--- zzzz-none-000/linux-4.9.276/arch/mips/pci/pci-legacy.c	2021-07-20 14:21:16.000000000 +0000
+++ falcon-5530-750/linux-4.9.276/arch/mips/pci/pci-legacy.c	2023-04-05 08:19:00.000000000 +0000
@@ -77,7 +77,7 @@
 	static int next_busno;
 	static int need_domain_info;
 	LIST_HEAD(resources);
-	struct pci_bus *bus;
+	struct pci_bus *bus, *child;
 
 	if (hose->get_busno && pci_has_flag(PCI_PROBE_ONLY))
 		next_busno = (*hose->get_busno)();
@@ -88,8 +88,14 @@
 				hose->io_resource, hose->io_offset);
 	pci_add_resource_offset(&resources,
 				hose->busn_resource, hose->busn_offset);
-	bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
-				&resources);
+
+	if (IS_ENABLED(CONFIG_PCI_MSI)) {
+		bus = pci_scan_root_bus_msi(NULL, next_busno,
+					    hose->pci_ops, hose, &resources,
+					    hose->msi_ctr);
+	} else
+		bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
+					&resources);
 	hose->bus = bus;
 
 	need_domain_info = need_domain_info || pci_domain_nr(bus);
@@ -199,7 +205,7 @@
 	}
 
 	INIT_LIST_HEAD(&hose->list);
-	list_add(&hose->list, &controllers);
+	list_add_tail(&hose->list, &controllers);
 
 	/*
 	 * Do not panic here but later - this might happen before console init.