diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2011-10-10 23:43:53 +0200 |
|---|---|---|
| committer | Dong Aisheng <b29396@freescale.com> | 2013-04-16 14:34:58 +0800 |
| commit | 94108194acb45f6cc488c9ff4e8d561c113f6409 (patch) | |
| tree | 645c059632479fd10f97ec8d2cf7aa57eefe99b6 | |
| parent | 25af3594148e6ab16ad0d86b36cded7200c880d2 (diff) | |
can: dev: let can_get_echo_skb() return dlc of CAN frame
can_get_echo_skb() is usually called in the TX complete handler.
The stats->tx_packets and stats->tx_bytes should be updated there, too.
This patch simplifies to figure out the size of the sent CAN frame.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
| -rw-r--r-- | drivers/net/can/dev.c | 10 | ||||
| -rw-r--r-- | include/linux/can/dev.h | 2 |
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index d0f8c7e67e7d..f0123ef7d89d 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -315,16 +315,24 @@ EXPORT_SYMBOL_GPL(can_put_echo_skb); * is handled in the device driver. The driver must protect * access to priv->echo_skb, if necessary. */ -void can_get_echo_skb(struct net_device *dev, unsigned int idx) +unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx) { struct can_priv *priv = netdev_priv(dev); BUG_ON(idx >= priv->echo_skb_max); if (priv->echo_skb[idx]) { + struct sk_buff *skb = priv->echo_skb[idx]; + struct can_frame *cf = (struct can_frame *)skb->data; + u8 dlc = cf->can_dlc; + netif_rx(priv->echo_skb[idx]); priv->echo_skb[idx] = NULL; + + return dlc; } + + return 0; } EXPORT_SYMBOL_GPL(can_get_echo_skb); diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index cc0bb4961669..129dbee2c8d6 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -93,7 +93,7 @@ void can_bus_off(struct net_device *dev); void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev, unsigned int idx); -void can_get_echo_skb(struct net_device *dev, unsigned int idx); +unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx); void can_free_echo_skb(struct net_device *dev, unsigned int idx); struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf); |