netdev - Re: [PATCH net] net: phy: skip LED triggers on PHYs on SFP modules

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Date: Fri, 15 Dec 2023 16:39:07 +0100
From: Maxime Chevallier <maxime.chevallier@...tlin.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: "Russell King (Oracle)" <linux@...linux.org.uk>, Paolo Abeni
 <pabeni@...hat.com>, Daniel Golle <daniel@...rotopia.org>, Heiner Kallweit
 <hkallweit1@...il.com>, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: phy: skip LED triggers on PHYs on SFP modules

Hi all,

On Fri, 15 Dec 2023 10:59:28 +0100
Maxime Chevallier <maxime.chevallier@...tlin.com> wrote:

> Hi Andrew,
> 
> On Fri, 15 Dec 2023 10:46:18 +0100
> Andrew Lunn <andrew@...n.ch> wrote:
> > So, if i'm reading this patch correctly, it only affects PHYs within
> > SFPs.
> > 
> > The discussion went off on a tangent and also talked about media
> > converter PHYs, but from my reading of this patch, they are unaffected
> > by this patch. Do they however also suffer from this deadlock? Anybody
> > tested that?  
> 

I gave it a try with lockdep on a macchiatobin, but I couldn't even
reproduce the original issue (tested with the tip of net-next and net),
so I can't tell if the media-converter PHYs are affected as well. I got
no lockdep warnings regarding either paths.

Maxime