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Commit c45a3dfb authored by David S. Miller's avatar David S. Miller
Browse files

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: default avatarDavid S. Miller <davem@davemloft.net>
parent 4991969a

net/ipv6/ip6_output.c

+3 −5
Original line number Diff line number Diff line
@@ -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;