[PATCH v4 04/23] iommu: Add iommu_copy_struct_to_user helper

[Tian, Kevin]

> From: Nicolin Chen <nicolinc at nvidia.com>
> Sent: Friday, May 9, 2025 11:02 AM
> 
> Similar to the iommu_copy_struct_from_user helper receiving data from the
> user space, add an iommu_copy_struct_to_user helper to report output data
> back to the user space data pointer.
> 
> Reviewed-by: Jason Gunthorpe <jgg at nvidia.com>
> Reviewed-by: Lu Baolu <baolu.lu at linux.intel.com>
> Reviewed-by: Pranjal Shrivastava <praan at google.com>
> Signed-off-by: Nicolin Chen <nicolinc at nvidia.com>

Reviewed-by: Kevin Tian <kevin.tian at intel.com>