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Commit 3a6a62f9 authored by Olof Johansson's avatar Olof Johansson Committed by Ingo Molnar
Browse files

debug: introduce __WARN() 



Introduce __WARN() in the generic case, so the generic WARN_ON()
can use arch-specific code for when the condition is true.

Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent f315decb

include/asm-generic/bug.h

+11 −6
Original line number Diff line number Diff line
@@ -31,14 +31,19 @@ struct bug_entry { 
#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0)

#endif



#ifndef HAVE_ARCH_WARN_ON

#define WARN_ON(condition) ({						\

	int __ret_warn_on = !!(condition);				\

	if (unlikely(__ret_warn_on)) {					\

#ifndef __WARN

#define __WARN() do {							\

	printk("WARNING: at %s:%d %s()\n", __FILE__,			\

		__LINE__, __FUNCTION__);				\

	dump_stack();							\

	}								\

} while (0)

#endif



#ifndef WARN_ON

#define WARN_ON(condition) ({						\

	int __ret_warn_on = !!(condition);				\

	if (unlikely(__ret_warn_on))					\

		__WARN();						\

	unlikely(__ret_warn_on);					\

})

#endif