net: add _skb_dst opaque field
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>
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index aff494b..d4d7c66 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -325,6 +325,7 @@
union {
struct dst_entry *dst;
struct rtable *rtable;
+ unsigned long _skb_dst;
};
#ifdef CONFIG_XFRM
struct sec_path *sp;