This is the new-and-improved attempt at avoiding huge memory load spikes
when the user space boot sequence tries to load hundreds (or even
thousands) of redundant duplicate modules in parallel.

See commit 9828ed3f ("module: error out early on concurrent load of
the same module file") for background and an earlier failed attempt that
was reverted.

That earlier attempt just said "concurrently loading the same module is
silly, just open the module file exclusively and return -ETXTBSY if
somebody else is already loading it".

While it is true that concurrent module loads of the same module is
silly, the reason that earlier attempt then failed was that the
concurrently loaded module would often be a prerequisite for another
module.

Thus failing to load the prerequisite would then cause cascading
failures of the other modules, rather than just short-circuiting that
one unnecessary module load.

At the same time, we still really don't want to load the contents of the
same module file hundreds of times, only to then wait for an eventually
successful load, and have everybody else return -EEXIST.

As a result, this takes another approach, and treats concurrent module
loads from the same file as "idempotent" in the inode.  So if one module
load is ongoing, we don't start a new one, but instead just wait for the
first one to complete and return the same return value as it did.

So unlike the first attempt, this does not return early: the intent is
not to speed up the boot, but to avoid a thundering herd problem in
allocating memory (both physical and virtual) for a module more than
once.

Also note that this does change behavior: it used to be that when you
had concurrent loads, you'd have one "winner" that would return success,
and everybody else would return -EEXIST.

In contrast, this idempotent logic goes all Oprah on the problem, and
says "You are a winner! And you are a winner! We are ALL winners".  But
since there's no possible actual real semantic difference between "you
loaded the module" and "somebody else already loaded the module", this
is more of a feel-good change than an actual honest-to-goodness semantic
change.

Of course, any true Johnny-come-latelies that don't get caught in the
concurrency filter will still return -EEXIST.  It's no different from
not even getting a seat at an Oprah taping.  That's life.

See the long thread on the kernel mailing list about this all, which
includes some numbers for memory use before and after the patch.

Link: https://lore.kernel.org/lkml/20230524213620.3509138-1-mcgrof@kernel.org/Reviewed-by: Johan Hovold <johan@kernel.org>
Tested-by: Johan Hovold <johan@kernel.org>
Tested-by: Luis Chamberlain <mcgrof@kernel.org>
Tested-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Rudi Heitbaum <rudi@heitbaum..com>
Tested-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This will simplify the next step, where we can then key off the inode to
do one idempotent module load.

Let's do the obvious re-organization in one step, and then the new code
in another.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Allow synchronous detection of (e)MMC/SD/SDIO cards
   - Fixup error check for ioctls for SPI hosts
   - Disable broken SD-Cache support for Kingston Canvas Go Plus from 2019
   - Disable broken eMMC-Trim support for Kingston EMMC04G-M627
   - Disable broken eMMC-Trim support for Micron MTFC4GACAJCN-1M

  MMC host:
   - bcm2835: Convert DT bindings to YAML
   - mmci:
      - Enable asynchronous probe
      - Transform the ux500 HW-busy detection into a proper state machine
      - Add support for SW busy-end timeouts for the ux500 variants
   - mmci_stm32:
      - Add support for sdm32 variant revision v3.0 used on STM32MP25
      - Improve the tuning sequence
   - mtk-sd: Tune polling-period to improve performance
   - sdhci: Fixup DMA configuration for 64-bit DMA mode
   - sdhci-bcm-kona: Convert DT bindings to YAML
   - sdhci-msm:
      - Switch to use the new ICE API
      - Add support for the SC8280XP/IPQ6018/QDU1000/QRU1000 variants
   - sdhci-pci-gli:
      - Add support SD Express cards for GL9767
      - Add support for the Genesys Logic GL9767 variant"

* tag 'mmc-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (42 commits)
  dt-bindings: mmc: fsl-imx-esdhc: Add imx6ul support
  mmc: mmci: Add support for SW busy-end timeouts
  mmc: Add MMC_QUIRK_BROKEN_SD_CACHE for Kingston Canvas Go Plus from 11/2019
  mmc: core: disable TRIM on Kingston EMMC04G-M627
  mmc: mmci: stm32: add delay block support for STM32MP25
  mmc: mmci: stm32: prepare other delay block support
  mmc: mmci: stm32: manage block gap hardware flow control
  mmc: mmci: Add support for sdmmc variant revision v3.0
  mmc: mmci: add stm32_idmabsize_align parameter
  dt-bindings: mmc: mmci: Add st,stm32mp25-sdmmc2 compatible
  mmc: core: disable TRIM on Micron MTFC4GACAJCN-1M
  mmc: mmci: Break out a helper function
  mmc: mmci: Use a switch statement machine
  mmc: mmci: Use state machine state as exit condition
  mmc: mmci: Retry the busy start condition
  mmc: mmci: Make busy complete state machine explicit
  mmc: mmci: Break out error check in busy detect
  mmc: mmci: Stash status while waiting for busy
  mmc: mmci: Unwind big if() clause
  mmc: mmci: Clear busy_status when starting command
  ...

Pull mtd updates from
 "Core MTD changes:
   - otp:
      - Put factory OTP/NVRAM into the entropy pool
      - Clean up on error in mtd_otp_nvmem_add()

  MTD devices changes:
   - sm_ftl: Fix typos in comments
   - Use SPDX license headers
   - pismo: Switch back to use i2c_driver's .probe()
   - mtdpart: Drop useless LIST_HEAD
   - st_spi_fsm: Use the devm_clk_get_enabled() helper function

  DT binding changes:
   - partitions:
      - Include TP-Link SafeLoader in allowed list
      - Add missing type for "linux,rootfs"
   - Extend the nand node names filter
   - Create a file for raw NAND chip properties
   - Mark nand-ecc-placement deprecated
   - Describe nand-ecc-mode
   - Prevent NAND chip unevaluated properties in all NAND bindings with
     a NAND chip reference.
   - Qcom: Fix a property position
   - Marvell: Convert to YAML DT schema

  Raw NAND chip drivers changes:
   - Macronix: OTP access for MX30LFxG18AC
   - Add basic Sandisk manufacturer ops
   - Add support for Sandisk SDTNQGAMA

  Raw NAND controller driver changes:
   - Meson:
      - Replace integer consts with proper defines
      - Allow waiting w/o wired ready/busy pin
      - Check buffer length validity
      - Fix unaligned DMA buffers handling
      - dt-bindings: Fix 'nand-rb' property
   - Arasan: Revert "mtd: rawnand: arasan: Prevent an unsupported
     configuration" as this limitation is no longer true thanks to the
     recent efforts in improving the clocks support in this driver

  SPI-NAND changes:
   - Gigadevice: add support for GD5F2GQ5xExxH
   - Macronix: Add support for serial NAND flashes"

* tag 'mtd/for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (38 commits)
  dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
  dt-bindings: mtd: ti,am654: Prevent unevaluated properties
  dt-bindings: mtd: mediatek: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: mediatek: Reference raw-nand-chip.yaml
  dt-bindings: mtd: stm32: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: rockchip: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: intel: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: denali: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: brcmnand: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: meson: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: sunxi: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: ingenic: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: qcom: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: qcom: Fix a property position
  dt-bindings: mtd: Describe nand-ecc-mode
  dt-bindings: mtd: Mark nand-ecc-placement deprecated
  dt-bindings: mtd: Create a file for raw NAND chip properties
  dt-bindings: mtd: Accept nand related node names
  mtd: sm_ftl: Fix typos in comments
  mtd: otp: clean up on error in mtd_otp_nvmem_add()
  ...

Pull spi updates from Mark Brown:
 "One small core feature this time around but mostly driver improvements
  and additions for SPI:

   - Add support for controlling the idle state of MOSI, some systems
     can support this and depending on the system integration may need
     it to avoid glitching in some situations

   - Support for polling mode in the S3C64xx driver and DMA on the
     Qualcomm QSPI driver

   - Support for several Allwinner SoCs, AMD Pensando Elba, Intel Mount
     Evans, Renesas RZ/V2M, and ST STM32H7"

* tag 'spi-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (66 commits)
  spi: dt-bindings: atmel,at91rm9200-spi: fix broken sam9x7 compatible
  spi: dt-bindings: atmel,at91rm9200-spi: add sam9x7 compatible
  spi: Add support for Renesas CSI
  spi: dt-bindings: Add bindings for RZ/V2M CSI
  spi: sun6i: Use the new helper to derive the xfer timeout value
  spi: atmel: Prevent false timeouts on long transfers
  spi: dt-bindings: stm32: do not disable spi-slave property for stm32f4-f7
  spi: Create a helper to derive adaptive timeouts
  spi: spi-geni-qcom: correctly handle -EPROBE_DEFER from dma_request_chan()
  spi: stm32: disable spi-slave property for stm32f4-f7
  spi: stm32: introduction of stm32h7 SPI device mode support
  spi: stm32: use dmaengine_terminate_{a}sync instead of _all
  spi: stm32: renaming of spi_master into spi_controller
  spi: dw: Remove misleading comment for Mount Evans SoC
  spi: dt-bindings: snps,dw-apb-ssi: Add compatible for Intel Mount Evans SoC
  spi: dw: Add compatible for Intel Mount Evans SoC
  spi: s3c64xx: Use dev_err_probe()
  spi: s3c64xx: Use the managed spi master allocation function
  spi: spl022: Probe defer is no error
  spi: spi-imx: fix mixing of native and gpio chipselects for imx51/imx53/imx6 variants
  ...

Pull regulator updates from Mark Brown:
 "This release is almost all drivers, there's some small improvements in
  the core but otherwise everything is updates to drivers, mostly the
  addition of new ones.

  There's also a bunch of changes pulled in from the MFD subsystem as
  dependencies, Rockchip and TI core MFD code that the regulator drivers
  depend on.

  I've also yet again managed to put a SPI commit in the regulator tree,
  I don't know what it is about those two trees (this for
  spi-geni-qcom).

  Summary:

   - Support for Renesas RAA215300, Rockchip RK808, Texas Instruments
     TPS6594 and TPS6287x, and X-Powers AXP15060 and AXP313a"

* tag 'regulator-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (43 commits)
  regulator: Add Renesas PMIC RAA215300 driver
  regulator: dt-bindings: Add Renesas RAA215300 PMIC bindings
  regulator: ltc3676: Use maple tree register cache
  regulator: ltc3589: Use maple tree register cache
  regulator: helper: Document ramp_delay parameter of regulator_set_ramp_delay_regmap()
  regulator: mt6358: Use linear voltage helpers for single range regulators
  regulator: mt6358: Const-ify mt6358_regulator_info data structures
  regulator: mt6358: Drop *_SSHUB regulators
  regulator: mt6358: Merge VCN33_* regulators
  regulator: dt-bindings: mt6358: Drop *_sshub regulators
  regulator: dt-bindings: mt6358: Merge ldo_vcn33_* regulators
  regulator: dt-bindings: pwm-regulator: Add missing type for "pwm-dutycycle-unit"
  regulator: Switch two more i2c drivers back to use .probe()
  spi: spi-geni-qcom: Do not do DMA map/unmap inside driver, use framework instead
  soc: qcom: geni-se: Add interfaces geni_se_tx_init_dma() and geni_se_rx_init_dma()
  regulator: tps6594-regulator: Add driver for TI TPS6594 regulators
  regulator: axp20x: Add AXP15060 support
  regulator: axp20x: Add support for AXP313a variant
  dt-bindings: pfuze100.yaml: Add an entry for interrupts
  regulator: stm32-pwr: Fix regulator disabling
  ...

Pull regmap updates from Mark Brown:
 "Another busy release for regmap with the second half of the maple tree
  register cache implementation, there's some smaller optimisations that
  could be done but this should now be able to replace the rbtree cache
  for most devices.

  We also had a followup from Aidan MacDonald's refactoring of some of
  the regmap-irq interfaces, the conversion is complete so the old
  interfaces are removed. This means that even with the new features for
  the maple tree cache we'd have a nice negative diffstat were it not
  for the addition of a bunch more KUnit coverage.

  There's one GPIO patch in here, it was a dependency for a cleanup of
  an API in the regmap-irq code for which the gpio-104-dio-48e driver
  was the only user.

  Highlights:

   - The maple tree cache can now load in default values more
     efficiently, and is capabale of syncing multiple registers
     in a single write during cache sync

   - More KUnit coverage, including some coverage for raw I/O
     and a dummy RAM backed cache to support it

   - Removal of several old interfaces in regmap-irq now all
     users have been modernised"

* tag 'regmap-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (23 commits)
  regmap: Allow reads from write only registers with the flat cache
  regmap: Drop early readability check
  regmap: Check for register readability before checking cache during read
  regmap: Add test to make sure we don't sync to read only registers
  regmap: Add a test case for write only registers
  regmap: Add test that writes to write only registers are prevented
  regmap: Add debugfs file for forcing field writes
  regmap: Don't check for changes in regcache_set_val()
  regmap: maple: Implement block sync for the maple tree cache
  regmap: Provide basic KUnit coverage for the raw register I/O
  regmap: Provide a ram backed regmap with raw support
  regmap: Add missing cache_only checks
  regmap: regmap-irq: Move handle_post_irq to before pm_runtime_put
  regmap: Load register defaults in blocks rather than register by register
  regmap: mmio: Allow passing an empty config->reg_stride
  regmap-irq: Drop backward compatibility for inverted mask/unmask
  regmap-irq: Minor adjustments to .handle_mask_sync()
  regmap-irq: Remove support for not_fixed_stride
  regmap-irq: Remove type registers
  regmap-irq: Remove virtual registers
  ...

The memory encryption initialization logic was moved from init/main.c
into arch_cpu_finalize_init() in commit 439e1757 ("init, x86: Move
mem_encrypt_init() into arch_cpu_finalize_init()"), but a stale
declaration for the init function was left in <linux/init.h>.

And didn't cause any problems if you had X86_MEM_ENCRYPT enabled, which
apparently everybody involved did have.  See also commit 0a9567ac
("x86/mem_encrypt: Unbreak the AMD_MEM_ENCRYPT=n build") in this whole
sad saga of conflicting declarations for different situations.
Reported-by: Matthew Wilcox <willy@infradead.org>
Fixes: 439e1757 init, x86: Move mem_encrypt_init() into arch_cpu_finalize_init()
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Commit ca5e8632 ("mm/gup: remove vmas parameter from
get_user_pages_remote()") removed the vma argument from GUP handling,
and instead added a helper function (get_user_page_vma_remote()) that
looks it up separately using 'vma_lookup()'.  And then converted
existing users that needed a vma to use the helper instead.

However, the helper function intentionally acts exactly like the old
get_user_pages_remote() did, and only fills in 'vma' on successful page
lookup.  Fine so far.

However, __access_remote_vm() wants the vma even for the unsuccessful
case, and used to do a

	vma = vma_lookup(mm, addr);

explicitly to look it up when the get_user_page() failed.

However, that conversion commit incorrectly removed that vma lookup,
thinking that get_user_page_vma_remote() would have done it.  Not so.

So add the vma_lookup() back in.

Fixes: ca5e8632 ("mm/gup: remove vmas parameter from get_user_pages_remote()")
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'mm-nonmm-stable-2023-06-24-19-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-mm updates from Andrew Morton:

 - Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in top-level
   directories

 - Douglas Anderson has added a new "buddy" mode to the hardlockup
   detector. It permits the detector to work on architectures which
   cannot provide the required interrupts, by having CPUs periodically
   perform checks on other CPUs

 - Zhen Lei has enhanced kexec's ability to support two crash regions

 - Petr Mladek has done a lot of cleanup on the hard lockup detector's
   Kconfig entries

 - And the usual bunch of singleton patches in various places

* tag 'mm-nonmm-stable-2023-06-24-19-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (72 commits)
  kernel/time/posix-stubs.c: remove duplicated include
  ocfs2: remove redundant assignment to variable bit_off
  watchdog/hardlockup: fix typo in config HARDLOCKUP_DETECTOR_PREFER_BUDDY
  powerpc: move arch_trigger_cpumask_backtrace from nmi.h to irq.h
  devres: show which resource was invalid in __devm_ioremap_resource()
  watchdog/hardlockup: define HARDLOCKUP_DETECTOR_ARCH
  watchdog/sparc64: define HARDLOCKUP_DETECTOR_SPARC64
  watchdog/hardlockup: make HAVE_NMI_WATCHDOG sparc64-specific
  watchdog/hardlockup: declare arch_touch_nmi_watchdog() only in linux/nmi.h
  watchdog/hardlockup: make the config checks more straightforward
  watchdog/hardlockup: sort hardlockup detector related config values a logical way
  watchdog/hardlockup: move SMP barriers from common code to buddy code
  watchdog/buddy: simplify the dependency for HARDLOCKUP_DETECTOR_PREFER_BUDDY
  watchdog/buddy: don't copy the cpumask in watchdog_next_cpu()
  watchdog/buddy: cleanup how watchdog_buddy_check_hardlockup() is called
  watchdog/hardlockup: remove softlockup comment in touch_nmi_watchdog()
  watchdog/hardlockup: in watchdog_hardlockup_check() use cpumask_copy()
  watchdog/hardlockup: don't use raw_cpu_ptr() in watchdog_hardlockup_kick()
  watchdog/hardlockup: HAVE_NMI_WATCHDOG must implement watchdog_hardlockup_probe()
  watchdog/hardlockup: keep kernel.nmi_watchdog sysctl as 0444 if probe fails
  ...

Pull mm updates from Andrew Morton:

 - Yosry Ahmed brought back some cgroup v1 stats in OOM logs

 - Yosry has also eliminated cgroup's atomic rstat flushing

 - Nhat Pham adds the new cachestat() syscall. It provides userspace
   with the ability to query pagecache status - a similar concept to
   mincore() but more powerful and with improved usability

 - Mel Gorman provides more optimizations for compaction, reducing the
   prevalence of page rescanning

 - Lorenzo Stoakes has done some maintanance work on the
   get_user_pages() interface

 - Liam Howlett continues with cleanups and maintenance work to the
   maple tree code. Peng Zhang also does some work on maple tree

 - Johannes Weiner has done some cleanup work on the compaction code

 - David Hildenbrand has contributed additional selftests for
   get_user_pages()

 - Thomas Gleixner has contributed some maintenance and optimization
   work for the vmalloc code

 - Baolin Wang has provided some compaction cleanups,

 - SeongJae Park continues maintenance work on the DAMON code

 - Huang Ying has done some maintenance on the swap code's usage of
   device refcounting

 - Christoph Hellwig has some cleanups for the filemap/directio code

 - Ryan Roberts provides two patch series which yield some
   rationalization of the kernel's access to pte entries - use the
   provided APIs rather than open-coding accesses

 - Lorenzo Stoakes has some fixes to the interaction between pagecache
   and directio access to file mappings

 - John Hubbard has a series of fixes to the MM selftesting code

 - ZhangPeng continues the folio conversion campaign

 - Hugh Dickins has been working on the pagetable handling code, mainly
   with a view to reducing the load on the mmap_lock

 - Catalin Marinas has reduced the arm64 kmalloc() minimum alignment
   from 128 to 8

 - Domenico Cerasuolo has improved the zswap reclaim mechanism by
   reorganizing the LRU management

 - Matthew Wilcox provides some fixups to make gfs2 work better with the
   buffer_head code

 - Vishal Moola also has done some folio conversion work

 - Matthew Wilcox has removed the remnants of the pagevec code - their
   functionality is migrated over to struct folio_batch

* tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (380 commits)
  mm/hugetlb: remove hugetlb_set_page_subpool()
  mm: nommu: correct the range of mmap_sem_read_lock in task_mem()
  hugetlb: revert use of page_cache_next_miss()
  Revert "page cache: fix page_cache_next/prev_miss off by one"
  mm/vmscan: fix root proactive reclaim unthrottling unbalanced node
  mm: memcg: rename and document global_reclaim()
  mm: kill [add|del]_page_to_lru_list()
  mm: compaction: convert to use a folio in isolate_migratepages_block()
  mm: zswap: fix double invalidate with exclusive loads
  mm: remove unnecessary pagevec includes
  mm: remove references to pagevec
  mm: rename invalidate_mapping_pagevec to mapping_try_invalidate
  mm: remove struct pagevec
  net: convert sunrpc from pagevec to folio_batch
  i915: convert i915_gpu_error to use a folio_batch
  pagevec: rename fbatch_count()
  mm: remove check_move_unevictable_pages()
  drm: convert drm_gem_put_pages() to use a folio_batch
  i915: convert shmem_sg_free_table() to use a folio_batch
  scatterlist: add sg_set_folio()
  ...

Pull arm64 documentation move from Jonathan Corbet:
 "Move the arm64 architecture documentation under Documentation/arch/.

  This brings some order to the documentation directory, declutters the
  top-level directory, and makes the documentation organization more
  closely match that of the source"

* tag 'docs-arm64-move' of git://git.lwn.net/linux:
  perf arm-spe: Fix a dangling Documentation/arm64 reference
  mm: Fix a dangling Documentation/arm64 reference
  arm64: Fix dangling references to Documentation/arm64
  dt-bindings: fix dangling Documentation/arm64 reference
  docs: arm64: Move arm64 documentation under Documentation/arch/

Pull hardening updates from Kees Cook:
 "There are three areas of note:

  A bunch of strlcpy()->strscpy() conversions ended up living in my tree
  since they were either Acked by maintainers for me to carry, or got
  ignored for multiple weeks (and were trivial changes).

  The compiler option '-fstrict-flex-arrays=3' has been enabled
  globally, and has been in -next for the entire devel cycle. This
  changes compiler diagnostics (though mainly just -Warray-bounds which
  is disabled) and potential UBSAN_BOUNDS and FORTIFY _warning_
  coverage. In other words, there are no new restrictions, just
  potentially new warnings. Any new FORTIFY warnings we've seen have
  been fixed (usually in their respective subsystem trees). For more
  details, see commit df8fc4e9.

  The under-development compiler attribute __counted_by has been added
  so that we can start annotating flexible array members with their
  associated structure member that tracks the count of flexible array
  elements at run-time. It is possible (likely?) that the exact syntax
  of the attribute will change before it is finalized, but GCC and Clang
  are working together to sort it out. Any changes can be made to the
  macro while we continue to add annotations.

  As an example of that last case, I have a treewide commit waiting with
  such annotations found via Coccinelle:

    https://git.kernel.org/linus/adc5b3cb48a049563dc673f348eab7b6beba8a9b

  Also see commit dd06e72e for more details.

  Summary:

   - Fix KMSAN vs FORTIFY in strlcpy/strlcat (Alexander Potapenko)

   - Convert strreplace() to return string start (Andy Shevchenko)

   - Flexible array conversions (Arnd Bergmann, Wyes Karny, Kees Cook)

   - Add missing function prototypes seen with W=1 (Arnd Bergmann)

   - Fix strscpy() kerndoc typo (Arne Welzel)

   - Replace strlcpy() with strscpy() across many subsystems which were
     either Acked by respective maintainers or were trivial changes that
     went ignored for multiple weeks (Azeem Shaikh)

   - Remove unneeded cc-option test for UBSAN_TRAP (Nick Desaulniers)

   - Add KUnit tests for strcat()-family

   - Enable KUnit tests of FORTIFY wrappers under UML

   - Add more complete FORTIFY protections for strlcat()

   - Add missed disabling of FORTIFY for all arch purgatories.

   - Enable -fstrict-flex-arrays=3 globally

   - Tightening UBSAN_BOUNDS when using GCC

   - Improve checkpatch to check for strcpy, strncpy, and fake flex
     arrays

   - Improve use of const variables in FORTIFY

   - Add requested struct_size_t() helper for types not pointers

   - Add __counted_by macro for annotating flexible array size members"

* tag 'hardening-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (54 commits)
  netfilter: ipset: Replace strlcpy with strscpy
  uml: Replace strlcpy with strscpy
  um: Use HOST_DIR for mrproper
  kallsyms: Replace all non-returning strlcpy with strscpy
  sh: Replace all non-returning strlcpy with strscpy
  of/flattree: Replace all non-returning strlcpy with strscpy
  sparc64: Replace all non-returning strlcpy with strscpy
  Hexagon: Replace all non-returning strlcpy with strscpy
  kobject: Use return value of strreplace()
  lib/string_helpers: Change returned value of the strreplace()
  jbd2: Avoid printing outside the boundary of the buffer
  checkpatch: Check for 0-length and 1-element arrays
  riscv/purgatory: Do not use fortified string functions
  s390/purgatory: Do not use fortified string functions
  x86/purgatory: Do not use fortified string functions
  acpi: Replace struct acpi_table_slit 1-element array with flex-array
  clocksource: Replace all non-returning strlcpy with strscpy
  string: use __builtin_memcpy() in strlcpy/strlcat
  staging: most: Replace all non-returning strlcpy with strscpy
  drm/i2c: tda998x: Replace all non-returning strlcpy with strscpy
  ...

Pull pstore updates from Kees Cook:

 - Check for out-of-memory condition (Jiasheng Jiang)

 - Convert to platform remove callback returning void (Uwe Kleine-König)

* tag 'pstore-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  pstore/ram: Add check for kstrdup
  pstore/ram: Convert to platform remove callback returning void

Pull execve updates from Kees Cook:

 - Fix a few comments for correctness and typos (Baruch Siach)

 - Small simplifications for binfmt (Christophe JAILLET)

 - Set p_align to 4 for PT_NOTE in core dump (Fangrui Song)

* tag 'execve-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  binfmt_elf: fix comment typo s/reset/regset/
  elf: correct note name comment
  binfmt: Slightly simplify elf_fdpic_map_file()
  binfmt: Use struct_size()
  coredump, vmcore: Set p_align to 4 for PT_NOTE

Pull smack updates from Casey Schaufler:
 "There are two patches, both of which change how Smack initializes the
  SMACK64TRANSMUTE extended attribute.

  The first corrects the behavior of overlayfs, which creates inodes
  differently from other filesystems. The second ensures that transmute
  attributes specified by mount options are correctly assigned"

* tag 'Smack-for-6.5' of https://github.com/cschaufler/smack-next:
  smack: Record transmuting in smk_transmuted
  smack: Retrieve transmuting information in smack_inode_getsecurity()

Pull integrity subsystem updates from Mimi Zohar:
 "An i_version change, one bug fix, and three kernel doc fixes:

   - instead of IMA detecting file change by directly accesssing
     i_version, it now calls vfs_getattr_nosec().

   - fix a race condition when inserting a new node in the iint rb-tree"

* tag 'integrity-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  ima: Fix build warnings
  evm: Fix build warnings
  evm: Complete description of evm_inode_setattr()
  integrity: Fix possible multiple allocation in integrity_inode_get()
  IMA: use vfs_getattr_nosec to get the i_version

Pull lsm updates from Paul Moore:

 - A SafeSetID patch to correct what appears to be a cut-n-paste typo in
   the code causing a UID to be printed where a GID was desired.

   This is coming via the LSM tree because we haven't been able to get a
   response from the SafeSetID maintainer (Micah Morton) in several
   months. Hopefully we are able to get in touch with Micah, but until
   we do I'm going to pick them up in the LSM tree.

 - A small fix to the reiserfs LSM xattr code.

   We're continuing to work through some issues with the reiserfs code
   as we try to fixup the LSM xattr handling, but in the process we're
   uncovering some ugly problems in reiserfs and we may just end up
   removing the LSM xattr support in reiserfs prior to reiserfs'
   removal.

   For better or worse, this shouldn't impact any of the reiserfs users,
   as we discovered that LSM xattrs on reiserfs were completely broken,
   meaning no one is currently using the combo of reiserfs and a file
   labeling LSM.

 - A tweak to how the cap_user_data_t struct/typedef is declared in the
   header file to appease the Sparse gods.

 - In the process of trying to sort out the SafeSetID lost-maintainer
   problem I realized that I needed to update the labeled networking
   entry to "Supported".

 - Minor comment/documentation and spelling fixes.

* tag 'lsm-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
  device_cgroup: Fix kernel-doc warnings in device_cgroup
  SafeSetID: fix UID printed instead of GID
  MAINTAINERS: move labeled networking to "supported"
  capability: erase checker warnings about struct __user_cap_data_struct
  lsm: fix a number of misspellings
  reiserfs: Initialize sec->length in reiserfs_security_init().
  capability: fix kernel-doc warnings in capability.c

Pull selinux updates from Paul Moore:

 - Thanks to help from the MPTCP folks, it looks like we have finally
   sorted out a proper solution to the MPTCP socket labeling issue, see
   the new security_mptcp_add_subflow() LSM hook.

 - Fix the labeled NFS handling such that a labeled NFS share mounted
   prior to the initial SELinux policy load is properly labeled once a
   policy is loaded; more information in the commit description.

 - Two patches to security/selinux/Makefile, the first took the cleanups
   in v6.4 a bit further and the second removed the grouped targets
   support as that functionality doesn't appear to be properly supported
   prior to make v4.3.

 - Deprecate the "fs" object context type in SELinux policies. The fs
   object context type was an old vestige that was introduced back in
   v2.6.12-rc2 but never really used.

 - A number of small changes that remove dead code, clean up some
   awkward bits, and generally improve the quality of the code. See the
   individual commit descriptions for more information.

* tag 'selinux-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: avoid bool as identifier name
  selinux: fix Makefile for versions of make < v4.3
  selinux: make labeled NFS work when mounted before policy load
  selinux: cleanup exit_sel_fs() declaration
  selinux: deprecated fs ocon
  selinux: make header files self-including
  selinux: keep context struct members in sync
  selinux: Implement mptcp_add_subflow hook
  security, lsm: Introduce security_mptcp_add_subflow()
  selinux: small cleanups in selinux_audit_rule_init()
  selinux: declare read-only data arrays const
  selinux: retain const qualifier on string literal in avtab_hash_eval()
  selinux: drop return at end of void function avc_insert()
  selinux: avc: drop unused function avc_disable()
  selinux: adjust typos in comments
  selinux: do not leave dangling pointer behind
  selinux: more Makefile tweaks

Pull audit update from Paul Moore:
 "A single audit patch that resolves two compiler warnings regarding
  missing function prototypes"

* tag 'audit-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: avoid missing-prototype warnings

Pull landlock updates from Mickaël Salaün:
 "Add support for Landlock to UML.

  To do this, this fixes the way hostfs manages inodes according to the
  underlying filesystem [1]. They are now properly handled as for other
  filesystems, which enables Landlock support (and probably other
  features).

  This also extends Landlock's tests with 6 pseudo filesystems,
  including hostfs"

[1] https://lore.kernel.org/all/20230612191430.339153-1-mic@digikod.net/

* tag 'landlock-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  selftests/landlock: Add hostfs tests
  selftests/landlock: Add tests for pseudo filesystems
  selftests/landlock: Make mounts configurable
  selftests/landlock: Add supports_filesystem() helper
  selftests/landlock: Don't create useless file layouts
  hostfs: Fix ephemeral inodes

Pull cgroup updates from Tejun Heo:

 - Whenever cpuset needs to rebuild sched_domain, it walked all tasks
   looking for DEADLINE tasks as they need to be accounted on the new
   domain. Walking all tasks can be expensive and there may not be any
   DEADLINE tasks at all. Task iteration is now omitted if there are no
   DEADLINE tasks

 - Fixes DEADLINE bandwidth misaccounting after task migration failures

 - When no controller is enabled, -Wstringop-overflow warning is
   triggered. The fix patch added an early exit which is too eager and
   got reverted for now. Will fix later

 - Everything else is minor cleanups

* tag 'cgroup-for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  Revert "cgroup: Avoid -Wstringop-overflow warnings"
  cgroup/misc: Expose misc.current on cgroup v2 root
  cgroup: Avoid -Wstringop-overflow warnings
  cgroup: remove obsolete comment on cgroup_on_dfl()
  cgroup: remove unused task_cgroup_path()
  cgroup/cpuset: remove unneeded header files
  cgroup: make cgroup_is_threaded() and cgroup_is_thread_root() static
  rdmacg: fix kernel-doc warnings in rdmacg
  cgroup: Replace the css_set call with cgroup_get
  cgroup: remove unused macro for_each_e_css()
  cgroup: Update out-of-date comment in cgroup_migrate()
  cgroup: Replace all non-returning strlcpy with strscpy
  cgroup/cpuset: remove unneeded header files
  cgroup/cpuset: Free DL BW in case can_attach() fails
  sched/deadline: Create DL BW alloc, free & check overflow interface
  cgroup/cpuset: Iterate only if DEADLINE tasks are present
  sched/cpuset: Keep track of SCHED_DEADLINE task in cpusets
  sched/cpuset: Bring back cpuset_mutex
  cgroup/cpuset: Rename functions dealing with DEADLINE accounting

Pull ordered workqueue creation updates from Tejun Heo:
 "For historical reasons, unbound workqueues with max concurrency limit
  of 1 are considered ordered, even though the concurrency limit hasn't
  been system-wide for a long time.

  This creates ambiguity around whether ordered execution is actually
  required for correctness, which was actually confusing for e.g. btrfs
  (btrfs updates are being routed through the btrfs tree).

  There aren't that many users in the tree which use the combination and
  there are pending improvements to unbound workqueue affinity handling
  which will make inadvertent use of ordered workqueue a bigger loss.

  This clarifies the situation for most of them by updating the ones
  which require ordered execution to use alloc_ordered_workqueue().

  There are some conversions being routed through subsystem-specific
  trees and likely a few stragglers. Once they're all converted,
  workqueue can trigger a warning on unbound + @max_active==1 usages and
  eventually drop the implicit ordered behavior"

* tag 'wq-for-6.5-cleanup-ordered' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  rxrpc: Use alloc_ordered_workqueue() to create ordered workqueues
  net: qrtr: Use alloc_ordered_workqueue() to create ordered workqueues
  net: wwan: t7xx: Use alloc_ordered_workqueue() to create ordered workqueues
  dm integrity: Use alloc_ordered_workqueue() to create ordered workqueues
  media: amphion: Use alloc_ordered_workqueue() to create ordered workqueues
  scsi: NCR5380: Use default @max_active for hostdata->work_q
  media: coda: Use alloc_ordered_workqueue() to create ordered workqueues
  crypto: octeontx2: Use alloc_ordered_workqueue() to create ordered workqueues
  wifi: ath10/11/12k: Use alloc_ordered_workqueue() to create ordered workqueues
  wifi: mwifiex: Use default @max_active for workqueues
  wifi: iwlwifi: Use default @max_active for trans_pcie->rba.alloc_wq
  xen/pvcalls: Use alloc_ordered_workqueue() to create ordered workqueues
  virt: acrn: Use alloc_ordered_workqueue() to create ordered workqueues
  net: octeontx2: Use alloc_ordered_workqueue() to create ordered workqueues
  net: thunderx: Use alloc_ordered_workqueue() to create ordered workqueues
  greybus: Use alloc_ordered_workqueue() to create ordered workqueues
  powerpc, workqueue: Use alloc_ordered_workqueue() to create ordered workqueues

Pull workqueue updates from Tejun Heo:

 - Concurrency-managed per-cpu work items that hog CPUs and delay the
   execution of other work items are now automatically detected and
   excluded from concurrency management. Reporting on such work items
   can also be enabled through a config option.

 - Added tools/workqueue/wq_monitor.py which improves visibility into
   workqueue usages and behaviors.

 - Arnd's minimal fix for gcc-13 enum warning on 32bit compiles,
   superseded by commit afa4bb77 in mainline.

* tag 'wq-for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: Disable per-cpu CPU hog detection when wq_cpu_intensive_thresh_us is 0
  workqueue: Fix WARN_ON_ONCE() triggers in worker_enter_idle()
  workqueue: fix enum type for gcc-13
  workqueue: Track and monitor per-workqueue CPU time usage
  workqueue: Report work funcs that trigger automatic CPU_INTENSIVE mechanism
  workqueue: Automatically mark CPU-hogging work items CPU_INTENSIVE
  workqueue: Improve locking rule description for worker fields
  workqueue: Move worker_set/clr_flags() upwards
  workqueue: Re-order struct worker fields
  workqueue: Add pwq->stats[] and a monitoring script
  Further upgrade queue_work_on() comment

Pull xen updates from Juergen Gross:

 - three patches adding missing prototypes

 - a fix for finding the iBFT in a Xen dom0 for supporting diskless
   iSCSI boot

* tag 'for-linus-6.5-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86: xen: add missing prototypes
  x86/xen: add prototypes for paravirt mmu functions
  iscsi_ibft: Fix finding the iBFT under Xen Dom 0
  xen: xen_debug_interrupt prototype to global header

Pull s390 updates from Alexander Gordeev:

 - Fix the style of protected key API driver source: use x-mas tree for
   all local variable declarations

 - Rework protected key API driver to not use the struct pkey_protkey
   and pkey_clrkey anymore. Both structures have a fixed size buffer,
   but with the support of ECC protected key these buffers are not big
   enough. Use dynamic buffers internally and transparently for
   userspace

 - Add support for a new 'non CCA clear key token' with ECC clear keys
   supported: ECC P256, ECC P384, ECC P521, ECC ED25519 and ECC ED448.
   This makes it possible to derive a protected key from the ECC clear
   key input via PKEY_KBLOB2PROTK3 ioctl, while currently the only way
   to derive is via PCKMO instruction

 - The s390 PMU of PAI crypto and extension 1 NNPA counters use atomic_t
   for reference counting. Replace this with the proper data type
   refcount_t

 - Select ARCH_SUPPORTS_INT128, but limit this to clang for now, since
   gcc generates inefficient code, which may lead to stack overflows

 - Replace one-element array with flexible-array member in struct
   vfio_ccw_parent and refactor the rest of the code accordingly. Also,
   prefer struct_size() over sizeof() open- coded versions

 - Introduce OS_INFO_FLAGS_ENTRY pointing to a flags field and
   OS_INFO_FLAG_REIPL_CLEAR flag that informs a dumper whether the
   system memory should be cleared or not once dumped

 - Fix a hang when a user attempts to remove a VFIO-AP mediated device
   attached to a guest: add VFIO_DEVICE_GET_IRQ_INFO and
   VFIO_DEVICE_SET_IRQS IOCTLs and wire up the VFIO bus driver callback
   to request a release of the device

 - Fix calculation for R_390_GOTENT relocations for modules

 - Allow any user space process with CAP_PERFMON capability read and
   display the CPU Measurement facility counter sets

 - Rework large statically-defined per-CPU cpu_cf_events data structure
   and replace it with dynamically allocated structures created when a
   perf_event_open() system call is invoked or /dev/hwctr device is
   accessed

* tag 's390-6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/cpum_cf: rework PER_CPU_DEFINE of struct cpu_cf_events
  s390/cpum_cf: open access to hwctr device for CAP_PERFMON privileged process
  s390/module: fix rela calculation for R_390_GOTENT
  s390/vfio-ap: wire in the vfio_device_ops request callback
  s390/vfio-ap: realize the VFIO_DEVICE_SET_IRQS ioctl
  s390/vfio-ap: realize the VFIO_DEVICE_GET_IRQ_INFO ioctl
  s390/pkey: add support for ecc clear key
  s390/pkey: do not use struct pkey_protkey
  s390/pkey: introduce reverse x-mas trees
  s390/zcore: conditionally clear memory on reipl
  s390/ipl: add REIPL_CLEAR flag to os_info
  vfio/ccw: use struct_size() helper
  vfio/ccw: replace one-element array with flexible-array member
  s390: select ARCH_SUPPORTS_INT128
  s390/pai_ext: replace atomic_t with refcount_t
  s390/pai_crypto: replace atomic_t with refcount_t

Pull xtensa updates from Max Filippov:

 - clean up platform_* interface of the xtensa architecture

 - enable HAVE_ASM_MODVERSIONS

 - drop ARCH_WANT_FRAME_POINTERS

 - clean up unaligned access exception handler

 - provide handler for load/store exceptions

 - various small fixes and cleanups

* tag 'xtensa-20230627' of https://github.com/jcmvbkbc/linux-xtensa:
  xtensa: dump userspace code around the exception PC
  xtensa: rearrange show_stack output
  xtensa: add load/store exception handler
  xtensa: rearrange unaligned exception handler
  xtensa: always install slow handler for unaligned access exception
  xtensa: move early_trap_init from kasan_early_init to init_arch
  xtensa: drop ARCH_WANT_FRAME_POINTERS
  xtensa: report trax and perf counters in cpuinfo
  xtensa: add asm-prototypes.h
  xtensa: only build __strncpy_user with CONFIG_ARCH_HAS_STRNCPY_FROM_USER
  xtensa: drop bcopy implementation
  xtensa: drop EXPORT_SYMBOL for common_exception_return
  xtensa: boot-redboot: clean up Makefile
  xtensa: clean up default platform functions
  xtensa: drop platform_halt and platform_power_off
  xtensa: drop platform_restart
  xtensa: drop platform_heartbeat
  xtensa: xt2000: drop empty platform_init

This reverts commit 6ebe94ba.

The patch "nios2: Convert __pte_free_tlb() to use ptdescs" was supposed
to go together with a patchset that Vishal Moola had planned taking it
through the mm tree. By just having this patch, all NIOS2 builds are
broken.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull objtool updates from Ingo Molar:
 "Build footprint & performance improvements:

   - Reduce memory usage with CONFIG_DEBUG_INFO=y

     In the worst case of an allyesconfig+CONFIG_DEBUG_INFO=y kernel,
     DWARF creates almost 200 million relocations, ballooning objtool's
     peak heap usage to 53GB. These patches reduce that to 25GB.

     On a distro-type kernel with kernel IBT enabled, they reduce
     objtool's peak heap usage from 4.2GB to 2.8GB.

     These changes also improve the runtime significantly.

  Debuggability improvements:

   - Add the unwind_debug command-line option, for more extend unwinding
     debugging output
   - Limit unreachable warnings to once per function
   - Add verbose option for disassembling affected functions
   - Include backtrace in verbose mode
   - Detect missing __noreturn annotations
   - Ignore exc_double_fault() __noreturn warnings
   - Remove superfluous global_noreturns entries
   - Move noreturn function list to separate file
   - Add __kunit_abort() to noreturns

  Unwinder improvements:

   - Allow stack operations in UNWIND_HINT_UNDEFINED regions
   - drm/vmwgfx: Add unwind hints around RBP clobber

  Cleanups:

   - Move the x86 entry thunk restore code into thunk functions
   - x86/unwind/orc: Use swap() instead of open coding it
   - Remove unnecessary/unused variables

  Fixes for modern stack canary handling"

* tag 'objtool-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
  x86/orc: Make the is_callthunk() definition depend on CONFIG_BPF_JIT=y
  objtool: Skip reading DWARF section data
  objtool: Free insns when done
  objtool: Get rid of reloc->rel[a]
  objtool: Shrink elf hash nodes
  objtool: Shrink reloc->sym_reloc_entry
  objtool: Get rid of reloc->jump_table_start
  objtool: Get rid of reloc->addend
  objtool: Get rid of reloc->type
  objtool: Get rid of reloc->offset
  objtool: Get rid of reloc->idx
  objtool: Get rid of reloc->list
  objtool: Allocate relocs in advance for new rela sections
  objtool: Add for_each_reloc()
  objtool: Don't free memory in elf_close()
  objtool: Keep GElf_Rel[a] structs synced
  objtool: Add elf_create_section_pair()
  objtool: Add mark_sec_changed()
  objtool: Fix reloc_hash size
  objtool: Consolidate rel/rela handling
  ...

Pull x86 mm updates from Ingo Molnar:

 - Remove Xen-PV leftovers from init_32.c

 - Fix __swp_entry_to_pte() warning splat for Xen PV guests, triggered
   on CONFIG_DEBUG_VM_PGTABLE=y

* tag 'x86-mm-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Remove Xen-PV leftovers from init_32.c
  x86/mm: Fix __swp_entry_to_pte() for Xen PV guests

Pull perf events updates from Ingo Molnar:

 - Rework & fix the event forwarding logic by extending the core
   interface.

   This fixes AMD PMU events that have to be forwarded from the
   core PMU to the IBS PMU.

 - Add self-tests to test AMD IBS invocation via core PMU events

 - Clean up Intel FixCntrCtl MSR encoding & handling

* tag 'perf-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Re-instate the linear PMU search
  perf/x86/intel: Define bit macros for FixCntrCtl MSR
  perf test: Add selftest to test IBS invocation via core pmu events
  perf/core: Remove pmu linear searching code
  perf/ibs: Fix interface via core pmu events
  perf/core: Rework forwarding of {task|cpu}-clock events

Pull locking updates from Ingo Molnar:

 - Introduce cmpxchg128() -- aka. the demise of cmpxchg_double()

   The cmpxchg128() family of functions is basically & functionally the
   same as cmpxchg_double(), but with a saner interface.

   Instead of a 6-parameter horror that forced u128 - u64/u64-halves
   layout details on the interface and exposed users to complexity,
   fragility & bugs, use a natural 3-parameter interface with u128
   types.

 - Restructure the generated atomic headers, and add kerneldoc comments
   for all of the generic atomic{,64,_long}_t operations.

   The generated definitions are much cleaner now, and come with
   documentation.

 - Implement lock_set_cmp_fn() on lockdep, for defining an ordering when
   taking multiple locks of the same type.

   This gets rid of one use of lockdep_set_novalidate_class() in the
   bcache code.

 - Fix raw_cpu_generic_try_cmpxchg() bug due to an unintended variable
   shadowing generating garbage code on Clang on certain ARM builds.

* tag 'locking-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits)
  locking/atomic: scripts: fix ${atomic}_dec_if_positive() kerneldoc
  percpu: Fix self-assignment of __old in raw_cpu_generic_try_cmpxchg()
  locking/atomic: treewide: delete arch_atomic_*() kerneldoc
  locking/atomic: docs: Add atomic operations to the driver basic API documentation
  locking/atomic: scripts: generate kerneldoc comments
  docs: scripts: kernel-doc: accept bitwise negation like ~@var
  locking/atomic: scripts: simplify raw_atomic*() definitions
  locking/atomic: scripts: simplify raw_atomic_long*() definitions
  locking/atomic: scripts: split pfx/name/sfx/order
  locking/atomic: scripts: restructure fallback ifdeffery
  locking/atomic: scripts: build raw_atomic_long*() directly
  locking/atomic: treewide: use raw_atomic*_<op>()
  locking/atomic: scripts: add trivial raw_atomic*_<op>()
  locking/atomic: scripts: factor out order template generation
  locking/atomic: scripts: remove leftover "${mult}"
  locking/atomic: scripts: remove bogus order parameter
  locking/atomic: xtensa: add preprocessor symbols
  locking/atomic: x86: add preprocessor symbols
  locking/atomic: sparc: add preprocessor symbols
  locking/atomic: sh: add preprocessor symbols
  ...

Pull scheduler updates from Ingo Molnar:
 "Scheduler SMP load-balancer improvements:

   - Avoid unnecessary migrations within SMT domains on hybrid systems.

     Problem:

        On hybrid CPU systems, (processors with a mixture of
        higher-frequency SMT cores and lower-frequency non-SMT cores),
        under the old code lower-priority CPUs pulled tasks from the
        higher-priority cores if more than one SMT sibling was busy -
        resulting in many unnecessary task migrations.

     Solution:

        The new code improves the load balancer to recognize SMT cores
        with more than one busy sibling and allows lower-priority CPUs
        to pull tasks, which avoids superfluous migrations and lets
        lower-priority cores inspect all SMT siblings for the busiest
        queue.

   - Implement the 'runnable boosting' feature in the EAS balancer:
     consider CPU contention in frequency, EAS max util & load-balance
     busiest CPU selection.

     This improves CPU utilization for certain workloads, while leaves
     other key workloads unchanged.

  Scheduler infrastructure improvements:

   - Rewrite the scheduler topology setup code by consolidating it into
     the build_sched_topology() helper function and building it
     dynamically on the fly.

   - Resolve the local_clock() vs. noinstr complications by rewriting
     the code: provide separate sched_clock_noinstr() and
     local_clock_noinstr() functions to be used in instrumentation code,
     and make sure it is all instrumentation-safe.

  Fixes:

   - Fix a kthread_park() race with wait_woken()

   - Fix misc wait_task_inactive() bugs unearthed by the -rt merge:
       - Fix UP PREEMPT bug by unifying the SMP and UP implementations
       - Fix task_struct::saved_state handling

   - Fix various rq clock update bugs, unearthed by turning on the rq
     clock debugging code.

   - Fix the PSI WINDOW_MIN_US trigger limit, which was easy to trigger
     by creating enough cgroups, by removing the warnign and restricting
     window size triggers to PSI file write-permission or
     CAP_SYS_RESOURCE.

   - Propagate SMT flags in the topology when removing degenerate domain

   - Fix grub_reclaim() calculation bug in the deadline scheduler code

   - Avoid resetting the min update period when it is unnecessary, in
     psi_trigger_destroy().

   - Don't balance a task to its current running CPU in load_balance(),
     which was possible on certain NUMA topologies with overlapping
     groups.

   - Fix the sched-debug printing of rq->nr_uninterruptible

  Cleanups:

   - Address various -Wmissing-prototype warnings, as a preparation to
     (maybe) enable this warning in the future.

   - Remove unused code

   - Mark more functions __init

   - Fix shadow-variable warnings"

* tag 'sched-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits)
  sched/core: Avoid multiple calling update_rq_clock() in __cfsb_csd_unthrottle()
  sched/core: Avoid double calling update_rq_clock() in __balance_push_cpu_stop()
  sched/core: Fixed missing rq clock update before calling set_rq_offline()
  sched/deadline: Update GRUB description in the documentation
  sched/deadline: Fix bandwidth reclaim equation in GRUB
  sched/wait: Fix a kthread_park race with wait_woken()
  sched/topology: Mark set_sched_topology() __init
  sched/fair: Rename variable cpu_util eff_util
  arm64/arch_timer: Fix MMIO byteswap
  sched/fair, cpufreq: Introduce 'runnable boosting'
  sched/fair: Refactor CPU utilization functions
  cpuidle: Use local_clock_noinstr()
  sched/clock: Provide local_clock_noinstr()
  x86/tsc: Provide sched_clock_noinstr()
  clocksource: hyper-v: Provide noinstr sched_clock()
  clocksource: hyper-v: Adjust hv_read_tsc_page_tsc() to avoid special casing U64_MAX
  x86/vdso: Fix gettimeofday masking
  math64: Always inline u128 version of mul_u64_u64_shr()
  s390/time: Provide sched_clock_noinstr()
  loongarch: Provide noinstr sched_clock_read()
  ...

Pull SGX update from Borislav Petkov:

 - A fix to avoid using a list iterator variable after the loop it is
   used in

* tag 'x86_sgx_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Avoid using iterator after loop in sgx_mmu_notifier_release()

Pull x86 SEV updates from Borislav Petkov:

 - Some SEV and CC platform helpers cleanup and simplifications now that
   the usage patterns are becoming apparent

[ I'm sure I'm the only one that has gets confused by all the TLAs, but
  in case there are others: here SEV is AMD's "Secure Encrypted
  Virtualization" and CC is generic "Confidential Computing".

  There's also Intel SGX (Software Guard Extensions) and TDX (Trust
  Domain Extensions), along with all the vendor memory encryption
  extensions (SME, TSME, TME, and WTF).

  And then we have arm64 with RMA and CCA, and I probably forgot another
  dozen or so related acronyms    - Linus ]

* tag 'x86_sev_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/coco: Get rid of accessor functions
  x86/sev: Get rid of special sev_es_enable_key
  x86/coco: Mark cc_platform_has() and descendants noinstr

Pull x86 mtrr updates from Borislav Petkov:
 "A serious scrubbing of the MTRR code including adding a new map
  mechanism in order to look up the memory type of a region easily.

  Also address memory range lookup issues like returning an invalid
  memory type. Furthermore, this handles the decoupling of PAT from MTRR
  more naturally.

  All work by Juergen Gross"

* tag 'x86_mtrr_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/xen: Set default memory type for PV guests to WB
  x86/mtrr: Unify debugging printing
  x86/mtrr: Remove unused code
  x86/mm: Only check uniform after calling mtrr_type_lookup()
  x86/mtrr: Don't let mtrr_type_lookup() return MTRR_TYPE_INVALID
  x86/mtrr: Use new cache_map in mtrr_type_lookup()
  x86/mtrr: Add mtrr=debug command line option
  x86/mtrr: Construct a memory map with cache modes
  x86/mtrr: Add get_effective_type() service function
  x86/mtrr: Allocate mtrr_value array dynamically
  x86/mtrr: Move 32-bit code from mtrr.c to legacy.c
  x86/mtrr: Have only one set_mtrr() variant
  x86/mtrr: Replace vendor tests in MTRR code
  x86/xen: Set MTRR state when running as Xen PV initial domain
  x86/hyperv: Set MTRR state when running as SEV-SNP Hyper-V guest
  x86/mtrr: Support setting MTRR state for software defined MTRRs
  x86/mtrr: Replace size_or_mask and size_and_mask with a much easier concept
  x86/mtrr: Remove physical address size calculation

Pull misc x86 updates from Borislav Petkov:

 - Remove the local symbols prefix of the get/put_user() exception
   handling symbols so that tools do not get confused by the presence of
   code belonging to the wrong symbol/not belonging to any symbol

 - Improve csum_partial()'s performance

 - Some improvements to the kcpuid tool

* tag 'x86_misc_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/lib: Make get/put_user() exception handling a visible symbol
  x86/csum: Fix clang -Wuninitialized in csum_partial()
  x86/csum: Improve performance of `csum_partial`
  tools/x86/kcpuid: Add .gitignore
  tools/x86/kcpuid: Dump the correct CPUID function in error

Pull x86 microcode loader updates from Borislav Petkov:

 - Load late on both SMT threads on AMD, just like it is being done in
   the early loading procedure

  - Cleanups

* tag 'x86_microcode_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/AMD: Load late on both threads too
  x86/microcode/amd: Remove unneeded pointer arithmetic
  x86/microcode/AMD: Get rid of __find_equiv_id()

Pull arm documentation move from Jonathan Corbet:
 "Move the Arm architecture documentation under Documentation/arch/.

  This brings some order to the documentation directory, declutters the
  top-level directory, and makes the documentation organization more
  closely match that of the source"

* tag 'docs-arm-move' of git://git.lwn.net/linux:
  dt-bindings: Update Documentation/arm references
  docs: update some straggling Documentation/arm references
  crypto: update some Arm documentation references
  mips: update a reference to a moved Arm Document
  arm64: Update Documentation/arm references
  arm: update in-source documentation references
  arm: docs: Move Arm documentation to Documentation/arch/

Pull documentation updates from Jonathan Corbet:
 "It's been a relatively calm cycle in docsland. We do have:

   - Some initial page-table documentation from Linus (the other Linus)

   - Regression-handling documentation improvements from Thorsten

   - Addition of kerneldoc documentation for the ERR_PTR() and related
     macros from James Seo

  ... and the usual collection of fixes and updates"

* tag 'docs-6.5' of git://git.lwn.net/linux:
  docs: consolidate storage interfaces
  Documentation: update git configuration for Link: tag
  Documentation: KVM: make corrections to vcpu-requests.rst
  Documentation: KVM: make corrections to ppc-pv.rst
  Documentation: KVM: make corrections to locking.rst
  Documentation: KVM: make corrections to halt-polling.rst
  Documentation: virt: correct location of haltpoll module params
  Documentation/mm: Initial page table documentation
  docs: crypto: async-tx-api: fix typo in struct name
  docs/doc-guide: Clarify how to write tables
  docs: handling-regressions: rework section about fixing procedures
  docs: process: fix a typoed cross-reference
  docs: submitting-patches: Discuss interleaved replies
  MAINTAINERS: direct process doc changes to a dedicated ML
  Documentation: core-api: Add error pointer functions to kernel-api
  err.h: Add missing kerneldocs for error pointer functions
  Documentation: conf.py: Add __force to c_id_attributes
  docs: clarify KVM related kernel parameters' descriptions
  docs: consolidate human interface subsystems
  docs: admin-guide: Add information about intel_pstate active mode