If CONFIG_ACPI_PROCESSOR=n and CONFIG_ACPI_PROCESSOR_IDLE=n, we may encounter some compling warnings as the following link said. The acpi_processor_register/unregister_idle_driver() would not be used when CONFIG_ACPI_PROCESSOR_IDLE is n. So remove these empty function definition. Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202508300519.tZQHY6HA-lkp@xxxxxxxxx/ Fixes: 7a8c994cbb2d ("ACPI: processor: idle: Optimize ACPI idle driver registration") Signed-off-by: Huisong Li <lihuisong@xxxxxxxxxx> --- include/acpi/processor.h | 6 ------ 1 file changed, 6 deletions(-) diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 360b673f05e5..ff864c1cee3a 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -445,12 +445,6 @@ static inline int acpi_processor_hotplug(struct acpi_processor *pr) { return -ENODEV; } -static inline void acpi_processor_register_idle_driver(void) -{ -} -static inline void acpi_processor_unregister_idle_driver(void) -{ -} #endif /* CONFIG_ACPI_PROCESSOR_IDLE */ /* in processor_thermal.c */ -- 2.33.0
