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tunnel: Inherit NETIF_F_SG for hw_enc_features.

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Inherit scatergather feature for tunnel devices to avoid
copy for TSO packets of tunneling device like GRE.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pravin B Shelar 2013-03-07 09:28:08 +00:00 committed by David S. Miller
parent ec5f061564
commit ee579677c2
1 changed files with 4 additions and 0 deletions
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4
net/core/dev.c
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@ -5205,6 +5205,10 @@ int register_netdevice(struct net_device *dev)
*/
dev->vlan_features |= NETIF_F_HIGHDMA;
/* Make NETIF_F_SG inheritable to tunnel devices.
*/
dev->hw_enc_features |= NETIF_F_SG;
ret = call_netdevice_notifiers(NETDEV_POST_INIT, dev);
ret = notifier_to_errno(ret);
if (ret)