diff options
Diffstat (limited to 'include/asm-generic/bug.h')
| -rw-r--r-- | include/asm-generic/bug.h | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 18c435d7c08..c2c9ba032d4 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -25,7 +25,10 @@ struct bug_entry { }; #endif /* __ASSEMBLY__ */ -#define BUGFLAG_WARNING (1<<0) +#define BUGFLAG_WARNING (1 << 0) +#define BUGFLAG_TAINT(taint) (BUGFLAG_WARNING | ((taint) << 8)) +#define BUG_GET_TAINT(bug) ((bug)->flags >> 8) + #endif /* CONFIG_GENERIC_BUG */ /* @@ -56,17 +59,25 @@ struct bug_entry { * appear at runtime. Use the versions with printk format strings * to provide better diagnostics. */ -#ifndef __WARN +#ifndef __WARN_TAINT #ifndef __ASSEMBLY__ extern void warn_slowpath_fmt(const char *file, const int line, const char *fmt, ...) __attribute__((format(printf, 3, 4))); +extern void warn_slowpath_fmt_taint(const char *file, const int line, + unsigned taint, const char *fmt, ...) + __attribute__((format(printf, 4, 5))); extern void warn_slowpath_null(const char *file, const int line); #define WANT_WARN_ON_SLOWPATH #endif #define __WARN() warn_slowpath_null(__FILE__, __LINE__) #define __WARN_printf(arg...) warn_slowpath_fmt(__FILE__, __LINE__, arg) +#define __WARN_printf_taint(taint, arg...) \ + warn_slowpath_fmt_taint(__FILE__, __LINE__, taint, arg) #else +#define __WARN() __WARN_TAINT(TAINT_WARN) #define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0) +#define __WARN_printf_taint(taint, arg...) \ + do { printk(arg); __WARN_TAINT(taint); } while (0) #endif #ifndef WARN_ON @@ -87,6 +98,13 @@ extern void warn_slowpath_null(const char *file, const int line); }) #endif +#define WARN_TAINT(condition, taint, format...) ({ \ + int __ret_warn_on = !!(condition); \ + if (unlikely(__ret_warn_on)) \ + __WARN_printf_taint(taint, format); \ + unlikely(__ret_warn_on); \ +}) + #else /* !CONFIG_BUG */ #ifndef HAVE_ARCH_BUG #define BUG() do {} while(0) @@ -110,6 +128,8 @@ extern void warn_slowpath_null(const char *file, const int line); }) #endif +#define WARN_TAINT(condition, taint, format...) WARN_ON(condition) + #endif #define WARN_ON_ONCE(condition) ({ \ @@ -132,6 +152,16 @@ extern void warn_slowpath_null(const char *file, const int line); unlikely(__ret_warn_once); \ }) +#define WARN_TAINT_ONCE(condition, taint, format...) ({ \ + static bool __warned; \ + int __ret_warn_once = !!(condition); \ + \ + if (unlikely(__ret_warn_once)) \ + if (WARN_TAINT(!__warned, taint, format)) \ + __warned = true; \ + unlikely(__ret_warn_once); \ +}) + #define WARN_ON_RATELIMIT(condition, state) \ WARN_ON((condition) && __ratelimit(state)) |