tipc: introduce node contact FSM

[cascardo/linux.git] / net / tipc / msg.h

diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 19c45fb..4dc66d9 100644 (file)
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -766,6 +766,13 @@ static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n)
        msg_set_bits(m, 9, 0, 0xffff, n);
 }
 
+static inline bool msg_peer_is_up(struct tipc_msg *m)
+{
+       if (likely(msg_user(m) != LINK_PROTOCOL) || (msg_type(m) == STATE_MSG))
+               return true;
+       return msg_redundant_link(m);
+}
+
 struct sk_buff *tipc_buf_acquire(u32 size);
 bool tipc_msg_validate(struct sk_buff *skb);
 bool tipc_msg_reverse(u32 own_addr, struct sk_buff *buf, u32 *dnode,