linux-kernel - [PATCH for-rc 1/3] RDMA/hns: Remove unnecessary QP type checks

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Message-ID: <20230523121641.3132102-2-huangjunxian6@hisilicon.com>
Date:   Tue, 23 May 2023 20:16:39 +0800
From:   Junxian Huang <huangjunxian6@...ilicon.com>
To:     <jgg@...dia.com>, <leon@...nel.org>
CC:     <linux-rdma@...r.kernel.org>, <linuxarm@...wei.com>,
        <linux-kernel@...r.kernel.org>, <huangjunxian6@...ilicon.com>
Subject: [PATCH for-rc 1/3] RDMA/hns: Remove unnecessary QP type checks

It is not necessary to check the type of the queue on IO path
because unsupported QP type cannot be created.

Signed-off-by: Chengchang Tang <tangchengchang@...wei.com>
Signed-off-by: Junxian Huang <huangjunxian6@...ilicon.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index d4c6b9bc0a4e..673fd31b9ecf 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -373,17 +373,10 @@ static int check_send_valid(struct hns_roce_dev *hr_dev,
 			    struct hns_roce_qp *hr_qp)
 {
 	struct ib_device *ibdev = &hr_dev->ib_dev;
-	struct ib_qp *ibqp = &hr_qp->ibqp;
 
-	if (unlikely(ibqp->qp_type != IB_QPT_RC &&
-		     ibqp->qp_type != IB_QPT_GSI &&
-		     ibqp->qp_type != IB_QPT_UD)) {
-		ibdev_err(ibdev, "not supported QP(0x%x)type!\n",
-			  ibqp->qp_type);
-		return -EOPNOTSUPP;
-	} else if (unlikely(hr_qp->state == IB_QPS_RESET ||
-		   hr_qp->state == IB_QPS_INIT ||
-		   hr_qp->state == IB_QPS_RTR)) {
+	if (unlikely(hr_qp->state == IB_QPS_RESET ||
+		     hr_qp->state == IB_QPS_INIT ||
+		     hr_qp->state == IB_QPS_RTR)) {
 		ibdev_err(ibdev, "failed to post WQE, QP state %u!\n",
 			  hr_qp->state);
 		return -EINVAL;
@@ -772,15 +765,6 @@ static int check_recv_valid(struct hns_roce_dev *hr_dev,
 			    struct hns_roce_qp *hr_qp)
 {
 	struct ib_device *ibdev = &hr_dev->ib_dev;
-	struct ib_qp *ibqp = &hr_qp->ibqp;
-
-	if (unlikely(ibqp->qp_type != IB_QPT_RC &&
-		     ibqp->qp_type != IB_QPT_GSI &&
-		     ibqp->qp_type != IB_QPT_UD)) {
-		ibdev_err(ibdev, "unsupported qp type, qp_type = %d.\n",
-			  ibqp->qp_type);
-		return -EOPNOTSUPP;
-	}
 
 	if (unlikely(hr_dev->state >= HNS_ROCE_DEVICE_STATE_RST_DOWN))
 		return -EIO;
-- 
2.30.0