linux-kernel - [PATCH] mm/dmapool: switch from strlcpy to strscpy

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Message-Id: <1613962050-14188-1-git-send-email-daizhiyuan@phytium.com.cn>
Date:   Mon, 22 Feb 2021 10:47:30 +0800
From:   Zhiyuan Dai <daizhiyuan@...tium.com.cn>
To:     akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Zhiyuan Dai <daizhiyuan@...tium.com.cn>
Subject: [PATCH] mm/dmapool: switch from strlcpy to strscpy

strlcpy is marked as deprecated in Documentation/process/deprecated.rst,
and there is no functional difference when the caller expects truncation
(when not checking the return value). strscpy is relatively better as it
also avoids scanning the whole source string.

Signed-off-by: Zhiyuan Dai <daizhiyuan@...tium.com.cn>
---
 mm/dmapool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/dmapool.c b/mm/dmapool.c
index a97c972..38cf2a7 100644
--- a/mm/dmapool.c
+++ b/mm/dmapool.c
@@ -156,7 +156,7 @@ struct dma_pool *dma_pool_create(const char *name, struct device *dev,
 	if (!retval)
 		return retval;
 
-	strlcpy(retval->name, name, sizeof(retval->name));
+	strscpy(retval->name, name, sizeof(retval->name));
 
 	retval->dev = dev;
 
-- 
1.8.3.1