[SCTP]: Introduce sctp_hdr()

For consistency with all the other skb->h.raw accessors.

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

1 files changed, 4 insertions, 6 deletions

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 08f92ba4ebd7..7c28c9b959e2 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -235,7 +235,7 @@ 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 = &ip_hdr(skb)->saddr;
@@ -731,13 +731,11 @@ 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 = ip_hdr(skb)->saddr;
         }