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can: dev: let can_get_echo_skb() return dlc of CAN frame

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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>
This commit is contained in:
Marc Kleine-Budde
2011-10-10 23:43:53 +02:00
parent f84cbda06f
commit cf5046b309
2 changed files with 10 additions and 2 deletions
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include/linux/can/dev.h
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@@ -92,7 +92,7 @@ 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);