netdev - Re: [PATCH net v2 0/2] Fix 'ethtool --show-eee' during initial stage

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: <403be2f6-bab1-4a63-bad4-c7eac1e572ee@gmail.com>
Date: Fri, 15 Nov 2024 14:41:54 +0100
From: Heiner Kallweit <hkallweit1@...il.com>
To: Choong Yong Liang <yong.liang.choong@...ux.intel.com>,
 Andrew Lunn <andrew@...n.ch>, Russell King <linux@...linux.org.uk>,
 "David S . Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>,
 Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Jose Abreu <joabreu@...opsys.com>,
 Maxime Coquelin <mcoquelin.stm32@...il.com>,
 Oleksij Rempel <o.rempel@...gutronix.de>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-stm32@...md-mailman.stormreply.com,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH net v2 0/2] Fix 'ethtool --show-eee' during initial stage

On 15.11.2024 12:11, Choong Yong Liang wrote:
> From: Choong Yong Liang <yong.liang.choong@...el.com>
> 
> When the MAC boots up with a Marvell PHY and phy_support_eee() is implemented,
> the 'ethtool --show-eee' command shows that EEE is enabled, but in actuality,
> the driver side is disabled. If we try to enable EEE through
> 'ethtool --set-eee' for a Marvell PHY, nothing happens because the eee_cfg
> matches the setting required to enable EEE in ethnl_set_eee().
> 
> This patch series will remove phydev->eee_enabled and replace it with
> eee_cfg.eee_enabled. When performing genphy_c45_an_config_eee_aneg(), it
> will follow the master configuration to have software and hardware in sync,
> allowing 'ethtool --show-eee' to display the correct value during the
> initial stage.
> 
> v2 changes:
>  - Implement the prototype suggested by Russell
>  - Check EEE before calling phy_support_eee()
> 
> Thanks to Russell for the proposed prototype in [1].
> 
> Reference:
> [1] https://patchwork.kernel.org/comment/26121323/
> 
> Choong Yong Liang (2):
>   net: phy: replace phydev->eee_enabled with eee_cfg.eee_enabled
>   net: stmmac: set initial EEE policy configuration
> 
>  drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |  3 +++
>  drivers/net/phy/phy-c45.c                         | 11 +++++------
>  drivers/net/phy/phy_device.c                      |  6 +++---
>  include/linux/phy.h                               |  5 ++---
>  4 files changed, 13 insertions(+), 12 deletions(-)
> 

Russell submitted the proposed patch already:
https://patchwork.kernel.org/project/netdevbpf/patch/E1tBXAF-00341F-EQ@rmk-PC.armlinux.org.uk/
So there's no need for your patch 1.