Merge branch 'macb-coding-style'

Moritz Fischer says:

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macb: Codingstyle cleanups

resending almost unchanged v2 here:

Changes from v2:
* Rebased onto net-next
* Changed 5th patches commit message
* Added Nicholas' and Michal's Acked-Bys

Changes from v1:
* Backed out variable scope changes
* Separated out ether_addr_copy into it's own commit
* Fixed typo in comments as suggested by Joe
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Signed-off-by: David S. Miller <davem@davemloft.net>