linux-kernel - [PATCH] drivers/base: Remove unused auxiliary_find

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Message-ID: <20240929141112.69824-1-linux@treblig.org>
Date: Sun, 29 Sep 2024 15:11:12 +0100
From: linux@...blig.org
To: gregkh@...uxfoundation.org,
	david.m.ertman@...el.com,
	ira.weiny@...el.com,
	corbet@....net,
	rafael@...nel.org
Cc: linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH] drivers/base: Remove unused auxiliary_find_device

From: "Dr. David Alan Gilbert" <linux@...blig.org>

auxiliary_find_device has been unused since commit
1c5de097bea3 ("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@...blig.org>
---
 Documentation/driver-api/auxiliary_bus.rst |  1 -
 drivers/base/auxiliary.c                   | 29 ----------------------
 include/linux/auxiliary_bus.h              |  4 ---
 3 files changed, 34 deletions(-)

diff --git a/Documentation/driver-api/auxiliary_bus.rst b/Documentation/driver-api/auxiliary_bus.rst
index cec84908fbc0..b236de773e1d 100644
--- a/Documentation/driver-api/auxiliary_bus.rst
+++ b/Documentation/driver-api/auxiliary_bus.rst
@@ -24,7 +24,6 @@ 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
 ------------------------------------------
diff --git a/drivers/base/auxiliary.c b/drivers/base/auxiliary.c
index 7823888af4f6..69b7c93613d6 100644
--- a/drivers/base/auxiliary.c
+++ b/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
diff --git a/include/linux/auxiliary_bus.h b/include/linux/auxiliary_bus.h
index 31762324bcc9..65dd7f154374 100644
--- a/include/linux/auxiliary_bus.h
+++ b/include/linux/auxiliary_bus.h
@@ -269,8 +269,4 @@ 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_ */
-- 
2.46.2