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From:   Ilia Mirkin <imirkin@alum.mit.edu>
Date:   Mon, 8 Jul 2019 15:21:44 -0400
Message-ID: <CAKb7UvhoW2F5LSf4B=vJhLykPCme_ixwbUBup_sBXjoQa72Fzw@mail.gmail.com>
Subject: Re: [PATCH v2] gpu/drm_memory: fix a few warnings
To:     Qian Cai <cai@lca.pw>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Sean Paul <sean@poorly.run>, joe@perches.com,
        linux-spdx@archiver.kernel.org,
        dri-devel <dri-devel@lists.freedesktop.org>,
        LKML <linux-kernel@vger.kernel.org>
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On Mon, Jul 8, 2019 at 2:06 PM Qian Cai <cai@lca.pw> wrote:
>
> The opening comment mark "/**" is reserved for kernel-doc comments, so
> it will generate a warning with "make W=1".
>
> drivers/gpu/drm/drm_memory.c:2: warning: Cannot understand  * \file
> drm_memory.c
>
> Also, silence a checkpatch warning by adding a license identfiter where
> it indicates the MIT license further down in the source file.
>
> WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
>
> It becomes redundant to add both an SPDX identifier and have a
> description of the license in the comment block at the top, so remove
> the later.
>
> Signed-off-by: Qian Cai <cai@lca.pw>
> ---
>
> v2: remove the redundant description of the license.
>
>  drivers/gpu/drm/drm_memory.c | 22 ++--------------------
>  1 file changed, 2 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c
> index 132fef8ff1b6..86a11fc8e954 100644
> --- a/drivers/gpu/drm/drm_memory.c
> +++ b/drivers/gpu/drm/drm_memory.c
> @@ -1,4 +1,5 @@
> -/**
> +// SPDX-License-Identifier: MIT
> +/*
>   * \file drm_memory.c
>   * Memory management wrappers for DRM
>   *
> @@ -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

This talks about VA Linux Systems and/or its suppliers, while the MIT
licence talks about authors or copyright holders.

Are such transformations OK to just do?

  -ilia

> - * 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.
>   */
>
>  #include <linux/highmem.h>
> --
> 1.8.3.1
>