IR_MRAF
if (cdev->version <= 31 && irqstatus & IR_MRAF &&
m_can_write(cdev, M_CAN_IR, IR_MRAF);
irqstatus &= ~IR_MRAF;
IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | IR_RF1L | \
IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | IR_RF1L | \
if (irqstatus & IR_MRAF)