drivers/net/can/m_can/Kconfig - kernel/lockdown - Git at Google

 config CAN_M_CAN
 	depends on HAS_IOMEM
 	tristate "Bosch M_CAN devices"
 	---help---
 	  Say Y here if you want to support for Bosch M_CAN controller.
	config CAN_M_CAN
	depends on HAS_IOMEM
	tristate "Bosch M_CAN devices"
	---help---
	Say Y here if you want to support for Bosch M_CAN controller.