Merge branch 's390-net-updates-2021-12-06'

Alexandra Winter says:

====================
s390/net: updates 2021-12-06

This brings some maintenance improvements and removes some
unnecessary code checks.
====================

Link: https://lore.kernel.org/r/20211207090452.1155688-1-wintera@linux.ibm.com


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