11da177e4SLinus Torvalds #ifndef _LINUX_KERNEL_H 21da177e4SLinus Torvalds #define _LINUX_KERNEL_H 31da177e4SLinus Torvalds 41da177e4SLinus Torvalds /* 51da177e4SLinus Torvalds * 'kernel.h' contains some often-used function prototypes etc 61da177e4SLinus Torvalds */ 71da177e4SLinus Torvalds 81da177e4SLinus Torvalds #ifdef __KERNEL__ 91da177e4SLinus Torvalds 101da177e4SLinus Torvalds #include <stdarg.h> 111da177e4SLinus Torvalds #include <linux/linkage.h> 121da177e4SLinus Torvalds #include <linux/stddef.h> 131da177e4SLinus Torvalds #include <linux/types.h> 141da177e4SLinus Torvalds #include <linux/compiler.h> 151da177e4SLinus Torvalds #include <linux/bitops.h> 16f0d1b0b3SDavid Howells #include <linux/log2.h> 17e0deaff4SAndrew Morton #include <linux/typecheck.h> 18717115e1SDave Young #include <linux/ratelimit.h> 19346e15beSJason Baron #include <linux/dynamic_printk.h> 201da177e4SLinus Torvalds #include <asm/byteorder.h> 211da177e4SLinus Torvalds #include <asm/bug.h> 221da177e4SLinus Torvalds 233eb3c740SRoman Zippel extern const char linux_banner[]; 243eb3c740SRoman Zippel extern const char linux_proc_banner[]; 253eb3c740SRoman Zippel 2644f564a4SZhang, Yanmin #define USHORT_MAX ((u16)(~0U)) 2744f564a4SZhang, Yanmin #define SHORT_MAX ((s16)(USHORT_MAX>>1)) 2844f564a4SZhang, Yanmin #define SHORT_MIN (-SHORT_MAX - 1) 291da177e4SLinus Torvalds #define INT_MAX ((int)(~0U>>1)) 301da177e4SLinus Torvalds #define INT_MIN (-INT_MAX - 1) 311da177e4SLinus Torvalds #define UINT_MAX (~0U) 321da177e4SLinus Torvalds #define LONG_MAX ((long)(~0UL>>1)) 331da177e4SLinus Torvalds #define LONG_MIN (-LONG_MAX - 1) 341da177e4SLinus Torvalds #define ULONG_MAX (~0UL) 35111ebb6eSOGAWA Hirofumi #define LLONG_MAX ((long long)(~0ULL>>1)) 36111ebb6eSOGAWA Hirofumi #define LLONG_MIN (-LLONG_MAX - 1) 37111ebb6eSOGAWA Hirofumi #define ULLONG_MAX (~0ULL) 381da177e4SLinus Torvalds 391da177e4SLinus Torvalds #define STACK_MAGIC 0xdeadbeef 401da177e4SLinus Torvalds 412ea58144SLinus Torvalds #define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) 422ea58144SLinus Torvalds #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) 43a83308e6SMatthew Wilcox #define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a))) 44f10db627SHerbert Xu #define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) 452ea58144SLinus Torvalds 46c5e631cfSRusty Russell #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) 47c5e631cfSRusty Russell 484552d5dcSJan Beulich #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f)) 49930631edSSteven Whitehouse #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) 50b4cac1a0SDavid Howells #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) 519fe06081SDarrick J. Wong #define DIV_ROUND_CLOSEST(x, divisor)( \ 529fe06081SDarrick J. Wong { \ 539fe06081SDarrick J. Wong typeof(divisor) __divisor = divisor; \ 549fe06081SDarrick J. Wong (((x) + ((__divisor) / 2)) / (__divisor)); \ 559fe06081SDarrick J. Wong } \ 569fe06081SDarrick J. Wong ) 571da177e4SLinus Torvalds 58ca31e146SEduard - Gabriel Munteanu #define _RET_IP_ (unsigned long)__builtin_return_address(0) 59ca31e146SEduard - Gabriel Munteanu #define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; }) 60ca31e146SEduard - Gabriel Munteanu 612da96acdSJens Axboe #ifdef CONFIG_LBD 622da96acdSJens Axboe # include <asm/div64.h> 632da96acdSJens Axboe # define sector_div(a, b) do_div(a, b) 642da96acdSJens Axboe #else 652da96acdSJens Axboe # define sector_div(n, b)( \ 662da96acdSJens Axboe { \ 672da96acdSJens Axboe int _res; \ 682da96acdSJens Axboe _res = (n) % (b); \ 692da96acdSJens Axboe (n) /= (b); \ 702da96acdSJens Axboe _res; \ 712da96acdSJens Axboe } \ 722da96acdSJens Axboe ) 732da96acdSJens Axboe #endif 742da96acdSJens Axboe 75218e180eSAndrew Morton /** 76218e180eSAndrew Morton * upper_32_bits - return bits 32-63 of a number 77218e180eSAndrew Morton * @n: the number we're accessing 78218e180eSAndrew Morton * 79218e180eSAndrew Morton * A basic shift-right of a 64- or 32-bit quantity. Use this to suppress 80218e180eSAndrew Morton * the "right shift count >= width of type" warning when that quantity is 81218e180eSAndrew Morton * 32-bits. 82218e180eSAndrew Morton */ 83218e180eSAndrew Morton #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 84218e180eSAndrew Morton 85204b885eSJoerg Roedel /** 86204b885eSJoerg Roedel * lower_32_bits - return bits 0-31 of a number 87204b885eSJoerg Roedel * @n: the number we're accessing 88204b885eSJoerg Roedel */ 89204b885eSJoerg Roedel #define lower_32_bits(n) ((u32)(n)) 90204b885eSJoerg Roedel 911da177e4SLinus Torvalds #define KERN_EMERG "<0>" /* system is unusable */ 921da177e4SLinus Torvalds #define KERN_ALERT "<1>" /* action must be taken immediately */ 931da177e4SLinus Torvalds #define KERN_CRIT "<2>" /* critical conditions */ 941da177e4SLinus Torvalds #define KERN_ERR "<3>" /* error conditions */ 951da177e4SLinus Torvalds #define KERN_WARNING "<4>" /* warning conditions */ 961da177e4SLinus Torvalds #define KERN_NOTICE "<5>" /* normal but significant condition */ 971da177e4SLinus Torvalds #define KERN_INFO "<6>" /* informational */ 981da177e4SLinus Torvalds #define KERN_DEBUG "<7>" /* debug-level messages */ 991da177e4SLinus Torvalds 10047492527SIngo Molnar /* 10147492527SIngo Molnar * Annotation for a "continued" line of log printout (only done after a 10247492527SIngo Molnar * line that had no enclosing \n). Only to be used by core/arch code 10347492527SIngo Molnar * during early bootup (a continued line is not SMP-safe otherwise). 10447492527SIngo Molnar */ 10547492527SIngo Molnar #define KERN_CONT "" 10647492527SIngo Molnar 1071da177e4SLinus Torvalds extern int console_printk[]; 1081da177e4SLinus Torvalds 1091da177e4SLinus Torvalds #define console_loglevel (console_printk[0]) 1101da177e4SLinus Torvalds #define default_message_loglevel (console_printk[1]) 1111da177e4SLinus Torvalds #define minimum_console_loglevel (console_printk[2]) 1121da177e4SLinus Torvalds #define default_console_loglevel (console_printk[3]) 1131da177e4SLinus Torvalds 1141da177e4SLinus Torvalds struct completion; 115df2e71fbS[email protected] struct pt_regs; 116df2e71fbS[email protected] struct user; 1171da177e4SLinus Torvalds 118070cb065SUwe Kleine-König #ifdef CONFIG_PREEMPT_VOLUNTARY 119070cb065SUwe Kleine-König extern int _cond_resched(void); 120070cb065SUwe Kleine-König # define might_resched() _cond_resched() 121070cb065SUwe Kleine-König #else 122070cb065SUwe Kleine-König # define might_resched() do { } while (0) 123070cb065SUwe Kleine-König #endif 124070cb065SUwe Kleine-König 1257106a27bSRandy Dunlap #ifdef CONFIG_DEBUG_SPINLOCK_SLEEP 1267106a27bSRandy Dunlap void __might_sleep(char *file, int line); 1271da177e4SLinus Torvalds /** 1281da177e4SLinus Torvalds * might_sleep - annotation for functions that can sleep 1291da177e4SLinus Torvalds * 1301da177e4SLinus Torvalds * this macro will print a stack trace if it is executed in an atomic 1311da177e4SLinus Torvalds * context (spinlock, irq-handler, ...). 1321da177e4SLinus Torvalds * 1331da177e4SLinus Torvalds * This is a useful debugging help to be able to catch problems early and not 134e20ec991SJim Cromie * be bitten later when the calling function happens to sleep when it is not 1351da177e4SLinus Torvalds * supposed to. 1361da177e4SLinus Torvalds */ 137f8cbd99bSIngo Molnar # define might_sleep() \ 138f8cbd99bSIngo Molnar do { __might_sleep(__FILE__, __LINE__); might_resched(); } while (0) 139f8cbd99bSIngo Molnar #else 140f8cbd99bSIngo Molnar # define might_sleep() do { might_resched(); } while (0) 141f8cbd99bSIngo Molnar #endif 142f8cbd99bSIngo Molnar 143368a5fa1SHua Zhong #define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0) 144f8cbd99bSIngo Molnar 1451da177e4SLinus Torvalds #define abs(x) ({ \ 1461da177e4SLinus Torvalds int __x = (x); \ 1471da177e4SLinus Torvalds (__x < 0) ? -__x : __x; \ 1481da177e4SLinus Torvalds }) 1491da177e4SLinus Torvalds 1503ee1afa3SNick Piggin #ifdef CONFIG_PROVE_LOCKING 1513ee1afa3SNick Piggin void might_fault(void); 1523ee1afa3SNick Piggin #else 1533ee1afa3SNick Piggin static inline void might_fault(void) 1543ee1afa3SNick Piggin { 1553ee1afa3SNick Piggin might_sleep(); 1563ee1afa3SNick Piggin } 1573ee1afa3SNick Piggin #endif 1583ee1afa3SNick Piggin 159e041c683SAlan Stern extern struct atomic_notifier_head panic_notifier_list; 1601da177e4SLinus Torvalds extern long (*panic_blink)(long time); 1611da177e4SLinus Torvalds NORET_TYPE void panic(const char * fmt, ...) 162a586df06SAndi Kleen __attribute__ ((NORET_AND format (printf, 1, 2))) __cold; 163dd287796SAndrew Morton extern void oops_enter(void); 164dd287796SAndrew Morton extern void oops_exit(void); 165dd287796SAndrew Morton extern int oops_may_print(void); 166ec701584SHarvey Harrison NORET_TYPE void do_exit(long error_code) 1671da177e4SLinus Torvalds ATTRIB_NORET; 1681da177e4SLinus Torvalds NORET_TYPE void complete_and_exit(struct completion *, long) 1691da177e4SLinus Torvalds ATTRIB_NORET; 1701da177e4SLinus Torvalds extern unsigned long simple_strtoul(const char *,char **,unsigned int); 1711da177e4SLinus Torvalds extern long simple_strtol(const char *,char **,unsigned int); 1721da177e4SLinus Torvalds extern unsigned long long simple_strtoull(const char *,char **,unsigned int); 1731da177e4SLinus Torvalds extern long long simple_strtoll(const char *,char **,unsigned int); 17406b2a76dSYi Yang extern int strict_strtoul(const char *, unsigned int, unsigned long *); 17506b2a76dSYi Yang extern int strict_strtol(const char *, unsigned int, long *); 17606b2a76dSYi Yang extern int strict_strtoull(const char *, unsigned int, unsigned long long *); 17706b2a76dSYi Yang extern int strict_strtoll(const char *, unsigned int, long long *); 1781da177e4SLinus Torvalds extern int sprintf(char * buf, const char * fmt, ...) 1791da177e4SLinus Torvalds __attribute__ ((format (printf, 2, 3))); 1801da177e4SLinus Torvalds extern int vsprintf(char *buf, const char *, va_list) 1811da177e4SLinus Torvalds __attribute__ ((format (printf, 2, 0))); 1821da177e4SLinus Torvalds extern int snprintf(char * buf, size_t size, const char * fmt, ...) 1831da177e4SLinus Torvalds __attribute__ ((format (printf, 3, 4))); 1841da177e4SLinus Torvalds extern int vsnprintf(char *buf, size_t size, const char *fmt, va_list args) 1851da177e4SLinus Torvalds __attribute__ ((format (printf, 3, 0))); 1861da177e4SLinus Torvalds extern int scnprintf(char * buf, size_t size, const char * fmt, ...) 1871da177e4SLinus Torvalds __attribute__ ((format (printf, 3, 4))); 1881da177e4SLinus Torvalds extern int vscnprintf(char *buf, size_t size, const char *fmt, va_list args) 1891da177e4SLinus Torvalds __attribute__ ((format (printf, 3, 0))); 190e905914fSJeremy Fitzhardinge extern char *kasprintf(gfp_t gfp, const char *fmt, ...) 191e905914fSJeremy Fitzhardinge __attribute__ ((format (printf, 2, 3))); 19211443ec7SJeremy Fitzhardinge extern char *kvasprintf(gfp_t gfp, const char *fmt, va_list args); 1931da177e4SLinus Torvalds 1941da177e4SLinus Torvalds extern int sscanf(const char *, const char *, ...) 1951da177e4SLinus Torvalds __attribute__ ((format (scanf, 2, 3))); 1961da177e4SLinus Torvalds extern int vsscanf(const char *, const char *, va_list) 1971da177e4SLinus Torvalds __attribute__ ((format (scanf, 2, 0))); 1981da177e4SLinus Torvalds 1991da177e4SLinus Torvalds extern int get_option(char **str, int *pint); 2001da177e4SLinus Torvalds extern char *get_options(const char *str, int nints, int *ints); 201d974ae37SJeremy Fitzhardinge extern unsigned long long memparse(const char *ptr, char **retptr); 2021da177e4SLinus Torvalds 2035e376613STrent Piepho extern int core_kernel_text(unsigned long addr); 2041da177e4SLinus Torvalds extern int __kernel_text_address(unsigned long addr); 2051da177e4SLinus Torvalds extern int kernel_text_address(unsigned long addr); 206ab7476cfSArjan van de Ven extern int func_ptr_is_kernel_text(void *ptr); 207ab7476cfSArjan van de Ven 20804a2e6a5SEric W. Biederman struct pid; 20904a2e6a5SEric W. Biederman extern struct pid *session_of_pgrp(struct pid *pgrp); 2101da177e4SLinus Torvalds 211a0ad05c7SThomas Renninger /* 212a0ad05c7SThomas Renninger * FW_BUG 213a0ad05c7SThomas Renninger * Add this to a message where you are sure the firmware is buggy or behaves 214a0ad05c7SThomas Renninger * really stupid or out of spec. Be aware that the responsible BIOS developer 215a0ad05c7SThomas Renninger * should be able to fix this issue or at least get a concrete idea of the 216a0ad05c7SThomas Renninger * problem by reading your message without the need of looking at the kernel 217a0ad05c7SThomas Renninger * code. 218a0ad05c7SThomas Renninger * 219a0ad05c7SThomas Renninger * Use it for definite and high priority BIOS bugs. 220a0ad05c7SThomas Renninger * 221a0ad05c7SThomas Renninger * FW_WARN 222a0ad05c7SThomas Renninger * Use it for not that clear (e.g. could the kernel messed up things already?) 223a0ad05c7SThomas Renninger * and medium priority BIOS bugs. 224a0ad05c7SThomas Renninger * 225a0ad05c7SThomas Renninger * FW_INFO 226a0ad05c7SThomas Renninger * Use this one if you want to tell the user or vendor about something 227a0ad05c7SThomas Renninger * suspicious, but generally harmless related to the firmware. 228a0ad05c7SThomas Renninger * 229a0ad05c7SThomas Renninger * Use it for information or very low priority BIOS bugs. 230a0ad05c7SThomas Renninger */ 231a0ad05c7SThomas Renninger #define FW_BUG "[Firmware Bug]: " 232a0ad05c7SThomas Renninger #define FW_WARN "[Firmware Warn]: " 233a0ad05c7SThomas Renninger #define FW_INFO "[Firmware Info]: " 234a0ad05c7SThomas Renninger 235d59745ceSMatt Mackall #ifdef CONFIG_PRINTK 2361da177e4SLinus Torvalds asmlinkage int vprintk(const char *fmt, va_list args) 2371da177e4SLinus Torvalds __attribute__ ((format (printf, 1, 0))); 2381da177e4SLinus Torvalds asmlinkage int printk(const char * fmt, ...) 239a586df06SAndi Kleen __attribute__ ((format (printf, 1, 2))) __cold; 2407ef3d2fdSJoe Perches 241717115e1SDave Young extern struct ratelimit_state printk_ratelimit_state; 2427ef3d2fdSJoe Perches extern int printk_ratelimit(void); 2437ef3d2fdSJoe Perches extern bool printk_timed_ratelimit(unsigned long *caller_jiffies, 2447ef3d2fdSJoe Perches unsigned int interval_msec); 245f036be96SIngo Molnar 246f036be96SIngo Molnar /* 247f036be96SIngo Molnar * Print a one-time message (analogous to WARN_ONCE() et al): 248f036be96SIngo Molnar */ 249f036be96SIngo Molnar #define printk_once(x...) ({ \ 250f036be96SIngo Molnar static int __print_once = 1; \ 251f036be96SIngo Molnar \ 252f036be96SIngo Molnar if (__print_once) { \ 253f036be96SIngo Molnar __print_once = 0; \ 254f036be96SIngo Molnar printk(x); \ 255f036be96SIngo Molnar } \ 256f036be96SIngo Molnar }) 257f036be96SIngo Molnar 258d59745ceSMatt Mackall #else 259d59745ceSMatt Mackall static inline int vprintk(const char *s, va_list args) 260d59745ceSMatt Mackall __attribute__ ((format (printf, 1, 0))); 261d59745ceSMatt Mackall static inline int vprintk(const char *s, va_list args) { return 0; } 262d59745ceSMatt Mackall static inline int printk(const char *s, ...) 263d59745ceSMatt Mackall __attribute__ ((format (printf, 1, 2))); 264a586df06SAndi Kleen static inline int __cold printk(const char *s, ...) { return 0; } 2657ef3d2fdSJoe Perches static inline int printk_ratelimit(void) { return 0; } 2667ef3d2fdSJoe Perches static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, \ 2677ef3d2fdSJoe Perches unsigned int interval_msec) \ 2687ef3d2fdSJoe Perches { return false; } 269f036be96SIngo Molnar 270f036be96SIngo Molnar /* No effect, but we still get type checking even in the !PRINTK case: */ 271f036be96SIngo Molnar #define printk_once(x...) printk(x) 272f036be96SIngo Molnar 273d59745ceSMatt Mackall #endif 2741da177e4SLinus Torvalds 275ced9cd40SIngo Molnar extern int printk_needs_cpu(int cpu); 276ced9cd40SIngo Molnar extern void printk_tick(void); 277ced9cd40SIngo Molnar 278e17ba73bSJiri Slaby extern void asmlinkage __attribute__((format(printf, 1, 2))) 279076f9776SIngo Molnar early_printk(const char *fmt, ...); 280076f9776SIngo Molnar 2811da177e4SLinus Torvalds unsigned long int_sqrt(unsigned long); 2821da177e4SLinus Torvalds 2831da177e4SLinus Torvalds static inline void console_silent(void) 2841da177e4SLinus Torvalds { 2851da177e4SLinus Torvalds console_loglevel = 0; 2861da177e4SLinus Torvalds } 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds static inline void console_verbose(void) 2891da177e4SLinus Torvalds { 2901da177e4SLinus Torvalds if (console_loglevel) 2911da177e4SLinus Torvalds console_loglevel = 15; 2921da177e4SLinus Torvalds } 2931da177e4SLinus Torvalds 2941da177e4SLinus Torvalds extern void bust_spinlocks(int yes); 295e3e8a75dSKirill Korotaev extern void wake_up_klogd(void); 2961da177e4SLinus Torvalds extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */ 297aa727107SAdrian Bunk extern int panic_timeout; 2981da177e4SLinus Torvalds extern int panic_on_oops; 2998da5addaSDon Zickus extern int panic_on_unrecovered_nmi; 3001da177e4SLinus Torvalds extern const char *print_tainted(void); 30125ddbb18SAndi Kleen extern void add_taint(unsigned flag); 30225ddbb18SAndi Kleen extern int test_taint(unsigned flag); 30325ddbb18SAndi Kleen extern unsigned long get_taint(void); 304b920de1bSDavid Howells extern int root_mountflags; 3051da177e4SLinus Torvalds 3061da177e4SLinus Torvalds /* Values used for system_state */ 3071da177e4SLinus Torvalds extern enum system_states { 3081da177e4SLinus Torvalds SYSTEM_BOOTING, 3091da177e4SLinus Torvalds SYSTEM_RUNNING, 3101da177e4SLinus Torvalds SYSTEM_HALT, 3111da177e4SLinus Torvalds SYSTEM_POWER_OFF, 3121da177e4SLinus Torvalds SYSTEM_RESTART, 313729b4d4cSAlexey Starikovskiy SYSTEM_SUSPEND_DISK, 3141da177e4SLinus Torvalds } system_state; 3151da177e4SLinus Torvalds 31625ddbb18SAndi Kleen #define TAINT_PROPRIETARY_MODULE 0 31725ddbb18SAndi Kleen #define TAINT_FORCED_MODULE 1 31825ddbb18SAndi Kleen #define TAINT_UNSAFE_SMP 2 31925ddbb18SAndi Kleen #define TAINT_FORCED_RMMOD 3 32025ddbb18SAndi Kleen #define TAINT_MACHINE_CHECK 4 32125ddbb18SAndi Kleen #define TAINT_BAD_PAGE 5 32225ddbb18SAndi Kleen #define TAINT_USER 6 32325ddbb18SAndi Kleen #define TAINT_DIE 7 32425ddbb18SAndi Kleen #define TAINT_OVERRIDDEN_ACPI_TABLE 8 32525ddbb18SAndi Kleen #define TAINT_WARN 9 32626e9a397SLinus Torvalds #define TAINT_CRAP 10 3271da177e4SLinus Torvalds 328a586df06SAndi Kleen extern void dump_stack(void) __cold; 3291da177e4SLinus Torvalds 33099eaf3c4SRandy Dunlap enum { 33199eaf3c4SRandy Dunlap DUMP_PREFIX_NONE, 33299eaf3c4SRandy Dunlap DUMP_PREFIX_ADDRESS, 33399eaf3c4SRandy Dunlap DUMP_PREFIX_OFFSET 33499eaf3c4SRandy Dunlap }; 335c7909234SRandy Dunlap extern void hex_dump_to_buffer(const void *buf, size_t len, 336c7909234SRandy Dunlap int rowsize, int groupsize, 337c7909234SRandy Dunlap char *linebuf, size_t linebuflen, bool ascii); 338c7909234SRandy Dunlap extern void print_hex_dump(const char *level, const char *prefix_str, 339c7909234SRandy Dunlap int prefix_type, int rowsize, int groupsize, 3406a0ed91eSArtem Bityutskiy const void *buf, size_t len, bool ascii); 341c7909234SRandy Dunlap extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type, 342eb9a9a56SAlan Stern const void *buf, size_t len); 3433fc95772SHarvey Harrison 3443fc95772SHarvey Harrison extern const char hex_asc[]; 3453fc95772SHarvey Harrison #define hex_asc_lo(x) hex_asc[((x) & 0x0f)] 3463fc95772SHarvey Harrison #define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4] 3473fc95772SHarvey Harrison 3483fc95772SHarvey Harrison static inline char *pack_hex_byte(char *buf, u8 byte) 3493fc95772SHarvey Harrison { 3503fc95772SHarvey Harrison *buf++ = hex_asc_hi(byte); 3513fc95772SHarvey Harrison *buf++ = hex_asc_lo(byte); 3523fc95772SHarvey Harrison return buf; 3533fc95772SHarvey Harrison } 35499eaf3c4SRandy Dunlap 355d091c2f5SMartin Schwidefsky #ifndef pr_fmt 356d091c2f5SMartin Schwidefsky #define pr_fmt(fmt) fmt 357d091c2f5SMartin Schwidefsky #endif 358d091c2f5SMartin Schwidefsky 359d091c2f5SMartin Schwidefsky #define pr_emerg(fmt, ...) \ 360d091c2f5SMartin Schwidefsky printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) 361d091c2f5SMartin Schwidefsky #define pr_alert(fmt, ...) \ 362d091c2f5SMartin Schwidefsky printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__) 363d091c2f5SMartin Schwidefsky #define pr_crit(fmt, ...) \ 364d091c2f5SMartin Schwidefsky printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__) 365d091c2f5SMartin Schwidefsky #define pr_err(fmt, ...) \ 366d091c2f5SMartin Schwidefsky printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) 367d091c2f5SMartin Schwidefsky #define pr_warning(fmt, ...) \ 368d091c2f5SMartin Schwidefsky printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) 369d091c2f5SMartin Schwidefsky #define pr_notice(fmt, ...) \ 370d091c2f5SMartin Schwidefsky printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__) 371d091c2f5SMartin Schwidefsky #define pr_info(fmt, ...) \ 372d091c2f5SMartin Schwidefsky printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) 3731f7c8234SEmil Medve 3741cc6daf2SPavel Machek /* If you are writing a driver, please use dev_dbg instead */ 375d0d85ff9SCornelia Huck #if defined(DEBUG) 376d0d85ff9SCornelia Huck #define pr_debug(fmt, ...) \ 377d0d85ff9SCornelia Huck printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) 378d0d85ff9SCornelia Huck #elif defined(CONFIG_DYNAMIC_PRINTK_DEBUG) 379346e15beSJason Baron #define pr_debug(fmt, ...) do { \ 380d091c2f5SMartin Schwidefsky dynamic_pr_debug(pr_fmt(fmt), ##__VA_ARGS__); \ 381346e15beSJason Baron } while (0) 3821da177e4SLinus Torvalds #else 383d091c2f5SMartin Schwidefsky #define pr_debug(fmt, ...) \ 384d091c2f5SMartin Schwidefsky ({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; }) 3851da177e4SLinus Torvalds #endif 3861da177e4SLinus Torvalds 3871da177e4SLinus Torvalds /* 388526211bcSIngo Molnar * General tracing related utility functions - trace_printk(), 3892002c258SSteven Rostedt * tracing_on/tracing_off and tracing_start()/tracing_stop 3902002c258SSteven Rostedt * 3912002c258SSteven Rostedt * Use tracing_on/tracing_off when you want to quickly turn on or off 3922002c258SSteven Rostedt * tracing. It simply enables or disables the recording of the trace events. 3932002c258SSteven Rostedt * This also corresponds to the user space debugfs/tracing/tracing_on 3942002c258SSteven Rostedt * file, which gives a means for the kernel and userspace to interact. 3952002c258SSteven Rostedt * Place a tracing_off() in the kernel where you want tracing to end. 3962002c258SSteven Rostedt * From user space, examine the trace, and then echo 1 > tracing_on 3972002c258SSteven Rostedt * to continue tracing. 3982002c258SSteven Rostedt * 3992002c258SSteven Rostedt * tracing_stop/tracing_start has slightly more overhead. It is used 4002002c258SSteven Rostedt * by things like suspend to ram where disabling the recording of the 4012002c258SSteven Rostedt * trace is not enough, but tracing must actually stop because things 4022002c258SSteven Rostedt * like calling smp_processor_id() may crash the system. 4032002c258SSteven Rostedt * 4042002c258SSteven Rostedt * Most likely, you want to use tracing_on/tracing_off. 405526211bcSIngo Molnar */ 4062002c258SSteven Rostedt #ifdef CONFIG_RING_BUFFER 4072002c258SSteven Rostedt void tracing_on(void); 4082002c258SSteven Rostedt void tracing_off(void); 4092002c258SSteven Rostedt /* trace_off_permanent stops recording with no way to bring it back */ 4102002c258SSteven Rostedt void tracing_off_permanent(void); 4112002c258SSteven Rostedt int tracing_is_on(void); 4122002c258SSteven Rostedt #else 4132002c258SSteven Rostedt static inline void tracing_on(void) { } 4142002c258SSteven Rostedt static inline void tracing_off(void) { } 4152002c258SSteven Rostedt static inline void tracing_off_permanent(void) { } 4162002c258SSteven Rostedt static inline int tracing_is_on(void) { return 0; } 4172002c258SSteven Rostedt #endif 418526211bcSIngo Molnar #ifdef CONFIG_TRACING 419526211bcSIngo Molnar extern void tracing_start(void); 420526211bcSIngo Molnar extern void tracing_stop(void); 421526211bcSIngo Molnar extern void ftrace_off_permanent(void); 422526211bcSIngo Molnar 423526211bcSIngo Molnar extern void 424526211bcSIngo Molnar ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3); 425526211bcSIngo Molnar 426769b0441SFrederic Weisbecker static inline void __attribute__ ((format (printf, 1, 2))) 427769b0441SFrederic Weisbecker ____trace_printk_check_format(const char *fmt, ...) 428769b0441SFrederic Weisbecker { 429769b0441SFrederic Weisbecker } 430769b0441SFrederic Weisbecker #define __trace_printk_check_format(fmt, args...) \ 431769b0441SFrederic Weisbecker do { \ 432769b0441SFrederic Weisbecker if (0) \ 433769b0441SFrederic Weisbecker ____trace_printk_check_format(fmt, ##args); \ 434769b0441SFrederic Weisbecker } while (0) 435769b0441SFrederic Weisbecker 436526211bcSIngo Molnar /** 437526211bcSIngo Molnar * trace_printk - printf formatting in the ftrace buffer 438526211bcSIngo Molnar * @fmt: the printf format for printing 439526211bcSIngo Molnar * 440526211bcSIngo Molnar * Note: __trace_printk is an internal function for trace_printk and 441526211bcSIngo Molnar * the @ip is passed in via the trace_printk macro. 442526211bcSIngo Molnar * 443526211bcSIngo Molnar * This function allows a kernel developer to debug fast path sections 444526211bcSIngo Molnar * that printk is not appropriate for. By scattering in various 445526211bcSIngo Molnar * printk like tracing in the code, a developer can quickly see 446526211bcSIngo Molnar * where problems are occurring. 447526211bcSIngo Molnar * 448526211bcSIngo Molnar * This is intended as a debugging tool for the developer only. 449526211bcSIngo Molnar * Please refrain from leaving trace_printks scattered around in 450526211bcSIngo Molnar * your code. 451526211bcSIngo Molnar */ 452769b0441SFrederic Weisbecker 453769b0441SFrederic Weisbecker #define trace_printk(fmt, args...) \ 454769b0441SFrederic Weisbecker do { \ 455769b0441SFrederic Weisbecker __trace_printk_check_format(fmt, ##args); \ 456*48ead020SFrederic Weisbecker if (__builtin_constant_p(fmt)) { \ 457*48ead020SFrederic Weisbecker static const char *trace_printk_fmt \ 458*48ead020SFrederic Weisbecker __attribute__((section("__trace_printk_fmt"))) = \ 459*48ead020SFrederic Weisbecker __builtin_constant_p(fmt) ? fmt : NULL; \ 460*48ead020SFrederic Weisbecker \ 461*48ead020SFrederic Weisbecker __trace_bprintk(_THIS_IP_, trace_printk_fmt, ##args); \ 462*48ead020SFrederic Weisbecker } else \ 463*48ead020SFrederic Weisbecker __trace_printk(_THIS_IP_, fmt, ##args); \ 464769b0441SFrederic Weisbecker } while (0) 465769b0441SFrederic Weisbecker 466526211bcSIngo Molnar extern int 467*48ead020SFrederic Weisbecker __trace_bprintk(unsigned long ip, const char *fmt, ...) 468*48ead020SFrederic Weisbecker __attribute__ ((format (printf, 2, 3))); 469*48ead020SFrederic Weisbecker 470*48ead020SFrederic Weisbecker extern int 471526211bcSIngo Molnar __trace_printk(unsigned long ip, const char *fmt, ...) 472526211bcSIngo Molnar __attribute__ ((format (printf, 2, 3))); 473769b0441SFrederic Weisbecker 474*48ead020SFrederic Weisbecker /* 475*48ead020SFrederic Weisbecker * The double __builtin_constant_p is because gcc will give us an error 476*48ead020SFrederic Weisbecker * if we try to allocate the static variable to fmt if it is not a 477*48ead020SFrederic Weisbecker * constant. Even with the outer if statement. 478*48ead020SFrederic Weisbecker */ 479769b0441SFrederic Weisbecker #define ftrace_vprintk(fmt, vargs) \ 480769b0441SFrederic Weisbecker do { \ 481*48ead020SFrederic Weisbecker if (__builtin_constant_p(fmt)) { \ 482769b0441SFrederic Weisbecker static const char *trace_printk_fmt \ 483*48ead020SFrederic Weisbecker __attribute__((section("__trace_printk_fmt"))) = \ 484*48ead020SFrederic Weisbecker __builtin_constant_p(fmt) ? fmt : NULL; \ 4857bffc23eSIngo Molnar \ 486*48ead020SFrederic Weisbecker __ftrace_vbprintk(_THIS_IP_, trace_printk_fmt, vargs); \ 487*48ead020SFrederic Weisbecker } else \ 488*48ead020SFrederic Weisbecker __ftrace_vprintk(_THIS_IP_, fmt, vargs); \ 489769b0441SFrederic Weisbecker } while (0) 490769b0441SFrederic Weisbecker 491526211bcSIngo Molnar extern int 492*48ead020SFrederic Weisbecker __ftrace_vbprintk(unsigned long ip, const char *fmt, va_list ap); 493*48ead020SFrederic Weisbecker 494*48ead020SFrederic Weisbecker extern int 495526211bcSIngo Molnar __ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap); 496769b0441SFrederic Weisbecker 497526211bcSIngo Molnar extern void ftrace_dump(void); 498526211bcSIngo Molnar #else 499526211bcSIngo Molnar static inline void 500526211bcSIngo Molnar ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { } 501526211bcSIngo Molnar static inline int 502526211bcSIngo Molnar trace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 2))); 503526211bcSIngo Molnar 504526211bcSIngo Molnar static inline void tracing_start(void) { } 505526211bcSIngo Molnar static inline void tracing_stop(void) { } 506526211bcSIngo Molnar static inline void ftrace_off_permanent(void) { } 507526211bcSIngo Molnar static inline int 508526211bcSIngo Molnar trace_printk(const char *fmt, ...) 509526211bcSIngo Molnar { 510526211bcSIngo Molnar return 0; 511526211bcSIngo Molnar } 512526211bcSIngo Molnar static inline int 513526211bcSIngo Molnar ftrace_vprintk(const char *fmt, va_list ap) 514526211bcSIngo Molnar { 515526211bcSIngo Molnar return 0; 516526211bcSIngo Molnar } 517526211bcSIngo Molnar static inline void ftrace_dump(void) { } 518769b0441SFrederic Weisbecker #endif /* CONFIG_TRACING */ 519526211bcSIngo Molnar 520526211bcSIngo Molnar /* 5211da177e4SLinus Torvalds * Display an IP address in readable format. 5221da177e4SLinus Torvalds */ 5231da177e4SLinus Torvalds 5241da177e4SLinus Torvalds #define NIPQUAD(addr) \ 5251da177e4SLinus Torvalds ((unsigned char *)&addr)[0], \ 5261da177e4SLinus Torvalds ((unsigned char *)&addr)[1], \ 5271da177e4SLinus Torvalds ((unsigned char *)&addr)[2], \ 5281da177e4SLinus Torvalds ((unsigned char *)&addr)[3] 52946b86a2dSJoe Perches #define NIPQUAD_FMT "%u.%u.%u.%u" 5301da177e4SLinus Torvalds 5311da177e4SLinus Torvalds #if defined(__LITTLE_ENDIAN) 5321da177e4SLinus Torvalds #define HIPQUAD(addr) \ 5331da177e4SLinus Torvalds ((unsigned char *)&addr)[3], \ 5341da177e4SLinus Torvalds ((unsigned char *)&addr)[2], \ 5351da177e4SLinus Torvalds ((unsigned char *)&addr)[1], \ 5361da177e4SLinus Torvalds ((unsigned char *)&addr)[0] 5371da177e4SLinus Torvalds #elif defined(__BIG_ENDIAN) 5381da177e4SLinus Torvalds #define HIPQUAD NIPQUAD 5391da177e4SLinus Torvalds #else 5401da177e4SLinus Torvalds #error "Please fix asm/byteorder.h" 5411da177e4SLinus Torvalds #endif /* __LITTLE_ENDIAN */ 5421da177e4SLinus Torvalds 5431da177e4SLinus Torvalds /* 544bdf4bbaaSHarvey Harrison * min()/max()/clamp() macros that also do 5451da177e4SLinus Torvalds * strict type-checking.. See the 5461da177e4SLinus Torvalds * "unnecessary" pointer comparison. 5471da177e4SLinus Torvalds */ 5481da177e4SLinus Torvalds #define min(x, y) ({ \ 549bdf4bbaaSHarvey Harrison typeof(x) _min1 = (x); \ 550bdf4bbaaSHarvey Harrison typeof(y) _min2 = (y); \ 551bdf4bbaaSHarvey Harrison (void) (&_min1 == &_min2); \ 552bdf4bbaaSHarvey Harrison _min1 < _min2 ? _min1 : _min2; }) 5531da177e4SLinus Torvalds 5541da177e4SLinus Torvalds #define max(x, y) ({ \ 555bdf4bbaaSHarvey Harrison typeof(x) _max1 = (x); \ 556bdf4bbaaSHarvey Harrison typeof(y) _max2 = (y); \ 557bdf4bbaaSHarvey Harrison (void) (&_max1 == &_max2); \ 558bdf4bbaaSHarvey Harrison _max1 > _max2 ? _max1 : _max2; }) 559bdf4bbaaSHarvey Harrison 560bdf4bbaaSHarvey Harrison /** 561bdf4bbaaSHarvey Harrison * clamp - return a value clamped to a given range with strict typechecking 562bdf4bbaaSHarvey Harrison * @val: current value 563bdf4bbaaSHarvey Harrison * @min: minimum allowable value 564bdf4bbaaSHarvey Harrison * @max: maximum allowable value 565bdf4bbaaSHarvey Harrison * 566bdf4bbaaSHarvey Harrison * This macro does strict typechecking of min/max to make sure they are of the 567bdf4bbaaSHarvey Harrison * same type as val. See the unnecessary pointer comparisons. 568bdf4bbaaSHarvey Harrison */ 569bdf4bbaaSHarvey Harrison #define clamp(val, min, max) ({ \ 570bdf4bbaaSHarvey Harrison typeof(val) __val = (val); \ 571bdf4bbaaSHarvey Harrison typeof(min) __min = (min); \ 572bdf4bbaaSHarvey Harrison typeof(max) __max = (max); \ 573bdf4bbaaSHarvey Harrison (void) (&__val == &__min); \ 574bdf4bbaaSHarvey Harrison (void) (&__val == &__max); \ 575bdf4bbaaSHarvey Harrison __val = __val < __min ? __min: __val; \ 576bdf4bbaaSHarvey Harrison __val > __max ? __max: __val; }) 5771da177e4SLinus Torvalds 5781da177e4SLinus Torvalds /* 5791da177e4SLinus Torvalds * ..and if you can't take the strict 5801da177e4SLinus Torvalds * types, you can specify one yourself. 5811da177e4SLinus Torvalds * 582bdf4bbaaSHarvey Harrison * Or not use min/max/clamp at all, of course. 5831da177e4SLinus Torvalds */ 584bdf4bbaaSHarvey Harrison #define min_t(type, x, y) ({ \ 585bdf4bbaaSHarvey Harrison type __min1 = (x); \ 586bdf4bbaaSHarvey Harrison type __min2 = (y); \ 587bdf4bbaaSHarvey Harrison __min1 < __min2 ? __min1: __min2; }) 5881da177e4SLinus Torvalds 589bdf4bbaaSHarvey Harrison #define max_t(type, x, y) ({ \ 590bdf4bbaaSHarvey Harrison type __max1 = (x); \ 591bdf4bbaaSHarvey Harrison type __max2 = (y); \ 592bdf4bbaaSHarvey Harrison __max1 > __max2 ? __max1: __max2; }) 593bdf4bbaaSHarvey Harrison 594bdf4bbaaSHarvey Harrison /** 595bdf4bbaaSHarvey Harrison * clamp_t - return a value clamped to a given range using a given type 596bdf4bbaaSHarvey Harrison * @type: the type of variable to use 597bdf4bbaaSHarvey Harrison * @val: current value 598bdf4bbaaSHarvey Harrison * @min: minimum allowable value 599bdf4bbaaSHarvey Harrison * @max: maximum allowable value 600bdf4bbaaSHarvey Harrison * 601bdf4bbaaSHarvey Harrison * This macro does no typechecking and uses temporary variables of type 602bdf4bbaaSHarvey Harrison * 'type' to make all the comparisons. 603bdf4bbaaSHarvey Harrison */ 604bdf4bbaaSHarvey Harrison #define clamp_t(type, val, min, max) ({ \ 605bdf4bbaaSHarvey Harrison type __val = (val); \ 606bdf4bbaaSHarvey Harrison type __min = (min); \ 607bdf4bbaaSHarvey Harrison type __max = (max); \ 608bdf4bbaaSHarvey Harrison __val = __val < __min ? __min: __val; \ 609bdf4bbaaSHarvey Harrison __val > __max ? __max: __val; }) 610bdf4bbaaSHarvey Harrison 611bdf4bbaaSHarvey Harrison /** 612bdf4bbaaSHarvey Harrison * clamp_val - return a value clamped to a given range using val's type 613bdf4bbaaSHarvey Harrison * @val: current value 614bdf4bbaaSHarvey Harrison * @min: minimum allowable value 615bdf4bbaaSHarvey Harrison * @max: maximum allowable value 616bdf4bbaaSHarvey Harrison * 617bdf4bbaaSHarvey Harrison * This macro does no typechecking and uses temporary variables of whatever 618bdf4bbaaSHarvey Harrison * type the input argument 'val' is. This is useful when val is an unsigned 619bdf4bbaaSHarvey Harrison * type and min and max are literals that will otherwise be assigned a signed 620bdf4bbaaSHarvey Harrison * integer type. 621bdf4bbaaSHarvey Harrison */ 622bdf4bbaaSHarvey Harrison #define clamp_val(val, min, max) ({ \ 623bdf4bbaaSHarvey Harrison typeof(val) __val = (val); \ 624bdf4bbaaSHarvey Harrison typeof(val) __min = (min); \ 625bdf4bbaaSHarvey Harrison typeof(val) __max = (max); \ 626bdf4bbaaSHarvey Harrison __val = __val < __min ? __min: __val; \ 627bdf4bbaaSHarvey Harrison __val > __max ? __max: __val; }) 6281da177e4SLinus Torvalds 62991f68b73SWu Fengguang 63091f68b73SWu Fengguang /* 63191f68b73SWu Fengguang * swap - swap value of @a and @b 63291f68b73SWu Fengguang */ 633ac7b9004SPeter Zijlstra #define swap(a, b) \ 634ac7b9004SPeter Zijlstra do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0) 63591f68b73SWu Fengguang 6361da177e4SLinus Torvalds /** 6371da177e4SLinus Torvalds * container_of - cast a member of a structure out to the containing structure 6381da177e4SLinus Torvalds * @ptr: the pointer to the member. 6391da177e4SLinus Torvalds * @type: the type of the container struct this is embedded in. 6401da177e4SLinus Torvalds * @member: the name of the member within the struct. 6411da177e4SLinus Torvalds * 6421da177e4SLinus Torvalds */ 6431da177e4SLinus Torvalds #define container_of(ptr, type, member) ({ \ 6441da177e4SLinus Torvalds const typeof( ((type *)0)->member ) *__mptr = (ptr); \ 6451da177e4SLinus Torvalds (type *)( (char *)__mptr - offsetof(type,member) );}) 6461da177e4SLinus Torvalds 647d4d23addSKyle McMartin struct sysinfo; 648d4d23addSKyle McMartin extern int do_sysinfo(struct sysinfo *info); 649d4d23addSKyle McMartin 6501da177e4SLinus Torvalds #endif /* __KERNEL__ */ 6511da177e4SLinus Torvalds 6521da177e4SLinus Torvalds #define SI_LOAD_SHIFT 16 6531da177e4SLinus Torvalds struct sysinfo { 6541da177e4SLinus Torvalds long uptime; /* Seconds since boot */ 6551da177e4SLinus Torvalds unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ 6561da177e4SLinus Torvalds unsigned long totalram; /* Total usable main memory size */ 6571da177e4SLinus Torvalds unsigned long freeram; /* Available memory size */ 6581da177e4SLinus Torvalds unsigned long sharedram; /* Amount of shared memory */ 6591da177e4SLinus Torvalds unsigned long bufferram; /* Memory used by buffers */ 6601da177e4SLinus Torvalds unsigned long totalswap; /* Total swap space size */ 6611da177e4SLinus Torvalds unsigned long freeswap; /* swap space still available */ 6621da177e4SLinus Torvalds unsigned short procs; /* Number of current processes */ 6631da177e4SLinus Torvalds unsigned short pad; /* explicit padding for m68k */ 6641da177e4SLinus Torvalds unsigned long totalhigh; /* Total high memory size */ 6651da177e4SLinus Torvalds unsigned long freehigh; /* Available high memory size */ 6661da177e4SLinus Torvalds unsigned int mem_unit; /* Memory unit size in bytes */ 6671da177e4SLinus Torvalds char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ 6681da177e4SLinus Torvalds }; 6691da177e4SLinus Torvalds 670c0398ee6SNikita Danilov /* Force a compilation error if condition is true */ 671921717a2SAndi Kleen #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) 6721da177e4SLinus Torvalds 6734552d5dcSJan Beulich /* Force a compilation error if condition is true, but also produce a 6744552d5dcSJan Beulich result (of value 0 and type size_t), so the expression can be used 6754552d5dcSJan Beulich e.g. in a structure initializer (or where-ever else comma expressions 6764552d5dcSJan Beulich aren't permitted). */ 6774552d5dcSJan Beulich #define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1) 6784552d5dcSJan Beulich 6791da177e4SLinus Torvalds /* Trap pasters of __FUNCTION__ at compile-time */ 6801da177e4SLinus Torvalds #define __FUNCTION__ (__func__) 6811da177e4SLinus Torvalds 68208e0f6a9SChristoph Lameter /* This helps us to avoid #ifdef CONFIG_NUMA */ 68308e0f6a9SChristoph Lameter #ifdef CONFIG_NUMA 68408e0f6a9SChristoph Lameter #define NUMA_BUILD 1 68508e0f6a9SChristoph Lameter #else 68608e0f6a9SChristoph Lameter #define NUMA_BUILD 0 68708e0f6a9SChristoph Lameter #endif 68808e0f6a9SChristoph Lameter 68929e71abfSSteven Rostedt /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */ 69029e71abfSSteven Rostedt #ifdef CONFIG_FTRACE_MCOUNT_RECORD 69129e71abfSSteven Rostedt # define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD 69229e71abfSSteven Rostedt #endif 69329e71abfSSteven Rostedt 6941da177e4SLinus Torvalds #endif 695