Commit 576f3cc7 authored by sjur.brandeland@stericsson.com's avatar sjur.brandeland@stericsson.com Committed by David S. Miller
Browse files

caif: Add drop count for caif_net device. 



Count dropped packets in CAIF Netdevice.

Signed-off-by: default avatarSjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4a695823

net/caif/chnl_net.c

+6 −6
Original line number Diff line number Diff line
@@ -74,7 +74,6 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt) 
	struct sk_buff *skb;

	struct chnl_net *priv  = container_of(layr, struct chnl_net, chnl);

	int pktlen;

	int err = 0;

	const u8 *ip_version;

	u8 buf;
@@ -95,8 +94,7 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt) 


	/* check the version of IP */

	ip_version = skb_header_pointer(skb, 0, 1, &buf);

	if (!ip_version)

		return -EINVAL;



	switch (*ip_version >> 4) {

	case 4:

		skb->protocol = htons(ETH_P_IP);
@@ -105,6 +103,7 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt) 
		skb->protocol = htons(ETH_P_IPV6);

		break;

	default:

		priv->netdev->stats.rx_errors++;

		return -EINVAL;

	}
@@ -123,7 +122,7 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt) 
	priv->netdev->stats.rx_packets++;

	priv->netdev->stats.rx_bytes += pktlen;



	return err;

	return 0;

}



static int delete_device(struct chnl_net *dev)
@@ -221,11 +220,13 @@ static int chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev) 


	if (skb->len > priv->netdev->mtu) {

		pr_warn("Size of skb exceeded MTU\n");

		dev->stats.tx_errors++;

		return -ENOSPC;

	}



	if (!priv->flowenabled) {

		pr_debug("dropping packets flow off\n");

		dev->stats.tx_dropped++;

		return NETDEV_TX_BUSY;

	}
@@ -240,8 +241,7 @@ static int chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev) 
	/* Send the packet down the stack. */

	result = priv->chnl.dn->transmit(priv->chnl.dn, pkt);

	if (result) {

		if (result == -EAGAIN)

			result = NETDEV_TX_BUSY;

		dev->stats.tx_dropped++;

		return result;

	}