[Bridge] [PATCH v5 net-next 6/6] selftests: forwarding: add test of MAC-Auth Bypass to locked port tests

[Petr Machata]

netdev at kapio-technology.com writes:

> Thx, looks good.
> I have tried to run the test as far as I can manually, but I don't seem to have 'busywait' in the
> system, which tc_check_packets() depends on, and I couldn't find any 'busywait' in Buildroot.

It's a helper defined in tools/testing/selftests/net/forwarding/lib.sh