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Commit 903c0c7c authored by KOSAKI Motohiro's avatar KOSAKI Motohiro Committed by Linus Torvalds
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sparse: define dummy BUILD_BUG_ON definition for sparse 



BUILD_BUG_ON() causes a syntax error to detect coding errors.  So it
causes sparse to detect an error too.  This reduces sparse's usefulness.

This patch makes a dummy BUILD_BUG_ON() definition for sparse.

Signed-off-by: default avatarKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d2b46313

include/linux/kernel.h

+8 −0
Original line number Diff line number Diff line
@@ -638,6 +638,13 @@ struct sysinfo { 
	char _f[20-2*sizeof(long)-sizeof(int)];	/* Padding: libc5 uses this.. */

};



#ifdef __CHECKER__

#define BUILD_BUG_ON_NOT_POWER_OF_2(n)

#define BUILD_BUG_ON_ZERO(e)

#define BUILD_BUG_ON_NULL(e)

#define BUILD_BUG_ON(condition)

#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))
@@ -674,6 +681,7 @@ extern int __build_bug_on_failed; 
		if (condition) __build_bug_on_failed = 1;	\

	} while(0)

#endif

#endif	/* __CHECKER__ */



/* Trap pasters of __FUNCTION__ at compile-time */

#define __FUNCTION__ (__func__)