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authorWolfgang Grandegger <wg@grandegger.com>2009-09-01 05:29:41 +0000
committerDavid S. Miller <davem@davemloft.net>2009-09-04 02:16:15 -0700
commit8935f57e68c40c6469efe03f996bfb6150e18c6b (patch)
tree2e9467085839fff453d7760bf2623bb2a4a02117
parent39e3ab6fded4d7e66e01a878f0cae23ddd480c3b (diff)
can: sja1000: fix network statistics update
The member "tx_bytes" of "struct net_device_stats" should be incremented when the interrupt is done and an "arbitration lost error" is a TX error and the statistics should be updated accordingly. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/can/sja1000/sja1000.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index fd7fa716a6ca..16d2ecd2a3b7 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -242,7 +242,6 @@ static netdev_tx_t sja1000_start_xmit(struct sk_buff *skb,
struct net_device *dev)
{
struct sja1000_priv *priv = netdev_priv(dev);
- struct net_device_stats *stats = &dev->stats;
struct can_frame *cf = (struct can_frame *)skb->data;
uint8_t fi;
uint8_t dlc;
@@ -276,7 +275,6 @@ static netdev_tx_t sja1000_start_xmit(struct sk_buff *skb,
for (i = 0; i < dlc; i++)
priv->write_reg(priv, dreg++, cf->data[i]);
- stats->tx_bytes += dlc;
dev->trans_start = jiffies;
can_put_echo_skb(skb, dev, 0);
@@ -427,7 +425,7 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status)
dev_dbg(dev->dev.parent, "arbitration lost interrupt\n");
alc = priv->read_reg(priv, REG_ALC);
priv->can.can_stats.arbitration_lost++;
- stats->rx_errors++;
+ stats->tx_errors++;
cf->can_id |= CAN_ERR_LOSTARB;
cf->data[0] = alc & 0x1f;
}
@@ -484,6 +482,7 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id)
if (isrc & IRQ_TI) {
/* transmission complete interrupt */
+ stats->tx_bytes += priv->read_reg(priv, REG_FI) & 0xf;
stats->tx_packets++;
can_get_echo_skb(dev, 0);
netif_wake_queue(dev);