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/linux/kernel/kcsan/
H A Dpermissive.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Special rules for ignoring entire classes of data-racy memory accesses. None
4 * of the rules here imply that such data races are generally safe!
6 * All rules in this file can be configured via CONFIG_KCSAN_PERMISSIVE. Keep
20 * Access ignore rules based on address.
28 * Data-racy bitops on current->flags are too common, ignore completely in kcsan_ignore_address()
31 return ptr == &current->flags; in kcsan_ignore_address()
35 * Data race ignore rules based on access type and value change patterns.
44 * Rules here are only for plain read accesses, so that we still report in kcsan_ignore_data_race()
45 * data races between plain read-write accesses. in kcsan_ignore_data_race()
[all …]
/linux/Documentation/filesystems/
H A Ddirectory-locking.rst7 kinds of locks - per-inode (->i_rwsem) and per-filesystem
8 (->s_vfs_rename_mutex).
10 When taking the i_rwsem on multiple non-directory objects, we
20 1. read access. Locking rules:
24 2. object creation. Locking rules:
28 3. object removal. Locking rules:
34 4. link creation. Locking rules:
40 5. rename that is _not_ cross-directory. Locking rules:
45 The source needs to be locked if it's a non-directory, target - if it's
46 a non-directory or about to be removed.
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/linux/drivers/net/ethernet/marvell/prestera/
H A Dprestera_matchall.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2 /* Copyright (c) 2019-2022 Marvell International Ltd. All rights reserved */
21 err = prestera_flower_prio_get(block, f->common.chain_index, in prestera_mall_prio_check()
23 if (err == -ENOENT) in prestera_mall_prio_check()
28 NL_SET_ERR_MSG(f->common.extack, "Failed to get flower priorities"); in prestera_mall_prio_check()
32 if (f->common.prio <= flower_prio_max && !block->ingress) { in prestera_mall_prio_check()
33 NL_SET_ERR_MSG(f->common.extack, "Failed to add in front of existing flower rules"); in prestera_mall_prio_check()
34 return -EOPNOTSUPP; in prestera_mall_prio_check()
36 if (f->common.prio >= flower_prio_min && block->ingress) { in prestera_mall_prio_check()
37 NL_SET_ERR_MSG(f->common.extack, "Failed to add behind of existing flower rules"); in prestera_mall_prio_check()
[all …]
H A Dprestera_flower.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
19 prestera_acl_ruleset_put(template->ruleset); in prestera_flower_template_free()
20 list_del(&template->list); in prestera_flower_template_free()
29 list_for_each_entry_safe(template, tmp, &block->template_list, list) in prestera_flower_template_cleanup()
41 if (act->chain_index <= chain_index) in prestera_flower_parse_goto_action()
43 return -EINVAL; in prestera_flower_parse_goto_action()
45 if (rule->re_arg.jump.valid) in prestera_flower_parse_goto_action()
46 return -EEXIST; in prestera_flower_parse_goto_action()
48 ruleset = prestera_acl_ruleset_get(block->sw->acl, block, in prestera_flower_parse_goto_action()
49 act->chain_index); in prestera_flower_parse_goto_action()
[all …]
/linux/drivers/net/ethernet/mellanox/mlxsw/
H A Dspectrum_matchall.c1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2 /* Copyright (c) 2017-2020 Mellanox Technologies. All rights reserved */
18 list_for_each_entry(mall_entry, &block->mall.list, list) in mlxsw_sp_mall_entry_find()
19 if (mall_entry->cookie == cookie) in mlxsw_sp_mall_entry_find()
30 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; in mlxsw_sp_mall_port_mirror_add()
36 if (!mall_entry->mirror.to_dev) { in mlxsw_sp_mall_port_mirror_add()
38 return -EINVAL; in mlxsw_sp_mall_port_mirror_add()
41 agent_parms.to_dev = mall_entry->mirror.to_dev; in mlxsw_sp_mall_port_mirror_add()
42 err = mlxsw_sp_span_agent_get(mlxsw_sp, &mall_entry->mirror.span_id, in mlxsw_sp_mall_port_mirror_add()
50 mall_entry->ingress); in mlxsw_sp_mall_port_mirror_add()
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/linux/drivers/net/ethernet/netronome/nfp/flower/
H A Dmain.h1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
2 /* Copyright (C) 2017-2018 Netronome Systems, Inc. */
89 * struct nfp_fl_tunnel_offloads - priv data for tunnel offloads
109 * struct nfp_tun_neigh_lag - lag info
119 * struct nfp_tun_neigh - basic neighbour data
122 * @port_id: NFP port to output packet on - associated with source IPv4
131 * struct nfp_tun_neigh_ext - extended neighbour data
143 * struct nfp_tun_neigh_v4 - neighbour/route entry on the NFP for IPv4
146 * @common: Neighbour/route common info
153 struct nfp_tun_neigh common; member
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H A Dconntrack.c1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
30 * get_hashentry() - Wrapper around hashtable lookup.
51 return ERR_PTR(-ENOMEM); in get_hashentry()
59 struct flow_dissector *dissector = rule->match.dissector; in is_pre_ct_flow()
64 if (dissector->used_keys & BIT_ULL(FLOW_DISSECTOR_KEY_CT)) { in is_pre_ct_flow()
66 if (ct.key->ct_state) in is_pre_ct_flow()
70 if (flow->common.chain_index) in is_pre_ct_flow()
73 flow_action_for_each(i, act, &flow->rule->action) { in is_pre_ct_flow()
74 if (act->id == FLOW_ACTION_CT) { in is_pre_ct_flow()
78 if ((!act->ct.action || act->ct.action == TCA_CT_ACT_NAT)) in is_pre_ct_flow()
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/linux/drivers/gpu/drm/etnaviv/
H A Dstate_blt.xml.h6 This file was generated by the rules-ng-ng headergen tool in this git repository:
7 http://0x04.net/cgit/index.cgi/rules-ng-ng
8 git clone git://0x04.net/rules-ng-ng
10 The rules-ng-ng source files this header was generated from are:
11 - state.xml ( 29355 bytes, from 2024-01-19 10:18:54)
12 - common.xml ( 35664 bytes, from 2023-12-06 10:55:32)
13 - common_3d.xml ( 15069 bytes, from 2023-11-22 10:05:24)
14 - state_hi.xml ( 35854 bytes, from 2023-12-11 15:50:17)
15 - copyright.xml ( 1597 bytes, from 2016-11-10 13:58:32)
16 - state_2d.xml ( 52271 bytes, from 2023-06-02 12:35:03)
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/linux/Documentation/dev-tools/
H A Dclang-format.rst3 clang-format
6 ``clang-format`` is a tool to format C/C++/... code according to
7 a set of rules and heuristics. Like most tools, it is not perfect
10 ``clang-format`` can be used for several purposes:
12 - Quickly reformat a block of code to the kernel style. Specially useful
15 - Spot style mistakes, typos and possible improvements in files
18 - Help you follow the coding style rules, specially useful for those
22 Its configuration file is ``.clang-format`` in the root of the kernel tree.
23 The rules contained there try to approximate the most common kernel
24 coding style. They also try to follow :ref:`Documentation/process/coding-style.rst <codingstyle>`
[all …]
H A Dkcsan.rst1 .. SPDX-License-Identifier: GPL-2.0
8 relies on compile-time instrumentation, and uses a watchpoint-based sampling
12 -----
30 BUG: KCSAN: data-race in test_kernel_read / test_kernel_write
44 value changed: 0x00000000000009a6 -> 0x00000000000009b2
47 CPU: 6 PID: 488 Comm: access_thread Not tainted 5.12.0-rc2+ #1
48 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
56 The other less common type of data race report looks like this::
59 BUG: KCSAN: data-race in test_kernel_rmw_array+0x71/0xd0
67 value changed: 0x0000000000002328 -> 0x0000000000002329
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/linux/drivers/net/netdevsim/
H A Dfib.c6 * June 1991 as shown in the file COPYING in the top-level directory of this
42 struct nsim_fib_entry rules; member
82 struct nsim_fib_rt common; member
89 struct nsim_fib_rt common; member
143 entry = &fib_data->ipv4.fib; in nsim_fib_get_val()
146 entry = &fib_data->ipv4.rules; in nsim_fib_get_val()
149 entry = &fib_data->ipv6.fib; in nsim_fib_get_val()
152 entry = &fib_data->ipv6.rules; in nsim_fib_get_val()
155 entry = &fib_data->nexthops; in nsim_fib_get_val()
161 return max ? entry->max : atomic64_read(&entry->num); in nsim_fib_get_val()
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/linux/drivers/gpu/drm/ci/
H A Dgitlab-ci.yml2 DRM_CI_PROJECT_PATH: &drm-ci-project-path mesa/mesa
3 DRM_CI_COMMIT_SHA: &drm-ci-commit-sha c6a9a9c3bce90923f7700219354e0b6e5a3c9ba6
6 TARGET_BRANCH: drm-next
10 DEQP_RUNNER_GIT_URL: https://gitlab.freedesktop.org/mesa/deqp-runner.git
13 FDO_UPSTREAM_REPO: helen.fornazier/linux # The repo where the git-archive daily runs
14 MESA_TEMPLATES_COMMIT: &ci-templates-commit d5aa3941aa03c2f716595116354fb81eb8012acb
16 CI_PRE_CLONE_SCRIPT: |-
17 set -o xtrace
18 …-L --retry 4 -f --retry-all-errors --retry-delay 60 -s ${DRM_CI_PROJECT_URL}/-/raw/${DRM_CI_COMMIT…
19 bash download-git-cache.sh
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/linux/drivers/net/ethernet/microchip/lan966x/
H A Dlan966x_tc_flower.c1 // SPDX-License-Identifier: GPL-2.0+
13 switch (st->admin->vtype) { in lan966x_tc_is_known_etype()
37 NL_SET_ERR_MSG_MOD(st->fco->common.extack, in lan966x_tc_is_known_etype()
48 struct netlink_ext_ack *extack = st->fco->common.extack; in lan966x_tc_flower_handler_control_usage()
52 flow_rule_match_control(st->frule, &match); in lan966x_tc_flower_handler_control_usage()
53 if (match.mask->flags & FLOW_DIS_IS_FRAGMENT) { in lan966x_tc_flower_handler_control_usage()
54 if (match.key->flags & FLOW_DIS_IS_FRAGMENT) in lan966x_tc_flower_handler_control_usage()
55 err = vcap_rule_add_key_bit(st->vrule, in lan966x_tc_flower_handler_control_usage()
59 err = vcap_rule_add_key_bit(st->vrule, in lan966x_tc_flower_handler_control_usage()
66 if (match.mask->flags & FLOW_DIS_FIRST_FRAG) { in lan966x_tc_flower_handler_control_usage()
[all …]
/linux/Documentation/sound/designs/
H A Dtracepoints.rst19 ------------------------------------
25 -----------------------------------------------------
53 - SNDRV_PCM_HW_PARAM_ACCESS
54 - SNDRV_PCM_HW_PARAM_FORMAT
55 - SNDRV_PCM_HW_PARAM_SUBFORMAT
61 - SNDRV_PCM_HW_PARAM_SAMPLE_BITS
62 - SNDRV_PCM_HW_PARAM_FRAME_BITS
63 - SNDRV_PCM_HW_PARAM_CHANNELS
64 - SNDRV_PCM_HW_PARAM_RATE
65 - SNDRV_PCM_HW_PARAM_PERIOD_TIME
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/linux/drivers/net/dsa/sja1105/
H A Dsja1105_flower.c1 // SPDX-License-Identifier: GPL-2.0
12 list_for_each_entry(rule, &priv->flow_block.rules, list) in sja1105_rule_find()
13 if (rule->cookie == cookie) in sja1105_rule_find()
24 if (!priv->flow_block.l2_policer_used[i]) in sja1105_find_free_l2_policer()
27 return -1; in sja1105_find_free_l2_policer()
38 struct dsa_switch *ds = priv->ds; in sja1105_setup_bcast_policer()
46 return -ENOMEM; in sja1105_setup_bcast_policer()
48 rule->cookie = cookie; in sja1105_setup_bcast_policer()
49 rule->type = SJA1105_RULE_BCAST_POLICER; in sja1105_setup_bcast_policer()
50 rule->bcast_pol.sharindx = sja1105_find_free_l2_policer(priv); in sja1105_setup_bcast_policer()
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/linux/Documentation/devicetree/bindings/leds/
H A Dleds-cr0014114.txt1 Crane Merchandising System - cr0014114 LED driver
2 -------------------------------------------------
8 - compatible: "crane,cr0014114"
10 Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
11 apply. In particular, "reg" and "spi-max-frequency" properties must be given.
13 LED sub-node properties:
14 - function :
15 see Documentation/devicetree/bindings/leds/common.txt
16 - color :
17 see Documentation/devicetree/bindings/leds/common.txt
[all …]
H A Dleds-spi-byte.txt4 - one LED is controlled by a single byte on MOSI
5 - the value of the byte gives the brightness between two values (lowest to
7 - no return value is necessary (no MISO signal)
16 configured in a sub-node in the device node.
19 - compatible: should be one of
20 * "ubnt,acb-spi-led" microcontroller (SONiX 8F26E611LA) based device
23 Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
26 LED sub-node properties:
27 - label:
28 see Documentation/devicetree/bindings/leds/common.txt
[all …]
/linux/Documentation/admin-guide/cgroup-v1/
H A Dblkio-controller.rst22 -----------------------------
33 mount -t cgroup -o blkio none /sys/fs/cgroup/blkio
45 # dd iflag=direct if=/mnt/common/zerofile of=/dev/null bs=4K count=1024
98 --------------------------------
106 see Documentation/block/bfq-iosched.rst.
110 weight. For more details, see Documentation/block/bfq-iosched.rst.
152 are further divided by the type of operation - read or write, sync
159 are further divided by the type of operation - read or write, sync
173 the type of operation - read or write, sync or async. First two fields
186 (there might be a time lag here due to re-ordering of requests by the
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/linux/Documentation/userspace-api/gpio/
H A Dgpio-get-linehandle-ioctl.rst1 .. SPDX-License-Identifier: GPL-2.0
11 gpio-v2-get-line-ioctl.rst.
16 GPIO_GET_LINEHANDLE_IOCTL - Request a line or lines from the kernel.
55 .. _gpio-get-linehandle-config-rules:
57 Configuration Rules
58 -------------------
60 The following configuration rules apply:
65 line is requested "as-is" to allow reading of the line value without altering
71 If none are set then the line is assumed push-pull.
80 .. _gpio-get-linehandle-config-support:
[all …]
H A Dgpio-get-lineevent-ioctl.rst1 .. SPDX-License-Identifier: GPL-2.0
11 gpio-v2-get-line-ioctl.rst.
16 GPIO_GET_LINEEVENT_IOCTL - Request a line with edge detection from the kernel.
42 described in gpio-lineevent-data-read.rst.
54 As with the :ref:`line handle<gpio-get-linehandle-config-support>`, the
59 Configuration Rules
60 -------------------
62 The following configuration rules apply:
83 On error -1 and the ``errno`` variable is set appropriately.
84 Common error codes are described in error-codes.rst.
/linux/Documentation/ABI/testing/
H A Dsysfs-bus-css3 Contact: linux-s390@vger.kernel.org
9 Contact: linux-s390@vger.kernel.org
16 Contact: linux-s390@vger.kernel.org
21 Note: This is an I/O-subchannel specific attribute.
22 Users: s390-tools, HAL
26 Contact: linux-s390@vger.kernel.org
28 channel subsystem when last queried by the common I/O
32 Note: This is an I/O-subchannel specific attribute.
33 Users: s390-tools, HAL
37 Contact: linux-s390@vger.kernel.org
[all …]
/linux/scripts/package/debian/
H A Drules1 #!/usr/bin/make -f
2 # SPDX-License-Identifier: GPL-2.0-only
4 # in case debian/rules is executed directly
7 include debian/rules.vars
9 ifneq (,$(filter-out parallel=1,$(filter parallel=%,$(DEB_BUILD_OPTIONS))))
11 MAKEFLAGS += -j$(NUMJOBS)
24 revision = $(lastword $(subst -, ,$(shell dpkg-parsechangelog -S Version)))
25 CROSS_COMPILE ?= $(filter-out $(DEB_BUILD_GNU_TYPE)-, $(DEB_HOST_GNU_TYPE)-)
26 make-opts = ARCH=$(ARCH) KERNELRELEASE=$(KERNELRELEASE) KBUILD_BUILD_VERSION=$(revision) $(addprefi…
28 binary-targets := $(addprefix binary-, image image-dbg headers libc-dev)
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/linux/Documentation/networking/
H A Drepresentors.rst1 .. SPDX-License-Identifier: GPL-2.0
9 used to control internal switching on SmartNICs. For the closely-related port
10 representors on physical (multi-port) switches, see
14 ----------
16 Since the mid-2010s, network cards have started offering more complex
17 virtualisation capabilities than the legacy SR-IOV approach (with its simple
18 MAC/VLAN-based switching model) can support. This led to a desire to offload
19 software-defined networks (such as OpenVSwitch) to these NICs to specify the
24 virtual switches and IOV devices. Just as each physical port of a Linux-
42 -----------
[all …]
/linux/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/
H A Dkconfig.rst1 .. SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
20 | ports to Bridge and offloading rules for traffic between such ports.
34 | built-in into mlx5_core.ko.
39 …g (DCB) Support <https://enterprise-support.nvidia.com/s/article/howto-auto-config-pfc-and-ets-on-…
53 | Flow-based classifiers, such as those registered through
54 | `tc-flower(8)`, are processed by the device, rather than the
61 | Enables Hardware-accelerated receive flow steering (arfs) support, and ntuple filtering.
62 | https://enterprise-support.nvidia.com/s/article/howto-configure-arfs-on-connectx-4
67 | Enables :ref:`IPSec XFRM cryptography-offload acceleration <xfrm_device>`.
72 | Build support for MACsec cryptography-offload acceleration in the NIC.
[all …]
/linux/drivers/net/ethernet/freescale/dpaa2/
H A Ddpaa2-switch-flower.c1 // SPDX-License-Identifier: GPL-2.0
9 #include "dpaa2-switch.h"
15 struct flow_dissector *dissector = rule->match.dissector; in dpaa2_switch_flower_parse_key()
16 struct netlink_ext_ack *extack = cls->common.extack; in dpaa2_switch_flower_parse_key()
19 if (dissector->used_keys & in dpaa2_switch_flower_parse_key()
30 return -EOPNOTSUPP; in dpaa2_switch_flower_parse_key()
33 acl_h = &acl_key->match; in dpaa2_switch_flower_parse_key()
34 acl_m = &acl_key->mask; in dpaa2_switch_flower_parse_key()
37 return -EOPNOTSUPP; in dpaa2_switch_flower_parse_key()
43 acl_h->l3_protocol = match.key->ip_proto; in dpaa2_switch_flower_parse_key()
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