diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 8c2857cbd96097b25a3105ad533df080b50f534a..7d6cf75a7fd80188372056e71aea1d88c6f070e8 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -919,7 +919,7 @@ static struct sched_domain_topology_level powerpc_topology[] = {
 	{ NULL, },
 };
 
-static int init_big_cores(void)
+static int __init init_big_cores(void)
 {
 	int cpu;