diff options
| author | Stanislav Fomichev <sdf@google.com> | 2022-11-23 12:08:29 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-11-23 12:38:16 -0800 |
| commit | 8ac88eece8009428e2577c345080a458e4507e2f (patch) | |
| tree | 2aedeb13f193ba4d28acb3bbd94e8e15f48e551b /tools/testing/selftests/bpf/network_helpers.c | |
| parent | 2fcc6081a7bf8f7f531cffdc58b630b822e700a1 (diff) | |
selftests/bpf: Mount debugfs in setns_by_fd
Jiri reports broken test_progs after recent commit 68f8e3d4b916
("selftests/bpf: Make sure zero-len skbs aren't redirectable").
Apparently we don't remount debugfs when we switch back networking namespace.
Let's explicitly mount /sys/kernel/debug.
0: https://lore.kernel.org/bpf/63b85917-a2ea-8e35-620c-808560910819@meta.com/T/#ma66ca9c92e99eee0a25e40f422489b26ee0171c1
Fixes: a30338840fa5 ("selftests/bpf: Move open_netns() and close_netns() into network_helpers.c")
Reported-by: Jiri Olsa <olsajiri@gmail.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20221123200829.2226254-1-sdf@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/network_helpers.c')
| -rw-r--r-- | tools/testing/selftests/bpf/network_helpers.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c index bec15558fd93..1f37adff7632 100644 --- a/tools/testing/selftests/bpf/network_helpers.c +++ b/tools/testing/selftests/bpf/network_helpers.c @@ -426,6 +426,10 @@ static int setns_by_fd(int nsfd) if (!ASSERT_OK(err, "mount /sys/fs/bpf")) return err; + err = mount("debugfs", "/sys/kernel/debug", "debugfs", 0, NULL); + if (!ASSERT_OK(err, "mount /sys/kernel/debug")) + return err; + return 0; } |