diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 11590f2..a9dda29 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -292,10 +292,6 @@ static inline int neigh_is_connected(struct neighbour *neigh)
 	return neigh->nud_state&NUD_CONNECTED;
 }
 
-static inline int neigh_is_valid(struct neighbour *neigh)
-{
-	return neigh->nud_state&NUD_VALID;
-}
 
 static inline int neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
 {