RDMA/hns: Fix QP state judgement before receiving work requests

The QP can accept receive work requests only when the QP is
in the states that allow them to be submitted.

This patch updates the QP state judgement based on the
specification.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index db2ff352d75f665b075d512e73dce619fdf230c1..0aa748304ab5ea215138baecf058f4217de7836f 100644 (file)
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -509,7 +509,7 @@ static int hns_roce_v2_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
        spin_lock_irqsave(&hr_qp->rq.lock, flags);
        ind = hr_qp->rq.head & (hr_qp->rq.wqe_cnt - 1);
 
-       if (hr_qp->state == IB_QPS_RESET || hr_qp->state == IB_QPS_ERR) {
+       if (hr_qp->state == IB_QPS_RESET) {
                spin_unlock_irqrestore(&hr_qp->rq.lock, flags);
                *bad_wr = wr;
                return -EINVAL;