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| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-01-22 17:34:39 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-20 10:09:06 +0100 |
| commit | bd0506104bcc396f112b5ef06655146bd5e5a5a3 (patch) | |
| tree | 6ec5aca7392edd9d3fb64f2915620c7019be1ca2 /tools | |
| parent | 3a4608dd185cfe7c106af7d374dc32fa8a006db8 (diff) | |
| download | linux-stable-bd0506104bcc396f112b5ef06655146bd5e5a5a3.tar.gz linux-stable-bd0506104bcc396f112b5ef06655146bd5e5a5a3.tar.bz2 linux-stable-bd0506104bcc396f112b5ef06655146bd5e5a5a3.zip | |
perf tests evsel-tp-sched: Fix bitwise operator
commit 489338a717a0dfbbd5a3fabccf172b78f0ac9015 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools')
| -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 52162425c969..5ce11eac4dd3 100644 --- a/tools/perf/tests/evsel-tp-sched.c +++ b/tools/perf/tests/evsel-tp-sched.c @@ -15,7 +15,7 @@ static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name, return -1; } - is_signed = !!(field->flags | FIELD_IS_SIGNED); + is_signed = !!(field->flags & 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); |