usb: gadget: function: move u_f.h to include/linux/usb/func_utils.h

We move the func_utils.h header to include/linux/usb to be
able to compile function drivers outside of the
drivers/usb/gadget/function directory.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20240116-ml-topic-u9p-v12-1-9a27de5160e0@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/gadget/configfs.c

@@ -6,10 +6,10 @@
 #include <linux/kstrtox.h>
 #include <linux/nls.h>
 #include <linux/usb/composite.h>
+#include <linux/usb/func_utils.h>
 #include <linux/usb/gadget_configfs.h>
 #include <linux/usb/webusb.h>
 #include "configfs.h"
-#include "u_f.h"
 #include "u_os_desc.h"
 
 static int check_user_usb_string(const char *name,

drivers/usb/gadget/function/f_fs.c

@@ -33,6 +33,7 @@
 #include <linux/usb/ccid.h>
 #include <linux/usb/composite.h>
 #include <linux/usb/functionfs.h>
+#include <linux/usb/func_utils.h>
 
 #include <linux/aio.h>
 #include <linux/kthread.h>
@@ -40,7 +41,6 @@
 #include <linux/eventfd.h>
 
 #include "u_fs.h"
-#include "u_f.h"
 #include "u_os_desc.h"
 #include "configfs.h"
 

drivers/usb/gadget/function/f_hid.c

@@ -16,10 +16,10 @@
 #include <linux/wait.h>
 #include <linux/sched.h>
 #include <linux/workqueue.h>
+#include <linux/usb/func_utils.h>
 #include <linux/usb/g_hid.h>
 #include <uapi/linux/usb/g_hid.h>
 
-#include "u_f.h"
 #include "u_hid.h"
 
 #define HIDG_MINORS	4

drivers/usb/gadget/function/f_loopback.c

@@ -14,9 +14,9 @@
 #include <linux/module.h>
 #include <linux/err.h>
 #include <linux/usb/composite.h>
+#include <linux/usb/func_utils.h>
 
 #include "g_zero.h"
-#include "u_f.h"
 
 /*
  * LOOPBACK FUNCTION ... a testing vehicle for USB peripherals,

drivers/usb/gadget/function/f_midi.c

@@ -30,11 +30,11 @@
 #include <sound/rawmidi.h>
 
 #include <linux/usb/ch9.h>
+#include <linux/usb/func_utils.h>
 #include <linux/usb/gadget.h>
 #include <linux/usb/audio.h>
 #include <linux/usb/midi.h>
 
-#include "u_f.h"
 #include "u_midi.h"
 
 MODULE_AUTHOR("Ben Williamson");

drivers/usb/gadget/function/f_midi2.c

@@ -15,11 +15,11 @@
 #include <sound/ump_convert.h>
 
 #include <linux/usb/ch9.h>
+#include <linux/usb/func_utils.h>
 #include <linux/usb/gadget.h>
 #include <linux/usb/audio.h>
 #include <linux/usb/midi-v2.h>
 
-#include "u_f.h"
 #include "u_midi2.h"
 
 struct f_midi2;

drivers/usb/gadget/function/f_sourcesink.c

@@ -13,10 +13,10 @@
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/usb/composite.h>
+#include <linux/usb/func_utils.h>
 #include <linux/err.h>
 
 #include "g_zero.h"
-#include "u_f.h"
 
 /*
  * SOURCE/SINK FUNCTION ... a primary testing vehicle for USB peripheral

drivers/usb/gadget/u_f.c

@@ -8,8 +8,8 @@
  * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
  */
 
-#include "u_f.h"
 #include <linux/usb/ch9.h>
+#include <linux/usb/func_utils.h>
 
 struct usb_request *alloc_ep_req(struct usb_ep *ep, size_t len)
 {

include/linux/usb/func_utils.h

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * u_f.h
+ * func_utils.h
  *
  * Utility definitions for USB functions
  *
@@ -10,8 +10,8 @@
  * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
  */
 
-#ifndef __U_F_H__
+#ifndef _FUNC_UTILS_H_
-#define __U_F_H__
+#define _FUNC_UTILS_H_
 
 #include <linux/usb/gadget.h>
 #include <linux/overflow.h>
@@ -83,4 +83,4 @@ static inline void free_ep_req(struct usb_ep *ep, struct usb_request *req)
 	usb_ep_free_request(ep, req);
 }
 
-#endif /* __U_F_H__ */
+#endif /* _FUNC_UTILS_H_ */