NF_CT_EXT_TSTAMP
return nf_ct_ext_find(ct, NF_CT_EXT_TSTAMP);
return nf_ct_ext_add(ct, NF_CT_EXT_TSTAMP, gfp);
if (nf_ct_ext_exist(ct, NF_CT_EXT_TSTAMP))
[NF_CT_EXT_TSTAMP] = sizeof(struct nf_conn_tstamp),
if (!nf_ct_ext_exist(ct, NF_CT_EXT_TSTAMP))