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GET /api/patches/2223943/?format=api
{ "id": 2223943, "url": "http://patchwork.ozlabs.org/api/patches/2223943/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/8ed6370f2f71fdada30802adc4147338b5af4e5d.1776340676.git.saviram@nvidia.com/", "project": { "id": 15, "url": "http://patchwork.ozlabs.org/api/projects/15/?format=api", "name": "Ubuntu Kernel", "link_name": "ubuntu-kernel", "list_id": "kernel-team.lists.ubuntu.com", "list_email": "kernel-team@lists.ubuntu.com", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<8ed6370f2f71fdada30802adc4147338b5af4e5d.1776340676.git.saviram@nvidia.com>", "list_archive_url": null, "date": "2026-04-16T12:14:05", "name": "[SRU,N:linux-bluefield,v1,1/2] UBUNTU: SAUCE: vfio: Export vfio device get and put registration helpers", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "3b6513f7951bee6d40773e7bf35914e3e3d421b6", "submitter": { "id": 91107, "url": "http://patchwork.ozlabs.org/api/people/91107/?format=api", "name": "Stav Aviram", "email": "saviram@nvidia.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/8ed6370f2f71fdada30802adc4147338b5af4e5d.1776340676.git.saviram@nvidia.com/mbox/", "series": [ { "id": 500146, "url": "http://patchwork.ozlabs.org/api/series/500146/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=500146", "date": "2026-04-16T12:14:04", "name": "UBUNTU: SAUCE: vfio: Export vfio device get and put registration helpers", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500146/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223943/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2223943/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<kernel-team-bounces@lists.ubuntu.com>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=Nvidia.com header.i=@Nvidia.com header.a=rsa-sha256\n header.s=selector2 header.b=LHjgHzf8;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; 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helo=mail.nvidia.com; pr=C", "permerror client-ip=40.107.201.4;\n envelope-from=saviram@nvidia.com;\n helo=CH4PR04CU002.outbound.protection.outlook.com" ], "From": "Stav Aviram <saviram@nvidia.com>", "To": "<kernel-team@lists.ubuntu.com>", "Subject": "[SRU][N:linux-bluefield][PATCH v1 1/2] UBUNTU: SAUCE: vfio: Export\n vfio device get and put registration helpers", "Date": "Thu, 16 Apr 2026 15:14:05 +0300", "Message-ID": "\n <8ed6370f2f71fdada30802adc4147338b5af4e5d.1776340676.git.saviram@nvidia.com>", "X-Mailer": "git-send-email 2.47.0", "In-Reply-To": "<cover.1776340676.git.saviram@nvidia.com>", "References": "<cover.1776340676.git.saviram@nvidia.com>", "MIME-Version": "1.0", "X-Originating-IP": "[10.126.230.37]", "X-ClientProxiedBy": "rnnvmail202.nvidia.com (10.129.68.7) To\n rnnvmail201.nvidia.com (10.129.68.8)", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "SJ1PEPF00001CDD:EE_|PH7PR12MB6836:EE_", "X-MS-Office365-Filtering-Correlation-Id": "c50e270d-2dc0-4938-bc5e-08de9bb1ba5a", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;\n ARA:13230040|36860700016|82310400026|376014|1800799024|13003099007|18002099003|22082099003|56012099003;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:216.228.117.161; CTRY:US; LANG:en; SCL:1;\n SRV:;\n IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge2.nvidia.com; CAT:NONE;\n SFS:(13230040)(36860700016)(82310400026)(376014)(1800799024)(13003099007)(18002099003)(22082099003)(56012099003);\n DIR:OUT; SFP:1101;", "X-MS-Exchange-AntiSpam-MessageData-ChunkCount": "1", "X-MS-Exchange-AntiSpam-MessageData-0": "\n 8L88oFlu2/L6RmbZDZ5cfESVyVA+I3wF09ncBKA+M9PWvXzxoOoF0fNTe/sCbMHGyDVYENneGBzk2QLdy7/KkVkkoD7WvwvUavBdpqtXcyj4yROPg8nPU1+KhdjJwKcZj72oxz3MTcLUY+/3WgDg6YeCgwHTXaf8RfRcnb67pvT7OeiJqBRBb9lsDy1ae0I2kxbC2WtqFlhsBZrAUduMAI2mobkQy7tseKT/ruE1l7ClPVWWVWFMcUm4h2mJyKn7PEnuSsGyZ+/qJvw+A230djSkx/RIPYnXIuLz43hEKUdjgg8OkJOqettKL/012I6Vid3GpIdvAv9ppG93nrzbcT3vaa8nQTqysxvEiAF+Nwhre+jTiSpnEBTNiJeHhhoyAsyHWqOjFaqkDodm4hzUphyuJBGUf6QQNOlpfVVrxwwT/GyoBue/O1LvAeR0w2g8", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "16 Apr 2026 12:14:37.0807 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n c50e270d-2dc0-4938-bc5e-08de9bb1ba5a", "X-MS-Exchange-CrossTenant-Id": "43083d15-7273-40c1-b7db-39efd9ccc17a", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.161];\n Helo=[mail.nvidia.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n SJ1PEPF00001CDD.namprd05.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "PH7PR12MB6836", "X-BeenThere": "kernel-team@lists.ubuntu.com", "X-Mailman-Version": "2.1.20", "Precedence": "list", "List-Id": "Kernel team discussions <kernel-team.lists.ubuntu.com>", "List-Unsubscribe": "<https://lists.ubuntu.com/mailman/options/kernel-team>,\n <mailto:kernel-team-request@lists.ubuntu.com?subject=unsubscribe>", "List-Archive": "<https://lists.ubuntu.com/archives/kernel-team>", "List-Post": "<mailto:kernel-team@lists.ubuntu.com>", "List-Help": "<mailto:kernel-team-request@lists.ubuntu.com?subject=help>", "List-Subscribe": "<https://lists.ubuntu.com/mailman/listinfo/kernel-team>,\n <mailto:kernel-team-request@lists.ubuntu.com?subject=subscribe>", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "Errors-To": "kernel-team-bounces@lists.ubuntu.com", "Sender": "\"kernel-team\" <kernel-team-bounces@lists.ubuntu.com>" }, "content": "From: Vivek Kasireddy <vivek.kasireddy@intel.com>\n\nBugLink: https://bugs.launchpad.net/bugs/2148554\n\nThese helpers are useful for managing additional references taken\non the device from other associated VFIO modules.\n\nOriginal-patch-by: Jason Gunthorpe <jgg@nvidia.com>\nSigned-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>\nReviewed-by: Kevin Tian <kevin.tian@intel.com>\nTested-by: Alex Mastro <amastro@fb.com>\nTested-by: Nicolin Chen <nicolinc@nvidia.com>\nSigned-off-by: Leon Romanovsky <leonro@nvidia.com>\nAcked-by: Ankit Agrawal <ankita@nvidia.com>\nLink: https://lore.kernel.org/r/20251120-dmabuf-vfio-v9-7-d7f71607f371@nvidia.com\nSigned-off-by: Alex Williamson <alex@shazbot.org>\n---\n drivers/vfio/vfio_main.c | 2 ++\n include/linux/vfio.h | 2 ++\n 2 files changed, 4 insertions(+)", "diff": "diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c\nindex 981e663571d6..b0bf6ee4def3 100644\n--- a/drivers/vfio/vfio_main.c\n+++ b/drivers/vfio/vfio_main.c\n@@ -171,11 +171,13 @@ void vfio_device_put_registration(struct vfio_device *device)\n \tif (refcount_dec_and_test(&device->refcount))\n \t\tcomplete(&device->comp);\n }\n+EXPORT_SYMBOL_GPL(vfio_device_put_registration);\n \n bool vfio_device_try_get_registration(struct vfio_device *device)\n {\n \treturn refcount_inc_not_zero(&device->refcount);\n }\n+EXPORT_SYMBOL_GPL(vfio_device_try_get_registration);\n \n /*\n * VFIO driver API\ndiff --git a/include/linux/vfio.h b/include/linux/vfio.h\nindex b6ab948a3904..7e1fe5503af4 100644\n--- a/include/linux/vfio.h\n+++ b/include/linux/vfio.h\n@@ -284,6 +284,8 @@ static inline void vfio_device_get(struct vfio_device *device)\n int vfio_register_group_dev(struct vfio_device *device);\n int vfio_register_emulated_iommu_dev(struct vfio_device *device);\n void vfio_unregister_group_dev(struct vfio_device *device);\n+bool vfio_device_try_get_registration(struct vfio_device *device);\n+void vfio_device_put_registration(struct vfio_device *device);\n \n int vfio_assign_device_set(struct vfio_device *device, void *set_id);\n unsigned int vfio_device_set_open_count(struct vfio_device_set *dev_set);\n", "prefixes": [ "SRU", "N:linux-bluefield", "v1", "1/2" ] }