Merge branch 's390-qeth-updates-2021-01-28'

Julian Wiedmann says:

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s390/qeth: updates 2021-01-28

Nothing special, mostly fine-tuning and follow-on cleanups for earlier fixes.
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Link: https://lore.kernel.org/r/20210128112551.18780-1-jwi@linux.ibm.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>