jffs2: Standardize JFFS_<LEVEL> uses

Use pr_<level> to prefix KBUILD_MODNAME via pr_fmt.

Remove obfuscating defines and use constants in pr_<level>
No need for a do {} while (0) for single statements.

Form of JFFS_<LEVEL> output changes from
"JFFS2 notice: " to "jffs2: notice: "

Added pr_fmt to xattr.c

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/fs/jffs2/debug.c b/fs/jffs2/debug.c
index f8a99a3..1090eb6 100644
--- a/fs/jffs2/debug.c
+++ b/fs/jffs2/debug.c
@@ -267,7 +267,7 @@
 do {									\
 	if (sz != c->sz##_size) {					\
 		pr_warn("%s_size mismatch counted 0x%x, c->%s_size 0x%x\n", \
-			#sz, #sz, sz, c->sz##_size);			\
+			#sz, sz, #sz, c->sz##_size);			\
 		dump = 1;						\
 	}								\
 } while (0)