diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 9ee2bc30d530baccf984a1e8b85020f7b6074780..c9b7f44ea4978d20b65ef38fb10d1b6027daa262 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -530,7 +530,7 @@ static int nearby_node(int apicid)
  * On a AMD dual core setup the lower bits of the APIC id distingush the cores.
  * Assumes number of cores is a power of two.
  */
-static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
+static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
 	unsigned bits;