netdev - Re: [PATCH net-next v4 4/5] dpaa2-eth: add MAC/PHY support through phylink

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Message-ID: <20191117170101.GJ1344@shell.armlinux.org.uk>
Date:   Sun, 17 Nov 2019 17:01:01 +0000
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Ioana Ciornei <ioana.ciornei@....com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        laurentiu.tudor@....com, andrew@...n.ch, f.fainelli@...il.com
Subject: Re: [PATCH net-next v4 4/5] dpaa2-eth: add MAC/PHY support through
 phylink

On Thu, Oct 31, 2019 at 01:18:31AM +0200, Ioana Ciornei wrote:
> +static const struct phylink_mac_ops dpaa2_mac_phylink_ops = {
> +	.validate = dpaa2_mac_validate,

I notice you haven't provided a mac_link_state function - this is a
mandatory function, which should read the settings from the PCS (it
ought to be renamed - it has its origin in Marvell's NETA controller
which didn't distinguish.)

Without this function, phylink can provoke an oops, particularly when
a SFP module has been inserted.

If you don't want to populate it, just provide a stub function.

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