21  * Propose a PING ACK be sent.
38  * Propose a DELAY ACK be sent in the future.
65  * Queue an ACK for immediate transmission.
88 	txb->ack.bufferSpace	= 0;  in rxrpc_send_ACK()
89 	txb->ack.maxSkew	= 0;  in rxrpc_send_ACK()
90 	txb->ack.firstPacket	= 0;  in rxrpc_send_ACK()
91 	txb->ack.previousPacket	= 0;  in rxrpc_send_ACK()
92 	txb->ack.serial		= htonl(serial);  in rxrpc_send_ACK()
93 	txb->ack.reason		= ack_reason;  in rxrpc_send_ACK()
94 	txb->ack.nAcks		= 0;  in rxrpc_send_ACK()
114 	struct rxrpc_ackpacket *ack = NULL;  in rxrpc_resend()  local
139 	/* Scan the soft ACK table without dropping the lock and resend any  in rxrpc_resend()
144 		ack = (void *)ack_skb->data + sizeof(struct rxrpc_wire_header);  in rxrpc_resend()
149 			if (ack->acks[i] & 1)  in rxrpc_resend()
155 				continue; /* A new hard ACK probably came in */  in rxrpc_resend()
164 				continue; /* Ack point not yet reached */  in rxrpc_resend()
184 	 * seen.  Anything between the soft-ACK table and that point will get  in rxrpc_resend()
185 	 * ACK'd or NACK'd in due course, so don't worry about it here; here we  in rxrpc_resend()
188 	 * Note that ACK for a packet can beat the update of tx_transmitted.  in rxrpc_resend()
199 		if (ack && ack->reason == RXRPC_ACK_PING_RESPONSE &&  in rxrpc_resend()
200 		    before(ntohl(txb->wire.serial), ntohl(ack->serial)))  in rxrpc_resend()
229 	 * that an ACK got lost somewhere.  Send a ping to find out instead of  in rxrpc_resend()
255  * Start transmitting the reply to a service.  This cancels the need to ACK the
371  * Handle retransmission and deferred ACK/abort generation.