linux-kernel - Re: [PATCH v1 0/2] mac_pton: support more MAC address formats

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Message-ID: <ZRwiYOH8wsNqPmED@kernel.org>
Date:   Tue, 3 Oct 2023 16:17:04 +0200
From:   Simon Horman <horms@...nel.org>
To:     Michael Pratt <mcpratt@...tonmail.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Rafal Milecki <zajec5@...il.com>,
        Christian Marangi <ansuelsmth@...il.com>
Subject: Re: [PATCH v1 0/2] mac_pton: support more MAC address formats

On Mon, Oct 02, 2023 at 11:39:55PM +0000, Michael Pratt wrote:
> Currently, mac_pton() strictly requires the standard ASCII MAC address format
> with colons as the delimiter, however,
> some hardware vendors don't store the address like that.
> 
> If there is no delimiter, one could use strtoul()
> but that would leave out important checks to make sure
> that each character in the string is hexadecimal.
> 
> This series adds support for other delimiters
> and lack of any delimiter to the mac_pton() function.
> 
> Tested with Openwrt on a MIPS system (ar9344).

Hi Michael,

I am wondering if you considered a different approach where,
via parameters and/or new helpers, callers can specify the
delimiter, or absence thereof.