Pull char/misc driver updates from Greg KH:
 "Here is the big set of char and misc and other tiny driver subsystem
  updates for 5.16-rc1.

  Loads of things in here, all of which have been in linux-next for a
  while with no reported problems (except for one called out below.)

  Included are:

   - habanana labs driver updates, including dma_buf usage, reviewed and
     acked by the dma_buf maintainers

   - iio driver update (going through this tree not staging as they
     really do not belong going through that tree anymore)

   - counter driver updates

   - hwmon driver updates that the counter drivers needed, acked by the
     hwmon maintainer

   - xillybus driver updates

   - binder driver updates

   - extcon driver updates

   - dma_buf module namespaces added (will cause a build error in arm64
     for allmodconfig, but that change is on its way through the drm
     tree)

   - lkdtm driver updates

   - pvpanic driver updates

   - phy driver updates

   - virt acrn and nitr_enclaves driver updates

   - smaller char and misc driver updates"

* tag 'char-misc-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (386 commits)
  comedi: dt9812: fix DMA buffers on stack
  comedi: ni_usb6501: fix NULL-deref in command paths
  arm64: errata: Enable TRBE workaround for write to out-of-range address
  arm64: errata: Enable workaround for TRBE overwrite in FILL mode
  coresight: trbe: Work around write to out of range
  coresight: trbe: Make sure we have enough space
  coresight: trbe: Add a helper to determine the minimum buffer size
  coresight: trbe: Workaround TRBE errata overwrite in FILL mode
  coresight: trbe: Add infrastructure for Errata handling
  coresight: trbe: Allow driver to choose a different alignment
  coresight: trbe: Decouple buffer base from the hardware base
  coresight: trbe: Add a helper to pad a given buffer area
  coresight: trbe: Add a helper to calculate the trace generated
  coresight: trbe: Defer the probe on offline CPUs
  coresight: trbe: Fix incorrect access of the sink specific data
  coresight: etm4x: Add ETM PID for Kryo-5XX
  coresight: trbe: Prohibit trace before disabling TRBE
  coresight: trbe: End the AUX handle on truncation
  coresight: trbe: Do not truncate buffer on IRQ
  coresight: trbe: Fix handling of spurious interrupts
  ...

Pull media updates from Mauro Carvalho Chehab:

 - New driver for SK Hynix Hi-846 8M pixel camera

 - New driver for the ov13b10 camera

 - New driver for Renesas R-Car ISP

 - mtk-vcodec gained support for version 2 of decoder firmware ABI

 - The legacy sir_ir driver got removed

 - videobuf2: the vb2_mem_ops kAPI had some improvements

 - lots of cleanups, fixes and new features at device drivers

* tag 'media/v5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (328 commits)
  media: venus: core: Add sdm660 DT compatible and resource struct
  media: dt-bindings: media: venus: Add sdm660 dt schema
  media: venus: vdec: decoded picture buffer handling during reconfig sequence
  media: venus: Handle fatal errors during encoding and decoding
  media: venus: helpers: Add helper to mark fatal vb2 error
  media: venus: hfi: Check for sys error on session hfi functions
  media: venus: Make sys_error flag an atomic bitops
  media: venus: venc: Use pmruntime autosuspend
  media: allegro: write vui parameters for HEVC
  media: allegro: nal-hevc: implement generator for vui
  media: allegro: write correct colorspace into SPS
  media: allegro: extract nal value lookup functions to header
  media: allegro: correctly scale the bit rate in SPS
  media: allegro: remove external QP table
  media: allegro: fix row and column in response message
  media: allegro: add control to disable encoder buffer
  media: allegro: add encoder buffer support
  media: allegro: add pm_runtime support
  media: allegro: lookup VCU settings
  media: allegro: fix module removal if initialization failed
  ...

Pull locking updates from Thomas Gleixner:

 - Move futex code into kernel/futex/ and split up the kitchen sink into
   seperate files to make integration of sys_futex_waitv() simpler.

 - Add a new sys_futex_waitv() syscall which allows to wait on multiple
   futexes.

   The main use case is emulating Windows' WaitForMultipleObjects which
   allows Wine to improve the performance of Windows Games. Also native
   Linux games can benefit from this interface as this is a common wait
   pattern for this kind of applications.

 - Add context to ww_mutex_trylock() to provide a path for i915 to
   rework their eviction code step by step without making lockdep upset
   until the final steps of rework are completed. It's also useful for
   regulator and TTM to avoid dropping locks in the non contended path.

 - Lockdep and might_sleep() cleanups and improvements

 - A few improvements for the RT substitutions.

 - The usual small improvements and cleanups.

* tag 'locking-core-2021-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
  locking: Remove spin_lock_flags() etc
  locking/rwsem: Fix comments about reader optimistic lock stealing conditions
  locking: Remove rcu_read_{,un}lock() for preempt_{dis,en}able()
  locking/rwsem: Disable preemption for spinning region
  docs: futex: Fix kernel-doc references
  futex: Fix PREEMPT_RT build
  futex2: Documentation: Document sys_futex_waitv() uAPI
  selftests: futex: Test sys_futex_waitv() wouldblock
  selftests: futex: Test sys_futex_waitv() timeout
  selftests: futex: Add sys_futex_waitv() test
  futex,arm: Wire up sys_futex_waitv()
  futex,x86: Wire up sys_futex_waitv()
  futex: Implement sys_futex_waitv()
  futex: Simplify double_lock_hb()
  futex: Split out wait/wake
  futex: Split out requeue
  futex: Rename mark_wake_futex()
  futex: Rename: match_futex()
  futex: Rename: hb_waiter_{inc,dec,pending}()
  futex: Split out PI futex
  ...

Pull CDROM updates from Jens Axboe:
 "On behalf of Phillip, here are the CDROM updates for the 5.16-rc1
  merge window:

   - Add ioctl for improved media change detection (Lukas)

   - Reformat some documentation (Phillip)

   - Redundant variable removal (luo)"

* tag 'for-5.16/cdrom-2021-10-29' of git://git.kernel.dk/linux-block:
  cdrom: Remove redundant variable and its assignment
  cdrom: docs: reformat table in Documentation/userspace-api/ioctl/cdrom.rst
  drivers/cdrom: improved ioctl for media change detection

Add PTP_CLK_MAGIC to the userspace-api/ioctl/ioctl-number.rst
documentation file.

Fixes: d94ba80ebbea ("ptp: Added a brand new class driver for ptp clocks.")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20211024163831.10200-1-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Jonathan writes:

First set of counter subsystem new feature support for the 5.16 cycle

Most interesting element this time is the new chrdev based interface
for the counter subsystem.  Affects all drivers. Some minor precursor
patches.

Major parts:
* Bring all the sysfs attribute setup into the counter core rather than
  leaving it to individual drivers.  Docs updates accompany these changes.
* Move various definitions to a uapi header as now needed from userspace.
* Add the chardev interface + extensive documentation and example tool
* Add new ABI needed to identify indexes needed for chrdev interface
* Implement new interface for the 104-quad-8
* Follow up deals with wrong path for documentation build
* Various trivial cleanups and missing feature additions related to this
  series

* tag 'counter-for-5.16a-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  docs: counter: Include counter-chrdev kernel-doc to generic-counter.rst
  counter: fix docum. build problems after filename change
  counter: microchip-tcb-capture: Tidy up a false kernel-doc /** marking.
  counter: 104-quad-8: Add IRQ support for the ACCES 104-QUAD-8
  counter: 104-quad-8: Replace mutex with spinlock
  counter: Implement events_queue_size sysfs attribute
  counter: Implement *_component_id sysfs attributes
  counter: Implement signalZ_action_component_id sysfs attribute
  tools/counter: Create Counter tools
  docs: counter: Document character device interface
  counter: Add character device interface
  counter: Move counter enums to uapi header
  docs: counter: Update to reflect sysfs internalization
  counter: Update counter.h comments to reflect sysfs internalization
  counter: Internalize sysfs interface code
  counter: stm32-timer-cnt: Provide defines for slave mode selection
  counter: stm32-lptimer-cnt: Provide defines for clock polarities

This patch adds high-level documentation about the Counter subsystem
character device interface.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/7a71dff2868195901d074ae2ec1b5611838d4b24.1632884256.git.vilhelm.gray@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Fix a VDUSE documentation build warning:

Documentation/userspace-api/vduse.rst:21: WARNING: Title underline too short.

Fixes: 7bc7f61897b6 ("Documentation: Add documentation for VDUSE")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Xie Yongji <xieyongji@bytedance.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20211006202904.30241-1-rdunlap@infradead.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>

Add extra space to the first column of ioctl values table, and also realign
the text in the second column, to fix a documentation build warning
introduced by: commit 67f1e027c270 ("drivers/cdrom: improved ioctl for
media change detection")

Suggested-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 67f1e027c270 ("drivers/cdrom: improved ioctl for media change detection")
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20211007231720.31997-1-phil@philpotter.co.uk
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Create userspace documentation for futex_waitv() syscall, detailing how
the arguments are used.

Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210923171111.300673-23-andrealmeid@collabora.com