Save errno right after bpf_prog_test_run returns, so we later check the error code actually set by bpf_prog_test_run, not by some libcap function.
Cc: Jakub Kicinski jakub.kicinski@netronome.com Fixes: 5a8d5209ac022 ("selftests: bpf: add trivial JSET tests") Signed-off-by: Krzesimir Nowak krzesimir@kinvolk.io --- tools/testing/selftests/bpf/test_verifier.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index bf0da03f593b..514e17246396 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -818,15 +818,17 @@ static int do_prog_test_run(int fd_prog, bool unpriv, uint32_t expected_val, __u32 size_tmp = sizeof(tmp); uint32_t retval; int err; + int saved_errno;
if (unpriv) set_admin(true); err = bpf_prog_test_run(fd_prog, 1, data, size_data, tmp, &size_tmp, &retval, NULL); + saved_errno = errno; if (unpriv) set_admin(false); if (err) { - switch (errno) { + switch (saved_errno) { case 524/*ENOTSUPP*/: printf("Did not run the program (not supported) "); return 0;