rxrpc: Trace ack.rwind

[platform/kernel/linux-rpi.git] / net / rxrpc / output.c

diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c
index 6b20222..5e53429 100644 (file)
--- a/net/rxrpc/output.c
+++ b/net/rxrpc/output.c
@@ -80,7 +80,8 @@ static void rxrpc_set_keepalive(struct rxrpc_call *call)
  */
 static size_t rxrpc_fill_out_ack(struct rxrpc_connection *conn,
                                 struct rxrpc_call *call,
-                                struct rxrpc_txbuf *txb)
+                                struct rxrpc_txbuf *txb,
+                                u16 *_rwind)
 {
        struct rxrpc_ackinfo ackinfo;
        unsigned int qsize, sack, wrap, to;
@@ -124,6 +125,7 @@ static size_t rxrpc_fill_out_ack(struct rxrpc_connection *conn,
        jmax = rxrpc_rx_jumbo_max;
        qsize = (window - 1) - call->rx_consumed;
        rsize = max_t(int, call->rx_winsize - qsize, 0);
+       *_rwind = rsize;
        ackinfo.rxMTU           = htonl(rxrpc_rx_mtu);
        ackinfo.maxMTU          = htonl(mtu);
        ackinfo.rwind           = htonl(rsize);
@@ -190,6 +192,7 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, struct rxrpc_txbuf *txb)
        rxrpc_serial_t serial;
        size_t len, n;
        int ret, rtt_slot = -1;
+       u16 rwind;
 
        if (test_bit(RXRPC_CALL_DISCONNECTED, &call->flags))
                return -ECONNRESET;
@@ -205,7 +208,7 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, struct rxrpc_txbuf *txb)
        if (txb->ack.reason == RXRPC_ACK_PING)
                txb->wire.flags |= RXRPC_REQUEST_ACK;
 
-       n = rxrpc_fill_out_ack(conn, call, txb);
+       n = rxrpc_fill_out_ack(conn, call, txb, &rwind);
        if (n == 0)
                return 0;
 
@@ -217,7 +220,8 @@ int rxrpc_send_ack_packet(struct rxrpc_call *call, struct rxrpc_txbuf *txb)
        txb->wire.serial = htonl(serial);
        trace_rxrpc_tx_ack(call->debug_id, serial,
                           ntohl(txb->ack.firstPacket),
-                          ntohl(txb->ack.serial), txb->ack.reason, txb->ack.nAcks);
+                          ntohl(txb->ack.serial), txb->ack.reason, txb->ack.nAcks,
+                          rwind);
 
        if (txb->ack.reason == RXRPC_ACK_PING)
                rtt_slot = rxrpc_begin_rtt_probe(call, serial, rxrpc_rtt_tx_ping);