commit dd3332bfcb2223458f553f341d3388cb84040e6a
author YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org> Sun Jan 13 05:02:45 2013 +0000
committer David S. Miller <davem@davemloft.net> Sun Jan 13 20:17:14 2013 -0500
tree d48ba8b295ee3d08c4b4b4f8d924038ccec2c5eb
parent 2b464f61f036f7fb9cbc34710c9b2390499e87d0

ipv6: Store Router Alert option in IP6CB directly.

Router Alert option is very small and we can store the value
itself in the skb.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/exthdrs.c

diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 473f628..07a7d65 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -553,7 +553,8 @@
 	const unsigned char *nh = skb_network_header(skb);
 
 	if (nh[optoff + 1] == 2) {
-		IP6CB(skb)->ra = optoff;
+		IP6CB(skb)->flags |= IP6SKB_ROUTERALERT;
+		memcpy(&IP6CB(skb)->ra, nh + optoff + 2, sizeof(IP6CB(skb)->ra));
 		return true;
 	}
 	LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_ra: wrong RA length %d\n",