staging: gpib: fix kernel-doc section for usb_gpib_line_status() function

The function name field in the kernel-doc section for the
usb_gpib_line_status() is defined as 'line_status'. In addition, after
the kernel-doc section, there are three macro definition instead of the
function definition.

These issues trigger the warning:

warning: expecting prototype for line_status(). Prototype was for WQT()
instead.

Fix the warning by renaming the function in the kernel-doc section and
by moving the macros to the beginning of the file with the rest of
macros definition.

Signed-off-by: Gaston Gonzalez <gascoar@gmail.com>
Link: https://lore.kernel.org/r/20250305193614.39604-7-gascoar@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: gascoar

drivers/staging/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c

@@ -78,6 +78,10 @@ module_param(debug, int, 0644);
 			dev_dbg(board->gpib_dev, format, ## __VA_ARGS__); } \
 	while (0)
 
+#define WQT wait_queue_entry_t
+#define WQH head
+#define WQE entry
+
 /* standard and extended command sets of the usb-gpib adapter */
 
 #define USB_GPIB_ON	 "\nIB\n"
@@ -644,17 +648,12 @@ static void usb_gpib_interface_clear(struct gpib_board *board, int assert)
 }
 
 /**
- * line_status() - Read the status of the bus lines.
+ * usb_gpib_line_status() - Read the status of the bus lines.
  *
  *  @board:    the gpib_board data area for this gpib interface
  *
  *    We can read all lines.
  */
-
-#define WQT wait_queue_entry_t
-#define WQH head
-#define WQE entry
-
 static int usb_gpib_line_status(const struct gpib_board *board)
 {
 	int buffer;