linux-kernel - Re: [PATCH 04/12] x86/platform/uv: Update UV MMRs for UV5

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Message-ID: <35d4ce27-7a93-c3d5-3c0d-99fff06229c2@hpe.com>
Date:   Tue, 8 Sep 2020 09:20:14 -0700
From:   Mike Travis <mike.travis@....com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, Steve Wahl <steve.wahl@....com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Arnd Bergmann <arnd@...db.de>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Russ Anderson <russ.anderson@....com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Alexandre Chartre <alexandre.chartre@...cle.com>,
        Jian Cai <caij2003@...il.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH 04/12] x86/platform/uv: Update UV MMRs for UV5



On 9/8/2020 8:44 AM, Greg KH wrote:
> On Tue, Sep 08, 2020 at 08:35:37AM -0700, Mike Travis wrote:
>>
>>
>> On 9/8/2020 8:23 AM, Greg KH wrote:
>>> On Mon, Sep 07, 2020 at 01:54:34PM -0500, Mike Travis wrote:
>>>> --- linux.orig/drivers/misc/sgi-gru/grufile.c
>>>> +++ linux/drivers/misc/sgi-gru/grufile.c
>>>> @@ -7,7 +7,8 @@
>>>>     * This file supports the user system call for file open, close, mmap, etc.
>>>>     * This also incudes the driver initialization code.
>>>>     *
>>>> - *  Copyright (c) 2008-2014 Silicon Graphics, Inc.  All Rights Reserved.
>>>> + * Copyright (c) 2018-2020 Hewlett Packard Enterprise Development LP
>>>> + * Copyright (c) 2008-2017 Silicon Graphics, Inc.  All Rights Reserved.
>>>
>>> Please drop all copyright changes from this series, as these do not look
>>> correct at all, sorry.
>>>
>>> You can send an add-on patch for all of that if it's really necessary,
>>> and you get legal approval for it :)
>>
>> I can move them all to a single patch.  The HPE one is straight from their
>> guidance on Copyrights.  The older SGI one is also from SGI's guidance
>> though I'm not sure if I can find it anymore.  I also wasn't sure if it
>> should be retained since the HPE one didn't take effect until SGI was
>> legally part of HPE (circa 2018).  2017/18 was also the last time we did
>> this big a change (for the UV4A).
> 
> If you haven't touched a file in a year, you don't get to claim
> copyright on that year.  If you wish to disagree on this, great, I'll
> gladly take a patch that modifies the lines that has a signed-off-by
> from one of your lawyers for it :)

I skipped over that part.  But I'm moving all changes to a single patch 
and I will look more closely at HPE's documents.  Heaven knows they have 
plenty of lawyers, so many it's hard to ask a simple question... like 
when does a copyright take effect.  When you change it internally, or 
when it gets published?  Sounds like you lean towards the second?

Thanks,
Mike

> 
> thanks,
> 
> greg k-h
>