static void ssip_rx_strans()

in clients/ssi_protocol.c [770:814]

• 43 lines of code
• 5 McCabe index (conditional complexity)

static void ssip_rx_strans(struct hsi_client *cl, u32 cmd)
{
	struct ssi_protocol *ssi = hsi_client_drvdata(cl);
	struct sk_buff *skb;
	struct hsi_msg *msg;
	int len = SSIP_PDU_LENGTH(cmd);

	dev_dbg(&cl->device, "RX strans: %d frames\n", len);
	spin_lock_bh(&ssi->lock);
	if (unlikely(ssi->main_state != ACTIVE)) {
		dev_err(&cl->device, "START TRANS wrong state: S(%d) M(%d)\n",
					ssi->send_state, ssi->main_state);
		spin_unlock_bh(&ssi->lock);
		return;
	}
	ssip_set_rxstate(ssi, RECEIVING);
	if (unlikely(SSIP_MSG_ID(cmd) != ssi->rxid)) {
		dev_err(&cl->device, "START TRANS id %d expected %d\n",
					SSIP_MSG_ID(cmd), ssi->rxid);
		spin_unlock_bh(&ssi->lock);
		goto out1;
	}
	ssi->rxid++;
	spin_unlock_bh(&ssi->lock);
	skb = netdev_alloc_skb(ssi->netdev, len * 4);
	if (unlikely(!skb)) {
		dev_err(&cl->device, "No memory for rx skb\n");
		goto out1;
	}
	skb->dev = ssi->netdev;
	skb_put(skb, len * 4);
	msg = ssip_alloc_data(ssi, skb, GFP_ATOMIC);
	if (unlikely(!msg)) {
		dev_err(&cl->device, "No memory for RX data msg\n");
		goto out2;
	}
	msg->complete = ssip_rx_data_complete;
	hsi_async_read(cl, msg);

	return;
out2:
	dev_kfree_skb(skb);
out1:
	ssip_error(cl);
}