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Message-ID: <CAJZ5v0g5C_Zk5-PxsO+W-ef=1oDgbb-PCMYq8UmE9uPi9bASvg@mail.gmail.com>
Date: Fri, 30 May 2025 20:49:57 +0200
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Linux PM <linux-pm@...r.kernel.org>, 
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, "the arch/x86 maintainers" <x86@...nel.org>, 
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: [GIT PULL] More power management updates for v6.16-rc1

Hi Linus,

Please pull from the tag

 git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
 pm-6.16-rc1-2

with top-most commit 3d031d0d8daab86f9c3e9e89c80fec08367fb304

 Merge branch 'pm-cpuidle'

on top of commit 9d230d500b0e5f7be863e2bf2386be5f80dd18aa

 Merge tag 'driver-core-6.16-rc1' of
git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

to receive more power management updates for 6.16-rc1.

These revert an x86 commit that introduced a nasty power regression
on some systems, fix PSCI cpuidle driver and ACPI cpufreq driver
regressions, add Rust abstractions for cpufreq, OPP, clk, and
cpumasks, add a Rust-based cpufreq-dt driver, and do a minor
SCMI cpufreq driver cleanup:

 - Revert an x86 commit that went into 6.15 and caused idle power,
   including power in suspend-to-idle, to rise rather dramatically
   on systems booting with "nosmt" in the kernel command line (Rafael
   Wysocki).

 - Prevent freeing an uninitialized pointer in the error path of
   dt_idle_state_present() in the PSCI cpuidle driver (Dan Carpenter).

 - Use KHz as the nominal_freq units in get_max_boost_ratio() in the
   ACPI cpufreq driver (iGautham Shenoy).

 - Add Rust abstractions for CPUFreq framework (Viresh Kumar).

 - Add Rust abstractions for OPP framework (Viresh Kumar).

 - Add basic Rust abstractions for Clk and Cpumask frameworks (Viresh
   Kumar).

 - Clean up the SCMI cpufreq driver somewhat (Mike Tipton).

Thanks!


---------------

Anisse Astier (1):
      rust: macros: enable use of hyphens in module names

Dan Carpenter (1):
      cpuidle: psci: Fix uninitialized variable in dt_idle_state_present()

Gautham R. Shenoy (1):
      acpi-cpufreq: Fix nominal_freq units to KHz in get_max_boost_ratio()

Mike Tipton (1):
      cpufreq: scmi: Skip SCMI devices that aren't used by the CPUs

Rafael J. Wysocki (1):
      Revert "x86/smp: Eliminate mwait_play_dead_cpuid_hint()"

Viresh Kumar (16):
      rust: cpumask: Add few more helpers
      rust: cpumask: Add initial abstractions
      MAINTAINERS: Add entry for Rust cpumask API
      rust: clk: Add helpers for Rust code
      rust: clk: Add initial abstractions
      rust: cpu: Add from_cpu()
      rust: opp: Add initial abstractions for OPP framework
      rust: opp: Add abstractions for the OPP table
      rust: opp: Add abstractions for the configuration options
      rust: cpufreq: Add initial abstractions for cpufreq framework
      rust: cpufreq: Extend abstractions for policy and driver ops
      rust: cpufreq: Extend abstractions for driver registration
      rust: opp: Extend OPP abstractions with cpufreq support
      cpufreq: Add Rust-based cpufreq-dt driver
      rust: opp: Make the doctest example depend on CONFIG_OF
      rust: opp: Move `cfg(CONFIG_OF)` attribute to the top of doc test

---------------

 MAINTAINERS                     |   11 +
 arch/x86/kernel/smpboot.c       |   54 +-
 drivers/cpufreq/Kconfig         |   12 +
 drivers/cpufreq/Makefile        |    1 +
 drivers/cpufreq/acpi-cpufreq.c  |    2 +-
 drivers/cpufreq/rcpufreq_dt.rs  |  226 +++++++
 drivers/cpufreq/scmi-cpufreq.c  |   36 +-
 drivers/cpuidle/cpuidle-psci.c  |    9 +-
 rust/bindings/bindings_helper.h |    4 +
 rust/helpers/clk.c              |   66 ++
 rust/helpers/cpufreq.c          |   10 +
 rust/helpers/cpumask.c          |   25 +
 rust/helpers/helpers.c          |    2 +
 rust/kernel/clk.rs              |  334 ++++++++++
 rust/kernel/cpu.rs              |   30 +
 rust/kernel/cpufreq.rs          | 1321 +++++++++++++++++++++++++++++++++++++++
 rust/kernel/cpumask.rs          |  330 ++++++++++
 rust/kernel/lib.rs              |    7 +
 rust/kernel/opp.rs              | 1146 +++++++++++++++++++++++++++++++++
 rust/macros/module.rs           |   20 +-
 20 files changed, 3624 insertions(+), 22 deletions(-)

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