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Message-ID: <857037f5-6e15-47db-84db-5396dc70ec2f@gmail.com>
Date:   Mon, 9 Oct 2023 13:33:48 -0700
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Subject: Re: [PATCH] net: dsa: lantiq_gswip: replace deprecated strncpy with
 ethtool_sprintf
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To:     Justin Stitt <justinstitt@google.com>,
        Hauke Mehrtens <hauke@hauke-m.de>,
        Andrew Lunn <andrew@lunn.ch>,
        Vladimir Oltean <olteanv@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>
Cc:     netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-hardening@vger.kernel.org
References: <20231009-strncpy-drivers-net-dsa-lantiq_gswip-c-v1-1-d55a986a14cc@google.com>
From:   Florian Fainelli <f.fainelli@gmail.com>
In-Reply-To: <20231009-strncpy-drivers-net-dsa-lantiq_gswip-c-v1-1-d55a986a14cc@google.com>
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On 10/9/23 11:24, Justin Stitt wrote:
> `strncpy` is deprecated for use on NUL-terminated destination strings
> [1] and as such we should prefer more robust and less ambiguous string
> interfaces.
> 
> ethtool_sprintf() is designed specifically for get_strings() usage.
> Let's replace strncpy in favor of this more robust and easier to
> understand interface.
> 
> Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
> Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
> Link: https://github.com/KSPP/linux/issues/90
> Cc: linux-hardening@vger.kernel.org
> Signed-off-by: Justin Stitt <justinstitt@google.com>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian