Merge tag 'v4.19-rc3' into next/drivers

Linux 4.19-rc3

545 files changed, 5260 insertions, 3485 deletions

diff --git a/Documentation/ABI/stable/sysfs-bus-xen-backend b/Documentation/ABI/stable/sysfs-bus-xen-backend
index 3d5951c8bf5f..e8b60bd766f7 100644
--- a/Documentation/ABI/stable/sysfs-bus-xen-backend
+++ b/Documentation/ABI/stable/sysfs-bus-xen-backend
@@ -73,3 +73,12 @@ KernelVersion:	3.0
 Contact:        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
 Description:
                 Number of sectors written by the frontend.
+
+What:           /sys/bus/xen-backend/devices/*/state
+Date:           August 2018
+KernelVersion:  4.19
+Contact:        Joe Jin <joe.jin@oracle.com>
+Description:
+                The state of the device. One of: 'Unknown',
+                'Initialising', 'Initialised', 'Connected', 'Closing',
+                'Closed', 'Reconfiguring', 'Reconfigured'.
diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkback b/Documentation/ABI/testing/sysfs-driver-xen-blkback
index 8bb43b66eb55..4e7babb3ba1f 100644
--- a/Documentation/ABI/testing/sysfs-driver-xen-blkback
+++ b/Documentation/ABI/testing/sysfs-driver-xen-blkback
@@ -15,3 +15,13 @@ Description:
                 blkback. If the frontend tries to use more than
                 max_persistent_grants, the LRU kicks in and starts
                 removing 5% of max_persistent_grants every 100ms.
+
+What:           /sys/module/xen_blkback/parameters/persistent_grant_unused_seconds
+Date:           August 2018
+KernelVersion:  4.19
+Contact:        Roger Pau Monné <roger.pau@citrix.com>
+Description:
+                How long a persistent grant is allowed to remain
+                allocated without being in use. The time is in
+                seconds, 0 means indefinitely long.
+                The default is 60 seconds.
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 9871e649ffef..64a3bf54b974 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3523,6 +3523,12 @@
         ramdisk_size=   [RAM] Sizes of RAM disks in kilobytes
                         See Documentation/blockdev/ramdisk.txt.
 
+        random.trust_cpu={on,off}
+                        [KNL] Enable or disable trusting the use of the
+                        CPU's random number generator (if available) to
+                        fully seed the kernel's CRNG. Default is controlled
+                        by CONFIG_RANDOM_TRUST_CPU.
+
         ras=option[,option,...] [KNL] RAS-specific options
 
                 cec_disable     [X86]
diff --git a/Documentation/arm64/sve.txt b/Documentation/arm64/sve.txt
index f128f736b4a5..7169a0ec41d8 100644
--- a/Documentation/arm64/sve.txt
+++ b/Documentation/arm64/sve.txt
@@ -200,7 +200,7 @@ prctl(PR_SVE_SET_VL, unsigned long arg)
       thread.
 
     * Changing the vector length causes all of P0..P15, FFR and all bits of
-      Z0..V31 except for Z0 bits [127:0] .. Z31 bits [127:0] to become
+      Z0..Z31 except for Z0 bits [127:0] .. Z31 bits [127:0] to become
       unspecified.  Calling PR_SVE_SET_VL with vl equal to the thread's current
       vector length, or calling PR_SVE_SET_VL with the PR_SVE_SET_VL_ONEXEC
       flag, does not constitute a change to the vector length for this purpose.
@@ -500,7 +500,7 @@ References
 [2] arch/arm64/include/uapi/asm/ptrace.h
     AArch64 Linux ptrace ABI definitions
 
-[3] linux/Documentation/arm64/cpu-feature-registers.txt
+[3] Documentation/arm64/cpu-feature-registers.txt
 
 [4] ARM IHI0055C
     http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055c/IHI0055C_beta_aapcs64.pdf
diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt
index 00e4365d7206..091c8dfd3229 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt
@@ -3,7 +3,6 @@
 Required properties:
 - compatible :
   - "fsl,imx7ulp-lpi2c" for LPI2C compatible with the one integrated on i.MX7ULP soc
-  - "fsl,imx8dv-lpi2c" for LPI2C compatible with the one integrated on i.MX8DV soc
 - reg : address and length of the lpi2c master registers
 - interrupts : lpi2c interrupt
 - clocks : lpi2c clock specifier
@@ -11,7 +10,7 @@ Required properties:
 Examples:
 
 lpi2c7: lpi2c7@40a50000 {
-        compatible = "fsl,imx8dv-lpi2c";
+        compatible = "fsl,imx7ulp-lpi2c";
         reg = <0x40A50000 0x10000>;
         interrupt-parent = <&intc>;
         interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/Documentation/devicetree/bindings/interrupt-controller/riscv,cpu-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/riscv,cpu-intc.txt
index b0a8af51c388..265b223cd978 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/riscv,cpu-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/riscv,cpu-intc.txt
@@ -11,7 +11,7 @@ The RISC-V supervisor ISA manual specifies three interrupt sources that are
 attached to every HLIC: software interrupts, the timer interrupt, and external
 interrupts.  Software interrupts are used to send IPIs between cores.  The
 timer interrupt comes from an architecturally mandated real-time timer that is
-controller via Supervisor Binary Interface (SBI) calls and CSR reads.  External
+controlled via Supervisor Binary Interface (SBI) calls and CSR reads.  External
 interrupts connect all other device interrupts to the HLIC, which are routed
 via the platform-level interrupt controller (PLIC).
 
@@ -25,7 +25,15 @@ in the system.
 
 Required properties:
 - compatible : "riscv,cpu-intc"
-- #interrupt-cells : should be <1>
+- #interrupt-cells : should be <1>.  The interrupt sources are defined by the
+  RISC-V supervisor ISA manual, with only the following three interrupts being
+  defined for supervisor mode:
+    - Source 1 is the supervisor software interrupt, which can be sent by an SBI
+      call and is reserved for use by software.
+    - Source 5 is the supervisor timer interrupt, which can be configured by
+      SBI calls and implements a one-shot timer.
+    - Source 9 is the supervisor external interrupt, which chains to all other
+      device interrupts.
 - interrupt-controller : Identifies the node as an interrupt controller
 
 Furthermore, this interrupt-controller MUST be embedded inside the cpu
@@ -38,7 +46,7 @@ An example device tree entry for a HLIC is show below.
                 ...
                 cpu1-intc: interrupt-controller {
                         #interrupt-cells = <1>;
-                        compatible = "riscv,cpu-intc", "sifive,fu540-c000-cpu-intc";
+                        compatible = "sifive,fu540-c000-cpu-intc", "riscv,cpu-intc";
                         interrupt-controller;
                 };
         };
diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt
index 41089369f891..b3acebe08eb0 100644
--- a/Documentation/devicetree/bindings/net/cpsw.txt
+++ b/Documentation/devicetree/bindings/net/cpsw.txt
@@ -19,6 +19,10 @@ Required properties:
 - slaves                : Specifies number for slaves
 - active_slave          : Specifies the slave to use for time stamping,
                           ethtool and SIOCGMIIPHY
+- cpsw-phy-sel          : Specifies the phandle to the CPSW phy mode selection
+                          device. See also cpsw-phy-sel.txt for it's binding.
+                          Note that in legacy cases cpsw-phy-sel may be
+                          a child device instead of a phandle.
 
 Optional properties:
 - ti,hwmods             : Must be "cpgmac0"
@@ -75,6 +79,7 @@ Examples:
                 cpts_clock_mult = <0x80000000>;
                 cpts_clock_shift = <29>;
                 syscon = <&cm>;
+                cpsw-phy-sel = <&phy_sel>;
                 cpsw_emac0: slave@0 {
                         phy_id = <&davinci_mdio>, <0>;
                         phy-mode = "rgmii-txid";
@@ -103,6 +108,7 @@ Examples:
                 cpts_clock_mult = <0x80000000>;
                 cpts_clock_shift = <29>;
                 syscon = <&cm>;
+                cpsw-phy-sel = <&phy_sel>;
                 cpsw_emac0: slave@0 {
                         phy_id = <&davinci_mdio>, <0>;
                         phy-mode = "rgmii-txid";
diff --git a/Documentation/devicetree/bindings/net/sh_eth.txt b/Documentation/devicetree/bindings/net/sh_eth.txt
index 76db9f13ad96..abc36274227c 100644
--- a/Documentation/devicetree/bindings/net/sh_eth.txt
+++ b/Documentation/devicetree/bindings/net/sh_eth.txt
@@ -16,6 +16,7 @@ Required properties:
               "renesas,ether-r8a7794"  if the device is a part of R8A7794 SoC.
               "renesas,gether-r8a77980" if the device is a part of R8A77980 SoC.
               "renesas,ether-r7s72100" if the device is a part of R7S72100 SoC.
+              "renesas,ether-r7s9210" if the device is a part of R7S9210 SoC.
               "renesas,rcar-gen1-ether" for a generic R-Car Gen1 device.
               "renesas,rcar-gen2-ether" for a generic R-Car Gen2 or RZ/G1
                                         device.
diff --git a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
index 5d47a262474c..9407212a85a8 100644
--- a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
@@ -7,6 +7,7 @@ Required properties:
                Examples with soctypes are:
                  - "renesas,r8a7743-wdt" (RZ/G1M)
                  - "renesas,r8a7745-wdt" (RZ/G1E)
+                 - "renesas,r8a774a1-wdt" (RZ/G2M)
                  - "renesas,r8a7790-wdt" (R-Car H2)
                  - "renesas,r8a7791-wdt" (R-Car M2-W)
                  - "renesas,r8a7792-wdt" (R-Car V2H)
@@ -21,8 +22,8 @@ Required properties:
                  - "renesas,r7s72100-wdt" (RZ/A1)
                 The generic compatible string must be:
                  - "renesas,rza-wdt" for RZ/A
-                 - "renesas,rcar-gen2-wdt" for R-Car Gen2 and RZ/G
-                 - "renesas,rcar-gen3-wdt" for R-Car Gen3
+                 - "renesas,rcar-gen2-wdt" for R-Car Gen2 and RZ/G1
+                 - "renesas,rcar-gen3-wdt" for R-Car Gen3 and RZ/G2
 
 - reg : Should contain WDT registers location and length
 - clocks : the clock feeding the watchdog timer.
diff --git a/Documentation/hwmon/ina2xx b/Documentation/hwmon/ina2xx
index 72d16f08e431..b8df81f6d6bc 100644
--- a/Documentation/hwmon/ina2xx
+++ b/Documentation/hwmon/ina2xx
@@ -32,7 +32,7 @@ Supported chips:
     Datasheet: Publicly available at the Texas Instruments website
                http://www.ti.com/
 
-Author: Lothar Felten <l-felten@ti.com>
+Author: Lothar Felten <lothar.felten@gmail.com>
 
 Description
 -----------
diff --git a/Documentation/i2c/DMA-considerations b/Documentation/i2c/DMA-considerations
index 966610aa4620..203002054120 100644
--- a/Documentation/i2c/DMA-considerations
+++ b/Documentation/i2c/DMA-considerations
@@ -50,10 +50,14 @@ bounce buffer. But you don't need to care about that detail, just use the
 returned buffer. If NULL is returned, the threshold was not met or a bounce
 buffer could not be allocated. Fall back to PIO in that case.
 
-In any case, a buffer obtained from above needs to be released. It ensures data
-is copied back to the message and a potentially used bounce buffer is freed::
+In any case, a buffer obtained from above needs to be released. Another helper
+function ensures a potentially used bounce buffer is freed::
 
-        i2c_release_dma_safe_msg_buf(msg, dma_buf);
+        i2c_put_dma_safe_msg_buf(dma_buf, msg, xferred);
+
+The last argument 'xferred' controls if the buffer is synced back to the
+message or not. No syncing is needed in cases setting up DMA had an error and
+there was no data transferred.
 
 The bounce buffer handling from the core is generic and simple. It will always
 allocate a new bounce buffer. If you want a more sophisticated handling (e.g.
diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index 61f918b10a0c..d1bf143b446f 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -86,7 +86,7 @@ pkg-config
 
 The build system, as of 4.18, requires pkg-config to check for installed
 kconfig tools and to determine flags settings for use in
-'make {menu,n,g,x}config'.  Previously pkg-config was being used but not
+'make {g,x}config'.  Previously pkg-config was being used but not
 verified or documented.
 
 Flex
diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt
index 25a4b4cf04a6..92999d4e0cb8 100644
--- a/Documentation/scsi/scsi-parameters.txt
+++ b/Documentation/scsi/scsi-parameters.txt
@@ -97,6 +97,11 @@ parameters may be changed at runtime by the command
                         allowing boot to proceed.  none ignores them, expecting
                         user space to do the scan.
 
+        scsi_mod.use_blk_mq=
+                        [SCSI] use blk-mq I/O path by default
+                        See SCSI_MQ_DEFAULT in drivers/scsi/Kconfig.
+                        Format: <y/n>
+
         sim710=         [SCSI,HW]
                         See header of drivers/scsi/sim710.c.
 
diff --git a/MAINTAINERS b/MAINTAINERS
index a5b256b25905..d870cb57c887 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2311,6 +2311,7 @@ F:	drivers/clocksource/cadence_ttc_timer.c
 F:      drivers/i2c/busses/i2c-cadence.c
 F:      drivers/mmc/host/sdhci-of-arasan.c
 F:      drivers/edac/synopsys_edac.c
+F:      drivers/i2c/busses/i2c-xiic.c
 
 ARM64 PORT (AARCH64 ARCHITECTURE)
 M:      Catalin Marinas <catalin.marinas@arm.com>
@@ -8255,9 +8256,9 @@ F:	drivers/ata/pata_arasan_cf.c
 
 LIBATA PATA DRIVERS
 M:      Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
-M:      Jens Axboe <kernel.dk>
+M:      Jens Axboe <axboe@kernel.dk>
 L:      linux-ide@vger.kernel.org
-T:      git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git
 S:      Maintained
 F:      drivers/ata/pata_*.c
 F:      drivers/ata/ata_generic.c
@@ -8275,7 +8276,7 @@ LIBATA SATA AHCI PLATFORM devices support
 M:      Hans de Goede <hdegoede@redhat.com>
 M:      Jens Axboe <axboe@kernel.dk>
 L:      linux-ide@vger.kernel.org
-T:      git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git
 S:      Maintained
 F:      drivers/ata/ahci_platform.c
 F:      drivers/ata/libahci_platform.c
@@ -8291,7 +8292,7 @@ F:	drivers/ata/sata_promise.*
 LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)
 M:      Jens Axboe <axboe@kernel.dk>
 L:      linux-ide@vger.kernel.org
-T:      git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git
 S:      Maintained
 F:      drivers/ata/
 F:      include/linux/ata.h
diff --git a/Makefile b/Makefile
index 2b458801ba74..4d5c883a98e5 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 VERSION = 4
 PATCHLEVEL = 19
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc3
 NAME = Merciless Moray
 
 # *DOCUMENTATION*
@@ -807,6 +807,9 @@ KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
 # disable pointer signed / unsigned warnings in gcc 4.0
 KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
 
+# disable stringop warnings in gcc 8+
+KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
+
 # disable invalid "can't wrap" optimizations for signed / pointers
 KBUILD_CFLAGS   += $(call cc-option,-fno-strict-overflow)
 
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 6d5eb8267e42..b4441b0764d7 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -9,6 +9,7 @@
 config ARC
         def_bool y
         select ARC_TIMERS
+        select ARCH_HAS_PTE_SPECIAL
         select ARCH_HAS_SYNC_DMA_FOR_CPU
         select ARCH_HAS_SYNC_DMA_FOR_DEVICE
         select ARCH_HAS_SG_CHAIN
@@ -28,8 +29,12 @@ config ARC
         select GENERIC_SMP_IDLE_THREAD
         select HAVE_ARCH_KGDB
         select HAVE_ARCH_TRACEHOOK
+        select HAVE_DEBUG_STACKOVERFLOW
         select HAVE_FUTEX_CMPXCHG if FUTEX
+        select HAVE_GENERIC_DMA_COHERENT
         select HAVE_IOREMAP_PROT
+        select HAVE_KERNEL_GZIP
+        select HAVE_KERNEL_LZMA
         select HAVE_KPROBES
         select HAVE_KRETPROBES
         select HAVE_MEMBLOCK
@@ -44,11 +49,6 @@ config ARC
         select OF_EARLY_FLATTREE
         select OF_RESERVED_MEM
         select PERF_USE_VMALLOC if ARC_CACHE_VIPT_ALIASING
-        select HAVE_DEBUG_STACKOVERFLOW
-        select HAVE_GENERIC_DMA_COHERENT
-        select HAVE_KERNEL_GZIP
-        select HAVE_KERNEL_LZMA
-        select ARCH_HAS_PTE_SPECIAL
 
 config ARCH_HAS_CACHE_LINE_SIZE
         def_bool y
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index fb026196aaab..99cce77ab98f 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -43,10 +43,7 @@ ifdef CONFIG_ARC_CURR_IN_REG
 LINUXINCLUDE    +=  -include ${src}/arch/arc/include/asm/current.h
 endif
 
-upto_gcc44    :=  $(call cc-ifversion, -le, 0404, y)
-atleast_gcc44 :=  $(call cc-ifversion, -ge, 0404, y)
-
-cflags-$(atleast_gcc44)                 += -fsection-anchors
+cflags-y                                += -fsection-anchors
 
 cflags-$(CONFIG_ARC_HAS_LLSC)           += -mlock
 cflags-$(CONFIG_ARC_HAS_SWAPE)          += -mswape
@@ -82,11 +79,6 @@ cflags-$(disable_small_data)		+= -mno-sdata -fcall-used-gp
 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -mbig-endian
 ldflags-$(CONFIG_CPU_BIG_ENDIAN)        += -EB
 
-# STAR 9000518362: (fixed with binutils shipping with gcc 4.8)
-# arc-linux-uclibc-ld (buildroot) or arceb-elf32-ld (EZChip) don't accept
-# --build-id w/o "-marclinux". Default arc-elf32-ld is OK
-ldflags-$(upto_gcc44)                   += -marclinux
-
 LIBGCC  := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
 
 # Modules with short calls might break for calls into builtin-kernel
diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi
index dc91c663bcc0..d75d65ddf8e3 100644
--- a/arch/arc/boot/dts/axc003.dtsi
+++ b/arch/arc/boot/dts/axc003.dtsi
@@ -94,6 +94,32 @@
         };
 
         /*
+         * Mark DMA peripherals connected via IOC port as dma-coherent. We do
+         * it via overlay because peripherals defined in axs10x_mb.dtsi are
+         * used for both AXS101 and AXS103 boards and only AXS103 has IOC (so
+         * only AXS103 board has HW-coherent DMA peripherals)
+         * We don't need to mark pgu@17000 as dma-coherent because it uses
+         * external DMA buffer located outside of IOC aperture.
+         */
+        axs10x_mb {
+                ethernet@0x18000 {
+                        dma-coherent;
+                };
+
+                ehci@0x40000 {
+                        dma-coherent;
+                };
+
+                ohci@0x60000 {
+                        dma-coherent;
+                };
+
+                mmc@0x15000 {
+                        dma-coherent;
+                };
+        };
+
+        /*
          * The DW APB ICTL intc on MB is connected to CPU intc via a
          * DT "invisible" DW APB GPIO block, configured to simply pass thru
          * interrupts - setup accordinly in platform init (plat-axs10x/ax10x.c)
diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi
index 69ff4895f2ba..a05bb737ea63 100644
--- a/arch/arc/boot/dts/axc003_idu.dtsi
+++ b/arch/arc/boot/dts/axc003_idu.dtsi
@@ -101,6 +101,32 @@
         };
 
         /*
+         * Mark DMA peripherals connected via IOC port as dma-coherent. We do
+         * it via overlay because peripherals defined in axs10x_mb.dtsi are
+         * used for both AXS101 and AXS103 boards and only AXS103 has IOC (so
+         * only AXS103 board has HW-coherent DMA peripherals)
+         * We don't need to mark pgu@17000 as dma-coherent because it uses
+         * external DMA buffer located outside of IOC aperture.
+         */
+        axs10x_mb {
+                ethernet@0x18000 {
+                        dma-coherent;
+                };
+
+                ehci@0x40000 {
+                        dma-coherent;
+                };
+
+                ohci@0x60000 {
+                        dma-coherent;
+                };
+
+                mmc@0x15000 {
+                        dma-coherent;
+                };
+        };
+
+        /*
          * This INTC is actually connected to DW APB GPIO
          * which acts as a wire between MB INTC and CPU INTC.
          * GPIO INTC is configured in platform init code
diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi
index 47b74fbc403c..37bafd44e36d 100644
--- a/arch/arc/boot/dts/axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/axs10x_mb.dtsi
@@ -9,6 +9,10 @@
  */
 
 / {
+        aliases {
+                ethernet = &gmac;
+        };
+
         axs10x_mb {
                 compatible = "simple-bus";
                 #address-cells = <1>;
@@ -68,7 +72,7 @@
                         };
                 };
 
-                ethernet@0x18000 {
+                gmac: ethernet@0x18000 {
                         #interrupt-cells = <1>;
                         compatible = "snps,dwmac";
                         reg = < 0x18000 0x2000 >;
@@ -81,6 +85,7 @@
                         max-speed = <100>;
                         resets = <&creg_rst 5>;
                         reset-names = "stmmaceth";
+                        mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */
                 };
 
                 ehci@0x40000 {
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index 006aa3de5348..ef149f59929a 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -25,6 +25,10 @@
                 bootargs = "earlycon=uart8250,mmio32,0xf0005000,115200n8 console=ttyS0,115200n8 debug print-fatal-signals=1";
         };
 
+        aliases {
+                ethernet = &gmac;
+        };
+
         cpus {
                 #address-cells = <1>;
                 #size-cells = <0>;
@@ -163,7 +167,7 @@
                         #clock-cells = <0>;
                 };
 
-                ethernet@8000 {
+                gmac: ethernet@8000 {
                         #interrupt-cells = <1>;
                         compatible = "snps,dwmac";
                         reg = <0x8000 0x2000>;
@@ -176,6 +180,8 @@
                         phy-handle = <&phy0>;
                         resets = <&cgu_rst HSDK_ETH_RESET>;
                         reset-names = "stmmaceth";
+                        mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */
+                        dma-coherent;
 
                         mdio {
                                 #address-cells = <1>;
@@ -194,12 +200,14 @@
                         compatible = "snps,hsdk-v1.0-ohci", "generic-ohci";
                         reg = <0x60000 0x100>;
                         interrupts = <15>;
+                        dma-coherent;
                 };
 
                 ehci@40000 {
                         compatible = "snps,hsdk-v1.0-ehci", "generic-ehci";
                         reg = <0x40000 0x100>;
                         interrupts = <15>;
+                        dma-coherent;
                 };
 
                 mmc@a000 {
@@ -212,6 +220,7 @@
                         clock-names = "biu", "ciu";
                         interrupts = <12>;
                         bus-width = <4>;
+                        dma-coherent;
                 };
         };
 
diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig
index a635ea972304..41bc08be6a3b 100644
--- a/arch/arc/configs/axs101_defconfig
+++ b/arch/arc/configs/axs101_defconfig
@@ -1,5 +1,3 @@
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
-# CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 # CONFIG_CROSS_MEMORY_ATTACH is not set
@@ -63,7 +61,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y
 CONFIG_MOUSE_SERIAL=y
 CONFIG_MOUSE_SYNAPTICS_USB=y
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_DW=y
diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig
index aa507e423075..1e1c4a8011b5 100644
--- a/arch/arc/configs/axs103_defconfig
+++ b/arch/arc/configs/axs103_defconfig
@@ -1,5 +1,3 @@
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
-# CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 # CONFIG_CROSS_MEMORY_ATTACH is not set
@@ -64,7 +62,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y
 CONFIG_MOUSE_SERIAL=y
 CONFIG_MOUSE_SYNAPTICS_USB=y
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_DW=y
diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig
index eba07f468654..6b0c0cfd5c30 100644
--- a/arch/arc/configs/axs103_smp_defconfig
+++ b/arch/arc/configs/axs103_smp_defconfig
@@ -1,5 +1,3 @@
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
-# CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 # CONFIG_CROSS_MEMORY_ATTACH is not set
@@ -65,7 +63,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y
 CONFIG_MOUSE_SERIAL=y
 CONFIG_MOUSE_SYNAPTICS_USB=y
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_DW=y
diff --git a/arch/arc/configs/haps_hs_defconfig b/arch/arc/configs/haps_hs_defconfig
index 098b19fbaa51..240dd2cd5148 100644
--- a/arch/arc/configs/haps_hs_defconfig
+++ b/arch/arc/configs/haps_hs_defconfig
@@ -1,4 +1,3 @@
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -57,7 +56,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y
 # CONFIG_SERIO_SERPORT is not set
 CONFIG_SERIO_ARC_PS2=y
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=1
diff --git a/arch/arc/configs/haps_hs_smp_defconfig b/arch/arc/configs/haps_hs_smp_defconfig
index 0104c404d897..14ae7e5acc7c 100644
--- a/arch/arc/configs/haps_hs_smp_defconfig
+++ b/arch/arc/configs/haps_hs_smp_defconfig
@@ -1,4 +1,3 @@
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -60,7 +59,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y
 # CONFIG_SERIO_SERPORT is not set
 CONFIG_SERIO_ARC_PS2=y
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=1
diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig
index 6491be0ddbc9..1dec2b4bc5e6 100644
--- a/arch/arc/configs/hsdk_defconfig
+++ b/arch/arc/configs/hsdk_defconfig
@@ -1,4 +1,3 @@
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 CONFIG_SYSVIPC=y
 # CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_NO_HZ_IDLE=y
diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig
index 7c9c706ae7f6..31ba224bbfb4 100644
--- a/arch/arc/configs/nps_defconfig
+++ b/arch/arc/configs/nps_defconfig
@@ -59,7 +59,6 @@ CONFIG_NETCONSOLE=y
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=1
diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig
index 99e05cf63fca..8e0b8b134cd9 100644
--- a/arch/arc/configs/nsim_700_defconfig
+++ b/arch/arc/configs/nsim_700_defconfig
@@ -1,5 +1,4 @@
 # CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -44,7 +43,6 @@ CONFIG_LXT_PHY=y
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_ARC=y
 CONFIG_SERIAL_ARC_CONSOLE=y
 # CONFIG_HW_RANDOM is not set
diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig
index 0dc4f9b737e7..739b90e5e893 100644
--- a/arch/arc/configs/nsim_hs_defconfig
+++ b/arch/arc/configs/nsim_hs_defconfig
@@ -1,5 +1,4 @@
 # CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -45,7 +44,6 @@ CONFIG_DEVTMPFS=y
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_ARC=y
 CONFIG_SERIAL_ARC_CONSOLE=y
 # CONFIG_HW_RANDOM is not set
diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig
index be3c30a15e54..b5895bdf3a93 100644
--- a/arch/arc/configs/nsim_hs_smp_defconfig
+++ b/arch/arc/configs/nsim_hs_smp_defconfig
@@ -1,5 +1,4 @@
 # CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
 # CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_HIGH_RES_TIMERS=y
@@ -44,7 +43,6 @@ CONFIG_DEVTMPFS=y
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_ARC=y
 CONFIG_SERIAL_ARC_CONSOLE=y
 # CONFIG_HW_RANDOM is not set
diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
index 3a74b9b21772..f14eeff7d308 100644
--- a/arch/arc/configs/nsimosci_defconfig
+++ b/arch/arc/configs/nsimosci_defconfig
@@ -1,5 +1,4 @@
 # CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 # CONFIG_CROSS_MEMORY_ATTACH is not set
@@ -48,7 +47,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y
 # CONFIG_SERIO_SERPORT is not set
 CONFIG_SERIO_ARC_PS2=y
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=1
diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig
index ea2834b4dc1d..025298a48305 100644
--- a/arch/arc/configs/nsimosci_hs_defconfig
+++ b/arch/arc/configs/nsimosci_hs_defconfig
@@ -1,5 +1,4 @@
 # CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 # CONFIG_CROSS_MEMORY_ATTACH is not set
@@ -47,7 +46,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y
 # CONFIG_SERIO_SERPORT is not set
 CONFIG_SERIO_ARC_PS2=y
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=1
diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig
index 80a5a1b4924b..df7b77b13b82 100644
--- a/arch/arc/configs/nsimosci_hs_smp_defconfig
+++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
@@ -1,4 +1,3 @@
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 # CONFIG_CROSS_MEMORY_ATTACH is not set
@@ -58,7 +57,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y
 # CONFIG_SERIO_SERPORT is not set
 CONFIG_SERIO_ARC_PS2=y
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=1
diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig
index 2cc87f909747..a7f65313f84a 100644
--- a/arch/arc/configs/tb10x_defconfig
+++ b/arch/arc/configs/tb10x_defconfig
@@ -57,7 +57,6 @@ CONFIG_STMMAC_ETH=y
 # CONFIG_SERIO is not set
 # CONFIG_VT is not set
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=1
diff --git a/arch/arc/configs/vdk_hs38_defconfig b/arch/arc/configs/vdk_hs38_defconfig
index f629493929ea..db47c3541f15 100644
--- a/arch/arc/configs/vdk_hs38_defconfig
+++ b/arch/arc/configs/vdk_hs38_defconfig
@@ -1,5 +1,4 @@
 # CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_IKCONFIG=y
@@ -53,7 +52,6 @@ CONFIG_NATIONAL_PHY=y
 CONFIG_MOUSE_PS2_TOUCHKIT=y
 CONFIG_SERIO_ARC_PS2=y
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_DW=y
diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig
index 21f0ca26a05d..a8ac5e917d9a 100644
--- a/arch/arc/configs/vdk_hs38_smp_defconfig
+++ b/arch/arc/configs/vdk_hs38_smp_defconfig
@@ -1,5 +1,4 @@
 # CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_IKCONFIG=y
diff --git a/arch/arc/include/asm/atomic.h b/arch/arc/include/asm/atomic.h
index 4e0072730241..158af079838d 100644
--- a/arch/arc/include/asm/atomic.h
+++ b/arch/arc/include/asm/atomic.h
@@ -84,7 +84,7 @@ static inline int atomic_fetch_##op(int i, atomic_t *v)			\
         "1:     llock   %[orig], [%[ctr]]               \n"             \
         "       " #asm_op " %[val], %[orig], %[i]       \n"             \
         "       scond   %[val], [%[ctr]]                \n"             \
-        "                                               \n"             \
+        "       bnz     1b                              \n"             \
         : [val] "=&r"   (val),                                          \
           [orig] "=&r" (orig)                                           \
         : [ctr] "r"     (&v->counter),                                  \
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..c946c0a83e76
--- /dev/null
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier:  GPL-2.0
+// (C) 2018 Synopsys, Inc. (www.synopsys.com)
+
+#ifndef ASM_ARC_DMA_MAPPING_H
+#define ASM_ARC_DMA_MAPPING_H
+
+#include <asm-generic/dma-mapping.h>
+
+void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
+                        const struct iommu_ops *iommu, bool coherent);
+#define arch_setup_dma_ops arch_setup_dma_ops
+
+#endif
diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
index 783b20354f8b..e8d9fb452346 100644
--- a/arch/arc/kernel/troubleshoot.c
+++ b/arch/arc/kernel/troubleshoot.c
@@ -83,9 +83,6 @@ done:
 static void show_faulting_vma(unsigned long address, char *buf)
 {
         struct vm_area_struct *vma;
-        struct inode *inode;
-        unsigned long ino = 0;
-        dev_t dev = 0;
         char *nm = buf;
         struct mm_struct *active_mm = current->active_mm;
 
@@ -99,12 +96,10 @@ static void show_faulting_vma(unsigned long address, char *buf)
          * if the container VMA is not found
          */
         if (vma && (vma->vm_start <= address)) {
-                struct file *file = vma->vm_file;
-                if (file) {
-                        nm = file_path(file, buf, PAGE_SIZE - 1);
-                        inode = file_inode(vma->vm_file);
-                        dev = inode->i_sb->s_dev;
-                        ino = inode->i_ino;
+                if (vma->vm_file) {
+                        nm = file_path(vma->vm_file, buf, PAGE_SIZE - 1);
+                        if (IS_ERR(nm))
+                                nm = "?";
                 }
                 pr_info("    @off 0x%lx in [%s]\n"
                         "    VMA: 0x%08lx to 0x%08lx\n",
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index 25c631942500..f2701c13a66b 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -65,7 +65,7 @@ char *arc_cache_mumbojumbo(int c, char *buf, int len)
 
         n += scnprintf(buf + n, len - n, "Peripherals\t: %#lx%s%s\n",
                        perip_base,
-                       IS_AVAIL3(ioc_exists, ioc_enable, ", IO-Coherency "));
+                       IS_AVAIL3(ioc_exists, ioc_enable, ", IO-Coherency (per-device) "));
 
         return buf;
 }
@@ -897,15 +897,6 @@ static void __dma_cache_wback_slc(phys_addr_t start, unsigned long sz)
 }
 
 /*
- * DMA ops for systems with IOC
- * IOC hardware snoops all DMA traffic keeping the caches consistent with
- * memory - eliding need for any explicit cache maintenance of DMA buffers
- */
-static void __dma_cache_wback_inv_ioc(phys_addr_t start, unsigned long sz) {}
-static void __dma_cache_inv_ioc(phys_addr_t start, unsigned long sz) {}
-static void __dma_cache_wback_ioc(phys_addr_t start, unsigned long sz) {}
-
-/*
  * Exported DMA API
  */
 void dma_cache_wback_inv(phys_addr_t start, unsigned long sz)
@@ -1153,6 +1144,19 @@ noinline void __init arc_ioc_setup(void)
 {
         unsigned int ioc_base, mem_sz;
 
+        /*
+         * As for today we don't support both IOC and ZONE_HIGHMEM enabled
+         * simultaneously. This happens because as of today IOC aperture covers
+         * only ZONE_NORMAL (low mem) and any dma transactions outside this
+         * region won't be HW coherent.
+         * If we want to use both IOC and ZONE_HIGHMEM we can use
+         * bounce_buffer to handle dma transactions to HIGHMEM.
+         * Also it is possible to modify dma_direct cache ops or increase IOC
+         * aperture size if we are planning to use HIGHMEM without PAE.
+         */
+        if (IS_ENABLED(CONFIG_HIGHMEM))
+                panic("IOC and HIGHMEM can't be used simultaneously");
+
         /* Flush + invalidate + disable L1 dcache */
         __dc_disable();
 
@@ -1264,11 +1268,7 @@ void __init arc_cache_init_master(void)
         if (is_isa_arcv2() && ioc_enable)
                 arc_ioc_setup();
 
-        if (is_isa_arcv2() && ioc_enable) {
-                __dma_cache_wback_inv = __dma_cache_wback_inv_ioc;
-                __dma_cache_inv = __dma_cache_inv_ioc;
-                __dma_cache_wback = __dma_cache_wback_ioc;
-        } else if (is_isa_arcv2() && l2_line_sz && slc_enable) {
+        if (is_isa_arcv2() && l2_line_sz && slc_enable) {
                 __dma_cache_wback_inv = __dma_cache_wback_inv_slc;
                 __dma_cache_inv = __dma_cache_inv_slc;
                 __dma_cache_wback = __dma_cache_wback_slc;
@@ -1277,6 +1277,12 @@ void __init arc_cache_init_master(void)
                 __dma_cache_inv = __dma_cache_inv_l1;
                 __dma_cache_wback = __dma_cache_wback_l1;
         }
+        /*
+         * In case of IOC (say IOC+SLC case), pointers above could still be set
+         * but end up not being relevant as the first function in chain is not
+         * called at all for @dma_direct_ops
+         *     arch_sync_dma_for_cpu() -> dma_cache_*() -> __dma_cache_*()
+         */
 }
 
 void __ref arc_cache_init(void)
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index ec47e6079f5d..c75d5c3470e3 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -6,20 +6,17 @@
  * published by the Free Software Foundation.
  */
 
-/*
- * DMA Coherent API Notes
- *
- * I/O is inherently non-coherent on ARC. So a coherent DMA buffer is
- * implemented by accessing it using a kernel virtual address, with
- * Cache bit off in the TLB entry.
- *
- * The default DMA address == Phy address which is 0x8000_0000 based.
- */
-
 #include <linux/dma-noncoherent.h>
 #include <asm/cache.h>
 #include <asm/cacheflush.h>
 
+/*
+ * ARCH specific callbacks for generic noncoherent DMA ops (dma/noncoherent.c)
+ *  - hardware IOC not available (or "dma-coherent" not set for device in DT)
+ *  - But still handle both coherent and non-coherent requests from caller
+ *
+ * For DMA coherent hardware (IOC) generic code suffices
+ */
 void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
                 gfp_t gfp, unsigned long attrs)
 {
@@ -27,42 +24,29 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
         struct page *page;
         phys_addr_t paddr;
         void *kvaddr;
-        int need_coh = 1, need_kvaddr = 0;
-
-        page = alloc_pages(gfp, order);
-        if (!page)
-                return NULL;
+        bool need_coh = !(attrs & DMA_ATTR_NON_CONSISTENT);
 
         /*
-         * IOC relies on all data (even coherent DMA data) being in cache
-         * Thus allocate normal cached memory
-         *
-         * The gains with IOC are two pronged:
-         *   -For streaming data, elides need for cache maintenance, saving
-         *    cycles in flush code, and bus bandwidth as all the lines of a
-         *    buffer need to be flushed out to memory
-         *   -For coherent data, Read/Write to buffers terminate early in cache
-         *   (vs. always going to memory - thus are faster)
+         * __GFP_HIGHMEM flag is cleared by upper layer functions
+         * (in include/linux/dma-mapping.h) so we should never get a
+         * __GFP_HIGHMEM here.
          */
-        if ((is_isa_arcv2() && ioc_enable) ||
-            (attrs & DMA_ATTR_NON_CONSISTENT))
-                need_coh = 0;
+        BUG_ON(gfp & __GFP_HIGHMEM);
 
-        /*
-         * - A coherent buffer needs MMU mapping to enforce non-cachability
-         * - A highmem page needs a virtual handle (hence MMU mapping)
-         *   independent of cachability
-         */
-        if (PageHighMem(page) || need_coh)
-                need_kvaddr = 1;
+        page = alloc_pages(gfp, order);
+        if (!page)
+                return NULL;
 
         /* This is linear addr (0x8000_0000 based) */
         paddr = page_to_phys(page);
 
         *dma_handle = paddr;
 
-        /* This is kernel Virtual address (0x7000_0000 based) */
-        if (need_kvaddr) {
+        /*
+         * A coherent buffer needs MMU mapping to enforce non-cachability.
+         * kvaddr is kernel Virtual address (0x7000_0000 based).
+         */
+        if (need_coh) {
                 kvaddr = ioremap_nocache(paddr, size);
                 if (kvaddr == NULL) {
                         __free_pages(page, order);
@@ -93,12 +77,8 @@ void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 {
         phys_addr_t paddr = dma_handle;
         struct page *page = virt_to_page(paddr);
-        int is_non_coh = 1;
-
-        is_non_coh = (attrs & DMA_ATTR_NON_CONSISTENT) ||
-                        (is_isa_arcv2() && ioc_enable);
 
-        if (PageHighMem(page) || !is_non_coh)
+        if (!(attrs & DMA_ATTR_NON_CONSISTENT))
                 iounmap((void __force __iomem *)vaddr);
 
         __free_pages(page, get_order(size));
@@ -185,3 +165,23 @@ void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
                 break;
         }
 }
+
+/*
+ * Plug in coherent or noncoherent dma ops
+ */
+void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
+                        const struct iommu_ops *iommu, bool coherent)
+{
+        /*
+         * IOC hardware snoops all DMA traffic keeping the caches consistent
+         * with memory - eliding need for any explicit cache maintenance of
+         * DMA buffers - so we can use dma_direct cache ops.
+         */
+        if (is_isa_arcv2() && ioc_enable && coherent) {
+                set_dma_ops(dev, &dma_direct_ops);
+                dev_info(dev, "use dma_direct_ops cache ops\n");
+        } else {
+                set_dma_ops(dev, &dma_noncoherent_ops);
+                dev_info(dev, "use dma_noncoherent_ops cache ops\n");
+        }
+}
diff --git a/arch/arm/boot/dts/am335x-osd3358-sm-red.dts b/arch/arm/boot/dts/am335x-osd3358-sm-red.dts
index 4d969013f99a..4d969013f99a 100755..100644
--- a/arch/arm/boot/dts/am335x-osd3358-sm-red.dts
+++ b/arch/arm/boot/dts/am335x-osd3358-sm-red.dts
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index f0cbd86312dc..d4b7c59eec68 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -469,6 +469,7 @@
                         ti,hwmods = "rtc";
                         clocks = <&clk_32768_ck>;
                         clock-names = "int-clk";
+                        system-power-controller;
                         status = "disabled";
                 };
 
diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts
index 9fb47724b9c1..ad2ae25b7b4d 100644
--- a/arch/arm/boot/dts/imx23-evk.dts
+++ b/arch/arm/boot/dts/imx23-evk.dts
@@ -13,6 +13,43 @@
                 reg = <0x40000000 0x08000000>;
         };
 
+        reg_vddio_sd0: regulator-vddio-sd0 {
+                compatible = "regulator-fixed";
+                regulator-name = "vddio-sd0";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+                gpio = <&gpio1 29 0>;
+        };
+
+        reg_lcd_3v3: regulator-lcd-3v3 {
+                compatible = "regulator-fixed";
+                regulator-name = "lcd-3v3";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+                gpio = <&gpio1 18 0>;
+                enable-active-high;
+        };
+
+        reg_lcd_5v: regulator-lcd-5v {
+                compatible = "regulator-fixed";
+                regulator-name = "lcd-5v";
+                regulator-min-microvolt = <5000000>;
+                regulator-max-microvolt = <5000000>;
+        };
+
+        panel {
+                compatible = "sii,43wvf1g";
+                backlight = <&backlight_display>;
+                dvdd-supply = <&reg_lcd_3v3>;
+                avdd-supply = <&reg_lcd_5v>;
+
+                port {
+                        panel_in: endpoint {
+                                remote-endpoint = <&display_out>;
+                        };
+                };
+        };
+
         apb@80000000 {
                 apbh@80000000 {
                         gpmi-nand@8000c000 {
@@ -52,31 +89,11 @@
                         lcdif@80030000 {
                                 pinctrl-names = "default";
                                 pinctrl-0 = <&lcdif_24bit_pins_a>;
-                                lcd-supply = <&reg_lcd_3v3>;
-                                display = <&display0>;
                                 status = "okay";
 
-                                display0: display0 {
-                                        bits-per-pixel = <32>;
-                                        bus-width = <24>;
-
-                                        display-timings {
-                                                native-mode = <&timing0>;
-                                                timing0: timing0 {
-                                                        clock-frequency = <9200000>;
-                                                        hactive = <480>;
-                                                        vactive = <272>;
-                                                        hback-porch = <15>;
-                                                        hfront-porch = <8>;
-                                                        vback-porch = <12>;
-                                                        vfront-porch = <4>;
-                                                        hsync-len = <1>;
-                                                        vsync-len = <1>;
-                                                        hsync-active = <0>;
-                                                        vsync-active = <0>;
-                                                        de-active = <1>;
-                                                        pixelclk-active = <0>;
-                                                };
+                                port {
+                                        display_out: endpoint {
+                                                remote-endpoint = <&panel_in>;
                                         };
                                 };
                         };
@@ -118,32 +135,7 @@
                 };
         };
 
-        regulators {
-                compatible = "simple-bus";
-                #address-cells = <1>;
-                #size-cells = <0>;
-
-                reg_vddio_sd0: regulator@0 {
-                        compatible = "regulator-fixed";
-                        reg = <0>;
-                        regulator-name = "vddio-sd0";
-                        regulator-min-microvolt = <3300000>;
-                        regulator-max-microvolt = <3300000>;
-                        gpio = <&gpio1 29 0>;
-                };
-
-                reg_lcd_3v3: regulator@1 {
-                        compatible = "regulator-fixed";
-                        reg = <1>;
-                        regulator-name = "lcd-3v3";
-                        regulator-min-microvolt = <3300000>;
-                        regulator-max-microvolt = <3300000>;
-                        gpio = <&gpio1 18 0>;
-                        enable-active-high;
-                };
-        };
-
-        backlight {
+        backlight_display: backlight {
                 compatible = "pwm-backlight";
                 pwms = <&pwm 2 5000000>;
                 brightness-levels = <0 4 8 16 32 64 128 255>;
diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 6b0ae667640f..93ab5bdfe068 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -13,6 +13,87 @@
                 reg = <0x40000000 0x08000000>;
         };
 
+
+        reg_3p3v: regulator-3p3v {
+                compatible = "regulator-fixed";
+                regulator-name = "3P3V";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+                regulator-always-on;
+        };
+
+        reg_vddio_sd0: regulator-vddio-sd0 {
+                compatible = "regulator-fixed";
+                regulator-name = "vddio-sd0";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+                gpio = <&gpio3 28 0>;
+        };
+
+        reg_fec_3v3: regulator-fec-3v3 {
+                compatible = "regulator-fixed";
+                regulator-name = "fec-3v3";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+                gpio = <&gpio2 15 0>;
+        };
+
+        reg_usb0_vbus: regulator-usb0-vbus {
+                compatible = "regulator-fixed";
+                regulator-name = "usb0_vbus";
+                regulator-min-microvolt = <5000000>;
+                regulator-max-microvolt = <5000000>;
+                gpio = <&gpio3 9 0>;
+                enable-active-high;
+        };
+
+        reg_usb1_vbus: regulator-usb1-vbus {
+                compatible = "regulator-fixed";
+                regulator-name = "usb1_vbus";
+                regulator-min-microvolt = <5000000>;
+                regulator-max-microvolt = <5000000>;
+                gpio = <&gpio3 8 0>;
+                enable-active-high;
+        };
+
+        reg_lcd_3v3: regulator-lcd-3v3 {
+                compatible = "regulator-fixed";
+                regulator-name = "lcd-3v3";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+                gpio = <&gpio3 30 0>;
+                enable-active-high;
+        };
+
+        reg_can_3v3: regulator-can-3v3 {
+                compatible = "regulator-fixed";
+                regulator-name = "can-3v3";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+                gpio = <&gpio2 13 0>;
+                enable-active-high;
+        };
+
+        reg_lcd_5v: regulator-lcd-5v {
+                compatible = "regulator-fixed";
+                regulator-name = "lcd-5v";
+                regulator-min-microvolt = <5000000>;
+                regulator-max-microvolt = <5000000>;
+        };
+
+        panel {
+                compatible = "sii,43wvf1g";
+                backlight = <&backlight_display>;
+                dvdd-supply = <&reg_lcd_3v3>;
+                avdd-supply = <&reg_lcd_5v>;
+
+                port {
+                        panel_in: endpoint {
+                                remote-endpoint = <&display_out>;
+                        };
+                };
+        };
+
         apb@80000000 {
                 apbh@80000000 {
                         gpmi-nand@8000c000 {
@@ -116,31 +197,11 @@
                                 pinctrl-names = "default";
                                 pinctrl-0 = <&lcdif_24bit_pins_a
                                              &lcdif_pins_evk>;
-                                lcd-supply = <&reg_lcd_3v3>;
-                                display = <&display0>;
                                 status = "okay";
 
-                                display0: display0 {
-                                        bits-per-pixel = <32>;
-                                        bus-width = <24>;
-
-                                        display-timings {
-                                                native-mode = <&timing0>;
-                                                timing0: timing0 {
-                                                        clock-frequency = <33500000>;
-                                                        hactive = <800>;
-                                                        vactive = <480>;
-                                                        hback-porch = <89>;
-                                                        hfront-porch = <164>;
-                                                        vback-porch = <23>;
-                                                        vfront-porch = <10>;
-                                                        hsync-len = <10>;
-                                                        vsync-len = <10>;
-                                                        hsync-active = <0>;
-                                                        vsync-active = <0>;
-                                                        de-active = <1>;
-                                                        pixelclk-active = <0>;
-                                                };
+                                port {
+                                        display_out: endpoint {
+                                                remote-endpoint = <&panel_in>;
                                         };
                                 };
                         };
@@ -269,80 +330,6 @@
                 };
         };
 
-        regulators {
-                compatible = "simple-bus";
-                #address-cells = <1>;
-                #size-cells = <0>;
-
-                reg_3p3v: regulator@0 {
-                        compatible = "regulator-fixed";
-                        reg = <0>;
-                        regulator-name = "3P3V";
-                        regulator-min-microvolt = <3300000>;
-                        regulator-max-microvolt = <3300000>;
-                        regulator-always-on;
-                };
-
-                reg_vddio_sd0: regulator@1 {
-                        compatible = "regulator-fixed";
-                        reg = <1>;
-                        regulator-name = "vddio-sd0";
-                        regulator-min-microvolt = <3300000>;
-                        regulator-max-microvolt = <3300000>;
-                        gpio = <&gpio3 28 0>;
-                };
-
-                reg_fec_3v3: regulator@2 {
-                        compatible = "regulator-fixed";
-                        reg = <2>;
-                        regulator-name = "fec-3v3";
-                        regulator-min-microvolt = <3300000>;
-                        regulator-max-microvolt = <3300000>;
-                        gpio = <&gpio2 15 0>;
-                };
-
-                reg_usb0_vbus: regulator@3 {
-                        compatible = "regulator-fixed";
-                        reg = <3>;
-                        regulator-name = "usb0_vbus";
-                        regulator-min-microvolt = <5000000>;
-                        regulator-max-microvolt = <5000000>;
-                        gpio = <&gpio3 9 0>;
-                        enable-active-high;
-                };
-
-                reg_usb1_vbus: regulator@4 {
-                        compatible = "regulator-fixed";
-                        reg = <4>;
-                        regulator-name = "usb1_vbus";
-                        regulator-min-microvolt = <5000000>;
-                        regulator-max-microvolt = <5000000>;
-                        gpio = <&gpio3 8 0>;
-                        enable-active-high;
-                };
-
-                reg_lcd_3v3: regulator@5 {
-                        compatible = "regulator-fixed";
-                        reg = <5>;
-                        regulator-name = "lcd-3v3";
-                        regulator-min-microvolt = <3300000>;
-                        regulator-max-microvolt = <3300000>;
-                        gpio = <&gpio3 30 0>;
-                        enable-active-high;
-                };
-
-                reg_can_3v3: regulator@6 {
-                        compatible = "regulator-fixed";
-                        reg = <6>;
-                        regulator-name = "can-3v3";
-                        regulator-min-microvolt = <3300000>;
-                        regulator-max-microvolt = <3300000>;
-                        gpio = <&gpio2 13 0>;
-                        enable-active-high;
-                };
-
-        };
-
         sound {
                 compatible = "fsl,imx28-evk-sgtl5000",
                              "fsl,mxs-audio-sgtl5000";
@@ -363,7 +350,7 @@
                 };
         };
 
-        backlight {
+        backlight_display: backlight {
                 compatible = "pwm-backlight";
                 pwms = <&pwm 2 5000000>;
                 brightness-levels = <0 4 8 16 32 64 128 255>;
diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index 7cbc2ffa4b3a..7234e8330a57 100644
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi
@@ -126,10 +126,14 @@
                 interrupt-names = "msi";
                 #interrupt-cells = <1>;
                 interrupt-map-mask = <0 0 0 0x7>;
-                interrupt-map = <0 0 0 1 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
-                                <0 0 0 2 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
-                                <0 0 0 3 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
-                                <0 0 0 4 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
+                /*
+                 * Reference manual lists pci irqs incorrectly
+                 * Real hardware ordering is same as imx6: D+MSI, C, B, A
+                 */
+                interrupt-map = <0 0 0 1 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
+                                <0 0 0 2 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
+                                <0 0 0 3 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
+                                <0 0 0 4 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
                 clocks = <&clks IMX7D_PCIE_CTRL_ROOT_CLK>,
                          <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>,
                          <&clks IMX7D_PCIE_PHY_ROOT_CLK>;
diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts
index 12d6822f0057..04758a2a87f0 100644
--- a/arch/arm/boot/dts/omap4-droid4-xt894.dts
+++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts
@@ -354,7 +354,7 @@
 &mmc2 {
         vmmc-supply = <&vsdio>;
         bus-width = <8>;
-        non-removable;
+        ti,non-removable;
 };
 
 &mmc3 {
@@ -621,15 +621,6 @@
                 OMAP4_IOPAD(0x10c, PIN_INPUT | MUX_MODE1)       /* abe_mcbsp3_fsx */
                 >;
         };
-};
-
-&omap4_pmx_wkup {
-        usb_gpio_mux_sel2: pinmux_usb_gpio_mux_sel2_pins {
-                /* gpio_wk0 */
-                pinctrl-single,pins = <
-                OMAP4_IOPAD(0x040, PIN_OUTPUT_PULLDOWN | MUX_MODE3)
-                >;
-        };
 
         vibrator_direction_pin: pinmux_vibrator_direction_pin {
                 pinctrl-single,pins = <
@@ -644,6 +635,15 @@
         };
 };
 
+&omap4_pmx_wkup {
+        usb_gpio_mux_sel2: pinmux_usb_gpio_mux_sel2_pins {
+                /* gpio_wk0 */
+                pinctrl-single,pins = <
+                OMAP4_IOPAD(0x040, PIN_OUTPUT_PULLDOWN | MUX_MODE3)
+                >;
+        };
+};
+
 /*
  * As uart1 is wired to mdm6600 with rts and cts, we can use the cts pin for
  * uart1 wakeirq.
diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index e2c127608bcc..7eca43ff69bb 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -257,6 +257,7 @@ CONFIG_IMX_IPUV3_CORE=y
 CONFIG_DRM=y
 CONFIG_DRM_PANEL_LVDS=y
 CONFIG_DRM_PANEL_SIMPLE=y
+CONFIG_DRM_PANEL_SEIKO_43WVF1G=y
 CONFIG_DRM_DW_HDMI_AHB_AUDIO=m
 CONFIG_DRM_DW_HDMI_CEC=y
 CONFIG_DRM_IMX=y
diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig
index 148226e36152..7b8212857535 100644
--- a/arch/arm/configs/mxs_defconfig
+++ b/arch/arm/configs/mxs_defconfig
@@ -95,6 +95,7 @@ CONFIG_MFD_MXS_LRADC=y
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_DRM=y
+CONFIG_DRM_PANEL_SEIKO_43WVF1G=y
 CONFIG_DRM_MXSFB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
diff --git a/arch/arm/configs/versatile_defconfig b/arch/arm/configs/versatile_defconfig
index df68dc4056e5..5282324c7cef 100644
--- a/arch/arm/configs/versatile_defconfig
+++ b/arch/arm/configs/versatile_defconfig
@@ -5,19 +5,19 @@ CONFIG_HIGH_RES_TIMERS=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_SLAB=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_PARTITION_ADVANCED=y
 # CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_VERSATILE=y
 CONFIG_AEABI=y
 CONFIG_OABI_COMPAT=y
-CONFIG_CMA=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_CMDLINE="root=1f03 mem=32M"
 CONFIG_FPE_NWFPE=y
 CONFIG_VFP=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_CMA=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
@@ -59,6 +59,7 @@ CONFIG_GPIO_PL061=y
 CONFIG_DRM=y
 CONFIG_DRM_PANEL_ARM_VERSATILE=y
 CONFIG_DRM_PANEL_SIMPLE=y
+CONFIG_DRM_DUMB_VGA_DAC=y
 CONFIG_DRM_PL111=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
@@ -89,9 +90,10 @@ CONFIG_NFSD=y
 CONFIG_NFSD_V3=y
 CONFIG_NLS_CODEPAGE_850=m
 CONFIG_NLS_ISO8859_1=m
+CONFIG_FONTS=y
+CONFIG_FONT_ACORN_8x8=y
+CONFIG_DEBUG_FS=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_USER=y
 CONFIG_DEBUG_LL=y
-CONFIG_FONTS=y
-CONFIG_FONT_ACORN_8x8=y
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 79906cecb091..3ad482d2f1eb 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -223,7 +223,6 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
                               struct kvm_vcpu_events *events);
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
 int kvm_unmap_hva_range(struct kvm *kvm,
                         unsigned long start, unsigned long end);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 2ceffd85dd3d..cd65ea4e9c54 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -2161,6 +2161,37 @@ static int of_dev_hwmod_lookup(struct device_node *np,
 }
 
 /**
+ * omap_hwmod_fix_mpu_rt_idx - fix up mpu_rt_idx register offsets
+ *
+ * @oh: struct omap_hwmod *
+ * @np: struct device_node *
+ *
+ * Fix up module register offsets for modules with mpu_rt_idx.
+ * Only needed for cpsw with interconnect target module defined
+ * in device tree while still using legacy hwmod platform data
+ * for rev, sysc and syss registers.
+ *
+ * Can be removed when all cpsw hwmod platform data has been
+ * dropped.
+ */
+static void omap_hwmod_fix_mpu_rt_idx(struct omap_hwmod *oh,
+                                      struct device_node *np,
+                                      struct resource *res)
+{
+        struct device_node *child = NULL;
+        int error;
+
+        child = of_get_next_child(np, child);
+        if (!child)
+                return;
+
+        error = of_address_to_resource(child, oh->mpu_rt_idx, res);
+        if (error)
+                pr_err("%s: error mapping mpu_rt_idx: %i\n",
+                       __func__, error);
+}
+
+/**
  * omap_hwmod_parse_module_range - map module IO range from device tree
  * @oh: struct omap_hwmod *
  * @np: struct device_node *
@@ -2220,7 +2251,13 @@ int omap_hwmod_parse_module_range(struct omap_hwmod *oh,
         size = be32_to_cpup(ranges);
 
         pr_debug("omap_hwmod: %s %s at 0x%llx size 0x%llx\n",
-                 oh->name, np->name, base, size);
+                 oh ? oh->name : "", np->name, base, size);
+
+        if (oh && oh->mpu_rt_idx) {
+                omap_hwmod_fix_mpu_rt_idx(oh, np, res);
+
+                return 0;
+        }
 
         res->start = base;
         res->end = base + size - 1;
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 29e75b47becd..1b1a0e95c751 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -763,7 +763,6 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK
 
 config HOLES_IN_ZONE
         def_bool y
-        depends on NUMA
 
 source kernel/Kconfig.hz
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
index ceffc40810ee..48daec7f78ba 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
@@ -46,6 +46,7 @@
         pinctrl-0 = <&mmc0_pins>;
         vmmc-supply = <&reg_cldo1>;
         cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;
+        bus-width = <4>;
         status = "okay";
 };
 
@@ -56,6 +57,7 @@
         vqmmc-supply = <&reg_bldo2>;
         non-removable;
         cap-mmc-hw-reset;
+        bus-width = <8>;
         status = "okay";
 };
 
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index f67e8d5e93ad..db8d364f8476 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -38,6 +38,7 @@ CONFIG_ARCH_BCM_IPROC=y
 CONFIG_ARCH_BERLIN=y
 CONFIG_ARCH_BRCMSTB=y
 CONFIG_ARCH_EXYNOS=y
+CONFIG_ARCH_K3=y
 CONFIG_ARCH_LAYERSCAPE=y
 CONFIG_ARCH_LG1K=y
 CONFIG_ARCH_HISI=y
@@ -605,6 +606,8 @@ CONFIG_ARCH_TEGRA_132_SOC=y
 CONFIG_ARCH_TEGRA_210_SOC=y
 CONFIG_ARCH_TEGRA_186_SOC=y
 CONFIG_ARCH_TEGRA_194_SOC=y
+CONFIG_ARCH_K3_AM6_SOC=y
+CONFIG_SOC_TI=y
 CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
 CONFIG_EXTCON_USB_GPIO=y
 CONFIG_EXTCON_USBC_CROS_EC=y
diff --git a/arch/arm64/crypto/ghash-ce-glue.c b/arch/arm64/crypto/ghash-ce-glue.c
index 6e9f33d14930..067d8937d5af 100644
--- a/arch/arm64/crypto/ghash-ce-glue.c
+++ b/arch/arm64/crypto/ghash-ce-glue.c
@@ -417,7 +417,7 @@ static int gcm_encrypt(struct aead_request *req)
                 __aes_arm64_encrypt(ctx->aes_key.key_enc, tag, iv, nrounds);
                 put_unaligned_be32(2, iv + GCM_IV_SIZE);
 
-                while (walk.nbytes >= AES_BLOCK_SIZE) {
+                while (walk.nbytes >= (2 * AES_BLOCK_SIZE)) {
                         int blocks = walk.nbytes / AES_BLOCK_SIZE;
                         u8 *dst = walk.dst.virt.addr;
                         u8 *src = walk.src.virt.addr;
@@ -437,11 +437,18 @@ static int gcm_encrypt(struct aead_request *req)
                                         NULL);
 
                         err = skcipher_walk_done(&walk,
-                                                 walk.nbytes % AES_BLOCK_SIZE);
+                                                 walk.nbytes % (2 * AES_BLOCK_SIZE));
                 }
-                if (walk.nbytes)
+                if (walk.nbytes) {
                         __aes_arm64_encrypt(ctx->aes_key.key_enc, ks, iv,
                                             nrounds);
+                        if (walk.nbytes > AES_BLOCK_SIZE) {
+                                crypto_inc(iv, AES_BLOCK_SIZE);
+                                __aes_arm64_encrypt(ctx->aes_key.key_enc,
+                                                    ks + AES_BLOCK_SIZE, iv,
+                                                    nrounds);
+                        }
+                }
         }
 
         /* handle the tail */
@@ -545,7 +552,7 @@ static int gcm_decrypt(struct aead_request *req)
                 __aes_arm64_encrypt(ctx->aes_key.key_enc, tag, iv, nrounds);
                 put_unaligned_be32(2, iv + GCM_IV_SIZE);
 
-                while (walk.nbytes >= AES_BLOCK_SIZE) {
+                while (walk.nbytes >= (2 * AES_BLOCK_SIZE)) {
                         int blocks = walk.nbytes / AES_BLOCK_SIZE;
                         u8 *dst = walk.dst.virt.addr;
                         u8 *src = walk.src.virt.addr;
@@ -564,11 +571,21 @@ static int gcm_decrypt(struct aead_request *req)
                         } while (--blocks > 0);
 
                         err = skcipher_walk_done(&walk,
-                                                 walk.nbytes % AES_BLOCK_SIZE);
+                                                 walk.nbytes % (2 * AES_BLOCK_SIZE));
                 }
-                if (walk.nbytes)
+                if (walk.nbytes) {
+                        if (walk.nbytes > AES_BLOCK_SIZE) {
+                                u8 *iv2 = iv + AES_BLOCK_SIZE;
+
+                                memcpy(iv2, iv, AES_BLOCK_SIZE);
+                                crypto_inc(iv2, AES_BLOCK_SIZE);
+
+                                __aes_arm64_encrypt(ctx->aes_key.key_enc, iv2,
+                                                    iv2, nrounds);
+                        }
                         __aes_arm64_encrypt(ctx->aes_key.key_enc, iv, iv,
                                             nrounds);
+                }
         }
 
         /* handle the tail */
diff --git a/arch/arm64/crypto/sm4-ce-glue.c b/arch/arm64/crypto/sm4-ce-glue.c
index b7fb5274b250..0c4fc223f225 100644
--- a/arch/arm64/crypto/sm4-ce-glue.c
+++ b/arch/arm64/crypto/sm4-ce-glue.c
@@ -69,5 +69,5 @@ static void __exit sm4_ce_mod_fini(void)
         crypto_unregister_alg(&sm4_ce_alg);
 }
 
-module_cpu_feature_match(SM3, sm4_ce_mod_init);
+module_cpu_feature_match(SM4, sm4_ce_mod_init);
 module_exit(sm4_ce_mod_fini);
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index f26055f2306e..3d6d7336f871 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -61,8 +61,7 @@ struct kvm_arch {
         u64    vmid_gen;
         u32    vmid;
 
-        /* 1-level 2nd stage table and lock */
-        spinlock_t pgd_lock;
+        /* 1-level 2nd stage table, protected by kvm->mmu_lock */
         pgd_t *pgd;
 
         /* VTTBR value associated with above pgd and vmid */
@@ -357,7 +356,6 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
                               struct kvm_vcpu_events *events);
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
 int kvm_unmap_hva_range(struct kvm *kvm,
                         unsigned long start, unsigned long end);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index d496ef579859..ca46153d7915 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -98,8 +98,10 @@ static void activate_traps_vhe(struct kvm_vcpu *vcpu)
         val = read_sysreg(cpacr_el1);
         val |= CPACR_EL1_TTA;
         val &= ~CPACR_EL1_ZEN;
-        if (!update_fp_enabled(vcpu))
+        if (!update_fp_enabled(vcpu)) {
                 val &= ~CPACR_EL1_FPEN;
+                __activate_traps_fpsimd32(vcpu);
+        }
 
         write_sysreg(val, cpacr_el1);
 
@@ -114,8 +116,10 @@ static void __hyp_text __activate_traps_nvhe(struct kvm_vcpu *vcpu)
 
         val = CPTR_EL2_DEFAULT;
         val |= CPTR_EL2_TTA | CPTR_EL2_TZ;
-        if (!update_fp_enabled(vcpu))
+        if (!update_fp_enabled(vcpu)) {
                 val |= CPTR_EL2_TFP;
+                __activate_traps_fpsimd32(vcpu);
+        }
 
         write_sysreg(val, cptr_el2);
 }
@@ -129,7 +133,6 @@ static void __hyp_text __activate_traps(struct kvm_vcpu *vcpu)
         if (cpus_have_const_cap(ARM64_HAS_RAS_EXTN) && (hcr & HCR_VSE))
                 write_sysreg_s(vcpu->arch.vsesr_el2, SYS_VSESR_EL2);
 
-        __activate_traps_fpsimd32(vcpu);
         if (has_vhe())
                 activate_traps_vhe(vcpu);
         else
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 65f86271f02b..8080c9f489c3 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -985,8 +985,9 @@ int pmd_free_pte_page(pmd_t *pmdp, unsigned long addr)
 
         pmd = READ_ONCE(*pmdp);
 
-        /* No-op for empty entry and WARN_ON for valid entry */
-        if (!pmd_present(pmd) || !pmd_table(pmd)) {
+        if (!pmd_present(pmd))
+                return 1;
+        if (!pmd_table(pmd)) {
                 VM_WARN_ON(!pmd_table(pmd));
                 return 1;
         }
@@ -1007,8 +1008,9 @@ int pud_free_pmd_page(pud_t *pudp, unsigned long addr)
 
         pud = READ_ONCE(*pudp);
 
-        /* No-op for empty entry and WARN_ON for valid entry */
-        if (!pud_present(pud) || !pud_table(pud)) {
+        if (!pud_present(pud))
+                return 1;
+        if (!pud_table(pud)) {
                 VM_WARN_ON(!pud_table(pud));
                 return 1;
         }
diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c
index 3534aa6a4dc2..1b083c500b9a 100644
--- a/arch/m68k/mac/misc.c
+++ b/arch/m68k/mac/misc.c
@@ -98,11 +98,10 @@ static time64_t pmu_read_time(void)
 
         if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0)
                 return 0;
-        while (!req.complete)
-                pmu_poll();
+        pmu_wait_complete(&req);
 
-        time = (u32)((req.reply[1] << 24) | (req.reply[2] << 16) |
-                     (req.reply[3] << 8) | req.reply[4]);
+        time = (u32)((req.reply[0] << 24) | (req.reply[1] << 16) |
+                     (req.reply[2] << 8) | req.reply[3]);
 
         return time - RTC_OFFSET;
 }
@@ -116,8 +115,7 @@ static void pmu_write_time(time64_t time)
                         (data >> 24) & 0xFF, (data >> 16) & 0xFF,
                         (data >> 8) & 0xFF, data & 0xFF) < 0)
                 return;
-        while (!req.complete)
-                pmu_poll();
+        pmu_wait_complete(&req);
 }
 
 static __u8 pmu_read_pram(int offset)
diff --git a/arch/m68k/mm/mcfmmu.c b/arch/m68k/mm/mcfmmu.c
index 70dde040779b..f5453d944ff5 100644
--- a/arch/m68k/mm/mcfmmu.c
+++ b/arch/m68k/mm/mcfmmu.c
@@ -172,7 +172,7 @@ void __init cf_bootmem_alloc(void)
         high_memory = (void *)_ramend;
 
         /* Reserve kernel text/data/bss */
-        memblock_reserve(memstart, memstart - _rambase);
+        memblock_reserve(_rambase, memstart - _rambase);
 
         m68k_virt_to_node_shift = fls(_ramend - 1) - 6;
         module_fixup(NULL, __start_fixup, __stop_fixup);
diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index a9af1d2dcd69..2c1c53d12179 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -931,7 +931,6 @@ enum kvm_mips_fault_result kvm_trap_emul_gva_fault(struct kvm_vcpu *vcpu,
                                                    bool write);
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
 int kvm_unmap_hva_range(struct kvm *kvm,
                         unsigned long start, unsigned long end);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c
index 019035d7225c..8f845f6e5f42 100644
--- a/arch/mips/kernel/vdso.c
+++ b/arch/mips/kernel/vdso.c
@@ -13,6 +13,7 @@
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -20,6 +21,7 @@
 
 #include <asm/abi.h>
 #include <asm/mips-cps.h>
+#include <asm/page.h>
 #include <asm/vdso.h>
 
 /* Kernel-provided data used by the VDSO. */
@@ -128,12 +130,30 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
         vvar_size = gic_size + PAGE_SIZE;
         size = vvar_size + image->size;
 
+        /*
+         * Find a region that's large enough for us to perform the
+         * colour-matching alignment below.
+         */
+        if (cpu_has_dc_aliases)
+                size += shm_align_mask + 1;
+
         base = get_unmapped_area(NULL, 0, size, 0, 0);
         if (IS_ERR_VALUE(base)) {
                 ret = base;
                 goto out;
         }
 
+        /*
+         * If we suffer from dcache aliasing, ensure that the VDSO data page
+         * mapping is coloured the same as the kernel's mapping of that memory.
+         * This ensures that when the kernel updates the VDSO data userland
+         * will observe it without requiring cache invalidations.
+         */
+        if (cpu_has_dc_aliases) {
+                base = __ALIGN_MASK(base, shm_align_mask);
+                base += ((unsigned long)&vdso_data - gic_size) & shm_align_mask;
+        }
+
         data_addr = base + gic_size;
         vdso_addr = data_addr + PAGE_SIZE;
 
diff --git a/arch/mips/kvm/mmu.c b/arch/mips/kvm/mmu.c
index ee64db032793..d8dcdb350405 100644
--- a/arch/mips/kvm/mmu.c
+++ b/arch/mips/kvm/mmu.c
@@ -512,16 +512,6 @@ static int kvm_unmap_hva_handler(struct kvm *kvm, gfn_t gfn, gfn_t gfn_end,
         return 1;
 }
 
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
-{
-        unsigned long end = hva + PAGE_SIZE;
-
-        handle_hva_to_gpa(kvm, hva, end, &kvm_unmap_hva_handler, NULL);
-
-        kvm_mips_callbacks->flush_shadow_all(kvm);
-        return 0;
-}
-
 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
 {
         handle_hva_to_gpa(kvm, start, end, &kvm_unmap_hva_handler, NULL);
diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 1d4248fa55e9..7068f341133d 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -40,6 +40,10 @@ config NDS32
         select NO_IOPORT_MAP
         select RTC_LIB
         select THREAD_INFO_IN_TASK
+        select HAVE_FUNCTION_TRACER
+        select HAVE_FUNCTION_GRAPH_TRACER
+        select HAVE_FTRACE_MCOUNT_RECORD
+        select HAVE_DYNAMIC_FTRACE
         help
           Andes(nds32) Linux support.
 
diff --git a/arch/nds32/Makefile b/arch/nds32/Makefile
index 63f4f173e5f4..3509fac10491 100644
--- a/arch/nds32/Makefile
+++ b/arch/nds32/Makefile
@@ -5,6 +5,10 @@ KBUILD_DEFCONFIG := defconfig
 
 comma = ,
 
+ifdef CONFIG_FUNCTION_TRACER
+arch-y += -malways-save-lp -mno-relax
+endif
+
 KBUILD_CFLAGS   += $(call cc-option, -mno-sched-prolog-epilog)
 KBUILD_CFLAGS   += -mcmodel=large
 
diff --git a/arch/nds32/include/asm/elf.h b/arch/nds32/include/asm/elf.h
index 56c479058802..f5f9cf7e0544 100644
--- a/arch/nds32/include/asm/elf.h
+++ b/arch/nds32/include/asm/elf.h
@@ -121,9 +121,9 @@ struct elf32_hdr;
  */
 #define ELF_CLASS       ELFCLASS32
 #ifdef __NDS32_EB__
-#define ELF_DATA        ELFDATA2MSB;
+#define ELF_DATA        ELFDATA2MSB
 #else
-#define ELF_DATA        ELFDATA2LSB;
+#define ELF_DATA        ELFDATA2LSB
 #endif
 #define ELF_ARCH        EM_NDS32
 #define USE_ELF_CORE_DUMP
diff --git a/arch/nds32/include/asm/ftrace.h b/arch/nds32/include/asm/ftrace.h
new file mode 100644
index 000000000000..2f96cc96aa35
--- /dev/null
+++ b/arch/nds32/include/asm/ftrace.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ASM_NDS32_FTRACE_H
+#define __ASM_NDS32_FTRACE_H
+
+#ifdef CONFIG_FUNCTION_TRACER
+
+#define HAVE_FUNCTION_GRAPH_FP_TEST
+
+#define MCOUNT_ADDR ((unsigned long)(_mcount))
+/* mcount call is composed of three instructions:
+ * sethi + ori + jral
+ */
+#define MCOUNT_INSN_SIZE 12
+
+extern void _mcount(unsigned long parent_ip);
+
+#ifdef CONFIG_DYNAMIC_FTRACE
+
+#define FTRACE_ADDR ((unsigned long)_ftrace_caller)
+
+#ifdef __NDS32_EL__
+#define INSN_NOP                0x09000040
+#define INSN_SIZE(insn)         (((insn & 0x00000080) == 0) ? 4 : 2)
+#define IS_SETHI(insn)          ((insn & 0x000000fe) == 0x00000046)
+#define ENDIAN_CONVERT(insn)    be32_to_cpu(insn)
+#else /* __NDS32_EB__ */
+#define INSN_NOP                0x40000009
+#define INSN_SIZE(insn)         (((insn & 0x80000000) == 0) ? 4 : 2)
+#define IS_SETHI(insn)          ((insn & 0xfe000000) == 0x46000000)
+#define ENDIAN_CONVERT(insn)    (insn)
+#endif
+
+extern void _ftrace_caller(unsigned long parent_ip);
+static inline unsigned long ftrace_call_adjust(unsigned long addr)
+{
+        return addr;
+}
+struct dyn_arch_ftrace {
+};
+
+#endif /* CONFIG_DYNAMIC_FTRACE */
+
+#endif /* CONFIG_FUNCTION_TRACER */
+
+#endif /* __ASM_NDS32_FTRACE_H */
diff --git a/arch/nds32/include/asm/nds32.h b/arch/nds32/include/asm/nds32.h
index 19b19394a936..68c38151c3e4 100644
--- a/arch/nds32/include/asm/nds32.h
+++ b/arch/nds32/include/asm/nds32.h
@@ -17,6 +17,7 @@
 #else
 #define FP_OFFSET (-2)
 #endif
+#define LP_OFFSET (-1)
 
 extern void __init early_trap_init(void);
 static inline void GIE_ENABLE(void)
diff --git a/arch/nds32/include/asm/uaccess.h b/arch/nds32/include/asm/uaccess.h
index 18a009f3804d..362a32d9bd16 100644
--- a/arch/nds32/include/asm/uaccess.h
+++ b/arch/nds32/include/asm/uaccess.h
@@ -38,7 +38,7 @@ struct exception_table_entry {
 extern int fixup_exception(struct pt_regs *regs);
 
 #define KERNEL_DS       ((mm_segment_t) { ~0UL })
-#define USER_DS         ((mm_segment_t) {TASK_SIZE - 1})
+#define USER_DS         ((mm_segment_t) {TASK_SIZE - 1})
 
 #define get_ds()        (KERNEL_DS)
 #define get_fs()        (current_thread_info()->addr_limit)
@@ -49,11 +49,11 @@ static inline void set_fs(mm_segment_t fs)
         current_thread_info()->addr_limit = fs;
 }
 
-#define segment_eq(a, b)    ((a) == (b))
+#define segment_eq(a, b)        ((a) == (b))
 
 #define __range_ok(addr, size) (size <= get_fs() && addr <= (get_fs() -size))
 
-#define access_ok(type, addr, size)                 \
+#define access_ok(type, addr, size)     \
         __range_ok((unsigned long)addr, (unsigned long)size)
 /*
  * Single-value transfer routines.  They automatically use the right
@@ -75,70 +75,73 @@ static inline void set_fs(mm_segment_t fs)
  * versions are void (ie, don't return a value as such).
  */
 
-#define get_user(x,p)                                                   \
-({                                                                      \
-        long __e = -EFAULT;                                             \
-        if(likely(access_ok(VERIFY_READ,  p, sizeof(*p)))) {            \
-                __e = __get_user(x,p);                                  \
-        } else                                                          \
-                x = 0;                                                  \
-        __e;                                                            \
-})
-#define __get_user(x,ptr)                                               \
+#define get_user        __get_user                                      \
+
+#define __get_user(x, ptr)                                              \
 ({                                                                      \
         long __gu_err = 0;                                              \
-        __get_user_err((x),(ptr),__gu_err);                             \
+        __get_user_check((x), (ptr), __gu_err);                         \
         __gu_err;                                                       \
 })
 
-#define __get_user_error(x,ptr,err)                                     \
+#define __get_user_error(x, ptr, err)                                   \
 ({                                                                      \
-        __get_user_err((x),(ptr),err);                                  \
-        (void) 0;                                                       \
+        __get_user_check((x), (ptr), (err));                            \
+        (void)0;                                                        \
 })
 
-#define __get_user_err(x,ptr,err)                                       \
+#define __get_user_check(x, ptr, err)                                   \
+({                                                                      \
+        const __typeof__(*(ptr)) __user *__p = (ptr);                   \
+        might_fault();                                                  \
+        if (access_ok(VERIFY_READ, __p, sizeof(*__p))) {                \
+                __get_user_err((x), __p, (err));                        \
+        } else {                                                        \
+                (x) = 0; (err) = -EFAULT;                               \
+        }                                                               \
+})
+
+#define __get_user_err(x, ptr, err)                                     \
 do {                                                                    \
-        unsigned long __gu_addr = (unsigned long)(ptr);                 \
         unsigned long __gu_val;                                         \
         __chk_user_ptr(ptr);                                            \
         switch (sizeof(*(ptr))) {                                       \
         case 1:                                                         \
-                __get_user_asm("lbi",__gu_val,__gu_addr,err);           \
+                __get_user_asm("lbi", __gu_val, (ptr), (err));          \
                 break;                                                  \
         case 2:                                                         \
-                __get_user_asm("lhi",__gu_val,__gu_addr,err);           \
+                __get_user_asm("lhi", __gu_val, (ptr), (err));          \
                 break;                                                  \
         case 4:                                                         \
-                __get_user_asm("lwi",__gu_val,__gu_addr,err);           \
+                __get_user_asm("lwi", __gu_val, (ptr), (err));          \
                 break;                                                  \
         case 8:                                                         \
-                __get_user_asm_dword(__gu_val,__gu_addr,err);           \
+                __get_user_asm_dword(__gu_val, (ptr), (err));           \
                 break;                                                  \
         default:                                                        \
                 BUILD_BUG();                                            \
                 break;                                                  \
         }                                                               \
-        (x) = (__typeof__(*(ptr)))__gu_val;                             \
+        (x) = (__force __typeof__(*(ptr)))__gu_val;                     \
 } while (0)
 
-#define __get_user_asm(inst,x,addr,err)                                 \
-        asm volatile(                                                   \
-        "1:     "inst"  %1,[%2]\n"                                      \
-        "2:\n"                                                          \
-        "       .section .fixup,\"ax\"\n"                               \
-        "       .align  2\n"                                            \
-        "3:     move %0, %3\n"                                          \
-        "       move %1, #0\n"                                          \
-        "       b       2b\n"                                           \
-        "       .previous\n"                                            \
-        "       .section __ex_table,\"a\"\n"                            \
-        "       .align  3\n"                                            \
-        "       .long   1b, 3b\n"                                       \
-        "       .previous"                                              \
-        : "+r" (err), "=&r" (x)                                         \
-        : "r" (addr), "i" (-EFAULT)                                     \
-        : "cc")
+#define __get_user_asm(inst, x, addr, err)                              \
+        __asm__ __volatile__ (                                          \
+                "1:     "inst"  %1,[%2]\n"                              \
+                "2:\n"                                                  \
+                "       .section .fixup,\"ax\"\n"                       \
+                "       .align  2\n"                                    \
+                "3:     move %0, %3\n"                                  \
+                "       move %1, #0\n"                                  \
+                "       b       2b\n"                                   \
+                "       .previous\n"                                    \
+                "       .section __ex_table,\"a\"\n"                    \
+                "       .align  3\n"                                    \
+                "       .long   1b, 3b\n"                               \
+                "       .previous"                                      \
+                : "+r" (err), "=&r" (x)                                 \
+                : "r" (addr), "i" (-EFAULT)                             \
+                : "cc")
 
 #ifdef __NDS32_EB__
 #define __gu_reg_oper0 "%H1"
@@ -149,61 +152,66 @@ do {									\
 #endif
 
 #define __get_user_asm_dword(x, addr, err)                              \
-        asm volatile(                                                   \
-        "\n1:\tlwi " __gu_reg_oper0 ",[%2]\n"                           \
-        "\n2:\tlwi " __gu_reg_oper1 ",[%2+4]\n"                         \
-        "3:\n"                                                          \
-        "       .section .fixup,\"ax\"\n"                               \
-        "       .align  2\n"                                            \
-        "4:     move    %0, %3\n"                                       \
-        "       b       3b\n"                                           \
-        "       .previous\n"                                            \
-        "       .section __ex_table,\"a\"\n"                            \
-        "       .align  3\n"                                            \
-        "       .long   1b, 4b\n"                                       \
-        "       .long   2b, 4b\n"                                       \
-        "       .previous"                                              \
-        : "+r"(err), "=&r"(x)                                           \
-        : "r"(addr), "i"(-EFAULT)                                       \
-        : "cc")
-#define put_user(x,p)                                                   \
-({                                                                      \
-        long __e = -EFAULT;                                             \
-        if(likely(access_ok(VERIFY_WRITE,  p, sizeof(*p)))) {           \
-                __e = __put_user(x,p);                                  \
-        }                                                               \
-        __e;                                                            \
-})
-#define __put_user(x,ptr)                                               \
+        __asm__ __volatile__ (                                          \
+                "\n1:\tlwi " __gu_reg_oper0 ",[%2]\n"                   \
+                "\n2:\tlwi " __gu_reg_oper1 ",[%2+4]\n"                 \
+                "3:\n"                                                  \
+                "       .section .fixup,\"ax\"\n"                       \
+                "       .align  2\n"                                    \
+                "4:     move    %0, %3\n"                               \
+                "       b       3b\n"                                   \
+                "       .previous\n"                                    \
+                "       .section __ex_table,\"a\"\n"                    \
+                "       .align  3\n"                                    \
+                "       .long   1b, 4b\n"                               \
+                "       .long   2b, 4b\n"                               \
+                "       .previous"                                      \
+                : "+r"(err), "=&r"(x)                                   \
+                : "r"(addr), "i"(-EFAULT)                               \
+                : "cc")
+
+#define put_user        __put_user                                      \
+
+#define __put_user(x, ptr)                                              \
 ({                                                                      \
         long __pu_err = 0;                                              \
-        __put_user_err((x),(ptr),__pu_err);                             \
+        __put_user_err((x), (ptr), __pu_err);                           \
         __pu_err;                                                       \
 })
 
-#define __put_user_error(x,ptr,err)                                     \
+#define __put_user_error(x, ptr, err)                                   \
+({                                                                      \
+        __put_user_err((x), (ptr), (err));                              \
+        (void)0;                                                        \
+})
+
+#define __put_user_check(x, ptr, err)                                   \
 ({                                                                      \
-        __put_user_err((x),(ptr),err);                                  \
-        (void) 0;                                                       \
+        __typeof__(*(ptr)) __user *__p = (ptr);                         \
+        might_fault();                                                  \
+        if (access_ok(VERIFY_WRITE, __p, sizeof(*__p))) {               \
+                __put_user_err((x), __p, (err));                        \
+        } else  {                                                       \
+                (err) = -EFAULT;                                        \
+        }                                                               \
 })
 
-#define __put_user_err(x,ptr,err)                                       \
+#define __put_user_err(x, ptr, err)                                     \
 do {                                                                    \
-        unsigned long __pu_addr = (unsigned long)(ptr);                 \
         __typeof__(*(ptr)) __pu_val = (x);                              \
         __chk_user_ptr(ptr);                                            \
         switch (sizeof(*(ptr))) {                                       \
         case 1:                                                         \
-                __put_user_asm("sbi",__pu_val,__pu_addr,err);           \
+                __put_user_asm("sbi", __pu_val, (ptr), (err));          \
                 break;                                                  \
         case 2:                                                         \
-                __put_user_asm("shi",__pu_val,__pu_addr,err);           \
+                __put_user_asm("shi", __pu_val, (ptr), (err));          \
                 break;                                                  \
         case 4:                                                         \
-                __put_user_asm("swi",__pu_val,__pu_addr,err);           \
+                __put_user_asm("swi", __pu_val, (ptr), (err));          \
                 break;                                                  \
         case 8:                                                         \
-                __put_user_asm_dword(__pu_val,__pu_addr,err);           \
+                __put_user_asm_dword(__pu_val, (ptr), (err));           \
                 break;                                                  \
         default:                                                        \
                 BUILD_BUG();                                            \
@@ -211,22 +219,22 @@ do {									\
         }                                                               \
 } while (0)
 
-#define __put_user_asm(inst,x,addr,err)                                 \
-        asm volatile(                                                   \
-        "1:     "inst"  %1,[%2]\n"                                      \
-        "2:\n"                                                          \
-        "       .section .fixup,\"ax\"\n"                               \
-        "       .align  2\n"                                            \
-        "3:     move    %0, %3\n"                                       \
-        "       b       2b\n"                                           \
-        "       .previous\n"                                            \
-        "       .section __ex_table,\"a\"\n"                            \
-        "       .align  3\n"                                            \
-        "       .long   1b, 3b\n"                                       \
-        "       .previous"                                              \
-        : "+r" (err)                                                    \
-        : "r" (x), "r" (addr), "i" (-EFAULT)                            \
-        : "cc")
+#define __put_user_asm(inst, x, addr, err)                              \
+        __asm__ __volatile__ (                                          \
+                "1:     "inst"  %1,[%2]\n"                              \
+                "2:\n"                                                  \
+                "       .section .fixup,\"ax\"\n"                       \
+                "       .align  2\n"                                    \
+                "3:     move    %0, %3\n"                               \
+                "       b       2b\n"                                   \
+                "       .previous\n"                                    \
+                "       .section __ex_table,\"a\"\n"                    \
+                "       .align  3\n"                                    \
+                "       .long   1b, 3b\n"                               \
+                "       .previous"                                      \
+                : "+r" (err)                                            \
+                : "r" (x), "r" (addr), "i" (-EFAULT)                    \
+                : "cc")
 
 #ifdef __NDS32_EB__
 #define __pu_reg_oper0 "%H2"
@@ -237,23 +245,24 @@ do {									\
 #endif
 
 #define __put_user_asm_dword(x, addr, err)                              \
-        asm volatile(                                                   \
-        "\n1:\tswi " __pu_reg_oper0 ",[%1]\n"                           \
-        "\n2:\tswi " __pu_reg_oper1 ",[%1+4]\n"                         \
-        "3:\n"                                                          \
-        "       .section .fixup,\"ax\"\n"                               \
-        "       .align  2\n"                                            \
-        "4:     move    %0, %3\n"                                       \
-        "       b       3b\n"                                           \
-        "       .previous\n"                                            \
-        "       .section __ex_table,\"a\"\n"                            \
-        "       .align  3\n"                                            \
-        "       .long   1b, 4b\n"                                       \
-        "       .long   2b, 4b\n"                                       \
-        "       .previous"                                              \
-        : "+r"(err)                                                     \
-        : "r"(addr), "r"(x), "i"(-EFAULT)                               \
-        : "cc")
+        __asm__ __volatile__ (                                          \
+                "\n1:\tswi " __pu_reg_oper0 ",[%1]\n"                   \
+                "\n2:\tswi " __pu_reg_oper1 ",[%1+4]\n"                 \
+                "3:\n"                                                  \
+                "       .section .fixup,\"ax\"\n"                       \
+                "       .align  2\n"                                    \
+                "4:     move    %0, %3\n"                               \
+                "       b       3b\n"                                   \
+                "       .previous\n"                                    \
+                "       .section __ex_table,\"a\"\n"                    \
+                "       .align  3\n"                                    \
+                "       .long   1b, 4b\n"                               \
+                "       .long   2b, 4b\n"                               \
+                "       .previous"                                      \
+                : "+r"(err)                                             \
+                : "r"(addr), "r"(x), "i"(-EFAULT)                       \
+                : "cc")
+
 extern unsigned long __arch_clear_user(void __user * addr, unsigned long n);
 extern long strncpy_from_user(char *dest, const char __user * src, long count);
 extern __must_check long strlen_user(const char __user * str);
diff --git a/arch/nds32/kernel/Makefile b/arch/nds32/kernel/Makefile
index 42792743e8b9..27cded39fa66 100644
--- a/arch/nds32/kernel/Makefile
+++ b/arch/nds32/kernel/Makefile
@@ -21,3 +21,9 @@ extra-y := head.o vmlinux.lds
 
 
 obj-y                           += vdso/
+
+obj-$(CONFIG_FUNCTION_TRACER)   += ftrace.o
+
+ifdef CONFIG_FUNCTION_TRACER
+CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
+endif
diff --git a/arch/nds32/kernel/atl2c.c b/arch/nds32/kernel/atl2c.c
index 0c6d031a1c4a..0c5386e72098 100644
--- a/arch/nds32/kernel/atl2c.c
+++ b/arch/nds32/kernel/atl2c.c
@@ -9,7 +9,8 @@
 
 void __iomem *atl2c_base;
 static const struct of_device_id atl2c_ids[] __initconst = {
-        {.compatible = "andestech,atl2c",}
+        {.compatible = "andestech,atl2c",},
+        {}
 };
 
 static int __init atl2c_of_init(void)
diff --git a/arch/nds32/kernel/ex-entry.S b/arch/nds32/kernel/ex-entry.S
index b8ae4e9a6b93..21a144071566 100644
--- a/arch/nds32/kernel/ex-entry.S
+++ b/arch/nds32/kernel/ex-entry.S
@@ -118,7 +118,7 @@ common_exception_handler:
         /* interrupt */
 2:
 #ifdef CONFIG_TRACE_IRQFLAGS
-        jal     trace_hardirqs_off
+        jal     __trace_hardirqs_off
 #endif
         move    $r0, $sp
         sethi   $lp, hi20(ret_from_intr)
diff --git a/arch/nds32/kernel/ex-exit.S b/arch/nds32/kernel/ex-exit.S
index 03e4f7788a18..f00af92f7e22 100644
--- a/arch/nds32/kernel/ex-exit.S
+++ b/arch/nds32/kernel/ex-exit.S
@@ -138,8 +138,8 @@ no_work_pending:
 #ifdef CONFIG_TRACE_IRQFLAGS
         lwi     $p0, [$sp+(#IPSW_OFFSET)]
         andi    $p0, $p0, #0x1
-        la      $r10, trace_hardirqs_off
-        la      $r9, trace_hardirqs_on
+        la      $r10, __trace_hardirqs_off
+        la      $r9, __trace_hardirqs_on
         cmovz   $r9, $p0, $r10
         jral    $r9
 #endif
diff --git a/arch/nds32/kernel/ftrace.c b/arch/nds32/kernel/ftrace.c
new file mode 100644
index 000000000000..a0a9679ad5de
--- /dev/null
+++ b/arch/nds32/kernel/ftrace.c
@@ -0,0 +1,309 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/ftrace.h>
+#include <linux/uaccess.h>
+#include <asm/cacheflush.h>
+
+#ifndef CONFIG_DYNAMIC_FTRACE
+extern void (*ftrace_trace_function)(unsigned long, unsigned long,
+                                     struct ftrace_ops*, struct pt_regs*);
+extern int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace);
+extern void ftrace_graph_caller(void);
+
+noinline void __naked ftrace_stub(unsigned long ip, unsigned long parent_ip,
+                                  struct ftrace_ops *op, struct pt_regs *regs)
+{
+        __asm__ ("");  /* avoid to optimize as pure function */
+}
+
+noinline void _mcount(unsigned long parent_ip)
+{
+        /* save all state by the compiler prologue */
+
+        unsigned long ip = (unsigned long)__builtin_return_address(0);
+
+        if (ftrace_trace_function != ftrace_stub)
+                ftrace_trace_function(ip - MCOUNT_INSN_SIZE, parent_ip,
+                                      NULL, NULL);
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+        if (ftrace_graph_return != (trace_func_graph_ret_t)ftrace_stub
+            || ftrace_graph_entry != ftrace_graph_entry_stub)
+                ftrace_graph_caller();
+#endif
+
+        /* restore all state by the compiler epilogue */
+}
+EXPORT_SYMBOL(_mcount);
+
+#else /* CONFIG_DYNAMIC_FTRACE */
+
+noinline void __naked ftrace_stub(unsigned long ip, unsigned long parent_ip,
+                                  struct ftrace_ops *op, struct pt_regs *regs)
+{
+        __asm__ ("");  /* avoid to optimize as pure function */
+}
+
+noinline void __naked _mcount(unsigned long parent_ip)
+{
+        __asm__ ("");  /* avoid to optimize as pure function */
+}
+EXPORT_SYMBOL(_mcount);
+
+#define XSTR(s) STR(s)
+#define STR(s) #s
+void _ftrace_caller(unsigned long parent_ip)
+{
+        /* save all state needed by the compiler prologue */
+
+        /*
+         * prepare arguments for real tracing function
+         * first  arg : __builtin_return_address(0) - MCOUNT_INSN_SIZE
+         * second arg : parent_ip
+         */
+        __asm__ __volatile__ (
+                "move $r1, %0                              \n\t"
+                "addi $r0, %1, #-" XSTR(MCOUNT_INSN_SIZE) "\n\t"
+                :
+                : "r" (parent_ip), "r" (__builtin_return_address(0)));
+
+        /* a placeholder for the call to a real tracing function */
+        __asm__ __volatile__ (
+                "ftrace_call:           \n\t"
+                "nop                    \n\t"
+                "nop                    \n\t"
+                "nop                    \n\t");
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+        /* a placeholder for the call to ftrace_graph_caller */
+        __asm__ __volatile__ (
+                "ftrace_graph_call:     \n\t"
+                "nop                    \n\t"
+                "nop                    \n\t"
+                "nop                    \n\t");
+#endif
+        /* restore all state needed by the compiler epilogue */
+}
+
+int __init ftrace_dyn_arch_init(void)
+{
+        return 0;
+}
+
+int ftrace_arch_code_modify_prepare(void)
+{
+        set_all_modules_text_rw();
+        return 0;
+}
+
+int ftrace_arch_code_modify_post_process(void)
+{
+        set_all_modules_text_ro();
+        return 0;
+}
+
+static unsigned long gen_sethi_insn(unsigned long addr)
+{
+        unsigned long opcode = 0x46000000;
+        unsigned long imm = addr >> 12;
+        unsigned long rt_num = 0xf << 20;
+
+        return ENDIAN_CONVERT(opcode | rt_num | imm);
+}
+
+static unsigned long gen_ori_insn(unsigned long addr)
+{
+        unsigned long opcode = 0x58000000;
+        unsigned long imm = addr & 0x0000fff;
+        unsigned long rt_num = 0xf << 20;
+        unsigned long ra_num = 0xf << 15;
+
+        return ENDIAN_CONVERT(opcode | rt_num | ra_num | imm);
+}
+
+static unsigned long gen_jral_insn(unsigned long addr)
+{
+        unsigned long opcode = 0x4a000001;
+        unsigned long rt_num = 0x1e << 20;
+        unsigned long rb_num = 0xf << 10;
+
+        return ENDIAN_CONVERT(opcode | rt_num | rb_num);
+}
+
+static void ftrace_gen_call_insn(unsigned long *call_insns,
+                                 unsigned long addr)
+{
+        call_insns[0] = gen_sethi_insn(addr); /* sethi $r15, imm20u       */
+        call_insns[1] = gen_ori_insn(addr);   /* ori   $r15, $r15, imm15u */
+        call_insns[2] = gen_jral_insn(addr);  /* jral  $lp,  $r15         */
+}
+
+static int __ftrace_modify_code(unsigned long pc, unsigned long *old_insn,
+                                unsigned long *new_insn, bool validate)
+{
+        unsigned long orig_insn[3];
+
+        if (validate) {
+                if (probe_kernel_read(orig_insn, (void *)pc, MCOUNT_INSN_SIZE))
+                        return -EFAULT;
+                if (memcmp(orig_insn, old_insn, MCOUNT_INSN_SIZE))
+                        return -EINVAL;
+        }
+
+        if (probe_kernel_write((void *)pc, new_insn, MCOUNT_INSN_SIZE))
+                return -EPERM;
+
+        return 0;
+}
+
+static int ftrace_modify_code(unsigned long pc, unsigned long *old_insn,
+                              unsigned long *new_insn, bool validate)
+{
+        int ret;
+
+        ret = __ftrace_modify_code(pc, old_insn, new_insn, validate);
+        if (ret)
+                return ret;
+
+        flush_icache_range(pc, pc + MCOUNT_INSN_SIZE);
+
+        return ret;
+}
+
+int ftrace_update_ftrace_func(ftrace_func_t func)
+{
+        unsigned long pc = (unsigned long)&ftrace_call;
+        unsigned long old_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
+        unsigned long new_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
+
+        if (func != ftrace_stub)
+                ftrace_gen_call_insn(new_insn, (unsigned long)func);
+
+        return ftrace_modify_code(pc, old_insn, new_insn, false);
+}
+
+int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
+{
+        unsigned long pc = rec->ip;
+        unsigned long nop_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
+        unsigned long call_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
+
+        ftrace_gen_call_insn(call_insn, addr);
+
+        return ftrace_modify_code(pc, nop_insn, call_insn, true);
+}
+
+int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec,
+                    unsigned long addr)
+{
+        unsigned long pc = rec->ip;
+        unsigned long nop_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
+        unsigned long call_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
+
+        ftrace_gen_call_insn(call_insn, addr);
+
+        return ftrace_modify_code(pc, call_insn, nop_insn, true);
+}
+#endif /* CONFIG_DYNAMIC_FTRACE */
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
+                           unsigned long frame_pointer)
+{
+        unsigned long return_hooker = (unsigned long)&return_to_handler;
+        struct ftrace_graph_ent trace;
+        unsigned long old;
+        int err;
+
+        if (unlikely(atomic_read(&current->tracing_graph_pause)))
+                return;
+
+        old = *parent;
+
+        trace.func = self_addr;
+        trace.depth = current->curr_ret_stack + 1;
+
+        /* Only trace if the calling function expects to */
+        if (!ftrace_graph_entry(&trace))
+                return;
+
+        err = ftrace_push_return_trace(old, self_addr, &trace.depth,
+                                       frame_pointer, NULL);
+
+        if (err == -EBUSY)
+                return;
+
+        *parent = return_hooker;
+}
+
+noinline void ftrace_graph_caller(void)
+{
+        unsigned long *parent_ip =
+                (unsigned long *)(__builtin_frame_address(2) - 4);
+
+        unsigned long selfpc =
+                (unsigned long)(__builtin_return_address(1) - MCOUNT_INSN_SIZE);
+
+        unsigned long frame_pointer =
+                (unsigned long)__builtin_frame_address(3);
+
+        prepare_ftrace_return(parent_ip, selfpc, frame_pointer);
+}
+
+extern unsigned long ftrace_return_to_handler(unsigned long frame_pointer);
+void __naked return_to_handler(void)
+{
+        __asm__ __volatile__ (
+                /* save state needed by the ABI     */
+                "smw.adm $r0,[$sp],$r1,#0x0  \n\t"
+
+                /* get original return address      */
+                "move $r0, $fp               \n\t"
+                "bal ftrace_return_to_handler\n\t"
+                "move $lp, $r0               \n\t"
+
+                /* restore state nedded by the ABI  */
+                "lmw.bim $r0,[$sp],$r1,#0x0  \n\t");
+}
+
+#ifdef CONFIG_DYNAMIC_FTRACE
+extern unsigned long ftrace_graph_call;
+
+static int ftrace_modify_graph_caller(bool enable)
+{
+        unsigned long pc = (unsigned long)&ftrace_graph_call;
+        unsigned long nop_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
+        unsigned long call_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
+
+        ftrace_gen_call_insn(call_insn, (unsigned long)ftrace_graph_caller);
+
+        if (enable)
+                return ftrace_modify_code(pc, nop_insn, call_insn, true);
+        else
+                return ftrace_modify_code(pc, call_insn, nop_insn, true);
+}
+
+int ftrace_enable_ftrace_graph_caller(void)
+{
+        return ftrace_modify_graph_caller(true);
+}
+
+int ftrace_disable_ftrace_graph_caller(void)
+{
+        return ftrace_modify_graph_caller(false);
+}
+#endif /* CONFIG_DYNAMIC_FTRACE */
+
+#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
+
+
+#ifdef CONFIG_TRACE_IRQFLAGS
+noinline void __trace_hardirqs_off(void)
+{
+        trace_hardirqs_off();
+}
+noinline void __trace_hardirqs_on(void)
+{
+        trace_hardirqs_on();
+}
+#endif /* CONFIG_TRACE_IRQFLAGS */
diff --git a/arch/nds32/kernel/module.c b/arch/nds32/kernel/module.c
index 4167283d8293..1e31829cbc2a 100644
--- a/arch/nds32/kernel/module.c
+++ b/arch/nds32/kernel/module.c
@@ -40,7 +40,7 @@ void do_reloc16(unsigned int val, unsigned int *loc, unsigned int val_mask,
 
         tmp2 = tmp & loc_mask;
         if (partial_in_place) {
-                tmp &= (!loc_mask);
+                tmp &= (~loc_mask);
                 tmp =
                     tmp2 | ((tmp + ((val & val_mask) >> val_shift)) & val_mask);
         } else {
@@ -70,7 +70,7 @@ void do_reloc32(unsigned int val, unsigned int *loc, unsigned int val_mask,
 
         tmp2 = tmp & loc_mask;
         if (partial_in_place) {
-                tmp &= (!loc_mask);
+                tmp &= (~loc_mask);
                 tmp =
                     tmp2 | ((tmp + ((val & val_mask) >> val_shift)) & val_mask);
         } else {
diff --git a/arch/nds32/kernel/stacktrace.c b/arch/nds32/kernel/stacktrace.c
index 8b231e910ea6..d974c0c1c65f 100644
--- a/arch/nds32/kernel/stacktrace.c
+++ b/arch/nds32/kernel/stacktrace.c
@@ -4,6 +4,7 @@
 #include <linux/sched/debug.h>
 #include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
+#include <linux/ftrace.h>
 
 void save_stack_trace(struct stack_trace *trace)
 {
@@ -16,6 +17,7 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
         unsigned long *fpn;
         int skip = trace->skip;
         int savesched;
+        int graph_idx = 0;
 
         if (tsk == current) {
                 __asm__ __volatile__("\tori\t%0, $fp, #0\n":"=r"(fpn));
@@ -29,10 +31,12 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
                && (fpn >= (unsigned long *)TASK_SIZE)) {
                 unsigned long lpp, fpp;
 
-                lpp = fpn[-1];
+                lpp = fpn[LP_OFFSET];
                 fpp = fpn[FP_OFFSET];
                 if (!__kernel_text_address(lpp))
                         break;
+                else
+                        lpp = ftrace_graph_ret_addr(tsk, &graph_idx, lpp, NULL);
 
                 if (savesched || !in_sched_functions(lpp)) {
                         if (skip) {
diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c
index a6205fd4db52..1496aab48998 100644
--- a/arch/nds32/kernel/traps.c
+++ b/arch/nds32/kernel/traps.c
@@ -8,6 +8,7 @@
 #include <linux/kdebug.h>
 #include <linux/sched/task_stack.h>
 #include <linux/uaccess.h>
+#include <linux/ftrace.h>
 
 #include <asm/proc-fns.h>
 #include <asm/unistd.h>
@@ -94,28 +95,6 @@ static void dump_instr(struct pt_regs *regs)
         set_fs(fs);
 }
 
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-#include <linux/ftrace.h>
-static void
-get_real_ret_addr(unsigned long *addr, struct task_struct *tsk, int *graph)
-{
-        if (*addr == (unsigned long)return_to_handler) {
-                int index = tsk->curr_ret_stack;
-
-                if (tsk->ret_stack && index >= *graph) {
-                        index -= *graph;
-                        *addr = tsk->ret_stack[index].ret;
-                        (*graph)++;
-                }
-        }
-}
-#else
-static inline void
-get_real_ret_addr(unsigned long *addr, struct task_struct *tsk, int *graph)
-{
-}
-#endif
-
 #define LOOP_TIMES (100)
 static void __dump(struct task_struct *tsk, unsigned long *base_reg)
 {
@@ -126,7 +105,8 @@ static void __dump(struct task_struct *tsk, unsigned long *base_reg)
                 while (!kstack_end(base_reg)) {
                         ret_addr = *base_reg++;
                         if (__kernel_text_address(ret_addr)) {
-                                get_real_ret_addr(&ret_addr, tsk, &graph);
+                                ret_addr = ftrace_graph_ret_addr(
+                                                tsk, &graph, ret_addr, NULL);
                                 print_ip_sym(ret_addr);
                         }
                         if (--cnt < 0)
@@ -137,15 +117,12 @@ static void __dump(struct task_struct *tsk, unsigned long *base_reg)
                        !((unsigned long)base_reg & 0x3) &&
                        ((unsigned long)base_reg >= TASK_SIZE)) {
                         unsigned long next_fp;
-#if !defined(NDS32_ABI_2)
-                        ret_addr = base_reg[0];
-                        next_fp = base_reg[1];
-#else
-                        ret_addr = base_reg[-1];
+                        ret_addr = base_reg[LP_OFFSET];
                         next_fp = base_reg[FP_OFFSET];
-#endif
                         if (__kernel_text_address(ret_addr)) {
-                                get_real_ret_addr(&ret_addr, tsk, &graph);
+
+                                ret_addr = ftrace_graph_ret_addr(
+                                                tsk, &graph, ret_addr, NULL);
                                 print_ip_sym(ret_addr);
                         }
                         if (--cnt < 0)
@@ -196,11 +173,10 @@ void die(const char *str, struct pt_regs *regs, int err)
         pr_emerg("CPU: %i\n", smp_processor_id());
         show_regs(regs);
         pr_emerg("Process %s (pid: %d, stack limit = 0x%p)\n",
-                 tsk->comm, tsk->pid, task_thread_info(tsk) + 1);
+                 tsk->comm, tsk->pid, end_of_stack(tsk));
 
         if (!user_mode(regs) || in_interrupt()) {
-                dump_mem("Stack: ", regs->sp,
-                         THREAD_SIZE + (unsigned long)task_thread_info(tsk));
+                dump_mem("Stack: ", regs->sp, (regs->sp + PAGE_SIZE) & PAGE_MASK);
                 dump_instr(regs);
                 dump_stack();
         }
diff --git a/arch/nds32/kernel/vmlinux.lds.S b/arch/nds32/kernel/vmlinux.lds.S
index 288313b886ef..9e90f30a181d 100644
--- a/arch/nds32/kernel/vmlinux.lds.S
+++ b/arch/nds32/kernel/vmlinux.lds.S
@@ -13,14 +13,26 @@ OUTPUT_ARCH(nds32)
 ENTRY(_stext_lma)
 jiffies = jiffies_64;
 
+#if defined(CONFIG_GCOV_KERNEL)
+#define NDS32_EXIT_KEEP(x)      x
+#else
+#define NDS32_EXIT_KEEP(x)
+#endif
+
 SECTIONS
 {
         _stext_lma = TEXTADDR - LOAD_OFFSET;
         . = TEXTADDR;
         __init_begin = .;
         HEAD_TEXT_SECTION
+        .exit.text : {
+                NDS32_EXIT_KEEP(EXIT_TEXT)
+        }
         INIT_TEXT_SECTION(PAGE_SIZE)
         INIT_DATA_SECTION(16)
+        .exit.data : {
+                NDS32_EXIT_KEEP(EXIT_DATA)
+        }
         PERCPU_SECTION(L1_CACHE_BYTES)
         __init_end = .;
 
diff --git a/arch/nios2/Kconfig.debug b/arch/nios2/Kconfig.debug
index 7a49f0d28d14..f1da8a7b17ff 100644
--- a/arch/nios2/Kconfig.debug
+++ b/arch/nios2/Kconfig.debug
@@ -3,15 +3,6 @@
 config TRACE_IRQFLAGS_SUPPORT
         def_bool y
 
-config DEBUG_STACK_USAGE
-        bool "Enable stack utilization instrumentation"
-        depends on DEBUG_KERNEL
-        help
-          Enables the display of the minimum amount of free stack which each
-          task has ever had available in the sysrq-T and sysrq-P debug output.
-
-          This option will slow down process creation somewhat.
-
 config EARLY_PRINTK
         bool "Activate early kernel debugging"
         default y
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index db0b6eebbfa5..a80669209155 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -177,7 +177,6 @@ config PPC
         select HAVE_ARCH_KGDB
         select HAVE_ARCH_MMAP_RND_BITS
         select HAVE_ARCH_MMAP_RND_COMPAT_BITS   if COMPAT
-        select HAVE_ARCH_PREL32_RELOCATIONS
         select HAVE_ARCH_SECCOMP_FILTER
         select HAVE_ARCH_TRACEHOOK
         select HAVE_CBPF_JIT                    if !PPC64
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 3c0e8fb2b773..68e14afecac8 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -358,7 +358,7 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
         unsigned long pp, key;
         unsigned long v, orig_v, gr;
         __be64 *hptep;
-        int index;
+        long int index;
         int virtmode = vcpu->arch.shregs.msr & (data ? MSR_DR : MSR_IR);
 
         if (kvm_is_radix(vcpu->kvm))
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index 0af1c0aea1fe..fd6e8c13685f 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -725,10 +725,10 @@ int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
                                               gpa, shift);
                 kvmppc_radix_tlbie_page(kvm, gpa, shift);
                 if ((old & _PAGE_DIRTY) && memslot->dirty_bitmap) {
-                        unsigned long npages = 1;
+                        unsigned long psize = PAGE_SIZE;
                         if (shift)
-                                npages = 1ul << (shift - PAGE_SHIFT);
-                        kvmppc_update_dirty_map(memslot, gfn, npages);
+                                psize = 1ul << shift;
+                        kvmppc_update_dirty_map(memslot, gfn, psize);
                 }
         }
         return 0;                               
diff --git a/arch/riscv/include/asm/tlb.h b/arch/riscv/include/asm/tlb.h
index c229509288ea..439dc7072e05 100644
--- a/arch/riscv/include/asm/tlb.h
+++ b/arch/riscv/include/asm/tlb.h
@@ -14,6 +14,10 @@
 #ifndef _ASM_RISCV_TLB_H
 #define _ASM_RISCV_TLB_H
 
+struct mmu_gather;
+
+static void tlb_flush(struct mmu_gather *tlb);
+
 #include <asm-generic/tlb.h>
 
 static inline void tlb_flush(struct mmu_gather *tlb)
diff --git a/arch/riscv/kernel/sys_riscv.c b/arch/riscv/kernel/sys_riscv.c
index 568026ccf6e8..fb03a4482ad6 100644
--- a/arch/riscv/kernel/sys_riscv.c
+++ b/arch/riscv/kernel/sys_riscv.c
@@ -65,24 +65,11 @@ SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
 SYSCALL_DEFINE3(riscv_flush_icache, uintptr_t, start, uintptr_t, end,
         uintptr_t, flags)
 {
-#ifdef CONFIG_SMP
-        struct mm_struct *mm = current->mm;
-        bool local = (flags & SYS_RISCV_FLUSH_ICACHE_LOCAL) != 0;
-#endif
-
         /* Check the reserved flags. */
         if (unlikely(flags & ~SYS_RISCV_FLUSH_ICACHE_ALL))
                 return -EINVAL;
 
-        /*
-         * Without CONFIG_SMP flush_icache_mm is a just a flush_icache_all(),
-         * which generates unused variable warnings all over this function.
-         */
-#ifdef CONFIG_SMP
-        flush_icache_mm(mm, local);
-#else
-        flush_icache_all();
-#endif
+        flush_icache_mm(current->mm, flags & SYS_RISCV_FLUSH_ICACHE_LOCAL);
 
         return 0;
 }
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index f31a15044c24..a8418e1379eb 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -16,7 +16,13 @@ typedef struct {
         unsigned long asce;
         unsigned long asce_limit;
         unsigned long vdso_base;
-        /* The mmu context allocates 4K page tables. */
+        /*
+         * The following bitfields need a down_write on the mm
+         * semaphore when they are written to. As they are only
+         * written once, they can be read without a lock.
+         *
+         * The mmu context allocates 4K page tables.
+         */
         unsigned int alloc_pgste:1;
         /* The mmu context uses extended page tables. */
         unsigned int has_pgste:1;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 91ad4a9425c0..f69333fd2fa3 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -695,7 +695,9 @@ static int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap)
                         r = -EINVAL;
                 else {
                         r = 0;
+                        down_write(&kvm->mm->mmap_sem);
                         kvm->mm->context.allow_gmap_hpage_1m = 1;
+                        up_write(&kvm->mm->mmap_sem);
                         /*
                          * We might have to create fake 4k page
                          * tables. To avoid that the hardware works on
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index d68f10441a16..8679bd74d337 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -280,9 +280,11 @@ retry:
                         goto retry;
                 }
         }
-        if (rc)
-                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
         up_read(&current->mm->mmap_sem);
+        if (rc == -EFAULT)
+                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+        if (rc < 0)
+                return rc;
         vcpu->run->s.regs.gprs[reg1] &= ~0xff;
         vcpu->run->s.regs.gprs[reg1] |= key;
         return 0;
@@ -324,9 +326,11 @@ retry:
                         goto retry;
                 }
         }
-        if (rc < 0)
-                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
         up_read(&current->mm->mmap_sem);
+        if (rc == -EFAULT)
+                return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+        if (rc < 0)
+                return rc;
         kvm_s390_set_psw_cc(vcpu, rc);
         return 0;
 }
@@ -390,12 +394,12 @@ static int handle_sske(struct kvm_vcpu *vcpu)
                                               FAULT_FLAG_WRITE, &unlocked);
                         rc = !rc ? -EAGAIN : rc;
                 }
+                up_read(&current->mm->mmap_sem);
                 if (rc == -EFAULT)
                         return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
-
-                up_read(&current->mm->mmap_sem);
-                if (rc >= 0)
-                        start += PAGE_SIZE;
+                if (rc < 0)
+                        return rc;
+                start += PAGE_SIZE;
         }
 
         if (m3 & (SSKE_MC | SSKE_MR)) {
@@ -1002,13 +1006,15 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
                                                       FAULT_FLAG_WRITE, &unlocked);
                                 rc = !rc ? -EAGAIN : rc;
                         }
+                        up_read(&current->mm->mmap_sem);
                         if (rc == -EFAULT)
                                 return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
-
-                        up_read(&current->mm->mmap_sem);
-                        if (rc >= 0)
-                                start += PAGE_SIZE;
+                        if (rc == -EAGAIN)
+                                continue;
+                        if (rc < 0)
+                                return rc;
                 }
+                start += PAGE_SIZE;
         }
         if (vcpu->run->s.regs.gprs[reg1] & PFMF_FSC) {
                 if (psw_bits(vcpu->arch.sie_block->gpsw).eaba == PSW_BITS_AMODE_64BIT) {
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 63844b95c22c..a2b28cd1e3fe 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -173,7 +173,8 @@ static int shadow_crycb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
                 return set_validity_icpt(scb_s, 0x0039U);
 
         /* copy only the wrapping keys */
-        if (read_guest_real(vcpu, crycb_addr + 72, &vsie_page->crycb, 56))
+        if (read_guest_real(vcpu, crycb_addr + 72,
+                            vsie_page->crycb.dea_wrapping_key_mask, 56))
                 return set_validity_icpt(scb_s, 0x0035U);
 
         scb_s->ecb3 |= ecb3_flags;
diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c
index 3641a294ed54..e4abe9b8f97a 100644
--- a/arch/sparc/kernel/of_device_32.c
+++ b/arch/sparc/kernel/of_device_32.c
@@ -9,6 +9,7 @@
 #include <linux/irq.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
+#include <linux/dma-mapping.h>
 #include <asm/leon.h>
 #include <asm/leon_amba.h>
 
@@ -381,6 +382,9 @@ static struct platform_device * __init scan_one_device(struct device_node *dp,
         else
                 dev_set_name(&op->dev, "%08x", dp->phandle);
 
+        op->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+        op->dev.dma_mask = &op->dev.coherent_dma_mask;
+
         if (of_device_register(op)) {
                 printk("%s: Could not register of device.\n",
                        dp->full_name);
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 44e4d4435bed..6df6086968c6 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -2,6 +2,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/of.h>
+#include <linux/dma-mapping.h>
 #include <linux/init.h>
 #include <linux/export.h>
 #include <linux/mod_devicetable.h>
@@ -675,6 +676,8 @@ static struct platform_device * __init scan_one_device(struct device_node *dp,
                 dev_set_name(&op->dev, "root");
         else
                 dev_set_name(&op->dev, "%08x", dp->phandle);
+        op->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+        op->dev.dma_mask = &op->dev.coherent_dma_mask;
 
         if (of_device_register(op)) {
                 printk("%s: Could not register of device.\n",
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c5ff296bc5d1..1a0be022f91d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2843,7 +2843,7 @@ config X86_SYSFB
           This option, if enabled, marks VGA/VBE/EFI framebuffers as generic
           framebuffers so the new generic system-framebuffer drivers can be
           used on x86. If the framebuffer is not compatible with the generic
-          modes, it is adverticed as fallback platform framebuffer so legacy
+          modes, it is advertised as fallback platform framebuffer so legacy
           drivers like efifb, vesafb and uvesafb can pick it up.
           If this option is not selected, all system framebuffers are always
           marked as fallback platform framebuffers as usual.
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 94859241bc3e..8f6e7eb8ae9f 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -175,22 +175,6 @@ ifdef CONFIG_FUNCTION_GRAPH_TRACER
   endif
 endif
 
-ifndef CC_HAVE_ASM_GOTO
-  $(error Compiler lacks asm-goto support.)
-endif
-
-#
-# Jump labels need '-maccumulate-outgoing-args' for gcc < 4.5.2 to prevent a
-# GCC bug (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46226).  There's no way
-# to test for this bug at compile-time because the test case needs to execute,
-# which is a no-go for cross compilers.  So check the GCC version instead.
-#
-ifdef CONFIG_JUMP_LABEL
-  ifneq ($(ACCUMULATE_OUTGOING_ARGS), 1)
-        ACCUMULATE_OUTGOING_ARGS = $(call cc-if-fullversion, -lt, 040502, 1)
-  endif
-endif
-
 ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1)
         # This compiler flag is not supported by Clang:
         KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args,)
@@ -312,6 +296,13 @@ PHONY += vdso_install
 vdso_install:
         $(Q)$(MAKE) $(build)=arch/x86/entry/vdso $@
 
+archprepare: checkbin
+checkbin:
+ifndef CC_HAVE_ASM_GOTO
+        @echo Compiler lacks asm-goto support.
+        @exit 1
+endif
+
 archclean:
         $(Q)rm -rf $(objtree)/arch/i386
         $(Q)rm -rf $(objtree)/arch/x86_64
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index 9bd139569b41..cb2deb61c5d9 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -223,34 +223,34 @@ ALL_F:      .octa 0xffffffffffffffffffffffffffffffff
         pcmpeqd TWOONE(%rip), \TMP2
         pand    POLY(%rip), \TMP2
         pxor    \TMP2, \TMP3
-        movdqa  \TMP3, HashKey(%arg2)
+        movdqu  \TMP3, HashKey(%arg2)
 
         movdqa     \TMP3, \TMP5
         pshufd     $78, \TMP3, \TMP1
         pxor       \TMP3, \TMP1
-        movdqa     \TMP1, HashKey_k(%arg2)
+        movdqu     \TMP1, HashKey_k(%arg2)
 
         GHASH_MUL  \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
 # TMP5 = HashKey^2<<1 (mod poly)
-        movdqa     \TMP5, HashKey_2(%arg2)
+        movdqu     \TMP5, HashKey_2(%arg2)
 # HashKey_2 = HashKey^2<<1 (mod poly)
         pshufd     $78, \TMP5, \TMP1
         pxor       \TMP5, \TMP1
-        movdqa     \TMP1, HashKey_2_k(%arg2)
+        movdqu     \TMP1, HashKey_2_k(%arg2)
 
         GHASH_MUL  \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
 # TMP5 = HashKey^3<<1 (mod poly)
-        movdqa     \TMP5, HashKey_3(%arg2)
+        movdqu     \TMP5, HashKey_3(%arg2)
         pshufd     $78, \TMP5, \TMP1
         pxor       \TMP5, \TMP1
-        movdqa     \TMP1, HashKey_3_k(%arg2)
+        movdqu     \TMP1, HashKey_3_k(%arg2)
 
         GHASH_MUL  \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
 # TMP5 = HashKey^3<<1 (mod poly)
-        movdqa     \TMP5, HashKey_4(%arg2)
+        movdqu     \TMP5, HashKey_4(%arg2)
         pshufd     $78, \TMP5, \TMP1
         pxor       \TMP5, \TMP1
-        movdqa     \TMP1, HashKey_4_k(%arg2)
+        movdqu     \TMP1, HashKey_4_k(%arg2)
 .endm
 
 # GCM_INIT initializes a gcm_context struct to prepare for encoding/decoding.
@@ -271,7 +271,7 @@ ALL_F:      .octa 0xffffffffffffffffffffffffffffffff
         movdqu %xmm0, CurCount(%arg2) # ctx_data.current_counter = iv
 
         PRECOMPUTE \SUBKEY, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
-        movdqa HashKey(%arg2), %xmm13
+        movdqu HashKey(%arg2), %xmm13
 
         CALC_AAD_HASH %xmm13, \AAD, \AADLEN, %xmm0, %xmm1, %xmm2, %xmm3, \
         %xmm4, %xmm5, %xmm6
@@ -997,7 +997,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         pshufd    $78, \XMM5, \TMP6
         pxor      \XMM5, \TMP6
         paddd     ONE(%rip), \XMM0              # INCR CNT
-        movdqa    HashKey_4(%arg2), \TMP5
+        movdqu    HashKey_4(%arg2), \TMP5
         PCLMULQDQ 0x11, \TMP5, \TMP4           # TMP4 = a1*b1
         movdqa    \XMM0, \XMM1
         paddd     ONE(%rip), \XMM0              # INCR CNT
@@ -1016,7 +1016,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         pxor      (%arg1), \XMM2
         pxor      (%arg1), \XMM3
         pxor      (%arg1), \XMM4
-        movdqa    HashKey_4_k(%arg2), \TMP5
+        movdqu    HashKey_4_k(%arg2), \TMP5
         PCLMULQDQ 0x00, \TMP5, \TMP6           # TMP6 = (a1+a0)*(b1+b0)
         movaps 0x10(%arg1), \TMP1
         AESENC    \TMP1, \XMM1              # Round 1
@@ -1031,7 +1031,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         movdqa    \XMM6, \TMP1
         pshufd    $78, \XMM6, \TMP2
         pxor      \XMM6, \TMP2
-        movdqa    HashKey_3(%arg2), \TMP5
+        movdqu    HashKey_3(%arg2), \TMP5
         PCLMULQDQ 0x11, \TMP5, \TMP1           # TMP1 = a1 * b1
         movaps 0x30(%arg1), \TMP3
         AESENC    \TMP3, \XMM1              # Round 3
@@ -1044,7 +1044,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         AESENC    \TMP3, \XMM2
         AESENC    \TMP3, \XMM3
         AESENC    \TMP3, \XMM4
-        movdqa    HashKey_3_k(%arg2), \TMP5
+        movdqu    HashKey_3_k(%arg2), \TMP5
         PCLMULQDQ 0x00, \TMP5, \TMP2           # TMP2 = (a1+a0)*(b1+b0)
         movaps 0x50(%arg1), \TMP3
         AESENC    \TMP3, \XMM1              # Round 5
@@ -1058,7 +1058,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         movdqa    \XMM7, \TMP1
         pshufd    $78, \XMM7, \TMP2
         pxor      \XMM7, \TMP2
-        movdqa    HashKey_2(%arg2), \TMP5
+        movdqu    HashKey_2(%arg2), \TMP5
 
         # Multiply TMP5 * HashKey using karatsuba
 
@@ -1074,7 +1074,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         AESENC    \TMP3, \XMM2
         AESENC    \TMP3, \XMM3
         AESENC    \TMP3, \XMM4
-        movdqa    HashKey_2_k(%arg2), \TMP5
+        movdqu    HashKey_2_k(%arg2), \TMP5
         PCLMULQDQ 0x00, \TMP5, \TMP2           # TMP2 = (a1+a0)*(b1+b0)
         movaps 0x80(%arg1), \TMP3
         AESENC    \TMP3, \XMM1             # Round 8
@@ -1092,7 +1092,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         movdqa    \XMM8, \TMP1
         pshufd    $78, \XMM8, \TMP2
         pxor      \XMM8, \TMP2
-        movdqa    HashKey(%arg2), \TMP5
+        movdqu    HashKey(%arg2), \TMP5
         PCLMULQDQ 0x11, \TMP5, \TMP1          # TMP1 = a1*b1
         movaps 0x90(%arg1), \TMP3
         AESENC    \TMP3, \XMM1            # Round 9
@@ -1121,7 +1121,7 @@ aes_loop_par_enc_done\@:
         AESENCLAST \TMP3, \XMM2
         AESENCLAST \TMP3, \XMM3
         AESENCLAST \TMP3, \XMM4
-        movdqa    HashKey_k(%arg2), \TMP5
+        movdqu    HashKey_k(%arg2), \TMP5
         PCLMULQDQ 0x00, \TMP5, \TMP2          # TMP2 = (a1+a0)*(b1+b0)
         movdqu    (%arg4,%r11,1), \TMP3
         pxor      \TMP3, \XMM1                 # Ciphertext/Plaintext XOR EK
@@ -1205,7 +1205,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         pshufd    $78, \XMM5, \TMP6
         pxor      \XMM5, \TMP6
         paddd     ONE(%rip), \XMM0              # INCR CNT
-        movdqa    HashKey_4(%arg2), \TMP5
+        movdqu    HashKey_4(%arg2), \TMP5
         PCLMULQDQ 0x11, \TMP5, \TMP4           # TMP4 = a1*b1
         movdqa    \XMM0, \XMM1
         paddd     ONE(%rip), \XMM0              # INCR CNT
@@ -1224,7 +1224,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         pxor      (%arg1), \XMM2
         pxor      (%arg1), \XMM3
         pxor      (%arg1), \XMM4
-        movdqa    HashKey_4_k(%arg2), \TMP5
+        movdqu    HashKey_4_k(%arg2), \TMP5
         PCLMULQDQ 0x00, \TMP5, \TMP6           # TMP6 = (a1+a0)*(b1+b0)
         movaps 0x10(%arg1), \TMP1
         AESENC    \TMP1, \XMM1              # Round 1
@@ -1239,7 +1239,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         movdqa    \XMM6, \TMP1
         pshufd    $78, \XMM6, \TMP2
         pxor      \XMM6, \TMP2
-        movdqa    HashKey_3(%arg2), \TMP5
+        movdqu    HashKey_3(%arg2), \TMP5
         PCLMULQDQ 0x11, \TMP5, \TMP1           # TMP1 = a1 * b1
         movaps 0x30(%arg1), \TMP3
         AESENC    \TMP3, \XMM1              # Round 3
@@ -1252,7 +1252,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         AESENC    \TMP3, \XMM2
         AESENC    \TMP3, \XMM3
         AESENC    \TMP3, \XMM4
-        movdqa    HashKey_3_k(%arg2), \TMP5
+        movdqu    HashKey_3_k(%arg2), \TMP5
         PCLMULQDQ 0x00, \TMP5, \TMP2           # TMP2 = (a1+a0)*(b1+b0)
         movaps 0x50(%arg1), \TMP3
         AESENC    \TMP3, \XMM1              # Round 5
@@ -1266,7 +1266,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         movdqa    \XMM7, \TMP1
         pshufd    $78, \XMM7, \TMP2
         pxor      \XMM7, \TMP2
-        movdqa    HashKey_2(%arg2), \TMP5
+        movdqu    HashKey_2(%arg2), \TMP5
 
         # Multiply TMP5 * HashKey using karatsuba
 
@@ -1282,7 +1282,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         AESENC    \TMP3, \XMM2
         AESENC    \TMP3, \XMM3
         AESENC    \TMP3, \XMM4
-        movdqa    HashKey_2_k(%arg2), \TMP5
+        movdqu    HashKey_2_k(%arg2), \TMP5
         PCLMULQDQ 0x00, \TMP5, \TMP2           # TMP2 = (a1+a0)*(b1+b0)
         movaps 0x80(%arg1), \TMP3
         AESENC    \TMP3, \XMM1             # Round 8
@@ -1300,7 +1300,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
         movdqa    \XMM8, \TMP1
         pshufd    $78, \XMM8, \TMP2
         pxor      \XMM8, \TMP2
-        movdqa    HashKey(%arg2), \TMP5
+        movdqu    HashKey(%arg2), \TMP5
         PCLMULQDQ 0x11, \TMP5, \TMP1          # TMP1 = a1*b1
         movaps 0x90(%arg1), \TMP3
         AESENC    \TMP3, \XMM1            # Round 9
@@ -1329,7 +1329,7 @@ aes_loop_par_dec_done\@:
         AESENCLAST \TMP3, \XMM2
         AESENCLAST \TMP3, \XMM3
         AESENCLAST \TMP3, \XMM4
-        movdqa    HashKey_k(%arg2), \TMP5
+        movdqu    HashKey_k(%arg2), \TMP5
         PCLMULQDQ 0x00, \TMP5, \TMP2          # TMP2 = (a1+a0)*(b1+b0)
         movdqu    (%arg4,%r11,1), \TMP3
         pxor      \TMP3, \XMM1                 # Ciphertext/Plaintext XOR EK
@@ -1405,10 +1405,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
         movdqa    \XMM1, \TMP6
         pshufd    $78, \XMM1, \TMP2
         pxor      \XMM1, \TMP2
-        movdqa    HashKey_4(%arg2), \TMP5
+        movdqu    HashKey_4(%arg2), \TMP5
         PCLMULQDQ 0x11, \TMP5, \TMP6       # TMP6 = a1*b1
         PCLMULQDQ 0x00, \TMP5, \XMM1       # XMM1 = a0*b0
-        movdqa    HashKey_4_k(%arg2), \TMP4
+        movdqu    HashKey_4_k(%arg2), \TMP4
         PCLMULQDQ 0x00, \TMP4, \TMP2       # TMP2 = (a1+a0)*(b1+b0)
         movdqa    \XMM1, \XMMDst
         movdqa    \TMP2, \XMM1              # result in TMP6, XMMDst, XMM1
@@ -1418,10 +1418,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
         movdqa    \XMM2, \TMP1
         pshufd    $78, \XMM2, \TMP2
         pxor      \XMM2, \TMP2
-        movdqa    HashKey_3(%arg2), \TMP5
+        movdqu    HashKey_3(%arg2), \TMP5
         PCLMULQDQ 0x11, \TMP5, \TMP1       # TMP1 = a1*b1
         PCLMULQDQ 0x00, \TMP5, \XMM2       # XMM2 = a0*b0
-        movdqa    HashKey_3_k(%arg2), \TMP4
+        movdqu    HashKey_3_k(%arg2), \TMP4
         PCLMULQDQ 0x00, \TMP4, \TMP2       # TMP2 = (a1+a0)*(b1+b0)
         pxor      \TMP1, \TMP6
         pxor      \XMM2, \XMMDst
@@ -1433,10 +1433,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
         movdqa    \XMM3, \TMP1
         pshufd    $78, \XMM3, \TMP2
         pxor      \XMM3, \TMP2
-        movdqa    HashKey_2(%arg2), \TMP5
+        movdqu    HashKey_2(%arg2), \TMP5
         PCLMULQDQ 0x11, \TMP5, \TMP1       # TMP1 = a1*b1
         PCLMULQDQ 0x00, \TMP5, \XMM3       # XMM3 = a0*b0
-        movdqa    HashKey_2_k(%arg2), \TMP4
+        movdqu    HashKey_2_k(%arg2), \TMP4
         PCLMULQDQ 0x00, \TMP4, \TMP2       # TMP2 = (a1+a0)*(b1+b0)
         pxor      \TMP1, \TMP6
         pxor      \XMM3, \XMMDst
@@ -1446,10 +1446,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
         movdqa    \XMM4, \TMP1
         pshufd    $78, \XMM4, \TMP2
         pxor      \XMM4, \TMP2
-        movdqa    HashKey(%arg2), \TMP5
+        movdqu    HashKey(%arg2), \TMP5
         PCLMULQDQ 0x11, \TMP5, \TMP1        # TMP1 = a1*b1
         PCLMULQDQ 0x00, \TMP5, \XMM4       # XMM4 = a0*b0
-        movdqa    HashKey_k(%arg2), \TMP4
+        movdqu    HashKey_k(%arg2), \TMP4
         PCLMULQDQ 0x00, \TMP4, \TMP2       # TMP2 = (a1+a0)*(b1+b0)
         pxor      \TMP1, \TMP6
         pxor      \XMM4, \XMMDst
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 5f4829f10129..dfb2f7c0d019 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2465,7 +2465,7 @@ perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs
 
         perf_callchain_store(entry, regs->ip);
 
-        if (!current->mm)
+        if (!nmi_uaccess_okay())
                 return;
 
         if (perf_callchain_user32(regs, entry))
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index b143717b92b3..ce84388e540c 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -80,11 +80,11 @@ static __always_inline void arch_atomic_sub(int i, atomic_t *v)
  * true if the result is zero, or false for all
  * other cases.
  */
-#define arch_atomic_sub_and_test arch_atomic_sub_and_test
 static __always_inline bool arch_atomic_sub_and_test(int i, atomic_t *v)
 {
         GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, "er", i, "%0", e);
 }
+#define arch_atomic_sub_and_test arch_atomic_sub_and_test
 
 /**
  * arch_atomic_inc - increment atomic variable
@@ -92,12 +92,12 @@ static __always_inline bool arch_atomic_sub_and_test(int i, atomic_t *v)
  *
  * Atomically increments @v by 1.
  */
-#define arch_atomic_inc arch_atomic_inc
 static __always_inline void arch_atomic_inc(atomic_t *v)
 {
         asm volatile(LOCK_PREFIX "incl %0"
                      : "+m" (v->counter));
 }
+#define arch_atomic_inc arch_atomic_inc
 
 /**
  * arch_atomic_dec - decrement atomic variable
@@ -105,12 +105,12 @@ static __always_inline void arch_atomic_inc(atomic_t *v)
  *
  * Atomically decrements @v by 1.
  */
-#define arch_atomic_dec arch_atomic_dec
 static __always_inline void arch_atomic_dec(atomic_t *v)
 {
         asm volatile(LOCK_PREFIX "decl %0"
                      : "+m" (v->counter));
 }
+#define arch_atomic_dec arch_atomic_dec
 
 /**
  * arch_atomic_dec_and_test - decrement and test
@@ -120,11 +120,11 @@ static __always_inline void arch_atomic_dec(atomic_t *v)
  * returns true if the result is 0, or false for all other
  * cases.
  */
-#define arch_atomic_dec_and_test arch_atomic_dec_and_test
 static __always_inline bool arch_atomic_dec_and_test(atomic_t *v)
 {
         GEN_UNARY_RMWcc(LOCK_PREFIX "decl", v->counter, "%0", e);
 }
+#define arch_atomic_dec_and_test arch_atomic_dec_and_test
 
 /**
  * arch_atomic_inc_and_test - increment and test
@@ -134,11 +134,11 @@ static __always_inline bool arch_atomic_dec_and_test(atomic_t *v)
  * and returns true if the result is zero, or false for all
  * other cases.
  */
-#define arch_atomic_inc_and_test arch_atomic_inc_and_test
 static __always_inline bool arch_atomic_inc_and_test(atomic_t *v)
 {
         GEN_UNARY_RMWcc(LOCK_PREFIX "incl", v->counter, "%0", e);
 }
+#define arch_atomic_inc_and_test arch_atomic_inc_and_test
 
 /**
  * arch_atomic_add_negative - add and test if negative
@@ -149,11 +149,11 @@ static __always_inline bool arch_atomic_inc_and_test(atomic_t *v)
  * if the result is negative, or false when
  * result is greater than or equal to zero.
  */
-#define arch_atomic_add_negative arch_atomic_add_negative
 static __always_inline bool arch_atomic_add_negative(int i, atomic_t *v)
 {
         GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, "er", i, "%0", s);
 }
+#define arch_atomic_add_negative arch_atomic_add_negative
 
 /**
  * arch_atomic_add_return - add integer and return
diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
index ef959f02d070..6a5b0ec460da 100644
--- a/arch/x86/include/asm/atomic64_32.h
+++ b/arch/x86/include/asm/atomic64_32.h
@@ -205,12 +205,12 @@ static inline long long arch_atomic64_sub(long long i, atomic64_t *v)
  *
  * Atomically increments @v by 1.
  */
-#define arch_atomic64_inc arch_atomic64_inc
 static inline void arch_atomic64_inc(atomic64_t *v)
 {
         __alternative_atomic64(inc, inc_return, /* no output */,
                                "S" (v) : "memory", "eax", "ecx", "edx");
 }
+#define arch_atomic64_inc arch_atomic64_inc
 
 /**
  * arch_atomic64_dec - decrement atomic64 variable
@@ -218,12 +218,12 @@ static inline void arch_atomic64_inc(atomic64_t *v)
  *
  * Atomically decrements @v by 1.
  */
-#define arch_atomic64_dec arch_atomic64_dec
 static inline void arch_atomic64_dec(atomic64_t *v)
 {
         __alternative_atomic64(dec, dec_return, /* no output */,
                                "S" (v) : "memory", "eax", "ecx", "edx");
 }
+#define arch_atomic64_dec arch_atomic64_dec
 
 /**
  * arch_atomic64_add_unless - add unless the number is a given value
@@ -245,7 +245,6 @@ static inline int arch_atomic64_add_unless(atomic64_t *v, long long a,
         return (int)a;
 }
 
-#define arch_atomic64_inc_not_zero arch_atomic64_inc_not_zero
 static inline int arch_atomic64_inc_not_zero(atomic64_t *v)
 {
         int r;
@@ -253,8 +252,8 @@ static inline int arch_atomic64_inc_not_zero(atomic64_t *v)
                              "S" (v) : "ecx", "edx", "memory");
         return r;
 }
+#define arch_atomic64_inc_not_zero arch_atomic64_inc_not_zero
 
-#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
 static inline long long arch_atomic64_dec_if_positive(atomic64_t *v)
 {
         long long r;
@@ -262,6 +261,7 @@ static inline long long arch_atomic64_dec_if_positive(atomic64_t *v)
                              "S" (v) : "ecx", "memory");
         return r;
 }
+#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
 
 #undef alternative_atomic64
 #undef __alternative_atomic64
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 4343d9b4f30e..5f851d92eecd 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -71,11 +71,11 @@ static inline void arch_atomic64_sub(long i, atomic64_t *v)
  * true if the result is zero, or false for all
  * other cases.
  */
-#define arch_atomic64_sub_and_test arch_atomic64_sub_and_test
 static inline bool arch_atomic64_sub_and_test(long i, atomic64_t *v)
 {
         GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, "er", i, "%0", e);
 }
+#define arch_atomic64_sub_and_test arch_atomic64_sub_and_test
 
 /**
  * arch_atomic64_inc - increment atomic64 variable
@@ -83,13 +83,13 @@ static inline bool arch_atomic64_sub_and_test(long i, atomic64_t *v)
  *
  * Atomically increments @v by 1.
  */
-#define arch_atomic64_inc arch_atomic64_inc
 static __always_inline void arch_atomic64_inc(atomic64_t *v)
 {
         asm volatile(LOCK_PREFIX "incq %0"
                      : "=m" (v->counter)
                      : "m" (v->counter));
 }
+#define arch_atomic64_inc arch_atomic64_inc
 
 /**
  * arch_atomic64_dec - decrement atomic64 variable
@@ -97,13 +97,13 @@ static __always_inline void arch_atomic64_inc(atomic64_t *v)
  *
  * Atomically decrements @v by 1.
  */
-#define arch_atomic64_dec arch_atomic64_dec
 static __always_inline void arch_atomic64_dec(atomic64_t *v)
 {
         asm volatile(LOCK_PREFIX "decq %0"
                      : "=m" (v->counter)
                      : "m" (v->counter));
 }
+#define arch_atomic64_dec arch_atomic64_dec
 
 /**
  * arch_atomic64_dec_and_test - decrement and test
@@ -113,11 +113,11 @@ static __always_inline void arch_atomic64_dec(atomic64_t *v)
  * returns true if the result is 0, or false for all other
  * cases.
  */
-#define arch_atomic64_dec_and_test arch_atomic64_dec_and_test
 static inline bool arch_atomic64_dec_and_test(atomic64_t *v)
 {
         GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, "%0", e);
 }
+#define arch_atomic64_dec_and_test arch_atomic64_dec_and_test
 
 /**
  * arch_atomic64_inc_and_test - increment and test
@@ -127,11 +127,11 @@ static inline bool arch_atomic64_dec_and_test(atomic64_t *v)
  * and returns true if the result is zero, or false for all
  * other cases.
  */
-#define arch_atomic64_inc_and_test arch_atomic64_inc_and_test
 static inline bool arch_atomic64_inc_and_test(atomic64_t *v)
 {
         GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, "%0", e);
 }
+#define arch_atomic64_inc_and_test arch_atomic64_inc_and_test
 
 /**
  * arch_atomic64_add_negative - add and test if negative
@@ -142,11 +142,11 @@ static inline bool arch_atomic64_inc_and_test(atomic64_t *v)
  * if the result is negative, or false when
  * result is greater than or equal to zero.
  */
-#define arch_atomic64_add_negative arch_atomic64_add_negative
 static inline bool arch_atomic64_add_negative(long i, atomic64_t *v)
 {
         GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, "er", i, "%0", s);
 }
+#define arch_atomic64_add_negative arch_atomic64_add_negative
 
 /**
  * arch_atomic64_add_return - add and return
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index c14f2a74b2be..15450a675031 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -33,7 +33,8 @@ extern inline unsigned long native_save_fl(void)
         return flags;
 }
 
-static inline void native_restore_fl(unsigned long flags)
+extern inline void native_restore_fl(unsigned long flags);
+extern inline void native_restore_fl(unsigned long flags)
 {
         asm volatile("push %0 ; popf"
                      : /* no output */
diff --git a/arch/x86/include/asm/kdebug.h b/arch/x86/include/asm/kdebug.h
index 395c9631e000..75f1e35e7c15 100644
--- a/arch/x86/include/asm/kdebug.h
+++ b/arch/x86/include/asm/kdebug.h
@@ -22,10 +22,20 @@ enum die_val {
         DIE_NMIUNKNOWN,
 };
 
+enum show_regs_mode {
+        SHOW_REGS_SHORT,
+        /*
+         * For when userspace crashed, but we don't think it's our fault, and
+         * therefore don't print kernel registers.
+         */
+        SHOW_REGS_USER,
+        SHOW_REGS_ALL
+};
+
 extern void die(const char *, struct pt_regs *,long);
 extern int __must_check __die(const char *, struct pt_regs *, long);
 extern void show_stack_regs(struct pt_regs *regs);
-extern void __show_regs(struct pt_regs *regs, int all);
+extern void __show_regs(struct pt_regs *regs, enum show_regs_mode);
 extern void show_iret_regs(struct pt_regs *regs);
 extern unsigned long oops_begin(void);
 extern void oops_end(unsigned long, struct pt_regs *, int signr);
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 00ddb0c9e612..8e90488c3d56 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1237,19 +1237,12 @@ enum emulation_result {
 #define EMULTYPE_NO_DECODE          (1 << 0)
 #define EMULTYPE_TRAP_UD            (1 << 1)
 #define EMULTYPE_SKIP               (1 << 2)
-#define EMULTYPE_RETRY              (1 << 3)
-#define EMULTYPE_NO_REEXECUTE       (1 << 4)
-#define EMULTYPE_NO_UD_ON_FAIL      (1 << 5)
-#define EMULTYPE_VMWARE             (1 << 6)
-int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2,
-                            int emulation_type, void *insn, int insn_len);
-
-static inline int emulate_instruction(struct kvm_vcpu *vcpu,
-                        int emulation_type)
-{
-        return x86_emulate_instruction(vcpu, 0,
-                        emulation_type | EMULTYPE_NO_REEXECUTE, NULL, 0);
-}
+#define EMULTYPE_ALLOW_RETRY        (1 << 3)
+#define EMULTYPE_NO_UD_ON_FAIL      (1 << 4)
+#define EMULTYPE_VMWARE             (1 << 5)
+int kvm_emulate_instruction(struct kvm_vcpu *vcpu, int emulation_type);
+int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu,
+                                        void *insn, int insn_len);
 
 void kvm_enable_efer_bits(u64);
 bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer);
@@ -1450,7 +1443,6 @@ asmlinkage void kvm_spurious_fault(void);
         ____kvm_handle_fault_on_reboot(insn, "")
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end);
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
@@ -1463,7 +1455,7 @@ void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event);
 void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu);
 
 int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
-                    unsigned long ipi_bitmap_high, int min,
+                    unsigned long ipi_bitmap_high, u32 min,
                     unsigned long icr, int op_64_bit);
 
 u64 kvm_get_arch_capabilities(void);
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index a564084c6141..f8b1ad2c3828 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -2,6 +2,8 @@
 #ifndef _ASM_X86_PGTABLE_3LEVEL_H
 #define _ASM_X86_PGTABLE_3LEVEL_H
 
+#include <asm/atomic64_32.h>
+
 /*
  * Intel Physical Address Extension (PAE) Mode - three-level page
  * tables on PPro+ CPUs.
@@ -150,10 +152,7 @@ static inline pte_t native_ptep_get_and_clear(pte_t *ptep)
 {
         pte_t res;
 
-        /* xchg acts as a barrier before the setting of the high bits */
-        res.pte_low = xchg(&ptep->pte_low, 0);
-        res.pte_high = ptep->pte_high;
-        ptep->pte_high = 0;
+        res.pte = (pteval_t)arch_atomic64_xchg((atomic64_t *)ptep, 0);
 
         return res;
 }
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index e4ffa565a69f..690c0307afed 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -1195,7 +1195,7 @@ static inline pmd_t pmdp_establish(struct vm_area_struct *vma,
                 return xchg(pmdp, pmd);
         } else {
                 pmd_t old = *pmdp;
-                *pmdp = pmd;
+                WRITE_ONCE(*pmdp, pmd);
                 return old;
         }
 }
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index f773d5e6c8cc..ce2b59047cb8 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -55,15 +55,15 @@ struct mm_struct;
 void set_pte_vaddr_p4d(p4d_t *p4d_page, unsigned long vaddr, pte_t new_pte);
 void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte);
 
-static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr,
-                                    pte_t *ptep)
+static inline void native_set_pte(pte_t *ptep, pte_t pte)
 {
-        *ptep = native_make_pte(0);
+        WRITE_ONCE(*ptep, pte);
 }
 
-static inline void native_set_pte(pte_t *ptep, pte_t pte)
+static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr,
+                                    pte_t *ptep)
 {
-        *ptep = pte;
+        native_set_pte(ptep, native_make_pte(0));
 }
 
 static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
@@ -73,7 +73,7 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
 
 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
 {
-        *pmdp = pmd;
+        WRITE_ONCE(*pmdp, pmd);
 }
 
 static inline void native_pmd_clear(pmd_t *pmd)
@@ -109,7 +109,7 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
 
 static inline void native_set_pud(pud_t *pudp, pud_t pud)
 {
-        *pudp = pud;
+        WRITE_ONCE(*pudp, pud);
 }
 
 static inline void native_pud_clear(pud_t *pud)
@@ -137,13 +137,13 @@ static inline void native_set_p4d(p4d_t *p4dp, p4d_t p4d)
         pgd_t pgd;
 
         if (pgtable_l5_enabled() || !IS_ENABLED(CONFIG_PAGE_TABLE_ISOLATION)) {
-                *p4dp = p4d;
+                WRITE_ONCE(*p4dp, p4d);
                 return;
         }
 
         pgd = native_make_pgd(native_p4d_val(p4d));
         pgd = pti_set_user_pgtbl((pgd_t *)p4dp, pgd);
-        *p4dp = native_make_p4d(native_pgd_val(pgd));
+        WRITE_ONCE(*p4dp, native_make_p4d(native_pgd_val(pgd)));
 }
 
 static inline void native_p4d_clear(p4d_t *p4d)
@@ -153,7 +153,7 @@ static inline void native_p4d_clear(p4d_t *p4d)
 
 static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
 {
-        *pgdp = pti_set_user_pgtbl(pgdp, pgd);
+        WRITE_ONCE(*pgdp, pti_set_user_pgtbl(pgdp, pgd));
 }
 
 static inline void native_pgd_clear(pgd_t *pgd)
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index c24297268ebc..d53c54b842da 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -132,6 +132,8 @@ struct cpuinfo_x86 {
         /* Index into per_cpu list: */
         u16                     cpu_index;
         u32                     microcode;
+        /* Address space bits used by the cache internally */
+        u8                      x86_cache_bits;
         unsigned                initialized : 1;
 } __randomize_layout;
 
@@ -183,7 +185,7 @@ extern void cpu_detect(struct cpuinfo_x86 *c);
 
 static inline unsigned long long l1tf_pfn_limit(void)
 {
-        return BIT_ULL(boot_cpu_data.x86_phys_bits - 1 - PAGE_SHIFT);
+        return BIT_ULL(boot_cpu_data.x86_cache_bits - 1 - PAGE_SHIFT);
 }
 
 extern void early_cpu_init(void);
diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h
index 5f9012ff52ed..33d3c88a7225 100644
--- a/arch/x86/include/asm/signal.h
+++ b/arch/x86/include/asm/signal.h
@@ -39,6 +39,7 @@ extern void do_signal(struct pt_regs *regs);
 
 #define __ARCH_HAS_SA_RESTORER
 
+#include <asm/asm.h>
 #include <uapi/asm/sigcontext.h>
 
 #ifdef __i386__
@@ -86,9 +87,9 @@ static inline int __const_sigismember(sigset_t *set, int _sig)
 
 static inline int __gen_sigismember(sigset_t *set, int _sig)
 {
-        unsigned char ret;
-        asm("btl %2,%1\n\tsetc %0"
-            : "=qm"(ret) : "m"(*set), "Ir"(_sig-1) : "cc");
+        bool ret;
+        asm("btl %2,%1" CC_SET(c)
+            : CC_OUT(c) (ret) : "m"(*set), "Ir"(_sig-1));
         return ret;
 }
 
diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
index b6dc698f992a..f335aad404a4 100644
--- a/arch/x86/include/asm/stacktrace.h
+++ b/arch/x86/include/asm/stacktrace.h
@@ -111,6 +111,6 @@ static inline unsigned long caller_frame_pointer(void)
         return (unsigned long)frame;
 }
 
-void show_opcodes(u8 *rip, const char *loglvl);
+void show_opcodes(struct pt_regs *regs, const char *loglvl);
 void show_ip(struct pt_regs *regs, const char *loglvl);
 #endif /* _ASM_X86_STACKTRACE_H */
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index 29c9da6c62fc..58ce5288878e 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -175,8 +175,16 @@ struct tlb_state {
          * are on.  This means that it may not match current->active_mm,
          * which will contain the previous user mm when we're in lazy TLB
          * mode even if we've already switched back to swapper_pg_dir.
+         *
+         * During switch_mm_irqs_off(), loaded_mm will be set to
+         * LOADED_MM_SWITCHING during the brief interrupts-off window
+         * when CR3 and loaded_mm would otherwise be inconsistent.  This
+         * is for nmi_uaccess_okay()'s benefit.
          */
         struct mm_struct *loaded_mm;
+
+#define LOADED_MM_SWITCHING ((struct mm_struct *)1)
+
         u16 loaded_mm_asid;
         u16 next_asid;
         /* last user mm's ctx id */
@@ -246,6 +254,38 @@ struct tlb_state {
 };
 DECLARE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate);
 
+/*
+ * Blindly accessing user memory from NMI context can be dangerous
+ * if we're in the middle of switching the current user task or
+ * switching the loaded mm.  It can also be dangerous if we
+ * interrupted some kernel code that was temporarily using a
+ * different mm.
+ */
+static inline bool nmi_uaccess_okay(void)
+{
+        struct mm_struct *loaded_mm = this_cpu_read(cpu_tlbstate.loaded_mm);
+        struct mm_struct *current_mm = current->mm;
+
+        VM_WARN_ON_ONCE(!loaded_mm);
+
+        /*
+         * The condition we want to check is
+         * current_mm->pgd == __va(read_cr3_pa()).  This may be slow, though,
+         * if we're running in a VM with shadow paging, and nmi_uaccess_okay()
+         * is supposed to be reasonably fast.
+         *
+         * Instead, we check the almost equivalent but somewhat conservative
+         * condition below, and we rely on the fact that switch_mm_irqs_off()
+         * sets loaded_mm to LOADED_MM_SWITCHING before writing to CR3.
+         */
+        if (loaded_mm != current_mm)
+                return false;
+
+        VM_WARN_ON_ONCE(current_mm->pgd != __va(read_cr3_pa()));
+
+        return true;
+}
+
 /* Initialize cr4 shadow for this CPU. */
 static inline void cr4_init_shadow(void)
 {
diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h
index fb856c9f0449..53748541c487 100644
--- a/arch/x86/include/asm/vgtod.h
+++ b/arch/x86/include/asm/vgtod.h
@@ -93,7 +93,7 @@ static inline unsigned int __getcpu(void)
          *
          * If RDPID is available, use it.
          */
-        alternative_io ("lsl %[p],%[seg]",
+        alternative_io ("lsl %[seg],%[p]",
                         ".byte 0xf3,0x0f,0xc7,0xf8", /* RDPID %eax/rax */
                         X86_FEATURE_RDPID,
                         [p] "=a" (p), [seg] "r" (__PER_CPU_SEG));
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 014f214da581..b9d5e7c9ef43 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -684,8 +684,6 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode,
  * It means the size must be writable atomically and the address must be aligned
  * in a way that permits an atomic write. It also makes sure we fit on a single
  * page.
- *
- * Note: Must be called under text_mutex.
  */
 void *text_poke(void *addr, const void *opcode, size_t len)
 {
@@ -700,6 +698,8 @@ void *text_poke(void *addr, const void *opcode, size_t len)
          */
         BUG_ON(!after_bootmem);
 
+        lockdep_assert_held(&text_mutex);
+
         if (!core_kernel_text((unsigned long)addr)) {
                 pages[0] = vmalloc_to_page(addr);
                 pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
@@ -782,8 +782,6 @@ int poke_int3_handler(struct pt_regs *regs)
  *      - replace the first byte (int3) by the first byte of
  *        replacing opcode
  *      - sync cores
- *
- * Note: must be called under text_mutex.
  */
 void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
 {
@@ -792,6 +790,9 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
         bp_int3_handler = handler;
         bp_int3_addr = (u8 *)addr + sizeof(int3);
         bp_patching_in_progress = true;
+
+        lockdep_assert_held(&text_mutex);
+
         /*
          * Corresponding read barrier in int3 notifier for making sure the
          * in_progress and handler are correctly ordered wrt. patching.
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 9f148e3d45b4..7654febd5102 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -413,7 +413,7 @@ static int activate_managed(struct irq_data *irqd)
         if (WARN_ON_ONCE(cpumask_empty(vector_searchmask))) {
                 /* Something in the core code broke! Survive gracefully */
                 pr_err("Managed startup for irq %u, but no CPU\n", irqd->irq);
-                return EINVAL;
+                return -EINVAL;
         }
 
         ret = assign_managed_vector(irqd, vector_searchmask);
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 4c2313d0b9ca..40bdaea97fe7 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -668,6 +668,45 @@ EXPORT_SYMBOL_GPL(l1tf_mitigation);
 enum vmx_l1d_flush_state l1tf_vmx_mitigation = VMENTER_L1D_FLUSH_AUTO;
 EXPORT_SYMBOL_GPL(l1tf_vmx_mitigation);
 
+/*
+ * These CPUs all support 44bits physical address space internally in the
+ * cache but CPUID can report a smaller number of physical address bits.
+ *
+ * The L1TF mitigation uses the top most address bit for the inversion of
+ * non present PTEs. When the installed memory reaches into the top most
+ * address bit due to memory holes, which has been observed on machines
+ * which report 36bits physical address bits and have 32G RAM installed,
+ * then the mitigation range check in l1tf_select_mitigation() triggers.
+ * This is a false positive because the mitigation is still possible due to
+ * the fact that the cache uses 44bit internally. Use the cache bits
+ * instead of the reported physical bits and adjust them on the affected
+ * machines to 44bit if the reported bits are less than 44.
+ */
+static void override_cache_bits(struct cpuinfo_x86 *c)
+{
+        if (c->x86 != 6)
+                return;
+
+        switch (c->x86_model) {
+        case INTEL_FAM6_NEHALEM:
+        case INTEL_FAM6_WESTMERE:
+        case INTEL_FAM6_SANDYBRIDGE:
+        case INTEL_FAM6_IVYBRIDGE:
+        case INTEL_FAM6_HASWELL_CORE:
+        case INTEL_FAM6_HASWELL_ULT:
+        case INTEL_FAM6_HASWELL_GT3E:
+        case INTEL_FAM6_BROADWELL_CORE:
+        case INTEL_FAM6_BROADWELL_GT3E:
+        case INTEL_FAM6_SKYLAKE_MOBILE:
+        case INTEL_FAM6_SKYLAKE_DESKTOP:
+        case INTEL_FAM6_KABYLAKE_MOBILE:
+        case INTEL_FAM6_KABYLAKE_DESKTOP:
+                if (c->x86_cache_bits < 44)
+                        c->x86_cache_bits = 44;
+                break;
+        }
+}
+
 static void __init l1tf_select_mitigation(void)
 {
         u64 half_pa;
@@ -675,6 +714,8 @@ static void __init l1tf_select_mitigation(void)
         if (!boot_cpu_has_bug(X86_BUG_L1TF))
                 return;
 
+        override_cache_bits(&boot_cpu_data);
+
         switch (l1tf_mitigation) {
         case L1TF_MITIGATION_OFF:
         case L1TF_MITIGATION_FLUSH_NOWARN:
@@ -694,11 +735,6 @@ static void __init l1tf_select_mitigation(void)
         return;
 #endif
 
-        /*
-         * This is extremely unlikely to happen because almost all
-         * systems have far more MAX_PA/2 than RAM can be fit into
-         * DIMM slots.
-         */
         half_pa = (u64)l1tf_pfn_limit() << PAGE_SHIFT;
         if (e820__mapped_any(half_pa, ULLONG_MAX - half_pa, E820_TYPE_RAM)) {
                 pr_warn("System has more than MAX_PA/2 memory. L1TF mitigation not effective.\n");
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 84dee5ab745a..44c4ef3d989b 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -919,6 +919,7 @@ void get_cpu_address_sizes(struct cpuinfo_x86 *c)
         else if (cpu_has(c, X86_FEATURE_PAE) || cpu_has(c, X86_FEATURE_PSE36))
                 c->x86_phys_bits = 36;
 #endif
+        c->x86_cache_bits = c->x86_phys_bits;
 }
 
 static void identify_cpu_without_cpuid(struct cpuinfo_x86 *c)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 401e8c133108..fc3c07fe7df5 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -150,6 +150,9 @@ static bool bad_spectre_microcode(struct cpuinfo_x86 *c)
         if (cpu_has(c, X86_FEATURE_HYPERVISOR))
                 return false;
 
+        if (c->x86 != 6)
+                return false;
+
         for (i = 0; i < ARRAY_SIZE(spectre_bad_microcodes); i++) {
                 if (c->x86_model == spectre_bad_microcodes[i].model &&
                     c->x86_stepping == spectre_bad_microcodes[i].stepping)
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index 0624957aa068..07b5fc00b188 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -504,6 +504,7 @@ static enum ucode_state apply_microcode_amd(int cpu)
         struct microcode_amd *mc_amd;
         struct ucode_cpu_info *uci;
         struct ucode_patch *p;
+        enum ucode_state ret;
         u32 rev, dummy;
 
         BUG_ON(raw_smp_processor_id() != cpu);
@@ -521,9 +522,8 @@ static enum ucode_state apply_microcode_amd(int cpu)
 
         /* need to apply patch? */
         if (rev >= mc_amd->hdr.patch_id) {
-                c->microcode = rev;
-                uci->cpu_sig.rev = rev;
-                return UCODE_OK;
+                ret = UCODE_OK;
+                goto out;
         }
 
         if (__apply_microcode_amd(mc_amd)) {
@@ -531,13 +531,21 @@ static enum ucode_state apply_microcode_amd(int cpu)
                         cpu, mc_amd->hdr.patch_id);
                 return UCODE_ERROR;
         }
-        pr_info("CPU%d: new patch_level=0x%08x\n", cpu,
-                mc_amd->hdr.patch_id);
 
-        uci->cpu_sig.rev = mc_amd->hdr.patch_id;
-        c->microcode = mc_amd->hdr.patch_id;
+        rev = mc_amd->hdr.patch_id;
+        ret = UCODE_UPDATED;
+
+        pr_info("CPU%d: new patch_level=0x%08x\n", cpu, rev);
 
-        return UCODE_UPDATED;
+out:
+        uci->cpu_sig.rev = rev;
+        c->microcode     = rev;
+
+        /* Update boot_cpu_data's revision too, if we're on the BSP: */
+        if (c->cpu_index == boot_cpu_data.cpu_index)
+                boot_cpu_data.microcode = rev;
+
+        return ret;
 }
 
 static int install_equiv_cpu_table(const u8 *buf)
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
index 97ccf4c3b45b..16936a24795c 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -795,6 +795,7 @@ static enum ucode_state apply_microcode_intel(int cpu)
         struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
         struct cpuinfo_x86 *c = &cpu_data(cpu);
         struct microcode_intel *mc;
+        enum ucode_state ret;
         static int prev_rev;
         u32 rev;
 
@@ -817,9 +818,8 @@ static enum ucode_state apply_microcode_intel(int cpu)
          */
         rev = intel_get_microcode_revision();
         if (rev >= mc->hdr.rev) {
-                uci->cpu_sig.rev = rev;
-                c->microcode = rev;
-                return UCODE_OK;
+                ret = UCODE_OK;
+                goto out;
         }
 
         /*
@@ -848,10 +848,17 @@ static enum ucode_state apply_microcode_intel(int cpu)
                 prev_rev = rev;
         }
 
+        ret = UCODE_UPDATED;
+
+out:
         uci->cpu_sig.rev = rev;
-        c->microcode = rev;
+        c->microcode     = rev;
+
+        /* Update boot_cpu_data's revision too, if we're on the BSP: */
+        if (c->cpu_index == boot_cpu_data.cpu_index)
+                boot_cpu_data.microcode = rev;
 
-        return UCODE_UPDATED;
+        return ret;
 }
 
 static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 9c8652974f8e..2b5886401e5f 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -17,6 +17,7 @@
 #include <linux/bug.h>
 #include <linux/nmi.h>
 #include <linux/sysfs.h>
+#include <linux/kasan.h>
 
 #include <asm/cpu_entry_area.h>
 #include <asm/stacktrace.h>
@@ -89,14 +90,24 @@ static void printk_stack_address(unsigned long address, int reliable,
  * Thus, the 2/3rds prologue and 64 byte OPCODE_BUFSIZE is just a random
  * guesstimate in attempt to achieve all of the above.
  */
-void show_opcodes(u8 *rip, const char *loglvl)
+void show_opcodes(struct pt_regs *regs, const char *loglvl)
 {
 #define PROLOGUE_SIZE 42
 #define EPILOGUE_SIZE 21
 #define OPCODE_BUFSIZE (PROLOGUE_SIZE + 1 + EPILOGUE_SIZE)
         u8 opcodes[OPCODE_BUFSIZE];
+        unsigned long prologue = regs->ip - PROLOGUE_SIZE;
+        bool bad_ip;
 
-        if (probe_kernel_read(opcodes, rip - PROLOGUE_SIZE, OPCODE_BUFSIZE)) {
+        /*
+         * Make sure userspace isn't trying to trick us into dumping kernel
+         * memory by pointing the userspace instruction pointer at it.
+         */
+        bad_ip = user_mode(regs) &&
+                __chk_range_not_ok(prologue, OPCODE_BUFSIZE, TASK_SIZE_MAX);
+
+        if (bad_ip || probe_kernel_read(opcodes, (u8 *)prologue,
+                                        OPCODE_BUFSIZE)) {
                 printk("%sCode: Bad RIP value.\n", loglvl);
         } else {
                 printk("%sCode: %" __stringify(PROLOGUE_SIZE) "ph <%02x> %"
@@ -112,7 +123,7 @@ void show_ip(struct pt_regs *regs, const char *loglvl)
 #else
         printk("%sRIP: %04x:%pS\n", loglvl, (int)regs->cs, (void *)regs->ip);
 #endif
-        show_opcodes((u8 *)regs->ip, loglvl);
+        show_opcodes(regs, loglvl);
 }
 
 void show_iret_regs(struct pt_regs *regs)
@@ -135,7 +146,7 @@ static void show_regs_if_on_stack(struct stack_info *info, struct pt_regs *regs,
          * they can be printed in the right context.
          */
         if (!partial && on_stack(info, regs, sizeof(*regs))) {
-                __show_regs(regs, 0);
+                __show_regs(regs, SHOW_REGS_SHORT);
 
         } else if (partial && on_stack(info, (void *)regs + IRET_FRAME_OFFSET,
                                        IRET_FRAME_SIZE)) {
@@ -333,7 +344,7 @@ void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
         oops_exit();
 
         /* Executive summary in case the oops scrolled away */
-        __show_regs(&exec_summary_regs, true);
+        __show_regs(&exec_summary_regs, SHOW_REGS_ALL);
 
         if (!signr)
                 return;
@@ -346,7 +357,10 @@ void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
          * We're not going to return, but we might be on an IST stack or
          * have very little stack space left.  Rewind the stack and kill
          * the task.
+         * Before we rewind the stack, we have to tell KASAN that we're going to
+         * reuse the task stack and that existing poisons are invalid.
          */
+        kasan_unpoison_task_stack(current);
         rewind_stack_do_exit(signr);
 }
 NOKPROBE_SYMBOL(oops_end);
@@ -393,14 +407,9 @@ void die(const char *str, struct pt_regs *regs, long err)
 
 void show_regs(struct pt_regs *regs)
 {
-        bool all = true;
-
         show_regs_print_info(KERN_DEFAULT);
 
-        if (IS_ENABLED(CONFIG_X86_32))
-                all = !user_mode(regs);
-
-        __show_regs(regs, all);
+        __show_regs(regs, user_mode(regs) ? SHOW_REGS_USER : SHOW_REGS_ALL);
 
         /*
          * When in-kernel, we also print out the stack at the time of the fault..
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 2924fd447e61..5046a3c9dec2 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -59,7 +59,7 @@
 #include <asm/intel_rdt_sched.h>
 #include <asm/proto.h>
 
-void __show_regs(struct pt_regs *regs, int all)
+void __show_regs(struct pt_regs *regs, enum show_regs_mode mode)
 {
         unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
         unsigned long d0, d1, d2, d3, d6, d7;
@@ -85,7 +85,7 @@ void __show_regs(struct pt_regs *regs, int all)
         printk(KERN_DEFAULT "DS: %04x ES: %04x FS: %04x GS: %04x SS: %04x EFLAGS: %08lx\n",
                (u16)regs->ds, (u16)regs->es, (u16)regs->fs, gs, ss, regs->flags);
 
-        if (!all)
+        if (mode != SHOW_REGS_ALL)
                 return;
 
         cr0 = read_cr0();
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index a451bc374b9b..ea5ea850348d 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -62,7 +62,7 @@
 __visible DEFINE_PER_CPU(unsigned long, rsp_scratch);
 
 /* Prints also some state that isn't saved in the pt_regs */
-void __show_regs(struct pt_regs *regs, int all)
+void __show_regs(struct pt_regs *regs, enum show_regs_mode mode)
 {
         unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L, fs, gs, shadowgs;
         unsigned long d0, d1, d2, d3, d6, d7;
@@ -87,9 +87,17 @@ void __show_regs(struct pt_regs *regs, int all)
         printk(KERN_DEFAULT "R13: %016lx R14: %016lx R15: %016lx\n",
                regs->r13, regs->r14, regs->r15);
 
-        if (!all)
+        if (mode == SHOW_REGS_SHORT)
                 return;
 
+        if (mode == SHOW_REGS_USER) {
+                rdmsrl(MSR_FS_BASE, fs);
+                rdmsrl(MSR_KERNEL_GS_BASE, shadowgs);
+                printk(KERN_DEFAULT "FS:  %016lx GS:  %016lx\n",
+                       fs, shadowgs);
+                return;
+        }
+
         asm("movl %%ds,%0" : "=r" (ds));
         asm("movl %%cs,%0" : "=r" (cs));
         asm("movl %%es,%0" : "=r" (es));
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 1463468ba9a0..6490f618e096 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -1415,7 +1415,7 @@ static bool __init determine_cpu_tsc_frequencies(bool early)
 
 static unsigned long __init get_loops_per_jiffy(void)
 {
-        unsigned long lpj = tsc_khz * KHZ;
+        u64 lpj = (u64)tsc_khz * KHZ;
 
         do_div(lpj, HZ);
         return lpj;
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 0cefba28c864..17c0472c5b34 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -548,7 +548,7 @@ int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq,
 }
 
 int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
-                    unsigned long ipi_bitmap_high, int min,
+                    unsigned long ipi_bitmap_high, u32 min,
                     unsigned long icr, int op_64_bit)
 {
         int i;
@@ -571,18 +571,31 @@ int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
         rcu_read_lock();
         map = rcu_dereference(kvm->arch.apic_map);
 
+        if (min > map->max_apic_id)
+                goto out;
         /* Bits above cluster_size are masked in the caller.  */
-        for_each_set_bit(i, &ipi_bitmap_low, BITS_PER_LONG) {
-                vcpu = map->phys_map[min + i]->vcpu;
-                count += kvm_apic_set_irq(vcpu, &irq, NULL);
+        for_each_set_bit(i, &ipi_bitmap_low,
+                min((u32)BITS_PER_LONG, (map->max_apic_id - min + 1))) {
+                if (map->phys_map[min + i]) {
+                        vcpu = map->phys_map[min + i]->vcpu;
+                        count += kvm_apic_set_irq(vcpu, &irq, NULL);
+                }
         }
 
         min += cluster_size;
-        for_each_set_bit(i, &ipi_bitmap_high, BITS_PER_LONG) {
-                vcpu = map->phys_map[min + i]->vcpu;
-                count += kvm_apic_set_irq(vcpu, &irq, NULL);
+
+        if (min > map->max_apic_id)
+                goto out;
+
+        for_each_set_bit(i, &ipi_bitmap_high,
+                min((u32)BITS_PER_LONG, (map->max_apic_id - min + 1))) {
+                if (map->phys_map[min + i]) {
+                        vcpu = map->phys_map[min + i]->vcpu;
+                        count += kvm_apic_set_irq(vcpu, &irq, NULL);
+                }
         }
 
+out:
         rcu_read_unlock();
         return count;
 }
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index a282321329b5..e24ea7067373 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1853,11 +1853,6 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva,
         return kvm_handle_hva_range(kvm, hva, hva + 1, data, handler);
 }
 
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
-{
-        return kvm_handle_hva(kvm, hva, 0, kvm_unmap_rmapp);
-}
-
 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
 {
         return kvm_handle_hva_range(kvm, start, end, 0, kvm_unmap_rmapp);
@@ -5217,7 +5212,7 @@ static int make_mmu_pages_available(struct kvm_vcpu *vcpu)
 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
                        void *insn, int insn_len)
 {
-        int r, emulation_type = EMULTYPE_RETRY;
+        int r, emulation_type = 0;
         enum emulation_result er;
         bool direct = vcpu->arch.mmu.direct_map;
 
@@ -5230,10 +5225,8 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
         r = RET_PF_INVALID;
         if (unlikely(error_code & PFERR_RSVD_MASK)) {
                 r = handle_mmio_page_fault(vcpu, cr2, direct);
-                if (r == RET_PF_EMULATE) {
-                        emulation_type = 0;
+                if (r == RET_PF_EMULATE)
                         goto emulate;
-                }
         }
 
         if (r == RET_PF_INVALID) {
@@ -5260,8 +5253,19 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
                 return 1;
         }
 
-        if (mmio_info_in_cache(vcpu, cr2, direct))
-                emulation_type = 0;
+        /*
+         * vcpu->arch.mmu.page_fault returned RET_PF_EMULATE, but we can still
+         * optimistically try to just unprotect the page and let the processor
+         * re-execute the instruction that caused the page fault.  Do not allow
+         * retrying MMIO emulation, as it's not only pointless but could also
+         * cause us to enter an infinite loop because the processor will keep
+         * faulting on the non-existent MMIO address.  Retrying an instruction
+         * from a nested guest is also pointless and dangerous as we are only
+         * explicitly shadowing L1's page tables, i.e. unprotecting something
+         * for L1 isn't going to magically fix whatever issue cause L2 to fail.
+         */
+        if (!mmio_info_in_cache(vcpu, cr2, direct) && !is_guest_mode(vcpu))
+                emulation_type = EMULTYPE_ALLOW_RETRY;
 emulate:
         /*
          * On AMD platforms, under certain conditions insn_len may be zero on #NPF.
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 6276140044d0..89c4c5aa15f1 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -776,7 +776,7 @@ static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
         }
 
         if (!svm->next_rip) {
-                if (emulate_instruction(vcpu, EMULTYPE_SKIP) !=
+                if (kvm_emulate_instruction(vcpu, EMULTYPE_SKIP) !=
                                 EMULATE_DONE)
                         printk(KERN_DEBUG "%s: NOP\n", __func__);
                 return;
@@ -2715,7 +2715,7 @@ static int gp_interception(struct vcpu_svm *svm)
 
         WARN_ON_ONCE(!enable_vmware_backdoor);
 
-        er = emulate_instruction(vcpu,
+        er = kvm_emulate_instruction(vcpu,
                 EMULTYPE_VMWARE | EMULTYPE_NO_UD_ON_FAIL);
         if (er == EMULATE_USER_EXIT)
                 return 0;
@@ -2819,7 +2819,7 @@ static int io_interception(struct vcpu_svm *svm)
         string = (io_info & SVM_IOIO_STR_MASK) != 0;
         in = (io_info & SVM_IOIO_TYPE_MASK) != 0;
         if (string)
-                return emulate_instruction(vcpu, 0) == EMULATE_DONE;
+                return kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE;
 
         port = io_info >> 16;
         size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT;
@@ -3861,7 +3861,7 @@ static int iret_interception(struct vcpu_svm *svm)
 static int invlpg_interception(struct vcpu_svm *svm)
 {
         if (!static_cpu_has(X86_FEATURE_DECODEASSISTS))
-                return emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE;
+                return kvm_emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE;
 
         kvm_mmu_invlpg(&svm->vcpu, svm->vmcb->control.exit_info_1);
         return kvm_skip_emulated_instruction(&svm->vcpu);
@@ -3869,13 +3869,13 @@ static int invlpg_interception(struct vcpu_svm *svm)
 
 static int emulate_on_interception(struct vcpu_svm *svm)
 {
-        return emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE;
+        return kvm_emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE;
 }
 
 static int rsm_interception(struct vcpu_svm *svm)
 {
-        return x86_emulate_instruction(&svm->vcpu, 0, 0,
-                                       rsm_ins_bytes, 2) == EMULATE_DONE;
+        return kvm_emulate_instruction_from_buffer(&svm->vcpu,
+                                        rsm_ins_bytes, 2) == EMULATE_DONE;
 }
 
 static int rdpmc_interception(struct vcpu_svm *svm)
@@ -4700,7 +4700,7 @@ static int avic_unaccelerated_access_interception(struct vcpu_svm *svm)
                 ret = avic_unaccel_trap_write(svm);
         } else {
                 /* Handling Fault */
-                ret = (emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE);
+                ret = (kvm_emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE);
         }
 
         return ret;
@@ -6747,7 +6747,7 @@ e_free:
 static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec)
 {
         unsigned long vaddr, vaddr_end, next_vaddr;
-        unsigned long dst_vaddr, dst_vaddr_end;
+        unsigned long dst_vaddr;
         struct page **src_p, **dst_p;
         struct kvm_sev_dbg debug;
         unsigned long n;
@@ -6763,7 +6763,6 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec)
         size = debug.len;
         vaddr_end = vaddr + size;
         dst_vaddr = debug.dst_uaddr;
-        dst_vaddr_end = dst_vaddr + size;
 
         for (; vaddr < vaddr_end; vaddr = next_vaddr) {
                 int len, s_off, d_off;
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 1d26f3c4985b..533a327372c8 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6983,7 +6983,7 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu,
          * Cause the #SS fault with 0 error code in VM86 mode.
          */
         if (((vec == GP_VECTOR) || (vec == SS_VECTOR)) && err_code == 0) {
-                if (emulate_instruction(vcpu, 0) == EMULATE_DONE) {
+                if (kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE) {
                         if (vcpu->arch.halt_request) {
                                 vcpu->arch.halt_request = 0;
                                 return kvm_vcpu_halt(vcpu);
@@ -7054,7 +7054,7 @@ static int handle_exception(struct kvm_vcpu *vcpu)
 
         if (!vmx->rmode.vm86_active && is_gp_fault(intr_info)) {
                 WARN_ON_ONCE(!enable_vmware_backdoor);
-                er = emulate_instruction(vcpu,
+                er = kvm_emulate_instruction(vcpu,
                         EMULTYPE_VMWARE | EMULTYPE_NO_UD_ON_FAIL);
                 if (er == EMULATE_USER_EXIT)
                         return 0;
@@ -7157,7 +7157,7 @@ static int handle_io(struct kvm_vcpu *vcpu)
         ++vcpu->stat.io_exits;
 
         if (string)
-                return emulate_instruction(vcpu, 0) == EMULATE_DONE;
+                return kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE;
 
         port = exit_qualification >> 16;
         size = (exit_qualification & 7) + 1;
@@ -7231,7 +7231,7 @@ static int handle_set_cr4(struct kvm_vcpu *vcpu, unsigned long val)
 static int handle_desc(struct kvm_vcpu *vcpu)
 {
         WARN_ON(!(vcpu->arch.cr4 & X86_CR4_UMIP));
-        return emulate_instruction(vcpu, 0) == EMULATE_DONE;
+        return kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE;
 }
 
 static int handle_cr(struct kvm_vcpu *vcpu)
@@ -7480,7 +7480,7 @@ static int handle_vmcall(struct kvm_vcpu *vcpu)
 
 static int handle_invd(struct kvm_vcpu *vcpu)
 {
-        return emulate_instruction(vcpu, 0) == EMULATE_DONE;
+        return kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE;
 }
 
 static int handle_invlpg(struct kvm_vcpu *vcpu)
@@ -7547,7 +7547,7 @@ static int handle_apic_access(struct kvm_vcpu *vcpu)
                         return kvm_skip_emulated_instruction(vcpu);
                 }
         }
-        return emulate_instruction(vcpu, 0) == EMULATE_DONE;
+        return kvm_emulate_instruction(vcpu, 0) == EMULATE_DONE;
 }
 
 static int handle_apic_eoi_induced(struct kvm_vcpu *vcpu)
@@ -7704,8 +7704,8 @@ static int handle_ept_misconfig(struct kvm_vcpu *vcpu)
                 if (!static_cpu_has(X86_FEATURE_HYPERVISOR))
                         return kvm_skip_emulated_instruction(vcpu);
                 else
-                        return x86_emulate_instruction(vcpu, gpa, EMULTYPE_SKIP,
-                                                       NULL, 0) == EMULATE_DONE;
+                        return kvm_emulate_instruction(vcpu, EMULTYPE_SKIP) ==
+                                                                EMULATE_DONE;
         }
 
         return kvm_mmu_page_fault(vcpu, gpa, PFERR_RSVD_MASK, NULL, 0);
@@ -7748,7 +7748,7 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu)
                 if (kvm_test_request(KVM_REQ_EVENT, vcpu))
                         return 1;
 
-                err = emulate_instruction(vcpu, 0);
+                err = kvm_emulate_instruction(vcpu, 0);
 
                 if (err == EMULATE_USER_EXIT) {
                         ++vcpu->stat.mmio_exits;
@@ -12537,8 +12537,11 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, u32 *exit_qual)
         struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
         bool from_vmentry = !!exit_qual;
         u32 dummy_exit_qual;
+        u32 vmcs01_cpu_exec_ctrl;
         int r = 0;
 
+        vmcs01_cpu_exec_ctrl = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
+
         enter_guest_mode(vcpu);
 
         if (!(vmcs12->vm_entry_controls & VM_ENTRY_LOAD_DEBUG_CONTROLS))
@@ -12575,6 +12578,25 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, u32 *exit_qual)
         }
 
         /*
+         * If L1 had a pending IRQ/NMI until it executed
+         * VMLAUNCH/VMRESUME which wasn't delivered because it was
+         * disallowed (e.g. interrupts disabled), L0 needs to
+         * evaluate if this pending event should cause an exit from L2
+         * to L1 or delivered directly to L2 (e.g. In case L1 don't
+         * intercept EXTERNAL_INTERRUPT).
+         *
+         * Usually this would be handled by L0 requesting a
+         * IRQ/NMI window by setting VMCS accordingly. However,
+         * this setting was done on VMCS01 and now VMCS02 is active
+         * instead. Thus, we force L0 to perform pending event
+         * evaluation by requesting a KVM_REQ_EVENT.
+         */
+        if (vmcs01_cpu_exec_ctrl &
+                (CPU_BASED_VIRTUAL_INTR_PENDING | CPU_BASED_VIRTUAL_NMI_PENDING)) {
+                kvm_make_request(KVM_REQ_EVENT, vcpu);
+        }
+
+        /*
          * Note no nested_vmx_succeed or nested_vmx_fail here. At this point
          * we are no longer running L1, and VMLAUNCH/VMRESUME has not yet
          * returned as far as L1 is concerned. It will only return (and set
@@ -13988,9 +14010,6 @@ static int vmx_set_nested_state(struct kvm_vcpu *vcpu,
             check_vmentry_postreqs(vcpu, vmcs12, &exit_qual))
                 return -EINVAL;
 
-        if (kvm_state->flags & KVM_STATE_NESTED_RUN_PENDING)
-                vmx->nested.nested_run_pending = 1;
-
         vmx->nested.dirty_vmcs12 = true;
         ret = enter_vmx_non_root_mode(vcpu, NULL);
         if (ret)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 506bd2b4b8bb..542f6315444d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4987,7 +4987,7 @@ int handle_ud(struct kvm_vcpu *vcpu)
                 emul_type = 0;
         }
 
-        er = emulate_instruction(vcpu, emul_type);
+        er = kvm_emulate_instruction(vcpu, emul_type);
         if (er == EMULATE_USER_EXIT)
                 return 0;
         if (er != EMULATE_DONE)
@@ -5870,7 +5870,10 @@ static bool reexecute_instruction(struct kvm_vcpu *vcpu, gva_t cr2,
         gpa_t gpa = cr2;
         kvm_pfn_t pfn;
 
-        if (emulation_type & EMULTYPE_NO_REEXECUTE)
+        if (!(emulation_type & EMULTYPE_ALLOW_RETRY))
+                return false;
+
+        if (WARN_ON_ONCE(is_guest_mode(vcpu)))
                 return false;
 
         if (!vcpu->arch.mmu.direct_map) {
@@ -5958,7 +5961,10 @@ static bool retry_instruction(struct x86_emulate_ctxt *ctxt,
          */
         vcpu->arch.last_retry_eip = vcpu->arch.last_retry_addr = 0;
 
-        if (!(emulation_type & EMULTYPE_RETRY))
+        if (!(emulation_type & EMULTYPE_ALLOW_RETRY))
+                return false;
+
+        if (WARN_ON_ONCE(is_guest_mode(vcpu)))
                 return false;
 
         if (x86_page_table_writing_insn(ctxt))
@@ -6276,7 +6282,19 @@ restart:
 
         return r;
 }
-EXPORT_SYMBOL_GPL(x86_emulate_instruction);
+
+int kvm_emulate_instruction(struct kvm_vcpu *vcpu, int emulation_type)
+{
+        return x86_emulate_instruction(vcpu, 0, emulation_type, NULL, 0);
+}
+EXPORT_SYMBOL_GPL(kvm_emulate_instruction);
+
+int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu,
+                                        void *insn, int insn_len)
+{
+        return x86_emulate_instruction(vcpu, 0, 0, insn, insn_len);
+}
+EXPORT_SYMBOL_GPL(kvm_emulate_instruction_from_buffer);
 
 static int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size,
                             unsigned short port)
@@ -7734,7 +7752,7 @@ static inline int complete_emulated_io(struct kvm_vcpu *vcpu)
 {
         int r;
         vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
-        r = emulate_instruction(vcpu, EMULTYPE_NO_DECODE);
+        r = kvm_emulate_instruction(vcpu, EMULTYPE_NO_DECODE);
         srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
         if (r != EMULATE_DONE)
                 return 0;
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index 257f27620bc2..67b9568613f3 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -274,6 +274,8 @@ int kvm_mtrr_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
 bool kvm_mtrr_check_gfn_range_consistency(struct kvm_vcpu *vcpu, gfn_t gfn,
                                           int page_num);
 bool kvm_vector_hashing_enabled(void);
+int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2,
+                            int emulation_type, void *insn, int insn_len);
 
 #define KVM_SUPPORTED_XCR0     (XFEATURE_MASK_FP | XFEATURE_MASK_SSE \
                                 | XFEATURE_MASK_YMM | XFEATURE_MASK_BNDREGS \
diff --git a/arch/x86/lib/usercopy.c b/arch/x86/lib/usercopy.c
index c8c6ad0d58b8..3f435d7fca5e 100644
--- a/arch/x86/lib/usercopy.c
+++ b/arch/x86/lib/usercopy.c
@@ -7,6 +7,8 @@
 #include <linux/uaccess.h>
 #include <linux/export.h>
 
+#include <asm/tlbflush.h>
+
 /*
  * We rely on the nested NMI work to allow atomic faults from the NMI path; the
  * nested NMI paths are careful to preserve CR2.
@@ -19,6 +21,9 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
         if (__range_not_ok(from, n, TASK_SIZE))
                 return n;
 
+        if (!nmi_uaccess_okay())
+                return n;
+
         /*
          * Even though this function is typically called from NMI/IRQ context
          * disable pagefaults so that its behaviour is consistent even when
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index b9123c497e0a..47bebfe6efa7 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -837,7 +837,7 @@ show_signal_msg(struct pt_regs *regs, unsigned long error_code,
 
         printk(KERN_CONT "\n");
 
-        show_opcodes((u8 *)regs->ip, loglvl);
+        show_opcodes(regs, loglvl);
 }
 
 static void
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 8d6c34fe49be..51a5a69ecac9 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -1420,6 +1420,29 @@ static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias)
         return 0;
 }
 
+/*
+ * Machine check recovery code needs to change cache mode of poisoned
+ * pages to UC to avoid speculative access logging another error. But
+ * passing the address of the 1:1 mapping to set_memory_uc() is a fine
+ * way to encourage a speculative access. So we cheat and flip the top
+ * bit of the address. This works fine for the code that updates the
+ * page tables. But at the end of the process we need to flush the cache
+ * and the non-canonical address causes a #GP fault when used by the
+ * CLFLUSH instruction.
+ *
+ * But in the common case we already have a canonical address. This code
+ * will fix the top bit if needed and is a no-op otherwise.
+ */
+static inline unsigned long make_addr_canonical_again(unsigned long addr)
+{
+#ifdef CONFIG_X86_64
+        return (long)(addr << 1) >> 1;
+#else
+        return addr;
+#endif
+}
+
+
 static int change_page_attr_set_clr(unsigned long *addr, int numpages,
                                     pgprot_t mask_set, pgprot_t mask_clr,
                                     int force_split, int in_flag,
@@ -1465,7 +1488,7 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
                  * Save address for cache flush. *addr is modified in the call
                  * to __change_page_attr_set_clr() below.
                  */
-                baddr = *addr;
+                baddr = make_addr_canonical_again(*addr);
         }
 
         /* Must avoid aliasing mappings in the highmem code */
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index e848a4811785..ae394552fb94 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -269,7 +269,7 @@ static void mop_up_one_pmd(struct mm_struct *mm, pgd_t *pgdp)
         if (pgd_val(pgd) != 0) {
                 pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);
 
-                *pgdp = native_make_pgd(0);
+                pgd_clear(pgdp);
 
                 paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT);
                 pmd_free(mm, pmd);
@@ -494,7 +494,7 @@ int ptep_set_access_flags(struct vm_area_struct *vma,
         int changed = !pte_same(*ptep, entry);
 
         if (changed && dirty)
-                *ptep = entry;
+                set_pte(ptep, entry);
 
         return changed;
 }
@@ -509,7 +509,7 @@ int pmdp_set_access_flags(struct vm_area_struct *vma,
         VM_BUG_ON(address & ~HPAGE_PMD_MASK);
 
         if (changed && dirty) {
-                *pmdp = entry;
+                set_pmd(pmdp, entry);
                 /*
                  * We had a write-protection fault here and changed the pmd
                  * to to more permissive. No need to flush the TLB for that,
@@ -529,7 +529,7 @@ int pudp_set_access_flags(struct vm_area_struct *vma, unsigned long address,
         VM_BUG_ON(address & ~HPAGE_PUD_MASK);
 
         if (changed && dirty) {
-                *pudp = entry;
+                set_pud(pudp, entry);
                 /*
                  * We had a write-protection fault here and changed the pud
                  * to to more permissive. No need to flush the TLB for that,
diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c
index 31341ae7309f..c1fc1ae6b429 100644
--- a/arch/x86/mm/pti.c
+++ b/arch/x86/mm/pti.c
@@ -248,7 +248,7 @@ static pmd_t *pti_user_pagetable_walk_pmd(unsigned long address)
  *
  * Returns a pointer to a PTE on success, or NULL on failure.
  */
-static __init pte_t *pti_user_pagetable_walk_pte(unsigned long address)
+static pte_t *pti_user_pagetable_walk_pte(unsigned long address)
 {
         gfp_t gfp = (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
         pmd_t *pmd;
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 9517d1b2a281..e96b99eb800c 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -305,6 +305,10 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
 
                 choose_new_asid(next, next_tlb_gen, &new_asid, &need_flush);
 
+                /* Let nmi_uaccess_okay() know that we're changing CR3. */
+                this_cpu_write(cpu_tlbstate.loaded_mm, LOADED_MM_SWITCHING);
+                barrier();
+
                 if (need_flush) {
                         this_cpu_write(cpu_tlbstate.ctxs[new_asid].ctx_id, next->context.ctx_id);
                         this_cpu_write(cpu_tlbstate.ctxs[new_asid].tlb_gen, next_tlb_gen);
@@ -335,6 +339,9 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
                 if (next != &init_mm)
                         this_cpu_write(cpu_tlbstate.last_ctx_id, next->context.ctx_id);
 
+                /* Make sure we write CR3 before loaded_mm. */
+                barrier();
+
                 this_cpu_write(cpu_tlbstate.loaded_mm, next);
                 this_cpu_write(cpu_tlbstate.loaded_mm_asid, new_asid);
         }
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 324b93328b37..05ca14222463 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -85,14 +85,10 @@ pgd_t * __init efi_call_phys_prolog(void)
 
 void __init efi_call_phys_epilog(pgd_t *save_pgd)
 {
-        struct desc_ptr gdt_descr;
-
-        gdt_descr.address = (unsigned long)get_cpu_gdt_rw(0);
-        gdt_descr.size = GDT_SIZE - 1;
-        load_gdt(&gdt_descr);
-
         load_cr3(save_pgd);
         __flush_tlb_all();
+
+        load_fixmap_gdt(0);
 }
 
 void __init efi_runtime_update_mappings(void)
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 45b700ac5fe7..2fe5c9b1816b 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -435,14 +435,13 @@ static void xen_set_pud(pud_t *ptr, pud_t val)
 static void xen_set_pte_atomic(pte_t *ptep, pte_t pte)
 {
         trace_xen_mmu_set_pte_atomic(ptep, pte);
-        set_64bit((u64 *)ptep, native_pte_val(pte));
+        __xen_set_pte(ptep, pte);
 }
 
 static void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
         trace_xen_mmu_pte_clear(mm, addr, ptep);
-        if (!xen_batched_set_pte(ptep, native_make_pte(0)))
-                native_pte_clear(mm, addr, ptep);
+        __xen_set_pte(ptep, native_make_pte(0));
 }
 
 static void xen_pmd_clear(pmd_t *pmdp)
@@ -1570,7 +1569,7 @@ static void __init xen_set_pte_init(pte_t *ptep, pte_t pte)
                 pte = __pte_ma(((pte_val_ma(*ptep) & _PAGE_RW) | ~_PAGE_RW) &
                                pte_val_ma(pte));
 #endif
-        native_set_pte(ptep, pte);
+        __xen_set_pte(ptep, pte);
 }
 
 /* Early in boot, while setting up the initial pagetable, assume
@@ -2061,7 +2060,6 @@ void __init xen_relocate_p2m(void)
         pud_t *pud;
         pgd_t *pgd;
         unsigned long *new_p2m;
-        int save_pud;
 
         size = PAGE_ALIGN(xen_start_info->nr_pages * sizeof(unsigned long));
         n_pte = roundup(size, PAGE_SIZE) >> PAGE_SHIFT;
@@ -2091,7 +2089,6 @@ void __init xen_relocate_p2m(void)
 
         pgd = __va(read_cr3_pa());
         new_p2m = (unsigned long *)(2 * PGDIR_SIZE);
-        save_pud = n_pud;
         for (idx_pud = 0; idx_pud < n_pud; idx_pud++) {
                 pud = early_memremap(pud_phys, PAGE_SIZE);
                 clear_page(pud);
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 58c6efa9f9a9..9fe5952d117d 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -275,9 +275,9 @@ static void bfqg_and_blkg_get(struct bfq_group *bfqg)
 
 void bfqg_and_blkg_put(struct bfq_group *bfqg)
 {
-        bfqg_put(bfqg);
-
         blkg_put(bfqg_to_blkg(bfqg));
+
+        bfqg_put(bfqg);
 }
 
 /* @stats = 0 */
diff --git a/block/bio.c b/block/bio.c
index b12966e415d3..8c680a776171 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -2015,7 +2015,8 @@ int bio_associate_blkg(struct bio *bio, struct blkcg_gq *blkg)
 {
         if (unlikely(bio->bi_blkg))
                 return -EBUSY;
-        blkg_get(blkg);
+        if (!blkg_try_get(blkg))
+                return -ENODEV;
         bio->bi_blkg = blkg;
         return 0;
 }
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 694595b29b8f..c19f9078da1e 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -310,28 +310,11 @@ struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg,
         }
 }
 
-static void blkg_pd_offline(struct blkcg_gq *blkg)
-{
-        int i;
-
-        lockdep_assert_held(blkg->q->queue_lock);
-        lockdep_assert_held(&blkg->blkcg->lock);
-
-        for (i = 0; i < BLKCG_MAX_POLS; i++) {
-                struct blkcg_policy *pol = blkcg_policy[i];
-
-                if (blkg->pd[i] && !blkg->pd[i]->offline &&
-                    pol->pd_offline_fn) {
-                        pol->pd_offline_fn(blkg->pd[i]);
-                        blkg->pd[i]->offline = true;
-                }
-        }
-}
-
 static void blkg_destroy(struct blkcg_gq *blkg)
 {
         struct blkcg *blkcg = blkg->blkcg;
         struct blkcg_gq *parent = blkg->parent;
+        int i;
 
         lockdep_assert_held(blkg->q->queue_lock);
         lockdep_assert_held(&blkcg->lock);
@@ -340,6 +323,13 @@ static void blkg_destroy(struct blkcg_gq *blkg)
         WARN_ON_ONCE(list_empty(&blkg->q_node));
         WARN_ON_ONCE(hlist_unhashed(&blkg->blkcg_node));
 
+        for (i = 0; i < BLKCG_MAX_POLS; i++) {
+                struct blkcg_policy *pol = blkcg_policy[i];
+
+                if (blkg->pd[i] && pol->pd_offline_fn)
+                        pol->pd_offline_fn(blkg->pd[i]);
+        }
+
         if (parent) {
                 blkg_rwstat_add_aux(&parent->stat_bytes, &blkg->stat_bytes);
                 blkg_rwstat_add_aux(&parent->stat_ios, &blkg->stat_ios);
@@ -382,7 +372,6 @@ static void blkg_destroy_all(struct request_queue *q)
                 struct blkcg *blkcg = blkg->blkcg;
 
                 spin_lock(&blkcg->lock);
-                blkg_pd_offline(blkg);
                 blkg_destroy(blkg);
                 spin_unlock(&blkcg->lock);
         }
@@ -1053,59 +1042,64 @@ static struct cftype blkcg_legacy_files[] = {
         { }     /* terminate */
 };
 
+/*
+ * blkcg destruction is a three-stage process.
+ *
+ * 1. Destruction starts.  The blkcg_css_offline() callback is invoked
+ *    which offlines writeback.  Here we tie the next stage of blkg destruction
+ *    to the completion of writeback associated with the blkcg.  This lets us
+ *    avoid punting potentially large amounts of outstanding writeback to root
+ *    while maintaining any ongoing policies.  The next stage is triggered when
+ *    the nr_cgwbs count goes to zero.
+ *
+ * 2. When the nr_cgwbs count goes to zero, blkcg_destroy_blkgs() is called
+ *    and handles the destruction of blkgs.  Here the css reference held by
+ *    the blkg is put back eventually allowing blkcg_css_free() to be called.
+ *    This work may occur in cgwb_release_workfn() on the cgwb_release
+ *    workqueue.  Any submitted ios that fail to get the blkg ref will be
+ *    punted to the root_blkg.
+ *
+ * 3. Once the blkcg ref count goes to zero, blkcg_css_free() is called.
+ *    This finally frees the blkcg.
+ */
+
 /**
  * blkcg_css_offline - cgroup css_offline callback
  * @css: css of interest
  *
- * This function is called when @css is about to go away and responsible
- * for offlining all blkgs pd and killing all wbs associated with @css.
- * blkgs pd offline should be done while holding both q and blkcg locks.
- * As blkcg lock is nested inside q lock, this function performs reverse
- * double lock dancing.
- *
- * This is the blkcg counterpart of ioc_release_fn().
+ * This function is called when @css is about to go away.  Here the cgwbs are
+ * offlined first and only once writeback associated with the blkcg has
+ * finished do we start step 2 (see above).
  */
 static void blkcg_css_offline(struct cgroup_subsys_state *css)
 {
         struct blkcg *blkcg = css_to_blkcg(css);
-        struct blkcg_gq *blkg;
-
-        spin_lock_irq(&blkcg->lock);
-
-        hlist_for_each_entry(blkg, &blkcg->blkg_list, blkcg_node) {
-                struct request_queue *q = blkg->q;
-
-                if (spin_trylock(q->queue_lock)) {
-                        blkg_pd_offline(blkg);
-                        spin_unlock(q->queue_lock);
-                } else {
-                        spin_unlock_irq(&blkcg->lock);
-                        cpu_relax();
-                        spin_lock_irq(&blkcg->lock);
-                }
-        }
-
-        spin_unlock_irq(&blkcg->lock);
 
+        /* this prevents anyone from attaching or migrating to this blkcg */
         wb_blkcg_offline(blkcg);
+
+        /* put the base cgwb reference allowing step 2 to be triggered */
+        blkcg_cgwb_put(blkcg);
 }
 
 /**
- * blkcg_destroy_all_blkgs - destroy all blkgs associated with a blkcg
+ * blkcg_destroy_blkgs - responsible for shooting down blkgs
  * @blkcg: blkcg of interest
  *
- * This function is called when blkcg css is about to free and responsible for
- * destroying all blkgs associated with @blkcg.
- * blkgs should be removed while holding both q and blkcg locks. As blkcg lock
+ * blkgs should be removed while holding both q and blkcg locks.  As blkcg lock
  * is nested inside q lock, this function performs reverse double lock dancing.
+ * Destroying the blkgs releases the reference held on the blkcg's css allowing
+ * blkcg_css_free to eventually be called.
+ *
+ * This is the blkcg counterpart of ioc_release_fn().
  */
-static void blkcg_destroy_all_blkgs(struct blkcg *blkcg)
+void blkcg_destroy_blkgs(struct blkcg *blkcg)
 {
         spin_lock_irq(&blkcg->lock);
+
         while (!hlist_empty(&blkcg->blkg_list)) {
                 struct blkcg_gq *blkg = hlist_entry(blkcg->blkg_list.first,
-                                                    struct blkcg_gq,
-                                                    blkcg_node);
+                                                struct blkcg_gq, blkcg_node);
                 struct request_queue *q = blkg->q;
 
                 if (spin_trylock(q->queue_lock)) {
@@ -1117,6 +1111,7 @@ static void blkcg_destroy_all_blkgs(struct blkcg *blkcg)
                         spin_lock_irq(&blkcg->lock);
                 }
         }
+
         spin_unlock_irq(&blkcg->lock);
 }
 
@@ -1125,8 +1120,6 @@ static void blkcg_css_free(struct cgroup_subsys_state *css)
         struct blkcg *blkcg = css_to_blkcg(css);
         int i;
 
-        blkcg_destroy_all_blkgs(blkcg);
-
         mutex_lock(&blkcg_pol_mutex);
 
         list_del(&blkcg->all_blkcgs_node);
@@ -1189,6 +1182,7 @@ blkcg_css_alloc(struct cgroup_subsys_state *parent_css)
         INIT_HLIST_HEAD(&blkcg->blkg_list);
 #ifdef CONFIG_CGROUP_WRITEBACK
         INIT_LIST_HEAD(&blkcg->cgwb_list);
+        refcount_set(&blkcg->cgwb_refcnt, 1);
 #endif
         list_add_tail(&blkcg->all_blkcgs_node, &all_blkcgs);
 
@@ -1480,11 +1474,8 @@ void blkcg_deactivate_policy(struct request_queue *q,
 
         list_for_each_entry(blkg, &q->blkg_list, q_node) {
                 if (blkg->pd[pol->plid]) {
-                        if (!blkg->pd[pol->plid]->offline &&
-                            pol->pd_offline_fn) {
+                        if (pol->pd_offline_fn)
                                 pol->pd_offline_fn(blkg->pd[pol->plid]);
-                                blkg->pd[pol->plid]->offline = true;
-                        }
                         pol->pd_free_fn(blkg->pd[pol->plid]);
                         blkg->pd[pol->plid] = NULL;
                 }
diff --git a/block/blk-core.c b/block/blk-core.c
index dee56c282efb..4dbc93f43b38 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2163,9 +2163,12 @@ static inline bool bio_check_ro(struct bio *bio, struct hd_struct *part)
 {
         const int op = bio_op(bio);
 
-        if (part->policy && (op_is_write(op) && !op_is_flush(op))) {
+        if (part->policy && op_is_write(op)) {
                 char b[BDEVNAME_SIZE];
 
+                if (op_is_flush(bio->bi_opf) && !bio_sectors(bio))
+                        return false;
+
                 WARN_ONCE(1,
                        "generic_make_request: Trying to write "
                         "to read-only block-device %s (partno %d)\n",
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index a3eede00d302..01d0620a4e4a 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -2129,8 +2129,9 @@ static inline void throtl_update_latency_buckets(struct throtl_data *td)
 static void blk_throtl_assoc_bio(struct throtl_grp *tg, struct bio *bio)
 {
 #ifdef CONFIG_BLK_DEV_THROTTLING_LOW
-        if (bio->bi_css)
-                bio_associate_blkg(bio, tg_to_blkg(tg));
+        /* fallback to root_blkg if we fail to get a blkg ref */
+        if (bio->bi_css && (bio_associate_blkg(bio, tg_to_blkg(tg)) == -ENODEV))
+                bio_associate_blkg(bio, bio->bi_disk->queue->root_blkg);
         bio_issue_init(&bio->bi_issue, bio_sectors(bio));
 #endif
 }
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 84507d3e9a98..8e20a0677dcf 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -123,16 +123,11 @@ static void rwb_wake_all(struct rq_wb *rwb)
         }
 }
 
-static void __wbt_done(struct rq_qos *rqos, enum wbt_flags wb_acct)
+static void wbt_rqw_done(struct rq_wb *rwb, struct rq_wait *rqw,
+                         enum wbt_flags wb_acct)
 {
-        struct rq_wb *rwb = RQWB(rqos);
-        struct rq_wait *rqw;
         int inflight, limit;
 
-        if (!(wb_acct & WBT_TRACKED))
-                return;
-
-        rqw = get_rq_wait(rwb, wb_acct);
         inflight = atomic_dec_return(&rqw->inflight);
 
         /*
@@ -166,10 +161,22 @@ static void __wbt_done(struct rq_qos *rqos, enum wbt_flags wb_acct)
                 int diff = limit - inflight;
 
                 if (!inflight || diff >= rwb->wb_background / 2)
-                        wake_up(&rqw->wait);
+                        wake_up_all(&rqw->wait);
         }
 }
 
+static void __wbt_done(struct rq_qos *rqos, enum wbt_flags wb_acct)
+{
+        struct rq_wb *rwb = RQWB(rqos);
+        struct rq_wait *rqw;
+
+        if (!(wb_acct & WBT_TRACKED))
+                return;
+
+        rqw = get_rq_wait(rwb, wb_acct);
+        wbt_rqw_done(rwb, rqw, wb_acct);
+}
+
 /*
  * Called on completion of a request. Note that it's also called when
  * a request is merged, when the request gets freed.
@@ -481,6 +488,34 @@ static inline unsigned int get_limit(struct rq_wb *rwb, unsigned long rw)
         return limit;
 }
 
+struct wbt_wait_data {
+        struct wait_queue_entry wq;
+        struct task_struct *task;
+        struct rq_wb *rwb;
+        struct rq_wait *rqw;
+        unsigned long rw;
+        bool got_token;
+};
+
+static int wbt_wake_function(struct wait_queue_entry *curr, unsigned int mode,
+                             int wake_flags, void *key)
+{
+        struct wbt_wait_data *data = container_of(curr, struct wbt_wait_data,
+                                                        wq);
+
+        /*
+         * If we fail to get a budget, return -1 to interrupt the wake up
+         * loop in __wake_up_common.
+         */
+        if (!rq_wait_inc_below(data->rqw, get_limit(data->rwb, data->rw)))
+                return -1;
+
+        data->got_token = true;
+        list_del_init(&curr->entry);
+        wake_up_process(data->task);
+        return 1;
+}
+
 /*
  * Block if we will exceed our limit, or if we are currently waiting for
  * the timer to kick off queuing again.
@@ -491,19 +526,40 @@ static void __wbt_wait(struct rq_wb *rwb, enum wbt_flags wb_acct,
         __acquires(lock)
 {
         struct rq_wait *rqw = get_rq_wait(rwb, wb_acct);
-        DECLARE_WAITQUEUE(wait, current);
+        struct wbt_wait_data data = {
+                .wq = {
+                        .func   = wbt_wake_function,
+                        .entry  = LIST_HEAD_INIT(data.wq.entry),
+                },
+                .task = current,
+                .rwb = rwb,
+                .rqw = rqw,
+                .rw = rw,
+        };
         bool has_sleeper;
 
         has_sleeper = wq_has_sleeper(&rqw->wait);
         if (!has_sleeper && rq_wait_inc_below(rqw, get_limit(rwb, rw)))
                 return;
 
-        add_wait_queue_exclusive(&rqw->wait, &wait);
+        prepare_to_wait_exclusive(&rqw->wait, &data.wq, TASK_UNINTERRUPTIBLE);
         do {
-                set_current_state(TASK_UNINTERRUPTIBLE);
+                if (data.got_token)
+                        break;
 
-                if (!has_sleeper && rq_wait_inc_below(rqw, get_limit(rwb, rw)))
+                if (!has_sleeper &&
+                    rq_wait_inc_below(rqw, get_limit(rwb, rw))) {
+                        finish_wait(&rqw->wait, &data.wq);
+
+                        /*
+                         * We raced with wbt_wake_function() getting a token,
+                         * which means we now have two. Put our local token
+                         * and wake anyone else potentially waiting for one.
+                         */
+                        if (data.got_token)
+                                wbt_rqw_done(rwb, rqw, wb_acct);
                         break;
+                }
 
                 if (lock) {
                         spin_unlock_irq(lock);
@@ -511,11 +567,11 @@ static void __wbt_wait(struct rq_wb *rwb, enum wbt_flags wb_acct,
                         spin_lock_irq(lock);
                 } else
                         io_schedule();
+
                 has_sleeper = false;
         } while (1);
 
-        __set_current_state(TASK_RUNNING);
-        remove_wait_queue(&rqw->wait, &wait);
+        finish_wait(&rqw->wait, &data.wq);
 }
 
 static inline bool wbt_should_throttle(struct rq_wb *rwb, struct bio *bio)
@@ -580,11 +636,6 @@ static void wbt_wait(struct rq_qos *rqos, struct bio *bio, spinlock_t *lock)
                 return;
         }
 
-        if (current_is_kswapd())
-                flags |= WBT_KSWAPD;
-        if (bio_op(bio) == REQ_OP_DISCARD)
-                flags |= WBT_DISCARD;
-
         __wbt_wait(rwb, flags, bio->bi_opf, lock);
 
         if (!blk_stat_is_active(rwb->cb))
diff --git a/block/bsg.c b/block/bsg.c
index db588add6ba6..9a442c23a715 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -37,7 +37,7 @@ struct bsg_device {
         struct request_queue *queue;
         spinlock_t lock;
         struct hlist_node dev_list;
-        atomic_t ref_count;
+        refcount_t ref_count;
         char name[20];
         int max_queue;
 };
@@ -252,7 +252,7 @@ static int bsg_put_device(struct bsg_device *bd)
 
         mutex_lock(&bsg_mutex);
 
-        if (!atomic_dec_and_test(&bd->ref_count)) {
+        if (!refcount_dec_and_test(&bd->ref_count)) {
                 mutex_unlock(&bsg_mutex);
                 return 0;
         }
@@ -290,7 +290,7 @@ static struct bsg_device *bsg_add_device(struct inode *inode,
 
         bd->queue = rq;
 
-        atomic_set(&bd->ref_count, 1);
+        refcount_set(&bd->ref_count, 1);
         hlist_add_head(&bd->dev_list, bsg_dev_idx_hash(iminor(inode)));
 
         strncpy(bd->name, dev_name(rq->bsg_dev.class_dev), sizeof(bd->name) - 1);
@@ -308,7 +308,7 @@ static struct bsg_device *__bsg_get_device(int minor, struct request_queue *q)
 
         hlist_for_each_entry(bd, bsg_dev_idx_hash(minor), dev_list) {
                 if (bd->queue == q) {
-                        atomic_inc(&bd->ref_count);
+                        refcount_inc(&bd->ref_count);
                         goto found;
                 }
         }
diff --git a/block/elevator.c b/block/elevator.c
index 5ea6e7d600e4..6a06b5d040e5 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -895,8 +895,7 @@ int elv_register(struct elevator_type *e)
         spin_lock(&elv_list_lock);
         if (elevator_find(e->elevator_name, e->uses_mq)) {
                 spin_unlock(&elv_list_lock);
-                if (e->icq_cache)
-                        kmem_cache_destroy(e->icq_cache);
+                kmem_cache_destroy(e->icq_cache);
                 return -EBUSY;
         }
         list_add_tail(&e->list, &elv_list);
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 9706613eecf9..bf64cfa30feb 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -879,7 +879,7 @@ static void acpi_lpss_dismiss(struct device *dev)
 #define LPSS_GPIODEF0_DMA_LLP           BIT(13)
 
 static DEFINE_MUTEX(lpss_iosf_mutex);
-static bool lpss_iosf_d3_entered;
+static bool lpss_iosf_d3_entered = true;
 
 static void lpss_iosf_enter_d3_state(void)
 {
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 292088fcc624..d2e29a19890d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -35,11 +35,11 @@
 #include <linux/delay.h>
 #ifdef CONFIG_X86
 #include <asm/mpspec.h>
+#include <linux/dmi.h>
 #endif
 #include <linux/acpi_iort.h>
 #include <linux/pci.h>
 #include <acpi/apei.h>
-#include <linux/dmi.h>
 #include <linux/suspend.h>
 
 #include "internal.h"
@@ -82,10 +82,6 @@ static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
         },
         {}
 };
-#else
-static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
-        {}
-};
 #endif
 
 /* --------------------------------------------------------------------------
@@ -1033,11 +1029,16 @@ void __init acpi_early_init(void)
 
         acpi_permanent_mmap = true;
 
+#ifdef CONFIG_X86
         /*
          * If the machine falls into the DMI check table,
-         * DSDT will be copied to memory
+         * DSDT will be copied to memory.
+         * Note that calling dmi_check_system() here on other architectures
+         * would not be OK because only x86 initializes dmi early enough.
+         * Thankfully only x86 systems need such quirks for now.
          */
         dmi_check_system(dsdt_dmi_table);
+#endif
 
         status = acpi_reallocate_root_table();
         if (ACPI_FAILURE(status)) {
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 172e32840256..599e01bcdef2 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -7394,4 +7394,4 @@ EXPORT_SYMBOL_GPL(ata_cable_unknown);
 EXPORT_SYMBOL_GPL(ata_cable_ignore);
 EXPORT_SYMBOL_GPL(ata_cable_sata);
 EXPORT_SYMBOL_GPL(ata_host_get);
-EXPORT_SYMBOL_GPL(ata_host_put);
\ No newline at end of file
+EXPORT_SYMBOL_GPL(ata_host_put);
diff --git a/drivers/ata/pata_ftide010.c b/drivers/ata/pata_ftide010.c
index 5d4b72e21161..569a4a662dcd 100644
--- a/drivers/ata/pata_ftide010.c
+++ b/drivers/ata/pata_ftide010.c
@@ -256,14 +256,12 @@ static struct ata_port_operations pata_ftide010_port_ops = {
         .qc_issue       = ftide010_qc_issue,
 };
 
-static struct ata_port_info ftide010_port_info[] = {
-        {
-                .flags          = ATA_FLAG_SLAVE_POSS,
-                .mwdma_mask     = ATA_MWDMA2,
-                .udma_mask      = ATA_UDMA6,
-                .pio_mask       = ATA_PIO4,
-                .port_ops       = &pata_ftide010_port_ops,
-        },
+static struct ata_port_info ftide010_port_info = {
+        .flags          = ATA_FLAG_SLAVE_POSS,
+        .mwdma_mask     = ATA_MWDMA2,
+        .udma_mask      = ATA_UDMA6,
+        .pio_mask       = ATA_PIO4,
+        .port_ops       = &pata_ftide010_port_ops,
 };
 
 #if IS_ENABLED(CONFIG_SATA_GEMINI)
@@ -349,6 +347,7 @@ static int pata_ftide010_gemini_cable_detect(struct ata_port *ap)
 }
 
 static int pata_ftide010_gemini_init(struct ftide010 *ftide,
+                                     struct ata_port_info *pi,
                                      bool is_ata1)
 {
         struct device *dev = ftide->dev;
@@ -373,7 +372,13 @@ static int pata_ftide010_gemini_init(struct ftide010 *ftide,
 
         /* Flag port as SATA-capable */
         if (gemini_sata_bridge_enabled(sg, is_ata1))
-                ftide010_port_info[0].flags |= ATA_FLAG_SATA;
+                pi->flags |= ATA_FLAG_SATA;
+
+        /* This device has broken DMA, only PIO works */
+        if (of_machine_is_compatible("itian,sq201")) {
+                pi->mwdma_mask = 0;
+                pi->udma_mask = 0;
+        }
 
         /*
          * We assume that a simple 40-wire cable is used in the PATA mode.
@@ -435,6 +440,7 @@ static int pata_ftide010_gemini_init(struct ftide010 *ftide,
 }
 #else
 static int pata_ftide010_gemini_init(struct ftide010 *ftide,
+                                     struct ata_port_info *pi,
                                      bool is_ata1)
 {
         return -ENOTSUPP;
@@ -446,7 +452,7 @@ static int pata_ftide010_probe(struct platform_device *pdev)
 {
         struct device *dev = &pdev->dev;
         struct device_node *np = dev->of_node;
-        const struct ata_port_info pi = ftide010_port_info[0];
+        struct ata_port_info pi = ftide010_port_info;
         const struct ata_port_info *ppi[] = { &pi, NULL };
         struct ftide010 *ftide;
         struct resource *res;
@@ -490,6 +496,7 @@ static int pata_ftide010_probe(struct platform_device *pdev)
                  * are ATA0. This will also set up the cable types.
                  */
                 ret = pata_ftide010_gemini_init(ftide,
+                                &pi,
                                 (res->start == 0x63400000));
                 if (ret)
                         goto err_dis_clk;
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index c8a1cb0b6136..817320c7c4c1 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -417,25 +417,23 @@ static ssize_t show_valid_zones(struct device *dev,
         int nid;
 
         /*
-         * The block contains more than one zone can not be offlined.
-         * This can happen e.g. for ZONE_DMA and ZONE_DMA32
-         */
-        if (!test_pages_in_a_zone(start_pfn, start_pfn + nr_pages, &valid_start_pfn, &valid_end_pfn))
-                return sprintf(buf, "none\n");
-
-        start_pfn = valid_start_pfn;
-        nr_pages = valid_end_pfn - start_pfn;
-
-        /*
          * Check the existing zone. Make sure that we do that only on the
          * online nodes otherwise the page_zone is not reliable
          */
         if (mem->state == MEM_ONLINE) {
+                /*
+                 * The block contains more than one zone can not be offlined.
+                 * This can happen e.g. for ZONE_DMA and ZONE_DMA32
+                 */
+                if (!test_pages_in_a_zone(start_pfn, start_pfn + nr_pages,
+                                          &valid_start_pfn, &valid_end_pfn))
+                        return sprintf(buf, "none\n");
+                start_pfn = valid_start_pfn;
                 strcat(buf, page_zone(pfn_to_page(start_pfn))->name);
                 goto out;
         }
 
-        nid = pfn_to_nid(start_pfn);
+        nid = mem->nid;
         default_zone = zone_for_pfn_range(MMOP_ONLINE_KEEP, nid, start_pfn, nr_pages);
         strcat(buf, default_zone->name);
 
diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index 8e2e4757adcb..5a42ae4078c2 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -185,7 +185,7 @@ EXPORT_SYMBOL_GPL(of_pm_clk_add_clk);
 int of_pm_clk_add_clks(struct device *dev)
 {
         struct clk **clks;
-        unsigned int i, count;
+        int i, count;
         int ret;
 
         if (!dev || !dev->of_node)
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 3863c00372bb..14a51254c3db 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -1239,6 +1239,9 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
         case NBD_SET_SOCK:
                 return nbd_add_socket(nbd, arg, false);
         case NBD_SET_BLKSIZE:
+                if (!arg || !is_power_of_2(arg) || arg < 512 ||
+                    arg > PAGE_SIZE)
+                        return -EINVAL;
                 nbd_size_set(nbd, arg,
                              div_s64(config->bytesize, arg));
                 return 0;
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 7915f3b03736..73ed5f3a862d 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -4207,11 +4207,13 @@ static ssize_t rbd_parent_show(struct device *dev,
 
                 count += sprintf(&buf[count], "%s"
                             "pool_id %llu\npool_name %s\n"
+                            "pool_ns %s\n"
                             "image_id %s\nimage_name %s\n"
                             "snap_id %llu\nsnap_name %s\n"
                             "overlap %llu\n",
                             !count ? "" : "\n", /* first? */
                             spec->pool_id, spec->pool_name,
+                            spec->pool_ns ?: "",
                             spec->image_id, spec->image_name ?: "(unknown)",
                             spec->snap_id, spec->snap_name,
                             rbd_dev->parent_overlap);
@@ -4584,47 +4586,177 @@ static int rbd_dev_v2_features(struct rbd_device *rbd_dev)
                                                 &rbd_dev->header.features);
 }
 
+struct parent_image_info {
+        u64             pool_id;
+        const char      *pool_ns;
+        const char      *image_id;
+        u64             snap_id;
+
+        bool            has_overlap;
+        u64             overlap;
+};
+
+/*
+ * The caller is responsible for @pii.
+ */
+static int decode_parent_image_spec(void **p, void *end,
+                                    struct parent_image_info *pii)
+{
+        u8 struct_v;
+        u32 struct_len;
+        int ret;
+
+        ret = ceph_start_decoding(p, end, 1, "ParentImageSpec",
+                                  &struct_v, &struct_len);
+        if (ret)
+                return ret;
+
+        ceph_decode_64_safe(p, end, pii->pool_id, e_inval);
+        pii->pool_ns = ceph_extract_encoded_string(p, end, NULL, GFP_KERNEL);
+        if (IS_ERR(pii->pool_ns)) {
+                ret = PTR_ERR(pii->pool_ns);
+                pii->pool_ns = NULL;
+                return ret;
+        }
+        pii->image_id = ceph_extract_encoded_string(p, end, NULL, GFP_KERNEL);
+        if (IS_ERR(pii->image_id)) {
+                ret = PTR_ERR(pii->image_id);
+                pii->image_id = NULL;
+                return ret;
+        }
+        ceph_decode_64_safe(p, end, pii->snap_id, e_inval);
+        return 0;
+
+e_inval:
+        return -EINVAL;
+}
+
+static int __get_parent_info(struct rbd_device *rbd_dev,
+                             struct page *req_page,
+                             struct page *reply_page,
+                             struct parent_image_info *pii)
+{
+        struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc;
+        size_t reply_len = PAGE_SIZE;
+        void *p, *end;
+        int ret;
+
+        ret = ceph_osdc_call(osdc, &rbd_dev->header_oid, &rbd_dev->header_oloc,
+                             "rbd", "parent_get", CEPH_OSD_FLAG_READ,
+                             req_page, sizeof(u64), reply_page, &reply_len);
+        if (ret)
+                return ret == -EOPNOTSUPP ? 1 : ret;
+
+        p = page_address(reply_page);
+        end = p + reply_len;
+        ret = decode_parent_image_spec(&p, end, pii);
+        if (ret)
+                return ret;
+
+        ret = ceph_osdc_call(osdc, &rbd_dev->header_oid, &rbd_dev->header_oloc,
+                             "rbd", "parent_overlap_get", CEPH_OSD_FLAG_READ,
+                             req_page, sizeof(u64), reply_page, &reply_len);
+        if (ret)
+                return ret;
+
+        p = page_address(reply_page);
+        end = p + reply_len;
+        ceph_decode_8_safe(&p, end, pii->has_overlap, e_inval);
+        if (pii->has_overlap)
+                ceph_decode_64_safe(&p, end, pii->overlap, e_inval);
+
+        return 0;
+
+e_inval:
+        return -EINVAL;
+}
+
+/*
+ * The caller is responsible for @pii.
+ */
+static int __get_parent_info_legacy(struct rbd_device *rbd_dev,
+                                    struct page *req_page,
+                                    struct page *reply_page,
+                                    struct parent_image_info *pii)
+{
+        struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc;
+        size_t reply_len = PAGE_SIZE;
+        void *p, *end;
+        int ret;
+
+        ret = ceph_osdc_call(osdc, &rbd_dev->header_oid, &rbd_dev->header_oloc,
+                             "rbd", "get_parent", CEPH_OSD_FLAG_READ,
+                             req_page, sizeof(u64), reply_page, &reply_len);
+        if (ret)
+                return ret;
+
+        p = page_address(reply_page);
+        end = p + reply_len;
+        ceph_decode_64_safe(&p, end, pii->pool_id, e_inval);
+        pii->image_id = ceph_extract_encoded_string(&p, end, NULL, GFP_KERNEL);
+        if (IS_ERR(pii->image_id)) {
+                ret = PTR_ERR(pii->image_id);
+                pii->image_id = NULL;
+                return ret;
+        }
+        ceph_decode_64_safe(&p, end, pii->snap_id, e_inval);
+        pii->has_overlap = true;
+        ceph_decode_64_safe(&p, end, pii->overlap, e_inval);
+
+        return 0;
+
+e_inval:
+        return -EINVAL;
+}
+
+static int get_parent_info(struct rbd_device *rbd_dev,
+                           struct parent_image_info *pii)
+{
+        struct page *req_page, *reply_page;
+        void *p;
+        int ret;
+
+        req_page = alloc_page(GFP_KERNEL);
+        if (!req_page)
+                return -ENOMEM;
+
+        reply_page = alloc_page(GFP_KERNEL);
+        if (!reply_page) {
+                __free_page(req_page);
+                return -ENOMEM;
+        }
+
+        p = page_address(req_page);
+        ceph_encode_64(&p, rbd_dev->spec->snap_id);
+        ret = __get_parent_info(rbd_dev, req_page, reply_page, pii);
+        if (ret > 0)
+                ret = __get_parent_info_legacy(rbd_dev, req_page, reply_page,
+                                               pii);
+
+        __free_page(req_page);
+        __free_page(reply_page);
+        return ret;
+}
+
 static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev)
 {
         struct rbd_spec *parent_spec;
-        size_t size;
-        void *reply_buf = NULL;
-        __le64 snapid;
-        void *p;
-        void *end;
-        u64 pool_id;
-        char *image_id;
-        u64 snap_id;
-        u64 overlap;
+        struct parent_image_info pii = { 0 };
         int ret;
 
         parent_spec = rbd_spec_alloc();
         if (!parent_spec)
                 return -ENOMEM;
 
-        size = sizeof (__le64) +                                /* pool_id */
-                sizeof (__le32) + RBD_IMAGE_ID_LEN_MAX +        /* image_id */
-                sizeof (__le64) +                               /* snap_id */
-                sizeof (__le64);                                /* overlap */
-        reply_buf = kmalloc(size, GFP_KERNEL);
-        if (!reply_buf) {
-                ret = -ENOMEM;
+        ret = get_parent_info(rbd_dev, &pii);
+        if (ret)
                 goto out_err;
-        }
 
-        snapid = cpu_to_le64(rbd_dev->spec->snap_id);
-        ret = rbd_obj_method_sync(rbd_dev, &rbd_dev->header_oid,
-                                  &rbd_dev->header_oloc, "get_parent",
-                                  &snapid, sizeof(snapid), reply_buf, size);
-        dout("%s: rbd_obj_method_sync returned %d\n", __func__, ret);
-        if (ret < 0)
-                goto out_err;
+        dout("%s pool_id %llu pool_ns %s image_id %s snap_id %llu has_overlap %d overlap %llu\n",
+             __func__, pii.pool_id, pii.pool_ns, pii.image_id, pii.snap_id,
+             pii.has_overlap, pii.overlap);
 
-        p = reply_buf;
-        end = reply_buf + ret;
-        ret = -ERANGE;
-        ceph_decode_64_safe(&p, end, pool_id, out_err);
-        if (pool_id == CEPH_NOPOOL) {
+        if (pii.pool_id == CEPH_NOPOOL || !pii.has_overlap) {
                 /*
                  * Either the parent never existed, or we have
                  * record of it but the image got flattened so it no
@@ -4633,6 +4765,10 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev)
                  * overlap to 0.  The effect of this is that all new
                  * requests will be treated as if the image had no
                  * parent.
+                 *
+                 * If !pii.has_overlap, the parent image spec is not
+                 * applicable.  It's there to avoid duplication in each
+                 * snapshot record.
                  */
                 if (rbd_dev->parent_overlap) {
                         rbd_dev->parent_overlap = 0;
@@ -4647,51 +4783,36 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev)
         /* The ceph file layout needs to fit pool id in 32 bits */
 
         ret = -EIO;
-        if (pool_id > (u64)U32_MAX) {
+        if (pii.pool_id > (u64)U32_MAX) {
                 rbd_warn(NULL, "parent pool id too large (%llu > %u)",
-                        (unsigned long long)pool_id, U32_MAX);
+                        (unsigned long long)pii.pool_id, U32_MAX);
                 goto out_err;
         }
 
-        image_id = ceph_extract_encoded_string(&p, end, NULL, GFP_KERNEL);
-        if (IS_ERR(image_id)) {
-                ret = PTR_ERR(image_id);
-                goto out_err;
-        }
-        ceph_decode_64_safe(&p, end, snap_id, out_err);
-        ceph_decode_64_safe(&p, end, overlap, out_err);
-
         /*
          * The parent won't change (except when the clone is
          * flattened, already handled that).  So we only need to
          * record the parent spec we have not already done so.
          */
         if (!rbd_dev->parent_spec) {
-                parent_spec->pool_id = pool_id;
-                parent_spec->image_id = image_id;
-                parent_spec->snap_id = snap_id;
-
-                /* TODO: support cloning across namespaces */
-                if (rbd_dev->spec->pool_ns) {
-                        parent_spec->pool_ns = kstrdup(rbd_dev->spec->pool_ns,
-                                                       GFP_KERNEL);
-                        if (!parent_spec->pool_ns) {
-                                ret = -ENOMEM;
-                                goto out_err;
-                        }
+                parent_spec->pool_id = pii.pool_id;
+                if (pii.pool_ns && *pii.pool_ns) {
+                        parent_spec->pool_ns = pii.pool_ns;
+                        pii.pool_ns = NULL;
                 }
+                parent_spec->image_id = pii.image_id;
+                pii.image_id = NULL;
+                parent_spec->snap_id = pii.snap_id;
 
                 rbd_dev->parent_spec = parent_spec;
                 parent_spec = NULL;     /* rbd_dev now owns this */
-        } else {
-                kfree(image_id);
         }
 
         /*
          * We always update the parent overlap.  If it's zero we issue
          * a warning, as we will proceed as if there was no parent.
          */
-        if (!overlap) {
+        if (!pii.overlap) {
                 if (parent_spec) {
                         /* refresh, careful to warn just once */
                         if (rbd_dev->parent_overlap)
@@ -4702,14 +4823,14 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev)
                         rbd_warn(rbd_dev, "clone is standalone (overlap 0)");
                 }
         }
-        rbd_dev->parent_overlap = overlap;
+        rbd_dev->parent_overlap = pii.overlap;
 
 out:
         ret = 0;
 out_err:
-        kfree(reply_buf);
+        kfree(pii.pool_ns);
+        kfree(pii.image_id);
         rbd_spec_put(parent_spec);
-
         return ret;
 }
 
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index b55b245e8052..fd1e19f1a49f 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -84,6 +84,18 @@ MODULE_PARM_DESC(max_persistent_grants,
                  "Maximum number of grants to map persistently");
 
 /*
+ * How long a persistent grant is allowed to remain allocated without being in
+ * use. The time is in seconds, 0 means indefinitely long.
+ */
+
+static unsigned int xen_blkif_pgrant_timeout = 60;
+module_param_named(persistent_grant_unused_seconds, xen_blkif_pgrant_timeout,
+                   uint, 0644);
+MODULE_PARM_DESC(persistent_grant_unused_seconds,
+                 "Time in seconds an unused persistent grant is allowed to "
+                 "remain allocated. Default is 60, 0 means unlimited.");
+
+/*
  * Maximum number of rings/queues blkback supports, allow as many queues as there
  * are CPUs if user has not specified a value.
  */
@@ -123,6 +135,13 @@ module_param(log_stats, int, 0644);
 /* Number of free pages to remove on each call to gnttab_free_pages */
 #define NUM_BATCH_FREE_PAGES 10
 
+static inline bool persistent_gnt_timeout(struct persistent_gnt *persistent_gnt)
+{
+        return xen_blkif_pgrant_timeout &&
+               (jiffies - persistent_gnt->last_used >=
+                HZ * xen_blkif_pgrant_timeout);
+}
+
 static inline int get_free_page(struct xen_blkif_ring *ring, struct page **page)
 {
         unsigned long flags;
@@ -236,8 +255,7 @@ static int add_persistent_gnt(struct xen_blkif_ring *ring,
                 }
         }
 
-        bitmap_zero(persistent_gnt->flags, PERSISTENT_GNT_FLAGS_SIZE);
-        set_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags);
+        persistent_gnt->active = true;
         /* Add new node and rebalance tree. */
         rb_link_node(&(persistent_gnt->node), parent, new);
         rb_insert_color(&(persistent_gnt->node), &ring->persistent_gnts);
@@ -261,11 +279,11 @@ static struct persistent_gnt *get_persistent_gnt(struct xen_blkif_ring *ring,
                 else if (gref > data->gnt)
                         node = node->rb_right;
                 else {
-                        if(test_bit(PERSISTENT_GNT_ACTIVE, data->flags)) {
+                        if (data->active) {
                                 pr_alert_ratelimited("requesting a grant already in use\n");
                                 return NULL;
                         }
-                        set_bit(PERSISTENT_GNT_ACTIVE, data->flags);
+                        data->active = true;
                         atomic_inc(&ring->persistent_gnt_in_use);
                         return data;
                 }
@@ -276,10 +294,10 @@ static struct persistent_gnt *get_persistent_gnt(struct xen_blkif_ring *ring,
 static void put_persistent_gnt(struct xen_blkif_ring *ring,
                                struct persistent_gnt *persistent_gnt)
 {
-        if(!test_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags))
+        if (!persistent_gnt->active)
                 pr_alert_ratelimited("freeing a grant already unused\n");
-        set_bit(PERSISTENT_GNT_WAS_ACTIVE, persistent_gnt->flags);
-        clear_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags);
+        persistent_gnt->last_used = jiffies;
+        persistent_gnt->active = false;
         atomic_dec(&ring->persistent_gnt_in_use);
 }
 
@@ -371,26 +389,26 @@ static void purge_persistent_gnt(struct xen_blkif_ring *ring)
         struct persistent_gnt *persistent_gnt;
         struct rb_node *n;
         unsigned int num_clean, total;
-        bool scan_used = false, clean_used = false;
+        bool scan_used = false;
         struct rb_root *root;
 
-        if (ring->persistent_gnt_c < xen_blkif_max_pgrants ||
-            (ring->persistent_gnt_c == xen_blkif_max_pgrants &&
-            !ring->blkif->vbd.overflow_max_grants)) {
-                goto out;
-        }
-
         if (work_busy(&ring->persistent_purge_work)) {
                 pr_alert_ratelimited("Scheduled work from previous purge is still busy, cannot purge list\n");
                 goto out;
         }
 
-        num_clean = (xen_blkif_max_pgrants / 100) * LRU_PERCENT_CLEAN;
-        num_clean = ring->persistent_gnt_c - xen_blkif_max_pgrants + num_clean;
-        num_clean = min(ring->persistent_gnt_c, num_clean);
-        if ((num_clean == 0) ||
-            (num_clean > (ring->persistent_gnt_c - atomic_read(&ring->persistent_gnt_in_use))))
-                goto out;
+        if (ring->persistent_gnt_c < xen_blkif_max_pgrants ||
+            (ring->persistent_gnt_c == xen_blkif_max_pgrants &&
+            !ring->blkif->vbd.overflow_max_grants)) {
+                num_clean = 0;
+        } else {
+                num_clean = (xen_blkif_max_pgrants / 100) * LRU_PERCENT_CLEAN;
+                num_clean = ring->persistent_gnt_c - xen_blkif_max_pgrants +
+                            num_clean;
+                num_clean = min(ring->persistent_gnt_c, num_clean);
+                pr_debug("Going to purge at least %u persistent grants\n",
+                         num_clean);
+        }
 
         /*
          * At this point, we can assure that there will be no calls
@@ -401,9 +419,7 @@ static void purge_persistent_gnt(struct xen_blkif_ring *ring)
          * number of grants.
          */
 
-        total = num_clean;
-
-        pr_debug("Going to purge %u persistent grants\n", num_clean);
+        total = 0;
 
         BUG_ON(!list_empty(&ring->persistent_purge_list));
         root = &ring->persistent_gnts;
@@ -412,46 +428,37 @@ purge_list:
                 BUG_ON(persistent_gnt->handle ==
                         BLKBACK_INVALID_HANDLE);
 
-                if (clean_used) {
-                        clear_bit(PERSISTENT_GNT_WAS_ACTIVE, persistent_gnt->flags);
+                if (persistent_gnt->active)
                         continue;
-                }
-
-                if (test_bit(PERSISTENT_GNT_ACTIVE, persistent_gnt->flags))
+                if (!scan_used && !persistent_gnt_timeout(persistent_gnt))
                         continue;
-                if (!scan_used &&
-                    (test_bit(PERSISTENT_GNT_WAS_ACTIVE, persistent_gnt->flags)))
+                if (scan_used && total >= num_clean)
                         continue;
 
                 rb_erase(&persistent_gnt->node, root);
                 list_add(&persistent_gnt->remove_node,
                          &ring->persistent_purge_list);
-                if (--num_clean == 0)
-                        goto finished;
+                total++;
         }
         /*
-         * If we get here it means we also need to start cleaning
+         * Check whether we also need to start cleaning
          * grants that were used since last purge in order to cope
          * with the requested num
          */
-        if (!scan_used && !clean_used) {
-                pr_debug("Still missing %u purged frames\n", num_clean);
+        if (!scan_used && total < num_clean) {
+                pr_debug("Still missing %u purged frames\n", num_clean - total);
                 scan_used = true;
                 goto purge_list;
         }
-finished:
-        if (!clean_used) {
-                pr_debug("Finished scanning for grants to clean, removing used flag\n");
-                clean_used = true;
-                goto purge_list;
-        }
 
-        ring->persistent_gnt_c -= (total - num_clean);
-        ring->blkif->vbd.overflow_max_grants = 0;
+        if (total) {
+                ring->persistent_gnt_c -= total;
+                ring->blkif->vbd.overflow_max_grants = 0;
 
-        /* We can defer this work */
-        schedule_work(&ring->persistent_purge_work);
-        pr_debug("Purged %u/%u\n", (total - num_clean), total);
+                /* We can defer this work */
+                schedule_work(&ring->persistent_purge_work);
+                pr_debug("Purged %u/%u\n", num_clean, total);
+        }
 
 out:
         return;
diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index ecb35fe8ca8d..1d3002d773f7 100644
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -233,16 +233,6 @@ struct xen_vbd {
 
 struct backend_info;
 
-/* Number of available flags */
-#define PERSISTENT_GNT_FLAGS_SIZE       2
-/* This persistent grant is currently in use */
-#define PERSISTENT_GNT_ACTIVE           0
-/*
- * This persistent grant has been used, this flag is set when we remove the
- * PERSISTENT_GNT_ACTIVE, to know that this grant has been used recently.
- */
-#define PERSISTENT_GNT_WAS_ACTIVE       1
-
 /* Number of requests that we can fit in a ring */
 #define XEN_BLKIF_REQS_PER_PAGE         32
 
@@ -250,7 +240,8 @@ struct persistent_gnt {
         struct page *page;
         grant_ref_t gnt;
         grant_handle_t handle;
-        DECLARE_BITMAP(flags, PERSISTENT_GNT_FLAGS_SIZE);
+        unsigned long last_used;
+        bool active;
         struct rb_node node;
         struct list_head remove_node;
 };
@@ -278,7 +269,6 @@ struct xen_blkif_ring {
         wait_queue_head_t       pending_free_wq;
 
         /* Tree to store persistent grants. */
-        spinlock_t              pers_gnts_lock;
         struct rb_root          persistent_gnts;
         unsigned int            persistent_gnt_c;
         atomic_t                persistent_gnt_in_use;
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 8986adab9bf5..a71d817e900d 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -46,6 +46,7 @@
 #include <linux/scatterlist.h>
 #include <linux/bitmap.h>
 #include <linux/list.h>
+#include <linux/workqueue.h>
 
 #include <xen/xen.h>
 #include <xen/xenbus.h>
@@ -121,6 +122,8 @@ static inline struct blkif_req *blkif_req(struct request *rq)
 
 static DEFINE_MUTEX(blkfront_mutex);
 static const struct block_device_operations xlvbd_block_fops;
+static struct delayed_work blkfront_work;
+static LIST_HEAD(info_list);
 
 /*
  * Maximum number of segments in indirect requests, the actual value used by
@@ -216,6 +219,7 @@ struct blkfront_info
         /* Save uncomplete reqs and bios for migration. */
         struct list_head requests;
         struct bio_list bio_list;
+        struct list_head info_list;
 };
 
 static unsigned int nr_minors;
@@ -1759,6 +1763,12 @@ abort_transaction:
         return err;
 }
 
+static void free_info(struct blkfront_info *info)
+{
+        list_del(&info->info_list);
+        kfree(info);
+}
+
 /* Common code used when first setting up, and when resuming. */
 static int talk_to_blkback(struct xenbus_device *dev,
                            struct blkfront_info *info)
@@ -1880,7 +1890,10 @@ again:
  destroy_blkring:
         blkif_free(info, 0);
 
-        kfree(info);
+        mutex_lock(&blkfront_mutex);
+        free_info(info);
+        mutex_unlock(&blkfront_mutex);
+
         dev_set_drvdata(&dev->dev, NULL);
 
         return err;
@@ -1991,6 +2004,10 @@ static int blkfront_probe(struct xenbus_device *dev,
         info->handle = simple_strtoul(strrchr(dev->nodename, '/')+1, NULL, 0);
         dev_set_drvdata(&dev->dev, info);
 
+        mutex_lock(&blkfront_mutex);
+        list_add(&info->info_list, &info_list);
+        mutex_unlock(&blkfront_mutex);
+
         return 0;
 }
 
@@ -2301,6 +2318,12 @@ static void blkfront_gather_backend_features(struct blkfront_info *info)
         if (indirect_segments <= BLKIF_MAX_SEGMENTS_PER_REQUEST)
                 indirect_segments = 0;
         info->max_indirect_segments = indirect_segments;
+
+        if (info->feature_persistent) {
+                mutex_lock(&blkfront_mutex);
+                schedule_delayed_work(&blkfront_work, HZ * 10);
+                mutex_unlock(&blkfront_mutex);
+        }
 }
 
 /*
@@ -2482,7 +2505,9 @@ static int blkfront_remove(struct xenbus_device *xbdev)
         mutex_unlock(&info->mutex);
 
         if (!bdev) {
-                kfree(info);
+                mutex_lock(&blkfront_mutex);
+                free_info(info);
+                mutex_unlock(&blkfront_mutex);
                 return 0;
         }
 
@@ -2502,7 +2527,9 @@ static int blkfront_remove(struct xenbus_device *xbdev)
         if (info && !bdev->bd_openers) {
                 xlvbd_release_gendisk(info);
                 disk->private_data = NULL;
-                kfree(info);
+                mutex_lock(&blkfront_mutex);
+                free_info(info);
+                mutex_unlock(&blkfront_mutex);
         }
 
         mutex_unlock(&bdev->bd_mutex);
@@ -2585,7 +2612,7 @@ static void blkif_release(struct gendisk *disk, fmode_t mode)
                 dev_info(disk_to_dev(bdev->bd_disk), "releasing disk\n");
                 xlvbd_release_gendisk(info);
                 disk->private_data = NULL;
-                kfree(info);
+                free_info(info);
         }
 
 out:
@@ -2618,6 +2645,61 @@ static struct xenbus_driver blkfront_driver = {
         .is_ready = blkfront_is_ready,
 };
 
+static void purge_persistent_grants(struct blkfront_info *info)
+{
+        unsigned int i;
+        unsigned long flags;
+
+        for (i = 0; i < info->nr_rings; i++) {
+                struct blkfront_ring_info *rinfo = &info->rinfo[i];
+                struct grant *gnt_list_entry, *tmp;
+
+                spin_lock_irqsave(&rinfo->ring_lock, flags);
+
+                if (rinfo->persistent_gnts_c == 0) {
+                        spin_unlock_irqrestore(&rinfo->ring_lock, flags);
+                        continue;
+                }
+
+                list_for_each_entry_safe(gnt_list_entry, tmp, &rinfo->grants,
+                                         node) {
+                        if (gnt_list_entry->gref == GRANT_INVALID_REF ||
+                            gnttab_query_foreign_access(gnt_list_entry->gref))
+                                continue;
+
+                        list_del(&gnt_list_entry->node);
+                        gnttab_end_foreign_access(gnt_list_entry->gref, 0, 0UL);
+                        rinfo->persistent_gnts_c--;
+                        __free_page(gnt_list_entry->page);
+                        kfree(gnt_list_entry);
+                }
+
+                spin_unlock_irqrestore(&rinfo->ring_lock, flags);
+        }
+}
+
+static void blkfront_delay_work(struct work_struct *work)
+{
+        struct blkfront_info *info;
+        bool need_schedule_work = false;
+
+        mutex_lock(&blkfront_mutex);
+
+        list_for_each_entry(info, &info_list, info_list) {
+                if (info->feature_persistent) {
+                        need_schedule_work = true;
+                        mutex_lock(&info->mutex);
+                        purge_persistent_grants(info);
+                        mutex_unlock(&info->mutex);
+                }
+        }
+
+        if (need_schedule_work)
+                schedule_delayed_work(&blkfront_work, HZ * 10);
+
+        mutex_unlock(&blkfront_mutex);
+}
+
 static int __init xlblk_init(void)
 {
         int ret;
@@ -2626,6 +2708,15 @@ static int __init xlblk_init(void)
         if (!xen_domain())
                 return -ENODEV;
 
+        if (!xen_has_pv_disk_devices())
+                return -ENODEV;
+
+        if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) {
+                pr_warn("xen_blk: can't get major %d with name %s\n",
+                        XENVBD_MAJOR, DEV_NAME);
+                return -ENODEV;
+        }
+
         if (xen_blkif_max_segments < BLKIF_MAX_SEGMENTS_PER_REQUEST)
                 xen_blkif_max_segments = BLKIF_MAX_SEGMENTS_PER_REQUEST;
 
@@ -2641,14 +2732,7 @@ static int __init xlblk_init(void)
                 xen_blkif_max_queues = nr_cpus;
         }
 
-        if (!xen_has_pv_disk_devices())
-                return -ENODEV;
-
-        if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) {
-                printk(KERN_WARNING "xen_blk: can't get major %d with name %s\n",
-                       XENVBD_MAJOR, DEV_NAME);
-                return -ENODEV;
-        }
+        INIT_DELAYED_WORK(&blkfront_work, blkfront_delay_work);
 
         ret = xenbus_register_frontend(&blkfront_driver);
         if (ret) {
@@ -2663,6 +2747,8 @@ module_init(xlblk_init);
 
 static void __exit xlblk_exit(void)
 {
+        cancel_delayed_work_sync(&blkfront_work);
+
         xenbus_unregister_driver(&blkfront_driver);
         unregister_blkdev(XENVBD_MAJOR, DEV_NAME);
         kfree(minors);
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 2df11cc08a46..845b0314ce3a 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -200,6 +200,7 @@ config BT_HCIUART_RTL
         depends on BT_HCIUART
         depends on BT_HCIUART_SERDEV
         depends on GPIOLIB
+        depends on ACPI
         select BT_HCIUART_3WIRE
         select BT_RTL
         help
diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c
index ed2a5c7cb77f..4593baff2bc9 100644
--- a/drivers/bluetooth/btmtkuart.c
+++ b/drivers/bluetooth/btmtkuart.c
@@ -144,8 +144,10 @@ static int mtk_setup_fw(struct hci_dev *hdev)
         fw_size = fw->size;
 
         /* The size of patch header is 30 bytes, should be skip */
-        if (fw_size < 30)
-                return -EINVAL;
+        if (fw_size < 30) {
+                err = -EINVAL;
+                goto free_fw;
+        }
 
         fw_size -= 30;
         fw_ptr += 30;
@@ -172,8 +174,8 @@ static int mtk_setup_fw(struct hci_dev *hdev)
                 fw_ptr += dlen;
         }
 
+free_fw:
         release_firmware(fw);
-
         return err;
 }
 
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index c9bac9dc4637..e4fe954e63a9 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -498,32 +498,29 @@ static int sysc_check_registers(struct sysc *ddata)
 
 /**
  * syc_ioremap - ioremap register space for the interconnect target module
- * @ddata: deviec driver data
+ * @ddata: device driver data
  *
  * Note that the interconnect target module registers can be anywhere
- * within the first child device address space. For example, SGX has
- * them at offset 0x1fc00 in the 32MB module address space. We just
- * what we need around the interconnect target module registers.
+ * within the interconnect target module range. For example, SGX has
+ * them at offset 0x1fc00 in the 32MB module address space. And cpsw
+ * has them at offset 0x1200 in the CPSW_WR child. Usually the
+ * the interconnect target module registers are at the beginning of
+ * the module range though.
  */
 static int sysc_ioremap(struct sysc *ddata)
 {
-        u32 size = 0;
-
-        if (ddata->offsets[SYSC_SYSSTATUS] >= 0)
-                size = ddata->offsets[SYSC_SYSSTATUS];
-        else if (ddata->offsets[SYSC_SYSCONFIG] >= 0)
-                size = ddata->offsets[SYSC_SYSCONFIG];
-        else if (ddata->offsets[SYSC_REVISION] >= 0)
-                size = ddata->offsets[SYSC_REVISION];
-        else
-                return -EINVAL;
+        int size;
 
-        size &= 0xfff00;
-        size += SZ_256;
+        size = max3(ddata->offsets[SYSC_REVISION],
+                    ddata->offsets[SYSC_SYSCONFIG],
+                    ddata->offsets[SYSC_SYSSTATUS]);
+
+        if (size < 0 || (size + sizeof(u32)) > ddata->module_size)
+                return -EINVAL;
 
         ddata->module_va = devm_ioremap(ddata->dev,
                                         ddata->module_pa,
-                                        size);
+                                        size + sizeof(u32));
         if (!ddata->module_va)
                 return -EIO;
 
@@ -1224,10 +1221,10 @@ static int sysc_child_suspend_noirq(struct device *dev)
         if (!pm_runtime_status_suspended(dev)) {
                 error = pm_generic_runtime_suspend(dev);
                 if (error) {
-                        dev_err(dev, "%s error at %i: %i\n",
-                                __func__, __LINE__, error);
+                        dev_warn(dev, "%s busy at %i: %i\n",
+                                 __func__, __LINE__, error);
 
-                        return error;
+                        return 0;
                 }
 
                 error = sysc_runtime_suspend(ddata->dev);
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 113fc6edb2b0..a5d5a96479bf 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -2546,7 +2546,7 @@ static int cdrom_ioctl_drive_status(struct cdrom_device_info *cdi,
         if (!CDROM_CAN(CDC_SELECT_DISC) ||
             (arg == CDSL_CURRENT || arg == CDSL_NONE))
                 return cdi->ops->drive_status(cdi, CDSL_CURRENT);
-        if (((int)arg >= cdi->capacity))
+        if (arg >= cdi->capacity)
                 return -EINVAL;
         return cdrom_slot_status(cdi, arg);
 }
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index ce277ee0a28a..40728491f37b 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -566,5 +566,5 @@ config RANDOM_TRUST_CPU
         that CPU manufacturer (perhaps with the insistence or mandate
         of a Nation State's intelligence or law enforcement agencies)
         has not installed a hidden back door to compromise the CPU's
-        random number generation facilities.
-
+        random number generation facilities. This can also be configured
+        at boot with "random.trust_cpu=on/off".
diff --git a/drivers/char/random.c b/drivers/char/random.c
index bf5f99fc36f1..c75b6cdf0053 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -779,6 +779,13 @@ static struct crng_state **crng_node_pool __read_mostly;
 
 static void invalidate_batched_entropy(void);
 
+static bool trust_cpu __ro_after_init = IS_ENABLED(CONFIG_RANDOM_TRUST_CPU);
+static int __init parse_trust_cpu(char *arg)
+{
+        return kstrtobool(arg, &trust_cpu);
+}
+early_param("random.trust_cpu", parse_trust_cpu);
+
 static void crng_initialize(struct crng_state *crng)
 {
         int             i;
@@ -799,12 +806,10 @@ static void crng_initialize(struct crng_state *crng)
                 }
                 crng->state[i] ^= rv;
         }
-#ifdef CONFIG_RANDOM_TRUST_CPU
-        if (arch_init) {
+        if (trust_cpu && arch_init) {
                 crng_init = 2;
                 pr_notice("random: crng done (trusting CPU's manufacturer)\n");
         }
-#endif
         crng->init_time = jiffies - CRNG_RESEED_INTERVAL - 1;
 }
 
diff --git a/drivers/clk/clk-npcm7xx.c b/drivers/clk/clk-npcm7xx.c
index 740af90a9508..c5edf8f2fd19 100644
--- a/drivers/clk/clk-npcm7xx.c
+++ b/drivers/clk/clk-npcm7xx.c
@@ -558,8 +558,8 @@ static void __init npcm7xx_clk_init(struct device_node *clk_np)
         if (!clk_base)
                 goto npcm7xx_init_error;
 
-        npcm7xx_clk_data = kzalloc(sizeof(*npcm7xx_clk_data->hws) *
-                NPCM7XX_NUM_CLOCKS + sizeof(npcm7xx_clk_data), GFP_KERNEL);
+        npcm7xx_clk_data = kzalloc(struct_size(npcm7xx_clk_data, hws,
+                                   NPCM7XX_NUM_CLOCKS), GFP_KERNEL);
         if (!npcm7xx_clk_data)
                 goto npcm7xx_init_np_err;
 
diff --git a/drivers/clk/x86/clk-st.c b/drivers/clk/x86/clk-st.c
index fb62f3938008..3a0996f2d556 100644
--- a/drivers/clk/x86/clk-st.c
+++ b/drivers/clk/x86/clk-st.c
@@ -46,7 +46,7 @@ static int st_clk_probe(struct platform_device *pdev)
                 clk_oscout1_parents, ARRAY_SIZE(clk_oscout1_parents),
                 0, st_data->base + CLKDRVSTR2, OSCOUT1CLK25MHZ, 3, 0, NULL);
 
-        clk_set_parent(hws[ST_CLK_MUX]->clk, hws[ST_CLK_25M]->clk);
+        clk_set_parent(hws[ST_CLK_MUX]->clk, hws[ST_CLK_48M]->clk);
 
         hws[ST_CLK_GATE] = clk_hw_register_gate(NULL, "oscout1", "oscout1_mux",
                 0, st_data->base + MISCCLKCNTL1, OSCCLKENB,
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 110483f0e3fb..e26a40971b26 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -379,9 +379,20 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
                 if (idx == -1)
                         idx = i; /* first enabled state */
                 if (s->target_residency > data->predicted_us) {
-                        if (!tick_nohz_tick_stopped())
+                        if (data->predicted_us < TICK_USEC)
                                 break;
 
+                        if (!tick_nohz_tick_stopped()) {
+                                /*
+                                 * If the state selected so far is shallow,
+                                 * waking up early won't hurt, so retain the
+                                 * tick in that case and let the governor run
+                                 * again in the next iteration of the loop.
+                                 */
+                                expected_interval = drv->states[idx].target_residency;
+                                break;
+                        }
+
                         /*
                          * If the state selected so far is shallow and this
                          * state's target residency matches the time till the
diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c
index 6e61cc93c2b0..d7aa7d7ff102 100644
--- a/drivers/crypto/caam/caamalg_qi.c
+++ b/drivers/crypto/caam/caamalg_qi.c
@@ -679,10 +679,8 @@ static int xts_ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher,
         int ret = 0;
 
         if (keylen != 2 * AES_MIN_KEY_SIZE  && keylen != 2 * AES_MAX_KEY_SIZE) {
-                crypto_ablkcipher_set_flags(ablkcipher,
-                                            CRYPTO_TFM_RES_BAD_KEY_LEN);
                 dev_err(jrdev, "key size mismatch\n");
-                return -EINVAL;
+                goto badkey;
         }
 
         ctx->cdata.keylen = keylen;
@@ -715,7 +713,7 @@ static int xts_ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher,
         return ret;
 badkey:
         crypto_ablkcipher_set_flags(ablkcipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
-        return 0;
+        return -EINVAL;
 }
 
 /*
diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c
index 578ea63a3109..f26d62e5533a 100644
--- a/drivers/crypto/caam/caampkc.c
+++ b/drivers/crypto/caam/caampkc.c
@@ -71,8 +71,8 @@ static void rsa_priv_f2_unmap(struct device *dev, struct rsa_edesc *edesc,
         dma_unmap_single(dev, pdb->d_dma, key->d_sz, DMA_TO_DEVICE);
         dma_unmap_single(dev, pdb->p_dma, p_sz, DMA_TO_DEVICE);
         dma_unmap_single(dev, pdb->q_dma, q_sz, DMA_TO_DEVICE);
-        dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE);
-        dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_TO_DEVICE);
+        dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL);
+        dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_BIDIRECTIONAL);
 }
 
 static void rsa_priv_f3_unmap(struct device *dev, struct rsa_edesc *edesc,
@@ -90,8 +90,8 @@ static void rsa_priv_f3_unmap(struct device *dev, struct rsa_edesc *edesc,
         dma_unmap_single(dev, pdb->dp_dma, p_sz, DMA_TO_DEVICE);
         dma_unmap_single(dev, pdb->dq_dma, q_sz, DMA_TO_DEVICE);
         dma_unmap_single(dev, pdb->c_dma, p_sz, DMA_TO_DEVICE);
-        dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE);
-        dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_TO_DEVICE);
+        dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL);
+        dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_BIDIRECTIONAL);
 }
 
 /* RSA Job Completion handler */
@@ -417,13 +417,13 @@ static int set_rsa_priv_f2_pdb(struct akcipher_request *req,
                 goto unmap_p;
         }
 
-        pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_TO_DEVICE);
+        pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_BIDIRECTIONAL);
         if (dma_mapping_error(dev, pdb->tmp1_dma)) {
                 dev_err(dev, "Unable to map RSA tmp1 memory\n");
                 goto unmap_q;
         }
 
-        pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_TO_DEVICE);
+        pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_BIDIRECTIONAL);
         if (dma_mapping_error(dev, pdb->tmp2_dma)) {
                 dev_err(dev, "Unable to map RSA tmp2 memory\n");
                 goto unmap_tmp1;
@@ -451,7 +451,7 @@ static int set_rsa_priv_f2_pdb(struct akcipher_request *req,
         return 0;
 
 unmap_tmp1:
-        dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE);
+        dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL);
 unmap_q:
         dma_unmap_single(dev, pdb->q_dma, q_sz, DMA_TO_DEVICE);
 unmap_p:
@@ -504,13 +504,13 @@ static int set_rsa_priv_f3_pdb(struct akcipher_request *req,
                 goto unmap_dq;
         }
 
-        pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_TO_DEVICE);
+        pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_BIDIRECTIONAL);
         if (dma_mapping_error(dev, pdb->tmp1_dma)) {
                 dev_err(dev, "Unable to map RSA tmp1 memory\n");
                 goto unmap_qinv;
         }
 
-        pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_TO_DEVICE);
+        pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_BIDIRECTIONAL);
         if (dma_mapping_error(dev, pdb->tmp2_dma)) {
                 dev_err(dev, "Unable to map RSA tmp2 memory\n");
                 goto unmap_tmp1;
@@ -538,7 +538,7 @@ static int set_rsa_priv_f3_pdb(struct akcipher_request *req,
         return 0;
 
 unmap_tmp1:
-        dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE);
+        dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL);
 unmap_qinv:
         dma_unmap_single(dev, pdb->c_dma, p_sz, DMA_TO_DEVICE);
 unmap_dq:
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index f4f258075b89..acdd72016ffe 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -190,7 +190,8 @@ static void caam_jr_dequeue(unsigned long devarg)
                 BUG_ON(CIRC_CNT(head, tail + i, JOBR_DEPTH) <= 0);
 
                 /* Unmap just-run descriptor so we can post-process */
-                dma_unmap_single(dev, jrp->outring[hw_idx].desc,
+                dma_unmap_single(dev,
+                                 caam_dma_to_cpu(jrp->outring[hw_idx].desc),
                                  jrp->entinfo[sw_idx].desc_size,
                                  DMA_TO_DEVICE);
 
diff --git a/drivers/crypto/cavium/nitrox/nitrox_dev.h b/drivers/crypto/cavium/nitrox/nitrox_dev.h
index 9a476bb6d4c7..af596455b420 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_dev.h
+++ b/drivers/crypto/cavium/nitrox/nitrox_dev.h
@@ -35,6 +35,7 @@ struct nitrox_cmdq {
         /* requests in backlog queues */
         atomic_t backlog_count;
 
+        int write_idx;
         /* command size 32B/64B */
         u8 instr_size;
         u8 qno;
@@ -87,7 +88,7 @@ struct nitrox_bh {
         struct bh_data *slc;
 };
 
-/* NITROX-5 driver state */
+/* NITROX-V driver state */
 #define NITROX_UCODE_LOADED     0
 #define NITROX_READY            1
 
diff --git a/drivers/crypto/cavium/nitrox/nitrox_lib.c b/drivers/crypto/cavium/nitrox/nitrox_lib.c
index ebe267379ac9..4d31df07777f 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_lib.c
+++ b/drivers/crypto/cavium/nitrox/nitrox_lib.c
@@ -36,6 +36,7 @@ static int cmdq_common_init(struct nitrox_cmdq *cmdq)
         cmdq->head = PTR_ALIGN(cmdq->head_unaligned, PKT_IN_ALIGN);
         cmdq->dma = PTR_ALIGN(cmdq->dma_unaligned, PKT_IN_ALIGN);
         cmdq->qsize = (qsize + PKT_IN_ALIGN);
+        cmdq->write_idx = 0;
 
         spin_lock_init(&cmdq->response_lock);
         spin_lock_init(&cmdq->cmdq_lock);
diff --git a/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c b/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c
index deaefd532aaa..4a362fc22f62 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c
+++ b/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c
@@ -42,6 +42,16 @@
  *   Invalid flag options in AES-CCM IV.
  */
 
+static inline int incr_index(int index, int count, int max)
+{
+        if ((index + count) >= max)
+                index = index + count - max;
+        else
+                index += count;
+
+        return index;
+}
+
 /**
  * dma_free_sglist - unmap and free the sg lists.
  * @ndev: N5 device
@@ -426,30 +436,29 @@ static void post_se_instr(struct nitrox_softreq *sr,
                           struct nitrox_cmdq *cmdq)
 {
         struct nitrox_device *ndev = sr->ndev;
-        union nps_pkt_in_instr_baoff_dbell pkt_in_baoff_dbell;
-        u64 offset;
+        int idx;
         u8 *ent;
 
         spin_lock_bh(&cmdq->cmdq_lock);
 
-        /* get the next write offset */
-        offset = NPS_PKT_IN_INSTR_BAOFF_DBELLX(cmdq->qno);
-        pkt_in_baoff_dbell.value = nitrox_read_csr(ndev, offset);
+        idx = cmdq->write_idx;
         /* copy the instruction */
-        ent = cmdq->head + pkt_in_baoff_dbell.s.aoff;
+        ent = cmdq->head + (idx * cmdq->instr_size);
         memcpy(ent, &sr->instr, cmdq->instr_size);
-        /* flush the command queue updates */
-        dma_wmb();
 
-        sr->tstamp = jiffies;
         atomic_set(&sr->status, REQ_POSTED);
         response_list_add(sr, cmdq);
+        sr->tstamp = jiffies;
+        /* flush the command queue updates */
+        dma_wmb();
 
         /* Ring doorbell with count 1 */
         writeq(1, cmdq->dbell_csr_addr);
         /* orders the doorbell rings */
         mmiowb();
 
+        cmdq->write_idx = incr_index(idx, 1, ndev->qlen);
+
         spin_unlock_bh(&cmdq->cmdq_lock);
 }
 
@@ -459,6 +468,9 @@ static int post_backlog_cmds(struct nitrox_cmdq *cmdq)
         struct nitrox_softreq *sr, *tmp;
         int ret = 0;
 
+        if (!atomic_read(&cmdq->backlog_count))
+                return 0;
+
         spin_lock_bh(&cmdq->backlog_lock);
 
         list_for_each_entry_safe(sr, tmp, &cmdq->backlog_head, backlog) {
@@ -466,7 +478,7 @@ static int post_backlog_cmds(struct nitrox_cmdq *cmdq)
 
                 /* submit until space available */
                 if (unlikely(cmdq_full(cmdq, ndev->qlen))) {
-                        ret = -EBUSY;
+                        ret = -ENOSPC;
                         break;
                 }
                 /* delete from backlog list */
@@ -491,23 +503,20 @@ static int nitrox_enqueue_request(struct nitrox_softreq *sr)
 {
         struct nitrox_cmdq *cmdq = sr->cmdq;
         struct nitrox_device *ndev = sr->ndev;
-        int ret = -EBUSY;
+
+        /* try to post backlog requests */
+        post_backlog_cmds(cmdq);
 
         if (unlikely(cmdq_full(cmdq, ndev->qlen))) {
                 if (!(sr->flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
-                        return -EAGAIN;
-
+                        return -ENOSPC;
+                /* add to backlog list */
                 backlog_list_add(sr, cmdq);
-        } else {
-                ret = post_backlog_cmds(cmdq);
-                if (ret) {
-                        backlog_list_add(sr, cmdq);
-                        return ret;
-                }
-                post_se_instr(sr, cmdq);
-                ret = -EINPROGRESS;
+                return -EBUSY;
         }
-        return ret;
+        post_se_instr(sr, cmdq);
+
+        return -EINPROGRESS;
 }
 
 /**
@@ -624,11 +633,9 @@ int nitrox_process_se_request(struct nitrox_device *ndev,
          */
         sr->instr.fdata[0] = *((u64 *)&req->gph);
         sr->instr.fdata[1] = 0;
-        /* flush the soft_req changes before posting the cmd */
-        wmb();
 
         ret = nitrox_enqueue_request(sr);
-        if (ret == -EAGAIN)
+        if (ret == -ENOSPC)
                 goto send_fail;
 
         return ret;
diff --git a/drivers/crypto/chelsio/chtls/chtls.h b/drivers/crypto/chelsio/chtls/chtls.h
index a53a0e6ba024..7725b6ee14ef 100644
--- a/drivers/crypto/chelsio/chtls/chtls.h
+++ b/drivers/crypto/chelsio/chtls/chtls.h
@@ -96,6 +96,10 @@ enum csk_flags {
         CSK_CONN_INLINE,        /* Connection on HW */
 };
 
+enum chtls_cdev_state {
+        CHTLS_CDEV_STATE_UP = 1
+};
+
 struct listen_ctx {
         struct sock *lsk;
         struct chtls_dev *cdev;
@@ -146,6 +150,7 @@ struct chtls_dev {
         unsigned int send_page_order;
         int max_host_sndbuf;
         struct key_map kmap;
+        unsigned int cdev_state;
 };
 
 struct chtls_hws {
diff --git a/drivers/crypto/chelsio/chtls/chtls_main.c b/drivers/crypto/chelsio/chtls/chtls_main.c
index 9b07f9165658..f59b044ebd25 100644
--- a/drivers/crypto/chelsio/chtls/chtls_main.c
+++ b/drivers/crypto/chelsio/chtls/chtls_main.c
@@ -160,6 +160,7 @@ static void chtls_register_dev(struct chtls_dev *cdev)
         tlsdev->hash = chtls_create_hash;
         tlsdev->unhash = chtls_destroy_hash;
         tls_register_device(&cdev->tlsdev);
+        cdev->cdev_state = CHTLS_CDEV_STATE_UP;
 }
 
 static void chtls_unregister_dev(struct chtls_dev *cdev)
@@ -281,8 +282,10 @@ static void chtls_free_all_uld(void)
         struct chtls_dev *cdev, *tmp;
 
         mutex_lock(&cdev_mutex);
-        list_for_each_entry_safe(cdev, tmp, &cdev_list, list)
-                chtls_free_uld(cdev);
+        list_for_each_entry_safe(cdev, tmp, &cdev_list, list) {
+                if (cdev->cdev_state == CHTLS_CDEV_STATE_UP)
+                        chtls_free_uld(cdev);
+        }
         mutex_unlock(&cdev_mutex);
 }
 
diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c
index 5285ece4f33a..b71895871be3 100644
--- a/drivers/crypto/vmx/aes_cbc.c
+++ b/drivers/crypto/vmx/aes_cbc.c
@@ -107,24 +107,23 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc,
                 ret = crypto_skcipher_encrypt(req);
                 skcipher_request_zero(req);
         } else {
-                preempt_disable();
-                pagefault_disable();
-                enable_kernel_vsx();
-
                 blkcipher_walk_init(&walk, dst, src, nbytes);
                 ret = blkcipher_walk_virt(desc, &walk);
                 while ((nbytes = walk.nbytes)) {
+                        preempt_disable();
+                        pagefault_disable();
+                        enable_kernel_vsx();
                         aes_p8_cbc_encrypt(walk.src.virt.addr,
                                            walk.dst.virt.addr,
                                            nbytes & AES_BLOCK_MASK,
                                            &ctx->enc_key, walk.iv, 1);
+                        disable_kernel_vsx();
+                        pagefault_enable();
+                        preempt_enable();
+
                         nbytes &= AES_BLOCK_SIZE - 1;
                         ret = blkcipher_walk_done(desc, &walk, nbytes);
                 }
-
-                disable_kernel_vsx();
-                pagefault_enable();
-                preempt_enable();
         }
 
         return ret;
@@ -147,24 +146,23 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc,
                 ret = crypto_skcipher_decrypt(req);
                 skcipher_request_zero(req);
         } else {
-                preempt_disable();
-                pagefault_disable();
-                enable_kernel_vsx();
-
                 blkcipher_walk_init(&walk, dst, src, nbytes);
                 ret = blkcipher_walk_virt(desc, &walk);
                 while ((nbytes = walk.nbytes)) {
+                        preempt_disable();
+                        pagefault_disable();
+                        enable_kernel_vsx();
                         aes_p8_cbc_encrypt(walk.src.virt.addr,
                                            walk.dst.virt.addr,
                                            nbytes & AES_BLOCK_MASK,
                                            &ctx->dec_key, walk.iv, 0);
+                        disable_kernel_vsx();
+                        pagefault_enable();
+                        preempt_enable();
+
                         nbytes &= AES_BLOCK_SIZE - 1;
                         ret = blkcipher_walk_done(desc, &walk, nbytes);
                 }
-
-                disable_kernel_vsx();
-                pagefault_enable();
-                preempt_enable();
         }
 
         return ret;
diff --git a/drivers/crypto/vmx/aes_xts.c b/drivers/crypto/vmx/aes_xts.c
index 8bd9aff0f55f..e9954a7d4694 100644
--- a/drivers/crypto/vmx/aes_xts.c
+++ b/drivers/crypto/vmx/aes_xts.c
@@ -116,32 +116,39 @@ static int p8_aes_xts_crypt(struct blkcipher_desc *desc,
                 ret = enc? crypto_skcipher_encrypt(req) : crypto_skcipher_decrypt(req);
                 skcipher_request_zero(req);
         } else {
+                blkcipher_walk_init(&walk, dst, src, nbytes);
+
+                ret = blkcipher_walk_virt(desc, &walk);
+
                 preempt_disable();
                 pagefault_disable();
                 enable_kernel_vsx();
 
-                blkcipher_walk_init(&walk, dst, src, nbytes);
-
-                ret = blkcipher_walk_virt(desc, &walk);
                 iv = walk.iv;
                 memset(tweak, 0, AES_BLOCK_SIZE);
                 aes_p8_encrypt(iv, tweak, &ctx->tweak_key);
 
+                disable_kernel_vsx();
+                pagefault_enable();
+                preempt_enable();
+
                 while ((nbytes = walk.nbytes)) {
+                        preempt_disable();
+                        pagefault_disable();
+                        enable_kernel_vsx();
                         if (enc)
                                 aes_p8_xts_encrypt(walk.src.virt.addr, walk.dst.virt.addr,
                                                 nbytes & AES_BLOCK_MASK, &ctx->enc_key, NULL, tweak);
                         else
                                 aes_p8_xts_decrypt(walk.src.virt.addr, walk.dst.virt.addr,
                                                 nbytes & AES_BLOCK_MASK, &ctx->dec_key, NULL, tweak);
+                        disable_kernel_vsx();
+                        pagefault_enable();
+                        preempt_enable();
 
                         nbytes &= AES_BLOCK_SIZE - 1;
                         ret = blkcipher_walk_done(desc, &walk, nbytes);
                 }
-
-                disable_kernel_vsx();
-                pagefault_enable();
-                preempt_enable();
         }
         return ret;
 }
diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index 6fd46083e629..bbe4d72ca105 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c
@@ -392,7 +392,8 @@ static vm_fault_t dev_dax_huge_fault(struct vm_fault *vmf,
 {
         struct file *filp = vmf->vma->vm_file;
         unsigned long fault_size;
-        int rc, id;
+        vm_fault_t rc = VM_FAULT_SIGBUS;
+        int id;
         pfn_t pfn;
         struct dev_dax *dev_dax = filp->private_data;
 
diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index 721e6c57beae..64342944d917 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/drivers/firmware/arm_scmi/perf.c
@@ -166,7 +166,13 @@ scmi_perf_domain_attributes_get(const struct scmi_handle *handle, u32 domain,
                                         le32_to_cpu(attr->sustained_freq_khz);
                 dom_info->sustained_perf_level =
                                         le32_to_cpu(attr->sustained_perf_level);
-                dom_info->mult_factor = (dom_info->sustained_freq_khz * 1000) /
+                if (!dom_info->sustained_freq_khz ||
+                    !dom_info->sustained_perf_level)
+                        /* CPUFreq converts to kHz, hence default 1000 */
+                        dom_info->mult_factor = 1000;
+                else
+                        dom_info->mult_factor =
+                                        (dom_info->sustained_freq_khz * 1000) /
                                         dom_info->sustained_perf_level;
                 memcpy(dom_info->name, attr->name, SCMI_MAX_STR_SIZE);
         }
diff --git a/drivers/gpio/gpio-adp5588.c b/drivers/gpio/gpio-adp5588.c
index 3530ccd17e04..da9781a2ef4a 100644
--- a/drivers/gpio/gpio-adp5588.c
+++ b/drivers/gpio/gpio-adp5588.c
@@ -41,6 +41,8 @@ struct adp5588_gpio {
         uint8_t int_en[3];
         uint8_t irq_mask[3];
         uint8_t irq_stat[3];
+        uint8_t int_input_en[3];
+        uint8_t int_lvl_cached[3];
 };
 
 static int adp5588_gpio_read(struct i2c_client *client, u8 reg)
@@ -173,12 +175,28 @@ static void adp5588_irq_bus_sync_unlock(struct irq_data *d)
         struct adp5588_gpio *dev = irq_data_get_irq_chip_data(d);
         int i;
 
-        for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++)
+        for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) {
+                if (dev->int_input_en[i]) {
+                        mutex_lock(&dev->lock);
+                        dev->dir[i] &= ~dev->int_input_en[i];
+                        dev->int_input_en[i] = 0;
+                        adp5588_gpio_write(dev->client, GPIO_DIR1 + i,
+                                           dev->dir[i]);
+                        mutex_unlock(&dev->lock);
+                }
+
+                if (dev->int_lvl_cached[i] != dev->int_lvl[i]) {
+                        dev->int_lvl_cached[i] = dev->int_lvl[i];
+                        adp5588_gpio_write(dev->client, GPIO_INT_LVL1 + i,
+                                           dev->int_lvl[i]);
+                }
+
                 if (dev->int_en[i] ^ dev->irq_mask[i]) {
                         dev->int_en[i] = dev->irq_mask[i];
                         adp5588_gpio_write(dev->client, GPIO_INT_EN1 + i,
                                            dev->int_en[i]);
                 }
+        }
 
         mutex_unlock(&dev->irq_lock);
 }
@@ -221,9 +239,7 @@ static int adp5588_irq_set_type(struct irq_data *d, unsigned int type)
         else
                 return -EINVAL;
 
-        adp5588_gpio_direction_input(&dev->gpio_chip, gpio);
-        adp5588_gpio_write(dev->client, GPIO_INT_LVL1 + bank,
-                           dev->int_lvl[bank]);
+        dev->int_input_en[bank] |= bit;
 
         return 0;
 }
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 28da700f5f52..044888fd96a1 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -728,6 +728,7 @@ static int dwapb_gpio_probe(struct platform_device *pdev)
 out_unregister:
         dwapb_gpio_unregister(gpio);
         dwapb_irq_teardown(gpio);
+        clk_disable_unprepare(gpio->clk);
 
         return err;
 }
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index c48ed9d89ff5..8b9d7e42c600 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -25,7 +25,6 @@
 
 struct acpi_gpio_event {
         struct list_head node;
-        struct list_head initial_sync_list;
         acpi_handle handle;
         unsigned int pin;
         unsigned int irq;
@@ -49,10 +48,19 @@ struct acpi_gpio_chip {
         struct mutex conn_lock;
         struct gpio_chip *chip;
         struct list_head events;
+        struct list_head deferred_req_irqs_list_entry;
 };
 
-static LIST_HEAD(acpi_gpio_initial_sync_list);
-static DEFINE_MUTEX(acpi_gpio_initial_sync_list_lock);
+/*
+ * For gpiochips which call acpi_gpiochip_request_interrupts() before late_init
+ * (so builtin drivers) we register the ACPI GpioInt event handlers from a
+ * late_initcall_sync handler, so that other builtin drivers can register their
+ * OpRegions before the event handlers can run.  This list contains gpiochips
+ * for which the acpi_gpiochip_request_interrupts() has been deferred.
+ */
+static DEFINE_MUTEX(acpi_gpio_deferred_req_irqs_lock);
+static LIST_HEAD(acpi_gpio_deferred_req_irqs_list);
+static bool acpi_gpio_deferred_req_irqs_done;
 
 static int acpi_gpiochip_find(struct gpio_chip *gc, void *data)
 {
@@ -89,21 +97,6 @@ static struct gpio_desc *acpi_get_gpiod(char *path, int pin)
         return gpiochip_get_desc(chip, pin);
 }
 
-static void acpi_gpio_add_to_initial_sync_list(struct acpi_gpio_event *event)
-{
-        mutex_lock(&acpi_gpio_initial_sync_list_lock);
-        list_add(&event->initial_sync_list, &acpi_gpio_initial_sync_list);
-        mutex_unlock(&acpi_gpio_initial_sync_list_lock);
-}
-
-static void acpi_gpio_del_from_initial_sync_list(struct acpi_gpio_event *event)
-{
-        mutex_lock(&acpi_gpio_initial_sync_list_lock);
-        if (!list_empty(&event->initial_sync_list))
-                list_del_init(&event->initial_sync_list);
-        mutex_unlock(&acpi_gpio_initial_sync_list_lock);
-}
-
 static irqreturn_t acpi_gpio_irq_handler(int irq, void *data)
 {
         struct acpi_gpio_event *event = data;
@@ -186,7 +179,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
 
         gpiod_direction_input(desc);
 
-        value = gpiod_get_value(desc);
+        value = gpiod_get_value_cansleep(desc);
 
         ret = gpiochip_lock_as_irq(chip, pin);
         if (ret) {
@@ -229,7 +222,6 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
         event->irq = irq;
         event->pin = pin;
         event->desc = desc;
-        INIT_LIST_HEAD(&event->initial_sync_list);
 
         ret = request_threaded_irq(event->irq, NULL, handler, irqflags,
                                    "ACPI:Event", event);
@@ -251,10 +243,9 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
          * may refer to OperationRegions from other (builtin) drivers which
          * may be probed after us.
          */
-        if (handler == acpi_gpio_irq_handler &&
-            (((irqflags & IRQF_TRIGGER_RISING) && value == 1) ||
-             ((irqflags & IRQF_TRIGGER_FALLING) && value == 0)))
-                acpi_gpio_add_to_initial_sync_list(event);
+        if (((irqflags & IRQF_TRIGGER_RISING) && value == 1) ||
+            ((irqflags & IRQF_TRIGGER_FALLING) && value == 0))
+                handler(event->irq, event);
 
         return AE_OK;
 
@@ -283,6 +274,7 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
         struct acpi_gpio_chip *acpi_gpio;
         acpi_handle handle;
         acpi_status status;
+        bool defer;
 
         if (!chip->parent || !chip->to_irq)
                 return;
@@ -295,6 +287,16 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
         if (ACPI_FAILURE(status))
                 return;
 
+        mutex_lock(&acpi_gpio_deferred_req_irqs_lock);
+        defer = !acpi_gpio_deferred_req_irqs_done;
+        if (defer)
+                list_add(&acpi_gpio->deferred_req_irqs_list_entry,
+                         &acpi_gpio_deferred_req_irqs_list);
+        mutex_unlock(&acpi_gpio_deferred_req_irqs_lock);
+
+        if (defer)
+                return;
+
         acpi_walk_resources(handle, "_AEI",
                             acpi_gpiochip_request_interrupt, acpi_gpio);
 }
@@ -325,11 +327,14 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip)
         if (ACPI_FAILURE(status))
                 return;
 
+        mutex_lock(&acpi_gpio_deferred_req_irqs_lock);
+        if (!list_empty(&acpi_gpio->deferred_req_irqs_list_entry))
+                list_del_init(&acpi_gpio->deferred_req_irqs_list_entry);
+        mutex_unlock(&acpi_gpio_deferred_req_irqs_lock);
+
         list_for_each_entry_safe_reverse(event, ep, &acpi_gpio->events, node) {
                 struct gpio_desc *desc;
 
-                acpi_gpio_del_from_initial_sync_list(event);
-
                 if (irqd_is_wakeup_set(irq_get_irq_data(event->irq)))
                         disable_irq_wake(event->irq);
 
@@ -1052,6 +1057,7 @@ void acpi_gpiochip_add(struct gpio_chip *chip)
 
         acpi_gpio->chip = chip;
         INIT_LIST_HEAD(&acpi_gpio->events);
+        INIT_LIST_HEAD(&acpi_gpio->deferred_req_irqs_list_entry);
 
         status = acpi_attach_data(handle, acpi_gpio_chip_dh, acpi_gpio);
         if (ACPI_FAILURE(status)) {
@@ -1198,20 +1204,28 @@ bool acpi_can_fallback_to_crs(struct acpi_device *adev, const char *con_id)
         return con_id == NULL;
 }
 
-/* Sync the initial state of handlers after all builtin drivers have probed */
-static int acpi_gpio_initial_sync(void)
+/* Run deferred acpi_gpiochip_request_interrupts() */
+static int acpi_gpio_handle_deferred_request_interrupts(void)
 {
-        struct acpi_gpio_event *event, *ep;
+        struct acpi_gpio_chip *acpi_gpio, *tmp;
+
+        mutex_lock(&acpi_gpio_deferred_req_irqs_lock);
+        list_for_each_entry_safe(acpi_gpio, tmp,
+                                 &acpi_gpio_deferred_req_irqs_list,
+                                 deferred_req_irqs_list_entry) {
+                acpi_handle handle;
 
-        mutex_lock(&acpi_gpio_initial_sync_list_lock);
-        list_for_each_entry_safe(event, ep, &acpi_gpio_initial_sync_list,
-                                 initial_sync_list) {
-                acpi_evaluate_object(event->handle, NULL, NULL, NULL);
-                list_del_init(&event->initial_sync_list);
+                handle = ACPI_HANDLE(acpi_gpio->chip->parent);
+                acpi_walk_resources(handle, "_AEI",
+                                    acpi_gpiochip_request_interrupt, acpi_gpio);
+
+                list_del_init(&acpi_gpio->deferred_req_irqs_list_entry);
         }
-        mutex_unlock(&acpi_gpio_initial_sync_list_lock);
+
+        acpi_gpio_deferred_req_irqs_done = true;
+        mutex_unlock(&acpi_gpio_deferred_req_irqs_lock);
 
         return 0;
 }
 /* We must use _sync so that this runs after the first deferred_probe run */
-late_initcall_sync(acpi_gpio_initial_sync);
+late_initcall_sync(acpi_gpio_handle_deferred_request_interrupts);
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index a4f1157d6aa0..d4e7a09598fa 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -31,6 +31,7 @@ static int of_gpiochip_match_node_and_xlate(struct gpio_chip *chip, void *data)
         struct of_phandle_args *gpiospec = data;
 
         return chip->gpiodev->dev.of_node == gpiospec->np &&
+                                chip->of_xlate &&
                                 chip->of_xlate(chip, gpiospec, NULL) >= 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 502b94fb116a..b6e9df11115d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1012,13 +1012,9 @@ static int amdgpu_cs_ib_fill(struct amdgpu_device *adev,
                 if (r)
                         return r;
 
-                if (chunk_ib->flags & AMDGPU_IB_FLAG_PREAMBLE) {
-                        parser->job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT;
-                        if (!parser->ctx->preamble_presented) {
-                                parser->job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT_FIRST;
-                                parser->ctx->preamble_presented = true;
-                        }
-                }
+                if (chunk_ib->flags & AMDGPU_IB_FLAG_PREAMBLE)
+                        parser->job->preamble_status |=
+                                AMDGPU_PREAMBLE_IB_PRESENT;
 
                 if (parser->ring && parser->ring != ring)
                         return -EINVAL;
@@ -1207,26 +1203,24 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 
         int r;
 
+        job = p->job;
+        p->job = NULL;
+
+        r = drm_sched_job_init(&job->base, entity, p->filp);
+        if (r)
+                goto error_unlock;
+
+        /* No memory allocation is allowed while holding the mn lock */
         amdgpu_mn_lock(p->mn);
         amdgpu_bo_list_for_each_userptr_entry(e, p->bo_list) {
                 struct amdgpu_bo *bo = e->robj;
 
                 if (amdgpu_ttm_tt_userptr_needs_pages(bo->tbo.ttm)) {
-                        amdgpu_mn_unlock(p->mn);
-                        return -ERESTARTSYS;
+                        r = -ERESTARTSYS;
+                        goto error_abort;
                 }
         }
 
-        job = p->job;
-        p->job = NULL;
-
-        r = drm_sched_job_init(&job->base, entity, p->filp);
-        if (r) {
-                amdgpu_job_free(job);
-                amdgpu_mn_unlock(p->mn);
-                return r;
-        }
-
         job->owner = p->filp;
         p->fence = dma_fence_get(&job->base.s_fence->finished);
 
@@ -1241,6 +1235,12 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 
         amdgpu_cs_post_dependencies(p);
 
+        if ((job->preamble_status & AMDGPU_PREAMBLE_IB_PRESENT) &&
+            !p->ctx->preamble_presented) {
+                job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT_FIRST;
+                p->ctx->preamble_presented = true;
+        }
+
         cs->out.handle = seq;
         job->uf_sequence = seq;
 
@@ -1258,6 +1258,15 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
         amdgpu_mn_unlock(p->mn);
 
         return 0;
+
+error_abort:
+        dma_fence_put(&job->base.s_fence->finished);
+        job->base.s_fence = NULL;
+
+error_unlock:
+        amdgpu_job_free(job);
+        amdgpu_mn_unlock(p->mn);
+        return r;
 }
 
 int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 5518e623fed2..51b5e977ca88 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -164,8 +164,10 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
                 return r;
         }
 
+        need_ctx_switch = ring->current_ctx != fence_ctx;
         if (ring->funcs->emit_pipeline_sync && job &&
             ((tmp = amdgpu_sync_get_fence(&job->sched_sync, NULL)) ||
+             (amdgpu_sriov_vf(adev) && need_ctx_switch) ||
              amdgpu_vm_need_pipeline_sync(ring, job))) {
                 need_pipe_sync = true;
                 dma_fence_put(tmp);
@@ -196,7 +198,6 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
         }
 
         skip_preamble = ring->current_ctx == fence_ctx;
-        need_ctx_switch = ring->current_ctx != fence_ctx;
         if (job && ring->funcs->emit_cntxcntl) {
                 if (need_ctx_switch)
                         status |= AMDGPU_HAVE_CTX_SWITCH;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index 8f98629fbe59..7b4e657a95c7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -1932,14 +1932,6 @@ void amdgpu_pm_compute_clocks(struct amdgpu_device *adev)
                         amdgpu_fence_wait_empty(ring);
         }
 
-        mutex_lock(&adev->pm.mutex);
-        /* update battery/ac status */
-        if (power_supply_is_system_supplied() > 0)
-                adev->pm.ac_power = true;
-        else
-                adev->pm.ac_power = false;
-        mutex_unlock(&adev->pm.mutex);
-
         if (adev->powerplay.pp_funcs->dispatch_tasks) {
                 if (!amdgpu_device_has_dc_support(adev)) {
                         mutex_lock(&adev->pm.mutex);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index ece0ac703e27..b17771dd5ce7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -172,6 +172,7 @@ static void amdgpu_vm_bo_base_init(struct amdgpu_vm_bo_base *base,
          * is validated on next vm use to avoid fault.
          * */
         list_move_tail(&base->vm_status, &vm->evicted);
+        base->moved = true;
 }
 
 /**
@@ -369,7 +370,6 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
         uint64_t addr;
         int r;
 
-        addr = amdgpu_bo_gpu_offset(bo);
         entries = amdgpu_bo_size(bo) / 8;
 
         if (pte_support_ats) {
@@ -401,6 +401,7 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
         if (r)
                 goto error;
 
+        addr = amdgpu_bo_gpu_offset(bo);
         if (ats_entries) {
                 uint64_t ats_value;
 
@@ -2483,28 +2484,52 @@ static uint32_t amdgpu_vm_get_block_size(uint64_t vm_size)
  * amdgpu_vm_adjust_size - adjust vm size, block size and fragment size
  *
  * @adev: amdgpu_device pointer
- * @vm_size: the default vm size if it's set auto
+ * @min_vm_size: the minimum vm size in GB if it's set auto
  * @fragment_size_default: Default PTE fragment size
  * @max_level: max VMPT level
  * @max_bits: max address space size in bits
  *
  */
-void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t vm_size,
+void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t min_vm_size,
                            uint32_t fragment_size_default, unsigned max_level,
                            unsigned max_bits)
 {
+        unsigned int max_size = 1 << (max_bits - 30);
+        unsigned int vm_size;
         uint64_t tmp;
 
         /* adjust vm size first */
         if (amdgpu_vm_size != -1) {
-                unsigned max_size = 1 << (max_bits - 30);
-
                 vm_size = amdgpu_vm_size;
                 if (vm_size > max_size) {
                         dev_warn(adev->dev, "VM size (%d) too large, max is %u GB\n",
                                  amdgpu_vm_size, max_size);
                         vm_size = max_size;
                 }
+        } else {
+                struct sysinfo si;
+                unsigned int phys_ram_gb;
+
+                /* Optimal VM size depends on the amount of physical
+                 * RAM available. Underlying requirements and
+                 * assumptions:
+                 *
+                 *  - Need to map system memory and VRAM from all GPUs
+                 *     - VRAM from other GPUs not known here
+                 *     - Assume VRAM <= system memory
+                 *  - On GFX8 and older, VM space can be segmented for
+                 *    different MTYPEs
+                 *  - Need to allow room for fragmentation, guard pages etc.
+                 *
+                 * This adds up to a rough guess of system memory x3.
+                 * Round up to power of two to maximize the available
+                 * VM size with the given page table size.
+                 */
+                si_meminfo(&si);
+                phys_ram_gb = ((uint64_t)si.totalram * si.mem_unit +
+                               (1 << 30) - 1) >> 30;
+                vm_size = roundup_pow_of_two(
+                        min(max(phys_ram_gb * 3, min_vm_size), max_size));
         }
 
         adev->vm_manager.max_pfn = (uint64_t)vm_size << 18;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 67a15d439ac0..9fa9df0c5e7f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -321,7 +321,7 @@ struct amdgpu_bo_va_mapping *amdgpu_vm_bo_lookup_mapping(struct amdgpu_vm *vm,
 void amdgpu_vm_bo_trace_cs(struct amdgpu_vm *vm, struct ww_acquire_ctx *ticket);
 void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
                       struct amdgpu_bo_va *bo_va);
-void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t vm_size,
+void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t min_vm_size,
                            uint32_t fragment_size_default, unsigned max_level,
                            unsigned max_bits);
 int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 5cd45210113f..5a9534a82d40 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -5664,6 +5664,11 @@ static int gfx_v8_0_set_powergating_state(void *handle,
         if (amdgpu_sriov_vf(adev))
                 return 0;
 
+        if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_SMG |
+                                AMD_PG_SUPPORT_RLC_SMU_HS |
+                                AMD_PG_SUPPORT_CP |
+                                AMD_PG_SUPPORT_GFX_DMG))
+                adev->gfx.rlc.funcs->enter_safe_mode(adev);
         switch (adev->asic_type) {
         case CHIP_CARRIZO:
         case CHIP_STONEY:
@@ -5713,7 +5718,11 @@ static int gfx_v8_0_set_powergating_state(void *handle,
         default:
                 break;
         }
-
+        if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_SMG |
+                                AMD_PG_SUPPORT_RLC_SMU_HS |
+                                AMD_PG_SUPPORT_CP |
+                                AMD_PG_SUPPORT_GFX_DMG))
+                adev->gfx.rlc.funcs->exit_safe_mode(adev);
         return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
index 75317f283c69..ad151fefa41f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
@@ -632,12 +632,6 @@ static void gmc_v6_0_gart_disable(struct amdgpu_device *adev)
         amdgpu_gart_table_vram_unpin(adev);
 }
 
-static void gmc_v6_0_gart_fini(struct amdgpu_device *adev)
-{
-        amdgpu_gart_table_vram_free(adev);
-        amdgpu_gart_fini(adev);
-}
-
 static void gmc_v6_0_vm_decode_fault(struct amdgpu_device *adev,
                                      u32 status, u32 addr, u32 mc_client)
 {
@@ -935,8 +929,9 @@ static int gmc_v6_0_sw_fini(void *handle)
 
         amdgpu_gem_force_release(adev);
         amdgpu_vm_manager_fini(adev);
-        gmc_v6_0_gart_fini(adev);
+        amdgpu_gart_table_vram_free(adev);
         amdgpu_bo_fini(adev);
+        amdgpu_gart_fini(adev);
         release_firmware(adev->gmc.fw);
         adev->gmc.fw = NULL;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index 36dc367c4b45..f8d8a3a73e42 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -747,19 +747,6 @@ static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 }
 
 /**
- * gmc_v7_0_gart_fini - vm fini callback
- *
- * @adev: amdgpu_device pointer
- *
- * Tears down the driver GART/VM setup (CIK).
- */
-static void gmc_v7_0_gart_fini(struct amdgpu_device *adev)
-{
-        amdgpu_gart_table_vram_free(adev);
-        amdgpu_gart_fini(adev);
-}
-
-/**
  * gmc_v7_0_vm_decode_fault - print human readable fault info
  *
  * @adev: amdgpu_device pointer
@@ -1095,8 +1082,9 @@ static int gmc_v7_0_sw_fini(void *handle)
         amdgpu_gem_force_release(adev);
         amdgpu_vm_manager_fini(adev);
         kfree(adev->gmc.vm_fault_info);
-        gmc_v7_0_gart_fini(adev);
+        amdgpu_gart_table_vram_free(adev);
         amdgpu_bo_fini(adev);
+        amdgpu_gart_fini(adev);
         release_firmware(adev->gmc.fw);
         adev->gmc.fw = NULL;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index 70fc97b59b4f..9333109b210d 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -969,19 +969,6 @@ static void gmc_v8_0_gart_disable(struct amdgpu_device *adev)
 }
 
 /**
- * gmc_v8_0_gart_fini - vm fini callback
- *
- * @adev: amdgpu_device pointer
- *
- * Tears down the driver GART/VM setup (CIK).
- */
-static void gmc_v8_0_gart_fini(struct amdgpu_device *adev)
-{
-        amdgpu_gart_table_vram_free(adev);
-        amdgpu_gart_fini(adev);
-}
-
-/**
  * gmc_v8_0_vm_decode_fault - print human readable fault info
  *
  * @adev: amdgpu_device pointer
@@ -1199,8 +1186,9 @@ static int gmc_v8_0_sw_fini(void *handle)
         amdgpu_gem_force_release(adev);
         amdgpu_vm_manager_fini(adev);
         kfree(adev->gmc.vm_fault_info);
-        gmc_v8_0_gart_fini(adev);
+        amdgpu_gart_table_vram_free(adev);
         amdgpu_bo_fini(adev);
+        amdgpu_gart_fini(adev);
         release_firmware(adev->gmc.fw);
         adev->gmc.fw = NULL;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 399a5db27649..72f8018fa2a8 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -942,26 +942,12 @@ static int gmc_v9_0_sw_init(void *handle)
         return 0;
 }
 
-/**
- * gmc_v9_0_gart_fini - vm fini callback
- *
- * @adev: amdgpu_device pointer
- *
- * Tears down the driver GART/VM setup (CIK).
- */
-static void gmc_v9_0_gart_fini(struct amdgpu_device *adev)
-{
-        amdgpu_gart_table_vram_free(adev);
-        amdgpu_gart_fini(adev);
-}
-
 static int gmc_v9_0_sw_fini(void *handle)
 {
         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
         amdgpu_gem_force_release(adev);
         amdgpu_vm_manager_fini(adev);
-        gmc_v9_0_gart_fini(adev);
 
         /*
         * TODO:
@@ -974,7 +960,9 @@ static int gmc_v9_0_sw_fini(void *handle)
         */
         amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, NULL);
 
+        amdgpu_gart_table_vram_free(adev);
         amdgpu_bo_fini(adev);
+        amdgpu_gart_fini(adev);
 
         return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
index 3f57f6463dc8..cb79a93c2eb7 100644
--- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
@@ -65,8 +65,6 @@ static int kv_set_thermal_temperature_range(struct amdgpu_device *adev,
                                             int min_temp, int max_temp);
 static int kv_init_fps_limits(struct amdgpu_device *adev);
 
-static void kv_dpm_powergate_uvd(void *handle, bool gate);
-static void kv_dpm_powergate_vce(struct amdgpu_device *adev, bool gate);
 static void kv_dpm_powergate_samu(struct amdgpu_device *adev, bool gate);
 static void kv_dpm_powergate_acp(struct amdgpu_device *adev, bool gate);
 
@@ -1354,8 +1352,6 @@ static int kv_dpm_enable(struct amdgpu_device *adev)
                 return ret;
         }
 
-        kv_update_current_ps(adev, adev->pm.dpm.boot_ps);
-
         if (adev->irq.installed &&
             amdgpu_is_internal_thermal_sensor(adev->pm.int_thermal_type)) {
                 ret = kv_set_thermal_temperature_range(adev, KV_TEMP_RANGE_MIN, KV_TEMP_RANGE_MAX);
@@ -1374,6 +1370,8 @@ static int kv_dpm_enable(struct amdgpu_device *adev)
 
 static void kv_dpm_disable(struct amdgpu_device *adev)
 {
+        struct kv_power_info *pi = kv_get_pi(adev);
+
         amdgpu_irq_put(adev, &adev->pm.dpm.thermal.irq,
                        AMDGPU_THERMAL_IRQ_LOW_TO_HIGH);
         amdgpu_irq_put(adev, &adev->pm.dpm.thermal.irq,
@@ -1387,8 +1385,10 @@ static void kv_dpm_disable(struct amdgpu_device *adev)
         /* powerup blocks */
         kv_dpm_powergate_acp(adev, false);
         kv_dpm_powergate_samu(adev, false);
-        kv_dpm_powergate_vce(adev, false);
-        kv_dpm_powergate_uvd(adev, false);
+        if (pi->caps_vce_pg) /* power on the VCE block */
+                amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerON);
+        if (pi->caps_uvd_pg) /* power on the UVD block */
+                amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_UVDPowerON);
 
         kv_enable_smc_cac(adev, false);
         kv_enable_didt(adev, false);
@@ -1551,7 +1551,6 @@ static int kv_update_vce_dpm(struct amdgpu_device *adev,
         int ret;
 
         if (amdgpu_new_state->evclk > 0 && amdgpu_current_state->evclk == 0) {
-                kv_dpm_powergate_vce(adev, false);
                 if (pi->caps_stable_p_state)
                         pi->vce_boot_level = table->count - 1;
                 else
@@ -1573,7 +1572,6 @@ static int kv_update_vce_dpm(struct amdgpu_device *adev,
                 kv_enable_vce_dpm(adev, true);
         } else if (amdgpu_new_state->evclk == 0 && amdgpu_current_state->evclk > 0) {
                 kv_enable_vce_dpm(adev, false);
-                kv_dpm_powergate_vce(adev, true);
         }
 
         return 0;
@@ -1702,24 +1700,32 @@ static void kv_dpm_powergate_uvd(void *handle, bool gate)
         }
 }
 
-static void kv_dpm_powergate_vce(struct amdgpu_device *adev, bool gate)
+static void kv_dpm_powergate_vce(void *handle, bool gate)
 {
+        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
         struct kv_power_info *pi = kv_get_pi(adev);
-
-        if (pi->vce_power_gated == gate)
-                return;
+        int ret;
 
         pi->vce_power_gated = gate;
 
-        if (!pi->caps_vce_pg)
-                return;
-
-        if (gate)
-                amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerOFF);
-        else
-                amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerON);
+        if (gate) {
+                /* stop the VCE block */
+                ret = amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
+                                                             AMD_PG_STATE_GATE);
+                kv_enable_vce_dpm(adev, false);
+                if (pi->caps_vce_pg) /* power off the VCE block */
+                        amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerOFF);
+        } else {
+                if (pi->caps_vce_pg) /* power on the VCE block */
+                        amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_VCEPowerON);
+                kv_enable_vce_dpm(adev, true);
+                /* re-init the VCE block */
+                ret = amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE,
+                                                             AMD_PG_STATE_UNGATE);
+        }
 }
 
+
 static void kv_dpm_powergate_samu(struct amdgpu_device *adev, bool gate)
 {
         struct kv_power_info *pi = kv_get_pi(adev);
@@ -3061,7 +3067,7 @@ static int kv_dpm_hw_init(void *handle)
         else
                 adev->pm.dpm_enabled = true;
         mutex_unlock(&adev->pm.mutex);
-
+        amdgpu_pm_compute_clocks(adev);
         return ret;
 }
 
@@ -3313,6 +3319,9 @@ static int kv_set_powergating_by_smu(void *handle,
         case AMD_IP_BLOCK_TYPE_UVD:
                 kv_dpm_powergate_uvd(handle, gate);
                 break;
+        case AMD_IP_BLOCK_TYPE_VCE:
+                kv_dpm_powergate_vce(handle, gate);
+                break;
         default:
                 break;
         }
diff --git a/drivers/gpu/drm/amd/amdgpu/si_dpm.c b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
index db327b412562..1de96995e690 100644
--- a/drivers/gpu/drm/amd/amdgpu/si_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
@@ -6887,7 +6887,6 @@ static int si_dpm_enable(struct amdgpu_device *adev)
 
         si_enable_auto_throttle_source(adev, AMDGPU_DPM_AUTO_THROTTLE_SRC_THERMAL, true);
         si_thermal_start_thermal_controller(adev);
-        ni_update_current_ps(adev, boot_ps);
 
         return 0;
 }
@@ -7763,7 +7762,7 @@ static int si_dpm_hw_init(void *handle)
         else
                 adev->pm.dpm_enabled = true;
         mutex_unlock(&adev->pm.mutex);
-
+        amdgpu_pm_compute_clocks(adev);
         return ret;
 }
 
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
index fbe878ae1e8c..4ba0003a9d32 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
@@ -480,12 +480,20 @@ void pp_rv_set_display_requirement(struct pp_smu *pp,
 {
         struct dc_context *ctx = pp->ctx;
         struct amdgpu_device *adev = ctx->driver_context;
+        void *pp_handle = adev->powerplay.pp_handle;
         const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+        struct pp_display_clock_request clock = {0};
 
-        if (!pp_funcs || !pp_funcs->display_configuration_changed)
+        if (!pp_funcs || !pp_funcs->display_clock_voltage_request)
                 return;
 
-        amdgpu_dpm_display_configuration_changed(adev);
+        clock.clock_type = amd_pp_dcf_clock;
+        clock.clock_freq_in_khz = req->hard_min_dcefclk_khz;
+        pp_funcs->display_clock_voltage_request(pp_handle, &clock);
+
+        clock.clock_type = amd_pp_f_clock;
+        clock.clock_freq_in_khz = req->hard_min_fclk_khz;
+        pp_funcs->display_clock_voltage_request(pp_handle, &clock);
 }
 
 void pp_rv_set_wm_ranges(struct pp_smu *pp,
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 567867915d32..37eaf72ace54 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -754,8 +754,12 @@ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason)
                          * fail-safe mode
                          */
                         if (dc_is_hdmi_signal(link->connector_signal) ||
-                            dc_is_dvi_signal(link->connector_signal))
+                            dc_is_dvi_signal(link->connector_signal)) {
+                                if (prev_sink != NULL)
+                                        dc_sink_release(prev_sink);
+
                                 return false;
+                        }
                 default:
                         break;
                 }
diff --git a/drivers/gpu/drm/i915/gvt/dmabuf.c b/drivers/gpu/drm/i915/gvt/dmabuf.c
index 6e3f56684f4e..51ed99a37803 100644
--- a/drivers/gpu/drm/i915/gvt/dmabuf.c
+++ b/drivers/gpu/drm/i915/gvt/dmabuf.c
@@ -170,20 +170,22 @@ static struct drm_i915_gem_object *vgpu_create_gem(struct drm_device *dev,
                 unsigned int tiling_mode = 0;
                 unsigned int stride = 0;
 
-                switch (info->drm_format_mod << 10) {
-                case PLANE_CTL_TILED_LINEAR:
+                switch (info->drm_format_mod) {
+                case DRM_FORMAT_MOD_LINEAR:
                         tiling_mode = I915_TILING_NONE;
                         break;
-                case PLANE_CTL_TILED_X:
+                case I915_FORMAT_MOD_X_TILED:
                         tiling_mode = I915_TILING_X;
                         stride = info->stride;
                         break;
-                case PLANE_CTL_TILED_Y:
+                case I915_FORMAT_MOD_Y_TILED:
+                case I915_FORMAT_MOD_Yf_TILED:
                         tiling_mode = I915_TILING_Y;
                         stride = info->stride;
                         break;
                 default:
-                        gvt_dbg_core("not supported tiling mode\n");
+                        gvt_dbg_core("invalid drm_format_mod %llx for tiling\n",
+                                     info->drm_format_mod);
                 }
                 obj->tiling_and_stride = tiling_mode | stride;
         } else {
@@ -222,9 +224,26 @@ static int vgpu_get_plane_info(struct drm_device *dev,
                 info->height = p.height;
                 info->stride = p.stride;
                 info->drm_format = p.drm_format;
-                info->drm_format_mod = p.tiled;
+
+                switch (p.tiled) {
+                case PLANE_CTL_TILED_LINEAR:
+                        info->drm_format_mod = DRM_FORMAT_MOD_LINEAR;
+                        break;
+                case PLANE_CTL_TILED_X:
+                        info->drm_format_mod = I915_FORMAT_MOD_X_TILED;
+                        break;
+                case PLANE_CTL_TILED_Y:
+                        info->drm_format_mod = I915_FORMAT_MOD_Y_TILED;
+                        break;
+                case PLANE_CTL_TILED_YF:
+                        info->drm_format_mod = I915_FORMAT_MOD_Yf_TILED;
+                        break;
+                default:
+                        gvt_vgpu_err("invalid tiling mode: %x\n", p.tiled);
+                }
+
                 info->size = (((p.stride * p.height * p.bpp) / 8) +
-                                (PAGE_SIZE - 1)) >> PAGE_SHIFT;
+                              (PAGE_SIZE - 1)) >> PAGE_SHIFT;
         } else if (plane_id == DRM_PLANE_TYPE_CURSOR) {
                 ret = intel_vgpu_decode_cursor_plane(vgpu, &c);
                 if (ret)
diff --git a/drivers/gpu/drm/i915/gvt/fb_decoder.c b/drivers/gpu/drm/i915/gvt/fb_decoder.c
index face664be3e8..481896fb712a 100644
--- a/drivers/gpu/drm/i915/gvt/fb_decoder.c
+++ b/drivers/gpu/drm/i915/gvt/fb_decoder.c
@@ -220,8 +220,7 @@ int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu,
         if (IS_SKYLAKE(dev_priv)
                 || IS_KABYLAKE(dev_priv)
                 || IS_BROXTON(dev_priv)) {
-                plane->tiled = (val & PLANE_CTL_TILED_MASK) >>
-                _PLANE_CTL_TILED_SHIFT;
+                plane->tiled = val & PLANE_CTL_TILED_MASK;
                 fmt = skl_format_to_drm(
                         val & PLANE_CTL_FORMAT_MASK,
                         val & PLANE_CTL_ORDER_RGBX,
@@ -260,7 +259,7 @@ int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu,
                 return  -EINVAL;
         }
 
-        plane->stride = intel_vgpu_get_stride(vgpu, pipe, (plane->tiled << 10),
+        plane->stride = intel_vgpu_get_stride(vgpu, pipe, plane->tiled,
                 (IS_SKYLAKE(dev_priv)
                 || IS_KABYLAKE(dev_priv)
                 || IS_BROXTON(dev_priv)) ?
diff --git a/drivers/gpu/drm/i915/gvt/fb_decoder.h b/drivers/gpu/drm/i915/gvt/fb_decoder.h
index cb055f3c81a2..60c155085029 100644
--- a/drivers/gpu/drm/i915/gvt/fb_decoder.h
+++ b/drivers/gpu/drm/i915/gvt/fb_decoder.h
@@ -101,7 +101,7 @@ struct intel_gvt;
 /* color space conversion and gamma correction are not included */
 struct intel_vgpu_primary_plane_format {
         u8      enabled;        /* plane is enabled */
-        u8      tiled;          /* X-tiled */
+        u32     tiled;          /* tiling mode: linear, X-tiled, Y tiled, etc */
         u8      bpp;            /* bits per pixel */
         u32     hw_format;      /* format field in the PRI_CTL register */
         u32     drm_format;     /* format in DRM definition */
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index 7a58ca555197..72afa518edd9 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -1296,6 +1296,19 @@ static int power_well_ctl_mmio_write(struct intel_vgpu *vgpu,
         return 0;
 }
 
+static int gen9_dbuf_ctl_mmio_write(struct intel_vgpu *vgpu,
+                unsigned int offset, void *p_data, unsigned int bytes)
+{
+        write_vreg(vgpu, offset, p_data, bytes);
+
+        if (vgpu_vreg(vgpu, offset) & DBUF_POWER_REQUEST)
+                vgpu_vreg(vgpu, offset) |= DBUF_POWER_STATE;
+        else
+                vgpu_vreg(vgpu, offset) &= ~DBUF_POWER_STATE;
+
+        return 0;
+}
+
 static int fpga_dbg_mmio_write(struct intel_vgpu *vgpu,
         unsigned int offset, void *p_data, unsigned int bytes)
 {
@@ -1525,9 +1538,15 @@ static int bxt_phy_ctl_family_write(struct intel_vgpu *vgpu,
         u32 v = *(u32 *)p_data;
         u32 data = v & COMMON_RESET_DIS ? BXT_PHY_LANE_ENABLED : 0;
 
-        vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_A) = data;
-        vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_B) = data;
-        vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_C) = data;
+        switch (offset) {
+        case _PHY_CTL_FAMILY_EDP:
+                vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_A) = data;
+                break;
+        case _PHY_CTL_FAMILY_DDI:
+                vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_B) = data;
+                vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_C) = data;
+                break;
+        }
 
         vgpu_vreg(vgpu, offset) = v;
 
@@ -2812,6 +2831,8 @@ static int init_skl_mmio_info(struct intel_gvt *gvt)
         MMIO_DH(HSW_PWR_WELL_CTL_DRIVER(SKL_DISP_PW_MISC_IO), D_SKL_PLUS, NULL,
                 skl_power_well_ctl_write);
 
+        MMIO_DH(DBUF_CTL, D_SKL_PLUS, NULL, gen9_dbuf_ctl_mmio_write);
+
         MMIO_D(_MMIO(0xa210), D_SKL_PLUS);
         MMIO_D(GEN9_MEDIA_PG_IDLE_HYSTERESIS, D_SKL_PLUS);
         MMIO_D(GEN9_RENDER_PG_IDLE_HYSTERESIS, D_SKL_PLUS);
@@ -2987,8 +3008,6 @@ static int init_skl_mmio_info(struct intel_gvt *gvt)
                 NULL, gen9_trtte_write);
         MMIO_DH(_MMIO(0x4dfc), D_SKL_PLUS, NULL, gen9_trtt_chicken_write);
 
-        MMIO_D(_MMIO(0x45008), D_SKL_PLUS);
-
         MMIO_D(_MMIO(0x46430), D_SKL_PLUS);
 
         MMIO_D(_MMIO(0x46520), D_SKL_PLUS);
@@ -3025,7 +3044,9 @@ static int init_skl_mmio_info(struct intel_gvt *gvt)
         MMIO_D(_MMIO(0x44500), D_SKL_PLUS);
         MMIO_DFH(GEN9_CSFE_CHICKEN1_RCS, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
         MMIO_DFH(GEN8_HDC_CHICKEN1, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS,
-                NULL, NULL);
+                 NULL, NULL);
+        MMIO_DFH(GEN9_WM_CHICKEN3, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS,
+                 NULL, NULL);
 
         MMIO_D(_MMIO(0x4ab8), D_KBL);
         MMIO_D(_MMIO(0x2248), D_KBL | D_SKL);
diff --git a/drivers/gpu/drm/i915/gvt/mmio_context.c b/drivers/gpu/drm/i915/gvt/mmio_context.c
index 42e1e6bdcc2c..e872f4847fbe 100644
--- a/drivers/gpu/drm/i915/gvt/mmio_context.c
+++ b/drivers/gpu/drm/i915/gvt/mmio_context.c
@@ -562,11 +562,9 @@ void intel_gvt_switch_mmio(struct intel_vgpu *pre,
          * performace for batch mmio read/write, so we need
          * handle forcewake mannually.
          */
-        intel_runtime_pm_get(dev_priv);
         intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
         switch_mmio(pre, next, ring_id);
         intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
-        intel_runtime_pm_put(dev_priv);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c
index 09d7bb72b4ff..c32e7d5e8629 100644
--- a/drivers/gpu/drm/i915/gvt/sched_policy.c
+++ b/drivers/gpu/drm/i915/gvt/sched_policy.c
@@ -47,11 +47,15 @@ static bool vgpu_has_pending_workload(struct intel_vgpu *vgpu)
         return false;
 }
 
+/* We give 2 seconds higher prio for vGPU during start */
+#define GVT_SCHED_VGPU_PRI_TIME  2
+
 struct vgpu_sched_data {
         struct list_head lru_list;
         struct intel_vgpu *vgpu;
         bool active;
-
+        bool pri_sched;
+        ktime_t pri_time;
         ktime_t sched_in_time;
         ktime_t sched_time;
         ktime_t left_ts;
@@ -183,6 +187,14 @@ static struct intel_vgpu *find_busy_vgpu(struct gvt_sched_data *sched_data)
                 if (!vgpu_has_pending_workload(vgpu_data->vgpu))
                         continue;
 
+                if (vgpu_data->pri_sched) {
+                        if (ktime_before(ktime_get(), vgpu_data->pri_time)) {
+                                vgpu = vgpu_data->vgpu;
+                                break;
+                        } else
+                                vgpu_data->pri_sched = false;
+                }
+
                 /* Return the vGPU only if it has time slice left */
                 if (vgpu_data->left_ts > 0) {
                         vgpu = vgpu_data->vgpu;
@@ -202,6 +214,7 @@ static void tbs_sched_func(struct gvt_sched_data *sched_data)
         struct intel_gvt_workload_scheduler *scheduler = &gvt->scheduler;
         struct vgpu_sched_data *vgpu_data;
         struct intel_vgpu *vgpu = NULL;
+
         /* no active vgpu or has already had a target */
         if (list_empty(&sched_data->lru_runq_head) || scheduler->next_vgpu)
                 goto out;
@@ -209,12 +222,13 @@ static void tbs_sched_func(struct gvt_sched_data *sched_data)
         vgpu = find_busy_vgpu(sched_data);
         if (vgpu) {
                 scheduler->next_vgpu = vgpu;
-
-                /* Move the last used vGPU to the tail of lru_list */
                 vgpu_data = vgpu->sched_data;
-                list_del_init(&vgpu_data->lru_list);
-                list_add_tail(&vgpu_data->lru_list,
-                                &sched_data->lru_runq_head);
+                if (!vgpu_data->pri_sched) {
+                        /* Move the last used vGPU to the tail of lru_list */
+                        list_del_init(&vgpu_data->lru_list);
+                        list_add_tail(&vgpu_data->lru_list,
+                                      &sched_data->lru_runq_head);
+                }
         } else {
                 scheduler->next_vgpu = gvt->idle_vgpu;
         }
@@ -328,11 +342,17 @@ static void tbs_sched_start_schedule(struct intel_vgpu *vgpu)
 {
         struct gvt_sched_data *sched_data = vgpu->gvt->scheduler.sched_data;
         struct vgpu_sched_data *vgpu_data = vgpu->sched_data;
+        ktime_t now;
 
         if (!list_empty(&vgpu_data->lru_list))
                 return;
 
-        list_add_tail(&vgpu_data->lru_list, &sched_data->lru_runq_head);
+        now = ktime_get();
+        vgpu_data->pri_time = ktime_add(now,
+                                        ktime_set(GVT_SCHED_VGPU_PRI_TIME, 0));
+        vgpu_data->pri_sched = true;
+
+        list_add(&vgpu_data->lru_list, &sched_data->lru_runq_head);
 
         if (!hrtimer_active(&sched_data->timer))
                 hrtimer_start(&sched_data->timer, ktime_add_ns(ktime_get(),
@@ -426,6 +446,7 @@ void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu)
                 &vgpu->gvt->scheduler;
         int ring_id;
         struct vgpu_sched_data *vgpu_data = vgpu->sched_data;
+        struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
 
         if (!vgpu_data->active)
                 return;
@@ -444,6 +465,7 @@ void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu)
                 scheduler->current_vgpu = NULL;
         }
 
+        intel_runtime_pm_get(dev_priv);
         spin_lock_bh(&scheduler->mmio_context_lock);
         for (ring_id = 0; ring_id < I915_NUM_ENGINES; ring_id++) {
                 if (scheduler->engine_owner[ring_id] == vgpu) {
@@ -452,5 +474,6 @@ void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu)
                 }
         }
         spin_unlock_bh(&scheduler->mmio_context_lock);
+        intel_runtime_pm_put(dev_priv);
         mutex_unlock(&vgpu->gvt->sched_lock);
 }
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 08ec7446282e..9e63cd47b60f 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -10422,7 +10422,7 @@ enum skl_power_gate {
                                                            _ICL_DSC0_PICTURE_PARAMETER_SET_4_PB, \
                                                            _ICL_DSC0_PICTURE_PARAMETER_SET_4_PC)
 #define ICL_DSC1_PICTURE_PARAMETER_SET_4(pipe)  _MMIO_PIPE((pipe) - PIPE_B, \
-                                                           _ICL_DSC0_PICTURE_PARAMETER_SET_4_PB, \
+                                                           _ICL_DSC1_PICTURE_PARAMETER_SET_4_PB, \
                                                            _ICL_DSC1_PICTURE_PARAMETER_SET_4_PC)
 #define  DSC_INITIAL_DEC_DELAY(dec_delay)       ((dec_delay) << 16)
 #define  DSC_INITIAL_XMIT_DELAY(xmit_delay)     ((xmit_delay) << 0)
@@ -10437,7 +10437,7 @@ enum skl_power_gate {
                                                            _ICL_DSC0_PICTURE_PARAMETER_SET_5_PB, \
                                                            _ICL_DSC0_PICTURE_PARAMETER_SET_5_PC)
 #define ICL_DSC1_PICTURE_PARAMETER_SET_5(pipe)  _MMIO_PIPE((pipe) - PIPE_B, \
-                                                           _ICL_DSC1_PICTURE_PARAMETER_SET_5_PC, \
+                                                           _ICL_DSC1_PICTURE_PARAMETER_SET_5_PB, \
                                                            _ICL_DSC1_PICTURE_PARAMETER_SET_5_PC)
 #define  DSC_SCALE_DEC_INTINT(scale_dec)        ((scale_dec) << 16)
 #define  DSC_SCALE_INC_INT(scale_inc)           ((scale_inc) << 0)
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 11d834f94220..98358b4b36de 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -199,7 +199,6 @@ vma_create(struct drm_i915_gem_object *obj,
                 vma->flags |= I915_VMA_GGTT;
                 list_add(&vma->obj_link, &obj->vma_list);
         } else {
-                i915_ppgtt_get(i915_vm_to_ppgtt(vm));
                 list_add_tail(&vma->obj_link, &obj->vma_list);
         }
 
@@ -807,9 +806,6 @@ static void __i915_vma_destroy(struct i915_vma *vma)
         if (vma->obj)
                 rb_erase(&vma->obj_node, &vma->obj->vma_tree);
 
-        if (!i915_vma_is_ggtt(vma))
-                i915_ppgtt_put(i915_vm_to_ppgtt(vma->vm));
-
         rbtree_postorder_for_each_entry_safe(iter, n, &vma->active, node) {
                 GEM_BUG_ON(i915_gem_active_isset(&iter->base));
                 kfree(iter);
diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index b725835b47ef..769f3f586661 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -962,9 +962,6 @@ void i915_audio_component_init(struct drm_i915_private *dev_priv)
 {
         int ret;
 
-        if (INTEL_INFO(dev_priv)->num_pipes == 0)
-                return;
-
         ret = component_add(dev_priv->drm.dev, &i915_audio_component_bind_ops);
         if (ret < 0) {
                 DRM_ERROR("failed to add audio component (%d)\n", ret);
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 8761513f3532..c9af34861d9e 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2708,7 +2708,8 @@ static void intel_ddi_pre_enable_dp(struct intel_encoder *encoder,
         if (port != PORT_A || INTEL_GEN(dev_priv) >= 9)
                 intel_dp_stop_link_train(intel_dp);
 
-        intel_ddi_enable_pipe_clock(crtc_state);
+        if (!is_mst)
+                intel_ddi_enable_pipe_clock(crtc_state);
 }
 
 static void intel_ddi_pre_enable_hdmi(struct intel_encoder *encoder,
@@ -2810,14 +2811,14 @@ static void intel_ddi_post_disable_dp(struct intel_encoder *encoder,
         bool is_mst = intel_crtc_has_type(old_crtc_state,
                                           INTEL_OUTPUT_DP_MST);
 
-        intel_ddi_disable_pipe_clock(old_crtc_state);
-
-        /*
-         * Power down sink before disabling the port, otherwise we end
-         * up getting interrupts from the sink on detecting link loss.
-         */
-        if (!is_mst)
+        if (!is_mst) {
+                intel_ddi_disable_pipe_clock(old_crtc_state);
+                /*
+                 * Power down sink before disabling the port, otherwise we end
+                 * up getting interrupts from the sink on detecting link loss.
+                 */
                 intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
+        }
 
         intel_disable_ddi_buf(encoder);
 
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ed3fa1c8a983..4a3c8ee9a973 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2988,6 +2988,7 @@ static int skl_check_main_surface(const struct intel_crtc_state *crtc_state,
         int w = drm_rect_width(&plane_state->base.src) >> 16;
         int h = drm_rect_height(&plane_state->base.src) >> 16;
         int dst_x = plane_state->base.dst.x1;
+        int dst_w = drm_rect_width(&plane_state->base.dst);
         int pipe_src_w = crtc_state->pipe_src_w;
         int max_width = skl_max_plane_width(fb, 0, rotation);
         int max_height = 4096;
@@ -3009,10 +3010,10 @@ static int skl_check_main_surface(const struct intel_crtc_state *crtc_state,
          * screen may cause FIFO underflow and display corruption.
          */
         if ((IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) &&
-            (dst_x + w < 4 || dst_x > pipe_src_w - 4)) {
+            (dst_x + dst_w < 4 || dst_x > pipe_src_w - 4)) {
                 DRM_DEBUG_KMS("requested plane X %s position %d invalid (valid range %d-%d)\n",
-                              dst_x + w < 4 ? "end" : "start",
-                              dst_x + w < 4 ? dst_x + w : dst_x,
+                              dst_x + dst_w < 4 ? "end" : "start",
+                              dst_x + dst_w < 4 ? dst_x + dst_w : dst_x,
                               4, pipe_src_w - 4);
                 return -ERANGE;
         }
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index cd0f649b57a5..1193202766a2 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -4160,18 +4160,6 @@ intel_dp_needs_link_retrain(struct intel_dp *intel_dp)
         return !drm_dp_channel_eq_ok(link_status, intel_dp->lane_count);
 }
 
-/*
- * If display is now connected check links status,
- * there has been known issues of link loss triggering
- * long pulse.
- *
- * Some sinks (eg. ASUS PB287Q) seem to perform some
- * weird HPD ping pong during modesets. So we can apparently
- * end up with HPD going low during a modeset, and then
- * going back up soon after. And once that happens we must
- * retrain the link to get a picture. That's in case no
- * userspace component reacted to intermittent HPD dip.
- */
 int intel_dp_retrain_link(struct intel_encoder *encoder,
                           struct drm_modeset_acquire_ctx *ctx)
 {
@@ -4661,7 +4649,8 @@ intel_dp_unset_edid(struct intel_dp *intel_dp)
 }
 
 static int
-intel_dp_long_pulse(struct intel_connector *connector)
+intel_dp_long_pulse(struct intel_connector *connector,
+                    struct drm_modeset_acquire_ctx *ctx)
 {
         struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
         struct intel_dp *intel_dp = intel_attached_dp(&connector->base);
@@ -4720,6 +4709,22 @@ intel_dp_long_pulse(struct intel_connector *connector)
                  */
                 status = connector_status_disconnected;
                 goto out;
+        } else {
+                /*
+                 * If display is now connected check links status,
+                 * there has been known issues of link loss triggering
+                 * long pulse.
+                 *
+                 * Some sinks (eg. ASUS PB287Q) seem to perform some
+                 * weird HPD ping pong during modesets. So we can apparently
+                 * end up with HPD going low during a modeset, and then
+                 * going back up soon after. And once that happens we must
+                 * retrain the link to get a picture. That's in case no
+                 * userspace component reacted to intermittent HPD dip.
+                 */
+                struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
+
+                intel_dp_retrain_link(encoder, ctx);
         }
 
         /*
@@ -4781,7 +4786,7 @@ intel_dp_detect(struct drm_connector *connector,
                                 return ret;
                 }
 
-                status = intel_dp_long_pulse(intel_dp->attached_connector);
+                status = intel_dp_long_pulse(intel_dp->attached_connector, ctx);
         }
 
         intel_dp->detect_done = false;
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 7e3e01607643..4ecd65375603 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -166,6 +166,8 @@ static void intel_mst_post_disable_dp(struct intel_encoder *encoder,
         struct intel_connector *connector =
                 to_intel_connector(old_conn_state->connector);
 
+        intel_ddi_disable_pipe_clock(old_crtc_state);
+
         /* this can fail */
         drm_dp_check_act_status(&intel_dp->mst_mgr);
         /* and this can also fail */
@@ -252,6 +254,8 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder,
         I915_WRITE(DP_TP_STATUS(port), temp);
 
         ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr);
+
+        intel_ddi_enable_pipe_clock(pipe_config);
 }
 
 static void intel_mst_enable_dp(struct intel_encoder *encoder,
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index a9076402dcb0..192972a7d287 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -943,8 +943,12 @@ static int intel_hdmi_hdcp_write(struct intel_digital_port *intel_dig_port,
 
         ret = i2c_transfer(adapter, &msg, 1);
         if (ret == 1)
-                return 0;
-        return ret >= 0 ? -EIO : ret;
+                ret = 0;
+        else if (ret >= 0)
+                ret = -EIO;
+
+        kfree(write_buf);
+        return ret;
 }
 
 static
diff --git a/drivers/gpu/drm/i915/intel_lspcon.c b/drivers/gpu/drm/i915/intel_lspcon.c
index 5dae16ccd9f1..3e085c5f2b81 100644
--- a/drivers/gpu/drm/i915/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/intel_lspcon.c
@@ -74,7 +74,7 @@ static enum drm_lspcon_mode lspcon_wait_mode(struct intel_lspcon *lspcon,
         DRM_DEBUG_KMS("Waiting for LSPCON mode %s to settle\n",
                       lspcon_mode_name(mode));
 
-        wait_for((current_mode = lspcon_get_current_mode(lspcon)) == mode, 100);
+        wait_for((current_mode = lspcon_get_current_mode(lspcon)) == mode, 400);
         if (current_mode != mode)
                 DRM_ERROR("LSPCON mode hasn't settled\n");
 
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index 978782a77629..28d191192945 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -132,6 +132,11 @@ static void mtk_ovl_config(struct mtk_ddp_comp *comp, unsigned int w,
         writel(0x0, comp->regs + DISP_REG_OVL_RST);
 }
 
+static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp *comp)
+{
+        return 4;
+}
+
 static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, unsigned int idx)
 {
         unsigned int reg;
@@ -157,6 +162,11 @@ static void mtk_ovl_layer_off(struct mtk_ddp_comp *comp, unsigned int idx)
 
 static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt)
 {
+        /* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX"
+         * is defined in mediatek HW data sheet.
+         * The alphabet order in XXX is no relation to data
+         * arrangement in memory.
+         */
         switch (fmt) {
         default:
         case DRM_FORMAT_RGB565:
@@ -221,6 +231,7 @@ static const struct mtk_ddp_comp_funcs mtk_disp_ovl_funcs = {
         .stop = mtk_ovl_stop,
         .enable_vblank = mtk_ovl_enable_vblank,
         .disable_vblank = mtk_ovl_disable_vblank,
+        .layer_nr = mtk_ovl_layer_nr,
         .layer_on = mtk_ovl_layer_on,
         .layer_off = mtk_ovl_layer_off,
         .layer_config = mtk_ovl_layer_config,
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index 585943c81e1f..b0a5cffe345a 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -31,14 +31,31 @@
 #define RDMA_REG_UPDATE_INT                             BIT(0)
 #define DISP_REG_RDMA_GLOBAL_CON                0x0010
 #define RDMA_ENGINE_EN                                  BIT(0)
+#define RDMA_MODE_MEMORY                                BIT(1)
 #define DISP_REG_RDMA_SIZE_CON_0                0x0014
+#define RDMA_MATRIX_ENABLE                              BIT(17)
+#define RDMA_MATRIX_INT_MTX_SEL                         GENMASK(23, 20)
+#define RDMA_MATRIX_INT_MTX_BT601_to_RGB                (6 << 20)
 #define DISP_REG_RDMA_SIZE_CON_1                0x0018
 #define DISP_REG_RDMA_TARGET_LINE               0x001c
+#define DISP_RDMA_MEM_CON                       0x0024
+#define MEM_MODE_INPUT_FORMAT_RGB565                    (0x000 << 4)
+#define MEM_MODE_INPUT_FORMAT_RGB888                    (0x001 << 4)
+#define MEM_MODE_INPUT_FORMAT_RGBA8888                  (0x002 << 4)
+#define MEM_MODE_INPUT_FORMAT_ARGB8888                  (0x003 << 4)
+#define MEM_MODE_INPUT_FORMAT_UYVY                      (0x004 << 4)
+#define MEM_MODE_INPUT_FORMAT_YUYV                      (0x005 << 4)
+#define MEM_MODE_INPUT_SWAP                             BIT(8)
+#define DISP_RDMA_MEM_SRC_PITCH                 0x002c
+#define DISP_RDMA_MEM_GMC_SETTING_0             0x0030
 #define DISP_REG_RDMA_FIFO_CON                  0x0040
 #define RDMA_FIFO_UNDERFLOW_EN                          BIT(31)
 #define RDMA_FIFO_PSEUDO_SIZE(bytes)                    (((bytes) / 16) << 16)
 #define RDMA_OUTPUT_VALID_FIFO_THRESHOLD(bytes)         ((bytes) / 16)
 #define RDMA_FIFO_SIZE(rdma)                    ((rdma)->data->fifo_size)
+#define DISP_RDMA_MEM_START_ADDR                0x0f00
+
+#define RDMA_MEM_GMC                            0x40402020
 
 struct mtk_disp_rdma_data {
         unsigned int fifo_size;
@@ -138,12 +155,87 @@ static void mtk_rdma_config(struct mtk_ddp_comp *comp, unsigned int width,
         writel(reg, comp->regs + DISP_REG_RDMA_FIFO_CON);
 }
 
+static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma,
+                                     unsigned int fmt)
+{
+        /* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX"
+         * is defined in mediatek HW data sheet.
+         * The alphabet order in XXX is no relation to data
+         * arrangement in memory.
+         */
+        switch (fmt) {
+        default:
+        case DRM_FORMAT_RGB565:
+                return MEM_MODE_INPUT_FORMAT_RGB565;
+        case DRM_FORMAT_BGR565:
+                return MEM_MODE_INPUT_FORMAT_RGB565 | MEM_MODE_INPUT_SWAP;
+        case DRM_FORMAT_RGB888:
+                return MEM_MODE_INPUT_FORMAT_RGB888;
+        case DRM_FORMAT_BGR888:
+                return MEM_MODE_INPUT_FORMAT_RGB888 | MEM_MODE_INPUT_SWAP;
+        case DRM_FORMAT_RGBX8888:
+        case DRM_FORMAT_RGBA8888:
+                return MEM_MODE_INPUT_FORMAT_ARGB8888;
+        case DRM_FORMAT_BGRX8888:
+        case DRM_FORMAT_BGRA8888:
+                return MEM_MODE_INPUT_FORMAT_ARGB8888 | MEM_MODE_INPUT_SWAP;
+        case DRM_FORMAT_XRGB8888:
+        case DRM_FORMAT_ARGB8888:
+                return MEM_MODE_INPUT_FORMAT_RGBA8888;
+        case DRM_FORMAT_XBGR8888:
+        case DRM_FORMAT_ABGR8888:
+                return MEM_MODE_INPUT_FORMAT_RGBA8888 | MEM_MODE_INPUT_SWAP;
+        case DRM_FORMAT_UYVY:
+                return MEM_MODE_INPUT_FORMAT_UYVY;
+        case DRM_FORMAT_YUYV:
+                return MEM_MODE_INPUT_FORMAT_YUYV;
+        }
+}
+
+static unsigned int mtk_rdma_layer_nr(struct mtk_ddp_comp *comp)
+{
+        return 1;
+}
+
+static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
+                                  struct mtk_plane_state *state)
+{
+        struct mtk_disp_rdma *rdma = comp_to_rdma(comp);
+        struct mtk_plane_pending_state *pending = &state->pending;
+        unsigned int addr = pending->addr;
+        unsigned int pitch = pending->pitch & 0xffff;
+        unsigned int fmt = pending->format;
+        unsigned int con;
+
+        con = rdma_fmt_convert(rdma, fmt);
+        writel_relaxed(con, comp->regs + DISP_RDMA_MEM_CON);
+
+        if (fmt == DRM_FORMAT_UYVY || fmt == DRM_FORMAT_YUYV) {
+                rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0,
+                                 RDMA_MATRIX_ENABLE, RDMA_MATRIX_ENABLE);
+                rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0,
+                                 RDMA_MATRIX_INT_MTX_SEL,
+                                 RDMA_MATRIX_INT_MTX_BT601_to_RGB);
+        } else {
+                rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0,
+                                 RDMA_MATRIX_ENABLE, 0);
+        }
+
+        writel_relaxed(addr, comp->regs + DISP_RDMA_MEM_START_ADDR);
+        writel_relaxed(pitch, comp->regs + DISP_RDMA_MEM_SRC_PITCH);
+        writel(RDMA_MEM_GMC, comp->regs + DISP_RDMA_MEM_GMC_SETTING_0);
+        rdma_update_bits(comp, DISP_REG_RDMA_GLOBAL_CON,
+                         RDMA_MODE_MEMORY, RDMA_MODE_MEMORY);
+}
+
 static const struct mtk_ddp_comp_funcs mtk_disp_rdma_funcs = {
         .config = mtk_rdma_config,
         .start = mtk_rdma_start,
         .stop = mtk_rdma_stop,
         .enable_vblank = mtk_rdma_enable_vblank,
         .disable_vblank = mtk_rdma_disable_vblank,
+        .layer_nr = mtk_rdma_layer_nr,
+        .layer_config = mtk_rdma_layer_config,
 };
 
 static int mtk_disp_rdma_bind(struct device *dev, struct device *master,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 2d6aa150a9ff..0b976dfd04df 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -45,7 +45,8 @@ struct mtk_drm_crtc {
         bool                            pending_needs_vblank;
         struct drm_pending_vblank_event *event;
 
-        struct drm_plane                planes[OVL_LAYER_NR];
+        struct drm_plane                *planes;
+        unsigned int                    layer_nr;
         bool                            pending_planes;
 
         void __iomem                    *config_regs;
@@ -171,9 +172,9 @@ static void mtk_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
 static int mtk_drm_crtc_enable_vblank(struct drm_crtc *crtc)
 {
         struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
-        struct mtk_ddp_comp *ovl = mtk_crtc->ddp_comp[0];
+        struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
 
-        mtk_ddp_comp_enable_vblank(ovl, &mtk_crtc->base);
+        mtk_ddp_comp_enable_vblank(comp, &mtk_crtc->base);
 
         return 0;
 }
@@ -181,9 +182,9 @@ static int mtk_drm_crtc_enable_vblank(struct drm_crtc *crtc)
 static void mtk_drm_crtc_disable_vblank(struct drm_crtc *crtc)
 {
         struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
-        struct mtk_ddp_comp *ovl = mtk_crtc->ddp_comp[0];
+        struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
 
-        mtk_ddp_comp_disable_vblank(ovl);
+        mtk_ddp_comp_disable_vblank(comp);
 }
 
 static int mtk_crtc_ddp_clk_enable(struct mtk_drm_crtc *mtk_crtc)
@@ -286,7 +287,7 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
         }
 
         /* Initially configure all planes */
-        for (i = 0; i < OVL_LAYER_NR; i++) {
+        for (i = 0; i < mtk_crtc->layer_nr; i++) {
                 struct drm_plane *plane = &mtk_crtc->planes[i];
                 struct mtk_plane_state *plane_state;
 
@@ -334,7 +335,7 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc)
 {
         struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
         struct mtk_crtc_state *state = to_mtk_crtc_state(mtk_crtc->base.state);
-        struct mtk_ddp_comp *ovl = mtk_crtc->ddp_comp[0];
+        struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
         unsigned int i;
 
         /*
@@ -343,7 +344,7 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc)
          * queue update module registers on vblank.
          */
         if (state->pending_config) {
-                mtk_ddp_comp_config(ovl, state->pending_width,
+                mtk_ddp_comp_config(comp, state->pending_width,
                                     state->pending_height,
                                     state->pending_vrefresh, 0);
 
@@ -351,14 +352,14 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc)
         }
 
         if (mtk_crtc->pending_planes) {
-                for (i = 0; i < OVL_LAYER_NR; i++) {
+                for (i = 0; i < mtk_crtc->layer_nr; i++) {
                         struct drm_plane *plane = &mtk_crtc->planes[i];
                         struct mtk_plane_state *plane_state;
 
                         plane_state = to_mtk_plane_state(plane->state);
 
                         if (plane_state->pending.config) {
-                                mtk_ddp_comp_layer_config(ovl, i, plane_state);
+                                mtk_ddp_comp_layer_config(comp, i, plane_state);
                                 plane_state->pending.config = false;
                         }
                 }
@@ -370,12 +371,12 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc,
                                        struct drm_crtc_state *old_state)
 {
         struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
-        struct mtk_ddp_comp *ovl = mtk_crtc->ddp_comp[0];
+        struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
         int ret;
 
         DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id);
 
-        ret = mtk_smi_larb_get(ovl->larb_dev);
+        ret = mtk_smi_larb_get(comp->larb_dev);
         if (ret) {
                 DRM_ERROR("Failed to get larb: %d\n", ret);
                 return;
@@ -383,7 +384,7 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc,
 
         ret = mtk_crtc_ddp_hw_init(mtk_crtc);
         if (ret) {
-                mtk_smi_larb_put(ovl->larb_dev);
+                mtk_smi_larb_put(comp->larb_dev);
                 return;
         }
 
@@ -395,7 +396,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc,
                                         struct drm_crtc_state *old_state)
 {
         struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
-        struct mtk_ddp_comp *ovl = mtk_crtc->ddp_comp[0];
+        struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
         int i;
 
         DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id);
@@ -403,7 +404,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc,
                 return;
 
         /* Set all pending plane state to disabled */
-        for (i = 0; i < OVL_LAYER_NR; i++) {
+        for (i = 0; i < mtk_crtc->layer_nr; i++) {
                 struct drm_plane *plane = &mtk_crtc->planes[i];
                 struct mtk_plane_state *plane_state;
 
@@ -418,7 +419,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc,
 
         drm_crtc_vblank_off(crtc);
         mtk_crtc_ddp_hw_fini(mtk_crtc);
-        mtk_smi_larb_put(ovl->larb_dev);
+        mtk_smi_larb_put(comp->larb_dev);
 
         mtk_crtc->enabled = false;
 }
@@ -450,7 +451,7 @@ static void mtk_drm_crtc_atomic_flush(struct drm_crtc *crtc,
 
         if (mtk_crtc->event)
                 mtk_crtc->pending_needs_vblank = true;
-        for (i = 0; i < OVL_LAYER_NR; i++) {
+        for (i = 0; i < mtk_crtc->layer_nr; i++) {
                 struct drm_plane *plane = &mtk_crtc->planes[i];
                 struct mtk_plane_state *plane_state;
 
@@ -516,7 +517,7 @@ err_cleanup_crtc:
         return ret;
 }
 
-void mtk_crtc_ddp_irq(struct drm_crtc *crtc, struct mtk_ddp_comp *ovl)
+void mtk_crtc_ddp_irq(struct drm_crtc *crtc, struct mtk_ddp_comp *comp)
 {
         struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
         struct mtk_drm_private *priv = crtc->dev->dev_private;
@@ -598,7 +599,12 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
                 mtk_crtc->ddp_comp[i] = comp;
         }
 
-        for (zpos = 0; zpos < OVL_LAYER_NR; zpos++) {
+        mtk_crtc->layer_nr = mtk_ddp_comp_layer_nr(mtk_crtc->ddp_comp[0]);
+        mtk_crtc->planes = devm_kzalloc(dev, mtk_crtc->layer_nr *
+                                        sizeof(struct drm_plane),
+                                        GFP_KERNEL);
+
+        for (zpos = 0; zpos < mtk_crtc->layer_nr; zpos++) {
                 type = (zpos == 0) ? DRM_PLANE_TYPE_PRIMARY :
                                 (zpos == 1) ? DRM_PLANE_TYPE_CURSOR :
                                                 DRM_PLANE_TYPE_OVERLAY;
@@ -609,7 +615,8 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
         }
 
         ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, &mtk_crtc->planes[0],
-                                &mtk_crtc->planes[1], pipe);
+                                mtk_crtc->layer_nr > 1 ? &mtk_crtc->planes[1] :
+                                NULL, pipe);
         if (ret < 0)
                 goto unprepare;
         drm_mode_crtc_set_gamma_size(&mtk_crtc->base, MTK_LUT_SIZE);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
index 9d9410c67ae9..091adb2087eb 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
@@ -18,13 +18,12 @@
 #include "mtk_drm_ddp_comp.h"
 #include "mtk_drm_plane.h"
 
-#define OVL_LAYER_NR    4
 #define MTK_LUT_SIZE    512
 #define MTK_MAX_BPC     10
 #define MTK_MIN_BPC     3
 
 void mtk_drm_crtc_commit(struct drm_crtc *crtc);
-void mtk_crtc_ddp_irq(struct drm_crtc *crtc, struct mtk_ddp_comp *ovl);
+void mtk_crtc_ddp_irq(struct drm_crtc *crtc, struct mtk_ddp_comp *comp);
 int mtk_drm_crtc_create(struct drm_device *drm_dev,
                         const enum mtk_ddp_comp_id *path,
                         unsigned int path_len);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
index 87e4191c250e..546b3e3b300b 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
@@ -106,6 +106,8 @@
 #define OVL1_MOUT_EN_COLOR1             0x1
 #define GAMMA_MOUT_EN_RDMA1             0x1
 #define RDMA0_SOUT_DPI0                 0x2
+#define RDMA0_SOUT_DPI1                 0x3
+#define RDMA0_SOUT_DSI1                 0x1
 #define RDMA0_SOUT_DSI2                 0x4
 #define RDMA0_SOUT_DSI3                 0x5
 #define RDMA1_SOUT_DPI0                 0x2
@@ -122,6 +124,8 @@
 #define DPI0_SEL_IN_RDMA2               0x3
 #define DPI1_SEL_IN_RDMA1               (0x1 << 8)
 #define DPI1_SEL_IN_RDMA2               (0x3 << 8)
+#define DSI0_SEL_IN_RDMA1               0x1
+#define DSI0_SEL_IN_RDMA2               0x4
 #define DSI1_SEL_IN_RDMA1               0x1
 #define DSI1_SEL_IN_RDMA2               0x4
 #define DSI2_SEL_IN_RDMA1               (0x1 << 16)
@@ -224,6 +228,12 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
         } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI0) {
                 *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN;
                 value = RDMA0_SOUT_DPI0;
+        } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI1) {
+                *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN;
+                value = RDMA0_SOUT_DPI1;
+        } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI1) {
+                *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN;
+                value = RDMA0_SOUT_DSI1;
         } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI2) {
                 *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN;
                 value = RDMA0_SOUT_DSI2;
@@ -282,6 +292,9 @@ static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur,
         } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) {
                 *addr = DISP_REG_CONFIG_DPI_SEL_IN;
                 value = DPI1_SEL_IN_RDMA1;
+        } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) {
+                *addr = DISP_REG_CONFIG_DSIE_SEL_IN;
+                value = DSI0_SEL_IN_RDMA1;
         } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) {
                 *addr = DISP_REG_CONFIG_DSIO_SEL_IN;
                 value = DSI1_SEL_IN_RDMA1;
@@ -297,8 +310,11 @@ static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur,
         } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI1) {
                 *addr = DISP_REG_CONFIG_DPI_SEL_IN;
                 value = DPI1_SEL_IN_RDMA2;
-        } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) {
+        } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI0) {
                 *addr = DISP_REG_CONFIG_DSIE_SEL_IN;
+                value = DSI0_SEL_IN_RDMA2;
+        } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) {
+                *addr = DISP_REG_CONFIG_DSIO_SEL_IN;
                 value = DSI1_SEL_IN_RDMA2;
         } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI2) {
                 *addr = DISP_REG_CONFIG_DSIE_SEL_IN;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index 7413ffeb3c9d..8399229e6ad2 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -78,6 +78,7 @@ struct mtk_ddp_comp_funcs {
         void (*stop)(struct mtk_ddp_comp *comp);
         void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
         void (*disable_vblank)(struct mtk_ddp_comp *comp);
+        unsigned int (*layer_nr)(struct mtk_ddp_comp *comp);
         void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx);
         void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx);
         void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx,
@@ -128,6 +129,14 @@ static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
                 comp->funcs->disable_vblank(comp);
 }
 
+static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp)
+{
+        if (comp->funcs && comp->funcs->layer_nr)
+                return comp->funcs->layer_nr(comp);
+
+        return 0;
+}
+
 static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp,
                                          unsigned int idx)
 {
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 39721119713b..47ec604289b7 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -381,7 +381,7 @@ static int mtk_drm_bind(struct device *dev)
 err_deinit:
         mtk_drm_kms_deinit(drm);
 err_free:
-        drm_dev_unref(drm);
+        drm_dev_put(drm);
         return ret;
 }
 
@@ -390,7 +390,7 @@ static void mtk_drm_unbind(struct device *dev)
         struct mtk_drm_private *private = dev_get_drvdata(dev);
 
         drm_dev_unregister(private->drm);
-        drm_dev_unref(private->drm);
+        drm_dev_put(private->drm);
         private->drm = NULL;
 }
 
@@ -564,7 +564,7 @@ static int mtk_drm_remove(struct platform_device *pdev)
 
         drm_dev_unregister(drm);
         mtk_drm_kms_deinit(drm);
-        drm_dev_unref(drm);
+        drm_dev_put(drm);
 
         component_master_del(&pdev->dev, &mtk_drm_ops);
         pm_runtime_disable(&pdev->dev);
@@ -580,29 +580,24 @@ static int mtk_drm_sys_suspend(struct device *dev)
 {
         struct mtk_drm_private *private = dev_get_drvdata(dev);
         struct drm_device *drm = private->drm;
+        int ret;
 
-        drm_kms_helper_poll_disable(drm);
-
-        private->suspend_state = drm_atomic_helper_suspend(drm);
-        if (IS_ERR(private->suspend_state)) {
-                drm_kms_helper_poll_enable(drm);
-                return PTR_ERR(private->suspend_state);
-        }
-
+        ret = drm_mode_config_helper_suspend(drm);
         DRM_DEBUG_DRIVER("mtk_drm_sys_suspend\n");
-        return 0;
+
+        return ret;
 }
 
 static int mtk_drm_sys_resume(struct device *dev)
 {
         struct mtk_drm_private *private = dev_get_drvdata(dev);
         struct drm_device *drm = private->drm;
+        int ret;
 
-        drm_atomic_helper_resume(drm, private->suspend_state);
-        drm_kms_helper_poll_enable(drm);
-
+        ret = drm_mode_config_helper_resume(drm);
         DRM_DEBUG_DRIVER("mtk_drm_sys_resume\n");
-        return 0;
+
+        return ret;
 }
 #endif
 
diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c
index 90837f7c7d0f..f4c7516eb989 100644
--- a/drivers/hwmon/adt7475.c
+++ b/drivers/hwmon/adt7475.c
@@ -302,14 +302,18 @@ static inline u16 volt2reg(int channel, long volt, u8 bypass_attn)
         return clamp_val(reg, 0, 1023) & (0xff << 2);
 }
 
-static u16 adt7475_read_word(struct i2c_client *client, int reg)
+static int adt7475_read_word(struct i2c_client *client, int reg)
 {
-        u16 val;
+        int val1, val2;
 
-        val = i2c_smbus_read_byte_data(client, reg);
-        val |= (i2c_smbus_read_byte_data(client, reg + 1) << 8);
+        val1 = i2c_smbus_read_byte_data(client, reg);
+        if (val1 < 0)
+                return val1;
+        val2 = i2c_smbus_read_byte_data(client, reg + 1);
+        if (val2 < 0)
+                return val2;
 
-        return val;
+        return val1 | (val2 << 8);
 }
 
 static void adt7475_write_word(struct i2c_client *client, int reg, u16 val)
@@ -962,13 +966,14 @@ static ssize_t show_pwmfreq(struct device *dev, struct device_attribute *attr,
 {
         struct adt7475_data *data = adt7475_update_device(dev);
         struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
-        int i = clamp_val(data->range[sattr->index] & 0xf, 0,
-                          ARRAY_SIZE(pwmfreq_table) - 1);
+        int idx;
 
         if (IS_ERR(data))
                 return PTR_ERR(data);
+        idx = clamp_val(data->range[sattr->index] & 0xf, 0,
+                        ARRAY_SIZE(pwmfreq_table) - 1);
 
-        return sprintf(buf, "%d\n", pwmfreq_table[i]);
+        return sprintf(buf, "%d\n", pwmfreq_table[idx]);
 }
 
 static ssize_t set_pwmfreq(struct device *dev, struct device_attribute *attr,
@@ -1004,6 +1009,10 @@ static ssize_t pwm_use_point2_pwm_at_crit_show(struct device *dev,
                                         char *buf)
 {
         struct adt7475_data *data = adt7475_update_device(dev);
+
+        if (IS_ERR(data))
+                return PTR_ERR(data);
+
         return sprintf(buf, "%d\n", !!(data->config4 & CONFIG4_MAXDUTY));
 }
 
diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index e9e6aeabbf84..71d3445ba869 100644
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -17,7 +17,7 @@
  * Bi-directional Current/Power Monitor with I2C Interface
  * Datasheet: http://www.ti.com/product/ina230
  *
- * Copyright (C) 2012 Lothar Felten <l-felten@ti.com>
+ * Copyright (C) 2012 Lothar Felten <lothar.felten@gmail.com>
  * Thanks to Jan Volkering
  *
  * This program is free software; you can redistribute it and/or modify
@@ -329,6 +329,15 @@ static int ina2xx_set_shunt(struct ina2xx_data *data, long val)
         return 0;
 }
 
+static ssize_t ina2xx_show_shunt(struct device *dev,
+                              struct device_attribute *da,
+                              char *buf)
+{
+        struct ina2xx_data *data = dev_get_drvdata(dev);
+
+        return snprintf(buf, PAGE_SIZE, "%li\n", data->rshunt);
+}
+
 static ssize_t ina2xx_store_shunt(struct device *dev,
                                   struct device_attribute *da,
                                   const char *buf, size_t count)
@@ -403,7 +412,7 @@ static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, ina2xx_show_value, NULL,
 
 /* shunt resistance */
 static SENSOR_DEVICE_ATTR(shunt_resistor, S_IRUGO | S_IWUSR,
-                          ina2xx_show_value, ina2xx_store_shunt,
+                          ina2xx_show_shunt, ina2xx_store_shunt,
                           INA2XX_CALIBRATION);
 
 /* update interval (ina226 only) */
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index c6bd61e4695a..944f5b63aecd 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -63,6 +63,7 @@
 #include <linux/bitops.h>
 #include <linux/dmi.h>
 #include <linux/io.h>
+#include <linux/nospec.h>
 #include "lm75.h"
 
 #define USE_ALTERNATE
@@ -2689,6 +2690,7 @@ store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
                 return err;
         if (val > NUM_TEMP)
                 return -EINVAL;
+        val = array_index_nospec(val, NUM_TEMP + 1);
         if (val && (!(data->have_temp & BIT(val - 1)) ||
                     !data->temp_src[val - 1]))
                 return -EINVAL;
diff --git a/drivers/hwmon/raspberrypi-hwmon.c b/drivers/hwmon/raspberrypi-hwmon.c
index fb4e4a6bb1f6..be5ba4690895 100644
--- a/drivers/hwmon/raspberrypi-hwmon.c
+++ b/drivers/hwmon/raspberrypi-hwmon.c
@@ -164,3 +164,4 @@ module_platform_driver(rpi_hwmon_driver);
 MODULE_AUTHOR("Stefan Wahren <stefan.wahren@i2se.com>");
 MODULE_DESCRIPTION("Raspberry Pi voltage sensor driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:raspberrypi-hwmon");
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index 6ec65adaba49..c33dcfb87993 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -110,8 +110,8 @@ static int sclhi(struct i2c_algo_bit_data *adap)
         }
 #ifdef DEBUG
         if (jiffies != start && i2c_debug >= 3)
-                pr_debug("i2c-algo-bit: needed %ld jiffies for SCL to go "
-                         "high\n", jiffies - start);
+                pr_debug("i2c-algo-bit: needed %ld jiffies for SCL to go high\n",
+                         jiffies - start);
 #endif
 
 done:
@@ -171,8 +171,9 @@ static int i2c_outb(struct i2c_adapter *i2c_adap, unsigned char c)
                 setsda(adap, sb);
                 udelay((adap->udelay + 1) / 2);
                 if (sclhi(adap) < 0) { /* timed out */
-                        bit_dbg(1, &i2c_adap->dev, "i2c_outb: 0x%02x, "
-                                "timeout at bit #%d\n", (int)c, i);
+                        bit_dbg(1, &i2c_adap->dev,
+                                "i2c_outb: 0x%02x, timeout at bit #%d\n",
+                                (int)c, i);
                         return -ETIMEDOUT;
                 }
                 /* FIXME do arbitration here:
@@ -185,8 +186,8 @@ static int i2c_outb(struct i2c_adapter *i2c_adap, unsigned char c)
         }
         sdahi(adap);
         if (sclhi(adap) < 0) { /* timeout */
-                bit_dbg(1, &i2c_adap->dev, "i2c_outb: 0x%02x, "
-                        "timeout at ack\n", (int)c);
+                bit_dbg(1, &i2c_adap->dev,
+                        "i2c_outb: 0x%02x, timeout at ack\n", (int)c);
                 return -ETIMEDOUT;
         }
 
@@ -215,8 +216,9 @@ static int i2c_inb(struct i2c_adapter *i2c_adap)
         sdahi(adap);
         for (i = 0; i < 8; i++) {
                 if (sclhi(adap) < 0) { /* timeout */
-                        bit_dbg(1, &i2c_adap->dev, "i2c_inb: timeout at bit "
-                                "#%d\n", 7 - i);
+                        bit_dbg(1, &i2c_adap->dev,
+                                "i2c_inb: timeout at bit #%d\n",
+                                7 - i);
                         return -ETIMEDOUT;
                 }
                 indata *= 2;
@@ -265,8 +267,9 @@ static int test_bus(struct i2c_adapter *i2c_adap)
                 goto bailout;
         }
         if (!scl) {
-                printk(KERN_WARNING "%s: SCL unexpected low "
-                       "while pulling SDA low!\n", name);
+                printk(KERN_WARNING
+                       "%s: SCL unexpected low while pulling SDA low!\n",
+                       name);
                 goto bailout;
         }
 
@@ -278,8 +281,9 @@ static int test_bus(struct i2c_adapter *i2c_adap)
                 goto bailout;
         }
         if (!scl) {
-                printk(KERN_WARNING "%s: SCL unexpected low "
-                       "while pulling SDA high!\n", name);
+                printk(KERN_WARNING
+                       "%s: SCL unexpected low while pulling SDA high!\n",
+                       name);
                 goto bailout;
         }
 
@@ -291,8 +295,9 @@ static int test_bus(struct i2c_adapter *i2c_adap)
                 goto bailout;
         }
         if (!sda) {
-                printk(KERN_WARNING "%s: SDA unexpected low "
-                       "while pulling SCL low!\n", name);
+                printk(KERN_WARNING
+                       "%s: SDA unexpected low while pulling SCL low!\n",
+                       name);
                 goto bailout;
         }
 
@@ -304,8 +309,9 @@ static int test_bus(struct i2c_adapter *i2c_adap)
                 goto bailout;
         }
         if (!sda) {
-                printk(KERN_WARNING "%s: SDA unexpected low "
-                       "while pulling SCL high!\n", name);
+                printk(KERN_WARNING
+                       "%s: SDA unexpected low while pulling SCL high!\n",
+                       name);
                 goto bailout;
         }
 
@@ -352,8 +358,8 @@ static int try_address(struct i2c_adapter *i2c_adap,
                 i2c_start(adap);
         }
         if (i && ret)
-                bit_dbg(1, &i2c_adap->dev, "Used %d tries to %s client at "
-                        "0x%02x: %s\n", i + 1,
+                bit_dbg(1, &i2c_adap->dev,
+                        "Used %d tries to %s client at 0x%02x: %s\n", i + 1,
                         addr & 1 ? "read from" : "write to", addr >> 1,
                         ret == 1 ? "success" : "failed, timeout?");
         return ret;
@@ -442,8 +448,9 @@ static int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
                         if (inval <= 0 || inval > I2C_SMBUS_BLOCK_MAX) {
                                 if (!(flags & I2C_M_NO_RD_ACK))
                                         acknak(i2c_adap, 0);
-                                dev_err(&i2c_adap->dev, "readbytes: invalid "
-                                        "block length (%d)\n", inval);
+                                dev_err(&i2c_adap->dev,
+                                        "readbytes: invalid block length (%d)\n",
+                                        inval);
                                 return -EPROTO;
                         }
                         /* The original count value accounts for the extra
@@ -506,8 +513,8 @@ static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
                         return -ENXIO;
                 }
                 if (flags & I2C_M_RD) {
-                        bit_dbg(3, &i2c_adap->dev, "emitting repeated "
-                                "start condition\n");
+                        bit_dbg(3, &i2c_adap->dev,
+                                "emitting repeated start condition\n");
                         i2c_repstart(adap);
                         /* okay, now switch into reading mode */
                         addr |= 0x01;
@@ -564,8 +571,8 @@ static int bit_xfer(struct i2c_adapter *i2c_adap,
                         }
                         ret = bit_doAddress(i2c_adap, pmsg);
                         if ((ret != 0) && !nak_ok) {
-                                bit_dbg(1, &i2c_adap->dev, "NAK from "
-                                        "device addr 0x%02x msg #%d\n",
+                                bit_dbg(1, &i2c_adap->dev,
+                                        "NAK from device addr 0x%02x msg #%d\n",
                                         msgs[i].addr, i);
                                 goto bailout;
                         }
diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c
index e18442b9973a..94d94b4a9a0d 100644
--- a/drivers/i2c/busses/i2c-designware-master.c
+++ b/drivers/i2c/busses/i2c-designware-master.c
@@ -708,7 +708,6 @@ int i2c_dw_probe(struct dw_i2c_dev *dev)
         i2c_set_adapdata(adap, dev);
 
         if (dev->pm_disabled) {
-                dev_pm_syscore_device(dev->dev, true);
                 irq_flags = IRQF_NO_SUSPEND;
         } else {
                 irq_flags = IRQF_SHARED | IRQF_COND_SUSPEND;
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 1a8d2da5b000..b5750fd85125 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -434,6 +434,9 @@ static int dw_i2c_plat_suspend(struct device *dev)
 {
         struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
 
+        if (i_dev->pm_disabled)
+                return 0;
+
         i_dev->disable(i_dev);
         i2c_dw_prepare_clk(i_dev, false);
 
@@ -444,7 +447,9 @@ static int dw_i2c_plat_resume(struct device *dev)
 {
         struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
 
-        i2c_dw_prepare_clk(i_dev, true);
+        if (!i_dev->pm_disabled)
+                i2c_dw_prepare_clk(i_dev, true);
+
         i_dev->init(i_dev);
 
         return 0;
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 941c223f6491..c91e145ef5a5 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -140,6 +140,7 @@
 
 #define SBREG_BAR               0x10
 #define SBREG_SMBCTRL           0xc6000c
+#define SBREG_SMBCTRL_DNV       0xcf000c
 
 /* Host status bits for SMBPCISTS */
 #define SMBPCISTS_INTS          BIT(3)
@@ -1399,7 +1400,11 @@ static void i801_add_tco(struct i801_priv *priv)
         spin_unlock(&p2sb_spinlock);
 
         res = &tco_res[ICH_RES_MEM_OFF];
-        res->start = (resource_size_t)base64_addr + SBREG_SMBCTRL;
+        if (pci_dev->device == PCI_DEVICE_ID_INTEL_DNV_SMBUS)
+                res->start = (resource_size_t)base64_addr + SBREG_SMBCTRL_DNV;
+        else
+                res->start = (resource_size_t)base64_addr + SBREG_SMBCTRL;
+
         res->end = res->start + 3;
         res->flags = IORESOURCE_MEM;
 
@@ -1415,6 +1420,13 @@ static void i801_add_tco(struct i801_priv *priv)
 }
 
 #ifdef CONFIG_ACPI
+static bool i801_acpi_is_smbus_ioport(const struct i801_priv *priv,
+                                      acpi_physical_address address)
+{
+        return address >= priv->smba &&
+               address <= pci_resource_end(priv->pci_dev, SMBBAR);
+}
+
 static acpi_status
 i801_acpi_io_handler(u32 function, acpi_physical_address address, u32 bits,
                      u64 *value, void *handler_context, void *region_context)
@@ -1430,7 +1442,7 @@ i801_acpi_io_handler(u32 function, acpi_physical_address address, u32 bits,
          */
         mutex_lock(&priv->acpi_lock);
 
-        if (!priv->acpi_reserved) {
+        if (!priv->acpi_reserved && i801_acpi_is_smbus_ioport(priv, address)) {
                 priv->acpi_reserved = true;
 
                 dev_warn(&pdev->dev, "BIOS is accessing SMBus registers\n");
diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c
index 6d975f5221ca..06c4c767af32 100644
--- a/drivers/i2c/busses/i2c-imx-lpi2c.c
+++ b/drivers/i2c/busses/i2c-imx-lpi2c.c
@@ -538,7 +538,6 @@ static const struct i2c_algorithm lpi2c_imx_algo = {
 
 static const struct of_device_id lpi2c_imx_of_match[] = {
         { .compatible = "fsl,imx7ulp-lpi2c" },
-        { .compatible = "fsl,imx8dv-lpi2c" },
         { },
 };
 MODULE_DEVICE_TABLE(of, lpi2c_imx_of_match);
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 439e8778f849..818cab14e87c 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -507,8 +507,6 @@ static void sh_mobile_i2c_dma_callback(void *data)
         pd->pos = pd->msg->len;
         pd->stop_after_dma = true;
 
-        i2c_release_dma_safe_msg_buf(pd->msg, pd->dma_buf);
-
         iic_set_clr(pd, ICIC, 0, ICIC_TDMAE | ICIC_RDMAE);
 }
 
@@ -602,8 +600,8 @@ static void sh_mobile_i2c_xfer_dma(struct sh_mobile_i2c_data *pd)
         dma_async_issue_pending(chan);
 }
 
-static int start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg,
-                    bool do_init)
+static void start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg,
+                     bool do_init)
 {
         if (do_init) {
                 /* Initialize channel registers */
@@ -627,7 +625,6 @@ static int start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg,
 
         /* Enable all interrupts to begin with */
         iic_wr(pd, ICIC, ICIC_DTEE | ICIC_WAITE | ICIC_ALE | ICIC_TACKE);
-        return 0;
 }
 
 static int poll_dte(struct sh_mobile_i2c_data *pd)
@@ -698,9 +695,7 @@ static int sh_mobile_i2c_xfer(struct i2c_adapter *adapter,
                 pd->send_stop = i == num - 1 || msg->flags & I2C_M_STOP;
                 pd->stop_after_dma = false;
 
-                err = start_ch(pd, msg, do_start);
-                if (err)
-                        break;
+                start_ch(pd, msg, do_start);
 
                 if (do_start)
                         i2c_op(pd, OP_START, 0);
@@ -709,6 +704,10 @@ static int sh_mobile_i2c_xfer(struct i2c_adapter *adapter,
                 timeout = wait_event_timeout(pd->wait,
                                        pd->sr & (ICSR_TACK | SW_DONE),
                                        adapter->timeout);
+
+                /* 'stop_after_dma' tells if DMA transfer was complete */
+                i2c_put_dma_safe_msg_buf(pd->dma_buf, pd->msg, pd->stop_after_dma);
+
                 if (!timeout) {
                         dev_err(pd->dev, "Transfer request timed out\n");
                         if (pd->dma_direction != DMA_NONE)
diff --git a/drivers/i2c/busses/i2c-uniphier-f.c b/drivers/i2c/busses/i2c-uniphier-f.c
index 9918bdd81619..a403e8579b65 100644
--- a/drivers/i2c/busses/i2c-uniphier-f.c
+++ b/drivers/i2c/busses/i2c-uniphier-f.c
@@ -401,11 +401,8 @@ static int uniphier_fi2c_master_xfer(struct i2c_adapter *adap,
                 return ret;
 
         for (msg = msgs; msg < emsg; msg++) {
-                /* If next message is read, skip the stop condition */
-                bool stop = !(msg + 1 < emsg && msg[1].flags & I2C_M_RD);
-                /* but, force it if I2C_M_STOP is set */
-                if (msg->flags & I2C_M_STOP)
-                        stop = true;
+                /* Emit STOP if it is the last message or I2C_M_STOP is set. */
+                bool stop = (msg + 1 == emsg) || (msg->flags & I2C_M_STOP);
 
                 ret = uniphier_fi2c_master_xfer_one(adap, msg, stop);
                 if (ret)
diff --git a/drivers/i2c/busses/i2c-uniphier.c b/drivers/i2c/busses/i2c-uniphier.c
index bb181b088291..454f914ae66d 100644
--- a/drivers/i2c/busses/i2c-uniphier.c
+++ b/drivers/i2c/busses/i2c-uniphier.c
@@ -248,11 +248,8 @@ static int uniphier_i2c_master_xfer(struct i2c_adapter *adap,
                 return ret;
 
         for (msg = msgs; msg < emsg; msg++) {
-                /* If next message is read, skip the stop condition */
-                bool stop = !(msg + 1 < emsg && msg[1].flags & I2C_M_RD);
-                /* but, force it if I2C_M_STOP is set */
-                if (msg->flags & I2C_M_STOP)
-                        stop = true;
+                /* Emit STOP if it is the last message or I2C_M_STOP is set. */
+                bool stop = (msg + 1 == emsg) || (msg->flags & I2C_M_STOP);
 
                 ret = uniphier_i2c_master_xfer_one(adap, msg, stop);
                 if (ret)
diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 9a71e50d21f1..0c51c0ffdda9 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -532,6 +532,7 @@ static void xiic_start_recv(struct xiic_i2c *i2c)
 {
         u8 rx_watermark;
         struct i2c_msg *msg = i2c->rx_msg = i2c->tx_msg;
+        unsigned long flags;
 
         /* Clear and enable Rx full interrupt. */
         xiic_irq_clr_en(i2c, XIIC_INTR_RX_FULL_MASK | XIIC_INTR_TX_ERROR_MASK);
@@ -547,6 +548,7 @@ static void xiic_start_recv(struct xiic_i2c *i2c)
                 rx_watermark = IIC_RX_FIFO_DEPTH;
         xiic_setreg8(i2c, XIIC_RFD_REG_OFFSET, rx_watermark - 1);
 
+        local_irq_save(flags);
         if (!(msg->flags & I2C_M_NOSTART))
                 /* write the address */
                 xiic_setreg16(i2c, XIIC_DTR_REG_OFFSET,
@@ -556,6 +558,8 @@ static void xiic_start_recv(struct xiic_i2c *i2c)
 
         xiic_setreg16(i2c, XIIC_DTR_REG_OFFSET,
                 msg->len | ((i2c->nmsgs == 1) ? XIIC_TX_DYN_STOP_MASK : 0));
+        local_irq_restore(flags);
+
         if (i2c->nmsgs == 1)
                 /* very last, enable bus not busy as well */
                 xiic_irq_clr_en(i2c, XIIC_INTR_BNB_MASK);
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index f15737763608..9ee9a15e7134 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -2293,21 +2293,22 @@ u8 *i2c_get_dma_safe_msg_buf(struct i2c_msg *msg, unsigned int threshold)
 EXPORT_SYMBOL_GPL(i2c_get_dma_safe_msg_buf);
 
 /**
- * i2c_release_dma_safe_msg_buf - release DMA safe buffer and sync with i2c_msg
- * @msg: the message to be synced with
+ * i2c_put_dma_safe_msg_buf - release DMA safe buffer and sync with i2c_msg
  * @buf: the buffer obtained from i2c_get_dma_safe_msg_buf(). May be NULL.
+ * @msg: the message which the buffer corresponds to
+ * @xferred: bool saying if the message was transferred
  */
-void i2c_release_dma_safe_msg_buf(struct i2c_msg *msg, u8 *buf)
+void i2c_put_dma_safe_msg_buf(u8 *buf, struct i2c_msg *msg, bool xferred)
 {
         if (!buf || buf == msg->buf)
                 return;
 
-        if (msg->flags & I2C_M_RD)
+        if (xferred && msg->flags & I2C_M_RD)
                 memcpy(msg->buf, buf, msg->len);
 
         kfree(buf);
 }
-EXPORT_SYMBOL_GPL(i2c_release_dma_safe_msg_buf);
+EXPORT_SYMBOL_GPL(i2c_put_dma_safe_msg_buf);
 
 MODULE_AUTHOR("Simon G. Vogl <simon@tk.uni-linz.ac.at>");
 MODULE_DESCRIPTION("I2C-Bus main module");
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 316a57530f6d..c2df341ff6fa 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1439,6 +1439,7 @@ static struct irq_chip its_irq_chip = {
  * The consequence of the above is that allocation is cost is low, but
  * freeing is expensive. We assumes that freeing rarely occurs.
  */
+#define ITS_MAX_LPI_NRBITS      16 /* 64K LPIs */
 
 static DEFINE_MUTEX(lpi_range_lock);
 static LIST_HEAD(lpi_range_list);
@@ -1625,7 +1626,8 @@ static int __init its_alloc_lpi_tables(void)
 {
         phys_addr_t paddr;
 
-        lpi_id_bits = GICD_TYPER_ID_BITS(gic_rdists->gicd_typer);
+        lpi_id_bits = min_t(u32, GICD_TYPER_ID_BITS(gic_rdists->gicd_typer),
+                                ITS_MAX_LPI_NRBITS);
         gic_rdists->prop_page = its_allocate_prop_table(GFP_NOWAIT);
         if (!gic_rdists->prop_page) {
                 pr_err("Failed to allocate PROPBASE\n");
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index 94329e03001e..0b2af6e74fc3 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -1276,18 +1276,18 @@ static int resync_info_update(struct mddev *mddev, sector_t lo, sector_t hi)
 static int resync_finish(struct mddev *mddev)
 {
         struct md_cluster_info *cinfo = mddev->cluster_info;
+        int ret = 0;
 
         clear_bit(MD_RESYNCING_REMOTE, &mddev->recovery);
-        dlm_unlock_sync(cinfo->resync_lockres);
 
         /*
          * If resync thread is interrupted so we can't say resync is finished,
          * another node will launch resync thread to continue.
          */
-        if (test_bit(MD_CLOSING, &mddev->flags))
-                return 0;
-        else
-                return resync_info_update(mddev, 0, 0);
+        if (!test_bit(MD_CLOSING, &mddev->flags))
+                ret = resync_info_update(mddev, 0, 0);
+        dlm_unlock_sync(cinfo->resync_lockres);
+        return ret;
 }
 
 static int area_resyncing(struct mddev *mddev, int direction,
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 981898049491..d6f7978b4449 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -4529,11 +4529,12 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr,
                 allow_barrier(conf);
         }
 
+        raise_barrier(conf, 0);
 read_more:
         /* Now schedule reads for blocks from sector_nr to last */
         r10_bio = raid10_alloc_init_r10buf(conf);
         r10_bio->state = 0;
-        raise_barrier(conf, sectors_done != 0);
+        raise_barrier(conf, 1);
         atomic_set(&r10_bio->remaining, 0);
         r10_bio->mddev = mddev;
         r10_bio->sector = sector_nr;
@@ -4629,6 +4630,8 @@ read_more:
         if (sector_nr <= last)
                 goto read_more;
 
+        lower_barrier(conf);
+
         /* Now that we have done the whole section we can
          * update reshape_progress
          */
diff --git a/drivers/md/raid5-log.h b/drivers/md/raid5-log.h
index a001808a2b77..bfb811407061 100644
--- a/drivers/md/raid5-log.h
+++ b/drivers/md/raid5-log.h
@@ -46,6 +46,11 @@ extern int ppl_modify_log(struct r5conf *conf, struct md_rdev *rdev, bool add);
 extern void ppl_quiesce(struct r5conf *conf, int quiesce);
 extern int ppl_handle_flush_request(struct r5l_log *log, struct bio *bio);
 
+static inline bool raid5_has_log(struct r5conf *conf)
+{
+        return test_bit(MD_HAS_JOURNAL, &conf->mddev->flags);
+}
+
 static inline bool raid5_has_ppl(struct r5conf *conf)
 {
         return test_bit(MD_HAS_PPL, &conf->mddev->flags);
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 4ce0d7502fad..e4e98f47865d 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -733,7 +733,7 @@ static bool stripe_can_batch(struct stripe_head *sh)
 {
         struct r5conf *conf = sh->raid_conf;
 
-        if (conf->log || raid5_has_ppl(conf))
+        if (raid5_has_log(conf) || raid5_has_ppl(conf))
                 return false;
         return test_bit(STRIPE_BATCH_READY, &sh->state) &&
                 !test_bit(STRIPE_BITMAP_PENDING, &sh->state) &&
@@ -7737,7 +7737,7 @@ static int raid5_resize(struct mddev *mddev, sector_t sectors)
         sector_t newsize;
         struct r5conf *conf = mddev->private;
 
-        if (conf->log || raid5_has_ppl(conf))
+        if (raid5_has_log(conf) || raid5_has_ppl(conf))
                 return -EINVAL;
         sectors &= ~((sector_t)conf->chunk_sectors - 1);
         newsize = raid5_size(mddev, sectors, mddev->raid_disks);
@@ -7788,7 +7788,7 @@ static int check_reshape(struct mddev *mddev)
 {
         struct r5conf *conf = mddev->private;
 
-        if (conf->log || raid5_has_ppl(conf))
+        if (raid5_has_log(conf) || raid5_has_ppl(conf))
                 return -EINVAL;
         if (mddev->delta_disks == 0 &&
             mddev->new_layout == mddev->layout &&
diff --git a/drivers/memory/ti-aemif.c b/drivers/memory/ti-aemif.c
index 31112f622b88..475e5b3790ed 100644
--- a/drivers/memory/ti-aemif.c
+++ b/drivers/memory/ti-aemif.c
@@ -411,7 +411,7 @@ static int aemif_probe(struct platform_device *pdev)
                         if (ret < 0)
                                 goto error;
                 }
-        } else {
+        } else if (pdata) {
                 for (i = 0; i < pdata->num_sub_devices; i++) {
                         pdata->sub_devices[i].dev.parent = dev;
                         ret = platform_device_register(&pdata->sub_devices[i]);
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index 648eb6743ed5..6edffeed9953 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -238,10 +238,6 @@ static void mmc_mq_exit_request(struct blk_mq_tag_set *set, struct request *req,
         mmc_exit_request(mq->queue, req);
 }
 
-/*
- * We use BLK_MQ_F_BLOCKING and have only 1 hardware queue, which means requests
- * will not be dispatched in parallel.
- */
 static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
                                     const struct blk_mq_queue_data *bd)
 {
@@ -264,7 +260,7 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
 
         spin_lock_irq(q->queue_lock);
 
-        if (mq->recovery_needed) {
+        if (mq->recovery_needed || mq->busy) {
                 spin_unlock_irq(q->queue_lock);
                 return BLK_STS_RESOURCE;
         }
@@ -291,6 +287,9 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
                 break;
         }
 
+        /* Parallel dispatch of requests is not supported at the moment */
+        mq->busy = true;
+
         mq->in_flight[issue_type] += 1;
         get_card = (mmc_tot_in_flight(mq) == 1);
         cqe_retune_ok = (mmc_cqe_qcnt(mq) == 1);
@@ -333,9 +332,12 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
                 mq->in_flight[issue_type] -= 1;
                 if (mmc_tot_in_flight(mq) == 0)
                         put_card = true;
+                mq->busy = false;
                 spin_unlock_irq(q->queue_lock);
                 if (put_card)
                         mmc_put_card(card, &mq->ctx);
+        } else {
+                WRITE_ONCE(mq->busy, false);
         }
 
         return ret;
diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h
index 17e59d50b496..9bf3c9245075 100644
--- a/drivers/mmc/core/queue.h
+++ b/drivers/mmc/core/queue.h
@@ -81,6 +81,7 @@ struct mmc_queue {
         unsigned int            cqe_busy;
 #define MMC_CQE_DCMD_BUSY       BIT(0)
 #define MMC_CQE_QUEUE_FULL      BIT(1)
+        bool                    busy;
         bool                    use_cqe;
         bool                    recovery_needed;
         bool                    in_recovery;
diff --git a/drivers/mmc/host/android-goldfish.c b/drivers/mmc/host/android-goldfish.c
index 294de177632c..61e4e2a213c9 100644
--- a/drivers/mmc/host/android-goldfish.c
+++ b/drivers/mmc/host/android-goldfish.c
@@ -217,7 +217,7 @@ static void goldfish_mmc_xfer_done(struct goldfish_mmc_host *host,
                          * We don't really have DMA, so we need
                          * to copy from our platform driver buffer
                          */
-                        sg_copy_to_buffer(data->sg, 1, host->virt_base,
+                        sg_copy_from_buffer(data->sg, 1, host->virt_base,
                                         data->sg->length);
                 }
                 host->data->bytes_xfered += data->sg->length;
@@ -393,7 +393,7 @@ static void goldfish_mmc_prepare_data(struct goldfish_mmc_host *host,
                  * We don't really have DMA, so we need to copy to our
                  * platform driver buffer
                  */
-                sg_copy_from_buffer(data->sg, 1, host->virt_base,
+                sg_copy_to_buffer(data->sg, 1, host->virt_base,
                                 data->sg->length);
         }
 }
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 5aa2c9404e92..be53044086c7 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -1976,7 +1976,7 @@ static void atmci_read_data_pio(struct atmel_mci *host)
         do {
                 value = atmci_readl(host, ATMCI_RDR);
                 if (likely(offset + 4 <= sg->length)) {
-                        sg_pcopy_to_buffer(sg, 1, &value, sizeof(u32), offset);
+                        sg_pcopy_from_buffer(sg, 1, &value, sizeof(u32), offset);
 
                         offset += 4;
                         nbytes += 4;
@@ -1993,7 +1993,7 @@ static void atmci_read_data_pio(struct atmel_mci *host)
                 } else {
                         unsigned int remaining = sg->length - offset;
 
-                        sg_pcopy_to_buffer(sg, 1, &value, remaining, offset);
+                        sg_pcopy_from_buffer(sg, 1, &value, remaining, offset);
                         nbytes += remaining;
 
                         flush_dcache_page(sg_page(sg));
@@ -2003,7 +2003,7 @@ static void atmci_read_data_pio(struct atmel_mci *host)
                                 goto done;
 
                         offset = 4 - remaining;
-                        sg_pcopy_to_buffer(sg, 1, (u8 *)&value + remaining,
+                        sg_pcopy_from_buffer(sg, 1, (u8 *)&value + remaining,
                                         offset, 0);
                         nbytes += offset;
                 }
@@ -2042,7 +2042,7 @@ static void atmci_write_data_pio(struct atmel_mci *host)
 
         do {
                 if (likely(offset + 4 <= sg->length)) {
-                        sg_pcopy_from_buffer(sg, 1, &value, sizeof(u32), offset);
+                        sg_pcopy_to_buffer(sg, 1, &value, sizeof(u32), offset);
                         atmci_writel(host, ATMCI_TDR, value);
 
                         offset += 4;
@@ -2059,7 +2059,7 @@ static void atmci_write_data_pio(struct atmel_mci *host)
                         unsigned int remaining = sg->length - offset;
 
                         value = 0;
-                        sg_pcopy_from_buffer(sg, 1, &value, remaining, offset);
+                        sg_pcopy_to_buffer(sg, 1, &value, remaining, offset);
                         nbytes += remaining;
 
                         host->sg = sg = sg_next(sg);
@@ -2070,7 +2070,7 @@ static void atmci_write_data_pio(struct atmel_mci *host)
                         }
 
                         offset = 4 - remaining;
-                        sg_pcopy_from_buffer(sg, 1, (u8 *)&value + remaining,
+                        sg_pcopy_to_buffer(sg, 1, (u8 *)&value + remaining,
                                         offset, 0);
                         atmci_writel(host, ATMCI_TDR, value);
                         nbytes += offset;
diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index 35cc0de6be67..ca0b43973769 100644
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -45,14 +45,16 @@
 /* DM_CM_RST */
 #define RST_DTRANRST1           BIT(9)
 #define RST_DTRANRST0           BIT(8)
-#define RST_RESERVED_BITS       GENMASK_ULL(32, 0)
+#define RST_RESERVED_BITS       GENMASK_ULL(31, 0)
 
 /* DM_CM_INFO1 and DM_CM_INFO1_MASK */
 #define INFO1_CLEAR             0
+#define INFO1_MASK_CLEAR        GENMASK_ULL(31, 0)
 #define INFO1_DTRANEND1         BIT(17)
 #define INFO1_DTRANEND0         BIT(16)
 
 /* DM_CM_INFO2 and DM_CM_INFO2_MASK */
+#define INFO2_MASK_CLEAR        GENMASK_ULL(31, 0)
 #define INFO2_DTRANERR1         BIT(17)
 #define INFO2_DTRANERR0         BIT(16)
 
@@ -252,6 +254,12 @@ renesas_sdhi_internal_dmac_request_dma(struct tmio_mmc_host *host,
 {
         struct renesas_sdhi *priv = host_to_priv(host);
 
+        /* Disable DMAC interrupts, we don't use them */
+        renesas_sdhi_internal_dmac_dm_write(host, DM_CM_INFO1_MASK,
+                                            INFO1_MASK_CLEAR);
+        renesas_sdhi_internal_dmac_dm_write(host, DM_CM_INFO2_MASK,
+                                            INFO2_MASK_CLEAR);
+
         /* Each value is set to non-zero to assume "enabling" each DMA */
         host->chan_rx = host->chan_tx = (void *)0xdeadbeaf;
 
diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c
index ca18612c4201..67b2065e7a19 100644
--- a/drivers/mtd/nand/raw/denali.c
+++ b/drivers/mtd/nand/raw/denali.c
@@ -1338,6 +1338,11 @@ int denali_init(struct denali_nand_info *denali)
 
         denali_enable_irq(denali);
         denali_reset_banks(denali);
+        if (!denali->max_banks) {
+                /* Error out earlier if no chip is found for some reasons. */
+                ret = -ENODEV;
+                goto disable_irq;
+        }
 
         denali->active_bank = DENALI_INVALID_BANK;
 
diff --git a/drivers/mtd/nand/raw/docg4.c b/drivers/mtd/nand/raw/docg4.c
index a3f04315c05c..427fcbc1b71c 100644
--- a/drivers/mtd/nand/raw/docg4.c
+++ b/drivers/mtd/nand/raw/docg4.c
@@ -1218,7 +1218,7 @@ static int docg4_resume(struct platform_device *pdev)
         return 0;
 }
 
-static void __init init_mtd_structs(struct mtd_info *mtd)
+static void init_mtd_structs(struct mtd_info *mtd)
 {
         /* initialize mtd and nand data structures */
 
@@ -1290,7 +1290,7 @@ static void __init init_mtd_structs(struct mtd_info *mtd)
 
 }
 
-static int __init read_id_reg(struct mtd_info *mtd)
+static int read_id_reg(struct mtd_info *mtd)
 {
         struct nand_chip *nand = mtd_to_nand(mtd);
         struct docg4_priv *doc = nand_get_controller_data(nand);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 8bb1e38b1681..cecbb1d1f587 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -5913,12 +5913,12 @@ unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp)
         return bp->hw_resc.max_cp_rings;
 }
 
-void bnxt_set_max_func_cp_rings(struct bnxt *bp, unsigned int max)
+unsigned int bnxt_get_max_func_cp_rings_for_en(struct bnxt *bp)
 {
-        bp->hw_resc.max_cp_rings = max;
+        return bp->hw_resc.max_cp_rings - bnxt_get_ulp_msix_num(bp);
 }
 
-unsigned int bnxt_get_max_func_irqs(struct bnxt *bp)
+static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp)
 {
         struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
 
@@ -6684,6 +6684,8 @@ static int bnxt_hwrm_if_change(struct bnxt *bp, bool up)
                 hw_resc->resv_rx_rings = 0;
                 hw_resc->resv_hw_ring_grps = 0;
                 hw_resc->resv_vnics = 0;
+                bp->tx_nr_rings = 0;
+                bp->rx_nr_rings = 0;
         }
         return rc;
 }
@@ -8629,7 +8631,8 @@ static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx,
 
         *max_tx = hw_resc->max_tx_rings;
         *max_rx = hw_resc->max_rx_rings;
-        *max_cp = min_t(int, hw_resc->max_irqs, hw_resc->max_cp_rings);
+        *max_cp = min_t(int, bnxt_get_max_func_cp_rings_for_en(bp),
+                        hw_resc->max_irqs);
         *max_cp = min_t(int, *max_cp, hw_resc->max_stat_ctxs);
         max_ring_grps = hw_resc->max_hw_ring_grps;
         if (BNXT_CHIP_TYPE_NITRO_A0(bp) && BNXT_PF(bp)) {
@@ -8769,20 +8772,25 @@ static int bnxt_init_dflt_ring_mode(struct bnxt *bp)
         if (bp->tx_nr_rings)
                 return 0;
 
+        bnxt_ulp_irq_stop(bp);
+        bnxt_clear_int_mode(bp);
         rc = bnxt_set_dflt_rings(bp, true);
         if (rc) {
                 netdev_err(bp->dev, "Not enough rings available.\n");
-                return rc;
+                goto init_dflt_ring_err;
         }
         rc = bnxt_init_int_mode(bp);
         if (rc)
-                return rc;
+                goto init_dflt_ring_err;
+
         bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
         if (bnxt_rfs_supported(bp) && bnxt_rfs_capable(bp)) {
                 bp->flags |= BNXT_FLAG_RFS;
                 bp->dev->features |= NETIF_F_NTUPLE;
         }
-        return 0;
+init_dflt_ring_err:
+        bnxt_ulp_irq_restart(bp, rc);
+        return rc;
 }
 
 int bnxt_restore_pf_fw_resources(struct bnxt *bp)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index fefa011320e0..bde384630a75 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1481,8 +1481,7 @@ int bnxt_hwrm_set_coal(struct bnxt *);
 unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp);
 void bnxt_set_max_func_stat_ctxs(struct bnxt *bp, unsigned int max);
 unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp);
-void bnxt_set_max_func_cp_rings(struct bnxt *bp, unsigned int max);
-unsigned int bnxt_get_max_func_irqs(struct bnxt *bp);
+unsigned int bnxt_get_max_func_cp_rings_for_en(struct bnxt *bp);
 int bnxt_get_avail_msix(struct bnxt *bp, int num);
 int bnxt_reserve_rings(struct bnxt *bp);
 void bnxt_tx_disable(struct bnxt *bp);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
index 6d583bcd2a81..fcd085a9853a 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
@@ -451,7 +451,7 @@ static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs)
 
         bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_RESOURCE_CFG, -1, -1);
 
-        vf_cp_rings = hw_resc->max_cp_rings - bp->cp_nr_rings;
+        vf_cp_rings = bnxt_get_max_func_cp_rings_for_en(bp) - bp->cp_nr_rings;
         vf_stat_ctx = hw_resc->max_stat_ctxs - bp->num_stat_ctxs;
         if (bp->flags & BNXT_FLAG_AGG_RINGS)
                 vf_rx_rings = hw_resc->max_rx_rings - bp->rx_nr_rings * 2;
@@ -549,7 +549,8 @@ static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs)
         max_stat_ctxs = hw_resc->max_stat_ctxs;
 
         /* Remaining rings are distributed equally amongs VF's for now */
-        vf_cp_rings = (hw_resc->max_cp_rings - bp->cp_nr_rings) / num_vfs;
+        vf_cp_rings = (bnxt_get_max_func_cp_rings_for_en(bp) -
+                       bp->cp_nr_rings) / num_vfs;
         vf_stat_ctx = (max_stat_ctxs - bp->num_stat_ctxs) / num_vfs;
         if (bp->flags & BNXT_FLAG_AGG_RINGS)
                 vf_rx_rings = (hw_resc->max_rx_rings - bp->rx_nr_rings * 2) /
@@ -643,7 +644,7 @@ static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs)
          */
         vfs_supported = *num_vfs;
 
-        avail_cp = hw_resc->max_cp_rings - bp->cp_nr_rings;
+        avail_cp = bnxt_get_max_func_cp_rings_for_en(bp) - bp->cp_nr_rings;
         avail_stat = hw_resc->max_stat_ctxs - bp->num_stat_ctxs;
         avail_cp = min_t(int, avail_cp, avail_stat);
 
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
index 139d96c5a023..092c817f8f11 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
@@ -110,16 +110,14 @@ static int bnxt_tc_parse_actions(struct bnxt *bp,
                                  struct tcf_exts *tc_exts)
 {
         const struct tc_action *tc_act;
-        LIST_HEAD(tc_actions);
-        int rc;
+        int i, rc;
 
         if (!tcf_exts_has_actions(tc_exts)) {
                 netdev_info(bp->dev, "no actions");
                 return -EINVAL;
         }
 
-        tcf_exts_to_list(tc_exts, &tc_actions);
-        list_for_each_entry(tc_act, &tc_actions, list) {
+        tcf_exts_for_each_action(i, tc_act, tc_exts) {
                 /* Drop action */
                 if (is_tcf_gact_shot(tc_act)) {
                         actions->flags |= BNXT_TC_ACTION_FLAG_DROP;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
index c37b2842f972..beee61292d5e 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
@@ -169,7 +169,6 @@ static int bnxt_req_msix_vecs(struct bnxt_en_dev *edev, int ulp_id,
                 edev->ulp_tbl[ulp_id].msix_requested = avail_msix;
         }
         bnxt_fill_msix_vecs(bp, ent);
-        bnxt_set_max_func_cp_rings(bp, max_cp_rings - avail_msix);
         edev->flags |= BNXT_EN_FLAG_MSIX_REQUESTED;
         return avail_msix;
 }
@@ -178,7 +177,6 @@ static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, int ulp_id)
 {
         struct net_device *dev = edev->net;
         struct bnxt *bp = netdev_priv(dev);
-        int max_cp_rings, msix_requested;
 
         ASSERT_RTNL();
         if (ulp_id != BNXT_ROCE_ULP)
@@ -187,9 +185,6 @@ static int bnxt_free_msix_vecs(struct bnxt_en_dev *edev, int ulp_id)
         if (!(edev->flags & BNXT_EN_FLAG_MSIX_REQUESTED))
                 return 0;
 
-        max_cp_rings = bnxt_get_max_func_cp_rings(bp);
-        msix_requested = edev->ulp_tbl[ulp_id].msix_requested;
-        bnxt_set_max_func_cp_rings(bp, max_cp_rings + msix_requested);
         edev->ulp_tbl[ulp_id].msix_requested = 0;
         edev->flags &= ~BNXT_EN_FLAG_MSIX_REQUESTED;
         if (netif_running(dev)) {
@@ -220,21 +215,6 @@ int bnxt_get_ulp_msix_base(struct bnxt *bp)
         return 0;
 }
 
-void bnxt_subtract_ulp_resources(struct bnxt *bp, int ulp_id)
-{
-        ASSERT_RTNL();
-        if (bnxt_ulp_registered(bp->edev, ulp_id)) {
-                struct bnxt_en_dev *edev = bp->edev;
-                unsigned int msix_req, max;
-
-                msix_req = edev->ulp_tbl[ulp_id].msix_requested;
-                max = bnxt_get_max_func_cp_rings(bp);
-                bnxt_set_max_func_cp_rings(bp, max - msix_req);
-                max = bnxt_get_max_func_stat_ctxs(bp);
-                bnxt_set_max_func_stat_ctxs(bp, max - 1);
-        }
-}
-
 static int bnxt_send_msg(struct bnxt_en_dev *edev, int ulp_id,
                          struct bnxt_fw_msg *fw_msg)
 {
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h
index df48ac71729f..d9bea37cd211 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h
@@ -90,7 +90,6 @@ static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id)
 
 int bnxt_get_ulp_msix_num(struct bnxt *bp);
 int bnxt_get_ulp_msix_base(struct bnxt *bp);
-void bnxt_subtract_ulp_resources(struct bnxt *bp, int ulp_id);
 void bnxt_ulp_stop(struct bnxt *bp);
 void bnxt_ulp_start(struct bnxt *bp);
 void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs);
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
index b773bc07edf7..14b49612aa86 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -186,6 +186,9 @@ struct bcmgenet_mib_counters {
 #define UMAC_MAC1                       0x010
 #define UMAC_MAX_FRAME_LEN              0x014
 
+#define UMAC_MODE                       0x44
+#define  MODE_LINK_STATUS               (1 << 5)
+
 #define UMAC_EEE_CTRL                   0x064
 #define  EN_LPI_RX_PAUSE                (1 << 0)
 #define  EN_LPI_TX_PFC                  (1 << 1)
diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index 5333274a283c..4241ae928d4a 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -115,8 +115,14 @@ void bcmgenet_mii_setup(struct net_device *dev)
 static int bcmgenet_fixed_phy_link_update(struct net_device *dev,
                                           struct fixed_phy_status *status)
 {
-        if (dev && dev->phydev && status)
-                status->link = dev->phydev->link;
+        struct bcmgenet_priv *priv;
+        u32 reg;
+
+        if (dev && dev->phydev && status) {
+                priv = netdev_priv(dev);
+                reg = bcmgenet_umac_readl(priv, UMAC_MODE);
+                status->link = !!(reg & MODE_LINK_STATUS);
+        }
 
         return 0;
 }
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index dc09f9a8a49b..16e4ef7d7185 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -482,11 +482,6 @@ static int macb_mii_probe(struct net_device *dev)
 
         if (np) {
                 if (of_phy_is_fixed_link(np)) {
-                        if (of_phy_register_fixed_link(np) < 0) {
-                                dev_err(&bp->pdev->dev,
-                                        "broken fixed-link specification\n");
-                                return -ENODEV;
-                        }
                         bp->phy_node = of_node_get(np);
                 } else {
                         bp->phy_node = of_parse_phandle(np, "phy-handle", 0);
@@ -569,7 +564,7 @@ static int macb_mii_init(struct macb *bp)
 {
         struct macb_platform_data *pdata;
         struct device_node *np;
-        int err;
+        int err = -ENXIO;
 
         /* Enable management port */
         macb_writel(bp, NCR, MACB_BIT(MPE));
@@ -592,12 +587,23 @@ static int macb_mii_init(struct macb *bp)
         dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
 
         np = bp->pdev->dev.of_node;
-        if (pdata)
-                bp->mii_bus->phy_mask = pdata->phy_mask;
+        if (np && of_phy_is_fixed_link(np)) {
+                if (of_phy_register_fixed_link(np) < 0) {
+                        dev_err(&bp->pdev->dev,
+                                "broken fixed-link specification %pOF\n", np);
+                        goto err_out_free_mdiobus;
+                }
+
+                err = mdiobus_register(bp->mii_bus);
+        } else {
+                if (pdata)
+                        bp->mii_bus->phy_mask = pdata->phy_mask;
+
+                err = of_mdiobus_register(bp->mii_bus, np);
+        }
 
-        err = of_mdiobus_register(bp->mii_bus, np);
         if (err)
-                goto err_out_free_mdiobus;
+                goto err_out_free_fixed_link;
 
         err = macb_mii_probe(bp->dev);
         if (err)
@@ -607,6 +613,7 @@ static int macb_mii_init(struct macb *bp)
 
 err_out_unregister_bus:
         mdiobus_unregister(bp->mii_bus);
+err_out_free_fixed_link:
         if (np && of_phy_is_fixed_link(np))
                 of_phy_deregister_fixed_link(np);
 err_out_free_mdiobus:
@@ -642,7 +649,7 @@ static int macb_halt_tx(struct macb *bp)
                 if (!(status & MACB_BIT(TGO)))
                         return 0;
 
-                usleep_range(10, 250);
+                udelay(250);
         } while (time_before(halt_time, timeout));
 
         return -ETIMEDOUT;
@@ -2028,14 +2035,17 @@ static void macb_reset_hw(struct macb *bp)
 {
         struct macb_queue *queue;
         unsigned int q;
+        u32 ctrl = macb_readl(bp, NCR);
 
         /* Disable RX and TX (XXX: Should we halt the transmission
          * more gracefully?)
          */
-        macb_writel(bp, NCR, 0);
+        ctrl &= ~(MACB_BIT(RE) | MACB_BIT(TE));
 
         /* Clear the stats registers (XXX: Update stats first?) */
-        macb_writel(bp, NCR, MACB_BIT(CLRSTAT));
+        ctrl |= MACB_BIT(CLRSTAT);
+
+        macb_writel(bp, NCR, ctrl);
 
         /* Clear all status flags */
         macb_writel(bp, TSR, -1);
@@ -2223,7 +2233,7 @@ static void macb_init_hw(struct macb *bp)
         }
 
         /* Enable TX and RX */
-        macb_writel(bp, NCR, MACB_BIT(RE) | MACB_BIT(TE) | MACB_BIT(MPE));
+        macb_writel(bp, NCR, macb_readl(bp, NCR) | MACB_BIT(RE) | MACB_BIT(TE));
 }
 
 /* The hash address register is 64 bits long and takes up two
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
index 623f73dd7738..c116f96956fe 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
@@ -417,10 +417,9 @@ static void cxgb4_process_flow_actions(struct net_device *in,
                                        struct ch_filter_specification *fs)
 {
         const struct tc_action *a;
-        LIST_HEAD(actions);
+        int i;
 
-        tcf_exts_to_list(cls->exts, &actions);
-        list_for_each_entry(a, &actions, list) {
+        tcf_exts_for_each_action(i, a, cls->exts) {
                 if (is_tcf_gact_ok(a)) {
                         fs->action = FILTER_PASS;
                 } else if (is_tcf_gact_shot(a)) {
@@ -591,10 +590,9 @@ static int cxgb4_validate_flow_actions(struct net_device *dev,
         bool act_redir = false;
         bool act_pedit = false;
         bool act_vlan = false;
-        LIST_HEAD(actions);
+        int i;
 
-        tcf_exts_to_list(cls->exts, &actions);
-        list_for_each_entry(a, &actions, list) {
+        tcf_exts_for_each_action(i, a, cls->exts) {
                 if (is_tcf_gact_ok(a)) {
                         /* Do nothing */
                 } else if (is_tcf_gact_shot(a)) {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c
index 18eb2aedd4cb..c7d2b4dc7568 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c
@@ -93,14 +93,13 @@ static int fill_action_fields(struct adapter *adap,
         unsigned int num_actions = 0;
         const struct tc_action *a;
         struct tcf_exts *exts;
-        LIST_HEAD(actions);
+        int i;
 
         exts = cls->knode.exts;
         if (!tcf_exts_has_actions(exts))
                 return -EINVAL;
 
-        tcf_exts_to_list(exts, &actions);
-        list_for_each_entry(a, &actions, list) {
+        tcf_exts_for_each_action(i, a, exts) {
                 /* Don't allow more than one action per rule. */
                 if (num_actions)
                         return -EINVAL;
diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.h b/drivers/net/ethernet/hisilicon/hns/hnae.h
index fa5b30f547f6..08a750fb60c4 100644
--- a/drivers/net/ethernet/hisilicon/hns/hnae.h
+++ b/drivers/net/ethernet/hisilicon/hns/hnae.h
@@ -220,10 +220,10 @@ struct hnae_desc_cb {
 
         /* priv data for the desc, e.g. skb when use with ip stack*/
         void *priv;
-        u16 page_offset;
-        u16 reuse_flag;
+        u32 page_offset;
+        u32 length;     /* length of the buffer */
 
-        u16 length;     /* length of the buffer */
+        u16 reuse_flag;
 
        /* desc type, used by the ring user to mark the type of the priv data */
         u16 type;
@@ -486,6 +486,8 @@ struct hnae_ae_ops {
                         u8 *auto_neg, u16 *speed, u8 *duplex);
         void (*toggle_ring_irq)(struct hnae_ring *ring, u32 val);
         void (*adjust_link)(struct hnae_handle *handle, int speed, int duplex);
+        bool (*need_adjust_link)(struct hnae_handle *handle,
+                                 int speed, int duplex);
         int (*set_loopback)(struct hnae_handle *handle,
                             enum hnae_loop loop_mode, int en);
         void (*get_ring_bdnum_limit)(struct hnae_queue *queue,
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
index e6aad30e7e69..b52029e26d15 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
@@ -155,6 +155,41 @@ static void hns_ae_put_handle(struct hnae_handle *handle)
                 hns_ae_get_ring_pair(handle->qs[i])->used_by_vf = 0;
 }
 
+static int hns_ae_wait_flow_down(struct hnae_handle *handle)
+{
+        struct dsaf_device *dsaf_dev;
+        struct hns_ppe_cb *ppe_cb;
+        struct hnae_vf_cb *vf_cb;
+        int ret;
+        int i;
+
+        for (i = 0; i < handle->q_num; i++) {
+                ret = hns_rcb_wait_tx_ring_clean(handle->qs[i]);
+                if (ret)
+                        return ret;
+        }
+
+        ppe_cb = hns_get_ppe_cb(handle);
+        ret = hns_ppe_wait_tx_fifo_clean(ppe_cb);
+        if (ret)
+                return ret;
+
+        dsaf_dev = hns_ae_get_dsaf_dev(handle->dev);
+        if (!dsaf_dev)
+                return -EINVAL;
+        ret = hns_dsaf_wait_pkt_clean(dsaf_dev, handle->dport_id);
+        if (ret)
+                return ret;
+
+        vf_cb = hns_ae_get_vf_cb(handle);
+        ret = hns_mac_wait_fifo_clean(vf_cb->mac_cb);
+        if (ret)
+                return ret;
+
+        mdelay(10);
+        return 0;
+}
+
 static void hns_ae_ring_enable_all(struct hnae_handle *handle, int val)
 {
         int q_num = handle->q_num;
@@ -399,12 +434,41 @@ static int hns_ae_get_mac_info(struct hnae_handle *handle,
         return hns_mac_get_port_info(mac_cb, auto_neg, speed, duplex);
 }
 
+static bool hns_ae_need_adjust_link(struct hnae_handle *handle, int speed,
+                                    int duplex)
+{
+        struct hns_mac_cb *mac_cb = hns_get_mac_cb(handle);
+
+        return hns_mac_need_adjust_link(mac_cb, speed, duplex);
+}
+
 static void hns_ae_adjust_link(struct hnae_handle *handle, int speed,
                                int duplex)
 {
         struct hns_mac_cb *mac_cb = hns_get_mac_cb(handle);
 
-        hns_mac_adjust_link(mac_cb, speed, duplex);
+        switch (mac_cb->dsaf_dev->dsaf_ver) {
+        case AE_VERSION_1:
+                hns_mac_adjust_link(mac_cb, speed, duplex);
+                break;
+
+        case AE_VERSION_2:
+                /* chip need to clear all pkt inside */
+                hns_mac_disable(mac_cb, MAC_COMM_MODE_RX);
+                if (hns_ae_wait_flow_down(handle)) {
+                        hns_mac_enable(mac_cb, MAC_COMM_MODE_RX);
+                        break;
+                }
+
+                hns_mac_adjust_link(mac_cb, speed, duplex);
+                hns_mac_enable(mac_cb, MAC_COMM_MODE_RX);
+                break;
+
+        default:
+                break;
+        }
+
+        return;
 }
 
 static void hns_ae_get_ring_bdnum_limit(struct hnae_queue *queue,
@@ -902,6 +966,7 @@ static struct hnae_ae_ops hns_dsaf_ops = {
         .get_status = hns_ae_get_link_status,
         .get_info = hns_ae_get_mac_info,
         .adjust_link = hns_ae_adjust_link,
+        .need_adjust_link = hns_ae_need_adjust_link,
         .set_loopback = hns_ae_config_loopback,
         .get_ring_bdnum_limit = hns_ae_get_ring_bdnum_limit,
         .get_pauseparam = hns_ae_get_pauseparam,
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
index 5488c6e89f21..09e4061d1fa6 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
@@ -257,6 +257,16 @@ static void hns_gmac_get_pausefrm_cfg(void *mac_drv, u32 *rx_pause_en,
         *tx_pause_en = dsaf_get_bit(pause_en, GMAC_PAUSE_EN_TX_FDFC_B);
 }
 
+static bool hns_gmac_need_adjust_link(void *mac_drv, enum mac_speed speed,
+                                      int duplex)
+{
+        struct mac_driver *drv = (struct mac_driver *)mac_drv;
+        struct hns_mac_cb *mac_cb = drv->mac_cb;
+
+        return (mac_cb->speed != speed) ||
+                (mac_cb->half_duplex == duplex);
+}
+
 static int hns_gmac_adjust_link(void *mac_drv, enum mac_speed speed,
                                 u32 full_duplex)
 {
@@ -309,6 +319,30 @@ static void hns_gmac_set_promisc(void *mac_drv, u8 en)
                 hns_gmac_set_uc_match(mac_drv, en);
 }
 
+int hns_gmac_wait_fifo_clean(void *mac_drv)
+{
+        struct mac_driver *drv = (struct mac_driver *)mac_drv;
+        int wait_cnt;
+        u32 val;
+
+        wait_cnt = 0;
+        while (wait_cnt++ < HNS_MAX_WAIT_CNT) {
+                val = dsaf_read_dev(drv, GMAC_FIFO_STATE_REG);
+                /* bit5~bit0 is not send complete pkts */
+                if ((val & 0x3f) == 0)
+                        break;
+                usleep_range(100, 200);
+        }
+
+        if (wait_cnt >= HNS_MAX_WAIT_CNT) {
+                dev_err(drv->dev,
+                        "hns ge %d fifo was not idle.\n", drv->mac_id);
+                return -EBUSY;
+        }
+
+        return 0;
+}
+
 static void hns_gmac_init(void *mac_drv)
 {
         u32 port;
@@ -690,6 +724,7 @@ void *hns_gmac_config(struct hns_mac_cb *mac_cb, struct mac_params *mac_param)
         mac_drv->mac_disable = hns_gmac_disable;
         mac_drv->mac_free = hns_gmac_free;
         mac_drv->adjust_link = hns_gmac_adjust_link;
+        mac_drv->need_adjust_link = hns_gmac_need_adjust_link;
         mac_drv->set_tx_auto_pause_frames = hns_gmac_set_tx_auto_pause_frames;
         mac_drv->config_max_frame_length = hns_gmac_config_max_frame_length;
         mac_drv->mac_pausefrm_cfg = hns_gmac_pause_frm_cfg;
@@ -717,6 +752,7 @@ void *hns_gmac_config(struct hns_mac_cb *mac_cb, struct mac_params *mac_param)
         mac_drv->get_strings = hns_gmac_get_strings;
         mac_drv->update_stats = hns_gmac_update_stats;
         mac_drv->set_promiscuous = hns_gmac_set_promisc;
+        mac_drv->wait_fifo_clean = hns_gmac_wait_fifo_clean;
 
         return (void *)mac_drv;
 }
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
index 1c2326bd76e2..6ed6f142427e 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
@@ -114,6 +114,26 @@ int hns_mac_get_port_info(struct hns_mac_cb *mac_cb,
         return 0;
 }
 
+/**
+ *hns_mac_is_adjust_link - check is need change mac speed and duplex register
+ *@mac_cb: mac device
+ *@speed: phy device speed
+ *@duplex:phy device duplex
+ *
+ */
+bool hns_mac_need_adjust_link(struct hns_mac_cb *mac_cb, int speed, int duplex)
+{
+        struct mac_driver *mac_ctrl_drv;
+
+        mac_ctrl_drv = (struct mac_driver *)(mac_cb->priv.mac);
+
+        if (mac_ctrl_drv->need_adjust_link)
+                return mac_ctrl_drv->need_adjust_link(mac_ctrl_drv,
+                        (enum mac_speed)speed, duplex);
+        else
+                return true;
+}
+
 void hns_mac_adjust_link(struct hns_mac_cb *mac_cb, int speed, int duplex)
 {
         int ret;
@@ -430,6 +450,16 @@ int hns_mac_vm_config_bc_en(struct hns_mac_cb *mac_cb, u32 vmid, bool enable)
         return 0;
 }
 
+int hns_mac_wait_fifo_clean(struct hns_mac_cb *mac_cb)
+{
+        struct mac_driver *drv = hns_mac_get_drv(mac_cb);
+
+        if (drv->wait_fifo_clean)
+                return drv->wait_fifo_clean(drv);
+
+        return 0;
+}
+
 void hns_mac_reset(struct hns_mac_cb *mac_cb)
 {
         struct mac_driver *drv = hns_mac_get_drv(mac_cb);
@@ -998,6 +1028,20 @@ static int hns_mac_get_max_port_num(struct dsaf_device *dsaf_dev)
                 return  DSAF_MAX_PORT_NUM;
 }
 
+void hns_mac_enable(struct hns_mac_cb *mac_cb, enum mac_commom_mode mode)
+{
+        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
+
+        mac_ctrl_drv->mac_enable(mac_cb->priv.mac, mode);
+}
+
+void hns_mac_disable(struct hns_mac_cb *mac_cb, enum mac_commom_mode mode)
+{
+        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
+
+        mac_ctrl_drv->mac_disable(mac_cb->priv.mac, mode);
+}
+
 /**
  * hns_mac_init - init mac
  * @dsaf_dev: dsa fabric device struct pointer
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h
index bbc0a98e7ca3..fbc75341bef7 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h
@@ -356,6 +356,9 @@ struct mac_driver {
         /*adjust mac mode of port,include speed and duplex*/
         int (*adjust_link)(void *mac_drv, enum mac_speed speed,
                            u32 full_duplex);
+        /* need adjust link */
+        bool (*need_adjust_link)(void *mac_drv, enum mac_speed speed,
+                                 int duplex);
         /* config autoegotaite mode of port*/
         void (*set_an_mode)(void *mac_drv, u8 enable);
         /* config loopbank mode */
@@ -394,6 +397,7 @@ struct mac_driver {
         void (*get_info)(void *mac_drv, struct mac_info *mac_info);
 
         void (*update_stats)(void *mac_drv);
+        int (*wait_fifo_clean)(void *mac_drv);
 
         enum mac_mode mac_mode;
         u8 mac_id;
@@ -427,6 +431,7 @@ void *hns_xgmac_config(struct hns_mac_cb *mac_cb,
 
 int hns_mac_init(struct dsaf_device *dsaf_dev);
 void mac_adjust_link(struct net_device *net_dev);
+bool hns_mac_need_adjust_link(struct hns_mac_cb *mac_cb, int speed, int duplex);
 void hns_mac_get_link_status(struct hns_mac_cb *mac_cb, u32 *link_status);
 int hns_mac_change_vf_addr(struct hns_mac_cb *mac_cb, u32 vmid, char *addr);
 int hns_mac_set_multi(struct hns_mac_cb *mac_cb,
@@ -463,5 +468,8 @@ int hns_mac_add_uc_addr(struct hns_mac_cb *mac_cb, u8 vf_id,
 int hns_mac_rm_uc_addr(struct hns_mac_cb *mac_cb, u8 vf_id,
                        const unsigned char *addr);
 int hns_mac_clr_multicast(struct hns_mac_cb *mac_cb, int vfn);
+void hns_mac_enable(struct hns_mac_cb *mac_cb, enum mac_commom_mode mode);
+void hns_mac_disable(struct hns_mac_cb *mac_cb, enum mac_commom_mode mode);
+int hns_mac_wait_fifo_clean(struct hns_mac_cb *mac_cb);
 
 #endif /* _HNS_DSAF_MAC_H */
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
index ca50c2553a9c..e557a4ef5996 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
@@ -2727,6 +2727,35 @@ void hns_dsaf_set_promisc_tcam(struct dsaf_device *dsaf_dev,
         soft_mac_entry->index = enable ? entry_index : DSAF_INVALID_ENTRY_IDX;
 }
 
+int hns_dsaf_wait_pkt_clean(struct dsaf_device *dsaf_dev, int port)
+{
+        u32 val, val_tmp;
+        int wait_cnt;
+
+        if (port >= DSAF_SERVICE_NW_NUM)
+                return 0;
+
+        wait_cnt = 0;
+        while (wait_cnt++ < HNS_MAX_WAIT_CNT) {
+                val = dsaf_read_dev(dsaf_dev, DSAF_VOQ_IN_PKT_NUM_0_REG +
+                        (port + DSAF_XGE_NUM) * 0x40);
+                val_tmp = dsaf_read_dev(dsaf_dev, DSAF_VOQ_OUT_PKT_NUM_0_REG +
+                        (port + DSAF_XGE_NUM) * 0x40);
+                if (val == val_tmp)
+                        break;
+
+                usleep_range(100, 200);
+        }
+
+        if (wait_cnt >= HNS_MAX_WAIT_CNT) {
+                dev_err(dsaf_dev->dev, "hns dsaf clean wait timeout(%u - %u).\n",
+                        val, val_tmp);
+                return -EBUSY;
+        }
+
+        return 0;
+}
+
 /**
  * dsaf_probe - probo dsaf dev
  * @pdev: dasf platform device
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
index 4507e8222683..0e1cd99831a6 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h
@@ -44,6 +44,8 @@ struct hns_mac_cb;
 #define DSAF_ROCE_CREDIT_CHN    8
 #define DSAF_ROCE_CHAN_MODE     3
 
+#define HNS_MAX_WAIT_CNT 10000
+
 enum dsaf_roce_port_mode {
         DSAF_ROCE_6PORT_MODE,
         DSAF_ROCE_4PORT_MODE,
@@ -463,5 +465,6 @@ int hns_dsaf_rm_mac_addr(
 
 int hns_dsaf_clr_mac_mc_port(struct dsaf_device *dsaf_dev,
                              u8 mac_id, u8 port_num);
+int hns_dsaf_wait_pkt_clean(struct dsaf_device *dsaf_dev, int port);
 
 #endif /* __HNS_DSAF_MAIN_H__ */
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
index d160d8c9e45b..0942e4916d9d 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
@@ -275,6 +275,29 @@ static void hns_ppe_exc_irq_en(struct hns_ppe_cb *ppe_cb, int en)
         dsaf_write_dev(ppe_cb, PPE_INTEN_REG, msk_vlue & vld_msk);
 }
 
+int hns_ppe_wait_tx_fifo_clean(struct hns_ppe_cb *ppe_cb)
+{
+        int wait_cnt;
+        u32 val;
+
+        wait_cnt = 0;
+        while (wait_cnt++ < HNS_MAX_WAIT_CNT) {
+                val = dsaf_read_dev(ppe_cb, PPE_CURR_TX_FIFO0_REG) & 0x3ffU;
+                if (!val)
+                        break;
+
+                usleep_range(100, 200);
+        }
+
+        if (wait_cnt >= HNS_MAX_WAIT_CNT) {
+                dev_err(ppe_cb->dev, "hns ppe tx fifo clean wait timeout, still has %u pkt.\n",
+                        val);
+                return -EBUSY;
+        }
+
+        return 0;
+}
+
 /**
  * ppe_init_hw - init ppe
  * @ppe_cb: ppe device
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h
index 9d8e643e8aa6..f670e63a5a01 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h
@@ -100,6 +100,7 @@ struct ppe_common_cb {
 
 };
 
+int hns_ppe_wait_tx_fifo_clean(struct hns_ppe_cb *ppe_cb);
 int hns_ppe_init(struct dsaf_device *dsaf_dev);
 
 void hns_ppe_uninit(struct dsaf_device *dsaf_dev);
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
index 9d76e2e54f9d..5d64519b9b1d 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
@@ -66,6 +66,29 @@ void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag)
                         "queue(%d) wait fbd(%d) clean fail!!\n", i, fbd_num);
 }
 
+int hns_rcb_wait_tx_ring_clean(struct hnae_queue *qs)
+{
+        u32 head, tail;
+        int wait_cnt;
+
+        tail = dsaf_read_dev(&qs->tx_ring, RCB_REG_TAIL);
+        wait_cnt = 0;
+        while (wait_cnt++ < HNS_MAX_WAIT_CNT) {
+                head = dsaf_read_dev(&qs->tx_ring, RCB_REG_HEAD);
+                if (tail == head)
+                        break;
+
+                usleep_range(100, 200);
+        }
+
+        if (wait_cnt >= HNS_MAX_WAIT_CNT) {
+                dev_err(qs->dev->dev, "rcb wait timeout, head not equal to tail.\n");
+                return -EBUSY;
+        }
+
+        return 0;
+}
+
 /**
  *hns_rcb_reset_ring_hw - ring reset
  *@q: ring struct pointer
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
index 602816498c8d..2319b772a271 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
@@ -136,6 +136,7 @@ void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag);
 void hns_rcb_init_hw(struct ring_pair_cb *ring);
 void hns_rcb_reset_ring_hw(struct hnae_queue *q);
 void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag);
+int hns_rcb_wait_tx_ring_clean(struct hnae_queue *qs);
 u32 hns_rcb_get_rx_coalesced_frames(
         struct rcb_common_cb *rcb_common, u32 port_idx);
 u32 hns_rcb_get_tx_coalesced_frames(
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
index 886cbbf25761..74d935d82cbc 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
@@ -464,6 +464,7 @@
 #define RCB_RING_INTMSK_TX_OVERTIME_REG         0x000C4
 #define RCB_RING_INTSTS_TX_OVERTIME_REG         0x000C8
 
+#define GMAC_FIFO_STATE_REG                     0x0000UL
 #define GMAC_DUPLEX_TYPE_REG                    0x0008UL
 #define GMAC_FD_FC_TYPE_REG                     0x000CUL
 #define GMAC_TX_WATER_LINE_REG                  0x0010UL
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 9f2b552aee33..f56855e63c96 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -406,113 +406,13 @@ out_net_tx_busy:
         return NETDEV_TX_BUSY;
 }
 
-/**
- * hns_nic_get_headlen - determine size of header for RSC/LRO/GRO/FCOE
- * @data: pointer to the start of the headers
- * @max: total length of section to find headers in
- *
- * This function is meant to determine the length of headers that will
- * be recognized by hardware for LRO, GRO, and RSC offloads.  The main
- * motivation of doing this is to only perform one pull for IPv4 TCP
- * packets so that we can do basic things like calculating the gso_size
- * based on the average data per packet.
- **/
-static unsigned int hns_nic_get_headlen(unsigned char *data, u32 flag,
-                                        unsigned int max_size)
-{
-        unsigned char *network;
-        u8 hlen;
-
-        /* this should never happen, but better safe than sorry */
-        if (max_size < ETH_HLEN)
-                return max_size;
-
-        /* initialize network frame pointer */
-        network = data;
-
-        /* set first protocol and move network header forward */
-        network += ETH_HLEN;
-
-        /* handle any vlan tag if present */
-        if (hnae_get_field(flag, HNS_RXD_VLAN_M, HNS_RXD_VLAN_S)
-                == HNS_RX_FLAG_VLAN_PRESENT) {
-                if ((typeof(max_size))(network - data) > (max_size - VLAN_HLEN))
-                        return max_size;
-
-                network += VLAN_HLEN;
-        }
-
-        /* handle L3 protocols */
-        if (hnae_get_field(flag, HNS_RXD_L3ID_M, HNS_RXD_L3ID_S)
-                == HNS_RX_FLAG_L3ID_IPV4) {
-                if ((typeof(max_size))(network - data) >
-                    (max_size - sizeof(struct iphdr)))
-                        return max_size;
-
-                /* access ihl as a u8 to avoid unaligned access on ia64 */
-                hlen = (network[0] & 0x0F) << 2;
-
-                /* verify hlen meets minimum size requirements */
-                if (hlen < sizeof(struct iphdr))
-                        return network - data;
-
-                /* record next protocol if header is present */
-        } else if (hnae_get_field(flag, HNS_RXD_L3ID_M, HNS_RXD_L3ID_S)
-                == HNS_RX_FLAG_L3ID_IPV6) {
-                if ((typeof(max_size))(network - data) >
-                    (max_size - sizeof(struct ipv6hdr)))
-                        return max_size;
-
-                /* record next protocol */
-                hlen = sizeof(struct ipv6hdr);
-        } else {
-                return network - data;
-        }
-
-        /* relocate pointer to start of L4 header */
-        network += hlen;
-
-        /* finally sort out TCP/UDP */
-        if (hnae_get_field(flag, HNS_RXD_L4ID_M, HNS_RXD_L4ID_S)
-                == HNS_RX_FLAG_L4ID_TCP) {
-                if ((typeof(max_size))(network - data) >
-                    (max_size - sizeof(struct tcphdr)))
-                        return max_size;
-
-                /* access doff as a u8 to avoid unaligned access on ia64 */
-                hlen = (network[12] & 0xF0) >> 2;
-
-                /* verify hlen meets minimum size requirements */
-                if (hlen < sizeof(struct tcphdr))
-                        return network - data;
-
-                network += hlen;
-        } else if (hnae_get_field(flag, HNS_RXD_L4ID_M, HNS_RXD_L4ID_S)
-                == HNS_RX_FLAG_L4ID_UDP) {
-                if ((typeof(max_size))(network - data) >
-                    (max_size - sizeof(struct udphdr)))
-                        return max_size;
-
-                network += sizeof(struct udphdr);
-        }
-
-        /* If everything has gone correctly network should be the
-         * data section of the packet and will be the end of the header.
-         * If not then it probably represents the end of the last recognized
-         * header.
-         */
-        if ((typeof(max_size))(network - data) < max_size)
-                return network - data;
-        else
-                return max_size;
-}
-
 static void hns_nic_reuse_page(struct sk_buff *skb, int i,
                                struct hnae_ring *ring, int pull_len,
                                struct hnae_desc_cb *desc_cb)
 {
         struct hnae_desc *desc;
-        int truesize, size;
+        u32 truesize;
+        int size;
         int last_offset;
         bool twobufs;
 
@@ -530,7 +430,7 @@ static void hns_nic_reuse_page(struct sk_buff *skb, int i,
         }
 
         skb_add_rx_frag(skb, i, desc_cb->priv, desc_cb->page_offset + pull_len,
-                        size - pull_len, truesize - pull_len);
+                        size - pull_len, truesize);
 
          /* avoid re-using remote pages,flag default unreuse */
         if (unlikely(page_to_nid(desc_cb->priv) != numa_node_id()))
@@ -695,7 +595,7 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data,
         } else {
                 ring->stats.seg_pkt_cnt++;
 
-                pull_len = hns_nic_get_headlen(va, bnum_flag, HNS_RX_HEAD_SIZE);
+                pull_len = eth_get_headlen(va, HNS_RX_HEAD_SIZE);
                 memcpy(__skb_put(skb, pull_len), va,
                        ALIGN(pull_len, sizeof(long)));
 
@@ -1212,11 +1112,26 @@ static void hns_nic_adjust_link(struct net_device *ndev)
         struct hnae_handle *h = priv->ae_handle;
         int state = 1;
 
+        /* If there is no phy, do not need adjust link */
         if (ndev->phydev) {
-                h->dev->ops->adjust_link(h, ndev->phydev->speed,
-                                         ndev->phydev->duplex);
-                state = ndev->phydev->link;
+                /* When phy link down, do nothing */
+                if (ndev->phydev->link == 0)
+                        return;
+
+                if (h->dev->ops->need_adjust_link(h, ndev->phydev->speed,
+                                                  ndev->phydev->duplex)) {
+                        /* because Hi161X chip don't support to change gmac
+                         * speed and duplex with traffic. Delay 200ms to
+                         * make sure there is no more data in chip FIFO.
+                         */
+                        netif_carrier_off(ndev);
+                        msleep(200);
+                        h->dev->ops->adjust_link(h, ndev->phydev->speed,
+                                                 ndev->phydev->duplex);
+                        netif_carrier_on(ndev);
+                }
         }
+
         state = state && h->dev->ops->get_status(h);
 
         if (state != priv->link) {
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index 08f3c4743f74..774beda040a1 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -243,7 +243,9 @@ static int hns_nic_set_link_ksettings(struct net_device *net_dev,
         }
 
         if (h->dev->ops->adjust_link) {
+                netif_carrier_off(net_dev);
                 h->dev->ops->adjust_link(h, (int)speed, cmd->base.duplex);
+                netif_carrier_on(net_dev);
                 return 0;
         }
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 3554dca7a680..955c4ab18b03 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -2019,7 +2019,8 @@ static void hns3_nic_reuse_page(struct sk_buff *skb, int i,
                                 struct hns3_desc_cb *desc_cb)
 {
         struct hns3_desc *desc;
-        int truesize, size;
+        u32 truesize;
+        int size;
         int last_offset;
         bool twobufs;
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index a02a96aee2a2..cb450d7ec8c1 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -284,11 +284,11 @@ struct hns3_desc_cb {
 
         /* priv data for the desc, e.g. skb when use with ip stack*/
         void *priv;
-        u16 page_offset;
-        u16 reuse_flag;
-
+        u32 page_offset;
         u32 length;     /* length of the buffer */
 
+        u16 reuse_flag;
+
        /* desc type, used by the ring user to mark the type of the priv data */
         u16 type;
 };
diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 354c0982847b..372664686309 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -494,9 +494,6 @@ static u32 __emac_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_s
         case 16384:
                 ret |= EMAC_MR1_RFS_16K;
                 break;
-        case 8192:
-                ret |= EMAC4_MR1_RFS_8K;
-                break;
         case 4096:
                 ret |= EMAC_MR1_RFS_4K;
                 break;
@@ -537,6 +534,9 @@ static u32 __emac4_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_
         case 16384:
                 ret |= EMAC4_MR1_RFS_16K;
                 break;
+        case 8192:
+                ret |= EMAC4_MR1_RFS_8K;
+                break;
         case 4096:
                 ret |= EMAC4_MR1_RFS_4K;
                 break;
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index dafdd4ade705..4f0daf67b18d 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1823,11 +1823,17 @@ static int do_reset(struct ibmvnic_adapter *adapter,
                         adapter->map_id = 1;
                         release_rx_pools(adapter);
                         release_tx_pools(adapter);
-                        init_rx_pools(netdev);
-                        init_tx_pools(netdev);
+                        rc = init_rx_pools(netdev);
+                        if (rc)
+                                return rc;
+                        rc = init_tx_pools(netdev);
+                        if (rc)
+                                return rc;
 
                         release_napi(adapter);
-                        init_napi(adapter);
+                        rc = init_napi(adapter);
+                        if (rc)
+                                return rc;
                 } else {
                         rc = reset_tx_pools(adapter);
                         if (rc)
diff --git a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
index bdb3f8e65ed4..2569a168334c 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
@@ -624,14 +624,14 @@ static int e1000_set_ringparam(struct net_device *netdev,
                 adapter->tx_ring = tx_old;
                 e1000_free_all_rx_resources(adapter);
                 e1000_free_all_tx_resources(adapter);
-                kfree(tx_old);
-                kfree(rx_old);
                 adapter->rx_ring = rxdr;
                 adapter->tx_ring = txdr;
                 err = e1000_up(adapter);
                 if (err)
                         goto err_setup;
         }
+        kfree(tx_old);
+        kfree(rx_old);
 
         clear_bit(__E1000_RESETTING, &adapter->flags);
         return 0;
@@ -644,7 +644,8 @@ err_setup_rx:
 err_alloc_rx:
         kfree(txdr);
 err_alloc_tx:
-        e1000_up(adapter);
+        if (netif_running(adapter->netdev))
+                e1000_up(adapter);
 err_setup:
         clear_bit(__E1000_RESETTING, &adapter->flags);
         return err;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index abcd096ede14..5ff6caa83948 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -2013,7 +2013,7 @@ static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
                 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
 
-        WARN_ONCE(p - data != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
+        WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
                   "stat strings count mismatch!");
 }
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index f2c622e78802..ac685ad4d877 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5122,15 +5122,17 @@ static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi, u8 enabled_tc,
                                        u8 *bw_share)
 {
         struct i40e_aqc_configure_vsi_tc_bw_data bw_data;
+        struct i40e_pf *pf = vsi->back;
         i40e_status ret;
         int i;
 
-        if (vsi->back->flags & I40E_FLAG_TC_MQPRIO)
+        /* There is no need to reset BW when mqprio mode is on.  */
+        if (pf->flags & I40E_FLAG_TC_MQPRIO)
                 return 0;
-        if (!vsi->mqprio_qopt.qopt.hw) {
+        if (!vsi->mqprio_qopt.qopt.hw && !(pf->flags & I40E_FLAG_DCB_ENABLED)) {
                 ret = i40e_set_bw_limit(vsi, vsi->seid, 0);
                 if (ret)
-                        dev_info(&vsi->back->pdev->dev,
+                        dev_info(&pf->pdev->dev,
                                  "Failed to reset tx rate for vsi->seid %u\n",
                                  vsi->seid);
                 return ret;
@@ -5139,12 +5141,11 @@ static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi, u8 enabled_tc,
         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
                 bw_data.tc_bw_credits[i] = bw_share[i];
 
-        ret = i40e_aq_config_vsi_tc_bw(&vsi->back->hw, vsi->seid, &bw_data,
-                                       NULL);
+        ret = i40e_aq_config_vsi_tc_bw(&pf->hw, vsi->seid, &bw_data, NULL);
         if (ret) {
-                dev_info(&vsi->back->pdev->dev,
+                dev_info(&pf->pdev->dev,
                          "AQ command Config VSI BW allocation per TC failed = %d\n",
-                         vsi->back->hw.aq.asq_last_status);
+                         pf->hw.aq.asq_last_status);
                 return -EINVAL;
         }
 
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index d8b5fff581e7..868f4a1d0f72 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -89,6 +89,13 @@ extern const char ice_drv_ver[];
 #define ice_for_each_rxq(vsi, i) \
         for ((i) = 0; (i) < (vsi)->num_rxq; (i)++)
 
+/* Macros for each allocated tx/rx ring whether used or not in a VSI */
+#define ice_for_each_alloc_txq(vsi, i) \
+        for ((i) = 0; (i) < (vsi)->alloc_txq; (i)++)
+
+#define ice_for_each_alloc_rxq(vsi, i) \
+        for ((i) = 0; (i) < (vsi)->alloc_rxq; (i)++)
+
 struct ice_tc_info {
         u16 qoffset;
         u16 qcount;
@@ -189,9 +196,9 @@ struct ice_vsi {
         struct list_head tmp_sync_list;         /* MAC filters to be synced */
         struct list_head tmp_unsync_list;       /* MAC filters to be unsynced */
 
-        bool irqs_ready;
-        bool current_isup;               /* Sync 'link up' logging */
-        bool stat_offsets_loaded;
+        u8 irqs_ready;
+        u8 current_isup;                 /* Sync 'link up' logging */
+        u8 stat_offsets_loaded;
 
         /* queue information */
         u8 tx_mapping_mode;              /* ICE_MAP_MODE_[CONTIG|SCATTER] */
@@ -262,7 +269,7 @@ struct ice_pf {
         struct ice_hw_port_stats stats;
         struct ice_hw_port_stats stats_prev;
         struct ice_hw hw;
-        bool stat_prev_loaded;  /* has previous stats been loaded */
+        u8 stat_prev_loaded;    /* has previous stats been loaded */
         char int_name[ICE_INT_NAME_STR_LEN];
 };
 
diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
index 7541ec2270b3..a0614f472658 100644
--- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
@@ -329,19 +329,19 @@ struct ice_aqc_vsi_props {
         /* VLAN section */
         __le16 pvid; /* VLANS include priority bits */
         u8 pvlan_reserved[2];
-        u8 port_vlan_flags;
-#define ICE_AQ_VSI_PVLAN_MODE_S 0
-#define ICE_AQ_VSI_PVLAN_MODE_M (0x3 << ICE_AQ_VSI_PVLAN_MODE_S)
-#define ICE_AQ_VSI_PVLAN_MODE_UNTAGGED  0x1
-#define ICE_AQ_VSI_PVLAN_MODE_TAGGED    0x2
-#define ICE_AQ_VSI_PVLAN_MODE_ALL       0x3
+        u8 vlan_flags;
+#define ICE_AQ_VSI_VLAN_MODE_S  0
+#define ICE_AQ_VSI_VLAN_MODE_M  (0x3 << ICE_AQ_VSI_VLAN_MODE_S)
+#define ICE_AQ_VSI_VLAN_MODE_UNTAGGED   0x1
+#define ICE_AQ_VSI_VLAN_MODE_TAGGED     0x2
+#define ICE_AQ_VSI_VLAN_MODE_ALL        0x3
 #define ICE_AQ_VSI_PVLAN_INSERT_PVID    BIT(2)
-#define ICE_AQ_VSI_PVLAN_EMOD_S 3
-#define ICE_AQ_VSI_PVLAN_EMOD_M (0x3 << ICE_AQ_VSI_PVLAN_EMOD_S)
-#define ICE_AQ_VSI_PVLAN_EMOD_STR_BOTH  (0x0 << ICE_AQ_VSI_PVLAN_EMOD_S)
-#define ICE_AQ_VSI_PVLAN_EMOD_STR_UP    (0x1 << ICE_AQ_VSI_PVLAN_EMOD_S)
-#define ICE_AQ_VSI_PVLAN_EMOD_STR       (0x2 << ICE_AQ_VSI_PVLAN_EMOD_S)
-#define ICE_AQ_VSI_PVLAN_EMOD_NOTHING   (0x3 << ICE_AQ_VSI_PVLAN_EMOD_S)
+#define ICE_AQ_VSI_VLAN_EMOD_S          3
+#define ICE_AQ_VSI_VLAN_EMOD_M          (0x3 << ICE_AQ_VSI_VLAN_EMOD_S)
+#define ICE_AQ_VSI_VLAN_EMOD_STR_BOTH   (0x0 << ICE_AQ_VSI_VLAN_EMOD_S)
+#define ICE_AQ_VSI_VLAN_EMOD_STR_UP     (0x1 << ICE_AQ_VSI_VLAN_EMOD_S)
+#define ICE_AQ_VSI_VLAN_EMOD_STR        (0x2 << ICE_AQ_VSI_VLAN_EMOD_S)
+#define ICE_AQ_VSI_VLAN_EMOD_NOTHING    (0x3 << ICE_AQ_VSI_VLAN_EMOD_S)
         u8 pvlan_reserved2[3];
         /* ingress egress up sections */
         __le32 ingress_table; /* bitmap, 3 bits per up */
@@ -594,6 +594,7 @@ struct ice_sw_rule_lg_act {
 #define ICE_LG_ACT_GENERIC_OFFSET_M     (0x7 << ICE_LG_ACT_GENERIC_OFFSET_S)
 #define ICE_LG_ACT_GENERIC_PRIORITY_S   22
 #define ICE_LG_ACT_GENERIC_PRIORITY_M   (0x7 << ICE_LG_ACT_GENERIC_PRIORITY_S)
+#define ICE_LG_ACT_GENERIC_OFF_RX_DESC_PROF_IDX 7
 
         /* Action = 7 - Set Stat count */
 #define ICE_LG_ACT_STAT_COUNT           0x7
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 71d032cc5fa7..661beea6af79 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -45,6 +45,9 @@ static enum ice_status ice_set_mac_type(struct ice_hw *hw)
 /**
  * ice_clear_pf_cfg - Clear PF configuration
  * @hw: pointer to the hardware structure
+ *
+ * Clears any existing PF configuration (VSIs, VSI lists, switch rules, port
+ * configuration, flow director filters, etc.).
  */
 enum ice_status ice_clear_pf_cfg(struct ice_hw *hw)
 {
@@ -1483,7 +1486,7 @@ enum ice_status ice_get_link_status(struct ice_port_info *pi, bool *link_up)
         struct ice_phy_info *phy_info;
         enum ice_status status = 0;
 
-        if (!pi)
+        if (!pi || !link_up)
                 return ICE_ERR_PARAM;
 
         phy_info = &pi->phy;
@@ -1619,20 +1622,23 @@ __ice_aq_get_set_rss_lut(struct ice_hw *hw, u16 vsi_id, u8 lut_type, u8 *lut,
         }
 
         /* LUT size is only valid for Global and PF table types */
-        if (lut_size == ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_128) {
-                flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_128_FLAG <<
-                          ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) &
-                         ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M;
-        } else if (lut_size == ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_512) {
+        switch (lut_size) {
+        case ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_128:
+                break;
+        case ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_512:
                 flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_512_FLAG <<
                           ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) &
                          ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M;
-        } else if ((lut_size == ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_2K) &&
-                   (lut_type == ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_PF)) {
-                flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_2K_FLAG <<
-                          ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) &
-                         ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M;
-        } else {
+                break;
+        case ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_2K:
+                if (lut_type == ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_PF) {
+                        flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_2K_FLAG <<
+                                  ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) &
+                                 ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M;
+                        break;
+                }
+                /* fall-through */
+        default:
                 status = ICE_ERR_PARAM;
                 goto ice_aq_get_set_rss_lut_exit;
         }
diff --git a/drivers/net/ethernet/intel/ice/ice_controlq.c b/drivers/net/ethernet/intel/ice/ice_controlq.c
index 7c511f144ed6..62be72fdc8f3 100644
--- a/drivers/net/ethernet/intel/ice/ice_controlq.c
+++ b/drivers/net/ethernet/intel/ice/ice_controlq.c
@@ -597,10 +597,14 @@ static enum ice_status ice_init_check_adminq(struct ice_hw *hw)
         return 0;
 
 init_ctrlq_free_rq:
-        ice_shutdown_rq(hw, cq);
-        ice_shutdown_sq(hw, cq);
-        mutex_destroy(&cq->sq_lock);
-        mutex_destroy(&cq->rq_lock);
+        if (cq->rq.head) {
+                ice_shutdown_rq(hw, cq);
+                mutex_destroy(&cq->rq_lock);
+        }
+        if (cq->sq.head) {
+                ice_shutdown_sq(hw, cq);
+                mutex_destroy(&cq->sq_lock);
+        }
         return status;
 }
 
@@ -706,10 +710,14 @@ static void ice_shutdown_ctrlq(struct ice_hw *hw, enum ice_ctl_q q_type)
                 return;
         }
 
-        ice_shutdown_sq(hw, cq);
-        ice_shutdown_rq(hw, cq);
-        mutex_destroy(&cq->sq_lock);
-        mutex_destroy(&cq->rq_lock);
+        if (cq->sq.head) {
+                ice_shutdown_sq(hw, cq);
+                mutex_destroy(&cq->sq_lock);
+        }
+        if (cq->rq.head) {
+                ice_shutdown_rq(hw, cq);
+                mutex_destroy(&cq->rq_lock);
+        }
 }
 
 /**
@@ -1057,8 +1065,11 @@ ice_clean_rq_elem(struct ice_hw *hw, struct ice_ctl_q_info *cq,
 
 clean_rq_elem_out:
         /* Set pending if needed, unlock and return */
-        if (pending)
+        if (pending) {
+                /* re-read HW head to calculate actual pending messages */
+                ntu = (u16)(rd32(hw, cq->rq.head) & cq->rq.head_mask);
                 *pending = (u16)((ntc > ntu ? cq->rq.count : 0) + (ntu - ntc));
+        }
 clean_rq_elem_err:
         mutex_unlock(&cq->rq_lock);
 
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 1db304c01d10..c71a9b528d6d 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -26,7 +26,7 @@ static int ice_q_stats_len(struct net_device *netdev)
 {
         struct ice_netdev_priv *np = netdev_priv(netdev);
 
-        return ((np->vsi->num_txq + np->vsi->num_rxq) *
+        return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) *
                 (sizeof(struct ice_q_stats) / sizeof(u64)));
 }
 
@@ -218,7 +218,7 @@ static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
                         p += ETH_GSTRING_LEN;
                 }
 
-                ice_for_each_txq(vsi, i) {
+                ice_for_each_alloc_txq(vsi, i) {
                         snprintf(p, ETH_GSTRING_LEN,
                                  "tx-queue-%u.tx_packets", i);
                         p += ETH_GSTRING_LEN;
@@ -226,7 +226,7 @@ static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
                         p += ETH_GSTRING_LEN;
                 }
 
-                ice_for_each_rxq(vsi, i) {
+                ice_for_each_alloc_rxq(vsi, i) {
                         snprintf(p, ETH_GSTRING_LEN,
                                  "rx-queue-%u.rx_packets", i);
                         p += ETH_GSTRING_LEN;
@@ -253,6 +253,24 @@ static int ice_get_sset_count(struct net_device *netdev, int sset)
 {
         switch (sset) {
         case ETH_SS_STATS:
+                /* The number (and order) of strings reported *must* remain
+                 * constant for a given netdevice. This function must not
+                 * report a different number based on run time parameters
+                 * (such as the number of queues in use, or the setting of
+                 * a private ethtool flag). This is due to the nature of the
+                 * ethtool stats API.
+                 *
+                 * User space programs such as ethtool must make 3 separate
+                 * ioctl requests, one for size, one for the strings, and
+                 * finally one for the stats. Since these cross into
+                 * user space, changes to the number or size could result in
+                 * undefined memory access or incorrect string<->value
+                 * correlations for statistics.
+                 *
+                 * Even if it appears to be safe, changes to the size or
+                 * order of strings will suffer from race conditions and are
+                 * not safe.
+                 */
                 return ICE_ALL_STATS_LEN(netdev);
         default:
                 return -EOPNOTSUPP;
@@ -280,18 +298,26 @@ ice_get_ethtool_stats(struct net_device *netdev,
         /* populate per queue stats */
         rcu_read_lock();
 
-        ice_for_each_txq(vsi, j) {
+        ice_for_each_alloc_txq(vsi, j) {
                 ring = READ_ONCE(vsi->tx_rings[j]);
-                if (!ring)
-                        continue;
-                data[i++] = ring->stats.pkts;
-                data[i++] = ring->stats.bytes;
+                if (ring) {
+                        data[i++] = ring->stats.pkts;
+                        data[i++] = ring->stats.bytes;
+                } else {
+                        data[i++] = 0;
+                        data[i++] = 0;
+                }
         }
 
-        ice_for_each_rxq(vsi, j) {
+        ice_for_each_alloc_rxq(vsi, j) {
                 ring = READ_ONCE(vsi->rx_rings[j]);
-                data[i++] = ring->stats.pkts;
-                data[i++] = ring->stats.bytes;
+                if (ring) {
+                        data[i++] = ring->stats.pkts;
+                        data[i++] = ring->stats.bytes;
+                } else {
+                        data[i++] = 0;
+                        data[i++] = 0;
+                }
         }
 
         rcu_read_unlock();
@@ -519,7 +545,7 @@ ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
                 goto done;
         }
 
-        for (i = 0; i < vsi->num_txq; i++) {
+        for (i = 0; i < vsi->alloc_txq; i++) {
                 /* clone ring and setup updated count */
                 tx_rings[i] = *vsi->tx_rings[i];
                 tx_rings[i].count = new_tx_cnt;
@@ -551,7 +577,7 @@ process_rx:
                 goto done;
         }
 
-        for (i = 0; i < vsi->num_rxq; i++) {
+        for (i = 0; i < vsi->alloc_rxq; i++) {
                 /* clone ring and setup updated count */
                 rx_rings[i] = *vsi->rx_rings[i];
                 rx_rings[i].count = new_rx_cnt;
diff --git a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h
index 499904874b3f..6076fc87df9d 100644
--- a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h
+++ b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h
@@ -121,10 +121,6 @@
 #define PFINT_FW_CTL_CAUSE_ENA_S        30
 #define PFINT_FW_CTL_CAUSE_ENA_M        BIT(PFINT_FW_CTL_CAUSE_ENA_S)
 #define PFINT_OICR                      0x0016CA00
-#define PFINT_OICR_HLP_RDY_S            14
-#define PFINT_OICR_HLP_RDY_M            BIT(PFINT_OICR_HLP_RDY_S)
-#define PFINT_OICR_CPM_RDY_S            15
-#define PFINT_OICR_CPM_RDY_M            BIT(PFINT_OICR_CPM_RDY_S)
 #define PFINT_OICR_ECC_ERR_S            16
 #define PFINT_OICR_ECC_ERR_M            BIT(PFINT_OICR_ECC_ERR_S)
 #define PFINT_OICR_MAL_DETECT_S         19
@@ -133,10 +129,6 @@
 #define PFINT_OICR_GRST_M               BIT(PFINT_OICR_GRST_S)
 #define PFINT_OICR_PCI_EXCEPTION_S      21
 #define PFINT_OICR_PCI_EXCEPTION_M      BIT(PFINT_OICR_PCI_EXCEPTION_S)
-#define PFINT_OICR_GPIO_S               22
-#define PFINT_OICR_GPIO_M               BIT(PFINT_OICR_GPIO_S)
-#define PFINT_OICR_STORM_DETECT_S       24
-#define PFINT_OICR_STORM_DETECT_M       BIT(PFINT_OICR_STORM_DETECT_S)
 #define PFINT_OICR_HMC_ERR_S            26
 #define PFINT_OICR_HMC_ERR_M            BIT(PFINT_OICR_HMC_ERR_S)
 #define PFINT_OICR_PE_CRITERR_S         28
diff --git a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
index d23a91665b46..068dbc740b76 100644
--- a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
+++ b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
@@ -265,6 +265,7 @@ enum ice_rx_flex_desc_status_error_0_bits {
 struct ice_rlan_ctx {
         u16 head;
         u16 cpuid; /* bigger than needed, see above for reason */
+#define ICE_RLAN_BASE_S 7
         u64 base;
         u16 qlen;
 #define ICE_RLAN_CTX_DBUF_S 7
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 5299caf55a7f..f1e80eed2fd6 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -901,7 +901,7 @@ static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type)
                 case ice_aqc_opc_get_link_status:
                         if (ice_handle_link_event(pf))
                                 dev_err(&pf->pdev->dev,
-                                        "Could not handle link event");
+                                        "Could not handle link event\n");
                         break;
                 default:
                         dev_dbg(&pf->pdev->dev,
@@ -917,13 +917,27 @@ static int __ice_clean_ctrlq(struct ice_pf *pf, enum ice_ctl_q q_type)
 }
 
 /**
+ * ice_ctrlq_pending - check if there is a difference between ntc and ntu
+ * @hw: pointer to hardware info
+ * @cq: control queue information
+ *
+ * returns true if there are pending messages in a queue, false if there aren't
+ */
+static bool ice_ctrlq_pending(struct ice_hw *hw, struct ice_ctl_q_info *cq)
+{
+        u16 ntu;
+
+        ntu = (u16)(rd32(hw, cq->rq.head) & cq->rq.head_mask);
+        return cq->rq.next_to_clean != ntu;
+}
+
+/**
  * ice_clean_adminq_subtask - clean the AdminQ rings
  * @pf: board private structure
  */
 static void ice_clean_adminq_subtask(struct ice_pf *pf)
 {
         struct ice_hw *hw = &pf->hw;
-        u32 val;
 
         if (!test_bit(__ICE_ADMINQ_EVENT_PENDING, pf->state))
                 return;
@@ -933,9 +947,13 @@ static void ice_clean_adminq_subtask(struct ice_pf *pf)
 
         clear_bit(__ICE_ADMINQ_EVENT_PENDING, pf->state);
 
-        /* re-enable Admin queue interrupt causes */
-        val = rd32(hw, PFINT_FW_CTL);
-        wr32(hw, PFINT_FW_CTL, (val | PFINT_FW_CTL_CAUSE_ENA_M));
+        /* There might be a situation where new messages arrive to a control
+         * queue between processing the last message and clearing the
+         * EVENT_PENDING bit. So before exiting, check queue head again (using
+         * ice_ctrlq_pending) and process new messages if any.
+         */
+        if (ice_ctrlq_pending(hw, &hw->adminq))
+                __ice_clean_ctrlq(pf, ICE_CTL_Q_ADMIN);
 
         ice_flush(hw);
 }
@@ -1295,11 +1313,8 @@ static void ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt)
                 qcount = numq_tc;
         }
 
-        /* find higher power-of-2 of qcount */
-        pow = ilog2(qcount);
-
-        if (!is_power_of_2(qcount))
-                pow++;
+        /* find the (rounded up) power-of-2 of qcount */
+        pow = order_base_2(qcount);
 
         for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) {
                 if (!(vsi->tc_cfg.ena_tc & BIT(i))) {
@@ -1352,14 +1367,15 @@ static void ice_set_dflt_vsi_ctx(struct ice_vsi_ctx *ctxt)
         ctxt->info.sw_flags = ICE_AQ_VSI_SW_FLAG_SRC_PRUNE;
         /* Traffic from VSI can be sent to LAN */
         ctxt->info.sw_flags2 = ICE_AQ_VSI_SW_FLAG_LAN_ENA;
-        /* Allow all packets untagged/tagged */
-        ctxt->info.port_vlan_flags = ((ICE_AQ_VSI_PVLAN_MODE_ALL &
-                                       ICE_AQ_VSI_PVLAN_MODE_M) >>
-                                      ICE_AQ_VSI_PVLAN_MODE_S);
-        /* Show VLAN/UP from packets in Rx descriptors */
-        ctxt->info.port_vlan_flags |= ((ICE_AQ_VSI_PVLAN_EMOD_STR_BOTH &
-                                        ICE_AQ_VSI_PVLAN_EMOD_M) >>
-                                       ICE_AQ_VSI_PVLAN_EMOD_S);
+
+        /* By default bits 3 and 4 in vlan_flags are 0's which results in legacy
+         * behavior (show VLAN, DEI, and UP) in descriptor. Also, allow all
+         * packets untagged/tagged.
+         */
+        ctxt->info.vlan_flags = ((ICE_AQ_VSI_VLAN_MODE_ALL &
+                                  ICE_AQ_VSI_VLAN_MODE_M) >>
+                                 ICE_AQ_VSI_VLAN_MODE_S);
+
         /* Have 1:1 UP mapping for both ingress/egress tables */
         table |= ICE_UP_TABLE_TRANSLATE(0, 0);
         table |= ICE_UP_TABLE_TRANSLATE(1, 1);
@@ -1688,15 +1704,12 @@ static void ice_ena_misc_vector(struct ice_pf *pf)
         wr32(hw, PFINT_OICR_ENA, 0);    /* disable all */
         rd32(hw, PFINT_OICR);           /* read to clear */
 
-        val = (PFINT_OICR_HLP_RDY_M |
-               PFINT_OICR_CPM_RDY_M |
-               PFINT_OICR_ECC_ERR_M |
+        val = (PFINT_OICR_ECC_ERR_M |
                PFINT_OICR_MAL_DETECT_M |
                PFINT_OICR_GRST_M |
                PFINT_OICR_PCI_EXCEPTION_M |
-               PFINT_OICR_GPIO_M |
-               PFINT_OICR_STORM_DETECT_M |
-               PFINT_OICR_HMC_ERR_M);
+               PFINT_OICR_HMC_ERR_M |
+               PFINT_OICR_PE_CRITERR_M);
 
         wr32(hw, PFINT_OICR_ENA, val);
 
@@ -2058,15 +2071,13 @@ static int ice_req_irq_msix_misc(struct ice_pf *pf)
 skip_req_irq:
         ice_ena_misc_vector(pf);
 
-        val = (pf->oicr_idx & PFINT_OICR_CTL_MSIX_INDX_M) |
-              (ICE_RX_ITR & PFINT_OICR_CTL_ITR_INDX_M) |
-              PFINT_OICR_CTL_CAUSE_ENA_M;
+        val = ((pf->oicr_idx & PFINT_OICR_CTL_MSIX_INDX_M) |
+               PFINT_OICR_CTL_CAUSE_ENA_M);
         wr32(hw, PFINT_OICR_CTL, val);
 
         /* This enables Admin queue Interrupt causes */
-        val = (pf->oicr_idx & PFINT_FW_CTL_MSIX_INDX_M) |
-              (ICE_RX_ITR & PFINT_FW_CTL_ITR_INDX_M) |
-              PFINT_FW_CTL_CAUSE_ENA_M;
+        val = ((pf->oicr_idx & PFINT_FW_CTL_MSIX_INDX_M) |
+               PFINT_FW_CTL_CAUSE_ENA_M);
         wr32(hw, PFINT_FW_CTL, val);
 
         itr_gran = hw->itr_gran_200;
@@ -3246,8 +3257,10 @@ static void ice_clear_interrupt_scheme(struct ice_pf *pf)
         if (test_bit(ICE_FLAG_MSIX_ENA, pf->flags))
                 ice_dis_msix(pf);
 
-        devm_kfree(&pf->pdev->dev, pf->irq_tracker);
-        pf->irq_tracker = NULL;
+        if (pf->irq_tracker) {
+                devm_kfree(&pf->pdev->dev, pf->irq_tracker);
+                pf->irq_tracker = NULL;
+        }
 }
 
 /**
@@ -3271,7 +3284,7 @@ static int ice_probe(struct pci_dev *pdev,
 
         err = pcim_iomap_regions(pdev, BIT(ICE_BAR0), pci_name(pdev));
         if (err) {
-                dev_err(&pdev->dev, "I/O map error %d\n", err);
+                dev_err(&pdev->dev, "BAR0 I/O map error %d\n", err);
                 return err;
         }
 
@@ -3720,10 +3733,10 @@ static int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi)
         enum ice_status status;
 
         /* Here we are configuring the VSI to let the driver add VLAN tags by
-         * setting port_vlan_flags to ICE_AQ_VSI_PVLAN_MODE_ALL. The actual VLAN
-         * tag insertion happens in the Tx hot path, in ice_tx_map.
+         * setting vlan_flags to ICE_AQ_VSI_VLAN_MODE_ALL. The actual VLAN tag
+         * insertion happens in the Tx hot path, in ice_tx_map.
          */
-        ctxt.info.port_vlan_flags = ICE_AQ_VSI_PVLAN_MODE_ALL;
+        ctxt.info.vlan_flags = ICE_AQ_VSI_VLAN_MODE_ALL;
 
         ctxt.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID);
         ctxt.vsi_num = vsi->vsi_num;
@@ -3735,7 +3748,7 @@ static int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi)
                 return -EIO;
         }
 
-        vsi->info.port_vlan_flags = ctxt.info.port_vlan_flags;
+        vsi->info.vlan_flags = ctxt.info.vlan_flags;
         return 0;
 }
 
@@ -3757,12 +3770,15 @@ static int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena)
          */
         if (ena) {
                 /* Strip VLAN tag from Rx packet and put it in the desc */
-                ctxt.info.port_vlan_flags = ICE_AQ_VSI_PVLAN_EMOD_STR_BOTH;
+                ctxt.info.vlan_flags = ICE_AQ_VSI_VLAN_EMOD_STR_BOTH;
         } else {
                 /* Disable stripping. Leave tag in packet */
-                ctxt.info.port_vlan_flags = ICE_AQ_VSI_PVLAN_EMOD_NOTHING;
+                ctxt.info.vlan_flags = ICE_AQ_VSI_VLAN_EMOD_NOTHING;
         }
 
+        /* Allow all packets untagged/tagged */
+        ctxt.info.vlan_flags |= ICE_AQ_VSI_VLAN_MODE_ALL;
+
         ctxt.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID);
         ctxt.vsi_num = vsi->vsi_num;
 
@@ -3773,7 +3789,7 @@ static int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena)
                 return -EIO;
         }
 
-        vsi->info.port_vlan_flags = ctxt.info.port_vlan_flags;
+        vsi->info.vlan_flags = ctxt.info.vlan_flags;
         return 0;
 }
 
@@ -3986,7 +4002,7 @@ static int ice_setup_rx_ctx(struct ice_ring *ring)
         /* clear the context structure first */
         memset(&rlan_ctx, 0, sizeof(rlan_ctx));
 
-        rlan_ctx.base = ring->dma >> 7;
+        rlan_ctx.base = ring->dma >> ICE_RLAN_BASE_S;
 
         rlan_ctx.qlen = ring->count;
 
@@ -4098,11 +4114,12 @@ static int ice_vsi_cfg(struct ice_vsi *vsi)
 {
         int err;
 
-        ice_set_rx_mode(vsi->netdev);
-
-        err = ice_restore_vlan(vsi);
-        if (err)
-                return err;
+        if (vsi->netdev) {
+                ice_set_rx_mode(vsi->netdev);
+                err = ice_restore_vlan(vsi);
+                if (err)
+                        return err;
+        }
 
         err = ice_vsi_cfg_txqs(vsi);
         if (!err)
@@ -4868,7 +4885,7 @@ int ice_down(struct ice_vsi *vsi)
  */
 static int ice_vsi_setup_tx_rings(struct ice_vsi *vsi)
 {
-        int i, err;
+        int i, err = 0;
 
         if (!vsi->num_txq) {
                 dev_err(&vsi->back->pdev->dev, "VSI %d has 0 Tx queues\n",
@@ -4893,7 +4910,7 @@ static int ice_vsi_setup_tx_rings(struct ice_vsi *vsi)
  */
 static int ice_vsi_setup_rx_rings(struct ice_vsi *vsi)
 {
-        int i, err;
+        int i, err = 0;
 
         if (!vsi->num_rxq) {
                 dev_err(&vsi->back->pdev->dev, "VSI %d has 0 Rx queues\n",
@@ -5235,7 +5252,7 @@ static int ice_change_mtu(struct net_device *netdev, int new_mtu)
         u8 count = 0;
 
         if (new_mtu == netdev->mtu) {
-                netdev_warn(netdev, "mtu is already %d\n", netdev->mtu);
+                netdev_warn(netdev, "mtu is already %u\n", netdev->mtu);
                 return 0;
         }
 
diff --git a/drivers/net/ethernet/intel/ice/ice_nvm.c b/drivers/net/ethernet/intel/ice/ice_nvm.c
index 92da0a626ce0..295a8cd87fc1 100644
--- a/drivers/net/ethernet/intel/ice/ice_nvm.c
+++ b/drivers/net/ethernet/intel/ice/ice_nvm.c
@@ -131,9 +131,8 @@ ice_read_sr_word_aq(struct ice_hw *hw, u16 offset, u16 *data)
  *
  * This function will request NVM ownership.
  */
-static enum
-ice_status ice_acquire_nvm(struct ice_hw *hw,
-                           enum ice_aq_res_access_type access)
+static enum ice_status
+ice_acquire_nvm(struct ice_hw *hw, enum ice_aq_res_access_type access)
 {
         if (hw->nvm.blank_nvm_mode)
                 return 0;
diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c
index 2e6c1d92cc88..eeae199469b6 100644
--- a/drivers/net/ethernet/intel/ice/ice_sched.c
+++ b/drivers/net/ethernet/intel/ice/ice_sched.c
@@ -1576,8 +1576,7 @@ ice_sched_update_vsi_child_nodes(struct ice_port_info *pi, u16 vsi_id, u8 tc,
                         return status;
         }
 
-        if (owner == ICE_SCHED_NODE_OWNER_LAN)
-                vsi->max_lanq[tc] = new_numqs;
+        vsi->max_lanq[tc] = new_numqs;
 
         return status;
 }
diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index 723d15f1e90b..6b7ec2ae5ad6 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -645,14 +645,14 @@ ice_add_marker_act(struct ice_hw *hw, struct ice_fltr_mgmt_list_entry *m_ent,
         act |= (1 << ICE_LG_ACT_GENERIC_VALUE_S) & ICE_LG_ACT_GENERIC_VALUE_M;
         lg_act->pdata.lg_act.act[1] = cpu_to_le32(act);
 
-        act = (7 << ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_VALUE_M;
+        act = (ICE_LG_ACT_GENERIC_OFF_RX_DESC_PROF_IDX <<
+               ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_OFFSET_M;
 
         /* Third action Marker value */
         act |= ICE_LG_ACT_GENERIC;
         act |= (sw_marker << ICE_LG_ACT_GENERIC_VALUE_S) &
                 ICE_LG_ACT_GENERIC_VALUE_M;
 
-        act |= (0 << ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_VALUE_M;
         lg_act->pdata.lg_act.act[2] = cpu_to_le32(act);
 
         /* call the fill switch rule to fill the lookup tx rx structure */
diff --git a/drivers/net/ethernet/intel/ice/ice_switch.h b/drivers/net/ethernet/intel/ice/ice_switch.h
index 6f4a0d159dbf..9b8ec128ee31 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.h
+++ b/drivers/net/ethernet/intel/ice/ice_switch.h
@@ -17,7 +17,7 @@ struct ice_vsi_ctx {
         u16 vsis_unallocated;
         u16 flags;
         struct ice_aqc_vsi_props info;
-        bool alloc_from_pool;
+        u8 alloc_from_pool;
 };
 
 enum ice_sw_fwd_act_type {
@@ -94,8 +94,8 @@ struct ice_fltr_info {
         u8 qgrp_size;
 
         /* Rule creations populate these indicators basing on the switch type */
-        bool lb_en;     /* Indicate if packet can be looped back */
-        bool lan_en;    /* Indicate if packet can be forwarded to the uplink */
+        u8 lb_en;       /* Indicate if packet can be looped back */
+        u8 lan_en;      /* Indicate if packet can be forwarded to the uplink */
 };
 
 /* Bookkeeping structure to hold bitmap of VSIs corresponding to VSI list id */
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h
index 567067b650c4..31bc998fe200 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.h
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.h
@@ -143,7 +143,7 @@ struct ice_ring {
         u16 next_to_use;
         u16 next_to_clean;
 
-        bool ring_active;               /* is ring online or not */
+        u8 ring_active;                 /* is ring online or not */
 
         /* stats structs */
         struct ice_q_stats      stats;
diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h
index 99c8a9a71b5e..97c366e0ca59 100644
--- a/drivers/net/ethernet/intel/ice/ice_type.h
+++ b/drivers/net/ethernet/intel/ice/ice_type.h
@@ -83,7 +83,7 @@ struct ice_link_status {
         u64 phy_type_low;
         u16 max_frame_size;
         u16 link_speed;
-        bool lse_ena;   /* Link Status Event notification */
+        u8 lse_ena;     /* Link Status Event notification */
         u8 link_info;
         u8 an_info;
         u8 ext_info;
@@ -101,7 +101,7 @@ struct ice_phy_info {
         struct ice_link_status link_info_old;
         u64 phy_type_low;
         enum ice_media_type media_type;
-        bool get_link_info;
+        u8 get_link_info;
 };
 
 /* Common HW capabilities for SW use */
@@ -167,7 +167,7 @@ struct ice_nvm_info {
         u32 oem_ver;              /* OEM version info */
         u16 sr_words;             /* Shadow RAM size in words */
         u16 ver;                  /* NVM package version */
-        bool blank_nvm_mode;      /* is NVM empty (no FW present) */
+        u8 blank_nvm_mode;        /* is NVM empty (no FW present) */
 };
 
 /* Max number of port to queue branches w.r.t topology */
@@ -181,7 +181,7 @@ struct ice_sched_node {
         struct ice_aqc_txsched_elem_data info;
         u32 agg_id;                     /* aggregator group id */
         u16 vsi_id;
-        bool in_use;                    /* suspended or in use */
+        u8 in_use;                      /* suspended or in use */
         u8 tx_sched_layer;              /* Logical Layer (1-9) */
         u8 num_children;
         u8 tc_num;
@@ -218,7 +218,7 @@ struct ice_sched_vsi_info {
 struct ice_sched_tx_policy {
         u16 max_num_vsis;
         u8 max_num_lan_qs_per_tc[ICE_MAX_TRAFFIC_CLASS];
-        bool rdma_ena;
+        u8 rdma_ena;
 };
 
 struct ice_port_info {
@@ -243,7 +243,7 @@ struct ice_port_info {
         struct list_head agg_list;      /* lists all aggregator */
         u8 lport;
 #define ICE_LPORT_MASK          0xff
-        bool is_vf;
+        u8 is_vf;
 };
 
 struct ice_switch_info {
@@ -287,7 +287,7 @@ struct ice_hw {
         u8 max_cgds;
         u8 sw_entry_point_layer;
 
-        bool evb_veb;           /* true for VEB, false for VEPA */
+        u8 evb_veb;             /* true for VEB, false for VEPA */
         struct ice_bus_info bus;
         struct ice_nvm_info nvm;
         struct ice_hw_dev_caps dev_caps;        /* device capabilities */
@@ -318,7 +318,7 @@ struct ice_hw {
         u8 itr_gran_100;
         u8 itr_gran_50;
         u8 itr_gran_25;
-        bool ucast_shared;      /* true if VSIs can share unicast addr */
+        u8 ucast_shared;        /* true if VSIs can share unicast addr */
 
 };
 
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index f92f7918112d..5acf3b743876 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -1649,7 +1649,7 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter)
         if (hw->phy.type == e1000_phy_m88)
                 igb_phy_disable_receiver(adapter);
 
-        mdelay(500);
+        msleep(500);
         return 0;
 }
 
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index d03c2f0d7592..a32c576c1e65 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -3873,7 +3873,7 @@ static int igb_sw_init(struct igb_adapter *adapter)
 
         adapter->mac_table = kcalloc(hw->mac.rar_entry_count,
                                      sizeof(struct igb_mac_addr),
-                                     GFP_ATOMIC);
+                                     GFP_KERNEL);
         if (!adapter->mac_table)
                 return -ENOMEM;
 
@@ -3883,7 +3883,7 @@ static int igb_sw_init(struct igb_adapter *adapter)
 
         /* Setup and initialize a copy of the hw vlan table array */
         adapter->shadow_vfta = kcalloc(E1000_VLAN_FILTER_TBL_SIZE, sizeof(u32),
-                                       GFP_ATOMIC);
+                                       GFP_KERNEL);
         if (!adapter->shadow_vfta)
                 return -ENOMEM;
 
@@ -5816,7 +5816,8 @@ static void igb_tx_csum(struct igb_ring *tx_ring, struct igb_tx_buffer *first)
 
         if (skb->ip_summed != CHECKSUM_PARTIAL) {
 csum_failed:
-                if (!(first->tx_flags & IGB_TX_FLAGS_VLAN))
+                if (!(first->tx_flags & IGB_TX_FLAGS_VLAN) &&
+                    !tx_ring->launchtime_enable)
                         return;
                 goto no_csum;
         }
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index 43664adf7a3c..d3e72d0f66ef 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -771,14 +771,13 @@ ixgb_setup_rx_resources(struct ixgb_adapter *adapter)
         rxdr->size = rxdr->count * sizeof(struct ixgb_rx_desc);
         rxdr->size = ALIGN(rxdr->size, 4096);
 
-        rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
-                                        GFP_KERNEL);
+        rxdr->desc = dma_zalloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
+                                         GFP_KERNEL);
 
         if (!rxdr->desc) {
                 vfree(rxdr->buffer_info);
                 return -ENOMEM;
         }
-        memset(rxdr->desc, 0, rxdr->size);
 
         rxdr->next_to_clean = 0;
         rxdr->next_to_use = 0;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
index 94b3165ff543..ccd852ad62a4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
@@ -192,7 +192,7 @@ static int ixgbe_fcoe_ddp_setup(struct net_device *netdev, u16 xid,
         }
 
         /* alloc the udl from per cpu ddp pool */
-        ddp->udl = dma_pool_alloc(ddp_pool->pool, GFP_ATOMIC, &ddp->udp);
+        ddp->udl = dma_pool_alloc(ddp_pool->pool, GFP_KERNEL, &ddp->udp);
         if (!ddp->udl) {
                 e_err(drv, "failed allocated ddp context\n");
                 goto out_noddp_unmap;
@@ -760,7 +760,7 @@ int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter)
                 return 0;
 
         /* Extra buffer to be shared by all DDPs for HW work around */
-        buffer = kmalloc(IXGBE_FCBUFF_MIN, GFP_ATOMIC);
+        buffer = kmalloc(IXGBE_FCBUFF_MIN, GFP_KERNEL);
         if (!buffer)
                 return -ENOMEM;
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 447098005490..9a23d33a47ed 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -6201,7 +6201,7 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter,
 
         adapter->mac_table = kcalloc(hw->mac.num_rar_entries,
                                      sizeof(struct ixgbe_mac_addr),
-                                     GFP_ATOMIC);
+                                     GFP_KERNEL);
         if (!adapter->mac_table)
                 return -ENOMEM;
 
@@ -6620,8 +6620,18 @@ static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu)
         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 
         if (adapter->xdp_prog) {
-                e_warn(probe, "MTU cannot be changed while XDP program is loaded\n");
-                return -EPERM;
+                int new_frame_size = new_mtu + ETH_HLEN + ETH_FCS_LEN +
+                                     VLAN_HLEN;
+                int i;
+
+                for (i = 0; i < adapter->num_rx_queues; i++) {
+                        struct ixgbe_ring *ring = adapter->rx_ring[i];
+
+                        if (new_frame_size > ixgbe_rx_bufsz(ring)) {
+                                e_warn(probe, "Requested MTU size is not supported with XDP\n");
+                                return -EINVAL;
+                        }
+                }
         }
 
         /*
@@ -8983,6 +8993,15 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc)
 
 #ifdef CONFIG_IXGBE_DCB
         if (tc) {
+                if (adapter->xdp_prog) {
+                        e_warn(probe, "DCB is not supported with XDP\n");
+
+                        ixgbe_init_interrupt_scheme(adapter);
+                        if (netif_running(dev))
+                                ixgbe_open(dev);
+                        return -EINVAL;
+                }
+
                 netdev_set_num_tc(dev, tc);
                 ixgbe_set_prio_tc_map(adapter);
 
@@ -9171,14 +9190,12 @@ static int parse_tc_actions(struct ixgbe_adapter *adapter,
                             struct tcf_exts *exts, u64 *action, u8 *queue)
 {
         const struct tc_action *a;
-        LIST_HEAD(actions);
+        int i;
 
         if (!tcf_exts_has_actions(exts))
                 return -EINVAL;
 
-        tcf_exts_to_list(exts, &actions);
-        list_for_each_entry(a, &actions, list) {
-
+        tcf_exts_for_each_action(i, a, exts) {
                 /* Drop action */
                 if (is_tcf_gact_shot(a)) {
                         *action = IXGBE_FDIR_DROP_QUEUE;
@@ -9936,6 +9953,11 @@ static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev)
         int tcs = adapter->hw_tcs ? : 1;
         int pool, err;
 
+        if (adapter->xdp_prog) {
+                e_warn(probe, "L2FW offload is not supported with XDP\n");
+                return ERR_PTR(-EINVAL);
+        }
+
         /* The hardware supported by ixgbe only filters on the destination MAC
          * address. In order to avoid issues we only support offloading modes
          * where the hardware can actually provide the functionality.
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 6f59933cdff7..3c6f01c41b78 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -53,6 +53,11 @@ static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
         struct ixgbe_hw *hw = &adapter->hw;
         int i;
 
+        if (adapter->xdp_prog) {
+                e_warn(probe, "SRIOV is not supported with XDP\n");
+                return -EINVAL;
+        }
+
         /* Enable VMDq flag so device will be set in VM mode */
         adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED |
                           IXGBE_FLAG_VMDQ_ENABLED;
@@ -688,8 +693,13 @@ static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
 {
         struct ixgbe_hw *hw = &adapter->hw;
+        struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
         struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
+        u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
         u8 num_tcs = adapter->hw_tcs;
+        u32 reg_val;
+        u32 queue;
+        u32 word;
 
         /* remove VLAN filters beloning to this VF */
         ixgbe_clear_vf_vlans(adapter, vf);
@@ -726,6 +736,27 @@ static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
 
         /* reset VF api back to unknown */
         adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
+
+        /* Restart each queue for given VF */
+        for (queue = 0; queue < q_per_pool; queue++) {
+                unsigned int reg_idx = (vf * q_per_pool) + queue;
+
+                reg_val = IXGBE_READ_REG(hw, IXGBE_PVFTXDCTL(reg_idx));
+
+                /* Re-enabling only configured queues */
+                if (reg_val) {
+                        reg_val |= IXGBE_TXDCTL_ENABLE;
+                        IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
+                        reg_val &= ~IXGBE_TXDCTL_ENABLE;
+                        IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
+                }
+        }
+
+        /* Clear VF's mailbox memory */
+        for (word = 0; word < IXGBE_VFMAILBOX_SIZE; word++)
+                IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf), word, 0);
+
+        IXGBE_WRITE_FLUSH(hw);
 }
 
 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 44cfb2021145..41bcbb337e83 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -2518,6 +2518,7 @@ enum {
 /* Translated register #defines */
 #define IXGBE_PVFTDH(P)         (0x06010 + (0x40 * (P)))
 #define IXGBE_PVFTDT(P)         (0x06018 + (0x40 * (P)))
+#define IXGBE_PVFTXDCTL(P)      (0x06028 + (0x40 * (P)))
 #define IXGBE_PVFTDWBAL(P)      (0x06038 + (0x40 * (P)))
 #define IXGBE_PVFTDWBAH(P)      (0x0603C + (0x40 * (P)))
 
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 32d785b616e1..28500417843e 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -4803,6 +4803,7 @@ static int mvpp2_port_probe(struct platform_device *pdev,
         dev->min_mtu = ETH_MIN_MTU;
         /* 9704 == 9728 - 20 and rounding to 8 */
         dev->max_mtu = MVPP2_BM_JUMBO_PKT_SIZE;
+        dev->dev.of_node = port_node;
 
         /* Phylink isn't used w/ ACPI as of now */
         if (port_node) {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 9131a1376e7d..9fed54017659 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -1982,14 +1982,15 @@ static bool modify_header_match_supported(struct mlx5_flow_spec *spec,
                 goto out_ok;
 
         modify_ip_header = false;
-        tcf_exts_to_list(exts, &actions);
-        list_for_each_entry(a, &actions, list) {
+        tcf_exts_for_each_action(i, a, exts) {
+                int k;
+
                 if (!is_tcf_pedit(a))
                         continue;
 
                 nkeys = tcf_pedit_nkeys(a);
-                for (i = 0; i < nkeys; i++) {
-                        htype = tcf_pedit_htype(a, i);
+                for (k = 0; k < nkeys; k++) {
+                        htype = tcf_pedit_htype(a, k);
                         if (htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 ||
                             htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP6) {
                                 modify_ip_header = true;
@@ -2053,15 +2054,14 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
         const struct tc_action *a;
         LIST_HEAD(actions);
         u32 action = 0;
-        int err;
+        int err, i;
 
         if (!tcf_exts_has_actions(exts))
                 return -EINVAL;
 
         attr->flow_tag = MLX5_FS_DEFAULT_FLOW_TAG;
 
-        tcf_exts_to_list(exts, &actions);
-        list_for_each_entry(a, &actions, list) {
+        tcf_exts_for_each_action(i, a, exts) {
                 if (is_tcf_gact_shot(a)) {
                         action |= MLX5_FLOW_CONTEXT_ACTION_DROP;
                         if (MLX5_CAP_FLOWTABLE(priv->mdev,
@@ -2666,7 +2666,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
         LIST_HEAD(actions);
         bool encap = false;
         u32 action = 0;
-        int err;
+        int err, i;
 
         if (!tcf_exts_has_actions(exts))
                 return -EINVAL;
@@ -2674,8 +2674,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
         attr->in_rep = rpriv->rep;
         attr->in_mdev = priv->mdev;
 
-        tcf_exts_to_list(exts, &actions);
-        list_for_each_entry(a, &actions, list) {
+        tcf_exts_for_each_action(i, a, exts) {
                 if (is_tcf_gact_shot(a)) {
                         action |= MLX5_FLOW_CONTEXT_ACTION_DROP |
                                   MLX5_FLOW_CONTEXT_ACTION_COUNT;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wq.c b/drivers/net/ethernet/mellanox/mlx5/core/wq.c
index 86478a6b99c5..c8c315eb5128 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/wq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/wq.c
@@ -139,14 +139,15 @@ int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
                       struct mlx5_wq_ctrl *wq_ctrl)
 {
         u32 sq_strides_offset;
+        u32 rq_pg_remainder;
         int err;
 
         mlx5_fill_fbc(MLX5_GET(qpc, qpc, log_rq_stride) + 4,
                       MLX5_GET(qpc, qpc, log_rq_size),
                       &wq->rq.fbc);
 
-        sq_strides_offset =
-                ((wq->rq.fbc.frag_sz_m1 + 1) % PAGE_SIZE) / MLX5_SEND_WQE_BB;
+        rq_pg_remainder   = mlx5_wq_cyc_get_byte_size(&wq->rq) % PAGE_SIZE;
+        sq_strides_offset = rq_pg_remainder / MLX5_SEND_WQE_BB;
 
         mlx5_fill_fbc_offset(ilog2(MLX5_SEND_WQE_BB),
                              MLX5_GET(qpc, qpc, log_sq_size),
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 6070d1591d1e..930700413b1d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -1346,8 +1346,7 @@ static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
                 return -ENOMEM;
         mall_tc_entry->cookie = f->cookie;
 
-        tcf_exts_to_list(f->exts, &actions);
-        a = list_first_entry(&actions, struct tc_action, list);
+        a = tcf_exts_first_action(f->exts);
 
         if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) {
                 struct mlxsw_sp_port_mall_mirror_tc_entry *mirror;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 3ae930196741..3cdb7aca90b7 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -414,6 +414,8 @@ mlxsw_sp_netdevice_ipip_ul_event(struct mlxsw_sp *mlxsw_sp,
 void
 mlxsw_sp_port_vlan_router_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan);
 void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif);
+void mlxsw_sp_rif_destroy_by_dev(struct mlxsw_sp *mlxsw_sp,
+                                 struct net_device *dev);
 
 /* spectrum_kvdl.c */
 enum mlxsw_sp_kvdl_entry_type {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
index ebd1b24ebaa5..8d211972c5e9 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
@@ -21,8 +21,7 @@ static int mlxsw_sp_flower_parse_actions(struct mlxsw_sp *mlxsw_sp,
                                          struct netlink_ext_ack *extack)
 {
         const struct tc_action *a;
-        LIST_HEAD(actions);
-        int err;
+        int err, i;
 
         if (!tcf_exts_has_actions(exts))
                 return 0;
@@ -32,8 +31,7 @@ static int mlxsw_sp_flower_parse_actions(struct mlxsw_sp *mlxsw_sp,
         if (err)
                 return err;
 
-        tcf_exts_to_list(exts, &actions);
-        list_for_each_entry(a, &actions, list) {
+        tcf_exts_for_each_action(i, a, exts) {
                 if (is_tcf_gact_ok(a)) {
                         err = mlxsw_sp_acl_rulei_act_terminate(rulei);
                         if (err) {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 3a96307f51b0..2ab9cf25a08a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -6234,6 +6234,17 @@ void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif)
         mlxsw_sp_vr_put(mlxsw_sp, vr);
 }
 
+void mlxsw_sp_rif_destroy_by_dev(struct mlxsw_sp *mlxsw_sp,
+                                 struct net_device *dev)
+{
+        struct mlxsw_sp_rif *rif;
+
+        rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
+        if (!rif)
+                return;
+        mlxsw_sp_rif_destroy(rif);
+}
+
 static void
 mlxsw_sp_rif_subport_params_init(struct mlxsw_sp_rif_params *params,
                                  struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 0d8444aaba01..db715da7bab7 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -127,6 +127,24 @@ bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp,
         return !!mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
 }
 
+static int mlxsw_sp_bridge_device_upper_rif_destroy(struct net_device *dev,
+                                                    void *data)
+{
+        struct mlxsw_sp *mlxsw_sp = data;
+
+        mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev);
+        return 0;
+}
+
+static void mlxsw_sp_bridge_device_rifs_destroy(struct mlxsw_sp *mlxsw_sp,
+                                                struct net_device *dev)
+{
+        mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev);
+        netdev_walk_all_upper_dev_rcu(dev,
+                                      mlxsw_sp_bridge_device_upper_rif_destroy,
+                                      mlxsw_sp);
+}
+
 static struct mlxsw_sp_bridge_device *
 mlxsw_sp_bridge_device_create(struct mlxsw_sp_bridge *bridge,
                               struct net_device *br_dev)
@@ -165,6 +183,8 @@ static void
 mlxsw_sp_bridge_device_destroy(struct mlxsw_sp_bridge *bridge,
                                struct mlxsw_sp_bridge_device *bridge_device)
 {
+        mlxsw_sp_bridge_device_rifs_destroy(bridge->mlxsw_sp,
+                                            bridge_device->dev);
         list_del(&bridge_device->list);
         if (bridge_device->vlan_enabled)
                 bridge->vlan_enabled_exists = false;
diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c
index 0ba0356ec4e6..9044496803e6 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/action.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/action.c
@@ -796,11 +796,10 @@ int nfp_flower_compile_action(struct nfp_app *app,
                               struct net_device *netdev,
                               struct nfp_fl_payload *nfp_flow)
 {
-        int act_len, act_cnt, err, tun_out_cnt, out_cnt;
+        int act_len, act_cnt, err, tun_out_cnt, out_cnt, i;
         enum nfp_flower_tun_type tun_type;
         const struct tc_action *a;
         u32 csum_updated = 0;
-        LIST_HEAD(actions);
 
         memset(nfp_flow->action_data, 0, NFP_FL_MAX_A_SIZ);
         nfp_flow->meta.act_len = 0;
@@ -810,8 +809,7 @@ int nfp_flower_compile_action(struct nfp_app *app,
         tun_out_cnt = 0;
         out_cnt = 0;
 
-        tcf_exts_to_list(flow->exts, &actions);
-        list_for_each_entry(a, &actions, list) {
+        tcf_exts_for_each_action(i, a, flow->exts) {
                 err = nfp_flower_loop_action(app, a, flow, nfp_flow, &act_len,
                                              netdev, &tun_type, &tun_out_cnt,
                                              &out_cnt, &csum_updated);
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index a8b9fbab5f73..253bdaef1505 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -229,29 +229,16 @@ done:
         spin_unlock_bh(&nn->reconfig_lock);
 }
 
-/**
- * nfp_net_reconfig() - Reconfigure the firmware
- * @nn:      NFP Net device to reconfigure
- * @update:  The value for the update field in the BAR config
- *
- * Write the update word to the BAR and ping the reconfig queue.  The
- * poll until the firmware has acknowledged the update by zeroing the
- * update word.
- *
- * Return: Negative errno on error, 0 on success
- */
-int nfp_net_reconfig(struct nfp_net *nn, u32 update)
+static void nfp_net_reconfig_sync_enter(struct nfp_net *nn)
 {
         bool cancelled_timer = false;
         u32 pre_posted_requests;
-        int ret;
 
         spin_lock_bh(&nn->reconfig_lock);
 
         nn->reconfig_sync_present = true;
 
         if (nn->reconfig_timer_active) {
-                del_timer(&nn->reconfig_timer);
                 nn->reconfig_timer_active = false;
                 cancelled_timer = true;
         }
@@ -260,14 +247,43 @@ int nfp_net_reconfig(struct nfp_net *nn, u32 update)
 
         spin_unlock_bh(&nn->reconfig_lock);
 
-        if (cancelled_timer)
+        if (cancelled_timer) {
+                del_timer_sync(&nn->reconfig_timer);
                 nfp_net_reconfig_wait(nn, nn->reconfig_timer.expires);
+        }
 
         /* Run the posted reconfigs which were issued before we started */
         if (pre_posted_requests) {
                 nfp_net_reconfig_start(nn, pre_posted_requests);
                 nfp_net_reconfig_wait(nn, jiffies + HZ * NFP_NET_POLL_TIMEOUT);
         }
+}
+
+static void nfp_net_reconfig_wait_posted(struct nfp_net *nn)
+{
+        nfp_net_reconfig_sync_enter(nn);
+
+        spin_lock_bh(&nn->reconfig_lock);
+        nn->reconfig_sync_present = false;
+        spin_unlock_bh(&nn->reconfig_lock);
+}
+
+/**
+ * nfp_net_reconfig() - Reconfigure the firmware
+ * @nn:      NFP Net device to reconfigure
+ * @update:  The value for the update field in the BAR config
+ *
+ * Write the update word to the BAR and ping the reconfig queue.  The
+ * poll until the firmware has acknowledged the update by zeroing the
+ * update word.
+ *
+ * Return: Negative errno on error, 0 on success
+ */
+int nfp_net_reconfig(struct nfp_net *nn, u32 update)
+{
+        int ret;
+
+        nfp_net_reconfig_sync_enter(nn);
 
         nfp_net_reconfig_start(nn, update);
         ret = nfp_net_reconfig_wait(nn, jiffies + HZ * NFP_NET_POLL_TIMEOUT);
@@ -3633,6 +3649,7 @@ struct nfp_net *nfp_net_alloc(struct pci_dev *pdev, bool needs_netdev,
  */
 void nfp_net_free(struct nfp_net *nn)
 {
+        WARN_ON(timer_pending(&nn->reconfig_timer) || nn->reconfig_posted);
         if (nn->dp.netdev)
                 free_netdev(nn->dp.netdev);
         else
@@ -3920,4 +3937,5 @@ void nfp_net_clean(struct nfp_net *nn)
                 return;
 
         unregister_netdev(nn->dp.netdev);
+        nfp_net_reconfig_wait_posted(nn);
 }
diff --git a/drivers/net/ethernet/qlogic/qed/qed_init_ops.c b/drivers/net/ethernet/qlogic/qed/qed_init_ops.c
index d9ab5add27a8..34193c2f1699 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_init_ops.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_init_ops.c
@@ -407,7 +407,7 @@ static void qed_init_cmd_rd(struct qed_hwfn *p_hwfn,
 
         if (i == QED_INIT_MAX_POLL_COUNT) {
                 DP_ERR(p_hwfn,
-                       "Timeout when polling reg: 0x%08x [ Waiting-for: %08x Got: %08x (comparsion %08x)]\n",
+                       "Timeout when polling reg: 0x%08x [ Waiting-for: %08x Got: %08x (comparison %08x)]\n",
                        addr, le32_to_cpu(cmd->expected_val),
                        val, le32_to_cpu(cmd->op_data));
         }
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index d89a0e22f6e4..5d37ec7e9b0b 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -48,7 +48,7 @@
 #include "qed_reg_addr.h"
 #include "qed_sriov.h"
 
-#define CHIP_MCP_RESP_ITER_US 10
+#define QED_MCP_RESP_ITER_US    10
 
 #define QED_DRV_MB_MAX_RETRIES  (500 * 1000)    /* Account for 5 sec */
 #define QED_MCP_RESET_RETRIES   (50 * 1000)     /* Account for 500 msec */
@@ -183,18 +183,57 @@ int qed_mcp_free(struct qed_hwfn *p_hwfn)
         return 0;
 }
 
+/* Maximum of 1 sec to wait for the SHMEM ready indication */
+#define QED_MCP_SHMEM_RDY_MAX_RETRIES   20
+#define QED_MCP_SHMEM_RDY_ITER_MS       50
+
 static int qed_load_mcp_offsets(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
         struct qed_mcp_info *p_info = p_hwfn->mcp_info;
+        u8 cnt = QED_MCP_SHMEM_RDY_MAX_RETRIES;
+        u8 msec = QED_MCP_SHMEM_RDY_ITER_MS;
         u32 drv_mb_offsize, mfw_mb_offsize;
         u32 mcp_pf_id = MCP_PF_ID(p_hwfn);
 
         p_info->public_base = qed_rd(p_hwfn, p_ptt, MISC_REG_SHARED_MEM_ADDR);
-        if (!p_info->public_base)
-                return 0;
+        if (!p_info->public_base) {
+                DP_NOTICE(p_hwfn,
+                          "The address of the MCP scratch-pad is not configured\n");
+                return -EINVAL;
+        }
 
         p_info->public_base |= GRCBASE_MCP;
 
+        /* Get the MFW MB address and number of supported messages */
+        mfw_mb_offsize = qed_rd(p_hwfn, p_ptt,
+                                SECTION_OFFSIZE_ADDR(p_info->public_base,
+                                                     PUBLIC_MFW_MB));
+        p_info->mfw_mb_addr = SECTION_ADDR(mfw_mb_offsize, mcp_pf_id);
+        p_info->mfw_mb_length = (u16)qed_rd(p_hwfn, p_ptt,
+                                            p_info->mfw_mb_addr +
+                                            offsetof(struct public_mfw_mb,
+                                                     sup_msgs));
+
+        /* The driver can notify that there was an MCP reset, and might read the
+         * SHMEM values before the MFW has completed initializing them.
+         * To avoid this, the "sup_msgs" field in the MFW mailbox is used as a
+         * data ready indication.
+         */
+        while (!p_info->mfw_mb_length && --cnt) {
+                msleep(msec);
+                p_info->mfw_mb_length =
+                        (u16)qed_rd(p_hwfn, p_ptt,
+                                    p_info->mfw_mb_addr +
+                                    offsetof(struct public_mfw_mb, sup_msgs));
+        }
+
+        if (!cnt) {
+                DP_NOTICE(p_hwfn,
+                          "Failed to get the SHMEM ready notification after %d msec\n",
+                          QED_MCP_SHMEM_RDY_MAX_RETRIES * msec);
+                return -EBUSY;
+        }
+
         /* Calculate the driver and MFW mailbox address */
         drv_mb_offsize = qed_rd(p_hwfn, p_ptt,
                                 SECTION_OFFSIZE_ADDR(p_info->public_base,
@@ -204,13 +243,6 @@ static int qed_load_mcp_offsets(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
                    "drv_mb_offsiz = 0x%x, drv_mb_addr = 0x%x mcp_pf_id = 0x%x\n",
                    drv_mb_offsize, p_info->drv_mb_addr, mcp_pf_id);
 
-        /* Set the MFW MB address */
-        mfw_mb_offsize = qed_rd(p_hwfn, p_ptt,
-                                SECTION_OFFSIZE_ADDR(p_info->public_base,
-                                                     PUBLIC_MFW_MB));
-        p_info->mfw_mb_addr = SECTION_ADDR(mfw_mb_offsize, mcp_pf_id);
-        p_info->mfw_mb_length = (u16)qed_rd(p_hwfn, p_ptt, p_info->mfw_mb_addr);
-
         /* Get the current driver mailbox sequence before sending
          * the first command
          */
@@ -285,9 +317,15 @@ static void qed_mcp_reread_offsets(struct qed_hwfn *p_hwfn,
 
 int qed_mcp_reset(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
-        u32 org_mcp_reset_seq, seq, delay = CHIP_MCP_RESP_ITER_US, cnt = 0;
+        u32 org_mcp_reset_seq, seq, delay = QED_MCP_RESP_ITER_US, cnt = 0;
         int rc = 0;
 
+        if (p_hwfn->mcp_info->b_block_cmd) {
+                DP_NOTICE(p_hwfn,
+                          "The MFW is not responsive. Avoid sending MCP_RESET mailbox command.\n");
+                return -EBUSY;
+        }
+
         /* Ensure that only a single thread is accessing the mailbox */
         spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
 
@@ -413,14 +451,41 @@ static void __qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
                    (p_mb_params->cmd | seq_num), p_mb_params->param);
 }
 
+static void qed_mcp_cmd_set_blocking(struct qed_hwfn *p_hwfn, bool block_cmd)
+{
+        p_hwfn->mcp_info->b_block_cmd = block_cmd;
+
+        DP_INFO(p_hwfn, "%s sending of mailbox commands to the MFW\n",
+                block_cmd ? "Block" : "Unblock");
+}
+
+static void qed_mcp_print_cpu_info(struct qed_hwfn *p_hwfn,
+                                   struct qed_ptt *p_ptt)
+{
+        u32 cpu_mode, cpu_state, cpu_pc_0, cpu_pc_1, cpu_pc_2;
+        u32 delay = QED_MCP_RESP_ITER_US;
+
+        cpu_mode = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE);
+        cpu_state = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_STATE);
+        cpu_pc_0 = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_PROGRAM_COUNTER);
+        udelay(delay);
+        cpu_pc_1 = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_PROGRAM_COUNTER);
+        udelay(delay);
+        cpu_pc_2 = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_PROGRAM_COUNTER);
+
+        DP_NOTICE(p_hwfn,
+                  "MCP CPU info: mode 0x%08x, state 0x%08x, pc {0x%08x, 0x%08x, 0x%08x}\n",
+                  cpu_mode, cpu_state, cpu_pc_0, cpu_pc_1, cpu_pc_2);
+}
+
 static int
 _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
                        struct qed_ptt *p_ptt,
                        struct qed_mcp_mb_params *p_mb_params,
-                       u32 max_retries, u32 delay)
+                       u32 max_retries, u32 usecs)
 {
+        u32 cnt = 0, msecs = DIV_ROUND_UP(usecs, 1000);
         struct qed_mcp_cmd_elem *p_cmd_elem;
-        u32 cnt = 0;
         u16 seq_num;
         int rc = 0;
 
@@ -443,7 +508,11 @@ _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
                         goto err;
 
                 spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
-                udelay(delay);
+
+                if (QED_MB_FLAGS_IS_SET(p_mb_params, CAN_SLEEP))
+                        msleep(msecs);
+                else
+                        udelay(usecs);
         } while (++cnt < max_retries);
 
         if (cnt >= max_retries) {
@@ -472,7 +541,11 @@ _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
                  * The spinlock stays locked until the list element is removed.
                  */
 
-                udelay(delay);
+                if (QED_MB_FLAGS_IS_SET(p_mb_params, CAN_SLEEP))
+                        msleep(msecs);
+                else
+                        udelay(usecs);
+
                 spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
 
                 if (p_cmd_elem->b_is_completed)
@@ -491,11 +564,15 @@ _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
                 DP_NOTICE(p_hwfn,
                           "The MFW failed to respond to command 0x%08x [param 0x%08x].\n",
                           p_mb_params->cmd, p_mb_params->param);
+                qed_mcp_print_cpu_info(p_hwfn, p_ptt);
 
                 spin_lock_bh(&p_hwfn->mcp_info->cmd_lock);
                 qed_mcp_cmd_del_elem(p_hwfn, p_cmd_elem);
                 spin_unlock_bh(&p_hwfn->mcp_info->cmd_lock);
 
+                if (!QED_MB_FLAGS_IS_SET(p_mb_params, AVOID_BLOCK))
+                        qed_mcp_cmd_set_blocking(p_hwfn, true);
+
                 return -EAGAIN;
         }
 
@@ -507,7 +584,7 @@ _qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
                    "MFW mailbox: response 0x%08x param 0x%08x [after %d.%03d ms]\n",
                    p_mb_params->mcp_resp,
                    p_mb_params->mcp_param,
-                   (cnt * delay) / 1000, (cnt * delay) % 1000);
+                   (cnt * usecs) / 1000, (cnt * usecs) % 1000);
 
         /* Clear the sequence number from the MFW response */
         p_mb_params->mcp_resp &= FW_MSG_CODE_MASK;
@@ -525,7 +602,7 @@ static int qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
 {
         size_t union_data_size = sizeof(union drv_union_data);
         u32 max_retries = QED_DRV_MB_MAX_RETRIES;
-        u32 delay = CHIP_MCP_RESP_ITER_US;
+        u32 usecs = QED_MCP_RESP_ITER_US;
 
         /* MCP not initialized */
         if (!qed_mcp_is_init(p_hwfn)) {
@@ -533,6 +610,13 @@ static int qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
                 return -EBUSY;
         }
 
+        if (p_hwfn->mcp_info->b_block_cmd) {
+                DP_NOTICE(p_hwfn,
+                          "The MFW is not responsive. Avoid sending mailbox command 0x%08x [param 0x%08x].\n",
+                          p_mb_params->cmd, p_mb_params->param);
+                return -EBUSY;
+        }
+
         if (p_mb_params->data_src_size > union_data_size ||
             p_mb_params->data_dst_size > union_data_size) {
                 DP_ERR(p_hwfn,
@@ -542,8 +626,13 @@ static int qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
                 return -EINVAL;
         }
 
+        if (QED_MB_FLAGS_IS_SET(p_mb_params, CAN_SLEEP)) {
+                max_retries = DIV_ROUND_UP(max_retries, 1000);
+                usecs *= 1000;
+        }
+
         return _qed_mcp_cmd_and_union(p_hwfn, p_ptt, p_mb_params, max_retries,
-                                      delay);
+                                      usecs);
 }
 
 int qed_mcp_cmd(struct qed_hwfn *p_hwfn,
@@ -761,6 +850,7 @@ __qed_mcp_load_req(struct qed_hwfn *p_hwfn,
         mb_params.data_src_size = sizeof(load_req);
         mb_params.p_data_dst = &load_rsp;
         mb_params.data_dst_size = sizeof(load_rsp);
+        mb_params.flags = QED_MB_FLAG_CAN_SLEEP | QED_MB_FLAG_AVOID_BLOCK;
 
         DP_VERBOSE(p_hwfn, QED_MSG_SP,
                    "Load Request: param 0x%08x [init_hw %d, drv_type %d, hsi_ver %d, pda 0x%04x]\n",
@@ -982,7 +1072,8 @@ int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
 
 int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
-        u32 wol_param, mcp_resp, mcp_param;
+        struct qed_mcp_mb_params mb_params;
+        u32 wol_param;
 
         switch (p_hwfn->cdev->wol_config) {
         case QED_OV_WOL_DISABLED:
@@ -1000,8 +1091,12 @@ int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
                 wol_param = DRV_MB_PARAM_UNLOAD_WOL_MCP;
         }
 
-        return qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_UNLOAD_REQ, wol_param,
-                           &mcp_resp, &mcp_param);
+        memset(&mb_params, 0, sizeof(mb_params));
+        mb_params.cmd = DRV_MSG_CODE_UNLOAD_REQ;
+        mb_params.param = wol_param;
+        mb_params.flags = QED_MB_FLAG_CAN_SLEEP | QED_MB_FLAG_AVOID_BLOCK;
+
+        return qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
 }
 
 int qed_mcp_unload_done(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
@@ -2077,31 +2172,65 @@ qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn,
         return rc;
 }
 
+/* A maximal 100 msec waiting time for the MCP to halt */
+#define QED_MCP_HALT_SLEEP_MS           10
+#define QED_MCP_HALT_MAX_RETRIES        10
+
 int qed_mcp_halt(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
-        u32 resp = 0, param = 0;
+        u32 resp = 0, param = 0, cpu_state, cnt = 0;
         int rc;
 
         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_MCP_HALT, 0, &resp,
                          &param);
-        if (rc)
+        if (rc) {
                 DP_ERR(p_hwfn, "MCP response failure, aborting\n");
+                return rc;
+        }
 
-        return rc;
+        do {
+                msleep(QED_MCP_HALT_SLEEP_MS);
+                cpu_state = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_STATE);
+                if (cpu_state & MCP_REG_CPU_STATE_SOFT_HALTED)
+                        break;
+        } while (++cnt < QED_MCP_HALT_MAX_RETRIES);
+
+        if (cnt == QED_MCP_HALT_MAX_RETRIES) {
+                DP_NOTICE(p_hwfn,
+                          "Failed to halt the MCP [CPU_MODE = 0x%08x, CPU_STATE = 0x%08x]\n",
+                          qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE), cpu_state);
+                return -EBUSY;
+        }
+
+        qed_mcp_cmd_set_blocking(p_hwfn, true);
+
+        return 0;
 }
 
+#define QED_MCP_RESUME_SLEEP_MS 10
+
 int qed_mcp_resume(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
-        u32 value, cpu_mode;
+        u32 cpu_mode, cpu_state;
 
         qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_STATE, 0xffffffff);
 
-        value = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE);
-        value &= ~MCP_REG_CPU_MODE_SOFT_HALT;
-        qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_MODE, value);
         cpu_mode = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE);
+        cpu_mode &= ~MCP_REG_CPU_MODE_SOFT_HALT;
+        qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_MODE, cpu_mode);
+        msleep(QED_MCP_RESUME_SLEEP_MS);
+        cpu_state = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_STATE);
 
-        return (cpu_mode & MCP_REG_CPU_MODE_SOFT_HALT) ? -EAGAIN : 0;
+        if (cpu_state & MCP_REG_CPU_STATE_SOFT_HALTED) {
+                DP_NOTICE(p_hwfn,
+                          "Failed to resume the MCP [CPU_MODE = 0x%08x, CPU_STATE = 0x%08x]\n",
+                          cpu_mode, cpu_state);
+                return -EBUSY;
+        }
+
+        qed_mcp_cmd_set_blocking(p_hwfn, false);
+
+        return 0;
 }
 
 int qed_mcp_ov_update_current_config(struct qed_hwfn *p_hwfn,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.h b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
index 047976d5c6e9..85e6b3989e7a 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
@@ -635,11 +635,14 @@ struct qed_mcp_info {
          */
         spinlock_t                              cmd_lock;
 
+        /* Flag to indicate whether sending a MFW mailbox command is blocked */
+        bool                                    b_block_cmd;
+
         /* Spinlock used for syncing SW link-changes and link-changes
          * originating from attention context.
          */
         spinlock_t                              link_lock;
-        bool                                    block_mb_sending;
+
         u32                                     public_base;
         u32                                     drv_mb_addr;
         u32                                     mfw_mb_addr;
@@ -660,14 +663,20 @@ struct qed_mcp_info {
 };
 
 struct qed_mcp_mb_params {
-        u32                     cmd;
-        u32                     param;
-        void                    *p_data_src;
-        u8                      data_src_size;
-        void                    *p_data_dst;
-        u8                      data_dst_size;
-        u32                     mcp_resp;
-        u32                     mcp_param;
+        u32 cmd;
+        u32 param;
+        void *p_data_src;
+        void *p_data_dst;
+        u8 data_src_size;
+        u8 data_dst_size;
+        u32 mcp_resp;
+        u32 mcp_param;
+        u32 flags;
+#define QED_MB_FLAG_CAN_SLEEP   (0x1 << 0)
+#define QED_MB_FLAG_AVOID_BLOCK (0x1 << 1)
+#define QED_MB_FLAGS_IS_SET(params, flag) \
+        ({ typeof(params) __params = (params); \
+           (__params && (__params->flags & QED_MB_FLAG_ ## flag)); })
 };
 
 struct qed_drv_tlv_hdr {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
index d8ad2dcad8d5..f736f70956fd 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
@@ -562,8 +562,10 @@
         0
 #define MCP_REG_CPU_STATE \
         0xe05004UL
+#define MCP_REG_CPU_STATE_SOFT_HALTED   (0x1UL << 10)
 #define MCP_REG_CPU_EVENT_MASK \
         0xe05008UL
+#define MCP_REG_CPU_PROGRAM_COUNTER     0xe0501cUL
 #define PGLUE_B_REG_PF_BAR0_SIZE \
         0x2aae60UL
 #define PGLUE_B_REG_PF_BAR1_SIZE \
diff --git a/drivers/net/ethernet/qlogic/qede/qede_filter.c b/drivers/net/ethernet/qlogic/qede/qede_filter.c
index 9673d19308e6..b16ce7d93caf 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_filter.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_filter.c
@@ -2006,18 +2006,16 @@ unlock:
 static int qede_parse_actions(struct qede_dev *edev,
                               struct tcf_exts *exts)
 {
-        int rc = -EINVAL, num_act = 0;
+        int rc = -EINVAL, num_act = 0, i;
         const struct tc_action *a;
         bool is_drop = false;
-        LIST_HEAD(actions);
 
         if (!tcf_exts_has_actions(exts)) {
                 DP_NOTICE(edev, "No tc actions received\n");
                 return rc;
         }
 
-        tcf_exts_to_list(exts, &actions);
-        list_for_each_entry(a, &actions, list) {
+        tcf_exts_for_each_action(i, a, exts) {
                 num_act++;
 
                 if (is_tcf_gact_shot(a))
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index 353f1c129af1..059ba9429e51 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -2384,26 +2384,20 @@ static int qlge_update_hw_vlan_features(struct net_device *ndev,
         return status;
 }
 
-static netdev_features_t qlge_fix_features(struct net_device *ndev,
-        netdev_features_t features)
-{
-        int err;
-
-        /* Update the behavior of vlan accel in the adapter */
-        err = qlge_update_hw_vlan_features(ndev, features);
-        if (err)
-                return err;
-
-        return features;
-}
-
 static int qlge_set_features(struct net_device *ndev,
         netdev_features_t features)
 {
         netdev_features_t changed = ndev->features ^ features;
+        int err;
+
+        if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
+                /* Update the behavior of vlan accel in the adapter */
+                err = qlge_update_hw_vlan_features(ndev, features);
+                if (err)
+                        return err;
 
-        if (changed & NETIF_F_HW_VLAN_CTAG_RX)
                 qlge_vlan_mode(ndev, features);
+        }
 
         return 0;
 }
@@ -4719,7 +4713,6 @@ static const struct net_device_ops qlge_netdev_ops = {
         .ndo_set_mac_address    = qlge_set_mac_address,
         .ndo_validate_addr      = eth_validate_addr,
         .ndo_tx_timeout         = qlge_tx_timeout,
-        .ndo_fix_features       = qlge_fix_features,
         .ndo_set_features       = qlge_set_features,
         .ndo_vlan_rx_add_vid    = qlge_vlan_rx_add_vid,
         .ndo_vlan_rx_kill_vid   = qlge_vlan_rx_kill_vid,
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 0efa977c422d..b08d51bf7a20 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -218,6 +218,7 @@ static const struct pci_device_id rtl8169_pci_tbl[] = {
         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8161), 0, 0, RTL_CFG_1 },
         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8167), 0, 0, RTL_CFG_0 },
         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8168), 0, 0, RTL_CFG_1 },
+        { PCI_DEVICE(PCI_VENDOR_ID_NCUBE,       0x8168), 0, 0, RTL_CFG_1 },
         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8169), 0, 0, RTL_CFG_0 },
         { PCI_VENDOR_ID_DLINK,                  0x4300,
                 PCI_VENDOR_ID_DLINK, 0x4b10,             0, 0, RTL_CFG_1 },
@@ -4522,7 +4523,7 @@ static void rtl8169_hw_reset(struct rtl8169_private *tp)
         rtl_hw_reset(tp);
 }
 
-static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
+static void rtl_set_tx_config_registers(struct rtl8169_private *tp)
 {
         /* Set DMA burst size and Interframe Gap Time */
         RTL_W32(tp, TxConfig, (TX_DMA_BURST << TxDMAShift) |
@@ -4633,12 +4634,14 @@ static void rtl_hw_start(struct  rtl8169_private *tp)
 
         rtl_set_rx_max_size(tp);
         rtl_set_rx_tx_desc_registers(tp);
-        rtl_set_rx_tx_config_registers(tp);
+        rtl_set_tx_config_registers(tp);
         RTL_W8(tp, Cfg9346, Cfg9346_Lock);
 
         /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
         RTL_R8(tp, IntrMask);
         RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb);
+        rtl_init_rxcfg(tp);
+
         rtl_set_rx_mode(tp->dev);
         /* no early-rx interrupts */
         RTL_W16(tp, MultiIntr, RTL_R16(tp, MultiIntr) & 0xf000);
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index b81f4faf7b10..1470fc12282b 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Renesas Ethernet AVB device driver
  *
  * Copyright (C) 2014-2015 Renesas Electronics Corporation
@@ -5,10 +6,6 @@
  * Copyright (C) 2015-2016 Cogent Embedded, Inc. <source@cogentembedded.com>
  *
  * Based on the SuperH Ethernet driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License version 2,
- * as published by the Free Software Foundation.
  */
 
 #ifndef __RAVB_H__
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index c06f2df895c2..aff5516b781e 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Renesas Ethernet AVB device driver
  *
  * Copyright (C) 2014-2015 Renesas Electronics Corporation
@@ -5,10 +6,6 @@
  * Copyright (C) 2015-2016 Cogent Embedded, Inc. <source@cogentembedded.com>
  *
  * Based on the SuperH Ethernet driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License version 2,
- * as published by the Free Software Foundation.
  */
 
 #include <linux/cache.h>
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5573199c4536..f27a0dc8c563 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*  SuperH Ethernet device driver
  *
  *  Copyright (C) 2014 Renesas Electronics Corporation
@@ -5,18 +6,6 @@
  *  Copyright (C) 2008-2014 Renesas Solutions Corp.
  *  Copyright (C) 2013-2017 Cogent Embedded, Inc.
  *  Copyright (C) 2014 Codethink Limited
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms and conditions of the GNU General Public License,
- *  version 2, as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope 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.
- *
- *  The full GNU General Public License is included in this distribution in
- *  the file called "COPYING".
  */
 
 #include <linux/module.h>
@@ -809,6 +798,41 @@ static struct sh_eth_cpu_data r8a77980_data = {
         .magic          = 1,
         .cexcr          = 1,
 };
+
+/* R7S9210 */
+static struct sh_eth_cpu_data r7s9210_data = {
+        .soft_reset     = sh_eth_soft_reset,
+
+        .set_duplex     = sh_eth_set_duplex,
+        .set_rate       = sh_eth_set_rate_rcar,
+
+        .register_type  = SH_ETH_REG_FAST_SH4,
+
+        .edtrr_trns     = EDTRR_TRNS_ETHER,
+        .ecsr_value     = ECSR_ICD,
+        .ecsipr_value   = ECSIPR_ICDIP,
+        .eesipr_value   = EESIPR_TWBIP | EESIPR_TABTIP | EESIPR_RABTIP |
+                          EESIPR_RFCOFIP | EESIPR_ECIIP | EESIPR_FTCIP |
+                          EESIPR_TDEIP | EESIPR_TFUFIP | EESIPR_FRIP |
+                          EESIPR_RDEIP | EESIPR_RFOFIP | EESIPR_CNDIP |
+                          EESIPR_DLCIP | EESIPR_CDIP | EESIPR_TROIP |
+                          EESIPR_RMAFIP | EESIPR_RRFIP | EESIPR_RTLFIP |
+                          EESIPR_RTSFIP | EESIPR_PREIP | EESIPR_CERFIP,
+
+        .tx_check       = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO,
+        .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
+                          EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
+
+        .fdr_value      = 0x0000070f,
+
+        .apr            = 1,
+        .mpr            = 1,
+        .tpauser        = 1,
+        .hw_swap        = 1,
+        .rpadir         = 1,
+        .no_ade         = 1,
+        .xdfar_rw       = 1,
+};
 #endif /* CONFIG_OF */
 
 static void sh_eth_set_rate_sh7724(struct net_device *ndev)
@@ -3132,6 +3156,7 @@ static const struct of_device_id sh_eth_match_table[] = {
         { .compatible = "renesas,ether-r8a7794", .data = &rcar_gen2_data },
         { .compatible = "renesas,gether-r8a77980", .data = &r8a77980_data },
         { .compatible = "renesas,ether-r7s72100", .data = &r7s72100_data },
+        { .compatible = "renesas,ether-r7s9210", .data = &r7s9210_data },
         { .compatible = "renesas,rcar-gen1-ether", .data = &rcar_gen1_data },
         { .compatible = "renesas,rcar-gen2-ether", .data = &rcar_gen2_data },
         { }
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index f94be99cf400..0c18650bbfe6 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -1,19 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*  SuperH Ethernet device driver
  *
  *  Copyright (C) 2006-2012 Nobuhiro Iwamatsu
  *  Copyright (C) 2008-2012 Renesas Solutions Corp.
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms and conditions of the GNU General Public License,
- *  version 2, as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope 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.
- *
- *  The full GNU General Public License is included in this distribution in
- *  the file called "COPYING".
  */
 
 #ifndef __SH_ETH_H__
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
index edf20361ea5f..324049eebb9b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
@@ -33,7 +33,7 @@ config DWMAC_DWC_QOS_ETH
         select PHYLIB
         select CRC32
         select MII
-        depends on OF && COMMON_CLK && HAS_DMA
+        depends on OF && HAS_DMA
         help
           Support for chips using the snps,dwc-qos-ethernet.txt DT binding.
 
@@ -57,7 +57,7 @@ config DWMAC_ANARION
 config DWMAC_IPQ806X
         tristate "QCA IPQ806x DWMAC support"
         default ARCH_QCOM
-        depends on OF && COMMON_CLK && (ARCH_QCOM || COMPILE_TEST)
+        depends on OF && (ARCH_QCOM || COMPILE_TEST)
         select MFD_SYSCON
         help
           Support for QCA IPQ806X DWMAC Ethernet.
@@ -100,7 +100,7 @@ config DWMAC_OXNAS
 config DWMAC_ROCKCHIP
         tristate "Rockchip dwmac support"
         default ARCH_ROCKCHIP
-        depends on OF && COMMON_CLK && (ARCH_ROCKCHIP || COMPILE_TEST)
+        depends on OF && (ARCH_ROCKCHIP || COMPILE_TEST)
         select MFD_SYSCON
         help
           Support for Ethernet controller on Rockchip RK3288 SoC.
@@ -110,7 +110,7 @@ config DWMAC_ROCKCHIP
 
 config DWMAC_SOCFPGA
         tristate "SOCFPGA dwmac support"
-        default ARCH_SOCFPGA
+        default (ARCH_SOCFPGA || ARCH_STRATIX10)
         depends on OF && (ARCH_SOCFPGA || ARCH_STRATIX10 || COMPILE_TEST)
         select MFD_SYSCON
         help
@@ -123,7 +123,7 @@ config DWMAC_SOCFPGA
 config DWMAC_STI
         tristate "STi GMAC support"
         default ARCH_STI
-        depends on OF && COMMON_CLK && (ARCH_STI || COMPILE_TEST)
+        depends on OF && (ARCH_STI || COMPILE_TEST)
         select MFD_SYSCON
         ---help---
           Support for ethernet controller on STi SOCs.
@@ -147,7 +147,7 @@ config DWMAC_STM32
 config DWMAC_SUNXI
         tristate "Allwinner GMAC support"
         default ARCH_SUNXI
-        depends on OF && COMMON_CLK && (ARCH_SUNXI || COMPILE_TEST)
+        depends on OF && (ARCH_SUNXI || COMPILE_TEST)
         ---help---
           Support for Allwinner A20/A31 GMAC ethernet controllers.
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index 76649adf8fb0..c0a855b7ab3b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -112,7 +112,6 @@ struct stmmac_priv {
         u32 tx_count_frames;
         u32 tx_coal_frames;
         u32 tx_coal_timer;
-        bool tx_timer_armed;
 
         int tx_coalesce;
         int hwts_tx_en;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index ff1ffb46198a..9f458bb16f2a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3147,16 +3147,13 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
          * element in case of no SG.
          */
         priv->tx_count_frames += nfrags + 1;
-        if (likely(priv->tx_coal_frames > priv->tx_count_frames) &&
-            !priv->tx_timer_armed) {
+        if (likely(priv->tx_coal_frames > priv->tx_count_frames)) {
                 mod_timer(&priv->txtimer,
                           STMMAC_COAL_TIMER(priv->tx_coal_timer));
-                priv->tx_timer_armed = true;
         } else {
                 priv->tx_count_frames = 0;
                 stmmac_set_tx_ic(priv, desc);
                 priv->xstats.tx_set_ic_bit++;
-                priv->tx_timer_armed = false;
         }
 
         skb_tx_timestamp(skb);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
index 1a96dd9c1091..531294f4978b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
@@ -61,7 +61,7 @@ static int tc_fill_actions(struct stmmac_tc_entry *entry,
         struct stmmac_tc_entry *action_entry = entry;
         const struct tc_action *act;
         struct tcf_exts *exts;
-        LIST_HEAD(actions);
+        int i;
 
         exts = cls->knode.exts;
         if (!tcf_exts_has_actions(exts))
@@ -69,8 +69,7 @@ static int tc_fill_actions(struct stmmac_tc_entry *entry,
         if (frag)
                 action_entry = frag;
 
-        tcf_exts_to_list(exts, &actions);
-        list_for_each_entry(act, &actions, list) {
+        tcf_exts_for_each_action(i, act, exts) {
                 /* Accept */
                 if (is_tcf_gact_ok(act)) {
                         action_entry->val.af = 1;
diff --git a/drivers/net/ethernet/ti/cpsw-phy-sel.c b/drivers/net/ethernet/ti/cpsw-phy-sel.c
index 0c1adad7415d..396e1cd10667 100644
--- a/drivers/net/ethernet/ti/cpsw-phy-sel.c
+++ b/drivers/net/ethernet/ti/cpsw-phy-sel.c
@@ -170,10 +170,13 @@ void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave)
         struct device_node *node;
         struct cpsw_phy_sel_priv *priv;
 
-        node = of_get_child_by_name(dev->of_node, "cpsw-phy-sel");
+        node = of_parse_phandle(dev->of_node, "cpsw-phy-sel", 0);
         if (!node) {
-                dev_err(dev, "Phy mode driver DT not found\n");
-                return;
+                node = of_get_child_by_name(dev->of_node, "cpsw-phy-sel");
+                if (!node) {
+                        dev_err(dev, "Phy mode driver DT not found\n");
+                        return;
+                }
         }
 
         dev = bus_find_device(&platform_bus_type, NULL, node, match);
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 507f68190cb1..70921bbe0e28 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -29,6 +29,7 @@
 #include <linux/netdevice.h>
 #include <linux/inetdevice.h>
 #include <linux/etherdevice.h>
+#include <linux/pci.h>
 #include <linux/skbuff.h>
 #include <linux/if_vlan.h>
 #include <linux/in.h>
@@ -2039,12 +2040,16 @@ static int netvsc_register_vf(struct net_device *vf_netdev)
 {
         struct net_device *ndev;
         struct net_device_context *net_device_ctx;
+        struct device *pdev = vf_netdev->dev.parent;
         struct netvsc_device *netvsc_dev;
         int ret;
 
         if (vf_netdev->addr_len != ETH_ALEN)
                 return NOTIFY_DONE;
 
+        if (!pdev || !dev_is_pci(pdev) || dev_is_pf(pdev))
+                return NOTIFY_DONE;
+
         /*
          * We will use the MAC address to locate the synthetic interface to
          * associate with the VF interface. If we don't find a matching
@@ -2201,6 +2206,16 @@ static int netvsc_probe(struct hv_device *dev,
 
         memcpy(net->dev_addr, device_info.mac_adr, ETH_ALEN);
 
+        /* We must get rtnl lock before scheduling nvdev->subchan_work,
+         * otherwise netvsc_subchan_work() can get rtnl lock first and wait
+         * all subchannels to show up, but that may not happen because
+         * netvsc_probe() can't get rtnl lock and as a result vmbus_onoffer()
+         * -> ... -> device_add() -> ... -> __device_attach() can't get
+         * the device lock, so all the subchannels can't be processed --
+         * finally netvsc_subchan_work() hangs for ever.
+         */
+        rtnl_lock();
+
         if (nvdev->num_chn > 1)
                 schedule_work(&nvdev->subchan_work);
 
@@ -2219,7 +2234,6 @@ static int netvsc_probe(struct hv_device *dev,
         else
                 net->max_mtu = ETH_DATA_LEN;
 
-        rtnl_lock();
         ret = register_netdevice(net);
         if (ret != 0) {
                 pr_err("Unable to register netdev.\n");
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 4637d980310e..52fffb98fde9 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -398,7 +398,6 @@ static umode_t sfp_hwmon_is_visible(const void *data,
         switch (type) {
         case hwmon_temp:
                 switch (attr) {
-                case hwmon_temp_input:
                 case hwmon_temp_min_alarm:
                 case hwmon_temp_max_alarm:
                 case hwmon_temp_lcrit_alarm:
@@ -407,13 +406,16 @@ static umode_t sfp_hwmon_is_visible(const void *data,
                 case hwmon_temp_max:
                 case hwmon_temp_lcrit:
                 case hwmon_temp_crit:
+                        if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN))
+                                return 0;
+                        /* fall through */
+                case hwmon_temp_input:
                         return 0444;
                 default:
                         return 0;
                 }
         case hwmon_in:
                 switch (attr) {
-                case hwmon_in_input:
                 case hwmon_in_min_alarm:
                 case hwmon_in_max_alarm:
                 case hwmon_in_lcrit_alarm:
@@ -422,13 +424,16 @@ static umode_t sfp_hwmon_is_visible(const void *data,
                 case hwmon_in_max:
                 case hwmon_in_lcrit:
                 case hwmon_in_crit:
+                        if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN))
+                                return 0;
+                        /* fall through */
+                case hwmon_in_input:
                         return 0444;
                 default:
                         return 0;
                 }
         case hwmon_curr:
                 switch (attr) {
-                case hwmon_curr_input:
                 case hwmon_curr_min_alarm:
                 case hwmon_curr_max_alarm:
                 case hwmon_curr_lcrit_alarm:
@@ -437,6 +442,10 @@ static umode_t sfp_hwmon_is_visible(const void *data,
                 case hwmon_curr_max:
                 case hwmon_curr_lcrit:
                 case hwmon_curr_crit:
+                        if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN))
+                                return 0;
+                        /* fall through */
+                case hwmon_curr_input:
                         return 0444;
                 default:
                         return 0;
@@ -452,7 +461,6 @@ static umode_t sfp_hwmon_is_visible(const void *data,
                     channel == 1)
                         return 0;
                 switch (attr) {
-                case hwmon_power_input:
                 case hwmon_power_min_alarm:
                 case hwmon_power_max_alarm:
                 case hwmon_power_lcrit_alarm:
@@ -461,6 +469,10 @@ static umode_t sfp_hwmon_is_visible(const void *data,
                 case hwmon_power_max:
                 case hwmon_power_lcrit:
                 case hwmon_power_crit:
+                        if (!(sfp->id.ext.enhopts & SFP_ENHOPTS_ALARMWARN))
+                                return 0;
+                        /* fall through */
+                case hwmon_power_input:
                         return 0444;
                 default:
                         return 0;
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 97742708460b..2cd71bdb6484 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -5217,8 +5217,8 @@ static int rtl8152_probe(struct usb_interface *intf,
                 netdev->hw_features &= ~NETIF_F_RXCSUM;
         }
 
-        if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 &&
-            udev->serial && !strcmp(udev->serial, "000001000000")) {
+        if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 && udev->serial &&
+            (!strcmp(udev->serial, "000001000000") || !strcmp(udev->serial, "000002000000"))) {
                 dev_info(&udev->dev, "Dell TB16 Dock, disable RX aggregation");
                 set_bit(DELL_TB_RX_AGG_BUG, &tp->flags);
         }
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index b4c3a957c102..73969dbeb5c5 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -985,15 +985,12 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
         const u8 *nvm_chan = cfg->nvm_type == IWL_NVM_EXT ?
                              iwl_ext_nvm_channels : iwl_nvm_channels;
         struct ieee80211_regdomain *regd, *copy_rd;
-        int size_of_regd, regd_to_copy, wmms_to_copy;
-        int size_of_wmms = 0;
+        int size_of_regd, regd_to_copy;
         struct ieee80211_reg_rule *rule;
-        struct ieee80211_wmm_rule *wmm_rule, *d_wmm, *s_wmm;
         struct regdb_ptrs *regdb_ptrs;
         enum nl80211_band band;
         int center_freq, prev_center_freq = 0;
-        int valid_rules = 0, n_wmms = 0;
-        int i;
+        int valid_rules = 0;
         bool new_rule;
         int max_num_ch = cfg->nvm_type == IWL_NVM_EXT ?
                          IWL_NVM_NUM_CHANNELS_EXT : IWL_NVM_NUM_CHANNELS;
@@ -1012,11 +1009,7 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
                 sizeof(struct ieee80211_regdomain) +
                 num_of_ch * sizeof(struct ieee80211_reg_rule);
 
-        if (geo_info & GEO_WMM_ETSI_5GHZ_INFO)
-                size_of_wmms =
-                        num_of_ch * sizeof(struct ieee80211_wmm_rule);
-
-        regd = kzalloc(size_of_regd + size_of_wmms, GFP_KERNEL);
+        regd = kzalloc(size_of_regd, GFP_KERNEL);
         if (!regd)
                 return ERR_PTR(-ENOMEM);
 
@@ -1030,8 +1023,6 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
         regd->alpha2[0] = fw_mcc >> 8;
         regd->alpha2[1] = fw_mcc & 0xff;
 
-        wmm_rule = (struct ieee80211_wmm_rule *)((u8 *)regd + size_of_regd);
-
         for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
                 ch_flags = (u16)__le32_to_cpup(channels + ch_idx);
                 band = (ch_idx < NUM_2GHZ_CHANNELS) ?
@@ -1085,26 +1076,10 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
                     band == NL80211_BAND_2GHZ)
                         continue;
 
-                if (!reg_query_regdb_wmm(regd->alpha2, center_freq,
-                                         &regdb_ptrs[n_wmms].token, wmm_rule)) {
-                        /* Add only new rules */
-                        for (i = 0; i < n_wmms; i++) {
-                                if (regdb_ptrs[i].token ==
-                                    regdb_ptrs[n_wmms].token) {
-                                        rule->wmm_rule = regdb_ptrs[i].rule;
-                                        break;
-                                }
-                        }
-                        if (i == n_wmms) {
-                                rule->wmm_rule = wmm_rule;
-                                regdb_ptrs[n_wmms++].rule = wmm_rule;
-                                wmm_rule++;
-                        }
-                }
+                reg_query_regdb_wmm(regd->alpha2, center_freq, rule);
         }
 
         regd->n_reg_rules = valid_rules;
-        regd->n_wmm_rules = n_wmms;
 
         /*
          * Narrow down regdom for unused regulatory rules to prevent hole
@@ -1113,28 +1088,13 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
         regd_to_copy = sizeof(struct ieee80211_regdomain) +
                 valid_rules * sizeof(struct ieee80211_reg_rule);
 
-        wmms_to_copy = sizeof(struct ieee80211_wmm_rule) * n_wmms;
-
-        copy_rd = kzalloc(regd_to_copy + wmms_to_copy, GFP_KERNEL);
+        copy_rd = kzalloc(regd_to_copy, GFP_KERNEL);
         if (!copy_rd) {
                 copy_rd = ERR_PTR(-ENOMEM);
                 goto out;
         }
 
         memcpy(copy_rd, regd, regd_to_copy);
-        memcpy((u8 *)copy_rd + regd_to_copy, (u8 *)regd + size_of_regd,
-               wmms_to_copy);
-
-        d_wmm = (struct ieee80211_wmm_rule *)((u8 *)copy_rd + regd_to_copy);
-        s_wmm = (struct ieee80211_wmm_rule *)((u8 *)regd + size_of_regd);
-
-        for (i = 0; i < regd->n_reg_rules; i++) {
-                if (!regd->reg_rules[i].wmm_rule)
-                        continue;
-
-                copy_rd->reg_rules[i].wmm_rule = d_wmm +
-                        (regd->reg_rules[i].wmm_rule - s_wmm);
-        }
 
 out:
         kfree(regdb_ptrs);
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 998dfac0fcff..1068757ec42e 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -34,6 +34,7 @@
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
 #include <linux/rhashtable.h>
+#include <linux/nospec.h>
 #include "mac80211_hwsim.h"
 
 #define WARN_QUEUE 100
@@ -2820,9 +2821,6 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
                                 IEEE80211_VHT_CAP_SHORT_GI_80 |
                                 IEEE80211_VHT_CAP_SHORT_GI_160 |
                                 IEEE80211_VHT_CAP_TXSTBC |
-                                IEEE80211_VHT_CAP_RXSTBC_1 |
-                                IEEE80211_VHT_CAP_RXSTBC_2 |
-                                IEEE80211_VHT_CAP_RXSTBC_3 |
                                 IEEE80211_VHT_CAP_RXSTBC_4 |
                                 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
                         sband->vht_cap.vht_mcs.rx_mcs_map =
@@ -3317,6 +3315,11 @@ static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
         if (info->attrs[HWSIM_ATTR_CHANNELS])
                 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
 
+        if (param.channels < 1) {
+                GENL_SET_ERR_MSG(info, "must have at least one channel");
+                return -EINVAL;
+        }
+
         if (param.channels > CFG80211_MAX_NUM_DIFFERENT_CHANNELS) {
                 GENL_SET_ERR_MSG(info, "too many channels specified");
                 return -EINVAL;
@@ -3350,6 +3353,9 @@ static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
                         kfree(hwname);
                         return -EINVAL;
                 }
+
+                idx = array_index_nospec(idx,
+                                         ARRAY_SIZE(hwsim_world_regdom_custom));
                 param.regd = hwsim_world_regdom_custom[idx];
         }
 
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 1b9951d2067e..d668682f91df 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -316,6 +316,14 @@ static bool nvme_dbbuf_update_and_check_event(u16 value, u32 *dbbuf_db,
                 old_value = *dbbuf_db;
                 *dbbuf_db = value;
 
+                /*
+                 * Ensure that the doorbell is updated before reading the event
+                 * index from memory.  The controller needs to provide similar
+                 * ordering to ensure the envent index is updated before reading
+                 * the doorbell.
+                 */
+                mb();
+
                 if (!nvme_dbbuf_need_event(*dbbuf_ei, value, old_value))
                         return false;
         }
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index ebf3e7a6c49e..b5ec96abd048 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -1210,7 +1210,7 @@ static int __init nvmet_init(void)
 
         error = nvmet_init_discovery();
         if (error)
-                goto out;
+                goto out_free_work_queue;
 
         error = nvmet_init_configfs();
         if (error)
@@ -1219,6 +1219,8 @@ static int __init nvmet_init(void)
 
 out_exit_discovery:
         nvmet_exit_discovery();
+out_free_work_queue:
+        destroy_workqueue(buffered_io_wq);
 out:
         return error;
 }
diff --git a/drivers/nvme/target/fcloop.c b/drivers/nvme/target/fcloop.c
index 34712def81b1..5251689a1d9a 100644
--- a/drivers/nvme/target/fcloop.c
+++ b/drivers/nvme/target/fcloop.c
@@ -311,7 +311,7 @@ fcloop_tgt_lsrqst_done_work(struct work_struct *work)
         struct fcloop_tport *tport = tls_req->tport;
         struct nvmefc_ls_req *lsreq = tls_req->lsreq;
 
-        if (tport->remoteport)
+        if (!tport || tport->remoteport)
                 lsreq->done(lsreq, tls_req->status);
 }
 
@@ -329,6 +329,7 @@ fcloop_ls_req(struct nvme_fc_local_port *localport,
 
         if (!rport->targetport) {
                 tls_req->status = -ECONNREFUSED;
+                tls_req->tport = NULL;
                 schedule_work(&tls_req->work);
                 return ret;
         }
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 466e3c8582f0..9095b8290150 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -54,6 +54,28 @@ DEFINE_MUTEX(of_mutex);
  */
 DEFINE_RAW_SPINLOCK(devtree_lock);
 
+bool of_node_name_eq(const struct device_node *np, const char *name)
+{
+        const char *node_name;
+        size_t len;
+
+        if (!np)
+                return false;
+
+        node_name = kbasename(np->full_name);
+        len = strchrnul(node_name, '@') - node_name;
+
+        return (strlen(name) == len) && (strncmp(node_name, name, len) == 0);
+}
+
+bool of_node_name_prefix(const struct device_node *np, const char *prefix)
+{
+        if (!np)
+                return false;
+
+        return strncmp(kbasename(np->full_name), prefix, strlen(prefix)) == 0;
+}
+
 int of_n_addr_cells(struct device_node *np)
 {
         u32 cells;
@@ -720,6 +742,31 @@ struct device_node *of_get_next_available_child(const struct device_node *node,
 EXPORT_SYMBOL(of_get_next_available_child);
 
 /**
+ * of_get_compatible_child - Find compatible child node
+ * @parent:     parent node
+ * @compatible: compatible string
+ *
+ * Lookup child node whose compatible property contains the given compatible
+ * string.
+ *
+ * Returns a node pointer with refcount incremented, use of_node_put() on it
+ * when done; or NULL if not found.
+ */
+struct device_node *of_get_compatible_child(const struct device_node *parent,
+                                const char *compatible)
+{
+        struct device_node *child;
+
+        for_each_child_of_node(parent, child) {
+                if (of_device_is_compatible(child, compatible))
+                        break;
+        }
+
+        return child;
+}
+EXPORT_SYMBOL(of_get_compatible_child);
+
+/**
  *      of_get_child_by_name - Find the child node by name for a given parent
  *      @node:  parent node
  *      @name:  child name to look for.
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 7ba90c290a42..6c59673933e9 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -241,6 +241,10 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
         if (!dev)
                 goto err_clear_flag;
 
+        /* AMBA devices only support a single DMA mask */
+        dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+        dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
+
         /* setup generic device info */
         dev->dev.of_node = of_node_get(node);
         dev->dev.fwnode = &node->fwnode;
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 8fc851a9e116..7c097006c54d 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -52,12 +52,12 @@ config SCSI_MQ_DEFAULT
         default y
         depends on SCSI
         ---help---
-          This option enables the new blk-mq based I/O path for SCSI
-          devices by default.  With the option the scsi_mod.use_blk_mq
-          module/boot option defaults to Y, without it to N, but it can
-          still be overridden either way.
+          This option enables the blk-mq based I/O path for SCSI devices by
+          default.  With this option the scsi_mod.use_blk_mq module/boot
+          option defaults to Y, without it to N, but it can still be
+          overridden either way.
 
-          If unsure say N.
+          If unsure say Y.
 
 config SCSI_PROC_FS
         bool "legacy /proc/scsi/ support"
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 29bf1e60f542..39eb415987fc 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1346,7 +1346,7 @@ struct fib {
 struct aac_hba_map_info {
         __le32  rmw_nexus;              /* nexus for native HBA devices */
         u8              devtype;        /* device type */
-        u8              reset_state;    /* 0 - no reset, 1..x - */
+        s8              reset_state;    /* 0 - no reset, 1..x - */
                                         /* after xth TM LUN reset */
         u16             qd_limit;
         u32             scan_counter;
diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c
index 23d07e9f87d0..e51923886475 100644
--- a/drivers/scsi/csiostor/csio_hw.c
+++ b/drivers/scsi/csiostor/csio_hw.c
@@ -1602,6 +1602,46 @@ fw_port_cap32_t fwcaps16_to_caps32(fw_port_cap16_t caps16)
 }
 
 /**
+ *      fwcaps32_to_caps16 - convert 32-bit Port Capabilities to 16-bits
+ *      @caps32: a 32-bit Port Capabilities value
+ *
+ *      Returns the equivalent 16-bit Port Capabilities value.  Note that
+ *      not all 32-bit Port Capabilities can be represented in the 16-bit
+ *      Port Capabilities and some fields/values may not make it.
+ */
+fw_port_cap16_t fwcaps32_to_caps16(fw_port_cap32_t caps32)
+{
+        fw_port_cap16_t caps16 = 0;
+
+        #define CAP32_TO_CAP16(__cap) \
+                do { \
+                        if (caps32 & FW_PORT_CAP32_##__cap) \
+                                caps16 |= FW_PORT_CAP_##__cap; \
+                } while (0)
+
+        CAP32_TO_CAP16(SPEED_100M);
+        CAP32_TO_CAP16(SPEED_1G);
+        CAP32_TO_CAP16(SPEED_10G);
+        CAP32_TO_CAP16(SPEED_25G);
+        CAP32_TO_CAP16(SPEED_40G);
+        CAP32_TO_CAP16(SPEED_100G);
+        CAP32_TO_CAP16(FC_RX);
+        CAP32_TO_CAP16(FC_TX);
+        CAP32_TO_CAP16(802_3_PAUSE);
+        CAP32_TO_CAP16(802_3_ASM_DIR);
+        CAP32_TO_CAP16(ANEG);
+        CAP32_TO_CAP16(FORCE_PAUSE);
+        CAP32_TO_CAP16(MDIAUTO);
+        CAP32_TO_CAP16(MDISTRAIGHT);
+        CAP32_TO_CAP16(FEC_RS);
+        CAP32_TO_CAP16(FEC_BASER_RS);
+
+        #undef CAP32_TO_CAP16
+
+        return caps16;
+}
+
+/**
  *      lstatus_to_fwcap - translate old lstatus to 32-bit Port Capabilities
  *      @lstatus: old FW_PORT_ACTION_GET_PORT_INFO lstatus value
  *
@@ -1759,7 +1799,7 @@ csio_enable_ports(struct csio_hw *hw)
                         val = 1;
 
                         csio_mb_params(hw, mbp, CSIO_MB_DEFAULT_TMO,
-                                       hw->pfn, 0, 1, &param, &val, false,
+                                       hw->pfn, 0, 1, &param, &val, true,
                                        NULL);
 
                         if (csio_mb_issue(hw, mbp)) {
@@ -1769,16 +1809,9 @@ csio_enable_ports(struct csio_hw *hw)
                                 return -EINVAL;
                         }
 
-                        csio_mb_process_read_params_rsp(hw, mbp, &retval, 1,
-                                                        &val);
-                        if (retval != FW_SUCCESS) {
-                                csio_err(hw, "FW_PARAMS_CMD(r) port:%d failed: 0x%x\n",
-                                         portid, retval);
-                                mempool_free(mbp, hw->mb_mempool);
-                                return -EINVAL;
-                        }
-
-                        fw_caps = val;
+                        csio_mb_process_read_params_rsp(hw, mbp, &retval,
+                                                        0, NULL);
+                        fw_caps = retval ? FW_CAPS16 : FW_CAPS32;
                 }
 
                 /* Read PORT information */
@@ -2364,8 +2397,8 @@ bye:
 }
 
 /*
- * Returns -EINVAL if attempts to flash the firmware failed
- * else returns 0,
+ * Returns -EINVAL if attempts to flash the firmware failed,
+ * -ENOMEM if memory allocation failed else returns 0,
  * if flashing was not attempted because the card had the
  * latest firmware ECANCELED is returned
  */
@@ -2393,6 +2426,13 @@ csio_hw_flash_fw(struct csio_hw *hw, int *reset)
                 return -EINVAL;
         }
 
+        /* allocate memory to read the header of the firmware on the
+         * card
+         */
+        card_fw = kmalloc(sizeof(*card_fw), GFP_KERNEL);
+        if (!card_fw)
+                return -ENOMEM;
+
         if (csio_is_t5(pci_dev->device & CSIO_HW_CHIP_MASK))
                 fw_bin_file = FW_FNAME_T5;
         else
@@ -2406,11 +2446,6 @@ csio_hw_flash_fw(struct csio_hw *hw, int *reset)
                 fw_size = fw->size;
         }
 
-        /* allocate memory to read the header of the firmware on the
-         * card
-         */
-        card_fw = kmalloc(sizeof(*card_fw), GFP_KERNEL);
-
         /* upgrade FW logic */
         ret = csio_hw_prep_fw(hw, fw_info, fw_data, fw_size, card_fw,
                          hw->fw_state, reset);
diff --git a/drivers/scsi/csiostor/csio_hw.h b/drivers/scsi/csiostor/csio_hw.h
index 9e73ef771eb7..e351af6e7c81 100644
--- a/drivers/scsi/csiostor/csio_hw.h
+++ b/drivers/scsi/csiostor/csio_hw.h
@@ -639,6 +639,7 @@ int csio_handle_intr_status(struct csio_hw *, unsigned int,
 
 fw_port_cap32_t fwcap_to_fwspeed(fw_port_cap32_t acaps);
 fw_port_cap32_t fwcaps16_to_caps32(fw_port_cap16_t caps16);
+fw_port_cap16_t fwcaps32_to_caps16(fw_port_cap32_t caps32);
 fw_port_cap32_t lstatus_to_fwcap(u32 lstatus);
 
 int csio_hw_start(struct csio_hw *);
diff --git a/drivers/scsi/csiostor/csio_mb.c b/drivers/scsi/csiostor/csio_mb.c
index c026417269c3..6f13673d6aa0 100644
--- a/drivers/scsi/csiostor/csio_mb.c
+++ b/drivers/scsi/csiostor/csio_mb.c
@@ -368,7 +368,7 @@ csio_mb_port(struct csio_hw *hw, struct csio_mb *mbp, uint32_t tmo,
                         FW_CMD_LEN16_V(sizeof(*cmdp) / 16));
 
         if (fw_caps == FW_CAPS16)
-                cmdp->u.l1cfg.rcap = cpu_to_be32(fc);
+                cmdp->u.l1cfg.rcap = cpu_to_be32(fwcaps32_to_caps16(fc));
         else
                 cmdp->u.l1cfg32.rcap32 = cpu_to_be32(fc);
 }
@@ -395,8 +395,8 @@ csio_mb_process_read_port_rsp(struct csio_hw *hw, struct csio_mb *mbp,
                         *pcaps = fwcaps16_to_caps32(ntohs(rsp->u.info.pcap));
                         *acaps = fwcaps16_to_caps32(ntohs(rsp->u.info.acap));
                 } else {
-                        *pcaps = ntohs(rsp->u.info32.pcaps32);
-                        *acaps = ntohs(rsp->u.info32.acaps32);
+                        *pcaps = be32_to_cpu(rsp->u.info32.pcaps32);
+                        *acaps = be32_to_cpu(rsp->u.info32.acaps32);
                 }
         }
 }
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index f02dcc875a09..ea4b0bb0c1cd 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -563,35 +563,13 @@ struct Scsi_Host *scsi_host_get(struct Scsi_Host *shost)
 }
 EXPORT_SYMBOL(scsi_host_get);
 
-struct scsi_host_mq_in_flight {
-        int cnt;
-};
-
-static void scsi_host_check_in_flight(struct request *rq, void *data,
-                bool reserved)
-{
-        struct scsi_host_mq_in_flight *in_flight = data;
-
-        if (blk_mq_request_started(rq))
-                in_flight->cnt++;
-}
-
 /**
  * scsi_host_busy - Return the host busy counter
  * @shost:      Pointer to Scsi_Host to inc.
  **/
 int scsi_host_busy(struct Scsi_Host *shost)
 {
-        struct scsi_host_mq_in_flight in_flight = {
-                .cnt = 0,
-        };
-
-        if (!shost->use_blk_mq)
-                return atomic_read(&shost->host_busy);
-
-        blk_mq_tagset_busy_iter(&shost->tag_set, scsi_host_check_in_flight,
-                        &in_flight);
-        return in_flight.cnt;
+        return atomic_read(&shost->host_busy);
 }
 EXPORT_SYMBOL(scsi_host_busy);
 
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 58bb70b886d7..c120929d4ffe 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -976,7 +976,7 @@ static struct scsi_host_template hpsa_driver_template = {
 #endif
         .sdev_attrs = hpsa_sdev_attrs,
         .shost_attrs = hpsa_shost_attrs,
-        .max_sectors = 1024,
+        .max_sectors = 2048,
         .no_write_same = 1,
 };
 
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index e0d0da5f43d6..43732e8d1347 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -672,7 +672,7 @@ struct lpfc_hba {
 #define LS_NPIV_FAB_SUPPORTED 0x2       /* Fabric supports NPIV */
 #define LS_IGNORE_ERATT       0x4       /* intr handler should ignore ERATT */
 #define LS_MDS_LINK_DOWN      0x8       /* MDS Diagnostics Link Down */
-#define LS_MDS_LOOPBACK      0x16       /* MDS Diagnostics Link Up (Loopback) */
+#define LS_MDS_LOOPBACK      0x10       /* MDS Diagnostics Link Up (Loopback) */
 
         uint32_t hba_flag;      /* hba generic flags */
 #define HBA_ERATT_HANDLED       0x1 /* This flag is set when eratt handled */
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 5a25553415f8..057a60abe664 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -5122,16 +5122,16 @@ LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality");
 
 /*
 # lpfc_fdmi_on: Controls FDMI support.
-#       0       No FDMI support (default)
-#       1       Traditional FDMI support
+#       0       No FDMI support
+#       1       Traditional FDMI support (default)
 # Traditional FDMI support means the driver will assume FDMI-2 support;
 # however, if that fails, it will fallback to FDMI-1.
 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on.
 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of
 # lpfc_fdmi_on.
-# Value range [0,1]. Default value is 0.
+# Value range [0,1]. Default value is 1.
 */
-LPFC_ATTR_R(fdmi_on, 0, 0, 1, "Enable FDMI support");
+LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support");
 
 /*
 # Specifies the maximum number of ELS cmds we can have outstanding (for
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 0adfb3bce0fd..eb97d2dd3651 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -345,8 +345,7 @@ static void scsi_dec_host_busy(struct Scsi_Host *shost)
         unsigned long flags;
 
         rcu_read_lock();
-        if (!shost->use_blk_mq)
-                atomic_dec(&shost->host_busy);
+        atomic_dec(&shost->host_busy);
         if (unlikely(scsi_host_in_recovery(shost))) {
                 spin_lock_irqsave(shost->host_lock, flags);
                 if (shost->host_failed || shost->host_eh_scheduled)
@@ -445,12 +444,7 @@ static inline bool scsi_target_is_busy(struct scsi_target *starget)
 
 static inline bool scsi_host_is_busy(struct Scsi_Host *shost)
 {
-        /*
-         * blk-mq can handle host queue busy efficiently via host-wide driver
-         * tag allocation
-         */
-
-        if (!shost->use_blk_mq && shost->can_queue > 0 &&
+        if (shost->can_queue > 0 &&
             atomic_read(&shost->host_busy) >= shost->can_queue)
                 return true;
         if (atomic_read(&shost->host_blocked) > 0)
@@ -1606,10 +1600,7 @@ static inline int scsi_host_queue_ready(struct request_queue *q,
         if (scsi_host_in_recovery(shost))
                 return 0;
 
-        if (!shost->use_blk_mq)
-                busy = atomic_inc_return(&shost->host_busy) - 1;
-        else
-                busy = 0;
+        busy = atomic_inc_return(&shost->host_busy) - 1;
         if (atomic_read(&shost->host_blocked) > 0) {
                 if (busy)
                         goto starved;
@@ -1625,7 +1616,7 @@ static inline int scsi_host_queue_ready(struct request_queue *q,
                                      "unblocking host at zero depth\n"));
         }
 
-        if (!shost->use_blk_mq && shost->can_queue > 0 && busy >= shost->can_queue)
+        if (shost->can_queue > 0 && busy >= shost->can_queue)
                 goto starved;
         if (shost->host_self_blocked)
                 goto starved;
@@ -1711,9 +1702,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
          * with the locks as normal issue path does.
          */
         atomic_inc(&sdev->device_busy);
-
-        if (!shost->use_blk_mq)
-                atomic_inc(&shost->host_busy);
+        atomic_inc(&shost->host_busy);
         if (starget->can_queue > 0)
                 atomic_inc(&starget->target_busy);
 
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_ddp.c b/drivers/target/iscsi/cxgbit/cxgbit_ddp.c
index 768cce0ccb80..76a262674c8d 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_ddp.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_ddp.c
@@ -207,8 +207,8 @@ cxgbit_ddp_reserve(struct cxgbit_sock *csk, struct cxgbi_task_tag_info *ttinfo,
         ret = dma_map_sg(&ppm->pdev->dev, sgl, sgcnt, DMA_FROM_DEVICE);
         sgl->offset = sg_offset;
         if (!ret) {
-                pr_info("%s: 0x%x, xfer %u, sgl %u dma mapping err.\n",
-                        __func__, 0, xferlen, sgcnt);
+                pr_debug("%s: 0x%x, xfer %u, sgl %u dma mapping err.\n",
+                         __func__, 0, xferlen, sgcnt);
                 goto rel_ppods;
         }
 
@@ -250,8 +250,8 @@ cxgbit_get_r2t_ttt(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 
         ret = cxgbit_ddp_reserve(csk, ttinfo, cmd->se_cmd.data_length);
         if (ret < 0) {
-                pr_info("csk 0x%p, cmd 0x%p, xfer len %u, sgcnt %u no ddp.\n",
-                        csk, cmd, cmd->se_cmd.data_length, ttinfo->nents);
+                pr_debug("csk 0x%p, cmd 0x%p, xfer len %u, sgcnt %u no ddp.\n",
+                         csk, cmd, cmd->se_cmd.data_length, ttinfo->nents);
 
                 ttinfo->sgl = NULL;
                 ttinfo->nents = 0;
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index 977a8307fbb1..4f2816559205 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -260,10 +260,13 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz,
 
         mutex_lock(&tz->lock);
 
-        if (mode == THERMAL_DEVICE_ENABLED)
+        if (mode == THERMAL_DEVICE_ENABLED) {
                 tz->polling_delay = data->polling_delay;
-        else
+                tz->passive_delay = data->passive_delay;
+        } else {
                 tz->polling_delay = 0;
+                tz->passive_delay = 0;
+        }
 
         mutex_unlock(&tz->lock);
 
diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c
index c866cc165960..450ed66edf58 100644
--- a/drivers/thermal/qoriq_thermal.c
+++ b/drivers/thermal/qoriq_thermal.c
@@ -1,16 +1,6 @@
-/*
- * Copyright 2016 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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.
- *
- */
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright 2016 Freescale Semiconductor, Inc.
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
@@ -197,7 +187,7 @@ static int qoriq_tmu_probe(struct platform_device *pdev)
         int ret;
         struct qoriq_tmu_data *data;
         struct device_node *np = pdev->dev.of_node;
-        u32 site = 0;
+        u32 site;
 
         if (!np) {
                 dev_err(&pdev->dev, "Device OF-Node is NULL");
@@ -233,8 +223,9 @@ static int qoriq_tmu_probe(struct platform_device *pdev)
         if (ret < 0)
                 goto err_tmu;
 
-        data->tz = thermal_zone_of_sensor_register(&pdev->dev, data->sensor_id,
-                                data, &tmu_tz_ops);
+        data->tz = devm_thermal_zone_of_sensor_register(&pdev->dev,
+                                                        data->sensor_id,
+                                                        data, &tmu_tz_ops);
         if (IS_ERR(data->tz)) {
                 ret = PTR_ERR(data->tz);
                 dev_err(&pdev->dev,
@@ -243,7 +234,7 @@ static int qoriq_tmu_probe(struct platform_device *pdev)
         }
 
         /* Enable monitoring */
-        site |= 0x1 << (15 - data->sensor_id);
+        site = 0x1 << (15 - data->sensor_id);
         tmu_write(data, site | TMR_ME | TMR_ALPF, &data->regs->tmr);
 
         return 0;
@@ -261,8 +252,6 @@ static int qoriq_tmu_remove(struct platform_device *pdev)
 {
         struct qoriq_tmu_data *data = platform_get_drvdata(pdev);
 
-        thermal_zone_of_sensor_unregister(&pdev->dev, data->tz);
-
         /* Disable monitoring */
         tmu_write(data, TMR_DISABLE, &data->regs->tmr);
 
diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
index 766521eb7071..7aed5337bdd3 100644
--- a/drivers/thermal/rcar_gen3_thermal.c
+++ b/drivers/thermal/rcar_gen3_thermal.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  R-Car Gen3 THS thermal sensor driver
  *  Based on rcar_thermal.c and work from Hien Dang and Khiem Nguyen.
  *
  * Copyright (C) 2016 Renesas Electronics Corporation.
  * Copyright (C) 2016 Sang Engineering
- *
- *  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; version 2 of the License.
- *
- *  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.
- *
  */
 #include <linux/delay.h>
 #include <linux/err.h>
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index e77e63070e99..78f932822d38 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  R-Car THS/TSC thermal sensor driver
  *
  * Copyright (C) 2012 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  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.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  */
 #include <linux/delay.h>
 #include <linux/err.h>
@@ -660,6 +648,6 @@ static struct platform_driver rcar_thermal_driver = {
 };
 module_platform_driver(rcar_thermal_driver);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("R-Car THS/TSC thermal sensor driver");
 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 96c1d8400822..b13c6b4b2c66 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -952,7 +952,7 @@ static void vhost_iotlb_notify_vq(struct vhost_dev *d,
         list_for_each_entry_safe(node, n, &d->pending_list, node) {
                 struct vhost_iotlb_msg *vq_msg = &node->msg.iotlb;
                 if (msg->iova <= vq_msg->iova &&
-                    msg->iova + msg->size - 1 > vq_msg->iova &&
+                    msg->iova + msg->size - 1 >= vq_msg->iova &&
                     vq_msg->type == VHOST_IOTLB_MISS) {
                         vhost_poll_queue(&node->vq->poll);
                         list_del(&node->node);
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index f2088838f690..5b471889d723 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -402,10 +402,19 @@ static ssize_t modalias_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(modalias);
 
+static ssize_t state_show(struct device *dev,
+                            struct device_attribute *attr, char *buf)
+{
+        return sprintf(buf, "%s\n",
+                        xenbus_strstate(to_xenbus_device(dev)->state));
+}
+static DEVICE_ATTR_RO(state);
+
 static struct attribute *xenbus_dev_attrs[] = {
         &dev_attr_nodename.attr,
         &dev_attr_devtype.attr,
         &dev_attr_modalias.attr,
+        &dev_attr_state.attr,
         NULL,
 };
 
diff --git a/fs/afs/proc.c b/fs/afs/proc.c
index 0c3285c8db95..476dcbb79713 100644
--- a/fs/afs/proc.c
+++ b/fs/afs/proc.c
@@ -98,13 +98,13 @@ static int afs_proc_cells_write(struct file *file, char *buf, size_t size)
                 goto inval;
 
         args = strchr(name, ' ');
-        if (!args)
-                goto inval;
-        do {
-                *args++ = 0;
-        } while(*args == ' ');
-        if (!*args)
-                goto inval;
+        if (args) {
+                do {
+                        *args++ = 0;
+                } while(*args == ' ');
+                if (!*args)
+                        goto inval;
+        }
 
         /* determine command to perform */
         _debug("cmd=%s name=%s args=%s", buf, name, args);
@@ -120,7 +120,6 @@ static int afs_proc_cells_write(struct file *file, char *buf, size_t size)
 
                 if (test_and_set_bit(AFS_CELL_FL_NO_GC, &cell->flags))
                         afs_put_cell(net, cell);
-                printk("kAFS: Added new cell '%s'\n", name);
         } else {
                 goto inval;
         }
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 53af9f5253f4..2cddfe7806a4 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1280,6 +1280,7 @@ struct btrfs_root {
         int send_in_progress;
         struct btrfs_subvolume_writers *subv_writers;
         atomic_t will_be_snapshotted;
+        atomic_t snapshot_force_cow;
 
         /* For qgroup metadata reserved space */
         spinlock_t qgroup_meta_rsv_lock;
@@ -3390,9 +3391,9 @@ do {									\
 #define btrfs_debug(fs_info, fmt, args...) \
         btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
 #define btrfs_debug_in_rcu(fs_info, fmt, args...) \
-        btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
+        btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
 #define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
-        btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
+        btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
 #define btrfs_debug_rl(fs_info, fmt, args...) \
         btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
 #endif
@@ -3404,6 +3405,13 @@ do {							\
         rcu_read_unlock();                              \
 } while (0)
 
+#define btrfs_no_printk_in_rcu(fs_info, fmt, args...)   \
+do {                                                    \
+        rcu_read_lock();                                \
+        btrfs_no_printk(fs_info, fmt, ##args);          \
+        rcu_read_unlock();                              \
+} while (0)
+
 #define btrfs_printk_ratelimited(fs_info, fmt, args...)         \
 do {                                                            \
         static DEFINE_RATELIMIT_STATE(_rs,                      \
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 5124c15705ce..05dc3c17cb62 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1187,6 +1187,7 @@ static void __setup_root(struct btrfs_root *root, struct btrfs_fs_info *fs_info,
         atomic_set(&root->log_batch, 0);
         refcount_set(&root->refs, 1);
         atomic_set(&root->will_be_snapshotted, 0);
+        atomic_set(&root->snapshot_force_cow, 0);
         root->log_transid = 0;
         root->log_transid_committed = -1;
         root->last_log_commit = 0;
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index de6f75f5547b..2d9074295d7f 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5800,7 +5800,7 @@ void btrfs_trans_release_chunk_metadata(struct btrfs_trans_handle *trans)
  * root: the root of the parent directory
  * rsv: block reservation
  * items: the number of items that we need do reservation
- * qgroup_reserved: used to return the reserved size in qgroup
+ * use_global_rsv: allow fallback to the global block reservation
  *
  * This function is used to reserve the space for snapshot/subvolume
  * creation and deletion. Those operations are different with the
@@ -5810,10 +5810,10 @@ void btrfs_trans_release_chunk_metadata(struct btrfs_trans_handle *trans)
  * the space reservation mechanism in start_transaction().
  */
 int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
-                                     struct btrfs_block_rsv *rsv,
-                                     int items,
+                                     struct btrfs_block_rsv *rsv, int items,
                                      bool use_global_rsv)
 {
+        u64 qgroup_num_bytes = 0;
         u64 num_bytes;
         int ret;
         struct btrfs_fs_info *fs_info = root->fs_info;
@@ -5821,12 +5821,11 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
 
         if (test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags)) {
                 /* One for parent inode, two for dir entries */
-                num_bytes = 3 * fs_info->nodesize;
-                ret = btrfs_qgroup_reserve_meta_prealloc(root, num_bytes, true);
+                qgroup_num_bytes = 3 * fs_info->nodesize;
+                ret = btrfs_qgroup_reserve_meta_prealloc(root,
+                                qgroup_num_bytes, true);
                 if (ret)
                         return ret;
-        } else {
-                num_bytes = 0;
         }
 
         num_bytes = btrfs_calc_trans_metadata_size(fs_info, items);
@@ -5838,8 +5837,8 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
         if (ret == -ENOSPC && use_global_rsv)
                 ret = btrfs_block_rsv_migrate(global_rsv, rsv, num_bytes, 1);
 
-        if (ret && num_bytes)
-                btrfs_qgroup_free_meta_prealloc(root, num_bytes);
+        if (ret && qgroup_num_bytes)
+                btrfs_qgroup_free_meta_prealloc(root, qgroup_num_bytes);
 
         return ret;
 }
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9357a19d2bff..3ea5339603cf 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1271,7 +1271,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
         u64 disk_num_bytes;
         u64 ram_bytes;
         int extent_type;
-        int ret, err;
+        int ret;
         int type;
         int nocow;
         int check_prev = 1;
@@ -1403,11 +1403,8 @@ next_slot:
                          * if there are pending snapshots for this root,
                          * we fall into common COW way.
                          */
-                        if (!nolock) {
-                                err = btrfs_start_write_no_snapshotting(root);
-                                if (!err)
-                                        goto out_check;
-                        }
+                        if (!nolock && atomic_read(&root->snapshot_force_cow))
+                                goto out_check;
                         /*
                          * force cow if csum exists in the range.
                          * this ensure that csum for a given extent are
@@ -1416,9 +1413,6 @@ next_slot:
                         ret = csum_exist_in_range(fs_info, disk_bytenr,
                                                   num_bytes);
                         if (ret) {
-                                if (!nolock)
-                                        btrfs_end_write_no_snapshotting(root);
-
                                 /*
                                  * ret could be -EIO if the above fails to read
                                  * metadata.
@@ -1431,11 +1425,8 @@ next_slot:
                                 WARN_ON_ONCE(nolock);
                                 goto out_check;
                         }
-                        if (!btrfs_inc_nocow_writers(fs_info, disk_bytenr)) {
-                                if (!nolock)
-                                        btrfs_end_write_no_snapshotting(root);
+                        if (!btrfs_inc_nocow_writers(fs_info, disk_bytenr))
                                 goto out_check;
-                        }
                         nocow = 1;
                 } else if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
                         extent_end = found_key.offset +
@@ -1448,8 +1439,6 @@ next_slot:
 out_check:
                 if (extent_end <= start) {
                         path->slots[0]++;
-                        if (!nolock && nocow)
-                                btrfs_end_write_no_snapshotting(root);
                         if (nocow)
                                 btrfs_dec_nocow_writers(fs_info, disk_bytenr);
                         goto next_slot;
@@ -1471,8 +1460,6 @@ out_check:
                                              end, page_started, nr_written, 1,
                                              NULL);
                         if (ret) {
-                                if (!nolock && nocow)
-                                        btrfs_end_write_no_snapshotting(root);
                                 if (nocow)
                                         btrfs_dec_nocow_writers(fs_info,
                                                                 disk_bytenr);
@@ -1492,8 +1479,6 @@ out_check:
                                           ram_bytes, BTRFS_COMPRESS_NONE,
                                           BTRFS_ORDERED_PREALLOC);
                         if (IS_ERR(em)) {
-                                if (!nolock && nocow)
-                                        btrfs_end_write_no_snapshotting(root);
                                 if (nocow)
                                         btrfs_dec_nocow_writers(fs_info,
                                                                 disk_bytenr);
@@ -1532,8 +1517,6 @@ out_check:
                                              EXTENT_CLEAR_DATA_RESV,
                                              PAGE_UNLOCK | PAGE_SET_PRIVATE2);
 
-                if (!nolock && nocow)
-                        btrfs_end_write_no_snapshotting(root);
                 cur_offset = extent_end;
 
                 /*
@@ -6639,6 +6622,8 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
                 drop_inode = 1;
         } else {
                 struct dentry *parent = dentry->d_parent;
+                int ret;
+
                 err = btrfs_update_inode(trans, root, inode);
                 if (err)
                         goto fail;
@@ -6652,7 +6637,12 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
                                 goto fail;
                 }
                 d_instantiate(dentry, inode);
-                btrfs_log_new_name(trans, BTRFS_I(inode), NULL, parent);
+                ret = btrfs_log_new_name(trans, BTRFS_I(inode), NULL, parent,
+                                         true, NULL);
+                if (ret == BTRFS_NEED_TRANS_COMMIT) {
+                        err = btrfs_commit_transaction(trans);
+                        trans = NULL;
+                }
         }
 
 fail:
@@ -9388,14 +9378,21 @@ static int btrfs_rename_exchange(struct inode *old_dir,
         u64 new_idx = 0;
         u64 root_objectid;
         int ret;
-        int ret2;
         bool root_log_pinned = false;
         bool dest_log_pinned = false;
+        struct btrfs_log_ctx ctx_root;
+        struct btrfs_log_ctx ctx_dest;
+        bool sync_log_root = false;
+        bool sync_log_dest = false;
+        bool commit_transaction = false;
 
         /* we only allow rename subvolume link between subvolumes */
         if (old_ino != BTRFS_FIRST_FREE_OBJECTID && root != dest)
                 return -EXDEV;
 
+        btrfs_init_log_ctx(&ctx_root, old_inode);
+        btrfs_init_log_ctx(&ctx_dest, new_inode);
+
         /* close the race window with snapshot create/destroy ioctl */
         if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
                 down_read(&fs_info->subvol_sem);
@@ -9542,15 +9539,29 @@ static int btrfs_rename_exchange(struct inode *old_dir,
 
         if (root_log_pinned) {
                 parent = new_dentry->d_parent;
-                btrfs_log_new_name(trans, BTRFS_I(old_inode), BTRFS_I(old_dir),
-                                parent);
+                ret = btrfs_log_new_name(trans, BTRFS_I(old_inode),
+                                         BTRFS_I(old_dir), parent,
+                                         false, &ctx_root);
+                if (ret == BTRFS_NEED_LOG_SYNC)
+                        sync_log_root = true;
+                else if (ret == BTRFS_NEED_TRANS_COMMIT)
+                        commit_transaction = true;
+                ret = 0;
                 btrfs_end_log_trans(root);
                 root_log_pinned = false;
         }
         if (dest_log_pinned) {
-                parent = old_dentry->d_parent;
-                btrfs_log_new_name(trans, BTRFS_I(new_inode), BTRFS_I(new_dir),
-                                parent);
+                if (!commit_transaction) {
+                        parent = old_dentry->d_parent;
+                        ret = btrfs_log_new_name(trans, BTRFS_I(new_inode),
+                                                 BTRFS_I(new_dir), parent,
+                                                 false, &ctx_dest);
+                        if (ret == BTRFS_NEED_LOG_SYNC)
+                                sync_log_dest = true;
+                        else if (ret == BTRFS_NEED_TRANS_COMMIT)
+                                commit_transaction = true;
+                        ret = 0;
+                }
                 btrfs_end_log_trans(dest);
                 dest_log_pinned = false;
         }
@@ -9583,8 +9594,26 @@ out_fail:
                         dest_log_pinned = false;
                 }
         }
-        ret2 = btrfs_end_transaction(trans);
-        ret = ret ? ret : ret2;
+        if (!ret && sync_log_root && !commit_transaction) {
+                ret = btrfs_sync_log(trans, BTRFS_I(old_inode)->root,
+                                     &ctx_root);
+                if (ret)
+                        commit_transaction = true;
+        }
+        if (!ret && sync_log_dest && !commit_transaction) {
+                ret = btrfs_sync_log(trans, BTRFS_I(new_inode)->root,
+                                     &ctx_dest);
+                if (ret)
+                        commit_transaction = true;
+        }
+        if (commit_transaction) {
+                ret = btrfs_commit_transaction(trans);
+        } else {
+                int ret2;
+
+                ret2 = btrfs_end_transaction(trans);
+                ret = ret ? ret : ret2;
+        }
 out_notrans:
         if (new_ino == BTRFS_FIRST_FREE_OBJECTID)
                 up_read(&fs_info->subvol_sem);
@@ -9661,6 +9690,9 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         int ret;
         u64 old_ino = btrfs_ino(BTRFS_I(old_inode));
         bool log_pinned = false;
+        struct btrfs_log_ctx ctx;
+        bool sync_log = false;
+        bool commit_transaction = false;
 
         if (btrfs_ino(BTRFS_I(new_dir)) == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)
                 return -EPERM;
@@ -9818,8 +9850,15 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         if (log_pinned) {
                 struct dentry *parent = new_dentry->d_parent;
 
-                btrfs_log_new_name(trans, BTRFS_I(old_inode), BTRFS_I(old_dir),
-                                parent);
+                btrfs_init_log_ctx(&ctx, old_inode);
+                ret = btrfs_log_new_name(trans, BTRFS_I(old_inode),
+                                         BTRFS_I(old_dir), parent,
+                                         false, &ctx);
+                if (ret == BTRFS_NEED_LOG_SYNC)
+                        sync_log = true;
+                else if (ret == BTRFS_NEED_TRANS_COMMIT)
+                        commit_transaction = true;
+                ret = 0;
                 btrfs_end_log_trans(root);
                 log_pinned = false;
         }
@@ -9856,7 +9895,19 @@ out_fail:
                 btrfs_end_log_trans(root);
                 log_pinned = false;
         }
-        btrfs_end_transaction(trans);
+        if (!ret && sync_log) {
+                ret = btrfs_sync_log(trans, BTRFS_I(old_inode)->root, &ctx);
+                if (ret)
+                        commit_transaction = true;
+        }
+        if (commit_transaction) {
+                ret = btrfs_commit_transaction(trans);
+        } else {
+                int ret2;
+
+                ret2 = btrfs_end_transaction(trans);
+                ret = ret ? ret : ret2;
+        }
 out_notrans:
         if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
                 up_read(&fs_info->subvol_sem);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 63600dc2ac4c..d60b6caf09e8 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -747,6 +747,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
         struct btrfs_pending_snapshot *pending_snapshot;
         struct btrfs_trans_handle *trans;
         int ret;
+        bool snapshot_force_cow = false;
 
         if (!test_bit(BTRFS_ROOT_REF_COWS, &root->state))
                 return -EINVAL;
@@ -763,6 +764,11 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
                 goto free_pending;
         }
 
+        /*
+         * Force new buffered writes to reserve space even when NOCOW is
+         * possible. This is to avoid later writeback (running dealloc) to
+         * fallback to COW mode and unexpectedly fail with ENOSPC.
+         */
         atomic_inc(&root->will_be_snapshotted);
         smp_mb__after_atomic();
         /* wait for no snapshot writes */
@@ -773,6 +779,14 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
         if (ret)
                 goto dec_and_free;
 
+        /*
+         * All previous writes have started writeback in NOCOW mode, so now
+         * we force future writes to fallback to COW mode during snapshot
+         * creation.
+         */
+        atomic_inc(&root->snapshot_force_cow);
+        snapshot_force_cow = true;
+
         btrfs_wait_ordered_extents(root, U64_MAX, 0, (u64)-1);
 
         btrfs_init_block_rsv(&pending_snapshot->block_rsv,
@@ -837,6 +851,8 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
 fail:
         btrfs_subvolume_release_metadata(fs_info, &pending_snapshot->block_rsv);
 dec_and_free:
+        if (snapshot_force_cow)
+                atomic_dec(&root->snapshot_force_cow);
         if (atomic_dec_and_test(&root->will_be_snapshotted))
                 wake_up_var(&root->will_be_snapshotted);
 free_pending:
@@ -3453,6 +3469,25 @@ static int btrfs_extent_same_range(struct inode *src, u64 loff, u64 olen,
 
                 same_lock_start = min_t(u64, loff, dst_loff);
                 same_lock_len = max_t(u64, loff, dst_loff) + len - same_lock_start;
+        } else {
+                /*
+                 * If the source and destination inodes are different, the
+                 * source's range end offset matches the source's i_size, that
+                 * i_size is not a multiple of the sector size, and the
+                 * destination range does not go past the destination's i_size,
+                 * we must round down the length to the nearest sector size
+                 * multiple. If we don't do this adjustment we end replacing
+                 * with zeroes the bytes in the range that starts at the
+                 * deduplication range's end offset and ends at the next sector
+                 * size multiple.
+                 */
+                if (loff + olen == i_size_read(src) &&
+                    dst_loff + len < i_size_read(dst)) {
+                        const u64 sz = BTRFS_I(src)->root->fs_info->sectorsize;
+
+                        len = round_down(i_size_read(src), sz) - loff;
+                        olen = len;
+                }
         }
 
 again:
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 4353bb69bb86..d4917c0cddf5 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1019,10 +1019,9 @@ out_add_root:
         spin_unlock(&fs_info->qgroup_lock);
 
         ret = btrfs_commit_transaction(trans);
-        if (ret) {
-                trans = NULL;
+        trans = NULL;
+        if (ret)
                 goto out_free_path;
-        }
 
         ret = qgroup_rescan_init(fs_info, 0, 1);
         if (!ret) {
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 1650dc44a5e3..3c2ae0e4f25a 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -6025,14 +6025,25 @@ void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans,
  * Call this after adding a new name for a file and it will properly
  * update the log to reflect the new name.
  *
- * It will return zero if all goes well, and it will return 1 if a
- * full transaction commit is required.
+ * @ctx can not be NULL when @sync_log is false, and should be NULL when it's
+ * true (because it's not used).
+ *
+ * Return value depends on whether @sync_log is true or false.
+ * When true: returns BTRFS_NEED_TRANS_COMMIT if the transaction needs to be
+ *            committed by the caller, and BTRFS_DONT_NEED_TRANS_COMMIT
+ *            otherwise.
+ * When false: returns BTRFS_DONT_NEED_LOG_SYNC if the caller does not need to
+ *             to sync the log, BTRFS_NEED_LOG_SYNC if it needs to sync the log,
+ *             or BTRFS_NEED_TRANS_COMMIT if the transaction needs to be
+ *             committed (without attempting to sync the log).
  */
 int btrfs_log_new_name(struct btrfs_trans_handle *trans,
                         struct btrfs_inode *inode, struct btrfs_inode *old_dir,
-                        struct dentry *parent)
+                        struct dentry *parent,
+                        bool sync_log, struct btrfs_log_ctx *ctx)
 {
         struct btrfs_fs_info *fs_info = trans->fs_info;
+        int ret;
 
         /*
          * this will force the logging code to walk the dentry chain
@@ -6047,9 +6058,34 @@ int btrfs_log_new_name(struct btrfs_trans_handle *trans,
          */
         if (inode->logged_trans <= fs_info->last_trans_committed &&
             (!old_dir || old_dir->logged_trans <= fs_info->last_trans_committed))
-                return 0;
+                return sync_log ? BTRFS_DONT_NEED_TRANS_COMMIT :
+                        BTRFS_DONT_NEED_LOG_SYNC;
+
+        if (sync_log) {
+                struct btrfs_log_ctx ctx2;
+
+                btrfs_init_log_ctx(&ctx2, &inode->vfs_inode);
+                ret = btrfs_log_inode_parent(trans, inode, parent, 0, LLONG_MAX,
+                                             LOG_INODE_EXISTS, &ctx2);
+                if (ret == BTRFS_NO_LOG_SYNC)
+                        return BTRFS_DONT_NEED_TRANS_COMMIT;
+                else if (ret)
+                        return BTRFS_NEED_TRANS_COMMIT;
+
+                ret = btrfs_sync_log(trans, inode->root, &ctx2);
+                if (ret)
+                        return BTRFS_NEED_TRANS_COMMIT;
+                return BTRFS_DONT_NEED_TRANS_COMMIT;
+        }
+
+        ASSERT(ctx);
+        ret = btrfs_log_inode_parent(trans, inode, parent, 0, LLONG_MAX,
+                                     LOG_INODE_EXISTS, ctx);
+        if (ret == BTRFS_NO_LOG_SYNC)
+                return BTRFS_DONT_NEED_LOG_SYNC;
+        else if (ret)
+                return BTRFS_NEED_TRANS_COMMIT;
 
-        return btrfs_log_inode_parent(trans, inode, parent, 0, LLONG_MAX,
-                                      LOG_INODE_EXISTS, NULL);
+        return BTRFS_NEED_LOG_SYNC;
 }
 
diff --git a/fs/btrfs/tree-log.h b/fs/btrfs/tree-log.h
index 122e68b89a5a..7ab9bb88a639 100644
--- a/fs/btrfs/tree-log.h
+++ b/fs/btrfs/tree-log.h
@@ -71,8 +71,16 @@ void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
                              int for_rename);
 void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans,
                                    struct btrfs_inode *dir);
+/* Return values for btrfs_log_new_name() */
+enum {
+        BTRFS_DONT_NEED_TRANS_COMMIT,
+        BTRFS_NEED_TRANS_COMMIT,
+        BTRFS_DONT_NEED_LOG_SYNC,
+        BTRFS_NEED_LOG_SYNC,
+};
 int btrfs_log_new_name(struct btrfs_trans_handle *trans,
                         struct btrfs_inode *inode, struct btrfs_inode *old_dir,
-                        struct dentry *parent);
+                        struct dentry *parent,
+                        bool sync_log, struct btrfs_log_ctx *ctx);
 
 #endif
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index da86706123ff..f4405e430da6 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4491,7 +4491,12 @@ again:
 
         /* Now btrfs_update_device() will change the on-disk size. */
         ret = btrfs_update_device(trans, device);
-        btrfs_end_transaction(trans);
+        if (ret < 0) {
+                btrfs_abort_transaction(trans, ret);
+                btrfs_end_transaction(trans);
+        } else {
+                ret = btrfs_commit_transaction(trans);
+        }
 done:
         btrfs_free_path(path);
         if (ret) {
diff --git a/fs/buffer.c b/fs/buffer.c
index 4cc679d5bf58..6f1ae3ac9789 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -39,7 +39,6 @@
 #include <linux/buffer_head.h>
 #include <linux/task_io_accounting_ops.h>
 #include <linux/bio.h>
-#include <linux/notifier.h>
 #include <linux/cpu.h>
 #include <linux/bitops.h>
 #include <linux/mpage.h>
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 43ca3b763875..eab1359d0553 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -602,6 +602,8 @@ static int extra_mon_dispatch(struct ceph_client *client, struct ceph_msg *msg)
 
 /*
  * create a new fs client
+ *
+ * Success or not, this function consumes @fsopt and @opt.
  */
 static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt,
                                         struct ceph_options *opt)
@@ -609,17 +611,20 @@ static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt,
         struct ceph_fs_client *fsc;
         int page_count;
         size_t size;
-        int err = -ENOMEM;
+        int err;
 
         fsc = kzalloc(sizeof(*fsc), GFP_KERNEL);
-        if (!fsc)
-                return ERR_PTR(-ENOMEM);
+        if (!fsc) {
+                err = -ENOMEM;
+                goto fail;
+        }
 
         fsc->client = ceph_create_client(opt, fsc);
         if (IS_ERR(fsc->client)) {
                 err = PTR_ERR(fsc->client);
                 goto fail;
         }
+        opt = NULL; /* fsc->client now owns this */
 
         fsc->client->extra_mon_dispatch = extra_mon_dispatch;
         fsc->client->osdc.abort_on_full = true;
@@ -677,6 +682,9 @@ fail_client:
         ceph_destroy_client(fsc->client);
 fail:
         kfree(fsc);
+        if (opt)
+                ceph_destroy_options(opt);
+        destroy_mount_options(fsopt);
         return ERR_PTR(err);
 }
 
@@ -1042,8 +1050,6 @@ static struct dentry *ceph_mount(struct file_system_type *fs_type,
         fsc = create_fs_client(fsopt, opt);
         if (IS_ERR(fsc)) {
                 res = ERR_CAST(fsc);
-                destroy_mount_options(fsopt);
-                ceph_destroy_options(opt);
                 goto out_final;
         }
 
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index b380e0871372..a2b2355e7f01 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -105,9 +105,6 @@ convert_sfm_char(const __u16 src_char, char *target)
         case SFM_LESSTHAN:
                 *target = '<';
                 break;
-        case SFM_SLASH:
-                *target = '\\';
-                break;
         case SFM_SPACE:
                 *target = ' ';
                 break;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index c832a8a1970a..7aa08dba4719 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2547,7 +2547,7 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb_vol *volume_info)
         if (tcon == NULL)
                 return -ENOMEM;
 
-        snprintf(unc, sizeof(unc), "\\\\%s\\IPC$", ses->serverName);
+        snprintf(unc, sizeof(unc), "\\\\%s\\IPC$", ses->server->hostname);
 
         /* cannot fail */
         nls_codepage = load_nls_default();
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index d32eaa4b2437..6e8765f44508 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -467,6 +467,8 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path,
         oparms.cifs_sb = cifs_sb;
         oparms.desired_access = GENERIC_READ;
         oparms.create_options = CREATE_NOT_DIR;
+        if (backup_cred(cifs_sb))
+                oparms.create_options |= CREATE_OPEN_BACKUP_INTENT;
         oparms.disposition = FILE_OPEN;
         oparms.path = path;
         oparms.fid = &fid;
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index db0453660ff6..6a9c47541c53 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -248,16 +248,20 @@ smb2_check_message(char *buf, unsigned int len, struct TCP_Server_Info *srvr)
                  * MacOS server pads after SMB2.1 write response with 3 bytes
                  * of junk. Other servers match RFC1001 len to actual
                  * SMB2/SMB3 frame length (header + smb2 response specific data)
-                 * Some windows servers do too when compounding is used.
-                 * Log the server error (once), but allow it and continue
+                 * Some windows servers also pad up to 8 bytes when compounding.
+                 * If pad is longer than eight bytes, log the server behavior
+                 * (once), since may indicate a problem but allow it and continue
                  * since the frame is parseable.
                  */
                 if (clc_len < len) {
-                        printk_once(KERN_WARNING
-                                "SMB2 server sent bad RFC1001 len %d not %d\n",
-                                len, clc_len);
+                        pr_warn_once(
+                             "srv rsp padded more than expected. Length %d not %d for cmd:%d mid:%llu\n",
+                             len, clc_len, command, mid);
                         return 0;
                 }
+                pr_warn_once(
+                        "srv rsp too short, len %d not %d. cmd:%d mid:%llu\n",
+                        len, clc_len, command, mid);
 
                 return 1;
         }
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 247a98e6c856..d954ce36b473 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -630,7 +630,10 @@ smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
         oparms.tcon = tcon;
         oparms.desired_access = FILE_READ_ATTRIBUTES;
         oparms.disposition = FILE_OPEN;
-        oparms.create_options = 0;
+        if (backup_cred(cifs_sb))
+                oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
+        else
+                oparms.create_options = 0;
         oparms.fid = &fid;
         oparms.reconnect = false;
 
@@ -779,7 +782,10 @@ smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,
         oparms.tcon = tcon;
         oparms.desired_access = FILE_READ_EA;
         oparms.disposition = FILE_OPEN;
-        oparms.create_options = 0;
+        if (backup_cred(cifs_sb))
+                oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
+        else
+                oparms.create_options = 0;
         oparms.fid = &fid;
         oparms.reconnect = false;
 
@@ -858,7 +864,10 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
         oparms.tcon = tcon;
         oparms.desired_access = FILE_WRITE_EA;
         oparms.disposition = FILE_OPEN;
-        oparms.create_options = 0;
+        if (backup_cred(cifs_sb))
+                oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
+        else
+                oparms.create_options = 0;
         oparms.fid = &fid;
         oparms.reconnect = false;
 
@@ -1453,7 +1462,10 @@ smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
         oparms.tcon = tcon;
         oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA;
         oparms.disposition = FILE_OPEN;
-        oparms.create_options = 0;
+        if (backup_cred(cifs_sb))
+                oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
+        else
+                oparms.create_options = 0;
         oparms.fid = fid;
         oparms.reconnect = false;
 
@@ -1857,7 +1869,10 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
         oparms.tcon = tcon;
         oparms.desired_access = FILE_READ_ATTRIBUTES;
         oparms.disposition = FILE_OPEN;
-        oparms.create_options = 0;
+        if (backup_cred(cifs_sb))
+                oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
+        else
+                oparms.create_options = 0;
         oparms.fid = &fid;
         oparms.reconnect = false;
 
@@ -3639,7 +3654,7 @@ struct smb_version_values smb21_values = {
 struct smb_version_values smb3any_values = {
         .version_string = SMB3ANY_VERSION_STRING,
         .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */
-        .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
+        .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING,
         .large_lock_type = 0,
         .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
         .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
@@ -3660,7 +3675,7 @@ struct smb_version_values smb3any_values = {
 struct smb_version_values smbdefault_values = {
         .version_string = SMBDEFAULT_VERSION_STRING,
         .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */
-        .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
+        .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING,
         .large_lock_type = 0,
         .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
         .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
@@ -3681,7 +3696,7 @@ struct smb_version_values smbdefault_values = {
 struct smb_version_values smb30_values = {
         .version_string = SMB30_VERSION_STRING,
         .protocol_id = SMB30_PROT_ID,
-        .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
+        .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING,
         .large_lock_type = 0,
         .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
         .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
@@ -3702,7 +3717,7 @@ struct smb_version_values smb30_values = {
 struct smb_version_values smb302_values = {
         .version_string = SMB302_VERSION_STRING,
         .protocol_id = SMB302_PROT_ID,
-        .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
+        .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING,
         .large_lock_type = 0,
         .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
         .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
@@ -3723,7 +3738,7 @@ struct smb_version_values smb302_values = {
 struct smb_version_values smb311_values = {
         .version_string = SMB311_VERSION_STRING,
         .protocol_id = SMB311_PROT_ID,
-        .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
+        .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING,
         .large_lock_type = 0,
         .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
         .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 5740aa809be6..c08acfc77abc 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2178,6 +2178,9 @@ SMB2_open_init(struct cifs_tcon *tcon, struct smb_rqst *rqst, __u8 *oplock,
         if (!(server->capabilities & SMB2_GLOBAL_CAP_LEASING) ||
             *oplock == SMB2_OPLOCK_LEVEL_NONE)
                 req->RequestedOplockLevel = *oplock;
+        else if (!(server->capabilities & SMB2_GLOBAL_CAP_DIRECTORY_LEASING) &&
+                  (oparms->create_options & CREATE_NOT_FILE))
+                req->RequestedOplockLevel = *oplock; /* no srv lease support */
         else {
                 rc = add_lease_context(server, iov, &n_iov,
                                        oparms->fid->lease_key, oplock);
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index ec3fba7d492f..488a9e7f8f66 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -24,6 +24,7 @@
 #include <linux/mpage.h>
 #include <linux/user_namespace.h>
 #include <linux/seq_file.h>
+#include <linux/blkdev.h>
 
 #include "isofs.h"
 #include "zisofs.h"
@@ -653,6 +654,12 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
         /*
          * What if bugger tells us to go beyond page size?
          */
+        if (bdev_logical_block_size(s->s_bdev) > 2048) {
+                printk(KERN_WARNING
+                       "ISOFS: unsupported/invalid hardware sector size %d\n",
+                        bdev_logical_block_size(s->s_bdev));
+                goto out_freesbi;
+        }
         opt.blocksize = sb_min_blocksize(s, opt.blocksize);
 
         sbi->s_high_sierra = 0; /* default is iso9660 */
diff --git a/fs/nilfs2/alloc.c b/fs/nilfs2/alloc.c
index 03b8ba933eb2..235b959fc2b3 100644
--- a/fs/nilfs2/alloc.c
+++ b/fs/nilfs2/alloc.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * alloc.c - NILFS dat/inode allocator
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Originally written by Koji Sato.
  * Two allocators were unified by Ryusuke Konishi and Amagai Yoshiji.
  */
diff --git a/fs/nilfs2/alloc.h b/fs/nilfs2/alloc.h
index 05149e606a78..0303c3968cee 100644
--- a/fs/nilfs2/alloc.h
+++ b/fs/nilfs2/alloc.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * alloc.h - persistent object (dat entry/disk inode) allocator/deallocator
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Originally written by Koji Sato.
  * Two allocators were unified by Ryusuke Konishi and Amagai Yoshiji.
  */
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c
index 01fb1831ca25..fb5a9a8a13cf 100644
--- a/fs/nilfs2/bmap.c
+++ b/fs/nilfs2/bmap.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bmap.c - NILFS block mapping.
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/bmap.h b/fs/nilfs2/bmap.h
index 2b6ffbe5997a..2c63858e81c9 100644
--- a/fs/nilfs2/bmap.h
+++ b/fs/nilfs2/bmap.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * bmap.h - NILFS block mapping.
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index dec98cab729d..ebb24a314f43 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * btnode.c - NILFS B-tree node cache
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Originally written by Seiji Kihara.
  * Fully revised by Ryusuke Konishi for stabilization and simplification.
  *
diff --git a/fs/nilfs2/btnode.h b/fs/nilfs2/btnode.h
index 4e8aaa1aeb65..0f88dbc9bcb3 100644
--- a/fs/nilfs2/btnode.h
+++ b/fs/nilfs2/btnode.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * btnode.h - NILFS B-tree node cache
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Seiji Kihara.
  * Revised by Ryusuke Konishi.
  */
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index 16a7a67a11c9..23e043eca237 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * btree.c - NILFS B-tree.
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/btree.h b/fs/nilfs2/btree.h
index 2184e47fa4bf..d1421b646ce4 100644
--- a/fs/nilfs2/btree.h
+++ b/fs/nilfs2/btree.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * btree.h - NILFS B-tree.
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c
index a15a1601e931..8d41311b5db4 100644
--- a/fs/nilfs2/cpfile.c
+++ b/fs/nilfs2/cpfile.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * cpfile.c - NILFS checkpoint file.
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/cpfile.h b/fs/nilfs2/cpfile.h
index 6eca972f9673..6336222df24a 100644
--- a/fs/nilfs2/cpfile.h
+++ b/fs/nilfs2/cpfile.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * cpfile.h - NILFS checkpoint file.
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c
index dffedb2f8817..6f4066636be9 100644
--- a/fs/nilfs2/dat.c
+++ b/fs/nilfs2/dat.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * dat.c - NILFS disk address translation.
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/dat.h b/fs/nilfs2/dat.h
index 57dc6cf466d0..b17ee34580ae 100644
--- a/fs/nilfs2/dat.h
+++ b/fs/nilfs2/dat.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * dat.h - NILFS disk address translation.
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index 582831ab3eb9..81394e22d0a0 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * dir.c - NILFS directory entry operations
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Modified for NILFS by Amagai Yoshiji.
  */
 /*
diff --git a/fs/nilfs2/direct.c b/fs/nilfs2/direct.c
index 96e3ed0d9652..533e24ea3a88 100644
--- a/fs/nilfs2/direct.c
+++ b/fs/nilfs2/direct.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * direct.c - NILFS direct block pointer.
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/direct.h b/fs/nilfs2/direct.h
index cfe85e848bba..ec9a23c77994 100644
--- a/fs/nilfs2/direct.h
+++ b/fs/nilfs2/direct.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * direct.h - NILFS direct block pointer.
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c
index 7da0fac71dc2..64bc81363c6c 100644
--- a/fs/nilfs2/file.c
+++ b/fs/nilfs2/file.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * file.c - NILFS regular file handling primitives including fsync().
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Amagai Yoshiji and Ryusuke Konishi.
  */
 
diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index 853a831dcde0..aa3c328ee189 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * gcinode.c - dummy inodes to buffer blocks for garbage collection
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Seiji Kihara, Amagai Yoshiji, and Ryusuke Konishi.
  * Revised by Ryusuke Konishi.
  *
diff --git a/fs/nilfs2/ifile.c b/fs/nilfs2/ifile.c
index b8fa45c20c63..4140d232cadc 100644
--- a/fs/nilfs2/ifile.c
+++ b/fs/nilfs2/ifile.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * ifile.c - NILFS inode file
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Amagai Yoshiji.
  * Revised by Ryusuke Konishi.
  *
diff --git a/fs/nilfs2/ifile.h b/fs/nilfs2/ifile.h
index 188b94fe0ec5..a1e1e5711a05 100644
--- a/fs/nilfs2/ifile.h
+++ b/fs/nilfs2/ifile.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * ifile.h - NILFS inode file
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Amagai Yoshiji.
  * Revised by Ryusuke Konishi.
  *
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 6a612d832e7d..671085512e0f 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * inode.c - NILFS inode operations.
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  *
  */
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 1d2c3d7711fe..9b96d79eea6c 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * ioctl.c - NILFS ioctl operations.
  *
  * Copyright (C) 2007, 2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index c6bc1033e7d2..700870a92bc4 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * mdt.c - meta data file for NILFS
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  */
 
diff --git a/fs/nilfs2/mdt.h b/fs/nilfs2/mdt.h
index 3f67f3932097..e77aea4bb921 100644
--- a/fs/nilfs2/mdt.h
+++ b/fs/nilfs2/mdt.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * mdt.h - NILFS meta data file prototype and definitions
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  */
 
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c
index dd52d3f82e8d..9fe6d4ab74f0 100644
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * namei.c - NILFS pathname lookup operations.
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Modified for NILFS by Amagai Yoshiji and Ryusuke Konishi.
  */
 /*
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 33f8c8fc96e8..a2f247b6a209 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * nilfs.h - NILFS local header file.
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato and Ryusuke Konishi.
  */
 
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 4cb850a6f1c2..329a056b73b1 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * page.c - buffer/page management specific to NILFS
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi and Seiji Kihara.
  */
 
diff --git a/fs/nilfs2/page.h b/fs/nilfs2/page.h
index f3687c958fa8..62b9bb469e92 100644
--- a/fs/nilfs2/page.h
+++ b/fs/nilfs2/page.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * page.h - buffer/page management specific to NILFS
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi and Seiji Kihara.
  */
 
diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
index 5139efed1888..140b663e91c7 100644
--- a/fs/nilfs2/recovery.c
+++ b/fs/nilfs2/recovery.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * recovery.c - NILFS recovery logic
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  */
 
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index 68cb9e4740b4..20c479b5e41b 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * segbuf.c - NILFS segment buffer
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  *
  */
diff --git a/fs/nilfs2/segbuf.h b/fs/nilfs2/segbuf.h
index 10e16935fff6..9bea1bd59041 100644
--- a/fs/nilfs2/segbuf.h
+++ b/fs/nilfs2/segbuf.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * segbuf.h - NILFS Segment buffer prototypes and definitions
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  *
  */
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 0953635e7d48..445eef41bfaf 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * segment.c - NILFS segment constructor.
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  *
  */
diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h
index 04634e3e3d58..f5cf5308f3fc 100644
--- a/fs/nilfs2/segment.h
+++ b/fs/nilfs2/segment.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * segment.h - NILFS Segment constructor prototypes and definitions
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  *
  */
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c
index c7fa139d50e8..bf3f8f05c89b 100644
--- a/fs/nilfs2/sufile.c
+++ b/fs/nilfs2/sufile.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * sufile.c - NILFS segment usage file.
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  * Revised by Ryusuke Konishi.
  */
diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h
index 673a891350f4..c4e2c7a7add1 100644
--- a/fs/nilfs2/sufile.h
+++ b/fs/nilfs2/sufile.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * sufile.h - NILFS segment usage file.
  *
  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Koji Sato.
  */
 
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 1b9067cf4511..26290aa1023f 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * super.c - NILFS module and super block management.
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  */
 /*
diff --git a/fs/nilfs2/sysfs.c b/fs/nilfs2/sysfs.c
index 4b25837e7724..e60be7bb55b0 100644
--- a/fs/nilfs2/sysfs.c
+++ b/fs/nilfs2/sysfs.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * sysfs.c - sysfs support implementation.
  *
  * Copyright (C) 2005-2014 Nippon Telegraph and Telephone Corporation.
  * Copyright (C) 2014 HGST, Inc., a Western Digital Company.
  *
- * 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.
- *
  * Written by Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com>
  */
 
diff --git a/fs/nilfs2/sysfs.h b/fs/nilfs2/sysfs.h
index 648cedf9c06e..d001eb862dae 100644
--- a/fs/nilfs2/sysfs.h
+++ b/fs/nilfs2/sysfs.h
@@ -1,19 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * sysfs.h - sysfs support declarations.
  *
  * Copyright (C) 2005-2014 Nippon Telegraph and Telephone Corporation.
  * Copyright (C) 2014 HGST, Inc., a Western Digital Company.
  *
- * 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.
- *
  * Written by Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com>
  */
 
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 1a85317e83f0..484785cdf96e 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * the_nilfs.c - the_nilfs shared structure.
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  *
  */
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index 36da1779f976..380a543c5b19 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -1,18 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * the_nilfs.h - the_nilfs shared structure.
  *
  * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
  *
- * 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.
- *
  * Written by Ryusuke Konishi.
  *
  */
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index f174397b63a0..ababdbfab537 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -351,16 +351,9 @@ int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
 
         iter_info.srcu_idx = srcu_read_lock(&fsnotify_mark_srcu);
 
-        if ((mask & FS_MODIFY) ||
-            (test_mask & to_tell->i_fsnotify_mask)) {
-                iter_info.marks[FSNOTIFY_OBJ_TYPE_INODE] =
-                        fsnotify_first_mark(&to_tell->i_fsnotify_marks);
-        }
-
-        if (mnt && ((mask & FS_MODIFY) ||
-                    (test_mask & mnt->mnt_fsnotify_mask))) {
-                iter_info.marks[FSNOTIFY_OBJ_TYPE_INODE] =
-                        fsnotify_first_mark(&to_tell->i_fsnotify_marks);
+        iter_info.marks[FSNOTIFY_OBJ_TYPE_INODE] =
+                fsnotify_first_mark(&to_tell->i_fsnotify_marks);
+        if (mnt) {
                 iter_info.marks[FSNOTIFY_OBJ_TYPE_VFSMOUNT] =
                         fsnotify_first_mark(&mnt->mnt_fsnotify_marks);
         }
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index 05506d60131c..59cdb27826de 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -132,13 +132,13 @@ static void __fsnotify_recalc_mask(struct fsnotify_mark_connector *conn)
         struct fsnotify_mark *mark;
 
         assert_spin_locked(&conn->lock);
+        /* We can get detached connector here when inode is getting unlinked. */
+        if (!fsnotify_valid_obj_type(conn->type))
+                return;
         hlist_for_each_entry(mark, &conn->list, obj_list) {
                 if (mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED)
                         new_mask |= mark->mask;
         }
-        if (WARN_ON(!fsnotify_valid_obj_type(conn->type)))
-                return;
-
         *fsnotify_conn_mask_p(conn) = new_mask;
 }
 
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 860bfbe7a07a..f0cbf58ad4da 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -18,6 +18,7 @@
 #include <linux/quotaops.h>
 #include <linux/types.h>
 #include <linux/writeback.h>
+#include <linux/nospec.h>
 
 static int check_quotactl_permission(struct super_block *sb, int type, int cmd,
                                      qid_t id)
@@ -120,8 +121,6 @@ static int quota_getinfo(struct super_block *sb, int type, void __user *addr)
         struct if_dqinfo uinfo;
         int ret;
 
-        /* This checks whether qc_state has enough entries... */
-        BUILD_BUG_ON(MAXQUOTAS > XQM_MAXQUOTAS);
         if (!sb->s_qcop->get_state)
                 return -ENOSYS;
         ret = sb->s_qcop->get_state(sb, &state);
@@ -354,10 +353,10 @@ static int quota_getstate(struct super_block *sb, struct fs_quota_stat *fqs)
          * GETXSTATE quotactl has space for just one set of time limits so
          * report them for the first enabled quota type
          */
-        for (type = 0; type < XQM_MAXQUOTAS; type++)
+        for (type = 0; type < MAXQUOTAS; type++)
                 if (state.s_state[type].flags & QCI_ACCT_ENABLED)
                         break;
-        BUG_ON(type == XQM_MAXQUOTAS);
+        BUG_ON(type == MAXQUOTAS);
         fqs->qs_btimelimit = state.s_state[type].spc_timelimit;
         fqs->qs_itimelimit = state.s_state[type].ino_timelimit;
         fqs->qs_rtbtimelimit = state.s_state[type].rt_spc_timelimit;
@@ -427,10 +426,10 @@ static int quota_getstatev(struct super_block *sb, struct fs_quota_statv *fqs)
          * GETXSTATV quotactl has space for just one set of time limits so
          * report them for the first enabled quota type
          */
-        for (type = 0; type < XQM_MAXQUOTAS; type++)
+        for (type = 0; type < MAXQUOTAS; type++)
                 if (state.s_state[type].flags & QCI_ACCT_ENABLED)
                         break;
-        BUG_ON(type == XQM_MAXQUOTAS);
+        BUG_ON(type == MAXQUOTAS);
         fqs->qs_btimelimit = state.s_state[type].spc_timelimit;
         fqs->qs_itimelimit = state.s_state[type].ino_timelimit;
         fqs->qs_rtbtimelimit = state.s_state[type].rt_spc_timelimit;
@@ -701,8 +700,9 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
 {
         int ret;
 
-        if (type >= (XQM_COMMAND(cmd) ? XQM_MAXQUOTAS : MAXQUOTAS))
+        if (type >= MAXQUOTAS)
                 return -EINVAL;
+        type = array_index_nospec(type, MAXQUOTAS);
         /*
          * Quota not supported on this fs? Check this before s_quota_types
          * since they needn't be set if quota is not supported at all.
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 3040dc2a32f6..6f515651a2c2 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -764,9 +764,7 @@ static int udf_find_fileset(struct super_block *sb,
                             struct kernel_lb_addr *root)
 {
         struct buffer_head *bh = NULL;
-        long lastblock;
         uint16_t ident;
-        struct udf_sb_info *sbi;
 
         if (fileset->logicalBlockNum != 0xFFFFFFFF ||
             fileset->partitionReferenceNum != 0xFFFF) {
@@ -779,69 +777,11 @@ static int udf_find_fileset(struct super_block *sb,
                         return 1;
                 }
 
-        }
-
-        sbi = UDF_SB(sb);
-        if (!bh) {
-                /* Search backwards through the partitions */
-                struct kernel_lb_addr newfileset;
-
-/* --> cvg: FIXME - is it reasonable? */
-                return 1;
-
-                for (newfileset.partitionReferenceNum = sbi->s_partitions - 1;
-                     (newfileset.partitionReferenceNum != 0xFFFF &&
-                      fileset->logicalBlockNum == 0xFFFFFFFF &&
-                      fileset->partitionReferenceNum == 0xFFFF);
-                     newfileset.partitionReferenceNum--) {
-                        lastblock = sbi->s_partmaps
-                                        [newfileset.partitionReferenceNum]
-                                                .s_partition_len;
-                        newfileset.logicalBlockNum = 0;
-
-                        do {
-                                bh = udf_read_ptagged(sb, &newfileset, 0,
-                                                      &ident);
-                                if (!bh) {
-                                        newfileset.logicalBlockNum++;
-                                        continue;
-                                }
-
-                                switch (ident) {
-                                case TAG_IDENT_SBD:
-                                {
-                                        struct spaceBitmapDesc *sp;
-                                        sp = (struct spaceBitmapDesc *)
-                                                                bh->b_data;
-                                        newfileset.logicalBlockNum += 1 +
-                                                ((le32_to_cpu(sp->numOfBytes) +
-                                                  sizeof(struct spaceBitmapDesc)
-                                                  - 1) >> sb->s_blocksize_bits);
-                                        brelse(bh);
-                                        break;
-                                }
-                                case TAG_IDENT_FSD:
-                                        *fileset = newfileset;
-                                        break;
-                                default:
-                                        newfileset.logicalBlockNum++;
-                                        brelse(bh);
-                                        bh = NULL;
-                                        break;
-                                }
-                        } while (newfileset.logicalBlockNum < lastblock &&
-                                 fileset->logicalBlockNum == 0xFFFFFFFF &&
-                                 fileset->partitionReferenceNum == 0xFFFF);
-                }
-        }
-
-        if ((fileset->logicalBlockNum != 0xFFFFFFFF ||
-             fileset->partitionReferenceNum != 0xFFFF) && bh) {
                 udf_debug("Fileset at block=%u, partition=%u\n",
                           fileset->logicalBlockNum,
                           fileset->partitionReferenceNum);
 
-                sbi->s_partition = fileset->partitionReferenceNum;
+                UDF_SB(sb)->s_partition = fileset->partitionReferenceNum;
                 udf_load_fileset(sb, bh, root);
                 brelse(bh);
                 return 0;
@@ -1570,10 +1510,16 @@ static void udf_load_logicalvolint(struct super_block *sb, struct kernel_extent_
  */
 #define PART_DESC_ALLOC_STEP 32
 
+struct part_desc_seq_scan_data {
+        struct udf_vds_record rec;
+        u32 partnum;
+};
+
 struct desc_seq_scan_data {
         struct udf_vds_record vds[VDS_POS_LENGTH];
         unsigned int size_part_descs;
-        struct udf_vds_record *part_descs_loc;
+        unsigned int num_part_descs;
+        struct part_desc_seq_scan_data *part_descs_loc;
 };
 
 static struct udf_vds_record *handle_partition_descriptor(
@@ -1582,10 +1528,14 @@ static struct udf_vds_record *handle_partition_descriptor(
 {
         struct partitionDesc *desc = (struct partitionDesc *)bh->b_data;
         int partnum;
+        int i;
 
         partnum = le16_to_cpu(desc->partitionNumber);
-        if (partnum >= data->size_part_descs) {
-                struct udf_vds_record *new_loc;
+        for (i = 0; i < data->num_part_descs; i++)
+                if (partnum == data->part_descs_loc[i].partnum)
+                        return &(data->part_descs_loc[i].rec);
+        if (data->num_part_descs >= data->size_part_descs) {
+                struct part_desc_seq_scan_data *new_loc;
                 unsigned int new_size = ALIGN(partnum, PART_DESC_ALLOC_STEP);
 
                 new_loc = kcalloc(new_size, sizeof(*new_loc), GFP_KERNEL);
@@ -1597,7 +1547,7 @@ static struct udf_vds_record *handle_partition_descriptor(
                 data->part_descs_loc = new_loc;
                 data->size_part_descs = new_size;
         }
-        return &(data->part_descs_loc[partnum]);
+        return &(data->part_descs_loc[data->num_part_descs++].rec);
 }
 
 
@@ -1647,6 +1597,7 @@ static noinline int udf_process_sequence(
 
         memset(data.vds, 0, sizeof(struct udf_vds_record) * VDS_POS_LENGTH);
         data.size_part_descs = PART_DESC_ALLOC_STEP;
+        data.num_part_descs = 0;
         data.part_descs_loc = kcalloc(data.size_part_descs,
                                       sizeof(*data.part_descs_loc),
                                       GFP_KERNEL);
@@ -1658,7 +1609,6 @@ static noinline int udf_process_sequence(
          * are in it.
          */
         for (; (!done && block <= lastblock); block++) {
-
                 bh = udf_read_tagged(sb, block, block, &ident);
                 if (!bh)
                         break;
@@ -1730,13 +1680,10 @@ static noinline int udf_process_sequence(
         }
 
         /* Now handle prevailing Partition Descriptors */
-        for (i = 0; i < data.size_part_descs; i++) {
-                if (data.part_descs_loc[i].block) {
-                        ret = udf_load_partdesc(sb,
-                                                data.part_descs_loc[i].block);
-                        if (ret < 0)
-                                return ret;
-                }
+        for (i = 0; i < data.num_part_descs; i++) {
+                ret = udf_load_partdesc(sb, data.part_descs_loc[i].rec.block);
+                if (ret < 0)
+                        return ret;
         }
 
         return 0;
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index ca1d2cc2cdfa..18863d56273c 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -199,47 +199,57 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
 
 #define __declare_arg_0(a0, res)                                        \
         struct arm_smccc_res   *___res = res;                           \
-        register u32           r0 asm("r0") = a0;                       \
+        register unsigned long r0 asm("r0") = (u32)a0;                  \
         register unsigned long r1 asm("r1");                            \
         register unsigned long r2 asm("r2");                            \
         register unsigned long r3 asm("r3")
 
 #define __declare_arg_1(a0, a1, res)                                    \
+        typeof(a1) __a1 = a1;                                           \
         struct arm_smccc_res   *___res = res;                           \
-        register u32           r0 asm("r0") = a0;                       \
-        register typeof(a1)    r1 asm("r1") = a1;                       \
+        register unsigned long r0 asm("r0") = (u32)a0;                  \
+        register unsigned long r1 asm("r1") = __a1;                     \
         register unsigned long r2 asm("r2");                            \
         register unsigned long r3 asm("r3")
 
 #define __declare_arg_2(a0, a1, a2, res)                                \
+        typeof(a1) __a1 = a1;                                           \
+        typeof(a2) __a2 = a2;                                           \
         struct arm_smccc_res   *___res = res;                           \
-        register u32           r0 asm("r0") = a0;                       \
-        register typeof(a1)    r1 asm("r1") = a1;                       \
-        register typeof(a2)    r2 asm("r2") = a2;                       \
+        register unsigned long r0 asm("r0") = (u32)a0;                  \
+        register unsigned long r1 asm("r1") = __a1;                     \
+        register unsigned long r2 asm("r2") = __a2;                     \
         register unsigned long r3 asm("r3")
 
 #define __declare_arg_3(a0, a1, a2, a3, res)                            \
+        typeof(a1) __a1 = a1;                                           \
+        typeof(a2) __a2 = a2;                                           \
+        typeof(a3) __a3 = a3;                                           \
         struct arm_smccc_res   *___res = res;                           \
-        register u32           r0 asm("r0") = a0;                       \
-        register typeof(a1)    r1 asm("r1") = a1;                       \
-        register typeof(a2)    r2 asm("r2") = a2;                       \
-        register typeof(a3)    r3 asm("r3") = a3
+        register unsigned long r0 asm("r0") = (u32)a0;                  \
+        register unsigned long r1 asm("r1") = __a1;                     \
+        register unsigned long r2 asm("r2") = __a2;                     \
+        register unsigned long r3 asm("r3") = __a3
 
 #define __declare_arg_4(a0, a1, a2, a3, a4, res)                        \
+        typeof(a4) __a4 = a4;                                           \
         __declare_arg_3(a0, a1, a2, a3, res);                           \
-        register typeof(a4) r4 asm("r4") = a4
+        register unsigned long r4 asm("r4") = __a4
 
 #define __declare_arg_5(a0, a1, a2, a3, a4, a5, res)                    \
+        typeof(a5) __a5 = a5;                                           \
         __declare_arg_4(a0, a1, a2, a3, a4, res);                       \
-        register typeof(a5) r5 asm("r5") = a5
+        register unsigned long r5 asm("r5") = __a5
 
 #define __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res)                \
+        typeof(a6) __a6 = a6;                                           \
         __declare_arg_5(a0, a1, a2, a3, a4, a5, res);                   \
-        register typeof(a6) r6 asm("r6") = a6
+        register unsigned long r6 asm("r6") = __a6
 
 #define __declare_arg_7(a0, a1, a2, a3, a4, a5, a6, a7, res)            \
+        typeof(a7) __a7 = a7;                                           \
         __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res);               \
-        register typeof(a7) r7 asm("r7") = a7
+        register unsigned long r7 asm("r7") = __a7
 
 #define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__)
 #define __declare_args(count, ...)  ___declare_args(count, __VA_ARGS__)
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 34aec30e06c7..6d766a19f2bb 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -56,6 +56,7 @@ struct blkcg {
         struct list_head                all_blkcgs_node;
 #ifdef CONFIG_CGROUP_WRITEBACK
         struct list_head                cgwb_list;
+        refcount_t                      cgwb_refcnt;
 #endif
 };
 
@@ -89,7 +90,6 @@ struct blkg_policy_data {
         /* the blkg and policy id this per-policy data belongs to */
         struct blkcg_gq                 *blkg;
         int                             plid;
-        bool                            offline;
 };
 
 /*
@@ -387,6 +387,49 @@ static inline struct blkcg *cpd_to_blkcg(struct blkcg_policy_data *cpd)
         return cpd ? cpd->blkcg : NULL;
 }
 
+extern void blkcg_destroy_blkgs(struct blkcg *blkcg);
+
+#ifdef CONFIG_CGROUP_WRITEBACK
+
+/**
+ * blkcg_cgwb_get - get a reference for blkcg->cgwb_list
+ * @blkcg: blkcg of interest
+ *
+ * This is used to track the number of active wb's related to a blkcg.
+ */
+static inline void blkcg_cgwb_get(struct blkcg *blkcg)
+{
+        refcount_inc(&blkcg->cgwb_refcnt);
+}
+
+/**
+ * blkcg_cgwb_put - put a reference for @blkcg->cgwb_list
+ * @blkcg: blkcg of interest
+ *
+ * This is used to track the number of active wb's related to a blkcg.
+ * When this count goes to zero, all active wb has finished so the
+ * blkcg can continue destruction by calling blkcg_destroy_blkgs().
+ * This work may occur in cgwb_release_workfn() on the cgwb_release
+ * workqueue.
+ */
+static inline void blkcg_cgwb_put(struct blkcg *blkcg)
+{
+        if (refcount_dec_and_test(&blkcg->cgwb_refcnt))
+                blkcg_destroy_blkgs(blkcg);
+}
+
+#else
+
+static inline void blkcg_cgwb_get(struct blkcg *blkcg) { }
+
+static inline void blkcg_cgwb_put(struct blkcg *blkcg)
+{
+        /* wb isn't being accounted, so trigger destruction right away */
+        blkcg_destroy_blkgs(blkcg);
+}
+
+#endif
+
 /**
  * blkg_path - format cgroup path of blkg
  * @blkg: blkg of interest
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index b79387fd57da..65b4eaed1d96 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -855,7 +855,7 @@ static inline u8 i2c_8bit_addr_from_msg(const struct i2c_msg *msg)
 }
 
 u8 *i2c_get_dma_safe_msg_buf(struct i2c_msg *msg, unsigned int threshold);
-void i2c_release_dma_safe_msg_buf(struct i2c_msg *msg, u8 *buf);
+void i2c_put_dma_safe_msg_buf(u8 *buf, struct i2c_msg *msg, bool xferred);
 
 int i2c_handle_smbus_host_notify(struct i2c_adapter *adap, unsigned short addr);
 /**
diff --git a/include/linux/of.h b/include/linux/of.h
index 4d25e4f952d9..99b0ebf49632 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -256,6 +256,9 @@ static inline unsigned long of_read_ulong(const __be32 *cell, int size)
 #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
 #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
 
+extern bool of_node_name_eq(const struct device_node *np, const char *name);
+extern bool of_node_name_prefix(const struct device_node *np, const char *prefix);
+
 static inline const char *of_node_full_name(const struct device_node *np)
 {
         return np ? np->full_name : "<no-node>";
@@ -290,6 +293,8 @@ extern struct device_node *of_get_next_child(const struct device_node *node,
 extern struct device_node *of_get_next_available_child(
         const struct device_node *node, struct device_node *prev);
 
+extern struct device_node *of_get_compatible_child(const struct device_node *parent,
+                                        const char *compatible);
 extern struct device_node *of_get_child_by_name(const struct device_node *node,
                                         const char *name);
 
@@ -561,6 +566,16 @@ static inline struct device_node *to_of_node(const struct fwnode_handle *fwnode)
         return NULL;
 }
 
+static inline bool of_node_name_eq(const struct device_node *np, const char *name)
+{
+        return false;
+}
+
+static inline bool of_node_name_prefix(const struct device_node *np, const char *prefix)
+{
+        return false;
+}
+
 static inline const char* of_node_full_name(const struct device_node *np)
 {
         return "<no-node>";
@@ -632,6 +647,12 @@ static inline bool of_have_populated_dt(void)
         return false;
 }
 
+static inline struct device_node *of_get_compatible_child(const struct device_node *parent,
+                                        const char *compatible)
+{
+        return NULL;
+}
+
 static inline struct device_node *of_get_child_by_name(
                                         const struct device_node *node,
                                         const char *name)
@@ -967,6 +988,18 @@ static inline struct device_node *of_find_matching_node(
         return of_find_matching_node_and_match(from, matches, NULL);
 }
 
+static inline const char *of_node_get_device_type(const struct device_node *np)
+{
+        return of_get_property(np, "type", NULL);
+}
+
+static inline bool of_node_is_type(const struct device_node *np, const char *type)
+{
+        const char *match = of_node_get_device_type(np);
+
+        return np && match && type && !strcmp(match, type);
+}
+
 /**
  * of_property_count_u8_elems - Count the number of u8 elements in a property
  *
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 99d366cb0e9f..d157983b84cf 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -3084,4 +3084,6 @@
 
 #define PCI_VENDOR_ID_OCZ               0x1b85
 
+#define PCI_VENDOR_ID_NCUBE             0x10ff
+
 #endif /* _LINUX_PCI_IDS_H */
diff --git a/include/linux/platform_data/ina2xx.h b/include/linux/platform_data/ina2xx.h
index 9abc0ca7259b..9f0aa1b48c78 100644
--- a/include/linux/platform_data/ina2xx.h
+++ b/include/linux/platform_data/ina2xx.h
@@ -1,7 +1,7 @@
 /*
  * Driver for Texas Instruments INA219, INA226 power monitor chips
  *
- * Copyright (C) 2012 Lothar Felten <l-felten@ti.com>
+ * Copyright (C) 2012 Lothar Felten <lothar.felten@gmail.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
diff --git a/include/linux/quota.h b/include/linux/quota.h
index ca9772c8e48b..f32dd270b8e3 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -408,13 +408,7 @@ struct qc_type_state {
 
 struct qc_state {
         unsigned int s_incoredqs;       /* Number of dquots in core */
-        /*
-         * Per quota type information. The array should really have
-         * max(MAXQUOTAS, XQM_MAXQUOTAS) entries. BUILD_BUG_ON in
-         * quota_getinfo() makes sure XQM_MAXQUOTAS is large enough.  Once VFS
-         * supports project quotas, this can be changed to MAXQUOTAS
-         */
-        struct qc_type_state s_state[XQM_MAXQUOTAS];
+        struct qc_type_state s_state[MAXQUOTAS];  /* Per quota type information */
 };
 
 /* Structure for communicating via ->set_info */
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 5d738804e3d6..a5a3cfc3c2fa 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -258,8 +258,8 @@ extern void ktime_get_snapshot(struct system_time_snapshot *systime_snapshot);
 extern int persistent_clock_is_local;
 
 extern void read_persistent_clock64(struct timespec64 *ts);
-void read_persistent_clock_and_boot_offset(struct timespec64 *wall_clock,
-                                           struct timespec64 *boot_offset);
+void read_persistent_wall_and_boot_offset(struct timespec64 *wall_clock,
+                                          struct timespec64 *boot_offset);
 extern int update_persistent_clock64(struct timespec64 now);
 
 /*
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 7f2e16e76ac4..041f7e56a289 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -158,8 +158,10 @@ extern void syscall_unregfunc(void);
                  * For rcuidle callers, use srcu since sched-rcu        \
                  * doesn't work from the idle path.                     \
                  */                                                     \
-                if (rcuidle)                                            \
+                if (rcuidle) {                                          \
                         idx = srcu_read_lock_notrace(&tracepoint_srcu); \
+                        rcu_irq_enter_irqson();                         \
+                }                                                       \
                                                                         \
                 it_func_ptr = rcu_dereference_raw((tp)->funcs);         \
                                                                         \
@@ -171,8 +173,10 @@ extern void syscall_unregfunc(void);
                         } while ((++it_func_ptr)->func);                \
                 }                                                       \
                                                                         \
-                if (rcuidle)                                            \
+                if (rcuidle) {                                          \
+                        rcu_irq_exit_irqson();                          \
                         srcu_read_unlock_notrace(&tracepoint_srcu, idx);\
+                }                                                       \
                                                                         \
                 preempt_enable_notrace();                               \
         } while (0)
diff --git a/include/net/act_api.h b/include/net/act_api.h
index 1ad5b19e83a9..970303448c90 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -23,13 +23,11 @@ struct tc_action {
         const struct tc_action_ops      *ops;
         __u32                           type; /* for backward compat(TCA_OLD_COMPAT) */
         __u32                           order;
-        struct list_head                list;
         struct tcf_idrinfo              *idrinfo;
 
         u32                             tcfa_index;
         refcount_t                      tcfa_refcnt;
         atomic_t                        tcfa_bindcnt;
-        u32                             tcfa_capab;
         int                             tcfa_action;
         struct tcf_t                    tcfa_tm;
         struct gnet_stats_basic_packed  tcfa_bstats;
@@ -44,7 +42,6 @@ struct tc_action {
 #define tcf_index       common.tcfa_index
 #define tcf_refcnt      common.tcfa_refcnt
 #define tcf_bindcnt     common.tcfa_bindcnt
-#define tcf_capab       common.tcfa_capab
 #define tcf_action      common.tcfa_action
 #define tcf_tm          common.tcfa_tm
 #define tcf_bstats      common.tcfa_bstats
@@ -102,7 +99,6 @@ struct tc_action_ops {
         size_t  (*get_fill_size)(const struct tc_action *act);
         struct net_device *(*get_dev)(const struct tc_action *a);
         void    (*put_dev)(struct net_device *dev);
-        int     (*delete)(struct net *net, u32 index);
 };
 
 struct tc_action_net {
@@ -148,8 +144,6 @@ int tcf_generic_walker(struct tc_action_net *tn, struct sk_buff *skb,
                        const struct tc_action_ops *ops,
                        struct netlink_ext_ack *extack);
 int tcf_idr_search(struct tc_action_net *tn, struct tc_action **a, u32 index);
-bool tcf_idr_check(struct tc_action_net *tn, u32 index, struct tc_action **a,
-                    int bind);
 int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est,
                    struct tc_action **a, const struct tc_action_ops *ops,
                    int bind, bool cpustats);
@@ -158,7 +152,6 @@ void tcf_idr_insert(struct tc_action_net *tn, struct tc_action *a);
 void tcf_idr_cleanup(struct tc_action_net *tn, u32 index);
 int tcf_idr_check_alloc(struct tc_action_net *tn, u32 *index,
                         struct tc_action **a, int bind);
-int tcf_idr_delete_index(struct tc_action_net *tn, u32 index);
 int __tcf_idr_release(struct tc_action *a, bool bind, bool strict);
 
 static inline int tcf_idr_release(struct tc_action *a, bool bind)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 9a850973e09a..8ebabc9873d1 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4865,8 +4865,8 @@ const char *reg_initiator_name(enum nl80211_reg_initiator initiator);
  *
  * Return: 0 on success. -ENODATA.
  */
-int reg_query_regdb_wmm(char *alpha2, int freq, u32 *ptr,
-                        struct ieee80211_wmm_rule *rule);
+int reg_query_regdb_wmm(char *alpha2, int freq,
+                        struct ieee80211_reg_rule *rule);
 
 /*
  * callbacks for asynchronous cfg80211 methods, notification
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index ef727f71336e..75a3f3fdb359 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -298,19 +298,13 @@ static inline void tcf_exts_put_net(struct tcf_exts *exts)
 #endif
 }
 
-static inline void tcf_exts_to_list(const struct tcf_exts *exts,
-                                    struct list_head *actions)
-{
 #ifdef CONFIG_NET_CLS_ACT
-        int i;
-
-        for (i = 0; i < exts->nr_actions; i++) {
-                struct tc_action *a = exts->actions[i];
-
-                list_add_tail(&a->list, actions);
-        }
+#define tcf_exts_for_each_action(i, a, exts) \
+        for (i = 0; i < TCA_ACT_MAX_PRIO && ((a) = (exts)->actions[i]); i++)
+#else
+#define tcf_exts_for_each_action(i, a, exts) \
+        for (; 0; (void)(i), (void)(a), (void)(exts))
 #endif
-}
 
 static inline void
 tcf_exts_stats_update(const struct tcf_exts *exts,
@@ -361,6 +355,15 @@ static inline bool tcf_exts_has_one_action(struct tcf_exts *exts)
 #endif
 }
 
+static inline struct tc_action *tcf_exts_first_action(struct tcf_exts *exts)
+{
+#ifdef CONFIG_NET_CLS_ACT
+        return exts->actions[0];
+#else
+        return NULL;
+#endif
+}
+
 /**
  * tcf_exts_exec - execute tc filter extensions
  * @skb: socket buffer
diff --git a/include/net/regulatory.h b/include/net/regulatory.h
index 60f8cc86a447..3469750df0f4 100644
--- a/include/net/regulatory.h
+++ b/include/net/regulatory.h
@@ -217,15 +217,15 @@ struct ieee80211_wmm_rule {
 struct ieee80211_reg_rule {
         struct ieee80211_freq_range freq_range;
         struct ieee80211_power_rule power_rule;
-        struct ieee80211_wmm_rule *wmm_rule;
+        struct ieee80211_wmm_rule wmm_rule;
         u32 flags;
         u32 dfs_cac_ms;
+        bool has_wmm;
 };
 
 struct ieee80211_regdomain {
         struct rcu_head rcu_head;
         u32 n_reg_rules;
-        u32 n_wmm_rules;
         char alpha2[3];
         enum nl80211_dfs_regions dfs_region;
         struct ieee80211_reg_rule reg_rules[];
diff --git a/include/uapi/linux/keyctl.h b/include/uapi/linux/keyctl.h
index 7b8c9e19bad1..910cc4334b21 100644
--- a/include/uapi/linux/keyctl.h
+++ b/include/uapi/linux/keyctl.h
@@ -65,7 +65,7 @@
 
 /* keyctl structures */
 struct keyctl_dh_params {
-        __s32 private;
+        __s32 dh_private;
         __s32 prime;
         __s32 base;
 };
diff --git a/include/uapi/linux/rds.h b/include/uapi/linux/rds.h
index dc520e1a4123..8b73cb603c5f 100644
--- a/include/uapi/linux/rds.h
+++ b/include/uapi/linux/rds.h
@@ -37,6 +37,7 @@
 
 #include <linux/types.h>
 #include <linux/socket.h>               /* For __kernel_sockaddr_storage. */
+#include <linux/in6.h>                  /* For struct in6_addr. */
 
 #define RDS_IB_ABI_VERSION              0x301
 
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
index b1e22c40c4b6..84c3de89696a 100644
--- a/include/uapi/linux/vhost.h
+++ b/include/uapi/linux/vhost.h
@@ -176,7 +176,7 @@ struct vhost_memory {
 #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1
 
 #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64)
-#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64)
+#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64)
 
 /* VHOST_NET specific defines */
 
diff --git a/ipc/shm.c b/ipc/shm.c
index b0eb3757ab89..4cd402e4cfeb 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -199,6 +199,7 @@ static inline struct shmid_kernel *shm_lock(struct ipc_namespace *ns, int id)
         }
 
         ipc_unlock_object(ipcp);
+        ipcp = ERR_PTR(-EIDRM);
 err:
         rcu_read_unlock();
         /*
diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c
index 04b8eda94e7d..03cc59ee9c95 100644
--- a/kernel/bpf/hashtab.c
+++ b/kernel/bpf/hashtab.c
@@ -15,6 +15,7 @@
 #include <linux/jhash.h>
 #include <linux/filter.h>
 #include <linux/rculist_nulls.h>
+#include <linux/random.h>
 #include <uapi/linux/btf.h>
 #include "percpu_freelist.h"
 #include "bpf_lru_list.h"
@@ -41,6 +42,7 @@ struct bpf_htab {
         atomic_t count; /* number of elements in this hashtable */
         u32 n_buckets;  /* number of hash buckets */
         u32 elem_size;  /* size of each element in bytes */
+        u32 hashrnd;
 };
 
 /* each htab element is struct htab_elem + key + value */
@@ -371,6 +373,7 @@ static struct bpf_map *htab_map_alloc(union bpf_attr *attr)
         if (!htab->buckets)
                 goto free_htab;
 
+        htab->hashrnd = get_random_int();
         for (i = 0; i < htab->n_buckets; i++) {
                 INIT_HLIST_NULLS_HEAD(&htab->buckets[i].head, i);
                 raw_spin_lock_init(&htab->buckets[i].lock);
@@ -402,9 +405,9 @@ free_htab:
         return ERR_PTR(err);
 }
 
-static inline u32 htab_map_hash(const void *key, u32 key_len)
+static inline u32 htab_map_hash(const void *key, u32 key_len, u32 hashrnd)
 {
-        return jhash(key, key_len, 0);
+        return jhash(key, key_len, hashrnd);
 }
 
 static inline struct bucket *__select_bucket(struct bpf_htab *htab, u32 hash)
@@ -470,7 +473,7 @@ static void *__htab_map_lookup_elem(struct bpf_map *map, void *key)
 
         key_size = map->key_size;
 
-        hash = htab_map_hash(key, key_size);
+        hash = htab_map_hash(key, key_size, htab->hashrnd);
 
         head = select_bucket(htab, hash);
 
@@ -597,7 +600,7 @@ static int htab_map_get_next_key(struct bpf_map *map, void *key, void *next_key)
         if (!key)
                 goto find_first_elem;
 
-        hash = htab_map_hash(key, key_size);
+        hash = htab_map_hash(key, key_size, htab->hashrnd);
 
         head = select_bucket(htab, hash);
 
@@ -824,7 +827,7 @@ static int htab_map_update_elem(struct bpf_map *map, void *key, void *value,
 
         key_size = map->key_size;
 
-        hash = htab_map_hash(key, key_size);
+        hash = htab_map_hash(key, key_size, htab->hashrnd);
 
         b = __select_bucket(htab, hash);
         head = &b->head;
@@ -880,7 +883,7 @@ static int htab_lru_map_update_elem(struct bpf_map *map, void *key, void *value,
 
         key_size = map->key_size;
 
-        hash = htab_map_hash(key, key_size);
+        hash = htab_map_hash(key, key_size, htab->hashrnd);
 
         b = __select_bucket(htab, hash);
         head = &b->head;
@@ -945,7 +948,7 @@ static int __htab_percpu_map_update_elem(struct bpf_map *map, void *key,
 
         key_size = map->key_size;
 
-        hash = htab_map_hash(key, key_size);
+        hash = htab_map_hash(key, key_size, htab->hashrnd);
 
         b = __select_bucket(htab, hash);
         head = &b->head;
@@ -998,7 +1001,7 @@ static int __htab_lru_percpu_map_update_elem(struct bpf_map *map, void *key,
 
         key_size = map->key_size;
 
-        hash = htab_map_hash(key, key_size);
+        hash = htab_map_hash(key, key_size, htab->hashrnd);
 
         b = __select_bucket(htab, hash);
         head = &b->head;
@@ -1071,7 +1074,7 @@ static int htab_map_delete_elem(struct bpf_map *map, void *key)
 
         key_size = map->key_size;
 
-        hash = htab_map_hash(key, key_size);
+        hash = htab_map_hash(key, key_size, htab->hashrnd);
         b = __select_bucket(htab, hash);
         head = &b->head;
 
@@ -1103,7 +1106,7 @@ static int htab_lru_map_delete_elem(struct bpf_map *map, void *key)
 
         key_size = map->key_size;
 
-        hash = htab_map_hash(key, key_size);
+        hash = htab_map_hash(key, key_size, htab->hashrnd);
         b = __select_bucket(htab, hash);
         head = &b->head;
 
diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c
index 98e621a29e8e..488ef9663c01 100644
--- a/kernel/bpf/sockmap.c
+++ b/kernel/bpf/sockmap.c
@@ -236,7 +236,7 @@ static int bpf_tcp_init(struct sock *sk)
 }
 
 static void smap_release_sock(struct smap_psock *psock, struct sock *sock);
-static int free_start_sg(struct sock *sk, struct sk_msg_buff *md);
+static int free_start_sg(struct sock *sk, struct sk_msg_buff *md, bool charge);
 
 static void bpf_tcp_release(struct sock *sk)
 {
@@ -248,7 +248,7 @@ static void bpf_tcp_release(struct sock *sk)
                 goto out;
 
         if (psock->cork) {
-                free_start_sg(psock->sock, psock->cork);
+                free_start_sg(psock->sock, psock->cork, true);
                 kfree(psock->cork);
                 psock->cork = NULL;
         }
@@ -330,14 +330,14 @@ static void bpf_tcp_close(struct sock *sk, long timeout)
         close_fun = psock->save_close;
 
         if (psock->cork) {
-                free_start_sg(psock->sock, psock->cork);
+                free_start_sg(psock->sock, psock->cork, true);
                 kfree(psock->cork);
                 psock->cork = NULL;
         }
 
         list_for_each_entry_safe(md, mtmp, &psock->ingress, list) {
                 list_del(&md->list);
-                free_start_sg(psock->sock, md);
+                free_start_sg(psock->sock, md, true);
                 kfree(md);
         }
 
@@ -369,7 +369,7 @@ static void bpf_tcp_close(struct sock *sk, long timeout)
                         /* If another thread deleted this object skip deletion.
                          * The refcnt on psock may or may not be zero.
                          */
-                        if (l) {
+                        if (l && l == link) {
                                 hlist_del_rcu(&link->hash_node);
                                 smap_release_sock(psock, link->sk);
                                 free_htab_elem(htab, link);
@@ -570,14 +570,16 @@ static void free_bytes_sg(struct sock *sk, int bytes,
         md->sg_start = i;
 }
 
-static int free_sg(struct sock *sk, int start, struct sk_msg_buff *md)
+static int free_sg(struct sock *sk, int start,
+                   struct sk_msg_buff *md, bool charge)
 {
         struct scatterlist *sg = md->sg_data;
         int i = start, free = 0;
 
         while (sg[i].length) {
                 free += sg[i].length;
-                sk_mem_uncharge(sk, sg[i].length);
+                if (charge)
+                        sk_mem_uncharge(sk, sg[i].length);
                 if (!md->skb)
                         put_page(sg_page(&sg[i]));
                 sg[i].length = 0;
@@ -594,9 +596,9 @@ static int free_sg(struct sock *sk, int start, struct sk_msg_buff *md)
         return free;
 }
 
-static int free_start_sg(struct sock *sk, struct sk_msg_buff *md)
+static int free_start_sg(struct sock *sk, struct sk_msg_buff *md, bool charge)
 {
-        int free = free_sg(sk, md->sg_start, md);
+        int free = free_sg(sk, md->sg_start, md, charge);
 
         md->sg_start = md->sg_end;
         return free;
@@ -604,7 +606,7 @@ static int free_start_sg(struct sock *sk, struct sk_msg_buff *md)
 
 static int free_curr_sg(struct sock *sk, struct sk_msg_buff *md)
 {
-        return free_sg(sk, md->sg_curr, md);
+        return free_sg(sk, md->sg_curr, md, true);
 }
 
 static int bpf_map_msg_verdict(int _rc, struct sk_msg_buff *md)
@@ -718,7 +720,7 @@ static int bpf_tcp_ingress(struct sock *sk, int apply_bytes,
                 list_add_tail(&r->list, &psock->ingress);
                 sk->sk_data_ready(sk);
         } else {
-                free_start_sg(sk, r);
+                free_start_sg(sk, r, true);
                 kfree(r);
         }
 
@@ -752,14 +754,10 @@ static int bpf_tcp_sendmsg_do_redirect(struct sock *sk, int send,
                 release_sock(sk);
         }
         smap_release_sock(psock, sk);
-        if (unlikely(err))
-                goto out;
-        return 0;
+        return err;
 out_rcu:
         rcu_read_unlock();
-out:
-        free_bytes_sg(NULL, send, md, false);
-        return err;
+        return 0;
 }
 
 static inline void bpf_md_init(struct smap_psock *psock)
@@ -822,7 +820,7 @@ more_data:
         case __SK_PASS:
                 err = bpf_tcp_push(sk, send, m, flags, true);
                 if (unlikely(err)) {
-                        *copied -= free_start_sg(sk, m);
+                        *copied -= free_start_sg(sk, m, true);
                         break;
                 }
 
@@ -845,16 +843,17 @@ more_data:
                 lock_sock(sk);
 
                 if (unlikely(err < 0)) {
-                        free_start_sg(sk, m);
+                        int free = free_start_sg(sk, m, false);
+
                         psock->sg_size = 0;
                         if (!cork)
-                                *copied -= send;
+                                *copied -= free;
                 } else {
                         psock->sg_size -= send;
                 }
 
                 if (cork) {
-                        free_start_sg(sk, m);
+                        free_start_sg(sk, m, true);
                         psock->sg_size = 0;
                         kfree(m);
                         m = NULL;
@@ -912,6 +911,8 @@ static int bpf_tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 
         if (unlikely(flags & MSG_ERRQUEUE))
                 return inet_recv_error(sk, msg, len, addr_len);
+        if (!skb_queue_empty(&sk->sk_receive_queue))
+                return tcp_recvmsg(sk, msg, len, nonblock, flags, addr_len);
 
         rcu_read_lock();
         psock = smap_psock_sk(sk);
@@ -922,9 +923,6 @@ static int bpf_tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
                 goto out;
         rcu_read_unlock();
 
-        if (!skb_queue_empty(&sk->sk_receive_queue))
-                return tcp_recvmsg(sk, msg, len, nonblock, flags, addr_len);
-
         lock_sock(sk);
 bytes_ready:
         while (copied != len) {
@@ -1122,7 +1120,7 @@ wait_for_memory:
                 err = sk_stream_wait_memory(sk, &timeo);
                 if (err) {
                         if (m && m != psock->cork)
-                                free_start_sg(sk, m);
+                                free_start_sg(sk, m, true);
                         goto out_err;
                 }
         }
@@ -1427,12 +1425,15 @@ out:
 static void smap_write_space(struct sock *sk)
 {
         struct smap_psock *psock;
+        void (*write_space)(struct sock *sk);
 
         rcu_read_lock();
         psock = smap_psock_sk(sk);
         if (likely(psock && test_bit(SMAP_TX_RUNNING, &psock->state)))
                 schedule_work(&psock->tx_work);
+        write_space = psock->save_write_space;
         rcu_read_unlock();
+        write_space(sk);
 }
 
 static void smap_stop_sock(struct smap_psock *psock, struct sock *sk)
@@ -1461,10 +1462,16 @@ static void smap_destroy_psock(struct rcu_head *rcu)
         schedule_work(&psock->gc_work);
 }
 
+static bool psock_is_smap_sk(struct sock *sk)
+{
+        return inet_csk(sk)->icsk_ulp_ops == &bpf_tcp_ulp_ops;
+}
+
 static void smap_release_sock(struct smap_psock *psock, struct sock *sock)
 {
         if (refcount_dec_and_test(&psock->refcnt)) {
-                tcp_cleanup_ulp(sock);
+                if (psock_is_smap_sk(sock))
+                        tcp_cleanup_ulp(sock);
                 write_lock_bh(&sock->sk_callback_lock);
                 smap_stop_sock(psock, sock);
                 write_unlock_bh(&sock->sk_callback_lock);
@@ -1578,13 +1585,13 @@ static void smap_gc_work(struct work_struct *w)
                 bpf_prog_put(psock->bpf_tx_msg);
 
         if (psock->cork) {
-                free_start_sg(psock->sock, psock->cork);
+                free_start_sg(psock->sock, psock->cork, true);
                 kfree(psock->cork);
         }
 
         list_for_each_entry_safe(md, mtmp, &psock->ingress, list) {
                 list_del(&md->list);
-                free_start_sg(psock->sock, md);
+                free_start_sg(psock->sock, md, true);
                 kfree(md);
         }
 
@@ -1891,6 +1898,10 @@ static int __sock_map_ctx_update_elem(struct bpf_map *map,
          * doesn't update user data.
          */
         if (psock) {
+                if (!psock_is_smap_sk(sock)) {
+                        err = -EBUSY;
+                        goto out_progs;
+                }
                 if (READ_ONCE(psock->bpf_parse) && parse) {
                         err = -EBUSY;
                         goto out_progs;
@@ -2140,7 +2151,9 @@ static struct bpf_map *sock_hash_alloc(union bpf_attr *attr)
                 return ERR_PTR(-EPERM);
 
         /* check sanity of attributes */
-        if (attr->max_entries == 0 || attr->value_size != 4 ||
+        if (attr->max_entries == 0 ||
+            attr->key_size == 0 ||
+            attr->value_size != 4 ||
             attr->map_flags & ~SOCK_CREATE_FLAG_MASK)
                 return ERR_PTR(-EINVAL);
 
@@ -2267,8 +2280,10 @@ static struct htab_elem *alloc_sock_hash_elem(struct bpf_htab *htab,
         }
         l_new = kmalloc_node(htab->elem_size, GFP_ATOMIC | __GFP_NOWARN,
                              htab->map.numa_node);
-        if (!l_new)
+        if (!l_new) {
+                atomic_dec(&htab->count);
                 return ERR_PTR(-ENOMEM);
+        }
 
         memcpy(l_new->key, key, key_size);
         l_new->sk = sk;
diff --git a/kernel/cpu.c b/kernel/cpu.c
index ed44d7d34c2d..0097acec1c71 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -102,8 +102,6 @@ static inline void cpuhp_lock_release(bool bringup) { }
  * @name:       Name of the step
  * @startup:    Startup function of the step
  * @teardown:   Teardown function of the step
- * @skip_onerr: Do not invoke the functions on error rollback
- *              Will go away once the notifiers are gone
  * @cant_stop:  Bringup/teardown can't be stopped at this step
  */
 struct cpuhp_step {
@@ -119,7 +117,6 @@ struct cpuhp_step {
                                          struct hlist_node *node);
         } teardown;
         struct hlist_head       list;
-        bool                    skip_onerr;
         bool                    cant_stop;
         bool                    multi_instance;
 };
@@ -550,12 +547,8 @@ static int bringup_cpu(unsigned int cpu)
 
 static void undo_cpu_up(unsigned int cpu, struct cpuhp_cpu_state *st)
 {
-        for (st->state--; st->state > st->target; st->state--) {
-                struct cpuhp_step *step = cpuhp_get_step(st->state);
-
-                if (!step->skip_onerr)
-                        cpuhp_invoke_callback(cpu, st->state, false, NULL, NULL);
-        }
+        for (st->state--; st->state > st->target; st->state--)
+                cpuhp_invoke_callback(cpu, st->state, false, NULL, NULL);
 }
 
 static int cpuhp_up_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st,
@@ -614,15 +607,15 @@ static void cpuhp_thread_fun(unsigned int cpu)
         bool bringup = st->bringup;
         enum cpuhp_state state;
 
+        if (WARN_ON_ONCE(!st->should_run))
+                return;
+
         /*
          * ACQUIRE for the cpuhp_should_run() load of ->should_run. Ensures
          * that if we see ->should_run we also see the rest of the state.
          */
         smp_mb();
 
-        if (WARN_ON_ONCE(!st->should_run))
-                return;
-
         cpuhp_lock_acquire(bringup);
 
         if (st->single) {
@@ -644,12 +637,6 @@ static void cpuhp_thread_fun(unsigned int cpu)
 
         WARN_ON_ONCE(!cpuhp_is_ap_state(state));
 
-        if (st->rollback) {
-                struct cpuhp_step *step = cpuhp_get_step(state);
-                if (step->skip_onerr)
-                        goto next;
-        }
-
         if (cpuhp_is_atomic_state(state)) {
                 local_irq_disable();
                 st->result = cpuhp_invoke_callback(cpu, state, bringup, st->node, &st->last);
@@ -673,7 +660,6 @@ static void cpuhp_thread_fun(unsigned int cpu)
                 st->should_run = false;
         }
 
-next:
         cpuhp_lock_release(bringup);
 
         if (!st->should_run)
@@ -916,12 +902,8 @@ void cpuhp_report_idle_dead(void)
 
 static void undo_cpu_down(unsigned int cpu, struct cpuhp_cpu_state *st)
 {
-        for (st->state++; st->state < st->target; st->state++) {
-                struct cpuhp_step *step = cpuhp_get_step(st->state);
-
-                if (!step->skip_onerr)
-                        cpuhp_invoke_callback(cpu, st->state, true, NULL, NULL);
-        }
+        for (st->state++; st->state < st->target; st->state++)
+                cpuhp_invoke_callback(cpu, st->state, true, NULL, NULL);
 }
 
 static int cpuhp_down_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st,
@@ -934,7 +916,8 @@ static int cpuhp_down_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st,
                 ret = cpuhp_invoke_callback(cpu, st->state, false, NULL, NULL);
                 if (ret) {
                         st->target = prev_state;
-                        undo_cpu_down(cpu, st);
+                        if (st->state < prev_state)
+                                undo_cpu_down(cpu, st);
                         break;
                 }
         }
@@ -987,7 +970,7 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen,
          * to do the further cleanups.
          */
         ret = cpuhp_down_callbacks(cpu, st, target);
-        if (ret && st->state > CPUHP_TEARDOWN_CPU && st->state < prev_state) {
+        if (ret && st->state == CPUHP_TEARDOWN_CPU && st->state < prev_state) {
                 cpuhp_reset_state(st, prev_state);
                 __cpuhp_kick_ap(st);
         }
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c
index 1c35b7b945d0..de87b0282e74 100644
--- a/kernel/dma/direct.c
+++ b/kernel/dma/direct.c
@@ -168,7 +168,7 @@ int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
 int dma_direct_supported(struct device *dev, u64 mask)
 {
 #ifdef CONFIG_ZONE_DMA
-        if (mask < DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))
+        if (mask < phys_to_dma(dev, DMA_BIT_MASK(ARCH_ZONE_DMA_BITS)))
                 return 0;
 #else
         /*
@@ -177,7 +177,7 @@ int dma_direct_supported(struct device *dev, u64 mask)
          * memory, or by providing a ZONE_DMA32.  If neither is the case, the
          * architecture needs to use an IOMMU instead of the direct mapping.
          */
-        if (mask < DMA_BIT_MASK(32))
+        if (mask < phys_to_dma(dev, DMA_BIT_MASK(32)))
                 return 0;
 #endif
         /*
diff --git a/kernel/fork.c b/kernel/fork.c
index d896e9ca38b0..f0b58479534f 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -550,8 +550,7 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
                         goto out;
         }
         /* a new mm has just been created */
-        arch_dup_mmap(oldmm, mm);
-        retval = 0;
+        retval = arch_dup_mmap(oldmm, mm);
 out:
         up_write(&mm->mmap_sem);
         flush_tlb_mm(oldmm);
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 924e37fb1620..fd6f8ed28e01 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -38,7 +38,6 @@
 #include <linux/kmsg_dump.h>
 #include <linux/syslog.h>
 #include <linux/cpu.h>
-#include <linux/notifier.h>
 #include <linux/rculist.h>
 #include <linux/poll.h>
 #include <linux/irq_work.h>
diff --git a/kernel/printk/printk_safe.c b/kernel/printk/printk_safe.c
index a0a74c533e4b..0913b4d385de 100644
--- a/kernel/printk/printk_safe.c
+++ b/kernel/printk/printk_safe.c
@@ -306,12 +306,12 @@ static __printf(1, 0) int vprintk_nmi(const char *fmt, va_list args)
         return printk_safe_log_store(s, fmt, args);
 }
 
-void printk_nmi_enter(void)
+void notrace printk_nmi_enter(void)
 {
         this_cpu_or(printk_context, PRINTK_NMI_CONTEXT_MASK);
 }
 
-void printk_nmi_exit(void)
+void notrace printk_nmi_exit(void)
 {
         this_cpu_and(printk_context, ~PRINTK_NMI_CONTEXT_MASK);
 }
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index f74fb00d8064..0e6e97a01942 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -133,19 +133,40 @@ static void inline clocksource_watchdog_unlock(unsigned long *flags)
         spin_unlock_irqrestore(&watchdog_lock, *flags);
 }
 
+static int clocksource_watchdog_kthread(void *data);
+static void __clocksource_change_rating(struct clocksource *cs, int rating);
+
 /*
  * Interval: 0.5sec Threshold: 0.0625s
  */
 #define WATCHDOG_INTERVAL (HZ >> 1)
 #define WATCHDOG_THRESHOLD (NSEC_PER_SEC >> 4)
 
+static void clocksource_watchdog_work(struct work_struct *work)
+{
+        /*
+         * We cannot directly run clocksource_watchdog_kthread() here, because
+         * clocksource_select() calls timekeeping_notify() which uses
+         * stop_machine(). One cannot use stop_machine() from a workqueue() due
+         * lock inversions wrt CPU hotplug.
+         *
+         * Also, we only ever run this work once or twice during the lifetime
+         * of the kernel, so there is no point in creating a more permanent
+         * kthread for this.
+         *
+         * If kthread_run fails the next watchdog scan over the
+         * watchdog_list will find the unstable clock again.
+         */
+        kthread_run(clocksource_watchdog_kthread, NULL, "kwatchdog");
+}
+
 static void __clocksource_unstable(struct clocksource *cs)
 {
         cs->flags &= ~(CLOCK_SOURCE_VALID_FOR_HRES | CLOCK_SOURCE_WATCHDOG);
         cs->flags |= CLOCK_SOURCE_UNSTABLE;
 
         /*
-         * If the clocksource is registered clocksource_watchdog_work() will
+         * If the clocksource is registered clocksource_watchdog_kthread() will
          * re-rate and re-select.
          */
         if (list_empty(&cs->list)) {
@@ -156,7 +177,7 @@ static void __clocksource_unstable(struct clocksource *cs)
         if (cs->mark_unstable)
                 cs->mark_unstable(cs);
 
-        /* kick clocksource_watchdog_work() */
+        /* kick clocksource_watchdog_kthread() */
         if (finished_booting)
                 schedule_work(&watchdog_work);
 }
@@ -166,7 +187,7 @@ static void __clocksource_unstable(struct clocksource *cs)
  * @cs:         clocksource to be marked unstable
  *
  * This function is called by the x86 TSC code to mark clocksources as unstable;
- * it defers demotion and re-selection to a work.
+ * it defers demotion and re-selection to a kthread.
  */
 void clocksource_mark_unstable(struct clocksource *cs)
 {
@@ -391,9 +412,7 @@ static void clocksource_dequeue_watchdog(struct clocksource *cs)
         }
 }
 
-static void __clocksource_change_rating(struct clocksource *cs, int rating);
-
-static int __clocksource_watchdog_work(void)
+static int __clocksource_watchdog_kthread(void)
 {
         struct clocksource *cs, *tmp;
         unsigned long flags;
@@ -418,12 +437,13 @@ static int __clocksource_watchdog_work(void)
         return select;
 }
 
-static void clocksource_watchdog_work(struct work_struct *work)
+static int clocksource_watchdog_kthread(void *data)
 {
         mutex_lock(&clocksource_mutex);
-        if (__clocksource_watchdog_work())
+        if (__clocksource_watchdog_kthread())
                 clocksource_select();
         mutex_unlock(&clocksource_mutex);
+        return 0;
 }
 
 static bool clocksource_is_watchdog(struct clocksource *cs)
@@ -442,7 +462,7 @@ static void clocksource_enqueue_watchdog(struct clocksource *cs)
 static void clocksource_select_watchdog(bool fallback) { }
 static inline void clocksource_dequeue_watchdog(struct clocksource *cs) { }
 static inline void clocksource_resume_watchdog(void) { }
-static inline int __clocksource_watchdog_work(void) { return 0; }
+static inline int __clocksource_watchdog_kthread(void) { return 0; }
 static bool clocksource_is_watchdog(struct clocksource *cs) { return false; }
 void clocksource_mark_unstable(struct clocksource *cs) { }
 
@@ -810,7 +830,7 @@ static int __init clocksource_done_booting(void)
         /*
          * Run the watchdog first to eliminate unstable clock sources
          */
-        __clocksource_watchdog_work();
+        __clocksource_watchdog_kthread();
         clocksource_select();
         mutex_unlock(&clocksource_mutex);
         return 0;
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 5470dce212c0..977918d5d350 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -261,7 +261,7 @@ static void __touch_watchdog(void)
  * entering idle state.  This should only be used for scheduler events.
  * Use touch_softlockup_watchdog() for everything else.
  */
-void touch_softlockup_watchdog_sched(void)
+notrace void touch_softlockup_watchdog_sched(void)
 {
         /*
          * Preemption can be enabled.  It doesn't matter which CPU's timestamp
@@ -270,7 +270,7 @@ void touch_softlockup_watchdog_sched(void)
         raw_cpu_write(watchdog_touch_ts, 0);
 }
 
-void touch_softlockup_watchdog(void)
+notrace void touch_softlockup_watchdog(void)
 {
         touch_softlockup_watchdog_sched();
         wq_watchdog_touch(raw_smp_processor_id());
diff --git a/kernel/watchdog_hld.c b/kernel/watchdog_hld.c
index 1f7020d65d0a..71381168dede 100644
--- a/kernel/watchdog_hld.c
+++ b/kernel/watchdog_hld.c
@@ -29,7 +29,7 @@ static struct cpumask dead_events_mask;
 static unsigned long hardlockup_allcpu_dumped;
 static atomic_t watchdog_cpus = ATOMIC_INIT(0);
 
-void arch_touch_nmi_watchdog(void)
+notrace void arch_touch_nmi_watchdog(void)
 {
         /*
          * Using __raw here because some code paths have
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 60e80198c3df..0280deac392e 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -5574,7 +5574,7 @@ static void wq_watchdog_timer_fn(struct timer_list *unused)
         mod_timer(&wq_watchdog_timer, jiffies + thresh);
 }
 
-void wq_watchdog_touch(int cpu)
+notrace void wq_watchdog_touch(int cpu)
 {
         if (cpu >= 0)
                 per_cpu(wq_watchdog_touched_cpu, cpu) = jiffies;
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 613316724c6a..4966c4fbe7f7 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1277,13 +1277,13 @@ config WARN_ALL_UNSEEDED_RANDOM
           time.  This is really bad from a security perspective, and
           so architecture maintainers really need to do what they can
           to get the CRNG seeded sooner after the system is booted.
-          However, since users can not do anything actionble to
+          However, since users cannot do anything actionable to
           address this, by default the kernel will issue only a single
           warning for the first use of unseeded randomness.
 
           Say Y here if you want to receive warnings for all uses of
           unseeded randomness.  This will be of use primarily for
-          those developers interersted in improving the security of
+          those developers interested in improving the security of
           Linux kernels running on their architecture (or
           subarchitecture).
 
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index c72577e472f2..a66595ba5543 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -4,7 +4,6 @@
  */
 
 #include <linux/percpu_counter.h>
-#include <linux/notifier.h>
 #include <linux/mutex.h>
 #include <linux/init.h>
 #include <linux/cpu.h>
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index 310e29b51507..30526afa8343 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -28,7 +28,6 @@
 #include <linux/rhashtable.h>
 #include <linux/err.h>
 #include <linux/export.h>
-#include <linux/rhashtable.h>
 
 #define HASH_DEFAULT_SIZE       64UL
 #define HASH_MIN_SIZE           4U
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index f5981e9d6ae2..8a8bb8796c6c 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -491,6 +491,7 @@ static void cgwb_release_workfn(struct work_struct *work)
 {
         struct bdi_writeback *wb = container_of(work, struct bdi_writeback,
                                                 release_work);
+        struct blkcg *blkcg = css_to_blkcg(wb->blkcg_css);
 
         mutex_lock(&wb->bdi->cgwb_release_mutex);
         wb_shutdown(wb);
@@ -499,6 +500,9 @@ static void cgwb_release_workfn(struct work_struct *work)
         css_put(wb->blkcg_css);
         mutex_unlock(&wb->bdi->cgwb_release_mutex);
 
+        /* triggers blkg destruction if cgwb_refcnt becomes zero */
+        blkcg_cgwb_put(blkcg);
+
         fprop_local_destroy_percpu(&wb->memcg_completions);
         percpu_ref_exit(&wb->refcnt);
         wb_exit(wb);
@@ -597,6 +601,7 @@ static int cgwb_create(struct backing_dev_info *bdi,
                         list_add_tail_rcu(&wb->bdi_node, &bdi->wb_list);
                         list_add(&wb->memcg_node, memcg_cgwb_list);
                         list_add(&wb->blkcg_node, blkcg_cgwb_list);
+                        blkcg_cgwb_get(blkcg);
                         css_get(memcg_css);
                         css_get(blkcg_css);
                 }
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index c3bc7e9c9a2a..533f9b00147d 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -821,11 +821,11 @@ vm_fault_t vmf_insert_pfn_pud(struct vm_area_struct *vma, unsigned long addr,
          * but we need to be consistent with PTEs and architectures that
          * can't support a 'special' bit.
          */
-        BUG_ON(!(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP)));
+        BUG_ON(!(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP)) &&
+                        !pfn_t_devmap(pfn));
         BUG_ON((vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP)) ==
                                                 (VM_PFNMAP|VM_MIXEDMAP));
         BUG_ON((vma->vm_flags & VM_PFNMAP) && is_cow_mapping(vma->vm_flags));
-        BUG_ON(!pfn_t_devmap(pfn));
 
         if (addr < vma->vm_start || addr >= vma->vm_end)
                 return VM_FAULT_SIGBUS;
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 9a085d525bbc..17dd883198ae 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -2097,6 +2097,11 @@ static int __init kmemleak_late_init(void)
 
         kmemleak_initialized = 1;
 
+        dentry = debugfs_create_file("kmemleak", 0644, NULL, NULL,
+                                     &kmemleak_fops);
+        if (!dentry)
+                pr_warn("Failed to create the debugfs kmemleak file\n");
+
         if (kmemleak_error) {
                 /*
                  * Some error occurred and kmemleak was disabled. There is a
@@ -2108,10 +2113,6 @@ static int __init kmemleak_late_init(void)
                 return -ENOMEM;
         }
 
-        dentry = debugfs_create_file("kmemleak", 0644, NULL, NULL,
-                                     &kmemleak_fops);
-        if (!dentry)
-                pr_warn("Failed to create the debugfs kmemleak file\n");
         mutex_lock(&scan_mutex);
         start_scan_thread();
         mutex_unlock(&scan_mutex);
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 4ead5a4817de..e79cb59552d9 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1701,8 +1701,6 @@ static enum oom_status mem_cgroup_oom(struct mem_cgroup *memcg, gfp_t mask, int
         if (mem_cgroup_out_of_memory(memcg, mask, order))
                 return OOM_SUCCESS;
 
-        WARN(1,"Memory cgroup charge failed because of no reclaimable memory! "
-                "This looks like a misconfiguration or a kernel bug.");
         return OOM_FAILED;
 }
 
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 9eea6e809a4e..38d94b703e9d 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1333,7 +1333,8 @@ static unsigned long scan_movable_pages(unsigned long start, unsigned long end)
                         if (__PageMovable(page))
                                 return pfn;
                         if (PageHuge(page)) {
-                                if (page_huge_active(page))
+                                if (hugepage_migration_supported(page_hstate(page)) &&
+                                    page_huge_active(page))
                                         return pfn;
                                 else
                                         pfn = round_up(pfn + 1,
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index b5b25e4dcbbb..f10aa5360616 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -522,6 +522,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm)
 
                         tlb_gather_mmu(&tlb, mm, start, end);
                         if (mmu_notifier_invalidate_range_start_nonblock(mm, start, end)) {
+                                tlb_finish_mmu(&tlb, start, end);
                                 ret = false;
                                 continue;
                         }
@@ -1103,10 +1104,17 @@ bool out_of_memory(struct oom_control *oc)
         }
 
         select_bad_process(oc);
-        /* Found nothing?!?! Either we hang forever, or we panic. */
-        if (!oc->chosen && !is_sysrq_oom(oc) && !is_memcg_oom(oc)) {
+        /* Found nothing?!?! */
+        if (!oc->chosen) {
                 dump_header(oc, NULL);
-                panic("Out of memory and no killable processes...\n");
+                pr_warn("Out of memory and no killable processes...\n");
+                /*
+                 * If we got here due to an actual allocation at the
+                 * system level, we cannot survive this and will enter
+                 * an endless loop in the allocator. Bail out now.
+                 */
+                if (!is_sysrq_oom(oc) && !is_memcg_oom(oc))
+                        panic("System is deadlocked on memory\n");
         }
         if (oc->chosen && oc->chosen != (void *)-1UL)
                 oom_kill_process(oc, !is_memcg_oom(oc) ? "Out of memory" :
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 6551d3b0dc30..84ae9bf5858a 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -27,7 +27,6 @@
 #include <linux/mpage.h>
 #include <linux/rmap.h>
 #include <linux/percpu.h>
-#include <linux/notifier.h>
 #include <linux/smp.h>
 #include <linux/sysctl.h>
 #include <linux/cpu.h>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e75865d58ba7..89d2a2ab3fe6 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -32,7 +32,6 @@
 #include <linux/slab.h>
 #include <linux/ratelimit.h>
 #include <linux/oom.h>
-#include <linux/notifier.h>
 #include <linux/topology.h>
 #include <linux/sysctl.h>
 #include <linux/cpu.h>
@@ -7709,6 +7708,10 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count,
                  * handle each tail page individually in migration.
                  */
                 if (PageHuge(page)) {
+
+                        if (!hugepage_migration_supported(page_hstate(page)))
+                                goto unmovable;
+
                         iter = round_up(iter + 1, 1<<compound_order(page)) - 1;
                         continue;
                 }
diff --git a/mm/slub.c b/mm/slub.c
index ce2b9e5cea77..8da34a8af53d 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -19,7 +19,6 @@
 #include <linux/slab.h>
 #include "slab.h"
 #include <linux/proc_fs.h>
-#include <linux/notifier.h>
 #include <linux/seq_file.h>
 #include <linux/kasan.h>
 #include <linux/cpu.h>
diff --git a/mm/util.c b/mm/util.c
index d2890a407332..9e3ebd2ef65f 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -435,11 +435,14 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node)
 EXPORT_SYMBOL(kvmalloc_node);
 
 /**
- * kvfree - free memory allocated with kvmalloc
- * @addr: pointer returned by kvmalloc
+ * kvfree() - Free memory.
+ * @addr: Pointer to allocated memory.
  *
- * If the memory is allocated from vmalloc area it is freed with vfree().
- * Otherwise kfree() is used.
+ * kvfree frees memory allocated by any of vmalloc(), kmalloc() or kvmalloc().
+ * It is slightly more efficient to use kfree() or vfree() if you are certain
+ * that you know which one to use.
+ *
+ * Context: Any context except NMI.
  */
 void kvfree(const void *addr)
 {
diff --git a/net/core/dev.c b/net/core/dev.c
index 325fc5088370..82114e1111e6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -93,7 +93,6 @@
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
-#include <linux/notifier.h>
 #include <linux/skbuff.h>
 #include <linux/bpf.h>
 #include <linux/bpf_trace.h>
diff --git a/net/core/filter.c b/net/core/filter.c
index c25eb36f1320..aecdeba052d3 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2282,14 +2282,21 @@ static const struct bpf_func_proto bpf_msg_cork_bytes_proto = {
         .arg2_type      = ARG_ANYTHING,
 };
 
+#define sk_msg_iter_var(var)                    \
+        do {                                    \
+                var++;                          \
+                if (var == MAX_SKB_FRAGS)       \
+                        var = 0;                \
+        } while (0)
+
 BPF_CALL_4(bpf_msg_pull_data,
            struct sk_msg_buff *, msg, u32, start, u32, end, u64, flags)
 {
-        unsigned int len = 0, offset = 0, copy = 0;
+        unsigned int len = 0, offset = 0, copy = 0, poffset = 0;
+        int bytes = end - start, bytes_sg_total;
         struct scatterlist *sg = msg->sg_data;
         int first_sg, last_sg, i, shift;
         unsigned char *p, *to, *from;
-        int bytes = end - start;
         struct page *page;
 
         if (unlikely(flags || end <= start))
@@ -2299,21 +2306,22 @@ BPF_CALL_4(bpf_msg_pull_data,
         i = msg->sg_start;
         do {
                 len = sg[i].length;
-                offset += len;
                 if (start < offset + len)
                         break;
-                i++;
-                if (i == MAX_SKB_FRAGS)
-                        i = 0;
+                offset += len;
+                sk_msg_iter_var(i);
         } while (i != msg->sg_end);
 
         if (unlikely(start >= offset + len))
                 return -EINVAL;
 
-        if (!msg->sg_copy[i] && bytes <= len)
-                goto out;
-
         first_sg = i;
+        /* The start may point into the sg element so we need to also
+         * account for the headroom.
+         */
+        bytes_sg_total = start - offset + bytes;
+        if (!msg->sg_copy[i] && bytes_sg_total <= len)
+                goto out;
 
         /* At this point we need to linearize multiple scatterlist
          * elements or a single shared page. Either way we need to
@@ -2327,37 +2335,32 @@ BPF_CALL_4(bpf_msg_pull_data,
          */
         do {
                 copy += sg[i].length;
-                i++;
-                if (i == MAX_SKB_FRAGS)
-                        i = 0;
-                if (bytes < copy)
+                sk_msg_iter_var(i);
+                if (bytes_sg_total <= copy)
                         break;
         } while (i != msg->sg_end);
         last_sg = i;
 
-        if (unlikely(copy < end - start))
+        if (unlikely(bytes_sg_total > copy))
                 return -EINVAL;
 
         page = alloc_pages(__GFP_NOWARN | GFP_ATOMIC, get_order(copy));
         if (unlikely(!page))
                 return -ENOMEM;
         p = page_address(page);
-        offset = 0;
 
         i = first_sg;
         do {
                 from = sg_virt(&sg[i]);
                 len = sg[i].length;
-                to = p + offset;
+                to = p + poffset;
 
                 memcpy(to, from, len);
-                offset += len;
+                poffset += len;
                 sg[i].length = 0;
                 put_page(sg_page(&sg[i]));
 
-                i++;
-                if (i == MAX_SKB_FRAGS)
-                        i = 0;
+                sk_msg_iter_var(i);
         } while (i != last_sg);
 
         sg[first_sg].length = copy;
@@ -2367,11 +2370,15 @@ BPF_CALL_4(bpf_msg_pull_data,
          * had a single entry though we can just replace it and
          * be done. Otherwise walk the ring and shift the entries.
          */
-        shift = last_sg - first_sg - 1;
+        WARN_ON_ONCE(last_sg == first_sg);
+        shift = last_sg > first_sg ?
+                last_sg - first_sg - 1 :
+                MAX_SKB_FRAGS - first_sg + last_sg - 1;
         if (!shift)
                 goto out;
 
-        i = first_sg + 1;
+        i = first_sg;
+        sk_msg_iter_var(i);
         do {
                 int move_from;
 
@@ -2388,15 +2395,13 @@ BPF_CALL_4(bpf_msg_pull_data,
                 sg[move_from].page_link = 0;
                 sg[move_from].offset = 0;
 
-                i++;
-                if (i == MAX_SKB_FRAGS)
-                        i = 0;
+                sk_msg_iter_var(i);
         } while (1);
         msg->sg_end -= shift;
         if (msg->sg_end < 0)
                 msg->sg_end += MAX_SKB_FRAGS;
 out:
-        msg->data = sg_virt(&sg[i]) + start - offset;
+        msg->data = sg_virt(&sg[first_sg]) + start - offset;
         msg->data_end = msg->data + bytes;
 
         return 0;
@@ -7281,7 +7286,7 @@ static u32 sk_reuseport_convert_ctx_access(enum bpf_access_type type,
                 break;
 
         case offsetof(struct sk_reuseport_md, ip_protocol):
-                BUILD_BUG_ON(hweight_long(SK_FL_PROTO_MASK) != BITS_PER_BYTE);
+                BUILD_BUG_ON(HWEIGHT32(SK_FL_PROTO_MASK) != BITS_PER_BYTE);
                 SK_REUSEPORT_LOAD_SK_FIELD_SIZE_OFF(__sk_flags_offset,
                                                     BPF_W, 0);
                 *insn++ = BPF_ALU32_IMM(BPF_AND, si->dst_reg, SK_FL_PROTO_MASK);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 24431e578310..60c928894a78 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -324,6 +324,10 @@ void rtnl_unregister_all(int protocol)
 
         rtnl_lock();
         tab = rtnl_msg_handlers[protocol];
+        if (!tab) {
+                rtnl_unlock();
+                return;
+        }
         RCU_INIT_POINTER(rtnl_msg_handlers[protocol], NULL);
         for (msgindex = 0; msgindex < RTM_NR_MSGTYPES; msgindex++) {
                 link = tab[msgindex];
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index e63c554e0623..9f3209ff7ffd 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -19,12 +19,10 @@
 #include <linux/of_mdio.h>
 #include <linux/of_platform.h>
 #include <linux/of_net.h>
-#include <linux/of_gpio.h>
 #include <linux/netdevice.h>
 #include <linux/sysfs.h>
 #include <linux/phy_fixed.h>
 #include <linux/ptp_classify.h>
-#include <linux/gpio/consumer.h>
 #include <linux/etherdevice.h>
 
 #include "dsa_priv.h"
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 962c4fd338ba..1c45c1d6d241 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -767,7 +767,6 @@ static int dsa_slave_add_cls_matchall(struct net_device *dev,
         const struct tc_action *a;
         struct dsa_port *to_dp;
         int err = -EOPNOTSUPP;
-        LIST_HEAD(actions);
 
         if (!ds->ops->port_mirror_add)
                 return err;
@@ -775,8 +774,7 @@ static int dsa_slave_add_cls_matchall(struct net_device *dev,
         if (!tcf_exts_has_one_action(cls->exts))
                 return err;
 
-        tcf_exts_to_list(cls->exts, &actions);
-        a = list_first_entry(&actions, struct tc_action, list);
+        a = tcf_exts_first_action(cls->exts);
 
         if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) {
                 struct dsa_mall_mirror_tc_entry *mirror;
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index cf75f8944b05..4da39446da2d 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -820,10 +820,9 @@ static void igmp_timer_expire(struct timer_list *t)
         spin_lock(&im->lock);
         im->tm_running = 0;
 
-        if (im->unsolicit_count) {
-                im->unsolicit_count--;
+        if (im->unsolicit_count && --im->unsolicit_count)
                 igmp_start_timer(im, unsolicited_report_interval(in_dev));
-        }
+
         im->reporter = 1;
         spin_unlock(&im->lock);
 
@@ -1308,6 +1307,8 @@ static void igmp_group_added(struct ip_mc_list *im)
 
         if (in_dev->dead)
                 return;
+
+        im->unsolicit_count = net->ipv4.sysctl_igmp_qrv;
         if (IGMP_V1_SEEN(in_dev) || IGMP_V2_SEEN(in_dev)) {
                 spin_lock_bh(&im->lock);
                 igmp_start_timer(im, IGMP_INITIAL_REPORT_DELAY);
@@ -1391,9 +1392,6 @@ static void __ip_mc_inc_group(struct in_device *in_dev, __be32 addr,
                               unsigned int mode)
 {
         struct ip_mc_list *im;
-#ifdef CONFIG_IP_MULTICAST
-        struct net *net = dev_net(in_dev->dev);
-#endif
 
         ASSERT_RTNL();
 
@@ -1420,7 +1418,6 @@ static void __ip_mc_inc_group(struct in_device *in_dev, __be32 addr,
         spin_lock_init(&im->lock);
 #ifdef CONFIG_IP_MULTICAST
         timer_setup(&im->timer, igmp_timer_expire, 0);
-        im->unsolicit_count = net->ipv4.sysctl_igmp_qrv;
 #endif
 
         im->next_rcu = in_dev->mc_list;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 51a5d06085ac..ae714aecc31c 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1508,11 +1508,14 @@ nla_put_failure:
 
 static void erspan_setup(struct net_device *dev)
 {
+        struct ip_tunnel *t = netdev_priv(dev);
+
         ether_setup(dev);
         dev->netdev_ops = &erspan_netdev_ops;
         dev->priv_flags &= ~IFF_TX_SKB_SHARING;
         dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
         ip_tunnel_setup(dev, erspan_net_id);
+        t->erspan_ver = 1;
 }
 
 static const struct nla_policy ipgre_policy[IFLA_GRE_MAX + 1] = {
diff --git a/net/ipv4/tcp_bbr.c b/net/ipv4/tcp_bbr.c
index 13d34427ca3d..02ff2dde9609 100644
--- a/net/ipv4/tcp_bbr.c
+++ b/net/ipv4/tcp_bbr.c
@@ -95,11 +95,10 @@ struct bbr {
         u32     mode:3,              /* current bbr_mode in state machine */
                 prev_ca_state:3,     /* CA state on previous ACK */
                 packet_conservation:1,  /* use packet conservation? */
-                restore_cwnd:1,      /* decided to revert cwnd to old value */
                 round_start:1,       /* start of packet-timed tx->ack round? */
                 idle_restart:1,      /* restarting after idle? */
                 probe_rtt_round_done:1,  /* a BBR_PROBE_RTT round at 4 pkts? */
-                unused:12,
+                unused:13,
                 lt_is_sampling:1,    /* taking long-term ("LT") samples now? */
                 lt_rtt_cnt:7,        /* round trips in long-term interval */
                 lt_use_bw:1;         /* use lt_bw as our bw estimate? */
@@ -175,6 +174,8 @@ static const u32 bbr_lt_bw_diff = 4000 / 8;
 /* If we estimate we're policed, use lt_bw for this many round trips: */
 static const u32 bbr_lt_bw_max_rtts = 48;
 
+static void bbr_check_probe_rtt_done(struct sock *sk);
+
 /* Do we estimate that STARTUP filled the pipe? */
 static bool bbr_full_bw_reached(const struct sock *sk)
 {
@@ -309,6 +310,8 @@ static void bbr_cwnd_event(struct sock *sk, enum tcp_ca_event event)
                  */
                 if (bbr->mode == BBR_PROBE_BW)
                         bbr_set_pacing_rate(sk, bbr_bw(sk), BBR_UNIT);
+                else if (bbr->mode == BBR_PROBE_RTT)
+                        bbr_check_probe_rtt_done(sk);
         }
 }
 
@@ -396,17 +399,11 @@ static bool bbr_set_cwnd_to_recover_or_restore(
                 cwnd = tcp_packets_in_flight(tp) + acked;
         } else if (prev_state >= TCP_CA_Recovery && state < TCP_CA_Recovery) {
                 /* Exiting loss recovery; restore cwnd saved before recovery. */
-                bbr->restore_cwnd = 1;
+                cwnd = max(cwnd, bbr->prior_cwnd);
                 bbr->packet_conservation = 0;
         }
         bbr->prev_ca_state = state;
 
-        if (bbr->restore_cwnd) {
-                /* Restore cwnd after exiting loss recovery or PROBE_RTT. */
-                cwnd = max(cwnd, bbr->prior_cwnd);
-                bbr->restore_cwnd = 0;
-        }
-
         if (bbr->packet_conservation) {
                 *new_cwnd = max(cwnd, tcp_packets_in_flight(tp) + acked);
                 return true;    /* yes, using packet conservation */
@@ -423,10 +420,10 @@ static void bbr_set_cwnd(struct sock *sk, const struct rate_sample *rs,
 {
         struct tcp_sock *tp = tcp_sk(sk);
         struct bbr *bbr = inet_csk_ca(sk);
-        u32 cwnd = 0, target_cwnd = 0;
+        u32 cwnd = tp->snd_cwnd, target_cwnd = 0;
 
         if (!acked)
-                return;
+                goto done;  /* no packet fully ACKed; just apply caps */
 
         if (bbr_set_cwnd_to_recover_or_restore(sk, rs, acked, &cwnd))
                 goto done;
@@ -748,6 +745,20 @@ static void bbr_check_drain(struct sock *sk, const struct rate_sample *rs)
                 bbr_reset_probe_bw_mode(sk);  /* we estimate queue is drained */
 }
 
+static void bbr_check_probe_rtt_done(struct sock *sk)
+{
+        struct tcp_sock *tp = tcp_sk(sk);
+        struct bbr *bbr = inet_csk_ca(sk);
+
+        if (!(bbr->probe_rtt_done_stamp &&
+              after(tcp_jiffies32, bbr->probe_rtt_done_stamp)))
+                return;
+
+        bbr->min_rtt_stamp = tcp_jiffies32;  /* wait a while until PROBE_RTT */
+        tp->snd_cwnd = max(tp->snd_cwnd, bbr->prior_cwnd);
+        bbr_reset_mode(sk);
+}
+
 /* The goal of PROBE_RTT mode is to have BBR flows cooperatively and
  * periodically drain the bottleneck queue, to converge to measure the true
  * min_rtt (unloaded propagation delay). This allows the flows to keep queues
@@ -806,12 +817,8 @@ static void bbr_update_min_rtt(struct sock *sk, const struct rate_sample *rs)
                 } else if (bbr->probe_rtt_done_stamp) {
                         if (bbr->round_start)
                                 bbr->probe_rtt_round_done = 1;
-                        if (bbr->probe_rtt_round_done &&
-                            after(tcp_jiffies32, bbr->probe_rtt_done_stamp)) {
-                                bbr->min_rtt_stamp = tcp_jiffies32;
-                                bbr->restore_cwnd = 1;  /* snap to prior_cwnd */
-                                bbr_reset_mode(sk);
-                        }
+                        if (bbr->probe_rtt_round_done)
+                                bbr_check_probe_rtt_done(sk);
                 }
         }
         /* Restart after idle ends only once we process a new S/ACK for data */
@@ -862,7 +869,6 @@ static void bbr_init(struct sock *sk)
         bbr->has_seen_rtt = 0;
         bbr_init_pacing_rate_from_rtt(sk);
 
-        bbr->restore_cwnd = 0;
         bbr->round_start = 0;
         bbr->idle_restart = 0;
         bbr->full_bw_reached = 0;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 9e041fa5c545..44c09eddbb78 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2517,6 +2517,12 @@ static int __net_init tcp_sk_init(struct net *net)
                 if (res)
                         goto fail;
                 sock_set_flag(sk, SOCK_USE_WRITE_QUEUE);
+
+                /* Please enforce IP_DF and IPID==0 for RST and
+                 * ACK sent in SYN-RECV and TIME-WAIT state.
+                 */
+                inet_sk(sk)->pmtudisc = IP_PMTUDISC_DO;
+
                 *per_cpu_ptr(net->ipv4.tcp_sk, cpu) = sk;
         }
 
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 75ef332a7caf..12affb7864d9 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -184,8 +184,9 @@ kill:
                                 inet_twsk_deschedule_put(tw);
                                 return TCP_TW_SUCCESS;
                         }
+                } else {
+                        inet_twsk_reschedule(tw, TCP_TIMEWAIT_LEN);
                 }
-                inet_twsk_reschedule(tw, TCP_TIMEWAIT_LEN);
 
                 if (tmp_opt.saw_tstamp) {
                         tcptw->tw_ts_recent       = tmp_opt.rcv_tsval;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 2fac4ad74867..d51a8c0b3372 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2398,7 +2398,7 @@ static void addrconf_add_mroute(struct net_device *dev)
 
         ipv6_addr_set(&cfg.fc_dst, htonl(0xFF000000), 0, 0, 0);
 
-        ip6_route_add(&cfg, GFP_ATOMIC, NULL);
+        ip6_route_add(&cfg, GFP_KERNEL, NULL);
 }
 
 static struct inet6_dev *addrconf_add_dev(struct net_device *dev)
@@ -3062,7 +3062,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
         if (addr.s6_addr32[3]) {
                 add_addr(idev, &addr, plen, scope);
                 addrconf_prefix_route(&addr, plen, 0, idev->dev, 0, pflags,
-                                      GFP_ATOMIC);
+                                      GFP_KERNEL);
                 return;
         }
 
@@ -3087,7 +3087,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 
                                 add_addr(idev, &addr, plen, flag);
                                 addrconf_prefix_route(&addr, plen, 0, idev->dev,
-                                                      0, pflags, GFP_ATOMIC);
+                                                      0, pflags, GFP_KERNEL);
                         }
                 }
         }
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 673bba31eb18..9a4261e50272 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -938,14 +938,14 @@ static int __init inet6_init(void)
 
         err = proto_register(&pingv6_prot, 1);
         if (err)
-                goto out_unregister_ping_proto;
+                goto out_unregister_raw_proto;
 
         /* We MUST register RAW sockets before we create the ICMP6,
          * IGMP6, or NDISC control sockets.
          */
         err = rawv6_init();
         if (err)
-                goto out_unregister_raw_proto;
+                goto out_unregister_ping_proto;
 
         /* Register the family here so that the init calls below will
          * be able to create sockets. (?? is this dangerous ??)
@@ -1113,11 +1113,11 @@ netfilter_fail:
 igmp_fail:
         ndisc_cleanup();
 ndisc_fail:
-        ip6_mr_cleanup();
+        icmpv6_cleanup();
 icmp_fail:
-        unregister_pernet_subsys(&inet6_net_ops);
+        ip6_mr_cleanup();
 ipmr_fail:
-        icmpv6_cleanup();
+        unregister_pernet_subsys(&inet6_net_ops);
 register_pernet_fail:
         sock_unregister(PF_INET6);
         rtnl_unregister_all(PF_INET6);
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index d212738e9d10..5516f55e214b 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -198,6 +198,8 @@ void fib6_info_destroy_rcu(struct rcu_head *head)
                 }
         }
 
+        lwtstate_put(f6i->fib6_nh.nh_lwtstate);
+
         if (f6i->fib6_nh.nh_dev)
                 dev_put(f6i->fib6_nh.nh_dev);
 
@@ -987,7 +989,10 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct fib6_info *rt,
                                         fib6_clean_expires(iter);
                                 else
                                         fib6_set_expires(iter, rt->expires);
-                                fib6_metric_set(iter, RTAX_MTU, rt->fib6_pmtu);
+
+                                if (rt->fib6_pmtu)
+                                        fib6_metric_set(iter, RTAX_MTU,
+                                                        rt->fib6_pmtu);
                                 return -EEXIST;
                         }
                         /* If we have the same destination and the same metric,
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 18a3794b0f52..e493b041d4ac 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1778,6 +1778,7 @@ static void ip6gre_netlink_parms(struct nlattr *data[],
         if (data[IFLA_GRE_COLLECT_METADATA])
                 parms->collect_md = true;
 
+        parms->erspan_ver = 1;
         if (data[IFLA_GRE_ERSPAN_VER])
                 parms->erspan_ver = nla_get_u8(data[IFLA_GRE_ERSPAN_VER]);
 
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 5df2a58d945c..419960b0ba16 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1188,7 +1188,15 @@ route_lookup:
                 init_tel_txopt(&opt, encap_limit);
                 ipv6_push_frag_opts(skb, &opt.ops, &proto);
         }
-        hop_limit = hop_limit ? : ip6_dst_hoplimit(dst);
+
+        if (hop_limit == 0) {
+                if (skb->protocol == htons(ETH_P_IP))
+                        hop_limit = ip_hdr(skb)->ttl;
+                else if (skb->protocol == htons(ETH_P_IPV6))
+                        hop_limit = ipv6_hdr(skb)->hop_limit;
+                else
+                        hop_limit = ip6_dst_hoplimit(dst);
+        }
 
         /* Calculate max headroom for all the headers and adjust
          * needed_headroom if necessary.
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 38dec9da90d3..eeaf7455d51e 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -481,7 +481,7 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
         }
 
         mtu = dst_mtu(dst);
-        if (!skb->ignore_df && skb->len > mtu) {
+        if (skb->len > mtu) {
                 skb_dst_update_pmtu(skb, mtu);
 
                 if (skb->protocol == htons(ETH_P_IPV6)) {
@@ -1094,7 +1094,8 @@ static void __net_exit vti6_destroy_tunnels(struct vti6_net *ip6n,
         }
 
         t = rtnl_dereference(ip6n->tnls_wc[0]);
-        unregister_netdevice_queue(t->dev, list);
+        if (t)
+                unregister_netdevice_queue(t->dev, list);
 }
 
 static int __net_init vti6_init_net(struct net *net)
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 7208c16302f6..18e00ce1719a 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -956,7 +956,7 @@ static void ip6_rt_init_dst(struct rt6_info *rt, struct fib6_info *ort)
         rt->dst.error = 0;
         rt->dst.output = ip6_output;
 
-        if (ort->fib6_type == RTN_LOCAL) {
+        if (ort->fib6_type == RTN_LOCAL || ort->fib6_type == RTN_ANYCAST) {
                 rt->dst.input = ip6_input;
         } else if (ipv6_addr_type(&ort->fib6_dst.addr) & IPV6_ADDR_MULTICAST) {
                 rt->dst.input = ip6_mc_input;
@@ -996,7 +996,6 @@ static void ip6_rt_copy_init(struct rt6_info *rt, struct fib6_info *ort)
         rt->rt6i_src = ort->fib6_src;
 #endif
         rt->rt6i_prefsrc = ort->fib6_prefsrc;
-        rt->dst.lwtstate = lwtstate_get(ort->fib6_nh.nh_lwtstate);
 }
 
 static struct fib6_node* fib6_backtrack(struct fib6_node *fn,
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 6449a1c2283b..f0f5fedb8caa 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -947,8 +947,8 @@ static void ieee80211_rx_mgmt_deauth_ibss(struct ieee80211_sub_if_data *sdata,
         if (len < IEEE80211_DEAUTH_FRAME_LEN)
                 return;
 
-        ibss_dbg(sdata, "RX DeAuth SA=%pM DA=%pM BSSID=%pM (reason: %d)\n",
-                 mgmt->sa, mgmt->da, mgmt->bssid, reason);
+        ibss_dbg(sdata, "RX DeAuth SA=%pM DA=%pM\n", mgmt->sa, mgmt->da);
+        ibss_dbg(sdata, "\tBSSID=%pM (reason: %d)\n", mgmt->bssid, reason);
         sta_info_destroy_addr(sdata, mgmt->sa);
 }
 
@@ -966,9 +966,9 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
         auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
         auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
 
-        ibss_dbg(sdata,
-                 "RX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=%d)\n",
-                 mgmt->sa, mgmt->da, mgmt->bssid, auth_transaction);
+        ibss_dbg(sdata, "RX Auth SA=%pM DA=%pM\n", mgmt->sa, mgmt->da);
+        ibss_dbg(sdata, "\tBSSID=%pM (auth_transaction=%d)\n",
+                 mgmt->bssid, auth_transaction);
 
         if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1)
                 return;
@@ -1175,10 +1175,10 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
                 rx_timestamp = drv_get_tsf(local, sdata);
         }
 
-        ibss_dbg(sdata,
-                 "RX beacon SA=%pM BSSID=%pM TSF=0x%llx BCN=0x%llx diff=%lld @%lu\n",
+        ibss_dbg(sdata, "RX beacon SA=%pM BSSID=%pM TSF=0x%llx\n",
                  mgmt->sa, mgmt->bssid,
-                 (unsigned long long)rx_timestamp,
+                 (unsigned long long)rx_timestamp);
+        ibss_dbg(sdata, "\tBCN=0x%llx diff=%lld @%lu\n",
                  (unsigned long long)beacon_timestamp,
                  (unsigned long long)(rx_timestamp - beacon_timestamp),
                  jiffies);
@@ -1537,9 +1537,9 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 
         tx_last_beacon = drv_tx_last_beacon(local);
 
-        ibss_dbg(sdata,
-                 "RX ProbeReq SA=%pM DA=%pM BSSID=%pM (tx_last_beacon=%d)\n",
-                 mgmt->sa, mgmt->da, mgmt->bssid, tx_last_beacon);
+        ibss_dbg(sdata, "RX ProbeReq SA=%pM DA=%pM\n", mgmt->sa, mgmt->da);
+        ibss_dbg(sdata, "\tBSSID=%pM (tx_last_beacon=%d)\n",
+                 mgmt->bssid, tx_last_beacon);
 
         if (!tx_last_beacon && is_multicast_ether_addr(mgmt->da))
                 return;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 4fb2709cb527..513627896204 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -256,8 +256,27 @@ static void ieee80211_restart_work(struct work_struct *work)
 
         flush_work(&local->radar_detected_work);
         rtnl_lock();
-        list_for_each_entry(sdata, &local->interfaces, list)
+        list_for_each_entry(sdata, &local->interfaces, list) {
+                /*
+                 * XXX: there may be more work for other vif types and even
+                 * for station mode: a good thing would be to run most of
+                 * the iface type's dependent _stop (ieee80211_mg_stop,
+                 * ieee80211_ibss_stop) etc...
+                 * For now, fix only the specific bug that was seen: race
+                 * between csa_connection_drop_work and us.
+                 */
+                if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+                        /*
+                         * This worker is scheduled from the iface worker that
+                         * runs on mac80211's workqueue, so we can't be
+                         * scheduling this worker after the cancel right here.
+                         * The exception is ieee80211_chswitch_done.
+                         * Then we can have a race...
+                         */
+                        cancel_work_sync(&sdata->u.mgd.csa_connection_drop_work);
+                }
                 flush_delayed_work(&sdata->dec_tailroom_needed_wk);
+        }
         ieee80211_scan_cancel(local);
 
         /* make sure any new ROC will consider local->in_reconfig */
@@ -471,10 +490,7 @@ static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = {
                 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC |
                             IEEE80211_VHT_CAP_SHORT_GI_80 |
                             IEEE80211_VHT_CAP_SHORT_GI_160 |
-                            IEEE80211_VHT_CAP_RXSTBC_1 |
-                            IEEE80211_VHT_CAP_RXSTBC_2 |
-                            IEEE80211_VHT_CAP_RXSTBC_3 |
-                            IEEE80211_VHT_CAP_RXSTBC_4 |
+                            IEEE80211_VHT_CAP_RXSTBC_MASK |
                             IEEE80211_VHT_CAP_TXSTBC |
                             IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
                             IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
@@ -1208,6 +1224,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 #if IS_ENABLED(CONFIG_IPV6)
         unregister_inet6addr_notifier(&local->ifa6_notifier);
 #endif
+        ieee80211_txq_teardown_flows(local);
 
         rtnl_lock();
 
@@ -1236,7 +1253,6 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
         skb_queue_purge(&local->skb_queue);
         skb_queue_purge(&local->skb_queue_unreliable);
         skb_queue_purge(&local->skb_queue_tdls_chsw);
-        ieee80211_txq_teardown_flows(local);
 
         destroy_workqueue(local->workqueue);
         wiphy_unregister(local->hw.wiphy);
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 35ad3983ae4b..daf9db3c8f24 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -572,6 +572,10 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
                 forward = false;
                 reply = true;
                 target_metric = 0;
+
+                if (SN_GT(target_sn, ifmsh->sn))
+                        ifmsh->sn = target_sn;
+
                 if (time_after(jiffies, ifmsh->last_sn_update +
                                         net_traversal_jiffies(sdata)) ||
                     time_before(jiffies, ifmsh->last_sn_update)) {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7fb9957359a3..3dbecae4be73 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1073,6 +1073,10 @@ static void ieee80211_chswitch_work(struct work_struct *work)
          */
 
         if (sdata->reserved_chanctx) {
+                struct ieee80211_supported_band *sband = NULL;
+                struct sta_info *mgd_sta = NULL;
+                enum ieee80211_sta_rx_bandwidth bw = IEEE80211_STA_RX_BW_20;
+
                 /*
                  * with multi-vif csa driver may call ieee80211_csa_finish()
                  * many times while waiting for other interfaces to use their
@@ -1081,6 +1085,48 @@ static void ieee80211_chswitch_work(struct work_struct *work)
                 if (sdata->reserved_ready)
                         goto out;
 
+                if (sdata->vif.bss_conf.chandef.width !=
+                    sdata->csa_chandef.width) {
+                        /*
+                         * For managed interface, we need to also update the AP
+                         * station bandwidth and align the rate scale algorithm
+                         * on the bandwidth change. Here we only consider the
+                         * bandwidth of the new channel definition (as channel
+                         * switch flow does not have the full HT/VHT/HE
+                         * information), assuming that if additional changes are
+                         * required they would be done as part of the processing
+                         * of the next beacon from the AP.
+                         */
+                        switch (sdata->csa_chandef.width) {
+                        case NL80211_CHAN_WIDTH_20_NOHT:
+                        case NL80211_CHAN_WIDTH_20:
+                        default:
+                                bw = IEEE80211_STA_RX_BW_20;
+                                break;
+                        case NL80211_CHAN_WIDTH_40:
+                                bw = IEEE80211_STA_RX_BW_40;
+                                break;
+                        case NL80211_CHAN_WIDTH_80:
+                                bw = IEEE80211_STA_RX_BW_80;
+                                break;
+                        case NL80211_CHAN_WIDTH_80P80:
+                        case NL80211_CHAN_WIDTH_160:
+                                bw = IEEE80211_STA_RX_BW_160;
+                                break;
+                        }
+
+                        mgd_sta = sta_info_get(sdata, ifmgd->bssid);
+                        sband =
+                                local->hw.wiphy->bands[sdata->csa_chandef.chan->band];
+                }
+
+                if (sdata->vif.bss_conf.chandef.width >
+                    sdata->csa_chandef.width) {
+                        mgd_sta->sta.bandwidth = bw;
+                        rate_control_rate_update(local, sband, mgd_sta,
+                                                 IEEE80211_RC_BW_CHANGED);
+                }
+
                 ret = ieee80211_vif_use_reserved_context(sdata);
                 if (ret) {
                         sdata_info(sdata,
@@ -1091,6 +1137,13 @@ static void ieee80211_chswitch_work(struct work_struct *work)
                         goto out;
                 }
 
+                if (sdata->vif.bss_conf.chandef.width <
+                    sdata->csa_chandef.width) {
+                        mgd_sta->sta.bandwidth = bw;
+                        rate_control_rate_update(local, sband, mgd_sta,
+                                                 IEEE80211_RC_BW_CHANGED);
+                }
+
                 goto out;
         }
 
@@ -1312,6 +1365,16 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
                                          cbss->beacon_interval));
         return;
  drop_connection:
+        /*
+         * This is just so that the disconnect flow will know that
+         * we were trying to switch channel and failed. In case the
+         * mode is 1 (we are not allowed to Tx), we will know not to
+         * send a deauthentication frame. Those two fields will be
+         * reset when the disconnection worker runs.
+         */
+        sdata->vif.csa_active = true;
+        sdata->csa_block_tx = csa_ie.mode;
+
         ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work);
         mutex_unlock(&local->chanctx_mtx);
         mutex_unlock(&local->mtx);
@@ -2522,6 +2585,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
         struct ieee80211_local *local = sdata->local;
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
         u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
+        bool tx;
 
         sdata_lock(sdata);
         if (!ifmgd->associated) {
@@ -2529,6 +2593,8 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
                 return;
         }
 
+        tx = !sdata->csa_block_tx;
+
         /* AP is probably out of range (or not reachable for another reason) so
          * remove the bss struct for that AP.
          */
@@ -2536,7 +2602,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
 
         ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
                                WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
-                               true, frame_buf);
+                               tx, frame_buf);
         mutex_lock(&local->mtx);
         sdata->vif.csa_active = false;
         ifmgd->csa_waiting_bcn = false;
@@ -2547,7 +2613,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
         }
         mutex_unlock(&local->mtx);
 
-        ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true,
+        ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), tx,
                                     WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
 
         sdata_unlock(sdata);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 64742f2765c4..96611d5dfadb 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1728,6 +1728,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
          */
         if (!ieee80211_hw_check(&sta->local->hw, AP_LINK_PS) &&
             !ieee80211_has_morefrags(hdr->frame_control) &&
+            !is_multicast_ether_addr(hdr->addr1) &&
             (ieee80211_is_mgmt(hdr->frame_control) ||
              ieee80211_is_data(hdr->frame_control)) &&
             !(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) &&
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index cd332e3e1134..f353d9db54bc 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3078,27 +3078,18 @@ void ieee80211_clear_fast_xmit(struct sta_info *sta)
 }
 
 static bool ieee80211_amsdu_realloc_pad(struct ieee80211_local *local,
-                                        struct sk_buff *skb, int headroom,
-                                        int *subframe_len)
+                                        struct sk_buff *skb, int headroom)
 {
-        int amsdu_len = *subframe_len + sizeof(struct ethhdr);
-        int padding = (4 - amsdu_len) & 3;
-
-        if (skb_headroom(skb) < headroom || skb_tailroom(skb) < padding) {
+        if (skb_headroom(skb) < headroom) {
                 I802_DEBUG_INC(local->tx_expand_skb_head);
 
-                if (pskb_expand_head(skb, headroom, padding, GFP_ATOMIC)) {
+                if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) {
                         wiphy_debug(local->hw.wiphy,
                                     "failed to reallocate TX buffer\n");
                         return false;
                 }
         }
 
-        if (padding) {
-                *subframe_len += padding;
-                skb_put_zero(skb, padding);
-        }
-
         return true;
 }
 
@@ -3122,8 +3113,7 @@ static bool ieee80211_amsdu_prepare_head(struct ieee80211_sub_if_data *sdata,
         if (info->control.flags & IEEE80211_TX_CTRL_AMSDU)
                 return true;
 
-        if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(*amsdu_hdr),
-                                         &subframe_len))
+        if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(*amsdu_hdr)))
                 return false;
 
         data = skb_push(skb, sizeof(*amsdu_hdr));
@@ -3189,7 +3179,8 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
         void *data;
         bool ret = false;
         unsigned int orig_len;
-        int n = 1, nfrags;
+        int n = 2, nfrags, pad = 0;
+        u16 hdrlen;
 
         if (!ieee80211_hw_check(&local->hw, TX_AMSDU))
                 return false;
@@ -3222,9 +3213,6 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
         if (skb->len + head->len > max_amsdu_len)
                 goto out;
 
-        if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head))
-                goto out;
-
         nfrags = 1 + skb_shinfo(skb)->nr_frags;
         nfrags += 1 + skb_shinfo(head)->nr_frags;
         frag_tail = &skb_shinfo(head)->frag_list;
@@ -3240,10 +3228,24 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
         if (max_frags && nfrags > max_frags)
                 goto out;
 
-        if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(rfc1042_header) + 2,
-                                         &subframe_len))
+        if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head))
                 goto out;
 
+        /*
+         * Pad out the previous subframe to a multiple of 4 by adding the
+         * padding to the next one, that's being added. Note that head->len
+         * is the length of the full A-MSDU, but that works since each time
+         * we add a new subframe we pad out the previous one to a multiple
+         * of 4 and thus it no longer matters in the next round.
+         */
+        hdrlen = fast_tx->hdr_len - sizeof(rfc1042_header);
+        if ((head->len - hdrlen) & 3)
+                pad = 4 - ((head->len - hdrlen) & 3);
+
+        if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(rfc1042_header) +
+                                                     2 + pad))
+                goto out_recalc;
+
         ret = true;
         data = skb_push(skb, ETH_ALEN + 2);
         memmove(data, data + ETH_ALEN + 2, 2 * ETH_ALEN);
@@ -3253,15 +3255,19 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
         memcpy(data, &len, 2);
         memcpy(data + 2, rfc1042_header, sizeof(rfc1042_header));
 
+        memset(skb_push(skb, pad), 0, pad);
+
         head->len += skb->len;
         head->data_len += skb->len;
         *frag_tail = skb;
 
-        flow->backlog += head->len - orig_len;
-        tin->backlog_bytes += head->len - orig_len;
-
-        fq_recalc_backlog(fq, tin, flow);
+out_recalc:
+        if (head->len != orig_len) {
+                flow->backlog += head->len - orig_len;
+                tin->backlog_bytes += head->len - orig_len;
 
+                fq_recalc_backlog(fq, tin, flow);
+        }
 out:
         spin_unlock_bh(&fq->lock);
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 88efda7c9f8a..716cd6442d86 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1135,7 +1135,7 @@ void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
 {
         struct ieee80211_chanctx_conf *chanctx_conf;
         const struct ieee80211_reg_rule *rrule;
-        struct ieee80211_wmm_ac *wmm_ac;
+        const struct ieee80211_wmm_ac *wmm_ac;
         u16 center_freq = 0;
 
         if (sdata->vif.type != NL80211_IFTYPE_AP &&
@@ -1154,20 +1154,19 @@ void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
 
         rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq));
 
-        if (IS_ERR_OR_NULL(rrule) || !rrule->wmm_rule) {
+        if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) {
                 rcu_read_unlock();
                 return;
         }
 
         if (sdata->vif.type == NL80211_IFTYPE_AP)
-                wmm_ac = &rrule->wmm_rule->ap[ac];
+                wmm_ac = &rrule->wmm_rule.ap[ac];
         else
-                wmm_ac = &rrule->wmm_rule->client[ac];
+                wmm_ac = &rrule->wmm_rule.client[ac];
         qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min);
         qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max);
         qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn);
-        qparam->txop = !qparam->txop ? wmm_ac->cot / 32 :
-                min_t(u16, qparam->txop, wmm_ac->cot / 32);
+        qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32);
         rcu_read_unlock();
 }
 
diff --git a/net/ncsi/ncsi-netlink.c b/net/ncsi/ncsi-netlink.c
index 82e6edf9c5d9..45f33d6dedf7 100644
--- a/net/ncsi/ncsi-netlink.c
+++ b/net/ncsi/ncsi-netlink.c
@@ -100,7 +100,7 @@ static int ncsi_write_package_info(struct sk_buff *skb,
         bool found;
         int rc;
 
-        if (id > ndp->package_num) {
+        if (id > ndp->package_num - 1) {
                 netdev_info(ndp->ndev.dev, "NCSI: No package with id %u\n", id);
                 return -ENODEV;
         }
@@ -240,7 +240,7 @@ static int ncsi_pkg_info_all_nl(struct sk_buff *skb,
                 return 0; /* done */
 
         hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
-                          &ncsi_genl_family, 0,  NCSI_CMD_PKG_INFO);
+                          &ncsi_genl_family, NLM_F_MULTI,  NCSI_CMD_PKG_INFO);
         if (!hdr) {
                 rc = -EMSGSIZE;
                 goto err;
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 5610061e7f2e..75c92a87e7b2 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4137,36 +4137,52 @@ static const struct vm_operations_struct packet_mmap_ops = {
         .close  =       packet_mm_close,
 };
 
-static void free_pg_vec(struct pgv *pg_vec, unsigned int len)
+static void free_pg_vec(struct pgv *pg_vec, unsigned int order,
+                        unsigned int len)
 {
         int i;
 
         for (i = 0; i < len; i++) {
                 if (likely(pg_vec[i].buffer)) {
-                        kvfree(pg_vec[i].buffer);
+                        if (is_vmalloc_addr(pg_vec[i].buffer))
+                                vfree(pg_vec[i].buffer);
+                        else
+                                free_pages((unsigned long)pg_vec[i].buffer,
+                                           order);
                         pg_vec[i].buffer = NULL;
                 }
         }
         kfree(pg_vec);
 }
 
-static char *alloc_one_pg_vec_page(unsigned long size)
+static char *alloc_one_pg_vec_page(unsigned long order)
 {
         char *buffer;
+        gfp_t gfp_flags = GFP_KERNEL | __GFP_COMP |
+                          __GFP_ZERO | __GFP_NOWARN | __GFP_NORETRY;
 
-        buffer = kvzalloc(size, GFP_KERNEL);
+        buffer = (char *) __get_free_pages(gfp_flags, order);
         if (buffer)
                 return buffer;
 
-        buffer = kvzalloc(size, GFP_KERNEL | __GFP_RETRY_MAYFAIL);
+        /* __get_free_pages failed, fall back to vmalloc */
+        buffer = vzalloc(array_size((1 << order), PAGE_SIZE));
+        if (buffer)
+                return buffer;
 
-        return buffer;
+        /* vmalloc failed, lets dig into swap here */
+        gfp_flags &= ~__GFP_NORETRY;
+        buffer = (char *) __get_free_pages(gfp_flags, order);
+        if (buffer)
+                return buffer;
+
+        /* complete and utter failure */
+        return NULL;
 }
 
-static struct pgv *alloc_pg_vec(struct tpacket_req *req)
+static struct pgv *alloc_pg_vec(struct tpacket_req *req, int order)
 {
         unsigned int block_nr = req->tp_block_nr;
-        unsigned long size = req->tp_block_size;
         struct pgv *pg_vec;
         int i;
 
@@ -4175,7 +4191,7 @@ static struct pgv *alloc_pg_vec(struct tpacket_req *req)
                 goto out;
 
         for (i = 0; i < block_nr; i++) {
-                pg_vec[i].buffer = alloc_one_pg_vec_page(size);
+                pg_vec[i].buffer = alloc_one_pg_vec_page(order);
                 if (unlikely(!pg_vec[i].buffer))
                         goto out_free_pgvec;
         }
@@ -4184,7 +4200,7 @@ out:
         return pg_vec;
 
 out_free_pgvec:
-        free_pg_vec(pg_vec, block_nr);
+        free_pg_vec(pg_vec, order, block_nr);
         pg_vec = NULL;
         goto out;
 }
@@ -4194,9 +4210,9 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
 {
         struct pgv *pg_vec = NULL;
         struct packet_sock *po = pkt_sk(sk);
+        int was_running, order = 0;
         struct packet_ring_buffer *rb;
         struct sk_buff_head *rb_queue;
-        int was_running;
         __be16 num;
         int err = -EINVAL;
         /* Added to avoid minimal code churn */
@@ -4258,7 +4274,8 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
                         goto out;
 
                 err = -ENOMEM;
-                pg_vec = alloc_pg_vec(req);
+                order = get_order(req->tp_block_size);
+                pg_vec = alloc_pg_vec(req, order);
                 if (unlikely(!pg_vec))
                         goto out;
                 switch (po->tp_version) {
@@ -4312,6 +4329,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
                 rb->frame_size = req->tp_frame_size;
                 spin_unlock_bh(&rb_queue->lock);
 
+                swap(rb->pg_vec_order, order);
                 swap(rb->pg_vec_len, req->tp_block_nr);
 
                 rb->pg_vec_pages = req->tp_block_size/PAGE_SIZE;
@@ -4337,7 +4355,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
         }
 
         if (pg_vec)
-                free_pg_vec(pg_vec, req->tp_block_nr);
+                free_pg_vec(pg_vec, order, req->tp_block_nr);
 out:
         return err;
 }
diff --git a/net/packet/internal.h b/net/packet/internal.h
index 8f50036f62f0..3bb7c5fb3bff 100644
--- a/net/packet/internal.h
+++ b/net/packet/internal.h
@@ -64,6 +64,7 @@ struct packet_ring_buffer {
         unsigned int            frame_size;
         unsigned int            frame_max;
 
+        unsigned int            pg_vec_order;
         unsigned int            pg_vec_pages;
         unsigned int            pg_vec_len;
 
diff --git a/net/rds/Kconfig b/net/rds/Kconfig
index 01b3bd6a3708..b9092111bc45 100644
--- a/net/rds/Kconfig
+++ b/net/rds/Kconfig
@@ -1,6 +1,6 @@
 
 config RDS
-        tristate "The RDS Protocol"
+        tristate "The Reliable Datagram Sockets Protocol"
         depends on INET
         ---help---
           The RDS (Reliable Datagram Sockets) protocol provides reliable,
diff --git a/net/rds/ib.c b/net/rds/ib.c
index c1d97640c0be..eba75c1ba359 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -341,15 +341,10 @@ static int rds6_ib_conn_info_visitor(struct rds_connection *conn,
 
         if (rds_conn_state(conn) == RDS_CONN_UP) {
                 struct rds_ib_device *rds_ibdev;
-                struct rdma_dev_addr *dev_addr;
 
                 ic = conn->c_transport_data;
-                dev_addr = &ic->i_cm_id->route.addr.dev_addr;
-                rdma_addr_get_sgid(dev_addr,
-                                   (union ib_gid *)&iinfo6->src_gid);
-                rdma_addr_get_dgid(dev_addr,
-                                   (union ib_gid *)&iinfo6->dst_gid);
-
+                rdma_read_gids(ic->i_cm_id, (union ib_gid *)&iinfo6->src_gid,
+                               (union ib_gid *)&iinfo6->dst_gid);
                 rds_ibdev = ic->rds_ibdev;
                 iinfo6->max_send_wr = ic->i_send_ring.w_nr;
                 iinfo6->max_recv_wr = ic->i_recv_ring.w_nr;
diff --git a/net/rds/tcp.c b/net/rds/tcp.c
index 2c7b7c352d3e..b9bbcf3d6c63 100644
--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -37,7 +37,6 @@
 #include <net/tcp.h>
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
-#include <net/tcp.h>
 #include <net/addrconf.h>
 
 #include "rds.h"
diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c
index 00192a996be0..0f8465852254 100644
--- a/net/rfkill/rfkill-gpio.c
+++ b/net/rfkill/rfkill-gpio.c
@@ -20,6 +20,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/rfkill.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 229d63c99be2..e12f8ef7baa4 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -300,21 +300,17 @@ int tcf_generic_walker(struct tc_action_net *tn, struct sk_buff *skb,
 }
 EXPORT_SYMBOL(tcf_generic_walker);
 
-static bool __tcf_idr_check(struct tc_action_net *tn, u32 index,
-                            struct tc_action **a, int bind)
+int tcf_idr_search(struct tc_action_net *tn, struct tc_action **a, u32 index)
 {
         struct tcf_idrinfo *idrinfo = tn->idrinfo;
         struct tc_action *p;
 
         spin_lock(&idrinfo->lock);
         p = idr_find(&idrinfo->action_idr, index);
-        if (IS_ERR(p)) {
+        if (IS_ERR(p))
                 p = NULL;
-        } else if (p) {
+        else if (p)
                 refcount_inc(&p->tcfa_refcnt);
-                if (bind)
-                        atomic_inc(&p->tcfa_bindcnt);
-        }
         spin_unlock(&idrinfo->lock);
 
         if (p) {
@@ -323,23 +319,10 @@ static bool __tcf_idr_check(struct tc_action_net *tn, u32 index,
         }
         return false;
 }
-
-int tcf_idr_search(struct tc_action_net *tn, struct tc_action **a, u32 index)
-{
-        return __tcf_idr_check(tn, index, a, 0);
-}
 EXPORT_SYMBOL(tcf_idr_search);
 
-bool tcf_idr_check(struct tc_action_net *tn, u32 index, struct tc_action **a,
-                   int bind)
+static int tcf_idr_delete_index(struct tcf_idrinfo *idrinfo, u32 index)
 {
-        return __tcf_idr_check(tn, index, a, bind);
-}
-EXPORT_SYMBOL(tcf_idr_check);
-
-int tcf_idr_delete_index(struct tc_action_net *tn, u32 index)
-{
-        struct tcf_idrinfo *idrinfo = tn->idrinfo;
         struct tc_action *p;
         int ret = 0;
 
@@ -370,7 +353,6 @@ int tcf_idr_delete_index(struct tc_action_net *tn, u32 index)
         spin_unlock(&idrinfo->lock);
         return ret;
 }
-EXPORT_SYMBOL(tcf_idr_delete_index);
 
 int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est,
                    struct tc_action **a, const struct tc_action_ops *ops,
@@ -409,7 +391,6 @@ int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est,
 
         p->idrinfo = idrinfo;
         p->ops = ops;
-        INIT_LIST_HEAD(&p->list);
         *a = p;
         return 0;
 err3:
@@ -681,19 +662,30 @@ int tcf_action_destroy(struct tc_action *actions[], int bind)
         return ret;
 }
 
+static int tcf_action_destroy_1(struct tc_action *a, int bind)
+{
+        struct tc_action *actions[] = { a, NULL };
+
+        return tcf_action_destroy(actions, bind);
+}
+
 static int tcf_action_put(struct tc_action *p)
 {
         return __tcf_action_put(p, false);
 }
 
+/* Put all actions in this array, skip those NULL's. */
 static void tcf_action_put_many(struct tc_action *actions[])
 {
         int i;
 
-        for (i = 0; i < TCA_ACT_MAX_PRIO && actions[i]; i++) {
+        for (i = 0; i < TCA_ACT_MAX_PRIO; i++) {
                 struct tc_action *a = actions[i];
-                const struct tc_action_ops *ops = a->ops;
+                const struct tc_action_ops *ops;
 
+                if (!a)
+                        continue;
+                ops = a->ops;
                 if (tcf_action_put(a))
                         module_put(ops->owner);
         }
@@ -896,17 +888,16 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
         if (TC_ACT_EXT_CMP(a->tcfa_action, TC_ACT_GOTO_CHAIN)) {
                 err = tcf_action_goto_chain_init(a, tp);
                 if (err) {
-                        struct tc_action *actions[] = { a, NULL };
-
-                        tcf_action_destroy(actions, bind);
+                        tcf_action_destroy_1(a, bind);
                         NL_SET_ERR_MSG(extack, "Failed to init TC action chain");
                         return ERR_PTR(err);
                 }
         }
 
         if (!tcf_action_valid(a->tcfa_action)) {
-                NL_SET_ERR_MSG(extack, "invalid action value, using TC_ACT_UNSPEC instead");
-                a->tcfa_action = TC_ACT_UNSPEC;
+                tcf_action_destroy_1(a, bind);
+                NL_SET_ERR_MSG(extack, "Invalid control action value");
+                return ERR_PTR(-EINVAL);
         }
 
         return a;
@@ -1175,41 +1166,38 @@ err_out:
         return err;
 }
 
-static int tcf_action_delete(struct net *net, struct tc_action *actions[],
-                             int *acts_deleted, struct netlink_ext_ack *extack)
+static int tcf_action_delete(struct net *net, struct tc_action *actions[])
 {
-        u32 act_index;
-        int ret, i;
+        int i;
 
         for (i = 0; i < TCA_ACT_MAX_PRIO && actions[i]; i++) {
                 struct tc_action *a = actions[i];
                 const struct tc_action_ops *ops = a->ops;
-
                 /* Actions can be deleted concurrently so we must save their
                  * type and id to search again after reference is released.
                  */
-                act_index = a->tcfa_index;
+                struct tcf_idrinfo *idrinfo = a->idrinfo;
+                u32 act_index = a->tcfa_index;
 
+                actions[i] = NULL;
                 if (tcf_action_put(a)) {
                         /* last reference, action was deleted concurrently */
                         module_put(ops->owner);
                 } else  {
+                        int ret;
+
                         /* now do the delete */
-                        ret = ops->delete(net, act_index);
-                        if (ret < 0) {
-                                *acts_deleted = i + 1;
+                        ret = tcf_idr_delete_index(idrinfo, act_index);
+                        if (ret < 0)
                                 return ret;
-                        }
                 }
         }
-        *acts_deleted = i;
         return 0;
 }
 
 static int
 tcf_del_notify(struct net *net, struct nlmsghdr *n, struct tc_action *actions[],
-               int *acts_deleted, u32 portid, size_t attr_size,
-               struct netlink_ext_ack *extack)
+               u32 portid, size_t attr_size, struct netlink_ext_ack *extack)
 {
         int ret;
         struct sk_buff *skb;
@@ -1227,7 +1215,7 @@ tcf_del_notify(struct net *net, struct nlmsghdr *n, struct tc_action *actions[],
         }
 
         /* now do the delete */
-        ret = tcf_action_delete(net, actions, acts_deleted, extack);
+        ret = tcf_action_delete(net, actions);
         if (ret < 0) {
                 NL_SET_ERR_MSG(extack, "Failed to delete TC action");
                 kfree_skb(skb);
@@ -1249,8 +1237,7 @@ tca_action_gd(struct net *net, struct nlattr *nla, struct nlmsghdr *n,
         struct nlattr *tb[TCA_ACT_MAX_PRIO + 1];
         struct tc_action *act;
         size_t attr_size = 0;
-        struct tc_action *actions[TCA_ACT_MAX_PRIO + 1] = {};
-        int acts_deleted = 0;
+        struct tc_action *actions[TCA_ACT_MAX_PRIO] = {};
 
         ret = nla_parse_nested(tb, TCA_ACT_MAX_PRIO, nla, NULL, extack);
         if (ret < 0)
@@ -1280,14 +1267,13 @@ tca_action_gd(struct net *net, struct nlattr *nla, struct nlmsghdr *n,
         if (event == RTM_GETACTION)
                 ret = tcf_get_notify(net, portid, n, actions, event, extack);
         else { /* delete */
-                ret = tcf_del_notify(net, n, actions, &acts_deleted, portid,
-                                     attr_size, extack);
+                ret = tcf_del_notify(net, n, actions, portid, attr_size, extack);
                 if (ret)
                         goto err;
-                return ret;
+                return 0;
         }
 err:
-        tcf_action_put_many(&actions[acts_deleted]);
+        tcf_action_put_many(actions);
         return ret;
 }
 
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index d30b23e42436..0c68bc9cf0b4 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -395,13 +395,6 @@ static int tcf_bpf_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_bpf_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, bpf_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_bpf_ops __read_mostly = {
         .kind           =       "bpf",
         .type           =       TCA_ACT_BPF,
@@ -412,7 +405,6 @@ static struct tc_action_ops act_bpf_ops __read_mostly = {
         .init           =       tcf_bpf_init,
         .walk           =       tcf_bpf_walker,
         .lookup         =       tcf_bpf_search,
-        .delete         =       tcf_bpf_delete,
         .size           =       sizeof(struct tcf_bpf),
 };
 
diff --git a/net/sched/act_connmark.c b/net/sched/act_connmark.c
index 54c0bf54f2ac..6f0f273f1139 100644
--- a/net/sched/act_connmark.c
+++ b/net/sched/act_connmark.c
@@ -198,13 +198,6 @@ static int tcf_connmark_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_connmark_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, connmark_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_connmark_ops = {
         .kind           =       "connmark",
         .type           =       TCA_ACT_CONNMARK,
@@ -214,7 +207,6 @@ static struct tc_action_ops act_connmark_ops = {
         .init           =       tcf_connmark_init,
         .walk           =       tcf_connmark_walker,
         .lookup         =       tcf_connmark_search,
-        .delete         =       tcf_connmark_delete,
         .size           =       sizeof(struct tcf_connmark_info),
 };
 
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index e698d3fe2080..b8a67ae3105a 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -659,13 +659,6 @@ static size_t tcf_csum_get_fill_size(const struct tc_action *act)
         return nla_total_size(sizeof(struct tc_csum));
 }
 
-static int tcf_csum_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, csum_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_csum_ops = {
         .kind           = "csum",
         .type           = TCA_ACT_CSUM,
@@ -677,7 +670,6 @@ static struct tc_action_ops act_csum_ops = {
         .walk           = tcf_csum_walker,
         .lookup         = tcf_csum_search,
         .get_fill_size  = tcf_csum_get_fill_size,
-        .delete         = tcf_csum_delete,
         .size           = sizeof(struct tcf_csum),
 };
 
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index 6a3f25a8ffb3..cd1d9bd32ef9 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -243,13 +243,6 @@ static size_t tcf_gact_get_fill_size(const struct tc_action *act)
         return sz;
 }
 
-static int tcf_gact_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, gact_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_gact_ops = {
         .kind           =       "gact",
         .type           =       TCA_ACT_GACT,
@@ -261,7 +254,6 @@ static struct tc_action_ops act_gact_ops = {
         .walk           =       tcf_gact_walker,
         .lookup         =       tcf_gact_search,
         .get_fill_size  =       tcf_gact_get_fill_size,
-        .delete         =       tcf_gact_delete,
         .size           =       sizeof(struct tcf_gact),
 };
 
diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c
index d1081bdf1bdb..06a3d4801878 100644
--- a/net/sched/act_ife.c
+++ b/net/sched/act_ife.c
@@ -167,16 +167,16 @@ static struct tcf_meta_ops *find_ife_oplist(u16 metaid)
 {
         struct tcf_meta_ops *o;
 
-        read_lock_bh(&ife_mod_lock);
+        read_lock(&ife_mod_lock);
         list_for_each_entry(o, &ifeoplist, list) {
                 if (o->metaid == metaid) {
                         if (!try_module_get(o->owner))
                                 o = NULL;
-                        read_unlock_bh(&ife_mod_lock);
+                        read_unlock(&ife_mod_lock);
                         return o;
                 }
         }
-        read_unlock_bh(&ife_mod_lock);
+        read_unlock(&ife_mod_lock);
 
         return NULL;
 }
@@ -190,12 +190,12 @@ int register_ife_op(struct tcf_meta_ops *mops)
             !mops->get || !mops->alloc)
                 return -EINVAL;
 
-        write_lock_bh(&ife_mod_lock);
+        write_lock(&ife_mod_lock);
 
         list_for_each_entry(m, &ifeoplist, list) {
                 if (m->metaid == mops->metaid ||
                     (strcmp(mops->name, m->name) == 0)) {
-                        write_unlock_bh(&ife_mod_lock);
+                        write_unlock(&ife_mod_lock);
                         return -EEXIST;
                 }
         }
@@ -204,7 +204,7 @@ int register_ife_op(struct tcf_meta_ops *mops)
                 mops->release = ife_release_meta_gen;
 
         list_add_tail(&mops->list, &ifeoplist);
-        write_unlock_bh(&ife_mod_lock);
+        write_unlock(&ife_mod_lock);
         return 0;
 }
 EXPORT_SYMBOL_GPL(unregister_ife_op);
@@ -214,7 +214,7 @@ int unregister_ife_op(struct tcf_meta_ops *mops)
         struct tcf_meta_ops *m;
         int err = -ENOENT;
 
-        write_lock_bh(&ife_mod_lock);
+        write_lock(&ife_mod_lock);
         list_for_each_entry(m, &ifeoplist, list) {
                 if (m->metaid == mops->metaid) {
                         list_del(&mops->list);
@@ -222,7 +222,7 @@ int unregister_ife_op(struct tcf_meta_ops *mops)
                         break;
                 }
         }
-        write_unlock_bh(&ife_mod_lock);
+        write_unlock(&ife_mod_lock);
 
         return err;
 }
@@ -265,11 +265,8 @@ static const char *ife_meta_id2name(u32 metaid)
 #endif
 
 /* called when adding new meta information
- * under ife->tcf_lock for existing action
 */
-static int load_metaops_and_vet(struct tcf_ife_info *ife, u32 metaid,
-                                void *val, int len, bool exists,
-                                bool rtnl_held)
+static int load_metaops_and_vet(u32 metaid, void *val, int len, bool rtnl_held)
 {
         struct tcf_meta_ops *ops = find_ife_oplist(metaid);
         int ret = 0;
@@ -277,15 +274,11 @@ static int load_metaops_and_vet(struct tcf_ife_info *ife, u32 metaid,
         if (!ops) {
                 ret = -ENOENT;
 #ifdef CONFIG_MODULES
-                if (exists)
-                        spin_unlock_bh(&ife->tcf_lock);
                 if (rtnl_held)
                         rtnl_unlock();
                 request_module("ife-meta-%s", ife_meta_id2name(metaid));
                 if (rtnl_held)
                         rtnl_lock();
-                if (exists)
-                        spin_lock_bh(&ife->tcf_lock);
                 ops = find_ife_oplist(metaid);
 #endif
         }
@@ -302,24 +295,17 @@ static int load_metaops_and_vet(struct tcf_ife_info *ife, u32 metaid,
 }
 
 /* called when adding new meta information
- * under ife->tcf_lock for existing action
 */
-static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval,
-                        int len, bool atomic)
+static int __add_metainfo(const struct tcf_meta_ops *ops,
+                          struct tcf_ife_info *ife, u32 metaid, void *metaval,
+                          int len, bool atomic, bool exists)
 {
         struct tcf_meta_info *mi = NULL;
-        struct tcf_meta_ops *ops = find_ife_oplist(metaid);
         int ret = 0;
 
-        if (!ops)
-                return -ENOENT;
-
         mi = kzalloc(sizeof(*mi), atomic ? GFP_ATOMIC : GFP_KERNEL);
-        if (!mi) {
-                /*put back what find_ife_oplist took */
-                module_put(ops->owner);
+        if (!mi)
                 return -ENOMEM;
-        }
 
         mi->metaid = metaid;
         mi->ops = ops;
@@ -327,29 +313,61 @@ static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval,
                 ret = ops->alloc(mi, metaval, atomic ? GFP_ATOMIC : GFP_KERNEL);
                 if (ret != 0) {
                         kfree(mi);
-                        module_put(ops->owner);
                         return ret;
                 }
         }
 
+        if (exists)
+                spin_lock_bh(&ife->tcf_lock);
         list_add_tail(&mi->metalist, &ife->metalist);
+        if (exists)
+                spin_unlock_bh(&ife->tcf_lock);
+
+        return ret;
+}
+
+static int add_metainfo_and_get_ops(const struct tcf_meta_ops *ops,
+                                    struct tcf_ife_info *ife, u32 metaid,
+                                    bool exists)
+{
+        int ret;
+
+        if (!try_module_get(ops->owner))
+                return -ENOENT;
+        ret = __add_metainfo(ops, ife, metaid, NULL, 0, true, exists);
+        if (ret)
+                module_put(ops->owner);
+        return ret;
+}
+
+static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval,
+                        int len, bool exists)
+{
+        const struct tcf_meta_ops *ops = find_ife_oplist(metaid);
+        int ret;
 
+        if (!ops)
+                return -ENOENT;
+        ret = __add_metainfo(ops, ife, metaid, metaval, len, false, exists);
+        if (ret)
+                /*put back what find_ife_oplist took */
+                module_put(ops->owner);
         return ret;
 }
 
-static int use_all_metadata(struct tcf_ife_info *ife)
+static int use_all_metadata(struct tcf_ife_info *ife, bool exists)
 {
         struct tcf_meta_ops *o;
         int rc = 0;
         int installed = 0;
 
-        read_lock_bh(&ife_mod_lock);
+        read_lock(&ife_mod_lock);
         list_for_each_entry(o, &ifeoplist, list) {
-                rc = add_metainfo(ife, o->metaid, NULL, 0, true);
+                rc = add_metainfo_and_get_ops(o, ife, o->metaid, exists);
                 if (rc == 0)
                         installed += 1;
         }
-        read_unlock_bh(&ife_mod_lock);
+        read_unlock(&ife_mod_lock);
 
         if (installed)
                 return 0;
@@ -396,7 +414,6 @@ static void _tcf_ife_cleanup(struct tc_action *a)
         struct tcf_meta_info *e, *n;
 
         list_for_each_entry_safe(e, n, &ife->metalist, metalist) {
-                module_put(e->ops->owner);
                 list_del(&e->metalist);
                 if (e->metaval) {
                         if (e->ops->release)
@@ -404,6 +421,7 @@ static void _tcf_ife_cleanup(struct tc_action *a)
                         else
                                 kfree(e->metaval);
                 }
+                module_put(e->ops->owner);
                 kfree(e);
         }
 }
@@ -422,7 +440,6 @@ static void tcf_ife_cleanup(struct tc_action *a)
                 kfree_rcu(p, rcu);
 }
 
-/* under ife->tcf_lock for existing action */
 static int populate_metalist(struct tcf_ife_info *ife, struct nlattr **tb,
                              bool exists, bool rtnl_held)
 {
@@ -436,8 +453,7 @@ static int populate_metalist(struct tcf_ife_info *ife, struct nlattr **tb,
                         val = nla_data(tb[i]);
                         len = nla_len(tb[i]);
 
-                        rc = load_metaops_and_vet(ife, i, val, len, exists,
-                                                  rtnl_held);
+                        rc = load_metaops_and_vet(i, val, len, rtnl_held);
                         if (rc != 0)
                                 return rc;
 
@@ -540,8 +556,6 @@ static int tcf_ife_init(struct net *net, struct nlattr *nla,
                 p->eth_type = ife_type;
         }
 
-        if (exists)
-                spin_lock_bh(&ife->tcf_lock);
 
         if (ret == ACT_P_CREATED)
                 INIT_LIST_HEAD(&ife->metalist);
@@ -551,10 +565,7 @@ static int tcf_ife_init(struct net *net, struct nlattr *nla,
                                        NULL, NULL);
                 if (err) {
 metadata_parse_err:
-                        if (exists)
-                                spin_unlock_bh(&ife->tcf_lock);
                         tcf_idr_release(*a, bind);
-
                         kfree(p);
                         return err;
                 }
@@ -569,17 +580,16 @@ metadata_parse_err:
                  * as we can. You better have at least one else we are
                  * going to bail out
                  */
-                err = use_all_metadata(ife);
+                err = use_all_metadata(ife, exists);
                 if (err) {
-                        if (exists)
-                                spin_unlock_bh(&ife->tcf_lock);
                         tcf_idr_release(*a, bind);
-
                         kfree(p);
                         return err;
                 }
         }
 
+        if (exists)
+                spin_lock_bh(&ife->tcf_lock);
         ife->tcf_action = parm->action;
         /* protected by tcf_lock when modifying existing action */
         rcu_swap_protected(ife->params, p, 1);
@@ -853,13 +863,6 @@ static int tcf_ife_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_ife_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, ife_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_ife_ops = {
         .kind = "ife",
         .type = TCA_ACT_IFE,
@@ -870,7 +873,6 @@ static struct tc_action_ops act_ife_ops = {
         .init = tcf_ife_init,
         .walk = tcf_ife_walker,
         .lookup = tcf_ife_search,
-        .delete = tcf_ife_delete,
         .size = sizeof(struct tcf_ife_info),
 };
 
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 51f235bbeb5b..23273b5303fd 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -337,13 +337,6 @@ static int tcf_ipt_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_ipt_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, ipt_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_ipt_ops = {
         .kind           =       "ipt",
         .type           =       TCA_ACT_IPT,
@@ -354,7 +347,6 @@ static struct tc_action_ops act_ipt_ops = {
         .init           =       tcf_ipt_init,
         .walk           =       tcf_ipt_walker,
         .lookup         =       tcf_ipt_search,
-        .delete         =       tcf_ipt_delete,
         .size           =       sizeof(struct tcf_ipt),
 };
 
@@ -395,13 +387,6 @@ static int tcf_xt_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_xt_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, xt_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_xt_ops = {
         .kind           =       "xt",
         .type           =       TCA_ACT_XT,
@@ -412,7 +397,6 @@ static struct tc_action_ops act_xt_ops = {
         .init           =       tcf_xt_init,
         .walk           =       tcf_xt_walker,
         .lookup         =       tcf_xt_search,
-        .delete         =       tcf_xt_delete,
         .size           =       sizeof(struct tcf_ipt),
 };
 
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 38fd20f10f67..8bf66d0a6800 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -395,13 +395,6 @@ static void tcf_mirred_put_dev(struct net_device *dev)
         dev_put(dev);
 }
 
-static int tcf_mirred_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, mirred_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_mirred_ops = {
         .kind           =       "mirred",
         .type           =       TCA_ACT_MIRRED,
@@ -416,7 +409,6 @@ static struct tc_action_ops act_mirred_ops = {
         .size           =       sizeof(struct tcf_mirred),
         .get_dev        =       tcf_mirred_get_dev,
         .put_dev        =       tcf_mirred_put_dev,
-        .delete         =       tcf_mirred_delete,
 };
 
 static __net_init int mirred_init_net(struct net *net)
diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index 822e903bfc25..4313aa102440 100644
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -300,13 +300,6 @@ static int tcf_nat_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_nat_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, nat_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_nat_ops = {
         .kind           =       "nat",
         .type           =       TCA_ACT_NAT,
@@ -316,7 +309,6 @@ static struct tc_action_ops act_nat_ops = {
         .init           =       tcf_nat_init,
         .walk           =       tcf_nat_walker,
         .lookup         =       tcf_nat_search,
-        .delete         =       tcf_nat_delete,
         .size           =       sizeof(struct tcf_nat),
 };
 
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 8a7a7cb94e83..ad99a99f11f6 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -109,16 +109,18 @@ static int tcf_pedit_key_ex_dump(struct sk_buff *skb,
 {
         struct nlattr *keys_start = nla_nest_start(skb, TCA_PEDIT_KEYS_EX);
 
+        if (!keys_start)
+                goto nla_failure;
         for (; n > 0; n--) {
                 struct nlattr *key_start;
 
                 key_start = nla_nest_start(skb, TCA_PEDIT_KEY_EX);
+                if (!key_start)
+                        goto nla_failure;
 
                 if (nla_put_u16(skb, TCA_PEDIT_KEY_EX_HTYPE, keys_ex->htype) ||
-                    nla_put_u16(skb, TCA_PEDIT_KEY_EX_CMD, keys_ex->cmd)) {
-                        nlmsg_trim(skb, keys_start);
-                        return -EINVAL;
-                }
+                    nla_put_u16(skb, TCA_PEDIT_KEY_EX_CMD, keys_ex->cmd))
+                        goto nla_failure;
 
                 nla_nest_end(skb, key_start);
 
@@ -128,6 +130,9 @@ static int tcf_pedit_key_ex_dump(struct sk_buff *skb,
         nla_nest_end(skb, keys_start);
 
         return 0;
+nla_failure:
+        nla_nest_cancel(skb, keys_start);
+        return -EINVAL;
 }
 
 static int tcf_pedit_init(struct net *net, struct nlattr *nla,
@@ -418,7 +423,10 @@ static int tcf_pedit_dump(struct sk_buff *skb, struct tc_action *a,
         opt->bindcnt = atomic_read(&p->tcf_bindcnt) - bind;
 
         if (p->tcfp_keys_ex) {
-                tcf_pedit_key_ex_dump(skb, p->tcfp_keys_ex, p->tcfp_nkeys);
+                if (tcf_pedit_key_ex_dump(skb,
+                                          p->tcfp_keys_ex,
+                                          p->tcfp_nkeys))
+                        goto nla_put_failure;
 
                 if (nla_put(skb, TCA_PEDIT_PARMS_EX, s, opt))
                         goto nla_put_failure;
@@ -460,13 +468,6 @@ static int tcf_pedit_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_pedit_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, pedit_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_pedit_ops = {
         .kind           =       "pedit",
         .type           =       TCA_ACT_PEDIT,
@@ -477,7 +478,6 @@ static struct tc_action_ops act_pedit_ops = {
         .init           =       tcf_pedit_init,
         .walk           =       tcf_pedit_walker,
         .lookup         =       tcf_pedit_search,
-        .delete         =       tcf_pedit_delete,
         .size           =       sizeof(struct tcf_pedit),
 };
 
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 06f0742db593..5d8bfa878477 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -320,13 +320,6 @@ static int tcf_police_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_police_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, police_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 MODULE_AUTHOR("Alexey Kuznetsov");
 MODULE_DESCRIPTION("Policing actions");
 MODULE_LICENSE("GPL");
@@ -340,7 +333,6 @@ static struct tc_action_ops act_police_ops = {
         .init           =       tcf_police_init,
         .walk           =       tcf_police_walker,
         .lookup         =       tcf_police_search,
-        .delete         =       tcf_police_delete,
         .size           =       sizeof(struct tcf_police),
 };
 
diff --git a/net/sched/act_sample.c b/net/sched/act_sample.c
index 207b4132d1b0..44e9c00657bc 100644
--- a/net/sched/act_sample.c
+++ b/net/sched/act_sample.c
@@ -232,13 +232,6 @@ static int tcf_sample_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_sample_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, sample_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_sample_ops = {
         .kind     = "sample",
         .type     = TCA_ACT_SAMPLE,
@@ -249,7 +242,6 @@ static struct tc_action_ops act_sample_ops = {
         .cleanup  = tcf_sample_cleanup,
         .walk     = tcf_sample_walker,
         .lookup   = tcf_sample_search,
-        .delete   = tcf_sample_delete,
         .size     = sizeof(struct tcf_sample),
 };
 
diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index e616523ba3c1..52400d49f81f 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -196,13 +196,6 @@ static int tcf_simp_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_simp_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, simp_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_simp_ops = {
         .kind           =       "simple",
         .type           =       TCA_ACT_SIMP,
@@ -213,7 +206,6 @@ static struct tc_action_ops act_simp_ops = {
         .init           =       tcf_simp_init,
         .walk           =       tcf_simp_walker,
         .lookup         =       tcf_simp_search,
-        .delete         =       tcf_simp_delete,
         .size           =       sizeof(struct tcf_defact),
 };
 
diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
index 926d7bc4a89d..73e44ce2a883 100644
--- a/net/sched/act_skbedit.c
+++ b/net/sched/act_skbedit.c
@@ -299,13 +299,6 @@ static int tcf_skbedit_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_skbedit_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, skbedit_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_skbedit_ops = {
         .kind           =       "skbedit",
         .type           =       TCA_ACT_SKBEDIT,
@@ -316,7 +309,6 @@ static struct tc_action_ops act_skbedit_ops = {
         .cleanup        =       tcf_skbedit_cleanup,
         .walk           =       tcf_skbedit_walker,
         .lookup         =       tcf_skbedit_search,
-        .delete         =       tcf_skbedit_delete,
         .size           =       sizeof(struct tcf_skbedit),
 };
 
diff --git a/net/sched/act_skbmod.c b/net/sched/act_skbmod.c
index d6a1af0c4171..588077fafd6c 100644
--- a/net/sched/act_skbmod.c
+++ b/net/sched/act_skbmod.c
@@ -259,13 +259,6 @@ static int tcf_skbmod_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_skbmod_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, skbmod_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_skbmod_ops = {
         .kind           =       "skbmod",
         .type           =       TCA_ACT_SKBMOD,
@@ -276,7 +269,6 @@ static struct tc_action_ops act_skbmod_ops = {
         .cleanup        =       tcf_skbmod_cleanup,
         .walk           =       tcf_skbmod_walker,
         .lookup         =       tcf_skbmod_search,
-        .delete         =       tcf_skbmod_delete,
         .size           =       sizeof(struct tcf_skbmod),
 };
 
diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
index 8f09cf08d8fe..420759153d5f 100644
--- a/net/sched/act_tunnel_key.c
+++ b/net/sched/act_tunnel_key.c
@@ -548,13 +548,6 @@ static int tunnel_key_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tunnel_key_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, tunnel_key_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_tunnel_key_ops = {
         .kind           =       "tunnel_key",
         .type           =       TCA_ACT_TUNNEL_KEY,
@@ -565,7 +558,6 @@ static struct tc_action_ops act_tunnel_key_ops = {
         .cleanup        =       tunnel_key_release,
         .walk           =       tunnel_key_walker,
         .lookup         =       tunnel_key_search,
-        .delete         =       tunnel_key_delete,
         .size           =       sizeof(struct tcf_tunnel_key),
 };
 
diff --git a/net/sched/act_vlan.c b/net/sched/act_vlan.c
index 209e70ad2c09..033d273afe50 100644
--- a/net/sched/act_vlan.c
+++ b/net/sched/act_vlan.c
@@ -296,13 +296,6 @@ static int tcf_vlan_search(struct net *net, struct tc_action **a, u32 index,
         return tcf_idr_search(tn, a, index);
 }
 
-static int tcf_vlan_delete(struct net *net, u32 index)
-{
-        struct tc_action_net *tn = net_generic(net, vlan_net_id);
-
-        return tcf_idr_delete_index(tn, index);
-}
-
 static struct tc_action_ops act_vlan_ops = {
         .kind           =       "vlan",
         .type           =       TCA_ACT_VLAN,
@@ -313,7 +306,6 @@ static struct tc_action_ops act_vlan_ops = {
         .cleanup        =       tcf_vlan_cleanup,
         .walk           =       tcf_vlan_walker,
         .lookup         =       tcf_vlan_search,
-        .delete         =       tcf_vlan_delete,
         .size           =       sizeof(struct tcf_vlan),
 };
 
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 31bd1439cf60..1a67af8a6e8c 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -1252,7 +1252,7 @@ replay:
         }
         chain = tcf_chain_get(block, chain_index, true);
         if (!chain) {
-                NL_SET_ERR_MSG(extack, "Cannot find specified filter chain");
+                NL_SET_ERR_MSG(extack, "Cannot create specified filter chain");
                 err = -ENOMEM;
                 goto errout;
         }
@@ -1399,7 +1399,7 @@ static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
                         goto errout;
                 }
                 NL_SET_ERR_MSG(extack, "Cannot find specified filter chain");
-                err = -EINVAL;
+                err = -ENOENT;
                 goto errout;
         }
 
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index d5d2a6dc3921..f218ccf1e2d9 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -914,6 +914,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
         struct nlattr *opt = tca[TCA_OPTIONS];
         struct nlattr *tb[TCA_U32_MAX + 1];
         u32 htid, flags = 0;
+        size_t sel_size;
         int err;
 #ifdef CONFIG_CLS_U32_PERF
         size_t size;
@@ -1076,8 +1077,13 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
         }
 
         s = nla_data(tb[TCA_U32_SEL]);
+        sel_size = struct_size(s, keys, s->nkeys);
+        if (nla_len(tb[TCA_U32_SEL]) < sel_size) {
+                err = -EINVAL;
+                goto erridr;
+        }
 
-        n = kzalloc(sizeof(*n) + s->nkeys*sizeof(struct tc_u32_key), GFP_KERNEL);
+        n = kzalloc(offsetof(typeof(*n), sel) + sel_size, GFP_KERNEL);
         if (n == NULL) {
                 err = -ENOBUFS;
                 goto erridr;
@@ -1092,7 +1098,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
         }
 #endif
 
-        memcpy(&n->sel, s, sizeof(*s) + s->nkeys*sizeof(struct tc_u32_key));
+        memcpy(&n->sel, s, sel_size);
         RCU_INIT_POINTER(n->ht_up, ht);
         n->handle = handle;
         n->fshift = s->hmask ? ffs(ntohl(s->hmask)) - 1 : 0;
diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index 35fc7252187c..c07c30b916d5 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -64,7 +64,6 @@
 #include <linux/vmalloc.h>
 #include <linux/reciprocal_div.h>
 #include <net/netlink.h>
-#include <linux/version.h>
 #include <linux/if_vlan.h>
 #include <net/pkt_sched.h>
 #include <net/pkt_cls.h>
@@ -621,15 +620,20 @@ static bool cake_ddst(int flow_mode)
 }
 
 static u32 cake_hash(struct cake_tin_data *q, const struct sk_buff *skb,
-                     int flow_mode)
+                     int flow_mode, u16 flow_override, u16 host_override)
 {
-        u32 flow_hash = 0, srchost_hash, dsthost_hash;
+        u32 flow_hash = 0, srchost_hash = 0, dsthost_hash = 0;
         u16 reduced_hash, srchost_idx, dsthost_idx;
         struct flow_keys keys, host_keys;
 
         if (unlikely(flow_mode == CAKE_FLOW_NONE))
                 return 0;
 
+        /* If both overrides are set we can skip packet dissection entirely */
+        if ((flow_override || !(flow_mode & CAKE_FLOW_FLOWS)) &&
+            (host_override || !(flow_mode & CAKE_FLOW_HOSTS)))
+                goto skip_hash;
+
         skb_flow_dissect_flow_keys(skb, &keys,
                                    FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL);
 
@@ -676,6 +680,14 @@ static u32 cake_hash(struct cake_tin_data *q, const struct sk_buff *skb,
         if (flow_mode & CAKE_FLOW_FLOWS)
                 flow_hash = flow_hash_from_keys(&keys);
 
+skip_hash:
+        if (flow_override)
+                flow_hash = flow_override - 1;
+        if (host_override) {
+                dsthost_hash = host_override - 1;
+                srchost_hash = host_override - 1;
+        }
+
         if (!(flow_mode & CAKE_FLOW_FLOWS)) {
                 if (flow_mode & CAKE_FLOW_SRC_IP)
                         flow_hash ^= srchost_hash;
@@ -1571,7 +1583,7 @@ static u32 cake_classify(struct Qdisc *sch, struct cake_tin_data **t,
         struct cake_sched_data *q = qdisc_priv(sch);
         struct tcf_proto *filter;
         struct tcf_result res;
-        u32 flow = 0;
+        u16 flow = 0, host = 0;
         int result;
 
         filter = rcu_dereference_bh(q->filter_list);
@@ -1595,10 +1607,12 @@ static u32 cake_classify(struct Qdisc *sch, struct cake_tin_data **t,
 #endif
                 if (TC_H_MIN(res.classid) <= CAKE_QUEUES)
                         flow = TC_H_MIN(res.classid);
+                if (TC_H_MAJ(res.classid) <= (CAKE_QUEUES << 16))
+                        host = TC_H_MAJ(res.classid) >> 16;
         }
 hash:
         *t = cake_select_tin(sch, skb);
-        return flow ?: cake_hash(*t, skb, flow_mode) + 1;
+        return cake_hash(*t, skb, flow_mode, flow, host) + 1;
 }
 
 static void cake_reconfigure(struct Qdisc *sch);
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index ef5c9a82d4e8..a644292f9faf 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -215,7 +215,6 @@ static const struct seq_operations sctp_eps_ops = {
 struct sctp_ht_iter {
         struct seq_net_private p;
         struct rhashtable_iter hti;
-        int start_fail;
 };
 
 static void *sctp_transport_seq_start(struct seq_file *seq, loff_t *pos)
@@ -224,7 +223,6 @@ static void *sctp_transport_seq_start(struct seq_file *seq, loff_t *pos)
 
         sctp_transport_walk_start(&iter->hti);
 
-        iter->start_fail = 0;
         return sctp_transport_get_idx(seq_file_net(seq), &iter->hti, *pos);
 }
 
@@ -232,8 +230,6 @@ static void sctp_transport_seq_stop(struct seq_file *seq, void *v)
 {
         struct sctp_ht_iter *iter = seq->private;
 
-        if (iter->start_fail)
-                return;
         sctp_transport_walk_stop(&iter->hti);
 }
 
@@ -264,8 +260,6 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
         }
 
         transport = (struct sctp_transport *)v;
-        if (!sctp_transport_hold(transport))
-                return 0;
         assoc = transport->asoc;
         epb = &assoc->base;
         sk = epb->sk;
@@ -322,8 +316,6 @@ static int sctp_remaddr_seq_show(struct seq_file *seq, void *v)
         }
 
         transport = (struct sctp_transport *)v;
-        if (!sctp_transport_hold(transport))
-                return 0;
         assoc = transport->asoc;
 
         list_for_each_entry_rcu(tsp, &assoc->peer.transport_addr_list,
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index e96b15a66aba..f73e9d38d5ba 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2658,20 +2658,23 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
         }
 
         if (params->spp_flags & SPP_IPV6_FLOWLABEL) {
-                if (trans && trans->ipaddr.sa.sa_family == AF_INET6) {
-                        trans->flowlabel = params->spp_ipv6_flowlabel &
-                                           SCTP_FLOWLABEL_VAL_MASK;
-                        trans->flowlabel |= SCTP_FLOWLABEL_SET_MASK;
-                } else if (asoc) {
-                        list_for_each_entry(trans,
-                                            &asoc->peer.transport_addr_list,
-                                            transports) {
-                                if (trans->ipaddr.sa.sa_family != AF_INET6)
-                                        continue;
+                if (trans) {
+                        if (trans->ipaddr.sa.sa_family == AF_INET6) {
                                 trans->flowlabel = params->spp_ipv6_flowlabel &
                                                    SCTP_FLOWLABEL_VAL_MASK;
                                 trans->flowlabel |= SCTP_FLOWLABEL_SET_MASK;
                         }
+                } else if (asoc) {
+                        struct sctp_transport *t;
+
+                        list_for_each_entry(t, &asoc->peer.transport_addr_list,
+                                            transports) {
+                                if (t->ipaddr.sa.sa_family != AF_INET6)
+                                        continue;
+                                t->flowlabel = params->spp_ipv6_flowlabel &
+                                               SCTP_FLOWLABEL_VAL_MASK;
+                                t->flowlabel |= SCTP_FLOWLABEL_SET_MASK;
+                        }
                         asoc->flowlabel = params->spp_ipv6_flowlabel &
                                           SCTP_FLOWLABEL_VAL_MASK;
                         asoc->flowlabel |= SCTP_FLOWLABEL_SET_MASK;
@@ -2687,12 +2690,13 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
                         trans->dscp = params->spp_dscp & SCTP_DSCP_VAL_MASK;
                         trans->dscp |= SCTP_DSCP_SET_MASK;
                 } else if (asoc) {
-                        list_for_each_entry(trans,
-                                            &asoc->peer.transport_addr_list,
+                        struct sctp_transport *t;
+
+                        list_for_each_entry(t, &asoc->peer.transport_addr_list,
                                             transports) {
-                                trans->dscp = params->spp_dscp &
-                                              SCTP_DSCP_VAL_MASK;
-                                trans->dscp |= SCTP_DSCP_SET_MASK;
+                                t->dscp = params->spp_dscp &
+                                          SCTP_DSCP_VAL_MASK;
+                                t->dscp |= SCTP_DSCP_SET_MASK;
                         }
                         asoc->dscp = params->spp_dscp & SCTP_DSCP_VAL_MASK;
                         asoc->dscp |= SCTP_DSCP_SET_MASK;
@@ -5005,9 +5009,14 @@ struct sctp_transport *sctp_transport_get_next(struct net *net,
                         break;
                 }
 
+                if (!sctp_transport_hold(t))
+                        continue;
+
                 if (net_eq(sock_net(t->asoc->base.sk), net) &&
                     t->asoc->peer.primary_path == t)
                         break;
+
+                sctp_transport_put(t);
         }
 
         return t;
@@ -5017,13 +5026,18 @@ struct sctp_transport *sctp_transport_get_idx(struct net *net,
                                               struct rhashtable_iter *iter,
                                               int pos)
 {
-        void *obj = SEQ_START_TOKEN;
+        struct sctp_transport *t;
 
-        while (pos && (obj = sctp_transport_get_next(net, iter)) &&
-               !IS_ERR(obj))
-                pos--;
+        if (!pos)
+                return SEQ_START_TOKEN;
 
-        return obj;
+        while ((t = sctp_transport_get_next(net, iter)) && !IS_ERR(t)) {
+                if (!--pos)
+                        break;
+                sctp_transport_put(t);
+        }
+
+        return t;
 }
 
 int sctp_for_each_endpoint(int (*cb)(struct sctp_endpoint *, void *),
@@ -5082,8 +5096,6 @@ again:
 
         tsp = sctp_transport_get_idx(net, &hti, *pos + 1);
         for (; !IS_ERR_OR_NULL(tsp); tsp = sctp_transport_get_next(net, &hti)) {
-                if (!sctp_transport_hold(tsp))
-                        continue;
                 ret = cb(tsp, p);
                 if (ret)
                         break;
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 9ee6cfea56dd..d8026543bf4c 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -51,12 +51,12 @@ const char tipc_bclink_name[] = "broadcast-link";
  * struct tipc_bc_base - base structure for keeping broadcast send state
  * @link: broadcast send link structure
  * @inputq: data input queue; will only carry SOCK_WAKEUP messages
- * @dest: array keeping number of reachable destinations per bearer
+ * @dests: array keeping number of reachable destinations per bearer
  * @primary_bearer: a bearer having links to all broadcast destinations, if any
  * @bcast_support: indicates if primary bearer, if any, supports broadcast
  * @rcast_support: indicates if all peer nodes support replicast
  * @rc_ratio: dest count as percentage of cluster size where send method changes
- * @bc_threshold: calculated drom rc_ratio; if dests > threshold use broadcast
+ * @bc_threshold: calculated from rc_ratio; if dests > threshold use broadcast
  */
 struct tipc_bc_base {
         struct tipc_link *link;
diff --git a/net/tipc/diag.c b/net/tipc/diag.c
index aaabb0b776dd..73137f4aeb68 100644
--- a/net/tipc/diag.c
+++ b/net/tipc/diag.c
@@ -84,7 +84,9 @@ static int tipc_sock_diag_handler_dump(struct sk_buff *skb,
 
         if (h->nlmsg_flags & NLM_F_DUMP) {
                 struct netlink_dump_control c = {
+                        .start = tipc_dump_start,
                         .dump = tipc_diag_dump,
+                        .done = tipc_dump_done,
                 };
                 netlink_dump_start(net->diag_nlsk, skb, h, &c);
                 return 0;
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index 88f027b502f6..66d5b2c5987a 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -980,20 +980,17 @@ int tipc_nl_name_table_dump(struct sk_buff *skb, struct netlink_callback *cb)
 
 struct tipc_dest *tipc_dest_find(struct list_head *l, u32 node, u32 port)
 {
-        u64 value = (u64)node << 32 | port;
         struct tipc_dest *dst;
 
         list_for_each_entry(dst, l, list) {
-                if (dst->value != value)
-                        continue;
-                return dst;
+                if (dst->node == node && dst->port == port)
+                        return dst;
         }
         return NULL;
 }
 
 bool tipc_dest_push(struct list_head *l, u32 node, u32 port)
 {
-        u64 value = (u64)node << 32 | port;
         struct tipc_dest *dst;
 
         if (tipc_dest_find(l, node, port))
@@ -1002,7 +999,8 @@ bool tipc_dest_push(struct list_head *l, u32 node, u32 port)
         dst = kmalloc(sizeof(*dst), GFP_ATOMIC);
         if (unlikely(!dst))
                 return false;
-        dst->value = value;
+        dst->node = node;
+        dst->port = port;
         list_add(&dst->list, l);
         return true;
 }
diff --git a/net/tipc/name_table.h b/net/tipc/name_table.h
index 0febba41da86..892bd750b85f 100644
--- a/net/tipc/name_table.h
+++ b/net/tipc/name_table.h
@@ -133,13 +133,8 @@ void tipc_nametbl_stop(struct net *net);
 
 struct tipc_dest {
         struct list_head list;
-        union {
-                struct {
-                        u32 port;
-                        u32 node;
-                };
-                u64 value;
-        };
+        u32 port;
+        u32 node;
 };
 
 struct tipc_dest *tipc_dest_find(struct list_head *l, u32 node, u32 port);
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c
index 6ff2254088f6..99ee419210ba 100644
--- a/net/tipc/netlink.c
+++ b/net/tipc/netlink.c
@@ -167,7 +167,9 @@ static const struct genl_ops tipc_genl_v2_ops[] = {
         },
         {
                 .cmd    = TIPC_NL_SOCK_GET,
+                .start = tipc_dump_start,
                 .dumpit = tipc_nl_sk_dump,
+                .done   = tipc_dump_done,
                 .policy = tipc_nl_policy,
         },
         {
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index c1e93c9515bc..ab7a2a7178f7 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -2672,6 +2672,8 @@ void tipc_sk_reinit(struct net *net)
 
                 rhashtable_walk_stop(&iter);
         } while (tsk == ERR_PTR(-EAGAIN));
+
+        rhashtable_walk_exit(&iter);
 }
 
 static struct tipc_sock *tipc_sk_lookup(struct net *net, u32 portid)
@@ -3227,45 +3229,69 @@ int tipc_nl_sk_walk(struct sk_buff *skb, struct netlink_callback *cb,
                                        struct netlink_callback *cb,
                                        struct tipc_sock *tsk))
 {
-        struct net *net = sock_net(skb->sk);
-        struct tipc_net *tn = tipc_net(net);
-        const struct bucket_table *tbl;
-        u32 prev_portid = cb->args[1];
-        u32 tbl_id = cb->args[0];
-        struct rhash_head *pos;
+        struct rhashtable_iter *iter = (void *)cb->args[0];
         struct tipc_sock *tsk;
         int err;
 
-        rcu_read_lock();
-        tbl = rht_dereference_rcu((&tn->sk_rht)->tbl, &tn->sk_rht);
-        for (; tbl_id < tbl->size; tbl_id++) {
-                rht_for_each_entry_rcu(tsk, pos, tbl, tbl_id, node) {
-                        spin_lock_bh(&tsk->sk.sk_lock.slock);
-                        if (prev_portid && prev_portid != tsk->portid) {
-                                spin_unlock_bh(&tsk->sk.sk_lock.slock);
+        rhashtable_walk_start(iter);
+        while ((tsk = rhashtable_walk_next(iter)) != NULL) {
+                if (IS_ERR(tsk)) {
+                        err = PTR_ERR(tsk);
+                        if (err == -EAGAIN) {
+                                err = 0;
                                 continue;
                         }
+                        break;
+                }
 
-                        err = skb_handler(skb, cb, tsk);
-                        if (err) {
-                                prev_portid = tsk->portid;
-                                spin_unlock_bh(&tsk->sk.sk_lock.slock);
-                                goto out;
-                        }
-
-                        prev_portid = 0;
-                        spin_unlock_bh(&tsk->sk.sk_lock.slock);
+                sock_hold(&tsk->sk);
+                rhashtable_walk_stop(iter);
+                lock_sock(&tsk->sk);
+                err = skb_handler(skb, cb, tsk);
+                if (err) {
+                        release_sock(&tsk->sk);
+                        sock_put(&tsk->sk);
+                        goto out;
                 }
+                release_sock(&tsk->sk);
+                rhashtable_walk_start(iter);
+                sock_put(&tsk->sk);
         }
+        rhashtable_walk_stop(iter);
 out:
-        rcu_read_unlock();
-        cb->args[0] = tbl_id;
-        cb->args[1] = prev_portid;
-
         return skb->len;
 }
 EXPORT_SYMBOL(tipc_nl_sk_walk);
 
+int tipc_dump_start(struct netlink_callback *cb)
+{
+        struct rhashtable_iter *iter = (void *)cb->args[0];
+        struct net *net = sock_net(cb->skb->sk);
+        struct tipc_net *tn = tipc_net(net);
+
+        if (!iter) {
+                iter = kmalloc(sizeof(*iter), GFP_KERNEL);
+                if (!iter)
+                        return -ENOMEM;
+
+                cb->args[0] = (long)iter;
+        }
+
+        rhashtable_walk_enter(&tn->sk_rht, iter);
+        return 0;
+}
+EXPORT_SYMBOL(tipc_dump_start);
+
+int tipc_dump_done(struct netlink_callback *cb)
+{
+        struct rhashtable_iter *hti = (void *)cb->args[0];
+
+        rhashtable_walk_exit(hti);
+        kfree(hti);
+        return 0;
+}
+EXPORT_SYMBOL(tipc_dump_done);
+
 int tipc_sk_fill_sock_diag(struct sk_buff *skb, struct netlink_callback *cb,
                            struct tipc_sock *tsk, u32 sk_filter_state,
                            u64 (*tipc_diag_gen_cookie)(struct sock *sk))
diff --git a/net/tipc/socket.h b/net/tipc/socket.h
index aff9b2ae5a1f..d43032e26532 100644
--- a/net/tipc/socket.h
+++ b/net/tipc/socket.h
@@ -68,4 +68,6 @@ int tipc_nl_sk_walk(struct sk_buff *skb, struct netlink_callback *cb,
                     int (*skb_handler)(struct sk_buff *skb,
                                        struct netlink_callback *cb,
                                        struct tipc_sock *tsk));
+int tipc_dump_start(struct netlink_callback *cb);
+int tipc_dump_done(struct netlink_callback *cb);
 #endif
diff --git a/net/tipc/topsrv.c b/net/tipc/topsrv.c
index c8e34ef22c30..2627b5d812e9 100644
--- a/net/tipc/topsrv.c
+++ b/net/tipc/topsrv.c
@@ -313,8 +313,8 @@ static void tipc_conn_send_work(struct work_struct *work)
         conn_put(con);
 }
 
-/* tipc_conn_queue_evt() - interrupt level call from a subscription instance
- * The queued work is launched into tipc_send_work()->tipc_send_to_sock()
+/* tipc_topsrv_queue_evt() - interrupt level call from a subscription instance
+ * The queued work is launched into tipc_conn_send_work()->tipc_conn_send_to_sock()
  */
 void tipc_topsrv_queue_evt(struct net *net, int conid,
                            u32 event, struct tipc_event *evt)
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index 93c0c225ab34..180b6640e531 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -213,9 +213,14 @@ static void tls_write_space(struct sock *sk)
 {
         struct tls_context *ctx = tls_get_ctx(sk);
 
-        /* We are already sending pages, ignore notification */
-        if (ctx->in_tcp_sendpages)
+        /* If in_tcp_sendpages call lower protocol write space handler
+         * to ensure we wake up any waiting operations there. For example
+         * if do_tcp_sendpages where to call sk_wait_event.
+         */
+        if (ctx->in_tcp_sendpages) {
+                ctx->sk_write_space(sk);
                 return;
+        }
 
         if (!sk->sk_write_pending && tls_is_pending_closed_record(ctx)) {
                 gfp_t sk_allocation = sk->sk_allocation;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 5fb9b7dd9831..4b8ec659e797 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -669,13 +669,13 @@ static int nl80211_msg_put_wmm_rules(struct sk_buff *msg,
                         goto nla_put_failure;
 
                 if (nla_put_u16(msg, NL80211_WMMR_CW_MIN,
-                                rule->wmm_rule->client[j].cw_min) ||
+                                rule->wmm_rule.client[j].cw_min) ||
                     nla_put_u16(msg, NL80211_WMMR_CW_MAX,
-                                rule->wmm_rule->client[j].cw_max) ||
+                                rule->wmm_rule.client[j].cw_max) ||
                     nla_put_u8(msg, NL80211_WMMR_AIFSN,
-                               rule->wmm_rule->client[j].aifsn) ||
-                    nla_put_u8(msg, NL80211_WMMR_TXOP,
-                               rule->wmm_rule->client[j].cot))
+                               rule->wmm_rule.client[j].aifsn) ||
+                    nla_put_u16(msg, NL80211_WMMR_TXOP,
+                                rule->wmm_rule.client[j].cot))
                         goto nla_put_failure;
 
                 nla_nest_end(msg, nl_wmm_rule);
@@ -766,9 +766,9 @@ static int nl80211_msg_put_channel(struct sk_buff *msg, struct wiphy *wiphy,
 
         if (large) {
                 const struct ieee80211_reg_rule *rule =
-                        freq_reg_info(wiphy, chan->center_freq);
+                        freq_reg_info(wiphy, MHZ_TO_KHZ(chan->center_freq));
 
-                if (!IS_ERR(rule) && rule->wmm_rule) {
+                if (!IS_ERR_OR_NULL(rule) && rule->has_wmm) {
                         if (nl80211_msg_put_wmm_rules(msg, rule))
                                 goto nla_put_failure;
                 }
@@ -12205,6 +12205,7 @@ static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
                 return -EOPNOTSUPP;
 
         if (!info->attrs[NL80211_ATTR_MDID] ||
+            !info->attrs[NL80211_ATTR_IE] ||
             !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
                 return -EINVAL;
 
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 4fc66a117b7d..2f702adf2912 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -425,36 +425,23 @@ static const struct ieee80211_regdomain *
 reg_copy_regd(const struct ieee80211_regdomain *src_regd)
 {
         struct ieee80211_regdomain *regd;
-        int size_of_regd, size_of_wmms;
+        int size_of_regd;
         unsigned int i;
-        struct ieee80211_wmm_rule *d_wmm, *s_wmm;
 
         size_of_regd =
                 sizeof(struct ieee80211_regdomain) +
                 src_regd->n_reg_rules * sizeof(struct ieee80211_reg_rule);
-        size_of_wmms = src_regd->n_wmm_rules *
-                sizeof(struct ieee80211_wmm_rule);
 
-        regd = kzalloc(size_of_regd + size_of_wmms, GFP_KERNEL);
+        regd = kzalloc(size_of_regd, GFP_KERNEL);
         if (!regd)
                 return ERR_PTR(-ENOMEM);
 
         memcpy(regd, src_regd, sizeof(struct ieee80211_regdomain));
 
-        d_wmm = (struct ieee80211_wmm_rule *)((u8 *)regd + size_of_regd);
-        s_wmm = (struct ieee80211_wmm_rule *)((u8 *)src_regd + size_of_regd);
-        memcpy(d_wmm, s_wmm, size_of_wmms);
-
-        for (i = 0; i < src_regd->n_reg_rules; i++) {
+        for (i = 0; i < src_regd->n_reg_rules; i++)
                 memcpy(&regd->reg_rules[i], &src_regd->reg_rules[i],
                        sizeof(struct ieee80211_reg_rule));
-                if (!src_regd->reg_rules[i].wmm_rule)
-                        continue;
 
-                regd->reg_rules[i].wmm_rule = d_wmm +
-                        (src_regd->reg_rules[i].wmm_rule - s_wmm) /
-                        sizeof(struct ieee80211_wmm_rule);
-        }
         return regd;
 }
 
@@ -860,9 +847,10 @@ static bool valid_regdb(const u8 *data, unsigned int size)
         return true;
 }
 
-static void set_wmm_rule(struct ieee80211_wmm_rule *rule,
+static void set_wmm_rule(struct ieee80211_reg_rule *rrule,
                          struct fwdb_wmm_rule *wmm)
 {
+        struct ieee80211_wmm_rule *rule = &rrule->wmm_rule;
         unsigned int i;
 
         for (i = 0; i < IEEE80211_NUM_ACS; i++) {
@@ -876,11 +864,13 @@ static void set_wmm_rule(struct ieee80211_wmm_rule *rule,
                 rule->ap[i].aifsn = wmm->ap[i].aifsn;
                 rule->ap[i].cot = 1000 * be16_to_cpu(wmm->ap[i].cot);
         }
+
+        rrule->has_wmm = true;
 }
 
 static int __regdb_query_wmm(const struct fwdb_header *db,
                              const struct fwdb_country *country, int freq,
-                             u32 *dbptr, struct ieee80211_wmm_rule *rule)
+                             struct ieee80211_reg_rule *rule)
 {
         unsigned int ptr = be16_to_cpu(country->coll_ptr) << 2;
         struct fwdb_collection *coll = (void *)((u8 *)db + ptr);
@@ -901,8 +891,6 @@ static int __regdb_query_wmm(const struct fwdb_header *db,
                         wmm_ptr = be16_to_cpu(rrule->wmm_ptr) << 2;
                         wmm = (void *)((u8 *)db + wmm_ptr);
                         set_wmm_rule(rule, wmm);
-                        if (dbptr)
-                                *dbptr = wmm_ptr;
                         return 0;
                 }
         }
@@ -910,8 +898,7 @@ static int __regdb_query_wmm(const struct fwdb_header *db,
         return -ENODATA;
 }
 
-int reg_query_regdb_wmm(char *alpha2, int freq, u32 *dbptr,
-                        struct ieee80211_wmm_rule *rule)
+int reg_query_regdb_wmm(char *alpha2, int freq, struct ieee80211_reg_rule *rule)
 {
         const struct fwdb_header *hdr = regdb;
         const struct fwdb_country *country;
@@ -925,8 +912,7 @@ int reg_query_regdb_wmm(char *alpha2, int freq, u32 *dbptr,
         country = &hdr->country[0];
         while (country->coll_ptr) {
                 if (alpha2_equal(alpha2, country->alpha2))
-                        return __regdb_query_wmm(regdb, country, freq, dbptr,
-                                                 rule);
+                        return __regdb_query_wmm(regdb, country, freq, rule);
 
                 country++;
         }
@@ -935,32 +921,13 @@ int reg_query_regdb_wmm(char *alpha2, int freq, u32 *dbptr,
 }
 EXPORT_SYMBOL(reg_query_regdb_wmm);
 
-struct wmm_ptrs {
-        struct ieee80211_wmm_rule *rule;
-        u32 ptr;
-};
-
-static struct ieee80211_wmm_rule *find_wmm_ptr(struct wmm_ptrs *wmm_ptrs,
-                                               u32 wmm_ptr, int n_wmms)
-{
-        int i;
-
-        for (i = 0; i < n_wmms; i++) {
-                if (wmm_ptrs[i].ptr == wmm_ptr)
-                        return wmm_ptrs[i].rule;
-        }
-        return NULL;
-}
-
 static int regdb_query_country(const struct fwdb_header *db,
                                const struct fwdb_country *country)
 {
         unsigned int ptr = be16_to_cpu(country->coll_ptr) << 2;
         struct fwdb_collection *coll = (void *)((u8 *)db + ptr);
         struct ieee80211_regdomain *regdom;
-        struct ieee80211_regdomain *tmp_rd;
-        unsigned int size_of_regd, i, n_wmms = 0;
-        struct wmm_ptrs *wmm_ptrs;
+        unsigned int size_of_regd, i;
 
         size_of_regd = sizeof(struct ieee80211_regdomain) +
                 coll->n_rules * sizeof(struct ieee80211_reg_rule);
@@ -969,12 +936,6 @@ static int regdb_query_country(const struct fwdb_header *db,
         if (!regdom)
                 return -ENOMEM;
 
-        wmm_ptrs = kcalloc(coll->n_rules, sizeof(*wmm_ptrs), GFP_KERNEL);
-        if (!wmm_ptrs) {
-                kfree(regdom);
-                return -ENOMEM;
-        }
-
         regdom->n_reg_rules = coll->n_rules;
         regdom->alpha2[0] = country->alpha2[0];
         regdom->alpha2[1] = country->alpha2[1];
@@ -1013,37 +974,11 @@ static int regdb_query_country(const struct fwdb_header *db,
                                 1000 * be16_to_cpu(rule->cac_timeout);
                 if (rule->len >= offsetofend(struct fwdb_rule, wmm_ptr)) {
                         u32 wmm_ptr = be16_to_cpu(rule->wmm_ptr) << 2;
-                        struct ieee80211_wmm_rule *wmm_pos =
-                                find_wmm_ptr(wmm_ptrs, wmm_ptr, n_wmms);
-                        struct fwdb_wmm_rule *wmm;
-                        struct ieee80211_wmm_rule *wmm_rule;
-
-                        if (wmm_pos) {
-                                rrule->wmm_rule = wmm_pos;
-                                continue;
-                        }
-                        wmm = (void *)((u8 *)db + wmm_ptr);
-                        tmp_rd = krealloc(regdom, size_of_regd + (n_wmms + 1) *
-                                          sizeof(struct ieee80211_wmm_rule),
-                                          GFP_KERNEL);
-
-                        if (!tmp_rd) {
-                                kfree(regdom);
-                                kfree(wmm_ptrs);
-                                return -ENOMEM;
-                        }
-                        regdom = tmp_rd;
-
-                        wmm_rule = (struct ieee80211_wmm_rule *)
-                                ((u8 *)regdom + size_of_regd + n_wmms *
-                                sizeof(struct ieee80211_wmm_rule));
+                        struct fwdb_wmm_rule *wmm = (void *)((u8 *)db + wmm_ptr);
 
-                        set_wmm_rule(wmm_rule, wmm);
-                        wmm_ptrs[n_wmms].ptr = wmm_ptr;
-                        wmm_ptrs[n_wmms++].rule = wmm_rule;
+                        set_wmm_rule(rrule, wmm);
                 }
         }
-        kfree(wmm_ptrs);
 
         return reg_schedule_apply(regdom);
 }
diff --git a/net/wireless/util.c b/net/wireless/util.c
index e0825a019e9f..959ed3acd240 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1456,7 +1456,7 @@ bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef,
                                           u8 *op_class)
 {
         u8 vht_opclass;
-        u16 freq = chandef->center_freq1;
+        u32 freq = chandef->center_freq1;
 
         if (freq >= 2412 && freq <= 2472) {
                 if (chandef->width > NL80211_CHAN_WIDTH_40)
diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c
index 911ca6d3cb5a..bfe2dbea480b 100644
--- a/net/xdp/xdp_umem.c
+++ b/net/xdp/xdp_umem.c
@@ -74,14 +74,14 @@ int xdp_umem_assign_dev(struct xdp_umem *umem, struct net_device *dev,
                 return 0;
 
         if (!dev->netdev_ops->ndo_bpf || !dev->netdev_ops->ndo_xsk_async_xmit)
-                return force_zc ? -ENOTSUPP : 0; /* fail or fallback */
+                return force_zc ? -EOPNOTSUPP : 0; /* fail or fallback */
 
         bpf.command = XDP_QUERY_XSK_UMEM;
 
         rtnl_lock();
         err = xdp_umem_query(dev, queue_id);
         if (err) {
-                err = err < 0 ? -ENOTSUPP : -EBUSY;
+                err = err < 0 ? -EOPNOTSUPP : -EBUSY;
                 goto err_rtnl_unlock;
         }
 
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index c75413d05a63..ce53639a864a 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -153,10 +153,6 @@ cc-fullversion = $(shell $(CONFIG_SHELL) \
 # Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
 cc-ifversion = $(shell [ $(cc-version) $(1) $(2) ] && echo $(3) || echo $(4))
 
-# cc-if-fullversion
-# Usage:  EXTRA_CFLAGS += $(call cc-if-fullversion, -lt, 040502, -O1)
-cc-if-fullversion = $(shell [ $(cc-fullversion) $(1) $(2) ] && echo $(3) || echo $(4))
-
 # cc-ldoption
 # Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both)
 cc-ldoption = $(call try-run,\
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 1c48572223d1..5a2d1c9578a0 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -246,8 +246,6 @@ objtool_args += --no-fp
 endif
 ifdef CONFIG_GCOV_KERNEL
 objtool_args += --no-unreachable
-else
-objtool_args += $(call cc-ifversion, -lt, 0405, --no-unreachable)
 endif
 ifdef CONFIG_RETPOLINE
 ifneq ($(RETPOLINE_CFLAGS),)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 5219280bf7ff..161b0224d6ae 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -380,6 +380,7 @@ our $Attribute	= qr{
                         __noclone|
                         __deprecated|
                         __read_mostly|
+                        __ro_after_init|
                         __kprobes|
                         $InitAttribute|
                         ____cacheline_aligned|
@@ -3311,7 +3312,7 @@ sub process {
                         # known declaration macros
                       $sline =~ /^\+\s+$declaration_macros/ ||
                         # start of struct or union or enum
-                      $sline =~ /^\+\s+(?:union|struct|enum|typedef)\b/ ||
+                      $sline =~ /^\+\s+(?:static\s+)?(?:const\s+)?(?:union|struct|enum|typedef)\b/ ||
                         # start or end of block or continuation of declaration
                       $sline =~ /^\+\s+(?:$|[\{\}\.\#\"\?\:\(\[])/ ||
                         # bitfield continuation
diff --git a/scripts/depmod.sh b/scripts/depmod.sh
index 999d585eaa73..e083bcae343f 100755
--- a/scripts/depmod.sh
+++ b/scripts/depmod.sh
@@ -11,13 +11,14 @@ DEPMOD=$1
 KERNELRELEASE=$2
 
 if ! test -r System.map ; then
+        echo "Warning: modules_install: missing 'System.map' file. Skipping depmod." >&2
         exit 0
 fi
 
 if [ -z $(command -v $DEPMOD) ]; then
-        echo "'make modules_install' requires $DEPMOD. Please install it." >&2
+        echo "Warning: 'make modules_install' requires $DEPMOD. Please install it." >&2
         echo "This is probably in the kmod package." >&2
-        exit 1
+        exit 0
 fi
 
 # older versions of depmod require the version string to start with three
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 4a7bd2192073..67ed9f6ccdf8 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -221,7 +221,6 @@ $(obj)/zconf.tab.o: $(obj)/zconf.lex.c
 
 # check if necessary packages are available, and configure build flags
 define filechk_conf_cfg
-        $(CONFIG_SHELL) $(srctree)/scripts/kconfig/check-pkgconfig.sh; \
         $(CONFIG_SHELL) $<
 endef
 
diff --git a/scripts/kconfig/check-pkgconfig.sh b/scripts/kconfig/check-pkgconfig.sh
deleted file mode 100644
index 7a1c40bfb58c..000000000000
--- a/scripts/kconfig/check-pkgconfig.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-# Check for pkg-config presence
-
-if [ -z $(command -v pkg-config) ]; then
-        echo "'make *config' requires 'pkg-config'. Please install it." 1>&2
-        exit 1
-fi
diff --git a/scripts/kconfig/gconf-cfg.sh b/scripts/kconfig/gconf-cfg.sh
index 533b3d8f8f08..480ecd8b9f41 100755
--- a/scripts/kconfig/gconf-cfg.sh
+++ b/scripts/kconfig/gconf-cfg.sh
@@ -3,6 +3,13 @@
 
 PKG="gtk+-2.0 gmodule-2.0 libglade-2.0"
 
+if [ -z "$(command -v pkg-config)" ]; then
+        echo >&2 "*"
+        echo >&2 "* 'make gconfig' requires 'pkg-config'. Please install it."
+        echo >&2 "*"
+        exit 1
+fi
+
 if ! pkg-config --exists $PKG; then
         echo >&2 "*"
         echo >&2 "* Unable to find the GTK+ installation. Please make sure that"
diff --git a/scripts/kconfig/mconf-cfg.sh b/scripts/kconfig/mconf-cfg.sh
index e6f9facd0077..c812872d7f9d 100755
--- a/scripts/kconfig/mconf-cfg.sh
+++ b/scripts/kconfig/mconf-cfg.sh
@@ -4,20 +4,23 @@
 PKG="ncursesw"
 PKG2="ncurses"
 
-if pkg-config --exists $PKG; then
-        echo cflags=\"$(pkg-config --cflags $PKG)\"
-        echo libs=\"$(pkg-config --libs $PKG)\"
-        exit 0
-fi
+if [ -n "$(command -v pkg-config)" ]; then
+        if pkg-config --exists $PKG; then
+                echo cflags=\"$(pkg-config --cflags $PKG)\"
+                echo libs=\"$(pkg-config --libs $PKG)\"
+                exit 0
+        fi
 
-if pkg-config --exists $PKG2; then
-        echo cflags=\"$(pkg-config --cflags $PKG2)\"
-        echo libs=\"$(pkg-config --libs $PKG2)\"
-        exit 0
+        if pkg-config --exists $PKG2; then
+                echo cflags=\"$(pkg-config --cflags $PKG2)\"
+                echo libs=\"$(pkg-config --libs $PKG2)\"
+                exit 0
+        fi
 fi
 
-# Unfortunately, some distributions (e.g. openSUSE) cannot find ncurses
-# by pkg-config.
+# Check the default paths in case pkg-config is not installed.
+# (Even if it is installed, some distributions such as openSUSE cannot
+# find ncurses by pkg-config.)
 if [ -f /usr/include/ncursesw/ncurses.h ]; then
         echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncursesw\"
         echo libs=\"-lncursesw\"
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 83b5836615fb..143c05fec161 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -490,7 +490,6 @@ static void build_conf(struct menu *menu)
                         switch (prop->type) {
                         case P_MENU:
                                 child_count++;
-                                prompt = prompt;
                                 if (single_menu_mode) {
                                         item_make("%s%*c%s",
                                                   menu->data ? "-->" : "++>",
diff --git a/scripts/kconfig/nconf-cfg.sh b/scripts/kconfig/nconf-cfg.sh
index 42f5ac73548e..001559ef0a60 100644
--- a/scripts/kconfig/nconf-cfg.sh
+++ b/scripts/kconfig/nconf-cfg.sh
@@ -4,20 +4,23 @@
 PKG="ncursesw menuw panelw"
 PKG2="ncurses menu panel"
 
-if pkg-config --exists $PKG; then
-        echo cflags=\"$(pkg-config --cflags $PKG)\"
-        echo libs=\"$(pkg-config --libs $PKG)\"
-        exit 0
-fi
+if [ -n "$(command -v pkg-config)" ]; then
+        if pkg-config --exists $PKG; then
+                echo cflags=\"$(pkg-config --cflags $PKG)\"
+                echo libs=\"$(pkg-config --libs $PKG)\"
+                exit 0
+        fi
 
-if pkg-config --exists $PKG2; then
-        echo cflags=\"$(pkg-config --cflags $PKG2)\"
-        echo libs=\"$(pkg-config --libs $PKG2)\"
-        exit 0
+        if pkg-config --exists $PKG2; then
+                echo cflags=\"$(pkg-config --cflags $PKG2)\"
+                echo libs=\"$(pkg-config --libs $PKG2)\"
+                exit 0
+        fi
 fi
 
-# Unfortunately, some distributions (e.g. openSUSE) cannot find ncurses
-# by pkg-config.
+# Check the default paths in case pkg-config is not installed.
+# (Even if it is installed, some distributions such as openSUSE cannot
+# find ncurses by pkg-config.)
 if [ -f /usr/include/ncursesw/ncurses.h ]; then
         echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncursesw\"
         echo libs=\"-lncursesw -lmenuw -lpanelw\"
diff --git a/scripts/kconfig/qconf-cfg.sh b/scripts/kconfig/qconf-cfg.sh
index 0862e1562536..02ccc0ae1031 100755
--- a/scripts/kconfig/qconf-cfg.sh
+++ b/scripts/kconfig/qconf-cfg.sh
@@ -4,6 +4,13 @@
 PKG="Qt5Core Qt5Gui Qt5Widgets"
 PKG2="QtCore QtGui"
 
+if [ -z "$(command -v pkg-config)" ]; then
+        echo >&2 "*"
+        echo >&2 "* 'make xconfig' requires 'pkg-config'. Please install it."
+        echo >&2 "*"
+        exit 1
+fi
+
 if pkg-config --exists $PKG; then
         echo cflags=\"-std=c++11 -fPIC $(pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets)\"
         echo libs=\"$(pkg-config --libs $PKG)\"
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index fe06e77c15eb..f599031260d5 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -389,6 +389,9 @@ if ($arch eq "x86_64") {
     $mcount_regex = "^\\s*([0-9a-fA-F]+):\\sR_RISCV_CALL\\s_mcount\$";
     $type = ".quad";
     $alignment = 2;
+} elsif ($arch eq "nds32") {
+    $mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_NDS32_HI20_RELA\\s+_mcount\$";
+    $alignment = 2;
 } else {
     die "Arch $arch is not supported with CONFIG_FTRACE_MCOUNT_RECORD";
 }
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 71f39410691b..79f7dd57d571 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -74,7 +74,7 @@ scm_version()
                 fi
 
                 # Check for uncommitted changes
-                if git diff-index --name-only HEAD | grep -qv "^scripts/package"; then
+                if git status -uno --porcelain | grep -qv '^.. scripts/package'; then
                         printf '%s' -dirty
                 fi
 
diff --git a/security/apparmor/secid.c b/security/apparmor/secid.c
index f2f22d00db18..4ccec1bcf6f5 100644
--- a/security/apparmor/secid.c
+++ b/security/apparmor/secid.c
@@ -79,7 +79,6 @@ int apparmor_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
         struct aa_label *label = aa_secid_to_label(secid);
         int len;
 
-        AA_BUG(!secdata);
         AA_BUG(!seclen);
 
         if (!label)
diff --git a/security/keys/dh.c b/security/keys/dh.c
index 711e89d8c415..3b602a1e27fa 100644
--- a/security/keys/dh.c
+++ b/security/keys/dh.c
@@ -300,7 +300,7 @@ long __keyctl_dh_compute(struct keyctl_dh_params __user *params,
         }
         dh_inputs.g_size = dlen;
 
-        dlen = dh_data_from_key(pcopy.private, &dh_inputs.key);
+        dlen = dh_data_from_key(pcopy.dh_private, &dh_inputs.key);
         if (dlen < 0) {
                 ret = dlen;
                 goto out2;
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index 69517e18ef07..08d5662039e3 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -129,7 +129,7 @@ static int snd_rawmidi_runtime_create(struct snd_rawmidi_substream *substream)
                 runtime->avail = 0;
         else
                 runtime->avail = runtime->buffer_size;
-        runtime->buffer = kvmalloc(runtime->buffer_size, GFP_KERNEL);
+        runtime->buffer = kvzalloc(runtime->buffer_size, GFP_KERNEL);
         if (!runtime->buffer) {
                 kfree(runtime);
                 return -ENOMEM;
@@ -655,7 +655,7 @@ static int resize_runtime_buffer(struct snd_rawmidi_runtime *runtime,
         if (params->avail_min < 1 || params->avail_min > params->buffer_size)
                 return -EINVAL;
         if (params->buffer_size != runtime->buffer_size) {
-                newbuf = kvmalloc(params->buffer_size, GFP_KERNEL);
+                newbuf = kvzalloc(params->buffer_size, GFP_KERNEL);
                 if (!newbuf)
                         return -ENOMEM;
                 spin_lock_irq(&runtime->lock);
diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c
index 1bd27576db98..a835558ddbc9 100644
--- a/sound/hda/ext/hdac_ext_stream.c
+++ b/sound/hda/ext/hdac_ext_stream.c
@@ -146,7 +146,8 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_decouple);
  */
 void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *stream)
 {
-        snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL, 0, AZX_PPLCCTL_RUN);
+        snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL,
+                         AZX_PPLCCTL_RUN, AZX_PPLCCTL_RUN);
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_link_stream_start);
 
@@ -171,7 +172,8 @@ void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *stream)
 
         snd_hdac_ext_link_stream_clear(stream);
 
-        snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL, 0, AZX_PPLCCTL_STRST);
+        snd_hdac_updatel(stream->pplc_addr, AZX_REG_PPLCCTL,
+                         AZX_PPLCCTL_STRST, AZX_PPLCCTL_STRST);
         udelay(3);
         timeout = 50;
         do {
@@ -242,7 +244,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_link_set_stream_id);
 void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
                                  int stream)
 {
-        snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, 0, (1 << stream));
+        snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 0);
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_link_clear_stream_id);
 
@@ -415,7 +417,6 @@ void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *bus,
                                  bool enable, int index)
 {
         u32 mask = 0;
-        u32 register_mask = 0;
 
         if (!bus->spbcap) {
                 dev_err(bus->dev, "Address of SPB capability is NULL\n");
@@ -424,12 +425,8 @@ void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *bus,
 
         mask |= (1 << index);
 
-        register_mask = readl(bus->spbcap + AZX_REG_SPB_SPBFCCTL);
-
-        mask |= register_mask;
-
         if (enable)
-                snd_hdac_updatel(bus->spbcap, AZX_REG_SPB_SPBFCCTL, 0, mask);
+                snd_hdac_updatel(bus->spbcap, AZX_REG_SPB_SPBFCCTL, mask, mask);
         else
                 snd_hdac_updatel(bus->spbcap, AZX_REG_SPB_SPBFCCTL, mask, 0);
 }
@@ -503,7 +500,6 @@ void snd_hdac_ext_stream_drsm_enable(struct hdac_bus *bus,
                                 bool enable, int index)
 {
         u32 mask = 0;
-        u32 register_mask = 0;
 
         if (!bus->drsmcap) {
                 dev_err(bus->dev, "Address of DRSM capability is NULL\n");
@@ -512,12 +508,8 @@ void snd_hdac_ext_stream_drsm_enable(struct hdac_bus *bus,
 
         mask |= (1 << index);
 
-        register_mask = readl(bus->drsmcap + AZX_REG_SPB_SPBFCCTL);
-
-        mask |= register_mask;
-
         if (enable)
-                snd_hdac_updatel(bus->drsmcap, AZX_REG_DRSM_CTL, 0, mask);
+                snd_hdac_updatel(bus->drsmcap, AZX_REG_DRSM_CTL, mask, mask);
         else
                 snd_hdac_updatel(bus->drsmcap, AZX_REG_DRSM_CTL, mask, 0);
 }
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 0a5085537034..26d348b47867 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -3935,7 +3935,8 @@ void snd_hda_bus_reset_codecs(struct hda_bus *bus)
 
         list_for_each_codec(codec, bus) {
                 /* FIXME: maybe a better way needed for forced reset */
-                cancel_delayed_work_sync(&codec->jackpoll_work);
+                if (current_work() != &codec->jackpoll_work.work)
+                        cancel_delayed_work_sync(&codec->jackpoll_work);
 #ifdef CONFIG_PM
                 if (hda_codec_is_power_on(codec)) {
                         hda_call_codec_suspend(codec);
diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
index b2ec20e562bd..b455930a3eaf 100644
--- a/tools/bpf/bpftool/map.c
+++ b/tools/bpf/bpftool/map.c
@@ -68,6 +68,7 @@ static const char * const map_type_name[] = {
         [BPF_MAP_TYPE_DEVMAP]           = "devmap",
         [BPF_MAP_TYPE_SOCKMAP]          = "sockmap",
         [BPF_MAP_TYPE_CPUMAP]           = "cpumap",
+        [BPF_MAP_TYPE_XSKMAP]           = "xskmap",
         [BPF_MAP_TYPE_SOCKHASH]         = "sockhash",
         [BPF_MAP_TYPE_CGROUP_STORAGE]   = "cgroup_storage",
 };
diff --git a/tools/bpf/bpftool/map_perf_ring.c b/tools/bpf/bpftool/map_perf_ring.c
index 1832100d1b27..6d41323be291 100644
--- a/tools/bpf/bpftool/map_perf_ring.c
+++ b/tools/bpf/bpftool/map_perf_ring.c
@@ -194,8 +194,10 @@ int do_event_pipe(int argc, char **argv)
         }
 
         while (argc) {
-                if (argc < 2)
+                if (argc < 2) {
                         BAD_ARG();
+                        goto err_close_map;
+                }
 
                 if (is_prefix(*argv, "cpu")) {
                         char *endptr;
@@ -221,6 +223,7 @@ int do_event_pipe(int argc, char **argv)
                         NEXT_ARG();
                 } else {
                         BAD_ARG();
+                        goto err_close_map;
                 }
 
                 do_all = false;
diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat
index 56c4b3f8a01b..439b8a27488d 100755
--- a/tools/kvm/kvm_stat/kvm_stat
+++ b/tools/kvm/kvm_stat/kvm_stat
@@ -759,12 +759,18 @@ class DebugfsProvider(Provider):
             if len(vms) == 0:
                 self.do_read = False
 
-            self.paths = filter(lambda x: "{}-".format(pid) in x, vms)
+            self.paths = list(filter(lambda x: "{}-".format(pid) in x, vms))
 
         else:
             self.paths = []
             self.do_read = True
-        self.reset()
+
+    def _verify_paths(self):
+        """Remove invalid paths"""
+        for path in self.paths:
+            if not os.path.exists(os.path.join(PATH_DEBUGFS_KVM, path)):
+                self.paths.remove(path)
+                continue
 
     def read(self, reset=0, by_guest=0):
         """Returns a dict with format:'file name / field -> current value'.
@@ -780,6 +786,7 @@ class DebugfsProvider(Provider):
         # If no debugfs filtering support is available, then don't read.
         if not self.do_read:
             return results
+        self._verify_paths()
 
         paths = self.paths
         if self._pid == 0:
@@ -1096,15 +1103,16 @@ class Tui(object):
             pid = self.stats.pid_filter
         self.screen.erase()
         gname = self.get_gname_from_pid(pid)
+        self._gname = gname
         if gname:
             gname = ('({})'.format(gname[:MAX_GUEST_NAME_LEN] + '...'
                                    if len(gname) > MAX_GUEST_NAME_LEN
                                    else gname))
         if pid > 0:
-            self.screen.addstr(0, 0, 'kvm statistics - pid {0} {1}'
-                               .format(pid, gname), curses.A_BOLD)
+            self._headline = 'kvm statistics - pid {0} {1}'.format(pid, gname)
         else:
-            self.screen.addstr(0, 0, 'kvm statistics - summary', curses.A_BOLD)
+            self._headline = 'kvm statistics - summary'
+        self.screen.addstr(0, 0, self._headline, curses.A_BOLD)
         if self.stats.fields_filter:
             regex = self.stats.fields_filter
             if len(regex) > MAX_REGEX_LEN:
@@ -1162,6 +1170,19 @@ class Tui(object):
 
             return sorted_items
 
+        if not self._is_running_guest(self.stats.pid_filter):
+            if self._gname:
+                try: # ...to identify the guest by name in case it's back
+                    pids = self.get_pid_from_gname(self._gname)
+                    if len(pids) == 1:
+                        self._refresh_header(pids[0])
+                        self._update_pid(pids[0])
+                        return
+                except:
+                    pass
+            self._display_guest_dead()
+            # leave final data on screen
+            return
         row = 3
         self.screen.move(row, 0)
         self.screen.clrtobot()
@@ -1184,6 +1205,7 @@ class Tui(object):
         # print events
         tavg = 0
         tcur = 0
+        guest_removed = False
         for key, values in get_sorted_events(self, stats):
             if row >= self.screen.getmaxyx()[0] - 1 or values == (0, 0):
                 break
@@ -1191,7 +1213,10 @@ class Tui(object):
                 key = self.get_gname_from_pid(key)
                 if not key:
                     continue
-            cur = int(round(values.delta / sleeptime)) if values.delta else ''
+            cur = int(round(values.delta / sleeptime)) if values.delta else 0
+            if cur < 0:
+                guest_removed = True
+                continue
             if key[0] != ' ':
                 if values.delta:
                     tcur += values.delta
@@ -1204,13 +1229,21 @@ class Tui(object):
                                values.value * 100 / float(ltotal), cur))
             row += 1
         if row == 3:
-            self.screen.addstr(4, 1, 'No matching events reported yet')
+            if guest_removed:
+                self.screen.addstr(4, 1, 'Guest removed, updating...')
+            else:
+                self.screen.addstr(4, 1, 'No matching events reported yet')
         if row > 4:
             tavg = int(round(tcur / sleeptime)) if tcur > 0 else ''
             self.screen.addstr(row, 1, '%-40s %10d        %8s' %
                                ('Total', total, tavg), curses.A_BOLD)
         self.screen.refresh()
 
+    def _display_guest_dead(self):
+        marker = '   Guest is DEAD   '
+        y = min(len(self._headline), 80 - len(marker))
+        self.screen.addstr(0, y, marker, curses.A_BLINK | curses.A_STANDOUT)
+
     def _show_msg(self, text):
         """Display message centered text and exit on key press"""
         hint = 'Press any key to continue'
@@ -1219,10 +1252,10 @@ class Tui(object):
         (x, term_width) = self.screen.getmaxyx()
         row = 2
         for line in text:
-            start = (term_width - len(line)) / 2
+            start = (term_width - len(line)) // 2
             self.screen.addstr(row, start, line)
             row += 1
-        self.screen.addstr(row + 1, (term_width - len(hint)) / 2, hint,
+        self.screen.addstr(row + 1, (term_width - len(hint)) // 2, hint,
                            curses.A_STANDOUT)
         self.screen.getkey()
 
@@ -1319,6 +1352,12 @@ class Tui(object):
                 msg = '"' + str(val) + '": Invalid value'
         self._refresh_header()
 
+    def _is_running_guest(self, pid):
+        """Check if pid is still a running process."""
+        if not pid:
+            return True
+        return os.path.isdir(os.path.join('/proc/', str(pid)))
+
     def _show_vm_selection_by_guest(self):
         """Draws guest selection mask.
 
@@ -1346,7 +1385,7 @@ class Tui(object):
             if not guest or guest == '0':
                 break
             if guest.isdigit():
-                if not os.path.isdir(os.path.join('/proc/', guest)):
+                if not self._is_running_guest(guest):
                     msg = '"' + guest + '": Not a running process'
                     continue
                 pid = int(guest)
diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
index f8cc38afffa2..32a194e3e07a 100755
--- a/tools/testing/selftests/net/pmtu.sh
+++ b/tools/testing/selftests/net/pmtu.sh
@@ -46,6 +46,9 @@
 # Kselftest framework requirement - SKIP code is 4.
 ksft_skip=4
 
+# Some systems don't have a ping6 binary anymore
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
 tests="
         pmtu_vti6_exception             vti6: PMTU exceptions
         pmtu_vti4_exception             vti4: PMTU exceptions
@@ -274,7 +277,7 @@ test_pmtu_vti6_exception() {
         mtu "${ns_b}" veth_b 4000
         mtu "${ns_a}" vti6_a 5000
         mtu "${ns_b}" vti6_b 5000
-        ${ns_a} ping6 -q -i 0.1 -w 2 -s 60000 ${vti6_b_addr} > /dev/null
+        ${ns_a} ${ping6} -q -i 0.1 -w 2 -s 60000 ${vti6_b_addr} > /dev/null
 
         # Check that exception was created
         if [ "$(route_get_dst_pmtu_from_exception "${ns_a}" ${vti6_b_addr})" = "" ]; then
@@ -334,7 +337,7 @@ test_pmtu_vti4_link_add_mtu() {
         fail=0
 
         min=68
-        max=$((65528 - 20))
+        max=$((65535 - 20))
         # Check invalid values first
         for v in $((min - 1)) $((max + 1)); do
                 ${ns_a} ip link add vti4_a mtu ${v} type vti local ${veth4_a_addr} remote ${veth4_b_addr} key 10 2>/dev/null
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/police.json b/tools/testing/selftests/tc-testing/tc-tests/actions/police.json
index f03763d81617..30f9b54bd666 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/actions/police.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/police.json
@@ -313,6 +313,54 @@
         ]
     },
     {
+        "id": "6aaf",
+        "name": "Add police actions with conform-exceed control pass/pipe [with numeric values]",
+        "category": [
+            "actions",
+            "police"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action police",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action police rate 3mbit burst 250k conform-exceed 0/3 index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action police index 1",
+        "matchPattern": "action order [0-9]*:  police 0x1 rate 3Mbit burst 250Kb mtu 2Kb action pass/pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action police"
+        ]
+    },
+    {
+        "id": "29b1",
+        "name": "Add police actions with conform-exceed control <invalid>/drop",
+        "category": [
+            "actions",
+            "police"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action police",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action police rate 3mbit burst 250k conform-exceed 10/drop index 1",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions ls action police",
+        "matchPattern": "action order [0-9]*:  police 0x1 rate 3Mbit burst 250Kb mtu 2Kb action ",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action police"
+        ]
+    },
+    {
         "id": "c26f",
         "name": "Add police action with invalid peakrate value",
         "category": [
diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c
index 30cb0a0713ff..37908a83ddc2 100644
--- a/tools/vm/page-types.c
+++ b/tools/vm/page-types.c
@@ -159,12 +159,6 @@ static const char * const page_flag_names[] = {
 };
 
 
-static const char * const debugfs_known_mountpoints[] = {
-        "/sys/kernel/debug",
-        "/debug",
-        0,
-};
-
 /*
  * data structures
  */
diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index f82c2eaa859d..334b16db0ebb 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -30,8 +30,8 @@ struct slabinfo {
         int alias;
         int refs;
         int aliases, align, cache_dma, cpu_slabs, destroy_by_rcu;
-        int hwcache_align, object_size, objs_per_slab;
-        int sanity_checks, slab_size, store_user, trace;
+        unsigned int hwcache_align, object_size, objs_per_slab;
+        unsigned int sanity_checks, slab_size, store_user, trace;
         int order, poison, reclaim_account, red_zone;
         unsigned long partial, objects, slabs, objects_partial, objects_total;
         unsigned long alloc_fastpath, alloc_slowpath;
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 91aaf73b00df..ed162a6c57c5 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -1817,18 +1817,6 @@ static int kvm_unmap_hva_handler(struct kvm *kvm, gpa_t gpa, u64 size, void *dat
         return 0;
 }
 
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
-{
-        unsigned long end = hva + PAGE_SIZE;
-
-        if (!kvm->arch.pgd)
-                return 0;
-
-        trace_kvm_unmap_hva(hva);
-        handle_hva_to_gpa(kvm, hva, end, &kvm_unmap_hva_handler, NULL);
-        return 0;
-}
-
 int kvm_unmap_hva_range(struct kvm *kvm,
                         unsigned long start, unsigned long end)
 {
@@ -1860,13 +1848,20 @@ static int kvm_set_spte_handler(struct kvm *kvm, gpa_t gpa, u64 size, void *data
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
 {
         unsigned long end = hva + PAGE_SIZE;
+        kvm_pfn_t pfn = pte_pfn(pte);
         pte_t stage2_pte;
 
         if (!kvm->arch.pgd)
                 return;
 
         trace_kvm_set_spte_hva(hva);
-        stage2_pte = pfn_pte(pte_pfn(pte), PAGE_S2);
+
+        /*
+         * We've moved a page around, probably through CoW, so let's treat it
+         * just like a translation fault and clean the cache to the PoC.
+         */
+        clean_dcache_guest_page(pfn, PAGE_SIZE);
+        stage2_pte = pfn_pte(pfn, PAGE_S2);
         handle_hva_to_gpa(kvm, hva, end, &kvm_set_spte_handler, &stage2_pte);
 }
 
diff --git a/virt/kvm/arm/trace.h b/virt/kvm/arm/trace.h
index e53b596f483b..57b3edebbb40 100644
--- a/virt/kvm/arm/trace.h
+++ b/virt/kvm/arm/trace.h
@@ -134,21 +134,6 @@ TRACE_EVENT(kvm_mmio_emulate,
                   __entry->vcpu_pc, __entry->instr, __entry->cpsr)
 );
 
-TRACE_EVENT(kvm_unmap_hva,
-        TP_PROTO(unsigned long hva),
-        TP_ARGS(hva),
-
-        TP_STRUCT__entry(
-                __field(        unsigned long,  hva             )
-        ),
-
-        TP_fast_assign(
-                __entry->hva            = hva;
-        ),
-
-        TP_printk("mmu notifier unmap hva: %#08lx", __entry->hva)
-);
-
 TRACE_EVENT(kvm_unmap_hva_range,
         TP_PROTO(unsigned long start, unsigned long end),
         TP_ARGS(start, end),