Commit Graph

934562 Commits

Author SHA1 Message Date
Linus Torvalds
6a70f89cc5 More NFS Client Bugfixes for Linux 5.8
Bugfixes:
 - NFS: Fix interrupted slots by using the SEQUENCE operation
 - SUNRPC: reverte d03727b248 to fix unkillable IOs
 - xprtrdma: Fix double-free in rpcrdma_ep_create()
 - xprtrdma: Fix recursion into rpcrdma_xprt_disconnect()
 - xprtrdma: Fix return code from rpcrdma_xprt_connect()
 - xprtrdma: Fix handling of connect errors
 - xprtrdma: Fix incorrect header size calculations
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Merge tag 'nfs-for-5.8-3' of git://git.linux-nfs.org/projects/anna/linux-nfs into master

Pull NFS client fixes from Anna Schumaker:
 "A few more NFS client bugfixes for Linux 5.8:

  NFS:
   - Fix interrupted slots by using the SEQUENCE operation

  SUNRPC:
   - revert d03727b248 to fix unkillable IOs

  xprtrdma:
   - Fix double-free in rpcrdma_ep_create()
   - Fix recursion into rpcrdma_xprt_disconnect()
   - Fix return code from rpcrdma_xprt_connect()
   - Fix handling of connect errors
   - Fix incorrect header size calculations"

* tag 'nfs-for-5.8-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  SUNRPC reverting d03727b248 ("NFSv4 fix CLOSE not waiting for direct IO compeletion")
  xprtrdma: fix incorrect header size calculations
  NFS: Fix interrupted slots by sending a solo SEQUENCE operation
  xprtrdma: Fix handling of connect errors
  xprtrdma: Fix return code from rpcrdma_xprt_connect()
  xprtrdma: Fix recursion into rpcrdma_xprt_disconnect()
  xprtrdma: Fix double-free in rpcrdma_ep_create()
2020-07-17 16:37:52 -07:00
Linus Torvalds
630c183b2d ARM: SoC fixes for v5.8
This time there are a number of actual code fixes, plus
 a small set of device tree issues getting addressed:
 
   - Renesas:
     - one defconfig cleanup to allow a later Kconfig change
 
   - Intel socfpga:
     - enable QSPI devices on some machines
     - fix DTC validation warnings
 
   - TI OMAP:
     - Two DEBUG_ATOMIC_SLEEP fixes for ti-sysc interconnect target module
       driver
 
     - A regression fix for ti-sysc no-idle handling that caused issues
       compared to earlier platform data based booting
 
     - A fix for memory leak for omap_hwmod_allocate_module
 
     - Fix d_can driver probe for am437x
 
   - NXP i.MX
     - A couple of fixes on i.MX platform device registration code to stop
       the use of invalid IRQ 0.
     - Fix a regression seen on ls1021a platform, caused by commit
       52102a3ba6 ("soc: imx: move cpu code to drivers/soc/imx").
     - Fix a misconfiguration of audio SSI on imx6qdl-gw551x board.
 
   - Amlogic Meson
     - misc DT fixes
     - SoC ID fixes to detect all chips correctly
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-fixes-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc into master

Pull ARM SoC fixes from Arnd Bergmann:
 "This time there are a number of actual code fixes, plus a small set of
  device tree issues getting addressed:

  Renesas:

    - one defconfig cleanup to allow a later Kconfig change

  Intel socfpga:

    - enable QSPI devices on some machines

    - fix DTC validation warnings

  TI OMAP:

    - Two DEBUG_ATOMIC_SLEEP fixes for ti-sysc interconnect target
      module driver

    - A regression fix for ti-sysc no-idle handling that caused issues
      compared to earlier platform data based booting

    - A fix for memory leak for omap_hwmod_allocate_module

    - Fix d_can driver probe for am437x

  NXP i.MX:

    - A couple of fixes on i.MX platform device registration code to
      stop the use of invalid IRQ 0.

    - Fix a regression seen on ls1021a platform, caused by commit
      52102a3ba6 ("soc: imx: move cpu code to drivers/soc/imx").

    - Fix a misconfiguration of audio SSI on imx6qdl-gw551x board.

  Amlogic Meson:

    - misc DT fixes

    - SoC ID fixes to detect all chips correctly"

* tag 'arm-fixes-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  arm64: dts: spcfpga: Align GIC, NAND and UART nodenames with dtschema
  ARM: dts: socfpga: Align L2 cache-controller nodename with dtschema
  arm64: dts: stratix10: increase QSPI reg address in nand dts file
  arm64: dts: stratix10: add status to qspi dts node
  arm64: dts: agilex: add status to qspi dts node
  ARM: dts: Fix dcan driver probe failed on am437x platform
  ARM: OMAP2+: Fix possible memory leak in omap_hwmod_allocate_module
  arm64: defconfig: Enable CONFIG_PCIE_RCAR_HOST
  soc: imx: check ls1021a
  ARM: imx: Remove imx_add_imx_dma() unused irq_err argument
  ARM: imx: Provide correct number of resources when registering gpio devices
  ARM: dts: imx6qdl-gw551x: fix audio SSI
  bus: ti-sysc: Do not disable on suspend for no-idle
  bus: ti-sysc: Fix sleeping function called from invalid context for RTC quirk
  bus: ti-sysc: Fix wakeirq sleeping function called from invalid context
  ARM: dts: meson: Align L2 cache-controller nodename with dtschema
  arm64: dts: meson-gxl-s805x: reduce initial Mali450 core frequency
  arm64: dts: meson: add missing gxl rng clock
  soc: amlogic: meson-gx-socinfo: Fix S905X3 and S905D3 ID's
2020-07-17 15:38:22 -07:00
Linus Torvalds
a570f41989 arm64 fixes for -rc6
- Fix kernel text addresses for relocatable images booting using EFI
   and with KASLR disabled so that they match the vmlinux ELF binary.
 
 - Fix unloading and unbinding of PMU driver modules.
 
 - Fix generic mmiowb() when writeX() is called from preemptible context
   (reported by the riscv folks).
 
 - Fix ptrace hardware single-step interactions with signal handlers,
   system calls and reverse debugging.
 
 - Fix reporting of 64-bit x0 register for 32-bit tasks via 'perf_regs'.
 
 - Add comments describing syscall entry/exit tracing ABI.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux into master

Pull arm64 fixes from Will Deacon:
 "A batch of arm64 fixes.

  Although the diffstat is a bit larger than we'd usually have at this
  stage, a decent amount of it is the addition of comments describing
  our syscall tracing behaviour, and also a sweep across all the modular
  arm64 PMU drivers to make them rebust against unloading and unbinding.

  There are a couple of minor things kicking around at the moment (CPU
  errata and module PLTs for very large modules), but I'm not expecting
  any significant changes now for us in 5.8.

   - Fix kernel text addresses for relocatable images booting using EFI
     and with KASLR disabled so that they match the vmlinux ELF binary.

   - Fix unloading and unbinding of PMU driver modules.

   - Fix generic mmiowb() when writeX() is called from preemptible
     context (reported by the riscv folks).

   - Fix ptrace hardware single-step interactions with signal handlers,
     system calls and reverse debugging.

   - Fix reporting of 64-bit x0 register for 32-bit tasks via
     'perf_regs'.

   - Add comments describing syscall entry/exit tracing ABI"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  drivers/perf: Prevent forced unbinding of PMU drivers
  asm-generic/mmiowb: Allow mmiowb_set_pending() when preemptible()
  arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP
  arm64: ptrace: Use NO_SYSCALL instead of -1 in syscall_trace_enter()
  arm64: syscall: Expand the comment about ptrace and syscall(-1)
  arm64: ptrace: Add a comment describing our syscall entry/exit trap ABI
  arm64: compat: Ensure upper 32 bits of x0 are zero on syscall return
  arm64: ptrace: Override SPSR.SS when single-stepping is enabled
  arm64: ptrace: Consistently use pseudo-singlestep exceptions
  drivers/perf: Fix kernel panic when rmmod PMU modules during perf sampling
  efi/libstub/arm64: Retain 2MB kernel Image alignment if !KASLR
2020-07-17 15:27:52 -07:00
Olga Kornievskaia
65caafd0d2 SUNRPC reverting d03727b248 ("NFSv4 fix CLOSE not waiting for direct IO compeletion")
Reverting commit d03727b248 "NFSv4 fix CLOSE not waiting for
direct IO compeletion". This patch made it so that fput() by calling
inode_dio_done() in nfs_file_release() would wait uninterruptably
for any outstanding directIO to the file (but that wait on IO should
be killable).

The problem the patch was also trying to address was REMOVE returning
ERR_ACCESS because the file is still opened, is supposed to be resolved
by server returning ERR_FILE_OPEN and not ERR_ACCESS.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-07-17 14:47:38 -04:00
Linus Torvalds
4ebf8d7649 io_uring-5.8-2020-07-17
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Merge tag 'io_uring-5.8-2020-07-17' of git://git.kernel.dk/linux-block into master

Pull io_uring fix from Jens Axboe:
 "Fix for a case where, with automatic buffer selection, we can leak the
  buffer descriptor for recvmsg"

* tag 'io_uring-5.8-2020-07-17' of git://git.kernel.dk/linux-block:
  io_uring: fix recvmsg memory leak with buffer selection
2020-07-17 10:47:51 -07:00
Linus Torvalds
c9ea87dc6c block-5.8-2020-07-17
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Merge tag 'block-5.8-2020-07-17' of git://git.kernel.dk/linux-block into master

Pull block fix from Jens Axboe:
 "Single NVMe multipath capacity fix"

* tag 'block-5.8-2020-07-17' of git://git.kernel.dk/linux-block:
  nvme: explicitly update mpath disk capacity on revalidation
2020-07-17 10:45:36 -07:00
Linus Torvalds
0dd68a34ec fuse fixes for 5.8-rc6
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Merge tag 'fuse-fixes-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse into master

Pull fuse fixes from Miklos Szeredi:

 - two regressions in this cycle caused by the conversion of writepage
   list to an rb_tree

 - two regressions in v5.4 cause by the conversion to the new mount API

 - saner behavior of fsconfig(2) for the reconfigure case

 - an ancient issue with FS_IOC_{GET,SET}FLAGS ioctls

* tag 'fuse-fixes-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: Fix parameter for FS_IOC_{GET,SET}FLAGS
  fuse: don't ignore errors from fuse_writepages_fill()
  fuse: clean up condition for writepage sending
  fuse: reject options on reconfigure via fsconfig(2)
  fuse: ignore 'data' argument of mount(..., MS_REMOUNT)
  fuse: use ->reconfigure() instead of ->remount_fs()
  fuse: fix warning in tree_insert() and clean up writepage insertion
  fuse: move rb_erase() before tree_insert()
2020-07-17 10:36:19 -07:00
Linus Torvalds
44fea37378 overlayfs fixes for 5.8-rc6
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Merge tag 'ovl-fixes-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into master

Pull overlayfs fixes from Miklos Szeredi:

 - fix a regression introduced in v4.20 in handling a regenerated
   squashfs lower layer

 - two regression fixes for this cycle, one of which is Oops inducing

 - miscellaneous issues

* tag 'ovl-fixes-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: fix lookup of indexed hardlinks with metacopy
  ovl: fix unneeded call to ovl_change_flags()
  ovl: fix mount option checks for nfs_export with no upperdir
  ovl: force read-only sb on failure to create index dir
  ovl: fix regression with re-formatted lower squashfs
  ovl: fix oops in ovl_indexdir_cleanup() with nfs_export=on
  ovl: relax WARN_ON() when decoding lower directory file handle
  ovl: remove not used argument in ovl_check_origin
  ovl: change ovl_copy_up_flags static
  ovl: inode reference leak in ovl_is_inuse true case.
2020-07-17 10:29:19 -07:00
Linus Torvalds
33b9108f04 spi: Fixes for v5.8
A couple of small driver specific fixes for fairly minor issues.
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Merge tag 'spi-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into master

Pull spi fixes from Mark Brown:
 "A couple of small driver specific fixes for fairly minor issues"

* tag 'spi-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: spi-sun6i: sun6i_spi_transfer_one(): fix setting of clock rate
  spi: mediatek: use correct SPI_CFG2_REG MACRO
2020-07-17 10:24:09 -07:00
Linus Torvalds
8da822e8a5 regulator: Fixes for v5.8
The more substantial fix here is the rename of the da903x driver which
 fixes a collision with the parent MFD driver name which caused issues
 when things were built as modules.  There's also a fix for a mislableled
 regulator on the pmi8994 which is quite important for systems with that
 device.
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Merge tag 'regulator-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into master

Pull regulator fixes from Mark Brown:
 "The more substantial fix here is the rename of the da903x driver which
  fixes a collision with the parent MFD driver name which caused issues
  when things were built as modules.

  There's also a fix for a mislableled regulator on the pmi8994 which is
  quite important for systems with that device"

* tag 'regulator-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  MAINTAINERS: remove obsolete entry after file renaming
  regulator: rename da903x to da903x-regulator
  regulator: qcom_smd: Fix pmi8994 label
2020-07-17 10:20:26 -07:00
Linus Torvalds
ee43695571 regmap: Fixes for v5.8
A couple of substantial fixes here, one from Doug which fixes the
 debugfs code for MMIO regmaps (fortunately not the common case) and one
 from Marc fixing lookups of multiple regmaps for the same device (a very
 unusual case).  There's also a fix for Kconfig to ensure we enable
 SoundWire properly.
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Merge tag 'regmap-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into master

Pull regmap fixes from Mark Brown:
 "A couple of substantial fixes here, one from Doug which fixes the
  debugfs code for MMIO regmaps (fortunately not the common case) and
  one from Marc fixing lookups of multiple regmaps for the same device
  (a very unusual case).

  There's also a fix for Kconfig to ensure we enable SoundWire properly"

* tag 'regmap-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: debugfs: Don't sleep while atomic for fast_io regmaps
  regmap: add missing dependency on SoundWire
  regmap: dev_get_regmap_match(): fix string comparison
2020-07-17 09:58:18 -07:00
Linus Torvalds
60541fb624 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid into master
Pull HID fixes from Jiri Kosina:

 - linked list race condition fix in hid-steam driver from Rodrigo Rivas
   Costa

 - assorted deviceID-specific quirks and other small cosmetic cleanups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: logitech-hidpp: avoid repeated "multiplier = " log messages
  HID: logitech: Use HIDPP_RECEIVER_INDEX instead of 0xff
  HID: quirks: Ignore Simply Automated UPB PIM
  HID: apple: Disable Fn-key key-re-mapping on clone keyboards
  MAINTAINERS: update uhid and hid-wiimote entry
  HID: steam: fixes race in handling device list.
  HID: magicmouse: do not set up autorepeat
  HID: alps: support devices with report id 2
  HID: quirks: Always poll Obins Anne Pro 2 keyboard
  HID: i2c-hid: add Mediacom FlexBook edge13 to descriptor override
2020-07-17 09:43:13 -07:00
Arnd Bergmann
2648298a06 arm/arm64: dts: socfpga: fixes for v5.8
- Add status = "okay" in QSPI
 - Increase QSPI size in reg property
 - Fix dtschema for SoCFPGA platforms
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Merge tag 'socfpga_fixes_for_v5.8_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/fixes

arm/arm64: dts: socfpga: fixes for v5.8
- Add status = "okay" in QSPI
- Increase QSPI size in reg property
- Fix dtschema for SoCFPGA platforms

* tag 'socfpga_fixes_for_v5.8_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  arm64: dts: spcfpga: Align GIC, NAND and UART nodenames with dtschema
  ARM: dts: socfpga: Align L2 cache-controller nodename with dtschema
  arm64: dts: stratix10: increase QSPI reg address in nand dts file
  arm64: dts: stratix10: add status to qspi dts node
  arm64: dts: agilex: add status to qspi dts node

Link: https://lore.kernel.org/r/20200717155758.18233-1-dinguyen@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-17 18:01:41 +02:00
Arnd Bergmann
f7d96b86e0 Renesas fixes for v5.8
- Replace CONFIG_PCIE_RCAR by CONFIG_PCIE_RCAR_HOST in the defconfig,
     to unblock a planned Kconfig change.
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Merge tag 'renesas-fixes-for-v5.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/fixes

Renesas fixes for v5.8

  - Replace CONFIG_PCIE_RCAR by CONFIG_PCIE_RCAR_HOST in the defconfig,
    to unblock a planned Kconfig change.

* tag 'renesas-fixes-for-v5.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  arm64: defconfig: Enable CONFIG_PCIE_RCAR_HOST

Link: https://lore.kernel.org/r/20200717100523.15418-1-geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-17 18:01:16 +02:00
Linus Torvalds
a238ac2d6a sound fixes for 5.8-rc6
No surprise here, just a few device-specific small fixes: two fixes
 for USB LINE6 and one for USB-audio drivers wrt syzkaller fuzzer
 issues, while the rest are all HD-audio Realtek quirks.
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Merge tag 'sound-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound into master

Pull sound fixes from Takashi Iwai:
 "No surprise here, just a few device-specific small fixes: two fixes
  for USB LINE6 and one for USB-audio drivers wrt syzkaller fuzzer
  issues, while the rest are all HD-audio Realtek quirks"

* tag 'sound-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek - fixup for yet another Intel reference board
  ALSA: hda/realtek - Enable Speaker for ASUS UX563
  ALSA: hda/realtek - Enable Speaker for ASUS UX533 and UX534
  ALSA: hda/realtek: Enable headset mic of Acer TravelMate B311R-31 with ALC256
  ALSA: hda/realtek: enable headset mic of ASUS ROG Zephyrus G14(G401) series with ALC289
  ALSA: hda/realtek - change to suitable link model for ASUS platform
  ALSA: usb-audio: Fix race against the error recovery URB submission
  ALSA: line6: Sync the pending work cancel at disconnection
  ALSA: line6: Perform sanity check for each URB creation
2020-07-17 08:48:19 -07:00
Qi Liu
f32ed8eb0e drivers/perf: Prevent forced unbinding of PMU drivers
Forcefully unbinding PMU drivers during perf sampling will lead to
a kernel panic, because the perf upper-layer framework call a NULL
pointer in this situation.

To solve this issue, "suppress_bind_attrs" should be set to true, so
that bind/unbind can be disabled via sysfs and prevent unbinding PMU
drivers during perf sampling.

Signed-off-by: Qi Liu <liuqi115@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1594975763-32966-1-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-17 10:51:44 +01:00
Will Deacon
bd024e82e4 asm-generic/mmiowb: Allow mmiowb_set_pending() when preemptible()
Although mmiowb() is concerned only with serialising MMIO writes occuring
in contexts where a spinlock is held, the call to mmiowb_set_pending()
from the MMIO write accessors can occur in preemptible contexts, such
as during driver probe() functions where ordering between CPUs is not
usually a concern, assuming that the task migration path provides the
necessary ordering guarantees.

Unfortunately, the default implementation of mmiowb_set_pending() is not
preempt-safe, as it makes use of a a per-cpu variable to track its
internal state. This has been reported to generate the following splat
on riscv:

 | BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
 | caller is regmap_mmio_write32le+0x1c/0x46
 | CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.8.0-rc3-hfu+ #1
 | Call Trace:
 |  walk_stackframe+0x0/0x7a
 |  dump_stack+0x6e/0x88
 |  regmap_mmio_write32le+0x18/0x46
 |  check_preemption_disabled+0xa4/0xaa
 |  regmap_mmio_write32le+0x18/0x46
 |  regmap_mmio_write+0x26/0x44
 |  regmap_write+0x28/0x48
 |  sifive_gpio_probe+0xc0/0x1da

Although it's possible to fix the driver in this case, other splats have
been seen from other drivers, including the infamous 8250 UART, and so
it's better to address this problem in the mmiowb core itself.

Fix mmiowb_set_pending() by using the raw_cpu_ptr() to get at the mmiowb
state and then only updating the 'mmiowb_pending' field if we are not
preemptible (i.e. we have a non-zero nesting count).

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Reported-by: Palmer Dabbelt <palmer@dabbelt.com>
Reported-by: Emil Renner Berthing <kernel@esmil.dk>
Tested-by: Emil Renner Berthing <kernel@esmil.dk>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Link: https://lore.kernel.org/r/20200716112816.7356-1-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-17 10:02:03 +01:00
Linus Torvalds
8882572675 drm fixes for 5.8-rc6
dma-buf:
 - sleeping atomic fix
 
 amdgpu:
 - Fix a race condition with KIQ
 - Preemption fix
 - Fix handling of fake MST encoders
 - OLED panel fix
 - Handle allocation failure in stream construction
 - Renoir SMC fix
 - SDMA 5.x fix
 
 i915:
 - FBC w/a stride fix
 - Fix use-after-free fix on module reload
 - Ignore irq enabling on the virtual engines to fix device sleep
 - Use GTT when saving/restoring engine GPR
 - Fix selftest sort function
 
 vmwgfx:
 - black screen fix
 
 aspeed:
 - fbcon init warn fix
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Merge tag 'drm-fixes-2020-07-17-1' of git://anongit.freedesktop.org/drm/drm into master

Pull drm fixes from Dave Airlie:
 "Weekly fixes pull, big bigger than I'd normally like, but they are
  fairly scattered and small individually.

  The vmwgfx one is a black screen regression, otherwise the largest is
  an MST encoder fix for amdgpu which results in a WARN in some cases,
  and a scattering of i915 fixes.

  I'm tracking two regressions at the moment that hopefully we get
  nailed down this week for rc7.

  dma-buf:
   - sleeping atomic fix

  amdgpu:
   - Fix a race condition with KIQ
   - Preemption fix
   - Fix handling of fake MST encoders
   - OLED panel fix
   - Handle allocation failure in stream construction
   - Renoir SMC fix
   - SDMA 5.x fix

  i915:
   - FBC w/a stride fix
   - Fix use-after-free fix on module reload
   - Ignore irq enabling on the virtual engines to fix device sleep
   - Use GTT when saving/restoring engine GPR
   - Fix selftest sort function

  vmwgfx:
   - black screen fix

  aspeed:
   - fbcon init warn fix"

* tag 'drm-fixes-2020-07-17-1' of git://anongit.freedesktop.org/drm/drm:
  drm/amdgpu/sdma5: fix wptr overwritten in ->get_wptr()
  drm/amdgpu/powerplay: Modify SMC message name for setting power profile mode
  drm/amd/display: handle failed allocation during stream construction
  drm/amd/display: OLED panel backlight adjust not work with external display connected
  drm/amdgpu/display: create fake mst encoders ahead of time (v4)
  drm/amdgpu: fix preemption unit test
  drm/amdgpu/gfx10: fix race condition for kiq
  drm/i915: Recalculate FBC w/a stride when needed
  drm/i915: Move cec_notifier to intel_hdmi_connector_unregister, v2.
  drm/i915/gt: Only swap to a random sibling once upon creation
  drm/i915/gt: Ignore irq enabling on the virtual engines
  drm/i915/perf: Use GTT when saving/restoring engine GPR
  drm/i915/selftests: Fix compare functions provided for sorting
  drm/vmwgfx: fix update of display surface when resolution changes
  dmabuf: use spinlock to access dmabuf->name
  drm/aspeed: Call drm_fbdev_generic_setup after drm_dev_register
2020-07-16 21:39:51 -07:00
Dave Airlie
adbe8a3cae Merge tag 'amd-drm-fixes-5.8-2020-07-15' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.8-2020-07-15:

amdgpu:
- Fix a race condition with KIQ
- Preemption fix
- Fix handling of fake MST encoders
- OLED panel fix
- Handle allocation failure in stream construction
- Renoir SMC fix
- SDMA 5.x fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200715213914.3994-1-alexander.deucher@amd.com
2020-07-17 13:29:00 +10:00
Arnd Bergmann
b041ef0e58 Fixes for omaps for v5.8-rc cycle
Few fixes for issues noticed during testing:
 
 - Two DEBUG_ATOMIC_SLEEP fixes for ti-sysc interconnect target module
   driver
 
 - A regression fix for ti-sysc no-idle handling that caused issues
   compared to earlier platform data based booting
 
 - A fix for memory leak for omap_hwmod_allocate_module
 
 - Fix d_can driver probe for am437x
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Merge tag 'omap-for-v5.8/fixes-rc5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes

Fixes for omaps for v5.8-rc cycle

Few fixes for issues noticed during testing:

- Two DEBUG_ATOMIC_SLEEP fixes for ti-sysc interconnect target module
  driver

- A regression fix for ti-sysc no-idle handling that caused issues
  compared to earlier platform data based booting

- A fix for memory leak for omap_hwmod_allocate_module

- Fix d_can driver probe for am437x

* tag 'omap-for-v5.8/fixes-rc5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Fix dcan driver probe failed on am437x platform
  ARM: OMAP2+: Fix possible memory leak in omap_hwmod_allocate_module
  bus: ti-sysc: Do not disable on suspend for no-idle
  bus: ti-sysc: Fix sleeping function called from invalid context for RTC quirk
  bus: ti-sysc: Fix wakeirq sleeping function called from invalid context

Link: https://lore.kernel.org/r/pull-1594840100-132735@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-16 22:08:22 +02:00
Arnd Bergmann
d943a9c83e i.MX fixes for 5.8, round 2:
- A couple of fixes on i.MX platform device registration code to stop
   the use of invalid IRQ 0.
 - Fix a regression seen on ls1021a platform, caused by commit
   52102a3ba6 ("soc: imx: move cpu code to drivers/soc/imx").
 - Fix a misconfiguration of audio SSI on imx6qdl-gw551x board.
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Merge tag 'imx-fixes-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes

i.MX fixes for 5.8, round 2:

- A couple of fixes on i.MX platform device registration code to stop
  the use of invalid IRQ 0.
- Fix a regression seen on ls1021a platform, caused by commit
  52102a3ba6 ("soc: imx: move cpu code to drivers/soc/imx").
- Fix a misconfiguration of audio SSI on imx6qdl-gw551x board.

* tag 'imx-fixes-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx: check ls1021a
  ARM: imx: Remove imx_add_imx_dma() unused irq_err argument
  ARM: imx: Provide correct number of resources when registering gpio devices
  ARM: dts: imx6qdl-gw551x: fix audio SSI

Link: https://lore.kernel.org/r/20200714145649.GP15718@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-16 22:08:07 +02:00
Arnd Bergmann
c07e902a51 Amlogic fixes for v5.8-rc
- misc DT fixes, and SoC ID fixes
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Merge tag 'amlogic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/fixes

Amlogic fixes for v5.8-rc
- misc DT fixes, and SoC ID fixes

* tag 'amlogic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  ARM: dts: meson: Align L2 cache-controller nodename with dtschema
  arm64: dts: meson-gxl-s805x: reduce initial Mali450 core frequency
  arm64: dts: meson: add missing gxl rng clock
  soc: amlogic: meson-gx-socinfo: Fix S905X3 and S905D3 ID's

Link: https://lore.kernel.org/r/7hk0zc1ujc.fsf@baylibre.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-16 22:07:48 +02:00
Douglas Anderson
299632e54b
regmap: debugfs: Don't sleep while atomic for fast_io regmaps
If a regmap has "fast_io" set then its lock function uses a spinlock.
That doesn't work so well with the functions:
* regmap_cache_only_write_file()
* regmap_cache_bypass_write_file()

Both of the above functions have the pattern:
1. Lock the regmap.
2. Call:
   debugfs_write_file_bool()
     copy_from_user()
       __might_fault()
         __might_sleep()

Let's reorder things a bit so that we do all of our sleepable
functions before we grab the lock.

Fixes: d3dc5430d6 ("regmap: debugfs: Allow writes to cache state settings")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200715164611.1.I35b3533e8a80efde0cec1cc70f71e1e74b2fa0da@changeid
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-16 20:41:58 +01:00
Linus Torvalds
07a56bb875 Power management fixes for 5.8-rc6
Add missing handling of a command line switch to the intel_pstate
 driver (Rafael Wysocki) and fix the freeing of the operating
 performance point (OPP) entries for the legacy (v1) OPP table
 type (Walter Lozano).
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Merge tag 'pm-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm into master

Pull power management fixes from Rafael Wysocki:
 "Add missing handling of a command line switch to the intel_pstate
  driver (Rafael Wysocki) and fix the freeing of the operating
  performance point (OPP) entries for the legacy (v1) OPP table type
  (Walter Lozano)"

* tag 'pm-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  opp: Increase parsed_static_opps in _of_add_opp_table_v1()
  cpufreq: intel_pstate: Fix active mode setting from command line
2020-07-16 11:57:43 -07:00
Linus Torvalds
3e543a4d30 Char/Misc fixes for 5.8-rc6
Here are number of small char/misc driver fixes for 5.8-rc6
 
 Not that many complex fixes here, just a number of small fixes for
 reported issues, and some new device ids.  Nothing fancy.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into master

Pull char/misc fixes from Greg KH:
 "Here are number of small char/misc driver fixes for 5.8-rc6

  Not that many complex fixes here, just a number of small fixes for
  reported issues, and some new device ids. Nothing fancy.

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

* tag 'char-misc-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
  virtio: virtio_console: add missing MODULE_DEVICE_TABLE() for rproc serial
  intel_th: Fix a NULL dereference when hub driver is not loaded
  intel_th: pci: Add Emmitsburg PCH support
  intel_th: pci: Add Tiger Lake PCH-H support
  intel_th: pci: Add Jasper Lake CPU support
  virt: vbox: Fix guest capabilities mask check
  virt: vbox: Fix VBGL_IOCTL_VMMDEV_REQUEST_BIG and _LOG req numbers to match upstream
  uio_pdrv_genirq: fix use without device tree and no interrupt
  uio_pdrv_genirq: Remove warning when irq is not specified
  coresight: etmv4: Fix CPU power management setup in probe() function
  coresight: cti: Fix error handling in probe
  Revert "zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()"
  mei: bus: don't clean driver pointer
  misc: atmel-ssc: lock with mutex instead of spinlock
  phy: sun4i-usb: fix dereference of pointer phy0 before it is null checked
  phy: rockchip: Fix return value of inno_dsidphy_probe()
  phy: ti: j721e-wiz: Constify structs
  phy: ti: am654-serdes: Constify regmap_config
  phy: intel: fix enum type mismatch warning
  phy: intel: Fix compilation error on FIELD_PREP usage
  ...
2020-07-16 11:26:40 -07:00
Linus Torvalds
50ad1c2155 Driver core fixes for 5.8-rc6
Here are 3 driver core fixes for 5.8-rc6.
 
 They resolve some issues found with the deferred probe code for some
 types of devices on some embedded systems.  They have been tested a
 bunch and have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into master

Pull driver core fixes from Greg KH:
 "Here are 3 driver core fixes for 5.8-rc6.

  They resolve some issues found with the deferred probe code for some
  types of devices on some embedded systems. They have been tested a
  bunch and have been in linux-next for a while with no reported issues"

* tag 'driver-core-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  driver core: Avoid deferred probe due to fw_devlink_pause/resume()
  driver core: Rename dev_links_info.defer_sync to defer_hook
  driver core: Don't do deferred probe in parallel with kernel_init thread
2020-07-16 11:20:23 -07:00
Linus Torvalds
6a058f0be5 IIO/Staging driver fixes for 5.8-rc6
Here are some IIO and staging driver fixes for 5.8-rc6.
 
 The majority of fixes are for IIO drivers, resolving a number of small
 reported issues, and there are some counter fixes in here too that were
 tied to the IIO fixes.  There's only one staging driver fix here, a
 comedi fix found by code inspection.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging into master

Pull IIO and staging driver fixes from Greg KH:
 "Here are some IIO and staging driver fixes for 5.8-rc6.

  The majority of fixes are for IIO drivers, resolving a number of small
  reported issues, and there are some counter fixes in here too that
  were tied to the IIO fixes. There's only one staging driver fix here,
  a comedi fix found by code inspection.

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

* tag 'staging-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: comedi: verify array index is correct before using it
  iio: adc: ad7780: Fix a resource handling path in 'ad7780_probe()'
  iio:pressure:ms5611 Fix buffer element alignment
  iio:humidity:hts221 Fix alignment and data leak issues
  iio:humidity:hdc100x Fix alignment and data leak issues
  iio:magnetometer:ak8974: Fix alignment and data leak issues
  iio: adc: adi-axi-adc: Fix object reference counting
  iio: pressure: zpa2326: handle pm_runtime_get_sync failure
  counter: 104-quad-8: Add lock guards - filter clock prescaler
  counter: 104-quad-8: Add lock guards - differential encoder
  iio: core: add missing IIO_MOD_H2/ETHANOL string identifiers
  iio: magnetometer: ak8974: Fix runtime PM imbalance on error
  iio: mma8452: Add missed iio_device_unregister() call in mma8452_probe()
  iio:health:afe4404 Fix timestamp alignment and prevent data leak.
  iio:health:afe4403 Fix timestamp alignment and prevent data leak.
2020-07-16 11:17:41 -07:00
Linus Torvalds
7531ee3147 TTY/Serial driver fixes for 5.8-rc6
Here are some small tty and serial driver fixes for 5.8-rc6.
 
 The largest set of patches in here is a revert of the sysrq changes that
 went into 5.8-rc1 but turned out to cause a noticable overhead and cpu
 usage.
 
 Other than that, there's a few small serial driver fixes to resolve
 reported issues, and finally resolving the spinlock init problem on many
 serial driver consoles.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty into master

Pull tty/serial driver fixes from Greg KH:
 :Here are some small tty and serial driver fixes for 5.8-rc6.

  The largest set of patches in here is a revert of the sysrq changes
  that went into 5.8-rc1 but turned out to cause a noticable overhead
  and cpu usage.

  Other than that, there's a few small serial driver fixes to resolve
  reported issues, and finally resolving the spinlock init problem on
  many serial driver consoles.

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

* tag 'tty-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: core: Initialise spin lock before use in uart_configure_port()
  serial: mxs-auart: add missed iounmap() in probe failure and remove
  serial: sh-sci: Initialize spinlock for uart console
  Revert "tty: xilinx_uartps: Fix missing id assignment to the console"
  serial: core: drop redundant sysrq checks
  serial: core: fix sysrq overhead regression
  Revert "serial: core: Refactor uart_unlock_and_check_sysrq()"
  tty/serial: fix serial_core.c kernel-doc warnings
  tty: serial: cpm_uart: Fix behaviour for non existing GPIOs
2020-07-16 11:10:27 -07:00
Linus Torvalds
7e8d2f6d4d - Fix invalid index array access on int340x_thermal leading to a
kernel panic (Bartosz Szczepanek)
 
 - Fix debug message level to prevent flooding on some platform (Alex
   Hung)
 
 - Fix invalid bank access by reverting "thermal: mediatek: fix
   register index error" (Enric Balletbo i Serra)
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Merge tag 'thermal-v5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux into master

Pull thermal fixes from Daniel Lezcano:

 - Fix invalid index array access on int340x_thermal leading to a kernel
   panic (Bartosz Szczepanek)

 - Fix debug message level to prevent flooding on some platform (Alex
   Hung)

 - Fix invalid bank access by reverting "thermal: mediatek: fix register
   index error" (Enric Balletbo i Serra)

* tag 'thermal-v5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
  Revert "thermal: mediatek: fix register index error"
  thermal: int3403_thermal: Downgrade error message
  thermal/int340x_thermal: Prevent page fault on .set_mode() op
2020-07-16 11:08:54 -07:00
Rafael J. Wysocki
1740f21af5 Merge branch 'pm-cpufreq'
* pm-cpufreq:
  cpufreq: intel_pstate: Fix active mode setting from command line
2020-07-16 19:17:01 +02:00
Jens Axboe
1f273e255b Merge branch 'nvme-5.8' of git://git.infradead.org/nvme into block-5.8
Pull NVMe fix from Christoph.

* 'nvme-5.8' of git://git.infradead.org/nvme:
  nvme: explicitly update mpath disk capacity on revalidation
2020-07-16 08:58:14 -06:00
Rafael J. Wysocki
a6c99daa8c Merge branch 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull an operating performance points (OPP) framework fix for 5.8-rc6 from
Viresh Kumar:

"This fixes freeing of the OPP entries for the legacy OPP table type (v1)."

* 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  opp: Increase parsed_static_opps in _of_add_opp_table_v1()
2020-07-16 16:48:13 +02:00
Anthony Iliopoulos
05b29021fb nvme: explicitly update mpath disk capacity on revalidation
Commit 3b4b19721e ("nvme: fix possible deadlock when I/O is
blocked") reverted multipath head disk revalidation due to deadlocks
caused by holding the bd_mutex during revalidate.

Updating the multipath disk blockdev size is still required though for
userspace to be able to observe any resizing while the device is
mounted. Directly update the bdev inode size to avoid unnecessarily
holding the bdev->bd_mutex.

Fixes: 3b4b19721e ("nvme: fix possible deadlock when I/O is
blocked")

Signed-off-by: Anthony Iliopoulos <ailiop@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-16 16:40:27 +02:00
Will Deacon
5afc78551b arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP
Rather than open-code test_tsk_thread_flag() at each callsite, simply
replace the couple of offenders with calls to test_tsk_thread_flag()
directly.

Signed-off-by: Will Deacon <will@kernel.org>
2020-07-16 11:42:12 +01:00
Will Deacon
d83ee6e3e7 arm64: ptrace: Use NO_SYSCALL instead of -1 in syscall_trace_enter()
Setting a system call number of -1 is special, as it indicates that the
current system call should be skipped.

Use NO_SYSCALL instead of -1 when checking for this scenario, which is
different from the -1 returned due to a seccomp failure.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Keno Fischer <keno@juliacomputing.com>
Cc: Luis Machado <luis.machado@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-16 11:42:08 +01:00
Will Deacon
139dbe5d8e arm64: syscall: Expand the comment about ptrace and syscall(-1)
If a task executes syscall(-1), we intercept this early and force x0 to
be -ENOSYS so that we don't need to distinguish this scenario from one
where the scno is -1 because a tracer wants to skip the system call
using ptrace. With the return value set, the return path is the same as
the skip case.

Although there is a one-line comment noting this in el0_svc_common(), it
misses out most of the detail. Expand the comment to describe a bit more
about what is going on.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Keno Fischer <keno@juliacomputing.com>
Cc: Luis Machado <luis.machado@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-16 11:41:58 +01:00
Will Deacon
59ee987ea4 arm64: ptrace: Add a comment describing our syscall entry/exit trap ABI
Our tracehook logic for syscall entry/exit raises a SIGTRAP back to the
tracer following a ptrace request such as PTRACE_SYSCALL. As part of this
procedure, we clobber the reported value of one of the tracee's general
purpose registers (x7 for native tasks, r12 for compat) to indicate
whether the stop occurred on syscall entry or exit. This is a slightly
unfortunate ABI, as it prevents the tracer from accessing the real
register value and is at odds with other similar stops such as seccomp
traps.

Since we're stuck with this ABI, expand the comment in our tracehook
logic to acknowledge the issue and describe the behaviour in more detail.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Luis Machado <luis.machado@linaro.org>
Reported-by: Keno Fischer <keno@juliacomputing.com>
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-16 11:41:41 +01:00
Will Deacon
15956689a0 arm64: compat: Ensure upper 32 bits of x0 are zero on syscall return
Although we zero the upper bits of x0 on entry to the kernel from an
AArch32 task, we do not clear them on the exception return path and can
therefore expose 64-bit sign extended syscall return values to userspace
via interfaces such as the 'perf_regs' ABI, which deal exclusively with
64-bit registers.

Explicitly clear the upper 32 bits of x0 on return from a compat system
call.

Cc: <stable@vger.kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Keno Fischer <keno@juliacomputing.com>
Cc: Luis Machado <luis.machado@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-16 11:41:31 +01:00
Will Deacon
3a5a4366ce arm64: ptrace: Override SPSR.SS when single-stepping is enabled
Luis reports that, when reverse debugging with GDB, single-step does not
function as expected on arm64:

  | I've noticed, under very specific conditions, that a PTRACE_SINGLESTEP
  | request by GDB won't execute the underlying instruction. As a consequence,
  | the PC doesn't move, but we return a SIGTRAP just like we would for a
  | regular successful PTRACE_SINGLESTEP request.

The underlying problem is that when the CPU register state is restored
as part of a reverse step, the SPSR.SS bit is cleared and so the hardware
single-step state can transition to the "active-pending" state, causing
an unexpected step exception to be taken immediately if a step operation
is attempted.

In hindsight, we probably shouldn't have exposed SPSR.SS in the pstate
accessible by the GPR regset, but it's a bit late for that now. Instead,
simply prevent userspace from configuring the bit to a value which is
inconsistent with the TIF_SINGLESTEP state for the task being traced.

Cc: <stable@vger.kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Keno Fischer <keno@juliacomputing.com>
Link: https://lore.kernel.org/r/1eed6d69-d53d-9657-1fc9-c089be07f98c@linaro.org
Reported-by: Luis Machado <luis.machado@linaro.org>
Tested-by: Luis Machado <luis.machado@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-16 11:41:21 +01:00
Will Deacon
ac2081cdc4 arm64: ptrace: Consistently use pseudo-singlestep exceptions
Although the arm64 single-step state machine can be fast-forwarded in
cases where we wish to generate a SIGTRAP without actually executing an
instruction, this has two major limitations outside of simply skipping
an instruction due to emulation.

1. Stepping out of a ptrace signal stop into a signal handler where
   SIGTRAP is blocked. Fast-forwarding the stepping state machine in
   this case will result in a forced SIGTRAP, with the handler reset to
   SIG_DFL.

2. The hardware implicitly fast-forwards the state machine when executing
   an SVC instruction for issuing a system call. This can interact badly
   with subsequent ptrace stops signalled during the execution of the
   system call (e.g. SYSCALL_EXIT or seccomp traps), as they may corrupt
   the stepping state by updating the PSTATE for the tracee.

Resolve both of these issues by injecting a pseudo-singlestep exception
on entry to a signal handler and also on return to userspace following a
system call.

Cc: <stable@vger.kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Tested-by: Luis Machado <luis.machado@linaro.org>
Reported-by: Keno Fischer <keno@juliacomputing.com>
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-16 11:41:07 +01:00
Qi Liu
bdc5c744c7 drivers/perf: Fix kernel panic when rmmod PMU modules during perf sampling
When users try to remove PMU modules during perf sampling, kernel panic
will happen because the pmu->read() is a NULL pointer here.

INFO on HiSilicon hip08 platform as follow:
pc : hisi_uncore_pmu_event_update+0x30/0xa4 [hisi_uncore_pmu]
lr : hisi_uncore_pmu_read+0x20/0x2c [hisi_uncore_pmu]
sp : ffff800010103e90
x29: ffff800010103e90 x28: ffff0027db0c0e40
x27: ffffa29a76f129d8 x26: ffffa29a77ceb000
x25: ffffa29a773a5000 x24: ffffa29a77392000
x23: ffffddffe5943f08 x22: ffff002784285960
x21: ffff002784285800 x20: ffff0027d2e76c80
x19: ffff0027842859e0 x18: ffff80003498bcc8
x17: ffffa29a76afe910 x16: ffffa29a7583f530
x15: 16151a1512061a1e x14: 0000000000000000
x13: ffffa29a76f1e238 x12: 0000000000000001
x11: 0000000000000400 x10: 00000000000009f0
x9 : ffff8000107b3e70 x8 : ffff0027db0c1890
x7 : ffffa29a773a7000 x6 : 00000007f5131013
x5 : 00000007f5131013 x4 : 09f257d417c00000
x3 : 00000002187bd7ce x2 : ffffa29a38f0f0d8
x1 : ffffa29a38eae268 x0 : ffff0027d2e76c80
Call trace:
hisi_uncore_pmu_event_update+0x30/0xa4 [hisi_uncore_pmu]
hisi_uncore_pmu_read+0x20/0x2c [hisi_uncore_pmu]
__perf_event_read+0x1a0/0x1f8
flush_smp_call_function_queue+0xa0/0x160
generic_smp_call_function_single_interrupt+0x18/0x20
handle_IPI+0x31c/0x4dc
gic_handle_irq+0x2c8/0x310
el1_irq+0xcc/0x180
arch_cpu_idle+0x4c/0x20c
default_idle_call+0x20/0x30
do_idle+0x1b4/0x270
cpu_startup_entry+0x28/0x30
secondary_start_kernel+0x1a4/0x1fc

To solve the above issue, current module should be registered to kernel,
so that try_module_get() can be invoked when perf sampling starts. This
adds the reference counting of module and could prevent users from removing
modules during sampling.

Reported-by: Haifeng Wang <wang.wanghaifeng@huawei.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1594891165-8228-1-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-16 11:35:24 +01:00
PeiSen Hou
5734e509d5 ALSA: hda/realtek - fixup for yet another Intel reference board
Add headset_jack for the intel reference board support with
10ec:1230.

Signed-off-by: PeiSen Hou <pshou@realtek.com.tw>
Link: https://lore.kernel.org/r/20200716090134.9811-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-16 11:02:21 +02:00
Kailang Yang
158ae2f5e6 ALSA: hda/realtek - Enable Speaker for ASUS UX563
ASUS UX563 speaker can't output.
Add quirk to link suitable model will enable it.
This model also could enable headset Mic.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/96dee3ab01a04c28a7b44061e88009dd@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-16 09:39:30 +02:00
Kailang Yang
473fbe13fd ALSA: hda/realtek - Enable Speaker for ASUS UX533 and UX534
ASUS UX533 and UX534 speaker still can't output.
End User feedback speaker didn't have output.
Add this COEF value will enable it.

Fixes: 4e05110673 ("ALSA: hda/realtek: Enable audio jacks of ASUS UX533FD with ALC294")
Cc: <stable@vger.kernel.org>
Signed-off-by: Kailang Yang <kailang@realtek.com>
Link: https://lore.kernel.org/r/80334402a93b48e385f8f4841b59ae09@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-16 09:16:46 +02:00
Amir Goldstein
4518dfcf76 ovl: fix lookup of indexed hardlinks with metacopy
We recently moved setting inode flag OVL_UPPERDATA to ovl_lookup().

When looking up an overlay dentry, upperdentry may be found by index
and not by name.  In that case, we fail to read the metacopy xattr
and falsly set the OVL_UPPERDATA on the overlay inode.

This caused a regression in xfstest overlay/033 when run with
OVERLAY_MOUNT_OPTIONS="-o metacopy=on".

Fixes: 28166ab3c8 ("ovl: initialize OVL_UPPERDATA in ovl_lookup()")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-07-16 07:24:47 +02:00
Amir Goldstein
81a33c1ee9 ovl: fix unneeded call to ovl_change_flags()
The check if user has changed the overlay file was wrong, causing unneeded
call to ovl_change_flags() including taking f_lock on every file access.

Fixes: d989903058 ("ovl: do not generate duplicate fsnotify events for "fake" path")
Cc: <stable@vger.kernel.org> # v4.19+
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-07-16 07:24:47 +02:00
Walter Lozano
6544abc520 opp: Increase parsed_static_opps in _of_add_opp_table_v1()
Currently, when using _of_add_opp_table_v2 parsed_static_opps is
increased and this value is used in _opp_remove_all_static() to
check if there are static opp entries that need to be freed.
Unfortunately this does not happen when using _of_add_opp_table_v1(),
which leads to warnings.

This patch increases parsed_static_opps in _of_add_opp_table_v1() in a
similar way as in _of_add_opp_table_v2().

Fixes: 03758d6026 ("opp: Replace list_kref with a local counter")
Cc: v5.6+ <stable@vger.kernel.org> # v5.6+
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
[ Viresh: Do the operation with lock held and set the value to 1 instead
	  of incrementing it ]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-07-16 08:50:54 +05:30
Linus Torvalds
f8456690ba A couple build fixes for issues exposed this merge window and a fix for
the eMMC clk on AST2600 SoCs that fixes the rate that is calculated by
 the clk framework.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux into master

Pull clk fixes from Stephen Boyd:
 "A couple build fixes for issues exposed this merge window and a fix
  for the eMMC clk on AST2600 SoCs that fixes the rate that is
  calculated by the clk framework"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: Specify IOMEM dependency for HSDK pll driver
  clk: AST2600: Add mux for EMMC clock
  clk: mvebu: ARMADA_AP_CPU_CLK needs to select ARMADA_AP_CP_HELPER
2020-07-15 19:00:12 -07:00
Dave Airlie
524d4f71e7 Merge tag 'drm-intel-fixes-2020-07-15' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.8-rc6:
- FBC w/a stride fix
- Fix use-after-free fix on module reload
- Ignore irq enabling on the virtual engines to fix device sleep
- Use GTT when saving/restoring engine GPR
- Fix selftest sort function

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87ft9t0vtt.fsf@intel.com
2020-07-16 10:10:16 +10:00
Dave Airlie
03d54ef0a1 * aspeed: setup fbdev console after registering device; avoids warning
and stacktrace in dmesg log
  * dmabuf: protect dmabuf->name with a spinlock; avoids sleeping in
    atomic context
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Merge tag 'drm-misc-fixes-2020-07-15' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

 * aspeed: setup fbdev console after registering device; avoids warning
   and stacktrace in dmesg log
 * dmabuf: protect dmabuf->name with a spinlock; avoids sleeping in
   atomic context

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200715171756.GA18606@linux-uq9g
2020-07-16 10:09:59 +10:00