1
2#ifndef _LINUX_KERNEL_H
3#define _LINUX_KERNEL_H
4
5
6#include <stdarg.h>
7#include <linux/limits.h>
8#include <linux/linkage.h>
9#include <linux/stddef.h>
10#include <linux/types.h>
11#include <linux/compiler.h>
12#include <linux/bitops.h>
13#include <linux/log2.h>
14#include <linux/typecheck.h>
15#include <linux/printk.h>
16#include <linux/build_bug.h>
17#include <asm/byteorder.h>
18#include <asm/div64.h>
19#include <uapi/linux/kernel.h>
20#include <asm/div64.h>
21
22#define STACK_MAGIC 0xdeadbeef
23
24
25
26
27
28
29
30#define REPEAT_BYTE(x) ((~0ul / 0xff) * (x))
31
32
33#define ALIGN(x, a) __ALIGN_KERNEL((x), (a))
34#define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a))
35#define __ALIGN_MASK(x, mask) __ALIGN_KERNEL_MASK((x), (mask))
36#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a)))
37#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
38
39
40#define READ 0
41#define WRITE 1
42
43
44
45
46
47#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
48
49#define u64_to_user_ptr(x) ( \
50{ \
51 typecheck(u64, (x)); \
52 (void __user *)(uintptr_t)(x); \
53} \
54)
55
56
57
58
59
60
61
62#define __round_mask(x, y) ((__typeof__(x))((y)-1))
63
64
65
66
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68
69
70
71#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
72
73
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77
78
79
80#define round_down(x, y) ((x) & ~__round_mask(x, y))
81
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86
87
88
89#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
90
91#define typeof_member(T, m) typeof(((T*)0)->m)
92
93#define DIV_ROUND_UP __KERNEL_DIV_ROUND_UP
94
95#define DIV_ROUND_DOWN_ULL(ll, d) \
96 ({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
97
98#define DIV_ROUND_UP_ULL(ll, d) \
99 DIV_ROUND_DOWN_ULL((unsigned long long)(ll) + (d) - 1, (d))
100
101#if BITS_PER_LONG == 32
102# define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP_ULL(ll, d)
103#else
104# define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP(ll,d)
105#endif
106
107
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111
112
113
114
115#define roundup(x, y) ( \
116{ \
117 typeof(y) __y = y; \
118 (((x) + (__y - 1)) / __y) * __y; \
119} \
120)
121
122
123
124
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126
127
128
129#define rounddown(x, y) ( \
130{ \
131 typeof(x) __x = (x); \
132 __x - (__x % (y)); \
133} \
134)
135
136
137
138
139
140
141
142#define DIV_ROUND_CLOSEST(x, divisor)( \
143{ \
144 typeof(x) __x = x; \
145 typeof(divisor) __d = divisor; \
146 (((typeof(x))-1) > 0 || \
147 ((typeof(divisor))-1) > 0 || \
148 (((__x) > 0) == ((__d) > 0))) ? \
149 (((__x) + ((__d) / 2)) / (__d)) : \
150 (((__x) - ((__d) / 2)) / (__d)); \
151} \
152)
153
154
155
156
157#define DIV_ROUND_CLOSEST_ULL(x, divisor)( \
158{ \
159 typeof(divisor) __d = divisor; \
160 unsigned long long _tmp = (x) + (__d) / 2; \
161 do_div(_tmp, __d); \
162 _tmp; \
163} \
164)
165
166
167
168
169
170#define mult_frac(x, numer, denom)( \
171{ \
172 typeof(x) quot = (x) / (denom); \
173 typeof(x) rem = (x) % (denom); \
174 (quot * (numer)) + ((rem * (numer)) / (denom)); \
175} \
176)
177
178
179#define _RET_IP_ (unsigned long)__builtin_return_address(0)
180#define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; })
181
182#define sector_div(a, b) do_div(a, b)
183
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190
191
192#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
193
194
195
196
197
198#define lower_32_bits(n) ((u32)(n))
199
200struct completion;
201struct pt_regs;
202struct user;
203
204#ifdef CONFIG_PREEMPT_VOLUNTARY
205extern int _cond_resched(void);
206# define might_resched() _cond_resched()
207#else
208# define might_resched() do { } while (0)
209#endif
210
211#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
212extern void ___might_sleep(const char *file, int line, int preempt_offset);
213extern void __might_sleep(const char *file, int line, int preempt_offset);
214extern void __cant_sleep(const char *file, int line, int preempt_offset);
215
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227
228# define might_sleep() \
229 do { __might_sleep(__FILE__, __LINE__, 0); might_resched(); } while (0)
230
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232
233
234
235# define cant_sleep() \
236 do { __cant_sleep(__FILE__, __LINE__, 0); } while (0)
237# define sched_annotate_sleep() (current->task_state_change = 0)
238
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246
247
248# define non_block_start() (current->non_block_count++)
249
250
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252
253
254# define non_block_end() WARN_ON(current->non_block_count-- == 0)
255#else
256 static inline void ___might_sleep(const char *file, int line,
257 int preempt_offset) { }
258 static inline void __might_sleep(const char *file, int line,
259 int preempt_offset) { }
260# define might_sleep() do { might_resched(); } while (0)
261# define cant_sleep() do { } while (0)
262# define sched_annotate_sleep() do { } while (0)
263# define non_block_start() do { } while (0)
264# define non_block_end() do { } while (0)
265#endif
266
267#define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0)
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276
277#define abs(x) __abs_choose_expr(x, long long, \
278 __abs_choose_expr(x, long, \
279 __abs_choose_expr(x, int, \
280 __abs_choose_expr(x, short, \
281 __abs_choose_expr(x, char, \
282 __builtin_choose_expr( \
283 __builtin_types_compatible_p(typeof(x), char), \
284 (char)({ signed char __x = (x); __x<0?-__x:__x; }), \
285 ((void)0)))))))
286
287#define __abs_choose_expr(x, type, other) __builtin_choose_expr( \
288 __builtin_types_compatible_p(typeof(x), signed type) || \
289 __builtin_types_compatible_p(typeof(x), unsigned type), \
290 ({ signed type __x = (x); __x < 0 ? -__x : __x; }), other)
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306static inline u32 reciprocal_scale(u32 val, u32 ep_ro)
307{
308 return (u32)(((u64) val * ep_ro) >> 32);
309}
310
311#if defined(CONFIG_MMU) && \
312 (defined(CONFIG_PROVE_LOCKING) || defined(CONFIG_DEBUG_ATOMIC_SLEEP))
313#define might_fault() __might_fault(__FILE__, __LINE__)
314void __might_fault(const char *file, int line);
315#else
316static inline void might_fault(void) { }
317#endif
318
319extern struct atomic_notifier_head panic_notifier_list;
320extern long (*panic_blink)(int state);
321__printf(1, 2)
322void panic(const char *fmt, ...) __noreturn __cold;
323void nmi_panic(struct pt_regs *regs, const char *msg);
324extern void oops_enter(void);
325extern void oops_exit(void);
326void print_oops_end_marker(void);
327extern int oops_may_print(void);
328void do_exit(long error_code) __noreturn;
329void complete_and_exit(struct completion *, long) __noreturn;
330
331#ifdef CONFIG_ARCH_HAS_REFCOUNT
332void refcount_error_report(struct pt_regs *regs, const char *err);
333#else
334static inline void refcount_error_report(struct pt_regs *regs, const char *err)
335{ }
336#endif
337
338
339int __must_check _kstrtoul(const char *s, unsigned int base, unsigned long *res);
340int __must_check _kstrtol(const char *s, unsigned int base, long *res);
341
342int __must_check kstrtoull(const char *s, unsigned int base, unsigned long long *res);
343int __must_check kstrtoll(const char *s, unsigned int base, long long *res);
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361static inline int __must_check kstrtoul(const char *s, unsigned int base, unsigned long *res)
362{
363
364
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366
367 if (sizeof(unsigned long) == sizeof(unsigned long long) &&
368 __alignof__(unsigned long) == __alignof__(unsigned long long))
369 return kstrtoull(s, base, (unsigned long long *)res);
370 else
371 return _kstrtoul(s, base, res);
372}
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389
390static inline int __must_check kstrtol(const char *s, unsigned int base, long *res)
391{
392
393
394
395
396 if (sizeof(long) == sizeof(long long) &&
397 __alignof__(long) == __alignof__(long long))
398 return kstrtoll(s, base, (long long *)res);
399 else
400 return _kstrtol(s, base, res);
401}
402
403int __must_check kstrtouint(const char *s, unsigned int base, unsigned int *res);
404int __must_check kstrtoint(const char *s, unsigned int base, int *res);
405
406static inline int __must_check kstrtou64(const char *s, unsigned int base, u64 *res)
407{
408 return kstrtoull(s, base, res);
409}
410
411static inline int __must_check kstrtos64(const char *s, unsigned int base, s64 *res)
412{
413 return kstrtoll(s, base, res);
414}
415
416static inline int __must_check kstrtou32(const char *s, unsigned int base, u32 *res)
417{
418 return kstrtouint(s, base, res);
419}
420
421static inline int __must_check kstrtos32(const char *s, unsigned int base, s32 *res)
422{
423 return kstrtoint(s, base, res);
424}
425
426int __must_check kstrtou16(const char *s, unsigned int base, u16 *res);
427int __must_check kstrtos16(const char *s, unsigned int base, s16 *res);
428int __must_check kstrtou8(const char *s, unsigned int base, u8 *res);
429int __must_check kstrtos8(const char *s, unsigned int base, s8 *res);
430int __must_check kstrtobool(const char *s, bool *res);
431
432int __must_check kstrtoull_from_user(const char __user *s, size_t count, unsigned int base, unsigned long long *res);
433int __must_check kstrtoll_from_user(const char __user *s, size_t count, unsigned int base, long long *res);
434int __must_check kstrtoul_from_user(const char __user *s, size_t count, unsigned int base, unsigned long *res);
435int __must_check kstrtol_from_user(const char __user *s, size_t count, unsigned int base, long *res);
436int __must_check kstrtouint_from_user(const char __user *s, size_t count, unsigned int base, unsigned int *res);
437int __must_check kstrtoint_from_user(const char __user *s, size_t count, unsigned int base, int *res);
438int __must_check kstrtou16_from_user(const char __user *s, size_t count, unsigned int base, u16 *res);
439int __must_check kstrtos16_from_user(const char __user *s, size_t count, unsigned int base, s16 *res);
440int __must_check kstrtou8_from_user(const char __user *s, size_t count, unsigned int base, u8 *res);
441int __must_check kstrtos8_from_user(const char __user *s, size_t count, unsigned int base, s8 *res);
442int __must_check kstrtobool_from_user(const char __user *s, size_t count, bool *res);
443
444static inline int __must_check kstrtou64_from_user(const char __user *s, size_t count, unsigned int base, u64 *res)
445{
446 return kstrtoull_from_user(s, count, base, res);
447}
448
449static inline int __must_check kstrtos64_from_user(const char __user *s, size_t count, unsigned int base, s64 *res)
450{
451 return kstrtoll_from_user(s, count, base, res);
452}
453
454static inline int __must_check kstrtou32_from_user(const char __user *s, size_t count, unsigned int base, u32 *res)
455{
456 return kstrtouint_from_user(s, count, base, res);
457}
458
459static inline int __must_check kstrtos32_from_user(const char __user *s, size_t count, unsigned int base, s32 *res)
460{
461 return kstrtoint_from_user(s, count, base, res);
462}
463
464
465
466extern unsigned long simple_strtoul(const char *,char **,unsigned int);
467extern long simple_strtol(const char *,char **,unsigned int);
468extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
469extern long long simple_strtoll(const char *,char **,unsigned int);
470
471extern int num_to_str(char *buf, int size,
472 unsigned long long num, unsigned int width);
473
474
475
476extern __printf(2, 3) int sprintf(char *buf, const char * fmt, ...);
477extern __printf(2, 0) int vsprintf(char *buf, const char *, va_list);
478extern __printf(3, 4)
479int snprintf(char *buf, size_t size, const char *fmt, ...);
480extern __printf(3, 0)
481int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
482extern __printf(3, 4)
483int scnprintf(char *buf, size_t size, const char *fmt, ...);
484extern __printf(3, 0)
485int vscnprintf(char *buf, size_t size, const char *fmt, va_list args);
486extern __printf(2, 3) __malloc
487char *kasprintf(gfp_t gfp, const char *fmt, ...);
488extern __printf(2, 0) __malloc
489char *kvasprintf(gfp_t gfp, const char *fmt, va_list args);
490extern __printf(2, 0)
491const char *kvasprintf_const(gfp_t gfp, const char *fmt, va_list args);
492
493extern __scanf(2, 3)
494int sscanf(const char *, const char *, ...);
495extern __scanf(2, 0)
496int vsscanf(const char *, const char *, va_list);
497
498extern int get_option(char **str, int *pint);
499extern char *get_options(const char *str, int nints, int *ints);
500extern unsigned long long memparse(const char *ptr, char **retptr);
501extern bool parse_option_str(const char *str, const char *option);
502extern char *next_arg(char *args, char **param, char **val);
503
504extern int core_kernel_text(unsigned long addr);
505extern int init_kernel_text(unsigned long addr);
506extern int core_kernel_data(unsigned long addr);
507extern int __kernel_text_address(unsigned long addr);
508extern int kernel_text_address(unsigned long addr);
509extern int func_ptr_is_kernel_text(void *ptr);
510
511u64 int_pow(u64 base, unsigned int exp);
512unsigned long int_sqrt(unsigned long);
513
514#if BITS_PER_LONG < 64
515u32 int_sqrt64(u64 x);
516#else
517static inline u32 int_sqrt64(u64 x)
518{
519 return (u32)int_sqrt(x);
520}
521#endif
522
523extern void bust_spinlocks(int yes);
524extern int oops_in_progress;
525extern int panic_timeout;
526extern unsigned long panic_print;
527extern int panic_on_oops;
528extern int panic_on_unrecovered_nmi;
529extern int panic_on_io_nmi;
530extern int panic_on_warn;
531extern int sysctl_panic_on_rcu_stall;
532extern int sysctl_panic_on_stackoverflow;
533
534extern bool crash_kexec_post_notifiers;
535
536
537
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540
541extern atomic_t panic_cpu;
542#define PANIC_CPU_INVALID -1
543
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547
548static inline void set_arch_panic_timeout(int timeout, int arch_default_timeout)
549{
550 if (panic_timeout == arch_default_timeout)
551 panic_timeout = timeout;
552}
553extern const char *print_tainted(void);
554enum lockdep_ok {
555 LOCKDEP_STILL_OK,
556 LOCKDEP_NOW_UNRELIABLE
557};
558extern void add_taint(unsigned flag, enum lockdep_ok);
559extern int test_taint(unsigned flag);
560extern unsigned long get_taint(void);
561extern int root_mountflags;
562
563extern bool early_boot_irqs_disabled;
564
565
566
567
568
569extern enum system_states {
570 SYSTEM_BOOTING,
571 SYSTEM_SCHEDULING,
572 SYSTEM_RUNNING,
573 SYSTEM_HALT,
574 SYSTEM_POWER_OFF,
575 SYSTEM_RESTART,
576 SYSTEM_SUSPEND,
577} system_state;
578
579
580#define TAINT_PROPRIETARY_MODULE 0
581#define TAINT_FORCED_MODULE 1
582#define TAINT_CPU_OUT_OF_SPEC 2
583#define TAINT_FORCED_RMMOD 3
584#define TAINT_MACHINE_CHECK 4
585#define TAINT_BAD_PAGE 5
586#define TAINT_USER 6
587#define TAINT_DIE 7
588#define TAINT_OVERRIDDEN_ACPI_TABLE 8
589#define TAINT_WARN 9
590#define TAINT_CRAP 10
591#define TAINT_FIRMWARE_WORKAROUND 11
592#define TAINT_OOT_MODULE 12
593#define TAINT_UNSIGNED_MODULE 13
594#define TAINT_SOFTLOCKUP 14
595#define TAINT_LIVEPATCH 15
596#define TAINT_AUX 16
597#define TAINT_RANDSTRUCT 17
598#define TAINT_FLAGS_COUNT 18
599
600struct taint_flag {
601 char c_true;
602 char c_false;
603 bool module;
604};
605
606extern const struct taint_flag taint_flags[TAINT_FLAGS_COUNT];
607
608extern const char hex_asc[];
609#define hex_asc_lo(x) hex_asc[((x) & 0x0f)]
610#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4]
611
612static inline char *hex_byte_pack(char *buf, u8 byte)
613{
614 *buf++ = hex_asc_hi(byte);
615 *buf++ = hex_asc_lo(byte);
616 return buf;
617}
618
619extern const char hex_asc_upper[];
620#define hex_asc_upper_lo(x) hex_asc_upper[((x) & 0x0f)]
621#define hex_asc_upper_hi(x) hex_asc_upper[((x) & 0xf0) >> 4]
622
623static inline char *hex_byte_pack_upper(char *buf, u8 byte)
624{
625 *buf++ = hex_asc_upper_hi(byte);
626 *buf++ = hex_asc_upper_lo(byte);
627 return buf;
628}
629
630extern int hex_to_bin(char ch);
631extern int __must_check hex2bin(u8 *dst, const char *src, size_t count);
632extern char *bin2hex(char *dst, const void *src, size_t count);
633
634bool mac_pton(const char *s, u8 *mac);
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656enum ftrace_dump_mode {
657 DUMP_NONE,
658 DUMP_ALL,
659 DUMP_ORIG,
660};
661
662#ifdef CONFIG_TRACING
663void tracing_on(void);
664void tracing_off(void);
665int tracing_is_on(void);
666void tracing_snapshot(void);
667void tracing_snapshot_alloc(void);
668
669extern void tracing_start(void);
670extern void tracing_stop(void);
671
672static inline __printf(1, 2)
673void ____trace_printk_check_format(const char *fmt, ...)
674{
675}
676#define __trace_printk_check_format(fmt, args...) \
677do { \
678 if (0) \
679 ____trace_printk_check_format(fmt, ##args); \
680} while (0)
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712#define trace_printk(fmt, ...) \
713do { \
714 char _______STR[] = __stringify((__VA_ARGS__)); \
715 if (sizeof(_______STR) > 3) \
716 do_trace_printk(fmt, ##__VA_ARGS__); \
717 else \
718 trace_puts(fmt); \
719} while (0)
720
721#define do_trace_printk(fmt, args...) \
722do { \
723 static const char *trace_printk_fmt __used \
724 __attribute__((section("__trace_printk_fmt"))) = \
725 __builtin_constant_p(fmt) ? fmt : NULL; \
726 \
727 __trace_printk_check_format(fmt, ##args); \
728 \
729 if (__builtin_constant_p(fmt)) \
730 __trace_bprintk(_THIS_IP_, trace_printk_fmt, ##args); \
731 else \
732 __trace_printk(_THIS_IP_, fmt, ##args); \
733} while (0)
734
735extern __printf(2, 3)
736int __trace_bprintk(unsigned long ip, const char *fmt, ...);
737
738extern __printf(2, 3)
739int __trace_printk(unsigned long ip, const char *fmt, ...);
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766#define trace_puts(str) ({ \
767 static const char *trace_printk_fmt __used \
768 __attribute__((section("__trace_printk_fmt"))) = \
769 __builtin_constant_p(str) ? str : NULL; \
770 \
771 if (__builtin_constant_p(str)) \
772 __trace_bputs(_THIS_IP_, trace_printk_fmt); \
773 else \
774 __trace_puts(_THIS_IP_, str, strlen(str)); \
775})
776extern int __trace_bputs(unsigned long ip, const char *str);
777extern int __trace_puts(unsigned long ip, const char *str, int size);
778
779extern void trace_dump_stack(int skip);
780
781
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784
785
786#define ftrace_vprintk(fmt, vargs) \
787do { \
788 if (__builtin_constant_p(fmt)) { \
789 static const char *trace_printk_fmt __used \
790 __attribute__((section("__trace_printk_fmt"))) = \
791 __builtin_constant_p(fmt) ? fmt : NULL; \
792 \
793 __ftrace_vbprintk(_THIS_IP_, trace_printk_fmt, vargs); \
794 } else \
795 __ftrace_vprintk(_THIS_IP_, fmt, vargs); \
796} while (0)
797
798extern __printf(2, 0) int
799__ftrace_vbprintk(unsigned long ip, const char *fmt, va_list ap);
800
801extern __printf(2, 0) int
802__ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap);
803
804extern void ftrace_dump(enum ftrace_dump_mode oops_dump_mode);
805#else
806static inline void tracing_start(void) { }
807static inline void tracing_stop(void) { }
808static inline void trace_dump_stack(int skip) { }
809
810static inline void tracing_on(void) { }
811static inline void tracing_off(void) { }
812static inline int tracing_is_on(void) { return 0; }
813static inline void tracing_snapshot(void) { }
814static inline void tracing_snapshot_alloc(void) { }
815
816static inline __printf(1, 2)
817int trace_printk(const char *fmt, ...)
818{
819 return 0;
820}
821static __printf(1, 0) inline int
822ftrace_vprintk(const char *fmt, va_list ap)
823{
824 return 0;
825}
826static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
827#endif
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841#define __typecheck(x, y) \
842 (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
843
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846
847
848
849#define __is_constexpr(x) \
850 (sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8)))
851
852#define __no_side_effects(x, y) \
853 (__is_constexpr(x) && __is_constexpr(y))
854
855#define __safe_cmp(x, y) \
856 (__typecheck(x, y) && __no_side_effects(x, y))
857
858#define __cmp(x, y, op) ((x) op (y) ? (x) : (y))
859
860#define __cmp_once(x, y, unique_x, unique_y, op) ({ \
861 typeof(x) unique_x = (x); \
862 typeof(y) unique_y = (y); \
863 __cmp(unique_x, unique_y, op); })
864
865#define __careful_cmp(x, y, op) \
866 __builtin_choose_expr(__safe_cmp(x, y), \
867 __cmp(x, y, op), \
868 __cmp_once(x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y), op))
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874
875#define min(x, y) __careful_cmp(x, y, <)
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881
882#define max(x, y) __careful_cmp(x, y, >)
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890#define min3(x, y, z) min((typeof(x))min(x, y), z)
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897
898#define max3(x, y, z) max((typeof(x))max(x, y), z)
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904
905#define min_not_zero(x, y) ({ \
906 typeof(x) __x = (x); \
907 typeof(y) __y = (y); \
908 __x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); })
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918
919#define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi)
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934#define min_t(type, x, y) __careful_cmp((type)(x), (type)(y), <)
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942#define max_t(type, x, y) __careful_cmp((type)(x), (type)(y), >)
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954#define clamp_t(type, val, lo, hi) min_t(type, max_t(type, val, lo), hi)
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967#define clamp_val(val, lo, hi) clamp_t(typeof(val), val, lo, hi)
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974
975#define swap(a, b) \
976 do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
977
978
979#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n
980#define COUNT_ARGS(X...) __COUNT_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
981
982#define __CONCAT(a, b) a ## b
983#define CONCATENATE(a, b) __CONCAT(a, b)
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992#define container_of(ptr, type, member) ({ \
993 void *__mptr = (void *)(ptr); \
994 BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
995 !__same_type(*(ptr), void), \
996 "pointer type mismatch in container_of()"); \
997 ((type *)(__mptr - offsetof(type, member))); })
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1007#define container_of_safe(ptr, type, member) ({ \
1008 void *__mptr = (void *)(ptr); \
1009 BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
1010 !__same_type(*(ptr), void), \
1011 "pointer type mismatch in container_of()"); \
1012 IS_ERR_OR_NULL(__mptr) ? ERR_CAST(__mptr) : \
1013 ((type *)(__mptr - offsetof(type, member))); })
1014
1015
1016#ifdef CONFIG_FTRACE_MCOUNT_RECORD
1017# define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD
1018#endif
1019
1020
1021#define VERIFY_OCTAL_PERMISSIONS(perms) \
1022 (BUILD_BUG_ON_ZERO((perms) < 0) + \
1023 BUILD_BUG_ON_ZERO((perms) > 0777) + \
1024 \
1025 BUILD_BUG_ON_ZERO((((perms) >> 6) & 4) < (((perms) >> 3) & 4)) + \
1026 BUILD_BUG_ON_ZERO((((perms) >> 3) & 4) < ((perms) & 4)) + \
1027 \
1028 BUILD_BUG_ON_ZERO((((perms) >> 6) & 2) < (((perms) >> 3) & 2)) + \
1029 \
1030 BUILD_BUG_ON_ZERO((perms) & 2) + \
1031 (perms))
1032#endif
1033