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iommu/amd: Make sure dma_ops are set for hotplug devices
commit c2a2876 upstream. There is a bug introduced with commit 27c2127 that causes devices which are hot unplugged and then hot-replugged to not have per-device dma_ops set. This causes these devices to not function correctly. Fixed with this patch. Reported-by: Andreas Degert <firstname.lastname@example.org> Signed-off-by: Joerg Roedel <email@example.com> Signed-off-by: Greg Kroah-Hartman <firstname.lastname@example.org>
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