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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-01 17:07:57 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-02 13:10:55 +0300
commitb24413180f5600bcb3bb70fbed5cf186b60864bd (patch)
tree4ebcae0dab27ee8bfcecb9a5daf65353c6dd7ed6 /drivers/crypto/caam
parentbb176f67090ca54869fc1262c913aa69d2ede070 (diff)
downloadlinux-b24413180f5600bcb3bb70fbed5cf186b60864bd.tar.xz
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/crypto/caam')
-rw-r--r--drivers/crypto/caam/Makefile1
-rw-r--r--drivers/crypto/caam/caamalg_desc.h1
-rw-r--r--drivers/crypto/caam/caampkc.h1
-rw-r--r--drivers/crypto/caam/compat.h1
-rw-r--r--drivers/crypto/caam/ctrl.h1
-rw-r--r--drivers/crypto/caam/desc.h1
-rw-r--r--drivers/crypto/caam/desc_constr.h1
-rw-r--r--drivers/crypto/caam/error.c1
-rw-r--r--drivers/crypto/caam/error.h1
-rw-r--r--drivers/crypto/caam/intern.h1
-rw-r--r--drivers/crypto/caam/jr.h1
-rw-r--r--drivers/crypto/caam/key_gen.c1
-rw-r--r--drivers/crypto/caam/key_gen.h1
-rw-r--r--drivers/crypto/caam/pdb.h1
-rw-r--r--drivers/crypto/caam/pkc_desc.c1
-rw-r--r--drivers/crypto/caam/qi.c1
-rw-r--r--drivers/crypto/caam/qi.h1
-rw-r--r--drivers/crypto/caam/regs.h1
-rw-r--r--drivers/crypto/caam/sg_sw_sec4.h1
19 files changed, 19 insertions, 0 deletions
diff --git a/drivers/crypto/caam/Makefile b/drivers/crypto/caam/Makefile
index 9e2e98856b9b..cb652ee7dfc8 100644
--- a/drivers/crypto/caam/Makefile
+++ b/drivers/crypto/caam/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
#
# Makefile for the CAAM backend and dependent components
#
diff --git a/drivers/crypto/caam/caamalg_desc.h b/drivers/crypto/caam/caamalg_desc.h
index 8731e4a7ff05..e412ec8f7005 100644
--- a/drivers/crypto/caam/caamalg_desc.h
+++ b/drivers/crypto/caam/caamalg_desc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Shared descriptors for aead, ablkcipher algorithms
*
diff --git a/drivers/crypto/caam/caampkc.h b/drivers/crypto/caam/caampkc.h
index 87ab75e9df43..fd145c46eae1 100644
--- a/drivers/crypto/caam/caampkc.h
+++ b/drivers/crypto/caam/caampkc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* caam - Freescale FSL CAAM support for Public Key Cryptography descriptors
*
diff --git a/drivers/crypto/caam/compat.h b/drivers/crypto/caam/compat.h
index 7149cd2492e0..5f2f1b288d37 100644
--- a/drivers/crypto/caam/compat.h
+++ b/drivers/crypto/caam/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2008-2011 Freescale Semiconductor, Inc.
*/
diff --git a/drivers/crypto/caam/ctrl.h b/drivers/crypto/caam/ctrl.h
index 7e7bf68c9ef5..be693a2cc25e 100644
--- a/drivers/crypto/caam/ctrl.h
+++ b/drivers/crypto/caam/ctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* CAAM control-plane driver backend public-level include definitions
*
diff --git a/drivers/crypto/caam/desc.h b/drivers/crypto/caam/desc.h
index 2e6766a1573f..6633fbb80e74 100644
--- a/drivers/crypto/caam/desc.h
+++ b/drivers/crypto/caam/desc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* CAAM descriptor composition header
* Definitions to support CAAM descriptor instruction generation
diff --git a/drivers/crypto/caam/desc_constr.h b/drivers/crypto/caam/desc_constr.h
index d8e83ca104e0..ba1ca0806f0a 100644
--- a/drivers/crypto/caam/desc_constr.h
+++ b/drivers/crypto/caam/desc_constr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* caam descriptor construction helper functions
*
diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c
index 3d639f3b45aa..8da88beb1abb 100644
--- a/drivers/crypto/caam/error.c
+++ b/drivers/crypto/caam/error.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* CAAM Error Reporting
*
diff --git a/drivers/crypto/caam/error.h b/drivers/crypto/caam/error.h
index 250e1a21c473..5aa332bac4b0 100644
--- a/drivers/crypto/caam/error.h
+++ b/drivers/crypto/caam/error.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* CAAM Error Reporting code header
*
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index a52361258d3a..91f1107276e5 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* CAAM/SEC 4.x driver backend
* Private/internal definitions between modules
diff --git a/drivers/crypto/caam/jr.h b/drivers/crypto/caam/jr.h
index 97113a6d6c58..eab611530f36 100644
--- a/drivers/crypto/caam/jr.h
+++ b/drivers/crypto/caam/jr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* CAAM public-level include definitions for the JobR backend
*
diff --git a/drivers/crypto/caam/key_gen.c b/drivers/crypto/caam/key_gen.c
index c425d4adaf2a..8c79c3a153dc 100644
--- a/drivers/crypto/caam/key_gen.c
+++ b/drivers/crypto/caam/key_gen.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* CAAM/SEC 4.x functions for handling key-generation jobs
*
diff --git a/drivers/crypto/caam/key_gen.h b/drivers/crypto/caam/key_gen.h
index 4628f389eb64..5db055c25bd2 100644
--- a/drivers/crypto/caam/key_gen.h
+++ b/drivers/crypto/caam/key_gen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* CAAM/SEC 4.x definitions for handling key-generation jobs
*
diff --git a/drivers/crypto/caam/pdb.h b/drivers/crypto/caam/pdb.h
index 31e59963f4d2..810f0bef0652 100644
--- a/drivers/crypto/caam/pdb.h
+++ b/drivers/crypto/caam/pdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* CAAM Protocol Data Block (PDB) definition header file
*
diff --git a/drivers/crypto/caam/pkc_desc.c b/drivers/crypto/caam/pkc_desc.c
index 9e2ce6fe2e43..2a8d87ea94bf 100644
--- a/drivers/crypto/caam/pkc_desc.c
+++ b/drivers/crypto/caam/pkc_desc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* caam - Freescale FSL CAAM support for Public Key Cryptography descriptors
*
diff --git a/drivers/crypto/caam/qi.c b/drivers/crypto/caam/qi.c
index e4cf00014233..f9a44f485aac 100644
--- a/drivers/crypto/caam/qi.c
+++ b/drivers/crypto/caam/qi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* CAAM/SEC 4.x QI transport/backend driver
* Queue Interface backend functionality
diff --git a/drivers/crypto/caam/qi.h b/drivers/crypto/caam/qi.h
index ecb21f207637..357b69f57072 100644
--- a/drivers/crypto/caam/qi.h
+++ b/drivers/crypto/caam/qi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Public definitions for the CAAM/QI (Queue Interface) backend.
*
diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index 17cfd23a38fa..fee363865d88 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* CAAM hardware register-level view
*
diff --git a/drivers/crypto/caam/sg_sw_sec4.h b/drivers/crypto/caam/sg_sw_sec4.h
index 936b1b630058..e586ffab8358 100644
--- a/drivers/crypto/caam/sg_sw_sec4.h
+++ b/drivers/crypto/caam/sg_sw_sec4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* CAAM/SEC 4.x functions for using scatterlists in caam driver
*