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-rw-r--r--include/xen/interface/io/blkif.h1
-rw-r--r--include/xen/interface/io/console.h1
-rw-r--r--include/xen/interface/io/protocols.h1
-rw-r--r--include/xen/interface/io/ring.h1
-rw-r--r--include/xen/interface/io/xenbus.h1
-rw-r--r--include/xen/interface/io/xs_wire.h1
6 files changed, 6 insertions, 0 deletions
diff --git a/include/xen/interface/io/blkif.h b/include/xen/interface/io/blkif.h
index 8b8cfadf7833..5e40041c7e95 100644
--- a/include/xen/interface/io/blkif.h
+++ b/include/xen/interface/io/blkif.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/******************************************************************************
* blkif.h
*
diff --git a/include/xen/interface/io/console.h b/include/xen/interface/io/console.h
index e563de70f784..85ca8b02695a 100644
--- a/include/xen/interface/io/console.h
+++ b/include/xen/interface/io/console.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/******************************************************************************
* console.h
*
diff --git a/include/xen/interface/io/protocols.h b/include/xen/interface/io/protocols.h
index 545a14ba0bb3..6a89dc1bf225 100644
--- a/include/xen/interface/io/protocols.h
+++ b/include/xen/interface/io/protocols.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __XEN_PROTOCOLS_H__
#define __XEN_PROTOCOLS_H__
diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h
index e547088ceb0e..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
*
diff --git a/include/xen/interface/io/xenbus.h b/include/xen/interface/io/xenbus.h
index 9fda532973a5..aaf2951b1cce 100644
--- a/include/xen/interface/io/xenbus.h
+++ b/include/xen/interface/io/xenbus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*****************************************************************************
* xenbus.h
*
diff --git a/include/xen/interface/io/xs_wire.h b/include/xen/interface/io/xs_wire.h
index 794deb07eb53..1517c7e93a3a 100644
--- a/include/xen/interface/io/xs_wire.h
+++ b/include/xen/interface/io/xs_wire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Details of the "wire" protocol between Xen Store Daemon and client
* library or guest kernel.