netdev - Re: [PATCH] brcmfmac: replace strncpy() by strscpy()

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Message-ID: <894851e7-f057-4789-f9af-f098a968d713@broadcom.com>
Date:   Fri, 23 Aug 2019 10:18:13 +0200
From:   Arend Van Spriel <arend.vanspriel@...adcom.com>
To:     Xulin Sun <xulin.sun@...driver.com>, kvalo@...eaurora.org
Cc:     stefan.wahren@...e.com, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, brcm80211-dev-list@...ress.com,
        brcm80211-dev-list.pdl@...adcom.com,
        linux-wireless@...r.kernel.org, franky.lin@...adcom.com,
        hante.meuleman@...adcom.com, chi-hsien.lin@...ress.com,
        wright.feng@...ress.com, davem@...emloft.net,
        stanley.hsu@...ress.com
Subject: Re: [PATCH] brcmfmac: replace strncpy() by strscpy()

On 8/23/2019 9:47 AM, Xulin Sun wrote:
> The strncpy() may truncate the copied string,
> replace it by the safer strscpy().
> 
> To avoid below compile warning with gcc 8.2:
> 
> drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:In function 'brcmf_vndr_ie':
> drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:4227:2:
> warning: 'strncpy' output truncated before terminating nul copying 3 bytes from a string of the same length [-Wstringop-truncation]
>    strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
>    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Acked-by: Arend van Spriel <arend.vanspriel@...adcom.com>
> Signed-off-by: Xulin Sun <xulin.sun@...driver.com>
> ---
>   drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 4 +---
>   1 file changed, 1 insertion(+), 3 deletions(-)