diff --git a/include/linux/pci.h b/include/linux/pci.h
index e7d8d4e..325225c 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -578,6 +578,9 @@
 pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);
 int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable);
 
+/* Functions for PCI Hotplug drivers to use */
+int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);
+
 /* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */
 void pci_bus_assign_resources(struct pci_bus *bus);
 void pci_bus_size_bridges(struct pci_bus *bus);