[SCTP]: Eliminate some pointer attributions to the skb layer headers

[linux-2.6-omap-h63xx.git] / net / sctp / protocol.c

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index e17a823ca90fcecc1d6e5da68d7ad6b9ea70eeee..7c28c9b959e26bf95fd7e966df9dbc8fbce8d5b1 100644 (file)
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -235,13 +235,13 @@ static void sctp_v4_from_skb(union sctp_addr *addr, struct sk_buff *skb,
        port = &addr->v4.sin_port;
        addr->v4.sin_family = AF_INET;
 
-       sh = (struct sctphdr *) skb->h.raw;
+       sh = sctp_hdr(skb);
        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(). */
@@ -731,15 +731,13 @@ static void sctp_inet_event_msgname(struct sctp_ulpevent *event, char *msgname,
 /* Initialize and copy out a msgname from an inbound skb. */
 static void sctp_inet_skb_msgname(struct sk_buff *skb, char *msgname, int *len)
 {
-       struct sctphdr *sh;
-       struct sockaddr_in *sin;
-
        if (msgname) {
+               struct sctphdr *sh = sctp_hdr(skb);
+               struct sockaddr_in *sin = (struct sockaddr_in *)msgname;
+
                sctp_inet_msgname(msgname, 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;
        }
 }