From: Martin KaFai Lau <martin.lau@xxxxxxxxxx> Some of the tests do mount/umount dance when switching netns. It is error-prone like https://lore.kernel.org/bpf/20221123200829.2226254-1-sdf@xxxxxxxxxx/ Another issue is, there are many left over after running some of the tests: #> mount | egrep sysfs | wc -l 19 Instead of further debugging this dance, this set is to avoid the needs to do this remounting altogether. It will then allow those tests to be run in parallel again. Martin KaFai Lau (7): selftests/bpf: Use if_nametoindex instead of reading the /sys/net/class/*/ifindex selftests/bpf: Avoid pinning bpf prog in the tc_redirect_dtime test selftests/bpf: Avoid pinning bpf prog in the tc_redirect_peer_l3 test selftests/bpf: Avoid pinning bpf prog in the netns_load_bpf() callers selftests/bpf: Remove the "/sys" mount and umount dance in {open,close}_netns selftests/bpf: Remove serial from tests using {open,close}_netns selftests/bpf: Avoid pinning prog when attaching to tc ingress in btf_skc_cls_ingress tools/testing/selftests/bpf/network_helpers.c | 51 +-- .../bpf/prog_tests/btf_skc_cls_ingress.c | 25 +- .../selftests/bpf/prog_tests/empty_skb.c | 2 +- .../selftests/bpf/prog_tests/tc_redirect.c | 314 +++++++++--------- .../selftests/bpf/prog_tests/test_tunnel.c | 2 +- .../bpf/prog_tests/xdp_do_redirect.c | 2 +- .../selftests/bpf/prog_tests/xdp_synproxy.c | 2 +- 7 files changed, 178 insertions(+), 220 deletions(-) -- 2.30.2