cifs: Make CIFS_DEBUG possible to undefine

Make the compilation work again when CIFS_DEBUG is not #define'd.

Add format and argument verification for the various macros when
CIFS_DEBUG is not #define'd.

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
1 file changed