netdev - Re: [PATCH] net: phy: phylink: fix SFP interface autodetection

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Message-ID: <20180917151230.GF30658@n2100.armlinux.org.uk>
Date:   Mon, 17 Sep 2018 16:12:30 +0100
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Baruch Siach <baruch@...s.co.il>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        netdev@...r.kernel.org,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        Gregory CLEMENT <gregory.clement@...tlin.com>
Subject: Re: [PATCH] net: phy: phylink: fix SFP interface autodetection

On Mon, Sep 17, 2018 at 05:19:57PM +0300, Baruch Siach wrote:
> When the switching to the SFP detected link mode update the main
> link_interface field as well. Otherwise, the link fails to come up when
> the configured 'phy-mode' defers from the SFP detected mode.
> 
> This fixes 1GB SFP module link up on eth3 of the Macchiatobin board that
> is configured in the DT to "2500base-x" phy-mode.

link_interface isn't supposed to track the SFP link mode.  In any case,
this is only used when a PHY is attached.  For a PHY on a SFP,
phylink_connect_phy() should be using link_config.interface and not
link_interface there.

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