Re: [PATCH] iommu/arm-smmu-v3: Allow stream table to have nodes with the same ID

Jason Gunthorpe
2025-04-11T14:06:02Z

On Fri, Apr 11, 2025 at 01:35:34PM +0000, Pranjal Shrivastava wrote:
> Isn't the device grouped *after* the ops->probe_device call? I see that
> the dev->iommu_group is assigned the ops->probe_device call in
> iommu_init_device.. so I guess this would still fail?

Yes you are right, we'd have to also change to setup the stream table
inside the device_group call back to validate stream table groups are
the same.

At that point it is probably trivial to just return the group already
in the stream table.

Jason