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kernel add
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/*
* function prototpyes for early printk
*
* Copyright 2007-2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef __ASM_EARLY_PRINTK_H__
#define __ASM_EARLY_PRINTK_H__
#ifdef CONFIG_EARLY_PRINTK
/* For those that don't include it already */
#include <linux/console.h>
extern int setup_early_printk(char *);
extern void enable_shadow_console(void);
extern int shadow_console_enabled(void);
extern void mark_shadow_error(void);
extern void early_shadow_reg(unsigned long reg, unsigned int n);
extern void early_shadow_write(struct console *con, const char *s,
unsigned int n) __attribute__((nonnull(2)));
#define early_shadow_puts(str) early_shadow_write(NULL, str, strlen(str))
#define early_shadow_stamp() \
do { \
early_shadow_puts(__FILE__ " : " __stringify(__LINE__) " ["); \
early_shadow_puts(__func__); \
early_shadow_puts("]
"); \
} while (0)
#else
#define setup_early_printk(fmt) do { } while (0)
#define enable_shadow_console(fmt) do { } while (0)
#define early_shadow_stamp() do { } while (0)
#endif /* CONFIG_EARLY_PRINTK */
#endif /* __ASM_EARLY_PRINTK_H__ */
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