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authorNamhyung Kim <namhyung@kernel.org>2023-08-25 09:41:50 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2023-08-29 14:16:14 -0300
commit11f5710d96afcd569a7c8e00395b714bbea3ce5d (patch)
tree72d92644afffaaea0d727585e23b1c3c033c41df /scripts/gdb/linux/utils.py
parentc091c78b73c82f1e2811ab19b8e287ddc7807651 (diff)
perf test shell record_bpf_filter: Skip 6.2 kernel
The BPF sample filtering requires two kernel changes below: * bpf_cast_to_kernel_ctx() kfunc (added in v6.2) * setting perf_sample_data->sample_flags (finished in v6.3) The perf tools can check bpf_cast_to_kernel_ctx() easily so it can refuse BPF filters on those old kernels (v6.1 and earlier). But checking sample_flags appears to be difficult so current code won't work on v6.2 kernel. That's unfortunate but I don't know what's the correct way to handle it. For now, let's skip v6.2 kernels explicitly (if failed) in the test. Fixes: 9575ecdd198a50e9 ("perf test: Add perf record sample filtering test") Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: bpf@vger.kernel.org Link: https://lore.kernel.org/r/20230825164152.165610-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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