[PATCH for-rc 3/4] RDMA/hns: Fix warning storm caused by invalid input in IO path

[Junxian Huang]

From: Chengchang Tang <tangchengchang@xxxxxxxxxx>

WARN_ON() is called in the IO path. And it could lead to a warning
storm. Use WARN_ON_ONCE() instead of WARN_ON().

Fixes: 12542f1de179 ("RDMA/hns: Refactor process about opcode in post_send()")
Signed-off-by: Chengchang Tang <tangchengchang@xxxxxxxxxx>
Signed-off-by: Junxian Huang <huangjunxian6@xxxxxxxxxxxxx>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 6dddadb90e02..d0469d27c63c 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -468,7 +468,7 @@ static inline int set_ud_wqe(struct hns_roce_qp *qp,
 	valid_num_sge = calc_wr_sge_num(wr, &msg_len);
 
 	ret = set_ud_opcode(ud_sq_wqe, wr);
-	if (WARN_ON(ret))
+	if (WARN_ON_ONCE(ret))
 		return ret;
 
 	ud_sq_wqe->msg_len = cpu_to_le32(msg_len);
@@ -572,7 +572,7 @@ static inline int set_rc_wqe(struct hns_roce_qp *qp,
 	rc_sq_wqe->msg_len = cpu_to_le32(msg_len);
 
 	ret = set_rc_opcode(hr_dev, rc_sq_wqe, wr);
-	if (WARN_ON(ret))
+	if (WARN_ON_ONCE(ret))
 		return ret;
 
 	hr_reg_write(rc_sq_wqe, RC_SEND_WQE_SO,
-- 
2.33.0