net/mlx5: use anonymous DV allocator argument

The mlx5_dev_spawn function defines an struct mlx5dv_ctx_allocators type
variable several hundred rows after it starts, with the only use it
being passed as a parameter to the mlx5_glue->dv_set_context_attr
function.
However, according to DPDK Coding Style Guidelines, variables should be
declared at the start of a block of code rather than in the middle.
Therefore, to improve the Coding Style, the variable is passed directly
to the function without declaring it before.

Signed-off-by: Michael Baum <michaelba@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
---
 drivers/net/mlx5/linux/mlx5_os.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)
  

Hi,
 
> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Michael Baum
> Sent: Wednesday, June 24, 2020 4:47 PM
> To: dev@dpdk.org
> Cc: Matan Azrad <matan@mellanox.com>; Slava Ovsiienko
> <viacheslavo@mellanox.com>
> Subject: [dpdk-dev] [PATCH] net/mlx5: use anonymous DV allocator
> argument
> 
> The mlx5_dev_spawn function defines an struct mlx5dv_ctx_allocators type
> variable several hundred rows after it starts, with the only use it
> being passed as a parameter to the mlx5_glue->dv_set_context_attr
> function.
> However, according to DPDK Coding Style Guidelines, variables should be
> declared at the start of a block of code rather than in the middle.
> Therefore, to improve the Coding Style, the variable is passed directly
> to the function without declaring it before.
> 
> Signed-off-by: Michael Baum <michaelba@mellanox.com>
> Acked-by: Matan Azrad <matan@mellanox.com>
> ---
>  drivers/net/mlx5/linux/mlx5_os.c | 13 ++++++-------
>  1 file changed, 6 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/net/mlx5/linux/mlx5_os.c
> b/drivers/net/mlx5/linux/mlx5_os.c
> index f0147e6..2dc57b2 100644
> --- a/drivers/net/mlx5/linux/mlx5_os.c
> +++ b/drivers/net/mlx5/linux/mlx5_os.c
> @@ -988,14 +988,13 @@
>  	TAILQ_INIT(&priv->flow_meters);
>  	TAILQ_INIT(&priv->flow_meter_profiles);
>  	/* Hint libmlx5 to use PMD allocator for data plane resources */
> -	struct mlx5dv_ctx_allocators alctr = {
> -		.alloc = &mlx5_alloc_verbs_buf,
> -		.free = &mlx5_free_verbs_buf,
> -		.data = priv,
> -	};
>  	mlx5_glue->dv_set_context_attr(sh->ctx,
> -				       MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
> -				       (void *)((uintptr_t)&alctr));
> +			MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
> +			(void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
> +				.alloc = &mlx5_alloc_verbs_buf,
> +				.free = &mlx5_free_verbs_buf,
> +				.data = priv,
> +			}));
>  	/* Bring Ethernet device up. */
>  	DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
>  		eth_dev->data->port_id);
> --
> 1.8.3.1


Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh