tipc: Eliminate timestamp from link protocol messages

Removes support for the timestamp field of TIPC's link protocol messages.

This field was previously used to hold an OS-dependent timestamp value
that was used to assist in debugging early versions of TIPC. The field
has now been deemed unnecessary and has been removed from the latest TIPC
specification. This change has no impact on the operation of TIPC since
the field was set by TIPC, but never referenced.
Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

net/tipc/link.c

@@ -1977,7 +1977,6 @@ void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int probe_msg,
 		skb_copy_to_linear_data(buf, msg, sizeof(l_ptr->proto_msg));
 		return;
 	}
-	msg_set_timestamp(msg, jiffies_to_msecs(jiffies));
 
 	/* Message can be sent */
 

net/tipc/msg.c

@@ -238,7 +238,6 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str)
 			tipc_printf(buf, "REROUTED(%u):", msg_reroute_cnt(msg));
 		break;
 	case LINK_PROTOCOL:
-		tipc_printf(buf, "PROT:TIM(%u):", msg_timestamp(msg));
 		switch (msg_type(msg)) {
 		case STATE_MSG:
 			tipc_printf(buf, "STATE:");

net/tipc/msg.h

@@ -438,16 +438,6 @@ static inline void msg_set_nametype(struct tipc_msg *m, u32 n)
 	msg_set_word(m, 8, n);
 }
 
-static inline void msg_set_timestamp(struct tipc_msg *m, u32 n)
-{
-	msg_set_word(m, 8, n);
-}
-
-static inline u32 msg_timestamp(struct tipc_msg *m)
-{
-	return msg_word(m, 8);
-}
-
 static inline u32 msg_nameinst(struct tipc_msg *m)
 {
 	return msg_word(m, 9);