linux-kernel - [PATCH -next] ACPICA: Replace strncpy() with strscpy

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Date: Fri, 15 Dec 2023 15:24:05 +0800
From: xueqin Luo <luoxueqin@...inos.cn>
To: robert.moore@...el.com,
	rafael.j.wysocki@...el.com,
	lenb@...nel.org
Cc: linux-acpi@...r.kernel.org,
	acpica-devel@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	xueqin Luo <luoxueqin@...inos.cn>
Subject: [PATCH -next] ACPICA: Replace strncpy() with strscpy_pad() for dest

While it is safe to use strncpy in this case, the advice is to move to
strscpy_pad[1].

Link: https://www.kernel.org/doc/html/latest/process/deprec:qated.html#strncpy-on-nul-terminated-strings [1]
Signed-off-by: xueqin Luo <luoxueqin@...inos.cn>
---
 drivers/acpi/acpica/utnonansi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/acpi/acpica/utnonansi.c b/drivers/acpi/acpica/utnonansi.c
index ff0802ace19b..3a7952be6545 100644
--- a/drivers/acpi/acpica/utnonansi.c
+++ b/drivers/acpi/acpica/utnonansi.c
@@ -168,8 +168,7 @@ void acpi_ut_safe_strncpy(char *dest, char *source, acpi_size dest_size)
 {
 	/* Always terminate destination string */
 
-	strncpy(dest, source, dest_size);
-	dest[dest_size - 1] = 0;
+	strscpy_pad(dest, source, dest_size);
 }
 
 #endif
-- 
2.34.1