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b548e786ce
The default domain for a device might also be identity-mapped. In this case the kernel would crash when unity mappings are defined for the device. Fix that by making sure the domain is a dma_ops domain. Fixes: 0bb6e243d7fb ('iommu/amd: Support IOMMU_DOMAIN_DMA type allocation') Cc: stable@vger.kernel.org # v4.2+ Signed-off-by: Joerg Roedel <jroedel@suse.de>