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net: vlan: enable soft features regardless of underlying device 

If gso/gro feature of underlying device is turned off，
then new created vlan device never can turn gso/gro on. 

Although underlying device don't support TSO, we still
should use software segments for vlan device.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shan Wei 2011-07-05 20:43:12 -07:00 committed by David S. Miller
parent 5318d809d7
commit 712ae51afd
1 changed files with 5 additions and 0 deletions
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5
net/8021q/vlan_dev.c
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@ -586,9 +586,14 @@ static void vlan_dev_uninit(struct net_device *dev)
static u32 vlan_dev_fix_features(struct net_device *dev, u32 features)
{
struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
u32 old_features = features;
features &= real_dev->features;
features &= real_dev->vlan_features;
if (old_features & NETIF_F_SOFT_FEATURES)
features |= old_features & NETIF_F_SOFT_FEATURES;
if (dev_ethtool_get_rx_csum(real_dev))
features |= NETIF_F_RXCSUM;
features |= NETIF_F_LLTX;