Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Fri, 9 Dec 2022 17:08:18 +0200
From:   Vladimir Oltean <olteanv@gmail.com>
To:     Arun Ramadoss <arun.ramadoss@microchip.com>
Cc:     linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        woojung.huh@microchip.com, UNGLinuxDriver@microchip.com,
        andrew@lunn.ch, vivien.didelot@gmail.com, f.fainelli@gmail.com,
        davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
        pabeni@redhat.com, linux@armlinux.org.uk,
        Tristram.Ha@microchip.com, richardcochran@gmail.com,
        ceggers@arri.de
Subject: Re: [Patch net-next v3 09/13] net: dsa: microchip: ptp: move
 pdelay_rsp correction field to tail tag
Message-ID: <20221209150818.jmva3syosfxjigpg@skbuf>
References: <20221209072437.18373-1-arun.ramadoss@microchip.com>
 <20221209072437.18373-1-arun.ramadoss@microchip.com>
 <20221209072437.18373-10-arun.ramadoss@microchip.com>
 <20221209072437.18373-10-arun.ramadoss@microchip.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20221209072437.18373-10-arun.ramadoss@microchip.com>
 <20221209072437.18373-10-arun.ramadoss@microchip.com>
Precedence: bulk

On Fri, Dec 09, 2022 at 12:54:33PM +0530, Arun Ramadoss wrote:
> From: Christian Eggers <ceggers@arri.de>
> 
> For PDelay_Resp messages we will likely have a negative value in the
> correction field. The switch hardware cannot correctly update such
> values (produces an off by one error in the UDP checksum), so it must be
> moved to the time stamp field in the tail tag. Format of the correction
> field is 48 bit ns + 16 bit fractional ns.  After updating the
> correction field, clone is no longer required hence it is freed.
> 
> Signed-off-by: Christian Eggers <ceggers@arri.de>

Similar. This needs your sign off too.