Re: [PATCH v5 2/7] iommu: Decouple iommu_present() from bus ops

[Baolu Lu]

On 2023/10/12 2:14, Robin Murphy wrote:
> Much as I'd like to remove iommu_present(), the final remaining users
> are proving stubbornly difficult to clean up, so kick that can down the
> road and just rework it to preserve the current behaviour without
> depending on bus ops. Since commit 57365a04c921 ("iommu: Move bus setup
> to IOMMU device registration"), any registered IOMMU instance is already
> considered "present" for every entry in iommu_buses, so it's simply a
> case of validating the bus and checking we have at least once IOMMU.
>
> Reviewed-by: Jason Gunthorpe<jgg@xxxxxxxxxx>
> Signed-off-by: Robin Murphy<robin.murphy@xxxxxxx>

Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>

Best regards,
baolu