| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 430/575] RDMA/mlx4: Return missed an error if device doesnt support steering | Date | Mon, 15 Nov 2021 18:02:35 +0100 |
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From: Leon Romanovsky <leonro@nvidia.com>
[ Upstream commit f4e56ec4452f48b8292dcf0e1c4bdac83506fb8b ]
The error flow fixed in this patch is not possible because all kernel users of create QP interface check that device supports steering before set IB_QP_CREATE_NETIF_QP flag.
Fixes: c1c98501121e ("IB/mlx4: Add support for steerable IB UD QPs") Link: https://lore.kernel.org/r/91c61f6e60eb0240f8bbc321fda7a1d2986dd03c.1634023677.git.leonro@nvidia.com Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/infiniband/hw/mlx4/qp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 6bc0818f4b2c6..c6a815a705fef 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1099,8 +1099,10 @@ static int create_qp_common(struct ib_pd *pd, struct ib_qp_init_attr *init_attr, if (dev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) qp->flags |= MLX4_IB_QP_NETIF; - else + else { + err = -EINVAL; goto err; + } } err = set_kernel_sq_size(dev, &init_attr->cap, qp_type, qp); -- 2.33.0
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