linux-kernel - [PATCH v4 2/7] perf util: Get the evsel_streams by evsel

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200526060920.26490-3-yao.jin@linux.intel.com>
Date:   Tue, 26 May 2020 14:09:15 +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>
---
 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