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/linux/drivers/acpi/acpica/
H A Dutstrtoul64.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
4 * Module Name: utstrtoul64 - String-to-integer conversion support for both
5 * 64-bit and 32-bit integers
17 * This module contains the top-level string to 64/32-bit unsigned integer
20 * 1) A standard strtoul() function that supports 64-bit integers, base
23 * constants than the runtime (interpreter) integer-to-string conversions.
29 * iASL - Preprocessor (constants and math expressions)
30 * iASL - Main parser, conversion of constants to integers
31 * iASL - Data Table Compiler parser (constants and math expressions)
32 * interpreter - Implicit and explicit conversions, GPE method names
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H A Dutstrsuppt.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
4 * Module Name: utstrsuppt - Support functions for string-to-integer conversion
27 * PARAMETERS: string - Null terminated input string
28 * return_value_ptr - Where the converted value is returned
30 * RETURN: Status and 64-bit converted integer
32 * DESCRIPTION: Performs a base 8 conversion of the input string to an
35 * NOTE: Maximum 64-bit unsigned octal value is 01777777777777777777777
36 * Maximum 32-bit unsigned octal value is 037777777777
40 acpi_status acpi_ut_convert_octal_string(char *string, u64 *return_value_ptr) in acpi_ut_convert_octal_string() argument
45 /* Convert each ASCII byte in the input string */ in acpi_ut_convert_octal_string()
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H A Dexconcat.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
4 * Module Name: exconcat - Concatenate-type AML operators
6 * Copyright (C) 2000 - 2025, Intel Corp.
27 * PARAMETERS: operand0 - First source object
28 * operand1 - Second source object
29 * actual_return_desc - Where to place the return object
30 * walk_state - Current walk state
34 * DESCRIPTION: Concatenate two objects with the ACPI-defined conversion
37 * Per the ACPI spec (up to 6.1), Concatenate only supports Integer,
38 * String, and Buffer objects. However, we support all objects here
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/linux/tools/power/x86/x86_energy_perf_policy/
H A Dx86_energy_perf_policy.81 .\" This page Copyright (C) 2010 - 2015 Len Brown <len.brown@intel.com>
5 x86_energy_perf_policy \- Manage Energy vs. Performance Policy
10 .RB "scope: \-\-cpu\ cpu-list | \-\-pkg\ pkg-list"
12 .RB "cpu-list, pkg-lis
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/linux/Documentation/ABI/testing/
H A Dconfigfs-usb-gadget1 What: /config/usb-gadget
5 This group contains sub-groups corresponding to created
8 What: /config/usb-gadget/gadget
18 to bind a gadget, empty string "" to unbind.
21 names are super-speed-plus, super-speed,
22 high-speed, full-speed, and low-speed.
34 What: /config/usb-gadget/gadget/configs
40 What: /config/usb-gadget/gadget/configs/config
51 What: /config/usb-gadget/gadget/configs/config/strings
55 This group contains subdirectories for language-specific
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H A Dsysfs-class-hwmon4 This should be a short, lowercase string, not containing
16 The contents of the label are free-form.
132 Text string
135 this voltage channel is being used for, and user-space
137 user-space.
145 When disabled the sensor read will return -ENODATA.
147 - 1: Enable
148 - 0: Disable
156 - 1: Failed
157 - 0: Ok
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/linux/Documentation/netlink/
H A Dnetlink-raw.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/netlink-raw.yaml#
5 $schema: https://json-schema.org/draft-07/schema
10 type: string
11 pattern: ^[0-9a-z-]+$
12 name-cap:
13 type: string
14 pattern: ^[0-9a-zA-Z-]+$
18 len-or-define:
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/linux/Documentation/devicetree/bindings/usb/
H A Dbrcm,usb-pinmap.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/usb/brcm,usb-pinmap.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Al Cooper <alcooperx@gmail.com>
15 - const: brcm,usb-pinmap
22 description: Interrupt for signals mirrored to out-gpios.
24 in-gpios:
29 brcm,in-functions:
30 $ref: /schemas/types.yaml#/definitions/string-array
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/linux/fs/xfs/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
10 on the SGI IRIX platform. It is completely multi-threaded, can
17 for complete details. This implementation is on-disk compatible
38 xfs_info against a filesystem mountpoint and checking for a string
39 beginning with "crc=". If the string "crc=0" is found, the
40 filesystem is a V4 filesystem. If no such string is found, please
51 bool "Support deprecated case-insensitive ascii (ascii-ci=1) format"
56 on systems that have been coerced into using ISO 8859-1, and it does
58 the locale settings in userspace, so it corrupts UTF-8 names.
65 xfs_info against a filesystem mountpoint and checking for a string
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/linux/Documentation/networking/
H A Dalias.rst1 .. SPDX-License-Identifier: GPL-2.0
4 IP-Aliasing
7 IP-aliases are an obsolete way to manage multiple IP-addresses/masks
8 per interface. Newer tools such as iproute2 support multiple
9 address/prefixes per interface, but aliases are still supported
12 An alias is formed by adding a colon and a string when running ifconfig.
13 This string is usually numeric, but this is not a must.
24 ~~ -> request alias #0 creation (if not yet exists) for eth0
36 ~~~~~~~~~~ -> will delete alias
39 Alias (re-)configuring
/linux/arch/arm64/lib/
H A Dstrlen.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2013-2021, Arm Limited.
6 * https://github.com/ARM-software/optimized-routines/blob/98e4d6a5c13c8e54/string/aarch64/strlen.S
11 #include <asm/mte-def.h>
15 * ARMv8-a, AArch64, unaligned accesses, min page size 4k.
36 /* NUL detection works on the principle that (X - 1) & (~X) & 0x80
37 (=> (X - 1) & ~(X | 0x7f)) is non-zero iff a byte is zero, and
39 (X - 1) & 0x80 is zero for non-NUL ASCII characters, but gives
48 * (16-byte) granularity, and we must ensure that no access straddles this
58 of the string for a NUL character. In order to do an unaligned ldp
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/linux/lib/
H A Dseq_buf.c1 // SPDX-License-Identifier: GPL-2.0
26 #include <linux/string.h>
31 * seq_buf_can_fit - can the new data fit in the current buffer?
40 return s->len + len <= s->size; in seq_buf_can_fit()
44 * seq_buf_print_seq - move the contents of seq_buf into a seq_file
48 * Returns: zero on success, non-zero otherwise.
54 return seq_write(m, s->buffer, len); in seq_buf_print_seq()
58 * seq_buf_vprintf - sequence printing of information.
60 * @fmt: printf format string
65 * Returns: zero on success, -1 on overflow.
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/linux/tools/testing/selftests/rcutorture/configs/rcu/
H A Dver_functions.sh2 # SPDX-License-Identifier: GPL-2.0+
4 # Kernel-version-dependent shell functions for the rest of the scripts.
10 # rcutorture_param_n_barrier_cbs bootparam-string
14 if echo $1 | grep -q "rcutorture\.n_barrier_cbs"
22 # rcutorture_param_onoff bootparam-string config-file
28 echo CPU-hotplug kernel, adding rcutorture onoff. 1>&2
33 # rcutorture_param_stat_interval bootparam-string
37 if echo $1 | grep -q "rcutorture\.stat_interval"
45 # per_version_boot_params bootparam-string config-file seconds
47 # Adds per-version torture-module parameters to kernels supporting them.
/linux/tools/perf/Documentation/
H A Dperf-kwork.txt1 perf-kwork(1)
5 ----
6 perf-kwork - Tool to trace/measure kernel work properties (latencies)
9 --------
14 -----------
20 'perf kwork report' to report the per kwork runtime.
22 'perf kwork latency' to report the per kwork latencies.
29 perf kwork record -- sleep 1
31 perf kwork report -b
33 perf kwork latency -b
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H A Dperf-kmem.txt1 perf-kmem(1)
5 ----
6 perf-kmem - Tool to trace/measure kernel memory properties
9 --------
14 -----------
17 'perf kmem [<options>] record [<perf-record-options>] <command>' to
19 record' options may be specified after record, such as '-o' to
25 -------
26 -i <file>::
27 --input=<file>::
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/linux/Documentation/devicetree/bindings/leds/backlight/
H A Dqcom-wled.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/qcom-wled.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Bjorn Andersson <andersson@kernel.org>
11 - Kiran Gunda <quic_kgunda@quicinc.com>
21 - qcom,pm8941-wled
22 - qcom,pmi8950-wled
23 - qcom,pmi8994-wled
24 - qcom,pmi8998-wled
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/linux/Documentation/core-api/
H A Dnetlink.rst1 .. SPDX-License-Identifier: BSD-3-Clause
13 ---------------
21 -------------
31 ---------------
44 ----------
51 ------------------------
54 them - make sure to report dump inconsistency with ``NLM_F_DUMP_INTR``.
65 -------
67 kernel-policy
71 operations of the family, defined for each operation individually - ``per-op``,
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/linux/drivers/firmware/smccc/
H A Dsoc_id.c1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/arm-smccc.h>
18 * As per the SMC Calling Convention specification v1.2 (ARM DEN 0028C)
19 * Section 7.4 SMCCC_ARCH_SOC_ID bits[23:16] are JEP-106 identification
59 * specification introduces an optional "name" string in smccc_soc_name_init()
69 * Copy res.a1..res.a17 to the smccc_soc_id_name string in smccc_soc_name_init()
70 * 8 bytes at a time. As per Issue 1.6 of the Arm SMC in smccc_soc_name_init()
71 * Calling Convention, the string will be NUL terminated in smccc_soc_name_init()
72 * and padded, from the end of the string to the end of the in smccc_soc_name_init()
131 return -EINVAL; in smccc_soc_init()
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/linux/scripts/gdb/linux/
H A Dcpus.py4 # per-cpu tools
6 # Copyright (c) Siemens AG, 2011-2013
27 return gdb.selected_thread().num - 1
36 if cpu == -1:
77 entry = -1
129 super(LxCpus, self).__init__("lx-cpus", gdb.COMMAND_DATA)
142 """Return per-cpu variable.
144 $lx_per_cpu(VAR[, CPU]): Return the per-cpu variable called VAR for the
146 Note that VAR has to be quoted as string."""
151 def invoke(self, var, cpu=-1):
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/linux/tools/testing/selftests/rcutorture/configs/scf/
H A Dver_functions.sh2 # SPDX-License-Identifier: GPL-2.0+
4 # Torture-suite-dependent shell functions for the rest of the scripts.
10 # scftorture_param_onoff bootparam-string config-file
16 echo CPU-hotplug kernel, adding scftorture onoff. 1>&2
21 # per_version_boot_params bootparam-string config-file seconds
23 # Adds per-version torture-module parameters to kernels supporting them.
/linux/tools/testing/selftests/rcutorture/configs/lock/
H A Dver_functions.sh2 # SPDX-License-Identifier: GPL-2.0+
4 # Kernel-version-dependent shell functions for the rest of the scripts.
10 # locktorture_param_onoff bootparam-string config-file
16 echo CPU-hotplug kernel, adding locktorture onoff. 1>&2
21 # per_version_boot_params bootparam-string config-file seconds
23 # Adds per-version torture-module parameters to kernels supporting them.
/linux/fs/jfs/
H A Djfs_unicode.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) International Business Machines Corp., 2000-2004
16 * FUNCTION: Convert little-endian unicode string to character string
25 int warn = !!warn_again; /* once per string */ in jfs_strfromUCS_le()
31 codepage->uni2char(le16_to_cpu(from[i]), in jfs_strfromUCS_le()
44 warn--; in jfs_strfromUCS_le()
45 warn_again--; in jfs_strfromUCS_le()
47 "non-latin1 character 0x%x found in JFS file name\n", in jfs_strfromUCS_le()
66 * FUNCTION: Convert character string to unicode string
76 for (i = 0; len && *from; i++, from += charlen, len -= charlen) in jfs_strtoUCS()
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/linux/arch/xtensa/lib/
H A Dstrnlen_user.S50 addi a4, a2, -4 # because we overincrement at the end;
56 bbsi.l a2, 0, .L1mod2 # if only 8-bit aligned
57 bbsi.l a2, 1, .L2mod4 # if only 16-bit aligned
60 * String is word-aligned.
63 srli a10, a3, 2 # number of loop iterations with 4B per loop
72 EX(10f) l32i a9, a4, 4 # get next word of string
73 addi a4, a4, 4 # advance string pointer
87 addi a4, a4, 2 # advance string pointer
96 addi a4, a4, 1 # advance string pointer
121 addi a4, a4, 1 # advance string pointer
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/linux/drivers/scsi/bfa/
H A Dbfa_plog.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
4 * Copyright (c) 2014- QLogic Corporation.
8 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
19 #define BFA_PL_STRING_LOG_SZ 32 /* number of chars in string log */
36 u8 log_type; /* string/integer log, bfa_plog_log_type_t */
40 * integers in the int_log[] (0-PL_INT_LOG_SZ).
53 * their module id. BFAL will convert the integer value to string format
56 * - Always add new entries at the end
57 * - define corresponding string in BFAL
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/linux/Documentation/trace/
H A Dkprobetrace.rst2 Kprobe-based Event Tracing
8 --------
9 These events are similar to tracepoint-based events. Instead of tracepoints,
13 Unlike the tracepoint-based event, this can be added and removed
28 -------------------------
34 -:[GRP/][EVENT] : Clear a probe
50 @SYM[+|-offs] : Fetch memory at SYM +|- offs (SYM should be a data symbol)
56 +|-[u]OFFS(FETCHARG) : Fetch memory at FETCHARG +|- OFFS address.(\*3)(\*4)
62 "string", "ustring", "symbol", "symstr" and bitfield are
72 (\*4) "u" means user-space dereference. See :ref:`user_mem_access`.
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