__nf_ct_try_assign_helper
int __nf_ct_try_assign_helper(struct nf_conn *ct, struct nf_conn *tmpl,
__nf_ct_try_assign_helper(ct, tmpl, GFP_ATOMIC);
EXPORT_SYMBOL_GPL(__nf_ct_try_assign_helper);
int err = __nf_ct_try_assign_helper(ct, info->ct,
err = __nf_ct_try_assign_helper(ct, p->tmpl, GFP_ATOMIC);