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can: Unify MTU settings for CAN interfaces

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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: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Oliver Hartkopp
2014-03-07 09:23:41 +01:00
committed by Marc Kleine-Budde
parent e7ef085d0a
commit c971fa2ae4
19 changed files with 30 additions and 6 deletions
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7
drivers/net/can/sja1000/sja1000.c
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@@ -642,9 +642,10 @@ void free_sja1000dev(struct net_device *dev)
EXPORT_SYMBOL_GPL(free_sja1000dev);
static const struct net_device_ops sja1000_netdev_ops = {
.ndo_open = sja1000_open,
.ndo_stop = sja1000_close,
.ndo_start_xmit = sja1000_start_xmit,
.ndo_open = sja1000_open,
.ndo_stop = sja1000_close,
.ndo_start_xmit = sja1000_start_xmit,
.ndo_change_mtu = can_change_mtu,
};
int register_sja1000dev(struct net_device *dev)