> From: Nicolin Chen <nicolinc@xxxxxxxxxx> > Sent: Wednesday, September 21, 2022 4:23 PM > > > +/** > + * iommu_attach_device - Attach a device to an IOMMU domain > + * @domain: IOMMU domain to attach > + * @dev: Device that will be attached > + * > + * Returns 0 on success and error code on failure > + * > + * Note that EINVAL may be returned as a soft failure if the domain and > device > + * are incompatible due to some previous configuration of the domain, in > which > + * case attaching the same device to a different domain may succeed. Revise a bit: * Note that EINVAL can be treated as a soft failure, indicating * that certain configuration of the domain is incompatible with * the device. In this case attaching a different domain to the * device may succeed. Apart from that: Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
