--- zzzz-none-000/linux-2.6.32.61/include/linux/ring_buffer.h	2013-06-10 09:43:48.000000000 +0000
+++ virian-300e-630/linux-2.6.32.61/include/linux/ring_buffer.h	2014-08-26 16:00:07.000000000 +0000
@@ -52,6 +52,7 @@
  *				  size = 4 + length (bytes)
  */
 enum ring_buffer_type {
+    RINGBUF_TYPE_NODATA,
 	RINGBUF_TYPE_DATA_TYPE_LEN_MAX = 28,
 	RINGBUF_TYPE_PADDING,
 	RINGBUF_TYPE_TIME_EXTEND,