*related = 1;
 
        /* reassemble IP fragments */
-       if (skb->nh.iph->frag_off & __constant_htons(IP_MF|IP_OFFSET)) {
+       if (skb->nh.iph->frag_off & htons(IP_MF|IP_OFFSET)) {
                skb = ip_vs_gather_frags(skb, IP_DEFRAG_VS_OUT);
                if (!skb)
                        return NF_STOLEN;
                return NF_ACCEPT;
 
        /* Is the embedded protocol header present? */
-       if (unlikely(cih->frag_off & __constant_htons(IP_OFFSET) &&
+       if (unlikely(cih->frag_off & htons(IP_OFFSET) &&
                     pp->dont_defrag))
                return NF_ACCEPT;
 
                return NF_ACCEPT;
 
        /* reassemble IP fragments */
-       if (unlikely(iph->frag_off & __constant_htons(IP_MF|IP_OFFSET) &&
+       if (unlikely(iph->frag_off & htons(IP_MF|IP_OFFSET) &&
                     !pp->dont_defrag)) {
                skb = ip_vs_gather_frags(skb, IP_DEFRAG_VS_OUT);
                if (!skb)
        *related = 1;
 
        /* reassemble IP fragments */
-       if (skb->nh.iph->frag_off & __constant_htons(IP_MF|IP_OFFSET)) {
+       if (skb->nh.iph->frag_off & htons(IP_MF|IP_OFFSET)) {
                skb = ip_vs_gather_frags(skb,
                                         hooknum == NF_IP_LOCAL_IN ?
                                         IP_DEFRAG_VS_IN : IP_DEFRAG_VS_FWD);
                return NF_ACCEPT;
 
        /* Is the embedded protocol header present? */
-       if (unlikely(cih->frag_off & __constant_htons(IP_OFFSET) &&
+       if (unlikely(cih->frag_off & htons(IP_OFFSET) &&
                     pp->dont_defrag))
                return NF_ACCEPT;
 
 
        if (likely(!inverse)) {
                cp = ip_vs_conn_in_get(IPPROTO_UDP,
                                       iph->saddr,
-                                      __constant_htons(PORT_ISAKMP),
+                                      htons(PORT_ISAKMP),
                                       iph->daddr,
-                                      __constant_htons(PORT_ISAKMP));
+                                      htons(PORT_ISAKMP));
        } else {
                cp = ip_vs_conn_in_get(IPPROTO_UDP,
                                       iph->daddr,
-                                      __constant_htons(PORT_ISAKMP),
+                                      htons(PORT_ISAKMP),
                                       iph->saddr,
-                                      __constant_htons(PORT_ISAKMP));
+                                      htons(PORT_ISAKMP));
        }
 
        if (!cp) {
        if (likely(!inverse)) {
                cp = ip_vs_conn_out_get(IPPROTO_UDP,
                                        iph->saddr,
-                                       __constant_htons(PORT_ISAKMP),
+                                       htons(PORT_ISAKMP),
                                        iph->daddr,
-                                       __constant_htons(PORT_ISAKMP));
+                                       htons(PORT_ISAKMP));
        } else {
                cp = ip_vs_conn_out_get(IPPROTO_UDP,
                                        iph->daddr,
-                                       __constant_htons(PORT_ISAKMP),
+                                       htons(PORT_ISAKMP),
                                        iph->saddr,
-                                       __constant_htons(PORT_ISAKMP));
+                                       htons(PORT_ISAKMP));
        }
 
        if (!cp) {
 
 
        /* MTU checking */
        mtu = dst_mtu(&rt->u.dst);
-       if ((skb->len > mtu) && (iph->frag_off&__constant_htons(IP_DF))) {
+       if ((skb->len > mtu) && (iph->frag_off & htons(IP_DF))) {
                ip_rt_put(rt);
                icmp_send(skb, ICMP_DEST_UNREACH,ICMP_FRAG_NEEDED, htonl(mtu));
                IP_VS_DBG_RL("ip_vs_bypass_xmit(): frag needed\n");
 
        /* MTU checking */
        mtu = dst_mtu(&rt->u.dst);
-       if ((skb->len > mtu) && (iph->frag_off&__constant_htons(IP_DF))) {
+       if ((skb->len > mtu) && (iph->frag_off & htons(IP_DF))) {
                ip_rt_put(rt);
                icmp_send(skb, ICMP_DEST_UNREACH,ICMP_FRAG_NEEDED, htonl(mtu));
                IP_VS_DBG_RL_PKT(0, pp, skb, 0, "ip_vs_nat_xmit(): frag needed for");
 
        EnterFunction(10);
 
-       if (skb->protocol != __constant_htons(ETH_P_IP)) {
+       if (skb->protocol != htons(ETH_P_IP)) {
                IP_VS_DBG_RL("ip_vs_tunnel_xmit(): protocol error, "
                             "ETH_P_IP: %d, skb protocol: %d\n",
-                            __constant_htons(ETH_P_IP), skb->protocol);
+                            htons(ETH_P_IP), skb->protocol);
                goto tx_error;
        }
 
        if (skb->dst)
                skb->dst->ops->update_pmtu(skb->dst, mtu);
 
-       df |= (old_iph->frag_off&__constant_htons(IP_DF));
+       df |= (old_iph->frag_off & htons(IP_DF));
 
-       if ((old_iph->frag_off&__constant_htons(IP_DF))
+       if ((old_iph->frag_off & htons(IP_DF))
            && mtu < ntohs(old_iph->tot_len)) {
                icmp_send(skb, ICMP_DEST_UNREACH,ICMP_FRAG_NEEDED, htonl(mtu));
                ip_rt_put(rt);
 
        /* MTU checking */
        mtu = dst_mtu(&rt->u.dst);
-       if ((iph->frag_off&__constant_htons(IP_DF)) && skb->len > mtu) {
+       if ((iph->frag_off & htons(IP_DF)) && skb->len > mtu) {
                icmp_send(skb, ICMP_DEST_UNREACH,ICMP_FRAG_NEEDED, htonl(mtu));
                ip_rt_put(rt);
                IP_VS_DBG_RL("ip_vs_dr_xmit(): frag needed\n");
 
        /* MTU checking */
        mtu = dst_mtu(&rt->u.dst);
-       if ((skb->len > mtu) && (skb->nh.iph->frag_off&__constant_htons(IP_DF))) {
+       if ((skb->len > mtu) && (skb->nh.iph->frag_off & htons(IP_DF))) {
                ip_rt_put(rt);
                icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu));
                IP_VS_DBG_RL("ip_vs_in_icmp(): frag needed\n");