linux-kernel - Re: [PATCH v24 01/12] Linux Random Number Generator

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Message-ID: <9370249.4lZBqg7Imc@positron.chronox.de>
Date:   Tue, 12 Nov 2019 03:25:03 +0100
From:   Stephan Müller <smueller@...onox.de>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-crypto@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        linux-api@...r.kernel.org,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        "Alexander E. Patrakov" <patrakov@...il.com>,
        "Ahmed S. Darwish" <darwish.07@...il.com>,
        "Theodore Y. Ts'o" <tytso@....edu>, Willy Tarreau <w@....eu>,
        Matthew Garrett <mjg59@...f.ucam.org>,
        Vito Caputo <vcaputo@...garu.com>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Jan Kara <jack@...e.cz>, Ray Strode <rstrode@...hat.com>,
        William Jon McCann <mccann@....edu>,
        zhangjs <zachary@...shancloud.com>,
        Andy Lutomirski <luto@...nel.org>,
        Florian Weimer <fweimer@...hat.com>,
        Lennart Poettering <mzxreary@...inter.de>,
        Nicolai Stange <nstange@...e.de>,
        "Peter, Matthias" <matthias.peter@....bund.de>,
        Marcelo Henrique Cerri <marcelo.cerri@...onical.com>,
        Roman Drahtmueller <draht@...altsekun.de>,
        Neil Horman <nhorman@...hat.com>
Subject: Re: [PATCH v24 01/12] Linux Random Number Generator

Am Dienstag, 12. November 2019, 00:54:16 CET schrieb Thomas Gleixner:

Hi Thomas,

> Stephan,
> 
> On Mon, 11 Nov 2019, Stephan Müller wrote:
> 
> thanks for Cc'ing me. I'll have a look at the technical details at later
> point in time. 

Thank you very much for considering a review.

> While skimming through the patches I noticed, that you
> thankfully added the SPDX license identifiers, but
> 
> > @@ -0,0 +1,105 @@
> > +// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
> > +/*
> > + * LRNG Fast Noise Source: CPU-based noise source
> > + *
> > + * Copyright (C) 2016 - 2019, Stephan Mueller <smueller@...onox.de>
> > + *
> > + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
> > + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> > + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
> > + * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE
> > + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
> > + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
> > + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
> > + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
> > + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> > + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
> > + * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
> > + * DAMAGE.
> 
> we really want to get rid of these boiler plate disclaimers as they are
> already implicit by the SPDX license identifier and provide no real
> value.
> 
> Aside of that, the above disclaimer has even a slightly different wording
> than the standard BSD-2-Clause disclaimer which is going to cause even more
> headaches as automated scanner tools will detect that and someone has to go
> through that unreadable uppercase yelling mess and figure out whether it's
> a legaly substantial difference.
> 
> Can you please get rid of those?

Absolutely. I have removed that boiler plate disclaimer from all files.

Though I hope it is acceptable to wait for further comments before a 
resubmission.

Thank you very much.

Ciao
Stephan