netdev - Re: [PATCH net] net: ethtool: handle EOPNOTSUPP from ethtool get_ts

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] [day] [month] [year] [list]

Message-ID: <20250911165632.GO30363@horms.kernel.org>
Date: Thu, 11 Sep 2025 17:56:32 +0100
From: Simon Horman <horms@...nel.org>
To: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
Cc: Kory Maincent <kory.maincent@...tlin.com>, Andrew Lunn <andrew@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
	Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH net] net: ethtool: handle EOPNOTSUPP from ethtool
 get_ts_info() method

On Tue, Sep 09, 2025 at 03:07:17PM +0100, Russell King (Oracle) wrote:
> Network drivers sometimes return -EOPNOTSUPP from their get_ts_info()
> method, and this should not cause the reporting of PHY timestamping
> information to be prohibited. Handle this error code, and also
> arrange for ethtool_net_get_ts_info_by_phc() to return -EOPNOTSUPP
> when the method is not implemented.
> 
> This allows e.g. PHYs connected to DSA switches which support
> timestamping to report their timestamping capabilities.
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>

Reviewed-by: Simon Horman <horms@...nel.org>