Re: [PATCH v2 2/2] s390/virtio: add BSD license to virtio-ccw

[Heiko Carstens <heiko.carstens@de.ibm.com>]

On Fri, Nov 24, 2017 at 07:21:09AM +0200, Michael S. Tsirkin wrote:
> The original intent of the virtio header relicensing
> from 2008 was to make sure anyone can implement compatible
> devices/drivers. The virtio-ccw was omitted by mistake.
> 
> We have an ack from the only contributor as well as the
> maintainer from IBM, so it's not too late to fix that.
> 
> Make it dual-licensed with GPLv2, as the whole kernel is GPL2.
> 
> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
> Acked-by: Cornelia Huck <cohuck@redhat.com>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
>  arch/s390/include/uapi/asm/virtio-ccw.h | 32 +++++++++++++++++++++++++++-----
>  1 file changed, 27 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/s390/include/uapi/asm/virtio-ccw.h b/arch/s390/include/uapi/asm/virtio-ccw.h
> index 967aad3..41c267e 100644
> --- a/arch/s390/include/uapi/asm/virtio-ccw.h
> +++ b/arch/s390/include/uapi/asm/virtio-ccw.h
> @@ -1,14 +1,36 @@
> -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
> +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note or BSD-3-Clause */

Could you change this and use a correct SPDX License Expression format, please?

 SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)

>  /*
>   * Definitions for virtio-ccw devices.
>   *
>   * Copyright IBM Corp. 2013
>   *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License (version 2 only)
> - * as published by the Free Software Foundation.
> - *
>   *  Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
> + *
> + * This header is BSD licensed so anyone can use the definitions to implement
> + * compatible drivers/servers.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + * 1. Redistributions of source code must retain the above copyright
> + *    notice, this list of conditions and the following disclaimer.
> + * 2. 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.
> + * 3. Neither the name of IBM nor the names of its contributors
> + *    may be used to endorse or promote products derived from this software
> + *    without specific prior written permission.
> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 IBM 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.

Is there any reason to add the whole BSD 3 clause license text? I'd prefer
if it would be just the simple new SPDX-License-Identifier above.