Merge branch 'net-smc-fixes'

Ursula Braun says:

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net/smc: fixes 2018-02-28

here are 3 smc bug fixes for the net-tree. Karsten's first patch is
the reworked version of last week's
   "[PATCH net-next 2/5] net/smc: fix structure size"
patch, now solved without using __packed, and now targetted for net
instead of net-next.
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Signed-off-by: David S. Miller <davem@davemloft.net>