diff --git a/drivers/iommu/intel/dmar.c b/drivers/iommu/intel/dmar.c
index bc9f4cf72240803764202c1d2b6e3fda46d941c7..b2e804473209d85c382384532df46226e03a8dc2 100644
--- a/drivers/iommu/intel/dmar.c
+++ b/drivers/iommu/intel/dmar.c
@@ -335,9 +335,7 @@ static void  dmar_pci_bus_del_dev(struct dmar_pci_notify_info *info)
 
 static inline void vf_inherit_msi_domain(struct pci_dev *pdev)
 {
-#ifdef CONFIG_PCI_ATS
 	dev_set_msi_domain(&pdev->dev, dev_get_msi_domain(&pdev->physfn->dev));
-#endif
 }
 
 static int dmar_pci_bus_notifier(struct notifier_block *nb,