ipv6: Store route neighbour in rt6_info struct.

This makes for a simplified conversion away from dst_get_neighbour*().

All code outside of ipv6 will use neigh lookups via dst_neigh_lookup*().

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 2 deletions

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index c94e4aabe11b..6d9c0abc8c20 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -88,6 +88,7 @@ static int ip6_finish_output2(struct sk_buff *skb)
         struct dst_entry *dst = skb_dst(skb);
         struct net_device *dev = dst->dev;
         struct neighbour *neigh;
+        struct rt6_info *rt;
 
         skb->protocol = htons(ETH_P_IPV6);
         skb->dev = dev;
@@ -123,7 +124,8 @@ static int ip6_finish_output2(struct sk_buff *skb)
         }
 
         rcu_read_lock();
-        neigh = dst_get_neighbour_noref(dst);
+        rt = (struct rt6_info *) dst;
+        neigh = rt->n;
         if (neigh) {
                 int res = dst_neigh_output(dst, neigh, skb);
 
@@ -944,6 +946,7 @@ static int ip6_dst_lookup_tail(struct sock *sk,
         struct net *net = sock_net(sk);
 #ifdef CONFIG_IPV6_OPTIMISTIC_DAD
         struct neighbour *n;
+        struct rt6_info *rt;
 #endif
         int err;
 
@@ -972,7 +975,8 @@ static int ip6_dst_lookup_tail(struct sock *sk,
          * dst entry of the nexthop router
          */
         rcu_read_lock();
-        n = dst_get_neighbour_noref(*dst);
+        rt = (struct rt6_info *) dst;
+        n = rt->n;
         if (n && !(n->nud_state & NUD_VALID)) {
                 struct inet6_ifaddr *ifp;
                 struct flowi6 fl_gw6;