SCTP_CHUNK_SET_SACKCNT
SCTP_CHUNK_SET_SACKCNT(mp, 0); \
SCTP_CHUNK_SET_SACKCNT(mp, 0);
SCTP_CHUNK_SET_SACKCNT(mp, 0);
SCTP_CHUNK_SET_SACKCNT(mp, SCTP_CHUNK_SACKCNT(mp) + 1);
SCTP_CHUNK_SET_SACKCNT(mp, SCTP_CHUNK_SACKCNT(mp) + 1);
SCTP_CHUNK_SET_SACKCNT(mp, 0);