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Commit c971fa2a authored by Oliver Hartkopp's avatar Oliver Hartkopp Committed by Marc Kleine-Budde
Browse files

can: Unify MTU settings for CAN interfaces 



CAN interfaces only support MTU values of 16 (CAN 2.0) and 72 (CAN FD).
Setting the MTU to other values is pointless but it does not really hurt.
With the introduction of the CAN FD support in drivers/net/can a new
function to switch the MTU for CAN FD has been introduced.

This patch makes use of this can_change_mtu() function to check for correct
MTU settings also in legacy CAN (2.0) devices.

Signed-off-by: default avatarOliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent e7ef085d

drivers/net/can/at91_can.c

+1 −0
Original line number Diff line number Diff line
@@ -1194,6 +1194,7 @@ static const struct net_device_ops at91_netdev_ops = { 
	.ndo_open	= at91_open,

	.ndo_stop	= at91_close,

	.ndo_start_xmit	= at91_start_xmit,

	.ndo_change_mtu = can_change_mtu,

};



static ssize_t at91_sysfs_show_mb0_id(struct device *dev,

drivers/net/can/bfin_can.c

+1 −0
Original line number Diff line number Diff line
@@ -528,6 +528,7 @@ static const struct net_device_ops bfin_can_netdev_ops = { 
	.ndo_open               = bfin_can_open,

	.ndo_stop               = bfin_can_close,

	.ndo_start_xmit         = bfin_can_start_xmit,

	.ndo_change_mtu         = can_change_mtu,

};



static int bfin_can_probe(struct platform_device *pdev)

drivers/net/can/c_can/c_can.c

+1 −0
Original line number Diff line number Diff line
@@ -1277,6 +1277,7 @@ static const struct net_device_ops c_can_netdev_ops = { 
	.ndo_open = c_can_open,

	.ndo_stop = c_can_close,

	.ndo_start_xmit = c_can_start_xmit,

	.ndo_change_mtu = can_change_mtu,

};



int register_c_can_dev(struct net_device *dev)

drivers/net/can/cc770/cc770.c

+1 −0
Original line number Diff line number Diff line
@@ -823,6 +823,7 @@ static const struct net_device_ops cc770_netdev_ops = { 
	.ndo_open = cc770_open,

	.ndo_stop = cc770_close,

	.ndo_start_xmit = cc770_start_xmit,

	.ndo_change_mtu = can_change_mtu,

};



int register_cc770dev(struct net_device *dev)

drivers/net/can/flexcan.c

+1 −0
Original line number Diff line number Diff line
@@ -1011,6 +1011,7 @@ static const struct net_device_ops flexcan_netdev_ops = { 
	.ndo_open	= flexcan_open,

	.ndo_stop	= flexcan_close,

	.ndo_start_xmit	= flexcan_start_xmit,

	.ndo_change_mtu = can_change_mtu,

};



static int register_flexcandev(struct net_device *dev)