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-rw-r--r--include/xen/interface/io/ring.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h
index c79456855539..3f40501fc60b 100644
--- a/include/xen/interface/io/ring.h
+++ b/include/xen/interface/io/ring.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/******************************************************************************
* ring.h
*
@@ -9,6 +10,8 @@
#ifndef __XEN_PUBLIC_IO_RING_H__
#define __XEN_PUBLIC_IO_RING_H__
+#include <xen/interface/grant_table.h>
+
typedef unsigned int RING_IDX;
/* Round a 32-bit unsigned constant down to the nearest power of two. */