BUILD: buffer: types/{ring.h,checks.h} should include buf.h, not buffer.h
buffer.h relies on proto/activity because it contains some code and not
just type definitions. It must not be included from types files. It
should probably also be split in two if it starts to include a proto.
This causes some circular dependencies at other places.
diff --git a/include/types/checks.h b/include/types/checks.h
index 03d2305..7365048 100644
--- a/include/types/checks.h
+++ b/include/types/checks.h
@@ -18,7 +18,7 @@
#include <common/config.h>
#include <common/mini-clist.h>
#include <common/regex.h>
-#include <common/buffer.h>
+#include <common/buf.h>
#include <types/connection.h>
#include <types/obj_type.h>
diff --git a/include/types/ring.h b/include/types/ring.h
index 86c507f..5f08271 100644
--- a/include/types/ring.h
+++ b/include/types/ring.h
@@ -22,7 +22,7 @@
#ifndef _TYPES_RING_H
#define _TYPES_RING_H
-#include <common/buffer.h>
+#include <common/buf.h>
#include <common/compat.h>
#include <common/config.h>
#include <common/ist.h>