netdev - Re: [PATCH 7/7] net: dsa: b53: Expose PTP timestamping ioctls to userspace

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Message-ID: <20211105141319.GA16456@hoboy.vegasvil.org>
Date:   Fri, 5 Nov 2021 07:13:19 -0700
From:   Richard Cochran <richardcochran@...il.com>
To:     Martin Kaistra <martin.kaistra@...utronix.de>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        John Stultz <john.stultz@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Stephen Boyd <sboyd@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 7/7] net: dsa: b53: Expose PTP timestamping ioctls to
 userspace

On Fri, Nov 05, 2021 at 02:38:01PM +0100, Martin Kaistra wrote:
> Ok, then I will remove HWTSTAMP_FILTER_PTP_V2_(EVENT|SYNC|DELAY_REQ) from
> this list, what about HWTSTAMP_FILTER_ALL?

AKK means time stamp every received frame, so your driver should
return an error in this case as well.

Thanks,
Richard