netdev - Re: [PATCH v3] {net, IB}/mlx5: Use 'kvfree()' for memory allocated by 'kvzalloc()'

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Message-ID: <52e933f9bab99e5b04d7faac21ef4371776ed2e9.camel@mellanox.com>
Date:   Thu, 17 May 2018 00:42:33 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "christophe.jaillet@...adoo.fr" <christophe.jaillet@...adoo.fr>,
        "Matan Barak" <matanb@...lanox.com>, "jgg@...pe.ca" <jgg@...pe.ca>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "leon@...nel.org" <leon@...nel.org>,
        "dledford@...hat.com" <dledford@...hat.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH v3] {net, IB}/mlx5: Use 'kvfree()' for memory allocated by
 'kvzalloc()'

On Wed, 2018-05-16 at 21:07 +0200, Christophe JAILLET wrote:
> When 'kvzalloc()' is used to allocate memory, 'kvfree()' must be used
> to
> free it.
> 
> Fixes: 1cbe6fc86ccfe ("IB/mlx5: Add support for CQE compressing")
> Fixes: fed9ce22bf8ae ("net/mlx5: E-Switch, Add API to create vport rx
> rules")
> Fixes: 9efa75254593d ("net/mlx5_core: Introduce access functions to
> query vport RoCE fields")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
> v1 -> v2: More places to update have been added to the patch
> v2 -> v3: Add Fixes tag
> 
> 3 patches with one Fixes tag each should probably be better, but
> honestly, I won't send a v4.
> Fill free to split it if needed.

Applied to mlx5-next, thanks Christophe!

> ---
>  drivers/infiniband/hw/mlx5/cq.c                            | 2 +-
>  drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 2 +-
>  drivers/net/ethernet/mellanox/mlx5/core/vport.c            | 6 +++
> ---
>  3 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/infiniband/hw/mlx5/cq.c
> b/drivers/infiniband/hw/mlx5/cq.c
> index 77d257ec899b..6d52ea03574e 100644
> --- a/drivers/infiniband/hw/mlx5/cq.c
> +++ b/drivers/infiniband/hw/mlx5/cq.c
> @@ -849,7 +849,7 @@ static int create_cq_user(struct mlx5_ib_dev
> *dev, struct ib_udata *udata,
>  	return 0;
>  
>  err_cqb:
> -	kfree(*cqb);
> +	kvfree(*cqb);
>  
>  err_db:
>  	mlx5_ib_db_unmap_user(to_mucontext(context), &cq->db);
> diff --git
> a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
> b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
> index 35e256eb2f6e..b123f8a52ad8 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
> @@ -663,7 +663,7 @@ static int esw_create_vport_rx_group(struct
> mlx5_eswitch *esw)
>  
>  	esw->offloads.vport_rx_group = g;
>  out:
> -	kfree(flow_group_in);
> +	kvfree(flow_group_in);
>  	return err;
>  }
>  
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c
> b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
> index 177e076b8d17..719cecb182c6 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
> @@ -511,7 +511,7 @@ int mlx5_query_nic_vport_system_image_guid(struct
> mlx5_core_dev *mdev,
>  	*system_image_guid = MLX5_GET64(query_nic_vport_context_out,
> out,
>  					nic_vport_context.system_ima
> ge_guid);
>  
> -	kfree(out);
> +	kvfree(out);
>  
>  	return 0;
>  }
> @@ -531,7 +531,7 @@ int mlx5_query_nic_vport_node_guid(struct
> mlx5_core_dev *mdev, u64 *node_guid)
>  	*node_guid = MLX5_GET64(query_nic_vport_context_out, out,
>  				nic_vport_context.node_guid);
>  
> -	kfree(out);
> +	kvfree(out);
>  
>  	return 0;
>  }
> @@ -587,7 +587,7 @@ int mlx5_query_nic_vport_qkey_viol_cntr(struct
> mlx5_core_dev *mdev,
>  	*qkey_viol_cntr = MLX5_GET(query_nic_vport_context_out, out,
>  				   nic_vport_context.qkey_violation_
> counter);
>  
> -	kfree(out);
> +	kvfree(out);
>  
>  	return 0;
>  }