linux-kernel - Re: [PATCH] scsi: libsas: Add missing license and update to SPDX license identifier

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Message-ID: <44dc28ee-ad2e-d87d-c2d5-7beb2cf6108e@huawei.com>
Date:   Thu, 29 Nov 2018 17:31:02 +0000
From:   John Garry <john.garry@...wei.com>
To:     James Bottomley <jejb@...ux.vnet.ibm.com>,
        Greg KH <gregkh@...uxfoundation.org>
CC:     <martin.petersen@...cle.com>, <linuxarm@...wei.com>,
        <linux-kernel@...r.kernel.org>, <linux-scsi@...r.kernel.org>
Subject: Re: [PATCH] scsi: libsas: Add missing license and update to SPDX
 license identifier

On 29/11/2018 15:49, James Bottomley wrote:
> On Thu, 2018-11-29 at 11:52 +0000, John Garry wrote:
> [...]
>> Hi Greg,
>>
>> I also note that currently we have an inconsistency in license of
>> sas_init.c:
>>
>> /*
>>   * Serial Attached SCSI (SAS) Transport Layer initialization
>>   *
>>   * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
>>   * Copyright (C) 2005 Luben Tuikov <luben_tuikov@...ptec.com>
>>   *
>>   * This file is licensed under GPLv2.
>>   *
>>   * 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.
>>   *
>>   * 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.
>>   *
>>   * You should have received a copy of the GNU General Public License
>>   * along with this program; if not, write to the Free Software
>>   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-
>> 1307
>>   * USA
>>   *
>>   */
>>
>> ...
>>
>> MODULE_AUTHOR("Luben Tuikov <luben_tuikov@...ptec.com>");
>> MODULE_DESCRIPTION("SAS Transport Layer");
>> MODULE_LICENSE("GPL v2");
>>
>> So the license specifies v2+ but module license states v2.
>>
>> I could not find a docment for guidance on this. I also note that
>> making sas_task.c v2 would mean mixing v2 and v2+ into the module.
>
> The point here is to get help.  There are three pieces of evidence in
> the file one for v2+ and two for v2.  So you can look in the git tree
> to when it was actually contributed:
>
> commit 2908d778ab3e244900c310974e1fc1c69066e450
> Author: James Bottomley <James.Bottomley@...elEye.com>
> Date:   Tue Aug 29 09:22:51 2006 -0500
>
>     [SCSI] aic94xx: new driver
>
> and if you ask the original contributor he can tell you the original
> intent was v2 only.If you want to modify all the files in libsas and
> aic9xxx to have that SPDX tag.

Right, so that would involve modifying the licenses of the currently v2+ 
libsas files. aic9xx source files are v2 already.

>
>> At this point I'm reluctant to touch this in case I mess up, but
>> there  is still the missing license in sas_task.c .
>
> Again, the tree will tell you.  In this case it's
>
> commit 366ca51f30de1cbb5b356c70b7bb22051c558e41
> Author: James Bottomley <James.Bottomley@...senPartnership.com>
> Date:   Fri Jan 18 10:47:01 2008 -0600
>
>     [SCSI] libsas: abstract STP task status into a function
>
> So that file is a direct extraction from an existing v2 only file in
> aic9xxx, so it's licence is also v2 only.

ok

Thanks,
John

>
> James
>
>
> .
>