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-rw-r--r--net/caif/chnl_net.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c
index 8656909..a751d9b 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;
}
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