iommu_node 800 drivers/acpi/arm64/iort.c struct acpi_iort_node *iommu_node, *its_node = NULL; iommu_node 803 drivers/acpi/arm64/iort.c iommu_node = iort_get_msi_resv_iommu(dev); iommu_node 804 drivers/acpi/arm64/iort.c if (!iommu_node) iommu_node 817 drivers/acpi/arm64/iort.c its_node = iort_node_map_id(iommu_node,