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

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On 01/11/2018 02:33 PM, Laurent Pinchart wrote:
> Hi Shuah,
> 
> On Thursday, 11 January 2018 22:44:08 EET Shuah Khan wrote:
>> On 01/11/2018 11:42 AM, Laurent Pinchart wrote:
>>> On Thursday, 11 January 2018 17:45:15 EET Shuah Khan wrote:
>>>> On 01/11/2018 05:55 AM, Laurent Pinchart wrote:
>>>>> 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@xxxxxxxxxxxxxxx>
>>>>>> ---
>>>>>>
>>>>>>  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.
>>>
>>> Personally I prefer the /* ... */ comment style, but I noticed that Greg
>>> used // in his large patch the adds SPDX license headers, so I think we
>>> should follow the established practice. I'll let you investigate to find
>>> what is preferred :)
>>
>> Yeah /*...*/ is my preferred as well. Hence  the autopilot change I made
>> in the first place. I redid a couple of patches already to follow the
>> // convention and I can do the same here.
>>
>>>>>>  /*
>>>>>>  
>>>>>>   * Media Controller ancillary functions
>>>>>>   *
>>>>>>
>>>>>> @@ -5,16 +6,6 @@
>>>>>>
>>>>>>   * Copyright (C) 2016 Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
>>>>>>   * 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?
>>>
>>> Yes, that's my concern. I'm personally fine with GPL-2.0-only, but you'll
>>> have a hard time contacting all the other copyright holders if you want
>>> to relicense this. Good luck getting hold of the appropriate legal
>>> department at Nokia :-)
>>
>> Yeah. I don't think it is beneficial to continue this effort. I am going to
>> not pursue the patch at this file. Thanks for the review.
> 
> How about just using
> 
> // SPDX-License-Identifier: GPL-2.0-or-later
> 
> ? That is equivalent to the current license text.
> 

Hmm. Yes GPL-2.0-or-later would maintain the intent and doesn't change
the license. I can send v2 with that and see anybody objects to it.

thanks,
-- Shuah



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