linux/arch/x86/boot/compressed/early_serial_console.c
Joe Millenbach cec49df9d3 x86, boot: Exclude early_serial_console.c if can't use it.
Removes early_serial_console.c code if we don't have the config option that
enables it (EARLY_PRINTK). When disabling this code, make early_serial_base a
constant 0 to allow the compiler to optimize away the code that checks for
early_serial_base.

Signed-off-by: Joe Millenbach <jmillenbach@gmail.com>
Link: http://lkml.kernel.org/r/1342746282-28497-7-git-send-email-jmillenbach@gmail.com
Signed-off-by: Gokul Caushik <caushik1@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2012-07-21 11:07:34 -07:00

10 lines
116 B
C

#include "misc.h"
#ifdef CONFIG_EARLY_PRINTK
int early_serial_base;
#include "../early_serial_console.c"
#endif