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authorLinus Torvalds <torvalds@linux-foundation.org>2010-11-15 16:37:37 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-11-15 16:37:37 -0500
commit968ab1838a5d48f02f5b471aa1d0e59e2cc2ccbc (patch)
tree0f4258c00afbb2a8ad137acf34805cfeb0ed1077
parent22d3243de86bc92d874abb7c5b185d5c47aba323 (diff)
include/linux/kernel.h: Move logging bits to include/linux/printk.h
Move the logging bits from kernel.h into printk.h so that there is a bit more logical separation of the generic from the printk logging specific parts. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat
-rw-r--r--include/linux/kernel.h245
-rw-r--r--include/linux/printk.h248
2 files changed, 249 insertions, 244 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index fc3da9e4da19..b6de9a6f7018 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -17,13 +17,11 @@
17#include <linux/bitops.h> 17#include <linux/bitops.h>
18#include <linux/log2.h> 18#include <linux/log2.h>
19#include <linux/typecheck.h> 19#include <linux/typecheck.h>
20#include <linux/printk.h>
20#include <linux/dynamic_debug.h> 21#include <linux/dynamic_debug.h>
21#include <asm/byteorder.h> 22#include <asm/byteorder.h>
22#include <asm/bug.h> 23#include <asm/bug.h>
23 24
24extern const char linux_banner[];
25extern const char linux_proc_banner[];
26
27#define USHRT_MAX ((u16)(~0U)) 25#define USHRT_MAX ((u16)(~0U))
28#define SHRT_MAX ((s16)(USHRT_MAX>>1)) 26#define SHRT_MAX ((s16)(USHRT_MAX>>1))
29#define SHRT_MIN ((s16)(-SHRT_MAX - 1)) 27#define SHRT_MIN ((s16)(-SHRT_MAX - 1))
@@ -110,31 +108,6 @@ extern const char linux_proc_banner[];
110 */ 108 */
111#define lower_32_bits(n) ((u32)(n)) 109#define lower_32_bits(n) ((u32)(n))
112 110
113#define KERN_EMERG "<0>" /* system is unusable */
114#define KERN_ALERT "<1>" /* action must be taken immediately */
115#define KERN_CRIT "<2>" /* critical conditions */
116#define KERN_ERR "<3>" /* error conditions */
117#define KERN_WARNING "<4>" /* warning conditions */
118#define KERN_NOTICE "<5>" /* normal but significant condition */
119#define KERN_INFO "<6>" /* informational */
120#define KERN_DEBUG "<7>" /* debug-level messages */
121
122/* Use the default kernel loglevel */
123#define KERN_DEFAULT "<d>"
124/*
125 * Annotation for a "continued" line of log printout (only done after a
126 * line that had no enclosing \n). Only to be used by core/arch code
127 * during early bootup (a continued line is not SMP-safe otherwise).
128 */
129#define KERN_CONT "<c>"
130
131extern int console_printk[];
132
133#define console_loglevel (console_printk[0])
134#define default_message_loglevel (console_printk[1])
135#define minimum_console_loglevel (console_printk[2])
136#define default_console_loglevel (console_printk[3])
137
138struct completion; 111struct completion;
139struct pt_regs; 112struct pt_regs;
140struct user; 113struct user;
@@ -187,11 +160,6 @@ static inline void might_fault(void)
187} 160}
188#endif 161#endif
189 162
190struct va_format {
191 const char *fmt;
192 va_list *va;
193};
194
195extern struct atomic_notifier_head panic_notifier_list; 163extern struct atomic_notifier_head panic_notifier_list;
196extern long (*panic_blink)(int state); 164extern long (*panic_blink)(int state);
197NORET_TYPE void panic(const char * fmt, ...) 165NORET_TYPE void panic(const char * fmt, ...)
@@ -245,115 +213,8 @@ extern int func_ptr_is_kernel_text(void *ptr);
245struct pid; 213struct pid;
246extern struct pid *session_of_pgrp(struct pid *pgrp); 214extern struct pid *session_of_pgrp(struct pid *pgrp);
247 215
248/*
249 * FW_BUG
250 * Add this to a message where you are sure the firmware is buggy or behaves
251 * really stupid or out of spec. Be aware that the responsible BIOS developer
252 * should be able to fix this issue or at least get a concrete idea of the
253 * problem by reading your message without the need of looking at the kernel
254 * code.
255 *
256 * Use it for definite and high priority BIOS bugs.
257 *
258 * FW_WARN
259 * Use it for not that clear (e.g. could the kernel messed up things already?)
260 * and medium priority BIOS bugs.
261 *
262 * FW_INFO
263 * Use this one if you want to tell the user or vendor about something
264 * suspicious, but generally harmless related to the firmware.
265 *
266 * Use it for information or very low priority BIOS bugs.
267 */
268#define FW_BUG "[Firmware Bug]: "
269#define FW_WARN "[Firmware Warn]: "
270#define FW_INFO "[Firmware Info]: "
271
272/*
273 * HW_ERR
274 * Add this to a message for hardware errors, so that user can report
275 * it to hardware vendor instead of LKML or software vendor.
276 */
277#define HW_ERR "[Hardware Error]: "
278
279#ifdef CONFIG_PRINTK
280asmlinkage int vprintk(const char *fmt, va_list args)
281 __attribute__ ((format (printf, 1, 0)));
282asmlinkage int printk(const char * fmt, ...)
283 __attribute__ ((format (printf, 1, 2))) __cold;
284
285/*
286 * Please don't use printk_ratelimit(), because it shares ratelimiting state
287 * with all other unrelated printk_ratelimit() callsites. Instead use
288 * printk_ratelimited() or plain old __ratelimit().
289 */
290extern int __printk_ratelimit(const char *func);
291#define printk_ratelimit() __printk_ratelimit(__func__)
292extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
293 unsigned int interval_msec);
294
295extern int printk_delay_msec;
296extern int dmesg_restrict;
297
298/*
299 * Print a one-time message (analogous to WARN_ONCE() et al):
300 */
301#define printk_once(x...) ({ \
302 static bool __print_once; \
303 \
304 if (!__print_once) { \
305 __print_once = true; \
306 printk(x); \
307 } \
308})
309
310void log_buf_kexec_setup(void);
311#else
312static inline int vprintk(const char *s, va_list args)
313 __attribute__ ((format (printf, 1, 0)));
314static inline int vprintk(const char *s, va_list args) { return 0; }
315static inline int printk(const char *s, ...)
316 __attribute__ ((format (printf, 1, 2)));
317static inline int __cold printk(const char *s, ...) { return 0; }
318static inline int printk_ratelimit(void) { return 0; }
319static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, \
320 unsigned int interval_msec) \
321 { return false; }
322
323/* No effect, but we still get type checking even in the !PRINTK case: */
324#define printk_once(x...) printk(x)
325
326static inline void log_buf_kexec_setup(void)
327{
328}
329#endif
330
331/*
332 * Dummy printk for disabled debugging statements to use whilst maintaining
333 * gcc's format and side-effect checking.
334 */
335static inline __attribute__ ((format (printf, 1, 2)))
336int no_printk(const char *s, ...) { return 0; }
337
338extern int printk_needs_cpu(int cpu);
339extern void printk_tick(void);
340
341extern void asmlinkage __attribute__((format(printf, 1, 2)))
342 early_printk(const char *fmt, ...);
343
344unsigned long int_sqrt(unsigned long); 216unsigned long int_sqrt(unsigned long);
345 217
346static inline void console_silent(void)
347{
348 console_loglevel = 0;
349}
350
351static inline void console_verbose(void)
352{
353 if (console_loglevel)
354 console_loglevel = 15;
355}
356
357extern void bust_spinlocks(int yes); 218extern void bust_spinlocks(int yes);
358extern void wake_up_klogd(void); 219extern void wake_up_klogd(void);
359extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */ 220extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */
@@ -390,22 +251,6 @@ extern enum system_states {
390#define TAINT_CRAP 10 251#define TAINT_CRAP 10
391#define TAINT_FIRMWARE_WORKAROUND 11 252#define TAINT_FIRMWARE_WORKAROUND 11
392 253
393extern void dump_stack(void) __cold;
394
395enum {
396 DUMP_PREFIX_NONE,
397 DUMP_PREFIX_ADDRESS,
398 DUMP_PREFIX_OFFSET
399};
400extern void hex_dump_to_buffer(const void *buf, size_t len,
401 int rowsize, int groupsize,
402 char *linebuf, size_t linebuflen, bool ascii);
403extern void print_hex_dump(const char *level, const char *prefix_str,
404 int prefix_type, int rowsize, int groupsize,
405 const void *buf, size_t len, bool ascii);
406extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
407 const void *buf, size_t len);
408
409extern const char hex_asc[]; 254extern const char hex_asc[];
410#define hex_asc_lo(x) hex_asc[((x) & 0x0f)] 255#define hex_asc_lo(x) hex_asc[((x) & 0x0f)]
411#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4] 256#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4]
@@ -419,94 +264,6 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
419 264
420extern int hex_to_bin(char ch); 265extern int hex_to_bin(char ch);
421 266
422#ifndef pr_fmt
423#define pr_fmt(fmt) fmt
424#endif
425
426#define pr_emerg(fmt, ...) \
427 printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
428#define pr_alert(fmt, ...) \
429 printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
430#define pr_crit(fmt, ...) \
431 printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
432#define pr_err(fmt, ...) \
433 printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
434#define pr_warning(fmt, ...) \
435 printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
436#define pr_warn pr_warning
437#define pr_notice(fmt, ...) \
438 printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
439#define pr_info(fmt, ...) \
440 printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
441#define pr_cont(fmt, ...) \
442 printk(KERN_CONT fmt, ##__VA_ARGS__)
443
444/* pr_devel() should produce zero code unless DEBUG is defined */
445#ifdef DEBUG
446#define pr_devel(fmt, ...) \
447 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
448#else
449#define pr_devel(fmt, ...) \
450 ({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })
451#endif
452
453/* If you are writing a driver, please use dev_dbg instead */
454#if defined(DEBUG)
455#define pr_debug(fmt, ...) \
456 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
457#elif defined(CONFIG_DYNAMIC_DEBUG)
458/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
459#define pr_debug(fmt, ...) \
460 dynamic_pr_debug(fmt, ##__VA_ARGS__)
461#else
462#define pr_debug(fmt, ...) \
463 ({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })
464#endif
465
466/*
467 * ratelimited messages with local ratelimit_state,
468 * no local ratelimit_state used in the !PRINTK case
469 */
470#ifdef CONFIG_PRINTK
471#define printk_ratelimited(fmt, ...) ({ \
472 static DEFINE_RATELIMIT_STATE(_rs, \
473 DEFAULT_RATELIMIT_INTERVAL, \
474 DEFAULT_RATELIMIT_BURST); \
475 \
476 if (__ratelimit(&_rs)) \
477 printk(fmt, ##__VA_ARGS__); \
478})
479#else
480/* No effect, but we still get type checking even in the !PRINTK case: */
481#define printk_ratelimited printk
482#endif
483
484#define pr_emerg_ratelimited(fmt, ...) \
485 printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
486#define pr_alert_ratelimited(fmt, ...) \
487 printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
488#define pr_crit_ratelimited(fmt, ...) \
489 printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
490#define pr_err_ratelimited(fmt, ...) \
491 printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
492#define pr_warning_ratelimited(fmt, ...) \
493 printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
494#define pr_warn_ratelimited pr_warning_ratelimited
495#define pr_notice_ratelimited(fmt, ...) \
496 printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
497#define pr_info_ratelimited(fmt, ...) \
498 printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
499/* no pr_cont_ratelimited, don't do that... */
500/* If you are writing a driver, please use dev_dbg instead */
501#if defined(DEBUG)
502#define pr_debug_ratelimited(fmt, ...) \
503 printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
504#else
505#define pr_debug_ratelimited(fmt, ...) \
506 ({ if (0) printk_ratelimited(KERN_DEBUG pr_fmt(fmt), \
507 ##__VA_ARGS__); 0; })
508#endif
509
510/* 267/*
511 * General tracing related utility functions - trace_printk(), 268 * General tracing related utility functions - trace_printk(),
512 * tracing_on/tracing_off and tracing_start()/tracing_stop 269 * tracing_on/tracing_off and tracing_start()/tracing_stop
diff --git a/include/linux/printk.h b/include/linux/printk.h
new file mode 100644
index 000000000000..b772ca5fbdf0
--- /dev/null
+++ b/include/linux/printk.h
@@ -0,0 +1,248 @@
1#ifndef __KERNEL_PRINTK__
2#define __KERNEL_PRINTK__
3
4extern const char linux_banner[];
5extern const char linux_proc_banner[];
6
7#define KERN_EMERG "<0>" /* system is unusable */
8#define KERN_ALERT "<1>" /* action must be taken immediately */
9#define KERN_CRIT "<2>" /* critical conditions */
10#define KERN_ERR "<3>" /* error conditions */
11#define KERN_WARNING "<4>" /* warning conditions */
12#define KERN_NOTICE "<5>" /* normal but significant condition */
13#define KERN_INFO "<6>" /* informational */
14#define KERN_DEBUG "<7>" /* debug-level messages */
15
16/* Use the default kernel loglevel */
17#define KERN_DEFAULT "<d>"
18/*
19 * Annotation for a "continued" line of log printout (only done after a
20 * line that had no enclosing \n). Only to be used by core/arch code
21 * during early bootup (a continued line is not SMP-safe otherwise).
22 */
23#define KERN_CONT "<c>"
24
25extern int console_printk[];
26
27#define console_loglevel (console_printk[0])
28#define default_message_loglevel (console_printk[1])
29#define minimum_console_loglevel (console_printk[2])
30#define default_console_loglevel (console_printk[3])
31
32struct va_format {
33 const char *fmt;
34 va_list *va;
35};
36
37/*
38 * FW_BUG
39 * Add this to a message where you are sure the firmware is buggy or behaves
40 * really stupid or out of spec. Be aware that the responsible BIOS developer
41 * should be able to fix this issue or at least get a concrete idea of the
42 * problem by reading your message without the need of looking at the kernel
43 * code.
44 *
45 * Use it for definite and high priority BIOS bugs.
46 *
47 * FW_WARN
48 * Use it for not that clear (e.g. could the kernel messed up things already?)
49 * and medium priority BIOS bugs.
50 *
51 * FW_INFO
52 * Use this one if you want to tell the user or vendor about something
53 * suspicious, but generally harmless related to the firmware.
54 *
55 * Use it for information or very low priority BIOS bugs.
56 */
57#define FW_BUG "[Firmware Bug]: "
58#define FW_WARN "[Firmware Warn]: "
59#define FW_INFO "[Firmware Info]: "
60
61/*
62 * HW_ERR
63 * Add this to a message for hardware errors, so that user can report
64 * it to hardware vendor instead of LKML or software vendor.
65 */
66#define HW_ERR "[Hardware Error]: "
67
68#ifdef CONFIG_PRINTK
69asmlinkage int vprintk(const char *fmt, va_list args)
70 __attribute__ ((format (printf, 1, 0)));
71asmlinkage int printk(const char * fmt, ...)
72 __attribute__ ((format (printf, 1, 2))) __cold;
73
74/*
75 * Please don't use printk_ratelimit(), because it shares ratelimiting state
76 * with all other unrelated printk_ratelimit() callsites. Instead use
77 * printk_ratelimited() or plain old __ratelimit().
78 */
79extern int __printk_ratelimit(const char *func);
80#define printk_ratelimit() __printk_ratelimit(__func__)
81extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
82 unsigned int interval_msec);
83
84extern int printk_delay_msec;
85extern int dmesg_restrict;
86
87/*
88 * Print a one-time message (analogous to WARN_ONCE() et al):
89 */
90#define printk_once(x...) ({ \
91 static bool __print_once; \
92 \
93 if (!__print_once) { \
94 __print_once = true; \
95 printk(x); \
96 } \
97})
98
99void log_buf_kexec_setup(void);
100#else
101static inline int vprintk(const char *s, va_list args)
102 __attribute__ ((format (printf, 1, 0)));
103static inline int vprintk(const char *s, va_list args) { return 0; }
104static inline int printk(const char *s, ...)
105 __attribute__ ((format (printf, 1, 2)));
106static inline int __cold printk(const char *s, ...) { return 0; }
107static inline int printk_ratelimit(void) { return 0; }
108static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, \
109 unsigned int interval_msec) \
110 { return false; }
111
112/* No effect, but we still get type checking even in the !PRINTK case: */
113#define printk_once(x...) printk(x)
114
115static inline void log_buf_kexec_setup(void)
116{
117}
118#endif
119
120/*
121 * Dummy printk for disabled debugging statements to use whilst maintaining
122 * gcc's format and side-effect checking.
123 */
124static inline __attribute__ ((format (printf, 1, 2)))
125int no_printk(const char *s, ...) { return 0; }
126
127extern int printk_needs_cpu(int cpu);
128extern void printk_tick(void);
129
130extern void asmlinkage __attribute__((format(printf, 1, 2)))
131 early_printk(const char *fmt, ...);
132
133static inline void console_silent(void)
134{
135 console_loglevel = 0;
136}
137
138static inline void console_verbose(void)
139{
140 if (console_loglevel)
141 console_loglevel = 15;
142}
143
144extern void dump_stack(void) __cold;
145
146enum {
147 DUMP_PREFIX_NONE,
148 DUMP_PREFIX_ADDRESS,
149 DUMP_PREFIX_OFFSET
150};
151extern void hex_dump_to_buffer(const void *buf, size_t len,
152 int rowsize, int groupsize,
153 char *linebuf, size_t linebuflen, bool ascii);
154extern void print_hex_dump(const char *level, const char *prefix_str,
155 int prefix_type, int rowsize, int groupsize,
156 const void *buf, size_t len, bool ascii);
157extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
158 const void *buf, size_t len);
159
160#ifndef pr_fmt
161#define pr_fmt(fmt) fmt
162#endif
163
164#define pr_emerg(fmt, ...) \
165 printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
166#define pr_alert(fmt, ...) \
167 printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
168#define pr_crit(fmt, ...) \
169 printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
170#define pr_err(fmt, ...) \
171 printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
172#define pr_warning(fmt, ...) \
173 printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
174#define pr_warn pr_warning
175#define pr_notice(fmt, ...) \
176 printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
177#define pr_info(fmt, ...) \
178 printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
179#define pr_cont(fmt, ...) \
180 printk(KERN_CONT fmt, ##__VA_ARGS__)
181
182/* pr_devel() should produce zero code unless DEBUG is defined */
183#ifdef DEBUG
184#define pr_devel(fmt, ...) \
185 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
186#else
187#define pr_devel(fmt, ...) \
188 ({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })
189#endif
190
191/* If you are writing a driver, please use dev_dbg instead */
192#if defined(DEBUG)
193#define pr_debug(fmt, ...) \
194 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
195#elif defined(CONFIG_DYNAMIC_DEBUG)
196/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
197#define pr_debug(fmt, ...) \
198 dynamic_pr_debug(fmt, ##__VA_ARGS__)
199#else
200#define pr_debug(fmt, ...) \
201 ({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })
202#endif
203
204/*
205 * ratelimited messages with local ratelimit_state,
206 * no local ratelimit_state used in the !PRINTK case
207 */
208#ifdef CONFIG_PRINTK
209#define printk_ratelimited(fmt, ...) ({ \
210 static DEFINE_RATELIMIT_STATE(_rs, \
211 DEFAULT_RATELIMIT_INTERVAL, \
212 DEFAULT_RATELIMIT_BURST); \
213 \
214 if (__ratelimit(&_rs)) \
215 printk(fmt, ##__VA_ARGS__); \
216})
217#else
218/* No effect, but we still get type checking even in the !PRINTK case: */
219#define printk_ratelimited printk
220#endif
221
222#define pr_emerg_ratelimited(fmt, ...) \
223 printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
224#define pr_alert_ratelimited(fmt, ...) \
225 printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
226#define pr_crit_ratelimited(fmt, ...) \
227 printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
228#define pr_err_ratelimited(fmt, ...) \
229 printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
230#define pr_warning_ratelimited(fmt, ...) \
231 printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
232#define pr_warn_ratelimited pr_warning_ratelimited
233#define pr_notice_ratelimited(fmt, ...) \
234 printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
235#define pr_info_ratelimited(fmt, ...) \
236 printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
237/* no pr_cont_ratelimited, don't do that... */
238/* If you are writing a driver, please use dev_dbg instead */
239#if defined(DEBUG)
240#define pr_debug_ratelimited(fmt, ...) \
241 printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
242#else
243#define pr_debug_ratelimited(fmt, ...) \
244 ({ if (0) printk_ratelimited(KERN_DEBUG pr_fmt(fmt), \
245 ##__VA_ARGS__); 0; })
246#endif
247
248#endif
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