netdev@xxxxxxxxxxxxxxxxxxxx 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