---

yaml
---
r: 271631
b: refs/heads/master
c: 14ef37b
h: refs/heads/master
i:
  271629: bc6c759
  271627: 21b0856
  271623: 19eb2c3
  271615: e36eb74
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e6d265e8504ab4a3368b8645d318b344ee88b280
+refs/heads/master: 14ef37b6d00eb5d06704e45989ba4c21e7be7673

trunk/net/ipv6/addrconf.c

@@ -1713,6 +1713,40 @@ addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
 	ip6_route_add(&cfg);
 }
 
+
+static struct rt6_info *addrconf_get_prefix_route(const struct in6_addr *pfx,
+						  int plen,
+						  const struct net_device *dev,
+						  u32 flags, u32 noflags)
+{
+	struct fib6_node *fn;
+	struct rt6_info *rt = NULL;
+	struct fib6_table *table;
+
+	table = fib6_get_table(dev_net(dev), RT6_TABLE_PREFIX);
+	if (table == NULL)
+		return NULL;
+
+	write_lock_bh(&table->tb6_lock);
+	fn = fib6_locate(&table->tb6_root, pfx, plen, NULL, 0);
+	if (!fn)
+		goto out;
+	for (rt = fn->leaf; rt; rt = rt->dst.rt6_next) {
+		if (rt->rt6i_dev->ifindex != dev->ifindex)
+			continue;
+		if ((rt->rt6i_flags & flags) != flags)
+			continue;
+		if ((noflags != 0) && ((rt->rt6i_flags & flags) != 0))
+			continue;
+		dst_hold(&rt->dst);
+		break;
+	}
+out:
+	write_unlock_bh(&table->tb6_lock);
+	return rt;
+}
+
+
 /* Create "default" multicast route to the interface */
 
 static void addrconf_add_mroute(struct net_device *dev)
@@ -1842,10 +1876,13 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
 		if (addrconf_finite_timeout(rt_expires))
 			rt_expires *= HZ;
 
-		rt = rt6_lookup(net, &pinfo->prefix, NULL,
-				dev->ifindex, 1);
+		rt = addrconf_get_prefix_route(&pinfo->prefix,
+					       pinfo->prefix_len,
+					       dev,
+					       RTF_ADDRCONF | RTF_PREFIX_RT,
+					       RTF_GATEWAY | RTF_DEFAULT);
 
-		if (rt && addrconf_is_prefix_route(rt)) {
+		if (rt) {
 			/* Autoconf prefix route */
 			if (valid_lft == 0) {
 				ip6_del_rt(rt);