diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 3a2e9a6..3f55d1f 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -410,7 +410,8 @@
 	return pr->throttling.acpi_processor_get_throttling(pr);
 }
 
-int acpi_processor_set_throttling_fadt(struct acpi_processor *pr, int state)
+static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,
+					      int state)
 {
 	u32 value = 0;
 	u32 duty_mask = 0;
@@ -482,7 +483,8 @@
 	return 0;
 }
 
-int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, int state)
+static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
+					     int state)
 {
 	u32 value = 0;