linux-kernel - [PATCH] thermal: Convert to use sysfs_emit

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Date:   Thu, 8 Dec 2022 17:06:29 +0800 (CST)
From:   <ye.xingchen@....com.cn>
To:     <rafael@...nel.org>
Cc:     <daniel.lezcano@...aro.org>, <amitk@...nel.org>,
        <rui.zhang@...el.com>, <linux-pm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] thermal: Convert to use sysfs_emit_at() API

From: ye xingchen <ye.xingchen@....com.cn>

Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.

Signed-off-by: ye xingchen <ye.xingchen@....com.cn>
---
 drivers/thermal/thermal_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index f17ab2316dbd..91d40ce62c92 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -229,10 +229,9 @@ int thermal_build_list_of_policies(char *buf)
 	mutex_lock(&thermal_governor_lock);

 	list_for_each_entry(pos, &thermal_governor_list, governor_list) {
-		count += scnprintf(buf + count, PAGE_SIZE - count, "%s ",
-				   pos->name);
+		count += sysfs_emit_at(buf, count, "%s ", pos->name);
 	}
-	count += scnprintf(buf + count, PAGE_SIZE - count, "\n");
+	count += sysfs_emit_at(buf, count, "\n");

 	mutex_unlock(&thermal_governor_lock);

-- 
2.25.1