diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 13c8e1f864fc..faf503aa3b70 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -113,7 +113,9 @@ static void __init MP_bus_info(struct mpc_bus *m)
 		pr_warn("Unknown bustype %s - ignoring\n", str);
 }
 
-static struct irq_domain_ops mp_ioapic_irqdomain_ops;
+static struct irq_domain_ops mp_ioapic_irqdomain_ops = {
+	.map = mp_irqdomain_map,
+};
 
 static void __init MP_ioapic_info(struct mpc_ioapic *m)
 {
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 84112f55dd7a..e4200e5e775e 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -1227,8 +1227,6 @@ static int pirq_enable_irq(struct pci_dev *dev)
 			}
 			dev = temp_dev;
 			if (irq >= 0) {
-				io_apic_set_pci_routing(&dev->dev, irq,
-							 &irq_attr);
 				dev->irq = irq;
 				dev_info(&dev->dev, "PCI->APIC IRQ transform: "
 					 "INT %c -> IRQ %d\n", 'A' + pin - 1, irq);