netdev - Re: [PATCH RFC ???net???] net: phy: realtek: fix wake-on-lan support

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Message-ID: <aIo_GW9zvPzLd0zs@shell.armlinux.org.uk>
Date: Wed, 30 Jul 2025 16:49:45 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>
Cc: Heiner Kallweit <hkallweit1@...il.com>,
	Daniel Braunwarth <daniel.braunwarth@...a.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Gatien CHEVALLIER <gatien.chevallier@...s.st.com>,
	Jakub Kicinski <kuba@...nel.org>, Jon Hunter <jonathanh@...dia.com>,
	netdev@...r.kernel.org, Paolo Abeni <pabeni@...hat.com>,
	Thierry Reding <treding@...dia.com>
Subject: Re: [PATCH RFC ???net???] net: phy: realtek: fix wake-on-lan support

On Wed, Jul 30, 2025 at 04:35:45PM +0200, Andrew Lunn wrote:
> > Not all interrupts are capable of waking the system up, and there is
> > no way for a PHY to know whether it's connected to an interrupt that
> > has that ability.
> 
> I was wondering about that. And maybe that enable_irq_wake() returns
> -EOPNOTSUPP if it cannot actually wake the system? But there is no
> documentation about that.

,,, and that means we can't use the wakeirq helpers.

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