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* git://git.infradead.org/iommu-2.6: intel-iommu: Don't use identity mapping for PCI devices behind bridges intel-iommu: Use iommu_should_identity_map() at startup time too. intel-iommu: No mapping for non-PCI devices intel-iommu: Restore DMAR_BROKEN_GFX_WA option for broken graphics drivers intel-iommu: Add iommu_should_identity_map() function intel-iommu: Fix reattaching of devices to identity mapping domain intel-iommu: Don't set identity mapping for bypassed graphics devices intel-iommu: Fix dma vs. mm page confusion with aligned_nrpages()