[NETFILTER]: PPTP conntrack: remove unnecessary cid/pcid header pointers

Just the values are needed, not the memory locations.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv4/netfilter/ip_conntrack_helper_pptp.c

@@ -334,7 +334,7 @@ pptp_inbound_pkt(struct sk_buff **pskb,
 	union pptp_ctrl_union _pptpReq, *pptpReq;
 	struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
 	u_int16_t msg;
-	__be16 *cid, *pcid;
+	__be16 cid, pcid;
 
 	ctlh = skb_header_pointer(*pskb, nexthdr_off, sizeof(_ctlh), &_ctlh);
 	if (!ctlh) {
@@ -414,23 +414,23 @@ pptp_inbound_pkt(struct sk_buff **pskb,
 			break;
 		}
 
-		cid = &pptpReq->ocack.callID;
-		pcid = &pptpReq->ocack.peersCallID;
+		cid = pptpReq->ocack.callID;
+		pcid = pptpReq->ocack.peersCallID;
 
-		info->pac_call_id = *cid;
+		info->pac_call_id = cid;
 
-		if (info->pns_call_id != *pcid) {
+		if (info->pns_call_id != pcid) {
 			DEBUGP("%s for unknown callid %u\n",
-				pptp_msg_name[msg], ntohs(*pcid));
+				pptp_msg_name[msg], ntohs(pcid));
 			break;
 		}
 
 		DEBUGP("%s, CID=%X, PCID=%X\n", pptp_msg_name[msg],
-			ntohs(*cid), ntohs(*pcid));
+			ntohs(cid), ntohs(pcid));
 
 		info->cstate = PPTP_CALL_OUT_CONF;
 
-		exp_gre(ct, *cid, *pcid);
+		exp_gre(ct, cid, pcid);
 		break;
 
 	case PPTP_IN_CALL_REQUEST:
@@ -444,10 +444,10 @@ pptp_inbound_pkt(struct sk_buff **pskb,
 			DEBUGP("%s but no session\n", pptp_msg_name[msg]);
 			break;
 		}
-		pcid = &pptpReq->icack.peersCallID;
-		DEBUGP("%s, PCID=%X\n", pptp_msg_name[msg], ntohs(*pcid));
+		pcid = pptpReq->icack.peersCallID;
+		DEBUGP("%s, PCID=%X\n", pptp_msg_name[msg], ntohs(pcid));
 		info->cstate = PPTP_CALL_IN_REQ;
-		info->pac_call_id = *pcid;
+		info->pac_call_id = pcid;
 		break;
 
 	case PPTP_IN_CALL_CONNECT:
@@ -468,20 +468,20 @@ pptp_inbound_pkt(struct sk_buff **pskb,
 			break;
 		}
 
-		pcid = &pptpReq->iccon.peersCallID;
-		cid = &info->pac_call_id;
+		pcid = pptpReq->iccon.peersCallID;
+		cid = info->pac_call_id;
 
-		if (info->pns_call_id != *pcid) {
+		if (info->pns_call_id != pcid) {
 			DEBUGP("%s for unknown CallID %u\n",
-				pptp_msg_name[msg], ntohs(*pcid));
+				pptp_msg_name[msg], ntohs(pcid));
 			break;
 		}
 
-		DEBUGP("%s, PCID=%X\n", pptp_msg_name[msg], ntohs(*pcid));
+		DEBUGP("%s, PCID=%X\n", pptp_msg_name[msg], ntohs(pcid));
 		info->cstate = PPTP_CALL_IN_CONF;
 
 		/* we expect a GRE connection from PAC to PNS */
-		exp_gre(ct, *cid, *pcid);
+		exp_gre(ct, cid, pcid);
 		break;
 
 	case PPTP_CALL_DISCONNECT_NOTIFY:
@@ -491,8 +491,8 @@ pptp_inbound_pkt(struct sk_buff **pskb,
 		}
 
 		/* server confirms disconnect */
-		cid = &pptpReq->disc.callID;
-		DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(*cid));
+		cid = pptpReq->disc.callID;
+		DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(cid));
 		info->cstate = PPTP_CALL_NONE;
 
 		/* untrack this call id, unexpect GRE packets */
@@ -534,7 +534,7 @@ pptp_outbound_pkt(struct sk_buff **pskb,
 	union pptp_ctrl_union _pptpReq, *pptpReq;
 	struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
 	u_int16_t msg;
-	__be16 *cid, *pcid;
+	__be16 cid, pcid;
 
 	ctlh = skb_header_pointer(*pskb, nexthdr_off, sizeof(_ctlh), &_ctlh);
 	if (!ctlh)
@@ -580,9 +580,9 @@ pptp_outbound_pkt(struct sk_buff **pskb,
 		}
 		info->cstate = PPTP_CALL_OUT_REQ;
 		/* track PNS call id */
-		cid = &pptpReq->ocreq.callID;
-		DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(*cid));
-		info->pns_call_id = *cid;
+		cid = pptpReq->ocreq.callID;
+		DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(cid));
+		info->pns_call_id = cid;
 		break;
 	case PPTP_IN_CALL_REPLY:
 		if (reqlen < sizeof(_pptpReq.icack)) {
@@ -601,16 +601,16 @@ pptp_outbound_pkt(struct sk_buff **pskb,
 			info->cstate = PPTP_CALL_NONE;
 			break;
 		}
-		pcid = &pptpReq->icack.peersCallID;
-		if (info->pac_call_id != *pcid) {
+		pcid = pptpReq->icack.peersCallID;
+		if (info->pac_call_id != pcid) {
 			DEBUGP("%s for unknown call %u\n",
-				pptp_msg_name[msg], ntohs(*pcid));
+				pptp_msg_name[msg], ntohs(pcid));
 			break;
 		}
-		DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(*pcid));
+		DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(pcid));
 		/* part two of the three-way handshake */
 		info->cstate = PPTP_CALL_IN_REP;
-		info->pns_call_id = pptpReq->icack.callID;
+		info->pns_call_id = pcid;
 		break;
 
 	case PPTP_CALL_CLEAR_REQUEST: