dev_validate_mtu 3671 include/linux/netdevice.h int dev_validate_mtu(struct net_device *dev, int mtu,
dev_validate_mtu 8005 net/core/dev.c 	err = dev_validate_mtu(dev, new_mtu, extack);
dev_validate_mtu 2966 net/core/rtnetlink.c 		err = dev_validate_mtu(dev, mtu, extack);