[PATCH] Removing deprecated strncpy()
From: Kevin Paul Reddy Janagari
Date: Thu Apr 10 2025 - 07:35:46 EST
This patch suggests the replacement of strncpy with strscpy
as per the Documentation/process/deprecated
the strncpy() fails to guarntee NULL termination
since the function adds zero pads, this isn't really convenient
for short strings as it may cause performce issues
strscpy() is a preffered replacement because
it overcomes the limitations of strncpy as mentioned above
Signed-off-by: Kevin Paul Reddy Janagari <kevinpaul468@xxxxxxxxx>
---
arch/s390/boot/printk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/boot/printk.c b/arch/s390/boot/printk.c
index 8cf6331bc060..8f3b2244ef1b 100644
--- a/arch/s390/boot/printk.c
+++ b/arch/s390/boot/printk.c
@@ -158,7 +158,7 @@ static noinline char *strsym(char *buf, void *ip)
p = findsym((unsigned long)ip, &off, &len);
if (p) {
- strncpy(buf, p, MAX_SYMLEN);
+ strscpy(buf, p, MAX_SYMLEN);
/* reserve 15 bytes for offset/len in symbol+0x1234/0x1234 */
p = buf + strnlen(buf, MAX_SYMLEN - 15);
strcpy(p, "+0x");
--
2.39.5