CAN (Controller Area Network ) bus support in RHEL7 kernel.

Issue

• CAN (Controller Area Network ) is a basic protocol
• In Red Hat Enterprise Linux 7 it is not enabled.
• CAN was enable in Red Hat Enterprise Linux 6 and we discovered this issue during our upgrade test.
• Would Red Hat consider re-enabling it on a future Red Hat Enterprise Linux 7 kernel ?
• We would need the following options:

CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
CONFIG_CAN_VCAN=m
CONFIG_CAN_DEV=m
CONFIG_CAN_CALC_BITTIMING=y

• We have around 150 machines affected, at this time they run Red Hat Enterprise Linux 6.

• Current Red Hat Enterprise Linux 6 kernel config

# cat /boot/config-2.6.32-573.12.1.el6.x86_64  | grep _CAN_
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
CONFIG_CAN_VCAN=m
CONFIG_CAN_DEV=m
CONFIG_CAN_CALC_BITTIMING=y
CONFIG_CAN_SJA1000=m
CONFIG_CAN_SJA1000_PLATFORM=m
CONFIG_CAN_EMS_PCI=m
CONFIG_CAN_KVASER_PCI=m
CONFIG_CAN_EMS_USB=m
CONFIG_CAN_DEBUG_DEVICES=y