can: Unify MTU settings for CAN interfaces

[mirror_ubuntu-bionic-kernel.git] / drivers / net / can / slcan.c

diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index 3fcdae266377a8141546f239ff805160d6cadbb9..f5b16e0e3a125f4e38a93408e92b8218808339af 100644 (file)
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -411,10 +411,16 @@ static void slc_free_netdev(struct net_device *dev)
        slcan_devs[i] = NULL;
 }
 
+static int slcan_change_mtu(struct net_device *dev, int new_mtu)
+{
+       return -EINVAL;
+}
+
 static const struct net_device_ops slc_netdev_ops = {
        .ndo_open               = slc_open,
        .ndo_stop               = slc_close,
        .ndo_start_xmit         = slc_xmit,
+       .ndo_change_mtu         = slcan_change_mtu,
 };
 
 static void slc_setup(struct net_device *dev)