diff mbox series

[v12,3/4] perf pmu: add perf_pmu__find_by_type helper

Message ID 20200429231443.207201-4-irogers@google.com
State Not Applicable
Delegated to: BPF Maintainers
Headers show
Series perf tools: add support for libpfm4 | expand

Commit Message

Ian Rogers April 29, 2020, 11:14 p.m. UTC 
From: Stephane Eranian <eranian@google.com>

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

Signed-off-by: Stephane Eranian <eranian@google.com>
Reviewed-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/pmu.c | 11 +++++++++++
 tools/perf/util/pmu.h |  1 +
 2 files changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index d9f89ed18dea..0fb7d438d9ad 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);