[PATCH net-next 17/21] rxrpc: Differentiate PING ACK transmission traces.

[David Howells]

There are three points that transmit PING ACKs and all of them use the same
trace string.  Change two of them to use different strings.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
cc: Marc Dionne <marc.dionne@xxxxxxxxxxxx>
cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
cc: Eric Dumazet <edumazet@xxxxxxxxxx>
cc: Jakub Kicinski <kuba@xxxxxxxxxx>
cc: Paolo Abeni <pabeni@xxxxxxxxxx>
cc: linux-afs@xxxxxxxxxxxxxxxxxxx
cc: netdev@xxxxxxxxxxxxxxx
---
 include/trace/events/rxrpc.h | 2 ++
 net/rxrpc/call_event.c       | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index c730cd732348..3b726a6c8c42 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h
@@ -364,11 +364,13 @@
 
 #define rxrpc_propose_ack_traces \
 	EM(rxrpc_propose_ack_client_tx_end,	"ClTxEnd") \
+	EM(rxrpc_propose_ack_delayed_ack,	"DlydAck") \
 	EM(rxrpc_propose_ack_input_data,	"DataIn ") \
 	EM(rxrpc_propose_ack_input_data_hole,	"DataInH") \
 	EM(rxrpc_propose_ack_ping_for_keepalive, "KeepAlv") \
 	EM(rxrpc_propose_ack_ping_for_lost_ack,	"LostAck") \
 	EM(rxrpc_propose_ack_ping_for_lost_reply, "LostRpl") \
+	EM(rxrpc_propose_ack_ping_for_0_retrans, "0-Retrn") \
 	EM(rxrpc_propose_ack_ping_for_old_rtt,	"OldRtt ") \
 	EM(rxrpc_propose_ack_ping_for_params,	"Params ") \
 	EM(rxrpc_propose_ack_ping_for_rtt,	"Rtt    ") \
diff --git a/net/rxrpc/call_event.c b/net/rxrpc/call_event.c
index ef28ebf37c7d..bc1a5abb7d6f 100644
--- a/net/rxrpc/call_event.c
+++ b/net/rxrpc/call_event.c
@@ -197,7 +197,7 @@ void rxrpc_resend(struct rxrpc_call *call, struct sk_buff *ack_skb)
 		if (ktime_to_us(ack_ts) < (call->peer->srtt_us >> 3))
 			goto out;
 		rxrpc_send_ACK(call, RXRPC_ACK_PING, 0,
-			       rxrpc_propose_ack_ping_for_lost_ack);
+			       rxrpc_propose_ack_ping_for_0_retrans);
 		goto out;
 	}
 
@@ -387,7 +387,7 @@ bool rxrpc_input_call_event(struct rxrpc_call *call, struct sk_buff *skb)
 		trace_rxrpc_timer(call, rxrpc_timer_exp_ack, now);
 		call->delay_ack_at = now + MAX_JIFFY_OFFSET;
 		rxrpc_send_ACK(call, RXRPC_ACK_DELAY, 0,
-			       rxrpc_propose_ack_ping_for_lost_ack);
+			       rxrpc_propose_ack_delayed_ack);
 	}
 
 	t = call->ack_lost_at;