linux-kernel - Re: [net-next RFC PATCH 0/4] net: dsa: Add Airoha AN8855 support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZxZhADBe6UtdCTsu@shell.armlinux.org.uk>
Date: Mon, 21 Oct 2024 15:11:12 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Vladimir Oltean <olteanv@...il.com>
Cc: Christian Marangi <ansuelsmth@...il.com>,
	Arınç ÜNAL <arinc.unal@...nc9.com>,
	Daniel Golle <daniel@...rotopia.org>,
	DENG Qingfang <dqfext@...il.com>,
	Sean Wang <sean.wang@...iatek.com>, Andrew Lunn <andrew@...n.ch>,
	Florian Fainelli <f.fainelli@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [net-next RFC PATCH 0/4] net: dsa: Add Airoha AN8855 support

On Mon, Oct 21, 2024 at 04:36:05PM +0300, Vladimir Oltean wrote:
> On Mon, Oct 21, 2024 at 03:01:55PM +0200, Christian Marangi wrote:
> > It's conceptually similar to mediatek switch but register and bits
> > are different.
> 
> Is it impractical to use struct regmap_field to abstract those
> differences away and reuse the mt7530 driver's control flow? What is the
> relationship between the Airoha and Mediatek IP anyway? The mt7530
> maintainers should also be consulted w.r.t. whether code sharing is in
> the common interest (I copied them).

That thought crossed my mind while reviewing patch 3. I compared the
PMCR and PMSR, a lot of the bits are in completely different places
between the two. I didn't check further, but I got the feeling that
would invite more complexity.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!