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>
2017-11-01 14:07:57 +00:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2012-05-15 18:34:29 +00:00
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#include <target/target_core_base.h>
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#include <linux/btree.h>
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/* length of ASCII WWPNs including pad */
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#define TCM_QLA2XXX_NAMELEN 32
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2014-05-23 09:00:56 +00:00
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/*
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* Number of pre-allocated per-session tags, based upon the worst-case
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* per port number of iocbs
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*/
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#define TCM_QLA2XXX_DEFAULT_TAGS 2088
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2012-05-15 18:34:29 +00:00
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#include "qla_target.h"
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struct tcm_qla2xxx_nacl {
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2015-04-13 17:51:16 +00:00
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struct se_node_acl se_node_acl;
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2012-05-15 18:34:29 +00:00
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/* From libfc struct fc_rport->port_id */
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u32 nport_id;
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/* Binary World Wide unique Node Name for remote FC Initiator Nport */
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u64 nport_wwnn;
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/* ASCII formatted WWPN for FC Initiator Nport */
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char nport_name[TCM_QLA2XXX_NAMELEN];
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2017-01-20 06:27:59 +00:00
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/* Pointer to fc_port */
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struct fc_port *fc_port;
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2012-05-15 18:34:29 +00:00
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/* Pointer to TCM FC nexus */
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struct se_session *nport_nexus;
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};
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struct tcm_qla2xxx_tpg_attrib {
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int generate_node_acls;
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int cache_dynamic_acls;
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int demo_mode_write_protect;
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int prod_mode_write_protect;
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2013-07-19 22:06:38 +00:00
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int demo_mode_login_only;
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2015-03-28 06:30:57 +00:00
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int fabric_prot_type;
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2016-05-10 08:23:17 +00:00
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int jam_host;
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2012-05-15 18:34:29 +00:00
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};
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struct tcm_qla2xxx_tpg {
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/* FC lport target portal group tag for TCM */
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u16 lport_tpgt;
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/* Atomic bit to determine TPG active status */
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atomic_t lport_tpg_enabled;
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/* Pointer back to tcm_qla2xxx_lport */
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struct tcm_qla2xxx_lport *lport;
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/* Used by tcm_qla2xxx_tpg_attrib_cit */
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struct tcm_qla2xxx_tpg_attrib tpg_attrib;
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/* Returned by tcm_qla2xxx_make_tpg() */
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struct se_portal_group se_tpg;
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2014-02-20 00:53:07 +00:00
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/* Items for dealing with configfs_depend_item */
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struct completion tpg_base_comp;
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struct work_struct tpg_base_work;
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2012-05-15 18:34:29 +00:00
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};
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struct tcm_qla2xxx_fc_loopid {
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struct se_node_acl *se_nacl;
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};
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struct tcm_qla2xxx_lport {
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/* Binary World Wide unique Port Name for FC Target Lport */
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u64 lport_wwpn;
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/* Binary World Wide unique Port Name for FC NPIV Target Lport */
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u64 lport_npiv_wwpn;
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/* Binary World Wide unique Node Name for FC NPIV Target Lport */
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u64 lport_npiv_wwnn;
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/* ASCII formatted WWPN for FC Target Lport */
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char lport_name[TCM_QLA2XXX_NAMELEN];
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tcm_qla2xxx: Format VPD page 83h SCSI name string according to SPC
My draft of SPC-4 says the following about the SCSI name string in
inquiry VPD page 83h:
The SCSI NAME STRING field starts with either:
a) the four UTF-8 characters 'eui.' concatenated with 16, 24, or
32 hexadecimal digits (i.e., the UTF-8 characters 0 through 9
and A through F) for an EUI-64 based identifier (see
7.8.6.5). The first hexadecimal digit shall be the most
significant four bits of the first byte (i.e., most significant
byte) of the EUI-64 based identifier;
b) the four UTF-8 characters 'naa.' concatenated with 16 or 32
hexadecimal digits for an NAA identifier (see 7.8.6.6). The
first hexadecimal digit shall be the most significant four bits
of the first byte (i.e., most significant byte) of the NAA
identifier; or
c) the four UTF-8 characters 'iqn.' concatenated with an iSCSI
Name for an iSCSI-name based identifier (see iSCSI).
However, the .tpg_get_wwn method for tcm_qla2xxx formats the WWN so
the SCSI name string looks like "52:4a:93:7d:24:5f:b2:12,t,0x0001".
This patch corrects the code so that VPD 83h gives a SPC-compliant
SCSI name string like "naa.524a937d245fb212,t,0x0001" while leavig
other uses alone (so configfs will still work with ':' separated WWNs).
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Arun Easi <arun.easi@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-10-11 20:41:31 +00:00
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/* ASCII formatted naa WWPN for VPD page 83 etc */
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char lport_naa_name[TCM_QLA2XXX_NAMELEN];
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2012-05-15 18:34:29 +00:00
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/* map for fc_port pointers in 24-bit FC Port ID space */
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struct btree_head32 lport_fcport_map;
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/* vmalloc-ed memory for fc_port pointers for 16-bit FC loop ID */
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struct tcm_qla2xxx_fc_loopid *lport_loopid_map;
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/* Pointer to struct scsi_qla_host from qla2xxx LLD */
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struct scsi_qla_host *qla_vha;
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/* Pointer to struct qla_tgt pointer */
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struct qla_tgt lport_qla_tgt;
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/* Pointer to TPG=1 for non NPIV mode */
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struct tcm_qla2xxx_tpg *tpg_1;
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/* Returned by tcm_qla2xxx_make_lport() */
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struct se_wwn lport_wwn;
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};
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