[mirror_ubuntu-bionic-kernel.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;
}

extern asmlinkage __printf(1, 2)
void early_printk(const char *fmt, ...);

#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;

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 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 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 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);
extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
				 const void *buf, size_t len);
#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

#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
b9075fa9	98	extern asmlinkage __printf(1, 2)
5264f2f7 JP	99	void early_printk(const char *fmt, ...);
5264f2f7 JP	100
968ab183	101	#ifdef CONFIG_PRINTK
7ff9554b KS	102	asmlinkage __printf(5, 0)
	103	int vprintk_emit(int facility, int level,
	104	const char *dict, size_t dictlen,
	105	const char *fmt, va_list args);
	106
b9075fa9	107	asmlinkage __printf(1, 0)
5264f2f7	108	int vprintk(const char *fmt, va_list args);
7ff9554b KS	109
	110	asmlinkage __printf(5, 6) __cold
	111	asmlinkage int printk_emit(int facility, int level,
	112	const char *dict, size_t dictlen,
	113	const char *fmt, ...);
	114
b9075fa9	115	asmlinkage __printf(1, 2) __cold
5264f2f7	116	int printk(const char *fmt, ...);
968ab183	117
3ccf3e83 PZ	118	/*
	119	* Special printk facility for scheduler use only, _DO_NOT_USE_ !
	120	*/
	121	__printf(1, 2) __cold int printk_sched(const char *fmt, ...);
	122
968ab183 LT	123	/*
	124	* Please don't use printk_ratelimit(), because it shares ratelimiting state
	125	* with all other unrelated printk_ratelimit() callsites. Instead use
	126	* printk_ratelimited() or plain old __ratelimit().
	127	*/
	128	extern int __printk_ratelimit(const char *func);
	129	#define printk_ratelimit() __printk_ratelimit(__func__)
	130	extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
	131	unsigned int interval_msec);
	132
	133	extern int printk_delay_msec;
	134	extern int dmesg_restrict;
455cd5ab	135	extern int kptr_restrict;
968ab183	136
968ab183	137	void log_buf_kexec_setup(void);
162a7e75	138	void __init setup_log_buf(int early);
968ab183	139	#else
b9075fa9	140	static inline __printf(1, 0)
5264f2f7 JP	141	int vprintk(const char *s, va_list args)
	142	{
	143	return 0;
	144	}
b9075fa9	145	static inline __printf(1, 2) __cold
5264f2f7 JP	146	int printk(const char *s, ...)
	147	{
	148	return 0;
	149	}
3ccf3e83 PZ	150	static inline __printf(1, 2) __cold
	151	int printk_sched(const char *s, ...)
	152	{
	153	return 0;
	154	}
5264f2f7 JP	155	static inline int printk_ratelimit(void)
	156	{
	157	return 0;
	158	}
	159	static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies,
	160	unsigned int interval_msec)
	161	{
	162	return false;
	163	}
968ab183	164
968ab183 LT	165	static inline void log_buf_kexec_setup(void)
	166	{
	167	}
162a7e75 MT	168
	169	static inline void setup_log_buf(int early)
	170	{
	171	}
968ab183 LT	172	#endif
968ab183 LT	173
968ab183 LT	174	extern void dump_stack(void) __cold;
968ab183 LT	175
968ab183 LT	176	#ifndef pr_fmt
	177	#define pr_fmt(fmt) fmt
	178	#endif
	179
	180	#define pr_emerg(fmt, ...) \
a3f938bf	181	printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
968ab183	182	#define pr_alert(fmt, ...) \
a3f938bf	183	printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
968ab183	184	#define pr_crit(fmt, ...) \
a3f938bf	185	printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
968ab183	186	#define pr_err(fmt, ...) \
a3f938bf	187	printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
968ab183	188	#define pr_warning(fmt, ...) \
a3f938bf	189	printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	190	#define pr_warn pr_warning
968ab183 LT	191	#define pr_notice(fmt, ...) \
a3f938bf	192	printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
968ab183	193	#define pr_info(fmt, ...) \
a3f938bf	194	printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	195	#define pr_cont(fmt, ...) \
	196	printk(KERN_CONT fmt, ##__VA_ARGS__)
	197
	198	/* pr_devel() should produce zero code unless DEBUG is defined */
	199	#ifdef DEBUG
	200	#define pr_devel(fmt, ...) \
	201	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	202	#else
	203	#define pr_devel(fmt, ...) \
5264f2f7	204	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	205	#endif
	206
	207	/* If you are writing a driver, please use dev_dbg instead */
b558c96f	208	#if defined(CONFIG_DYNAMIC_DEBUG)
968ab183 LT	209	/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
	210	#define pr_debug(fmt, ...) \
	211	dynamic_pr_debug(fmt, ##__VA_ARGS__)
b558c96f JC	212	#elif defined(DEBUG)
	213	#define pr_debug(fmt, ...) \
	214	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	215	#else
968ab183 LT	216	#define pr_debug(fmt, ...) \
5264f2f7	217	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	218	#endif
968ab183 LT	219
16cb839f JP	220	/*
	221	* Print a one-time message (analogous to WARN_ONCE() et al):
	222	*/
	223
	224	#ifdef CONFIG_PRINTK
	225	#define printk_once(fmt, ...) \
	226	({ \
	227	static bool __print_once; \
	228	\
	229	if (!__print_once) { \
	230	__print_once = true; \
	231	printk(fmt, ##__VA_ARGS__); \
	232	} \
	233	})
	234	#else
	235	#define printk_once(fmt, ...) \
	236	no_printk(fmt, ##__VA_ARGS__)
	237	#endif
	238
	239	#define pr_emerg_once(fmt, ...) \
	240	printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
	241	#define pr_alert_once(fmt, ...) \
	242	printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
	243	#define pr_crit_once(fmt, ...) \
	244	printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
	245	#define pr_err_once(fmt, ...) \
	246	printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
	247	#define pr_warn_once(fmt, ...) \
	248	printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
	249	#define pr_notice_once(fmt, ...) \
	250	printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
	251	#define pr_info_once(fmt, ...) \
	252	printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
	253	#define pr_cont_once(fmt, ...) \
	254	printk_once(KERN_CONT pr_fmt(fmt), ##__VA_ARGS__)
	255	/* If you are writing a driver, please use dev_dbg instead */
	256	#if defined(DEBUG)
	257	#define pr_debug_once(fmt, ...) \
	258	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	259	#else
	260	#define pr_debug_once(fmt, ...) \
	261	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	262	#endif
	263
968ab183 LT	264	/*
	265	* ratelimited messages with local ratelimit_state,
	266	* no local ratelimit_state used in the !PRINTK case
	267	*/
	268	#ifdef CONFIG_PRINTK
6ec42a56 JP	269	#define printk_ratelimited(fmt, ...) \
6ec42a56 JP	270	({ \
968ab183 LT	271	static DEFINE_RATELIMIT_STATE(_rs, \
	272	DEFAULT_RATELIMIT_INTERVAL, \
	273	DEFAULT_RATELIMIT_BURST); \
	274	\
	275	if (__ratelimit(&_rs)) \
	276	printk(fmt, ##__VA_ARGS__); \
	277	})
	278	#else
6ec42a56 JP	279	#define printk_ratelimited(fmt, ...) \
6ec42a56 JP	280	no_printk(fmt, ##__VA_ARGS__)
968ab183 LT	281	#endif
968ab183 LT	282
6ec42a56	283	#define pr_emerg_ratelimited(fmt, ...) \
968ab183	284	printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	285	#define pr_alert_ratelimited(fmt, ...) \
968ab183	286	printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	287	#define pr_crit_ratelimited(fmt, ...) \
968ab183	288	printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	289	#define pr_err_ratelimited(fmt, ...) \
968ab183	290	printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	291	#define pr_warn_ratelimited(fmt, ...) \
968ab183	292	printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	293	#define pr_notice_ratelimited(fmt, ...) \
968ab183	294	printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	295	#define pr_info_ratelimited(fmt, ...) \
968ab183 LT	296	printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
	297	/* no pr_cont_ratelimited, don't do that... */
	298	/* If you are writing a driver, please use dev_dbg instead */
	299	#if defined(DEBUG)
6ec42a56	300	#define pr_debug_ratelimited(fmt, ...) \
968ab183 LT	301	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	302	#else
	303	#define pr_debug_ratelimited(fmt, ...) \
5264f2f7	304	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	305	#endif
968ab183 LT	306
e11fea92 KS	307	extern const struct file_operations kmsg_fops;
e11fea92 KS	308
ac83ed68 JP	309	enum {
	310	DUMP_PREFIX_NONE,
	311	DUMP_PREFIX_ADDRESS,
	312	DUMP_PREFIX_OFFSET
	313	};
	314	extern void hex_dump_to_buffer(const void *buf, size_t len,
	315	int rowsize, int groupsize,
	316	char *linebuf, size_t linebuflen, bool ascii);
	317	#ifdef CONFIG_PRINTK
	318	extern void print_hex_dump(const char level, const char prefix_str,
	319	int prefix_type, int rowsize, int groupsize,
	320	const void *buf, size_t len, bool ascii);
	321	extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
	322	const void *buf, size_t len);
	323	#else
	324	static inline void print_hex_dump(const char level, const char prefix_str,
	325	int prefix_type, int rowsize, int groupsize,
	326	const void *buf, size_t len, bool ascii)
	327	{
	328	}
	329	static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
	330	const void *buf, size_t len)
	331	{
	332	}
	333
	334	#endif
	335
968ab183	336	#endif