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/ratelimit_types.h>
10 #include <linux/once_lite.h>
12 extern const char linux_banner[];
13 extern const char linux_proc_banner[];
15 extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */
17 #define PRINTK_MAX_SINGLE_HEADER_LEN 2
19 static inline int printk_get_level(const char *buffer)
21 if (buffer[0] == KERN_SOH_ASCII && buffer[1]) {
24 case 'c': /* KERN_CONT */
31 static inline const char *printk_skip_level(const char *buffer)
33 if (printk_get_level(buffer))
39 static inline const char *printk_skip_headers(const char *buffer)
41 while (printk_get_level(buffer))
42 buffer = printk_skip_level(buffer);
47 #define CONSOLE_EXT_LOG_MAX 8192
49 /* printk's without a loglevel use this.. */
50 #define MESSAGE_LOGLEVEL_DEFAULT CONFIG_MESSAGE_LOGLEVEL_DEFAULT
52 /* We show everything that is MORE important than this.. */
53 #define CONSOLE_LOGLEVEL_SILENT 0 /* Mum's the word */
54 #define CONSOLE_LOGLEVEL_MIN 1 /* Minimum loglevel we let people use */
55 #define CONSOLE_LOGLEVEL_DEBUG 10 /* issue debug messages */
56 #define CONSOLE_LOGLEVEL_MOTORMOUTH 15 /* You can't shut this one up */
59 * Default used to be hard-coded at 7, quiet used to be hardcoded at 4,
60 * we're now allowing both to be set from kernel config.
62 #define CONSOLE_LOGLEVEL_DEFAULT CONFIG_CONSOLE_LOGLEVEL_DEFAULT
63 #define CONSOLE_LOGLEVEL_QUIET CONFIG_CONSOLE_LOGLEVEL_QUIET
65 extern int console_printk[];
67 #define console_loglevel (console_printk[0])
68 #define default_message_loglevel (console_printk[1])
69 #define minimum_console_loglevel (console_printk[2])
70 #define default_console_loglevel (console_printk[3])
72 extern void console_verbose(void);
74 /* strlen("ratelimit") + 1 */
75 #define DEVKMSG_STR_MAX_SIZE 10
76 extern char devkmsg_log_str[];
79 extern int suppress_printk;
88 * Add this to a message where you are sure the firmware is buggy or behaves
89 * really stupid or out of spec. Be aware that the responsible BIOS developer
90 * should be able to fix this issue or at least get a concrete idea of the
91 * problem by reading your message without the need of looking at the kernel
94 * Use it for definite and high priority BIOS bugs.
97 * Use it for not that clear (e.g. could the kernel messed up things already?)
98 * and medium priority BIOS bugs.
101 * Use this one if you want to tell the user or vendor about something
102 * suspicious, but generally harmless related to the firmware.
104 * Use it for information or very low priority BIOS bugs.
106 #define FW_BUG "[Firmware Bug]: "
107 #define FW_WARN "[Firmware Warn]: "
108 #define FW_INFO "[Firmware Info]: "
112 * Add this to a message for hardware errors, so that user can report
113 * it to hardware vendor instead of LKML or software vendor.
115 #define HW_ERR "[Hardware Error]: "
119 * Add this to a message whenever you want to warn user space about the use
120 * of a deprecated aspect of an API so they can stop using it
122 #define DEPRECATED "[Deprecated]: "
125 * Dummy printk for disabled debugging statements to use whilst maintaining
126 * gcc's format checking.
128 #define no_printk(fmt, ...) \
131 printk(fmt, ##__VA_ARGS__); \
135 #ifdef CONFIG_EARLY_PRINTK
136 extern asmlinkage __printf(1, 2)
137 void early_printk(const char *fmt, ...);
139 static inline __printf(1, 2) __cold
140 void early_printk(const char *s, ...) { }
143 struct dev_printk_info;
146 asmlinkage __printf(4, 0)
147 int vprintk_emit(int facility, int level,
148 const struct dev_printk_info *dev_info,
149 const char *fmt, va_list args);
151 asmlinkage __printf(1, 0)
152 int vprintk(const char *fmt, va_list args);
154 asmlinkage __printf(1, 2) __cold
155 int _printk(const char *fmt, ...);
158 * Special printk facility for scheduler/timekeeping use only, _DO_NOT_USE_ !
160 __printf(1, 2) __cold int _printk_deferred(const char *fmt, ...);
162 extern void __printk_safe_enter(void);
163 extern void __printk_safe_exit(void);
165 * The printk_deferred_enter/exit macros are available only as a hack for
166 * some code paths that need to defer all printk console printing. Interrupts
167 * must be disabled for the deferred duration.
169 #define printk_deferred_enter __printk_safe_enter
170 #define printk_deferred_exit __printk_safe_exit
172 extern void printk_prefer_direct_enter(void);
173 extern void printk_prefer_direct_exit(void);
175 extern bool pr_flush(int timeout_ms, bool reset_on_progress);
176 extern void try_block_console_kthreads(int timeout_ms);
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 void try_block_console_kthreads(int timeout_ms)
245 static inline int printk_ratelimit(void)
249 static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies,
250 unsigned int interval_msec)
255 static inline void wake_up_klogd(void)
259 static inline char *log_buf_addr_get(void)
264 static inline u32 log_buf_len_get(void)
269 static inline void log_buf_vmcoreinfo_setup(void)
273 static inline void setup_log_buf(int early)
277 static inline __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...)
281 static inline void dump_stack_print_info(const char *log_lvl)
285 static inline void show_regs_print_info(const char *log_lvl)
289 static inline void dump_stack_lvl(const char *log_lvl)
293 static inline void dump_stack(void)
296 static inline void printk_trigger_flush(void)
302 extern int __printk_cpu_sync_try_get(void);
303 extern void __printk_cpu_sync_wait(void);
304 extern void __printk_cpu_sync_put(void);
308 #define __printk_cpu_sync_try_get() true
309 #define __printk_cpu_sync_wait()
310 #define __printk_cpu_sync_put()
311 #endif /* CONFIG_SMP */
314 * printk_cpu_sync_get_irqsave() - Disable interrupts and acquire the printk
315 * cpu-reentrant spinning lock.
316 * @flags: Stack-allocated storage for saving local interrupt state,
317 * to be passed to printk_cpu_sync_put_irqrestore().
319 * If the lock is owned by another CPU, spin until it becomes available.
320 * Interrupts are restored while spinning.
322 * CAUTION: This function must be used carefully. It does not behave like a
323 * typical lock. Here are important things to watch out for...
325 * * This function is reentrant on the same CPU. Therefore the calling
326 * code must not assume exclusive access to data if code accessing the
327 * data can run reentrant or within NMI context on the same CPU.
329 * * If there exists usage of this function from NMI context, it becomes
330 * unsafe to perform any type of locking or spinning to wait for other
331 * CPUs after calling this function from any context. This includes
332 * using spinlocks or any other busy-waiting synchronization methods.
334 #define printk_cpu_sync_get_irqsave(flags) \
336 local_irq_save(flags); \
337 if (__printk_cpu_sync_try_get()) \
339 local_irq_restore(flags); \
340 __printk_cpu_sync_wait(); \
344 * printk_cpu_sync_put_irqrestore() - Release the printk cpu-reentrant spinning
345 * lock and restore interrupts.
346 * @flags: Caller's saved interrupt state, from printk_cpu_sync_get_irqsave().
348 #define printk_cpu_sync_put_irqrestore(flags) \
350 __printk_cpu_sync_put(); \
351 local_irq_restore(flags); \
354 extern int kptr_restrict;
357 * pr_fmt - used by the pr_*() macros to generate the printk format string
358 * @fmt: format string passed from a pr_*() macro
360 * This macro can be used to generate a unified format string for pr_*()
361 * macros. A common use is to prefix all pr_*() messages in a file with a common
362 * string. For example, defining this at the top of a source file:
364 * #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
366 * would prefix all pr_info, pr_emerg... messages in the file with the module
370 #define pr_fmt(fmt) fmt
375 #ifdef CONFIG_PRINTK_INDEX
383 * While printk and pr_* have the level stored in the string at compile
384 * time, some subsystems dynamically add it at runtime through the
385 * format string. For these dynamic cases, we allow the subsystem to
386 * tell us the level at compile time.
388 * NULL indicates that the level, if any, is stored in fmt.
393 * The format string used by various subsystem specific printk()
394 * wrappers to prefix the message.
396 * Note that the static prefix defined by the pr_fmt() macro is stored
397 * directly in the message format (@fmt), not here.
399 const char *subsys_fmt_prefix;
402 #define __printk_index_emit(_fmt, _level, _subsys_fmt_prefix) \
404 if (__builtin_constant_p(_fmt) && __builtin_constant_p(_level)) { \
406 * We check __builtin_constant_p multiple times here
407 * for the same input because GCC will produce an error
408 * if we try to assign a static variable to fmt if it
409 * is not a constant, even with the outer if statement.
411 static const struct pi_entry _entry \
413 .fmt = __builtin_constant_p(_fmt) ? (_fmt) : NULL, \
417 .level = __builtin_constant_p(_level) ? (_level) : NULL, \
418 .subsys_fmt_prefix = _subsys_fmt_prefix,\
420 static const struct pi_entry *_entry_ptr \
421 __used __section(".printk_index") = &_entry; \
425 #else /* !CONFIG_PRINTK_INDEX */
426 #define __printk_index_emit(...) do {} while (0)
427 #endif /* CONFIG_PRINTK_INDEX */
430 * Some subsystems have their own custom printk that applies a va_format to a
431 * generic format, for example, to include a device number or other metadata
432 * alongside the format supplied by the caller.
434 * In order to store these in the way they would be emitted by the printk
435 * infrastructure, the subsystem provides us with the start, fixed string, and
436 * any subsequent text in the format string.
438 * We take a variable argument list as pr_fmt/dev_fmt/etc are sometimes passed
439 * as multiple arguments (eg: `"%s: ", "blah"`), and we must only take the
442 * subsys_fmt_prefix must be known at compile time, or compilation will fail
443 * (since this is a mistake). If fmt or level is not known at compile time, no
444 * index entry will be made (since this can legitimately happen).
446 #define printk_index_subsys_emit(subsys_fmt_prefix, level, fmt, ...) \
447 __printk_index_emit(fmt, level, subsys_fmt_prefix)
449 #define printk_index_wrap(_p_func, _fmt, ...) \
451 __printk_index_emit(_fmt, NULL, NULL); \
452 _p_func(_fmt, ##__VA_ARGS__); \
457 * printk - print a kernel message
458 * @fmt: format string
460 * This is printk(). It can be called from any context. We want it to work.
462 * If printk indexing is enabled, _printk() is called from printk_index_wrap.
463 * Otherwise, printk is simply #defined to _printk.
465 * We try to grab the console_lock. If we succeed, it's easy - we log the
466 * output and call the console drivers. If we fail to get the semaphore, we
467 * place the output into the log buffer and return. The current holder of
468 * the console_sem will notice the new output in console_unlock(); and will
469 * send it to the consoles before releasing the lock.
471 * One effect of this deferred printing is that code which calls printk() and
472 * then changes console_loglevel may break. This is because console_loglevel
473 * is inspected when the actual printing occurs.
478 * See the vsnprintf() documentation for format string extensions over C99.
480 #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
481 #define printk_deferred(fmt, ...) \
482 printk_index_wrap(_printk_deferred, fmt, ##__VA_ARGS__)
485 * pr_emerg - Print an emergency-level message
486 * @fmt: format string
487 * @...: arguments for the format string
489 * This macro expands to a printk with KERN_EMERG loglevel. It uses pr_fmt() to
490 * generate the format string.
492 #define pr_emerg(fmt, ...) \
493 printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
495 * pr_alert - Print an alert-level message
496 * @fmt: format string
497 * @...: arguments for the format string
499 * This macro expands to a printk with KERN_ALERT loglevel. It uses pr_fmt() to
500 * generate the format string.
502 #define pr_alert(fmt, ...) \
503 printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
505 * pr_crit - Print a critical-level message
506 * @fmt: format string
507 * @...: arguments for the format string
509 * This macro expands to a printk with KERN_CRIT loglevel. It uses pr_fmt() to
510 * generate the format string.
512 #define pr_crit(fmt, ...) \
513 printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
515 * pr_err - Print an error-level message
516 * @fmt: format string
517 * @...: arguments for the format string
519 * This macro expands to a printk with KERN_ERR loglevel. It uses pr_fmt() to
520 * generate the format string.
522 #define pr_err(fmt, ...) \
523 printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
525 * pr_warn - Print a warning-level message
526 * @fmt: format string
527 * @...: arguments for the format string
529 * This macro expands to a printk with KERN_WARNING loglevel. It uses pr_fmt()
530 * to generate the format string.
532 #define pr_warn(fmt, ...) \
533 printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
535 * pr_notice - Print a notice-level message
536 * @fmt: format string
537 * @...: arguments for the format string
539 * This macro expands to a printk with KERN_NOTICE loglevel. It uses pr_fmt() to
540 * generate the format string.
542 #define pr_notice(fmt, ...) \
543 printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
545 * pr_info - Print an info-level message
546 * @fmt: format string
547 * @...: arguments for the format string
549 * This macro expands to a printk with KERN_INFO loglevel. It uses pr_fmt() to
550 * generate the format string.
552 #define pr_info(fmt, ...) \
553 printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
556 * pr_cont - Continues a previous log message in the same line.
557 * @fmt: format string
558 * @...: arguments for the format string
560 * This macro expands to a printk with KERN_CONT loglevel. It should only be
561 * used when continuing a log message with no newline ('\n') enclosed. Otherwise
562 * it defaults back to KERN_DEFAULT loglevel.
564 #define pr_cont(fmt, ...) \
565 printk(KERN_CONT fmt, ##__VA_ARGS__)
568 * pr_devel - Print a debug-level message conditionally
569 * @fmt: format string
570 * @...: arguments for the format string
572 * This macro expands to a printk with KERN_DEBUG loglevel if DEBUG is
573 * defined. Otherwise it does nothing.
575 * It uses pr_fmt() to generate the format string.
578 #define pr_devel(fmt, ...) \
579 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
581 #define pr_devel(fmt, ...) \
582 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
586 /* If you are writing a driver, please use dev_dbg instead */
587 #if defined(CONFIG_DYNAMIC_DEBUG) || \
588 (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
589 #include <linux/dynamic_debug.h>
592 * pr_debug - Print a debug-level message conditionally
593 * @fmt: format string
594 * @...: arguments for the format string
596 * This macro expands to dynamic_pr_debug() if CONFIG_DYNAMIC_DEBUG is
597 * set. Otherwise, if DEBUG is defined, it's equivalent to a printk with
598 * KERN_DEBUG loglevel. If DEBUG is not defined it does nothing.
600 * It uses pr_fmt() to generate the format string (dynamic_pr_debug() uses
601 * pr_fmt() internally).
603 #define pr_debug(fmt, ...) \
604 dynamic_pr_debug(fmt, ##__VA_ARGS__)
606 #define pr_debug(fmt, ...) \
607 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
609 #define pr_debug(fmt, ...) \
610 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
614 * Print a one-time message (analogous to WARN_ONCE() et al):
618 #define printk_once(fmt, ...) \
619 DO_ONCE_LITE(printk, fmt, ##__VA_ARGS__)
620 #define printk_deferred_once(fmt, ...) \
621 DO_ONCE_LITE(printk_deferred, fmt, ##__VA_ARGS__)
623 #define printk_once(fmt, ...) \
624 no_printk(fmt, ##__VA_ARGS__)
625 #define printk_deferred_once(fmt, ...) \
626 no_printk(fmt, ##__VA_ARGS__)
629 #define pr_emerg_once(fmt, ...) \
630 printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
631 #define pr_alert_once(fmt, ...) \
632 printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
633 #define pr_crit_once(fmt, ...) \
634 printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
635 #define pr_err_once(fmt, ...) \
636 printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
637 #define pr_warn_once(fmt, ...) \
638 printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
639 #define pr_notice_once(fmt, ...) \
640 printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
641 #define pr_info_once(fmt, ...) \
642 printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
643 /* no pr_cont_once, don't do that... */
646 #define pr_devel_once(fmt, ...) \
647 printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
649 #define pr_devel_once(fmt, ...) \
650 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
653 /* If you are writing a driver, please use dev_dbg instead */
655 #define pr_debug_once(fmt, ...) \
656 printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
658 #define pr_debug_once(fmt, ...) \
659 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
663 * ratelimited messages with local ratelimit_state,
664 * no local ratelimit_state used in the !PRINTK case
667 #define printk_ratelimited(fmt, ...) \
669 static DEFINE_RATELIMIT_STATE(_rs, \
670 DEFAULT_RATELIMIT_INTERVAL, \
671 DEFAULT_RATELIMIT_BURST); \
673 if (__ratelimit(&_rs)) \
674 printk(fmt, ##__VA_ARGS__); \
677 #define printk_ratelimited(fmt, ...) \
678 no_printk(fmt, ##__VA_ARGS__)
681 #define pr_emerg_ratelimited(fmt, ...) \
682 printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
683 #define pr_alert_ratelimited(fmt, ...) \
684 printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
685 #define pr_crit_ratelimited(fmt, ...) \
686 printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
687 #define pr_err_ratelimited(fmt, ...) \
688 printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
689 #define pr_warn_ratelimited(fmt, ...) \
690 printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
691 #define pr_notice_ratelimited(fmt, ...) \
692 printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
693 #define pr_info_ratelimited(fmt, ...) \
694 printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
695 /* no pr_cont_ratelimited, don't do that... */
698 #define pr_devel_ratelimited(fmt, ...) \
699 printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
701 #define pr_devel_ratelimited(fmt, ...) \
702 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
705 /* If you are writing a driver, please use dev_dbg instead */
706 #if defined(CONFIG_DYNAMIC_DEBUG) || \
707 (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
708 /* descriptor check is first to prevent flooding with "callbacks suppressed" */
709 #define pr_debug_ratelimited(fmt, ...) \
711 static DEFINE_RATELIMIT_STATE(_rs, \
712 DEFAULT_RATELIMIT_INTERVAL, \
713 DEFAULT_RATELIMIT_BURST); \
714 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, pr_fmt(fmt)); \
715 if (DYNAMIC_DEBUG_BRANCH(descriptor) && \
717 __dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__); \
720 #define pr_debug_ratelimited(fmt, ...) \
721 printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
723 #define pr_debug_ratelimited(fmt, ...) \
724 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
727 extern const struct file_operations kmsg_fops;
734 extern int hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
735 int groupsize, char *linebuf, size_t linebuflen,
738 extern 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);
742 static inline void print_hex_dump(const char *level, const char *prefix_str,
743 int prefix_type, int rowsize, int groupsize,
744 const void *buf, size_t len, bool ascii)
747 static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
748 const void *buf, size_t len)
754 #if defined(CONFIG_DYNAMIC_DEBUG) || \
755 (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
756 #define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
757 groupsize, buf, len, ascii) \
758 dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
759 groupsize, buf, len, ascii)
761 #define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
762 groupsize, buf, len, ascii) \
763 print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \
764 groupsize, buf, len, ascii)
766 static inline void print_hex_dump_debug(const char *prefix_str, int prefix_type,
767 int rowsize, int groupsize,
768 const void *buf, size_t len, bool ascii)
774 * print_hex_dump_bytes - shorthand form of print_hex_dump() with default params
775 * @prefix_str: string to prefix each line with;
776 * caller supplies trailing spaces for alignment if desired
777 * @prefix_type: controls whether prefix of an offset, address, or none
778 * is printed (%DUMP_PREFIX_OFFSET, %DUMP_PREFIX_ADDRESS, %DUMP_PREFIX_NONE)
779 * @buf: data blob to dump
780 * @len: number of bytes in the @buf
782 * Calls print_hex_dump(), with log level of KERN_DEBUG,
783 * rowsize of 16, groupsize of 1, and ASCII output included.
785 #define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \
786 print_hex_dump_debug(prefix_str, prefix_type, 16, 1, buf, len, true)