diff --git a/drivers/pci/hotplug-pci.c b/drivers/pci/hotplug-pci.c
new file mode 100644
index 0000000..a590ef6
--- /dev/null
+++ b/drivers/pci/hotplug-pci.c
@@ -0,0 +1,20 @@
+/* Core PCI functionality used only by PCI hotplug */
+
+#include <linux/pci.h>
+#include "pci.h"
+
+
+unsigned int pci_do_scan_bus(struct pci_bus *bus)
+{
+	unsigned int max;
+
+	max = pci_scan_child_bus(bus);
+
+	/*
+	 * Make the discovered devices available.
+	 */
+	pci_bus_add_devices(bus);
+
+	return max;
+}
+EXPORT_SYMBOL(pci_do_scan_bus);