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

[Jason Gunthorpe]

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()

?

Jason