From 64aad4749d7911f8c5e69d93a929a269605dd3cb Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Sun, 16 Feb 2025 14:26:14 +0200 Subject: [PATCH] ACPI/processor_idle: Export acpi_processor_ffh_play_dead() The kernel test robot reported the following build error: >> ERROR: modpost: "acpi_processor_ffh_play_dead" [drivers/acpi/processor.ko] undefined! Caused by this recently merged commit: 541ddf31e300 ("ACPI/processor_idle: Add FFH state handling") The build failure is due to an oversight in the 'CONFIG_ACPI_PROCESSOR=m' case, the function export is missing. Add it. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202502151207.FA9UO1iX-lkp@intel.com/ Fixes: 541ddf31e300 ("ACPI/processor_idle: Add FFH state handling") Signed-off-by: Artem Bityutskiy Signed-off-by: Ingo Molnar Cc: Dave Hansen Link: https://lore.kernel.org/r/de5bf4f116779efde315782a15146fdc77a4a044.camel@linux.intel.com --- arch/x86/kernel/acpi/cstate.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c index 5bdb65516969..86c87c01d23d 100644 --- a/arch/x86/kernel/acpi/cstate.c +++ b/arch/x86/kernel/acpi/cstate.c @@ -214,6 +214,7 @@ void acpi_processor_ffh_play_dead(struct acpi_processor_cx *cx) percpu_entry = per_cpu_ptr(cpu_cstate_entry, cpu); mwait_play_dead(percpu_entry->states[cx->index].eax); } +EXPORT_SYMBOL_GPL(acpi_processor_ffh_play_dead); void __cpuidle acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cx) {