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

[John Garry]

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@xxxxxxxxxxx>
> >   *
> >   * 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@xxxxxxxxxxx>");
> > 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@xxxxxxxxxxxx>
> 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@xxxxxxxxxxxxxxxxxxxxx>
> 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
>
>
> .