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ext4: address a benign compiler warning 

When !defined(CONFIG_EXT4_DEBUG), mb_debug() should be defined as a
no_printk() statement instead of an empty statement in order to suppress
the following compiler warning:

fs/ext4/mballoc.c: In function ‘ext4_mb_cleanup_pa’:
fs/ext4/mballoc.c:2659:47: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
   mb_debug(1, "mballoc: %u PAs left\n", count);

Signed-off-by: Patrick Palka <patrick@parcs.ath.cx>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Patrick Palka 2014-02-17 20:50:59 -05:00 committed by Theodore Ts'o
parent 7747e6d028
commit 024949ec8f
1 changed files with 1 additions and 1 deletions
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2
fs/ext4/mballoc.h
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@ -48,7 +48,7 @@ extern ushort ext4_mballoc_debug;
} \ } \
} while (0) } while (0)
#else #else
#define mb_debug(n, fmt, a...) #define mb_debug(n, fmt, a...) no_printk(fmt, ## a)
#endif #endif
#define EXT4_MB_HISTORY_ALLOC 1 /* allocation */ #define EXT4_MB_HISTORY_ALLOC 1 /* allocation */