Re: [Batch 5 - patch 04/25] treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 104

[Richard Fontana <rfontana@redhat.com>]

Reviewed-by: Richard Fontana <rfontana@redhat.com>

On Thu, May 23, 2019 at 5:29 AM Thomas Gleixner <tglx@linutronix.de> wrote:
>
> Based on 1 normalized pattern(s):
>
>   this sctp implementation is free software you can redistribute it
>   and or modify it under the terms of the gnu general public license
>   as published by the free software foundation either version 2 or at
>   your option any later version this sctp implementation 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 you should have received a copy of the gnu general
>   public license along with gnu cc see the file copying if not see
>   http www gnu org licenses
>
> extracted by the scancode license scanner the SPDX license identifier
>
>   GPL-2.0-or-later
>
> has been chosen to replace the boilerplate/reference in 42 file(s).
>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> ---
> https://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-spdx.git/commit/?h=batch5&id=d14e4ff614c0
> ---
>  include/linux/sctp.h                 |   17 +----------------
>  include/net/sctp/auth.h              |   17 +----------------
>  include/net/sctp/command.h           |   17 +----------------
>  include/net/sctp/constants.h         |   17 +----------------
>  include/net/sctp/sctp.h              |   17 +----------------
>  include/net/sctp/sm.h                |   17 +----------------
>  include/net/sctp/stream_interleave.h |   17 +----------------
>  include/net/sctp/stream_sched.h      |   17 +----------------
>  include/net/sctp/structs.h           |   17 +----------------
>  include/net/sctp/tsnmap.h            |   17 +----------------
>  include/net/sctp/ulpevent.h          |   17 +----------------
>  include/net/sctp/ulpqueue.h          |   17 +----------------
>  net/sctp/associola.c                 |   17 +----------------
>  net/sctp/auth.c                      |   17 +----------------
>  net/sctp/bind_addr.c                 |   17 +----------------
>  net/sctp/chunk.c                     |   17 +----------------
>  net/sctp/debug.c                     |   17 +----------------
>  net/sctp/diag.c                      |   17 +----------------
>  net/sctp/input.c                     |   17 +----------------
>  net/sctp/inqueue.c                   |   17 +----------------
>  net/sctp/ipv6.c                      |   17 +----------------
>  net/sctp/objcnt.c                    |   17 +----------------
>  net/sctp/output.c                    |   17 +----------------
>  net/sctp/outqueue.c                  |   17 +----------------
>  net/sctp/primitive.c                 |   17 +----------------
>  net/sctp/proc.c                      |   17 +----------------
>  net/sctp/protocol.c                  |   17 +----------------
>  net/sctp/sm_make_chunk.c             |   17 +----------------
>  net/sctp/sm_sideeffect.c             |   17 +----------------
>  net/sctp/sm_statefuns.c              |   17 +----------------
>  net/sctp/sm_statetable.c             |   17 +----------------
>  net/sctp/socket.c                    |   17 +----------------
>  net/sctp/stream.c                    |   17 +----------------
>  net/sctp/stream_interleave.c         |   17 +----------------
>  net/sctp/stream_sched.c              |   17 +----------------
>  net/sctp/stream_sched_prio.c         |   17 +----------------
>  net/sctp/stream_sched_rr.c           |   17 +----------------
>  net/sctp/sysctl.c                    |   17 +----------------
>  net/sctp/transport.c                 |   17 +----------------
>  net/sctp/tsnmap.c                    |   17 +----------------
>  net/sctp/ulpevent.c                  |   17 +----------------
>  net/sctp/ulpqueue.c                  |   17 +----------------
>  42 files changed, 42 insertions(+), 672 deletions(-)
>
> --- a/include/linux/sctp.h
> +++ b/include/linux/sctp.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel reference Implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -10,22 +11,6 @@
>   *
>   * Various protocol defined structures.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/auth.h
> +++ b/include/net/sctp/auth.h
> @@ -1,24 +1,9 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel implementation
>   * (C) Copyright 2007 Hewlett-Packard Development Company, L.P.
>   *
>   * This file is part of the SCTP kernel implementation
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/command.h
> +++ b/include/net/sctp/command.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel Implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (C) 1999-2001 Cisco, Motorola
> @@ -6,22 +7,6 @@
>   *
>   * These are the definitions needed for the command object.
>   *
> - * This SCTP implementation  is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation  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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/constants.h
> +++ b/include/net/sctp/constants.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -6,22 +7,6 @@
>   *
>   * This file is part of the SCTP kernel implementation
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/sctp.h
> +++ b/include/net/sctp/sctp.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -8,22 +9,6 @@
>   *
>   * The base lksctp header.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/sm.h
> +++ b/include/net/sctp/sm.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -8,22 +9,6 @@
>   *
>   * These are definitions needed by the state machine.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email addresses:
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/stream_interleave.h
> +++ b/include/net/sctp/stream_interleave.h
> @@ -1,25 +1,10 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel implementation
>   * (C) Copyright Red Hat Inc. 2017
>   *
>   * These are definitions used by the stream schedulers, defined in RFC
>   * draft ndata (https://tools.ietf.org/html/draft-ietf-tsvwg-sctp-ndata-11)
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation  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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email addresses:
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/stream_sched.h
> +++ b/include/net/sctp/stream_sched.h
> @@ -1,25 +1,10 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel implementation
>   * (C) Copyright Red Hat Inc. 2017
>   *
>   * These are definitions used by the stream schedulers, defined in RFC
>   * draft ndata (https://tools.ietf.org/html/draft-ietf-tsvwg-sctp-ndata-11)
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation  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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email addresses:
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/structs.h
> +++ b/include/net/sctp/structs.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -6,22 +7,6 @@
>   *
>   * This file is part of the SCTP kernel implementation
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email addresses:
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/tsnmap.h
> +++ b/include/net/sctp/tsnmap.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -9,22 +10,6 @@
>   * These are the definitions needed for the tsnmap type.  The tsnmap is used
>   * to track out of order TSNs received.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/ulpevent.h
> +++ b/include/net/sctp/ulpevent.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -12,22 +13,6 @@
>   *
>   * This file is part of the SCTP kernel implementation
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/include/net/sctp/ulpqueue.h
> +++ b/include/net/sctp/ulpqueue.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -11,22 +12,6 @@
>   * and the core SCTP state machine.  This is the component which handles
>   * reassembly and ordering.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation  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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email addresses:
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/associola.c
> +++ b/net/sctp/associola.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -9,22 +10,6 @@
>   *
>   * This module provides the abstraction for an SCTP association.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/auth.c
> +++ b/net/sctp/auth.c
> @@ -1,24 +1,9 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright 2007 Hewlett-Packard Development Company, L.P.
>   *
>   * This file is part of the SCTP kernel implementation
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/bind_addr.c
> +++ b/net/sctp/bind_addr.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2003
>   * Copyright (c) Cisco 1999,2000
> @@ -8,22 +9,6 @@
>   *
>   * A collection class to handle the storage of transport addresses.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/chunk.c
> +++ b/net/sctp/chunk.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2003, 2004
>   *
> @@ -5,22 +6,6 @@
>   *
>   * This file contains the code relating the chunk abstraction.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/debug.c
> +++ b/net/sctp/debug.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -9,22 +10,6 @@
>   * This file converts numerical ID value to alphabetical names for SCTP
>   * terms such as chunk type, parameter time, event type, etc.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/diag.c
> +++ b/net/sctp/diag.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright Red Hat Inc. 2017
>   *
> @@ -5,22 +6,6 @@
>   *
>   * These functions implement sctp diag support.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email addresched(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/input.c
> +++ b/net/sctp/input.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * Copyright (c) 1999-2000 Cisco, Inc.
>   * Copyright (c) 1999-2001 Motorola, Inc.
> @@ -10,22 +11,6 @@
>   *
>   * These functions handle all input from the IP layer into SCTP.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/inqueue.c
> +++ b/net/sctp/inqueue.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * Copyright (c) 1999-2000 Cisco, Inc.
>   * Copyright (c) 1999-2001 Motorola, Inc.
> @@ -11,22 +12,6 @@
>   * (which might be bundles or fragments of chunks) and out of which you
>   * pop SCTP whole chunks.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/ipv6.c
> +++ b/net/sctp/ipv6.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2002, 2004
>   * Copyright (c) 2001 Nokia, Inc.
> @@ -8,22 +9,6 @@
>   *
>   * SCTP over IPv6.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/objcnt.c
> +++ b/net/sctp/objcnt.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   *
> @@ -7,22 +8,6 @@
>   * object allocations/deallocations for types instrumented for this
>   * via the proc fs.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/output.c
> +++ b/net/sctp/output.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -7,22 +8,6 @@
>   *
>   * These functions handle output processing.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/outqueue.c
> +++ b/net/sctp/outqueue.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -9,22 +10,6 @@
>   * These functions implement the sctp_outq class.   The outqueue handles
>   * bundling and queueing of outgoing SCTP chunks.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/primitive.c
> +++ b/net/sctp/primitive.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * Copyright (c) 1999-2000 Cisco, Inc.
>   * Copyright (c) 1999-2001 Motorola, Inc.
> @@ -10,22 +11,6 @@
>   * functions--this file is the functions which populate the struct proto
>   * for SCTP which is the BOTTOM of the sockets interface.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/proc.c
> +++ b/net/sctp/proc.c
> @@ -1,24 +1,9 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * Copyright (c) 2003 International Business Machines, Corp.
>   *
>   * This file is part of the SCTP kernel implementation
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/protocol.c
> +++ b/net/sctp/protocol.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -10,22 +11,6 @@
>   *
>   * Initialization/cleanup for SCTP protocol support.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/sm_make_chunk.c
> +++ b/net/sctp/sm_make_chunk.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -10,22 +11,6 @@
>   * to implement the state operations.  These functions implement the
>   * steps which require modifying existing data structures.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/sm_sideeffect.c
> +++ b/net/sctp/sm_sideeffect.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999 Cisco, Inc.
> @@ -9,22 +10,6 @@
>   * to implement that state operations.  These functions implement the
>   * steps which require modifying existing data structures.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/sm_statefuns.c
> +++ b/net/sctp/sm_statefuns.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -9,22 +10,6 @@
>   *
>   * These are the state functions for the state machine.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/sm_statetable.c
> +++ b/net/sctp/sm_statetable.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -9,22 +10,6 @@
>   *
>   * These are the state tables for the SCTP state machine.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/socket.c
> +++ b/net/sctp/socket.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -15,22 +16,6 @@
>   * functions--this file is the functions which populate the struct proto
>   * for SCTP which is the BOTTOM of the sockets interface.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/stream.c
> +++ b/net/sctp/stream.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -8,22 +9,6 @@
>   *
>   * This file contains sctp stream maniuplation primitives and helpers.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/stream_interleave.c
> +++ b/net/sctp/stream_interleave.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright Red Hat Inc. 2017
>   *
> @@ -6,22 +7,6 @@
>   * These functions implement sctp stream message interleaving, mostly
>   * including I-DATA and I-FORWARD-TSN chunks process.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email addresched(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/stream_sched.c
> +++ b/net/sctp/stream_sched.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright Red Hat Inc. 2017
>   *
> @@ -5,22 +6,6 @@
>   *
>   * These functions manipulate sctp stream queue/scheduling.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email addresched(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/stream_sched_prio.c
> +++ b/net/sctp/stream_sched_prio.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright Red Hat Inc. 2017
>   *
> @@ -5,22 +6,6 @@
>   *
>   * These functions manipulate sctp stream queue/scheduling.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email addresched(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/stream_sched_rr.c
> +++ b/net/sctp/stream_sched_rr.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright Red Hat Inc. 2017
>   *
> @@ -5,22 +6,6 @@
>   *
>   * These functions manipulate sctp stream queue/scheduling.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email addresched(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/sysctl.c
> +++ b/net/sctp/sysctl.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2002, 2004
>   * Copyright (c) 2002 Intel Corp.
> @@ -6,22 +7,6 @@
>   *
>   * Sysctl related interfaces for SCTP.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/transport.c
> +++ b/net/sctp/transport.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * Copyright (c) 1999-2000 Cisco, Inc.
>   * Copyright (c) 1999-2001 Motorola, Inc.
> @@ -11,22 +12,6 @@
>   * a remote transport address.  For local transport addresses, we just use
>   * union sctp_addr.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/tsnmap.c
> +++ b/net/sctp/tsnmap.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -8,22 +9,6 @@
>   *
>   * These functions manipulate sctp tsn mapping array.
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/ulpevent.c
> +++ b/net/sctp/ulpevent.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -9,22 +10,6 @@
>   * These functions manipulate an sctp event.   The struct ulpevent is used
>   * to carry notifications and data to the ULP (sockets).
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
> --- a/net/sctp/ulpqueue.c
> +++ b/net/sctp/ulpqueue.c
> @@ -1,3 +1,4 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /* SCTP kernel implementation
>   * (C) Copyright IBM Corp. 2001, 2004
>   * Copyright (c) 1999-2000 Cisco, Inc.
> @@ -8,22 +9,6 @@
>   *
>   * This abstraction carries sctp events to the ULP (sockets).
>   *
> - * This SCTP implementation is free software;
> - * you can redistribute it and/or modify it under the terms of
> - * the GNU General Public License as published by
> - * the Free Software Foundation; either version 2, or (at your option)
> - * any later version.
> - *
> - * This SCTP implementation 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.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with GNU CC; see the file COPYING.  If not, see
> - * <http://www.gnu.org/licenses/>.
> - *
>   * Please send any bug reports or fixes you make to the
>   * email address(es):
>   *    lksctp developers <linux-sctp@vger.kernel.org>
>
>


-- 
Richard Fontana
Senior Commercial Counsel
Red Hat, Inc.