[PATCH] export,module: add SPDX GPL-2.0 license identifier to headers with no license

Commit b24413180f56 ("License cleanup: add SPDX GPL-2.0 license
identifier to files with no license") took care of a lot of files
without any license information.

These headers were not processed by the tool perhaps because they
contain "GPL" in the code.

I do not see any license boilerplate in them, so they fall back to
GPL version 2 only, which is the project default.

Signed-off-by: Masahiro Yamada <[email protected]>
---

 include/asm-generic/export.h | 1 +
 include/linux/export.h       | 1 +
 include/linux/license.h      | 1 +
 include/linux/module.h       | 7 +++++--
 4 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/export.h b/include/asm-generic/export.h
index a3983e2ce0fd..afddc5442e92 100644
--- a/include/asm-generic/export.h
+++ b/include/asm-generic/export.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef __ASM_GENERIC_EXPORT_H
 #define __ASM_GENERIC_EXPORT_H
 
diff --git a/include/linux/export.h b/include/linux/export.h
index 621158ecd2e2..f86ba7b11c1f 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _LINUX_EXPORT_H
 #define _LINUX_EXPORT_H
 
diff --git a/include/linux/license.h b/include/linux/license.h
index decdbf43cb5c..7cce390f120b 100644
--- a/include/linux/license.h
+++ b/include/linux/license.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef __LICENSE_H
 #define __LICENSE_H
 
diff --git a/include/linux/module.h b/include/linux/module.h
index 6d20895e7739..bd165ba68617 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -1,11 +1,14 @@
-#ifndef _LINUX_MODULE_H
-#define _LINUX_MODULE_H
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Dynamic loading of modules into the kernel.
  *
  * Rewritten by Richard Henderson <[email protected]> Dec 1996
  * Rewritten again by Rusty Russell, 2002
  */
+
+#ifndef _LINUX_MODULE_H
+#define _LINUX_MODULE_H
+
 #include <linux/list.h>
 #include <linux/stat.h>
 #include <linux/compiler.h>
-- 
2.17.1