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4 years agoMerge tag 'sunxi-fixes-for-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Arnd Bergmann [Fri, 15 May 2020 21:13:45 +0000 (23:13 +0200)]
Merge tag 'sunxi-fixes-for-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes

Two fixes for the Allwinner SoCs, one to remove some inexistant sound card on
the A64, and one to fix the audio codec regulator on the pinetab.

* tag 'sunxi-fixes-for-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  arm64: dts: allwinner: a64: Remove unused SPDIF sound card
  arm64: dts: allwinner: a64: pinetab: Fix cpvdd supply name

Link: https://lore.kernel.org/r/f7a98a47-316d-4b1a-b5a5-0e1e330d5f52.lettre@localhost
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoarm64: defconfig: add MEDIA_PLATFORM_SUPPORT
Max Krummenacher [Mon, 27 Apr 2020 13:40:02 +0000 (15:40 +0200)]
arm64: defconfig: add MEDIA_PLATFORM_SUPPORT

Commit 06b93644f4d1 ("media: Kconfig: add an option to filter in/out
platform drivers") adds a new Kconfig symbol which now hides drivers
currently enabled in the arm64 defconfig. Enable it to get those
drivers back.

Link: https://lore.kernel.org/r/20200427134003.45188-5-max.krummenacher@toradex.com
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoarm64: defconfig: ARCH_R8A7795: follow changed config symbol name
Max Krummenacher [Mon, 27 Apr 2020 13:40:01 +0000 (15:40 +0200)]
arm64: defconfig: ARCH_R8A7795: follow changed config symbol name

Completes commit fa9489c8922b ("soc: renesas: Add ARCH_R8A7795[01] for
existing R-Car H3") and commit 691b1272379f ("arm64: dts: renesas:
Remove use of ARCH_R8A7795").

CONFIG_ARCH_R8A7795 was split in CONFIG_ARCH_R8A77950 and
CONFIG_ARCH_R8A77951.

Link: https://lore.kernel.org/r/20200427134003.45188-4-max.krummenacher@toradex.com
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoarm64: defconfig: add DRM_DISPLAY_CONNECTOR
Max Krummenacher [Mon, 27 Apr 2020 13:40:00 +0000 (15:40 +0200)]
arm64: defconfig: add DRM_DISPLAY_CONNECTOR

Add DRM_DISPLAY_CONNECTOR. This got introduced with the bridge rework
Which renamed among others DRM_DUMB_VGA_DAC.

Link: https://lore.kernel.org/r/20200427134003.45188-3-max.krummenacher@toradex.com
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoarm64: defconfig: DRM_DUMB_VGA_DAC: follow changed config symbol name
Max Krummenacher [Mon, 27 Apr 2020 13:39:59 +0000 (15:39 +0200)]
arm64: defconfig: DRM_DUMB_VGA_DAC: follow changed config symbol name

This occurrence wasn't changed in the original rename commit.

Fixes commit d690e54d6a689 ("drm/bridge: dumb-vga-dac: Rename driver to
simple-bridge").

Link: https://lore.kernel.org/r/20200427134003.45188-2-max.krummenacher@toradex.com
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoMerge tag 'arm-soc-fixes-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git...
Arnd Bergmann [Wed, 13 May 2020 22:08:06 +0000 (00:08 +0200)]
Merge tag 'arm-soc-fixes-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas into arm/fixes

- mach-oxnas: make ox820_boot_secondary static to fix sparse warning

* tag 'arm-soc-fixes-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas:
  ARM: oxnas: make ox820_boot_secondary static

Link: https://lore.kernel.org/r/95bf4813-93a1-735d-1d27-2cbe59986845@baylibre.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoMerge tag 'amlogic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman...
Arnd Bergmann [Wed, 13 May 2020 22:07:35 +0000 (00:07 +0200)]
Merge tag 'amlogic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/fixes

arm64: dts: fixes for v5.7-rc

Misc arm64 DT-only fixes

* tag 'amlogic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  arm64: dts: meson-g12: remove spurious blank line
  arm64: dts: meson-g12b-khadas-vim3: add missing frddr_a status property
  arm64: dts: meson-g12-common: fix dwc2 clock names
  arm64: dts: meson-g12b-ugoos-am6: fix usb vbus-supply

Link: https://lore.kernel.org/r/7hmu6iyoc5.fsf@baylibre.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoMerge tag 'omap-for-v5.6/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Wed, 13 May 2020 22:06:43 +0000 (00:06 +0200)]
Merge tag 'omap-for-v5.6/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes

Fixes for omaps for v5.6-rc cycle

Few device tree fixes for various devices:

- A regression fix for non-existing can device on am534x-idk

- Fix missing dma-ranges for dra7 pcie

- Fix flakey wlan on droid4 where some devices would not connect
  at all because of internal pull being used with an external pull

- Fix occasional missed wake-up events on droid4 modem uart

* tag 'omap-for-v5.6/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap4-droid4: Fix occasional lost wakeirq for uart1
  ARM: dts: omap4-droid4: Fix flakey wlan by disabling internal pull for gpio
  ARM: dts: dra7: Fix bus_dma_limit for PCIe
  ARM: dts: am574x-idk: Disable m_can node

Link: https://lore.kernel.org/r/pull-1588872844-804667@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoMerge tag 'v5.7-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Wed, 13 May 2020 22:02:55 +0000 (00:02 +0200)]
Merge tag 'v5.7-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes

Some fixes for the newly added Pinebook Pro and other fixes to
make dtc and the new dtscheck against yaml bindings happy.

* tag 'v5.7-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: dts: rockchip: fix pinctrl sub nodename for spi in rk322x.dtsi
  arm64: dts: rockchip: Fix Pinebook Pro FUSB302 interrupt
  ARM: dts: rockchip: swap clock-names of gpu nodes
  arm64: dts: rockchip: swap interrupts interrupt-names rk3399 gpu node
  arm64: dts: rockchip: fix status for &gmac2phy in rk3328-evb.dts
  arm64: dts: rockchip: remove extra assigned-clocks property from &gmac2phy node in rk3328-evb.dts
  ARM: dts: rockchip: fix phy nodename for rk3229-xms6
  ARM: dts: rockchip: fix phy nodename for rk3228-evb
  arm64: dts: rockchip: Rename dwc3 device nodes on rk3399 to make dtc happy
  arm64: dts: rockchip: drop #address-cells, #size-cells from rk3399 pmugrf node
  arm64: dts: rockchip: drop #address-cells, #size-cells from rk3328 grf node
  arm64: dts: rockchip: drop non-existent gmac2phy pinmux options from rk3328
  arm64: dts: rockchip: Replace RK805 PMIC node name with "pmic" on rk3328 boards
  arm64: dts: rockchip: enable DC charger detection pullup on Pinebook Pro
  arm64: dts: rockchip: fix inverted headphone detection on Pinebook Pro
  arm64: dts: rockchip: Correct PMU compatibles for PX30 and RK3308

Link: https://lore.kernel.org/r/1738941.6LdaBJIBqS@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoMerge tag 'tegra-for-5.7-arm64-defconfig-fixes' of git://git.kernel.org/pub/scm/linux...
Arnd Bergmann [Wed, 13 May 2020 22:01:43 +0000 (00:01 +0200)]
Merge tag 'tegra-for-5.7-arm64-defconfig-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/fixes

arm64: tegra: Default configuration fixes

This contains a single fix to reenable the Tegra194 PCIe host support by
default that was inadvertently dropped as a result of the host/endpoint
mode support that was added in v5.7-rc1.

* tag 'tegra-for-5.7-arm64-defconfig-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  arm64: defconfig: Re-enable Tegra PCIe host driver

Link: https://lore.kernel.org/r/20200430105700.167199-1-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoMerge tag 'renesas-fixes-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Wed, 13 May 2020 22:01:06 +0000 (00:01 +0200)]
Merge tag 'renesas-fixes-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/fixes

Renesas fixes for v5.7

  - Fix IOMMU support on R-Car V3H,
  - Minor fixes that are fast-tracked to avoid introducing regressions
    during conversion of DT bindings to json-schema.

* tag 'renesas-fixes-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  ARM: dts: r7s9210: Remove bogus clock-names from OSTM nodes
  arm64: dts: renesas: r8a77980: Fix IPMMU VIP[01] nodes
  ARM: dts: r8a73a4: Add missing CMT1 interrupts

Link: https://lore.kernel.org/r/20200430084834.1384-1-geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoMerge tag 'imx-fixes-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo...
Arnd Bergmann [Wed, 13 May 2020 22:00:06 +0000 (00:00 +0200)]
Merge tag 'imx-fixes-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes

i.MX fixes for 5.7:

 - Set correct AHB clock for i.MX8MN SDMA1 device to fix a "Timeout
   waiting for CH0" error.
 - Fix a linker error for i.MX6 configurations that have ARM_CPU_SUSPEND=n,
   which can happen if neither CONFIG_PM, CONFIG_CPU_IDLE, nor ARM_PSCI_FW
   are selected.
 - Fix I2C1 pinctrl configuration for i.MX27 phytec-phycard board.
 - Fix i.MX8M  AIPS 'reg' properties to remove DTC simple_bus_reg
   warnings.
 - Add missing compatible "fsl,vf610-edma" for LS1028A EDMA device, so
   that bootloader can fix up the IOMMU entries there.  Otherwise, EDMA
   just doesn't work on LS1028A with shipped bootloader.
 - Fix imx6dl-yapp4-ursa board Ethernet connection.
 - Fix input_val for AUDIOMIX_BIT_STREAM pinctrl defines on i.MX8MP
   according to Reference Manual.

* tag 'imx-fixes-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  arm64: dts: freescale: imx8mp: update input_val for AUDIOMIX_BIT_STREAM
  arm64: dts: imx8m: Fix AIPS reg properties
  arm64: dts: imx8mn: Change SDMA1 ahb clock for imx8mn
  ARM: dts: imx27-phytec-phycard-s-rdk: Fix the I2C1 pinctrl entries
  ARM: imx: provide v7_cpu_resume() only on ARM_CPU_SUSPEND=y
  ARM: dts: imx6dl-yapp4: Fix Ursa board Ethernet connection
  arm64: dts: ls1028a: add "fsl,vf610-edma" compatible
  dt-bindings: dma: fsl-edma: fix ls1028a-edma compatible

Link: https://lore.kernel.org/r/20200429063226.GT32592@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoMerge tag 'qcom-arm64-fixes-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Wed, 13 May 2020 21:59:57 +0000 (23:59 +0200)]
Merge tag 'qcom-arm64-fixes-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes

Qualcomm ARM64 DT fixes for v5.7

This reduces the (hard coded) CPU voltage to a safe level on MSM8996 and
updates the audio nodes on db820c, db845c and c630 to reflect audio
changes that landed late in the cycle.

* tag 'qcom-arm64-fixes-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  arm64: dts: qcom: db820c: fix audio configuration
  arm64: dts: qcom: db845c: fix asm dai setup
  arm64: qcom: c630: fix asm dai setup
  arm64: dts: qcom: msm8996: Reduce vdd_apc voltage

Link: https://lore.kernel.org/r/20200429052932.GA2627045@builder.lan
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoARM: oxnas: make ox820_boot_secondary static
Ma Feng [Tue, 12 May 2020 01:46:13 +0000 (09:46 +0800)]
ARM: oxnas: make ox820_boot_secondary static

Fix sparse warning:

arch/arm/mach-oxnas/platsmp.c:30:12: warning: symbol 'ox820_boot_secondary' was
not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ma Feng <mafeng.ma@huawei.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Fixes: 354b36b96f5e ("ARM: oxnas: Add OX820 SMP support")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/1589247973-29728-1-git-send-email-mafeng.ma@huawei.com
4 years agoARM: dts: omap4-droid4: Fix occasional lost wakeirq for uart1
Tony Lindgren [Thu, 30 Apr 2020 16:52:33 +0000 (09:52 -0700)]
ARM: dts: omap4-droid4: Fix occasional lost wakeirq for uart1

Looks like using the UART CTS pin does not always trigger for a wake-up
when the SoC is idle.

This is probably because the modem first uses gpio_149 to signal the SoC
that data will be sent, and the CTS will only get used later when the
data transfer is starting.

Let's fix the issue by configuring the gpio_149 pad as the wakeirq for
UART. We have gpio_149 managed by the USB PHY for powering up the right
USB mode, and after that, the gpio gets recycled as the modem wake-up
pin. If needeed, the USB PHY can also later on be configured to use
gpio_149 pad as the wakeirq as a shared irq.

Let's also configure the missing properties for uart-has-rtscts and
current-speed for the modem port while at it. We already configure the
hardware flow control pins with uart1_pins pinctrl setting.

Cc: maemo-leste@lists.dyne.org
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
4 years agoARM: dts: omap4-droid4: Fix flakey wlan by disabling internal pull for gpio
Tony Lindgren [Sat, 18 Apr 2020 17:52:48 +0000 (10:52 -0700)]
ARM: dts: omap4-droid4: Fix flakey wlan by disabling internal pull for gpio

The wlan on droid4 is flakey on some devices, and experiments have shown this
gets fixed if we disable the internal pull for wlan gpio interrupt line.

The symptoms are that the wlan connection is very slow and almost useless
with lots of wlcore firmware reboot warnings in the dmesg.

In addition to configuring the wlan gpio pulls, let's also configure the rest
of the wlan sd pins. We have not configured those eariler as we're booting
using kexec.

Signed-off-by: Tony Lindgren <tony@atomide.com>
4 years agoarm64: dts: allwinner: a64: Remove unused SPDIF sound card
Samuel Holland [Sun, 26 Apr 2020 16:16:05 +0000 (11:16 -0500)]
arm64: dts: allwinner: a64: Remove unused SPDIF sound card

As of v5.7-rc2, Linux now prints the following message at boot:

  [   33.848525] platform sound_spdif: deferred probe pending

This is because sound_spdif is waiting on its CPU DAI &spdif to probe,
but &spdif is disabled in the device tree.

Exposure of the SPDIF pin is board-specific functionality, so the sound
card and codec DAI belong in the individual board DTS, not the SoC DTSI.
In fact, no in-tree A64 board DTS enables &spdif, so let's remove the
card and DAI entirely.

This reverts commit d18530114708e74a2104a0226f530cc884e84dca.

Acked-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
4 years agoarm64: dts: allwinner: a64: pinetab: Fix cpvdd supply name
Samuel Holland [Sun, 26 Apr 2020 16:23:53 +0000 (11:23 -0500)]
arm64: dts: allwinner: a64: pinetab: Fix cpvdd supply name

An older version of the analog codec binding referenced the headphone
amplifier binding as "hpvcc". However, by the time it was merged in
commit daed8a56a3c0 ("ASoC: dt-bindings: sun50i-codec-analog: Add
headphone amp regulator supply"), the regulator reference was renamed to
"cpvdd". This board's device tree still uses the old name, which fails
to work at runtime, and which causes a warning from `make dtbs_check`.
Resolve both by fixing the name.

Fixes: 4912b79e7c3b ("arm64: dts: allwinner: a64: add support for PineTab")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
4 years agoLinux 5.7-rc4
Linus Torvalds [Sun, 3 May 2020 21:56:04 +0000 (14:56 -0700)]
Linux 5.7-rc4

4 years agoMerge tag 'for-5.7-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sun, 3 May 2020 18:30:08 +0000 (11:30 -0700)]
Merge tag 'for-5.7-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull more btrfs fixes from David Sterba:
 "A few more stability fixes, minor build warning fixes and git url
  fixup:

   - fix partial loss of prealloc extent past i_size after fsync

   - fix potential deadlock due to wrong transaction handle passing via
     journal_info

   - fix gcc 4.8 struct intialization warning

   - update git URL in MAINTAINERS entry"

* tag 'for-5.7-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  MAINTAINERS: btrfs: fix git repo URL
  btrfs: fix gcc-4.8 build warning for struct initializer
  btrfs: transaction: Avoid deadlock due to bad initialization timing of fs_info::journal_info
  btrfs: fix partial loss of prealloc extent past i_size after fsync

4 years agoMerge tag 'iommu-fixes-v5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 3 May 2020 18:04:57 +0000 (11:04 -0700)]
Merge tag 'iommu-fixes-v5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:

 - Fix a memory leak when dev_iommu gets freed and a sub-pointer does
   not

 - Build dependency fixes for Mediatek, spapr_tce, and Intel IOMMU
   driver

 - Export iommu_group_get_for_dev() only for GPLed modules

 - Fix AMD IOMMU interrupt remapping when x2apic is enabled

 - Fix error path in the QCOM IOMMU driver probe function

* tag 'iommu-fixes-v5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/qcom: Fix local_base status check
  iommu: Properly export iommu_group_get_for_dev()
  iommu/vt-d: Use right Kconfig option name
  iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system
  iommu: spapr_tce: Disable compile testing to fix build on book3s_32 config
  iommu/mediatek: Fix MTK_IOMMU dependencies
  iommu: Fix the memory leak in dev_iommu_free()

4 years agoMAINTAINERS: btrfs: fix git repo URL
Eric Biggers [Fri, 1 May 2020 23:44:17 +0000 (16:44 -0700)]
MAINTAINERS: btrfs: fix git repo URL

The git repo listed for btrfs hasn't been updated in over a year.
List the current one instead.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
4 years agoMerge tag 'pm-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Sat, 2 May 2020 20:45:30 +0000 (13:45 -0700)]
Merge tag 'pm-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:

 - prevent the intel_pstate driver from printing excessive diagnostic
   messages in some cases (Chris Wilson)

 - make the hibernation restore kernel freeze kernel threads as well as
   user space tasks (Dexuan Cui)

 - fix the ACPI device PM disagnostic messages to include the correct
   power state name (Kai-Heng Feng).

* tag 'pm-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: ACPI: Output correct message on target power state
  PM: hibernate: Freeze kernel threads in software_resume()
  cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once

4 years agoMerge branches 'pm-cpufreq' and 'pm-sleep'
Rafael J. Wysocki [Sat, 2 May 2020 19:39:17 +0000 (21:39 +0200)]
Merge branches 'pm-cpufreq' and 'pm-sleep'

* pm-cpufreq:
  cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once

* pm-sleep:
  PM: hibernate: Freeze kernel threads in software_resume()

4 years agoMerge tag 'iomap-5.7-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Sat, 2 May 2020 18:31:12 +0000 (11:31 -0700)]
Merge tag 'iomap-5.7-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull iomap fix from Darrick Wong:
 "Hoist the check for an unrepresentable FIBMAP return value into
  ioctl_fibmap.

  The internal kernel function can handle 64-bit values (and is needed
  to fix a regression on ext4 + jbd2). It is only the userspace ioctl
  that is so old that it cannot deal"

* tag 'iomap-5.7-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  fibmap: Warn and return an error in case of block > INT_MAX

4 years agoMerge tag 'nfs-for-5.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Sat, 2 May 2020 18:24:01 +0000 (11:24 -0700)]
Merge tag 'nfs-for-5.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

  Stable fixes:
   - fix handling of backchannel binding in BIND_CONN_TO_SESSION

  Bugfixes:
   - Fix a credential use-after-free issue in pnfs_roc()
   - Fix potential posix_acl refcnt leak in nfs3_set_acl
   - defer slow parts of rpc_free_client() to a workqueue
   - Fix an Oopsable race in __nfs_list_for_each_server()
   - Fix trace point use-after-free race
   - Regression: the RDMA client no longer responds to server disconnect
     requests
   - Fix return values of xdr_stream_encode_item_{present, absent}
   - _pnfs_return_layout() must always wait for layoutreturn completion

  Cleanups:
   - Remove unreachable error conditions"

* tag 'nfs-for-5.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Fix a race in __nfs_list_for_each_server()
  NFSv4.1: fix handling of backchannel binding in BIND_CONN_TO_SESSION
  SUNRPC: defer slow parts of rpc_free_client() to a workqueue.
  NFSv4: Remove unreachable error condition due to rpc_run_task()
  SUNRPC: Remove unreachable error condition
  xprtrdma: Fix use of xdr_stream_encode_item_{present, absent}
  xprtrdma: Fix trace point use-after-free race
  xprtrdma: Restore wake-up-all to rpcrdma_cm_event_handler()
  nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl
  NFS/pnfs: Fix a credential use-after-free issue in pnfs_roc()
  NFS/pnfs: Ensure that _pnfs_return_layout() waits for layoutreturn completion

4 years agoMerge tag 'dmaengine-fix-5.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sat, 2 May 2020 18:16:14 +0000 (11:16 -0700)]
Merge tag 'dmaengine-fix-5.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "Core:
   - Documentation typo fixes
   - fix the channel indexes
   - dmatest: fixes for process hang and iterations

  Drivers:
   - hisilicon: build error fix without PCI_MSI
   - ti-k3: deadlock fix
   - uniphier-xdmac: fix for reg region
   - pch: fix data race
   - tegra: fix clock state"

* tag 'dmaengine-fix-5.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: dmatest: Fix process hang when reading 'wait' parameter
  dmaengine: dmatest: Fix iteration non-stop logic
  dmaengine: tegra-apb: Ensure that clock is enabled during of DMA synchronization
  dmaengine: fix channel index enumeration
  dmaengine: mmp_tdma: Reset channel error on release
  dmaengine: mmp_tdma: Do not ignore slave config validation errors
  dmaengine: pch_dma.c: Avoid data race between probe and irq handler
  dt-bindings: dma: uniphier-xdmac: switch to single reg region
  include/linux/dmaengine: Typos fixes in API documentation
  dmaengine: xilinx_dma: Add missing check for empty list
  dmaengine: ti: k3-psil: fix deadlock on error path
  dmaengine: hisilicon: Fix build error without PCI_MSI

4 years agoMerge tag 'vfio-v5.7-rc4' of git://github.com/awilliam/linux-vfio
Linus Torvalds [Sat, 2 May 2020 00:19:15 +0000 (17:19 -0700)]
Merge tag 'vfio-v5.7-rc4' of git://github.com/awilliam/linux-vfio

Pull VFIO fixes from Alex Williamson:

 - copy_*_user validity check for new vfio_dma_rw interface (Yan Zhao)

 - Fix a potential math overflow (Yan Zhao)

 - Use follow_pfn() for calculating PFNMAPs (Sean Christopherson)

* tag 'vfio-v5.7-rc4' of git://github.com/awilliam/linux-vfio:
  vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn()
  vfio: avoid possible overflow in vfio_iommu_type1_pin_pages
  vfio: checking of validity of user vaddr in vfio_dma_rw

4 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Sat, 2 May 2020 00:09:31 +0000 (17:09 -0700)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Add -fasynchronous-unwind-tables to the vDSO CFLAGS"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: vdso: Add -fasynchronous-unwind-tables to cflags

4 years agoMerge tag 'io_uring-5.7-2020-05-01' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 2 May 2020 00:03:06 +0000 (17:03 -0700)]
Merge tag 'io_uring-5.7-2020-05-01' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:

 - Fix for statx not grabbing the file table, making AT_EMPTY_PATH fail

 - Cover a few cases where async poll can handle retry, eliminating the
   need for an async thread

 - fallback request busy/free fix (Bijan)

 - syzbot reported SQPOLL thread exit fix for non-preempt (Xiaoguang)

 - Fix extra put of req for sync_file_range (Pavel)

 - Always punt splice async. We'll improve this for 5.8, but wanted to
   eliminate the inode mutex lock from the non-blocking path for 5.7
   (Pavel)

* tag 'io_uring-5.7-2020-05-01' of git://git.kernel.dk/linux-block:
  io_uring: punt splice async because of inode mutex
  io_uring: check non-sync defer_list carefully
  io_uring: fix extra put in sync_file_range()
  io_uring: use cond_resched() in io_ring_ctx_wait_and_kill()
  io_uring: use proper references for fallback_req locking
  io_uring: only force async punt if poll based retry can't handle it
  io_uring: enable poll retry for any file with ->read_iter / ->write_iter
  io_uring: statx must grab the file table for valid fd

4 years agoMerge tag 'block-5.7-2020-05-01' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 1 May 2020 18:13:36 +0000 (11:13 -0700)]
Merge tag 'block-5.7-2020-05-01' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few fixes for this release:

   - NVMe pull request from Christoph, with a single fix for a double
     free in the namespace error handling.

   - Kill the bd_openers check in blk_drop_partitions(), fixing a
     regression in this merge window (Christoph)"

* tag 'block-5.7-2020-05-01' of git://git.kernel.dk/linux-block:
  block: remove the bd_openers checks in blk_drop_partitions
  nvme: prevent double free in nvme_alloc_ns() error handling

4 years agoMerge branch 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 1 May 2020 18:10:09 +0000 (11:10 -0700)]
Merge branch 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Three driver bugfixes, and two reverts because the original patches
  revealed underlying problems which the Tegra guys are now working on"

* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: aspeed: Avoid i2c interrupt status clear race condition.
  i2c: amd-mp2-pci: Fix Oops in amd_mp2_pci_init() error handling
  Revert "i2c: tegra: Better handle case where CPU0 is busy for a long time"
  Revert "i2c: tegra: Synchronize DMA before termination"
  i2c: iproc: generate stop event for slave writes

4 years agoMerge tag 'sound-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 1 May 2020 18:05:28 +0000 (11:05 -0700)]
Merge tag 'sound-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Just a collection of small fixes around this time:

   - One more try for fixing PCM OSS regression

   - HD-audio: a new quirk for Lenovo, the improved driver blacklisting,
     a lock fix in the minor error path, and a fix for the possible race
     at monitor notifiaction

   - USB-audio: a quirk ID fix, a fix for POD HD500 workaround"

* tag 'sound-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Correct a typo of NuPrime DAC-10 USB ID
  ALSA: opti9xx: shut up gcc-10 range warning
  ALSA: hda/hdmi: fix without unlocked before return
  ALSA: hda/hdmi: fix race in monitor detection during probe
  ALSA: hda/realtek - Two front mics on a Lenovo ThinkCenter
  ALSA: line6: Fix POD HD500 audio playback
  ALSA: pcm: oss: Place the plugin buffer overflow checks correctly (for 5.7)
  ALSA: pcm: oss: Place the plugin buffer overflow checks correctly
  ALSA: hda: Match both PCI ID and SSID for driver blacklist

4 years agoMerge tag 'drm-fixes-2020-05-01' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 1 May 2020 18:01:51 +0000 (11:01 -0700)]
Merge tag 'drm-fixes-2020-05-01' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular scheduled fixes for graphics. Nothing to extreme bunch of
  amdgpu fixes, i915 and qxl fixes, along with some misc ones.

  All seems to be progressing normally.

  core:
   - EDID off by one DTD fix
   - DP mst write return code fix

  dma-buf:
   - fix SET_NAME ioctl uapi
   - doc fixes

  amdgpu:
   - Fix a green screen on resume issue
   - PM fixes for SR-IOV SDMA fix for navi
   - Renoir display fixes
   - Cursor and pageflip stuttering fixes
   - Misc additional display fixes
   - (uapi) Add additional DCC tiling flags for navi1x

  i915:
   - Fix selftest refcnt leak (Xiyu)
   - Fix gem vma lock (Chris)
   - Fix gt's i915_request.timeline acquire by checking if cacheline is
     valid (Chris)
   - Fix IRQ postinistall fault masks (Matt)

  qxl:
   - use after gree fix
   - fix lost kunmap
   - release leak fix

  virtio:
   - context destruction fix"

* tag 'drm-fixes-2020-05-01' of git://anongit.freedesktop.org/drm/drm: (26 commits)
  dma-buf: fix documentation build warnings
  drm/qxl: qxl_release use after free
  drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper()
  drm/i915: Use proper fault mask in interrupt postinstall too
  drm/amd/display: Use cursor locking to prevent flip delays
  drm/amd/display: Update downspread percent to match spreadsheet for DCN2.1
  drm/amd/display: Defer cursor update around VUPDATE for all ASIC
  drm/amd/display: fix rn soc bb update
  drm/amd/display: check if REFCLK_CNTL register is present
  drm/amdgpu: bump version for invalidate L2 before SDMA IBs
  drm/amdgpu: invalidate L2 before SDMA IBs (v2)
  drm/amdgpu: add tiling flags from Mesa
  drm/amd/powerplay: avoid using pm_en before it is initialized revised
  Revert "drm/amd/powerplay: avoid using pm_en before it is initialized"
  drm/qxl: qxl_release leak in qxl_hw_surface_alloc()
  drm/qxl: qxl_release leak in qxl_draw_dirty_fb()
  drm/virtio: only destroy created contexts
  drm/dp_mst: Fix drm_dp_send_dpcd_write() return code
  drm/i915/gt: Check cacheline is valid before acquiring
  drm/i915/gem: Hold obj->vma.lock over for_each_ggtt_vma()
  ...

4 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Fri, 1 May 2020 18:00:07 +0000 (11:00 -0700)]
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Four minor fixes: three in drivers and one in the core.

  The core one allows an additional state change that fixes a regression
  introduced by an update to the aacraid driver in the previous merge
  window"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: target/iblock: fix WRITE SAME zeroing
  scsi: qla2xxx: check UNLOADING before posting async work
  scsi: qla2xxx: set UNLOADING before waiting for session deletion
  scsi: core: Allow the state change from SDEV_QUIESCE to SDEV_BLOCK

4 years agoio_uring: punt splice async because of inode mutex
Pavel Begunkov [Fri, 1 May 2020 14:09:38 +0000 (17:09 +0300)]
io_uring: punt splice async because of inode mutex

Nonblocking do_splice() still may wait for some time on an inode mutex.
Let's play safe and always punt it async.

Reported-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: check non-sync defer_list carefully
Pavel Begunkov [Fri, 1 May 2020 14:09:37 +0000 (17:09 +0300)]
io_uring: check non-sync defer_list carefully

io_req_defer() do double-checked locking. Use proper helpers for that,
i.e. list_empty_careful().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: fix extra put in sync_file_range()
Pavel Begunkov [Fri, 1 May 2020 14:09:36 +0000 (17:09 +0300)]
io_uring: fix extra put in sync_file_range()

[   40.179474] refcount_t: underflow; use-after-free.
[   40.179499] WARNING: CPU: 6 PID: 1848 at lib/refcount.c:28 refcount_warn_saturate+0xae/0xf0
...
[   40.179612] RIP: 0010:refcount_warn_saturate+0xae/0xf0
[   40.179617] Code: 28 44 0a 01 01 e8 d7 01 c2 ff 0f 0b 5d c3 80 3d 15 44 0a 01 00 75 91 48 c7 c7 b8 f5 75 be c6 05 05 44 0a 01 01 e8 b7 01 c2 ff <0f> 0b 5d c3 80 3d f3 43 0a 01 00 0f 85 6d ff ff ff 48 c7 c7 10 f6
[   40.179619] RSP: 0018:ffffb252423ebe18 EFLAGS: 00010286
[   40.179623] RAX: 0000000000000000 RBX: ffff98d65e929400 RCX: 0000000000000000
[   40.179625] RDX: 0000000000000001 RSI: 0000000000000086 RDI: 00000000ffffffff
[   40.179627] RBP: ffffb252423ebe18 R08: 0000000000000001 R09: 000000000000055d
[   40.179629] R10: 0000000000000c8c R11: 0000000000000001 R12: 0000000000000000
[   40.179631] R13: ffff98d68c434400 R14: ffff98d6a9cbaa20 R15: ffff98d6a609ccb8
[   40.179634] FS:  0000000000000000(0000) GS:ffff98d6af580000(0000) knlGS:0000000000000000
[   40.179636] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.179638] CR2: 00000000033e3194 CR3: 000000006480a003 CR4: 00000000003606e0
[   40.179641] Call Trace:
[   40.179652]  io_put_req+0x36/0x40
[   40.179657]  io_free_work+0x15/0x20
[   40.179661]  io_worker_handle_work+0x2f5/0x480
[   40.179667]  io_wqe_worker+0x2a9/0x360
[   40.179674]  ? _raw_spin_unlock_irqrestore+0x24/0x40
[   40.179681]  kthread+0x12c/0x170
[   40.179685]  ? io_worker_handle_work+0x480/0x480
[   40.179690]  ? kthread_park+0x90/0x90
[   40.179695]  ret_from_fork+0x35/0x40
[   40.179702] ---[ end trace 85027405f00110aa ]---

Opcode handler must never put submission ref, but that's what
io_sync_file_range_finish() do. use io_steal_work() there.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoiommu/qcom: Fix local_base status check
Tang Bin [Sat, 18 Apr 2020 13:47:03 +0000 (21:47 +0800)]
iommu/qcom: Fix local_base status check

The function qcom_iommu_device_probe() does not perform sufficient
error checking after executing devm_ioremap_resource(), which can
result in crashes if a critical error path is encountered.

Fixes: bfd180ff99ee ("iommu/qcom: Add qcom_iommu")
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200418134703.1760-1-tangbin@cmss.chinamobile.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
4 years agoiommu: Properly export iommu_group_get_for_dev()
Greg Kroah-Hartman [Thu, 30 Apr 2020 12:01:20 +0000 (14:01 +0200)]
iommu: Properly export iommu_group_get_for_dev()

In commit e12e22670e2b ("drivers/iommu: Export core IOMMU API symbols to
permit modular drivers") a bunch of iommu symbols were exported, all
with _GPL markings except iommu_group_get_for_dev().  That export should
also be _GPL like the others.

Fixes: e12e22670e2b ("drivers/iommu: Export core IOMMU API symbols to permit modular drivers")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Will Deacon <will@kernel.org>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: John Garry <john.garry@huawei.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200430120120.2948448-1-gregkh@linuxfoundation.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
4 years agoiommu/vt-d: Use right Kconfig option name
Lu Baolu [Fri, 1 May 2020 07:24:27 +0000 (15:24 +0800)]
iommu/vt-d: Use right Kconfig option name

The CONFIG_ prefix should be added in the code.

Fixes: e169e17c03488 ("iommu/vt-d: Add Kconfig option to enable/disable scalable mode")
Reported-and-tested-by: Kumar, Sanjay K <sanjay.k.kumar@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Link: https://lore.kernel.org/r/20200501072427.14265-1-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
4 years agoiommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system
Suravee Suthikulpanit [Wed, 22 Apr 2020 13:30:02 +0000 (08:30 -0500)]
iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system

Currently, system fails to boot because the legacy interrupt remapping
mode does not enable 128-bit IRTE (GA), which is required for x2APIC
support.

Fix by using AMD_IOMMU_GUEST_IR_LEGACY_GA mode when booting with
kernel option amd_iommu_intr=legacy instead. The initialization
logic will check GASup and automatically fallback to using
AMD_IOMMU_GUEST_IR_LEGACY if GA mode is not supported.

Fixes: 8357b010e1b2 ("iommu/amd: Detect and enable guest vAPIC support")
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/1587562202-14183-1-git-send-email-suravee.suthikulpanit@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
4 years agoio_uring: use cond_resched() in io_ring_ctx_wait_and_kill()
Xiaoguang Wang [Fri, 1 May 2020 00:52:56 +0000 (08:52 +0800)]
io_uring: use cond_resched() in io_ring_ctx_wait_and_kill()

While working on to make io_uring sqpoll mode support syscalls that need
struct files_struct, I got cpu soft lockup in io_ring_ctx_wait_and_kill(),

    while (ctx->sqo_thread && !wq_has_sleeper(&ctx->sqo_wait))
        cpu_relax();

above loop never has an chance to exit, it's because preempt isn't enabled
in the kernel, and the context calling io_ring_ctx_wait_and_kill() and
io_sq_thread() run in the same cpu, if io_sq_thread calls a cond_resched()
yield cpu and another context enters above loop, then io_sq_thread() will
always in runqueue and never exit.

Use cond_resched() can fix this issue.

Reported-by: syzbot+66243bb7126c410cefe6@syzkaller.appspotmail.com
Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: use proper references for fallback_req locking
Bijan Mottahedeh [Thu, 30 Apr 2020 00:47:50 +0000 (17:47 -0700)]
io_uring: use proper references for fallback_req locking

Use ctx->fallback_req address for test_and_set_bit_lock() and
clear_bit_unlock().

Signed-off-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: only force async punt if poll based retry can't handle it
Jens Axboe [Tue, 28 Apr 2020 19:16:53 +0000 (13:16 -0600)]
io_uring: only force async punt if poll based retry can't handle it

We do blocking retry from our poll handler, if the file supports polled
notifications. Only mark the request as needing an async worker if we
can't poll for it.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: enable poll retry for any file with ->read_iter / ->write_iter
Jens Axboe [Tue, 28 Apr 2020 19:15:06 +0000 (13:15 -0600)]
io_uring: enable poll retry for any file with ->read_iter / ->write_iter

We can have files like eventfd where it's perfectly fine to do poll
based retry on them, right now io_file_supports_async() doesn't take
that into account.

Pass in data direction and check the f_op instead of just always needing
an async worker.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoMerge tag 'amd-drm-fixes-5.7-2020-04-29' of git://people.freedesktop.org/~agd5f/linux...
Dave Airlie [Fri, 1 May 2020 01:19:54 +0000 (11:19 +1000)]
Merge tag 'amd-drm-fixes-5.7-2020-04-29' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

amd-drm-fixes-5.7-2020-04-29:

amdgpu:
- Fix a green screen on resume issue
- PM fixes for SR-IOV
- SDMA fix for navi
- Renoir display fixes
- Cursor and pageflip stuttering fixes
- Misc additional display fixes

UAPI:
- Add additional DCC tiling flags for navi1x
  Used by: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4697

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200429212008.4306-1-alexander.deucher@amd.com
4 years agoMerge tag 'drm-intel-fixes-2020-04-30' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Fri, 1 May 2020 00:56:13 +0000 (10:56 +1000)]
Merge tag 'drm-intel-fixes-2020-04-30' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix selftest refcnt leak (Xiyu)
- Fix gem vma lock (Chris)
- Fix gt's i915_request.timeline acquire by checking if cacheline is valid (Chris)
- Fix IRQ postinistall fault masks (Matt)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200430140042.GA270140@intel.com
4 years agoMerge tag 'drm-misc-fixes-2020-04-30' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Fri, 1 May 2020 00:41:59 +0000 (10:41 +1000)]
Merge tag 'drm-misc-fixes-2020-04-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

A few resources-related fixes for qxl, some doc build warnings and ioctl
fixes for dma-buf, an off-by-one fix in edid, and a return code fix in
DP-MST

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200430153201.wx6of2b2gsoip7bk@gilmour.lan
4 years agoMerge tag 'for-5.7/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/devic...
Linus Torvalds [Thu, 30 Apr 2020 23:45:08 +0000 (16:45 -0700)]
Merge tag 'for-5.7/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - Document DM integrity allow_discard feature that was added during 5.7
   merge window.

 - Fix potential for DM writecache data corruption during DM table
   reloads.

 - Fix DM verity's FEC support's hash block number calculation in
   verity_fec_decode().

 - Fix bio-based DM multipath crash due to use of stale copy of
   MPATHF_QUEUE_IO flag state in __map_bio().

* tag 'for-5.7/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath
  dm verity fec: fix hash block number in verity_fec_decode
  dm writecache: fix data corruption when reloading the target
  dm integrity: document allow_discard option

4 years agoMerge tag 'selinux-pr-20200430' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 30 Apr 2020 23:35:45 +0000 (16:35 -0700)]
Merge tag 'selinux-pr-20200430' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull SELinux fixes from Paul Moore:
 "Two more SELinux patches to fix problems in the v5.7-rcX releases.

  Wei Yongjun's patch fixes a return code in an error path, and my patch
  fixes a problem where we were not correctly applying access controls
  to all of the netlink messages in the netlink_send LSM hook"

* tag 'selinux-pr-20200430' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: properly handle multiple messages in selinux_netlink_send()
  selinux: fix error return code in cond_read_list()

4 years agoMerge tag 'linux-kselftest-kunit-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Thu, 30 Apr 2020 23:32:47 +0000 (16:32 -0700)]
Merge tag 'linux-kselftest-kunit-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kunit fix from Shuah Khan:
 "A single fix to flush the test summary to the console log without
  delay"

* tag 'linux-kselftest-kunit-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: Add missing newline in summary message

4 years agoMerge tag 'linux-kselftest-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 30 Apr 2020 23:28:49 +0000 (16:28 -0700)]
Merge tag 'linux-kselftest-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:

 - ftrace test fixes to check for required filter files and kprobe args.

 - Kselftest build/cross-build dependency check script to make it easier
   for test ring admins/users to configure build systems correctly for
   build/cross-build kselftests. Currently checks library dependencies.

    - Checks if Kselftests can be built/cross-built on a system running
      compile test on a trivial C file with LDLIBS specified for each
      individual test in their Makefiles.

    - Prints suggested target list for a system filtering out tests
      failed the build dependency check from the TARGETS in Selftests
      the main Makefile when optional -p is specified.

    - Prints pass/fail dependency check for each tests/sub-test.

    - Prints pass/fail targets and libraries.

    - Default: runs dependency checks on all tests.

    - Optional test name can be specified to check dependencies for it.

* tag 'linux-kselftest-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/ftrace: Check the first record for kprobe_args_type.tc
  selftests: add build/cross-build dependency check script
  selftests/ftrace: Check required filter files before running test

4 years agoselinux: properly handle multiple messages in selinux_netlink_send()
Paul Moore [Tue, 28 Apr 2020 13:59:02 +0000 (09:59 -0400)]
selinux: properly handle multiple messages in selinux_netlink_send()

Fix the SELinux netlink_send hook to properly handle multiple netlink
messages in a single sk_buff; each message is parsed and subject to
SELinux access control.  Prior to this patch, SELinux only inspected
the first message in the sk_buff.

Cc: stable@vger.kernel.org
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
4 years agoNFS: Fix a race in __nfs_list_for_each_server()
Trond Myklebust [Thu, 30 Apr 2020 19:08:26 +0000 (15:08 -0400)]
NFS: Fix a race in __nfs_list_for_each_server()

The struct nfs_server gets put on the cl_superblocks list before
the server->super field has been initialised, in which case the
call to nfs_sb_active() will Oops. Add a check to ensure that
we skip such a list entry.

Fixes: 84cdd34528b0 ("NFS: Add a helper nfs_client_for_each_server()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
4 years agoMerge tag 'mmc-v5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Thu, 30 Apr 2020 17:38:48 +0000 (10:38 -0700)]
Merge tag 'mmc-v5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:

 - meson-mx-sdio: Fix support for HW busy detection

 - sdhci-msm: Fix support for HW busy detection

 - cqhci: Fix polling loop by converting to readx_poll_timeout()

 - sdhci-xenon: Fix annoying 1.8V regulator warning

 - sdhci-pci: Fix eMMC driver strength for BYT-based controllers

* tag 'mmc-v5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-pci: Fix eMMC driver strength for BYT-based controllers
  mmc: sdhci-xenon: fix annoying 1.8V regulator warning
  mmc: sdhci-msm: Enable host capabilities pertains to R1b response
  mmc: cqhci: Avoid false "cqhci: CQE stuck on" by not open-coding timeout loop
  mmc: meson-mx-sdio: remove the broken ->card_busy() op
  mmc: meson-mx-sdio: Set MMC_CAP_WAIT_WHILE_BUSY
  mmc: core: make mmc_interrupt_hpi() static

4 years agoarm64: vdso: Add -fasynchronous-unwind-tables to cflags
Vincenzo Frascino [Wed, 29 Apr 2020 15:10:50 +0000 (16:10 +0100)]
arm64: vdso: Add -fasynchronous-unwind-tables to cflags

On arm64 linux gcc uses -fasynchronous-unwind-tables -funwind-tables
by default since gcc-8, so now the de facto platform ABI is to allow
unwinding from async signal handlers.

However on bare metal targets (aarch64-none-elf), and on old gcc,
async and sync unwind tables are not enabled by default to avoid
runtime memory costs.

This means if linux is built with a baremetal toolchain the vdso.so
may not have unwind tables which breaks the gcc platform ABI guarantee
in userspace.

Add -fasynchronous-unwind-tables explicitly to the vgettimeofday.o
cflags to address the ABI change.

Fixes: e124bab05b5a ("arm64: vdso: Substitute gettimeofday() with C implementation")
Cc: Will Deacon <will@kernel.org>
Reported-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
4 years agoblock: remove the bd_openers checks in blk_drop_partitions
Christoph Hellwig [Tue, 28 Apr 2020 08:52:03 +0000 (10:52 +0200)]
block: remove the bd_openers checks in blk_drop_partitions

When replacing the bd_super check with a bd_openers I followed a logical
conclusion, which turns out to be utterly wrong.  When a block device has
bd_super sets it has a mount file system on it (although not every
mounted file system sets bd_super), but that also implies it doesn't even
have partitions to start with.

So instead of trying to come up with a logical check for all openers,
just remove the check entirely.

Fixes: 141bffa70f02 ("block: fix busy device checking in blk_drop_partitions")
Fixes: e84c52a91a99 ("block: fix busy device checking in blk_drop_partitions again")
Reported-by: Michal Koutný <mkoutny@suse.com>
Reported-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoMerge branch 'nvme-5.7' of git://git.infradead.org/nvme into block-5.7
Jens Axboe [Thu, 30 Apr 2020 15:32:48 +0000 (09:32 -0600)]
Merge branch 'nvme-5.7' of git://git.infradead.org/nvme into block-5.7

Pull NVMe fix from Christoph.

* 'nvme-5.7' of git://git.infradead.org/nvme:
  nvme: prevent double free in nvme_alloc_ns() error handling

4 years agofibmap: Warn and return an error in case of block > INT_MAX
Ritesh Harjani [Thu, 30 Apr 2020 14:57:46 +0000 (07:57 -0700)]
fibmap: Warn and return an error in case of block > INT_MAX

We better warn the fibmap user and not return a truncated and therefore
an incorrect block map address if the bmap() returned block address
is greater than INT_MAX (since user supplied integer pointer).

It's better to pr_warn() all user of ioctl_fibmap() and return a proper
error code rather than silently letting a FS corruption happen if the
user tries to fiddle around with the returned block map address.

We fix this by returning an error code of -ERANGE and returning 0 as the
block mapping address in case if it is > INT_MAX.

Now iomap_bmap() could be called from either of these two paths.
Either when a user is calling an ioctl_fibmap() interface to get
the block mapping address or by some filesystem via use of bmap()
internal kernel API.
bmap() kernel API is well equipped with handling of u64 addresses.

WARN condition in iomap_bmap_actor() was mainly added to warn all
the fibmap users. But now that we have directly added this warning
for all fibmap users and also made sure to return 0 as block map address
in case if addr > INT_MAX.
So we can now remove this logic from iomap_bmap_actor().

Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
4 years agodma-buf: fix documentation build warnings
Randy Dunlap [Wed, 8 Apr 2020 04:20:34 +0000 (21:20 -0700)]
dma-buf: fix documentation build warnings

Fix documentation warnings in dma-buf.[hc]:

../drivers/dma-buf/dma-buf.c:678: warning: Function parameter or member 'importer_ops' not described in 'dma_buf_dynamic_attach'
../drivers/dma-buf/dma-buf.c:678: warning: Function parameter or member 'importer_priv' not described in 'dma_buf_dynamic_attach'
../include/linux/dma-buf.h:339: warning: Incorrect use of kernel-doc format:          * @move_notify

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/7bcbe6fe-0b4b-87da-d003-b68a26eb4cf0@infradead.org
4 years agoi2c: aspeed: Avoid i2c interrupt status clear race condition.
ryan_chen [Wed, 29 Apr 2020 03:37:37 +0000 (11:37 +0800)]
i2c: aspeed: Avoid i2c interrupt status clear race condition.

In AST2600 there have a slow peripheral bus between CPU and i2c
controller. Therefore GIC i2c interrupt status clear have delay timing,
when CPU issue write clear i2c controller interrupt status. To avoid
this issue, the driver need have read after write clear at i2c ISR.

Fixes: 05727007130b ("i2c: aspeed: added driver for Aspeed I2C")
Signed-off-by: ryan_chen <ryan_chen@aspeedtech.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[wsa: added Fixes tag]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
4 years agoi2c: amd-mp2-pci: Fix Oops in amd_mp2_pci_init() error handling
Dan Carpenter [Tue, 10 Sep 2019 13:42:42 +0000 (16:42 +0300)]
i2c: amd-mp2-pci: Fix Oops in amd_mp2_pci_init() error handling

The problem is that we dereference "privdata->pci_dev" when we print
the error messages in amd_mp2_pci_init():

dev_err(ndev_dev(privdata), "Failed to enable MP2 PCI device\n");
^^^^^^^^^^^^^^^^^

Fixes: ef4205193b3e ("i2c: Add drivers for the AMD PCIe MP2 I2C controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
4 years agoALSA: usb-audio: Correct a typo of NuPrime DAC-10 USB ID
Takashi Iwai [Thu, 30 Apr 2020 12:47:55 +0000 (14:47 +0200)]
ALSA: usb-audio: Correct a typo of NuPrime DAC-10 USB ID

The USB vendor ID of NuPrime DAC-10 is not 16b0 but 16d0.

Fixes: 38c1ac9f6e32 ("ALSA: usb-audio: add more quirks for DSD interfaces")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200430124755.15940-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agobtrfs: fix gcc-4.8 build warning for struct initializer
Arnd Bergmann [Wed, 29 Apr 2020 13:27:32 +0000 (15:27 +0200)]
btrfs: fix gcc-4.8 build warning for struct initializer

Some older compilers like gcc-4.8 warn about mismatched curly braces in
a initializer:

fs/btrfs/backref.c: In function 'is_shared_data_backref':
fs/btrfs/backref.c:394:9: error: missing braces around
initializer [-Werror=missing-braces]
  struct prelim_ref target = {0};
         ^
fs/btrfs/backref.c:394:9: error: (near initialization for
'target.rbnode') [-Werror=missing-braces]

Use the GNU empty initializer extension to avoid this.

Fixes: 6bc741fe37a4 ("btrfs: backref, don't add refs from shared block when resolving normal backref")
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
4 years agoALSA: opti9xx: shut up gcc-10 range warning
Arnd Bergmann [Wed, 29 Apr 2020 19:02:03 +0000 (21:02 +0200)]
ALSA: opti9xx: shut up gcc-10 range warning

gcc-10 points out a few instances of suspicious integer arithmetic
leading to value truncation:

sound/isa/opti9xx/opti92x-ad1848.c: In function 'snd_opti9xx_configure':
sound/isa/opti9xx/opti92x-ad1848.c:322:43: error: overflow in conversion from 'int' to 'unsigned char' changes value from '(int)snd_opti9xx_read(chip, 3) & -256 | 240' to '240' [-Werror=overflow]
  322 |   (snd_opti9xx_read(chip, reg) & ~(mask)) | ((value) & (mask)))
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
sound/isa/opti9xx/opti92x-ad1848.c:351:3: note: in expansion of macro 'snd_opti9xx_write_mask'
  351 |   snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
      |   ^~~~~~~~~~~~~~~~~~~~~~
sound/isa/opti9xx/miro.c: In function 'snd_miro_configure':
sound/isa/opti9xx/miro.c:873:40: error: overflow in conversion from 'int' to 'unsigned char' changes value from '(int)snd_miro_read(chip, 3) & -256 | 240' to '240' [-Werror=overflow]
  873 |   (snd_miro_read(chip, reg) & ~(mask)) | ((value) & (mask)))
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
sound/isa/opti9xx/miro.c:1010:3: note: in expansion of macro 'snd_miro_write_mask'
 1010 |   snd_miro_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
      |   ^~~~~~~~~~~~~~~~~~~

These are all harmless here as only the low 8 bit are passed down
anyway. Change the macros to inline functions to make the code
more readable and also avoid the warning.

Strictly speaking those functions also need locking to make the
read/write pair atomic, but it seems unlikely that anyone would
still run into that issue.

Fixes: 3988f00de2ea ("[ALSA] Add snd-miro driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200429190216.85919-1-arnd@arndb.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agoarm64: dts: meson-g12: remove spurious blank line
Neil Armstrong [Mon, 20 Apr 2020 08:00:18 +0000 (10:00 +0200)]
arm64: dts: meson-g12: remove spurious blank line

Remove spurious blank line introduced in 3bbcde535076 but was not part
of the original patch at [1].

[1] http://lore.kernel.org/r/20200313090713.15147-3-narmstrong@baylibre.com

Fixes: 3bbcde535076 ("arm64: dts: meson-g12: add the SPIFC nodes")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200420080018.11607-1-narmstrong@baylibre.com
4 years agoarm64: dts: meson-g12b-khadas-vim3: add missing frddr_a status property
Neil Armstrong [Fri, 18 Oct 2019 14:02:16 +0000 (14:02 +0000)]
arm64: dts: meson-g12b-khadas-vim3: add missing frddr_a status property

In the process of moving the VIM3 audio nodes to a G12B specific dtsi
for enabling the SM1 based VIM3L, the frddr_a status = "okay" property
got dropped.
This re-enables the frddr_a node to fix audio support.

Fixes: 08b4ad4c7256 ("arm64: dts: khadas-vim3: move common nodes into meson-khadas-vim3.dtsi")
Reported-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20191018140216.4257-1-narmstrong@baylibre.com
4 years agoarm64: dts: meson-g12-common: fix dwc2 clock names
Neil Armstrong [Thu, 26 Mar 2020 16:08:57 +0000 (17:08 +0100)]
arm64: dts: meson-g12-common: fix dwc2 clock names

Use the correct dwc2 clock name.

Fixes: de5dc166b0b1 ("arm64: dts: meson: g12a: Add G12A USB nodes")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20200326160857.11929-3-narmstrong@baylibre.com
4 years agoarm64: dts: meson-g12b-ugoos-am6: fix usb vbus-supply
Neil Armstrong [Thu, 26 Mar 2020 16:08:56 +0000 (17:08 +0100)]
arm64: dts: meson-g12b-ugoos-am6: fix usb vbus-supply

The USB supply used the wrong property, fixing:
meson-g12b-ugoos-am6.dt.yaml: usb@ffe09000: 'vbus-regulator' does not match any of the regexes: '^usb@[0-9a-f]+$', 'pinctrl-[0-9]+'

Fixes: 09fd049cce84 ("arm64: dts: meson-g12b-ugoos-am6: add initial device-tree")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20200326160857.11929-2-narmstrong@baylibre.com
4 years agoMerge tag 'riscv-for-linus-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 29 Apr 2020 16:25:32 +0000 (09:25 -0700)]
Merge tag 'riscv-for-linus-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:
 "A handful of fixes.

  Specifically:

   - fix linker argument to allow linking with lld

   - build fix for configurations without a frame pointer

   - a handful of build fixes related the SBI 0.1 vs 0.2 split

   - remove STRICT_KERNEL_RWX for !MMU, which isn't useful"

* tag 'riscv-for-linus-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: select ARCH_HAS_STRICT_KERNEL_RWX only if MMU
  riscv: sbi: Fix undefined reference to sbi_shutdown
  tty: riscv: Using RISCV_SBI_V01 instead of RISCV_SBI
  riscv: sbi: Correct sbi_shutdown() and sbi_clear_ipi() export
  riscv: fix vdso build with lld
  RISC-V: stacktrace: Declare sp_in_global outside ifdef

4 years agoMerge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Wed, 29 Apr 2020 16:22:32 +0000 (09:22 -0700)]
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This fixes a bunch of bugs detected by KASAN in the caam driver"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: caam - fix the address of the last entry of S/G
  crypto: caam - fix use-after-free KASAN issue for RSA algorithms
  crypto: caam - fix use-after-free KASAN issue for HASH algorithms
  crypto: caam - fix use-after-free KASAN issue for AEAD algorithms
  crypto: caam - fix use-after-free KASAN issue for SKCIPHER algorithms

4 years agoiommu: spapr_tce: Disable compile testing to fix build on book3s_32 config
Krzysztof Kozlowski [Tue, 14 Apr 2020 14:26:30 +0000 (16:26 +0200)]
iommu: spapr_tce: Disable compile testing to fix build on book3s_32 config

Although SPAPR_TCE_IOMMU itself can be compile tested on certain PowerPC
configurations, its presence makes arch/powerpc/kvm/Makefile to select
modules which do not build in such configuration.

The arch/powerpc/kvm/ modules use kvm_arch.spapr_tce_tables which exists
only with CONFIG_PPC_BOOK3S_64.  However these modules are selected when
COMPILE_TEST and SPAPR_TCE_IOMMU are chosen leading to build failures:

    In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:20:0,
                     from arch/powerpc/kvm/book3s_64_vio_hv.c:22:
    arch/powerpc/include/asm/book3s/64/pgtable.h:17:0: error: "_PAGE_EXEC" redefined [-Werror]
     #define _PAGE_EXEC  0x00001 /* execute permission */

    In file included from arch/powerpc/include/asm/book3s/32/pgtable.h:8:0,
                     from arch/powerpc/include/asm/book3s/pgtable.h:8,
                     from arch/powerpc/include/asm/pgtable.h:18,
                     from include/linux/mm.h:95,
                     from arch/powerpc/include/asm/io.h:29,
                     from include/linux/io.h:13,
                     from include/linux/irq.h:20,
                     from arch/powerpc/include/asm/hardirq.h:6,
                     from include/linux/hardirq.h:9,
                     from include/linux/kvm_host.h:7,
                     from arch/powerpc/kvm/book3s_64_vio_hv.c:12:
    arch/powerpc/include/asm/book3s/32/hash.h:29:0: note: this is the location of the previous definition
     #define _PAGE_EXEC 0x200 /* software: exec allowed */

Fixes: 291aecdb1974 ("iommu: Enable compile testing for some of drivers")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200414142630.21153-1-krzk@kernel.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
4 years agoiommu/mediatek: Fix MTK_IOMMU dependencies
Geert Uytterhoeven [Fri, 10 Apr 2020 14:30:47 +0000 (16:30 +0200)]
iommu/mediatek: Fix MTK_IOMMU dependencies

If NO_DMA=y (e.g. Sun-3 all{mod,yes}-config):

    drivers/iommu/dma-iommu.o: In function `iommu_dma_mmap':
    dma-iommu.c:(.text+0x836): undefined reference to `dma_pgprot'

IOMMU_DMA must not be selected, unless HAS_DMA=y.

Hence fix this by making MTK_IOMMU depend on HAS_DMA.
While at it, remove the dependency on ARM || ARM64, as that is already
implied by the dependency on ARCH_MEDIATEK.

Fixes: 291aecdb197433aa ("iommu: Enable compile testing for some of drivers")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20200410143047.19691-1-geert@linux-m68k.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
4 years agoiommu: Fix the memory leak in dev_iommu_free()
Kevin Hao [Thu, 2 Apr 2020 14:37:49 +0000 (22:37 +0800)]
iommu: Fix the memory leak in dev_iommu_free()

In iommu_probe_device(), we would invoke dev_iommu_free() to free the
dev->iommu after the ->add_device() returns failure. But after commit
e0fc12312056 ("iommu: Move iommu_fwspec to struct dev_iommu"), we also
need to free the iommu_fwspec before the dev->iommu is freed. This fixes
the following memory leak reported by kmemleak:
  unreferenced object 0xffff000bc836c700 (size 128):
    comm "swapper/0", pid 1, jiffies 4294896304 (age 782.120s)
    hex dump (first 32 bytes):
      00 00 00 00 00 00 00 00 d8 cd 9b ff 0b 00 ff ff  ................
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    backtrace:
      [<00000000df34077b>] kmem_cache_alloc_trace+0x244/0x4b0
      [<000000000e560ac0>] iommu_fwspec_init+0x7c/0xb0
      [<0000000075eda275>] of_iommu_xlate+0x80/0xe8
      [<00000000728d6bf9>] of_pci_iommu_init+0xb0/0xb8
      [<00000000d001fe6f>] pci_for_each_dma_alias+0x48/0x190
      [<000000006db6bbce>] of_iommu_configure+0x1ac/0x1d0
      [<00000000634745f8>] of_dma_configure+0xdc/0x220
      [<000000002cbc8ba0>] pci_dma_configure+0x50/0x78
      [<00000000cdf6e193>] really_probe+0x8c/0x340
      [<00000000fddddc46>] driver_probe_device+0x60/0xf8
      [<0000000061bcdb51>] __device_attach_driver+0x8c/0xd0
      [<000000009b9ff58e>] bus_for_each_drv+0x80/0xd0
      [<000000004b9c8aa3>] __device_attach+0xec/0x148
      [<00000000a5c13bf3>] device_attach+0x1c/0x28
      [<000000005071e151>] pci_bus_add_device+0x58/0xd0
      [<000000002d4f87d1>] pci_bus_add_devices+0x40/0x90

Fixes: e0fc12312056 ("iommu: Move iommu_fwspec to struct dev_iommu")
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Link: https://lore.kernel.org/r/20200402143749.40500-1-haokexin@gmail.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
4 years agodrm/qxl: qxl_release use after free
Vasily Averin [Wed, 29 Apr 2020 09:01:24 +0000 (12:01 +0300)]
drm/qxl: qxl_release use after free

qxl_release should not be accesses after qxl_push_*_ring_release() calls:
userspace driver can process submitted command quickly, move qxl_release
into release_ring, generate interrupt and trigger garbage collector.

It can lead to crashes in qxl driver or trigger memory corruption
in some kmalloc-192 slab object

Gerd Hoffmann proposes to swap the qxl_release_fence_buffer_objects() +
qxl_push_{cursor,command}_ring_release() calls to close that race window.

cc: stable@vger.kernel.org
Fixes: 64209f3ffc9f ("drm: add new QXL driver. (v1.4)")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Link: http://patchwork.freedesktop.org/patch/msgid/fa17b338-66ae-f299-68fe-8d32419d9071@virtuozzo.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
4 years agodrm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper()
Vasily Averin [Wed, 29 Apr 2020 09:34:36 +0000 (12:34 +0300)]
drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper()

v2: removed TODO reminder

Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Link: http://patchwork.freedesktop.org/patch/msgid/a4e0ae09-a73c-1c62-04ef-3f990d41bea9@virtuozzo.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
4 years agoALSA: hda/hdmi: fix without unlocked before return
Wu Bo [Sun, 26 Apr 2020 13:17:22 +0000 (21:17 +0800)]
ALSA: hda/hdmi: fix without unlocked before return

Fix the following coccicheck warning:
sound/pci/hda/patch_hdmi.c:1852:2-8: preceding lock on line 1846

After add sanity check to pass klockwork check,
The spdif_mutex should be unlock before return true
in check_non_pcm_per_cvt().

Fixes: 768da69501fd ("ALSA: hda: fix some klockwork scan warnings")
Signed-off-by: Wu Bo <wubo40@huawei.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1587907042-694161-1-git-send-email-wubo40@huawei.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agoarm64: dts: freescale: imx8mp: update input_val for AUDIOMIX_BIT_STREAM
Shengjiu Wang [Fri, 24 Apr 2020 09:05:15 +0000 (17:05 +0800)]
arm64: dts: freescale: imx8mp: update input_val for AUDIOMIX_BIT_STREAM

Update input_val for AUDIOMIX_BIT_STREAM according to latest RM.

Fixes: 6db656977fa3 ("arm64: dts: freescale: Add i.MX8MP dtsi support")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
4 years agodm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath
Gabriel Krisman Bertazi [Tue, 28 Apr 2020 00:39:11 +0000 (20:39 -0400)]
dm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath

When adding devices that don't have a scsi_dh on a BIO based multipath,
I was able to consistently hit the warning below and lock-up the system.

The problem is that __map_bio reads the flag before it potentially being
modified by choose_pgpath, and ends up using the older value.

The WARN_ON below is not trivially linked to the issue. It goes like
this: The activate_path delayed_work is not initialized for non-scsi_dh
devices, but we always set MPATHF_QUEUE_IO, asking for initialization.
That is fine, since MPATHF_QUEUE_IO would be cleared in choose_pgpath.
Nevertheless, only for BIO-based mpath, we cache the flag before calling
choose_pgpath, and use the older version when deciding if we should
initialize the path.  Therefore, we end up trying to initialize the
paths, and calling the non-initialized activate_path work.

[   82.437100] ------------[ cut here ]------------
[   82.437659] WARNING: CPU: 3 PID: 602 at kernel/workqueue.c:1624
  __queue_delayed_work+0x71/0x90
[   82.438436] Modules linked in:
[   82.438911] CPU: 3 PID: 602 Comm: systemd-udevd Not tainted 5.6.0-rc6+ #339
[   82.439680] RIP: 0010:__queue_delayed_work+0x71/0x90
[   82.440287] Code: c1 48 89 4a 50 81 ff 00 02 00 00 75 2a 4c 89 cf e9
94 d6 07 00 e9 7f e9 ff ff 0f 0b eb c7 0f 0b 48 81 7a 58 40 74 a8 94 74
a7 <0f> 0b 48 83 7a 48 00 74 a5 0f 0b eb a1 89 fe 4c 89 cf e9 c8 c4 07
[   82.441719] RSP: 0018:ffffb738803977c0 EFLAGS: 00010007
[   82.442121] RAX: ffffa086389f9740 RBX: 0000000000000002 RCX: 0000000000000000
[   82.442718] RDX: ffffa086350dd930 RSI: ffffa0863d76f600 RDI: 0000000000000200
[   82.443484] RBP: 0000000000000200 R08: 0000000000000000 R09: ffffa086350dd970
[   82.444128] R10: 0000000000000000 R11: 0000000000000000 R12: ffffa086350dd930
[   82.444773] R13: ffffa0863d76f600 R14: 0000000000000000 R15: ffffa08636738008
[   82.445427] FS:  00007f6abfe9dd40(0000) GS:ffffa0863dd80000(0000) knlGS:00000
[   82.446040] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.446478] CR2: 0000557d288db4e8 CR3: 0000000078b36000 CR4: 00000000000006e0
[   82.447104] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   82.447561] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   82.448012] Call Trace:
[   82.448164]  queue_delayed_work_on+0x6d/0x80
[   82.448472]  __pg_init_all_paths+0x7b/0xf0
[   82.448714]  pg_init_all_paths+0x26/0x40
[   82.448980]  __multipath_map_bio.isra.0+0x84/0x210
[   82.449267]  __map_bio+0x3c/0x1f0
[   82.449468]  __split_and_process_non_flush+0x14a/0x1b0
[   82.449775]  __split_and_process_bio+0xde/0x340
[   82.450045]  ? dm_get_live_table+0x5/0xb0
[   82.450278]  dm_process_bio+0x98/0x290
[   82.450518]  dm_make_request+0x54/0x120
[   82.450778]  generic_make_request+0xd2/0x3e0
[   82.451038]  ? submit_bio+0x3c/0x150
[   82.451278]  submit_bio+0x3c/0x150
[   82.451492]  mpage_readpages+0x129/0x160
[   82.451756]  ? bdev_evict_inode+0x1d0/0x1d0
[   82.452033]  read_pages+0x72/0x170
[   82.452260]  __do_page_cache_readahead+0x1ba/0x1d0
[   82.452624]  force_page_cache_readahead+0x96/0x110
[   82.452903]  generic_file_read_iter+0x84f/0xae0
[   82.453192]  ? __seccomp_filter+0x7c/0x670
[   82.453547]  new_sync_read+0x10e/0x190
[   82.453883]  vfs_read+0x9d/0x150
[   82.454172]  ksys_read+0x65/0xe0
[   82.454466]  do_syscall_64+0x4e/0x210
[   82.454828]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[...]
[   82.462501] ---[ end trace bb39975e9cf45daa ]---

Cc: stable@vger.kernel.org
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
4 years agodrm/i915: Use proper fault mask in interrupt postinstall too
Matt Roper [Fri, 24 Apr 2020 23:14:23 +0000 (16:14 -0700)]
drm/i915: Use proper fault mask in interrupt postinstall too

The IRQ postinstall handling had open-coded pipe fault mask selection
that never got updated for gen11.  Switch it to use
gen8_de_pipe_fault_mask() to ensure we don't miss updates for new
platforms.

Cc: José Roberto de Souza <jose.souza@intel.com>
Fixes: 88798dac70b4 ("drm/i915: Catch GTT fault errors for gen11+ planes")
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200424231423.4065231-1-matthew.d.roper@intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
(cherry picked from commit 869129ee0c624a78c74e50b51635e183196cd2c6)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
4 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Tue, 28 Apr 2020 21:38:39 +0000 (14:38 -0700)]
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs fixes from Al Viro:
 "Two old bugs..."

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  propagate_one(): mnt_set_mountpoint() needs mount_lock
  dlmfs_file_write(): fix the bogosity in handling non-zero *ppos

4 years agoFix use after free in get_tree_bdev()
David Howells [Tue, 28 Apr 2020 20:27:48 +0000 (21:27 +0100)]
Fix use after free in get_tree_bdev()

Commit d0da5eb559fa, a fix to get_tree_bdev() put a missing blkdev_put() in
the wrong place, before a warnf() that displays the bdev under
consideration rather after it.

This results in a silent lockup in printk("%pg") called via warnf() from
get_tree_bdev() under some circumstances when there's a race with the
blockdev being frozen.  This can be caused by xfstests/tests/generic/085 in
combination with Lukas Czerner's ext4 mount API conversion patchset.  It
looks like it ought to occur with other users of get_tree_bdev() such as
XFS, but apparently doesn't.

Fix this by switching the order of the lines.

Fixes: d0da5eb559fa ("vfs: add missing blkdev_put() in get_tree_bdev()")
Reported-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Ian Kent <raven@themaw.net>
cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
4 years agodrm/amd/display: Use cursor locking to prevent flip delays
Aric Cyr [Wed, 22 Apr 2020 22:08:03 +0000 (18:08 -0400)]
drm/amd/display: Use cursor locking to prevent flip delays

[Why]
Current locking scheme for cursor can result in a flip missing
its vsync, deferring it for one or more vsyncs.  Result is a
potential for stuttering when cursor is moved.

[How]
Use cursor update lock so that flips are not blocked while cursor
is being programmed.

Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Update downspread percent to match spreadsheet for DCN2.1
Sung Lee [Wed, 22 Apr 2020 22:07:57 +0000 (18:07 -0400)]
drm/amd/display: Update downspread percent to match spreadsheet for DCN2.1

[WHY]
The downspread percentage was copied over from a previous version
of the display_mode_lib spreadsheet. This value has been updated,
and the previous value is too high to allow for such modes as
4K120hz. The new value is sufficient for such modes.

[HOW]
Update the value in dcn21_resource to match the spreadsheet.

Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Defer cursor update around VUPDATE for all ASIC
Nicholas Kazlauskas [Wed, 22 Apr 2020 22:07:56 +0000 (18:07 -0400)]
drm/amd/display: Defer cursor update around VUPDATE for all ASIC

[Why]
Fixes the following scenario:

- Flip has been prepared sometime during the frame, update pending
- Cursor update happens right when VUPDATE would happen
- OPTC lock acquired, VUPDATE is blocked until next frame
- Flip is delayed potentially infinitely

With the igt@kms_cursor_legacy cursor-vs-flip-legacy test we can
observe nearly *13* frames of delay for some flips on Navi.

[How]
Apply the Raven workaround generically. When close enough to VUPDATE
block cursor updates from occurring from the dc_stream_set_cursor_*
helpers.

This could perhaps be a little smarter by checking if there were
pending updates or flips earlier in the frame on the HUBP side before
applying the delay, but this should be fine for now.

This fixes the kms_cursor_legacy test.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: fix rn soc bb update
Dmytro Laktyushkin [Wed, 22 Apr 2020 22:07:53 +0000 (18:07 -0400)]
drm/amd/display: fix rn soc bb update

Currently RN SOC bounding box update assumes we will get at least
2 clock states from SMU. This isn't always true and because of special
casing on first clock state we end up with low disp, dpp, dsc and phy
clocks.

This change removes the special casing allowing the first state to
acquire correct clocks.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: check if REFCLK_CNTL register is present
Dmytro Laktyushkin [Wed, 22 Apr 2020 22:07:52 +0000 (18:07 -0400)]
drm/amd/display: check if REFCLK_CNTL register is present

Check before programming the register since it isn't present on
all IPs using this code.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Linus Torvalds [Tue, 28 Apr 2020 20:18:07 +0000 (13:18 -0700)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "A couple of regressions were found in rc1, as well as another set of
  races and bugs:

   - A regression where RDMA_CM_EVENT_REJECTED was lost in some cases

   - Bad error handling in the CM, uverbs, rvt, siw and i40iw

   - Kernel stack memory leak to user space in mlx4

   - Missing data in a uapi query for mlx5

   - Three races found by syzkaller in the ib core code"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/core: Fix race between destroy and release FD object
  IB/rdmavt: Always return ERR_PTR from rvt_create_mmap_info()
  RDMA/core: Fix overwriting of uobj in case of error
  RDMA/core: Prevent mixed use of FDs between shared ufiles
  RDMA/uverbs: Fix a race with disassociate and exit_mmap()
  RDMA/mlx5: Set GRH fields in query QP on RoCE
  RDMA/siw: Fix potential siw_mem refcnt leak in siw_fastreg_mr()
  RDMA/mlx4: Initialize ib_spec on the stack
  RDMA/cm: Fix an error check in cm_alloc_id_priv()
  RDMA/cm: Fix missing RDMA_CM_EVENT_REJECTED event after receiving REJ message
  i40iw: fix null pointer dereference on a null wqe pointer

4 years agoMerge tag 'nfs-rdma-for-5.7-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Trond Myklebust [Tue, 28 Apr 2020 19:59:03 +0000 (15:59 -0400)]
Merge tag 'nfs-rdma-for-5.7-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

NFSoRDMA Client Fixes for Linux 5.7

Bugfixes:
- Restore wake-up-all to rpcrdma_cm_event_handler()
  - Otherwise the client won't respond to server disconnect requests
- Fix tracepoint use-after-free race
- Fix usage of xdr_stream_encode_item_{present, absent}
  - These functions return a size on success, and not 0

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
4 years agoNFSv4.1: fix handling of backchannel binding in BIND_CONN_TO_SESSION
Olga Kornievskaia [Fri, 24 Apr 2020 21:45:50 +0000 (17:45 -0400)]
NFSv4.1: fix handling of backchannel binding in BIND_CONN_TO_SESSION

Currently, if the client sends BIND_CONN_TO_SESSION with
NFS4_CDFC4_FORE_OR_BOTH but only gets NFS4_CDFS4_FORE back it ignores
that it wasn't able to enable a backchannel.

To make sure, the client sends BIND_CONN_TO_SESSION as the first
operation on the connections (ie., no other session compounds haven't
been sent before), and if the client's request to bind the backchannel
is not satisfied, then reset the connection and retry.

Cc: stable@vger.kernel.org
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
4 years agoSUNRPC: defer slow parts of rpc_free_client() to a workqueue.
NeilBrown [Fri, 3 Apr 2020 03:33:41 +0000 (14:33 +1100)]
SUNRPC: defer slow parts of rpc_free_client() to a workqueue.

The rpciod workqueue is on the write-out path for freeing dirty memory,
so it is important that it never block waiting for memory to be
allocated - this can lead to a deadlock.

rpc_execute() - which is often called by an rpciod work item - calls
rcp_task_release_client() which can lead to rpc_free_client().

rpc_free_client() makes two calls which could potentially block wating
for memory allocation.

rpc_clnt_debugfs_unregister() calls into debugfs and will block while
any of the debugfs files are being accessed.  In particular it can block
while any of the 'open' methods are being called and all of these use
malloc for one thing or another.  So this can deadlock if the memory
allocation waits for NFS to complete some writes via rpciod.

rpc_clnt_remove_pipedir() can take the inode_lock() and while it isn't
obvious that memory allocations can happen while the lock it held, it is
safer to assume they might and to not let rpciod call
rpc_clnt_remove_pipedir().

So this patch moves these two calls (together with the final kfree() and
rpciod_down()) into a work-item to be run from the system work-queue.
rpciod can continue its important work, and the final stages of the free
can happen whenever they happen.

I have seen this deadlock on a 4.12 based kernel where debugfs used
synchronize_srcu() when removing objects.  synchronize_srcu() requires a
workqueue and there were no free workther threads and none could be
allocated.  While debugsfs no longer uses SRCU, I believe the deadlock
is still possible.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
4 years agodrm/amdgpu: bump version for invalidate L2 before SDMA IBs
Marek Olšák [Mon, 27 Apr 2020 20:25:39 +0000 (16:25 -0400)]
drm/amdgpu: bump version for invalidate L2 before SDMA IBs

This fixes GPU hangs due to cache coherency issues.
Bump the driver version. Split out from the original patch.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: invalidate L2 before SDMA IBs (v2)
Marek Olšák [Mon, 27 Apr 2020 19:59:22 +0000 (15:59 -0400)]
drm/amdgpu: invalidate L2 before SDMA IBs (v2)

This fixes GPU hangs due to cache coherency issues.

v2: Split the version bump to a separate patch

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
4 years agodrm/amdgpu: add tiling flags from Mesa
Marek Olšák [Sat, 18 Apr 2020 00:50:30 +0000 (20:50 -0400)]
drm/amdgpu: add tiling flags from Mesa

DCC_INDEPENDENT_128B is needed for displayble DCC on gfx10.
SCANOUT is not needed by the kernel, but Mesa uses it.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/powerplay: avoid using pm_en before it is initialized revised
Tiecheng Zhou [Sun, 26 Apr 2020 11:03:17 +0000 (19:03 +0800)]
drm/amd/powerplay: avoid using pm_en before it is initialized revised

hwmgr->pm_en is initialized at hwmgr_hw_init.

during amdgpu_device_init, there is amdgpu_asic_reset that calls to
soc15_asic_reset (for V320 usecase, Vega10 asic), in which:
1) soc15_asic_reset_method calls to pp_get_asic_baco_capability (pm_en)
2) soc15_asic_baco_reset calls to pp_set_asic_baco_state (pm_en)

pm_en is used in the above two cases while it has not yet been initialized

So avoid using pm_en in the above two functions for V320 passthrough.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Tiecheng Zhou <Tiecheng.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agoRevert "drm/amd/powerplay: avoid using pm_en before it is initialized"
Tiecheng Zhou [Mon, 27 Apr 2020 01:44:38 +0000 (09:44 +0800)]
Revert "drm/amd/powerplay: avoid using pm_en before it is initialized"

This reverts commit 8f583d05c13bf8d6f19420dc17d1b0f11108c517.

The commit being reverted changed the wrong place, it should have
changed in func get_asic_baco_capability.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Tiecheng Zhou <Tiecheng.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodmaengine: dmatest: Fix process hang when reading 'wait' parameter
Andy Shevchenko [Tue, 28 Apr 2020 11:35:18 +0000 (14:35 +0300)]
dmaengine: dmatest: Fix process hang when reading 'wait' parameter

If we do

  % echo 1 > /sys/module/dmatest/parameters/run
  [  115.851124] dmatest: Could not start test, no channels configured

  % echo dma8chan7 > /sys/module/dmatest/parameters/channel
  [  127.563872] dmatest: Added 1 threads using dma8chan7

  % cat /sys/module/dmatest/parameters/wait
  ... !!! HANG !!! ...

The culprit is the commit 495631632fa8

  ("dmaengine: dmatest: Use fixed point div to calculate iops")

which makes threads not to run, but pending and being kicked off by writing
to the 'run' node. However, it forgot to consider 'wait' routine to avoid
above mentioned case.

In order to fix this, check for really running threads, i.e. with pending
and done flags unset.

It's pity the culprit commit hadn't updated documentation and tested all
possible scenarios.

Fixes: 495631632fa8 ("dmaengine: dmatest: Use fixed point div to calculate iops")
Cc: Seraj Alijan <seraj.alijan@sondrel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200428113518.70620-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
4 years agoMerge tag 'cve-2020-11884' from emailed bundle
Linus Torvalds [Tue, 28 Apr 2020 16:13:08 +0000 (09:13 -0700)]
Merge tag 'cve-2020-11884' from emailed bundle

Pull s390 fix from Christian Borntraeger:
 "Fix a race between page table upgrade and uaccess on s390.

  This fixes CVE-2020-11884 which allows for a local kernel crash or
  code execution"

* tag 'cve-2020-11884' from emailed bundle:
  s390/mm: fix page table upgrade vs 2ndary address mode accesses

4 years agoALSA: hda/hdmi: fix race in monitor detection during probe
Kai Vehmanen [Tue, 28 Apr 2020 12:38:36 +0000 (15:38 +0300)]
ALSA: hda/hdmi: fix race in monitor detection during probe

A race exists between build_pcms() and build_controls() phases of codec
setup. Build_pcms() sets up notifier for jack events. If a monitor event
is received before build_controls() is run, the initial jack state is
lost and never reported via mixer controls.

The problem can be hit at least with SOF as the controller driver. SOF
calls snd_hda_codec_build_controls() in its workqueue-based probe and
this can be delayed enough to hit the race condition.

Fix the issue by invalidating the per-pin ELD information when
build_controls() is called. The existing call to hdmi_present_sense()
will update the ELD contents. This ensures initial monitor state is
correctly reflected via mixer controls.

BugLink: https://github.com/thesofproject/linux/issues/1687
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200428123836.24512-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>