Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v7.0-rc7 2026-02-22T04:03:00+00:00 2026-02-22T04:03:00+00:00 Linus Torvalds torvalds@linux-foundation.org 2026-02-22T04:03:00+00:00 urn:sha1:32a92f8c89326985e05dce8b22d3f0aa07a3e1bd This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2026-02-22T01:09:51+00:00 Linus Torvalds torvalds@linux-foundation.org 2026-02-22T00:37:42+00:00 urn:sha1:bf4afc53b77aeaa48b5409da5c8da6bb4eff7f43 This was done entirely with mindless brute force, using git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' | xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/' to convert the new alloc_obj() users that had a simple GFP_KERNEL argument to just drop that argument. Note that due to the extreme simplicity of the scripting, any slightly more complex cases spread over multiple lines would not be triggered: they definitely exist, but this covers the vast bulk of the cases, and the resulting diff is also then easier to check automatically. For the same reason the 'flex' versions will be done as a separate conversion. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2026-02-21T09:02:28+00:00 Kees Cook kees@kernel.org 2026-02-21T07:49:23+00:00 urn:sha1:69050f8d6d075dc01af7a5f2f550a8067510366f This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org> 2026-02-18T22:28:57+00:00 Linus Torvalds torvalds@linux-foundation.org 2026-02-18T22:28:57+00:00 urn:sha1:9a199794fd789c783d34281ac1acde011a7affa8 Pull more ACPI support updates from Rafael J. Wysocki: "These are mostly fixes and cleanups on top of the ACPI support updates merged recently, including two new quirks, an ACPI CPPC library fix, and fixes and cleanups of a few core ACPI device drivers: - Add an unused power resource handling quirk for THUNDEROBOT ZERO (Zhai Can) - Fix remaining for_each_possible_cpu() in the ACPI CPPC library to use online CPUs (Sean V Kelley) - Drop redundant checks from the ACPI notify handler and the driver remove callback in the ACPI battery driver (Rafael Wysocki) - Move the creation of the wakeup source during the ACPI button driver probe to an earlier point to avoid missing a wakeup event due to a race and clean up system wakeup handling and remove callback in that driver (Rafael Wysocki) - Drop unnecessary driver_data pointer clearing from the ACPI EC and SMBUS HC drivers and make the ACPI backlight (video) driver clear the device's driver_data pointer on remove (Rafael Wysocki) - Force enabling of PWM2 on the Yogabook YB1-X90 tablets (Yauhen Kharuzhy)" * tag 'acpi-7.0-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: PM: Add unused power resource quirk for THUNDEROBOT ZERO ACPI: driver: Drop driver_data pointer clearing from two drivers ACPI: video: Clear driver_data pointer on remove ACPI: button: Tweak acpi_button_remove() ACPI: button: Tweak system wakeup handling ACPI: battery: Drop redundant checks from acpi_battery_remove() ACPI: CPPC: Fix remaining for_each_possible_cpu() to use online CPUs ACPI: x86: Force enabling of PWM2 on the Yogabook YB1-X90 ACPI: button: Call device_init_wakeup() earlier during probe ACPI: battery: Drop redundant check from acpi_battery_notify() 2026-02-12T11:43:01+00:00 Sean V Kelley skelley@nvidia.com 2026-02-11T21:22:54+00:00 urn:sha1:56eb0c0ed345da7815274aa821a8546a073d7e97 per_cpu(cpc_desc_ptr, cpu) object is initialized for only the online CPUs via acpi_soft_cpu_online() --> __acpi_processor_start() --> acpi_cppc_processor_probe(). However, send_pcc_cmd() and acpi_get_psd_map() still iterate over all possible CPUs. In acpi_get_psd_map(), encountering an offline CPU returns -EFAULT, causing cppc_cpufreq initialization to fail. This breaks systems booted with "nosmt" or "nosmt=force". Fix by using for_each_online_cpu() in both functions. Fixes: 80b8286aeec0 ("ACPI / CPPC: support for batching CPPC requests") Signed-off-by: Sean V Kelley <skelley@nvidia.com> Link: https://patch.msgid.link/20260211212254.30190-1-skelley@nvidia.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2026-02-10T03:00:42+00:00 Linus Torvalds torvalds@linux-foundation.org 2026-02-10T03:00:42+00:00 urn:sha1:9b1b3dcd28c271fc8c4a87e81860f3a34b6d29b7 Pull power management updates from Rafael Wysocki: "By the number of commits, cpufreq is the leading party (again) and the most visible change there is the removal of the omap-cpufreq driver that has not been used for a long time (good riddance). There are also quite a few changes in the cppc_cpufreq driver, mostly related to fixing its frequency invariance engine in the case when the CPPC registers used by it are not in PCC. In addition to that, support for AM62L3 is added to the ti-cpufreq driver and the cpufreq-dt-platdev list is updated for some platforms. The remaining cpufreq changes are assorted fixes and cleanups. Next up is cpuidle and the changes there are dominated by intel_idle driver updates, mostly related to the new command line facility allowing users to adjust the list of C-states used by the driver. There are also a few updates of cpuidle governors, including two menu governor fixes and some refinements of the teo governor, and a MAINTAINERS update adding Christian Loehle as a cpuidle reviewer. [Thanks for stepping up Christian!] The most significant update related to system suspend and hibernation is the one to stop freezing the PM runtime workqueue during system PM transitions which allows some deadlocks to be avoided. There is also a fix for possible concurrent bit field updates in the core device suspend code and a few other minor fixes. Apart from the above, several drivers are updated to discard the return value of pm_runtime_put() which is going to be converted to a void function as soon as everybody stops using its return value, PL4 support for Ice Lake is added to the Intel RAPL power capping driver, and there are assorted cleanups, documentation fixes, and some cpupower utility improvements. Specifics: - Remove the unused omap-cpufreq driver (Andreas Kemnade) - Optimize error handling code in cpufreq_boost_trigger_state() and make cpufreq_boost_trigger_state() return -EOPNOTSUPP if no policy supports boost (Lifeng Zheng) - Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling, Dhruva Gole, and Konrad Dybcio) - Minor improvements to the cpufreq and cpumask rust implementation (Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen) - Add support for AM62L3 SoC to the ti-cpufreq driver (Dhruva Gole) - Update arch_freq_scale in the CPPC cpufreq driver's frequency invariance engine (FIE) in scheduler ticks if the related CPPC registers are not in PCC (Jie Zhan) - Assorted minor cleanups and improvements in ARM cpufreq drivers (Juan Martinez, Felix Gu, Luca Weiss, and Sergey Shtylyov) - Add generic helpers for sysfs show/store to cppc_cpufreq (Sumit Gupta) - Make the scaling_setspeed cpufreq sysfs attribute return the actual requested frequency to avoid confusion (Pengjie Zhang) - Simplify the idle CPU time granularity test in the ondemand cpufreq governor (Frederic Weisbecker) - Enable asym capacity in intel_pstate only when CPU SMT is not possible (Yaxiong Tian) - Update the description of rate_limit_us default value in cpufreq documentation (Yaxiong Tian) - Add a command line option to adjust the C-states table in the intel_idle driver, remove the 'preferred_cstates' module parameter from it, add C-states validation to it and clean it up (Artem Bityutskiy) - Make the menu cpuidle governor always check the time till the closest timer event when the scheduler tick has been stopped to prevent it from mistakenly selecting the deepest available idle state (Rafael Wysocki) - Update the teo cpuidle governor to avoid making suboptimal decisions in certain corner cases and generally improve idle state selection accuracy (Rafael Wysocki) - Remove an unlikely() annotation on the early-return condition in menu_select() that leads to branch misprediction 100% of the time on systems with only 1 idle state enabled, like ARM64 servers (Breno Leitao) - Add Christian Loehle to MAINTAINERS as a cpuidle reviewer (Christian Loehle) - Stop flagging the PM runtime workqueue as freezable to avoid system suspend and resume deadlocks in subsystems that assume asynchronous runtime PM to work during system-wide PM transitions (Rafael Wysocki) - Drop redundant NULL pointer checks before acomp_request_free() from the hibernation code handling image saving (Rafael Wysocki) - Update wakeup_sources_walk_start() to handle empty lists of wakeup sources as appropriate (Samuel Wu) - Make dev_pm_clear_wake_irq() check the power.wakeirq value under power.lock to avoid race conditions (Gui-Dong Han) - Avoid bit field races related to power.work_in_progress in the core device suspend code (Xuewen Yan) - Make several drivers discard pm_runtime_put() return value in preparation for converting that function to a void one (Rafael Wysocki) - Add PL4 support for Ice Lake to the Intel RAPL power capping driver (Daniel Tang) - Replace sprintf() with sysfs_emit() in power capping sysfs show functions (Sumeet Pawnikar) - Make dev_pm_opp_get_level() return value match the documentation after a previous update of the latter (Aleks Todorov) - Use scoped for each OF child loop in the OPP code (Krzysztof Kozlowski) - Fix a bug in an example code snippet and correct typos in the energy model management documentation (Patrick Little) - Fix miscellaneous problems in cpupower (Kaushlendra Kumar): * idle_monitor: Fix incorrect value logged after stop * Fix inverted APERF capability check * Use strcspn() to strip trailing newline * Reset errno before strtoull() * Show C0 in idle-info dump - Improve cpupower installation procedure by making the systemd step optional and allowing users to disable the installation of systemd's unit file (João Marcos Costa)" * tag 'pm-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits) PM: sleep: core: Avoid bit field races related to work_in_progress PM: sleep: wakeirq: harden dev_pm_clear_wake_irq() against races cpufreq: Documentation: Update description of rate_limit_us default value cpufreq: intel_pstate: Enable asym capacity only when CPU SMT is not possible PM: wakeup: Handle empty list in wakeup_sources_walk_start() PM: EM: Documentation: Fix bug in example code snippet Documentation: Fix typos in energy model documentation cpuidle: governors: teo: Refine intercepts-based idle state lookup cpuidle: governors: teo: Adjust the classification of wakeup events cpufreq: ondemand: Simplify idle cputime granularity test cpufreq: userspace: make scaling_setspeed return the actual requested frequency PM: hibernate: Drop NULL pointer checks before acomp_request_free() cpufreq: CPPC: Add generic helpers for sysfs show/store cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id() cpufreq: ti-cpufreq: add support for AM62L3 SoC cpufreq: dt-platdev: Add ti,am62l3 to blocklist cpufreq/amd-pstate: Add comment explaining nominal_perf usage for performance policy cpufreq: scmi: correct SCMI explanation cpufreq: dt-platdev: Block the driver from probing on more QC platforms rust: cpumask: rename methods of Cpumask for clarity and consistency ... 2026-01-27T20:21:05+00:00 Sumit Gupta sumitg@nvidia.com 2026-01-20T14:56:17+00:00 urn:sha1:83e2908c1d425a6ef2e96457ad95b886b8ddfc48 Update EPP (Energy Performance Preference) constants for more clarity: - Add CPPC_EPP_PERFORMANCE_PREF (0x00) for performance preference. - Rename CPPC_ENERGY_PERF_MAX to CPPC_EPP_ENERGY_EFFICIENCY_PREF (0xFF) for energy efficiency. Signed-off-by: Sumit Gupta <sumitg@nvidia.com> Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com> [ rjw: Changelog edits ] Link: https://patch.msgid.link/20260120145623.2959636-4-sumitg@nvidia.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2026-01-27T13:46:28+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2026-01-27T13:46:28+00:00 urn:sha1:b753c3204d7b0e9bef956b64425709a9c40246fe Pull CPUFreq Arm updates for 7.0 from Viresh Kumar: "- Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling, Dhruva Gole, and Konrad Dybcio). - Minor improvements to the cpufreq / cpumask rust implementation (Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen). - Add support for AM62L3 SoC to ti-cpufreq driver (Dhruva Gole). - Update FIE arch_freq_scale in ticks for non-PCC regs (Jie Zhan). - Other minor cleanups / improvements (Felix Gu, Juan Martinez, Luca Weiss, and Sergey Shtylyov)." * tag 'cpufreq-arm-updates-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id() cpufreq: ti-cpufreq: add support for AM62L3 SoC cpufreq: dt-platdev: Add ti,am62l3 to blocklist cpufreq/amd-pstate: Add comment explaining nominal_perf usage for performance policy cpufreq: scmi: correct SCMI explanation cpufreq: dt-platdev: Block the driver from probing on more QC platforms rust: cpumask: rename methods of Cpumask for clarity and consistency cpufreq: CPPC: Update FIE arch_freq_scale in ticks for non-PCC regs cpufreq: CPPC: Factor out cppc_fie_kworker_init() ACPI: CPPC: Factor out and export per-cpu cppc_perf_ctrs_in_pcc_cpu() rust: cpufreq: replace `kernel::c_str!` with C-Strings cpufreq: Add Tegra186 and Tegra194 to cpufreq-dt-platdev blocklist dt-bindings: cpufreq: qcom-hw: document Milos CPUFREQ Hardware rust: cpufreq: add __rust_helper to helpers rust: cpufreq: always inline functions using build_assert with arguments 2026-01-27T05:51:23+00:00 Jie Zhan zhanjie9@hisilicon.com 2025-12-23T07:21:17+00:00 urn:sha1:f9cadb3d56912a70571fdd95f426b757557c465b Factor out cppc_perf_ctrs_in_pcc_cpu() for checking whether per-cpu CPC regs are defined in PCC channels, and export it out for further use. Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com> Reviewed-by: Pierre Gondois <pierre.gondois@arm.com> Signed-off-by: Jie Zhan <zhanjie9@hisilicon.com> Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> 2025-12-15T11:56:46+00:00 Pengjie Zhang zhangpengjie2@huawei.com 2025-12-10T13:22:27+00:00 urn:sha1:6ea3a44cef28add2d93b1ef119d84886cb1e3c9b The current implementation overlooks the 'guaranteed_perf' register in this check. If the Guaranteed Performance register is located in the PCC subspace, the function currently attempts to read it without acquiring the lock and without sending the CMD_READ doorbell to the firmware. This can result in reading stale data. Fixes: 29523f095397 ("ACPI / CPPC: Add support for guaranteed performance") Signed-off-by: Pengjie Zhang <zhangpengjie2@huawei.com> Cc: 4.20+ <stable@vger.kernel.org> # 4.20+ [ rjw: Subject and changelog edits ] Link: https://patch.msgid.link/20251210132227.1988380-1-zhangpengjie2@huawei.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>