The size of this structure will be increased with J1939 support. To stay
binary compatible, the CAN_REQUIRED_SIZE macro is introduced for
existing CAN protocols.
Signed-off-by: NKurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: NOleksij Rempel <o.rempel@pengutronix.de>
Acked-by: NOliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>