sctp: remove the typedef sctp_data_chunk_t

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

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

include/net/sctp/constants.h

@@ -152,7 +152,7 @@ SCTP_SUBTYPE_CONSTRUCTOR(PRIMITIVE,	sctp_event_primitive_t,	primitive)
 /* Calculate the actual data size in a data chunk */
 #define SCTP_DATA_SNDSIZE(c) ((int)((unsigned long)(c->chunk_end)\
 		       		- (unsigned long)(c->chunk_hdr)\
-				- sizeof(sctp_data_chunk_t)))
+				- sizeof(struct sctp_data_chunk)))
 
 /* Internal error codes */
 typedef enum {

include/net/sctp/sm.h

@@ -347,7 +347,7 @@ static inline __u16 sctp_data_size(struct sctp_chunk *chunk)
 	__u16 size;
 
 	size = ntohs(chunk->chunk_hdr->length);
-	size -= sizeof(sctp_data_chunk_t);
+	size -= sizeof(struct sctp_data_chunk);
 
 	return size;
 }