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 22:07:57 +08:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2010-05-19 12:14:04 +08:00
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#ifndef _N2_CORE_H
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#define _N2_CORE_H
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#ifndef __ASSEMBLY__
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struct ino_blob {
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u64 intr;
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u64 ino;
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};
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struct spu_mdesc_info {
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u64 cfg_handle;
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struct ino_blob *ino_table;
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int num_intrs;
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};
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struct n2_crypto {
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struct spu_mdesc_info cwq_info;
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struct list_head cwq_list;
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};
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struct n2_mau {
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struct spu_mdesc_info mau_info;
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struct list_head mau_list;
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};
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#define CWQ_ENTRY_SIZE 64
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#define CWQ_NUM_ENTRIES 64
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#define MAU_ENTRY_SIZE 64
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#define MAU_NUM_ENTRIES 64
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struct cwq_initial_entry {
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u64 control;
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u64 src_addr;
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u64 auth_key_addr;
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u64 auth_iv_addr;
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u64 final_auth_state_addr;
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u64 enc_key_addr;
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u64 enc_iv_addr;
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u64 dest_addr;
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};
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struct cwq_ext_entry {
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u64 len;
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u64 src_addr;
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u64 resv1;
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u64 resv2;
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u64 resv3;
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u64 resv4;
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u64 resv5;
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u64 resv6;
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};
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struct cwq_final_entry {
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u64 control;
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u64 src_addr;
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u64 resv1;
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u64 resv2;
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u64 resv3;
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u64 resv4;
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u64 resv5;
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u64 resv6;
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};
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#define CONTROL_LEN 0x000000000000ffffULL
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#define CONTROL_LEN_SHIFT 0
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#define CONTROL_HMAC_KEY_LEN 0x0000000000ff0000ULL
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#define CONTROL_HMAC_KEY_LEN_SHIFT 16
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#define CONTROL_ENC_TYPE 0x00000000ff000000ULL
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#define CONTROL_ENC_TYPE_SHIFT 24
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#define ENC_TYPE_ALG_RC4_STREAM 0x00ULL
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#define ENC_TYPE_ALG_RC4_NOSTREAM 0x04ULL
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#define ENC_TYPE_ALG_DES 0x08ULL
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#define ENC_TYPE_ALG_3DES 0x0cULL
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#define ENC_TYPE_ALG_AES128 0x10ULL
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#define ENC_TYPE_ALG_AES192 0x14ULL
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#define ENC_TYPE_ALG_AES256 0x18ULL
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#define ENC_TYPE_ALG_RESERVED 0x1cULL
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#define ENC_TYPE_ALG_MASK 0x1cULL
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#define ENC_TYPE_CHAINING_ECB 0x00ULL
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#define ENC_TYPE_CHAINING_CBC 0x01ULL
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#define ENC_TYPE_CHAINING_CFB 0x02ULL
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#define ENC_TYPE_CHAINING_COUNTER 0x03ULL
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#define ENC_TYPE_CHAINING_MASK 0x03ULL
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#define CONTROL_AUTH_TYPE 0x0000001f00000000ULL
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#define CONTROL_AUTH_TYPE_SHIFT 32
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#define AUTH_TYPE_RESERVED 0x00ULL
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#define AUTH_TYPE_MD5 0x01ULL
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#define AUTH_TYPE_SHA1 0x02ULL
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#define AUTH_TYPE_SHA256 0x03ULL
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#define AUTH_TYPE_CRC32 0x04ULL
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#define AUTH_TYPE_HMAC_MD5 0x05ULL
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#define AUTH_TYPE_HMAC_SHA1 0x06ULL
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#define AUTH_TYPE_HMAC_SHA256 0x07ULL
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#define AUTH_TYPE_TCP_CHECKSUM 0x08ULL
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#define AUTH_TYPE_SSL_HMAC_MD5 0x09ULL
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#define AUTH_TYPE_SSL_HMAC_SHA1 0x0aULL
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#define AUTH_TYPE_SSL_HMAC_SHA256 0x0bULL
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#define CONTROL_STRAND 0x000000e000000000ULL
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#define CONTROL_STRAND_SHIFT 37
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#define CONTROL_HASH_LEN 0x0000ff0000000000ULL
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#define CONTROL_HASH_LEN_SHIFT 40
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#define CONTROL_INTERRUPT 0x0001000000000000ULL
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#define CONTROL_STORE_FINAL_AUTH_STATE 0x0002000000000000ULL
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#define CONTROL_RESERVED 0x001c000000000000ULL
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#define CONTROL_HV_DONE 0x0004000000000000ULL
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#define CONTROL_HV_PROTOCOL_ERROR 0x0008000000000000ULL
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#define CONTROL_HV_HARDWARE_ERROR 0x0010000000000000ULL
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#define CONTROL_END_OF_BLOCK 0x0020000000000000ULL
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#define CONTROL_START_OF_BLOCK 0x0040000000000000ULL
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#define CONTROL_ENCRYPT 0x0080000000000000ULL
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#define CONTROL_OPCODE 0xff00000000000000ULL
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#define CONTROL_OPCODE_SHIFT 56
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#define OPCODE_INPLACE_BIT 0x80ULL
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#define OPCODE_SSL_KEYBLOCK 0x10ULL
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#define OPCODE_COPY 0x20ULL
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#define OPCODE_ENCRYPT 0x40ULL
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#define OPCODE_AUTH_MAC 0x41ULL
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#endif /* !(__ASSEMBLY__) */
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/* NCS v2.0 hypervisor interfaces */
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#define HV_NCS_QTYPE_MAU 0x01
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#define HV_NCS_QTYPE_CWQ 0x02
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/* ncs_qconf()
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* TRAP: HV_FAST_TRAP
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* FUNCTION: HV_FAST_NCS_QCONF
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* ARG0: Queue type (HV_NCS_QTYPE_{MAU,CWQ})
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* ARG1: Real address of queue, or handle for unconfigure
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* ARG2: Number of entries in queue, zero for unconfigure
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* RET0: status
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* RET1: queue handle
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*
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* Configure a queue in the stream processing unit.
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*
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* The real address given as the base must be 64-byte
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* aligned.
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*
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* The queue size can range from a minimum of 2 to a maximum
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* of 64. The queue size must be a power of two.
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*
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* To unconfigure a queue, specify a length of zero and place
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* the queue handle into ARG1.
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*
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* On configure success the hypervisor will set the FIRST, HEAD,
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* and TAIL registers to the address of the first entry in the
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* queue. The LAST register will be set to point to the last
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* entry in the queue.
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*/
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#define HV_FAST_NCS_QCONF 0x111
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/* ncs_qinfo()
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* TRAP: HV_FAST_TRAP
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* FUNCTION: HV_FAST_NCS_QINFO
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* ARG0: Queue handle
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* RET0: status
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* RET1: Queue type (HV_NCS_QTYPE_{MAU,CWQ})
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* RET2: Queue base address
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* RET3: Number of entries
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*/
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#define HV_FAST_NCS_QINFO 0x112
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/* ncs_gethead()
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* TRAP: HV_FAST_TRAP
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* FUNCTION: HV_FAST_NCS_GETHEAD
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* ARG0: Queue handle
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* RET0: status
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* RET1: queue head offset
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*/
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#define HV_FAST_NCS_GETHEAD 0x113
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/* ncs_gettail()
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* TRAP: HV_FAST_TRAP
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* FUNCTION: HV_FAST_NCS_GETTAIL
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* ARG0: Queue handle
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* RET0: status
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* RET1: queue tail offset
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*/
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#define HV_FAST_NCS_GETTAIL 0x114
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/* ncs_settail()
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* TRAP: HV_FAST_TRAP
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* FUNCTION: HV_FAST_NCS_SETTAIL
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* ARG0: Queue handle
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* ARG1: New tail offset
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* RET0: status
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*/
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#define HV_FAST_NCS_SETTAIL 0x115
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/* ncs_qhandle_to_devino()
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* TRAP: HV_FAST_TRAP
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* FUNCTION: HV_FAST_NCS_QHANDLE_TO_DEVINO
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* ARG0: Queue handle
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* RET0: status
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* RET1: devino
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*/
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#define HV_FAST_NCS_QHANDLE_TO_DEVINO 0x116
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/* ncs_sethead_marker()
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* TRAP: HV_FAST_TRAP
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* FUNCTION: HV_FAST_NCS_SETHEAD_MARKER
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* ARG0: Queue handle
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* ARG1: New head offset
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* RET0: status
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*/
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#define HV_FAST_NCS_SETHEAD_MARKER 0x117
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#ifndef __ASSEMBLY__
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extern unsigned long sun4v_ncs_qconf(unsigned long queue_type,
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unsigned long queue_ra,
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unsigned long num_entries,
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unsigned long *qhandle);
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extern unsigned long sun4v_ncs_qinfo(unsigned long qhandle,
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unsigned long *queue_type,
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unsigned long *queue_ra,
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unsigned long *num_entries);
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extern unsigned long sun4v_ncs_gethead(unsigned long qhandle,
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unsigned long *head);
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extern unsigned long sun4v_ncs_gettail(unsigned long qhandle,
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unsigned long *tail);
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extern unsigned long sun4v_ncs_settail(unsigned long qhandle,
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unsigned long tail);
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extern unsigned long sun4v_ncs_qhandle_to_devino(unsigned long qhandle,
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unsigned long *devino);
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extern unsigned long sun4v_ncs_sethead_marker(unsigned long qhandle,
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unsigned long head);
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#endif /* !(__ASSEMBLY__) */
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#endif /* _N2_CORE_H */
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