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/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket * interface as the means of communication with the user level. * * Definitions for the Interfaces handler. * * Version: @(#)dev.h 1.0.10 08/12/93 * * Authors: Ross Biro * Fred N. van Kempen, <[email protected]> * Corey Minyard <[email protected]> * Donald J. Becker, <[email protected]> * Alan Cox, <[email protected]> * Bjorn Ekwall. <[email protected]> * Pekka Riikonen <[email protected]> * * Moved to /usr/include/linux for NET3 */ #ifndef _LINUX_NETDEVICE_H #define _LINUX_NETDEVICE_H #include <linux/timer.h> #include <linux/bug.h> #include <linux/delay.h> #include <linux/atomic.h> #include <linux/prefetch.h> #include <asm/cache.h> #include <asm/byteorder.h> #include <asm/local.h> #include <linux/percpu.h> #include <linux/rculist.h> #include <linux/workqueue.h> #include <linux/dynamic_queue_limits.h> #include <net/net_namespace.h> #ifdef CONFIG_DCB #include <net/dcbnl.h> #endif #include <net/netprio_cgroup.h> #include <linux/netdev_features.h> #include <linux/neighbour.h> #include <linux/netdevice_xmit.h> #include <uapi/linux/netdevice.h> #include <uapi/linux/if_bonding.h> #include <uapi/linux/pkt_cls.h> #include <uapi/linux/netdev.h> #include <linux/hashtable.h> #include <linux/rbtree.h> #include <net/net_trackers.h> #include <net/net_debug.h> #include <net/dropreason-core.h> #include <net/neighbour_tables.h> struct netpoll_info; struct device; struct ethtool_ops; struct kernel_hwtstamp_config; struct phy_device; struct dsa_port; struct ip_tunnel_parm_kern; struct macsec_context; struct macsec_ops; struct netdev_config; struct netdev_name_node; struct sd_flow_limit; struct sfp_bus; /* 802.11 specific */ struct wireless_dev; /* 802.15.4 specific */ struct wpan_dev; struct mpls_dev; /* UDP Tunnel offloads */ struct udp_tunnel_info; struct udp_tunnel_nic_info; struct udp_tunnel_nic; struct bpf_prog; struct xdp_buff; struct xdp_frame; struct xdp_metadata_ops; struct xdp_md; struct ethtool_netdev_state; struct phy_link_topology; struct hwtstamp_provider; typedef u32 xdp_features_t; void synchronize_net(void); void netdev_set_default_ethtool_ops(struct net_device *dev, const struct ethtool_ops *ops); void netdev_sw_irq_coalesce_default_on(struct net_device *dev); /* Backlog congestion levels */ #define NET_RX_SUCCESS 0 /* keep 'em coming, baby */ #define NET_RX_DROP 1 /* packet dropped */ #define MAX_NEST_DEV 8 /* * Transmit return codes: transmit return codes originate from three different * namespaces: * * - qdisc return codes * - driver transmit return codes * - errno values * * Drivers are allowed to return any one of those in their hard_start_xmit() * function. Real network devices commonly used with qdiscs should only return * the driver transmit return codes though - when qdiscs are used, the actual * transmission happens asynchronously, so the value is not propagated to * higher layers. Virtual network devices transmit synchronously; in this case * the driver transmit return codes are consumed by dev_queue_xmit(), and all * others are propagated to higher layers. */ /* qdisc ->enqueue() return codes. */ #define NET_XMIT_SUCCESS 0x00 #define NET_XMIT_DROP 0x01 /* skb dropped */ #define NET_XMIT_CN 0x02 /* congestion notification */ #define NET_XMIT_MASK 0x0f /* qdisc flags in net/sch_generic.h */ /* NET_XMIT_CN is special. It does not guarantee that this packet is lost. It * indicates that the device will soon be dropping packets, or already drops * some packets of the same priority; prompting us to send less aggressively. */ #define net_xmit_eval(e) ((e) == NET_XMIT_CN ? 0 : (e)) #define net_xmit_errno(e) ((e) != NET_XMIT_CN ? -ENOBUFS : 0) /* Driver transmit return codes */ #define NETDEV_TX_MASK 0xf0 enum netdev_tx { __NETDEV_TX_MIN = INT_MIN, /* make sure enum is signed */ NETDEV_TX_OK = 0x00, /* driver took care of packet */ NETDEV_TX_BUSY = 0x10, /* driver tx path was busy*/ }; typedef enum netdev_tx netdev_tx_t; /* * Current order: NETDEV_TX_MASK > NET_XMIT_MASK >= 0 is significant; * hard_start_xmit() return < NET_XMIT_MASK means skb was consumed. */ static inline bool dev_xmit_complete(int rc) { /* * Positive cases with an skb consumed by a driver: * - successful transmission (rc == NETDEV_TX_OK) * - error while transmitting (rc < 0) * - error while queueing to a different device (rc & NET_XMIT_MASK) */ if (likely(rc < NET_XMIT_MASK)) return true; return false; } /* * Compute the worst-case header length according to the protocols * used. */ #if defined(CONFIG_HYPERV_NET) # define LL_MAX_HEADER 128 #elif defined(CONFIG_WLAN) || IS_ENABLED(CONFIG_AX25) # if defined(CONFIG_MAC80211_MESH) # define LL_MAX_HEADER 128 # else # define LL_MAX_HEADER 96 # endif #else # define LL_MAX_HEADER 32 #endif #if !IS_ENABLED(CONFIG_NET_IPIP) && !IS_ENABLED(CONFIG_NET_IPGRE) && \ !IS_ENABLED(CONFIG_IPV6_SIT) && !IS_ENABLED(CONFIG_IPV6_TUNNEL) #define MAX_HEADER LL_MAX_HEADER #else #define MAX_HEADER (LL_MAX_HEADER + 48) #endif /* * Old network device statistics. Fields are native words * (unsigned long) so they can be read and written atomically. */ #define NET_DEV_STAT(FIELD) \ union { \ unsigned long FIELD; \ atomic_long_t __##FIELD; \ } struct net_device_stats { NET_DEV_STAT(rx_packets); NET_DEV_STAT(tx_packets); NET_DEV_STAT(rx_bytes); NET_DEV_STAT(tx_bytes); NET_DEV_STAT(rx_errors); NET_DEV_STAT(tx_errors); NET_DEV_STAT(rx_dropped); NET_DEV_STAT(tx_dropped); NET_DEV_STAT(multicast); NET_DEV_STAT(collisions); NET_DEV_STAT(rx_length_errors); NET_DEV_STAT(rx_over_errors); NET_DEV_STAT(rx_crc_errors); NET_DEV_STAT(rx_frame_errors); NET_DEV_STAT(rx_fifo_errors); NET_DEV_STAT(rx_missed_errors); NET_DEV_STAT(tx_aborted_errors); NET_DEV_STAT(tx_carrier_errors); NET_DEV_STAT(tx_fifo_errors); NET_DEV_STAT(tx_heartbeat_errors); NET_DEV_STAT(tx_window_errors); NET_DEV_STAT(rx_compressed); NET_DEV_STAT(tx_compressed); }; #undef NET_DEV_STAT /* per-cpu stats, allocated on demand. * Try to fit them in a single cache line, for dev_get_stats() sake. */ struct net_device_core_stats { unsigned long rx_dropped; unsigned long tx_dropped; unsigned long rx_nohandler; unsigned long rx_otherhost_dropped; } __aligned(4 * sizeof(unsigned long)); #include <linux/cache.h> #include <linux/skbuff.h> struct neighbour; struct neigh_parms; struct sk_buff; struct netdev_hw_addr { struct list_head list; struct rb_node node; unsigned char addr[MAX_ADDR_LEN]; unsigned char type; #define NETDEV_HW_ADDR_T_LAN 1 #define NETDEV_HW_ADDR_T_SAN 2 #define NETDEV_HW_ADDR_T_UNICAST 3 #define NETDEV_HW_ADDR_T_MULTICAST 4 bool global_use; int sync_cnt; int refcount; int synced; struct rcu_head rcu_head; }; struct netdev_hw_addr_list { struct list_head list; int count; /* Auxiliary tree for faster lookup on addition and deletion */ struct rb_root tree; }; #define netdev_hw_addr_list_count(l) ((l)->count) #define netdev_hw_addr_list_empty(l) (netdev_hw_addr_list_count(l) == 0) #define netdev_hw_addr_list_for_each(ha, l) \ list_for_each_entry(ha, &(l)->list, list) #define netdev_uc_count(dev) netdev_hw_addr_list_count(&(dev)->uc) #define netdev_uc_empty(dev) netdev_hw_addr_list_empty(&(dev)->uc) #define netdev_for_each_uc_addr(ha, dev) \ netdev_hw_addr_list_for_each(ha, &(dev)->uc) #define netdev_for_each_synced_uc_addr(_ha, _dev) \ netdev_for_each_uc_addr((_ha), (_dev)) \ if ((_ha)->sync_cnt) #define netdev_mc_count(dev) netdev_hw_addr_list_count(&(dev)->mc) #define netdev_mc_empty(dev) netdev_hw_addr_list_empty(&(dev)->mc) #define netdev_for_each_mc_addr(ha, dev) \ netdev_hw_addr_list_for_each(ha, &(dev)->mc) #define netdev_for_each_synced_mc_addr(_ha, _dev) \ netdev_for_each_mc_addr((_ha), (_dev)) \ if ((_ha)->sync_cnt) struct hh_cache { unsigned int hh_len; seqlock_t hh_lock; /* cached hardware header; allow for machine alignment needs. */ #define HH_DATA_MOD 16 #define HH_DATA_OFF(__len) \ (HH_DATA_MOD - (((__len - 1) & (HH_DATA_MOD - 1)) + 1)) #define HH_DATA_ALIGN(__len) \ (((__len)+(HH_DATA_MOD-1))&~(HH_DATA_MOD - 1)) unsigned long hh_data[HH_DATA_ALIGN(LL_MAX_HEADER) / sizeof(long)]; }; /* Reserve HH_DATA_MOD byte-aligned hard_header_len, but at least that much. * Alternative is: * dev->hard_header_len ? (dev->hard_header_len + * (HH_DATA_MOD - 1)) & ~(HH_DATA_MOD - 1) : 0 * * We could use other alignment values, but we must maintain the * relationship HH alignment <= LL alignment. */ #define LL_RESERVED_SPACE(dev) \ ((((dev)->hard_header_len + READ_ONCE((dev)->needed_headroom)) \ & ~(HH_DATA_MOD - 1)) + HH_DATA_MOD) #define LL_RESERVED_SPACE_EXTRA(dev,extra) \ ((((dev)->hard_header_len + READ_ONCE((dev)->needed_headroom) + (extra)) \ & ~(HH_DATA_MOD - 1)) + HH_DATA_MOD) struct header_ops { int (*create) (struct sk_buff *skb, struct net_device *dev, unsigned short type, const void *daddr, const void *saddr, unsigned int len); int (*parse)(const struct sk_buff *skb, unsigned char *haddr); int (*cache)(const struct neighbour *neigh, struct hh_cache *hh, __be16 type); void (*cache_update)(struct hh_cache *hh, const struct net_device *dev, const unsigned char *haddr); bool (*validate)(const char *ll_header, unsigned int len); __be16 (*parse_protocol)(const struct sk_buff *skb); }; /* These flag bits are private to the generic network queueing * layer; they may not be explicitly referenced by any other * code. */ enum netdev_state_t { __LINK_STATE_START, __LINK_STATE_PRESENT, __LINK_STATE_NOCARRIER, __LINK_STATE_LINKWATCH_PENDING, __LINK_STATE_DORMANT, __LINK_STATE_TESTING, }; struct gro_list { struct list_head list; int count; }; /* * size of gro hash buckets, must less than bit number of * napi_struct::gro_bitmask */ #define GRO_HASH_BUCKETS 8 /* * Structure for per-NAPI config */ struct napi_config { u64 gro_flush_timeout; u64 irq_suspend_timeout; u32 defer_hard_irqs; unsigned int napi_id; }; /* * Structure for NAPI scheduling similar to tasklet but with weighting */ struct napi_struct { /* The poll_list must only be managed by the entity which * changes the state of the NAPI_STATE_SCHED bit. This means * whoever atomically sets that bit can add this napi_struct * to the per-CPU poll_list, and whoever clears that bit * can remove from the list right before clearing the bit. */ struct list_head poll_list; unsigned long state; int weight; u32 defer_hard_irqs_count; unsigned long gro_bitmask; int (*poll)(struct napi_struct *, int); #ifdef CONFIG_NETPOLL /* CPU actively polling if netpoll is configured */ int poll_owner; #endif /* CPU on which NAPI has been scheduled for processing */ int list_owner; struct net_device *dev; struct gro_list gro_hash[GRO_HASH_BUCKETS]; struct sk_buff *skb; struct list_head rx_list; /* Pending GRO_NORMAL skbs */ int rx_count; /* length of rx_list */ unsigned int napi_id; /* protected by netdev_lock */ struct hrtimer timer; /* all fields past this point are write-protected by netdev_lock */ struct task_struct *thread; unsigned long gro_flush_timeout; unsigned long irq_suspend_timeout; u32 defer_hard_irqs; /* control-path-only fields follow */ struct list_head dev_list; struct hlist_node napi_hash_node; int irq; int index; struct napi_config *config; }; enum { NAPI_STATE_SCHED, /* Poll is scheduled */ NAPI_STATE_MISSED, /* reschedule a napi */ NAPI_STATE_DISABLE, /* Disable pending */ NAPI_STATE_NPSVC, /* Netpoll - don't dequeue from poll_list */ NAPI_STATE_LISTED, /* NAPI added to system lists */ NAPI_STATE_NO_BUSY_POLL, /* Do not add in napi_hash, no busy polling */ NAPI_STATE_IN_BUSY_POLL, /* sk_busy_loop() owns this NAPI */ NAPI_STATE_PREFER_BUSY_POLL, /* prefer busy-polling over softirq processing*/ NAPI_STATE_THREADED, /* The poll is performed inside its own thread*/ NAPI_STATE_SCHED_THREADED, /* Napi is currently scheduled in threaded mode */ }; enum { NAPIF_STATE_SCHED = BIT(NAPI_STATE_SCHED), NAPIF_STATE_MISSED = BIT(NAPI_STATE_MISSED), NAPIF_STATE_DISABLE = BIT(NAPI_STATE_DISABLE), NAPIF_STATE_NPSVC = BIT(NAPI_STATE_NPSVC), NAPIF_STATE_LISTED = BIT(NAPI_STATE_LISTED), NAPIF_STATE_NO_BUSY_POLL = BIT(NAPI_STATE_NO_BUSY_POLL), NAPIF_STATE_IN_BUSY_POLL = BIT(NAPI_STATE_IN_BUSY_POLL), NAPIF_STATE_PREFER_BUSY_POLL = BIT(NAPI_STATE_PREFER_BUSY_POLL), NAPIF_STATE_THREADED = BIT(NAPI_STATE_THREADED), NAPIF_STATE_SCHED_THREADED = BIT(NAPI_STATE_SCHED_THREADED), }; enum gro_result { GRO_MERGED, GRO_MERGED_FREE, GRO_HELD, GRO_NORMAL, GRO_CONSUMED, }; typedef enum gro_result gro_result_t; /* * enum rx_handler_result - Possible return values for rx_handlers. * @RX_HANDLER_CONSUMED: skb was consumed by rx_handler, do not process it * further. * @RX_HANDLER_ANOTHER: Do another round in receive path. This is indicated in * case skb->dev was changed by rx_handler. * @RX_HANDLER_EXACT: Force exact delivery, no wildcard. * @RX_HANDLER_PASS: Do nothing, pass the skb as if no rx_handler was called. * * rx_handlers are functions called from inside __netif_receive_skb(), to do * special processing of the skb, prior to delivery to protocol handlers. * * Currently, a net_device can only have a single rx_handler registered. Trying * to register a second rx_handler will return -EBUSY. * * To register a rx_handler on a net_device, use netdev_rx_handler_register(). * To unregister a rx_handler on a net_device, use * netdev_rx_handler_unregister(). * * Upon return, rx_handler is expected to tell __netif_receive_skb() what to * do with the skb. * * If the rx_handler consumed the skb in some way, it should return * RX_HANDLER_CONSUMED. This is appropriate when the rx_handler arranged for * the skb to be delivered in some other way. * * If the rx_handler changed skb->dev, to divert the skb to another * net_device, it should return RX_HANDLER_ANOTHER. The rx_handler for the * new device will be called if it exists. * * If the rx_handler decides the skb should be ignored, it should return * RX_HANDLER_EXACT. The skb will only be delivered to protocol handlers that * are registered on exact device (ptype->dev == skb->dev). * * If the rx_handler didn't change skb->dev, but wants the skb to be normally * delivered, it should return RX_HANDLER_PASS. * * A device without a registered rx_handler will behave as if rx_handler * returned RX_HANDLER_PASS. */ enum rx_handler_result { RX_HANDLER_CONSUMED, RX_HANDLER_ANOTHER, RX_HANDLER_EXACT, RX_HANDLER_PASS, }; typedef enum rx_handler_result rx_handler_result_t; typedef rx_handler_result_t rx_handler_func_t(struct sk_buff **pskb); void __napi_schedule(struct napi_struct *n); void __napi_schedule_irqoff(struct napi_struct *n); static inline bool napi_disable_pending(struct napi_struct *n) { return test_bit(NAPI_STATE_DISABLE, &n->state); } static inline bool napi_prefer_busy_poll(struct napi_struct *n) { return test_bit(NAPI_STATE_PREFER_BUSY_POLL, &n->state); } /** * napi_is_scheduled - test if NAPI is scheduled * @n: NAPI context * * This check is "best-effort". With no locking implemented, * a NAPI can be scheduled or terminate right after this check * and produce not precise results. * * NAPI_STATE_SCHED is an internal state, napi_is_scheduled * should not be used normally and napi_schedule should be * used instead. * * Use only if the driver really needs to check if a NAPI * is scheduled for example in the context of delayed timer * that can be skipped if a NAPI is already scheduled. * * Return: True if NAPI is scheduled, False otherwise. */ static inline bool napi_is_scheduled(struct napi_struct *n) { return test_bit(NAPI_STATE_SCHED, &n->state); } bool napi_schedule_prep(struct napi_struct *n); /** * napi_schedule - schedule NAPI poll * @n: NAPI context * * Schedule NAPI poll routine to be called if it is not already * running. * Return: true if we schedule a NAPI or false if not. * Refer to napi_schedule_prep() for additional reason on why * a NAPI might not be scheduled. */ static inline bool napi_schedule(struct napi_struct *n) { if (napi_schedule_prep(n)) { __napi_schedule(n); return true; } return false; } /** * napi_schedule_irqoff - schedule NAPI poll * @n: NAPI context * * Variant of napi_schedule(), assuming hard irqs are masked. */ static inline void napi_schedule_irqoff(struct napi_struct *n) { if (napi_schedule_prep(n)) __napi_schedule_irqoff(n); } /** * napi_complete_done - NAPI processing complete * @n: NAPI context * @work_done: number of packets processed * * Mark NAPI processing as complete. Should only be called if poll budget * has not been completely consumed. * Prefer over napi_complete(). * Return: false if device should avoid rearming interrupts. */ bool napi_complete_done(struct napi_struct *n, int work_done); static inline bool napi_complete(struct napi_struct *n) { return napi_complete_done(n, 0); } int dev_set_threaded(struct net_device *dev, bool threaded); void napi_disable(struct napi_struct *n); void napi_disable_locked(struct napi_struct *n); void napi_enable(struct napi_struct *n); void napi_enable_locked(struct napi_struct *n); /** * napi_synchronize - wait until NAPI is not running * @n: NAPI context * * Wait until NAPI is done being scheduled on this context. * Waits till any outstanding processing completes but * does not disable future activations. */ static inline void napi_synchronize(const struct napi_struct *n) { if (IS_ENABLED(CONFIG_SMP)) while (test_bit(NAPI_STATE_SCHED, &n->state)) msleep(1); else barrier(); } /** * napi_if_scheduled_mark_missed - if napi is running, set the * NAPIF_STATE_MISSED * @n: NAPI context * * If napi is running, set the NAPIF_STATE_MISSED, and return true if * NAPI is scheduled. **/ static inline bool napi_if_scheduled_mark_missed(struct napi_struct *n) { unsigned long val, new; val = READ_ONCE(n->state); do { if (val & NAPIF_STATE_DISABLE) return true; if (!(val & NAPIF_STATE_SCHED)) return false; new = val | NAPIF_STATE_MISSED; } while (!try_cmpxchg(&n->state, &val, new)); return true; } enum netdev_queue_state_t { __QUEUE_STATE_DRV_XOFF, __QUEUE_STATE_STACK_XOFF, __QUEUE_STATE_FROZEN, }; #define QUEUE_STATE_DRV_XOFF (1 << __QUEUE_STATE_DRV_XOFF) #define QUEUE_STATE_STACK_XOFF (1 << __QUEUE_STATE_STACK_XOFF) #define QUEUE_STATE_FROZEN (1 << __QUEUE_STATE_FROZEN) #define QUEUE_STATE_ANY_XOFF (QUEUE_STATE_DRV_XOFF | QUEUE_STATE_STACK_XOFF) #define QUEUE_STATE_ANY_XOFF_OR_FROZEN (QUEUE_STATE_ANY_XOFF | \ QUEUE_STATE_FROZEN) #define QUEUE_STATE_DRV_XOFF_OR_FROZEN (QUEUE_STATE_DRV_XOFF | \ QUEUE_STATE_FROZEN) /* * __QUEUE_STATE_DRV_XOFF is used by drivers to stop the transmit queue. The * netif_tx_* functions below are used to manipulate this flag. The * __QUEUE_STATE_STACK_XOFF flag is used by the stack to stop the transmit * queue independently. The netif_xmit_*stopped functions below are called * to check if the queue has been stopped by the driver or stack (either * of the XOFF bits are set in the state). Drivers should not need to call * netif_xmit*stopped functions, they should only be using netif_tx_*. */ struct netdev_queue { /* * read-mostly part */ struct net_device *dev; netdevice_tracker dev_tracker; struct Qdisc __rcu *qdisc; struct Qdisc __rcu *qdisc_sleeping; #ifdef CONFIG_SYSFS struct kobject kobj; #endif unsigned long tx_maxrate; /* * Number of TX timeouts for this queue * (/sys/class/net/DEV/Q/trans_timeout) */ atomic_long_t trans_timeout; /* Subordinate device that the queue has been assigned to */ struct net_device *sb_dev; #ifdef CONFIG_XDP_SOCKETS struct xsk_buff_pool *pool; #endif /* * write-mostly part */ #ifdef CONFIG_BQL struct dql dql; #endif spinlock_t _xmit_lock ____cacheline_aligned_in_smp; int xmit_lock_owner; /* * Time (in jiffies) of last Tx */ unsigned long trans_start; unsigned long state; /* * slow- / control-path part */ /* NAPI instance for the queue * Readers and writers must hold RTNL */ struct napi_struct *napi; #if defined(CONFIG_XPS) && defined(CONFIG_NUMA) int numa_node; #endif } ____cacheline_aligned_in_smp; extern int sysctl_fb_tunnels_only_for_init_net; extern int sysctl_devconf_inherit_init_net; /* * sysctl_fb_tunnels_only_for_init_net == 0 : For all netns * == 1 : For initns only * == 2 : For none. */ static inline bool net_has_fallback_tunnels(const struct net *net) { #if IS_ENABLED(CONFIG_SYSCTL) int fb_tunnels_only_for_init_net = READ_ONCE(sysctl_fb_tunnels_only_for_init_net); return !fb_tunnels_only_for_init_net || (net_eq(net, &init_net) && fb_tunnels_only_for_init_net == 1); #else return true; #endif } static inline int net_inherit_devconf(void) { #if IS_ENABLED(CONFIG_SYSCTL) return READ_ONCE(sysctl_devconf_inherit_init_net); #else return 0; #endif } static inline int netdev_queue_numa_node_read(const struct netdev_queue *q) { #if defined(CONFIG_XPS) && defined(CONFIG_NUMA) return q->numa_node; #else return NUMA_NO_NODE; #endif } static inline void netdev_queue_numa_node_write(struct netdev_queue *q, int node) { #if defined(CONFIG_XPS) && defined(CONFIG_NUMA) q->numa_node = node; #endif } #ifdef CONFIG_RFS_ACCEL bool rps_may_expire_flow(struct net_device *dev, u16 rxq_index, u32 flow_id, u16 filter_id); #endif /* XPS map type and offset of the xps map within net_device->xps_maps[]. */ enum xps_map_type { XPS_CPUS = 0, XPS_RXQS, XPS_MAPS_MAX, }; #ifdef CONFIG_XPS /* * This structure holds an XPS map which can be of variable length. The * map is an array of queues. */ struct xps_map { unsigned int len; unsigned int alloc_len; struct rcu_head rcu; u16 queues[]; }; #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16))) #define XPS_MIN_MAP_ALLOC ((L1_CACHE_ALIGN(offsetof(struct xps_map, queues[1])) \ - sizeof(struct xps_map)) / sizeof(u16)) /* * This structure holds all XPS maps for device. Maps are indexed by CPU. * * We keep track of the number of cpus/rxqs used when the struct is allocated, * in nr_ids. This will help not accessing out-of-bound memory. * * We keep track of the number of traffic classes used when the struct is * allocated, in num_tc. This will be used to navigate the maps, to ensure we're * not crossing its upper bound, as the original dev->num_tc can be updated in * the meantime. */ struct xps_dev_maps { struct rcu_head rcu; unsigned int nr_ids; s16 num_tc; struct xps_map __rcu *attr_map[]; /* Either CPUs map or RXQs map */ }; #define XPS_CPU_DEV_MAPS_SIZE(_tcs) (sizeof(struct xps_dev_maps) + \ (nr_cpu_ids * (_tcs) * sizeof(struct xps_map *))) #define XPS_RXQ_DEV_MAPS_SIZE(_tcs, _rxqs) (sizeof(struct xps_dev_maps) +\ (_rxqs * (_tcs) * sizeof(struct xps_map *))) #endif /* CONFIG_XPS */ #define TC_MAX_QUEUE 16 #define TC_BITMASK 15 /* HW offloaded queuing disciplines txq count and offset maps */ struct netdev_tc_txq { u16 count; u16 offset; }; #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) /* * This structure is to hold information about the device * configured to run FCoE protocol stack. */ struct netdev_fcoe_hbainfo { char manufacturer[64]; char serial_number[64]; char hardware_version[64]; char driver_version[64]; char optionrom_version[64]; char firmware_version[64]; char model[256]; char model_description[256]; }; #endif #define MAX_PHYS_ITEM_ID_LEN 32 /* This structure holds a unique identifier to identify some * physical item (port for example) used by a netdevice. */ struct netdev_phys_item_id { unsigned char id[MAX_PHYS_ITEM_ID_LEN]; unsigned char id_len; }; static inline bool netdev_phys_item_id_same(struct netdev_phys_item_id *a, struct netdev_phys_item_id *b) { return a->id_len == b->id_len && memcmp(a->id, b->id, a->id_len) == 0; } typedef u16 (*select_queue_fallback_t)(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev); enum net_device_path_type { DEV_PATH_ETHERNET = 0, DEV_PATH_VLAN, DEV_PATH_BRIDGE, DEV_PATH_PPPOE, DEV_PATH_DSA, DEV_PATH_MTK_WDMA, }; struct net_device_path { enum net_device_path_type type; const struct net_device *dev; union { struct { u16 id; __be16 proto; u8 h_dest[ETH_ALEN]; } encap; struct { enum { DEV_PATH_BR_VLAN_KEEP, DEV_PATH_BR_VLAN_TAG, DEV_PATH_BR_VLAN_UNTAG, DEV_PATH_BR_VLAN_UNTAG_HW, } vlan_mode; u16 vlan_id; __be16 vlan_proto; } bridge; struct { int port; u16 proto; } dsa; struct { u8 wdma_idx; u8 queue; u16 wcid; u8 bss; u8 amsdu; } mtk_wdma; }; }; #define NET_DEVICE_PATH_STACK_MAX 5 #define NET_DEVICE_PATH_VLAN_MAX 2 struct net_device_path_stack { int num_paths; struct net_device_path path[NET_DEVICE_PATH_STACK_MAX]; }; struct net_device_path_ctx { const struct net_device *dev; u8 daddr[ETH_ALEN]; int num_vlans; struct { u16 id; __be16 proto; } vlan[NET_DEVICE_PATH_VLAN_MAX]; }; enum tc_setup_type { TC_QUERY_CAPS, TC_SETUP_QDISC_MQPRIO, TC_SETUP_CLSU32, TC_SETUP_CLSFLOWER, TC_SETUP_CLSMATCHALL, TC_SETUP_CLSBPF, TC_SETUP_BLOCK, TC_SETUP_QDISC_CBS, TC_SETUP_QDISC_RED, TC_SETUP_QDISC_PRIO, TC_SETUP_QDISC_MQ, TC_SETUP_QDISC_ETF, TC_SETUP_ROOT_QDISC, TC_SETUP_QDISC_GRED, TC_SETUP_QDISC_TAPRIO, TC_SETUP_FT, TC_SETUP_QDISC_ETS, TC_SETUP_QDISC_TBF, TC_SETUP_QDISC_FIFO, TC_SETUP_QDISC_HTB, TC_SETUP_ACT, }; /* These structures hold the attributes of bpf state that are being passed * to the netdevice through the bpf op. */ enum bpf_netdev_command { /* Set or clear a bpf program used in the earliest stages of packet * rx. The prog will have been loaded as BPF_PROG_TYPE_XDP. The callee * is responsible for calling bpf_prog_put on any old progs that are * stored. In case of error, the callee need not release the new prog * reference, but on success it takes ownership and must bpf_prog_put * when it is no longer used. */ XDP_SETUP_PROG, XDP_SETUP_PROG_HW, /* BPF program for offload callbacks, invoked at program load time. */ BPF_OFFLOAD_MAP_ALLOC, BPF_OFFLOAD_MAP_FREE, XDP_SETUP_XSK_POOL, }; struct bpf_prog_offload_ops; struct netlink_ext_ack; struct xdp_umem; struct xdp_dev_bulk_queue; struct bpf_xdp_link; enum bpf_xdp_mode { XDP_MODE_SKB = 0, XDP_MODE_DRV = 1, XDP_MODE_HW = 2, __MAX_XDP_MODE }; struct bpf_xdp_entity { struct bpf_prog *prog; struct bpf_xdp_link *link; }; struct netdev_bpf { enum bpf_netdev_command command; union { /* XDP_SETUP_PROG */ struct { u32 flags; struct bpf_prog *prog; struct netlink_ext_ack *extack; }; /* BPF_OFFLOAD_MAP_ALLOC, BPF_OFFLOAD_MAP_FREE */ struct { struct bpf_offloaded_map *offmap; }; /* XDP_SETUP_XSK_POOL */ struct { struct xsk_buff_pool *pool; u16 queue_id; } xsk; }; }; /* Flags for ndo_xsk_wakeup. */ #define XDP_WAKEUP_RX (1 << 0) #define XDP_WAKEUP_TX (1 << 1) #ifdef CONFIG_XFRM_OFFLOAD struct xfrmdev_ops { int (*xdo_dev_state_add)(struct net_device *dev, struct xfrm_state *x, struct netlink_ext_ack *extack); void (*xdo_dev_state_delete)(struct net_device *dev, struct xfrm_state *x); void (*xdo_dev_state_free)(struct net_device *dev, struct xfrm_state *x); bool (*xdo_dev_offload_ok) (struct sk_buff *skb, struct xfrm_state *x); void (*xdo_dev_state_advance_esn) (struct xfrm_state *x); void (*xdo_dev_state_update_stats) (struct xfrm_state *x); int (*xdo_dev_policy_add) (struct xfrm_policy *x, struct netlink_ext_ack *extack); void (*xdo_dev_policy_delete) (struct xfrm_policy *x); void (*xdo_dev_policy_free) (struct xfrm_policy *x); }; #endif struct dev_ifalias { struct rcu_head rcuhead; char ifalias[]; }; struct devlink; struct tlsdev_ops; struct netdev_net_notifier { struct list_head list; struct notifier_block *nb; }; /* * This structure defines the management hooks for network devices. * The following hooks can be defined; unless noted otherwise, they are * optional and can be filled with a null pointer. * * int (*ndo_init)(struct net_device *dev); * This function is called once when a network device is registered. * The network device can use this for any late stage initialization * or semantic validation. It can fail with an error code which will * be propagated back to register_netdev. * * void (*ndo_uninit)(struct net_device *dev); * This function is called when device is unregistered or when registration * fails. It is not called if init fails. * * int (*ndo_open)(struct net_device *dev); * This function is called when a network device transitions to the up * state. * * int (*ndo_stop)(struct net_device *dev); * This function is called when a network device transitions to the down * state. * * netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb, * struct net_device *dev); * Called when a packet needs to be transmitted. * Returns NETDEV_TX_OK. Can return NETDEV_TX_BUSY, but you should stop * the queue before that can happen; it's for obsolete devices and weird * corner cases, but the stack really does a non-trivial amount * of useless work if you return NETDEV_TX_BUSY. * Required; cannot be NULL. * * netdev_features_t (*ndo_features_check)(struct sk_buff *skb, * struct net_device *dev * netdev_features_t features); * Called by core transmit path to determine if device is capable of * performing offload operations on a given packet. This is to give * the device an opportunity to implement any restrictions that cannot * be otherwise expressed by feature flags. The check is called with * the set of features that the stack has calculated and it returns * those the driver believes to be appropriate. * * u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb, * struct net_device *sb_dev); * Called to decide which queue to use when device supports multiple * transmit queues. * * void (*ndo_change_rx_flags)(struct net_device *dev, int flags); * This function is called to allow device receiver to make * changes to configuration when multicast or promiscuous is enabled. * * void (*ndo_set_rx_mode)(struct net_device *dev); * This function is called device changes address list filtering. * If driver handles unicast address filtering, it should set * IFF_UNICAST_FLT in its priv_flags. * * int (*ndo_set_mac_address)(struct net_device *dev, void *addr); * This function is called when the Media Access Control address * needs to be changed. If this interface is not defined, the * MAC address can not be changed. * * int (*ndo_validate_addr)(struct net_device *dev); * Test if Media Access Control address is valid for the device. * * int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd); * Old-style ioctl entry point. This is used internally by the * ieee802154 subsystem but is no longer called by the device * ioctl handler. * * int (*ndo_siocbond)(struct net_device *dev, struct ifreq *ifr, int cmd); * Used by the bonding driver for its device specific ioctls: * SIOCBONDENSLAVE, SIOCBONDRELEASE, SIOCBONDSETHWADDR, SIOCBONDCHANGEACTIVE, * SIOCBONDSLAVEINFOQUERY, and SIOCBONDINFOQUERY * * * int (*ndo_eth_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd); * Called for ethernet specific ioctls: SIOCGMIIPHY, SIOCGMIIREG, * SIOCSMIIREG, SIOCSHWTSTAMP and SIOCGHWTSTAMP. * * int (*ndo_set_config)(struct net_device *dev, struct ifmap *map); * Used to set network devices bus interface parameters. This interface * is retained for legacy reasons; new devices should use the bus * interface (PCI) for low level management. * * int (*ndo_change_mtu)(struct net_device *dev, int new_mtu); * Called when a user wants to change the Maximum Transfer Unit * of a device. * * void (*ndo_tx_timeout)(struct net_device *dev, unsigned int txqueue); * Callback used when the transmitter has not made any progress * for dev->watchdog ticks. * * void (*ndo_get_stats64)(struct net_device *dev, * struct rtnl_link_stats64 *storage); * struct net_device_stats* (*ndo_get_stats)(struct net_device *dev); * Called when a user wants to get the network device usage * statistics. Drivers must do one of the following: * 1. Define @ndo_get_stats64 to fill in a zero-initialised * rtnl_link_stats64 structure passed by the caller. * 2. Define @ndo_get_stats to update a net_device_stats structure * (which should normally be dev->stats) and return a pointer to * it. The structure may be changed asynchronously only if each * field is written atomically. * 3. Update dev->stats asynchronously and atomically, and define * neither operation. * * bool (*ndo_has_offload_stats)(const struct net_device *dev, int attr_id) * Return true if this device supports offload stats of this attr_id. * * int (*ndo_get_offload_stats)(int attr_id, const struct net_device *dev, * void *attr_data) * Get statistics for offload operations by attr_id. Write it into the * attr_data pointer. * * int (*ndo_vlan_rx_add_vid)(struct net_device *dev, __be16 proto, u16 vid); * If device supports VLAN filtering this function is called when a * VLAN id is registered. * * int (*ndo_vlan_rx_kill_vid)(struct net_device *dev, __be16 proto, u16 vid); * If device supports VLAN filtering this function is called when a * VLAN id is unregistered. * * void (*ndo_poll_controller)(struct net_device *dev); * * SR-IOV management functions. * int (*ndo_set_vf_mac)(struct net_device *dev, int vf, u8* mac); * int (*ndo_set_vf_vlan)(struct net_device *dev, int vf, u16 vlan, * u8 qos, __be16 proto); * int (*ndo_set_vf_rate)(struct net_device *dev, int vf, int min_tx_rate, * int max_tx_rate); * int (*ndo_set_vf_spoofchk)(struct net_device *dev, int vf, bool setting); * int (*ndo_set_vf_trust)(struct net_device *dev, int vf, bool setting); * int (*ndo_get_vf_config)(struct net_device *dev, * int vf, struct ifla_vf_info *ivf); * int (*ndo_set_vf_link_state)(struct net_device *dev, int vf, int link_state); * int (*ndo_set_vf_port)(struct net_device *dev, int vf, * struct nlattr *port[]); * * Enable or disable the VF ability to query its RSS Redirection Table and * Hash Key. This is needed since on some devices VF share this information * with PF and querying it may introduce a theoretical security risk. * int (*ndo_set_vf_rss_query_en)(struct net_device *dev, int vf, bool setting); * int (*ndo_get_vf_port)(struct net_device *dev, int vf, struct sk_buff *skb); * int (*ndo_setup_tc)(struct net_device *dev, enum tc_setup_type type, * void *type_data); * Called to setup any 'tc' scheduler, classifier or action on @dev. * This is always called from the stack with the rtnl lock held and netif * tx queues stopped. This allows the netdevice to perform queue * management safely. * * Fiber Channel over Ethernet (FCoE) offload functions. * int (*ndo_fcoe_enable)(struct net_device *dev); * Called when the FCoE protocol stack wants to start using LLD for FCoE * so the underlying device can perform whatever needed configuration or * initialization to support acceleration of FCoE traffic. * * int (*ndo_fcoe_disable)(struct net_device *dev); * Called when the FCoE protocol stack wants to stop using LLD for FCoE * so the underlying device can perform whatever needed clean-ups to * stop supporting acceleration of FCoE traffic. * * int (*ndo_fcoe_ddp_setup)(struct net_device *dev, u16 xid, * struct scatterlist *sgl, unsigned int sgc); * Called when the FCoE Initiator wants to initialize an I/O that * is a possible candidate for Direct Data Placement (DDP). The LLD can * perform necessary setup and returns 1 to indicate the device is set up * successfully to perform DDP on this I/O, otherwise this returns 0. * * int (*ndo_fcoe_ddp_done)(struct net_device *dev, u16 xid); * Called when the FCoE Initiator/Target is done with the DDPed I/O as * indicated by the FC exchange id 'xid', so the underlying device can * clean up and reuse resources for later DDP requests. * * int (*ndo_fcoe_ddp_target)(struct net_device *dev, u16 xid, * struct scatterlist *sgl, unsigned int sgc); * Called when the FCoE Target wants to initialize an I/O that * is a possible candidate for Direct Data Placement (DDP). The LLD can * perform necessary setup and returns 1 to indicate the device is set up * successfully to perform DDP on this I/O, otherwise this returns 0. * * int (*ndo_fcoe_get_hbainfo)(struct net_device *dev, * struct netdev_fcoe_hbainfo *hbainfo); * Called when the FCoE Protocol stack wants information on the underlying * device. This information is utilized by the FCoE protocol stack to * register attributes with Fiber Channel management service as per the * FC-GS Fabric Device Management Information(FDMI) specification. * * int (*ndo_fcoe_get_wwn)(struct net_device *dev, u64 *wwn, int type); * Called when the underlying device wants to override default World Wide * Name (WWN) generation mechanism in FCoE protocol stack to pass its own * World Wide Port Name (WWPN) or World Wide Node Name (WWNN) to the FCoE * protocol stack to use. * * RFS acceleration. * int (*ndo_rx_flow_steer)(struct net_device *dev, const struct sk_buff *skb, * u16 rxq_index, u32 flow_id); * Set hardware filter for RFS. rxq_index is the target queue index; * flow_id is a flow ID to be passed to rps_may_expire_flow() later. * Return the filter ID on success, or a negative error code. * * Slave management functions (for bridge, bonding, etc). * int (*ndo_add_slave)(struct net_device *dev, struct net_device *slave_dev); * Called to make another netdev an underling. * * int (*ndo_del_slave)(struct net_device *dev, struct net_device *slave_dev); * Called to release previously enslaved netdev. * * struct net_device *(*ndo_get_xmit_slave)(struct net_device *dev, * struct sk_buff *skb, * bool all_slaves); * Get the xmit slave of master device. If all_slaves is true, function * assume all the slaves can transmit. * * Feature/offload setting functions. * netdev_features_t (*ndo_fix_features)(struct net_device *dev, * netdev_features_t features); * Adjusts the requested feature flags according to device-specific * constraints, and returns the resulting flags. Must not modify * the device state. * * int (*ndo_set_features)(struct net_device *dev, netdev_features_t features); * Called to update device configuration to new features. Passed * feature set might be less than what was returned by ndo_fix_features()). * Must return >0 or -errno if it changed dev->features itself. * * int (*ndo_fdb_add)(struct ndmsg *ndm, struct nlattr *tb[], * struct net_device *dev, * const unsigned char *addr, u16 vid, u16 flags, * bool *notified, struct netlink_ext_ack *extack); * Adds an FDB entry to dev for addr. * Callee shall set *notified to true if it sent any appropriate * notification(s). Otherwise core will send a generic one. * int (*ndo_fdb_del)(struct ndmsg *ndm, struct nlattr *tb[], * struct net_device *dev, * const unsigned char *addr, u16 vid * bool *notified, struct netlink_ext_ack *extack); * Deletes the FDB entry from dev corresponding to addr. * Callee shall set *notified to true if it sent any appropriate * notification(s). Otherwise core will send a generic one. * int (*ndo_fdb_del_bulk)(struct nlmsghdr *nlh, struct net_device *dev, * struct netlink_ext_ack *extack); * int (*ndo_fdb_dump)(struct sk_buff *skb, struct netlink_callback *cb, * struct net_device *dev, struct net_device *filter_dev, * int *idx) * Used to add FDB entries to dump requests. Implementers should add * entries to skb and update idx with the number of entries. * * int (*ndo_mdb_add)(struct net_device *dev, struct nlattr *tb[], * u16 nlmsg_flags, struct netlink_ext_ack *extack); * Adds an MDB entry to dev. * int (*ndo_mdb_del)(struct net_device *dev, struct nlattr *tb[], * struct netlink_ext_ack *extack); * Deletes the MDB entry from dev. * int (*ndo_mdb_del_bulk)(struct net_device *dev, struct nlattr *tb[], * struct netlink_ext_ack *extack); * Bulk deletes MDB entries from dev. * int (*ndo_mdb_dump)(struct net_device *dev, struct sk_buff *skb, * struct netlink_callback *cb); * Dumps MDB entries from dev. The first argument (marker) in the netlink * callback is used by core rtnetlink code. * * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh, * u16 flags, struct netlink_ext_ack *extack) * int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq, * struct net_device *dev, u32 filter_mask, * int nlflags) * int (*ndo_bridge_dellink)(struct net_device *dev, struct nlmsghdr *nlh, * u16 flags); * * int (*ndo_change_carrier)(struct net_device *dev, bool new_carrier); * Called to change device carrier. Soft-devices (like dummy, team, etc) * which do not represent real hardware may define this to allow their * userspace components to manage their virtual carrier state. Devices * that determine carrier state from physical hardware properties (eg * network cables) or protocol-dependent mechanisms (eg * USB_CDC_NOTIFY_NETWORK_CONNECTION) should NOT implement this function. * * int (*ndo_get_phys_port_id)(struct net_device *dev, * struct netdev_phys_item_id *ppid); * Called to get ID of physical port of this device. If driver does * not implement this, it is assumed that the hw is not able to have * multiple net devices on single physical port. * * int (*ndo_get_port_parent_id)(struct net_device *dev, * struct netdev_phys_item_id *ppid) * Called to get the parent ID of the physical port of this device. * * void* (*ndo_dfwd_add_station)(struct net_device *pdev, * struct net_device *dev) * Called by upper layer devices to accelerate switching or other * station functionality into hardware. 'pdev is the lowerdev * to use for the offload and 'dev' is the net device that will * back the offload. Returns a pointer to the private structure * the upper layer will maintain. * void (*ndo_dfwd_del_station)(struct net_device *pdev, void *priv) * Called by upper layer device to delete the station created * by 'ndo_dfwd_add_station'. 'pdev' is the net device backing * the station and priv is the structure returned by the add * operation. * int (*ndo_set_tx_maxrate)(struct net_device *dev, * int queue_index, u32 maxrate); * Called when a user wants to set a max-rate limitation of specific * TX queue. * int (*ndo_get_iflink)(const struct net_device *dev); * Called to get the iflink value of this device. * int (*ndo_fill_metadata_dst)(struct net_device *dev, struct sk_buff *skb); * This function is used to get egress tunnel information for given skb. * This is useful for retrieving outer tunnel header parameters while * sampling packet. * void (*ndo_set_rx_headroom)(struct net_device *dev, int needed_headroom); * This function is used to specify the headroom that the skb must * consider when allocation skb during packet reception. Setting * appropriate rx headroom value allows avoiding skb head copy on * forward. Setting a negative value resets the rx headroom to the * default value. * int (*ndo_bpf)(struct net_device *dev, struct netdev_bpf *bpf); * This function is used to set or query state related to XDP on the * netdevice and manage BPF offload. See definition of * enum bpf_netdev_command for details. * int (*ndo_xdp_xmit)(struct net_device *dev, int n, struct xdp_frame **xdp, * u32 flags); * This function is used to submit @n XDP packets for transmit on a * netdevice. Returns number of frames successfully transmitted, frames * that got dropped are freed/returned via xdp_return_frame(). * Returns negative number, means general error invoking ndo, meaning * no frames were xmit'ed and core-caller will free all frames. * struct net_device *(*ndo_xdp_get_xmit_slave)(struct net_device *dev, * struct xdp_buff *xdp); * Get the xmit slave of master device based on the xdp_buff. * int (*ndo_xsk_wakeup)(struct net_device *dev, u32 queue_id, u32 flags); * This function is used to wake up the softirq, ksoftirqd or kthread * responsible for sending and/or receiving packets on a specific * queue id bound to an AF_XDP socket. The flags field specifies if * only RX, only Tx, or both should be woken up using the flags * XDP_WAKEUP_RX and XDP_WAKEUP_TX. * int (*ndo_tunnel_ctl)(struct net_device *dev, struct ip_tunnel_parm_kern *p, * int cmd); * Add, change, delete or get information on an IPv4 tunnel. * struct net_device *(*ndo_get_peer_dev)(struct net_device *dev); * If a device is paired with a peer device, return the peer instance. * The caller must be under RCU read context. * int (*ndo_fill_forward_path)(struct net_device_path_ctx *ctx, struct net_device_path *path); * Get the forwarding path to reach the real device from the HW destination address * ktime_t (*ndo_get_tstamp)(struct net_device *dev, * const struct skb_shared_hwtstamps *hwtstamps, * bool cycles); * Get hardware timestamp based on normal/adjustable time or free running * cycle counter. This function is required if physical clock supports a * free running cycle counter. * * int (*ndo_hwtstamp_get)(struct net_device *dev, * struct kernel_hwtstamp_config *kernel_config); * Get the currently configured hardware timestamping parameters for the * NIC device. * * int (*ndo_hwtstamp_set)(struct net_device *dev, * struct kernel_hwtstamp_config *kernel_config, * struct netlink_ext_ack *extack); * Change the hardware timestamping parameters for NIC device. */ struct net_device_ops { int (*ndo_init)(struct net_device *dev); void (*ndo_uninit)(struct net_device *dev); int (*ndo_open)(struct net_device *dev); int (*ndo_stop)(struct net_device *dev); netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb, struct net_device *dev); netdev_features_t (*ndo_features_check)(struct sk_buff *skb, struct net_device *dev, netdev_features_t features); u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev); void (*ndo_change_rx_flags)(struct net_device *dev, int flags); void (*ndo_set_rx_mode)(struct net_device *dev); int (*ndo_set_mac_address)(struct net_device *dev, void *addr); int (*ndo_validate_addr)(struct net_device *dev); int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd); int (*ndo_eth_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd); int (*ndo_siocbond)(struct net_device *dev, struct ifreq *ifr, int cmd); int (*ndo_siocwandev)(struct net_device *dev, struct if_settings *ifs); int (*ndo_siocdevprivate)(struct net_device *dev, struct ifreq *ifr, void __user *data, int cmd); int (*ndo_set_config)(struct net_device *dev, struct ifmap *map); int (*ndo_change_mtu)(struct net_device *dev, int new_mtu); int (*ndo_neigh_setup)(struct net_device *dev, struct neigh_parms *); void (*ndo_tx_timeout) (struct net_device *dev, unsigned int txqueue); void (*ndo_get_stats64)(struct net_device *dev, struct rtnl_link_stats64 *storage); bool (*ndo_has_offload_stats)(const struct net_device *dev, int attr_id); int (*ndo_get_offload_stats)(int attr_id, const struct net_device *dev, void *attr_data); struct net_device_stats* (*ndo_get_stats)(struct net_device *dev); int (*ndo_vlan_rx_add_vid)(struct net_device *dev, __be16 proto, u16 vid); int (*ndo_vlan_rx_kill_vid)(struct net_device *dev, __be16 proto, u16 vid); #ifdef CONFIG_NET_POLL_CONTROLLER void (*ndo_poll_controller)(struct net_device *dev); int (*ndo_netpoll_setup)(struct net_device *dev); void (*ndo_netpoll_cleanup)(struct net_device *dev); #endif int (*ndo_set_vf_mac)(struct net_device *dev, int queue, u8 *mac); int (*ndo_set_vf_vlan)(struct net_device *dev, int queue, u16 vlan, u8 qos, __be16 proto); int (*ndo_set_vf_rate)(struct net_device *dev, int vf, int min_tx_rate, int max_tx_rate); int (*ndo_set_vf_spoofchk)(struct net_device *dev, int vf, bool setting); int (*ndo_set_vf_trust)(struct net_device *dev, int vf, bool setting); int (*ndo_get_vf_config)(struct net_device *dev, int vf, struct ifla_vf_info *ivf); int (*ndo_set_vf_link_state)(struct net_device *dev, int vf, int link_state); int (*ndo_get_vf_stats)(struct net_device *dev, int vf, struct ifla_vf_stats *vf_stats); int (*ndo_set_vf_port)(struct net_device *dev, int vf, struct nlattr *port[]); int (*ndo_get_vf_port)(struct net_device *dev, int vf, struct sk_buff *skb); int (*ndo_get_vf_guid)(struct net_device *dev, int vf, struct ifla_vf_guid *node_guid, struct ifla_vf_guid *port_guid); int (*ndo_set_vf_guid)(struct net_device *dev, int vf, u64 guid, int guid_type); int (*ndo_set_vf_rss_query_en)( struct net_device *dev, int vf, bool setting); int (*ndo_setup_tc)(struct net_device *dev, enum tc_setup_type type, void *type_data); #if IS_ENABLED(CONFIG_FCOE) int (*ndo_fcoe_enable)(struct net_device *dev); int (*ndo_fcoe_disable)(struct net_device *dev); int (*ndo_fcoe_ddp_setup)(struct net_device *dev, u16 xid, struct scatterlist *sgl, unsigned int sgc); int (*ndo_fcoe_ddp_done)(struct net_device *dev, u16 xid); int (*ndo_fcoe_ddp_target)(struct net_device *dev, u16 xid, struct scatterlist *sgl, unsigned int sgc); int (*ndo_fcoe_get_hbainfo)(struct net_device *dev, struct netdev_fcoe_hbainfo *hbainfo); #endif #if IS_ENABLED(CONFIG_LIBFCOE) #define NETDEV_FCOE_WWNN 0 #define NETDEV_FCOE_WWPN 1 int (*ndo_fcoe_get_wwn)(struct net_device *dev, u64 *wwn, int type); #endif #ifdef CONFIG_RFS_ACCEL int (*ndo_rx_flow_steer)(struct net_device *dev, const struct sk_buff *skb, u16 rxq_index, u32 flow_id); #endif int (*ndo_add_slave)(struct net_device *dev, struct net_device *slave_dev, struct netlink_ext_ack *extack); int (*ndo_del_slave)(struct net_device *dev, struct net_device *slave_dev); struct net_device* (*ndo_get_xmit_slave)(struct net_device *dev, struct sk_buff *skb, bool all_slaves); struct net_device* (*ndo_sk_get_lower_dev)(struct net_device *dev, struct sock *sk); netdev_features_t (*ndo_fix_features)(struct net_device *dev, netdev_features_t features); int (*ndo_set_features)(struct net_device *dev, netdev_features_t features); int (*ndo_neigh_construct)(struct net_device *dev, struct neighbour *n); void (*ndo_neigh_destroy)(struct net_device *dev, struct neighbour *n); int (*ndo_fdb_add)(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid, u16 flags, bool *notified, struct netlink_ext_ack *extack); int (*ndo_fdb_del)(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid, bool *notified, struct netlink_ext_ack *extack); int (*ndo_fdb_del_bulk)(struct nlmsghdr *nlh, struct net_device *dev, struct netlink_ext_ack *extack); int (*ndo_fdb_dump)(struct sk_buff *skb, struct netlink_callback *cb, struct net_device *dev, struct net_device *filter_dev, int *idx); int (*ndo_fdb_get)(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid, u32 portid, u32 seq, struct netlink_ext_ack *extack); int (*ndo_mdb_add)(struct net_device *dev, struct nlattr *tb[], u16 nlmsg_flags, struct netlink_ext_ack *extack); int (*ndo_mdb_del)(struct net_device *dev, struct nlattr *tb[], struct netlink_ext_ack *extack); int (*ndo_mdb_del_bulk)(struct net_device *dev, struct nlattr *tb[], struct netlink_ext_ack *extack); int (*ndo_mdb_dump)(struct net_device *dev, struct sk_buff *skb, struct netlink_callback *cb); int (*ndo_mdb_get)(struct net_device *dev, struct nlattr *tb[], u32 portid, u32 seq, struct netlink_ext_ack *extack); int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh, u16 flags, struct netlink_ext_ack *extack); int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, u32 filter_mask, int nlflags); int (*ndo_bridge_dellink)(struct net_device *dev, struct nlmsghdr *nlh, u16 flags); int (*ndo_change_carrier)(struct net_device *dev, bool new_carrier); int (*ndo_get_phys_port_id)(struct net_device *dev, struct netdev_phys_item_id *ppid); int (*ndo_get_port_parent_id)(struct net_device *dev, struct netdev_phys_item_id *ppid); int (*ndo_get_phys_port_name)(struct net_device *dev, char *name, size_t len); void* (*ndo_dfwd_add_station)(struct net_device *pdev, struct net_device *dev); void (*ndo_dfwd_del_station)(struct net_device *pdev, void *priv); int (*ndo_set_tx_maxrate)(struct net_device *dev, int queue_index, u32 maxrate); int (*ndo_get_iflink)(const struct net_device *dev); int (*ndo_fill_metadata_dst)(struct net_device *dev, struct sk_buff *skb); void (*ndo_set_rx_headroom)(struct net_device *dev, int needed_headroom); int (*ndo_bpf)(struct net_device *dev, struct netdev_bpf *bpf); int (*ndo_xdp_xmit)(struct net_device *dev, int n, struct xdp_frame **xdp, u32 flags); struct net_device * (*ndo_xdp_get_xmit_slave)(struct net_device *dev, struct xdp_buff *xdp); int (*ndo_xsk_wakeup)(struct net_device *dev, u32 queue_id, u32 flags); int (*ndo_tunnel_ctl)(struct net_device *dev, struct ip_tunnel_parm_kern *p, int cmd); struct net_device * (*ndo_get_peer_dev)(struct net_device *dev); int (*ndo_fill_forward_path)(struct net_device_path_ctx *ctx, struct net_device_path *path); ktime_t (*ndo_get_tstamp)(struct net_device *dev, const struct skb_shared_hwtstamps *hwtstamps, bool cycles); int (*ndo_hwtstamp_get)(struct net_device *dev, struct kernel_hwtstamp_config *kernel_config); int (*ndo_hwtstamp_set)(struct net_device *dev, struct kernel_hwtstamp_config *kernel_config, struct netlink_ext_ack *extack); #if IS_ENABLED(CONFIG_NET_SHAPER) /** * @net_shaper_ops: Device shaping offload operations * see include/net/net_shapers.h */ const struct net_shaper_ops *net_shaper_ops; #endif }; /** * enum netdev_priv_flags - &struct net_device priv_flags * * These are the &struct net_device, they are only set internally * by drivers and used in the kernel. These flags are invisible to * userspace; this means that the order of these flags can change * during any kernel release. * * You should add bitfield booleans after either net_device::priv_flags * (hotpath) or ::threaded (slowpath) instead of extending these flags. * * @IFF_802_1Q_VLAN: 802.1Q VLAN device * @IFF_EBRIDGE: Ethernet bridging device * @IFF_BONDING: bonding master or slave * @IFF_ISATAP: ISATAP interface (RFC4214) * @IFF_WAN_HDLC: WAN HDLC device * @IFF_XMIT_DST_RELEASE: dev_hard_start_xmit() is allowed to * release skb->dst * @IFF_DONT_BRIDGE: disallow bridging this ether dev * @IFF_DISABLE_NETPOLL: disable netpoll at run-time * @IFF_MACVLAN_PORT: device used as macvlan port * @IFF_BRIDGE_PORT: device used as bridge port * @IFF_OVS_DATAPATH: device used as Open vSwitch datapath port * @IFF_TX_SKB_SHARING: The interface supports sharing skbs on transmit * @IFF_UNICAST_FLT: Supports unicast filtering * @IFF_TEAM_PORT: device used as team port * @IFF_SUPP_NOFCS: device supports sending custom FCS * @IFF_LIVE_ADDR_CHANGE: device supports hardware address * change when it's running * @IFF_MACVLAN: Macvlan device * @IFF_XMIT_DST_RELEASE_PERM: IFF_XMIT_DST_RELEASE not taking into account * underlying stacked devices * @IFF_L3MDEV_MASTER: device is an L3 master device * @IFF_NO_QUEUE: device can run without qdisc attached * @IFF_OPENVSWITCH: device is a Open vSwitch master * @IFF_L3MDEV_SLAVE: device is enslaved to an L3 master device * @IFF_TEAM: device is a team device * @IFF_RXFH_CONFIGURED: device has had Rx Flow indirection table configured * @IFF_PHONY_HEADROOM: the headroom value is controlled by an external * entity (i.e. the master device for bridged veth) * @IFF_MACSEC: device is a MACsec device * @IFF_NO_RX_HANDLER: device doesn't support the rx_handler hook * @IFF_FAILOVER: device is a failover master device * @IFF_FAILOVER_SLAVE: device is lower dev of a failover master device * @IFF_L3MDEV_RX_HANDLER: only invoke the rx handler of L3 master device * @IFF_NO_ADDRCONF: prevent ipv6 addrconf * @IFF_TX_SKB_NO_LINEAR: device/driver is capable of xmitting frames with * skb_headlen(skb) == 0 (data starts from frag0) */ enum netdev_priv_flags { IFF_802_1Q_VLAN = 1<<0, IFF_EBRIDGE = 1<<1, IFF_BONDING = 1<<2, IFF_ISATAP = 1<<3, IFF_WAN_HDLC = 1<<4, IFF_XMIT_DST_RELEASE = 1<<5, IFF_DONT_BRIDGE = 1<<6, IFF_DISABLE_NETPOLL = 1<<7, IFF_MACVLAN_PORT = 1<<8, IFF_BRIDGE_PORT = 1<<9, IFF_OVS_DATAPATH = 1<<10, IFF_TX_SKB_SHARING = 1<<11, IFF_UNICAST_FLT = 1<<12, IFF_TEAM_PORT = 1<<13, IFF_SUPP_NOFCS = 1<<14, IFF_LIVE_ADDR_CHANGE = 1<<15, IFF_MACVLAN = 1<<16, IFF_XMIT_DST_RELEASE_PERM = 1<<17, IFF_L3MDEV_MASTER = 1<<18, IFF_NO_QUEUE = 1<<19, IFF_OPENVSWITCH = 1<<20, IFF_L3MDEV_SLAVE = 1<<21, IFF_TEAM = 1<<22, IFF_RXFH_CONFIGURED = 1<<23, IFF_PHONY_HEADROOM = 1<<24, IFF_MACSEC = 1<<25, IFF_NO_RX_HANDLER = 1<<26, IFF_FAILOVER = 1<<27, IFF_FAILOVER_SLAVE = 1<<28, IFF_L3MDEV_RX_HANDLER = 1<<29, IFF_NO_ADDRCONF = BIT_ULL(30), IFF_TX_SKB_NO_LINEAR = BIT_ULL(31), }; /* Specifies the type of the struct net_device::ml_priv pointer */ enum netdev_ml_priv_type { ML_PRIV_NONE, ML_PRIV_CAN, }; enum netdev_stat_type { NETDEV_PCPU_STAT_NONE, NETDEV_PCPU_STAT_LSTATS, /* struct pcpu_lstats */ NETDEV_PCPU_STAT_TSTATS, /* struct pcpu_sw_netstats */ NETDEV_PCPU_STAT_DSTATS, /* struct pcpu_dstats */ }; enum netdev_reg_state { NETREG_UNINITIALIZED = 0, NETREG_REGISTERED, /* completed register_netdevice */ NETREG_UNREGISTERING, /* called unregister_netdevice */ NETREG_UNREGISTERED, /* completed unregister todo */ NETREG_RELEASED, /* called free_netdev */ NETREG_DUMMY, /* dummy device for NAPI poll */ }; /** * struct net_device - The DEVICE structure. * * Actually, this whole structure is a big mistake. It mixes I/O * data with strictly "high-level" data, and it has to know about * almost every data structure used in the INET module. * * @priv_flags: flags invisible to userspace defined as bits, see * enum netdev_priv_flags for the definitions * @lltx: device supports lockless Tx. Deprecated for real HW * drivers. Mainly used by logical interfaces, such as * bonding and tunnels * * @name: This is the first field of the "visible" part of this structure * (i.e. as seen by users in the "Space.c" file). It is the name * of the interface. * * @name_node: Name hashlist node * @ifalias: SNMP alias * @mem_end: Shared memory end * @mem_start: Shared memory start * @base_addr: Device I/O address * @irq: Device IRQ number * * @state: Generic network queuing layer state, see netdev_state_t * @dev_list: The global list of network devices * @napi_list: List entry used for polling NAPI devices * @unreg_list: List entry when we are unregistering the * device; see the function unregister_netdev * @close_list: List entry used when we are closing the device * @ptype_all: Device-specific packet handlers for all protocols * @ptype_specific: Device-specific, protocol-specific packet handlers * * @adj_list: Directly linked devices, like slaves for bonding * @features: Currently active device features * @hw_features: User-changeable features * * @wanted_features: User-requested features * @vlan_features: Mask of features inheritable by VLAN devices * * @hw_enc_features: Mask of features inherited by encapsulating devices * This field indicates what encapsulation * offloads the hardware is capable of doing, * and drivers will need to set them appropriately. * * @mpls_features: Mask of features inheritable by MPLS * @gso_partial_features: value(s) from NETIF_F_GSO\* * * @ifindex: interface index * @group: The group the device belongs to * * @stats: Statistics struct, which was left as a legacy, use * rtnl_link_stats64 instead * * @core_stats: core networking counters, * do not use this in drivers * @carrier_up_count: Number of times the carrier has been up * @carrier_down_count: Number of times the carrier has been down * * @wireless_handlers: List of functions to handle Wireless Extensions, * instead of ioctl, * see <net/iw_handler.h> for details. * * @netdev_ops: Includes several pointers to callbacks, * if one wants to override the ndo_*() functions * @xdp_metadata_ops: Includes pointers to XDP metadata callbacks. * @xsk_tx_metadata_ops: Includes pointers to AF_XDP TX metadata callbacks. * @ethtool_ops: Management operations * @l3mdev_ops: Layer 3 master device operations * @ndisc_ops: Includes callbacks for different IPv6 neighbour * discovery handling. Necessary for e.g. 6LoWPAN. * @xfrmdev_ops: Transformation offload operations * @tlsdev_ops: Transport Layer Security offload operations * @header_ops: Includes callbacks for creating,parsing,caching,etc * of Layer 2 headers. * * @flags: Interface flags (a la BSD) * @xdp_features: XDP capability supported by the device * @gflags: Global flags ( kept as legacy ) * @priv_len: Size of the ->priv flexible array * @priv: Flexible array containing private data * @operstate: RFC2863 operstate * @link_mode: Mapping policy to operstate * @if_port: Selectable AUI, TP, ... * @dma: DMA channel * @mtu: Interface MTU value * @min_mtu: Interface Minimum MTU value * @max_mtu: Interface Maximum MTU value * @type: Interface hardware type * @hard_header_len: Maximum hardware header length. * @min_header_len: Minimum hardware header length * * @needed_headroom: Extra headroom the hardware may need, but not in all * cases can this be guaranteed * @needed_tailroom: Extra tailroom the hardware may need, but not in all * cases can this be guaranteed. Some cases also use * LL_MAX_HEADER instead to allocate the skb * * interface address info: * * @perm_addr: Permanent hw address * @addr_assign_type: Hw address assignment type * @addr_len: Hardware address length * @upper_level: Maximum depth level of upper devices. * @lower_level: Maximum depth level of lower devices. * @neigh_priv_len: Used in neigh_alloc() * @dev_id: Used to differentiate devices that share * the same link layer address * @dev_port: Used to differentiate devices that share * the same function * @addr_list_lock: XXX: need comments on this one * @name_assign_type: network interface name assignment type * @uc_promisc: Counter that indicates promiscuous mode * has been enabled due to the need to listen to * additional unicast addresses in a device that * does not implement ndo_set_rx_mode() * @uc: unicast mac addresses * @mc: multicast mac addresses * @dev_addrs: list of device hw addresses * @queues_kset: Group of all Kobjects in the Tx and RX queues * @promiscuity: Number of times the NIC is told to work in * promiscuous mode; if it becomes 0 the NIC will * exit promiscuous mode * @allmulti: Counter, enables or disables allmulticast mode * * @vlan_info: VLAN info * @dsa_ptr: dsa specific data * @tipc_ptr: TIPC specific data * @atalk_ptr: AppleTalk link * @ip_ptr: IPv4 specific data * @ip6_ptr: IPv6 specific data * @ax25_ptr: AX.25 specific data * @ieee80211_ptr: IEEE 802.11 specific data, assign before registering * @ieee802154_ptr: IEEE 802.15.4 low-rate Wireless Personal Area Network * device struct * @mpls_ptr: mpls_dev struct pointer * @mctp_ptr: MCTP specific data * * @dev_addr: Hw address (before bcast, * because most packets are unicast) * * @_rx: Array of RX queues * @num_rx_queues: Number of RX queues * allocated at register_netdev() time * @real_num_rx_queues: Number of RX queues currently active in device * @xdp_prog: XDP sockets filter program pointer * * @rx_handler: handler for received packets * @rx_handler_data: XXX: need comments on this one * @tcx_ingress: BPF & clsact qdisc specific data for ingress processing * @ingress_queue: XXX: need comments on this one * @nf_hooks_ingress: netfilter hooks executed for ingress packets * @broadcast: hw bcast address * * @rx_cpu_rmap: CPU reverse-mapping for RX completion interrupts, * indexed by RX queue number. Assigned by driver. * This must only be set if the ndo_rx_flow_steer * operation is defined * @index_hlist: Device index hash chain * * @_tx: Array of TX queues * @num_tx_queues: Number of TX queues allocated at alloc_netdev_mq() time * @real_num_tx_queues: Number of TX queues currently active in device * @qdisc: Root qdisc from userspace point of view * @tx_queue_len: Max frames per queue allowed * @tx_global_lock: XXX: need comments on this one * @xdp_bulkq: XDP device bulk queue * @xps_maps: all CPUs/RXQs maps for XPS device * * @xps_maps: XXX: need comments on this one * @tcx_egress: BPF & clsact qdisc specific data for egress processing * @nf_hooks_egress: netfilter hooks executed for egress packets * @qdisc_hash: qdisc hash table * @watchdog_timeo: Represents the timeout that is used by * the watchdog (see dev_watchdog()) * @watchdog_timer: List of timers * * @proto_down_reason: reason a netdev interface is held down * @pcpu_refcnt: Number of references to this device * @dev_refcnt: Number of references to this device * @refcnt_tracker: Tracker directory for tracked references to this device * @todo_list: Delayed register/unregister * @link_watch_list: XXX: need comments on this one * * @reg_state: Register/unregister state machine * @dismantle: Device is going to be freed * @rtnl_link_state: This enum represents the phases of creating * a new link * * @needs_free_netdev: Should unregister perform free_netdev? * @priv_destructor: Called from unregister * @npinfo: XXX: need comments on this one * @nd_net: Network namespace this network device is inside * * @ml_priv: Mid-layer private * @ml_priv_type: Mid-layer private type * * @pcpu_stat_type: Type of device statistics which the core should * allocate/free: none, lstats, tstats, dstats. none * means the driver is handling statistics allocation/ * freeing internally. * @lstats: Loopback statistics: packets, bytes * @tstats: Tunnel statistics: RX/TX packets, RX/TX bytes * @dstats: Dummy statistics: RX/TX/drop packets, RX/TX bytes * * @garp_port: GARP * @mrp_port: MRP * * @dm_private: Drop monitor private * * @dev: Class/net/name entry * @sysfs_groups: Space for optional device, statistics and wireless * sysfs groups * * @sysfs_rx_queue_group: Space for optional per-rx queue attributes * @rtnl_link_ops: Rtnl_link_ops * @stat_ops: Optional ops for queue-aware statistics * @queue_mgmt_ops: Optional ops for queue management * * @gso_max_size: Maximum size of generic segmentation offload * @tso_max_size: Device (as in HW) limit on the max TSO request size * @gso_max_segs: Maximum number of segments that can be passed to the * NIC for GSO * @tso_max_segs: Device (as in HW) limit on the max TSO segment count * @gso_ipv4_max_size: Maximum size of generic segmentation offload, * for IPv4. * * @dcbnl_ops: Data Center Bridging netlink ops * @num_tc: Number of traffic classes in the net device * @tc_to_txq: XXX: need comments on this one * @prio_tc_map: XXX: need comments on this one * * @fcoe_ddp_xid: Max exchange id for FCoE LRO by ddp * * @priomap: XXX: need comments on this one * @link_topo: Physical link topology tracking attached PHYs * @phydev: Physical device may attach itself * for hardware timestamping * @sfp_bus: attached &struct sfp_bus structure. * * @qdisc_tx_busylock: lockdep class annotating Qdisc->busylock spinlock * * @proto_down: protocol port state information can be sent to the * switch driver and used to set the phys state of the * switch port. * * @threaded: napi threaded mode is enabled * * @see_all_hwtstamp_requests: device wants to see calls to * ndo_hwtstamp_set() for all timestamp requests * regardless of source, even if those aren't * HWTSTAMP_SOURCE_NETDEV * @change_proto_down: device supports setting carrier via IFLA_PROTO_DOWN * @netns_local: interface can't change network namespaces * @fcoe_mtu: device supports maximum FCoE MTU, 2158 bytes * * @net_notifier_list: List of per-net netdev notifier block * that follow this device when it is moved * to another network namespace. * * @macsec_ops: MACsec offloading ops * * @udp_tunnel_nic_info: static structure describing the UDP tunnel * offload capabilities of the device * @udp_tunnel_nic: UDP tunnel offload state * @ethtool: ethtool related state * @xdp_state: stores info on attached XDP BPF programs * * @nested_level: Used as a parameter of spin_lock_nested() of * dev->addr_list_lock. * @unlink_list: As netif_addr_lock() can be called recursively, * keep a list of interfaces to be deleted. * @gro_max_size: Maximum size of aggregated packet in generic * receive offload (GRO) * @gro_ipv4_max_size: Maximum size of aggregated packet in generic * receive offload (GRO), for IPv4. * @xdp_zc_max_segs: Maximum number of segments supported by AF_XDP * zero copy driver * * @dev_addr_shadow: Copy of @dev_addr to catch direct writes. * @linkwatch_dev_tracker: refcount tracker used by linkwatch. * @watchdog_dev_tracker: refcount tracker used by watchdog. * @dev_registered_tracker: tracker for reference held while * registered * @offload_xstats_l3: L3 HW stats for this netdevice. * * @devlink_port: Pointer to related devlink port structure. * Assigned by a driver before netdev registration using * SET_NETDEV_DEVLINK_PORT macro. This pointer is static * during the time netdevice is registered. * * @dpll_pin: Pointer to the SyncE source pin of a DPLL subsystem, * where the clock is recovered. * * @max_pacing_offload_horizon: max EDT offload horizon in nsec. * @napi_config: An array of napi_config structures containing per-NAPI * settings. * @gro_flush_timeout: timeout for GRO layer in NAPI * @napi_defer_hard_irqs: If not zero, provides a counter that would * allow to avoid NIC hard IRQ, on busy queues. * * @neighbours: List heads pointing to this device's neighbours' * dev_list, one per address-family. * @hwprov: Tracks which PTP performs hardware packet time stamping. * * FIXME: cleanup struct net_device such that network protocol info * moves out. */ struct net_device { /* Cacheline organization can be found documented in * Documentation/networking/net_cachelines/net_device.rst. * Please update the document when adding new fields. */ /* TX read-mostly hotpath */ __cacheline_group_begin(net_device_read_tx); struct_group(priv_flags_fast, unsigned long priv_flags:32; unsigned long lltx:1; ); const struct net_device_ops *netdev_ops; const struct header_ops *header_ops; struct netdev_queue *_tx; netdev_features_t gso_partial_features; unsigned int real_num_tx_queues; unsigned int gso_max_size; unsigned int gso_ipv4_max_size; u16 gso_max_segs; s16 num_tc; /* Note : dev->mtu is often read without holding a lock. * Writers usually hold RTNL. * It is recommended to use READ_ONCE() to annotate the reads, * and to use WRITE_ONCE() to annotate the writes. */ unsigned int mtu; unsigned short needed_headroom; struct netdev_tc_txq tc_to_txq[TC_MAX_QUEUE]; #ifdef CONFIG_XPS struct xps_dev_maps __rcu *xps_maps[XPS_MAPS_MAX]; #endif #ifdef CONFIG_NETFILTER_EGRESS struct nf_hook_entries __rcu *nf_hooks_egress; #endif #ifdef CONFIG_NET_XGRESS struct bpf_mprog_entry __rcu *tcx_egress; #endif __cacheline_group_end(net_device_read_tx); /* TXRX read-mostly hotpath */ __cacheline_group_begin(net_device_read_txrx); union { struct pcpu_lstats __percpu *lstats; struct pcpu_sw_netstats __percpu *tstats; struct pcpu_dstats __percpu *dstats; }; unsigned long state; unsigned int flags; unsigned short hard_header_len; netdev_features_t features; struct inet6_dev __rcu *ip6_ptr; __cacheline_group_end(net_device_read_txrx); /* RX read-mostly hotpath */ __cacheline_group_begin(net_device_read_rx); struct bpf_prog __rcu *xdp_prog; struct list_head ptype_specific; int ifindex; unsigned int real_num_rx_queues; struct netdev_rx_queue *_rx; unsigned int gro_max_size; unsigned int gro_ipv4_max_size; rx_handler_func_t __rcu *rx_handler; void __rcu *rx_handler_data; possible_net_t nd_net; #ifdef CONFIG_NETPOLL struct netpoll_info __rcu *npinfo; #endif #ifdef CONFIG_NET_XGRESS struct bpf_mprog_entry __rcu *tcx_ingress; #endif __cacheline_group_end(net_device_read_rx); char name[IFNAMSIZ]; struct netdev_name_node *name_node; struct dev_ifalias __rcu *ifalias; /* * I/O specific fields * FIXME: Merge these and struct ifmap into one */ unsigned long mem_end; unsigned long mem_start; unsigned long base_addr; /* * Some hardware also needs these fields (state,dev_list, * napi_list,unreg_list,close_list) but they are not * part of the usual set specified in Space.c. */ struct list_head dev_list; struct list_head napi_list; struct list_head unreg_list; struct list_head close_list; struct list_head ptype_all; struct { struct list_head upper; struct list_head lower; } adj_list; /* Read-mostly cache-line for fast-path access */ xdp_features_t xdp_features; const struct xdp_metadata_ops *xdp_metadata_ops; const struct xsk_tx_metadata_ops *xsk_tx_metadata_ops; unsigned short gflags; unsigned short needed_tailroom; netdev_features_t hw_features; netdev_features_t wanted_features; netdev_features_t vlan_features; netdev_features_t hw_enc_features; netdev_features_t mpls_features; unsigned int min_mtu; unsigned int max_mtu; unsigned short type; unsigned char min_header_len; unsigned char name_assign_type; int group; struct net_device_stats stats; /* not used by modern drivers */ struct net_device_core_stats __percpu *core_stats; /* Stats to monitor link on/off, flapping */ atomic_t carrier_up_count; atomic_t carrier_down_count; #ifdef CONFIG_WIRELESS_EXT const struct iw_handler_def *wireless_handlers; #endif const struct ethtool_ops *ethtool_ops; #ifdef CONFIG_NET_L3_MASTER_DEV const struct l3mdev_ops *l3mdev_ops; #endif #if IS_ENABLED(CONFIG_IPV6) const struct ndisc_ops *ndisc_ops; #endif #ifdef CONFIG_XFRM_OFFLOAD const struct xfrmdev_ops *xfrmdev_ops; #endif #if IS_ENABLED(CONFIG_TLS_DEVICE) const struct tlsdev_ops *tlsdev_ops; #endif unsigned int operstate; unsigned char link_mode; unsigned char if_port; unsigned char dma; /* Interface address info. */ unsigned char perm_addr[MAX_ADDR_LEN]; unsigned char addr_assign_type; unsigned char addr_len; unsigned char upper_level; unsigned char lower_level; unsigned short neigh_priv_len; unsigned short dev_id; unsigned short dev_port; int irq; u32 priv_len; spinlock_t addr_list_lock; struct netdev_hw_addr_list uc; struct netdev_hw_addr_list mc; struct netdev_hw_addr_list dev_addrs; #ifdef CONFIG_SYSFS struct kset *queues_kset; #endif #ifdef CONFIG_LOCKDEP struct list_head unlink_list; #endif unsigned int promiscuity; unsigned int allmulti; bool uc_promisc; #ifdef CONFIG_LOCKDEP unsigned char nested_level; #endif /* Protocol-specific pointers */ struct in_device __rcu *ip_ptr; /** @fib_nh_head: nexthops associated with this netdev */ struct hlist_head fib_nh_head; #if IS_ENABLED(CONFIG_VLAN_8021Q) struct vlan_info __rcu *vlan_info; #endif #if IS_ENABLED(CONFIG_NET_DSA) struct dsa_port *dsa_ptr; #endif #if IS_ENABLED(CONFIG_TIPC) struct tipc_bearer __rcu *tipc_ptr; #endif #if IS_ENABLED(CONFIG_ATALK) void *atalk_ptr; #endif #if IS_ENABLED(CONFIG_AX25) struct ax25_dev __rcu *ax25_ptr; #endif #if IS_ENABLED(CONFIG_CFG80211) struct wireless_dev *ieee80211_ptr; #endif #if IS_ENABLED(CONFIG_IEEE802154) || IS_ENABLED(CONFIG_6LOWPAN) struct wpan_dev *ieee802154_ptr; #endif #if IS_ENABLED(CONFIG_MPLS_ROUTING) struct mpls_dev __rcu *mpls_ptr; #endif #if IS_ENABLED(CONFIG_MCTP) struct mctp_dev __rcu *mctp_ptr; #endif /* * Cache lines mostly used on receive path (including eth_type_trans()) */ /* Interface address info used in eth_type_trans() */ const unsigned char *dev_addr; unsigned int num_rx_queues; #define GRO_LEGACY_MAX_SIZE 65536u /* TCP minimal MSS is 8 (TCP_MIN_GSO_SIZE), * and shinfo->gso_segs is a 16bit field. */ #define GRO_MAX_SIZE (8 * 65535u) unsigned int xdp_zc_max_segs; struct netdev_queue __rcu *ingress_queue; #ifdef CONFIG_NETFILTER_INGRESS struct nf_hook_entries __rcu *nf_hooks_ingress; #endif unsigned char broadcast[MAX_ADDR_LEN]; #ifdef CONFIG_RFS_ACCEL struct cpu_rmap *rx_cpu_rmap; #endif struct hlist_node index_hlist; /* * Cache lines mostly used on transmit path */ unsigned int num_tx_queues; struct Qdisc __rcu *qdisc; unsigned int tx_queue_len; spinlock_t tx_global_lock; struct xdp_dev_bulk_queue __percpu *xdp_bulkq; #ifdef CONFIG_NET_SCHED DECLARE_HASHTABLE (qdisc_hash, 4); #endif /* These may be needed for future network-power-down code. */ struct timer_list watchdog_timer; int watchdog_timeo; u32 proto_down_reason; struct list_head todo_list; #ifdef CONFIG_PCPU_DEV_REFCNT int __percpu *pcpu_refcnt; #else refcount_t dev_refcnt; #endif struct ref_tracker_dir refcnt_tracker; struct list_head link_watch_list; u8 reg_state; bool dismantle; enum { RTNL_LINK_INITIALIZED, RTNL_LINK_INITIALIZING, } rtnl_link_state:16; bool needs_free_netdev; void (*priv_destructor)(struct net_device *dev); /* mid-layer private */ void *ml_priv; enum netdev_ml_priv_type ml_priv_type; enum netdev_stat_type pcpu_stat_type:8; #if IS_ENABLED(CONFIG_GARP) struct garp_port __rcu *garp_port; #endif #if IS_ENABLED(CONFIG_MRP) struct mrp_port __rcu *mrp_port; #endif #if IS_ENABLED(CONFIG_NET_DROP_MONITOR) struct dm_hw_stat_delta __rcu *dm_private; #endif struct device dev; const struct attribute_group *sysfs_groups[4]; const struct attribute_group *sysfs_rx_queue_group; const struct rtnl_link_ops *rtnl_link_ops; const struct netdev_stat_ops *stat_ops; const struct netdev_queue_mgmt_ops *queue_mgmt_ops; /* for setting kernel sock attribute on TCP connection setup */ #define GSO_MAX_SEGS 65535u #define GSO_LEGACY_MAX_SIZE 65536u /* TCP minimal MSS is 8 (TCP_MIN_GSO_SIZE), * and shinfo->gso_segs is a 16bit field. */ #define GSO_MAX_SIZE (8 * GSO_MAX_SEGS) #define TSO_LEGACY_MAX_SIZE 65536 #define TSO_MAX_SIZE UINT_MAX unsigned int tso_max_size; #define TSO_MAX_SEGS U16_MAX u16 tso_max_segs; #ifdef CONFIG_DCB const struct dcbnl_rtnl_ops *dcbnl_ops; #endif u8 prio_tc_map[TC_BITMASK + 1]; #if IS_ENABLED(CONFIG_FCOE) unsigned int fcoe_ddp_xid; #endif #if IS_ENABLED(CONFIG_CGROUP_NET_PRIO) struct netprio_map __rcu *priomap; #endif struct phy_link_topology *link_topo; struct phy_device *phydev; struct sfp_bus *sfp_bus; struct lock_class_key *qdisc_tx_busylock; bool proto_down; bool threaded; /* priv_flags_slow, ungrouped to save space */ unsigned long see_all_hwtstamp_requests:1; unsigned long change_proto_down:1; unsigned long netns_local:1; unsigned long fcoe_mtu:1; struct list_head net_notifier_list; #if IS_ENABLED(CONFIG_MACSEC) /* MACsec management functions */ const struct macsec_ops *macsec_ops; #endif const struct udp_tunnel_nic_info *udp_tunnel_nic_info; struct udp_tunnel_nic *udp_tunnel_nic; /** @cfg: net_device queue-related configuration */ struct netdev_config *cfg; /** * @cfg_pending: same as @cfg but when device is being actively * reconfigured includes any changes to the configuration * requested by the user, but which may or may not be rejected. */ struct netdev_config *cfg_pending; struct ethtool_netdev_state *ethtool; /* protected by rtnl_lock */ struct bpf_xdp_entity xdp_state[__MAX_XDP_MODE]; u8 dev_addr_shadow[MAX_ADDR_LEN]; netdevice_tracker linkwatch_dev_tracker; netdevice_tracker watchdog_dev_tracker; netdevice_tracker dev_registered_tracker; struct rtnl_hw_stats64 *offload_xstats_l3; struct devlink_port *devlink_port; #if IS_ENABLED(CONFIG_DPLL) struct dpll_pin __rcu *dpll_pin; #endif #if IS_ENABLED(CONFIG_PAGE_POOL) /** @page_pools: page pools created for this netdevice */ struct hlist_head page_pools; #endif /** @irq_moder: dim parameters used if IS_ENABLED(CONFIG_DIMLIB). */ struct dim_irq_moder *irq_moder; u64 max_pacing_offload_horizon; struct napi_config *napi_config; unsigned long gro_flush_timeout; u32 napi_defer_hard_irqs; /** * @up: copy of @state's IFF_UP, but safe to read with just @lock. * May report false negatives while the device is being opened * or closed (@lock does not protect .ndo_open, or .ndo_close). */ bool up; /** * @lock: netdev-scope lock, protects a small selection of fields. * Should always be taken using netdev_lock() / netdev_unlock() helpers. * Drivers are free to use it for other protection. * * Protects: * @gro_flush_timeout, @napi_defer_hard_irqs, @napi_list, * @net_shaper_hierarchy, @reg_state, @threaded * * Partially protects (writers must hold both @lock and rtnl_lock): * @up * * Also protects some fields in struct napi_struct. * * Ordering: take after rtnl_lock. */ struct mutex lock; #if IS_ENABLED(CONFIG_NET_SHAPER) /** * @net_shaper_hierarchy: data tracking the current shaper status * see include/net/net_shapers.h */ struct net_shaper_hierarchy *net_shaper_hierarchy; #endif struct hlist_head neighbours[NEIGH_NR_TABLES]; struct hwtstamp_provider __rcu *hwprov; u8 priv[] ____cacheline_aligned __counted_by(priv_len); } ____cacheline_aligned; #define to_net_dev(d) container_of(d, struct net_device, dev) /* * Driver should use this to assign devlink port instance to a netdevice * before it registers the netdevice. Therefore devlink_port is static * during the netdev lifetime after it is registered. */ #define SET_NETDEV_DEVLINK_PORT(dev, port) \ ({ \ WARN_ON((dev)->reg_state != NETREG_UNINITIALIZED); \ ((dev)->devlink_port = (port)); \ }) static inline bool netif_elide_gro(const struct net_device *dev) { if (!(dev->features & NETIF_F_GRO) || dev->xdp_prog) return true; return false; } #define NETDEV_ALIGN 32 static inline int netdev_get_prio_tc_map(const struct net_device *dev, u32 prio) { return dev->prio_tc_map[prio & TC_BITMASK]; } static inline int netdev_set_prio_tc_map(struct net_device *dev, u8 prio, u8 tc) { if (tc >= dev->num_tc) return -EINVAL; dev->prio_tc_map[prio & TC_BITMASK] = tc & TC_BITMASK; return 0; } int netdev_txq_to_tc(struct net_device *dev, unsigned int txq); void netdev_reset_tc(struct net_device *dev); int netdev_set_tc_queue(struct net_device *dev, u8 tc, u16 count, u16 offset); int netdev_set_num_tc(struct net_device *dev, u8 num_tc); static inline int netdev_get_num_tc(struct net_device *dev) { return dev->num_tc; } static inline void net_prefetch(void *p) { prefetch(p); #if L1_CACHE_BYTES < 128 prefetch((u8 *)p + L1_CACHE_BYTES); #endif } static inline void net_prefetchw(void *p) { prefetchw(p); #if L1_CACHE_BYTES < 128 prefetchw((u8 *)p + L1_CACHE_BYTES); #endif } void netdev_unbind_sb_channel(struct net_device *dev, struct net_device *sb_dev); int netdev_bind_sb_channel_queue(struct net_device *dev, struct net_device *sb_dev, u8 tc, u16 count, u16 offset); int netdev_set_sb_channel(struct net_device *dev, u16 channel); static inline int netdev_get_sb_channel(struct net_device *dev) { return max_t(int, -dev->num_tc, 0); } static inline struct netdev_queue *netdev_get_tx_queue(const struct net_device *dev, unsigned int index) { DEBUG_NET_WARN_ON_ONCE(index >= dev->num_tx_queues); return &dev->_tx[index]; } static inline struct netdev_queue *skb_get_tx_queue(const struct net_device *dev, const struct sk_buff *skb) { return netdev_get_tx_queue(dev, skb_get_queue_mapping(skb)); } static inline void netdev_for_each_tx_queue(struct net_device *dev, void (*f)(struct net_device *, struct netdev_queue *, void *), void *arg) { unsigned int i; for (i = 0; i < dev->num_tx_queues; i++) f(dev, &dev->_tx[i], arg); } #define netdev_lockdep_set_classes(dev) \ { \ static struct lock_class_key qdisc_tx_busylock_key; \ static struct lock_class_key qdisc_xmit_lock_key; \ static struct lock_class_key dev_addr_list_lock_key; \ unsigned int i; \ \ (dev)->qdisc_tx_busylock = &qdisc_tx_busylock_key; \ lockdep_set_class(&(dev)->addr_list_lock, \ &dev_addr_list_lock_key); \ for (i = 0; i < (dev)->num_tx_queues; i++) \ lockdep_set_class(&(dev)->_tx[i]._xmit_lock, \ &qdisc_xmit_lock_key); \ } u16 netdev_pick_tx(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev); struct netdev_queue *netdev_core_pick_tx(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev); /* returns the headroom that the master device needs to take in account * when forwarding to this dev */ static inline unsigned netdev_get_fwd_headroom(struct net_device *dev) { return dev->priv_flags & IFF_PHONY_HEADROOM ? 0 : dev->needed_headroom; } static inline void netdev_set_rx_headroom(struct net_device *dev, int new_hr) { if (dev->netdev_ops->ndo_set_rx_headroom) dev->netdev_ops->ndo_set_rx_headroom(dev, new_hr); } /* set the device rx headroom to the dev's default */ static inline void netdev_reset_rx_headroom(struct net_device *dev) { netdev_set_rx_headroom(dev, -1); } static inline void *netdev_get_ml_priv(struct net_device *dev, enum netdev_ml_priv_type type) { if (dev->ml_priv_type != type) return NULL; return dev->ml_priv; } static inline void netdev_set_ml_priv(struct net_device *dev, void *ml_priv, enum netdev_ml_priv_type type) { WARN(dev->ml_priv_type && dev->ml_priv_type != type, "Overwriting already set ml_priv_type (%u) with different ml_priv_type (%u)!\n", dev->ml_priv_type, type); WARN(!dev->ml_priv_type && dev->ml_priv, "Overwriting already set ml_priv and ml_priv_type is ML_PRIV_NONE!\n"); dev->ml_priv = ml_priv; dev->ml_priv_type = type; } /* * Net namespace inlines */ static inline struct net *dev_net(const struct net_device *dev) { return read_pnet(&dev->nd_net); } static inline struct net *dev_net_rcu(const struct net_device *dev) { return read_pnet_rcu(&dev->nd_net); } static inline void dev_net_set(struct net_device *dev, struct net *net) { write_pnet(&dev->nd_net, net); } /** * netdev_priv - access network device private data * @dev: network device * * Get network device private data */ static inline void *netdev_priv(const struct net_device *dev) { return (void *)dev->priv; } /* Set the sysfs physical device reference for the network logical device * if set prior to registration will cause a symlink during initialization. */ #define SET_NETDEV_DEV(net, pdev) ((net)->dev.parent = (pdev)) /* Set the sysfs device type for the network logical device to allow * fine-grained identification of different network device types. For * example Ethernet, Wireless LAN, Bluetooth, WiMAX etc. */ #define SET_NETDEV_DEVTYPE(net, devtype) ((net)->dev.type = (devtype)) void netif_queue_set_napi(struct net_device *dev, unsigned int queue_index, enum netdev_queue_type type, struct napi_struct *napi); static inline void netdev_lock(struct net_device *dev) { mutex_lock(&dev->lock); } static inline void netdev_unlock(struct net_device *dev) { mutex_unlock(&dev->lock); } static inline void netdev_assert_locked(struct net_device *dev) { lockdep_assert_held(&dev->lock); } static inline void netdev_assert_locked_or_invisible(struct net_device *dev) { if (dev->reg_state == NETREG_REGISTERED || dev->reg_state == NETREG_UNREGISTERING) netdev_assert_locked(dev); } static inline void netif_napi_set_irq_locked(struct napi_struct *napi, int irq) { napi->irq = irq; } static inline void netif_napi_set_irq(struct napi_struct *napi, int irq) { netdev_lock(napi->dev); netif_napi_set_irq_locked(napi, irq); netdev_unlock(napi->dev); } /* Default NAPI poll() weight * Device drivers are strongly advised to not use bigger value */ #define NAPI_POLL_WEIGHT 64 void netif_napi_add_weight_locked(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int), int weight); static inline void netif_napi_add_weight(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int), int weight) { netdev_lock(dev); netif_napi_add_weight_locked(dev, napi, poll, weight); netdev_unlock(dev); } /** * netif_napi_add() - initialize a NAPI context * @dev: network device * @napi: NAPI context * @poll: polling function * * netif_napi_add() must be used to initialize a NAPI context prior to calling * *any* of the other NAPI-related functions. */ static inline void netif_napi_add(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int)) { netif_napi_add_weight(dev, napi, poll, NAPI_POLL_WEIGHT); } static inline void netif_napi_add_locked(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int)) { netif_napi_add_weight_locked(dev, napi, poll, NAPI_POLL_WEIGHT); } static inline void netif_napi_add_tx_weight(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int), int weight) { set_bit(NAPI_STATE_NO_BUSY_POLL, &napi->state); netif_napi_add_weight(dev, napi, poll, weight); } static inline void netif_napi_add_config_locked(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int), int index) { napi->index = index; napi->config = &dev->napi_config[index]; netif_napi_add_weight_locked(dev, napi, poll, NAPI_POLL_WEIGHT); } /** * netif_napi_add_config - initialize a NAPI context with persistent config * @dev: network device * @napi: NAPI context * @poll: polling function * @index: the NAPI index */ static inline void netif_napi_add_config(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int), int index) { netdev_lock(dev); netif_napi_add_config_locked(dev, napi, poll, index); netdev_unlock(dev); } /** * netif_napi_add_tx() - initialize a NAPI context to be used for Tx only * @dev: network device * @napi: NAPI context * @poll: polling function * * This variant of netif_napi_add() should be used from drivers using NAPI * to exclusively poll a TX queue. * This will avoid we add it into napi_hash[], thus polluting this hash table. */ static inline void netif_napi_add_tx(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int)) { netif_napi_add_tx_weight(dev, napi, poll, NAPI_POLL_WEIGHT); } void __netif_napi_del_locked(struct napi_struct *napi); /** * __netif_napi_del - remove a NAPI context * @napi: NAPI context * * Warning: caller must observe RCU grace period before freeing memory * containing @napi. Drivers might want to call this helper to combine * all the needed RCU grace periods into a single one. */ static inline void __netif_napi_del(struct napi_struct *napi) { netdev_lock(napi->dev); __netif_napi_del_locked(napi); netdev_unlock(napi->dev); } static inline void netif_napi_del_locked(struct napi_struct *napi) { __netif_napi_del_locked(napi); synchronize_net(); } /** * netif_napi_del - remove a NAPI context * @napi: NAPI context * * netif_napi_del() removes a NAPI context from the network device NAPI list */ static inline void netif_napi_del(struct napi_struct *napi) { __netif_napi_del(napi); synchronize_net(); } struct packet_type { __be16 type; /* This is really htons(ether_type). */ bool ignore_outgoing; struct net_device *dev; /* NULL is wildcarded here */ netdevice_tracker dev_tracker; int (*func) (struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *); void (*list_func) (struct list_head *, struct packet_type *, struct net_device *); bool (*id_match)(struct packet_type *ptype, struct sock *sk); struct net *af_packet_net; void *af_packet_priv; struct list_head list; }; struct offload_callbacks { struct sk_buff *(*gso_segment)(struct sk_buff *skb, netdev_features_t features); struct sk_buff *(*gro_receive)(struct list_head *head, struct sk_buff *skb); int (*gro_complete)(struct sk_buff *skb, int nhoff); }; struct packet_offload { __be16 type; /* This is really htons(ether_type). */ u16 priority; struct offload_callbacks callbacks; struct list_head list; }; /* often modified stats are per-CPU, other are shared (netdev->stats) */ struct pcpu_sw_netstats { u64_stats_t rx_packets; u64_stats_t rx_bytes; u64_stats_t tx_packets; u64_stats_t tx_bytes; struct u64_stats_sync syncp; } __aligned(4 * sizeof(u64)); struct pcpu_dstats { u64_stats_t rx_packets; u64_stats_t rx_bytes; u64_stats_t tx_packets; u64_stats_t tx_bytes; u64_stats_t rx_drops; u64_stats_t tx_drops; struct u64_stats_sync syncp; } __aligned(8 * sizeof(u64)); struct pcpu_lstats { u64_stats_t packets; u64_stats_t bytes; struct u64_stats_sync syncp; } __aligned(2 * sizeof(u64)); void dev_lstats_read(struct net_device *dev, u64 *packets, u64 *bytes); static inline void dev_sw_netstats_rx_add(struct net_device *dev, unsigned int len) { struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats); u64_stats_update_begin(&tstats->syncp); u64_stats_add(&tstats->rx_bytes, len); u64_stats_inc(&tstats->rx_packets); u64_stats_update_end(&tstats->syncp); } static inline void dev_sw_netstats_tx_add(struct net_device *dev, unsigned int packets, unsigned int len) { struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats); u64_stats_update_begin(&tstats->syncp); u64_stats_add(&tstats->tx_bytes, len); u64_stats_add(&tstats->tx_packets, packets); u64_stats_update_end(&tstats->syncp); } static inline void dev_lstats_add(struct net_device *dev, unsigned int len) { struct pcpu_lstats *lstats = this_cpu_ptr(dev->lstats); u64_stats_update_begin(&lstats->syncp); u64_stats_add(&lstats->bytes, len); u64_stats_inc(&lstats->packets); u64_stats_update_end(&lstats->syncp); } static inline void dev_dstats_rx_add(struct net_device *dev, unsigned int len) { struct pcpu_dstats *dstats = this_cpu_ptr(dev->dstats); u64_stats_update_begin(&dstats->syncp); u64_stats_inc(&dstats->rx_packets); u64_stats_add(&dstats->rx_bytes, len); u64_stats_update_end(&dstats->syncp); } static inline void dev_dstats_rx_dropped(struct net_device *dev) { struct pcpu_dstats *dstats = this_cpu_ptr(dev->dstats); u64_stats_update_begin(&dstats->syncp); u64_stats_inc(&dstats->rx_drops); u64_stats_update_end(&dstats->syncp); } static inline void dev_dstats_tx_add(struct net_device *dev, unsigned int len) { struct pcpu_dstats *dstats = this_cpu_ptr(dev->dstats); u64_stats_update_begin(&dstats->syncp); u64_stats_inc(&dstats->tx_packets); u64_stats_add(&dstats->tx_bytes, len); u64_stats_update_end(&dstats->syncp); } static inline void dev_dstats_tx_dropped(struct net_device *dev) { struct pcpu_dstats *dstats = this_cpu_ptr(dev->dstats); u64_stats_update_begin(&dstats->syncp); u64_stats_inc(&dstats->tx_drops); u64_stats_update_end(&dstats->syncp); } #define __netdev_alloc_pcpu_stats(type, gfp) \ ({ \ typeof(type) __percpu *pcpu_stats = alloc_percpu_gfp(type, gfp);\ if (pcpu_stats) { \ int __cpu; \ for_each_possible_cpu(__cpu) { \ typeof(type) *stat; \ stat = per_cpu_ptr(pcpu_stats, __cpu); \ u64_stats_init(&stat->syncp); \ } \ } \ pcpu_stats; \ }) #define netdev_alloc_pcpu_stats(type) \ __netdev_alloc_pcpu_stats(type, GFP_KERNEL) #define devm_netdev_alloc_pcpu_stats(dev, type) \ ({ \ typeof(type) __percpu *pcpu_stats = devm_alloc_percpu(dev, type);\ if (pcpu_stats) { \ int __cpu; \ for_each_possible_cpu(__cpu) { \ typeof(type) *stat; \ stat = per_cpu_ptr(pcpu_stats, __cpu); \ u64_stats_init(&stat->syncp); \ } \ } \ pcpu_stats; \ }) enum netdev_lag_tx_type { NETDEV_LAG_TX_TYPE_UNKNOWN, NETDEV_LAG_TX_TYPE_RANDOM, NETDEV_LAG_TX_TYPE_BROADCAST, NETDEV_LAG_TX_TYPE_ROUNDROBIN, NETDEV_LAG_TX_TYPE_ACTIVEBACKUP, NETDEV_LAG_TX_TYPE_HASH, }; enum netdev_lag_hash { NETDEV_LAG_HASH_NONE, NETDEV_LAG_HASH_L2, NETDEV_LAG_HASH_L34, NETDEV_LAG_HASH_L23, NETDEV_LAG_HASH_E23, NETDEV_LAG_HASH_E34, NETDEV_LAG_HASH_VLAN_SRCMAC, NETDEV_LAG_HASH_UNKNOWN, }; struct netdev_lag_upper_info { enum netdev_lag_tx_type tx_type; enum netdev_lag_hash hash_type; }; struct netdev_lag_lower_state_info { u8 link_up : 1, tx_enabled : 1; }; #include <linux/notifier.h> /* netdevice notifier chain. Please remember to update netdev_cmd_to_name() * and the rtnetlink notification exclusion list in rtnetlink_event() when * adding new types. */ enum netdev_cmd { NETDEV_UP = 1, /* For now you can't veto a device up/down */ NETDEV_DOWN, NETDEV_REBOOT, /* Tell a protocol stack a network interface detected a hardware crash and restarted - we can use this eg to kick tcp sessions once done */ NETDEV_CHANGE, /* Notify device state change */ NETDEV_REGISTER, NETDEV_UNREGISTER, NETDEV_CHANGEMTU, /* notify after mtu change happened */ NETDEV_CHANGEADDR, /* notify after the address change */ NETDEV_PRE_CHANGEADDR, /* notify before the address change */ NETDEV_GOING_DOWN, NETDEV_CHANGENAME, NETDEV_FEAT_CHANGE, NETDEV_BONDING_FAILOVER, NETDEV_PRE_UP, NETDEV_PRE_TYPE_CHANGE, NETDEV_POST_TYPE_CHANGE, NETDEV_POST_INIT, NETDEV_PRE_UNINIT, NETDEV_RELEASE, NETDEV_NOTIFY_PEERS, NETDEV_JOIN, NETDEV_CHANGEUPPER, NETDEV_RESEND_IGMP, NETDEV_PRECHANGEMTU, /* notify before mtu change happened */ NETDEV_CHANGEINFODATA, NETDEV_BONDING_INFO, NETDEV_PRECHANGEUPPER, NETDEV_CHANGELOWERSTATE, NETDEV_UDP_TUNNEL_PUSH_INFO, NETDEV_UDP_TUNNEL_DROP_INFO, NETDEV_CHANGE_TX_QUEUE_LEN, NETDEV_CVLAN_FILTER_PUSH_INFO, NETDEV_CVLAN_FILTER_DROP_INFO, NETDEV_SVLAN_FILTER_PUSH_INFO, NETDEV_SVLAN_FILTER_DROP_INFO, NETDEV_OFFLOAD_XSTATS_ENABLE, NETDEV_OFFLOAD_XSTATS_DISABLE, NETDEV_OFFLOAD_XSTATS_REPORT_USED, NETDEV_OFFLOAD_XSTATS_REPORT_DELTA, NETDEV_XDP_FEAT_CHANGE, }; const char *netdev_cmd_to_name(enum netdev_cmd cmd); int register_netdevice_notifier(struct notifier_block *nb); int unregister_netdevice_notifier(struct notifier_block *nb); int register_netdevice_notifier_net(struct net *net, struct notifier_block *nb); int unregister_netdevice_notifier_net(struct net *net, struct notifier_block *nb); int register_netdevice_notifier_dev_net(struct net_device *dev, struct notifier_block *nb, struct netdev_net_notifier *nn); int unregister_netdevice_notifier_dev_net(struct net_device *dev, struct notifier_block *nb, struct netdev_net_notifier *nn); struct netdev_notifier_info { struct net_device *dev; struct netlink_ext_ack *extack; }; struct netdev_notifier_info_ext { struct netdev_notifier_info info; /* must be first */ union { u32 mtu; } ext; }; struct netdev_notifier_change_info { struct netdev_notifier_info info; /* must be first */ unsigned int flags_changed; }; struct netdev_notifier_changeupper_info { struct netdev_notifier_info info; /* must be first */ struct net_device *upper_dev; /* new upper dev */ bool master; /* is upper dev master */ bool linking; /* is the notification for link or unlink */ void *upper_info; /* upper dev info */ }; struct netdev_notifier_changelowerstate_info { struct netdev_notifier_info info; /* must be first */ void *lower_state_info; /* is lower dev state */ }; struct netdev_notifier_pre_changeaddr_info { struct netdev_notifier_info info; /* must be first */ const unsigned char *dev_addr; }; enum netdev_offload_xstats_type { NETDEV_OFFLOAD_XSTATS_TYPE_L3 = 1, }; struct netdev_notifier_offload_xstats_info { struct netdev_notifier_info info; /* must be first */ enum netdev_offload_xstats_type type; union { /* NETDEV_OFFLOAD_XSTATS_REPORT_DELTA */ struct netdev_notifier_offload_xstats_rd *report_delta; /* NETDEV_OFFLOAD_XSTATS_REPORT_USED */ struct netdev_notifier_offload_xstats_ru *report_used; }; }; int netdev_offload_xstats_enable(struct net_device *dev, enum netdev_offload_xstats_type type, struct netlink_ext_ack *extack); int netdev_offload_xstats_disable(struct net_device *dev, enum netdev_offload_xstats_type type); bool netdev_offload_xstats_enabled(const struct net_device *dev, enum netdev_offload_xstats_type type); int netdev_offload_xstats_get(struct net_device *dev, enum netdev_offload_xstats_type type, struct rtnl_hw_stats64 *stats, bool *used, struct netlink_ext_ack *extack); void netdev_offload_xstats_report_delta(struct netdev_notifier_offload_xstats_rd *rd, const struct rtnl_hw_stats64 *stats); void netdev_offload_xstats_report_used(struct netdev_notifier_offload_xstats_ru *ru); void netdev_offload_xstats_push_delta(struct net_device *dev, enum netdev_offload_xstats_type type, const struct rtnl_hw_stats64 *stats); static inline void netdev_notifier_info_init(struct netdev_notifier_info *info, struct net_device *dev) { info->dev = dev; info->extack = NULL; } static inline struct net_device * netdev_notifier_info_to_dev(const struct netdev_notifier_info *info) { return info->dev; } static inline struct netlink_ext_ack * netdev_notifier_info_to_extack(const struct netdev_notifier_info *info) { return info->extack; } int call_netdevice_notifiers(unsigned long val, struct net_device *dev); int call_netdevice_notifiers_info(unsigned long val, struct netdev_notifier_info *info); #define for_each_netdev(net, d) \ list_for_each_entry(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_reverse(net, d) \ list_for_each_entry_reverse(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_rcu(net, d) \ list_for_each_entry_rcu(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_safe(net, d, n) \ list_for_each_entry_safe(d, n, &(net)->dev_base_head, dev_list) #define for_each_netdev_continue(net, d) \ list_for_each_entry_continue(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_continue_reverse(net, d) \ list_for_each_entry_continue_reverse(d, &(net)->dev_base_head, \ dev_list) #define for_each_netdev_continue_rcu(net, d) \ list_for_each_entry_continue_rcu(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_in_bond_rcu(bond, slave) \ for_each_netdev_rcu(&init_net, slave) \ if (netdev_master_upper_dev_get_rcu(slave) == (bond)) #define net_device_entry(lh) list_entry(lh, struct net_device, dev_list) #define for_each_netdev_dump(net, d, ifindex) \ for (; (d = xa_find(&(net)->dev_by_index, &ifindex, \ ULONG_MAX, XA_PRESENT)); ifindex++) static inline struct net_device *next_net_device(struct net_device *dev) { struct list_head *lh; struct net *net; net = dev_net(dev); lh = dev->dev_list.next; return lh == &net->dev_base_head ? NULL : net_device_entry(lh); } static inline struct net_device *next_net_device_rcu(struct net_device *dev) { struct list_head *lh; struct net *net; net = dev_net(dev); lh = rcu_dereference(list_next_rcu(&dev->dev_list)); return lh == &net->dev_base_head ? NULL : net_device_entry(lh); } static inline struct net_device *first_net_device(struct net *net) { return list_empty(&net->dev_base_head) ? NULL : net_device_entry(net->dev_base_head.next); } static inline struct net_device *first_net_device_rcu(struct net *net) { struct list_head *lh = rcu_dereference(list_next_rcu(&net->dev_base_head)); return lh == &net->dev_base_head ? NULL : net_device_entry(lh); } int netdev_boot_setup_check(struct net_device *dev); struct net_device *dev_getbyhwaddr(struct net *net, unsigned short type, const char *hwaddr); struct net_device *dev_getbyhwaddr_rcu(struct net *net, unsigned short type, const char *hwaddr); struct net_device *dev_getfirstbyhwtype(struct net *net, unsigned short type); void dev_add_pack(struct packet_type *pt); void dev_remove_pack(struct packet_type *pt); void __dev_remove_pack(struct packet_type *pt); void dev_add_offload(struct packet_offload *po); void dev_remove_offload(struct packet_offload *po); int dev_get_iflink(const struct net_device *dev); int dev_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb); int dev_fill_forward_path(const struct net_device *dev, const u8 *daddr, struct net_device_path_stack *stack); struct net_device *__dev_get_by_flags(struct net *net, unsigned short flags, unsigned short mask); struct net_device *dev_get_by_name(struct net *net, const char *name); struct net_device *dev_get_by_name_rcu(struct net *net, const char *name); struct net_device *__dev_get_by_name(struct net *net, const char *name); bool netdev_name_in_use(struct net *net, const char *name); int dev_alloc_name(struct net_device *dev, const char *name); int dev_open(struct net_device *dev, struct netlink_ext_ack *extack); void dev_close(struct net_device *dev); void dev_close_many(struct list_head *head, bool unlink); void dev_disable_lro(struct net_device *dev); int dev_loopback_xmit(struct net *net, struct sock *sk, struct sk_buff *newskb); u16 dev_pick_tx_zero(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev); int __dev_queue_xmit(struct sk_buff *skb, struct net_device *sb_dev); int __dev_direct_xmit(struct sk_buff *skb, u16 queue_id); static inline int dev_queue_xmit(struct sk_buff *skb) { return __dev_queue_xmit(skb, NULL); } static inline int dev_queue_xmit_accel(struct sk_buff *skb, struct net_device *sb_dev) { return __dev_queue_xmit(skb, sb_dev); } static inline int dev_direct_xmit(struct sk_buff *skb, u16 queue_id) { int ret; ret = __dev_direct_xmit(skb, queue_id); if (!dev_xmit_complete(ret)) kfree_skb(skb); return ret; } int register_netdevice(struct net_device *dev); void unregister_netdevice_queue(struct net_device *dev, struct list_head *head); void unregister_netdevice_many(struct list_head *head); static inline void unregister_netdevice(struct net_device *dev) { unregister_netdevice_queue(dev, NULL); } int netdev_refcnt_read(const struct net_device *dev); void free_netdev(struct net_device *dev); struct net_device *netdev_get_xmit_slave(struct net_device *dev, struct sk_buff *skb, bool all_slaves); struct net_device *netdev_sk_get_lowest_dev(struct net_device *dev, struct sock *sk); struct net_device *dev_get_by_index(struct net *net, int ifindex); struct net_device *__dev_get_by_index(struct net *net, int ifindex); struct net_device *netdev_get_by_index(struct net *net, int ifindex, netdevice_tracker *tracker, gfp_t gfp); struct net_device *netdev_get_by_name(struct net *net, const char *name, netdevice_tracker *tracker, gfp_t gfp); struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex); void netdev_copy_name(struct net_device *dev, char *name); static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev, unsigned short type, const void *daddr, const void *saddr, unsigned int len) { if (!dev->header_ops || !dev->header_ops->create) return 0; return dev->header_ops->create(skb, dev, type, daddr, saddr, len); } static inline int dev_parse_header(const struct sk_buff *skb, unsigned char *haddr) { const struct net_device *dev = skb->dev; if (!dev->header_ops || !dev->header_ops->parse) return 0; return dev->header_ops->parse(skb, haddr); } static inline __be16 dev_parse_header_protocol(const struct sk_buff *skb) { const struct net_device *dev = skb->dev; if (!dev->header_ops || !dev->header_ops->parse_protocol) return 0; return dev->header_ops->parse_protocol(skb); } /* ll_header must have at least hard_header_len allocated */ static inline bool dev_validate_header(const struct net_device *dev, char *ll_header, int len) { if (likely(len >= dev->hard_header_len)) return true; if (len < dev->min_header_len) return false; if (capable(CAP_SYS_RAWIO)) { memset(ll_header + len, 0, dev->hard_header_len - len); return true; } if (dev->header_ops && dev->header_ops->validate) return dev->header_ops->validate(ll_header, len); return false; } static inline bool dev_has_header(const struct net_device *dev) { return dev->header_ops && dev->header_ops->create; } /* * Incoming packets are placed on per-CPU queues */ struct softnet_data { struct list_head poll_list; struct sk_buff_head process_queue; local_lock_t process_queue_bh_lock; /* stats */ unsigned int processed; unsigned int time_squeeze; #ifdef CONFIG_RPS struct softnet_data *rps_ipi_list; #endif unsigned int received_rps; bool in_net_rx_action; bool in_napi_threaded_poll; #ifdef CONFIG_NET_FLOW_LIMIT struct sd_flow_limit __rcu *flow_limit; #endif struct Qdisc *output_queue; struct Qdisc **output_queue_tailp; struct sk_buff *completion_queue; #ifdef CONFIG_XFRM_OFFLOAD struct sk_buff_head xfrm_backlog; #endif /* written and read only by owning cpu: */ struct netdev_xmit xmit; #ifdef CONFIG_RPS /* input_queue_head should be written by cpu owning this struct, * and only read by other cpus. Worth using a cache line. */ unsigned int input_queue_head ____cacheline_aligned_in_smp; /* Elements below can be accessed between CPUs for RPS/RFS */ call_single_data_t csd ____cacheline_aligned_in_smp; struct softnet_data *rps_ipi_next; unsigned int cpu; unsigned int input_queue_tail; #endif struct sk_buff_head input_pkt_queue; struct napi_struct backlog; atomic_t dropped ____cacheline_aligned_in_smp; /* Another possibly contended cache line */ spinlock_t defer_lock ____cacheline_aligned_in_smp; int defer_count; int defer_ipi_scheduled; struct sk_buff *defer_list; call_single_data_t defer_csd; }; DECLARE_PER_CPU_ALIGNED(struct softnet_data, softnet_data); DECLARE_PER_CPU(struct page_pool *, system_page_pool); #ifndef CONFIG_PREEMPT_RT static inline int dev_recursion_level(void) { return this_cpu_read(softnet_data.xmit.recursion); } #else static inline int dev_recursion_level(void) { return current->net_xmit.recursion; } #endif void __netif_schedule(struct Qdisc *q); void netif_schedule_queue(struct netdev_queue *txq); static inline void netif_tx_schedule_all(struct net_device *dev) { unsigned int i; for (i = 0; i < dev->num_tx_queues; i++) netif_schedule_queue(netdev_get_tx_queue(dev, i)); } static __always_inline void netif_tx_start_queue(struct netdev_queue *dev_queue) { clear_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state); } /** * netif_start_queue - allow transmit * @dev: network device * * Allow upper layers to call the device hard_start_xmit routine. */ static inline void netif_start_queue(struct net_device *dev) { netif_tx_start_queue(netdev_get_tx_queue(dev, 0)); } static inline void netif_tx_start_all_queues(struct net_device *dev) { unsigned int i; for (i = 0; i < dev->num_tx_queues; i++) { struct netdev_queue *txq = netdev_get_tx_queue(dev, i); netif_tx_start_queue(txq); } } void netif_tx_wake_queue(struct netdev_queue *dev_queue); /** * netif_wake_queue - restart transmit * @dev: network device * * Allow upper layers to call the device hard_start_xmit routine. * Used for flow control when transmit resources are available. */ static inline void netif_wake_queue(struct net_device *dev) { netif_tx_wake_queue(netdev_get_tx_queue(dev, 0)); } static inline void netif_tx_wake_all_queues(struct net_device *dev) { unsigned int i; for (i = 0; i < dev->num_tx_queues; i++) { struct netdev_queue *txq = netdev_get_tx_queue(dev, i); netif_tx_wake_queue(txq); } } static __always_inline void netif_tx_stop_queue(struct netdev_queue *dev_queue) { /* Paired with READ_ONCE() from dev_watchdog() */ WRITE_ONCE(dev_queue->trans_start, jiffies); /* This barrier is paired with smp_mb() from dev_watchdog() */ smp_mb__before_atomic(); /* Must be an atomic op see netif_txq_try_stop() */ set_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state); } /** * netif_stop_queue - stop transmitted packets * @dev: network device * * Stop upper layers calling the device hard_start_xmit routine. * Used for flow control when transmit resources are unavailable. */ static inline void netif_stop_queue(struct net_device *dev) { netif_tx_stop_queue(netdev_get_tx_queue(dev, 0)); } void netif_tx_stop_all_queues(struct net_device *dev); static inline bool netif_tx_queue_stopped(const struct netdev_queue *dev_queue) { return test_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state); } /** * netif_queue_stopped - test if transmit queue is flowblocked * @dev: network device * * Test if transmit queue on device is currently unable to send. */ static inline bool netif_queue_stopped(const struct net_device *dev) { return netif_tx_queue_stopped(netdev_get_tx_queue(dev, 0)); } static inline bool netif_xmit_stopped(const struct netdev_queue *dev_queue) { return dev_queue->state & QUEUE_STATE_ANY_XOFF; } static inline bool netif_xmit_frozen_or_stopped(const struct netdev_queue *dev_queue) { return dev_queue->state & QUEUE_STATE_ANY_XOFF_OR_FROZEN; } static inline bool netif_xmit_frozen_or_drv_stopped(const struct netdev_queue *dev_queue) { return dev_queue->state & QUEUE_STATE_DRV_XOFF_OR_FROZEN; } /** * netdev_queue_set_dql_min_limit - set dql minimum limit * @dev_queue: pointer to transmit queue * @min_limit: dql minimum limit * * Forces xmit_more() to return true until the minimum threshold * defined by @min_limit is reached (or until the tx queue is * empty). Warning: to be use with care, misuse will impact the * latency. */ static inline void netdev_queue_set_dql_min_limit(struct netdev_queue *dev_queue, unsigned int min_limit) { #ifdef CONFIG_BQL dev_queue->dql.min_limit = min_limit; #endif } static inline int netdev_queue_dql_avail(const struct netdev_queue *txq) { #ifdef CONFIG_BQL /* Non-BQL migrated drivers will return 0, too. */ return dql_avail(&txq->dql); #else return 0; #endif } /** * netdev_txq_bql_enqueue_prefetchw - prefetch bql data for write * @dev_queue: pointer to transmit queue * * BQL enabled drivers might use this helper in their ndo_start_xmit(), * to give appropriate hint to the CPU. */ static inline void netdev_txq_bql_enqueue_prefetchw(struct netdev_queue *dev_queue) { #ifdef CONFIG_BQL prefetchw(&dev_queue->dql.num_queued); #endif } /** * netdev_txq_bql_complete_prefetchw - prefetch bql data for write * @dev_queue: pointer to transmit queue * * BQL enabled drivers might use this helper in their TX completion path, * to give appropriate hint to the CPU. */ static inline void netdev_txq_bql_complete_prefetchw(struct netdev_queue *dev_queue) { #ifdef CONFIG_BQL prefetchw(&dev_queue->dql.limit); #endif } /** * netdev_tx_sent_queue - report the number of bytes queued to a given tx queue * @dev_queue: network device queue * @bytes: number of bytes queued to the device queue * * Report the number of bytes queued for sending/completion to the network * device hardware queue. @bytes should be a good approximation and should * exactly match netdev_completed_queue() @bytes. * This is typically called once per packet, from ndo_start_xmit(). */ static inline void netdev_tx_sent_queue(struct netdev_queue *dev_queue, unsigned int bytes) { #ifdef CONFIG_BQL dql_queued(&dev_queue->dql, bytes); if (likely(dql_avail(&dev_queue->dql) >= 0)) return; /* Paired with READ_ONCE() from dev_watchdog() */ WRITE_ONCE(dev_queue->trans_start, jiffies); /* This barrier is paired with smp_mb() from dev_watchdog() */ smp_mb__before_atomic(); set_bit(__QUEUE_STATE_STACK_XOFF, &dev_queue->state); /* * The XOFF flag must be set before checking the dql_avail below, * because in netdev_tx_completed_queue we update the dql_completed * before checking the XOFF flag. */ smp_mb__after_atomic(); /* check again in case another CPU has just made room avail */ if (unlikely(dql_avail(&dev_queue->dql) >= 0)) clear_bit(__QUEUE_STATE_STACK_XOFF, &dev_queue->state); #endif } /* Variant of netdev_tx_sent_queue() for drivers that are aware * that they should not test BQL status themselves. * We do want to change __QUEUE_STATE_STACK_XOFF only for the last * skb of a batch. * Returns true if the doorbell must be used to kick the NIC. */ static inline bool __netdev_tx_sent_queue(struct netdev_queue *dev_queue, unsigned int bytes, bool xmit_more) { if (xmit_more) { #ifdef CONFIG_BQL dql_queued(&dev_queue->dql, bytes); #endif return netif_tx_queue_stopped(dev_queue); } netdev_tx_sent_queue(dev_queue, bytes); return true; } /** * netdev_sent_queue - report the number of bytes queued to hardware * @dev: network device * @bytes: number of bytes queued to the hardware device queue * * Report the number of bytes queued for sending/completion to the network * device hardware queue#0. @bytes should be a good approximation and should * exactly match netdev_completed_queue() @bytes. * This is typically called once per packet, from ndo_start_xmit(). */ static inline void netdev_sent_queue(struct net_device *dev, unsigned int bytes) { netdev_tx_sent_queue(netdev_get_tx_queue(dev, 0), bytes); } static inline bool __netdev_sent_queue(struct net_device *dev, unsigned int bytes, bool xmit_more) { return __netdev_tx_sent_queue(netdev_get_tx_queue(dev, 0), bytes, xmit_more); } /** * netdev_tx_completed_queue - report number of packets/bytes at TX completion. * @dev_queue: network device queue * @pkts: number of packets (currently ignored) * @bytes: number of bytes dequeued from the device queue * * Must be called at most once per TX completion round (and not per * individual packet), so that BQL can adjust its limits appropriately. */ static inline void netdev_tx_completed_queue(struct netdev_queue *dev_queue, unsigned int pkts, unsigned int bytes) { #ifdef CONFIG_BQL if (unlikely(!bytes)) return; dql_completed(&dev_queue->dql, bytes); /* * Without the memory barrier there is a small possibility that * netdev_tx_sent_queue will miss the update and cause the queue to * be stopped forever */ smp_mb(); /* NOTE: netdev_txq_completed_mb() assumes this exists */ if (unlikely(dql_avail(&dev_queue->dql) < 0)) return; if (test_and_clear_bit(__QUEUE_STATE_STACK_XOFF, &dev_queue->state)) netif_schedule_queue(dev_queue); #endif } /** * netdev_completed_queue - report bytes and packets completed by device * @dev: network device * @pkts: actual number of packets sent over the medium * @bytes: actual number of bytes sent over the medium * * Report the number of bytes and packets transmitted by the network device * hardware queue over the physical medium, @bytes must exactly match the * @bytes amount passed to netdev_sent_queue() */ static inline void netdev_completed_queue(struct net_device *dev, unsigned int pkts, unsigned int bytes) { netdev_tx_completed_queue(netdev_get_tx_queue(dev, 0), pkts, bytes); } static inline void netdev_tx_reset_queue(struct netdev_queue *q) { #ifdef CONFIG_BQL clear_bit(__QUEUE_STATE_STACK_XOFF, &q->state); dql_reset(&q->dql); #endif } /** * netdev_tx_reset_subqueue - reset the BQL stats and state of a netdev queue * @dev: network device * @qid: stack index of the queue to reset */ static inline void netdev_tx_reset_subqueue(const struct net_device *dev, u32 qid) { netdev_tx_reset_queue(netdev_get_tx_queue(dev, qid)); } /** * netdev_reset_queue - reset the packets and bytes count of a network device * @dev_queue: network device * * Reset the bytes and packet count of a network device and clear the * software flow control OFF bit for this network device */ static inline void netdev_reset_queue(struct net_device *dev_queue) { netdev_tx_reset_subqueue(dev_queue, 0); } /** * netdev_cap_txqueue - check if selected tx queue exceeds device queues * @dev: network device * @queue_index: given tx queue index * * Returns 0 if given tx queue index >= number of device tx queues, * otherwise returns the originally passed tx queue index. */ static inline u16 netdev_cap_txqueue(struct net_device *dev, u16 queue_index) { if (unlikely(queue_index >= dev->real_num_tx_queues)) { net_warn_ratelimited("%s selects TX queue %d, but real number of TX queues is %d\n", dev->name, queue_index, dev->real_num_tx_queues); return 0; } return queue_index; } /** * netif_running - test if up * @dev: network device * * Test if the device has been brought up. */ static inline bool netif_running(const struct net_device *dev) { return test_bit(__LINK_STATE_START, &dev->state); } /* * Routines to manage the subqueues on a device. We only need start, * stop, and a check if it's stopped. All other device management is * done at the overall netdevice level. * Also test the device if we're multiqueue. */ /** * netif_start_subqueue - allow sending packets on subqueue * @dev: network device * @queue_index: sub queue index * * Start individual transmit queue of a device with multiple transmit queues. */ static inline void netif_start_subqueue(struct net_device *dev, u16 queue_index) { struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index); netif_tx_start_queue(txq); } /** * netif_stop_subqueue - stop sending packets on subqueue * @dev: network device * @queue_index: sub queue index * * Stop individual transmit queue of a device with multiple transmit queues. */ static inline void netif_stop_subqueue(struct net_device *dev, u16 queue_index) { struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index); netif_tx_stop_queue(txq); } /** * __netif_subqueue_stopped - test status of subqueue * @dev: network device * @queue_index: sub queue index * * Check individual transmit queue of a device with multiple transmit queues. */ static inline bool __netif_subqueue_stopped(const struct net_device *dev, u16 queue_index) { struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index); return netif_tx_queue_stopped(txq); } /** * netif_subqueue_stopped - test status of subqueue * @dev: network device * @skb: sub queue buffer pointer * * Check individual transmit queue of a device with multiple transmit queues. */ static inline bool netif_subqueue_stopped(const struct net_device *dev, struct sk_buff *skb) { return __netif_subqueue_stopped(dev, skb_get_queue_mapping(skb)); } /** * netif_wake_subqueue - allow sending packets on subqueue * @dev: network device * @queue_index: sub queue index * * Resume individual transmit queue of a device with multiple transmit queues. */ static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index) { struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index); netif_tx_wake_queue(txq); } #ifdef CONFIG_XPS int netif_set_xps_queue(struct net_device *dev, const struct cpumask *mask, u16 index); int __netif_set_xps_queue(struct net_device *dev, const unsigned long *mask, u16 index, enum xps_map_type type); /** * netif_attr_test_mask - Test a CPU or Rx queue set in a mask * @j: CPU/Rx queue index * @mask: bitmask of all cpus/rx queues * @nr_bits: number of bits in the bitmask * * Test if a CPU or Rx queue index is set in a mask of all CPU/Rx queues. */ static inline bool netif_attr_test_mask(unsigned long j, const unsigned long *mask, unsigned int nr_bits) { cpu_max_bits_warn(j, nr_bits); return test_bit(j, mask); } /** * netif_attr_test_online - Test for online CPU/Rx queue * @j: CPU/Rx queue index * @online_mask: bitmask for CPUs/Rx queues that are online * @nr_bits: number of bits in the bitmask * * Returns: true if a CPU/Rx queue is online. */ static inline bool netif_attr_test_online(unsigned long j, const unsigned long *online_mask, unsigned int nr_bits) { cpu_max_bits_warn(j, nr_bits); if (online_mask) return test_bit(j, online_mask); return (j < nr_bits); } /** * netif_attrmask_next - get the next CPU/Rx queue in a cpu/Rx queues mask * @n: CPU/Rx queue index * @srcp: the cpumask/Rx queue mask pointer * @nr_bits: number of bits in the bitmask * * Returns: next (after n) CPU/Rx queue index in the mask; * >= nr_bits if no further CPUs/Rx queues set. */ static inline unsigned int netif_attrmask_next(int n, const unsigned long *srcp, unsigned int nr_bits) { /* -1 is a legal arg here. */ if (n != -1) cpu_max_bits_warn(n, nr_bits); if (srcp) return find_next_bit(srcp, nr_bits, n + 1); return n + 1; } /** * netif_attrmask_next_and - get the next CPU/Rx queue in \*src1p & \*src2p * @n: CPU/Rx queue index * @src1p: the first CPUs/Rx queues mask pointer * @src2p: the second CPUs/Rx queues mask pointer * @nr_bits: number of bits in the bitmask * * Returns: next (after n) CPU/Rx queue index set in both masks; * >= nr_bits if no further CPUs/Rx queues set in both. */ static inline int netif_attrmask_next_and(int n, const unsigned long *src1p, const unsigned long *src2p, unsigned int nr_bits) { /* -1 is a legal arg here. */ if (n != -1) cpu_max_bits_warn(n, nr_bits); if (src1p && src2p) return find_next_and_bit(src1p, src2p, nr_bits, n + 1); else if (src1p) return find_next_bit(src1p, nr_bits, n + 1); else if (src2p) return find_next_bit(src2p, nr_bits, n + 1); return n + 1; } #else static inline int netif_set_xps_queue(struct net_device *dev, const struct cpumask *mask, u16 index) { return 0; } static inline int __netif_set_xps_queue(struct net_device *dev, const unsigned long *mask, u16 index, enum xps_map_type type) { return 0; } #endif /** * netif_is_multiqueue - test if device has multiple transmit queues * @dev: network device * * Check if device has multiple transmit queues */ static inline bool netif_is_multiqueue(const struct net_device *dev) { return dev->num_tx_queues > 1; } int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq); #ifdef CONFIG_SYSFS int netif_set_real_num_rx_queues(struct net_device *dev, unsigned int rxq); #else static inline int netif_set_real_num_rx_queues(struct net_device *dev, unsigned int rxqs) { dev->real_num_rx_queues = rxqs; return 0; } #endif int netif_set_real_num_queues(struct net_device *dev, unsigned int txq, unsigned int rxq); int netif_get_num_default_rss_queues(void); void dev_kfree_skb_irq_reason(struct sk_buff *skb, enum skb_drop_reason reason); void dev_kfree_skb_any_reason(struct sk_buff *skb, enum skb_drop_reason reason); /* * It is not allowed to call kfree_skb() or consume_skb() from hardware * interrupt context or with hardware interrupts being disabled. * (in_hardirq() || irqs_disabled()) * * We provide four helpers that can be used in following contexts : * * dev_kfree_skb_irq(skb) when caller drops a packet from irq context, * replacing kfree_skb(skb) * * dev_consume_skb_irq(skb) when caller consumes a packet from irq context. * Typically used in place of consume_skb(skb) in TX completion path * * dev_kfree_skb_any(skb) when caller doesn't know its current irq context, * replacing kfree_skb(skb) * * dev_consume_skb_any(skb) when caller doesn't know its current irq context, * and consumed a packet. Used in place of consume_skb(skb) */ static inline void dev_kfree_skb_irq(struct sk_buff *skb) { dev_kfree_skb_irq_reason(skb, SKB_DROP_REASON_NOT_SPECIFIED); } static inline void dev_consume_skb_irq(struct sk_buff *skb) { dev_kfree_skb_irq_reason(skb, SKB_CONSUMED); } static inline void dev_kfree_skb_any(struct sk_buff *skb) { dev_kfree_skb_any_reason(skb, SKB_DROP_REASON_NOT_SPECIFIED); } static inline void dev_consume_skb_any(struct sk_buff *skb) { dev_kfree_skb_any_reason(skb, SKB_CONSUMED); } u32 bpf_prog_run_generic_xdp(struct sk_buff *skb, struct xdp_buff *xdp, const struct bpf_prog *xdp_prog); void generic_xdp_tx(struct sk_buff *skb, const struct bpf_prog *xdp_prog); int do_xdp_generic(const struct bpf_prog *xdp_prog, struct sk_buff **pskb); int netif_rx(struct sk_buff *skb); int __netif_rx(struct sk_buff *skb); int netif_receive_skb(struct sk_buff *skb); int netif_receive_skb_core(struct sk_buff *skb); void netif_receive_skb_list_internal(struct list_head *head); void netif_receive_skb_list(struct list_head *head); gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb); void napi_gro_flush(struct napi_struct *napi, bool flush_old); struct sk_buff *napi_get_frags(struct napi_struct *napi); gro_result_t napi_gro_frags(struct napi_struct *napi); static inline void napi_free_frags(struct napi_struct *napi) { kfree_skb(napi->skb); napi->skb = NULL; } bool netdev_is_rx_handler_busy(struct net_device *dev); int netdev_rx_handler_register(struct net_device *dev, rx_handler_func_t *rx_handler, void *rx_handler_data); void netdev_rx_handler_unregister(struct net_device *dev); bool dev_valid_name(const char *name); static inline bool is_socket_ioctl_cmd(unsigned int cmd) { return _IOC_TYPE(cmd) == SOCK_IOC_TYPE; } int get_user_ifreq(struct ifreq *ifr, void __user **ifrdata, void __user *arg); int put_user_ifreq(struct ifreq *ifr, void __user *arg); int dev_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr, void __user *data, bool *need_copyout); int dev_ifconf(struct net *net, struct ifconf __user *ifc); int generic_hwtstamp_get_lower(struct net_device *dev, struct kernel_hwtstamp_config *kernel_cfg); int generic_hwtstamp_set_lower(struct net_device *dev, struct kernel_hwtstamp_config *kernel_cfg, struct netlink_ext_ack *extack); int dev_ethtool(struct net *net, struct ifreq *ifr, void __user *userdata); unsigned int dev_get_flags(const struct net_device *); int __dev_change_flags(struct net_device *dev, unsigned int flags, struct netlink_ext_ack *extack); int dev_change_flags(struct net_device *dev, unsigned int flags, struct netlink_ext_ack *extack); int dev_set_alias(struct net_device *, const char *, size_t); int dev_get_alias(const struct net_device *, char *, size_t); int __dev_change_net_namespace(struct net_device *dev, struct net *net, const char *pat, int new_ifindex); static inline int dev_change_net_namespace(struct net_device *dev, struct net *net, const char *pat) { return __dev_change_net_namespace(dev, net, pat, 0); } int __dev_set_mtu(struct net_device *, int); int dev_set_mtu(struct net_device *, int); int dev_pre_changeaddr_notify(struct net_device *dev, const char *addr, struct netlink_ext_ack *extack); int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa, struct netlink_ext_ack *extack); int dev_set_mac_address_user(struct net_device *dev, struct sockaddr *sa, struct netlink_ext_ack *extack); int dev_get_mac_address(struct sockaddr *sa, struct net *net, char *dev_name); int dev_get_port_parent_id(struct net_device *dev, struct netdev_phys_item_id *ppid, bool recurse); bool netdev_port_same_parent_id(struct net_device *a, struct net_device *b); struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device *dev, bool *again); struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, struct netdev_queue *txq, int *ret); int bpf_xdp_link_attach(const union bpf_attr *attr, struct bpf_prog *prog); u8 dev_xdp_prog_count(struct net_device *dev); int dev_xdp_propagate(struct net_device *dev, struct netdev_bpf *bpf); u8 dev_xdp_sb_prog_count(struct net_device *dev); u32 dev_xdp_prog_id(struct net_device *dev, enum bpf_xdp_mode mode); u32 dev_get_min_mp_channel_count(const struct net_device *dev); int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb); int dev_forward_skb(struct net_device *dev, struct sk_buff *skb); int dev_forward_skb_nomtu(struct net_device *dev, struct sk_buff *skb); bool is_skb_forwardable(const struct net_device *dev, const struct sk_buff *skb); static __always_inline bool __is_skb_forwardable(const struct net_device *dev, const struct sk_buff *skb, const bool check_mtu) { const u32 vlan_hdr_len = 4; /* VLAN_HLEN */ unsigned int len; if (!(dev->flags & IFF_UP)) return false; if (!check_mtu) return true; len = dev->mtu + dev->hard_header_len + vlan_hdr_len; if (skb->len <= len) return true; /* if TSO is enabled, we don't care about the length as the packet * could be forwarded without being segmented before */ if (skb_is_gso(skb)) return true; return false; } void netdev_core_stats_inc(struct net_device *dev, u32 offset); #define DEV_CORE_STATS_INC(FIELD) \ static inline void dev_core_stats_##FIELD##_inc(struct net_device *dev) \ { \ netdev_core_stats_inc(dev, \ offsetof(struct net_device_core_stats, FIELD)); \ } DEV_CORE_STATS_INC(rx_dropped) DEV_CORE_STATS_INC(tx_dropped) DEV_CORE_STATS_INC(rx_nohandler) DEV_CORE_STATS_INC(rx_otherhost_dropped) #undef DEV_CORE_STATS_INC static __always_inline int ____dev_forward_skb(struct net_device *dev, struct sk_buff *skb, const bool check_mtu) { if (skb_orphan_frags(skb, GFP_ATOMIC) || unlikely(!__is_skb_forwardable(dev, skb, check_mtu))) { dev_core_stats_rx_dropped_inc(dev); kfree_skb(skb); return NET_RX_DROP; } skb_scrub_packet(skb, !net_eq(dev_net(dev), dev_net(skb->dev))); skb->priority = 0; return 0; } bool dev_nit_active(struct net_device *dev); void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev); static inline void __dev_put(struct net_device *dev) { if (dev) { #ifdef CONFIG_PCPU_DEV_REFCNT this_cpu_dec(*dev->pcpu_refcnt); #else refcount_dec(&dev->dev_refcnt); #endif } } static inline void __dev_hold(struct net_device *dev) { if (dev) { #ifdef CONFIG_PCPU_DEV_REFCNT this_cpu_inc(*dev->pcpu_refcnt); #else refcount_inc(&dev->dev_refcnt); #endif } } static inline void __netdev_tracker_alloc(struct net_device *dev, netdevice_tracker *tracker, gfp_t gfp) { #ifdef CONFIG_NET_DEV_REFCNT_TRACKER ref_tracker_alloc(&dev->refcnt_tracker, tracker, gfp); #endif } /* netdev_tracker_alloc() can upgrade a prior untracked reference * taken by dev_get_by_name()/dev_get_by_index() to a tracked one. */ static inline void netdev_tracker_alloc(struct net_device *dev, netdevice_tracker *tracker, gfp_t gfp) { #ifdef CONFIG_NET_DEV_REFCNT_TRACKER refcount_dec(&dev->refcnt_tracker.no_tracker); __netdev_tracker_alloc(dev, tracker, gfp); #endif } static inline void netdev_tracker_free(struct net_device *dev, netdevice_tracker *tracker) { #ifdef CONFIG_NET_DEV_REFCNT_TRACKER ref_tracker_free(&dev->refcnt_tracker, tracker); #endif } static inline void netdev_hold(struct net_device *dev, netdevice_tracker *tracker, gfp_t gfp) { if (dev) { __dev_hold(dev); __netdev_tracker_alloc(dev, tracker, gfp); } } static inline void netdev_put(struct net_device *dev, netdevice_tracker *tracker) { if (dev) { netdev_tracker_free(dev, tracker); __dev_put(dev); } } /** * dev_hold - get reference to device * @dev: network device * * Hold reference to device to keep it from being freed. * Try using netdev_hold() instead. */ static inline void dev_hold(struct net_device *dev) { netdev_hold(dev, NULL, GFP_ATOMIC); } /** * dev_put - release reference to device * @dev: network device * * Release reference to device to allow it to be freed. * Try using netdev_put() instead. */ static inline void dev_put(struct net_device *dev) { netdev_put(dev, NULL); } DEFINE_FREE(dev_put, struct net_device *, if (_T) dev_put(_T)) static inline void netdev_ref_replace(struct net_device *odev, struct net_device *ndev, netdevice_tracker *tracker, gfp_t gfp) { if (odev) netdev_tracker_free(odev, tracker); __dev_hold(ndev); __dev_put(odev); if (ndev) __netdev_tracker_alloc(ndev, tracker, gfp); } /* Carrier loss detection, dial on demand. The functions netif_carrier_on * and _off may be called from IRQ context, but it is caller * who is responsible for serialization of these calls. * * The name carrier is inappropriate, these functions should really be * called netif_lowerlayer_*() because they represent the state of any * kind of lower layer not just hardware media. */ void linkwatch_fire_event(struct net_device *dev); /** * linkwatch_sync_dev - sync linkwatch for the given device * @dev: network device to sync linkwatch for * * Sync linkwatch for the given device, removing it from the * pending work list (if queued). */ void linkwatch_sync_dev(struct net_device *dev); /** * netif_carrier_ok - test if carrier present * @dev: network device * * Check if carrier is present on device */ static inline bool netif_carrier_ok(const struct net_device *dev) { return !test_bit(__LINK_STATE_NOCARRIER, &dev->state); } unsigned long dev_trans_start(struct net_device *dev); void netdev_watchdog_up(struct net_device *dev); void netif_carrier_on(struct net_device *dev); void netif_carrier_off(struct net_device *dev); void netif_carrier_event(struct net_device *dev); /** * netif_dormant_on - mark device as dormant. * @dev: network device * * Mark device as dormant (as per RFC2863). * * The dormant state indicates that the relevant interface is not * actually in a condition to pass packets (i.e., it is not 'up') but is * in a "pending" state, waiting for some external event. For "on- * demand" interfaces, this new state identifies the situation where the * interface is waiting for events to place it in the up state. */ static inline void netif_dormant_on(struct net_device *dev) { if (!test_and_set_bit(__LINK_STATE_DORMANT, &dev->state)) linkwatch_fire_event(dev); } /** * netif_dormant_off - set device as not dormant. * @dev: network device * * Device is not in dormant state. */ static inline void netif_dormant_off(struct net_device *dev) { if (test_and_clear_bit(__LINK_STATE_DORMANT, &dev->state)) linkwatch_fire_event(dev); } /** * netif_dormant - test if device is dormant * @dev: network device * * Check if device is dormant. */ static inline bool netif_dormant(const struct net_device *dev) { return test_bit(__LINK_STATE_DORMANT, &dev->state); } /** * netif_testing_on - mark device as under test. * @dev: network device * * Mark device as under test (as per RFC2863). * * The testing state indicates that some test(s) must be performed on * the interface. After completion, of the test, the interface state * will change to up, dormant, or down, as appropriate. */ static inline void netif_testing_on(struct net_device *dev) { if (!test_and_set_bit(__LINK_STATE_TESTING, &dev->state)) linkwatch_fire_event(dev); } /** * netif_testing_off - set device as not under test. * @dev: network device * * Device is not in testing state. */ static inline void netif_testing_off(struct net_device *dev) { if (test_and_clear_bit(__LINK_STATE_TESTING, &dev->state)) linkwatch_fire_event(dev); } /** * netif_testing - test if device is under test * @dev: network device * * Check if device is under test */ static inline bool netif_testing(const struct net_device *dev) { return test_bit(__LINK_STATE_TESTING, &dev->state); } /** * netif_oper_up - test if device is operational * @dev: network device * * Check if carrier is operational */ static inline bool netif_oper_up(const struct net_device *dev) { unsigned int operstate = READ_ONCE(dev->operstate); return operstate == IF_OPER_UP || operstate == IF_OPER_UNKNOWN /* backward compat */; } /** * netif_device_present - is device available or removed * @dev: network device * * Check if device has not been removed from system. */ static inline bool netif_device_present(const struct net_device *dev) { return test_bit(__LINK_STATE_PRESENT, &dev->state); } void netif_device_detach(struct net_device *dev); void netif_device_attach(struct net_device *dev); /* * Network interface message level settings */ enum { NETIF_MSG_DRV_BIT, NETIF_MSG_PROBE_BIT, NETIF_MSG_LINK_BIT, NETIF_MSG_TIMER_BIT, NETIF_MSG_IFDOWN_BIT, NETIF_MSG_IFUP_BIT, NETIF_MSG_RX_ERR_BIT, NETIF_MSG_TX_ERR_BIT, NETIF_MSG_TX_QUEUED_BIT, NETIF_MSG_INTR_BIT, NETIF_MSG_TX_DONE_BIT, NETIF_MSG_RX_STATUS_BIT, NETIF_MSG_PKTDATA_BIT, NETIF_MSG_HW_BIT, NETIF_MSG_WOL_BIT, /* When you add a new bit above, update netif_msg_class_names array * in net/ethtool/common.c */ NETIF_MSG_CLASS_COUNT, }; /* Both ethtool_ops interface and internal driver implementation use u32 */ static_assert(NETIF_MSG_CLASS_COUNT <= 32); #define __NETIF_MSG_BIT(bit) ((u32)1 << (bit)) #define __NETIF_MSG(name) __NETIF_MSG_BIT(NETIF_MSG_ ## name ## _BIT) #define NETIF_MSG_DRV __NETIF_MSG(DRV) #define NETIF_MSG_PROBE __NETIF_MSG(PROBE) #define NETIF_MSG_LINK __NETIF_MSG(LINK) #define NETIF_MSG_TIMER __NETIF_MSG(TIMER) #define NETIF_MSG_IFDOWN __NETIF_MSG(IFDOWN) #define NETIF_MSG_IFUP __NETIF_MSG(IFUP) #define NETIF_MSG_RX_ERR __NETIF_MSG(RX_ERR) #define NETIF_MSG_TX_ERR __NETIF_MSG(TX_ERR) #define NETIF_MSG_TX_QUEUED __NETIF_MSG(TX_QUEUED) #define NETIF_MSG_INTR __NETIF_MSG(INTR) #define NETIF_MSG_TX_DONE __NETIF_MSG(TX_DONE) #define NETIF_MSG_RX_STATUS __NETIF_MSG(RX_STATUS) #define NETIF_MSG_PKTDATA __NETIF_MSG(PKTDATA) #define NETIF_MSG_HW __NETIF_MSG(HW) #define NETIF_MSG_WOL __NETIF_MSG(WOL) #define netif_msg_drv(p) ((p)->msg_enable & NETIF_MSG_DRV) #define netif_msg_probe(p) ((p)->msg_enable & NETIF_MSG_PROBE) #define netif_msg_link(p) ((p)->msg_enable & NETIF_MSG_LINK) #define netif_msg_timer(p) ((p)->msg_enable & NETIF_MSG_TIMER) #define netif_msg_ifdown(p) ((p)->msg_enable & NETIF_MSG_IFDOWN) #define netif_msg_ifup(p) ((p)->msg_enable & NETIF_MSG_IFUP) #define netif_msg_rx_err(p) ((p)->msg_enable & NETIF_MSG_RX_ERR) #define netif_msg_tx_err(p) ((p)->msg_enable & NETIF_MSG_TX_ERR) #define netif_msg_tx_queued(p) ((p)->msg_enable & NETIF_MSG_TX_QUEUED) #define netif_msg_intr(p) ((p)->msg_enable & NETIF_MSG_INTR) #define netif_msg_tx_done(p) ((p)->msg_enable & NETIF_MSG_TX_DONE) #define netif_msg_rx_status(p) ((p)->msg_enable & NETIF_MSG_RX_STATUS) #define netif_msg_pktdata(p) ((p)->msg_enable & NETIF_MSG_PKTDATA) #define netif_msg_hw(p) ((p)->msg_enable & NETIF_MSG_HW) #define netif_msg_wol(p) ((p)->msg_enable & NETIF_MSG_WOL) static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits) { /* use default */ if (debug_value < 0 || debug_value >= (sizeof(u32) * 8)) return default_msg_enable_bits; if (debug_value == 0) /* no output */ return 0; /* set low N bits */ return (1U << debug_value) - 1; } static inline void __netif_tx_lock(struct netdev_queue *txq, int cpu) { spin_lock(&txq->_xmit_lock); /* Pairs with READ_ONCE() in __dev_queue_xmit() */ WRITE_ONCE(txq->xmit_lock_owner, cpu); } static inline bool __netif_tx_acquire(struct netdev_queue *txq) { __acquire(&txq->_xmit_lock); return true; } static inline void __netif_tx_release(struct netdev_queue *txq) { __release(&txq->_xmit_lock); } static inline void __netif_tx_lock_bh(struct netdev_queue *txq) { spin_lock_bh(&txq->_xmit_lock); /* Pairs with READ_ONCE() in __dev_queue_xmit() */ WRITE_ONCE(txq->xmit_lock_owner, smp_processor_id()); } static inline bool __netif_tx_trylock(struct netdev_queue *txq) { bool ok = spin_trylock(&txq->_xmit_lock); if (likely(ok)) { /* Pairs with READ_ONCE() in __dev_queue_xmit() */ WRITE_ONCE(txq->xmit_lock_owner, smp_processor_id()); } return ok; } static inline void __netif_tx_unlock(struct netdev_queue *txq) { /* Pairs with READ_ONCE() in __dev_queue_xmit() */ WRITE_ONCE(txq->xmit_lock_owner, -1); spin_unlock(&txq->_xmit_lock); } static inline void __netif_tx_unlock_bh(struct netdev_queue *txq) { /* Pairs with READ_ONCE() in __dev_queue_xmit() */ WRITE_ONCE(txq->xmit_lock_owner, -1); spin_unlock_bh(&txq->_xmit_lock); } /* * txq->trans_start can be read locklessly from dev_watchdog() */ static inline void txq_trans_update(struct netdev_queue *txq) { if (txq->xmit_lock_owner != -1) WRITE_ONCE(txq->trans_start, jiffies); } static inline void txq_trans_cond_update(struct netdev_queue *txq) { unsigned long now = jiffies; if (READ_ONCE(txq->trans_start) != now) WRITE_ONCE(txq->trans_start, now); } /* legacy drivers only, netdev_start_xmit() sets txq->trans_start */ static inline void netif_trans_update(struct net_device *dev) { struct netdev_queue *txq = netdev_get_tx_queue(dev, 0); txq_trans_cond_update(txq); } /** * netif_tx_lock - grab network device transmit lock * @dev: network device * * Get network device transmit lock */ void netif_tx_lock(struct net_device *dev); static inline void netif_tx_lock_bh(struct net_device *dev) { local_bh_disable(); netif_tx_lock(dev); } void netif_tx_unlock(struct net_device *dev); static inline void netif_tx_unlock_bh(struct net_device *dev) { netif_tx_unlock(dev); local_bh_enable(); } #define HARD_TX_LOCK(dev, txq, cpu) { \ if (!(dev)->lltx) { \ __netif_tx_lock(txq, cpu); \ } else { \ __netif_tx_acquire(txq); \ } \ } #define HARD_TX_TRYLOCK(dev, txq) \ (!(dev)->lltx ? \ __netif_tx_trylock(txq) : \ __netif_tx_acquire(txq)) #define HARD_TX_UNLOCK(dev, txq) { \ if (!(dev)->lltx) { \ __netif_tx_unlock(txq); \ } else { \ __netif_tx_release(txq); \ } \ } static inline void netif_tx_disable(struct net_device *dev) { unsigned int i; int cpu; local_bh_disable(); cpu = smp_processor_id(); spin_lock(&dev->tx_global_lock); for (i = 0; i < dev->num_tx_queues; i++) { struct netdev_queue *txq = netdev_get_tx_queue(dev, i); __netif_tx_lock(txq, cpu); netif_tx_stop_queue(txq); __netif_tx_unlock(txq); } spin_unlock(&dev->tx_global_lock); local_bh_enable(); } static inline void netif_addr_lock(struct net_device *dev) { unsigned char nest_level = 0; #ifdef CONFIG_LOCKDEP nest_level = dev->nested_level; #endif spin_lock_nested(&dev->addr_list_lock, nest_level); } static inline void netif_addr_lock_bh(struct net_device *dev) { unsigned char nest_level = 0; #ifdef CONFIG_LOCKDEP nest_level = dev->nested_level; #endif local_bh_disable(); spin_lock_nested(&dev->addr_list_lock, nest_level); } static inline void netif_addr_unlock(struct net_device *dev) { spin_unlock(&dev->addr_list_lock); } static inline void netif_addr_unlock_bh(struct net_device *dev) { spin_unlock_bh(&dev->addr_list_lock); } /* * dev_addrs walker. Should be used only for read access. Call with * rcu_read_lock held. */ #define for_each_dev_addr(dev, ha) \ list_for_each_entry_rcu(ha, &dev->dev_addrs.list, list) /* These functions live elsewhere (drivers/net/net_init.c, but related) */ void ether_setup(struct net_device *dev); /* Allocate dummy net_device */ struct net_device *alloc_netdev_dummy(int sizeof_priv); /* Support for loadable net-drivers */ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name, unsigned char name_assign_type, void (*setup)(struct net_device *), unsigned int txqs, unsigned int rxqs); #define alloc_netdev(sizeof_priv, name, name_assign_type, setup) \ alloc_netdev_mqs(sizeof_priv, name, name_assign_type, setup, 1, 1) #define alloc_netdev_mq(sizeof_priv, name, name_assign_type, setup, count) \ alloc_netdev_mqs(sizeof_priv, name, name_assign_type, setup, count, \ count) int register_netdev(struct net_device *dev); void unregister_netdev(struct net_device *dev); int devm_register_netdev(struct device *dev, struct net_device *ndev); /* General hardware address lists handling functions */ int __hw_addr_sync(struct netdev_hw_addr_list *to_list, struct netdev_hw_addr_list *from_list, int addr_len); int __hw_addr_sync_multiple(struct netdev_hw_addr_list *to_list, struct netdev_hw_addr_list *from_list, int addr_len); void __hw_addr_unsync(struct netdev_hw_addr_list *to_list, struct netdev_hw_addr_list *from_list, int addr_len); int __hw_addr_sync_dev(struct netdev_hw_addr_list *list, struct net_device *dev, int (*sync)(struct net_device *, const unsigned char *), int (*unsync)(struct net_device *, const unsigned char *)); int __hw_addr_ref_sync_dev(struct netdev_hw_addr_list *list, struct net_device *dev, int (*sync)(struct net_device *, const unsigned char *, int), int (*unsync)(struct net_device *, const unsigned char *, int)); void __hw_addr_ref_unsync_dev(struct netdev_hw_addr_list *list, struct net_device *dev, int (*unsync)(struct net_device *, const unsigned char *, int)); void __hw_addr_unsync_dev(struct netdev_hw_addr_list *list, struct net_device *dev, int (*unsync)(struct net_device *, const unsigned char *)); void __hw_addr_init(struct netdev_hw_addr_list *list); /* Functions used for device addresses handling */ void dev_addr_mod(struct net_device *dev, unsigned int offset, const void *addr, size_t len); static inline void __dev_addr_set(struct net_device *dev, const void *addr, size_t len) { dev_addr_mod(dev, 0, addr, len); } static inline void dev_addr_set(struct net_device *dev, const u8 *addr) { __dev_addr_set(dev, addr, dev->addr_len); } int dev_addr_add(struct net_device *dev, const unsigned char *addr, unsigned char addr_type); int dev_addr_del(struct net_device *dev, const unsigned char *addr, unsigned char addr_type); /* Functions used for unicast addresses handling */ int dev_uc_add(struct net_device *dev, const unsigned char *addr); int dev_uc_add_excl(struct net_device *dev, const unsigned char *addr); int dev_uc_del(struct net_device *dev, const unsigned char *addr); int dev_uc_sync(struct net_device *to, struct net_device *from); int dev_uc_sync_multiple(struct net_device *to, struct net_device *from); void dev_uc_unsync(struct net_device *to, struct net_device *from); void dev_uc_flush(struct net_device *dev); void dev_uc_init(struct net_device *dev); /** * __dev_uc_sync - Synchronize device's unicast list * @dev: device to sync * @sync: function to call if address should be added * @unsync: function to call if address should be removed * * Add newly added addresses to the interface, and release * addresses that have been deleted. */ static inline int __dev_uc_sync(struct net_device *dev, int (*sync)(struct net_device *, const unsigned char *), int (*unsync)(struct net_device *, const unsigned char *)) { return __hw_addr_sync_dev(&dev->uc, dev, sync, unsync); } /** * __dev_uc_unsync - Remove synchronized addresses from device * @dev: device to sync * @unsync: function to call if address should be removed * * Remove all addresses that were added to the device by dev_uc_sync(). */ static inline void __dev_uc_unsync(struct net_device *dev, int (*unsync)(struct net_device *, const unsigned char *)) { __hw_addr_unsync_dev(&dev->uc, dev, unsync); } /* Functions used for multicast addresses handling */ int dev_mc_add(struct net_device *dev, const unsigned char *addr); int dev_mc_add_global(struct net_device *dev, const unsigned char *addr); int dev_mc_add_excl(struct net_device *dev, const unsigned char *addr); int dev_mc_del(struct net_device *dev, const unsigned char *addr); int dev_mc_del_global(struct net_device *dev, const unsigned char *addr); int dev_mc_sync(struct net_device *to, struct net_device *from); int dev_mc_sync_multiple(struct net_device *to, struct net_device *from); void dev_mc_unsync(struct net_device *to, struct net_device *from); void dev_mc_flush(struct net_device *dev); void dev_mc_init(struct net_device *dev); /** * __dev_mc_sync - Synchronize device's multicast list * @dev: device to sync * @sync: function to call if address should be added * @unsync: function to call if address should be removed * * Add newly added addresses to the interface, and release * addresses that have been deleted. */ static inline int __dev_mc_sync(struct net_device *dev, int (*sync)(struct net_device *, const unsigned char *), int (*unsync)(struct net_device *, const unsigned char *)) { return __hw_addr_sync_dev(&dev->mc, dev, sync, unsync); } /** * __dev_mc_unsync - Remove synchronized addresses from device * @dev: device to sync * @unsync: function to call if address should be removed * * Remove all addresses that were added to the device by dev_mc_sync(). */ static inline void __dev_mc_unsync(struct net_device *dev, int (*unsync)(struct net_device *, const unsigned char *)) { __hw_addr_unsync_dev(&dev->mc, dev, unsync); } /* Functions used for secondary unicast and multicast support */ void dev_set_rx_mode(struct net_device *dev); int dev_set_promiscuity(struct net_device *dev, int inc); int dev_set_allmulti(struct net_device *dev, int inc); void netdev_state_change(struct net_device *dev); void __netdev_notify_peers(struct net_device *dev); void netdev_notify_peers(struct net_device *dev); void netdev_features_change(struct net_device *dev); /* Load a device via the kmod */ void dev_load(struct net *net, const char *name); struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev, struct rtnl_link_stats64 *storage); void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64, const struct net_device_stats *netdev_stats); void dev_fetch_sw_netstats(struct rtnl_link_stats64 *s, const struct pcpu_sw_netstats __percpu *netstats); void dev_get_tstats64(struct net_device *dev, struct rtnl_link_stats64 *s); enum { NESTED_SYNC_IMM_BIT, NESTED_SYNC_TODO_BIT, }; #define __NESTED_SYNC_BIT(bit) ((u32)1 << (bit)) #define __NESTED_SYNC(name) __NESTED_SYNC_BIT(NESTED_SYNC_ ## name ## _BIT) #define NESTED_SYNC_IMM __NESTED_SYNC(IMM) #define NESTED_SYNC_TODO __NESTED_SYNC(TODO) struct netdev_nested_priv { unsigned char flags; void *data; }; bool netdev_has_upper_dev(struct net_device *dev, struct net_device *upper_dev); struct net_device *netdev_upper_get_next_dev_rcu(struct net_device *dev, struct list_head **iter); /* iterate through upper list, must be called under RCU read lock */ #define netdev_for_each_upper_dev_rcu(dev, updev, iter) \ for (iter = &(dev)->adj_list.upper, \ updev = netdev_upper_get_next_dev_rcu(dev, &(iter)); \ updev; \ updev = netdev_upper_get_next_dev_rcu(dev, &(iter))) int netdev_walk_all_upper_dev_rcu(struct net_device *dev, int (*fn)(struct net_device *upper_dev, struct netdev_nested_priv *priv), struct netdev_nested_priv *priv); bool netdev_has_upper_dev_all_rcu(struct net_device *dev, struct net_device *upper_dev); bool netdev_has_any_upper_dev(struct net_device *dev); void *netdev_lower_get_next_private(struct net_device *dev, struct list_head **iter); void *netdev_lower_get_next_private_rcu(struct net_device *dev, struct list_head **iter); #define netdev_for_each_lower_private(dev, priv, iter) \ for (iter = (dev)->adj_list.lower.next, \ priv = netdev_lower_get_next_private(dev, &(iter)); \ priv; \ priv = netdev_lower_get_next_private(dev, &(iter))) #define netdev_for_each_lower_private_rcu(dev, priv, iter) \ for (iter = &(dev)->adj_list.lower, \ priv = netdev_lower_get_next_private_rcu(dev, &(iter)); \ priv; \ priv = netdev_lower_get_next_private_rcu(dev, &(iter))) void *netdev_lower_get_next(struct net_device *dev, struct list_head **iter); #define netdev_for_each_lower_dev(dev, ldev, iter) \ for (iter = (dev)->adj_list.lower.next, \ ldev = netdev_lower_get_next(dev, &(iter)); \ ldev; \ ldev = netdev_lower_get_next(dev, &(iter))) struct net_device *netdev_next_lower_dev_rcu(struct net_device *dev, struct list_head **iter); int netdev_walk_all_lower_dev(struct net_device *dev, int (*fn)(struct net_device *lower_dev, struct netdev_nested_priv *priv), struct netdev_nested_priv *priv); int netdev_walk_all_lower_dev_rcu(struct net_device *dev, int (*fn)(struct net_device *lower_dev, struct netdev_nested_priv *priv), struct netdev_nested_priv *priv); void *netdev_adjacent_get_private(struct list_head *adj_list); void *netdev_lower_get_first_private_rcu(struct net_device *dev); struct net_device *netdev_master_upper_dev_get(struct net_device *dev); struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev); int netdev_upper_dev_link(struct net_device *dev, struct net_device *upper_dev, struct netlink_ext_ack *extack); int netdev_master_upper_dev_link(struct net_device *dev, struct net_device *upper_dev, void *upper_priv, void *upper_info, struct netlink_ext_ack *extack); void netdev_upper_dev_unlink(struct net_device *dev, struct net_device *upper_dev); int netdev_adjacent_change_prepare(struct net_device *old_dev, struct net_device *new_dev, struct net_device *dev, struct netlink_ext_ack *extack); void netdev_adjacent_change_commit(struct net_device *old_dev, struct net_device *new_dev, struct net_device *dev); void netdev_adjacent_change_abort(struct net_device *old_dev, struct net_device *new_dev, struct net_device *dev); void netdev_adjacent_rename_links(struct net_device *dev, char *oldname); void *netdev_lower_dev_get_private(struct net_device *dev, struct net_device *lower_dev); void netdev_lower_state_changed(struct net_device *lower_dev, void *lower_state_info); /* RSS keys are 40 or 52 bytes long */ #define NETDEV_RSS_KEY_LEN 52 extern u8 netdev_rss_key[NETDEV_RSS_KEY_LEN] __read_mostly; void netdev_rss_key_fill(void *buffer, size_t len); int skb_checksum_help(struct sk_buff *skb); int skb_crc32c_csum_help(struct sk_buff *skb); int skb_csum_hwoffload_help(struct sk_buff *skb, const netdev_features_t features); struct netdev_bonding_info { ifslave slave; ifbond master; }; struct netdev_notifier_bonding_info { struct netdev_notifier_info info; /* must be first */ struct netdev_bonding_info bonding_info; }; void netdev_bonding_info_change(struct net_device *dev, struct netdev_bonding_info *bonding_info); #if IS_ENABLED(CONFIG_ETHTOOL_NETLINK) void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data); #else static inline void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data) { } #endif __be16 skb_network_protocol(struct sk_buff *skb, int *depth); static inline bool can_checksum_protocol(netdev_features_t features, __be16 protocol) { if (protocol == htons(ETH_P_FCOE)) return !!(features & NETIF_F_FCOE_CRC); /* Assume this is an IP checksum (not SCTP CRC) */ if (features & NETIF_F_HW_CSUM) { /* Can checksum everything */ return true; } switch (protocol) { case htons(ETH_P_IP): return !!(features & NETIF_F_IP_CSUM); case htons(ETH_P_IPV6): return !!(features & NETIF_F_IPV6_CSUM); default: return false; } } #ifdef CONFIG_BUG void netdev_rx_csum_fault(struct net_device *dev, struct sk_buff *skb); #else static inline void netdev_rx_csum_fault(struct net_device *dev, struct sk_buff *skb) { } #endif /* rx skb timestamps */ void net_enable_timestamp(void); void net_disable_timestamp(void); static inline ktime_t netdev_get_tstamp(struct net_device *dev, const struct skb_shared_hwtstamps *hwtstamps, bool cycles) { const struct net_device_ops *ops = dev->netdev_ops; if (ops->ndo_get_tstamp) return ops->ndo_get_tstamp(dev, hwtstamps, cycles); return hwtstamps->hwtstamp; } #ifndef CONFIG_PREEMPT_RT static inline void netdev_xmit_set_more(bool more) { __this_cpu_write(softnet_data.xmit.more, more); } static inline bool netdev_xmit_more(void) { return __this_cpu_read(softnet_data.xmit.more); } #else static inline void netdev_xmit_set_more(bool more) { current->net_xmit.more = more; } static inline bool netdev_xmit_more(void) { return current->net_xmit.more; } #endif static inline netdev_tx_t __netdev_start_xmit(const struct net_device_ops *ops, struct sk_buff *skb, struct net_device *dev, bool more) { netdev_xmit_set_more(more); return ops->ndo_start_xmit(skb, dev); } static inline netdev_tx_t netdev_start_xmit(struct sk_buff *skb, struct net_device *dev, struct netdev_queue *txq, bool more) { const struct net_device_ops *ops = dev->netdev_ops; netdev_tx_t rc; rc = __netdev_start_xmit(ops, skb, dev, more); if (rc == NETDEV_TX_OK) txq_trans_update(txq); return rc; } int netdev_class_create_file_ns(const struct class_attribute *class_attr, const void *ns); void netdev_class_remove_file_ns(const struct class_attribute *class_attr, const void *ns); extern const struct kobj_ns_type_operations net_ns_type_operations; const char *netdev_drivername(const struct net_device *dev); static inline netdev_features_t netdev_intersect_features(netdev_features_t f1, netdev_features_t f2) { if ((f1 ^ f2) & NETIF_F_HW_CSUM) { if (f1 & NETIF_F_HW_CSUM) f1 |= (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM); else f2 |= (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM); } return f1 & f2; } static inline netdev_features_t netdev_get_wanted_features( struct net_device *dev) { return (dev->features & ~dev->hw_features) | dev->wanted_features; } netdev_features_t netdev_increment_features(netdev_features_t all, netdev_features_t one, netdev_features_t mask); /* Allow TSO being used on stacked device : * Performing the GSO segmentation before last device * is a performance improvement. */ static inline netdev_features_t netdev_add_tso_features(netdev_features_t features, netdev_features_t mask) { return netdev_increment_features(features, NETIF_F_ALL_TSO, mask); } int __netdev_update_features(struct net_device *dev); void netdev_update_features(struct net_device *dev); void netdev_change_features(struct net_device *dev); void netif_stacked_transfer_operstate(const struct net_device *rootdev, struct net_device *dev); netdev_features_t passthru_features_check(struct sk_buff *skb, struct net_device *dev, netdev_features_t features); netdev_features_t netif_skb_features(struct sk_buff *skb); void skb_warn_bad_offload(const struct sk_buff *skb); static inline bool net_gso_ok(netdev_features_t features, int gso_type) { netdev_features_t feature = (netdev_features_t)gso_type << NETIF_F_GSO_SHIFT; /* check flags correspondence */ BUILD_BUG_ON(SKB_GSO_TCPV4 != (NETIF_F_TSO >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_DODGY != (NETIF_F_GSO_ROBUST >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_TCP_ECN != (NETIF_F_TSO_ECN >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_TCP_FIXEDID != (NETIF_F_TSO_MANGLEID >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_TCPV6 != (NETIF_F_TSO6 >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_FCOE != (NETIF_F_FSO >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_GRE != (NETIF_F_GSO_GRE >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_GRE_CSUM != (NETIF_F_GSO_GRE_CSUM >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_IPXIP4 != (NETIF_F_GSO_IPXIP4 >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_IPXIP6 != (NETIF_F_GSO_IPXIP6 >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_UDP_TUNNEL != (NETIF_F_GSO_UDP_TUNNEL >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_UDP_TUNNEL_CSUM != (NETIF_F_GSO_UDP_TUNNEL_CSUM >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_PARTIAL != (NETIF_F_GSO_PARTIAL >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_TUNNEL_REMCSUM != (NETIF_F_GSO_TUNNEL_REMCSUM >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_SCTP != (NETIF_F_GSO_SCTP >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_ESP != (NETIF_F_GSO_ESP >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_UDP != (NETIF_F_GSO_UDP >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_UDP_L4 != (NETIF_F_GSO_UDP_L4 >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_FRAGLIST != (NETIF_F_GSO_FRAGLIST >> NETIF_F_GSO_SHIFT)); return (features & feature) == feature; } static inline bool skb_gso_ok(struct sk_buff *skb, netdev_features_t features) { return net_gso_ok(features, skb_shinfo(skb)->gso_type) && (!skb_has_frag_list(skb) || (features & NETIF_F_FRAGLIST)); } static inline bool netif_needs_gso(struct sk_buff *skb, netdev_features_t features) { return skb_is_gso(skb) && (!skb_gso_ok(skb, features) || unlikely((skb->ip_summed != CHECKSUM_PARTIAL) && (skb->ip_summed != CHECKSUM_UNNECESSARY))); } void netif_set_tso_max_size(struct net_device *dev, unsigned int size); void netif_set_tso_max_segs(struct net_device *dev, unsigned int segs); void netif_inherit_tso_max(struct net_device *to, const struct net_device *from); static inline unsigned int netif_get_gro_max_size(const struct net_device *dev, const struct sk_buff *skb) { /* pairs with WRITE_ONCE() in netif_set_gro(_ipv4)_max_size() */ return skb->protocol == htons(ETH_P_IPV6) ? READ_ONCE(dev->gro_max_size) : READ_ONCE(dev->gro_ipv4_max_size); } static inline unsigned int netif_get_gso_max_size(const struct net_device *dev, const struct sk_buff *skb) { /* pairs with WRITE_ONCE() in netif_set_gso(_ipv4)_max_size() */ return skb->protocol == htons(ETH_P_IPV6) ? READ_ONCE(dev->gso_max_size) : READ_ONCE(dev->gso_ipv4_max_size); } static inline bool netif_is_macsec(const struct net_device *dev) { return dev->priv_flags & IFF_MACSEC; } static inline bool netif_is_macvlan(const struct net_device *dev) { return dev->priv_flags & IFF_MACVLAN; } static inline bool netif_is_macvlan_port(const struct net_device *dev) { return dev->priv_flags & IFF_MACVLAN_PORT; } static inline bool netif_is_bond_master(const struct net_device *dev) { return dev->flags & IFF_MASTER && dev->priv_flags & IFF_BONDING; } static inline bool netif_is_bond_slave(const struct net_device *dev) { return dev->flags & IFF_SLAVE && dev->priv_flags & IFF_BONDING; } static inline bool netif_supports_nofcs(struct net_device *dev) { return dev->priv_flags & IFF_SUPP_NOFCS; } static inline bool netif_has_l3_rx_handler(const struct net_device *dev) { return dev->priv_flags & IFF_L3MDEV_RX_HANDLER; } static inline bool netif_is_l3_master(const struct net_device *dev) { return dev->priv_flags & IFF_L3MDEV_MASTER; } static inline bool netif_is_l3_slave(const struct net_device *dev) { return dev->priv_flags & IFF_L3MDEV_SLAVE; } static inline int dev_sdif(const struct net_device *dev) { #ifdef CONFIG_NET_L3_MASTER_DEV if (netif_is_l3_slave(dev)) return dev->ifindex; #endif return 0; } static inline bool netif_is_bridge_master(const struct net_device *dev) { return dev->priv_flags & IFF_EBRIDGE; } static inline bool netif_is_bridge_port(const struct net_device *dev) { return dev->priv_flags & IFF_BRIDGE_PORT; } static inline bool netif_is_ovs_master(const struct net_device *dev) { return dev->priv_flags & IFF_OPENVSWITCH; } static inline bool netif_is_ovs_port(const struct net_device *dev) { return dev->priv_flags & IFF_OVS_DATAPATH; } static inline bool netif_is_any_bridge_master(const struct net_device *dev) { return netif_is_bridge_master(dev) || netif_is_ovs_master(dev); } static inline bool netif_is_any_bridge_port(const struct net_device *dev) { return netif_is_bridge_port(dev) || netif_is_ovs_port(dev); } static inline bool netif_is_team_master(const struct net_device *dev) { return dev->priv_flags & IFF_TEAM; } static inline bool netif_is_team_port(const struct net_device *dev) { return dev->priv_flags & IFF_TEAM_PORT; } static inline bool netif_is_lag_master(const struct net_device *dev) { return netif_is_bond_master(dev) || netif_is_team_master(dev); } static inline bool netif_is_lag_port(const struct net_device *dev) { return netif_is_bond_slave(dev) || netif_is_team_port(dev); } static inline bool netif_is_rxfh_configured(const struct net_device *dev) { return dev->priv_flags & IFF_RXFH_CONFIGURED; } static inline bool netif_is_failover(const struct net_device *dev) { return dev->priv_flags & IFF_FAILOVER; } static inline bool netif_is_failover_slave(const struct net_device *dev) { return dev->priv_flags & IFF_FAILOVER_SLAVE; } /* This device needs to keep skb dst for qdisc enqueue or ndo_start_xmit() */ static inline void netif_keep_dst(struct net_device *dev) { dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM); } /* return true if dev can't cope with mtu frames that need vlan tag insertion */ static inline bool netif_reduces_vlan_mtu(struct net_device *dev) { /* TODO: reserve and use an additional IFF bit, if we get more users */ return netif_is_macsec(dev); } extern struct pernet_operations __net_initdata loopback_net_ops; /* Logging, debugging and troubleshooting/diagnostic helpers. */ /* netdev_printk helpers, similar to dev_printk */ static inline const char *netdev_name(const struct net_device *dev) { if (!dev->name[0] || strchr(dev->name, '%')) return "(unnamed net_device)"; return dev->name; } static inline const char *netdev_reg_state(const struct net_device *dev) { u8 reg_state = READ_ONCE(dev->reg_state); switch (reg_state) { case NETREG_UNINITIALIZED: return " (uninitialized)"; case NETREG_REGISTERED: return ""; case NETREG_UNREGISTERING: return " (unregistering)"; case NETREG_UNREGISTERED: return " (unregistered)"; case NETREG_RELEASED: return " (released)"; case NETREG_DUMMY: return " (dummy)"; } WARN_ONCE(1, "%s: unknown reg_state %d\n", dev->name, reg_state); return " (unknown)"; } #define MODULE_ALIAS_NETDEV(device) \ MODULE_ALIAS("netdev-" device) /* * netdev_WARN() acts like dev_printk(), but with the key difference * of using a WARN/WARN_ON to get the message out, including the * file/line information and a backtrace. */ #define netdev_WARN(dev, format, args...) \ WARN(1, "netdevice: %s%s: " format, netdev_name(dev), \ netdev_reg_state(dev), ##args) #define netdev_WARN_ONCE(dev, format, args...) \ WARN_ONCE(1, "netdevice: %s%s: " format, netdev_name(dev), \ netdev_reg_state(dev), ##args) /* * The list of packet types we will receive (as opposed to discard) * and the routines to invoke. * * Why 16. Because with 16 the only overlap we get on a hash of the * low nibble of the protocol value is RARP/SNAP/X.25. * * 0800 IP * 0001 802.3 * 0002 AX.25 * 0004 802.2 * 8035 RARP * 0005 SNAP * 0805 X.25 * 0806 ARP * 8137 IPX * 0009 Localtalk * 86DD IPv6 */ #define PTYPE_HASH_SIZE (16) #define PTYPE_HASH_MASK (PTYPE_HASH_SIZE - 1) extern struct list_head ptype_base[PTYPE_HASH_SIZE] __read_mostly; extern struct net_device *blackhole_netdev; /* Note: Avoid these macros in fast path, prefer per-cpu or per-queue counters. */ #define DEV_STATS_INC(DEV, FIELD) atomic_long_inc(&(DEV)->stats.__##FIELD) #define DEV_STATS_ADD(DEV, FIELD, VAL) \ atomic_long_add((VAL), &(DEV)->stats.__##FIELD) #define DEV_STATS_READ(DEV, FIELD) atomic_long_read(&(DEV)->stats.__##FIELD) #endif /* _LINUX_NETDEVICE_H */
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| amba | Folder | 0755 |
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| atomic | Folder | 0755 |
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| avf | Folder | 0755 |
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| bcma | Folder | 0755 |
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| bus | Folder | 0755 |
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| byteorder | Folder | 0755 |
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| can | Folder | 0755 |
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| cdx | Folder | 0755 |
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| ceph | Folder | 0755 |
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| clk | Folder | 0755 |
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| comedi | Folder | 0755 |
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| crush | Folder | 0755 |
|
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| decompress | Folder | 0755 |
|
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| device | Folder | 0755 |
|
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| dma | Folder | 0755 |
|
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| dsa | Folder | 0755 |
|
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| extcon | Folder | 0755 |
|
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| firmware | Folder | 0755 |
|
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| fpga | Folder | 0755 |
|
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| framer | Folder | 0755 |
|
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| fsl | Folder | 0755 |
|
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| gpio | Folder | 0755 |
|
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| greybus | Folder | 0755 |
|
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| habanalabs | Folder | 0755 |
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| hsi | Folder | 0755 |
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| i3c | Folder | 0755 |
|
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| iio | Folder | 0755 |
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| input | Folder | 0755 |
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| io_uring | Folder | 0755 |
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| irqchip | Folder | 0755 |
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| isdn | Folder | 0755 |
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| lockd | Folder | 0755 |
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| lsm | Folder | 0755 |
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| mailbox | Folder | 0755 |
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| mdio | Folder | 0755 |
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| memory | Folder | 0755 |
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| mfd | Folder | 0755 |
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| misc | Folder | 0755 |
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| mlx4 | Folder | 0755 |
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| mlx5 | Folder | 0755 |
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| mmc | Folder | 0755 |
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| mtd | Folder | 0755 |
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| mux | Folder | 0755 |
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| net | Folder | 0755 |
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| netfilter | Folder | 0755 |
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| netfilter_arp | Folder | 0755 |
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| netfilter_bridge | Folder | 0755 |
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| netfilter_ipv4 | Folder | 0755 |
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| netfilter_ipv6 | Folder | 0755 |
|
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| pcs | Folder | 0755 |
|
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| pds | Folder | 0755 |
|
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| perf | Folder | 0755 |
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| phy | Folder | 0755 |
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| pinctrl | Folder | 0755 |
|
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| platform_data | Folder | 0755 |
|
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| power | Folder | 0755 |
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| pse-pd | Folder | 0755 |
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| pwrseq | Folder | 0755 |
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| qat | Folder | 0755 |
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| qed | Folder | 0755 |
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| raid | Folder | 0755 |
|
|
| regulator | Folder | 0755 |
|
|
| remoteproc | Folder | 0755 |
|
|
| reset | Folder | 0755 |
|
|
| rpmsg | Folder | 0755 |
|
|
| rtc | Folder | 0755 |
|
|
| sched | Folder | 0755 |
|
|
| soc | Folder | 0755 |
|
|
| soundwire | Folder | 0755 |
|
|
| spi | Folder | 0755 |
|
|
| ssb | Folder | 0755 |
|
|
| sunrpc | Folder | 0755 |
|
|
| surface_aggregator | Folder | 0755 |
|
|
| ulpi | Folder | 0755 |
|
|
| unaligned | Folder | 0755 |
|
|
| usb | Folder | 0755 |
|
|
| 8250_pci.h | File | 1.01 KB | 0644 |
|
| acct.h | File | 2.45 KB | 0644 |
|
| acpi.h | File | 44.88 KB | 0644 |
|
| acpi_amd_wbrf.h | File | 2.24 KB | 0644 |
|
| acpi_dma.h | File | 2.95 KB | 0644 |
|
| acpi_iort.h | File | 2.64 KB | 0644 |
|
| acpi_mdio.h | File | 819 B | 0644 |
|
| acpi_pmtmr.h | File | 1.02 KB | 0644 |
|
| acpi_viot.h | File | 478 B | 0644 |
|
| adb.h | File | 1.79 KB | 0644 |
|
| adfs_fs.h | File | 574 B | 0644 |
|
| adreno-smmu-priv.h | File | 3.15 KB | 0644 |
|
| adxl.h | File | 310 B | 0644 |
|
| aer.h | File | 1.49 KB | 0644 |
|
| agp_backend.h | File | 3.45 KB | 0644 |
|
| agpgart.h | File | 3.79 KB | 0644 |
|
| ahci-remap.h | File | 607 B | 0644 |
|
| ahci_platform.h | File | 1.81 KB | 0644 |
|
| aio.h | File | 570 B | 0644 |
|
| alarmtimer.h | File | 1.83 KB | 0644 |
|
| alcor_pci.h | File | 8.74 KB | 0644 |
|
| align.h | File | 552 B | 0644 |
|
| alloc_tag.h | File | 6.4 KB | 0644 |
|
| altera_jtaguart.h | File | 379 B | 0644 |
|
| altera_uart.h | File | 397 B | 0644 |
|
| amd-iommu.h | File | 2.12 KB | 0644 |
|
| amd-pmf-io.h | File | 1.58 KB | 0644 |
|
| anon_inodes.h | File | 1021 B | 0644 |
|
| aperture.h | File | 1.61 KB | 0644 |
|
| apm-emulation.h | File | 1.56 KB | 0644 |
|
| apm_bios.h | File | 2.25 KB | 0644 |
|
| apple-gmux.h | File | 4.63 KB | 0644 |
|
| arch_topology.h | File | 2.93 KB | 0644 |
|
| args.h | File | 1021 B | 0644 |
|
| arm-cci.h | File | 1.39 KB | 0644 |
|
| arm-smccc.h | File | 20.7 KB | 0644 |
|
| arm_ffa.h | File | 14.71 KB | 0644 |
|
| arm_sdei.h | File | 2.67 KB | 0644 |
|
| armada-37xx-rwtm-mailbox.h | File | 431 B | 0644 |
|
| array_size.h | File | 332 B | 0644 |
|
| ascii85.h | File | 555 B | 0644 |
|
| asn1.h | File | 1.79 KB | 0644 |
|
| asn1_ber_bytecode.h | File | 2.52 KB | 0644 |
|
| asn1_decoder.h | File | 493 B | 0644 |
|
| asn1_encoder.h | File | 983 B | 0644 |
|
| assoc_array.h | File | 2.88 KB | 0644 |
|
| assoc_array_priv.h | File | 5.3 KB | 0644 |
|
| async.h | File | 4.36 KB | 0644 |
|
| async_tx.h | File | 6.7 KB | 0644 |
|
| ata.h | File | 30.39 KB | 0644 |
|
| ata_platform.h | File | 755 B | 0644 |
|
| atalk.h | File | 4.45 KB | 0644 |
|
| atm.h | File | 287 B | 0644 |
|
| atm_tcp.h | File | 542 B | 0644 |
|
| atmdev.h | File | 10.17 KB | 0644 |
|
| atmel-isc-media.h | File | 2.07 KB | 0644 |
|
| atmel-ssc.h | File | 9.74 KB | 0644 |
|
| atmel_pdc.h | File | 1.26 KB | 0644 |
|
| atomic.h | File | 2.58 KB | 0644 |
|
| attribute_container.h | File | 2.47 KB | 0644 |
|
| audit.h | File | 20.48 KB | 0644 |
|
| audit_arch.h | File | 559 B | 0644 |
|
| auto_dev-ioctl.h | File | 296 B | 0644 |
|
| auto_fs.h | File | 278 B | 0644 |
|
| auxiliary_bus.h | File | 10.33 KB | 0644 |
|
| auxvec.h | File | 304 B | 0644 |
|
| average.h | File | 2.42 KB | 0644 |
|
| backing-dev-defs.h | File | 8.4 KB | 0644 |
|
| backing-dev.h | File | 10.41 KB | 0644 |
|
| backing-file.h | File | 1.51 KB | 0644 |
|
| backlight.h | File | 11.9 KB | 0644 |
|
| badblocks.h | File | 2.66 KB | 0644 |
|
| balloon_compaction.h | File | 6 KB | 0644 |
|
| base64.h | File | 370 B | 0644 |
|
| bcd.h | File | 683 B | 0644 |
|
| bch.h | File | 2.1 KB | 0644 |
|
| bcm47xx_nvram.h | File | 1.2 KB | 0644 |
|
| bcm47xx_sprom.h | File | 616 B | 0644 |
|
| bcm47xx_wdt.h | File | 555 B | 0644 |
|
| bcm963xx_nvram.h | File | 2.96 KB | 0644 |
|
| bcm963xx_tag.h | File | 3.6 KB | 0644 |
|
| binfmts.h | File | 4.63 KB | 0644 |
|
| bio-integrity.h | File | 4.16 KB | 0644 |
|
| bio.h | File | 18.01 KB | 0644 |
|
| bit_spinlock.h | File | 2.3 KB | 0644 |
|
| bitfield.h | File | 6.39 KB | 0644 |
|
| bitmap-str.h | File | 842 B | 0644 |
|
| bitmap.h | File | 29.11 KB | 0644 |
|
| bitops.h | File | 10.14 KB | 0644 |
|
| bitrev.h | File | 2.53 KB | 0644 |
|
| bits.h | File | 1.57 KB | 0644 |
|
| blk-cgroup.h | File | 1.53 KB | 0644 |
|
| blk-crypto-profile.h | File | 5.3 KB | 0644 |
|
| blk-crypto.h | File | 4.13 KB | 0644 |
|
| blk-integrity.h | File | 3.99 KB | 0644 |
|
| blk-mq.h | File | 33.72 KB | 0644 |
|
| blk-pm.h | File | 647 B | 0644 |
|
| blk_types.h | File | 15.31 KB | 0644 |
|
| blkdev.h | File | 49.82 KB | 0644 |
|
| blkpg.h | File | 436 B | 0644 |
|
| blktrace_api.h | File | 3.55 KB | 0644 |
|
| blockgroup_lock.h | File | 810 B | 0644 |
|
| bma150.h | File | 1.25 KB | 0644 |
|
| bootconfig.h | File | 9.27 KB | 0644 |
|
| bootmem_info.h | File | 2.04 KB | 0644 |
|
| bottom_half.h | File | 1013 B | 0644 |
|
| bpf-cgroup-defs.h | File | 2.07 KB | 0644 |
|
| bpf-cgroup.h | File | 18.4 KB | 0644 |
|
| bpf-netns.h | File | 1.41 KB | 0644 |
|
| bpf.h | File | 110.52 KB | 0644 |
|
| bpf_crypto.h | File | 865 B | 0644 |
|
| bpf_lirc.h | File | 698 B | 0644 |
|
| bpf_local_storage.h | File | 6.61 KB | 0644 |
|
| bpf_lsm.h | File | 2.01 KB | 0644 |
|
| bpf_mem_alloc.h | File | 2.05 KB | 0644 |
|
| bpf_mprog.h | File | 9.29 KB | 0644 |
|
| bpf_trace.h | File | 166 B | 0644 |
|
| bpf_types.h | File | 6.1 KB | 0644 |
|
| bpf_verifier.h | File | 33.06 KB | 0644 |
|
| bpfptr.h | File | 2.09 KB | 0644 |
|
| brcmphy.h | File | 21.77 KB | 0644 |
|
| bsearch.h | File | 624 B | 0644 |
|
| bsg-lib.h | File | 1.71 KB | 0644 |
|
| bsg.h | File | 499 B | 0644 |
|
| btf.h | File | 20.05 KB | 0644 |
|
| btf_ids.h | File | 8.18 KB | 0644 |
|
| btree-128.h | File | 2.67 KB | 0644 |
|
| btree-type.h | File | 3.9 KB | 0644 |
|
| btree.h | File | 6.84 KB | 0644 |
|
| btrfs.h | File | 145 B | 0644 |
|
| buffer_head.h | File | 17.37 KB | 0644 |
|
| bug.h | File | 2.33 KB | 0644 |
|
| build-salt.h | File | 375 B | 0644 |
|
| build_bug.h | File | 2.99 KB | 0644 |
|
| buildid.h | File | 671 B | 0644 |
|
| bvec.h | File | 7.54 KB | 0644 |
|
| c2port.h | File | 1.35 KB | 0644 |
|
| cache.h | File | 5.51 KB | 0644 |
|
| cacheflush.h | File | 675 B | 0644 |
|
| cacheinfo.h | File | 4.92 KB | 0644 |
|
| call_once.h | File | 1.67 KB | 0644 |
|
| capability.h | File | 6.27 KB | 0644 |
|
| cb710.h | File | 5.36 KB | 0644 |
|
| cc_platform.h | File | 3.42 KB | 0644 |
|
| cciss_ioctl.h | File | 1.03 KB | 0644 |
|
| ccp.h | File | 18.14 KB | 0644 |
|
| cdev.h | File | 845 B | 0644 |
|
| cdrom.h | File | 8.92 KB | 0644 |
|
| cfag12864b.h | File | 1.07 KB | 0644 |
|
| cfi.h | File | 1.23 KB | 0644 |
|
| cfi_types.h | File | 1.06 KB | 0644 |
|
| cgroup-defs.h | File | 26.77 KB | 0644 |
|
| cgroup.h | File | 26.33 KB | 0644 |
|
| cgroup_api.h | File | 26 B | 0644 |
|
| cgroup_dmem.h | File | 1.91 KB | 0644 |
|
| cgroup_rdma.h | File | 1.18 KB | 0644 |
|
| cgroup_refcnt.h | File | 2.59 KB | 0644 |
|
| cgroup_subsys.h | File | 1.28 KB | 0644 |
|
| circ_buf.h | File | 1.09 KB | 0644 |
|
| cleanup.h | File | 13.45 KB | 0644 |
|
| clk-provider.h | File | 65.77 KB | 0644 |
|
| clk.h | File | 36.18 KB | 0644 |
|
| clkdev.h | File | 1.2 KB | 0644 |
|
| clockchips.h | File | 7.29 KB | 0644 |
|
| clocksource.h | File | 11.01 KB | 0644 |
|
| clocksource_ids.h | File | 333 B | 0644 |
|
| closure.h | File | 14.22 KB | 0644 |
|
| cma.h | File | 2.26 KB | 0644 |
|
| cmpxchg-emu.h | File | 435 B | 0644 |
|
| cn_proc.h | File | 1.85 KB | 0644 |
|
| cnt32_to_63.h | File | 3.46 KB | 0644 |
|
| coda.h | File | 2.16 KB | 0644 |
|
| codetag.h | File | 3.4 KB | 0644 |
|
| compaction.h | File | 4.5 KB | 0644 |
|
| compat.h | File | 32.32 KB | 0644 |
|
| compiler-clang.h | File | 4.13 KB | 0644 |
|
| compiler-gcc.h | File | 3.92 KB | 0644 |
|
| compiler-version.h | File | 517 B | 0644 |
|
| compiler.h | File | 12.26 KB | 0644 |
|
| compiler_attributes.h | File | 15.91 KB | 0644 |
|
| compiler_types.h | File | 18.79 KB | 0644 |
|
| completion.h | File | 4.14 KB | 0644 |
|
| component.h | File | 4.35 KB | 0644 |
|
| configfs.h | File | 8.54 KB | 0644 |
|
| connector.h | File | 4.01 KB | 0644 |
|
| console.h | File | 24.18 KB | 0644 |
|
| console_struct.h | File | 6.98 KB | 0644 |
|
| consolemap.h | File | 1.25 KB | 0644 |
|
| const.h | File | 100 B | 0644 |
|
| container.h | File | 616 B | 0644 |
|
| container_of.h | File | 1.3 KB | 0644 |
|
| context_tracking.h | File | 4.4 KB | 0644 |
|
| context_tracking_irq.h | File | 633 B | 0644 |
|
| context_tracking_state.h | File | 3.8 KB | 0644 |
|
| cookie.h | File | 1.22 KB | 0644 |
|
| cordic.h | File | 2.08 KB | 0644 |
|
| coredump.h | File | 2.17 KB | 0644 |
|
| coresight-pmu.h | File | 2.32 KB | 0644 |
|
| coresight-stm.h | File | 152 B | 0644 |
|
| coresight.h | File | 22.68 KB | 0644 |
|
| count_zeros.h | File | 1.42 KB | 0644 |
|
| counter.h | File | 21.48 KB | 0644 |
|
| cper.h | File | 17.59 KB | 0644 |
|
| cpu.h | File | 6.67 KB | 0644 |
|
| cpu_cooling.h | File | 1.83 KB | 0644 |
|
| cpu_pm.h | File | 2.38 KB | 0644 |
|
| cpu_rmap.h | File | 1.7 KB | 0644 |
|
| cpu_smt.h | File | 1.12 KB | 0644 |
|
| cpufeature.h | File | 1.71 KB | 0644 |
|
| cpufreq.h | File | 36.37 KB | 0644 |
|
| cpuhotplug.h | File | 16.95 KB | 0644 |
|
| cpuhplock.h | File | 1.52 KB | 0644 |
|
| cpuidle.h | File | 11.42 KB | 0644 |
|
| cpuidle_haltpoll.h | File | 312 B | 0644 |
|
| cpumask.h | File | 37.26 KB | 0644 |
|
| cpumask_api.h | File | 27 B | 0644 |
|
| cpumask_types.h | File | 2.18 KB | 0644 |
|
| cpuset.h | File | 8.01 KB | 0644 |
|
| crash_core.h | File | 2.65 KB | 0644 |
|
| crash_dump.h | File | 6.29 KB | 0644 |
|
| crash_reserve.h | File | 1.33 KB | 0644 |
|
| crc-ccitt.h | File | 369 B | 0644 |
|
| crc-itu-t.h | File | 530 B | 0644 |
|
| crc-t10dif.h | File | 759 B | 0644 |
|
| crc16.h | File | 540 B | 0644 |
|
| crc32.h | File | 4.23 KB | 0644 |
|
| crc32c.h | File | 346 B | 0644 |
|
| crc32poly.h | File | 610 B | 0644 |
|
| crc4.h | File | 192 B | 0644 |
|
| crc64.h | File | 539 B | 0644 |
|
| crc7.h | File | 316 B | 0644 |
|
| crc8.h | File | 3.66 KB | 0644 |
|
| cred.h | File | 11.95 KB | 0644 |
|
| crypto.h | File | 19.01 KB | 0644 |
|
| cs5535.h | File | 6.13 KB | 0644 |
|
| ctype.h | File | 1.87 KB | 0644 |
|
| cuda.h | File | 620 B | 0644 |
|
| damon.h | File | 33.47 KB | 0644 |
|
| dasd_mod.h | File | 204 B | 0644 |
|
| davinci_emac.h | File | 1.05 KB | 0644 |
|
| dax.h | File | 8.75 KB | 0644 |
|
| dca.h | File | 1.88 KB | 0644 |
|
| dcache.h | File | 18.81 KB | 0644 |
|
| dccp.h | File | 10.74 KB | 0644 |
|
| debug_locks.h | File | 1.57 KB | 0644 |
|
| debugfs.h | File | 15.87 KB | 0644 |
|
| debugobjects.h | File | 4.09 KB | 0644 |
|
| delay.h | File | 4.18 KB | 0644 |
|
| delayacct.h | File | 7.08 KB | 0644 |
|
| delayed_call.h | File | 709 B | 0644 |
|
| dev_printk.h | File | 9.74 KB | 0644 |
|
| devcoredump.h | File | 3.53 KB | 0644 |
|
| devfreq-event.h | File | 5.95 KB | 0644 |
|
| devfreq.h | File | 14.52 KB | 0644 |
|
| devfreq_cooling.h | File | 2.7 KB | 0644 |
|
| device-mapper.h | File | 21.11 KB | 0644 |
|
| device.h | File | 43.19 KB | 0644 |
|
| device_cgroup.h | File | 1.57 KB | 0644 |
|
| devm-helpers.h | File | 2.67 KB | 0644 |
|
| devpts_fs.h | File | 1.13 KB | 0644 |
|
| dfl.h | File | 2.72 KB | 0644 |
|
| digsig.h | File | 1.18 KB | 0644 |
|
| dim.h | File | 12.69 KB | 0644 |
|
| dio.h | File | 10.77 KB | 0644 |
|
| dirent.h | File | 215 B | 0644 |
|
| dlm.h | File | 6.44 KB | 0644 |
|
| dlm_plock.h | File | 642 B | 0644 |
|
| dm-bufio.h | File | 5.16 KB | 0644 |
|
| dm-dirty-log.h | File | 4 KB | 0644 |
|
| dm-io.h | File | 2.03 KB | 0644 |
|
| dm-kcopyd.h | File | 3.03 KB | 0644 |
|
| dm-region-hash.h | File | 3.16 KB | 0644 |
|
| dm-verity-loadpin.h | File | 617 B | 0644 |
|
| dm9000.h | File | 987 B | 0644 |
|
| dma-buf.h | File | 21.21 KB | 0644 |
|
| dma-direct.h | File | 4.16 KB | 0644 |
|
| dma-direction.h | File | 407 B | 0644 |
|
| dma-fence-array.h | File | 2.86 KB | 0644 |
|
| dma-fence-chain.h | File | 3.66 KB | 0644 |
|
| dma-fence-unwrap.h | File | 2.24 KB | 0644 |
|
| dma-fence.h | File | 22.94 KB | 0644 |
|
| dma-heap.h | File | 1.13 KB | 0644 |
|
| dma-map-ops.h | File | 15.89 KB | 0644 |
|
| dma-mapping.h | File | 21.19 KB | 0644 |
|
| dma-resv.h | File | 16.94 KB | 0644 |
|
| dmaengine.h | File | 55.21 KB | 0644 |
|
| dmapool.h | File | 1.79 KB | 0644 |
|
| dmar.h | File | 8.06 KB | 0644 |
|
| dmi.h | File | 4.27 KB | 0644 |
|
| dnotify.h | File | 1012 B | 0644 |
|
| dns_resolver.h | File | 1.36 KB | 0644 |
|
| dpll.h | File | 6.78 KB | 0644 |
|
| dqblk_qtree.h | File | 2.19 KB | 0644 |
|
| dqblk_v1.h | File | 327 B | 0644 |
|
| dqblk_v2.h | File | 406 B | 0644 |
|
| drbd.h | File | 9.92 KB | 0644 |
|
| drbd_config.h | File | 285 B | 0644 |
|
| drbd_genl.h | File | 21.49 KB | 0644 |
|
| drbd_genl_api.h | File | 1.76 KB | 0644 |
|
| drbd_limits.h | File | 7.92 KB | 0644 |
|
| ds2782_battery.h | File | 158 B | 0644 |
|
| dtlk.h | File | 3.5 KB | 0644 |
|
| dtpm.h | File | 1.46 KB | 0644 |
|
| dw_apb_timer.h | File | 1.32 KB | 0644 |
|
| dynamic_debug.h | File | 10.96 KB | 0644 |
|
| dynamic_queue_limits.h | File | 5.43 KB | 0644 |
|
| earlycpio.h | File | 359 B | 0644 |
|
| ecryptfs.h | File | 3.82 KB | 0644 |
|
| edac.h | File | 19.44 KB | 0644 |
|
| edd.h | File | 1.05 KB | 0644 |
|
| eeprom_93cx6.h | File | 2.64 KB | 0644 |
|
| efi-bgrt.h | File | 644 B | 0644 |
|
| efi.h | File | 44.59 KB | 0644 |
|
| efi_embedded_fw.h | File | 1.04 KB | 0644 |
|
| efs_vh.h | File | 1.55 KB | 0644 |
|
| eisa.h | File | 2.97 KB | 0644 |
|
| elf-fdpic.h | File | 2.39 KB | 0644 |
|
| elf-randomize.h | File | 583 B | 0644 |
|
| elf.h | File | 2.97 KB | 0644 |
|
| elfcore-compat.h | File | 1.43 KB | 0644 |
|
| elfcore.h | File | 3.93 KB | 0644 |
|
| elfnote-lto.h | File | 314 B | 0644 |
|
| elfnote.h | File | 3.54 KB | 0644 |
|
| enclosure.h | File | 4.02 KB | 0644 |
|
| energy_model.h | File | 13.12 KB | 0644 |
|
| entry-common.h | File | 18.62 KB | 0644 |
|
| entry-kvm.h | File | 2.77 KB | 0644 |
|
| err.h | File | 3.35 KB | 0644 |
|
| errname.h | File | 283 B | 0644 |
|
| errno.h | File | 1.45 KB | 0644 |
|
| error-injection.h | File | 630 B | 0644 |
|
| errqueue.h | File | 524 B | 0644 |
|
| errseq.h | File | 382 B | 0644 |
|
| etherdevice.h | File | 19.37 KB | 0644 |
|
| ethtool.h | File | 52.71 KB | 0644 |
|
| ethtool_netlink.h | File | 3.74 KB | 0644 |
|
| eventfd.h | File | 2.1 KB | 0644 |
|
| eventpoll.h | File | 2.41 KB | 0644 |
|
| evm.h | File | 2.12 KB | 0644 |
|
| execmem.h | File | 5.72 KB | 0644 |
|
| export-internal.h | File | 2.3 KB | 0644 |
|
| export.h | File | 2.67 KB | 0644 |
|
| exportfs.h | File | 11.19 KB | 0644 |
|
| ext2_fs.h | File | 967 B | 0644 |
|
| extable.h | File | 1.28 KB | 0644 |
|
| extcon-provider.h | File | 3.83 KB | 0644 |
|
| extcon.h | File | 9.99 KB | 0644 |
|
| f2fs_fs.h | File | 20.26 KB | 0644 |
|
| f75375s.h | File | 541 B | 0644 |
|
| falloc.h | File | 1.79 KB | 0644 |
|
| fanotify.h | File | 4.99 KB | 0644 |
|
| fault-inject-usercopy.h | File | 496 B | 0644 |
|
| fault-inject.h | File | 3.07 KB | 0644 |
|
| fb.h | File | 30.04 KB | 0644 |
|
| fbcon.h | File | 2.09 KB | 0644 |
|
| fcdevice.h | File | 774 B | 0644 |
|
| fcntl.h | File | 1.66 KB | 0644 |
|
| fd.h | File | 490 B | 0644 |
|
| fddidevice.h | File | 833 B | 0644 |
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| fdtable.h | File | 3.08 KB | 0644 |
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| fec.h | File | 463 B | 0644 |
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| fiemap.h | File | 831 B | 0644 |
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| file.h | File | 3.66 KB | 0644 |
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| file_ref.h | File | 5.46 KB | 0644 |
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| fileattr.h | File | 1.9 KB | 0644 |
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| filelock.h | File | 13.17 KB | 0644 |
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| filter.h | File | 48.89 KB | 0644 |
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| find.h | File | 20.71 KB | 0644 |
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| fips.h | File | 303 B | 0644 |
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| firewire.h | File | 17.27 KB | 0644 |
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| firmware-map.h | File | 959 B | 0644 |
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| firmware.h | File | 6.3 KB | 0644 |
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| fixp-arith.h | File | 4.21 KB | 0644 |
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| flat.h | File | 2.57 KB | 0644 |
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| flex_proportions.h | File | 1.98 KB | 0644 |
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| folio_queue.h | File | 9.99 KB | 0644 |
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| font.h | File | 1.7 KB | 0644 |
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| fortify-string.h | File | 28.64 KB | 0644 |
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| fprobe.h | File | 3.92 KB | 0644 |
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| fpu.h | File | 246 B | 0644 |
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| freezer.h | File | 2.34 KB | 0644 |
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| fs.h | File | 129.11 KB | 0644 |
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| fs_api.h | File | 22 B | 0644 |
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| fs_context.h | File | 8.36 KB | 0644 |
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| fs_parser.h | File | 5.01 KB | 0644 |
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| fs_pin.h | File | 539 B | 0644 |
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| fs_stack.h | File | 895 B | 0644 |
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| fs_struct.h | File | 1.04 KB | 0644 |
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| fs_types.h | File | 2.02 KB | 0644 |
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| fscache-cache.h | File | 7.09 KB | 0644 |
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| fscache.h | File | 24.09 KB | 0644 |
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| fscrypt.h | File | 34.57 KB | 0644 |
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| fsi-occ.h | File | 715 B | 0644 |
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| fsi-sbefifo.h | File | 629 B | 0644 |
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| fsi.h | File | 2.27 KB | 0644 |
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| fsl-diu-fb.h | File | 3.87 KB | 0644 |
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| fsl_devices.h | File | 4.16 KB | 0644 |
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| fsl_hypervisor.h | File | 2.76 KB | 0644 |
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| fsl_ifc.h | File | 24.48 KB | 0644 |
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| fsldma.h | File | 202 B | 0644 |
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| fsnotify.h | File | 13.17 KB | 0644 |
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| fsnotify_backend.h | File | 31.2 KB | 0644 |
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| fsverity.h | File | 9.29 KB | 0644 |
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| ftrace.h | File | 43.74 KB | 0644 |
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| ftrace_irq.h | File | 884 B | 0644 |
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| ftrace_regs.h | File | 1.31 KB | 0644 |
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| futex.h | File | 2.44 KB | 0644 |
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| fw_table.h | File | 1.75 KB | 0644 |
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| fwnode.h | File | 7.81 KB | 0644 |
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| fwnode_mdio.h | File | 858 B | 0644 |
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| gameport.h | File | 5.24 KB | 0644 |
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| gcd.h | File | 193 B | 0644 |
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| genalloc.h | File | 7.68 KB | 0644 |
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| generic-radix-tree.h | File | 11.43 KB | 0644 |
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| genl_magic_func.h | File | 11.67 KB | 0644 |
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| genl_magic_struct.h | File | 7.58 KB | 0644 |
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| getcpu.h | File | 641 B | 0644 |
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| gfp.h | File | 14.84 KB | 0644 |
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| gfp_api.h | File | 23 B | 0644 |
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| gfp_types.h | File | 16.57 KB | 0644 |
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| glob.h | File | 256 B | 0644 |
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| gnss.h | File | 1.56 KB | 0644 |
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| goldfish.h | File | 878 B | 0644 |
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| gpio-pxa.h | File | 571 B | 0644 |
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| gpio.h | File | 5.01 KB | 0644 |
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| gpio_keys.h | File | 1.81 KB | 0644 |
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| greybus.h | File | 3.57 KB | 0644 |
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| group_cpus.h | File | 310 B | 0644 |
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| hardirq.h | File | 3.25 KB | 0644 |
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| hash.h | File | 2.93 KB | 0644 |
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| hashtable.h | File | 6.67 KB | 0644 |
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| hashtable_api.h | File | 29 B | 0644 |
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| hdlc.h | File | 3.19 KB | 0644 |
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| hdlcdrv.h | File | 6.32 KB | 0644 |
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| hdmi.h | File | 12.84 KB | 0644 |
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| hex.h | File | 884 B | 0644 |
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| hid-debug.h | File | 1.42 KB | 0644 |
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| hid-over-i2c.h | File | 3.53 KB | 0644 |
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| hid-over-spi.h | File | 4.91 KB | 0644 |
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| hid-roccat.h | File | 490 B | 0644 |
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| hid-sensor-hub.h | File | 8.97 KB | 0644 |
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| hid-sensor-ids.h | File | 7.85 KB | 0644 |
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| hid.h | File | 39.52 KB | 0644 |
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| hid_bpf.h | File | 8.19 KB | 0644 |
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| hidden.h | File | 966 B | 0644 |
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| hiddev.h | File | 1.42 KB | 0644 |
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| hidraw.h | File | 1.13 KB | 0644 |
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| highmem-internal.h | File | 6.62 KB | 0644 |
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| highmem.h | File | 18.61 KB | 0644 |
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| highuid.h | File | 3.12 KB | 0644 |
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| hil.h | File | 18.42 KB | 0644 |
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| hil_mlc.h | File | 5.13 KB | 0644 |
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| hippidevice.h | File | 1.08 KB | 0644 |
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| hisi_acc_qm.h | File | 14.13 KB | 0644 |
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| hmm.h | File | 3.93 KB | 0644 |
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| host1x.h | File | 13.67 KB | 0644 |
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| host1x_context_bus.h | File | 337 B | 0644 |
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| hp_sdc.h | File | 14.01 KB | 0644 |
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| hpet.h | File | 2.55 KB | 0644 |
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| hrtimer.h | File | 11.36 KB | 0644 |
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| hrtimer_api.h | File | 27 B | 0644 |
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| hrtimer_defs.h | File | 4.22 KB | 0644 |
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| hrtimer_types.h | File | 1.53 KB | 0644 |
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| hte.h | File | 7.37 KB | 0644 |
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| huge_mm.h | File | 18.87 KB | 0644 |
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| hugetlb.h | File | 36.03 KB | 0644 |
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| hugetlb_cgroup.h | File | 6.78 KB | 0644 |
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| hugetlb_inline.h | File | 374 B | 0644 |
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| hw_breakpoint.h | File | 4.19 KB | 0644 |
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| hw_random.h | File | 2.23 KB | 0644 |
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| hwmon-sysfs.h | File | 2.8 KB | 0644 |
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| hwmon-vid.h | File | 862 B | 0644 |
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| hwmon.h | File | 15.94 KB | 0644 |
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| hwspinlock.h | File | 15.79 KB | 0644 |
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| hyperv.h | File | 49.31 KB | 0644 |
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| hypervisor.h | File | 748 B | 0644 |
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| i2c-algo-bit.h | File | 1.4 KB | 0644 |
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| i2c-algo-pca.h | File | 2.89 KB | 0644 |
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| i2c-algo-pcf.h | File | 1.21 KB | 0644 |
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| i2c-atr.h | File | 3.95 KB | 0644 |
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| i2c-dev.h | File | 371 B | 0644 |
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| i2c-mux.h | File | 1.61 KB | 0644 |
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| i2c-of-prober.h | File | 4.94 KB | 0644 |
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| i2c-smbus.h | File | 1.69 KB | 0644 |
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| i2c.h | File | 39.67 KB | 0644 |
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| i8042.h | File | 2.45 KB | 0644 |
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| i8253.h | File | 808 B | 0644 |
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| i8254.h | File | 489 B | 0644 |
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| icmp.h | File | 1 KB | 0644 |
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| icmpv6.h | File | 2.87 KB | 0644 |
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| idle_inject.h | File | 1.02 KB | 0644 |
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| idr.h | File | 9.72 KB | 0644 |
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| ieee80211.h | File | 180.45 KB | 0644 |
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| ieee802154.h | File | 14.46 KB | 0644 |
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| if_arp.h | File | 1.81 KB | 0644 |
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| if_bridge.h | File | 5.42 KB | 0644 |
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| if_eql.h | File | 1.13 KB | 0644 |
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| if_ether.h | File | 1.26 KB | 0644 |
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| if_fddi.h | File | 3.24 KB | 0644 |
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| if_hsr.h | File | 1.5 KB | 0644 |
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| if_link.h | File | 592 B | 0644 |
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| if_macvlan.h | File | 2.76 KB | 0644 |
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| if_phonet.h | File | 319 B | 0644 |
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| if_pppol2tp.h | File | 501 B | 0644 |
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| if_pppox.h | File | 2.83 KB | 0644 |
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| if_rmnet.h | File | 2.06 KB | 0644 |
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| if_tap.h | File | 2.21 KB | 0644 |
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| if_team.h | File | 7.94 KB | 0644 |
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| if_tun.h | File | 1.54 KB | 0644 |
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| if_tunnel.h | File | 409 B | 0644 |
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| if_vlan.h | File | 22.16 KB | 0644 |
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| igmp.h | File | 4.42 KB | 0644 |
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| ihex.h | File | 2.15 KB | 0644 |
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| ima.h | File | 2.71 KB | 0644 |
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| imx-media.h | File | 605 B | 0644 |
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| in.h | File | 2.29 KB | 0644 |
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| in6.h | File | 1.63 KB | 0644 |
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| indirect_call_wrapper.h | File | 2.24 KB | 0644 |
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| inet.h | File | 2.64 KB | 0644 |
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| inet_diag.h | File | 2.76 KB | 0644 |
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| inetdevice.h | File | 9.53 KB | 0644 |
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| init.h | File | 12 KB | 0644 |
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| init_ohci1394_dma.h | File | 196 B | 0644 |
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| init_syscalls.h | File | 1.01 KB | 0644 |
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| init_task.h | File | 1.1 KB | 0644 |
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| initrd.h | File | 1008 B | 0644 |
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| inotify.h | File | 628 B | 0644 |
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| input.h | File | 20.81 KB | 0644 |
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| instruction_pointer.h | File | 346 B | 0644 |
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| instrumentation.h | File | 1.85 KB | 0644 |
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| instrumented.h | File | 6.21 KB | 0644 |
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| int_log.h | File | 1.26 KB | 0644 |
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| integrity.h | File | 1.46 KB | 0644 |
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| intel-ish-client-if.h | File | 4.13 KB | 0644 |
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| intel_rapl.h | File | 6 KB | 0644 |
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| intel_tcc.h | File | 466 B | 0644 |
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| intel_th.h | File | 2.44 KB | 0644 |
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| intel_tpmi.h | File | 1.99 KB | 0644 |
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| intel_vsec.h | File | 4.24 KB | 0644 |
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| interconnect-clk.h | File | 648 B | 0644 |
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| interconnect-provider.h | File | 5.53 KB | 0644 |
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| interconnect.h | File | 3.36 KB | 0644 |
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| interrupt.h | File | 27.29 KB | 0644 |
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| interval_tree.h | File | 2.88 KB | 0644 |
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| interval_tree_generic.h | File | 6.7 KB | 0644 |
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| io-64-nonatomic-hi-lo.h | File | 2.41 KB | 0644 |
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| io-64-nonatomic-lo-hi.h | File | 2.41 KB | 0644 |
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| io-mapping.h | File | 4.69 KB | 0644 |
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| io-pgtable.h | File | 10.18 KB | 0644 |
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| io.h | File | 5.51 KB | 0644 |
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| io_uring.h | File | 1.04 KB | 0644 |
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| io_uring_types.h | File | 18.69 KB | 0644 |
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| ioam6.h | File | 226 B | 0644 |
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| ioam6_genl.h | File | 266 B | 0644 |
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| ioam6_iptunnel.h | File | 285 B | 0644 |
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| iocontext.h | File | 4.16 KB | 0644 |
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| iomap.h | File | 15.6 KB | 0644 |
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| iommu-dma.h | File | 2.98 KB | 0644 |
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| iommu-helper.h | File | 1.12 KB | 0644 |
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| iommu.h | File | 53.6 KB | 0644 |
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| iommufd.h | File | 7.34 KB | 0644 |
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| iopoll.h | File | 7.9 KB | 0644 |
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| ioport.h | File | 15.09 KB | 0644 |
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| ioprio.h | File | 2.17 KB | 0644 |
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| ioremap.h | File | 744 B | 0644 |
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| iosys-map.h | File | 16.8 KB | 0644 |
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| iov_iter.h | File | 10.36 KB | 0644 |
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| iova.h | File | 4.2 KB | 0644 |
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| iova_bitmap.h | File | 1.31 KB | 0644 |
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| ip.h | File | 1.56 KB | 0644 |
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| ipack.h | File | 8.69 KB | 0644 |
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| ipc.h | File | 619 B | 0644 |
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| ipc_namespace.h | File | 5.63 KB | 0644 |
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| ipmi.h | File | 11.09 KB | 0644 |
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| ipmi_smi.h | File | 9.83 KB | 0644 |
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| ipv6.h | File | 8.23 KB | 0644 |
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| ipv6_route.h | File | 372 B | 0644 |
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| irq.h | File | 43.49 KB | 0644 |
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| irq_poll.h | File | 575 B | 0644 |
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| irq_sim.h | File | 1.35 KB | 0644 |
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| irq_work.h | File | 2.04 KB | 0644 |
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| irqbypass.h | File | 3.45 KB | 0644 |
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| irqchip.h | File | 2.65 KB | 0644 |
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| irqdesc.h | File | 8.04 KB | 0644 |
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| irqdomain.h | File | 24.75 KB | 0644 |
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| irqdomain_defs.h | File | 842 B | 0644 |
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| irqflags.h | File | 7.96 KB | 0644 |
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| irqflags_types.h | File | 563 B | 0644 |
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| irqhandler.h | File | 284 B | 0644 |
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| irqnr.h | File | 1.5 KB | 0644 |
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| irqreturn.h | File | 529 B | 0644 |
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| isa-dma.h | File | 276 B | 0644 |
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| isa.h | File | 3.33 KB | 0644 |
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| isapnp.h | File | 2.88 KB | 0644 |
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| iscsi_boot_sysfs.h | File | 3.71 KB | 0644 |
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| iscsi_ibft.h | File | 994 B | 0644 |
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| ism.h | File | 2.2 KB | 0644 |
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| iversion.h | File | 10.96 KB | 0644 |
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| jbd2.h | File | 51.56 KB | 0644 |
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| jhash.h | File | 4.56 KB | 0644 |
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| jiffies.h | File | 20.07 KB | 0644 |
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| journal-head.h | File | 2.91 KB | 0644 |
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| joystick.h | File | 437 B | 0644 |
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| jump_label.h | File | 16.45 KB | 0644 |
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| jump_label_ratelimit.h | File | 2.77 KB | 0644 |
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| jz4740-adc.h | File | 1023 B | 0644 |
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| jz4780-nemc.h | File | 976 B | 0644 |
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| kallsyms.h | File | 4.26 KB | 0644 |
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| kasan-checks.h | File | 1.46 KB | 0644 |
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| kasan-enabled.h | File | 639 B | 0644 |
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| kasan-tags.h | File | 487 B | 0644 |
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| kasan.h | File | 20.56 KB | 0644 |
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| kbd_diacr.h | File | 198 B | 0644 |
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| kbd_kern.h | File | 3.6 KB | 0644 |
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| kbuild.h | File | 380 B | 0644 |
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| kconfig.h | File | 2.63 KB | 0644 |
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| kcore.h | File | 611 B | 0644 |
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| kcov.h | File | 4.31 KB | 0644 |
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| kcsan-checks.h | File | 18.63 KB | 0644 |
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| kcsan.h | File | 2.19 KB | 0644 |
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| kdb.h | File | 7.36 KB | 0644 |
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| kdebug.h | File | 487 B | 0644 |
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| kdev_t.h | File | 1.8 KB | 0644 |
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| kern_levels.h | File | 1.57 KB | 0644 |
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| kernel-page-flags.h | File | 522 B | 0644 |
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| kernel.h | File | 12.88 KB | 0644 |
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| kernel_read_file.h | File | 1.62 KB | 0644 |
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| kernel_stat.h | File | 3.63 KB | 0644 |
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| kernelcapi.h | File | 1.45 KB | 0644 |
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| kernfs.h | File | 19.49 KB | 0644 |
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| kexec.h | File | 12.68 KB | 0644 |
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| key-type.h | File | 6.63 KB | 0644 |
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| key.h | File | 16.05 KB | 0644 |
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| keyboard.h | File | 665 B | 0644 |
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| keyctl.h | File | 1.25 KB | 0644 |
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| kfence.h | File | 8.7 KB | 0644 |
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| kfifo.h | File | 28.9 KB | 0644 |
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| kgdb.h | File | 12.02 KB | 0644 |
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| khugepaged.h | File | 1.78 KB | 0644 |
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| klist.h | File | 1.88 KB | 0644 |
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| kmemleak.h | File | 3.24 KB | 0644 |
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| kmod.h | File | 1.02 KB | 0644 |
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| kmsan-checks.h | File | 2.86 KB | 0644 |
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| kmsan.h | File | 11.52 KB | 0644 |
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| kmsan_string.h | File | 681 B | 0644 |
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| kmsan_types.h | File | 906 B | 0644 |
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| kmsg_dump.h | File | 3.12 KB | 0644 |
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| kobj_map.h | File | 545 B | 0644 |
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| kobject.h | File | 6.96 KB | 0644 |
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| kobject_api.h | File | 27 B | 0644 |
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| kobject_ns.h | File | 1.79 KB | 0644 |
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| kprobes.h | File | 16.25 KB | 0644 |
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| kref.h | File | 3.84 KB | 0644 |
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| kref_api.h | File | 24 B | 0644 |
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| ks0108.h | File | 970 B | 0644 |
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| ks8842.h | File | 632 B | 0644 |
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| ks8851_mll.h | File | 472 B | 0644 |
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| ksm.h | File | 4.08 KB | 0644 |
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| kstrtox.h | File | 6.51 KB | 0644 |
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| kthread.h | File | 8.48 KB | 0644 |
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| ktime.h | File | 5.4 KB | 0644 |
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| ktime_api.h | File | 25 B | 0644 |
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| kvm_dirty_ring.h | File | 2.68 KB | 0644 |
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| kvm_host.h | File | 77.92 KB | 0644 |
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| kvm_irqfd.h | File | 1.99 KB | 0644 |
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| kvm_para.h | File | 402 B | 0644 |
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| kvm_types.h | File | 2.6 KB | 0644 |
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| l2tp.h | File | 261 B | 0644 |
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| lantiq.h | File | 365 B | 0644 |
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| lapb.h | File | 1.78 KB | 0644 |
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| latencytop.h | File | 1.06 KB | 0644 |
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| lcd.h | File | 4.18 KB | 0644 |
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| lcm.h | File | 275 B | 0644 |
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| led-class-flash.h | File | 6.08 KB | 0644 |
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| led-class-multicolor.h | File | 2.44 KB | 0644 |
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| led-lm3530.h | File | 3.7 KB | 0644 |
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| leds-bd2802.h | File | 476 B | 0644 |
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| leds-expresswire.h | File | 1.13 KB | 0644 |
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| leds-lp3944.h | File | 950 B | 0644 |
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| leds-lp3952.h | File | 2.35 KB | 0644 |
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| leds-pca9532.h | File | 866 B | 0644 |
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| leds-regulator.h | File | 1.14 KB | 0644 |
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| leds-ti-lmu-common.h | File | 1.12 KB | 0644 |
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| leds.h | File | 23.34 KB | 0644 |
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| libata.h | File | 69.91 KB | 0644 |
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| libfdt.h | File | 202 B | 0644 |
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| libfdt_env.h | File | 491 B | 0644 |
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| libgcc.h | File | 875 B | 0644 |
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| libnvdimm.h | File | 9.93 KB | 0644 |
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| libps2.h | File | 2.47 KB | 0644 |
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| license.h | File | 418 B | 0644 |
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| limits.h | File | 809 B | 0644 |
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| linear_range.h | File | 2.01 KB | 0644 |
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| linkage.h | File | 9.56 KB | 0644 |
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| linkmode.h | File | 2.17 KB | 0644 |
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| linux_logo.h | File | 1.81 KB | 0644 |
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| lis3lv02d.h | File | 5 KB | 0644 |
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| list.h | File | 35.12 KB | 0644 |
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| list_bl.h | File | 4.79 KB | 0644 |
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| list_lru.h | File | 9.8 KB | 0644 |
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| list_nulls.h | File | 4.22 KB | 0644 |
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| list_sort.h | File | 374 B | 0644 |
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| litex.h | File | 2.06 KB | 0644 |
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| livepatch.h | File | 8.26 KB | 0644 |
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| livepatch_sched.h | File | 802 B | 0644 |
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| llc.h | File | 749 B | 0644 |
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| llist.h | File | 10.43 KB | 0644 |
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| llist_api.h | File | 25 B | 0644 |
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| local_lock.h | File | 1.98 KB | 0644 |
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| local_lock_internal.h | File | 4.24 KB | 0644 |
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| lockdep.h | File | 20.9 KB | 0644 |
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| lockdep_api.h | File | 27 B | 0644 |
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| lockdep_types.h | File | 7.61 KB | 0644 |
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| lockref.h | File | 1.65 KB | 0644 |
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| log2.h | File | 6.24 KB | 0644 |
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| logic_iomem.h | File | 2.07 KB | 0644 |
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| logic_pio.h | File | 3.11 KB | 0644 |
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| lp.h | File | 2.76 KB | 0644 |
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| lru_cache.h | File | 11.67 KB | 0644 |
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| lsm_audit.h | File | 3.22 KB | 0644 |
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| lsm_count.h | File | 2.36 KB | 0644 |
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| lsm_hook_defs.h | File | 24.09 KB | 0644 |
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| lsm_hooks.h | File | 4.81 KB | 0644 |
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| lwq.h | File | 3.69 KB | 0644 |
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| lz4.h | File | 26.69 KB | 0644 |
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| lzo.h | File | 1.93 KB | 0644 |
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| mISDNdsp.h | File | 1.19 KB | 0644 |
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| mISDNhw.h | File | 5.39 KB | 0644 |
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| mISDNif.h | File | 14.9 KB | 0644 |
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| memregion.h | File | 1.8 KB | 0644 |
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| mhi.h | File | 27.42 KB | 0644 |
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| mhi_ep.h | File | 10.63 KB | 0644 |
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| micrel_phy.h | File | 2.1 KB | 0644 |
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| mmdebug.h | File | 4.28 KB | 0644 |
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| mmiotrace.h | File | 3.05 KB | 0644 |
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| mmu_context.h | File | 1.13 KB | 0644 |
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| msdos_partition.h | File | 1.62 KB | 0644 |
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| msi.h | File | 22.01 KB | 0644 |
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| msi_api.h | File | 1.93 KB | 0644 |
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| mtio.h | File | 1.29 KB | 0644 |
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| mutex.h | File | 5.82 KB | 0644 |
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| mv643xx_eth.h | File | 2 KB | 0644 |
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| mv643xx_i2c.h | File | 335 B | 0644 |
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| mvebu-pmsu.h | File | 520 B | 0644 |
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| mxm-wmi.h | File | 399 B | 0644 |
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| netdevice_xmit.h | File | 223 B | 0644 |
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| netfilter.h | File | 14.03 KB | 0644 |
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| netfilter_ipv4.h | File | 1.05 KB | 0644 |
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| netlink.h | File | 10.69 KB | 0644 |
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| netpoll.h | File | 2.52 KB | 0644 |
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| nfs_fs_sb.h | File | 11.34 KB | 0644 |
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| nfs_iostat.h | File | 3.92 KB | 0644 |
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| nfs_page.h | File | 8.48 KB | 0644 |
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| nfs_ssc.h | File | 2.01 KB | 0644 |
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| nfsacl.h | File | 1.4 KB | 0644 |
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| nfslocalio.h | File | 3.47 KB | 0644 |
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| nl802154.h | File | 3.87 KB | 0644 |
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| nls.h | File | 3.09 KB | 0644 |
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| nmi.h | File | 7.21 KB | 0644 |
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| node.h | File | 4.67 KB | 0644 |
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| nodemask.h | File | 17.89 KB | 0644 |
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| nodemask_types.h | File | 263 B | 0644 |
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| nospec.h | File | 2.24 KB | 0644 |
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| notifier.h | File | 8.18 KB | 0644 |
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| ns_common.h | File | 284 B | 0644 |
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| nsc_gpio.h | File | 1.42 KB | 0644 |
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| nsproxy.h | File | 3.67 KB | 0644 |
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| ntb.h | File | 52.43 KB | 0644 |
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| ntb_transport.h | File | 3.8 KB | 0644 |
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| nubus.h | File | 5.54 KB | 0644 |
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| numa.h | File | 1.6 KB | 0644 |
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| numa_memblks.h | File | 1.57 KB | 0644 |
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| nvme-auth.h | File | 1.44 KB | 0644 |
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| nvme-fc-driver.h | File | 46.78 KB | 0644 |
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| nvme-fc.h | File | 9.72 KB | 0644 |
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| nvme-keyring.h | File | 732 B | 0644 |
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| nvme-rdma.h | File | 2.31 KB | 0644 |
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| nvme.h | File | 50.91 KB | 0644 |
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| nvmem-consumer.h | File | 6.87 KB | 0644 |
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| nvmem-provider.h | File | 8.03 KB | 0644 |
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| nvram.h | File | 3.47 KB | 0644 |
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| oa_tc6.h | File | 947 B | 0644 |
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| objagg.h | File | 1.94 KB | 0644 |
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| objpool.h | File | 9.58 KB | 0644 |
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| objtool.h | File | 6.62 KB | 0644 |
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| objtool_types.h | File | 2.08 KB | 0644 |
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| of_dma.h | File | 2.3 KB | 0644 |
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| of_iommu.h | File | 671 B | 0644 |
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| of_irq.h | File | 3.83 KB | 0644 |
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| of_mdio.h | File | 3.91 KB | 0644 |
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| of_net.h | File | 1.15 KB | 0644 |
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| of_reserved_mem.h | File | 2.22 KB | 0644 |
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| oid_registry.h | File | 6.02 KB | 0644 |
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| olpc-ec.h | File | 2 KB | 0644 |
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| omap-dma.h | File | 9.54 KB | 0644 |
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| omap-gpmc.h | File | 2.29 KB | 0644 |
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| omap-iommu.h | File | 880 B | 0644 |
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| omap-mailbox.h | File | 272 B | 0644 |
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| omapfb.h | File | 576 B | 0644 |
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| once.h | File | 2.66 KB | 0644 |
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| once_lite.h | File | 926 B | 0644 |
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| oom.h | File | 2.81 KB | 0644 |
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| openvswitch.h | File | 403 B | 0644 |
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| osq_lock.h | File | 912 B | 0644 |
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| overflow.h | File | 14.82 KB | 0644 |
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| packing.h | File | 16 KB | 0644 |
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| padata.h | File | 6.21 KB | 0644 |
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| page-flags-layout.h | File | 3.73 KB | 0644 |
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| page-flags.h | File | 39.15 KB | 0644 |
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| page-isolation.h | File | 1.04 KB | 0644 |
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| page_counter.h | File | 3.21 KB | 0644 |
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| page_ext.h | File | 2.9 KB | 0644 |
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| page_frag_cache.h | File | 1.71 KB | 0644 |
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| page_idle.h | File | 1.95 KB | 0644 |
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| page_owner.h | File | 2.38 KB | 0644 |
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| page_ref.h | File | 7.6 KB | 0644 |
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| page_reporting.h | File | 895 B | 0644 |
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| page_table_check.h | File | 3.74 KB | 0644 |
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| pageblock-flags.h | File | 2.8 KB | 0644 |
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| pagemap.h | File | 51.01 KB | 0644 |
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| pagevec.h | File | 2.62 KB | 0644 |
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| pagewalk.h | File | 7.36 KB | 0644 |
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| panic.h | File | 2.83 KB | 0644 |
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| panic_notifier.h | File | 296 B | 0644 |
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| papr_scm.h | File | 2.17 KB | 0644 |
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| parman.h | File | 2.87 KB | 0644 |
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| parport.h | File | 18.87 KB | 0644 |
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| parport_pc.h | File | 6.62 KB | 0644 |
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| parser.h | File | 1.17 KB | 0644 |
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| part_stat.h | File | 2.38 KB | 0644 |
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| pata_arasan_cf_data.h | File | 1.22 KB | 0644 |
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| patchkey.h | File | 757 B | 0644 |
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| path.h | File | 752 B | 0644 |
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| pch_dma.h | File | 408 B | 0644 |
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| pci-acpi.h | File | 4.18 KB | 0644 |
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| pci-ats.h | File | 2.01 KB | 0644 |
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| pci-bwctrl.h | File | 650 B | 0644 |
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| pci-doe.h | File | 576 B | 0644 |
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| pci-ecam.h | File | 3.43 KB | 0644 |
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| pci-ep-cfs.h | File | 956 B | 0644 |
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| pci-epc.h | File | 12.02 KB | 0644 |
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| pci-epf.h | File | 7.84 KB | 0644 |
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| pci-p2pdma.h | File | 3.01 KB | 0644 |
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| pci-pwrctrl.h | File | 1.74 KB | 0644 |
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| pci-tph.h | File | 1.44 KB | 0644 |
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| pci.h | File | 98.79 KB | 0644 |
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| pci_hotplug.h | File | 4.35 KB | 0644 |
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| pci_ids.h | File | 125.8 KB | 0644 |
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| pcs-lynx.h | File | 442 B | 0644 |
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| pcs-rzn1-miic.h | File | 385 B | 0644 |
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| pe.h | File | 16.73 KB | 0644 |
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| peci-cpu.h | File | 2.29 KB | 0644 |
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| peci.h | File | 3.08 KB | 0644 |
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| percpu-defs.h | File | 17.3 KB | 0644 |
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| percpu-refcount.h | File | 11.22 KB | 0644 |
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| percpu-rwsem.h | File | 4.32 KB | 0644 |
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| percpu.h | File | 5.17 KB | 0644 |
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| percpu_counter.h | File | 6.81 KB | 0644 |
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| perf_event.h | File | 59.38 KB | 0644 |
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| perf_event_api.h | File | 30 B | 0644 |
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| perf_regs.h | File | 1.05 KB | 0644 |
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| personality.h | File | 393 B | 0644 |
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| pfn.h | File | 666 B | 0644 |
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| pfn_t.h | File | 3.21 KB | 0644 |
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| pgalloc_tag.h | File | 6.2 KB | 0644 |
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| pgtable.h | File | 53.52 KB | 0644 |
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| pgtable_api.h | File | 27 B | 0644 |
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| phonet.h | File | 537 B | 0644 |
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| phy.h | File | 77.74 KB | 0644 |
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| phy_fixed.h | File | 1.82 KB | 0644 |
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| phy_led_triggers.h | File | 1.01 KB | 0644 |
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| phy_link_topology.h | File | 1.74 KB | 0644 |
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| phylib_stubs.h | File | 2.64 KB | 0644 |
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| phylink.h | File | 29.83 KB | 0644 |
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| pid.h | File | 9.4 KB | 0644 |
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| pid_namespace.h | File | 3.29 KB | 0644 |
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| pid_types.h | File | 282 B | 0644 |
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| pidfs.h | File | 356 B | 0644 |
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| pim.h | File | 2.67 KB | 0644 |
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| pipe_fs_i.h | File | 10.26 KB | 0644 |
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| pkeys.h | File | 990 B | 0644 |
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| pktcdvd.h | File | 5.7 KB | 0644 |
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| pl320-ipc.h | File | 209 B | 0644 |
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| platform_device.h | File | 13.15 KB | 0644 |
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| platform_profile.h | File | 2.02 KB | 0644 |
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| pldmfw.h | File | 4.91 KB | 0644 |
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| plist.h | File | 8.58 KB | 0644 |
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| plist_types.h | File | 315 B | 0644 |
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| pm-trace.h | File | 940 B | 0644 |
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| pm.h | File | 36.63 KB | 0644 |
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| pm_clock.h | File | 2.59 KB | 0644 |
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| pm_domain.h | File | 16.68 KB | 0644 |
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| pm_opp.h | File | 18.9 KB | 0644 |
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| pm_qos.h | File | 10.41 KB | 0644 |
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| pm_runtime.h | File | 20.47 KB | 0644 |
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| pm_wakeirq.h | File | 1009 B | 0644 |
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| pm_wakeup.h | File | 7.43 KB | 0644 |
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| pmbus.h | File | 2.86 KB | 0644 |
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| pmu.h | File | 2.45 KB | 0644 |
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| pnp.h | File | 14.98 KB | 0644 |
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| poison.h | File | 2.84 KB | 0644 |
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| poll.h | File | 3.86 KB | 0644 |
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| polynomial.h | File | 814 B | 0644 |
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| posix-clock.h | File | 4.52 KB | 0644 |
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| posix-timers.h | File | 7.09 KB | 0644 |
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| posix-timers_types.h | File | 2.21 KB | 0644 |
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| posix_acl.h | File | 4.32 KB | 0644 |
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| posix_acl_xattr.h | File | 1.95 KB | 0644 |
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| power_supply.h | File | 41.09 KB | 0644 |
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| powercap.h | File | 11.98 KB | 0644 |
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| ppp-comp.h | File | 2.97 KB | 0644 |
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| ppp_channel.h | File | 3.04 KB | 0644 |
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| ppp_defs.h | File | 663 B | 0644 |
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| pps_gen_kernel.h | File | 1.95 KB | 0644 |
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| pps_kernel.h | File | 2.94 KB | 0644 |
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| pr.h | File | 1.33 KB | 0644 |
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| prandom.h | File | 1.31 KB | 0644 |
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| preempt.h | File | 15.9 KB | 0644 |
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| prefetch.h | File | 1.55 KB | 0644 |
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| prime_numbers.h | File | 1.35 KB | 0644 |
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| printk.h | File | 23.79 KB | 0644 |
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| prmt.h | File | 342 B | 0644 |
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| proc_fs.h | File | 9.13 KB | 0644 |
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| proc_ns.h | File | 2.52 KB | 0644 |
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| processor.h | File | 1.84 KB | 0644 |
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| profile.h | File | 1.39 KB | 0644 |
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| projid.h | File | 2.22 KB | 0644 |
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| property.h | File | 19.91 KB | 0644 |
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| pruss_driver.h | File | 4.44 KB | 0644 |
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| psci.h | File | 1.52 KB | 0644 |
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| pseudo_fs.h | File | 401 B | 0644 |
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| psi.h | File | 1.78 KB | 0644 |
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| psi_types.h | File | 4.94 KB | 0644 |
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| psp-platform-access.h | File | 1.86 KB | 0644 |
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| psp-sev.h | File | 27.29 KB | 0644 |
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| psp-tee.h | File | 2.65 KB | 0644 |
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| psp.h | File | 697 B | 0644 |
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| pstore.h | File | 7.77 KB | 0644 |
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| pstore_blk.h | File | 1.53 KB | 0644 |
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| pstore_ram.h | File | 883 B | 0644 |
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| pstore_zone.h | File | 2.28 KB | 0644 |
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| ptdump.h | File | 815 B | 0644 |
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| pti.h | File | 251 B | 0644 |
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| ptp_classify.h | File | 6.89 KB | 0644 |
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| ptp_clock_kernel.h | File | 16.23 KB | 0644 |
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| ptp_kvm.h | File | 505 B | 0644 |
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| ptp_mock.h | File | 670 B | 0644 |
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| ptp_pch.h | File | 666 B | 0644 |
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| ptr_ring.h | File | 16.54 KB | 0644 |
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| ptrace.h | File | 16.79 KB | 0644 |
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| ptrace_api.h | File | 26 B | 0644 |
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| purgatory.h | File | 590 B | 0644 |
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| pvclock_gtod.h | File | 548 B | 0644 |
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| pwm.h | File | 18.78 KB | 0644 |
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| pwm_backlight.h | File | 649 B | 0644 |
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| pxa168_eth.h | File | 728 B | 0644 |
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| pxa2xx_ssp.h | File | 11.13 KB | 0644 |
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| qnx6_fs.h | File | 3.27 KB | 0644 |
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| quota.h | File | 18.76 KB | 0644 |
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| quotaops.h | File | 10.27 KB | 0644 |
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| radix-tree.h | File | 15.95 KB | 0644 |
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| raid_class.h | File | 2.01 KB | 0644 |
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| ramfs.h | File | 746 B | 0644 |
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| random.h | File | 4.97 KB | 0644 |
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| randomize_kstack.h | File | 3.96 KB | 0644 |
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| range.h | File | 1.07 KB | 0644 |
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| ras.h | File | 1.53 KB | 0644 |
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| ratelimit.h | File | 1.72 KB | 0644 |
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| ratelimit_types.h | File | 1.33 KB | 0644 |
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| rational.h | File | 639 B | 0644 |
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| rbtree.h | File | 11.32 KB | 0644 |
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| rbtree_augmented.h | File | 10.18 KB | 0644 |
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| rbtree_latch.h | File | 6.73 KB | 0644 |
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| rbtree_types.h | File | 946 B | 0644 |
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| rcu_node_tree.h | File | 3.73 KB | 0644 |
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| rcu_notifier.h | File | 1.09 KB | 0644 |
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| rcu_segcblist.h | File | 10.77 KB | 0644 |
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| rcu_sync.h | File | 1.41 KB | 0644 |
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| rculist.h | File | 30.59 KB | 0644 |
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| rculist_bl.h | File | 3.29 KB | 0644 |
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| rculist_nulls.h | File | 6.6 KB | 0644 |
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| rcupdate.h | File | 42.48 KB | 0644 |
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| rcupdate_trace.h | File | 3.27 KB | 0644 |
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| rcupdate_wait.h | File | 2.55 KB | 0644 |
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| rcuref.h | File | 4.66 KB | 0644 |
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| rcutiny.h | File | 4.55 KB | 0644 |
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| rcutree.h | File | 4.34 KB | 0644 |
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| rcuwait.h | File | 2.32 KB | 0644 |
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| rcuwait_api.h | File | 27 B | 0644 |
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| reboot-mode.h | File | 600 B | 0644 |
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| reboot.h | File | 5.3 KB | 0644 |
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| reciprocal_div.h | File | 3.28 KB | 0644 |
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| ref_tracker.h | File | 2.35 KB | 0644 |
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| refcount.h | File | 11.83 KB | 0644 |
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| refcount_api.h | File | 28 B | 0644 |
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| refcount_types.h | File | 512 B | 0644 |
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| regmap.h | File | 72.65 KB | 0644 |
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| rtmutex.h | File | 3.38 KB | 0644 |
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| rwlock_api_smp.h | File | 7.85 KB | 0644 |
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| rwlock_types.h | File | 1.77 KB | 0644 |
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| rwsem.h | File | 8.6 KB | 0644 |
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| sched_clock.h | File | 1.46 KB | 0644 |
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| scmi_imx_protocol.h | File | 1.54 KB | 0644 |
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| scpi_protocol.h | File | 2.67 KB | 0644 |
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| scx200.h | File | 1.82 KB | 0644 |
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| scx200_gpio.h | File | 2.38 KB | 0644 |
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| seccomp.h | File | 2.99 KB | 0644 |
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| seccomp_types.h | File | 834 B | 0644 |
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| semaphore.h | File | 1.58 KB | 0644 |
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| seq_buf.h | File | 4.24 KB | 0644 |
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| seq_file.h | File | 10.18 KB | 0644 |
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| seq_file_net.h | File | 787 B | 0644 |
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| seqlock.h | File | 37.14 KB | 0644 |
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| seqlock_api.h | File | 27 B | 0644 |
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| seqlock_types.h | File | 3.11 KB | 0644 |
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| serial.h | File | 1.03 KB | 0644 |
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| serial_8250.h | File | 7.38 KB | 0644 |
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| serial_bcm63xx.h | File | 4.73 KB | 0644 |
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| serial_core.h | File | 39.9 KB | 0644 |
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| serial_s3c.h | File | 9.54 KB | 0644 |
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| serial_sci.h | File | 1.62 KB | 0644 |
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| serio.h | File | 4.41 KB | 0644 |
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| sfp.h | File | 16.54 KB | 0644 |
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| sh_clk.h | File | 5.96 KB | 0644 |
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| shm.h | File | 835 B | 0644 |
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| shmem_fs.h | File | 7.74 KB | 0644 |
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| shrinker.h | File | 4.87 KB | 0644 |
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| signal.h | File | 13.79 KB | 0644 |
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| signalfd.h | File | 817 B | 0644 |
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| siox.h | File | 2.26 KB | 0644 |
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| sizes.h | File | 1.68 KB | 0644 |
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| skbuff.h | File | 148.33 KB | 0644 |
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| skbuff_ref.h | File | 1.74 KB | 0644 |
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| skmsg.h | File | 13.94 KB | 0644 |
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| slimbus.h | File | 6.94 KB | 0644 |
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| smp.h | File | 8.03 KB | 0644 |
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| smp_types.h | File | 1.35 KB | 0644 |
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| smpboot.h | File | 1.68 KB | 0644 |
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| smsc911x.h | File | 1.63 KB | 0644 |
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| sock_diag.h | File | 2.42 KB | 0644 |
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| socket.h | File | 15.52 KB | 0644 |
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| sockptr.h | File | 4.05 KB | 0644 |
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| softirq.h | File | 29 B | 0644 |
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| sony-laptop.h | File | 1.41 KB | 0644 |
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| sonypi.h | File | 1.71 KB | 0644 |
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| sort.h | File | 348 B | 0644 |
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| sound.h | File | 685 B | 0644 |
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| soundcard.h | File | 1.59 KB | 0644 |
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| spinlock.h | File | 17.55 KB | 0644 |
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| spinlock_api.h | File | 28 B | 0644 |
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| spinlock_api_smp.h | File | 5.23 KB | 0644 |
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| spinlock_api_up.h | File | 3.38 KB | 0644 |
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| spinlock_rt.h | File | 4.12 KB | 0644 |
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| spinlock_types.h | File | 1.78 KB | 0644 |
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| spinlock_types_raw.h | File | 1.69 KB | 0644 |
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| spinlock_types_up.h | File | 732 B | 0644 |
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| spinlock_up.h | File | 2.08 KB | 0644 |
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| splice.h | File | 3.72 KB | 0644 |
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| spmi.h | File | 5.85 KB | 0644 |
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| sprintf.h | File | 1.24 KB | 0644 |
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| stackleak.h | File | 2.36 KB | 0644 |
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| stackprotector.h | File | 859 B | 0644 |
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| stacktrace.h | File | 4 KB | 0644 |
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| start_kernel.h | File | 345 B | 0644 |
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| statfs.h | File | 1.78 KB | 0644 |
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| static_call.h | File | 10.66 KB | 0644 |
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| static_call_types.h | File | 2.74 KB | 0644 |
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| stddef.h | File | 3.17 KB | 0644 |
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| stm.h | File | 4.6 KB | 0644 |
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| stmmac.h | File | 7.79 KB | 0644 |
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| stmp3xxx_rtc_wdt.h | File | 331 B | 0644 |
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| stmp_device.h | File | 412 B | 0644 |
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| stop_machine.h | File | 4.94 KB | 0644 |
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| string.h | File | 17.88 KB | 0644 |
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| string_choices.h | File | 2.22 KB | 0644 |
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| string_helpers.h | File | 3.29 KB | 0644 |
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| stringhash.h | File | 2.65 KB | 0644 |
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| stringify.h | File | 395 B | 0644 |
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| sungem_phy.h | File | 3.97 KB | 0644 |
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| sunserialcore.h | File | 1.08 KB | 0644 |
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| sunxi-rsb.h | File | 2.89 KB | 0644 |
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| surface_acpi_notify.h | File | 1.07 KB | 0644 |
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| suspend.h | File | 20.63 KB | 0644 |
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| svga.h | File | 3.75 KB | 0644 |
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| swait.h | File | 9.47 KB | 0644 |
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| swait_api.h | File | 25 B | 0644 |
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| swap.h | File | 21.47 KB | 0644 |
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| swap_slots.h | File | 721 B | 0644 |
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| swapfile.h | File | 450 B | 0644 |
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| swapops.h | File | 16.33 KB | 0644 |
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| swiotlb.h | File | 9.09 KB | 0644 |
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| switchtec.h | File | 10.92 KB | 0644 |
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| sxgbe_platform.h | File | 1.23 KB | 0644 |
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| sync_core.h | File | 1.03 KB | 0644 |
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| sync_file.h | File | 1.57 KB | 0644 |
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| synclink.h | File | 989 B | 0644 |
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| sys.h | File | 960 B | 0644 |
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| syscall_user_dispatch.h | File | 1.31 KB | 0644 |
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| syscall_user_dispatch_types.h | File | 388 B | 0644 |
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| syscalls.h | File | 56.4 KB | 0644 |
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| syscalls_api.h | File | 28 B | 0644 |
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| syscore_ops.h | File | 633 B | 0644 |
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| sysctl.h | File | 9.6 KB | 0644 |
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| sysfb.h | File | 2.87 KB | 0644 |
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| sysfs.h | File | 24.5 KB | 0644 |
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| syslog.h | File | 1.29 KB | 0644 |
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| sysrq.h | File | 1.95 KB | 0644 |
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| sysv_fs.h | File | 9.03 KB | 0644 |
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| t10-pi.h | File | 1.85 KB | 0644 |
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| task_io_accounting.h | File | 1.13 KB | 0644 |
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| task_io_accounting_ops.h | File | 2.55 KB | 0644 |
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| task_work.h | File | 1.06 KB | 0644 |
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| taskstats_kern.h | File | 957 B | 0644 |
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| tboot.h | File | 3.26 KB | 0644 |
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| tc.h | File | 3.46 KB | 0644 |
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| tca6416_keypad.h | File | 683 B | 0644 |
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| tcp.h | File | 20.67 KB | 0644 |
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| tee_core.h | File | 9.67 KB | 0644 |
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| tee_drv.h | File | 8.94 KB | 0644 |
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| tegra-icc.h | File | 1.86 KB | 0644 |
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| termios_internal.h | File | 1.48 KB | 0644 |
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| text-patching.h | File | 349 B | 0644 |
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| textsearch.h | File | 4.73 KB | 0644 |
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| textsearch_fsm.h | File | 1.19 KB | 0644 |
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| tfrc.h | File | 1.68 KB | 0644 |
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| thermal.h | File | 11.63 KB | 0644 |
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| thread_info.h | File | 7.75 KB | 0644 |
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| threads.h | File | 1.31 KB | 0644 |
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| thunderbolt.h | File | 21.38 KB | 0644 |
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| ti-emif-sram.h | File | 4.75 KB | 0644 |
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| ti_wilink_st.h | File | 13.47 KB | 0644 |
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| tick.h | File | 9.89 KB | 0644 |
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| tifm.h | File | 4.66 KB | 0644 |
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| timb_dma.h | File | 1.17 KB | 0644 |
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| timb_gpio.h | File | 717 B | 0644 |
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| time.h | File | 3.14 KB | 0644 |
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| time32.h | File | 1.75 KB | 0644 |
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| time64.h | File | 4.68 KB | 0644 |
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| time_namespace.h | File | 4.02 KB | 0644 |
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| timecounter.h | File | 4.38 KB | 0644 |
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| timekeeper_internal.h | File | 5.72 KB | 0644 |
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| timekeeping.h | File | 8.82 KB | 0644 |
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| timer.h | File | 7.4 KB | 0644 |
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| timer_types.h | File | 477 B | 0644 |
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| timerfd.h | File | 508 B | 0644 |
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| timeriomem-rng.h | File | 432 B | 0644 |
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| timerqueue.h | File | 1.18 KB | 0644 |
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| timerqueue_types.h | File | 335 B | 0644 |
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| timex.h | File | 6.41 KB | 0644 |
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| tnum.h | File | 4.15 KB | 0644 |
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| topology.h | File | 7.33 KB | 0644 |
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| torture.h | File | 4.91 KB | 0644 |
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| toshiba.h | File | 460 B | 0644 |
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| tpm.h | File | 14.74 KB | 0644 |
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| tpm_command.h | File | 847 B | 0644 |
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| tpm_eventlog.h | File | 6.53 KB | 0644 |
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| trace.h | File | 2.77 KB | 0644 |
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| trace_clock.h | File | 667 B | 0644 |
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| trace_events.h | File | 30.39 KB | 0644 |
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| trace_recursion.h | File | 5 KB | 0644 |
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| trace_seq.h | File | 4.52 KB | 0644 |
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| tracefs.h | File | 3.79 KB | 0644 |
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| tracepoint-defs.h | File | 2.46 KB | 0644 |
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| tracepoint.h | File | 20.39 KB | 0644 |
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| transport_class.h | File | 2.58 KB | 0644 |
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| ts-nbus.h | File | 532 B | 0644 |
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| tsacct_kern.h | File | 1.2 KB | 0644 |
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| tsm.h | File | 3.78 KB | 0644 |
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| tty.h | File | 17.21 KB | 0644 |
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| tty_buffer.h | File | 1.29 KB | 0644 |
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| tty_driver.h | File | 22.2 KB | 0644 |
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| tty_flip.h | File | 2.68 KB | 0644 |
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| tty_ldisc.h | File | 10.29 KB | 0644 |
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| tty_port.h | File | 9.21 KB | 0644 |
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| turris-omnia-mcu-interface.h | File | 11.13 KB | 0644 |
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| typecheck.h | File | 782 B | 0644 |
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| types.h | File | 6.04 KB | 0644 |
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| u64_stats_sync.h | File | 5.45 KB | 0644 |
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| u64_stats_sync_api.h | File | 34 B | 0644 |
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| uacce.h | File | 4.37 KB | 0644 |
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| uaccess.h | File | 18.83 KB | 0644 |
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| ubsan.h | File | 307 B | 0644 |
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| ucs2_string.h | File | 740 B | 0644 |
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| udp.h | File | 6.09 KB | 0644 |
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| uidgid.h | File | 4.27 KB | 0644 |
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| uidgid_types.h | File | 241 B | 0644 |
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| uio.h | File | 12.13 KB | 0644 |
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| uio_driver.h | File | 5.25 KB | 0644 |
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| umh.h | File | 1.82 KB | 0644 |
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| unaligned.h | File | 3.14 KB | 0644 |
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| unicode.h | File | 2.05 KB | 0644 |
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| union_find.h | File | 1.14 KB | 0644 |
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| units.h | File | 2.88 KB | 0644 |
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| unroll.h | File | 1.77 KB | 0644 |
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| uprobes.h | File | 9.44 KB | 0644 |
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| usb.h | File | 78.94 KB | 0644 |
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| usb_usual.h | File | 3.58 KB | 0644 |
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| usbdevice_fs.h | File | 2.18 KB | 0644 |
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| user-return-notifier.h | File | 1.18 KB | 0644 |
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| user.h | File | 22 B | 0644 |
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| user_events.h | File | 1.68 KB | 0644 |
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| user_namespace.h | File | 6.42 KB | 0644 |
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| userfaultfd_k.h | File | 13.22 KB | 0644 |
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| usermode_driver.h | File | 515 B | 0644 |
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| util_macros.h | File | 2.51 KB | 0644 |
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| uts.h | File | 388 B | 0644 |
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| utsname.h | File | 1.8 KB | 0644 |
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| uuid.h | File | 2.49 KB | 0644 |
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| vbox_utils.h | File | 1.75 KB | 0644 |
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| vdpa.h | File | 22.11 KB | 0644 |
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| verification.h | File | 1.86 KB | 0644 |
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| vermagic.h | File | 1.24 KB | 0644 |
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| vexpress.h | File | 297 B | 0644 |
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| vfio.h | File | 13.34 KB | 0644 |
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| vfio_pci_core.h | File | 5.59 KB | 0644 |
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| vfs.h | File | 116 B | 0644 |
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| vga_switcheroo.h | File | 8.62 KB | 0644 |
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| vgaarb.h | File | 2.81 KB | 0644 |
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| vhost_iotlb.h | File | 1.43 KB | 0644 |
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| via-core.h | File | 6.57 KB | 0644 |
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| via.h | File | 932 B | 0644 |
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| via_i2c.h | File | 844 B | 0644 |
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| videodev2.h | File | 2.7 KB | 0644 |
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| virtio.h | File | 10.57 KB | 0644 |
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| virtio_anchor.h | File | 507 B | 0644 |
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| virtio_byteorder.h | File | 1.46 KB | 0644 |
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| virtio_caif.h | File | 513 B | 0644 |
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| virtio_config.h | File | 18.11 KB | 0644 |
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| virtio_dma_buf.h | File | 1.12 KB | 0644 |
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| virtio_net.h | File | 6.53 KB | 0644 |
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| virtio_pci_admin.h | File | 1.47 KB | 0644 |
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| virtio_pci_legacy.h | File | 1.37 KB | 0644 |
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| virtio_pci_modern.h | File | 4.39 KB | 0644 |
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| virtio_ring.h | File | 3.2 KB | 0644 |
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| virtio_vsock.h | File | 7.44 KB | 0644 |
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| vm_event_item.h | File | 4.29 KB | 0644 |
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| vmalloc.h | File | 10.61 KB | 0644 |
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| vmcore_info.h | File | 3.08 KB | 0644 |
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| vmpressure.h | File | 1.68 KB | 0644 |
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| vmstat.h | File | 16.78 KB | 0644 |
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| vmw_vmci_api.h | File | 2.88 KB | 0644 |
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| vmw_vmci_defs.h | File | 29.93 KB | 0644 |
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| vringh.h | File | 9.35 KB | 0644 |
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| vt.h | File | 611 B | 0644 |
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| vt_buffer.h | File | 1.13 KB | 0644 |
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| vt_kern.h | File | 5.32 KB | 0644 |
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| vtime.h | File | 4.47 KB | 0644 |
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| w1.h | File | 8.93 KB | 0644 |
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| wait.h | File | 43.03 KB | 0644 |
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| wait_api.h | File | 24 B | 0644 |
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| wait_bit.h | File | 22.51 KB | 0644 |
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| watch_queue.h | File | 3.83 KB | 0644 |
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| watchdog.h | File | 8.21 KB | 0644 |
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| win_minmax.h | File | 831 B | 0644 |
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| wireless.h | File | 1.56 KB | 0644 |
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| wkup_m3_ipc.h | File | 1.58 KB | 0644 |
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| wm97xx.h | File | 10.44 KB | 0644 |
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| wmi.h | File | 3.36 KB | 0644 |
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| wordpart.h | File | 1.5 KB | 0644 |
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| workqueue.h | File | 29.84 KB | 0644 |
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| workqueue_api.h | File | 29 B | 0644 |
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| workqueue_types.h | File | 564 B | 0644 |
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| writeback.h | File | 12.67 KB | 0644 |
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| ww_mutex.h | File | 13.38 KB | 0644 |
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| wwan.h | File | 6 KB | 0644 |
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| xarray.h | File | 58.06 KB | 0644 |
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| xattr.h | File | 4.5 KB | 0644 |
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| xxhash.h | File | 8.27 KB | 0644 |
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| xz.h | File | 15.66 KB | 0644 |
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| yam.h | File | 2.18 KB | 0644 |
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| zconf.h | File | 1.73 KB | 0644 |
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| zlib.h | File | 28.11 KB | 0644 |
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| zorro.h | File | 3.57 KB | 0644 |
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| zpool.h | File | 2.84 KB | 0644 |
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| zsmalloc.h | File | 1.71 KB | 0644 |
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| zstd.h | File | 22.47 KB | 0644 |
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| zstd_errors.h | File | 3.09 KB | 0644 |
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| zstd_lib.h | File | 144.05 KB | 0644 |
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| zswap.h | File | 1.82 KB | 0644 |
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| zutil.h | File | 2.73 KB | 0644 |
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