net: unset IFF_XMIT_DST_RELEASE in ipip_tunnel_setup()

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

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 9054139795af480757357dc626815296666f8919..bb2f1b17fbf130982f3f88f1bbb22bc1e7c3a111 100644 (file)
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -713,6 +713,7 @@ static void ipip_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 void ipip_tunnel_init(struct net_device *dev)