[PATCH v5 06/13] iommu: Add iommu_copy_struct_from_full_user_array helper

Tian, Kevin kevin.tian at intel.com
Tue Oct 29 01:24:52 PDT 2024


> From: Nicolin Chen <nicolinc at nvidia.com>
> Sent: Saturday, October 26, 2024 7:51 AM
> 
> From: Jason Gunthorpe <jgg at nvidia.com>
> 
> The iommu_copy_struct_from_user_array helper can be used to copy a
> single
> entry from a user array which might not be efficient if the array is big.
> 
> Add a new iommu_copy_struct_from_full_user_array to copy the entire user
> array at once. Update the existing iommu_copy_struct_from_user_array
> kdoc
> accordingly.

what about:

iommu_copy_struct_from_user_array_single()
iommu_copy_struct_from_user_array_full()

?

> 
> Signed-off-by: Jason Gunthorpe <jgg at nvidia.com>
> Signed-off-by: Nicolin Chen <nicolinc at nvidia.com>

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



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