if (ret < 0)
pr_info("cannot load conntrack support for proto=%u\n",
par->family);
+
+ /*
+ * This filter cannot function correctly unless connection tracking
+ * accounting is enabled, so complain in the hope that someone notices.
+ */
+ if (!nf_ct_acct_enabled(par->net)) {
+ pr_warning("Forcing CT accounting to be enabled\n");
+ nf_ct_set_acct(par->net, true);
+ }
+
return ret;
}