linux-kernel - [PATCH linux-next] m68k: use strscpy() to instead of strncpy()

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Message-ID: <202212031410566533649@zte.com.cn>
Date:   Sat, 3 Dec 2022 14:10:56 +0800 (CST)
From:   <yang.yang29@....com.cn>
To:     <geert@...ux-m68k.org>
Cc:     <gerg@...ux-m68k.org>, <linux-m68k@...ts.linux-m68k.org>,
        <linux-kernel@...r.kernel.org>, <xu.panda@....com.cn>,
        <yang.yang29@....com.cn>
Subject: [PATCH linux-next] m68k: use strscpy() to instead of strncpy()

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

The implementation of strscpy() is more robust and safer.

Signed-off-by: Xu Panda <xu.panda@....com.cn>
Signed-off-by: Yang Yang <yang.yang29@....com>
---
 arch/m68k/kernel/setup_no.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c
index cb6def585851..37fb663559b4 100644
--- a/arch/m68k/kernel/setup_no.c
+++ b/arch/m68k/kernel/setup_no.c
@@ -90,8 +90,7 @@ void __init setup_arch(char **cmdline_p)
 	config_BSP(&command_line[0], sizeof(command_line));

 #if defined(CONFIG_BOOTPARAM)
-	strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line));
-	command_line[sizeof(command_line) - 1] = 0;
+	strscpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line));
 #endif /* CONFIG_BOOTPARAM */

 	process_uboot_commandline(&command_line[0], sizeof(command_line));
-- 
2.15.2