diff options
| author | sjur.brandeland@stericsson.com <sjur.brandeland@stericsson.com> | 2012-02-03 04:36:20 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-02-04 16:06:27 -0500 |
| commit | 576f3cc7fb94a22df2ced8dcba7d48ff42f8e745 (patch) | |
| tree | fc3a7f3837a1730e1bd872eb0c6e307e7ccceb3c /net/caif/chnl_net.c | |
| parent | 4a695823b580124c3ab750d8d528f7c6522628c3 (diff) | |
| download | linux-576f3cc7fb94a22df2ced8dcba7d48ff42f8e745.tar.gz | |
caif: Add drop count for caif_net device.
Count dropped packets in CAIF Netdevice. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/caif/chnl_net.c')
| -rw-r--r-- | net/caif/chnl_net.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c index 865690948bbc..a751d9b263ed 100644 --- a/net/caif/chnl_net.c +++ b/net/caif/chnl_net.c @@ -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; } |