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Date:   Tue, 17 Oct 2023 08:25:35 +0200
From:   Oleksij Rempel <o.rempel@pengutronix.de>
To:     Andrew Lunn <andrew@lunn.ch>
Cc:     "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Vladimir Oltean <olteanv@gmail.com>,
        Woojung Huh <woojung.huh@microchip.com>,
        Arun Ramadoss <arun.ramadoss@microchip.com>,
        Conor Dooley <conor+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Rob Herring <robh+dt@kernel.org>, kernel@pengutronix.de,
        linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        UNGLinuxDriver@microchip.com,
        "Russell King (Oracle)" <linux@armlinux.org.uk>,
        devicetree@vger.kernel.org
Subject: Re: [PATCH net-next v4 4/9] net: dsa: microchip: ksz9477: add Wake
 on LAN support
Message-ID: <20231017062535.GC3539182@pengutronix.de>
References: <20231016141256.2011861-1-o.rempel@pengutronix.de>
 <20231016141256.2011861-5-o.rempel@pengutronix.de>
 <18c20ed3-c117-4124-af3c-33df562b7f02@lunn.ch>
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On Mon, Oct 16, 2023 at 04:59:24PM +0200, Andrew Lunn wrote:
> > +int ksz9477_set_wol(struct ksz_device *dev, int port,
> > +		    struct ethtool_wolinfo *wol)
> > +{
> > +	u8 pme_conf, pme_ctrl = 0;
> > +	int ret;
> > +
> > +	if (wol->wolopts & ~WAKE_PHY)
> > +		return -EINVAL;
> 
> EOPNOTSUPP might be better here. I'm assuming there is no other way
> WoL can be supported, since this is a combined MAC/PHY device. 

EOPNOTSUPP is typically returned when WoL isn’t supported at all. In
this instance, WoL is supported but an invalid option has been given.
Nonetheless, I don’t have a strong opinion on this matter currently, and
am ready to go with whichever option is recommended.

Regards,
Oleksij
-- 
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