[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

5 files changed, 10 insertions, 10 deletions

diff --git a/net/sctp/input.c b/net/sctp/input.c
index 2b0863aba3f..595fe32b3d4 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -154,7 +154,7 @@ int sctp_rcv(struct sk_buff *skb)
 	if (skb->len < sizeof(struct sctp_chunkhdr))
 		goto discard_it;
 
-	family = ipver2af(skb->nh.iph->version);
+	family = ipver2af(ip_hdr(skb)->version);
 	af = sctp_get_af_specific(family);
 	if (unlikely(!af))
 		goto discard_it;
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 5f9b145b0b9..742f9ff42fb 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -770,9 +770,9 @@ static void sctp_inet6_skb_msgname(struct sk_buff *skb, char *msgname,
 
 		/* Map ipv4 address into v4-mapped-on-v6 address. */
 		if (sctp_sk(skb->sk)->v4mapped &&
-		    skb->nh.iph->version == 4) {
+		    ip_hdr(skb)->version == 4) {
 			sctp_v4_map_v6((union sctp_addr *)sin6);
-			sin6->sin6_addr.s6_addr32[3] = skb->nh.iph->saddr;
+			sin6->sin6_addr.s6_addr32[3] = ip_hdr(skb)->saddr;
 			return;
 		}
 
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index e17a823ca90..08f92ba4ebd 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -238,10 +238,10 @@ static void sctp_v4_from_skb(union sctp_addr *addr, struct sk_buff *skb,
 	sh = (struct sctphdr *) skb->h.raw;
 	if (is_saddr) {
 		*port  = sh->source;
-		from = &skb->nh.iph->saddr;
+		from = &ip_hdr(skb)->saddr;
 	} else {
 		*port = sh->dest;
-		from = &skb->nh.iph->daddr;
+		from = &ip_hdr(skb)->daddr;
 	}
 	memcpy(&addr->v4.sin_addr.s_addr, from, sizeof(struct in_addr));
 }
@@ -530,7 +530,7 @@ static int sctp_v4_skb_iif(const struct sk_buff *skb)
 /* Was this packet marked by Explicit Congestion Notification? */
 static int sctp_v4_is_ce(const struct sk_buff *skb)
 {
-	return INET_ECN_is_ce(skb->nh.iph->tos);
+	return INET_ECN_is_ce(ip_hdr(skb)->tos);
 }
 
 /* Create and initialize a new sk for the socket returned by accept(). */
@@ -739,7 +739,7 @@ static void sctp_inet_skb_msgname(struct sk_buff *skb, char *msgname, int *len)
 		sin = (struct sockaddr_in *)msgname;
 		sh = (struct sctphdr *)skb->h.raw;
 		sin->sin_port = sh->source;
-		sin->sin_addr.s_addr = skb->nh.iph->saddr;
+		sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
 	}
 }
 
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index f7fb29d5a0c..60c5b59d4c6 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -86,7 +86,7 @@ int sctp_chunk_iif(const struct sctp_chunk *chunk)
 	struct sctp_af *af;
 	int iif = 0;
 
-	af = sctp_get_af_specific(ipver2af(chunk->skb->nh.iph->version));
+	af = sctp_get_af_specific(ipver2af(ip_hdr(chunk->skb)->version));
 	if (af)
 		iif = af->skb_iif(chunk->skb);
 
@@ -1233,7 +1233,7 @@ struct sctp_association *sctp_make_temp_asoc(const struct sctp_endpoint *ep,
 	asoc->temp = 1;
 	skb = chunk->skb;
 	/* Create an entry for the source address of the packet.  */
-	af = sctp_get_af_specific(ipver2af(skb->nh.iph->version));
+	af = sctp_get_af_specific(ipver2af(ip_hdr(skb)->version));
 	if (unlikely(!af))
 		goto fail;
 	af->from_skb(&asoc->c.peer_addr, skb, 1);
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index e9097cf614b..bf502c499c8 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -5286,7 +5286,7 @@ static int sctp_eat_data(const struct sctp_association *asoc,
 		chunk->ecn_ce_done = 1;
 
 		af = sctp_get_af_specific(
-			ipver2af(chunk->skb->nh.iph->version));
+			ipver2af(ip_hdr(chunk->skb)->version));
 
 		if (af && af->is_ce(chunk->skb) && asoc->peer.ecn_capable) {
 			/* Do real work as sideffect. */