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bonding: propogate vlan_features to bonding master 

Propogate the vlan_features of the slave devices to the bonding
master device, using the same logic as for regular features.

	Tested by Or Gerlitz <ogerlitz@voltaire.com>, who also removed
the debug logic from the original test patch.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jay Vosburgh 2009-08-28 12:05:12 +00:00 committed by David S. Miller
parent c06f51eab8
commit 278339a42a
1 changed files with 6 additions and 0 deletions
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6
drivers/net/bonding/bond_main.c
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@ -1331,6 +1331,7 @@ static int bond_compute_features(struct bonding *bond)
struct slave *slave;
struct net_device *bond_dev = bond->dev;
unsigned long features = bond_dev->features;
unsigned long vlan_features = 0;
unsigned short max_hard_header_len = max((u16)ETH_HLEN,
bond_dev->hard_header_len);
int i;
@ -1343,10 +1344,14 @@ static int bond_compute_features(struct bonding *bond)
features &= ~NETIF_F_ONE_FOR_ALL;
vlan_features = bond->first_slave->dev->vlan_features;
bond_for_each_slave(bond, slave, i) {
features = netdev_increment_features(features,
slave->dev->features,
NETIF_F_ONE_FOR_ALL);
vlan_features = netdev_increment_features(vlan_features,
slave->dev->vlan_features,
NETIF_F_ONE_FOR_ALL);
if (slave->dev->hard_header_len > max_hard_header_len)
max_hard_header_len = slave->dev->hard_header_len;
}
@ -1354,6 +1359,7 @@ static int bond_compute_features(struct bonding *bond)
done:
features |= (bond_dev->features & BOND_VLAN_FEATURES);
bond_dev->features = netdev_fix_features(features, NULL);
bond_dev->vlan_features = netdev_fix_features(vlan_features, NULL);
bond_dev->hard_header_len = max_hard_header_len;
return 0;