diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 211fd41..881dc15 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -44,6 +44,7 @@
 };
 
 extern int pci_set_platform_pm(struct pci_platform_pm_ops *ops);
+extern void pci_disable_enabled_device(struct pci_dev *dev);
 extern void pci_pm_init(struct pci_dev *dev);
 extern void platform_pci_wakeup_init(struct pci_dev *dev);
 extern void pci_allocate_cap_save_buffers(struct pci_dev *dev);