| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Namhyung Kim | 02dfc8d | 2014-01-09 23:00:54 +0900 | [diff] [blame] | 2 | #ifndef _TOOLS_ASM_BUG_H |
| 3 | #define _TOOLS_ASM_BUG_H |
| Arnaldo Carvalho de Melo | b32d133 | 2009-11-24 12:05:15 -0200 | [diff] [blame] | 4 | |
| Namhyung Kim | 741a0c5 | 2014-01-09 23:00:55 +0900 | [diff] [blame] | 5 | #include <linux/compiler.h> |
| 6 | |
| Arnaldo Carvalho de Melo | b32d133 | 2009-11-24 12:05:15 -0200 | [diff] [blame] | 7 | #define __WARN_printf(arg...) do { fprintf(stderr, arg); } while (0) |
| 8 | |
| 9 | #define WARN(condition, format...) ({ \ |
| 10 | int __ret_warn_on = !!(condition); \ |
| 11 | if (unlikely(__ret_warn_on)) \ |
| 12 | __WARN_printf(format); \ |
| 13 | unlikely(__ret_warn_on); \ |
| 14 | }) |
| 15 | |
| Matthew Wilcox | b246a9d | 2016-12-19 11:07:17 -0500 | [diff] [blame] | 16 | #define WARN_ON(condition) ({ \ |
| 17 | int __ret_warn_on = !!(condition); \ |
| 18 | if (unlikely(__ret_warn_on)) \ |
| 19 | __WARN_printf("assertion failed at %s:%d\n", \ |
| 20 | __FILE__, __LINE__); \ |
| 21 | unlikely(__ret_warn_on); \ |
| 22 | }) |
| 23 | |
| Matthew Wilcox | ebb9a9a | 2016-12-14 15:07:56 -0800 | [diff] [blame] | 24 | #define WARN_ON_ONCE(condition) ({ \ |
| 25 | static int __warned; \ |
| 26 | int __ret_warn_once = !!(condition); \ |
| 27 | \ |
| 28 | if (unlikely(__ret_warn_once && !__warned)) { \ |
| 29 | __warned = true; \ |
| 30 | WARN_ON(1); \ |
| 31 | } \ |
| 32 | unlikely(__ret_warn_once); \ |
| 33 | }) |
| 34 | |
| Arnaldo Carvalho de Melo | b32d133 | 2009-11-24 12:05:15 -0200 | [diff] [blame] | 35 | #define WARN_ONCE(condition, format...) ({ \ |
| 36 | static int __warned; \ |
| 37 | int __ret_warn_once = !!(condition); \ |
| 38 | \ |
| 39 | if (unlikely(__ret_warn_once)) \ |
| 40 | if (WARN(!__warned, format)) \ |
| 41 | __warned = 1; \ |
| 42 | unlikely(__ret_warn_once); \ |
| 43 | }) |
| Namhyung Kim | 02dfc8d | 2014-01-09 23:00:54 +0900 | [diff] [blame] | 44 | |
| 45 | #endif /* _TOOLS_ASM_BUG_H */ |