diff --git a/drivers/staging/android/ashmem.h b/drivers/staging/android/ashmem.h
index 60d7208..1a47817 100644
--- a/drivers/staging/android/ashmem.h
+++ b/drivers/staging/android/ashmem.h
@@ -1,13 +1,9 @@
-// SPDX-License-Identifier: (GPL-2.0 OR Apache-2.0)
+/* SPDX-License-Identifier: GPL-2.0 OR Apache-2.0 */
 /*
  * include/linux/ashmem.h
  *
  * Copyright 2008 Google Inc.
  * Author: Robert Love
- *
- * This file is dual licensed.  It may be redistributed and/or modified
- * under the terms of the Apache 2.0 License OR version 2 of the GNU
- * General Public License.
  */
 
 #ifndef _LINUX_ASHMEM_H
diff --git a/drivers/staging/android/uapi/ashmem.h b/drivers/staging/android/uapi/ashmem.h
index 5b531af..5442e00 100644
--- a/drivers/staging/android/uapi/ashmem.h
+++ b/drivers/staging/android/uapi/ashmem.h
@@ -1,13 +1,9 @@
-// SPDX-License-Identifier: (GPL-2.0 OR Apache-2.0)
+/* SPDX-License-Identifier: GPL-2.0 OR Apache-2.0 */
 /*
  * drivers/staging/android/uapi/ashmem.h
  *
  * Copyright 2008 Google Inc.
  * Author: Robert Love
- *
- * This file is dual licensed.  It may be redistributed and/or modified
- * under the terms of the Apache 2.0 License OR version 2 of the GNU
- * General Public License.
  */
 
 #ifndef _UAPI_LINUX_ASHMEM_H
diff --git a/drivers/staging/android/uapi/vsoc_shm.h b/drivers/staging/android/uapi/vsoc_shm.h
index 741b138..6291fb2 100644
--- a/drivers/staging/android/uapi/vsoc_shm.h
+++ b/drivers/staging/android/uapi/vsoc_shm.h
@@ -1,15 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2017 Google, Inc.
  *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef _UAPI_LINUX_VSOC_SHM_H
diff --git a/drivers/staging/android/vsoc.c b/drivers/staging/android/vsoc.c
index 954ed2c..6ef7a01 100644
--- a/drivers/staging/android/vsoc.c
+++ b/drivers/staging/android/vsoc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/android/staging/vsoc.c
  *
@@ -7,16 +8,6 @@
  *
  * Author: ghartman@google.com
  *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- *
  * Based on drivers/char/kvm_ivshmem.c - driver for KVM Inter-VM shared memory
  *         Copyright 2009 Cam Macdonell <cam@cs.ualberta.ca>
  *