Commit 489338a7 authored by Gustavo A. R. Silva's avatar Gustavo A. R. Silva Committed by Arnaldo Carvalho de Melo

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: default avatarGustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: default avatarJiri 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: 6a6cd11d ("perf test: Add test for the sched tracepoint format fields")
Link: http://lkml.kernel.org/r/20190122233439.GA5868@embeddedorSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 9dff0aa9
...@@ -17,7 +17,7 @@ static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name, ...@@ -17,7 +17,7 @@ static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name,
return -1; return -1;
} }
is_signed = !!(field->flags | TEP_FIELD_IS_SIGNED); is_signed = !!(field->flags & TEP_FIELD_IS_SIGNED);
if (should_be_signed && !is_signed) { if (should_be_signed && !is_signed) {
pr_debug("%s: \"%s\" signedness(%d) is wrong, should be %d\n", pr_debug("%s: \"%s\" signedness(%d) is wrong, should be %d\n",
evsel->name, name, is_signed, should_be_signed); evsel->name, name, is_signed, should_be_signed);
......
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