Merge branch 'devlink-fixes'

Leon Romanovsky says:

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Batch of devlink related fixes

I'm asking to apply this batch of devlink fixes to net-next and not to
net, because most if not all fixes are for old code or/and can be considered
as cleanup.

It will cancel the need to deal with merge conflicts for my next devlink series :).
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Signed-off-by: David S. Miller <davem@davemloft.net>