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Message-ID: <YdOMlfbMH9b553V/@shell.armlinux.org.uk>
Date:   Mon, 3 Jan 2022 23:53:57 +0000
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Richard Cochran <richardcochran@...il.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andrew Lunn <andrew@...n.ch>,
        David Miller <davem@...emloft.net>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Jakub Kicinski <kuba@...nel.org>,
        Joakim Zhang <qiangqing.zhang@....com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Miroslav Lichvar <mlichvar@...hat.com>,
        Vladimir Oltean <vladimir.oltean@....com>
Subject: Re: [PATCH RFC V1 net-next 3/4] net: Let the active time stamping
 layer be selectable.

On Mon, Jan 03, 2022 at 03:25:54PM -0800, Richard Cochran wrote:
> Make the sysfs knob writable, and add checks in the ioctl and time
> stamping paths to respect the currently selected time stamping layer.
> 
> Signed-off-by: Richard Cochran <richardcochran@...il.com>

As I stated for patch 2, this patch will break mvpp2 PTP support,
since as soon as we bind a PHY, whether or not it supports PTP, you
will switch "selected_timestamping_layer" to be PHY mode PTP, and
direct all PTP calls to the PHY layer whether or not the PHY has
PTP support, away from the MAC layer.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

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