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Date: Tue, 25 Aug 2020 07:35:08 +0800 From: Jin Yao <yao.jin@...ux.intel.com> To: acme@...nel.org, jolsa@...nel.org, peterz@...radead.org, mingo@...hat.com, alexander.shishkin@...ux.intel.com Cc: Linux-kernel@...r.kernel.org, ak@...ux.intel.com, kan.liang@...el.com, yao.jin@...el.com, Jin Yao <yao.jin@...ux.intel.com> Subject: [PATCH v4 2/7] perf util: Get the evsel_streams by evsel_idx In previous patch, we have created evsel_streams array This patch returns the specified evsel_streams according to the evsel_idx. Signed-off-by: Jin Yao <yao.jin@...ux.intel.com> --- v4: - Rename the patch from 'perf util: Return per-event callchain streams' to 'perf util: Get the evsel_streams by evsel_idx' tools/perf/util/stream.c | 11 +++++++++++ tools/perf/util/stream.h | 3 +++ 2 files changed, 14 insertions(+) diff --git a/tools/perf/util/stream.c b/tools/perf/util/stream.c index 327a00c27ae2..7f538d1085ef 100644 --- a/tools/perf/util/stream.c +++ b/tools/perf/util/stream.c @@ -150,3 +150,14 @@ struct evsel_streams *perf_evlist__create_streams(struct evlist *evlist, return es; } + +struct evsel_streams *evsel_streams_get(struct evsel_streams *es, + int nr_evsel, int evsel_idx) +{ + for (int i = 0; i < nr_evsel; i++) { + if (es[i].evsel_idx == evsel_idx) + return &es[i]; + } + + return NULL; +} diff --git a/tools/perf/util/stream.h b/tools/perf/util/stream.h index a8a0172b4d13..705aa7cde3de 100644 --- a/tools/perf/util/stream.h +++ b/tools/perf/util/stream.h @@ -27,4 +27,7 @@ struct evsel_streams *perf_evlist__create_streams(struct evlist *evlist, int nr_streams_max, enum stream_type type); +struct evsel_streams *evsel_streams_get(struct evsel_streams *es, + int nr_evsel, int evsel_idx); + #endif /* __PERF_STREAM_H */ -- 2.17.1
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