Merge branch 'tipc-next'

Merge branch 'tipc-next'

Jon Maloy says:

====================
tipc: resolve message disordering problem

When TIPC receives messages from multi-threaded device drivers it may
occasionally deliver messages to their destination sockets in the wrong
order. This happens despite correct resequencing at the link layer,
because the upcall path from link to socket is not protected by any
locks.

These commits solve this problem by introducing an 'input' message
queue in each link, through which messages must be delivered to the
upper layers.
====================

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