[PATCH v3 2/3] iommu/amd: Don't call report_iommu_fault()

[Tian, Kevin]

> From: Jason Gunthorpe <jgg at nvidia.com>
> Sent: Friday, November 21, 2025 3:46 AM
> 
> This old style API is only used by drivers/gpu/drm/msm,
> drivers/remoteproc/omap_remoteproc.c, and
> drivers/remoteproc/qcom_q6v5_adsp.c none are used on x86 HW.
> 
> Remove the dead code to discourage new users.
> 
> Also remove the domain == NULL print because it was intended to protect
> against a NULL deref inside report_iommu_fault() which is no longer
> possible.
> 
> Just always print the fault in the same format if it could get a dev_data.
> There is no value to be gained by also printing if the domain is NULL. In
> today's kernel when the dev_data is populated the domain will be made
> !NULL very quickly during iommu device probing.
> 
> Reviewed-by: Vasant Hegde <vasant.hegde at amd.com>
> Signed-off-by: Jason Gunthorpe <jgg at nvidia.com>

Reviewed-by: Kevin Tian <kevin.tian at intel.com>