1 #ifndef BSG_H 2 #define BSG_H 3 4 #include <uapi/linux/bsg.h> 5 6 7 #if defined(CONFIG_BLK_DEV_BSG) 8 struct bsg_class_device { 9 struct device *class_dev; 10 struct device *parent; 11 int minor; 12 struct request_queue *queue; 13 struct kref ref; 14 void (*release)(struct device *); 15 }; 16 17 extern int bsg_register_queue(struct request_queue *q, 18 struct device *parent, const char *name, 19 void (*release)(struct device *)); 20 extern void bsg_unregister_queue(struct request_queue *); 21 #else 22 static inline int bsg_register_queue(struct request_queue *q, 23 struct device *parent, const char *name, 24 void (*release)(struct device *)) 25 { 26 return 0; 27 } 28 static inline void bsg_unregister_queue(struct request_queue *q) 29 { 30 } 31 #endif 32 33 #endif 34