linux-kernel - Re: [RFC net-next PATCH 06/16] net: phylink: Add function for optionally adding a PCS

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Date:   Tue, 5 Oct 2021 10:51:38 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Sean Anderson <sean.anderson@...o.com>
Cc:     netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, linux-kernel@...r.kernel.org,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>
Subject: Re: [RFC net-next PATCH 06/16] net: phylink: Add function for
 optionally adding a PCS

On Mon, Oct 04, 2021 at 03:15:17PM -0400, Sean Anderson wrote:
> This adds a function to set the PCS only if there is not one currently
> set. The intention here is to allow MAC drivers to have a "default" PCS
> (such as an internal one) which may be used when one has not been set
> via the device tree. This allows for backwards compatibility for cases
> where a PCS was automatically attached if necessary.

I'm not sure I entirely like this approach. Why can't the network
driver check for the pcs-handle property and avoid using its
"default" if present?

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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