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printk: add kern_levels.h to make KERN_<LEVEL> available for asm use 

Separate the printk.h file into 2 pieces so the definitions can be used in
asm files.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2012-07-30 14:40:11 -07:00 committed by Linus Torvalds
parent acc8fa41ad
commit 314ba3520e
2 changed files with 23 additions and 18 deletions
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22
include/linux/kern_levels.h Normal file
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@ -0,0 +1,22 @@
#ifndef __KERN_LEVELS_H__
#define __KERN_LEVELS_H__
#define KERN_EMERG "<0>" /* system is unusable */
#define KERN_ALERT "<1>" /* action must be taken immediately */
#define KERN_CRIT "<2>" /* critical conditions */
#define KERN_ERR "<3>" /* error conditions */
#define KERN_WARNING "<4>" /* warning conditions */
#define KERN_NOTICE "<5>" /* normal but significant condition */
#define KERN_INFO "<6>" /* informational */
#define KERN_DEBUG "<7>" /* debug-level messages */
/* Use the default kernel loglevel */
#define KERN_DEFAULT "<d>"
/*
* Annotation for a "continued" line of log printout (only done after a
* line that had no enclosing \n). Only to be used by core/arch code
* during early bootup (a continued line is not SMP-safe otherwise).
*/
#define KERN_CONT "<c>"
#endif

19
include/linux/printk.h
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@ -2,28 +2,11 @@
#define __KERNEL_PRINTK__
#include <linux/init.h>
#include <linux/kern_levels.h>
extern const char linux_banner[];
extern const char linux_proc_banner[];
#define KERN_EMERG "<0>" /* system is unusable */
#define KERN_ALERT "<1>" /* action must be taken immediately */
#define KERN_CRIT "<2>" /* critical conditions */
#define KERN_ERR "<3>" /* error conditions */
#define KERN_WARNING "<4>" /* warning conditions */
#define KERN_NOTICE "<5>" /* normal but significant condition */
#define KERN_INFO "<6>" /* informational */
#define KERN_DEBUG "<7>" /* debug-level messages */
/* Use the default kernel loglevel */
#define KERN_DEFAULT "<d>"
/*
* Annotation for a "continued" line of log printout (only done after a
* line that had no enclosing \n). Only to be used by core/arch code
* during early bootup (a continued line is not SMP-safe otherwise).
*/
#define KERN_CONT "<c>"
static inline int printk_get_level(const char *buffer)
{
if (buffer[0] == '<' && buffer[1] && buffer[2] == '>') {