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Fri, 10 Jan 2025 13:35:12 -0800 Date: Fri, 10 Jan 2025 13:35:10 -0800 From: Nicolin Chen To: "Tian, Kevin" CC: "jgg@nvidia.com" , "corbet@lwn.net" , "will@kernel.org" , "joro@8bytes.org" , "suravee.suthikulpanit@amd.com" , "robin.murphy@arm.com" , "dwmw2@infradead.org" , "baolu.lu@linux.intel.com" , "shuah@kernel.org" , "linux-kernel@vger.kernel.org" , "iommu@lists.linux.dev" , "linux-arm-kernel@lists.infradead.org" , "linux-kselftest@vger.kernel.org" , "linux-doc@vger.kernel.org" , "eric.auger@redhat.com" , "jean-philippe@linaro.org" , "mdf@kernel.org" , "mshavit@google.com" , "shameerali.kolothum.thodi@huawei.com" , "smostafa@google.com" , "ddutile@redhat.com" , "Liu, Yi L" , "patches@lists.linux.dev" Subject: Re: [PATCH v5 07/14] iommufd/viommu: Add iommufd_viommu_get_vdev_id helper Message-ID: References: <1dc30375464927950e12a5a52ed0433c3b01b8d6.1736237481.git.nicolinc@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF00000143:EE_|CYYPR12MB8853:EE_ X-MS-Office365-Filtering-Correlation-Id: 83e78fbd-75e6-402c-50b5-08dd31beb63b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|1800799024|376014|36860700013|82310400026|7053199007; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Jan 2025 21:35:32.5803 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 83e78fbd-75e6-402c-50b5-08dd31beb63b X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF00000143.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CYYPR12MB8853 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250110_133542_718340_2EB929D9 X-CRM114-Status: GOOD ( 10.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Jan 10, 2025 at 07:07:36AM +0000, Tian, Kevin wrote: > > From: Nicolin Chen > > Sent: Wednesday, January 8, 2025 1:10 AM > > + > > + xa_lock(&viommu->vdevs); > > + xa_for_each(&viommu->vdevs, index, vdev) { > > + if (vdev && vdev->dev == dev) { > > + vdev_id = (unsigned long)vdev->id; > > + break; > > + } > > + } > > Nit. No need to check vdev pointer as commented in last review. Oh, I missed that. Will drop it. > Reviewed-by: Kevin Tian Thanks Nicolin