ether_demux does not handle frames with embedded vlan tags

[Ryan Stone]

2011/10/19  <rozhuk.im at gmail.com>:
> This may be a wrong configuration or QinQ: packet may have M_VLAN tag is
> set and still vlan-tagged (ether_type = VLAN)

It is not QinQ in my case.  The interface that the upper hook exports
is that you send it a valid ethernet frame and it passes that frame up
the stack.  A vlan-tagged frame is a valid frame so I don't see why it
should not be handled correctly.