netdev - Re: [PATCH RFC net-next 03/14] net: phylink: add support for PCS link change notifications

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Date: Tue, 23 Jan 2024 14:46:15 -0500
From: Sean Anderson <sean.anderson@...o.com>
To: rmk+kernel@...linux.org.uk
Cc: Landen.Chao@...iatek.com, UNGLinuxDriver@...rochip.com,
 alexandre.belloni@...tlin.com, andrew@...n.ch,
 angelogioacchino.delregno@...labora.com, arinc.unal@...nc9.com,
 claudiu.manoil@....com, daniel@...rotopia.org, davem@...emloft.net,
 dqfext@...il.com, edumazet@...gle.com, f.fainelli@...il.com,
 hkallweit1@...il.com, kuba@...nel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org, matthias.bgg@...il.com,
 netdev@...r.kernel.org, olteanv@...il.com, pabeni@...hat.com,
 sean.wang@...iatek.com
Subject: Re: [PATCH RFC net-next 03/14] net: phylink: add support for PCS link
 change notifications

Hi Russell,

Does there need to be any locking when calling phylink_pcs_change? I
noticed that you call it from threaded IRQ context in [1]. Can that race
with phylink_major_config?

--Sean

[1] https://lore.kernel.org/all/E1qJruX-00Gkk8-RY@rmk-PC.armlinux.org.uk/