gre: clear IFF_TX_SKB_SHARING

ether_setup sets IFF_TX_SKB_SHARING but this is not supported by gre
as it modifies the skb on xmit.

Also, clean up whitespace in ipgre_tap_setup when we're already touching it.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 56fdf4e0dce4..41ba68de46d8 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1054,8 +1054,9 @@ static const struct net_device_ops gre_tap_netdev_ops = {
 static void ipgre_tap_setup(struct net_device *dev)
 {
         ether_setup(dev);
-        dev->netdev_ops         = &gre_tap_netdev_ops;
-        dev->priv_flags         |= IFF_LIVE_ADDR_CHANGE;
+        dev->netdev_ops = &gre_tap_netdev_ops;
+        dev->priv_flags &= ~IFF_TX_SKB_SHARING;
+        dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
         ip_tunnel_setup(dev, gre_tap_net_id);
 }