debugfs: add SPDX identifiers to all debugfs files
It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.
Update the debugfs files files with the correct SPDX license identifier
based on the license text in the file itself. The SPDX identifier is a
legally binding shorthand, which can be used instead of the full boiler
plate text.
This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Nicolai Stange <nicstange@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 6587234..133be3c 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* file.c - part of debugfs, a tiny little debug file system
*
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 9dca4da..7c107b3 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* inode.c - part of debugfs, a tiny little debug file system
*
diff --git a/fs/debugfs/internal.h b/fs/debugfs/internal.h
index cb1e813..b956754 100644
--- a/fs/debugfs/internal.h
+++ b/fs/debugfs/internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* internal.h - declarations internal to debugfs
*
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 9f821a4..7beab3f 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* debugfs.h - a tiny little debug file system
*
