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net: add _skb_dst opaque field

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struct sk_buff uses one union to define dst and rtable fields.

We want to replace direct access to these pointers by accessors.

First patch adds a new "unsigned long _skb_dst;" opaque field
in this union.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2009-06-02 05:13:45 +00:00 • committed by David S. Miller
commit dfbf97f3ac
1 changed files with 1 additions and 0 deletions
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include/linux/skbuff.h
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@ -325,6 +325,7 @@ struct sk_buff {
union { union {
struct dst_entry *dst; struct dst_entry *dst;
struct rtable *rtable; struct rtable *rtable;
unsigned long _skb_dst;
}; };
#ifdef CONFIG_XFRM #ifdef CONFIG_XFRM
struct sec_path *sp; struct sec_path *sp;