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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: Ej0mGbkk5nMX7LTaRHprkqtjHnwT45j8n4GLv1V4PzfLFGN4qfIh1mYqfeKifesyvJ2gJYLUwIqXKspW71HGFxVyIluWGFkLmXMxtTBTgobbo5a3mCgvbIuMPPWy59O02/4WPbpyrvST73F5ZzICVg15H9pit8bOfUJYJ+mRlNYjbNHCbTNNIvBJuzkClZGq+k6AYcuXHZUfFxw4+VOMQf+xEH+9Q3HueoS7JpBW7moTdCMB28Dj5ZkeDLlFcP1soMMQ1CxqC9DCR1jS6BI9jqoY2iUykdixbmnyhpFrKAYAxbh6l9XIB0Dat3mksHM5Kln74GOQni5IFZ1yC/LxqQ2Nf7VtUu7fUbHWT9OdEt1gqXBEBRFow9gpWdqy4Fs2ev9KihAOvtRIWup2r169RFBS9G1T25gwvvy9QLdQUvqjvUDXvQg0HVnwuPIaoB41 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Mar 2026 18:49:11.0200 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7b9a4d43-8144-46e9-c220-08de7e0c8d81 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: BN3PEPF0000B36F.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB8501 On Mon, Mar 09, 2026 at 11:27:42PM +0530, Nilay Shroff wrote: > Looking at the warning it seems that this is a regression caused due to > commit a75b2be249d6 ("iommu: Add iommu_driver_get_domain_for_dev() helper"). > > Any help from the iommu expert would be appreciated. Though I am not expert, > it seems the following patch help fix this warning (I encourage the iommu > developers to confirm and/or take this forward) : > > diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c > index 0ce71310b7d9..d122e8447831 100644 > --- a/arch/powerpc/kernel/iommu.c > +++ b/arch/powerpc/kernel/iommu.c > @@ -1159,7 +1159,7 @@ spapr_tce_platform_iommu_attach_dev(struct iommu_domain *platform_domain, > struct device *dev, > struct iommu_domain *old) > { > - struct iommu_domain *domain = iommu_get_domain_for_dev(dev); > + struct iommu_domain *domain = iommu_driver_get_domain_for_dev(dev); > struct iommu_table_group *table_group; > struct iommu_group *grp; > > > Please let me know if any further information is needed. Yea, that should be the fix. Please submit a "PATCH rc" with: Fixes: a75b2be249d6 ("iommu: Add iommu_driver_get_domain_for_dev() helper") Cc: stable@vger.kernel.org Thanks! Nicolin