socketcan_gs_usb/can_change_mtu.c
2016-04-23 23:26:36 +02:00

13 lines
287 B
C

#include <linux/netdevice.h>
#pragma weak can_change_mtu
int can_change_mtu(struct net_device *dev, int new_mtu)
{
/* Do not allow changing the MTU while running */
if (dev->flags & IFF_UP)
return -EBUSY;
dev->mtu = new_mtu;
return 0;
}