On Fri, Sep 5, 2025 at 10:19 AM Huisong Li <lihuisong@xxxxxxxxxx> wrote: > > 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 */ > -- Applied (with a rewritten changelog) as 6.18 material, thanks!