[patch V2 0/7] LICENSES: Add missing License Text and provide a checker script

[patch V2 0/7] LICENSES: Add missing License Text and provide a checker script

[Thomas Gleixner]

There are a few bogus SPDX identifiers in various files and SPDX
Identifiers used in tree or about to be used which have no corresponding
License Text file in the LICENSES directory or use the new variant of the
GPL-2.0[+] license identifiers which are not mentioned in the GPL-2.0
Valid-License-Identifiers: tags.

There is no tool which can be used to scan the tree and also nothing which
helps people who submit patches to check their stuff before submission.

The following series cleans that up:

 - Add GPL-2.0-only and GPL-2.0-or-later identifiers to the GPL2.0 license
   and the Linux-syscall-note exception

 - Add X11, Apache-2.0, CC-BY-SA-4.0, CCDL-1.0, Linux-OpenIB license texts
   to the LICENSES directory along with the required documentation texts

 - Add a checker script which can read a single file or even a patch from
   the command line or does a full git tree scan

Changes vs. V1:

  - Fix whitespace and UTF-8 damage in various licenses
  
  - Add the GPL-2.0-only/or-later ids to the valid licenses for the
    Linux-syscall-note exception to make the checker work

  - Add a checker script

  - Dropped the patches for the bogus identifiers as they have been picked
    up by the maintainers

8<-------------
 LICENSES/exceptions/Linux-syscall-note |    2 
 LICENSES/preferred/GPL-2.0             |    6 
 b/LICENSES/other/Apache-2.0            |  183 +++++++++++++++
 b/LICENSES/other/CC-BY-SA-4.0          |  397 +++++++++++++++++++++++++++++++++
 b/LICENSES/other/CDDL-1.0              |  364 ++++++++++++++++++++++++++++++
 b/LICENSES/other/Linux-OpenIB          |   26 ++
 b/LICENSES/other/X11                   |   37 +++
 b/scripts/spdxcheck.py                 |  260 +++++++++++++++++++++
 8 files changed, 1274 insertions(+), 1 deletion(-)

[patch V2 1/7] LICENSES/GPL2.0: Add GPL-2.0-only/or-later as valid identifiers

[Thomas Gleixner]

[-- Attachment #1: LICENSESGPL2.0_Add_GPL-2.0-onlyor-later_as_valid_identifiers.patch --]
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From: Thomas Gleixner tglx@linutronix.de

Quite some files have been flagged with the new GPL-2.0-only and
GPL-2.0-or-later identifiers which replace the original GPL-2.0 and
GPL-2.0+ identifiers in the SPDX license identifier specification, but the
identifiers are not mentioned as valid in the GPL-2.0 license file.

Add them to the license file and to the Linux-syscall-note exception to
make everything consistent again.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/LICENSES/exceptions/Linux-syscall-note b/LICENSES/exceptions/Linux-syscall-note
index 6b60b61be4e9..9abdad71fafd 100644
--- a/LICENSES/exceptions/Linux-syscall-note
+++ b/LICENSES/exceptions/Linux-syscall-note
@@ -1,6 +1,6 @@
 SPDX-Exception-Identifier: Linux-syscall-note
 SPDX-URL: https://spdx.org/licenses/Linux-syscall-note.html
-SPDX-Licenses: GPL-2.0, GPL-2.0+, GPL-1.0+, LGPL-2.0, LGPL-2.0+, LGPL-2.1, LGPL-2.1+
+SPDX-Licenses: GPL-2.0, GPL-2.0+, GPL-1.0+, LGPL-2.0, LGPL-2.0+, LGPL-2.1, LGPL-2.1+, GPL-2.0-only, GPL-2.0-or-later
 Usage-Guide:
   This exception is used together with one of the above SPDX-Licenses
   to mark user space API (uapi) header files so they can be included
diff --git a/LICENSES/preferred/GPL-2.0 b/LICENSES/preferred/GPL-2.0
index b8db91d3a1cb..ff0812fd89cc 100644
--- a/LICENSES/preferred/GPL-2.0
+++ b/LICENSES/preferred/GPL-2.0
@@ -1,5 +1,7 @@
 Valid-License-Identifier: GPL-2.0
+Valid-License-Identifier: GPL-2.0-only
 Valid-License-Identifier: GPL-2.0+
+Valid-License-Identifier: GPL-2.0-or-later
 SPDX-URL: https://spdx.org/licenses/GPL-2.0.html
 Usage-Guide:
   To use this license in source code, put one of the following SPDX
@@ -7,8 +9,12 @@ Usage-Guide:
   guidelines in the licensing rules documentation.
   For 'GNU General Public License (GPL) version 2 only' use:
     SPDX-License-Identifier: GPL-2.0
+  or
+    SPDX-License-Identifier: GPL-2.0-only
   For 'GNU General Public License (GPL) version 2 or any later version' use:
     SPDX-License-Identifier: GPL-2.0+
+  or
+    SPDX-License-Identifier: GPL-2.0-or-later
 License-Text:
 
 		    GNU GENERAL PUBLIC LICENSE

[patch V2 2/7] LICENSES: Add X11 license

[Thomas Gleixner]

[-- Attachment #1: LICENSES_Add_X11_license.patch --]
[-- Type: text/plain, Size: 2013 bytes --]

Add the full text of the X11 to the kernel tree.  It was copied directly
from:
    
   https://spdx.org/licenses/X11.html#licenseText

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/LICENSES/other/X11 b/LICENSES/other/X11
new file mode 100644
index 000000000000..fe4353fd0000
--- /dev/null
+++ b/LICENSES/other/X11
@@ -0,0 +1,37 @@
+Valid-License-Identifier: X11
+SPDX-URL: https://spdx.org/licenses/X11.html
+Usage-Guide:
+  To use the X11 put the following SPDX tag/value pair into a comment
+  according to the placement guidelines in the licensing rules
+  documentation:
+    SPDX-License-Identifier: X11
+License-Text:
+
+
+X11 License
+
+Copyright (C) 1996 X Consortium
+
+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:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+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
+X CONSORTIUM 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.
+
+Except as contained in this notice, the name of the X Consortium shall not
+be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from the X
+Consortium.
+
+X Window System is a trademark of X Consortium, Inc.

[patch V2 3/7] LICENSES: Add Apache 2.0 license text

[Thomas Gleixner]

[-- Attachment #1: LICENSES_Add_Apache_2.0_license_text.patch --]
[-- Type: text/plain, Size: 10389 bytes --]

Add the full text of the Apache License version 2 to the kernel tree.  It
was copied directly from:
    
   https://spdx.org/licenses/Apache-2.0.html#licenseText

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/LICENSES/other/Apache-2.0 b/LICENSES/other/Apache-2.0
new file mode 100644
index 000000000000..7cd903f573e5
--- /dev/null
+++ b/LICENSES/other/Apache-2.0
@@ -0,0 +1,183 @@
+Valid-License-Identifier: Apache-2.0
+SPDX-URL: https://spdx.org/licenses/Apache-2.0.html
+Usage-Guide:
+  To use the Apache License version 2.0 put the following SPDX tag/value
+  pair into a comment according to the placement guidelines in the
+  licensing rules documentation:
+    SPDX-License-Identifier: Apache-2.0
+License-Text:
+
+Apache License
+
+Version 2.0, January 2004
+
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the
+copyright owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other
+entities that control, are controlled by, or are under common control with
+that entity. For the purposes of this definition, "control" means (i) the
+power, direct or indirect, to cause the direction or management of such
+entity, whether by contract or otherwise, or (ii) ownership of fifty
+percent (50%) or more of the outstanding shares, or (iii) beneficial
+ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
+permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications,
+including but not limited to software source code, documentation source,
+and configuration files.
+
+"Object" form shall mean any form resulting from mechanical transformation
+or translation of a Source form, including but not limited to compiled
+object code, generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form,
+made available under the License, as indicated by a copyright notice that
+is included in or attached to the work (an example is provided in the
+Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form,
+that is based on (or derived from) the Work and for which the editorial
+revisions, annotations, elaborations, or other modifications represent, as
+a whole, an original work of authorship. For the purposes of this License,
+Derivative Works shall not include works that remain separable from, or
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+Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original
+version of the Work and any modifications or additions to that Work or
+Derivative Works thereof, that is intentionally submitted to Licensor for
+inclusion in the Work by the copyright owner or by an individual or Legal
+Entity authorized to submit on behalf of the copyright owner. For the
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+verbal, or written communication sent to the Licensor or its
+representatives, including but not limited to communication on electronic
+mailing lists, source code control systems, and issue tracking systems that
+are managed by, or on behalf of, the Licensor for the purpose of discussing
+and improving the Work, but excluding communication that is conspicuously
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+Contribution."
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+"Contributor" shall mean Licensor and any individual or Legal Entity on
+behalf of whom a Contribution has been received by Licensor and
+subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of this
+   License, each Contributor hereby grants to You a perpetual, worldwide,
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+   reproduce, prepare Derivative Works of, publicly display, publicly
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+3. Grant of Patent License. Subject to the terms and conditions of this
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+   this section) patent license to make, have made, use, offer to sell,
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+   are necessarily infringed by their Contribution(s) alone or by
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+
+4. Redistribution. You may reproduce and distribute copies of the Work or
+   Derivative Works thereof in any medium, with or without modifications,
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+   conditions:
+
+   a. You must give any other recipients of the Work or Derivative Works a
+      copy of this License; and
+
+   b. You must cause any modified files to carry prominent notices stating
+      that You changed the files; and
+
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+      distribute, all copyright, patent, trademark, and attribution notices
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+      pertain to any part of the Derivative Works; and
+
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+      part of the Derivative Works, in at least one of the following
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+      Derivative Works; within the Source form or documentation, if
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+      notices normally appear. The contents of the NOTICE file are for
+      informational purposes only and do not modify the License. You may
+      add Your own attribution notices within Derivative Works that You
+      distribute, alongside or as an addendum to the NOTICE text from the
+      Work, provided that such additional attribution notices cannot be
+      construed as modifying the License.
+
+    You may add Your own copyright statement to Your modifications and may
+    provide additional or different license terms and conditions for use,
+    reproduction, or distribution of Your modifications, or for any such
+    Derivative Works as a whole, provided Your use, reproduction, and
+    distribution of the Work otherwise complies with the conditions stated
+    in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise, any
+   Contribution intentionally submitted for inclusion in the Work by You to
+   the Licensor shall be under the terms and conditions of this License,
+   without any additional terms or conditions. Notwithstanding the above,
+   nothing herein shall supersede or modify the terms of any separate
+   license agreement you may have executed with Licensor regarding such
+   Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+   names, trademarks, service marks, or product names of the Licensor,
+   except as required for reasonable and customary use in describing the
+   origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or agreed to
+   in writing, Licensor provides the Work (and each Contributor provides
+   its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
+   OF ANY KIND, either express or implied, including, without limitation,
+   any warranties or conditions of TITLE, NON-INFRINGEMENT,
+   MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely
+   responsible for determining the appropriateness of using or
+   redistributing the Work and assume any risks associated with Your
+   exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory, whether
+   in tort (including negligence), contract, or otherwise, unless required
+   by applicable law (such as deliberate and grossly negligent acts) or
+   agreed to in writing, shall any Contributor be liable to You for
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+   License or out of the use or inability to use the Work (including but
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+
+9. Accepting Warranty or Additional Liability. While redistributing the
+   Work or Derivative Works thereof, You may choose to offer, and charge a
+   fee for, acceptance of support, warranty, indemnity, or other liability
+   obligations and/or rights consistent with this License. However, in
+   accepting such obligations, You may act only on Your own behalf and on
+   Your sole responsibility, not on behalf of any other Contributor, and
+   only if You agree to indemnify, defend, and hold each Contributor
+   harmless for any liability incurred by, or claims asserted against, such
+   Contributor by reason of your accepting any such warranty or additional
+   liability.
+
+END OF TERMS AND CONDITIONS

[patch V2 4/7] LICENSES: Add CDDL-1.0 license text

[Thomas Gleixner]

[-- Attachment #1: LICENSES_Add_CDDL-1.0_license_text.patch --]
[-- Type: text/plain, Size: 19994 bytes --]

Add the full text of the CDDL-1.0 to the kernel tree.  It was copied directly
from:
    
   https://spdx.org/licenses/CDDL-1.0.html#licenseText

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

---
 LICENSES/other/CDDL-1.0 |  364 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 364 insertions(+)

--- /dev/null
+++ b/LICENSES/other/CDDL-1.0
@@ -0,0 +1,364 @@
+Valid-License-Identifier: CDDL-1.0
+SPDX-URL: https://spdx.org/licenses/CDDL-1.0.html
+Usage-Guide:
+  To use the Common Development and Distribution License 1.0 put the
+  following SPDX tag/value pair into a comment according to the placement
+  guidelines in the licensing rules documentation:
+    SPDX-License-Identifier: CDDL-1.0
+
+License-Text:
+
+COMMON DEVELOPMENT AND DISTRIBUTION LICENSE (CDDL)
+Version 1.0
+
+    1. Definitions.
+
+        1.1. "Contributor" means each individual or entity that creates or
+             contributes to the creation of Modifications.
+
+        1.2. "Contributor Version" means the combination of the Original
+	     Software, prior Modifications used by a Contributor (if any),
+	     and the Modifications made by that particular Contributor.
+
+        1.3. "Covered Software" means (a) the Original Software, or (b)
+             Modifications, or (c) the combination of files containing
+             Original Software with files containing Modifications, in each
+             case including portions thereof.
+
+	1.4. "Executable" means the Covered Software in any form other than
+             Source Code.
+
+        1.5. "Initial Developer" means the individual or entity that first
+             makes Original Software available under this License.
+
+        1.6. "Larger Work" means a work which combines Covered Software or
+             portions thereof with code not governed by the terms of this
+             License.
+
+        1.7. "License" means this document.
+
+        1.8. "Licensable" means having the right to grant, to the maximum
+             extent possible, whether at the time of the initial grant or
+             subsequently acquired, any and all of the rights conveyed herein.
+
+        1.9. "Modifications" means the Source Code and Executable form of
+             any of the following:
+
+            A. Any file that results from an addition to, deletion from or
+               modification of the contents of a file containing Original
+               Software or previous Modifications;
+
+            B. Any new file that contains any part of the Original Software
+               or previous Modification; or
+
+            C. Any new file that is contributed or otherwise made available
+               under the terms of this License.
+
+        1.10. "Original Software" means the Source Code and Executable form
+              of computer software code that is originally released under
+              this License.
+
+        1.11. "Patent Claims" means any patent claim(s), now owned or
+              hereafter acquired, including without limitation, method,
+              process, and apparatus claims, in any patent Licensable by
+              grantor.
+
+        1.12. "Source Code" means (a) the common form of computer software
+	      code in which modifications are made and (b) associated
+              documentation included in or with such code.
+
+        1.13. "You" (or "Your") means an individual or a legal entity
+              exercising rights under, and complying with all of the terms
+              of, this License. For legal entities, "You" includes any
+              entity which controls, is controlled by, or is under common
+              control with You. For purposes of this definition, "control"
+              means (a) the power, direct or indirect, to cause the
+              direction or management of such entity, whether by contract
+              or otherwise, or (b) ownership of more than fifty percent
+              (50%) of the outstanding shares or beneficial ownership of
+              such entity.
+
+    2. License Grants.
+        2.1. The Initial Developer Grant.
+
+        Conditioned upon Your compliance with Section 3.1 below and subject
+        to third party intellectual property claims, the Initial Developer
+        hereby grants You a world-wide, royalty-free, non-exclusive
+        license:
+
+            (a) under intellectual property rights (other than patent or
+                trademark) Licensable by Initial Developer, to use,
+                reproduce, modify, display, perform, sublicense and
+                distribute the Original Software (or portions thereof),
+                with or without Modifications, and/or as part of a Larger
+                Work; and
+
+            (b) under Patent Claims infringed by the making, using or
+                selling of Original Software, to make, have made, use,
+                practice, sell, and offer for sale, and/or otherwise
+                dispose of the Original Software (or portions thereof).
+
+            (c) The licenses granted in Sections 2.1(a) and (b) are
+                effective on the date Initial Developer first distributes
+                or otherwise makes the Original Software available to a
+                third party under the terms of this License.
+
+            (d) Notwithstanding Section 2.1(b) above, no patent license is
+                granted: (1) for code that You delete from the Original
+                Software, or (2) for infringements caused by: (i) the
+                modification of the Original Software, or (ii) the
+                combination of the Original Software with other software or
+                devices.
+
+        2.2. Contributor Grant.
+
+        Conditioned upon Your compliance with Section 3.1 below and subject
+        to third party intellectual property claims, each Contributor
+        hereby grants You a world-wide, royalty-free, non-exclusive
+        license:
+
+            (a) under intellectual property rights (other than patent or
+	        trademark) Licensable by Contributor to use, reproduce,
+	        modify, display, perform, sublicense and distribute the
+	        Modifications created by such Contributor (or portions
+	        thereof), either on an unmodified basis, with other
+	        Modifications, as Covered Software and/or as part of a
+	        Larger Work; and
+
+            (b) under Patent Claims infringed by the making, using, or
+                selling of Modifications made by that Contributor either
+                alone and/or in combination with its Contributor Version
+                (or portions of such combination), to make, use, sell,
+                offer for sale, have made, and/or otherwise dispose of: (1)
+                Modifications made by that Contributor (or portions
+                thereof); and (2) the combination of Modifications made by
+                that Contributor with its Contributor Version (or portions
+                of such combination).
+
+            (c) The licenses granted in Sections 2.2(a) and 2.2(b) are
+                effective on the date Contributor first distributes or
+                otherwise makes the Modifications available to a third
+                party.
+
+            (d) Notwithstanding Section 2.2(b) above, no patent license is
+                granted: (1) for any code that Contributor has deleted from
+                the Contributor Version; (2) for infringements caused by:
+                (i) third party modifications of Contributor Version, or
+                (ii) the combination of Modifications made by that
+                Contributor with other software (except as part of the
+                Contributor Version) or other devices; or (3) under Patent
+                Claims infringed by Covered Software in the absence of
+                Modifications made by that Contributor.
+
+    3. Distribution Obligations.
+        3.1. Availability of Source Code.
+
+        Any Covered Software that You distribute or otherwise make
+        available in Executable form must also be made available in Source
+        Code form and that Source Code form must be distributed only under
+        the terms of this License. You must include a copy of this License
+        with every copy of the Source Code form of the Covered Software You
+        distribute or otherwise make available. You must inform recipients
+        of any such Covered Software in Executable form as to how they can
+        obtain such Covered Software in Source Code form in a reasonable
+        manner on or through a medium customarily used for software
+        exchange.
+
+        3.2. Modifications.
+
+        The Modifications that You create or to which You contribute are
+        governed by the terms of this License. You represent that You
+        believe Your Modifications are Your original creation(s) and/or You
+        have sufficient rights to grant the rights conveyed by this
+        License.
+
+        3.3. Required Notices.
+
+        You must include a notice in each of Your Modifications that
+        identifies You as the Contributor of the Modification. You may not
+        remove or alter any copyright, patent or trademark notices
+        contained within the Covered Software, or any notices of licensing
+        or any descriptive text giving attribution to any Contributor or
+        the Initial Developer.
+
+        3.4. Application of Additional Terms.
+
+        You may not offer or impose any terms on any Covered Software in
+        Source Code form that alters or restricts the applicable version of
+        this License or the recipients' rights hereunder. You may choose to
+        offer, and to charge a fee for, warranty, support, indemnity or
+        liability obligations to one or more recipients of Covered
+        Software. However, you may do so only on Your own behalf, and not
+        on behalf of the Initial Developer or any Contributor. You must
+        make it absolutely clear that any such warranty, support, indemnity
+        or liability obligation is offered by You alone, and You hereby
+        agree to indemnify the Initial Developer and every Contributor for
+        any liability incurred by the Initial Developer or such Contributor
+        as a result of warranty, support, indemnity or liability terms You
+        offer.
+
+        3.5. Distribution of Executable Versions.
+
+        You may distribute the Executable form of the Covered Software
+        under the terms of this License or under the terms of a license of
+        Your choice, which may contain terms different from this License,
+        provided that You are in compliance with the terms of this License
+        and that the license for the Executable form does not attempt to
+        limit or alter the recipient's rights in the Source Code form from
+        the rights set forth in this License. If You distribute the Covered
+        Software in Executable form under a different license, You must
+        make it absolutely clear that any terms which differ from this
+        License are offered by You alone, not by the Initial Developer or
+        Contributor. You hereby agree to indemnify the Initial Developer
+        and every Contributor for any liability incurred by the Initial
+        Developer or such Contributor as a result of any such terms You
+        offer.
+
+        3.6. Larger Works.
+
+        You may create a Larger Work by combining Covered Software with
+        other code not governed by the terms of this License and distribute
+        the Larger Work as a single product. In such a case, You must make
+        sure the requirements of this License are fulfilled for the Covered
+        Software.
+
+    4. Versions of the License.
+        4.1. New Versions.
+
+        Sun Microsystems, Inc. is the initial license steward and may
+        publish revised and/or new versions of this License from time to
+        time. Each version will be given a distinguishing version
+        number. Except as provided in Section 4.3, no one other than the
+        license steward has the right to modify this License.
+
+        4.2. Effect of New Versions.
+
+        You may always continue to use, distribute or otherwise make the
+        Covered Software available under the terms of the version of the
+        License under which You originally received the Covered
+        Software. If the Initial Developer includes a notice in the
+        Original Software prohibiting it from being distributed or
+        otherwise made available under any subsequent version of the
+        License, You must distribute and make the Covered Software
+        available under the terms of the version of the License under which
+        You originally received the Covered Software. Otherwise, You may
+        also choose to use, distribute or otherwise make the Covered
+        Software available under the terms of any subsequent version of the
+        License published by the license steward.
+
+        4.3. Modified Versions.
+
+        When You are an Initial Developer and You want to create a new
+        license for Your Original Software, You may create and use a
+        modified version of this License if You: (a) rename the license and
+        remove any references to the name of the license steward (except to
+        note that the license differs from this License); and (b) otherwise
+        make it clear that the license contains terms which differ from
+        this License.
+
+    5. DISCLAIMER OF WARRANTY.
+
+    COVERED SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS,
+    WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+    WITHOUT LIMITATION, WARRANTIES THAT THE COVERED SOFTWARE IS FREE OF
+    DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR
+    NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF
+    THE COVERED SOFTWARE IS WITH YOU. SHOULD ANY COVERED SOFTWARE PROVE
+    DEFECTIVE IN ANY RESPECT, YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER
+    CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY SERVICING, REPAIR OR
+    CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART
+    OF THIS LICENSE. NO USE OF ANY COVERED SOFTWARE IS AUTHORIZED HEREUNDER
+    EXCEPT UNDER THIS DISCLAIMER.
+
+    6. TERMINATION.
+
+        6.1. This License and the rights granted hereunder will terminate
+        automatically if You fail to comply with terms herein and fail to
+        cure such breach within 30 days of becoming aware of the
+        breach. Provisions which, by their nature, must remain in effect
+        beyond the termination of this License shall survive.
+
+        6.2. If You assert a patent infringement claim (excluding
+        declaratory judgment actions) against Initial Developer or a
+        Contributor (the Initial Developer or Contributor against whom You
+        assert such claim is referred to as "Participant") alleging that
+        the Participant Software (meaning the Contributor Version where the
+        Participant is a Contributor or the Original Software where the
+        Participant is the Initial Developer) directly or indirectly
+        infringes any patent, then any and all rights granted directly or
+        indirectly to You by such Participant, the Initial Developer (if
+        the Initial Developer is not the Participant) and all Contributors
+        under Sections 2.1 and/or 2.2 of this License shall, upon 60 days
+        notice from Participant terminate prospectively and automatically
+        at the expiration of such 60 day notice period, unless if within
+        such 60 day period You withdraw Your claim with respect to the
+        Participant Software against such Participant either unilaterally
+        or pursuant to a written agreement with Participant.
+
+        6.3. In the event of termination under Sections 6.1 or 6.2 above,
+        all end user licenses that have been validly granted by You or any
+        distributor hereunder prior to termination (excluding licenses
+        granted to You by any distributor) shall survive termination.
+
+    7. LIMITATION OF LIABILITY.
+
+    UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT
+    (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL
+    DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED
+    SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY
+    PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+    OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOST
+    PROFITS, LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR
+    MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF
+    SUCH PARTY SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF SUCH
+    DAMAGES. THIS LIMITATION OF LIABILITY SHALL NOT APPLY TO LIABILITY FOR
+    DEATH OR PERSONAL INJURY RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE
+    EXTENT APPLICABLE LAW PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO
+    NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL
+    DAMAGES, SO THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU.
+
+    8. U.S. GOVERNMENT END USERS.
+
+    The Covered Software is a "commercial item," as that term is defined in
+    48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer
+    software" (as that term is defined at 48 C.F.R. $ 252.227-7014(a)(1))
+    and "commercial computer software documentation" as such terms are used
+    in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 C.F.R. 12.212 and
+    48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), all
+    U.S. Government End Users acquire Covered Software with only those
+    rights set forth herein. This U.S. Government Rights clause is in lieu
+    of, and supersedes, any other FAR, DFAR, or other clause or provision
+    that addresses Government rights in computer software under this
+    License.
+
+    9. MISCELLANEOUS.
+
+    This License represents the complete agreement concerning subject
+    matter hereof. If any provision of this License is held to be
+    unenforceable, such provision shall be reformed only to the extent
+    necessary to make it enforceable. This License shall be governed by the
+    law of the jurisdiction specified in a notice contained within the
+    Original Software (except to the extent applicable law, if any,
+    provides otherwise), excluding such jurisdiction's conflict-of-law
+    provisions. Any litigation relating to this License shall be subject to
+    the jurisdiction of the courts located in the jurisdiction and venue
+    specified in a notice contained within the Original Software, with the
+    losing party responsible for costs, including, without limitation,
+    court costs and reasonable attorneys' fees and expenses. The
+    application of the United Nations Convention on Contracts for the
+    International Sale of Goods is expressly excluded. Any law or
+    regulation which provides that the language of a contract shall be
+    construed against the drafter shall not apply to this License. You
+    agree that You alone are responsible for compliance with the United
+    States export administration regulations (and the export control laws
+    and regulation of any other countries) when You use, distribute or
+    otherwise make available any Covered Software.
+
+    10. RESPONSIBILITY FOR CLAIMS.
+
+    As between Initial Developer and the Contributors, each party is
+    responsible for claims and damages arising, directly or indirectly, out
+    of its utilization of rights under this License and You agree to work
+    with Initial Developer and Contributors to distribute such
+    responsibility on an equitable basis. Nothing herein is intended or
+    shall be deemed to constitute any admission of liability.

[patch V2 5/7] LICENSES: Add CC-BY-SA-4.0 license text

[Thomas Gleixner]

[-- Attachment #1: LICENSES_Add_CC-BY-SA-4.0_license_text.patch --]
[-- Type: text/plain, Size: 21140 bytes --]

Add the full text of the CC-BY-SA-4.0 license to the kernel tree.  It was
copied directly from:
    
   https://spdx.org/licenses/CC-BY-SA-4.0.html#licenseText

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

---
 LICENSES/other/CC-BY-SA-4.0 |  397 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 397 insertions(+)

--- /dev/null
+++ b/LICENSES/other/CC-BY-SA-4.0
@@ -0,0 +1,397 @@
+Valid-License-Identifier: CC-BY-SA-4.0
+SPDX-URL: https://spdx.org/licenses/CC-BY-SA-4.0
+Usage-Guide:
+  To use the Creative Commons Attribution Share Alike 4.0 International
+  license put the following SPDX tag/value pair into a comment according to
+  the placement guidelines in the licensing rules documentation:
+    SPDX-License-Identifier: CC-BY-SA-4.0
+License-Text:
+
+Creative Commons Attribution-ShareAlike 4.0 International
+
+Creative Commons Corporation ("Creative Commons") is not a law firm and
+does not provide legal services or legal advice. Distribution of Creative
+Commons public licenses does not create a lawyer-client or other
+relationship. Creative Commons makes its licenses and related information
+available on an "as-is" basis. Creative Commons gives no warranties
+regarding its licenses, any material licensed under their terms and
+conditions, or any related information. Creative Commons disclaims all
+liability for damages resulting from their use to the fullest extent
+possible.
+
+Using Creative Commons Public Licenses
+
+Creative Commons public licenses provide a standard set of terms and
+conditions that creators and other rights holders may use to share original
+works of authorship and other material subject to copyright and certain
+other rights specified in the public license below. The following
+considerations are for informational purposes only, are not exhaustive, and
+do not form part of our licenses.
+
+Considerations for licensors: Our public licenses are intended for use by
+those authorized to give the public permission to use material in ways
+otherwise restricted by copyright and certain other rights. Our licenses
+are irrevocable. Licensors should read and understand the terms and
+conditions of the license they choose before applying it. Licensors should
+also secure all rights necessary before applying our licenses so that the
+public can reuse the material as expected. Licensors should clearly mark
+any material not subject to the license. This includes other CC-licensed
+material, or material used under an exception or limitation to
+copyright. More considerations for licensors :
+wiki.creativecommons.org/Considerations_for_licensors
+
+Considerations for the public: By using one of our public licenses, a
+licensor grants the public permission to use the licensed material under
+specified terms and conditions. If the licensor's permission is not
+necessary for any reason - for example, because of any applicable exception
+or limitation to copyright - then that use is not regulated by the
+license. Our licenses grant only permissions under copyright and certain
+other rights that a licensor has authority to grant. Use of the licensed
+material may still be restricted for other reasons, including because
+others have copyright or other rights in the material. A licensor may make
+special requests, such as asking that all changes be marked or described.
+
+Although not required by our licenses, you are encouraged to respect those
+requests where reasonable. More considerations for the public :
+wiki.creativecommons.org/Considerations_for_licensees
+
+Creative Commons Attribution-ShareAlike 4.0 International Public License
+
+By exercising the Licensed Rights (defined below), You accept and agree to
+be bound by the terms and conditions of this Creative Commons
+Attribution-ShareAlike 4.0 International Public License ("Public
+License"). To the extent this Public License may be interpreted as a
+contract, You are granted the Licensed Rights in consideration of Your
+acceptance of these terms and conditions, and the Licensor grants You such
+rights in consideration of benefits the Licensor receives from making the
+Licensed Material available under these terms and conditions.
+
+Section 1 - Definitions.
+
+    a. Adapted Material means material subject to Copyright and Similar
+       Rights that is derived from or based upon the Licensed Material and
+       in which the Licensed Material is translated, altered, arranged,
+       transformed, or otherwise modified in a manner requiring permission
+       under the Copyright and Similar Rights held by the Licensor. For
+       purposes of this Public License, where the Licensed Material is a
+       musical work, performance, or sound recording, Adapted Material is
+       always produced where the Licensed Material is synched in timed
+       relation with a moving image.
+
+    b. Adapter's License means the license You apply to Your Copyright and
+       Similar Rights in Your contributions to Adapted Material in
+       accordance with the terms and conditions of this Public License.
+
+    c. BY-SA Compatible License means a license listed at
+       creativecommons.org/compatiblelicenses, approved by Creative Commons
+       as essentially the equivalent of this Public License.
+
+    d. Copyright and Similar Rights means copyright and/or similar rights
+       closely related to copyright including, without limitation,
+       performance, broadcast, sound recording, and Sui Generis Database
+       Rights, without regard to how the rights are labeled or
+       categorized. For purposes of this Public License, the rights
+       specified in Section 2(b)(1)-(2) are not Copyright and Similar
+       Rights.
+
+    e. Effective Technological Measures means those measures that, in the
+       absence of proper authority, may not be circumvented under laws
+       fulfilling obligations under Article 11 of the WIPO Copyright Treaty
+       adopted on December 20, 1996, and/or similar international
+       agreements.
+
+    f. Exceptions and Limitations means fair use, fair dealing, and/or any
+       other exception or limitation to Copyright and Similar Rights that
+       applies to Your use of the Licensed Material.
+
+    g. License Elements means the license attributes listed in the name of
+       a Creative Commons Public License. The License Elements of this
+       Public License are Attribution and ShareAlike.
+
+    h. Licensed Material means the artistic or literary work, database, or
+       other material to which the Licensor applied this Public License.
+
+    i. Licensed Rights means the rights granted to You subject to the terms
+       and conditions of this Public License, which are limited to all
+       Copyright and Similar Rights that apply to Your use of the Licensed
+       Material and that the Licensor has authority to license.
+
+    j. Licensor means the individual(s) or entity(ies) granting rights
+       under this Public License.
+
+    k. Share means to provide material to the public by any means or
+       process that requires permission under the Licensed Rights, such as
+       reproduction, public display, public performance, distribution,
+       dissemination, communication, or importation, and to make material
+       available to the public including in ways that members of the public
+       may access the material from a place and at a time individually
+       chosen by them.
+
+    l. Sui Generis Database Rights means rights other than copyright
+       resulting from Directive 96/9/EC of the European Parliament and of
+       the Council of 11 March 1996 on the legal protection of databases,
+       as amended and/or succeeded, as well as other essentially equivalent
+       rights anywhere in the world.  m. You means the individual or entity
+       exercising the Licensed Rights under this Public License. Your has a
+       corresponding meaning.
+
+Section 2 - Scope.
+
+    a. License grant.
+
+        1. Subject to the terms and conditions of this Public License, the
+           Licensor hereby grants You a worldwide, royalty-free,
+           non-sublicensable, non-exclusive, irrevocable license to
+           exercise the Licensed Rights in the Licensed Material to:
+
+            A. reproduce and Share the Licensed Material, in whole or in part; and
+
+            B. produce, reproduce, and Share Adapted Material.
+
+        2. Exceptions and Limitations. For the avoidance of doubt, where
+           Exceptions and Limitations apply to Your use, this Public
+           License does not apply, and You do not need to comply with its
+           terms and conditions.
+
+        3. Term. The term of this Public License is specified in Section 6(a).
+
+        4. Media and formats; technical modifications allowed. The Licensor
+           authorizes You to exercise the Licensed Rights in all media and
+           formats whether now known or hereafter created, and to make
+           technical modifications necessary to do so. The Licensor waives
+           and/or agrees not to assert any right or authority to forbid You
+           from making technical modifications necessary to exercise the
+           Licensed Rights, including technical modifications necessary to
+           circumvent Effective Technological Measures. For purposes of
+           this Public License, simply making modifications authorized by
+           this Section 2(a)(4) never produces Adapted Material.
+
+        5. Downstream recipients.
+
+            A. Offer from the Licensor - Licensed Material. Every recipient
+               of the Licensed Material automatically receives an offer
+               from the Licensor to exercise the Licensed Rights under the
+               terms and conditions of this Public License.
+
+            B. Additional offer from the Licensor - Adapted Material. Every
+               recipient of Adapted Material from You automatically
+               receives an offer from the Licensor to exercise the Licensed
+               Rights in the Adapted Material under the conditions of the
+               Adapter's License You apply.
+
+            C. No downstream restrictions. You may not offer or impose any
+               additional or different terms or conditions on, or apply any
+               Effective Technological Measures to, the Licensed Material
+               if doing so restricts exercise of the Licensed Rights by any
+               recipient of the Licensed Material.
+
+        6. No endorsement. Nothing in this Public License constitutes or
+           may be construed as permission to assert or imply that You are,
+           or that Your use of the Licensed Material is, connected with, or
+           sponsored, endorsed, or granted official status by, the Licensor
+           or others designated to receive attribution as provided in
+           Section 3(a)(1)(A)(i).
+
+    b. Other rights.
+
+        1. Moral rights, such as the right of integrity, are not licensed
+           under this Public License, nor are publicity, privacy, and/or
+           other similar personality rights; however, to the extent
+           possible, the Licensor waives and/or agrees not to assert any
+           such rights held by the Licensor to the limited extent necessary
+           to allow You to exercise the Licensed Rights, but not otherwise.
+
+        2. Patent and trademark rights are not licensed under this Public
+           License.
+
+        3. To the extent possible, the Licensor waives any right to collect
+           royalties from You for the exercise of the Licensed Rights,
+           whether directly or through a collecting society under any
+           voluntary or waivable statutory or compulsory licensing
+           scheme. In all other cases the Licensor expressly reserves any
+           right to collect such royalties.
+
+Section 3 - License Conditions.
+
+Your exercise of the Licensed Rights is expressly made subject to the
+following conditions.
+
+    a. Attribution.
+
+        1. If You Share the Licensed Material (including in modified form),
+           You must:
+
+            A. retain the following if it is supplied by the Licensor with
+               the Licensed Material:
+
+                i. identification of the creator(s) of the Licensed
+                   Material and any others designated to receive
+                   attribution, in any reasonable manner requested by the
+                   Licensor (including by pseudonym if designated);
+
+                ii. a copyright notice;
+
+                iii. a notice that refers to this Public License;
+
+                iv. a notice that refers to the disclaimer of warranties;
+
+                v. a URI or hyperlink to the Licensed Material to the extent reasonably practicable;
+
+            B. indicate if You modified the Licensed Material and retain an
+               indication of any previous modifications; and
+
+            C. indicate the Licensed Material is licensed under this Public
+            License, and include the text of, or the URI or hyperlink to,
+            this Public License.
+
+        2. You may satisfy the conditions in Section 3(a)(1) in any
+           reasonable manner based on the medium, means, and context in
+           which You Share the Licensed Material. For example, it may be
+           reasonable to satisfy the conditions by providing a URI or
+           hyperlink to a resource that includes the required information.
+
+        3. If requested by the Licensor, You must remove any of the
+           information required by Section 3(a)(1)(A) to the extent
+           reasonably practicable.  b. ShareAlike.In addition to the
+           conditions in Section 3(a), if You Share Adapted Material You
+           produce, the following conditions also apply.
+
+           1. The Adapter's License You apply must be a Creative Commons
+              license with the same License Elements, this version or
+              later, or a BY-SA Compatible License.
+
+           2. You must include the text of, or the URI or hyperlink to, the
+              Adapter's License You apply. You may satisfy this condition
+              in any reasonable manner based on the medium, means, and
+              context in which You Share Adapted Material.
+
+           3. You may not offer or impose any additional or different terms
+              or conditions on, or apply any Effective Technological
+              Measures to, Adapted Material that restrict exercise of the
+              rights granted under the Adapter's License You apply.
+
+Section 4 - Sui Generis Database Rights.
+
+Where the Licensed Rights include Sui Generis Database Rights that apply to
+Your use of the Licensed Material:
+
+    a. for the avoidance of doubt, Section 2(a)(1) grants You the right to
+       extract, reuse, reproduce, and Share all or a substantial portion of
+       the contents of the database;
+
+    b. if You include all or a substantial portion of the database contents
+       in a database in which You have Sui Generis Database Rights, then
+       the database in which You have Sui Generis Database Rights (but not
+       its individual contents) is Adapted Material, including for purposes
+       of Section 3(b); and
+
+    c. You must comply with the conditions in Section 3(a) if You Share all
+       or a substantial portion of the contents of the database.
+
+    For the avoidance of doubt, this Section 4 supplements and does not
+    replace Your obligations under this Public License where the Licensed
+    Rights include other Copyright and Similar Rights.
+
+Section 5 - Disclaimer of Warranties and Limitation of Liability.
+
+    a. Unless otherwise separately undertaken by the Licensor, to the
+       extent possible, the Licensor offers the Licensed Material as-is and
+       as-available, and makes no representations or warranties of any kind
+       concerning the Licensed Material, whether express, implied,
+       statutory, or other. This includes, without limitation, warranties
+       of title, merchantability, fitness for a particular purpose,
+       non-infringement, absence of latent or other defects, accuracy, or
+       the presence or absence of errors, whether or not known or
+       discoverable. Where disclaimers of warranties are not allowed in
+       full or in part, this disclaimer may not apply to You.
+
+    b. To the extent possible, in no event will the Licensor be liable to
+       You on any legal theory (including, without limitation, negligence)
+       or otherwise for any direct, special, indirect, incidental,
+       consequential, punitive, exemplary, or other losses, costs,
+       expenses, or damages arising out of this Public License or use of
+       the Licensed Material, even if the Licensor has been advised of the
+       possibility of such losses, costs, expenses, or damages. Where a
+       limitation of liability is not allowed in full or in part, this
+       limitation may not apply to You.
+
+    c. The disclaimer of warranties and limitation of liability provided
+       above shall be interpreted in a manner that, to the extent possible,
+       most closely approximates an absolute disclaimer and waiver of all
+       liability.
+
+Section 6 - Term and Termination.
+
+    a. This Public License applies for the term of the Copyright and
+       Similar Rights licensed here. However, if You fail to comply with
+       this Public License, then Your rights under this Public License
+       terminate automatically.
+
+    b. Where Your right to use the Licensed Material has terminated under
+       Section 6(a), it reinstates:
+
+        1. automatically as of the date the violation is cured, provided it
+           is cured within 30 days of Your discovery of the violation; or
+
+        2. upon express reinstatement by the Licensor.
+
+    c. For the avoidance of doubt, this Section 6(b) does not affect any
+       right the Licensor may have to seek remedies for Your violations of
+       this Public License.
+
+    d. For the avoidance of doubt, the Licensor may also offer the Licensed
+       Material under separate terms or conditions or stop distributing the
+       Licensed Material at any time; however, doing so will not terminate
+       this Public License.
+
+    e. Sections 1, 5, 6, 7, and 8 survive termination of this Public License.
+
+Section 7 - Other Terms and Conditions.
+
+    a. The Licensor shall not be bound by any additional or different terms
+       or conditions communicated by You unless expressly agreed.
+
+    b. Any arrangements, understandings, or agreements regarding the
+       Licensed Material not stated herein are separate from and
+       independent of the terms and conditions of this Public License.
+
+Section 8 - Interpretation.
+
+    a. For the avoidance of doubt, this Public License does not, and shall
+       not be interpreted to, reduce, limit, restrict, or impose conditions
+       on any use of the Licensed Material that could lawfully be made
+       without permission under this Public License.
+
+    b. To the extent possible, if any provision of this Public License is
+       deemed unenforceable, it shall be automatically reformed to the
+       minimum extent necessary to make it enforceable. If the provision
+       cannot be reformed, it shall be severed from this Public License
+       without affecting the enforceability of the remaining terms and
+       conditions.
+
+    c. No term or condition of this Public License will be waived and no
+       failure to comply consented to unless expressly agreed to by the
+       Licensor.
+
+    d. Nothing in this Public License constitutes or may be interpreted as
+       a limitation upon, or waiver of, any privileges and immunities that
+       apply to the Licensor or You, including from the legal processes of
+       any jurisdiction or authority.
+
+Creative Commons is not a party to its public licenses. Notwithstanding,
+Creative Commons may elect to apply one of its public licenses to material
+it publishes and in those instances will be considered the "Licensor." The
+text of the Creative Commons public licenses is dedicated to the public
+domain under the CC0 Public Domain Dedication. Except for the limited
+purpose of indicating that material is shared under a Creative Commons
+public license or as otherwise permitted by the Creative Commons policies
+published at creativecommons.org/policies, Creative Commons does not
+authorize the use of the trademark "Creative Commons" or any other
+trademark or logo of Creative Commons without its prior written consent
+including, without limitation, in connection with any unauthorized
+modifications to any of its public licenses or any other arrangements,
+understandings, or agreements concerning use of licensed material. For the
+avoidance of doubt, this paragraph does not form part of the public
+licenses.
+
+Creative Commons may be contacted at creativecommons.org.

[patch V2 6/7] LICENSES: Add Linux-OpenIB license text

[Thomas Gleixner]

[-- Attachment #1: LICENSES_Add_Linux-OpenIB_license_text.patch --]
[-- Type: text/plain, Size: 1929 bytes --]

The infiniband code uses a variant of the OpenIB license. This license is
BSD-2-Clause with the MIT disclaimer. The linux kernel uses this license
extensively throughout the driver subsystem since 2005. Note that the
OpenIB.org license is a true match to BSD-2-Clause.

The license text was copied from:

    https://spdx.org/licenses/Linux-OpenIB.html#licenseText

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

---
 LICENSES/other/Linux-OpenIB |   26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

--- /dev/null
+++ b/LICENSES/other/Linux-OpenIB
@@ -0,0 +1,26 @@
+Valid-License-Identifier: Linux-OpenIB
+SPDX-URL: https://spdx.org/licenses/Linux-OpenIB.html
+Usage-Guide:
+  To use the Linux Kernel Variant of OpenIB.org license put the following
+  SPDX tag/value pair into a comment according to the placement guidelines
+  in the licensing rules documentation:
+    SPDX-License-Identifier: Linux-OpenIB
+License-Text:
+
+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.
+
+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.

[patch V2 7/7] scripts: Add SPDX checker script

[Thomas Gleixner]

[-- Attachment #1: scripts--Add-SPDX-checker-script.patch --]
[-- Type: text/plain, Size: 12097 bytes --]

The SPDX-License-Identifiers are growing in the kernel and so grow
expression failures and license IDs are used which have no corresponding
license text file in the LICENSES directory.

Add a script which gathers information from the LICENSES directory,
i.e. the various tags in the licenses and exception files and then scans
either input from stdin, which it treats as a single file or if started
without arguments it scans the full kernel tree.

It checks whether the license expression syntax is correct and also
validates whether the license identifiers used in the expressions are
available in the LICENSES files.

# scripts/spdxcheck.py -h
usage: spdxcheck.py [-h] [-m MAXLINES] [-s] [-v]

SPDX expression checker

optional arguments:
  -h, --help            show this help message and exit
  -m MAXLINES, --maxlines MAXLINES
                        Maximum number of lines to scan in a file. Default 15
  -s, --stdin           Read from stdin. If not set scan full git tree.
  -v, --verbose         Verbose statistics output


# scripts/spdxcheck.py -s <COPYING

# scripts/spdxcheck.py -s <include/dt-bindings/reset/amlogic,meson-axg-reset.h
include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD

# scripts/spdxcheck.py
arch/arm/mach-s3c24xx/h1940-bluetooth.c: 1:28 Invalid License ID: GPL-1.0
arch/x86/kernel/jailhouse.c: 1:28 Invalid License ID: GPL2.0
drivers/pinctrl/sh-pfc/pfc-r8a77965.c: 1:28 Invalid License ID: GPL-2.
include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD
arch/x86/include/asm/jailhouse_para.h: 1:28 Invalid License ID: GPL2.0

# time scripts/spdxcheck.py -v
arch/arm/mach-s3c24xx/h1940-bluetooth.c: 1:28 Invalid License ID: GPL-1.0
arch/x86/kernel/jailhouse.c: 1:28 Invalid License ID: GPL2.0
drivers/pinctrl/sh-pfc/pfc-r8a77965.c: 1:28 Invalid License ID: GPL-2.
include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD
arch/x86/include/asm/jailhouse_para.h: 1:28 Invalid License ID: GPL2.0

License files:               14
Exception files:              1
License IDs                  19
Exception IDs                 1

Files checked:            61332
Lines checked:           669181
Files with SPDX:          16169
Files with errors:            5

real	0m2.642s
user	0m2.231s
sys	0m0.467s

That's a full tree sweep on my laptop. Note, this runs single threaded.

It scans by default the first 15 lines for a SPDX identifier where the
current max inside a top comment is at line 10. But that's going to be
faster once the identifiers are all in the first two lines as documented.

The python wizards will surely know how to do that smarter and faster, but
its at least better than no tool at all.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 scripts/spdxcheck.py |  260 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 260 insertions(+)

--- /dev/null
+++ b/scripts/spdxcheck.py
@@ -0,0 +1,260 @@
+#!/usr/bin/env python
+# SPDX-License-Identifier: GPL2.0
+# Copyright Thomas Gleixner <tglx@linutronix.de>
+
+from argparse import ArgumentParser
+from ply import lex, yacc
+import traceback
+import sys
+import git
+import re
+import os
+
+class ParserException(Exception):
+    def __init__(self, tok, txt):
+        self.tok = tok
+        self.txt = txt
+
+class SPDXException(Exception):
+    def __init__(self, el, txt):
+        self.el = el
+        self.txt = txt
+
+class SPDXdata(object):
+    def __init__(self):
+        self.license_files = 0
+        self.exception_files = 0
+        self.licenses = [ ]
+        self.exceptions = { }
+
+# Read the spdx data from the LICENSES directory
+def read_spdxdata(repo):
+
+    # The subdirectories of LICENSES in the kernel source
+    license_dirs = [ "preferred", "other", "exceptions" ]
+    lictree = repo.heads.master.commit.tree['LICENSES']
+
+    spdx = SPDXdata()
+
+    for d in license_dirs:
+        for el in lictree[d].traverse():
+            if not os.path.isfile(el.path):
+                continue
+
+            exception = None
+            for l in open(el.path).readlines():
+                if l.startswith('Valid-License-Identifier:'):
+                    lid = l.split(':')[1].strip().upper()
+                    if lid in spdx.licenses:
+                        raise SPDXException(el, 'Duplicate License Identifier: %s' %lid)
+                    else:
+                        spdx.licenses.append(lid)
+
+                elif l.startswith('SPDX-Exception-Identifier:'):
+                    exception = l.split(':')[1].strip().upper()
+                    spdx.exceptions[exception] = []
+
+                elif l.startswith('SPDX-Licenses:'):
+                    for lic in l.split(':')[1].upper().strip().replace(' ', '').replace('\t', '').split(','):
+                        if not lic in spdx.licenses:
+                            raise SPDXException(None, 'Exception %s missing license %s' %(ex, lic))
+                        spdx.exceptions[exception].append(lic)
+
+                elif l.startswith("License-Text:"):
+                    if exception:
+                        if not len(spdx.exceptions[exception]):
+                            raise SPDXException(el, 'Exception %s is missing SPDX-Licenses' %excid)
+                        spdx.exception_files += 1
+                    else:
+                        spdx.license_files += 1
+                    break
+    return spdx
+
+class id_parser(object):
+
+    reserved = [ 'AND', 'OR', 'WITH' ]
+    tokens = [ 'LPAR', 'RPAR', 'ID', 'EXC' ] + reserved
+
+    precedence = ( ('nonassoc', 'AND', 'OR'), )
+
+    t_ignore = ' \t'
+
+    def __init__(self, spdx):
+        self.spdx = spdx
+        self.lasttok = None
+        self.lastid = None
+        self.lexer = lex.lex(module = self, reflags = re.UNICODE)
+        # Initialize the parser. No debug file and no parser rules stored on disk
+        # The rules are small enough to be generated on the fly
+        self.parser = yacc.yacc(module = self, write_tables = False, debug = False)
+        self.lines_checked = 0
+        self.checked = 0
+        self.spdx_valid = 0
+        self.spdx_errors = 0
+        self.curline = 0
+        self.deepest = 0
+
+    # Validate License and Exception IDs
+    def validate(self, tok):
+        id = tok.value.upper()
+        if tok.type == 'ID':
+            if not id in self.spdx.licenses:
+                raise ParserException(tok, 'Invalid License ID')
+            self.lastid = id
+        elif tok.type == 'EXC':
+            if not self.spdx.exceptions.has_key(id):
+                raise ParserException(tok, 'Invalid Exception ID')
+            if self.lastid not in self.spdx.exceptions[id]:
+                raise ParserException(tok, 'Exception not valid for license %s' %self.lastid)
+            self.lastid = None
+        elif tok.type != 'WITH':
+            self.lastid = None
+
+    # Lexer functions
+    def t_RPAR(self, tok):
+        r'\)'
+        self.lasttok = tok.type
+        return tok
+
+    def t_LPAR(self, tok):
+        r'\('
+        self.lasttok = tok.type
+        return tok
+
+    def t_ID(self, tok):
+        r'[A-Za-z.0-9\-+]+'
+
+        if self.lasttok == 'EXC':
+            print(tok)
+            raise ParserException(tok, 'Missing parentheses')
+
+        tok.value = tok.value.strip()
+        val = tok.value.upper()
+
+        if val in self.reserved:
+            tok.type = val
+        elif self.lasttok == 'WITH':
+            tok.type = 'EXC'
+
+        self.lasttok = tok.type
+        self.validate(tok)
+        return tok
+
+    def t_error(self, tok):
+        raise ParserException(tok, 'Invalid token')
+
+    def p_expr(self, p):
+        '''expr : ID
+                | ID WITH EXC
+                | expr AND expr
+                | expr OR expr
+                | LPAR expr RPAR'''
+        pass
+
+    def p_error(self, p):
+        if not p:
+            raise ParserException(None, 'Unfinished license expression')
+        else:
+            raise ParserException(p, 'Syntax error')
+
+    def parse(self, expr):
+        self.lasttok = None
+        self.lastid = None
+        self.parser.parse(expr, lexer = self.lexer)
+
+    def parse_lines(self, fd, maxlines, fname):
+        self.checked += 1
+        self.curline = 0
+        try:
+            for line in fd:
+                self.curline += 1
+                if self.curline > maxlines:
+                    break
+                self.lines_checked += 1
+                if line.find("SPDX-License-Identifier:") < 0:
+                    continue
+                expr = line.split(':')[1].replace('*/', '').strip()
+                self.parse(expr)
+                self.spdx_valid += 1
+                #
+                # Should we check for more SPDX ids in the same file and
+                # complain if there are any?
+                #
+                break
+
+        except ParserException as pe:
+            if pe.tok:
+                col = line.find(expr) + pe.tok.lexpos
+                tok = pe.tok.value
+                sys.stdout.write('%s: %d:%d %s: %s\n' %(fname, self.curline, col, pe.txt, tok))
+            else:
+                sys.stdout.write('%s: %d:0 %s\n' %(fname, self.curline, col, pe.txt))
+            self.spdx_errors += 1
+
+if __name__ == '__main__':
+
+    ap = ArgumentParser(description='SPDX expression checker')
+    ap.add_argument('-m', '--maxlines', type=int, default=15,
+                    help='Maximum number of lines to scan in a file. Default 15')
+    ap.add_argument('-s', '--stdin', action='store_true', help='Read from stdin. If not set scan full git tree.')
+    ap.add_argument('-v', '--verbose', action='store_true', help='Verbose statistics output')
+    args = ap.parse_args()
+
+    try:
+        # Use git to get the valid license expressions
+        repo = git.Repo(os.getcwd())
+        assert not repo.bare
+
+        # Initialize SPDX data
+        spdx = read_spdxdata(repo)
+
+        # Initilize the parser
+        parser = id_parser(spdx)
+
+    except SPDXException as se:
+        if se.el:
+            sys.stderr.write('%s: %s\n' %(se.el.path, se.txt))
+        else:
+            sys.stderr.write('%s\n' %se.txt)
+        sys.exit(1)
+
+    except Exception as ex:
+        sys.stderr.write('FAIL: %s\n' %ex)
+        sys.stderr.write('%s\n' %traceback.format_exc())
+        sys.exit(1)
+
+    try:
+        if args.stdin:
+            parser.parse_lines(sys.stdin, args.maxlines, '-')
+        else:
+            for el in repo.heads.master.commit.tree.traverse():
+                # Exclude stuff which would make pointless noise
+                # FIXME: Put this somewhere more sensible
+                if el.path.startswith("LICENSES"):
+                    continue
+                if el.path.find("license-rules.rst") >= 0:
+                    continue
+                if el.path == 'scripts/checkpatch.pl':
+                    continue
+                if not os.path.isfile(el.path):
+                    continue
+                parser.parse_lines(open(el.path), args.maxlines, el.path)
+
+            if args.verbose:
+                sys.stderr.write('\n')
+                sys.stderr.write('License files:     %12d\n' %spdx.license_files)
+                sys.stderr.write('Exception files:   %12d\n' %spdx.exception_files)
+                sys.stderr.write('License IDs        %12d\n' %len(spdx.licenses))
+                sys.stderr.write('Exception IDs      %12d\n' %len(spdx.exceptions))
+                sys.stderr.write('\n')
+                sys.stderr.write('Files checked:     %12d\n' %parser.checked)
+                sys.stderr.write('Lines checked:     %12d\n' %parser.lines_checked)
+                sys.stderr.write('Files with SPDX:   %12d\n' %parser.spdx_valid)
+                sys.stderr.write('Files with errors: %12d\n' %parser.spdx_errors)
+
+            sys.exit(0)
+
+    except Exception as ex:
+        sys.stderr.write('FAIL: %s\n' %ex)
+        sys.stderr.write('%s\n' %traceback.format_exc())
+        sys.exit(1)

Re: [patch V2 1/7] LICENSES/GPL2.0: Add GPL-2.0-only/or-later as valid identifiers

[Greg Kroah-Hartman]

On Wed, Apr 25, 2018 at 10:30:21PM +0200, Thomas Gleixner wrote:
> From: Thomas Gleixner tglx@linutronix.de
> 
> Quite some files have been flagged with the new GPL-2.0-only and
> GPL-2.0-or-later identifiers which replace the original GPL-2.0 and
> GPL-2.0+ identifiers in the SPDX license identifier specification, but the
> identifiers are not mentioned as valid in the GPL-2.0 license file.
> 
> Add them to the license file and to the Linux-syscall-note exception to
> make everything consistent again.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Hans Verkuil <hans.verkuil@cisco.com>
> Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>

I think you dropped my review of the v1 of this series :(

Anyway:

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Re: [patch V2 2/7] LICENSES: Add X11 license

[Greg Kroah-Hartman]

On Wed, Apr 25, 2018 at 10:30:22PM +0200, Thomas Gleixner wrote:
> Add the full text of the X11 to the kernel tree.  It was copied directly
> from:
>     
>    https://spdx.org/licenses/X11.html#licenseText
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Re: [patch V2 3/7] LICENSES: Add Apache 2.0 license text

[Greg Kroah-Hartman]

On Wed, Apr 25, 2018 at 10:30:23PM +0200, Thomas Gleixner wrote:
> Add the full text of the Apache License version 2 to the kernel tree.  It
> was copied directly from:
>     
>    https://spdx.org/licenses/Apache-2.0.html#licenseText
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Re: [patch V2 4/7] LICENSES: Add CDDL-1.0 license text

[Greg Kroah-Hartman]

On Wed, Apr 25, 2018 at 10:30:24PM +0200, Thomas Gleixner wrote:
> Add the full text of the CDDL-1.0 to the kernel tree.  It was copied directly
> from:
>     
>    https://spdx.org/licenses/CDDL-1.0.html#licenseText
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Re: [patch V2 5/7] LICENSES: Add CC-BY-SA-4.0 license text

[Greg Kroah-Hartman]

On Wed, Apr 25, 2018 at 10:30:25PM +0200, Thomas Gleixner wrote:
> Add the full text of the CC-BY-SA-4.0 license to the kernel tree.  It was
> copied directly from:
>     
>    https://spdx.org/licenses/CC-BY-SA-4.0.html#licenseText
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Re: [patch V2 6/7] LICENSES: Add Linux-OpenIB license text

[Greg Kroah-Hartman]

On Wed, Apr 25, 2018 at 10:30:26PM +0200, Thomas Gleixner wrote:
> The infiniband code uses a variant of the OpenIB license. This license is
> BSD-2-Clause with the MIT disclaimer. The linux kernel uses this license
> extensively throughout the driver subsystem since 2005. Note that the
> OpenIB.org license is a true match to BSD-2-Clause.
> 
> The license text was copied from:
> 
>     https://spdx.org/licenses/Linux-OpenIB.html#licenseText
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Re: [patch V2 7/7] scripts: Add SPDX checker script

[Greg Kroah-Hartman]

On Wed, Apr 25, 2018 at 10:30:27PM +0200, Thomas Gleixner wrote:
> The SPDX-License-Identifiers are growing in the kernel and so grow
> expression failures and license IDs are used which have no corresponding
> license text file in the LICENSES directory.
> 
> Add a script which gathers information from the LICENSES directory,
> i.e. the various tags in the licenses and exception files and then scans
> either input from stdin, which it treats as a single file or if started
> without arguments it scans the full kernel tree.
> 
> It checks whether the license expression syntax is correct and also
> validates whether the license identifiers used in the expressions are
> available in the LICENSES files.
> 
> # scripts/spdxcheck.py -h
> usage: spdxcheck.py [-h] [-m MAXLINES] [-s] [-v]
> 
> SPDX expression checker
> 
> optional arguments:
>   -h, --help            show this help message and exit
>   -m MAXLINES, --maxlines MAXLINES
>                         Maximum number of lines to scan in a file. Default 15
>   -s, --stdin           Read from stdin. If not set scan full git tree.
>   -v, --verbose         Verbose statistics output
> 
> 
> # scripts/spdxcheck.py -s <COPYING
> 
> # scripts/spdxcheck.py -s <include/dt-bindings/reset/amlogic,meson-axg-reset.h
> include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD
> 
> # scripts/spdxcheck.py
> arch/arm/mach-s3c24xx/h1940-bluetooth.c: 1:28 Invalid License ID: GPL-1.0
> arch/x86/kernel/jailhouse.c: 1:28 Invalid License ID: GPL2.0
> drivers/pinctrl/sh-pfc/pfc-r8a77965.c: 1:28 Invalid License ID: GPL-2.
> include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD
> arch/x86/include/asm/jailhouse_para.h: 1:28 Invalid License ID: GPL2.0
> 
> # time scripts/spdxcheck.py -v
> arch/arm/mach-s3c24xx/h1940-bluetooth.c: 1:28 Invalid License ID: GPL-1.0
> arch/x86/kernel/jailhouse.c: 1:28 Invalid License ID: GPL2.0
> drivers/pinctrl/sh-pfc/pfc-r8a77965.c: 1:28 Invalid License ID: GPL-2.
> include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD
> arch/x86/include/asm/jailhouse_para.h: 1:28 Invalid License ID: GPL2.0
> 
> License files:               14
> Exception files:              1
> License IDs                  19
> Exception IDs                 1
> 
> Files checked:            61332
> Lines checked:           669181
> Files with SPDX:          16169
> Files with errors:            5
> 
> real	0m2.642s
> user	0m2.231s
> sys	0m0.467s
> 
> That's a full tree sweep on my laptop. Note, this runs single threaded.
> 
> It scans by default the first 15 lines for a SPDX identifier where the
> current max inside a top comment is at line 10. But that's going to be
> faster once the identifiers are all in the first two lines as documented.
> 
> The python wizards will surely know how to do that smarter and faster, but
> its at least better than no tool at all.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Very nice, thanks for writing this.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Re: [patch V2 1/7] LICENSES/GPL2.0: Add GPL-2.0-only/or-later as valid identifiers

[Mauro Carvalho Chehab]

Em Wed, 25 Apr 2018 22:30:21 +0200
Thomas Gleixner <tglx@linutronix.de> escreveu:

> From: Thomas Gleixner tglx@linutronix.de
> 
> Quite some files have been flagged with the new GPL-2.0-only and
> GPL-2.0-or-later identifiers which replace the original GPL-2.0 and
> GPL-2.0+ identifiers in the SPDX license identifier specification, but the
> identifiers are not mentioned as valid in the GPL-2.0 license file.
> 
> Add them to the license file and to the Linux-syscall-note exception to
> make everything consistent again.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Hans Verkuil <hans.verkuil@cisco.com>
> Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

> 
> diff --git a/LICENSES/exceptions/Linux-syscall-note b/LICENSES/exceptions/Linux-syscall-note
> index 6b60b61be4e9..9abdad71fafd 100644
> --- a/LICENSES/exceptions/Linux-syscall-note
> +++ b/LICENSES/exceptions/Linux-syscall-note
> @@ -1,6 +1,6 @@
>  SPDX-Exception-Identifier: Linux-syscall-note
>  SPDX-URL: https://spdx.org/licenses/Linux-syscall-note.html
> -SPDX-Licenses: GPL-2.0, GPL-2.0+, GPL-1.0+, LGPL-2.0, LGPL-2.0+, LGPL-2.1, LGPL-2.1+
> +SPDX-Licenses: GPL-2.0, GPL-2.0+, GPL-1.0+, LGPL-2.0, LGPL-2.0+, LGPL-2.1, LGPL-2.1+, GPL-2.0-only, GPL-2.0-or-later
>  Usage-Guide:
>    This exception is used together with one of the above SPDX-Licenses
>    to mark user space API (uapi) header files so they can be included
> diff --git a/LICENSES/preferred/GPL-2.0 b/LICENSES/preferred/GPL-2.0
> index b8db91d3a1cb..ff0812fd89cc 100644
> --- a/LICENSES/preferred/GPL-2.0
> +++ b/LICENSES/preferred/GPL-2.0
> @@ -1,5 +1,7 @@
>  Valid-License-Identifier: GPL-2.0
> +Valid-License-Identifier: GPL-2.0-only
>  Valid-License-Identifier: GPL-2.0+
> +Valid-License-Identifier: GPL-2.0-or-later
>  SPDX-URL: https://spdx.org/licenses/GPL-2.0.html
>  Usage-Guide:
>    To use this license in source code, put one of the following SPDX
> @@ -7,8 +9,12 @@ Usage-Guide:
>    guidelines in the licensing rules documentation.
>    For 'GNU General Public License (GPL) version 2 only' use:
>      SPDX-License-Identifier: GPL-2.0
> +  or
> +    SPDX-License-Identifier: GPL-2.0-only
>    For 'GNU General Public License (GPL) version 2 or any later version' use:
>      SPDX-License-Identifier: GPL-2.0+
> +  or
> +    SPDX-License-Identifier: GPL-2.0-or-later
>  License-Text:
>  
>  		    GNU GENERAL PUBLIC LICENSE
> 
> 



Thanks,
Mauro

[patch V3 7/7] scripts: Add SPDX checker script

[Thomas Gleixner]

The SPDX-License-Identifiers are growing in the kernel and so grow
expression failures and license IDs are used which have no corresponding
license text file in the LICENSES directory.

Add a script which gathers information from the LICENSES directory,
i.e. the various tags in the licenses and exception files and then scans
either input from stdin, which it treats as a single file or if started
without arguments it scans the full kernel tree.

It checks whether the license expression syntax is correct and also
validates whether the license identifiers used in the expressions are
available in the LICENSES files.

scripts/spdxcheck.py -h
usage: spdxcheck.py [-h] [-m MAXLINES] [-v] [path [path ...]]

SPDX expression checker

positional arguments:
  path                  Check path or file. If not given full git tree scan.
                        For stdin use "-"

optional arguments:
  -h, --help            show this help message and exit
  -m MAXLINES, --maxlines MAXLINES
                        Maximum number of lines to scan in a file. Default 15
  -v, --verbose         Verbose statistics output

# scripts/spdxcheck.py - <COPYING

# scripts/spdxcheck.py - <include/dt-bindings/reset/amlogic,meson-axg-reset.h
include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD

# scripts/spdxcheck.py include/ drivers/pinctrl
drivers/pinctrl/sh-pfc/pfc-r8a77965.c: 1:28 Invalid License ID: GPL-2.
include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD

# scripts/spdxcheck.py include/ arch/x86/kernel/jailhouse.c
arch/x86/kernel/jailhouse.c: 1:28 Invalid License ID: GPL2.0
include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD

# scripts/spdxcheck.py
arch/arm/mach-s3c24xx/h1940-bluetooth.c: 1:28 Invalid License ID: GPL-1.0
arch/x86/kernel/jailhouse.c: 1:28 Invalid License ID: GPL2.0
drivers/pinctrl/sh-pfc/pfc-r8a77965.c: 1:28 Invalid License ID: GPL-2.
include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD
arch/x86/include/asm/jailhouse_para.h: 1:28 Invalid License ID: GPL2.0

# time scripts/spdxcheck.py -v
arch/arm/mach-s3c24xx/h1940-bluetooth.c: 1:28 Invalid License ID: GPL-1.0
arch/x86/kernel/jailhouse.c: 1:28 Invalid License ID: GPL2.0
drivers/pinctrl/sh-pfc/pfc-r8a77965.c: 1:28 Invalid License ID: GPL-2.
include/dt-bindings/reset/amlogic,meson-axg-reset.h: 9:41 Invalid License ID: BSD
arch/x86/include/asm/jailhouse_para.h: 1:28 Invalid License ID: GPL2.0

License files:               14
Exception files:              1
License IDs                  19
Exception IDs                 1

Files checked:            61332
Lines checked:           669181
Files with SPDX:          16169
Files with errors:            5

real	0m2.642s
user	0m2.231s
sys	0m0.467s

That's a full tree sweep on my laptop. Note, this runs single threaded.

It scans by default the first 15 lines for a SPDX identifier where the
current max inside a top comment is at line 10. But that's going to be
faster once the identifiers are all in the first two lines as documented.

The python wizards will surely know how to do that smarter and faster, but
its at least better than no tool at all.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

v2 -> v3:
 Changed the input selection so files, directories and the full git tree can
 be checked. Selection of stdin is now '-' instead of '-s'

 scripts/spdxcheck.py |  284 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 284 insertions(+)

--- /dev/null
+++ b/scripts/spdxcheck.py
@@ -0,0 +1,284 @@
+#!/usr/bin/env python
+# SPDX-License-Identifier: GPL2.0
+# Copyright Thomas Gleixner <tglx@linutronix.de>
+
+from argparse import ArgumentParser
+from ply import lex, yacc
+import traceback
+import sys
+import git
+import re
+import os
+
+class ParserException(Exception):
+    def __init__(self, tok, txt):
+        self.tok = tok
+        self.txt = txt
+
+class SPDXException(Exception):
+    def __init__(self, el, txt):
+        self.el = el
+        self.txt = txt
+
+class SPDXdata(object):
+    def __init__(self):
+        self.license_files = 0
+        self.exception_files = 0
+        self.licenses = [ ]
+        self.exceptions = { }
+
+# Read the spdx data from the LICENSES directory
+def read_spdxdata(repo):
+
+    # The subdirectories of LICENSES in the kernel source
+    license_dirs = [ "preferred", "other", "exceptions" ]
+    lictree = repo.heads.master.commit.tree['LICENSES']
+
+    spdx = SPDXdata()
+
+    for d in license_dirs:
+        for el in lictree[d].traverse():
+            if not os.path.isfile(el.path):
+                continue
+
+            exception = None
+            for l in open(el.path).readlines():
+                if l.startswith('Valid-License-Identifier:'):
+                    lid = l.split(':')[1].strip().upper()
+                    if lid in spdx.licenses:
+                        raise SPDXException(el, 'Duplicate License Identifier: %s' %lid)
+                    else:
+                        spdx.licenses.append(lid)
+
+                elif l.startswith('SPDX-Exception-Identifier:'):
+                    exception = l.split(':')[1].strip().upper()
+                    spdx.exceptions[exception] = []
+
+                elif l.startswith('SPDX-Licenses:'):
+                    for lic in l.split(':')[1].upper().strip().replace(' ', '').replace('\t', '').split(','):
+                        if not lic in spdx.licenses:
+                            raise SPDXException(None, 'Exception %s missing license %s' %(ex, lic))
+                        spdx.exceptions[exception].append(lic)
+
+                elif l.startswith("License-Text:"):
+                    if exception:
+                        if not len(spdx.exceptions[exception]):
+                            raise SPDXException(el, 'Exception %s is missing SPDX-Licenses' %excid)
+                        spdx.exception_files += 1
+                    else:
+                        spdx.license_files += 1
+                    break
+    return spdx
+
+class id_parser(object):
+
+    reserved = [ 'AND', 'OR', 'WITH' ]
+    tokens = [ 'LPAR', 'RPAR', 'ID', 'EXC' ] + reserved
+
+    precedence = ( ('nonassoc', 'AND', 'OR'), )
+
+    t_ignore = ' \t'
+
+    def __init__(self, spdx):
+        self.spdx = spdx
+        self.lasttok = None
+        self.lastid = None
+        self.lexer = lex.lex(module = self, reflags = re.UNICODE)
+        # Initialize the parser. No debug file and no parser rules stored on disk
+        # The rules are small enough to be generated on the fly
+        self.parser = yacc.yacc(module = self, write_tables = False, debug = False)
+        self.lines_checked = 0
+        self.checked = 0
+        self.spdx_valid = 0
+        self.spdx_errors = 0
+        self.curline = 0
+        self.deepest = 0
+
+    # Validate License and Exception IDs
+    def validate(self, tok):
+        id = tok.value.upper()
+        if tok.type == 'ID':
+            if not id in self.spdx.licenses:
+                raise ParserException(tok, 'Invalid License ID')
+            self.lastid = id
+        elif tok.type == 'EXC':
+            if not self.spdx.exceptions.has_key(id):
+                raise ParserException(tok, 'Invalid Exception ID')
+            if self.lastid not in self.spdx.exceptions[id]:
+                raise ParserException(tok, 'Exception not valid for license %s' %self.lastid)
+            self.lastid = None
+        elif tok.type != 'WITH':
+            self.lastid = None
+
+    # Lexer functions
+    def t_RPAR(self, tok):
+        r'\)'
+        self.lasttok = tok.type
+        return tok
+
+    def t_LPAR(self, tok):
+        r'\('
+        self.lasttok = tok.type
+        return tok
+
+    def t_ID(self, tok):
+        r'[A-Za-z.0-9\-+]+'
+
+        if self.lasttok == 'EXC':
+            print(tok)
+            raise ParserException(tok, 'Missing parentheses')
+
+        tok.value = tok.value.strip()
+        val = tok.value.upper()
+
+        if val in self.reserved:
+            tok.type = val
+        elif self.lasttok == 'WITH':
+            tok.type = 'EXC'
+
+        self.lasttok = tok.type
+        self.validate(tok)
+        return tok
+
+    def t_error(self, tok):
+        raise ParserException(tok, 'Invalid token')
+
+    def p_expr(self, p):
+        '''expr : ID
+                | ID WITH EXC
+                | expr AND expr
+                | expr OR expr
+                | LPAR expr RPAR'''
+        pass
+
+    def p_error(self, p):
+        if not p:
+            raise ParserException(None, 'Unfinished license expression')
+        else:
+            raise ParserException(p, 'Syntax error')
+
+    def parse(self, expr):
+        self.lasttok = None
+        self.lastid = None
+        self.parser.parse(expr, lexer = self.lexer)
+
+    def parse_lines(self, fd, maxlines, fname):
+        self.checked += 1
+        self.curline = 0
+        try:
+            for line in fd:
+                self.curline += 1
+                if self.curline > maxlines:
+                    break
+                self.lines_checked += 1
+                if line.find("SPDX-License-Identifier:") < 0:
+                    continue
+                expr = line.split(':')[1].replace('*/', '').strip()
+                self.parse(expr)
+                self.spdx_valid += 1
+                #
+                # Should we check for more SPDX ids in the same file and
+                # complain if there are any?
+                #
+                break
+
+        except ParserException as pe:
+            if pe.tok:
+                col = line.find(expr) + pe.tok.lexpos
+                tok = pe.tok.value
+                sys.stdout.write('%s: %d:%d %s: %s\n' %(fname, self.curline, col, pe.txt, tok))
+            else:
+                sys.stdout.write('%s: %d:0 %s\n' %(fname, self.curline, col, pe.txt))
+            self.spdx_errors += 1
+
+def scan_git_tree(tree):
+    for el in tree.traverse():
+        # Exclude stuff which would make pointless noise
+        # FIXME: Put this somewhere more sensible
+        if el.path.startswith("LICENSES"):
+            continue
+        if el.path.find("license-rules.rst") >= 0:
+            continue
+        if el.path == 'scripts/checkpatch.pl':
+            continue
+        if not os.path.isfile(el.path):
+            continue
+        parser.parse_lines(open(el.path), args.maxlines, el.path)
+
+def scan_git_subtree(tree, path):
+    for p in path.strip('/').split('/'):
+        tree = tree[p]
+    scan_git_tree(tree)
+
+if __name__ == '__main__':
+
+    ap = ArgumentParser(description='SPDX expression checker')
+    ap.add_argument('path', nargs='*', help='Check path or file. If not given full git tree scan. For stdin use "-"')
+    ap.add_argument('-m', '--maxlines', type=int, default=15,
+                    help='Maximum number of lines to scan in a file. Default 15')
+    ap.add_argument('-v', '--verbose', action='store_true', help='Verbose statistics output')
+    args = ap.parse_args()
+
+    # Sanity check path arguments
+    if '-' in args.path and len(args.path) > 1:
+        sys.stderr.write('stdin input "-" must be the only path argument\n')
+        sys.exit(1)
+
+    try:
+        # Use git to get the valid license expressions
+        repo = git.Repo(os.getcwd())
+        assert not repo.bare
+
+        # Initialize SPDX data
+        spdx = read_spdxdata(repo)
+
+        # Initilize the parser
+        parser = id_parser(spdx)
+
+    except SPDXException as se:
+        if se.el:
+            sys.stderr.write('%s: %s\n' %(se.el.path, se.txt))
+        else:
+            sys.stderr.write('%s\n' %se.txt)
+        sys.exit(1)
+
+    except Exception as ex:
+        sys.stderr.write('FAIL: %s\n' %ex)
+        sys.stderr.write('%s\n' %traceback.format_exc())
+        sys.exit(1)
+
+    try:
+        if len(args.path) and args.path[0] == '-':
+            parser.parse_lines(sys.stdin, args.maxlines, '-')
+        else:
+            if args.path:
+                for p in args.path:
+                    if os.path.isfile(p):
+                        parser.parse_lines(open(p), args.maxlines, p)
+                    elif os.path.isdir(p):
+                        scan_git_subtree(repo.head.reference.commit.tree, p)
+                    else:
+                        sys.stderr.write('path %s does not exist\n' %p)
+                        sys.exit(1)
+            else:
+                # Full git tree scan
+                scan_git_tree(repo.head.commit.tree)
+
+            if args.verbose:
+                sys.stderr.write('\n')
+                sys.stderr.write('License files:     %12d\n' %spdx.license_files)
+                sys.stderr.write('Exception files:   %12d\n' %spdx.exception_files)
+                sys.stderr.write('License IDs        %12d\n' %len(spdx.licenses))
+                sys.stderr.write('Exception IDs      %12d\n' %len(spdx.exceptions))
+                sys.stderr.write('\n')
+                sys.stderr.write('Files checked:     %12d\n' %parser.checked)
+                sys.stderr.write('Lines checked:     %12d\n' %parser.lines_checked)
+                sys.stderr.write('Files with SPDX:   %12d\n' %parser.spdx_valid)
+                sys.stderr.write('Files with errors: %12d\n' %parser.spdx_errors)
+
+            sys.exit(0)
+
+    except Exception as ex:
+        sys.stderr.write('FAIL: %s\n' %ex)
+        sys.stderr.write('%s\n' %traceback.format_exc())
+        sys.exit(1)

Re: [patch V2 6/7] LICENSES: Add Linux-OpenIB license text

[Kate Stewart]

On Wed, Apr 25, 2018 at 3:30 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
> The infiniband code uses a variant of the OpenIB license. This license is
> BSD-2-Clause with the MIT disclaimer. The linux kernel uses this license
> extensively throughout the driver subsystem since 2005. Note that the
> OpenIB.org license is a true match to BSD-2-Clause.
>
> The license text was copied from:
>
>     https://spdx.org/licenses/Linux-OpenIB.html#licenseText
>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>

Re: [patch V2 5/7] LICENSES: Add CC-BY-SA-4.0 license text

[Kate Stewart]

On Thu, Apr 26, 2018 at 2:01 AM, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
> On Wed, Apr 25, 2018 at 10:30:25PM +0200, Thomas Gleixner wrote:
>> Add the full text of the CC-BY-SA-4.0 license to the kernel tree.  It was
>> copied directly from:
>>
>>    https://spdx.org/licenses/CC-BY-SA-4.0.html#licenseText
>>
>> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
>
> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>

Re: [patch V2 4/7] LICENSES: Add CDDL-1.0 license text

[Kate Stewart]

On Thu, Apr 26, 2018 at 2:01 AM, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
> On Wed, Apr 25, 2018 at 10:30:24PM +0200, Thomas Gleixner wrote:
>> Add the full text of the CDDL-1.0 to the kernel tree.  It was copied directly
>> from:
>>
>>    https://spdx.org/licenses/CDDL-1.0.html#licenseText
>>
>> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
>
> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>

Re: [patch V2 3/7] LICENSES: Add Apache 2.0 license text

[Kate Stewart]

On Thu, Apr 26, 2018 at 2:00 AM, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
> On Wed, Apr 25, 2018 at 10:30:23PM +0200, Thomas Gleixner wrote:
>> Add the full text of the Apache License version 2 to the kernel tree.  It
>> was copied directly from:
>>
>>    https://spdx.org/licenses/Apache-2.0.html#licenseText
>>
>> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
>
> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>

Re: [patch V3 7/7] scripts: Add SPDX checker script

[Greg Kroah-Hartman]

On Thu, Apr 26, 2018 at 03:54:27PM +0200, Thomas Gleixner wrote:
> +#!/usr/bin/env python
> +# SPDX-License-Identifier: GPL2.0

You didn't run the tool on itself :)

Other than that, looks good, if you fix the above line feel free to add:

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Re: [patch V3 7/7] scripts: Add SPDX checker script

[Thomas Gleixner]

On Thu, 26 Apr 2018, Greg Kroah-Hartman wrote:

> On Thu, Apr 26, 2018 at 03:54:27PM +0200, Thomas Gleixner wrote:
> > +#!/usr/bin/env python
> > +# SPDX-License-Identifier: GPL2.0
> 
> You didn't run the tool on itself :)

Quod erat demonstrandum.

Re: [patch V2 7/7] scripts: Add SPDX checker script

[Philippe Ombredanne]

Thomas,
Sorry for the very late reply!

On Wed, Apr 25, 2018 at 10:30 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
> The SPDX-License-Identifiers are growing in the kernel and so grow
> expression failures and license IDs are used which have no corresponding
> license text file in the LICENSES directory.
>
> Add a script which gathers information from the LICENSES directory,
> i.e. the various tags in the licenses and exception files and then scans
> either input from stdin, which it treats as a single file or if started
> without arguments it scans the full kernel tree.
>
> It checks whether the license expression syntax is correct and also
> validates whether the license identifiers used in the expressions are
> available in the LICENSES files.

Looking good to me! And the use of ply is sleek.
-- 
Cordially
Philippe Ombredanne

Re: [patch V2 7/7] scripts: Add SPDX checker script

[Geert Uytterhoeven]

On Mon, May 14, 2018 at 4:38 PM Philippe Ombredanne
<pombredanne@nexb.com> wrote:
> On Wed, Apr 25, 2018 at 10:30 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
> > The SPDX-License-Identifiers are growing in the kernel and so grow
> > expression failures and license IDs are used which have no corresponding
> > license text file in the LICENSES directory.
> >
> > Add a script which gathers information from the LICENSES directory,
> > i.e. the various tags in the licenses and exception files and then scans
> > either input from stdin, which it treats as a single file or if started
> > without arguments it scans the full kernel tree.
> >
> > It checks whether the license expression syntax is correct and also
> > validates whether the license identifiers used in the expressions are
> > available in the LICENSES files.
>
> Looking good to me! And the use of ply is sleek.

For the record (currently Google doesn't find this issue yet):

    ImportError: No module named ply

$ sudo apt-get install python-ply

    ImportError: No module named git

$ sudo apt-get install python-git

Works!

Apparently I didn't have any of these two packages installed on any of my
Ubuntu 18.04LTS and 16.04LTS machines...

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds