netdev - Re: [PATCH net-next v2 1/1] net: dsa: fix fixed-link port registration

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Date:   Sun, 11 Aug 2019 05:39:10 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Marek Behún <marek.behun@....cz>
Cc:     netdev@...r.kernel.org, Heiner Kallweit <hkallweit1@...il.com>,
        Sebastian Reichel <sebastian.reichel@...labora.co.uk>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S . Miller" <davem@...emloft.net>
Subject: Re: [PATCH net-next v2 1/1] net: dsa: fix fixed-link port
 registration

On Sun, Aug 11, 2019 at 05:18:57AM +0200, Marek Behún wrote:
> Commit 88d6272acaaa ("net: phy: avoid unneeded MDIO reads in
> genphy_read_status") broke fixed link DSA port registration in
> dsa_port_fixed_link_register_of: the genphy_read_status does not do what
> it is supposed to and the following adjust_link is given wrong
> parameters.

Hi Marek

Which parameters are incorrect?

In fixed_phy.c, __fixed_phy_register() there is:

        /* propagate the fixed link values to struct phy_device */
        phy->link = status->link;
        if (status->link) {
                phy->speed = status->speed;
                phy->duplex = status->duplex;
                phy->pause = status->pause;
                phy->asym_pause = status->asym_pause;
        }

Are we not initialising something? Or is the initialisation done here
getting reset sometime afterwards?

Thanks
	Andrew