vt: make the default cursor shape configurable

For embedded systems, the blinking cursor at startup time can be annoying
and unintended.  Add a new kernel parameter to change the default cursor
shape.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Cc: Daniel Mack <daniel@caiaq.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: David Newall <davidn@davidnewall.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index e43fbc66aef0..50faa1fb0f06 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -164,6 +164,9 @@ module_param(default_utf8, int, S_IRUGO | S_IWUSR);
 int global_cursor_default = -1;
 module_param(global_cursor_default, int, S_IRUGO | S_IWUSR);
 
+static int cur_default = CUR_DEFAULT;
+module_param(cur_default, int, S_IRUGO | S_IWUSR);
+
 /*
  * ignore_poke: don't unblank the screen when things are typed.  This is
  * mainly for the privacy of braille terminal users.
@@ -1636,7 +1639,7 @@ static void reset_terminal(struct vc_data *vc, int do_clear)
         /* do not do set_leds here because this causes an endless tasklet loop
            when the keyboard hasn't been initialized yet */
 
-        vc->vc_cursor_type = CUR_DEFAULT;
+        vc->vc_cursor_type = cur_default;
         vc->vc_complement_mask = vc->vc_s_complement_mask;
 
         default_attr(vc);
@@ -1838,7 +1841,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
                                 if (vc->vc_par[0])
                                         vc->vc_cursor_type = vc->vc_par[0] | (vc->vc_par[1] << 8) | (vc->vc_par[2] << 16);
                                 else
-                                        vc->vc_cursor_type = CUR_DEFAULT;
+                                        vc->vc_cursor_type = cur_default;
                                 return;
                         }
                         break;