ARM: 9418/1: dma-mapping: Use iommu_paging_domain_alloc()

Since arm_iommu_create_mapping() now accepts the device, let's replace
iommu_domain_alloc() with iommu_paging_domain_alloc() to retire the former.

Signed-off-by: Lu Baolu <[email protected]>
Reviewed-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Vasant Hegde <[email protected]>
Acked-by: Michael S. Tsirkin <[email protected]>
Acked-by: Jeff Johnson <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>

Author: jgunthorpe

arch/arm/mm/dma-mapping.c

@@ -1585,9 +1585,11 @@ arm_iommu_create_mapping(struct device *dev, dma_addr_t base, u64 size)
 
 	spin_lock_init(&mapping->lock);
 
-	mapping->domain = iommu_domain_alloc(dev->bus);
-	if (!mapping->domain)
+	mapping->domain = iommu_paging_domain_alloc(dev);
+	if (IS_ERR(mapping->domain)) {
+		err = PTR_ERR(mapping->domain);
 		goto err4;
+	}
 
 	kref_init(&mapping->kref);
 	return mapping;