diff --git a/kernel/sched.c b/kernel/sched.c
index 973f973..2e3545f 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -6957,7 +6957,7 @@
 	spin_unlock_irqrestore(&rq->lock, flags);
 }
 
-static int init_rootdomain(struct root_domain *rd, bool bootmem)
+static int __init_refok init_rootdomain(struct root_domain *rd, bool bootmem)
 {
 	memset(rd, 0, sizeof(*rd));