1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __KERNEL_PRINTK__
3 #define __KERNEL_PRINTK__
5 #include <linux/stdarg.h>
6 #include <linux/init.h>
7 #include <linux/kern_levels.h>
8 #include <linux/linkage.h>
9 #include <linux/cache.h>
10 #include <linux/ratelimit_types.h>
11 #include <linux/once_lite.h>
13 extern const char linux_banner[];
14 extern const char linux_proc_banner[];
16 extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */
18 #define PRINTK_MAX_SINGLE_HEADER_LEN 2
20 static inline int printk_get_level(const char *buffer)
22 if (buffer[0] == KERN_SOH_ASCII && buffer[1]) {
25 case 'c': /* KERN_CONT */
32 static inline const char *printk_skip_level(const char *buffer)
34 if (printk_get_level(buffer))
40 static inline const char *printk_skip_headers(const char *buffer)
42 while (printk_get_level(buffer))
43 buffer = printk_skip_level(buffer);
48 #define CONSOLE_EXT_LOG_MAX 8192
50 /* printk's without a loglevel use this.. */
51 #define MESSAGE_LOGLEVEL_DEFAULT CONFIG_MESSAGE_LOGLEVEL_DEFAULT
53 /* We show everything that is MORE important than this.. */
54 #define CONSOLE_LOGLEVEL_SILENT 0 /* Mum's the word */
55 #define CONSOLE_LOGLEVEL_MIN 1 /* Minimum loglevel we let people use */
56 #define CONSOLE_LOGLEVEL_DEBUG 10 /* issue debug messages */
57 #define CONSOLE_LOGLEVEL_MOTORMOUTH 15 /* You can't shut this one up */
60 * Default used to be hard-coded at 7, quiet used to be hardcoded at 4,
61 * we're now allowing both to be set from kernel config.
63 #define CONSOLE_LOGLEVEL_DEFAULT CONFIG_CONSOLE_LOGLEVEL_DEFAULT
64 #define CONSOLE_LOGLEVEL_QUIET CONFIG_CONSOLE_LOGLEVEL_QUIET
66 extern int console_printk[];
68 #define console_loglevel (console_printk[0])
69 #define default_message_loglevel (console_printk[1])
70 #define minimum_console_loglevel (console_printk[2])
71 #define default_console_loglevel (console_printk[3])
73 extern void console_verbose(void);
75 /* strlen("ratelimit") + 1 */
76 #define DEVKMSG_STR_MAX_SIZE 10
77 extern char devkmsg_log_str[];
80 extern int suppress_printk;
89 * Add this to a message where you are sure the firmware is buggy or behaves
90 * really stupid or out of spec. Be aware that the responsible BIOS developer
91 * should be able to fix this issue or at least get a concrete idea of the
92 * problem by reading your message without the need of looking at the kernel
95 * Use it for definite and high priority BIOS bugs.
98 * Use it for not that clear (e.g. could the kernel messed up things already?)
99 * and medium priority BIOS bugs.
102 * Use this one if you want to tell the user or vendor about something
103 * suspicious, but generally harmless related to the firmware.
105 * Use it for information or very low priority BIOS bugs.
107 #define FW_BUG "[Firmware Bug]: "
108 #define FW_WARN "[Firmware Warn]: "
109 #define FW_INFO "[Firmware Info]: "
113 * Add this to a message for hardware errors, so that user can report
114 * it to hardware vendor instead of LKML or software vendor.
116 #define HW_ERR "[Hardware Error]: "
120 * Add this to a message whenever you want to warn user space about the use
121 * of a deprecated aspect of an API so they can stop using it
123 #define DEPRECATED "[Deprecated]: "
126 * Dummy printk for disabled debugging statements to use whilst maintaining
127 * gcc's format checking.
129 #define no_printk(fmt, ...) \
132 printk(fmt, ##__VA_ARGS__); \
136 #ifdef CONFIG_EARLY_PRINTK
137 extern asmlinkage __printf(1, 2)
138 void early_printk(const char *fmt, ...);
140 static inline __printf(1, 2) __cold
141 void early_printk(const char *s, ...) { }
144 struct dev_printk_info;
147 asmlinkage __printf(4, 0)
148 int vprintk_emit(int facility, int level,
149 const struct dev_printk_info *dev_info,
150 const char *fmt, va_list args);
152 asmlinkage __printf(1, 0)
153 int vprintk(const char *fmt, va_list args);
155 asmlinkage __printf(1, 2) __cold
156 int _printk(const char *fmt, ...);
159 * Special printk facility for scheduler/timekeeping use only, _DO_NOT_USE_ !
161 __printf(1, 2) __cold int _printk_deferred(const char *fmt, ...);
163 extern void __printk_safe_enter(void);
164 extern void __printk_safe_exit(void);
166 * The printk_deferred_enter/exit macros are available only as a hack for
167 * some code paths that need to defer all printk console printing. Interrupts
168 * must be disabled for the deferred duration.
170 #define printk_deferred_enter __printk_safe_enter
171 #define printk_deferred_exit __printk_safe_exit
173 extern void printk_prefer_direct_enter(void);
174 extern void printk_prefer_direct_exit(void);
176 extern bool pr_flush(int timeout_ms, bool reset_on_progress);
179 * Please don't use printk_ratelimit(), because it shares ratelimiting state
180 * with all other unrelated printk_ratelimit() callsites. Instead use
181 * printk_ratelimited() or plain old __ratelimit().
183 extern int __printk_ratelimit(const char *func);
184 #define printk_ratelimit() __printk_ratelimit(__func__)
185 extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
186 unsigned int interval_msec);
188 extern int printk_delay_msec;
189 extern int dmesg_restrict;
191 extern void wake_up_klogd(void);
193 char *log_buf_addr_get(void);
194 u32 log_buf_len_get(void);
195 void log_buf_vmcoreinfo_setup(void);
196 void __init setup_log_buf(int early);
197 __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...);
198 void dump_stack_print_info(const char *log_lvl);
199 void show_regs_print_info(const char *log_lvl);
200 extern asmlinkage void dump_stack_lvl(const char *log_lvl) __cold;
201 extern asmlinkage void dump_stack(void) __cold;
202 void printk_trigger_flush(void);
204 static inline __printf(1, 0)
205 int vprintk(const char *s, va_list args)
209 static inline __printf(1, 2) __cold
210 int _printk(const char *s, ...)
214 static inline __printf(1, 2) __cold
215 int _printk_deferred(const char *s, ...)
220 static inline void printk_deferred_enter(void)
224 static inline void printk_deferred_exit(void)
228 static inline void printk_prefer_direct_enter(void)
232 static inline void printk_prefer_direct_exit(void)
236 static inline bool pr_flush(int timeout_ms, bool reset_on_progress)
241 static inline int printk_ratelimit(void)
245 static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies,
246 unsigned int interval_msec)
251 static inline void wake_up_klogd(void)
255 static inline char *log_buf_addr_get(void)
260 static inline u32 log_buf_len_get(void)
265 static inline void log_buf_vmcoreinfo_setup(void)
269 static inline void setup_log_buf(int early)
273 static inline __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...)
277 static inline void dump_stack_print_info(const char *log_lvl)
281 static inline void show_regs_print_info(const char *log_lvl)
285 static inline void dump_stack_lvl(const char *log_lvl)
289 static inline void dump_stack(void)
292 static inline void printk_trigger_flush(void)
298 extern int __printk_cpu_sync_try_get(void);
299 extern void __printk_cpu_sync_wait(void);
300 extern void __printk_cpu_sync_put(void);
304 #define __printk_cpu_sync_try_get() true
305 #define __printk_cpu_sync_wait()
306 #define __printk_cpu_sync_put()
307 #endif /* CONFIG_SMP */
310 * printk_cpu_sync_get_irqsave() - Disable interrupts and acquire the printk
311 * cpu-reentrant spinning lock.
312 * @flags: Stack-allocated storage for saving local interrupt state,
313 * to be passed to printk_cpu_sync_put_irqrestore().
315 * If the lock is owned by another CPU, spin until it becomes available.
316 * Interrupts are restored while spinning.
318 * CAUTION: This function must be used carefully. It does not behave like a
319 * typical lock. Here are important things to watch out for...
321 * * This function is reentrant on the same CPU. Therefore the calling
322 * code must not assume exclusive access to data if code accessing the
323 * data can run reentrant or within NMI context on the same CPU.
325 * * If there exists usage of this function from NMI context, it becomes
326 * unsafe to perform any type of locking or spinning to wait for other
327 * CPUs after calling this function from any context. This includes
328 * using spinlocks or any other busy-waiting synchronization methods.
330 #define printk_cpu_sync_get_irqsave(flags) \
332 local_irq_save(flags); \
333 if (__printk_cpu_sync_try_get()) \
335 local_irq_restore(flags); \
336 __printk_cpu_sync_wait(); \
340 * printk_cpu_sync_put_irqrestore() - Release the printk cpu-reentrant spinning
341 * lock and restore interrupts.
342 * @flags: Caller's saved interrupt state, from printk_cpu_sync_get_irqsave().
344 #define printk_cpu_sync_put_irqrestore(flags) \
346 __printk_cpu_sync_put(); \
347 local_irq_restore(flags); \
350 extern int kptr_restrict;
353 * pr_fmt - used by the pr_*() macros to generate the printk format string
354 * @fmt: format string passed from a pr_*() macro
356 * This macro can be used to generate a unified format string for pr_*()
357 * macros. A common use is to prefix all pr_*() messages in a file with a common
358 * string. For example, defining this at the top of a source file:
360 * #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
362 * would prefix all pr_info, pr_emerg... messages in the file with the module
366 #define pr_fmt(fmt) fmt
371 #ifdef CONFIG_PRINTK_INDEX
379 * While printk and pr_* have the level stored in the string at compile
380 * time, some subsystems dynamically add it at runtime through the
381 * format string. For these dynamic cases, we allow the subsystem to
382 * tell us the level at compile time.
384 * NULL indicates that the level, if any, is stored in fmt.
389 * The format string used by various subsystem specific printk()
390 * wrappers to prefix the message.
392 * Note that the static prefix defined by the pr_fmt() macro is stored
393 * directly in the message format (@fmt), not here.
395 const char *subsys_fmt_prefix;
398 #define __printk_index_emit(_fmt, _level, _subsys_fmt_prefix) \
400 if (__builtin_constant_p(_fmt) && __builtin_constant_p(_level)) { \
402 * We check __builtin_constant_p multiple times here
403 * for the same input because GCC will produce an error
404 * if we try to assign a static variable to fmt if it
405 * is not a constant, even with the outer if statement.
407 static const struct pi_entry _entry \
409 .fmt = __builtin_constant_p(_fmt) ? (_fmt) : NULL, \
413 .level = __builtin_constant_p(_level) ? (_level) : NULL, \
414 .subsys_fmt_prefix = _subsys_fmt_prefix,\
416 static const struct pi_entry *_entry_ptr \
417 __used __section(".printk_index") = &_entry; \
421 #else /* !CONFIG_PRINTK_INDEX */
422 #define __printk_index_emit(...) do {} while (0)
423 #endif /* CONFIG_PRINTK_INDEX */
426 * Some subsystems have their own custom printk that applies a va_format to a
427 * generic format, for example, to include a device number or other metadata
428 * alongside the format supplied by the caller.
430 * In order to store these in the way they would be emitted by the printk
431 * infrastructure, the subsystem provides us with the start, fixed string, and
432 * any subsequent text in the format string.
434 * We take a variable argument list as pr_fmt/dev_fmt/etc are sometimes passed
435 * as multiple arguments (eg: `"%s: ", "blah"`), and we must only take the
438 * subsys_fmt_prefix must be known at compile time, or compilation will fail
439 * (since this is a mistake). If fmt or level is not known at compile time, no
440 * index entry will be made (since this can legitimately happen).
442 #define printk_index_subsys_emit(subsys_fmt_prefix, level, fmt, ...) \
443 __printk_index_emit(fmt, level, subsys_fmt_prefix)
445 #define printk_index_wrap(_p_func, _fmt, ...) \
447 __printk_index_emit(_fmt, NULL, NULL); \
448 _p_func(_fmt, ##__VA_ARGS__); \
453 * printk - print a kernel message
454 * @fmt: format string
456 * This is printk(). It can be called from any context. We want it to work.
458 * If printk indexing is enabled, _printk() is called from printk_index_wrap.
459 * Otherwise, printk is simply #defined to _printk.
461 * We try to grab the console_lock. If we succeed, it's easy - we log the
462 * output and call the console drivers. If we fail to get the semaphore, we
463 * place the output into the log buffer and return. The current holder of
464 * the console_sem will notice the new output in console_unlock(); and will
465 * send it to the consoles before releasing the lock.
467 * One effect of this deferred printing is that code which calls printk() and
468 * then changes console_loglevel may break. This is because console_loglevel
469 * is inspected when the actual printing occurs.
474 * See the vsnprintf() documentation for format string extensions over C99.
476 #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
477 #define printk_deferred(fmt, ...) \
478 printk_index_wrap(_printk_deferred, fmt, ##__VA_ARGS__)
481 * pr_emerg - Print an emergency-level message
482 * @fmt: format string
483 * @...: arguments for the format string
485 * This macro expands to a printk with KERN_EMERG loglevel. It uses pr_fmt() to
486 * generate the format string.
488 #define pr_emerg(fmt, ...) \
489 printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
491 * pr_alert - Print an alert-level message
492 * @fmt: format string
493 * @...: arguments for the format string
495 * This macro expands to a printk with KERN_ALERT loglevel. It uses pr_fmt() to
496 * generate the format string.
498 #define pr_alert(fmt, ...) \
499 printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
501 * pr_crit - Print a critical-level message
502 * @fmt: format string
503 * @...: arguments for the format string
505 * This macro expands to a printk with KERN_CRIT loglevel. It uses pr_fmt() to
506 * generate the format string.
508 #define pr_crit(fmt, ...) \
509 printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
511 * pr_err - Print an error-level message
512 * @fmt: format string
513 * @...: arguments for the format string
515 * This macro expands to a printk with KERN_ERR loglevel. It uses pr_fmt() to
516 * generate the format string.
518 #define pr_err(fmt, ...) \
519 printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
521 * pr_warn - Print a warning-level message
522 * @fmt: format string
523 * @...: arguments for the format string
525 * This macro expands to a printk with KERN_WARNING loglevel. It uses pr_fmt()
526 * to generate the format string.
528 #define pr_warn(fmt, ...) \
529 printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
531 * pr_notice - Print a notice-level message
532 * @fmt: format string
533 * @...: arguments for the format string
535 * This macro expands to a printk with KERN_NOTICE loglevel. It uses pr_fmt() to
536 * generate the format string.
538 #define pr_notice(fmt, ...) \
539 printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
541 * pr_info - Print an info-level message
542 * @fmt: format string
543 * @...: arguments for the format string
545 * This macro expands to a printk with KERN_INFO loglevel. It uses pr_fmt() to
546 * generate the format string.
548 #define pr_info(fmt, ...) \
549 printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
552 * pr_cont - Continues a previous log message in the same line.
553 * @fmt: format string
554 * @...: arguments for the format string
556 * This macro expands to a printk with KERN_CONT loglevel. It should only be
557 * used when continuing a log message with no newline ('\n') enclosed. Otherwise
558 * it defaults back to KERN_DEFAULT loglevel.
560 #define pr_cont(fmt, ...) \
561 printk(KERN_CONT fmt, ##__VA_ARGS__)
564 * pr_devel - Print a debug-level message conditionally
565 * @fmt: format string
566 * @...: arguments for the format string
568 * This macro expands to a printk with KERN_DEBUG loglevel if DEBUG is
569 * defined. Otherwise it does nothing.
571 * It uses pr_fmt() to generate the format string.
574 #define pr_devel(fmt, ...) \
575 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
577 #define pr_devel(fmt, ...) \
578 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
582 /* If you are writing a driver, please use dev_dbg instead */
583 #if defined(CONFIG_DYNAMIC_DEBUG) || \
584 (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
585 #include <linux/dynamic_debug.h>
588 * pr_debug - Print a debug-level message conditionally
589 * @fmt: format string
590 * @...: arguments for the format string
592 * This macro expands to dynamic_pr_debug() if CONFIG_DYNAMIC_DEBUG is
593 * set. Otherwise, if DEBUG is defined, it's equivalent to a printk with
594 * KERN_DEBUG loglevel. If DEBUG is not defined it does nothing.
596 * It uses pr_fmt() to generate the format string (dynamic_pr_debug() uses
597 * pr_fmt() internally).
599 #define pr_debug(fmt, ...) \
600 dynamic_pr_debug(fmt, ##__VA_ARGS__)
602 #define pr_debug(fmt, ...) \
603 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
605 #define pr_debug(fmt, ...) \
606 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
610 * Print a one-time message (analogous to WARN_ONCE() et al):
614 #define printk_once(fmt, ...) \
615 DO_ONCE_LITE(printk, fmt, ##__VA_ARGS__)
616 #define printk_deferred_once(fmt, ...) \
617 DO_ONCE_LITE(printk_deferred, fmt, ##__VA_ARGS__)
619 #define printk_once(fmt, ...) \
620 no_printk(fmt, ##__VA_ARGS__)
621 #define printk_deferred_once(fmt, ...) \
622 no_printk(fmt, ##__VA_ARGS__)
625 #define pr_emerg_once(fmt, ...) \
626 printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
627 #define pr_alert_once(fmt, ...) \
628 printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
629 #define pr_crit_once(fmt, ...) \
630 printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
631 #define pr_err_once(fmt, ...) \
632 printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
633 #define pr_warn_once(fmt, ...) \
634 printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
635 #define pr_notice_once(fmt, ...) \
636 printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
637 #define pr_info_once(fmt, ...) \
638 printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
639 /* no pr_cont_once, don't do that... */
642 #define pr_devel_once(fmt, ...) \
643 printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
645 #define pr_devel_once(fmt, ...) \
646 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
649 /* If you are writing a driver, please use dev_dbg instead */
651 #define pr_debug_once(fmt, ...) \
652 printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
654 #define pr_debug_once(fmt, ...) \
655 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
659 * ratelimited messages with local ratelimit_state,
660 * no local ratelimit_state used in the !PRINTK case
663 #define printk_ratelimited(fmt, ...) \
665 static DEFINE_RATELIMIT_STATE(_rs, \
666 DEFAULT_RATELIMIT_INTERVAL, \
667 DEFAULT_RATELIMIT_BURST); \
669 if (__ratelimit(&_rs)) \
670 printk(fmt, ##__VA_ARGS__); \
673 #define printk_ratelimited(fmt, ...) \
674 no_printk(fmt, ##__VA_ARGS__)
677 #define pr_emerg_ratelimited(fmt, ...) \
678 printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
679 #define pr_alert_ratelimited(fmt, ...) \
680 printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
681 #define pr_crit_ratelimited(fmt, ...) \
682 printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
683 #define pr_err_ratelimited(fmt, ...) \
684 printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
685 #define pr_warn_ratelimited(fmt, ...) \
686 printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
687 #define pr_notice_ratelimited(fmt, ...) \
688 printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
689 #define pr_info_ratelimited(fmt, ...) \
690 printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
691 /* no pr_cont_ratelimited, don't do that... */
694 #define pr_devel_ratelimited(fmt, ...) \
695 printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
697 #define pr_devel_ratelimited(fmt, ...) \
698 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
701 /* If you are writing a driver, please use dev_dbg instead */
702 #if defined(CONFIG_DYNAMIC_DEBUG) || \
703 (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
704 /* descriptor check is first to prevent flooding with "callbacks suppressed" */
705 #define pr_debug_ratelimited(fmt, ...) \
707 static DEFINE_RATELIMIT_STATE(_rs, \
708 DEFAULT_RATELIMIT_INTERVAL, \
709 DEFAULT_RATELIMIT_BURST); \
710 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, pr_fmt(fmt)); \
711 if (DYNAMIC_DEBUG_BRANCH(descriptor) && \
713 __dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__); \
716 #define pr_debug_ratelimited(fmt, ...) \
717 printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
719 #define pr_debug_ratelimited(fmt, ...) \
720 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
723 extern const struct file_operations kmsg_fops;
730 extern int hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
731 int groupsize, char *linebuf, size_t linebuflen,
734 extern void print_hex_dump(const char *level, const char *prefix_str,
735 int prefix_type, int rowsize, int groupsize,
736 const void *buf, size_t len, bool ascii);
738 static inline void print_hex_dump(const char *level, const char *prefix_str,
739 int prefix_type, int rowsize, int groupsize,
740 const void *buf, size_t len, bool ascii)
743 static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
744 const void *buf, size_t len)
750 #if defined(CONFIG_DYNAMIC_DEBUG) || \
751 (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
752 #define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
753 groupsize, buf, len, ascii) \
754 dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
755 groupsize, buf, len, ascii)
757 #define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
758 groupsize, buf, len, ascii) \
759 print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \
760 groupsize, buf, len, ascii)
762 static inline void print_hex_dump_debug(const char *prefix_str, int prefix_type,
763 int rowsize, int groupsize,
764 const void *buf, size_t len, bool ascii)
770 * print_hex_dump_bytes - shorthand form of print_hex_dump() with default params
771 * @prefix_str: string to prefix each line with;
772 * caller supplies trailing spaces for alignment if desired
773 * @prefix_type: controls whether prefix of an offset, address, or none
774 * is printed (%DUMP_PREFIX_OFFSET, %DUMP_PREFIX_ADDRESS, %DUMP_PREFIX_NONE)
775 * @buf: data blob to dump
776 * @len: number of bytes in the @buf
778 * Calls print_hex_dump(), with log level of KERN_DEBUG,
779 * rowsize of 16, groupsize of 1, and ASCII output included.
781 #define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \
782 print_hex_dump_debug(prefix_str, prefix_type, 16, 1, buf, len, true)