5045 use atomic_{inc,dec}_* instead of atomic_add_*

*** 1754,1764 ****
                  return;
          }
          ASSERT(sctps->sctps_recvq_tq_list[
              sctps->sctps_recvq_tq_list_cur_sz] == NULL);
          sctps->sctps_recvq_tq_list[sctps->sctps_recvq_tq_list_cur_sz] = tq;
!         atomic_add_32(&sctps->sctps_recvq_tq_list_cur_sz, 1);
          mutex_exit(&sctps->sctps_rq_tq_lock);
  }
  
  #ifdef DEBUG
  uint32_t recvq_loop_cnt = 0;
--- 1754,1764 ----
                  return;
          }
          ASSERT(sctps->sctps_recvq_tq_list[
              sctps->sctps_recvq_tq_list_cur_sz] == NULL);
          sctps->sctps_recvq_tq_list[sctps->sctps_recvq_tq_list_cur_sz] = tq;
!         atomic_inc_32(&sctps->sctps_recvq_tq_list_cur_sz);
          mutex_exit(&sctps->sctps_rq_tq_lock);
  }
  
  #ifdef DEBUG
  uint32_t recvq_loop_cnt = 0;
*** 1781,1791 ****
           * Note that since we don't hold a lock on sctp_rq_tq_lock for
           * performance reason, recvq_ta_list_cur_sz can be changed during
           * this loop.  The problem this will create is that the loop may
           * not have tried all the recvq_tq.  This should be OK.
           */
!         next_tq = atomic_add_32_nv(&sctps->sctps_recvq_tq_list_cur, 1) %
              sctps->sctps_recvq_tq_list_cur_sz;
          for (try = 0; try < sctps->sctps_recvq_tq_list_cur_sz; try++) {
                  tq = sctps->sctps_recvq_tq_list[next_tq];
                  if (taskq_dispatch(tq, sctp_process_recvq, sctp,
                      TQ_NOSLEEP) != NULL) {
--- 1781,1791 ----
           * Note that since we don't hold a lock on sctp_rq_tq_lock for
           * performance reason, recvq_ta_list_cur_sz can be changed during
           * this loop.  The problem this will create is that the loop may
           * not have tried all the recvq_tq.  This should be OK.
           */
!         next_tq = atomic_inc_32_nv(&sctps->sctps_recvq_tq_list_cur) %
              sctps->sctps_recvq_tq_list_cur_sz;
          for (try = 0; try < sctps->sctps_recvq_tq_list_cur_sz; try++) {
                  tq = sctps->sctps_recvq_tq_list[next_tq];
                  if (taskq_dispatch(tq, sctp_process_recvq, sctp,
                      TQ_NOSLEEP) != NULL) {