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/linux/arch/x86/crypto/
H A Dserpent-sse2-i586-asm_32.S1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Serpent Cipher 4-way parallel algorithm (i586/SSE2)
14 .file "serpent-sse2-i586-asm_32.S"
23 4-way SSE2 serpent
31 #define RE %xmm4 macro
55 psrld $(32 - 13), x4; \
60 psrld $(32 - 3), x4; \
65 psrld $(32 - 1), x4; \
73 psrld $(32 - 7), x4; \
87 psrld $(32 - 5), x4; \
[all …]
H A Dserpent-sse2-x86_64-asm_64.S1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Serpent Cipher 8-way parallel algorithm (x86_64/SSE2)
14 .file "serpent-sse2-x86_64-asm_64.S"
20 8-way SSE2 serpent
394 psrld $(32 - 13), x4 ## 1; \
399 psrld $(32 - 3), x4 ## 1; \
404 psrld $(32 - 13), x4 ## 2; \
409 psrld $(32 - 3), x4 ## 2; \
414 psrld $(32 - 1), x4 ## 1; \
424 psrld $(32 - 1), x4 ## 2; \
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H A Dserpent-avx2-asm_64.S1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
9 * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
14 #include "glue_helper-asm-avx2.S"
16 .file "serpent-avx2-asm_64.S"
386 vpsrld $(32 - 13), x0 ## 1, x0 ## 1; \
390 vpsrld $(32 - 3), x2 ## 1, x2 ## 1; \
394 vpsrld $(32 - 13), x0 ## 2, x0 ## 2; \
398 vpsrld $(32 - 3), x2 ## 2, x2 ## 2; \
402 vpsrld $(32 - 1), x1 ## 1, x1 ## 1; \
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/linux/arch/arm64/crypto/
H A Dsm3-neon-core.S1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * sm3-neon-core.S - SM3 secure hash using NEON instructions
45 #define re w7 macro
92 ror o, a, #(32 - n);
148 eor h, t3, t3, ror #(32-9); \
153 eor h, h, t3, ror #(32-17); /* P0(t3) => h */
166 /* Byte-swapped input address. */
172 (STACK_W + ((((round) / 3) - 4) % 2) * 64 + (offs) + ((widx) * 4))
174 /* Rounds 1-12, byte-swapped input block addresses. */
178 /* Rounds 1-12, expanded input block addresses. */
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/linux/fs/btrfs/
H A Dref-verify.c1 // SPDX-License-Identifier: GPL-2.0
10 #include "disk-io.h"
12 #include "delayed-ref.h"
13 #include "ref-verify.h"
63 * free it until we unmount the file system in order to make sure re-allocations
83 if (entry->bytenr < *bytenr) in block_entry_bytenr_key_cmp()
85 else if (entry->bytenr > *bytenr) in block_entry_bytenr_key_cmp()
86 return -1; in block_entry_bytenr_key_cmp()
95 return block_entry_bytenr_key_cmp(&new_entry->bytenr, existing); in block_entry_bytenr_cmp()
103 node = rb_find_add(&be->node, root, block_entry_bytenr_cmp); in insert_block_entry()
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/linux/scripts/
H A Dcheckstack.pl2 # SPDX-License-Identifier: GPL-2.0
9 # s390 port and big speedup by Arnd Bergmann <arnd@bergmann-dalldorf.de>
21 # objdump -d vmlinux | scripts/checkstack.pl [arch] [min_stack]
29 # $re is used for two matches:
30 # $& (whole re) matches the complete objdump line with the stack growth
34 # $& (whole re) matches the complete objdump line with the stack growth
40 my (@stack, $re, $dre, $sub, $x, $xs, $funcre, $min_stack);
44 $arch = `uname -m`;
53 $x = "[0-9a-f]"; # hex character
54 $xs = "[0-9a-f ]"; # hex character or space
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H A Dmacro_checker.py2 # SPDX-License-Identifier: GPL-2.0
9 import re
14 parser.add_argument("-v", "--verbose", action="store_true",
27 match = re.match(macro_pattern, macro_line)
29 macro_def = re.sub(macro_pattern, '', macro_line)
42 if (re.match(fp_pattern, macro_def)):
54 print(f"Argument {arg} is not used in function-line macro {identifier}")
66 macro = re.sub(comment_pattern1, '', macro)
67 macro = re.sub(comment_pattern2, '', macro)
88 cond_compile -= 1
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H A Dcheckkconfigsymbols.py2 # SPDX-License-Identifier: GPL-2.0-only
6 # (c) 2014-2017 Valentin Rothberg <valentinrothberg@gmail.com>
14 import re
23 SYMBOL = r"(?:\w*[A-Z0-9]\w*){2,}"
31 REGEX_FILE_KCONFIG = re.compile(r".*Kconfig[\.\w+\-]*$")
32 REGEX_SYMBOL = re.compile(r'(?!\B)' + SYMBOL + r'(?!\B)')
33 REGEX_SOURCE_SYMBOL = re.compile(SOURCE_SYMBOL)
34 REGEX_KCONFIG_DEF = re.compile(DEF)
35 REGEX_KCONFIG_EXPR = re.compile(EXPR)
36 REGEX_KCONFIG_STMT = re.compile(STMT)
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/linux/scripts/lib/kdoc/
H A Dkdoc_re.py2 # SPDX-License-Identifier: GPL-2.0
8 Those help caching regular expressions and do matching for kernel-doc.
11 import re
21 It calls re.compile for a given pattern. It also allows adding
30 Adds a new regex or re-use it from the cache.
34 self.regex = re.compile(string, flags=flags)
64 Handles a re
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H A Dkdoc_parser.py2 # SPDX-License-Identifier: GPL-2.0
16 import re
23 # Regular expressions used to parse kernel-doc markups at KernelDoc class.
43 # @{section-name}:
47 known_sections = KernRe(known_section_names, flags = re.I)
50 flags=re.I, cache=False)
57 attribute = KernRe(r"__attribute__\s*\(\([a-z0-
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/linux/tools/testing/selftests/bpf/
H A Dtest_bpftool_synctypes.py2 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
7 import re
15 os.path.join(BPFTOOL_DIR, 'bash-completion'))
37 array_start = re.search(start_marker, self.reader.read())
52 if not line or re.match(end_marker, line):
61 A parser for extracting a set of values from some BPF-related arrays.
65 end_marker = re.compile('^};')
69 self.start_marker = re.compile(fr'(static )?const bool {self.array_name}\[.*\] = {{\n')
83 pattern = re.compile(r'\[(BPF_\w*)\]\s*= (true|false),?$')
87 if line == '' or re.match(self.end_marker, line):
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/linux/tools/testing/selftests/tc-testing/plugin-lib/
H A DvalgrindPlugin.py8 import re
43 for xx in range(index - 1, self.testcount):
44 res = TestResult('{}-mem'.format(self.testidlist[xx]), 'Test skipped')
49 subprocess.check_output('rm -f vgnd-*.log', shell=True)
58 '-V', '--valgrind', action='store_true',
84 cmdlist.insert(0, '--track-origins=yes')
85 cmdlist.insert(0, '--show-leak-kinds=definite,indirect')
86 cmdlist.insert(0, '--leak-check=full')
87 cmdlist.insert(0, '--log-file=vgnd-{}.log'.format(self.args.testid))
88 cmdlist.insert(0, '-v') # ask for summary of non-leak errors
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/linux/drivers/mtd/ubi/
H A Dcdev.c1 // SPDX-License-Identifier: GPL-2.0-or-later
13 * manipulate whole volumes: create, remove, and re-size them. Volume character
19 * Well, there is the third kind of character devices - the UBI control
20 * character device, which allows to manipulate by UBI devices - create and
33 #include <mtd/ubi-user.h>
37 * get_exclusive - get exclusive access to an UBI volume.
47 struct ubi_volume *vol = desc->vol; in get_exclusive()
49 spin_lock(&vol->ubi->volumes_lock); in get_exclusive()
50 users = vol->readers + vol->writers + vol->exclusive + vol->metaonly; in get_exclusive()
53 ubi_err(vol->ubi, "%d users for volume %d", users, vol->vol_id); in get_exclusive()
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/linux/Documentation/process/
H A Dmanagement-style.rst8 mirror the :ref:`process/coding-style.rst <codingstyle>` document to some
20 budget of your group, you're almost certainly not a kernel manager.
35 ------------
37 Everybody thinks managers make decisions, and that decision-making is
44 to decide on this", you're in trouble as a manager. The people you
46 you for a technical decision, you're screwed. You're clearly not
50 you, you're also screwed, although for a totally different reason.
55 painful ones. Making small and non-consequential decisions is fine, and
56 makes you look like you know what you're doing, so what a kernel manager
65 **two** inconsequential decisions - the wrong one **and** the right one.
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/linux/fs/sysfs/
H A Dsymlink.c1 // SPDX-License-Identifier: GPL-2.0
3 * fs/sysfs/symlink.c - sysfs symlink implementation
5 * Copyright (c) 2001-3 Patrick Mochel
27 return -EINVAL; in sysfs_do_create_link_sd()
35 if (target_kobj->sd) { in sysfs_do_create_link_sd()
36 target = target_kobj->sd; in sysfs_do_create_link_sd()
42 return -ENOENT; in sysfs_do_create_link_sd()
50 if (warn && PTR_ERR(kn) == -EEXIST) in sysfs_do_create_link_sd()
56 * sysfs_create_link_sd - create symlink to a given object.
57 * @kn: directory we're creating the link in.
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/linux/arch/mips/math-emu/
H A Dsp_maddf.c1 // SPDX-License-Identifier: GPL-2.0-only
18 int re; in _sp_maddf() local
105 /* Handle cases +0 + (-0) and similar ones. */ in _sp_maddf()
146 * rm = xm * ym, re = xe + ye basically in _sp_maddf()
151 /* rm = xm * ym, re = xe+ye basically */ in _sp_maddf()
155 re = xe + ye; in _sp_maddf()
166 re++; in _sp_maddf()
177 rm = XSPSRS64(rm64, (62 - 26)); in _sp_maddf()
178 return ieee754sp_format(rs, re, rm); in _sp_maddf()
182 zm64 = (uint64_t)zm << (62 - 23); in _sp_maddf()
[all …]
H A Ddp_maddf.c1 // SPDX-License-Identifier: GPL-2.0-only
28 *lptr = *hptr >> (count - 64); in srl128()
29 *lptr |= (*hptr << (128 - count)) != 0 || low != 0; in srl128()
34 *lptr = low >> count | *hptr << (64 - count); in srl128()
35 *lptr |= (low << (64 - count)) != 0; in srl128()
43 int re; in _dp_maddf() local
136 /* Handle cases +0 + (-0) and similar ones. */ in _dp_maddf()
177 * rm = xm * ym, re = xe + ye basically in _dp_maddf()
184 re = xe + ye; in _dp_maddf()
187 xm <<= 64 - (DP_FBITS + 1); in _dp_maddf()
[all …]
/linux/include/uapi/mtd/
H A Dubi-user.h1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33 * &struct ubi_attach_req object - UBI will attach the MTD device specified in
54 * device should be used. A pointer to the 32-bit volume ID hast to be passed
57 * UBI volume re-size
60 * To re-size a volume, the %UBI_IOCRSVOL ioctl command of the UBI character
64 * UBI volumes re-name
67 * To re-name several volumes atomically at one go, the %UBI_IOCRNVOL command
75 * corresponding UBI volume character device. A pointer to a 64-bit update
109 * a physical eraseblock and returns. Only non-mapped logical eraseblocks can
[all …]
/linux/Documentation/bpf/
H A Dllvm_reloc.rst1 .. SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
12 LLVM BPF backend records each relocation with the following 16-byte
31 Compiled with ``clang --target=bpf -O2 -c test.c``, the following is
32 the code with ``llvm-objdump -dr test.o``::
52 The following ``llvm-readelf -r test.o`` shows the binary values of the four
66 The following is the symbol table with ``llvm-readelf -s test.o``::
100 section offset for static variables/functions. The non-section-offset
115 10 R_BPF_64_32 call insn 32 r_offset + 4 (S + A) / 8 - 1
118 The actual to-be-relocated data (0 or section offset)
125 In another case, ``R_BPF_64_ABS64`` relocation type is used for normal 64-bit data.
[all …]
/linux/arch/mips/mm/
H A Duasm-mips.c6 * A small micro-assembler. It is intentionally kept simple, does only
12 * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org)
31 /* This macro sets the non-variable bits of an instruction. */
40 /* This macro sets the non-variable bits of an R6 instruction. */
73 [insn_cfcmsa] = {M(msa_op, 0, msa_cfc_op, 0, 0, msa_elm_op), RD | RE},
75 [insn_ctcmsa] = {M(msa_op, 0, msa_ctc_op, 0, 0, msa_elm_op), RD | RE},
82 [insn_dins] = {M(spec3_op, 0, 0, 0, 0, dins_op), RS | RT | RD | RE},
83 [insn_dinsm] = {M(spec3_op, 0, 0, 0, 0, dinsm_op), RS | RT | RD | RE},
84 [insn_dinsu] = {M(spec3_op, 0, 0, 0, 0, dinsu_op), RS | RT | RD | RE},
95 [insn_drotr] = {M(spec_op, 1, 0, 0, 0, dsrl_op), RT | RD | RE},
[all …]
/linux/Documentation/userspace-api/media/mediactl/
H A Dmedia-request-ioc-reinit.rst1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
13 MEDIA_REQUEST_IOC_REINIT - Re-initialize a request
31 If the media device supports :ref:`requests <media-request-api>`, then
32 this request ioctl can be used to re-initialize a previously allocated
35 Re-initializing a request will clear any existing data from the request.
38 be re-initialized and it is ready to be used again.
40 A request can only be re-initialized if it either has not been queued
47 On success 0 is returned, on error -1 and the ``errno`` variable is set
/linux/lib/crypto/powerpc/
H A Dsha1-powerpc-asm.S1 /* SPDX-License-Identifier: GPL-2.0 */
3 * SHA-1 implementation for PowerPC.
9 #include <asm/asm-offsets.h>
10 #include <asm/asm-compat.h>
24 * We use registers 7 - 12 for this.
31 #define RE(t) ((((t)+0)%6)+7) macro
33 /* We use registers 16 - 31 for the W values */
44 add r0,RE(t),r15; \
57 add r0,RE(t),r15; \
58 xor r5,W((t)+4-3),W((t)+4-8); \
[all …]
/linux/lib/
H A Dklist.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * klist.c - Routines for manipulating klists.
20 * It works using a 3rd object type - struct klist_iter - that is declared
50 ((unsigned long)knode->n_klist & KNODE_KLIST_MASK); in knode_klist()
55 return (unsigned long)knode->n_klist & KNODE_DEAD; in knode_dead()
60 knode->n_klist = klist; in knode_set_klist()
67 /* and no knode should die twice ever either, see we're very humane */ in knode_kill()
69 *(unsigned long *)&knode->n_klist |= KNODE_DEAD; in knode_kill()
73 * klist_init - Initialize a klist structure.
74 * @k: The klist we're initializing.
[all …]
/linux/scripts/dtc/
H A Ddt-extract-compatibles2 # SPDX-License-Identifier: GPL-2.0-only
6 import re
18 for m in re.finditer(re_macros, data):
20 compat = re.search(r'"(.*?)"', m[0])[1]
32 for m in re.finditer(r'of_device_id(\s+\S+)?\s+(\S+)\[\](\s+\S+)?\s*=\s*({.*?);', data):
35 compat_list += re.findall(r'\.compatible\s+=\s+"(\S+)"', m[4])
43 for m in re.finditer(r'\.of_match_table\s+=\s+(of_match_ptr\()?([a-zA-Z0-9_-]+)', data):
52 for m in re.finditer(rf'{func_name}\(([a-zA-Z0-9_>\(\)"\-]+,\s)*"([a-zA-Z0-9_,-]+)"\)', data):
59 with open(file, 'r', encoding='utf-8') as f:
80 with open(file, 'r', encoding='utf-8') as f:
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/linux/Documentation/filesystems/bcachefs/
H A DCodingStyle.rst1 .. SPDX-License-Identifier: GPL-2.0
11 Things don't always have to be perfect - nitpicking often does more harm than
12 good. But appreciate beauty when you see it - and let people know.
26 you're not sure if it can happen and not sure how to handle it yet - make it a
32 are logically impossible. (Or, make them debug mode assertions if they're
33 expensive - but don't turn everything into a debug mode assertion, so that
34 we're not stuck debugging undefined behaviour should it turn out that you were
52 elide - if we were working in a language with embedded correctness proofs that
56 invariants with runtime checks - much like the way people working in
60 Looking for ways to make your assertions simpler - and higher level - will
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