From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Tue, 2 Jun 2009 05:13:45 +0000 (+0000)
Subject: net: add _skb_dst opaque field
X-Git-Tag: v2.6.31-rc1~14^2~251
X-Git-Url: http://ftp.safe.ca/?a=commitdiff_plain;h=dfbf97f3ac980b69dfbc41c83a208211a38443e8;p=safe%2Fjmp%2Flinux-2.6

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 @@ struct sk_buff {
 	union {
 		struct  dst_entry	*dst;
 		struct  rtable		*rtable;
+		unsigned long		_skb_dst;
 	};
 #ifdef CONFIG_XFRM
 	struct	sec_path	*sp;