Re: [RFC 04/20] iommu: Add iommu_device_get_info interface

[Lu Baolu]

Hi Jason,

On 9/22/21 12:19 AM, Jason Gunthorpe wrote:
> On Sun, Sep 19, 2021 at 02:38:32PM +0800, Liu Yi L wrote:
> > From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> >
> > This provides an interface for upper layers to get the per-device iommu
> > attributes.
> >
> >      int iommu_device_get_info(struct device *dev,
> >                                enum iommu_devattr attr, void *data);
>
> Can't we use properly typed ops and functions here instead of a void
> *data?
>
> get_snoop()
> get_page_size()
> get_addr_width()

Yeah! Above are more friendly to the upper layer callers.

> ?
>
> Jason

Best regards,
baolu