ipv6: Eliminate dst_get_neighbour_noref() usage in ip6_forward().

It's only used to get at neigh->primary_key, which in this context is
always going to be the same as rt->rt6i_gateway.

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

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 604809b..7a98fc2 100644 (file)
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -388,7 +388,6 @@ int ip6_forward(struct sk_buff *skb)
        struct ipv6hdr *hdr = ipv6_hdr(skb);
        struct inet6_skb_parm *opt = IP6CB(skb);
        struct net *net = dev_net(dst->dev);
-       struct neighbour *n;
        u32 mtu;
 
        if (net->ipv6.devconf_all->forwarding == 0)
@@ -463,8 +462,7 @@ int ip6_forward(struct sk_buff *skb)
           send redirects to source routed frames.
           We don't send redirects to frames decapsulated from IPsec.
         */
-       n = dst_get_neighbour_noref(dst);
-       if (skb->dev == dst->dev && n && opt->srcrt == 0 && !skb_sec_path(skb)) {
+       if (skb->dev == dst->dev && opt->srcrt == 0 && !skb_sec_path(skb)) {
                struct in6_addr *target = NULL;
                struct rt6_info *rt;
 
@@ -474,8 +472,8 @@ int ip6_forward(struct sk_buff *skb)
                 */
 
                rt = (struct rt6_info *) dst;
-               if ((rt->rt6i_flags & RTF_GATEWAY))
-                       target = (struct in6_addr*)&n->primary_key;
+               if (rt->rt6i_flags & RTF_GATEWAY)
+                       target = &rt->rt6i_gateway;
                else
                        target = &hdr->daddr;