diff options
| author | Joe Millenbach <jmillenbach@gmail.com> | 2012-07-19 18:04:41 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2012-07-21 11:07:34 -0700 |
| commit | cec49df9d331feaa2fea3d24c07147c7659940d1 (patch) | |
| tree | d63b2898127138446f5c1809b416e288ae05ee26 /arch/x86/boot/compressed/early_serial_console.c | |
| parent | 641a1cebfe2f05fa1a48503d816fc70cf707d033 (diff) | |
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>
Diffstat (limited to 'arch/x86/boot/compressed/early_serial_console.c')
| -rw-r--r-- | arch/x86/boot/compressed/early_serial_console.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/early_serial_console.c b/arch/x86/boot/compressed/early_serial_console.c index 261e81fb9582..d3d003cb5481 100644 --- a/arch/x86/boot/compressed/early_serial_console.c +++ b/arch/x86/boot/compressed/early_serial_console.c @@ -1,5 +1,9 @@ #include "misc.h" +#ifdef CONFIG_EARLY_PRINTK + int early_serial_base; #include "../early_serial_console.c" + +#endif |