netdev - Re: [PATCH rdma-next 04/10] RDMA/mlx5: Add alloc_op_port

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Date:   Mon, 23 Aug 2021 16:19:26 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Mark Zhang <markzhang@...dia.com>
Cc:     dledford@...hat.com, saeedm@...dia.com, linux-rdma@...r.kernel.org,
        netdev@...r.kernel.org, aharonl@...dia.com, netao@...dia.com,
        leonro@...dia.com
Subject: Re: [PATCH rdma-next 04/10] RDMA/mlx5: Add alloc_op_port_stats()
 support

On Wed, Aug 18, 2021 at 02:24:22PM +0300, Mark Zhang wrote:

> +static struct rdma_op_stats *
> +mlx5_ib_alloc_op_port_stats(struct ib_device *ibdev, u32 port_num)
> +{
> +	struct rdma_op_stats *opstats;
> +	struct mlx5_ib_dev *dev = to_mdev(ibdev);
> +	int num_opcounters, i, j = 0;
> +
> +	num_opcounters = ARRAY_SIZE(basic_op_cnts);
> +
> +	if (MLX5_CAP_FLOWTABLE(dev->mdev,
> +			       ft_field_support_2_nic_receive_rdma.bth_opcode))
> +		num_opcounters += ARRAY_SIZE(rdmarx_cnp_op_cnts);
> +
> +	if (MLX5_CAP_FLOWTABLE(dev->mdev,
> +			       ft_field_support_2_nic_transmit_rdma.bth_opcode))
> +		num_opcounters += ARRAY_SIZE(rdmatx_cnp_op_cnts);
> +
> +	opstats = kzalloc(sizeof(*opstats) +
> +			  num_opcounters * sizeof(struct rdma_op_counter),
> +			  GFP_KERNEL);

This should use struct_size

Jason