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Fri, 19 Jan 2024 01:21:05 -0700 Received: from localhost (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Fri, 19 Jan 2024 01:21:04 -0700 Date: Fri, 19 Jan 2024 09:21:03 +0100 From: Horatiu Vultur To: Andrew Lunn CC: , , , , , , , , , , , Subject: Re: [PATCH net v2 2/2] net: micrel: Fix set/get PHC time for lan8814 Message-ID: <20240119082103.edy647tbf2akokjy@DEN-DL-M31836.microchip.com> References: <20240118085916.1204354-1-horatiu.vultur@microchip.com> <20240118085916.1204354-3-horatiu.vultur@microchip.com> <6fa37dfd-3c92-4842-9785-1b17bbbedc9d@lunn.ch> <20240118152353.syk3v7kgf3mutqpp@DEN-DL-M31836.microchip.com> <139fe4c1-6a3e-4ef3-a178-ebbe09652966@lunn.ch> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline In-Reply-To: <139fe4c1-6a3e-4ef3-a178-ebbe09652966@lunn.ch> The 01/18/2024 18:00, Andrew Lunn wrote: > > > > Maybe submit this for net-next? > > > > Anyway, I don't have strong feelings about this, if it goes to net or > > net-next, I just want to fix this at some point :) > > Please submit to net-next. I think the ML bot which picks out patches > to backport is likely to see the work Fix in the subject and decided > to backport it anyway. But its not our problem if the bot breaks the > stable rules. Yes, I will do that. > > Is there any danger of regressions? Could the higher word actually > have a value for some reason today, which is being ignored. Would this > change then jump the time forward? I am not seeing any danger of regressions. By default the higher word has a value of 0, and doesn't have any special functionality to jump forward or backwards. It just contains upper 16 bits of the second [47:32]. I have seen only on register PTP_LTC_STEP_ADJ_HI that the most significant bit can signify if to jump forward or backwards. > > Andrew -- /Horatiu