diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 57068e8035b5..bd8003d975bb 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3514,12 +3514,6 @@ int __init amd_iommu_init_passthrough(void)
 		dev_data = get_dev_data(&dev->dev);
 		dev_data->passthrough = true;
 
-		devid = get_device_id(&dev->dev);
-
-		iommu = amd_iommu_rlookup_table[devid];
-		if (!iommu)
-			continue;
-
 		attach_device(&dev->dev, pt_domain);
 	}