Move this API to the canonical timer_*() namespace.

[ tglx: Redone against pre rc1 ]

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com

Pull char / misc / iio driver updates from Greg KH:
 "Here is the big char/misc/iio and other small driver subsystem pull
  request for 6.16-rc1.

  Overall, a lot of individual changes, but nothing major, just the
  normal constant forward progress of new device support and cleanups to
  existing subsystems. Highlights in here are:

   - Large IIO driver updates and additions and device tree changes

   - Android binder bugfixes and logfile fixes

   - mhi driver updates

   - comedi driver updates

   - counter driver updates and additions

   - coresight driver updates and additions

   - echo driver removal as there are no in-kernel users of it

   - nvmem driver updates

   - spmi driver updates

   - new amd-sbi driver "subsystem" and drivers added

   - rust miscdriver binding documentation fix

   - other small driver fixes and updates (uio, w1, acrn, hpet,
     xillybus, cardreader drivers, fastrpc and others)

  All of these have been in linux-next for quite a while with no
  reported problems"

* tag 'char-misc-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (390 commits)
  binder: fix yet another UAF in binder_devices
  counter: microchip-tcb-capture: Add watch validation support
  dt-bindings: iio: adc: Add ROHM BD79100G
  iio: adc: add support for Nuvoton NCT7201
  dt-bindings: iio: adc: add NCT7201 ADCs
  iio: chemical: Add driver for SEN0322
  dt-bindings: trivial-devices: Document SEN0322
  iio: adc: ad7768-1: reorganize driver headers
  iio: bmp280: zero-init buffer
  iio: ssp_sensors: optimalize -> optimize
  HID: sensor-hub: Fix typo and improve documentation
  iio: admv1013: replace redundant ternary operator with just len
  iio: chemical: mhz19b: Fix error code in probe()
  iio: adc: at91-sama5d2: use IIO_DECLARE_BUFFER_WITH_TS
  iio: accel: sca3300: use IIO_DECLARE_BUFFER_WITH_TS
  iio: adc: ad7380: use IIO_DECLARE_DMA_BUFFER_WITH_TS
  iio: adc: ad4695: rename AD4695_MAX_VIN_CHANNELS
  iio: adc: ad4695: use IIO_DECLARE_DMA_BUFFER_WITH_TS
  iio: introduce IIO_DECLARE_BUFFER_WITH_TS macros
  iio: make IIO_DMA_MINALIGN minimum of 8 bytes
  ...

Pull iommu updates from Joerg Roedel:
 "Core:
   - Introduction of iommu-pages infrastructure to consolitate
     page-table allocation code among hardware drivers. This is
     ground-work for more generalization in the future
   - Remove IOMMU_DEV_FEAT_SVA and IOMMU_DEV_FEAT_IOPF feature flags
   - Convert virtio-iommu to domain_alloc_paging()
   - KConfig cleanups
   - Some small fixes for possible overflows and race conditions

  Intel VT-d driver:
   - Restore WO permissions on second-level paging entries
   - Use ida to manage domain id
   - Miscellaneous cleanups

  AMD-Vi:
   - Make sure notifiers finish running before module unload
   - Add support for HTRangeIgnore feature
   - Allow matching ACPI HID devices without matching UIDs

  ARM-SMMU:
   - SMMUv2:
      - Recognise the compatible string for SAR2130P MDSS in the
        Qualcomm driver, as this device requires an identity domain
      - Fix Adreno stall handling so that GPU debugging is more robust
        and doesn't e.g. result in deadlock
   - SMMUv3:
      - Fix ->attach_dev() error reporting for unrecognised domains
   - IO-pgtable:
      - Allow clients (notably, drivers that process requests from
        userspace) to silence warnings when mapping an already-mapped
        IOVA

  S390:
   - Add support for additional table regions

  Mediatek:
   - Add support for MT6893 MM IOMMU

  And some smaller fixes and improvements in various other drivers"

* tag 'iommu-updates-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (75 commits)
  iommu/vt-d: Restore context entry setup order for aliased devices
  iommu/mediatek: Fix compatible typo for mediatek,mt6893-iommu-mm
  iommu/arm-smmu-qcom: Make set_stall work when the device is on
  iommu/arm-smmu: Move handing of RESUME to the context fault handler
  iommu/arm-smmu-qcom: Enable threaded IRQ for Adreno SMMUv2/MMU500
  iommu/io-pgtable-arm: Add quirk to quiet WARN_ON()
  iommu: Clear the freelist after iommu_put_pages_list()
  iommu/vt-d: Change dmar_ats_supported() to return boolean
  iommu/vt-d: Eliminate pci_physfn() in dmar_find_matched_satc_unit()
  iommu/vt-d: Replace spin_lock with mutex to protect domain ida
  iommu/vt-d: Use ida to manage domain id
  iommu/vt-d: Restore WO permissions on second-level paging entries
  iommu/amd: Allow matching ACPI HID devices without matching UIDs
  iommu: make inclusion of arm/arm-smmu-v3 directory conditional
  iommu: make inclusion of riscv directory conditional
  iommu: make inclusion of amd directory conditional
  iommu: make inclusion of intel directory conditional
  iommu: remove duplicate selection of DMAR_TABLE
  iommu/fsl_pamu: remove trailing space after \n
  iommu/arm-smmu-qcom: Add SAR2130P MDSS compatible
  ...

Pull i2c updates from Wolfram Sang:
 "Core updates:
   - move towards using the 'fwnode' handle instead of 'of_node'
     (meaning 'of_node' even gets removed from i2c_board_info)
   - add support for Write Disable-aware SPD eeproms
   - minor stuff (use new helpers, typo fixes)

  i2c-atr (address translator) updates:
   - support per-channel alias pools
   - added support for dynamic address translation (also adds FPC202
     driver as its user)
   - add 'static' and 'passthrough' flags

  Cleanups and refactorings
   - Many drivers switched to dev_err_probe()
   - Generic cleanups applied to designware, iproc, ismt, mlxbf,
     npcm7xx, qcom-geni, pasemi, and thunderx
   - davinci: declare I2C mangling support among I2C features
   - designware: clean up DTS handling
   - designware: fix PM runtime on driver unregister
   - imx: improve error logging during probe
   - lpc2k: improve checks in probe error path
   - xgene-slimpro: improve PCC shared memory handling
   - pasemi: improve error handling in reset, smbus clear, timeouts
   - tegra: validate buffer length during transfers
   - wmt: convert binding to YAML format

  Improvements and extended support:
   - microchip-core: add SMBus support
   - mlxbf: add support for repeated start in block transfers
   - mlxbf: improve timer configuration
   - npcm: attempt clock toggle recovery before failing init
   - octeon: add support for block mode operations
   - pasemi: add support for unjam device feature
   - riic: add support for bus recovery

  New device support:
   - MediaTek Dimensity 1200 (MT6893)
   - Sophgo SG2044
   - Renesas RZ/V2N (R9A09G056)
   - Rockchip RK3528
   - AMD ISP (new driver)"

* tag 'i2c-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (89 commits)
  i2c: Use str_read_write() helper
  i2c: mlxbf: avoid 64-bit division
  i2c: viai2c-wmt: Replace dev_err() with dev_err_probe() in probe function
  i2c: designware: Don't warn about missing get_clk_rate_khz
  i2c: designware: Invoke runtime suspend on quick slave re-registration
  i2c-mlxbf: Improve I2C bus timing configuration
  i2c-mlxbf: Add repeated start condition support
  i2c: xgene-slimpro: Replace dev_err() with dev_err_probe() in probe function
  dt-bindings: i2c: i2c-wmt: Convert to YAML
  i2c: microchip-corei2c: add smbus support
  i2c: mlxbf: Allow build with COMPILE_TEST
  i2c: I2C_DESIGNWARE_AMDISP should depend on DRM_AMD_ISP
  i2c: atr: add passthrough flag
  i2c: atr: add static flag
  i2c: atr: allow replacing mappings in attach_addr()
  i2c: atr: deduplicate logic in attach_addr()
  i2c: atr: do not create mapping in detach_addr()
  i2c: atr: split up i2c_atr_get_mapping_by_addr()
  i2c: atr: find_mapping() -> get_mapping()
  i2c: atr: Fix lockdep for nested ATRs
  ...

Pull hardening updates from Kees Cook:

 - Update overflow helpers to ease refactoring of on-stack flex array
   instances (Gustavo A. R. Silva, Kees Cook)

 - lkdtm: Use SLAB_NO_MERGE instead of constructors (Harry Yoo)

 - Simplify CONFIG_CC_HAS_COUNTED_BY (Jan Hendrik Farr)

 - Disable u64 usercopy KUnit test on 32-bit SPARC (Thomas Weißschuh)

 - Add missed designated initializers now exposed by fixed randstruct
   (Nathan Chancellor, Kees Cook)

 - Document compilers versions for __builtin_dynamic_object_size

 - Remove ARM_SSP_PER_TASK GCC plugin

 - Fix GCC plugin randstruct, add selftests, and restore COMPILE_TEST
   builds

 - Kbuild: induce full rebuilds when dependencies change with GCC
   plugins, the Clang sanitizer .scl file, or the randstruct seed.

 - Kbuild: Switch from -Wvla to -Wvla-larger-than=1

 - Correct several __nonstring uses for -Wunterminated-string-initialization

* tag 'hardening-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (23 commits)
  Revert "hardening: Disable GCC randstruct for COMPILE_TEST"
  lib/tests: randstruct: Add deep function pointer layout test
  lib/tests: Add randstruct KUnit test
  randstruct: gcc-plugin: Remove bogus void member
  net: qede: Initialize qede_ll_ops with designated initializer
  scsi: qedf: Use designated initializer for struct qed_fcoe_cb_ops
  md/bcache: Mark __nonstring look-up table
  integer-wrap: Force full rebuild when .scl file changes
  randstruct: Force full rebuild when seed changes
  gcc-plugins: Force full rebuild when plugins change
  kbuild: Switch from -Wvla to -Wvla-larger-than=1
  hardening: simplify CONFIG_CC_HAS_COUNTED_BY
  overflow: Fix direct struct member initialization in _DEFINE_FLEX()
  kunit/overflow: Add tests for STACK_FLEX_ARRAY_SIZE() helper
  overflow: Add STACK_FLEX_ARRAY_SIZE() helper
  input/joystick: magellan: Mark __nonstring look-up table const
  watchdog: exar: Shorten identity name to fit correctly
  mod_devicetable: Enlarge the maximum platform_device_id name length
  overflow: Clarify expectations for getting DEFINE_FLEX variable sizes
  compiler_types: Identify compiler versions for __builtin_dynamic_object_size
  ...

Pull irq cleanups from Thomas Gleixner:
 "A set of cleanups for the generic interrupt subsystem:

   - Consolidate on one set of functions for the interrupt domain code
     to get rid of pointlessly duplicated code with only marginal
     different semantics.

   - Update the documentation accordingly and consolidate the coding
     style of the irqdomain header"

* tag 'irq-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
  irqdomain: Consolidate coding style
  irqdomain: Fix kernel-doc and add it to Documentation
  Documentation: irqdomain: Update it
  Documentation: irq-domain.rst: Simple improvements
  Documentation: irq/concepts: Minor improvements
  Documentation: irq/concepts: Add commas and reflow
  irqdomain: Improve kernel-docs of functions
  irqdomain: Make struct irq_domain_info variables const
  irqdomain: Use irq_domain_instantiate()'s return value as initializers
  irqdomain: Drop irq_linear_revmap()
  pinctrl: keembay: Switch to irq_find_mapping()
  irqchip/armada-370-xp: Switch to irq_find_mapping()
  gpu: ipu-v3: Switch to irq_find_mapping()
  gpio: idt3243x: Switch to irq_find_mapping()
  sh: Switch to irq_find_mapping()
  powerpc: Switch to irq_find_mapping()
  irqdomain: Drop irq_domain_add_*() functions
  powerpc: Switch irq_domain_add_nomap() to use fwnode
  thermal: Switch to irq_domain_create_linear()
  soc: Switch to irq_domain_create_*()
  ...

i2c-host updates for v6.16

Cleanups and refactorings
- Many drivers switched to dev_err_probe()
- Generic cleanups applied to designware, iproc, ismt, mlxbf,
  npcm7xx, qcom-geni, pasemi, and thunderx
- davinci: declare I2C mangling support among I2C features
- designware: clean up DTS handling
- designware: fix PM runtime on driver unregister
- imx: improve error logging during probe
- lpc2k: improve checks in probe error path
- xgene-slimpro: improve PCC shared memory handling
- pasemi: improve error handling in reset, smbus clear, timeouts
- tegra: validate buffer length during transfers
- wmt: convert binding to YAML format

Improvements and extended support:
- microchip-core: add SMBus support
- mlxbf: add support for repeated start in block transfers
- mlxbf: improve timer configuration
- npcm: attempt clock toggle recovery before failing init
- octeon: add support for block mode operations
- pasemi: add support for unjam device feature
- riic: add support for bus recovery

New device support:
- MediaTek Dimensity 1200 (MT6893)
- Sophgo SG2044
- Renesas RZ/V2N (R9A09G056)
- Rockchip RK3528
- AMD ISP (new driver)

Misc changes:
- core: add support for Write Disable-aware SPD

Some I2C ATRs do not support dynamic remapping, only static mapping
of direct children.

Mappings will only be added or removed as a result of devices being
added or removed from a child bus.

The ATR pool will have to be big enough to accommodate all devices
expected to be added to the child buses.

Add a new flag that prevents old mappings to be replaced or new mappings
to be created in the alias finding code paths. That mens adding a flags
parameter to i2c_atr_new() and an i2c_atr_flags enum.

Signed-off-by: Cosmin Tanislav <demonsingur@gmail.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Romain Gantois <romain.gantois@bootlin.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

During our test, it is found that a warning can be trigger in try_grab_folio
as follow:

  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 1678 at mm/gup.c:147 try_grab_folio+0x106/0x130
  Modules linked in:
  CPU: 0 UID: 0 PID: 1678 Comm: syz.3.31 Not tainted 6.15.0-rc5 #163 PREEMPT(undef)
  RIP: 0010:try_grab_folio+0x106/0x130
  Call Trace:
   <TASK>
   follow_huge_pmd+0x240/0x8e0
   follow_pmd_mask.constprop.0.isra.0+0x40b/0x5c0
   follow_pud_mask.constprop.0.isra.0+0x14a/0x170
   follow_page_mask+0x1c2/0x1f0
   __get_user_pages+0x176/0x950
   __gup_longterm_locked+0x15b/0x1060
   ? gup_fast+0x120/0x1f0
   gup_fast_fallback+0x17e/0x230
   get_user_pages_fast+0x5f/0x80
   vmci_host_unlocked_ioctl+0x21c/0xf80
  RIP: 0033:0x54d2cd
  ---[ end trace 0000000000000000 ]---

Digging into the source, context->notify_page may init by get_user_pages_fast
and can be seen in vmci_ctx_unset_notify which will try to put_page. However
get_user_pages_fast is not finished here and lead to following
try_grab_folio warning. The race condition is shown as follow:

cpu0			cpu1
vmci_host_do_set_notify
vmci_host_setup_notify
get_user_pages_fast(uva, 1, FOLL_WRITE, &context->notify_page);
lockless_pages_from_mm
gup_pgd_range
gup_huge_pmd  // update &context->notify_page
			vmci_host_do_set_notify
			vmci_ctx_unset_notify
			notify_page = context->notify_page;
			if (notify_page)
			put_page(notify_page);	// page is freed
__gup_longterm_locked
__get_user_pages
follow_trans_huge_pmd
try_grab_folio // warn here

To slove this, use local variable page to make notify_page can be seen
after finish get_user_pages_fast.

Fixes: a1d88436d53a ("VMCI: Fix two UVA mapping bugs")
Cc: stable <stable@kernel.org>
Closes: https://lore.kernel.org/all/e91da589-ad57-3969-d979-879bbd10dddd@huawei.com/
Signed-off-by: Wupeng Ma <mawupeng1@huawei.com>
Link: https://lore.kernel.org/r/20250510033040.901582-1-mawupeng1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>