From: Brandon Philips Date: Wed, 15 Sep 2010 09:24:24 +0000 (+0000) Subject: net: enable GRO by default for vlan devices X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=16c3ea785fe4a383c6675dfe7316f3c815755bdd;p=openwrt%2Fstaging%2Fblogic.git net: enable GRO by default for vlan devices Currently vlan devices don't have GRO by default as none of the Ethernet drivers add NETIF_F_GRO to their vlan_features. As GRO is a software feature add GRO to dev->vlan_features in register_netdevice() and let vlan_dev_init() take care that it gets enabled only when dev->features has NETIF_F_GRO too. Signed-off-by: Brandon Philips Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- diff --git a/net/core/dev.c b/net/core/dev.c index 5bdce97b8175..09b3742c4c89 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5057,6 +5057,11 @@ int register_netdevice(struct net_device *dev) if (dev->features & NETIF_F_SG) dev->features |= NETIF_F_GSO; + /* Enable GRO for vlans by default if dev->features has GRO also. + * vlan_dev_init() will do the dev->features check. + */ + dev->vlan_features |= NETIF_F_GRO; + ret = call_netdevice_notifiers(NETDEV_POST_INIT, dev); ret = notifier_to_errno(ret); if (ret)