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vlan: updates vlan real_num_tx_queues 

Updates real_num_tx_queues in case underlying real device
has changed real_num_tx_queues.

-v2
 As per Eric Dumazet<eric.dumazet@gmail.com> comment:-
   -- adds BUG_ON to catch case of real_num_tx_queues exceeding num_tx_queues.
   -- created this self contained patch to just update real_num_tx_queues.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vasu Dev 2010-03-23 14:42:05 +00:00 committed by David S. Miller
parent 669d3e0bab
commit f6b9f4b263
1 changed files with 2 additions and 0 deletions
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2
net/8021q/vlan.c
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@ -378,6 +378,8 @@ static void vlan_transfer_features(struct net_device *dev,
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
vlandev->fcoe_ddp_xid = dev->fcoe_ddp_xid;
#endif
vlandev->real_num_tx_queues = dev->real_num_tx_queues;
BUG_ON(vlandev->real_num_tx_queues > vlandev->num_tx_queues);
if (old_features != vlandev->features)
netdev_features_change(vlandev);