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Thu, 13 Nov 2025 15:43:11 -0800 Date: Thu, 13 Nov 2025 15:43:10 -0800 From: Nicolin Chen To: Jason Gunthorpe CC: Alex Williamson , Christian =?iso-8859-1?Q?K=F6nig?= , , , Joerg Roedel , Kevin Tian , , , , , Robin Murphy , "Shuah Khan" , Sumit Semwal , Will Deacon , Krishnakant Jaju , Leon Romanovsky , Matt Ochs , , Simona Vetter , Vivek Kasireddy , Xu Yilun Subject: Re: [PATCH 7/9] iommufd: Have iopt_map_file_pages convert the fd to a file Message-ID: References: <0-v1-af84a3ab44f5+f68-iommufd_buf_jgg@nvidia.com> <7-v1-af84a3ab44f5+f68-iommufd_buf_jgg@nvidia.com> Precedence: bulk X-Mailing-List: linux-media@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: <7-v1-af84a3ab44f5+f68-iommufd_buf_jgg@nvidia.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF00000146:EE_|CYXPR12MB9318:EE_ X-MS-Office365-Filtering-Correlation-Id: c45362b9-0d5d-45e7-3778-08de230e715c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700013|1800799024|82310400026; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Nov 2025 23:43:27.0023 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c45362b9-0d5d-45e7-3778-08de230e715c 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: CH2PEPF00000146.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CYXPR12MB9318 On Fri, Nov 07, 2025 at 12:49:39PM -0400, Jason Gunthorpe wrote: > Since dmabuf only has APIs that work on a int fd and not a struct file *, "an int fd" > pass the fd deeper into the call chain so we can use the dmabuf APIs as > is. > > Signed-off-by: Jason Gunthorpe Reviewed-by: Nicolin Chen