In preparation to support other family member IP, which may have
different memory layout. Drop macros and setup a configuration
struct.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Link: https://lore.kernel.org/r/20210513084717.2487366-6-rui.silva@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Since the removal of the Blackfin port with:
commit 4ba66a97 ("arch: remove blackfin port")

No one is using or referencing this header and platform data struct.
Remove them.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Link: https://lore.kernel.org/r/20210513084717.2487366-5-rui.silva@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Use io relaxed access memory primitives to satisfy strict type
checking (__force).

This will fix some existing sparse warnings:
sparse: warning: cast to restricted __le32
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Link: https://lore.kernel.org/r/20210513084717.2487366-4-rui.silva@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Rework access to registers and memory to use regmap framework.
No change in current feature or way of work is intended with this
change.

This will allow to reuse this driver with other IP of this family,
for example isp1763, with little changes and effort.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Link: https://lore.kernel.org/r/20210513084717.2487366-3-rui.silva@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

There are a lot of pre-existing typechecking warnings around the
access and assign of elements of ptd structure of __dw type.

sparse: warning: invalid assignment: |=
sparse:    left side has type restricted __dw
sparse:    right side has type unsigned int

or

warning: restricted __dw degrades to integer

or

sparse: warning: incorrect type in assignment (different base types)
sparse:    expected restricted __dw [usertype] dw4
sparse:    got unsigned int [assigned] [usertype] usof

To handle this, annotate conversions along the {TO,FROM}_DW* macros
and some assignments and function arguments.

This clean up completely all sparse warnings for this driver.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Link: https://lore.kernel.org/r/20210513084717.2487366-2-rui.silva@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix some spelling mistakes in comments:
trasfer ==> transfer
consumtion ==> consumption
endoint ==> endpoint
sharable ==> shareable
contraints ==> constraints
Auxilary ==> Auxiliary
correspondig ==> corresponding
interupt ==> interrupt
inifinite ==> infinite
assignement ==> assignment
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210517094020.7310-1-thunder.leizhen@huawei.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Use dev_err_probe() to print debug or error message depending on
whether the error value is -DPROBE_DEFER or not.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1621406386-18838-2-git-send-email-chunfeng.yun@mediatek.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

When power on system with OTG cable, IDDIG's interrupt arises before
the charger registration, it will cause a NULL pointer dereference,
fix the issue by registering the power supply before requesting
IDDIG/VBUS irq.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1621406386-18838-1-git-send-email-chunfeng.yun@mediatek.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The H616 has four PHYs as the H3, along with their respective clock
gates and resets, so the property description is identical.

However the PHYs itself need some special bits, so we need a new
compatible string for it.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210519104152.21119-9-andre.przywara@arm.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The H616 MUSB peripheral is compatible to the H3 one (8 endpoints).
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210519104152.21119-10-andre.przywara@arm.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

On start-up, we can get a spurious session request interrupt with nothing
connected. After that the devctl session bit will silently clear, but the
musb hardware is never idled until a cable is plugged in, or the glue
layer module is reloaded.

Let's just check the session bit again in 3 seconds in peripheral mode
to catch the issue.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210518150615.53464-1-tony@atomide.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Looks like we are missing suspend and resume functions for pm_ops that
are needed to idle the hardware for system suspend for 2430 glue layer.

We can rely on the driver internal PM runtime state, and call driver
functions to idle the hardware on suspend if needed. There is no need
to add a dependency to PM runtime for system suspend here.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210518074449.17070-1-tony@atomide.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit ca91fd8c ("USB: Add reset-resume quirk for
WD19's Realtek Hub"). The previous patch in the series now handles
the problematic hubs by checking the port status and handling it
accordingly when PORT_SUSPEND timeout occurs. We don't need to use
reset-resume all the time.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Link: https://lore.kernel.org/r/20210514045405.5261-3-chris.chiu@canonical.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

On the Realtek high-speed Hub(0bda:5487), the port which has wakeup
enabled_descendants will sometimes timeout when setting PORT_SUSPEND
feature. After checking the PORT_SUSPEND bit in wPortStatus, it is
already set which means the port has been suspended. We should treat
it suspended to make sure it will be resumed correctly.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Link: https://lore.kernel.org/r/20210514045405.5261-2-chris.chiu@canonical.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Make use of the struct_size() helper instead of an open-coded version,
in order to avoid any potential type mistakes or integer overflows
that, in the worse scenario, could lead to heap overflows.

This code was detected with the help of Coccinelle and, audited and
fixed manually.
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20210513193353.GA196565@embeddedorSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Constify a couple of ops-structs that are never modified, to let the
compiler put them in read-only memory.
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20210513200908.448351-1-rikard.falkeborn@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Commit e6604a7f ("EHCI: Quirk flag for port power handling
on overcurrent.") activated the quirks handling (flag need_oc_pp_cycle)
for Freescale 83xx based boards.
Activate same for 85xx based boards as well.

Cc: xe-linux-external@cisco.com
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Gopalakrishnan Santhanam <gsanthan@cisco.com>
Signed-off-by: Daniel Walker <danielwa@cisco.com>
Link: https://lore.kernel.org/r/20210513083225.68912-1-gsanthan@cisco.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

There is no need to store the dentry pointer for a debugfs file that we
only use to remove it when the device goes away.  debugfs can do the
lookup for us instead, saving us some trouble, and making things smaller
overall.

Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: linux-usb@vger.kernel.org
Acked-by: Daniel Mack <daniel@zonque.org>
Link: https://lore.kernel.org/r/20210518162054.3697992-1-gregkh@linuxfoundation.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

There is no need to store the dentry pointer for a debugfs file that we
only use to remove it when the device goes away.  debugfs can do the
lookup for us instead, saving us some trouble, and making things smaller
overall.

Cc: Felipe Balbi <balbi@kernel.org>
Cc: linux-usb@vger.kernel.org
Link: https://lore.kernel.org/r/20210518162105.3698090-1-gregkh@linuxfoundation.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

There is no need to store the dentry for a fixed filename that we have
the string for.  So just have debugfs look it up when we need it to
remove the file, no need to store it anywhere locally.

Note, this driver is broken in that debugfs will not work for more than
one instance of the device it supports.  But given that this patch does
not change that, and no one has ever seemed to notice, it must not be an
issue...

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: linux-usb@vger.kernel.org
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Felipe Balbi <balbi@kernel.org>
Link: https://lore.kernel.org/r/20210518162035.3697860-1-gregkh@linuxfoundation.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The top comment in the file wrongly uses kernel doc format:

.../typec/tcpm/wcove.c:17: warning: expecting prototype for typec_wcove.c - WhiskeyCove PMIC USB Type(). Prototype was for WCOVE_CHGRIRQ0() instead

Fix this by converting it to plain comment.

Fixes: ae8a2ca8 ("usb: typec: Group all TCPCI/TCPM code together")
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210519085527.48657-1-andriy.shevchenko@linux.intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'driver-core-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are two driver fixes for driver core changes that happened in
  5.13-rc1.

  The clk driver fix resolves a many-reported issue with booting some
  devices, and the USB typec fix resolves the reported problem of USB
  systems on some embedded boards.

  Both of these have been in linux-next this week with no reported
  issues"

* tag 'driver-core-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  clk: Skip clk provider registration when np is NULL
  usb: typec: tcpm: Don't block probing of consumers of "connector" nodes

Pull staging and IIO driver fixes from Greg KH:
 "Here are some small IIO driver fixes and one Staging driver fix for
  5.13-rc2.

  Nothing major, just some resolutions for reported problems:

   - gcc-11 bogus warning fix for rtl8723bs

   - iio driver tiny fixes

  All of these have been in linux-next for many days with no reported
  issues"

* tag 'staging-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  iio: tsl2583: Fix division by a zero lux_val
  iio: core: return ENODEV if ioctl is unknown
  iio: core: fix ioctl handlers removal
  iio: gyro: mpu3050: Fix reported temperature value
  iio: hid-sensors: select IIO_TRIGGERED_BUFFER under HID_SENSOR_IIO_TRIGGER
  iio: proximity: pulsedlight: Fix rumtime PM imbalance on error
  iio: light: gp2ap002: Fix rumtime PM imbalance on error
  staging: rtl8723bs: avoid bogus gcc warning

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for 5.13-rc2. They consist of a number
  of resolutions for reported issues:

   - typec fixes for found problems

   - xhci fixes and quirk additions

   - dwc3 driver fixes

   - minor fixes found by Coverity

   - cdc-wdm fixes for reported problems

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

* tag 'usb-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (28 commits)
  usb: core: hub: fix race condition about TRSMRCY of resume
  usb: typec: tcpm: Fix SINK_DISCOVERY current limit for Rp-default
  xhci: Add reset resume quirk for AMD xhci controller.
  usb: xhci: Increase timeout for HC halt
  xhci: Do not use GFP_KERNEL in (potentially) atomic context
  xhci: Fix giving back cancelled URBs even if halted endpoint can't reset
  xhci-pci: Allow host runtime PM as default for Intel Alder Lake xHCI
  usb: musb: Fix an error message
  usb: typec: tcpm: Fix wrong handling for Not_Supported in VDM AMS
  usb: typec: tcpm: Send DISCOVER_IDENTITY from dedicated work
  usb: typec: ucsi: Retrieve all the PDOs instead of just the first 4
  usb: fotg210-hcd: Fix an error message
  docs: usb: function: Modify path name
  usb: dwc3: omap: improve extcon initialization
  usb: typec: ucsi: Put fwnode in any case during ->probe()
  usb: typec: tcpm: Fix wrong handling in GET_SINK_CAP
  usb: dwc2: Remove obsolete MODULE_ constants from platform.c
  usb: dwc3: imx8mp: fix error return code in dwc3_imx8mp_probe()
  usb: dwc3: imx8mp: detect dwc3 core node via compatible string
  usb: dwc3: gadget: Return success always for kick transfer in ep queue
  ...

Pull timer fixes from Thomas Gleixner:
 "Two fixes for timers:

   - Use the ALARM feature check in the alarmtimer core code insted of
     the old method of checking for the set_alarm() callback.

     Drivers can have that callback set but the feature bit cleared. If
     such a RTC device is selected then alarms wont work.

   - Use a proper define to let the preprocessor check whether Hyper-V
     VDSO clocksource should be active.

     The code used a constant in an enum with #ifdef, which evaluates to
     always false and disabled the clocksource for VDSO"

* tag 'timers-urgent-2021-05-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/hyper-v: Re-enable VDSO_CLOCKMODE_HVCLOCK on X86
  alarmtimer: Check RTC features instead of ops

Pull xen fixes from Juergen Gross:

 - two patches for error path fixes

 - a small series for fixing a regression with swiotlb with Xen on Arm

* tag 'for-linus-5.13b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/swiotlb: check if the swiotlb has already been initialized
  arm64: do not set SWIOTLB_NO_FORCE when swiotlb is required
  xen/arm: move xen_swiotlb_detect to arm/swiotlb-xen.h
  xen/unpopulated-alloc: fix error return code in fill_list()
  xen/gntdev: fix gntdev_mmap() error exit path

Pull x86 fixes from Borislav Petkov:
 "The three SEV commits are not really urgent material. But we figured
  since getting them in now will avoid a huge amount of conflicts
  between future SEV changes touching tip, the kvm and probably other
  trees, sending them to you now would be best.

  The idea is that the tip, kvm etc branches for 5.14 will all base
  ontop of -rc2 and thus everything will be peachy. What is more, those
  changes are purely mechanical and defines movement so they should be
  fine to go now (famous last words).

  Summary:

   - Enable -Wundef for the compressed kernel build stage

   - Reorganize SEV code to streamline and simplify future development"

* tag 'x86_urgent_for_v5.13_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot/compressed: Enable -Wundef
  x86/msr: Rename MSR_K8_SYSCFG to MSR_AMD64_SYSCFG
  x86/sev: Move GHCB MSR protocol and NAE definitions in a common header
  x86/sev-es: Rename sev-es.{ch} to sev.{ch}

Pull powerpc fixes from Michael Ellerman:

 - Fix a regression in the conversion of the 64-bit BookE interrupt
   entry to C.

 - Fix KVM hosts running with the hash MMU since the recent KVM gfn
   changes.

 - Fix a deadlock in our paravirt spinlocks when hcall tracing is
   enabled.

 - Several fixes for oopses in our runtime code patching for security
   mitigations.

 - A couple of minor fixes for the recent conversion of 32-bit interrupt
   entry/exit to C.

 - Fix __get_user() causing spurious crashes in sigreturn due to a bad
   inline asm constraint, spotted with GCC 11.

 - A fix for the way we track IRQ masking state vs NMI interrupts when
   using the new scv system call entry path.

 - A couple more minor fixes.

Thanks to Cédric Le Goater, Christian Zigotzky, Christophe Leroy,
Naveen N. Rao, Nicholas Piggin Paul Menzel, and Sean Christopherson.

* tag 'powerpc-5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64e/interrupt: Fix nvgprs being clobbered
  powerpc/64s: Make NMI record implicitly soft-masked code as irqs disabled
  powerpc/64s: Fix stf mitigation patching w/strict RWX & hash
  powerpc/64s: Fix entry flush patching w/strict RWX & hash
  powerpc/64s: Fix crashes when toggling entry flush barrier
  powerpc/64s: Fix crashes when toggling stf barrier
  KVM: PPC: Book3S HV: Fix kvm_unmap_gfn_range_hv() for Hash MMU
  powerpc/legacy_serial: Fix UBSAN: array-index-out-of-bounds
  powerpc/signal: Fix possible build failure with unsafe_copy_fpr_{to/from}_user
  powerpc/uaccess: Fix __get_user() with CONFIG_CC_HAS_ASM_GOTO_OUTPUT
  powerpc/pseries: warn if recursing into the hcall tracing code
  powerpc/pseries: use notrace hcall variant for H_CEDE idle
  powerpc/pseries: Don't trace hcall tracing wrapper
  powerpc/pseries: Fix hcall tracing recursion in pv queued spinlocks
  powerpc/syscall: Calling kuap_save_and_lock() is wrong
  powerpc/interrupts: Fix kuep_unlock() call

Pull scheduler fixes from Ingo Molnar:
 "Fix an idle CPU selection bug, and an AMD Ryzen maximum frequency
  enumeration bug"

* tag 'sched-urgent-2021-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, sched: Fix the AMD CPPC maximum performance value on certain AMD Ryzen generations
  sched/fair: Fix clearing of has_idle_cores flag in select_idle_cpu()

Pull objtool fixes from Ingo Molnar:
 "Fix a couple of endianness bugs that crept in"

* tag 'objtool-urgent-2021-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool/x86: Fix elf_add_alternative() endianness
  objtool: Fix elf_create_undef_symbol() endianness

Pull irq fix from Ingo Molnar:
 "Fix build warning on SH"

* tag 'irq-urgent-2021-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sh: Remove unused variable

Pull x86 stack randomization fix from Ingo Molnar:
 "Fix an assembly constraint that affected LLVM up to version 12"

* tag 'core-urgent-2021-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  stack: Replace "o" output with "r" input constraint

Merge misc fixes from Andrew Morton:
 "13 patches.

  Subsystems affected by this patch series: resource, squashfs, hfsplus,
  modprobe, and mm (hugetlb, slub, userfaultfd, ksm, pagealloc, kasan,
  pagemap, and ioremap)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm/ioremap: fix iomap_max_page_shift
  docs: admin-guide: update description for kernel.modprobe sysctl
  hfsplus: prevent corruption in shrinking truncate
  mm/filemap: fix readahead return types
  kasan: fix unit tests with CONFIG_UBSAN_LOCAL_BOUNDS enabled
  mm: fix struct page layout on 32-bit systems
  ksm: revert "use GET_KSM_PAGE_NOLOCK to get ksm page in remove_rmap_item_from_tree()"
  userfaultfd: release page in error path to avoid BUG_ON
  squashfs: fix divide error in calculate_skip()
  kernel/resource: fix return code check in __request_free_mem_region
  mm, slub: move slub_debug static key enabling outside slab_mutex
  mm/hugetlb: fix cow where page writtable in child
  mm/hugetlb: fix F_SEAL_FUTURE_WRITE

Pull ARC fixes from Vineet Gupta:

 - PAE fixes

 - syscall num check off-by-one bug

 - misc fixes

* tag 'arc-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: mm: Use max_high_pfn as a HIGHMEM zone border
  ARC: mm: PAE: use 40-bit physical page mask
  ARC: entry: fix off-by-one error in syscall number validation
  ARC: kgdb: add 'fallthrough' to prevent a warning
  arc: Fix typos/spellos

Pull block fixes from Jens Axboe:

 - Fix for shared tag set exit (Bart)

 - Correct ioctl range for zoned ioctls (Damien)

 - Removed dead/unused function (Lin)

 - Fix perf regression for shared tags (Ming)

 - Fix out-of-bounds issue with kyber and preemption (Omar)

 - BFQ merge fix (Paolo)

 - Two error handling fixes for nbd (Sun)

 - Fix weight update in blk-iocost (Tejun)

 - NVMe pull request (Christoph):
      - correct the check for using the inline bio in nvmet (Chaitanya
        Kulkarni)
      - demote unsupported command warnings (Chaitanya Kulkarni)
      - fix corruption due to double initializing ANA state (me, Hou Pu)
      - reset ns->file when open fails (Daniel Wagner)
      - fix a NULL deref when SEND is completed with error in nvmet-rdma
        (Michal Kalderon)

 - Fix kernel-doc warning (Bart)

* tag 'block-5.13-2021-05-14' of git://git.kernel.dk/linux-block:
  block/partitions/efi.c: Fix the efi_partition() kernel-doc header
  blk-mq: Swap two calls in blk_mq_exit_queue()
  blk-mq: plug request for shared sbitmap
  nvmet: use new ana_log_size instead the old one
  nvmet: seset ns->file when open fails
  nbd: share nbd_put and return by goto put_nbd
  nbd: Fix NULL pointer in flush_workqueue
  blkdev.h: remove unused codes blk_account_rq
  block, bfq: avoid circular stable merges
  blk-iocost: fix weight updates of inner active iocgs
  nvmet: demote fabrics cmd parse err msg to debug
  nvmet: use helper to remove the duplicate code
  nvmet: demote discovery cmd parse err msg to debug
  nvmet-rdma: Fix NULL deref when SEND is completed with error
  nvmet: fix inline bio check for passthru
  nvmet: fix inline bio check for bdev-ns
  nvme-multipath: fix double initialization of ANA state
  kyber: fix out of bounds access when preempted
  block: uapi: fix comment about block device ioctl

Pull io_uring fixes from Jens Axboe:
 "Just a few minor fixes/changes:

   - Fix issue with double free race for linked timeout completions

   - Fix reference issue with timeouts

   - Remove last few places that make SQPOLL special, since it's just an
     io thread now.

   - Bump maximum allowed registered buffers, as we don't allocate as
     much anymore"

* tag 'io_uring-5.13-2021-05-14' of git://git.kernel.dk/linux-block:
  io_uring: increase max number of reg buffers
  io_uring: further remove sqpoll limits on opcodes
  io_uring: fix ltout double free on completion race
  io_uring: fix link timeout refs

Pull erofs fixes from Gao Xiang:
 "This mainly fixes 1 lcluster-sized pclusters for the big pcluster
  feature, which can be forcely generated by mkfs as a specific on-disk
  case for per-(sub)file compression strategies but missed to handle in
  runtime properly.

  Also, documentation updates are included to fix the broken
  illustration due to the ReST conversion by accident and complete the
  big pcluster introduction.

  Summary:

   - update documentation to fix the broken illustration due to ReST
     conversion by accident at that time and complete the big pcluster
     introduction

   - fix 1 lcluster-sized pclusters for the big pcluster feature"

* tag 'erofs-for-5.13-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: fix 1 lcluster-sized pcluster for big pcluster
  erofs: update documentation about data compression
  erofs: fix broken illustration in documentation

Pull libnvdimm fixes from Dan Williams:
 "A regression fix for a bootup crash condition introduced in this merge
  window and some other minor fixups:

   - Fix regression in ACPI NFIT table handling leading to crashes and
     driver load failures.

   - Move the nvdimm mailing list

   - Miscellaneous minor fixups"

* tag 'libnvdimm-fixes-5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  ACPI: NFIT: Fix support for variable 'SPA' structure size
  MAINTAINERS: Move nvdimm mailing list
  tools/testing/nvdimm: Make symbol '__nfit_test_ioremap' static
  libnvdimm: Remove duplicate struct declaration