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| author | Fernando Luis Vazquez Cao <[email protected]> | 2014-02-18 12:20:09 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2014-02-20 07:15:38 +0000 |
| commit | 6671b2240c54585d4afb5286a29f1569fe5e40a8 (patch) | |
| tree | 79c4280715571a77b08b5946dbac2a2ad0fe1c4a /net/tipc/netlink.c | |
| parent | veth: Fix vlan_features so as to be able to use stacked vlan interfaces (diff) | |
| download | kernel-6671b2240c54585d4afb5286a29f1569fe5e40a8.tar.gz kernel-6671b2240c54585d4afb5286a29f1569fe5e40a8.zip | |
tun: remove bogus hardware vlan acceleration flags from vlan_features
Even though only the outer vlan tag can be HW accelerated in the transmission
path, in the TUN/TAP driver vlan_features mirrors hw_features, which happens
to have the NETIF_F_HW_VLAN_?TAG_TX flags set. Because of this, during packet
tranmisssion through a stacked vlan device dev_hard_start_xmit, (incorrectly)
assuming that the vlan device supports hardware vlan acceleration, does not
add the vlan header to the skb payload and the inner vlan tags are lost
(vlan_tci contains the outer vlan tag when userspace reads the packet from
the tap device).
Signed-off-by: Fernando Luis Vazquez Cao <[email protected]>
Signed-off-by: Toshiaki Makita <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/tipc/netlink.c')
0 files changed, 0 insertions, 0 deletions