- Jan 29, 2020
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull header cleanup from Ingo Molnar: "This is a treewide cleanup, mostly (but not exclusively) with x86 impact, which breaks implicit dependencies on the asm/realtime.h header and finally removes it from asm/acpi.h" * 'core-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/ACPI/sleep: Move acpi_get_wakeup_address() into sleep.c, remove <asm/realmode.h> from <asm/acpi.h> ACPI/sleep: Convert acpi_wakeup_address into a function x86/ACPI/sleep: Remove an unnecessary include of asm/realmode.h ASoC: Intel: Skylake: Explicitly include linux/io.h for virt_to_phys() vmw_balloon: Explicitly include linux/io.h for virt_to_phys() virt: vbox: Explicitly include linux/io.h to pick up various defs efi/capsule-loader: Explicitly include linux/io.h for page_to_phys() perf/x86/intel: Explicitly include asm/io.h to use virt_to_phys() x86/kprobes: Explicitly include vmalloc.h for set_vm_flush_reset_perms() x86/ftrace: Explicitly include vmalloc.h for set_vm_flush_reset_perms() x86/boot: Explicitly include realmode.h to handle RM reservations x86/efi: Explicitly include realmode.h to handle RM trampoline quirk x86/platform/intel/quark: Explicitly include linux/io.h for virt_to_phys() x86/setup: Enhance the comments x86/setup: Clean up the header portion of setup.c
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- Jan 28, 2020
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 pti updates from Thomas Gleixner: "The performance deterioration departement provides a few non-scary fixes and improvements: - Update the cached HLE state when the TSX state is changed via the new control register. This ensures feature bit consistency. - Exclude the new Zhaoxin CPUs from Spectre V2 and SWAPGS vulnerabilities" * tag 'x86-pti-2020-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/speculation/swapgs: Exclude Zhaoxin CPUs from SWAPGS vulnerability x86/speculation/spectre_v2: Exclude Zhaoxin CPUs from SPECTRE_V2 x86/cpu: Update cached HLE state on write to TSX_CTRL_CPUID_CLEAR
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq updates from Thomas Gleixner: "The interrupt departement provides: - A mechanism to shield isolated tasks from managed interrupts: The affinity of managed interrupts is completely controlled by the kernel and user space has no influence on them. The reason is that the automatically assigned affinity correlates to the multi-queue CPU handling of block devices. If the generated affinity mask spaws both housekeeping and isolated CPUs the interrupt could be routed to an isolated CPU which would then be disturbed by I/O submitted by a housekeeping CPU. The new mechamism ensures that as long as one housekeeping CPU is online in the assigned affinity mask the interrupt is routed to a housekeeping CPU. If there is no online housekeeping CPU in the affinity mask, then the interrupt is routed to an isolated CPU to keep the device queue intact, but unless the isolated CPU submits I/O by itself these interrupts are not raised. - A small addon to the device tree irqdomain core code to avoid duplication in irq chip drivers - Conversion of the SiFive PLIC to hierarchical domains - The usual pile of new irq chip drivers: SiFive GPIO, Aspeed SCI, NXP INTMUX, Meson A1 GPIO - The first cut of support for the new ARM GICv4.1 - The usual pile of fixes and improvements in core and driver code" * tag 'irq-core-2020-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) genirq, sched/isolation: Isolate from handling managed interrupts irqchip/gic-v4.1: Allow direct invalidation of VLPIs irqchip/gic-v4.1: Suppress per-VLPI doorbell irqchip/gic-v4.1: Add VPE INVALL callback irqchip/gic-v4.1: Add VPE eviction callback irqchip/gic-v4.1: Add VPE residency callback irqchip/gic-v4.1: Add mask/unmask doorbell callbacks irqchip/gic-v4.1: Plumb skeletal VPE irqchip irqchip/gic-v4.1: Implement the v4.1 flavour of VMOVP irqchip/gic-v4.1: Don't use the VPE proxy if RVPEID is set irqchip/gic-v4.1: Implement the v4.1 flavour of VMAPP irqchip/gic-v4.1: VPE table (aka GICR_VPROPBASER) allocation irqchip/gic-v3: Add GICv4.1 VPEID size discovery irqchip/gic-v3: Detect GICv4.1 supporting RVPEID irqchip/gic-v3-its: Fix get_vlpi_map() breakage with doorbells irqdomain: Fix a memory leak in irq_domain_push_irq() irqchip: Add NXP INTMUX interrupt multiplexer support dt-bindings: interrupt-controller: Add binding for NXP INTMUX interrupt multiplexer irqchip: Define EXYNOS_IRQ_COMBINER irqchip/meson-gpio: Add support for meson a1 SoCs ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull core SMP updates from Thomas Gleixner: "A small set of SMP core code changes: - Rework the smp function call core code to avoid the allocation of an additional cpumask - Remove the not longer required GFP argument from on_each_cpu_cond() and on_each_cpu_cond_mask() and fixup the callers" * tag 'smp-core-2020-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: smp: Remove allocation mask from on_each_cpu_cond.*() smp: Add a smp_cond_func_t argument to smp_call_function_many() smp: Use smp_cond_func_t as type for the conditional function
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer updates from Thomas Gleixner: "The timekeeping and timers departement provides: - Time namespace support: If a container migrates from one host to another then it expects that clocks based on MONOTONIC and BOOTTIME are not subject to disruption. Due to different boot time and non-suspended runtime these clocks can differ significantly on two hosts, in the worst case time goes backwards which is a violation of the POSIX requirements. The time namespace addresses this problem. It allows to set offsets for clock MONOTONIC and BOOTTIME once after creation and before tasks are associated with the namespace. These offsets are taken into account by timers and timekeeping including the VDSO. Offsets for wall clock based clocks (REALTIME/TAI) are not provided by this mechanism. While in theory possible, the overhead and code complexity would be immense and not justified by the esoteric potential use cases which were discussed at Plumbers '18. The overhead for tasks in the root namespace (ie where host time offsets = 0) is in the noise and great effort was made to ensure that especially in the VDSO. If time namespace is disabled in the kernel configuration the code is compiled out. Kudos to Andrei Vagin and Dmitry Sofanov who implemented this feature and kept on for more than a year addressing review comments, finding better solutions. A pleasant experience. - Overhaul of the alarmtimer device dependency handling to ensure that the init/suspend/resume ordering is correct. - A new clocksource/event driver for Microchip PIT64 - Suspend/resume support for the Hyper-V clocksource - The usual pile of fixes, updates and improvements mostly in the driver code" * tag 'timers-core-2020-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits) alarmtimer: Make alarmtimer_get_rtcdev() a stub when CONFIG_RTC_CLASS=n alarmtimer: Use wakeup source from alarmtimer platform device alarmtimer: Make alarmtimer platform device child of RTC device alarmtimer: Update alarmtimer_get_rtcdev() docs to reflect reality hrtimer: Add missing sparse annotation for __run_timer() lib/vdso: Only read hrtimer_res when needed in __cvdso_clock_getres() MIPS: vdso: Define BUILD_VDSO32 when building a 32bit kernel clocksource/drivers/hyper-v: Set TSC clocksource as default w/ InvariantTSC clocksource/drivers/hyper-v: Untangle stimers and timesync from clocksources clocksource/drivers/timer-microchip-pit64b: Fix sparse warning clocksource/drivers/exynos_mct: Rename Exynos to lowercase clocksource/drivers/timer-ti-dm: Fix uninitialized pointer access clocksource/drivers/timer-ti-dm: Switch to platform_get_irq clocksource/drivers/timer-ti-dm: Convert to devm_platform_ioremap_resource clocksource/drivers/em_sti: Fix variable declaration in em_sti_probe clocksource/drivers/em_sti: Convert to devm_platform_ioremap_resource clocksource/drivers/bcm2835_timer: Fix memory leak of timer clocksource/drivers/cadence-ttc: Use ttc driver as platform driver clocksource/drivers/timer-microchip-pit64b: Add Microchip PIT64B support clocksource/drivers/hyper-v: Reserve PAGE_SIZE space for tsc page ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull debugobjects update from Thomas Gleixner: "A single commit for debug objects which fixes a pile of potential data races detected by KCSAN" * tag 'core-debugobjects-2020-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: debugobjects: Fix various data races
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull watchdog updates from Thomas Gleixner: "A set of watchdog/softlockup related improvements: - Enforce that the watchdog timestamp is always valid on boot. The original implementation caused a watchdog disabled gap of one second in the boot process due to truncation of the underlying sched clock. The sched clock is divided by 1e9 to convert nanoseconds to seconds. So for the first second of the boot process the result is 0 which is at the same time the indicator to disable the watchdog. The trivial fix is to change the disabled indicator to ULONG_MAX. - Two cleanup patches removing unused and redundant code which got forgotten to be cleaned up in previous changes" * tag 'core-core-2020-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: watchdog/softlockup: Enforce that timestamp is valid on boot watchdog/softlockup: Remove obsolete check of last reported task watchdog: Remove soft_lockup_hrtimer_cnt and related code
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixes from Thomas Gleixner: "Two fixes for the generic VDSO code which missed 5.5: - Make the update to the coarse timekeeper unconditional. This is required because the coarse timekeeper interfaces in the VDSO do not depend on a VDSO capable clocksource. If the system does not have a VDSO capable clocksource and the update is depending on the VDSO capable clocksource, the coarse VDSO interfaces would operate on stale data forever. - Invert the logic of __arch_update_vdso_data() to avoid further head scratching. Tripped over this several times while analyzing the update problem above" * tag 'timers-urgent-2020-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: lib/vdso: Update coarse timekeeper unconditionally lib/vdso: Make __arch_update_vdso_data() logic understandable
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinuxLinus Torvalds authored
Pull SELinux update from Paul Moore: "This is one of the bigger SELinux pull requests in recent years with 28 patches. Everything is passing our test suite and the highlights are below: - Mark CONFIG_SECURITY_SELINUX_DISABLE as deprecated. We're some time away from actually attempting to remove this in the kernel, but the only distro we know that still uses it (Fedora) is working on moving away from this so we want to at least let people know we are planning to remove it. - Reorder the SELinux hooks to help prevent bad things when SELinux is disabled at runtime. The proper fix is to remove the CONFIG_SECURITY_SELINUX_DISABLE functionality (see above) and just take care of it at boot time (e.g. "selinux=0"). - Add SELinux controls for the kernel lockdown functionality, introducing a new SELinux class/permissions: "lockdown { integrity confidentiality }". - Add a SELinux control for move_mount(2) that reuses the "file { mounton }" permission. - Improvements to the SELinux security label data store lookup functions to speed up translations between our internal label representations and the visible string labels (both directions). - Revisit a previous fix related to SELinux inode auditing and permission caching and do it correctly this time. - Fix the SELinux access decision cache to cleanup properly on error. In some extreme cases this could limit the cache size and result in a decrease in performance. - Enable SELinux per-file labeling for binderfs. - The SELinux initialized and disabled flags were wrapped with accessors to ensure they are accessed correctly. - Mark several key SELinux structures with __randomize_layout. - Changes to the LSM build configuration to only build security/lsm_audit.c when needed. - Changes to the SELinux build configuration to only build the IB object cache when CONFIG_SECURITY_INFINIBAND is enabled. - Move a number of single-caller functions into their callers. - Documentation fixes (/selinux -> /sys/fs/selinux). - A handful of cleanup patches that aren't worth mentioning on their own, the individual descriptions have plenty of detail" * tag 'selinux-pr-20200127' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: (28 commits) selinux: fix regression introduced by move_mount(2) syscall selinux: do not allocate ancillary buffer on first load selinux: remove redundant allocation and helper functions selinux: remove redundant selinux_nlmsg_perm selinux: fix wrong buffer types in policydb.c selinux: reorder hooks to make runtime disable less broken selinux: treat atomic flags more carefully selinux: make default_noexec read-only after init selinux: move ibpkeys code under CONFIG_SECURITY_INFINIBAND. selinux: remove redundant msg_msg_alloc_security Documentation,selinux: fix references to old selinuxfs mount point selinux: deprecate disabling SELinux and runtime selinux: allow per-file labelling for binderfs selinuxfs: use scnprintf to get real length for inode selinux: remove set but not used variable 'sidtab' selinux: ensure the policy has been loaded before reading the sidtab stats selinux: ensure we cleanup the internal AVC counters on error in avc_update() selinux: randomize layout of key structures selinux: clean up selinux_enabled/disabled/enforcing_boot selinux: remove unnecessary selinux cred request ...
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/auditLinus Torvalds authored
Pull audit update from Paul Moore: "One small audit patch for the Linux v5.6 merge window, and unsurprisingly it passes our test suite with flying colors" * tag 'audit-pr-20200127' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: audit: Add __rcu annotation to RCU pointer
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroupLinus Torvalds authored
Pull cgroup updates from Tejun Heo: - cgroup2 interface for hugetlb controller. I think this was the last remaining bit which was missing from cgroup2 - fixes for race and a spurious warning in threaded cgroup handling - other minor changes * 'for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: iocost: Fix iocost_monitor.py due to helper type mismatch cgroup: Prevent double killing of css when enabling threaded cgroup cgroup: fix function name in comment mm: hugetlb controller for cgroups v2
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds authored
Pull workqueue updates from Tejun Heo: "Just a couple tracepoint patches" * 'for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: remove workqueue_work event class workqueue: add worker function to workqueue_execute_end tracepoint
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git://git.infradead.org/users/hch/ioremapLinus Torvalds authored
Pull ioremap updates from Christoph Hellwig: "Remove the ioremap_nocache API (plus wrappers) that are always identical to ioremap" * tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap: remove ioremap_nocache and devm_ioremap_nocache MIPS: define ioremap_nocache to ioremap
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull libata updates from Jens Axboe: "As usual pretty quiet, mostly trivial fixes (or dead code removal), outside of various fixes for ahci_bcrm" * tag 'for-5.6/libata-2020-01-27' of git://git.kernel.dk/linux-block: ata/acard_ahci: remove unused variable n_elem ata: pata_macio: fix comparing pointer to 0 ata: ahci_brcm: BCM7216 reset is self de-asserting ata: ahci_brcm: Perform reset after obtaining resources ata: brcm: fix reset controller API usage ata: brcm: mark PM functions as __maybe_unused ata: ahci_brcm: Support BCM7216 reset controller name dt-bindings: ata: Document BCM7216 AHCI controller compatible ata: ahci_brcm: Add a shutdown callback ata: ahci_brcm: Manage reset line during suspend/resume
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block driver updates from Jens Axboe: "Like the core side, not a lot of changes here, just two main items: - Series of patches (via Coly) with fixes for bcache (Coly, Christoph) - MD pull request from Song" * tag 'for-5.6/drivers-2020-01-27' of git://git.kernel.dk/linux-block: (31 commits) bcache: reap from tail of c->btree_cache in bch_mca_scan() bcache: reap c->btree_cache_freeable from the tail in bch_mca_scan() bcache: remove member accessed from struct btree bcache: print written and keys in trace_bcache_btree_write bcache: avoid unnecessary btree nodes flushing in btree_flush_write() bcache: add code comments for state->pool in __btree_sort() lib: crc64: include <linux/crc64.h> for 'crc64_be' bcache: use read_cache_page_gfp to read the superblock bcache: store a pointer to the on-disk sb in the cache and cached_dev structures bcache: return a pointer to the on-disk sb from read_super bcache: transfer the sb_page reference to register_{bdev,cache} bcache: fix use-after-free in register_bcache() bcache: properly initialize 'path' and 'err' in register_bcache() bcache: rework error unwinding in register_bcache bcache: use a separate data structure for the on-disk super block bcache: cached_dev_free needs to put the sb page md/raid1: introduce wait_for_serialization md/raid1: use bucket based mechanism for IO serialization md: introduce a new struct for IO serialization md: don't destroy serial_info_pool if serialize_policy is true ...
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull core block updates from Jens Axboe: "This may be the most quiet round we've had in years. I'm not complaining. Really not a lot to detail here, outside of spelling and documentation improvements/fixes, we have: - Allow t10-pi to be modular (Herbert) - Remove dead code in bfq (Alex) - Mark zone management requests with REQ_SYNC (Chaitanya) - BFQ division improvement (Wen) - Small series improving plugging (Pavel)" * tag 'for-5.6/block-2020-01-27' of git://git.kernel.dk/linux-block: partitions/ldm: fix spelling mistake "to" -> "too" block, bfq: improve arithmetic division in bfq_delta() block/bfq: remove unused bfq_class_rt which never used block: mark zone-mgmt bios with REQ_SYNC blk-mq: Document functions for sending request block: Allow t10-pi to be modular blk-mq: optimise blk_mq_flush_plug_list() list: introduce list_for_each_continue() blk-mq: optimise rq sort function
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull PNP updates from Rafael Wysocki: "Get rid of unused variable and function (yu kuai)" * tag 'pnp-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PNP: isapnp: remove defined but not used function 'isapnp_checksum' PNP: isapnp: remove set but not used variable 'checksum'
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull device properties framework updates from Rafael Wysocki: "Add support for reference properties in sofrware nodes (Dmitry Torokhov) and a basic test for property entries along with fixes on top of it (Dmitry Torokhov, Qian Cai, Alan Maguire)" * tag 'devprop-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: software node: introduce CONFIG_KUNIT_DRIVER_PE_TEST usb: dwc3: use proper initializers for property entries drivers/base/test: fix global-out-of-bounds error software node: add basic tests for property entries software node: remove separate handling of references platform/x86: intel_cht_int33fe: use inline reference properties software node: implement reference properties software node: allow embedding of small arrays into property_entry software node: replace is_array with is_inline
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI updates from Rafael Wysocki: "These update the ACPICA code in the kernel to the most recent upstream revision (20200110), add new hardware support to a handful of ACPI drivers, make the ACPI fan driver expose power states information for fans, add some more quirks, fix bugs and clean up assorted things. Specifics: - Update the ACPICA code in the kernel to upstream revision 20200110 including: - Update of copyright notices to 2020 (Bob Moore). - Dispatcher fix to always generate buffer objects for the ASL create_field() operator (Maximilian Luz). - Debugger cleanup (Colin Ian King). - Disassembler change to create buffer fields in ACPI_PARSE_LOAD_PASS1 (Erik Kaneda). - UNIX line ending support for non-windows builds in acpisrc (Erik Kaneda). - Update the list of ACPICA maintainers (Rafael Wysocki). - Add Intel Tiger Lake ACPI device IDs to the ACPI DPTF, ACPI fan, int340x_thermal and intel-hid drivers (Gayatri Kammela). - Make the ACPI fan driver create additional sysfs attributes to expose power states information for fans (Srinivas Pandruvada). - Fix up the ACPI battery driver to deal with unexpected battery capacity information in a better way (Hans de Goede). - Add ACPI backlight quirks for Lenovo E41-25/45 and MSI MS-7721 boards (Aaron Ma, Hans de Goede). - Add DMI quirk for Razer Blade Stealth 13 late 2019 lid switch to the ACPI button driver (Jason Ekstrand). - Drop TIMER_DEFERRABLE from the GHES polling mode timer function flags to make it run precisely at the configured time (Bhaskar Upadhaya). - Fix race condition related to the reference counting of query handlers in the ACPI EC driver (Rafael Wysocki). - Fix ACPI tools build issue (Zhengyuan Liu). - Replace dma_request_slave_channel() with dma_request_chan() in the firmware guide documentation for ACPI (Peter Ujfalusi). - Fix typo in a comment and clean up function parameter data type inconsistencies (Kacper Piwiński, Tian Tao)" * tag 'acpi-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (25 commits) ACPICA: Update version to 20200110 ACPICA: All acpica: Update copyrights to 2020 Including tool signons. apei/ghes: Do not delay GHES polling ACPI: button: Add DMI quirk for Razer Blade Stealth 13 late 2019 lid switch ACPI: PPTT: Consistently use unsigned int as parameter type ACPI: EC: Reference count query handlers under lock ACPICA: Update the list of maintainers ACPICA: Update version to 20191213 ACPICA: Dispatcher: always generate buffer objects for ASL create_field() operator ACPICA: acpisrc: add unix line ending support for non-windows build ACPICA: Disassembler: create buffer fields in ACPI_PARSE_LOAD_PASS1 ACPICA: debugger: fix spelling mistake "adress" -> "address" ACPI: video: Do not export a non working backlight interface on MSI MS-7721 boards docs: firmware-guide: ACPI: Replace dma_request_slave_channel() with dma_request_chan() thermal: int340x_thermal: Add Tiger Lake ACPI device IDs platform/x86: intel-hid: Add Tiger Lake ACPI device ID ACPI: fan: Add Tiger Lake ACPI device ID ACPI: DPTF: Add Tiger Lake ACPI device IDs ACPI: fan: Expose fan performance state information tools/power/acpi: fix compilation error ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management updates from Rafael Wysocki: "These add ACPI support to the intel_idle driver along with an admin guide document for it, add support for CPR (Core Power Reduction) to the AVS (Adaptive Voltage Scaling) subsystem, add new hardware support in a few places, add some new sysfs attributes, debugfs files and tracepoints, fix bugs and clean up a bunch of things all over. Specifics: - Update the ACPI processor driver in order to export acpi_processor_evaluate_cst() to the code outside of it, add ACPI support to the intel_idle driver based on that and clean up that driver somewhat (Rafael Wysocki). - Add an admin guide document for the intel_idle driver (Rafael Wysocki). - Clean up cpuidle core and drivers, enable compilation testing for some of them (Benjamin Gaignard, Krzysztof Kozlowski, Rafael Wysocki, Yangtao Li). - Fix reference counting of OPP (operating performance points) table structures (Viresh Kumar). - Add support for CPR (Core Power Reduction) to the AVS (Adaptive Voltage Scaling) subsystem (Niklas Cassel, Colin Ian King, YueHaibing). - Add support for TigerLake Mobile and JasperLake to the Intel RAPL power capping driver (Zhang Rui). - Update cpufreq drivers: - Add i.MX8MP support to imx-cpufreq-dt (Anson Huang). - Fix usage of a macro in loongson2_cpufreq (Alexandre Oliva). - Fix cpufreq policy reference counting issues in s3c and brcmstb-avs (chenqiwu). - Fix ACPI table reference counting issue and HiSilicon quirk handling in the CPPC driver (Hanjun Guo). - Clean up spelling mistake in intel_pstate (Harry Pan). - Convert the kirkwood and tegra186 drivers to using devm_platform_ioremap_resource() (Yangtao Li). - Update devfreq core: - Add 'name' sysfs attribute for devfreq devices (Chanwoo Choi). - Clean up the handing of transition statistics and allow them to be reset by writing 0 to the 'trans_stat' devfreq device attribute in sysfs (Kamil Konieczny). - Add 'devfreq_summary' to debugfs (Chanwoo Choi). - Clean up kerneldoc comments and Kconfig indentation (Krzysztof Kozlowski, Randy Dunlap). - Update devfreq drivers: - Add dynamic scaling for the imx8m DDR controller and clean up imx8m-ddrc (Leonard Crestez, YueHaibing). - Fix DT node reference counting and nitialization error code path in rk3399_dmc and add COMPILE_TEST and HAVE_ARM_SMCCC dependency for it (Chanwoo Choi, Yangtao Li). - Fix DT node reference counting in rockchip-dfi and make it use devm_platform_ioremap_resource() (Yangtao Li). - Fix excessive stack usage in exynos-ppmu (Arnd Bergmann). - Fix initialization error code paths in exynos-bus (Yangtao Li). - Clean up exynos-bus and exynos somewhat (Artur Świgoń, Krzysztof Kozlowski). - Add tracepoints for tracking usage_count updates unrelated to status changes in PM-runtime (Michał Mirosław). - Add sysfs attribute to control the "sync on suspend" behavior during system-wide suspend (Jonas Meurer). - Switch system-wide suspend tests over to 64-bit time (Alexandre Belloni). - Make wakeup sources statistics in debugfs cover deleted ones which used to be the case some time ago (zhuguangqing). - Clean up computations carried out during hibernation, update messages related to hibernation and fix a spelling mistake in one of them (Wen Yang, Luigi Semenzato, Colin Ian King). - Add mailmap entry for maintainer e-mail address that has not been functional for several years (Rafael Wysocki)" * tag 'pm-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (83 commits) cpufreq: loongson2_cpufreq: adjust cpufreq uses of LOONGSON_CHIPCFG intel_idle: Clean up irtl_2_usec() intel_idle: Move 3 functions closer to their callers intel_idle: Annotate initialization code and data structures intel_idle: Move and clean up intel_idle_cpuidle_devices_uninit() intel_idle: Rearrange intel_idle_cpuidle_driver_init() intel_idle: Clean up NULL pointer check in intel_idle_init() intel_idle: Fold intel_idle_probe() into intel_idle_init() intel_idle: Eliminate __setup_broadcast_timer() cpuidle: fix cpuidle_find_deepest_state() kerneldoc warnings cpuidle: sysfs: fix warnings when compiling with W=1 cpuidle: coupled: fix warnings when compiling with W=1 cpufreq: brcmstb-avs: fix imbalance of cpufreq policy refcount PM: suspend: Add sysfs attribute to control the "sync on suspend" behavior PM / devfreq: Add debugfs support with devfreq_summary file Documentation: admin-guide: PM: Add intel_idle document cpuidle: arm: Enable compile testing for some of drivers PM-runtime: add tracepoints for usage_count changes cpufreq: intel_pstate: fix spelling mistake: "Whethet" -> "Whether" PM: hibernate: fix spelling mistake "shapshot" -> "snapshot" ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulatorLinus Torvalds authored
Pull regulator updates from Mark Brown: "Hardly anything going on in the core this time around with the regulator API and pretty quiet on the driver front: - An API for comparing regulators, useful for devices that need to check if supply voltages exactly match rather than just nominally match. - Conversion of several DT bindings to YAML format. - Conversion of I2C drivers to probe_new(). - New drivers for Monolithic MPQ7920 and MP8859, and Rohm BD71828" * tag 'regulator-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (34 commits) dt-bindings: regulator: add document bindings for mpq7920 regulator: core: Fix exported symbols to the exported GPL version regulator: mpq7920: Fix incorrect defines regulator: vqmmc-ipq4019: Fix platform_no_drv_owner.cocci warnings regulator: vctrl-regulator: Avoid deadlock getting and setting the voltage regulator fix for "regulator: core: Add regulator_is_equal() helper" regulator: core: Add regulator_is_equal() helper regulator: mpq7920: Convert to use .probe_new regulator: mpq7920: Remove unneeded fields from struct mpq7920_regulator_info regulator: vqmmc-ipq4019: Trivial clean up regulator: vqmmc-ipq4019: Remove ipq4019_regulator_remove regulator: bindings: Drop document bindings for mpq7920 dt-bindings: Drop entry for Monolithic Power System, MPS regulator: bd718x7: Simplify the code by removing struct bd718xx_pmic_inits regulator: add IPQ4019 SDHCI VQMMC LDO driver regulator: Convert i2c drivers to use .probe_new regulator: mpq7920: Check the correct variable in mpq7920_regulator_register() regulator: mpq7920: Fix Woverflow warning on conversion regulator: mp8859: tidy up white space in probe regulator: mpq7920: add mpq7920 regulator driver ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds authored
Pull spi updates from Mark Brown: "Not much going on in the core for SPI this time but a reasonable amount of change in the drivers: - Removal of dmal_request_slave_channel() from Peter Ujfalusi. - More conversions of drivers to GPIO descriptors from Linus Walleij. - A big rework of the sh-msiof driver from Geert Uytterhoeven moving it over to the generic native chipselect support. - DMA support for the uniphier driver from Kunihiko Hayashi. - New driver support for HiSilcon v3xx SPI NOR controllers from John Garry" * tag 'spi-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (52 commits) dt-binding: spi: add NPCM PSPI reset binding spi: pxa2xx: Avoid touching SSCR0_SSE on MMP2 spi: spi-fsl-qspi: Ensure width is respected in spi-mem operations spi: npcm-pspi: modify reset support spi: npcm-pspi: improve spi transfer performance spi: spi-ti-qspi: fix warning spi: npcm-pspi: fix 16 bit send and receive support spi: pxa2xx: Add support for Intel Comet Lake PCH-V spi: fsl: simplify error path in of_fsl_spi_probe() spi: fsl-lpspi: fix only one cs-gpio working spi: spi-ti-qspi: optimize byte-transfers spi: spi-ti-qspi: support large flash devices spi: spi-qcom-qspi: Use device managed memory for clk_bulk_data MAINTAINERS: Add a maintainer for the HiSilicon v3xx SFC driver spi: Add HiSilicon v3xx SPI NOR flash controller driver dt-bindings: spi_atmel: add microchip,sam9x60-spi spi: bcm2835: Raise maximum number of slaves to 4 spi: sh-msiof: Do not redefine STR while compile testing spi: rspi: Add support for GPIO chip selects spi: rspi: Add support for multiple native chip selects ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmapLinus Torvalds authored
Pull regmap updates from Mark Brown: "This is quite a busy release for a subsystem that's usually very quiet, though still a small set of updates in the grand scheme of things: - A fix for writes to non-incrementing registers. - An iopoll() style helper for use with atomic safe regmaps, making it easier to transition from raw memory mapped I/O. - Some constification" * tag 'regmap-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: fix writes to non incrementing registers regmap: add iopoll-like atomic polling macro regmap-i2c: constify regmap_bus structures
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git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds authored
Pull dmaengine updates from Vinod Koul: "This time we have a bunch of core changes to support dynamic channels, hotplug of controllers, new apis for metadata ops etc along with new drivers for Intel data accelerators, TI K3 UDMA, PLX DMA engine and hisilicon Kunpeng DMA engine. Also usual assorted updates to drivers. Core: - Support for dynamic channels - Removal of various slave wrappers - Make few slave request APIs as private to dmaengine - Symlinks between channels and slaves - Support for hotplug of controllers - Support for metadata_ops for dma_async_tx_descriptor - Reporting DMA cached data amount - Virtual dma channel locking updates New drivers/device/feature support support: - Driver for Intel data accelerators - Driver for TI K3 UDMA - Driver for PLX DMA engine - Driver for hisilicon Kunpeng DMA engine - Support for eDMA support for QorIQ LS1028A in fsl edma driver - Support for cyclic dma in sun4i driver - Support for X1830 in JZ4780 driver" * tag 'dmaengine-5.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (62 commits) dmaengine: Create symlinks between DMA channels and slaves dmaengine: hisilicon: Add Kunpeng DMA engine support dmaengine: idxd: add char driver to expose submission portal to userland dmaengine: idxd: connect idxd to dmaengine subsystem dmaengine: idxd: add descriptor manipulation routines dmaengine: idxd: add sysfs ABI for idxd driver dmaengine: idxd: add configuration component of driver dmaengine: idxd: Init and probe for Intel data accelerators dmaengine: add support to dynamic register/unregister of channels dmaengine: break out channel registration x86/asm: add iosubmit_cmds512() based on MOVDIR64B CPU instruction dmaengine: ti: k3-udma: fix spelling mistake "limted" -> "limited" dmaengine: s3c24xx-dma: fix spelling mistake "to" -> "too" dmaengine: Move dma_get_{,any_}slave_channel() to private dmaengine.h dmaengine: Remove dma_request_slave_channel_compat() wrapper dmaengine: Remove dma_device_satisfies_mask() wrapper dt-bindings: fsl-imx-sdma: Add i.MX8MM/i.MX8MN/i.MX8MP compatible string dmaengine: zynqmp_dma: fix burst length configuration dmaengine: sun4i: Add support for cyclic requests with dedicated DMA dmaengine: fsl-qdma: fix duplicated argument to && ...
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git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatchingLinus Torvalds authored
Pull livepatching updates from Jiri Kosina: "Fixes for selftests and samples for 'shadow variables' livepatching feature, from Petr Mladek" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: livepatch: Handle allocation failure in the sample of shadow variable API livepatch/samples/selftest: Use klp_shadow_alloc() API correctly livepatch/selftest: Clean up shadow variable names and type livepatch/sample: Use the right type for the leaking data pointer
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hidLinus Torvalds authored
Pull HID updates from Jiri Kosina: "This time it's surprisingly quiet (probably due to the christmas break): - Logitech HID++ protocol improvements from Mazin Rezk, Pedro Vanzella and Adrian Freund - support for hidraw uniq ioctl from Marcel Holtmann" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: HID: logitech-hidpp: avoid duplicate error handling code in 'hidpp_probe()' hid-logitech-hidpp: read battery voltage from newer devices HID: logitech: Add MX Master 3 Mouse HID: logitech-hidpp: Support WirelessDeviceStatus connect events HID: logitech-hidpp: Support translations from short to long reports HID: hidraw: add support uniq ioctl
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git://git.infradead.org/linux-platform-drivers-x86Linus Torvalds authored
Pull x86 platform driver updates from Andy Shevchenko: - Enable thermal policy for ASUS TUF FX705DY/FX505DY - Support left round button on ASUS N56VB - Support new Mellanox platforms of basic class VMOD0009 and VMOD0010 - Intel Comet Lake, Tiger Lake and Elkhart Lake support in the PMC driver - Big clean-up to Intel PMC core, PMC IPC and SCU IPC drivers - Touchscreen support for the PiPO W11 tablet * tag 'platform-drivers-x86-v5.6-1' of git://git.infradead.org/linux-platform-drivers-x86: (64 commits) platform/x86: intel_pmc_ipc: Switch to use driver->dev_groups platform/x86: intel_pmc_ipc: Propagate error from kstrtoul() platform/x86: intel_pmc_ipc: Use octal permissions in sysfs attributes platform/x86: intel_pmc_ipc: Get rid of unnecessary includes platform/x86: intel_pmc_ipc: Drop ipc_data_readb() platform/x86: intel_pmc_ipc: Drop intel_pmc_gcr_read() and intel_pmc_gcr_write() platform/x86: intel_pmc_ipc: Make intel_pmc_ipc_raw_cmd() static platform/x86: intel_pmc_ipc: Make intel_pmc_ipc_simple_command() static platform/x86: intel_pmc_ipc: Make intel_pmc_gcr_update() static platform/x86: intel_scu_ipc: Reformat kernel-doc comments of exported functions platform/x86: intel_scu_ipc: Drop intel_scu_ipc_raw_command() platform/x86: intel_scu_ipc: Drop intel_scu_ipc_io[read|write][8|16]() platform/x86: intel_scu_ipc: Drop unused macros platform/x86: intel_scu_ipc: Drop unused prototype intel_scu_ipc_fw_update() platform/x86: intel_scu_ipc: Sleeping is fine when polling platform/x86: intel_scu_ipc: Drop intel_scu_ipc_i2c_cntrl() platform/x86: intel_scu_ipc: Remove Lincroft support platform/x86: intel_scu_ipc: Add constants for register offsets platform/x86: intel_scu_ipc: Fix interrupt support platform/x86: intel_scu_ipcutil: Remove default y from Kconfig ...
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds authored
Pull MMC updates from Ulf Hansson: "There are no updates for the MEMSTICK subsystem this time. But note that I am also carrying a patch from the pinctrl tree, which has been shared through an immutable branch. Summary: MMC core: - Convert to reasonable timeouts for all CMD6 commands (updates for BKOPS, CACHE_FLUSH and INAND_CMD38_ARG_EXT_CSD) for eMMC - Respect f_max clock rate at card initialization - Add gpiod_toggle_active_low() API - Consolidate slot-gpio code by using gpiod_toggle_active_low() MMC host: - Add pinctrl_select_default_state() API - Consolidate pintctrl code by using pinctrl_select_default_state() - mmci: Support any block sizes for SDIO for some variants - mmci: Enable reset control for stm32_sdmmc - mmc_spi: Toggle SPI_CS_HIGH polarity rather than hard-coding it - renesas_sdhi: Add support for the r8a77961 variant - renesas_sdhi: A few minor improvements - rockchip-dw-mshc: Add support for the rk3308 variant - sdhci: Enable support for external DMA controllers - sdhci: Fixup error path when sending CMD12 - sdhci-brcmstb: Add support for 7216b0 variant - sdhci-brcmstb: Add support for command queuing (CQHCI) - sdhci-brcmstb: Add support for eMMC HS400ES mode - sdhci-msm: Add support for the sc7180 variant - sdhci-msm: Add support for command queuing (CQHCI) - sdhci-of-at91: Add support for the SAM9x60 variant - sdhci-of-at91: Improve support for tunings - sdhci-of-esdhc: A few fixups for some clock related issues - sdhci-omap: Add support for the am335x and the am437x variants - sdhci-omap: Improve support for erase operations - sdhci-omap: Add support for external DMA" * tag 'mmc-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (89 commits) mmc: core: Default to generic_cmd6_time as timeout in __mmc_switch() mmc: block: Use generic_cmd6_time when modifying INAND_CMD38_ARG_EXT_CSD mmc: core: Specify timeouts for BKOPS and CACHE_FLUSH for eMMC mmc: sdhci-cadence: remove unneeded 'inline' marker dt-bindings: mmc: rockchip-dw-mshc: add description for rk3308 dt-bindings: mmc: convert rockchip dw-mshc bindings to yaml dt-bindings: mmc: convert synopsys dw-mshc bindings to yaml mmc: sdhci-msm: Add CQHCI support for sdhci-msm mmc: sdhci: Let a vendor driver supply and update ADMA descriptor size mmc: sdhci-of-esdhc: fix serious issue clock is always disabled mmc: sdhci-of-esdhc: fix transfer mode register reading mmc: sdhci-brcmstb: Fix incorrect switch to HS mode mmc: sdhci-brcmstb: Add support for Command Queuing (CQE) mmc: sdhci-brcmstb: Add shutdown callback mmc: sdhci-brcmstb: Fix driver to defer on clk_get defer mmc: sdhci-brcmstb: Add ability to use HS400ES transfer mode dt-bindings: mmc: brcm,sdhci-brcmstb: Add support for 7216b0 mmc: core: limit probe clock frequency to configured f_max mmc: sdhci-milbeaut: Remove redundant platform_get_irq error message mmc: sdhci: fix an issue of mixing different types ...
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git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxLinus Torvalds authored
Pull i3c updates from Boris Brezillon: "Core changes: - Make i3c_bus_set_mode() static Driver changes: - Add a per-SoC data_hold_delay property to the Cadence driver - Fix formatting issues in the 'CADENCE I3C MASTER IP' MAINTAINERS entry - Use devm_platform_ioremap_resource() where appropriate - Adjust DesignWare reattach logic" * tag 'i3c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: master: dw: reattach device on first available location of address table i3c: master: cdns: convert to devm_platform_ioremap_resource i3c: master: dw: convert to devm_platform_ioremap_resource MAINTAINERS: fix style in CADENCE I3C MASTER IP entry i3c: master: make i3c_bus_set_mode static i3c: master: cdns: add data hold delay support
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 microcode update from Borislav Petkov: "Another boring branch this time around: mark a stub function inline, by Valdis Kletnieks" * 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode/AMD: Make stub function static inline
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Mark Brown authored
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Saravanan Sekar authored
Add device tree binding information for mpq7920 regulator driver. Example bindings for mpq7920 are added. Signed-off-by:
Saravanan Sekar <sravanhome@gmail.com> Reviewed-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200123215338.11109-1-sravanhome@gmail.com Signed-off-by:
Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RAS updates from Borislav Petkov: - Misc fixes to the MCE code all over the place, by Jan H. Schönherr. - Initial support for AMD F19h and other cleanups to amd64_edac, by Yazen Ghannam. - Other small cleanups. * 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: EDAC/mce_amd: Make fam_ops static global EDAC/amd64: Drop some family checks for newer systems EDAC/amd64: Add family ops for Family 19h Models 00h-0Fh x86/amd_nb: Add Family 19h PCI IDs EDAC/mce_amd: Always load on SMCA systems x86/MCE/AMD, EDAC/mce_amd: Add new Load Store unit McaType x86/mce: Fix use of uninitialized MCE message string x86/mce: Fix mce=nobootlog x86/mce: Take action on UCNA/Deferred errors again x86/mce: Remove mce_inject_log() in favor of mce_log() x86/mce: Pass MCE message to mce_panic() on failed kernel recovery x86/mce/therm_throt: Mark throttle_active_work() as __maybe_unused
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git://git.kernel.org/pub/scm/linux/kernel/git/ras/rasLinus Torvalds authored
Pull EDAC updates from Borislav Petkov: "A totally boring branch this time around: a garden variety of small fixes all over the place" * tag 'edac_for_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: EDAC/amd64: Do not warn when removing instances EDAC/sifive: Fix return value check in ecc_register() EDAC/aspeed: Remove unneeded semicolon EDAC: remove set but not used variable 'ecc_loc' EDAC: skx_common: downgrade message importance on missing PCI device EDAC/Kconfig: Fix Kconfig indentation
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-stagingLinus Torvalds authored
Pull hwmon updates from Guenter Roeck: "core: - Add support for enable attributes to hwmon core - Add intrusion templates pmbus: - Support for Infineon Multi-phase xdpe122 family controllers - Support for Intel IMVP9 and AMD 6.25mV modes - Support for vid mode detection per page bases - Detect if chip is write protected - Support for MAX20730, MAX20734, MAX20743, MAX20796, UCD90320, TPS53688 - Various improvements to ibm-cffps driver k10temp: - Support for additional temperature sensors as well as voltage and current telemetry for Zen CPUs w83627ehf: - Remove support for NCT6775, NCT6776 (they have their own driver) New drivers: - ADM1177 - MAX31730 - Driver for disk and solid state drives with temperature sensors Other: - pwm-fan: stop fan on shutdown" * tag 'hwmon-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (35 commits) hwmon: (k10temp) Display up to eight sets of CCD temperatures hwmon: (k10temp) Add debugfs support hwmon: (k10temp) Don't show temperature limits on Ryzen (Zen) CPUs hwmon: (k10temp) Show core and SoC current and voltages on Ryzen CPUs hwmon: (k10temp) Report temperatures per CPU die hmon: (k10temp) Convert to use devm_hwmon_device_register_with_info hwmon: (k10temp) Use bitops hwmon: (pwm-fan) stop fan on shutdown MAINTAINERS: add entry for ADM1177 driver dt-binding: hwmon: Add documentation for ADM1177 hwmon: (adm1177) Add ADM1177 Hot Swap Controller and Digital Power Monitor driver docs: hwmon: Include 'xdpe12284.rst' into docs hwmon: (pmbus) Add support for Infineon Multi-phase xdpe122 family controllers hwmon: (pmbus/tps53679) Extend device list supported by driver hwmon: (pmbus/core) Add support for Intel IMVP9 and AMD 6.25mV modes hwmon: (pmbus/core) Add support for vid mode detection per page bases hwmon: (pmbus/ibm-cffps) Prevent writing on_off_config with bad data hwmon: (w83627ehf) Remove set but not used variable 'fan4min' hwmon: Driver for disk and solid state drives with temperature sensors hwmon: (pmbus/ibm-cffps) Fix the LED behavior when turned off ...
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git://git.infradead.org/users/jjs/linux-tpmddLinus Torvalds authored
Pull tpm updates from Jarkko Sakkinen: "This adds a new sysfs file for querying TPM major version, which can be used by the user space the TPM protocol used to communicate with the chip" * tag 'tpmdd-next-20200122' of git://git.infradead.org/users/jjs/linux-tpmdd: tpm: Add tpm_version_major sysfs file tpm: Update mailing list contact information in sysfs-class-tpm
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68kLinus Torvalds authored
Pull m68k updates from Geert Uytterhoeven: - wire up clone3() syscall - defconfig updates * tag 'm68k-for-v5.6-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Implement copy_thread_tls() m68k: defconfig: Update defconfigs for v5.5-rc3 m68k: Wire up clone3() syscall
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 updates from Will Deacon: "The changes are a real mixed bag this time around. The only scary looking one from the diffstat is the uapi change to asm-generic/mman-common.h, but this has been acked by Arnd and is actually just adding a pair of comments in an attempt to prevent allocation of some PROT values which tend to get used for arch-specific purposes. We'll be using them for Branch Target Identification (a CFI-like hardening feature), which is currently under review on the mailing list. New architecture features: - Support for Armv8.5 E0PD, which benefits KASLR in the same way as KPTI but without the overhead. This allows KPTI to be disabled on CPUs that are not affected by Meltdown, even is KASLR is enabled. - Initial support for the Armv8.5 RNG instructions, which claim to provide access to a high bandwidth, cryptographically secure hardware random number generator. As well as exposing these to userspace, we also use them as part of the KASLR seed and to seed the crng once all CPUs have come online. - Advertise a bunch of new instructions to userspace, including support for Data Gathering Hint, Matrix Multiply and 16-bit floating point. Kexec: - Cleanups in preparation for relocating with the MMU enabled - Support for loading crash dump kernels with kexec_file_load() Perf and PMU drivers: - Cleanups and non-critical fixes for a couple of system PMU drivers FPU-less (aka broken) CPU support: - Considerable fixes to support CPUs without the FP/SIMD extensions, including their presence in heterogeneous systems. Good luck finding a 64-bit userspace that handles this. Modern assembly function annotations: - Start migrating our use of ENTRY() and ENDPROC() over to the new-fangled SYM_{CODE,FUNC}_{START,END} macros, which are intended to aid debuggers Kbuild: - Cleanup detection of LSE support in the assembler by introducing 'as-instr' - Remove compressed Image files when building clean targets IP checksumming: - Implement optimised IPv4 checksumming routine when hardware offload is not in use. An IPv6 version is in the works, pending testing. Hardware errata: - Work around Cortex-A55 erratum #1530923 Shadow call stack: - Work around some issues with Clang's integrated assembler not liking our perfectly reasonable assembly code - Avoid allocating the X18 register, so that it can be used to hold the shadow call stack pointer in future ACPI: - Fix ID count checking in IORT code. This may regress broken firmware that happened to work with the old implementation, in which case we'll have to revert it and try something else - Fix DAIF corruption on return from GHES handler with pseudo-NMIs Miscellaneous: - Whitelist some CPUs that are unaffected by Spectre-v2 - Reduce frequency of ASID rollover when KPTI is compiled in but inactive - Reserve a couple of arch-specific PROT flags that are already used by Sparc and PowerPC and are planned for later use with BTI on arm64 - Preparatory cleanup of our entry assembly code in preparation for moving more of it into C later on - Refactoring and cleanup" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (73 commits) arm64: acpi: fix DAIF manipulation with pNMI arm64: kconfig: Fix alignment of E0PD help text arm64: Use v8.5-RNG entropy for KASLR seed arm64: Implement archrandom.h for ARMv8.5-RNG arm64: kbuild: remove compressed images on 'make ARCH=arm64 (dist)clean' arm64: entry: Avoid empty alternatives entries arm64: Kconfig: select HAVE_FUTEX_CMPXCHG arm64: csum: Fix pathological zero-length calls arm64: entry: cleanup sp_el0 manipulation arm64: entry: cleanup el0 svc handler naming arm64: entry: mark all entry code as notrace arm64: assembler: remove smp_dmb macro arm64: assembler: remove inherit_daif macro ACPI/IORT: Fix 'Number of IDs' handling in iort_id_map() mm: Reserve asm-generic prot flags 0x10 and 0x20 for arch use arm64: Use macros instead of hard-coded constants for MAIR_EL1 arm64: Add KRYO{3,4}XX CPU cores to spectre-v2 safe list arm64: kernel: avoid x18 in __cpu_soft_restart arm64: kvm: stop treating register x18 as caller save arm64/lib: copy_page: avoid x18 register in assembler code ...
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- Jan 27, 2020
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Jiri Kosina authored
- voltage support for newer Logitech HID++ devices, from Pedro Vanzella. - MX Master support improvements, from Adrian Freund and Mazin Rezk
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Jiri Kosina authored
- support for uniq ioctl()
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