EBT_NFLOG_PREFIX_SIZE 18 include/linux/netfilter_bridge/ebt_nflog.h char prefix[EBT_NFLOG_PREFIX_SIZE]; EBT_NFLOG_PREFIX_SIZE 44 net/bridge/netfilter/ebt_nflog.c info->prefix[EBT_NFLOG_PREFIX_SIZE - 1] = '\0';