This reverts commit 6f98a4bf.

It turns out we still can't do this.  Way too many platforms that don't
have any real source of randomness at boot and no jitter entropy because
they don't even have a cycle counter.

As reported by Guenter Roeck:

 "This causes a large number of qemu boot test failures for various
  architectures (arm, m68k, microblaze, sparc32, xtensa are the ones I
  observed).

  Common denominator is that boot hangs at 'Saving random seed:'"

This isn't hugely unexpected - we tried it, it failed, so now we'll
revert it.

Link: https://lore.kernel.org/all/20220322155820.GA1745955@roeck-us.net/Reported-and-bisected-by: Guenter Roeck <linux@roeck-us.net>
Cc: Jason Donenfeld <Jason@zx2c4.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull audit update from Paul Moore:
 "Just one audit patch queued for v5.18:

   - Change the AUDIT_TIME_* record generation so that they are
     generated at syscall exit time and subject to all of the normal
     syscall exit filtering.

     This should help reduce noise and ensure those records which are
     most relevant to the admin's audit configuration are recorded in
     the audit log"

* tag 'audit-pr-20220321' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: log AUDIT_TIME_* records only from rules

Pull selinux updates from Paul Moore:
 "We've got a number of SELinux patches queued up, the highlights are:

   - Fixup the security_fs_context_parse_param() LSM hook so it executes
     all of the LSM hook implementations unless a serious error occurs.

     We also correct the SELinux hook implementation so that it returns
     zero on success.

   - In addition to a few SELinux mount option parsing fixes, we
     simplified the parsing by moving it earlier in the process.

     The logic was that it was unlikely an admin/user would use the new
     mount API and not have the policy loaded before passing the SELinux
     options.

   - Properly fixed the LSM/SELinux/SCTP hooks with the addition of the
     security_sctp_assoc_established() hook.

     This work was done in conjunction with the netdev folks and should
     complete the move of the SCTP labeling from the endpoints to the
     associations.

   - Fixed a variety of sparse warnings caused by changes in the "__rcu"
     markings of some core kernel structures.

   - Ensure we access the superblock's LSM security blob using the
     stacking-safe accessors.

   - Added the ability for the kernel to always allow FIOCLEX and
     FIONCLEX if the "ioctl_skip_cloexec" policy capability is
     specified.

   - Various constifications improvements, type casting improvements,
     additional return value checks, and dead code/parameter removal.

   - Documentation fixes"

* tag 'selinux-pr-20220321' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: (23 commits)
  selinux: shorten the policy capability enum names
  docs: fix 'make htmldocs' warning in SCTP.rst
  selinux: allow FIOCLEX and FIONCLEX with policy capability
  selinux: use correct type for context length
  selinux: drop return statement at end of void functions
  security: implement sctp_assoc_established hook in selinux
  security: add sctp_assoc_established hook
  selinux: parse contexts for mount options early
  selinux: various sparse fixes
  selinux: try to use preparsed sid before calling parse_sid()
  selinux: Fix selinux_sb_mnt_opts_compat()
  LSM: general protection fault in legacy_parse_param
  selinux: fix a type cast problem in cred_init_security()
  selinux: drop unused macro
  selinux: simplify cred_init_security
  selinux: do not discard const qualifier in cast
  selinux: drop unused parameter of avtab_insert_node
  selinux: drop cast to same type
  selinux: enclose macro arguments in parenthesis
  selinux: declare name parameter of hash_eval const
  ...

Pull integrity subsystem updates from Mimi Zohar:
 "Except for extending the 'encrypted' key type to support user provided
  data, the rest is code cleanup, __setup() usage bug fix, and a trivial
  change"

* tag 'integrity-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  MAINTAINERS: add missing security/integrity/platform_certs
  EVM: fix the evm= __setup handler return value
  KEYS: encrypted: Instantiate key with user-provided decrypted data
  ima: define ima_max_digest_data struct without a flexible array variable
  ima: rename IMA_ACTION_FLAGS to IMA_NONACTION_FLAGS
  ima: Return error code obtained from securityfs functions
  MAINTAINERS: add missing "security/integrity" directory
  ima: Fix trivial typos in the comments

Pull smack update from Casey Schaufler:
 "A single fix to repair an incorrect use of ntohs() in IPv6 audit code.
  It's very minor and went unnoticed until lkp found it.

  It's been in next and passes all tests"

* tag 'Smack-for-5.18' of https://github.com/cschaufler/smack-next:
  Fix incorrect type in assignment of ipv6 port for audit

Pull watch_queue fixes from David Howells:
 "Here are fixes for a couple more watch_queue bugs, both found by syzbot:

   - Fix error cleanup in watch_queue_set_size() where it tries to clean
     up all the pointers in the page list, even if they've not been
     allocated yet[1]. Unfortunately, __free_page() doesn't treat a NULL
     pointer as being "do nothing".

     A second report[2] looks like it's probably the same bug, but on
     arm64 rather than x86_64, but there's no reproducer.

   - Fix a missing kfree in free_watch() to actually free the watch[3]"

Link: https://lore.kernel.org/r/000000000000b1807c05daad8f98@google.com/ [1]
Link: https://lore.kernel.org/r/000000000000035b9c05daae8a5e@google.com/ [2]
Link: https://lore.kernel.org/r/000000000000bc8eaf05dab91c63@google.com/ [3]

* 'keys-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  watch_queue: Actually free the watch
  watch_queue: Fix NULL dereference in error cleanup

Pull bounds fixes from Kees Cook:
 "These are a handful of buffer and array bounds fixes that I've been
  carrying in preparation for the coming memcpy improvements and the
  enabling of '-Warray-bounds' globally.

  There are additional similar fixes in other maintainer's trees, but
  these ended up getting carried by me. :)"

* tag 'bounds-fixes-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  media: omap3isp: Use struct_group() for memcpy() region
  tpm: vtpm_proxy: Check length to avoid compiler warning
  alpha: Silence -Warray-bounds warnings
  m68k: cmpxchg: Dereference matching size
  intel_th: msu: Use memset_startat() for clearing hw header
  KVM: x86: Replace memset() "optimization" with normal per-field writes

Pull overflow updates from Kees Cook:
 "These changes come in roughly two halves: support of Gustavo A. R.
  Silva's struct_size() work via additional helpers for catching
  overflow allocation size calculations, and conversions of selftests to
  KUnit (which includes some tweaks for UML + Clang):

   - Convert overflow selftest to KUnit

   - Convert stackinit selftest to KUnit

   - Implement size_t saturating arithmetic helpers

   - Allow struct_size() to be used in initializers"

* tag 'overflow-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  lib: stackinit: Convert to KUnit
  um: Allow builds with Clang
  lib: overflow: Convert to Kunit
  overflow: Provide constant expression struct_size
  overflow: Implement size_t saturating arithmetic helpers
  test_overflow: Regularize test reporting output

Pull kernel hardening updates from Kees Cook:

 - Add arm64 Shadow Call Stack support for GCC 12 (Dan Li)

 - Avoid memset with stack offset randomization under Clang (Marco
   Elver)

 - Clean up stackleak plugin to play nice with .noinstr (Kees Cook)

 - Check stack depth for greater usercopy hardening coverage (Kees Cook)

* tag 'hardening-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  arm64: Add gcc Shadow Call Stack support
  m68k: Implement "current_stack_pointer"
  xtensa: Implement "current_stack_pointer"
  usercopy: Check valid lifetime via stack depth
  stack: Constrain and fix stack offset randomization with Clang builds
  stack: Introduce CONFIG_RANDOMIZE_KSTACK_OFFSET
  gcc-plugins/stackleak: Ignore .noinstr.text and .entry.text
  gcc-plugins/stackleak: Exactly match strings instead of prefixes
  gcc-plugins/stackleak: Provide verbose mode

Pull pstore updates from Kees Cook:

 - Don't use semaphores in always-atomic-context code (Jann Horn)

 - Add "ECC:" prefix to ECC messages (Vincent Whitchurch)

* tag 'pstore-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  pstore: Don't use semaphores in always-atomic-context code
  pstore: Add prefix to ECC messages

Pull execve updates from Kees Cook:
 "Execve and binfmt updates.

  Eric and I have stepped up to be the active maintainers of this area,
  so here's our first collection. The bulk of the work was in coredump
  handling fixes; additional details are noted below:

   - Handle unusual AT_PHDR offsets (Akira Kawata)

   - Fix initial mapping size when PT_LOADs are not ordered (Alexey
     Dobriyan)

   - Move more code under CONFIG_COREDUMP (Alexey Dobriyan)

   - Fix missing mmap_lock in file_files_note (Eric W. Biederman)

   - Remove a.out support for alpha and m68k (Eric W. Biederman)

   - Include first pages of non-exec ELF libraries in coredump (Jann
     Horn)

   - Don't write past end of notes for regset gap in coredump (Rick
     Edgecombe)

   - Comment clean-ups (Tom Rix)

   - Force single empty string when argv is empty (Kees Cook)

   - Add NULL argv selftest (Kees Cook)

   - Properly redefine PT_GNU_* in terms of PT_LOOS (Kees Cook)

   - MAINTAINERS: Update execve entry with tree (Kees Cook)

   - Introduce initial KUnit testing for binfmt_elf (Kees Cook)"

* tag 'execve-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  binfmt_elf: Don't write past end of notes for regset gap
  a.out: Stop building a.out/osf1 support on alpha and m68k
  coredump: Don't compile flat_core_dump when coredumps are disabled
  coredump: Use the vma snapshot in fill_files_note
  coredump/elf: Pass coredump_params into fill_note_info
  coredump: Remove the WARN_ON in dump_vma_snapshot
  coredump: Snapshot the vmas in do_coredump
  coredump: Move definition of struct coredump_params into coredump.h
  binfmt_elf: Introduce KUnit test
  ELF: Properly redefine PT_GNU_* in terms of PT_LOOS
  MAINTAINERS: Update execve entry with more details
  exec: cleanup comments
  fs/binfmt_elf: Refactor load_elf_binary function
  fs/binfmt_elf: Fix AT_PHDR for unusual ELF files
  binfmt: move more stuff undef CONFIG_COREDUMP
  selftests/exec: Test for empty string on NULL argv
  exec: Force single empty string when argv is empty
  coredump: Also dump first pages of non-executable ELF libraries
  ELF: fix overflow in total mapping size calculation

Pull spi updates from Mark Brown:
 "The overwhelming bulk of this pull request is a change from Uwe
  Kleine-König which changes the return type of the remove() function to
  void as part of some wider work he's doing to do this for all bus
  types, causing updates to most SPI device drivers. The branch with
  that on has been cross merged with a couple of other trees which added
  new SPI drivers this cycle, I'm not expecting any build issues
  resulting from the change.

  Otherwise it's been a relatively quiet release with some new device
  support, a few minor features and the welcome completion of the
  conversion of the subsystem to use GPIO descriptors rather than
  numbers:

   - Change return type of remove() to void.

   - Completion of the conversion of SPI controller drivers to use GPIO
     descriptors rather than numbers.

   - Quite a few DT schema conversions.

   - Support for multiple SPI devices on a bus in ACPI systems.

   - Big overhaul of the PXA2xx SPI driver.

   - Support for AMD AMDI0062, Intel Raptor Lake, Mediatek MT7986 and
     MT8186, nVidia Tegra210 and Tegra234, Renesas RZ/V2L, Tesla FSD and
     Sunplus SP7021"

[ And this is obviously where that spi change that snuck into the
  regulator tree _should_ have been :^]

* tag 'spi-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (124 commits)
  spi: fsi: Implement a timeout for polling status
  spi: Fix erroneous sgs value with min_t()
  spi: tegra20: Use of_device_get_match_data()
  spi: mediatek: add ipm design support for MT7986
  spi: Add compatible for MT7986
  spi: sun4i: fix typos in comments
  spi: mediatek: support tick_delay without enhance_timing
  spi: Update clock-names property for arm pl022
  spi: rockchip-sfc: fix platform_get_irq.cocci warning
  spi: s3c64xx: Add spi port configuration for Tesla FSD SoC
  spi: dt-bindings: samsung: Add fsd spi compatible
  spi: topcliff-pch: Prevent usage of potentially stale DMA device
  spi: tegra210-quad: combined sequence mode
  spi: tegra210-quad: add acpi support
  spi: npcm-fiu: Fix typo ("npxm")
  spi: Fix Tegra QSPI example
  spi: qup: replace spin_lock_irqsave by spin_lock in hard IRQ
  spi: cadence: fix platform_get_irq.cocci warning
  spi: Update NXP Flexspi maintainer details
  dt-bindings: mfd: maxim,max77802: Convert to dtschema
  ...

Pull regulator updates from Mark Brown:
 "Quite a quiet release for the regulator API, mainly a few new drivers
  plus a lot of fixes for the Raspberry Pi panel driver.

  There's also a SPI commit in here which I managed to apply to the
  wrong tree and then didn't notice until there were too many commits on
  top of it, sorry about that.

   - Make it easier to use the virtual consumer test driver with DT
     systems.

   - Substantial overhaul providing various fixes and robustness
     improvements for the Raspberry Pi panel driver.

   - Support for Qualcomm PMX65 and SDX65, Richtek RT5190A, and Texas
     Instruments TPS62864x"

* tag 'regulator-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (26 commits)
  regulator: qcom-rpmh: Add support for SDX65
  regulator: dt-bindings: Add PMX65 compatibles
  regulator: vctrl: Use min() instead of doing it manually
  regulator: rt5190a: Add support for Richtek RT5190A PMIC
  regulator: Add bindings for Richtek RT5190A PMIC
  regulator: Convert TPS62360 binding to json-schema
  regulator: cleanup comments
  regulator: virtual: add devicetree support
  regulator: virtual: warn against production use
  regulator: virtual: use dev_err_probe()
  regulator: tps62864: Fix bindings for SW property
  regulator: Add support for TPS6286x
  regulator: Add bindings for TPS62864x
  regulator/rpi-panel-attiny: Use two transactions for I2C read
  regulator/rpi-panel-attiny: Use the regmap cache
  regulator: rpi-panel: Remove get_brightness hook
  regulator: rpi-panel: Add GPIO control for panel and touch resets
  regulator: rpi-panel: Convert to drive lines directly
  regulator: rpi-panel: Ensure the backlight is off during probe.
  regulator: rpi-panel: Serialise operations.
  ...

Pull regmap updates from Mark Brown:
 "A couple of small fixes, plus some new features that enable us to
  handle devices that reformat register addresses depending on the bus
  used to handle the control interface more gracefully"

* tag 'regmap-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: allow a defined reg_base to be added to every address
  regmap: add configurable downshift for addresses
  regmap: irq: cleanup comments
  regmap-irq: Fix typo in comment

Pull hwmon updates from Guenter Roeck:
 "New drivers:

   - Texas Instruments TMP464 and TMP468 driver

   - Vicor PLI1209BC Digital Supervisor driver

   - ASUS EC driver

  Improvements to existing drivers:

   - adt7x10:
       - Convert to use regmap
       - convert to use with_info API
       - use hwmon_notify_event
       - other cleanup

   - aquacomputer_d5next:
       - Add support for Aquacomputer Farbwerk 360

   - asus_wmi_sensors:
       - Add ASUS ROG STRIX B450-F GAMING II

   - asus_wmi_ec_sensors:
       - Support T_Sensor on Prime X570-Pro
       - Deprecate driver (replaced by new driver)

   - axi-fan-control:
       - Use hwmon_notify_event

   - dell-smm:
       - Clean up CONFIG_I8K
       - disable fan type support for Inspiron 3505
       - various other cleanup

   - hwmon core:
       - Report attribute name with udev events
       - Add "label" attribute to ABI,
       - Add support for pwm auto channels attribute

   - max6639:
       - Add regulator support

   - lm70:
       - Add support for TI TMP125

   - lm83:
       - Cleanup, convert to use with_info API

   - mlxreg-fan:
       - Use pwm attribute for setting fan speed low limit

   - nct6775:
       - Add board ID's for ASUS ROG STRIX Z390/Z490/X570-* / PRIME
         X570-P, PRIME B550-PLUS, ASUS Pro B550M-C/PRIME B550M-A
       - Add support for TSI temperature registers

   - occ:
       - Add various new sysfs attributes

   - pmbus core:
       - Handle VIN unit off status
       - Add regulator supply into macro
       - Add get_error_flags support to regulator ops

   - pmbus/adm1275:
       - Allow setting sample averaging

   - pmbus/lm25066:
       - Add regulator support

   - pmbus/xdpe12284:
       - Add support for xdpe11280
       - register as regulator

   - powr1220:
       - Convert to with_info API
       - Add support for Lattice's POWR1014 power manager IC

   - sch56xx:
       - Cleanup and minor improvements

   - sch5627:
       - Add pwmX_auto_channels_temp support

   - tc654:
       - Add thermal_cooling device support"

* tag 'hwmon-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (86 commits)
  hwmon: (dell-smm) Add Inspiron 3505 to fan type blacklist
  hwmon: (pmbus) Add Vin unit off handling
  hwmon: (scpi-hwmon): Use of_device_get_match_data()
  hwmon: (axi-fan-control) Use hwmon_notify_event
  hwmon: (vexpress-hwmon) Use of_device_get_match_data()
  hwmon: Add driver for Texas Instruments TMP464 and TMP468
  dt-bindings: hwmon: add tmp464.yaml
  dt-bindings: hwmon: Add sample averaging properties for ADM1275
  hwmon: (adm1275) Allow setting sample averaging
  hwmon: (xdpe12284) Add regulator support
  hwmon: (xdpe12284) Add support for xdpe11280
  dt-bindings: trivial-devices: Add xdpe11280
  hwmon: (aquacomputer_d5next) Add support for Aquacomputer Farbwerk 360
  hwmon: (sch5627) Add pwmX_auto_channels_temp support
  hwmon: (core) Add support for pwm auto channels attribute
  hwmon: (lm70) Add ti,tmp125 support
  dt-bindings: Add ti,tmp125 temperature sensor binding
  hwmon: (pmbus/pli1209bc) Add regulator support
  hwmon: (pmbus) Add support for pli1209bc
  dt-bindings:trivial-devices: Add pli1209bc
  ...

Pull bio_alloc() cleanups from Jens Axboe:
 "Filesystem cleanups to pass the bio op to bio_alloc() instead of
  setting it just before bio submission".

* tag 'for-5.18/alloc-cleanups-2022-03-18' of git://git.kernel.dk/linux-block:
  f2fs: pass the bio operation to bio_alloc_bioset
  f2fs: don't pass a bio to f2fs_target_device
  nilfs2: pass the operation to bio_alloc
  ext4: pass the operation to bio_alloc
  mpage: pass the operation to bio_alloc

Pull block driver updates from Jens Axboe:

 - NVMe updates via Christoph:
      - add vectored-io support for user-passthrough (Kanchan Joshi)
      - add verbose error logging (Alan Adamson)
      - support buffered I/O on block devices in nvmet (Chaitanya
        Kulkarni)
      - central discovery controller support (Martin Belanger)
      - fix and extended the globally unique idenfier validation
        (Christoph)
      - move away from the deprecated IDA APIs (Sagi Grimberg)
      - misc code cleanup (Keith Busch, Max Gurtovoy, Qinghua Jin,
        Chaitanya Kulkarni)
      - add lockdep annotations for in-kernel sockets (Chris Leech)
      - use vmalloc for ANA log buffer (Hannes Reinecke)
      - kerneldoc fixes (Chaitanya Kulkarni)
      - cleanups (Guoqing Jiang, Chaitanya Kulkarni, Christoph)
      - warn about shared namespaces without multipathing (Christoph)

 - MD updates via Song with a set of cleanups (Christoph, Mariusz, Paul,
   Erik, Dirk)

 - loop cleanups and queue depth configuration (Chaitanya)

 - null_blk cleanups and fixes (Chaitanya)

 - Use descriptive init/exit names in virtio_blk (Randy)

 - Use bvec_kmap_local() in drivers (Christoph)

 - bcache fixes (Mingzhe)

 - xen blk-front persistent grant speedups (Juergen)

 - rnbd fix and cleanup (Gioh)

 - Misc fixes (Christophe, Colin)

* tag 'for-5.18/drivers-2022-03-18' of git://git.kernel.dk/linux-block: (76 commits)
  virtio_blk: eliminate anonymous module_init & module_exit
  nvme: warn about shared namespaces without CONFIG_NVME_MULTIPATH
  nvme: remove nvme_alloc_request and nvme_alloc_request_qid
  nvme: cleanup how disk->disk_name is assigned
  nvmet: move the call to nvmet_ns_changed out of nvmet_ns_revalidate
  nvmet: use snprintf() with PAGE_SIZE in configfs
  nvmet: don't fold lines
  nvmet-rdma: fix kernel-doc warning for nvmet_rdma_device_removal
  nvmet-fc: fix kernel-doc warning for nvmet_fc_unregister_targetport
  nvmet-fc: fix kernel-doc warning for nvmet_fc_register_targetport
  nvme-tcp: lockdep: annotate in-kernel sockets
  nvme-tcp: don't fold the line
  nvme-tcp: don't initialize ret variable
  nvme-multipath: call bio_io_error in nvme_ns_head_submit_bio
  nvme-multipath: use vmalloc for ANA log buffer
  xen/blkfront: speed up purge_persistent_grants()
  raid5: initialize the stripe_head embeeded bios as needed
  raid5-cache: statically allocate the recovery ra bio
  raid5-cache: fully initialize flush_bio when needed
  raid5-ppl: fully initialize the bio in ppl_new_iounit
  ...

Pull block updates from Jens Axboe:

 - BFQ cleanups and fixes (Yu, Zhang, Yahu, Paolo)

 - blk-rq-qos completion fix (Tejun)

 - blk-cgroup merge fix (Tejun)

 - Add offline error return value to distinguish it from an IO error on
   the device (Song)

 - IO stats fixes (Zhang, Christoph)

 - blkcg refcount fixes (Ming, Yu)

 - Fix for indefinite dispatch loop softlockup (Shin'ichiro)

 - blk-mq hardware queue management improvements (Ming)

 - sbitmap dead code removal (Ming, John)

 - Plugging merge improvements (me)

 - Show blk-crypto capabilities in sysfs (Eric)

 - Multiple delayed queue run improvement (David)

 - Block throttling fixes (Ming)

 - Start deprecating auto module loading based on dev_t (Christoph)

 - bio allocation improvements (Christoph, Chaitanya)

 - Get rid of bio_devname (Christoph)

 - bio clone improvements (Christoph)

 - Block plugging improvements (Christoph)

 - Get rid of genhd.h header (Christoph)

 - Ensure drivers use appropriate flush helpers (Christoph)

 - Refcounting improvements (Christoph)

 - Queue initialization and teardown improvements (Ming, Christoph)

 - Misc fixes/improvements (Barry, Chaitanya, Colin, Dan, Jiapeng,
   Lukas, Nian, Yang, Eric, Chengming)

* tag 'for-5.18/block-2022-03-18' of git://git.kernel.dk/linux-block: (127 commits)
  block: cancel all throttled bios in del_gendisk()
  block: let blkcg_gq grab request queue's refcnt
  block: avoid use-after-free on throttle data
  block: limit request dispatch loop duration
  block/bfq-iosched: Fix spelling mistake "tenative" -> "tentative"
  sr: simplify the local variable initialization in sr_block_open()
  block: don't merge across cgroup boundaries if blkcg is enabled
  block: fix rq-qos breakage from skipping rq_qos_done_bio()
  block: flush plug based on hardware and software queue order
  block: ensure plug merging checks the correct queue at least once
  block: move rq_qos_exit() into disk_release()
  block: do more work in elevator_exit
  block: move blk_exit_queue into disk_release
  block: move q_usage_counter release into blk_queue_release
  block: don't remove hctx debugfs dir from blk_mq_exit_queue
  block: move blkcg initialization/destroy into disk allocation/release handler
  sr: implement ->free_disk to simplify refcounting
  sd: implement ->free_disk to simplify refcounting
  sd: delay calling free_opal_dev
  sd: call sd_zbc_release_disk before releasing the scsi_device reference
  ...

Pull io_uring statx fixes from Jens Axboe:
 "On top of the main io_uring branch, this is to ensure that the
  filename component of statx is stable after submit.

  That requires a few VFS related changes"

* tag 'for-5.18/io_uring-statx-2022-03-18' of git://git.kernel.dk/linux-block:
  io-uring: Make statx API stable

Pull io_uring updates from Jens Axboe:

 - Fixes for current file position. Still doesn't have the f_pos_lock
   sorted, but it's a step in the right direction (Dylan)

 - Tracing updates (Dylan, Stefan)

 - Improvements to io-wq locking (Hao)

 - Improvements for provided buffers (me, Pavel)

 - Support for registered file descriptors (me, Xiaoguang)

 - Support for ring messages (me)

 - Poll improvements (me)

 - Fix for fixed buffers and non-iterator reads/writes (me)

 - Support for NAPI on sockets (Olivier)

 - Ring quiesce improvements (Usama)

 - Misc fixes (Olivier, Pavel)

* tag 'for-5.18/io_uring-2022-03-18' of git://git.kernel.dk/linux-block: (42 commits)
  io_uring: terminate manual loop iterator loop correctly for non-vecs
  io_uring: don't check unrelated req->open.how in accept request
  io_uring: manage provided buffers strictly ordered
  io_uring: fold evfd signalling under a slower path
  io_uring: thin down io_commit_cqring()
  io_uring: shuffle io_eventfd_signal() bits around
  io_uring: remove extra barrier for non-sqpoll iopoll
  io_uring: fix provided buffer return on failure for kiocb_done()
  io_uring: extend provided buf return to fails
  io_uring: refactor timeout cancellation cqe posting
  io_uring: normilise naming for fill_cqe*
  io_uring: cache poll/double-poll state with a request flag
  io_uring: cache req->apoll->events in req->cflags
  io_uring: move req->poll_refs into previous struct hole
  io_uring: make tracing format consistent
  io_uring: recycle apoll_poll entries
  io_uring: remove duplicated member check for io_msg_ring_prep()
  io_uring: allow submissions to continue on error
  io_uring: recycle provided buffers if request goes async
  io_uring: ensure reads re-import for selected buffers
  ...

Pull crypto updates from Herbert Xu:
 "API:
   - hwrng core now credits for low-quality RNG devices.

  Algorithms:
   - Optimisations for neon aes on arm/arm64.
   - Add accelerated crc32_be on arm64.
   - Add ffdheXYZ(dh) templates.
   - Disallow hmac keys < 112 bits in FIPS mode.
   - Add AVX assembly implementation for sm3 on x86.

  Drivers:
   - Add missing local_bh_disable calls for crypto_engine callback.
   - Ensure BH is disabled in crypto_engine callback path.
   - Fix zero length DMA mappings in ccree.
   - Add synchronization between mailbox accesses in octeontx2.
   - Add Xilinx SHA3 driver.
   - Add support for the TDES IP available on sama7g5 SoC in atmel"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (137 commits)
  crypto: xilinx - Turn SHA into a tristate and allow COMPILE_TEST
  MAINTAINERS: update HPRE/SEC2/TRNG driver maintainers list
  crypto: dh - Remove the unused function dh_safe_prime_dh_alg()
  hwrng: nomadik - Change clk_disable to clk_disable_unprepare
  crypto: arm64 - cleanup comments
  crypto: qat - fix initialization of pfvf rts_map_msg structures
  crypto: qat - fix initialization of pfvf cap_msg structures
  crypto: qat - remove unneeded assignment
  crypto: qat - disable registration of algorithms
  crypto: hisilicon/qm - fix memset during queues clearing
  crypto: xilinx: prevent probing on non-xilinx hardware
  crypto: marvell/octeontx - Use swap() instead of open coding it
  crypto: ccree - Fix use after free in cc_cipher_exit()
  crypto: ccp - ccp_dmaengine_unregister release dma channels
  crypto: octeontx2 - fix missing unlock
  hwrng: cavium - fix NULL but dereferenced coccicheck error
  crypto: cavium/nitrox - don't cast parameter in bit operations
  crypto: vmx - add missing dependencies
  MAINTAINERS: Add maintainer for Xilinx ZynqMP SHA3 driver
  crypto: xilinx - Add Xilinx SHA3 driver
  ...

Pull random number generator updates from Jason Donenfeld:
 "There have been a few important changes to the RNG's crypto, but the
  intent for 5.18 has been to shore up the existing design as much as
  possible with modern cryptographic functions and proven constructions,
  rather than actually changing up anything fundamental to the RNG's
  design.

  So it's still the same old RNG at its core as before: it still counts
  entropy bits, and collects from the various sources with the same
  heuristics as before, and so forth. However, the cryptographic
  algorithms that transform that entropic data into safe random numbers
  have been modernized.

  Just as important, if not more, is that the code has been cleaned up
  and re-documented. As one of the first drivers in Linux, going back to
  1.3.30, its general style and organization was showing its age and
  becoming both a maintenance burden and an auditability impediment.

  Hopefully this provides a more solid foundation to build on for the
  future. I encourage you to open up the file in full, and maybe you'll
  remark, "oh, that's what it's doing," and enjoy reading it. That, at
  least, is the eventual goal, which this pull begins working toward.

  Here's a summary of the various patches in this pull:

   - /dev/urandom and /dev/random now do the same thing, per the patch
     we discussed on the list. I think this is worth trying out. If it
     does appear problematic, I've made sure to keep it standalone and
     revertible without any conflicts.

   - Fixes and cleanups for numerous integer type problems, locking
     issues, and general code quality concerns.

   - The input pool's LFSR has been replaced with a cryptographically
     secure hash function, which has security and performance benefits
     alike, and consequently allows us to count entropy bits linearly.

   - The pre-init injection now uses a real hash function too, instead
     of an LFSR or vanilla xor.

   - The interrupt handler's fast_mix() function now uses one round of
     SipHash, rather than the fake crypto that was there before.

   - All additions of RDRAND and RDSEED now go through the input pool's
     hash function, in part to mitigate ridiculous hypothetical CPU
     backdoors, but more so to have a consistent interface for ingesting
     entropy that's easy to analyze, making everything happen one way,
     instead of a potpourri of different ways.

   - The crng now works on per-cpu data, while also being in accordance
     with the actual "fast key erasure RNG" design. This allows us to
     fix several boot-time race complications associated with the prior
     dynamically allocated model, eliminates much locking, and makes our
     backtrack protection more robust.

   - Batched entropy now erases doled out values so that it's backtrack
     resistant.

   - Working closely with Sebastian, the interrupt handler no longer
     needs to take any locks at all, as we punt the
     synchronized/expensive operations to a workqueue. This is
     especially nice for PREEMPT_RT, where taking spinlocks in irq
     context is problematic. It also makes the handler faster for the
     rest of us.

   - Also working with Sebastian, we now do the right thing on CPU
     hotplug, so that we don't use stale entropy or fail to accumulate
     new entropy when CPUs come back online.

   - We handle virtual machines that fork / clone / snapshot, using the
     "vmgenid" ACPI specification for retrieving a unique new RNG seed,
     which we can use to also make WireGuard (and in the future, other
     things) safe across VM forks.

   - Around boot time, we now try to reseed more often if enough entropy
     is available, before settling on the usual 5 minute schedule.

   - Last, but certainly not least, the documentation in the file has
     been updated considerably"

* tag 'random-5.18-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: (60 commits)
  random: check for signal and try earlier when generating entropy
  random: reseed more often immediately after booting
  random: make consistent usage of crng_ready()
  random: use SipHash as interrupt entropy accumulator
  wireguard: device: clear keys on VM fork
  random: provide notifier for VM fork
  random: replace custom notifier chain with standard one
  random: do not export add_vmfork_randomness() unless needed
  virt: vmgenid: notify RNG of VM fork and supply generation ID
  ACPI: allow longer device IDs
  random: add mechanism for VM forks to reinitialize crng
  random: don't let 644 read-only sysctls be written to
  random: give sysctl_random_min_urandom_seed a more sensible value
  random: block in /dev/urandom
  random: do crng pre-init loading in worker rather than irq
  random: unify cycles_t and jiffies usage and types
  random: cleanup UUID handling
  random: only wake up writers after zap if threshold was passed
  random: round-robin registers as ulong, not u32
  random: clear fast pool, crng, and batches in cpuhp bring up
  ...

Pull PnP update from Rafael Wysocki:
 "Replace acpi_bus_get_device() in the PNP code with
  acpi_fetch_acpi_dev() which is better"

* tag 'pnp-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PNP: Replace acpi_bus_get_device()

Pull thermal control updates from Rafael Wysocki:
 "As far as new functionality is concerned, there is a new thermal
  driver for the Intel Hardware Feedback Interface (HFI) along with some
  intel-speed-select utility changes to support it. There are also new
  DT compatible strings for a couple of platforms, and thermal zones on
  some platforms will be registered as HWmon sensors now.

  Apart from the above, some drivers are updated (fixes mostly) and
  there is a new piece of documentation for the Intel DPTF (Dynamic
  Power and Thermal Framework) sysfs interface.

  Specifics:

   - Add a new thermal driver for the Intel Hardware Feedback Interface
     (HFI) including the HFI initialization, HFI notification interrupt
     handling and sending CPU capabilities change messages to user space
     via the thermal netlink interface (Ricardo Neri, Srinivas
     Pandruvada, Nathan Chancellor, Randy Dunlap).

   - Extend the intel-speed-select utility to handle out-of-band CPU
     configuration changes and add support for the CPU capabilities
     change messages sent over the thermal netlink interface by the new
     HFI thermal driver to it (Srinivas Pandruvada).

   - Convert the DT bindings to yaml format for the Exynos platform and
     fix and update the MAINTAINERS file for this driver (Krzysztof
     Kozlowski).

   - Register the thermal zones as HWmon sensors for the QCom's Tsens
     driver and TI thermal platforms (Dmitry Baryshkov, Romain Naour).

   - Add the msm8953 compatible documentation in the bindings (Luca
     Weiss).

   - Add the sm8150 platform support to the QCom LMh driver's DT binding
     (Thara Gopinath).

   - Check the command result from the IPC command to the BPMP in the
     Tegra driver (Mikko Perttunen).

   - Silence the error for normal configuration where the interrupt is
     optionnal in the Broadcom thermal driver (Florian Fainelli).

   - Remove remaining dead code from the TI thermal driver (Yue
     Haibing).

   - Don't use bitmap_weight() in end_power_clamp() in the powerclamp
     driver (Yury Norov).

   - Update the OS policy capabilities handshake in the int340x thermal
     driver (Srinivas Pandruvada).

   - Increase the policies bitmap size in int340x (Srinivas Pandruvada).

   - Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
     int340x thermal driver (Rafael Wysocki).

   - Check for NULL after calling kmemdup() in int340x (Jiasheng Jiang).

   - Add Intel Dynamic Power and Thermal Framework (DPTF) kernel
     interface documentation (Srinivas Pandruvada).

   - Fix bullet list warning in the thermal documentation (Randy
     Dunlap)"

* tag 'thermal-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (30 commits)
  thermal: int340x: Update OS policy capability handshake
  thermal: int340x: Increase bitmap size
  Documentation: thermal: DPTF Documentation
  MAINTAINERS: thermal: samsung: update Krzysztof Kozlowski's email
  thermal/drivers/ti-soc-thermal: Remove unused function ti_thermal_get_temp()
  thermal/drivers/brcmstb_thermal: Interrupt is optional
  thermal: tegra-bpmp: Handle errors in BPMP response
  drivers/thermal/ti-soc-thermal: Add hwmon support
  dt-bindings: thermal: tsens: Add msm8953 compatible
  dt-bindings: thermal: Add sm8150 compatible string for LMh
  thermal/drivers/qcom/lmh: Add support for sm8150
  thermal/drivers/tsens: register thermal zones as hwmon sensors
  MAINTAINERS: thermal: samsung: Drop obsolete properties
  dt-bindings: thermal: samsung: Convert to dtschema
  tools/power/x86/intel-speed-select: v1.12 release
  tools/power/x86/intel-speed-select: HFI support
  tools/power/x86/intel-speed-select: OOB daemon mode
  thermal: intel: hfi: INTEL_HFI_THERMAL depends on NET
  thermal: netlink: Fix parameter type of thermal_genl_cpu_capability_event() stub
  thermal: Replace acpi_bus_get_device()
  ...

Pull power management updates from Rafael Wysocki:
 "These are mostly fixes and cleanups all over the code and a new piece
  of documentation for Intel uncore frequency scaling.

  Functionality-wise, the intel_idle driver will support Sapphire Rapids
  Xeons natively now (with some extra facilities for controlling
  C-states more precisely on those systems), virtual guests will take
  the ACPI S4 hardware signature into account by default, the
  intel_pstate driver will take the defualt EPP value from the firmware,
  cpupower utility will support the AMD P-state driver added in the
  previous cycle, and there is a new tracer utility for that driver.

  Specifics:

   - Allow device_pm_check_callbacks() to be called from interrupt
     context without issues (Dmitry Baryshkov).

   - Modify devm_pm_runtime_enable() to automatically handle
     pm_runtime_dont_use_autosuspend() at driver exit time (Douglas
     Anderson).

   - Make the schedutil cpufreq governor use to_gov_attr_set() instead
     of open coding it (Kevin Hao).

   - Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
     cpufreq longhaul driver (Rafael Wysocki).

   - Unify show() and store() naming in cpufreq and make it use
     __ATTR_XX (Lianjie Zhang).

   - Make the intel_pstate driver use the EPP value set by the firmware
     by default (Srinivas Pandruvada).

   - Re-order the init checks in the powernow-k8 cpufreq driver (Mario
     Limonciello).

   - Make the ACPI processor idle driver check for architectural support
     for LPI to avoid using it on x86 by mistake (Mario Limonciello).

   - Add Sapphire Rapids Xeon support to the intel_idle driver (Artem
     Bityutskiy).

   - Add 'preferred_cstates' module argument to the intel_idle driver to
     work around C1 and C1E handling issue on Sapphire Rapids (Artem
     Bityutskiy).

   - Add core C6 optimization on Sapphire Rapids to the intel_idle
     driver (Artem Bityutskiy).

   - Optimize the haltpoll cpuidle driver a bit (Li RongQing).

   - Remove leftover text from intel_idle() kerneldoc comment and fix up
     white space in intel_idle (Rafael Wysocki).

   - Fix load_image_and_restore() error path (Ye Bin).

   - Fix typos in comments in the system wakeup hadling code (Tom Rix).

   - Clean up non-kernel-doc comments in hibernation code (Jiapeng
     Chong).

   - Fix __setup handler error handling in system-wide suspend and
     hibernation core code (Randy Dunlap).

   - Add device name to suspend_report_result() (Youngjin Jang).

   - Make virtual guests honour ACPI S4 hardware signature by default
     (David Woodhouse).

   - Block power off of a parent PM domain unless child is in deepest
     state (Ulf Hansson).

   - Use dev_err_probe() to simplify error handling for generic PM
     domains (Ahmad Fatoum).

   - Fix sleep-in-atomic bug caused by genpd_debug_remove() (Shawn Guo).

   - Document Intel uncore frequency scaling (Srinivas Pandruvada).

   - Add DTPM hierarchy description (Daniel Lezcano).

   - Change the locking scheme in DTPM (Daniel Lezcano).

   - Fix dtpm_cpu cleanup at exit time and missing virtual DTPM pointer
     release (Daniel Lezcano).

   - Make dtpm_node_callback[] static (kernel test robot).

   - Fix spelling mistake "initialze" -> "initialize" in
     dtpm_create_hierarchy() (Colin Ian King).

   - Add tracer tool for the amd-pstate driver (Jinzhou Su).

   - Fix PC6 displaying in turbostat on some systems (Artem Bityutskiy).

   - Add AMD P-State support to the cpupower utility (Huang Rui)"

* tag 'pm-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (58 commits)
  cpufreq: powernow-k8: Re-order the init checks
  cpuidle: intel_idle: Drop redundant backslash at line end
  cpuidle: intel_idle: Update intel_idle() kerneldoc comment
  PM: hibernate: Honour ACPI hardware signature by default for virtual guests
  cpufreq: intel_pstate: Use firmware default EPP
  cpufreq: unify show() and store() naming and use __ATTR_XX
  PM: core: keep irq flags in device_pm_check_callbacks()
  cpuidle: haltpoll: Call cpuidle_poll_state_init() later
  Documentation: amd-pstate: add tracer tool introduction
  tools/power/x86/amd_pstate_tracer: Add tracer tool for AMD P-state
  tools/power/x86/intel_pstate_tracer: make tracer as a module
  cpufreq: amd-pstate: Add more tracepoint for AMD P-State module
  PM: sleep: Add device name to suspend_report_result()
  turbostat: fix PC6 displaying on some systems
  intel_idle: add core C6 optimization for SPR
  intel_idle: add 'preferred_cstates' module argument
  intel_idle: add SPR support
  PM: runtime: Have devm_pm_runtime_enable() handle pm_runtime_dont_use_autosuspend()
  ACPI: processor idle: Check for architectural support for LPI
  cpuidle: PSCI: Move the `has_lpi` check to the beginning of the function
  ...

Pull ACPI updates from Rafael Wysocki:
 "From the new functionality perspective, the most significant items
  here are the new driver for the 'ARM Generic Diagnostic Dump and
  Reset' device, the extension of fine grain fan control in the ACPI fan
  driver, and the change making it possible to use CPPC information to
  obtain CPU capacity.

  There are also a few new quirks, a bunch of fixes, including the
  platform-level _OSC handling change to make it actually take the
  platform firmware response into account, some code and documentation
  cleanups, and a notable update of the ACPI device enumeration
  documentation.

  Specifics:

   - Use uintptr_t and offsetof() in the ACPICA code to avoid compiler
     warnings regarding NULL pointer arithmetic (Rafael Wysocki).

   - Fix possible NULL pointer dereference in acpi_ns_walk_namespace()
     when passed "acpi=off" in the command line (Rafael Wysocki).

   - Fix and clean up acpi_os_read/write_port() (Rafael Wysocki).

   - Introduce acpi_bus_for_each_dev() and use it for walking all ACPI
     device objects in the Type C code (Rafael Wysocki).

   - Fix the _OSC platform capabilities negotioation and prevent CPPC
     from being used if the platform firmware indicates that it not
     supported via _OSC (Rafael Wysocki).

   - Use ida_alloc() instead of ida_simple_get() for ACPI enumeration of
     devices (Rafael Wysocki).

   - Add AGDI and CEDT to the list of known ACPI table signatures (Ilkka
     Koskinen, Robert Kiraly).

   - Add power management debug messages related to suspend-to-idle in
     two places (Rafael Wysocki).

   - Fix __acpi_node_get_property_reference() return value and clean up
     that function (Andy Shevchenko, Sakari Ailus).

   - Fix return value of the __setup handler in the ACPI PM timer clock
     source driver (Randy Dunlap).

   - Clean up double words in two comments (Tom Rix).

   - Add "skip i2c clients" quirks for Lenovo Yoga Tablet 1050F/L and
     Nextbook Ares 8 (Hans de Goede).

   - Clean up frequency invariance handling on x86 in the ACPI CPPC
     library (Huang Rui).

   - Work around broken XSDT on the Advantech DAC-BJ01 board (Mark
     Cilissen).

   - Make wakeup events checks in the ACPI EC driver more
     straightforward and clean up acpi_ec_submit_event() (Rafael
     Wysocki).

   - Make it possible to obtain the CPU capacity with the help of CPPC
     information (Ionela Voinescu).

   - Improve fine grained fan control in the ACPI fan driver and
     document it (Srinivas Pandruvada).

   - Add device HID and quirk for Microsoft Surface Go 3 to the ACPI
     battery driver (Maximilian Luz).

   - Make the ACPI driver for Intel SoCs (LPSS) let the SPI driver know
     the exact type of the controller (Andy Shevchenko).

   - Force native backlight mode on Clevo NL5xRU and NL5xNU (Werner
     Sembach).

   - Fix return value of __setup handlers in the APEI code (Randy
     Dunlap).

   - Add Arm Generic Diagnostic Dump and Reset device driver (Ilkka
     Koskinen).

   - Limit printable size of BERT table data (Darren Hart).

   - Fix up HEST and GHES initialization (Shuai Xue).

   - Update the ACPI device enumeration documentation and unify the ASL
     style in GPIO-related examples (Andy Shevchenko)"

* tag 'acpi-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits)
  clocksource: acpi_pm: fix return value of __setup handler
  ACPI: bus: Avoid using CPPC if not supported by firmware
  Revert "ACPI: Pass the same capabilities to the _OSC regardless of the query flag"
  ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU
  arm64, topology: enable use of init_cpu_capacity_cppc()
  arch_topology: obtain cpu capacity using information from CPPC
  x86, ACPI: rename init_freq_invariance_cppc() to arch_init_invariance_cppc()
  ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device
  ACPI: tables: Add AGDI to the list of known table signatures
  ACPI/APEI: Limit printable size of BERT table data
  ACPI: docs: gpio-properties: Unify ASL style for GPIO examples
  ACPI / x86: Work around broken XSDT on Advantech DAC-BJ01 board
  ACPI: APEI: fix return value of __setup handlers
  x86/ACPI: CPPC: Move init_freq_invariance_cppc() into x86 CPPC
  x86: Expose init_freq_invariance() to topology header
  x86/ACPI: CPPC: Move AMD maximum frequency ratio setting function into x86 CPPC
  x86/ACPI: CPPC: Rename cppc_msr.c to cppc.c
  ACPI / x86: Add skip i2c clients quirk for Lenovo Yoga Tablet 1050F/L
  ACPI / x86: Add skip i2c clients quirk for Nextbook Ares 8
  ACPICA: Avoid walking the ACPI Namespace if it is not there
  ...

Pull documentation updates from Jonathan Corbet:
 "It has been a moderately busy cycle for documentation; some of the
  highlights are:

   - Numerous PDF-generation improvements

   - Kees's new document with guidelines for researchers studying the
     development community.

   - The ongoing stream of Chinese translations

   - Thorsten's new document on regression handling

   - A major reworking of the internal documentation for the kernel-doc
     script.

  Plus the usual stream of typo fixes and such"

* tag 'docs-5.18' of git://git.lwn.net/linux: (80 commits)
  docs/kernel-parameters: update description of mem=
  docs/zh_CN: Add sched-nice-design Chinese translation
  docs: scheduler: Convert schedutil.txt to ReST
  Docs: ktap: add code-block type
  docs: serial: fix a reference file name in driver.rst
  docs: UML: Mention telnetd for port channel
  docs/zh_CN: add damon reclaim translation
  docs/zh_CN: add damon usage translation
  docs/zh_CN: add admin-guide damon start translation
  docs/zh_CN: add admin-guide damon index translation
  docs/zh_CN: Refactoring the admin-guide directory index
  zh_CN: Add translation for admin-guide/mm/index.rst
  zh_CN: Add translations for admin-guide/mm/ksm.rst
  Add Chinese translation for vm/ksm.rst
  docs/zh_CN: Add sched-stats Chinese translation
  docs/zh_CN: add devicetree of_unittest translation
  docs/zh_CN: add devicetree usage-model translation
  docs/zh_CN: add devicetree index translation
  Documentation: describe how to apply incremental stable patches
  docs/zh_CN: add peci subsystem translation
  ...

Pull memory model doc update from Paul McKenney:
 "An improved explanation of syntactic and semantic dependencies from
  Alan Stern"

* tag 'lkmm.2022.03.13a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  tools/memory-model: Explain syntactic and semantic dependencies

Pull RCU updates from Paul McKenney:

 - Fix idle detection (Neeraj Upadhyay) and missing access marking
   detected by KCSAN.

 - Reduce coupling between rcu_barrier() and CPU-hotplug operations, so
   that rcu_barrier() no longer needs to do cpus_read_lock(). This may
   also someday allow system boot to bring CPUs online concurrently.

 - Enable more aggressive movement to per-CPU queueing when reacting to
   excessive lock contention due to workloads placing heavy update-side
   stress on RCU tasks.

 - Improvements to RCU priority boosting, including changes from Neeraj
   Upadhyay, Zqiang, and Alison Chaiken.

 - Various fixes improving test robustness and debug information.

 - Add tests for SRCU size transitions, further compress torture.sh
   build products, and improve debug output.

 - Miscellaneous fixes.

* tag 'rcu.2022.03.13a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (49 commits)
  rcu: Replace cpumask_weight with cpumask_empty where appropriate
  rcu: Remove __read_mostly annotations from rcu_scheduler_active externs
  rcu: Uninline multi-use function: finish_rcuwait()
  rcu: Mark writes to the rcu_segcblist structure's ->flags field
  kasan: Record work creation stack trace with interrupts enabled
  rcu: Inline __call_rcu() into call_rcu()
  rcu: Add mutex for rcu boost kthread spawning and affinity setting
  rcu: Fix description of kvfree_rcu()
  MAINTAINERS:  Add Frederic and Neeraj to their RCU files
  rcutorture: Provide non-power-of-two Tasks RCU scenarios
  rcutorture: Test SRCU size transitions
  torture: Make torture.sh help message match reality
  rcu-tasks: Set ->percpu_enqueue_shift to zero upon contention
  rcu-tasks: Use order_base_2() instead of ilog2()
  rcu: Create and use an rcu_rdp_cpu_online()
  rcu: Make rcu_barrier() no longer block CPU-hotplug operations
  rcu: Rework rcu_barrier() and callback-migration logic
  rcu: Refactor rcu_barrier() empty-list handling
  rcu: Kill rnp->ofl_seq and use only rcu_state.ofl_lock for exclusion
  torture: Change KVM environment variable to RCUTORTURE
  ...

Pull parisc architecture updates from Helge Deller:

 - add vDSO support (allows us to use non-executable stacks)

 - many TLB and cache flush optimizations (by Dave Anglin)

 - fix handling of probe non-access faults (by Dave Anglin)

 - fix invalidate/flush vmap routines (by Dave Anglin)

 - avoid using hardware single-step in kprobes

 - enable ARCH_HAS_DEBUG_VM_PGTABLE

 - many cleanups in unaligned handlers, e.g. rewrite of existing
   assembly code

 - always use the self-extracting kernel feature

 - big refacturing and code reductions regarding space-register usage in
   get_user() and put_user()

 - add fillrect() support to stifb graphics driver

* tag 'for-5.18/parisc-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: (23 commits)
  parisc: Fix invalidate/flush vmap routines
  parisc: Avoid flushing cache on cache-less machines
  parisc: Avoid using hardware single-step in kprobes
  parisc: Improve CPU socket and core bootup info text
  parisc: Enable ARCH_HAS_DEBUG_VM_PGTABLE
  parisc: Avoid calling SMP cache flush functions on cache-less machines
  parisc: Increase parisc_cache_flush_threshold setting
  parisc/unaligned: Enhance user-space visible output
  parisc/unaligned: Rewrite 32-bit inline assembly of emulate_sth()
  parisc/unaligned: Rewrite 32-bit inline assembly of emulate_ldd()
  parisc/unaligned: Rewrite inline assembly of emulate_ldw()
  parisc/unaligned: Rewrite inline assembly of emulate_ldh()
  parisc/unaligned: Use EFAULT fixup handler in unaligned handlers
  parisc: Reduce code size by optimizing get_current() function calls
  parisc: Use constants to encode the space registers like SR_KERNEL
  parisc: Use SR_USER and SR_KERNEL in get_user() and put_user()
  parisc: Add defines for various space register
  parisc: Always use the self-extracting kernel feature
  video/fbdev/stifb: Implement the stifb_fillrect() function
  parisc: Add vDSO support
  ...

Pull interrupt updates from Thomas Gleixner:
 "Core code:

   - Provide generic_handle_irq_safe() which can be invoked from any
     context (hard interrupt or threaded). This allows to remove ugly
     workarounds in drivers all over the place.

   - Use generic_handle_irq_safe() in the affected drivers.

   - The usual cleanups and improvements.

  Interrupt chip drivers:

   - Support for new interrupt chips or not yet supported variants:
     STM32MP14, Meson GPIO, Apple M1 PMU, Apple M1 AICv2, Qualcomm MPM

   - Convert the Xilinx driver to generic interrupt domains

   - Cleanup the irq_chip::name handling

   - The usual cleanups and improvements all over the place"

* tag 'irq-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
  irqchip: Add Qualcomm MPM controller driver
  dt-bindings: interrupt-controller: Add Qualcomm MPM support
  irqchip/apple-aic: Add support for AICv2
  irqchip/apple-aic: Support multiple dies
  irqchip/apple-aic: Dynamically compute register offsets
  irqchip/apple-aic: Switch to irq_domain_create_tree and sparse hwirqs
  irqchip/apple-aic: Add Fast IPI support
  dt-bindings: interrupt-controller: apple,aic2: New binding for AICv2
  PCI: apple: Change MSI handling to handle 4-cell AIC fwspec form
  irqchip/apple-aic: Fix cpumask allocation for FIQs
  irqchip/meson-gpio: Add support for meson s4 SoCs
  irqchip/meson-gpio: add select trigger type callback
  irqchip/meson-gpio: support more than 8 channels gpio irq
  dt-bindings: interrupt-controller: New binding for Meson-S4 SoCs
  irqchip/xilinx: Switch to GENERIC_IRQ_MULTI_HANDLER
  staging: greybus: gpio: Use generic_handle_irq_safe().
  net: usb: lan78xx: Use generic_handle_irq_safe().
  mfd: ezx-pcap: Use generic_handle_irq_safe().
  misc: hi6421-spmi-pmic: Use generic_handle_irq_safe().
  irqchip/sifive-plic: Disable S-mode IRQs if running in M-mode
  ...

Pull timer and timekeeping updates from Thomas Gleixner:
 "Core code:

   - Make the NOHZ handling of the timekeeping/tick core more robust to
     prevent a rare jiffies update stall.

   - Handle softirqs in the NOHZ/idle case correctly

  Drivers:

   - Add support for event stream scaling of the 1GHz counter on ARM(64)

   - Correct an error code check in the timer-of layer

   - The usual cleanups and improvements all over the place"

* tag 'timers-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  lib/irq_poll: Declare IRQ_POLL softirq vector as ksoftirqd-parking safe
  tick/rcu: Stop allowing RCU_SOFTIRQ in idle
  tick/rcu: Remove obsolete rcu_needs_cpu() parameters
  tick: Detect and fix jiffies update stall
  clocksource/drivers/timer-of: Check return value of of_iomap in timer_of_base_init()
  clocksource/drivers/timer-microchip-pit64b: Use 5MHz for clockevent
  clocksource/drivers/timer-microchip-pit64b: Use notrace
  clocksource/drivers/timer-microchip-pit64b: Remove mmio selection
  dt-bindings: timer: Tegra: Convert text bindings to yaml
  clocksource/drivers/imx-tpm: Move tpm_read_sched_clock() under CONFIG_ARM
  clocksource/drivers/arm_arch_timer: Use event stream scaling when available
  clocksource/drivers/exynos_mct: Increase the size of name array
  clocksource/drivers/exynos_mct: Bump up mct max irq number
  clocksource/drivers/exynos_mct: Remove mct interrupt index enum
  clocksource/drivers/exynos_mct: Handle DTS with higher number of interrupts
  clocksource/drivers/timer-ti-dm: Fix regression from errata i940 fix
  clocksource/drivers/imx-tpm: Exclude sched clock for ARM64
  clocksource: Add a Kconfig option for WATCHDOG_MAX_SKEW
  clocksource/drivers/imx-tpm: Update name of clkevt
  clocksource/drivers/imx-tpm: Add CLOCK_EVT_FEAT_DYNIRQ
  ...

Pull core process handling RT latency updates from Thomas Gleixner:

 - Reduce the amount of work to release a task stack in context switch.
   There is no real reason to do cgroup accounting and memory freeing in
   this performance sensitive context.

   Aside of this the invoked functions cannot be called from this
   preemption disabled context on PREEMPT_RT enabled kernels. Solve this
   by moving the accounting into do_exit() and delaying the freeing of
   the stack unless the vmap stack can be cached.

 - Provide a mechanism to delay raising signals from atomic context on
   PREEMPT_RT enabled kernels as sighand::lock cannot be acquired. Store
   the information in the task struct and raise it in the exit path.

* tag 'core-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  signal, x86: Delay calling signals in atomic on RT enabled kernels
  fork: Use IS_ENABLED() in account_kernel_stack()
  fork: Only cache the VMAP stack in finish_task_switch()
  fork: Move task stack accounting to do_exit()
  fork: Move memcg_charge_kernel_stack() into CONFIG_VMAP_STACK
  fork: Don't assign the stack pointer in dup_task_struct()
  fork, IA64: Provide alloc_thread_stack_node() for IA64
  fork: Duplicate task_struct before stack allocation
  fork: Redo ifdefs around task stack handling

Pull x86 PASID support from Thomas Gleixner:
 "Reenable ENQCMD/PASID support:

   - Simplify the PASID handling to allocate the PASID once, associate
     it to the mm of a process and free it on mm_exit().

     The previous attempt of refcounted PASIDs and dynamic
     alloc()/free() turned out to be error prone and too complex. The
     PASID space is 20bits, so the case of resource exhaustion is a pure
     academic concern.

   - Populate the PASID MSR on demand via #GP to avoid racy updates via
     IPIs.

   - Reenable ENQCMD and let objtool check for the forbidden usage of
     ENQCMD in the kernel.

   - Update the documentation for Shared Virtual Addressing accordingly"

* tag 'x86-pasid-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Documentation/x86: Update documentation for SVA (Shared Virtual Addressing)
  tools/objtool: Check for use of the ENQCMD instruction in the kernel
  x86/cpufeatures: Re-enable ENQCMD
  x86/traps: Demand-populate PASID MSR via #GP
  sched: Define and initialize a flag to identify valid PASID in the task
  x86/fpu: Clear PASID when copying fpstate
  iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit
  kernel/fork: Initialize mm's PASID
  iommu/ioasid: Introduce a helper to check for valid PASIDs
  mm: Change CONFIG option for mm->pasid field
  iommu/sva: Rename CONFIG_IOMMU_SVA_LIB to CONFIG_IOMMU_SVA

Pull x86 cleanups from Borislav Petkov:

 - Remove a misleading message and an unused function

* tag 'x86_cleanups_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/nmi: Remove the 'strange power saving mode' hint from unknown NMI handler
  x86/pat: Remove the unused set_pages_array_wt() function

Pull x86 confidential computing updates from Borislav Petkov:

 - Add shared confidential computing code which will be used by both
   vendors instead of proliferating home-grown solutions for
   technologies (SEV/SNP and TDX) which are pretty similar

* tag 'x86_cc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/cpa: Generalize __set_memory_enc_pgtable()
  x86/coco: Add API to handle encryption mask
  x86/coco: Explicitly declare type of confidential computing platform
  x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c}

Pull x86 SGX updates from Borislav Petkov:

 - A couple of fixes and improvements to the SGX selftests

* tag 'x86_sgx_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  selftests/sgx: Treat CC as one argument
  selftests/x86: Add validity check and allow field splitting
  selftests/sgx: Remove extra newlines in test output
  selftests/sgx: Ensure enclave data available during debug print
  selftests/sgx: Do not attempt enclave build without valid enclave
  selftests/sgx: Fix NULL-pointer-dereference upon early test failure

Pull x86 SEV fix from Borislav Petkov:

 - Add a missing function section annotation

* tag 'x86_sev_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/head64: Add missing __head annotation to sme_postprocess_startup()

Pull x86 paravirt improvement from Borislav Petkov:

 - Shorten CALL insns to pvops by a byte by using rip-relative
   addressing

* tag 'x86_paravirt_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/paravirt: Use %rip-relative addressing in hook calls

Pull x86 Kconfig fix from Borislav Petkov:

 - Correct Kconfig symbol visibility on x86

* tag 'x86_build_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/Kconfig: Select ARCH_SELECT_MEMORY_MODEL only if FLATMEM and SPARSEMEM are possible