[RESEND PATCH for-next] RDMA/hns: Fix incorrect lsn field

From: Yixing Liu <redacted>

In RNR NAK screnario, according to the specification, when no credit is
available, only the first fragment of the send request can be sent. The
LSN(Limit Sequence Number) field should be 0 or the entire packet will be
resent.

Fixes: 926a01dc000d ("RDMA/hns: Add QP operations support for hip08 SoC")
Signed-off-by: Yixing Liu <redacted>
Signed-off-by: Wenpeng Liang <redacted>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index d00be78..198a0c6 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -4483,9 +4483,6 @@ static int modify_qp_rtr_to_rts(struct ib_qp *ibqp,

 	hr_reg_clear(qpc_mask, QPC_CHECK_FLG);

-	hr_reg_write(context, QPC_LSN, 0x100);
-	hr_reg_clear(qpc_mask, QPC_LSN);
-
 	hr_reg_clear(qpc_mask, QPC_V2_IRRL_HEAD);

 	return 0;
--

2.8.1