diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index 31acc6f33d98929ec2be31b0aec0469b4d5551fb..2c0a5c59dcd09f5493b7b222970738c61c1c770d 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -742,7 +742,7 @@ static int xfrmi_fill_info(struct sk_buff *skb, const struct net_device *dev)
 	return -EMSGSIZE;
 }
 
-struct net *xfrmi_get_link_net(const struct net_device *dev)
+static struct net *xfrmi_get_link_net(const struct net_device *dev)
 {
 	struct xfrm_if *xi = netdev_priv(dev);