Merge branch 's390-net-updates-2023-02-06'

Alexandra Winter says:

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s390/net: updates 2023-02-06

Just maintenance patches, no functional changes.
If you disagree with patch 4, we can leave it out.
We prefer scnprintf, but no strong opinion.
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Link: https://lore.kernel.org/r/20230209110424.1707501-1-wintera@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>