hlist_nulls_add_head 131 net/ipv4/ping.c hlist_nulls_add_head(&sk->sk_nulls_node, hlist); hlist_nulls_add_head 504 net/netfilter/nf_conntrack_core.c hlist_nulls_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode, hlist_nulls_add_head 519 net/netfilter/nf_conntrack_core.c hlist_nulls_add_head(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode,