netdev - Re: [PATCH net-next 0/2] net: phy: sfp: Add single-byte SMBus SFP access

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Z7yEgFR9scO2aRYh@shell.armlinux.org.uk>
Date: Mon, 24 Feb 2025 14:38:56 +0000
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Marek Behún <kabel@...nel.org>
Cc: Andrew Lunn <andrew@...n.ch>,
	Bjørn Mork <bjorn@...k.no>,
	Maxime Chevallier <maxime.chevallier@...tlin.com>,
	davem@...emloft.net, Jakub Kicinski <kuba@...nel.org>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Heiner Kallweit <hkallweit1@...il.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com,
	Florian Fainelli <f.fainelli@...il.com>,
	Köry Maincent <kory.maincent@...tlin.com>,
	Simon Horman <horms@...nel.org>,
	Romain Gantois <romain.gantois@...tlin.com>,
	Antoine Tenart <atenart@...nel.org>
Subject: Re: [PATCH net-next 0/2] net: phy: sfp: Add single-byte SMBus SFP
 access

On Mon, Feb 24, 2025 at 03:32:43PM +0100, Marek Behún wrote:
> On Mon, Feb 24, 2025 at 01:48:19PM +0000, Russell King (Oracle) wrote:
> 
> ...
> 
> > "Please note:
> > This hardware is broken by design. There is nothing that the kernel or
> 
> Doesn't "broken by design" mean "broken intentionally" ?

The point of this part of the discussion is to find a form of words
that folk are happy with, so please feel free to suggest an
alternative.

To put it bluntly, it does come down to "broken by the hardware
engineer not having full knowledge of the requirements of SFP modules
as documented in the SNIA documentation and selecting hardware that
violates some of the requirements."

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!