hc
2024-02-19 1c055e55a242a33e574e48be530e06770a210dcd
kernel/include/linux/kernel.h
....@@ -10,6 +10,7 @@
1010 #include <linux/types.h>
1111 #include <linux/compiler.h>
1212 #include <linux/bitops.h>
13
+#include <linux/kstrtox.h>
1314 #include <linux/log2.h>
1415 #include <linux/minmax.h>
1516 #include <linux/typecheck.h>
....@@ -46,6 +47,8 @@
4647 * @arr: array to be sized
4748 */
4849 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
50
+
51
+#define PTR_IF(cond, ptr) ((cond) ? (ptr) : NULL)
4952
5053 #define u64_to_user_ptr(x) ( \
5154 { \
....@@ -320,153 +323,12 @@
320323 __printf(1, 2)
321324 void panic(const char *fmt, ...) __noreturn __cold;
322325 void nmi_panic(struct pt_regs *regs, const char *msg);
326
+void check_panic_on_warn(const char *origin);
323327 extern void oops_enter(void);
324328 extern void oops_exit(void);
325329 extern bool oops_may_print(void);
326330 void do_exit(long error_code) __noreturn;
327331 void complete_and_exit(struct completion *, long) __noreturn;
328
-
329
-/* Internal, do not use. */
330
-int __must_check _kstrtoul(const char *s, unsigned int base, unsigned long *res);
331
-int __must_check _kstrtol(const char *s, unsigned int base, long *res);
332
-
333
-int __must_check kstrtoull(const char *s, unsigned int base, unsigned long long *res);
334
-int __must_check kstrtoll(const char *s, unsigned int base, long long *res);
335
-
336
-/**
337
- * kstrtoul - convert a string to an unsigned long
338
- * @s: The start of the string. The string must be null-terminated, and may also
339
- * include a single newline before its terminating null. The first character
340
- * may also be a plus sign, but not a minus sign.
341
- * @base: The number base to use. The maximum supported base is 16. If base is
342
- * given as 0, then the base of the string is automatically detected with the
343
- * conventional semantics - If it begins with 0x the number will be parsed as a
344
- * hexadecimal (case insensitive), if it otherwise begins with 0, it will be
345
- * parsed as an octal number. Otherwise it will be parsed as a decimal.
346
- * @res: Where to write the result of the conversion on success.
347
- *
348
- * Returns 0 on success, -ERANGE on overflow and -EINVAL on parsing error.
349
- * Preferred over simple_strtoul(). Return code must be checked.
350
-*/
351
-static inline int __must_check kstrtoul(const char *s, unsigned int base, unsigned long *res)
352
-{
353
- /*
354
- * We want to shortcut function call, but
355
- * __builtin_types_compatible_p(unsigned long, unsigned long long) = 0.
356
- */
357
- if (sizeof(unsigned long) == sizeof(unsigned long long) &&
358
- __alignof__(unsigned long) == __alignof__(unsigned long long))
359
- return kstrtoull(s, base, (unsigned long long *)res);
360
- else
361
- return _kstrtoul(s, base, res);
362
-}
363
-
364
-/**
365
- * kstrtol - convert a string to a long
366
- * @s: The start of the string. The string must be null-terminated, and may also
367
- * include a single newline before its terminating null. The first character
368
- * may also be a plus sign or a minus sign.
369
- * @base: The number base to use. The maximum supported base is 16. If base is
370
- * given as 0, then the base of the string is automatically detected with the
371
- * conventional semantics - If it begins with 0x the number will be parsed as a
372
- * hexadecimal (case insensitive), if it otherwise begins with 0, it will be
373
- * parsed as an octal number. Otherwise it will be parsed as a decimal.
374
- * @res: Where to write the result of the conversion on success.
375
- *
376
- * Returns 0 on success, -ERANGE on overflow and -EINVAL on parsing error.
377
- * Preferred over simple_strtol(). Return code must be checked.
378
- */
379
-static inline int __must_check kstrtol(const char *s, unsigned int base, long *res)
380
-{
381
- /*
382
- * We want to shortcut function call, but
383
- * __builtin_types_compatible_p(long, long long) = 0.
384
- */
385
- if (sizeof(long) == sizeof(long long) &&
386
- __alignof__(long) == __alignof__(long long))
387
- return kstrtoll(s, base, (long long *)res);
388
- else
389
- return _kstrtol(s, base, res);
390
-}
391
-
392
-int __must_check kstrtouint(const char *s, unsigned int base, unsigned int *res);
393
-int __must_check kstrtoint(const char *s, unsigned int base, int *res);
394
-
395
-static inline int __must_check kstrtou64(const char *s, unsigned int base, u64 *res)
396
-{
397
- return kstrtoull(s, base, res);
398
-}
399
-
400
-static inline int __must_check kstrtos64(const char *s, unsigned int base, s64 *res)
401
-{
402
- return kstrtoll(s, base, res);
403
-}
404
-
405
-static inline int __must_check kstrtou32(const char *s, unsigned int base, u32 *res)
406
-{
407
- return kstrtouint(s, base, res);
408
-}
409
-
410
-static inline int __must_check kstrtos32(const char *s, unsigned int base, s32 *res)
411
-{
412
- return kstrtoint(s, base, res);
413
-}
414
-
415
-int __must_check kstrtou16(const char *s, unsigned int base, u16 *res);
416
-int __must_check kstrtos16(const char *s, unsigned int base, s16 *res);
417
-int __must_check kstrtou8(const char *s, unsigned int base, u8 *res);
418
-int __must_check kstrtos8(const char *s, unsigned int base, s8 *res);
419
-int __must_check kstrtobool(const char *s, bool *res);
420
-
421
-int __must_check kstrtoull_from_user(const char __user *s, size_t count, unsigned int base, unsigned long long *res);
422
-int __must_check kstrtoll_from_user(const char __user *s, size_t count, unsigned int base, long long *res);
423
-int __must_check kstrtoul_from_user(const char __user *s, size_t count, unsigned int base, unsigned long *res);
424
-int __must_check kstrtol_from_user(const char __user *s, size_t count, unsigned int base, long *res);
425
-int __must_check kstrtouint_from_user(const char __user *s, size_t count, unsigned int base, unsigned int *res);
426
-int __must_check kstrtoint_from_user(const char __user *s, size_t count, unsigned int base, int *res);
427
-int __must_check kstrtou16_from_user(const char __user *s, size_t count, unsigned int base, u16 *res);
428
-int __must_check kstrtos16_from_user(const char __user *s, size_t count, unsigned int base, s16 *res);
429
-int __must_check kstrtou8_from_user(const char __user *s, size_t count, unsigned int base, u8 *res);
430
-int __must_check kstrtos8_from_user(const char __user *s, size_t count, unsigned int base, s8 *res);
431
-int __must_check kstrtobool_from_user(const char __user *s, size_t count, bool *res);
432
-
433
-static inline int __must_check kstrtou64_from_user(const char __user *s, size_t count, unsigned int base, u64 *res)
434
-{
435
- return kstrtoull_from_user(s, count, base, res);
436
-}
437
-
438
-static inline int __must_check kstrtos64_from_user(const char __user *s, size_t count, unsigned int base, s64 *res)
439
-{
440
- return kstrtoll_from_user(s, count, base, res);
441
-}
442
-
443
-static inline int __must_check kstrtou32_from_user(const char __user *s, size_t count, unsigned int base, u32 *res)
444
-{
445
- return kstrtouint_from_user(s, count, base, res);
446
-}
447
-
448
-static inline int __must_check kstrtos32_from_user(const char __user *s, size_t count, unsigned int base, s32 *res)
449
-{
450
- return kstrtoint_from_user(s, count, base, res);
451
-}
452
-
453
-/*
454
- * Use kstrto<foo> instead.
455
- *
456
- * NOTE: simple_strto<foo> does not check for the range overflow and,
457
- * depending on the input, may give interesting results.
458
- *
459
- * Use these functions if and only if you cannot use kstrto<foo>, because
460
- * the conversion ends on the first non-digit character, which may be far
461
- * beyond the supported range. It might be useful to parse the strings like
462
- * 10x50 or 12:21 without altering original string or temporary buffer in use.
463
- * Keep in mind above caveat.
464
- */
465
-
466
-extern unsigned long simple_strtoul(const char *,char **,unsigned int);
467
-extern long simple_strtol(const char *,char **,unsigned int);
468
-extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
469
-extern long long simple_strtoll(const char *,char **,unsigned int);
470332
471333 extern int num_to_str(char *buf, int size,
472334 unsigned long long num, unsigned int width);
....@@ -519,12 +381,6 @@
519381 return (u32)int_sqrt(x);
520382 }
521383 #endif
522
-
523
-#ifdef CONFIG_SMP
524
-extern unsigned int sysctl_oops_all_cpu_backtrace;
525
-#else
526
-#define sysctl_oops_all_cpu_backtrace 0
527
-#endif /* CONFIG_SMP */
528384
529385 extern void bust_spinlocks(int yes);
530386 extern int panic_timeout;