Commit Graph

1282636 Commits

Author SHA1 Message Date
Linus Torvalds
9319657544 - Cleanup the 8-byte getuser() asm case
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Merge tag 'x86_core_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 uaccess update from Borislav Petkov:

 - Cleanup the 8-byte getuser() asm case

* tag 'x86_core_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/uaccess: Improve the 8-byte getuser() case
2024-07-15 19:49:55 -07:00
Linus Torvalds
98896d8795 - Unrelated x86/cc changes queued here to avoid ugly cross-merges and
conflicts:
 
    - Carve out CPU hotplug function declarations into a separate header
      with the goal to be able to use the lockdep assertions in a more
      flexible manner
 
    - As a result, refactor cacheinfo code after carving out a function
      to return the cache ID associated with a given cache level
 
    -  Cleanups
 
 - Add support to be able to kexec TDX guests. For that
 
    - Expand ACPI MADT CPU offlining support
 
    - Add machinery to prepare CoCo guests memory before kexec-ing into a new
      kernel
 
    - Cleanup, readjust and massage related code
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Merge tag 'x86_cc_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 confidential computing updates from Borislav Petkov:
 "Unrelated x86/cc changes queued here to avoid ugly cross-merges and
  conflicts:

   - Carve out CPU hotplug function declarations into a separate header
     with the goal to be able to use the lockdep assertions in a more
     flexible manner

   - As a result, refactor cacheinfo code after carving out a function
     to return the cache ID associated with a given cache level

   - Cleanups

  Add support to be able to kexec TDX guests:

   - Expand ACPI MADT CPU offlining support

   - Add machinery to prepare CoCo guests memory before kexec-ing into a
     new kernel

   - Cleanup, readjust and massage related code"

* tag 'x86_cc_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  ACPI: tables: Print MULTIPROC_WAKEUP when MADT is parsed
  x86/acpi: Add support for CPU offlining for ACPI MADT wakeup method
  x86/mm: Introduce kernel_ident_mapping_free()
  x86/smp: Add smp_ops.stop_this_cpu() callback
  x86/acpi: Do not attempt to bring up secondary CPUs in the kexec case
  x86/acpi: Rename fields in the acpi_madt_multiproc_wakeup structure
  x86/mm: Do not zap page table entries mapping unaccepted memory table during kdump
  x86/mm: Make e820__end_ram_pfn() cover E820_TYPE_ACPI ranges
  x86/tdx: Convert shared memory back to private on kexec
  x86/mm: Add callbacks to prepare encrypted memory for kexec
  x86/tdx: Account shared memory
  x86/mm: Return correct level from lookup_address() if pte is none
  x86/mm: Make x86_platform.guest.enc_status_change_*() return an error
  x86/kexec: Keep CR4.MCE set during kexec for TDX guest
  x86/relocate_kernel: Use named labels for less confusion
  cpu/hotplug, x86/acpi: Disable CPU offlining for ACPI MADT wakeup
  cpu/hotplug: Add support for declaring CPU offlining not supported
  x86/apic: Mark acpi_mp_wake_* variables as __ro_after_init
  x86/acpi: Extract ACPI MADT wakeup code into a separate file
  x86/kexec: Remove spurious unconditional JMP from from identity_mapped()
  ...
2024-07-15 19:36:01 -07:00
Linus Torvalds
181a984b7d - Remove an unused function and the documentation of an already removed
cmdline parameter
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Merge tag 'x86_cleanups_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Borislav Petkov:

 - Remove an unused function and the documentation of an already removed
   cmdline parameter

* tag 'x86_cleanups_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Remove unused function __fortify_panic()
  Documentation: Remove "mfgpt_irq=" from the kernel-parameters.txt file
2024-07-15 19:34:20 -07:00
Linus Torvalds
4578d072fa - Add a check to warn when cmdline parsing happens before the final cmdline
string has been built and thus arguments can get lost
 
  - Code cleanups and simplifications
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Merge tag 'x86_boot_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 boot updates from Borislav Petkov:

 - Add a check to warn when cmdline parsing happens before the final
   cmdline string has been built and thus arguments can get lost

 - Code cleanups and simplifications

* tag 'x86_boot_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/setup: Warn when option parsing is done too early
  x86/boot: Clean up the arch/x86/boot/main.c code a bit
  x86/boot: Use current_stack_pointer to avoid asm() in init_heap()
2024-07-15 19:31:59 -07:00
Linus Torvalds
208c6772d3 - This is basically PeterZ's idea to nest the alternative macros to avoid the
need to "spell out" the number of alternates in an ALTERNATIVE_n() macro and
   thus have an ever-increasing complexity in those definitions.
 
   For ease of bisection, the old macros are converted to the new, nested
   variants in a step-by-step manner so that in case an issue is encountered
   during testing, one can pinpoint the place where it fails easier. Because
   debugging alternatives is a serious pain.
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Merge tag 'x86_alternatives_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 alternatives updates from Borislav Petkov:
 "This is basically PeterZ's idea to nest the alternative macros to
  avoid the need to "spell out" the number of alternates in an
  ALTERNATIVE_n() macro and thus have an ever-increasing complexity in
  those definitions.

  For ease of bisection, the old macros are converted to the new, nested
  variants in a step-by-step manner so that in case an issue is
  encountered during testing, one can pinpoint the place where it fails
  easier.

  Because debugging alternatives is a serious pain"

* tag 'x86_alternatives_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/alternatives, kvm: Fix a couple of CALLs without a frame pointer
  x86/alternative: Replace the old macros
  x86/alternative: Convert the asm ALTERNATIVE_3() macro
  x86/alternative: Convert the asm ALTERNATIVE_2() macro
  x86/alternative: Convert the asm ALTERNATIVE() macro
  x86/alternative: Convert ALTERNATIVE_3()
  x86/alternative: Convert ALTERNATIVE_TERNARY()
  x86/alternative: Convert alternative_call_2()
  x86/alternative: Convert alternative_call()
  x86/alternative: Convert alternative_io()
  x86/alternative: Convert alternative_input()
  x86/alternative: Convert alternative_2()
  x86/alternative: Convert alternative()
  x86/alternatives: Add nested alternatives macros
  x86/alternative: Zap alternative_ternary()
2024-07-15 19:11:28 -07:00
Linus Torvalds
1467b49869 - A cleanup and a correction to the error injection driver to inject
a MCA_MISC value only when one has actually been supplied by the user
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Merge tag 'ras_core_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RAS updates from Borislav Petkov:

 - A cleanup and a correction to the error injection driver to inject a
   MCA_MISC value only when one has actually been supplied by the user

* tag 'ras_core_for_v6.11_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Remove unused variable and return value in machine_check_poll()
  x86/mce/inject: Only write MCA_MISC when a value has been supplied
2024-07-15 18:22:48 -07:00
Linus Torvalds
8028e290b6 - The AMD memory controllers data fabric version 4.5 supports
non-power-of-2 denormalization in the sense that certain bits of the
   system physical address cannot be reconstructed from the normalized
   address reported by the RAS hardware. Add support for handling such
   addresses
 
 - Switch the EDAC drivers to the new Intel CPU model defines
 
 - The usual fixes and cleanups all over the place
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Merge tag 'edac_updates_for_v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Borislav Petkov:

 - The AMD memory controllers data fabric version 4.5 supports
   non-power-of-2 denormalization in the sense that certain bits of the
   system physical address cannot be reconstructed from the normalized
   address reported by the RAS hardware. Add support for handling such
   addresses

 - Switch the EDAC drivers to the new Intel CPU model defines

 - The usual fixes and cleanups all over the place

* tag 'edac_updates_for_v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC: Add missing MODULE_DESCRIPTION() macros
  EDAC/dmc520: Use devm_platform_ioremap_resource()
  EDAC/igen6: Add Intel Arrow Lake-U/H SoCs support
  RAS/AMD/FMPM: Use atl internal.h for INVALID_SPA
  RAS/AMD/ATL: Implement DF 4.5 NP2 denormalization
  RAS/AMD/ATL: Validate address map when information is gathered
  RAS/AMD/ATL: Expand helpers for adding and removing base and hole
  RAS/AMD/ATL: Read DRAM hole base early
  RAS/AMD/ATL: Add amd_atl pr_fmt() prefix
  RAS/AMD/ATL: Add a missing module description
  EDAC, i10nm: make skx_common.o a separate module
  EDAC/skx: Switch to new Intel CPU model defines
  EDAC/sb_edac: Switch to new Intel CPU model defines
  EDAC, pnd2: Switch to new Intel CPU model defines
  EDAC/i10nm: Switch to new Intel CPU model defines
  EDAC/ghes: Add missing newline to pr_info() statement
  RAS/AMD/ATL: Add missing newline to pr_info() statement
  EDAC/thunderx: Remove unused struct error_syndrome
2024-07-15 18:20:24 -07:00
Linus Torvalds
e23dd95cfd spi: Updates for v6.11
There's some quite exciting core work in this release, we've got the
 beginnings of support for hardware initiated transfers which is itself
 independently useful for optimising fast paths in existing drivers.
 
 We also have a rework of the DMA mapping which allows finer grained
 decisions about DMA mapping messages and also helps remove some bodges
 that we'd had.
 
 Otherwise it's a fairly quiet release, a few new drivers and features
 for existing drivers, together with various cleanups and DT binding
 conversions.
 
 One regmap SPI fix made it's way in here too which I should probably
 have sent as a regmap fix instead.
 
  - Support for pre-optimising messages, reducing the overhead for
    messages that are repeatedly used (eg, reading the interrupt status
    from a device).  This will also be used for hardware initiated
    transfers in future.
  - A reworking of how DMA mapping is done, introducing a new helper and
    allowing the DMA mapping decision to be done per transfer instead of
    per message.
  - Support for Atmel SAMA7D64, Freescale LX2160A DSPI and WCH CH341A.
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Merge tag 'spi-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "There's some quite exciting core work in this release, we've got the
  beginnings of support for hardware initiated transfers which is itself
  independently useful for optimising fast paths in existing drivers.

  We also have a rework of the DMA mapping which allows finer grained
  decisions about DMA mapping messages and also helps remove some bodges
  that we'd had.

  Otherwise it's a fairly quiet release, a few new drivers and features
  for existing drivers, together with various cleanups and DT binding
  conversions.

  One regmap SPI fix made it's way in here too which I should probably
  have sent as a regmap fix instead.

  Summary:

   - Support for pre-optimising messages, reducing the overhead for
     messages that are repeatedly used (eg, reading the interrupt status
     from a device). This will also be used for hardware initiated
     transfers in future.

   - A reworking of how DMA mapping is done, introducing a new helper
     and allowing the DMA mapping decision to be done per transfer
     instead of per message.

   - Support for Atmel SAMA7D64, Freescale LX2160A DSPI and WCH CH341A"

* tag 'spi-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (72 commits)
  spi: dt-bindings: at91: Add sama7d65 compatible string
  spi: add ch341a usb2spi driver
  spi: dt-bindings: fsl-dspi: add compatible string 'fsl,lx2160a-dspi'
  spi: dt-bindings: fsl-dspi: add dmas and dma-names properties
  spi: spi: Remove unnecessary ‘0’ values from status
  spi: spi: Remove unnecessary ‘0’ values from rc
  spi: xcomm: fix coding style
  spi: xcomm: remove i2c_set_clientdata()
  spi: xcomm: make use of devm_spi_alloc_host()
  spi: xcomm: add gpiochip support
  spi: dt-bindings: snps,dw-apb-ssi.yaml: update compatible property
  spi: dt-bindings: fsl-dspi: Convert to yaml format
  spi: fsl-dspi: use common proptery 'spi-cs-setup(hold)-delay-ns'
  spi: axi-spi-engine: remove platform_set_drvdata()
  spi: spi-fsl-lpspi: Pass pm_ptr()
  spi: spi-imx: Pass pm_ptr()
  spi: spi-fsl-lpspi: Switch to SYSTEM_SLEEP_PM_OPS()
  spi: spi-imx: Switch to RUNTIME_PM_OPS/SYSTEM_SLEEP_PM_OPS()
  spi: add EXPORT_SYMBOL_GPL(devm_spi_optimize_message)
  spi: add devm_spi_optimize_message() helper
  ...
2024-07-15 18:03:43 -07:00
Linus Torvalds
584aeccc0b regulator: Updates for v6.11
This s a very quiet release for the regulator API, we have a few new
 devices (most of which are just ID updates) and one new fairly
 specialist core feature for use in interrupt context.
 
  - An API allowing lockless enable/disable for regulators acquired in
    exclusive mode, for use in interrupt contexts.
  - A rewrite of the MedaTek DVFSRC regulator driver which apparently
    never worked.
  - Support for Mediaktek MT6312, Qualcomm QCA6390 and WCN7850, Renesas
    RZ/G2L USB VBUS regulator and ST Microelectronics STM32MP13.
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Merge tag 'regulator-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This s a very quiet release for the regulator API, we have a few new
  devices (most of which are just ID updates) and one new fairly
  specialist core feature for use in interrupt context.

   - An API allowing lockless enable/disable for regulators acquired in
     exclusive mode, for use in interrupt contexts

   - A rewrite of the MedaTek DVFSRC regulator driver which apparently
     never worked

   - Support for Mediaktek MT6312, Qualcomm QCA6390 and WCN7850, Renesas
     RZ/G2L USB VBUS regulator and ST Microelectronics STM32MP13"

* tag 'regulator-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (26 commits)
  regulator: dt-bindings: pca9450: Make interrupt optional
  regulator: pca9450: Make IRQ optional
  dt-bindings: regulator: sprd,sc2731-regulator: convert to YAML
  regulator: max77857: Constify struct regmap_config
  regulator: da9121: Constify struct regmap_config
  dt-bindings: regulator: ti,tps65132: document VIN supply
  dt-bindings: mfd: twl: Fix example
  regulator: Add Renesas RZ/G2L USB VBUS regulator driver
  regulator: core: Add helper for allow HW access to enable/disable regulator
  regulator: Add bindings for MediaTek DVFSRC Regulators
  regulator: Add refactored mtk-dvfsrc-regulator driver
  regulator: Remove mtk-dvfsrc-regulator.c
  regulator: userspace-consumer: quiet device deferral
  regulator: dt-bindings: mt6315: Document MT6319 PMIC
  regulator: add missing MODULE_DESCRIPTION() macro
  dt-bindings: regulator: twl-regulator: convert to yaml
  regulator: dt-bindings: describe the PMU module of the WCN7850 package
  regulator: dt-bindings: describe the PMU module of the QCA6390 package
  regulator: dt-bindings: rtq2208: Add specified fixed LDO VOUT property
  regulator: rtq2208: Add fixed LDO VOUT property and check that matches the constraints
  ...
2024-07-15 17:59:12 -07:00
Linus Torvalds
25617a5c45 regmap: Updates for v6.11
There's one new feature here, a regmap_multi_reg_read() matching the
 existing write function which has some IIO users coming.  This allows
 atomic reads from multiple registers without the need to wrap a higher
 level lock in the client driver just for regmap (which already has locks
 anyway).  We also have one fix for the KUnit tests, and a bunch of
 cleanups.
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Merge tag 'regmap-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "There's one new feature here, a regmap_multi_reg_read() matching the
  existing write function which has some IIO users coming.

  This allows atomic reads from multiple registers without the need to
  wrap a higher level lock in the client driver just for regmap (which
  already has locks anyway).

  We also have one fix for the KUnit tests, and a bunch of cleanups"

* tag 'regmap-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: kunit: Add test cases for regmap_multi_reg_(read,write}()
  regmap: Implement regmap_multi_reg_read()
  regmap-irq: handle const struct regmap_irq_sub_irq_map
  const_structs.checkpatch: add regmap structs
  regmap: add missing MODULE_DESCRIPTION() macros
  regmap-i2c: add missing MODULE_DESCRIPTION() macro
  regmap: kunit: Use array_size() and sizeof(*ptr) consistently
  regmap: maple: Switch to use kmemdup_array()
  regmap: cache: Switch to use kmemdup_array()
  regmap: cache: Use correct type of the rb_for_each() parameter
  regmap: Switch to use kmemdup_array()
  regmap: kunit: add missing MODULE_DESCRIPTION()
  regmap: kunit: Fix memory leaks in gen_regmap() and gen_raw_regmap()
2024-07-15 17:56:11 -07:00
Linus Torvalds
b3c0eccb48 gpio updates for v6.11-rc1
GPIOLIB core:
 - rework kfifo handling rework in the character device code
 - improve the labeling of GPIOs requested as interrupts and show more info
   on interrupt-only GPIOs in debugfs
 - remove unused APIs
 - unexport interfaces that are only used from the core GPIO code
 - drop the return value from gpiochip_set_desc_names() as it cannot fail
 - move a string array definition out of a header and into a specific
   compilation unit
 - convert the last user of gpiochip_get_desc() other than GPIO core to using
   a safer alternative
 - use array_index_nospec() where applicable
 
 New drivers:
 - add a "virtual GPIO consumer" module that allows requesting GPIOs from actual
   hardware and driving tests of the in-kernel GPIO API from user-space over
   debugfs
 - add a GPIO-based "sloppy" logic analyzer module useful for "first glance"
   debugging on remote boards
 
 Driver improvements:
 - add support for a new model to gpio-pca953x
 - lock GPIOs as interrupts in gpio-sim when the lines are requested as irqs
   via the simulator domain + some other minor improvements
 - improve error reporting in gpio-syscon
 - convert gpio-ath79 to using dynamic GPIO base and range
 - use pcibios_err_to_errno() for converting PCIBIOS error codes to errno
   vaues in gpio-amd8111 and gpio-rdc321x
 - allow building gpio-brcmstb for the BCM2835 architecture
 
 DT bindings:
 - convert DT bindings for lsi,zevio, mpc8xxx, and atmel to DT schema
 - document new properties for aspeed,gpio, fsl,qoriq-gpio and gpio-vf610
 - document new compatibles for pca953x and fsl,qoriq-gpio
 
 Documentation:
 - document stricter behavior of the GPIO character device uAPI with regards to
   reconfiguring requested line without direction set
 - clarify the effect of the active-low flag on line values and edges
 - remove documentation for the legacy GPIO API in order to stop tempting
   people to use it
 - document the preference for using pread() for reading edge events in the
   sysfs API
 
 Other:
 - add an extended initializer to the interrupt simulator allowing to specify
   a number of callbacks callers can use to be notified about irqs being
   requested and released
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Merge tag 'gpio-updates-for-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "The majority of added lines are two new modules: the GPIO virtual
  consumer module that improves our ability to add automated tests for
  the kernel API and the "sloppy" logic analyzer module that uses the
  GPIO API to implement a coarse-grained debugging tool for useful for
  remote development.

  Other than that we have the usual assortment of various driver
  extensions, improvements to the core GPIO code, DT-bindings and other
  documentation updates as well as an extension to the interrupt
  simulator:

  GPIOLIB core:
   - rework kfifo handling rework in the character device code
   - improve the labeling of GPIOs requested as interrupts and show more
     info on interrupt-only GPIOs in debugfs
   - remove unused APIs
   - unexport interfaces that are only used from the core GPIO code
   - drop the return value from gpiochip_set_desc_names() as it cannot
     fail
   - move a string array definition out of a header and into a specific
     compilation unit
   - convert the last user of gpiochip_get_desc() other than GPIO core
     to using a safer alternative
   - use array_index_nospec() where applicable

  New drivers:
   - add a "virtual GPIO consumer" module that allows requesting GPIOs
     from actual hardware and driving tests of the in-kernel GPIO API
     from user-space over debugfs
   - add a GPIO-based "sloppy" logic analyzer module useful for "first
     glance" debugging on remote boards

  Driver improvements:
   - add support for a new model to gpio-pca953x
   - lock GPIOs as interrupts in gpio-sim when the lines are requested
     as irqs via the simulator domain + some other minor improvements
   - improve error reporting in gpio-syscon
   - convert gpio-ath79 to using dynamic GPIO base and range
   - use pcibios_err_to_errno() for converting PCIBIOS error codes to
     errno vaues in gpio-amd8111 and gpio-rdc321x
   - allow building gpio-brcmstb for the BCM2835 architecture

  DT bindings:
   - convert DT bindings for lsi,zevio, mpc8xxx, and atmel to DT schema
   - document new properties for aspeed,gpio, fsl,qoriq-gpio and
     gpio-vf610
   - document new compatibles for pca953x and fsl,qoriq-gpio

  Documentation:
   - document stricter behavior of the GPIO character device uAPI with
     regards to reconfiguring requested line without direction set
   - clarify the effect of the active-low flag on line values and edges
   - remove documentation for the legacy GPIO API in order to stop
     tempting people to use it
   - document the preference for using pread() for reading edge events
     in the sysfs API

  Other:
   - add an extended initializer to the interrupt simulator allowing to
     specify a number of callbacks callers can use to be notified about
     irqs being requested and released"

* tag 'gpio-updates-for-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (41 commits)
  gpio: mc33880: Convert comma to semicolon
  gpio: virtuser: actually use the "trimmed" local variable
  dt-bindings: gpio: convert Atmel GPIO to json-schema
  gpio: virtuser: new virtual testing driver for the GPIO API
  dt-bindings: gpio: vf610: Allow gpio-line-names to be set
  gpio: sim: lock GPIOs as interrupts when they are requested
  genirq/irq_sim: add an extended irq_sim initializer
  dt-bindings: gpio: fsl,qoriq-gpio: Add compatible string fsl,ls1046a-gpio
  gpiolib: unexport gpiochip_get_desc()
  gpio: add sloppy logic analyzer using polling
  Documentation: gpio: Reconfiguration with unset direction (uAPI v2)
  Documentation: gpio: Reconfiguration with unset direction (uAPI v1)
  dt-bindings: gpio: fsl,qoriq-gpio: add common property gpio-line-names
  gpio: ath79: convert to dynamic GPIO base allocation
  pinctrl: da9062: replace gpiochip_get_desc() with gpio_device_get_desc()
  gpiolib: put gpio_suffixes in a single compilation unit
  Documentation: gpio: Clarify effect of active low flag on line edges
  Documentation: gpio: Clarify effect of active low flag on line values
  gpiolib: Remove data-less gpiochip_add() function
  gpio: sim: use devm_mutex_init()
  ...
2024-07-15 17:53:24 -07:00
Linus Torvalds
3f32ab146c MMC host:
- Convert from using tasklet to the BH workqueue
  - dw_mmc-bluefield: Add support for eMMC HW reset
  - mmc_spi: Allow spi controllers incapable of lower than 400kHz
  - sdhci: Rework code to eliminate SDHCI_QUIRK_UNSTABLE_RO_DETECT
  - sdhci-brcmstb: Add support for the BCM2712 variant
  - sdhci-esdhc-imx: Disable card-detect as system wakeup on S32G platforms
  - sdhci-msm: Add support for the SDX75 variant
  - sdhci-of-dwcmshc: Enable CQE support for some Rockchip variants
  - sdhci-of-esdhc: Convert DT-bindings to yaml
  - sdhci-sprd: Convert DT-bindings to yaml
 
 MEMSTICK:
  - rtsx_pci_ms: Remove the unused Realtek PCI memstick driver
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Merge tag 'mmc-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC host:
   - Convert from using tasklet to the BH workqueue
   - dw_mmc-bluefield: Add support for eMMC HW reset
   - mmc_spi: Allow spi controllers incapable of lower than 400kHz
   - sdhci: Rework code to eliminate SDHCI_QUIRK_UNSTABLE_RO_DETECT
   - sdhci-brcmstb: Add support for the BCM2712 variant
   - sdhci-esdhc-imx: Disable card-detect as system wakeup on S32G platforms
   - sdhci-msm: Add support for the SDX75 variant
   - sdhci-of-dwcmshc: Enable CQE support for some Rockchip variants
   - sdhci-of-esdhc: Convert DT-bindings to yaml
   - sdhci-sprd: Convert DT-bindings to yaml

  MEMSTICK:
   - rtsx_pci_ms: Remove the unused Realtek PCI memstick driver"

* tag 'mmc-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (26 commits)
  MAINTAINERS: add 's32@nxp.com' as relevant mailing list for 'sdhci-esdhc-imx' driver
  mmc: sdhci-esdhc-imx: obtain the 'per' clock rate after its enablement
  mmc: sdhci-esdhc-imx: disable card detect wake for S32G based platforms
  dt-bindings: mmc: sdhci-sprd: convert to YAML
  mmc: davinci_mmc: report all possible bus widths
  mmc: dw_mmc-bluefield: Add support for eMMC HW reset
  mmc: dw_mmc: Add support for platform specific eMMC HW reset
  mmc: sdhci_am654: Constify struct regmap_config
  mmc: Convert from tasklet to BH workqueue
  mmc: sdhi: Convert from tasklet to BH workqueue
  mmc: mmc_spi: allow for spi controllers incapable of getting as low as 400k
  memstick: rtsx_pci_ms: Remove Realtek PCI memstick driver
  MAINTAINERS: drop entry for VIA SD/MMC controller
  mmc: tmio: Remove obsolete .set_pwr() callback()
  mfd: tmio: Remove obsolete .set_clk_div() callback
  mmc: sdhci-brcmstb: Add ARCH_BCM2835 option
  mmc: sdhci: Eliminate SDHCI_QUIRK_UNSTABLE_RO_DETECT
  dt-bindings: mmc: Convert fsl-esdhc.txt to yaml
  dt-bindings: mmc: mmc-spi-slot: Change voltage-ranges to uint32-matrix
  mmc: add missing MODULE_DESCRIPTION() macros
  ...
2024-07-15 17:48:12 -07:00
Linus Torvalds
d46ede3188 pmdomain core:
- Add support for HW-managed devices
 
 pmdomain providers:
  - amlogic: Add support for the A5 and the A4 power domains
  - arm: Enable system wakeups for the SCMI PM domain
  - qcom/clk: Add HW-mode callbacks to allow switching of GDSC mode
 
 pmdomain consumers:
  - qcom/media/venus: Enable support for switching GDSC HW-mode on V6
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Merge tag 'pmdomain-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain updates from Ulf Hansson:
 "pmdomain core:
   - Add support for HW-managed devices

  pmdomain providers:
   - amlogic: Add support for the A5 and the A4 power domains
   - arm: Enable system wakeups for the SCMI PM domain
   - qcom/clk: Add HW-mode callbacks to allow switching of GDSC mode

  pmdomain consumers:
   - qcom/media/venus: Enable support for switching GDSC HW-mode on V6"

* tag 'pmdomain-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  pmdomain: amlogic: Constify struct meson_secure_pwrc_domain_desc
  venus: pm_helpers: Use dev_pm_genpd_set_hwmode to switch GDSC mode on V6
  clk: qcom: videocc: Use HW_CTRL_TRIGGER for SM8250, SC7280 vcodec GDSC's
  clk: qcom: gdsc: Add set and get hwmode callbacks to switch GDSC mode
  PM: domains: Add the domain HW-managed mode to the summary
  PM: domains: Allow devices attached to genpd to be managed by HW
  pmdomain: amlogic: Add support for A5 power domains controller
  dt-bindings: power: add Amlogic A5 power domains
  pmdomain: amlogic: add missing MODULE_DESCRIPTION() macros
  pmdomain: arm: scmi_pm_domain: set flag GENPD_FLAG_ACTIVE_WAKEUP
  pmdomain: renesas: rmobile-sysc: Use for_each_child_of_node_scoped()
  pmdomain: core: Use genpd_is_irq_safe() helper
  pmdomain: amlogic: Add support for A4 power domains controller
  dt-bindings: power: add Amlogic A4 power domains
2024-07-15 17:44:59 -07:00
Linus Torvalds
c6e63a9882 pwm: Changes for v6.11-rc1
This contains the usual mix of fixes, cleanups, two new drivers and
 several dt binding updates. The fixes are for minor issues that are
 already old (4.11-rc1 and 3.9-rc1) and were found by code review and not
 during usage, so I didn't sent them for earlier inclusion.
 
 The changes to include/linux/mfd/stm32-timers.h and
 drivers/counter/stm32-timer-cnt.c are part of an immutable branch that
 will also be included in the mfd and counter PR. It changes some
 register definitions and affects the pwm-stm32 driver.
 
 Thanks go to Andy Shevchenko, AngeloGioacchino Del Regno, Conor Dooley,
 David Lechner, Dhruva Gole, Drew Fustini, Frank Li, Jeff Johnson, Junyi
 Zhao, Kelvin Zhang, Krzysztof Kozlowski, Lee Jones, Linus Walleij, Linus
 Walleij, Michael Hennerich, Nicola Di Lieto, Nicolas Ferre, Nuno Sa,
 Paul Cercueil, Raag Jadav, Rob Herring, Sean Anderson, Sean Young,
 Shenwei Wang, Stefan Wahren, Trevor Gamblin, Tzung-Bi Shih, Vincent
 Whitchurch and William Breathitt Gray for their contributions to this
 pull request; they authored changes, spend time reviewing changes and
 coordinated the above mentioned immutable branch.
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Merge tag 'pwm/for-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux

Pull pwm updates from Uwe Kleine-König:
 "This contains the usual mix of fixes, cleanups, two new drivers and
  several dt binding updates. The fixes are for minor issues that are
  already old (4.11-rc1 and 3.9-rc1) and were found by code review and
  not during usage, so I didn't sent them for earlier inclusion.

  The changes to include/linux/mfd/stm32-timers.h and
  drivers/counter/stm32-timer-cnt.c are part of an immutable branch that
  will also be included in the mfd and counter pulls. It changes some
  register definitions and affects the pwm-stm32 driver.

  Thanks go to Andy Shevchenko, AngeloGioacchino Del Regno, Conor
  Dooley, David Lechner, Dhruva Gole, Drew Fustini, Frank Li, Jeff
  Johnson, Junyi Zhao, Kelvin Zhang, Krzysztof Kozlowski, Lee Jones,
  Linus Walleij, Linus Walleij, Michael Hennerich, Nicola Di Lieto,
  Nicolas Ferre, Nuno Sa, Paul Cercueil, Raag Jadav, Rob Herring, Sean
  Anderson, Sean Young, Shenwei Wang, Stefan Wahren, Trevor Gamblin,
  Tzung-Bi Shih, Vincent Whitchurch and William Breathitt Gray for their
  contributions to this pull request; they authored changes, spend time
  reviewing changes and coordinated the above mentioned immutable
  branch"

* tag 'pwm/for-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux: (38 commits)
  pwm: axi-pwmgen: add .max_register to regmap
  dt-bindings: pwm: at91: Add sama7d65 compatible string
  pwm: atmel-tcb: Make private data variable naming consistent
  pwm: atmel-tcb: Simplify checking the companion output
  pwm: Allow pwm state transitions from an invalid state
  pwm: xilinx: Simplify using devm_ functions
  pwm: Use guards for pwm_lookup_lock instead of explicity mutex_lock + mutex_unlock
  pwm: Use guards for export->lock instead of explicity mutex_lock + mutex_unlock
  pwm: Use guards for pwm_lock instead of explicity mutex_lock + mutex_unlock
  pwm: Register debugfs operations after the pwm class
  pwm: imx-tpm: Enable pinctrl setting for sleep state
  pwm: lpss: drop redundant runtime PM handles
  pwm: lpss: use devm_pm_runtime_enable() helper
  pwm-stm32: Make use of parametrised register definitions
  dt-bindings: pwm: imx: remove interrupt property from required
  pwm: meson: Add support for Amlogic S4 PWM
  pwm: Add GPIO PWM driver
  dt-bindings: pwm: Add pwm-gpio
  pwm: Drop pwm_apply_state()
  bus: ts-nbus: Use pwm_apply_might_sleep()
  ...
2024-07-15 17:42:28 -07:00
Linus Torvalds
500a711df6 hwmon updates for v6.11-rc1
* Obsolete driver removals
 
   - Removed obsolete adm1021 and max6642 drivers
 
 * New drivers
 
   - MPS MP2891
 
   - MPS MP2993
 
   - MPS MP9941
 
   - MPS MP5920
 
   - SPD5118 (Temperature Sensor and EEPROM)
 
 * Added device support to existing drivers
 
   - g762: G761
 
   - dell-smm: Dell OptiPlex 7060
 
   - asus-ec-sensors: ProArt X670E-CREATOR WIFI
 
   - corsair-psu: HX1200i Series 2023 psu
 
   - nzxt-smart2: Additional USB IS for NZXT RGB & Fan Controller
 
 * Notable enhancements and fixes
 
   - Removed use of i2c_match_id()
 
   - Constified struct regmap_config where feasible
 
   - Cleaned up amc6821 driver, and converted to use regmap and with_info API
 
   - Converted max6639 driver to use with_info API; added support for
     additional sysfs attributes
 
   - Fixed various sysfs attribute underflows
 
   - Added PEC support to hwmon core, and use in lm90 and max31827 drivers
 
 * Various other minor fixes and improvements
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Merge tag 'hwmon-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "Obsolete driver removals:

   - Removed obsolete adm1021 and max6642 drivers

  New drivers:

   - MPS MP2891, MP2993, MP9941, and MP5920

   - SPD5118 (Temperature Sensor and EEPROM)

  Added device support to existing drivers:

   - g762: G761

   - dell-smm: Dell OptiPlex 7060

   - asus-ec-sensors: ProArt X670E-CREATOR WIFI

   - corsair-psu: HX1200i Series 2023 psu

   - nzxt-smart2: Additional USB IS for NZXT RGB & Fan Controller

  Notable enhancements and fixes:

   - Removed use of i2c_match_id()

   - Constified struct regmap_config where feasible

   - Cleaned up amc6821 driver, and converted to use regmap and
     with_info API

   - Converted max6639 driver to use with_info API; added support for
     additional sysfs attributes

   - Fixed various sysfs attribute underflows

   - Added PEC support to hwmon core, and use in lm90 and max31827
     drivers

  And various other minor fixes and improvements"

* tag 'hwmon-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (103 commits)
  hwmon: (max6697) Fix swapped temp{1,8} critical alarms
  hwmon: (max6697) Fix underflow when writing limit attributes
  hwmon: Remove obsolete adm1021 and max6642 drivers
  hwmon: (pmbus/ltc4286) Drop unused i2c device ids
  hwmon: (g762) Initialize fans after configuring clock
  hwmon: (amc6821) Add support for pwm1_mode attribute
  hwmon: (amc6821) Convert to with_info API
  hwmon: (amc6821) Convert to use regmap
  hwmon: (amc6821) Drop unnecessary enum chips
  hwmon: (amc6821) Use BIT() and GENMASK()
  hwmon: (amc6821) Use tabs for column alignment in defines
  hwmon: (amc6821) Reorder include files, drop unnecessary ones
  hwmon: (amc6821) Add support for fan1_target and pwm1_enable mode 4
  hwmon: (amc6821) Rename fan1_div to fan1_pulses
  hwmon: (amc6821) Make reading and writing fan speed limits consistent
  hwmon: (amc6821) Stop accepting invalid pwm values
  hwmon: (w83627ehf) Fix underflows seen when writing limit attributes
  hwmon: (nct6775-core) Fix underflows seen when writing limit attributes
  hwmon: (lm95234) Fix underflows seen when writing limit attributes
  hwmon: (adc128d818) Fix underflows seen when writing limit attributes
  ...
2024-07-15 17:39:13 -07:00
Linus Torvalds
e763c9ec71 pwrseq updates for v6.11-rc1
- add the pwrseq core framework
 - add the first power sequencing driver: pwrseq-qcom-wcn
 - add power control (pwrctl) changes to PCI core
 - add the first PCI pwrctl power sequencing driver
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Merge tag 'pwrseq-updates-for-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull power sequencing updates from Bartosz Golaszewski:
 "This has been in development since last year's Linux Plumbers
  Conference and was inspired by the need to enable support upstream for
  Bluetooth/WLAN chips on Qualcomm platforms.

  The main problem we're fixing is powering up devices which are
  represented as separate objects in the kernel (binding to different
  drivers) but which share parts of the power-up sequence and thus need
  some kind of a mediator who knows the possible interactions and can
  assure they don't interfere with neither device's bring up. An example
  of such an inter-driver interaction is the WCN family of BT/WLAN chips
  from Qualcomm of which some models require the user to observe a
  certain delay between driving the bt-enable and wlan-enable GPIOs.

  This is not a new problem but up to this point all attempts at
  addressing it ended up hitting one wall or another and being dropped.
  The main obstacle was the fact that most these attempts tried to
  introduce the concept of a "power sequence" into the device-tree
  bindings which breaks the main DT rule: describe the hardware, not its
  behavior. The solution I proposed focuses on making the power
  sequencer drivers interpret the actual HW description flexibly. More
  details on that are in the linked cover letter.

  The second problem fixed here is powering up PCI devices before they
  are detected on the bus. This is achieved by creating special platform
  devices for device-tree nodes describing hard-wired PCI devices which
  bind to the so-called PCI power control drivers which enable required
  resources and trigger a bus rescan once the controlled device is up
  then setup the correct devlink hierarchy for power-management.

  By combining the two new frameworks we implemented the power
  sequencing PCI power control driver which is capable of powering up
  the WLAN modules of the QCom WCN family of chipsets.

  All this has spent a significant amount of time in linux-next and
  enabled WLAN/BT support on several Qualcomm platforms. To further
  prove that this is useful and needed: right after this was picked up
  into next, I was sent a series using the subsystem for a similar
  use-case on Amlogic platforms.

  This contains the core power sequencing framework, the first driver,
  PCI changes using the pwrseq library (blessed by Bjorn Helgaas) and
  some fixes that came later"

* tag 'pwrseq-updates-for-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  PCI/pwrctl: only call of_platform_populate() if CONFIG_OF is enabled
  power: sequencing: simplify returning pointer without cleanup
  PCI/pwrctl: Add a PCI power control driver for power sequenced devices
  PCI/pwrctl: Add PCI power control core code
  PCI/pwrctl: Create platform devices for child OF nodes of the port node
  PCI/pwrctl: Reuse the OF node for power controlled devices
  PCI: Hold the rescan mutex when scanning for the first time
  power: pwrseq: add a driver for the PMU module on the QCom WCN chipsets
  power: sequencing: implement the pwrseq core
2024-07-15 17:34:31 -07:00
Linus Torvalds
cdf471c348 chrome platform firmware changes for 6.11
* Minor cleanups.
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Merge tag 'tag-chrome-platform-firmware-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform firmware update from Tzung-Bi Shih:

 - Minor cleanup: add missing MODULE_DESCRIPTION

* tag 'tag-chrome-platform-firmware-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  firmware: google: add missing MODULE_DESCRIPTION() macros
2024-07-15 17:28:40 -07:00
Linus Torvalds
89c4913893 chrome platform changes for 6.11
* New
 
   - Add "cros_ec_hwmon" driver to expose fan speed and temperature.
 
   - Add "cros_charge-control" driver to control charge thresholds and
     behaviour.
 
   - Add module parameter "log_poll_period_ms" in cros_ec_debugfs for
     tuning the poll period.
 
   - Support version 3 of EC_CMD_GET_NEXT_EVENT and keyboard matrix.
 
 * Fixes
 
   - Fix a race condition in accessing MEC (Microchip EC) memory between
     ACPI and kernel.  Serialize the memory access by an AML (ACPI
     Machine Language) mutex.
 
   - Fix an issue of wrong EC message version in cros_ec_debugfs.
 
 * Misc
 
   - Fix kernel-doc errors and cleanups.
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Merge tag 'tag-chrome-platform-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Tzung-Bi Shih:
 "New code:

   - Add "cros_ec_hwmon" driver to expose fan speed and temperature

   - Add "cros_charge-control" driver to control charge thresholds and
     behaviour

   - Add module parameter "log_poll_period_ms" in cros_ec_debugfs for
     tuning the poll period

   - Support version 3 of EC_CMD_GET_NEXT_EVENT and keyboard matrix

  Fixes:

   - Fix a race condition in accessing MEC (Microchip EC) memory between
     ACPI and kernel. Serialize the memory access by an AML (ACPI
     Machine Language) mutex

   - Fix an issue of wrong EC message version in cros_ec_debugfs

  Misc:

   - Fix kernel-doc errors and cleanups"

* tag 'tag-chrome-platform-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: (28 commits)
  power: supply: cros_charge-control: Fix signedness bug in charge_behaviour_store()
  power: supply: cros_charge-control: Avoid accessing attributes out of bounds
  power: supply: cros_charge-control: don't load if Framework control is present
  power: supply: add ChromeOS EC based charge control driver
  platform/chrome: cros_ec_proto: Introduce cros_ec_get_cmd_versions()
  platform/chrome: Update binary interface for EC-based charge control
  ACPI: battery: add devm_battery_hook_register()
  dt-bindings: input: cros-ec-keyboard: Add keyboard matrix v3.0
  platform/chrome: cros_ec_lpc: Handle zero length read/write
  platform/chrome: cros_ec_lpc: Fix error code in cros_ec_lpc_mec_read_bytes()
  platform/chrome: cros_ec_debugfs: fix wrong EC message version
  platform/chrome: cros_ec_proto: update Kunit test for get_next_data_v3
  platform/chrome: cros_ec_proto: add missing MODULE_DESCRIPTION() macro
  hwmon: (cros_ec) Fix access to restricted __le16
  hwmon: (cros_ec) Prevent read overflow in probe()
  platform/chrome: cros_ec_lpc: Add quirks for Framework Laptop
  platform/chrome: cros_ec_lpc: Add a new quirk for AML mutex
  platform/chrome: cros_ec_lpc: Add a new quirk for ACPI id
  platform/chrome: cros_ec_lpc: MEC access can use an AML mutex
  platform/chrome: cros_ec_lpc: MEC access can return error code
  ...
2024-07-15 17:25:38 -07:00
Linus Torvalds
d8764c1931 workqueue: Fixes for v6.11-rc1
cpus_read_lock() is dropped from workqueue creation path but there were
 still remaining lockdep_assert_cpus_held() triggering spurious lockdep
 failures. Remove them.
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Merge tag 'wq-for-6.11-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue fix from Tejun Heo:
 "cpus_read_lock() was dropped from workqueue creation path but there
  were still remaining lockdep_assert_cpus_held() triggering spurious
  lockdep failures. Remove them"

* tag 'wq-for-6.11-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: Remove unneeded lockdep_assert_cpus_held()
2024-07-15 17:23:32 -07:00
Linus Torvalds
c89d780cc1 arm64 updates for 6.11:
* Virtual CPU hotplug support for arm64 ACPI systems
 
 * cpufeature infrastructure cleanups and making the FEAT_ECBHB ID bits
   visible to guests
 
 * CPU errata: expand the speculative SSBS workaround to more CPUs
 
 * arm64 ACPI:
 
   - acpi=nospcr option to disable SPCR as default console for arm64
 
   - Move some ACPI code (cpuidle, FFH) to drivers/acpi/arm64/
 
 * GICv3, use compile-time PMR values: optimise the way regular IRQs are
   masked/unmasked when GICv3 pseudo-NMIs are used, removing the need for
   a static key in fast paths by using a priority value chosen
   dynamically at boot time
 
 * arm64 perf updates:
 
   - Rework of the IMX PMU driver to enable support for I.MX95
 
   - Enable support for tertiary match groups in the CMN PMU driver
 
   - Initial refactoring of the CPU PMU code to prepare for the fixed
     instruction counter introduced by Arm v9.4
 
   - Add missing PMU driver MODULE_DESCRIPTION() strings
 
   - Hook up DT compatibles for recent CPU PMUs
 
 * arm64 kselftest updates:
 
   - Kernel mode NEON fp-stress
 
   - Cleanups, spelling mistakes
 
 * arm64 Documentation update with a minor clarification on TBI
 
 * Miscellaneous:
 
   - Fix missing IPI statistics
 
   - Implement raw_smp_processor_id() using thread_info rather than a
     per-CPU variable (better code generation)
 
   - Make MTE checking of in-kernel asynchronous tag faults conditional
     on KASAN being enabled
 
   - Minor cleanups, typos
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Catalin Marinas:
 "The biggest part is the virtual CPU hotplug that touches ACPI,
  irqchip. We also have some GICv3 optimisation for pseudo-NMIs that has
  been queued via the arm64 tree. Otherwise the usual perf updates,
  kselftest, various small cleanups.

  Core:

   - Virtual CPU hotplug support for arm64 ACPI systems

   - cpufeature infrastructure cleanups and making the FEAT_ECBHB ID
     bits visible to guests

   - CPU errata: expand the speculative SSBS workaround to more CPUs

   - GICv3, use compile-time PMR values: optimise the way regular IRQs
     are masked/unmasked when GICv3 pseudo-NMIs are used, removing the
     need for a static key in fast paths by using a priority value
     chosen dynamically at boot time

  ACPI:

   - 'acpi=nospcr' option to disable SPCR as default console for arm64

   - Move some ACPI code (cpuidle, FFH) to drivers/acpi/arm64/

  Perf updates:

   - Rework of the IMX PMU driver to enable support for I.MX95

   - Enable support for tertiary match groups in the CMN PMU driver

   - Initial refactoring of the CPU PMU code to prepare for the fixed
     instruction counter introduced by Arm v9.4

   - Add missing PMU driver MODULE_DESCRIPTION() strings

   - Hook up DT compatibles for recent CPU PMUs

  Kselftest updates:

   - Kernel mode NEON fp-stress

   - Cleanups, spelling mistakes

  Miscellaneous:

   - arm64 Documentation update with a minor clarification on TBI

   - Fix missing IPI statistics

   - Implement raw_smp_processor_id() using thread_info rather than a
     per-CPU variable (better code generation)

   - Make MTE checking of in-kernel asynchronous tag faults conditional
     on KASAN being enabled

   - Minor cleanups, typos"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (69 commits)
  selftests: arm64: tags: remove the result script
  selftests: arm64: tags_test: conform test to TAP output
  perf: add missing MODULE_DESCRIPTION() macros
  arm64: smp: Fix missing IPI statistics
  irqchip/gic-v3: Fix 'broken_rdists' unused warning when !SMP and !ACPI
  ACPI: Add acpi=nospcr to disable ACPI SPCR as default console on ARM64
  Documentation: arm64: Update memory.rst for TBI
  arm64/cpufeature: Replace custom macros with fields from ID_AA64PFR0_EL1
  KVM: arm64: Replace custom macros with fields from ID_AA64PFR0_EL1
  perf: arm_pmuv3: Include asm/arm_pmuv3.h from linux/perf/arm_pmuv3.h
  perf: arm_v6/7_pmu: Drop non-DT probe support
  perf/arm: Move 32-bit PMU drivers to drivers/perf/
  perf: arm_pmuv3: Drop unnecessary IS_ENABLED(CONFIG_ARM64) check
  perf: arm_pmuv3: Avoid assigning fixed cycle counter with threshold
  arm64: Kconfig: Fix dependencies to enable ACPI_HOTPLUG_CPU
  perf: imx_perf: add support for i.MX95 platform
  perf: imx_perf: fix counter start and config sequence
  perf: imx_perf: refactor driver for imx93
  perf: imx_perf: let the driver manage the counter usage rather the user
  perf: imx_perf: add macro definitions for parsing config attr
  ...
2024-07-15 17:06:19 -07:00
Lai Jiangshan
aa8684755a workqueue: Remove unneeded lockdep_assert_cpus_held()
The commit 19af457573 ("workqueue: Remove cpus_read_lock() from
apply_wqattrs_lock()") removes the unneed cpus_read_lock() after the pwq
creations and installations have been reworked based on wq_online_cpumask
rather than cpu_online_mask making cpus_read_lock() is unneeded during
wqattrs changes.

But it desn't remove the lockdep_assert_cpus_held() checks during wqattrs
changes, which leads to complaints from lockdep reported by kernel test
robot:

[   15.726567][  T131] ------------[ cut here ]------------
[ 15.728117][ T131] WARNING: CPU: 1 PID: 131 at kernel/cpu.c:525 lockdep_assert_cpus_held (kernel/cpu.c:525)
[   15.731191][  T131] Modules linked in: floppy(+) parport_pc(+) parport qemu_fw_cfg rtc_cmos
[   15.733423][  T131] CPU: 1 PID: 131 Comm: systemd-udevd Tainted: G                T  6.10.0-rc2-00254-g19af45757383 #1 df6f039f42e8818bf9a534449362ebad1aad32e2
[   15.737011][  T131] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 15.739760][ T131] EIP: lockdep_assert_cpus_held (kernel/cpu.c:525)
[ 15.741326][ T131] Code: 97 c2 03 72 20 83 3d f4 73 97 c2 00 74 17 55 89 e5 b8 fc bd 4d c2 ba ff ff ff ff e8 e4 57 d1 00 85 c0 74 06 5d 31 c0 31 d2 c3 <0f> 0b eb f6 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 89 e5 b8

Fix it by removing the unneeded lockdep_assert_cpus_held().
Also remove the unneed cpus_read_lock() from wq_affn_dfl_set().

tj: Dropped the removal of cpus_read_lock/unlock() in wq_affn_dfl_set() to
    keep this patch fix only.

Cc: kernel test robot <oliver.sang@intel.com>
Fixes: 19af45757383("workqueue: Remove cpus_read_lock() from apply_wqattrs_lock()")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202407141846.665c0446-lkp@intel.com
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2024-07-15 14:01:14 -10:00
Linus Torvalds
bbb3556c01 Hi,
Contains cosmetic fixes only.
 
 BR, Jarkko
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Merge tag 'keys-next-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull keys updates from Jarkko Sakkinen:
 "Contains cosmetic fixes only"

* tag 'keys-next-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  KEYS: encrypted: add missing MODULE_DESCRIPTION()
  KEYS: trusted: add missing MODULE_DESCRIPTION()
2024-07-15 16:59:58 -07:00
Linus Torvalds
4cb9dc10a6 Hi,
Contains couuple of bug fixes.
 
 BR, Jarkko
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Merge tag 'tpmdd-next-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "A couple of bug fixes.

  No new features are coming for this release. I had one in progress but
  decided to let it mature up until 6.12"

* tag 'tpmdd-next-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm_tis_spi: add missing attpm20p SPI device ID entry
  char: tpm: Fix possible memory leak in tpm_bios_measurements_open()
2024-07-15 16:57:27 -07:00
Linus Torvalds
b02c520fee workqueue: Changes for v6.11
- Lai fixed a bug where CPU hotplug and workqueue attribute changes race
   leaving some workqueues not fully updated. This involved refactoring and
   changing how online CPUs are tracked. The resulting code is cleaner.
 
 - Workqueue watchdog touch operation was causing too much cacheline
   contention on very large machines. Nicholas improved scalabililty by
   avoiding unnecessary global updates.
 
 - Code cleanups and minor rescuer behavior improvement.
 
 - The last commit 58629d4871 ("workqueue: Always queue work items to the
   newest PWQ for order workqueues") is a cherry-picked straggler commit from
   for-6.10-fixes, a fix for a bug which may not actually trigger.
   Unfortunately, maybe because for-6.10-fixes was branched off at a
   different point from for-6.11, I couldn't persuade git request-pull to
   generate clean diffstat if pulled into for-6.11.
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Merge tag 'wq-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:

 - Lai fixed a bug where CPU hotplug and workqueue attribute changes
   race leaving some workqueues not fully updated. This involved
   refactoring and changing how online CPUs are tracked. The resulting
   code is cleaner.

 - Workqueue watchdog touch operation was causing too much cacheline
   contention on very large machines. Nicholas improved scalabililty by
   avoiding unnecessary global updates.

 - Code cleanups and minor rescuer behavior improvement.

 - The last commit 58629d4871 ("workqueue: Always queue work items to
   the newest PWQ for order workqueues") is a cherry-picked straggler
   commit from for-6.10-fixes, a fix for a bug which may not actually
   trigger.

* tag 'wq-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (24 commits)
  workqueue: Always queue work items to the newest PWQ for order workqueues
  workqueue: Rename wq_update_pod() to unbound_wq_update_pwq()
  workqueue: Remove the arguments @hotplug_cpu and @online from wq_update_pod()
  workqueue: Remove the argument @cpu_going_down from wq_calc_pod_cpumask()
  workqueue: Remove the unneeded cpumask empty check in wq_calc_pod_cpumask()
  workqueue: Remove cpus_read_lock() from apply_wqattrs_lock()
  workqueue: Simplify wq_calc_pod_cpumask() with wq_online_cpumask
  workqueue: Add wq_online_cpumask
  workqueue: Init rescuer's affinities as the wq's effective cpumask
  workqueue: Put PWQ allocation and WQ enlistment in the same lock C.S.
  workqueue: Move kthread_flush_worker() out of alloc_and_link_pwqs()
  workqueue: Make rescuer initialization as the last step of the creation of a new wq
  workqueue: Register sysfs after the whole creation of the new wq
  workqueue: Simplify goto statement
  workqueue: Update cpumasks after only applying it successfully
  workqueue: Improve scalability of workqueue watchdog touch
  workqueue: wq_watchdog_touch is always called with valid CPU
  workqueue: Remove useless pool->dying_workers
  workqueue: Detach workers directly in idle_cull_fn()
  workqueue: Don't bind the rescuer in the last working cpu
  ...
2024-07-15 16:51:22 -07:00
Linus Torvalds
895b9b1207 cgroup: Changes for v6.11
- Added Michal Koutný as a maintainer.
 
 - Counters in pids.events were behaving inconsistently. pids.events made
   properly hierarchical and pids.events.local added.
 
 - misc.peak and misc.events.local added.
 
 - cpuset remote partition creation and cpuset.cpus.exclusive handling
   improved.
 
 - Code cleanups, non-critical fixes, doc updates.
 
 - for-6.10-fixes is merged in to receive two non-critical fixes that didn't
   trigger pull.
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Merge tag 'cgroup-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup updates from Tejun Heo:

 - Added Michal Koutný as a maintainer

 - Counters in pids.events were behaving inconsistently. pids.events
   made properly hierarchical and pids.events.local added

 - misc.peak and misc.events.local added

 - cpuset remote partition creation and cpuset.cpus.exclusive handling
   improved

 - Code cleanups, non-critical fixes, doc updates

 - for-6.10-fixes is merged in to receive two non-critical fixes that
   didn't trigger pull

* tag 'cgroup-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (23 commits)
  cgroup: Add Michal Koutný as a maintainer
  cgroup/misc: Introduce misc.events.local
  cgroup/rstat: add force idle show helper
  cgroup: Protect css->cgroup write under css_set_lock
  cgroup/misc: Introduce misc.peak
  cgroup_misc: add kernel-doc comments for enum misc_res_type
  cgroup/cpuset: Prevent UAF in proc_cpuset_show()
  selftest/cgroup: Update test_cpuset_prs.sh to match changes
  cgroup/cpuset: Make cpuset.cpus.exclusive independent of cpuset.cpus
  cgroup/cpuset: Delay setting of CS_CPU_EXCLUSIVE until valid partition
  selftest/cgroup: Fix test_cpuset_prs.sh problems reported by test robot
  cgroup/cpuset: Fix remote root partition creation problem
  cgroup: avoid the unnecessary list_add(dying_tasks) in cgroup_exit()
  cgroup/cpuset: Optimize isolated partition only generate_sched_domains() calls
  cgroup/cpuset: Reduce the lock protecting CS_SCHED_LOAD_BALANCE
  kernel/cgroup: cleanup cgroup_base_files when fail to add cgroup_psi_files
  selftests: cgroup: Add basic tests for pids controller
  selftests: cgroup: Lexicographic order in Makefile
  cgroup/pids: Add pids.events.local
  cgroup/pids: Make event counters hierarchical
  ...
2024-07-15 16:41:32 -07:00
Linus Torvalds
f97b956b63 nolibc updates for v6.11
o	Fix selftest printf format mismatch in expect_str_buf_eq().
 
 o	Stop using brk() and sbrk() when testing against musl, which
 	implements these two functions with ENOMEM.
 
 o	Make tests use -Werror to force failure on compiler warnings.
 
 o	Add limits for the {u,}intmax_t, ulong and {u,}llong types.
 
 o	Implement strtol() and friends.
 
 o	Add facility to skip nolibc-specific tests when running against
 	non-nolibc libraries.
 
 o	Implement strerror().
 
 o	Also use strerror() on nolibc when running kselftests.
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Merge tag 'nolibc.2024.07.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull nolibc updates from Paul McKenney:

 - Fix selftest printf format mismatch in expect_str_buf_eq()

 - Stop using brk() and sbrk() when testing against musl, which
   implements these two functions with ENOMEM

 - Make tests use -Werror to force failure on compiler warnings

 - Add limits for the {u,}intmax_t, ulong and {u,}llong types

 - Implement strtol() and friends

 - Add facility to skip nolibc-specific tests when running against
   non-nolibc libraries

 - Implement strerror()

 - Also use strerror() on nolibc when running kselftests

* tag 'nolibc.2024.07.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  selftests: kselftest: also use strerror() on nolibc
  tools/nolibc: implement strerror()
  selftests/nolibc: introduce condition to run tests only on nolibc
  tools/nolibc: implement strtol() and friends
  tools/nolibc: add limits for {u,}intmax_t, ulong and {u,}llong
  selftests/nolibc: run-tests.sh: use -Werror by default
  selftests/nolibc: disable brk()/sbrk() tests on musl
  selftests/nolibc: fix printf format mismatch in expect_str_buf_eq()
2024-07-15 16:38:28 -07:00
Linus Torvalds
e4b2b0b1e4 kcsan: Add __data_racy documentation and module description
This series contains on commit that improves the documentation for the
 new __data_racy type qualifier to the data_race() macro's kernel-doc
 header and to the LKMM's access-marking documentation.
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Merge tag 'kcsan.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull KCSAN updates from Paul McKenney:

 - improve the documentation for the new __data_racy type qualifier
   to the data_race() macro's kernel-doc header and to the LKMM's
   access-marking documentation

 - add missing MODULE_DESCRIPTION

* tag 'kcsan.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  kcsan: Add missing MODULE_DESCRIPTION() macro
  kcsan: Add example to data_race() kerneldoc header
2024-07-15 15:44:40 -07:00
Linus Torvalds
b176e21d81 Torture-test updates for v6.11
This pull request adds MODULE_DESCRIPTION() to torture.c, locktorture.c,
 and scftorture.c, and also adds static to a global variable that is used
 only in scftorture.c.
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Merge tag 'torture.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull torture-test updates from Paul McKenney:
 "This adds MODULE_DESCRIPTION() to torture.c, locktorture.c, and
  scftorture.c, and also adds 'static' to a global variable that is used
  only in scftorture.c"

* tag 'torture.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  scftorture: Make torture_type static
  scftorture: Add MODULE_DESCRIPTION()
  locktorture: Add MODULE_DESCRIPTION()
  torture: Add MODULE_DESCRIPTION()
2024-07-15 15:39:25 -07:00
Linus Torvalds
9855e87328 RCU pull request for v6.11
doc.2024.06.06a: Update Tasks RCU and Tasks Rude RCU description in
 	Requirements.rst and clarify rcu_assign_pointer() and
 	rcu_dereference() ordering properties.
 
 fixes.2024.07.04a: Add lockdep assertions for RCU readers, limit inline
 	wakeups for callback-bypass synchronize_rcu(), add an
 	rcutree.nohz_full_patience_delay to reduce nohz_full OS jitter,
 	add Uladzislau Rezki as RCU maintainer, and fix a subtle
 	callback-migration memory-ordering issue.
 
 mb.2024.06.28a: Remove a number of redundant memory barriers.
 
 nocb.2024.06.03a: Remove unnecessary bypass-list lock-contention
 	mitigation, use parking API instead of open-coded ad-hoc
 	equivalent, and upgrade obsolete comments.
 
 rcu-tasks.2024.06.06a: Revert avoidance of a deadlock that can no
 	longer occur and properly synchronize Tasks Trace RCU checking
 	of runqueues.
 
 rcutorture.2024.06.06a: Add tests for handling of double-call_rcu()
 	bug, add missing MODULE_DESCRIPTION, and add a script that
 	histograms the number of calls to RCU updaters.
 
 srcu.2024.06.18a: Fill out SRCU polled-grace-period API.
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Merge tag 'rcu.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull RCU updates from Paul McKenney:

 - Update Tasks RCU and Tasks Rude RCU description in Requirements.rst
   and clarify rcu_assign_pointer() and rcu_dereference() ordering
   properties

 - Add lockdep assertions for RCU readers, limit inline wakeups for
   callback-bypass synchronize_rcu(), add an
   rcutree.nohz_full_patience_delay to reduce nohz_full OS jitter, add
   Uladzislau Rezki as RCU maintainer, and fix a subtle
   callback-migration memory-ordering issue

 - Remove a number of redundant memory barriers

 - Remove unnecessary bypass-list lock-contention mitigation, use
   parking API instead of open-coded ad-hoc equivalent, and upgrade
   obsolete comments

 - Revert avoidance of a deadlock that can no longer occur and properly
   synchronize Tasks Trace RCU checking of runqueues

 - Add tests for handling of double-call_rcu() bug, add missing
   MODULE_DESCRIPTION, and add a script that histograms the number of
   calls to RCU updaters

 - Fill out SRCU polled-grace-period API

* tag 'rcu.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (29 commits)
  rcu: Fix rcu_barrier() VS post CPUHP_TEARDOWN_CPU invocation
  rcu: Eliminate lockless accesses to rcu_sync->gp_count
  MAINTAINERS: Add Uladzislau Rezki as RCU maintainer
  rcu: Add rcutree.nohz_full_patience_delay to reduce nohz_full OS jitter
  rcu/exp: Remove redundant full memory barrier at the end of GP
  rcu: Remove full memory barrier on RCU stall printout
  rcu: Remove full memory barrier on boot time eqs sanity check
  rcu/exp: Remove superfluous full memory barrier upon first EQS snapshot
  rcu: Remove superfluous full memory barrier upon first EQS snapshot
  rcu: Remove full ordering on second EQS snapshot
  srcu: Fill out polled grace-period APIs
  srcu: Update cleanup_srcu_struct() comment
  srcu: Add NUM_ACTIVE_SRCU_POLL_OLDSTATE
  srcu: Disable interrupts directly in srcu_gp_end()
  rcu: Disable interrupts directly in rcu_gp_init()
  rcu/tree: Reduce wake up for synchronize_rcu() common case
  rcu/tasks: Fix stale task snaphot for Tasks Trace
  tools/rcu: Add rcu-updaters.sh script
  rcutorture: Add missing MODULE_DESCRIPTION() macros
  rcutorture: Fix rcu_torture_fwd_cb_cr() data race
  ...
2024-07-15 15:25:27 -07:00
Linus Torvalds
253e1e9818 lkmm: Fix corner-case locking bug and improve documentation
A simple but odd single-process litmus test acquires and immediately
 releases a lock, then calls spin_is_locked().  LKMM acts if it was
 a deadlock due to an assumption that spin_is_locked() will follow a
 spin_lock() or some other process's spin_unlock().  This litmus test
 manages to violate this assumption because the spin_is_locked() follows
 the same process's spin_unlock().
 
 This series fixes this bug, reorganizes and optimizes the lock.cat model,
 and updates documentation.
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Merge tag 'lkmm.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull memory model updates from Paul McKenney:
 "lkmm: Fix corner-case locking bug and improve documentation

  A simple but odd single-process litmus test acquires and immediately
  releases a lock, then calls spin_is_locked(). LKMM acts if it was a
  deadlock due to an assumption that spin_is_locked() will follow a
  spin_lock() or some other process's spin_unlock(). This litmus test
  manages to violate this assumption because the spin_is_locked()
  follows the same process's spin_unlock().

  This series fixes this bug, reorganizes and optimizes the lock.cat
  model, and updates documentation"

* tag 'lkmm.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  tools/memory-model: Code reorganization in lock.cat
  tools/memory-model: Fix bug in lock.cat
  tools/memory-model: Add access-marking.txt to README
  tools/memory-model: Add KCSAN LF mentorship session citation
2024-07-15 15:22:35 -07:00
Linus Torvalds
c4b729b0fa ARM: Provide one-byte cmpxchg emulation
This series provides emulated one-byte cmpxchg() support for ARM
 using the cmpxchg_emu_u8() function that uses a four-byte cmpxchg()
 to emulate the one-byte variant.
 
 Similar patches for emulation of one-byte cmpxchg() for arc, sh, and
 xtensa have not yet received maintainer acks, so they are slated for
 the v6.12 merge window.
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Merge tag 'cmpxchg.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull arm byte cmpxchg from Paul McKenney:
 "ARM: Provide one-byte cmpxchg emulation

  This provides emulated one-byte cmpxchg() support for ARM using the
  cmpxchg_emu_u8() function that uses a four-byte cmpxchg() to emulate
  the one-byte variant.

  Similar patches for emulation of one-byte cmpxchg() for arc, sh, and
  xtensa have not yet received maintainer acks, so they are slated for
  the v6.12 merge window"

* tag 'cmpxchg.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  ARM: Emulate one-byte cmpxchg
2024-07-15 15:19:36 -07:00
Linus Torvalds
4fd9435641 Updates for timers, timekeeping and related functionality:
- Core:
 
     - Make the takeover of a hrtimer based broadcast timer reliable during
       CPU hot-unplug. The current implementation suffers from a race which
       can lead to broadcast timer starvation in the worst case.
 
     - VDSO related cleanups and simplifications
 
     - Small cleanups and enhancements all over the place
 
   - PTP:
 
     - Replace the architecture specific base clock to clocksource, e.g. ART
       to TSC, conversion function with generic functionality to avoid
       exposing such internals to drivers and convert all existing drivers
       over. This also allows to provide functionality which converts the
       other way round in the core code based on the same parameter set.
 
     - Provide a function to convert CLOCK_REALTIME to the base clock to
       support the upcoming PPS output driver on Intel platforms.
 
   - Drivers:
 
     - A set of Device Tree bindings for new hardware
 
     - Cleanups and enhancements all over the place
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Merge tag 'timers-core-2024-07-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Updates for timers, timekeeping and related functionality:

  Core:

   - Make the takeover of a hrtimer based broadcast timer reliable
     during CPU hot-unplug. The current implementation suffers from a
     race which can lead to broadcast timer starvation in the worst
     case.

   - VDSO related cleanups and simplifications

   - Small cleanups and enhancements all over the place

  PTP:

   - Replace the architecture specific base clock to clocksource, e.g.
     ART to TSC, conversion function with generic functionality to avoid
     exposing such internals to drivers and convert all existing drivers
     over. This also allows to provide functionality which converts the
     other way round in the core code based on the same parameter set.

   - Provide a function to convert CLOCK_REALTIME to the base clock to
     support the upcoming PPS output driver on Intel platforms.

  Drivers:

   - A set of Device Tree bindings for new hardware

   - Cleanups and enhancements all over the place"

* tag 'timers-core-2024-07-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
  clocksource/drivers/realtek: Add timer driver for rtl-otto platforms
  dt-bindings: timer: Add schema for realtek,otto-timer
  dt-bindings: timer: Add SOPHGO SG2002 clint
  dt-bindings: timer: renesas,tmu: Add R-Car Gen2 support
  dt-bindings: timer: renesas,tmu: Add RZ/G1 support
  dt-bindings: timer: renesas,tmu: Add R-Mobile APE6 support
  clocksource/drivers/mips-gic-timer: Correct sched_clock width
  clocksource/drivers/mips-gic-timer: Refine rating computation
  clocksource/drivers/sh_cmt: Address race condition for clock events
  clocksource/driver/arm_global_timer: Remove unnecessary ‘0’ values from err
  clocksource/drivers/arm_arch_timer: Remove unnecessary ‘0’ values from irq
  tick/broadcast: Make takeover of broadcast hrtimer reliable
  tick/sched: Combine WARN_ON_ONCE and print_once
  x86/vdso: Remove unused include
  x86/vgtod: Remove unused typedef gtod_long_t
  x86/vdso: Fix function reference in comment
  vdso: Add comment about reason for vdso struct ordering
  vdso/gettimeofday: Clarify comment about open coded function
  timekeeping: Add missing kernel-doc function comments
  tick: Remove unnused tick_nohz_get_idle_calls()
  ...
2024-07-15 15:03:09 -07:00
Linus Torvalds
0eff0491e7 A small set of SMP/CPU hotplug updates:
- Reverse the order of iteration when freezing secondary CPUs for
     hibernation.
 
     This avoids that drivers like the Intel uncore performance counter have
     to transfer the assignement of handling the per package uncore events
     for every CPU in a package, which is a considerable speedup on larger
     systems.
 
   - Add a missing destroy_work_on_stack() invocation in smp_call_on_cpu()
     to prevent debug objects to emit a false positive warning when the
     stack is freed.
 
   - Small cleanups in comments and a str_plural() conversion
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Merge tag 'smp-core-2024-07-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull CPU hotplug updates from Thomas Gleixner:
 "A small set of SMP/CPU hotplug updates:

   - Reverse the order of iteration when freezing secondary CPUs for
     hibernation.

     This avoids that drivers like the Intel uncore performance counter
     have to transfer the assignement of handling the per package uncore
     events for every CPU in a package, which is a considerable speedup
     on larger systems.

   - Add a missing destroy_work_on_stack() invocation in
     smp_call_on_cpu() to prevent debug objects to emit a false positive
     warning when the stack is freed.

   - Small cleanups in comments and a str_plural() conversion"

* tag 'smp-core-2024-07-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  smp: Add missing destroy_work_on_stack() call in smp_call_on_cpu()
  cpu/hotplug: Reverse order of iteration in freeze_secondary_cpus()
  smp: Use str_plural() to fix Coccinelle warnings
  cpu/hotplug: Fix typo in comment
2024-07-15 14:55:30 -07:00
Linus Torvalds
0e4b77d4ea A single update for debugobjects to annotate all intentionally racy global
debug variables so that KCSAN ignores them.
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Merge tag 'core-debugobjects-2024-07-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull debugobjects update from Thomas Gleixner:
 "A single update for debugobjects to annotate all intentionally racy
  global debug variables so that KCSAN ignores them"

* tag 'core-debugobjects-2024-07-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  debugobjects: Annotate racy debug variables
2024-07-15 14:52:21 -07:00
Linus Torvalds
3e78198862 for-6.11/block-20240710
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Merge tag 'for-6.11/block-20240710' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - NVMe updates via Keith:
     - Device initialization memory leak fixes (Keith)
     - More constants defined (Weiwen)
     - Target debugfs support (Hannes)
     - PCIe subsystem reset enhancements (Keith)
     - Queue-depth multipath policy (Redhat and PureStorage)
     - Implement get_unique_id (Christoph)
     - Authentication error fixes (Gaosheng)

 - MD updates via Song
     - sync_action fix and refactoring (Yu Kuai)
     - Various small fixes (Christoph Hellwig, Li Nan, and Ofir Gal, Yu
       Kuai, Benjamin Marzinski, Christophe JAILLET, Yang Li)

 - Fix loop detach/open race (Gulam)

 - Fix lower control limit for blk-throttle (Yu)

 - Add module descriptions to various drivers (Jeff)

 - Add support for atomic writes for block devices, and statx reporting
   for same. Includes SCSI and NVMe (John, Prasad, Alan)

 - Add IO priority information to block trace points (Dongliang)

 - Various zone improvements and tweaks (Damien)

 - mq-deadline tag reservation improvements (Bart)

 - Ignore direct reclaim swap writes in writeback throttling (Baokun)

 - Block integrity improvements and fixes (Anuj)

 - Add basic support for rust based block drivers. Has a dummy null_blk
   variant for now (Andreas)

 - Series converting driver settings to queue limits, and cleanups and
   fixes related to that (Christoph)

 - Cleanup for poking too deeply into the bvec internals, in preparation
   for DMA mapping API changes (Christoph)

 - Various minor tweaks and fixes (Jiapeng, John, Kanchan, Mikulas,
   Ming, Zhu, Damien, Christophe, Chaitanya)

* tag 'for-6.11/block-20240710' of git://git.kernel.dk/linux: (206 commits)
  floppy: add missing MODULE_DESCRIPTION() macro
  loop: add missing MODULE_DESCRIPTION() macro
  ublk_drv: add missing MODULE_DESCRIPTION() macro
  xen/blkback: add missing MODULE_DESCRIPTION() macro
  block/rnbd: Constify struct kobj_type
  block: take offset into account in blk_bvec_map_sg again
  block: fix get_max_segment_size() warning
  loop: Don't bother validating blocksize
  virtio_blk: Don't bother validating blocksize
  null_blk: Don't bother validating blocksize
  block: Validate logical block size in blk_validate_limits()
  virtio_blk: Fix default logical block size fallback
  nvmet-auth: fix nvmet_auth hash error handling
  nvme: implement ->get_unique_id
  block: pass a phys_addr_t to get_max_segment_size
  block: add a bvec_phys helper
  blk-lib: check for kill signal in ioctl BLKZEROOUT
  block: limit the Write Zeroes to manually writing zeroes fallback
  block: refacto blkdev_issue_zeroout
  block: move read-only and supported checks into (__)blkdev_issue_zeroout
  ...
2024-07-15 14:20:22 -07:00
Linus Torvalds
3a56e24173 for-6.11/io_uring-20240714
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Merge tag 'for-6.11/io_uring-20240714' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:
 "Here are the io_uring updates queued up for 6.11.

  Nothing major this time around, various minor improvements and
  cleanups/fixes. This contains:

   - Add bind/listen opcodes. Main motivation is to support direct
     descriptors, to avoid needing a regular fd just for doing these two
     operations (Gabriel)

   - Probe fixes (Gabriel)

   - Treat io-wq work flags as atomics. Not fixing a real issue, but may
     as well and it silences a KCSAN warning (me)

   - Cleanup of rsrc __set_current_state() usage (me)

   - Add 64-bit for {m,f}advise operations (me)

   - Improve performance of data ring messages (me)

   - Fix for ring message overflow posting (Pavel)

   - Fix for freezer interaction with TWA_NOTIFY_SIGNAL. Not strictly an
     io_uring thing, but since TWA_NOTIFY_SIGNAL was originally added
     for faster task_work signaling for io_uring, bundling it with this
     pull (Pavel)

   - Add Pavel as a co-maintainer

   - Various cleanups (me, Thorsten)"

* tag 'for-6.11/io_uring-20240714' of git://git.kernel.dk/linux: (28 commits)
  io_uring/net: check socket is valid in io_bind()/io_listen()
  kernel: rerun task_work while freezing in get_signal()
  io_uring/io-wq: limit retrying worker initialisation
  io_uring/napi: Remove unnecessary s64 cast
  io_uring/net: cleanup io_recv_finish() bundle handling
  io_uring/msg_ring: fix overflow posting
  MAINTAINERS: change Pavel Begunkov from io_uring reviewer to maintainer
  io_uring/msg_ring: use kmem_cache_free() to free request
  io_uring/msg_ring: check for dead submitter task
  io_uring/msg_ring: add an alloc cache for io_kiocb entries
  io_uring/msg_ring: improve handling of target CQE posting
  io_uring: add io_add_aux_cqe() helper
  io_uring: add remote task_work execution helper
  io_uring/msg_ring: tighten requirement for remote posting
  io_uring: Allocate only necessary memory in io_probe
  io_uring: Fix probe of disabled operations
  io_uring: Introduce IORING_OP_LISTEN
  io_uring: Introduce IORING_OP_BIND
  net: Split a __sys_listen helper for io_uring
  net: Split a __sys_bind helper for io_uring
  ...
2024-07-15 13:49:10 -07:00
Linus Torvalds
4f5e249ec0 vfs-6.11.iomap
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Merge tag 'vfs-6.11.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull iomap updates from Christian Brauner:
 "This contains some minor work for the iomap subsystem:

   - Add documentation on the design of iomap and how to port to it

   - Optimize iomap_read_folio()

   - Bring back the change to iomap_write_end() to no increase i_size.

     This is accompanied by a change to xfs to reserve blocks for
     truncating large realtime inodes to avoid exposing stale data when
     iomap_write_end() stops increasing i_size"

* tag 'vfs-6.11.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  iomap: don't increase i_size in iomap_write_end()
  xfs: reserve blocks for truncating large realtime inode
  Documentation: the design of iomap and how to port
  iomap: Optimize iomap_read_folio
2024-07-15 13:28:14 -07:00
Linus Torvalds
98f3a9a4fd vfs-6.11.pidfs
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Merge tag 'vfs-6.11.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull pidfs updates from Christian Brauner:
 "This contains work to make it possible to derive namespace file
  descriptors from pidfd file descriptors.

  Right now it is already possible to use a pidfd with setns() to
  atomically change multiple namespaces at the same time. In other
  words, it is possible to switch to the namespace context of a process
  using a pidfd. There is no need to first open namespace file
  descriptors via procfs.

  The work included here is an extension of these abilities by allowing
  to open namespace file descriptors using a pidfd. This means it is now
  possible to interact with namespaces without ever touching procfs.

  To this end a new set of ioctls() on pidfds is introduced covering all
  supported namespace types"

* tag 'vfs-6.11.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  pidfs: allow retrieval of namespace file descriptors
  nsfs: add open_namespace()
  nsproxy: add helper to go from arbitrary namespace to ns_common
  nsproxy: add a cleanup helper for nsproxy
  file: add take_fd() cleanup helper
2024-07-15 12:34:01 -07:00
Linus Torvalds
1b074abe88 vfs-6.11.nsfs
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Merge tag 'vfs-6.11.nsfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull namespace-fs updates from Christian Brauner:
 "This adds ioctls allowing to translate PIDs between PID namespaces.

  The motivating use-case comes from LXCFS which is a tiny fuse
  filesystem used to virtualize various aspects of procfs. LXCFS is run
  on the host. The files and directories it creates can be bind-mounted
  by e.g. a container at startup and mounted over the various procfs
  files the container wishes to have virtualized.

  When e.g. a read request for uptime is received, LXCFS will receive
  the pid of the reader. In order to virtualize the corresponding read,
  LXCFS needs to know the pid of the init process of the reader's pid
  namespace.

  In order to do this, LXCFS first needs to fork() two helper processes.
  The first helper process setns() to the readers pid namespace. The
  second helper process is needed to create a process that is a proper
  member of the pid namespace.

  The second helper process then creates a ucred message with ucred.pid
  set to 1 and sends it back to LXCFS. The kernel will translate the
  ucred.pid field to the corresponding pid number in LXCFS's pid
  namespace. This way LXCFS can learn the init pid number of the
  reader's pid namespace and can go on to virtualize.

  Since these two forks() are costly LXCFS maintains an init pid cache
  that caches a given pid for a fixed amount of time. The cache is
  pruned during new read requests. However, even with the cache the hit
  of the two forks() is singificant when a very large number of
  containers are running.

  So this adds a simple set of ioctls that let's a caller translate PIDs
  from and into a given PID namespace. This significantly improves
  performance with a very simple change.

  To protect against races pidfds can be used to check whether the
  process is still valid"

* tag 'vfs-6.11.nsfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  nsfs: add pid translation ioctls
2024-07-15 12:27:39 -07:00
Linus Torvalds
f608cabaed vfs-6.11.mount
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Merge tag 'vfs-6.11.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs mount query updates from Christian Brauner:
 "This contains work to extend the abilities of listmount() and
  statmount() and various fixes and cleanups.

  Features:

   - Allow iterating through mounts via listmount() from newest to
     oldest. This makes it possible for mount(8) to keep iterating the
     mount table in reverse order so it gets newest mounts first.

   - Relax permissions on listmount() and statmount().

     It's not necessary to have capabilities in the initial namespace:
     it is sufficient to have capabilities in the owning namespace of
     the mount namespace we're located in to list unreachable mounts in
     that namespace.

   - Extend both listmount() and statmount() to list and stat mounts in
     foreign mount namespaces.

     Currently the only way to iterate over mount entries in mount
     namespaces that aren't in the caller's mount namespace is by
     crawling through /proc in order to find /proc/<pid>/mountinfo for
     the relevant mount namespace.

     This is both very clumsy and hugely inefficient. So extend struct
     mnt_id_req with a new member that allows to specify the mount
     namespace id of the mount namespace we want to look at.

     Luckily internally we already have most of the infrastructure for
     this so we just need to expose it to userspace. Give userspace a
     way to retrieve the id of a mount namespace via statmount() and
     through a new nsfs ioctl() on mount namespace file descriptor.

     This comes with appropriate selftests.

   - Expose mount options through statmount().

     Currently if userspace wants to get mount options for a mount and
     with statmount(), they still have to open /proc/<pid>/mountinfo to
     parse mount options. Simply the information through statmount()
     directly.

     Afterwards it's possible to only rely on statmount() and
     listmount() to retrieve all and more information than
     /proc/<pid>/mountinfo provides.

     This comes with appropriate selftests.

  Fixes:

   - Avoid copying to userspace under the namespace semaphore in
     listmount.

  Cleanups:

   - Simplify the error handling in listmount by relying on our newly
     added cleanup infrastructure.

   - Refuse invalid mount ids early for both listmount and statmount"

* tag 'vfs-6.11.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fs: reject invalid last mount id early
  fs: refuse mnt id requests with invalid ids early
  fs: find rootfs mount of the mount namespace
  fs: only copy to userspace on success in listmount()
  sefltests: extend the statmount test for mount options
  fs: use guard for namespace_sem in statmount()
  fs: export mount options via statmount()
  fs: rename show_mnt_opts -> show_vfsmnt_opts
  selftests: add a test for the foreign mnt ns extensions
  fs: add an ioctl to get the mnt ns id from nsfs
  fs: Allow statmount() in foreign mount namespace
  fs: Allow listmount() in foreign mount namespace
  fs: export the mount ns id via statmount
  fs: keep an index of current mount namespaces
  fs: relax permissions for statmount()
  listmount: allow listing in reverse order
  fs: relax permissions for listmount()
  fs: simplify error handling
  fs: don't copy to userspace under namespace semaphore
  path: add cleanup helper
2024-07-15 11:54:04 -07:00
Linus Torvalds
2aae1d67fd vfs-6.11.inode
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Merge tag 'vfs-6.11.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs inode / dentry updates from Christian Brauner:
 "This contains smaller performance improvements to inodes and dentries:

  inode:

   - Add rcu based inode lookup variants.

     They avoid one inode hash lock acquire in the common case thereby
     significantly reducing contention. We already support RCU-based
     operations but didn't take advantage of them during inode
     insertion.

     Callers of iget_locked() get the improvement without any code
     changes. Callers that need a custom callback can switch to
     iget5_locked_rcu() as e.g., did btrfs.

     With 20 threads each walking a dedicated 1000 dirs * 1000 files
     directory tree to stat(2) on a 32 core + 24GB ram vm:

        before: 3.54s user 892.30s system 1966% cpu 45.549 total
        after:  3.28s user 738.66s system 1955% cpu 37.932 total (-16.7%)

     Long-term we should pick up the effort to introduce more
     fine-grained locking and possibly improve on the currently used
     hash implementation.

   - Start zeroing i_state in inode_init_always() instead of doing it in
     individual filesystems.

     This allows us to remove an unneeded lock acquire in new_inode()
     and not burden individual filesystems with this.

  dcache:

   - Move d_lockref out of the area used by RCU lookup to avoid
     cacheline ping poing because the embedded name is sharing a
     cacheline with d_lockref.

   - Fix dentry size on 32bit with CONFIG_SMP=y so it does actually end
     up with 128 bytes in total"

* tag 'vfs-6.11.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fs: fix dentry size
  vfs: move d_lockref out of the area used by RCU lookup
  bcachefs: remove now spurious i_state initialization
  xfs: remove now spurious i_state initialization in xfs_inode_alloc
  vfs: partially sanitize i_state zeroing on inode creation
  xfs: preserve i_state around inode_init_always in xfs_reinit_inode
  btrfs: use iget5_locked_rcu
  vfs: add rcu-based find_inode variants for iget ops
2024-07-15 11:39:44 -07:00
Linus Torvalds
b8fc1bd73a vfs-6.11.mount.api
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Merge tag 'vfs-6.11.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs mount API updates from Christian Brauner:

 - Add a generic helper to parse uid and gid mount options.

   Currently we open-code the same logic in various filesystems which is
   error prone, especially since the verification of uid and gid mount
   options is a sensitive operation in the face of idmappings.

   Add a generic helper and convert all filesystems over to it. Make
   sure that filesystems that are mountable in unprivileged containers
   verify that the specified uid and gid can be represented in the
   owning namespace of the filesystem.

 - Convert hostfs to the new mount api.

* tag 'vfs-6.11.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fuse: Convert to new uid/gid option parsing helpers
  fuse: verify {g,u}id mount options correctly
  fat: Convert to new uid/gid option parsing helpers
  fat: Convert to new mount api
  fat: move debug into fat_mount_options
  vboxsf: Convert to new uid/gid option parsing helpers
  tracefs: Convert to new uid/gid option parsing helpers
  smb: client: Convert to new uid/gid option parsing helpers
  tmpfs: Convert to new uid/gid option parsing helpers
  ntfs3: Convert to new uid/gid option parsing helpers
  isofs: Convert to new uid/gid option parsing helpers
  hugetlbfs: Convert to new uid/gid option parsing helpers
  ext4: Convert to new uid/gid option parsing helpers
  exfat: Convert to new uid/gid option parsing helpers
  efivarfs: Convert to new uid/gid option parsing helpers
  debugfs: Convert to new uid/gid option parsing helpers
  autofs: Convert to new uid/gid option parsing helpers
  fs_parse: add uid & gid option option parsing helpers
  hostfs: Add const qualifier to host_root in hostfs_fill_super()
  hostfs: convert hostfs to use the new mount API
2024-07-15 11:31:32 -07:00
Linus Torvalds
4a051e4c21 vfs-6.11.casefold
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Merge tag 'vfs-6.11.casefold' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs casefolding updates from Christian Brauner:
 "This contains some work to simplify the handling of casefolded names:

   - Simplify the handling of casefolded names in f2fs and ext4 by
     keeping the names as a qstr to avoiding unnecessary conversions

   - Introduce a new generic_ci_match() libfs case-insensitive lookup
     helper and use it in both f2fs and ext4 allowing to remove the
     filesystem specific implementations

   - Remove a bunch of ifdefs by making the unicode build checks part of
     the code flow"

* tag 'vfs-6.11.casefold' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  f2fs: Move CONFIG_UNICODE defguards into the code flow
  ext4: Move CONFIG_UNICODE defguards into the code flow
  f2fs: Reuse generic_ci_match for ci comparisons
  ext4: Reuse generic_ci_match for ci comparisons
  libfs: Introduce case-insensitive string comparison helper
  f2fs: Simplify the handling of cached casefolded names
  ext4: Simplify the handling of cached casefolded names
2024-07-15 11:18:49 -07:00
Linus Torvalds
7d156879ff vfs-6.11.module.description
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Merge tag 'vfs-6.11.module.description' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs module description updates from Christian Brauner:
 "This contains patches to add module descriptions to all modules under
  fs/ currently lacking them"

* tag 'vfs-6.11.module.description' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  openpromfs: add missing MODULE_DESCRIPTION() macro
  fs: nls: add missing MODULE_DESCRIPTION() macros
  fs: autofs: add MODULE_DESCRIPTION()
  fs: fat: add missing MODULE_DESCRIPTION() macros
  fs: binfmt: add missing MODULE_DESCRIPTION() macros
  fs: cramfs: add MODULE_DESCRIPTION()
  fs: hfs: add MODULE_DESCRIPTION()
  fs: hpfs: add MODULE_DESCRIPTION()
  qnx4: add MODULE_DESCRIPTION()
  qnx6: add MODULE_DESCRIPTION()
  fs: sysv: add MODULE_DESCRIPTION()
  fs: efs: add MODULE_DESCRIPTION()
  fs: minix: add MODULE_DESCRIPTION()
2024-07-15 11:14:59 -07:00
Linus Torvalds
aff31330e0 vfs-6.11.pg_error
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Merge tag 'vfs-6.11.pg_error' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull PG_error removal updates from Christian Brauner:
 "This contains work to remove almost all remaining users of PG_error
  from filesystems and filesystem helper libraries. An additional patch
  will be coming in via the jfs tree which tests the PG_error bit.

  Afterwards nothing will be testing it anymore and it's safe to remove
  all places which set or clear the PG_error bit.

  The goal is to fully remove PG_error by the next merge window"

* tag 'vfs-6.11.pg_error' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  buffer: Remove calls to set and clear the folio error flag
  iomap: Remove calls to set and clear folio error flag
  vboxsf: Convert vboxsf_read_folio() to use a folio
  ufs: Remove call to set the folio error flag
  romfs: Convert romfs_read_folio() to use a folio
  reiserfs: Remove call to folio_set_error()
  orangefs: Remove calls to set/clear the error flag
  nfs: Remove calls to folio_set_error
  jffs2: Remove calls to set/clear the folio error flag
  hostfs: Convert hostfs_read_folio() to use a folio
  isofs: Convert rock_ridge_symlink_read_folio to use a folio
  hpfs: Convert hpfs_symlink_read_folio to use a folio
  efs: Convert efs_symlink_read_folio to use a folio
  cramfs: Convert cramfs_read_folio to use a folio
  coda: Convert coda_symlink_filler() to use folio_end_read()
  befs: Convert befs_symlink_read_folio() to use folio_end_read()
2024-07-15 11:08:14 -07:00
Linus Torvalds
b051320d6a vfs-6.11.misc
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Merge tag 'vfs-6.11.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull misc vfs updates from Christian Brauner:
 "Features:

   - Support passing NULL along AT_EMPTY_PATH for statx().

     NULL paths with any flag value other than AT_EMPTY_PATH go the
     usual route and end up with -EFAULT to retain compatibility (Rust
     is abusing calls of the sort to detect availability of statx)

     This avoids path lookup code, lockref management, memory allocation
     and in case of NULL path userspace memory access (which can be
     quite expensive with SMAP on x86_64)

   - Don't block i_writecount during exec. Remove the
     deny_write_access() mechanism for executables

   - Relax open_by_handle_at() permissions in specific cases where we
     can prove that the caller had sufficient privileges to open a file

   - Switch timespec64 fields in struct inode to discrete integers
     freeing up 4 bytes

  Fixes:

   - Fix false positive circular locking warning in hfsplus

   - Initialize hfs_inode_info after hfs_alloc_inode() in hfs

   - Avoid accidental overflows in vfs_fallocate()

   - Don't interrupt fallocate with EINTR in tmpfs to avoid constantly
     restarting shmem_fallocate()

   - Add missing quote in comment in fs/readdir

  Cleanups:

   - Don't assign and test in an if statement in mqueue. Move the
     assignment out of the if statement

   - Reflow the logic in may_create_in_sticky()

   - Remove the usage of the deprecated ida_simple_xx() API from procfs

   - Reject FSCONFIG_CMD_CREATE_EXCL requets that depend on the new
     mount api early

   - Rename variables in copy_tree() to make it easier to understand

   - Replace WARN(down_read_trylock, ...) abuse with proper asserts in
     various places in the VFS

   - Get rid of user_path_at_empty() and drop the empty argument from
     getname_flags()

   - Check for error while copying and no path in one branch in
     getname_flags()

   - Avoid redundant smp_mb() for THP handling in do_dentry_open()

   - Rename parent_ino to d_parent_ino and make it use RCU

   - Remove unused header include in fs/readdir

   - Export in_group_capable() helper and switch f2fs and fuse over to
     it instead of open-coding the logic in both places"

* tag 'vfs-6.11.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (27 commits)
  ipc: mqueue: remove assignment from IS_ERR argument
  vfs: rename parent_ino to d_parent_ino and make it use RCU
  vfs: support statx(..., NULL, AT_EMPTY_PATH, ...)
  stat: use vfs_empty_path() helper
  fs: new helper vfs_empty_path()
  fs: reflow may_create_in_sticky()
  vfs: remove redundant smp_mb for thp handling in do_dentry_open
  fuse: Use in_group_or_capable() helper
  f2fs: Use in_group_or_capable() helper
  fs: Export in_group_or_capable()
  vfs: reorder checks in may_create_in_sticky
  hfs: fix to initialize fields of hfs_inode_info after hfs_alloc_inode()
  proc: Remove usage of the deprecated ida_simple_xx() API
  hfsplus: fix to avoid false alarm of circular locking
  Improve readability of copy_tree
  vfs: shave a branch in getname_flags
  vfs: retire user_path_at_empty and drop empty arg from getname_flags
  vfs: stop using user_path_at_empty in do_readlinkat
  tmpfs: don't interrupt fallocate with EINTR
  fs: don't block i_writecount during exec
  ...
2024-07-15 10:52:51 -07:00
Linus Torvalds
2ffd45da0b drm fixes for 6.10-rc8
amdgpu:
 - PSR-SU fix
 - Reseved VMID fix
 
 xe:
 - Use write-back caching mode for system memory on DGFX
 - Do not leak object when finalizing hdcp gsc
 
 bridge:
 - adv7511 EDID irq fix
 
 gma500:
 - NULL mode fixes.
 
 meson:
 - fix resource leak
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Merge tag 'drm-fixes-2024-07-12' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Oh I screwed up last week's fixes pull, and forgot to send..

  Back to work, thanks to Sima for last week, not too many fixes as
  expected getting close to release [ sic - Linus ], amdgpu and xe have
  a couple each, and then some other misc ones.

  amdgpu:
   - PSR-SU fix
   - Reseved VMID fix

  xe:
   - Use write-back caching mode for system memory on DGFX
   - Do not leak object when finalizing hdcp gsc

  bridge:
   - adv7511 EDID irq fix

  gma500:
   - NULL mode fixes.

  meson:
   - fix resource leak"

* tag 'drm-fixes-2024-07-12' of https://gitlab.freedesktop.org/drm/kernel:
  Revert "drm/amd/display: Reset freesync config before update new state"
  drm/xe/display/xe_hdcp_gsc: Free arbiter on driver removal
  drm/xe: Use write-back caching mode for system memory on DGFX
  drm/amdgpu: reject gang submit on reserved VMIDs
  drm/gma500: fix null pointer dereference in cdv_intel_lvds_get_modes
  drm/gma500: fix null pointer dereference in psb_intel_lvds_get_modes
  drm/meson: fix canvas release in bind function
  drm/bridge: adv7511: Fix Intermittent EDID failures
2024-07-15 10:07:31 -07:00
Linus Torvalds
5e04975536 Merge branch 'link_path_walk'
This is the last - for now - of the "look, we generated some
questionable code for basic pathname lookup operations" set of
branches.

This is mainly just re-organizing the name hashing code in
link_path_walk(), mostly by improving the calling conventions to
the inlined helper functions and moving some of the code around
to allow for more straightforward code generation.

The profiles - and the generated code - look much more palatable
to me now.

* link_path_walk:
  vfs: link_path_walk: move more of the name hashing into hash_name()
  vfs: link_path_walk: improve may_lookup() code generation
  vfs: link_path_walk: do '.' and '..' detection while hashing
  vfs: link_path_walk: clarify and improve name hashing interface
  vfs: link_path_walk: simplify name hash flow
2024-07-15 09:39:33 -07:00
Linus Torvalds
1654c37ddb Merge branch 'arm64-uaccess' (early part)
Merge arm64 support for proper 'unsafe' user accessor functionality,
with 'asm goto' for handling exceptions.

The arm64 user access code used the slow fallback code for the user
access code, which generates horrendous code for things like
strncpy_from_user(), because it causes us to generate code for SW PAN
and for range checking for every individual word.

Teach arm64 about 'user_access_begin()' and the so-called 'unsafe' user
access functions that take an error label and use 'asm goto' to make all
the exception handling be entirely out of line.

[ These user access functions are called 'unsafe' not because the
  concept is unsafe, but because the low-level accessor functions
  absolutely have to be protected by the 'user_access_begin()' code,
  because that's what does the range checking.

  So the accessor functions have that scary name to make sure people
  don't think they are usable on their own, and cannot be mis-used the
  way our old "double underscore" versions of __get_user() and friends
  were ]

The "(early part)" of the branch is because the full branch also
improved on the "access_ok()" function, but the exact semantics of TBI
(top byte ignore) have to be discussed before doing that part.  So this
just does the low-level accessor update to use "asm goto".

* 'arm64-uaccess' (early part):
  arm64: start using 'asm goto' for put_user()
  arm64: start using 'asm goto' for get_user() when available
2024-07-15 09:10:31 -07:00
Linus Torvalds
6a31ffdfed Merge branch 'word-at-a-time'
Merge minor word-at-a-time instruction choice improvements for x86 and
arm64.

This is the second of four branches that came out of me looking at the
code generation for path lookup on arm64.

The word-at-a-time infrastructure is used to do string operations in
chunks of one word both when copying the pathname from user space (in
strncpy_from_user()), and when parsing and hashing the individual path
components (in link_path_walk()).

In particular, the "find the first zero byte" uses various bit tricks to
figure out the end of the string or path component, and get the length
without having to do things one byte at a time.  Both x86-64 and arm64
had less than optimal code choices for that.

The commit message for the arm64 change in particular tries to explain
the exact code flow for the zero byte finding for people who care.  It's
made a bit more complicated by the fact that we support big-endian
hardware too, and so we have some extra abstraction layers to allow
different models for finding the zero byte, quite apart from the issue
of picking specialized instructions.

* word-at-a-time:
  arm64: word-at-a-time: improve byte count calculations for LE
  x86-64: word-at-a-time: improve byte count calculations
2024-07-15 08:55:10 -07:00