libhns: Fix uninitialized qp attr when flush cqe

[ Upstream commit 23c2104 ]

When flushing cqe, the state of qp needs to be modified. The incoming qp
attr is not initialized, which may lead to undefined behavior.

Fixes: e1726e9 ("libhns: Support flush cqe for hip08 in user space")
Signed-off-by: Chengchang Tang <[email protected]>
Signed-off-by: Junxian Huang <[email protected]>
Signed-off-by: Nicolas Morey <[email protected]>

providers/hns/hns_roce_u_hw_v2.c

@@ -354,7 +354,7 @@ static int hns_roce_u_v2_modify_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr,
 
 static int hns_roce_flush_cqe(struct hns_roce_qp **cur_qp, struct ibv_wc *wc)
 {
- struct ibv_qp_attr attr;
+ struct ibv_qp_attr attr = {};
  int attr_mask;
  int ret;
 
@@ -962,7 +962,7 @@ int hns_roce_u_v2_post_send(struct ibv_qp *ibvqp, struct ibv_send_wr *wr,
  struct hns_roce_context *ctx = to_hr_ctx(ibvqp->context);
  struct hns_roce_qp *qp = to_hr_qp(ibvqp);
  struct hns_roce_sge_info sge_info = {};
- struct ibv_qp_attr attr;
+ struct ibv_qp_attr attr = {};
  unsigned int wqe_idx;
  int attr_mask;
  int ret = 0;
@@ -1047,7 +1047,7 @@ static int hns_roce_u_v2_post_recv(struct ibv_qp *ibvqp, struct ibv_recv_wr *wr,
  struct hns_roce_context *ctx = to_hr_ctx(ibvqp->context);
  struct hns_roce_v2_wqe_data_seg *dseg;
  struct hns_roce_rinl_sge *sge_list;
- struct ibv_qp_attr attr;
+ struct ibv_qp_attr attr = {};
  int attr_mask;
  int ret = 0;
  int wqe_idx;