openwrt/staging/blogic.git
5 years agoMerge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 28 Jul 2019 03:49:43 +0000 (20:49 -0700)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull objtool fix from Thomas Gleixner:
 "A single robustness fix for objtool to handle unbalanced CLAC
  invocations under all circumstances"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Improve UACCESS coverage

5 years agoMerge tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Sat, 27 Jul 2019 18:04:18 +0000 (11:04 -0700)]
Merge tag 'Wimplicit-fallthrough-5.3-rc2' of git://git./linux/kernel/git/gustavoars/linux

Pull Wimplicit-fallthrough enablement from Gustavo A. R. Silva:
 "This marks switch cases where we are expecting to fall through, and
  globally enables the -Wimplicit-fallthrough option in the main
  Makefile.

  Finally, some missing-break fixes that have been tagged for -stable:

   - drm/amdkfd: Fix missing break in switch statement

   - drm/amdgpu/gfx10: Fix missing break in switch statement

  With these changes, we completely get rid of all the fall-through
  warnings in the kernel"

* tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  Makefile: Globally enable fall-through warning
  drm/i915: Mark expected switch fall-throughs
  drm/amd/display: Mark expected switch fall-throughs
  drm/amdkfd/kfd_mqd_manager_v10: Avoid fall-through warning
  drm/amdgpu/gfx10: Fix missing break in switch statement
  drm/amdkfd: Fix missing break in switch statement
  perf/x86/intel: Mark expected switch fall-throughs
  mtd: onenand_base: Mark expected switch fall-through
  afs: fsclient: Mark expected switch fall-throughs
  afs: yfsclient: Mark expected switch fall-throughs
  can: mark expected switch fall-throughs
  firewire: mark expected switch fall-throughs

5 years agoMerge tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Sat, 27 Jul 2019 15:58:04 +0000 (08:58 -0700)]
Merge tag 's390-5.3-3' of git://git./linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Add ABI to kernel image file which allows e.g. the file utility to
   figure out the kernel version.

 - Wire up clone3 system call.

 - Add support for kasan bitops instrumentation.

 - uapi header cleanup: use __u{16,32,64} instead of uint{16,32,64}_t.

 - Provide proper ARCH_ZONE_DMA_BITS so the s390 DMA zone is correctly
   defined with 2 GB instead of the default value of 1 MB.

 - Farhan Ali leaves the group of vfio-ccw maintainers.

 - Various small vfio-ccw fixes.

 - Add missing locking for airq_areas array in virtio code.

 - Minor qdio improvements.

* tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  MAINTAINERS: vfio-ccw: Remove myself as the maintainer
  s390/mm: use shared variables for sysctl range check
  virtio/s390: fix race on airq_areas[]
  s390/dma: provide proper ARCH_ZONE_DMA_BITS value
  s390/kasan: add bitops instrumentation
  s390/bitops: make test functions return bool
  s390: wire up clone3 system call
  kbuild: enable arch/s390/include/uapi/asm/zcrypt.h for uapi header test
  s390: use __u{16,32,64} instead of uint{16,32,64}_t in uapi header
  s390/hypfs: fix a typo in the name of a function
  s390/qdio: restrict QAOB usage to IQD unicast queues
  s390/qdio: add sanity checks to the fast-requeue path
  s390: enable detection of kernel version from bzImage
  Documentation: fix vfio-ccw doc
  vfio-ccw: Update documentation for csch/hsch
  vfio-ccw: Don't call cp_free if we are processing a channel program
  vfio-ccw: Set pa_nr to 0 if memory allocation fails for pa_iova_pfn
  vfio-ccw: Fix memory leak and don't call cp_free in cp_init
  vfio-ccw: Fix misleading comment when setting orb.cmd.c64

5 years agoMerge tag 'devicetree-fixes-for-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 27 Jul 2019 15:49:19 +0000 (08:49 -0700)]
Merge tag 'devicetree-fixes-for-5.3-2' of git://git./linux/kernel/git/robh/linux

Pull Devicetree fixes from Rob Herring:
 "The nvmem changes would typically go thru Greg's tree, but they were
  missed in the merge window. [ Acked by Greg ]

  Summary:

   - Fix mismatches in $id values and actual filenames. Now checked by
     tools.

   - Convert nvmem binding to DT schema

   - Fix a typo in of_property_read_bool() kerneldoc

   - Remove some redundant description in al-fic interrupt-controller"

* tag 'devicetree-fixes-for-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: Fix more $id value mismatches filenames
  dt-bindings: nvmem: SID: Fix the examples node names
  dt-bindings: nvmem: Add YAML schemas for the generic NVMEM bindings
  of: Fix typo in kerneldoc
  dt-bindings: interrupt-controller: al-fic: remove redundant binding
  dt-bindings: clk: allwinner,sun4i-a10-ccu: Correct path in $id

5 years agoMerge tag 'libnvdimm-fixes-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 27 Jul 2019 15:25:51 +0000 (08:25 -0700)]
Merge tag 'libnvdimm-fixes-5.3-rc2' of git://git./linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm fixes from Dan Williams:
 "A collection of locking and async operations fixes for v5.3-rc2. These
  had been soaking in a branch targeting the merge window, but missed
  due to a regression hunt. This fixed up version has otherwise been in
  -next this past week with no reported issues.

  In order to gain confidence in the locking changes the pull also
  includes a debug / instrumentation patch to enable lockdep coverage
  for libnvdimm subsystem operations that depend on the device_lock for
  exclusion. As mentioned in the changelog it is a hack, but it works
  and documents the locking expectations of the sub-system in a way that
  others can use lockdep to verify. The driver core touches got an ack
  from Greg.

  Summary:

   - Fix duplicate device_unregister() calls (multiple threads competing
     to do unregister work when scheduling device removal from a sysfs
     attribute of the self-same device).

   - Fix badblocks registration order bug. Ensure region badblocks are
     initialized in advance of namespace registration.

   - Fix a deadlock between the bus lock and probe operations.

   - Export device-core infrastructure to coordinate async operations
     via the device ->dead state.

   - Add device-core infrastructure to validate device_lock() usage with
     lockdep"

* tag 'libnvdimm-fixes-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  driver-core, libnvdimm: Let device subsystems add local lockdep coverage
  libnvdimm/bus: Fix wait_nvdimm_bus_probe_idle() ABBA deadlock
  libnvdimm/bus: Stop holding nvdimm_bus_list_mutex over __nd_ioctl()
  libnvdimm/bus: Prepare the nd_ioctl() path to be re-entrant
  libnvdimm/region: Register badblocks before namespaces
  libnvdimm/bus: Prevent duplicate device_unregister() calls
  drivers/base: Introduce kill_device()

5 years agoMerge tag 'for-linus-20190726-2' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 27 Jul 2019 02:20:34 +0000 (19:20 -0700)]
Merge tag 'for-linus-20190726-2' of git://git.kernel.dk/linux-block

Pull block DMA segment fix from Jens Axboe:
 "Here's the virtual boundary segment size fix"

* tag 'for-linus-20190726-2' of git://git.kernel.dk/linux-block:
  block: fix max segment size handling in blk_queue_virt_boundary

5 years agoMerge tag 'selinux-pr-20190726' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 27 Jul 2019 02:13:38 +0000 (19:13 -0700)]
Merge tag 'selinux-pr-20190726' of git://git./linux/kernel/git/pcmoore/selinux

Pull selinux fix from Paul Moore:
 "One small SELinux patch to add some proper bounds/overflow checking
  when adding a new sid/secid"

* tag 'selinux-pr-20190726' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: check sidtab limit before adding a new entry

5 years agodt-bindings: Fix more $id value mismatches filenames
Rob Herring [Fri, 26 Jul 2019 23:36:52 +0000 (17:36 -0600)]
dt-bindings: Fix more $id value mismatches filenames

The path in the schema '$id' values are wrong. Fix them.

Signed-off-by: Rob Herring <robh@kernel.org>
5 years agodt-bindings: nvmem: SID: Fix the examples node names
Maxime Ripard [Wed, 3 Jul 2019 09:54:21 +0000 (11:54 +0200)]
dt-bindings: nvmem: SID: Fix the examples node names

Now that the examples are validated, the examples in the SID binding
generates an error since the node names aren't one of the valid ones.

Let's switch for one that is ok.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
5 years agodt-bindings: nvmem: Add YAML schemas for the generic NVMEM bindings
Maxime Ripard [Thu, 27 Jun 2019 15:10:37 +0000 (16:10 +0100)]
dt-bindings: nvmem: Add YAML schemas for the generic NVMEM bindings

The nvmem providers and consumers have a bunch of generic properties that
are needed in a device tree. Add a YAML schemas for those.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[Srini: Changed licence to (GPL-2.0 OR BSD-2-Clause)]
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
5 years agoof: Fix typo in kerneldoc
Thierry Reding [Fri, 26 Jul 2019 10:17:44 +0000 (12:17 +0200)]
of: Fix typo in kerneldoc

"Findfrom" is not a word. Replace the function synopsis by something
that makes sense.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <robh@kernel.org>
5 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Fri, 26 Jul 2019 21:20:28 +0000 (14:20 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Nine fixes: The most important core one is the dma_max_mapping_size
  fix that corrects the boot problem Gunter Roeck was having. A couple
  of other driver only fixes are significant, like the cxgbi selector
  support addition, the alua 2 second delay and the fdomain build fix"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: scsi_dh_alua: always use a 2 second delay before retrying RTPG
  scsi: ibmvfc: fix WARN_ON during event pool release
  scsi: fcoe: fix a typo
  scsi: megaraid_sas: Make some functions static
  scsi: megaraid_sas: fix panic on loading firmware crashdump
  scsi: megaraid_sas: fix spelling mistake "megarid_sas" -> "megaraid_sas"
  scsi: core: fix the dma_max_mapping_size call
  scsi: fdomain: fix building pcmcia front-end
  scsi: target: cxgbit: add support for IEEE_8021QAZ_APP_SEL_STREAM selector

5 years agoMerge tag 'drm-fixes-2019-07-26' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 26 Jul 2019 21:12:54 +0000 (14:12 -0700)]
Merge tag 'drm-fixes-2019-07-26' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Daniel Vetter:
 "Dave seems to collect an entire streak of things happening, so again
  me typing pull summary.

  Nothing nefarious here, most of the fixes are for new stuff or things
  users won't see. The amd-display patches are a bit different, and very
  much look like they should have at least some cc: stable tags. Might
  be amd is a bit too comfortable with their internal tree and not
  enough looking at upstream. Dave&me are looking into this, in case
  something needs rectified with process here.

  Also no intel fixes pull, but intel CI is general become rather good,
  still I guess expect a notch more for -rc3.

  Summary:

  amdgpu:
   - fixes for (new in 5.3) hw support (vega20, navi)
   - disable RAS
   - lots of display fixes all over (audio, DSC, dongle, clock mgr)

  ttm:
   - fix dma_free_attrs calls to appease dma debugging

  msm:
   - fixes for dma-api, locking debug and compiler splats

  core:
   - fix cmdline mode to not apply rotation if not specified (new in 5.3)
   - compiler warn fix"

* tag 'drm-fixes-2019-07-26' of git://anongit.freedesktop.org/drm/drm: (46 commits)
  drm/amd/display: Set enabled to false at start of audio disable
  drm/amdgpu/smu: move fan rpm query into the asic specific code
  drm/amd/powerplay: custom peak clock freq for navi10
  drm: silence variable 'conn' set but not used
  drm/msm: stop abusing dma_map/unmap for cache
  drm/msm/dpu: Correct dpu encoder spinlock initialization
  drm/msm: correct NULL pointer dereference in context_init
  drm/amd/display: handle active dongle port type is DP++ or DP case
  drm/amd/display: do not read link setting if edp not connected
  drm/amd/display: Increase size of audios array
  drm/amd/display: drop ASSERT() if eDP panel is not connected
  drm/amd/display: Only enable audio if speaker allocation exists
  drm/amd/display: Fix dc_create failure handling and 666 color depths
  drm/amd/display: allocate 4 ddc engines for RV2
  drm/amd/display: put back front end initialization sequence
  drm/amd/display: Wait for flip to complete
  drm/amd/display: Change min_h_sync_width from 8 to 4
  drm/amd/display: use encoder's engine id to find matched free audio device
  drm/amd/display: fix DMCU hang when going into Modern Standby
  drm/amd/display: Disable Audio on reinitialize hardware
  ...

5 years agoblock: fix max segment size handling in blk_queue_virt_boundary
Christoph Hellwig [Wed, 24 Jul 2019 16:26:56 +0000 (18:26 +0200)]
block: fix max segment size handling in blk_queue_virt_boundary

We should only set the max segment size to unlimited if we actually
have a virt boundary.  Otherwise we accidentally clear that limit
when called from the SCSI midlayer, which always calls
blk_queue_virt_boundary, even if that mask is 0.

Fixes: 7ad388d8e4c7 ("scsi: core: add a host / host template field for the virt boundary")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
5 years agoMerge tag 'docs-5.3-1' of git://git.lwn.net/linux
Linus Torvalds [Fri, 26 Jul 2019 18:29:24 +0000 (11:29 -0700)]
Merge tag 'docs-5.3-1' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "This is mostly a set of follow-on fixes from Mauro fixing various
  fallout from the massive RST conversion; a few other small fixes as
  well"

* tag 'docs-5.3-1' of git://git.lwn.net/linux: (21 commits)
  docs: phy: Drop duplicate 'be made'
  doc:it_IT: translations in process/
  docs/vm: transhuge: fix typo in madvise reference
  doc:it_IT: rephrase statement
  doc:it_IT: align translation to mainline
  docs: load_config.py: ensure subdirs end with "/"
  docs: virtual: add it to the documentation body
  docs: remove extra conf.py files
  docs: load_config.py: avoid needing a conf.py just due to LaTeX docs
  scripts/sphinx-pre-install: seek for Noto CJK fonts for pdf output
  scripts/sphinx-pre-install: cleanup Gentoo checks
  scripts/sphinx-pre-install: fix latexmk dependencies
  scripts/sphinx-pre-install: don't use LaTeX with CentOS 7
  scripts/sphinx-pre-install: fix script for RHEL/CentOS
  docs: conf.py: only use CJK if the font is available
  docs: conf.py: add CJK package needed by translations
  docs: pdf: add all Documentation/*/index.rst to PDF output
  docs: fix broken doc references due to renames
  docs: power: add it to to the main documentation index
  docs: powerpc: convert docs to ReST and rename to *.rst
  ...

5 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 26 Jul 2019 18:20:42 +0000 (11:20 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "There's more here than we usually have at this stage, but that's
  mainly down to the stacktrace changes which came in slightly too late
  for the merge window.

  Summary:

   - Big bad batch of MAINTAINERS updates

   - Fix handling of SP alignment fault exceptions

   - Fix PSTATE.SSBS handling on heterogeneous systems

   - Fix fallout from moving to the generic vDSO implementation

   - Fix stack unwinding in the face of frame corruption

   - Fix off-by-one in IORT code

   - Minor SVE cleanups"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  ACPI/IORT: Fix off-by-one check in iort_dev_find_its_id()
  arm64: entry: SP Alignment Fault doesn't write to FAR_EL1
  arm64: Force SSBS on context switch
  MAINTAINERS: Update my email address
  MAINTAINERS: Update my email address
  MAINTAINERS: Fix spelling mistake in my name
  MAINTAINERS: Update my email address to @kernel.org
  arm64: mm: Drop pte_huge()
  arm64/sve: Fix a couple of magic numbers for the Z-reg count
  arm64/sve: Factor out FPSIMD to SVE state conversion
  arm64: stacktrace: Better handle corrupted stacks
  arm64: stacktrace: Factor out backtrace initialisation
  arm64: stacktrace: Constify stacktrace.h functions
  arm64: vdso: Cleanup Makefiles
  arm64: vdso: fix flip/flop vdso build bug
  arm64: vdso: Fix population of AT_SYSINFO_EHDR for compat vdso

5 years agoMerge tag 'for-5.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Fri, 26 Jul 2019 18:08:37 +0000 (11:08 -0700)]
Merge tag 'for-5.3-rc1-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "Two regression fixes:

   - hangs caused by a missing barrier in the locking code

   - memory leaks of extent_state due to bad handling of a cached
     pointer"

* tag 'for-5.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix extent_state leak in btrfs_lock_and_flush_ordered_range
  btrfs: Fix deadlock caused by missing memory barrier

5 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Fri, 26 Jul 2019 17:58:44 +0000 (10:58 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/viro/vfs

Pull vfs umount_tree() leak fix from Al Viro:
 "Fix braino introduced in 'switch the remnants of releasing the
  mountpoint away from fs_pin'.

  The most visible result is leaking struct mount when mounting btrfs,
  making it impossible to shut down"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix the struct mount leak in umount_tree()

5 years agoMerge tag 'for-linus-20190726' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 26 Jul 2019 17:32:12 +0000 (10:32 -0700)]
Merge tag 'for-linus-20190726' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - Several io_uring fixes/improvements:
     - Blocking fix for O_DIRECT (me)
     - Latter page slowness for registered buffers (me)
     - Fix poll hang under certain conditions (me)
     - Defer sequence check fix for wrapped rings (Zhengyuan)
     - Mismatch in async inc/dec accounting (Zhengyuan)
     - Memory ordering issue that could cause stall (Zhengyuan)
      - Track sequential defer in bytes, not pages (Zhengyuan)

 - NVMe pull request from Christoph

 - Set of hang fixes for wbt (Josef)

 - Redundant error message kill for libahci (Ding)

 - Remove unused blk_mq_sched_started_request() and related ops (Marcos)

 - drbd dynamic alloc shash descriptor to reduce stack use (Arnd)

 - blkcg ->pd_stat() non-debug print (Tejun)

 - bcache memory leak fix (Wei)

 - Comment fix (Akinobu)

 - BFQ perf regression fix (Paolo)

* tag 'for-linus-20190726' of git://git.kernel.dk/linux-block: (24 commits)
  io_uring: ensure ->list is initialized for poll commands
  Revert "nvme-pci: don't create a read hctx mapping without read queues"
  nvme: fix multipath crash when ANA is deactivated
  nvme: fix memory leak caused by incorrect subsystem free
  nvme: ignore subnqn for ADATA SX6000LNP
  drbd: dynamically allocate shash descriptor
  block: blk-mq: Remove blk_mq_sched_started_request and started_request
  bcache: fix possible memory leak in bch_cached_dev_run()
  io_uring: track io length in async_list based on bytes
  io_uring: don't use iov_iter_advance() for fixed buffers
  block: properly handle IOCB_NOWAIT for async O_DIRECT IO
  blk-mq: allow REQ_NOWAIT to return an error inline
  io_uring: add a memory barrier before atomic_read
  rq-qos: use a mb for got_token
  rq-qos: set ourself TASK_UNINTERRUPTIBLE after we schedule
  rq-qos: don't reset has_sleepers on spurious wakeups
  rq-qos: fix missed wake-ups in rq_qos_throttle
  wait: add wq_has_single_sleeper helper
  block, bfq: check also in-flight I/O in dispatch plugging
  block: fix sysfs module parameters directory path in comment
  ...

5 years agoMerge tag 'sound-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 26 Jul 2019 17:23:45 +0000 (10:23 -0700)]
Merge tag 'sound-5.3-rc2' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "All relatively small changes:

   - a regression fix for PCM link code with CONFIG_REFCOUNT_FULL;
     stumbled on a slight difference between atomic_t and refcount_t

   - a couple of HD-audio stabilization patches addressing the too slow
     PM resume seen on some Intel chips

   - a series of ALSA compress-offload API fixes, including the
     regression by the previous capture stream support

   - trivial LINE6 USB-audio driver fixes, a new Conexant HD-audio chip
     coverage, and a fix in AC97 bus error path"

* tag 'sound-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Add a conexant codec entry to let mute led work
  ALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips
  ALSA: ac97: Fix double free of ac97_codec_device
  ALSA: compress: Be more restrictive about when a drain is allowed
  ALSA: compress: Don't allow paritial drain operations on capture streams
  ALSA: compress: Prevent bypasses of set_params
  ALSA: compress: Fix regression on compressed capture streams
  ALSA: line6: Fix a typo
  ALSA: pcm: Fix refcount_inc() on zero usage
  ALSA: line6: Fix wrong altsetting for LINE6_PODHD500_1
  ALSA: hda - Optimize resume for codecs without jack detection

5 years agoMerge tag 'iommu-fixes-v5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 26 Jul 2019 17:04:19 +0000 (10:04 -0700)]
Merge tag 'iommu-fixes-v5.3-rc1' of git://git./linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:

 - revert an Intel VT-d patch that caused boot problems on some machines

 - fix AMD IOMMU interrupts with x2apic enabled

 - fix a potential crash when Intel VT-d domain allocation fails

 - fix crash in Intel VT-d driver when accessing a domain without a
   flush queue

 - formatting fix for new Intel VT-d debugfs code

 - fix for use-after-free bug in IOVA code

 - fix for a NULL-pointer dereference in Intel VT-d driver when PCI
   hotplug is used

 - compilation fix for one of the previous fixes

* tag 'iommu-fixes-v5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Add support for X2APIC IOMMU interrupts
  iommu/iova: Fix compilation error with !CONFIG_IOMMU_IOVA
  iommu/vt-d: Print pasid table entries MSB to LSB in debugfs
  iommu/iova: Remove stale cached32_node
  iommu/vt-d: Check if domain->pgd was allocated
  iommu/vt-d: Don't queue_iova() if there is no flush queue
  iommu/vt-d: Avoid duplicated pci dma alias consideration
  Revert "iommu/vt-d: Consolidate domain_init() to avoid duplication"

5 years agoMerge branch 'for-linus-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad...
Linus Torvalds [Fri, 26 Jul 2019 16:43:43 +0000 (09:43 -0700)]
Merge branch 'for-linus-5.3' of git://git./linux/kernel/git/konrad/ibft

Pull iscsi_ibft fix from Konrad Rzeszutek Wilk:
 "One tiny fix to enable iSCSI IBFT to be compiled under ARM"

* 'for-linus-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft:
  iscsi_ibft: make ISCSI_IBFT depend on ACPI instead of ISCSI_IBFT_FIND

5 years agoMerge tag 'hwmon-for-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groec...
Linus Torvalds [Fri, 26 Jul 2019 16:36:01 +0000 (09:36 -0700)]
Merge tag 'hwmon-for-v5.3-rc2' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "A couple of hwmon bug fixes:

   - Update k8temp documentation URL

   - Register address fixes in nct6775 driver

   - Fix potential division by zero in occ driver"

* tag 'hwmon-for-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (k8temp) documentation: update URL of datasheet
  hwmon: (nct6775) Fix register address and added missed tolerance for nct6106
  hwmon: (occ) Fix division by zero issue

5 years agodocs: phy: Drop duplicate 'be made'
Guido Günther [Fri, 26 Jul 2019 09:55:34 +0000 (11:55 +0200)]
docs: phy: Drop duplicate 'be made'

Fix duplicate words.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
5 years agofix the struct mount leak in umount_tree()
Al Viro [Wed, 24 Jul 2019 16:45:46 +0000 (12:45 -0400)]
fix the struct mount leak in umount_tree()

We need to drop everything we remove from the tree, whether
mnt_has_parent() is true or not.  Usually the bug manifests as a slow
memory leak (leaked struct mount for initramfs); it becomes much more
visible in mount_subtree() users, such as btrfs.  There we leak
a struct mount for btrfs superblock being mounted, which prevents
fs shutdown on subsequent umount.

Fixes: 56cbb429d911 ("switch the remnants of releasing the mountpoint away from fs_pin")
Reported-by: Nikolay Borisov <nborisov@suse.com>
Tested-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
5 years agoMAINTAINERS: vfio-ccw: Remove myself as the maintainer
Farhan Ali [Wed, 24 Jul 2019 21:32:03 +0000 (17:32 -0400)]
MAINTAINERS: vfio-ccw: Remove myself as the maintainer

I will not be able to continue with my maintainership responsibilities
going forward, so remove myself as the maintainer.

Signed-off-by: Farhan Ali <alifm@linux.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agos390/mm: use shared variables for sysctl range check
Vasily Gorbik [Tue, 25 Jun 2019 22:00:42 +0000 (00:00 +0200)]
s390/mm: use shared variables for sysctl range check

Since commit eec4844fae7c ("proc/sysctl: add shared variables for range
check") special shared variables are available for sysctl range check.
Reuse them for /proc/sys/vm/allocate_pgste proc handler.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agovirtio/s390: fix race on airq_areas[]
Halil Pasic [Tue, 23 Jul 2019 15:11:01 +0000 (17:11 +0200)]
virtio/s390: fix race on airq_areas[]

The access to airq_areas was racy ever since the adapter interrupts got
introduced to virtio-ccw, but since commit 39c7dcb15892 ("virtio/s390:
make airq summary indicators DMA") this became an issue in practice as
well. Namely before that commit the airq_info that got overwritten was
still functional. After that commit however the two infos share a
summary_indicator, which aggravates the situation. Which means
auto-online mechanism occasionally hangs the boot with virtio_blk.

Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 96b14536d935 ("virtio-ccw: virtio-ccw adapter interrupt support.")
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agos390/dma: provide proper ARCH_ZONE_DMA_BITS value
Halil Pasic [Tue, 23 Jul 2019 22:51:55 +0000 (00:51 +0200)]
s390/dma: provide proper ARCH_ZONE_DMA_BITS value

On s390 ZONE_DMA is up to 2G, i.e. ARCH_ZONE_DMA_BITS should be 31 bits.
The current value is 24 and makes __dma_direct_alloc_pages() take a
wrong turn first (but __dma_direct_alloc_pages() recovers then).

Let's correct ARCH_ZONE_DMA_BITS value and avoid wrong turns.

Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Reported-by: Petr Tesarik <ptesarik@suse.cz>
Fixes: c61e9637340e ("dma-direct: add support for allocation from ZONE_DMA and ZONE_DMA32")
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agobtrfs: fix extent_state leak in btrfs_lock_and_flush_ordered_range
Naohiro Aota [Fri, 26 Jul 2019 07:47:05 +0000 (16:47 +0900)]
btrfs: fix extent_state leak in btrfs_lock_and_flush_ordered_range

btrfs_lock_and_flush_ordered_range() loads given "*cached_state" into
cachedp, which, in general, is NULL. Then, lock_extent_bits() updates
"cachedp", but it never goes backs to the caller. Thus the caller still
see its "cached_state" to be NULL and never free the state allocated
under btrfs_lock_and_flush_ordered_range(). As a result, we will
see massive state leak with e.g. fstests btrfs/005. Fix this bug by
properly handling the pointers.

Fixes: bd80d94efb83 ("btrfs: Always use a cached extent_state in btrfs_lock_and_flush_ordered_range")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
5 years agoMerge tag 'drm-fixes-5.3-2019-07-24' of git://people.freedesktop.org/~agd5f/linux...
Dave Airlie [Fri, 26 Jul 2019 04:10:24 +0000 (14:10 +1000)]
Merge tag 'drm-fixes-5.3-2019-07-24' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

drm-fixes-5.3-2019-07-24:

amdgpu:
- RAS fixes for vega20
- Navi VCN fix
- DC audio fixes
- DC DSC fixes
- DC dongle fixes
- DC clk mgr fixes
- Fix DDC lines on some RV2 boards
- GDS fixes for compute
- Navi SMU fixes

ttm:
- Use the same attributes when freeing d_page->vaddr

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190724210527.3415-1-alexander.deucher@amd.com
5 years agoMerge tag 'drm-misc-fixes-2019-07-25' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Fri, 26 Jul 2019 04:09:49 +0000 (14:09 +1000)]
Merge tag 'drm-misc-fixes-2019-07-25' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

- pick up the cmdline fix which missed the merge window (Dmitry)
- a handful of msm fixes so i don't have to spin up msm-fixes (Various)
- fix -Wunused-but-set-variable warning in drm_framebuffer (Qian)

Cc: Dmitry Osipenko <digetx@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Qian Cai <cai@lca.pw>
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190725160909.GA106249@art_vandelay
5 years agoMakefile: Globally enable fall-through warning
Gustavo A. R. Silva [Fri, 7 Jun 2019 00:46:17 +0000 (19:46 -0500)]
Makefile: Globally enable fall-through warning

Now that all the fall-through warnings have been addressed in the
kernel, enable the fall-through warning globally.

Also, update the deprecated.rst file to include implicit fall-through
as 'deprecated' so people can be pointed to a single location for
justification.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agodrm/i915: Mark expected switch fall-throughs
Gustavo A. R. Silva [Mon, 22 Jul 2019 18:03:46 +0000 (13:03 -0500)]
drm/i915: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/gpu/drm/i915/gem/i915_gem_mman.c: In function ‘i915_gem_fault’:
drivers/gpu/drm/i915/gem/i915_gem_mman.c:342:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (!i915_terminally_wedged(i915))
      ^
drivers/gpu/drm/i915/gem/i915_gem_mman.c:345:2: note: here
  case -EAGAIN:
  ^~~~

drivers/gpu/drm/i915/gem/i915_gem_pages.c: In function ‘i915_gem_object_map’:
./include/linux/compiler.h:78:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
 # define unlikely(x) __builtin_expect(!!(x), 0)
                      ^~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/bug.h:136:2: note: in expansion of macro ‘unlikely’
  unlikely(__ret_warn_on);     \
  ^~~~~~~~
drivers/gpu/drm/i915/i915_utils.h:49:25: note: in expansion of macro ‘WARN’
 #define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \
                         ^~~~
drivers/gpu/drm/i915/gem/i915_gem_pages.c:270:3: note: in expansion of macro ‘MISSING_CASE’
   MISSING_CASE(type);
   ^~~~~~~~~~~~
drivers/gpu/drm/i915/gem/i915_gem_pages.c:272:2: note: here
  case I915_MAP_WB:
  ^~~~

drivers/gpu/drm/i915/i915_gpu_error.c: In function ‘error_record_engine_registers’:
./include/linux/compiler.h:78:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
 # define unlikely(x) __builtin_expect(!!(x), 0)
                      ^~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/bug.h:136:2: note: in expansion of macro ‘unlikely’
  unlikely(__ret_warn_on);     \
  ^~~~~~~~
drivers/gpu/drm/i915/i915_utils.h:49:25: note: in expansion of macro ‘WARN’
 #define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \
                         ^~~~
drivers/gpu/drm/i915/i915_gpu_error.c:1196:5: note: in expansion of macro ‘MISSING_CASE’
     MISSING_CASE(engine->id);
     ^~~~~~~~~~~~
drivers/gpu/drm/i915/i915_gpu_error.c:1197:4: note: here
    case RCS0:
    ^~~~

drivers/gpu/drm/i915/display/intel_dp.c: In function ‘intel_dp_get_fia_supported_lane_count’:
./include/linux/compiler.h:78:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
 # define unlikely(x) __builtin_expect(!!(x), 0)
                      ^~~~~~~~~~~~~~~~~~~~~~~~~~
./include/asm-generic/bug.h:136:2: note: in expansion of macro ‘unlikely’
  unlikely(__ret_warn_on);     \
  ^~~~~~~~
drivers/gpu/drm/i915/i915_utils.h:49:25: note: in expansion of macro ‘WARN’
 #define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \
                         ^~~~
drivers/gpu/drm/i915/display/intel_dp.c:233:3: note: in expansion of macro ‘MISSING_CASE’
   MISSING_CASE(lane_info);
   ^~~~~~~~~~~~
drivers/gpu/drm/i915/display/intel_dp.c:234:2: note: here
  case 1:
  ^~~~

drivers/gpu/drm/i915/display/intel_display.c: In function ‘check_digital_port_conflicts’:
  CC [M]  drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgv100.o
drivers/gpu/drm/i915/display/intel_display.c:12043:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
    if (WARN_ON(!HAS_DDI(to_i915(dev))))
       ^
drivers/gpu/drm/i915/display/intel_display.c:12046:3: note: here
   case INTEL_OUTPUT_DP:
   ^~~~

Also, notice that the Makefile is modified to stop ignoring
fall-through warnings. The -Wimplicit-fallthrough option
will be enabled globally in v5.3.

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agodrm/amd/display: Mark expected switch fall-throughs
Gustavo A. R. Silva [Fri, 26 Jul 2019 00:13:51 +0000 (19:13 -0500)]
drm/amd/display: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agodrm/amdkfd/kfd_mqd_manager_v10: Avoid fall-through warning
Gustavo A. R. Silva [Mon, 22 Jul 2019 16:26:31 +0000 (11:26 -0500)]
drm/amdkfd/kfd_mqd_manager_v10: Avoid fall-through warning

In preparation to enabling -Wimplicit-fallthrough, this patch silences
the following warning:

drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_mqd_manager_v10.c: In function ‘mqd_manager_init_v10’:
./include/linux/dynamic_debug.h:122:52: warning: this statement may fall through [-Wimplicit-fallthrough=]
 #define __dynamic_func_call(id, fmt, func, ...) do { \
                                                    ^
./include/linux/dynamic_debug.h:143:2: note: in expansion of macro ‘__dynamic_func_call’
  __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__)
  ^~~~~~~~~~~~~~~~~~~
./include/linux/dynamic_debug.h:153:2: note: in expansion of macro ‘_dynamic_func_call’
  _dynamic_func_call(fmt, __dynamic_pr_debug,  \
  ^~~~~~~~~~~~~~~~~~
./include/linux/printk.h:336:2: note: in expansion of macro ‘dynamic_pr_debug’
  dynamic_pr_debug(fmt, ##__VA_ARGS__)
  ^~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_mqd_manager_v10.c:432:3: note: in expansion of macro ‘pr_debug’
   pr_debug("%s@%i\n", __func__, __LINE__);
   ^~~~~~~~
drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_mqd_manager_v10.c:433:2: note: here
  case KFD_MQD_TYPE_COMPUTE:
  ^~~~

by removing the call to pr_debug() in KFD_MQD_TYPE_CP:

"The mqd init for CP and COMPUTE will have the same  routine." [1]

This bug was found thanks to the ongoing efforts to enable
-Wimplicit-fallthrough.

[1] https://lore.kernel.org/lkml/c735a1cc-a545-50fb-44e7-c0ad93ee8ee7@amd.com/

Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agodrm/amdgpu/gfx10: Fix missing break in switch statement
Gustavo A. R. Silva [Sun, 21 Jul 2019 22:37:33 +0000 (17:37 -0500)]
drm/amdgpu/gfx10: Fix missing break in switch statement

Add missing break statement in order to prevent the code from falling
through to case AMDGPU_IRQ_STATE_ENABLE.

This bug was found thanks to the ongoing efforts to enable
-Wimplicit-fallthrough.

Fixes: a644d85a5cd4 ("drm/amdgpu: add gfx v10 implementation (v10)")
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agodrm/amdkfd: Fix missing break in switch statement
Gustavo A. R. Silva [Sun, 21 Jul 2019 21:41:37 +0000 (16:41 -0500)]
drm/amdkfd: Fix missing break in switch statement

Add missing break statement in order to prevent the code from falling
through to case CHIP_NAVI10.

This bug was found thanks to the ongoing efforts to enable
-Wimplicit-fallthrough.

Fixes: 14328aa58ce5 ("drm/amdkfd: Add navi10 support to amdkfd. (v3)")
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agoperf/x86/intel: Mark expected switch fall-throughs
Gustavo A. R. Silva [Mon, 24 Jun 2019 16:11:07 +0000 (11:11 -0500)]
perf/x86/intel: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

arch/x86/events/intel/core.c: In function ‘intel_pmu_init’:
arch/x86/events/intel/core.c:4959:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
   pmem = true;
   ~~~~~^~~~~~
arch/x86/events/intel/core.c:4960:2: note: here
  case INTEL_FAM6_SKYLAKE_MOBILE:
  ^~~~
arch/x86/events/intel/core.c:5008:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
   pmem = true;
   ~~~~~^~~~~~
arch/x86/events/intel/core.c:5009:2: note: here
  case INTEL_FAM6_ICELAKE_MOBILE:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agomtd: onenand_base: Mark expected switch fall-through
Gustavo A. R. Silva [Tue, 4 Jun 2019 13:58:02 +0000 (08:58 -0500)]
mtd: onenand_base: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

This patch fixes the following warning:

drivers/mtd/nand/onenand/onenand_base.c: In function ‘onenand_check_features’:
drivers/mtd/nand/onenand/onenand_base.c:3264:17: warning: this statement may fall through [-Wimplicit-fallthrough=]
   this->options |= ONENAND_HAS_NOP_1;
drivers/mtd/nand/onenand/onenand_base.c:3265:2: note: here
  case ONENAND_DEVICE_DENSITY_4Gb:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Cc: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agoafs: fsclient: Mark expected switch fall-throughs
Gustavo A. R. Silva [Sun, 19 May 2019 23:43:53 +0000 (18:43 -0500)]
afs: fsclient: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

Warning level 3 was used: -Wimplicit-fallthrough=3

fs/afs/fsclient.c: In function ‘afs_deliver_fs_fetch_acl’:
fs/afs/fsclient.c:2199:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
   call->unmarshall++;
   ~~~~~~~~~~~~~~~~^~
fs/afs/fsclient.c:2202:2: note: here
  case 1:
  ^~~~
fs/afs/fsclient.c:2216:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
   call->unmarshall++;
   ~~~~~~~~~~~~~~~~^~
fs/afs/fsclient.c:2219:2: note: here
  case 2:
  ^~~~
fs/afs/fsclient.c:2225:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
   call->unmarshall++;
   ~~~~~~~~~~~~~~~~^~
fs/afs/fsclient.c:2228:2: note: here
  case 3:
  ^~~~

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agoafs: yfsclient: Mark expected switch fall-throughs
Gustavo A. R. Silva [Sun, 19 May 2019 23:56:50 +0000 (18:56 -0500)]
afs: yfsclient: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

fs/afs/yfsclient.c: In function ‘yfs_deliver_fs_fetch_opaque_acl’:
fs/afs/yfsclient.c:1984:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
   call->unmarshall++;
   ~~~~~~~~~~~~~~~~^~
fs/afs/yfsclient.c:1987:2: note: here
  case 1:
  ^~~~
fs/afs/yfsclient.c:2005:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
   call->unmarshall++;
   ~~~~~~~~~~~~~~~~^~
fs/afs/yfsclient.c:2008:2: note: here
  case 2:
  ^~~~
fs/afs/yfsclient.c:2014:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
   call->unmarshall++;
   ~~~~~~~~~~~~~~~~^~
fs/afs/yfsclient.c:2017:2: note: here
  case 3:
  ^~~~
fs/afs/yfsclient.c:2035:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
   call->unmarshall++;
   ~~~~~~~~~~~~~~~~^~
fs/afs/yfsclient.c:2038:2: note: here
  case 4:
  ^~~~
fs/afs/yfsclient.c:2047:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
   call->unmarshall++;
   ~~~~~~~~~~~~~~~~^~
fs/afs/yfsclient.c:2050:2: note: here
  case 5:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

Also, fix some commenting style issues.

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agocan: mark expected switch fall-throughs
Gustavo A. R. Silva [Tue, 29 Jan 2019 17:59:28 +0000 (11:59 -0600)]
can: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

This patch fixes the following warnings:

drivers/net/can/peak_canfd/peak_pciefd_main.c:668:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/can/spi/mcp251x.c:875:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/can/usb/peak_usb/pcan_usb.c:422:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/can/at91_can.c:895:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/can/at91_can.c:953:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/can/usb/peak_usb/pcan_usb.c: In function ‘pcan_usb_decode_error’:
drivers/net/can/usb/peak_usb/pcan_usb.c:422:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (n & PCAN_USB_ERROR_BUS_LIGHT) {
      ^
drivers/net/can/usb/peak_usb/pcan_usb.c:428:2: note: here
  case CAN_STATE_ERROR_WARNING:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enabling
-Wimplicit-fallthrough.

Notice that in some cases spelling mistakes were fixed.
In other cases, the /* fall through */ comment is placed
at the bottom of the case statement, which is what GCC
is expecting to find.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agofirewire: mark expected switch fall-throughs
Gustavo A. R. Silva [Mon, 11 Feb 2019 17:48:21 +0000 (11:48 -0600)]
firewire: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/firewire/core-device.c: In function ‘set_broadcast_channel’:
drivers/firewire/core-device.c:969:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
    if (data & cpu_to_be32(1 << 31)) {
       ^
drivers/firewire/core-device.c:974:3: note: here
   case RCODE_ADDRESS_ERROR:
   ^~~~
drivers/firewire/core-iso.c: In function ‘manage_channel’:
drivers/firewire/core-iso.c:308:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
    if ((data[0] & bit) == (data[1] & bit))
       ^
drivers/firewire/core-iso.c:312:3: note: here
   default:
   ^~~~~~~
drivers/firewire/core-topology.c: In function ‘count_ports’:
drivers/firewire/core-topology.c:69:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
    (*child_port_count)++;
    ~~~~~~~~~~~~~~~~~~~^~
drivers/firewire/core-topology.c:70:3: note: here
   case SELFID_PORT_PARENT:
   ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

Notice that in some cases, the code comment is modified in
accordance with what GCC is expecting to find.

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Cc: Kees Cook <keescook@chromium.org>
Cc: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (reworded a comment)
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
5 years agoMerge branch 'nvme-5.3' of git://git.infradead.org/nvme into for-linus
Jens Axboe [Thu, 25 Jul 2019 16:23:15 +0000 (10:23 -0600)]
Merge branch 'nvme-5.3' of git://git.infradead.org/nvme into for-linus

Pull NVMe fixes from Christoph.

* 'nvme-5.3' of git://git.infradead.org/nvme:
  Revert "nvme-pci: don't create a read hctx mapping without read queues"
  nvme: fix multipath crash when ANA is deactivated
  nvme: fix memory leak caused by incorrect subsystem free
  nvme: ignore subnqn for ADATA SX6000LNP

5 years agoio_uring: ensure ->list is initialized for poll commands
Jens Axboe [Thu, 25 Jul 2019 16:20:18 +0000 (10:20 -0600)]
io_uring: ensure ->list is initialized for poll commands

Daniel reports that when testing an http server that uses io_uring
to poll for incoming connections, sometimes it hard crashes. This is
due to an uninitialized list member for the io_uring request. Normally
this doesn't trigger and none of the test cases caught it.

Reported-by: Daniel Kozak <kozzi11@gmail.com>
Tested-by: Daniel Kozak <kozzi11@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
5 years agoMerge tag 'pm-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Thu, 25 Jul 2019 16:07:32 +0000 (09:07 -0700)]
Merge tag 'pm-5.3-rc2' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki
 "These fix two issues related to the RAPL MMIO interface support added
  recently and one cpufreq driver issue.

  Specifics:

   - Initialize the power capping subsystem and the RAPL driver earlier
     in case the int340X thermal driver is built-in and attempts to
     register an MMIO interface for RAPL which must not happen before
     the requisite infrastructure is ready (Zhang Rui)

   - Fix the int340X thermal driver's RAPL MMIO interface registration
     error path (Rafael Wysocki)

   - Fix possible use-after-free in the pasemi cpufreq driver (Wen
     Yang)"

* tag 'pm-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()
  int340X/processor_thermal_device: Fix proc_thermal_rapl_remove()
  powercap: Invoke powercap_init() and rapl_init() earlier

5 years agoMerge tag 'riscv/for-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv...
Linus Torvalds [Thu, 25 Jul 2019 16:02:34 +0000 (09:02 -0700)]
Merge tag 'riscv/for-v5.3-rc2' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V updates from Paul Walmsley:
 "Four minor RISC-V-related changes:

   - Add support for the new clone3 syscall for RV64, relying on the
     generic support

   - Add DT data for the gigabit Ethernet controller on the SiFive FU540
     and the HiFive Unleashed board

   - Update MAINTAINERS to add me to the arch/riscv maintainers' list

   - Add support for PCIe message-signaled interrupts by reusing the
     generic header file"

* tag 'riscv/for-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: dts: Add DT node for SiFive FU540 Ethernet controller driver
  riscv: include generic support for MSI irqdomains
  MAINTAINERS: Add Paul as a RISC-V maintainer
  riscv: enable sys_clone3 syscall for rv64

5 years agoMerge tag 'ktest-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux...
Linus Torvalds [Thu, 25 Jul 2019 15:58:32 +0000 (08:58 -0700)]
Merge tag 'ktest-v5.3' of git://git./linux/kernel/git/rostedt/linux-ktest

Pull ktest fixlets from Steven Rostedt:
 "This contains only simple spelling fixes"

* tag 'ktest-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest: Fix some typos in config-bisect.pl

5 years agoMerge branch 'access-creds'
Linus Torvalds [Thu, 25 Jul 2019 15:36:29 +0000 (08:36 -0700)]
Merge branch 'access-creds'

The access() (and faccessat()) credentials change can cause an
unnecessary load on the RCU machinery because every access() call ends
up freeing the temporary access credential using RCU.

This isn't really noticeable on small machines, but if you have hundreds
of cores you can cause huge slowdowns due to RCU storms.

It's easy to avoid: the temporary access crededntials aren't actually
normally accessed using RCU at all, so we can avoid the whole issue by
just marking them as such.

* access-creds:
  access: avoid the RCU grace period for the temporary subjective credentials

5 years agobtrfs: Fix deadlock caused by missing memory barrier
Nikolay Borisov [Thu, 25 Jul 2019 08:27:29 +0000 (11:27 +0300)]
btrfs: Fix deadlock caused by missing memory barrier

Commit 06297d8cefca ("btrfs: switch extent_buffer blocking_writers from
atomic to int") changed the type of blocking_writers but forgot to
adjust relevant code in btrfs_tree_unlock by converting the
smp_mb__after_atomic to smp_mb.  This opened up the possibility of a
deadlock due to re-ordering of setting blocking_writers and
checking/waking up the waiter. This particular lockup is explained in a
comment above waitqueue_active() function.

Fix it by converting the memory barrier to a full smp_mb, accounting
for the fact that blocking_writers is a simple integer.

Fixes: 06297d8cefca ("btrfs: switch extent_buffer blocking_writers from atomic to int")
Tested-by: Johannes Thumshirn <jthumshirn@suse.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
5 years agoMerge branch 'pm-cpufreq'
Rafael J. Wysocki [Thu, 25 Jul 2019 08:46:07 +0000 (10:46 +0200)]
Merge branch 'pm-cpufreq'

* pm-cpufreq:
  cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()

5 years agoALSA: hda - Add a conexant codec entry to let mute led work
Hui Wang [Thu, 25 Jul 2019 06:57:37 +0000 (14:57 +0800)]
ALSA: hda - Add a conexant codec entry to let mute led work

This conexant codec isn't in the supported codec list yet, the hda
generic driver can drive this codec well, but on a Lenovo machine
with mute/mic-mute leds, we need to apply CXT_FIXUP_THINKPAD_ACPI
to make the leds work. After adding this codec to the list, the
driver patch_conexant.c will apply THINKPAD_ACPI to this machine.

Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoobjtool: Improve UACCESS coverage
Peter Zijlstra [Wed, 24 Jul 2019 22:47:26 +0000 (17:47 -0500)]
objtool: Improve UACCESS coverage

A clang build reported an (obvious) double CLAC while a GCC build did not;
it turns out that objtool only re-visits instructions if the first visit
was with AC=0. If OTOH the first visit was with AC=1, it completely ignores
any subsequent visit, even when it has AC=0.

Fix this by using a visited mask instead of a boolean, and (explicitly)
mark the AC state.

$ ./objtool check -b --no-fp --retpoline --uaccess drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool: .altinstr_replacement+0x22: redundant UACCESS disable
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool:   eb_copy_relocations.isra.34()+0xea: (alt)
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool:   .altinstr_replacement+0xffffffffffffffff: (branch)
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool:   eb_copy_relocations.isra.34()+0xd9: (alt)
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool:   eb_copy_relocations.isra.34()+0xb2: (branch)
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool:   eb_copy_relocations.isra.34()+0x39: (branch)
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool:   eb_copy_relocations.isra.34()+0x0: <=== (func)

Reported-by: Josh Poimboeuf <jpoimboe@redhat.com>
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/617
Link: https://lkml.kernel.org/r/5359166aad2d53f3145cd442d83d0e5115e0cd17.1564007838.git.jpoimboe@redhat.com
5 years agoALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips
Takashi Iwai [Fri, 19 Jul 2019 08:27:54 +0000 (10:27 +0200)]
ALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips

It turned out that the recent Intel HD-audio controller chips show a
significant stall during the system PM resume intermittently.  It
doesn't happen so often and usually it may read back successfully
after one or more seconds, but in some rare worst cases the driver
went into fallback mode.

After trial-and-error, we found out that the communication stall seems
covered by issuing the sync after each verb write, as already done for
AMD and other chipsets.  So this patch enables the write-sync flag for
the recent Intel chips, Skylake and onward, as a workaround.

Also, since Broxton and co have the very same driver flags as Skylake,
refer to the Skylake driver flags instead of defining the same
contents again for simplification.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201901
Reported-and-tested-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agodt-bindings: interrupt-controller: al-fic: remove redundant binding
Talel Shenhar [Thu, 11 Jul 2019 06:38:59 +0000 (09:38 +0300)]
dt-bindings: interrupt-controller: al-fic: remove redundant binding

Remove dt binding description for standard binding.

Signed-off-by: Talel Shenhar <talel@amazon.com>
Signed-off-by: Rob Herring <robh@kernel.org>
5 years agoktest: Fix some typos in config-bisect.pl
Masanari Iida [Tue, 23 Jul 2019 03:24:45 +0000 (12:24 +0900)]
ktest: Fix some typos in config-bisect.pl

This patch fixes some spelling typos in config-bisect.pl

Link: http://lkml.kernel.org/r/20190723032445.14220-1-standby24x7@gmail.com
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
5 years agoaccess: avoid the RCU grace period for the temporary subjective credentials
Linus Torvalds [Thu, 11 Jul 2019 16:54:40 +0000 (09:54 -0700)]
access: avoid the RCU grace period for the temporary subjective credentials

It turns out that 'access()' (and 'faccessat()') can cause a lot of RCU
work because it installs a temporary credential that gets allocated and
freed for each system call.

The allocation and freeing overhead is mostly benign, but because
credentials can be accessed under the RCU read lock, the freeing
involves a RCU grace period.

Which is not a huge deal normally, but if you have a lot of access()
calls, this causes a fair amount of seconday damage: instead of having a
nice alloc/free patterns that hits in hot per-CPU slab caches, you have
all those delayed free's, and on big machines with hundreds of cores,
the RCU overhead can end up being enormous.

But it turns out that all of this is entirely unnecessary.  Exactly
because access() only installs the credential as the thread-local
subjective credential, the temporary cred pointer doesn't actually need
to be RCU free'd at all.  Once we're done using it, we can just free it
synchronously and avoid all the RCU overhead.

So add a 'non_rcu' flag to 'struct cred', which can be set by users that
know they only use it in non-RCU context (there are other potential
users for this).  We can make it a union with the rcu freeing list head
that we need for the RCU case, so this doesn't need any extra storage.

Note that this also makes 'get_current_cred()' clear the new non_rcu
flag, in case we have filesystems that take a long-term reference to the
cred and then expect the RCU delayed freeing afterwards.  It's not
entirely clear that this is required, but it makes for clear semantics:
the subjective cred remains non-RCU as long as you only access it
synchronously using the thread-local accessors, but you _can_ use it as
a generic cred if you want to.

It is possible that we should just remove the whole RCU markings for
->cred entirely.  Only ->real_cred is really supposed to be accessed
through RCU, and the long-term cred copies that nfs uses might want to
explicitly re-enable RCU freeing if required, rather than have
get_current_cred() do it implicitly.

But this is a "minimal semantic changes" change for the immediate
problem.

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Jan Glauber <jglauber@marvell.com>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Jayachandran Chandrasekharan Nair <jnair@marvell.com>
Cc: Greg KH <greg@kroah.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
5 years agoMerge tag 'powerpc-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Wed, 24 Jul 2019 16:58:39 +0000 (09:58 -0700)]
Merge tag 'powerpc-5.3-2' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "An assortment of non-regression fixes that have accumulated since the
  start of the merge window.

   - A fix for a user triggerable oops on machines where transactional
     memory is disabled, eg. Power9 bare metal, Power8 with TM disabled
     on the command line, or all Power7 or earlier machines.

   - Three fixes for handling of PMU and power saving registers when
     running nested KVM on Power9.

   - Two fixes for bugs found while stress testing the XIVE interrupt
     controller code, also on Power9.

   - A fix to allow guests to boot under Qemu/KVM on Power9 using the
     the Hash MMU with >= 1TB of memory.

   - Two fixes for bugs in the recent DMA cleanup, one of which could
     lead to checkstops.

   - And finally three fixes for the PAPR SCM nvdimm driver.

  Thanks to: Alexey Kardashevskiy, Andrea Arcangeli, Cédric Le Goater,
  Christoph Hellwig, David Gibson, Gautham R. Shenoy, Michael Neuling,
  Oliver O'Halloran, Satheesh Rajendran, Shawn Anastasio, Suraj Jitindar
  Singh, Vaibhav Jain"

* tag 'powerpc-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/papr_scm: Force a scm-unbind if initial scm-bind fails
  powerpc/papr_scm: Update drc_pmem_unbind() to use H_SCM_UNBIND_ALL
  powerpc/pseries: Update SCM hcall op-codes in hvcall.h
  powerpc/tm: Fix oops on sigreturn on systems without TM
  powerpc/dma: Fix invalid DMA mmap behavior
  KVM: PPC: Book3S HV: XIVE: fix rollback when kvmppc_xive_create fails
  powerpc/xive: Fix loop exit-condition in xive_find_target_in_mask()
  powerpc: fix off by one in max_zone_pfn initialization for ZONE_DMA
  KVM: PPC: Book3S HV: Save and restore guest visible PSSCR bits on pseries
  powerpc/pmu: Set pmcregs_in_use in paca when running as LPAR
  KVM: PPC: Book3S HV: Always save guest pmu for guest capable of nesting
  powerpc/mm: Limit rma_size to 1TB when running without HV mode

5 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Wed, 24 Jul 2019 16:46:13 +0000 (09:46 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "Bugfixes, a pvspinlock optimization, and documentation moving"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: X86: Boost queue head vCPU to mitigate lock waiter preemption
  Documentation: move Documentation/virtual to Documentation/virt
  KVM: nVMX: Set cached_vmcs12 and cached_shadow_vmcs12 NULL after free
  KVM: X86: Dynamically allocate user_fpu
  KVM: X86: Fix fpu state crash in kvm guest
  Revert "kvm: x86: Use task structs fpu field for user"
  KVM: nVMX: Clear pending KVM_REQ_GET_VMCS12_PAGES when leaving nested

5 years agoMerge tag 'dma-mapping-5.3-2' of git://git.infradead.org/users/hch/dma-mapping
Linus Torvalds [Wed, 24 Jul 2019 16:28:55 +0000 (09:28 -0700)]
Merge tag 'dma-mapping-5.3-2' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping regression fix from Christoph Hellwig:
 "Ensure that dma_addressing_limited doesn't crash on devices without a
  dma mask (Eric Auger)"

* tag 'dma-mapping-5.3-2' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: use dma_get_mask in dma_addressing_limited

5 years agoselinux: check sidtab limit before adding a new entry
Ondrej Mosnacek [Tue, 23 Jul 2019 06:50:59 +0000 (08:50 +0200)]
selinux: check sidtab limit before adding a new entry

We need to error out when trying to add an entry above SIDTAB_MAX in
sidtab_reverse_lookup() to avoid overflow on the odd chance that this
happens.

Cc: stable@vger.kernel.org
Fixes: ee1a84fdfeed ("selinux: overhaul sidtab to fix bug and improve performance")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Paul Moore <paul@paul-moore.com>
5 years agodt-bindings: clk: allwinner,sun4i-a10-ccu: Correct path in $id
Rob Herring [Tue, 23 Jul 2019 23:03:44 +0000 (17:03 -0600)]
dt-bindings: clk: allwinner,sun4i-a10-ccu: Correct path in $id

The path in the schema '$id' value is wrong. Fix it.

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: linux-clk@vger.kernel.org
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
5 years agoKVM: X86: Boost queue head vCPU to mitigate lock waiter preemption
Wanpeng Li [Wed, 24 Jul 2019 09:43:13 +0000 (17:43 +0800)]
KVM: X86: Boost queue head vCPU to mitigate lock waiter preemption

Commit 11752adb (locking/pvqspinlock: Implement hybrid PV queued/unfair locks)
introduces hybrid PV queued/unfair locks
 - queued mode (no starvation)
 - unfair mode (good performance on not heavily contended lock)
The lock waiter goes into the unfair mode especially in VMs with over-commit
vCPUs since increaing over-commitment increase the likehood that the queue
head vCPU may have been preempted and not actively spinning.

However, reschedule queue head vCPU timely to acquire the lock still can get
better performance than just depending on lock stealing in over-subscribe
scenario.

Testing on 80 HT 2 socket Xeon Skylake server, with 80 vCPUs VM 80GB RAM:
ebizzy -M
             vanilla     boosting    improved
 1VM          23520        25040         6%
 2VM           8000        13600        70%
 3VM           3100         5400        74%

The lock holder vCPU yields to the queue head vCPU when unlock, to boost queue
head vCPU which is involuntary preemption or the one which is voluntary halt
due to fail to acquire the lock after a short spin in the guest.

Cc: Waiman Long <longman@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoDocumentation: move Documentation/virtual to Documentation/virt
Christoph Hellwig [Wed, 24 Jul 2019 07:24:49 +0000 (09:24 +0200)]
Documentation: move Documentation/virtual to Documentation/virt

Renaming docs seems to be en vogue at the moment, so fix on of the
grossly misnamed directories.  We usually never use "virtual" as
a shortcut for virtualization in the kernel, but always virt,
as seen in the virt/ top-level directory.  Fix up the documentation
to match that.

Fixes: ed16648eb5b8 ("Move kvm, uml, and lguest subdirectories under a common "virtual" directory, I.E:")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoscsi: scsi_dh_alua: always use a 2 second delay before retrying RTPG
Hannes Reinecke [Fri, 12 Jul 2019 06:53:47 +0000 (08:53 +0200)]
scsi: scsi_dh_alua: always use a 2 second delay before retrying RTPG

Retrying immediately after we've received a 'transitioning' sense code is
pretty much pointless, we should always use a delay before retrying.  So
ensure the default delay is applied before retrying.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Tested-by: Zhangguanghui <zhang.guanghui@h3c.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
5 years agoscsi: ibmvfc: fix WARN_ON during event pool release
Tyrel Datwyler [Wed, 17 Jul 2019 19:48:27 +0000 (14:48 -0500)]
scsi: ibmvfc: fix WARN_ON during event pool release

While removing an ibmvfc client adapter a WARN_ON like the following
WARN_ON is seen in the kernel log:

WARNING: CPU: 6 PID: 5421 at ./include/linux/dma-mapping.h:541
ibmvfc_free_event_pool+0x12c/0x1f0 [ibmvfc]
CPU: 6 PID: 5421 Comm: rmmod Tainted: G            E     4.17.0-rc1-next-20180419-autotest #1
NIP:  d00000000290328c LR: d00000000290325c CTR: c00000000036ee20
REGS: c000000288d1b7e0 TRAP: 0700   Tainted: G            E      (4.17.0-rc1-next-20180419-autotest)
MSR:  800000010282b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]>  CR: 44008828  XER: 20000000
CFAR: c00000000036e408 SOFTE: 1
GPR00: d00000000290325c c000000288d1ba60 d000000002917900 c000000289d75448
GPR04: 0000000000000071 c0000000ff870000 0000000018040000 0000000000000001
GPR08: 0000000000000000 c00000000156e838 0000000000000001 d00000000290c640
GPR12: c00000000036ee20 c00000001ec4dc00 0000000000000000 0000000000000000
GPR16: 0000000000000000 0000000000000000 00000100276901e0 0000000010020598
GPR20: 0000000010020550 0000000010020538 0000000010020578 00000000100205b0
GPR24: 0000000000000000 0000000000000000 0000000010020590 5deadbeef0000100
GPR28: 5deadbeef0000200 d000000002910b00 0000000000000071 c0000002822f87d8
NIP [d00000000290328c] ibmvfc_free_event_pool+0x12c/0x1f0 [ibmvfc]
LR [d00000000290325c] ibmvfc_free_event_pool+0xfc/0x1f0 [ibmvfc]
Call Trace:
[c000000288d1ba60] [d00000000290325c] ibmvfc_free_event_pool+0xfc/0x1f0 [ibmvfc] (unreliable)
[c000000288d1baf0] [d000000002909390] ibmvfc_abort_task_set+0x7b0/0x8b0 [ibmvfc]
[c000000288d1bb70] [c0000000000d8c68] vio_bus_remove+0x68/0x100
[c000000288d1bbb0] [c0000000007da7c4] device_release_driver_internal+0x1f4/0x2d0
[c000000288d1bc00] [c0000000007da95c] driver_detach+0x7c/0x100
[c000000288d1bc40] [c0000000007d8af4] bus_remove_driver+0x84/0x140
[c000000288d1bcb0] [c0000000007db6ac] driver_unregister+0x4c/0xa0
[c000000288d1bd20] [c0000000000d6e7c] vio_unregister_driver+0x2c/0x50
[c000000288d1bd50] [d00000000290ba0c] cleanup_module+0x24/0x15e0 [ibmvfc]
[c000000288d1bd70] [c0000000001dadb0] sys_delete_module+0x220/0x2d0
[c000000288d1be30] [c00000000000b284] system_call+0x58/0x6c
Instruction dump:
e8410018 e87f0068 809f0078 e8bf0080 e8df0088 2fa30000 419e008c e9230200
2fa90000 419e0080 894d098a 794a07e0 <0b0a0000e9290008 2fa90000 419e0028

This is tripped as a result of irqs being disabled during the call to
dma_free_coherent() by ibmvfc_free_event_pool(). At this point in the code path
we have quiesced the adapter and its overly paranoid anyways to be holding the
host lock.

Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
5 years agoscsi: fcoe: fix a typo
Christophe JAILLET [Sun, 21 Jul 2019 12:50:39 +0000 (14:50 +0200)]
scsi: fcoe: fix a typo

#define relative to FCOE CTLR start with FCOE_CTLR, except
FCOE_CTRL_SOL_TOV.

This is likely a typo and CTRL should be CTLR here as well.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
5 years agoscsi: megaraid_sas: Make some functions static
YueHaibing [Tue, 23 Jul 2019 14:34:50 +0000 (22:34 +0800)]
scsi: megaraid_sas: Make some functions static

Fix sparse warnings:

drivers/scsi/megaraid/megaraid_sas_fusion.c:541:1: warning: symbol 'megasas_alloc_cmdlist_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:580:1: warning: symbol 'megasas_alloc_request_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:661:1: warning: symbol 'megasas_alloc_reply_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:738:1: warning: symbol 'megasas_alloc_rdpq_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:920:1: warning: symbol 'megasas_alloc_cmds_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:1740:1: warning: symbol 'megasas_init_adapter_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:1966:1: warning: symbol 'map_cmd_status' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:2379:1: warning: symbol 'megasas_set_pd_lba' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:2718:1: warning: symbol 'megasas_build_ldio_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3215:1: warning: symbol 'megasas_build_io_fusion' was not declared. Should it be static?
drivers/scsi/megaraid/megaraid_sas_fusion.c:3328:6: warning: symbol 'megasas_prepare_secondRaid1_IO' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
5 years agoscsi: megaraid_sas: fix panic on loading firmware crashdump
Junxiao Bi [Mon, 22 Jul 2019 16:15:24 +0000 (09:15 -0700)]
scsi: megaraid_sas: fix panic on loading firmware crashdump

While loading fw crashdump in function fw_crash_buffer_show(), left bytes
in one dma chunk was not checked, if copying size over it, overflow access
will cause kernel panic.

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
5 years agoscsi: megaraid_sas: fix spelling mistake "megarid_sas" -> "megaraid_sas"
Colin Ian King [Sat, 20 Jul 2019 21:58:40 +0000 (22:58 +0100)]
scsi: megaraid_sas: fix spelling mistake "megarid_sas" -> "megaraid_sas"

Fix spelling mistake in kernel warning message and replace printk with with
pr_warn.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
5 years agoMerge branch 'parisc-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Tue, 23 Jul 2019 22:34:59 +0000 (15:34 -0700)]
Merge branch 'parisc-5.3-3' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc fixes from Helge Deller:

 - Fix build issues when kprobes are enabled

 - Speed up ITLB/DTLB cache flushes when running on machines with
   combined TLBs

* 'parisc-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Flush ITLB in flush_tlb_all_local() only on split TLB machines
  parisc: add kprobe_fault_handler()

5 years agodrm/amd/display: Set enabled to false at start of audio disable
Nicholas Kazlauskas [Wed, 3 Jul 2019 14:02:39 +0000 (10:02 -0400)]
drm/amd/display: Set enabled to false at start of audio disable

[Why]
In an effort to stop redundant calls to dce110_disable_audio_stream
the audio->enabled flag was added to the audio resource struct. While
this state probably shouldn't have been tracked on the audio struct
itself it still works fine for some sequences.

However, it does not work for cases where we're freeing the audio
resource (such as hotplugs) or when dynamic audio is enabled.

In these cases the pipe_ctx->stream_res.audio = NULL before we can
set audio->enabled = false. The next time we acquire the audio resource
such as on hotplug the audio will not be enabled for the stream since
DC thinks it's still enabled.

Audio state tracking should cover this sequence.

[How]
Set audio->enabled = false at the start as long as we have
pipe_ctx->stream_res.audio.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Zhan Liu <Zhan.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
5 years agoRevert "nvme-pci: don't create a read hctx mapping without read queues"
yangerkun [Tue, 23 Jul 2019 03:23:13 +0000 (11:23 +0800)]
Revert "nvme-pci: don't create a read hctx mapping without read queues"

This reverts commit 0298d5435276e7795b0b939d74827f6e775e7009.

With this patch, set 'poll_queues > hard queues' will lead to 'nr_read_queues = 0'
in nvme_calc_irq_sets. Then poll_queues setting can fail since dev->tagset.nr_maps
equals to 2 and nvme_pci_map_queues will not do map for poll queues.

Signed-off-by: yangerkun <yangerkun@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
5 years agonvme: fix multipath crash when ANA is deactivated
Marta Rybczynska [Tue, 23 Jul 2019 05:41:20 +0000 (07:41 +0200)]
nvme: fix multipath crash when ANA is deactivated

Fix a crash with multipath activated. It happends when ANA log
page is larger than MDTS and because of that ANA is disabled.
The driver then tries to access unallocated buffer when connecting
to a nvme target. The signature is as follows:

[  300.433586] nvme nvme0: ANA log page size (8208) larger than MDTS (8192).
[  300.435387] nvme nvme0: disabling ANA support.
[  300.437835] nvme nvme0: creating 4 I/O queues.
[  300.459132] nvme nvme0: new ctrl: NQN "nqn.0.0.0", addr 10.91.0.1:8009
[  300.464609] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[  300.466342] #PF error: [normal kernel read fault]
[  300.467385] PGD 0 P4D 0
[  300.467987] Oops: 0000 [#1] SMP PTI
[  300.468787] CPU: 3 PID: 50 Comm: kworker/u8:1 Not tainted 5.0.20kalray+ #4
[  300.470264] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[  300.471532] Workqueue: nvme-wq nvme_scan_work [nvme_core]
[  300.472724] RIP: 0010:nvme_parse_ana_log+0x21/0x140 [nvme_core]
[  300.474038] Code: 45 01 d2 d8 48 98 c3 66 90 0f 1f 44 00 00 41 57 41 56 41 55 41 54 55 53 48 89 fb 48 83 ec 08 48 8b af 20 0a 00 00 48 89 34 24 <66> 83 7d 08 00 0f 84 c6 00 00 00 44 8b 7d 14 49 89 d5 8b 55 10 48
[  300.477374] RSP: 0018:ffffa50e80fd7cb8 EFLAGS: 00010296
[  300.478334] RAX: 0000000000000001 RBX: ffff9130f1872258 RCX: 0000000000000000
[  300.479784] RDX: ffffffffc06c4c30 RSI: ffff9130edad4280 RDI: ffff9130f1872258
[  300.481488] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000044
[  300.483203] R10: 0000000000000220 R11: 0000000000000040 R12: ffff9130f18722c0
[  300.484928] R13: ffff9130f18722d0 R14: ffff9130edad4280 R15: ffff9130f18722c0
[  300.486626] FS:  0000000000000000(0000) GS:ffff9130f7b80000(0000) knlGS:0000000000000000
[  300.488538] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  300.489907] CR2: 0000000000000008 CR3: 00000002365e6000 CR4: 00000000000006e0
[  300.491612] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  300.493303] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  300.494991] Call Trace:
[  300.495645]  nvme_mpath_add_disk+0x5c/0xb0 [nvme_core]
[  300.496880]  nvme_validate_ns+0x2ef/0x550 [nvme_core]
[  300.498105]  ? nvme_identify_ctrl.isra.45+0x6a/0xb0 [nvme_core]
[  300.499539]  nvme_scan_work+0x2b4/0x370 [nvme_core]
[  300.500717]  ? __switch_to_asm+0x35/0x70
[  300.501663]  process_one_work+0x171/0x380
[  300.502340]  worker_thread+0x49/0x3f0
[  300.503079]  kthread+0xf8/0x130
[  300.503795]  ? max_active_store+0x80/0x80
[  300.504690]  ? kthread_bind+0x10/0x10
[  300.505502]  ret_from_fork+0x35/0x40
[  300.506280] Modules linked in: nvme_tcp nvme_rdma rdma_cm iw_cm ib_cm ib_core nvme_fabrics nvme_core xt_physdev ip6table_raw ip6table_mangle ip6table_filter ip6_tables xt_comment iptable_nat nf_nat_ipv4 nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_CHECKSUM iptable_mangle iptable_filter veth ebtable_filter ebtable_nat ebtables iptable_raw vxlan ip6_udp_tunnel udp_tunnel sunrpc joydev pcspkr virtio_balloon br_netfilter bridge stp llc ip_tables xfs libcrc32c ata_generic pata_acpi virtio_net virtio_console net_failover virtio_blk failover ata_piix serio_raw libata virtio_pci virtio_ring virtio
[  300.514984] CR2: 0000000000000008
[  300.515569] ---[ end trace faa2eefad7e7f218 ]---
[  300.516354] RIP: 0010:nvme_parse_ana_log+0x21/0x140 [nvme_core]
[  300.517330] Code: 45 01 d2 d8 48 98 c3 66 90 0f 1f 44 00 00 41 57 41 56 41 55 41 54 55 53 48 89 fb 48 83 ec 08 48 8b af 20 0a 00 00 48 89 34 24 <66> 83 7d 08 00 0f 84 c6 00 00 00 44 8b 7d 14 49 89 d5 8b 55 10 48
[  300.520353] RSP: 0018:ffffa50e80fd7cb8 EFLAGS: 00010296
[  300.521229] RAX: 0000000000000001 RBX: ffff9130f1872258 RCX: 0000000000000000
[  300.522399] RDX: ffffffffc06c4c30 RSI: ffff9130edad4280 RDI: ffff9130f1872258
[  300.523560] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000044
[  300.524734] R10: 0000000000000220 R11: 0000000000000040 R12: ffff9130f18722c0
[  300.525915] R13: ffff9130f18722d0 R14: ffff9130edad4280 R15: ffff9130f18722c0
[  300.527084] FS:  0000000000000000(0000) GS:ffff9130f7b80000(0000) knlGS:0000000000000000
[  300.528396] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  300.529440] CR2: 0000000000000008 CR3: 00000002365e6000 CR4: 00000000000006e0
[  300.530739] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  300.531989] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  300.533264] Kernel panic - not syncing: Fatal exception
[  300.534338] Kernel Offset: 0x17c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[  300.536227] ---[ end Kernel panic - not syncing: Fatal exception ]---

Condition check refactoring from Christoph Hellwig.

Signed-off-by: Marta Rybczynska <marta.rybczynska@kalray.eu>
Tested-by: Jean-Baptiste Riaux <jbriaux@kalray.eu>
Signed-off-by: Christoph Hellwig <hch@lst.de>
5 years agonvme: fix memory leak caused by incorrect subsystem free
Logan Gunthorpe [Thu, 18 Jul 2019 23:53:50 +0000 (17:53 -0600)]
nvme: fix memory leak caused by incorrect subsystem free

When freeing the subsystem after finding another match with
__nvme_find_get_subsystem(), use put_device() instead of
__nvme_release_subsystem() which calls kfree() directly.

Per the documentation, put_device() should always be used
after device_initialization() is called. Otherwise, leaks
like the one below which was detected by kmemleak may occur.

Once the call of __nvme_release_subsystem() is removed it no
longer makes sense to keep the helper, so fold it back
into nvme_release_subsystem().

unreferenced object 0xffff8883d12bfbc0 (size 16):
  comm "nvme", pid 2635, jiffies 4294933602 (age 739.952s)
  hex dump (first 16 bytes):
    6e 76 6d 65 2d 73 75 62 73 79 73 32 00 88 ff ff  nvme-subsys2....
  backtrace:
    [<000000007d8fc208>] __kmalloc_track_caller+0x16d/0x2a0
    [<0000000081169e5f>] kvasprintf+0xad/0x130
    [<0000000025626f25>] kvasprintf_const+0x47/0x120
    [<00000000fa66ad36>] kobject_set_name_vargs+0x44/0x120
    [<000000004881f8b3>] dev_set_name+0x98/0xc0
    [<000000007124dae3>] nvme_init_identify+0x1995/0x38e0
    [<000000009315020a>] nvme_loop_configure_admin_queue+0x4fa/0x5e0
    [<000000001a63e766>] nvme_loop_create_ctrl+0x489/0xf80
    [<00000000a46ecc23>] nvmf_dev_write+0x1a12/0x2220
    [<000000002259b3d5>] __vfs_write+0x66/0x120
    [<000000002f6df81e>] vfs_write+0x154/0x490
    [<000000007e8cfc19>] ksys_write+0x10a/0x240
    [<00000000ff5c7b85>] __x64_sys_write+0x73/0xb0
    [<00000000fee6d692>] do_syscall_64+0xaa/0x470
    [<00000000997e1ede>] entry_SYSCALL_64_after_hwframe+0x49/0xbe

Fixes: ab9e00cc72fa ("nvme: track subsystems")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
5 years agonvme: ignore subnqn for ADATA SX6000LNP
Misha Nasledov [Mon, 15 Jul 2019 07:11:49 +0000 (00:11 -0700)]
nvme: ignore subnqn for ADATA SX6000LNP

The ADATA SX6000LNP NVMe SSDs have the same subnqn and, due to this, a
system with more than one of these SSDs will only have one usable.

[ 0.942706] nvme nvme1: ignoring ctrl due to duplicate subnqn (nqn.2018-05.com.example:nvme:nvm-subsystem-OUI00E04C).
[ 0.943017] nvme nvme1: Removing after probe failure status: -22

02:00.0 Non-Volatile memory controller [0108]: Realtek Semiconductor Co., Ltd. Device [10ec:5762] (rev 01)
71:00.0 Non-Volatile memory controller [0108]: Realtek Semiconductor Co., Ltd. Device [10ec:5762] (rev 01)

There are no firmware updates available from the vendor, unfortunately.
Applying the NVME_QUIRK_IGNORE_DEV_SUBNQN quirk for these SSDs resolves
the issue, and they all work after this patch:

/dev/nvme0n1     2J1120050420         ADATA SX6000LNP [...]
/dev/nvme1n1     2J1120050540         ADATA SX6000LNP [...]

Signed-off-by: Misha Nasledov <misha@nasledov.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
5 years agodma-mapping: use dma_get_mask in dma_addressing_limited
Eric Auger [Mon, 22 Jul 2019 16:51:49 +0000 (18:51 +0200)]
dma-mapping: use dma_get_mask in dma_addressing_limited

We currently have cases where the dma_addressing_limited() gets
called with dma_mask unset. This causes a NULL pointer dereference.

Use dma_get_mask() accessor to prevent the crash.

Fixes: b866455423e0 ("dma-mapping: add a dma_addressing_limited helper")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
5 years agoiommu/amd: Add support for X2APIC IOMMU interrupts
Suthikulpanit, Suravee [Tue, 16 Jul 2019 04:29:16 +0000 (04:29 +0000)]
iommu/amd: Add support for X2APIC IOMMU interrupts

AMD IOMMU requires IntCapXT registers to be setup in order to generate
its own interrupts (for Event Log, PPR Log, and GA Log) with 32-bit
APIC destination ID. Without this support, AMD IOMMU MSI interrupts
will not be routed correctly when booting the system in X2APIC mode.

Cc: Joerg Roedel <joro@8bytes.org>
Fixes: 90fcffd9cf5e ('iommu/amd: Add support for IOMMU XT mode')
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
5 years agoACPI/IORT: Fix off-by-one check in iort_dev_find_its_id()
Lorenzo Pieralisi [Mon, 22 Jul 2019 16:25:48 +0000 (17:25 +0100)]
ACPI/IORT: Fix off-by-one check in iort_dev_find_its_id()

Static analysis identified that index comparison against ITS entries in
iort_dev_find_its_id() is off by one.

Update the comparison condition and clarify the resulting error
message.

Fixes: 4bf2efd26d76 ("ACPI: Add new IORT functions to support MSI domain handling")
Link: https://lore.kernel.org/linux-arm-kernel/20190613065410.GB16334@mwanda/
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Will Deacon <will@kernel.org>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
5 years agodrbd: dynamically allocate shash descriptor
Arnd Bergmann [Mon, 22 Jul 2019 12:26:34 +0000 (14:26 +0200)]
drbd: dynamically allocate shash descriptor

Building with clang and KASAN, we get a warning about an overly large
stack frame on 32-bit architectures:

drivers/block/drbd/drbd_receiver.c:921:31: error: stack frame size of 1280 bytes in function 'conn_connect'
      [-Werror,-Wframe-larger-than=]

We already allocate other data dynamically in this function, so
just do the same for the shash descriptor, which makes up most of
this memory.

Link: https://lore.kernel.org/lkml/20190617132440.2721536-1-arnd@arndb.de/
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Roland Kammerer <roland.kammerer@linbit.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
5 years agoblock: blk-mq: Remove blk_mq_sched_started_request and started_request
Marcos Paulo de Souza [Tue, 23 Jul 2019 03:27:41 +0000 (00:27 -0300)]
block: blk-mq: Remove blk_mq_sched_started_request and started_request

blk_mq_sched_completed_request is a function that checks if the elevator
related to the request has started_request implemented, but currently, none of
the available IO schedulers implement started_request, so remove both.

Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
5 years agoALSA: ac97: Fix double free of ac97_codec_device
Ding Xiang [Tue, 23 Jul 2019 07:44:41 +0000 (15:44 +0800)]
ALSA: ac97: Fix double free of ac97_codec_device

put_device will call ac97_codec_release to free
ac97_codec_device and other resources, so remove the kfree
and other redundant code.

Fixes: 74426fbff66e ("ALSA: ac97: add an ac97 bus")
Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: compress: Be more restrictive about when a drain is allowed
Charles Keepax [Mon, 22 Jul 2019 09:24:36 +0000 (10:24 +0100)]
ALSA: compress: Be more restrictive about when a drain is allowed

Draining makes little sense in the situation of hardware overrun, as the
hardware will have consumed all its available samples. Additionally,
draining whilst the stream is paused would presumably get stuck as no
data is being consumed on the DSP side.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: compress: Don't allow paritial drain operations on capture streams
Charles Keepax [Mon, 22 Jul 2019 09:24:35 +0000 (10:24 +0100)]
ALSA: compress: Don't allow paritial drain operations on capture streams

Partial drain and next track are intended for gapless playback and
don't really have an obvious interpretation for a capture stream, so
makes sense to not allow those operations on capture streams.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: compress: Prevent bypasses of set_params
Charles Keepax [Mon, 22 Jul 2019 09:24:34 +0000 (10:24 +0100)]
ALSA: compress: Prevent bypasses of set_params

Currently, whilst in SNDRV_PCM_STATE_OPEN it is possible to call
snd_compr_stop, snd_compr_drain and snd_compr_partial_drain, which
allow a transition to SNDRV_PCM_STATE_SETUP. The stream should
only be able to move to the setup state once it has received a
SNDRV_COMPRESS_SET_PARAMS ioctl. Fix this issue by not allowing
those ioctls whilst in the open state.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agoALSA: compress: Fix regression on compressed capture streams
Charles Keepax [Mon, 22 Jul 2019 09:24:33 +0000 (10:24 +0100)]
ALSA: compress: Fix regression on compressed capture streams

A previous fix to the stop handling on compressed capture streams causes
some knock on issues. The previous fix updated snd_compr_drain_notify to
set the state back to PREPARED for capture streams. This causes some
issues however as the handling for snd_compr_poll differs between the
two states and some user-space applications were relying on the poll
failing after the stream had been stopped.

To correct this regression whilst still fixing the original problem the
patch was addressing, update the capture handling to skip the PREPARED
state rather than skipping the SETUP state as it has done until now.

Fixes: 4f2ab5e1d13d ("ALSA: compress: Fix stop handling on compressed capture streams")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
5 years agos390/kasan: add bitops instrumentation
Vasily Gorbik [Sun, 14 Jul 2019 18:49:29 +0000 (20:49 +0200)]
s390/kasan: add bitops instrumentation

Add KASAN instrumentation of architecture-specific asm implementation
of bitops. It also covers s390 specific *_inv functions.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agos390/bitops: make test functions return bool
Vasily Gorbik [Sun, 14 Jul 2019 18:49:26 +0000 (20:49 +0200)]
s390/bitops: make test functions return bool

Make s390/bitops test functions return bool values. That enforces return
value range to 0 and 1 and matches with asm-generic/bitops-instrumented.h
declarations as well as some other architectures implementations.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agos390: wire up clone3 system call
Vasily Gorbik [Sun, 14 Jul 2019 18:49:23 +0000 (20:49 +0200)]
s390: wire up clone3 system call

Tested (64-bit and compat mode) using program from
http://lkml.kernel.org/r/20190604212930.jaaztvkent32b7d3@brauner.io
with the following:
       return syscall(__NR_clone, flags, 0, pidfd, 0, 0);
changed to:
       return syscall(__NR_clone, 0, flags, pidfd, 0, 0);
due to CLONE_BACKWARDS2.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agokbuild: enable arch/s390/include/uapi/asm/zcrypt.h for uapi header test
Heiko Carstens [Mon, 22 Jul 2019 12:16:46 +0000 (14:16 +0200)]
kbuild: enable arch/s390/include/uapi/asm/zcrypt.h for uapi header test

Masahiro Yamada changed the zcrypt.h header file to use __u{16,32,64}
instead of uint{16,32,64}_t with ("s390: use __u{16,32,64} instead of
uint{16,32,64}_t in uapi header").

This makes all s390 header files pass - remove zcrypt.h from the blacklist.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agos390: use __u{16,32,64} instead of uint{16,32,64}_t in uapi header
Masahiro Yamada [Sun, 21 Jul 2019 14:20:08 +0000 (23:20 +0900)]
s390: use __u{16,32,64} instead of uint{16,32,64}_t in uapi header

When CONFIG_UAPI_HEADER_TEST=y, exported headers are compile-tested to
make sure they can be included from user-space.

Currently, zcrypt.h is excluded from the test coverage. To make it
join the compile-test, we need to fix the build errors attached below.

For a case like this, we decided to use __u{8,16,32,64} variable types
in this discussion:

  https://lkml.org/lkml/2019/6/5/18

Build log:

  CC      usr/include/asm/zcrypt.h.s
In file included from <command-line>:32:0:
./usr/include/asm/zcrypt.h:163:2: error: unknown type name ‘uint16_t’
  uint16_t cprb_len;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:168:2: error: unknown type name ‘uint32_t’
  uint32_t source_id;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:169:2: error: unknown type name ‘uint32_t’
  uint32_t target_id;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:170:2: error: unknown type name ‘uint32_t’
  uint32_t ret_code;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:171:2: error: unknown type name ‘uint32_t’
  uint32_t reserved1;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:172:2: error: unknown type name ‘uint32_t’
  uint32_t reserved2;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:173:2: error: unknown type name ‘uint32_t’
  uint32_t payload_len;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:182:2: error: unknown type name ‘uint16_t’
  uint16_t ap_id;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:183:2: error: unknown type name ‘uint16_t’
  uint16_t dom_id;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:198:2: error: unknown type name ‘uint16_t’
  uint16_t  targets_num;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:199:2: error: unknown type name ‘uint64_t’
  uint64_t  targets;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:200:2: error: unknown type name ‘uint64_t’
  uint64_t  weight;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:201:2: error: unknown type name ‘uint64_t’
  uint64_t  req_no;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:202:2: error: unknown type name ‘uint64_t’
  uint64_t  req_len;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:203:2: error: unknown type name ‘uint64_t’
  uint64_t  req;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:204:2: error: unknown type name ‘uint64_t’
  uint64_t  resp_len;
  ^~~~~~~~
./usr/include/asm/zcrypt.h:205:2: error: unknown type name ‘uint64_t’
  uint64_t  resp;
  ^~~~~~~~

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agos390/hypfs: fix a typo in the name of a function
Christophe JAILLET [Sun, 21 Jul 2019 12:33:21 +0000 (14:33 +0200)]
s390/hypfs: fix a typo in the name of a function

Everything is about hypfs_..., except 'hpyfs_vm_create_guest()'
s/hpy/hyp/

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agoMerge tag 'vfio-ccw-20190717-2' of https://git.kernel.org/pub/scm/linux/kernel/git...
Heiko Carstens [Tue, 23 Jul 2019 08:44:28 +0000 (10:44 +0200)]
Merge tag 'vfio-ccw-20190717-2' of https://git./linux/kernel/git/kvms390/vfio-ccw into fixes

Fixes in vfio-ccw for older and newer issues.

5 years agos390/qdio: restrict QAOB usage to IQD unicast queues
Julian Wiedmann [Mon, 1 Jul 2019 12:19:29 +0000 (14:19 +0200)]
s390/qdio: restrict QAOB usage to IQD unicast queues

The IQD mcast queue doesn't support QAOB mode, so skip the
qdio_enable_async_operation() setup call for this queue. This avoids
the allocation of an unneeded QAOB pointer array, and sets up q->use_cq
properly so that drivers are prohibited from using QAOBs for mcast
traffic.

Take this opportunity to streamline the q->use_cq and aob != 0 checks.
The path to qdio_siga_output() is straight-forward, we don't need to
worry about being called with bad operands.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agos390/qdio: add sanity checks to the fast-requeue path
Julian Wiedmann [Thu, 11 Jul 2019 16:17:36 +0000 (18:17 +0200)]
s390/qdio: add sanity checks to the fast-requeue path

If the device driver were to send out a full queue's worth of SBALs,
current code would end up discovering the last of those SBALs as PRIMED
and erroneously skip the SIGA-w. This immediately stalls the queue.

Add a check to not attempt fast-requeue in this case. While at it also
make sure that the state of the previous SBAL was successfully extracted
before inspecting it.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agos390: enable detection of kernel version from bzImage
Vasily Gorbik [Mon, 15 Jul 2019 13:30:33 +0000 (15:30 +0200)]
s390: enable detection of kernel version from bzImage

Extend "parmarea" to include an offset of the version string, which is
stored as 8-byte big endian value.

To retrieve version string from bzImage reliably, one should check the
presence of "S390EP" ascii string at 0x10008 (available since v3.2),
then read the version string offset from 0x10428 (which has been 0
since v3.2 up to now). The string is null terminated.

Could be retrieved with the following "file" command magic (requires
file v5.34):
8 string \x02\x00\x00\x18\x60\x00\x00\x50\x02\x00\x00\x68\x60\x00\x00\x50\x40\x40\x40\x40\x40\x40\x40\x40 Linux S390
>0x10008       string          S390EP
>>0x10428      bequad          >0
>>>(0x10428.Q) string          >\0             \b, version %s

Reported-by: Petr Tesarik <ptesarik@suse.com>
Suggested-by: Petr Tesarik <ptesarik@suse.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
5 years agoiommu/iova: Fix compilation error with !CONFIG_IOMMU_IOVA
Joerg Roedel [Tue, 23 Jul 2019 07:51:00 +0000 (09:51 +0200)]
iommu/iova: Fix compilation error with !CONFIG_IOMMU_IOVA

The stub function for !CONFIG_IOMMU_IOVA needs to be
'static inline'.

Fixes: effa467870c76 ('iommu/vt-d: Don't queue_iova() if there is no flush queue')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
5 years agocpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()
Wen Yang [Wed, 17 Jul 2019 03:55:04 +0000 (11:55 +0800)]
cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()

The cpu variable is still being used in the of_get_property() call
after the of_node_put() call, which may result in use-after-free.

Fixes: a9acc26b75f6 ("cpufreq/pasemi: fix possible object reference leak")
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
5 years agoint340X/processor_thermal_device: Fix proc_thermal_rapl_remove()
Rafael J. Wysocki [Mon, 22 Jul 2019 10:22:57 +0000 (12:22 +0200)]
int340X/processor_thermal_device: Fix proc_thermal_rapl_remove()

Passing 0 to cpuhp_remove_state() triggers the BUG_ON() in
__cpuhp_remove_state_cpuslocked() and the argument passed to
powercap_unregister_control_type() is expected to be a valid
pointer, so avoid calling these functions with incorrect
arguments from proc_thermal_rapl_remove().

Fixes: 555c45fe0d04 ("int340X/processor_thermal_device: add support for MMIO RAPL")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>