[Xen-devel] [PATCH for 4.7] libxenvchan: Change license of header from Lesser GPL v2.1 to BSD

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

As the xen/COPYING file says:
"A few files are licensed under both GPL and a weaker BSD-style
license. This includes all files within the subdirectory
include/public, as described in include/public/COPYING. All such files
include the non-GPL license text as a source-code comment. Although
the license text refers generically to "the software", the non-GPL
license applies *only* to those source files that explicitly include
the non-GPL license text."

The libxenvchan.h is under xen/include/public/io directory
and the xen/include/public/COPYING says:

"XEN NOTICE
==========

This copyright applies to all files within this subdirectory and its
subdirectories:
  include/public/*.h
  include/public/hvm/*.h
  include/public/io/*.h

The intention is that these files can be freely copied into the source
tree of an operating system when porting that OS to run on Xen. Doing
so does *not* cause the OS to become subject to the terms of the GPL.

All other files in the Xen source distribution are covered by version
2 of the GNU General Public License except where explicitly stated
otherwise within individual source files.
"
Having the libxenvchan.h as Lesser GPL v2.1 where the COPYING file
says otherwise is confusing to say at least.

Upon consulting with the authors of libxenvchan they said:
"FWIW Neither I, nor ITL staff (as author of original libvchan library)
have anything against converting it to the BSD-style licence."
(Marek Marczykowski-Górecki,
http://lists.xen.org/archives/html/xen-devel/2016-06/msg00995.html)
so as such lets change it.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

---
Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Cc: Anil Madhavapeddy <anil@xxxxxxxxxx>
Cc: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
cc: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>
Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
Cc: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Cc: Jan Beulich <JBeulich@xxxxxxxx>
Cc: Jason Andryuk <andryuk@xxxxxxxx>
Cc: Keir Fraser <keir@xxxxxxx>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Cc: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
Cc: Matthew Daley <mattjd@xxxxxxxxx>
Cc: Olaf Hering <olaf@xxxxxxxxx>
Cc: Roger Pau Monne <roger.pau@xxxxxxxxxxxxx>
Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Cc: Tim Deegan <tim@xxxxxxx>
Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 tools/libvchan/libxenvchan.h        | 25 +++++++++++++++----------
 xen/include/public/io/libxenvchan.h | 25 +++++++++++++++----------
 2 files changed, 30 insertions(+), 20 deletions(-)

diff --git a/tools/libvchan/libxenvchan.h b/tools/libvchan/libxenvchan.h
index 2adbdfe..c956d9d 100644
--- a/tools/libvchan/libxenvchan.h
+++ b/tools/libvchan/libxenvchan.h
@@ -10,18 +10,23 @@
  *
  * @section LICENSE
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
  *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
  *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; If not, see 
<http://www.gnu.org/licenses/>.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
  *
  * @section DESCRIPTION
  *
diff --git a/xen/include/public/io/libxenvchan.h 
b/xen/include/public/io/libxenvchan.h
index a62869a..44284f4 100644
--- a/xen/include/public/io/libxenvchan.h
+++ b/xen/include/public/io/libxenvchan.h
@@ -10,18 +10,23 @@
  *
  * @section LICENSE
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
  *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
  *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; If not, see 
<http://www.gnu.org/licenses/>.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
  *
  * @section DESCRIPTION
  *
-- 
2.5.5


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