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Revert "ACPI: processor: Do not expose global variable acpi_idle_driver"

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Revert commit 559f2eacc8 ACPI: processor: Do not expose global variable
acpi_idle_driver" because it depends on a problematic one.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rafael J. Wysocki 2025-11-25 14:50:25 +01:00
parent ac3fd01e4c
commit 34fa09c698
3 changed files with 4 additions and 9 deletions
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3
drivers/acpi/processor_driver.c
View file

@ -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);

9
drivers/acpi/processor_idle.c
View file

@ -51,7 +51,7 @@ module_param(latency_factor, uint, 0644);
static DEFINE_PER_CPU(struct cpuidle_device *, acpi_cpuidle_device);
static struct cpuidle_driver acpi_idle_driver = {
struct cpuidle_driver acpi_idle_driver = {
.name = "acpi_idle",
.owner = THIS_MODULE,
};
@ -1404,13 +1404,6 @@ void acpi_processor_power_init(struct acpi_processor *pr)
{
struct cpuidle_device *dev;
/*
* The code below only works if the current cpuidle driver is the ACPI
* idle driver.
*/
if (cpuidle_get_driver() != &acpi_idle_driver)
return;
if (disabled_by_idle_boot_param())
return;

1
include/acpi/processor.h
View file

@ -417,6 +417,7 @@ static inline void acpi_processor_throttling_init(void) {}
#endif /* CONFIG_ACPI_CPU_FREQ_PSS */
/* in processor_idle.c */
extern struct cpuidle_driver acpi_idle_driver;
#ifdef CONFIG_ACPI_PROCESSOR_IDLE
void acpi_processor_power_init(struct acpi_processor *pr);
void acpi_processor_power_exit(struct acpi_processor *pr);