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#include <linux/stdarg.h>#include <linux/init.h>#include <linux/kern_levels.h>#include <linux/linkage.h>#include <linux/ratelimit_types.h>#include <linux/once_lite.h>
struct console;
extern const char linux_banner[];extern const char linux_proc_banner[];
extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */
#define PRINTK_MAX_SINGLE_HEADER_LEN 2
static inline int printk_get_level(const char *buffer){ if (buffer[0] == KERN_SOH_ASCII && buffer[1]) { switch (buffer[1]) { case '0' ... '7': case 'c': /* KERN_CONT */ return buffer[1]; } } return 0;}
static inline const char *printk_skip_level(const char *buffer){ if (printk_get_level(buffer)) return buffer + 2;
return buffer;}
static inline const char *printk_skip_headers(const char *buffer){ while (printk_get_level(buffer)) buffer = printk_skip_level(buffer);
return buffer;}
/* printk's without a loglevel use this.. */#define MESSAGE_LOGLEVEL_DEFAULT CONFIG_MESSAGE_LOGLEVEL_DEFAULT
/* We show everything that is MORE important than this.. */#define CONSOLE_LOGLEVEL_SILENT 0 /* Mum's the word */#define CONSOLE_LOGLEVEL_MIN 1 /* Minimum loglevel we let people use */#define CONSOLE_LOGLEVEL_DEBUG 10 /* issue debug messages */#define CONSOLE_LOGLEVEL_MOTORMOUTH 15 /* You can't shut this one up */
/* * Default used to be hard-coded at 7, quiet used to be hardcoded at 4, * we're now allowing both to be set from kernel config. */#define CONSOLE_LOGLEVEL_DEFAULT CONFIG_CONSOLE_LOGLEVEL_DEFAULT#define CONSOLE_LOGLEVEL_QUIET CONFIG_CONSOLE_LOGLEVEL_QUIET
int match_devname_and_update_preferred_console(const char *match, const char *name, const short idx);
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])
extern void console_verbose(void);
/* strlen("ratelimit") + 1 */#define DEVKMSG_STR_MAX_SIZE 10extern char devkmsg_log_str[DEVKMSG_STR_MAX_SIZE];
extern int suppress_printk;
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]: "
/* * DEPRECATED * Add this to a message whenever you want to warn user space about the use * of a deprecated aspect of an API so they can stop using it */#define DEPRECATED "[Deprecated]: "
/* * Dummy printk for disabled debugging statements to use whilst maintaining * gcc's format checking. */#define no_printk(fmt, ...) \({ \ if (0) \ _printk(fmt, ##__VA_ARGS__); \ 0; \})
#ifdef CONFIG_EARLY_PRINTKextern asmlinkage __printf(1, 2)void early_printk(const char *fmt, ...);#elsestatic inline __printf(1, 2) __coldvoid early_printk(const char *s, ...) { }#endif
struct dev_printk_info;
#ifdef CONFIG_PRINTKasmlinkage __printf(4, 0)int vprintk_emit(int facility, int level, const struct dev_printk_info *dev_info, const char *fmt, va_list args);
asmlinkage __printf(1, 0)int vprintk(const char *fmt, va_list args);__printf(1, 0)int vprintk_deferred(const char *fmt, va_list args);
asmlinkage __printf(1, 2) __coldint _printk(const char *fmt, ...);
/* * Special printk facility for scheduler/timekeeping use only, _DO_NOT_USE_ ! */__printf(1, 2) __cold int _printk_deferred(const char *fmt, ...);
extern void __printk_deferred_enter(void);extern void __printk_deferred_exit(void);
extern void printk_force_console_enter(void);extern void printk_force_console_exit(void);
/* * The printk_deferred_enter/exit macros are available only as a hack for * some code paths that need to defer all printk console printing. Interrupts * must be disabled for the deferred duration. */#define printk_deferred_enter() __printk_deferred_enter()#define printk_deferred_exit() __printk_deferred_exit()
/* * 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 void wake_up_klogd(void);
char *log_buf_addr_get(void);u32 log_buf_len_get(void);void log_buf_vmcoreinfo_setup(void);void __init setup_log_buf(int early);__printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...);void dump_stack_print_info(const char *log_lvl);void show_regs_print_info(const char *log_lvl);extern asmlinkage void dump_stack_lvl(const char *log_lvl) __cold;extern asmlinkage void dump_stack(void) __cold;void printk_trigger_flush(void);void console_try_replay_all(void);void printk_legacy_allow_panic_sync(void);extern bool nbcon_device_try_acquire(struct console *con);extern void nbcon_device_release(struct console *con);void nbcon_atomic_flush_unsafe(void);bool pr_flush(int timeout_ms, bool reset_on_progress);#elsestatic inline __printf(1, 0)int vprintk(const char *s, va_list args){ return 0;}static inline __printf(1, 0)int vprintk_deferred(const char *fmt, va_list args){ return 0;}static inline __printf(1, 2) __coldint _printk(const char *s, ...){ return 0;}static inline __printf(1, 2) __coldint _printk_deferred(const char *s, ...){ return 0;}
static inline void printk_deferred_enter(void){}
static inline void printk_deferred_exit(void){}
static inline void printk_force_console_enter(void){}
static inline void printk_force_console_exit(void){}
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 char *log_buf_addr_get(void){ return NULL;}
static inline u32 log_buf_len_get(void){ return 0;}
static inline void log_buf_vmcoreinfo_setup(void){}
static inline void setup_log_buf(int early){}
static inline __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...){}
static inline void dump_stack_print_info(const char *log_lvl){}
static inline void show_regs_print_info(const char *log_lvl){}
static inline void dump_stack_lvl(const char *log_lvl){}
static inline void dump_stack(void){}static inline void printk_trigger_flush(void){}static inline void console_try_replay_all(void){}
static inline void printk_legacy_allow_panic_sync(void){}
static inline bool nbcon_device_try_acquire(struct console *con){ return false;}
static inline void nbcon_device_release(struct console *con){}
static inline void nbcon_atomic_flush_unsafe(void){}
static inline bool pr_flush(int timeout_ms, bool reset_on_progress){ return true;}
#endif
#ifdef CONFIG_SMPextern int __printk_cpu_sync_try_get(void);extern void __printk_cpu_sync_wait(void);extern void __printk_cpu_sync_put(void);
#else
#define __printk_cpu_sync_try_get() true#define __printk_cpu_sync_wait()#define __printk_cpu_sync_put()#endif /* CONFIG_SMP */
/** * printk_cpu_sync_get_irqsave() - Disable interrupts and acquire the printk * cpu-reentrant spinning lock. * @flags: Stack-allocated storage for saving local interrupt state, * to be passed to printk_cpu_sync_put_irqrestore(). * * If the lock is owned by another CPU, spin until it becomes available. * Interrupts are restored while spinning. * * CAUTION: This function must be used carefully. It does not behave like a * typical lock. Here are important things to watch out for... * * * This function is reentrant on the same CPU. Therefore the calling * code must not assume exclusive access to data if code accessing the * data can run reentrant or within NMI context on the same CPU. * * * If there exists usage of this function from NMI context, it becomes * unsafe to perform any type of locking or spinning to wait for other * CPUs after calling this function from any context. This includes * using spinlocks or any other busy-waiting synchronization methods. */#define printk_cpu_sync_get_irqsave(flags) \ for (;;) { \ local_irq_save(flags); \ if (__printk_cpu_sync_try_get()) \ break; \ local_irq_restore(flags); \ __printk_cpu_sync_wait(); \ }
/** * printk_cpu_sync_put_irqrestore() - Release the printk cpu-reentrant spinning * lock and restore interrupts. * @flags: Caller's saved interrupt state, from printk_cpu_sync_get_irqsave(). */#define printk_cpu_sync_put_irqrestore(flags) \ do { \ __printk_cpu_sync_put(); \ local_irq_restore(flags); \ } while (0)
extern int kptr_restrict;
/** * pr_fmt - used by the pr_*() macros to generate the printk format string * @fmt: format string passed from a pr_*() macro * * This macro can be used to generate a unified format string for pr_*() * macros. A common use is to prefix all pr_*() messages in a file with a common * string. For example, defining this at the top of a source file: * * #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt * * would prefix all pr_info, pr_emerg... messages in the file with the module * name. */#ifndef pr_fmt#define pr_fmt(fmt) fmt#endif
struct module;
#ifdef CONFIG_PRINTK_INDEXstruct pi_entry { const char *fmt; const char *func; const char *file; unsigned int line;
/* * While printk and pr_* have the level stored in the string at compile * time, some subsystems dynamically add it at runtime through the * format string. For these dynamic cases, we allow the subsystem to * tell us the level at compile time. * * NULL indicates that the level, if any, is stored in fmt. */ const char *level;
/* * The format string used by various subsystem specific printk() * wrappers to prefix the message. * * Note that the static prefix defined by the pr_fmt() macro is stored * directly in the message format (@fmt), not here. */ const char *subsys_fmt_prefix;} __packed;
#define __printk_index_emit(_fmt, _level, _subsys_fmt_prefix) \ do { \ if (__builtin_constant_p(_fmt) && __builtin_constant_p(_level)) { \ /* * We check __builtin_constant_p multiple times here * for the same input because GCC will produce an error * if we try to assign a static variable to fmt if it * is not a constant, even with the outer if statement. */ \ static const struct pi_entry _entry \ __used = { \ .fmt = __builtin_constant_p(_fmt) ? (_fmt) : NULL, \ .func = __func__, \ .file = __FILE__, \ .line = __LINE__, \ .level = __builtin_constant_p(_level) ? (_level) : NULL, \ .subsys_fmt_prefix = _subsys_fmt_prefix,\ }; \ static const struct pi_entry *_entry_ptr \ __used __section(".printk_index") = &_entry; \ } \ } while (0)
#else /* !CONFIG_PRINTK_INDEX */#define __printk_index_emit(...) do {} while (0)#endif /* CONFIG_PRINTK_INDEX */
/* * Some subsystems have their own custom printk that applies a va_format to a * generic format, for example, to include a device number or other metadata * alongside the format supplied by the caller. * * In order to store these in the way they would be emitted by the printk * infrastructure, the subsystem provides us with the start, fixed string, and * any subsequent text in the format string. * * We take a variable argument list as pr_fmt/dev_fmt/etc are sometimes passed * as multiple arguments (eg: `"%s: ", "blah"`), and we must only take the * first one. * * subsys_fmt_prefix must be known at compile time, or compilation will fail * (since this is a mistake). If fmt or level is not known at compile time, no * index entry will be made (since this can legitimately happen). */#define printk_index_subsys_emit(subsys_fmt_prefix, level, fmt, ...) \ __printk_index_emit(fmt, level, subsys_fmt_prefix)
#define printk_index_wrap(_p_func, _fmt, ...) \ ({ \ __printk_index_emit(_fmt, NULL, NULL); \ _p_func(_fmt, ##__VA_ARGS__); \ })
/** * printk - print a kernel message * @fmt: format string * * This is printk(). It can be called from any context. We want it to work. * * If printk indexing is enabled, _printk() is called from printk_index_wrap. * Otherwise, printk is simply #defined to _printk. * * We try to grab the console_lock. If we succeed, it's easy - we log the * output and call the console drivers. If we fail to get the semaphore, we * place the output into the log buffer and return. The current holder of * the console_sem will notice the new output in console_unlock(); and will * send it to the consoles before releasing the lock. * * One effect of this deferred printing is that code which calls printk() and * then changes console_loglevel may break. This is because console_loglevel * is inspected when the actual printing occurs. * * See also: * printf(3) * * See the vsnprintf() documentation for format string extensions over C99. */#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)#define printk_deferred(fmt, ...) \ printk_index_wrap(_printk_deferred, fmt, ##__VA_ARGS__)
/** * pr_emerg - Print an emergency-level message * @fmt: format string * @...: arguments for the format string * * This macro expands to a printk with KERN_EMERG loglevel. It uses pr_fmt() to * generate the format string. */#define pr_emerg(fmt, ...) \ printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)/** * pr_alert - Print an alert-level message * @fmt: format string * @...: arguments for the format string * * This macro expands to a printk with KERN_ALERT loglevel. It uses pr_fmt() to * generate the format string. */#define pr_alert(fmt, ...) \ printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)/** * pr_crit - Print a critical-level message * @fmt: format string * @...: arguments for the format string * * This macro expands to a printk with KERN_CRIT loglevel. It uses pr_fmt() to * generate the format string. */#define pr_crit(fmt, ...) \ printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)/** * pr_err - Print an error-level message * @fmt: format string * @...: arguments for the format string * * This macro expands to a printk with KERN_ERR loglevel. It uses pr_fmt() to * generate the format string. */#define pr_err(fmt, ...) \ printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)/** * pr_warn - Print a warning-level message * @fmt: format string * @...: arguments for the format string * * This macro expands to a printk with KERN_WARNING loglevel. It uses pr_fmt() * to generate the format string. */#define pr_warn(fmt, ...) \ printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)/** * pr_notice - Print a notice-level message * @fmt: format string * @...: arguments for the format string * * This macro expands to a printk with KERN_NOTICE loglevel. It uses pr_fmt() to * generate the format string. */#define pr_notice(fmt, ...) \ printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)/** * pr_info - Print an info-level message * @fmt: format string * @...: arguments for the format string * * This macro expands to a printk with KERN_INFO loglevel. It uses pr_fmt() to * generate the format string. */#define pr_info(fmt, ...) \ printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
/** * pr_cont - Continues a previous log message in the same line. * @fmt: format string * @...: arguments for the format string * * This macro expands to a printk with KERN_CONT loglevel. It should only be * used when continuing a log message with no newline ('\n') enclosed. Otherwise * it defaults back to KERN_DEFAULT loglevel. */#define pr_cont(fmt, ...) \ printk(KERN_CONT fmt, ##__VA_ARGS__)
/** * pr_devel - Print a debug-level message conditionally * @fmt: format string * @...: arguments for the format string * * This macro expands to a printk with KERN_DEBUG loglevel if DEBUG is * defined. Otherwise it does nothing. * * It uses pr_fmt() to generate the format string. */#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) || \ (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))#include <linux/dynamic_debug.h>
/** * pr_debug - Print a debug-level message conditionally * @fmt: format string * @...: arguments for the format string * * This macro expands to dynamic_pr_debug() if CONFIG_DYNAMIC_DEBUG is * set. Otherwise, if DEBUG is defined, it's equivalent to a printk with * KERN_DEBUG loglevel. If DEBUG is not defined it does nothing. * * It uses pr_fmt() to generate the format string (dynamic_pr_debug() uses * pr_fmt() internally). */#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, ...) \ DO_ONCE_LITE(printk, fmt, ##__VA_ARGS__)#define printk_deferred_once(fmt, ...) \ DO_ONCE_LITE(printk_deferred, fmt, ##__VA_ARGS__)#else#define printk_once(fmt, ...) \ no_printk(fmt, ##__VA_ARGS__)#define printk_deferred_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__)/* no pr_cont_once, don't do that... */
#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(CONFIG_DYNAMIC_DEBUG) || \ (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))/* descriptor check is first to prevent flooding with "callbacks suppressed" */#define pr_debug_ratelimited(fmt, ...) \do { \ static DEFINE_RATELIMIT_STATE(_rs, \ DEFAULT_RATELIMIT_INTERVAL, \ DEFAULT_RATELIMIT_BURST); \ DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, pr_fmt(fmt)); \ if (DYNAMIC_DEBUG_BRANCH(descriptor) && \ __ratelimit(&_rs)) \ __dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__); \} while (0)#elif 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 int hex_dump_to_buffer(const void *buf, size_t len, int rowsize, int groupsize, char *linebuf, size_t linebuflen, bool ascii);#ifdef CONFIG_PRINTKextern 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);#elsestatic 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) || \ (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))#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)#elif defined(DEBUG)#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)#elsestatic inline void print_hex_dump_debug(const char *prefix_str, int prefix_type, int rowsize, int groupsize, const void *buf, size_t len, bool ascii){}#endif
#if defined(DEBUG)#define print_hex_dump_devel(prefix_str, prefix_type, rowsize, \ groupsize, buf, len, ascii) \ print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \ groupsize, buf, len, ascii)#elsestatic inline void print_hex_dump_devel(const char *prefix_str, int prefix_type, int rowsize, int groupsize, const void *buf, size_t len, bool ascii){}#endif
/** * print_hex_dump_bytes - shorthand form of print_hex_dump_debug() with default * params * @prefix_str: string to prefix each line with; * caller supplies trailing spaces for alignment if desired * @prefix_type: controls whether prefix of an offset, address, or none * is printed (%DUMP_PREFIX_OFFSET, %DUMP_PREFIX_ADDRESS, %DUMP_PREFIX_NONE) * @buf: data blob to dump * @len: number of bytes in the @buf * * Calls print_hex_dump_debug(), with log level of KERN_DEBUG, * rowsize of 16, groupsize of 1, and ASCII output included. */#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \ print_hex_dump_debug(prefix_str, prefix_type, 16, 1, buf, len, true)
#endif