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authorOliver Hartkopp <socketcan@hartkopp.net>2017-06-02 19:37:30 +0200
committerMarc Kleine-Budde <mkl@pengutronix.de>2017-06-09 14:39:02 +0200
commit97edec3a11cf6f73f2e45c3035b5ff8e4c3543dd (patch)
tree4231aed948a530fa6d91b9be50b072f84fdf02bf /drivers/net/can
parent74b7b490886852582d986a33443c2ffa50970169 (diff)
downloadop-kernel-dev-97edec3a11cf6f73f2e45c3035b5ff8e4c3543dd.zip
op-kernel-dev-97edec3a11cf6f73f2e45c3035b5ff8e4c3543dd.tar.gz
can: enable CAN FD for virtual CAN devices by default
CAN FD capable CAN interfaces can handle (classic) CAN 2.0 frames too. New users usually fail at their first attempt to explore CAN FD on virtual CAN interfaces due to the current CAN_MTU default. Set the MTU to CANFD_MTU by default to reduce this confusion. If someone *really* needs a 'classic CAN'-only device this can be set with the 'ip' tool with e.g. 'ip link set vcan0 mtu 16' as before. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can')
-rw-r--r--drivers/net/can/vcan.c2
-rw-r--r--drivers/net/can/vxcan.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/can/vcan.c b/drivers/net/can/vcan.c
index 0eda1b3..a8cb332 100644
--- a/drivers/net/can/vcan.c
+++ b/drivers/net/can/vcan.c
@@ -152,7 +152,7 @@ static const struct net_device_ops vcan_netdev_ops = {
static void vcan_setup(struct net_device *dev)
{
dev->type = ARPHRD_CAN;
- dev->mtu = CAN_MTU;
+ dev->mtu = CANFD_MTU;
dev->hard_header_len = 0;
dev->addr_len = 0;
dev->tx_queue_len = 0;
diff --git a/drivers/net/can/vxcan.c b/drivers/net/can/vxcan.c
index 30cf236..cfe889e 100644
--- a/drivers/net/can/vxcan.c
+++ b/drivers/net/can/vxcan.c
@@ -150,7 +150,7 @@ static const struct net_device_ops vxcan_netdev_ops = {
static void vxcan_setup(struct net_device *dev)
{
dev->type = ARPHRD_CAN;
- dev->mtu = CAN_MTU;
+ dev->mtu = CANFD_MTU;
dev->hard_header_len = 0;
dev->addr_len = 0;
dev->tx_queue_len = 0;
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