linux-kernel - [PATCH] genirq/proc:Replace snprintf with strscpy

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Message-ID: <20260203112021.1965001-1-qiubowen523@gmail.com>
Date: Tue,  3 Feb 2026 19:20:21 +0800
From: qiubowen <qiubowen523@...il.com>
To: tglx@...nel.org
Cc: linux-kernel@...r.kernel.org,
	qiubowen <qiubowen523@...il.com>
Subject: [PATCH] genirq/proc:Replace snprintf with strscpy

Replace snprintf with strscpy for better performance.

Signed-off-by: qiubowen <qiubowen523@...il.com>
---
 kernel/irq/proc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 77258eafbf63..6aa974d2a01e 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -12,6 +12,7 @@
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 #include <linux/mutex.h>
+#include <linux/string.h>
 
 #include "internals.h"
 
@@ -317,7 +318,7 @@ void register_handler_proc(unsigned int irq, struct irqaction *action)
 	if (!desc->dir || action->dir || !action->name || !name_unique(irq, action))
 		return;
 
-	snprintf(name, MAX_NAMELEN, "%s", action->name);
+	strscpy(name, action->name, MAX_NAMELEN);
 
 	/* create /proc/irq/1234/handler/ */
 	action->dir = proc_mkdir(name, desc->dir);
-- 
2.43.0