sctp: remove the typedef sctp_addiphdr_t

This patch is to remove the typedef sctp_addiphdr_t, and
replace with struct sctp_addiphdr 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>
diff --git a/include/linux/sctp.h b/include/linux/sctp.h
index 5b7d6d9..83dac9b 100644
--- a/include/linux/sctp.h
+++ b/include/linux/sctp.h
@@ -634,14 +634,14 @@ struct sctp_addip_param {
 	__be32 crr_id;
 };
 
-typedef struct sctp_addiphdr {
+struct sctp_addiphdr {
 	__be32	serial;
 	__u8	params[0];
-} sctp_addiphdr_t;
+};
 
 typedef struct sctp_addip_chunk {
 	struct sctp_chunkhdr chunk_hdr;
-	sctp_addiphdr_t addip_hdr;
+	struct sctp_addiphdr addip_hdr;
 } sctp_addip_chunk_t;
 
 /* AUTH