diff mbox series

[2/6] net/mlx4_en: use kzalloc

Message ID 20220312102705.71413-3-Julia.Lawall@inria.fr (mailing list archive)
State Not Applicable
Headers show
Series use kzalloc | expand

Commit Message

Julia Lawall March 12, 2022, 10:27 a.m. UTC
Use kzalloc instead of kmalloc + memset.

The semantic patch that makes this change is:
(https://coccinelle.gitlabpages.inria.fr/website/)

//<smpl>
@@
expression res, size, flag;
@@
- res = kmalloc(size, flag);
+ res = kzalloc(size, flag);
  ...
- memset(res, 0, size);
//</smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>

---
 drivers/net/ethernet/mellanox/mlx4/en_rx.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Tariq Toukan March 14, 2022, 12:37 p.m. UTC | #1
On 3/12/2022 12:27 PM, Julia Lawall wrote:
> Use kzalloc instead of kmalloc + memset.
> 
> The semantic patch that makes this change is:
> (https://coccinelle.gitlabpages.inria.fr/website/)
> 
> //<smpl>
> @@
> expression res, size, flag;
> @@
> - res = kmalloc(size, flag);
> + res = kzalloc(size, flag);
>    ...
> - memset(res, 0, size);
> //</smpl>
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
> 
> ---
>   drivers/net/ethernet/mellanox/mlx4/en_rx.c |    3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
> index 8cfc649f226b..8f762fc170b3 100644
> --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
> +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
> @@ -1067,7 +1067,7 @@ static int mlx4_en_config_rss_qp(struct mlx4_en_priv *priv, int qpn,
>   	struct mlx4_qp_context *context;
>   	int err = 0;
>   
> -	context = kmalloc(sizeof(*context), GFP_KERNEL);
> +	context = kzalloc(sizeof(*context), GFP_KERNEL);
>   	if (!context)
>   		return -ENOMEM;
>   
> @@ -1078,7 +1078,6 @@ static int mlx4_en_config_rss_qp(struct mlx4_en_priv *priv, int qpn,
>   	}
>   	qp->event = mlx4_en_sqp_event;
>   
> -	memset(context, 0, sizeof(*context));
>   	mlx4_en_fill_qp_context(priv, ring->actual_size, ring->stride, 0, 0,
>   				qpn, ring->cqn, -1, context);
>   	context->db_rec_addr = cpu_to_be64(ring->wqres.db.dma);
> 

Thanks for your patch.

Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 8cfc649f226b..8f762fc170b3 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -1067,7 +1067,7 @@  static int mlx4_en_config_rss_qp(struct mlx4_en_priv *priv, int qpn,
 	struct mlx4_qp_context *context;
 	int err = 0;
 
-	context = kmalloc(sizeof(*context), GFP_KERNEL);
+	context = kzalloc(sizeof(*context), GFP_KERNEL);
 	if (!context)
 		return -ENOMEM;
 
@@ -1078,7 +1078,6 @@  static int mlx4_en_config_rss_qp(struct mlx4_en_priv *priv, int qpn,
 	}
 	qp->event = mlx4_en_sqp_event;
 
-	memset(context, 0, sizeof(*context));
 	mlx4_en_fill_qp_context(priv, ring->actual_size, ring->stride, 0, 0,
 				qpn, ring->cqn, -1, context);
 	context->db_rec_addr = cpu_to_be64(ring->wqres.db.dma);