netdev - Re: [PATCH net-next v5 13/17] net: pse-pd: Use regulator framework within PSE framework

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Message-ID: <20240322113950.27d35376@kmaincent-XPS-13-7390>
Date: Fri, 22 Mar 2024 11:39:50 +0100
From: Kory Maincent <kory.maincent@...tlin.com>
To: Oleksij Rempel <o.rempel@...gutronix.de>
Cc: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
 <pabeni@...hat.com>, Jonathan Corbet <corbet@....net>, Luis Chamberlain
 <mcgrof@...nel.org>, Russ Weight <russ.weight@...ux.dev>, Greg
 Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki"
 <rafael@...nel.org>, Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski
 <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
 Mark Brown <broonie@...nel.org>, Frank Rowand <frowand.list@...il.com>,
 Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>,
 Russell King <linux@...linux.org.uk>, Thomas Petazzoni
 <thomas.petazzoni@...tlin.com>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
 devicetree@...r.kernel.org, Dent Project <dentproject@...uxfoundation.org>
Subject: Re: [PATCH net-next v5 13/17] net: pse-pd: Use regulator framework
 within PSE framework

Hello Oleksij,

On Thu, 21 Mar 2024 17:43:14 +0100
Oleksij Rempel <o.rempel@...gutronix.de> wrote:

> On Thu, Mar 21, 2024 at 05:15:24PM +0100, Kory Maincent wrote:
> > Hello Oleksij,
> > Sorry, I forgot to reply about this.
> > This is specific to pse_regulator driver. Could we tackle this change in
> > another patch series when the current patch series got applied?
> > Also I don't have the hardware to test it.  
> 
> ACK, no problem.

I have a question unrelated to this.
Why do you add refcount on the pse_control struct?
The pse control is related to the RJ45 port. Each port is exclusively related
to one pse control.
Shouldn't we return an error in case of two get of the same pse control index?
Do you see use cases where a pse control could be get two times?

Regards,
-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com