diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index 6f05e831a73e5c1e20e70c6d6c8102e537f1cb71..effb038c7e42d7b102373a271a7752ad30b26d32 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -745,7 +745,7 @@ 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);