diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/rc.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/rc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/hfi1/rc.c b/drivers/infiniband/hw/hfi1/rc.c index 1dd999e9349c..6446179843e9 100644 --- a/drivers/infiniband/hw/hfi1/rc.c +++ b/drivers/infiniband/hw/hfi1/rc.c @@ -414,7 +414,7 @@ int hfi1_make_rc_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps) goto bail; /* We are in the error state, flush the work request. */ smp_read_barrier_depends(); /* see post_one_send() */ - if (qp->s_last == ACCESS_ONCE(qp->s_head)) + if (qp->s_last == READ_ONCE(qp->s_head)) goto bail; /* If DMAs are in progress, we can't flush immediately. */ if (iowait_sdma_pending(&priv->s_iowait)) { @@ -457,7 +457,8 @@ int hfi1_make_rc_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps) newreq = 0; if (qp->s_cur == qp->s_tail) { /* Check if send work queue is empty. */ - if (qp->s_tail == qp->s_head) { + smp_read_barrier_depends(); /* see post_one_send() */ + if (qp->s_tail == READ_ONCE(qp->s_head)) { clear_ahg(qp); goto bail; } @@ -1590,7 +1591,7 @@ static void rc_rcv_resp(struct hfi1_ibport *ibp, /* Ignore invalid responses. */ smp_read_barrier_depends(); /* see post_one_send */ - if (cmp_psn(psn, ACCESS_ONCE(qp->s_next_psn)) >= 0) + if (cmp_psn(psn, READ_ONCE(qp->s_next_psn)) >= 0) goto ack_done; /* Ignore duplicate responses. */ |