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authorJoerg Roedel <jroedel@suse.de>2020-06-04 11:19:44 +0200
committerJoerg Roedel <jroedel@suse.de>2020-06-04 11:38:17 +0200
commit431275afdc7155415254aef4bd3816a1b8a2ead0 (patch)
treeed95d55eba1858908b7a86b84daf425e5a91d802 /drivers/iommu/Makefile
parentcc69fc4861705c27c0506d39189015d7404129ed (diff)
iommu: Check for deferred attach in iommu_group_do_dma_attach()
The iommu_group_do_dma_attach() must not attach devices which have deferred_attach set. Otherwise devices could cause IOMMU faults when re-initialized in a kdump kernel. Fixes: deac0b3bed26 ("iommu: Split off default domain allocation from group assignment") Reported-by: Jerry Snitselaar <jsnitsel@redhat.com> Signed-off-by: Joerg Roedel <jroedel@suse.de> Tested-by: Jerry Snitselaar <jsnitsel@redhat.com> Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com> Link: https://lore.kernel.org/r/20200604091944.26402-1-joro@8bytes.org
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