On 11.07.2022 20:34:23, Oliver Hartkopp wrote:
> Enable the PF_CAN infrastructure to handle CAN XL frames. A new ethernet
> protocol type ETH_P_CANXL is defined to tag skbuffs containing the CAN XL
> frame data structure.
>
> As the length information is now a uint16 value for CAN XL a new helper
> function can_get_data_len() is introduced to retrieve the data length
> from all types of CAN frames.
>
> Signed-off-by: Oliver Hartkopp <socketcan@xxxxxxxxxxxx>
> ---
> include/linux/can/skb.h | 14 ++++++++++
> include/uapi/linux/if_ether.h | 1 +
> net/can/af_can.c | 49 +++++++++++++++++++++++++++++------
> 3 files changed, 56 insertions(+), 8 deletions(-)
>
> diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h
> index 182749e858b3..d043bc4afd6d 100644
> --- a/include/linux/can/skb.h
> +++ b/include/linux/can/skb.h
> @@ -101,6 +101,20 @@ static inline bool can_is_canfd_skb(const struct sk_buff *skb)
> {
> /* the CAN specific type of skb is identified by its data length */
> return skb->len == CANFD_MTU;
> }
>
> +/* get data length inside of CAN frame for all frame types */
> +static inline unsigned int can_get_data_len(struct sk_buff *skb)
> +{
> + if(skb->len == CANXL_MTU) {
^^^ add space
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Embedded Linux | https://www.pengutronix.de |
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