platform/kernel/linux-starfive.git
2 years agoMerge tag 'drm-msm-fixes-2022-04-30' of https://gitlab.freedesktop.org/drm/msm into...
Dave Airlie [Fri, 6 May 2022 01:17:59 +0000 (11:17 +1000)]
Merge tag 'drm-msm-fixes-2022-04-30' of https://gitlab.freedesktop.org/drm/msm into drm-fixes

single lockdep fix.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGtkzqzxDLp82OaKXVrWd7nWZtkxKsuOK1wOGCDz7qF-dA@mail.gmail.com
2 years agoMerge tag 'drm-misc-fixes-2022-05-05' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Fri, 6 May 2022 00:56:20 +0000 (10:56 +1000)]
Merge tag 'drm-misc-fixes-2022-05-05' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

drm-misc-fixes for v5.18-rc6:
- Small fix for hot-unplugging fb devices.
- Kconfig fix for it6505.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/69e51773-8c6f-4ff7-9a06-5c2922a43999@linux.intel.com
2 years agoMerge tag 'amd-drm-fixes-5.18-2022-05-04' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Thu, 5 May 2022 23:59:47 +0000 (09:59 +1000)]
Merge tag 'amd-drm-fixes-5.18-2022-05-04' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-5.18-2022-05-04:

amdgpu:
- Fix a xen dom0 regression on APUs
- Fix a potential array overflow if a receiver were to
  send an erroneous audio channel count

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220504190439.5723-1-alexander.deucher@amd.com
2 years agodrm/amd/display: Avoid reading audio pattern past AUDIO_CHANNELS_COUNT
Harry Wentland [Tue, 19 Apr 2022 17:03:12 +0000 (13:03 -0400)]
drm/amd/display: Avoid reading audio pattern past AUDIO_CHANNELS_COUNT

A faulty receiver might report an erroneous channel count. We
should guard against reading beyond AUDIO_CHANNELS_COUNT as
that would overflow the dpcd_pattern_period array.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2 years agodrm/amdgpu: do not use passthrough mode in Xen dom0
Marek Marczykowski-Górecki [Tue, 26 Apr 2022 23:57:15 +0000 (01:57 +0200)]
drm/amdgpu: do not use passthrough mode in Xen dom0

While technically Xen dom0 is a virtual machine too, it does have
access to most of the hardware so it doesn't need to be considered a
"passthrough". Commit b818a5d37454 ("drm/amdgpu/gmc: use PCI BARs for
APUs in passthrough") changed how FB is accessed based on passthrough
mode. This breaks amdgpu in Xen dom0 with message like this:

    [drm:dc_dmub_srv_wait_idle [amdgpu]] *ERROR* Error waiting for DMUB idle: status=3

While the reason for this failure is unclear, the passthrough mode is
not really necessary in Xen dom0 anyway. So, to unbreak booting affected
kernels, disable passthrough mode in this case.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1985
Fixes: b818a5d37454 ("drm/amdgpu/gmc: use PCI BARs for APUs in passthrough")
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2 years agodrm/bridge: ite-it6505: add missing Kconfig option select
Fabien Parent [Tue, 26 Apr 2022 14:15:36 +0000 (16:15 +0200)]
drm/bridge: ite-it6505: add missing Kconfig option select

The IT6505 is using functions provided by the DRM_DP_HELPER driver.
In order to avoid having the bridge enabled but the helper disabled,
let's add a select in order to be sure that the DP helper functions are
always available.

Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220426141536.274727-1-fparent@baylibre.com
2 years agofbdev: Make fb_release() return -ENODEV if fbdev was unregistered
Javier Martinez Canillas [Mon, 2 May 2022 13:50:14 +0000 (15:50 +0200)]
fbdev: Make fb_release() return -ENODEV if fbdev was unregistered

A reference to the framebuffer device struct fb_info is stored in the file
private data, but this reference could no longer be valid and must not be
accessed directly. Instead, the file_fb_info() accessor function must be
used since it does sanity checking to make sure that the fb_info is valid.

This can happen for example if the registered framebuffer device is for a
driver that just uses a framebuffer provided by the system firmware. In
that case, the fbdev core would unregister the framebuffer device when a
real video driver is probed and ask to remove conflicting framebuffers.

The bug has been present for a long time but commit 27599aacbaef ("fbdev:
Hot-unplug firmware fb devices on forced removal") unmasked it since the
fbdev core started unregistering the framebuffers' devices associated.

Fixes: 27599aacbaef ("fbdev: Hot-unplug firmware fb devices on forced removal")
Reported-by: Maxime Ripard <maxime@cerno.tech>
Reported-by: Junxiao Chang <junxiao.chang@intel.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220502135014.377945-1-javierm@redhat.com
2 years agoLinux 5.18-rc5
Linus Torvalds [Sun, 1 May 2022 20:57:58 +0000 (13:57 -0700)]
Linux 5.18-rc5

2 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sun, 1 May 2022 18:49:32 +0000 (11:49 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Take care of faults occuring between the PARange and IPA range by
     injecting an exception

   - Fix S2 faults taken from a host EL0 in protected mode

   - Work around Oops caused by a PMU access from a 32bit guest when PMU
     has been created. This is a temporary bodge until we fix it for
     good.

  x86:

   - Fix potential races when walking host page table

   - Fix shadow page table leak when KVM runs nested

   - Work around bug in userspace when KVM synthesizes leaf 0x80000021
     on older (pre-EPYC) or Intel processors

  Generic (but affects only RISC-V):

   - Fix bad user ABI for KVM_EXIT_SYSTEM_EVENT"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: work around QEMU issue with synthetic CPUID leaves
  Revert "x86/mm: Introduce lookup_address_in_mm()"
  KVM: x86/mmu: fix potential races when walking host page table
  KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT
  KVM: x86/mmu: Do not create SPTEs for GFNs that exceed host.MAXPHYADDR
  KVM: arm64: Inject exception on out-of-IPA-range translation fault
  KVM/arm64: Don't emulate a PMU for 32-bit guests if feature not set
  KVM: arm64: Handle host stage-2 faults from 32-bit EL0

2 years agoMerge tag 'x86_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 1 May 2022 17:03:36 +0000 (10:03 -0700)]
Merge tag 'x86_urgent_for_v5.18_rc5' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - A fix to disable PCI/MSI[-X] masking for XEN_HVM guests as that is
   solely controlled by the hypervisor

 - A build fix to make the function prototype (__warn()) as visible as
   the definition itself

 - A bunch of objtool annotation fixes which have accumulated over time

 - An ORC unwinder fix to handle bad input gracefully

 - Well, we thought the microcode gets loaded in time in order to
   restore the microcode-emulated MSRs but we thought wrong. So there's
   a fix for that to have the ordering done properly

 - Add new Intel model numbers

 - A spelling fix

* tag 'x86_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/pci/xen: Disable PCI/MSI[-X] masking for XEN_HVM guests
  bug: Have __warn() prototype defined unconditionally
  x86/Kconfig: fix the spelling of 'becoming' in X86_KERNEL_IBT config
  objtool: Use offstr() to print address of missing ENDBR
  objtool: Print data address for "!ENDBR" data warnings
  x86/xen: Add ANNOTATE_NOENDBR to startup_xen()
  x86/uaccess: Add ENDBR to __put_user_nocheck*()
  x86/retpoline: Add ANNOTATE_NOENDBR for retpolines
  x86/static_call: Add ANNOTATE_NOENDBR to static call trampoline
  objtool: Enable unreachable warnings for CLANG LTO
  x86,objtool: Explicitly mark idtentry_body()s tail REACHABLE
  x86,objtool: Mark cpu_startup_entry() __noreturn
  x86,xen,objtool: Add UNWIND hint
  lib/strn*,objtool: Enforce user_access_begin() rules
  MAINTAINERS: Add x86 unwinding entry
  x86/unwind/orc: Recheck address range after stack info was updated
  x86/cpu: Load microcode during restore_processor_state()
  x86/cpu: Add new Alderlake and Raptorlake CPU model numbers

2 years agoMerge tag 'objtool_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 1 May 2022 16:34:54 +0000 (09:34 -0700)]
Merge tag 'objtool_urgent_for_v5.18_rc5' of git://git./linux/kernel/git/tip/tip

Pull objtool fixes from Borislav Petkov:
 "A bunch of objtool fixes to improve unwinding, sibling call detection,
  fallthrough detection and relocation handling of weak symbols when the
  toolchain strips section symbols"

* tag 'objtool_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix code relocs vs weak symbols
  objtool: Fix type of reloc::addend
  objtool: Fix function fallthrough detection for vmlinux
  objtool: Fix sibling call detection in alternatives
  objtool: Don't set 'jump_dest' for sibling calls
  x86/uaccess: Don't jump between functions

2 years agoMerge tag 'irq_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 1 May 2022 16:30:47 +0000 (09:30 -0700)]
Merge tag 'irq_urgent_for_v5.18_rc5' of git://git./linux/kernel/git/tip/tip

Pull irq fix from Borislav Petkov:

 - Fix locking when accessing device MSI descriptors

* tag 'irq_urgent_for_v5.18_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  bus: fsl-mc-msi: Fix MSI descriptor mutex lock for msi_first_desc()

2 years agoMerge tag 'driver-core-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 30 Apr 2022 17:24:21 +0000 (10:24 -0700)]
Merge tag 'driver-core-5.18-rc5' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are some small driver core and kernfs fixes for some reported
  problems. They include:

   - kernfs regression that is causing oopses in 5.17 and newer releases

   - topology sysfs fixes for a few small reported problems.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  kernfs: fix NULL dereferencing in kernfs_remove
  topology: Fix up build warning in topology_is_visible()
  arch_topology: Do not set llc_sibling if llc_id is invalid
  topology: make core_mask include at least cluster_siblings
  topology/sysfs: Hide PPIN on systems that do not support it.

2 years agoMerge tag 'char-misc-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
Linus Torvalds [Sat, 30 Apr 2022 17:15:57 +0000 (10:15 -0700)]
Merge tag 'char-misc-5.18-rc5' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are a small number of char/misc/other driver fixes for 5.18-rc5

  Nothing major in here, this is mostly IIO driver fixes along with some
  other small things:

   - at25 driver fix for systems without a dma-able stack

   - phy driver fixes for reported issues

   - binder driver fixes for reported issues

  All of these have been in linux-next without any reported problems"

* tag 'char-misc-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (31 commits)
  eeprom: at25: Use DMA safe buffers
  binder: Gracefully handle BINDER_TYPE_FDA objects with num_fds=0
  binder: Address corner cases in deferred copy and fixup
  phy: amlogic: fix error path in phy_g12a_usb3_pcie_probe()
  iio: imu: inv_icm42600: Fix I2C init possible nack
  iio: dac: ltc2688: fix voltage scale read
  interconnect: qcom: sdx55: Drop IP0 interconnects
  interconnect: qcom: sc7180: Drop IP0 interconnects
  phy: ti: Add missing pm_runtime_disable() in serdes_am654_probe
  phy: mapphone-mdm6600: Fix PM error handling in phy_mdm6600_probe
  phy: ti: omap-usb2: Fix error handling in omap_usb2_enable_clocks
  bus: mhi: host: pci_generic: Flush recovery worker during freeze
  bus: mhi: host: pci_generic: Add missing poweroff() PM callback
  phy: ti: tusb1210: Fix an error handling path in tusb1210_probe()
  phy: samsung: exynos5250-sata: fix missing device put in probe error paths
  phy: samsung: Fix missing of_node_put() in exynos_sata_phy_probe
  phy: ti: Fix missing of_node_put in ti_pipe3_get_sysctrl()
  phy: ti: tusb1210: Make tusb1210_chg_det_states static
  iio:dac:ad3552r: Fix an IS_ERR() vs NULL check
  iio: sx9324: Fix default precharge internal resistance register
  ...

2 years agoMerge tag 'tty-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sat, 30 Apr 2022 17:09:14 +0000 (10:09 -0700)]
Merge tag 'tty-5.18-rc5' of git://git./linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are some small serial driver fixes, and a larger number of GSM
  line discipline fixes for 5.18-rc5.

  These include:

   - lots of tiny n_gsm fixes for issues to resolve a number of reported
     problems. Seems that people are starting to actually use this code
     again.

   - 8250 driver fixes for some devices

   - imx serial driver fix

   - amba-pl011 driver fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (27 commits)
  tty: n_gsm: fix sometimes uninitialized warning in gsm_dlci_modem_output()
  serial: 8250: Correct the clock for EndRun PTP/1588 PCIe device
  serial: 8250: Also set sticky MCR bits in console restoration
  tty: n_gsm: fix software flow control handling
  tty: n_gsm: fix invalid use of MSC in advanced option
  tty: n_gsm: fix broken virtual tty handling
  Revert "serial: sc16is7xx: Clear RS485 bits in the shutdown"
  tty: n_gsm: fix missing update of modem controls after DLCI open
  serial: 8250: Fix runtime PM for start_tx() for empty buffer
  serial: imx: fix overrun interrupts in DMA mode
  serial: amba-pl011: do not time out prematurely when draining tx fifo
  tty: n_gsm: fix incorrect UA handling
  tty: n_gsm: fix reset fifo race condition
  tty: n_gsm: fix missing tty wakeup in convergence layer type 2
  tty: n_gsm: fix wrong signal octets encoding in MSC
  tty: n_gsm: fix wrong command frame length field encoding
  tty: n_gsm: fix wrong command retry handling
  tty: n_gsm: fix missing explicit ldisc flush
  tty: n_gsm: fix wrong DLCI release order
  tty: n_gsm: fix insufficient txframe size
  ...

2 years agoMerge tag 'usb-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sat, 30 Apr 2022 16:58:46 +0000 (09:58 -0700)]
Merge tag 'usb-5.18-rc5' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of small USB driver fixes for 5.18-rc5 for some
  reported issues and new quirks. They include:

   - dwc3 driver fixes

   - xhci driver fixes

   - typec driver fixes

   - new usb-serial driver ids

   - added new USB devices to existing quirk tables

   - other tiny fixes

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (31 commits)
  usb: phy: generic: Get the vbus supply
  usb: dwc3: gadget: Return proper request status
  usb: dwc3: pci: add support for the Intel Meteor Lake-P
  usb: dwc3: core: Only handle soft-reset in DCTL
  usb: gadget: configfs: clear deactivation flag in configfs_composite_unbind()
  usb: misc: eud: Fix an error handling path in eud_probe()
  usb: core: Don't hold the device lock while sleeping in do_proc_control()
  usb: dwc3: Try usb-role-switch first in dwc3_drd_init
  usb: dwc3: core: Fix tx/rx threshold settings
  usb: mtu3: fix USB 3.0 dual-role-switch from device to host
  xhci: Enable runtime PM on second Alderlake controller
  usb: dwc3: fix backwards compat with rockchip devices
  dt-bindings: usb: samsung,exynos-usb2: add missing required reg
  usb: misc: fix improper handling of refcount in uss720_probe()
  USB: Fix ehci infinite suspend-resume loop issue in zhaoxin
  usb: typec: tcpm: Fix undefined behavior due to shift overflowing the constant
  usb: typec: rt1719: Fix build error without CONFIG_POWER_SUPPLY
  usb: typec: ucsi: Fix role swapping
  usb: typec: ucsi: Fix reuse of completion structure
  usb: xhci: tegra:Fix PM usage reference leak of tegra_xusb_unpowergate_partitions
  ...

2 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 30 Apr 2022 16:47:59 +0000 (09:47 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fix from James Bottomley:
 "One fix for an endless error loop with the target driver affecting
  tapes"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: target: pscsi: Set SCF_TREAT_READ_AS_NORMAL flag only if there is valid data

2 years agoMerge tag 'soc-fixes-5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Fri, 29 Apr 2022 22:51:05 +0000 (15:51 -0700)]
Merge tag 'soc-fixes-5.18-3' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:

 - A fix for a regression caused by the previous set of bugfixes
   changing tegra and at91 pinctrl properties.

   More work is needed to figure out what this should actually be, but a
   revert makes it work for the moment.

 - Defconfig regression fixes for tegra after renamed symbols

 - Build-time warning and static checker fixes for imx, op-tee, sunxi,
   meson, at91, and omap

 - More at91 DT fixes for audio, regulator and spi nodes

 - A regression fix for Renesas Hyperflash memory probe

 - A stability fix for amlogic boards, modifying the allowed cpufreq
   states

 - Multiple fixes for system suspend on omap2+

 - DT fixes for various i.MX bugs

 - A probe error fix for imx6ull-colibri MMC

 - A MAINTAINERS file entry for samsung bug reports

* tag 'soc-fixes-5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (42 commits)
  Revert "arm: dts: at91: Fix boolean properties with values"
  bus: sunxi-rsb: Fix the return value of sunxi_rsb_device_create()
  Revert "arm64: dts: tegra: Fix boolean properties with values"
  arm64: dts: imx8mn-ddr4-evk: Describe the 32.768 kHz PMIC clock
  ARM: dts: imx6ull-colibri: fix vqmmc regulator
  MAINTAINERS: add Bug entry for Samsung and memory controller drivers
  memory: renesas-rpc-if: Fix HF/OSPI data transfer in Manual Mode
  ARM: dts: logicpd-som-lv: Fix wrong pinmuxing on OMAP35
  ARM: dts: am3517-evm: Fix misc pinmuxing
  ARM: dts: am33xx-l4: Add missing touchscreen clock properties
  ARM: dts: Fix mmc order for omap3-gta04
  ARM: dts: at91: fix pinctrl phandles
  ARM: dts: at91: sama5d4_xplained: fix pinctrl phandle name
  ARM: dts: at91: Describe regulators on at91sam9g20ek
  ARM: dts: at91: Map MCLK for wm8731 on at91sam9g20ek
  ARM: dts: at91: Fix boolean properties with values
  ARM: dts: at91: use generic node name for dataflash
  ARM: dts: at91: align SPI NOR node name with dtschema
  ARM: dts: at91: sama7g5ek: Align the impedance of the QSPI0's HSIO and PCB lines
  ARM: dts: at91: sama7g5ek: enable pull-up on flexcom3 console lines
  ...

2 years agoMerge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 29 Apr 2022 22:38:23 +0000 (15:38 -0700)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "A semi-large pile of clk driver fixes this time around.

  Nothing is touching the core so these fixes are fairly well contained
  to specific devices that use these clk drivers.

   - Some Allwinner SoC fixes to gracefully handle errors and mark an
     RTC clk as critical so that the RTC keeps ticking.

   - Fix AXI bus clks and RTC clk design for Microchip PolarFire SoC
     driver introduced this cycle. This has some devicetree bits acked
     by riscv maintainers. We're fixing it now so that the prior
     bindings aren't released in a major kernel version.

   - Remove a reset on Microchip PolarFire SoCs that broke when enabling
     CONFIG_PM.

   - Set a min/max for the Qualcomm graphics clk. This got broken by the
     clk rate range patches introduced this cycle"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: sunxi: sun9i-mmc: check return value after calling platform_get_resource()
  clk: sunxi-ng: sun6i-rtc: Mark rtc-32k as critical
  riscv: dts: microchip: reparent mpfs clocks
  clk: microchip: mpfs: add RTCREF clock control
  clk: microchip: mpfs: re-parent the configurable clocks
  dt-bindings: rtc: add refclk to mpfs-rtc
  dt-bindings: clk: mpfs: add defines for two new clocks
  dt-bindings: clk: mpfs document msspll dri registers
  riscv: dts: microchip: fix usage of fic clocks on mpfs
  clk: microchip: mpfs: mark CLK_ATHENA as critical
  clk: microchip: mpfs: fix parents for FIC clocks
  clk: qcom: clk-rcg2: fix gfx3d frequency calculation
  clk: microchip: mpfs: don't reset disabled peripherals
  clk: sunxi-ng: fix not NULL terminated coccicheck error

2 years agoMerge tag 'block-5.18-2022-04-29' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 29 Apr 2022 22:28:42 +0000 (15:28 -0700)]
Merge tag 'block-5.18-2022-04-29' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - Revert of a patch that caused timestamp issues (Tejun)

 - iocost warning fix (Tejun)

 - bfq warning fix (Jan)

* tag 'block-5.18-2022-04-29' of git://git.kernel.dk/linux-block:
  bfq: Fix warning in bfqq_request_over_limit()
  Revert "block: inherit request start time from bio for BLK_CGROUP"
  iocost: don't reset the inuse weight of under-weighted debtors

2 years agoMerge tag 'io_uring-5.18-2022-04-29' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 29 Apr 2022 21:51:57 +0000 (14:51 -0700)]
Merge tag 'io_uring-5.18-2022-04-29' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "Pretty boring:

   - three patches just adding reserved field checks (me, Eugene)

   - Fixing a potential regression with IOPOLL caused by a block change
     (Joseph)"

Boring is good.

* tag 'io_uring-5.18-2022-04-29' of git://git.kernel.dk/linux-block:
  io_uring: check that data field is 0 in ringfd unregister
  io_uring: fix uninitialized field in rw io_kiocb
  io_uring: check reserved fields for recv/recvmsg
  io_uring: check reserved fields for send/sendmsg

2 years agoMerge tag 'random-5.18-rc5-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 29 Apr 2022 21:47:17 +0000 (14:47 -0700)]
Merge tag 'random-5.18-rc5-for-linus' of git://git./linux/kernel/git/crng/random

Pull random number generator fixes from Jason Donenfeld:

 - Eric noticed that the memmove() in crng_fast_key_erasure() was bogus,
   so this has been changed to a memcpy() and the confusing situation
   clarified with a detailed comment.

 - [Half]SipHash documentation updates from Bagas and Eric, after Eric
   pointed out that the use of HalfSipHash in random.c made a bit of the
   text potentially misleading.

* tag 'random-5.18-rc5-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
  Documentation: siphash: disambiguate HalfSipHash algorithm from hsiphash functions
  Documentation: siphash: enclose HalfSipHash usage example in the literal block
  Documentation: siphash: convert danger note to warning for HalfSipHash
  random: document crng_fast_key_erasure() destination possibility

2 years agoMerge tag 'ceph-for-5.18-rc5' of https://github.com/ceph/ceph-client
Linus Torvalds [Fri, 29 Apr 2022 21:37:35 +0000 (14:37 -0700)]
Merge tag 'ceph-for-5.18-rc5' of https://github.com/ceph/ceph-client

Pull ceph client fixes from Ilya Dryomov:
 "A fix for a NULL dereference that turns out to be easily triggerable
  by fsync (marked for stable) and a false positive WARN and snap_rwsem
  locking fixups"

* tag 'ceph-for-5.18-rc5' of https://github.com/ceph/ceph-client:
  ceph: fix possible NULL pointer dereference for req->r_session
  ceph: remove incorrect session state check
  ceph: get snap_rwsem read lock in handle_cap_export for ceph_add_cap
  libceph: disambiguate cluster/pool full log message

2 years agoRevert "arm: dts: at91: Fix boolean properties with values"
Arnd Bergmann [Fri, 29 Apr 2022 21:09:49 +0000 (23:09 +0200)]
Revert "arm: dts: at91: Fix boolean properties with values"

This reverts commit 0dc23d1a8e17, which caused another regression
as the pinctrl code actually expects an integer value of 0 or 1
rather than a simple boolean property.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoKVM: x86: work around QEMU issue with synthetic CPUID leaves
Paolo Bonzini [Fri, 29 Apr 2022 18:43:04 +0000 (14:43 -0400)]
KVM: x86: work around QEMU issue with synthetic CPUID leaves

Synthesizing AMD leaves up to 0x80000021 caused problems with QEMU,
which assumes the *host* CPUID[0x80000000].EAX is higher or equal
to what KVM_GET_SUPPORTED_CPUID reports.

This causes QEMU to issue bogus host CPUIDs when preparing the input
to KVM_SET_CPUID2.  It can even get into an infinite loop, which is
only terminated by an abort():

   cpuid_data is full, no space for cpuid(eax:0x8000001d,ecx:0x3e)

To work around this, only synthesize those leaves if 0x8000001d exists
on the host.  The synthetic 0x80000021 leaf is mostly useful on Zen2,
which satisfies the condition.

Fixes: f144c49e8c39 ("KVM: x86: synthesize CPUID leaf 0x80000021h if useful")
Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agoMerge tag 'perf-tools-fixes-for-v5.18-2022-04-29' of git://git.kernel.org/pub/scm...
Linus Torvalds [Fri, 29 Apr 2022 18:34:07 +0000 (11:34 -0700)]
Merge tag 'perf-tools-fixes-for-v5.18-2022-04-29' of git://git./linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix Intel PT (Processor Trace) timeless decoding with perf.data
   directory.

 - ARM SPE (Statistical Profiling Extensions) address fixes, for
   synthesized events and for SPE events with physical addresses. Add a
   simple 'perf test' entry to make sure this doesn't regress.

 - Remove arch specific processing of kallsyms data to fixup symbol end
   address, fixing excessive memory consumption in the annotation code.

* tag 'perf-tools-fixes-for-v5.18-2022-04-29' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf symbol: Remove arch__symbols__fixup_end()
  perf symbol: Update symbols__fixup_end()
  perf symbol: Pass is_kallsyms to symbols__fixup_end()
  perf test: Add perf_event_attr test for Arm SPE
  perf arm-spe: Fix SPE events with phys addresses
  perf arm-spe: Fix addresses of synthesized SPE events
  perf intel-pt: Fix timeless decoding with perf.data directory

2 years agoMerge tag 'riscv-for-linus-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 29 Apr 2022 17:44:58 +0000 (10:44 -0700)]
Merge tag 'riscv-for-linus-5.18-rc5' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix to properly ensure a single CPU is running during patch_text().

 - A defconfig update to include RPMSG_CTRL when RPMSG_CHAR was set,
   necessary after a recent refactoring.

* tag 'riscv-for-linus-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: configs: Configs that had RPMSG_CHAR now get RPMSG_CTRL
  riscv: patch_text: Fixup last cpu should be master

2 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 29 Apr 2022 17:36:47 +0000 (10:36 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fix from Will Deacon:
 "Rename and reallocate the PT_ARM_MEMTAG_MTE ELF segment type.

  This is a fix to the MTE ELF ABI for a bug that was added during the
  most recent merge window as part of the coredump support.

  The issue is that the value assigned to the new PT_ARM_MEMTAG_MTE
  segment type has already been allocated to PT_AARCH64_UNWIND by the
  ELF ABI, so we've bumped the value and changed the name of the
  identifier to be better aligned with the existing one"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  elf: Fix the arm64 MTE ELF segment name and value

2 years agoRevert "x86/mm: Introduce lookup_address_in_mm()"
Sean Christopherson [Fri, 29 Apr 2022 14:57:53 +0000 (07:57 -0700)]
Revert "x86/mm: Introduce lookup_address_in_mm()"

Drop lookup_address_in_mm() now that KVM is providing it's own variant
of lookup_address_in_pgd() that is safe for use with user addresses, e.g.
guards against page tables being torn down.  A variant that provides a
non-init mm is inherently dangerous and flawed, as the only reason to use
an mm other than init_mm is to walk a userspace mapping, and
lookup_address_in_pgd() does not play nice with userspace mappings, e.g.
doesn't disable IRQs to block TLB shootdowns and doesn't use READ_ONCE()
to ensure an upper level entry isn't converted to a huge page between
checking the PAGE_SIZE bit and grabbing the address of the next level
down.

This reverts commit 13c72c060f1ba6f4eddd7b1c4f52a8aded43d6d9.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <YmwIi3bXr/1yhYV/@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agoMerge branch 'kvm-fixes-for-5.18-rc5' into HEAD
Paolo Bonzini [Fri, 29 Apr 2022 10:38:56 +0000 (06:38 -0400)]
Merge branch 'kvm-fixes-for-5.18-rc5' into HEAD

Fixes for (relatively) old bugs, to be merged in both the -rc and next
development trees:

* Fix potential races when walking host page table

* Fix bad user ABI for KVM_EXIT_SYSTEM_EVENT

* Fix shadow page table leak when KVM runs nested

2 years agoKVM: x86/mmu: fix potential races when walking host page table
Mingwei Zhang [Fri, 29 Apr 2022 03:17:57 +0000 (03:17 +0000)]
KVM: x86/mmu: fix potential races when walking host page table

KVM uses lookup_address_in_mm() to detect the hugepage size that the host
uses to map a pfn.  The function suffers from several issues:

 - no usage of READ_ONCE(*). This allows multiple dereference of the same
   page table entry. The TOCTOU problem because of that may cause KVM to
   incorrectly treat a newly generated leaf entry as a nonleaf one, and
   dereference the content by using its pfn value.

 - the information returned does not match what KVM needs; for non-present
   entries it returns the level at which the walk was terminated, as long
   as the entry is not 'none'.  KVM needs level information of only 'present'
   entries, otherwise it may regard a non-present PXE entry as a present
   large page mapping.

 - the function is not safe for mappings that can be torn down, because it
   does not disable IRQs and because it returns a PTE pointer which is never
   safe to dereference after the function returns.

So implement the logic for walking host page tables directly in KVM, and
stop using lookup_address_in_mm().

Cc: Sean Christopherson <seanjc@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Mingwei Zhang <mizhang@google.com>
Message-Id: <20220429031757.2042406-1-mizhang@google.com>
[Inline in host_pfn_mapping_level, ensure no semantic change for its
 callers. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agoKVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT
Paolo Bonzini [Fri, 22 Apr 2022 10:30:13 +0000 (12:30 +0200)]
KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT

When KVM_EXIT_SYSTEM_EVENT was introduced, it included a flags
member that at the time was unused.  Unfortunately this extensibility
mechanism has several issues:

- x86 is not writing the member, so it would not be possible to use it
  on x86 except for new events

- the member is not aligned to 64 bits, so the definition of the
  uAPI struct is incorrect for 32- on 64-bit userspace.  This is a
  problem for RISC-V, which supports CONFIG_KVM_COMPAT, but fortunately
  usage of flags was only introduced in 5.18.

Since padding has to be introduced, place a new field in there
that tells if the flags field is valid.  To allow further extensibility,
in fact, change flags to an array of 16 values, and store how many
of the values are valid.  The availability of the new ndata field
is tied to a system capability; all architectures are changed to
fill in the field.

To avoid breaking compilation of userspace that was using the flags
field, provide a userspace-only union to overlap flags with data[0].
The new field is placed at the same offset for both 32- and 64-bit
userspace.

Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Peter Gonda <pgonda@google.com>
Cc: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reported-by: kernel test robot <lkp@intel.com>
Message-Id: <20220422103013.34832-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agoKVM: x86/mmu: Do not create SPTEs for GFNs that exceed host.MAXPHYADDR
Sean Christopherson [Thu, 28 Apr 2022 23:34:16 +0000 (23:34 +0000)]
KVM: x86/mmu: Do not create SPTEs for GFNs that exceed host.MAXPHYADDR

Disallow memslots and MMIO SPTEs whose gpa range would exceed the host's
MAXPHYADDR, i.e. don't create SPTEs for gfns that exceed host.MAXPHYADDR.
The TDP MMU bounds its zapping based on host.MAXPHYADDR, and so if the
guest, possibly with help from userspace, manages to coerce KVM into
creating a SPTE for an "impossible" gfn, KVM will leak the associated
shadow pages (page tables):

  WARNING: CPU: 10 PID: 1122 at arch/x86/kvm/mmu/tdp_mmu.c:57
                                kvm_mmu_uninit_tdp_mmu+0x4b/0x60 [kvm]
  Modules linked in: kvm_intel kvm irqbypass
  CPU: 10 PID: 1122 Comm: set_memory_regi Tainted: G        W         5.18.0-rc1+ #293
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
  RIP: 0010:kvm_mmu_uninit_tdp_mmu+0x4b/0x60 [kvm]
  Call Trace:
   <TASK>
   kvm_arch_destroy_vm+0x130/0x1b0 [kvm]
   kvm_destroy_vm+0x162/0x2d0 [kvm]
   kvm_vm_release+0x1d/0x30 [kvm]
   __fput+0x82/0x240
   task_work_run+0x5b/0x90
   exit_to_user_mode_prepare+0xd2/0xe0
   syscall_exit_to_user_mode+0x1d/0x40
   entry_SYSCALL_64_after_hwframe+0x44/0xae
   </TASK>

On bare metal, encountering an impossible gpa in the page fault path is
well and truly impossible, barring CPU bugs, as the CPU will signal #PF
during the gva=>gpa translation (or a similar failure when stuffing a
physical address into e.g. the VMCS/VMCB).  But if KVM is running as a VM
itself, the MAXPHYADDR enumerated to KVM may not be the actual MAXPHYADDR
of the underlying hardware, in which case the hardware will not fault on
the illegal-from-KVM's-perspective gpa.

Alternatively, KVM could continue allowing the dodgy behavior and simply
zap the max possible range.  But, for hosts with MAXPHYADDR < 52, that's
a (minor) waste of cycles, and more importantly, KVM can't reasonably
support impossible memslots when running on bare metal (or with an
accurate MAXPHYADDR as a VM).  Note, limiting the overhead by checking if
KVM is running as a guest is not a safe option as the host isn't required
to announce itself to the guest in any way, e.g. doesn't need to set the
HYPERVISOR CPUID bit.

A second alternative to disallowing the memslot behavior would be to
disallow creating a VM with guest.MAXPHYADDR > host.MAXPHYADDR.  That
restriction is undesirable as there are legitimate use cases for doing
so, e.g. using the highest host.MAXPHYADDR out of a pool of heterogeneous
systems so that VMs can be migrated between hosts with different
MAXPHYADDRs without running afoul of the allow_smaller_maxphyaddr mess.

Note that any guest.MAXPHYADDR is valid with shadow paging, and it is
even useful in order to test KVM with MAXPHYADDR=52 (i.e. without
any reserved physical address bits).

The now common kvm_mmu_max_gfn() is inclusive instead of exclusive.
The memslot and TDP MMU code want an exclusive value, but the name
implies the returned value is inclusive, and the MMIO path needs an
inclusive check.

Fixes: faaf05b00aec ("kvm: x86/mmu: Support zapping SPTEs in the TDP MMU")
Fixes: 524a1e4e381f ("KVM: x86/mmu: Don't leak non-leaf SPTEs when zapping all SPTEs")
Cc: stable@vger.kernel.org
Cc: Maxim Levitsky <mlevitsk@redhat.com>
Cc: Ben Gardon <bgardon@google.com>
Cc: David Matlack <dmatlack@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220428233416.2446833-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 years agoMerge tag 'kvmarm-fixes-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Paolo Bonzini [Fri, 29 Apr 2022 16:32:14 +0000 (12:32 -0400)]
Merge tag 'kvmarm-fixes-5.18-2' of git://git./linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 5.18, take #2

- Take care of faults occuring between the PARange and
  IPA range by injecting an exception

- Fix S2 faults taken from a host EL0 in protected mode

- Work around Oops caused by a PMU access from a 32bit
  guest when PMU has been created. This is a temporary
  bodge until we fix it for good.

2 years agoMerge tag 'tegra-for-5.18-arm-defconfig-fixes' of git://git.kernel.org/pub/scm/linux...
Arnd Bergmann [Fri, 29 Apr 2022 14:41:21 +0000 (16:41 +0200)]
Merge tag 'tegra-for-5.18-arm-defconfig-fixes' of git://git./linux/kernel/git/tegra/linux into arm/fixes

ARM: tegra: Default configuration fixes for v5.18

This contains two updates to the default configuration needed because of
a Kconfig symbol name change. This fixes a failure that was detected in
the NVIDIA automated test farm.

* tag 'tegra-for-5.18-arm-defconfig-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  ARM: config: multi v7: Enable NVIDIA Tegra video decoder driver
  ARM: tegra_defconfig: Update CONFIG_TEGRA_VDE option

Link: https://lore.kernel.org/r/20220429080626.494150-1-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoio_uring: check that data field is 0 in ringfd unregister
Eugene Syromiatnikov [Fri, 29 Apr 2022 14:22:18 +0000 (16:22 +0200)]
io_uring: check that data field is 0 in ringfd unregister

Only allow data field to be 0 in struct io_uring_rsrc_update user
arguments to allow for future possible usage.

Fixes: e7a6c00dc77a ("io_uring: add support for registering ring file descriptors")
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Link: https://lore.kernel.org/r/20220429142218.GA28696@asgard.redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoMerge tag 'imx-fixes-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawngu...
Arnd Bergmann [Fri, 29 Apr 2022 14:23:30 +0000 (16:23 +0200)]
Merge tag 'imx-fixes-5.18-2' of git://git./linux/kernel/git/shawnguo/linux into arm/fixes

i.MX fixes for 5.18, 2nd round:

- Fix one sparse warning on imx-weim driver.
- Fix vqmmc regulator to get UHS-I mode work on imx6ull-colibri board.
- Add missing 32.768 kHz PMIC clock for imx8mn-ddr4-evk board to fix
  bd718xx-clk probe error.

* tag 'imx-fixes-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  arm64: dts: imx8mn-ddr4-evk: Describe the 32.768 kHz PMIC clock
  ARM: dts: imx6ull-colibri: fix vqmmc regulator
  bus: imx-weim: make symbol 'weim_of_notifier' static

Link: https://lore.kernel.org/r/20220426013427.GB14615@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoMerge tag 'sunxi-fixes-for-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Arnd Bergmann [Fri, 29 Apr 2022 14:23:00 +0000 (16:23 +0200)]
Merge tag 'sunxi-fixes-for-5.18-1' of git://git./linux/kernel/git/sunxi/linux into arm/fixes

Fix return value in RSB bus driver

* tag 'sunxi-fixes-for-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  bus: sunxi-rsb: Fix the return value of sunxi_rsb_device_create()

Link: https://lore.kernel.org/r/Ymbkd+/dDmRJz66w@kista.localdomain
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agobfq: Fix warning in bfqq_request_over_limit()
Jan Kara [Thu, 7 Apr 2022 14:07:38 +0000 (16:07 +0200)]
bfq: Fix warning in bfqq_request_over_limit()

People are occasionally reporting a warning bfqq_request_over_limit()
triggering reporting that BFQ's idea of cgroup hierarchy (and its depth)
does not match what generic blkcg code thinks. This can actually happen
when bfqq gets moved between BFQ groups while bfqq_request_over_limit()
is running. Make sure the code is safe against BFQ queue being moved to
a different BFQ group.

Fixes: 76f1df88bbc2 ("bfq: Limit number of requests consumed by each cgroup")
CC: stable@vger.kernel.org
Link: https://lore.kernel.org/all/CAJCQCtTw_2C7ZSz7as5Gvq=OmnDiio=HRkQekqWpKot84sQhFA@mail.gmail.com/
Reported-by: Chris Murphy <lists@colorremedies.com>
Reported-by: "yukuai (C)" <yukuai3@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220407140738.9723-1-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agox86/pci/xen: Disable PCI/MSI[-X] masking for XEN_HVM guests
Thomas Gleixner [Thu, 28 Apr 2022 13:50:54 +0000 (15:50 +0200)]
x86/pci/xen: Disable PCI/MSI[-X] masking for XEN_HVM guests

When a XEN_HVM guest uses the XEN PIRQ/Eventchannel mechanism, then
PCI/MSI[-X] masking is solely controlled by the hypervisor, but contrary to
XEN_PV guests this does not disable PCI/MSI[-X] masking in the PCI/MSI
layer.

This can lead to a situation where the PCI/MSI layer masks an MSI[-X]
interrupt and the hypervisor grants the write despite the fact that it
already requested the interrupt. As a consequence interrupt delivery on the
affected device is not happening ever.

Set pci_msi_ignore_mask to prevent that like it's done for XEN_PV guests
already.

Fixes: 809f9267bbab ("xen: map MSIs into pirqs")
Reported-by: Jeremi Piotrowski <jpiotrowski@linux.microsoft.com>
Reported-by: Dusty Mabe <dustymabe@redhat.com>
Reported-by: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Noah Meyerhans <noahm@debian.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87tuaduxj5.ffs@tglx
2 years agoMerge tag 'drm-fixes-2022-04-29' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 29 Apr 2022 01:00:34 +0000 (18:00 -0700)]
Merge tag 'drm-fixes-2022-04-29' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Another relatively quiet week, amdgpu leads the way, some i915 display
  fixes, and a single sunxi fix.

  amdgpu:
   - Runtime pm fix
   - DCN memory leak fix in error path
   - SI DPM deadlock fix
   - S0ix fix

  amdkfd:
   - GWS fix
   - GWS support for CRIU

  i915:
   - Fix #5284: Backlight control regression on XMG Core 15 e21
   - Fix black display plane on Acer One AO532h
   - Two smaller display fixes

  sunxi:
   - Single fix removing applying PHYS_OFFSET twice"

* tag 'drm-fixes-2022-04-29' of git://anongit.freedesktop.org/drm/drm:
  drm/amdgpu: keep mmhub clock gating being enabled during s2idle suspend
  drm/amd/pm: fix the deadlock issue observed on SI
  drm/amd/display: Fix memory leak in dcn21_clock_source_create
  drm/amdgpu: don't runtime suspend if there are displays attached (v3)
  drm/amdkfd: CRIU add support for GWS queues
  drm/amdkfd: Fix GWS queue count
  drm/sun4i: Remove obsolete references to PHYS_OFFSET
  drm/i915/fbc: Consult hw.crtc instead of uapi.crtc
  drm/i915: Fix SEL_FETCH_PLANE_*(PIPE_B+) register addresses
  drm/i915: Check EDID for HDR static metadata when choosing blc
  drm/i915: Fix DISP_POS_Y and DISP_HEIGHT defines

2 years agoMerge tag 'amd-drm-fixes-5.18-2022-04-27' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Fri, 29 Apr 2022 00:27:04 +0000 (10:27 +1000)]
Merge tag 'amd-drm-fixes-5.18-2022-04-27' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-5.18-2022-04-27:

amdgpu:
- Runtime pm fix
- DCN memory leak fix in error path
- SI DPM deadlock fix
- S0ix fix

amdkfd:
- GWS fix
- GWS support for CRIU

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220428023232.5794-1-alexander.deucher@amd.com
2 years agoMerge tag 'drm-intel-fixes-2022-04-28' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Fri, 29 Apr 2022 00:17:46 +0000 (10:17 +1000)]
Merge tag 'drm-intel-fixes-2022-04-28' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix #5284: Backlight control regression on XMG Core 15 e21
- Fix black display plane on Acer One AO532h
- Two smaller display fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Ymotel5VfZUrJahf@jlahtine-mobl.ger.corp.intel.com
2 years agoMerge tag 'drm-misc-fixes-2022-04-27' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Fri, 29 Apr 2022 00:02:04 +0000 (10:02 +1000)]
Merge tag 'drm-misc-fixes-2022-04-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

drm-misc-fixes for v5.18-rc5:
- Single fix removing applying PHYS_OFFSET twice in sunxi.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f692bb62-5620-1868-91b7-dffb8d6f9175@linux.intel.com
2 years agoMerge tag 'net-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 28 Apr 2022 19:34:50 +0000 (12:34 -0700)]
Merge tag 'net-5.18-rc5' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bluetooth, bpf and netfilter.

  Current release - new code bugs:

   - bridge: switchdev: check br_vlan_group() return value

   - use this_cpu_inc() to increment net->core_stats, fix preempt-rt

  Previous releases - regressions:

   - eth: stmmac: fix write to sgmii_adapter_base

  Previous releases - always broken:

   - netfilter: nf_conntrack_tcp: re-init for syn packets only,
     resolving issues with TCP fastopen

   - tcp: md5: fix incorrect tcp_header_len for incoming connections

   - tcp: fix F-RTO may not work correctly when receiving DSACK

   - tcp: ensure use of most recently sent skb when filling rate samples

   - tcp: fix potential xmit stalls caused by TCP_NOTSENT_LOWAT

   - virtio_net: fix wrong buf address calculation when using xdp

   - xsk: fix forwarding when combining copy mode with busy poll

   - xsk: fix possible crash when multiple sockets are created

   - bpf: lwt: fix crash when using bpf_skb_set_tunnel_key() from
     bpf_xmit lwt hook

   - sctp: null-check asoc strreset_chunk in sctp_generate_reconf_event

   - wireguard: device: check for metadata_dst with skb_valid_dst()

   - netfilter: update ip6_route_me_harder to consider L3 domain

   - gre: make o_seqno start from 0 in native mode

   - gre: switch o_seqno to atomic to prevent races in collect_md mode

  Misc:

   - add Eric Dumazet to networking maintainers

   - dt: dsa: realtek: remove realtek,rtl8367s string

   - netfilter: flowtable: Remove the empty file"

* tag 'net-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (65 commits)
  tcp: fix F-RTO may not work correctly when receiving DSACK
  Revert "ibmvnic: Add ethtool private flag for driver-defined queue limits"
  net: enetc: allow tc-etf offload even with NETIF_F_CSUM_MASK
  ixgbe: ensure IPsec VF<->PF compatibility
  MAINTAINERS: Update BNXT entry with firmware files
  netfilter: nft_socket: only do sk lookups when indev is available
  net: fec: add missing of_node_put() in fec_enet_init_stop_mode()
  bnx2x: fix napi API usage sequence
  tls: Skip tls_append_frag on zero copy size
  Add Eric Dumazet to networking maintainers
  netfilter: conntrack: fix udp offload timeout sysctl
  netfilter: nf_conntrack_tcp: re-init for syn packets only
  net: dsa: lantiq_gswip: Don't set GSWIP_MII_CFG_RMII_CLK
  net: Use this_cpu_inc() to increment net->core_stats
  Bluetooth: hci_sync: Cleanup hci_conn if it cannot be aborted
  Bluetooth: hci_event: Fix creating hci_conn object on error status
  Bluetooth: hci_event: Fix checking for invalid handle on error status
  ice: fix use-after-free when deinitializing mailbox snapshot
  ice: wait 5 s for EMP reset after firmware flash
  ice: Protect vf_state check by cfg_lock in ice_vc_process_vf_msg()
  ...

2 years agoio_uring: fix uninitialized field in rw io_kiocb
Joseph Ravichandran [Thu, 28 Apr 2022 16:57:52 +0000 (12:57 -0400)]
io_uring: fix uninitialized field in rw io_kiocb

io_rw_init_file does not initialize kiocb->private, so when iocb_bio_iopoll
reads kiocb->private it can contain uninitialized data.

Fixes: 3e08773c3841 ("block: switch polling to be bio based")
Signed-off-by: Joseph Ravichandran <jravi@mit.edu>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoMerge tag 'thermal-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Thu, 28 Apr 2022 18:57:00 +0000 (11:57 -0700)]
Merge tag 'thermal-5.18-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull thermal control fixes from Rafael Wysocki:
 "These take back recent chages that started to confuse users and fix up
  an attr.show callback prototype in a driver.

  Specifics:

   - Stop warning about deprecation of the userspace thermal governor
     and cooling device status interface, because there are cases in
     which user space has to drive thermal management with the help of
     them (Daniel Lezcano)

   - Fix attr.show callback prototype in the int340x thermal driver
     (Kees Cook)"

* tag 'thermal-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal/governor: Remove deprecated information
  Revert "thermal/core: Deprecate changing cooling device state from userspace"
  thermal: int340x: Fix attr.show callback prototype

2 years agoMerge tag 'pm-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Thu, 28 Apr 2022 18:50:21 +0000 (11:50 -0700)]
Merge tag 'pm-5.18-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix up recent intel_idle driver changes and fix some ARM cpufreq
  driver issues.

  Specifics:

   - Fix issues with the Qualcomm's cpufreq driver (Dmitry Baryshkov,
     Vladimir Zapolskiy).

   - Fix memory leak with the Sun501 driver (Xiaobing Luo).

   - Make intel_idle enable C1E promotion on all CPUs when C1E is
     preferred to C1 (Artem Bityutskiy).

   - Make C6 optimization on Sapphire Rapids added recently work as
     expected if both C1E and C1 are "preferred" (Artem Bityutskiy)"

* tag 'pm-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  intel_idle: Fix SPR C6 optimization
  intel_idle: Fix the 'preferred_cstates' module parameter
  cpufreq: qcom-cpufreq-hw: Clear dcvs interrupts
  cpufreq: fix memory leak in sun50i_cpufreq_nvmem_probe
  cpufreq: qcom-cpufreq-hw: Fix throttle frequency value on EPSS platforms
  cpufreq: qcom-hw: provide online/offline operations
  cpufreq: qcom-hw: fix the opp entries refcounting
  cpufreq: qcom-hw: fix the race between LMH worker and cpuhp
  cpufreq: qcom-hw: drop affinity hint before freeing the IRQ

2 years agoMerge tag 'acpi-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Thu, 28 Apr 2022 18:37:20 +0000 (11:37 -0700)]
Merge tag 'acpi-5.18-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael WysockiL
 "These fix up the ACPI processor driver after a change made during the
  5.16 cycle that inadvertently broke falling back to shallower C-states
  when C3 cannot be used.

  Specifics:

   - Make the ACPI processor driver avoid falling back to C3 type of
     C-states when C3 cannot be requested (Ville Syrjälä)

   - Revert a quirk that is not necessary any more after fixing the
     underlying issue properly (Ville Syrjälä)"

* tag 'acpi-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPI: processor: idle: fix lockup regression on 32-bit ThinkPad T40"
  ACPI: processor: idle: Avoid falling back to C3 type C-states

2 years agoMerge tag 'platform-drivers-x86-v5.18-3' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 28 Apr 2022 18:13:00 +0000 (11:13 -0700)]
Merge tag 'platform-drivers-x86-v5.18-3' of git://git./linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:
 "Highlights:

   - asus-wmi bug-fixes

   - intel-sdsu bug-fixes

   - build (warning) fixes

   - couple of hw-id additions"

* tag 'platform-drivers-x86-v5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86/intel: pmc/core: change pmc_lpm_modes to static
  platform/x86/intel/sdsi: Fix bug in multi packet reads
  platform/x86/intel/sdsi: Poll on ready bit for writes
  platform/x86/intel/sdsi: Handle leaky bucket
  platform/x86: intel-uncore-freq: Prevent driver loading in guests
  platform/x86: gigabyte-wmi: added support for B660 GAMING X DDR4 motherboard
  platform/x86: dell-laptop: Add quirk entry for Latitude 7520
  platform/x86: asus-wmi: Fix driver not binding when fan curve control probe fails
  platform/x86: asus-wmi: Potential buffer overflow in asus_wmi_evaluate_method_buf()
  tools/power/x86/intel-speed-select: fix build failure when using -Wl,--as-needed

2 years agoMerge tag 'regulator-fix-v5.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 28 Apr 2022 18:07:49 +0000 (11:07 -0700)]
Merge tag 'regulator-fix-v5.18-rc4' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "A minor fix for the DT binding documentation of the rt5190a driver"

* tag 'regulator-fix-v5.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: dt-bindings: Revise the rt5190a buck/ldo description

2 years agotcp: fix F-RTO may not work correctly when receiving DSACK
Pengcheng Yang [Tue, 26 Apr 2022 10:03:39 +0000 (18:03 +0800)]
tcp: fix F-RTO may not work correctly when receiving DSACK

Currently DSACK is regarded as a dupack, which may cause
F-RTO to incorrectly enter "loss was real" when receiving
DSACK.

Packetdrill to demonstrate:

// Enable F-RTO and TLP
    0 `sysctl -q net.ipv4.tcp_frto=2`
    0 `sysctl -q net.ipv4.tcp_early_retrans=3`
    0 `sysctl -q net.ipv4.tcp_congestion_control=cubic`

// Establish a connection
   +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
   +0 bind(3, ..., ...) = 0
   +0 listen(3, 1) = 0

// RTT 10ms, RTO 210ms
  +.1 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
   +0 > S. 0:0(0) ack 1 <...>
 +.01 < . 1:1(0) ack 1 win 257
   +0 accept(3, ..., ...) = 4

// Send 2 data segments
   +0 write(4, ..., 2000) = 2000
   +0 > P. 1:2001(2000) ack 1

// TLP
+.022 > P. 1001:2001(1000) ack 1

// Continue to send 8 data segments
   +0 write(4, ..., 10000) = 10000
   +0 > P. 2001:10001(8000) ack 1

// RTO
+.188 > . 1:1001(1000) ack 1

// The original data is acked and new data is sent(F-RTO step 2.b)
   +0 < . 1:1(0) ack 2001 win 257
   +0 > P. 10001:12001(2000) ack 1

// D-SACK caused by TLP is regarded as a dupack, this results in
// the incorrect judgment of "loss was real"(F-RTO step 3.a)
+.022 < . 1:1(0) ack 2001 win 257 <sack 1001:2001,nop,nop>

// Never-retransmitted data(3001:4001) are acked and
// expect to switch to open state(F-RTO step 3.b)
   +0 < . 1:1(0) ack 4001 win 257
+0 %{ assert tcpi_ca_state == 0, tcpi_ca_state }%

Fixes: e33099f96d99 ("tcp: implement RFC5682 F-RTO")
Signed-off-by: Pengcheng Yang <yangpc@wangsu.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Tested-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/1650967419-2150-1-git-send-email-yangpc@wangsu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Jakub Kicinski [Thu, 28 Apr 2022 16:55:59 +0000 (09:55 -0700)]
Merge git://git./linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

1) Fix incorrect TCP connection tracking window reset for non-syn
   packets, from Florian Westphal.

2) Incorrect dependency on CONFIG_NFT_FLOW_OFFLOAD, from Volodymyr Mytnyk.

3) Fix nft_socket from the output path, from Florian Westphal.

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nft_socket: only do sk lookups when indev is available
  netfilter: conntrack: fix udp offload timeout sysctl
  netfilter: nf_conntrack_tcp: re-init for syn packets only
====================

Link: https://lore.kernel.org/r/20220428142109.38726-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'gfs2-v5.18-rc4-fix2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 28 Apr 2022 16:50:29 +0000 (09:50 -0700)]
Merge tag 'gfs2-v5.18-rc4-fix2' of git://git./linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 fix from Andreas Gruenbacher:

 - No short reads or writes upon glock contention

* tag 'gfs2-v5.18-rc4-fix2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: No short reads or writes upon glock contention

2 years agoRevert "ibmvnic: Add ethtool private flag for driver-defined queue limits"
Dany Madden [Wed, 27 Apr 2022 23:51:46 +0000 (18:51 -0500)]
Revert "ibmvnic: Add ethtool private flag for driver-defined queue limits"

This reverts commit 723ad916134784b317b72f3f6cf0f7ba774e5dae

When client requests channel or ring size larger than what the server
can support the server will cap the request to the supported max. So,
the client would not be able to successfully request resources that
exceed the server limit.

Fixes: 723ad9161347 ("ibmvnic: Add ethtool private flag for driver-defined queue limits")
Signed-off-by: Dany Madden <drt@linux.ibm.com>
Link: https://lore.kernel.org/r/20220427235146.23189-1-drt@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agonet: enetc: allow tc-etf offload even with NETIF_F_CSUM_MASK
Vladimir Oltean [Wed, 27 Apr 2022 20:30:17 +0000 (23:30 +0300)]
net: enetc: allow tc-etf offload even with NETIF_F_CSUM_MASK

The Time-Specified Departure feature is indeed mutually exclusive with
TX IP checksumming in ENETC, but TX checksumming in itself is broken and
was removed from this driver in commit 82728b91f124 ("enetc: Remove Tx
checksumming offload code").

The blamed commit declared NETIF_F_HW_CSUM in dev->features to comply
with software TSO's expectations, and still did the checksumming in
software by calling skb_checksum_help(). So there isn't any restriction
for the Time-Specified Departure feature.

However, enetc_setup_tc_txtime() doesn't understand that, and blindly
looks for NETIF_F_CSUM_MASK.

Instead of checking for things which can literally never happen in the
current code base, just remove the check and let the driver offload
tc-etf qdiscs.

Fixes: acede3c5dad5 ("net: enetc: declare NETIF_F_HW_CSUM and do it in software")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220427203017.1291634-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoixgbe: ensure IPsec VF<->PF compatibility
Leon Romanovsky [Wed, 27 Apr 2022 17:31:52 +0000 (10:31 -0700)]
ixgbe: ensure IPsec VF<->PF compatibility

The VF driver can forward any IPsec flags and such makes the function
is not extendable and prone to backward/forward incompatibility.

If new software runs on VF, it won't know that PF configured something
completely different as it "knows" only XFRM_OFFLOAD_INBOUND flag.

Fixes: eda0333ac293 ("ixgbe: add VF IPsec management")
Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Shannon Nelson <snelson@pensando.io>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220427173152.443102-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge tag 'xfs-5.18-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Thu, 28 Apr 2022 16:37:56 +0000 (09:37 -0700)]
Merge tag 'xfs-5.18-fixes-1' of git://git./fs/xfs/xfs-linux

Pull xfs fixes from Dave Chinner:

 - define buffer bit flags as unsigned to fix gcc-5 + c11 warnings

 - remove redundant XFS fields from MAINTAINERS

 - fix inode buffer locking order regression

* tag 'xfs-5.18-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: reorder iunlink remove operation in xfs_ifree
  MAINTAINERS: update IOMAP FILESYSTEM LIBRARY and XFS FILESYSTEM
  xfs: convert buffer flags to unsigned.

2 years agoMAINTAINERS: Update BNXT entry with firmware files
Florian Fainelli [Wed, 27 Apr 2022 16:36:06 +0000 (09:36 -0700)]
MAINTAINERS: Update BNXT entry with firmware files

There appears to be a maintainer gap for BNXT TEE firmware files which
causes some patches to be missed. Update the entry for the BNXT Ethernet
controller with its companion firmware files.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20220427163606.126154-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge branch 'thermal-int340x'
Rafael J. Wysocki [Thu, 28 Apr 2022 14:51:24 +0000 (16:51 +0200)]
Merge branch 'thermal-int340x'

Merge a fix for the attr.show callback prototype in the int340x thermal
driver (Kees Cook).

* thermal-int340x:
  thermal: int340x: Fix attr.show callback prototype

2 years agoMerge tag 'iio-fixes-for-5.18a' of https://git.kernel.org/pub/scm/linux/kernel/git...
Greg Kroah-Hartman [Thu, 28 Apr 2022 14:35:55 +0000 (16:35 +0200)]
Merge tag 'iio-fixes-for-5.18a' of https://git./linux/kernel/git/jic23/iio

Pull set of IIO fixes for 5.18 from Jonathan Cameron:
  "1st set of IIO fixes for the 5.18 cycle

  ad3552r:
   - Fix a bug with error codes being stored in unsigned local variable.
   - Fix IS_ERR when value is either NULL or not rather than ERR_PTR
  ad5446
   - Fix shifting of read_raw value.
  ad5592r
   - Fix missing return value being set for a fwnode property read.
  ad7280a
   - Wrong variable being used to set thresholds.
  admv8818
   - Kconfig dependency fix.
  ak8975
   - Missing regulator disable in error path.
  bmi160
   - Disable regulators in an error path.
  dac5571
   - Fix chip id detection for devices with OF bindings.
  inv_icm42600
   - Handle a case of a missing I2C NACK during initially configuration.
  ltc2688
   - Fix voltage scaling where integer part was written twice and
     decimal part not at all.
  scd4x
   - Handle error before using value.
  sx9310
   - Device property parsing against indio_dev->dev.of_node which
     hasn't been set yet.
  sx9324
   - Fix hardware gain related maths.
   - Wrong defaults for precharge internal resistance register."

* tag 'iio-fixes-for-5.18a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio: imu: inv_icm42600: Fix I2C init possible nack
  iio: dac: ltc2688: fix voltage scale read
  iio:dac:ad3552r: Fix an IS_ERR() vs NULL check
  iio: sx9324: Fix default precharge internal resistance register
  iio: dac: ad5446: Fix read_raw not returning set value
  iio: magnetometer: ak8975: Fix the error handling in ak8975_power_on()
  iio:proximity:sx9324: Fix hardware gain read/write
  iio:proximity:sx_common: Fix device property parsing on DT systems
  iio: adc: ad7280a: Fix wrong variable used when setting thresholds.
  iio:filter:admv8818: select REGMAP_SPI for ADMV8818
  iio: dac: ad5592r: Fix the missing return value.
  iio: dac: dac5571: Fix chip id detection for OF devices
  iio:imu:bmi160: disable regulator in error path
  iio: scd4x: check return of scd4x_write_and_fetch
  iio: dac: ad3552r: fix signedness bug in ad3552r_reset()

2 years agonetfilter: nft_socket: only do sk lookups when indev is available
Florian Westphal [Thu, 28 Apr 2022 07:39:21 +0000 (09:39 +0200)]
netfilter: nft_socket: only do sk lookups when indev is available

Check if the incoming interface is available and NFT_BREAK
in case neither skb->sk nor input device are set.

Because nf_sk_lookup_slow*() assume packet headers are in the
'in' direction, use in postrouting is not going to yield a meaningful
result.  Same is true for the forward chain, so restrict the use
to prerouting, input and output.

Use in output work if a socket is already attached to the skb.

Fixes: 554ced0a6e29 ("netfilter: nf_tables: add support for native socket matching")
Reported-and-tested-by: Topi Miettinen <toiwoton@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2 years agoMerge branch 'pm-cpuidle'
Rafael J. Wysocki [Thu, 28 Apr 2022 14:09:50 +0000 (16:09 +0200)]
Merge branch 'pm-cpuidle'

Merge cpuidle fixes for 5.18-rc5:

 - Make intel_idle enable C1E promotion on all CPUs when C1E is
   preferred to C1 (Artem Bityutskiy).

 - Make C6 optimization on Sapphire Rapids added recently work as
   expected if both C1E and C1 are "preferred" (Artem Bityutskiy).

* pm-cpuidle:
  intel_idle: Fix SPR C6 optimization
  intel_idle: Fix the 'preferred_cstates' module parameter

2 years agoperf symbol: Remove arch__symbols__fixup_end()
Namhyung Kim [Sat, 16 Apr 2022 00:40:48 +0000 (17:40 -0700)]
perf symbol: Remove arch__symbols__fixup_end()

Now the generic code can handle kallsyms fixup properly so no need to
keep the arch-functions anymore.

Fixes: 3cf6a32f3f2a4594 ("perf symbols: Fix symbol size calculation condition")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220416004048.1514900-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf symbol: Update symbols__fixup_end()
Namhyung Kim [Sat, 16 Apr 2022 00:40:47 +0000 (17:40 -0700)]
perf symbol: Update symbols__fixup_end()

Now arch-specific functions all do the same thing.  When it fixes the
symbol address it needs to check the boundary between the kernel image
and modules.  For the last symbol in the previous region, it cannot
know the exact size as it's discarded already.  Thus it just uses a
small page size (4096) and rounds it up like the last symbol.

Fixes: 3cf6a32f3f2a4594 ("perf symbols: Fix symbol size calculation condition")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220416004048.1514900-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf symbol: Pass is_kallsyms to symbols__fixup_end()
Namhyung Kim [Sat, 16 Apr 2022 00:40:46 +0000 (17:40 -0700)]
perf symbol: Pass is_kallsyms to symbols__fixup_end()

The symbol fixup is necessary for symbols in kallsyms since they don't
have size info.  So we use the next symbol's address to calculate the
size.  Now it's also used for user binaries because sometimes they miss
size for hand-written asm functions.

There's a arch-specific function to handle kallsyms differently but
currently it cannot distinguish kallsyms from others.  Pass this
information explicitly to handle it properly.  Note that those arch
functions will be moved to the generic function so I didn't added it to
the arch-functions.

Fixes: 3cf6a32f3f2a4594 ("perf symbols: Fix symbol size calculation condition")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220416004048.1514900-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test: Add perf_event_attr test for Arm SPE
Timothy Hayes [Thu, 21 Apr 2022 16:52:05 +0000 (17:52 +0100)]
perf test: Add perf_event_attr test for Arm SPE

Adds a perf_event_attr test for Arm SPE in which the presence of
physical addresses are checked when SPE unit is run with pa_enable=1.

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Timothy Hayes <timothy.hayes@arm.com>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: John Garry <john.garry@huawei.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: netdev@vger.kernel.org
Link: https://lore.kernel.org/r/20220421165205.117662-4-timothy.hayes@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf arm-spe: Fix SPE events with phys addresses
Timothy Hayes [Thu, 21 Apr 2022 16:52:04 +0000 (17:52 +0100)]
perf arm-spe: Fix SPE events with phys addresses

This patch corrects a bug whereby SPE collection is invoked with
pa_enable=1 but synthesized events fail to show physical addresses.

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Timothy Hayes <timothy.hayes@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: John Garry <john.garry@huawei.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: netdev@vger.kernel.org
Link: https://lore.kernel.org/r/20220421165205.117662-3-timothy.hayes@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf arm-spe: Fix addresses of synthesized SPE events
Timothy Hayes [Thu, 21 Apr 2022 16:52:03 +0000 (17:52 +0100)]
perf arm-spe: Fix addresses of synthesized SPE events

This patch corrects a bug whereby synthesized events from SPE
samples are missing virtual addresses.

Fixes: 54f7815efef7fad9 ("perf arm-spe: Fill address info for samples")
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Timothy Hayes <timothy.hayes@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: bpf@vger.kernel.org
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: John Garry <john.garry@huawei.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: netdev@vger.kernel.org
Cc: Song Liu <songliubraving@fb.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220421165205.117662-2-timothy.hayes@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix timeless decoding with perf.data directory
Adrian Hunter [Thu, 28 Apr 2022 09:31:09 +0000 (12:31 +0300)]
perf intel-pt: Fix timeless decoding with perf.data directory

Intel PT does not capture data in separate directories, so do not
use separate directory processing because it doesn't work for
timeless decoding. It also looks like it doesn't support one_mmap
handling.

Example:

  Before:

    # perf record --kcore -a -e intel_pt/tsc=0/k sleep 0.1
    [ perf record: Woken up 1 times to write data ]
    [ perf record: Captured and wrote 1.799 MB perf.data ]
    # perf script --itrace=bep | head
    #

  After:

    # perf script --itrace=bep | head
    perf 21073 [000]              psb:  psb offs: 0                       ffffffffaa68faf4 native_write_msr+0x4 ([kernel.kallsyms])
    perf 21073 [000]              cbr:  cbr: 45 freq: 4505 MHz (161%)     ffffffffaa68faf4 native_write_msr+0x4 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:                 0 [unknown] ([unknown]) => ffffffffaa68faf6 native_write_msr+0x6 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa68faf8 native_write_msr+0x8 ([kernel.kallsyms]) => ffffffffaa61aab0 pt_config_start+0x60 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa61aabd pt_config_start+0x6d ([kernel.kallsyms]) => ffffffffaa61b8ad pt_event_start+0x27d ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa61b8bb pt_event_start+0x28b ([kernel.kallsyms]) => ffffffffaa61ba60 pt_event_add+0x40 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa61ba76 pt_event_add+0x56 ([kernel.kallsyms]) => ffffffffaa880e86 event_sched_in+0xc6 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa880e9b event_sched_in+0xdb ([kernel.kallsyms]) => ffffffffaa880ea5 event_sched_in+0xe5 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa880eba event_sched_in+0xfa ([kernel.kallsyms]) => ffffffffaa880f96 event_sched_in+0x1d6 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa880fc8 event_sched_in+0x208 ([kernel.kallsyms]) => ffffffffaa880ec0 event_sched_in+0x100 ([kernel.kallsyms])

Fixes: bb6be405c4a2a5 ("perf session: Load data directory files for analysis")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20220428093109.274641-1-adrian.hunter@intel.com
Cc: Ian Rogers <irogers@google.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: linux-kernel@vger.kernel.org
2 years agogfs2: No short reads or writes upon glock contention
Andreas Gruenbacher [Thu, 28 Apr 2022 12:51:33 +0000 (14:51 +0200)]
gfs2: No short reads or writes upon glock contention

Commit 00bfe02f4796 ("gfs2: Fix mmap + page fault deadlocks for buffered
I/O") changed gfs2_file_read_iter() and gfs2_file_buffered_write() to
allow dropping the inode glock while faulting in user buffers.  When the
lock was dropped, a short result was returned to indicate that the
operation was interrupted.

As pointed out by Linus (see the link below), this behavior is broken
and the operations should always re-acquire the inode glock and resume
the operation instead.

Link: https://lore.kernel.org/lkml/CAHk-=whaz-g_nOOoo8RRiWNjnv2R+h6_xk2F1J4TuSRxk1MtLw@mail.gmail.com/
Fixes: 00bfe02f4796 ("gfs2: Fix mmap + page fault deadlocks for buffered I/O")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
2 years agoelf: Fix the arm64 MTE ELF segment name and value
Catalin Marinas [Mon, 25 Apr 2022 15:18:33 +0000 (16:18 +0100)]
elf: Fix the arm64 MTE ELF segment name and value

Unfortunately, the name/value choice for the MTE ELF segment type
(PT_ARM_MEMTAG_MTE) was pretty poor: LOPROC+1 is already in use by
PT_AARCH64_UNWIND, as defined in the AArch64 ELF ABI
(https://github.com/ARM-software/abi-aa/blob/main/aaelf64/aaelf64.rst).

Update the ELF segment type value to LOPROC+2 and also change the define
to PT_AARCH64_MEMTAG_MTE to match the AArch64 ELF ABI namespace. The
AArch64 ELF ABI document is updating accordingly (segment type not
previously mentioned in the document).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Fixes: 761b9b366cec ("elf: Introduce the ARM MTE ELF segment type")
Cc: Will Deacon <will@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Luis Machado <luis.machado@arm.com>
Cc: Richard Earnshaw <Richard.Earnshaw@arm.com>
Link: https://lore.kernel.org/r/20220425151833.2603830-1-catalin.marinas@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2 years agoMerge tag 'for-net-2022-04-27' of git://git.kernel.org/pub/scm/linux/kernel/git/bluet...
Paolo Abeni [Thu, 28 Apr 2022 08:18:51 +0000 (10:18 +0200)]
Merge tag 'for-net-2022-04-27' of git://git./linux/kernel/git/bluetooth/bluetooth

Luiz Augusto von Dentz says:

====================
bluetooth pull request for net:

 - Fix regression causing some HCI events to be discarded when they
   shouldn't.

* tag 'for-net-2022-04-27' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth:
  Bluetooth: hci_sync: Cleanup hci_conn if it cannot be aborted
  Bluetooth: hci_event: Fix creating hci_conn object on error status
  Bluetooth: hci_event: Fix checking for invalid handle on error status
====================

Link: https://lore.kernel.org/r/20220427234031.1257281-1-luiz.dentz@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2 years agoscsi: target: pscsi: Set SCF_TREAT_READ_AS_NORMAL flag only if there is valid data
David Jeffery [Wed, 27 Apr 2022 18:32:50 +0000 (14:32 -0400)]
scsi: target: pscsi: Set SCF_TREAT_READ_AS_NORMAL flag only if there is valid data

With tape devices, the SCF_TREAT_READ_AS_NORMAL flag is used by the target
subsystem to mark commands which have both data to return as well as sense
data. But with pscsi, SCF_TREAT_READ_AS_NORMAL can be set even if there is
no data to return. The SCF_TREAT_READ_AS_NORMAL flag causes the target core
to call iscsit data-in callbacks even if there is no data, which iscsit
does not support. This results in iscsit going into an error state
requiring recovery and being unable to complete the command to the
initiator.

This issue can be resolved by fixing pscsi to only set
SCF_TREAT_READ_AS_NORMAL if there is valid data to return alongside the
sense data.

Link: https://lore.kernel.org/r/20220427183250.291881-1-djeffery@redhat.com
Fixes: bd81372065fa ("scsi: target: transport should handle st FM/EOM/ILI reads")
Reported-by: Scott Hamilton <scott.hamilton@atos.net>
Tested-by: Laurence Oberman <loberman@redhat.com>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: David Jeffery <djeffery@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2 years agonet: fec: add missing of_node_put() in fec_enet_init_stop_mode()
Yang Yingliang [Tue, 26 Apr 2022 12:52:31 +0000 (20:52 +0800)]
net: fec: add missing of_node_put() in fec_enet_init_stop_mode()

Put device node in error path in fec_enet_init_stop_mode().

Fixes: 8a448bf832af ("net: ethernet: fec: move GPR register offset and bit into DT")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220426125231.375688-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agobnx2x: fix napi API usage sequence
Manish Chopra [Tue, 26 Apr 2022 15:39:13 +0000 (08:39 -0700)]
bnx2x: fix napi API usage sequence

While handling PCI errors (AER flow) driver tries to
disable NAPI [napi_disable()] after NAPI is deleted
[__netif_napi_del()] which causes unexpected system
hang/crash.

System message log shows the following:
=======================================
[ 3222.537510] EEH: Detected PCI bus error on PHB#384-PE#800000 [ 3222.537511] EEH: This PCI device has failed 2 times in the last hour and will be permanently disabled after 5 failures.
[ 3222.537512] EEH: Notify device drivers to shutdown [ 3222.537513] EEH: Beginning: 'error_detected(IO frozen)'
[ 3222.537514] EEH: PE#800000 (PCI 0384:80:00.0): Invoking
bnx2x->error_detected(IO frozen)
[ 3222.537516] bnx2x: [bnx2x_io_error_detected:14236(eth14)]IO error detected [ 3222.537650] EEH: PE#800000 (PCI 0384:80:00.0): bnx2x driver reports:
'need reset'
[ 3222.537651] EEH: PE#800000 (PCI 0384:80:00.1): Invoking
bnx2x->error_detected(IO frozen)
[ 3222.537651] bnx2x: [bnx2x_io_error_detected:14236(eth13)]IO error detected [ 3222.537729] EEH: PE#800000 (PCI 0384:80:00.1): bnx2x driver reports:
'need reset'
[ 3222.537729] EEH: Finished:'error_detected(IO frozen)' with aggregate recovery state:'need reset'
[ 3222.537890] EEH: Collect temporary log [ 3222.583481] EEH: of node=0384:80:00.0 [ 3222.583519] EEH: PCI device/vendor: 168e14e4 [ 3222.583557] EEH: PCI cmd/status register: 00100140 [ 3222.583557] EEH: PCI-E capabilities and status follow:
[ 3222.583744] EEH: PCI-E 00: 00020010 012c8da2 00095d5e 00455c82 [ 3222.583892] EEH: PCI-E 10: 10820000 00000000 00000000 00000000 [ 3222.583893] EEH: PCI-E 20: 00000000 [ 3222.583893] EEH: PCI-E AER capability register set follows:
[ 3222.584079] EEH: PCI-E AER 00: 13c10001 00000000 00000000 00062030 [ 3222.584230] EEH: PCI-E AER 10: 00002000 000031c0 000001e0 00000000 [ 3222.584378] EEH: PCI-E AER 20: 00000000 00000000 00000000 00000000 [ 3222.584416] EEH: PCI-E AER 30: 00000000 00000000 [ 3222.584416] EEH: of node=0384:80:00.1 [ 3222.584454] EEH: PCI device/vendor: 168e14e4 [ 3222.584491] EEH: PCI cmd/status register: 00100140 [ 3222.584492] EEH: PCI-E capabilities and status follow:
[ 3222.584677] EEH: PCI-E 00: 00020010 012c8da2 00095d5e 00455c82 [ 3222.584825] EEH: PCI-E 10: 10820000 00000000 00000000 00000000 [ 3222.584826] EEH: PCI-E 20: 00000000 [ 3222.584826] EEH: PCI-E AER capability register set follows:
[ 3222.585011] EEH: PCI-E AER 00: 13c10001 00000000 00000000 00062030 [ 3222.585160] EEH: PCI-E AER 10: 00002000 000031c0 000001e0 00000000 [ 3222.585309] EEH: PCI-E AER 20: 00000000 00000000 00000000 00000000 [ 3222.585347] EEH: PCI-E AER 30: 00000000 00000000 [ 3222.586872] RTAS: event: 5, Type: Platform Error (224), Severity: 2 [ 3222.586873] EEH: Reset without hotplug activity [ 3224.762767] EEH: Beginning: 'slot_reset'
[ 3224.762770] EEH: PE#800000 (PCI 0384:80:00.0): Invoking
bnx2x->slot_reset()
[ 3224.762771] bnx2x: [bnx2x_io_slot_reset:14271(eth14)]IO slot reset initializing...
[ 3224.762887] bnx2x 0384:80:00.0: enabling device (0140 -> 0142) [ 3224.768157] bnx2x: [bnx2x_io_slot_reset:14287(eth14)]IO slot reset
--> driver unload

Uninterruptible tasks
=====================
crash> ps | grep UN
     213      2  11  c000000004c89e00  UN   0.0       0      0  [eehd]
     215      2   0  c000000004c80000  UN   0.0       0      0
[kworker/0:2]
    2196      1  28  c000000004504f00  UN   0.1   15936  11136  wickedd
    4287      1   9  c00000020d076800  UN   0.0    4032   3008  agetty
    4289      1  20  c00000020d056680  UN   0.0    7232   3840  agetty
   32423      2  26  c00000020038c580  UN   0.0       0      0
[kworker/26:3]
   32871   4241  27  c0000002609ddd00  UN   0.1   18624  11648  sshd
   32920  10130  16  c00000027284a100  UN   0.1   48512  12608  sendmail
   33092  32987   0  c000000205218b00  UN   0.1   48512  12608  sendmail
   33154   4567  16  c000000260e51780  UN   0.1   48832  12864  pickup
   33209   4241  36  c000000270cb6500  UN   0.1   18624  11712  sshd
   33473  33283   0  c000000205211480  UN   0.1   48512  12672  sendmail
   33531   4241  37  c00000023c902780  UN   0.1   18624  11648  sshd

EEH handler hung while bnx2x sleeping and holding RTNL lock
===========================================================
crash> bt 213
PID: 213    TASK: c000000004c89e00  CPU: 11  COMMAND: "eehd"
  #0 [c000000004d477e0] __schedule at c000000000c70808
  #1 [c000000004d478b0] schedule at c000000000c70ee0
  #2 [c000000004d478e0] schedule_timeout at c000000000c76dec
  #3 [c000000004d479c0] msleep at c0000000002120cc
  #4 [c000000004d479f0] napi_disable at c000000000a06448
                                        ^^^^^^^^^^^^^^^^
  #5 [c000000004d47a30] bnx2x_netif_stop at c0080000018dba94 [bnx2x]
  #6 [c000000004d47a60] bnx2x_io_slot_reset at c0080000018a551c [bnx2x]
  #7 [c000000004d47b20] eeh_report_reset at c00000000004c9bc
  #8 [c000000004d47b90] eeh_pe_report at c00000000004d1a8
  #9 [c000000004d47c40] eeh_handle_normal_event at c00000000004da64

And the sleeping source code
============================
crash> dis -ls c000000000a06448
FILE: ../net/core/dev.c
LINE: 6702

   6697  {
   6698          might_sleep();
   6699          set_bit(NAPI_STATE_DISABLE, &n->state);
   6700
   6701          while (test_and_set_bit(NAPI_STATE_SCHED, &n->state))
* 6702                  msleep(1);
   6703          while (test_and_set_bit(NAPI_STATE_NPSVC, &n->state))
   6704                  msleep(1);
   6705
   6706          hrtimer_cancel(&n->timer);
   6707
   6708          clear_bit(NAPI_STATE_DISABLE, &n->state);
   6709  }

EEH calls into bnx2x twice based on the system log above, first through
bnx2x_io_error_detected() and then bnx2x_io_slot_reset(), and executes
the following call chains:

bnx2x_io_error_detected()
  +-> bnx2x_eeh_nic_unload()
       +-> bnx2x_del_all_napi()
            +-> __netif_napi_del()

bnx2x_io_slot_reset()
  +-> bnx2x_netif_stop()
       +-> bnx2x_napi_disable()
            +->napi_disable()

Fix this by correcting the sequence of NAPI APIs usage,
that is delete the NAPI after disabling it.

Fixes: 7fa6f34081f1 ("bnx2x: AER revised")
Reported-by: David Christensen <drc@linux.vnet.ibm.com>
Tested-by: David Christensen <drc@linux.vnet.ibm.com>
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Link: https://lore.kernel.org/r/20220426153913.6966-1-manishc@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agotls: Skip tls_append_frag on zero copy size
Maxim Mikityanskiy [Tue, 26 Apr 2022 15:49:49 +0000 (18:49 +0300)]
tls: Skip tls_append_frag on zero copy size

Calling tls_append_frag when max_open_record_len == record->len might
add an empty fragment to the TLS record if the call happens to be on the
page boundary. Normally tls_append_frag coalesces the zero-sized
fragment to the previous one, but not if it's on page boundary.

If a resync happens then, the mlx5 driver posts dump WQEs in
tx_post_resync_dump, and the empty fragment may become a data segment
with byte_count == 0, which will confuse the NIC and lead to a CQE
error.

This commit fixes the described issue by skipping tls_append_frag on
zero size to avoid adding empty fragments. The fix is not in the driver,
because an empty fragment is hardly the desired behavior.

Fixes: e8f69799810c ("net/tls: Add generic NIC offload infrastructure")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20220426154949.159055-1-maximmi@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoMerge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Jakub Kicinski [Wed, 27 Apr 2022 22:18:39 +0000 (15:18 -0700)]
Merge https://git./linux/kernel/git/bpf/bpf

Daniel Borkmann says:

====================
pull-request: bpf 2022-04-27

We've added 5 non-merge commits during the last 20 day(s) which contain
a total of 6 files changed, 34 insertions(+), 12 deletions(-).

The main changes are:

1) Fix xsk sockets when rx and tx are separately bound to the same umem, also
   fix xsk copy mode combined with busy poll, from Maciej Fijalkowski.

2) Fix BPF tunnel/collect_md helpers with bpf_xmit lwt hook usage which triggered
   a crash due to invalid metadata_dst access, from Eyal Birger.

3) Fix release of page pool in XDP live packet mode, from Toke Høiland-Jørgensen.

4) Fix potential NULL pointer dereference in kretprobes, from Adam Zabrocki.

   (Masami & Steven preferred this small fix to be routed via bpf tree given it's
    follow-up fix to Masami's rethook work that went via bpf earlier, too.)

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  xsk: Fix possible crash when multiple sockets are created
  kprobes: Fix KRETPROBES when CONFIG_KRETPROBE_ON_RETHOOK is set
  bpf, lwt: Fix crash when using bpf_skb_set_tunnel_key() from bpf_xmit lwt hook
  bpf: Fix release of page_pool in BPF_PROG_RUN in test runner
  xsk: Fix l2fwd for copy mode + busy poll combo
====================

Link: https://lore.kernel.org/r/20220427212748.9576-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoKVM: arm64: Inject exception on out-of-IPA-range translation fault
Marc Zyngier [Thu, 21 Apr 2022 14:38:10 +0000 (15:38 +0100)]
KVM: arm64: Inject exception on out-of-IPA-range translation fault

When taking a translation fault for an IPA that is outside of
the range defined by the hypervisor (between the HW PARange and
the IPA range), we stupidly treat it as an IO and forward the access
to userspace. Of course, userspace can't do much with it, and things
end badly.

Arguably, the guest is braindead, but we should at least catch the
case and inject an exception.

Check the faulting IPA against:
- the sanitised PARange: inject an address size fault
- the IPA size: inject an abort

Reported-by: Christoffer Dall <christoffer.dall@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
2 years agodrm/amdgpu: keep mmhub clock gating being enabled during s2idle suspend
Prike Liang [Tue, 19 Apr 2022 09:22:34 +0000 (17:22 +0800)]
drm/amdgpu: keep mmhub clock gating being enabled during s2idle suspend

Without MMHUB clock gating being enabled then MMHUB will not disconnect
from DF and will result in DF C-state entry can't be accessed during S2idle
suspend, and eventually s0ix entry will be blocked.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2 years agodrm/amd/pm: fix the deadlock issue observed on SI
Evan Quan [Fri, 8 Apr 2022 11:51:34 +0000 (19:51 +0800)]
drm/amd/pm: fix the deadlock issue observed on SI

The adev->pm.mutx is already held at the beginning of
amdgpu_dpm_compute_clocks/amdgpu_dpm_enable_uvd/amdgpu_dpm_enable_vce.
But on their calling path, amdgpu_display_bandwidth_update will be
called and thus its sub functions amdgpu_dpm_get_sclk/mclk. They
will then try to acquire the same adev->pm.mutex and deadlock will
occur.

By placing amdgpu_display_bandwidth_update outside of adev->pm.mutex
protection(considering logically they do not need such protection) and
restructuring the call flow accordingly, we can eliminate the deadlock
issue. This comes with no real logics change.

Fixes: 3712e7a49459 ("drm/amd/pm: unified lock protections in amdgpu_dpm.c")
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reported-by: Arthur Marsh <arthur.marsh@internode.on.net>
Link: https://lore.kernel.org/all/9e689fea-6c69-f4b0-8dee-32c4cf7d8f9c@molgen.mpg.de/
BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1957
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2 years agodrm/amd/display: Fix memory leak in dcn21_clock_source_create
Miaoqian Lin [Thu, 21 Apr 2022 09:03:09 +0000 (17:03 +0800)]
drm/amd/display: Fix memory leak in dcn21_clock_source_create

When dcn20_clk_src_construct() fails, we need to release clk_src.

Fixes: 6f4e6361c3ff ("drm/amd/display: Add Renoir resource (v2)")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2 years agodrm/amdgpu: don't runtime suspend if there are displays attached (v3)
Alex Deucher [Tue, 28 Dec 2021 22:26:24 +0000 (17:26 -0500)]
drm/amdgpu: don't runtime suspend if there are displays attached (v3)

We normally runtime suspend when there are displays attached if they
are in the DPMS off state, however, if something wakes the GPU
we send a hotplug event on resume (in case any displays were connected
while the GPU was in suspend) which can cause userspace to light
up the displays again soon after they were turned off.

Prior to
commit 087451f372bf76 ("drm/amdgpu: use generic fb helpers instead of setting up AMD own's."),
the driver took a runtime pm reference when the fbdev emulation was
enabled because we didn't implement proper shadowing support for
vram access when the device was off so the device never runtime
suspended when there was a console bound.  Once that commit landed,
we now utilize the core fb helper implementation which properly
handles the emulation, so runtime pm now suspends in cases where it did
not before.  Ultimately, we need to sort out why runtime suspend in not
working in this case for some users, but this should restore similar
behavior to before.

v2: move check into runtime_suspend
v3: wake ups -> wakeups in comment, retain pm_runtime behavior in
    runtime_idle callback

Fixes: 087451f372bf76 ("drm/amdgpu: use generic fb helpers instead of setting up AMD own's.")
Link: https://lore.kernel.org/r/20220403132322.51c90903@darkstar.example.org/
Tested-by: Michele Ballabio <ballabio.m@gmail.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2 years agodrm/amdkfd: CRIU add support for GWS queues
David Yat Sin [Wed, 13 Apr 2022 15:37:53 +0000 (11:37 -0400)]
drm/amdkfd: CRIU add support for GWS queues

Add support to checkpoint/restore GWS (Global Wave Sync) queues.

Signed-off-by: David Yat Sin <david.yatsin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2 years agodrm/amdkfd: Fix GWS queue count
David Yat Sin [Mon, 18 Apr 2022 15:55:58 +0000 (11:55 -0400)]
drm/amdkfd: Fix GWS queue count

dqm->gws_queue_count and pdd->qpd.mapped_gws_queue need to be updated
each time the queue gets evicted.

Fixes: b8020b0304c8 ("drm/amdkfd: Enable over-subscription with >1 GWS queue")
Signed-off-by: David Yat Sin <david.yatsin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2 years agoKVM/arm64: Don't emulate a PMU for 32-bit guests if feature not set
Alexandru Elisei [Mon, 25 Apr 2022 14:55:30 +0000 (15:55 +0100)]
KVM/arm64: Don't emulate a PMU for 32-bit guests if feature not set

kvm->arch.arm_pmu is set when userspace attempts to set the first PMU
attribute. As certain attributes are mandatory, arm_pmu ends up always
being set to a valid arm_pmu, otherwise KVM will refuse to run the VCPU.
However, this only happens if the VCPU has the PMU feature. If the VCPU
doesn't have the feature bit set, kvm->arch.arm_pmu will be left
uninitialized and equal to NULL.

KVM doesn't do ID register emulation for 32-bit guests and accesses to the
PMU registers aren't gated by the pmu_visibility() function. This is done
to prevent injecting unexpected undefined exceptions in guests which have
detected the presence of a hardware PMU. But even though the VCPU feature
is missing, KVM still attempts to emulate certain aspects of the PMU when
PMU registers are accessed. This leads to a NULL pointer dereference like
this one, which happens on an odroid-c4 board when running the
kvm-unit-tests pmu-cycle-counter test with kvmtool and without the PMU
feature being set:

[  454.402699] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000150
[  454.405865] Mem abort info:
[  454.408596]   ESR = 0x96000004
[  454.411638]   EC = 0x25: DABT (current EL), IL = 32 bits
[  454.416901]   SET = 0, FnV = 0
[  454.419909]   EA = 0, S1PTW = 0
[  454.423010]   FSC = 0x04: level 0 translation fault
[  454.427841] Data abort info:
[  454.430687]   ISV = 0, ISS = 0x00000004
[  454.434484]   CM = 0, WnR = 0
[  454.437404] user pgtable: 4k pages, 48-bit VAs, pgdp=000000000c924000
[  454.443800] [0000000000000150] pgd=0000000000000000, p4d=0000000000000000
[  454.450528] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[  454.456036] Modules linked in:
[  454.459053] CPU: 1 PID: 267 Comm: kvm-vcpu-0 Not tainted 5.18.0-rc4 #113
[  454.465697] Hardware name: Hardkernel ODROID-C4 (DT)
[  454.470612] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  454.477512] pc : kvm_pmu_event_mask.isra.0+0x14/0x74
[  454.482427] lr : kvm_pmu_set_counter_event_type+0x2c/0x80
[  454.487775] sp : ffff80000a9839c0
[  454.491050] x29: ffff80000a9839c0 x28: ffff000000a83a00 x27: 0000000000000000
[  454.498127] x26: 0000000000000000 x25: 0000000000000000 x24: ffff00000a510000
[  454.505198] x23: ffff000000a83a00 x22: ffff000003b01000 x21: 0000000000000000
[  454.512271] x20: 000000000000001f x19: 00000000000003ff x18: 0000000000000000
[  454.519343] x17: 000000008003fe98 x16: 0000000000000000 x15: 0000000000000000
[  454.526416] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
[  454.533489] x11: 000000008003fdbc x10: 0000000000009d20 x9 : 000000000000001b
[  454.540561] x8 : 0000000000000000 x7 : 0000000000000d00 x6 : 0000000000009d00
[  454.547633] x5 : 0000000000000037 x4 : 0000000000009d00 x3 : 0d09000000000000
[  454.554705] x2 : 000000000000001f x1 : 0000000000000000 x0 : 0000000000000000
[  454.561779] Call trace:
[  454.564191]  kvm_pmu_event_mask.isra.0+0x14/0x74
[  454.568764]  kvm_pmu_set_counter_event_type+0x2c/0x80
[  454.573766]  access_pmu_evtyper+0x128/0x170
[  454.577905]  perform_access+0x34/0x80
[  454.581527]  kvm_handle_cp_32+0x13c/0x160
[  454.585495]  kvm_handle_cp15_32+0x1c/0x30
[  454.589462]  handle_exit+0x70/0x180
[  454.592912]  kvm_arch_vcpu_ioctl_run+0x1c4/0x5e0
[  454.597485]  kvm_vcpu_ioctl+0x23c/0x940
[  454.601280]  __arm64_sys_ioctl+0xa8/0xf0
[  454.605160]  invoke_syscall+0x48/0x114
[  454.608869]  el0_svc_common.constprop.0+0xd4/0xfc
[  454.613527]  do_el0_svc+0x28/0x90
[  454.616803]  el0_svc+0x34/0xb0
[  454.619822]  el0t_64_sync_handler+0xa4/0x130
[  454.624049]  el0t_64_sync+0x18c/0x190
[  454.627675] Code: a9be7bfd 910003fd f9000bf3 52807ff3 (b9415001)
[  454.633714] ---[ end trace 0000000000000000 ]---

In this particular case, Linux hasn't detected the presence of a hardware
PMU because the PMU node is missing from the DTB, so userspace would have
been unable to set the VCPU PMU feature even if it attempted it. What
happens is that the 32-bit guest reads ID_DFR0, which advertises the
presence of the PMU, and when it tries to program a counter, it triggers
the NULL pointer dereference because kvm->arch.arm_pmu is NULL.

kvm-arch.arm_pmu was introduced by commit 46b187821472 ("KVM: arm64:
Keep a per-VM pointer to the default PMU"). Until that commit, this
error would be triggered instead:

[   73.388140] ------------[ cut here ]------------
[   73.388189] Unknown PMU version 0
[   73.390420] WARNING: CPU: 1 PID: 264 at arch/arm64/kvm/pmu-emul.c:36 kvm_pmu_event_mask.isra.0+0x6c/0x74
[   73.399821] Modules linked in:
[   73.402835] CPU: 1 PID: 264 Comm: kvm-vcpu-0 Not tainted 5.17.0 #114
[   73.409132] Hardware name: Hardkernel ODROID-C4 (DT)
[   73.414048] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   73.420948] pc : kvm_pmu_event_mask.isra.0+0x6c/0x74
[   73.425863] lr : kvm_pmu_event_mask.isra.0+0x6c/0x74
[   73.430779] sp : ffff80000a8db9b0
[   73.434055] x29: ffff80000a8db9b0 x28: ffff000000dbaac0 x27: 0000000000000000
[   73.441131] x26: ffff000000dbaac0 x25: 00000000c600000d x24: 0000000000180720
[   73.448203] x23: ffff800009ffbe10 x22: ffff00000b612000 x21: 0000000000000000
[   73.455276] x20: 000000000000001f x19: 0000000000000000 x18: ffffffffffffffff
[   73.462348] x17: 000000008003fe98 x16: 0000000000000000 x15: 0720072007200720
[   73.469420] x14: 0720072007200720 x13: ffff800009d32488 x12: 00000000000004e6
[   73.476493] x11: 00000000000001a2 x10: ffff800009d32488 x9 : ffff800009d32488
[   73.483565] x8 : 00000000ffffefff x7 : ffff800009d8a488 x6 : ffff800009d8a488
[   73.490638] x5 : ffff0000f461a9d8 x4 : 0000000000000000 x3 : 0000000000000001
[   73.497710] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000000dbaac0
[   73.504784] Call trace:
[   73.507195]  kvm_pmu_event_mask.isra.0+0x6c/0x74
[   73.511768]  kvm_pmu_set_counter_event_type+0x2c/0x80
[   73.516770]  access_pmu_evtyper+0x128/0x16c
[   73.520910]  perform_access+0x34/0x80
[   73.524532]  kvm_handle_cp_32+0x13c/0x160
[   73.528500]  kvm_handle_cp15_32+0x1c/0x30
[   73.532467]  handle_exit+0x70/0x180
[   73.535917]  kvm_arch_vcpu_ioctl_run+0x20c/0x6e0
[   73.540489]  kvm_vcpu_ioctl+0x2b8/0x9e0
[   73.544283]  __arm64_sys_ioctl+0xa8/0xf0
[   73.548165]  invoke_syscall+0x48/0x114
[   73.551874]  el0_svc_common.constprop.0+0xd4/0xfc
[   73.556531]  do_el0_svc+0x28/0x90
[   73.559808]  el0_svc+0x28/0x80
[   73.562826]  el0t_64_sync_handler+0xa4/0x130
[   73.567054]  el0t_64_sync+0x1a0/0x1a4
[   73.570676] ---[ end trace 0000000000000000 ]---
[   73.575382] kvm: pmu event creation failed -2

The root cause remains the same: kvm->arch.pmuver was never set to
something sensible because the VCPU feature itself was never set.

The odroid-c4 is somewhat of a special case, because Linux doesn't probe
the PMU. But the above errors can easily be reproduced on any hardware,
with or without a PMU driver, as long as userspace doesn't set the PMU
feature.

Work around the fact that KVM advertises a PMU even when the VCPU feature
is not set by gating all PMU emulation on the feature. The guest can still
access the registers without KVM injecting an undefined exception.

Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220425145530.723858-1-alexandru.elisei@arm.com
2 years agoKVM: arm64: Handle host stage-2 faults from 32-bit EL0
Will Deacon [Wed, 27 Apr 2022 17:13:32 +0000 (18:13 +0100)]
KVM: arm64: Handle host stage-2 faults from 32-bit EL0

When pKVM is enabled, host memory accesses are translated by an identity
mapping at stage-2, which is populated lazily in response to synchronous
exceptions from 64-bit EL1 and EL0.

Extend this handling to cover exceptions originating from 32-bit EL0 as
well. Although these are very unlikely to occur in practice, as the
kernel typically ensures that user pages are initialised before mapping
them in, drivers could still map previously untouched device pages into
userspace and expect things to work rather than panic the system.

Cc: Quentin Perret <qperret@google.com>
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220427171332.13635-1-will@kernel.org
2 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Wed, 27 Apr 2022 20:44:37 +0000 (13:44 -0700)]
Merge branch 'akpm' (patches from Andrew)

Merge fixes from Andrew Morton:
 "Two patches.

  Subsystems affected by this patch series: mm/kasan and mm/debug"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  docs: vm/page_owner: use literal blocks for param description
  kasan: prevent cpu_quarantine corruption when CPU offline and cache shrink occur at same time

2 years agodocs: vm/page_owner: use literal blocks for param description
Akira Yokosawa [Wed, 27 Apr 2022 19:41:59 +0000 (12:41 -0700)]
docs: vm/page_owner: use literal blocks for param description

Sphinx generates hard-to-read lists of parameters at the bottom of the
page.  Fix them by putting literal-block markers of "::" in front of
them.

Link: https://lkml.kernel.org/r/cfd3bcc0-b51d-0c68-c065-ca1c4c202447@gmail.com
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Fixes: 57f2b54a9379 ("Documentation/vm/page_owner.rst: update the documentation")
Cc: Shenghong Han <hanshenghong2019@email.szu.edu.cn>
Cc: Haowen Bai <baihaowen@meizu.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Alex Shi <seakeel@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agokasan: prevent cpu_quarantine corruption when CPU offline and cache shrink occur...
Zqiang [Wed, 27 Apr 2022 19:41:56 +0000 (12:41 -0700)]
kasan: prevent cpu_quarantine corruption when CPU offline and cache shrink occur at same time

kasan_quarantine_remove_cache() is called in kmem_cache_shrink()/
destroy().  The kasan_quarantine_remove_cache() call is protected by
cpuslock in kmem_cache_destroy() to ensure serialization with
kasan_cpu_offline().

However the kasan_quarantine_remove_cache() call is not protected by
cpuslock in kmem_cache_shrink().  When a CPU is going offline and cache
shrink occurs at same time, the cpu_quarantine may be corrupted by
interrupt (per_cpu_remove_cache operation).

So add a cpu_quarantine offline flags check in per_cpu_remove_cache().

[akpm@linux-foundation.org: add comment, per Zqiang]

Link: https://lkml.kernel.org/r/20220414025925.2423818-1-qiang1.zhang@intel.com
Signed-off-by: Zqiang <qiang1.zhang@intel.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoRevert "block: inherit request start time from bio for BLK_CGROUP"
Tejun Heo [Wed, 27 Apr 2022 19:49:12 +0000 (09:49 -1000)]
Revert "block: inherit request start time from bio for BLK_CGROUP"

This reverts commit 0006707723233cb2a9a23ca19fc3d0864835704c. It has a
couple problems:

* bio_issue_time() is stored in bio->bi_issue truncated to 51 bits. This
  overflows in slightly over 26 days. Setting rq->io_start_time_ns with it
  means that io duration calculation would yield >26days after 26 days of
  uptime. This, for example, confuses kyber making it cause high IO
  latencies.

* rq->io_start_time_ns should record the time that the IO is issued to the
  device so that on-device latency can be measured. However,
  bio_issue_time() is set before the bio goes through the rq-qos controllers
  (wbt, iolatency, iocost), so when the bio gets throttled in any of the
  mechanisms, the measured latencies make no sense - on-device latencies end
  up higher than request-alloc-to-completion latencies.

We'll need a smarter way to avoid calling ktime_get_ns() repeatedly
back-to-back. For now, let's revert the commit.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org # v5.16+
Link: https://lore.kernel.org/r/YmmeOLfo5lzc+8yI@slm.duckdns.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agointel_idle: Fix SPR C6 optimization
Artem Bityutskiy [Wed, 27 Apr 2022 06:08:53 +0000 (09:08 +0300)]
intel_idle: Fix SPR C6 optimization

The Sapphire Rapids (SPR) C6 optimization was added to the end of the
'spr_idle_state_table_update()' function. However, the function has a
'return' which may happen before the optimization has a chance to run.
And this may prevent the optimization from happening.

This is an unlikely scenario, but possible if user boots with, say,
the 'intel_idle.preferred_cstates=6' kernel boot option.

This patch fixes the issue by eliminating the problematic 'return'
statement.

Fixes: 3a9cf77b60dc ("intel_idle: add core C6 optimization for SPR")
Suggested-by: Jan Beulich <jbeulich@suse.com>
Reported-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
[ rjw: Minor changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2 years agointel_idle: Fix the 'preferred_cstates' module parameter
Artem Bityutskiy [Wed, 27 Apr 2022 06:08:52 +0000 (09:08 +0300)]
intel_idle: Fix the 'preferred_cstates' module parameter

Problem description.

When user boots kernel up with the 'intel_idle.preferred_cstates=4' option,
we enable C1E and disable C1 states on Sapphire Rapids Xeon (SPR). In order
for C1E to work on SPR, we have to enable the C1E promotion bit on all
CPUs.  However, we enable it only on one CPU.

Fix description.

The 'intel_idle' driver already has the infrastructure for disabling C1E
promotion on every CPU. This patch uses the same infrastructure for
enabling C1E promotion on every CPU. It changes the boolean
'disable_promotion_to_c1e' variable to a tri-state 'c1e_promotion'
variable.

Tested on a 2-socket SPR system. I verified the following combinations:

 * C1E promotion enabled and disabled in BIOS.
 * Booted with and without the 'intel_idle.preferred_cstates=4' kernel
   argument.

In all 4 cases C1E promotion was correctly set on all CPUs.

Also tested on an old Broadwell system, just to make sure it does not cause
a regression. C1E promotion was correctly disabled on that system, both C1
and C1E were exposed (as expected).

Fixes: da0e58c038e6 ("intel_idle: add 'preferred_cstates' module argument")
Reported-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
[ rjw: Minor changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2 years agoMerge tag 'cpufreq-arm-fixes-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel...
Rafael J. Wysocki [Wed, 27 Apr 2022 18:20:03 +0000 (20:20 +0200)]
Merge tag 'cpufreq-arm-fixes-5.18-rc5' of git://git./linux/kernel/git/vireshk/pm

Pull ARM cpufreq fixes for 5.18-rc5 from Viresh Kumar:

"- Fix issues with the Qualcomm's cpufreq driver (Dmitry Baryshkov and
   Vladimir Zapolskiy).
 - Fix memory leak with the Sun501 driver (Xiaobing Luo)."

* tag 'cpufreq-arm-fixes-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  cpufreq: qcom-cpufreq-hw: Clear dcvs interrupts
  cpufreq: fix memory leak in sun50i_cpufreq_nvmem_probe
  cpufreq: qcom-cpufreq-hw: Fix throttle frequency value on EPSS platforms
  cpufreq: qcom-hw: provide online/offline operations
  cpufreq: qcom-hw: fix the opp entries refcounting
  cpufreq: qcom-hw: fix the race between LMH worker and cpuhp
  cpufreq: qcom-hw: drop affinity hint before freeing the IRQ

2 years agohex2bin: fix access beyond string end
Mikulas Patocka [Wed, 27 Apr 2022 15:26:40 +0000 (11:26 -0400)]
hex2bin: fix access beyond string end

If we pass too short string to "hex2bin" (and the string size without
the terminating NUL character is even), "hex2bin" reads one byte after
the terminating NUL character.  This patch fixes it.

Note that hex_to_bin returns -1 on error and hex2bin return -EINVAL on
error - so we can't just return the variable "hi" or "lo" on error.
This inconsistency may be fixed in the next merge window, but for the
purpose of fixing this bug, we just preserve the existing behavior and
return -1 and -EINVAL.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Fixes: b78049831ffe ("lib: add error checking to hex2bin")
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agohex2bin: make the function hex_to_bin constant-time
Mikulas Patocka [Mon, 25 Apr 2022 12:07:48 +0000 (08:07 -0400)]
hex2bin: make the function hex_to_bin constant-time

The function hex2bin is used to load cryptographic keys into device
mapper targets dm-crypt and dm-integrity.  It should take constant time
independent on the processed data, so that concurrently running
unprivileged code can't infer any information about the keys via
microarchitectural convert channels.

This patch changes the function hex_to_bin so that it contains no
branches and no memory accesses.

Note that this shouldn't cause performance degradation because the size
of the new function is the same as the size of the old function (on
x86-64) - and the new function causes no branch misprediction penalties.

I compile-tested this function with gcc on aarch64 alpha arm hppa hppa64
i386 ia64 m68k mips32 mips64 powerpc powerpc64 riscv sh4 s390x sparc32
sparc64 x86_64 and with clang on aarch64 arm hexagon i386 mips32 mips64
powerpc powerpc64 s390x sparc32 sparc64 x86_64 to verify that there are
no branches in the generated code.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agobus: fsl-mc-msi: Fix MSI descriptor mutex lock for msi_first_desc()
Shin'ichiro Kawasaki [Tue, 12 Apr 2022 07:56:36 +0000 (16:56 +0900)]
bus: fsl-mc-msi: Fix MSI descriptor mutex lock for msi_first_desc()

Commit e8604b1447b4 introduced a call to the helper function
msi_first_desc(), which needs MSI descriptor mutex lock before
call. However, the required mutex lock was not added. This results in
lockdep assertion:

 WARNING: CPU: 4 PID: 119 at kernel/irq/msi.c:274 msi_first_desc+0xd0/0x10c
  msi_first_desc+0xd0/0x10c
  fsl_mc_msi_domain_alloc_irqs+0x7c/0xc0
  fsl_mc_populate_irq_pool+0x80/0x3cc

Fix this by adding the mutex lock and unlock around the function call.

Fixes: e8604b1447b4 ("bus: fsl-mc-msi: Simplify MSI descriptor handling")
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220412075636.755454-1-shinichiro.kawasaki@wdc.com
2 years agokernfs: fix NULL dereferencing in kernfs_remove
Minchan Kim [Wed, 27 Apr 2022 17:21:51 +0000 (10:21 -0700)]
kernfs: fix NULL dereferencing in kernfs_remove

kernfs_remove supported NULL kernfs_node param to bail out but revent
per-fs lock change introduced regression that dereferencing the
param without NULL check so kernel goes crash.

This patch checks the NULL kernfs_node in kernfs_remove and if so,
just return.

Quote from bug report by Jirka

```
The bug is triggered by running NAS Parallel benchmark suite on
SuperMicro servers with 2x Xeon(R) Gold 6126 CPU. Here is the error
log:

[  247.035564] BUG: kernel NULL pointer dereference, address: 0000000000000008
[  247.036009] #PF: supervisor read access in kernel mode
[  247.036009] #PF: error_code(0x0000) - not-present page
[  247.036009] PGD 0 P4D 0
[  247.036009] Oops: 0000 [#1] PREEMPT SMP PTI
[  247.058060] CPU: 1 PID: 6546 Comm: umount Not tainted
5.16.0393c3714081a53795bbff0e985d24146def6f57f+ #16
[  247.058060] Hardware name: Supermicro Super Server/X11DDW-L, BIOS
2.0b 03/07/2018
[  247.058060] RIP: 0010:kernfs_remove+0x8/0x50
[  247.058060] Code: 4c 89 e0 5b 5d 41 5c 41 5d 41 5e c3 49 c7 c4 f4
ff ff ff eb b2 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00
41 54 55 <48> 8b 47 08 48 89 fd 48 85 c0 48 0f 44 c7 4c 8b 60 50 49 83
c4 60
[  247.058060] RSP: 0018:ffffbbfa48a27e48 EFLAGS: 00010246
[  247.058060] RAX: 0000000000000001 RBX: ffffffff89e31f98 RCX: 0000000080200018
[  247.058060] RDX: 0000000080200019 RSI: fffff6760786c900 RDI: 0000000000000000
[  247.058060] RBP: ffffffff89e31f98 R08: ffff926b61b24d00 R09: 0000000080200018
[  247.122048] R10: ffff926b61b24d00 R11: ffff926a8040c000 R12: ffff927bd09a2000
[  247.122048] R13: ffffffff89e31fa0 R14: dead000000000122 R15: dead000000000100
[  247.122048] FS:  00007f01be0a8c40(0000) GS:ffff926fa8e40000(0000)
knlGS:0000000000000000
[  247.122048] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  247.122048] CR2: 0000000000000008 CR3: 00000001145c6003 CR4: 00000000007706e0
[  247.122048] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  247.122048] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  247.122048] PKRU: 55555554
[  247.122048] Call Trace:
[  247.122048]  <TASK>
[  247.122048]  rdt_kill_sb+0x29d/0x350
[  247.122048]  deactivate_locked_super+0x36/0xa0
[  247.122048]  cleanup_mnt+0x131/0x190
[  247.122048]  task_work_run+0x5c/0x90
[  247.122048]  exit_to_user_mode_prepare+0x229/0x230
[  247.122048]  syscall_exit_to_user_mode+0x18/0x40
[  247.122048]  do_syscall_64+0x48/0x90
[  247.122048]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  247.122048] RIP: 0033:0x7f01be2d735b
```

Link: https://bugzilla.kernel.org/show_bug.cgi?id=215696
Link: https://lore.kernel.org/lkml/CAE4VaGDZr_4wzRn2___eDYRtmdPaGGJdzu_LCSkJYuY9BEO3cw@mail.gmail.com/
Fixes: 393c3714081a (kernfs: switch global kernfs_rwsem lock to per-fs lock)
Cc: stable@vger.kernel.org
Reported-by: Jirka Hladky <jhladky@redhat.com>
Tested-by: Jirka Hladky <jhladky@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Link: https://lore.kernel.org/r/20220427172152.3505364-1-minchan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoMerge tag 'zonefs-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal...
Linus Torvalds [Wed, 27 Apr 2022 17:30:29 +0000 (10:30 -0700)]
Merge tag 'zonefs-5.18-rc5' of git://git./linux/kernel/git/dlemoal/zonefs

Pull zonefs fixes from Damien Le Moal:
 "Two fixes for rc5:

   - Fix inode initialization to make sure that the inode flags are all
     cleared.

   - Use zone reset operation instead of close to make sure that the
     zone of an empty sequential file in never in an active state after
     closing the file"

* tag 'zonefs-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonefs: Fix management of open zones
  zonefs: Clear inode information flags on inode creation

2 years agodrm/msm/dp: remove fail safe mode related code
Kuogee Hsieh [Tue, 26 Apr 2022 21:12:14 +0000 (14:12 -0700)]
drm/msm/dp: remove fail safe mode related code

Current DP driver implementation has adding safe mode done at
dp_hpd_plug_handle() which is expected to be executed under event
thread context.

However there is possible circular locking happen (see blow stack trace)
after edp driver call dp_hpd_plug_handle() from dp_bridge_enable() which
is executed under drm_thread context.

After review all possibilities methods and as discussed on
https://patchwork.freedesktop.org/patch/483155/, supporting EDID
compliance tests in the driver is quite hacky. As seen with other
vendor drivers, supporting these will be much easier with IGT. Hence
removing all the related fail safe code for it so that no possibility
of circular lock will happen.
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
======================================================
 WARNING: possible circular locking dependency detected
 5.15.35-lockdep #6 Tainted: G        W
 ------------------------------------------------------
 frecon/429 is trying to acquire lock:
 ffffff808dc3c4e8 (&dev->mode_config.mutex){+.+.}-{3:3}, at:
dp_panel_add_fail_safe_mode+0x4c/0xa0

 but task is already holding lock:
 ffffff808dc441e0 (&kms->commit_lock[i]){+.+.}-{3:3}, at: lock_crtcs+0xb4/0x124

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #3 (&kms->commit_lock[i]){+.+.}-{3:3}:
        __mutex_lock_common+0x174/0x1a64
        mutex_lock_nested+0x98/0xac
        lock_crtcs+0xb4/0x124
        msm_atomic_commit_tail+0x330/0x748
        commit_tail+0x19c/0x278
        drm_atomic_helper_commit+0x1dc/0x1f0
        drm_atomic_commit+0xc0/0xd8
        drm_atomic_helper_set_config+0xb4/0x134
        drm_mode_setcrtc+0x688/0x1248
        drm_ioctl_kernel+0x1e4/0x338
        drm_ioctl+0x3a4/0x684
        __arm64_sys_ioctl+0x118/0x154
        invoke_syscall+0x78/0x224
        el0_svc_common+0x178/0x200
        do_el0_svc+0x94/0x13c
        el0_svc+0x5c/0xec
        el0t_64_sync_handler+0x78/0x108
        el0t_64_sync+0x1a4/0x1a8

 -> #2 (crtc_ww_class_mutex){+.+.}-{3:3}:
        __mutex_lock_common+0x174/0x1a64
        ww_mutex_lock+0xb8/0x278
        modeset_lock+0x304/0x4ac
        drm_modeset_lock+0x4c/0x7c
        drmm_mode_config_init+0x4a8/0xc50
        msm_drm_init+0x274/0xac0
        msm_drm_bind+0x20/0x2c
        try_to_bring_up_master+0x3dc/0x470
        __component_add+0x18c/0x3c0
        component_add+0x1c/0x28
        dp_display_probe+0x954/0xa98
        platform_probe+0x124/0x15c
        really_probe+0x1b0/0x5f8
        __driver_probe_device+0x174/0x20c
        driver_probe_device+0x70/0x134
        __device_attach_driver+0x130/0x1d0
        bus_for_each_drv+0xfc/0x14c
        __device_attach+0x1bc/0x2bc
        device_initial_probe+0x1c/0x28
        bus_probe_device+0x94/0x178
        deferred_probe_work_func+0x1a4/0x1f0
        process_one_work+0x5d4/0x9dc
        worker_thread+0x898/0xccc
        kthread+0x2d4/0x3d4
        ret_from_fork+0x10/0x20

 -> #1 (crtc_ww_class_acquire){+.+.}-{0:0}:
        ww_acquire_init+0x1c4/0x2c8
        drm_modeset_acquire_init+0x44/0xc8
        drm_helper_probe_single_connector_modes+0xb0/0x12dc
        drm_mode_getconnector+0x5dc/0xfe8
        drm_ioctl_kernel+0x1e4/0x338
        drm_ioctl+0x3a4/0x684
        __arm64_sys_ioctl+0x118/0x154
        invoke_syscall+0x78/0x224
        el0_svc_common+0x178/0x200
        do_el0_svc+0x94/0x13c
        el0_svc+0x5c/0xec
        el0t_64_sync_handler+0x78/0x108
        el0t_64_sync+0x1a4/0x1a8

 -> #0 (&dev->mode_config.mutex){+.+.}-{3:3}:
        __lock_acquire+0x2650/0x672c
        lock_acquire+0x1b4/0x4ac
        __mutex_lock_common+0x174/0x1a64
        mutex_lock_nested+0x98/0xac
        dp_panel_add_fail_safe_mode+0x4c/0xa0
        dp_hpd_plug_handle+0x1f0/0x280
        dp_bridge_enable+0x94/0x2b8
        drm_atomic_bridge_chain_enable+0x11c/0x168
        drm_atomic_helper_commit_modeset_enables+0x500/0x740
        msm_atomic_commit_tail+0x3e4/0x748
        commit_tail+0x19c/0x278
        drm_atomic_helper_commit+0x1dc/0x1f0
        drm_atomic_commit+0xc0/0xd8
        drm_atomic_helper_set_config+0xb4/0x134
        drm_mode_setcrtc+0x688/0x1248
        drm_ioctl_kernel+0x1e4/0x338
        drm_ioctl+0x3a4/0x684
        __arm64_sys_ioctl+0x118/0x154
        invoke_syscall+0x78/0x224
        el0_svc_common+0x178/0x200
        do_el0_svc+0x94/0x13c
        el0_svc+0x5c/0xec
        el0t_64_sync_handler+0x78/0x108
        el0t_64_sync+0x1a4/0x1a8

Changes in v2:
-- re text commit title
-- remove all fail safe mode

Changes in v3:
-- remove dp_panel_add_fail_safe_mode() from dp_panel.h
-- add Fixes

Changes in v5:
--  to=dianders@chromium.org

Changes in v6:
--  fix Fixes commit ID

Fixes: 8b2c181e3dcf ("drm/msm/dp: add fail safe mode outside of event_mutex context")
Reported-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Link: https://lore.kernel.org/r/1651007534-31842-1-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Rob Clark <robdclark@chromium.org>