419 	u8 ack = 0;  in rxrpc_input_data()  local
461 			ack = RXRPC_ACK_NOSPACE;  in rxrpc_input_data()
463 			goto ack;  in rxrpc_input_data()
502 			ack = RXRPC_ACK_DUPLICATE;  in rxrpc_input_data()
510 			if (ack != RXRPC_ACK_DUPLICATE) {  in rxrpc_input_data()
511 				ack = RXRPC_ACK_DUPLICATE;  in rxrpc_input_data()
519 			ack = RXRPC_ACK_EXCEEDS_WINDOW;  in rxrpc_input_data()
528 			goto ack;  in rxrpc_input_data()
531 		if (flags & RXRPC_REQUEST_ACK && !ack) {  in rxrpc_input_data()
532 			ack = RXRPC_ACK_REQUESTED;  in rxrpc_input_data()
556 			if (!ack) {  in rxrpc_input_data()
557 				ack = RXRPC_ACK_DELAY;  in rxrpc_input_data()
576 			if (!ack) {  in rxrpc_input_data()
577 				ack = RXRPC_ACK_DELAY;  in rxrpc_input_data()
588 				ack = RXRPC_ACK_OUT_OF_SEQUENCE;  in rxrpc_input_data()
593 		if (!ack)  in rxrpc_input_data()
597 ack:  in rxrpc_input_data()
598 	if (atomic_add_return(nr_unacked, &call->ackr_nr_unacked) > 2 && !ack)  in rxrpc_input_data()
599 		ack = RXRPC_ACK_IDLE;  in rxrpc_input_data()
601 	if (ack)  in rxrpc_input_data()
602 		rxrpc_propose_ACK(call, ack, ack_serial,  in rxrpc_input_data()
856 		struct rxrpc_ackpacket ack;  in rxrpc_input_ack()  member
867 	if (skb_copy_bits(skb, offset, &buf.ack, sizeof(buf.ack)) < 0) {  in rxrpc_input_ack()
871 	offset += sizeof(buf.ack);  in rxrpc_input_ack()
874 	acked_serial = ntohl(buf.ack.serial);  in rxrpc_input_ack()
875 	first_soft_ack = ntohl(buf.ack.firstPacket);  in rxrpc_input_ack()
876 	prev_pkt = ntohl(buf.ack.previousPacket);  in rxrpc_input_ack()
878 	nr_acks = buf.ack.nAcks;  in rxrpc_input_ack()
879 	summary.ack_reason = (buf.ack.reason < RXRPC_ACK__INVALID ?  in rxrpc_input_ack()
880 			      buf.ack.reason : RXRPC_ACK__INVALID);  in rxrpc_input_ack()
886 	switch (buf.ack.reason) {  in rxrpc_input_ack()
904 	if (buf.ack.reason == RXRPC_ACK_PING) {  in rxrpc_input_ack()