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| author | Shan Wei <shanwei@cn.fujitsu.com> | 2011-07-05 20:43:12 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-07-05 20:43:12 -0700 |
| commit | 712ae51afd55b20c04c5383d02ba5d10233313b1 (patch) | |
| tree | a609dc121a1c38c97346ea3bdf8f01a84fb54476 | |
| parent | 5318d809d7b4975ce5e5303e8508f89a5458c2b6 (diff) | |
| download | linux-712ae51afd55b20c04c5383d02ba5d10233313b1.tar.bz2 | |
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>
| -rw-r--r-- | net/8021q/vlan_dev.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 7ea5cf9ea08a..86bff9b1ac47 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -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; |