projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _ASM_GENERIC_BUG_H |
| 2 | #define _ASM_GENERIC_BUG_H | |
| 3 | ||
| 4 | #include <linux/compiler.h> | |
| 1da177e4 | 5 | |
| c8538a7a | 6 | #ifdef CONFIG_BUG |
| 1da177e4 LT |
7 | #ifndef HAVE_ARCH_BUG |
| 8 | #define BUG() do { \ | |
| 91368d73 | 9 | printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \ |
| 1da177e4 LT |
10 | panic("BUG!"); \ |
| 11 | } while (0) | |
| 12 | #endif | |
| 13 | ||
| 1da177e4 LT |
14 | #ifndef HAVE_ARCH_BUG_ON |
| 15 | #define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0) | |
| 16 | #endif | |
| 17 | ||
| 18 | #ifndef HAVE_ARCH_WARN_ON | |
| 19 | #define WARN_ON(condition) do { \ | |
| 20 | if (unlikely((condition)!=0)) { \ | |
| 91368d73 | 21 | printk("BUG: warning at %s:%d/%s()\n", __FILE__, __LINE__, __FUNCTION__); \ |
| 1da177e4 LT |
22 | dump_stack(); \ |
| 23 | } \ | |
| 24 | } while (0) | |
| 25 | #endif | |
| 26 | ||
| c8538a7a MM |
27 | #else /* !CONFIG_BUG */ |
| 28 | #ifndef HAVE_ARCH_BUG | |
| 29 | #define BUG() | |
| 30 | #endif | |
| 31 | ||
| c8538a7a MM |
32 | #ifndef HAVE_ARCH_BUG_ON |
| 33 | #define BUG_ON(condition) do { if (condition) ; } while(0) | |
| 34 | #endif | |
| 35 | ||
| 36 | #ifndef HAVE_ARCH_WARN_ON | |
| 37 | #define WARN_ON(condition) do { if (condition) ; } while(0) | |
| 38 | #endif | |
| 39 | #endif | |
| 40 | ||
| 74bb6a09 IM |
41 | #define WARN_ON_ONCE(condition) \ |
| 42 | ({ \ | |
| 43 | static int __warn_once = 1; \ | |
| 44 | int __ret = 0; \ | |
| 45 | \ | |
| 46 | if (unlikely((condition) && __warn_once)) { \ | |
| 47 | __warn_once = 0; \ | |
| 48 | WARN_ON(1); \ | |
| 49 | __ret = 1; \ | |
| 50 | } \ | |
| 51 | __ret; \ | |
| 52 | }) | |
| 53 | ||
| 8eb94f80 IM |
54 | #ifdef CONFIG_SMP |
| 55 | # define WARN_ON_SMP(x) WARN_ON(x) | |
| 56 | #else | |
| 57 | # define WARN_ON_SMP(x) do { } while (0) | |
| 58 | #endif | |
| 59 | ||
| 1da177e4 | 60 | #endif |