Merge branch 'tipc-some-minor-improvements'

Jon Maloy says:

====================
tipc: some minor improvements

We add some improvements that will be useful in future commits.
====================

Link: https://lore.kernel.org/r/20201125182915.711370-1-jmaloy@redhat.com


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