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Subject: Re: [PATCH] mt76: mt7615: fix wrong length in strncmp
To:     Ryder Lee <ryder.lee@mediatek.com>,
        Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Cc:     Shayne Chen <shayne.chen@mediatek.com>,
        Sean Wang <sean.wang@mediatek.com>,
        Josh Boyer <jwboyer@kernel.org>,
        linux-wireless@vger.kernel.org, linux-mediatek@lists.infradead.org
References: <cee34bac9d6041784a92c5fdbf667c367dc7f968.1580874252.git.ryder.lee@mediatek.com>
From:   Felix Fietkau <nbd@nbd.name>
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Message-ID: <4d166d0c-db0a-fc25-4315-a15bf1002bf8@nbd.name>
Date:   Wed, 5 Feb 2020 09:19:02 +0100
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On 2020-02-05 04:46, Ryder Lee wrote:
> Fix it to proper length.
> 
> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
> ---
>  drivers/net/wireless/mediatek/mt76/mt7615/mcu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
> index 6639f9291721..fbda56342d11 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
> @@ -491,7 +491,7 @@ static int mt7615_load_ram(struct mt7615_dev *dev)
>  		goto out;
>  	}
>  
> -	if (!strncmp(hdr->fw_ver, "2.0", 6))
> +	if (!strncmp(hdr->fw_ver, "2.0", 3))
Do you plan on allowing more characters after the 2.0 and still match?
If not, maybe we should just use sizeof(hdr->fw_ver) as max len.

- Felix