Subject: Re: [net PATCH] net: stmmac: update priv->speed to SPEED_UNKNOWN when link down

From: "Russell King (Oracle)" <[email-masked]>
Date: Wed, 29 May 2024 12:45:38 +0100

On Wed, May 29, 2024 at 06:55:21PM +0800, xiaolei wang wrote:
> On 5/29/24 16:46, Russell King (Oracle) wrote:
> > To me, commit 1f705bc61aee ("net: stmmac: Add support for CBS QDISC")
> > just looks very buggy.
> 
> This makes sense. I think it is necessary to update the parameters after
> linking up.
> 
> Does anyone have a better suggestion?

Any setup that a phylink-based MAC driver does which is dependent on
the negotiated media parameters (e.g. speed, duplex etc) _should_
always be done from the .mac_link_up method.

So, from a phylink perspective, what you propose is the correct and
only way.

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