linux-hardening - [PATCH] ARM: 8611/1: l2x0: replace snprintf with sysfs

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Message-ID: <ZxDbVt6QGzXRBn2v@mail.google.com>
Date: Thu, 17 Oct 2024 22:39:34 +1300
From: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@...il.com>
To: linux@...linux.org.uk, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: paulo.miguel.almeida.rodenas@...il.com, linux-hardening@...r.kernel.org
Subject: [PATCH] ARM: 8611/1: l2x0: replace snprintf with sysfs_emit helper
 function

sysfs_emit() helper function should be used when formatting the value to
be returned to user space.

This patch replaces open-coded snprint with sysfs_emit() helper in
sysfs .show() callbacks.

Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@...il.com>
---
 arch/arm/mm/cache-l2x0-pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/cache-l2x0-pmu.c b/arch/arm/mm/cache-l2x0-pmu.c
index 993fefdc167a..a9bd05b82003 100644
--- a/arch/arm/mm/cache-l2x0-pmu.c
+++ b/arch/arm/mm/cache-l2x0-pmu.c
@@ -343,7 +343,7 @@ static ssize_t l2x0_pmu_event_show(struct device *dev,
 	struct l2x0_event_attribute *lattr;
 
 	lattr = container_of(attr, typeof(*lattr), attr);
-	return snprintf(buf, PAGE_SIZE, "config=0x%x\n", lattr->config);
+	return sysfs_emit(buf, "config=0x%x\n", lattr->config);
 }
 
 static umode_t l2x0_pmu_event_attr_is_visible(struct kobject *kobj,
-- 
2.47.0