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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3031 | serge | 1 | #ifndef _ASM_GENERIC_BUG_H |
| 2 | #define _ASM_GENERIC_BUG_H |
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| 3 | |||
| 3391 | Serge | 4 | //extern __printf(3, 4) |
| 5 | //void warn_slowpath_fmt(const char *file, const int line, |
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| 6 | // const char *fmt, ...); |
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| 7 | //extern __printf(4, 5) |
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| 8 | //void warn_slowpath_fmt_taint(const char *file, const int line, unsigned taint, |
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| 9 | // const char *fmt, ...); |
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| 3031 | serge | 10 | |
| 3391 | Serge | 11 | //extern void warn_slowpath_null(const char *file, const int line); |
| 3031 | serge | 12 | |
| 3391 | Serge | 13 | #define __WARN() printf("\nWARNING: at %s:%d\n", __FILE__, __LINE__) |
| 3747 | Serge | 14 | //#define __WARN_printf(arg...) printf("\nWARNING: at %s:%d\n", __FILE__, __LINE__) |
| 15 | #define __WARN_printf(arg...) do { printf(arg); __WARN(); } while (0) |
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| 3391 | Serge | 16 | |
| 17 | #define WARN(condition, format...) ({ \ |
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| 18 | int __ret_warn_on = !!(condition); \ |
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| 19 | if (unlikely(__ret_warn_on)) \ |
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| 20 | __WARN_printf(format); \ |
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| 21 | unlikely(__ret_warn_on); \ |
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| 3031 | serge | 22 | }) |
| 23 | |||
| 24 | |||
| 3391 | Serge | 25 | #define WARN_ON(condition) ({ \ |
| 26 | int __ret_warn_on = !!(condition); \ |
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| 27 | if (unlikely(__ret_warn_on)) \ |
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| 28 | __WARN(); \ |
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| 29 | unlikely(__ret_warn_on); \ |
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| 30 | }) |
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| 31 | |||
| 32 | |||
| 33 | #define WARN_ONCE(condition, format...) ({ \ |
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| 34 | static bool __warned; \ |
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| 35 | int __ret_warn_once = !!(condition); \ |
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| 36 | \ |
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| 37 | if (unlikely(__ret_warn_once)) \ |
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| 38 | if (WARN(!__warned, format)) \ |
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| 39 | __warned = true; \ |
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| 40 | unlikely(__ret_warn_once); \ |
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| 41 | }) |
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| 42 | |||
| 43 | |||
| 44 | #define WARN_ON_ONCE(condition) ({ \ |
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| 45 | static bool __warned; \ |
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| 46 | int __ret_warn_once = !!(condition); \ |
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| 47 | \ |
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| 48 | if (unlikely(__ret_warn_once)) \ |
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| 49 | if (WARN_ON(!__warned)) \ |
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| 50 | __warned = true; \ |
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| 51 | unlikely(__ret_warn_once); \ |
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| 52 | }) |
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| 53 | |||
| 54 | #define BUG() do { \ |
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| 55 | printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \ |
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| 56 | } while (0) |
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| 57 | |||
| 58 | #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0) |
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| 59 | |||
| 5056 | serge | 60 | /* Force a compilation error if a constant expression is not a power of 2 */ |
| 3480 | Serge | 61 | #define BUILD_BUG_ON_NOT_POWER_OF_2(n) \ |
| 62 | BUILD_BUG_ON((n) == 0 || (((n) & ((n) - 1)) != 0)) |
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| 3391 | Serge | 63 | |
| 64 | |||
| 3482 | Serge | 65 | #define printk_once(fmt, ...) \ |
| 66 | ({ \ |
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| 67 | static bool __print_once; \ |
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| 68 | \ |
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| 69 | if (!__print_once) { \ |
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| 70 | __print_once = true; \ |
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| 71 | printk(fmt, ##__VA_ARGS__); \ |
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| 72 | } \ |
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| 73 | }) |
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| 74 | |||
| 75 | |||
| 76 | #define pr_warn_once(fmt, ...) \ |
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| 77 | printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) |
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| 78 | |||
| 3031 | serge | 79 | #endif |