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perf tools: Fix misleading add event PMU debug message

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[ Upstream commit f034fc50d3c7d9385c20d505ab4cf56b8fd18ac7 ]

Fix incorrect debug message:

   Attempting to add event pmu 'intel_pt' with '' that may result in
   non-fatal errors

which always appears with perf record -vv and intel_pt e.g.

    perf record -vv -e intel_pt//u uname

The message is incorrect because there will never be non-fatal errors.

Suppress the message if the PMU is 'selectable' i.e. meant to be
selected directly as an event.

Fixes: 4ac22b484d4c79e8 ("perf parse-events: Make add PMU verbose output clearer")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20220411061758.2458417-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Adrian Hunter 2022-04-11 09:17:58 +03:00 committed by Greg Kroah-Hartman
parent 280f721edc
commit bfba9722cf
1 changed files with 3 additions and 2 deletions
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5
tools/perf/util/parse-events.c
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@ -1442,7 +1442,9 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
bool use_uncore_alias;
LIST_HEAD(config_terms);
if (verbose > 1) {
pmu = parse_state->fake_pmu ?: perf_pmu__find(name);
if (verbose > 1 && !(pmu && pmu->selectable)) {
fprintf(stderr, "Attempting to add event pmu '%s' with '",
name);
if (head_config) {
@ -1455,7 +1457,6 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
fprintf(stderr, "' that may result in non-fatal errors\n");
}
pmu = parse_state->fake_pmu ?: perf_pmu__find(name);
if (!pmu) {
char *err_str;