Commit-ID: cf0c37b6dbf74fb71bea07b516612d29e00dcbc4
Gitweb: https://git.kernel.org/tip/cf0c37b6dbf74fb71bea07b516612d29e00dcbc4
Author: Leo Yan <leo.yan@xxxxxxxxxx>
AuthorDate: Sun, 28 Apr 2019 16:32:28 +0800
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 2 May 2019 16:00:20 -0400
perf cs-etm: Don't check cs_etm_queue::prev_packet validity
Since cs_etm_queue::prev_packet is allocated for all cases, it will
never be NULL pointer; now validity checking prev_packet is pointless,
remove all of them.
Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
Tested-by: Robert Walker <robert.walker@xxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Cc: Mike Leach <mike.leach@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Suzuki K Poulouse <suzuki.poulose@xxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/20190428083228.20246-2-leo.yan@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/cs-etm.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 110804936fc3..7777cfc1ad8c 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -981,7 +981,6 @@ static int cs_etm__sample(struct cs_etm_queue *etmq)
* PREV_PACKET is a branch.
*/
if (etm->synth_opts.last_branch &&
- etmq->prev_packet &&
etmq->prev_packet->sample_type == CS_ETM_RANGE &&
etmq->prev_packet->last_instr_taken_branch)
cs_etm__update_last_branch_rb(etmq);
@@ -1014,7 +1013,7 @@ static int cs_etm__sample(struct cs_etm_queue *etmq)
etmq->period_instructions = instrs_over;
}
- if (etm->sample_branches && etmq->prev_packet) {
+ if (etm->sample_branches) {
bool generate_sample = false;
/* Generate sample for tracing on packet */
@@ -1071,9 +1070,6 @@ static int cs_etm__flush(struct cs_etm_queue *etmq)
struct cs_etm_auxtrace *etm = etmq->etm;
struct cs_etm_packet *tmp;
- if (!etmq->prev_packet)
- return 0;
-
/* Handle start tracing packet */
if (etmq->prev_packet->sample_type == CS_ETM_EMPTY)
goto swap_packet;
|