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-rw-r--r--net/tipc/bcast.c4
-rw-r--r--net/tipc/bearer.c12
-rw-r--r--net/tipc/diag.c2
-rw-r--r--net/tipc/link.c68
-rw-r--r--net/tipc/link.h3
-rw-r--r--net/tipc/name_table.c10
-rw-r--r--net/tipc/name_table.h9
-rw-r--r--net/tipc/netlink.c2
-rw-r--r--net/tipc/netlink_compat.c5
-rw-r--r--net/tipc/node.c14
-rw-r--r--net/tipc/socket.c102
-rw-r--r--net/tipc/socket.h3
-rw-r--r--net/tipc/topsrv.c4
13 files changed, 180 insertions, 58 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 9ee6cfea56dd..d8026543bf4c 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -51,12 +51,12 @@ const char tipc_bclink_name[] = "broadcast-link";
* struct tipc_bc_base - base structure for keeping broadcast send state
* @link: broadcast send link structure
* @inputq: data input queue; will only carry SOCK_WAKEUP messages
- * @dest: array keeping number of reachable destinations per bearer
+ * @dests: array keeping number of reachable destinations per bearer
* @primary_bearer: a bearer having links to all broadcast destinations, if any
* @bcast_support: indicates if primary bearer, if any, supports broadcast
* @rcast_support: indicates if all peer nodes support replicast
* @rc_ratio: dest count as percentage of cluster size where send method changes
- * @bc_threshold: calculated drom rc_ratio; if dests > threshold use broadcast
+ * @bc_threshold: calculated from rc_ratio; if dests > threshold use broadcast
*/
struct tipc_bc_base {
struct tipc_link *link;
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 418f03d0be90..645c16052052 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -609,16 +609,18 @@ static int tipc_l2_device_event(struct notifier_block *nb, unsigned long evt,
switch (evt) {
case NETDEV_CHANGE:
- if (netif_carrier_ok(dev))
+ if (netif_carrier_ok(dev) && netif_oper_up(dev)) {
+ test_and_set_bit_lock(0, &b->up);
break;
- /* else: fall through */
- case NETDEV_UP:
- test_and_set_bit_lock(0, &b->up);
- break;
+ }
+ /* fall through */
case NETDEV_GOING_DOWN:
clear_bit_unlock(0, &b->up);
tipc_reset_bearer(net, b);
break;
+ case NETDEV_UP:
+ test_and_set_bit_lock(0, &b->up);
+ break;
case NETDEV_CHANGEMTU:
if (tipc_mtu_bad(dev, 0)) {
bearer_disable(net, b);
diff --git a/net/tipc/diag.c b/net/tipc/diag.c
index aaabb0b776dd..73137f4aeb68 100644
--- a/net/tipc/diag.c
+++ b/net/tipc/diag.c
@@ -84,7 +84,9 @@ static int tipc_sock_diag_handler_dump(struct sk_buff *skb,
if (h->nlmsg_flags & NLM_F_DUMP) {
struct netlink_dump_control c = {
+ .start = tipc_dump_start,
.dump = tipc_diag_dump,
+ .done = tipc_dump_done,
};
netlink_dump_start(net->diag_nlsk, skb, h, &c);
return 0;
diff --git a/net/tipc/link.c b/net/tipc/link.c
index b1f0bee54eac..f6552e4f4b43 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -410,6 +410,11 @@ char *tipc_link_name(struct tipc_link *l)
return l->name;
}
+u32 tipc_link_state(struct tipc_link *l)
+{
+ return l->state;
+}
+
/**
* tipc_link_create - create a new link
* @n: pointer to associated node
@@ -472,6 +477,8 @@ bool tipc_link_create(struct net *net, char *if_name, int bearer_id,
l->in_session = false;
l->bearer_id = bearer_id;
l->tolerance = tolerance;
+ if (bc_rcvlink)
+ bc_rcvlink->tolerance = tolerance;
l->net_plane = net_plane;
l->advertised_mtu = mtu;
l->mtu = mtu;
@@ -838,12 +845,24 @@ static void link_prepare_wakeup(struct tipc_link *l)
void tipc_link_reset(struct tipc_link *l)
{
+ struct sk_buff_head list;
+
+ __skb_queue_head_init(&list);
+
l->in_session = false;
l->session++;
l->mtu = l->advertised_mtu;
+
+ spin_lock_bh(&l->wakeupq.lock);
+ skb_queue_splice_init(&l->wakeupq, &list);
+ spin_unlock_bh(&l->wakeupq.lock);
+
+ spin_lock_bh(&l->inputq->lock);
+ skb_queue_splice_init(&list, l->inputq);
+ spin_unlock_bh(&l->inputq->lock);
+
__skb_queue_purge(&l->transmq);
__skb_queue_purge(&l->deferdq);
- skb_queue_splice_init(&l->wakeupq, l->inputq);
__skb_queue_purge(&l->backlogq);
l->backlog[TIPC_LOW_IMPORTANCE].len = 0;
l->backlog[TIPC_MEDIUM_IMPORTANCE].len = 0;
@@ -1021,7 +1040,7 @@ static int tipc_link_retrans(struct tipc_link *l, struct tipc_link *r,
/* Detect repeated retransmit failures on same packet */
if (r->last_retransm != buf_seqno(skb)) {
r->last_retransm = buf_seqno(skb);
- r->stale_limit = jiffies + msecs_to_jiffies(l->tolerance);
+ r->stale_limit = jiffies + msecs_to_jiffies(r->tolerance);
} else if (++r->stale_cnt > 99 && time_after(jiffies, r->stale_limit)) {
link_retransmit_failure(l, skb);
if (link_is_bc_sndlink(l))
@@ -1380,6 +1399,36 @@ static void tipc_link_build_proto_msg(struct tipc_link *l, int mtyp, bool probe,
__skb_queue_tail(xmitq, skb);
}
+void tipc_link_create_dummy_tnl_msg(struct tipc_link *l,
+ struct sk_buff_head *xmitq)
+{
+ u32 onode = tipc_own_addr(l->net);
+ struct tipc_msg *hdr, *ihdr;
+ struct sk_buff_head tnlq;
+ struct sk_buff *skb;
+ u32 dnode = l->addr;
+
+ skb_queue_head_init(&tnlq);
+ skb = tipc_msg_create(TUNNEL_PROTOCOL, FAILOVER_MSG,
+ INT_H_SIZE, BASIC_H_SIZE,
+ dnode, onode, 0, 0, 0);
+ if (!skb) {
+ pr_warn("%sunable to create tunnel packet\n", link_co_err);
+ return;
+ }
+
+ hdr = buf_msg(skb);
+ msg_set_msgcnt(hdr, 1);
+ msg_set_bearer_id(hdr, l->peer_bearer_id);
+
+ ihdr = (struct tipc_msg *)msg_data(hdr);
+ tipc_msg_init(onode, ihdr, TIPC_LOW_IMPORTANCE, TIPC_DIRECT_MSG,
+ BASIC_H_SIZE, dnode);
+ msg_set_errcode(ihdr, TIPC_ERR_NO_PORT);
+ __skb_queue_tail(&tnlq, skb);
+ tipc_link_xmit(l, &tnlq, xmitq);
+}
+
/* tipc_link_tnl_prepare(): prepare and return a list of tunnel packets
* with contents of the link's transmit and backlog queues.
*/
@@ -1476,6 +1525,9 @@ bool tipc_link_validate_msg(struct tipc_link *l, struct tipc_msg *hdr)
return false;
if (session != curr_session)
return false;
+ /* Extra sanity check */
+ if (!link_is_up(l) && msg_ack(hdr))
+ return false;
if (!(l->peer_caps & TIPC_LINK_PROTO_SEQNO))
return true;
/* Accept only STATE with new sequence number */
@@ -1533,9 +1585,10 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
strncpy(if_name, data, TIPC_MAX_IF_NAME);
/* Update own tolerance if peer indicates a non-zero value */
- if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL))
+ if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL)) {
l->tolerance = peers_tol;
-
+ l->bc_rcvlink->tolerance = peers_tol;
+ }
/* Update own priority if peer's priority is higher */
if (in_range(peers_prio, l->priority + 1, TIPC_MAX_LINK_PRI))
l->priority = peers_prio;
@@ -1561,9 +1614,10 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
l->rcv_nxt_state = msg_seqno(hdr) + 1;
/* Update own tolerance if peer indicates a non-zero value */
- if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL))
+ if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL)) {
l->tolerance = peers_tol;
-
+ l->bc_rcvlink->tolerance = peers_tol;
+ }
/* Update own prio if peer indicates a different value */
if ((peers_prio != l->priority) &&
in_range(peers_prio, 1, TIPC_MAX_LINK_PRI)) {
@@ -2180,6 +2234,8 @@ void tipc_link_set_tolerance(struct tipc_link *l, u32 tol,
struct sk_buff_head *xmitq)
{
l->tolerance = tol;
+ if (l->bc_rcvlink)
+ l->bc_rcvlink->tolerance = tol;
if (link_is_up(l))
tipc_link_build_proto_msg(l, STATE_MSG, 0, 0, 0, tol, 0, xmitq);
}
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 7bc494a33fdf..90488c538a4e 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -88,6 +88,8 @@ bool tipc_link_bc_create(struct net *net, u32 ownnode, u32 peer,
struct tipc_link **link);
void tipc_link_tnl_prepare(struct tipc_link *l, struct tipc_link *tnl,
int mtyp, struct sk_buff_head *xmitq);
+void tipc_link_create_dummy_tnl_msg(struct tipc_link *tnl,
+ struct sk_buff_head *xmitq);
void tipc_link_build_reset_msg(struct tipc_link *l, struct sk_buff_head *xmitq);
int tipc_link_fsm_evt(struct tipc_link *l, int evt);
bool tipc_link_is_up(struct tipc_link *l);
@@ -107,6 +109,7 @@ u16 tipc_link_rcv_nxt(struct tipc_link *l);
u16 tipc_link_acked(struct tipc_link *l);
u32 tipc_link_id(struct tipc_link *l);
char *tipc_link_name(struct tipc_link *l);
+u32 tipc_link_state(struct tipc_link *l);
char tipc_link_plane(struct tipc_link *l);
int tipc_link_prio(struct tipc_link *l);
int tipc_link_window(struct tipc_link *l);
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index 88f027b502f6..66d5b2c5987a 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -980,20 +980,17 @@ int tipc_nl_name_table_dump(struct sk_buff *skb, struct netlink_callback *cb)
struct tipc_dest *tipc_dest_find(struct list_head *l, u32 node, u32 port)
{
- u64 value = (u64)node << 32 | port;
struct tipc_dest *dst;
list_for_each_entry(dst, l, list) {
- if (dst->value != value)
- continue;
- return dst;
+ if (dst->node == node && dst->port == port)
+ return dst;
}
return NULL;
}
bool tipc_dest_push(struct list_head *l, u32 node, u32 port)
{
- u64 value = (u64)node << 32 | port;
struct tipc_dest *dst;
if (tipc_dest_find(l, node, port))
@@ -1002,7 +999,8 @@ bool tipc_dest_push(struct list_head *l, u32 node, u32 port)
dst = kmalloc(sizeof(*dst), GFP_ATOMIC);
if (unlikely(!dst))
return false;
- dst->value = value;
+ dst->node = node;
+ dst->port = port;
list_add(&dst->list, l);
return true;
}
diff --git a/net/tipc/name_table.h b/net/tipc/name_table.h
index 0febba41da86..892bd750b85f 100644
--- a/net/tipc/name_table.h
+++ b/net/tipc/name_table.h
@@ -133,13 +133,8 @@ void tipc_nametbl_stop(struct net *net);
struct tipc_dest {
struct list_head list;
- union {
- struct {
- u32 port;
- u32 node;
- };
- u64 value;
- };
+ u32 port;
+ u32 node;
};
struct tipc_dest *tipc_dest_find(struct list_head *l, u32 node, u32 port);
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c
index 6ff2254088f6..99ee419210ba 100644
--- a/net/tipc/netlink.c
+++ b/net/tipc/netlink.c
@@ -167,7 +167,9 @@ static const struct genl_ops tipc_genl_v2_ops[] = {
},
{
.cmd = TIPC_NL_SOCK_GET,
+ .start = tipc_dump_start,
.dumpit = tipc_nl_sk_dump,
+ .done = tipc_dump_done,
.policy = tipc_nl_policy,
},
{
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index a2f76743c73a..6376467e78f8 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -185,6 +185,10 @@ static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd,
return -ENOMEM;
buf->sk = msg->dst_sk;
+ if (__tipc_dump_start(&cb, msg->net)) {
+ kfree_skb(buf);
+ return -ENOMEM;
+ }
do {
int rem;
@@ -216,6 +220,7 @@ static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd,
err = 0;
err_out:
+ tipc_dump_done(&cb);
kfree_skb(buf);
if (err == -EMSGSIZE) {
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 68014f1b6976..2afc4f8c37a7 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -111,6 +111,7 @@ struct tipc_node {
int action_flags;
struct list_head list;
int state;
+ bool failover_sent;
u16 sync_point;
int link_cnt;
u16 working_links;
@@ -680,6 +681,7 @@ static void __tipc_node_link_up(struct tipc_node *n, int bearer_id,
*slot0 = bearer_id;
*slot1 = bearer_id;
tipc_node_fsm_evt(n, SELF_ESTABL_CONTACT_EVT);
+ n->failover_sent = false;
n->action_flags |= TIPC_NOTIFY_NODE_UP;
tipc_link_set_active(nl, true);
tipc_bcast_add_peer(n->net, nl, xmitq);
@@ -911,6 +913,7 @@ void tipc_node_check_dest(struct net *net, u32 addr,
bool reset = true;
char *if_name;
unsigned long intv;
+ u16 session;
*dupl_addr = false;
*respond = false;
@@ -997,9 +1000,10 @@ void tipc_node_check_dest(struct net *net, u32 addr,
goto exit;
if_name = strchr(b->name, ':') + 1;
+ get_random_bytes(&session, sizeof(u16));
if (!tipc_link_create(net, if_name, b->identity, b->tolerance,
b->net_plane, b->mtu, b->priority,
- b->window, mod(tipc_net(net)->random),
+ b->window, session,
tipc_own_addr(net), addr, peer_id,
n->capabilities,
tipc_bc_sndlink(n->net), n->bc_entry.link,
@@ -1615,6 +1619,14 @@ static bool tipc_node_check_state(struct tipc_node *n, struct sk_buff *skb,
tipc_skb_queue_splice_tail_init(tipc_link_inputq(pl),
tipc_link_inputq(l));
}
+ /* If parallel link was already down, and this happened before
+ * the tunnel link came up, FAILOVER was never sent. Ensure that
+ * FAILOVER is sent to get peer out of NODE_FAILINGOVER state.
+ */
+ if (n->state != NODE_FAILINGOVER && !n->failover_sent) {
+ tipc_link_create_dummy_tnl_msg(l, xmitq);
+ n->failover_sent = true;
+ }
/* If pkts arrive out of order, use lowest calculated syncpt */
if (less(syncpt, n->sync_point))
n->sync_point = syncpt;
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index c1e93c9515bc..49810fdff4c5 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -576,6 +576,7 @@ static int tipc_release(struct socket *sock)
sk_stop_timer(sk, &sk->sk_timer);
tipc_sk_remove(tsk);
+ sock_orphan(sk);
/* Reject any messages that accumulated in backlog queue */
release_sock(sk);
tipc_dest_list_purge(&tsk->cong_links);
@@ -1195,6 +1196,7 @@ void tipc_sk_mcast_rcv(struct net *net, struct sk_buff_head *arrvq,
* @skb: pointer to message buffer.
*/
static void tipc_sk_conn_proto_rcv(struct tipc_sock *tsk, struct sk_buff *skb,
+ struct sk_buff_head *inputq,
struct sk_buff_head *xmitq)
{
struct tipc_msg *hdr = buf_msg(skb);
@@ -1212,7 +1214,16 @@ static void tipc_sk_conn_proto_rcv(struct tipc_sock *tsk, struct sk_buff *skb,
tipc_node_remove_conn(sock_net(sk), tsk_peer_node(tsk),
tsk_peer_port(tsk));
sk->sk_state_change(sk);
- goto exit;
+
+ /* State change is ignored if socket already awake,
+ * - convert msg to abort msg and add to inqueue
+ */
+ msg_set_user(hdr, TIPC_CRITICAL_IMPORTANCE);
+ msg_set_type(hdr, TIPC_CONN_MSG);
+ msg_set_size(hdr, BASIC_H_SIZE);
+ msg_set_hdr_sz(hdr, BASIC_H_SIZE);
+ __skb_queue_tail(inputq, skb);
+ return;
}
tsk->probe_unacked = false;
@@ -1418,8 +1429,10 @@ static int __tipc_sendstream(struct socket *sock, struct msghdr *m, size_t dlen)
/* Handle implicit connection setup */
if (unlikely(dest)) {
rc = __tipc_sendmsg(sock, m, dlen);
- if (dlen && (dlen == rc))
+ if (dlen && dlen == rc) {
+ tsk->peer_caps = tipc_node_get_capabilities(net, dnode);
tsk->snt_unacked = tsk_inc(tsk, dlen + msg_hdr_sz(hdr));
+ }
return rc;
}
@@ -1933,7 +1946,7 @@ static void tipc_sk_proto_rcv(struct sock *sk,
switch (msg_user(hdr)) {
case CONN_MANAGER:
- tipc_sk_conn_proto_rcv(tsk, skb, xmitq);
+ tipc_sk_conn_proto_rcv(tsk, skb, inputq, xmitq);
return;
case SOCK_WAKEUP:
tipc_dest_del(&tsk->cong_links, msg_orignode(hdr), 0);
@@ -2672,6 +2685,8 @@ void tipc_sk_reinit(struct net *net)
rhashtable_walk_stop(&iter);
} while (tsk == ERR_PTR(-EAGAIN));
+
+ rhashtable_walk_exit(&iter);
}
static struct tipc_sock *tipc_sk_lookup(struct net *net, u32 portid)
@@ -3227,45 +3242,74 @@ int tipc_nl_sk_walk(struct sk_buff *skb, struct netlink_callback *cb,
struct netlink_callback *cb,
struct tipc_sock *tsk))
{
- struct net *net = sock_net(skb->sk);
- struct tipc_net *tn = tipc_net(net);
- const struct bucket_table *tbl;
- u32 prev_portid = cb->args[1];
- u32 tbl_id = cb->args[0];
- struct rhash_head *pos;
+ struct rhashtable_iter *iter = (void *)cb->args[4];
struct tipc_sock *tsk;
int err;
- rcu_read_lock();
- tbl = rht_dereference_rcu((&tn->sk_rht)->tbl, &tn->sk_rht);
- for (; tbl_id < tbl->size; tbl_id++) {
- rht_for_each_entry_rcu(tsk, pos, tbl, tbl_id, node) {
- spin_lock_bh(&tsk->sk.sk_lock.slock);
- if (prev_portid && prev_portid != tsk->portid) {
- spin_unlock_bh(&tsk->sk.sk_lock.slock);
+ rhashtable_walk_start(iter);
+ while ((tsk = rhashtable_walk_next(iter)) != NULL) {
+ if (IS_ERR(tsk)) {
+ err = PTR_ERR(tsk);
+ if (err == -EAGAIN) {
+ err = 0;
continue;
}
+ break;
+ }
- err = skb_handler(skb, cb, tsk);
- if (err) {
- prev_portid = tsk->portid;
- spin_unlock_bh(&tsk->sk.sk_lock.slock);
- goto out;
- }
-
- prev_portid = 0;
- spin_unlock_bh(&tsk->sk.sk_lock.slock);
+ sock_hold(&tsk->sk);
+ rhashtable_walk_stop(iter);
+ lock_sock(&tsk->sk);
+ err = skb_handler(skb, cb, tsk);
+ if (err) {
+ release_sock(&tsk->sk);
+ sock_put(&tsk->sk);
+ goto out;
}
+ release_sock(&tsk->sk);
+ rhashtable_walk_start(iter);
+ sock_put(&tsk->sk);
}
+ rhashtable_walk_stop(iter);
out:
- rcu_read_unlock();
- cb->args[0] = tbl_id;
- cb->args[1] = prev_portid;
-
return skb->len;
}
EXPORT_SYMBOL(tipc_nl_sk_walk);
+int tipc_dump_start(struct netlink_callback *cb)
+{
+ return __tipc_dump_start(cb, sock_net(cb->skb->sk));
+}
+EXPORT_SYMBOL(tipc_dump_start);
+
+int __tipc_dump_start(struct netlink_callback *cb, struct net *net)
+{
+ /* tipc_nl_name_table_dump() uses cb->args[0...3]. */
+ struct rhashtable_iter *iter = (void *)cb->args[4];
+ struct tipc_net *tn = tipc_net(net);
+
+ if (!iter) {
+ iter = kmalloc(sizeof(*iter), GFP_KERNEL);
+ if (!iter)
+ return -ENOMEM;
+
+ cb->args[4] = (long)iter;
+ }
+
+ rhashtable_walk_enter(&tn->sk_rht, iter);
+ return 0;
+}
+
+int tipc_dump_done(struct netlink_callback *cb)
+{
+ struct rhashtable_iter *hti = (void *)cb->args[4];
+
+ rhashtable_walk_exit(hti);
+ kfree(hti);
+ return 0;
+}
+EXPORT_SYMBOL(tipc_dump_done);
+
int tipc_sk_fill_sock_diag(struct sk_buff *skb, struct netlink_callback *cb,
struct tipc_sock *tsk, u32 sk_filter_state,
u64 (*tipc_diag_gen_cookie)(struct sock *sk))
diff --git a/net/tipc/socket.h b/net/tipc/socket.h
index aff9b2ae5a1f..5e575f205afe 100644
--- a/net/tipc/socket.h
+++ b/net/tipc/socket.h
@@ -68,4 +68,7 @@ int tipc_nl_sk_walk(struct sk_buff *skb, struct netlink_callback *cb,
int (*skb_handler)(struct sk_buff *skb,
struct netlink_callback *cb,
struct tipc_sock *tsk));
+int tipc_dump_start(struct netlink_callback *cb);
+int __tipc_dump_start(struct netlink_callback *cb, struct net *net);
+int tipc_dump_done(struct netlink_callback *cb);
#endif
diff --git a/net/tipc/topsrv.c b/net/tipc/topsrv.c
index c8e34ef22c30..2627b5d812e9 100644
--- a/net/tipc/topsrv.c
+++ b/net/tipc/topsrv.c
@@ -313,8 +313,8 @@ static void tipc_conn_send_work(struct work_struct *work)
conn_put(con);
}
-/* tipc_conn_queue_evt() - interrupt level call from a subscription instance
- * The queued work is launched into tipc_send_work()->tipc_send_to_sock()
+/* tipc_topsrv_queue_evt() - interrupt level call from a subscription instance
+ * The queued work is launched into tipc_conn_send_work()->tipc_conn_send_to_sock()
*/
void tipc_topsrv_queue_evt(struct net *net, int conid,
u32 event, struct tipc_event *evt)
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