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Tue, 3 Nov 2026 07:17:18 +0000 Message-ID: <84054d1a-9e89-42ff-ba85-f2d04b821415@intel.com> Date: Mon, 2 Nov 2026 23:17:15 -0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net 2/5] e1000e: do not cache the hwtstamp config before it is applied To: Linkui Xiao , , , , , , , CC: , , , Linkui Xiao , References: <20261028090455.2291659-1-xiaolinkui@126.com> <7f3b08fb-8eec-4ff1-a696-f8a1b3df7b45@126.com> From: Jacob Keller Content-Language: en-US In-Reply-To: <7f3b08fb-8eec-4ff1-a696-f8a1b3df7b45@126.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-ClientProxiedBy: MW4PR04CA0174.namprd04.prod.outlook.com (2603:10b6:303:85::29) To DS0PR11MB7381.namprd11.prod.outlook.com (2603:10b6:8:134::14) X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR11MB7381:EE_|SA0PR11MB4621:EE_ X-MS-Office365-Filtering-Correlation-Id: c606c90e-1394-4198-f343-08df397a7ea8 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|23010399003|1800799024|366016|6133799003|10067099003|18002099003|261102123227099003|22082099003|56012099006|4143699003|261026121527099003|11063799006|261022075727099003|261022105027099003|261021121427099003|261022113327099003|261028144727099003|261026140227099003; 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>>> >>>   - e1000e_systim_reset() re-applies it after every reset, including >>>     the ones the watchdog triggers, and keeps failing; >>> >>>   - e1000_watchdog() starts polling TSYNCRXCTL_VALID for the cached rx >>>     filter, and e1000_xmit_frame() still parks skbs that ask for a Tx >>>     time stamp because it only looks at FLAG_HAS_HW_TIMESTAMP, so they >>>     are eventually dropped by e1000e_tx_hwtstamp_work() with a >>>     "clearing Tx timestamp hang" warning. >>> >>> Cache the configuration only once both registers have been verified, >>> so that adapter->hwtstamp_config always describes what the hardware >>> is programmed with. >>> >> >> Any idea why this got marked as patch 2 out of 5? This doesn't appear on >> either netdev or iwl with any other patches. > Regarding your question about the "2/5" marking: it was an oversight on > my end. I generated this fix from a local branch that contained other > commits, and `git format-patch` automatically added the series > numbering. The patch is indeed a standalone fix and was not intended to > be part of a series posted elsewhere. > > I'll make sure to use a proper invocation for single patches going forward. > > Thanks again for your time and for taking this fix into the Intel Wired > LAN tree. > > Best regards, > Linkui Thanks for clarifying! I mostly wanted to make sure it wasn't some issue with mails not hitting the list (spam or other issues), and potential fixes being missed. The numbering will get fixed and merged with other patches once our review process completes and Tony finds space for submission to netdev. That may take a bit. Thanks, Jake