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| author |   Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-01-22 17:34:39 -0600 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-02-04 11:32:14 -0300 |
| commit | 489338a717a0dfbbd5a3fabccf172b78f0ac9015 (patch) | |
| tree | 22bdf342b90a5d00b05f6385536bec32e9776319 /tools/perf | |
| parent | perf/core: Don't WARN() for impossible ring-buffer sizes (diff) | |
| download | linux-dev-489338a717a0dfbbd5a3fabccf172b78f0ac9015.tar.xz linux-dev-489338a717a0dfbbd5a3fabccf172b78f0ac9015.zip | |
perf tests evsel-tp-sched: Fix bitwise operator
Notice that the use of the bitwise OR operator '|' always leads to true
in this particular case, which seems a bit suspicious due to the context
in which this expression is being used.
Fix this by using bitwise AND operator '&' instead.
This bug was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Fixes: 6a6cd11d4e57 ("perf test: Add test for the sched tracepoint format fields")
Link: http://lkml.kernel.org/r/20190122233439.GA5868@embeddedor
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/tests/evsel-tp-sched.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/tests/evsel-tp-sched.c b/tools/perf/tests/evsel-tp-sched.c index 5f8501c68da4..5cbba70bcdd0 100644 --- a/tools/perf/tests/evsel-tp-sched.c +++ b/tools/perf/tests/evsel-tp-sched.c @@ -17,7 +17,7 @@ static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name, return -1; } - is_signed = !!(field->flags | TEP_FIELD_IS_SIGNED); + is_signed = !!(field->flags & TEP_FIELD_IS_SIGNED); if (should_be_signed && !is_signed) { pr_debug("%s: \"%s\" signedness(%d) is wrong, should be %d\n", evsel->name, name, is_signed, should_be_signed); |