rds_ib_set_ack    415 net/rds/ib.h   void rds_ib_set_ack(struct rds_ib_connection *ic, u64 seq, int ack_required);
rds_ib_set_ack    377 net/rds/ib_cm.c 		rds_ib_set_ack(ic, state.ack_next, state.ack_required);