X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Flinux%2Fbug.h;h=29f84168a38d597534793d7651b677c32f4461c1;hb=883d8778ae177172c0a53c018faa39e61f30dea3;hp=920e3796c38dd3bf805e2e11443faec7d128b064;hpb=84b8bf6d5d2a52fb40124c881de162b094ff5cc1;p=oweals%2Fu-boot.git

diff --git a/include/linux/bug.h b/include/linux/bug.h
index 920e3796c3..29f84168a3 100644
--- a/include/linux/bug.h
+++ b/include/linux/bug.h
@@ -1,55 +1,52 @@
 #ifndef _LINUX_BUG_H
 #define _LINUX_BUG_H
 
+#include <vsprintf.h> /* for panic() */
+#include <linux/build_bug.h>
 #include <linux/compiler.h>
-
-#ifdef __CHECKER__
-#define BUILD_BUG_ON_NOT_POWER_OF_2(n) (0)
-#define BUILD_BUG_ON_ZERO(e) (0)
-#define BUILD_BUG_ON_NULL(e) ((void*)0)
-#define BUILD_BUG_ON_INVALID(e) (0)
-#define BUILD_BUG_ON(condition) (0)
-#define BUILD_BUG() (0)
-#else /* __CHECKER__ */
-
-/* Force a compilation error if a constant expression is not a power of 2 */
-#define BUILD_BUG_ON_NOT_POWER_OF_2(n)			\
-	BUILD_BUG_ON((n) == 0 || (((n) & ((n) - 1)) != 0))
-
-/* Force a compilation error if condition is true, but also produce a
-   result (of value 0 and type size_t), so the expression can be used
-   e.g. in a structure initializer (or where-ever else comma expressions
-   aren't permitted). */
-#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
-#define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); }))
-
-/*
- * BUILD_BUG_ON_INVALID() permits the compiler to check the validity of the
- * expression but avoids the generation of any code, even if that expression
- * has side-effects.
- */
-#define BUILD_BUG_ON_INVALID(e) ((void)(sizeof((__force long)(e))))
-
-/**
- * BUILD_BUG_ON - break compile if a condition is true.
- * @condition: the condition which the compiler should know is false.
- *
- * If you have some code which relies on certain constants being equal, or
- * some other compile-time-evaluated condition, you should use BUILD_BUG_ON to
- * detect if someone changes it.
- *
- * The implementation uses gcc's reluctance to create a negative array, but gcc
- * (as of 4.4) only emits that error for obvious cases (e.g. not arguments to
- * inline functions).  Luckily, in 4.3 they added the "error" function
- * attribute just for this type of case.  Thus, we use a negative sized array
- * (should always create an error on gcc versions older than 4.4) and then call
- * an undefined function with the error attribute (should always create an
- * error on gcc 4.3 and later).  If for some reason, neither creates a
- * compile-time error, we'll still have a link-time error, which is harder to
- * track down.
- */
-#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
-
-#endif	/* __CHECKER__ */
+#include <linux/printk.h>
+
+#define BUG() do { \
+	printk("BUG at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
+	panic("BUG!"); \
+} while (0)
+
+#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
+
+#define WARN_ON(condition) ({						\
+	int __ret_warn_on = !!(condition);				\
+	if (unlikely(__ret_warn_on))					\
+		printk("WARNING at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
+	unlikely(__ret_warn_on);					\
+})
+
+#define WARN(condition, format...) ({                   \
+	int __ret_warn_on = !!(condition);              \
+	if (unlikely(__ret_warn_on))                    \
+		printf(format);                  \
+	unlikely(__ret_warn_on);                    \
+})
+
+#define WARN_ON_ONCE(condition)	({				\
+	static bool __warned;					\
+	int __ret_warn_once = !!(condition);			\
+								\
+	if (unlikely(__ret_warn_once && !__warned)) {		\
+		__warned = true;				\
+		WARN_ON(1);					\
+	}							\
+	unlikely(__ret_warn_once);				\
+})
+
+#define WARN_ONCE(condition, format...) ({          \
+	static bool __warned;     \
+	int __ret_warn_once = !!(condition);            \
+								\
+	if (unlikely(__ret_warn_once && !__warned)) {       \
+		__warned = true;                \
+		WARN(1, format);                \
+	}                           \
+	unlikely(__ret_warn_once);              \
+})
 
 #endif	/* _LINUX_BUG_H */