drivers/base: Remove unused auxiliary_find_device

JIRA: https://issues.redhat.com/browse/RHEL-81536

commit 0ebe74c
Author: Dr. David Alan Gilbert <linux@treblig.org>
Date: Mon, 14 Oct 2024 08:21:09 +0000

auxiliary_find_device has been unused since commit
1c5de09 ("net/mlx5: Fix mlx5_get_next_dev() peer device matching")

which was the only use since it was originally added.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20240929141112.69824-1-linux@treblig.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mark Langsdorf <mlangsdo@redhat.com>

Author: mlangsdorf

Documentation/driver-api/auxiliary_bus.rst

@@ -23,7 +23,6 @@ Auxiliary Device Creation
 
 .. kernel-doc:: drivers/base/auxiliary.c
    :identifiers: auxiliary_device_init __auxiliary_device_add
-                 auxiliary_find_device
 
 Auxiliary Device Memory Model and Lifespan
 ------------------------------------------

drivers/base/auxiliary.c

@@ -335,35 +335,6 @@ int __auxiliary_device_add(struct auxiliary_device *auxdev, const char *modname)
 }
 EXPORT_SYMBOL_GPL(__auxiliary_device_add);
 
-/**
- * auxiliary_find_device - auxiliary device iterator for locating a particular device.
- * @start: Device to begin with
- * @data: Data to pass to match function
- * @match: Callback function to check device
- *
- * This function returns a reference to a device that is 'found'
- * for later use, as determined by the @match callback.
- *
- * The reference returned should be released with put_device().
- *
- * The callback should return 0 if the device doesn't match and non-zero
- * if it does.  If the callback returns non-zero, this function will
- * return to the caller and not iterate over any more devices.
- */
-struct auxiliary_device *auxiliary_find_device(struct device *start,
-					       const void *data,
-					       device_match_t match)
-{
-	struct device *dev;
-
-	dev = bus_find_device(&auxiliary_bus_type, start, data, match);
-	if (!dev)
-		return NULL;
-
-	return to_auxiliary_dev(dev);
-}
-EXPORT_SYMBOL_GPL(auxiliary_find_device);
-
 /**
  * __auxiliary_driver_register - register a driver for auxiliary bus devices
  * @auxdrv: auxiliary_driver structure

include/linux/auxiliary_bus.h

@@ -265,8 +265,4 @@ void auxiliary_driver_unregister(struct auxiliary_driver *auxdrv);
 #define module_auxiliary_driver(__auxiliary_driver) \
 	module_driver(__auxiliary_driver, auxiliary_driver_register, auxiliary_driver_unregister)
 
-struct auxiliary_device *auxiliary_find_device(struct device *start,
-					       const void *data,
-					       device_match_t match);
-
 #endif /* _AUXILIARY_BUS_H_ */