netdev - Re: [PATCH 2/2] net: ks8851: Register MDIO bus and the internal PHY

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Date:   Sun, 3 Jan 2021 13:58:09 +0100
From:   Marek Vasut <marex@...x.de>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     netdev@...r.kernel.org, Heiner Kallweit <hkallweit1@...il.com>,
        Lukas Wunner <lukas@...ner.de>
Subject: Re: [PATCH 2/2] net: ks8851: Register MDIO bus and the internal PHY

On 12/30/20 5:00 PM, Andrew Lunn wrote:
>> +static int ks8851_mdio_read(struct mii_bus *bus, int phy_id, int reg)
>> +{
>> +	struct ks8851_net *ks = bus->priv;
>> +
>> +	if (phy_id != 0)
>> +		return 0xffffffff;
>> +
> 
> Please check for C45 and return -EOPNOTSUPP.

The ks8851_reg_read() does all the register checking already.