diff --git a/include/uapi/sound/asoc.h b/include/uapi/sound/asoc.h
index 12215205ab8d0b11d854dcaa29f00bed48a980c7..677c3c939f1d9abddfee16d3bbac5636b279854d 100644
--- a/include/uapi/sound/asoc.h
+++ b/include/uapi/sound/asoc.h
@@ -18,6 +18,12 @@
 #include <linux/types.h>
 #include <sound/asound.h>
 
+#ifndef __KERNEL__
+#error This API is an early revision and not enabled in the current
+#error kernel release, it will be enabled in a future kernel version
+#error with incompatible changes to what is here.
+#endif
+
 /*
  * Maximum number of channels topology kcontrol can represent.
  */