diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 866dcc7eeb0..51ee9654557 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -779,7 +779,8 @@ int mem_cgroup_shrink_usage(struct mm_struct *mm, gfp_t gfp_mask)
 	return 0;
 }
 
-int mem_cgroup_resize_limit(struct mem_cgroup *memcg, unsigned long long val)
+static int mem_cgroup_resize_limit(struct mem_cgroup *memcg,
+				   unsigned long long val)
 {
 
 	int retry_count = MEM_CGROUP_RECLAIM_RETRIES;