linux-kernel - Re: [PATCH net-next v2] net: phy: dp83826: disable WOL at init

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Date: Mon, 26 Feb 2024 16:37:55 +0000
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Catalin Popescu <catalin.popescu@...ca-geosystems.com>
Cc: andrew@...n.ch, hkallweit1@...il.com, davem@...emloft.net,
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	bsp-development.geo@...ca-geosystems.com, m.felsch@...gutronix.de
Subject: Re: [PATCH net-next v2] net: phy: dp83826: disable WOL at init

On Mon, Feb 26, 2024 at 05:23:39PM +0100, Catalin Popescu wrote:
> Commit d1d77120bc28 ("net: phy: dp83826: support TX data voltage tuning")
> introduced a regression in that WOL is not disabled by default for DP83826.
> WOL should normally be enabled through ethtool.
> 
> Fixes: d1d77120bc28 ("net: phy: dp83826: support TX data voltage tuning")
> Signed-off-by: Catalin Popescu <catalin.popescu@...ca-geosystems.com>

It seems rather interesting that WoL is disabled in the config_init()
method - because this will be called when the PHY is attached to its
network driver (reasonable I guess) but also at resume time - which
means one can't just set the WoL mode once and that status will be
preserved.

Maybe Andrew can clarify, but I thought once WoL was configured, that
configuration should remain until the system is rebooted.

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