tipc: make some functions static

Fixes the following sparse warnings:

net/tipc/link.c:376:5: warning: symbol 'link_bc_rcv_gap' was not declared. Should it be static?
net/tipc/link.c:823:6: warning: symbol 'link_prepare_wakeup' was not declared. Should it be static?
net/tipc/link.c:959:6: warning: symbol 'tipc_link_advance_backlog' was not declared. Should it be static?
net/tipc/link.c:1009:5: warning: symbol 'tipc_link_retrans' was not declared. Should it be static?
net/tipc/monitor.c:687:5: warning: symbol '__tipc_nl_add_monitor_peer' was not declared. Should it be static?
net/tipc/group.c:230:20: warning: symbol 'tipc_group_find_member' was not declared. Should it be static?

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/tipc/group.c

@@ -227,8 +227,8 @@ void tipc_group_delete(struct net *net, struct tipc_group *grp)
 	kfree(grp);
 }
 
-struct tipc_member *tipc_group_find_member(struct tipc_group *grp,
-					   u32 node, u32 port)
+static struct tipc_member *tipc_group_find_member(struct tipc_group *grp,
+						  u32 node, u32 port)
 {
 	struct rb_node *n = grp->members.rb_node;
 	u64 nkey, key = (u64)node << 32 | port;

net/tipc/link.c

@@ -373,7 +373,7 @@ int tipc_link_bc_peers(struct tipc_link *l)
 	return l->ackers;
 }
 
-u16 link_bc_rcv_gap(struct tipc_link *l)
+static u16 link_bc_rcv_gap(struct tipc_link *l)
 {
 	struct sk_buff *skb = skb_peek(&l->deferdq);
 	u16 gap = 0;
@@ -820,7 +820,7 @@ static int link_schedule_user(struct tipc_link *l, struct tipc_msg *hdr)
  * Wake up a number of waiting users, as permitted by available space
  * in the send queue
  */
-void link_prepare_wakeup(struct tipc_link *l)
+static void link_prepare_wakeup(struct tipc_link *l)
 {
 	struct sk_buff *skb, *tmp;
 	int imp, i = 0;
@@ -956,7 +956,8 @@ int tipc_link_xmit(struct tipc_link *l, struct sk_buff_head *list,
 	return rc;
 }
 
-void tipc_link_advance_backlog(struct tipc_link *l, struct sk_buff_head *xmitq)
+static void tipc_link_advance_backlog(struct tipc_link *l,
+				      struct sk_buff_head *xmitq)
 {
 	struct sk_buff *skb, *_skb;
 	struct tipc_msg *hdr;
@@ -1006,8 +1007,8 @@ static void link_retransmit_failure(struct tipc_link *l, struct sk_buff *skb)
  * @to: retransmit to (inclusive) this sequence number
  * xmitq: queue for accumulating the retransmitted packets
  */
-int tipc_link_retrans(struct tipc_link *l, struct tipc_link *r,
-		      u16 from, u16 to, struct sk_buff_head *xmitq)
+static int tipc_link_retrans(struct tipc_link *l, struct tipc_link *r,
+			     u16 from, u16 to, struct sk_buff_head *xmitq)
 {
 	struct sk_buff *_skb, *skb = skb_peek(&l->transmq);
 	u16 bc_ack = l->bc_rcvlink->rcv_nxt - 1;

net/tipc/monitor.c

@@ -684,7 +684,8 @@ int tipc_nl_monitor_get_threshold(struct net *net)
 	return tn->mon_threshold;
 }
 
-int __tipc_nl_add_monitor_peer(struct tipc_peer *peer, struct tipc_nl_msg *msg)
+static int __tipc_nl_add_monitor_peer(struct tipc_peer *peer,
+				      struct tipc_nl_msg *msg)
 {
 	struct tipc_mon_domain *dom = peer->domain;
 	struct nlattr *attrs;