Re: [PATCH 1/3] drm: uapi: Use SPDX in DRM core uAPI headers

[Daniel Vetter <daniel@ffwll.ch>]

On Sun, Jun 21, 2020 at 05:07:01AM +0300, Laurent Pinchart wrote:
> The DRM core uAPI headers are licensed under the MIT license, and carry
> copies of the license with slight variations. Replace them with SPDX
> headers.
> 
> Following a discussion with Daniel Vetter on this topic, add a
> clarification in the drm-uapi.rst file that independent closed-source
> userspace implementations of software using the DRM uAPI are accepted,
> as allowed by the MIT license.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

> ---
>  Documentation/gpu/drm-uapi.rst |  4 ++++
>  include/uapi/drm/drm.h         | 20 +-------------------
>  include/uapi/drm/drm_fourcc.h  | 20 +-------------------
>  include/uapi/drm/drm_mode.h    | 19 +------------------
>  include/uapi/drm/drm_sarea.h   | 20 +-------------------
>  5 files changed, 8 insertions(+), 75 deletions(-)
> 
> diff --git a/Documentation/gpu/drm-uapi.rst b/Documentation/gpu/drm-uapi.rst
> index 56fec6ed1ad8..de2ecc76dd6c 100644
> --- a/Documentation/gpu/drm-uapi.rst
> +++ b/Documentation/gpu/drm-uapi.rst
> @@ -107,6 +107,10 @@ is already rather painful for the DRM subsystem, with multiple different uAPIs
>  for the same thing co-existing. If we add a few more complete mistakes into the
>  mix every year it would be entirely unmanageable.
>  
> +The DRM subsystem has however no concern with independent closed-source
> +userspace implementations. To officialize that position, the DRM uAPI headers
> +are covered by the MIT license.
> +
>  .. _drm_render_node:
>  
>  Render nodes
> diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h
> index 808b48a93330..14d57361e580 100644
> --- a/include/uapi/drm/drm.h
> +++ b/include/uapi/drm/drm.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: MIT */
>  /**
>   * \file drm.h
>   * Header for the Direct Rendering Manager
> @@ -12,25 +13,6 @@
>   * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
>   * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
>   * All rights reserved.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice (including the next
> - * paragraph) shall be included in all copies or substantial portions of the
> - * Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
> - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
> - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> - * OTHER DEALINGS IN THE SOFTWARE.
>   */
>  
>  #ifndef _DRM_H_
> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> index 490143500a50..d2c4a597620f 100644
> --- a/include/uapi/drm/drm_fourcc.h
> +++ b/include/uapi/drm/drm_fourcc.h
> @@ -1,24 +1,6 @@
> +/* SPDX-License-Identifier: MIT */
>  /*
>   * Copyright 2011 Intel Corporation
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice (including the next
> - * paragraph) shall be included in all copies or substantial portions of the
> - * Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
> - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
> - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> - * OTHER DEALINGS IN THE SOFTWARE.
>   */
>  
>  #ifndef DRM_FOURCC_H
> diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
> index 735c8cfdaaa1..c34a544fdf29 100644
> --- a/include/uapi/drm/drm_mode.h
> +++ b/include/uapi/drm/drm_mode.h
> @@ -1,27 +1,10 @@
> +/* SPDX-License-Identifier: MIT */
>  /*
>   * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
>   * Copyright (c) 2007 Jakob Bornecrantz <wallbraker@gmail.com>
>   * Copyright (c) 2008 Red Hat Inc.
>   * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
>   * Copyright (c) 2007-2008 Intel Corporation
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
> - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
> - * IN THE SOFTWARE.
>   */
>  
>  #ifndef _DRM_MODE_H
> diff --git a/include/uapi/drm/drm_sarea.h b/include/uapi/drm/drm_sarea.h
> index a951ced60ebe..1e38d028332d 100644
> --- a/include/uapi/drm/drm_sarea.h
> +++ b/include/uapi/drm/drm_sarea.h
> @@ -1,3 +1,4 @@
> +/* SPDX-License-Identifier: MIT */
>  /**
>   * \file drm_sarea.h
>   * \brief SAREA definitions
> @@ -8,25 +9,6 @@
>  /*
>   * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
>   * All Rights Reserved.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice (including the next
> - * paragraph) shall be included in all copies or substantial portions of the
> - * Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
> - * TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
> - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> - * OTHER DEALINGS IN THE SOFTWARE.
>   */
>  
>  #ifndef _DRM_SAREA_H_
> -- 
> Regards,
> 
> Laurent Pinchart
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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