- immediate_ack = true;
- goto skip;
- }
-
- /* Queue the packet. We use a couple of memory barriers here as need
- * to make sure that rx_top is perceived to be set after the buffer
- * pointer and that the buffer pointer is set after the annotation and
- * the skb data.
- *
- * Barriers against rxrpc_recvmsg_data() and rxrpc_rotate_rx_window()
- * and also rxrpc_fill_out_ack().
- */
- rxrpc_get_skb(skb, rxrpc_skb_rx_got);
- call->rxtx_annotations[ix] = annotation;
- smp_wmb();
- call->rxtx_buffer[ix] = skb;
- if (after(seq, call->rx_top)) {
- smp_store_release(&call->rx_top, seq);
- } else if (before(seq, call->rx_top)) {
- /* Send an immediate ACK if we fill in a hole */
- if (!ack) {
- ack = RXRPC_ACK_DELAY;
- ack_serial = serial;
- }
- immediate_ack = true;
- }
- if (flags & RXRPC_LAST_PACKET) {
- set_bit(RXRPC_CALL_RX_LAST, &call->flags);
- trace_rxrpc_receive(call, rxrpc_receive_queue_last, serial, seq);
- } else {
- trace_rxrpc_receive(call, rxrpc_receive_queue, serial, seq);
- }
- queued = true;