sctp: remove the typedef sctp_ecnehdr_t

This patch is to remove the typedef sctp_ecnehdr_t, and
replace with struct sctp_ecnehdr in the places where it's
using this typedef.

It is also to use sizeof(variable) instead of sizeof(type).

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sctp/sm_make_chunk.c

@@ -697,11 +697,11 @@ struct sctp_chunk *sctp_make_ecne(const struct sctp_association *asoc,
 			     const __u32 lowest_tsn)
 {
 	struct sctp_chunk *retval;
-	sctp_ecnehdr_t ecne;
+	struct sctp_ecnehdr ecne;
 
 	ecne.lowest_tsn = htonl(lowest_tsn);
 	retval = sctp_make_control(asoc, SCTP_CID_ECN_ECNE, 0,
-				   sizeof(sctp_ecnehdr_t), GFP_ATOMIC);
+				   sizeof(ecne), GFP_ATOMIC);
 	if (!retval)
 		goto nodata;
 	retval->subh.ecne_hdr =