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Message-Id: <20240314100402.1326582-1-lizhijian@fujitsu.com>
Date: Thu, 14 Mar 2024 18:04:01 +0800
From: Li Zhijian <lizhijian@...itsu.com>
To: linux-kernel@...r.kernel.org
Cc: Li Zhijian <lizhijian@...itsu.com>,
John Stultz <jstultz@...gle.com>,
Thomas Gleixner <tglx@...utronix.de>,
Stephen Boyd <sboyd@...nel.org>
Subject: [PATCH 1/2] clocksource: Convert sprintf/snprintf to sysfs_emit
Per filesystems/sysfs.rst, show() should only use sysfs_emit()
or sysfs_emit_at() when formatting the value to be returned to user space.
coccinelle complains that there are still a couple of functions that use
snprintf(). Convert them to sysfs_emit().
sprintf() will be converted as weel if they have.
Generally, this patch is generated by
make coccicheck M=<path/to/file> MODE=patch \
COCCI=scripts/coccinelle/api/device_attr_show.cocci
No functional change intended
CC: John Stultz <jstultz@...gle.com>
CC: Thomas Gleixner <tglx@...utronix.de>
CC: Stephen Boyd <sboyd@...nel.org>
Signed-off-by: Li Zhijian <lizhijian@...itsu.com>
---
This is a part of the work "Fix coccicheck device_attr_show warnings"[1]
Split them per subsystem so that the maintainer can review it easily
[1] https://lore.kernel.org/lkml/20240116041129.3937800-1-lizhijian@fujitsu.com/
---
kernel/time/clocksource.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index e5b260aa0e02..02abca6259b3 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -1336,7 +1336,7 @@ static ssize_t current_clocksource_show(struct device *dev,
ssize_t count = 0;
mutex_lock(&clocksource_mutex);
- count = snprintf(buf, PAGE_SIZE, "%s\n", curr_clocksource->name);
+ count = sysfs_emit(buf, "%s\n", curr_clocksource->name);
mutex_unlock(&clocksource_mutex);
return count;
--
2.29.2
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