netdev - [PATCH net-next-2.6] net: unset IFF_XMIT_DST_RELEASE in ipgre_tunnel

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Message-ID: <4A1F9E3E.5020409@gmail.com>
Date:	Fri, 29 May 2009 10:35:10 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	"David S. Miller" <davem@...emloft.net>
CC:	Linux Netdev List <netdev@...r.kernel.org>
Subject: [PATCH net-next-2.6] net: unset IFF_XMIT_DST_RELEASE in ipgre_tunnel_setup()

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

Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
---
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)
--
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