Pull cpupower utility updates for 7.3-rc1 from Shuah Khan:

"Adds support for generic CPPC display that depends only on standardized
 fields, improving AMD specific implementation for the same.

 Removes conditional return with no effect as part of tree-wide code clean
 up effort."

* tag 'linux-cpupower-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
  cpupower: remove conditional return with no effect
  cpupower: Add libm to cpupower for generic CPPC view
  cpupower: Print kernel and hardware frequency information
  cpupower: Build and call CPPC information on non-AMD processors
  cpupower: Add generic CPPC performance display

Both branches of the check return the same value, so the check has
no effect. Remove it and return the value directly.

This is the result of running the Coccinelle script from
scripts/coccinelle/misc/cond_return_no_effect.cocci.

Link: https://lore.kernel.org/linux-pm/20260723184538.3888637-36-ekffu200098@gmail.com/raw
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

intel_pstate_tracer imports Gnuplot and numpy before parsing command-line
options. As a result, even "-h" fails if those optional runtime modules are
not installed.

Move the imports to the paths that need them. This lets the help and
invalid-argument paths describe usage without requiring plotting/data
dependencies.

While there, fix a typo in the help text and matching comments.

Signed-off-by: Yousef Alhouseen <alhouseenyousef@gmail.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20260624122747.5418-1-alhouseenyousef@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

The patch ("cpupower: Add generic CPPC performance display") uses
roundf() but didn't include libm explicitly. This results in build
breaks in environments where its not automatically inlined.

Add libm to the cpupower makefile to correct this.

Fixes: 68f34fad760b ("cpupower: Add generic CPPC performance display")
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

The kernel asserted frequency from scaling_cur_freq may not always match
the hardware reported frequency from cpuinfo_cur_freq.

Print both values when they are available, and only print the unavailable
message on x86 when the hardware frequency can't be read.

Link: https://lore.kernel.org/r/20260709221344.1919794-4-jeremy.linton@arm.com
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

Now that we have a generic CPPC printout, call it on !AMD
processors. If it fails to detect CPPC, or the registers don't look
reasonable then it will exit without printing anything.

Link: https://lore.kernel.org/r/20260709221344.1919794-3-jeremy.linton@arm.com
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

Arm64 machines, and possibly others, use the standard ACPI defined CPPC
infrastructure. cpupower has CPPC support, but it's largely written
around the intricacies of AMD processors, using platform MSRs to avoid
shortcomings in the specification.

Add a generic CPPC display that depends only on standardized fields. The
computed frequency values are best effort and rely on the FW providing
optional values that can be used to derive a meaningful frequency at a
given unique performance level.

Link: https://lore.kernel.org/r/20260709221344.1919794-2-jeremy.linton@arm.com
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

Pull x86 platform driver updates from Ilpo Järvinen:

 - amd/hfi: Add support for dynamic ranking tables (version 3)

 - amd/pmc:
     - Add PMC driver support for AMD 1Ah M80H SoC
     - Delay suspend for some Lenovo Laptops to avoid keyboard and lid
       switch problems after s2idle

 - arm64: qcom-hamoa-ec: Add Hamoa/Purwa/Glymur EC driver

 - asus-armoury: add support for G614PR, GA402NJ, GA403UM, and FX608JPR

 - asus-wmi: add keystone dongle support

 - dell-dw5826e: Add reset driver for DW5826e

 - dell-laptop: Fix rollback path

 - hp-wmi:
     - Add support for Omen 16-ap0xxx (board ID 8D26) and board ID 8B2F

 - intel-hid:
     - Add HP ProBook x360 440 G1 5 button array support
     - Prevent racing ACPI notify handlers

 - intel/pmc:
     - Add Nova Lake support
     - Rate-limit LTR scale-factor warning

 - intel-uncore-freq:
     - Expose instance ID in the sysfs
     - Fix current_freq_khz after CPU hotplug

 - intel/vsec: Restore BAR fallback for header walk

 - ISST: Restore SST-PP control to all domains

 - lenovo-wmi-*:
     - Add more CPU tunable attributes
     - Add GPU tunable attributes
     - Add WMI battery charge limiting

 - oxpec: add support for OneXPlayer Super X

 - sel3350-platform: Retain LED state on load and unload

 - surface: SAM: Add support for Surface Pro 12in

 - uniwill-laptop: Add support for battery charge modes

 - tools/power/x86/intel-speed-select: Harden daemon pidfile open

 - Major refactoring efforts:
     - ACPI driver to platform driver conversion
     - Converting drivers to use the improved WMI API

 - Miscellaneous cleanups / refactoring / improvements

* tag 'platform-drivers-x86-v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (115 commits)
  platform/x86/intel/pmc: Add NVL PCI IDs for SSRAM telemetry discovery
  platform/x86/intel/pmc/ssram: Make PMT registration optional
  platform/x86/intel/pmc/ssram: Add ACPI discovery scaffolding
  platform/x86/intel/pmc/ssram: Switch to static array with per-index probe state
  platform/x86/intel/pmc/ssram: Refactor DEVID/PWRMBASE extraction into helper
  platform/x86/intel/pmc/ssram: Add PCI platform data
  platform/x86/intel/pmc/ssram: Rename probe and PCI ID table for consistency
  platform/x86/intel/pmc: Add ACPI PWRM telemetry driver for Nova Lake S
  platform/x86/intel/pmc: Add PMC SSRAM Kconfig description
  platform/x86/intel/pmt: Unify header fetch and add ACPI source
  platform/x86/intel/pmt: Cache the telemetry discovery header
  platform/x86/intel/pmt: Pass discovery index instead of resource
  platform/x86/intel/pmt/telemetry: Move overlap check to post-decode hook
  platform/x86/intel/pmt/crashlog: Split init into pre-decode
  platform/x86/intel/pmt: Add pre/post decode hooks around header parsing
  modpost: Handle malformed WMI GUID strings
  platform/wmi: Make sysfs attributes const
  platform/wmi: Make wmi_bus_class const
  hwmon: (dell-smm) Use new buffer-based WMI API
  platform/x86: dell-ddv: Use new buffer-based WMI API
  ...

Pull power management updates from Rafael Wysocki:
 "Over a half of the changes here are cpufreq updates that include core
  modifications, fixes of the old-style governors, new hardware support
  in drivers, assorded driver fixes and cleanups, and the removal of one
  driver (AMD Elan SC4*).

  Apart from that, the intel_idle driver will now be able to avoid
  exposing redundant C-states if PC6 is disabled and there are new
  sysctl knobs for device suspend/resume watchdog timeouts, hibernation
  gets built-in LZ4 support for image compression and there is the usual
  collection of assorted fixes and cleanups.

  Specifics:

   - Fix a race between cpufreq suspend and CPU hotplug during system
     shutdown (Tianxiang Chen)

   - Avoid redundant target() calls for unchanged limits and fix a typo
     in a comment in the cpufreq core (Viresh Kumar)

   - Fix concurrency issues related to sysfs attributes access that
     affect cpufreq governors using the common governor code (Zhongqiu
     Han)

   - Simplify frequency limit handling in the conservative cpufreq
     governor (Lifeng Zheng)

   - Fix descriptions of the conservative governor freq_step tunable and
     the ondemand governor sampling_down_factor tunable in the cpufreq
     documentation (Pengjie Zhang)

   - Fix use-after-free and double free during _OSC evaluation in the
     PCC cpufreq driver (Yuho Choi)

   - Rework the handling of policy min and max frequency values in the
     cpufreq core to allow drivers to specify special initial values for
     the scaling_min_freq and scaling_max_freq sysfs attributes (Pierre
     Gondois)

   - Add cpufreq scaling support for Qualcomm Shikra SoC (Taniya Das,
     Imran Shaik).

   - Improve the warning message on HWP-disabled hybrid processors
     printed by the intel_pstate driver and sync policy->cur during CPU
     offline in it (Yohei Kojima, Fushuai Wang)

   - Drop cpufreq support for AMD Elan SC4* (Sean Young)

   - Minor fixes for cpufreq drivers (Krzysztof Kozlowski, Akashdeep
     Kaur, Hans Zhang, Guangshuo Li, Xueqin Luo)

   - Clean up dead dependencies on X86 in the cpufreq Kconfig (Julian
     Braha)

   - Allow the intel_idle driver to avoid exposing C-states that are
     redundant when PC6 is disabled (Artem Bityutskiy)

   - Fix memory leak and a potential race in the OPP core (Abdun Nihaal,
     Di Shen)

   - Mark Rust OPP methods as inline (Nicolás Antinori)

   - Fix misc device registration failure path in the PM QoS core (Yuho
     Choi)

   - Add sysctl interface for DPM watchdog timeouts (Tzung-Bi Shih)

   - Use complete() instead of complete_all() in device_pm_sleep_init()
     to avoid a false-positive warning from lockdep_assert_RT_in_threaded_ctx()
     when CONFIG_PROVE_RAW_LOCK_NESTING is enabled (Jiakai Xu)

   - Use a flexible array for CRC uncompressed buffers during
     hibernation image saving (Rosen Penev)

   - Make the LZ4 algorithm available for hibernation compression
     (l1rox3)

   - Move the preallocate_image() call during hibernation after the
     "prepare" phase of the "freeze" transition (Matthew Leach)

   - Fix a memory leak in rapl_add_package_cpuslocked() in the
     intel_rapl power capping driver and use sysfs_emit() in
     cpumask_show() in that driver (Sumeet Pawnikar, Yury Norov)

   - Fix ValueError when parsing incomplete device properties in the
     pm-graph utility (Gongwei Li)"

* tag 'pm-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm: (40 commits)
  PM: dpm_watchdog: Add sysctl interface for DPM watchdog timeouts
  PM: QoS: Fix misc device registration unwind
  cpufreq: Use policy->min/max init as QoS request
  cpufreq: Remove driver default policy->min/max init
  cpufreq: Set default policy->min/max values for all drivers
  cpufreq: Extract cpufreq_policy_init_qos() function
  cpufreq: Documentation: fix conservative governor freq_step description
  cpufreq: ti: Add EPROBE_DEFER for K3 SoCs
  cpufreq: qcom: Add cpufreq scaling support for Qualcomm Shikra SoC
  dt-bindings: cpufreq: Document Qualcomm Shikra SoC EPSS
  powercap: intel_rapl: Use sysfs_emit() in cpumask_show()
  cpufreq: governor: Fix stale prev_cpu_nice spike when enabling ignore_nice_load
  cpufreq: governor: Fix data races on per-CPU idle/nice baselines
  PM: hibernate: Use flexible array for CRC uncompressed buffers
  powercap: intel_rapl: Fix memory leak in rapl_add_package_cpuslocked()
  PM: hibernate: make LZ4 available for hibernation compression
  PM: sleep: Use complete() in device_pm_sleep_init()
  opp: rust: mark OPP methods as inline
  cpufreq: intel_pstate: Improve warning message on HWP-disabled hybrid CPUs
  cpufreq: elanfreq: Drop support for AMD Elan SC4*
  ...

Avoid symlink-based pidfile clobbering by opening the pidfile with
O_NOFOLLOW and validating it with fstat() before locking/writing.

The daemon currently uses a fixed pidfile path under /tmp. A local
unprivileged user can pre-create a symlink at that path and cause a
root-run daemon instance to write into an attacker-chosen file.

Fixes: 7fd786dfbd2c ("tools/power/x86/intel-speed-select: OOB daemon mode")
Signed-off-by: Ali Ahmet MEMIS <dev@unknownbbqr.xyz>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: stable@kernel.org