Merge branch 'macmace-cleanups'

Finn Thain says:

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Fixes, cleanup and modernization for macmace driver

Changes since v4 of combined patch series:
- Removed redundant and non-portable MACH_IS_MAC tests.
- Omitted patches unrelated to macmace driver.
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Signed-off-by: David S. Miller <davem@davemloft.net>