Re: [dpdk-dev] [PATCH v3 2/2] examples/performance-thread: add arm64 support

["O'Driscoll, Tim" <tim.odriscoll@intel.com>]

> From: Sekhar, Ashwin [mailto:Ashwin.Sekhar@cavium.com]
> 
> This license is already there in many files in examples/performance-
> thread directory.
> 
> There are two cases in my patch.
> 
> 1.
> I moved some code from examples/performance-thread/common/lthread.c to
> examples/performance-thread/common/arch/x86/stack.h.
> lthread.c already has the below kind of license. So I think there is no
> issue retaining the same in stack.h also.

That sounds reasonable to me. IANAL, but I don't understand the license in the performance-thread example. It uses BSD 3-clause but references some code that was originally released under BSD 2-clause. It doesn't state that it's dual-licensed, and as far as I know, wasn't re-licensed by the original copyright holder. Anyway, that's an existing problem and not something created by your changes. We'll need to look into it and probably update the IP section of the Project Charter to reflect this.

> 
> 2.
> I added the following files.
> examples/performance-thread/common/arch/arm64/ctx.c
> examples/performance-thread/common/arch/arm64/ctx.h
> examples/performance-thread/common/arch/arm64/stack.h
> 
> These are actually written by me and not taken from the github link.
> By mistake I copied the license entirely :)
> 
> For these files, I shall remove it and re-post a v3.
> 
> Thanks
> Ashwin
> 
> 
> On Mon, 2017-07-03 at 21:21 +0000, O'Driscoll, Tim wrote:
> > >
> > > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Thomas
> > > Monjalon
> > >
> > > There can be a licensing issue here.
> > > We may need advice from the Governing Board and the Technical
> > > Board.
> > That's correct. This uses a 2-clause BSD license, but the
> > Intellectual Property Policy section in the Project Charter (http://d
> > pdk.org/about/charter#ip) specifies 3-clause BSD. If you really need
> > to use a new license, then you'll need to make a request to the
> > Governing Board as specified in clause 6.c in the charter.
> >
> > >
> > >
> > > 18/05/2017 12:21, Ashwin Sekhar T K:
> > > >
> > > > +/*
> > > > + * https://github.com/halayli/lthread which carries the
> > > > following
> > > license.
> > > >
> > > > + *
> > > > + * Copyright (C) 2012, Hasan Alayli <halayli@gmail.com>
> > > > + *
> > > > + * Redistribution and use in source and binary forms, with or
> > > > without
> > > > + * modification, are permitted provided that the following
> > > > conditions
> > > > + * are met:
> > > > + * 1. Redistributions of source code must retain the above
> > > > copyright
> > > > + *    notice, this list of conditions and the following
> > > > disclaimer.
> > > > + * 2. Redistributions in binary form must reproduce the above
> > > copyright
> > > >
> > > > + *    notice, this list of conditions and the following
> > > > disclaimer in
> > > the
> > > >
> > > > + *    documentation and/or other materials provided with the
> > > distribution.
> > > >
> > > > + *
> > > > + * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS
> > > > IS'' AND
> > > > + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
> > > > TO,
> > > THE
> > > >
> > > > + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
> > > > PARTICULAR
> > > PURPOSE
> > > >
> > > > + * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS 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 ADVISED OF THE
> > > POSSIBILITY OF
> > > >
> > > > + * SUCH DAMAGE.
> > > > + */