hook_ref6 26 include/net/netfilter/nf_synproxy.h unsigned int hook_ref6; hook_ref6 1215 net/netfilter/nf_synproxy_core.c if (snet->hook_ref6 == 0) { hook_ref6 1222 net/netfilter/nf_synproxy_core.c snet->hook_ref6++; hook_ref6 1230 net/netfilter/nf_synproxy_core.c snet->hook_ref6--; hook_ref6 1231 net/netfilter/nf_synproxy_core.c if (snet->hook_ref6 == 0)