License cleanup: add SPDX license identifier to uapi header files with a license

Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be.  This makes it hard for
compliance tools to determine the correct license.

Update these files with an SPDX license identifier.  The identifier was
chosen based on the license information in the file.

GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:

   NOTE! This copyright does *not* cover user programs that use kernel
   services by normal system calls - this is merely considered normal use
   of the kernel, and does *not* fall under the heading of "derived work".

This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.

Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier.  The format
is:
        ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)

SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text.  The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.  See the previous patch in this series for the
methodology of how this patch was researched.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

14 files changed, 14 insertions, 0 deletions

diff --git a/include/uapi/sound/asequencer.h b/include/uapi/sound/asequencer.h
index 7b7659a79ac4..a75e14edc957 100644
--- a/include/uapi/sound/asequencer.h
+++ b/include/uapi/sound/asequencer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Main header file for the ALSA sequencer
  *  Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
diff --git a/include/uapi/sound/asoc.h b/include/uapi/sound/asoc.h
index 78014ec56357..69c37ecbff7e 100644
--- a/include/uapi/sound/asoc.h
+++ b/include/uapi/sound/asoc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * uapi/sound/asoc.h -- ALSA SoC Firmware Controls and DAPM
  *
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
index 1949923a40bf..299a822d2c4e 100644
--- a/include/uapi/sound/asound.h
+++ b/include/uapi/sound/asound.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Advanced Linux Sound Architecture - ALSA - Driver
  *  Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>,
diff --git a/include/uapi/sound/asound_fm.h b/include/uapi/sound/asound_fm.h
index c2a4b967d5be..8471f404ff0b 100644
--- a/include/uapi/sound/asound_fm.h
+++ b/include/uapi/sound/asound_fm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef __SOUND_ASOUND_FM_H
 #define __SOUND_ASOUND_FM_H
 
diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/sound/compress_offload.h
index e00d8cbfc628..56d95673ce0f 100644
--- a/include/uapi/sound/compress_offload.h
+++ b/include/uapi/sound/compress_offload.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  compress_offload.h - compress offload header definations
  *
diff --git a/include/uapi/sound/compress_params.h b/include/uapi/sound/compress_params.h
index 9625484a4a2a..3d4d6de66a17 100644
--- a/include/uapi/sound/compress_params.h
+++ b/include/uapi/sound/compress_params.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) AND MIT) */
 /*
  *  compress_params.h - codec types and parameters for compressed data
  *  streaming interface
diff --git a/include/uapi/sound/emu10k1.h b/include/uapi/sound/emu10k1.h
index 5175e166987d..042c5a6f16ee 100644
--- a/include/uapi/sound/emu10k1.h
+++ b/include/uapi/sound/emu10k1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
  *		     Creative Labs, Inc.
diff --git a/include/uapi/sound/hdsp.h b/include/uapi/sound/hdsp.h
index 0909a3843479..5dc0c3db0a4c 100644
--- a/include/uapi/sound/hdsp.h
+++ b/include/uapi/sound/hdsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef __SOUND_HDSP_H
 #define __SOUND_HDSP_H
 
diff --git a/include/uapi/sound/hdspm.h b/include/uapi/sound/hdspm.h
index c4db6f5b306e..a38f3f79beb7 100644
--- a/include/uapi/sound/hdspm.h
+++ b/include/uapi/sound/hdspm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef __SOUND_HDSPM_H
 #define __SOUND_HDSPM_H
 /*
diff --git a/include/uapi/sound/sb16_csp.h b/include/uapi/sound/sb16_csp.h
index 3b96907e2afb..e64851481d88 100644
--- a/include/uapi/sound/sb16_csp.h
+++ b/include/uapi/sound/sb16_csp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
  *                        Takashi Iwai <tiwai@suse.de>
diff --git a/include/uapi/sound/sfnt_info.h b/include/uapi/sound/sfnt_info.h
index 1bce7fd1725f..c9a810a6ef48 100644
--- a/include/uapi/sound/sfnt_info.h
+++ b/include/uapi/sound/sfnt_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef __SOUND_SFNT_INFO_H
 #define __SOUND_SFNT_INFO_H
 
diff --git a/include/uapi/sound/snd_sst_tokens.h b/include/uapi/sound/snd_sst_tokens.h
index f691e421f5e8..326054a72bc7 100644
--- a/include/uapi/sound/snd_sst_tokens.h
+++ b/include/uapi/sound/snd_sst_tokens.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * snd_sst_tokens.h - Intel SST tokens definition
  *
diff --git a/include/uapi/sound/tlv.h b/include/uapi/sound/tlv.h
index b4df440c015b..be5371f09a62 100644
--- a/include/uapi/sound/tlv.h
+++ b/include/uapi/sound/tlv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
diff --git a/include/uapi/sound/usb_stream.h b/include/uapi/sound/usb_stream.h
index cfe8fba00714..95419d8bbc16 100644
--- a/include/uapi/sound/usb_stream.h
+++ b/include/uapi/sound/usb_stream.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
  *