[mirror_ubuntu-zesty-kernel.git] / include / linux / printk.h

#ifndef __KERNEL_PRINTK__
#define __KERNEL_PRINTK__

#include <stdarg.h>
#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);
void dump_stack_print_info(const char *log_lvl);
#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)
{
}

static inline void dump_stack_print_info(const char *log_lvl)
{
}
#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
1b2c289b	4	#include <stdarg.h>
162a7e75	5	#include <linux/init.h>
314ba352	6	#include <linux/kern_levels.h>
162a7e75	7
968ab183 LT	8	extern const char linux_banner[];
	9	extern const char linux_proc_banner[];
	10
acc8fa41 JP	11	static inline int printk_get_level(const char *buffer)
acc8fa41 JP	12	{
04d2c8c8	13	if (buffer[0] == KERN_SOH_ASCII && buffer[1]) {
acc8fa41 JP	14	switch (buffer[1]) {
	15	case '0' ... '7':
	16	case 'd': /* KERN_DEFAULT */
acc8fa41 JP	17	return buffer[1];
	18	}
	19	}
	20	return 0;
	21	}
	22
	23	static inline const char printk_skip_level(const char buffer)
	24	{
	25	if (printk_get_level(buffer)) {
	26	switch (buffer[1]) {
	27	case '0' ... '7':
	28	case 'd': /* KERN_DEFAULT */
04d2c8c8	29	return buffer + 2;
acc8fa41 JP	30	}
	31	}
	32	return buffer;
	33	}
	34
968ab183 LT	35	extern int console_printk[];
	36
	37	#define console_loglevel (console_printk[0])
	38	#define default_message_loglevel (console_printk[1])
	39	#define minimum_console_loglevel (console_printk[2])
	40	#define default_console_loglevel (console_printk[3])
	41
a9747cc3 JP	42	static inline void console_silent(void)
	43	{
	44	console_loglevel = 0;
	45	}
	46
	47	static inline void console_verbose(void)
	48	{
	49	if (console_loglevel)
	50	console_loglevel = 15;
	51	}
	52
968ab183 LT	53	struct va_format {
	54	const char *fmt;
	55	va_list *va;
	56	};
	57
	58	/*
	59	* FW_BUG
	60	* Add this to a message where you are sure the firmware is buggy or behaves
	61	* really stupid or out of spec. Be aware that the responsible BIOS developer
	62	* should be able to fix this issue or at least get a concrete idea of the
	63	* problem by reading your message without the need of looking at the kernel
	64	* code.
	65	*
	66	* Use it for definite and high priority BIOS bugs.
	67	*
	68	* FW_WARN
	69	* Use it for not that clear (e.g. could the kernel messed up things already?)
	70	* and medium priority BIOS bugs.
	71	*
	72	* FW_INFO
	73	* Use this one if you want to tell the user or vendor about something
	74	* suspicious, but generally harmless related to the firmware.
	75	*
	76	* Use it for information or very low priority BIOS bugs.
	77	*/
	78	#define FW_BUG "[Firmware Bug]: "
	79	#define FW_WARN "[Firmware Warn]: "
	80	#define FW_INFO "[Firmware Info]: "
	81
	82	/*
	83	* HW_ERR
	84	* Add this to a message for hardware errors, so that user can report
	85	* it to hardware vendor instead of LKML or software vendor.
	86	*/
	87	#define HW_ERR "[Hardware Error]: "
	88
5264f2f7 JP	89	/*
	90	* Dummy printk for disabled debugging statements to use whilst maintaining
	91	* gcc's format and side-effect checking.
	92	*/
b9075fa9	93	static inline __printf(1, 2)
5264f2f7 JP	94	int no_printk(const char *fmt, ...)
	95	{
	96	return 0;
	97	}
	98
d0380e6c	99	#ifdef CONFIG_EARLY_PRINTK
b9075fa9	100	extern asmlinkage __printf(1, 2)
5264f2f7	101	void early_printk(const char *fmt, ...);
d0380e6c TG	102	void early_vprintk(const char *fmt, va_list ap);
	103	#else
	104	static inline __printf(1, 2) __cold
	105	void early_printk(const char *s, ...) { }
	106	#endif
5264f2f7	107
968ab183	108	#ifdef CONFIG_PRINTK
7ff9554b KS	109	asmlinkage __printf(5, 0)
	110	int vprintk_emit(int facility, int level,
	111	const char *dict, size_t dictlen,
	112	const char *fmt, va_list args);
	113
b9075fa9	114	asmlinkage __printf(1, 0)
5264f2f7	115	int vprintk(const char *fmt, va_list args);
7ff9554b KS	116
	117	asmlinkage __printf(5, 6) __cold
	118	asmlinkage int printk_emit(int facility, int level,
	119	const char *dict, size_t dictlen,
	120	const char *fmt, ...);
	121
b9075fa9	122	asmlinkage __printf(1, 2) __cold
5264f2f7	123	int printk(const char *fmt, ...);
968ab183	124
3ccf3e83 PZ	125	/*
	126	* Special printk facility for scheduler use only, _DO_NOT_USE_ !
	127	*/
	128	__printf(1, 2) __cold int printk_sched(const char *fmt, ...);
	129
968ab183 LT	130	/*
	131	* Please don't use printk_ratelimit(), because it shares ratelimiting state
	132	* with all other unrelated printk_ratelimit() callsites. Instead use
	133	* printk_ratelimited() or plain old __ratelimit().
	134	*/
	135	extern int __printk_ratelimit(const char *func);
	136	#define printk_ratelimit() __printk_ratelimit(__func__)
	137	extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
	138	unsigned int interval_msec);
	139
	140	extern int printk_delay_msec;
	141	extern int dmesg_restrict;
455cd5ab	142	extern int kptr_restrict;
968ab183	143
dc72c32e FW	144	extern void wake_up_klogd(void);
dc72c32e FW	145
968ab183	146	void log_buf_kexec_setup(void);
162a7e75	147	void __init setup_log_buf(int early);
196779b9	148	void dump_stack_print_info(const char *log_lvl);
968ab183	149	#else
b9075fa9	150	static inline __printf(1, 0)
5264f2f7 JP	151	int vprintk(const char *s, va_list args)
	152	{
	153	return 0;
	154	}
b9075fa9	155	static inline __printf(1, 2) __cold
5264f2f7 JP	156	int printk(const char *s, ...)
	157	{
	158	return 0;
	159	}
3ccf3e83 PZ	160	static inline __printf(1, 2) __cold
	161	int printk_sched(const char *s, ...)
	162	{
	163	return 0;
	164	}
5264f2f7 JP	165	static inline int printk_ratelimit(void)
	166	{
	167	return 0;
	168	}
	169	static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies,
	170	unsigned int interval_msec)
	171	{
	172	return false;
	173	}
968ab183	174
dc72c32e FW	175	static inline void wake_up_klogd(void)
	176	{
	177	}
	178
968ab183 LT	179	static inline void log_buf_kexec_setup(void)
	180	{
	181	}
162a7e75 MT	182
	183	static inline void setup_log_buf(int early)
	184	{
	185	}
196779b9 TH	186
	187	static inline void dump_stack_print_info(const char *log_lvl)
	188	{
	189	}
968ab183 LT	190	#endif
968ab183 LT	191
968ab183 LT	192	extern void dump_stack(void) __cold;
968ab183 LT	193
968ab183 LT	194	#ifndef pr_fmt
	195	#define pr_fmt(fmt) fmt
	196	#endif
	197
	198	#define pr_emerg(fmt, ...) \
a3f938bf	199	printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
968ab183	200	#define pr_alert(fmt, ...) \
a3f938bf	201	printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
968ab183	202	#define pr_crit(fmt, ...) \
a3f938bf	203	printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
968ab183	204	#define pr_err(fmt, ...) \
a3f938bf	205	printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
968ab183	206	#define pr_warning(fmt, ...) \
a3f938bf	207	printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	208	#define pr_warn pr_warning
968ab183 LT	209	#define pr_notice(fmt, ...) \
a3f938bf	210	printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
968ab183	211	#define pr_info(fmt, ...) \
a3f938bf	212	printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	213	#define pr_cont(fmt, ...) \
	214	printk(KERN_CONT fmt, ##__VA_ARGS__)
	215
	216	/* pr_devel() should produce zero code unless DEBUG is defined */
	217	#ifdef DEBUG
	218	#define pr_devel(fmt, ...) \
	219	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	220	#else
	221	#define pr_devel(fmt, ...) \
5264f2f7	222	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	223	#endif
	224
	225	/* If you are writing a driver, please use dev_dbg instead */
b558c96f	226	#if defined(CONFIG_DYNAMIC_DEBUG)
968ab183 LT	227	/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
	228	#define pr_debug(fmt, ...) \
	229	dynamic_pr_debug(fmt, ##__VA_ARGS__)
b558c96f JC	230	#elif defined(DEBUG)
	231	#define pr_debug(fmt, ...) \
	232	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	233	#else
968ab183 LT	234	#define pr_debug(fmt, ...) \
5264f2f7	235	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	236	#endif
968ab183 LT	237
16cb839f JP	238	/*
	239	* Print a one-time message (analogous to WARN_ONCE() et al):
	240	*/
	241
	242	#ifdef CONFIG_PRINTK
	243	#define printk_once(fmt, ...) \
	244	({ \
	245	static bool __print_once; \
	246	\
	247	if (!__print_once) { \
	248	__print_once = true; \
	249	printk(fmt, ##__VA_ARGS__); \
	250	} \
	251	})
	252	#else
	253	#define printk_once(fmt, ...) \
	254	no_printk(fmt, ##__VA_ARGS__)
	255	#endif
	256
	257	#define pr_emerg_once(fmt, ...) \
	258	printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
	259	#define pr_alert_once(fmt, ...) \
	260	printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
	261	#define pr_crit_once(fmt, ...) \
	262	printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
	263	#define pr_err_once(fmt, ...) \
	264	printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
	265	#define pr_warn_once(fmt, ...) \
	266	printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
	267	#define pr_notice_once(fmt, ...) \
	268	printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
	269	#define pr_info_once(fmt, ...) \
	270	printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
	271	#define pr_cont_once(fmt, ...) \
	272	printk_once(KERN_CONT pr_fmt(fmt), ##__VA_ARGS__)
36d308d8 MG	273
	274	#if defined(DEBUG)
	275	#define pr_devel_once(fmt, ...) \
	276	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	277	#else
	278	#define pr_devel_once(fmt, ...) \
	279	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	280	#endif
	281
16cb839f JP	282	/* If you are writing a driver, please use dev_dbg instead */
	283	#if defined(DEBUG)
	284	#define pr_debug_once(fmt, ...) \
	285	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	286	#else
	287	#define pr_debug_once(fmt, ...) \
	288	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	289	#endif
	290
968ab183 LT	291	/*
	292	* ratelimited messages with local ratelimit_state,
	293	* no local ratelimit_state used in the !PRINTK case
	294	*/
	295	#ifdef CONFIG_PRINTK
6ec42a56 JP	296	#define printk_ratelimited(fmt, ...) \
6ec42a56 JP	297	({ \
968ab183 LT	298	static DEFINE_RATELIMIT_STATE(_rs, \
	299	DEFAULT_RATELIMIT_INTERVAL, \
	300	DEFAULT_RATELIMIT_BURST); \
	301	\
	302	if (__ratelimit(&_rs)) \
	303	printk(fmt, ##__VA_ARGS__); \
	304	})
	305	#else
6ec42a56 JP	306	#define printk_ratelimited(fmt, ...) \
6ec42a56 JP	307	no_printk(fmt, ##__VA_ARGS__)
968ab183 LT	308	#endif
968ab183 LT	309
6ec42a56	310	#define pr_emerg_ratelimited(fmt, ...) \
968ab183	311	printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	312	#define pr_alert_ratelimited(fmt, ...) \
968ab183	313	printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	314	#define pr_crit_ratelimited(fmt, ...) \
968ab183	315	printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	316	#define pr_err_ratelimited(fmt, ...) \
968ab183	317	printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	318	#define pr_warn_ratelimited(fmt, ...) \
968ab183	319	printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	320	#define pr_notice_ratelimited(fmt, ...) \
968ab183	321	printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
6ec42a56	322	#define pr_info_ratelimited(fmt, ...) \
968ab183 LT	323	printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	324	/* no pr_cont_ratelimited, don't do that... */
36d308d8 MG	325
	326	#if defined(DEBUG)
	327	#define pr_devel_ratelimited(fmt, ...) \
	328	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	329	#else
	330	#define pr_devel_ratelimited(fmt, ...) \
	331	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	332	#endif
	333
968ab183 LT	334	/* If you are writing a driver, please use dev_dbg instead */
968ab183 LT	335	#if defined(DEBUG)
6ec42a56	336	#define pr_debug_ratelimited(fmt, ...) \
968ab183 LT	337	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	338	#else
	339	#define pr_debug_ratelimited(fmt, ...) \
5264f2f7	340	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
968ab183 LT	341	#endif
968ab183 LT	342
e11fea92 KS	343	extern const struct file_operations kmsg_fops;
e11fea92 KS	344
ac83ed68 JP	345	enum {
	346	DUMP_PREFIX_NONE,
	347	DUMP_PREFIX_ADDRESS,
	348	DUMP_PREFIX_OFFSET
	349	};
	350	extern void hex_dump_to_buffer(const void *buf, size_t len,
	351	int rowsize, int groupsize,
	352	char *linebuf, size_t linebuflen, bool ascii);
	353	#ifdef CONFIG_PRINTK
	354	extern void print_hex_dump(const char level, const char prefix_str,
	355	int prefix_type, int rowsize, int groupsize,
	356	const void *buf, size_t len, bool ascii);
7a555613 VK	357	#if defined(CONFIG_DYNAMIC_DEBUG)
	358	#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \
	359	dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true)
	360	#else
ac83ed68 JP	361	extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
ac83ed68 JP	362	const void *buf, size_t len);
7a555613	363	#endif /* defined(CONFIG_DYNAMIC_DEBUG) */
ac83ed68 JP	364	#else
	365	static inline void print_hex_dump(const char level, const char prefix_str,
	366	int prefix_type, int rowsize, int groupsize,
	367	const void *buf, size_t len, bool ascii)
	368	{
	369	}
	370	static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
	371	const void *buf, size_t len)
	372	{
	373	}
	374
	375	#endif
	376
7a555613 VK	377	#if defined(CONFIG_DYNAMIC_DEBUG)
	378	#define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
	379	groupsize, buf, len, ascii) \
	380	dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
	381	groupsize, buf, len, ascii)
	382	#else
	383	#define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
	384	groupsize, buf, len, ascii) \
	385	print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \
	386	groupsize, buf, len, ascii)
	387	#endif /* defined(CONFIG_DYNAMIC_DEBUG) */
	388
968ab183	389	#endif