140 	int rtt_slot = 9;  in rxrpc_begin_rtt_probe()  local
145 	rtt_slot = __ffs(avail & RXRPC_CALL_RTT_AVAIL_MASK);  in rxrpc_begin_rtt_probe()
146 	if (!test_and_clear_bit(rtt_slot, &call->rtt_avail))  in rxrpc_begin_rtt_probe()
149 	call->rtt_serial[rtt_slot] = serial;  in rxrpc_begin_rtt_probe()
150 	call->rtt_sent_at[rtt_slot] = ktime_get_real();  in rxrpc_begin_rtt_probe()
152 	set_bit(rtt_slot + RXRPC_CALL_RTT_PEND_SHIFT, &call->rtt_avail);  in rxrpc_begin_rtt_probe()
154 	trace_rxrpc_rtt_tx(call, why, rtt_slot, serial);  in rxrpc_begin_rtt_probe()
155 	return rtt_slot;  in rxrpc_begin_rtt_probe()
158 	trace_rxrpc_rtt_tx(call, rxrpc_rtt_tx_no_slot, rtt_slot, serial);  in rxrpc_begin_rtt_probe()
166 				   rxrpc_serial_t serial, int rtt_slot)  in rxrpc_cancel_rtt_probe()  argument
168 	if (rtt_slot != -1) {  in rxrpc_cancel_rtt_probe()
169 		clear_bit(rtt_slot + RXRPC_CALL_RTT_PEND_SHIFT, &call->rtt_avail);  in rxrpc_cancel_rtt_probe()
171 		set_bit(rtt_slot, &call->rtt_avail);  in rxrpc_cancel_rtt_probe()
172 		trace_rxrpc_rtt_tx(call, rxrpc_rtt_tx_cancel, rtt_slot, serial);  in rxrpc_cancel_rtt_probe()
189 	int ret, rtt_slot = -1;  in rxrpc_send_ack_packet()  local
254 		rtt_slot = rxrpc_begin_rtt_probe(call, serial, rxrpc_rtt_tx_ping);  in rxrpc_send_ack_packet()
268 			rxrpc_cancel_rtt_probe(call, serial, rtt_slot);  in rxrpc_send_ack_packet()
360 	int ret, rtt_slot = -1;  in rxrpc_send_data_packet()  local
443 		rtt_slot = rxrpc_begin_rtt_probe(call, serial, rxrpc_rtt_tx_data);  in rxrpc_send_data_packet()
456 		rxrpc_cancel_rtt_probe(call, serial, rtt_slot);  in rxrpc_send_data_packet()
519 		rtt_slot = rxrpc_begin_rtt_probe(call, serial, rxrpc_rtt_tx_data);  in rxrpc_send_data_packet()
539 		rxrpc_cancel_rtt_probe(call, serial, rtt_slot);  in rxrpc_send_data_packet()