ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR_ANY

[linux-2.6-microblaze.git] / include / net / arp.h

diff --git a/include/net/arp.h b/include/net/arp.h
index dc8cd47..977aabf 100644 (file)
--- a/include/net/arp.h
+++ b/include/net/arp.h
@@ -20,6 +20,9 @@ static inline u32 arp_hashfn(const void *pkey, const struct net_device *dev, u32
 
 static inline struct neighbour *__ipv4_neigh_lookup_noref(struct net_device *dev, u32 key)
 {
+       if (dev->flags & (IFF_LOOPBACK | IFF_POINTOPOINT))
+               key = INADDR_ANY;
+
        return ___neigh_lookup_noref(&arp_tbl, neigh_key_eq32, arp_hashfn, &key, dev);
 }