linux-kernel - Re: [PATCH v2 3/3] ARM: orion5x: Add D-Link DNS-323 based on Device Tree

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Date:   Fri, 23 Sep 2022 11:24:35 +0200
From:   "Arnd Bergmann" <arnd@...db.de>
To:     "Mauri Sandberg" <maukka@....kapsi.fi>
Cc:     "Rob Herring" <robh+dt@...nel.org>,
        krzysztof.kozlowski+dt@...aro.org,
        "Olof Johansson" <olof@...om.net>, "Andrew Lunn" <andrew@...n.ch>,
        "Sebastian Hesselbarth" <sebastian.hesselbarth@...il.com>,
        "Gregory Clement" <gregory.clement@...tlin.com>,
        "Russell King" <linux@...linux.org.uk>,
        Pali Rohár <pali@...nel.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 3/3] ARM: orion5x: Add D-Link DNS-323 based on Device Tree

On Fri, Sep 23, 2022, at 11:13 AM, maukka@....kapsi.fi wrote:
> On 23.9.2022 00:39, Arnd Bergmann wrote:
>> Can you use simple_strntoull() to parse the address into a u64 instead?
>> 
> Nice idea. Its current replacement seems to be kstrtoull().

Right.

> I'll have to do
> it byte by byte, right? Or what do you have in mind with 64bit unsigned?

I misread your code and assumed it was stored as a 12-digit
hexadecimal number, but you are right: with the colons you still
need to iterate the bytes.

I looked a little further and found the mac_pton() function
that I think does exactly what you need.

      Arnd