diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2021-01-11 15:19:28 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2021-01-14 08:43:43 +0100 |
| commit | 9420e1d495e2a3b5f673148b7e3ebc861b1441f7 (patch) | |
| tree | 163045006f6f0698fc1a0e86281cde7c79b13b32 /include/linux/can | |
| parent | 1dcb6e57db833419483d0df2d956b1cc2a802683 (diff) | |
can: dev: can_get_echo_skb(): extend to return can frame length
In order to implement byte queue limits (bql) in CAN drivers, the length of the
CAN frame needs to be passed into the networking stack after queueing and after
transmission completion.
To avoid to calculate this length twice, extend can_get_echo_skb() to return
that value. Convert all users of this function, too.
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/r/20210111141930.693847-14-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'include/linux/can')
| -rw-r--r-- | include/linux/can/skb.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h index eaac4a637ae0..685f34cfba20 100644 --- a/include/linux/can/skb.h +++ b/include/linux/can/skb.h @@ -21,7 +21,8 @@ int can_put_echo_skb(struct sk_buff *skb, struct net_device *dev, unsigned int idx, unsigned int frame_len); struct sk_buff *__can_get_echo_skb(struct net_device *dev, unsigned int idx, u8 *len_ptr, unsigned int *frame_len_ptr); -unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx); +unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx, + unsigned int *frame_len_ptr); 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); struct sk_buff *alloc_canfd_skb(struct net_device *dev, |