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Expand null macros to `do {} while (0)', not to nothing.

This commit is contained in:
riastradh 2014-07-17 14:55:32 +00:00
parent 3c8e94233f
commit 52c71abc12
1 changed files with 2 additions and 2 deletions
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4
sys/sys/systm.h
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@ -1,4 +1,4 @@
/* $NetBSD: systm.h,v 1.263 2014/04/03 15:22:57 christos Exp $ */
/* $NetBSD: systm.h,v 1.264 2014/07/17 14:55:32 riastradh Exp $ */
/*-
* Copyright (c) 1982, 1988, 1991, 1993
@ -527,7 +527,7 @@ void assert_sleepable(void);
#if defined(DEBUG)
#define ASSERT_SLEEPABLE() assert_sleepable()
#else /* defined(DEBUG) */
#define ASSERT_SLEEPABLE() /* nothing */
#define ASSERT_SLEEPABLE() do {} while (0)
#endif /* defined(DEBUG) */
vaddr_t calc_cache_size(vsize_t , int, int);