diff options
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_ruc.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_ruc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c index 854deb56ac02..85256747d8a1 100644 --- a/drivers/infiniband/hw/ipath/ipath_ruc.c +++ b/drivers/infiniband/hw/ipath/ipath_ruc.c @@ -194,6 +194,8 @@ int ipath_get_rwqe(struct ipath_qp *qp, int wr_id_only) ret = 0; goto bail; } + /* Make sure entry is read after head index is read. */ + smp_rmb(); wqe = get_rwqe_ptr(rq, tail); if (++tail >= rq->size) tail = 0; |