Commit a9efdd25 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

driver core: remove subsys_find_device_by_id() 



This function has not been called by any code in the kernel tree in many
many years so remove it as it is unused.

Reviewed-by: default avatarRafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230109175810.2965448-2-gregkh@linuxfoundation.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8afbb427

drivers/base/bus.c

+0 −41
Original line number Diff line number Diff line
@@ -339,47 +339,6 @@ struct device *bus_find_device(struct bus_type *bus, 
}

EXPORT_SYMBOL_GPL(bus_find_device);



/**

 * subsys_find_device_by_id - find a device with a specific enumeration number

 * @subsys: subsystem

 * @id: index 'id' in struct device

 * @hint: device to check first

 *

 * Check the hint's next object and if it is a match return it directly,

 * otherwise, fall back to a full list search. Either way a reference for

 * the returned object is taken.

 */

struct device *subsys_find_device_by_id(struct bus_type *subsys, unsigned int id,

					struct device *hint)

{

	struct klist_iter i;

	struct device *dev;



	if (!subsys)

		return NULL;



	if (hint) {

		klist_iter_init_node(&subsys->p->klist_devices, &i, &hint->p->knode_bus);

		dev = next_device(&i);

		if (dev && dev->id == id && get_device(dev)) {

			klist_iter_exit(&i);

			return dev;

		}

		klist_iter_exit(&i);

	}



	klist_iter_init_node(&subsys->p->klist_devices, &i, NULL);

	while ((dev = next_device(&i))) {

		if (dev->id == id && get_device(dev)) {

			klist_iter_exit(&i);

			return dev;

		}

	}

	klist_iter_exit(&i);

	return NULL;

}

EXPORT_SYMBOL_GPL(subsys_find_device_by_id);



static struct device_driver *next_driver(struct klist_iter *i)

{

	struct klist_node *n = klist_next(i);

include/linux/device/bus.h

+0 −2
Original line number Diff line number Diff line
@@ -250,8 +250,6 @@ bus_find_device_by_acpi_dev(struct bus_type *bus, const void *adev) 
}

#endif



struct device *subsys_find_device_by_id(struct bus_type *bus, unsigned int id,

					struct device *hint);

int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,

		     void *data, int (*fn)(struct device_driver *, void *));

void bus_sort_breadthfirst(struct bus_type *bus,