lower_header_len 530 net/batman-adv/hard-interface.c unsigned short lower_header_len = ETH_HLEN; lower_header_len 543 net/batman-adv/hard-interface.c lower_header_len = max_t(unsigned short, lower_header_len, lower_header_len 554 net/batman-adv/hard-interface.c needed_headroom = lower_headroom + (lower_header_len - ETH_HLEN);