linux-kernel - Re: [PATCH 2/2] net: phy: Provide Module 4 KSZ9477 errata (DS80000754C)

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: <20230831044004.GA17603@pengutronix.de>
Date:   Thu, 31 Aug 2023 06:40:04 +0200
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Lukasz Majewski <lukma@...x.de>
Cc:     "Russell King (Oracle)" <linux@...linux.org.uk>,
        Eric Dumazet <edumazet@...gle.com>,
        Andrew Lunn <andrew@...n.ch>, davem@...emloft.net,
        Woojung Huh <woojung.huh@...rochip.com>,
        Vladimir Oltean <olteanv@...il.com>, Tristram.Ha@...rochip.com,
        Florian Fainelli <f.fainelli@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, UNGLinuxDriver@...rochip.com,
        Heiner Kallweit <hkallweit1@...il.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] net: phy: Provide Module 4 KSZ9477 errata
 (DS80000754C)

Hi Lukasz,

On Wed, Aug 30, 2023 at 06:38:18PM +0200, Lukasz Majewski wrote:
> Hi Oleksij,
 
> The implementation as you suggested seems to work :-)
> 
> The ksz_get_phy_flags() - where the MICREL_NO_EEE is set is executed
> before ksz9477_config_init().
> 
> And then the eee_broken_modes are taken into account.
> 
> # ethtool --show-eee lan1
> EEE Settings for lan1:
>         EEE status: disabled
>         Tx LPI: 0 (us)
>         Supported EEE link modes:  100baseT/Full 
>                                    1000baseT/Full 
>         Advertised EEE link modes:  Not reported
>         Link partner advertised EEE link modes:  Not reported
> 
> I will prepare tomorrow a proper patch.

can you please by the way remove this line:
https://elixir.bootlin.com/linux/v6.5/source/drivers/net/phy/micrel.c#L1803

it is obsolet by eee_broken_modes.

Regards,
Oleksij
-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |