{"id":2223943,"url":"http://patchwork.ozlabs.org/api/patches/2223943/?format=json","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=json","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=json","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=json","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":"","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 ","To":"","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":"","References":"","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 ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Errors-To":"kernel-team-bounces@lists.ubuntu.com","Sender":"\"kernel-team\" "},"content":"From: Vivek Kasireddy \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 \nSigned-off-by: Vivek Kasireddy \nReviewed-by: Kevin Tian \nTested-by: Alex Mastro \nTested-by: Nicolin Chen \nSigned-off-by: Leon Romanovsky \nAcked-by: Ankit Agrawal \nLink: https://lore.kernel.org/r/20251120-dmabuf-vfio-v9-7-d7f71607f371@nvidia.com\nSigned-off-by: Alex Williamson \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"]}