global: add SPDX tags to all files

It's good to have SPDX identifiers in all files as the Linux kernel
developers are working to add these identifiers to all files.

Update all files with the correct SPDX license identifier based on the license
text of the project or based on the license in the file itself.  The SPDX
identifier is a legally binding shorthand, which can be used instead of the
full boiler plate text.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Modified-by: Jason A. Donenfeld <Jason@zx2c4.com>

16 files changed, 57 insertions, 247 deletions

diff --git a/src/crypto/blake2s-x86_64.S b/src/crypto/blake2s-x86_64.S
index d1e0c03..3827d2e 100644
--- a/src/crypto/blake2s-x86_64.S
+++ b/src/crypto/blake2s-x86_64.S
@@ -1,6 +1,7 @@
-/*
- * Copyright (C) 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
- * Based on algorithms from Samuel Neves <sneves@dei.uc.pt>
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2017 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
  */
 
 #include <linux/linkage.h>
diff --git a/src/crypto/blake2s.c b/src/crypto/blake2s.c
index d0a121a..1f4052d 100644
--- a/src/crypto/blake2s.c
+++ b/src/crypto/blake2s.c
@@ -1,6 +1,8 @@
-/* Original author: Samuel Neves <sneves@dei.uc.pt>
+/* SPDX-License-Identifier: GPL-2.0
  *
  * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * Original author: Samuel Neves <sneves@dei.uc.pt>
  */
 
 #include "blake2s.h"
diff --git a/src/crypto/blake2s.h b/src/crypto/blake2s.h
index 9ed53ea..ac60cfe 100644
--- a/src/crypto/blake2s.h
+++ b/src/crypto/blake2s.h
@@ -1,4 +1,7 @@
-/* Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
 
 #ifndef _WG_BLAKE2S_H
 #define _WG_BLAKE2S_H
diff --git a/src/crypto/chacha20-arm.S b/src/crypto/chacha20-arm.S
index 5cd4357..ac7a9ea 100644
--- a/src/crypto/chacha20-arm.S
+++ b/src/crypto/chacha20-arm.S
@@ -1,33 +1,7 @@
-/* Copyright 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+/* SPDX-License-Identifier: OpenSSL OR (BSD-3-Clause OR GPL-2.0)
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain copyright notices,
- * this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- * - Neither the name of the CRYPTOGAMS nor the names of its
- * copyright holder and contributors may be used to endorse or
- * promote products derived from this software without specific
- * prior written permission.
- * ALTERNATIVELY, provided that this notice is retained in full, this
- * product may be distributed under the terms of the GNU General Public
- * License (GPL), in which case the provisions of the GPL apply INSTEAD OF
- * those given above.
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include <linux/linkage.h>
diff --git a/src/crypto/chacha20-arm64.S b/src/crypto/chacha20-arm64.S
index 6347adb..8acef8e 100644
--- a/src/crypto/chacha20-arm64.S
+++ b/src/crypto/chacha20-arm64.S
@@ -1,33 +1,7 @@
-/* Copyright 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+/* SPDX-License-Identifier: OpenSSL OR (BSD-3-Clause OR GPL-2.0)
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain copyright notices,
- * this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- * - Neither the name of the CRYPTOGAMS nor the names of its
- * copyright holder and contributors may be used to endorse or
- * promote products derived from this software without specific
- * prior written permission.
- * ALTERNATIVELY, provided that this notice is retained in full, this
- * product may be distributed under the terms of the GNU General Public
- * License (GPL), in which case the provisions of the GPL apply INSTEAD OF
- * those given above.
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include <linux/linkage.h>
diff --git a/src/crypto/chacha20-x86_64.S b/src/crypto/chacha20-x86_64.S
index 4a01761..d69625f 100644
--- a/src/crypto/chacha20-x86_64.S
+++ b/src/crypto/chacha20-x86_64.S
@@ -1,34 +1,8 @@
-/* Copyright 2017 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
- * Copyright 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+/* SPDX-License-Identifier: OpenSSL OR (BSD-3-Clause OR GPL-2.0)
+ *
+ * Copyright (C) 2017 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain copyright notices,
- * this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- * - Neither the name of the CRYPTOGAMS nor the names of its
- * copyright holder and contributors may be used to endorse or
- * promote products derived from this software without specific
- * prior written permission.
- * ALTERNATIVELY, provided that this notice is retained in full, this
- * product may be distributed under the terms of the GNU General Public
- * License (GPL), in which case the provisions of the GPL apply INSTEAD OF
- * those given above.
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include <linux/linkage.h>
diff --git a/src/crypto/chacha20poly1305.c b/src/crypto/chacha20poly1305.c
index 2fa94c7..a4184d3 100644
--- a/src/crypto/chacha20poly1305.c
+++ b/src/crypto/chacha20poly1305.c
@@ -1,34 +1,8 @@
-/* Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+/* SPDX-License-Identifier: OpenSSL OR (BSD-3-Clause OR GPL-2.0)
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  * Copyright 2015 Martin Willi.
  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain copyright notices,
- * this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- * - Neither the name of the CRYPTOGAMS nor the names of its
- * copyright holder and contributors may be used to endorse or
- * promote products derived from this software without specific
- * prior written permission.
- * ALTERNATIVELY, provided that this notice is retained in full, this
- * product may be distributed under the terms of the GNU General Public
- * License (GPL), in which case the provisions of the GPL apply INSTEAD OF
- * those given above.
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "chacha20poly1305.h"
diff --git a/src/crypto/chacha20poly1305.h b/src/crypto/chacha20poly1305.h
index 991755d..1e54594 100644
--- a/src/crypto/chacha20poly1305.h
+++ b/src/crypto/chacha20poly1305.h
@@ -1,4 +1,7 @@
-/* Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
 
 #ifndef _WG_CHACHA20POLY1305_H
 #define _WG_CHACHA20POLY1305_H
diff --git a/src/crypto/curve25519-arm.S b/src/crypto/curve25519-arm.S
index 165675a..0696926 100644
--- a/src/crypto/curve25519-arm.S
+++ b/src/crypto/curve25519-arm.S
@@ -1,5 +1,7 @@
-/*
- * Copyright (C) 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
  * Based on algorithms from Daniel J. Bernstein and Peter Schwabe.
  */
 
diff --git a/src/crypto/curve25519-x86_64.S b/src/crypto/curve25519-x86_64.S
index 2407ff4..4d26926 100644
--- a/src/crypto/curve25519-x86_64.S
+++ b/src/crypto/curve25519-x86_64.S
@@ -1,5 +1,7 @@
-/*
- * Copyright (C) 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
  * Based on algorithms from Tung Chou <blueprint@crypto.tw>
  */
 
diff --git a/src/crypto/curve25519.c b/src/crypto/curve25519.c
index 6dbd74b..adf6a0b 100644
--- a/src/crypto/curve25519.c
+++ b/src/crypto/curve25519.c
@@ -1,7 +1,9 @@
-/* Original author: Adam Langley <agl@imperialviolet.org>
+/* SPDX-License-Identifier: GPL-2.0
  *
- * Copyright 2008 Google Inc. All Rights Reserved.
+ * Copyright (C) 2008 Google Inc. All Rights Reserved.
  * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ *
+ * Original author: Adam Langley <agl@imperialviolet.org>
  */
 
 #include "curve25519.h"
diff --git a/src/crypto/curve25519.h b/src/crypto/curve25519.h
index 800cefa..40f50ae 100644
--- a/src/crypto/curve25519.h
+++ b/src/crypto/curve25519.h
@@ -1,4 +1,7 @@
-/* Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
 
 #ifndef _WG_CURVE25519_H
 #define _WG_CURVE25519_H
diff --git a/src/crypto/poly1305-arm.S b/src/crypto/poly1305-arm.S
index ca22481..75e7cab 100644
--- a/src/crypto/poly1305-arm.S
+++ b/src/crypto/poly1305-arm.S
@@ -1,33 +1,7 @@
-/* Copyright 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+/* SPDX-License-Identifier: OpenSSL OR (BSD-3-Clause OR GPL-2.0)
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain copyright notices,
- * this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- * - Neither the name of the CRYPTOGAMS nor the names of its
- * copyright holder and contributors may be used to endorse or
- * promote products derived from this software without specific
- * prior written permission.
- * ALTERNATIVELY, provided that this notice is retained in full, this
- * product may be distributed under the terms of the GNU General Public
- * License (GPL), in which case the provisions of the GPL apply INSTEAD OF
- * those given above.
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include <linux/linkage.h>
diff --git a/src/crypto/poly1305-arm64.S b/src/crypto/poly1305-arm64.S
index 13c7a6b..ef54afd 100644
--- a/src/crypto/poly1305-arm64.S
+++ b/src/crypto/poly1305-arm64.S
@@ -1,33 +1,7 @@
-/* Copyright 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+/* SPDX-License-Identifier: OpenSSL OR (BSD-3-Clause OR GPL-2.0)
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain copyright notices,
- * this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- * - Neither the name of the CRYPTOGAMS nor the names of its
- * copyright holder and contributors may be used to endorse or
- * promote products derived from this software without specific
- * prior written permission.
- * ALTERNATIVELY, provided that this notice is retained in full, this
- * product may be distributed under the terms of the GNU General Public
- * License (GPL), in which case the provisions of the GPL apply INSTEAD OF
- * those given above.
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include <linux/linkage.h>
diff --git a/src/crypto/poly1305-mips64.S b/src/crypto/poly1305-mips64.S
index 5275a8c..26a9a6a 100644
--- a/src/crypto/poly1305-mips64.S
+++ b/src/crypto/poly1305-mips64.S
@@ -1,33 +1,7 @@
-/* Copyright 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+/* SPDX-License-Identifier: OpenSSL OR (BSD-3-Clause OR GPL-2.0)
+ *
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain copyright notices,
- * this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- * - Neither the name of the CRYPTOGAMS nor the names of its
- * copyright holder and contributors may be used to endorse or
- * promote products derived from this software without specific
- * prior written permission.
- * ALTERNATIVELY, provided that this notice is retained in full, this
- * product may be distributed under the terms of the GNU General Public
- * License (GPL), in which case the provisions of the GPL apply INSTEAD OF
- * those given above.
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #if !defined(CONFIG_64BIT)
diff --git a/src/crypto/poly1305-x86_64.S b/src/crypto/poly1305-x86_64.S
index ebe5af3..3450ed7 100644
--- a/src/crypto/poly1305-x86_64.S
+++ b/src/crypto/poly1305-x86_64.S
@@ -1,34 +1,8 @@
-/* Copyright 2017 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
- * Copyright 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+/* SPDX-License-Identifier: OpenSSL OR (BSD-3-Clause OR GPL-2.0)
+ *
+ * Copyright (C) 2017 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
+ * Copyright (C) 2015-2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain copyright notices,
- * this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- * - Neither the name of the CRYPTOGAMS nor the names of its
- * copyright holder and contributors may be used to endorse or
- * promote products derived from this software without specific
- * prior written permission.
- * ALTERNATIVELY, provided that this notice is retained in full, this
- * product may be distributed under the terms of the GNU General Public
- * License (GPL), in which case the provisions of the GPL apply INSTEAD OF
- * those given above.
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include <linux/linkage.h>