--- zzzz-none-000/linux-2.6.39.4/drivers/pci/pcie/portdrv.h	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/drivers/pci/pcie/portdrv.h	2021-11-10 13:38:15.000000000 +0000
@@ -23,6 +23,9 @@
 extern struct bus_type pcie_port_bus_type;
 extern int pcie_port_device_register(struct pci_dev *dev);
 #ifdef CONFIG_PM
+#ifdef CONFIG_ARCH_GEN3
+int pcie_portdrv_restore_config(struct pci_dev *dev);
+#endif
 extern int pcie_port_device_suspend(struct device *dev);
 extern int pcie_port_device_resume(struct device *dev);
 #endif