netdev - Re: [PATCH net 0/3] add property "nvmem_macaddr

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Message-ID: <20190513082625.GA14498@ibawizard.net>
Date:   Mon, 13 May 2019 11:35:39 +0200
From:   ynezz <ynezz@...wizard.net>
To:     Andy Duan <fugang.duan@....com>
Cc:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Petr Štetiar <ynezz@...e.cz>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "john@...ozen.org" <john@...ozen.org>,
        "bgolaszewski@...libre.com" <bgolaszewski@...libre.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Alban Bedel <albeu@...e.fr>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH net 0/3] add property "nvmem_macaddr_swap" to swap
 macaddr bytes order

Andy Duan <fugang.duan@....com> [2019-05-13 03:38:32]:

> From: Maxime Ripard <maxime.ripard@...tlin.com> Sent: Friday, May 10, 2019 7:32 PM
> > 
> > It looks to me that it should be abstracted away by the nvmem interface and
> > done at the provider level, not the customer.
> > 
> If to implement add above features like Petr Štetiar described, it should be abstracted
> In nvmem core driver.

Maxime made it clear, that network layer as a consumer of the nvmem provider
doesn't need to know about this byte order swapping details, so this byte
order swapping should be implemented in nvmem as well, as a bonus it doesn't
matter if you're going to swap 3, 6 or whatever other amount of bytes
described by the reg property, so this functionality could be reused which is
always good.

-- ynezz