SCTP_CHUNK_FLAG_ACKED
SCTP_CHUNK_FLAG_ACKED); \
((mp)->b_flag = (SCTP_CHUNK_FLAG_SENT|SCTP_CHUNK_FLAG_ACKED))
#define SCTP_CHUNK_ISACKED(mp) ((mp)->b_flag & SCTP_CHUNK_FLAG_ACKED)
(mp)->b_flag &= ~SCTP_CHUNK_FLAG_ACKED; \