netdev - Re: [patch net-next 5/7] devlink: convert param list to xarray

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Date:   Thu, 9 Feb 2023 17:45:37 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        pabeni@...hat.com, edumazet@...gle.com, tariqt@...dia.com,
        saeedm@...dia.com, jacob.e.keller@...el.com, gal@...dia.com,
        kim.phillips@....com, moshe@...dia.com
Subject: Re: [patch net-next 5/7] devlink: convert param list to xarray

On Thu, Feb 09, 2023 at 04:43:06PM +0100, Jiri Pirko wrote:
> From: Jiri Pirko <jiri@...dia.com>
> 
> Loose the linked list for params and use xarray instead.

I gather this is related to:

[patch net-next 6/7] devlink: allow to call
        devl_param_driverinit_value_get() without holding instance lock

Perhaps it is worth mentioning that here.

> Signed-off-by: Jiri Pirko <jiri@...dia.com>

Irregardless, this looks good to me.

Reviewed-by: Simon Horman <simon.horman@...igine.com>

...

> diff --git a/net/devlink/leftover.c b/net/devlink/leftover.c
> index bbace07ff063..805c2b7ff468 100644
> --- a/net/devlink/leftover.c
> +++ b/net/devlink/leftover.c
> @@ -3954,26 +3954,22 @@ static int devlink_param_driver_verify(const struct devlink_param *param)

...

>  static struct devlink_param_item *
> -devlink_param_find_by_id(struct list_head *param_list, u32 param_id)
> +devlink_param_find_by_id(struct xarray *params, u32 param_id)
>  {
> -	struct devlink_param_item *param_item;
> -
> -	list_for_each_entry(param_item, param_list, list)
> -		if (param_item->param->id == param_id)
> -			return param_item;
> -	return NULL;
> +	return xa_load(params, param_id);
>  }

This change is particularly pleasing :)

...