From a9efdd2519edd7df84afd075b65ca6428dcb0039 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 9 Jan 2023 18:58:06 +0100 Subject: [PATCH] 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: Rafael J. Wysocki Link: https://lore.kernel.org/r/20230109175810.2965448-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- drivers/base/bus.c | 41 ----------------------------------------- include/linux/device/bus.h | 2 -- 2 files changed, 43 deletions(-) diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 4425f96..f8eb882 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -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); diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h index 01077c5..3b1a206 100644 --- a/include/linux/device/bus.h +++ b/include/linux/device/bus.h @@ -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, -- 2.7.4