ifr_mtu           168 include/linux/if_ppp.h #if !defined(ifr_mtu)
ifr_mtu          3523 net/core/dev.c 			ifr->ifr_mtu = dev->mtu;
ifr_mtu          3588 net/core/dev.c 			return dev_set_mtu(dev, ifr->ifr_mtu);