG_TPA : 0;
+        flags |= (bp->dev->features & NETIF_F_LRO) ? FUNC_FLG_TPA : 0;
 
         func_init.func_flgs = flags;
         func_init.pf_id = BP_FUNC(bp);
@@ -12107,11 +12107,8 @@ static int bnx2x_init_bp(struct bnx2x *bp)
 
         /* Set TPA flags */
         if (bp->disable_tpa) {
-                bp->flags &= ~(TPA_ENABLE_FLAG | GRO_ENABLE_FLAG);
+                bp->dev->hw_features &= ~NETIF_F_LRO;
                 bp->dev->features &= ~NETIF_F_LRO;
-        } else {
-                bp->flags |= (TPA_ENABLE_FLAG | GRO_ENABLE_FLAG);
-                bp->dev->features |= NETIF_F_LRO;
         }
 
         if (CHIP_IS_E1(bp))
@@ -13371,6 +13368,12 @@ static int bnx2x_init_one(struct pci_dev *pdev,
         bool is_vf;
         int cnic_cnt;
 
+        /* Management FW 'remembers' living interfaces. Allow it some time
+         * to forget previously living interfaces, allowing a proper re-load.
+         */
+        if (is_kdump_kernel())
+                msleep(5000);
+
         /* An estimated maximum supported CoS number according to the chip
          * version.
          * We will try to roughly estimate the maximum number of CoSes this chip
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index 15b2d1647560..06b8c0d8fd3b 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -594,7 +594,7 @@ int bnx2x_vfpf_setup_q(struct bnx2x *bp, struct bnx2x_fastpath *fp,
         bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SETUP_Q, sizeof(*req));
 
         /* select tpa mode to request */
-        if (!fp->disable_tpa) {
+        if (fp->mode != TPA_MODE_DISABLED) {
                 flags |= VFPF_QUEUE_FLG_TPA;
                 flags |= VFPF_QUEUE_FLG_TPA_IPV6;
                 if (fp->mode == TPA_MODE_GRO)
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 1270b189a9a2..069952fa5d64 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -18129,7 +18129,9 @@ static pci_ers_result_t tg3_io_error_detected(struct pci_dev *pdev,
 
         rtnl_lock();
 
-        tp->pcierr_recovery = true;
+        /* We needn't recover from permanent error */
+        if (state == pci_channel_io_frozen)
+                tp->pcierr_recovery = true;
 
         /* We probably don't have netdev yet */
         if (!netdev || !netif_running(netdev))
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index 9f5387249f24..4104d49f005d 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -707,6 +707,9 @@ static void gem_rx_refill(struct macb *bp)
 
                         /* properly align Ethernet header */
                         skb_reserve(skb, NET_IP_ALIGN);
+                } else {
+                        bp->rx_ring[entry].addr &= ~MACB_BIT(RX_USED);
+                        bp->rx_ring[entry].ctrl = 0;
                 }
         }
 
@@ -1473,9 +1476,9 @@ static void macb_init_rings(struct macb *bp)
         for (i = 0; i < TX_RING_SIZE; i++) {
                 bp->queues[0].tx_ring[i].addr = 0;
                 bp->queues[0].tx_ring[i].ctrl = MACB_BIT(TX_USED);
-                bp->queues[0].tx_head = 0;
-                bp->queues[0].tx_tail = 0;
         }
+        bp->queues[0].tx_head = 0;
+        bp->queues[0].tx_tail = 0;
         bp->queues[0].tx_ring[TX_RING_SIZE - 1].ctrl |= MACB_BIT(TX_WRAP);
 
         bp->rx_tail = 0;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 5959e3ae72da..e8578a742f2a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -492,7 +492,7 @@ int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr,
                 memoffset = (mtype * (edc_size * 1024 * 1024));
         else {
                 mc_size = EXT_MEM0_SIZE_G(t4_read_reg(adap,
-                                                      MA_EXT_MEMORY1_BAR_A));
+                                                      MA_EXT_MEMORY0_BAR_A));
                 memoffset = (MEM_MC0 * edc_size + mc_size) * 1024 * 1024;
         }
 
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index fb0bc3c3620e..a6dcbf850c1f 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4846,7 +4846,8 @@ err:
 }
 
 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
-                                 struct net_device *dev, u32 filter_mask)
+                                 struct net_device *dev, u32 filter_mask,
+                                 int nlflags)
 {
         struct be_adapter *adapter = netdev_priv(dev);
         int status = 0;
@@ -4868,7 +4869,7 @@ static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
         return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
                                        hsw_mode == PORT_FWD_TYPE_VEPA ?
                                        BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB,
-                                       0, 0);
+                                       0, 0, nlflags);
 }
 
 #ifdef CONFIG_BE2NET_VXLAN
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index f6a3a7abd468..66d47e448e4d 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -988,7 +988,10 @@ fec_restart(struct net_device *ndev)
                 rcntl |= 0x40000000 | 0x00000020;
 
                 /* RGMII, RMII or MII */
-                if (fep->phy_interface == PHY_INTERFACE_MODE_RGMII)
+                if (fep->phy_interface == PHY_INTERFACE_MODE_RGMII ||
+                    fep->phy_interface == PHY_INTERFACE_MODE_RGMII_ID ||
+                    fep->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID ||
+                    fep->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID)
                         rcntl |= (1 << 6);
                 else if (fep->phy_interface == PHY_INTERFACE_MODE_RMII)
                         rcntl |= (1 << 8);
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c
index 291c87036e17..2a0dc127df3f 100644
--- a/drivers/net/ethernet/ibm/ehea/ehea_main.c
+++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c
@@ -3347,7 +3347,7 @@ static int ehea_register_memory_hooks(void)
 {
         int ret = 0;
 
-        if (atomic_inc_and_test(&ehea_memory_hooks_registered))
+        if (atomic_inc_return(&ehea_memory_hooks_registered) > 1)
                 return 0;
 
         ret = ehea_create_busmap();
@@ -3381,12 +3381,14 @@ out3:
 out2:
         unregister_reboot_notifier(&ehea_reboot_nb);
 out:
+        atomic_dec(&ehea_memory_hooks_registered);
         return ret;
 }
 
 static void ehea_unregister_memory_hooks(void)
 {
-        if (atomic_read(&ehea_memory_hooks_registered))
+        /* Only remove the hooks if we've registered them */
+        if (atomic_read(&ehea_memory_hooks_registered) == 0)
                 return;
 
         unregister_reboot_notifier(&ehea_reboot_nb);
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index cd7675ac5bf9..18134766a114 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1238,7 +1238,7 @@ static int ibmveth_change_mtu(struct net_device *dev, int new_mtu)
                 return -EINVAL;
 
         for (i = 0; i < IBMVETH_NUM_BUFF_POOLS; i++)
-                if (new_mtu_oh < adapter->rx_buff_pool[i].buff_size)
+                if (new_mtu_oh <= adapter->rx_buff_pool[i].buff_size)
                         break;
 
         if (i == IBMVETH_NUM_BUFF_POOLS)
@@ -1257,7 +1257,7 @@ static int ibmveth_change_mtu(struct net_device *dev, int new_mtu)
         for (i = 0; i < IBMVETH_NUM_BUFF_POOLS; i++) {
                 adapter->rx_buff_pool[i].active = 1;
 
-                if (new_mtu_oh < adapter->rx_buff_pool[i].buff_size) {
+                if (new_mtu_oh <= adapter->rx_buff_pool[i].buff_size) {
                         dev->mtu = new_mtu;
                         vio_cmo_set_dev_desired(viodev,
                                                 ibmveth_get_desired_dma
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 24481cd7e59a..a54c14491e3b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -8053,10 +8053,10 @@ static int i40e_ndo_bridge_setlink(struct net_device *dev,
 #ifdef HAVE_BRIDGE_FILTER
 static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
                                    struct net_device *dev,
-                                   u32 __always_unused filter_mask)
+                                   u32 __always_unused filter_mask, int nlflags)
 #else
 static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
-                                   struct net_device *dev)
+                                   struct net_device *dev, int nlflags)
 #endif /* HAVE_BRIDGE_FILTER */
 {
         struct i40e_netdev_priv *np = netdev_priv(dev);
@@ -8078,7 +8078,8 @@ static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
         if (!veb)
                 return 0;
 
-        return ndo_dflt_bridge_getlink(skb, pid, seq, dev, veb->bridge_mode);
+        return ndo_dflt_bridge_getlink(skb, pid, seq, dev, veb->bridge_mode,
+                                       nlflags);
 }
 #endif /* HAVE_BRIDGE_ATTRIBS */
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index d3f4b0ceb3f7..5be12a00e1f4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -8044,7 +8044,7 @@ static int ixgbe_ndo_bridge_setlink(struct net_device *dev,
 
 static int ixgbe_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
                                     struct net_device *dev,
-                                    u32 filter_mask)
+                                    u32 filter_mask, int nlflags)
 {
         struct ixgbe_adapter *adapter = netdev_priv(dev);
 
@@ -8052,7 +8052,7 @@ static int ixgbe_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
                 return 0;
 
         return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
-                                       adapter->bridge_mode, 0, 0);
+                                       adapter->bridge_mode, 0, 0, nlflags);
 }
 
 static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev)
diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
index af829c578400..7ace07dad6a3 100644
--- a/drivers/net/ethernet/marvell/pxa168_eth.c
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -1508,7 +1508,8 @@ static int pxa168_eth_probe(struct platform_device *pdev)
                 np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
                 if (!np) {
                         dev_err(&pdev->dev, "missing phy-handle\n");
-                        return -EINVAL;
+                        err = -EINVAL;
+                        goto err_netdev;
                 }
                 of_property_read_u32(np, "reg", &pep->phy_addr);
                 pep->phy_intf = of_get_phy_mode(pdev->dev.of_node);
@@ -1526,7 +1527,7 @@ static int pxa168_eth_probe(struct platform_device *pdev)
         pep->smi_bus = mdiobus_alloc();
         if (pep->smi_bus == NULL) {
                 err = -ENOMEM;
-                goto err_base;
+                goto err_netdev;
         }
         pep->smi_bus->priv = pep;
         pep->smi_bus->name = "pxa168_eth smi";
@@ -1551,13 +1552,10 @@ err_mdiobus:
         mdiobus_unregister(pep->smi_bus);
 err_free_mdio:
         mdiobus_free(pep->smi_bus);
-err_base:
-        iounmap(pep->base);
 err_netdev:
         free_netdev(dev);
 err_clk:
-        clk_disable(clk);
-        clk_put(clk);
+        clk_disable_unprepare(clk);
         return err;
 }
 
@@ -1574,13 +1572,9 @@ static int pxa168_eth_remove(struct platform_device *pdev)
         if (pep->phy)
                 phy_disconnect(pep->phy);
         if (pep->clk) {
-                clk_disable(pep->clk);
-                clk_put(pep->clk);
-                pep->clk = NULL;
+                clk_disable_unprepare(pep->clk);
         }
 
-        iounmap(pep->base);
-        pep->base = NULL;
         mdiobus_unregister(pep->smi_bus);
         mdiobus_free(pep->smi_bus);
         unregister_netdev(dev);
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index 3f44e2bbb982..a2ddf3d75ff8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -1102,20 +1102,21 @@ static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc)
         struct mlx4_en_priv *priv = netdev_priv(dev);
 
         /* check if requested function is supported by the device */
-        if ((hfunc == ETH_RSS_HASH_TOP &&
-             !(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP)) ||
-            (hfunc == ETH_RSS_HASH_XOR &&
-             !(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR)))
-                return -EINVAL;
+        if (hfunc == ETH_RSS_HASH_TOP) {
+                if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP))
+                        return -EINVAL;
+                if (!(dev->features & NETIF_F_RXHASH))
+                        en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
+                return 0;
+        } else if (hfunc == ETH_RSS_HASH_XOR) {
+                if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR))
+                        return -EINVAL;
+                if (dev->features & NETIF_F_RXHASH)
+                        en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
+                return 0;
+        }
 
-        priv->rss_hash_fn = hfunc;
-        if (hfunc == ETH_RSS_HASH_TOP && !(dev->features & NETIF_F_RXHASH))
-                en_warn(priv,
-                        "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
-        if (hfunc == ETH_RSS_HASH_XOR && (dev->features & NETIF_F_RXHASH))
-                en_warn(priv,
-                        "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
-        return 0;
+        return -EINVAL;
 }
 
 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key,
@@ -1189,6 +1190,8 @@ static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
                 priv->prof->rss_rings = rss_rings;
         if (key)
                 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE);
+        if (hfunc !=  ETH_RSS_HASH_NO_CHANGE)
+                priv->rss_hash_fn = hfunc;
 
         if (port_up) {
                 err = mlx4_en_start_port(dev);
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 0f1afc085d58..32f5ec737472 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1467,6 +1467,7 @@ static void mlx4_en_service_task(struct work_struct *work)
                 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
                         mlx4_en_ptp_overflow_check(mdev);
 
+                mlx4_en_recover_from_oom(priv);
                 queue_delayed_work(mdev->workqueue, &priv->service_task,
                                    SERVICE_TASK_DELAY);
         }
@@ -1721,7 +1722,7 @@ mac_err:
 cq_err:
         while (rx_index--) {
                 mlx4_en_deactivate_cq(priv, priv->rx_cq[rx_index]);
-                mlx4_en_free_affinity_hint(priv, i);
+                mlx4_en_free_affinity_hint(priv, rx_index);
         }
         for (i = 0; i < priv->rx_ring_num; i++)
                 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 4fdd3c37e47b..2a77a6b19121 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -244,6 +244,12 @@ static int mlx4_en_prepare_rx_desc(struct mlx4_en_priv *priv,
         return mlx4_en_alloc_frags(priv, rx_desc, frags, ring->page_alloc, gfp);
 }
 
+static inline bool mlx4_en_is_ring_empty(struct mlx4_en_rx_ring *ring)
+{
+        BUG_ON((u32)(ring->prod - ring->cons) > ring->actual_size);
+        return ring->prod == ring->cons;
+}
+
 static inline void mlx4_en_update_rx_prod_db(struct mlx4_en_rx_ring *ring)
 {
         *ring->wqres.db.db = cpu_to_be32(ring->prod & 0xffff);
@@ -315,8 +321,7 @@ static void mlx4_en_free_rx_buf(struct mlx4_en_priv *priv,
                ring->cons, ring->prod);
 
         /* Unmap and free Rx buffers */
-        BUG_ON((u32) (ring->prod - ring->cons) > ring->actual_size);
-        while (ring->cons != ring->prod) {
+        while (!mlx4_en_is_ring_empty(ring)) {
                 index = ring->cons & ring->size_mask;
                 en_dbg(DRV, priv, "Processing descriptor:%d\n", index);
                 mlx4_en_free_rx_desc(priv, ring, index);
@@ -491,6 +496,23 @@ err_allocator:
         return err;
 }
 
+/* We recover from out of memory by scheduling our napi poll
+ * function (mlx4_en_process_cq), which tries to allocate
+ * all missing RX buffers (call to mlx4_en_refill_rx_buffers).
+ */
+void mlx4_en_recover_from_oom(struct mlx4_en_priv *priv)
+{
+        int ring;
+
+        if (!priv->port_up)
+                return;
+
+        for (ring = 0; ring < priv->rx_ring_num; ring++) {
+                if (mlx4_en_is_ring_empty(priv->rx_ring[ring]))
+                        napi_reschedule(&priv->rx_cq[ring]->napi);
+        }
+}
+
 void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
                              struct mlx4_en_rx_ring **pring,
                              u32 size, u16 stride)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 1783705273d8..f7bf312fb443 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -143,8 +143,10 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
         ring->hwtstamp_tx_type = priv->hwtstamp_config.tx_type;
         ring->queue_index = queue_index;
 
-        if (queue_index < priv->num_tx_rings_p_up && cpu_online(queue_index))
-                cpumask_set_cpu(queue_index, &ring->affinity_mask);
+        if (queue_index < priv->num_tx_rings_p_up)
+                cpumask_set_cpu_local_first(queue_index,
+                                            priv->mdev->dev->numa_node,
+                                            &ring->affinity_mask);
 
         *pring = ring;
         return 0;
@@ -213,7 +215,7 @@ int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
 
         err = mlx4_qp_to_ready(mdev->dev, &ring->wqres.mtt, &ring->context,
                                &ring->qp, &ring->qp_state);
-        if (!user_prio && cpu_online(ring->queue_index))
+        if (!cpumask_empty(&ring->affinity_mask))
                 netif_set_xps_queue(priv->dev, &ring->affinity_mask,
                                     ring->queue_index);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index a4079811b176..e30bf57ad7a1 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -56,11 +56,13 @@ MODULE_PARM_DESC(enable_qos, "Enable Enhanced QoS support (default: on)");
 #define MLX4_GET(dest, source, offset)                                \
         do {                                                          \
                 void *__p = (char *) (source) + (offset);             \
+                u64 val;                                              \
                 switch (sizeof (dest)) {                              \
                 case 1: (dest) = *(u8 *) __p;       break;            \
                 case 2: (dest) = be16_to_cpup(__p); break;            \
                 case 4: (dest) = be32_to_cpup(__p); break;            \
-                case 8: (dest) = be64_to_cpup(__p); break;            \
+                case 8: val = get_unaligned((u64 *)__p);              \
+                        (dest) = be64_to_cpu(val);  break;            \
                 default: __buggy_use_of_MLX4_GET();                   \
                 }                                                     \
         } while (0)
@@ -1605,9 +1607,17 @@ static void get_board_id(void *vsd, char *board_id)
                  * swaps each 4-byte word before passing it back to
                  * us.  Therefore we need to swab it before printing.
                  */
-                for (i = 0; i < 4; ++i)
-                        ((u32 *) board_id)[i] =
-                                swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4));
+                u32 *bid_u32 = (u32 *)board_id;
+
+                for (i = 0; i < 4; ++i) {
+                        u32 *addr;
+                        u32 val;
+
+                        addr = (u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4);
+                        val = get_unaligned(addr);
+                        val = swab32(val);
+                        put_unaligned(val, &bid_u32[i]);
+                }
         }
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 9de30216b146..d021f079f181 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -774,6 +774,7 @@ int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
 void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
                                 struct mlx4_en_tx_ring *ring);
 void mlx4_en_set_num_rx_rings(struct mlx4_en_dev *mdev);
+void mlx4_en_recover_from_oom(struct mlx4_en_priv *priv);
 int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
                            struct mlx4_en_rx_ring **pring,
                            u32 size, u16 stride, int node);
diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
index 1412f5af05ec..2bae50292dcd 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
@@ -69,11 +69,7 @@
 #include <net/ip.h>
 #include <net/tcp.h>
 #include <asm/byteorder.h>
-#include <asm/io.h>
 #include <asm/processor.h>
-#ifdef CONFIG_MTRR
-#include <asm/mtrr.h>
-#endif
 #include <net/busy_poll.h>
 
 #include "myri10ge_mcp.h"
@@ -242,8 +238,7 @@ struct myri10ge_priv {
         unsigned int rdma_tags_available;
         int intr_coal_delay;
         __be32 __iomem *intr_coal_delay_ptr;
-        int mtrr;
-        int wc_enabled;
+        int wc_cookie;
         int down_cnt;
         wait_queue_head_t down_wq;
         struct work_struct watchdog_work;
@@ -1905,7 +1900,7 @@ static const char myri10ge_gstrings_main_stats[][ETH_GSTRING_LEN] = {
         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
         "tx_heartbeat_errors", "tx_window_errors",
         /* device-specific stats */
-        "tx_boundary", "WC", "irq", "MSI", "MSIX",
+        "tx_boundary", "irq", "MSI", "MSIX",
         "read_dma_bw_MBs", "write_dma_bw_MBs", "read_write_dma_bw_MBs",
         "serial_number", "watchdog_resets",
 #ifdef CONFIG_MYRI10GE_DCA
@@ -1984,7 +1979,6 @@ myri10ge_get_ethtool_stats(struct net_device *netdev,
                 data[i] = ((u64 *)&link_stats)[i];
 
         data[i++] = (unsigned int)mgp->tx_boundary;
-        data[i++] = (unsigned int)mgp->wc_enabled;
         data[i++] = (unsigned int)mgp->pdev->irq;
         data[i++] = (unsigned int)mgp->msi_enabled;
         data[i++] = (unsigned int)mgp->msix_enabled;
@@ -4040,14 +4034,7 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
         mgp->board_span = pci_resource_len(pdev, 0);
         mgp->iomem_base = pci_resource_start(pdev, 0);
-        mgp->mtrr = -1;
-        mgp->wc_enabled = 0;
-#ifdef CONFIG_MTRR
-        mgp->mtrr = mtrr_add(mgp->iomem_base, mgp->board_span,
-                             MTRR_TYPE_WRCOMB, 1);
-        if (mgp->mtrr >= 0)
-                mgp->wc_enabled = 1;
-#endif
+        mgp->wc_cookie = arch_phys_wc_add(mgp->iomem_base, mgp->board_span);
         mgp->sram = ioremap_wc(mgp->iomem_base, mgp->board_span);
         if (mgp->sram == NULL) {
                 dev_err(&pdev->dev, "ioremap failed for %ld bytes at 0x%lx\n",
@@ -4146,14 +4133,14 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                 goto abort_with_state;
         }
         if (mgp->msix_enabled)
-                dev_info(dev, "%d MSI-X IRQs, tx bndry %d, fw %s, WC %s\n",
+                dev_info(dev, "%d MSI-X IRQs, tx bndry %d, fw %s, MTRR %s, WC Enabled\n",
                          mgp->num_slices, mgp->tx_boundary, mgp->fw_name,
-                         (mgp->wc_enabled ? "Enabled" : "Disabled"));
+                         (mgp->wc_cookie > 0 ? "Enabled" : "Disabled"));
         else
-                dev_info(dev, "%s IRQ %d, tx bndry %d, fw %s, WC %s\n",
+                dev_info(dev, "%s IRQ %d, tx bndry %d, fw %s, MTRR %s, WC Enabled\n",
                          mgp->msi_enabled ? "MSI" : "xPIC",
                          pdev->irq, mgp->tx_boundary, mgp->fw_name,
-                         (mgp->wc_enabled ? "Enabled" : "Disabled"));
+                         (mgp->wc_cookie > 0 ? "Enabled" : "Disabled"));
 
         board_number++;
         return 0;
@@ -4175,10 +4162,7 @@ abort_with_ioremap:
         iounmap(mgp->sram);
 
 abort_with_mtrr:
-#ifdef CONFIG_MTRR
-        if (mgp->mtrr >= 0)
-                mtrr_del(mgp->mtrr, mgp->iomem_base, mgp->board_span);
-#endif
+        arch_phys_wc_del(mgp->wc_cookie);
         dma_free_coherent(&pdev->dev, sizeof(*mgp->cmd),
                           mgp->cmd, mgp->cmd_bus);
 
@@ -4220,11 +4204,7 @@ static void myri10ge_remove(struct pci_dev *pdev)
         pci_restore_state(pdev);
 
         iounmap(mgp->sram);
-
-#ifdef CONFIG_MTRR
-        if (mgp->mtrr >= 0)
-                mtrr_del(mgp->mtrr, mgp->iomem_base, mgp->board_span);
-#endif
+        arch_phys_wc_del(mgp->wc_cookie);
         myri10ge_free_slices(mgp);
         kfree(mgp->msix_vectors);
         dma_free_coherent(&pdev->dev, sizeof(*mgp->cmd),
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c
index 5c4068353f66..8da7c3faf817 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c
@@ -135,7 +135,7 @@ void netxen_release_tx_buffers(struct netxen_adapter *adapter)
         int i, j;
         struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
 
-        spin_lock(&adapter->tx_clean_lock);
+        spin_lock_bh(&adapter->tx_clean_lock);
         cmd_buf = tx_ring->cmd_buf_arr;
         for (i = 0; i < tx_ring->num_desc; i++) {
                 buffrag = cmd_buf->frag_array;
@@ -159,7 +159,7 @@ void netxen_release_tx_buffers(struct netxen_adapter *adapter)
                 }
                 cmd_buf++;
         }
-        spin_unlock(&adapter->tx_clean_lock);
+        spin_unlock_bh(&adapter->tx_clean_lock);
 }
 
 void netxen_free_sw_resources(struct netxen_adapter *adapter)
diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
index a570a60533be..ec251531bd9f 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -4176,14 +4176,15 @@ static int rocker_port_bridge_setlink(struct net_device *dev,
 
 static int rocker_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
                                       struct net_device *dev,
-                                      u32 filter_mask)
+                                      u32 filter_mask, int nlflags)
 {
         struct rocker_port *rocker_port = netdev_priv(dev);
         u16 mode = BRIDGE_MODE_UNDEF;
         u32 mask = BR_LEARNING | BR_LEARNING_SYNC;
 
         return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode,
-                                       rocker_port->brport_flags, mask);
+                                       rocker_port->brport_flags, mask,
+                                       nlflags);
 }
 
 static int rocker_port_get_phys_port_name(struct net_device *dev,
diff --git a/drivers/net/ethernet/ti/netcp_ethss.c b/drivers/net/ethernet/ti/netcp_ethss.c
index 2bef655279f3..9b7e0a34c98b 100644
--- a/drivers/net/ethernet/ti/netcp_ethss.c
+++ b/drivers/net/ethernet/ti/netcp_ethss.c
@@ -1765,7 +1765,9 @@ static void netcp_ethss_link_state_action(struct gbe_priv *gbe_dev,
                                      ALE_PORT_STATE,
                                      ALE_PORT_STATE_FORWARD);
 
-                if (ndev && slave->open)
+                if (ndev && slave->open &&
+                    slave->link_interface != SGMII_LINK_MAC_PHY &&
+                    slave->link_interface != XGMII_LINK_MAC_PHY)
                         netif_carrier_on(ndev);
         } else {
                 writel(mac_control, GBE_REG_ADDR(slave, emac_regs,
@@ -1773,7 +1775,9 @@ static void netcp_ethss_link_state_action(struct gbe_priv *gbe_dev,
                 cpsw_ale_control_set(gbe_dev->ale, slave->port_num,
                                      ALE_PORT_STATE,
                                      ALE_PORT_STATE_DISABLE);
-                if (ndev)
+                if (ndev &&
+                    slave->link_interface != SGMII_LINK_MAC_PHY &&
+                    slave->link_interface != XGMII_LINK_MAC_PHY)
                         netif_carrier_off(ndev);
         }
 
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index a10b31664709..41071d32bc8e 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -128,7 +128,6 @@ struct ndis_tcp_ip_checksum_info;
 struct hv_netvsc_packet {
         /* Bookkeeping stuff */
         u32 status;
-        bool part_of_skb;
 
         bool is_data_pkt;
         bool xmit_more; /* from skb */
@@ -612,6 +611,15 @@ struct multi_send_data {
         u32 count; /* counter of batched packets */
 };
 
+/* The context of the netvsc device  */
+struct net_device_context {
+        /* point back to our device context */
+        struct hv_device *device_ctx;
+        struct delayed_work dwork;
+        struct work_struct work;
+        u32 msg_enable; /* debug level */
+};
+
 /* Per netvsc device */
 struct netvsc_device {
         struct hv_device *dev;
@@ -667,6 +675,9 @@ struct netvsc_device {
         struct multi_send_data msd[NR_CPUS];
         u32 max_pkt; /* max number of pkt in one send, e.g. 8 */
         u32 pkt_align; /* alignment bytes, e.g. 8 */
+
+        /* The net device context */
+        struct net_device_context *nd_ctx;
 };
 
 /* NdisInitialize message */
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 2e8ad0636b46..2d9ef533cc48 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -889,11 +889,6 @@ int netvsc_send(struct hv_device *device,
                 } else {
                         packet->page_buf_cnt = 0;
                         packet->total_data_buflen += msd_len;
-                        if (!packet->part_of_skb) {
-                                skb = (struct sk_buff *)(unsigned long)packet->
-                                       send_completion_tid;
-                                packet->send_completion_tid = 0;
-                        }
                 }
 
                 if (msdp->pkt)
@@ -1197,6 +1192,9 @@ int netvsc_device_add(struct hv_device *device, void *additional_info)
          */
         ndev = net_device->ndev;
 
+        /* Add netvsc_device context to netvsc_device */
+        net_device->nd_ctx = netdev_priv(ndev);
+
         /* Initialize the NetVSC channel extension */
         init_completion(&net_device->channel_init_wait);
 
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index a3a9d3898a6e..5993c7e2d723 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -40,18 +40,21 @@
 
 #include "hyperv_net.h"
 
-struct net_device_context {
-        /* point back to our device context */
-        struct hv_device *device_ctx;
-        struct delayed_work dwork;
-        struct work_struct work;
-};
 
 #define RING_SIZE_MIN 64
 static int ring_size = 128;
 module_param(ring_size, int, S_IRUGO);
 MODULE_PARM_DESC(ring_size, "Ring buffer size (# of pages)");
 
+static const u32 default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE |
+                                NETIF_MSG_LINK | NETIF_MSG_IFUP |
+                                NETIF_MSG_IFDOWN | NETIF_MSG_RX_ERR |
+                                NETIF_MSG_TX_ERR;
+
+static int debug = -1;
+module_param(debug, int, S_IRUGO);
+MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
+
 static void do_set_multicast(struct work_struct *w)
 {
         struct net_device_context *ndevctx =
@@ -235,9 +238,6 @@ void netvsc_xmit_completion(void *context)
         struct sk_buff *skb = (struct sk_buff *)
                 (unsigned long)packet->send_completion_tid;
 
-        if (!packet->part_of_skb)
-                kfree(packet);
-
         if (skb)
                 dev_kfree_skb_any(skb);
 }
@@ -389,7 +389,6 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
         u32 net_trans_info;
         u32 hash;
         u32 skb_length;
-        u32 head_room;
         u32 pkt_sz;
         struct hv_page_buffer page_buf[MAX_PAGE_BUFFER_COUNT];
 
@@ -402,7 +401,6 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 
 check_size:
         skb_length = skb->len;
-        head_room = skb_headroom(skb);
         num_data_pgs = netvsc_get_slots(skb) + 2;
         if (num_data_pgs > MAX_PAGE_BUFFER_COUNT && linear) {
                 net_alert_ratelimited("packet too big: %u pages (%u bytes)\n",
@@ -421,20 +419,14 @@ check_size:
 
         pkt_sz = sizeof(struct hv_netvsc_packet) + RNDIS_AND_PPI_SIZE;
 
-        if (head_room < pkt_sz) {
-                packet = kmalloc(pkt_sz, GFP_ATOMIC);
-                if (!packet) {
-                        /* out of memory, drop packet */
-                        netdev_err(net, "unable to alloc hv_netvsc_packet\n");
-                        ret = -ENOMEM;
-                        goto drop;
-                }
-                packet->part_of_skb = false;
-        } else {
-                /* Use the headroom for building up the packet */
-                packet = (struct hv_netvsc_packet *)skb->head;
-                packet->part_of_skb = true;
+        ret = skb_cow_head(skb, pkt_sz);
+        if (ret) {
+                netdev_err(net, "unable to alloc hv_netvsc_packet\n");
+                ret = -ENOMEM;
+                goto drop;
         }
+        /* Use the headroom for building up the packet */
+        packet = (struct hv_netvsc_packet *)skb->head;
 
         packet->status = 0;
         packet->xmit_more = skb->xmit_more;
@@ -591,8 +583,6 @@ drop:
                 net->stats.tx_bytes += skb_length;
                 net->stats.tx_packets++;
         } else {
-                if (packet && !packet->part_of_skb)
-                        kfree(packet);
                 if (ret != -EAGAIN) {
                         dev_kfree_skb_any(skb);
                         net->stats.tx_dropped++;
@@ -888,6 +878,11 @@ static int netvsc_probe(struct hv_device *dev,
 
         net_device_ctx = netdev_priv(net);
         net_device_ctx->device_ctx = dev;
+        net_device_ctx->msg_enable = netif_msg_init(debug, default_msg);
+        if (netif_msg_probe(net_device_ctx))
+                netdev_dbg(net, "netvsc msg_enable: %d\n",
+                           net_device_ctx->msg_enable);
+
         hv_set_drvdata(dev, net);
         INIT_DELAYED_WORK(&net_device_ctx->dwork, netvsc_link_change);
         INIT_WORK(&net_device_ctx->work, do_set_multicast);
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 0d92efefd796..9118cea91882 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -429,7 +429,8 @@ int rndis_filter_receive(struct hv_device *dev,
 
         rndis_msg = pkt->data;
 
-        dump_rndis_message(dev, rndis_msg);
+        if (netif_msg_rx_err(net_dev->nd_ctx))
+                dump_rndis_message(dev, rndis_msg);
 
         switch (rndis_msg->ndis_msg_type) {
         case RNDIS_MSG_PACKET:
diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
index 49ce7ece5af3..c9cb486c753d 100644
--- a/drivers/net/phy/mdio-gpio.c
+++ b/drivers/net/phy/mdio-gpio.c
@@ -80,7 +80,8 @@ static void mdio_dir(struct mdiobb_ctrl *ctrl, int dir)
                  * assume the pin serves as pull-up. If direction is
                  * output, the default value is high.
                  */
-                gpio_set_value(bitbang->mdo, 1 ^ bitbang->mdo_active_low);
+                gpio_set_value_cansleep(bitbang->mdo,
+                                        1 ^ bitbang->mdo_active_low);
                 return;
         }
 
@@ -96,7 +97,8 @@ static int mdio_get(struct mdiobb_ctrl *ctrl)
         struct mdio_gpio_info *bitbang =
                 container_of(ctrl, struct mdio_gpio_info, ctrl);
 
-        return gpio_get_value(bitbang->mdio) ^ bitbang->mdio_active_low;
+        return gpio_get_value_cansleep(bitbang->mdio) ^
+                bitbang->mdio_active_low;
 }
 
 static void mdio_set(struct mdiobb_ctrl *ctrl, int what)
@@ -105,9 +107,11 @@ static void mdio_set(struct mdiobb_ctrl *ctrl, int what)
                 container_of(ctrl, struct mdio_gpio_info, ctrl);
 
         if (bitbang->mdo)
-                gpio_set_value(bitbang->mdo, what ^ bitbang->mdo_active_low);
+                gpio_set_value_cansleep(bitbang->mdo,
+                                        what ^ bitbang->mdo_active_low);
         else
-                gpio_set_value(bitbang->mdio, what ^ bitbang->mdio_active_low);
+                gpio_set_value_cansleep(bitbang->mdio,
+                                        what ^ bitbang->mdio_active_low);
 }
 
 static void mdc_set(struct mdiobb_ctrl *ctrl, int what)
@@ -115,7 +119,7 @@ static void mdc_set(struct mdiobb_ctrl *ctrl, int what)
         struct mdio_gpio_info *bitbang =
                 container_of(ctrl, struct mdio_gpio_info, ctrl);
 
-        gpio_set_value(bitbang->mdc, what ^ bitbang->mdc_active_low);
+        gpio_set_value_cansleep(bitbang->mdc, what ^ bitbang->mdc_active_low);
 }
 
 static struct mdiobb_ops mdio_gpio_ops = {
diff --git a/drivers/net/phy/mdio-mux-gpio.c b/drivers/net/phy/mdio-mux-gpio.c
index 1a87a585e74d..66edd99bc302 100644
--- a/drivers/net/phy/mdio-mux-gpio.c
+++ b/drivers/net/phy/mdio-mux-gpio.c
@@ -12,33 +12,30 @@
 #include <linux/module.h>
 #include <linux/phy.h>
 #include <linux/mdio-mux.h>
-#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
 
 #define DRV_VERSION "1.1"
 #define DRV_DESCRIPTION "GPIO controlled MDIO bus multiplexer driver"
 
-#define MDIO_MUX_GPIO_MAX_BITS 8
-
 struct mdio_mux_gpio_state {
-        struct gpio_desc *gpio[MDIO_MUX_GPIO_MAX_BITS];
-        unsigned int num_gpios;
+        struct gpio_descs *gpios;
         void *mux_handle;
 };
 
 static int mdio_mux_gpio_switch_fn(int current_child, int desired_child,
                                    void *data)
 {
-        int values[MDIO_MUX_GPIO_MAX_BITS];
-        unsigned int n;
         struct mdio_mux_gpio_state *s = data;
+        int values[s->gpios->ndescs];
+        unsigned int n;
 
         if (current_child == desired_child)
                 return 0;
 
-        for (n = 0; n < s->num_gpios; n++) {
+        for (n = 0; n < s->gpios->ndescs; n++)
                 values[n] = (desired_child >> n) & 1;
-        }
-        gpiod_set_array_cansleep(s->num_gpios, s->gpio, values);
+
+        gpiod_set_array_cansleep(s->gpios->ndescs, s->gpios->desc, values);
 
         return 0;
 }
@@ -46,56 +43,33 @@ static int mdio_mux_gpio_switch_fn(int current_child, int desired_child,
 static int mdio_mux_gpio_probe(struct platform_device *pdev)
 {
         struct mdio_mux_gpio_state *s;
-        int num_gpios;
-        unsigned int n;
         int r;
 
-        if (!pdev->dev.of_node)
-                return -ENODEV;
-
-        num_gpios = of_gpio_count(pdev->dev.of_node);
-        if (num_gpios <= 0 || num_gpios > MDIO_MUX_GPIO_MAX_BITS)
-                return -ENODEV;
-
         s = devm_kzalloc(&pdev->dev, sizeof(*s), GFP_KERNEL);
         if (!s)
                 return -ENOMEM;
 
-        s->num_gpios = num_gpios;
-
-        for (n = 0; n < num_gpios; ) {
-                struct gpio_desc *gpio = gpiod_get_index(&pdev->dev, NULL, n,
-                                                         GPIOD_OUT_LOW);
-                if (IS_ERR(gpio)) {
-                        r = PTR_ERR(gpio);
-                        goto err;
-                }
-                s->gpio[n] = gpio;
-                n++;
-        }
+        s->gpios = gpiod_get_array(&pdev->dev, NULL, GPIOD_OUT_LOW);
+        if (IS_ERR(s->gpios))
+                return PTR_ERR(s->gpios);
 
         r = mdio_mux_init(&pdev->dev,
                           mdio_mux_gpio_switch_fn, &s->mux_handle, s);
 
-        if (r == 0) {
-                pdev->dev.platform_data = s;
-                return 0;
-        }
-err:
-        while (n) {
-                n--;
-                gpiod_put(s->gpio[n]);
+        if (r != 0) {
+                gpiod_put_array(s->gpios);
+                return r;
         }
-        return r;
+
+        pdev->dev.platform_data = s;
+        return 0;
 }
 
 static int mdio_mux_gpio_remove(struct platform_device *pdev)
 {
-        unsigned int n;
         struct mdio_mux_gpio_state *s = dev_get_platdata(&pdev->dev);
         mdio_mux_uninit(s->mux_handle);
-        for (n = 0; n < s->num_gpios; n++)
-                gpiod_put(s->gpio[n]);
+        gpiod_put_array(s->gpios);
         return 0;
 }
 
diff --git a/drivers/net/ppp/ppp_mppe.c b/drivers/net/ppp/ppp_mppe.c
index 911b21602ff2..05005c660d4d 100644
--- a/drivers/net/ppp/ppp_mppe.c
+++ b/drivers/net/ppp/ppp_mppe.c
@@ -478,7 +478,6 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf,
         struct blkcipher_desc desc = { .tfm = state->arc4 };
         unsigned ccount;
         int flushed = MPPE_BITS(ibuf) & MPPE_BIT_FLUSHED;
-        int sanity = 0;
         struct scatterlist sg_in[1], sg_out[1];
 
         if (isize <= PPP_HDRLEN + MPPE_OVHD) {
@@ -514,31 +513,19 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf,
                        "mppe_decompress[%d]: ENCRYPTED bit not set!\n",
                        state->unit);
                 state->sanity_errors += 100;
-                sanity = 1;
+                goto sanity_error;
         }
         if (!state->stateful && !flushed) {
                 printk(KERN_DEBUG "mppe_decompress[%d]: FLUSHED bit not set in "
                        "stateless mode!\n", state->unit);
                 state->sanity_errors += 100;
-                sanity = 1;
+                goto sanity_error;
         }
         if (state->stateful && ((ccount & 0xff) == 0xff) && !flushed) {
                 printk(KERN_DEBUG "mppe_decompress[%d]: FLUSHED bit not set on "
                        "flag packet!\n", state->unit);
                 state->sanity_errors += 100;
-                sanity = 1;
-        }
-
-        if (sanity) {
-                if (state->sanity_errors < SANITY_MAX)
-                        return DECOMP_ERROR;
-                else
-                        /*
-                         * Take LCP down if the peer is sending too many bogons.
-                         * We don't want to do this for a single or just a few
-                         * instances since it could just be due to packet corruption.
-                         */
-                        return DECOMP_FATALERROR;
+                goto sanity_error;
         }
 
         /*
@@ -546,6 +533,13 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf,
          */
 
         if (!state->stateful) {
+                /* Discard late packet */
+                if ((ccount - state->ccount) % MPPE_CCOUNT_SPACE
+                                                > MPPE_CCOUNT_SPACE / 2) {
+                        state->sanity_errors++;
+                        goto sanity_error;
+                }
+
                 /* RFC 3078, sec 8.1.  Rekey for every packet. */
                 while (state->ccount != ccount) {
                         mppe_rekey(state, 0);
@@ -649,6 +643,16 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf,
         state->sanity_errors >>= 1;
 
         return osize;
+
+sanity_error:
+        if (state->sanity_errors < SANITY_MAX)
+                return DECOMP_ERROR;
+        else
+                /* Take LCP down if the peer is sending too many bogons.
+                 * We don't want to do this for a single or just a few
+                 * instances since it could just be due to packet corruption.
+                 */
+                return DECOMP_FATALERROR;
 }
 
 /*
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 154116aafd0d..27a5f954f8e9 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -730,12 +730,8 @@ static int vxlan_fdb_create(struct vxlan_dev *vxlan,
                         /* Only change unicasts */
                         if (!(is_multicast_ether_addr(f->eth_addr) ||
                              is_zero_ether_addr(f->eth_addr))) {
-                                int rc = vxlan_fdb_replace(f, ip, port, vni,
+                                notify |= vxlan_fdb_replace(f, ip, port, vni,
                                                            ifindex);
-
-                                if (rc < 0)
-                                        return rc;
-                                notify |= rc;
                         } else
                                 return -EOPNOTSUPP;
                 }
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 89dca77ca038..18ee2089df4a 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -1110,7 +1110,7 @@ void devm_pinctrl_put(struct pinctrl *p)
 EXPORT_SYMBOL_GPL(devm_pinctrl_put);
 
 int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps,
-                         bool dup, bool locked)
+                         bool dup)
 {
         int i, ret;
         struct pinctrl_maps *maps_node;
@@ -1178,11 +1178,9 @@ int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps,
                 maps_node->maps = maps;
         }
 
-        if (!locked)
-                mutex_lock(&pinctrl_maps_mutex);
+        mutex_lock(&pinctrl_maps_mutex);
         list_add_tail(&maps_node->node, &pinctrl_maps);
-        if (!locked)
-                mutex_unlock(&pinctrl_maps_mutex);
+        mutex_unlock(&pinctrl_maps_mutex);
 
         return 0;
 }
@@ -1197,7 +1195,7 @@ int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps,
 int pinctrl_register_mappings(struct pinctrl_map const *maps,
                               unsigned num_maps)
 {
-        return pinctrl_register_map(maps, num_maps, true, false);
+        return pinctrl_register_map(maps, num_maps, true);
 }
 
 void pinctrl_unregister_map(struct pinctrl_map const *map)
diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h
index 75476b3d87da..b24ea846c867 100644
--- a/drivers/pinctrl/core.h
+++ b/drivers/pinctrl/core.h
@@ -183,7 +183,7 @@ static inline struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev,
 }
 
 int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps,
-                         bool dup, bool locked);
+                         bool dup);
 void pinctrl_unregister_map(struct pinctrl_map const *map);
 
 extern int pinctrl_force_sleep(struct pinctrl_dev *pctldev);
diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c
index eda13de2e7c0..0bbf7d71b281 100644
--- a/drivers/pinctrl/devicetree.c
+++ b/drivers/pinctrl/devicetree.c
@@ -92,7 +92,7 @@ static int dt_remember_or_free_map(struct pinctrl *p, const char *statename,
         dt_map->num_maps = num_maps;
         list_add_tail(&dt_map->node, &p->dt_maps);
 
-        return pinctrl_register_map(map, num_maps, false, true);
+        return pinctrl_register_map(map, num_maps, false);
 }
 
 struct pinctrl_dev *of_pinctrl_get(struct device_node *np)
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 493294c0ebe6..474812e2b0cb 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -881,6 +881,8 @@ static int mtk_gpio_set_debounce(struct gpio_chip *chip, unsigned offset,
         if (!mtk_eint_get_mask(pctl, eint_num)) {
                 mtk_eint_mask(d);
                 unmask = 1;
+        } else {
+                unmask = 0;
         }
 
         clr_bit = 0xff << eint_offset;
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-370.c b/drivers/pinctrl/mvebu/pinctrl-armada-370.c
index 42f930f70de3..03aa58c4cb85 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-370.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-370.c
@@ -364,7 +364,7 @@ static struct mvebu_mpp_mode mv88f6710_mpp_modes[] = {
            MPP_FUNCTION(0x5, "audio", "mclk"),
            MPP_FUNCTION(0x6, "uart0", "cts")),
         MPP_MODE(63,
-           MPP_FUNCTION(0x0, "gpo", NULL),
+           MPP_FUNCTION(0x0, "gpio", NULL),
            MPP_FUNCTION(0x1, "spi0", "sck"),
            MPP_FUNCTION(0x2, "tclk", NULL)),
         MPP_MODE(64,
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
index b2d22218a258..ae4115e4b4ef 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
@@ -260,6 +260,7 @@ static int pmic_gpio_set_mux(struct pinctrl_dev *pctldev, unsigned function,
                         val = 1;
         }
 
+        val = val << PMIC_GPIO_REG_MODE_DIR_SHIFT;
         val |= pad->function << PMIC_GPIO_REG_MODE_FUNCTION_SHIFT;
         val |= pad->out_value & PMIC_GPIO_REG_MODE_VALUE_SHIFT;
 
@@ -417,7 +418,7 @@ static int pmic_gpio_config_set(struct pinctrl_dev *pctldev, unsigned int pin,
                 return ret;
 
         val = pad->buffer_type << PMIC_GPIO_REG_OUT_TYPE_SHIFT;
-        val = pad->strength << PMIC_GPIO_REG_OUT_STRENGTH_SHIFT;
+        val |= pad->strength << PMIC_GPIO_REG_OUT_STRENGTH_SHIFT;
 
         ret = pmic_gpio_write(state, pad, PMIC_GPIO_REG_DIG_OUT_CTL, val);
         if (ret < 0)
@@ -466,12 +467,13 @@ static void pmic_gpio_config_dbg_show(struct pinctrl_dev *pctldev,
                 seq_puts(s, " ---");
         } else {
 
-                if (!pad->input_enabled) {
+                if (pad->input_enabled) {
                         ret = pmic_gpio_read(state, pad, PMIC_MPP_REG_RT_STS);
-                        if (!ret) {
-                                ret &= PMIC_MPP_REG_RT_STS_VAL_MASK;
-                                pad->out_value = ret;
-                        }
+                        if (ret < 0)
+                                return;
+
+                        ret &= PMIC_MPP_REG_RT_STS_VAL_MASK;
+                        pad->out_value = ret;
                 }
 
                 seq_printf(s, " %-4s", pad->output_enabled ? "out" : "in");
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
index 8f36c5f91949..211b942ad6d5 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
@@ -370,6 +370,7 @@ static int pmic_mpp_set_mux(struct pinctrl_dev *pctldev, unsigned function,
                 }
         }
 
+        val = val << PMIC_MPP_REG_MODE_DIR_SHIFT;
         val |= pad->function << PMIC_MPP_REG_MODE_FUNCTION_SHIFT;
         val |= pad->out_value & PMIC_MPP_REG_MODE_VALUE_MASK;
 
@@ -576,10 +577,11 @@ static void pmic_mpp_config_dbg_show(struct pinctrl_dev *pctldev,
 
                 if (pad->input_enabled) {
                         ret = pmic_mpp_read(state, pad, PMIC_MPP_REG_RT_STS);
-                        if (!ret) {
-                                ret &= PMIC_MPP_REG_RT_STS_VAL_MASK;
-                                pad->out_value = ret;
-                        }
+                        if (ret < 0)
+                                return;
+
+                        ret &= PMIC_MPP_REG_RT_STS_VAL_MASK;
+                        pad->out_value = ret;
                 }
 
                 seq_printf(s, " %-4s", pad->output_enabled ? "out" : "in");
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index b3d419a84723..b496db87bc05 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -830,6 +830,13 @@ static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data)
  */
 static const struct dmi_system_id no_hw_rfkill_list[] = {
         {
+                .ident = "Lenovo G40-30",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                        DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo G40-30"),
+                },
+        },
+        {
                 .ident = "Lenovo Yoga 2 11 / 13 / Pro",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 7769575345d8..9bb9ad6d4a1b 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -2115,7 +2115,7 @@ static int hotkey_mask_get(void)
         return 0;
 }
 
-void static hotkey_mask_warn_incomplete_mask(void)
+static void hotkey_mask_warn_incomplete_mask(void)
 {
         /* log only what the user can fix... */
         const u32 wantedmask = hotkey_driver_mask &
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 6149ae01e11f..0fe4ad8826b2 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -164,6 +164,16 @@ config RTC_DRV_ABB5ZES3
           This driver can also be built as a module. If so, the module
           will be called rtc-ab-b5ze-s3.
 
+config RTC_DRV_ABX80X
+        tristate "Abracon ABx80x"
+        help
+          If you say yes here you get support for Abracon AB080X and AB180X
+          families of ultra-low-power  battery- and capacitor-backed real-time
+          clock chips.
+
+          This driver can also be built as a module. If so, the module
+          will be called rtc-abx80x.
+
 config RTC_DRV_AS3722
         tristate "ams AS3722 RTC driver"
         depends on MFD_AS3722
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index c31731c29762..2b82e2b0311b 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_RTC_DRV_88PM80X)	+= rtc-88pm80x.o
 obj-$(CONFIG_RTC_DRV_AB3100)    += rtc-ab3100.o
 obj-$(CONFIG_RTC_DRV_AB8500)    += rtc-ab8500.o
 obj-$(CONFIG_RTC_DRV_ABB5ZES3)  += rtc-ab-b5ze-s3.o
+obj-$(CONFIG_RTC_DRV_ABX80X)    += rtc-abx80x.o
 obj-$(CONFIG_RTC_DRV_ARMADA38X) += rtc-armada38x.o
 obj-$(CONFIG_RTC_DRV_AS3722)    += rtc-as3722.o
 obj-$(CONFIG_RTC_DRV_AT32AP700X)+= rtc-at32ap700x.o
diff --git a/drivers/rtc/rtc-abx80x.c b/drivers/rtc/rtc-abx80x.c
new file mode 100644
index 000000000000..4337c3bc6ace
--- /dev/null
+++ b/drivers/rtc/rtc-abx80x.c
@@ -0,0 +1,307 @@
+/*
+ * A driver for the I2C members of the Abracon AB x8xx RTC family,
+ * and compatible: AB 1805 and AB 0805
+ *
+ * Copyright 2014-2015 Macq S.A.
+ *
+ * Author: Philippe De Muyter <phdm@macqel.be>
+ * Author: Alexandre Belloni <alexandre.belloni@free-electrons.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.
+ *
+ */
+
+#include <linux/bcd.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/rtc.h>
+
+#define ABX8XX_REG_HTH          0x00
+#define ABX8XX_REG_SC           0x01
+#define ABX8XX_REG_MN           0x02
+#define ABX8XX_REG_HR           0x03
+#define ABX8XX_REG_DA           0x04
+#define ABX8XX_REG_MO           0x05
+#define ABX8XX_REG_YR           0x06
+#define ABX8XX_REG_WD           0x07
+
+#define ABX8XX_REG_CTRL1        0x10
+#define ABX8XX_CTRL_WRITE       BIT(1)
+#define ABX8XX_CTRL_12_24       BIT(6)
+
+#define ABX8XX_REG_CFG_KEY      0x1f
+#define ABX8XX_CFG_KEY_MISC     0x9d
+
+#define ABX8XX_REG_ID0          0x28
+
+#define ABX8XX_REG_TRICKLE      0x20
+#define ABX8XX_TRICKLE_CHARGE_ENABLE    0xa0
+#define ABX8XX_TRICKLE_STANDARD_DIODE   0x8
+#define ABX8XX_TRICKLE_SCHOTTKY_DIODE   0x4
+
+static u8 trickle_resistors[] = {0, 3, 6, 11};
+
+enum abx80x_chip {AB0801, AB0803, AB0804, AB0805,
+        AB1801, AB1803, AB1804, AB1805, ABX80X};
+
+struct abx80x_cap {
+        u16 pn;
+        bool has_tc;
+};
+
+static struct abx80x_cap abx80x_caps[] = {
+        [AB0801] = {.pn = 0x0801},
+        [AB0803] = {.pn = 0x0803},
+        [AB0804] = {.pn = 0x0804, .has_tc = true},
+        [AB0805] = {.pn = 0x0805, .has_tc = true},
+        [AB1801] = {.pn = 0x1801},
+        [AB1803] = {.pn = 0x1803},
+        [AB1804] = {.pn = 0x1804, .has_tc = true},
+        [AB1805] = {.pn = 0x1805, .has_tc = true},
+        [ABX80X] = {.pn = 0}
+};
+
+static struct i2c_driver abx80x_driver;
+
+static int abx80x_enable_trickle_charger(struct i2c_client *client,
+                                         u8 trickle_cfg)
+{
+        int err;
+
+        /*
+         * Write the configuration key register to enable access to the Trickle
+         * register
+         */
+        err = i2c_smbus_write_byte_data(client, ABX8XX_REG_CFG_KEY,
+                                        ABX8XX_CFG_KEY_MISC);
+        if (err < 0) {
+                dev_err(&client->dev, "Unable to write configuration key\n");
+                return -EIO;
+        }
+
+        err = i2c_smbus_write_byte_data(client, ABX8XX_REG_TRICKLE,
+                                        ABX8XX_TRICKLE_CHARGE_ENABLE |
+                                        trickle_cfg);
+        if (err < 0) {
+                dev_err(&client->dev, "Unable to write trickle register\n");
+                return -EIO;
+        }
+
+        return 0;
+}
+
+static int abx80x_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        unsigned char buf[8];
+        int err;
+
+        err = i2c_smbus_read_i2c_block_data(client, ABX8XX_REG_HTH,
+                                            sizeof(buf), buf);
+        if (err < 0) {
+                dev_err(&client->dev, "Unable to read date\n");
+                return -EIO;
+        }
+
+        tm->tm_sec = bcd2bin(buf[ABX8XX_REG_SC] & 0x7F);
+        tm->tm_min = bcd2bin(buf[ABX8XX_REG_MN] & 0x7F);
+        tm->tm_hour = bcd2bin(buf[ABX8XX_REG_HR] & 0x3F);
+        tm->tm_wday = buf[ABX8XX_REG_WD] & 0x7;
+        tm->tm_mday = bcd2bin(buf[ABX8XX_REG_DA] & 0x3F);
+        tm->tm_mon = bcd2bin(buf[ABX8XX_REG_MO] & 0x1F) - 1;
+        tm->tm_year = bcd2bin(buf[ABX8XX_REG_YR]) + 100;
+
+        err = rtc_valid_tm(tm);
+        if (err < 0)
+                dev_err(&client->dev, "retrieved date/time is not valid.\n");
+
+        return err;
+}
+
+static int abx80x_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        unsigned char buf[8];
+        int err;
+
+        if (tm->tm_year < 100)
+                return -EINVAL;
+
+        buf[ABX8XX_REG_HTH] = 0;
+        buf[ABX8XX_REG_SC] = bin2bcd(tm->tm_sec);
+        buf[ABX8XX_REG_MN] = bin2bcd(tm->tm_min);
+        buf[ABX8XX_REG_HR] = bin2bcd(tm->tm_hour);
+        buf[ABX8XX_REG_DA] = bin2bcd(tm->tm_mday);
+        buf[ABX8XX_REG_MO] = bin2bcd(tm->tm_mon + 1);
+        buf[ABX8XX_REG_YR] = bin2bcd(tm->tm_year - 100);
+        buf[ABX8XX_REG_WD] = tm->tm_wday;
+
+        err = i2c_smbus_write_i2c_block_data(client, ABX8XX_REG_HTH,
+                                             sizeof(buf), buf);
+        if (err < 0) {
+                dev_err(&client->dev, "Unable to write to date registers\n");
+                return -EIO;
+        }
+
+        return 0;
+}
+
+static const struct rtc_class_ops abx80x_rtc_ops = {
+        .read_time      = abx80x_rtc_read_time,
+        .set_time       = abx80x_rtc_set_time,
+};
+
+static int abx80x_dt_trickle_cfg(struct device_node *np)
+{
+        const char *diode;
+        int trickle_cfg = 0;
+        int i, ret;
+        u32 tmp;
+
+        ret = of_property_read_string(np, "abracon,tc-diode", &diode);
+        if (ret)
+                return ret;
+
+        if (!strcmp(diode, "standard"))
+                trickle_cfg |= ABX8XX_TRICKLE_STANDARD_DIODE;
+        else if (!strcmp(diode, "schottky"))
+                trickle_cfg |= ABX8XX_TRICKLE_SCHOTTKY_DIODE;
+        else
+                return -EINVAL;
+
+        ret = of_property_read_u32(np, "abracon,tc-resistor", &tmp);
+        if (ret)
+                return ret;
+
+        for (i = 0; i < sizeof(trickle_resistors); i++)
+                if (trickle_resistors[i] == tmp)
+                        break;
+
+        if (i == sizeof(trickle_resistors))
+                return -EINVAL;
+
+        return (trickle_cfg | i);
+}
+
+static int abx80x_probe(struct i2c_client *client,
+                        const struct i2c_device_id *id)
+{
+        struct device_node *np = client->dev.of_node;
+        struct rtc_device *rtc;
+        int i, data, err, trickle_cfg = -EINVAL;
+        char buf[7];
+        unsigned int part = id->driver_data;
+        unsigned int partnumber;
+        unsigned int majrev, minrev;
+        unsigned int lot;
+        unsigned int wafer;
+        unsigned int uid;
+
+        if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+                return -ENODEV;
+
+        err = i2c_smbus_read_i2c_block_data(client, ABX8XX_REG_ID0,
+                                            sizeof(buf), buf);
+        if (err < 0) {
+                dev_err(&client->dev, "Unable to read partnumber\n");
+                return -EIO;
+        }
+
+        partnumber = (buf[0] << 8) | buf[1];
+        majrev = buf[2] >> 3;
+        minrev = buf[2] & 0x7;
+        lot = ((buf[4] & 0x80) << 2) | ((buf[6] & 0x80) << 1) | buf[3];
+        uid = ((buf[4] & 0x7f) << 8) | buf[5];
+        wafer = (buf[6] & 0x7c) >> 2;
+        dev_info(&client->dev, "model %04x, revision %u.%u, lot %x, wafer %x, uid %x\n",
+                 partnumber, majrev, minrev, lot, wafer, uid);
+
+        data = i2c_smbus_read_byte_data(client, ABX8XX_REG_CTRL1);
+        if (data < 0) {
+                dev_err(&client->dev, "Unable to read control register\n");
+                return -EIO;
+        }
+
+        err = i2c_smbus_write_byte_data(client, ABX8XX_REG_CTRL1,
+                                        ((data & ~ABX8XX_CTRL_12_24) |
+                                         ABX8XX_CTRL_WRITE));
+        if (err < 0) {
+                dev_err(&client->dev, "Unable to write control register\n");
+                return -EIO;
+        }
+
+        /* part autodetection */
+        if (part == ABX80X) {
+                for (i = 0; abx80x_caps[i].pn; i++)
+                        if (partnumber == abx80x_caps[i].pn)
+                                break;
+                if (abx80x_caps[i].pn == 0) {
+                        dev_err(&client->dev, "Unknown part: %04x\n",
+                                partnumber);
+                        return -EINVAL;
+                }
+                part = i;
+        }
+
+        if (partnumber != abx80x_caps[part].pn) {
+                dev_err(&client->dev, "partnumber mismatch %04x != %04x\n",
+                        partnumber, abx80x_caps[part].pn);
+                return -EINVAL;
+        }
+
+        if (np && abx80x_caps[part].has_tc)
+                trickle_cfg = abx80x_dt_trickle_cfg(np);
+
+        if (trickle_cfg > 0) {
+                dev_info(&client->dev, "Enabling trickle charger: %02x\n",
+                         trickle_cfg);
+                abx80x_enable_trickle_charger(client, trickle_cfg);
+        }
+
+        rtc = devm_rtc_device_register(&client->dev, abx80x_driver.driver.name,
+                                       &abx80x_rtc_ops, THIS_MODULE);
+
+        if (IS_ERR(rtc))
+                return PTR_ERR(rtc);
+
+        i2c_set_clientdata(client, rtc);
+
+        return 0;
+}
+
+static int abx80x_remove(struct i2c_client *client)
+{
+        return 0;
+}
+
+static const struct i2c_device_id abx80x_id[] = {
+        { "abx80x", ABX80X },
+        { "ab0801", AB0801 },
+        { "ab0803", AB0803 },
+        { "ab0804", AB0804 },
+        { "ab0805", AB0805 },
+        { "ab1801", AB1801 },
+        { "ab1803", AB1803 },
+        { "ab1804", AB1804 },
+        { "ab1805", AB1805 },
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, abx80x_id);
+
+static struct i2c_driver abx80x_driver = {
+        .driver         = {
+                .name   = "rtc-abx80x",
+        },
+        .probe          = abx80x_probe,
+        .remove         = abx80x_remove,
+        .id_table       = abx80x_id,
+};
+
+module_i2c_driver(abx80x_driver);
+
+MODULE_AUTHOR("Philippe De Muyter <phdm@macqel.be>");
+MODULE_AUTHOR("Alexandre Belloni <alexandre.belloni@free-electrons.com>");
+MODULE_DESCRIPTION("Abracon ABX80X RTC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/rtc/rtc-armada38x.c b/drivers/rtc/rtc-armada38x.c
index 43e04af39e09..cb70ced7e0db 100644
--- a/drivers/rtc/rtc-armada38x.c
+++ b/drivers/rtc/rtc-armada38x.c
@@ -40,6 +40,13 @@ struct armada38x_rtc {
         void __iomem        *regs;
         void __iomem        *regs_soc;
         spinlock_t          lock;
+        /*
+         * While setting the time, the RTC TIME register should not be
+         * accessed. Setting the RTC time involves sleeping during
+         * 100ms, so a mutex instead of a spinlock is used to protect
+         * it
+         */
+        struct mutex        mutex_time;
         int                 irq;
 };
 
@@ -59,8 +66,7 @@ static int armada38x_rtc_read_time(struct device *dev, struct rtc_time *tm)
         struct armada38x_rtc *rtc = dev_get_drvdata(dev);
         unsigned long time, time_check, flags;
 
-        spin_lock_irqsave(&rtc->lock, flags);
-
+        mutex_lock(&rtc->mutex_time);
         time = readl(rtc->regs + RTC_TIME);
         /*
          * WA for failing time set attempts. As stated in HW ERRATA if
@@ -71,7 +77,7 @@ static int armada38x_rtc_read_time(struct device *dev, struct rtc_time *tm)
         if ((time_check - time) > 1)
                 time_check = readl(rtc->regs + RTC_TIME);
 
-        spin_unlock_irqrestore(&rtc->lock, flags);
+        mutex_unlock(&rtc->mutex_time);
 
         rtc_time_to_tm(time_check, tm);
 
@@ -94,19 +100,12 @@ static int armada38x_rtc_set_time(struct device *dev, struct rtc_time *tm)
          * then wait for 100ms before writing to the time register to be
          * sure that the data will be taken into account.
          */
-        spin_lock_irqsave(&rtc->lock, flags);
-
+        mutex_lock(&rtc->mutex_time);
         rtc_delayed_write(0, rtc, RTC_STATUS);
-
-        spin_unlock_irqrestore(&rtc->lock, flags);
-
         msleep(100);
-
-        spin_lock_irqsave(&rtc->lock, flags);
-
         rtc_delayed_write(time, rtc, RTC_TIME);
+        mutex_unlock(&rtc->mutex_time);
 
-        spin_unlock_irqrestore(&rtc->lock, flags);
 out:
         return ret;
 }
@@ -230,6 +229,7 @@ static __init int armada38x_rtc_probe(struct platform_device *pdev)
                 return -ENOMEM;
 
         spin_lock_init(&rtc->lock);
+        mutex_init(&rtc->mutex_time);
 
         res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rtc");
         rtc->regs = devm_ioremap_resource(&pdev->dev, res);
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index c43aca69fb30..0fc3fe5fd5b8 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -667,6 +667,8 @@ static struct raw3215_info *raw3215_alloc_info(void)
         info->buffer = kzalloc(RAW3215_BUFFER_SIZE, GFP_KERNEL | GFP_DMA);
         info->inbuf = kzalloc(RAW3215_INBUF_SIZE, GFP_KERNEL | GFP_DMA);
         if (!info->buffer || !info->inbuf) {
+                kfree(info->inbuf);
+                kfree(info->buffer);
                 kfree(info);
                 return NULL;
         }
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 7600639db4c4..add419d6ff34 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -149,7 +149,6 @@ static int twa_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset);
 static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Entry *sglistarg);
 static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int request_id);
 static char *twa_string_lookup(twa_message_type *table, unsigned int aen_code);
-static void twa_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id);
 
 /* Functions */
 
@@ -1340,11 +1339,11 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance)
                                 }
 
                                 /* Now complete the io */
+                                scsi_dma_unmap(cmd);
+                                cmd->scsi_done(cmd);
                                 tw_dev->state[request_id] = TW_S_COMPLETED;
                                 twa_free_request_id(tw_dev, request_id);
                                 tw_dev->posted_request_count--;
-                                tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
-                                twa_unmap_scsi_data(tw_dev, request_id);
                         }
 
                         /* Check for valid status after each drain */
@@ -1402,26 +1401,6 @@ static void twa_load_sgl(TW_Device_Extension *tw_dev, TW_Command_Full *full_comm
         }
 } /* End twa_load_sgl() */
 
-/* This function will perform a pci-dma mapping for a scatter gather list */
-static int twa_map_scsi_sg_data(TW_Device_Extension *tw_dev, int request_id)
-{
-        int use_sg;
-        struct scsi_cmnd *cmd = tw_dev->srb[request_id];
-
-        use_sg = scsi_dma_map(cmd);
-        if (!use_sg)
-                return 0;
-        else if (use_sg < 0) {
-                TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1c, "Failed to map scatter gather list");
-                return 0;
-        }
-
-        cmd->SCp.phase = TW_PHASE_SGLIST;
-        cmd->SCp.have_data_in = use_sg;
-
-        return use_sg;
-} /* End twa_map_scsi_sg_data() */
-
 /* This function will poll for a response interrupt of a request */
 static int twa_poll_response(TW_Device_Extension *tw_dev, int request_id, int seconds)
 {
@@ -1600,9 +1579,11 @@ static int twa_reset_device_extension(TW_Device_Extension *tw_dev)
                     (tw_dev->state[i] != TW_S_INITIAL) &&
                     (tw_dev->state[i] != TW_S_COMPLETED)) {
                         if (tw_dev->srb[i]) {
-                                tw_dev->srb[i]->result = (DID_RESET << 16);
-                                tw_dev->srb[i]->scsi_done(tw_dev->srb[i]);
-                                twa_unmap_scsi_data(tw_dev, i);
+                                struct scsi_cmnd *cmd = tw_dev->srb[i];
+
+                                cmd->result = (DID_RESET << 16);
+                                scsi_dma_unmap(cmd);
+                                cmd->scsi_done(cmd);
                         }
                 }
         }
@@ -1781,21 +1762,18 @@ static int twa_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_
         /* Save the scsi command for use by the ISR */
         tw_dev->srb[request_id] = SCpnt;
 
-        /* Initialize phase to zero */
-        SCpnt->SCp.phase = TW_PHASE_INITIAL;
-
         retval = twa_scsiop_execute_scsi(tw_dev, request_id, NULL, 0, NULL);
         switch (retval) {
         case SCSI_MLQUEUE_HOST_BUSY:
+                scsi_dma_unmap(SCpnt);
                 twa_free_request_id(tw_dev, request_id);
-                twa_unmap_scsi_data(tw_dev, request_id);
                 break;
         case 1:
-                tw_dev->state[request_id] = TW_S_COMPLETED;
-                twa_free_request_id(tw_dev, request_id);
-                twa_unmap_scsi_data(tw_dev, request_id);
                 SCpnt->result = (DID_ERROR << 16);
+                scsi_dma_unmap(SCpnt);
                 done(SCpnt);
+                tw_dev->state[request_id] = TW_S_COMPLETED;
+                twa_free_request_id(tw_dev, request_id);
                 retval = 0;
         }
 out:
@@ -1863,8 +1841,8 @@ static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id,
                                 command_packet->sg_list[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]);
                                 command_packet->sg_list[0].length = cpu_to_le32(TW_MIN_SGL_LENGTH);
                         } else {
-                                sg_count = twa_map_scsi_sg_data(tw_dev, request_id);
-                                if (sg_count == 0)
+                                sg_count = scsi_dma_map(srb);
+                                if (sg_count < 0)
                                         goto out;
 
                                 scsi_for_each_sg(srb, sg, sg_count, i) {
@@ -1979,15 +1957,6 @@ static char *twa_string_lookup(twa_message_type *table, unsigned int code)
         return(table[index].text);
 } /* End twa_string_lookup() */
 
-/* This function will perform a pci-dma unmap */
-static void twa_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id)
-{
-        struct scsi_cmnd *cmd = tw_dev->srb[request_id];
-
-        if (cmd->SCp.phase == TW_PHASE_SGLIST)
-                scsi_dma_unmap(cmd);
-} /* End twa_unmap_scsi_data() */
-
 /* This function gets called when a disk is coming on-line */
 static int twa_slave_configure(struct scsi_device *sdev)
 {
diff --git a/drivers/scsi/3w-9xxx.h b/drivers/scsi/3w-9xxx.h
index 040f7214e5b7..0fdc83cfa0e1 100644
--- a/drivers/scsi/3w-9xxx.h
+++ b/drivers/scsi/3w-9xxx.h
@@ -324,11 +324,6 @@ static twa_message_type twa_error_table[] = {
 #define TW_CURRENT_DRIVER_BUILD 0
 #define TW_CURRENT_DRIVER_BRANCH 0
 
-/* Phase defines */
-#define TW_PHASE_INITIAL 0
-#define TW_PHASE_SINGLE  1
-#define TW_PHASE_SGLIST  2
-
 /* Misc defines */
 #define TW_9550SX_DRAIN_COMPLETED             0xFFFF
 #define TW_SECTOR_SIZE                        512
diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
index 2361772d5909..f8374850f714 100644
--- a/drivers/scsi/3w-sas.c
+++ b/drivers/scsi/3w-sas.c
@@ -290,26 +290,6 @@ static int twl_post_command_packet(TW_Device_Extension *tw_dev, int request_id)
         return 0;
 } /* End twl_post_command_packet() */
 
-/* This function will perform a pci-dma mapping for a scatter gather list */
-static int twl_map_scsi_sg_data(TW_Device_Extension *tw_dev, int request_id)
-{
-        int use_sg;
-        struct scsi_cmnd *cmd = tw_dev->srb[request_id];
-
-        use_sg = scsi_dma_map(cmd);
-        if (!use_sg)
-                return 0;
-        else if (use_sg < 0) {
-                TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1, "Failed to map scatter gather list");
-                return 0;
-        }
-
-        cmd->SCp.phase = TW_PHASE_SGLIST;
-        cmd->SCp.have_data_in = use_sg;
-
-        return use_sg;
-} /* End twl_map_scsi_sg_data() */
-
 /* This function hands scsi cdb's to the firmware */
 static int twl_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Entry_ISO *sglistarg)
 {
@@ -357,8 +337,8 @@ static int twl_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id,
         if (!sglistarg) {
                 /* Map sglist from scsi layer to cmd packet */
                 if (scsi_sg_count(srb)) {
-                        sg_count = twl_map_scsi_sg_data(tw_dev, request_id);
-                        if (sg_count == 0)
+                        sg_count = scsi_dma_map(srb);
+                        if (sg_count <= 0)
                                 goto out;
 
                         scsi_for_each_sg(srb, sg, sg_count, i) {
@@ -1102,15 +1082,6 @@ out:
         return retval;
 } /* End twl_initialize_device_extension() */
 
-/* This function will perform a pci-dma unmap */
-static void twl_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id)
-{
-        struct scsi_cmnd *cmd = tw_dev->srb[request_id];
-
-        if (cmd->SCp.phase == TW_PHASE_SGLIST)
-                scsi_dma_unmap(cmd);
-} /* End twl_unmap_scsi_data() */
-
 /* This function will handle attention interrupts */
 static int twl_handle_attention_interrupt(TW_Device_Extension *tw_dev)
 {
@@ -1251,11 +1222,11 @@ static irqreturn_t twl_interrupt(int irq, void *dev_instance)
                         }
 
                         /* Now complete the io */
+                        scsi_dma_unmap(cmd);
+                        cmd->scsi_done(cmd);
                         tw_dev->state[request_id] = TW_S_COMPLETED;
                         twl_free_request_id(tw_dev, request_id);
                         tw_dev->posted_request_count--;
-                        tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
-                        twl_unmap_scsi_data(tw_dev, request_id);
                 }
 
                 /* Check for another response interrupt */
@@ -1400,10 +1371,12 @@ static int twl_reset_device_extension(TW_Device_Extension *tw_dev, int ioctl_res
                 if ((tw_dev->state[i] != TW_S_FINISHED) &&
                     (tw_dev->state[i] != TW_S_INITIAL) &&
                     (tw_dev->state[i] != TW_S_COMPLETED)) {
-                        if (tw_dev->srb[i]) {
-                                tw_dev->srb[i]->result = (DID_RESET << 16);
-                                tw_dev->srb[i]->scsi_done(tw_dev->srb[i]);
-                                twl_unmap_scsi_data(tw_dev, i);
+                        struct scsi_cmnd *cmd = tw_dev->srb[i];
+
+                        if (cmd) {
+                                cmd->result = (DID_RESET << 16);
+                                scsi_dma_unmap(cmd);
+                                cmd->scsi_done(cmd);
                         }
                 }
         }
@@ -1507,9 +1480,6 @@ static int twl_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_
         /* Save the scsi command for use by the ISR */
         tw_dev->srb[request_id] = SCpnt;
 
-        /* Initialize phase to zero */
-        SCpnt->SCp.phase = TW_PHASE_INITIAL;
-
         retval = twl_scsiop_execute_scsi(tw_dev, request_id, NULL, 0, NULL);
         if (retval) {
                 tw_dev->state[request_id] = TW_S_COMPLETED;
diff --git a/drivers/scsi/3w-sas.h b/drivers/scsi/3w-sas.h
index d474892701d4..fec6449c7595 100644
--- a/drivers/scsi/3w-sas.h
+++ b/drivers/scsi/3w-sas.h
@@ -103,10 +103,6 @@ static char *twl_aen_severity_table[] =
 #define TW_CURRENT_DRIVER_BUILD 0
 #define TW_CURRENT_DRIVER_BRANCH 0
 
-/* Phase defines */
-#define TW_PHASE_INITIAL 0
-#define TW_PHASE_SGLIST  2
-
 /* Misc defines */
 #define TW_SECTOR_SIZE                        512
 #define TW_MAX_UNITS                          32
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index c75f2048319f..2940bd769936 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -1271,32 +1271,6 @@ static int tw_initialize_device_extension(TW_Device_Extension *tw_dev)
         return 0;
 } /* End tw_initialize_device_extension() */
 
-static int tw_map_scsi_sg_data(struct pci_dev *pdev, struct scsi_cmnd *cmd)
-{
-        int use_sg;
-
-        dprintk(KERN_WARNING "3w-xxxx: tw_map_scsi_sg_data()\n");
-
-        use_sg = scsi_dma_map(cmd);
-        if (use_sg < 0) {
-                printk(KERN_WARNING "3w-xxxx: tw_map_scsi_sg_data(): pci_map_sg() failed.\n");
-                return 0;
-        }
-
-        cmd->SCp.phase = TW_PHASE_SGLIST;
-        cmd->SCp.have_data_in = use_sg;
-
-        return use_sg;
-} /* End tw_map_scsi_sg_data() */
-
-static void tw_unmap_scsi_data(struct pci_dev *pdev, struct scsi_cmnd *cmd)
-{
-        dprintk(KERN_WARNING "3w-xxxx: tw_unmap_scsi_data()\n");
-
-        if (cmd->SCp.phase == TW_PHASE_SGLIST)
-                scsi_dma_unmap(cmd);
-} /* End tw_unmap_scsi_data() */
-
 /* This function will reset a device extension */
 static int tw_reset_device_extension(TW_Device_Extension *tw_dev)
 {
@@ -1319,8 +1293,8 @@ static int tw_reset_device_extension(TW_Device_Extension *tw_dev)
                         srb = tw_dev->srb[i];
                         if (srb != NULL) {
                                 srb->result = (DID_RESET << 16);
-                                tw_dev->srb[i]->scsi_done(tw_dev->srb[i]);
-                                tw_unmap_scsi_data(tw_dev->tw_pci_dev, tw_dev->srb[i]);
+                                scsi_dma_unmap(srb);
+                                srb->scsi_done(srb);
                         }
                 }
         }
@@ -1767,8 +1741,8 @@ static int tw_scsiop_read_write(TW_Device_Extension *tw_dev, int request_id)
         command_packet->byte8.io.lba = lba;
         command_packet->byte6.block_count = num_sectors;
 
-        use_sg = tw_map_scsi_sg_data(tw_dev->tw_pci_dev, tw_dev->srb[request_id]);
-        if (!use_sg)
+        use_sg = scsi_dma_map(srb);
+        if (use_sg <= 0)
                 return 1;
 
         scsi_for_each_sg(tw_dev->srb[request_id], sg, use_sg, i) {
@@ -1955,9 +1929,6 @@ static int tw_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_c
         /* Save the scsi command for use by the ISR */
         tw_dev->srb[request_id] = SCpnt;
 
-        /* Initialize phase to zero */
-        SCpnt->SCp.phase = TW_PHASE_INITIAL;
-
         switch (*command) {
                 case READ_10:
                 case READ_6:
@@ -2185,12 +2156,11 @@ static irqreturn_t tw_interrupt(int irq, void *dev_instance)
 
                                 /* Now complete the io */
                                 if ((error != TW_ISR_DONT_COMPLETE)) {
+                                        scsi_dma_unmap(tw_dev->srb[request_id]);
+                                        tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
                                         tw_dev->state[request_id] = TW_S_COMPLETED;
                                         tw_state_request_finish(tw_dev, request_id);
                                         tw_dev->posted_request_count--;
-                                        tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
-                                        
-                                        tw_unmap_scsi_data(tw_dev->tw_pci_dev, tw_dev->srb[request_id]);
                                 }
                         }
                                 
diff --git a/drivers/scsi/3w-xxxx.h b/drivers/scsi/3w-xxxx.h
index 29b0b84ed69e..6f65e663d393 100644
--- a/drivers/scsi/3w-xxxx.h
+++ b/drivers/scsi/3w-xxxx.h
@@ -195,11 +195,6 @@ static unsigned char tw_sense_table[][4] =
 #define TW_AEN_SMART_FAIL        0x000F
 #define TW_AEN_SBUF_FAIL         0x0024
 
-/* Phase defines */
-#define TW_PHASE_INITIAL 0
-#define TW_PHASE_SINGLE 1
-#define TW_PHASE_SGLIST 2
-
 /* Misc defines */
 #define TW_ALIGNMENT_6000                     64 /* 64 bytes */
 #define TW_ALIGNMENT_7000                     4  /* 4 bytes */
diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c
index ec432763a29a..b95d2779f467 100644
--- a/drivers/scsi/aha1542.c
+++ b/drivers/scsi/aha1542.c
@@ -375,9 +375,10 @@ static int aha1542_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
         u8 lun = cmd->device->lun;
         unsigned long flags;
         int bufflen = scsi_bufflen(cmd);
-        int mbo;
+        int mbo, sg_count;
         struct mailbox *mb = aha1542->mb;
         struct ccb *ccb = aha1542->ccb;
+        struct chain *cptr;
 
         if (*cmd->cmnd == REQUEST_SENSE) {
                 /* Don't do the command - we have the sense data already */
@@ -397,6 +398,13 @@ static int aha1542_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
                 print_hex_dump_bytes("command: ", DUMP_PREFIX_NONE, cmd->cmnd, cmd->cmd_len);
         }
 #endif
+        if (bufflen) {  /* allocate memory before taking host_lock */
+                sg_count = scsi_sg_count(cmd);
+                cptr = kmalloc(sizeof(*cptr) * sg_count, GFP_KERNEL | GFP_DMA);
+                if (!cptr)
+                        return SCSI_MLQUEUE_HOST_BUSY;
+        }
+
         /* Use the outgoing mailboxes in a round-robin fashion, because this
            is how the host adapter will scan for them */
 
@@ -441,19 +449,10 @@ static int aha1542_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
 
         if (bufflen) {
                 struct scatterlist *sg;
-                struct chain *cptr;
-                int i, sg_count = scsi_sg_count(cmd);
+                int i;
 
                 ccb[mbo].op = 2;        /* SCSI Initiator Command  w/scatter-gather */
-                cmd->host_scribble = kmalloc(sizeof(*cptr)*sg_count,
-                                                         GFP_KERNEL | GFP_DMA);
-                cptr = (struct chain *) cmd->host_scribble;
-                if (cptr == NULL) {
-                        /* free the claimed mailbox slot */
-                        aha1542->int_cmds[mbo] = NULL;
-                        spin_unlock_irqrestore(sh->host_lock, flags);
-                        return SCSI_MLQUEUE_HOST_BUSY;
-                }
+                cmd->host_scribble = (void *)cptr;
                 scsi_for_each_sg(cmd, sg, sg_count, i) {
                         any2scsi(cptr[i].dataptr, isa_page_to_bus(sg_page(sg))
                                                                 + sg->offset);
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index 262ab837a704..9f77d23239a2 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -226,6 +226,7 @@ static struct {
         {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
         {"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC},
         {"Promise", "", NULL, BLIST_SPARSELUN},
+        {"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024},
         {"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
         {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
         {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 60aae01caa89..6efab1c455e1 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -897,6 +897,12 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
          */
         if (*bflags & BLIST_MAX_512)
                 blk_queue_max_hw_sectors(sdev->request_queue, 512);
+        /*
+         * Max 1024 sector transfer length for targets that report incorrect
+         * max/optimal lengths and relied on the old block layer safe default
+         */
+        else if (*bflags & BLIST_MAX_1024)
+                blk_queue_max_hw_sectors(sdev->request_queue, 1024);
 
         /*
          * Some devices may not want to have a start command automatically
diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c
index cd4c293f0dd0..fe8875f0d7be 100644
--- a/drivers/sh/pm_runtime.c
+++ b/drivers/sh/pm_runtime.c
@@ -80,9 +80,10 @@ static int __init sh_pm_runtime_init(void)
         if (IS_ENABLED(CONFIG_ARCH_SHMOBILE_MULTI)) {
                 if (!of_machine_is_compatible("renesas,emev2") &&
                     !of_machine_is_compatible("renesas,r7s72100") &&
-                    !of_machine_is_compatible("renesas,r8a73a4") &&
 #ifndef CONFIG_PM_GENERIC_DOMAINS_OF
+                    !of_machine_is_compatible("renesas,r8a73a4") &&
                     !of_machine_is_compatible("renesas,r8a7740") &&
+                    !of_machine_is_compatible("renesas,sh73a0") &&
 #endif
                     !of_machine_is_compatible("renesas,r8a7778") &&
                     !of_machine_is_compatible("renesas,r8a7779") &&
@@ -90,9 +91,7 @@ static int __init sh_pm_runtime_init(void)
                     !of_machine_is_compatible("renesas,r8a7791") &&
                     !of_machine_is_compatible("renesas,r8a7792") &&
                     !of_machine_is_compatible("renesas,r8a7793") &&
-                    !of_machine_is_compatible("renesas,r8a7794") &&
-                    !of_machine_is_compatible("renesas,sh7372") &&
-                    !of_machine_is_compatible("renesas,sh73a0"))
+                    !of_machine_is_compatible("renesas,r8a7794"))
                         return 0;
         }
 
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 198f96b7fb45..72b059081559 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -78,6 +78,7 @@ config SPI_ATMEL
 config SPI_BCM2835
         tristate "BCM2835 SPI controller"
         depends on ARCH_BCM2835 || COMPILE_TEST
+        depends on GPIOLIB
         help
           This selects a driver for the Broadcom BCM2835 SPI master.
 
@@ -302,7 +303,7 @@ config SPI_FSL_SPI
 config SPI_FSL_DSPI
         tristate "Freescale DSPI controller"
         select REGMAP_MMIO
-        depends on SOC_VF610 || COMPILE_TEST
+        depends on SOC_VF610 || SOC_LS1021A || COMPILE_TEST
         help
           This enables support for the Freescale DSPI controller in master
           mode. VF610 platform uses the controller.
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index f63864a893c5..37875cf942f7 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -164,13 +164,12 @@ static int bcm2835_spi_transfer_one_poll(struct spi_master *master,
                                          unsigned long xfer_time_us)
 {
         struct bcm2835_spi *bs = spi_master_get_devdata(master);
-        unsigned long timeout = jiffies +
-                max(4 * xfer_time_us * HZ / 1000000, 2uL);
+        /* set timeout to 1 second of maximum polling */
+        unsigned long timeout = jiffies + HZ;
 
         /* enable HW block without interrupts */
         bcm2835_wr(bs, BCM2835_SPI_CS, cs | BCM2835_SPI_CS_TA);
 
-        /* set timeout to 4x the expected time, or 2 jiffies */
         /* loop until finished the transfer */
         while (bs->rx_len) {
                 /* read from fifo as much as possible */
diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index 5ef6638d5e8a..840a4984d365 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -180,7 +180,6 @@ int spi_bitbang_setup(struct spi_device *spi)
 {
         struct spi_bitbang_cs   *cs = spi->controller_state;
         struct spi_bitbang      *bitbang;
-        int                     retval;
         unsigned long           flags;
 
         bitbang = spi_master_get_devdata(spi->master);
@@ -197,9 +196,11 @@ int spi_bitbang_setup(struct spi_device *spi)
         if (!cs->txrx_word)
                 return -EINVAL;
 
-        retval = bitbang->setup_transfer(spi, NULL);
-        if (retval < 0)
-                return retval;
+        if (bitbang->setup_transfer) {
+                int retval = bitbang->setup_transfer(spi, NULL);
+                if (retval < 0)
+                        return retval;
+        }
 
         dev_dbg(&spi->dev, "%s, %u nsec/bit\n", __func__, 2 * cs->nsecs);
 
@@ -295,9 +296,11 @@ static int spi_bitbang_transfer_one(struct spi_master *master,
 
                 /* init (-1) or override (1) transfer params */
                 if (do_setup != 0) {
-                        status = bitbang->setup_transfer(spi, t);
-                        if (status < 0)
-                                break;
+                        if (bitbang->setup_transfer) {
+                                status = bitbang->setup_transfer(spi, t);
+                                if (status < 0)
+                                        break;
+                        }
                         if (do_setup == -1)
                                 do_setup = 0;
                 }
diff --git a/drivers/spi/spi-fsl-cpm.c b/drivers/spi/spi-fsl-cpm.c
index 9c46a3058743..896add8cfd3b 100644
--- a/drivers/spi/spi-fsl-cpm.c
+++ b/drivers/spi/spi-fsl-cpm.c
@@ -24,6 +24,7 @@
 #include <linux/of_address.h>
 #include <linux/spi/spi.h>
 #include <linux/types.h>
+#include <linux/platform_device.h>
 
 #include "spi-fsl-cpm.h"
 #include "spi-fsl-lib.h"
@@ -269,17 +270,6 @@ static unsigned long fsl_spi_cpm_get_pram(struct mpc8xxx_spi *mspi)
         if (mspi->flags & SPI_CPM2) {
                 pram_ofs = cpm_muram_alloc(SPI_PRAM_SIZE, 64);
                 out_be16(spi_base, pram_ofs);
-        } else {
-                struct spi_pram __iomem *pram = spi_base;
-                u16 rpbase = in_be16(&pram->rpbase);
-
-                /* Microcode relocation patch applied? */
-                if (rpbase) {
-                        pram_ofs = rpbase;
-                } else {
-                        pram_ofs = cpm_muram_alloc(SPI_PRAM_SIZE, 64);
-                        out_be16(spi_base, pram_ofs);
-                }
         }
 
         iounmap(spi_base);
@@ -292,7 +282,6 @@ int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi)
         struct device_node *np = dev->of_node;
         const u32 *iprop;
         int size;
-        unsigned long pram_ofs;
         unsigned long bds_ofs;
 
         if (!(mspi->flags & SPI_CPM_MODE))
@@ -319,8 +308,26 @@ int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi)
                 }
         }
 
-        pram_ofs = fsl_spi_cpm_get_pram(mspi);
-        if (IS_ERR_VALUE(pram_ofs)) {
+        if (mspi->flags & SPI_CPM1) {
+                struct resource *res;
+                void *pram;
+
+                res = platform_get_resource(to_platform_device(dev),
+                                            IORESOURCE_MEM, 1);
+                pram = devm_ioremap_resource(dev, res);
+                if (IS_ERR(pram))
+                        mspi->pram = NULL;
+                else
+                        mspi->pram = pram;
+        } else {
+                unsigned long pram_ofs = fsl_spi_cpm_get_pram(mspi);
+
+                if (IS_ERR_VALUE(pram_ofs))
+                        mspi->pram = NULL;
+                else
+                        mspi->pram = cpm_muram_addr(pram_ofs);
+        }
+        if (mspi->pram == NULL) {
                 dev_err(dev, "can't allocate spi parameter ram\n");
                 goto err_pram;
         }
@@ -346,8 +353,6 @@ int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi)
                 goto err_dummy_rx;
         }
 
-        mspi->pram = cpm_muram_addr(pram_ofs);
-
         mspi->tx_bd = cpm_muram_addr(bds_ofs);
         mspi->rx_bd = cpm_muram_addr(bds_ofs + sizeof(*mspi->tx_bd));
 
@@ -375,7 +380,8 @@ err_dummy_rx:
 err_dummy_tx:
         cpm_muram_free(bds_ofs);
 err_bds:
-        cpm_muram_free(pram_ofs);
+        if (!(mspi->flags & SPI_CPM1))
+                cpm_muram_free(cpm_muram_offset(mspi->pram));
 err_pram:
         fsl_spi_free_dummy_rx();
         return -ENOMEM;
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index d0a73a09a9bd..80d245ac846f 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -359,14 +359,16 @@ static void fsl_espi_rw_trans(struct spi_message *m,
                                 struct fsl_espi_transfer *trans, u8 *rx_buff)
 {
         struct fsl_espi_transfer *espi_trans = trans;
-        unsigned int n_tx = espi_trans->n_tx;
-        unsigned int n_rx = espi_trans->n_rx;
+        unsigned int total_len = espi_trans->len;
         struct spi_transfer *t;
         u8 *local_buf;
         u8 *rx_buf = rx_buff;
         unsigned int trans_len;
         unsigned int addr;
-        int i, pos, loop;
+        unsigned int tx_only;
+        unsigned int rx_pos = 0;
+        unsigned int pos;
+        int i, loop;
 
         local_buf = kzalloc(SPCOM_TRANLEN_MAX, GFP_KERNEL);
         if (!local_buf) {
@@ -374,36 +376,48 @@ static void fsl_espi_rw_trans(struct spi_message *m,
                 return;
         }
 
-        for (pos = 0, loop = 0; pos < n_rx; pos += trans_len, loop++) {
-                trans_len = n_rx - pos;
-                if (trans_len > SPCOM_TRANLEN_MAX - n_tx)
-                        trans_len = SPCOM_TRANLEN_MAX - n_tx;
+        for (pos = 0, loop = 0; pos < total_len; pos += trans_len, loop++) {
+                trans_len = total_len - pos;
 
                 i = 0;
+                tx_only = 0;
                 list_for_each_entry(t, &m->transfers, transfer_list) {
                         if (t->tx_buf) {
                                 memcpy(local_buf + i, t->tx_buf, t->len);
                                 i += t->len;
+                                if (!t->rx_buf)
+                                        tx_only += t->len;
                         }
                 }
 
+                /* Add additional TX bytes to compensate SPCOM_TRANLEN_MAX */
+                if (loop > 0)
+                        trans_len += tx_only;
+
+                if (trans_len > SPCOM_TRANLEN_MAX)
+                        trans_len = SPCOM_TRANLEN_MAX;
+
+                /* Update device offset */
                 if (pos > 0) {
                         addr = fsl_espi_cmd2addr(local_buf);
-                        addr += pos;
+                        addr += rx_pos;
                         fsl_espi_addr2cmd(addr, local_buf);
                 }
 
-                espi_trans->n_tx = n_tx;
-                espi_trans->n_rx = trans_len;
-                espi_trans->len = trans_len + n_tx;
+                espi_trans->len = trans_len;
                 espi_trans->tx_buf = local_buf;
                 espi_trans->rx_buf = local_buf;
                 fsl_espi_do_trans(m, espi_trans);
 
-                memcpy(rx_buf + pos, espi_trans->rx_buf + n_tx, trans_len);
+                /* If there is at least one RX byte then copy it to rx_buf */
+                if (tx_only < SPCOM_TRANLEN_MAX)
+                        memcpy(rx_buf + rx_pos, espi_trans->rx_buf + tx_only,
+                                        trans_len - tx_only);
+
+                rx_pos += trans_len - tx_only;
 
                 if (loop > 0)
-                        espi_trans->actual_length += espi_trans->len - n_tx;
+                        espi_trans->actual_length += espi_trans->len - tx_only;
                 else
                         espi_trans->actual_length += espi_trans->len;
         }
@@ -418,6 +432,7 @@ static int fsl_espi_do_one_msg(struct spi_master *master,
         u8 *rx_buf = NULL;
         unsigned int n_tx = 0;
         unsigned int n_rx = 0;
+        unsigned int xfer_len = 0;
         struct fsl_espi_transfer espi_trans;
 
         list_for_each_entry(t, &m->transfers, transfer_list) {
@@ -427,11 +442,13 @@ static int fsl_espi_do_one_msg(struct spi_master *master,
                         n_rx += t->len;
                         rx_buf = t->rx_buf;
                 }
+                if ((t->tx_buf) || (t->rx_buf))
+                        xfer_len += t->len;
         }
 
         espi_trans.n_tx = n_tx;
         espi_trans.n_rx = n_rx;
-        espi_trans.len = n_tx + n_rx;
+        espi_trans.len = xfer_len;
         espi_trans.actual_length = 0;
         espi_trans.status = 0;
 
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index 4df8942058de..d1a5b9fc3eba 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1210,6 +1210,7 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master,
         struct omap2_mcspi      *mcspi;
         struct omap2_mcspi_dma  *mcspi_dma;
         struct spi_transfer     *t;
+        int status;
 
         spi = m->spi;
         mcspi = spi_master_get_devdata(master);
@@ -1229,7 +1230,8 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master,
                                         tx_buf ? "tx" : "",
                                         rx_buf ? "rx" : "",
                                         t->bits_per_word);
-                        return -EINVAL;
+                        status = -EINVAL;
+                        goto out;
                 }
 
                 if (m->is_dma_mapped || len < DMA_MIN_BYTES)
@@ -1241,7 +1243,8 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master,
                         if (dma_mapping_error(mcspi->dev, t->tx_dma)) {
                                 dev_dbg(mcspi->dev, "dma %cX %d bytes error\n",
                                                 'T', len);
-                                return -EINVAL;
+                                status = -EINVAL;
+                                goto out;
                         }
                 }
                 if (mcspi_dma->dma_rx && rx_buf != NULL) {
@@ -1253,14 +1256,19 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master,
                                 if (tx_buf != NULL)
                                         dma_unmap_single(mcspi->dev, t->tx_dma,
                                                         len, DMA_TO_DEVICE);
-                                return -EINVAL;
+                                status = -EINVAL;
+                                goto out;
                         }
                 }
         }
 
         omap2_mcspi_work(mcspi, m);
+        /* spi_finalize_current_message() changes the status inside the
+         * spi_message, save the status here. */
+        status = m->status;
+out:
         spi_finalize_current_message(master);
-        return 0;
+        return status;
 }
 
 static int omap2_mcspi_master_setup(struct omap2_mcspi *mcspi)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index d5d7d2235163..50910d85df5a 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -583,6 +583,15 @@ static int spi_unmap_msg(struct spi_master *master, struct spi_message *msg)
         rx_dev = master->dma_rx->device->dev;
 
         list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+                /*
+                 * Restore the original value of tx_buf or rx_buf if they are
+                 * NULL.
+                 */
+                if (xfer->tx_buf == master->dummy_tx)
+                        xfer->tx_buf = NULL;
+                if (xfer->rx_buf == master->dummy_rx)
+                        xfer->rx_buf = NULL;
+
                 if (!master->can_dma(master, msg->spi, xfer))
                         continue;
 
diff --git a/drivers/staging/media/omap4iss/Kconfig b/drivers/staging/media/omap4iss/Kconfig
index b78643f907e7..072dac04a750 100644
--- a/drivers/staging/media/omap4iss/Kconfig
+++ b/drivers/staging/media/omap4iss/Kconfig
@@ -2,6 +2,7 @@ config VIDEO_OMAP4
         bool "OMAP 4 Camera support"
         depends on VIDEO_V4L2=y && VIDEO_V4L2_SUBDEV_API && I2C=y && ARCH_OMAP4
         depends on HAS_DMA
+        select MFD_SYSCON
         select VIDEOBUF2_DMA_CONTIG
         ---help---
           Driver for an OMAP 4 ISS controller.
diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c
index e0ad5e520e2d..7ced940bd807 100644
--- a/drivers/staging/media/omap4iss/iss.c
+++ b/drivers/staging/media/omap4iss/iss.c
@@ -17,6 +17,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
+#include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
@@ -1386,6 +1387,16 @@ static int iss_probe(struct platform_device *pdev)
 
         platform_set_drvdata(pdev, iss);
 
+        /*
+         * TODO: When implementing DT support switch to syscon regmap lookup by
+         * phandle.
+         */
+        iss->syscon = syscon_regmap_lookup_by_compatible("syscon");
+        if (IS_ERR(iss->syscon)) {
+                ret = PTR_ERR(iss->syscon);
+                goto error;
+        }
+
         /* Clocks */
         ret = iss_map_mem_resource(pdev, iss, OMAP4_ISS_MEM_TOP);
         if (ret < 0)
diff --git a/drivers/staging/media/omap4iss/iss.h b/drivers/staging/media/omap4iss/iss.h
index 734cfeeb0314..35df8b4709e6 100644
--- a/drivers/staging/media/omap4iss/iss.h
+++ b/drivers/staging/media/omap4iss/iss.h
@@ -29,6 +29,8 @@
 #include "iss_ipipe.h"
 #include "iss_resizer.h"
 
+struct regmap;
+
 #define to_iss_device(ptr_module)                               \
         container_of(ptr_module, struct iss_device, ptr_module)
 #define to_device(ptr_module)                                           \
@@ -79,6 +81,7 @@ struct iss_reg {
 
 /*
  * struct iss_device - ISS device structure.
+ * @syscon: Regmap for the syscon register space
  * @crashed: Bitmask of crashed entities (indexed by entity ID)
  */
 struct iss_device {
@@ -93,6 +96,7 @@ struct iss_device {
 
         struct resource *res[OMAP4_ISS_MEM_LAST];
         void __iomem *regs[OMAP4_ISS_MEM_LAST];
+        struct regmap *syscon;
 
         u64 raw_dmamask;
 
diff --git a/drivers/staging/media/omap4iss/iss_csiphy.c b/drivers/staging/media/omap4iss/iss_csiphy.c
index 7c3d55d811ef..748607f8918f 100644
--- a/drivers/staging/media/omap4iss/iss_csiphy.c
+++ b/drivers/staging/media/omap4iss/iss_csiphy.c
@@ -13,6 +13,7 @@
 
 #include <linux/delay.h>
 #include <linux/device.h>
+#include <linux/regmap.h>
 
 #include "../../../../arch/arm/mach-omap2/control.h"
 
@@ -140,9 +141,11 @@ int omap4iss_csiphy_config(struct iss_device *iss,
          * - bit [18] : CSIPHY1 CTRLCLK enable
          * - bit [17:16] : CSIPHY1 config: 00 d-phy, 01/10 ccp2
          */
-        cam_rx_ctrl = omap4_ctrl_pad_readl(
-                        OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_CAMERA_RX);
-
+        /*
+         * TODO: When implementing DT support specify the CONTROL_CAMERA_RX
+         * register offset in the syscon property instead of hardcoding it.
+         */
+        regmap_read(iss->syscon, 0x68, &cam_rx_ctrl);
 
         if (subdevs->interface == ISS_INTERFACE_CSI2A_PHY1) {
                 cam_rx_ctrl &= ~(OMAP4_CAMERARX_CSI21_LANEENABLE_MASK |
@@ -166,8 +169,7 @@ int omap4iss_csiphy_config(struct iss_device *iss,
                 cam_rx_ctrl |= OMAP4_CAMERARX_CSI22_CTRLCLKEN_MASK;
         }
 
-        omap4_ctrl_pad_writel(cam_rx_ctrl,
-                 OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_CAMERA_RX);
+        regmap_write(iss->syscon, 0x68, cam_rx_ctrl);
 
         /* Reset used lane count */
         csi2->phy->used_data_lanes = 0;
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index f1e57425e39f..5bab1c684bb1 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -299,11 +299,27 @@ static int xen_initial_domain_console_init(void)
         return 0;
 }
 
+static void xen_console_update_evtchn(struct xencons_info *info)
+{
+        if (xen_hvm_domain()) {
+                uint64_t v;
+                int err;
+
+                err = hvm_get_parameter(HVM_PARAM_CONSOLE_EVTCHN, &v);
+                if (!err && v)
+                        info->evtchn = v;
+        } else
+                info->evtchn = xen_start_info->console.domU.evtchn;
+}
+
 void xen_console_resume(void)
 {
         struct xencons_info *info = vtermno_to_xencons(HVC_COOKIE);
-        if (info != NULL && info->irq)
+        if (info != NULL && info->irq) {
+                if (!xen_initial_domain())
+                        xen_console_update_evtchn(info);
                 rebind_evtchn_irq(info->evtchn, info->irq);
+        }
 }
 
 static void xencons_disconnect_backend(struct xencons_info *info)
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 08da4d3e2162..46bcebba54b2 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1998,6 +1998,8 @@ pci_wch_ch38x_setup(struct serial_private *priv,
 #define PCIE_DEVICE_ID_WCH_CH382_2S1P   0x3250
 #define PCIE_DEVICE_ID_WCH_CH384_4S     0x3470
 
+#define PCI_DEVICE_ID_EXAR_XR17V8358    0x8358
+
 /* Unknown vendors/cards - this should not be in linux/pci_ids.h */
 #define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584
 #define PCI_SUBDEVICE_ID_UNKNOWN_0x1588 0x1588
@@ -2520,6 +2522,13 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
                 .subdevice      = PCI_ANY_ID,
                 .setup          = pci_xr17v35x_setup,
         },
+        {
+                .vendor = PCI_VENDOR_ID_EXAR,
+                .device = PCI_DEVICE_ID_EXAR_XR17V8358,
+                .subvendor      = PCI_ANY_ID,
+                .subdevice      = PCI_ANY_ID,
+                .setup          = pci_xr17v35x_setup,
+        },
         /*
          * Xircom cards
          */
@@ -2999,6 +3008,7 @@ enum pci_board_num_t {
         pbn_exar_XR17V352,
         pbn_exar_XR17V354,
         pbn_exar_XR17V358,
+        pbn_exar_XR17V8358,
         pbn_exar_ibm_saturn,
         pbn_pasemi_1682M,
         pbn_ni8430_2,
@@ -3685,6 +3695,14 @@ static struct pciserial_board pci_boards[] = {
                 .reg_shift      = 0,
                 .first_offset   = 0,
         },
+        [pbn_exar_XR17V8358] = {
+                .flags          = FL_BASE0,
+                .num_ports      = 16,
+                .base_baud      = 7812500,
+                .uart_offset    = 0x400,
+                .reg_shift      = 0,
+                .first_offset   = 0,
+        },
         [pbn_exar_ibm_saturn] = {
                 .flags          = FL_BASE0,
                 .num_ports      = 1,
@@ -5080,7 +5098,7 @@ static struct pci_device_id serial_pci_tbl[] = {
                 0,
                 0, pbn_exar_XR17C158 },
         /*
-         * Exar Corp. XR17V35[248] Dual/Quad/Octal PCIe UARTs
+         * Exar Corp. XR17V[48]35[248] Dual/Quad/Octal/Hexa PCIe UARTs
          */
         {       PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17V352,
                 PCI_ANY_ID, PCI_ANY_ID,
@@ -5094,7 +5112,10 @@ static struct pci_device_id serial_pci_tbl[] = {
                 PCI_ANY_ID, PCI_ANY_ID,
                 0,
                 0, pbn_exar_XR17V358 },
-
+        {       PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17V8358,
+                PCI_ANY_ID, PCI_ANY_ID,
+                0,
+                0, pbn_exar_XR17V8358 },
         /*
          * Topic TP560 Data/Fax/Voice 56k modem (reported by Evan Clarke)
          */
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index d58fe4763d9e..27dade29646b 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -880,6 +880,7 @@ static int atmel_prepare_tx_dma(struct uart_port *port)
         config.direction = DMA_MEM_TO_DEV;
         config.dst_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
         config.dst_addr = port->mapbase + ATMEL_US_THR;
+        config.dst_maxburst = 1;
 
         ret = dmaengine_slave_config(atmel_port->chan_tx,
                                      &config);
@@ -1059,6 +1060,7 @@ static int atmel_prepare_rx_dma(struct uart_port *port)
         config.direction = DMA_DEV_TO_MEM;
         config.src_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
         config.src_addr = port->mapbase + ATMEL_US_RHR;
+        config.src_maxburst = 1;
 
         ret = dmaengine_slave_config(atmel_port->chan_rx,
                                      &config);
diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c
index 5b73afb9f9f3..137381e649e5 100644
--- a/drivers/tty/serial/of_serial.c
+++ b/drivers/tty/serial/of_serial.c
@@ -346,7 +346,6 @@ static const struct of_device_id of_platform_serial_table[] = {
         { .compatible = "ibm,qpace-nwp-serial",
                 .data = (void *)PORT_NWPSERIAL, },
 #endif
-        { .type = "serial",         .data = (void *)PORT_UNKNOWN, },
         { /* end of list */ },
 };
 
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index cf08876922f1..a0ae942d9562 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -1068,8 +1068,9 @@ static int s3c64xx_serial_startup(struct uart_port *port)
         spin_lock_irqsave(&port->lock, flags);
 
         ufcon = rd_regl(port, S3C2410_UFCON);
-        ufcon |= S3C2410_UFCON_RESETRX | S3C2410_UFCON_RESETTX |
-                        S5PV210_UFCON_RXTRIG8;
+        ufcon |= S3C2410_UFCON_RESETRX | S5PV210_UFCON_RXTRIG8;
+        if (!uart_console(port))
+                ufcon |= S3C2410_UFCON_RESETTX;
         wr_regl(port, S3C2410_UFCON, ufcon);
 
         enable_rx_pio(ourport);
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index eb5b03be9dfd..0b7bb12dfc68 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1770,7 +1770,7 @@ static const struct file_operations uart_proc_fops = {
  *      @port: the port to write the message
  *      @s: array of characters
  *      @count: number of characters in string to write
- *      @write: function to write character to port
+ *      @putchar: function to write character to port
  */
 void uart_console_write(struct uart_port *port, const char *s,
                         unsigned int count,
diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index 708eead850b0..b1c6bd3d483f 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -632,7 +632,8 @@ MODULE_DEVICE_TABLE(of, ulite_of_match);
 
 static int ulite_probe(struct platform_device *pdev)
 {
-        struct resource *res, *res2;
+        struct resource *res;
+        int irq;
         int id = pdev->id;
 #ifdef CONFIG_OF
         const __be32 *prop;
@@ -646,11 +647,11 @@ static int ulite_probe(struct platform_device *pdev)
         if (!res)
                 return -ENODEV;
 
-        res2 = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-        if (!res2)
-                return -ENODEV;
+        irq = platform_get_irq(pdev, 0);
+        if (irq <= 0)
+                return -ENXIO;
 
-        return ulite_assign(&pdev->dev, id, res->start, res2->start);
+        return ulite_assign(&pdev->dev, id, res->start, irq);
 }
 
 static int ulite_remove(struct platform_device *pdev)
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index f218ec658f5d..3ddbac767db3 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1331,9 +1331,9 @@ static SIMPLE_DEV_PM_OPS(cdns_uart_dev_pm_ops, cdns_uart_suspend,
  */
 static int cdns_uart_probe(struct platform_device *pdev)
 {
-        int rc, id;
+        int rc, id, irq;
         struct uart_port *port;
-        struct resource *res, *res2;
+        struct resource *res;
         struct cdns_uart *cdns_uart_data;
 
         cdns_uart_data = devm_kzalloc(&pdev->dev, sizeof(*cdns_uart_data),
@@ -1380,9 +1380,9 @@ static int cdns_uart_probe(struct platform_device *pdev)
                 goto err_out_clk_disable;
         }
 
-        res2 = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-        if (!res2) {
-                rc = -ENODEV;
+        irq = platform_get_irq(pdev, 0);
+        if (irq <= 0) {
+                rc = -ENXIO;
                 goto err_out_clk_disable;
         }
 
@@ -1411,7 +1411,7 @@ static int cdns_uart_probe(struct platform_device *pdev)
                  * and triggers invocation of the config_port() entry point.
                  */
                 port->mapbase = res->start;
-                port->irq = res2->start;
+                port->irq = irq;
                 port->dev = &pdev->dev;
                 port->uartclk = clk_get_rate(cdns_uart_data->uartclk);
                 port->private_data = cdns_uart_data;
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 632fc8152061..8e53fe469664 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -536,7 +536,7 @@ EXPORT_SYMBOL(tty_termios_hw_change);
  *      Locking: termios_rwsem
  */
 
-static int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios)
+int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios)
 {
         struct ktermios old_termios;
         struct tty_ldisc *ld;
@@ -569,6 +569,7 @@ static int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios)
         up_write(&tty->termios_rwsem);
         return 0;
 }
+EXPORT_SYMBOL_GPL(tty_set_termios);
 
 /**
  *      set_termios             -       set termios values for a tty
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 083acf45ad5a..19d655a743b5 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -520,7 +520,6 @@ static int ci_otg_start_host(struct otg_fsm *fsm, int on)
 {
         struct ci_hdrc  *ci = container_of(fsm, struct ci_hdrc, fsm);
 
-        mutex_unlock(&fsm->lock);
         if (on) {
                 ci_role_stop(ci);
                 ci_role_start(ci, CI_ROLE_HOST);
@@ -529,7 +528,6 @@ static int ci_otg_start_host(struct otg_fsm *fsm, int on)
                 hw_device_reset(ci);
                 ci_role_start(ci, CI_ROLE_GADGET);
         }
-        mutex_lock(&fsm->lock);
         return 0;
 }
 
@@ -537,12 +535,10 @@ static int ci_otg_start_gadget(struct otg_fsm *fsm, int on)
 {
         struct ci_hdrc  *ci = container_of(fsm, struct ci_hdrc, fsm);
 
-        mutex_unlock(&fsm->lock);
         if (on)
                 usb_gadget_vbus_connect(&ci->gadget);
         else
                 usb_gadget_vbus_disconnect(&ci->gadget);
-        mutex_lock(&fsm->lock);
 
         return 0;
 }
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 3e15add665e2..5c8f58114677 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1142,11 +1142,16 @@ static int acm_probe(struct usb_interface *intf,
         }
 
         while (buflen > 0) {
+                elength = buffer[0];
+                if (!elength) {
+                        dev_err(&intf->dev, "skipping garbage byte\n");
+                        elength = 1;
+                        goto next_desc;
+                }
                 if (buffer[1] != USB_DT_CS_INTERFACE) {
                         dev_err(&intf->dev, "skipping garbage\n");
                         goto next_desc;
                 }
-                elength = buffer[0];
 
                 switch (buffer[2]) {
                 case USB_CDC_UNION_TYPE: /* we've found it */
diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c
index 9db74ca7e5b9..275c92e53a59 100644
--- a/drivers/usb/host/ehci-msm.c
+++ b/drivers/usb/host/ehci-msm.c
@@ -88,13 +88,20 @@ static int ehci_msm_probe(struct platform_device *pdev)
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        hcd->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (IS_ERR(hcd->regs)) {
-                ret = PTR_ERR(hcd->regs);
+        if (!res) {
+                dev_err(&pdev->dev, "Unable to get memory resource\n");
+                ret = -ENODEV;
                 goto put_hcd;
         }
+
         hcd->rsrc_start = res->start;
         hcd->rsrc_len = resource_size(res);
+        hcd->regs = devm_ioremap(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len);
+        if (!hcd->regs) {
+                dev_err(&pdev->dev, "ioremap failed\n");
+                ret = -ENOMEM;
+                goto put_hcd;
+        }
 
         /*
          * OTG driver takes care of PHY initialization, clock management,
diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h
index 9893d696fc97..f58caa9e6a27 100644
--- a/drivers/usb/storage/uas-detect.h
+++ b/drivers/usb/storage/uas-detect.h
@@ -51,7 +51,8 @@ static int uas_find_endpoints(struct usb_host_interface *alt,
 }
 
 static int uas_use_uas_driver(struct usb_interface *intf,
-                              const struct usb_device_id *id)
+                              const struct usb_device_id *id,
+                              unsigned long *flags_ret)
 {
         struct usb_host_endpoint *eps[4] = { };
         struct usb_device *udev = interface_to_usbdev(intf);
@@ -73,7 +74,7 @@ static int uas_use_uas_driver(struct usb_interface *intf,
          * this writing the following versions exist:
          * ASM1051 - no uas support version
          * ASM1051 - with broken (*) uas support
-         * ASM1053 - with working uas support
+         * ASM1053 - with working uas support, but problems with large xfers
          * ASM1153 - with working uas support
          *
          * Devices with these chips re-use a number of device-ids over the
@@ -103,6 +104,9 @@ static int uas_use_uas_driver(struct usb_interface *intf,
                 } else if (usb_ss_max_streams(&eps[1]->ss_ep_comp) == 32) {
                         /* Possibly an ASM1051, disable uas */
                         flags |= US_FL_IGNORE_UAS;
+                } else {
+                        /* ASM1053, these have issues with large transfers */
+                        flags |= US_FL_MAX_SECTORS_240;
                 }
         }
 
@@ -132,5 +136,8 @@ static int uas_use_uas_driver(struct usb_interface *intf,
                 return 0;
         }
 
+        if (flags_ret)
+                *flags_ret = flags;
+
         return 1;
 }
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 6cdabdc119a7..6d3122afeed3 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -759,7 +759,10 @@ static int uas_eh_bus_reset_handler(struct scsi_cmnd *cmnd)
 
 static int uas_slave_alloc(struct scsi_device *sdev)
 {
-        sdev->hostdata = (void *)sdev->host->hostdata;
+        struct uas_dev_info *devinfo =
+                (struct uas_dev_info *)sdev->host->hostdata;
+
+        sdev->hostdata = devinfo;
 
         /* USB has unusual DMA-alignment requirements: Although the
          * starting address of each scatter-gather element doesn't matter,
@@ -778,6 +781,11 @@ static int uas_slave_alloc(struct scsi_device *sdev)
          */
         blk_queue_update_dma_alignment(sdev->request_queue, (512 - 1));
 
+        if (devinfo->flags & US_FL_MAX_SECTORS_64)
+                blk_queue_max_hw_sectors(sdev->request_queue, 64);
+        else if (devinfo->flags & US_FL_MAX_SECTORS_240)
+                blk_queue_max_hw_sectors(sdev->request_queue, 240);
+
         return 0;
 }
 
@@ -887,8 +895,9 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id)
         struct Scsi_Host *shost = NULL;
         struct uas_dev_info *devinfo;
         struct usb_device *udev = interface_to_usbdev(intf);
+        unsigned long dev_flags;
 
-        if (!uas_use_uas_driver(intf, id))
+        if (!uas_use_uas_driver(intf, id, &dev_flags))
                 return -ENODEV;
 
         if (uas_switch_interface(udev, intf))
@@ -910,8 +919,7 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id)
         devinfo->udev = udev;
         devinfo->resetting = 0;
         devinfo->shutdown = 0;
-        devinfo->flags = id->driver_info;
-        usb_stor_adjust_quirks(udev, &devinfo->flags);
+        devinfo->flags = dev_flags;
         init_usb_anchor(&devinfo->cmd_urbs);
         init_usb_anchor(&devinfo->sense_urbs);
         init_usb_anchor(&devinfo->data_urbs);
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 5600c33fcadb..6c10c888f35f 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -479,7 +479,8 @@ void usb_stor_adjust_quirks(struct usb_device *udev, unsigned long *fflags)
                         US_FL_SINGLE_LUN | US_FL_NO_WP_DETECT |
                         US_FL_NO_READ_DISC_INFO | US_FL_NO_READ_CAPACITY_16 |
                         US_FL_INITIAL_READ10 | US_FL_WRITE_CACHE |
-                        US_FL_NO_ATA_1X | US_FL_NO_REPORT_OPCODES);
+                        US_FL_NO_ATA_1X | US_FL_NO_REPORT_OPCODES |
+                        US_FL_MAX_SECTORS_240);
 
         p = quirks;
         while (*p) {
@@ -520,6 +521,9 @@ void usb_stor_adjust_quirks(struct usb_device *udev, unsigned long *fflags)
                 case 'f':
                         f |= US_FL_NO_REPORT_OPCODES;
                         break;
+                case 'g':
+                        f |= US_FL_MAX_SECTORS_240;
+                        break;
                 case 'h':
                         f |= US_FL_CAPACITY_HEURISTICS;
                         break;
@@ -1080,7 +1084,7 @@ static int storage_probe(struct usb_interface *intf,
 
         /* If uas is enabled and this device can do uas then ignore it. */
 #if IS_ENABLED(CONFIG_USB_UAS)
-        if (uas_use_uas_driver(intf, id))
+        if (uas_use_uas_driver(intf, id, NULL))
                 return -ENXIO;
 #endif
 
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 69fab0fd15ae..e9851add6f4e 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -907,8 +907,14 @@ static void vfio_pci_request(void *device_data, unsigned int count)
         mutex_lock(&vdev->igate);
 
         if (vdev->req_trigger) {
-                dev_dbg(&vdev->pdev->dev, "Requesting device from user\n");
+                if (!(count % 10))
+                        dev_notice_ratelimited(&vdev->pdev->dev,
+                                "Relaying device request to user (#%u)\n",
+                                count);
                 eventfd_signal(vdev->req_trigger, 1);
+        } else if (count == 0) {
+                dev_warn(&vdev->pdev->dev,
+                        "No device request channel registered, blocked until released by user\n");
         }
 
         mutex_unlock(&vdev->igate);
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 0d336625ac71..e1278fe04b1e 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -710,6 +710,8 @@ void *vfio_del_group_dev(struct device *dev)
         void *device_data = device->device_data;
         struct vfio_unbound_dev *unbound;
         unsigned int i = 0;
+        long ret;
+        bool interrupted = false;
 
         /*
          * The group exists so long as we have a device reference.  Get
@@ -755,9 +757,22 @@ void *vfio_del_group_dev(struct device *dev)
 
                 vfio_device_put(device);
 
-        } while (wait_event_interruptible_timeout(vfio.release_q,
-                                                  !vfio_dev_present(group, dev),
-                                                  HZ * 10) <= 0);
+                if (interrupted) {
+                        ret = wait_event_timeout(vfio.release_q,
+                                        !vfio_dev_present(group, dev), HZ * 10);
+                } else {
+                        ret = wait_event_interruptible_timeout(vfio.release_q,
+                                        !vfio_dev_present(group, dev), HZ * 10);
+                        if (ret == -ERESTARTSYS) {
+                                interrupted = true;
+                                dev_warn(dev,
+                                         "Device is currently in use, task"
+                                         " \"%s\" (%d) "
+                                         "blocked until device is released",
+                                         current->comm, task_pid_nr(current));
+                        }
+                }
+        } while (ret <= 0);
 
         vfio_group_put(group);
 
diff --git a/drivers/xen/events/events_2l.c b/drivers/xen/events/events_2l.c
index 5db43fc100a4..7dd46312c180 100644
--- a/drivers/xen/events/events_2l.c
+++ b/drivers/xen/events/events_2l.c
@@ -345,6 +345,15 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id)
         return IRQ_HANDLED;
 }
 
+static void evtchn_2l_resume(void)
+{
+        int i;
+
+        for_each_online_cpu(i)
+                memset(per_cpu(cpu_evtchn_mask, i), 0, sizeof(xen_ulong_t) *
+                                EVTCHN_2L_NR_CHANNELS/BITS_PER_EVTCHN_WORD);
+}
+
 static const struct evtchn_ops evtchn_ops_2l = {
         .max_channels      = evtchn_2l_max_channels,
         .nr_channels       = evtchn_2l_max_channels,
@@ -356,6 +365,7 @@ static const struct evtchn_ops evtchn_ops_2l = {
         .mask              = evtchn_2l_mask,
         .unmask            = evtchn_2l_unmask,
         .handle_events     = evtchn_2l_handle_events,
+        .resume            = evtchn_2l_resume,
 };
 
 void __init xen_evtchn_2l_init(void)
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 70fba973a107..2b8553bd8715 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -529,8 +529,8 @@ static unsigned int __startup_pirq(unsigned int irq)
         if (rc)
                 goto err;
 
-        bind_evtchn_to_cpu(evtchn, 0);
         info->evtchn = evtchn;
+        bind_evtchn_to_cpu(evtchn, 0);
 
         rc = xen_evtchn_port_setup(info);
         if (rc)
@@ -1279,8 +1279,9 @@ void rebind_evtchn_irq(int evtchn, int irq)
 
         mutex_unlock(&irq_mapping_update_lock);
 
-        /* new event channels are always bound to cpu 0 */
-        irq_set_affinity(irq, cpumask_of(0));
+        bind_evtchn_to_cpu(evtchn, info->cpu);
+        /* This will be deferred until interrupt is processed */
+        irq_set_affinity(irq, cpumask_of(info->cpu));
 
         /* Unmask the event channel. */
         enable_irq(irq);
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index d5bb1a33d0a3..89274850741b 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -327,30 +327,10 @@ static int map_grant_pages(struct grant_map *map)
         return err;
 }
 
-struct unmap_grant_pages_callback_data
-{
-        struct completion completion;
-        int result;
-};
-
-static void unmap_grant_callback(int result,
-                                 struct gntab_unmap_queue_data *data)
-{
-        struct unmap_grant_pages_callback_data* d = data->data;
-
-        d->result = result;
-        complete(&d->completion);
-}
-
 static int __unmap_grant_pages(struct grant_map *map, int offset, int pages)
 {
         int i, err = 0;
         struct gntab_unmap_queue_data unmap_data;
-        struct unmap_grant_pages_callback_data data;
-
-        init_completion(&data.completion);
-        unmap_data.data = &data;
-        unmap_data.done= &unmap_grant_callback;
 
         if (map->notify.flags & UNMAP_NOTIFY_CLEAR_BYTE) {
                 int pgno = (map->notify.addr >> PAGE_SHIFT);
@@ -367,11 +347,9 @@ static int __unmap_grant_pages(struct grant_map *map, int offset, int pages)
         unmap_data.pages = map->pages + offset;
         unmap_data.count = pages;
 
-        gnttab_unmap_refs_async(&unmap_data);
-
-        wait_for_completion(&data.completion);
-        if (data.result)
-                return data.result;
+        err = gnttab_unmap_refs_sync(&unmap_data);
+        if (err)
+                return err;
 
         for (i = 0; i < pages; i++) {
                 if (map->unmap_ops[offset+i].status)
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 17972fbacddc..b1c7170e5c9e 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -123,6 +123,11 @@ struct gnttab_ops {
         int (*query_foreign_access)(grant_ref_t ref);
 };
 
+struct unmap_refs_callback_data {
+        struct completion completion;
+        int result;
+};
+
 static struct gnttab_ops *gnttab_interface;
 
 static int grant_table_version;
@@ -863,6 +868,29 @@ void gnttab_unmap_refs_async(struct gntab_unmap_queue_data* item)
 }
 EXPORT_SYMBOL_GPL(gnttab_unmap_refs_async);
 
+static void unmap_refs_callback(int result,
+                struct gntab_unmap_queue_data *data)
+{
+        struct unmap_refs_callback_data *d = data->data;
+
+        d->result = result;
+        complete(&d->completion);
+}
+
+int gnttab_unmap_refs_sync(struct gntab_unmap_queue_data *item)
+{
+        struct unmap_refs_callback_data data;
+
+        init_completion(&data.completion);
+        item->data = &data;
+        item->done = &unmap_refs_callback;
+        gnttab_unmap_refs_async(item);
+        wait_for_completion(&data.completion);
+
+        return data.result;
+}
+EXPORT_SYMBOL_GPL(gnttab_unmap_refs_sync);
+
 static int gnttab_map_frames_v1(xen_pfn_t *frames, unsigned int nr_gframes)
 {
         int rc;
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index bf1940706422..9e6a85104a20 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -131,6 +131,8 @@ static void do_suspend(void)
                 goto out_resume;
         }
 
+        xen_arch_suspend();
+
         si.cancelled = 1;
 
         err = stop_machine(xen_suspend, &si, cpumask_of(0));
@@ -148,11 +150,12 @@ static void do_suspend(void)
                 si.cancelled = 1;
         }
 
+        xen_arch_resume();
+
 out_resume:
-        if (!si.cancelled) {
-                xen_arch_resume();
+        if (!si.cancelled)
                 xs_resume();
-        } else
+        else
                 xs_suspend_cancel();
 
         dpm_resume_end(si.cancelled ? PMSG_THAW : PMSG_RESTORE);
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 810ad419e34c..4c549323c605 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -235,7 +235,7 @@ retry:
 #define SLABS_PER_PAGE (1 << (PAGE_SHIFT - IO_TLB_SHIFT))
 #define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT)
                 while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) {
-                        xen_io_tlb_start = (void *)__get_free_pages(__GFP_NOWARN, order);
+                        xen_io_tlb_start = (void *)xen_get_swiotlb_free_pages(order);
                         if (xen_io_tlb_start)
                                 break;
                         order--;
diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c
index 75fe3d466515..9c234209d8b5 100644
--- a/drivers/xen/xen-pciback/conf_space.c
+++ b/drivers/xen/xen-pciback/conf_space.c
@@ -16,8 +16,8 @@
 #include "conf_space.h"
 #include "conf_space_quirks.h"
 
-bool permissive;
-module_param(permissive, bool, 0644);
+bool xen_pcibk_permissive;
+module_param_named(permissive, xen_pcibk_permissive, bool, 0644);
 
 /* This is where xen_pcibk_read_config_byte, xen_pcibk_read_config_word,
  * xen_pcibk_write_config_word, and xen_pcibk_write_config_byte are created. */
@@ -262,7 +262,7 @@ int xen_pcibk_config_write(struct pci_dev *dev, int offset, int size, u32 value)
                  * This means that some fields may still be read-only because
                  * they have entries in the config_field list that intercept
                  * the write and do nothing. */
-                if (dev_data->permissive || permissive) {
+                if (dev_data->permissive || xen_pcibk_permissive) {
                         switch (size) {
                         case 1:
                                 err = pci_write_config_byte(dev, offset,
diff --git a/drivers/xen/xen-pciback/conf_space.h b/drivers/xen/xen-pciback/conf_space.h
index 2e1d73d1d5d0..62461a8ba1d6 100644
--- a/drivers/xen/xen-pciback/conf_space.h
+++ b/drivers/xen/xen-pciback/conf_space.h
@@ -64,7 +64,7 @@ struct config_field_entry {
         void *data;
 };
 
-extern bool permissive;
+extern bool xen_pcibk_permissive;
 
 #define OFFSET(cfg_entry) ((cfg_entry)->base_offset+(cfg_entry)->field->offset)
 
diff --git a/drivers/xen/xen-pciback/conf_space_header.c b/drivers/xen/xen-pciback/conf_space_header.c
index c2260a0456c9..ad3d17d29c81 100644
--- a/drivers/xen/xen-pciback/conf_space_header.c
+++ b/drivers/xen/xen-pciback/conf_space_header.c
@@ -118,7 +118,7 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data)
 
         cmd->val = value;
 
-        if (!permissive && (!dev_data || !dev_data->permissive))
+        if (!xen_pcibk_permissive && (!dev_data || !dev_data->permissive))
                 return 0;
 
         /* Only allow the guest to control certain bits. */
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index 564b31584860..5390a674b5e3 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -57,6 +57,7 @@
 #include <xen/xen.h>
 #include <xen/xenbus.h>
 #include <xen/events.h>
+#include <xen/xen-ops.h>
 #include <xen/page.h>
 
 #include <xen/hvm.h>
@@ -735,6 +736,30 @@ static int __init xenstored_local_init(void)
         return err;
 }
 
+static int xenbus_resume_cb(struct notifier_block *nb,
+                            unsigned long action, void *data)
+{
+        int err = 0;
+
+        if (xen_hvm_domain()) {
+                uint64_t v;
+
+                err = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN, &v);
+                if (!err && v)
+                        xen_store_evtchn = v;
+                else
+                        pr_warn("Cannot update xenstore event channel: %d\n",
+                                err);
+        } else
+                xen_store_evtchn = xen_start_info->store_evtchn;
+
+        return err;
+}
+
+static struct notifier_block xenbus_resume_nb = {
+        .notifier_call = xenbus_resume_cb,
+};
+
 static int __init xenbus_init(void)
 {
         int err = 0;
@@ -793,6 +818,10 @@ static int __init xenbus_init(void)
                 goto out_error;
         }
 
+        if ((xen_store_domain_type != XS_LOCAL) &&
+            (xen_store_domain_type != XS_UNKNOWN))
+                xen_resume_notifier_register(&xenbus_resume_nb);
+
 #ifdef CONFIG_XEN_COMPAT_XENFS
         /*
          * Create xenfs mountpoint in /proc for compatibility with
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index cde698a07d21..a2ae42720a6a 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1802,6 +1802,8 @@ int btrfs_fill_inode(struct inode *inode, u32 *rdev)
         set_nlink(inode, btrfs_stack_inode_nlink(inode_item));
         inode_set_bytes(inode, btrfs_stack_inode_nbytes(inode_item));
         BTRFS_I(inode)->generation = btrfs_stack_inode_generation(inode_item);
+        BTRFS_I(inode)->last_trans = btrfs_stack_inode_transid(inode_item);
+
         inode->i_version = btrfs_stack_inode_sequence(inode_item);
         inode->i_rdev = 0;
         *rdev = btrfs_stack_inode_rdev(inode_item);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 1eef4ee01d1a..0ec8e228b89f 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3178,8 +3178,8 @@ static int write_one_cache_group(struct btrfs_trans_handle *trans,
         bi = btrfs_item_ptr_offset(leaf, path->slots[0]);
         write_extent_buffer(leaf, &cache->item, bi, sizeof(cache->item));
         btrfs_mark_buffer_dirty(leaf);
-        btrfs_release_path(path);
 fail:
+        btrfs_release_path(path);
         if (ret)
                 btrfs_abort_transaction(trans, root, ret);
         return ret;
@@ -3305,8 +3305,7 @@ again:
 
         spin_lock(&block_group->lock);
         if (block_group->cached != BTRFS_CACHE_FINISHED ||
-            !btrfs_test_opt(root, SPACE_CACHE) ||
-            block_group->delalloc_bytes) {
+            !btrfs_test_opt(root, SPACE_CACHE)) {
                 /*
                  * don't bother trying to write stuff out _if_
                  * a) we're not cached,
@@ -3408,17 +3407,14 @@ int btrfs_start_dirty_block_groups(struct btrfs_trans_handle *trans,
         int loops = 0;
 
         spin_lock(&cur_trans->dirty_bgs_lock);
-        if (!list_empty(&cur_trans->dirty_bgs)) {
-                list_splice_init(&cur_trans->dirty_bgs, &dirty);
+        if (list_empty(&cur_trans->dirty_bgs)) {
+                spin_unlock(&cur_trans->dirty_bgs_lock);
+                return 0;
         }
+        list_splice_init(&cur_trans->dirty_bgs, &dirty);
         spin_unlock(&cur_trans->dirty_bgs_lock);
 
 again:
-        if (list_empty(&dirty)) {
-                btrfs_free_path(path);
-                return 0;
-        }
-
         /*
          * make sure all the block groups on our dirty list actually
          * exist
@@ -3431,18 +3427,16 @@ again:
                         return -ENOMEM;
         }
 
+        /*
+         * cache_write_mutex is here only to save us from balance or automatic
+         * removal of empty block groups deleting this block group while we are
+         * writing out the cache
+         */
+        mutex_lock(&trans->transaction->cache_write_mutex);
         while (!list_empty(&dirty)) {
                 cache = list_first_entry(&dirty,
                                          struct btrfs_block_group_cache,
                                          dirty_list);
-
-                /*
-                 * cache_write_mutex is here only to save us from balance
-                 * deleting this block group while we are writing out the
-                 * cache
-                 */
-                mutex_lock(&trans->transaction->cache_write_mutex);
-
                 /*
                  * this can happen if something re-dirties a block
                  * group that is already under IO.  Just wait for it to
@@ -3495,7 +3489,6 @@ again:
                 }
                 if (!ret)
                         ret = write_one_cache_group(trans, root, path, cache);
-                mutex_unlock(&trans->transaction->cache_write_mutex);
 
                 /* if its not on the io list, we need to put the block group */
                 if (should_put)
@@ -3503,7 +3496,16 @@ again:
 
                 if (ret)
                         break;
+
+                /*
+                 * Avoid blocking other tasks for too long. It might even save
+                 * us from writing caches for block groups that are going to be
+                 * removed.
+                 */
+                mutex_unlock(&trans->transaction->cache_write_mutex);
+                mutex_lock(&trans->transaction->cache_write_mutex);
         }
+        mutex_unlock(&trans->transaction->cache_write_mutex);
 
         /*
          * go through delayed refs for all the stuff we've just kicked off
@@ -3514,8 +3516,15 @@ again:
                 loops++;
                 spin_lock(&cur_trans->dirty_bgs_lock);
                 list_splice_init(&cur_trans->dirty_bgs, &dirty);
+                /*
+                 * dirty_bgs_lock protects us from concurrent block group
+                 * deletes too (not just cache_write_mutex).
+                 */
+                if (!list_empty(&dirty)) {
+                        spin_unlock(&cur_trans->dirty_bgs_lock);
+                        goto again;
+                }
                 spin_unlock(&cur_trans->dirty_bgs_lock);
-                goto again;
         }
 
         btrfs_free_path(path);
@@ -7537,7 +7546,7 @@ static void unuse_block_rsv(struct btrfs_fs_info *fs_info,
  * returns the key for the extent through ins, and a tree buffer for
  * the first block of the extent through buf.
  *
- * returns the tree buffer or NULL.
+ * returns the tree buffer or an ERR_PTR on error.
  */
 struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
                                         struct btrfs_root *root,
@@ -7548,6 +7557,7 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
         struct btrfs_key ins;
         struct btrfs_block_rsv *block_rsv;
         struct extent_buffer *buf;
+        struct btrfs_delayed_extent_op *extent_op;
         u64 flags = 0;
         int ret;
         u32 blocksize = root->nodesize;
@@ -7568,13 +7578,14 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
 
         ret = btrfs_reserve_extent(root, blocksize, blocksize,
                                    empty_size, hint, &ins, 0, 0);
-        if (ret) {
-                unuse_block_rsv(root->fs_info, block_rsv, blocksize);
-                return ERR_PTR(ret);
-        }
+        if (ret)
+                goto out_unuse;
 
         buf = btrfs_init_new_buffer(trans, root, ins.objectid, level);
-        BUG_ON(IS_ERR(buf)); /* -ENOMEM */
+        if (IS_ERR(buf)) {
+                ret = PTR_ERR(buf);
+                goto out_free_reserved;
+        }
 
         if (root_objectid == BTRFS_TREE_RELOC_OBJECTID) {
                 if (parent == 0)
@@ -7584,9 +7595,11 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
                 BUG_ON(parent > 0);
 
         if (root_objectid != BTRFS_TREE_LOG_OBJECTID) {
-                struct btrfs_delayed_extent_op *extent_op;
                 extent_op = btrfs_alloc_delayed_extent_op();
-                BUG_ON(!extent_op); /* -ENOMEM */
+                if (!extent_op) {
+                        ret = -ENOMEM;
+                        goto out_free_buf;
+                }
                 if (key)
                         memcpy(&extent_op->key, key, sizeof(extent_op->key));
                 else
@@ -7601,13 +7614,24 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
                 extent_op->level = level;
 
                 ret = btrfs_add_delayed_tree_ref(root->fs_info, trans,
-                                        ins.objectid,
-                                        ins.offset, parent, root_objectid,
-                                        level, BTRFS_ADD_DELAYED_EXTENT,
-                                        extent_op, 0);
-                BUG_ON(ret); /* -ENOMEM */
+                                                 ins.objectid, ins.offset,
+                                                 parent, root_objectid, level,
+                                                 BTRFS_ADD_DELAYED_EXTENT,
+                                                 extent_op, 0);
+                if (ret)
+                        goto out_free_delayed;
         }
         return buf;
+
+out_free_delayed:
+        btrfs_free_delayed_extent_op(extent_op);
+out_free_buf:
+        free_extent_buffer(buf);
+out_free_reserved:
+        btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 0);
+out_unuse:
+        unuse_block_rsv(root->fs_info, block_rsv, blocksize);
+        return ERR_PTR(ret);
 }
 
 struct walk_control {
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 782f3bc4651d..43af5a61ad25 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4560,36 +4560,37 @@ static void btrfs_release_extent_buffer_page(struct extent_buffer *eb)
         do {
                 index--;
                 page = eb->pages[index];
-                if (page && mapped) {
+                if (!page)
+                        continue;
+                if (mapped)
                         spin_lock(&page->mapping->private_lock);
+                /*
+                 * We do this since we'll remove the pages after we've
+                 * removed the eb from the radix tree, so we could race
+                 * and have this page now attached to the new eb.  So
+                 * only clear page_private if it's still connected to
+                 * this eb.
+                 */
+                if (PagePrivate(page) &&
+                    page->private == (unsigned long)eb) {
+                        BUG_ON(test_bit(EXTENT_BUFFER_DIRTY, &eb->bflags));
+                        BUG_ON(PageDirty(page));
+                        BUG_ON(PageWriteback(page));
                         /*
-                         * We do this since we'll remove the pages after we've
-                         * removed the eb from the radix tree, so we could race
-                         * and have this page now attached to the new eb.  So
-                         * only clear page_private if it's still connected to
-                         * this eb.
+                         * We need to make sure we haven't be attached
+                         * to a new eb.
                          */
-                        if (PagePrivate(page) &&
-                            page->private == (unsigned long)eb) {
-                                BUG_ON(test_bit(EXTENT_BUFFER_DIRTY, &eb->bflags));
-                                BUG_ON(PageDirty(page));
-                                BUG_ON(PageWriteback(page));
-                                /*
-                                 * We need to make sure we haven't be attached
-                                 * to a new eb.
-                                 */
-                                ClearPagePrivate(page);
-                                set_page_private(page, 0);
-                                /* One for the page private */
-                                page_cache_release(page);
-                        }
-                        spin_unlock(&page->mapping->private_lock);
-
-                }
-                if (page) {
-                        /* One for when we alloced the page */
+                        ClearPagePrivate(page);
+                        set_page_private(page, 0);
+                        /* One for the page private */
                         page_cache_release(page);
                 }
+
+                if (mapped)
+                        spin_unlock(&page->mapping->private_lock);
+
+                /* One for when we alloced the page */
+                page_cache_release(page);
         } while (index != 0);
 }
 
@@ -4870,6 +4871,7 @@ struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,
                                 mark_extent_buffer_accessed(exists, p);
                                 goto free_eb;
                         }
+                        exists = NULL;
 
                         /*
                          * Do this so attach doesn't complain and we need to
@@ -4933,12 +4935,12 @@ again:
         return eb;
 
 free_eb:
+        WARN_ON(!atomic_dec_and_test(&eb->refs));
         for (i = 0; i < num_pages; i++) {
                 if (eb->pages[i])
                         unlock_page(eb->pages[i]);
         }
 
-        WARN_ON(!atomic_dec_and_test(&eb->refs));
         btrfs_release_extent_buffer(eb);
         return exists;
 }
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 81fa75a8e1f3..5e020d76fd07 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -86,7 +86,7 @@ static struct inode *__lookup_free_space_inode(struct btrfs_root *root,
 
         mapping_set_gfp_mask(inode->i_mapping,
                         mapping_gfp_mask(inode->i_mapping) &
-                        ~(GFP_NOFS & ~__GFP_HIGHMEM));
+                        ~(__GFP_FS | __GFP_HIGHMEM));
 
         return inode;
 }
@@ -1218,7 +1218,7 @@ out:
  *
  * This function writes out a free space cache struct to disk for quick recovery
  * on mount.  This will return 0 if it was successfull in writing the cache out,
- * and -1 if it was not.
+ * or an errno if it was not.
  */
 static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode,
                                    struct btrfs_free_space_ctl *ctl,
@@ -1235,12 +1235,12 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode,
         int must_iput = 0;
 
         if (!i_size_read(inode))
-                return -1;
+                return -EIO;
 
         WARN_ON(io_ctl->pages);
         ret = io_ctl_init(io_ctl, inode, root, 1);
         if (ret)
-                return -1;
+                return ret;
 
         if (block_group && (block_group->flags & BTRFS_BLOCK_GROUP_DATA)) {
                 down_write(&block_group->data_rwsem);
@@ -1258,7 +1258,9 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode,
         }
 
         /* Lock all pages first so we can lock the extent safely. */
-        io_ctl_prepare_pages(io_ctl, inode, 0);
+        ret = io_ctl_prepare_pages(io_ctl, inode, 0);
+        if (ret)
+                goto out;
 
         lock_extent_bits(&BTRFS_I(inode)->io_tree, 0, i_size_read(inode) - 1,
                          0, &cached_state);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ada4d24ed11b..8bb013672aee 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3632,25 +3632,28 @@ static void btrfs_read_locked_inode(struct inode *inode)
         BTRFS_I(inode)->generation = btrfs_inode_generation(leaf, inode_item);
         BTRFS_I(inode)->last_trans = btrfs_inode_transid(leaf, inode_item);
 
+        inode->i_version = btrfs_inode_sequence(leaf, inode_item);
+        inode->i_generation = BTRFS_I(inode)->generation;
+        inode->i_rdev = 0;
+        rdev = btrfs_inode_rdev(leaf, inode_item);
+
+        BTRFS_I(inode)->index_cnt = (u64)-1;
+        BTRFS_I(inode)->flags = btrfs_inode_flags(leaf, inode_item);
+
+cache_index:
         /*
          * If we were modified in the current generation and evicted from memory
          * and then re-read we need to do a full sync since we don't have any
          * idea about which extents were modified before we were evicted from
          * cache.
+         *
+         * This is required for both inode re-read from disk and delayed inode
+         * in delayed_nodes_tree.
          */
         if (BTRFS_I(inode)->last_trans == root->fs_info->generation)
                 set_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
                         &BTRFS_I(inode)->runtime_flags);
 
-        inode->i_version = btrfs_inode_sequence(leaf, inode_item);
-        inode->i_generation = BTRFS_I(inode)->generation;
-        inode->i_rdev = 0;
-        rdev = btrfs_inode_rdev(leaf, inode_item);
-
-        BTRFS_I(inode)->index_cnt = (u64)-1;
-        BTRFS_I(inode)->flags = btrfs_inode_flags(leaf, inode_item);
-
-cache_index:
         path->slots[0]++;
         if (inode->i_nlink != 1 ||
             path->slots[0] >= btrfs_header_nritems(leaf))
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index b05653f182c2..1c22c6518504 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2410,7 +2410,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
                         "Attempt to delete subvolume %llu during send",
                         dest->root_key.objectid);
                 err = -EPERM;
-                goto out_dput;
+                goto out_unlock_inode;
         }
 
         d_invalidate(dentry);
@@ -2505,6 +2505,7 @@ out_up_write:
                                 root_flags & ~BTRFS_ROOT_SUBVOL_DEAD);
                 spin_unlock(&dest->root_item_lock);
         }
+out_unlock_inode:
         mutex_unlock(&inode->i_mutex);
         if (!err) {
                 shrink_dcache_sb(root->fs_info->sb);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 8bcd2a007517..96aebf3bcd5b 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1058,6 +1058,7 @@ static int contains_pending_extent(struct btrfs_trans_handle *trans,
         struct extent_map *em;
         struct list_head *search_list = &trans->transaction->pending_chunks;
         int ret = 0;
+        u64 physical_start = *start;
 
 again:
         list_for_each_entry(em, search_list, list) {
@@ -1068,9 +1069,9 @@ again:
                 for (i = 0; i < map->num_stripes; i++) {
                         if (map->stripes[i].dev != device)
                                 continue;
-                        if (map->stripes[i].physical >= *start + len ||
+                        if (map->stripes[i].physical >= physical_start + len ||
                             map->stripes[i].physical + em->orig_block_len <=
-                            *start)
+                            physical_start)
                                 continue;
                         *start = map->stripes[i].physical +
                                 em->orig_block_len;
@@ -1193,8 +1194,14 @@ again:
                          */
                         if (contains_pending_extent(trans, device,
                                                     &search_start,
-                                                    hole_size))
-                                hole_size = 0;
+                                                    hole_size)) {
+                                if (key.offset >= search_start) {
+                                        hole_size = key.offset - search_start;
+                                } else {
+                                        WARN_ON_ONCE(1);
+                                        hole_size = 0;
+                                }
+                        }
 
                         if (hole_size > max_hole_size) {
                                 max_hole_start = search_start;
diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index da94e41bdbf6..537356742091 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -173,5 +173,5 @@ MODULE_LICENSE("GPL");
 MODULE_VERSION("0.0.2");
 MODULE_DESCRIPTION("Simple RAM filesystem for user driven kernel subsystem configuration.");
 
-module_init(configfs_init);
+core_initcall(configfs_init);
 module_exit(configfs_exit);
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index 59fedbcf8798..86a2121828c3 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -121,7 +121,7 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,
         int len, i;
         int err = -ENOMEM;
 
-        entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+        entry = kzalloc(sizeof(*entry), GFP_KERNEL);
         if (!entry)
                 return err;
 
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index 18228c201f7f..024f2284d3f6 100644
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -64,8 +64,8 @@ config EXT4_FS_SECURITY
           If you are not using a security module that requires using
           extended attributes for file security labels, say N.
 
-config EXT4_FS_ENCRYPTION
-        bool "Ext4 Encryption"
+config EXT4_ENCRYPTION
+        tristate "Ext4 Encryption"
         depends on EXT4_FS
         select CRYPTO_AES
         select CRYPTO_CBC
@@ -81,6 +81,11 @@ config EXT4_FS_ENCRYPTION
           efficient since it avoids caching the encrypted and
           decrypted pages in the page cache.
 
+config EXT4_FS_ENCRYPTION
+        bool
+        default y
+        depends on EXT4_ENCRYPTION
+
 config EXT4_DEBUG
         bool "EXT4 debugging support"
         depends on EXT4_FS
diff --git a/fs/ext4/crypto_fname.c b/fs/ext4/crypto_fname.c
index ca2f5948c1ac..fded02f72299 100644
--- a/fs/ext4/crypto_fname.c
+++ b/fs/ext4/crypto_fname.c
@@ -66,6 +66,7 @@ static int ext4_fname_encrypt(struct ext4_fname_crypto_ctx *ctx,
         int res = 0;
         char iv[EXT4_CRYPTO_BLOCK_SIZE];
         struct scatterlist sg[1];
+        int padding = 4 << (ctx->flags & EXT4_POLICY_FLAGS_PAD_MASK);
         char *workbuf;
 
         if (iname->len <= 0 || iname->len > ctx->lim)
@@ -73,6 +74,7 @@ static int ext4_fname_encrypt(struct ext4_fname_crypto_ctx *ctx,
 
         ciphertext_len = (iname->len < EXT4_CRYPTO_BLOCK_SIZE) ?
                 EXT4_CRYPTO_BLOCK_SIZE : iname->len;
+        ciphertext_len = ext4_fname_crypto_round_up(ciphertext_len, padding);
         ciphertext_len = (ciphertext_len > ctx->lim)
                         ? ctx->lim : ciphertext_len;
 
@@ -101,7 +103,7 @@ static int ext4_fname_encrypt(struct ext4_fname_crypto_ctx *ctx,
         /* Create encryption request */
         sg_init_table(sg, 1);
         sg_set_page(sg, ctx->workpage, PAGE_SIZE, 0);
-        ablkcipher_request_set_crypt(req, sg, sg, iname->len, iv);
+        ablkcipher_request_set_crypt(req, sg, sg, ciphertext_len, iv);
         res = crypto_ablkcipher_encrypt(req);
         if (res == -EINPROGRESS || res == -EBUSY) {
                 BUG_ON(req->base.data != &ecr);
@@ -198,106 +200,57 @@ static int ext4_fname_decrypt(struct ext4_fname_crypto_ctx *ctx,
         return oname->len;
 }
 
+static const char *lookup_table =
+        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+,";
+
 /**
  * ext4_fname_encode_digest() -
  *
  * Encodes the input digest using characters from the set [a-zA-Z0-9_+].
  * The encoded string is roughly 4/3 times the size of the input string.
  */
-int ext4_fname_encode_digest(char *dst, char *src, u32 len)
+static int digest_encode(const char *src, int len, char *dst)
 {
-        static const char *lookup_table =
-                "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_+";
-        u32 current_chunk, num_chunks, i;
-        char tmp_buf[3];
-        u32 c0, c1, c2, c3;
-
-        current_chunk = 0;
-        num_chunks = len/3;
-        for (i = 0; i < num_chunks; i++) {
-                c0 = src[3*i] & 0x3f;
-                c1 = (((src[3*i]>>6)&0x3) | ((src[3*i+1] & 0xf)<<2)) & 0x3f;
-                c2 = (((src[3*i+1]>>4)&0xf) | ((src[3*i+2] & 0x3)<<4)) & 0x3f;
-                c3 = (src[3*i+2]>>2) & 0x3f;
-                dst[4*i] = lookup_table[c0];
-                dst[4*i+1] = lookup_table[c1];
-                dst[4*i+2] = lookup_table[c2];
-                dst[4*i+3] = lookup_table[c3];
-        }
-        if (i*3 < len) {
-                memset(tmp_buf, 0, 3);
-                memcpy(tmp_buf, &src[3*i], len-3*i);
-                c0 = tmp_buf[0] & 0x3f;
-                c1 = (((tmp_buf[0]>>6)&0x3) | ((tmp_buf[1] & 0xf)<<2)) & 0x3f;
-                c2 = (((tmp_buf[1]>>4)&0xf) | ((tmp_buf[2] & 0x3)<<4)) & 0x3f;
-                c3 = (tmp_buf[2]>>2) & 0x3f;
-                dst[4*i] = lookup_table[c0];
-                dst[4*i+1] = lookup_table[c1];
-                dst[4*i+2] = lookup_table[c2];
-                dst[4*i+3] = lookup_table[c3];
+        int i = 0, bits = 0, ac = 0;
+        char *cp = dst;
+
+        while (i < len) {
+                ac += (((unsigned char) src[i]) << bits);
+                bits += 8;
+                do {
+                        *cp++ = lookup_table[ac & 0x3f];
+                        ac >>= 6;
+                        bits -= 6;
+                } while (bits >= 6);
                 i++;
         }
-        return (i * 4);
+        if (bits)
+                *cp++ = lookup_table[ac & 0x3f];
+        return cp - dst;
 }
 
-/**
- * ext4_fname_hash() -
- *
- * This function computes the hash of the input filename, and sets the output
- * buffer to the *encoded* digest.  It returns the length of the digest as its
- * return value.  Errors are returned as negative numbers.  We trust the caller
- * to allocate sufficient memory to oname string.
- */
-static int ext4_fname_hash(struct ext4_fname_crypto_ctx *ctx,
-                           const struct ext4_str *iname,
-                           struct ext4_str *oname)
+static int digest_decode(const char *src, int len, char *dst)
 {
-        struct scatterlist sg;
-        struct hash_desc desc = {
-                .tfm = (struct crypto_hash *)ctx->htfm,
-                .flags = CRYPTO_TFM_REQ_MAY_SLEEP
-        };
-        int res = 0;
-
-        if (iname->len <= EXT4_FNAME_CRYPTO_DIGEST_SIZE) {
-                res = ext4_fname_encode_digest(oname->name, iname->name,
-                                               iname->len);
-                oname->len = res;
-                return res;
-        }
-
-        sg_init_one(&sg, iname->name, iname->len);
-        res = crypto_hash_init(&desc);
-        if (res) {
-                printk(KERN_ERR
-                       "%s: Error initializing crypto hash; res = [%d]\n",
-                       __func__, res);
-                goto out;
-        }
-        res = crypto_hash_update(&desc, &sg, iname->len);
-        if (res) {
-                printk(KERN_ERR
-                       "%s: Error updating crypto hash; res = [%d]\n",
-                       __func__, res);
-                goto out;
-        }
-        res = crypto_hash_final(&desc,
-                &oname->name[EXT4_FNAME_CRYPTO_DIGEST_SIZE]);
-        if (res) {
-                printk(KERN_ERR
-                       "%s: Error finalizing crypto hash; res = [%d]\n",
-                       __func__, res);
-                goto out;
+        int i = 0, bits = 0, ac = 0;
+        const char *p;
+        char *cp = dst;
+
+        while (i < len) {
+                p = strchr(lookup_table, src[i]);
+                if (p == NULL || src[i] == 0)
+                        return -2;
+                ac += (p - lookup_table) << bits;
+                bits += 6;
+                if (bits >= 8) {
+                        *cp++ = ac & 0xff;
+                        ac >>= 8;
+                        bits -= 8;
+                }
+                i++;
         }
-        /* Encode the digest as a printable string--this will increase the
-         * size of the digest */
-        oname->name[0] = 'I';
-        res = ext4_fname_encode_digest(oname->name+1,
-                &oname->name[EXT4_FNAME_CRYPTO_DIGEST_SIZE],
-                EXT4_FNAME_CRYPTO_DIGEST_SIZE) + 1;
-        oname->len = res;
-out:
-        return res;
+        if (ac)
+                return -1;
+        return cp - dst;
 }
 
 /**
@@ -405,6 +358,7 @@ struct ext4_fname_crypto_ctx *ext4_get_fname_crypto_ctx(
         if (IS_ERR(ctx))
                 return ctx;
 
+        ctx->flags = ei->i_crypt_policy_flags;
         if (ctx->has_valid_key) {
                 if (ctx->key.mode != EXT4_ENCRYPTION_MODE_AES_256_CTS) {
                         printk_once(KERN_WARNING
@@ -517,6 +471,7 @@ int ext4_fname_crypto_namelen_on_disk(struct ext4_fname_crypto_ctx *ctx,
                                       u32 namelen)
 {
         u32 ciphertext_len;
+        int padding = 4 << (ctx->flags & EXT4_POLICY_FLAGS_PAD_MASK);
 
         if (ctx == NULL)
                 return -EIO;
@@ -524,6 +479,7 @@ int ext4_fname_crypto_namelen_on_disk(struct ext4_fname_crypto_ctx *ctx,
                 return -EACCES;
         ciphertext_len = (namelen < EXT4_CRYPTO_BLOCK_SIZE) ?
                 EXT4_CRYPTO_BLOCK_SIZE : namelen;
+        ciphertext_len = ext4_fname_crypto_round_up(ciphertext_len, padding);
         ciphertext_len = (ciphertext_len > ctx->lim)
                         ? ctx->lim : ciphertext_len;
         return (int) ciphertext_len;
@@ -539,10 +495,13 @@ int ext4_fname_crypto_alloc_buffer(struct ext4_fname_crypto_ctx *ctx,
                                    u32 ilen, struct ext4_str *crypto_str)
 {
         unsigned int olen;
+        int padding = 4 << (ctx->flags & EXT4_POLICY_FLAGS_PAD_MASK);
 
         if (!ctx)
                 return -EIO;
-        olen = ext4_fname_crypto_round_up(ilen, EXT4_CRYPTO_BLOCK_SIZE);
+        if (padding < EXT4_CRYPTO_BLOCK_SIZE)
+                padding = EXT4_CRYPTO_BLOCK_SIZE;
+        olen = ext4_fname_crypto_round_up(ilen, padding);
         crypto_str->len = olen;
         if (olen < EXT4_FNAME_CRYPTO_DIGEST_SIZE*2)
                 olen = EXT4_FNAME_CRYPTO_DIGEST_SIZE*2;
@@ -571,9 +530,13 @@ void ext4_fname_crypto_free_buffer(struct ext4_str *crypto_str)
  * ext4_fname_disk_to_usr() - converts a filename from disk space to user space
  */
 int _ext4_fname_disk_to_usr(struct ext4_fname_crypto_ctx *ctx,
-                           const struct ext4_str *iname,
-                           struct ext4_str *oname)
+                            struct dx_hash_info *hinfo,
+                            const struct ext4_str *iname,
+                            struct ext4_str *oname)
 {
+        char buf[24];
+        int ret;
+
         if (ctx == NULL)
                 return -EIO;
         if (iname->len < 3) {
@@ -587,18 +550,33 @@ int _ext4_fname_disk_to_usr(struct ext4_fname_crypto_ctx *ctx,
         }
         if (ctx->has_valid_key)
                 return ext4_fname_decrypt(ctx, iname, oname);
-        else
-                return ext4_fname_hash(ctx, iname, oname);
+
+        if (iname->len <= EXT4_FNAME_CRYPTO_DIGEST_SIZE) {
+                ret = digest_encode(iname->name, iname->len, oname->name);
+                oname->len = ret;
+                return ret;
+        }
+        if (hinfo) {
+                memcpy(buf, &hinfo->hash, 4);
+                memcpy(buf+4, &hinfo->minor_hash, 4);
+        } else
+                memset(buf, 0, 8);
+        memcpy(buf + 8, iname->name + iname->len - 16, 16);
+        oname->name[0] = '_';
+        ret = digest_encode(buf, 24, oname->name+1);
+        oname->len = ret + 1;
+        return ret + 1;
 }
 
 int ext4_fname_disk_to_usr(struct ext4_fname_crypto_ctx *ctx,
+                           struct dx_hash_info *hinfo,
                            const struct ext4_dir_entry_2 *de,
                            struct ext4_str *oname)
 {
         struct ext4_str iname = {.name = (unsigned char *) de->name,
                                  .len = de->name_len };
 
-        return _ext4_fname_disk_to_usr(ctx, &iname, oname);
+        return _ext4_fname_disk_to_usr(ctx, hinfo, &iname, oname);
 }
 
 
@@ -640,10 +618,11 @@ int ext4_fname_usr_to_hash(struct ext4_fname_crypto_ctx *ctx,
                             const struct qstr *iname,
                             struct dx_hash_info *hinfo)
 {
-        struct ext4_str tmp, tmp2;
+        struct ext4_str tmp;
         int ret = 0;
+        char buf[EXT4_FNAME_CRYPTO_DIGEST_SIZE+1];
 
-        if (!ctx || !ctx->has_valid_key ||
+        if (!ctx ||
             ((iname->name[0] == '.') &&
              ((iname->len == 1) ||
               ((iname->name[1] == '.') && (iname->len == 2))))) {
@@ -651,59 +630,90 @@ int ext4_fname_usr_to_hash(struct ext4_fname_crypto_ctx *ctx,
                 return 0;
         }
 
+        if (!ctx->has_valid_key && iname->name[0] == '_') {
+                if (iname->len != 33)
+                        return -ENOENT;
+                ret = digest_decode(iname->name+1, iname->len, buf);
+                if (ret != 24)
+                        return -ENOENT;
+                memcpy(&hinfo->hash, buf, 4);
+                memcpy(&hinfo->minor_hash, buf + 4, 4);
+                return 0;
+        }
+
+        if (!ctx->has_valid_key && iname->name[0] != '_') {
+                if (iname->len > 43)
+                        return -ENOENT;
+                ret = digest_decode(iname->name, iname->len, buf);
+                ext4fs_dirhash(buf, ret, hinfo);
+                return 0;
+        }
+
         /* First encrypt the plaintext name */
         ret = ext4_fname_crypto_alloc_buffer(ctx, iname->len, &tmp);
         if (ret < 0)
                 return ret;
 
         ret = ext4_fname_encrypt(ctx, iname, &tmp);
-        if (ret < 0)
-                goto out;
-
-        tmp2.len = (4 * ((EXT4_FNAME_CRYPTO_DIGEST_SIZE + 2) / 3)) + 1;
-        tmp2.name = kmalloc(tmp2.len + 1, GFP_KERNEL);
-        if (tmp2.name == NULL) {
-                ret = -ENOMEM;
-                goto out;
+        if (ret >= 0) {
+                ext4fs_dirhash(tmp.name, tmp.len, hinfo);
+                ret = 0;
         }
 
-        ret = ext4_fname_hash(ctx, &tmp, &tmp2);
-        if (ret > 0)
-                ext4fs_dirhash(tmp2.name, tmp2.len, hinfo);
-        ext4_fname_crypto_free_buffer(&tmp2);
-out:
         ext4_fname_crypto_free_buffer(&tmp);
         return ret;
 }
 
-/**
- * ext4_fname_disk_to_htree() - converts a filename from disk space to htree-access string
- */
-int ext4_fname_disk_to_hash(struct ext4_fname_crypto_ctx *ctx,
-                            const struct ext4_dir_entry_2 *de,
-                            struct dx_hash_info *hinfo)
+int ext4_fname_match(struct ext4_fname_crypto_ctx *ctx, struct ext4_str *cstr,
+                     int len, const char * const name,
+                     struct ext4_dir_entry_2 *de)
 {
-        struct ext4_str iname = {.name = (unsigned char *) de->name,
-                                 .len = de->name_len};
-        struct ext4_str tmp;
-        int ret;
+        int ret = -ENOENT;
+        int bigname = (*name == '_');
 
-        if (!ctx ||
-            ((iname.name[0] == '.') &&
-             ((iname.len == 1) ||
-              ((iname.name[1] == '.') && (iname.len == 2))))) {
-                ext4fs_dirhash(iname.name, iname.len, hinfo);
-                return 0;
+        if (ctx->has_valid_key) {
+                if (cstr->name == NULL) {
+                        struct qstr istr;
+
+                        ret = ext4_fname_crypto_alloc_buffer(ctx, len, cstr);
+                        if (ret < 0)
+                                goto errout;
+                        istr.name = name;
+                        istr.len = len;
+                        ret = ext4_fname_encrypt(ctx, &istr, cstr);
+                        if (ret < 0)
+                                goto errout;
+                }
+        } else {
+                if (cstr->name == NULL) {
+                        cstr->name = kmalloc(32, GFP_KERNEL);
+                        if (cstr->name == NULL)
+                                return -ENOMEM;
+                        if ((bigname && (len != 33)) ||
+                            (!bigname && (len > 43)))
+                                goto errout;
+                        ret = digest_decode(name+bigname, len-bigname,
+                                            cstr->name);
+                        if (ret < 0) {
+                                ret = -ENOENT;
+                                goto errout;
+                        }
+                        cstr->len = ret;
+                }
+                if (bigname) {
+                        if (de->name_len < 16)
+                                return 0;
+                        ret = memcmp(de->name + de->name_len - 16,
+                                     cstr->name + 8, 16);
+                        return (ret == 0) ? 1 : 0;
+                }
         }
-
-        tmp.len = (4 * ((EXT4_FNAME_CRYPTO_DIGEST_SIZE + 2) / 3)) + 1;
-        tmp.name = kmalloc(tmp.len + 1, GFP_KERNEL);
-        if (tmp.name == NULL)
-                return -ENOMEM;
-
-        ret = ext4_fname_hash(ctx, &iname, &tmp);
-        if (ret > 0)
-                ext4fs_dirhash(tmp.name, tmp.len, hinfo);
-        ext4_fname_crypto_free_buffer(&tmp);
+        if (de->name_len != cstr->len)
+                return 0;
+        ret = memcmp(de->name, cstr->name, cstr->len);
+        return (ret == 0) ? 1 : 0;
+errout:
+        kfree(cstr->name);
+        cstr->name = NULL;
         return ret;
 }
diff --git a/fs/ext4/crypto_key.c b/fs/ext4/crypto_key.c
index c8392af8abbb..52170d0b7c40 100644
--- a/fs/ext4/crypto_key.c
+++ b/fs/ext4/crypto_key.c
@@ -110,6 +110,7 @@ int ext4_generate_encryption_key(struct inode *inode)
         }
         res = 0;
 
+        ei->i_crypt_policy_flags = ctx.flags;
         if (S_ISREG(inode->i_mode))
                 crypt_key->mode = ctx.contents_encryption_mode;
         else if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))
diff --git a/fs/ext4/crypto_policy.c b/fs/ext4/crypto_policy.c
index 30eaf9e9864a..a6d6291aea16 100644
--- a/fs/ext4/crypto_policy.c
+++ b/fs/ext4/crypto_policy.c
@@ -37,6 +37,8 @@ static int ext4_is_encryption_context_consistent_with_policy(
                 return 0;
         return (memcmp(ctx.master_key_descriptor, policy->master_key_descriptor,
                         EXT4_KEY_DESCRIPTOR_SIZE) == 0 &&
+                (ctx.flags ==
+                 policy->flags) &&
                 (ctx.contents_encryption_mode ==
                  policy->contents_encryption_mode) &&
                 (ctx.filenames_encryption_mode ==
@@ -56,25 +58,25 @@ static int ext4_create_encryption_context_from_policy(
                 printk(KERN_WARNING
                        "%s: Invalid contents encryption mode %d\n", __func__,
                         policy->contents_encryption_mode);
-                res = -EINVAL;
-                goto out;
+                return -EINVAL;
         }
         if (!ext4_valid_filenames_enc_mode(policy->filenames_encryption_mode)) {
                 printk(KERN_WARNING
                        "%s: Invalid filenames encryption mode %d\n", __func__,
                         policy->filenames_encryption_mode);
-                res = -EINVAL;
-                goto out;
+                return -EINVAL;
         }
+        if (policy->flags & ~EXT4_POLICY_FLAGS_VALID)
+                return -EINVAL;
         ctx.contents_encryption_mode = policy->contents_encryption_mode;
         ctx.filenames_encryption_mode = policy->filenames_encryption_mode;
+        ctx.flags = policy->flags;
         BUILD_BUG_ON(sizeof(ctx.nonce) != EXT4_KEY_DERIVATION_NONCE_SIZE);
         get_random_bytes(ctx.nonce, EXT4_KEY_DERIVATION_NONCE_SIZE);
 
         res = ext4_xattr_set(inode, EXT4_XATTR_INDEX_ENCRYPTION,
                              EXT4_XATTR_NAME_ENCRYPTION_CONTEXT, &ctx,
                              sizeof(ctx), 0);
-out:
         if (!res)
                 ext4_set_inode_flag(inode, EXT4_INODE_ENCRYPT);
         return res;
@@ -115,6 +117,7 @@ int ext4_get_policy(struct inode *inode, struct ext4_encryption_policy *policy)
         policy->version = 0;
         policy->contents_encryption_mode = ctx.contents_encryption_mode;
         policy->filenames_encryption_mode = ctx.filenames_encryption_mode;
+        policy->flags = ctx.flags;
         memcpy(&policy->master_key_descriptor, ctx.master_key_descriptor,
                EXT4_KEY_DESCRIPTOR_SIZE);
         return 0;
@@ -176,6 +179,7 @@ int ext4_inherit_context(struct inode *parent, struct inode *child)
                                 EXT4_ENCRYPTION_MODE_AES_256_XTS;
                         ctx.filenames_encryption_mode =
                                 EXT4_ENCRYPTION_MODE_AES_256_CTS;
+                        ctx.flags = 0;
                         memset(ctx.master_key_descriptor, 0x42,
                                EXT4_KEY_DESCRIPTOR_SIZE);
                         res = 0;
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 61db51a5ce4c..5665d82d2332 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -249,7 +249,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
                                 } else {
                                         /* Directory is encrypted */
                                         err = ext4_fname_disk_to_usr(enc_ctx,
-                                                        de, &fname_crypto_str);
+                                                NULL, de, &fname_crypto_str);
                                         if (err < 0)
                                                 goto errout;
                                         if (!dir_emit(ctx,
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index ef267adce19a..009a0590b20f 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -911,6 +911,7 @@ struct ext4_inode_info {
 
         /* on-disk additional length */
         __u16 i_extra_isize;
+        char i_crypt_policy_flags;
 
         /* Indicate the inline data space. */
         u16 i_inline_off;
@@ -1066,12 +1067,6 @@ extern void ext4_set_bits(void *bm, int cur, int len);
 /* Metadata checksum algorithm codes */
 #define EXT4_CRC32C_CHKSUM              1
 
-/* Encryption algorithms */
-#define EXT4_ENCRYPTION_MODE_INVALID            0
-#define EXT4_ENCRYPTION_MODE_AES_256_XTS        1
-#define EXT4_ENCRYPTION_MODE_AES_256_GCM        2
-#define EXT4_ENCRYPTION_MODE_AES_256_CBC        3
-
 /*
  * Structure of the super block
  */
@@ -2093,9 +2088,11 @@ u32 ext4_fname_crypto_round_up(u32 size, u32 blksize);
 int ext4_fname_crypto_alloc_buffer(struct ext4_fname_crypto_ctx *ctx,
                                    u32 ilen, struct ext4_str *crypto_str);
 int _ext4_fname_disk_to_usr(struct ext4_fname_crypto_ctx *ctx,
+                            struct dx_hash_info *hinfo,
                             const struct ext4_str *iname,
                             struct ext4_str *oname);
 int ext4_fname_disk_to_usr(struct ext4_fname_crypto_ctx *ctx,
+                           struct dx_hash_info *hinfo,
                            const struct ext4_dir_entry_2 *de,
                            struct ext4_str *oname);
 int ext4_fname_usr_to_disk(struct ext4_fname_crypto_ctx *ctx,
@@ -2104,11 +2101,12 @@ int ext4_fname_usr_to_disk(struct ext4_fname_crypto_ctx *ctx,
 int ext4_fname_usr_to_hash(struct ext4_fname_crypto_ctx *ctx,
                            const struct qstr *iname,
                            struct dx_hash_info *hinfo);
-int ext4_fname_disk_to_hash(struct ext4_fname_crypto_ctx *ctx,
-                            const struct ext4_dir_entry_2 *de,
-                            struct dx_hash_info *hinfo);
 int ext4_fname_crypto_namelen_on_disk(struct ext4_fname_crypto_ctx *ctx,
                                       u32 namelen);
+int ext4_fname_match(struct ext4_fname_crypto_ctx *ctx, struct ext4_str *cstr,
+                     int len, const char * const name,
+                     struct ext4_dir_entry_2 *de);
+
 
 #ifdef CONFIG_EXT4_FS_ENCRYPTION
 void ext4_put_fname_crypto_ctx(struct ext4_fname_crypto_ctx **ctx);
diff --git a/fs/ext4/ext4_crypto.h b/fs/ext4/ext4_crypto.h
index c2ba35a914b6..d75159c101ce 100644
--- a/fs/ext4/ext4_crypto.h
+++ b/fs/ext4/ext4_crypto.h
@@ -20,12 +20,20 @@ struct ext4_encryption_policy {
         char version;
         char contents_encryption_mode;
         char filenames_encryption_mode;
+        char flags;
         char master_key_descriptor[EXT4_KEY_DESCRIPTOR_SIZE];
 } __attribute__((__packed__));
 
 #define EXT4_ENCRYPTION_CONTEXT_FORMAT_V1 1
 #define EXT4_KEY_DERIVATION_NONCE_SIZE 16
 
+#define EXT4_POLICY_FLAGS_PAD_4         0x00
+#define EXT4_POLICY_FLAGS_PAD_8         0x01
+#define EXT4_POLICY_FLAGS_PAD_16        0x02
+#define EXT4_POLICY_FLAGS_PAD_32        0x03
+#define EXT4_POLICY_FLAGS_PAD_MASK      0x03
+#define EXT4_POLICY_FLAGS_VALID         0x03
+
 /**
  * Encryption context for inode
  *
@@ -41,7 +49,7 @@ struct ext4_encryption_context {
         char format;
         char contents_encryption_mode;
         char filenames_encryption_mode;
-        char reserved;
+        char flags;
         char master_key_descriptor[EXT4_KEY_DESCRIPTOR_SIZE];
         char nonce[EXT4_KEY_DERIVATION_NONCE_SIZE];
 } __attribute__((__packed__));
@@ -120,6 +128,7 @@ struct ext4_fname_crypto_ctx {
         struct crypto_hash *htfm;
         struct page *workpage;
         struct ext4_encryption_key key;
+        unsigned flags : 8;
         unsigned has_valid_key : 1;
         unsigned ctfm_key_is_ready : 1;
 };
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 973816bfe4a9..d74e08029643 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4927,13 +4927,6 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
         if (ret)
                 return ret;
 
-        /*
-         * currently supporting (pre)allocate mode for extent-based
-         * files _only_
-         */
-        if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
-                return -EOPNOTSUPP;
-
         if (mode & FALLOC_FL_COLLAPSE_RANGE)
                 return ext4_collapse_range(inode, offset, len);
 
@@ -4955,6 +4948,14 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
 
         mutex_lock(&inode->i_mutex);
 
+        /*
+         * We only support preallocation for extent-based files only
+         */
+        if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) {
+                ret = -EOPNOTSUPP;
+                goto out;
+        }
+
         if (!(mode & FALLOC_FL_KEEP_SIZE) &&
              offset + len > i_size_read(inode)) {
                 new_size = offset + len;
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index d33d5a6852b9..26724aeece73 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -703,6 +703,14 @@ int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
 
         BUG_ON(end < lblk);
 
+        if ((status & EXTENT_STATUS_DELAYED) &&
+            (status & EXTENT_STATUS_WRITTEN)) {
+                ext4_warning(inode->i_sb, "Inserting extent [%u/%u] as "
+                                " delayed and written which can potentially "
+                                " cause data loss.\n", lblk, len);
+                WARN_ON(1);
+        }
+
         newes.es_lblk = lblk;
         newes.es_len = len;
         ext4_es_store_pblock_status(&newes, pblk, status);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index cbd0654a2675..55b187c3bac1 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -531,6 +531,7 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
                 status = map->m_flags & EXT4_MAP_UNWRITTEN ?
                                 EXTENT_STATUS_UNWRITTEN : EXTENT_STATUS_WRITTEN;
                 if (!(flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) &&
+                    !(status & EXTENT_STATUS_WRITTEN) &&
                     ext4_find_delalloc_range(inode, map->m_lblk,
                                              map->m_lblk + map->m_len - 1))
                         status |= EXTENT_STATUS_DELAYED;
@@ -635,6 +636,7 @@ found:
                 status = map->m_flags & EXT4_MAP_UNWRITTEN ?
                                 EXTENT_STATUS_UNWRITTEN : EXTENT_STATUS_WRITTEN;
                 if (!(flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) &&
+                    !(status & EXTENT_STATUS_WRITTEN) &&
                     ext4_find_delalloc_range(inode, map->m_lblk,
                                              map->m_lblk + map->m_len - 1))
                         status |= EXTENT_STATUS_DELAYED;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 7223b0b4bc38..814f3beb4369 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -640,7 +640,7 @@ static struct stats dx_show_leaf(struct inode *dir,
                                                 ext4_put_fname_crypto_ctx(&ctx);
                                                 ctx = NULL;
                                         }
-                                        res = ext4_fname_disk_to_usr(ctx, de,
+                                        res = ext4_fname_disk_to_usr(ctx, NULL, de,
                                                         &fname_crypto_str);
                                         if (res < 0) {
                                                 printk(KERN_WARNING "Error "
@@ -653,15 +653,8 @@ static struct stats dx_show_leaf(struct inode *dir,
                                                 name = fname_crypto_str.name;
                                                 len = fname_crypto_str.len;
                                         }
-                                        res = ext4_fname_disk_to_hash(ctx, de,
-                                                                      &h);
-                                        if (res < 0) {
-                                                printk(KERN_WARNING "Error "
-                                                        "converting filename "
-                                                        "from disk to htree"
-                                                        "\n");
-                                                h.hash = 0xDEADBEEF;
-                                        }
+                                        ext4fs_dirhash(de->name, de->name_len,
+                                                       &h);
                                         printk("%*.s:(E)%x.%u ", len, name,
                                                h.hash, (unsigned) ((char *) de
                                                                    - base));
@@ -1008,15 +1001,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
                         /* silently ignore the rest of the block */
                         break;
                 }
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
-                err = ext4_fname_disk_to_hash(ctx, de, hinfo);
-                if (err < 0) {
-                        count = err;
-                        goto errout;
-                }
-#else
                 ext4fs_dirhash(de->name, de->name_len, hinfo);
-#endif
                 if ((hinfo->hash < start_hash) ||
                     ((hinfo->hash == start_hash) &&
                      (hinfo->minor_hash < start_minor_hash)))
@@ -1032,7 +1017,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
                                    &tmp_str);
                 } else {
                         /* Directory is encrypted */
-                        err = ext4_fname_disk_to_usr(ctx, de,
+                        err = ext4_fname_disk_to_usr(ctx, hinfo, de,
                                                      &fname_crypto_str);
                         if (err < 0) {
                                 count = err;
@@ -1193,26 +1178,10 @@ static int dx_make_map(struct inode *dir, struct ext4_dir_entry_2 *de,
         int count = 0;
         char *base = (char *) de;
         struct dx_hash_info h = *hinfo;
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
-        struct ext4_fname_crypto_ctx *ctx = NULL;
-        int err;
-
-        ctx = ext4_get_fname_crypto_ctx(dir, EXT4_NAME_LEN);
-        if (IS_ERR(ctx))
-                return PTR_ERR(ctx);
-#endif
 
         while ((char *) de < base + blocksize) {
                 if (de->name_len && de->inode) {
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
-                        err = ext4_fname_disk_to_hash(ctx, de, &h);
-                        if (err < 0) {
-                                ext4_put_fname_crypto_ctx(&ctx);
-                                return err;
-                        }
-#else
                         ext4fs_dirhash(de->name, de->name_len, &h);
-#endif
                         map_tail--;
                         map_tail->hash = h.hash;
                         map_tail->offs = ((char *) de - base)>>2;
@@ -1223,9 +1192,6 @@ static int dx_make_map(struct inode *dir, struct ext4_dir_entry_2 *de,
                 /* XXX: do we need to check rec_len == 0 case? -Chris */
                 de = ext4_next_entry(de, blocksize);
         }
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
-        ext4_put_fname_crypto_ctx(&ctx);
-#endif
         return count;
 }
 
@@ -1287,16 +1253,8 @@ static inline int ext4_match(struct ext4_fname_crypto_ctx *ctx,
                 return 0;
 
 #ifdef CONFIG_EXT4_FS_ENCRYPTION
-        if (ctx) {
-                /* Directory is encrypted */
-                res = ext4_fname_disk_to_usr(ctx, de, fname_crypto_str);
-                if (res < 0)
-                        return res;
-                if (len != res)
-                        return 0;
-                res = memcmp(name, fname_crypto_str->name, len);
-                return (res == 0) ? 1 : 0;
-        }
+        if (ctx)
+                return ext4_fname_match(ctx, fname_crypto_str, len, name, de);
 #endif
         if (len != de->name_len)
                 return 0;
@@ -1324,16 +1282,6 @@ int search_dir(struct buffer_head *bh, char *search_buf, int buf_size,
         if (IS_ERR(ctx))
                 return -1;
 
-        if (ctx != NULL) {
-                /* Allocate buffer to hold maximum name length */
-                res = ext4_fname_crypto_alloc_buffer(ctx, EXT4_NAME_LEN,
-                                                     &fname_crypto_str);
-                if (res < 0) {
-                        ext4_put_fname_crypto_ctx(&ctx);
-                        return -1;
-                }
-        }
-
         de = (struct ext4_dir_entry_2 *)search_buf;
         dlimit = search_buf + buf_size;
         while ((char *) de < dlimit) {
@@ -1872,14 +1820,6 @@ int ext4_find_dest_de(struct inode *dir, struct inode *inode,
                         return res;
                 }
                 reclen = EXT4_DIR_REC_LEN(res);
-
-                /* Allocate buffer to hold maximum name length */
-                res = ext4_fname_crypto_alloc_buffer(ctx, EXT4_NAME_LEN,
-                                                     &fname_crypto_str);
-                if (res < 0) {
-                        ext4_put_fname_crypto_ctx(&ctx);
-                        return -1;
-                }
         }
 
         de = (struct ext4_dir_entry_2 *)buf;
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 8a8ec6293b19..cf0c472047e3 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1432,12 +1432,15 @@ static int ext4_flex_group_add(struct super_block *sb,
                 goto exit;
         /*
          * We will always be modifying at least the superblock and  GDT
-         * block.  If we are adding a group past the last current GDT block,
+         * blocks.  If we are adding a group past the last current GDT block,
          * we will also modify the inode and the dindirect block.  If we
          * are adding a group with superblock/GDT backups  we will also
          * modify each of the reserved GDT dindirect blocks.
          */
-        credit = flex_gd->count * 4 + reserved_gdb;
+        credit = 3;     /* sb, resize inode, resize inode dindirect */
+        /* GDT blocks */
+        credit += 1 + DIV_ROUND_UP(flex_gd->count, EXT4_DESC_PER_BLOCK(sb));
+        credit += reserved_gdb; /* Reserved GDT dindirect blocks */
         handle = ext4_journal_start_sb(sb, EXT4_HT_RESIZE, credit);
         if (IS_ERR(handle)) {
                 err = PTR_ERR(handle);
diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c
index 19f78f20975e..187b78920314 100644
--- a/fs/ext4/symlink.c
+++ b/fs/ext4/symlink.c
@@ -74,7 +74,7 @@ static void *ext4_follow_link(struct dentry *dentry, struct nameidata *nd)
                 goto errout;
         }
         pstr.name = paddr;
-        res = _ext4_fname_disk_to_usr(ctx, &cstr, &pstr);
+        res = _ext4_fname_disk_to_usr(ctx, NULL, &cstr, &pstr);
         if (res < 0)
                 goto errout;
         /* Null-terminate the name */
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index b91b0e10678e..1e1aae669fa8 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1513,6 +1513,7 @@ static int f2fs_write_data_pages(struct address_space *mapping,
 {
         struct inode *inode = mapping->host;
         struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+        bool locked = false;
         int ret;
         long diff;
 
@@ -1533,7 +1534,13 @@ static int f2fs_write_data_pages(struct address_space *mapping,
 
         diff = nr_pages_to_write(sbi, DATA, wbc);
 
+        if (!S_ISDIR(inode->i_mode)) {
+                mutex_lock(&sbi->writepages);
+                locked = true;
+        }
         ret = write_cache_pages(mapping, wbc, __f2fs_writepage, mapping);
+        if (locked)
+                mutex_unlock(&sbi->writepages);
 
         f2fs_submit_merged_bio(sbi, DATA, WRITE);
 
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index d8921cf2ba9a..8de34ab6d5b1 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -625,6 +625,7 @@ struct f2fs_sb_info {
         struct mutex cp_mutex;                  /* checkpoint procedure lock */
         struct rw_semaphore cp_rwsem;           /* blocking FS operations */
         struct rw_semaphore node_write;         /* locking node writes */
+        struct mutex writepages;                /* mutex for writepages() */
         wait_queue_head_t cp_wait;
 
         struct inode_management im[MAX_INO_ENTRY];      /* manage inode cache */
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 7e3794edae42..658e8079aaf9 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -298,16 +298,14 @@ fail:
 
 static void *f2fs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
-        struct page *page;
+        struct page *page = page_follow_link_light(dentry, nd);
 
-        page = page_follow_link_light(dentry, nd);
-        if (IS_ERR(page))
+        if (IS_ERR_OR_NULL(page))
                 return page;
 
         /* this is broken symlink case */
         if (*nd_get_link(nd) == 0) {
-                kunmap(page);
-                page_cache_release(page);
+                page_put_link(dentry, nd, page);
                 return ERR_PTR(-ENOENT);
         }
         return page;
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 160b88346b24..b2dd1b01f076 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1035,6 +1035,7 @@ try_onemore:
         sbi->raw_super = raw_super;
         sbi->raw_super_buf = raw_super_buf;
         mutex_init(&sbi->gc_mutex);
+        mutex_init(&sbi->writepages);
         mutex_init(&sbi->cp_mutex);
         init_rwsem(&sbi->node_write);
         clear_sbi_flag(sbi, SBI_POR_DOING);
diff --git a/fs/namei.c b/fs/namei.c
index 4a8d998b7274..fe30d3be43a8 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1415,6 +1415,7 @@ static int lookup_fast(struct nameidata *nd,
          */
         if (nd->flags & LOOKUP_RCU) {
                 unsigned seq;
+                bool negative;
                 dentry = __d_lookup_rcu(parent, &nd->last, &seq);
                 if (!dentry)
                         goto unlazy;
@@ -1424,8 +1425,11 @@ static int lookup_fast(struct nameidata *nd,
                  * the dentry name information from lookup.
                  */
                 *inode = dentry->d_inode;
+                negative = d_is_negative(dentry);
                 if (read_seqcount_retry(&dentry->d_seq, seq))
                         return -ECHILD;
+                if (negative)
+                        return -ENOENT;
 
                 /*
                  * This sequence count validates that the parent had no
@@ -1472,6 +1476,10 @@ unlazy:
                 goto need_lookup;
         }
 
+        if (unlikely(d_is_negative(dentry))) {
+                dput(dentry);
+                return -ENOENT;
+        }
         path->mnt = mnt;
         path->dentry = dentry;
         err = follow_managed(path, nd->flags);
@@ -1583,10 +1591,10 @@ static inline int walk_component(struct nameidata *nd, struct path *path,
                         goto out_err;
 
                 inode = path->dentry->d_inode;
+                err = -ENOENT;
+                if (d_is_negative(path->dentry))
+                        goto out_path_put;
         }
-        err = -ENOENT;
-        if (d_is_negative(path->dentry))
-                goto out_path_put;
 
         if (should_follow_link(path->dentry, follow)) {
                 if (nd->flags & LOOKUP_RCU) {
@@ -3036,14 +3044,13 @@ retry_lookup:
 
         BUG_ON(nd->flags & LOOKUP_RCU);
         inode = path->dentry->d_inode;
-finish_lookup:
-        /* we _can_ be in RCU mode here */
         error = -ENOENT;
         if (d_is_negative(path->dentry)) {
                 path_to_nameidata(path, nd);
                 goto out;
         }
-
+finish_lookup:
+        /* we _can_ be in RCU mode here */
         if (should_follow_link(path->dentry, !symlink_ok)) {
                 if (nd->flags & LOOKUP_RCU) {
                         if (unlikely(nd->path.mnt != path->mnt ||
@@ -3226,7 +3233,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
 
         if (unlikely(file->f_flags & __O_TMPFILE)) {
                 error = do_tmpfile(dfd, pathname, nd, flags, op, file, &opened);
-                goto out;
+                goto out2;
         }
 
         error = path_init(dfd, pathname, flags, nd);
@@ -3256,6 +3263,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
         }
 out:
         path_cleanup(nd);
+out2:
         if (!(opened & FILE_OPENED)) {
                 BUG_ON(!error);
                 put_filp(file);
diff --git a/fs/namespace.c b/fs/namespace.c
index 1f4f9dac6e5a..1b9e11167bae 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -3179,6 +3179,12 @@ bool fs_fully_visible(struct file_system_type *type)
                 if (mnt->mnt.mnt_sb->s_type != type)
                         continue;
 
+                /* This mount is not fully visible if it's root directory
+                 * is not the root directory of the filesystem.
+                 */
+                if (mnt->mnt.mnt_root != mnt->mnt.mnt_sb->s_root)
+                        continue;
+
                 /* This mount is not fully visible if there are any child mounts
                  * that cover anything except for empty directories.
                  */
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c
index 03d647bf195d..cdefaa331a07 100644
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -181,6 +181,17 @@ nfsd4_block_proc_layoutcommit(struct inode *inode,
 }
 
 const struct nfsd4_layout_ops bl_layout_ops = {
+        /*
+         * Pretend that we send notification to the client.  This is a blatant
+         * lie to force recent Linux clients to cache our device IDs.
+         * We rarely ever change the device ID, so the harm of leaking deviceids
+         * for a while isn't too bad.  Unfortunately RFC5661 is a complete mess
+         * in this regard, but I filed errata 4119 for this a while ago, and
+         * hopefully the Linux client will eventually start caching deviceids
+         * without this again.
+         */
+        .notify_types           =
+                        NOTIFY_DEVICEID4_DELETE | NOTIFY_DEVICEID4_CHANGE,
         .proc_getdeviceinfo     = nfsd4_block_proc_getdeviceinfo,
         .encode_getdeviceinfo   = nfsd4_block_encode_getdeviceinfo,
         .proc_layoutget         = nfsd4_block_proc_layoutget,
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 58277859a467..5694cfb7a47b 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -224,7 +224,7 @@ static int nfs_cb_stat_to_errno(int status)
 }
 
 static int decode_cb_op_status(struct xdr_stream *xdr, enum nfs_opnum4 expected,
-                               enum nfsstat4 *status)
+                               int *status)
 {
         __be32 *p;
         u32 op;
@@ -235,7 +235,7 @@ static int decode_cb_op_status(struct xdr_stream *xdr, enum nfs_opnum4 expected,
         op = be32_to_cpup(p++);
         if (unlikely(op != expected))
                 goto out_unexpected;
-        *status = be32_to_cpup(p);
+        *status = nfs_cb_stat_to_errno(be32_to_cpup(p));
         return 0;
 out_overflow:
         print_overflow_msg(__func__, xdr);
@@ -446,22 +446,16 @@ out_overflow:
 static int decode_cb_sequence4res(struct xdr_stream *xdr,
                                   struct nfsd4_callback *cb)
 {
-        enum nfsstat4 nfserr;
         int status;
 
         if (cb->cb_minorversion == 0)
                 return 0;
 
-        status = decode_cb_op_status(xdr, OP_CB_SEQUENCE, &nfserr);
-        if (unlikely(status))
-                goto out;
-        if (unlikely(nfserr != NFS4_OK))
-                goto out_default;
-        status = decode_cb_sequence4resok(xdr, cb);
-out:
-        return status;
-out_default:
-        return nfs_cb_stat_to_errno(nfserr);
+        status = decode_cb_op_status(xdr, OP_CB_SEQUENCE, &cb->cb_status);
+        if (unlikely(status || cb->cb_status))
+                return status;
+
+        return decode_cb_sequence4resok(xdr, cb);
 }
 
 /*
@@ -524,26 +518,19 @@ static int nfs4_xdr_dec_cb_recall(struct rpc_rqst *rqstp,
                                   struct nfsd4_callback *cb)
 {
         struct nfs4_cb_compound_hdr hdr;
-        enum nfsstat4 nfserr;
         int status;
 
         status = decode_cb_compound4res(xdr, &hdr);
         if (unlikely(status))
-                goto out;
+                return status;
 
         if (cb != NULL) {
                 status = decode_cb_sequence4res(xdr, cb);
-                if (unlikely(status))
-                        goto out;
+                if (unlikely(status || cb->cb_status))
+                        return status;
         }
 
-        status = decode_cb_op_status(xdr, OP_CB_RECALL, &nfserr);
-        if (unlikely(status))
-                goto out;
-        if (unlikely(nfserr != NFS4_OK))
-                status = nfs_cb_stat_to_errno(nfserr);
-out:
-        return status;
+        return decode_cb_op_status(xdr, OP_CB_RECALL, &cb->cb_status);
 }
 
 #ifdef CONFIG_NFSD_PNFS
@@ -621,24 +608,18 @@ static int nfs4_xdr_dec_cb_layout(struct rpc_rqst *rqstp,
                                   struct nfsd4_callback *cb)
 {
         struct nfs4_cb_compound_hdr hdr;
-        enum nfsstat4 nfserr;
         int status;
 
         status = decode_cb_compound4res(xdr, &hdr);
         if (unlikely(status))
-                goto out;
+                return status;
+
         if (cb) {
                 status = decode_cb_sequence4res(xdr, cb);
-                if (unlikely(status))
-                        goto out;
+                if (unlikely(status || cb->cb_status))
+                        return status;
         }
-        status = decode_cb_op_status(xdr, OP_CB_LAYOUTRECALL, &nfserr);
-        if (unlikely(status))
-                goto out;
-        if (unlikely(nfserr != NFS4_OK))
-                status = nfs_cb_stat_to_errno(nfserr);
-out:
-        return status;
+        return decode_cb_op_status(xdr, OP_CB_LAYOUTRECALL, &cb->cb_status);
 }
 #endif /* CONFIG_NFSD_PNFS */
 
@@ -898,13 +879,6 @@ static void nfsd4_cb_prepare(struct rpc_task *task, void *calldata)
                 if (!nfsd41_cb_get_slot(clp, task))
                         return;
         }
-        spin_lock(&clp->cl_lock);
-        if (list_empty(&cb->cb_per_client)) {
-                /* This is the first call, not a restart */
-                cb->cb_done = false;
-                list_add(&cb->cb_per_client, &clp->cl_callbacks);
-        }
-        spin_unlock(&clp->cl_lock);
         rpc_call_start(task);
 }
 
@@ -918,22 +892,33 @@ static void nfsd4_cb_done(struct rpc_task *task, void *calldata)
 
         if (clp->cl_minorversion) {
                 /* No need for lock, access serialized in nfsd4_cb_prepare */
-                ++clp->cl_cb_session->se_cb_seq_nr;
+                if (!task->tk_status)
+                        ++clp->cl_cb_session->se_cb_seq_nr;
                 clear_bit(0, &clp->cl_cb_slot_busy);
                 rpc_wake_up_next(&clp->cl_cb_waitq);
                 dprintk("%s: freed slot, new seqid=%d\n", __func__,
                         clp->cl_cb_session->se_cb_seq_nr);
         }
 
-        if (clp->cl_cb_client != task->tk_client) {
-                /* We're shutting down or changing cl_cb_client; leave
-                 * it to nfsd4_process_cb_update to restart the call if
-                 * necessary. */
+        /*
+         * If the backchannel connection was shut down while this
+         * task was queued, we need to resubmit it after setting up
+         * a new backchannel connection.
+         *
+         * Note that if we lost our callback connection permanently
+         * the submission code will error out, so we don't need to
+         * handle that case here.
+         */
+        if (task->tk_flags & RPC_TASK_KILLED) {
+                task->tk_status = 0;
+                cb->cb_need_restart = true;
                 return;
         }
 
-        if (cb->cb_done)
-                return;
+        if (cb->cb_status) {
+                WARN_ON_ONCE(task->tk_status);
+                task->tk_status = cb->cb_status;
+        }
 
         switch (cb->cb_ops->done(cb, task)) {
         case 0:
@@ -949,21 +934,17 @@ static void nfsd4_cb_done(struct rpc_task *task, void *calldata)
         default:
                 BUG();
         }
-        cb->cb_done = true;
 }
 
 static void nfsd4_cb_release(void *calldata)
 {
         struct nfsd4_callback *cb = calldata;
-        struct nfs4_client *clp = cb->cb_clp;
-
-        if (cb->cb_done) {
-                spin_lock(&clp->cl_lock);
-                list_del(&cb->cb_per_client);
-                spin_unlock(&clp->cl_lock);
 
+        if (cb->cb_need_restart)
+                nfsd4_run_cb(cb);
+        else
                 cb->cb_ops->release(cb);
-        }
+
 }
 
 static const struct rpc_call_ops nfsd4_cb_ops = {
@@ -1058,9 +1039,6 @@ static void nfsd4_process_cb_update(struct nfsd4_callback *cb)
                 nfsd4_mark_cb_down(clp, err);
                 return;
         }
-        /* Yay, the callback channel's back! Restart any callbacks: */
-        list_for_each_entry(cb, &clp->cl_callbacks, cb_per_client)
-                queue_work(callback_wq, &cb->cb_work);
 }
 
 static void
@@ -1071,8 +1049,12 @@ nfsd4_run_cb_work(struct work_struct *work)
         struct nfs4_client *clp = cb->cb_clp;
         struct rpc_clnt *clnt;
 
-        if (cb->cb_ops && cb->cb_ops->prepare)
-                cb->cb_ops->prepare(cb);
+        if (cb->cb_need_restart) {
+                cb->cb_need_restart = false;
+        } else {
+                if (cb->cb_ops && cb->cb_ops->prepare)
+                        cb->cb_ops->prepare(cb);
+        }
 
         if (clp->cl_flags & NFSD4_CLIENT_CB_FLAG_MASK)
                 nfsd4_process_cb_update(cb);
@@ -1084,6 +1066,15 @@ nfsd4_run_cb_work(struct work_struct *work)
                         cb->cb_ops->release(cb);
                 return;
         }
+
+        /*
+         * Don't send probe messages for 4.1 or later.
+         */
+        if (!cb->cb_ops && clp->cl_minorversion) {
+                clp->cl_cb_state = NFSD4_CB_UP;
+                return;
+        }
+
         cb->cb_msg.rpc_cred = clp->cl_cb_cred;
         rpc_call_async(clnt, &cb->cb_msg, RPC_TASK_SOFT | RPC_TASK_SOFTCONN,
                         cb->cb_ops ? &nfsd4_cb_ops : &nfsd4_cb_probe_ops, cb);
@@ -1098,8 +1089,8 @@ void nfsd4_init_cb(struct nfsd4_callback *cb, struct nfs4_client *clp,
         cb->cb_msg.rpc_resp = cb;
         cb->cb_ops = ops;
         INIT_WORK(&cb->cb_work, nfsd4_run_cb_work);
-        INIT_LIST_HEAD(&cb->cb_per_client);
-        cb->cb_done = true;
+        cb->cb_status = 0;
+        cb->cb_need_restart = false;
 }
 
 void nfsd4_run_cb(struct nfsd4_callback *cb)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 38f2d7abe3a7..039f9c8a95e8 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -94,6 +94,7 @@ static struct kmem_cache *lockowner_slab;
 static struct kmem_cache *file_slab;
 static struct kmem_cache *stateid_slab;
 static struct kmem_cache *deleg_slab;
+static struct kmem_cache *odstate_slab;
 
 static void free_session(struct nfsd4_session *);
 
@@ -281,6 +282,7 @@ put_nfs4_file(struct nfs4_file *fi)
         if (atomic_dec_and_lock(&fi->fi_ref, &state_lock)) {
                 hlist_del_rcu(&fi->fi_hash);
                 spin_unlock(&state_lock);
+                WARN_ON_ONCE(!list_empty(&fi->fi_clnt_odstate));
                 WARN_ON_ONCE(!list_empty(&fi->fi_delegations));
                 call_rcu(&fi->fi_rcu, nfsd4_free_file_rcu);
         }
@@ -471,6 +473,86 @@ static void nfs4_file_put_access(struct nfs4_file *fp, u32 access)
                 __nfs4_file_put_access(fp, O_RDONLY);
 }
 
+/*
+ * Allocate a new open/delegation state counter. This is needed for
+ * pNFS for proper return on close semantics.
+ *
+ * Note that we only allocate it for pNFS-enabled exports, otherwise
+ * all pointers to struct nfs4_clnt_odstate are always NULL.
+ */
+static struct nfs4_clnt_odstate *
+alloc_clnt_odstate(struct nfs4_client *clp)
+{
+        struct nfs4_clnt_odstate *co;
+
+        co = kmem_cache_zalloc(odstate_slab, GFP_KERNEL);
+        if (co) {
+                co->co_client = clp;
+                atomic_set(&co->co_odcount, 1);
+        }
+        return co;
+}
+
+static void
+hash_clnt_odstate_locked(struct nfs4_clnt_odstate *co)
+{
+        struct nfs4_file *fp = co->co_file;
+
+        lockdep_assert_held(&fp->fi_lock);
+        list_add(&co->co_perfile, &fp->fi_clnt_odstate);
+}
+
+static inline void
+get_clnt_odstate(struct nfs4_clnt_odstate *co)
+{
+        if (co)
+                atomic_inc(&co->co_odcount);
+}
+
+static void
+put_clnt_odstate(struct nfs4_clnt_odstate *co)
+{
+        struct nfs4_file *fp;
+
+        if (!co)
+                return;
+
+        fp = co->co_file;
+        if (atomic_dec_and_lock(&co->co_odcount, &fp->fi_lock)) {
+                list_del(&co->co_perfile);
+                spin_unlock(&fp->fi_lock);
+
+                nfsd4_return_all_file_layouts(co->co_client, fp);
+                kmem_cache_free(odstate_slab, co);
+        }
+}
+
+static struct nfs4_clnt_odstate *
+find_or_hash_clnt_odstate(struct nfs4_file *fp, struct nfs4_clnt_odstate *new)
+{
+        struct nfs4_clnt_odstate *co;
+        struct nfs4_client *cl;
+
+        if (!new)
+                return NULL;
+
+        cl = new->co_client;
+
+        spin_lock(&fp->fi_lock);
+        list_for_each_entry(co, &fp->fi_clnt_odstate, co_perfile) {
+                if (co->co_client == cl) {
+                        get_clnt_odstate(co);
+                        goto out;
+                }
+        }
+        co = new;
+        co->co_file = fp;
+        hash_clnt_odstate_locked(new);
+out:
+        spin_unlock(&fp->fi_lock);
+        return co;
+}
+
 struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl,
                                          struct kmem_cache *slab)
 {
@@ -606,7 +688,8 @@ static void block_delegations(struct knfsd_fh *fh)
 }
 
 static struct nfs4_delegation *
-alloc_init_deleg(struct nfs4_client *clp, struct svc_fh *current_fh)
+alloc_init_deleg(struct nfs4_client *clp, struct svc_fh *current_fh,
+                 struct nfs4_clnt_odstate *odstate)
 {
         struct nfs4_delegation *dp;
         long n;
@@ -631,6 +714,8 @@ alloc_init_deleg(struct nfs4_client *clp, struct svc_fh *current_fh)
         INIT_LIST_HEAD(&dp->dl_perfile);
         INIT_LIST_HEAD(&dp->dl_perclnt);
         INIT_LIST_HEAD(&dp->dl_recall_lru);
+        dp->dl_clnt_odstate = odstate;
+        get_clnt_odstate(odstate);
         dp->dl_type = NFS4_OPEN_DELEGATE_READ;
         dp->dl_retries = 1;
         nfsd4_init_cb(&dp->dl_recall, dp->dl_stid.sc_client,
@@ -714,6 +799,7 @@ static void destroy_delegation(struct nfs4_delegation *dp)
         spin_lock(&state_lock);
         unhash_delegation_locked(dp);
         spin_unlock(&state_lock);
+        put_clnt_odstate(dp->dl_clnt_odstate);
         nfs4_put_deleg_lease(dp->dl_stid.sc_file);
         nfs4_put_stid(&dp->dl_stid);
 }
@@ -724,6 +810,7 @@ static void revoke_delegation(struct nfs4_delegation *dp)
 
         WARN_ON(!list_empty(&dp->dl_recall_lru));
 
+        put_clnt_odstate(dp->dl_clnt_odstate);
         nfs4_put_deleg_lease(dp->dl_stid.sc_file);
 
         if (clp->cl_minorversion == 0)
@@ -933,6 +1020,7 @@ static void nfs4_free_ol_stateid(struct nfs4_stid *stid)
 {
         struct nfs4_ol_stateid *stp = openlockstateid(stid);
 
+        put_clnt_odstate(stp->st_clnt_odstate);
         release_all_access(stp);
         if (stp->st_stateowner)
                 nfs4_put_stateowner(stp->st_stateowner);
@@ -1538,7 +1626,6 @@ static struct nfs4_client *alloc_client(struct xdr_netobj name)
         INIT_LIST_HEAD(&clp->cl_openowners);
         INIT_LIST_HEAD(&clp->cl_delegations);
         INIT_LIST_HEAD(&clp->cl_lru);
-        INIT_LIST_HEAD(&clp->cl_callbacks);
         INIT_LIST_HEAD(&clp->cl_revoked);
 #ifdef CONFIG_NFSD_PNFS
         INIT_LIST_HEAD(&clp->cl_lo_states);
@@ -1634,6 +1721,7 @@ __destroy_client(struct nfs4_client *clp)
         while (!list_empty(&reaplist)) {
                 dp = list_entry(reaplist.next, struct nfs4_delegation, dl_recall_lru);
                 list_del_init(&dp->dl_recall_lru);
+                put_clnt_odstate(dp->dl_clnt_odstate);
                 nfs4_put_deleg_lease(dp->dl_stid.sc_file);
                 nfs4_put_stid(&dp->dl_stid);
         }
@@ -3057,6 +3145,7 @@ static void nfsd4_init_file(struct knfsd_fh *fh, unsigned int hashval,
         spin_lock_init(&fp->fi_lock);
         INIT_LIST_HEAD(&fp->fi_stateids);
         INIT_LIST_HEAD(&fp->fi_delegations);
+        INIT_LIST_HEAD(&fp->fi_clnt_odstate);
         fh_copy_shallow(&fp->fi_fhandle, fh);
         fp->fi_deleg_file = NULL;
         fp->fi_had_conflict = false;
@@ -3073,6 +3162,7 @@ static void nfsd4_init_file(struct knfsd_fh *fh, unsigned int hashval,
 void
 nfsd4_free_slabs(void)
 {
+        kmem_cache_destroy(odstate_slab);
         kmem_cache_destroy(openowner_slab);
         kmem_cache_destroy(lockowner_slab);
         kmem_cache_destroy(file_slab);
@@ -3103,8 +3193,14 @@ nfsd4_init_slabs(void)
                         sizeof(struct nfs4_delegation), 0, 0, NULL);
         if (deleg_slab == NULL)
                 goto out_free_stateid_slab;
+        odstate_slab = kmem_cache_create("nfsd4_odstate",
+                        sizeof(struct nfs4_clnt_odstate), 0, 0, NULL);
+        if (odstate_slab == NULL)
+                goto out_free_deleg_slab;
         return 0;
 
+out_free_deleg_slab:
+        kmem_cache_destroy(deleg_slab);
 out_free_stateid_slab:
         kmem_cache_destroy(stateid_slab);
 out_free_file_slab:
@@ -3581,6 +3677,14 @@ alloc_stateid:
         open->op_stp = nfs4_alloc_open_stateid(clp);
         if (!open->op_stp)
                 return nfserr_jukebox;
+
+        if (nfsd4_has_session(cstate) &&
+            (cstate->current_fh.fh_export->ex_flags & NFSEXP_PNFS)) {
+                open->op_odstate = alloc_clnt_odstate(clp);
+                if (!open->op_odstate)
+                        return nfserr_jukebox;
+        }
+
         return nfs_ok;
 }
 
@@ -3869,7 +3973,7 @@ out_fput:
 
 static struct nfs4_delegation *
 nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh,
-                    struct nfs4_file *fp)
+                    struct nfs4_file *fp, struct nfs4_clnt_odstate *odstate)
 {
         int status;
         struct nfs4_delegation *dp;
@@ -3877,7 +3981,7 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh,
         if (fp->fi_had_conflict)
                 return ERR_PTR(-EAGAIN);
 
-        dp = alloc_init_deleg(clp, fh);
+        dp = alloc_init_deleg(clp, fh, odstate);
         if (!dp)
                 return ERR_PTR(-ENOMEM);
 
@@ -3903,6 +4007,7 @@ out_unlock:
         spin_unlock(&state_lock);
 out:
         if (status) {
+                put_clnt_odstate(dp->dl_clnt_odstate);
                 nfs4_put_stid(&dp->dl_stid);
                 return ERR_PTR(status);
         }
@@ -3980,7 +4085,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open,
                 default:
                         goto out_no_deleg;
         }
-        dp = nfs4_set_delegation(clp, fh, stp->st_stid.sc_file);
+        dp = nfs4_set_delegation(clp, fh, stp->st_stid.sc_file, stp->st_clnt_odstate);
         if (IS_ERR(dp))
                 goto out_no_deleg;
 
@@ -4069,6 +4174,11 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
                         release_open_stateid(stp);
                         goto out;
                 }
+
+                stp->st_clnt_odstate = find_or_hash_clnt_odstate(fp,
+                                                        open->op_odstate);
+                if (stp->st_clnt_odstate == open->op_odstate)
+                        open->op_odstate = NULL;
         }
         update_stateid(&stp->st_stid.sc_stateid);
         memcpy(&open->op_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t));
@@ -4129,6 +4239,8 @@ void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
                 kmem_cache_free(file_slab, open->op_file);
         if (open->op_stp)
                 nfs4_put_stid(&open->op_stp->st_stid);
+        if (open->op_odstate)
+                kmem_cache_free(odstate_slab, open->op_odstate);
 }
 
 __be32
@@ -4385,10 +4497,17 @@ static __be32 check_stateid_generation(stateid_t *in, stateid_t *ref, bool has_s
         return nfserr_old_stateid;
 }
 
+static __be32 nfsd4_check_openowner_confirmed(struct nfs4_ol_stateid *ols)
+{
+        if (ols->st_stateowner->so_is_open_owner &&
+            !(openowner(ols->st_stateowner)->oo_flags & NFS4_OO_CONFIRMED))
+                return nfserr_bad_stateid;
+        return nfs_ok;
+}
+
 static __be32 nfsd4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid)
 {
         struct nfs4_stid *s;
-        struct nfs4_ol_stateid *ols;
         __be32 status = nfserr_bad_stateid;
 
         if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
@@ -4418,13 +4537,7 @@ static __be32 nfsd4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid)
                 break;
         case NFS4_OPEN_STID:
         case NFS4_LOCK_STID:
-                ols = openlockstateid(s);
-                if (ols->st_stateowner->so_is_open_owner
-                                && !(openowner(ols->st_stateowner)->oo_flags
-                                                & NFS4_OO_CONFIRMED))
-                        status = nfserr_bad_stateid;
-                else
-                        status = nfs_ok;
+                status = nfsd4_check_openowner_confirmed(openlockstateid(s));
                 break;
         default:
                 printk("unknown stateid type %x\n", s->sc_type);
@@ -4516,8 +4629,8 @@ nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
                 status = nfs4_check_fh(current_fh, stp);
                 if (status)
                         goto out;
-                if (stp->st_stateowner->so_is_open_owner
-                    && !(openowner(stp->st_stateowner)->oo_flags & NFS4_OO_CONFIRMED))
+                status = nfsd4_check_openowner_confirmed(stp);
+                if (status)
                         goto out;
                 status = nfs4_check_openmode(stp, flags);
                 if (status)
@@ -4852,9 +4965,6 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
         update_stateid(&stp->st_stid.sc_stateid);
         memcpy(&close->cl_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t));
 
-        nfsd4_return_all_file_layouts(stp->st_stateowner->so_client,
-                                      stp->st_stid.sc_file);
-
         nfsd4_close_open_stateid(stp);
 
         /* put reference from nfs4_preprocess_seqid_op */
@@ -6488,6 +6598,7 @@ nfs4_state_shutdown_net(struct net *net)
         list_for_each_safe(pos, next, &reaplist) {
                 dp = list_entry (pos, struct nfs4_delegation, dl_recall_lru);
                 list_del_init(&dp->dl_recall_lru);
+                put_clnt_odstate(dp->dl_clnt_odstate);
                 nfs4_put_deleg_lease(dp->dl_stid.sc_file);
                 nfs4_put_stid(&dp->dl_stid);
         }
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 4f3bfeb11766..dbc4f85a5008 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -63,12 +63,12 @@ typedef struct {
 
 struct nfsd4_callback {
         struct nfs4_client *cb_clp;
-        struct list_head cb_per_client;
         u32 cb_minorversion;
         struct rpc_message cb_msg;
         struct nfsd4_callback_ops *cb_ops;
         struct work_struct cb_work;
-        bool cb_done;
+        int cb_status;
+        bool cb_need_restart;
 };
 
 struct nfsd4_callback_ops {
@@ -126,6 +126,7 @@ struct nfs4_delegation {
         struct list_head        dl_perfile;
         struct list_head        dl_perclnt;
         struct list_head        dl_recall_lru;  /* delegation recalled */
+        struct nfs4_clnt_odstate *dl_clnt_odstate;
         u32                     dl_type;
         time_t                  dl_time;
 /* For recall: */
@@ -332,7 +333,6 @@ struct nfs4_client {
         int                     cl_cb_state;
         struct nfsd4_callback   cl_cb_null;
         struct nfsd4_session    *cl_cb_session;
-        struct list_head        cl_callbacks; /* list of in-progress callbacks */
 
         /* for all client information that callback code might need: */
         spinlock_t              cl_lock;
@@ -465,6 +465,17 @@ static inline struct nfs4_lockowner * lockowner(struct nfs4_stateowner *so)
 }
 
 /*
+ * Per-client state indicating no. of opens and outstanding delegations
+ * on a file from a particular client.'od' stands for 'open & delegation'
+ */
+struct nfs4_clnt_odstate {
+        struct nfs4_client      *co_client;
+        struct nfs4_file        *co_file;
+        struct list_head        co_perfile;
+        atomic_t                co_odcount;
+};
+
+/*
  * nfs4_file: a file opened by some number of (open) nfs4_stateowners.
  *
  * These objects are global. nfsd keeps one instance of a nfs4_file per
@@ -485,6 +496,7 @@ struct nfs4_file {
                 struct list_head        fi_delegations;
                 struct rcu_head         fi_rcu;
         };
+        struct list_head        fi_clnt_odstate;
         /* One each for O_RDONLY, O_WRONLY, O_RDWR: */
         struct file *           fi_fds[3];
         /*
@@ -526,6 +538,7 @@ struct nfs4_ol_stateid {
         struct list_head              st_perstateowner;
         struct list_head              st_locks;
         struct nfs4_stateowner      * st_stateowner;
+        struct nfs4_clnt_odstate    * st_clnt_odstate;
         unsigned char                 st_access_bmap;
         unsigned char                 st_deny_bmap;
         struct nfs4_ol_stateid         * st_openstp;
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index f982ae84f0cd..2f8c092be2b3 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -247,6 +247,7 @@ struct nfsd4_open {
         struct nfs4_openowner *op_openowner; /* used during processing */
         struct nfs4_file *op_file;          /* used during processing */
         struct nfs4_ol_stateid *op_stp;     /* used during processing */
+        struct nfs4_clnt_odstate *op_odstate; /* used during processing */
         struct nfs4_acl *op_acl;
         struct xdr_netobj op_label;
 };
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index 059f37137f9a..919fd5bb14a8 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -388,7 +388,7 @@ static int nilfs_btree_root_broken(const struct nilfs_btree_node *node,
         nchildren = nilfs_btree_node_get_nchildren(node);
 
         if (unlikely(level < NILFS_BTREE_LEVEL_NODE_MIN ||
-                     level > NILFS_BTREE_LEVEL_MAX ||
+                     level >= NILFS_BTREE_LEVEL_MAX ||
                      nchildren < 0 ||
                      nchildren > NILFS_BTREE_ROOT_NCHILDREN_MAX)) {
                 pr_crit("NILFS: bad btree root (inode number=%lu): level = %d, flags = 0x%x, nchildren = %d\n",
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index a6944b25fd5b..fdf4b41d0609 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -757,6 +757,19 @@ lookup:
         if (tmpres) {
                 spin_unlock(&dlm->spinlock);
                 spin_lock(&tmpres->spinlock);
+
+                /*
+                 * Right after dlm spinlock was released, dlm_thread could have
+                 * purged the lockres. Check if lockres got unhashed. If so
+                 * start over.
+                 */
+                if (hlist_unhashed(&tmpres->hash_node)) {
+                        spin_unlock(&tmpres->spinlock);
+                        dlm_lockres_put(tmpres);
+                        tmpres = NULL;
+                        goto lookup;
+                }
+
                 /* Wait on the thread that is mastering the resource */
                 if (tmpres->owner == DLM_LOCK_RES_OWNER_UNKNOWN) {
                         __dlm_wait_on_lockres(tmpres);
diff --git a/fs/splice.c b/fs/splice.c
index 476024bb6546..bfe62ae40f40 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1161,7 +1161,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
         long ret, bytes;
         umode_t i_mode;
         size_t len;
-        int i, flags;
+        int i, flags, more;
 
         /*
          * We require the input being a regular file, as we don't want to
@@ -1204,6 +1204,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
          * Don't block on output, we have to drain the direct pipe.
          */
         sd->flags &= ~SPLICE_F_NONBLOCK;
+        more = sd->flags & SPLICE_F_MORE;
 
         while (len) {
                 size_t read_len;
@@ -1217,6 +1218,15 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
                 sd->total_len = read_len;
 
                 /*
+                 * If more data is pending, set SPLICE_F_MORE
+                 * If this is the last data and SPLICE_F_MORE was not set
+                 * initially, clears it.
+                 */
+                if (read_len < len)
+                        sd->flags |= SPLICE_F_MORE;
+                else if (!more)
+                        sd->flags &= ~SPLICE_F_MORE;
+                /*
                  * NOTE: nonblocking mode only applies to the input. We
                  * must not do the output in nonblocking mode as then we
                  * could get stuck data in the internal pipe:
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index f5ca0e989bba..1c3002e1db20 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -124,7 +124,6 @@
 #ifndef ACPI_USE_SYSTEM_INTTYPES
 
 typedef unsigned char u8;
-typedef unsigned char u8;
 typedef unsigned short u16;
 typedef short s16;
 typedef COMPILER_DEPENDENT_UINT64 u64;
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index a1b25e35ea5f..b7299febc4b4 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -220,7 +220,7 @@ enum rq_flag_bits {
 
 /* This mask is used for both bio and request merge checking */
 #define REQ_NOMERGE_FLAGS \
-        (REQ_NOMERGE | REQ_STARTED | REQ_SOFTBARRIER | REQ_FLUSH | REQ_FUA)
+        (REQ_NOMERGE | REQ_STARTED | REQ_SOFTBARRIER | REQ_FLUSH | REQ_FUA | REQ_FLUSH_SEQ)
 
 #define REQ_RAHEAD              (1ULL << __REQ_RAHEAD)
 #define REQ_THROTTLED           (1ULL << __REQ_THROTTLED)
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index cdf13ca7cac3..371e560d13cf 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -9,10 +9,24 @@
                    + __GNUC_MINOR__ * 100 \
                    + __GNUC_PATCHLEVEL__)
 
-
 /* Optimization barrier */
+
 /* The "volatile" is due to gcc bugs */
 #define barrier() __asm__ __volatile__("": : :"memory")
+/*
+ * This version is i.e. to prevent dead stores elimination on @ptr
+ * where gcc and llvm may behave differently when otherwise using
+ * normal barrier(): while gcc behavior gets along with a normal
+ * barrier(), llvm needs an explicit input variable to be assumed
+ * clobbered. The issue is as follows: while the inline asm might
+ * access any memory it wants, the compiler could have fit all of
+ * @ptr into memory registers instead, and since @ptr never escaped
+ * from that, it proofed that the inline asm wasn't touching any of
+ * it. This version works well with both compilers, i.e. we're telling
+ * the compiler that the inline asm absolutely may see the contents
+ * of @ptr. See also: https://llvm.org/bugs/show_bug.cgi?id=15495
+ */
+#define barrier_data(ptr) __asm__ __volatile__("": :"r"(ptr) :"memory")
 
 /*
  * This macro obfuscates arithmetic on a variable address so that gcc
diff --git a/include/linux/compiler-intel.h b/include/linux/compiler-intel.h
index ba147a1727e6..0c9a2f2c2802 100644
--- a/include/linux/compiler-intel.h
+++ b/include/linux/compiler-intel.h
@@ -13,9 +13,12 @@
 /* Intel ECC compiler doesn't support gcc specific asm stmts.
  * It uses intrinsics to do the equivalent things.
  */
+#undef barrier_data
 #undef RELOC_HIDE
 #undef OPTIMIZER_HIDE_VAR
 
+#define barrier_data(ptr) barrier()
+
 #define RELOC_HIDE(ptr, off)                                    \
   ({ unsigned long __ptr;                                       \
      __ptr = (unsigned long) (ptr);                             \
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 0e41ca0e5927..867722591be2 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -169,6 +169,10 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 # define barrier() __memory_barrier()
 #endif
 
+#ifndef barrier_data
+# define barrier_data(ptr) barrier()
+#endif
+
 /* Unreachable code */
 #ifndef unreachable
 # define unreachable() do { } while (1)
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 46e83c2156c6..f9ecf63d47f1 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -46,7 +46,7 @@ const char *ftrace_print_hex_seq(struct trace_seq *p,
                                  const unsigned char *buf, int len);
 
 const char *ftrace_print_array_seq(struct trace_seq *p,
-                                   const void *buf, int buf_len,
+                                   const void *buf, int count,
                                    size_t el_size);
 
 struct trace_iterator;
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 36ec4ae74634..9de976b4f9a7 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -95,8 +95,6 @@
 
 struct device_node;
 
-extern struct irq_chip gic_arch_extn;
-
 void gic_set_irqchip_flags(unsigned long flags);
 void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
                     u32 offset, struct device_node *);
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index e60a745ac198..e804306ef5e8 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -40,6 +40,10 @@
 #error KEXEC_CONTROL_MEMORY_LIMIT not defined
 #endif
 
+#ifndef KEXEC_CONTROL_MEMORY_GFP
+#define KEXEC_CONTROL_MEMORY_GFP GFP_KERNEL
+#endif
+
 #ifndef KEXEC_CONTROL_PAGE_SIZE
 #error KEXEC_CONTROL_PAGE_SIZE not defined
 #endif
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 8dad4a307bb8..28aeae46f355 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -205,6 +205,7 @@ enum {
         ATA_LFLAG_SW_ACTIVITY   = (1 << 7), /* keep activity stats */
         ATA_LFLAG_NO_LPM        = (1 << 8), /* disable LPM on this link */
         ATA_LFLAG_RST_ONCE      = (1 << 9), /* limit recovery to one reset */
+        ATA_LFLAG_CHANGED       = (1 << 10), /* LPM state changed on this link */
 
         /* struct ata_port flags */
         ATA_FLAG_SLAVE_POSS     = (1 << 0), /* host supports slave dev */
@@ -309,6 +310,12 @@ enum {
          */
         ATA_TMOUT_PMP_SRST_WAIT = 5000,
 
+        /* When the LPM policy is set to ATA_LPM_MAX_POWER, there might
+         * be a spurious PHY event, so ignore the first PHY event that
+         * occurs within 10s after the policy change.
+         */
+        ATA_TMOUT_SPURIOUS_PHY  = 10000,
+
         /* ATA bus states */
         BUS_UNKNOWN             = 0,
         BUS_DMA                 = 1,
@@ -788,6 +795,8 @@ struct ata_link {
         struct ata_eh_context   eh_context;
 
         struct ata_device       device[ATA_MAX_DEVICES];
+
+        unsigned long           last_lpm_change; /* when last LPM change happened */
 };
 #define ATA_LINK_CLEAR_BEGIN            offsetof(struct ata_link, active_tag)
 #define ATA_LINK_CLEAR_END              offsetof(struct ata_link, device[0])
@@ -1201,6 +1210,7 @@ extern struct ata_device *ata_dev_pair(struct ata_device *adev);
 extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
 extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap);
 extern void ata_scsi_cmd_error_handler(struct Scsi_Host *host, struct ata_port *ap, struct list_head *eh_q);
+extern bool sata_lpm_ignore_phy_events(struct ata_link *link);
 
 extern int ata_cable_40wire(struct ata_port *ap);
 extern int ata_cable_80wire(struct ata_port *ap);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index bcbde799ec69..1899c74a7127 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -60,6 +60,7 @@ struct phy_device;
 struct wireless_dev;
 /* 802.15.4 specific */
 struct wpan_dev;
+struct mpls_dev;
 
 void netdev_set_default_ethtool_ops(struct net_device *dev,
                                     const struct ethtool_ops *ops);
@@ -976,7 +977,8 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
  * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh,
  *                           u16 flags)
  * int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq,
- *                           struct net_device *dev, u32 filter_mask)
+ *                           struct net_device *dev, u32 filter_mask,
+ *                           int nlflags)
  * int (*ndo_bridge_dellink)(struct net_device *dev, struct nlmsghdr *nlh,
  *                           u16 flags);
  *
@@ -1172,7 +1174,8 @@ struct net_device_ops {
         int                     (*ndo_bridge_getlink)(struct sk_buff *skb,
                                                       u32 pid, u32 seq,
                                                       struct net_device *dev,
-                                                      u32 filter_mask);
+                                                      u32 filter_mask,
+                                                      int nlflags);
         int                     (*ndo_bridge_dellink)(struct net_device *dev,
                                                       struct nlmsghdr *nlh,
                                                       u16 flags);
@@ -1627,6 +1630,9 @@ struct net_device {
         void                    *ax25_ptr;
         struct wireless_dev     *ieee80211_ptr;
         struct wpan_dev         *ieee802154_ptr;
+#if IS_ENABLED(CONFIG_MPLS_ROUTING)
+        struct mpls_dev __rcu   *mpls_ptr;
+#endif
 
 /*
  * Cache lines mostly used on receive path (including eth_type_trans())
@@ -2021,10 +2027,10 @@ struct pcpu_sw_netstats {
 ({                                                              \
         typeof(type) __percpu *pcpu_stats = alloc_percpu(type); \
         if (pcpu_stats) {                                       \
-                int i;                                          \
-                for_each_possible_cpu(i) {                      \
+                int __cpu;                                      \
+                for_each_possible_cpu(__cpu) {                  \
                         typeof(type) *stat;                     \
-                        stat = per_cpu_ptr(pcpu_stats, i);      \
+                        stat = per_cpu_ptr(pcpu_stats, __cpu);  \
                         u64_stats_init(&stat->syncp);           \
                 }                                               \
         }                                                       \
diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index ab8f76dba668..f2fdb5a52070 100644
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -39,12 +39,24 @@ static inline void br_drop_fake_rtable(struct sk_buff *skb)
 
 static inline int nf_bridge_get_physinif(const struct sk_buff *skb)
 {
-        return skb->nf_bridge ? skb->nf_bridge->physindev->ifindex : 0;
+        struct nf_bridge_info *nf_bridge;
+
+        if (skb->nf_bridge == NULL)
+                return 0;
+
+        nf_bridge = skb->nf_bridge;
+        return nf_bridge->physindev ? nf_bridge->physindev->ifindex : 0;
 }
 
 static inline int nf_bridge_get_physoutif(const struct sk_buff *skb)
 {
-        return skb->nf_bridge ? skb->nf_bridge->physoutdev->ifindex : 0;
+        struct nf_bridge_info *nf_bridge;
+
+        if (skb->nf_bridge == NULL)
+                return 0;
+
+        nf_bridge = skb->nf_bridge;
+        return nf_bridge->physoutdev ? nf_bridge->physoutdev->ifindex : 0;
 }
 
 static inline struct net_device *
diff --git a/include/linux/nilfs2_fs.h b/include/linux/nilfs2_fs.h
index ff3fea3194c6..9abb763e4b86 100644
--- a/include/linux/nilfs2_fs.h
+++ b/include/linux/nilfs2_fs.h
@@ -460,7 +460,7 @@ struct nilfs_btree_node {
 /* level */
 #define NILFS_BTREE_LEVEL_DATA          0
 #define NILFS_BTREE_LEVEL_NODE_MIN      (NILFS_BTREE_LEVEL_DATA + 1)
-#define NILFS_BTREE_LEVEL_MAX           14
+#define NILFS_BTREE_LEVEL_MAX           14      /* Max level (exclusive) */
 
 /**
  * struct nilfs_palloc_group_desc - block group descriptor
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 38cff8f6716d..2f7b9a40f627 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2541,10 +2541,6 @@
 
 #define PCI_VENDOR_ID_INTEL             0x8086
 #define PCI_DEVICE_ID_INTEL_EESSC       0x0008
-#define PCI_DEVICE_ID_INTEL_SNB_IMC     0x0100
-#define PCI_DEVICE_ID_INTEL_IVB_IMC     0x0154
-#define PCI_DEVICE_ID_INTEL_IVB_E3_IMC  0x0150
-#define PCI_DEVICE_ID_INTEL_HSW_IMC     0x0c00
 #define PCI_DEVICE_ID_INTEL_PXHD_0      0x0320
 #define PCI_DEVICE_ID_INTEL_PXHD_1      0x0321
 #define PCI_DEVICE_ID_INTEL_PXH_0       0x0329
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index e23d242d1230..dbcbcc59aa92 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -282,7 +282,8 @@ static inline bool rht_shrink_below_30(const struct rhashtable *ht,
 static inline bool rht_grow_above_100(const struct rhashtable *ht,
                                       const struct bucket_table *tbl)
 {
-        return atomic_read(&ht->nelems) > tbl->size;
+        return atomic_read(&ht->nelems) > tbl->size &&
+                (!ht->p.max_size || tbl->size < ht->p.max_size);
 }
 
 /* The bucket lock is selected based on the hash and protects mutations
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 2da5d1081ad9..7b8e260c4a27 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -122,5 +122,5 @@ extern int ndo_dflt_fdb_del(struct ndmsg *ndm,
 
 extern int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
                                    struct net_device *dev, u16 mode,
-                                   u32 flags, u32 mask);
+                                   u32 flags, u32 mask, int nlflags);
 #endif  /* __LINUX_RTNETLINK_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8222ae40ecb0..26a2e6122734 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -175,14 +175,6 @@ extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
 extern void calc_global_load(unsigned long ticks);
 extern void update_cpu_load_nohz(void);
 
-/* Notifier for when a task gets migrated to a new CPU */
-struct task_migration_notifier {
-        struct task_struct *task;
-        int from_cpu;
-        int to_cpu;
-};
-extern void register_task_migration_notifier(struct notifier_block *n);
-
 extern unsigned long get_parent_ip(unsigned long addr);
 
 extern void dump_cpu_task(int cpu);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 06793b598f44..66e374d62f64 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -773,6 +773,7 @@ bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,
 
 struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags,
                             int node);
+struct sk_buff *__build_skb(void *data, unsigned int frag_size);
 struct sk_buff *build_skb(void *data, unsigned int frag_size);
 static inline struct sk_buff *alloc_skb(unsigned int size,
                                         gfp_t priority)
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 358a337af598..fe5623c9af71 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -491,6 +491,7 @@ static inline speed_t tty_get_baud_rate(struct tty_struct *tty)
 
 extern void tty_termios_copy_hw(struct ktermios *new, struct ktermios *old);
 extern int tty_termios_hw_change(struct ktermios *a, struct ktermios *b);
+extern int tty_set_termios(struct tty_struct *tty, struct ktermios *kt);
 
 extern struct tty_ldisc *tty_ldisc_ref(struct tty_struct *);
 extern void tty_ldisc_deref(struct tty_ldisc *);
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index a7f2604c5f25..7f5f78bd15ad 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -77,6 +77,8 @@
                 /* Cannot handle ATA_12 or ATA_16 CDBs */       \
         US_FLAG(NO_REPORT_OPCODES,      0x04000000)             \
                 /* Cannot handle MI_REPORT_SUPPORTED_OPERATION_CODES */ \
+        US_FLAG(MAX_SECTORS_240,        0x08000000)             \
+                /* Sets max_sectors to 240 */                   \
 
 #define US_FLAG(name, value)    US_FL_##name = value ,
 enum { US_DO_ALL_FLAGS };
diff --git a/include/linux/util_macros.h b/include/linux/util_macros.h
index d5f4fb69dba3..f9b2ce58039b 100644
--- a/include/linux/util_macros.h
+++ b/include/linux/util_macros.h
@@ -5,7 +5,7 @@
 ({                                                                      \
         typeof(as) __fc_i, __fc_as = (as) - 1;                          \
         typeof(x) __fc_x = (x);                                         \
-        typeof(*a) *__fc_a = (a);                                       \
+        typeof(*a) const *__fc_a = (a);                                 \
         for (__fc_i = 0; __fc_i < __fc_as; __fc_i++) {                  \
                 if (__fc_x op DIV_ROUND_CLOSEST(__fc_a[__fc_i] +        \
                                                 __fc_a[__fc_i + 1], 2)) \
diff --git a/include/net/bonding.h b/include/net/bonding.h
index fda6feeb6c1f..78ed135e9dea 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -30,13 +30,6 @@
 #include <net/bond_alb.h>
 #include <net/bond_options.h>
 
-#define DRV_VERSION     "3.7.1"
-#define DRV_RELDATE     "April 27, 2011"
-#define DRV_NAME        "bonding"
-#define DRV_DESCRIPTION "Ethernet Channel Bonding Driver"
-
-#define bond_version DRV_DESCRIPTION ": v" DRV_VERSION " (" DRV_RELDATE ")\n"
-
 #define BOND_MAX_ARP_TARGETS    16
 
 #define BOND_DEFAULT_MIIMON     100
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 7b5887cd1172..48a815823587 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -279,12 +279,6 @@ static inline void inet_csk_reqsk_queue_add(struct sock *sk,
 void inet_csk_reqsk_queue_hash_add(struct sock *sk, struct request_sock *req,
                                    unsigned long timeout);
 
-static inline void inet_csk_reqsk_queue_removed(struct sock *sk,
-                                                struct request_sock *req)
-{
-        reqsk_queue_removed(&inet_csk(sk)->icsk_accept_queue, req);
-}
-
 static inline void inet_csk_reqsk_queue_added(struct sock *sk,
                                               const unsigned long timeout)
 {
@@ -306,19 +300,7 @@ static inline int inet_csk_reqsk_queue_is_full(const struct sock *sk)
         return reqsk_queue_is_full(&inet_csk(sk)->icsk_accept_queue);
 }
 
-static inline void inet_csk_reqsk_queue_unlink(struct sock *sk,
-                                               struct request_sock *req)
-{
-        reqsk_queue_unlink(&inet_csk(sk)->icsk_accept_queue, req);
-}
-
-static inline void inet_csk_reqsk_queue_drop(struct sock *sk,
-                                             struct request_sock *req)
-{
-        inet_csk_reqsk_queue_unlink(sk, req);
-        inet_csk_reqsk_queue_removed(sk, req);
-        reqsk_put(req);
-}
+void inet_csk_reqsk_queue_drop(struct sock *sk, struct request_sock *req);
 
 void inet_csk_destroy_sock(struct sock *sk);
 void inet_csk_prepare_forced_close(struct sock *sk);
diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index fe41f3ceb008..9f4265ce8892 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -212,24 +212,6 @@ static inline int reqsk_queue_empty(struct request_sock_queue *queue)
         return queue->rskq_accept_head == NULL;
 }
 
-static inline void reqsk_queue_unlink(struct request_sock_queue *queue,
-                                      struct request_sock *req)
-{
-        struct listen_sock *lopt = queue->listen_opt;
-        struct request_sock **prev;
-
-        spin_lock(&queue->syn_wait_lock);
-
-        prev = &lopt->syn_table[req->rsk_hash];
-        while (*prev != req)
-                prev = &(*prev)->dl_next;
-        *prev = req->dl_next;
-
-        spin_unlock(&queue->syn_wait_lock);
-        if (del_timer(&req->rsk_timer))
-                reqsk_put(req);
-}
-
 static inline void reqsk_queue_add(struct request_sock_queue *queue,
                                    struct request_sock *req,
                                    struct sock *parent,
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h
index ce55906b54a0..ac54c27a2bfd 100644
--- a/include/rdma/ib_addr.h
+++ b/include/rdma/ib_addr.h
@@ -160,7 +160,7 @@ static inline int rdma_ip2gid(struct sockaddr *addr, union ib_gid *gid)
 }
 
 /* Important - sockaddr should be a union of sockaddr_in and sockaddr_in6 */
-static inline int rdma_gid2ip(struct sockaddr *out, union ib_gid *gid)
+static inline void rdma_gid2ip(struct sockaddr *out, union ib_gid *gid)
 {
         if (ipv6_addr_v4mapped((struct in6_addr *)gid)) {
                 struct sockaddr_in *out_in = (struct sockaddr_in *)out;
@@ -173,7 +173,6 @@ static inline int rdma_gid2ip(struct sockaddr *out, union ib_gid *gid)
                 out_in->sin6_family = AF_INET6;
                 memcpy(&out_in->sin6_addr.s6_addr, gid->raw, 16);
         }
-        return 0;
 }
 
 static inline void iboe_addr_get_sgid(struct rdma_dev_addr *dev_addr,
diff --git a/include/rdma/ib_cm.h b/include/rdma/ib_cm.h
index 0e3ff30647d5..39ed2d2fbd51 100644
--- a/include/rdma/ib_cm.h
+++ b/include/rdma/ib_cm.h
@@ -105,7 +105,8 @@ enum ib_cm_data_size {
         IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE = 216,
         IB_CM_SIDR_REP_PRIVATE_DATA_SIZE = 136,
         IB_CM_SIDR_REP_INFO_LENGTH       = 72,
-        IB_CM_COMPARE_SIZE               = 64
+        /* compare done u32 at a time */
+        IB_CM_COMPARE_SIZE               = (64 / sizeof(u32))
 };
 
 struct ib_cm_id;
@@ -337,8 +338,8 @@ void ib_destroy_cm_id(struct ib_cm_id *cm_id);
 #define IB_SDP_SERVICE_ID_MASK  cpu_to_be64(0xFFFFFFFFFFFF0000ULL)
 
 struct ib_cm_compare_data {
-        u8  data[IB_CM_COMPARE_SIZE];
-        u8  mask[IB_CM_COMPARE_SIZE];
+        u32  data[IB_CM_COMPARE_SIZE];
+        u32  mask[IB_CM_COMPARE_SIZE];
 };
 
 /**
diff --git a/include/rdma/iw_portmap.h b/include/rdma/iw_portmap.h
index 928b2775e992..fda31673a562 100644
--- a/include/rdma/iw_portmap.h
+++ b/include/rdma/iw_portmap.h
@@ -148,6 +148,16 @@ int iwpm_add_mapping_cb(struct sk_buff *, struct netlink_callback *);
 int iwpm_add_and_query_mapping_cb(struct sk_buff *, struct netlink_callback *);
 
 /**
+ * iwpm_remote_info_cb - Process remote connecting peer address info, which
+ *                       the port mapper has received from the connecting peer
+ *
+ * @cb: Contains the received message (payload and netlink header)
+ *
+ * Stores the IPv4/IPv6 address info in a hash table
+ */
+int iwpm_remote_info_cb(struct sk_buff *, struct netlink_callback *);
+
+/**
  * iwpm_mapping_error_cb - Process port mapper notification for error
  *
  * @skb:
@@ -175,6 +185,21 @@ int iwpm_mapping_info_cb(struct sk_buff *, struct netlink_callback *);
 int iwpm_ack_mapping_info_cb(struct sk_buff *, struct netlink_callback *);
 
 /**
+ * iwpm_get_remote_info - Get the remote connecting peer address info
+ *
+ * @mapped_loc_addr: Mapped local address of the listening peer
+ * @mapped_rem_addr: Mapped remote address of the connecting peer
+ * @remote_addr: To store the remote address of the connecting peer
+ * @nl_client: The index of the netlink client
+ *
+ * The remote address info is retrieved and provided to the client in
+ * the remote_addr. After that it is removed from the hash table
+ */
+int iwpm_get_remote_info(struct sockaddr_storage *mapped_loc_addr,
+                        struct sockaddr_storage *mapped_rem_addr,
+                        struct sockaddr_storage *remote_addr, u8 nl_client);
+
+/**
  * iwpm_create_mapinfo - Store local and mapped IPv4/IPv6 address
  *                       info in a hash table
  * @local_addr: Local ip/tcp address
diff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h
index 183eaab7c380..96e3f56519e7 100644
--- a/include/scsi/scsi_devinfo.h
+++ b/include/scsi/scsi_devinfo.h
@@ -36,5 +36,6 @@
                                              for sequential scan */
 #define BLIST_TRY_VPD_PAGES     0x10000000 /* Attempt to read VPD pages */
 #define BLIST_NO_RSOC           0x20000000 /* don't try to issue RSOC */
+#define BLIST_MAX_1024          0x40000000 /* maximum 1024 sector cdb length */
 
 #endif
diff --git a/include/sound/designware_i2s.h b/include/sound/designware_i2s.h
index 26f406e0f673..3a8fca9409a7 100644
--- a/include/sound/designware_i2s.h
+++ b/include/sound/designware_i2s.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (ST) 2012 Rajeev Kumar (rajeev-dlh.kumar@st.com)
+ * Copyright (ST) 2012 Rajeev Kumar (rajeevkumar.linux@gmail.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
diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h
index 0de95ccb92cf..5bd134651f5e 100644
--- a/include/sound/emu10k1.h
+++ b/include/sound/emu10k1.h
@@ -41,7 +41,8 @@
 
 #define EMUPAGESIZE     4096
 #define MAXREQVOICES    8
-#define MAXPAGES        8192
+#define MAXPAGES0       4096    /* 32 bit mode */
+#define MAXPAGES1       8192    /* 31 bit mode */
 #define RESERVED        0
 #define NUM_MIDI        16
 #define NUM_G           64              /* use all channels */
@@ -50,8 +51,7 @@
 
 /* FIXME? - according to the OSS driver the EMU10K1 needs a 29 bit DMA mask */
 #define EMU10K1_DMA_MASK        0x7fffffffUL    /* 31bit */
-#define AUDIGY_DMA_MASK         0x7fffffffUL    /* 31bit FIXME - 32 should work? */
-                                                /* See ALSA bug #1276 - rlrevell */
+#define AUDIGY_DMA_MASK         0xffffffffUL    /* 32bit mode */
 
 #define TMEMSIZE        256*1024
 #define TMEMSIZEREG     4
@@ -466,8 +466,11 @@
 
 #define MAPB                    0x0d            /* Cache map B                                          */
 
-#define MAP_PTE_MASK            0xffffe000      /* The 19 MSBs of the PTE indexed by the PTI            */
-#define MAP_PTI_MASK            0x00001fff      /* The 13 bit index to one of the 8192 PTE dwords       */
+#define MAP_PTE_MASK0           0xfffff000      /* The 20 MSBs of the PTE indexed by the PTI            */
+#define MAP_PTI_MASK0           0x00000fff      /* The 12 bit index to one of the 4096 PTE dwords       */
+
+#define MAP_PTE_MASK1           0xffffe000      /* The 19 MSBs of the PTE indexed by the PTI            */
+#define MAP_PTI_MASK1           0x00001fff      /* The 13 bit index to one of the 8192 PTE dwords       */
 
 /* 0x0e, 0x0f: Not used */
 
@@ -1704,6 +1707,7 @@ struct snd_emu10k1 {
         unsigned short model;                   /* subsystem id */
         unsigned int card_type;                 /* EMU10K1_CARD_* */
         unsigned int ecard_ctrl;                /* ecard control bits */
+        unsigned int address_mode;              /* address mode */
         unsigned long dma_mask;                 /* PCI DMA mask */
         unsigned int delay_pcm_irq;             /* in samples */
         int max_cache_pages;                    /* max memory size / PAGE_SIZE */
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 0bc83647d3fa..1065095c6973 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -287,7 +287,7 @@ struct device;
         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,\
         .tlv.p = (tlv_array), \
         .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
-        .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
+        .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 1) }
 #define SOC_DAPM_SINGLE_TLV_VIRT(xname, max, tlv_array) \
         SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0, tlv_array)
 #define SOC_DAPM_ENUM(xname, xenum) \
diff --git a/include/sound/soc.h b/include/sound/soc.h
index fcb312b3f258..f6226914acfe 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -387,8 +387,20 @@ int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 int snd_soc_register_card(struct snd_soc_card *card);
 int snd_soc_unregister_card(struct snd_soc_card *card);
 int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card);
+#ifdef CONFIG_PM_SLEEP
 int snd_soc_suspend(struct device *dev);
 int snd_soc_resume(struct device *dev);
+#else
+static inline int snd_soc_suspend(struct device *dev)
+{
+        return 0;
+}
+
+static inline int snd_soc_resume(struct device *dev)
+{
+        return 0;
+}
+#endif
 int snd_soc_poweroff(struct device *dev);
 int snd_soc_register_platform(struct device *dev,
                 const struct snd_soc_platform_driver *platform_drv);
diff --git a/include/sound/spear_dma.h b/include/sound/spear_dma.h
index 65aca51fe255..e290de4e7e82 100644
--- a/include/sound/spear_dma.h
+++ b/include/sound/spear_dma.h
@@ -1,7 +1,7 @@
 /*
 * linux/spear_dma.h
 *
-* Copyright (ST) 2012 Rajeev Kumar (rajeev-dlh.kumar@st.com)
+* Copyright (ST) 2012 Rajeev Kumar (rajeevkumar.linux@gmail.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
diff --git a/include/uapi/linux/virtio_ring.h b/include/uapi/linux/virtio_ring.h
index a3318f31e8e7..915980ac68df 100644
--- a/include/uapi/linux/virtio_ring.h
+++ b/include/uapi/linux/virtio_ring.h
@@ -155,7 +155,7 @@ static inline unsigned vring_size(unsigned int num, unsigned long align)
 }
 
 /* The following is used with USED_EVENT_IDX and AVAIL_EVENT_IDX */
-/* Assuming a given event_idx value from the other size, if
+/* Assuming a given event_idx value from the other side, if
  * we have just incremented index from old to new_idx,
  * should we trigger an event? */
 static inline int vring_need_event(__u16 event_idx, __u16 new_idx, __u16 old)
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index de69170a30ce..6e4bb4270ca2 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -37,6 +37,7 @@ enum {
         RDMA_NL_IWPM_ADD_MAPPING,
         RDMA_NL_IWPM_QUERY_MAPPING,
         RDMA_NL_IWPM_REMOVE_MAPPING,
+        RDMA_NL_IWPM_REMOTE_INFO,
         RDMA_NL_IWPM_HANDLE_ERR,
         RDMA_NL_IWPM_MAPINFO,
         RDMA_NL_IWPM_MAPINFO_NUM,
diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index 143ca5ffab7a..4478f4b4aae2 100644
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -191,6 +191,7 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
                       struct gnttab_unmap_grant_ref *kunmap_ops,
                       struct page **pages, unsigned int count);
 void gnttab_unmap_refs_async(struct gntab_unmap_queue_data* item);
+int gnttab_unmap_refs_sync(struct gntab_unmap_queue_data *item);
 
 
 /* Perform a batch of grant map/copy operations. Retry every batch slot
diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
index c643e6a94c9a..0ce4f32017ea 100644
--- a/include/xen/xen-ops.h
+++ b/include/xen/xen-ops.h
@@ -13,6 +13,7 @@ void xen_arch_post_suspend(int suspend_cancelled);
 
 void xen_timer_resume(void);
 void xen_arch_resume(void);
+void xen_arch_suspend(void);
 
 void xen_resume_notifier_register(struct notifier_block *nb);
 void xen_resume_notifier_unregister(struct notifier_block *nb);
diff --git a/init/do_mounts.c b/init/do_mounts.c
index 8369ffa5f33d..a95bbdb2a502 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -225,10 +225,11 @@ dev_t name_to_dev_t(const char *name)
 #endif
 
         if (strncmp(name, "/dev/", 5) != 0) {
-                unsigned maj, min;
+                unsigned maj, min, offset;
                 char dummy;
 
-                if (sscanf(name, "%u:%u%c", &maj, &min, &dummy) == 2) {
+                if ((sscanf(name, "%u:%u%c", &maj, &min, &dummy) == 2) ||
+                    (sscanf(name, "%u:%u:%u:%c", &maj, &min, &offset, &dummy) == 3)) {
                         res = MKDEV(maj, min);
                         if (maj != MAJOR(res) || min != MINOR(res))
                                 goto fail;
diff --git a/kernel/Makefile b/kernel/Makefile
index 0f8f8b0bc1bf..60c302cfb4d3 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -197,9 +197,9 @@ x509.genkey:
         @echo >>x509.genkey "x509_extensions = myexts"
         @echo >>x509.genkey
         @echo >>x509.genkey "[ req_distinguished_name ]"
-        @echo >>x509.genkey "O = Magrathea"
-        @echo >>x509.genkey "CN = Glacier signing key"
-        @echo >>x509.genkey "emailAddress = slartibartfast@magrathea.h2g2"
+        @echo >>x509.genkey "#O = Unspecified company"
+        @echo >>x509.genkey "CN = Build time autogenerated kernel key"
+        @echo >>x509.genkey "#emailAddress = unspecified.user@unspecified.company"
         @echo >>x509.genkey
         @echo >>x509.genkey "[ myexts ]"
         @echo >>x509.genkey "basicConstraints=critical,CA:FALSE"
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 4139a0f8b558..54f0e7fcd0e2 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -357,8 +357,8 @@ select_insn:
         ALU64_MOD_X:
                 if (unlikely(SRC == 0))
                         return 0;
-                tmp = DST;
-                DST = do_div(tmp, SRC);
+                div64_u64_rem(DST, SRC, &tmp);
+                DST = tmp;
                 CONT;
         ALU_MOD_X:
                 if (unlikely(SRC == 0))
@@ -367,8 +367,8 @@ select_insn:
                 DST = do_div(tmp, (u32) SRC);
                 CONT;
         ALU64_MOD_K:
-                tmp = DST;
-                DST = do_div(tmp, IMM);
+                div64_u64_rem(DST, IMM, &tmp);
+                DST = tmp;
                 CONT;
         ALU_MOD_K:
                 tmp = (u32) DST;
@@ -377,7 +377,7 @@ select_insn:
         ALU64_DIV_X:
                 if (unlikely(SRC == 0))
                         return 0;
-                do_div(DST, SRC);
+                DST = div64_u64(DST, SRC);
                 CONT;
         ALU_DIV_X:
                 if (unlikely(SRC == 0))
@@ -387,7 +387,7 @@ select_insn:
                 DST = (u32) tmp;
                 CONT;
         ALU64_DIV_K:
-                do_div(DST, IMM);
+                DST = div64_u64(DST, IMM);
                 CONT;
         ALU_DIV_K:
                 tmp = (u32) DST;
diff --git a/kernel/irq/dummychip.c b/kernel/irq/dummychip.c
index 988dc58e8847..2feb6feca0cc 100644
--- a/kernel/irq/dummychip.c
+++ b/kernel/irq/dummychip.c
@@ -57,5 +57,6 @@ struct irq_chip dummy_irq_chip = {
         .irq_ack        = noop,
         .irq_mask       = noop,
         .irq_unmask     = noop,
+        .flags          = IRQCHIP_SKIP_SET_WAKE,
 };
 EXPORT_SYMBOL_GPL(dummy_irq_chip);
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 38c25b1f2fd5..7a36fdcca5bf 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -707,7 +707,7 @@ static struct page *kimage_alloc_normal_control_pages(struct kimage *image,
         do {
                 unsigned long pfn, epfn, addr, eaddr;
 
-                pages = kimage_alloc_pages(GFP_KERNEL, order);
+                pages = kimage_alloc_pages(KEXEC_CONTROL_MEMORY_GFP, order);
                 if (!pages)
                         break;
                 pfn   = page_to_pfn(pages);
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 233165da782f..8cf7304b2867 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -162,11 +162,14 @@ static void invoke_rcu_callbacks(struct rcu_state *rsp, struct rcu_data *rdp);
 static int kthread_prio = CONFIG_RCU_KTHREAD_PRIO;
 module_param(kthread_prio, int, 0644);
 
-/* Delay in jiffies for grace-period initialization delays. */
-static int gp_init_delay = IS_ENABLED(CONFIG_RCU_TORTURE_TEST_SLOW_INIT)
-                                ? CONFIG_RCU_TORTURE_TEST_SLOW_INIT_DELAY
-                                : 0;
+/* Delay in jiffies for grace-period initialization delays, debug only. */
+#ifdef CONFIG_RCU_TORTURE_TEST_SLOW_INIT
+static int gp_init_delay = CONFIG_RCU_TORTURE_TEST_SLOW_INIT_DELAY;
 module_param(gp_init_delay, int, 0644);
+#else /* #ifdef CONFIG_RCU_TORTURE_TEST_SLOW_INIT */
+static const int gp_init_delay;
+#endif /* #else #ifdef CONFIG_RCU_TORTURE_TEST_SLOW_INIT */
+#define PER_RCU_NODE_PERIOD 10  /* Number of grace periods between delays. */
 
 /*
  * Track the rcutorture test sequence number and the update version
@@ -1843,9 +1846,8 @@ static int rcu_gp_init(struct rcu_state *rsp)
                 raw_spin_unlock_irq(&rnp->lock);
                 cond_resched_rcu_qs();
                 ACCESS_ONCE(rsp->gp_activity) = jiffies;
-                if (IS_ENABLED(CONFIG_RCU_TORTURE_TEST_SLOW_INIT) &&
-                    gp_init_delay > 0 &&
-                    !(rsp->gpnum % (rcu_num_nodes * 10)))
+                if (gp_init_delay > 0 &&
+                    !(rsp->gpnum % (rcu_num_nodes * PER_RCU_NODE_PERIOD)))
                         schedule_timeout_uninterruptible(gp_init_delay);
         }
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index f9123a82cbb6..fe22f7510bce 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1016,13 +1016,6 @@ void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags)
                 rq_clock_skip_update(rq, true);
 }
 
-static ATOMIC_NOTIFIER_HEAD(task_migration_notifier);
-
-void register_task_migration_notifier(struct notifier_block *n)
-{
-        atomic_notifier_chain_register(&task_migration_notifier, n);
-}
-
 #ifdef CONFIG_SMP
 void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
 {
@@ -1053,18 +1046,10 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
         trace_sched_migrate_task(p, new_cpu);
 
         if (task_cpu(p) != new_cpu) {
-                struct task_migration_notifier tmn;
-
                 if (p->sched_class->migrate_task_rq)
                         p->sched_class->migrate_task_rq(p, new_cpu);
                 p->se.nr_migrations++;
                 perf_sw_event_sched(PERF_COUNT_SW_CPU_MIGRATIONS, 1, 0);
-
-                tmn.task = p;
-                tmn.from_cpu = task_cpu(p);
-                tmn.to_cpu = new_cpu;
-
-                atomic_notifier_call_chain(&task_migration_notifier, 0, &tmn);
         }
 
         __set_task_cpu(p, new_cpu);
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index deef1caa94c6..fefcb1fa5160 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -81,7 +81,6 @@ static void cpuidle_idle_call(void)
         struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices);
         struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
         int next_state, entered_state;
-        unsigned int broadcast;
         bool reflect;
 
         /*
@@ -150,17 +149,6 @@ static void cpuidle_idle_call(void)
                 goto exit_idle;
         }
 
-        broadcast = drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP;
-
-        /*
-         * Tell the time framework to switch to a broadcast timer
-         * because our local timer will be shutdown. If a local timer
-         * is used from another cpu as a broadcast timer, this call may
-         * fail if it is not available
-         */
-        if (broadcast && tick_broadcast_enter())
-                goto use_default;
-
         /* Take note of the planned idle state. */
         idle_set_state(this_rq(), &drv->states[next_state]);
 
@@ -174,8 +162,8 @@ static void cpuidle_idle_call(void)
         /* The cpu is no longer idle or about to enter idle. */
         idle_set_state(this_rq(), NULL);
 
-        if (broadcast)
-                tick_broadcast_exit();
+        if (entered_state == -EBUSY)
+                goto use_default;
 
         /*
          * Give the governor an opportunity to reflect on the outcome
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 11dc22a6983b..637a09461c1d 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -117,11 +117,7 @@ static int __clockevents_set_state(struct clock_event_device *dev,
         /* Transition with new state-specific callbacks */
         switch (state) {
         case CLOCK_EVT_STATE_DETACHED:
-                /*
-                 * This is an internal state, which is guaranteed to go from
-                 * SHUTDOWN to DETACHED. No driver interaction required.
-                 */
-                return 0;
+                /* The clockevent device is getting replaced. Shut it down. */
 
         case CLOCK_EVT_STATE_SHUTDOWN:
                 return dev->set_state_shutdown(dev);
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 692bf7184c8c..25a086bcb700 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -178,12 +178,13 @@ ftrace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len)
 EXPORT_SYMBOL(ftrace_print_hex_seq);
 
 const char *
-ftrace_print_array_seq(struct trace_seq *p, const void *buf, int buf_len,
+ftrace_print_array_seq(struct trace_seq *p, const void *buf, int count,
                        size_t el_size)
 {
         const char *ret = trace_seq_buffer_ptr(p);
         const char *prefix = "";
         void *ptr = (void *)buf;
+        size_t buf_len = count * el_size;
 
         trace_seq_putc(p, '{');
 
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 17670573dda8..ba2b0c87e65b 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1281,6 +1281,7 @@ config RCU_TORTURE_TEST_SLOW_INIT_DELAY
         int "How much to slow down RCU grace-period initialization"
         range 0 5
         default 3
+        depends on RCU_TORTURE_TEST_SLOW_INIT
         help
           This option specifies the number of jiffies to wait between
           each rcu_node structure initialization.
diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index 4fecaedc80a2..777eda7d1ab4 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -10,8 +10,11 @@ config KASAN
         help
           Enables kernel address sanitizer - runtime memory debugger,
           designed to find out-of-bounds accesses and use-after-free bugs.
-          This is strictly debugging feature. It consumes about 1/8
-          of available memory and brings about ~x3 performance slowdown.
+          This is strictly a debugging feature and it requires a gcc version
+          of 4.9.2 or later. Detection of out of bounds accesses to stack or
+          global variables requires gcc 5.0 or later.
+          This feature consumes about 1/8 of available memory and brings about
+          ~x3 performance slowdown.
           For better error detection enable CONFIG_STACKTRACE,
           and add slub_debug=U to boot cmdline.
 
@@ -40,6 +43,7 @@ config KASAN_INLINE
           memory accesses. This is faster than outline (in some workloads
           it gives about x2 boost over outline instrumentation), but
           make kernel's .text size much bigger.
+          This requires a gcc version of 5.0 or later.
 
 endchoice
 
diff --git a/lib/find_last_bit.c b/lib/find_last_bit.c
deleted file mode 100644
index 3e3be40c6a6e..000000000000
--- a/lib/find_last_bit.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/* find_last_bit.c: fallback find next bit implementation
- *
- * Copyright (C) 2008 IBM Corporation
- * Written by Rusty Russell <rusty@rustcorp.com.au>
- * (Inspired by David Howell's find_next_bit implementation)
- *
- * Rewritten by Yury Norov <yury.norov@gmail.com> to decrease
- * size and improve performance, 2015.
- *
- * 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.
- */
-
-#include <linux/bitops.h>
-#include <linux/bitmap.h>
-#include <linux/export.h>
-#include <linux/kernel.h>
-
-#ifndef find_last_bit
-
-unsigned long find_last_bit(const unsigned long *addr, unsigned long size)
-{
-        if (size) {
-                unsigned long val = BITMAP_LAST_WORD_MASK(size);
-                unsigned long idx = (size-1) / BITS_PER_LONG;
-
-                do {
-                        val &= addr[idx];
-                        if (val)
-                                return idx * BITS_PER_LONG + __fls(val);
-
-                        val = ~0ul;
-                } while (idx--);
-        }
-        return size;
-}
-EXPORT_SYMBOL(find_last_bit);
-
-#endif
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index 4898442b837f..b28df4019ade 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -405,13 +405,18 @@ int rhashtable_insert_rehash(struct rhashtable *ht)
 
         if (rht_grow_above_75(ht, tbl))
                 size *= 2;
-        /* More than two rehashes (not resizes) detected. */
-        else if (WARN_ON(old_tbl != tbl && old_tbl->size == size))
+        /* Do not schedule more than one rehash */
+        else if (old_tbl != tbl)
                 return -EBUSY;
 
         new_tbl = bucket_table_alloc(ht, size, GFP_ATOMIC);
-        if (new_tbl == NULL)
+        if (new_tbl == NULL) {
+                /* Schedule async resize/rehash to try allocation
+                 * non-atomic context.
+                 */
+                schedule_work(&ht->run_work);
                 return -ENOMEM;
+        }
 
         err = rhashtable_rehash_attach(ht, tbl, new_tbl);
         if (err) {
diff --git a/lib/string.c b/lib/string.c
index a5792019193c..bb3d4b6993c4 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -607,7 +607,7 @@ EXPORT_SYMBOL(memset);
 void memzero_explicit(void *s, size_t count)
 {
         memset(s, 0, count);
-        barrier();
+        barrier_data(s);
 }
 EXPORT_SYMBOL(memzero_explicit);
 
diff --git a/mm/hwpoison-inject.c b/mm/hwpoison-inject.c
index 329caf56df22..4ca5fe0042e1 100644
--- a/mm/hwpoison-inject.c
+++ b/mm/hwpoison-inject.c
@@ -34,13 +34,13 @@ static int hwpoison_inject(void *data, u64 val)
         if (!hwpoison_filter_enable)
                 goto inject;
 
-        if (!PageLRU(p) && !PageHuge(p))
-                shake_page(p, 0);
+        if (!PageLRU(hpage) && !PageHuge(p))
+                shake_page(hpage, 0);
         /*
          * This implies unable to support non-LRU pages.
          */
-        if (!PageLRU(p) && !PageHuge(p))
-                return 0;
+        if (!PageLRU(hpage) && !PageHuge(p))
+                goto put_out;
 
         /*
          * do a racy check with elevated page count, to make sure PG_hwpoison
@@ -52,11 +52,14 @@ static int hwpoison_inject(void *data, u64 val)
         err = hwpoison_filter(hpage);
         unlock_page(hpage);
         if (err)
-                return 0;
+                goto put_out;
 
 inject:
         pr_info("Injecting memory failure at pfn %#lx\n", pfn);
         return memory_failure(pfn, 18, MF_COUNT_INCREASED);
+put_out:
+        put_page(hpage);
+        return 0;
 }
 
 static int hwpoison_unpoison(void *data, u64 val)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index d9359b770cd9..501820c815b3 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1187,10 +1187,10 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
          * The check (unnecessarily) ignores LRU pages being isolated and
          * walked by the page reclaim code, however that's not a big loss.
          */
-        if (!PageHuge(p) && !PageTransTail(p)) {
-                if (!PageLRU(p))
-                        shake_page(p, 0);
-                if (!PageLRU(p)) {
+        if (!PageHuge(p)) {
+                if (!PageLRU(hpage))
+                        shake_page(hpage, 0);
+                if (!PageLRU(hpage)) {
                         /*
                          * shake_page could have turned it free.
                          */
@@ -1777,12 +1777,12 @@ int soft_offline_page(struct page *page, int flags)
         } else if (ret == 0) { /* for free pages */
                 if (PageHuge(page)) {
                         set_page_hwpoison_huge_page(hpage);
-                        dequeue_hwpoisoned_huge_page(hpage);
-                        atomic_long_add(1 << compound_order(hpage),
+                        if (!dequeue_hwpoisoned_huge_page(hpage))
+                                atomic_long_add(1 << compound_order(hpage),
                                         &num_poisoned_pages);
                 } else {
-                        SetPageHWPoison(page);
-                        atomic_long_inc(&num_poisoned_pages);
+                        if (!TestSetPageHWPoison(page))
+                                atomic_long_inc(&num_poisoned_pages);
                 }
         }
         unset_migratetype_isolate(page, MIGRATE_MOVABLE);
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 5daf5568b9e1..eb59f7eea508 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -580,7 +580,7 @@ static long long pos_ratio_polynom(unsigned long setpoint,
         long x;
 
         x = div64_s64(((s64)setpoint - (s64)dirty) << RATELIMIT_CALC_SHIFT,
-                    limit - setpoint + 1);
+                      (limit - setpoint) | 1);
         pos_ratio = x;
         pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT;
         pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT;
@@ -807,7 +807,7 @@ static unsigned long bdi_position_ratio(struct backing_dev_info *bdi,
          * scale global setpoint to bdi's:
          *      bdi_setpoint = setpoint * bdi_thresh / thresh
          */
-        x = div_u64((u64)bdi_thresh << 16, thresh + 1);
+        x = div_u64((u64)bdi_thresh << 16, thresh | 1);
         bdi_setpoint = setpoint * (u64)x >> 16;
         /*
          * Use span=(8*write_bw) in single bdi case as indicated by
@@ -822,7 +822,7 @@ static unsigned long bdi_position_ratio(struct backing_dev_info *bdi,
 
         if (bdi_dirty < x_intercept - span / 4) {
                 pos_ratio = div64_u64(pos_ratio * (x_intercept - bdi_dirty),
-                                    x_intercept - bdi_setpoint + 1);
+                                      (x_intercept - bdi_setpoint) | 1);
         } else
                 pos_ratio /= 4;
 
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 409608960899..e29ad70b3000 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -170,7 +170,7 @@ static int nlmsg_populate_mdb_fill(struct sk_buff *skb,
         struct br_port_msg *bpm;
         struct nlattr *nest, *nest2;
 
-        nlh = nlmsg_put(skb, pid, seq, type, sizeof(*bpm), NLM_F_MULTI);
+        nlh = nlmsg_put(skb, pid, seq, type, sizeof(*bpm), 0);
         if (!nlh)
                 return -EMSGSIZE;
 
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 0e4ddb81610d..4b5c236998ff 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -394,7 +394,7 @@ errout:
  * Dump information about all ports, in response to GETLINK
  */
 int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
-               struct net_device *dev, u32 filter_mask)
+               struct net_device *dev, u32 filter_mask, int nlflags)
 {
         struct net_bridge_port *port = br_port_get_rtnl(dev);
 
@@ -402,7 +402,7 @@ int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
             !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
                 return 0;
 
-        return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, NLM_F_MULTI,
+        return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
                               filter_mask, dev);
 }
 
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 6ca0251cb478..3362c29400f1 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -828,7 +828,7 @@ void br_ifinfo_notify(int event, struct net_bridge_port *port);
 int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags);
 int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags);
 int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev,
-               u32 filter_mask);
+               u32 filter_mask, int nlflags);
 
 #ifdef CONFIG_SYSFS
 /* br_sysfs_if.c */
diff --git a/net/core/dev.c b/net/core/dev.c
index 1796cef55ab5..c7ba0388f1be 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3079,7 +3079,7 @@ static struct rps_dev_flow *
 set_rps_cpu(struct net_device *dev, struct sk_buff *skb,
             struct rps_dev_flow *rflow, u16 next_cpu)
 {
-        if (next_cpu != RPS_NO_CPU) {
+        if (next_cpu < nr_cpu_ids) {
 #ifdef CONFIG_RFS_ACCEL
                 struct netdev_rx_queue *rxqueue;
                 struct rps_dev_flow_table *flow_table;
@@ -3184,7 +3184,7 @@ static int get_rps_cpu(struct net_device *dev, struct sk_buff *skb,
                  * If the desired CPU (where last recvmsg was done) is
                  * different from current CPU (one in the rx-queue flow
                  * table entry), switch if one of the following holds:
-                 *   - Current CPU is unset (equal to RPS_NO_CPU).
+                 *   - Current CPU is unset (>= nr_cpu_ids).
                  *   - Current CPU is offline.
                  *   - The current CPU's queue tail has advanced beyond the
                  *     last packet that was enqueued using this table entry.
@@ -3192,14 +3192,14 @@ static int get_rps_cpu(struct net_device *dev, struct sk_buff *skb,
                  *     have been dequeued, thus preserving in order delivery.
                  */
                 if (unlikely(tcpu != next_cpu) &&
-                    (tcpu == RPS_NO_CPU || !cpu_online(tcpu) ||
+                    (tcpu >= nr_cpu_ids || !cpu_online(tcpu) ||
                      ((int)(per_cpu(softnet_data, tcpu).input_queue_head -
                       rflow->last_qtail)) >= 0)) {
                         tcpu = next_cpu;
                         rflow = set_rps_cpu(dev, skb, rflow, next_cpu);
                 }
 
-                if (tcpu != RPS_NO_CPU && cpu_online(tcpu)) {
+                if (tcpu < nr_cpu_ids && cpu_online(tcpu)) {
                         *rflowp = rflow;
                         cpu = tcpu;
                         goto done;
@@ -3240,14 +3240,14 @@ bool rps_may_expire_flow(struct net_device *dev, u16 rxq_index,
         struct rps_dev_flow_table *flow_table;
         struct rps_dev_flow *rflow;
         bool expire = true;
-        int cpu;
+        unsigned int cpu;
 
         rcu_read_lock();
         flow_table = rcu_dereference(rxqueue->rps_flow_table);
         if (flow_table && flow_id <= flow_table->mask) {
                 rflow = &flow_table->flows[flow_id];
                 cpu = ACCESS_ONCE(rflow->cpu);
-                if (rflow->filter == filter_id && cpu != RPS_NO_CPU &&
+                if (rflow->filter == filter_id && cpu < nr_cpu_ids &&
                     ((int)(per_cpu(softnet_data, cpu).input_queue_head -
                            rflow->last_qtail) <
                      (int)(10 * flow_table->mask)))
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 358d52a38533..666e0928ba40 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2854,7 +2854,7 @@ static int brport_nla_put_flag(struct sk_buff *skb, u32 flags, u32 mask,
 
 int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
                             struct net_device *dev, u16 mode,
-                            u32 flags, u32 mask)
+                            u32 flags, u32 mask, int nlflags)
 {
         struct nlmsghdr *nlh;
         struct ifinfomsg *ifm;
@@ -2863,7 +2863,7 @@ int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
         u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
         struct net_device *br_dev = netdev_master_upper_dev_get(dev);
 
-        nlh = nlmsg_put(skb, pid, seq, RTM_NEWLINK, sizeof(*ifm), NLM_F_MULTI);
+        nlh = nlmsg_put(skb, pid, seq, RTM_NEWLINK, sizeof(*ifm), nlflags);
         if (nlh == NULL)
                 return -EMSGSIZE;
 
@@ -2969,7 +2969,8 @@ static int rtnl_bridge_getlink(struct sk_buff *skb, struct netlink_callback *cb)
                 if (br_dev && br_dev->netdev_ops->ndo_bridge_getlink) {
                         if (idx >= cb->args[0] &&
                             br_dev->netdev_ops->ndo_bridge_getlink(
-                                    skb, portid, seq, dev, filter_mask) < 0)
+                                    skb, portid, seq, dev, filter_mask,
+                                    NLM_F_MULTI) < 0)
                                 break;
                         idx++;
                 }
@@ -2977,7 +2978,8 @@ static int rtnl_bridge_getlink(struct sk_buff *skb, struct netlink_callback *cb)
                 if (ops->ndo_bridge_getlink) {
                         if (idx >= cb->args[0] &&
                             ops->ndo_bridge_getlink(skb, portid, seq, dev,
-                                                    filter_mask) < 0)
+                                                    filter_mask,
+                                                    NLM_F_MULTI) < 0)
                                 break;
                         idx++;
                 }
@@ -3018,7 +3020,7 @@ static int rtnl_bridge_notify(struct net_device *dev)
                 goto errout;
         }
 
-        err = dev->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev, 0);
+        err = dev->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev, 0, 0);
         if (err < 0)
                 goto errout;
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index d1967dab9cc6..3cfff2a3d651 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -280,13 +280,14 @@ nodata:
 EXPORT_SYMBOL(__alloc_skb);
 
 /**
- * build_skb - build a network buffer
+ * __build_skb - build a network buffer
  * @data: data buffer provided by caller
- * @frag_size: size of fragment, or 0 if head was kmalloced
+ * @frag_size: size of data, or 0 if head was kmalloced
  *
  * Allocate a new &sk_buff. Caller provides space holding head and
  * skb_shared_info. @data must have been allocated by kmalloc() only if
- * @frag_size is 0, otherwise data should come from the page allocator.
+ * @frag_size is 0, otherwise data should come from the page allocator
+ *  or vmalloc()
  * The return is the new skb buffer.
  * On a failure the return is %NULL, and @data is not freed.
  * Notes :
@@ -297,7 +298,7 @@ EXPORT_SYMBOL(__alloc_skb);
  *  before giving packet to stack.
  *  RX rings only contains data buffers, not full skbs.
  */
-struct sk_buff *build_skb(void *data, unsigned int frag_size)
+struct sk_buff *__build_skb(void *data, unsigned int frag_size)
 {
         struct skb_shared_info *shinfo;
         struct sk_buff *skb;
@@ -311,7 +312,6 @@ struct sk_buff *build_skb(void *data, unsigned int frag_size)
 
         memset(skb, 0, offsetof(struct sk_buff, tail));
         skb->truesize = SKB_TRUESIZE(size);
-        skb->head_frag = frag_size != 0;
         atomic_set(&skb->users, 1);
         skb->head = data;
         skb->data = data;
@@ -328,6 +328,23 @@ struct sk_buff *build_skb(void *data, unsigned int frag_size)
 
         return skb;
 }
+
+/* build_skb() is wrapper over __build_skb(), that specifically
+ * takes care of skb->head and skb->pfmemalloc
+ * This means that if @frag_size is not zero, then @data must be backed
+ * by a page fragment, not kmalloc() or vmalloc()
+ */
+struct sk_buff *build_skb(void *data, unsigned int frag_size)
+{
+        struct sk_buff *skb = __build_skb(data, frag_size);
+
+        if (skb && frag_size) {
+                skb->head_frag = 1;
+                if (virt_to_head_page(data)->pfmemalloc)
+                        skb->pfmemalloc = 1;
+        }
+        return skb;
+}
 EXPORT_SYMBOL(build_skb);
 
 struct netdev_alloc_cache {
@@ -348,7 +365,8 @@ static struct page *__page_frag_refill(struct netdev_alloc_cache *nc,
         gfp_t gfp = gfp_mask;
 
         if (order) {
-                gfp_mask |= __GFP_COMP | __GFP_NOWARN | __GFP_NORETRY;
+                gfp_mask |= __GFP_COMP | __GFP_NOWARN | __GFP_NORETRY |
+                            __GFP_NOMEMALLOC;
                 page = alloc_pages_node(NUMA_NO_NODE, gfp_mask, order);
                 nc->frag.size = PAGE_SIZE << (page ? order : 0);
         }
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 2b4f21d34df6..ccf4c5629b3c 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -453,7 +453,8 @@ static struct sock *dccp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
                                                        iph->saddr, iph->daddr);
         if (req) {
                 nsk = dccp_check_req(sk, skb, req);
-                reqsk_put(req);
+                if (!nsk)
+                        reqsk_put(req);
                 return nsk;
         }
         nsk = inet_lookup_established(sock_net(sk), &dccp_hashinfo,
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 9d0551092c6c..5165571f397a 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -301,7 +301,8 @@ static struct sock *dccp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
                                    &iph->daddr, inet6_iif(skb));
         if (req) {
                 nsk = dccp_check_req(sk, skb, req);
-                reqsk_put(req);
+                if (!nsk)
+                        reqsk_put(req);
                 return nsk;
         }
         nsk = __inet6_lookup_established(sock_net(sk), &dccp_hashinfo,
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 5f566663e47f..30addee2dd03 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -186,8 +186,7 @@ struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb,
         if (child == NULL)
                 goto listen_overflow;
 
-        inet_csk_reqsk_queue_unlink(sk, req);
-        inet_csk_reqsk_queue_removed(sk, req);
+        inet_csk_reqsk_queue_drop(sk, req);
         inet_csk_reqsk_queue_add(sk, req, child);
 out:
         return child;
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 079a224471e7..e6f6cc3a1bcf 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -633,7 +633,7 @@ static int dsa_of_probe(struct device *dev)
                 if (cd->sw_addr > PHY_MAX_ADDR)
                         continue;
 
-                if (!of_property_read_u32(np, "eeprom-length", &eeprom_len))
+                if (!of_property_read_u32(child, "eeprom-length", &eeprom_len))
                         cd->eeprom_len = eeprom_len;
 
                 for_each_available_child_of_node(child, port) {
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 5c3dd6267ed3..8976ca423a07 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -564,6 +564,40 @@ int inet_rtx_syn_ack(struct sock *parent, struct request_sock *req)
 }
 EXPORT_SYMBOL(inet_rtx_syn_ack);
 
+/* return true if req was found in the syn_table[] */
+static bool reqsk_queue_unlink(struct request_sock_queue *queue,
+                               struct request_sock *req)
+{
+        struct listen_sock *lopt = queue->listen_opt;
+        struct request_sock **prev;
+        bool found = false;
+
+        spin_lock(&queue->syn_wait_lock);
+
+        for (prev = &lopt->syn_table[req->rsk_hash]; *prev != NULL;
+             prev = &(*prev)->dl_next) {
+                if (*prev == req) {
+                        *prev = req->dl_next;
+                        found = true;
+                        break;
+                }
+        }
+
+        spin_unlock(&queue->syn_wait_lock);
+        if (del_timer(&req->rsk_timer))
+                reqsk_put(req);
+        return found;
+}
+
+void inet_csk_reqsk_queue_drop(struct sock *sk, struct request_sock *req)
+{
+        if (reqsk_queue_unlink(&inet_csk(sk)->icsk_accept_queue, req)) {
+                reqsk_queue_removed(&inet_csk(sk)->icsk_accept_queue, req);
+                reqsk_put(req);
+        }
+}
+EXPORT_SYMBOL(inet_csk_reqsk_queue_drop);
+
 static void reqsk_timer_handler(unsigned long data)
 {
         struct request_sock *req = (struct request_sock *)data;
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index a93f260cf24c..05ff44b758df 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -158,6 +158,7 @@ void ping_unhash(struct sock *sk)
         if (sk_hashed(sk)) {
                 write_lock_bh(&ping_table.lock);
                 hlist_nulls_del(&sk->sk_nulls_node);
+                sk_nulls_node_init(&sk->sk_nulls_node);
                 sock_put(sk);
                 isk->inet_num = 0;
                 isk->inet_sport = 0;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index a78540f28276..bff62fc87b8e 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -962,10 +962,7 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu)
         if (dst_metric_locked(dst, RTAX_MTU))
                 return;
 
-        if (dst->dev->mtu < mtu)
-                return;
-
-        if (rt->rt_pmtu && rt->rt_pmtu < mtu)
+        if (ipv4_mtu(dst) < mtu)
                 return;
 
         if (mtu < ip_rt_min_pmtu)
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 3571f2be4470..fc1c658ec6c1 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1348,7 +1348,8 @@ static struct sock *tcp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
         req = inet_csk_search_req(sk, th->source, iph->saddr, iph->daddr);
         if (req) {
                 nsk = tcp_check_req(sk, skb, req, false);
-                reqsk_put(req);
+                if (!nsk)
+                        reqsk_put(req);
                 return nsk;
         }
 
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 63d6311b5365..e5d7649136fc 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -755,10 +755,11 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
         if (!child)
                 goto listen_overflow;
 
-        inet_csk_reqsk_queue_unlink(sk, req);
-        inet_csk_reqsk_queue_removed(sk, req);
-
+        inet_csk_reqsk_queue_drop(sk, req);
         inet_csk_reqsk_queue_add(sk, req, child);
+        /* Warning: caller must not call reqsk_put(req);
+         * child stole last reference on it.
+         */
         return child;
 
 listen_overflow:
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 8c8d7e06b72f..a369e8a70b2c 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2812,39 +2812,65 @@ begin_fwd:
         }
 }
 
-/* Send a fin.  The caller locks the socket for us.  This cannot be
- * allowed to fail queueing a FIN frame under any circumstances.
+/* We allow to exceed memory limits for FIN packets to expedite
+ * connection tear down and (memory) recovery.
+ * Otherwise tcp_send_fin() could be tempted to either delay FIN
+ * or even be forced to close flow without any FIN.
+ */
+static void sk_forced_wmem_schedule(struct sock *sk, int size)
+{
+        int amt, status;
+
+        if (size <= sk->sk_forward_alloc)
+                return;
+        amt = sk_mem_pages(size);
+        sk->sk_forward_alloc += amt * SK_MEM_QUANTUM;
+        sk_memory_allocated_add(sk, amt, &status);
+}
+
+/* Send a FIN. The caller locks the socket for us.
+ * We should try to send a FIN packet really hard, but eventually give up.
  */
 void tcp_send_fin(struct sock *sk)
 {
+        struct sk_buff *skb, *tskb = tcp_write_queue_tail(sk);
         struct tcp_sock *tp = tcp_sk(sk);
-        struct sk_buff *skb = tcp_write_queue_tail(sk);
-        int mss_now;
 
-        /* Optimization, tack on the FIN if we have a queue of
-         * unsent frames.  But be careful about outgoing SACKS
-         * and IP options.
+        /* Optimization, tack on the FIN if we have one skb in write queue and
+         * this skb was not yet sent, or we are under memory pressure.
+         * Note: in the latter case, FIN packet will be sent after a timeout,
+         * as TCP stack thinks it has already been transmitted.
          */
-        mss_now = tcp_current_mss(sk);
-
-        if (tcp_send_head(sk)) {
-                TCP_SKB_CB(skb)->tcp_flags |= TCPHDR_FIN;
-                TCP_SKB_CB(skb)->end_seq++;
+        if (tskb && (tcp_send_head(sk) || sk_under_memory_pressure(sk))) {
+coalesce:
+                TCP_SKB_CB(tskb)->tcp_flags |= TCPHDR_FIN;
+                TCP_SKB_CB(tskb)->end_seq++;
                 tp->write_seq++;
+                if (!tcp_send_head(sk)) {
+                        /* This means tskb was already sent.
+                         * Pretend we included the FIN on previous transmit.
+                         * We need to set tp->snd_nxt to the value it would have
+                         * if FIN had been sent. This is because retransmit path
+                         * does not change tp->snd_nxt.
+                         */
+                        tp->snd_nxt++;
+                        return;
+                }
         } else {
-                /* Socket is locked, keep trying until memory is available. */
-                for (;;) {
-                        skb = sk_stream_alloc_skb(sk, 0, sk->sk_allocation);
-                        if (skb)
-                                break;
-                        yield();
+                skb = alloc_skb_fclone(MAX_TCP_HEADER, sk->sk_allocation);
+                if (unlikely(!skb)) {
+                        if (tskb)
+                                goto coalesce;
+                        return;
                 }
+                skb_reserve(skb, MAX_TCP_HEADER);
+                sk_forced_wmem_schedule(sk, skb->truesize);
                 /* FIN eats a sequence byte, write_seq advanced by tcp_queue_skb(). */
                 tcp_init_nondata_skb(skb, tp->write_seq,
                                      TCPHDR_ACK | TCPHDR_FIN);
                 tcp_queue_skb(sk, skb);
         }
-        __tcp_push_pending_frames(sk, mss_now, TCP_NAGLE_OFF);
+        __tcp_push_pending_frames(sk, tcp_current_mss(sk), TCP_NAGLE_OFF);
 }
 
 /* We get here when a process closes a file descriptor (either due to
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index b5e6cc1d4a73..a38d3ac0f18f 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1246,7 +1246,6 @@ static void ip6gre_tunnel_setup(struct net_device *dev)
 static int ip6gre_tunnel_init(struct net_device *dev)
 {
         struct ip6_tnl *tunnel;
-        int i;
 
         tunnel = netdev_priv(dev);
 
@@ -1260,16 +1259,10 @@ static int ip6gre_tunnel_init(struct net_device *dev)
         if (ipv6_addr_any(&tunnel->parms.raddr))
                 dev->header_ops = &ip6gre_header_ops;
 
-        dev->tstats = alloc_percpu(struct pcpu_sw_netstats);
+        dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
         if (!dev->tstats)
                 return -ENOMEM;
 
-        for_each_possible_cpu(i) {
-                struct pcpu_sw_netstats *ip6gre_tunnel_stats;
-                ip6gre_tunnel_stats = per_cpu_ptr(dev->tstats, i);
-                u64_stats_init(&ip6gre_tunnel_stats->syncp);
-        }
-
         return 0;
 }
 
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index ad51df85aa00..b6575d665568 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -946,7 +946,8 @@ static struct sock *tcp_v6_hnd_req(struct sock *sk, struct sk_buff *skb)
                                    &ipv6_hdr(skb)->daddr, tcp_v6_iif(skb));
         if (req) {
                 nsk = tcp_check_req(sk, skb, req, false);
-                reqsk_put(req);
+                if (!nsk)
+                        reqsk_put(req);
                 return nsk;
         }
         nsk = __inet6_lookup_established(sock_net(sk), &tcp_hashinfo,
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index db8a2ea6d4de..954810c76a86 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -53,6 +53,11 @@ static struct mpls_route *mpls_route_input_rcu(struct net *net, unsigned index)
         return rt;
 }
 
+static inline struct mpls_dev *mpls_dev_get(const struct net_device *dev)
+{
+        return rcu_dereference_rtnl(dev->mpls_ptr);
+}
+
 static bool mpls_output_possible(const struct net_device *dev)
 {
         return dev && (dev->flags & IFF_UP) && netif_carrier_ok(dev);
@@ -136,6 +141,7 @@ static int mpls_forward(struct sk_buff *skb, struct net_device *dev,
         struct mpls_route *rt;
         struct mpls_entry_decoded dec;
         struct net_device *out_dev;
+        struct mpls_dev *mdev;
         unsigned int hh_len;
         unsigned int new_header_size;
         unsigned int mtu;
@@ -143,6 +149,10 @@ static int mpls_forward(struct sk_buff *skb, struct net_device *dev,
 
         /* Careful this entire function runs inside of an rcu critical section */
 
+        mdev = mpls_dev_get(dev);
+        if (!mdev || !mdev->input_enabled)
+                goto drop;
+
         if (skb->pkt_type != PACKET_HOST)
                 goto drop;
 
@@ -352,9 +362,9 @@ static int mpls_route_add(struct mpls_route_config *cfg)
         if (!dev)
                 goto errout;
 
-        /* For now just support ethernet devices */
+        /* Ensure this is a supported device */
         err = -EINVAL;
-        if ((dev->type != ARPHRD_ETHER) && (dev->type != ARPHRD_LOOPBACK))
+        if (!mpls_dev_get(dev))
                 goto errout;
 
         err = -EINVAL;
@@ -428,10 +438,89 @@ errout:
         return err;
 }
 
+#define MPLS_PERDEV_SYSCTL_OFFSET(field)        \
+        (&((struct mpls_dev *)0)->field)
+
+static const struct ctl_table mpls_dev_table[] = {
+        {
+                .procname       = "input",
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec,
+                .data           = MPLS_PERDEV_SYSCTL_OFFSET(input_enabled),
+        },
+        { }
+};
+
+static int mpls_dev_sysctl_register(struct net_device *dev,
+                                    struct mpls_dev *mdev)
+{
+        char path[sizeof("net/mpls/conf/") + IFNAMSIZ];
+        struct ctl_table *table;
+        int i;
+
+        table = kmemdup(&mpls_dev_table, sizeof(mpls_dev_table), GFP_KERNEL);
+        if (!table)
+                goto out;
+
+        /* Table data contains only offsets relative to the base of
+         * the mdev at this point, so make them absolute.
+         */
+        for (i = 0; i < ARRAY_SIZE(mpls_dev_table); i++)
+                table[i].data = (char *)mdev + (uintptr_t)table[i].data;
+
+        snprintf(path, sizeof(path), "net/mpls/conf/%s", dev->name);
+
+        mdev->sysctl = register_net_sysctl(dev_net(dev), path, table);
+        if (!mdev->sysctl)
+                goto free;
+
+        return 0;
+
+free:
+        kfree(table);
+out:
+        return -ENOBUFS;
+}
+
+static void mpls_dev_sysctl_unregister(struct mpls_dev *mdev)
+{
+        struct ctl_table *table;
+
+        table = mdev->sysctl->ctl_table_arg;
+        unregister_net_sysctl_table(mdev->sysctl);
+        kfree(table);
+}
+
+static struct mpls_dev *mpls_add_dev(struct net_device *dev)
+{
+        struct mpls_dev *mdev;
+        int err = -ENOMEM;
+
+        ASSERT_RTNL();
+
+        mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
+        if (!mdev)
+                return ERR_PTR(err);
+
+        err = mpls_dev_sysctl_register(dev, mdev);
+        if (err)
+                goto free;
+
+        rcu_assign_pointer(dev->mpls_ptr, mdev);
+
+        return mdev;
+
+free:
+        kfree(mdev);
+        return ERR_PTR(err);
+}
+
 static void mpls_ifdown(struct net_device *dev)
 {
         struct mpls_route __rcu **platform_label;
         struct net *net = dev_net(dev);
+        struct mpls_dev *mdev;
         unsigned index;
 
         platform_label = rtnl_dereference(net->mpls.platform_label);
@@ -443,14 +532,35 @@ static void mpls_ifdown(struct net_device *dev)
                         continue;
                 rt->rt_dev = NULL;
         }
+
+        mdev = mpls_dev_get(dev);
+        if (!mdev)
+                return;
+
+        mpls_dev_sysctl_unregister(mdev);
+
+        RCU_INIT_POINTER(dev->mpls_ptr, NULL);
+
+        kfree(mdev);
 }
 
 static int mpls_dev_notify(struct notifier_block *this, unsigned long event,
                            void *ptr)
 {
         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+        struct mpls_dev *mdev;
 
         switch(event) {
+        case NETDEV_REGISTER:
+                /* For now just support ethernet devices */
+                if ((dev->type == ARPHRD_ETHER) ||
+                    (dev->type == ARPHRD_LOOPBACK)) {
+                        mdev = mpls_add_dev(dev);
+                        if (IS_ERR(mdev))
+                                return notifier_from_errno(PTR_ERR(mdev));
+                }
+                break;
+
         case NETDEV_UNREGISTER:
                 mpls_ifdown(dev);
                 break;
@@ -536,6 +646,15 @@ int nla_get_labels(const struct nlattr *nla,
                 if ((dec.bos != bos) || dec.ttl || dec.tc)
                         return -EINVAL;
 
+                switch (dec.label) {
+                case LABEL_IMPLICIT_NULL:
+                        /* RFC3032: This is a label that an LSR may
+                         * assign and distribute, but which never
+                         * actually appears in the encapsulation.
+                         */
+                        return -EINVAL;
+                }
+
                 label[i] = dec.label;
         }
         *labels = nla_labels;
@@ -912,7 +1031,7 @@ static int mpls_platform_labels(struct ctl_table *table, int write,
         return ret;
 }
 
-static struct ctl_table mpls_table[] = {
+static const struct ctl_table mpls_table[] = {
         {
                 .procname       = "platform_labels",
                 .data           = NULL,
diff --git a/net/mpls/internal.h b/net/mpls/internal.h
index fb6de92052c4..693877d69606 100644
--- a/net/mpls/internal.h
+++ b/net/mpls/internal.h
@@ -22,6 +22,12 @@ struct mpls_entry_decoded {
         u8 bos;
 };
 
+struct mpls_dev {
+        int                     input_enabled;
+
+        struct ctl_table_header *sysctl;
+};
+
 struct sk_buff;
 
 static inline struct mpls_shim_hdr *mpls_hdr(const struct sk_buff *skb)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 78af83bc9c8e..ad9d11fb29fd 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -4340,7 +4340,6 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
         case NFT_CONTINUE:
         case NFT_BREAK:
         case NFT_RETURN:
-                desc->len = sizeof(data->verdict);
                 break;
         case NFT_JUMP:
         case NFT_GOTO:
@@ -4355,10 +4354,10 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
 
                 chain->use++;
                 data->verdict.chain = chain;
-                desc->len = sizeof(data);
                 break;
         }
 
+        desc->len = sizeof(data->verdict);
         desc->type = NFT_DATA_VERDICT;
         return 0;
 }
diff --git a/net/netfilter/nft_reject.c b/net/netfilter/nft_reject.c
index 57d3e1af5630..0522fc9bfb0a 100644
--- a/net/netfilter/nft_reject.c
+++ b/net/netfilter/nft_reject.c
@@ -63,6 +63,8 @@ int nft_reject_dump(struct sk_buff *skb, const struct nft_expr *expr)
                 if (nla_put_u8(skb, NFTA_REJECT_ICMP_CODE, priv->icmp_code))
                         goto nla_put_failure;
                 break;
+        default:
+                break;
         }
 
         return 0;
diff --git a/net/netfilter/nft_reject_inet.c b/net/netfilter/nft_reject_inet.c
index 62cabee42fbe..635dbba93d01 100644
--- a/net/netfilter/nft_reject_inet.c
+++ b/net/netfilter/nft_reject_inet.c
@@ -108,6 +108,8 @@ static int nft_reject_inet_dump(struct sk_buff *skb,
                 if (nla_put_u8(skb, NFTA_REJECT_ICMP_CODE, priv->icmp_code))
                         goto nla_put_failure;
                 break;
+        default:
+                break;
         }
 
         return 0;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 19909d0786a2..ec4adbdcb9b4 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1629,13 +1629,11 @@ static struct sk_buff *netlink_alloc_large_skb(unsigned int size,
         if (data == NULL)
                 return NULL;
 
-        skb = build_skb(data, size);
+        skb = __build_skb(data, size);
         if (skb == NULL)
                 vfree(data);
-        else {
-                skb->head_frag = 0;
+        else
                 skb->destructor = netlink_skb_destructor;
-        }
 
         return skb;
 }
diff --git a/net/sched/act_connmark.c b/net/sched/act_connmark.c
index 8e472518f9f6..295d14bd6c67 100644
--- a/net/sched/act_connmark.c
+++ b/net/sched/act_connmark.c
@@ -63,7 +63,6 @@ static int tcf_connmark(struct sk_buff *skb, const struct tc_action *a,
                 skb->mark = c->mark;
                 /* using overlimits stats to count how many packets marked */
                 ca->tcf_qstats.overlimits++;
-                nf_ct_put(c);
                 goto out;
         }
 
@@ -82,7 +81,6 @@ static int tcf_connmark(struct sk_buff *skb, const struct tc_action *a,
         nf_ct_put(c);
 
 out:
-        skb->nfct = NULL;
         spin_unlock(&ca->tcf_lock);
         return ca->tcf_action;
 }
diff --git a/net/sunrpc/auth_gss/gss_rpc_xdr.c b/net/sunrpc/auth_gss/gss_rpc_xdr.c
index 1ec19f6f0c2b..eeeba5adee6d 100644
--- a/net/sunrpc/auth_gss/gss_rpc_xdr.c
+++ b/net/sunrpc/auth_gss/gss_rpc_xdr.c
@@ -793,20 +793,26 @@ int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp,
 {
         u32 value_follows;
         int err;
+        struct page *scratch;
+
+        scratch = alloc_page(GFP_KERNEL);
+        if (!scratch)
+                return -ENOMEM;
+        xdr_set_scratch_buffer(xdr, page_address(scratch), PAGE_SIZE);
 
         /* res->status */
         err = gssx_dec_status(xdr, &res->status);
         if (err)
-                return err;
+                goto out_free;
 
         /* res->context_handle */
         err = gssx_dec_bool(xdr, &value_follows);
         if (err)
-                return err;
+                goto out_free;
         if (value_follows) {
                 err = gssx_dec_ctx(xdr, res->context_handle);
                 if (err)
-                        return err;
+                        goto out_free;
         } else {
                 res->context_handle = NULL;
         }
@@ -814,11 +820,11 @@ int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp,
         /* res->output_token */
         err = gssx_dec_bool(xdr, &value_follows);
         if (err)
-                return err;
+                goto out_free;
         if (value_follows) {
                 err = gssx_dec_buffer(xdr, res->output_token);
                 if (err)
-                        return err;
+                        goto out_free;
         } else {
                 res->output_token = NULL;
         }
@@ -826,14 +832,17 @@ int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp,
         /* res->delegated_cred_handle */
         err = gssx_dec_bool(xdr, &value_follows);
         if (err)
-                return err;
+                goto out_free;
         if (value_follows) {
                 /* we do not support upcall servers sending this data. */
-                return -EINVAL;
+                err = -EINVAL;
+                goto out_free;
         }
 
         /* res->options */
         err = gssx_dec_option_array(xdr, &res->options);
 
+out_free:
+        __free_page(scratch);
         return err;
 }
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 3613e72e858e..70e3dacbf84a 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -591,14 +591,14 @@ void tipc_bearer_stop(struct net *net)
 
 /* Caller should hold rtnl_lock to protect the bearer */
 static int __tipc_nl_add_bearer(struct tipc_nl_msg *msg,
-                                struct tipc_bearer *bearer)
+                                struct tipc_bearer *bearer, int nlflags)
 {
         void *hdr;
         struct nlattr *attrs;
         struct nlattr *prop;
 
         hdr = genlmsg_put(msg->skb, msg->portid, msg->seq, &tipc_genl_family,
-                          NLM_F_MULTI, TIPC_NL_BEARER_GET);
+                          nlflags, TIPC_NL_BEARER_GET);
         if (!hdr)
                 return -EMSGSIZE;
 
@@ -657,7 +657,7 @@ int tipc_nl_bearer_dump(struct sk_buff *skb, struct netlink_callback *cb)
                 if (!bearer)
                         continue;
 
-                err = __tipc_nl_add_bearer(&msg, bearer);
+                err = __tipc_nl_add_bearer(&msg, bearer, NLM_F_MULTI);
                 if (err)
                         break;
         }
@@ -705,7 +705,7 @@ int tipc_nl_bearer_get(struct sk_buff *skb, struct genl_info *info)
                 goto err_out;
         }
 
-        err = __tipc_nl_add_bearer(&msg, bearer);
+        err = __tipc_nl_add_bearer(&msg, bearer, 0);
         if (err)
                 goto err_out;
         rtnl_unlock();
@@ -857,14 +857,14 @@ int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info)
 }
 
 static int __tipc_nl_add_media(struct tipc_nl_msg *msg,
-                               struct tipc_media *media)
+                               struct tipc_media *media, int nlflags)
 {
         void *hdr;
         struct nlattr *attrs;
         struct nlattr *prop;
 
         hdr = genlmsg_put(msg->skb, msg->portid, msg->seq, &tipc_genl_family,
-                          NLM_F_MULTI, TIPC_NL_MEDIA_GET);
+                          nlflags, TIPC_NL_MEDIA_GET);
         if (!hdr)
                 return -EMSGSIZE;
 
@@ -916,7 +916,8 @@ int tipc_nl_media_dump(struct sk_buff *skb, struct netlink_callback *cb)
 
         rtnl_lock();
         for (; media_info_array[i] != NULL; i++) {
-                err = __tipc_nl_add_media(&msg, media_info_array[i]);
+                err = __tipc_nl_add_media(&msg, media_info_array[i],
+                                          NLM_F_MULTI);
                 if (err)
                         break;
         }
@@ -963,7 +964,7 @@ int tipc_nl_media_get(struct sk_buff *skb, struct genl_info *info)
                 goto err_out;
         }
 
-        err = __tipc_nl_add_media(&msg, media);
+        err = __tipc_nl_add_media(&msg, media, 0);
         if (err)
                 goto err_out;
         rtnl_unlock();
diff --git a/net/tipc/link.c b/net/tipc/link.c
index a6b30df6ec02..43a515dc97b0 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1145,11 +1145,8 @@ void tipc_rcv(struct net *net, struct sk_buff *skb, struct tipc_bearer *b_ptr)
                 }
                 /* Synchronize with parallel link if applicable */
                 if (unlikely((l_ptr->flags & LINK_SYNCHING) && !msg_dup(msg))) {
-                        link_handle_out_of_seq_msg(l_ptr, skb);
-                        if (link_synch(l_ptr))
-                                link_retrieve_defq(l_ptr, &head);
-                        skb = NULL;
-                        goto unlock;
+                        if (!link_synch(l_ptr))
+                                goto unlock;
                 }
                 l_ptr->next_in_no++;
                 if (unlikely(!skb_queue_empty(&l_ptr->deferdq)))
@@ -2013,7 +2010,7 @@ msg_full:
 
 /* Caller should hold appropriate locks to protect the link */
 static int __tipc_nl_add_link(struct net *net, struct tipc_nl_msg *msg,
-                              struct tipc_link *link)
+                              struct tipc_link *link, int nlflags)
 {
         int err;
         void *hdr;
@@ -2022,7 +2019,7 @@ static int __tipc_nl_add_link(struct net *net, struct tipc_nl_msg *msg,
         struct tipc_net *tn = net_generic(net, tipc_net_id);
 
         hdr = genlmsg_put(msg->skb, msg->portid, msg->seq, &tipc_genl_family,
-                          NLM_F_MULTI, TIPC_NL_LINK_GET);
+                          nlflags, TIPC_NL_LINK_GET);
         if (!hdr)
                 return -EMSGSIZE;
 
@@ -2095,7 +2092,7 @@ static int __tipc_nl_add_node_links(struct net *net, struct tipc_nl_msg *msg,
                 if (!node->links[i])
                         continue;
 
-                err = __tipc_nl_add_link(net, msg, node->links[i]);
+                err = __tipc_nl_add_link(net, msg, node->links[i], NLM_F_MULTI);
                 if (err)
                         return err;
         }
@@ -2143,7 +2140,6 @@ int tipc_nl_link_dump(struct sk_buff *skb, struct netlink_callback *cb)
                         err = __tipc_nl_add_node_links(net, &msg, node,
                                                        &prev_link);
                         tipc_node_unlock(node);
-                        tipc_node_put(node);
                         if (err)
                                 goto out;
 
@@ -2210,7 +2206,7 @@ int tipc_nl_link_get(struct sk_buff *skb, struct genl_info *info)
                 goto err_out;
         }
 
-        err = __tipc_nl_add_link(net, &msg, link);
+        err = __tipc_nl_add_link(net, &msg, link, 0);
         if (err)
                 goto err_out;
 
diff --git a/net/tipc/server.c b/net/tipc/server.c
index ab6183cdb121..77ff03ed1e18 100644
--- a/net/tipc/server.c
+++ b/net/tipc/server.c
@@ -102,7 +102,7 @@ static void tipc_conn_kref_release(struct kref *kref)
                 }
                 saddr->scope = -TIPC_NODE_SCOPE;
                 kernel_bind(sock, (struct sockaddr *)saddr, sizeof(*saddr));
-                sk_release_kernel(sk);
+                sock_release(sock);
                 con->sock = NULL;
         }
 
@@ -321,12 +321,9 @@ static struct socket *tipc_create_listen_sock(struct tipc_conn *con)
         struct socket *sock = NULL;
         int ret;
 
-        ret = sock_create_kern(AF_TIPC, SOCK_SEQPACKET, 0, &sock);
+        ret = __sock_create(s->net, AF_TIPC, SOCK_SEQPACKET, 0, &sock, 1);
         if (ret < 0)
                 return NULL;
-
-        sk_change_net(sock->sk, s->net);
-
         ret = kernel_setsockopt(sock, SOL_TIPC, TIPC_IMPORTANCE,
                                 (char *)&s->imp, sizeof(s->imp));
         if (ret < 0)
@@ -376,7 +373,7 @@ static struct socket *tipc_create_listen_sock(struct tipc_conn *con)
 
 create_err:
         kernel_sock_shutdown(sock, SHUT_RDWR);
-        sk_release_kernel(sock->sk);
+        sock_release(sock);
         return NULL;
 }
 
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index ee90d74d7516..9074b5cede38 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -1764,13 +1764,14 @@ static int tipc_sk_enqueue(struct sk_buff_head *inputq, struct sock *sk,
 int tipc_sk_rcv(struct net *net, struct sk_buff_head *inputq)
 {
         u32 dnode, dport = 0;
-        int err = -TIPC_ERR_NO_PORT;
+        int err;
         struct sk_buff *skb;
         struct tipc_sock *tsk;
         struct tipc_net *tn;
         struct sock *sk;
 
         while (skb_queue_len(inputq)) {
+                err = -TIPC_ERR_NO_PORT;
                 skb = NULL;
                 dport = tipc_skb_peek_port(inputq, dport);
                 tsk = tipc_sk_lookup(net, dport);
diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index 99f7012b23b9..a73a226f2d33 100644
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -95,39 +95,36 @@ static DECLARE_WAIT_QUEUE_HEAD(unix_gc_wait);
 
 unsigned int unix_tot_inflight;
 
-
 struct sock *unix_get_socket(struct file *filp)
 {
         struct sock *u_sock = NULL;
         struct inode *inode = file_inode(filp);
 
-        /*
-         *      Socket ?
-         */
+        /* Socket ? */
         if (S_ISSOCK(inode->i_mode) && !(filp->f_mode & FMODE_PATH)) {
                 struct socket *sock = SOCKET_I(inode);
                 struct sock *s = sock->sk;
 
-                /*
-                 *      PF_UNIX ?
-                 */
+                /* PF_UNIX ? */
                 if (s && sock->ops && sock->ops->family == PF_UNIX)
                         u_sock = s;
         }
         return u_sock;
 }
 
-/*
- *      Keep the number of times in flight count for the file
- *      descriptor if it is for an AF_UNIX socket.
+/* Keep the number of times in flight count for the file
+ * descriptor if it is for an AF_UNIX socket.
  */
 
 void unix_inflight(struct file *fp)
 {
         struct sock *s = unix_get_socket(fp);
+
         if (s) {
                 struct unix_sock *u = unix_sk(s);
+
                 spin_lock(&unix_gc_lock);
+
                 if (atomic_long_inc_return(&u->inflight) == 1) {
                         BUG_ON(!list_empty(&u->link));
                         list_add_tail(&u->link, &gc_inflight_list);
@@ -142,10 +139,13 @@ void unix_inflight(struct file *fp)
 void unix_notinflight(struct file *fp)
 {
         struct sock *s = unix_get_socket(fp);
+
         if (s) {
                 struct unix_sock *u = unix_sk(s);
+
                 spin_lock(&unix_gc_lock);
                 BUG_ON(list_empty(&u->link));
+
                 if (atomic_long_dec_and_test(&u->inflight))
                         list_del_init(&u->link);
                 unix_tot_inflight--;
@@ -161,32 +161,27 @@ static void scan_inflight(struct sock *x, void (*func)(struct unix_sock *),
 
         spin_lock(&x->sk_receive_queue.lock);
         skb_queue_walk_safe(&x->sk_receive_queue, skb, next) {
-                /*
-                 *      Do we have file descriptors ?
-                 */
+                /* Do we have file descriptors ? */
                 if (UNIXCB(skb).fp) {
                         bool hit = false;
-                        /*
-                         *      Process the descriptors of this socket
-                         */
+                        /* Process the descriptors of this socket */
                         int nfd = UNIXCB(skb).fp->count;
                         struct file **fp = UNIXCB(skb).fp->fp;
+
                         while (nfd--) {
-                                /*
-                                 *      Get the socket the fd matches
-                                 *      if it indeed does so
-                                 */
+                                /* Get the socket the fd matches if it indeed does so */
                                 struct sock *sk = unix_get_socket(*fp++);
+
                                 if (sk) {
                                         struct unix_sock *u = unix_sk(sk);
 
-                                        /*
-                                         * Ignore non-candidates, they could
+                                        /* Ignore non-candidates, they could
                                          * have been added to the queues after
                                          * starting the garbage collection
                                          */
                                         if (test_bit(UNIX_GC_CANDIDATE, &u->gc_flags)) {
                                                 hit = true;
+
                                                 func(u);
                                         }
                                 }
@@ -203,24 +198,22 @@ static void scan_inflight(struct sock *x, void (*func)(struct unix_sock *),
 static void scan_children(struct sock *x, void (*func)(struct unix_sock *),
                           struct sk_buff_head *hitlist)
 {
-        if (x->sk_state != TCP_LISTEN)
+        if (x->sk_state != TCP_LISTEN) {
                 scan_inflight(x, func, hitlist);
-        else {
+        } else {
                 struct sk_buff *skb;
                 struct sk_buff *next;
                 struct unix_sock *u;
                 LIST_HEAD(embryos);
 
-                /*
-                 * For a listening socket collect the queued embryos
+                /* For a listening socket collect the queued embryos
                  * and perform a scan on them as well.
                  */
                 spin_lock(&x->sk_receive_queue.lock);
                 skb_queue_walk_safe(&x->sk_receive_queue, skb, next) {
                         u = unix_sk(skb->sk);
 
-                        /*
-                         * An embryo cannot be in-flight, so it's safe
+                        /* An embryo cannot be in-flight, so it's safe
                          * to use the list link.
                          */
                         BUG_ON(!list_empty(&u->link));
@@ -249,8 +242,7 @@ static void inc_inflight(struct unix_sock *usk)
 static void inc_inflight_move_tail(struct unix_sock *u)
 {
         atomic_long_inc(&u->inflight);
-        /*
-         * If this still might be part of a cycle, move it to the end
+        /* If this still might be part of a cycle, move it to the end
          * of the list, so that it's checked even if it was already
          * passed over
          */
@@ -263,8 +255,7 @@ static bool gc_in_progress;
 
 void wait_for_unix_gc(void)
 {
-        /*
-         * If number of inflight sockets is insane,
+        /* If number of inflight sockets is insane,
          * force a garbage collect right now.
          */
         if (unix_tot_inflight > UNIX_INFLIGHT_TRIGGER_GC && !gc_in_progress)
@@ -288,8 +279,7 @@ void unix_gc(void)
                 goto out;
 
         gc_in_progress = true;
-        /*
-         * First, select candidates for garbage collection.  Only
+        /* First, select candidates for garbage collection.  Only
          * in-flight sockets are considered, and from those only ones
          * which don't have any external reference.
          *
@@ -320,15 +310,13 @@ void unix_gc(void)
                 }
         }
 
-        /*
-         * Now remove all internal in-flight reference to children of
+        /* Now remove all internal in-flight reference to children of
          * the candidates.
          */
         list_for_each_entry(u, &gc_candidates, link)
                 scan_children(&u->sk, dec_inflight, NULL);
 
-        /*
-         * Restore the references for children of all candidates,
+        /* Restore the references for children of all candidates,
          * which have remaining references.  Do this recursively, so
          * only those remain, which form cyclic references.
          *
@@ -350,8 +338,7 @@ void unix_gc(void)
         }
         list_del(&cursor);
 
-        /*
-         * not_cycle_list contains those sockets which do not make up a
+        /* not_cycle_list contains those sockets which do not make up a
          * cycle.  Restore these to the inflight list.
          */
         while (!list_empty(&not_cycle_list)) {
@@ -360,8 +347,7 @@ void unix_gc(void)
                 list_move_tail(&u->link, &gc_inflight_list);
         }
 
-        /*
-         * Now gc_candidates contains only garbage.  Restore original
+        /* Now gc_candidates contains only garbage.  Restore original
          * inflight counters for these as well, and remove the skbuffs
          * which are creating the cycle(s).
          */
diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c
index 37d0220a094c..db7a2e5e4a14 100644
--- a/sound/pci/emu10k1/emu10k1.c
+++ b/sound/pci/emu10k1/emu10k1.c
@@ -183,8 +183,10 @@ static int snd_card_emu10k1_probe(struct pci_dev *pci,
         }
 #endif
  
-        strcpy(card->driver, emu->card_capabilities->driver);
-        strcpy(card->shortname, emu->card_capabilities->name);
+        strlcpy(card->driver, emu->card_capabilities->driver,
+                sizeof(card->driver));
+        strlcpy(card->shortname, emu->card_capabilities->name,
+                sizeof(card->shortname));
         snprintf(card->longname, sizeof(card->longname),
                  "%s (rev.%d, serial:0x%x) at 0x%lx, irq %i",
                  card->shortname, emu->revision, emu->serial, emu->port, emu->irq);
diff --git a/sound/pci/emu10k1/emu10k1_callback.c b/sound/pci/emu10k1/emu10k1_callback.c
index 874cd76c7b7f..d2c7ea3a7610 100644
--- a/sound/pci/emu10k1/emu10k1_callback.c
+++ b/sound/pci/emu10k1/emu10k1_callback.c
@@ -415,7 +415,7 @@ start_voice(struct snd_emux_voice *vp)
         snd_emu10k1_ptr_write(hw, Z2, ch, 0);
 
         /* invalidate maps */
-        temp = (hw->silent_page.addr << 1) | MAP_PTI_MASK;
+        temp = (hw->silent_page.addr << hw->address_mode) | (hw->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0);
         snd_emu10k1_ptr_write(hw, MAPA, ch, temp);
         snd_emu10k1_ptr_write(hw, MAPB, ch, temp);
 #if 0
@@ -436,7 +436,7 @@ start_voice(struct snd_emux_voice *vp)
                 snd_emu10k1_ptr_write(hw, CDF, ch, sample);
 
                 /* invalidate maps */
-                temp = ((unsigned int)hw->silent_page.addr << 1) | MAP_PTI_MASK;
+                temp = ((unsigned int)hw->silent_page.addr << hw_address_mode) | (hw->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0);
                 snd_emu10k1_ptr_write(hw, MAPA, ch, temp);
                 snd_emu10k1_ptr_write(hw, MAPB, ch, temp);
                 
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index 54079f5d5673..a4548147c621 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -282,7 +282,7 @@ static int snd_emu10k1_init(struct snd_emu10k1 *emu, int enable_ir, int resume)
         snd_emu10k1_ptr_write(emu, TCB, 0, 0);  /* taken from original driver */
         snd_emu10k1_ptr_write(emu, TCBS, 0, 4); /* taken from original driver */
 
-        silent_page = (emu->silent_page.addr << 1) | MAP_PTI_MASK;
+        silent_page = (emu->silent_page.addr << emu->address_mode) | (emu->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0);
         for (ch = 0; ch < NUM_G; ch++) {
                 snd_emu10k1_ptr_write(emu, MAPA, ch, silent_page);
                 snd_emu10k1_ptr_write(emu, MAPB, ch, silent_page);
@@ -348,6 +348,11 @@ static int snd_emu10k1_init(struct snd_emu10k1 *emu, int enable_ir, int resume)
                 outl(reg | A_IOCFG_GPOUT0, emu->port + A_IOCFG);
         }
 
+        if (emu->address_mode == 0) {
+                /* use 16M in 4G */
+                outl(inl(emu->port + HCFG) | HCFG_EXPANDED_MEM, emu->port + HCFG);
+        }
+
         return 0;
 }
 
@@ -1446,7 +1451,7 @@ static struct snd_emu_chip_details emu_chip_details[] = {
          *
          */
         {.vendor = 0x1102, .device = 0x0008, .subsystem = 0x20011102,
-         .driver = "Audigy2", .name = "SB Audigy 2 ZS Notebook [SB0530]",
+         .driver = "Audigy2", .name = "Audigy 2 ZS Notebook [SB0530]",
          .id = "Audigy2",
          .emu10k2_chip = 1,
          .ca0108_chip = 1,
@@ -1596,7 +1601,7 @@ static struct snd_emu_chip_details emu_chip_details[] = {
          .adc_1361t = 1,  /* 24 bit capture instead of 16bit */
          .ac97_chip = 1} ,
         {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x10051102,
-         .driver = "Audigy2", .name = "SB Audigy 2 Platinum EX [SB0280]",
+         .driver = "Audigy2", .name = "Audigy 2 Platinum EX [SB0280]",
          .id = "Audigy2",
          .emu10k2_chip = 1,
          .ca0102_chip = 1,
@@ -1902,8 +1907,10 @@ int snd_emu10k1_create(struct snd_card *card,
 
         is_audigy = emu->audigy = c->emu10k2_chip;
 
+        /* set addressing mode */
+        emu->address_mode = is_audigy ? 0 : 1;
         /* set the DMA transfer mask */
-        emu->dma_mask = is_audigy ? AUDIGY_DMA_MASK : EMU10K1_DMA_MASK;
+        emu->dma_mask = emu->address_mode ? EMU10K1_DMA_MASK : AUDIGY_DMA_MASK;
         if (pci_set_dma_mask(pci, emu->dma_mask) < 0 ||
             pci_set_consistent_dma_mask(pci, emu->dma_mask) < 0) {
                 dev_err(card->dev,
@@ -1928,7 +1935,7 @@ int snd_emu10k1_create(struct snd_card *card,
 
         emu->max_cache_pages = max_cache_bytes >> PAGE_SHIFT;
         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
-                                32 * 1024, &emu->ptb_pages) < 0) {
+                                (emu->address_mode ? 32 : 16) * 1024, &emu->ptb_pages) < 0) {
                 err = -ENOMEM;
                 goto error;
         }
@@ -2027,8 +2034,8 @@ int snd_emu10k1_create(struct snd_card *card,
 
         /* Clear silent pages and set up pointers */
         memset(emu->silent_page.area, 0, PAGE_SIZE);
-        silent_page = emu->silent_page.addr << 1;
-        for (idx = 0; idx < MAXPAGES; idx++)
+        silent_page = emu->silent_page.addr << emu->address_mode;
+        for (idx = 0; idx < (emu->address_mode ? MAXPAGES1 : MAXPAGES0); idx++)
                 ((u32 *)emu->ptb_pages.area)[idx] = cpu_to_le32(silent_page | idx);
 
         /* set up voice indices */
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c
index 0dc07385af0e..14a305bd8a98 100644
--- a/sound/pci/emu10k1/emupcm.c
+++ b/sound/pci/emu10k1/emupcm.c
@@ -380,7 +380,7 @@ static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu,
         snd_emu10k1_ptr_write(emu, Z1, voice, 0);
         snd_emu10k1_ptr_write(emu, Z2, voice, 0);
         /* invalidate maps */
-        silent_page = ((unsigned int)emu->silent_page.addr << 1) | MAP_PTI_MASK;
+        silent_page = ((unsigned int)emu->silent_page.addr << emu->address_mode) | (emu->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0);
         snd_emu10k1_ptr_write(emu, MAPA, voice, silent_page);
         snd_emu10k1_ptr_write(emu, MAPB, voice, silent_page);
         /* modulation envelope */
diff --git a/sound/pci/emu10k1/memory.c b/sound/pci/emu10k1/memory.c
index c68e6dd2fa67..4f1f69be1865 100644
--- a/sound/pci/emu10k1/memory.c
+++ b/sound/pci/emu10k1/memory.c
@@ -34,10 +34,11 @@
  * aligned pages in others
  */
 #define __set_ptb_entry(emu,page,addr) \
-        (((u32 *)(emu)->ptb_pages.area)[page] = cpu_to_le32(((addr) << 1) | (page)))
+        (((u32 *)(emu)->ptb_pages.area)[page] = cpu_to_le32(((addr) << (emu->address_mode)) | (page)))
 
 #define UNIT_PAGES              (PAGE_SIZE / EMUPAGESIZE)
-#define MAX_ALIGN_PAGES         (MAXPAGES / UNIT_PAGES)
+#define MAX_ALIGN_PAGES0                (MAXPAGES0 / UNIT_PAGES)
+#define MAX_ALIGN_PAGES1                (MAXPAGES1 / UNIT_PAGES)
 /* get aligned page from offset address */
 #define get_aligned_page(offset)        ((offset) >> PAGE_SHIFT)
 /* get offset address from aligned page */
@@ -124,7 +125,7 @@ static int search_empty_map_area(struct snd_emu10k1 *emu, int npages, struct lis
                 }
                 page = blk->mapped_page + blk->pages;
         }
-        size = MAX_ALIGN_PAGES - page;
+        size = (emu->address_mode ? MAX_ALIGN_PAGES1 : MAX_ALIGN_PAGES0) - page;
         if (size >= max_size) {
                 *nextp = pos;
                 return page;
@@ -181,7 +182,7 @@ static int unmap_memblk(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)
                 q = get_emu10k1_memblk(p, mapped_link);
                 end_page = q->mapped_page;
         } else
-                end_page = MAX_ALIGN_PAGES;
+                end_page = (emu->address_mode ? MAX_ALIGN_PAGES1 : MAX_ALIGN_PAGES0);
 
         /* remove links */
         list_del(&blk->mapped_link);
@@ -307,7 +308,7 @@ snd_emu10k1_alloc_pages(struct snd_emu10k1 *emu, struct snd_pcm_substream *subst
         if (snd_BUG_ON(!emu))
                 return NULL;
         if (snd_BUG_ON(runtime->dma_bytes <= 0 ||
-                       runtime->dma_bytes >= MAXPAGES * EMUPAGESIZE))
+                       runtime->dma_bytes >= (emu->address_mode ? MAXPAGES1 : MAXPAGES0) * EMUPAGESIZE))
                 return NULL;
         hdr = emu->memhdr;
         if (snd_BUG_ON(!hdr))
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 873ed1bce12b..b49feff0a319 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -873,14 +873,15 @@ struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
         struct hda_pcm *pcm;
         va_list args;
 
-        va_start(args, fmt);
         pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
         if (!pcm)
                 return NULL;
 
         pcm->codec = codec;
         kref_init(&pcm->kref);
+        va_start(args, fmt);
         pcm->name = kvasprintf(GFP_KERNEL, fmt, args);
+        va_end(args);
         if (!pcm->name) {
                 kfree(pcm);
                 return NULL;
@@ -2082,6 +2083,16 @@ static struct snd_kcontrol_new vmaster_mute_mode = {
         .put = vmaster_mute_mode_put,
 };
 
+/* meta hook to call each driver's vmaster hook */
+static void vmaster_hook(void *private_data, int enabled)
+{
+        struct hda_vmaster_mute_hook *hook = private_data;
+
+        if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER)
+                enabled = hook->mute_mode;
+        hook->hook(hook->codec, enabled);
+}
+
 /**
  * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED
  * @codec: the HDA codec
@@ -2100,9 +2111,9 @@ int snd_hda_add_vmaster_hook(struct hda_codec *codec,
 
         if (!hook->hook || !hook->sw_kctl)
                 return 0;
-        snd_ctl_add_vmaster_hook(hook->sw_kctl, hook->hook, codec);
         hook->codec = codec;
         hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
+        snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);
         if (!expose_enum_ctl)
                 return 0;
         kctl = snd_ctl_new1(&vmaster_mute_mode, hook);
@@ -2128,14 +2139,7 @@ void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook)
          */
         if (hook->codec->bus->shutdown)
                 return;
-        switch (hook->mute_mode) {
-        case HDA_VMUTE_FOLLOW_MASTER:
-                snd_ctl_sync_vmaster_hook(hook->sw_kctl);
-                break;
-        default:
-                hook->hook(hook->codec, hook->mute_mode);
-                break;
-        }
+        snd_ctl_sync_vmaster_hook(hook->sw_kctl);
 }
 EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook);
 
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 3d2597b7037b..788f969b1a68 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -3259,7 +3259,8 @@ static int create_input_ctls(struct hda_codec *codec)
                 val = PIN_IN;
                 if (cfg->inputs[i].type == AUTO_PIN_MIC)
                         val |= snd_hda_get_default_vref(codec, pin);
-                if (pin != spec->hp_mic_pin)
+                if (pin != spec->hp_mic_pin &&
+                    !snd_hda_codec_get_pin_target(codec, pin))
                         set_pin_target(codec, pin, val, false);
 
                 if (mixer) {
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 06199e4e930f..e2afd53cc14c 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4190,11 +4190,18 @@ static void alc_shutup_dell_xps13(struct hda_codec *codec)
 static void alc_fixup_dell_xps13(struct hda_codec *codec,
                                 const struct hda_fixup *fix, int action)
 {
-        if (action == HDA_FIXUP_ACT_PROBE) {
-                struct alc_spec *spec = codec->spec;
-                struct hda_input_mux *imux = &spec->gen.input_mux;
-                int i;
+        struct alc_spec *spec = codec->spec;
+        struct hda_input_mux *imux = &spec->gen.input_mux;
+        int i;
 
+        switch (action) {
+        case HDA_FIXUP_ACT_PRE_PROBE:
+                /* mic pin 0x19 must be initialized with Vref Hi-Z, otherwise
+                 * it causes a click noise at start up
+                 */
+                snd_hda_codec_set_pin_target(codec, 0x19, PIN_VREFHIZ);
+                break;
+        case HDA_FIXUP_ACT_PROBE:
                 spec->shutup = alc_shutup_dell_xps13;
 
                 /* Make the internal mic the default input source. */
@@ -4204,6 +4211,7 @@ static void alc_fixup_dell_xps13(struct hda_codec *codec,
                                 break;
                         }
                 }
+                break;
         }
 }
 
diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c
index 0a4ad5feb82e..d51703e30523 100644
--- a/sound/pci/hda/thinkpad_helper.c
+++ b/sound/pci/hda/thinkpad_helper.c
@@ -72,6 +72,7 @@ static void hda_fixup_thinkpad_acpi(struct hda_codec *codec,
                 if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
                         old_vmaster_hook = spec->vmaster_mute.hook;
                         spec->vmaster_mute.hook = update_tpacpi_mute_led;
+                        spec->vmaster_mute_enum = 1;
                         removefunc = false;
                 }
                 if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) {
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 69528ae5410c..be4d741c45ba 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -18,6 +18,7 @@
 #include <linux/platform_device.h>
 #include <linux/spi/spi.h>
 #include <linux/gpio.h>
+#include <linux/acpi.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -2656,6 +2657,15 @@ static const struct i2c_device_id rt5645_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, rt5645_i2c_id);
 
+#ifdef CONFIG_ACPI
+static struct acpi_device_id rt5645_acpi_match[] = {
+        { "10EC5645", 0 },
+        { "10EC5650", 0 },
+        {},
+};
+MODULE_DEVICE_TABLE(acpi, rt5645_acpi_match);
+#endif
+
 static int rt5645_i2c_probe(struct i2c_client *i2c,
                     const struct i2c_device_id *id)
 {
@@ -2770,7 +2780,7 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
 
                 case RT5645_DMIC_DATA_GPIO12:
                         regmap_update_bits(rt5645->regmap, RT5645_DMIC_CTRL1,
-                                RT5645_DMIC_1_DP_MASK, RT5645_DMIC_2_DP_GPIO12);
+                                RT5645_DMIC_2_DP_MASK, RT5645_DMIC_2_DP_GPIO12);
                         regmap_update_bits(rt5645->regmap, RT5645_GPIO_CTRL1,
                                 RT5645_GP12_PIN_MASK,
                                 RT5645_GP12_PIN_DMIC2_SDA);
@@ -2872,6 +2882,7 @@ static struct i2c_driver rt5645_i2c_driver = {
         .driver = {
                 .name = "rt5645",
                 .owner = THIS_MODULE,
+                .acpi_match_table = ACPI_PTR(rt5645_acpi_match),
         },
         .probe = rt5645_i2c_probe,
         .remove   = rt5645_i2c_remove,
diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index af182586712d..169aa471ffbd 100644
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -62,6 +62,9 @@ static const struct reg_default init_list[] = {
         {RT5677_PR_BASE + 0x1e, 0x0000},
         {RT5677_PR_BASE + 0x12, 0x0eaa},
         {RT5677_PR_BASE + 0x14, 0x018a},
+        {RT5677_PR_BASE + 0x15, 0x0490},
+        {RT5677_PR_BASE + 0x38, 0x0f71},
+        {RT5677_PR_BASE + 0x39, 0x0f71},
 };
 #define RT5677_INIT_REG_LEN ARRAY_SIZE(init_list)
 
@@ -914,7 +917,7 @@ static int set_dmic_clk(struct snd_soc_dapm_widget *w,
 {
         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
         struct rt5677_priv *rt5677 = snd_soc_codec_get_drvdata(codec);
-        int idx = rl6231_calc_dmic_clk(rt5677->sysclk);
+        int idx = rl6231_calc_dmic_clk(rt5677->lrck[RT5677_AIF1] << 8);
 
         if (idx < 0)
                 dev_err(codec->dev, "Failed to set DMIC clock\n");
diff --git a/sound/soc/codecs/tfa9879.c b/sound/soc/codecs/tfa9879.c
index 16f1b71edb55..aab0af681e8c 100644
--- a/sound/soc/codecs/tfa9879.c
+++ b/sound/soc/codecs/tfa9879.c
@@ -280,8 +280,8 @@ static int tfa9879_i2c_probe(struct i2c_client *i2c,
         int i;
 
         tfa9879 = devm_kzalloc(&i2c->dev, sizeof(*tfa9879), GFP_KERNEL);
-        if (IS_ERR(tfa9879))
-                return PTR_ERR(tfa9879);
+        if (!tfa9879)
+                return -ENOMEM;
 
         i2c_set_clientdata(i2c, tfa9879);
 
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index e8bb8eef1d16..0d48804218b1 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -1357,7 +1357,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
         }
 
         ssi_private->irq = platform_get_irq(pdev, 0);
-        if (!ssi_private->irq) {
+        if (ssi_private->irq < 0) {
                 dev_err(&pdev->dev, "no irq for node %s\n", pdev->name);
                 return ssi_private->irq;
         }
diff --git a/sound/soc/intel/Makefile b/sound/soc/intel/Makefile
index cd9aee9871a3..3853ec2ddbc7 100644
--- a/sound/soc/intel/Makefile
+++ b/sound/soc/intel/Makefile
@@ -4,7 +4,7 @@ obj-$(CONFIG_SND_SOC_INTEL_SST) += common/
 # Platform Support
 obj-$(CONFIG_SND_SOC_INTEL_HASWELL) += haswell/
 obj-$(CONFIG_SND_SOC_INTEL_BAYTRAIL) += baytrail/
-obj-$(CONFIG_SND_SOC_INTEL_BAYTRAIL) += atom/
+obj-$(CONFIG_SND_SST_MFLD_PLATFORM) += atom/
 
 # Machine support
 obj-$(CONFIG_SND_SOC_INTEL_SST) += boards/
diff --git a/sound/soc/intel/baytrail/sst-baytrail-ipc.c b/sound/soc/intel/baytrail/sst-baytrail-ipc.c
index 1efb33b36303..a839dbfa5218 100644
--- a/sound/soc/intel/baytrail/sst-baytrail-ipc.c
+++ b/sound/soc/intel/baytrail/sst-baytrail-ipc.c
@@ -759,7 +759,6 @@ fw_err:
 dsp_new_err:
         sst_ipc_fini(ipc);
 ipc_init_err:
-        kfree(byt);
 
         return err;
 }
diff --git a/sound/soc/intel/haswell/sst-haswell-ipc.c b/sound/soc/intel/haswell/sst-haswell-ipc.c
index 344a1e9bbce5..324eceb07b25 100644
--- a/sound/soc/intel/haswell/sst-haswell-ipc.c
+++ b/sound/soc/intel/haswell/sst-haswell-ipc.c
@@ -2201,7 +2201,6 @@ dma_err:
 dsp_new_err:
         sst_ipc_fini(ipc);
 ipc_init_err:
-        kfree(hsw);
         return ret;
 }
 EXPORT_SYMBOL_GPL(sst_hsw_dsp_init);
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index 6698d058de29..dc790abaa331 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -194,7 +194,7 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream,
                 int cmd, struct snd_soc_dai *dai)
 {
         struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
-        int ret;
+        int ret = -EINVAL;
 
         switch (cmd) {
         case SNDRV_PCM_TRIGGER_START:
diff --git a/sound/soc/samsung/s3c24xx-i2s.c b/sound/soc/samsung/s3c24xx-i2s.c
index 326d3c3804e3..5bf723689692 100644
--- a/sound/soc/samsung/s3c24xx-i2s.c
+++ b/sound/soc/samsung/s3c24xx-i2s.c
@@ -461,8 +461,8 @@ static int s3c24xx_iis_dev_probe(struct platform_device *pdev)
                 return -ENOENT;
         }
         s3c24xx_i2s.regs = devm_ioremap_resource(&pdev->dev, res);
-        if (s3c24xx_i2s.regs == NULL)
-                return -ENXIO;
+        if (IS_ERR(s3c24xx_i2s.regs))
+                return PTR_ERR(s3c24xx_i2s.regs);
 
         s3c24xx_i2s_pcm_stereo_out.dma_addr = res->start + S3C2410_IISFIFO;
         s3c24xx_i2s_pcm_stereo_in.dma_addr = res->start + S3C2410_IISFIFO;
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index ac3756f6af60..144308f15fb3 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -156,6 +156,7 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
                                                   (void *)id);
         }
         if (IS_ERR_OR_NULL(dmaen->chan)) {
+                dmaen->chan = NULL;
                 dev_err(dev, "can't get dma channel\n");
                 goto rsnd_dma_channel_err;
         }
diff --git a/sound/synth/emux/emux_oss.c b/sound/synth/emux/emux_oss.c
index ab37add269ae..82e350e9501c 100644
--- a/sound/synth/emux/emux_oss.c
+++ b/sound/synth/emux/emux_oss.c
@@ -118,12 +118,8 @@ snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
         if (snd_BUG_ON(!arg || !emu))
                 return -ENXIO;
 
-        mutex_lock(&emu->register_mutex);
-
-        if (!snd_emux_inc_count(emu)) {
-                mutex_unlock(&emu->register_mutex);
+        if (!snd_emux_inc_count(emu))
                 return -EFAULT;
-        }
 
         memset(&callback, 0, sizeof(callback));
         callback.owner = THIS_MODULE;
@@ -135,7 +131,6 @@ snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
         if (p == NULL) {
                 snd_printk(KERN_ERR "can't create port\n");
                 snd_emux_dec_count(emu);
-                mutex_unlock(&emu->register_mutex);
                 return -ENOMEM;
         }
 
@@ -148,8 +143,6 @@ snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
         reset_port_mode(p, arg->seq_mode);
 
         snd_emux_reset_port(p);
-
-        mutex_unlock(&emu->register_mutex);
         return 0;
 }
 
@@ -195,13 +188,11 @@ snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg)
         if (snd_BUG_ON(!emu))
                 return -ENXIO;
 
-        mutex_lock(&emu->register_mutex);
         snd_emux_sounds_off_all(p);
         snd_soundfont_close_check(emu->sflist, SF_CLIENT_NO(p->chset.port));
         snd_seq_event_port_detach(p->chset.client, p->chset.port);
         snd_emux_dec_count(emu);
 
-        mutex_unlock(&emu->register_mutex);
         return 0;
 }
 
diff --git a/sound/synth/emux/emux_seq.c b/sound/synth/emux/emux_seq.c
index 7778b8e19782..a0209204ae48 100644
--- a/sound/synth/emux/emux_seq.c
+++ b/sound/synth/emux/emux_seq.c
@@ -124,12 +124,10 @@ snd_emux_detach_seq(struct snd_emux *emu)
         if (emu->voices)
                 snd_emux_terminate_all(emu);
                 
-        mutex_lock(&emu->register_mutex);
         if (emu->client >= 0) {
                 snd_seq_delete_kernel_client(emu->client);
                 emu->client = -1;
         }
-        mutex_unlock(&emu->register_mutex);
 }
 
 
@@ -269,8 +267,8 @@ snd_emux_event_input(struct snd_seq_event *ev, int direct, void *private_data,
 /*
  * increment usage count
  */
-int
-snd_emux_inc_count(struct snd_emux *emu)
+static int
+__snd_emux_inc_count(struct snd_emux *emu)
 {
         emu->used++;
         if (!try_module_get(emu->ops.owner))
@@ -284,12 +282,21 @@ snd_emux_inc_count(struct snd_emux *emu)
         return 1;
 }
 
+int snd_emux_inc_count(struct snd_emux *emu)
+{
+        int ret;
+
+        mutex_lock(&emu->register_mutex);
+        ret = __snd_emux_inc_count(emu);
+        mutex_unlock(&emu->register_mutex);
+        return ret;
+}
 
 /*
  * decrease usage count
  */
-void
-snd_emux_dec_count(struct snd_emux *emu)
+static void
+__snd_emux_dec_count(struct snd_emux *emu)
 {
         module_put(emu->card->module);
         emu->used--;
@@ -298,6 +305,12 @@ snd_emux_dec_count(struct snd_emux *emu)
         module_put(emu->ops.owner);
 }
 
+void snd_emux_dec_count(struct snd_emux *emu)
+{
+        mutex_lock(&emu->register_mutex);
+        __snd_emux_dec_count(emu);
+        mutex_unlock(&emu->register_mutex);
+}
 
 /*
  * Routine that is called upon a first use of a particular port
@@ -317,7 +330,7 @@ snd_emux_use(void *private_data, struct snd_seq_port_subscribe *info)
 
         mutex_lock(&emu->register_mutex);
         snd_emux_init_port(p);
-        snd_emux_inc_count(emu);
+        __snd_emux_inc_count(emu);
         mutex_unlock(&emu->register_mutex);
         return 0;
 }
@@ -340,7 +353,7 @@ snd_emux_unuse(void *private_data, struct snd_seq_port_subscribe *info)
 
         mutex_lock(&emu->register_mutex);
         snd_emux_sounds_off_all(p);
-        snd_emux_dec_count(emu);
+        __snd_emux_dec_count(emu);
         mutex_unlock(&emu->register_mutex);
         return 0;
 }
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index d8fe29fc19a4..8bd960658463 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -16,7 +16,7 @@ MAKEFLAGS += --no-print-directory
 LIBFILE = $(OUTPUT)libapi.a
 
 CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
-CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2 -fPIC
+CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
 
 RM = rm -f
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index e0917c0f5d9f..29f94f6f0d9e 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3865,7 +3865,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
                         } else if (el_size == 4) {
                                 trace_seq_printf(s, "%u", *(uint32_t *)num);
                         } else if (el_size == 8) {
-                                trace_seq_printf(s, "%lu", *(uint64_t *)num);
+                                trace_seq_printf(s, "%"PRIu64, *(uint64_t *)num);
                         } else {
                                 trace_seq_printf(s, "BAD SIZE:%d 0x%x",
                                                  el_size, *(uint8_t *)num);
diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c
index bedff6b5b3cf..ad0d9b5342fb 100644
--- a/tools/perf/bench/futex-requeue.c
+++ b/tools/perf/bench/futex-requeue.c
@@ -132,6 +132,9 @@ int bench_futex_requeue(int argc, const char **argv,
         if (!fshared)
                 futex_flag = FUTEX_PRIVATE_FLAG;
 
+        if (nrequeue > nthreads)
+                nrequeue = nthreads;
+
         printf("Run summary [PID %d]: Requeuing %d threads (from [%s] %p to %p), "
                "%d at a time.\n\n",  getpid(), nthreads,
                fshared ? "shared":"private", &futex1, &futex2, nrequeue);
@@ -161,20 +164,18 @@ int bench_futex_requeue(int argc, const char **argv,
 
                 /* Ok, all threads are patiently blocked, start requeueing */
                 gettimeofday(&start, NULL);
-                for (nrequeued = 0; nrequeued < nthreads; nrequeued += nrequeue) {
+                while (nrequeued < nthreads) {
                         /*
                          * Do not wakeup any tasks blocked on futex1, allowing
                          * us to really measure futex_wait functionality.
                          */
-                        futex_cmp_requeue(&futex1, 0, &futex2, 0,
-                                          nrequeue, futex_flag);
+                        nrequeued += futex_cmp_requeue(&futex1, 0, &futex2, 0,
+                                                       nrequeue, futex_flag);
                 }
+
                 gettimeofday(&end, NULL);
                 timersub(&end, &start, &runtime);
 
-                if (nrequeued > nthreads)
-                        nrequeued = nthreads;
-
                 update_stats(&requeued_stats, nrequeued);
                 update_stats(&requeuetime_stats, runtime.tv_usec);
 
@@ -184,7 +185,7 @@ int bench_futex_requeue(int argc, const char **argv,
                 }
 
                 /* everybody should be blocked on futex2, wake'em up */
-                nrequeued = futex_wake(&futex2, nthreads, futex_flag);
+                nrequeued = futex_wake(&futex2, nrequeued, futex_flag);
                 if (nthreads != nrequeued)
                         warnx("couldn't wakeup all tasks (%d/%d)", nrequeued, nthreads);
 
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index ebfa163b80b5..ba5efa4710b5 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -180,7 +180,7 @@ static const struct option options[] = {
         OPT_INTEGER('H', "thp"          , &p0.thp,              "MADV_NOHUGEPAGE < 0 < MADV_HUGEPAGE"),
         OPT_BOOLEAN('c', "show_convergence", &p0.show_convergence, "show convergence details"),
         OPT_BOOLEAN('m', "measure_convergence", &p0.measure_convergence, "measure convergence latency"),
-        OPT_BOOLEAN('q', "quiet"        , &p0.show_quiet,       "bzero the initial allocations"),
+        OPT_BOOLEAN('q', "quiet"        , &p0.show_quiet,       "quiet mode"),
         OPT_BOOLEAN('S', "serialize-startup", &p0.serialize_startup,"serialize thread startup"),
 
         /* Special option string parsing callbacks: */
@@ -828,6 +828,9 @@ static int count_process_nodes(int process_nr)
                 td = g->threads + task_nr;
 
                 node = numa_node_of_cpu(td->curr_cpu);
+                if (node < 0) /* curr_cpu was likely still -1 */
+                        return 0;
+
                 node_present[node] = 1;
         }
 
@@ -882,6 +885,11 @@ static void calc_convergence_compression(int *strong)
         for (p = 0; p < g->p.nr_proc; p++) {
                 unsigned int nodes = count_process_nodes(p);
 
+                if (!nodes) {
+                        *strong = 0;
+                        return;
+                }
+
                 nodes_min = min(nodes, nodes_min);
                 nodes_max = max(nodes, nodes_max);
         }
@@ -1395,7 +1403,7 @@ static void print_res(const char *name, double val,
         if (!name)
                 name = "main,";
 
-        if (g->p.show_quiet)
+        if (!g->p.show_quiet)
                 printf(" %-30s %15.3f, %-15s %s\n", name, val, txt_unit, txt_short);
         else
                 printf(" %14.3f %s\n", val, txt_long);
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 63ea01349b6e..1634186d537c 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -319,7 +319,7 @@ static int page_stat_cmp(struct page_stat *a, struct page_stat *b)
         return 0;
 }
 
-static struct page_stat *search_page_alloc_stat(struct page_stat *stat, bool create)
+static struct page_stat *search_page_alloc_stat(struct page_stat *pstat, bool create)
 {
         struct rb_node **node = &page_alloc_tree.rb_node;
         struct rb_node *parent = NULL;
@@ -331,7 +331,7 @@ static struct page_stat *search_page_alloc_stat(struct page_stat *stat, bool cre
                 parent = *node;
                 data = rb_entry(*node, struct page_stat, node);
 
-                cmp = page_stat_cmp(data, stat);
+                cmp = page_stat_cmp(data, pstat);
                 if (cmp < 0)
                         node = &parent->rb_left;
                 else if (cmp > 0)
@@ -345,10 +345,10 @@ static struct page_stat *search_page_alloc_stat(struct page_stat *stat, bool cre
 
         data = zalloc(sizeof(*data));
         if (data != NULL) {
-                data->page = stat->page;
-                data->order = stat->order;
-                data->gfp_flags = stat->gfp_flags;
-                data->migrate_type = stat->migrate_type;
+                data->page = pstat->page;
+                data->order = pstat->order;
+                data->gfp_flags = pstat->gfp_flags;
+                data->migrate_type = pstat->migrate_type;
 
                 rb_link_node(&data->node, parent, node);
                 rb_insert_color(&data->node, &page_alloc_tree);
@@ -375,7 +375,7 @@ static int perf_evsel__process_page_alloc_event(struct perf_evsel *evsel,
         unsigned int migrate_type = perf_evsel__intval(evsel, sample,
                                                        "migratetype");
         u64 bytes = kmem_page_size << order;
-        struct page_stat *stat;
+        struct page_stat *pstat;
         struct page_stat this = {
                 .order = order,
                 .gfp_flags = gfp_flags,
@@ -401,21 +401,21 @@ static int perf_evsel__process_page_alloc_event(struct perf_evsel *evsel,
          * This is to find the current page (with correct gfp flags and
          * migrate type) at free event.
          */
-        stat = search_page(page, true);
-        if (stat == NULL)
+        pstat = search_page(page, true);
+        if (pstat == NULL)
                 return -ENOMEM;
 
-        stat->order = order;
-        stat->gfp_flags = gfp_flags;
-        stat->migrate_type = migrate_type;
+        pstat->order = order;
+        pstat->gfp_flags = gfp_flags;
+        pstat->migrate_type = migrate_type;
 
         this.page = page;
-        stat = search_page_alloc_stat(&this, true);
-        if (stat == NULL)
+        pstat = search_page_alloc_stat(&this, true);
+        if (pstat == NULL)
                 return -ENOMEM;
 
-        stat->nr_alloc++;
-        stat->alloc_bytes += bytes;
+        pstat->nr_alloc++;
+        pstat->alloc_bytes += bytes;
 
         order_stats[order][migrate_type]++;
 
@@ -428,7 +428,7 @@ static int perf_evsel__process_page_free_event(struct perf_evsel *evsel,
         u64 page;
         unsigned int order = perf_evsel__intval(evsel, sample, "order");
         u64 bytes = kmem_page_size << order;
-        struct page_stat *stat;
+        struct page_stat *pstat;
         struct page_stat this = {
                 .order = order,
         };
@@ -441,8 +441,8 @@ static int perf_evsel__process_page_free_event(struct perf_evsel *evsel,
         nr_page_frees++;
         total_page_free_bytes += bytes;
 
-        stat = search_page(page, false);
-        if (stat == NULL) {
+        pstat = search_page(page, false);
+        if (pstat == NULL) {
                 pr_debug2("missing free at page %"PRIx64" (order: %d)\n",
                           page, order);
 
@@ -453,18 +453,18 @@ static int perf_evsel__process_page_free_event(struct perf_evsel *evsel,
         }
 
         this.page = page;
-        this.gfp_flags = stat->gfp_flags;
-        this.migrate_type = stat->migrate_type;
+        this.gfp_flags = pstat->gfp_flags;
+        this.migrate_type = pstat->migrate_type;
 
-        rb_erase(&stat->node, &page_tree);
-        free(stat);
+        rb_erase(&pstat->node, &page_tree);
+        free(pstat);
 
-        stat = search_page_alloc_stat(&this, false);
-        if (stat == NULL)
+        pstat = search_page_alloc_stat(&this, false);
+        if (pstat == NULL)
                 return -ENOENT;
 
-        stat->nr_free++;
-        stat->free_bytes += bytes;
+        pstat->nr_free++;
+        pstat->free_bytes += bytes;
 
         return 0;
 }
@@ -640,9 +640,9 @@ static void print_page_summary(void)
                nr_page_frees, total_page_free_bytes / 1024);
         printf("\n");
 
-        printf("%-30s: %'16lu   [ %'16"PRIu64" KB ]\n", "Total alloc+freed requests",
+        printf("%-30s: %'16"PRIu64"   [ %'16"PRIu64" KB ]\n", "Total alloc+freed requests",
                nr_alloc_freed, (total_alloc_freed_bytes) / 1024);
-        printf("%-30s: %'16lu   [ %'16"PRIu64" KB ]\n", "Total alloc-only requests",
+        printf("%-30s: %'16"PRIu64"   [ %'16"PRIu64" KB ]\n", "Total alloc-only requests",
                nr_page_allocs - nr_alloc_freed,
                (total_page_alloc_bytes - total_alloc_freed_bytes) / 1024);
         printf("%-30s: %'16lu   [ %'16"PRIu64" KB ]\n", "Total free-only requests",
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 476cdf7afcca..b63aeda719be 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -329,7 +329,7 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
                 fprintf(stdout, "\n\n");
         }
 
-        if (sort_order == default_sort_order &&
+        if (sort_order == NULL &&
             parent_pattern == default_parent_pattern) {
                 fprintf(stdout, "#\n# (%s)\n#\n", help);
 
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 1cb3436276d1..6a4d5d41c671 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -733,7 +733,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
 "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n"
 "Check /proc/sys/kernel/kptr_restrict.\n\n"
 "Kernel%s samples will not be resolved.\n",
-                          !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ?
+                          al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ?
                           " modules" : "");
                 if (use_browser <= 0)
                         sleep(5);
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index e124741be187..e122970361f2 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2241,10 +2241,11 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
         if (err < 0)
                 goto out_error_mmap;
 
+        if (!target__none(&trace->opts.target))
+                perf_evlist__enable(evlist);
+
         if (forks)
                 perf_evlist__start_workload(evlist);
-        else
-                perf_evlist__enable(evlist);
 
         trace->multiple_threads = evlist->threads->map[0] == -1 ||
                                   evlist->threads->nr > 1 ||
@@ -2272,6 +2273,11 @@ next_event:
 
                         if (interrupted)
                                 goto out_disable;
+
+                        if (done && !draining) {
+                                perf_evlist__disable(evlist);
+                                draining = true;
+                        }
                 }
         }
 
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index d8bb616ff57c..d05b77cf35f7 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1084,6 +1084,8 @@ static int parse_perf_probe_point(char *arg, struct perf_probe_event *pev)
          *
          * TODO:Group name support
          */
+        if (!arg)
+                return -EINVAL;
 
         ptr = strpbrk(arg, ";=@+%");
         if (ptr && *ptr == '=') {       /* Event name */
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index b5bf9d5efeaf..2a76e14db732 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -578,10 +578,12 @@ static int find_variable(Dwarf_Die *sc_die, struct probe_finder *pf)
         /* Search child die for local variables and parameters. */
         if (!die_find_variable_at(sc_die, pf->pvar->var, pf->addr, &vr_die)) {
                 /* Search again in global variables */
-                if (!die_find_variable_at(&pf->cu_die, pf->pvar->var, 0, &vr_die))
+                if (!die_find_variable_at(&pf->cu_die, pf->pvar->var,
+                                                0, &vr_die)) {
                         pr_warning("Failed to find '%s' in this function.\n",
                                    pf->pvar->var);
                         ret = -ENOENT;
+                }
         }
         if (ret >= 0)
                 ret = convert_variable(&vr_die, pf);
diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile
index 5a161175bbd4..a9099d9f8f39 100644
--- a/tools/testing/selftests/powerpc/pmu/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/Makefile
@@ -26,7 +26,7 @@ override define EMIT_TESTS
         $(MAKE) -s -C ebb emit_tests
 endef
 
-DEFAULT_INSTALL := $(INSTALL_RULE)
+DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
 override define INSTALL_RULE
         $(DEFAULT_INSTALL_RULE)
         $(MAKE) -C ebb install
diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
index 1b616fa79e93..6bff955e1d55 100644
--- a/tools/testing/selftests/powerpc/tm/Makefile
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -1,4 +1,4 @@
-TEST_PROGS := tm-resched-dscr tm-syscall
+TEST_PROGS := tm-resched-dscr
 
 all: $(TEST_PROGS)