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authorMichał Mirosław <mirq-linux@rere.qmqm.pl>2011-05-06 07:56:29 +0000
committerDavid S. Miller <davem@davemloft.net>2011-05-12 17:54:13 -0400
commitf0a619ccfb8a2ec8ff083a02299cfd076c362b27 (patch)
tree88b90e6fcec0947fc46eb178948ac78d1dc45134 /net/8021q
parent864b5418ebc16893cfd27ff3cda254eff0f56d6f (diff)
downloadlinux-f0a619ccfb8a2ec8ff083a02299cfd076c362b27.tar.bz2
net: Fix vlan_features propagation
Fix VLAN features propagation for devices which change vlan_features. For this to work, driver needs to make sure netdev_features_changed() gets called after the change (it is e.g. after ndo_set_features()). Side effect is that a user might request features that will never be enabled on a VLAN device. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q')
-rw-r--r--net/8021q/vlan_dev.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 58f8010e1aef..f247f5bff88d 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -528,7 +528,7 @@ static int vlan_dev_init(struct net_device *dev)
(1<<__LINK_STATE_DORMANT))) |
(1<<__LINK_STATE_PRESENT);
- dev->hw_features = real_dev->vlan_features & NETIF_F_ALL_TX_OFFLOADS;
+ dev->hw_features = NETIF_F_ALL_TX_OFFLOADS;
dev->features |= real_dev->vlan_features | NETIF_F_LLTX;
dev->gso_max_size = real_dev->gso_max_size;
@@ -587,9 +587,11 @@ static u32 vlan_dev_fix_features(struct net_device *dev, u32 features)
{
struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
- features &= (real_dev->features | NETIF_F_LLTX);
+ features &= real_dev->features;
+ features &= real_dev->vlan_features;
if (dev_ethtool_get_rx_csum(real_dev))
features |= NETIF_F_RXCSUM;
+ features |= NETIF_F_LLTX;
return features;
}