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2025-06-10driver core: faux: Quiet probe failuresDan Williams1-1/+1
The acpi-einj conversion to faux_device_create() leads to a noisy error message when the error injection facility is disabled. Quiet the error as CXL error injection via ACPI expects the module to stay loaded even if the error injection facility is disabled. This situation arose because CXL knows proper kernel named objects to trigger errors against, but acpi-einj knows how to perform the error injection. The injection mechanism is shared with non-CXL use cases. The result is CXL now has a module dependency on einj-core.ko, and init/probe failures are handled at runtime. Fixes: 6cb9441bfe8d ("ACPI: APEI: EINJ: Transition to the faux device interface") Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://patch.msgid.link/20250607033228.1475625-3-dan.j.williams@intel.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-06-10driver core: faux: Suppress bind attributesDan Williams1-0/+1
faux_device_create() is almost a suitable candidate to replace platform_driver_probe() if not for the fact that faux_device_create() supports dynamic attach/detach of the driver. Drop the bind attributes with the expectation that simple faux devices can always assume that the device is permanently bound at create, and only unbound at 'destroy'. The acpi-einj driver depends on static bind. Fixes: 6cb9441bfe8d ("ACPI: APEI: EINJ: Transition to the faux device interface") Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://patch.msgid.link/20250607033228.1475625-2-dan.j.williams@intel.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-06-08treewide, timers: Rename from_timer() to timer_container_of()Ingo Molnar2-2/+2
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
2025-06-06Merge tag 'char-misc-6.16-rc1' of ↵Linus Torvalds1-0/+27
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc 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 ...
2025-06-05Merge tag 'pm-6.16-rc1-3' of ↵Linus Torvalds1-4/+12
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "Fix three issues introduced into device suspend/resume error paths in the PM core by some of the recent updates. First off, replace list_splice() with list_splice_init() in three places in device suspend error paths to avoid attempting to use an uninitialized list head going forward. Second, rearrange device_resume() to avoid leaking the power.is_suspended device PM flag to the next system suspend/resume cycle where it can confuse rolling back after an error or early wakeup. Finally, add synchronization to dpm_async_resume_children() to avoid resetting the async state mistakenly for devices whose resume callbacks have already been queued up for asynchronous execution in the given device resume phase, which fortunately can happen only if the preceding system suspend transition has been aborted" * tag 'pm-6.16-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: sleep: Add locking to dpm_async_resume_children() PM: sleep: Fix power.is_suspended cleanup for direct-complete devices PM: sleep: Fix list splicing in device suspend error paths
2025-06-03PM: sleep: Add locking to dpm_async_resume_children()Rafael J. Wysocki1-0/+7
Commit 0cbef962ce1f ("PM: sleep: Resume children after resuming the parent") introduced a subtle concurrency issue that may lead to a kernel crash if system suspend is aborted and may also slow down asynchronous device resume otherwise. Namely, the initial list walks in dpm_noirq_resume_devices(), dpm_resume_early(), and dpm_resume() call dpm_clear_async_state() for every device and attempt to asynchronously resume it if it has no children (so it is a "root" device). The asynchronous resume of a root device triggers an attempt to asynchronously resume its children which may take place before calling dpm_clear_async_state() for them due to the lack of synchronization between dpm_async_resume_children() and the code calling dpm_clear_async_state(). If this happens, the dpm_clear_async_state() that comes in late, will clear power.work_in_progress for the given device after it has been set by __dpm_async(), so the suspend callback will be allowed to run once again for the same device during the same transition. This leads to a whole range of interesting breakage. Fortunately, if the suspend transition is not aborted, power.work_in_progress is set by it for all devices, so dpm_async_resume_children() will not schedule asynchronous resume for them until dpm_clear_async_state() clears that flag, but this means missing an opportunity to start the resume of those devices earlier. Address the above issue by adding dpm_list_mtx locking to dpm_async_resume_children(), so it will wait for the entire initial list walk and the invocation of dpm_clear_async_state() for all devices to be completed before scheduling any new asynchronous resume callbacks. Fixes: 0cbef962ce1f ("PM: sleep: Resume children after resuming the parent") Link: https://gitlab.freedesktop.org/drm/amd/-/issues/4280 Reported-and-tested-by: Chris Bainbridge <chris.bainbridge@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://patch.msgid.link/13779172.uLZWGnKmhe@rjwysocki.net
2025-06-03PM: sleep: Fix power.is_suspended cleanup for direct-complete devicesRafael J. Wysocki1-1/+2
Commit 03f1444016b7 ("PM: sleep: Fix handling devices with direct_complete set on errors") caused power.is_suspended to be set for devices with power.direct_complete set, but it forgot to ensure the clearing of that flag for them in device_resume(), so power.is_suspended is still set for them during the next system suspend-resume cycle. If that cycle is aborted in dpm_suspend(), the subsequent invocation of dpm_resume() will trigger a device_resume() call for every device and because power.is_suspended is set for the devices in question, they will not be skipped by device_resume() as expected which causes scary error messages to be logged (as appropriate). To address this issue, move the clearing of power.is_suspended in device_resume() immediately after the power.is_suspended check so it will be always cleared for all devices processed by that function. Fixes: 03f1444016b7 ("PM: sleep: Fix handling devices with direct_complete set on errors") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4280 Reported-and-tested-by: Chris Bainbridge <chris.bainbridge@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://patch.msgid.link/4990586.GXAFRqVoOG@rjwysocki.net
2025-06-03PM: sleep: Fix list splicing in device suspend error pathsRafael J. Wysocki1-3/+3
Commits aa7a9275ab81 ("PM: sleep: Suspend async parents after suspending children") and 443046d1ad66 ("PM: sleep: Make suspend of devices more asynchronous") added list splicing to the error paths of dpm_suspend(), dpm_suspend_late(), and dpm_noirq_suspend_devices(), but they should have used the list_splice_init() variant because the emptied list is used going forward in all of these cases. Replace list_splice() with list_splice_init() in the code in question as appropriate. Fixes: aa7a9275ab81 ("PM: sleep: Suspend async parents after suspending children") Fixes: 443046d1ad66 ("PM: sleep: Make suspend of devices more asynchronous") Link: https://gitlab.freedesktop.org/drm/amd/-/issues/4280 Reported-and-tested-by: Chris Bainbridge <chris.bainbridge@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://patch.msgid.link/4659282.LvFx2qVVIh@rjwysocki.net
2025-06-03Merge tag 'leds-next-6.16' of ↵Linus Torvalds1-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds Pull LED updates from Lee Jones: "LED Triggers: - Allow writing "default" to the sysfs 'trigger' attribute to set an LED to its default trigger - If the default trigger is "none", writing "default" will remove the current trigger - Updated sysfs ABI documentation for the new "default" trigger functionality LED KUnit Testing: - Provide a skeleton KUnit test suite for the LEDs framework - Expand the LED class device registration KUnit test to cover more scenarios, including 'brightness_get' behavior - Add KUnit tests for the LED lookup and get API ('led_add_lookup', 'devm_led_get') LED Flash Class: - Add support for setting flash/strobe duration through a new 'duration_set' op and 'led_set_flash_duration()' function, aligning with 'V4L2_CID_FLASH_DURATION' Texas Instruments TPS6131x: - Add a new driver for the TPS61310/TPS61311 flash LED controllers - The driver supports the device's three constant-current sinks for flash and torch modes LED Core: - Prevent potential 'snprintf()' truncations in LED names by checking for buffer overflows ChromeOS EC LEDs: - Avoid a -Wflex-array-member-not-at-end GCC warning by replacing an on-stack flexible structure definition with a utility function call Multicolor LEDs: - Fix issue where setting multi_intensity while software blinking is active could stop blinking PCA955x LEDs: - Avoid potential buffer overflow when creating default labels by changing a field's type to 'u8' and updating format specifiers PCA995x LEDs: - Fix a typo (stray space) in an 'of_device_id' entry in the 'pca995x_of_match' table Kconfig: - Prevent LED drivers from being enabled by default when 'COMPILE_TEST' is set Device Property API: - Split 'device_get_child_node_count()' into a new helper 'fwnode_get_child_node_count()' that doesn't require a device struct, making the API more symmetrical Driver Modernization (using 'fwnode_get_child_node_count()'): - Update 'leds-pwm-multicolor', 'leds-ncp5623' and 'leds-ncp5623' to use the new 'fwnode_get_child_node_count()' helper, removing their custom implementation - As above in the USB Type-C TCPM driver Driver Modernization (using new GPIO setter callbacks): - Convert 'leds-lgm-sso' to use new GPIO line value setter callbacks which return an integer for error handling - Convert 'leds-pca955x', 'leds-pca9532' and 'leds-tca6507' to use new GPIO setter callbacks Documentation: - Remove the '.rst' extension for 'leds-st1202' in the documentation index for consistency LP8860 LEDs: - Use 'regmap_multi_reg_write()' for EEPROM writes instead of manual looping - Use scoped mutex guards and 'devm_mutex_init()' to simplify function exits and ensure automatic cleanup - Remove default register definitions that are unused when regmap caching is not active - Use 'devm_regulator_get_enable_optional()' to handle the optional regulator, simplifying enabling and removing manual disabling - Refactor 'lp8860_unlock_eeprom()' to only perform the unlock operation, removing the lock part and an unnecessary parameter - Use a 'devm' action to disable the enable-GPIO, simplifying cleanup and error paths, and remove the now-empty '.remove()' function Turris Omnia LEDs: - Drop unnecessary commas in terminator entries of 'struct attribute' and 'struct of_device_id' arrays MT6370 RGB LEDs: - Use the 'LINEAR_RANGE()' for defining 'struct linear_range' entries to improve robustness Texas Instruments TPS6131x: - Add new devicetree bindings for the TI TPS61310/TPS61311 flash LED driver" * tag 'leds-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (31 commits) leds: tps6131x: Add support for Texas Instruments TPS6131X flash LED driver dt-bindings: leds: Add Texas Instruments TPS6131x flash LED driver leds: flash: Add support for flash/strobe duration leds: rgb: leds-mt6370-rgb: Improve definition of some struct linear_range leds: led-test: Provide tests for the lookup and get infrastructure leds: led-test: Fill out the registration test to cover more test cases leds: led-test: Remove standard error checking after KUNIT_ASSERT_*() leds: pca995x: Fix typo in pca995x_of_match's of_device_id entry leds: Provide skeleton KUnit testing for the LEDs framework leds: tca6507: Use new GPIO line value setter callbacks leds: pca9532: Use new GPIO line value setter callbacks leds: pca955x: Use new GPIO line value setter callbacks leds: lgm-sso: Use new GPIO line value setter callbacks leds: Do not enable by default during compile testing leds: turris-omnia: Drop commas in the terminator entries leds: lp8860: Disable GPIO with devm action leds: lp8860: Only unlock in lp8860_unlock_eeprom() leds: lp8860: Enable regulator using enable_optional helper leds: lp8860: Remove default regs when not caching leds: lp8860: Use new mutex guards to cleanup function exits ...
2025-05-31Merge tag 'mm-stable-2025-05-31-14-50' of ↵Linus Torvalds2-0/+60
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - "Add folio_mk_pte()" from Matthew Wilcox simplifies the act of creating a pte which addresses the first page in a folio and reduces the amount of plumbing which architecture must implement to provide this. - "Misc folio patches for 6.16" from Matthew Wilcox is a shower of largely unrelated folio infrastructure changes which clean things up and better prepare us for future work. - "memory,x86,acpi: hotplug memory alignment advisement" from Gregory Price adds early-init code to prevent x86 from leaving physical memory unused when physical address regions are not aligned to memory block size. - "mm/compaction: allow more aggressive proactive compaction" from Michal Clapinski provides some tuning of the (sadly, hard-coded (more sadly, not auto-tuned)) thresholds for our invokation of proactive compaction. In a simple test case, the reduction of a guest VM's memory consumption was dramatic. - "Minor cleanups and improvements to swap freeing code" from Kemeng Shi provides some code cleaups and a small efficiency improvement to this part of our swap handling code. - "ptrace: introduce PTRACE_SET_SYSCALL_INFO API" from Dmitry Levin adds the ability for a ptracer to modify syscalls arguments. At this time we can alter only "system call information that are used by strace system call tampering, namely, syscall number, syscall arguments, and syscall return value. This series should have been incorporated into mm.git's "non-MM" branch, but I goofed. - "fs/proc: extend the PAGEMAP_SCAN ioctl to report guard regions" from Andrei Vagin extends the info returned by the PAGEMAP_SCAN ioctl against /proc/pid/pagemap. This permits CRIU to more efficiently get at the info about guard regions. - "Fix parameter passed to page_mapcount_is_type()" from Gavin Shan implements that fix. No runtime effect is expected because validate_page_before_insert() happens to fix up this error. - "kernel/events/uprobes: uprobe_write_opcode() rewrite" from David Hildenbrand basically brings uprobe text poking into the current decade. Remove a bunch of hand-rolled implementation in favor of using more current facilities. - "mm/ptdump: Drop assumption that pxd_val() is u64" from Anshuman Khandual provides enhancements and generalizations to the pte dumping code. This might be needed when 128-bit Page Table Descriptors are enabled for ARM. - "Always call constructor for kernel page tables" from Kevin Brodsky ensures that the ctor/dtor is always called for kernel pgtables, as it already is for user pgtables. This permits the addition of more functionality such as "insert hooks to protect page tables". This change does result in various architectures performing unnecesary work, but this is fixed up where it is anticipated to occur. - "Rust support for mm_struct, vm_area_struct, and mmap" from Alice Ryhl adds plumbing to permit Rust access to core MM structures. - "fix incorrectly disallowed anonymous VMA merges" from Lorenzo Stoakes takes advantage of some VMA merging opportunities which we've been missing for 15 years. - "mm/madvise: batch tlb flushes for MADV_DONTNEED and MADV_FREE" from SeongJae Park optimizes process_madvise()'s TLB flushing. Instead of flushing each address range in the provided iovec, we batch the flushing across all the iovec entries. The syscall's cost was approximately halved with a microbenchmark which was designed to load this particular operation. - "Track node vacancy to reduce worst case allocation counts" from Sidhartha Kumar makes the maple tree smarter about its node preallocation. stress-ng mmap performance increased by single-digit percentages and the amount of unnecessarily preallocated memory was dramaticelly reduced. - "mm/gup: Minor fix, cleanup and improvements" from Baoquan He removes a few unnecessary things which Baoquan noted when reading the code. - ""Enhance sysfs handling for memory hotplug in weighted interleave" from Rakie Kim "enhances the weighted interleave policy in the memory management subsystem by improving sysfs handling, fixing memory leaks, and introducing dynamic sysfs updates for memory hotplug support". Fixes things on error paths which we are unlikely to hit. - "mm/damon: auto-tune DAMOS for NUMA setups including tiered memory" from SeongJae Park introduces new DAMOS quota goal metrics which eliminate the manual tuning which is required when utilizing DAMON for memory tiering. - "mm/vmalloc.c: code cleanup and improvements" from Baoquan He provides cleanups and small efficiency improvements which Baoquan found via code inspection. - "vmscan: enforce mems_effective during demotion" from Gregory Price changes reclaim to respect cpuset.mems_effective during demotion when possible. because presently, reclaim explicitly ignores cpuset.mems_effective when demoting, which may cause the cpuset settings to violated. This is useful for isolating workloads on a multi-tenant system from certain classes of memory more consistently. - "Clean up split_huge_pmd_locked() and remove unnecessary folio pointers" from Gavin Guo provides minor cleanups and efficiency gains in in the huge page splitting and migrating code. - "Use kmem_cache for memcg alloc" from Huan Yang creates a slab cache for `struct mem_cgroup', yielding improved memory utilization. - "add max arg to swappiness in memory.reclaim and lru_gen" from Zhongkun He adds a new "max" argument to the "swappiness=" argument for memory.reclaim MGLRU's lru_gen. This directs proactive reclaim to reclaim from only anon folios rather than file-backed folios. - "kexec: introduce Kexec HandOver (KHO)" from Mike Rapoport is the first step on the path to permitting the kernel to maintain existing VMs while replacing the host kernel via file-based kexec. At this time only memblock's reserve_mem is preserved. - "mm: Introduce for_each_valid_pfn()" from David Woodhouse provides and uses a smarter way of looping over a pfn range. By skipping ranges of invalid pfns. - "sched/numa: Skip VMA scanning on memory pinned to one NUMA node via cpuset.mems" from Libo Chen removes a lot of pointless VMA scanning when a task is pinned a single NUMA mode. Dramatic performance benefits were seen in some real world cases. - "JFS: Implement migrate_folio for jfs_metapage_aops" from Shivank Garg addresses a warning which occurs during memory compaction when using JFS. - "move all VMA allocation, freeing and duplication logic to mm" from Lorenzo Stoakes moves some VMA code from kernel/fork.c into the more appropriate mm/vma.c. - "mm, swap: clean up swap cache mapping helper" from Kairui Song provides code consolidation and cleanups related to the folio_index() function. - "mm/gup: Cleanup memfd_pin_folios()" from Vishal Moola does that. - "memcg: Fix test_memcg_min/low test failures" from Waiman Long addresses some bogus failures which are being reported by the test_memcontrol selftest. - "eliminate mmap() retry merge, add .mmap_prepare hook" from Lorenzo Stoakes commences the deprecation of file_operations.mmap() in favor of the new file_operations.mmap_prepare(). The latter is more restrictive and prevents drivers from messing with things in ways which, amongst other problems, may defeat VMA merging. - "memcg: decouple memcg and objcg stocks"" from Shakeel Butt decouples the per-cpu memcg charge cache from the objcg's one. This is a step along the way to making memcg and objcg charging NMI-safe, which is a BPF requirement. - "mm/damon: minor fixups and improvements for code, tests, and documents" from SeongJae Park is yet another batch of miscellaneous DAMON changes. Fix and improve minor problems in code, tests and documents. - "memcg: make memcg stats irq safe" from Shakeel Butt converts memcg stats to be irq safe. Another step along the way to making memcg charging and stats updates NMI-safe, a BPF requirement. - "Let unmap_hugepage_range() and several related functions take folio instead of page" from Fan Ni provides folio conversions in the hugetlb code. * tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (285 commits) mm: pcp: increase pcp->free_count threshold to trigger free_high mm/hugetlb: convert use of struct page to folio in __unmap_hugepage_range() mm/hugetlb: refactor __unmap_hugepage_range() to take folio instead of page mm/hugetlb: refactor unmap_hugepage_range() to take folio instead of page mm/hugetlb: pass folio instead of page to unmap_ref_private() memcg: objcg stock trylock without irq disabling memcg: no stock lock for cpu hot-unplug memcg: make __mod_memcg_lruvec_state re-entrant safe against irqs memcg: make count_memcg_events re-entrant safe against irqs memcg: make mod_memcg_state re-entrant safe against irqs memcg: move preempt disable to callers of memcg_rstat_updated memcg: memcg_rstat_updated re-entrant safe against irqs mm: khugepaged: decouple SHMEM and file folios' collapse selftests/eventfd: correct test name and improve messages alloc_tag: check mem_profiling_support in alloc_tag_init Docs/damon: update titles and brief introductions to explain DAMOS selftests/damon/_damon_sysfs: read tried regions directories in order mm/damon/tests/core-kunit: add a test for damos_set_filters_default_reject() mm/damon/paddr: remove unused variable, folio_list, in damon_pa_stat() mm/damon/sysfs-schemes: fix wrong comment on damons_sysfs_quota_goal_metric_strs ...
2025-05-29Merge tag 'driver-core-6.16-rc1' of ↵Linus Torvalds9-56/+140
git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core Pull driver core updates from Greg KH: "Here are the driver core / kernfs changes for 6.16-rc1. Not a huge number of changes this development cycle, here's the summary of what is included in here: - kernfs locking tweaks, pushing some global locks down into a per-fs image lock - rust driver core and pci device bindings added for new features. - sysfs const work for bin_attributes. The final churn of switching away from and removing the transitional struct members, "read_new", "write_new" and "bin_attrs_new" will come after the merge window to avoid unnecesary merge conflicts. - auxbus device creation helpers added - fauxbus fix for creating sysfs files after the probe completed properly - other tiny updates for driver core things. All of these have been in linux-next for over a week with no reported issues" * tag 'driver-core-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: kernfs: Relax constraint in draining guard Documentation: embargoed-hardware-issues.rst: Remove myself drivers: hv: fix up const issue with vmbus_chan_bin_attrs firmware_loader: use SHA-256 library API instead of crypto_shash API docs: debugfs: do not recommend debugfs_remove_recursive PM: wakeup: Do not expose 4 device wakeup source APIs kernfs: switch global kernfs_rename_lock to per-fs lock kernfs: switch global kernfs_idr_lock to per-fs lock driver core: auxiliary bus: Fix IS_ERR() vs NULL mixup in __devm_auxiliary_device_create() sysfs: constify attribute_group::bin_attrs sysfs: constify bin_attribute argument of bin_attribute::read/write() software node: Correct a OOB check in software_node_get_reference_args() devres: simplify devm_kstrdup() using devm_kmemdup() platform: replace magic number with macro PLATFORM_DEVID_NONE component: do not try to unbind unbound components driver core: auxiliary bus: add device creation helpers driver core: faux: Add sysfs groups after probing
2025-05-27Merge tag 'pm-6.16-rc1' of ↵Linus Torvalds7-94/+247
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "Once again, the changes are dominated by cpufreq updates, but this time the majority of them are cpufreq core changes, mostly related to the introduction of policy locking guards and __free() usage, and fixes related to boost handling. Still, there is also a significant update of the intel_pstate driver making it register an energy model when running on a hybrid platform which is used for enabling energy-aware scheduling (EAS) if the driver operates in the passive mode (and schedutil is used as the cpufreq governor for all CPUs which is the passive mode default). There are some amd-pstate driver updates too, for a good measure, including the "Requested CPU Min frequency" BIOS option support and new online/offline callbacks. In the cpuidle space, the most significant change is the addition of a C1 demotion on/off sysfs knob to intel_idle which should help some users to configure their systems more precisely. There is also the conversion of the PSCI cpuidle driver to a faux device one and there are two small updates of cpuidle governors. Device power management is also modified quite a bit, especially the handling of devices with asynchronous suspend and resume enabled during system transitions. They are now going to be handled more asynchronously during suspend transitions and somewhat less aggressively during resume transitions. Apart from the above, the operating performance points (OPP) library is now going to use mutex locking guards and scope-based cleanup helpers and there is the usual bunch of assorted fixes and code cleanups. Specifics: - Fix potential division-by-zero error in em_compute_costs() (Yaxiong Tian) - Fix typos in energy model documentation and example driver code (Moon Hee Lee, Atul Kumar Pant) - Rearrange the energy model management code and add a new function for adjusting a CPU energy model after adjusting the capacity of the given CPU to it (Rafael Wysocki) - Refactor cpufreq_online(), add and use cpufreq policy locking guards, use __free() in policy reference counting, and clean up core cpufreq code on top of that (Rafael Wysocki) - Fix boost handling on CPU suspend/resume and sysfs updates (Viresh Kumar) - Fix des_perf clamping with max_perf in amd_pstate_update() (Dhananjay Ugwekar) - Add offline, online and suspend callbacks to the amd-pstate driver, rename and use the existing amd_pstate_epp callbacks in it (Dhananjay Ugwekar) - Add support for the "Requested CPU Min frequency" BIOS option to the amd-pstate driver (Dhananjay Ugwekar) - Reset amd-pstate driver mode after running selftests (Swapnil Sapkal) - Avoid shadowing ret in amd_pstate_ut_check_driver() (Nathan Chancellor) - Add helper for governor checks to the schedutil cpufreq governor and move cpufreq-specific EAS checks to cpufreq (Rafael Wysocki) - Populate the cpu_capacity sysfs entries from the intel_pstate driver after registering asym capacity support (Ricardo Neri) - Add support for enabling Energy-aware scheduling (EAS) to the intel_pstate driver when operating in the passive mode on a hybrid platform (Rafael Wysocki) - Drop redundant cpus_read_lock() from store_local_boost() in the cpufreq core (Seyediman Seyedarab) - Replace sscanf() with kstrtouint() in the cpufreq code and use a symbol instead of a raw number in it (Bowen Yu) - Add support for autonomous CPU performance state selection to the CPPC cpufreq driver (Lifeng Zheng) - OPP: Add dev_pm_opp_set_level() (Praveen Talari) - Introduce scope-based cleanup headers and mutex locking guards in OPP core (Viresh Kumar) - Switch OPP to use kmemdup_array() (Zhang Enpei) - Optimize bucket assignment when next_timer_ns equals KTIME_MAX in the menu cpuidle governor (Zhongqiu Han) - Convert the cpuidle PSCI driver to a faux device one (Sudeep Holla) - Add C1 demotion on/off sysfs knob to the intel_idle driver (Artem Bityutskiy) - Fix typos in two comments in the teo cpuidle governor (Atul Kumar Pant) - Fix denying of auto suspend in pm_suspend_timer_fn() (Charan Teja Kalla) - Move debug runtime PM attributes to runtime_attrs[] (Rafael Wysocki) - Add new devm_ functions for enabling runtime PM and runtime PM reference counting (Bence Csókás) - Remove size arguments from strscpy() calls in the hibernation core code (Thorsten Blum) - Adjust the handling of devices with asynchronous suspend enabled during system suspend and resume to start resuming them immediately after resuming their parents and to start suspending such a device immediately after suspending its first child (Rafael Wysocki) - Adjust messages printed during tasks freezing to avoid using pr_cont() (Andrew Sayers, Paul Menzel) - Clean up unnecessary usage of !! in pm_print_times_init() (Zihuan Zhang) - Add missing wakeup source attribute relax_count to sysfs and remove the space character at the end ofi the string produced by pm_show_wakelocks() (Zijun Hu) - Add configurable pm_test delay for hibernation (Zihuan Zhang) - Disable asynchronous suspend in ucsi_ccg_probe() to prevent the cypd4226 device on Tegra boards from suspending prematurely (Jon Hunter) - Unbreak printing PM debug messages during hibernation and clean up some related code (Rafael Wysocki) - Add a systemd service to run cpupower and change cpupower binding's Makefile to use -lcpupower (John B. Wyatt IV, Francesco Poli)" * tag 'pm-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (72 commits) cpufreq: CPPC: Add support for autonomous selection cpufreq: Update sscanf() to kstrtouint() cpufreq: Replace magic number OPP: switch to use kmemdup_array() PM: freezer: Rewrite restarting tasks log to remove stray *done.* PM: runtime: fix denying of auto suspend in pm_suspend_timer_fn() cpufreq: drop redundant cpus_read_lock() from store_local_boost() cpupower: do not install files to /etc/default/ cpupower: do not call systemctl at install time cpupower: do not write DESTDIR to cpupower.service PM: sleep: Introduce pm_sleep_transition_in_progress() cpufreq/amd-pstate: Avoid shadowing ret in amd_pstate_ut_check_driver() cpufreq: intel_pstate: Document hybrid processor support cpufreq: intel_pstate: EAS: Increase cost for CPUs using L3 cache cpufreq: intel_pstate: EAS support for hybrid platforms PM: EM: Introduce em_adjust_cpu_capacity() PM: EM: Move CPU capacity check to em_adjust_new_capacity() PM: EM: Documentation: Fix typos in example driver code cpufreq: Drop policy locking from cpufreq_policy_is_good_for_eas() PM: sleep: Introduce pm_suspend_in_progress() ...
2025-05-27Merge tag 'spi-v6.16' of ↵Linus Torvalds1-0/+44
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "The bulk of the changes in this release are driver work, as well as new device support we have some important work on performance over several drivers, and big overhauls for maintainability on a couple too. Highlights include: - Big cleanups of the sh-msiof driver from Geert Uytterhoeven, and of the NXP FSPI driver from Haibo Chen - Performance improvements for the AXI SPI engine - Support for writes to memory mapped flashes on Renesas devices - Integrated DMA support for Tegra210 QSPI, used by the Tegra234 - DMA support for Amlogic SPI controllers - Support for AMD HID2, Qualcomm IPQ5018, Renesas RZ/G3E, Rockchip RK3528 and Samsung Exynos Autov920 An update to fix some issues with the Atmel QSPI driver runtime PM pulled in a new API from the PM core, and the Renesas memory mapped write changes pull in some code that's shared in drivers/memory" * tag 'spi-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (90 commits) spi: spi-qpic-snand: return early on error from qcom_spi_io_op() spi: loopback-test: fix up const pointer issue in rx_ranges_cmp() spi: gpio: fix const issue in spi_to_spi_gpio() spi: spi-qpic-snand: remove superfluous parameters of qcom_spi_check_error() dt-bindings: spi: samsung: add exynosautov920-spi compatible spi: spi-qpic-snand: reuse qcom_spi_check_raw_flash_errors() spi: dt-bindings: Add rk3528-spi compatible spi: spi_amd: Update Kconfig dependencies spi: spi_amd: Add HIDDMA basic write support spi: spi_amd: Remove read{q,b} usage on DMA buffer spi: sh-msiof: Move register definitions to <linux/spi/sh_msiof.h> spi: sh-msiof: Document frame start sync pulse mode spi: sh-msiof: Double maximum DMA transfer size using two groups spi: sh-msiof: Simplify BRG's Division Ratio spi: sh-msiof: Increase TX FIFO size for R-Car V4H/V4M spi: sh-msiof: Correct RX FIFO size for R-Car Gen3 spi: sh-msiof: Correct RX FIFO size for R-Car Gen2 spi: sh-msiof: Add core support for dual-group transfers spi: sh-msiof: Correct SIMDR2_GRPMASK spi: sh-msiof: SIFCTR bitfield conversion ...
2025-05-27Merge tag 'regmap-v6.16' of ↵Linus Torvalds3-47/+73
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap updates from Mark Brown: "This release we have one new feature, support for chips that report edge interrupts but don't provide distinct readback of that status per line, plus a few cleanups" * tag 'regmap-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: irq: Add support for chips without separate IRQ status regmap-irq: Use dedicated interrupt wake setters regmap: Move selecting for REGMAP_MDIO and REGMAP_IRQ regcache: Use sort()'s default swap() implementation
2025-05-27Merge tag 'gpio-updates-for-v6.16-rc1' of ↵Linus Torvalds1-0/+11
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "We have three new drivers, some refactoring in the GPIO core, lots of various changes across many drivers, new configfs interface for the virtual gpio-aggregator module and DT-bindings updates. The treewide conversion of GPIO drivers to using the new value setter callbacks is ongoing with another round of GPIO drivers updated. You will also see these commits coming in from other subsystems as with the relevant changes merged into mainline last cycle, I've started converting GPIO providers located elsewhere than drivers/gpio/. GPIO core: - use more lock guards where applicable - refactor GPIO ACPI code and shrink it in the process by 8% - move GPIO ACPI quirks into a separate file - remove unneeded #ifdef - convert GPIO devres helpers to using devm_add_action() where applicable which shrinks and simplifies the code - refactor GPIO descriptor validation in GPIO consumer interfaces - don't allow setting values on input lines in the GPIO core which will take off the burden from GPIO drivers of checking this down the line - provide gpiod_is_equal() as a way of safely comparing two GPIO descriptors (the only current user is in regulator core) New drivers: - add the GPIO module for the max77759 multifunction device - add the GPIO driver for the VeriSilicon BLZP1600 GPIO controller - add the GPIO driver for the Spacemit K1 SoC Driver improvements: - convert more drivers to using the new GPIO line value setter callbacks - convert more drivers to making the irq_chip immutable as is recommended by the interrupt subsystem - extend build testing coverage by enabling more modules to be built with COMPILE_TEST=y - extend the gpio-aggregator module with a configfs interface that makes the setup easier for user-space than the existing driver-level sysfs attributes and also adds more advanced configuration features (such as referring to aggregated lines by their original names or modifying their names as exposed by the aggregated chip) - add a missing mutex_destroy() in gpio-imx-scu - add an OF polarity quirk for s5m8767 - allow building gpio-vf610 as a loadable module - make gpio-mxc not hardcode its GPIO base number with GPIO SYSFS interface disabled (another small step towards getting rid of the global GPIO numberspace) - add support for level-triggered interrupts to gpio-pca953x - don't double-check the ngpios property in gpio-ds4520 as GPIO core already does it - don't double-check the number of GPIOs in gpio-imx-scu as GPIO core already does it - remove unused callbacks from gpio-max3191x DT bindings: - add device-tree bindings for max77759, spacemit,k1 and blzp1600 (new drivers added this cycle) - document more properties for gpio-vf610 and gpio-tegra186 - document a new pca95xx variant - fix style of examples in several GPIO DT-binding documents Misc: - TODO list updates" * tag 'gpio-updates-for-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (123 commits) gpio: timberdale: select GPIOLIB_IRQCHIP gpio: lpc18xx: select GPIOLIB_IRQCHIP gpio: grgpio: select GPIOLIB_IRQCHIP gpio: bcm-kona: select GPIOLIB_IRQCHIP dt-bindings: gpio: vf610: add ngpios and gpio-reserved-ranges gpio: davinci: select GPIOLIB_IRQCHIP gpiolib-acpi: Update file references in the Documentation and MAINTAINERS gpiolib: acpi: Move quirks to a separate file gpiolib: acpi: Add acpi_gpio_need_run_edge_events_on_boot() getter gpiolib: acpi: Handle deferred list via new API gpiolib: acpi: Make sure we fill struct acpi_gpio_info gpiolib: acpi: Switch to use enum in acpi_gpio_in_ignore_list() gpiolib: acpi: Use temporary variable for struct acpi_gpio_info gpiolib: remove unneeded #ifdef gpio: mpc8xxx: select GPIOLIB_IRQCHIP gpio: pxa: select GPIOLIB_IRQCHIP gpio: pxa: Make irq_chip immutable gpio: timberdale: Make irq_chip immutable gpio: xgene-sb: Make irq_chip immutable gpio: davinci: Make irq_chip immutable ...
2025-05-27Merge tag 'timers-cleanups-2025-05-25' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer cleanups from Thomas Gleixner: "Another set of timer API cleanups: - Convert init_timer*(), try_to_del_timer_sync() and destroy_timer_on_stack() over to the canonical timer_*() namespace convention. There is another large conversion pending, which has not been included because it would have caused a gazillion of merge conflicts in next. The conversion scripts will be run towards the end of the merge window and a pull request sent once all conflict dependencies have been merged" * tag 'timers-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: treewide, timers: Rename destroy_timer_on_stack() as timer_destroy_on_stack() treewide, timers: Rename try_to_del_timer_sync() as timer_delete_sync_try() timers: Rename init_timers() as timers_init() timers: Rename NEXT_TIMER_MAX_DELTA as TIMER_NEXT_MAX_DELTA timers: Rename __init_timer_on_stack() as __timer_init_on_stack() timers: Rename __init_timer() as __timer_init() timers: Rename init_timer_on_stack_key() as timer_init_key_on_stack() timers: Rename init_timer_key() as timer_init_key()
2025-05-27Merge tag 'irq-msi-2025-05-25' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull MSI updates from Thomas Gleixner: "Updates for the MSI subsystem (core code and PCI): - Switch the MSI descriptor locking to lock guards - Replace a broken and naive implementation of PCI/MSI-X control word updates in the PCI/TPH driver with a properly serialized variant in the PCI/MSI core code. - Remove the MSI descriptor abuse in the SCCI/UFS/QCOM driver by replacing the direct access to the MSI descriptors with the proper API function calls. People will never understand that APIs exist for a reason... - Provide core infrastructre for the upcoming PCI endpoint library extensions. Currently limited to ARM GICv3+, but in theory extensible to other architectures. - Provide a MSI domain::teardown() callback, which allows drivers to undo the effects of the prepare() callback. - Move the MSI domain::prepare() callback invocation to domain creation time to avoid redundant (and in case of ARM/GIC-V3-ITS confusing) invocations on every allocation. In combination with the new teardown callback this removes some ugly hacks in the GIC-V3-ITS driver, which pretended to work around the short comings of the core code so far. With this update the code is correct by design and implementation. - Make the irqchip MSI library globally available, provide a MSI parent domain creation helper and convert a bunch of (PCI/)MSI drivers over to the modern MSI parent mechanism. This is the first step to get rid of at least one incarnation of the three PCI/MSI management schemes. - The usual small cleanups and improvements" * tag 'irq-msi-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) PCI/MSI: Use bool for MSI enable state tracking PCI: tegra: Convert to MSI parent infrastructure PCI: xgene: Convert to MSI parent infrastructure PCI: apple: Convert to MSI parent infrastructure irqchip/msi-lib: Honour the MSI_FLAG_NO_AFFINITY flag irqchip/mvebu: Convert to msi_create_parent_irq_domain() helper irqchip/gic: Convert to msi_create_parent_irq_domain() helper genirq/msi: Add helper for creating MSI-parent irq domains irqchip: Make irq-msi-lib.h globally available irqchip/gic-v3-its: Use allocation size from the prepare call genirq/msi: Engage the .msi_teardown() callback on domain removal genirq/msi: Move prepare() call to per-device allocation irqchip/gic-v3-its: Implement .msi_teardown() callback genirq/msi: Add .msi_teardown() callback as the reverse of .msi_prepare() irqchip/gic-v3-its: Add support for device tree msi-map and msi-mask dt-bindings: PCI: pci-ep: Add support for iommu-map and msi-map irqchip/gic-v3-its: Set IRQ_DOMAIN_FLAG_MSI_IMMUTABLE for ITS irqdomain: Add IRQ_DOMAIN_FLAG_MSI_IMMUTABLE and irq_domain_is_msi_immutable() platform-msi: Add msi_remove_device_irq_domain() in platform_device_msi_free_irqs_all() genirq/msi: Rename msi_[un]lock_descs() ...
2025-05-26Merge tag 'x86-core-2025-05-25' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core x86 updates from Ingo Molnar: "Boot code changes: - A large series of changes to reorganize the x86 boot code into a better isolated and easier to maintain base of PIC early startup code in arch/x86/boot/startup/, by Ard Biesheuvel. Motivation & background: | Since commit | | c88d71508e36 ("x86/boot/64: Rewrite startup_64() in C") | | dated Jun 6 2017, we have been using C code on the boot path in a way | that is not supported by the toolchain, i.e., to execute non-PIC C | code from a mapping of memory that is different from the one provided | to the linker. It should have been obvious at the time that this was a | bad idea, given the need to sprinkle fixup_pointer() calls left and | right to manipulate global variables (including non-pointer variables) | without crashing. | | This C startup code has been expanding, and in particular, the SEV-SNP | startup code has been expanding over the past couple of years, and | grown many of these warts, where the C code needs to use special | annotations or helpers to access global objects. This tree includes the first phase of this work-in-progress x86 boot code reorganization. Scalability enhancements and micro-optimizations: - Improve code-patching scalability (Eric Dumazet) - Remove MFENCEs for X86_BUG_CLFLUSH_MONITOR (Andrew Cooper) CPU features enumeration updates: - Thorough reorganization and cleanup of CPUID parsing APIs (Ahmed S. Darwish) - Fix, refactor and clean up the cacheinfo code (Ahmed S. Darwish, Thomas Gleixner) - Update CPUID bitfields to x86-cpuid-db v2.3 (Ahmed S. Darwish) Memory management changes: - Allow temporary MMs when IRQs are on (Andy Lutomirski) - Opt-in to IRQs-off activate_mm() (Andy Lutomirski) - Simplify choose_new_asid() and generate better code (Borislav Petkov) - Simplify 32-bit PAE page table handling (Dave Hansen) - Always use dynamic memory layout (Kirill A. Shutemov) - Make SPARSEMEM_VMEMMAP the only memory model (Kirill A. Shutemov) - Make 5-level paging support unconditional (Kirill A. Shutemov) - Stop prefetching current->mm->mmap_lock on page faults (Mateusz Guzik) - Predict valid_user_address() returning true (Mateusz Guzik) - Consolidate initmem_init() (Mike Rapoport) FPU support and vector computing: - Enable Intel APX support (Chang S. Bae) - Reorgnize and clean up the xstate code (Chang S. Bae) - Make task_struct::thread constant size (Ingo Molnar) - Restore fpu_thread_struct_whitelist() to fix CONFIG_HARDENED_USERCOPY=y (Kees Cook) - Simplify the switch_fpu_prepare() + switch_fpu_finish() logic (Oleg Nesterov) - Always preserve non-user xfeatures/flags in __state_perm (Sean Christopherson) Microcode loader changes: - Help users notice when running old Intel microcode (Dave Hansen) - AMD: Do not return error when microcode update is not necessary (Annie Li) - AMD: Clean the cache if update did not load microcode (Boris Ostrovsky) Code patching (alternatives) changes: - Simplify, reorganize and clean up the x86 text-patching code (Ingo Molnar) - Make smp_text_poke_batch_process() subsume smp_text_poke_batch_finish() (Nikolay Borisov) - Refactor the {,un}use_temporary_mm() code (Peter Zijlstra) Debugging support: - Add early IDT and GDT loading to debug relocate_kernel() bugs (David Woodhouse) - Print the reason for the last reset on modern AMD CPUs (Yazen Ghannam) - Add AMD Zen debugging document (Mario Limonciello) - Fix opcode map (!REX2) superscript tags (Masami Hiramatsu) - Stop decoding i64 instructions in x86-64 mode at opcode (Masami Hiramatsu) CPU bugs and bug mitigations: - Remove X86_BUG_MMIO_UNKNOWN (Borislav Petkov) - Fix SRSO reporting on Zen1/2 with SMT disabled (Borislav Petkov) - Restructure and harmonize the various CPU bug mitigation methods (David Kaplan) - Fix spectre_v2 mitigation default on Intel (Pawan Gupta) MSR API: - Large MSR code and API cleanup (Xin Li) - In-kernel MSR API type cleanups and renames (Ingo Molnar) PKEYS: - Simplify PKRU update in signal frame (Chang S. Bae) NMI handling code: - Clean up, refactor and simplify the NMI handling code (Sohil Mehta) - Improve NMI duration console printouts (Sohil Mehta) Paravirt guests interface: - Restrict PARAVIRT_XXL to 64-bit only (Kirill A. Shutemov) SEV support: - Share the sev_secrets_pa value again (Tom Lendacky) x86 platform changes: - Introduce the <asm/amd/> header namespace (Ingo Molnar) - i2c: piix4, x86/platform: Move the SB800 PIIX4 FCH definitions to <asm/amd/fch.h> (Mario Limonciello) Fixes and cleanups: - x86 assembly code cleanups and fixes (Uros Bizjak) - Misc fixes and cleanups (Andi Kleen, Andy Lutomirski, Andy Shevchenko, Ard Biesheuvel, Bagas Sanjaya, Baoquan He, Borislav Petkov, Chang S. Bae, Chao Gao, Dan Williams, Dave Hansen, David Kaplan, David Woodhouse, Eric Biggers, Ingo Molnar, Josh Poimboeuf, Juergen Gross, Malaya Kumar Rout, Mario Limonciello, Nathan Chancellor, Oleg Nesterov, Pawan Gupta, Peter Zijlstra, Shivank Garg, Sohil Mehta, Thomas Gleixner, Uros Bizjak, Xin Li)" * tag 'x86-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (331 commits) x86/bugs: Fix spectre_v2 mitigation default on Intel x86/bugs: Restructure ITS mitigation x86/xen/msr: Fix uninitialized variable 'err' x86/msr: Remove a superfluous inclusion of <asm/asm.h> x86/paravirt: Restrict PARAVIRT_XXL to 64-bit only x86/mm/64: Make 5-level paging support unconditional x86/mm/64: Make SPARSEMEM_VMEMMAP the only memory model x86/mm/64: Always use dynamic memory layout x86/bugs: Fix indentation due to ITS merge x86/cpuid: Rename hypervisor_cpuid_base()/for_each_possible_hypervisor_cpuid_base() to cpuid_base_hypervisor()/for_each_possible_cpuid_base_hypervisor() x86/cpu/intel: Rename CPUID(0x2) descriptors iterator parameter x86/cacheinfo: Rename CPUID(0x2) descriptors iterator parameter x86/cpuid: Rename cpuid_get_leaf_0x2_regs() to cpuid_leaf_0x2() x86/cpuid: Rename have_cpuid_p() to cpuid_feature() x86/cpuid: Set <asm/cpuid/api.h> as the main CPUID header x86/cpuid: Move CPUID(0x2) APIs into <cpuid/api.h> x86/msr: Add rdmsrl_on_cpu() compatibility wrapper x86/mm: Fix kernel-doc descriptions of various pgtable methods x86/asm-offsets: Export certain 'struct cpuinfo_x86' fields for 64-bit asm use too x86/boot: Defer initialization of VM space related global variables ...
2025-05-26Merge branches 'pm-runtime' and 'pm-sleep'Rafael J. Wysocki5-42/+239
Merge updates related to system sleep handling and runtime PM for 6.16-rc1: - Fix denying of auto suspend in pm_suspend_timer_fn() (Charan Teja Kalla). - Move debug runtime PM attributes to runtime_attrs[] (Rafael Wysocki). - Add new devm_ functions for enabling runtime PM and runtime PM reference counting (Bence Csókás). - Remove size arguments from strscpy() calls in the hibernation core code (Thorsten Blum). - Adjust the handling of devices with asynchronous suspend enabled during system suspend and resume to start resuming them immediately after resuming their parents and to start suspending such a device immediately after suspending its first child (