122 extern int __must_check bus_register(struct bus_type *bus);
124 extern void bus_unregister(struct bus_type *bus);
126 extern int __must_check bus_rescan_devices(struct bus_type *bus);
130 	ssize_t (*show)(struct bus_type *bus, char *buf);
131 	ssize_t (*store)(struct bus_type *bus, const char *buf, size_t count);
165 int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data,
167 struct device *bus_find_device(struct bus_type *bus, struct device *start,
177 static inline struct device *bus_find_device_by_name(struct bus_type *bus,  in bus_find_device_by_name()  argument
181 	return bus_find_device(bus, start, name, device_match_name);  in bus_find_device_by_name()
191 bus_find_device_by_of_node(struct bus_type *bus, const struct device_node *np)  in bus_find_device_by_of_node()  argument
193 	return bus_find_device(bus, NULL, np, device_match_of_node);  in bus_find_device_by_of_node()
203 bus_find_device_by_fwnode(struct bus_type *bus, const struct fwnode_handle *fwnode)  in bus_find_device_by_fwnode()  argument
205 	return bus_find_device(bus, NULL, fwnode, device_match_fwnode);  in bus_find_device_by_fwnode()
214 static inline struct device *bus_find_device_by_devt(struct bus_type *bus,  in bus_find_device_by_devt()  argument
217 	return bus_find_device(bus, NULL, &devt, device_match_devt);  in bus_find_device_by_devt()
227 bus_find_next_device(struct bus_type *bus,struct device *cur)  in bus_find_next_device()  argument
229 	return bus_find_device(bus, cur, NULL, device_match_any);  in bus_find_next_device()
242 bus_find_device_by_acpi_dev(struct bus_type *bus, const struct acpi_device *adev)  in bus_find_device_by_acpi_dev()  argument
244 	return bus_find_device(bus, NULL, adev, device_match_acpi_dev);  in bus_find_device_by_acpi_dev()
248 bus_find_device_by_acpi_dev(struct bus_type *bus, const void *adev)  in bus_find_device_by_acpi_dev()  argument
254 struct device *subsys_find_device_by_id(struct bus_type *bus, unsigned int id,
256 int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,
258 void bus_sort_breadthfirst(struct bus_type *bus,
269 extern int bus_register_notifier(struct bus_type *bus,
271 extern int bus_unregister_notifier(struct bus_type *bus,
290 extern struct kset *bus_get_kset(struct bus_type *bus);
291 extern struct klist *bus_get_device_klist(struct bus_type *bus);