Re: [dpdk-dev] [PATCH v8 2/3] ring: introduce new header file to include common functions

[Olivier Matz <olivier.matz@6wind.com>]

Hi Hemant,

On Fri, Jan 19, 2018 at 07:45:30PM +0530, Hemant Agrawal wrote:
> Hi Jia,
> 
> On 1/17/2018 9:33 AM, Jia He wrote:
> > Move the common part of rte_ring.h into rte_ring_generic.h.
> > Move the memory barrier part into update_tail().
> > 
> > No functional changes here.
> > 
> > Signed-off-by: Jia He <jia.he@hxt-semitech.com>
> > Suggested-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
> > Suggested-by: Ananyev Konstantin <konstantin.ananyev@intel.com>
> > Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
> > Acked-by: Olivier Matz <olivier.matz@6wind.com>
> > ---
> > diff --git a/lib/librte_ring/rte_ring_generic.h b/lib/librte_ring/rte_ring_generic.h
> > new file mode 100644
> > index 0000000..01f2cae
> > --- /dev/null
> > +++ b/lib/librte_ring/rte_ring_generic.h
> > @@ -0,0 +1,202 @@
> > +/*-
> > + *   Copyright(c) 2017 Intel Corporation. All rights reserved.
> > + *   All rights reserved.
> > + *
> > + *   SPDX-License-Identifier: BSD-3-Clause
> 
> The SPDX should be first line. See other files for Intel or NXP.
> 
> > + */
> > +
> > +/*
> > + * Derived from FreeBSD's bufring.h
> > + *
> > + **************************************************************************
> > + *
> > + * Copyright (c) 2007-2009 Kip Macy kmacy@freebsd.org
> > + * All rights reserved.
> > + *
> > + * 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. The name of Kip Macy nor the names of other
> > + *    contributors may be used to endorse or promote products derived from
> > + *    this software without specific prior written permission.
> > + *
> > + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT OWNER 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.
> > + *
> > + ***************************************************************************/
> > +
> 
> This is BSD-2-freebsd, which is not a approved license for DPDK.
> Can you ask Kip Macy, if he/she is ok to re-license it with BSD-3?
> 
> Please check with legal, if you can just keep the copyright of Kip Macy and
> re license it with BSD-3.
> 
> I see the BSD-3 license to be permissive enough to be re-licensed as BSD-3.
> But I am not a lawyer.
> 

I agree this is something we should do, as a maintainer of librte_ring,
I can do it.

But here, Jia is just moving code in a new file. I don't think this should
block his patchset from beeing included.