video: fbdev: omapfb: Unexport omap*_update_window_async()

There is no need to EXPORT the functions hwa742_update_window_async()
and omapfb_update_window_async() since they are not used anywhere inside
or outside the kernel tree.
Signed-off-by: Helge Deller <deller@gmx.de>

drivers/video/fbdev/omap/hwa742.c

@@ -489,7 +489,7 @@ static void hwa742_update_window_auto(struct timer_list *unused)
 	__hwa742_update_window_auto(false);
 }
 
-int hwa742_update_window_async(struct fb_info *fbi,
+static int hwa742_update_window_async(struct fb_info *fbi,
 				 struct omapfb_update_window *win,
 				 void (*complete_callback)(void *arg),
 				 void *complete_callback_data)
@@ -522,7 +522,6 @@ int hwa742_update_window_async(struct fb_info *fbi,
 out:
 	return r;
 }
-EXPORT_SYMBOL(hwa742_update_window_async);
 
 static int hwa742_setup_plane(int plane, int channel_out,
 				  unsigned long offset, int screen_width,

drivers/video/fbdev/omap/omapfb.h

@@ -227,13 +227,4 @@ extern int  omapfb_register_client(struct omapfb_notifier_block *nb,
 				   omapfb_notifier_callback_t callback,
 				   void *callback_data);
 extern int  omapfb_unregister_client(struct omapfb_notifier_block *nb);
-extern int  omapfb_update_window_async(struct fb_info *fbi,
-				       struct omapfb_update_window *win,
-				       void (*callback)(void *),
-				       void *callback_data);
-extern int  hwa742_update_window_async(struct fb_info *fbi,
-				       struct omapfb_update_window *win,
-				       void (*callback)(void *),
-				       void *callback_data);
-
 #endif /* __OMAPFB_H */

drivers/video/fbdev/omap/omapfb_main.c

@@ -668,7 +668,7 @@ static int omapfb_set_par(struct fb_info *fbi)
 	return r;
 }
 
-int omapfb_update_window_async(struct fb_info *fbi,
+static int omapfb_update_window_async(struct fb_info *fbi,
 				struct omapfb_update_window *win,
 				void (*callback)(void *),
 				void *callback_data)
@@ -714,7 +714,6 @@ int omapfb_update_window_async(struct fb_info *fbi,
 
 	return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
 }
-EXPORT_SYMBOL(omapfb_update_window_async);
 
 static int omapfb_update_win(struct fb_info *fbi,
 				struct omapfb_update_window *win)