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authorLennert Buytenhek <buytenh@marvell.com>2008-11-20 03:58:46 -0800
committerDavid S. Miller <davem@davemloft.net>2008-11-20 03:58:46 -0800
commitf61e5547763338b793ed291f3de3130216d00430 (patch)
treea797f1b73ad2f6a596be7cef845c67cb086a2e5b
parent66e63ffbc04706568d8789cbb00eaa8ddbcae648 (diff)
mv643xx_eth: move receive error handling out of line
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/mv643xx_eth.c55
1 files changed, 29 insertions, 26 deletions
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 9f3ee7d6a5b..d56724add17 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -543,35 +543,38 @@ static int rxq_process(struct rx_queue *rxq, int budget)
* on, or the error summary bit is set, the packet needs
* to be dropped.
*/
- if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
- (RX_FIRST_DESC | RX_LAST_DESC))
- || (cmd_sts & ERROR_SUMMARY)) {
- stats->rx_dropped++;
-
- if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
- (RX_FIRST_DESC | RX_LAST_DESC)) {
- if (net_ratelimit())
- dev_printk(KERN_ERR, &mp->dev->dev,
- "received packet spanning "
- "multiple descriptors\n");
- }
+ if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC | ERROR_SUMMARY))
+ != (RX_FIRST_DESC | RX_LAST_DESC))
+ goto err;
- if (cmd_sts & ERROR_SUMMARY)
- stats->rx_errors++;
+ /*
+ * The -4 is for the CRC in the trailer of the
+ * received packet
+ */
+ skb_put(skb, byte_cnt - 2 - 4);
- dev_kfree_skb(skb);
- } else {
- /*
- * The -4 is for the CRC in the trailer of the
- * received packet
- */
- skb_put(skb, byte_cnt - 2 - 4);
-
- if (cmd_sts & LAYER_4_CHECKSUM_OK)
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->protocol = eth_type_trans(skb, mp->dev);
- netif_receive_skb(skb);
+ if (cmd_sts & LAYER_4_CHECKSUM_OK)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->protocol = eth_type_trans(skb, mp->dev);
+ netif_receive_skb(skb);
+
+ continue;
+
+err:
+ stats->rx_dropped++;
+
+ if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
+ (RX_FIRST_DESC | RX_LAST_DESC)) {
+ if (net_ratelimit())
+ dev_printk(KERN_ERR, &mp->dev->dev,
+ "received packet spanning "
+ "multiple descriptors\n");
}
+
+ if (cmd_sts & ERROR_SUMMARY)
+ stats->rx_errors++;
+
+ dev_kfree_skb(skb);
}
if (rx < budget)