[IPV6] ROUTE: Make sending algorithm more friendly with RFC 4861.

[net-next-2.6.git] / net / ipv6 / route.c

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 6ecb5e6fae2eb9feff63496bd0749d02237af156..20083e0d3995cf13fcb3c3853b04925c3b2612bc 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -329,7 +329,7 @@ static inline int rt6_check_dev(struct rt6_info *rt, int oif)
 static inline int rt6_check_neigh(struct rt6_info *rt)
 {
        struct neighbour *neigh = rt->rt6i_nexthop;
-       int m = 0;
+       int m;
        if (rt->rt6i_flags & RTF_NONEXTHOP ||
            !(rt->rt6i_flags & RTF_GATEWAY))
                m = 1;
@@ -337,10 +337,15 @@ static inline int rt6_check_neigh(struct rt6_info *rt)
                read_lock_bh(&neigh->lock);
                if (neigh->nud_state & NUD_VALID)
                        m = 2;
-               else if (!(neigh->nud_state & NUD_FAILED))
+#ifdef CONFIG_IPV6_ROUTER_PREF
+               else if (neigh->nud_state & NUD_FAILED)
+                       m = 0;
+#endif
+               else
                        m = 1;
                read_unlock_bh(&neigh->lock);
-       }
+       } else
+               m = 0;
        return m;
 }