netdev - [PATCH net-next] brcm80211: use strscpy() to instead of strncpy()

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Message-ID: <202212231037210142246@zte.com.cn>
Date:   Fri, 23 Dec 2022 10:37:21 +0800 (CST)
From:   <yang.yang29@....com.cn>
To:     <aspriel@...il.com>
Cc:     <franky.lin@...adcom.com>, <hante.meuleman@...adcom.com>,
        <kvalo@...nel.org>, <davem@...emloft.net>, <edumazet@...gle.com>,
        <kuba@...nel.org>, <pabeni@...hat.com>,
        <linux-wireless@...r.kernel.org>,
        <brcm80211-dev-list.pdl@...adcom.com>,
        <sha-cyfmac-dev-list@...ineon.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <xu.panda@....com.cn>,
        <yang.yang29@....com.cn>
Subject: [PATCH net-next] brcm80211: use strscpy() to instead of strncpy()

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

The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.

Signed-off-by: Xu Panda <xu.panda@....com.cn>
Signed-off-by: Yang Yang <yang.yang29@....com>
---
 drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c
index b7df576bb84d..66336c87b0d9 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c
@@ -584,8 +584,7 @@ struct dma_pub *dma_attach(char *name, struct brcms_c_info *wlc,
 		      rxextheadroom, nrxpost, rxoffset, txregbase, rxregbase);

 	/* make a private copy of our callers name */
-	strncpy(di->name, name, MAXNAMEL);
-	di->name[MAXNAMEL - 1] = '\0';
+	strscpy(di->name, name, MAXNAMEL);

 	di->dmadev = core->dma_dev;

-- 
2.15.2