linux-kernel - [PATCH] tools: Optimize the variable with 0 as the return value

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Message-Id: <20230619112047.1966-1-lidong@vivo.com>
Date:   Mon, 19 Jun 2023 19:20:17 +0800
From:   Li Dong <lidong@...o.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Andi Kleen <ak@...ux.intel.com>,
        "Steinar H. Gunderson" <sesse@...gle.com>,
        linux-perf-users@...r.kernel.org (open list:PERFORMANCE EVENTS
        SUBSYSTEM),
        linux-kernel@...r.kernel.org (open list:PERFORMANCE EVENTS SUBSYSTEM)
Cc:     opensource.kernel@...o.com, lidong@...o.com
Subject: [PATCH] tools: Optimize the variable with 0 as the return value

The variable ret is not used, replacing ret with 0 as the return value

Signed-off-by: Li Dong <lidong@...o.com>
---
 tools/perf/util/intel-pt.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index dbf0bc71a63b..a40017458185 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -3398,7 +3398,6 @@ static int intel_pt_text_poke(struct intel_pt *pt, union perf_event *event)
 	struct machine *machine = pt->machine;
 	struct intel_pt_cache_entry *e;
 	u64 offset;
-	int ret = 0;
 
 	addr_location__init(&al);
 	if (!event->text_poke.new_len)
@@ -3439,7 +3438,7 @@ static int intel_pt_text_poke(struct intel_pt *pt, union perf_event *event)
 	}
 out:
 	addr_location__exit(&al);
-	return ret;
+	return 0;
 }
 
 static int intel_pt_process_event(struct perf_session *session,
-- 
2.31.1.windows.1