[NETFILTER]: Replace sk_buff ** with sk_buff *

With all the users of the double pointers removed, this patch mops up by
finally replacing all occurances of sk_buff ** in the netfilter API by
sk_buff *.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 86 insertions, 102 deletions

diff --git a/net/ipv4/ipvs/ip_vs_app.c b/net/ipv4/ipvs/ip_vs_app.c
index 8ca5f48..664cb8e 100644
--- a/net/ipv4/ipvs/ip_vs_app.c
+++ b/net/ipv4/ipvs/ip_vs_app.c
@@ -329,18 +329,18 @@ static inline void vs_seq_update(struct ip_vs_conn *cp, struct ip_vs_seq *vseq,
 	spin_unlock(&cp->lock);
 }
 
-static inline int app_tcp_pkt_out(struct ip_vs_conn *cp, struct sk_buff **pskb,
+static inline int app_tcp_pkt_out(struct ip_vs_conn *cp, struct sk_buff *skb,
 				  struct ip_vs_app *app)
 {
 	int diff;
-	const unsigned int tcp_offset = ip_hdrlen(*pskb);
+	const unsigned int tcp_offset = ip_hdrlen(skb);
 	struct tcphdr *th;
 	__u32 seq;
 
-	if (!skb_make_writable(*pskb, tcp_offset + sizeof(*th)))
+	if (!skb_make_writable(skb, tcp_offset + sizeof(*th)))
 		return 0;
 
-	th = (struct tcphdr *)(skb_network_header(*pskb) + tcp_offset);
+	th = (struct tcphdr *)(skb_network_header(skb) + tcp_offset);
 
 	/*
 	 *	Remember seq number in case this pkt gets resized
@@ -361,7 +361,7 @@ static inline int app_tcp_pkt_out(struct ip_vs_conn *cp, struct sk_buff **pskb,
 	if (app->pkt_out == NULL)
 		return 1;
 
-	if (!app->pkt_out(app, cp, pskb, &diff))
+	if (!app->pkt_out(app, cp, skb, &diff))
 		return 0;
 
 	/*
@@ -379,7 +379,7 @@ static inline int app_tcp_pkt_out(struct ip_vs_conn *cp, struct sk_buff **pskb,
  *	called by ipvs packet handler, assumes previously checked cp!=NULL
  *	returns false if it can't handle packet (oom)
  */
-int ip_vs_app_pkt_out(struct ip_vs_conn *cp, struct sk_buff **pskb)
+int ip_vs_app_pkt_out(struct ip_vs_conn *cp, struct sk_buff *skb)
 {
 	struct ip_vs_app *app;
 
@@ -392,7 +392,7 @@ int ip_vs_app_pkt_out(struct ip_vs_conn *cp, struct sk_buff **pskb)
 
 	/* TCP is complicated */
 	if (cp->protocol == IPPROTO_TCP)
-		return app_tcp_pkt_out(cp, pskb, app);
+		return app_tcp_pkt_out(cp, skb, app);
 
 	/*
 	 *	Call private output hook function
@@ -400,22 +400,22 @@ int ip_vs_app_pkt_out(struct ip_vs_conn *cp, struct sk_buff **pskb)
 	if (app->pkt_out == NULL)
 		return 1;
 
-	return app->pkt_out(app, cp, pskb, NULL);
+	return app->pkt_out(app, cp, skb, NULL);
 }
 
 
-static inline int app_tcp_pkt_in(struct ip_vs_conn *cp, struct sk_buff **pskb,
+static inline int app_tcp_pkt_in(struct ip_vs_conn *cp, struct sk_buff *skb,
 				 struct ip_vs_app *app)
 {
 	int diff;
-	const unsigned int tcp_offset = ip_hdrlen(*pskb);
+	const unsigned int tcp_offset = ip_hdrlen(skb);
 	struct tcphdr *th;
 	__u32 seq;
 
-	if (!skb_make_writable(*pskb, tcp_offset + sizeof(*th)))
+	if (!skb_make_writable(skb, tcp_offset + sizeof(*th)))
 		return 0;
 
-	th = (struct tcphdr *)(skb_network_header(*pskb) + tcp_offset);
+	th = (struct tcphdr *)(skb_network_header(skb) + tcp_offset);
 
 	/*
 	 *	Remember seq number in case this pkt gets resized
@@ -436,7 +436,7 @@ static inline int app_tcp_pkt_in(struct ip_vs_conn *cp, struct sk_buff **pskb,
 	if (app->pkt_in == NULL)
 		return 1;
 
-	if (!app->pkt_in(app, cp, pskb, &diff))
+	if (!app->pkt_in(app, cp, skb, &diff))
 		return 0;
 
 	/*
@@ -454,7 +454,7 @@ static inline int app_tcp_pkt_in(struct ip_vs_conn *cp, struct sk_buff **pskb,
  *	called by ipvs packet handler, assumes previously checked cp!=NULL.
  *	returns false if can't handle packet (oom).
  */
-int ip_vs_app_pkt_in(struct ip_vs_conn *cp, struct sk_buff **pskb)
+int ip_vs_app_pkt_in(struct ip_vs_conn *cp, struct sk_buff *skb)
 {
 	struct ip_vs_app *app;
 
@@ -467,7 +467,7 @@ int ip_vs_app_pkt_in(struct ip_vs_conn *cp, struct sk_buff **pskb)
 
 	/* TCP is complicated */
 	if (cp->protocol == IPPROTO_TCP)
-		return app_tcp_pkt_in(cp, pskb, app);
+		return app_tcp_pkt_in(cp, skb, app);
 
 	/*
 	 *	Call private input hook function
@@ -475,7 +475,7 @@ int ip_vs_app_pkt_in(struct ip_vs_conn *cp, struct sk_buff **pskb)
 	if (app->pkt_in == NULL)
 		return 1;
 
-	return app->pkt_in(app, cp, pskb, NULL);
+	return app->pkt_in(app, cp, skb, NULL);
 }
 
 
diff --git a/net/ipv4/ipvs/ip_vs_core.c b/net/ipv4/ipvs/ip_vs_core.c
index 09cac38..c6ed765 100644
--- a/net/ipv4/ipvs/ip_vs_core.c
+++ b/net/ipv4/ipvs/ip_vs_core.c
@@ -488,12 +488,12 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
  *      for VS/NAT.
  */
 static unsigned int ip_vs_post_routing(unsigned int hooknum,
-				       struct sk_buff **pskb,
+				       struct sk_buff *skb,
 				       const struct net_device *in,
 				       const struct net_device *out,
 				       int (*okfn)(struct sk_buff *))
 {
-	if (!((*pskb)->ipvs_property))
+	if (!skb->ipvs_property)
 		return NF_ACCEPT;
 	/* The packet was sent from IPVS, exit this chain */
 	return NF_STOP;
@@ -569,9 +569,8 @@ void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
  *	Currently handles error types - unreachable, quench, ttl exceeded.
  *	(Only used in VS/NAT)
  */
-static int ip_vs_out_icmp(struct sk_buff **pskb, int *related)
+static int ip_vs_out_icmp(struct sk_buff *skb, int *related)
 {
-	struct sk_buff *skb = *pskb;
 	struct iphdr *iph;
 	struct icmphdr	_icmph, *ic;
 	struct iphdr	_ciph, *cih;	/* The ip header contained within the ICMP */
@@ -685,11 +684,10 @@ static inline int is_tcp_reset(const struct sk_buff *skb)
  *      rewrite addresses of the packet and send it on its way...
  */
 static unsigned int
-ip_vs_out(unsigned int hooknum, struct sk_buff **pskb,
+ip_vs_out(unsigned int hooknum, struct sk_buff *skb,
 	  const struct net_device *in, const struct net_device *out,
 	  int (*okfn)(struct sk_buff *))
 {
-	struct sk_buff  *skb = *pskb;
 	struct iphdr	*iph;
 	struct ip_vs_protocol *pp;
 	struct ip_vs_conn *cp;
@@ -702,11 +700,10 @@ ip_vs_out(unsigned int hooknum, struct sk_buff **pskb,
 
 	iph = ip_hdr(skb);
 	if (unlikely(iph->protocol == IPPROTO_ICMP)) {
-		int related, verdict = ip_vs_out_icmp(pskb, &related);
+		int related, verdict = ip_vs_out_icmp(skb, &related);
 
 		if (related)
 			return verdict;
-		skb = *pskb;
 		iph = ip_hdr(skb);
 	}
 
@@ -765,9 +762,8 @@ ip_vs_out(unsigned int hooknum, struct sk_buff **pskb,
 		goto drop;
 
 	/* mangle the packet */
-	if (pp->snat_handler && !pp->snat_handler(pskb, pp, cp))
+	if (pp->snat_handler && !pp->snat_handler(skb, pp, cp))
 		goto drop;
-	skb = *pskb;
 	ip_hdr(skb)->saddr = cp->vaddr;
 	ip_send_check(ip_hdr(skb));
 
@@ -777,9 +773,8 @@ ip_vs_out(unsigned int hooknum, struct sk_buff **pskb,
 	 * if it came from this machine itself.  So re-compute
 	 * the routing information.
 	 */
-	if (ip_route_me_harder(pskb, RTN_LOCAL) != 0)
+	if (ip_route_me_harder(skb, RTN_LOCAL) != 0)
 		goto drop;
-	skb = *pskb;
 
 	IP_VS_DBG_PKT(10, pp, skb, 0, "After SNAT");
 
@@ -794,7 +789,7 @@ ip_vs_out(unsigned int hooknum, struct sk_buff **pskb,
 
   drop:
 	ip_vs_conn_put(cp);
-	kfree_skb(*pskb);
+	kfree_skb(skb);
 	return NF_STOLEN;
 }
 
@@ -806,9 +801,8 @@ ip_vs_out(unsigned int hooknum, struct sk_buff **pskb,
  *	Currently handles error types - unreachable, quench, ttl exceeded.
  */
 static int
-ip_vs_in_icmp(struct sk_buff **pskb, int *related, unsigned int hooknum)
+ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum)
 {
-	struct sk_buff *skb = *pskb;
 	struct iphdr *iph;
 	struct icmphdr	_icmph, *ic;
 	struct iphdr	_ciph, *cih;	/* The ip header contained within the ICMP */
@@ -901,11 +895,10 @@ ip_vs_in_icmp(struct sk_buff **pskb, int *related, unsigned int hooknum)
  *	and send it on its way...
  */
 static unsigned int
-ip_vs_in(unsigned int hooknum, struct sk_buff **pskb,
+ip_vs_in(unsigned int hooknum, struct sk_buff *skb,
 	 const struct net_device *in, const struct net_device *out,
 	 int (*okfn)(struct sk_buff *))
 {
-	struct sk_buff	*skb = *pskb;
 	struct iphdr	*iph;
 	struct ip_vs_protocol *pp;
 	struct ip_vs_conn *cp;
@@ -927,11 +920,10 @@ ip_vs_in(unsigned int hooknum, struct sk_buff **pskb,
 
 	iph = ip_hdr(skb);
 	if (unlikely(iph->protocol == IPPROTO_ICMP)) {
-		int related, verdict = ip_vs_in_icmp(pskb, &related, hooknum);
+		int related, verdict = ip_vs_in_icmp(skb, &related, hooknum);
 
 		if (related)
 			return verdict;
-		skb = *pskb;
 		iph = ip_hdr(skb);
 	}
 
@@ -1012,16 +1004,16 @@ ip_vs_in(unsigned int hooknum, struct sk_buff **pskb,
  *      and send them to ip_vs_in_icmp.
  */
 static unsigned int
-ip_vs_forward_icmp(unsigned int hooknum, struct sk_buff **pskb,
+ip_vs_forward_icmp(unsigned int hooknum, struct sk_buff *skb,
 		   const struct net_device *in, const struct net_device *out,
 		   int (*okfn)(struct sk_buff *))
 {
 	int r;
 
-	if (ip_hdr(*pskb)->protocol != IPPROTO_ICMP)
+	if (ip_hdr(skb)->protocol != IPPROTO_ICMP)
 		return NF_ACCEPT;
 
-	return ip_vs_in_icmp(pskb, &r, hooknum);
+	return ip_vs_in_icmp(skb, &r, hooknum);
 }
 
 
diff --git a/net/ipv4/ipvs/ip_vs_ftp.c b/net/ipv4/ipvs/ip_vs_ftp.c
index 4167d41..59aa166 100644
--- a/net/ipv4/ipvs/ip_vs_ftp.c
+++ b/net/ipv4/ipvs/ip_vs_ftp.c
@@ -136,7 +136,7 @@ static int ip_vs_ftp_get_addrport(char *data, char *data_limit,
  * xxx,xxx,xxx,xxx is the server address, ppp,ppp is the server port number.
  */
 static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp,
-			 struct sk_buff **pskb, int *diff)
+			 struct sk_buff *skb, int *diff)
 {
 	struct iphdr *iph;
 	struct tcphdr *th;
@@ -156,14 +156,14 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp,
 		return 1;
 
 	/* Linear packets are much easier to deal with. */
-	if (!skb_make_writable(*pskb, (*pskb)->len))
+	if (!skb_make_writable(skb, skb->len))
 		return 0;
 
 	if (cp->app_data == &ip_vs_ftp_pasv) {
-		iph = ip_hdr(*pskb);
+		iph = ip_hdr(skb);
 		th = (struct tcphdr *)&(((char *)iph)[iph->ihl*4]);
 		data = (char *)th + (th->doff << 2);
-		data_limit = skb_tail_pointer(*pskb);
+		data_limit = skb_tail_pointer(skb);
 
 		if (ip_vs_ftp_get_addrport(data, data_limit,
 					   SERVER_STRING,
@@ -214,7 +214,7 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp,
 			memcpy(start, buf, buf_len);
 			ret = 1;
 		} else {
-			ret = !ip_vs_skb_replace(*pskb, GFP_ATOMIC, start,
+			ret = !ip_vs_skb_replace(skb, GFP_ATOMIC, start,
 					  end-start, buf, buf_len);
 		}
 
@@ -239,7 +239,7 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp,
  * the client.
  */
 static int ip_vs_ftp_in(struct ip_vs_app *app, struct ip_vs_conn *cp,
-			struct sk_buff **pskb, int *diff)
+			struct sk_buff *skb, int *diff)
 {
 	struct iphdr *iph;
 	struct tcphdr *th;
@@ -257,20 +257,20 @@ static int ip_vs_ftp_in(struct ip_vs_app *app, struct ip_vs_conn *cp,
 		return 1;
 
 	/* Linear packets are much easier to deal with. */
-	if (!skb_make_writable(*pskb, (*pskb)->len))
+	if (!skb_make_writable(skb, skb->len))
 		return 0;
 
 	/*
 	 * Detecting whether it is passive
 	 */
-	iph = ip_hdr(*pskb);
+	iph = ip_hdr(skb);
 	th = (struct tcphdr *)&(((char *)iph)[iph->ihl*4]);
 
 	/* Since there may be OPTIONS in the TCP packet and the HLEN is
 	   the length of the header in 32-bit multiples, it is accurate
 	   to calculate data address by th+HLEN*4 */
 	data = data_start = (char *)th + (th->doff << 2);
-	data_limit = skb_tail_pointer(*pskb);
+	data_limit = skb_tail_pointer(skb);
 
 	while (data <= data_limit - 6) {
 		if (strnicmp(data, "PASV\r\n", 6) == 0) {
diff --git a/net/ipv4/ipvs/ip_vs_proto_tcp.c b/net/ipv4/ipvs/ip_vs_proto_tcp.c
index b65b1a3..12dc0d6 100644
--- a/net/ipv4/ipvs/ip_vs_proto_tcp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_tcp.c
@@ -123,27 +123,27 @@ tcp_fast_csum_update(struct tcphdr *tcph, __be32 oldip, __be32 newip,
 
 
 static int
-tcp_snat_handler(struct sk_buff **pskb,
+tcp_snat_handler(struct sk_buff *skb,
 		 struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
 {
 	struct tcphdr *tcph;
-	const unsigned int tcphoff = ip_hdrlen(*pskb);
+	const unsigned int tcphoff = ip_hdrlen(skb);
 
 	/* csum_check requires unshared skb */
-	if (!skb_make_writable(*pskb, tcphoff+sizeof(*tcph)))
+	if (!skb_make_writable(skb, tcphoff+sizeof(*tcph)))
 		return 0;
 
 	if (unlikely(cp->app != NULL)) {
 		/* Some checks before mangling */
-		if (pp->csum_check && !pp->csum_check(*pskb, pp))
+		if (pp->csum_check && !pp->csum_check(skb, pp))
 			return 0;
 
 		/* Call application helper if needed */
-		if (!ip_vs_app_pkt_out(cp, pskb))
+		if (!ip_vs_app_pkt_out(cp, skb))
 			return 0;
 	}
 
-	tcph = (void *)ip_hdr(*pskb) + tcphoff;
+	tcph = (void *)ip_hdr(skb) + tcphoff;
 	tcph->source = cp->vport;
 
 	/* Adjust TCP checksums */
@@ -151,17 +151,15 @@ tcp_snat_handler(struct sk_buff **pskb,
 		/* Only port and addr are changed, do fast csum update */
 		tcp_fast_csum_update(tcph, cp->daddr, cp->vaddr,
 				     cp->dport, cp->vport);
-		if ((*pskb)->ip_summed == CHECKSUM_COMPLETE)
-			(*pskb)->ip_summed = CHECKSUM_NONE;
+		if (skb->ip_summed == CHECKSUM_COMPLETE)
+			skb->ip_summed = CHECKSUM_NONE;
 	} else {
 		/* full checksum calculation */
 		tcph->check = 0;
-		(*pskb)->csum = skb_checksum(*pskb, tcphoff,
-					     (*pskb)->len - tcphoff, 0);
+		skb->csum = skb_checksum(skb, tcphoff, skb->len - tcphoff, 0);
 		tcph->check = csum_tcpudp_magic(cp->vaddr, cp->caddr,
-						(*pskb)->len - tcphoff,
-						cp->protocol,
-						(*pskb)->csum);
+						skb->len - tcphoff,
+						cp->protocol, skb->csum);
 		IP_VS_DBG(11, "O-pkt: %s O-csum=%d (+%zd)\n",
 			  pp->name, tcph->check,
 			  (char*)&(tcph->check) - (char*)tcph);
@@ -171,30 +169,30 @@ tcp_snat_handler(struct sk_buff **pskb,
 
 
 static int
-tcp_dnat_handler(struct sk_buff **pskb,
+tcp_dnat_handler(struct sk_buff *skb,
 		 struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
 {
 	struct tcphdr *tcph;
-	const unsigned int tcphoff = ip_hdrlen(*pskb);
+	const unsigned int tcphoff = ip_hdrlen(skb);
 
 	/* csum_check requires unshared skb */
-	if (!skb_make_writable(*pskb, tcphoff+sizeof(*tcph)))
+	if (!skb_make_writable(skb, tcphoff+sizeof(*tcph)))
 		return 0;
 
 	if (unlikely(cp->app != NULL)) {
 		/* Some checks before mangling */
-		if (pp->csum_check && !pp->csum_check(*pskb, pp))
+		if (pp->csum_check && !pp->csum_check(skb, pp))
 			return 0;
 
 		/*
 		 *	Attempt ip_vs_app call.
 		 *	It will fix ip_vs_conn and iph ack_seq stuff
 		 */
-		if (!ip_vs_app_pkt_in(cp, pskb))
+		if (!ip_vs_app_pkt_in(cp, skb))
 			return 0;
 	}
 
-	tcph = (void *)ip_hdr(*pskb) + tcphoff;
+	tcph = (void *)ip_hdr(skb) + tcphoff;
 	tcph->dest = cp->dport;
 
 	/*
@@ -204,18 +202,16 @@ tcp_dnat_handler(struct sk_buff **pskb,
 		/* Only port and addr are changed, do fast csum update */
 		tcp_fast_csum_update(tcph, cp->vaddr, cp->daddr,
 				     cp->vport, cp->dport);
-		if ((*pskb)->ip_summed == CHECKSUM_COMPLETE)
-			(*pskb)->ip_summed = CHECKSUM_NONE;
+		if (skb->ip_summed == CHECKSUM_COMPLETE)
+			skb->ip_summed = CHECKSUM_NONE;
 	} else {
 		/* full checksum calculation */
 		tcph->check = 0;
-		(*pskb)->csum = skb_checksum(*pskb, tcphoff,
-					     (*pskb)->len - tcphoff, 0);
+		skb->csum = skb_checksum(skb, tcphoff, skb->len - tcphoff, 0);
 		tcph->check = csum_tcpudp_magic(cp->caddr, cp->daddr,
-						(*pskb)->len - tcphoff,
-						cp->protocol,
-						(*pskb)->csum);
-		(*pskb)->ip_summed = CHECKSUM_UNNECESSARY;
+						skb->len - tcphoff,
+						cp->protocol, skb->csum);
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
 	}
 	return 1;
 }
diff --git a/net/ipv4/ipvs/ip_vs_proto_udp.c b/net/ipv4/ipvs/ip_vs_proto_udp.c
index c70aa40..1fa7b33 100644
--- a/net/ipv4/ipvs/ip_vs_proto_udp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_udp.c
@@ -130,29 +130,29 @@ udp_fast_csum_update(struct udphdr *uhdr, __be32 oldip, __be32 newip,
 }
 
 static int
-udp_snat_handler(struct sk_buff **pskb,
+udp_snat_handler(struct sk_buff *skb,
 		 struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
 {
 	struct udphdr *udph;
-	const unsigned int udphoff = ip_hdrlen(*pskb);
+	const unsigned int udphoff = ip_hdrlen(skb);
 
 	/* csum_check requires unshared skb */
-	if (!skb_make_writable(*pskb, udphoff+sizeof(*udph)))
+	if (!skb_make_writable(skb, udphoff+sizeof(*udph)))
 		return 0;
 
 	if (unlikely(cp->app != NULL)) {
 		/* Some checks before mangling */
-		if (pp->csum_check && !pp->csum_check(*pskb, pp))
+		if (pp->csum_check && !pp->csum_check(skb, pp))
 			return 0;
 
 		/*
 		 *	Call application helper if needed
 		 */
-		if (!ip_vs_app_pkt_out(cp, pskb))
+		if (!ip_vs_app_pkt_out(cp, skb))
 			return 0;
 	}
 
-	udph = (void *)ip_hdr(*pskb) + udphoff;
+	udph = (void *)ip_hdr(skb) + udphoff;
 	udph->source = cp->vport;
 
 	/*
@@ -162,17 +162,15 @@ udp_snat_handler(struct sk_buff **pskb,
 		/* Only port and addr are changed, do fast csum update */
 		udp_fast_csum_update(udph, cp->daddr, cp->vaddr,
 				     cp->dport, cp->vport);
-		if ((*pskb)->ip_summed == CHECKSUM_COMPLETE)
-			(*pskb)->ip_summed = CHECKSUM_NONE;
+		if (skb->ip_summed == CHECKSUM_COMPLETE)
+			skb->ip_summed = CHECKSUM_NONE;
 	} else {
 		/* full checksum calculation */
 		udph->check = 0;
-		(*pskb)->csum = skb_checksum(*pskb, udphoff,
-					     (*pskb)->len - udphoff, 0);
+		skb->csum = skb_checksum(skb, udphoff, skb->len - udphoff, 0);
 		udph->check = csum_tcpudp_magic(cp->vaddr, cp->caddr,
-						(*pskb)->len - udphoff,
-						cp->protocol,
-						(*pskb)->csum);
+						skb->len - udphoff,
+						cp->protocol, skb->csum);
 		if (udph->check == 0)
 			udph->check = CSUM_MANGLED_0;
 		IP_VS_DBG(11, "O-pkt: %s O-csum=%d (+%zd)\n",
@@ -184,30 +182,30 @@ udp_snat_handler(struct sk_buff **pskb,
 
 
 static int
-udp_dnat_handler(struct sk_buff **pskb,
+udp_dnat_handler(struct sk_buff *skb,
 		 struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
 {
 	struct udphdr *udph;
-	unsigned int udphoff = ip_hdrlen(*pskb);
+	unsigned int udphoff = ip_hdrlen(skb);
 
 	/* csum_check requires unshared skb */
-	if (!skb_make_writable(*pskb, udphoff+sizeof(*udph)))
+	if (!skb_make_writable(skb, udphoff+sizeof(*udph)))
 		return 0;
 
 	if (unlikely(cp->app != NULL)) {
 		/* Some checks before mangling */
-		if (pp->csum_check && !pp->csum_check(*pskb, pp))
+		if (pp->csum_check && !pp->csum_check(skb, pp))
 			return 0;
 
 		/*
 		 *	Attempt ip_vs_app call.
 		 *	It will fix ip_vs_conn
 		 */
-		if (!ip_vs_app_pkt_in(cp, pskb))
+		if (!ip_vs_app_pkt_in(cp, skb))
 			return 0;
 	}
 
-	udph = (void *)ip_hdr(*pskb) + udphoff;
+	udph = (void *)ip_hdr(skb) + udphoff;
 	udph->dest = cp->dport;
 
 	/*
@@ -217,20 +215,18 @@ udp_dnat_handler(struct sk_buff **pskb,
 		/* Only port and addr are changed, do fast csum update */
 		udp_fast_csum_update(udph, cp->vaddr, cp->daddr,
 				     cp->vport, cp->dport);
-		if ((*pskb)->ip_summed == CHECKSUM_COMPLETE)
-			(*pskb)->ip_summed = CHECKSUM_NONE;
+		if (skb->ip_summed == CHECKSUM_COMPLETE)
+			skb->ip_summed = CHECKSUM_NONE;
 	} else {
 		/* full checksum calculation */
 		udph->check = 0;
-		(*pskb)->csum = skb_checksum(*pskb, udphoff,
-					     (*pskb)->len - udphoff, 0);
+		skb->csum = skb_checksum(skb, udphoff, skb->len - udphoff, 0);
 		udph->check = csum_tcpudp_magic(cp->caddr, cp->daddr,
-						(*pskb)->len - udphoff,
-						cp->protocol,
-						(*pskb)->csum);
+						skb->len - udphoff,
+						cp->protocol, skb->csum);
 		if (udph->check == 0)
 			udph->check = CSUM_MANGLED_0;
-		(*pskb)->ip_summed = CHECKSUM_UNNECESSARY;
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
 	}
 	return 1;
 }
diff --git a/net/ipv4/ipvs/ip_vs_xmit.c b/net/ipv4/ipvs/ip_vs_xmit.c
index afd90d4..d0a92de 100644
--- a/net/ipv4/ipvs/ip_vs_xmit.c
+++ b/net/ipv4/ipvs/ip_vs_xmit.c
@@ -264,7 +264,7 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 	skb->dst = &rt->u.dst;
 
 	/* mangle the packet */
-	if (pp->dnat_handler && !pp->dnat_handler(&skb, pp, cp))
+	if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp))
 		goto tx_error;
 	ip_hdr(skb)->daddr = cp->daddr;
 	ip_send_check(ip_hdr(skb));