Date:   Mon, 3 Jan 2022 23:53:57 +0000
From:   "Russell King (Oracle)" <linux@armlinux.org.uk>
To:     Richard Cochran <richardcochran@gmail.com>
Cc:     netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        Andrew Lunn <andrew@lunn.ch>,
        David Miller <davem@davemloft.net>,
        Grygorii Strashko <grygorii.strashko@ti.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Joakim Zhang <qiangqing.zhang@nxp.com>,
        Kurt Kanzenbach <kurt@linutronix.de>,
        Miroslav Lichvar <mlichvar@redhat.com>,
        Vladimir Oltean <vladimir.oltean@nxp.com>
Subject: Re: [PATCH RFC V1 net-next 3/4] net: Let the active time stamping
 layer be selectable.
Message-ID: <YdOMlfbMH9b553V/@shell.armlinux.org.uk>
References: <20220103232555.19791-4-richardcochran@gmail.com>
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Sender: Russell King (Oracle) <linux@armlinux.org.uk>
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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@gmail.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.

-- 
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