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Mon, 28 Sep 2026 11:47:43 -0700 Date: Tue, 29 Sep 2026 00:17:30 +0530 From: Sonang Patel To: "Aneesh Kumar K.V (Arm)" CC: , , , , Jason Gunthorpe , Alexey Kardashevskiy , Bjorn Helgaas , Joerg Roedel , Jonathan Cameron , Kevin Tian , Nicolin Chen , Samuel Ortiz , Steven Price , Suzuki K Poulose , "Will Deacon" , Xu Yilun , "Shameer Kolothum" , Paolo Bonzini Subject: Re: [RFC PATCH v6 11/11] PCI/TSM: Add reference-counted contexts for vdevice providers Message-ID: References: <20260917140159.1163281-1-aneesh.kumar@kernel.org> <20260917140159.1163281-12-aneesh.kumar@kernel.org> 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="us-ascii" Content-Disposition: inline In-Reply-To: <20260917140159.1163281-12-aneesh.kumar@kernel.org> X-ClientProxiedBy: rnnvmail201.nvidia.com (10.129.68.8) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV8PEPF0000006C:EE_|PH0PR12MB7929:EE_ X-MS-Office365-Filtering-Correlation-Id: 3e28e56e-57c8-4b5c-81d5-08df1d911091 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700016|23010399003|376014|7416014|1800799024|10067099003|11063799006|18002099003|22082099003|56012099006|4143699003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: FAQclJpiKjRvntL9hZKCNRc0ifwPLcpWctEk5kIGdp4Aks7j9rH3YLZSu5PRnOM8G7/iy/b7e6uUSHrXevVzySnICfcf25xbOP612RqudgpOxUSCowmQxc/NNnTKn6yN15zHieZ7NCxHboCH6ZLXM6bCAOgy0G2lTYY3AaaIBqWmDzSJKEy/eO/nlqntydeIQ6mv8WiUJlK3fzW9eyuv0rMzscXs71/ZNjPA1ncnLMG6N4dQRuk7eJaT1NtSWvU0Eb+OwhQTtFdWjlSo7trgCq64ppng0xs/D8tcn95urw3GeqZhM9MhSGaB423P8BlMchstdL1Qtp6/nqaF6rYToVuHZSHvOsbU9Fyw77pH9HxWFDFb3dNKXinBUcU4odZF/I5kdNXO4KjPMzEvE+GzEkbUDNYyShDrV4dv9UZN5er5EKaBLElSo7wXIhwsKB+F X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Sep 2026 18:48:19.3460 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3e28e56e-57c8-4b5c-81d5-08df1d911091 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: LV8PEPF0000006C.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR12MB7929 On Thu, 17 Sep 2026 19:31:59 +0530, Aneesh Kumar K.V (Arm) wrote: > + if (is_pci_tsm_pf0(pdev)) { > + if (pci_tsm_disconnect(pdev)) > + pci_warn(pdev, "TSM connection is still in use\n"); > + } else { > + tsm_remove(pdev->tsm); > + } What happens if the PCI device is removed (e.g. sysfs remove, surprise hot-unplug) while the vDEVICE/TDI still exists? Since removal cannot be refused, should the remove path still force the unbind/unlock? Thanks, Sonang Patel