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authorIngo Molnar <mingo@elte.hu>2008-06-16 11:23:36 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-16 11:23:36 +0200
commit766d02786ecd22932beeb9ca8bad6d8c5a552ef9 (patch)
treef6f2df0e35bbea914d1f4d12be6d02f128c73575 /net/8021q/vlan.c
parent906d882cacecd37ad2fdd03ed2a9b232bcb9507e (diff)
parent066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff)
downloadop-kernel-dev-766d02786ecd22932beeb9ca8bad6d8c5a552ef9.zip
op-kernel-dev-766d02786ecd22932beeb9ca8bad6d8c5a552ef9.tar.gz
Merge branch 'linus' into core/rcu
Diffstat (limited to 'net/8021q/vlan.c')
-rw-r--r--net/8021q/vlan.c28
1 files changed, 25 insertions, 3 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index e7ddbfa..08f14f6 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -383,6 +383,18 @@ static void vlan_sync_address(struct net_device *dev,
memcpy(vlan->real_dev_addr, dev->dev_addr, ETH_ALEN);
}
+static void vlan_transfer_features(struct net_device *dev,
+ struct net_device *vlandev)
+{
+ unsigned long old_features = vlandev->features;
+
+ vlandev->features &= ~dev->vlan_features;
+ vlandev->features |= dev->features & dev->vlan_features;
+
+ if (old_features != vlandev->features)
+ netdev_features_change(vlandev);
+}
+
static void __vlan_device_event(struct net_device *dev, unsigned long event)
{
switch (event) {
@@ -411,10 +423,8 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
int i, flgs;
struct net_device *vlandev;
- if (is_vlan_dev(dev)) {
+ if (is_vlan_dev(dev))
__vlan_device_event(dev, event);
- goto out;
- }
grp = __vlan_find_group(dev);
if (!grp)
@@ -451,6 +461,18 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
}
break;
+ case NETDEV_FEAT_CHANGE:
+ /* Propagate device features to underlying device */
+ for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
+ vlandev = vlan_group_get_device(grp, i);
+ if (!vlandev)
+ continue;
+
+ vlan_transfer_features(dev, vlandev);
+ }
+
+ break;
+
case NETDEV_DOWN:
/* Put all VLANs for this dev in the down state too. */
for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
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