Re: [PATCH v9 7/7] iommu/riscv: Paging domain support

[Jason Gunthorpe]

On Thu, Oct 10, 2024 at 12:48:10PM -0700, Tomasz Jeznach wrote:

> @@ -856,7 +1445,7 @@ static struct iommu_domain riscv_iommu_identity_domain = {
>  
>  static int riscv_iommu_device_domain_type(struct device *dev)
>  {
> -	return IOMMU_DOMAIN_IDENTITY;
> +	return 0;
>  }

Remove the function please instead of returning 0

> +static void riscv_iommu_release_device(struct device *dev)
> +{
> +	struct riscv_iommu_info *info = dev_iommu_priv_get(dev);
> +
> +	synchronize_rcu();
> +	kfree(info);
> +}

Just call kfree_rcu() ? We have a variation that doesn't require the
rcu_head now.

Jason