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[MTD] MTD_DEBUG always does compile-time typechecks

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The current style for debug messages is to ensure they're always
parsed by the compiler and then subjected to dead code removal.
That way builds won't break only when debug options get enabled,
which is common when they are stripped out early by CPP.

This patch makes CONFIG_MTD_DEBUG adopt that convention.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
David Brownell 2008-07-29 22:28:12 -07:00 committed by David Woodhouse
parent 771999b65f
commit 95b1bc2053
1 changed files with 5 additions and 1 deletions
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6
include/linux/mtd/mtd.h
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@ -272,7 +272,11 @@ static inline void mtd_erase_callback(struct erase_info *instr)
printk(KERN_INFO args); \ printk(KERN_INFO args); \
} while(0) } while(0)
#else /* CONFIG_MTD_DEBUG */ #else /* CONFIG_MTD_DEBUG */
#define DEBUG(n, args...) do { } while(0) #define DEBUG(n, args...) \
do { \
if (0) \
printk(KERN_INFO args); \
} while(0)
#endif /* CONFIG_MTD_DEBUG */ #endif /* CONFIG_MTD_DEBUG */