ipv4: Make neigh lookups directly in output packet path.

Do not use the dst cached neigh, we'll be getting rid of that.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 6cdfeed..e1d18bd 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -202,9 +202,16 @@
 extern struct neighbour *	neigh_lookup_nodev(struct neigh_table *tbl,
 						   struct net *net,
 						   const void *pkey);
-extern struct neighbour *	neigh_create(struct neigh_table *tbl,
+extern struct neighbour *	__neigh_create(struct neigh_table *tbl,
+					       const void *pkey,
+					       struct net_device *dev,
+					       bool want_ref);
+static inline struct neighbour *neigh_create(struct neigh_table *tbl,
 					     const void *pkey,
-					     struct net_device *dev);
+					     struct net_device *dev)
+{
+	return __neigh_create(tbl, pkey, dev, true);
+}
 extern void			neigh_destroy(struct neighbour *neigh);
 extern int			__neigh_event_send(struct neighbour *neigh, struct sk_buff *skb);
 extern int			neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,