linux-kernel - Re: [PATCH] media: v4l2-core: v4l2-mc: Add SPDX license identifier

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Date:   Thu, 11 Jan 2018 08:45:15 -0700
From:   Shuah Khan <shuahkh@....samsung.com>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     mchehab@...nel.org, shuah@...nel.org, sakari.ailus@...ux.intel.com,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Shuah Khan <shuahkh@....samsung.com>
Subject: Re: [PATCH] media: v4l2-core: v4l2-mc: Add SPDX license identifier

On 01/11/2018 05:55 AM, Laurent Pinchart wrote:
> Hi Shuah,
> 
> Thank you for the patch.
> 
> On Wednesday, 10 January 2018 18:35:36 EET Shuah Khan wrote:
>> Replace GPL license statement with SPDX GPL-2.0 license identifier.
>>
>> Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
>> ---
>>  drivers/media/v4l2-core/v4l2-mc.c | 11 +----------
>>  1 file changed, 1 insertion(+), 10 deletions(-)
>>
>> diff --git a/drivers/media/v4l2-core/v4l2-mc.c
>> b/drivers/media/v4l2-core/v4l2-mc.c index 303980b71aae..1297132acd4e 100644
>> --- a/drivers/media/v4l2-core/v4l2-mc.c
>> +++ b/drivers/media/v4l2-core/v4l2-mc.c
>> @@ -1,3 +1,4 @@
>> +/* SPDX-License-Identifier: GPL-2.0 */
> 
> The header doesn't match the existing license.

When I added the file, I must have cut and pasted the license statement
from another file. More on this below the deleted license lines.

> 
> Furthermore, unless I'm mistaken, the standard comment style for SPDX headers 
> in the kernel is //, not /* ... */

Looks like we have 3 conventions for SPDX comment style.
/* ... */ for headers and # ... for shell scripts and
// for .c files.

I can update it it and send v2 provided we think the change is inline
with the original license.

> 
>>  /*
>>   * Media Controller ancillary functions
>>   *
>> @@ -5,16 +6,6 @@
>>   * Copyright (C) 2016 Shuah Khan <shuahkh@....samsung.com>
>>   * Copyright (C) 2006-2010 Nokia Corporation
>>   * Copyright (c) 2016 Intel Corporation.
>> - *
>> - *  This program 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 of the License, or
>> - *  (at your option) any later version.

Are you concerned about the "or (at your option) any later version." part
that it doesn't match?

>> - *
>> - *  This program 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.
>>   */
>>
>>  #include <linux/module.h>
> 

thanks,
-- Shuah