linux-kernel - [PATCH linux-next] perf stat: use sysfs

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Date:   Tue, 22 Nov 2022 20:11:00 +0800 (CST)
From:   <yang.yang29@....com.cn>
To:     <mingo@...hat.com>
Cc:     <acme@...nel.org>, <mark.rutland@....com>,
        <alexander.shishkin@...ux.intel.com>, <jolsa@...nel.org>,
        <namhyung@...nel.org>, <irogers@...gle.com>, <james.clark@....com>,
        <kan.liang@...ux.intel.com>, <zhengjun.xing@...ux.intel.com>,
        <cjense@...gle.com>, <linux-perf-users@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <xu.panda@....com.cn>,
        <yang.yang29@....com.cn>
Subject: [PATCH linux-next] perf stat: use sysfs_streq() instead of strncmp()

From: Xu Panda <xu.panda@....com.cn>

Replace the open-code with sysfs_streq().

Signed-off-by: Xu Panda <xu.panda@....com.cn>
Signed-off-by: Yang Yang <yang.yang29@....com>
---
 tools/perf/util/stat-display.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index f5501760ff2e..1fd9f7e9d2a1 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -463,7 +463,7 @@ static bool valid_only_metric(const char *unit)
 static const char *fixunit(char *buf, struct evsel *evsel,
 			   const char *unit)
 {
-	if (!strncmp(unit, "of all", 6)) {
+	if (sysfs_streq(unit, "of all")) {
 		snprintf(buf, 1024, "%s %s", evsel__name(evsel),
 			 unit);
 		return buf;
@@ -767,8 +767,7 @@ static void uniquify_event_name(struct evsel *counter)
 	int ret = 0;

 	if (counter->uniquified_name || counter->use_config_name ||
-	    !counter->pmu_name || !strncmp(counter->name, counter->pmu_name,
-					   strlen(counter->pmu_name)))
+	    !counter->pmu_name || sysfs_streq(counter->name, counter->pmu_name))
 		return;

 	config = strchr(counter->name, '/');
-- 
2.15.2