Patch "RDMA/hns: Remove unnecessary QP type checks" has been added to the 6.1-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    RDMA/hns: Remove unnecessary QP type checks

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     rdma-hns-remove-unnecessary-qp-type-checks.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 2034a3202243cae7e929139120e23e8a327a2b4b
Author: Junxian Huang <huangjunxian6@xxxxxxxxxxxxx>
Date:   Tue May 23 20:16:39 2023 +0800

    RDMA/hns: Remove unnecessary QP type checks
    
    [ Upstream commit b9989ab3f61ec459cbaf0a492fea3168bbfa4c7a ]
    
    It is not necessary to check the type of the queue on IO path because
    unsupported QP type cannot be created.
    
    Link: https://lore.kernel.org/r/20230523121641.3132102-2-huangjunxian6@xxxxxxxxxxxxx
    Signed-off-by: Chengchang Tang <tangchengchang@xxxxxxxxxx>
    Signed-off-by: Junxian Huang <huangjunxian6@xxxxxxxxxxxxx>
    Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
    Stable-dep-of: 323275ac2ff1 ("RDMA/hns: Fix cpu stuck caused by printings during reset")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 8b371d6ecbac9..b190e0cd86b45 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;
@@ -777,17 +770,6 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp,
 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;