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ipv6: Store Router Alert option in IP6CB directly.

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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>
This commit is contained in:
YOSHIFUJI Hideaki / 吉藤英明 2013-01-13 05:02:45 +00:00 • committed by David S. Miller
parent 2b464f61f0
commit dd3332bfcb
4 changed files with 8 additions and 5 deletions
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3
include/linux/ipv6.h
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@ -84,7 +84,7 @@ static inline struct ipv6hdr *ipipv6_hdr(const struct sk_buff *skb)
struct inet6_skb_parm {
int iif;
__u16 ra;
__be16 ra;
__u16 hop;
__u16 dst0;
__u16 srcrt;
@ -100,6 +100,7 @@ struct inet6_skb_parm {
#define IP6SKB_XFRM_TRANSFORMED 1
#define IP6SKB_FORWARDED 2
#define IP6SKB_REROUTED 4
#define IP6SKB_ROUTERALERT 8
};
#define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb))