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* [dpdk-dev] [PATCH 1/2] Introducing SPDX License Identifiers
@ 2017-11-27  7:46 Hemant Agrawal
  2017-11-27  7:46 ` [dpdk-dev] [PATCH 2/2] Change root makefile license to SPDX tag Hemant Agrawal
                   ` (2 more replies)
  0 siblings, 3 replies; 33+ messages in thread
From: Hemant Agrawal @ 2017-11-27  7:46 UTC (permalink / raw)
  To: dev; +Cc: thomas, john.mcnamara

The DPDK uses the Open Source BSD-3-Clause license for the core libraries
and drivers. The kernel components are naturally GPLv2 licensed.

Many of the files in the DPDK source code contain the full text of the
applicable license. For example, most of the BSD-3-Clause files contain a
full copy of the BSD-3-Clause license text.

Including big blocks of License headers in all files blows up the source
code with mostly redundant information.  An additional problem is that even
the same licenses are referred to by a number of slightly varying text
blocks (full, abbreviated, different indentation, line wrapping and/or
white space, with obsolete address information, ...) which makes validation
and automatic processing a nightmare.

To make this easier, DPDK is adpoting the use of a single line reference to
Unique License Identifiers in source files as defined by the Linux
Foundation's SPDX project [1].

Adding license information in this fashion, rather than adding full license
text, can be more efficient for developers; decreases errors; and improves
automated detection of licenses. The current set of valid, predefined SPDX
identifiers is set forth on the SPDX License List[2]
at https://spdx.org/licenses/.

For example, to label a file as subject to the BSD-3-Clause license,
the following text would be used:

Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
SPDX-License-Identifier:        BSD-3-Clause

To label a file as GPL-2.0 (e.g., for code that runs in the kernel), the
following text would be used:

Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
SPDX-License-Identifier:        GPL-2.0

To label a file as dual-licensed with BSD-3-Clause and GPL-2.0 (e.g., for
code that is shared between the kernel and userspace), the following text
would be used:

Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
SPDX-License-Identifier:        BSD-3-Clause OR GPL-2.0

To label a file as dual-licensed with BSD-3-Clause and LGPL-2.1 (e.g., for
code that is shared between the kernel and userspace), the following text
would be used:

Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
SPDX-License-Identifier:        BSD-3-Clause OR LGPL-2.1

Note: Any new file contributions in DPDK shall adhere to the above scheme.
It is also being recommended to replace the existing license text in the
code with SPDX-License-Identifiers.

Note 2: DPDK currently adhere to it's IP policies[3]. Any exception to this
shall be approved by DPDK tech board and DPDK Governing Board. Steps for
any exception approval:
1. Mention the appropriate license identifier form SPDX. If the license is
   not listed in SPDX Licenses. It is the submitters responsibiliity to get
   it fist listed.
2. Get the required approval from the DPDK Technical Board. Technical board
   may advise the author to check alternate means first. If no other
   alternatives are found and the merit of the contributions are important
   for DPDK's mission, it may decide on such exception with two-thirds vote
   of the members.
3. Technical board then approach Governing board for such limited approval
   for the given contribution only.

Any approvals shall be documented in "Licenses/exceptions.txt" with record
dates.

Note 3: Projects like U-boot have been been using SPDX License Idenfiers
successfully [2]. They have been referered in implementing SPDX based
guidelines in DPDK.

Note 4: From the legal point of view, this patch is supposed to be only a
change to the textual representation of the license information, but in no
way any change to the actual license terms. With this patch applied, all
files will still be licensed under the same terms they were before.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 LICENSE.GPL                         | 339 ------------------------
 LICENSE.LGPL                        | 502 ------------------------------------
 Licenses/Exceptions.txt             |  12 +
 Licenses/README                     |  82 ++++++
 Licenses/bsd-3-clause.txt           |   9 +
 Licenses/gpl-2.0.txt                | 339 ++++++++++++++++++++++++
 Licenses/lgpl-2.1.txt               | 502 ++++++++++++++++++++++++++++++++++++
 README                              |   5 +-
 doc/guides/contributing/patches.rst |  36 +++
 9 files changed, 983 insertions(+), 843 deletions(-)
 delete mode 100644 LICENSE.GPL
 delete mode 100644 LICENSE.LGPL
 create mode 100644 Licenses/Exceptions.txt
 create mode 100644 Licenses/README
 create mode 100644 Licenses/bsd-3-clause.txt
 create mode 100644 Licenses/gpl-2.0.txt
 create mode 100644 Licenses/lgpl-2.1.txt

diff --git a/LICENSE.GPL b/LICENSE.GPL
deleted file mode 100644
index d511905..0000000
--- a/LICENSE.GPL
+++ /dev/null
@@ -1,339 +0,0 @@
-		    GNU GENERAL PUBLIC LICENSE
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diff --git a/LICENSE.LGPL b/LICENSE.LGPL
deleted file mode 100644
index 4362b49..0000000
--- a/LICENSE.LGPL
+++ /dev/null
@@ -1,502 +0,0 @@
-                  GNU LESSER GENERAL PUBLIC LICENSE
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diff --git a/Licenses/Exceptions.txt b/Licenses/Exceptions.txt
new file mode 100644
index 0000000..ef45920
--- /dev/null
+++ b/Licenses/Exceptions.txt
@@ -0,0 +1,12 @@
+This file will record any exceptions in DPDK Project with respect to DPDK
+IP License policy as defined in DPDK Charter available at:
+
+http://dpdk.org/about/charter (Section 6. Intellectual Property Policy)
+
+----------------------------------------------------------------------------------------------
+License Name                 SPDX Identifier     TB Approval Date  GB Approval Date  File name
+----------------------------------------------------------------------------------------------
+1.
+
+----------------------------------------------------------------------------------------------
+
diff --git a/Licenses/README b/Licenses/README
new file mode 100644
index 0000000..1b1d99d
--- /dev/null
+++ b/Licenses/README
@@ -0,0 +1,82 @@
+The DPDK uses the Open Source BSD-3-Clause license for the core libraries and
+drivers. The kernel components are naturally GPLv2 licensed.
+
+Including big blocks of License headers in all files blows up the
+source code with mostly redundant information.  An additional problem
+is that even the same licenses are referred to by a number of
+slightly varying text blocks (full, abbreviated, different
+indentation, line wrapping and/or white space, with obsolete address
+information, ...) which makes validation and automatic processing a nightmare.
+
+To make this easier, DPDK is adpoting the use of a single line reference to
+Unique License Identifiers in source files as defined by the Linux Foundation's
+SPDX project [1].
+
+Adding license information in this fashion, rather than adding full license
+text, can be more efficient for developers; decreases errors; and improves
+automated detection of licenses. The current set of valid, predefined SPDX
+identifiers is set forth on the SPDX License List[2]
+at https://spdx.org/licenses/.
+
+For example, to label a file as subject to the BSD-3-Clause license,
+the following text would be used:
+
+Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
+SPDX-License-Identifier:        BSD-3-Clause
+
+To label a file as GPL-2.0 (e.g., for code that runs in the kernel), the
+following text would be used:
+
+Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
+SPDX-License-Identifier:        GPL-2.0
+
+To label a file as dual-licensed with BSD-3-Clause and GPL-2.0 (e.g., for code
+that is shared between the kernel and userspace), the following text would be
+used:
+
+Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
+SPDX-License-Identifier:        BSD-3-Clause OR GPL-2.0
+
+To label a file as dual-licensed with BSD-3-Clause and LGPL-2.1 (e.g., for code
+that is shared between the kernel and userspace), the following text would be
+used:
+
+Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
+SPDX-License-Identifier:        BSD-3-Clause OR LGPL-2.1
+
+Any new file contributions in DPDK shall adhere to the above scheme.
+It is also being recommended to replace the existing license text in the code
+with SPDX-License-Identifiers.
+
+Note: DPDK currently adhere to it's IP policies[3]. Any exception to this shall
+be approved by DPDK tech board and DPDK Governing Board. Steps for any exception
+approval:
+1. Mention the appropriate license identifier form SPDX. If the license is not
+   listed in SPDX Licenses. It is the submitters responsibiliity to get it
+   fist listed.
+2. Get the required approval from the DPDK Technical Board. Technical board may
+   advise the author to check alternate means first. If no other alternative
+   are found and the merit of the contributions are important for DPDK's
+   mission, it may decide on such exception with two-thirds vote of the members.
+3. Technical board then approach Governing board for such limited approval for
+   the given contribution only.
+
+Any approvals shall be documented in "Licenses/exceptions.txt" with record
+dates.
+
+Projects like U-boot have been been using SPDX License Idenfiers successfully
+[2]. They have been referered in implementing SPDX based guidelines in DPDK.
+
+
+[1] http://spdx.org/
+[2] http://spdx.org/licenses/
+[3] http://dpdk.org/about/charter
+[4] https://www.denx.de/wiki/U-Boot/Licensing
+
+DPDK project supported licenses are:
+
+Full name				        SPDX Identifier	OSI Approved	File name		URI
+=======================================================================================================================================
+GNU General Public License v2.0 only		GPL-2.0		Y		gpl-2.0.txt		http://spdx.org/licenses/GPL-2.0.html#licenseText
+GNU Lesser General Public License v2.1 or later	LGPL-2.1+	Y		lgpl-2.1.txt		http://spdx.org/licenses/LGPL-2.1.html#licenseText
+BSD 3-clause "New" or "Revised" License		BSD-3-Clause	Y		bsd-3-clause.txt	http://spdx.org/licenses/BSD-3-Clause#licenseText
diff --git a/Licenses/bsd-3-clause.txt b/Licenses/bsd-3-clause.txt
new file mode 100644
index 0000000..731a737
--- /dev/null
+++ b/Licenses/bsd-3-clause.txt
@@ -0,0 +1,9 @@
+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.
+
+3. Neither the name of the copyright holder 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.
diff --git a/Licenses/gpl-2.0.txt b/Licenses/gpl-2.0.txt
new file mode 100644
index 0000000..d159169
--- /dev/null
+++ b/Licenses/gpl-2.0.txt
@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
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+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
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+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
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+    <one line to give the program's name and a brief idea of what it does.>
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+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
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+Also add information on how to contact you by electronic and paper mail.
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+If the program is interactive, make it output a short notice like this
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+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
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+
+You should also get your employer (if you work as a programmer) or your
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+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
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diff --git a/Licenses/lgpl-2.1.txt b/Licenses/lgpl-2.1.txt
new file mode 100644
index 0000000..e5ab03e
--- /dev/null
+++ b/Licenses/lgpl-2.1.txt
@@ -0,0 +1,502 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
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+ Everyone is permitted to copy and distribute verbatim copies
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+possible use to the public, we recommend making it free software that
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+"copyright" line and a pointer to where the full notice is found.
+
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+    Copyright (C) <year>  <name of author>
+
+    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.
+
+    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.
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+    License along with this library; if not, write to the Free Software
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+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
diff --git a/README b/README
index 29ba0e0..055cfc2 100644
--- a/README
+++ b/README
@@ -1,8 +1,9 @@
 DPDK is a set of libraries and drivers for fast packet processing.
 It supports many processor architectures and both FreeBSD and Linux.
 
-The DPDK uses the Open Source BSD license for the core libraries and
-drivers. The kernel components are GPLv2 licensed.
+The DPDK uses the Open Source BSD-3-Clause license for the core libraries
+and drivers. The kernel components are GPLv2 licensed. DPDK usages
+SPDX Licenese identifiers instead of full license text in source files.
 
 Please check the doc directory for release notes,
 API documentation, and sample application information.
diff --git a/doc/guides/contributing/patches.rst b/doc/guides/contributing/patches.rst
index 40983c1..a2ecc62 100644
--- a/doc/guides/contributing/patches.rst
+++ b/doc/guides/contributing/patches.rst
@@ -32,6 +32,42 @@ It is also worth registering for the DPDK `Patchwork <http://dpdk.org/dev/patchw
 The development process requires some familiarity with the ``git`` version control system.
 Refer to the `Pro Git Book <http://www.git-scm.com/book/>`_ for further information.
 
+Source License
+--------------
+
+The DPDK uses the Open Source BSD-3-Clause license for the core libraries and
+drivers. The kernel components are GPLv2 licensed. DPDK usaes single line
+reference to Unique License Identifiers in source files as defined by the Linux
+Foundation's `SPDX project <http://spdx.org/>`_.
+
+For example, to label a file as subject to the BSD-3-Clause license,
+the following text would be used:
+
+Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
+``SPDX-License-Identifier:        BSD-3-Clause``
+
+To label a file as dual-licensed with BSD-3-Clause and GPL-2.0 (e.g., for code
+that is shared between the kernel and userspace), the following text would be
+used:
+
+Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
+``SPDX-License-Identifier:        BSD-3-Clause OR GPL-2.0``
+
+To label a file as dual-licensed with BSD-3-Clause and LGPL-2.1 (e.g., for code
+that is shared between the kernel and userspace), the following text would be
+used:
+
+Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
+``SPDX-License-Identifier:        BSD-3-Clause OR LGPL-2.1``
+
+To label a file as GPL-2.0 (e.g., for code that runs in the kernel), the
+following text would be used:
+
+Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
+``SPDX-License-Identifier:        GPL-2.0``
+
+Any new file contributions in DPDK shall adhere to the above scheme.
+It is also being recommended to replace the existing license.
 
 Maintainers and Sub-trees
 -------------------------
-- 
2.7.4

^ permalink raw reply	[flat|nested] 33+ messages in thread

end of thread, other threads:[~2018-01-04 18:32 UTC | newest]

Thread overview: 33+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-11-27  7:46 [dpdk-dev] [PATCH 1/2] Introducing SPDX License Identifiers Hemant Agrawal
2017-11-27  7:46 ` [dpdk-dev] [PATCH 2/2] Change root makefile license to SPDX tag Hemant Agrawal
2017-11-27 12:01   ` Bruce Richardson
2017-12-01  8:41     ` Hemant Agrawal
2017-11-28 16:59 ` [dpdk-dev] [PATCH 1/2] Introducing SPDX License Identifiers Stephen Hemminger
2017-12-01  8:38 ` [dpdk-dev] [PATCH v2 " Hemant Agrawal
2017-12-01  8:38   ` [dpdk-dev] [PATCH v2 2/2] Change root makefile license to SPDX tag Hemant Agrawal
2017-12-07 23:46   ` [dpdk-dev] [PATCH v2 1/2] Introducing SPDX License Identifiers Ferruh Yigit
2017-12-08  4:57     ` Hemant Agrawal
2017-12-08  7:41   ` [dpdk-dev] [PATCH v3 1/4] " Hemant Agrawal
2017-12-08  7:41     ` [dpdk-dev] [PATCH v3 2/4] change root makefile license to SPDX tag Hemant Agrawal
2017-12-08  7:41     ` [dpdk-dev] [PATCH v3 3/4] change NXP dpaa2 code License text to SPDX tags Hemant Agrawal
2017-12-08 18:07       ` Stephen Hemminger
2017-12-08  7:41     ` [dpdk-dev] [PATCH v3 4/4] change NXP dpaa " Hemant Agrawal
2017-12-13 10:46     ` [dpdk-dev] [PATCH v3 1/4] Introducing SPDX License Identifiers Thomas Monjalon
2017-12-13 11:38       ` Bruce Richardson
2017-12-13 15:38         ` Wiles, Keith
2017-12-15 10:52           ` Hemant Agrawal
2017-12-18 12:39     ` [dpdk-dev] [PATCH v4 " Hemant Agrawal
2017-12-18 12:39       ` [dpdk-dev] [PATCH v4 2/4] change root makefile license to SPDX tag Hemant Agrawal
2017-12-18 14:32         ` Bruce Richardson
2017-12-18 15:52         ` Bruce Richardson
2017-12-18 16:30           ` Thomas Monjalon
2017-12-19  5:29             ` Hemant Agrawal
2017-12-19 10:01               ` Bruce Richardson
2017-12-18 12:39       ` [dpdk-dev] [PATCH v4 3/4] change NXP dpaa2 code License text to SPDX tags Hemant Agrawal
2017-12-18 12:39       ` [dpdk-dev] [PATCH v4 4/4] change NXP dpaa " Hemant Agrawal
2017-12-19 10:14       ` [dpdk-dev] [PATCH v5 1/4] Introducing SPDX License Identifiers Hemant Agrawal
2017-12-19 10:14         ` [dpdk-dev] [PATCH v5 2/4] change root makefile license to SPDX tag Hemant Agrawal
2017-12-19 10:23           ` Bruce Richardson
2017-12-19 10:14         ` [dpdk-dev] [PATCH v5 3/4] change NXP dpaa2 code License text to SPDX tags Hemant Agrawal
2017-12-19 10:14         ` [dpdk-dev] [PATCH v5 4/4] change NXP dpaa " Hemant Agrawal
2018-01-04 18:32         ` [dpdk-dev] [PATCH v5 1/4] Introducing SPDX License Identifiers Thomas Monjalon

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