[PATCH 5.14 098/432] RDMA/mlx5: Delete not-available udata check

From: Greg Kroah-Hartman
Date: Thu Sep 16 2021 - 13:24:54 EST


From: Leon Romanovsky <leonro@xxxxxxxxxx>

[ Upstream commit 5f6bb7e32283b8e3339b7adc00638234ac199cc4 ]

XRC_TGT QPs are created through kernel verbs and don't have udata at all.

Fixes: 6eefa839c4dd ("RDMA/mlx5: Protect from kernel crash if XRC_TGT doesn't have udata")
Fixes: e383085c2425 ("RDMA/mlx5: Set ECE options during QP create")
Link: https://lore.kernel.org/r/b68228597e730675020aa5162745390a2d39d3a2.1628014762.git.leonro@xxxxxxxxxx
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/qp.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index a77db29f8391..fd88b9ae96fe 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -1906,7 +1906,6 @@ static int get_atomic_mode(struct mlx5_ib_dev *dev,
static int create_xrc_tgt_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
struct mlx5_create_qp_params *params)
{
- struct mlx5_ib_create_qp *ucmd = params->ucmd;
struct ib_qp_init_attr *attr = params->attr;
u32 uidx = params->uidx;
struct mlx5_ib_resources *devr = &dev->devr;
@@ -1926,8 +1925,6 @@ static int create_xrc_tgt_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
if (!in)
return -ENOMEM;

- if (MLX5_CAP_GEN(mdev, ece_support) && ucmd)
- MLX5_SET(create_qp_in, in, ece, ucmd->ece_options);
qpc = MLX5_ADDR_OF(create_qp_in, in, qpc);

MLX5_SET(qpc, qpc, st, MLX5_QP_ST_XRC);
--
2.30.2