diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index f46eb7397021..e23e70af718f 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -1816,17 +1816,10 @@ void amd_iommu_domain_update(struct protection_domain *domain)
 	amd_iommu_domain_flush_complete(domain);
 }
 
-static void __init amd_iommu_init_dma_ops(void)
-{
-	swiotlb = (iommu_default_passthrough() || sme_me_mask) ? 1 : 0;
-}
-
 int __init amd_iommu_init_api(void)
 {
 	int err;
 
-	amd_iommu_init_dma_ops();
-
 	err = bus_set_iommu(&pci_bus_type, &amd_iommu_ops);
 	if (err)
 		return err;