diff --git a/net/netfilter/ipvs/ip_vs_proto.c b/net/netfilter/ipvs/ip_vs_proto.c
index e91c8982dfac..50d82186da87 100644
--- a/net/netfilter/ipvs/ip_vs_proto.c
+++ b/net/netfilter/ipvs/ip_vs_proto.c
@@ -156,7 +156,7 @@ EXPORT_SYMBOL(ip_vs_proto_get);
 /*
  *	get ip_vs_protocol object data by netns and proto
  */
-struct ip_vs_proto_data *
+static struct ip_vs_proto_data *
 __ipvs_proto_data_get(struct netns_ipvs *ipvs, unsigned short proto)
 {
 	struct ip_vs_proto_data *pd;