Commit Graph

781906 Commits

Author SHA1 Message Date
Mukesh Ojha 13ba17bee1 notifier: Remove notifier header file wherever not used
The conversion of the hotplug notifiers to a state machine left the
notifier.h includes around in some places. Remove them.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/1535114033-4605-1-git-send-email-mojha@codeaurora.org
2018-08-30 12:56:40 +02:00
Vincent Whitchurch cb9d7fd51d watchdog: Mark watchdog touch functions as notrace
Some architectures need to use stop_machine() to patch functions for
ftrace, and the assumption is that the stopped CPUs do not make function
calls to traceable functions when they are in the stopped state.

Commit ce4f06dcbb ("stop_machine: Touch_nmi_watchdog() after
MULTI_STOP_PREPARE") added calls to the watchdog touch functions from
the stopped CPUs and those functions lack notrace annotations.  This
leads to crashes when enabling/disabling ftrace on ARM kernels built
with the Thumb-2 instruction set.

Fix it by adding the necessary notrace annotations.

Fixes: ce4f06dcbb ("stop_machine: Touch_nmi_watchdog() after MULTI_STOP_PREPARE")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: oleg@redhat.com
Cc: tj@kernel.org
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180821152507.18313-1-vincent.whitchurch@axis.com
2018-08-30 12:56:40 +02:00
Jann Horn f12d11c5c1 x86/entry/64: Wipe KASAN stack shadow before rewind_stack_do_exit()
Reset the KASAN shadow state of the task stack before rewinding RSP.
Without this, a kernel oops will leave parts of the stack poisoned, and
code running under do_exit() can trip over such poisoned regions and cause
nonsensical false-positive KASAN reports about stack-out-of-bounds bugs.

This does not wipe the exception stacks; if an oops happens on an exception
stack, it might result in random KASAN false-positives from other tasks
afterwards. This is probably relatively uninteresting, since if the kernel
oopses on an exception stack, there are most likely bigger things to worry
about. It'd be more interesting if vmapped stacks and KASAN were
compatible, since then handle_stack_overflow() would oops from exception
stack context.

Fixes: 2deb4be280 ("x86/dumpstack: When OOPSing, rewind the stack before do_exit()")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: kasan-dev@googlegroups.com
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180828184033.93712-1-jannh@google.com
2018-08-30 11:37:09 +02:00
Nick Desaulniers 1f59a4581b x86/irqflags: Mark native_restore_fl extern inline
This should have been marked extern inline in order to pick up the out
of line definition in arch/x86/kernel/irqflags.S.

Fixes: 208cbb3255 ("x86/irqflags: Provide a declaration for native_save_fl")
Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180827214011.55428-1-ndesaulniers@google.com
2018-08-30 11:37:09 +02:00
Masahiro Yamada 36bf9da291 x86/build: Remove jump label quirk for GCC older than 4.5.2
Commit cafa0010cd ("Raise the minimum required gcc version to 4.6")
bumped the minimum GCC version to 4.6 for all architectures.

Remove the workaround code.

It was the only user of cc-if-fullversion.  Remove the macro as well.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/1535348714-25457-1-git-send-email-yamada.masahiro@socionext.com
2018-08-30 11:37:08 +02:00
Linus Torvalds 58c3f14f86 RISC-V Fixes and Cleanups for 4.19-rc2
This tag contains a handful of patches that filtered their way in during
 the merge window but just didn't make the deadline.  It includes:
 
 * Additional documentation in the riscv,cpu-intc device tree binding
   that resulted from some feedback I missed in the original patch set.
 * A build fix that provides the definition of tlb_flush() before
   including tlb.h, which fixes a RISC-V build regression introduced
   during this merge window.
 * A cosmetic cleanup to sys_riscv_flush_icache().
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEAM520YNJYN/OiG3470yhUCzLq0EFAluFqjwTHHBhbG1lckBk
 YWJiZWx0LmNvbQAKCRDvTKFQLMurQTR6D/922qwJGkJumCq6CcYP9ib7dc71vdME
 2mIATl/6pU0m74GQDY0R5JtSaKlMZcBOGgEyz8cbxgmx2QISglg5IeF/AAQL5UUW
 mD+zSzB4rThzjfgfydkA8YxR4zKHAZaaTlIkdJgvkKdrj1qfV67z4JCsDxbFJYrS
 x7WBcFmCXhC9WZzgU+tfN6W6ugtvKg0OZ+Fh6kpyOA3DULgs+C3xRAbnW4joCUeT
 21lvm+qSCvEhicL/ZxV+l07WYNpkSCtFxbtY+Hw8//04lcFvmETzFUZCBAjq4S6z
 v6OC+rLw839CGEFsH/xrluoRIZAldGVSLbP/wp2Cu/zWlHnD1iwozkWeOIGwdMdy
 XxVP9qHf98S+4ygXHivi++n3TtAR/JB65TME70j1TGGwUjl75xFIhd3rD1tUXwl3
 /6Wipah3lOST1F/lQ5KAPpyOp7wYspIDYkNxP20uovcKTw/e0/WJha6GyGJ8wa14
 Fi16QHFoSRRcQCoSHc9texnF7Uq1Nn2h57tRFnFq/sS0EGmVJ2ghVcxwxa4CcGuq
 ba8Gib9SZtWVVlptzqydkjGC85Utrt30+BjzH+fPfzTKXuE9E8eAwnlHB8FPm2+W
 WQXhS7Tty8l7w7CpRGCaaqCT9c5Wvb8X2uEUyRqBP3+W4pePLNyqMUimGZ5q4boh
 HC6d9UHkpl9Ucg==
 =5UCG
 -----END PGP SIGNATURE-----

Merge tag 'riscv-for-linus-4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux

Pull RISC-V fixes from Palmer Dabbelt:
 "RISC-V Fixes and Cleanups for 4.19-rc2

  This contains a handful of patches that filtered their way in during
  the merge window but just didn't make the deadline. It includes:

   - Additional documentation in the riscv,cpu-intc device tree binding
     that resulted from some feedback I missed in the original patch
     set.

   - A build fix that provides the definition of tlb_flush() before
     including tlb.h, which fixes a RISC-V build regression introduced
     during this merge window.

   - A cosmetic cleanup to sys_riscv_flush_icache()"

* tag 'riscv-for-linus-4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
  RISC-V: Use a less ugly workaround for unused variable warnings
  riscv: tlb: Provide definition of tlb_flush() before including tlb.h
  dt-bindings: riscv,cpu-intc: Cleanups from a missed review
2018-08-29 18:41:48 -07:00
Dave Airlie 49a51c4b40 - fix for GLK and CNL watermark workaround
- fix for display affecting NUCs with LSPCON
 - freeing an allocated write_buf on hdcp
 - audio hook when display is disabled
 - vma stop holding ppgtt reference
 -----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJbhy/zAAoJEPpiX2QO6xPKgpkH/2UA0obUqYSS1vCAco60bAS3
 4wEPOSzh2REQNEGmcWGrSOEv2AaYmta1/U0jLbQOiTIuyufLNLjdBCsaAQeOViwg
 NxqLuv95GPWypSJLhDAPXNqTHPdzR7WeOOzaNMHWpmbFRAri0UZ7JQTOcBQzISaS
 MWEB52nXQNd6GE+kfOI0bR2JnrtfTv+K0E6bYRa5TonfxnlAOswHVqS4Lp1a0vEG
 Lw1gBt/rRMXrLnAxtatcL2Y6Dz/5z0LvU/2cpbvCfM24lc1/P8HQPYNgE0zBmG6L
 ewP+5uVxnD9hB/yIqkYcpHv14+5LCLcwWvk+GYffrEfXGy3jih+/HyV3zy88AGw=
 =XE1H
 -----END PGP SIGNATURE-----

Merge tag 'drm-intel-fixes-2018-08-29' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- fix for GLK and CNL watermark workaround
- fix for display affecting NUCs with LSPCON
- freeing an allocated write_buf on hdcp
- audio hook when display is disabled
- vma stop holding ppgtt reference

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180829234512.GA32468@intel.com
2018-08-30 11:35:03 +10:00
Dave Airlie 185c3cfaca Merge branch 'drm-fixes-4.19' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Fixes for 4.19:
- SR-IOV fixes
- Kasan and page fault fix on device removal
- S3 stability fix for CZ/ST
- VCE regression fixes for CIK parts
- Avoid holding the mn_lock when allocating memory
- DC memory leak fix
- BO eviction fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180829202555.2653-1-alexander.deucher@amd.com
2018-08-30 11:34:14 +10:00
Dave Airlie 852fde0a34 Merge branch 'mediatek-drm-fixes-4.19' of https://github.com/ckhu-mediatek/linux.git-tags into drm-fixes
"Here are some fixes for mediatek drm driver."

Mostly fixes around the RDMA and Overlay

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1535346194.27648.5.camel@mtksdaap41
2018-08-30 11:28:57 +10:00
Ard Biesheuvel ff69279a44 powerpc: disable support for relative ksymtab references
The newly added code that emits ksymtab entries as pairs of 32-bit
relative references interacts poorly with the way powerpc lays out its
address space: when a module exports a per-CPU variable, the primary
module region covering the ksymtab entry -and thus the 32-bit relative
reference- is too far away from the actual per-CPU variable's base
address (to which the per-CPU offsets are applied to obtain the
respective address of each CPU's copy), resulting in corruption when the
module loader attempts to resolve symbol references of modules that are
loaded on top and link to the exported per-CPU symbol.

So let's disable this feature on powerpc.  Even though it implements
CONFIG_RELOCATABLE, it does not implement CONFIG_RANDOMIZE_BASE and so
KASLR kernels (which are the main target of the feature) do not exist on
powerpc anyway.

Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Suggested-by: Nicholas Piggin <nicholas.piggin@gmail.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-29 16:12:07 -07:00
Linus Torvalds af3a5fe4dd Merge tag 'hwmon-for-linus-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:

 - Fix potential Spectre v1 in nct6775

 - Add error checking to adt7475 driver

 - Fix reading shunt resistor value in ina2xx driver

* tag 'hwmon-for-linus-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (nct6775) Fix potential Spectre v1
  hwmon: (adt7475) Make adt7475_read_word() return errors
  hwmon: (adt7475) Potential error pointer dereferences
  hwmon: (ina2xx) fix sysfs shunt resistor read access
2018-08-29 16:03:45 -07:00
Linus Torvalds f3f106dac0 \n
-----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAluGfbAACgkQnJ2qBz9k
 QNmkVQgAjv/tCHStwoQ4Hhr6q5wLU9apAW5WC7Or2MyNfqoJsKgyujpikwFMa0xY
 wkVqlITYavvUKl/nRlQ6hpZtAY7hi1Y7GvIYs2ci6QO4YAUuBoH7qPLKqyZYzXx+
 mBaC68885nMMDqIHvsCcLurwTiDer6XQXXPDmpMoO9g4kyVuhm2e0/M7CPaA4Ue9
 WEfBPBROSNdRH7Wtww/MUvtfd+9mezdlpUQZVVO5cdhAVQ8pzW2g2piYtwIpaY7E
 DiJ1zcgaqCnni+b69x4wz8TwB0q8wZJjrPfJgf4X7mIGBZrw80yNRlevfe5SxwdJ
 mkMDvjaD0TEItvpjgTZReXaAjFOWTA==
 =E61M
 -----END PGP SIGNATURE-----

Merge tag 'for_v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull misc fs fixes from Jan Kara:

 - make UDF to properly mount media created by Win7

 - make isofs to properly refuse devices with large physical block size

 - fix a Spectre gadget in quotactl(2)

 - fix a warning in fsnotify code hit by syzkaller

* tag 'for_v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: Fix mounting of Win7 created UDF filesystems
  udf: Remove dead code from udf_find_fileset()
  fs/quota: Fix spectre gadget in do_quotactl
  fs/quota: Replace XQM_MAXQUOTAS usage with MAXQUOTAS
  isofs: reject hardware sector size > 2048 bytes
  fsnotify: fix false positive warning on inode delete
2018-08-29 14:56:45 -07:00
Linus Torvalds ff81a521b8 nios2 fix for v4.19-rc2
nios2: kconfig: remove duplicate DEBUG_STACK_USAGE symbol defintions
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJbhPHPAAoJEFWoEK+e3syCR50QAJGg/yEJ4BiYg3sjj9bEwwIq
 PRvGXPONgBp9qzmgWoMLLimBQx72JEi4y+Z90g2rXRqag8m1vYdQ1/uJNiIfioK3
 BWbA982dksIl2KYm1DKW0O2WrULTe7HUUPf//sXsS4+BP4B1ms2ungjBaP7Xz/Dg
 8vIS2ifMHSIR9WJDIxIhTJAtIzDmKz81mnvQmbjMhUZA7ctzEQzpZWxjEVTCKRTz
 bYnTFzf9qmEFxEKAVPQW5L1J4J7Gx69xxMNJ9pkC74GW2Az26/fQlHov5jWLjs/m
 XYJJgVXUzbcTK1qJ9W3WHwaYmjSO7CJ9yNG8/RzfuT6MgVaQm24gaIYtoegVNUU1
 X4E77vWwLn4Z5ZeQ590Ns/hYAedA9UIXeqHN3glGR65xiWRML6QxEX8XzjQSHOpU
 KyzoFXzIf2ftadkRXS65PRqlV6DWxGPof+Fyhq2tjEGQi/lCcXrwor4Cn3M3HrD/
 MwSNVB0RBaTL0MnSQ0wo+eNxtjdLvrk7Eb6PUSbgEKoaJqO7VZzlqWtLUc5zYkao
 uzBTOKwgQLsSG8UyPYIDYERnuGBp1H46NNqES9Wrlv6T51FMqNfm/dJY2sBcYZrf
 q3wZHxvw/chLQN7mB8P7Li76G9fCEZYJI1C6FGo1hfiP9vQxTnf5xjigXMbsasg4
 3Pog3Sk1xZBTh44oDsEb
 =6Bl4
 -----END PGP SIGNATURE-----

Merge tag 'nios2-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2

Pull nios2 fix from Ley Foon Tan:
 "remove duplicate DEBUG_STACK_USAGE symbol defintions"

* tag 'nios2-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
  nios2: kconfig: remove duplicate DEBUG_STACK_USAGE symbol defintions
2018-08-29 14:51:32 -07:00
Chris Wilson 80ab316901 drm/i915/audio: Hook up component bindings even if displays are disabled
If the display has been disabled by modparam, we still want to connect
together the HW bits and bobs with the associated drivers so that we can
continue to manage their runtime power gating.

Fixes: 108109444f ("drm/i915: Check num_pipes before initializing audio component")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Elaine Wang <elaine.wang@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180817100241.4628-1-chris@chris-wilson.co.uk
(cherry picked from commit 35a5fd9ebf)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-08-29 14:11:53 -07:00
Fredrik Schön 299c2a904b drm/i915: Increase LSPCON timeout
100 ms is not enough time for the LSPCON adapter on Intel NUC devices to
settle. This causes dropped display modes at boot or screen reconfiguration.
Empirical testing can reproduce the error up to a timeout of 190 ms. Basic
boot and stress testing at 200 ms has not (yet) failed.

Increase timeout to 400 ms to get some margin of error.

Changes from v1:
The initial suggestion of 1000 ms was lowered due to concerns about delaying
valid timeout cases.
Update patch metadata.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107503
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1570392
Fixes: 357c0ae919 ("drm/i915/lspcon: Wait for expected LSPCON mode to settle")
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: <stable@vger.kernel.org> # v4.11+
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Fredrik Schön <fredrik.schon@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180817200728.8154-1-fredrik.schon@gmail.com
(cherry picked from commit 59f1c8ab30)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-08-29 14:11:53 -07:00
Chris Wilson f013027e26 drm/i915: Stop holding a ref to the ppgtt from each vma
The context owns both the ppgtt and the vma within it, and our activity
tracking on the context ensures that we do not release active ppgtt. As
the context fulfils our obligations for active memory tracking, we can
relinquish the reference from the vma.

This fixes a silly transient refleak from closed vma being kept alive
until the entire system was idle, keeping all vm alive as well.

Reported-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Testcase: igt/gem_ctx_create/files
Fixes: 3365e2268b ("drm/i915: Lazily unbind vma on close")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Tested-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180816073448.19396-1-chris@chris-wilson.co.uk
(cherry picked from commit a4417b7b41)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-08-29 14:11:53 -07:00
Linus Torvalds b4df50de6a Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:

 - Check for the right CPU feature bit in sm4-ce on arm64.

 - Fix scatterwalk WARN_ON in aes-gcm-ce on arm64.

 - Fix unaligned fault in aesni on x86.

 - Fix potential NULL pointer dereference on exit in chtls.

 - Fix DMA mapping direction for RSA in caam.

 - Fix error path return value for xts setkey in caam.

 - Fix address endianness when DMA unmapping in caam.

 - Fix sleep-in-atomic in vmx.

 - Fix command corruption when queue is full in cavium/nitrox.

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: cavium/nitrox - fix for command corruption in queue full case with backlog submissions.
  crypto: vmx - Fix sleep-in-atomic bugs
  crypto: arm64/aes-gcm-ce - fix scatterwalk API violation
  crypto: aesni - Use unaligned loads from gcm_context_data
  crypto: chtls - fix null dereference chtls_free_uld()
  crypto: arm64/sm4-ce - check for the right CPU feature bit
  crypto: caam - fix DMA mapping direction for RSA forms 2 & 3
  crypto: caam/qi - fix error path in xts setkey
  crypto: caam/jr - fix descriptor DMA unmapping
2018-08-29 13:38:39 -07:00
Nishanth Menon 67e6ddb5be arm64: defconfig: Enable TI's AM6 SoC platform
Enable K3 SoC platform for TI's AM6 SoC.

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-08-29 11:51:26 -07:00
Linus Walleij 1dbd150d04 ARM: defconfig: Update the ARM Versatile defconfig
This updates the ARM Versatile defconfig to the latest
Kconfig structural changes and adds the DUMB VGA bridge
driver so that VGA works out of the box, e.g. with QEMU.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-08-29 11:50:46 -07:00
Olof Johansson 55a020e21c i.MX fixes for 4.19:
- i.MX display folks decided to switch MXS display driver from legacy
    FB to DRM during 4.19 merge window.  It leads to a fallout on some
    Freescale/NXP development boards with Seiko 43WVF1G panel, because
    this DRM panel driver is not enabled in i.MX defconfig.  Here is
    a series from Fabio to convert i.MX23/28 EVK DT to Seiko 43WVF1G
    panel bindings and enable the panel driver in i.MX defconfig, so that
    users can still get functional LCD on these boards by default.
  - A fix from Leonard to revert incorrect legacy PCI irq mapping in
    i.MX7 device tree, that was caused by document errors.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJbg7/LAAoJEFBXWFqHsHzO38IH/RzMWtWioThZcIVcVAlS3Xeg
 y43VPhcuiMbllyxM5PhW6kQxbrHLbOT08v/RDm5VQ/kI2ze66iyzGfKJUycfrCi7
 sbiFcVg4H8vaEHakE++BWOZCiNITA9ndQ0ZgDcu1f4uglyuFFxYfKyJKfraRPDRm
 TIEf+aLgxNlsgMh+JV/X23pX8pPdMvmb6LNi7UBfilSozMeEbFMa6STSXwihYiVq
 4+1e1IU2jNoq9p3jndn85QDBvX36leGopDXjrEm/lS5GNx+dCJzGlu5Bhlcr+n7b
 G69O0UogMW4QjEYOvHGAP+ROV8luzNFkAid5M7JUJImLcZ/A+Zx/f9Idro+F1ss=
 =eMyz
 -----END PGP SIGNATURE-----

Merge tag 'imx-fixes-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 4.19:
 - i.MX display folks decided to switch MXS display driver from legacy
   FB to DRM during 4.19 merge window.  It leads to a fallout on some
   Freescale/NXP development boards with Seiko 43WVF1G panel, because
   this DRM panel driver is not enabled in i.MX defconfig.  Here is
   a series from Fabio to convert i.MX23/28 EVK DT to Seiko 43WVF1G
   panel bindings and enable the panel driver in i.MX defconfig, so that
   users can still get functional LCD on these boards by default.
 - A fix from Leonard to revert incorrect legacy PCI irq mapping in
   i.MX7 device tree, that was caused by document errors.

* tag 'imx-fixes-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx_v6_v7_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1G
  ARM: mxs_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1G
  ARM: dts: imx23-evk: Convert to the new display bindings
  ARM: dts: imx23-evk: Move regulators outside simple-bus
  ARM: dts: imx28-evk: Convert to the new display bindings
  ARM: dts: imx28-evk: Move regulators outside simple-bus
  Revert "ARM: dts: imx7d: Invert legacy PCI irq mapping"

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-08-29 11:50:14 -07:00
Fabrizio Castro 74081c9f16 dt-bindings: watchdog: renesas-wdt: Document r8a774a1 support
RZ/G2M (R8A774A1) watchdog implementation is compatible with R-Car
Gen3, therefore add relevant documentation.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2018-08-29 20:32:04 +02:00
Jens Axboe 52bd456a66 Merge branch 'nvme-4.19' of git://git.infradead.org/nvme into for-linus
Pull NVMe fixes from Christoph.

* 'nvme-4.19' of git://git.infradead.org/nvme:
  nvmet: free workqueue object if module init fails
  nvme-fcloop: Fix dropped LS's to removed target port
  nvme-pci: add a memory barrier to nvme_dbbuf_update_and_check_event
2018-08-29 11:05:20 -06:00
Scott Bauer 8f3fafc9c2 cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status
Like d88b6d04: "cdrom: information leak in cdrom_ioctl_media_changed()"

There is another cast from unsigned long to int which causes
a bounds check to fail with specially crafted input. The value is
then used as an index in the slot array in cdrom_slot_status().

Signed-off-by: Scott Bauer <scott.bauer@intel.com>
Signed-off-by: Scott Bauer <sbauer@plzdonthack.me>
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-08-29 08:09:20 -06:00
Johan Hovold 36156f9241 of: add helper to lookup compatible child node
Add of_get_compatible_child() helper that can be used to lookup
compatible child nodes.

Several drivers currently use of_find_compatible_node() to lookup child
nodes while failing to notice that the of_find_ functions search the
entire tree depth-first (from a given start node) and therefore can
match unrelated nodes. The fact that these functions also drop a
reference to the node they start searching from (e.g. the parent node)
is typically also overlooked, something which can lead to use-after-free
bugs.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2018-08-29 08:06:46 -05:00
Marc Zyngier 1d8f574708 arm/arm64: smccc-1.1: Make return values unsigned long
An unfortunate consequence of having a strong typing for the input
values to the SMC call is that it also affects the type of the
return values, limiting r0 to 32 bits and r{1,2,3} to whatever
was passed as an input.

Let's turn everything into "unsigned long", which satisfies the
requirements of both architectures, and allows for the full
range of return values.

Reported-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-08-29 11:42:20 +01:00
Julien Grall afce0cc9ad Documentation/arm64/sve: Couple of improvements and typos
- Fix mismatch between SVE registers (Z) and FPSIMD register (V)
  - Don't prefix the path for [3] with Linux to stay consistent with
    [1] and [2].

Signed-off-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-08-29 11:33:19 +01:00
Linus Torvalds 3f16503b7d Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal fixes from Eduardo Valentin:
 "Minor fixes to OF thermal, qoriq, and rcar drivers"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: of-thermal: disable passive polling when thermal zone is disabled
  thermal: rcar_gen3_thermal: convert to SPDX identifiers
  thermal: rcar_thermal: convert to SPDX identifiers
  thermal: qoriq: Switch to SPDX identifier
  thermal: qoriq: Simplify the 'site' variable assignment
  thermal: qoriq: Use devm_thermal_zone_of_sensor_register()
2018-08-28 16:11:34 -07:00
Gustavo A. R. Silva 450b6b9b16 clk: npcm7xx: fix memory allocation
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:

struct foo {
	int stuff;
        void *entry[];
};

instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count,
GFP_KERNEL);

Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:

instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);

Notice that, currently, there is a bug during the allocation:

sizeof(npcm7xx_clk_data) should be sizeof(*npcm7xx_clk_data)

Fix this bug by using struct_size() in kzalloc()

This issue was detected with the help of Coccinelle.

Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Avi Fishman <avifishman70@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-08-28 15:12:59 -07:00
Colin Ian King 6d3c8ce012 x86/xen: remove redundant variable save_pud
Variable save_pud is being assigned but is never used hence it is
redundant and can be removed.

Cleans up clang warning:
variable 'save_pud' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-08-28 17:37:40 -04:00
Joe Jin 076e2cedd6 xen: export device state to sysfs
Export device state to sysfs to allow for easier get device state.

Signed-off-by: Joe Jin <joe.jin@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-08-28 17:37:40 -04:00
Palmer Dabbelt 47d80a68f1
RISC-V: Use a less ugly workaround for unused variable warnings
Thanks to Christoph Hellwig for pointing out a cleaner way to do this,
as my approach was quite ugly.

CC: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-08-28 12:58:36 -07:00
Will Deacon 0ce5671c44
riscv: tlb: Provide definition of tlb_flush() before including tlb.h
As of commit fd1102f0aa ("mm: mmu_notifier fix for tlb_end_vma"),
asm-generic/tlb.h now calls tlb_flush() from a static inline function,
so we need to make sure that it's declared before #including the
asm-generic header in the arch header.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Fixes: fd1102f0aa ("mm: mmu_notifier fix for tlb_end_vma")
Signed-off-by: Will Deacon <will.deacon@arm.com>
[groeck: Use forward declaration instead of moving inline function]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-08-28 12:58:35 -07:00
Palmer Dabbelt 11f65ad111
dt-bindings: riscv,cpu-intc: Cleanups from a missed review
I managed to miss one of Rob's code reviews on the mailing list
<http://lists.infradead.org/pipermail/linux-riscv/2018-August/001139.html>.
The patch has already been merged, so I'm submitting a fixup.

Sorry!

Fixes: b67bc7cb40 ("dt-bindings: interrupt-controller: RISC-V local interrupt controller")
Cc: Rob Herring <robh@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Karsten Merker <merker@debian.org>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-08-28 12:58:35 -07:00
Rodrigo Vivi 1b1b116274 drm/i915: Free write_buf that we allocated with kzalloc.
We use kzalloc to allocate the write_buf that we use for
i2c transfer on hdcp write. But it seems that we are forgetting
to free the memory that is not needed after i2c transfer is
completed.

Reported-by: Brian J Wood <brian.j.wood@intel.com>
Fixes: 2320175feb ("drm/i915: Implement HDCP for HDMI")
Cc: Ramalingam C <ramalingam.c@intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: <stable@vger.kernel.org> # v4.17+
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180823205136.31310-1-rodrigo.vivi@intel.com
(cherry picked from commit 62d3a8deaa)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-08-28 12:50:43 -07:00
Ville Syrjälä 5b2695fd4b drm/i915: Fix glk/cnl display w/a #1175
The workaround was supposed to look at the plane destination
coordinates. Currently it's looking at some mixture of src
and dst coordinates that doesn't make sense. Fix it up.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180719182214.4323-2-ville.syrjala@linux.intel.com
Fixes: 394676f05b (drm/i915: Add WA for planes ending close to left screen edge)
Reviewed-by: Imre Deak <imre.deak@intel.com>
(cherry picked from commit b1f1c2c11f)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-08-28 12:50:37 -07:00
Emily Deng 6ddd9769db drm/amdgpu: Need to set moved to true when evict bo
Fix the VMC page fault when the running sequence is as below:
1.amdgpu_gem_create_ioctl
2.ttm_bo_swapout->amdgpu_vm_bo_invalidate, as not called
amdgpu_vm_bo_base_init, so won't called
list_add_tail(&base->bo_list, &bo->va). Even the bo was evicted,
it won't set the bo_base->moved.
3.drm_gem_open_ioctl->amdgpu_vm_bo_base_init, here only called
list_move_tail(&base->vm_status, &vm->evicted), but not set the
bo_base->moved.
4.amdgpu_vm_bo_map->amdgpu_vm_bo_insert_map, as the bo_base->moved is
not set true, the function amdgpu_vm_bo_insert_map will call
list_move(&bo_va->base.vm_status, &vm->moved)
5.amdgpu_cs_ioctl won't validate the swapout bo, as it is only in the
moved list, not in the evict list. So VMC page fault occurs.

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-28 12:42:48 -05:00
Tony Lindgren 2d59bb6023 ARM: dts: omap4-droid4: Fix emmc errors seen on some devices
Otherwise we can get the following errors occasionally on some devices:

mmc1: tried to HW reset card, got error -110
mmcblk1: error -110 requesting status
mmcblk1: recovery failed!
print_req_error: I/O error, dev mmcblk1, sector 14329
...

I have one device that hits this error almost on every boot, and another
one that hits it only rarely with the other ones I've used behave without
problems. I'm not sure if the issue is related to a particular eMMC card
model, but in case it is, both of the machines with issues have:

# cat /sys/class/mmc_host/mmc1/mmc1:0001/manfid \
/sys/class/mmc_host/mmc1/mmc1:0001/oemid \
/sys/class/mmc_host/mmc1/mmc1:0001/name
0x000045
0x0100
SEM16G

and the working ones have:

0x000011
0x0100
016G92

Note that "ti,non-removable" is different as omap_hsmmc_reg_get() does not
call omap_hsmmc_disable_boot_regulators() if no_regulator_off_init is set.
And currently we set no_regulator_off_init only for "ti,non-removable" and
not for "non-removable". It seems that we should have "non-removable" with
some other mmc generic property behave in the same way instead of having to
use a non-generic property. But let's fix the issue first.

Fixes: 7e2f8c0ae6 ("ARM: dts: Add minimal support for motorola droid 4
xt894")
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Michael Scott <hashcode0f@gmail.com>
Cc: NeKit <nekit1000@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-08-28 09:59:46 -07:00
Tony Lindgren ea4d65f14f Merge branch 'perm-fix' into omap-for-v4.19/fixes-v2 2018-08-28 09:58:03 -07:00
Neeraj Dantu 496f3347d8 ARM: dts: Fix file permission for am335x-osd3358-sm-red.dts
Fix wrong mode for dts file added by commit bb3e3fbbac
("ARM: dts: Add DT support for Octavo Systems OSD3358-SM-RED
based on TI AM335x").

Signed-off-by: Neeraj Dantu <neeraj.dantu@octavosystems.com>
CC: Robert Nelson <robertcnelson@gmail.com>
CC: Jason Kridner <jkridner@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-08-28 09:54:16 -07:00
Chaitanya Kulkarni 04db0e5ec5 nvmet: free workqueue object if module init fails
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-08-28 08:40:44 +02:00
James Smart afd299ca99 nvme-fcloop: Fix dropped LS's to removed target port
When a targetport is removed from the config, fcloop will avoid calling
the LS done() routine thinking the targetport is gone. This leaves the
initiator reset/reconnect hanging as it waits for a status on the
Create_Association LS for the reconnect.

Change the filter in the LS callback path. If tport null (set when
failed validation before "sending to remote port"), be sure to call
done. This was the main bug. But, continue the logic that only calls
done if tport was set but there is no remoteport (e.g. case where
remoteport has been removed, thus host doesn't expect a completion).

Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-08-28 08:40:43 +02:00
Michal Wnukowski f1ed3df20d nvme-pci: add a memory barrier to nvme_dbbuf_update_and_check_event
In many architectures loads may be reordered with older stores to
different locations.  In the nvme driver the following two operations
could be reordered:

 - Write shadow doorbell (dbbuf_db) into memory.
 - Read EventIdx (dbbuf_ei) from memory.

This can result in a potential race condition between driver and VM host
processing requests (if given virtual NVMe controller has a support for
shadow doorbell).  If that occurs, then the NVMe controller may decide to
wait for MMIO doorbell from guest operating system, and guest driver may
decide not to issue MMIO doorbell on any of subsequent commands.

This issue is purely timing-dependent one, so there is no easy way to
reproduce it. Currently the easiest known approach is to run "Oracle IO
Numbers" (orion) that is shipped with Oracle DB:

orion -run advanced -num_large 0 -size_small 8 -type rand -simulate \
	concat -write 40 -duration 120 -matrix row -testname nvme_test

Where nvme_test is a .lun file that contains a list of NVMe block
devices to run test against. Limiting number of vCPUs assigned to given
VM instance seems to increase chances for this bug to occur. On test
environment with VM that got 4 NVMe drives and 1 vCPU assigned the
virtual NVMe controller hang could be observed within 10-20 minutes.
That correspond to about 400-500k IO operations processed (or about
100GB of IO read/writes).

Orion tool was used as a validation and set to run in a loop for 36
hours (equivalent of pushing 550M IO operations). No issues were
observed. That suggest that the patch fixes the issue.

Fixes: f9f38e3338 ("nvme: improve performance for virtual NVMe devices")
Signed-off-by: Michal Wnukowski <wnukowski@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
[hch: updated changelog and comment a bit]
Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-08-28 08:40:42 +02:00
John Pittman db193954ed block: bsg: move atomic_t ref_count variable to refcount API
Currently, variable ref_count within the bsg_device struct is of
type atomic_t.  For variables being used as reference counters,
the refcount API should be used instead of atomic.  The newer
refcount API works to prevent counter overflows and use-after-free
bugs.  So, move this varable from the atomic API to refcount,
potentially avoiding the issues mentioned.

Signed-off-by: John Pittman <jpittman@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-08-27 19:17:02 -06:00
Chengguang Xu 62d2a19407 block: remove unnecessary condition check
kmem_cache_destroy() can handle NULL pointer correctly, so there is
no need to check e->icq_cache before calling kmem_cache_destroy().

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-08-27 19:16:06 -06:00
Linus Walleij 46cb52ad41 ata: ftide010: Add a quirk for SQ201
The DMA is broken on this specific device for some unknown
reason (probably badly designed or plain broken interface
electronics) and will only work with PIO. Other users of
the same hardware does not have this problem.

Add a specific quirk so that this Gemini device gets
DMA turned off. Also fix up some code around passing the
port information around in probe while we're at it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-08-27 14:25:54 -06:00
Rex Zhu 2f4e7db0f7 drm/amdgpu: Remove duplicated power source update
when ac/dc switch, driver will be notified by acpi event.
then the power source will be updated. so don't need to
get power source when set power state.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27 14:55:00 -05:00
SivapiriyanKumarasamy e7603dadd3 drm/amd/display: Fix memory leak caused by missed dc_sink_release
[Why]
There is currently an intermittent hang from a memory leak in
DTN stress testing. It is caused by unfreed memory during driver
disable.

[How]
Do a dc_sink_release in the case that skips it incorrectly.

Signed-off-by: SivapiriyanKumarasamy <sivapiriyan.kumarasamy@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27 14:53:37 -05:00
Christian König 4a2de54dc1 drm/amdgpu: fix holding mn_lock while allocating memory
We can't hold the mn_lock while allocating memory.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27 14:50:56 -05:00
Rex Zhu 72ef23de20 drm/amdgpu: Power on uvd block when hw_fini
when hw_fini/suspend, smu only need to power on uvd block
if uvd pg is supported, don't need to call uvd to do hw_init.

v2: fix typo in patch descriptions and comments.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27 14:49:48 -05:00
Rex Zhu 2ab4d0e742 drm/amdgpu: Update power state at the end of smu hw_init.
For SI/Kv, the power state is managed by function
amdgpu_pm_compute_clocks.

when dpm enabled, we should call amdgpu_pm_compute_clocks
to update current power state instand of set boot state.

this change can fix the oops when kfd driver was enabled on Kv.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27 14:49:33 -05:00