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RDMA/mlx5: Refactor QP type check to be as early as possible

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Perform QP type check in one place and fail as early as possible.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Leon Romanovsky 2018-02-25 13:39:52 +02:00 committed by Jason Gunthorpe
parent 74630e8204
commit 55de9a77da
1 changed files with 6 additions and 12 deletions
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18
drivers/infiniband/hw/mlx5/qp.c
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@ -2948,18 +2948,16 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
u16 op;
u8 tx_affinity = 0;
mlx5_st = to_mlx5_st(ibqp->qp_type == IB_QPT_DRIVER ?
qp->qp_sub_type : ibqp->qp_type);
if (mlx5_st < 0)
return -EINVAL;
context = kzalloc(sizeof(*context), GFP_KERNEL);
if (!context)
return -ENOMEM;
err = to_mlx5_st(ibqp->qp_type == IB_QPT_DRIVER ?
qp->qp_sub_type : ibqp->qp_type);
if (err < 0) {
mlx5_ib_dbg(dev, "unsupported qp type %d\n", ibqp->qp_type);
goto out;
}
context->flags = cpu_to_be32(err << 16);
context->flags = cpu_to_be32(mlx5_st << 16);
if (!(attr_mask & IB_QP_PATH_MIG_STATE)) {
context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11);
@ -3113,10 +3111,6 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
mlx5_cur = to_mlx5_state(cur_state);
mlx5_new = to_mlx5_state(new_state);
mlx5_st = to_mlx5_st(ibqp->qp_type == IB_QPT_DRIVER ?
qp->qp_sub_type : ibqp->qp_type);
if (mlx5_st < 0)
goto out;
if (mlx5_cur >= MLX5_QP_NUM_STATE || mlx5_new >= MLX5_QP_NUM_STATE ||
!optab[mlx5_cur][mlx5_new])