[PATCH 66/91] perf pmu: Add perf_pmu__find_by_type helper

From: Stephane Eranian <redacted>

This is used by libpfm4 during event parsing to locate the pmu for an
event.

Signed-off-by: Stephane Eranian <redacted>
Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <redacted>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Alexey Budankov <redacted>
Cc: Andi Kleen <redacted>
Cc: Andrii Nakryiko <redacted>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Igor Lubashev <redacted>
Cc: Jin Yao <redacted>
Cc: Jiwei Sun <redacted>
Cc: John Garry <redacted>
Cc: Kan Liang <redacted>
Cc: Leo Yan <redacted>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <redacted>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <redacted>
Cc: Yonghong Song <redacted>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: yuzhoujian <redacted>
Link: http://lore.kernel.org/lkml/20200429231443.207201-4-irogers@google.com (local)
Signed-off-by: Arnaldo Carvalho de Melo <redacted>
---
 tools/perf/util/pmu.c | 11 +++++++++++
 tools/perf/util/pmu.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 5642de7f8be7..92bd7fafcce6 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c

@@ -871,6 +871,17 @@ static struct perf_pmu *pmu_find(const char *name)
 	return NULL;
 }
 
+struct perf_pmu *perf_pmu__find_by_type(unsigned int type)
+{
+	struct perf_pmu *pmu;
+
+	list_for_each_entry(pmu, &pmus, list)
+		if (pmu->type == type)
+			return pmu;
+
+	return NULL;
+}
+
 struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu)
 {
 	/*

diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 1edd214b75a5..cb6fbec50313 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h

@@ -72,6 +72,7 @@ struct perf_pmu_alias {
 };
 
 struct perf_pmu *perf_pmu__find(const char *name);
+struct perf_pmu *perf_pmu__find_by_type(unsigned int type);
 int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
 		     struct list_head *head_terms,
 		     struct parse_events_error *error);

-- 
2.21.1