Re: [PATCH v6 05/10] iommu: Add iommu_copy_struct_from_full_user_array helper

[Jason Gunthorpe]

On Wed, Oct 30, 2024 at 02:35:31PM -0700, Nicolin Chen wrote:
> From: Jason Gunthorpe <jgg@xxxxxxxxxx>
> 
> 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.
> 
> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
> Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx>
> ---
>  include/linux/iommu.h | 48 ++++++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 47 insertions(+), 1 deletion(-)

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Jason