Subject: [PATCH net-next-2.6] net: unset IFF_XMIT_DST_RELEASE in ipgre_tunnel_setup()

From: Eric Dumazet <[email-masked]>
Date: Fri, 29 May 2009 10:35:10 +0200

ipgre_tunnel_xmit() might need skb->dst, so tell dev_hard_start_xmit()
to no release it.

Signed-off-by: Eric Dumazet <[email-masked]>
---
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index e62510d..77436e2 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1238,6 +1238,7 @@ static void ipgre_tunnel_setup(struct net_device *dev)
 	dev->iflink		= 0;
 	dev->addr_len		= 4;
 	dev->features		|= NETIF_F_NETNS_LOCAL;
+	dev->priv_flags		&= ~IFF_XMIT_DST_RELEASE;
 }
 
 static int ipgre_tunnel_init(struct net_device *dev)