[PATCH 12/23] perf coresight: Remove superfluous check before use

Arnaldo Carvalho de Melo
2017-06-20T02:00:58Z

From: Kim Phillips <kim.phillips@arm.com>

The cs_etm_evsel variable is guaranteed to be set at this point in
cs_etm_recording_options().

Signed-off-by: Kim Phillips <kim.phillips@arm.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20170615125521.80cc128dc856bc1f2e61b730@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/arch/arm/util/cs-etm.c | 25 ++++++++++++-------------
1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c
index 02a649bfec3c..7ce3d1a25133 100644
--- a/tools/perf/arch/arm/util/cs-etm.c
+++ b/tools/perf/arch/arm/util/cs-etm.c
@@ -203,19 +203,18 @@ static int cs_etm_recording_options(struct auxtrace_record *itr,
pr_debug2("%s snapshot size: %zu\n", CORESIGHT_ETM_PMU_NAME,
opts->auxtrace_snapshot_size);

- if (cs_etm_evsel) {
- /*
- * To obtain the auxtrace buffer file descriptor, the auxtrace
- * event must come first.
- */
- perf_evlist__to_front(evlist, cs_etm_evsel);
- /*
- * In the case of per-cpu mmaps, we need the CPU on the
- * AUX event.
- */
- if (!cpu_map__empty(cpus))
- perf_evsel__set_sample_bit(cs_etm_evsel, CPU);
- }
+ /*
+ * To obtain the auxtrace buffer file descriptor, the auxtrace
+ * event must come first.
+ */
+ perf_evlist__to_front(evlist, cs_etm_evsel);
+
+ /*
+ * In the case of per-cpu mmaps, we need the CPU on the
+ * AUX event.
+ */
+ if (!cpu_map__empty(cpus))
+ perf_evsel__set_sample_bit(cs_etm_evsel, CPU);

/* Add dummy event to keep tracking */
if (opts->full_auxtrace) {
--
2.9.4