diff options
Diffstat (limited to 'backport-include/asm-generic/bug.h')
| -rw-r--r-- | backport-include/asm-generic/bug.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/backport-include/asm-generic/bug.h b/backport-include/asm-generic/bug.h new file mode 100644 index 0000000..4e9e05f --- /dev/null +++ b/backport-include/asm-generic/bug.h @@ -0,0 +1,39 @@ +#ifndef __BACKPORT_ASM_GENERIC_BUG_H +#define __BACKPORT_ASM_GENERIC_BUG_H +#include_next <asm-generic/bug.h> + +#ifndef __WARN +#define __WARN(foo) dump_stack() +#endif + +#ifndef WARN_ONCE +#define WARN_ONCE(condition, format...) ({ \ + static int __warned; \ + int __ret_warn_once = !!(condition); \ + \ + if (unlikely(__ret_warn_once)) \ + if (WARN(!__warned, format)) \ + __warned = 1; \ + unlikely(__ret_warn_once); \ +}) +#endif + +#ifndef __WARN_printf +/* + * To port this properly we'd have to port warn_slowpath_null(), + * which I'm lazy to do so just do a regular print for now. If you + * want to port this read kernel/panic.c + */ +#define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0) +#endif + +#ifndef WARN +#define WARN(condition, format...) ({ \ + int __ret_warn_on = !!(condition); \ + if (unlikely(__ret_warn_on)) \ + __WARN_printf(format); \ + unlikely(__ret_warn_on); \ +}) +#endif + +#endif /* __BACKPORT_ASM_GENERIC_BUG_H */ |