On 2025-05-01 8:46 am, Greg KH wrote: [...]
Great, all now queued up.
And now there's reports it is causing problems in the 6.6-stable queue: https://lore.kernel.org/r/1903a129-6e06-47d9-862b-ab23f72a9fea@nvidia.com so I'm going to drop it from the 6.6.y tree now, sorry.
Can you work with Jon to to get this figured out?
Oh fiddle... Jon, are you able to test if adding c8cc2655cc6c ("iommu/tegra-smmu: Implement an IDENTITY domain") makes it work OK? It cherry-picks cleanly, and I reckon it's just about small enough to be reasonable to take as a dependency. Indeed I had forgotten the subtlety of Tegra being the one driver which is used with CONFIG_IOMMU_DMA but still didn't support default domains at that point...
Thanks Robin,