linux-kernel - Re: [PATCH v7 1/6] fieldbus_dev: add Fieldbus Device subsystem.

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Date:   Thu, 24 Jan 2019 19:25:02 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Sven Van Asbroeck <thesven73@...il.com>
Cc:     Andreas Färber <afaerber@...e.de>,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Sven Van Asbroeck <svendev@...x.com>, robh+dt@...nel.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Lee Jones <lee.jones@...aro.org>, mark.rutland@....com,
        treding@...dia.com, David Lechner <david@...hnology.com>,
        noralf@...nnes.org, johan@...nel.org,
        Michal Simek <monstr@...str.eu>, michal.vokac@...ft.com,
        Arnd Bergmann <arnd@...db.de>, john.garry@...wei.com,
        geert+renesas@...der.be, robin.murphy@....com,
        sebastien.bourdelin@...oirfairelinux.com, icenowy@...c.io,
        Stuart Yoder <stuyoder@...il.com>, maxime.ripard@...tlin.com,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v7 1/6] fieldbus_dev: add Fieldbus Device subsystem.

On Thu, Jan 24, 2019 at 01:07:58PM -0500, Sven Van Asbroeck wrote:
> On Tue, Jan 22, 2019 at 1:52 PM Greg KH <gregkh@...uxfoundation.org> wrote:
> >
> > SPDX "GPL-2.0+" please.
> >
> > > would be if this code was derived from v2-only code that can't be
> > > relicensed anymore.
> >
> > Are you _sure_ you want v2+?  I ask as I am forced to :)
> >
> 
> The licencing choice confuses me. Why would I choose a different
> licence to what the Linux kernel itself is provided under?

The Linux kernel is provided under "GPLv2" not "GPLv2+"

"GPLv2" means "GPLv2 only"

"GPLv2+" means "Any version of the GPL that the FSF decides to create
from now until the end of time."

> If I did pick a different one, what are the tradeoffs between GPLv2 and GPLv2+ ?

That is for you and your lawyers to discuss :)

thanks,

greg k-h