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/linux/drivers/net/dsa/mv88e6xxx/
H A Dleds.c1 // SPDX-License-Identifier: GPL-2.0-or-later
40 err = mv88e6xxx_port_led_read(p->chip, p->port, in mv88e6xxx_led_brightness_set()
67 return mv88e6xxx_port_led_write(p->chip, p->port, reg); in mv88e6xxx_led_brightness_set()
76 mv88e6xxx_reg_lock(p->chip); in mv88e6xxx_led0_brightness_set_blocking()
78 mv88e6xxx_reg_unlock(p->chip); in mv88e6xxx_led0_brightness_set_blocking()
89 mv88e6xxx_reg_lock(p->chip); in mv88e6xxx_led1_brightness_set_blocking()
91 mv88e6xxx_reg_unlock(p->chip); in mv88e6xxx_led1_brightness_set_blocking()
99 unsigned long rules; member
105 /* The following is a lookup table to check what rules we can support on a
106 * certain LED given restrictions such as that some rules only work with fiber
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/linux/tools/perf/Documentation/
H A Dperf-probe.txt1 perf-probe(1)
5 ----
6 perf-probe - Define new dynamic tracepoints
9 ---
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/linux/include/linux/crush/
H A Dcrush.h1 /* SPDX-License-Identifier: GPL-2.0 */
13 * CRUSH is a pseudo-random data distribution algorithm that
20 * https://www.ssrc.ucsc.edu/Papers/weil-sc06.pdf
39 * CRUSH uses user-defined "rules" to describe how inputs should be
73 #define CRUSH_CHOOSE_N_MINUS(x) (-(x))
99 * A bucket is a named container of other items (either devices or
106 * ------------------------------------------------
133 __u16 type; /* non-zero; type=0 is reserved for devices */
136 __u32 weight; /* 16-bit fixed point */
163 * __weight_set_size__, the weights found at __weight_set_size-1__ are
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/linux/include/uapi/linux/
H A Dbatadv_packet.h1 /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) */
16 * batadv_tp_is_error() - Check throughput meter return code for error
24 * enum batadv_packettype - types for batman-adv encapsulated packets
41 /* 0x00 - 0x3f: local packets or special rules for handling */
48 /* 0x40 - 0x7f: unicast */
56 /* 0x80 - 0xff: reserved */
60 * enum batadv_subtype - packet subtype for unicast4addr
77 * enum batadv_iv_flags - flags used in B.A.T.M.A.N. IV OGM packets
91 * enum batadv_icmp_packettype - ICMP message types
109 * enum batadv_mcast_flags - flags for multicast capabilities and settings
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H A Dvfio.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
38 /* Two-stage IOMMU */
44 * The No-IOMMU IOMMU offers no translation or isolation for devices and
45 * supports no ioctls outside of VFIO_CHECK_EXTENSION. Use of VFIO's No-IOMMU
101 /* -------- IOCTLs for VFIO file descriptor (/dev/vfio/vfio) -------- */
104 * VFIO_GET_API_VERSION - _IO(VFIO_TYPE, VFIO_BASE + 0)
115 * VFIO_CHECK_EXTENSION - _IOW(VFIO_TYPE, VFIO_BASE + 1, __u32)
124 * VFIO_SET_IOMMU - _IOW(VFIO_TYPE, VFIO_BASE + 2, __s32)
131 * Return: 0 on success, -errno on failure
136 /* -------- IOCTLs for GROUP file descriptors (/dev/vfio/$GROUP) -------- */
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H A Dethtool.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
23 * have the same layout for 32-bit and 64-bit userland.
35 * struct ethtool_cmd - DEPRECATED, link control and status
40 * interface supports autonegotiation or auto-detection.
41 * Read-only.
45 * auto-detection.
53 * @autoneg: Enable/disable autonegotiation and auto-detection;
57 * Read-only.
59 * obsoleted by &struct ethtool_coalesce. Read-only; deprecated.
61 * obsoleted by &struct ethtool_coalesce. Read-only; deprecated.
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H A Dnl80211.h6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
13 * Copyright 2015-2017 Intel Deutschland GmbH
14 * Copyright (C) 2018-2026 Intel Corporation
32 * be careful not to break things - i.e. don't move anything around or so
74 * - a setup station entry is added, not yet authorized, without any rate
76 * - when the TDLS setup is done, a single NL80211_CMD_SET_STATION is valid
79 * - %NL80211_TDLS_ENABLE_LINK is then used
80 * - after this, the only valid operation is to remove it by tearing down
95 * Frame registration is done on a per-interface basis and registrations
137 * software, like the AP-VLAN type in mac80211 for example, there's
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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)
57 +|-[u]OFFS(FETCHARG) : Fetch memory at FETCHARG +|- OFFS address.(\*3)(\*4)
58 this_cpu_read(FETCHARG) : Read the value of the per-CPU variable FETCHARG on the current CPU.
59 this_cpu_ptr(FETCHARG) : Get the address of the per-CPU variable FETCHARG on the current CPU.
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/linux/Documentation/gpu/
H A Ddrm-vm-bind-async.rst1 .. SPDX-License-Identifier: (GPL-2.0+ OR MIT)
10 * ``VRAM``: On-device memory. Sometimes referred to as device local memory.
16 an IOCTL. The operations include mapping and unmapping system- or
19 * ``syncobj``: A container that abstracts synchronization objects. The
20 synchronization objects can be either generic, like dma-fences or
24 * ``in-syncobj``: Argument to a VM_BIND IOCTL, the VM_BIND operation waits
27 * ``out-syncobj``: Argument to a VM_BIND_IOCTL, the VM_BIND operation
30 * ``dma-fence``: A cross-driver synchronization object. A basic
31 understanding of dma-fences is required to digest this
33 :doc:`dma-buf doc </driver-api/dma-buf>`.
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/linux/include/uapi/drm/
H A Dpvr_drm.h1 /* SPDX-License-Identifier: (GPL-2.0-only WITH Linux-syscall-note) OR MIT */
22 * - All members must be type-aligned.
23 * - The overall struct must be padded to 64-bit alignment.
24 * - Explicit padding is almost always required. This takes the form of
25 * ``_padding_[x]`` members of sufficient size to pad to the next power-of-two
29 * - Unions may only appear as the last member of a struct.
30 * - Individual union members may grow in the future. The space between the
36 * device and runtime. These structs are subject to the same rules set out
41 * struct drm_pvr_obj_array - Container used to pass arrays of objects
67 * DRM_PVR_OBJ_ARRAY() - Helper macro for filling &struct drm_pvr_obj_array.
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/linux/security/apparmor/
H A Dpolicy.c1 // SPDX-License-Identifier: GPL-2.0-only
7 * Copyright (C) 1998-2008 Novell/SUSE
8 * Copyright 2009-2010 Canonical Ltd.
10 * AppArmor policy is based around profiles, which contain the rules a
13 * visible set of profiles or by following a profiles attachment rules.
15 * Each profile exists in a profile namespace which is a container of
21 * :namespace:profile - used by kernel interfaces for easy detection
22 * namespace://profile - used by policy
27 * unconfined - special automatically generated unconfined profile
28 * inherit - special name to indicate profile inheritance
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/linux/security/
H A Ddevice_cgroup.c1 // SPDX-License-Identifier: GPL-2.0
3 * device_cgroup.c - device cgroup subsystem
8 #include <linux/bpf-cgroup.h>
30 * exception list locking rules:
72 list_add_tail(&new->list, dest); in dev_exceptions_copy()
79 list_del(&ex->list); in dev_exceptions_copy()
82 return -ENOMEM; in dev_exceptions_copy()
92 list_move_tail(&ex->list, dest); in dev_exceptions_move()
108 return -ENOMEM; in dev_exception_add()
110 list_for_each_entry(walk, &dev_cgroup->exceptions, list) { in dev_exception_add()
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/linux/drivers/net/ethernet/microchip/vcap/
H A Dvcap_api.c1 // SPDX-License-Identifier: GPL-2.0+
53 itr->offset = offset; in vcap_iter_set()
54 itr->sw_width = sw_width; in vcap_iter_set()
55 itr->regs_per_sw = DIV_ROUND_UP(sw_width, 32); in vcap_iter_set()
56 itr->tg = tg; in vcap_iter_set()
62 * A typegroup table ends with an all-zero terminator. in vcap_iter_skip_tg()
64 while (itr->tg->width && itr->offset >= itr->tg->offset) { in vcap_iter_skip_tg()
65 itr->offset += itr->tg->width; in vcap_iter_skip_tg()
66 itr->tg++; /* next typegroup */ in vcap_iter_skip_tg()
75 sw_idx = itr->offset / itr->sw_width; in vcap_iter_update()
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/linux/Documentation/arch/arm64/
H A Dacpi_object_usage.rst16 - Required: DSDT, FADT, GTDT, MADT, MCFG, RSDP, SPCR, XSDT
18 - Recommended: BERT, EINJ, ERST, HEST, PCCT, SSDT
20 - Optional: AGDI, BGRT, CEDT, CPEP, CSRT, DBG2, DRTM, ECDT, FACS, FPDT,
24 - Not supported: AEST, APMT, BOOT, DBGP, DMAR, ETDT, HPET, IVRS, LPIT,
41 This table describes a non-maskable event, that is used by the platform
68 Optional, not currently supported, with no real use-case for an
83 time as ARM-compatible hardware is available, and the specification
151 UEFI-based; if it is UEFI-based, this table may be supplied. When this
167 the hardware reduced profile, and only 64-bit address fields will
184 filled in properly - that the PSCI_COMPLIANT flag is set and that
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/linux/drivers/net/ethernet/broadcom/bnx2x/
H A Dbnx2x_sriov.h3 * Copyright 2009-2013 Broadcom Corporation
10 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
49 u32 cap; /* SR-IOV Capabilities */
50 u16 ctrl; /* SR-IOV Control */
81 /* VLAN-MACs object */
86 /* Queue Slow-path State object */
96 /* struct bnx2x_vf_queue_construct_params - prepare queue construction
97 * parameters: q-init, q-setup and SB index
157 * - xxq_count = 0 as the queues memory is not allocated yet.
159 * - sb_count = The number of status blocks configured for this VF in
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/linux/Documentation/bpf/
H A Dsigning.rst1 .. SPDX-License-Identifier: GPL-2.0
8 kernel verifies them at load time, and how Linux Security Modules (LSMs) -
9 including the BPF LSM - use the resulting verdict to enforce policy. It is
18 the kernel does not *require* signatures - an unsigned program loads exactly as
19 before - but it records a verdict (see `The verdict`_) that an LSM can gate on.
26 privileges (``CAP_BPF`` and any program-type-specific capability, subject to
29 *origin and integrity*, not safety - it lets a policy trust where the bytecode
38 - **map file descriptors** are patched into ``ld_imm64`` instructions
41 - **CO-RE relocations** rewrite field offsets, sizes and existence flags against
43 - **kfunc and ksym references** are resolved to ids/addresses in the running
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/linux/net/tipc/
H A Dname_table.c4 * Copyright (c) 2000-2006, 2014-2018, Ericsson AB
5 * Copyright (c) 2004-2008, 2010-2014, Wind River Systems
6 * Copyright (c) 2020-2021, Red Hat Inc
52 * struct service_range - container for all bindings of a service range
60 * Used by round-robin lookup algorithm
72 * struct tipc_service - container fo
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/linux/drivers/net/ethernet/intel/ice/
H A Dice_ethtool.c1 // SPDX-License-Identifier: GPL-2.0
37 return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) * 2); in ice_q_stats_len()
95 * The PF_STATs are appended to the netdev stats only when ethtool -S
329 u32 bitno; /* bit position in pf->flags */
338 ICE_PRIV_FLAG("link-down-on-close", ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA),
339 ICE_PRIV_FLAG("fw-lldp-agent", ICE_FLAG_FW_LLDP_AGENT),
340 ICE_PRIV_FLAG("vf-true-promisc-support",
342 ICE_PRIV_FLAG("mdd-auto-reset-vf", ICE_FLAG_MDD_AUTO_RESET_VF),
343 ICE_PRIV_FLAG("vf-vlan-pruning", ICE_FLAG_VF_VLAN_PRUNING),
434 struct ice_pf *pf = vsi->back; in __ice_get_drvinfo()
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H A Dice_lib.c1 // SPDX-License-Identifier: GPL-2.0
14 * ice_vsi_type_str - maps VSI type enum to string equivalents
38 * ice_vsi_ctrl_all_rx_rings - Start or stop a VSI's Rx rings
55 ice_flush(&vsi->back->hw); in ice_vsi_ctrl_all_rx_rings()
67 * ice_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the VSI
75 struct ice_pf *pf = vsi->back; in ice_vsi_alloc_arrays()
79 if (vsi->type == ICE_VSI_CHNL) in ice_vsi_alloc_arrays()
83 vsi->tx_rings = devm_kcalloc(dev, vsi->alloc_txq, in ice_vsi_alloc_arrays()
84 sizeof(*vsi->tx_rings), GFP_KERNEL); in ice_vsi_alloc_arrays()
85 if (!vsi->tx_rings) in ice_vsi_alloc_arrays()
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/linux/rust/kernel/
H A Ddma.rs1 // SPDX-License-Identifier: GPL-2.0
5 //! C header: [`include/linux/dma-mapping.h`](srctree/include/linux/dma-mapping.h)
49 /// Note that this may be `u64` even on 32-bit architectures.
68 unsafe fn dma_set_mask(&self, mask: DmaMask) -> Result {
70 // - By the type invariant of `device::Device`, `self.as_ref().as_raw()` is valid.
71 // - The safety requirement of this function guarantees that there are no concurrent calls
85 unsafe fn dma_set_coherent_mask(&self, mask: DmaMask) -> Resul
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/linux/drivers/net/ethernet/sfc/
H A Dmcdi_pcol.h1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright 2009-2018 Solarflare Communications Inc.
5 * Copyright 2019-2020 Xilinx Inc.
13 /* Power-on reset state */
35 /* The 'doorbell' addresses are hard-wired to alert the MC when written */
38 /* The rest of these are firmware-defined */
46 /* Values to be written to the per-port status dword in shared
71 * | | \--- Response
72 * | \------- Error
73 * \------------------------------ Resync (always set)
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/linux/net/ipv4/
H A Dfib_frontend.c1 // SPDX-License-Identifier: GPL-2.0-or-later
59 return -ENOMEM; in fib4_rules_init()
65 hlist_add_head_rcu(&local_table->tb_hlist, in fib4_rules_init()
66 &net->ipv4.fib_table_hash[TABLE_LOCAL_INDEX]); in fib4_rules_init()
67 hlist_add_head_rcu(&main_table->tb_hlist, in fib4_rules_init()
68 &net->ipv4.fib_table_hash[TABLE_MAIN_INDEX]); in fib4_rules_init()
73 return -ENOMEM; in fib4_rules_init()
91 if (id == RT_TABLE_LOCAL && !net->ipv4.fib_has_custom_rules) in fib_new_table()
98 spin_lock(&net->ipv4.fib_table_hash_lock); in fib_new_table()
102 spin_unlock(&net->ipv4.fib_table_hash_lock); in fib_new_table()
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/linux/kernel/time/
H A Dposix-cpu-timers.c1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/posix-timers.h>
20 #include "posix-timers.h"
28 pct->bases[CPUCLOCK_PROF].nextevt = cpu_limit * NSEC_PER_SEC; in posix_cputimers_group_init()
29 pct->timers_active = true; in posix_cputimers_group_init()
35 * tsk->signal->posix_cputimers.bases[clock].nextevt expiration cache if
39 * Returns 0 on success, -ESRCH on failure. Can fail if the task is exiting and
48 return -ESRCH; in update_rlimit_cpu()
102 ret = pid_for_clock(clock, false) ? 0 : -EINVAL; in validate_clock_permissions()
115 return pid_task(timer->it.cpu.pid, clock_pid_type(timer->it_clock)); in cpu_timer_task_rcu()
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/linux/drivers/net/dsa/
H A Dmt7530.c1 // SPDX-License-Identifier: GPL-2.0-only
52 if (priv->bus) in mt7530_mutex_lock()
53 mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED); in mt7530_mutex_lock()
59 if (priv->bus) in mt7530_mutex_unlock()
60 mutex_unlock(&priv->bus->mdio_loc in mt7530_mutex_unlock()
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/linux/drivers/usb/gadget/udc/cdns2/
H A Dcdns2-gadget.c1 // SPDX-License-Identifier: GPL-2.0
3 * Cadence USBHS-DEV Driver - gadget side.
28 #include <linux/dma-mapping.h>
36 #include "cdns2-gadget.h"
37 #include "cdns2-trace.h"
40 * set_reg_bit_32 - set bit in given 32 bits register.
51 * clear_reg_bit_32 - clear bit in given 32 bits register.
80 dma_index = readl(&pdev->adma_regs->ep_traddr) - pep->ring.dma; in cdns2_get_dma_pos()
93 if (pdev->selected_ep == ep) in cdns2_select_ep()
96 pdev->selected_ep = ep; in cdns2_select_ep()
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