/* For the graceful shutdown we must carry the tag (in common header)
  * and the highest consecutive acking value.
  */
-typedef struct sctp_shutdownhdr {
+struct sctp_shutdownhdr {
        __be32 cum_tsn_ack;
-} sctp_shutdownhdr_t;
+};
 
 struct sctp_shutdown_chunk_t {
        struct sctp_chunkhdr chunk_hdr;
-       sctp_shutdownhdr_t shutdown_hdr;
+       struct sctp_shutdownhdr shutdown_hdr;
 };
 
 /* RFC 2960.  Section 3.3.10 Operation Error (ERROR) (9) */
 
 struct sctp_chunk *sctp_make_shutdown(const struct sctp_association *asoc,
                                      const struct sctp_chunk *chunk)
 {
+       struct sctp_shutdownhdr shut;
        struct sctp_chunk *retval;
-       sctp_shutdownhdr_t shut;
        __u32 ctsn;
 
        ctsn = sctp_tsnmap_get_ctsn(&asoc->peer.tsn_map);
        shut.cum_tsn_ack = htonl(ctsn);
 
        retval = sctp_make_control(asoc, SCTP_CID_SHUTDOWN, 0,
-                                  sizeof(sctp_shutdownhdr_t), GFP_ATOMIC);
+                                  sizeof(shut), GFP_ATOMIC);
        if (!retval)
                goto nodata;
 
 
                                           sctp_cmd_seq_t *commands)
 {
        struct sctp_chunk *chunk = arg;
-       sctp_shutdownhdr_t *sdh;
        sctp_disposition_t disposition;
+       struct sctp_shutdownhdr *sdh;
        struct sctp_ulpevent *ev;
        __u32 ctsn;
 
                                                  commands);
 
        /* Convert the elaborate header.  */
-       sdh = (sctp_shutdownhdr_t *)chunk->skb->data;
-       skb_pull(chunk->skb, sizeof(sctp_shutdownhdr_t));
+       sdh = (struct sctp_shutdownhdr *)chunk->skb->data;
+       skb_pull(chunk->skb, sizeof(*sdh));
        chunk->subh.shutdown_hdr = sdh;
        ctsn = ntohl(sdh->cum_tsn_ack);
 
                                           sctp_cmd_seq_t *commands)
 {
        struct sctp_chunk *chunk = arg;
-       sctp_shutdownhdr_t *sdh;
+       struct sctp_shutdownhdr *sdh;
        __u32 ctsn;
 
        if (!sctp_vtag_verify(chunk, asoc))
                return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
                                                  commands);
 
-       sdh = (sctp_shutdownhdr_t *)chunk->skb->data;
+       sdh = (struct sctp_shutdownhdr *)chunk->skb->data;
        ctsn = ntohl(sdh->cum_tsn_ack);
 
        if (TSN_lt(ctsn, asoc->ctsn_ack_point)) {