|  | /* | 
|  | * include/net/switchdev.h - Switch device API | 
|  | * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us> | 
|  | * | 
|  | * This program is free software; you can redistribute it and/or modify | 
|  | * it under the terms of the GNU General Public License as published by | 
|  | * the Free Software Foundation; either version 2 of the License, or | 
|  | * (at your option) any later version. | 
|  | */ | 
|  | #ifndef _LINUX_SWITCHDEV_H_ | 
|  | #define _LINUX_SWITCHDEV_H_ | 
|  |  | 
|  | #include <linux/netdevice.h> | 
|  |  | 
|  | #ifdef CONFIG_NET_SWITCHDEV | 
|  |  | 
|  | int netdev_switch_parent_id_get(struct net_device *dev, | 
|  | struct netdev_phys_item_id *psid); | 
|  | int netdev_switch_port_stp_update(struct net_device *dev, u8 state); | 
|  |  | 
|  | #else | 
|  |  | 
|  | static inline int netdev_switch_parent_id_get(struct net_device *dev, | 
|  | struct netdev_phys_item_id *psid) | 
|  | { | 
|  | return -EOPNOTSUPP; | 
|  | } | 
|  |  | 
|  | static inline int netdev_switch_port_stp_update(struct net_device *dev, | 
|  | u8 state) | 
|  | { | 
|  | return -EOPNOTSUPP; | 
|  | } | 
|  |  | 
|  | #endif | 
|  |  | 
|  | #endif /* _LINUX_SWITCHDEV_H_ */ |