Pull drm fixes from Dave Airlie:
 "While I hoped things would calm down, the world hasn't joined with me,
  but it's a few things scattered over a wide area. The i915 workarounds
  regression fix is probably the largest, the rest are more usual sized.
  We also get some new AMD PCI IDs.

  There is also a patch in here to MAINTAINERS to added Daniel as an
  official DRM toplevel co-maintainer, he's decided he wants to step up
  and share the glory, and he'll likely process next weeks fixes while
  I'm away on holidays.

  Summary:

  amdgpu:

   - some new PCI IDs

   - fixed firmware image updates

   - power management fixes

   - locking warning fix

  nouveau:

   - framebuffer flushing fix

   - memory leak fix

   - tegra device init regression fix

  vmwgfx:

   - OOM kernel memory fix

   - excess return in function fix

  i915:

   - the biggest fix is a regression fix where workarounds weren't
     getting reapplied after a gpu hang causing further crashing, this
     fixes the workaround application to make it happen again

   - GPU hang fixes for Braswell and some GEN3 GPUs

   - GVT fix for broadwell tiling

  rockchip:

   - revert to fix a regression causing a WARN on shutdown

  mediatek:

   - avoid crash attaching to non-existant bridges"

* tag 'drm-fixes-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (23 commits)
  drm/vmwgfx: Protect from excessive execbuf kernel memory allocations v3
  MAINTAINERS: Daniel for drm co-maintainer
  drm/amdgpu: drop fclk/gfxclk ratio setting
  drm/vmwgfx: remove redundant return ret statement
  drm/i915: Flush GPU relocs harder for gen3
  drm/i915: Allocate a common scratch page
  drm/i915/execlists: Apply a full mb before execution for Braswell
  drm/nouveau/kms: Fix memory leak in nv50_mstm_del()
  drm/nouveau/kms/nv50-: also flush fb writes when rewinding push buffer
  drm/amdgpu: Fix DEBUG_LOCKS_WARN_ON(depth <= 0) in amdgpu_ctx.lock
  Revert "drm/rockchip: Allow driver to be shutdown on reboot/kexec"
  drm/nouveau/drm/nouveau: tegra: Call nouveau_drm_device_init()
  drm/amdgpu/powerplay: Apply avfs cks-off voltages on VI
  drm/amdgpu: update SMC firmware image for polaris10 variants
  drm/amdkfd: add new vega20 pci id
  drm/amdkfd: add new vega10 pci ids
  drm/amdgpu: add some additional vega20 pci ids
  drm/amdgpu: add some additional vega10 pci ids
  drm/amdgpu: update smu firmware images for VI variants (v2)
  drm/i915: Introduce per-engine workarounds
  ...

Pull XArray fixes from Matthew Wilcox:
 "Two bugfixes, each with test-suite updates, two improvements to the
  test-suite without associated bugs, and one patch adding a missing
  API"

* tag 'xarray-4.20-rc7' of git://git.infradead.org/users/willy/linux-dax:
  XArray: Fix xa_alloc when id exceeds max
  XArray tests: Check iterating over multiorder entries
  XArray tests: Handle larger indices more elegantly
  XArray: Add xa_cmpxchg_irq and xa_cmpxchg_bh
  radix tree: Don't return retry entries from lookup

Merge tag 'linux-kselftest-4.20-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest fix from Shuah Khan:
 "A single fix for a seccomp test from Kees Cook."

* tag 'linux-kselftest-4.20-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/seccomp: Remove SIGSTOP si_pid check

Pull thermal fixes from Eduardo Valentin:
 "Fixes for STM and HISI thermal drivers"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: stm32: Fix stm_thermal_read_factory_settings
  thermal: stm32: read factory settings inside stm_thermal_prepare
  thermal/drivers/hisi: Fix number of sensors on hi3660
  thermal/drivers/hisi: Fix wrong platform_get_irq_byname()

One regression fix for avoiding kernel OOM, one cleanup return fix.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <thellstrom@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181213122815.10581-1-thellstrom@vmware.com

Specifying a starting ID greater than the maximum ID isn't something
attempted very often, but it should fail.  It was succeeding due to
xas_find_marked() returning the wrong error state, so add tests for
both xa_alloc() and xas_find_marked().

Fixes: b803b428 ("xarray: Add XArray iterators")
Signed-off-by: Matthew Wilcox <willy@infradead.org>

Pull rdma fixes from Doug Ledford:
 "We have 5 small fixes for this pull request. One is a performance
  regression, so not necessarily strictly a fix, but it was small and
  reasonable and claimed to avoid thrashing in the scheduler, so I took
  it. The remaining are all legitimate fixes that match the "we take
  fixes any time" criteria.

  Summary:

   - One performance regression for hfi1

   - One kasan fix for hfi1

   - A couple mlx5 fixes

   - A core oops fix"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  IB/core: Fix oops in netdev_next_upper_dev_rcu()
  IB/mlx5: Block DEVX umem from the non applicable cases
  IB/mlx5: Fix implicit ODP interrupted page fault
  IB/hfi1: Fix an out-of-bounds access in get_hw_stats
  IB/hfi1: Fix a latency issue for small messages

Pull mmc fixes from Ulf Hansson:
 "MMC core:
   - Fixup RPMB requests to use mrq->sbc when sending CMD23

  MMC host:
   - omap: Fix broken MMC/SD on OMAP15XX/OMAP5910/OMAP310

   - sdhci-omap: Fix DCRC error handling during tuning

   - sdhci: Fixup the timeout check window for clock and reset"

* tag 'mmc-v4.20-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci: fix the timeout check window for clock and reset
  mmc: sdhci-omap: Fix DCRC error handling during tuning
  MMC: OMAP: fix broken MMC on OMAP15XX/OMAP5910/OMAP310
  mmc: core: use mrq->sbc when sending CMD23 for RPMB

Pull sound fixes from Takashi Iwai:
 "Only usual suspects here: a few more fixups for Realtek HD-audio on
  various PCs, including a regression fix in the previous fix for Lenovo
  X1 Carbon, as well as a typo fix in the recent Fireface patch"

* tag 'sound-4.20-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek: Enable audio jacks of ASUS UX433FN/UX333FA with ALC294
  ALSA: hda/realtek: Enable audio jacks of ASUS UX533FD with ALC294
  ALSA: hda/realtek: ALC294 mic and headset-mode fixups for ASUS X542UN
  ALSA: fireface: fix reference to wrong register for clock configuration
  ALSA: hda/realtek - Fix the mute LED regresion on Lenovo X1 Carbon
  ALSA: hda/realtek - Fixed headphone issue for ALC700

With the new validation code, a malicious user-space app could
potentially submit command streams with enough buffer-object and resource
references in them to have the resulting allocated validion nodes and
relocations make the kernel run out of GFP_KERNEL memory.

Protect from this by having the validation code reserve TTM graphics
memory when allocating.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Deepak Rawat <drawat@vmware.com>
---
v2: Removed leftover debug printouts

Merge tag 'for-4.20/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - Fix DM cache metadata to verify that a cache has block before trying
   to continue with operation that requires them.

 - Fix bio-based DM core's dm_make_request() to properly impose device
   limits on individual bios by making use of blk_queue_split().

 - Fix long-standing race with how DM thinp notified userspace of
   thin-pool mode state changes before they were actually made.

 - Fix the zoned target's bio completion handling; this is a fairly
   invassive fix at this stage but it is localized to the zoned target.
   Any zoned target users will benefit from this fix.

* tag 'for-4.20/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm thin: bump target version
  dm thin: send event about thin-pool state change _after_ making it
  dm zoned: Fix target BIO completion handling
  dm: call blk_queue_split() to impose device limits on bios
  dm cache metadata: verify cache has blocks in blocks_are_clean_separate_dirty()

Pull media fixes from Mauro Carvalho Chehab:

 - one regression at vsp1 driver

 - some last time changes for the upcoming request API logic and for
   stateless codec support. As the stateless codec "cedrus" driver is at
   staging, don't apply the MPEG controls as part of the main V4L2 API,
   as those may not be ready for production yet.

* tag 'media/v4.20-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: Add a Kconfig option for the Request API
  media: extended-controls.rst: add note to the MPEG2 state controls
  media: mpeg2-ctrls.h: move MPEG2 state controls to non-public header
  media: vicodec: set state resolution from raw format
  media: vivid: drop v4l2_ctrl_request_complete() from start_streaming
  media: vb2: don't unbind/put the object when going to state QUEUED
  media: vb2: keep a reference to the request until dqbuf
  media: vb2: skip request checks for VIDIOC_PREPARE_BUF
  media: vb2: don't call __vb2_queue_cancel if vb2_start_streaming failed
  media: cedrus: Fix a NULL vs IS_ERR() check
  media: vsp1: Fix LIF buffer thresholds

Pull overlayfs fixes from Miklos Szeredi:
 "Needed to revert a patch, because it possibly introduces a security
  hole. Since the patch is basically a conceptual cleanup, not a bug
  fix, it's safe to revert. I'm not giving up on this, and discussions
  seemed to have reached an agreement over how to move forward, but that
  can wait 'till the next release.

  The other two patches are fixes for bugs introduced in recent
  releases"

* tag 'ovl-fixes-4.20-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  Revert "ovl: relax permission checking on underlying layers"
  ovl: fix decode of dir file handle with multi lower layers
  ovl: fix missing override creds in link of a metacopy upper

Pull fuse fixes from Miklos Szeredi:
 "There's one patch fixing a minor but long lived bug, the others are
  fixing regressions introduced in this cycle"

* tag 'fuse-fixes-4.20-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: continue to send FUSE_RELEASEDIR when FUSE_OPEN returns ENOSYS
  fuse: Fix memory leak in fuse_dev_free()
  fuse: fix revalidation of attributes for permission check
  fuse: fix fsync on directory
  fuse: Add bad inode check in fuse_destroy_inode()

Pull tracing fixes from Steven Rostedt:
 "While running various ftrace tests on new development code, the
  kmemleak detector found some allocations that were not freed
  correctly.

  This fixes a couple of leaks in the event trigger code as well as in
  adding function trace filters in trace instances"

* tag 'trace-v4.20-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix memory leak of instance function hash filters
  tracing: Fix memory leak in set_trigger_filter()
  tracing: Fix memory leak in create_filter()

Merge branch 'mediatek-drm-fixes-4.20' of https://github.com/ckhu-mediatek/linux.git-tags into drm-fixes

Single bridge attachment fix.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1544407975.18825.3.camel@mtksdaap41

lkml and Linus gained a CoC, and it's serious this time. Which means
my no 1 reason for declining to officially step up as drm maintainer
is gone, and I didn't find any new good excuse.

I chatted with a few people in private already, and the biggest
concern is that I mislay my community hat and start running around
with my intel hat only. Or some other convenient abuse of trust.

That's why this patch doesn't just need a lot of acks that mean "yeah
seems fine to me", but a lot of acks that mean "yeah we'll tell you
when you're over the line and usurp you from that comfy chair if you
don't get it". Which I think we've been done a fairly good job here at
dri-devel in general, but better to be clear.

Rough idea is that I'll do this for maybe 2-3 years, helping Dave
figure out a group model for drm overall. And getting the tooling and
infrastructure for that off the ground. Then step down again because
some other shiny thing that needs chasing. Of course as plans tend to
do, this one will probably pan out a bit different in reality.

Cc: David Airlie <airlied@linux.ie>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Sean Paul <sean@poorly.run>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181210103001.30549-1-daniel.vetter@ffwll.ch

Three fixes:
tegra regression fix
display flushing fix
mst cleanup fix.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv7WCPzjQZonk+eS1FgEUKirz-4LOrVpMUVMM=D-GjbVpg@mail.gmail.com

Fixes for 4.20:
- Stability fixes for new polaris variants (e.g., RX590)
- New vega pci ids
- Vega20 smu fix
- Ctx locking fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181212203022.3054-1-alexander.deucher@amd.com

- rockchip: Revert change causing WARN on shutdown (Brian)

Cc: Brian Norris <briannorris@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20181212204309.GA150523@art_vandelay

Merge tag 'drm-intel-fixes-2018-12-12-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Two fixes to avoid GPU hangs (on Braswell and Gen3)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181212134010.GA18900@jlahtine-desk.ger.corp.intel.com

Merge tag 'drm-intel-fixes-2018-12-07' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix for system crash after GPU hang (Bugzilla #107945)
- GVT fix for guest graphics corruption (https://github.com/intel/gvt-linux/issues/61)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207104352.GA18214@jlahtine-desk.ger.corp.intel.com

Since this is not needed any more on the latest SMC firmware.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

When support for bonding of RoCE devices was added, there was
necessarily a link between the RoCE device and the paired netdevice that
was part of the bond.  If you remove the mlx4_en module, that paired
association is broken (the RoCE device is still present but the paired
netdevice has been released).  We need to account for this in
is_upper_ndev_bond_master_filter() and filter out those links with a
broken pairing or else we later oops in netdev_next_upper_dev_rcu().

Fixes: 408f1242 ("IB/core: Delete lower netdevice default GID entries in bonding scenario")
Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

Decoupled version bump from commit f6c36758 ("dm thin: send event
about thin-pool state change _after_ making it") because version bumps
just create conflicts when backporting to the stable trees.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

The return statement is redundant as there is a return statement
immediately before it so we have dead code that can be removed.
Also remove the unused declaration of ret.

Detected by CoverityScan, CID#1473793 ("Structurally dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>

Adding an extra MI_STORE_DWORD_IMM to the gpu relocation path for gen3
was good, but still not good enough. To survive 24+ hours under test we
needed to perform not one, not two but three extra store-dw. Doing so
for each GPU relocation was a little unsightly and since we need to
worry about userspace hitting the same issues, we should apply the dummy
store-dw into the EMIT_FLUSH.

Fixes: 7dd4f672 ("drm/i915: Async GPU relocation processing")
References: 7fa28e14 ("drm/i915: Write GPU relocs harder with gen3")
Testcase: igt/gem_tiled_fence_blits # blb/pnv
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207134037.11848-1-chris@chris-wilson.co.uk
(cherry picked from commit a889580c)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Currently we allocate a scratch page for each engine, but since we only
ever write into it for post-sync operations, it is not exposed to
userspace nor do we care for coherency. As we then do not care about its
contents, we can use one page for all, reducing our allocations and
avoid complications by not assuming per-engine isolation.

For later use, it simplifies engine initialisation (by removing the
allocation that required struct_mutex!) and means that we can always rely
on there being a scratch page.

v2: Check that we allocated a large enough scratch for I830 w/a

Fixes: 06e562e7f515 ("drm/i915/ringbuffer: Delay after EMIT_INVALIDATE for gen4/gen5") # v4.18.20
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108850Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204141522.13640-1-chris@chris-wilson.co.uk
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.18.20+
(cherry picked from commit 51797499)
[Joonas: Use new function in gen9_init_indirectctx_bb too]
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Braswell is really picky about having our writes posted to memory before
we execute or else the GPU may see stale values. A wmb() is insufficient
as it only ensures the writes are visible to other cores, we need a full
mb() to ensure the writes are in memory and visible to the GPU.

The most frequent failure in flushing before execution is that we see
stale PTE values and execute the wrong pages.

References: 987abd5c ("drm/i915/execlists: Force write serialisation into context image vs execution")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181206084431.9805-3-chris@chris-wilson.co.uk
(cherry picked from commit 490b8c65)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Noticed this while working on redoing the reference counting scheme in
the DP MST helpers. Nouveau doesn't attempt to call
drm_dp_mst_topology_mgr_destroy() at all, which leaves it leaking all of
the resources for drm_dp_mst_topology_mgr and it's children mstbs+ports.

Fixes: f479c0ba ("drm/nouveau/kms/nv50: initial support for DP 1.2 multi-stream")
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Should hopefully fix a regression some people have been seeing since EVO
push buffers were moved to VRAM by default on Pascal GPUs.

Fixes: d00ddd9d ("drm/nouveau/kms/nv50-: allocate push buffers in vidmem on pascal")
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: <stable@vger.kernel.org> # 4.19+

Commit f149b315 ("signal: Never allocate siginfo for SIGKILL or SIGSTOP")
means that the seccomp selftest cannot check si_pid under SIGSTOP anymore.
Since it's believed[1] there are no other userspace things depending on the
old behavior, this removes the behavioral check in the selftest, since it's
more a "extra" sanity check (which turns out, maybe, not to have been
useful to test).

[1] https://lkml.kernel.org/r/CAGXu5jJaZAOzP1qFz66tYrtbuywqb+UN2SOA1VLHpCCOiYvYeg@mail.gmail.comReported-by: Tycho Andersen <tycho@tycho.ws>
Suggested-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <shuah@kernel.org>

When FUSE_OPEN returns ENOSYS, the no_open bit is set on the connection.

Because the FUSE_RELEASE and FUSE_RELEASEDIR paths share code, this
incorrectly caused the FUSE_RELEASEDIR request to be dropped and never sent
to userspace.

Pass an isdir bool to distinguish between FUSE_RELEASE and FUSE_RELEASEDIR
inside of fuse_file_put.

Fixes: 7678ac50 ("fuse: support clients that don't implement 'open'")
Cc: <stable@vger.kernel.org> # v3.14
Signed-off-by: Chad Austin <chadaustin@fb.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

Sending a DM event before a thin-pool state change is about to happen is
a bug.  It wasn't realized until it became clear that userspace response
to the event raced with the actual state change that the event was
meant to notify about.

Fix this by first updating internal thin-pool state to reflect what the
DM event is being issued about.  This fixes a long-standing racey/buggy
userspace device-mapper-test-suite 'resize_io' test that would get an
event but not find the state it was looking for -- so it would just go
on to hang because no other events caused the test to reevaluate the
thin-pool's state.

Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

The following commands will cause a memory leak:

 # cd /sys/kernel/tracing
 # mkdir instances/foo
 # echo schedule > instance/foo/set_ftrace_filter
 # rmdir instances/foo

The reason is that the hashes that hold the filters to set_ftrace_filter and
set_ftrace_notrace are not freed if they contain any data on the instance
and the instance is removed.

Found by kmemleak detector.

Cc: stable@vger.kernel.org
Fixes: 591dffda ("ftrace: Allow for function tracing instance to filter functions")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

When create_event_filter() fails in set_trigger_filter(), the filter may
still be allocated and needs to be freed. The caller expects the
data->filter to be updated with the new filter, even if the new filter
failed (we could add an error message by setting set_str parameter of
create_event_filter(), but that's another update).

But because the error would just exit, filter was left hanging and
nothing could free it.

Found by kmemleak detector.

Cc: stable@vger.kernel.org
Fixes: bac5fb97 ("tracing: Add and use generic set_trigger_filter() implementation")
Reviewed-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

The create_filter() calls create_filter_start() which allocates a
"parse_error" descriptor, but fails to call create_filter_finish() that
frees it.

The op_stack and inverts in predicate_parse() were also not freed.

Found by kmemleak detector.

Cc: stable@vger.kernel.org
Fixes: 80765597 ("tracing: Rewrite filter logic to be simpler and faster")
Reviewed-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

If CS is submitted using guilty ctx, we terminate amdgpu_cs_parser_init
before locking ctx->lock, latter in amdgpu_cs_parser_fini we still are
trying to release the lock just becase parser->ctx != NULL.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

This reverts commit 7f3ef5de.

It causes new warnings [1] on shutdown when running the Google Kevin or
Scarlet (RK3399) boards under Chrome OS. Presumably our usage of DRM is
different than what Marc and Heiko test.

We're looking at a different approach (e.g., [2]) to replace this, but
IMO the revert should be taken first, as it already propagated to
-stable.

[1] Report here:
http://lkml.kernel.org/lkml/20181205030127.GA200921@google.com

WARNING: CPU: 4 PID: 2035 at drivers/gpu/drm/drm_mode_config.c:477 drm_mode_config_cleanup+0x1c4/0x294
...
 Call trace:
  drm_mode_config_cleanup+0x1c4/0x294
  rockchip_drm_unbind+0x4c/0x8c
  component_master_del+0x88/0xb8
  rockchip_drm_platform_remove+0x2c/0x44
  rockchip_drm_platform_shutdown+0x20/0x2c
  platform_drv_shutdown+0x2c/0x38
  device_shutdown+0x164/0x1b8
  kernel_restart_prepare+0x40/0x48
  kernel_restart+0x20/0x68
...
 Memory manager not clean during takedown.
 WARNING: CPU: 4 PID: 2035 at drivers/gpu/drm/drm_mm.c:950 drm_mm_takedown+0x34/0x44
...
  drm_mm_takedown+0x34/0x44
  rockchip_drm_unbind+0x64/0x8c
  component_master_del+0x88/0xb8
  rockchip_drm_platform_remove+0x2c/0x44
  rockchip_drm_platform_shutdown+0x20/0x2c
  platform_drv_shutdown+0x2c/0x38
  device_shutdown+0x164/0x1b8
  kernel_restart_prepare+0x40/0x48
  kernel_restart+0x20/0x68
...

[2] https://patchwork.kernel.org/patch/10556151/
    https://www.spinics.net/lists/linux-rockchip/msg21342.html
    [PATCH] drm/rockchip: shutdown drm subsystem on shutdown

Fixes: 7f3ef5de ("drm/rockchip: Allow driver to be shutdown on reboot/kexec")
Cc: Jeffy Chen <jeffy.chen@rock-chips.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Vicente Bergas <vicencb@gmail.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: stable@vger.kernel.org
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20181205181657.177703-1-briannorris@chromium.org

As part of commit cfea88a4 ("drm/nouveau: Start using new drm_dev
initialization helpers"), the initialization of the Nouveau DRM device
was reworked and along the way the platform driver initialization was
left incomplete. Add a call to nouveau_drm_device_init() to make sure
all of the structures are properly initialized.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>