[PATCH 1/5] Only define/declare kmsg_redirect when CONFIG_VT_CONSOLE is set

[Bernhard Walle <bernhard@bwalle.de>]

Since the variable is only used when CONFIG_VT_CONSOLE is set, we can save some
bytes of memory when CONFIG_VT_CONSOLE is not set.


Signed-off-by: Bernhard Walle <bernhard@bwalle.de>
---
 drivers/char/vt.c   |    2 ++
 include/linux/tty.h |    2 ++
 2 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 0c80c68..c3b1a86 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -187,7 +187,9 @@ static DECLARE_WORK(console_work, console_callback);
 int fg_console;
 int last_console;
 int want_console = -1;
+#ifdef CONFIG_VT_CONSOLE
 int kmsg_redirect;
+#endif
 
 /*
  * For each existing display, we have a pointer to console currently visible
diff --git a/include/linux/tty.h b/include/linux/tty.h
index f0f43d0..91bb1df 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -340,7 +340,9 @@ extern void tty_write_flush(struct tty_struct *);
 
 extern struct ktermios tty_std_termios;
 
+#ifdef CONFIG_VT_CONSOLE
 extern int kmsg_redirect;
+#endif
 
 extern void console_init(void);
 extern int vcs_init(void);
-- 
1.6.3.3