netdev - Re: [PATCH net-next 1/6] net: stmmac: remove eee_enabled/eee_active in stmmac_ethtool_op_get

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: <67554a72-42f3-4c69-96b5-adc63e76c4cb@broadcom.com>
Date: Fri, 2 Feb 2024 17:22:49 -0800
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
 Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
 bcm-kernel-feedback-list@...adcom.com, Byungho An <bh74.an@...sung.com>,
 Clark Wang <xiaoning.wang@....com>, "David S. Miller" <davem@...emloft.net>,
 Doug Berger <opendmb@...il.com>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Jose Abreu <joabreu@...opsys.com>,
 Justin Chen <justin.chen@...adcom.com>,
 linux-arm-kernel@...ts.infradead.org,
 linux-stm32@...md-mailman.stormreply.com,
 Maxime Coquelin <mcoquelin.stm32@...il.com>, netdev@...r.kernel.org,
 NXP Linux Team <linux-imx@....com>, Paolo Abeni <pabeni@...hat.com>,
 Shenwei Wang <shenwei.wang@....com>, Vladimir Oltean <olteanv@...il.com>,
 Wei Fang <wei.fang@....com>
Subject: Re: [PATCH net-next 1/6] net: stmmac: remove eee_enabled/eee_active
 in stmmac_ethtool_op_get_eee()

On 2/2/2024 1:33 AM, Russell King (Oracle) wrote:
> stmmac_ethtool_op_get_eee() sets both eee_enabled and eee_active, and
> then goes on to call phylink_ethtool_get_eee().
> 
> phylink_ethtool_get_eee() will return -EOPNOTSUPP if there is no PHY
> present, otherwise calling phy_ethtool_get_eee() which in turn will call
> genphy_c45_ethtool_get_eee().
> 
> genphy_c45_ethtool_get_eee() will overwrite eee_enabled and eee_active
> with its own interpretation from the PHYs settings and negotiation
> result.
> 
> Thus, when there is no PHY, stmmac_ethtool_op_get_eee() will fail with
> -EOPNOTSUPP, meaning eee_enabled and eee_active will not be returned to
> userspace. When there is a PHY, eee_enabled and eee_active will be
> overwritten by phylib, making the setting of these members in
> stmmac_ethtool_op_get_eee() entirely unnecessary.
> 
> Remove this code, thus simplifying stmmac_ethtool_op_get_eee().
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>

Reviewed-by: Florian Fainelli <florian.fainelli@...adcom.com>
-- 
Florian

Download attachment "smime.p7s" of type "application/pkcs7-signature" (4221 bytes)