[PATCH v2 16/43] perf parse-events: Set pmu_name whenever a pmu is given

Ian Rogers
2023-04-28T07:41:46Z

Change add_event to always set pmu_name when possible as not all code
checks both pmu->name and evsel->pmu_name, for example,
uniquify_counter in stat-display.c.

Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/util/parse-events.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 4ba01577618e..5ade1cc8851d 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -269,6 +269,7 @@ __add_event(struct list_head *list, int *idx,
evsel->core.requires_cpu = pmu ? pmu->is_uncore : false;
evsel->auto_merge_stats = auto_merge_stats;
evsel->pmu = pmu;
+ evsel->pmu_name = pmu && pmu->name ? strdup(pmu->name) : NULL;

if (name)
evsel->name = strdup(name);
@@ -1500,12 +1501,7 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
/*metric_id=*/NULL, pmu,
/*config_terms=*/NULL, auto_merge_stats,
/*cpu_list=*/NULL);
- if (evsel) {
- evsel->pmu_name = name ? strdup(name) : NULL;
- return 0;
- } else {
- return -ENOMEM;
- }
+ return evsel ? 0 : -ENOMEM;
}

if (!parse_state->fake_pmu && perf_pmu__check_alias(pmu, head_config, &info))
@@ -1561,7 +1557,6 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
if (evsel->name)
evsel->use_config_name = true;

- evsel->pmu_name = name ? strdup(name) : NULL;
evsel->percore = config_term_percore(&evsel->config_terms);

if (parse_state->fake_pmu)
--
2.40.1.495.gc816e09b53d-goog