__nfct_init_offset 90 include/net/netfilter/nf_conntrack.h struct { } __nfct_init_offset; __nfct_init_offset 1384 net/netfilter/nf_conntrack_core.c memset(&ct->__nfct_init_offset, 0, __nfct_init_offset 1386 net/netfilter/nf_conntrack_core.c offsetof(struct nf_conn, __nfct_init_offset));