diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index cc64b8085c2aec9f0196dd83320b1f11db0d2afa..d53bd6fcb42877106dea1c2e8500c31f2614f15a 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -1019,7 +1019,7 @@ static void remove_siblinginfo(int cpu)
 	cpu_clear(cpu, cpu_sibling_setup_map);
 }
 
-void remove_cpu_from_maps(void)
+static void __ref remove_cpu_from_maps(void)
 {
 	int cpu = smp_processor_id();