lower_tailroom    532 net/batman-adv/hard-interface.c 	unsigned short lower_tailroom = 0;
lower_tailroom    549 net/batman-adv/hard-interface.c 		lower_tailroom = max_t(unsigned short, lower_tailroom,
lower_tailroom    558 net/batman-adv/hard-interface.c 	soft_iface->needed_tailroom = lower_tailroom;