The macros get_can_dlc() and get_canfd_dlc() are not visible in userland. As such, type u8 should be preferred over type __u8.
Reference: https://lkml.org/lkml/2020/10/1/708 Signed-off-by: Vincent Mailhol <mailhol.vinc...@wanadoo.fr> --- include/linux/can/dev.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 5e3d45525bd3..132b4133f9d0 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -84,13 +84,13 @@ struct can_priv { /* * get_can_dlc(value) - helper macro to cast a given data length code (dlc) - * to __u8 and ensure the dlc value to be max. 8 bytes. + * to u8 and ensure the dlc value to be max. 8 bytes. * * To be used in the CAN netdriver receive path to ensure conformance with * ISO 11898-1 Chapter 8.4.2.3 (DLC field) */ -#define get_can_dlc(i) (min_t(__u8, (i), CAN_MAX_DLC)) -#define get_canfd_dlc(i) (min_t(__u8, (i), CANFD_MAX_DLC)) +#define get_can_dlc(i) (min_t(u8, (i), CAN_MAX_DLC)) +#define get_canfd_dlc(i) (min_t(u8, (i), CANFD_MAX_DLC)) /* Check for outgoing skbs that have not been created by the CAN subsystem */ static inline bool can_skb_headroom_valid(struct net_device *dev, -- 2.26.2
