Re: [PATCH 1/5] iommu: Return -EMEDIUMTYPE for incompatible domain and device/group

Baolu Lu
2022-06-07T03:24:02Z

On 2022/6/6 14:19, Nicolin Chen wrote:
> +/**
> + * iommu_attach_group - Attach an IOMMU group to an IOMMU domain
> + * @domain: IOMMU domain to attach
> + * @dev: IOMMU group that will be attached

Nit: @group: ...

> + *
> + * Returns 0 on success and error code on failure
> + *
> + * Specifically, -EMEDIUMTYPE is returned if the domain and the group are
> + * incompatible in some way. This indicates that a caller should try another
> + * existing IOMMU domain or allocate a new one.
> + */
> int iommu_attach_group(struct iommu_domain *domain, struct iommu_group *group)
> {
> int ret;

Best regards,
baolu