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| author | Song Liu <song@kernel.org> | 2023-04-13 00:04:21 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2023-04-13 15:32:04 +0300 |
| commit | de6d014a09bf12a9a8959d60c0a1d4a41d394a89 (patch) | |
| tree | 3c6c5aadb6209a77bc78dd07b27f1b676682fc82 /tools/testing/selftests/bpf/testing_helpers.h | |
| parent | 5a674611d116a5fc28c5429beea2b78c6e2933ef (diff) | |
| download | linux-de6d014a09bf12a9a8959d60c0a1d4a41d394a89.tar.xz | |
selftests/bpf: Use read_perf_max_sample_freq() in perf_event_stackmap
Currently, perf_event sample period in perf_event_stackmap is set too low
that the test fails randomly. Fix this by using the max sample frequency,
from read_perf_max_sample_freq().
Move read_perf_max_sample_freq() to testing_helpers.c. Replace the CHECK()
with if-printf, as CHECK is not available in testing_helpers.c.
Fixes: 1da4864c2b20 ("selftests/bpf: Add callchain_stackid")
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230412210423.900851-2-song@kernel.org
Diffstat (limited to 'tools/testing/selftests/bpf/testing_helpers.h')
| -rw-r--r-- | tools/testing/selftests/bpf/testing_helpers.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/testing_helpers.h b/tools/testing/selftests/bpf/testing_helpers.h index 6ec00bf79cb5..eb8790f928e4 100644 --- a/tools/testing/selftests/bpf/testing_helpers.h +++ b/tools/testing/selftests/bpf/testing_helpers.h @@ -20,3 +20,5 @@ struct test_filter_set; int parse_test_list(const char *s, struct test_filter_set *test_set, bool is_glob_pattern); + +__u64 read_perf_max_sample_freq(void); |