fbdev: Unexport fb_mode_option

There are no external users of fb_mode_option. Unexport the variable
and declare it static.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230209135509.7786-7-tzimmermann@suse.de

drivers/video/fbdev/core/fb_cmdline.c

@@ -18,11 +18,9 @@
 #include <linux/fb.h>
 
 static char *video_options[FB_MAX] __read_mostly;
+static const char *fb_mode_option __read_mostly;
 static int ofonly __read_mostly;
 
-const char *fb_mode_option;
-EXPORT_SYMBOL_GPL(fb_mode_option);
-
 /**
  * fb_get_options - get kernel boot parameters
  * @name:   framebuffer name as it would appear in

include/linux/fb.h

@@ -764,7 +764,6 @@ struct dmt_videomode {
 	const struct fb_videomode *mode;
 };
 
-extern const char *fb_mode_option;
 extern const struct fb_videomode vesa_modes[];
 extern const struct dmt_videomode dmt_modes[];