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authorLijun Ou <oulijun@huawei.com>2017-09-29 23:10:10 +0800
committerDoug Ledford <dledford@redhat.com>2017-09-29 12:09:21 -0400
commit512f4f1653e63b6efbdccb296b812fa809b7c95c (patch)
tree653294b20217ffa104708ab9bddd8fa49bdac6a1 /drivers/infiniband/hw/hns/hns_roce_hw_v1.c
parenta74dc41d49959e46ca356a388fab3a23a4b593cd (diff)
RDMA/hns: Only assign dest_qp if IB_QP_DEST_QPN bit is set
Only when the IB_QP_DEST_QPN flag of attr_mask is set is it valid to assign the dest_qp_num into the dest_qp field of qp context. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: Shaobo Xu <xushaobo2@huawei.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_hw_v1.c')
-rw-r--r--drivers/infiniband/hw/hns/hns_roce_hw_v1.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
index 93010a5d0cbf..55e6daabcde2 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
@@ -2888,10 +2888,11 @@ static int hns_roce_v1_m_qp(struct ib_qp *ibqp, const struct ib_qp_attr *attr,
QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_S,
ilog2((unsigned int)attr->max_dest_rd_atomic));
- roce_set_field(context->qpc_bytes_36,
- QP_CONTEXT_QPC_BYTES_36_DEST_QP_M,
- QP_CONTEXT_QPC_BYTES_36_DEST_QP_S,
- attr->dest_qp_num);
+ if (attr_mask & IB_QP_DEST_QPN)
+ roce_set_field(context->qpc_bytes_36,
+ QP_CONTEXT_QPC_BYTES_36_DEST_QP_M,
+ QP_CONTEXT_QPC_BYTES_36_DEST_QP_S,
+ attr->dest_qp_num);
/* Configure GID index */
port_num = rdma_ah_get_port_num(&attr->ah_attr);