2.6.32-longterm review patch.  If anyone has any objections, please let me know.

------------------
 support.

From: Vlad Yasevich <[email protected]>

[ Upstream commit 081e83a78db9b0ae1f5eabc2dedecc865f509b98 ]

Macvlan devices do not initialize vlan_features.  As a result,
any vlan devices configured on top of macvlans perform very poorly.
Initialize vlan_features based on the vlan features of the lower-level
device.

Signed-off-by: Vlad Yasevich <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Willy Tarreau <[email protected]>
---
 drivers/net/macvlan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 2490aa3..47ff740 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -360,6 +360,7 @@ static int macvlan_init(struct net_device *dev)
        dev->state              = (dev->state & ~MACVLAN_STATE_MASK) |
                                  (lowerdev->state & MACVLAN_STATE_MASK);
        dev->features           = lowerdev->features & MACVLAN_FEATURES;
+       dev->vlan_features      = lowerdev->vlan_features & MACVLAN_FEATURES;
        dev->gso_max_size       = lowerdev->gso_max_size;
        dev->iflink             = lowerdev->ifindex;
        dev->hard_header_len    = lowerdev->hard_header_len;
-- 
1.7.12.2.21.g234cd45.dirty



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