netdev: bfin_mac: handler RX status errors
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -980,12 +980,25 @@ out:
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return NETDEV_TX_OK;
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}
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#define RX_ERROR_MASK (RX_LONG | RX_ALIGN | RX_CRC | RX_LEN | \
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RX_FRAG | RX_ADDR | RX_DMAO | RX_PHY | RX_LATE | RX_RANGE)
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static void bfin_mac_rx(struct net_device *dev)
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{
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struct sk_buff *skb, *new_skb;
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unsigned short len;
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struct bfin_mac_local *lp __maybe_unused = netdev_priv(dev);
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/* check if frame status word reports an error condition
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* we which case we simply drop the packet
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*/
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if (current_rx_ptr->status.status_word & RX_ERROR_MASK) {
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printk(KERN_NOTICE DRV_NAME
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": rx: receive error - packet dropped\n");
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dev->stats.rx_dropped++;
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goto out;
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}
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/* allocate a new skb for next time receive */
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skb = current_rx_ptr->skb;
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@ -1024,11 +1037,9 @@ static void bfin_mac_rx(struct net_device *dev)
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netif_rx(skb);
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dev->stats.rx_packets++;
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dev->stats.rx_bytes += len;
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out:
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current_rx_ptr->status.status_word = 0x00000000;
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current_rx_ptr = current_rx_ptr->next;
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out:
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return;
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}
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/* interrupt routine to handle rx and error signal */
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