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>
14 extern const char linux_banner[];
15 extern const char linux_proc_banner[];
17 extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */
19 #define PRINTK_MAX_SINGLE_HEADER_LEN 2
21 static inline int printk_get_level(const char *buffer)
23 if (buffer[0] == KERN_SOH_ASCII && buffer[1]) {
26 case 'c': /* KERN_CONT */
33 static inline const char *printk_skip_level(const char *buffer)
35 if (printk_get_level(buffer))
41 static inline const char *printk_skip_headers(const char *buffer)
43 while (printk_get_level(buffer))
44 buffer = printk_skip_level(buffer);
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);
164 extern void __printk_deferred_enter(void);
165 extern void __printk_deferred_exit(void);
168 * The printk_deferred_enter/exit macros are available only as a hack for
169 * some code paths that need to defer all printk console printing. Interrupts
170 * must be disabled for the deferred duration.
172 #define printk_deferred_enter() __printk_deferred_enter()
173 #define printk_deferred_exit() __printk_deferred_exit()
176 * Please don't use printk_ratelimit(), because it shares ratelimiting state
177 * with all other unrelated printk_ratelimit() callsites. Instead use
178 * printk_ratelimited() or plain old __ratelimit().
180 extern int __printk_ratelimit(const char *func);
181 #define printk_ratelimit() __printk_ratelimit(__func__)
182 extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
183 unsigned int interval_msec);
185 extern int printk_delay_msec;
186 extern int dmesg_restrict;
188 extern void wake_up_klogd(void);
190 char *log_buf_addr_get(void);
191 u32 log_buf_len_get(void);
192 void log_buf_vmcoreinfo_setup(void);
193 void __init setup_log_buf(int early);
194 __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...);
195 void dump_stack_print_info(const char *log_lvl);
196 void show_regs_print_info(const char *log_lvl);
197 extern asmlinkage void dump_stack_lvl(const char *log_lvl) __cold;
198 extern asmlinkage void dump_stack(void) __cold;
199 void printk_trigger_flush(void);
200 void printk_legacy_allow_panic_sync(void);
201 extern void nbcon_acquire(struct uart_port *up);
202 extern void nbcon_release(struct uart_port *up);
203 void nbcon_atomic_flush_unsafe(void);
205 static inline __printf(1, 0)
206 int vprintk(const char *s, va_list args)
210 static inline __printf(1, 2) __cold
211 int _printk(const char *s, ...)
215 static inline __printf(1, 2) __cold
216 int _printk_deferred(const char *s, ...)
221 static inline void printk_deferred_enter(void)
225 static inline void printk_deferred_exit(void)
229 static inline int printk_ratelimit(void)
233 static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies,
234 unsigned int interval_msec)
239 static inline void wake_up_klogd(void)
243 static inline char *log_buf_addr_get(void)
248 static inline u32 log_buf_len_get(void)
253 static inline void log_buf_vmcoreinfo_setup(void)
257 static inline void setup_log_buf(int early)
261 static inline __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...)
265 static inline void dump_stack_print_info(const char *log_lvl)
269 static inline void show_regs_print_info(const char *log_lvl)
273 static inline void dump_stack_lvl(const char *log_lvl)
277 static inline void dump_stack(void)
280 static inline void printk_trigger_flush(void)
284 static inline void printk_legacy_allow_panic_sync(void)
288 static inline void nbcon_acquire(struct uart_port *up)
292 static inline void nbcon_release(struct uart_port *up)
296 static inline void nbcon_atomic_flush_unsafe(void)
303 extern int __printk_cpu_sync_try_get(void);
304 extern void __printk_cpu_sync_wait(void);
305 extern void __printk_cpu_sync_put(void);
309 #define __printk_cpu_sync_try_get() true
310 #define __printk_cpu_sync_wait()
311 #define __printk_cpu_sync_put()
312 #endif /* CONFIG_SMP */
315 * printk_cpu_sync_get_irqsave() - Disable interrupts and acquire the printk
316 * cpu-reentrant spinning lock.
317 * @flags: Stack-allocated storage for saving local interrupt state,
318 * to be passed to printk_cpu_sync_put_irqrestore().
320 * If the lock is owned by another CPU, spin until it becomes available.
321 * Interrupts are restored while spinning.
323 * CAUTION: This function must be used carefully. It does not behave like a
324 * typical lock. Here are important things to watch out for...
326 * * This function is reentrant on the same CPU. Therefore the calling
327 * code must not assume exclusive access to data if code accessing the
328 * data can run reentrant or within NMI context on the same CPU.
330 * * If there exists usage of this function from NMI context, it becomes
331 * unsafe to perform any type of locking or spinning to wait for other
332 * CPUs after calling this function from any context. This includes
333 * using spinlocks or any other busy-waiting synchronization methods.
335 #define printk_cpu_sync_get_irqsave(flags) \
337 local_irq_save(flags); \
338 if (__printk_cpu_sync_try_get()) \
340 local_irq_restore(flags); \
341 __printk_cpu_sync_wait(); \
345 * printk_cpu_sync_put_irqrestore() - Release the printk cpu-reentrant spinning
346 * lock and restore interrupts.
347 * @flags: Caller's saved interrupt state, from printk_cpu_sync_get_irqsave().
349 #define printk_cpu_sync_put_irqrestore(flags) \
351 __printk_cpu_sync_put(); \
352 local_irq_restore(flags); \
355 extern int kptr_restrict;
358 * pr_fmt - used by the pr_*() macros to generate the printk format string
359 * @fmt: format string passed from a pr_*() macro
361 * This macro can be used to generate a unified format string for pr_*()
362 * macros. A common use is to prefix all pr_*() messages in a file with a common
363 * string. For example, defining this at the top of a source file:
365 * #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
367 * would prefix all pr_info, pr_emerg... messages in the file with the module
371 #define pr_fmt(fmt) fmt
376 #ifdef CONFIG_PRINTK_INDEX
384 * While printk and pr_* have the level stored in the string at compile
385 * time, some subsystems dynamically add it at runtime through the
386 * format string. For these dynamic cases, we allow the subsystem to
387 * tell us the level at compile time.
389 * NULL indicates that the level, if any, is stored in fmt.
394 * The format string used by various subsystem specific printk()
395 * wrappers to prefix the message.
397 * Note that the static prefix defined by the pr_fmt() macro is stored
398 * directly in the message format (@fmt), not here.
400 const char *subsys_fmt_prefix;
403 #define __printk_index_emit(_fmt, _level, _subsys_fmt_prefix) \
405 if (__builtin_constant_p(_fmt) && __builtin_constant_p(_level)) { \
407 * We check __builtin_constant_p multiple times here
408 * for the same input because GCC will produce an error
409 * if we try to assign a static variable to fmt if it
410 * is not a constant, even with the outer if statement.
412 static const struct pi_entry _entry \
414 .fmt = __builtin_constant_p(_fmt) ? (_fmt) : NULL, \
418 .level = __builtin_constant_p(_level) ? (_level) : NULL, \
419 .subsys_fmt_prefix = _subsys_fmt_prefix,\
421 static const struct pi_entry *_entry_ptr \
422 __used __section(".printk_index") = &_entry; \
426 #else /* !CONFIG_PRINTK_INDEX */
427 #define __printk_index_emit(...) do {} while (0)
428 #endif /* CONFIG_PRINTK_INDEX */
431 * Some subsystems have their own custom printk that applies a va_format to a
432 * generic format, for example, to include a device number or other metadata
433 * alongside the format supplied by the caller.
435 * In order to store these in the way they would be emitted by the printk
436 * infrastructure, the subsystem provides us with the start, fixed string, and
437 * any subsequent text in the format string.
439 * We take a variable argument list as pr_fmt/dev_fmt/etc are sometimes passed
440 * as multiple arguments (eg: `"%s: ", "blah"`), and we must only take the
443 * subsys_fmt_prefix must be known at compile time, or compilation will fail
444 * (since this is a mistake). If fmt or level is not known at compile time, no
445 * index entry will be made (since this can legitimately happen).
447 #define printk_index_subsys_emit(subsys_fmt_prefix, level, fmt, ...) \
448 __printk_index_emit(fmt, level, subsys_fmt_prefix)
450 #define printk_index_wrap(_p_func, _fmt, ...) \
452 __printk_index_emit(_fmt, NULL, NULL); \
453 _p_func(_fmt, ##__VA_ARGS__); \
458 * printk - print a kernel message
459 * @fmt: format string
461 * This is printk(). It can be called from any context. We want it to work.
463 * If printk indexing is enabled, _printk() is called from printk_index_wrap.
464 * Otherwise, printk is simply #defined to _printk.
466 * We try to grab the console_lock. If we succeed, it's easy - we log the
467 * output and call the console drivers. If we fail to get the semaphore, we
468 * place the output into the log buffer and return. The current holder of
469 * the console_sem will notice the new output in console_unlock(); and will
470 * send it to the consoles before releasing the lock.
472 * One effect of this deferred printing is that code which calls printk() and
473 * then changes console_loglevel may break. This is because console_loglevel
474 * is inspected when the actual printing occurs.
479 * See the vsnprintf() documentation for format string extensions over C99.
481 #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
482 #define printk_deferred(fmt, ...) \
483 printk_index_wrap(_printk_deferred, fmt, ##__VA_ARGS__)
486 * pr_emerg - Print an emergency-level message
487 * @fmt: format string
488 * @...: arguments for the format string
490 * This macro expands to a printk with KERN_EMERG loglevel. It uses pr_fmt() to
491 * generate the format string.
493 #define pr_emerg(fmt, ...) \
494 printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
496 * pr_alert - Print an alert-level message
497 * @fmt: format string
498 * @...: arguments for the format string
500 * This macro expands to a printk with KERN_ALERT loglevel. It uses pr_fmt() to
501 * generate the format string.
503 #define pr_alert(fmt, ...) \
504 printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
506 * pr_crit - Print a critical-level message
507 * @fmt: format string
508 * @...: arguments for the format string
510 * This macro expands to a printk with KERN_CRIT loglevel. It uses pr_fmt() to
511 * generate the format string.
513 #define pr_crit(fmt, ...) \
514 printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
516 * pr_err - Print an error-level message
517 * @fmt: format string
518 * @...: arguments for the format string
520 * This macro expands to a printk with KERN_ERR loglevel. It uses pr_fmt() to
521 * generate the format string.
523 #define pr_err(fmt, ...) \
524 printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
526 * pr_warn - Print a warning-level message
527 * @fmt: format string
528 * @...: arguments for the format string
530 * This macro expands to a printk with KERN_WARNING loglevel. It uses pr_fmt()
531 * to generate the format string.
533 #define pr_warn(fmt, ...) \
534 printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
536 * pr_notice - Print a notice-level message
537 * @fmt: format string
538 * @...: arguments for the format string
540 * This macro expands to a printk with KERN_NOTICE loglevel. It uses pr_fmt() to
541 * generate the format string.
543 #define pr_notice(fmt, ...) \
544 printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
546 * pr_info - Print an info-level message
547 * @fmt: format string
548 * @...: arguments for the format string
550 * This macro expands to a printk with KERN_INFO loglevel. It uses pr_fmt() to
551 * generate the format string.
553 #define pr_info(fmt, ...) \
554 printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
557 * pr_cont - Continues a previous log message in the same line.
558 * @fmt: format string
559 * @...: arguments for the format string
561 * This macro expands to a printk with KERN_CONT loglevel. It should only be
562 * used when continuing a log message with no newline ('\n') enclosed. Otherwise
563 * it defaults back to KERN_DEFAULT loglevel.
565 #define pr_cont(fmt, ...) \
566 printk(KERN_CONT fmt, ##__VA_ARGS__)
569 * pr_devel - Print a debug-level message conditionally
570 * @fmt: format string
571 * @...: arguments for the format string
573 * This macro expands to a printk with KERN_DEBUG loglevel if DEBUG is
574 * defined. Otherwise it does nothing.
576 * It uses pr_fmt() to generate the format string.
579 #define pr_devel(fmt, ...) \
580 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
582 #define pr_devel(fmt, ...) \
583 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
587 /* If you are writing a driver, please use dev_dbg instead */
588 #if defined(CONFIG_DYNAMIC_DEBUG) || \
589 (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
590 #include <linux/dynamic_debug.h>
593 * pr_debug - Print a debug-level message conditionally
594 * @fmt: format string
595 * @...: arguments for the format string
597 * This macro expands to dynamic_pr_debug() if CONFIG_DYNAMIC_DEBUG is
598 * set. Otherwise, if DEBUG is defined, it's equivalent to a printk with
599 * KERN_DEBUG loglevel. If DEBUG is not defined it does nothing.
601 * It uses pr_fmt() to generate the format string (dynamic_pr_debug() uses
602 * pr_fmt() internally).
604 #define pr_debug(fmt, ...) \
605 dynamic_pr_debug(fmt, ##__VA_ARGS__)
607 #define pr_debug(fmt, ...) \
608 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
610 #define pr_debug(fmt, ...) \
611 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
615 * Print a one-time message (analogous to WARN_ONCE() et al):
619 #define printk_once(fmt, ...) \
620 DO_ONCE_LITE(printk, fmt, ##__VA_ARGS__)
621 #define printk_deferred_once(fmt, ...) \
622 DO_ONCE_LITE(printk_deferred, fmt, ##__VA_ARGS__)
624 #define printk_once(fmt, ...) \
625 no_printk(fmt, ##__VA_ARGS__)
626 #define printk_deferred_once(fmt, ...) \
627 no_printk(fmt, ##__VA_ARGS__)
630 #define pr_emerg_once(fmt, ...) \
631 printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
632 #define pr_alert_once(fmt, ...) \
633 printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
634 #define pr_crit_once(fmt, ...) \
635 printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
636 #define pr_err_once(fmt, ...) \
637 printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
638 #define pr_warn_once(fmt, ...) \
639 printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
640 #define pr_notice_once(fmt, ...) \
641 printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
642 #define pr_info_once(fmt, ...) \
643 printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
644 /* no pr_cont_once, don't do that... */
647 #define pr_devel_once(fmt, ...) \
648 printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
650 #define pr_devel_once(fmt, ...) \
651 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
654 /* If you are writing a driver, please use dev_dbg instead */
656 #define pr_debug_once(fmt, ...) \
657 printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
659 #define pr_debug_once(fmt, ...) \
660 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
664 * ratelimited messages with local ratelimit_state,
665 * no local ratelimit_state used in the !PRINTK case
668 #define printk_ratelimited(fmt, ...) \
670 static DEFINE_RATELIMIT_STATE(_rs, \
671 DEFAULT_RATELIMIT_INTERVAL, \
672 DEFAULT_RATELIMIT_BURST); \
674 if (__ratelimit(&_rs)) \
675 printk(fmt, ##__VA_ARGS__); \
678 #define printk_ratelimited(fmt, ...) \
679 no_printk(fmt, ##__VA_ARGS__)
682 #define pr_emerg_ratelimited(fmt, ...) \
683 printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
684 #define pr_alert_ratelimited(fmt, ...) \
685 printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
686 #define pr_crit_ratelimited(fmt, ...) \
687 printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
688 #define pr_err_ratelimited(fmt, ...) \
689 printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
690 #define pr_warn_ratelimited(fmt, ...) \
691 printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
692 #define pr_notice_ratelimited(fmt, ...) \
693 printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
694 #define pr_info_ratelimited(fmt, ...) \
695 printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
696 /* no pr_cont_ratelimited, don't do that... */
699 #define pr_devel_ratelimited(fmt, ...) \
700 printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
702 #define pr_devel_ratelimited(fmt, ...) \
703 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
706 /* If you are writing a driver, please use dev_dbg instead */
707 #if defined(CONFIG_DYNAMIC_DEBUG) || \
708 (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
709 /* descriptor check is first to prevent flooding with "callbacks suppressed" */
710 #define pr_debug_ratelimited(fmt, ...) \
712 static DEFINE_RATELIMIT_STATE(_rs, \
713 DEFAULT_RATELIMIT_INTERVAL, \
714 DEFAULT_RATELIMIT_BURST); \
715 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, pr_fmt(fmt)); \
716 if (DYNAMIC_DEBUG_BRANCH(descriptor) && \
718 __dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__); \
721 #define pr_debug_ratelimited(fmt, ...) \
722 printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
724 #define pr_debug_ratelimited(fmt, ...) \
725 no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
728 extern const struct file_operations kmsg_fops;
735 extern int hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
736 int groupsize, char *linebuf, size_t linebuflen,
739 extern void print_hex_dump(const char *level, const char *prefix_str,
740 int prefix_type, int rowsize, int groupsize,
741 const void *buf, size_t len, bool ascii);
743 static inline void print_hex_dump(const char *level, const char *prefix_str,
744 int prefix_type, int rowsize, int groupsize,
745 const void *buf, size_t len, bool ascii)
748 static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
749 const void *buf, size_t len)
755 #if defined(CONFIG_DYNAMIC_DEBUG) || \
756 (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
757 #define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
758 groupsize, buf, len, ascii) \
759 dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
760 groupsize, buf, len, ascii)
762 #define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
763 groupsize, buf, len, ascii) \
764 print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \
765 groupsize, buf, len, ascii)
767 static inline void print_hex_dump_debug(const char *prefix_str, int prefix_type,
768 int rowsize, int groupsize,
769 const void *buf, size_t len, bool ascii)
775 * print_hex_dump_bytes - shorthand form of print_hex_dump() with default params
776 * @prefix_str: string to prefix each line with;
777 * caller supplies trailing spaces for alignment if desired
778 * @prefix_type: controls whether prefix of an offset, address, or none
779 * is printed (%DUMP_PREFIX_OFFSET, %DUMP_PREFIX_ADDRESS, %DUMP_PREFIX_NONE)
780 * @buf: data blob to dump
781 * @len: number of bytes in the @buf
783 * Calls print_hex_dump(), with log level of KERN_DEBUG,
784 * rowsize of 16, groupsize of 1, and ASCII output included.
786 #define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \
787 print_hex_dump_debug(prefix_str, prefix_type, 16, 1, buf, len, true)