vt: vt_kern.h, remove extern from functions

Unify the declarations of functions in vt_kern.h: some are with extern,
some are not. Remove extern from the former as it is not needed for
functions.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20200219073951.16151-7-jslaby@suse.czSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/vt_kern.h

@@ -28,8 +28,9 @@
 #define BROKEN_GRAPHICS_PROGRAMS 1
 #endif
 
-extern void kd_mksound(unsigned int hz, unsigned int ticks);
-extern int kbd_rate(struct kbd_repeat *rep);
+void kd_mksound(unsigned int hz, unsigned int ticks);
+int kbd_rate(struct kbd_repeat *rep);
+
 extern int fg_console, last_console, want_console;
 
 /* console.c */
@@ -131,7 +132,7 @@ void vt_event_post(unsigned int event, unsigned int old, unsigned int new);
 int vt_waitactive(int n);
 void change_console(struct vc_data *new_vc);
 void reset_vc(struct vc_data *vc);
-extern int do_unbind_con_driver(const struct consw *csw, int first, int last,
+int do_unbind_con_driver(const struct consw *csw, int first, int last,
 			 int deflt);
 int vty_init(const struct file_operations *console_fops);
 
@@ -146,7 +147,7 @@ struct vt_spawn_console {
 };
 extern struct vt_spawn_console vt_spawn_con;
 
-extern int vt_move_to_console(unsigned int vt, int alloc);
+int vt_move_to_console(unsigned int vt, int alloc);
 
 /* Interfaces for VC notification of character events (for accessibility etc) */
 
@@ -155,35 +156,34 @@ struct vt_notifier_param {
 	unsigned int c;		/* Printed char */
 };
 
-extern int register_vt_notifier(struct notifier_block *nb);
-extern int unregister_vt_notifier(struct notifier_block *nb);
+int register_vt_notifier(struct notifier_block *nb);
+int unregister_vt_notifier(struct notifier_block *nb);
 
-extern void hide_boot_cursor(bool hide);
+void hide_boot_cursor(bool hide);
 
 /* keyboard  provided interfaces */
-extern int vt_do_diacrit(unsigned int cmd, void __user *up, int eperm);
-extern int vt_do_kdskbmode(int console, unsigned int arg);
-extern int vt_do_kdskbmeta(int console, unsigned int arg);
-extern int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc,
-								int perm);
-extern int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe,
-					int perm, int console);
-extern int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb,
+int vt_do_diacrit(unsigned int cmd, void __user *up, int eperm);
+int vt_do_kdskbmode(int console, unsigned int arg);
+int vt_do_kdskbmeta(int console, unsigned int arg);
+int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc,
 			  int perm);
-extern int vt_do_kdskled(int console, int cmd, unsigned long arg, int perm);
-extern int vt_do_kdgkbmode(int console);
-extern int vt_do_kdgkbmeta(int console);
-extern void vt_reset_unicode(int console);
-extern int vt_get_shift_state(void);
-extern void vt_reset_keyboard(int console);
-extern int vt_get_leds(int console, int flag);
-extern int vt_get_kbd_mode_bit(int console, int bit);
-extern void vt_set_kbd_mode_bit(int console, int bit);
-extern void vt_clr_kbd_mode_bit(int console, int bit);
-extern void vt_set_led_state(int console, int leds);
-extern void vt_set_led_state(int console, int leds);
-extern void vt_kbd_con_start(int console);
-extern void vt_kbd_con_stop(int console);
+int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
+		     int console);
+int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm);
+int vt_do_kdskled(int console, int cmd, unsigned long arg, int perm);
+int vt_do_kdgkbmode(int console);
+int vt_do_kdgkbmeta(int console);
+void vt_reset_unicode(int console);
+int vt_get_shift_state(void);
+void vt_reset_keyboard(int console);
+int vt_get_leds(int console, int flag);
+int vt_get_kbd_mode_bit(int console, int bit);
+void vt_set_kbd_mode_bit(int console, int bit);
+void vt_clr_kbd_mode_bit(int console, int bit);
+void vt_set_led_state(int console, int leds);
+void vt_set_led_state(int console, int leds);
+void vt_kbd_con_start(int console);
+void vt_kbd_con_stop(int console);
 
 void vc_scrolldelta_helper(struct vc_data *c, int lines,
 		unsigned int rolled_over, void *_base, unsigned int size);