Merge branch 'fix-small-bugs-and-annoyances-in-tc-testing'

Vlad Buslov says:

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Fix small bugs and annoyances in tc-testing
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Link: https://lore.kernel.org/r/20230612075712.2861848-1-vladbu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>