Hi Greg,

On Thu, Aug 15, 2019 at 04:53:00PM +0200, Greg Kroah-Hartman wrote:
> On Thu, Aug 15, 2019 at 02:31:26PM +0000, Fabrizio Castro wrote:
> > On 15 August 2019 15:15, Laurent Pinchart wrote:
> > > On Thu, Aug 15, 2019 at 04:04:00PM +0200, Greg Kroah-Hartman wrote:
> > > > On Thu, Aug 15, 2019 at 04:18:38PM +0300, Laurent Pinchart wrote:
> > > > > Hi Fabrizio,
> > > > >
> > > > > (CC'ing Greg as the architect of the SPDX move)
> > > >
> > > > _one of_, not the one that did the most of he work, that would be 
> > > > Thomas :)
> > > >
> > > > > On Thu, Aug 15, 2019 at 12:04:27PM +0100, Fabrizio Castro wrote:
> > > > > > The information represented by drm_bridge_timings is also
> > > > > > needed by panels, therefore rename drm_bridge_timings to
> > > > > > drm_timings.
> > > > > >
> > > > > > Signed-off-by: Fabrizio Castro <fabrizio.cas...@bp.renesas.com>
> > > > > > Link: https://www.spinics.net/lists/linux-renesas-soc/msg43271.html
> > > > > >
> > > > > > ---
> > > > > > v1->v2:
> > > > > > * new patch
> > > > > >
> > > > > > I have copied the license from include/drm/drm_bridge.h as that's
> > > > > > where the struct originally came from. What's the right SPDX license
> > > > > > to use in this case?
> > > > >
> > > > > https://wiki.spdx.org/view/Legal_Team/Decisions/Dealing_with_Public_Domain_within_SPDX_Files
> > > > >
> > > > > Greg, any idea on how we should handle this ?
> > > >
> > > > Ugh, what lunacy.  But drm_bridge.h is NOT under any "public domain"
> > > > license, so why is that an issue here?  This looks like a "normal" bsd 3
> > > > clause license to me, right?
> > > 
> > > You're right, I overread part of the text in drm_bridge.h, it seems to
> > > indeed be covered by a BSD 3 clause license. Sorry for the noise.
> > 
> > Mmm... This is the template for the BSD-3-Clause:
> > 
> > Copyright (c) <YEAR>, <OWNER>                                               
> >      
> > All rights reserved.                                                        
> >      
> >                                                                             
> >      
> > Redistribution and use in source and binary forms, with or without 
> > modification, are permitted provided that the following conditions are met:
> >                                                                             
> >      
> > Redistributions of source code must retain the above copyright notice, this 
> > list of conditions and the following disclaimer.
> > 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.
> > Neither the name of the <ORGANIZATION> nor the names of its 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 HOLDER 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.
> > 
> > And this is the license coming from include/drm/drm_bridge.h:
> > 
> > /*                                                                          
> >                                                                             
> >                                                                             
> >                                             
> >  * Copyright (c) 2016 Intel Corporation                                     
> >      
> >  *                                                                          
> >      
> >  * Permission to use, copy, modify, distribute, and sell this software and 
> > its   
> >  * documentation for any purpose is hereby granted without fee, provided 
> > that    
> >  * the above copyright notice appear in all copies and that both that 
> > copyright  
> >  * notice and this permission notice appear in supporting documentation, 
> > and     
> >  * that the name of the copyright holders not be used in advertising or     
> >      
> >  * publicity pertaining to distribution of the software without specific,   
> >      
> >  * written prior permission.  The copyright holders make no representations 
> >      
> >  * about the suitability of this software for any purpose.  It is provided 
> > "as   
> >  * is" without express or implied warranty.                                 
> >      
> >  *                                                                          
> >      
> >  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS 
> > SOFTWARE,   
> >  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO   
> >      
> >  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 
> >      
> >  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF 
> > USE,   
> >  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER   
> >      
> >  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 
> > PERFORMANCE  
> >  * OF THIS SOFTWARE.                                                        
> >      
> >  */
> > 
> > Perhaps I am completely wrong here, and I am not a lawyer, but the wording 
> > seems different enough to me...
> > I am happy to use "BSD-3-Clause" though. Laurent please double check.
> 
> Please talk to your lawyers about this, we are not them...

I don't think that's fair though. Fabrizio is reworking kernel code, and
as part of that wondered what SPDX tag to apply to a new file that
contains code moved from an existing file that has no SPDX tag, but the
above copyright notice. He's not trying to change a license, or reword
it. As SPDX is the preferred way of expressing licenses in the kernel,
he legitimately asked for help, and I think we should provide an
official answer for this (which could be not to use SPDX but copy the
license text).

-- 
Regards,

Laurent Pinchart

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