[PATCH 3/7] iommu: Remove ops.pgsize_bitmap from drivers that don't use it

Tomasz Jeznach tjeznach at rivosinc.com
Thu May 29 13:46:17 PDT 2025


On Tue, Apr 29, 2025 at 11:34:13AM -0300, Jason Gunthorpe wrote:
> These drivers all set the domain->pgsize_bitmap in their
> domain_alloc_paging() functions, so the ops value is never used. Delete
> it.
> 
> Signed-off-by: Jason Gunthorpe <jgg at nvidia.com>
> ---
>  drivers/iommu/apple-dart.c       | 1 -
>  drivers/iommu/intel/iommu.c      | 1 -
>  drivers/iommu/iommufd/selftest.c | 1 -
>  drivers/iommu/riscv/iommu.c      | 1 -
>  drivers/iommu/virtio-iommu.c     | 6 ++----
>  5 files changed, 2 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/iommu/riscv/iommu.c b/drivers/iommu/riscv/iommu.c
> index bb57092ca90110..2d0d31ba28860a 100644
> --- a/drivers/iommu/riscv/iommu.c
> +++ b/drivers/iommu/riscv/iommu.c
> @@ -1533,7 +1533,6 @@ static void riscv_iommu_release_device(struct device *dev)
>  }
>  
>  static const struct iommu_ops riscv_iommu_ops = {
> -	.pgsize_bitmap = SZ_4K,
>  	.of_xlate = riscv_iommu_of_xlate,
>  	.identity_domain = &riscv_iommu_identity_domain,
>  	.blocked_domain = &riscv_iommu_blocking_domain,

Reviewed-by: Tomasz Jeznach <tjeznach at rivosinc.com> # for RISC-V

Sorry for the delayed response.
- Tomasz



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