diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2025-11-26 10:17:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-11-26 10:17:10 -0800 |
| commit | a10d15a08f62bf97c707ef3c2a7493604c1bcc89 (patch) | |
| tree | 31f228fb71341f98fd8b46ed23461d0728840f9c /drivers/acpi/processor_driver.c | |
| parent | 30f09200cc4aefbd8385b01e41bde2e4565a6f0e (diff) | |
| parent | 43ff36c4a5a574ee83b4b0d3f3d74f09a3a8c2d3 (diff) | |
Merge tag 'acpi-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Revert a commit that attempted to make the code in the ACPI processor
driver more straightforward, but it turned out to cause the kernel to
crash on at least one system, along with some further cleanups on top
of it"
* tag 'acpi-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "ACPI: processor: idle: Optimize ACPI idle driver registration"
Revert "ACPI: processor: Remove unused empty stubs of some functions"
Revert "ACPI: processor: idle: Rearrange declarations in header file"
Revert "ACPI: processor: idle: Redefine two functions as void"
Revert "ACPI: processor: Do not expose global variable acpi_idle_driver"
Diffstat (limited to 'drivers/acpi/processor_driver.c')
| -rw-r--r-- | drivers/acpi/processor_driver.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 5d824435b26b..7644de24d2fa 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -166,7 +166,8 @@ static int __acpi_processor_start(struct acpi_device *device) if (result && !IS_ENABLED(CONFIG_ACPI_CPU_FREQ_PSS)) dev_dbg(&device->dev, "CPPC data invalid or not present\n"); - acpi_processor_power_init(pr); + if (cpuidle_get_driver() == &acpi_idle_driver) + acpi_processor_power_init(pr); acpi_pss_perf_init(pr); @@ -262,8 +263,6 @@ static int __init acpi_processor_driver_init(void) if (result < 0) return result; - acpi_processor_register_idle_driver(); - result = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "acpi/cpu-drv:online", acpi_soft_cpu_online, NULL); @@ -302,7 +301,6 @@ static void __exit acpi_processor_driver_exit(void) cpuhp_remove_state_nocalls(hp_online); cpuhp_remove_state_nocalls(CPUHP_ACPI_CPUDRV_DEAD); - acpi_processor_unregister_idle_driver(); driver_unregister(&acpi_processor_driver); } |