From ee6b967301b4aa5d4a4b61e2f682f086266db9fb Mon Sep 17 00:00:00 2001
From: Eric Dumazet <dada1@cosmosbay.com>
Date: Wed, 5 Mar 2008 18:30:47 -0800
Subject: [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid
 casts

(Anonymous) unions can help us to avoid ugly casts.

A common cast it the (struct rtable *)skb->dst one.

Defining an union like  :
union {
     struct dst_entry *dst;
     struct rtable *rtable;
};
permits to use skb->rtable in place.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/ipip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'net/ipv4/ipip.c')

diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index dbaed69de06a..894bce96284a 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -528,7 +528,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (!dst) {
 		/* NBMA tunnel */
-		if ((rt = (struct rtable*)skb->dst) == NULL) {
+		if ((rt = skb->rtable) == NULL) {
 			tunnel->stat.tx_fifo_errors++;
 			goto tx_error;
 		}
-- 
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