ipv4: Define __ipv4_neigh_lookup_noref when CONFIG_INET is disabled

commit 9b3040a6aafd7898ece7fc7efcbca71e42aa8069 upstream. Define __ipv4_neigh_lookup_noref to return NULL when CONFIG_INET is disabled. Fixes: 4b2a2bfeb3f0 ("neighbor: Call __ipv4_neigh_lookup_noref in neigh_xmit") Reported-by: kbuild test robot <[email protected]> Signed-off-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]> Cc: Nobuhiro Iwamatsu <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
akeromi · Jun 11, 2019 · 645fa68 · 645fa68
1 parent ec8a9eb
commit 645fa68
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/include/net/arp.h b/include/net/arp.h
@@ -18,13 +18,21 @@ static inline u32 arp_hashfn(const void *pkey, const struct net_device *dev, u32
 	return val * hash_rnd[0];
 }
 
+#ifdef CONFIG_INET
 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);
 }
+#else
+static inline
+struct neighbour *__ipv4_neigh_lookup_noref(struct net_device *dev, u32 key)
+{
+	return NULL;
+}
+#endif
 
 static inline struct neighbour *__ipv4_neigh_lookup(struct net_device *dev, u32 key)
 {