[linux-2.6-block.git] / include / linux / printk.h

#ifndef __KERNEL_PRINTK__
#define __KERNEL_PRINTK__

#include <linux/init.h>
#include <linux/kern_levels.h>

extern const char linux_banner[];
extern const char linux_proc_banner[];

static inline int printk_get_level(const char *buffer)
{
	if (buffer[0] == KERN_SOH_ASCII && buffer[1]) {
		switch (buffer[1]) {
		case '0' ... '7':
		case 'd':	/* KERN_DEFAULT */
			return buffer[1];
		}
	}
	return 0;
}

static inline const char *printk_skip_level(const char *buffer)
{
	if (printk_get_level(buffer)) {
		switch (buffer[1]) {
		case '0' ... '7':
		case 'd':	/* KERN_DEFAULT */
			return buffer + 2;
		}
	}
	return buffer;
}

extern int console_printk[];

#define console_loglevel (console_printk[0])
#define default_message_loglevel (console_printk[1])
#define minimum_console_loglevel (console_printk[2])
#define default_console_loglevel (console_printk[3])

static inline void console_silent(void)
{
	console_loglevel = 0;
}

static inline void console_verbose(void)
{
	if (console_loglevel)
		console_loglevel = 15;
}

struct va_format {
	const char *fmt;
	va_list *va;
};

/*
 * FW_BUG
 * Add this to a message where you are sure the firmware is buggy or behaves
 * really stupid or out of spec. Be aware that the responsible BIOS developer
 * should be able to fix this issue or at least get a concrete idea of the
 * problem by reading your message without the need of looking at the kernel
 * code.
 *
 * Use it for definite and high priority BIOS bugs.
 *
 * FW_WARN
 * Use it for not that clear (e.g. could the kernel messed up things already?)
 * and medium priority BIOS bugs.
 *
 * FW_INFO
 * Use this one if you want to tell the user or vendor about something
 * suspicious, but generally harmless related to the firmware.
 *
 * Use it for information or very low priority BIOS bugs.
 */
#define FW_BUG		"[Firmware Bug]: "
#define FW_WARN		"[Firmware Warn]: "
#define FW_INFO		"[Firmware Info]: "

/*
 * HW_ERR
 * Add this to a message for hardware errors, so that user can report
 * it to hardware vendor instead of LKML or software vendor.
 */
#define HW_ERR		"[Hardware Error]: "

/*
 * Dummy printk for disabled debugging statements to use whilst maintaining
 * gcc's format and side-effect checking.
 */
static inline __printf(1, 2)
int no_printk(const char *fmt, ...)
{
	return 0;
}

#ifdef CONFIG_EARLY_PRINTK
extern asmlinkage __printf(1, 2)
void early_printk(const char *fmt, ...);
void early_vprintk(const char *fmt, va_list ap);
#else
static inline __printf(1, 2) __cold
void early_printk(const char *s, ...) { }
#endif

#ifdef CONFIG_PRINTK
asmlinkage __printf(5, 0)
int vprintk_emit(int facility, int level,
		 const char *dict, size_t dictlen,
		 const char *fmt, va_list args);

asmlinkage __printf(1, 0)
int vprintk(const char *fmt, va_list args);

asmlinkage __printf(5, 6) __cold
asmlinkage int printk_emit(int facility, int level,
			   const char *dict, size_t dictlen,
			   const char *fmt, ...);

asmlinkage __printf(1, 2) __cold
int printk(const char *fmt, ...);

/*
 * Special printk facility for scheduler use only, _DO_NOT_USE_ !
 */
__printf(1, 2) __cold int printk_sched(const char *fmt, ...);

/*
 * Please don't use printk_ratelimit(), because it shares ratelimiting state
 * with all other unrelated printk_ratelimit() callsites.  Instead use
 * printk_ratelimited() or plain old __ratelimit().
 */
extern int __printk_ratelimit(const char *func);
#define printk_ratelimit() __printk_ratelimit(__func__)
extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
				   unsigned int interval_msec);

extern int printk_delay_msec;
extern int dmesg_restrict;
extern int kptr_restrict;

extern void wake_up_klogd(void);

void log_buf_kexec_setup(void);
void __init setup_log_buf(int early);
#else
static inline __printf(1, 0)
int vprintk(const char *s, va_list args)
{
	return 0;
}
static inline __printf(1, 2) __cold
int printk(const char *s, ...)
{
	return 0;
}
static inline __printf(1, 2) __cold
int printk_sched(const char *s, ...)
{
	return 0;
}
static inline int printk_ratelimit(void)
{
	return 0;
}
static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies,
					  unsigned int interval_msec)
{
	return false;
}

static inline void wake_up_klogd(void)
{
}

static inline void log_buf_kexec_setup(void)
{
}

static inline void setup_log_buf(int early)
{
}
#endif

extern void dump_stack(void) __cold;

#ifndef pr_fmt
#define pr_fmt(fmt) fmt
#endif

#define pr_emerg(fmt, ...) \
	printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
#define pr_alert(fmt, ...) \
	printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
#define pr_crit(fmt, ...) \
	printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
#define pr_err(fmt, ...) \
	printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
#define pr_warning(fmt, ...) \
	printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
#define pr_warn pr_warning
#define pr_notice(fmt, ...) \
	printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
#define pr_info(fmt, ...) \
	printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
#define pr_cont(fmt, ...) \
	printk(KERN_CONT fmt, ##__VA_ARGS__)

/* pr_devel() should produce zero code unless DEBUG is defined */
#ifdef DEBUG
#define pr_devel(fmt, ...) \
	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#else
#define pr_devel(fmt, ...) \
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#endif

/* If you are writing a driver, please use dev_dbg instead */
#if defined(CONFIG_DYNAMIC_DEBUG)
/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
#define pr_debug(fmt, ...) \
	dynamic_pr_debug(fmt, ##__VA_ARGS__)
#elif defined(DEBUG)
#define pr_debug(fmt, ...) \
	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#else
#define pr_debug(fmt, ...) \
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#endif

/*
 * Print a one-time message (analogous to WARN_ONCE() et al):
 */

#ifdef CONFIG_PRINTK
#define printk_once(fmt, ...)			\
({						\
	static bool __print_once;		\
						\
	if (!__print_once) {			\
		__print_once = true;		\
		printk(fmt, ##__VA_ARGS__);	\
	}					\
})
#else
#define printk_once(fmt, ...)			\
	no_printk(fmt, ##__VA_ARGS__)
#endif

#define pr_emerg_once(fmt, ...)					\
	printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
#define pr_alert_once(fmt, ...)					\
	printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
#define pr_crit_once(fmt, ...)					\
	printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
#define pr_err_once(fmt, ...)					\
	printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
#define pr_warn_once(fmt, ...)					\
	printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
#define pr_notice_once(fmt, ...)				\
	printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
#define pr_info_once(fmt, ...)					\
	printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
#define pr_cont_once(fmt, ...)					\
	printk_once(KERN_CONT pr_fmt(fmt), ##__VA_ARGS__)

#if defined(DEBUG)
#define pr_devel_once(fmt, ...)					\
	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#else
#define pr_devel_once(fmt, ...)					\
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#endif

/* If you are writing a driver, please use dev_dbg instead */
#if defined(DEBUG)
#define pr_debug_once(fmt, ...)					\
	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#else
#define pr_debug_once(fmt, ...)					\
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#endif

/*
 * ratelimited messages with local ratelimit_state,
 * no local ratelimit_state used in the !PRINTK case
 */
#ifdef CONFIG_PRINTK
#define printk_ratelimited(fmt, ...)					\
({									\
	static DEFINE_RATELIMIT_STATE(_rs,				\
				      DEFAULT_RATELIMIT_INTERVAL,	\
				      DEFAULT_RATELIMIT_BURST);		\
									\
	if (__ratelimit(&_rs))						\
		printk(fmt, ##__VA_ARGS__);				\
})
#else
#define printk_ratelimited(fmt, ...)					\
	no_printk(fmt, ##__VA_ARGS__)
#endif

#define pr_emerg_ratelimited(fmt, ...)					\
	printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
#define pr_alert_ratelimited(fmt, ...)					\
	printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
#define pr_crit_ratelimited(fmt, ...)					\
	printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
#define pr_err_ratelimited(fmt, ...)					\
	printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
#define pr_warn_ratelimited(fmt, ...)					\
	printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
#define pr_notice_ratelimited(fmt, ...)					\
	printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
#define pr_info_ratelimited(fmt, ...)					\
	printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
/* no pr_cont_ratelimited, don't do that... */

#if defined(DEBUG)
#define pr_devel_ratelimited(fmt, ...)					\
	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#else
#define pr_devel_ratelimited(fmt, ...)					\
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#endif

/* If you are writing a driver, please use dev_dbg instead */
#if defined(DEBUG)
#define pr_debug_ratelimited(fmt, ...)					\
	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#else
#define pr_debug_ratelimited(fmt, ...) \
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#endif

extern const struct file_operations kmsg_fops;

enum {
	DUMP_PREFIX_NONE,
	DUMP_PREFIX_ADDRESS,
	DUMP_PREFIX_OFFSET
};
extern void hex_dump_to_buffer(const void *buf, size_t len,
			       int rowsize, int groupsize,
			       char *linebuf, size_t linebuflen, bool ascii);
#ifdef CONFIG_PRINTK
extern void print_hex_dump(const char *level, const char *prefix_str,
			   int prefix_type, int rowsize, int groupsize,
			   const void *buf, size_t len, bool ascii);
#if defined(CONFIG_DYNAMIC_DEBUG)
#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len)	\
	dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true)
#else
extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
				 const void *buf, size_t len);
#endif /* defined(CONFIG_DYNAMIC_DEBUG) */
#else
static inline void print_hex_dump(const char *level, const char *prefix_str,
				  int prefix_type, int rowsize, int groupsize,
				  const void *buf, size_t len, bool ascii)
{
}
static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
					const void *buf, size_t len)
{
}

#endif

#if defined(CONFIG_DYNAMIC_DEBUG)
#define print_hex_dump_debug(prefix_str, prefix_type, rowsize,	\
			     groupsize, buf, len, ascii)	\
	dynamic_hex_dump(prefix_str, prefix_type, rowsize,	\
			 groupsize, buf, len, ascii)
#else
#define print_hex_dump_debug(prefix_str, prefix_type, rowsize,		\
			     groupsize, buf, len, ascii)		\
	print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize,	\
		       groupsize, buf, len, ascii)
#endif /* defined(CONFIG_DYNAMIC_DEBUG) */

#endif
Commit	Line	Data
968ab183 LT	1	#ifndef __KERNEL_PRINTK__
	2	#define __KERNEL_PRINTK__
	3
162a7e75	4	#include <linux/init.h>
314ba352	5	#include <linux/kern_levels.h>
162a7e75	6
968ab183 LT	7	extern const char linux_banner[];
	8	extern const char linux_proc_banner[];
	9
acc8fa41 JP	10	static inline int printk_get_level(const char *buffer)
acc8fa41 JP	11	{
04d2c8c8	12	if (buffer[0] == KERN_SOH_ASCII && buffer[1]) {
acc8fa41 JP	13	switch (buffer[1]) {
	14	case '0' ... '7':
	15	case 'd': /* KERN_DEFAULT */
acc8fa41 JP	16	return buffer[1];
	17	}
	18	}
	19	return 0;
	20	}
	21
	22	static inline const char printk_skip_level(const char buffer)
	23	{
	24	if (printk_get_level(buffer)) {
	25	switch (buffer[1]) {
	26	case '0' ... '7':
	27	case 'd': /* KERN_DEFAULT */
04d2c8c8	28	return buffer + 2;
acc8fa41 JP	29	}
	30	}
	31	return buffer;
	32	}
	33
968ab183 LT	34	extern int console_printk[];
	35
	36	#define console_loglevel (console_printk[0])
	37	#define default_message_loglevel (console_printk[1])
	38	#define minimum_console_loglevel (console_printk[2])
	39	#define default_console_loglevel (console_printk[3])
	40
a9747cc3 JP	41	static inline void console_silent(void)
	42	{
	43	console_loglevel = 0;
	44	}
	45
	46	static inline void console_verbose(void)
	47	{
	48	if (console_loglevel)
	49	console_loglevel = 15;
	50	}
	51
968ab183 LT	52	struct va_format {
	53	const char *fmt;
	54	va_list *va;
	55	};
	56
	57	/*
	58	* FW_BUG
	59	* Add this to a message where you are sure the firmware is buggy or behaves
	60	* really stupid or out of spec. Be aware that the responsible BIOS developer
	61	* should be able to fix this issue or at least get a concrete idea of the
	62	* problem by reading your message without the need of looking at the kernel
	63	* code.
	64	*
	65	* Use it for definite and high priority BIOS bugs.
	66	*
	67	* FW_WARN
	68	* Use it for not that clear (e.g. could the kernel messed up things already?)
	69	* and medium priority BIOS bugs.
	70	*
	71	* FW_INFO
	72	* Use this one if you want to tell the user or vendor about something
	73	* suspicious, but generally harmless related to the firmware.
	74	*
	75	* Use it for information or very low priority BIOS bugs.
	76	*/
	77	#define FW_BUG "[Firmware Bug]: "
	78	#define FW_WARN "[Firmware Warn]: "
	79	#define FW_INFO "[Firmware Info]: "
	80
	81	/*
	82	* HW_ERR
	83	* Add this to a message for hardware errors, so that user can report
	84	* it to hardware vendor instead of LKML or software vendor.
	85	*/
	86	#define HW_ERR "[Hardware Error]: "
	87
5264f2f7 JP	88	/*
	89	* Dummy printk for disabled debugging statements to use whilst maintaining
	90	* gcc's format and side-effect checking.
	91	*/
b9075fa9	92	static inline __printf(1, 2)
5264f2f7 JP	93	int no_printk(const char *fmt, ...)
	94	{
	95	return 0;
	96	}
	97
d0380e6c	98	#ifdef CONFIG_EARLY_PRINTK
b9075fa9	99	extern asmlinkage __printf(1, 2)
5264f2f7	100	void early_printk(const char *fmt, ...);
d0380e6c TG	101	void early_vprintk(const char *fmt, va_list ap);
	102	#else
	103	static inline __printf(1, 2) __cold
	104	void early_printk(const char *s, ...) { }
	105	#endif
5264f2f7	106
968ab183	107	#ifdef CONFIG_PRINTK
7ff9554b KS	108	asmlinkage __printf(5, 0)
	109	int vprintk_emit(int facility, int level,
	110	const char *dict, size_t dictlen,
	111	const char *fmt, va_list args);
	112
b9075fa9	113	asmlinkage __printf(1, 0)
5264f2f7	114	int vprintk(const char *fmt, va_list args);
7ff9554b KS	115
	116	asmlinkage __printf(5, 6) __cold
	117	asmlinkage int printk_emit(int facility, int level,
	118	const char *dict, size_t dictlen,
	119	const char *fmt, ...);
	120
b9075fa9	121	asmlinkage __printf(1, 2) __cold
5264f2f7	122	int printk(const char *fmt, ...);
968ab183	123
3ccf3e83 PZ	124	/*
	125	* Special printk facility for scheduler use only, _DO_NOT_USE_ !
	126	*/
	127	__printf(1, 2) __cold int printk_sched(const char *fmt, ...);
	128
968ab183 LT	129	/*
	130	* Please don't use printk_ratelimit(), because it shares ratelimiting state
	131	* with all other unrelated printk_ratelimit() callsites. Instead use
	132	* printk_ratelimited() or plain old __ratelimit().
	133	*/
	134	extern int __printk_ratelimit(const char *func);
	135	#define printk_ratelimit() __printk_ratelimit(__func__)
	136	extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
	137	unsigned int interval_msec);
	138
	139	extern int printk_delay_msec;
	140	extern int dmesg_restrict;
455cd5ab	141	extern int kptr_restrict;
968ab183	142
dc72c32e FW	143	extern void wake_up_klogd(void);
dc72c32e FW	144
968ab183	145	void log_buf_kexec_setup(void);
162a7e75	146	void __init setup_log_buf(int early);
968ab183	147	#else
b9075fa9	148	static inline __printf(1, 0)
5264f2f7 JP	149	int vprintk(const char *s, va_list args)
	150	{
	151	return 0;
	152	}
b9075fa9	153	static inline __printf(1, 2) __cold
5264f2f7 JP	154	int printk(const char *s, ...)
	155	{
	156	return 0;
	157	}
3ccf3e83 PZ	158	static inline __printf(1, 2) __cold
	159	int printk_sched(const char *s, ...)
	160	{
	161	return 0;
	162	}
5264f2f7 JP	163	static inline int printk_ratelimit(void)
	164	{
	165	return 0;
	166	}
	167	static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies,
	168	unsigned int interval_msec)
	169	{
	170	return false;
	171	}
968ab183	172
dc72c32e FW	173	static inline void wake_up_klogd(void)
	174	{
	175	}
	176
968ab183 LT	177	static inline void log_buf_kexec_setup(void)
	178	{
	179	}
162a7e75 MT	180
	181	static inline void setup_log_buf(int early)
	182	{
	183	}
968ab183 LT	184	#endif
968ab183 LT	185
968ab183 LT	186	extern void dump_stack(void) __cold;
968ab183 LT	187
968ab183 LT	188	#ifndef pr_fmt
	189	#define pr_fmt(fmt) fmt
	190	#endif
	191
	192	#define pr_emerg(fmt, ...) \
a3f938bf	193	printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
968ab183	194	#define pr_alert(fmt, ...) \
a3f938bf	195	printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
968ab183	196	#define pr_crit(fmt, ...) \
a3f938bf	197	printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
968ab183	198	#define pr_err(fmt, ...) \
a3f938bf	199	printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
968ab183	200	#define pr_warning(fmt, ...) \
a3f938bf	201	printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	202	#define pr_warn pr_warning
968ab183 LT	203	#define pr_notice(fmt, ...) \
a3f938bf	204	printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
968ab183	205	#define pr_info(fmt, ...) \
a3f938bf	206	printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	207	#define pr_cont(fmt, ...) \
	208	printk(KERN_CONT fmt, ##__VA_ARGS__)
	209
	210	/* pr_devel() should produce zero code unless DEBUG is defined */
	211	#ifdef DEBUG
	212	#define pr_devel(fmt, ...) \
	213	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	214	#else
	215	#define pr_devel(fmt, ...) \
5264f2f7	216	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	217	#endif
	218
	219	/* If you are writing a driver, please use dev_dbg instead */
b558c96f	220	#if defined(CONFIG_DYNAMIC_DEBUG)
968ab183 LT	221	/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
	222	#define pr_debug(fmt, ...) \
	223	dynamic_pr_debug(fmt, ##__VA_ARGS__)
b558c96f JC	224	#elif defined(DEBUG)
	225	#define pr_debug(fmt, ...) \
	226	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	227	#else
968ab183 LT	228	#define pr_debug(fmt, ...) \
5264f2f7	229	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	230	#endif
968ab183 LT	231
16cb839f JP	232	/*
	233	* Print a one-time message (analogous to WARN_ONCE() et al):
	234	*/
	235
	236	#ifdef CONFIG_PRINTK
	237	#define printk_once(fmt, ...) \
	238	({ \
	239	static bool __print_once; \
	240	\
	241	if (!__print_once) { \
	242	__print_once = true; \
	243	printk(fmt, ##__VA_ARGS__); \
	244	} \
	245	})
	246	#else
	247	#define printk_once(fmt, ...) \
	248	no_printk(fmt, ##__VA_ARGS__)
	249	#endif
	250
	251	#define pr_emerg_once(fmt, ...) \
	252	printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
	253	#define pr_alert_once(fmt, ...) \
	254	printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
	255	#define pr_crit_once(fmt, ...) \
	256	printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
	257	#define pr_err_once(fmt, ...) \
	258	printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
	259	#define pr_warn_once(fmt, ...) \
	260	printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
	261	#define pr_notice_once(fmt, ...) \
	262	printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
	263	#define pr_info_once(fmt, ...) \
	264	printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
	265	#define pr_cont_once(fmt, ...) \
	266	printk_once(KERN_CONT pr_fmt(fmt), ##__VA_ARGS__)
36d308d8 MG	267
	268	#if defined(DEBUG)
	269	#define pr_devel_once(fmt, ...) \
	270	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	271	#else
	272	#define pr_devel_once(fmt, ...) \
	273	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	274	#endif
	275
16cb839f JP	276	/* If you are writing a driver, please use dev_dbg instead */
	277	#if defined(DEBUG)
	278	#define pr_debug_once(fmt, ...) \
	279	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	280	#else
	281	#define pr_debug_once(fmt, ...) \
	282	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	283	#endif
	284
968ab183 LT	285	/*
	286	* ratelimited messages with local ratelimit_state,
	287	* no local ratelimit_state used in the !PRINTK case
	288	*/
	289	#ifdef CONFIG_PRINTK
6ec42a56 JP	290	#define printk_ratelimited(fmt, ...) \
6ec42a56 JP	291	({ \
968ab183 LT	292	static DEFINE_RATELIMIT_STATE(_rs, \
	293	DEFAULT_RATELIMIT_INTERVAL, \
	294	DEFAULT_RATELIMIT_BURST); \
	295	\
	296	if (__ratelimit(&_rs)) \
	297	printk(fmt, ##__VA_ARGS__); \
	298	})
	299	#else
6ec42a56 JP	300	#define printk_ratelimited(fmt, ...) \
6ec42a56 JP	301	no_printk(fmt, ##__VA_ARGS__)
968ab183 LT	302	#endif
968ab183 LT	303
6ec42a56	304	#define pr_emerg_ratelimited(fmt, ...) \
968ab183	305	printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	306	#define pr_alert_ratelimited(fmt, ...) \
968ab183	307	printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	308	#define pr_crit_ratelimited(fmt, ...) \
968ab183	309	printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	310	#define pr_err_ratelimited(fmt, ...) \
968ab183	311	printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	312	#define pr_warn_ratelimited(fmt, ...) \
968ab183	313	printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	314	#define pr_notice_ratelimited(fmt, ...) \
968ab183	315	printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	316	#define pr_info_ratelimited(fmt, ...) \
968ab183 LT	317	printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	318	/* no pr_cont_ratelimited, don't do that... */
36d308d8 MG	319
	320	#if defined(DEBUG)
	321	#define pr_devel_ratelimited(fmt, ...) \
	322	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	323	#else
	324	#define pr_devel_ratelimited(fmt, ...) \
	325	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	326	#endif
	327
968ab183 LT	328	/* If you are writing a driver, please use dev_dbg instead */
968ab183 LT	329	#if defined(DEBUG)
6ec42a56	330	#define pr_debug_ratelimited(fmt, ...) \
968ab183 LT	331	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	332	#else
	333	#define pr_debug_ratelimited(fmt, ...) \
5264f2f7	334	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	335	#endif
968ab183 LT	336
e11fea92 KS	337	extern const struct file_operations kmsg_fops;
e11fea92 KS	338
ac83ed68 JP	339	enum {
	340	DUMP_PREFIX_NONE,
	341	DUMP_PREFIX_ADDRESS,
	342	DUMP_PREFIX_OFFSET
	343	};
	344	extern void hex_dump_to_buffer(const void *buf, size_t len,
	345	int rowsize, int groupsize,
	346	char *linebuf, size_t linebuflen, bool ascii);
	347	#ifdef CONFIG_PRINTK
	348	extern void print_hex_dump(const char level, const char prefix_str,
	349	int prefix_type, int rowsize, int groupsize,
	350	const void *buf, size_t len, bool ascii);
7a555613 VK	351	#if defined(CONFIG_DYNAMIC_DEBUG)
	352	#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \
	353	dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true)
	354	#else
ac83ed68 JP	355	extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
ac83ed68 JP	356	const void *buf, size_t len);
7a555613	357	#endif /* defined(CONFIG_DYNAMIC_DEBUG) */
ac83ed68 JP	358	#else
	359	static inline void print_hex_dump(const char level, const char prefix_str,
	360	int prefix_type, int rowsize, int groupsize,
	361	const void *buf, size_t len, bool ascii)
	362	{
	363	}
	364	static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
	365	const void *buf, size_t len)
	366	{
	367	}
	368
	369	#endif
	370
7a555613 VK	371	#if defined(CONFIG_DYNAMIC_DEBUG)
	372	#define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
	373	groupsize, buf, len, ascii) \
	374	dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
	375	groupsize, buf, len, ascii)
	376	#else
	377	#define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
	378	groupsize, buf, len, ascii) \
	379	print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \
	380	groupsize, buf, len, ascii)
	381	#endif /* defined(CONFIG_DYNAMIC_DEBUG) */
	382
968ab183	383	#endif