diff --git a/drivers/iommu/intel/dmar.c b/drivers/iommu/intel/dmar.c
index b61d9ea27aa9..ec975c73cfe6 100644
--- a/drivers/iommu/intel/dmar.c
+++ b/drivers/iommu/intel/dmar.c
@@ -935,14 +935,11 @@ void __init detect_intel_iommu(void)
 		pci_request_acs();
 	}
 
-#ifdef CONFIG_X86
 	if (!ret) {
 		x86_init.iommu.iommu_init = intel_iommu_init;
 		x86_platform.iommu_shutdown = intel_iommu_shutdown;
 	}
 
-#endif
-
 	if (dmar_tbl) {
 		acpi_put_table(dmar_tbl);
 		dmar_tbl = NULL;