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	Version: linux-6.0.1 spark-3.0.0 hadoop-3.2.0-src hadoop-3.3.0-src spark-2.4.7 linux-4.15.13 hadoop-2.7.4-src Revert   Change

 /* SPDX-License-Identifier: GPL-2.0 */
 /* Copyright (C) B.A.T.M.A.N. contributors:
  *
  * Marek Lindner, Simon Wunderlich
  */
 
 #ifndef _NET_BATMAN_ADV_TYPES_H_
 #define _NET_BATMAN_ADV_TYPES_H_
 
 #ifndef _NET_BATMAN_ADV_MAIN_H_
 #error only "main.h" can be included directly
 #endif
 
 #include <linux/average.h>
 #include <linux/bitops.h>
 #include <linux/compiler.h>
 #include <linux/if.h>
 #include <linux/if_ether.h>
 #include <linux/kref.h>
 #include <linux/mutex.h>
 #include <linux/netdevice.h>
 #include <linux/netlink.h>
 #include <linux/sched.h> /* for linux/wait.h */
 #include <linux/skbuff.h>
 #include <linux/spinlock.h>
 #include <linux/timer.h>
 #include <linux/types.h>
 #include <linux/wait.h>
 #include <linux/workqueue.h>
 #include <uapi/linux/batadv_packet.h>
 #include <uapi/linux/batman_adv.h>
 
 #ifdef CONFIG_BATMAN_ADV_DAT
 
 /**
  * typedef batadv_dat_addr_t - type used for all DHT addresses
  *
  * If it is changed, BATADV_DAT_ADDR_MAX is changed as well.
  *
  * *Please be careful: batadv_dat_addr_t must be UNSIGNED*
  */
 typedef u16 batadv_dat_addr_t;
 
 #endif /* CONFIG_BATMAN_ADV_DAT */
 
 /**
  * enum batadv_dhcp_recipient - dhcp destination
  */
 enum batadv_dhcp_recipient {
     /** @BATADV_DHCP_NO: packet is not a dhcp message */
     BATADV_DHCP_NO = 0,
 
     /** @BATADV_DHCP_TO_SERVER: dhcp message is directed to a server */
     BATADV_DHCP_TO_SERVER,
 
     /** @BATADV_DHCP_TO_CLIENT: dhcp message is directed to a client */
     BATADV_DHCP_TO_CLIENT,
 };
 
 /**
  * BATADV_TT_REMOTE_MASK - bitmask selecting the flags that are sent over the
  *  wire only
  */
 #define BATADV_TT_REMOTE_MASK   0x00FF
 
 /**
  * BATADV_TT_SYNC_MASK - bitmask of the flags that need to be kept in sync
  *  among the nodes. These flags are used to compute the global/local CRC
  */
 #define BATADV_TT_SYNC_MASK 0x00F0
 
 /**
  * struct batadv_hard_iface_bat_iv - per hard-interface B.A.T.M.A.N. IV data
  */
 struct batadv_hard_iface_bat_iv {
     /** @ogm_buff: buffer holding the OGM packet */
     unsigned char *ogm_buff;
 
     /** @ogm_buff_len: length of the OGM packet buffer */
     int ogm_buff_len;
 
     /** @ogm_seqno: OGM sequence number - used to identify each OGM */
     atomic_t ogm_seqno;
 
     /** @ogm_buff_mutex: lock protecting ogm_buff and ogm_buff_len */
     struct mutex ogm_buff_mutex;
 };
 
 /**
  * enum batadv_v_hard_iface_flags - interface flags useful to B.A.T.M.A.N. V
  */
 enum batadv_v_hard_iface_flags {
     /**
      * @BATADV_FULL_DUPLEX: tells if the connection over this link is
      *  full-duplex
      */
     BATADV_FULL_DUPLEX  = BIT(0),
 
     /**
      * @BATADV_WARNING_DEFAULT: tells whether we have warned the user that
      *  no throughput data is available for this interface and that default
      *  values are assumed.
      */
     BATADV_WARNING_DEFAULT  = BIT(1),
 };
 
 /**
  * struct batadv_hard_iface_bat_v - per hard-interface B.A.T.M.A.N. V data
  */
 struct batadv_hard_iface_bat_v {
     /** @elp_interval: time interval between two ELP transmissions */
     atomic_t elp_interval;
 
     /** @elp_seqno: current ELP sequence number */
     atomic_t elp_seqno;
 
     /** @elp_skb: base skb containing the ELP message to send */
     struct sk_buff *elp_skb;
 
     /** @elp_wq: workqueue used to schedule ELP transmissions */
     struct delayed_work elp_wq;
 
     /** @aggr_wq: workqueue used to transmit queued OGM packets */
     struct delayed_work aggr_wq;
 
     /** @aggr_list: queue for to be aggregated OGM packets */
     struct sk_buff_head aggr_list;
 
     /** @aggr_len: size of the OGM aggregate (excluding ethernet header) */
     unsigned int aggr_len;
 
     /**
      * @throughput_override: throughput override to disable link
      *  auto-detection
      */
     atomic_t throughput_override;
 
     /** @flags: interface specific flags */
     u8 flags;
 };
 
 /**
  * enum batadv_hard_iface_wifi_flags - Flags describing the wifi configuration
  *  of a batadv_hard_iface
  */
 enum batadv_hard_iface_wifi_flags {
     /** @BATADV_HARDIF_WIFI_WEXT_DIRECT: it is a wext wifi device */
     BATADV_HARDIF_WIFI_WEXT_DIRECT = BIT(0),
 
     /** @BATADV_HARDIF_WIFI_CFG80211_DIRECT: it is a cfg80211 wifi device */
     BATADV_HARDIF_WIFI_CFG80211_DIRECT = BIT(1),
 
     /**
      * @BATADV_HARDIF_WIFI_WEXT_INDIRECT: link device is a wext wifi device
      */
     BATADV_HARDIF_WIFI_WEXT_INDIRECT = BIT(2),
 
     /**
      * @BATADV_HARDIF_WIFI_CFG80211_INDIRECT: link device is a cfg80211 wifi
      * device
      */
     BATADV_HARDIF_WIFI_CFG80211_INDIRECT = BIT(3),
 };
 
 /**
  * struct batadv_hard_iface - network device known to batman-adv
  */
 struct batadv_hard_iface {
     /** @list: list node for batadv_hardif_list */
     struct list_head list;
 
     /** @if_status: status of the interface for batman-adv */
     char if_status;
 
     /**
      * @num_bcasts: number of payload re-broadcasts on this interface (ARQ)
      */
     u8 num_bcasts;
 
     /**
      * @wifi_flags: flags whether this is (directly or indirectly) a wifi
      *  interface
      */
     u32 wifi_flags;
 
     /** @net_dev: pointer to the net_device */
     struct net_device *net_dev;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /**
      * @batman_adv_ptype: packet type describing packets that should be
      * processed by batman-adv for this interface
      */
     struct packet_type batman_adv_ptype;
 
     /**
      * @soft_iface: the batman-adv interface which uses this network
      *  interface
      */
     struct net_device *soft_iface;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 
     /**
      * @hop_penalty: penalty which will be applied to the tq-field
      * of an OGM received via this interface
      */
     atomic_t hop_penalty;
 
     /** @bat_iv: per hard-interface B.A.T.M.A.N. IV data */
     struct batadv_hard_iface_bat_iv bat_iv;
 
 #ifdef CONFIG_BATMAN_ADV_BATMAN_V
     /** @bat_v: per hard-interface B.A.T.M.A.N. V data */
     struct batadv_hard_iface_bat_v bat_v;
 #endif
 
     /**
      * @neigh_list: list of unique single hop neighbors via this interface
      */
     struct hlist_head neigh_list;
 
     /** @neigh_list_lock: lock protecting neigh_list */
     spinlock_t neigh_list_lock;
 };
 
 /**
  * struct batadv_orig_ifinfo_bat_iv - B.A.T.M.A.N. IV private orig_ifinfo
  *  members
  */
 struct batadv_orig_ifinfo_bat_iv {
     /**
      * @bcast_own: bitfield which counts the number of our OGMs this
      * orig_node rebroadcasted "back" to us  (relative to last_real_seqno)
      */
     DECLARE_BITMAP(bcast_own, BATADV_TQ_LOCAL_WINDOW_SIZE);
 
     /** @bcast_own_sum: sum of bcast_own */
     u8 bcast_own_sum;
 };
 
 /**
  * struct batadv_orig_ifinfo - originator info per outgoing interface
  */
 struct batadv_orig_ifinfo {
     /** @list: list node for &batadv_orig_node.ifinfo_list */
     struct hlist_node list;
 
     /** @if_outgoing: pointer to outgoing hard-interface */
     struct batadv_hard_iface *if_outgoing;
 
     /** @router: router that should be used to reach this originator */
     struct batadv_neigh_node __rcu *router;
 
     /** @last_real_seqno: last and best known sequence number */
     u32 last_real_seqno;
 
     /** @last_ttl: ttl of last received packet */
     u8 last_ttl;
 
     /** @last_seqno_forwarded: seqno of the OGM which was forwarded last */
     u32 last_seqno_forwarded;
 
     /** @batman_seqno_reset: time when the batman seqno window was reset */
     unsigned long batman_seqno_reset;
 
     /** @bat_iv: B.A.T.M.A.N. IV private structure */
     struct batadv_orig_ifinfo_bat_iv bat_iv;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * struct batadv_frag_table_entry - head in the fragment buffer table
  */
 struct batadv_frag_table_entry {
     /** @fragment_list: head of list with fragments */
     struct hlist_head fragment_list;
 
     /** @lock: lock to protect the list of fragments */
     spinlock_t lock;
 
     /** @timestamp: time (jiffie) of last received fragment */
     unsigned long timestamp;
 
     /** @seqno: sequence number of the fragments in the list */
     u16 seqno;
 
     /** @size: accumulated size of packets in list */
     u16 size;
 
     /** @total_size: expected size of the assembled packet */
     u16 total_size;
 };
 
 /**
  * struct batadv_frag_list_entry - entry in a list of fragments
  */
 struct batadv_frag_list_entry {
     /** @list: list node information */
     struct hlist_node list;
 
     /** @skb: fragment */
     struct sk_buff *skb;
 
     /** @no: fragment number in the set */
     u8 no;
 };
 
 /**
  * struct batadv_vlan_tt - VLAN specific TT attributes
  */
 struct batadv_vlan_tt {
     /** @crc: CRC32 checksum of the entries belonging to this vlan */
     u32 crc;
 
     /** @num_entries: number of TT entries for this VLAN */
     atomic_t num_entries;
 };
 
 /**
  * struct batadv_orig_node_vlan - VLAN specific data per orig_node
  */
 struct batadv_orig_node_vlan {
     /** @vid: the VLAN identifier */
     unsigned short vid;
 
     /** @tt: VLAN specific TT attributes */
     struct batadv_vlan_tt tt;
 
     /** @list: list node for &batadv_orig_node.vlan_list */
     struct hlist_node list;
 
     /**
      * @refcount: number of context where this object is currently in use
      */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in a RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members
  */
 struct batadv_orig_bat_iv {
     /**
      * @ogm_cnt_lock: lock protecting &batadv_orig_ifinfo_bat_iv.bcast_own,
      * &batadv_orig_ifinfo_bat_iv.bcast_own_sum,
      * &batadv_neigh_ifinfo_bat_iv.bat_iv.real_bits and
      * &batadv_neigh_ifinfo_bat_iv.real_packet_count
      */
     spinlock_t ogm_cnt_lock;
 };
 
 /**
  * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh
  */
 struct batadv_orig_node {
     /** @orig: originator ethernet address */
     u8 orig[ETH_ALEN];
 
     /** @ifinfo_list: list for routers per outgoing interface */
     struct hlist_head ifinfo_list;
 
     /**
      * @last_bonding_candidate: pointer to last ifinfo of last used router
      */
     struct batadv_orig_ifinfo *last_bonding_candidate;
 
 #ifdef CONFIG_BATMAN_ADV_DAT
     /** @dat_addr: address of the orig node in the distributed hash */
     batadv_dat_addr_t dat_addr;
 #endif
 
     /** @last_seen: time when last packet from this node was received */
     unsigned long last_seen;
 
     /**
      * @bcast_seqno_reset: time when the broadcast seqno window was reset
      */
     unsigned long bcast_seqno_reset;
 
 #ifdef CONFIG_BATMAN_ADV_MCAST
     /**
      * @mcast_handler_lock: synchronizes mcast-capability and -flag changes
      */
     spinlock_t mcast_handler_lock;
 
     /** @mcast_flags: multicast flags announced by the orig node */
     u8 mcast_flags;
 
     /**
      * @mcast_want_all_unsnoopables_node: a list node for the
      *  mcast.want_all_unsnoopables list
      */
     struct hlist_node mcast_want_all_unsnoopables_node;
 
     /**
      * @mcast_want_all_ipv4_node: a list node for the mcast.want_all_ipv4
      *  list
      */
     struct hlist_node mcast_want_all_ipv4_node;
     /**
      * @mcast_want_all_ipv6_node: a list node for the mcast.want_all_ipv6
      *  list
      */
     struct hlist_node mcast_want_all_ipv6_node;
 
     /**
      * @mcast_want_all_rtr4_node: a list node for the mcast.want_all_rtr4
      *  list
      */
     struct hlist_node mcast_want_all_rtr4_node;
     /**
      * @mcast_want_all_rtr6_node: a list node for the mcast.want_all_rtr6
      *  list
      */
     struct hlist_node mcast_want_all_rtr6_node;
 #endif
 
     /** @capabilities: announced capabilities of this originator */
     unsigned long capabilities;
 
     /**
      * @capa_initialized: bitfield to remember whether a capability was
      *  initialized
      */
     unsigned long capa_initialized;
 
     /** @last_ttvn: last seen translation table version number */
     atomic_t last_ttvn;
 
     /** @tt_buff: last tt changeset this node received from the orig node */
     unsigned char *tt_buff;
 
     /**
      * @tt_buff_len: length of the last tt changeset this node received
      *  from the orig node
      */
     s16 tt_buff_len;
 
     /** @tt_buff_lock: lock that protects tt_buff and tt_buff_len */
     spinlock_t tt_buff_lock;
 
     /**
      * @tt_lock: avoids concurrent read from and write to the table. Table
      *  update is made up of two operations (data structure update and
      *  metadata -CRC/TTVN-recalculation) and they have to be executed
      *  atomically in order to avoid another thread to read the
      *  table/metadata between those.
      */
     spinlock_t tt_lock;
 
     /**
      * @bcast_bits: bitfield containing the info which payload broadcast
      *  originated from this orig node this host already has seen (relative
      *  to last_bcast_seqno)
      */
     DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
 
     /**
      * @last_bcast_seqno: last broadcast sequence number received by this
      *  host
      */
     u32 last_bcast_seqno;
 
     /**
      * @neigh_list: list of potential next hop neighbor towards this orig
      *  node
      */
     struct hlist_head neigh_list;
 
     /**
      * @neigh_list_lock: lock protecting neigh_list, ifinfo_list,
      *  last_bonding_candidate and router
      */
     spinlock_t neigh_list_lock;
 
     /** @hash_entry: hlist node for &batadv_priv.orig_hash */
     struct hlist_node hash_entry;
 
     /** @bat_priv: pointer to soft_iface this orig node belongs to */
     struct batadv_priv *bat_priv;
 
     /** @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno */
     spinlock_t bcast_seqno_lock;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 
 #ifdef CONFIG_BATMAN_ADV_NC
     /** @in_coding_list: list of nodes this orig can hear */
     struct list_head in_coding_list;
 
     /** @out_coding_list: list of nodes that can hear this orig */
     struct list_head out_coding_list;
 
     /** @in_coding_list_lock: protects in_coding_list */
     spinlock_t in_coding_list_lock;
 
     /** @out_coding_list_lock: protects out_coding_list */
     spinlock_t out_coding_list_lock;
 #endif
 
     /** @fragments: array with heads for fragment chains */
     struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT];
 
     /**
      * @vlan_list: a list of orig_node_vlan structs, one per VLAN served by
      *  the originator represented by this object
      */
     struct hlist_head vlan_list;
 
     /** @vlan_list_lock: lock protecting vlan_list */
     spinlock_t vlan_list_lock;
 
     /** @bat_iv: B.A.T.M.A.N. IV private structure */
     struct batadv_orig_bat_iv bat_iv;
 };
 
 /**
  * enum batadv_orig_capabilities - orig node capabilities
  */
 enum batadv_orig_capabilities {
     /**
      * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table
      *  enabled
      */
     BATADV_ORIG_CAPA_HAS_DAT,
 
     /** @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled */
     BATADV_ORIG_CAPA_HAS_NC,
 
     /** @BATADV_ORIG_CAPA_HAS_TT: orig node has tt capability */
     BATADV_ORIG_CAPA_HAS_TT,
 
     /**
      * @BATADV_ORIG_CAPA_HAS_MCAST: orig node has some multicast capability
      *  (= orig node announces a tvlv of type BATADV_TVLV_MCAST)
      */
     BATADV_ORIG_CAPA_HAS_MCAST,
 };
 
 /**
  * struct batadv_gw_node - structure for orig nodes announcing gw capabilities
  */
 struct batadv_gw_node {
     /** @list: list node for &batadv_priv_gw.list */
     struct hlist_node list;
 
     /** @orig_node: pointer to corresponding orig node */
     struct batadv_orig_node *orig_node;
 
     /** @bandwidth_down: advertised uplink download bandwidth */
     u32 bandwidth_down;
 
     /** @bandwidth_up: advertised uplink upload bandwidth */
     u32 bandwidth_up;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 };
 
 DECLARE_EWMA(throughput, 10, 8)
 
 /**
  * struct batadv_hardif_neigh_node_bat_v - B.A.T.M.A.N. V private neighbor
  *  information
  */
 struct batadv_hardif_neigh_node_bat_v {
     /** @throughput: ewma link throughput towards this neighbor */
     struct ewma_throughput throughput;
 
     /** @elp_interval: time interval between two ELP transmissions */
     u32 elp_interval;
 
     /** @elp_latest_seqno: latest and best known ELP sequence number */
     u32 elp_latest_seqno;
 
     /**
      * @last_unicast_tx: when the last unicast packet has been sent to this
      *  neighbor
      */
     unsigned long last_unicast_tx;
 
     /** @metric_work: work queue callback item for metric update */
     struct work_struct metric_work;
 };
 
 /**
  * struct batadv_hardif_neigh_node - unique neighbor per hard-interface
  */
 struct batadv_hardif_neigh_node {
     /** @list: list node for &batadv_hard_iface.neigh_list */
     struct hlist_node list;
 
     /** @addr: the MAC address of the neighboring interface */
     u8 addr[ETH_ALEN];
 
     /**
      * @orig: the address of the originator this neighbor node belongs to
      */
     u8 orig[ETH_ALEN];
 
     /** @if_incoming: pointer to incoming hard-interface */
     struct batadv_hard_iface *if_incoming;
 
     /** @last_seen: when last packet via this neighbor was received */
     unsigned long last_seen;
 
 #ifdef CONFIG_BATMAN_ADV_BATMAN_V
     /** @bat_v: B.A.T.M.A.N. V private data */
     struct batadv_hardif_neigh_node_bat_v bat_v;
 #endif
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in a RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * struct batadv_neigh_node - structure for single hops neighbors
  */
 struct batadv_neigh_node {
     /** @list: list node for &batadv_orig_node.neigh_list */
     struct hlist_node list;
 
     /** @orig_node: pointer to corresponding orig_node */
     struct batadv_orig_node *orig_node;
 
     /** @addr: the MAC address of the neighboring interface */
     u8 addr[ETH_ALEN];
 
     /** @ifinfo_list: list for routing metrics per outgoing interface */
     struct hlist_head ifinfo_list;
 
     /** @ifinfo_lock: lock protecting ifinfo_list and its members */
     spinlock_t ifinfo_lock;
 
     /** @if_incoming: pointer to incoming hard-interface */
     struct batadv_hard_iface *if_incoming;
 
     /** @last_seen: when last packet via this neighbor was received */
     unsigned long last_seen;
 
     /** @hardif_neigh: hardif_neigh of this neighbor */
     struct batadv_hardif_neigh_node *hardif_neigh;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * struct batadv_neigh_ifinfo_bat_iv - neighbor information per outgoing
  *  interface for B.A.T.M.A.N. IV
  */
 struct batadv_neigh_ifinfo_bat_iv {
     /** @tq_recv: ring buffer of received TQ values from this neigh node */
     u8 tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE];
 
     /** @tq_index: ring buffer index */
     u8 tq_index;
 
     /**
      * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv)
      */
     u8 tq_avg;
 
     /**
      * @real_bits: bitfield containing the number of OGMs received from this
      *  neigh node (relative to orig_node->last_real_seqno)
      */
     DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
 
     /** @real_packet_count: counted result of real_bits */
     u8 real_packet_count;
 };
 
 /**
  * struct batadv_neigh_ifinfo_bat_v - neighbor information per outgoing
  *  interface for B.A.T.M.A.N. V
  */
 struct batadv_neigh_ifinfo_bat_v {
     /**
      * @throughput: last throughput metric received from originator via this
      *  neigh
      */
     u32 throughput;
 
     /** @last_seqno: last sequence number known for this neighbor */
     u32 last_seqno;
 };
 
 /**
  * struct batadv_neigh_ifinfo - neighbor information per outgoing interface
  */
 struct batadv_neigh_ifinfo {
     /** @list: list node for &batadv_neigh_node.ifinfo_list */
     struct hlist_node list;
 
     /** @if_outgoing: pointer to outgoing hard-interface */
     struct batadv_hard_iface *if_outgoing;
 
     /** @bat_iv: B.A.T.M.A.N. IV private structure */
     struct batadv_neigh_ifinfo_bat_iv bat_iv;
 
 #ifdef CONFIG_BATMAN_ADV_BATMAN_V
     /** @bat_v: B.A.T.M.A.N. V private data */
     struct batadv_neigh_ifinfo_bat_v bat_v;
 #endif
 
     /** @last_ttl: last received ttl from this neigh node */
     u8 last_ttl;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in a RCU-safe manner */
     struct rcu_head rcu;
 };
 
 #ifdef CONFIG_BATMAN_ADV_BLA
 
 /**
  * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression
  */
 struct batadv_bcast_duplist_entry {
     /** @orig: mac address of orig node originating the broadcast */
     u8 orig[ETH_ALEN];
 
     /** @crc: crc32 checksum of broadcast payload */
     __be32 crc;
 
     /** @entrytime: time when the broadcast packet was received */
     unsigned long entrytime;
 };
 #endif
 
 /**
  * enum batadv_counters - indices for traffic counters
  */
 enum batadv_counters {
     /** @BATADV_CNT_TX: transmitted payload traffic packet counter */
     BATADV_CNT_TX,
 
     /** @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter */
     BATADV_CNT_TX_BYTES,
 
     /**
      * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet
      *  counter
      */
     BATADV_CNT_TX_DROPPED,
 
     /** @BATADV_CNT_RX: received payload traffic packet counter */
     BATADV_CNT_RX,
 
     /** @BATADV_CNT_RX_BYTES: received payload traffic bytes counter */
     BATADV_CNT_RX_BYTES,
 
     /** @BATADV_CNT_FORWARD: forwarded payload traffic packet counter */
     BATADV_CNT_FORWARD,
 
     /**
      * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter
      */
     BATADV_CNT_FORWARD_BYTES,
 
     /**
      * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet
      *  counter
      */
     BATADV_CNT_MGMT_TX,
 
     /**
      * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes
      *  counter
      */
     BATADV_CNT_MGMT_TX_BYTES,
 
     /**
      * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter
      */
     BATADV_CNT_MGMT_RX,
 
     /**
      * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes
      *  counter
      */
     BATADV_CNT_MGMT_RX_BYTES,
 
     /** @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter */
     BATADV_CNT_FRAG_TX,
 
     /**
      * @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter
      */
     BATADV_CNT_FRAG_TX_BYTES,
 
     /** @BATADV_CNT_FRAG_RX: received fragment traffic packet counter */
     BATADV_CNT_FRAG_RX,
 
     /**
      * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter
      */
     BATADV_CNT_FRAG_RX_BYTES,
 
     /** @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter */
     BATADV_CNT_FRAG_FWD,
 
     /**
      * @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter
      */
     BATADV_CNT_FRAG_FWD_BYTES,
 
     /**
      * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter
      */
     BATADV_CNT_TT_REQUEST_TX,
 
     /** @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter */
     BATADV_CNT_TT_REQUEST_RX,
 
     /**
      * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet
      *  counter
      */
     BATADV_CNT_TT_RESPONSE_TX,
 
     /**
      * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter
      */
     BATADV_CNT_TT_RESPONSE_RX,
 
     /**
      * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet
      *  counter
      */
     BATADV_CNT_TT_ROAM_ADV_TX,
 
     /**
      * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter
      */
     BATADV_CNT_TT_ROAM_ADV_RX,
 
 #ifdef CONFIG_BATMAN_ADV_DAT
     /**
      * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter
      */
     BATADV_CNT_DAT_GET_TX,
 
     /** @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter */
     BATADV_CNT_DAT_GET_RX,
 
     /**
      * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter
      */
     BATADV_CNT_DAT_PUT_TX,
 
     /** @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter */
     BATADV_CNT_DAT_PUT_RX,
 
     /**
      * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic
      *  packet counter
      */
     BATADV_CNT_DAT_CACHED_REPLY_TX,
 #endif
 
 #ifdef CONFIG_BATMAN_ADV_NC
     /**
      * @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter
      */
     BATADV_CNT_NC_CODE,
 
     /**
      * @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes
      *  counter
      */
     BATADV_CNT_NC_CODE_BYTES,
 
     /**
      * @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet
      *  counter
      */
     BATADV_CNT_NC_RECODE,
 
     /**
      * @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes
      *  counter
      */
     BATADV_CNT_NC_RECODE_BYTES,
 
     /**
      * @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc
      *  decoding
      */
     BATADV_CNT_NC_BUFFER,
 
     /**
      * @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter
      */
     BATADV_CNT_NC_DECODE,
 
     /**
      * @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes
      *  counter
      */
     BATADV_CNT_NC_DECODE_BYTES,
 
     /**
      * @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic
      *  packet counter
      */
     BATADV_CNT_NC_DECODE_FAILED,
 
     /**
      * @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in
      *  promisc mode.
      */
     BATADV_CNT_NC_SNIFFED,
 #endif
 
     /** @BATADV_CNT_NUM: number of traffic counters */
     BATADV_CNT_NUM,
 };
 
 /**
  * struct batadv_priv_tt - per mesh interface translation table data
  */
 struct batadv_priv_tt {
     /** @vn: translation table version number */
     atomic_t vn;
 
     /**
      * @ogm_append_cnt: counter of number of OGMs containing the local tt
      *  diff
      */
     atomic_t ogm_append_cnt;
 
     /** @local_changes: changes registered in an originator interval */
     atomic_t local_changes;
 
     /**
      * @changes_list: tracks tt local changes within an originator interval
      */
     struct list_head changes_list;
 
     /** @local_hash: local translation table hash table */
     struct batadv_hashtable *local_hash;
 
     /** @global_hash: global translation table hash table */
     struct batadv_hashtable *global_hash;
 
     /** @req_list: list of pending & unanswered tt_requests */
     struct hlist_head req_list;
 
     /**
      * @roam_list: list of the last roaming events of each client limiting
      *  the number of roaming events to avoid route flapping
      */
     struct list_head roam_list;
 
     /** @changes_list_lock: lock protecting changes_list */
     spinlock_t changes_list_lock;
 
     /** @req_list_lock: lock protecting req_list */
     spinlock_t req_list_lock;
 
     /** @roam_list_lock: lock protecting roam_list */
     spinlock_t roam_list_lock;
 
     /** @last_changeset: last tt changeset this host has generated */
     unsigned char *last_changeset;
 
     /**
      * @last_changeset_len: length of last tt changeset this host has
      *  generated
      */
     s16 last_changeset_len;
 
     /**
      * @last_changeset_lock: lock protecting last_changeset &
      *  last_changeset_len
      */
     spinlock_t last_changeset_lock;
 
     /**
      * @commit_lock: prevents from executing a local TT commit while reading
      *  the local table. The local TT commit is made up of two operations
      *  (data structure update and metadata -CRC/TTVN- recalculation) and
      *  they have to be executed atomically in order to avoid another thread
      *  to read the table/metadata between those.
      */
     spinlock_t commit_lock;
 
     /** @work: work queue callback item for translation table purging */
     struct delayed_work work;
 };
 
 #ifdef CONFIG_BATMAN_ADV_BLA
 
 /**
  * struct batadv_priv_bla - per mesh interface bridge loop avoidance data
  */
 struct batadv_priv_bla {
     /** @num_requests: number of bla requests in flight */
     atomic_t num_requests;
 
     /**
      * @claim_hash: hash table containing mesh nodes this host has claimed
      */
     struct batadv_hashtable *claim_hash;
 
     /**
      * @backbone_hash: hash table containing all detected backbone gateways
      */
     struct batadv_hashtable *backbone_hash;
 
     /** @loopdetect_addr: MAC address used for own loopdetection frames */
     u8 loopdetect_addr[ETH_ALEN];
 
     /**
      * @loopdetect_lasttime: time when the loopdetection frames were sent
      */
     unsigned long loopdetect_lasttime;
 
     /**
      * @loopdetect_next: how many periods to wait for the next loopdetect
      *  process
      */
     atomic_t loopdetect_next;
 
     /**
      * @bcast_duplist: recently received broadcast packets array (for
      *  broadcast duplicate suppression)
      */
     struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE];
 
     /**
      * @bcast_duplist_curr: index of last broadcast packet added to
      *  bcast_duplist
      */
     int bcast_duplist_curr;
 
     /**
      * @bcast_duplist_lock: lock protecting bcast_duplist &
      *  bcast_duplist_curr
      */
     spinlock_t bcast_duplist_lock;
 
     /** @claim_dest: local claim data (e.g. claim group) */
     struct batadv_bla_claim_dst claim_dest;
 
     /** @work: work queue callback item for cleanups & bla announcements */
     struct delayed_work work;
 };
 #endif
 
 #ifdef CONFIG_BATMAN_ADV_DEBUG
 
 /**
  * struct batadv_priv_debug_log - debug logging data
  */
 struct batadv_priv_debug_log {
     /** @log_buff: buffer holding the logs (ring buffer) */
     char log_buff[BATADV_LOG_BUF_LEN];
 
     /** @log_start: index of next character to read */
     unsigned long log_start;
 
     /** @log_end: index of next character to write */
     unsigned long log_end;
 
     /** @lock: lock protecting log_buff, log_start & log_end */
     spinlock_t lock;
 
     /** @queue_wait: log reader's wait queue */
     wait_queue_head_t queue_wait;
 };
 #endif
 
 /**
  * struct batadv_priv_gw - per mesh interface gateway data
  */
 struct batadv_priv_gw {
     /** @gateway_list: list of available gateway nodes */
     struct hlist_head gateway_list;
 
     /** @list_lock: lock protecting gateway_list, curr_gw, generation */
     spinlock_t list_lock;
 
     /** @curr_gw: pointer to currently selected gateway node */
     struct batadv_gw_node __rcu *curr_gw;
 
     /** @generation: current (generation) sequence number */
     unsigned int generation;
 
     /**
      * @mode: gateway operation: off, client or server (see batadv_gw_modes)
      */
     atomic_t mode;
 
     /** @sel_class: gateway selection class (applies if gw_mode client) */
     atomic_t sel_class;
 
     /**
      * @bandwidth_down: advertised uplink download bandwidth (if gw_mode
      *  server)
      */
     atomic_t bandwidth_down;
 
     /**
      * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server)
      */
     atomic_t bandwidth_up;
 
     /** @reselect: bool indicating a gateway re-selection is in progress */
     atomic_t reselect;
 };
 
 /**
  * struct batadv_priv_tvlv - per mesh interface tvlv data
  */
 struct batadv_priv_tvlv {
     /**
      * @container_list: list of registered tvlv containers to be sent with
      *  each OGM
      */
     struct hlist_head container_list;
 
     /** @handler_list: list of the various tvlv content handlers */
     struct hlist_head handler_list;
 
     /** @container_list_lock: protects tvlv container list access */
     spinlock_t container_list_lock;
 
     /** @handler_list_lock: protects handler list access */
     spinlock_t handler_list_lock;
 };
 
 #ifdef CONFIG_BATMAN_ADV_DAT
 
 /**
  * struct batadv_priv_dat - per mesh interface DAT private data
  */
 struct batadv_priv_dat {
     /** @addr: node DAT address */
     batadv_dat_addr_t addr;
 
     /** @hash: hashtable representing the local ARP cache */
     struct batadv_hashtable *hash;
 
     /** @work: work queue callback item for cache purging */
     struct delayed_work work;
 };
 #endif
 
 #ifdef CONFIG_BATMAN_ADV_MCAST
 /**
  * struct batadv_mcast_querier_state - IGMP/MLD querier state when bridged
  */
 struct batadv_mcast_querier_state {
     /** @exists: whether a querier exists in the mesh */
     unsigned char exists:1;
 
     /**
      * @shadowing: if a querier exists, whether it is potentially shadowing
      *  multicast listeners (i.e. querier is behind our own bridge segment)
      */
     unsigned char shadowing:1;
 };
 
 /**
  * struct batadv_mcast_mla_flags - flags for the querier, bridge and tvlv state
  */
 struct batadv_mcast_mla_flags {
     /** @querier_ipv4: the current state of an IGMP querier in the mesh */
     struct batadv_mcast_querier_state querier_ipv4;
 
     /** @querier_ipv6: the current state of an MLD querier in the mesh */
     struct batadv_mcast_querier_state querier_ipv6;
 
     /** @enabled: whether the multicast tvlv is currently enabled */
     unsigned char enabled:1;
 
     /** @bridged: whether the soft interface has a bridge on top */
     unsigned char bridged:1;
 
     /** @tvlv_flags: the flags we have last sent in our mcast tvlv */
     u8 tvlv_flags;
 };
 
 /**
  * struct batadv_priv_mcast - per mesh interface mcast data
  */
 struct batadv_priv_mcast {
     /**
      * @mla_list: list of multicast addresses we are currently announcing
      *  via TT
      */
     struct hlist_head mla_list; /* see __batadv_mcast_mla_update() */
 
     /**
      * @want_all_unsnoopables_list: a list of orig_nodes wanting all
      *  unsnoopable multicast traffic
      */
     struct hlist_head want_all_unsnoopables_list;
 
     /**
      * @want_all_ipv4_list: a list of orig_nodes wanting all IPv4 multicast
      *  traffic
      */
     struct hlist_head want_all_ipv4_list;
 
     /**
      * @want_all_ipv6_list: a list of orig_nodes wanting all IPv6 multicast
      *  traffic
      */
     struct hlist_head want_all_ipv6_list;
 
     /**
      * @want_all_rtr4_list: a list of orig_nodes wanting all routable IPv4
      *  multicast traffic
      */
     struct hlist_head want_all_rtr4_list;
 
     /**
      * @want_all_rtr6_list: a list of orig_nodes wanting all routable IPv6
      *  multicast traffic
      */
     struct hlist_head want_all_rtr6_list;
 
     /**
      * @mla_flags: flags for the querier, bridge and tvlv state
      */
     struct batadv_mcast_mla_flags mla_flags;
 
     /**
      * @mla_lock: a lock protecting mla_list and mla_flags
      */
     spinlock_t mla_lock;
 
     /**
      * @num_want_all_unsnoopables: number of nodes wanting unsnoopable IP
      *  traffic
      */
     atomic_t num_want_all_unsnoopables;
 
     /** @num_want_all_ipv4: counter for items in want_all_ipv4_list */
     atomic_t num_want_all_ipv4;
 
     /** @num_want_all_ipv6: counter for items in want_all_ipv6_list */
     atomic_t num_want_all_ipv6;
 
     /** @num_want_all_rtr4: counter for items in want_all_rtr4_list */
     atomic_t num_want_all_rtr4;
 
     /** @num_want_all_rtr6: counter for items in want_all_rtr6_list */
     atomic_t num_want_all_rtr6;
 
     /**
      * @want_lists_lock: lock for protecting modifications to mcasts
      *  want_all_{unsnoopables,ipv4,ipv6}_list (traversals are rcu-locked)
      */
     spinlock_t want_lists_lock;
 
     /** @work: work queue callback item for multicast TT and TVLV updates */
     struct delayed_work work;
 };
 #endif
 
 /**
  * struct batadv_priv_nc - per mesh interface network coding private data
  */
 struct batadv_priv_nc {
     /** @work: work queue callback item for cleanup */
     struct delayed_work work;
 
     /**
      * @min_tq: only consider neighbors for encoding if neigh_tq > min_tq
      */
     u8 min_tq;
 
     /**
      * @max_fwd_delay: maximum packet forward delay to allow coding of
      *  packets
      */
     u32 max_fwd_delay;
 
     /**
      * @max_buffer_time: buffer time for sniffed packets used to decoding
      */
     u32 max_buffer_time;
 
     /**
      * @timestamp_fwd_flush: timestamp of last forward packet queue flush
      */
     unsigned long timestamp_fwd_flush;
 
     /**
      * @timestamp_sniffed_purge: timestamp of last sniffed packet queue
      *  purge
      */
     unsigned long timestamp_sniffed_purge;
 
     /**
      * @coding_hash: Hash table used to buffer skbs while waiting for
      *  another incoming skb to code it with. Skbs are added to the buffer
      *  just before being forwarded in routing.c
      */
     struct batadv_hashtable *coding_hash;
 
     /**
      * @decoding_hash: Hash table used to buffer skbs that might be needed
      *  to decode a received coded skb. The buffer is used for 1) skbs
      *  arriving on the soft-interface; 2) skbs overheard on the
      *  hard-interface; and 3) skbs forwarded by batman-adv.
      */
     struct batadv_hashtable *decoding_hash;
 };
 
 /**
  * struct batadv_tp_unacked - unacked packet meta-information
  *
  * This struct is supposed to represent a buffer unacked packet. However, since
  * the purpose of the TP meter is to count the traffic only, there is no need to
  * store the entire sk_buff, the starting offset and the length are enough
  */
 struct batadv_tp_unacked {
     /** @seqno: seqno of the unacked packet */
     u32 seqno;
 
     /** @len: length of the packet */
     u16 len;
 
     /** @list: list node for &batadv_tp_vars.unacked_list */
     struct list_head list;
 };
 
 /**
  * enum batadv_tp_meter_role - Modus in tp meter session
  */
 enum batadv_tp_meter_role {
     /** @BATADV_TP_RECEIVER: Initialized as receiver */
     BATADV_TP_RECEIVER,
 
     /** @BATADV_TP_SENDER: Initialized as sender */
     BATADV_TP_SENDER
 };
 
 /**
  * struct batadv_tp_vars - tp meter private variables per session
  */
 struct batadv_tp_vars {
     /** @list: list node for &bat_priv.tp_list */
     struct hlist_node list;
 
     /** @timer: timer for ack (receiver) and retry (sender) */
     struct timer_list timer;
 
     /** @bat_priv: pointer to the mesh object */
     struct batadv_priv *bat_priv;
 
     /** @start_time: start time in jiffies */
     unsigned long start_time;
 
     /** @other_end: mac address of remote */
     u8 other_end[ETH_ALEN];
 
     /** @role: receiver/sender modi */
     enum batadv_tp_meter_role role;
 
     /** @sending: sending binary semaphore: 1 if sending, 0 is not */
     atomic_t sending;
 
     /** @reason: reason for a stopped session */
     enum batadv_tp_meter_reason reason;
 
     /** @finish_work: work item for the finishing procedure */
     struct delayed_work finish_work;
 
     /** @test_length: test length in milliseconds */
     u32 test_length;
 
     /** @session: TP session identifier */
     u8 session[2];
 
     /** @icmp_uid: local ICMP "socket" index */
     u8 icmp_uid;
 
     /* sender variables */
 
     /** @dec_cwnd: decimal part of the cwnd used during linear growth */
     u16 dec_cwnd;
 
     /** @cwnd: current size of the congestion window */
     u32 cwnd;
 
     /** @cwnd_lock: lock do protect @cwnd & @dec_cwnd */
     spinlock_t cwnd_lock;
 
     /**
      * @ss_threshold: Slow Start threshold. Once cwnd exceeds this value the
      *  connection switches to the Congestion Avoidance state
      */
     u32 ss_threshold;
 
     /** @last_acked: last acked byte */
     atomic_t last_acked;
 
     /** @last_sent: last sent byte, not yet acked */
     u32 last_sent;
 
     /** @tot_sent: amount of data sent/ACKed so far */
     atomic64_t tot_sent;
 
     /** @dup_acks: duplicate ACKs counter */
     atomic_t dup_acks;
 
     /** @fast_recovery: true if in Fast Recovery mode */
     unsigned char fast_recovery:1;
 
     /** @recover: last sent seqno when entering Fast Recovery */
     u32 recover;
 
     /** @rto: sender timeout */
     u32 rto;
 
     /** @srtt: smoothed RTT scaled by 2^3 */
     u32 srtt;
 
     /** @rttvar: RTT variation scaled by 2^2 */
     u32 rttvar;
 
     /**
      * @more_bytes: waiting queue anchor when waiting for more ack/retry
      *  timeout
      */
     wait_queue_head_t more_bytes;
 
     /** @prerandom_offset: offset inside the prerandom buffer */
     u32 prerandom_offset;
 
     /** @prerandom_lock: spinlock protecting access to prerandom_offset */
     spinlock_t prerandom_lock;
 
     /* receiver variables */
 
     /** @last_recv: last in-order received packet */
     u32 last_recv;
 
     /** @unacked_list: list of unacked packets (meta-info only) */
     struct list_head unacked_list;
 
     /** @unacked_lock: protect unacked_list */
     spinlock_t unacked_lock;
 
     /** @last_recv_time: time (jiffies) a msg was received */
     unsigned long last_recv_time;
 
     /** @refcount: number of context where the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * struct batadv_softif_vlan - per VLAN attributes set
  */
 struct batadv_softif_vlan {
     /** @bat_priv: pointer to the mesh object */
     struct batadv_priv *bat_priv;
 
     /** @vid: VLAN identifier */
     unsigned short vid;
 
     /** @ap_isolation: AP isolation state */
     atomic_t ap_isolation;      /* boolean */
 
     /** @tt: TT private attributes (VLAN specific) */
     struct batadv_vlan_tt tt;
 
     /** @list: list node for &bat_priv.softif_vlan_list */
     struct hlist_node list;
 
     /**
      * @refcount: number of context where this object is currently in use
      */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in a RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * struct batadv_priv_bat_v - B.A.T.M.A.N. V per soft-interface private data
  */
 struct batadv_priv_bat_v {
     /** @ogm_buff: buffer holding the OGM packet */
     unsigned char *ogm_buff;
 
     /** @ogm_buff_len: length of the OGM packet buffer */
     int ogm_buff_len;
 
     /** @ogm_seqno: OGM sequence number - used to identify each OGM */
     atomic_t ogm_seqno;
 
     /** @ogm_buff_mutex: lock protecting ogm_buff and ogm_buff_len */
     struct mutex ogm_buff_mutex;
 
     /** @ogm_wq: workqueue used to schedule OGM transmissions */
     struct delayed_work ogm_wq;
 };
 
 /**
  * struct batadv_priv - per mesh interface data
  */
 struct batadv_priv {
     /**
      * @mesh_state: current status of the mesh
      *  (inactive/active/deactivating)
      */
     atomic_t mesh_state;
 
     /** @soft_iface: net device which holds this struct as private data */
     struct net_device *soft_iface;
 
     /**
      * @bat_counters: mesh internal traffic statistic counters (see
      *  batadv_counters)
      */
     u64 __percpu *bat_counters; /* Per cpu counters */
 
     /**
      * @aggregated_ogms: bool indicating whether OGM aggregation is enabled
      */
     atomic_t aggregated_ogms;
 
     /** @bonding: bool indicating whether traffic bonding is enabled */
     atomic_t bonding;
 
     /**
      * @fragmentation: bool indicating whether traffic fragmentation is
      *  enabled
      */
     atomic_t fragmentation;
 
     /**
      * @packet_size_max: max packet size that can be transmitted via
      *  multiple fragmented skbs or a single frame if fragmentation is
      *  disabled
      */
     atomic_t packet_size_max;
 
     /**
      * @frag_seqno: incremental counter to identify chains of egress
      *  fragments
      */
     atomic_t frag_seqno;
 
 #ifdef CONFIG_BATMAN_ADV_BLA
     /**
      * @bridge_loop_avoidance: bool indicating whether bridge loop
      *  avoidance is enabled
      */
     atomic_t bridge_loop_avoidance;
 #endif
 
 #ifdef CONFIG_BATMAN_ADV_DAT
     /**
      * @distributed_arp_table: bool indicating whether distributed ARP table
      *  is enabled
      */
     atomic_t distributed_arp_table;
 #endif
 
 #ifdef CONFIG_BATMAN_ADV_MCAST
     /**
      * @multicast_mode: Enable or disable multicast optimizations on this
      *  node's sender/originating side
      */
     atomic_t multicast_mode;
 
     /**
      * @multicast_fanout: Maximum number of packet copies to generate for a
      *  multicast-to-unicast conversion
      */
     atomic_t multicast_fanout;
 #endif
 
     /** @orig_interval: OGM broadcast interval in milliseconds */
     atomic_t orig_interval;
 
     /**
      * @hop_penalty: penalty which will be applied to an OGM's tq-field on
      *  every hop
      */
     atomic_t hop_penalty;
 
 #ifdef CONFIG_BATMAN_ADV_DEBUG
     /** @log_level: configured log level (see batadv_dbg_level) */
     atomic_t log_level;
 #endif
 
     /**
      * @isolation_mark: the skb->mark value used to match packets for AP
      *  isolation
      */
     u32 isolation_mark;
 
     /**
      * @isolation_mark_mask: bitmask identifying the bits in skb->mark to be
      *  used for the isolation mark
      */
     u32 isolation_mark_mask;
 
     /** @bcast_seqno: last sent broadcast packet sequence number */
     atomic_t bcast_seqno;
 
     /**
      * @bcast_queue_left: number of remaining buffered broadcast packet
      *  slots
      */
     atomic_t bcast_queue_left;
 
     /** @batman_queue_left: number of remaining OGM packet slots */
     atomic_t batman_queue_left;
 
     /** @forw_bat_list: list of aggregated OGMs that will be forwarded */
     struct hlist_head forw_bat_list;
 
     /**
      * @forw_bcast_list: list of broadcast packets that will be
      *  rebroadcasted
      */
     struct hlist_head forw_bcast_list;
 
     /** @tp_list: list of tp sessions */
     struct hlist_head tp_list;
 
     /** @orig_hash: hash table containing mesh participants (orig nodes) */
     struct batadv_hashtable *orig_hash;
 
     /** @forw_bat_list_lock: lock protecting forw_bat_list */
     spinlock_t forw_bat_list_lock;
 
     /** @forw_bcast_list_lock: lock protecting forw_bcast_list */
     spinlock_t forw_bcast_list_lock;
 
     /** @tp_list_lock: spinlock protecting @tp_list */
     spinlock_t tp_list_lock;
 
     /** @tp_num: number of currently active tp sessions */
     atomic_t tp_num;
 
     /** @orig_work: work queue callback item for orig node purging */
     struct delayed_work orig_work;
 
     /**
      * @primary_if: one of the hard-interfaces assigned to this mesh
      *  interface becomes the primary interface
      */
     struct batadv_hard_iface __rcu *primary_if;  /* rcu protected pointer */
 
     /** @algo_ops: routing algorithm used by this mesh interface */
     struct batadv_algo_ops *algo_ops;
 
     /**
      * @softif_vlan_list: a list of softif_vlan structs, one per VLAN
      *  created on top of the mesh interface represented by this object
      */
     struct hlist_head softif_vlan_list;
 
     /** @softif_vlan_list_lock: lock protecting softif_vlan_list */
     spinlock_t softif_vlan_list_lock;
 
 #ifdef CONFIG_BATMAN_ADV_BLA
     /** @bla: bridge loop avoidance data */
     struct batadv_priv_bla bla;
 #endif
 
 #ifdef CONFIG_BATMAN_ADV_DEBUG
     /** @debug_log: holding debug logging relevant data */
     struct batadv_priv_debug_log *debug_log;
 #endif
 
     /** @gw: gateway data */
     struct batadv_priv_gw gw;
 
     /** @tt: translation table data */
     struct batadv_priv_tt tt;
 
     /** @tvlv: type-version-length-value data */
     struct batadv_priv_tvlv tvlv;
 
 #ifdef CONFIG_BATMAN_ADV_DAT
     /** @dat: distributed arp table data */
     struct batadv_priv_dat dat;
 #endif
 
 #ifdef CONFIG_BATMAN_ADV_MCAST
     /** @mcast: multicast data */
     struct batadv_priv_mcast mcast;
 #endif
 
 #ifdef CONFIG_BATMAN_ADV_NC
     /**
      * @network_coding: bool indicating whether network coding is enabled
      */
     atomic_t network_coding;
 
     /** @nc: network coding data */
     struct batadv_priv_nc nc;
 #endif /* CONFIG_BATMAN_ADV_NC */
 
 #ifdef CONFIG_BATMAN_ADV_BATMAN_V
     /** @bat_v: B.A.T.M.A.N. V per soft-interface private data */
     struct batadv_priv_bat_v bat_v;
 #endif
 };
 
 /**
  * struct batadv_socket_client - layer2 icmp socket client data
  */
 struct batadv_socket_client {
     /**
      * @queue_list: packet queue for packets destined for this socket client
      */
     struct list_head queue_list;
 
     /** @queue_len: number of packets in the packet queue (queue_list) */
     unsigned int queue_len;
 
     /** @index: socket client's index in the batadv_socket_client_hash */
     unsigned char index;
 
     /** @lock: lock protecting queue_list, queue_len & index */
     spinlock_t lock;
 
     /** @queue_wait: socket client's wait queue */
     wait_queue_head_t queue_wait;
 
     /** @bat_priv: pointer to soft_iface this client belongs to */
     struct batadv_priv *bat_priv;
 };
 
 /**
  * struct batadv_socket_packet - layer2 icmp packet for socket client
  */
 struct batadv_socket_packet {
     /** @list: list node for &batadv_socket_client.queue_list */
     struct list_head list;
 
     /** @icmp_len: size of the layer2 icmp packet */
     size_t icmp_len;
 
     /** @icmp_packet: layer2 icmp packet */
     u8 icmp_packet[BATADV_ICMP_MAX_PACKET_SIZE];
 };
 
 #ifdef CONFIG_BATMAN_ADV_BLA
 
 /**
  * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN
  */
 struct batadv_bla_backbone_gw {
     /**
      * @orig: originator address of backbone node (mac address of primary
      *  iface)
      */
     u8 orig[ETH_ALEN];
 
     /** @vid: vlan id this gateway was detected on */
     unsigned short vid;
 
     /** @hash_entry: hlist node for &batadv_priv_bla.backbone_hash */
     struct hlist_node hash_entry;
 
     /** @bat_priv: pointer to soft_iface this backbone gateway belongs to */
     struct batadv_priv *bat_priv;
 
     /** @lasttime: last time we heard of this backbone gw */
     unsigned long lasttime;
 
     /**
      * @wait_periods: grace time for bridge forward delays and bla group
      *  forming at bootup phase - no bcast traffic is formwared until it has
      *  elapsed
      */
     atomic_t wait_periods;
 
     /**
      * @request_sent: if this bool is set to true we are out of sync with
      *  this backbone gateway - no bcast traffic is formwared until the
      *  situation was resolved
      */
     atomic_t request_sent;
 
     /** @crc: crc16 checksum over all claims */
     u16 crc;
 
     /** @crc_lock: lock protecting crc */
     spinlock_t crc_lock;
 
     /** @report_work: work struct for reporting detected loops */
     struct work_struct report_work;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * struct batadv_bla_claim - claimed non-mesh client structure
  */
 struct batadv_bla_claim {
     /** @addr: mac address of claimed non-mesh client */
     u8 addr[ETH_ALEN];
 
     /** @vid: vlan id this client was detected on */
     unsigned short vid;
 
     /** @backbone_gw: pointer to backbone gw claiming this client */
     struct batadv_bla_backbone_gw *backbone_gw;
 
     /** @backbone_lock: lock protecting backbone_gw pointer */
     spinlock_t backbone_lock;
 
     /** @lasttime: last time we heard of claim (locals only) */
     unsigned long lasttime;
 
     /** @hash_entry: hlist node for &batadv_priv_bla.claim_hash */
     struct hlist_node hash_entry;
 
     /** @refcount: number of contexts the object is used */
     struct rcu_head rcu;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct kref refcount;
 };
 #endif
 
 /**
  * struct batadv_tt_common_entry - tt local & tt global common data
  */
 struct batadv_tt_common_entry {
     /** @addr: mac address of non-mesh client */
     u8 addr[ETH_ALEN];
 
     /** @vid: VLAN identifier */
     unsigned short vid;
 
     /**
      * @hash_entry: hlist node for &batadv_priv_tt.local_hash or for
      *  &batadv_priv_tt.global_hash
      */
     struct hlist_node hash_entry;
 
     /** @flags: various state handling flags (see batadv_tt_client_flags) */
     u16 flags;
 
     /** @added_at: timestamp used for purging stale tt common entries */
     unsigned long added_at;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * struct batadv_tt_local_entry - translation table local entry data
  */
 struct batadv_tt_local_entry {
     /** @common: general translation table data */
     struct batadv_tt_common_entry common;
 
     /** @last_seen: timestamp used for purging stale tt local entries */
     unsigned long last_seen;
 
     /** @vlan: soft-interface vlan of the entry */
     struct batadv_softif_vlan *vlan;
 };
 
 /**
  * struct batadv_tt_global_entry - translation table global entry data
  */
 struct batadv_tt_global_entry {
     /** @common: general translation table data */
     struct batadv_tt_common_entry common;
 
     /** @orig_list: list of orig nodes announcing this non-mesh client */
     struct hlist_head orig_list;
 
     /** @orig_list_count: number of items in the orig_list */
     atomic_t orig_list_count;
 
     /** @list_lock: lock protecting orig_list */
     spinlock_t list_lock;
 
     /** @roam_at: time at which TT_GLOBAL_ROAM was set */
     unsigned long roam_at;
 };
 
 /**
  * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client
  */
 struct batadv_tt_orig_list_entry {
     /** @orig_node: pointer to orig node announcing this non-mesh client */
     struct batadv_orig_node *orig_node;
 
     /**
      * @ttvn: translation table version number which added the non-mesh
      *  client
      */
     u8 ttvn;
 
     /** @flags: per orig entry TT sync flags */
     u8 flags;
 
     /** @list: list node for &batadv_tt_global_entry.orig_list */
     struct hlist_node list;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * struct batadv_tt_change_node - structure for tt changes occurred
  */
 struct batadv_tt_change_node {
     /** @list: list node for &batadv_priv_tt.changes_list */
     struct list_head list;
 
     /** @change: holds the actual translation table diff data */
     struct batadv_tvlv_tt_change change;
 };
 
 /**
  * struct batadv_tt_req_node - data to keep track of the tt requests in flight
  */
 struct batadv_tt_req_node {
     /**
      * @addr: mac address of the originator this request was sent to
      */
     u8 addr[ETH_ALEN];
 
     /** @issued_at: timestamp used for purging stale tt requests */
     unsigned long issued_at;
 
     /** @refcount: number of contexts the object is used by */
     struct kref refcount;
 
     /** @list: list node for &batadv_priv_tt.req_list */
     struct hlist_node list;
 };
 
 /**
  * struct batadv_tt_roam_node - roaming client data
  */
 struct batadv_tt_roam_node {
     /** @addr: mac address of the client in the roaming phase */
     u8 addr[ETH_ALEN];
 
     /**
      * @counter: number of allowed roaming events per client within a single
      * OGM interval (changes are committed with each OGM)
      */
     atomic_t counter;
 
     /**
      * @first_time: timestamp used for purging stale roaming node entries
      */
     unsigned long first_time;
 
     /** @list: list node for &batadv_priv_tt.roam_list */
     struct list_head list;
 };
 
 /**
  * struct batadv_nc_node - network coding node
  */
 struct batadv_nc_node {
     /** @list: next and prev pointer for the list handling */
     struct list_head list;
 
     /** @addr: the node's mac address */
     u8 addr[ETH_ALEN];
 
     /** @refcount: number of contexts the object is used by */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 
     /** @orig_node: pointer to corresponding orig node struct */
     struct batadv_orig_node *orig_node;
 
     /** @last_seen: timestamp of last ogm received from this node */
     unsigned long last_seen;
 };
 
 /**
  * struct batadv_nc_path - network coding path
  */
 struct batadv_nc_path {
     /** @hash_entry: next and prev pointer for the list handling */
     struct hlist_node hash_entry;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 
     /** @refcount: number of contexts the object is used by */
     struct kref refcount;
 
     /** @packet_list: list of buffered packets for this path */
     struct list_head packet_list;
 
     /** @packet_list_lock: access lock for packet list */
     spinlock_t packet_list_lock;
 
     /** @next_hop: next hop (destination) of path */
     u8 next_hop[ETH_ALEN];
 
     /** @prev_hop: previous hop (source) of path */
     u8 prev_hop[ETH_ALEN];
 
     /** @last_valid: timestamp for last validation of path */
     unsigned long last_valid;
 };
 
 /**
  * struct batadv_nc_packet - network coding packet used when coding and
  *  decoding packets
  */
 struct batadv_nc_packet {
     /** @list: next and prev pointer for the list handling */
     struct list_head list;
 
     /** @packet_id: crc32 checksum of skb data */
     __be32 packet_id;
 
     /**
      * @timestamp: field containing the info when the packet was added to
      *  path
      */
     unsigned long timestamp;
 
     /** @neigh_node: pointer to original next hop neighbor of skb */
     struct batadv_neigh_node *neigh_node;
 
     /** @skb: skb which can be encoded or used for decoding */
     struct sk_buff *skb;
 
     /** @nc_path: pointer to path this nc packet is attached to */
     struct batadv_nc_path *nc_path;
 };
 
 /**
  * struct batadv_skb_cb - control buffer structure used to store private data
  *  relevant to batman-adv in the skb->cb buffer in skbs.
  */
 struct batadv_skb_cb {
     /**
      * @decoded: Marks a skb as decoded, which is checked when searching for
      *  coding opportunities in network-coding.c
      */
     unsigned char decoded:1;
 
     /** @num_bcasts: Counter for broadcast packet retransmissions */
     unsigned char num_bcasts;
 };
 
 /**
  * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded
  */
 struct batadv_forw_packet {
     /**
      * @list: list node for &batadv_priv.forw.bcast_list and
      *  &batadv_priv.forw.bat_list
      */
     struct hlist_node list;
 
     /** @cleanup_list: list node for purging functions */
     struct hlist_node cleanup_list;
 
     /** @send_time: execution time for delayed_work (packet sending) */
     unsigned long send_time;
 
     /**
      * @own: bool for locally generated packets (local OGMs are re-scheduled
      * after sending)
      */
     u8 own;
 
     /** @skb: bcast packet's skb buffer */
     struct sk_buff *skb;
 
     /** @packet_len: size of aggregated OGM packet inside the skb buffer */
     u16 packet_len;
 
     /** @direct_link_flags: direct link flags for aggregated OGM packets */
     u32 direct_link_flags;
 
     /** @num_packets: counter for aggregated OGMv1 packets */
     u8 num_packets;
 
     /** @delayed_work: work queue callback item for packet sending */
     struct delayed_work delayed_work;
 
     /**
      * @if_incoming: pointer to incoming hard-iface or primary iface if
      *  locally generated packet
      */
     struct batadv_hard_iface *if_incoming;
 
     /**
      * @if_outgoing: packet where the packet should be sent to, or NULL if
      *  unspecified
      */
     struct batadv_hard_iface *if_outgoing;
 
     /** @queue_left: The queue (counter) this packet was applied to */
     atomic_t *queue_left;
 };
 
 /**
  * struct batadv_algo_iface_ops - mesh algorithm callbacks (interface specific)
  */
 struct batadv_algo_iface_ops {
     /**
      * @activate: start routing mechanisms when hard-interface is brought up
      *  (optional)
      */
     void (*activate)(struct batadv_hard_iface *hard_iface);
 
     /** @enable: init routing info when hard-interface is enabled */
     int (*enable)(struct batadv_hard_iface *hard_iface);
 
     /** @enabled: notification when hard-interface was enabled (optional) */
     void (*enabled)(struct batadv_hard_iface *hard_iface);
 
     /** @disable: de-init routing info when hard-interface is disabled */
     void (*disable)(struct batadv_hard_iface *hard_iface);
 
     /**
      * @update_mac: (re-)init mac addresses of the protocol information
      *  belonging to this hard-interface
      */
     void (*update_mac)(struct batadv_hard_iface *hard_iface);
 
     /** @primary_set: called when primary interface is selected / changed */
     void (*primary_set)(struct batadv_hard_iface *hard_iface);
 };
 
 /**
  * struct batadv_algo_neigh_ops - mesh algorithm callbacks (neighbour specific)
  */
 struct batadv_algo_neigh_ops {
     /** @hardif_init: called on creation of single hop entry (optional) */
     void (*hardif_init)(struct batadv_hardif_neigh_node *neigh);
 
     /**
      * @cmp: compare the metrics of two neighbors for their respective
      *  outgoing interfaces
      */
     int (*cmp)(struct batadv_neigh_node *neigh1,
            struct batadv_hard_iface *if_outgoing1,
            struct batadv_neigh_node *neigh2,
            struct batadv_hard_iface *if_outgoing2);
 
     /**
      * @is_similar_or_better: check if neigh1 is equally similar or better
      *  than neigh2 for their respective outgoing interface from the metric
      *  prospective
      */
     bool (*is_similar_or_better)(struct batadv_neigh_node *neigh1,
                      struct batadv_hard_iface *if_outgoing1,
                      struct batadv_neigh_node *neigh2,
                      struct batadv_hard_iface *if_outgoing2);
 
     /** @dump: dump neighbors to a netlink socket (optional) */
     void (*dump)(struct sk_buff *msg, struct netlink_callback *cb,
              struct batadv_priv *priv,
              struct batadv_hard_iface *hard_iface);
 };
 
 /**
  * struct batadv_algo_orig_ops - mesh algorithm callbacks (originator specific)
  */
 struct batadv_algo_orig_ops {
     /** @dump: dump originators to a netlink socket (optional) */
     void (*dump)(struct sk_buff *msg, struct netlink_callback *cb,
              struct batadv_priv *priv,
              struct batadv_hard_iface *hard_iface);
 };
 
 /**
  * struct batadv_algo_gw_ops - mesh algorithm callbacks (GW specific)
  */
 struct batadv_algo_gw_ops {
     /** @init_sel_class: initialize GW selection class (optional) */
     void (*init_sel_class)(struct batadv_priv *bat_priv);
 
     /**
      * @store_sel_class: parse and stores a new GW selection class
      *  (optional)
      */
     ssize_t (*store_sel_class)(struct batadv_priv *bat_priv, char *buff,
                    size_t count);
     /**
      * @get_best_gw_node: select the best GW from the list of available
      *  nodes (optional)
      */
     struct batadv_gw_node *(*get_best_gw_node)
         (struct batadv_priv *bat_priv);
 
     /**
      * @is_eligible: check if a newly discovered GW is a potential candidate
      *  for the election as best GW (optional)
      */
     bool (*is_eligible)(struct batadv_priv *bat_priv,
                 struct batadv_orig_node *curr_gw_orig,
                 struct batadv_orig_node *orig_node);
 
     /** @dump: dump gateways to a netlink socket (optional) */
     void (*dump)(struct sk_buff *msg, struct netlink_callback *cb,
              struct batadv_priv *priv);
 };
 
 /**
  * struct batadv_algo_ops - mesh algorithm callbacks
  */
 struct batadv_algo_ops {
     /** @list: list node for the batadv_algo_list */
     struct hlist_node list;
 
     /** @name: name of the algorithm */
     char *name;
 
     /** @iface: callbacks related to interface handling */
     struct batadv_algo_iface_ops iface;
 
     /** @neigh: callbacks related to neighbors handling */
     struct batadv_algo_neigh_ops neigh;
 
     /** @orig: callbacks related to originators handling */
     struct batadv_algo_orig_ops orig;
 
     /** @gw: callbacks related to GW mode */
     struct batadv_algo_gw_ops gw;
 };
 
 /**
  * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It
  * is used to stored ARP entries needed for the global DAT cache
  */
 struct batadv_dat_entry {
     /** @ip: the IPv4 corresponding to this DAT/ARP entry */
     __be32 ip;
 
     /** @mac_addr: the MAC address associated to the stored IPv4 */
     u8 mac_addr[ETH_ALEN];
 
     /** @vid: the vlan ID associated to this entry */
     unsigned short vid;
 
     /**
      * @last_update: time in jiffies when this entry was refreshed last time
      */
     unsigned long last_update;
 
     /** @hash_entry: hlist node for &batadv_priv_dat.hash */
     struct hlist_node hash_entry;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * struct batadv_hw_addr - a list entry for a MAC address
  */
 struct batadv_hw_addr {
     /** @list: list node for the linking of entries */
     struct hlist_node list;
 
     /** @addr: the MAC address of this list entry */
     unsigned char addr[ETH_ALEN];
 };
 
 /**
  * struct batadv_dat_candidate - candidate destination for DAT operations
  */
 struct batadv_dat_candidate {
     /**
      * @type: the type of the selected candidate. It can one of the
      *  following:
      *    - BATADV_DAT_CANDIDATE_NOT_FOUND
      *    - BATADV_DAT_CANDIDATE_ORIG
      */
     int type;
 
     /**
      * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to
      * the corresponding originator node structure
      */
     struct batadv_orig_node *orig_node;
 };
 
 /**
  * struct batadv_tvlv_container - container for tvlv appended to OGMs
  */
 struct batadv_tvlv_container {
     /** @list: hlist node for &batadv_priv_tvlv.container_list */
     struct hlist_node list;
 
     /** @tvlv_hdr: tvlv header information needed to construct the tvlv */
     struct batadv_tvlv_hdr tvlv_hdr;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 };
 
 /**
  * struct batadv_tvlv_handler - handler for specific tvlv type and version
  */
 struct batadv_tvlv_handler {
     /** @list: hlist node for &batadv_priv_tvlv.handler_list */
     struct hlist_node list;
 
     /**
      * @ogm_handler: handler callback which is given the tvlv payload to
      *  process on incoming OGM packets
      */
     void (*ogm_handler)(struct batadv_priv *bat_priv,
                 struct batadv_orig_node *orig,
                 u8 flags, void *tvlv_value, u16 tvlv_value_len);
 
     /**
      * @unicast_handler: handler callback which is given the tvlv payload to
      *  process on incoming unicast tvlv packets
      */
     int (*unicast_handler)(struct batadv_priv *bat_priv,
                    u8 *src, u8 *dst,
                    void *tvlv_value, u16 tvlv_value_len);
 
     /** @type: tvlv type this handler feels responsible for */
     u8 type;
 
     /** @version: tvlv version this handler feels responsible for */
     u8 version;
 
     /** @flags: tvlv handler flags */
     u8 flags;
 
     /** @refcount: number of contexts the object is used */
     struct kref refcount;
 
     /** @rcu: struct used for freeing in an RCU-safe manner */
     struct rcu_head rcu;
 };
 
 /**
  * enum batadv_tvlv_handler_flags - tvlv handler flags definitions
  */
 enum batadv_tvlv_handler_flags {
     /**
      * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function
      *  will call this handler even if its type was not found (with no data)
      */
     BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1),
 
     /**
      * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the
      *  API marks a handler as being called, so it won't be called if the
      *  BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set
      */
     BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2),
 };
 
 #endif /* _NET_BATMAN_ADV_TYPES_H_ */

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