Merge branch 'ipvlan-packet-scrub'

Mahesh Bandewar says:

====================
ipvlan: packet scrub

While crossing namespace boundary IPvlan aggressively scrubs packets.
This is creating problems. First thing is that scrubbing changes the
packet type in skb meta-data to PACKET_HOST. This causes erroneous
packet delivery when dev_forward_skb() has already marked the packet
type as OTHER_HOST.

On the egress side scrubbing just before calling dev_queue_xmit()
creates another set of problems. Scrubbing remove skb->sk so the
prio update gets missed and more seriously, socket back-pressure
fails making TSQ not function correctly.

The first patch in the series just reverts the earlier change which
was adding a mac-check, but that is unnecessary if packet_type that
dev_forward_skb() has set is honored. The second path removes two of
the scrubs which are causing problems described above.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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