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author | Joe Millenbach <jmillenbach@gmail.com> | 2012-07-19 18:04:41 -0700 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2012-07-21 11:07:34 -0700 |
commit | cec49df9d331feaa2fea3d24c07147c7659940d1 (patch) | |
tree | d63b2898127138446f5c1809b416e288ae05ee26 /arch/x86/boot/compressed/misc.h | |
parent | 641a1cebfe2f05fa1a48503d816fc70cf707d033 (diff) | |
download | linux-stable-cec49df9d331feaa2fea3d24c07147c7659940d1.tar.gz linux-stable-cec49df9d331feaa2fea3d24c07147c7659940d1.tar.bz2 linux-stable-cec49df9d331feaa2fea3d24c07147c7659940d1.zip |
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/misc.h')
-rw-r--r-- | arch/x86/boot/compressed/misc.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h index 618e5c830f15..3ffee6e0c54c 100644 --- a/arch/x86/boot/compressed/misc.h +++ b/arch/x86/boot/compressed/misc.h @@ -43,7 +43,17 @@ int cmdline_find_option(const char *option, char *buffer, int bufsize); int cmdline_find_option_bool(const char *option); /* early_serial_console.c */ +#ifdef CONFIG_EARLY_PRINTK + extern int early_serial_base; void console_init(void); +#else + +static const int early_serial_base; +static inline void console_init(void) +{ } + +#endif + #endif |