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@xxxxxxxxxxxx> --- fs/ext4/mballoc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h index 08481ee..9347328 100644 --- a/fs/ext4/mballoc.h +++ b/fs/ext4/mballoc.h @@ -48,7 +48,7 @@ extern ushort ext4_mballoc_debug; } \ } while (0) #else -#define mb_debug(n, fmt, a...) +#define mb_debug(n, fmt, a...) no_printk(fmt, ## a) #endif #define EXT4_MB_HISTORY_ALLOC 1 /* allocation */ -- 1.9.0.rc3 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html