Subject: Re: [PATCH v4 01/21] PM / devfreq: rockchip-dfi: Embed desc into private data struct

From: Jonathan Cameron <[email-masked]>
Date: Tue, 16 May 2023 16:12:18 +0100

On Fri,  5 May 2023 13:38:36 +0200
Sascha Hauer <[email-masked]> wrote:

> No need for an extra allocation, just embed the struct
> devfreq_event_desc into the private data struct.
> 
> Signed-off-by: Sascha Hauer <[email-masked]>

Seems sensible
Reviewed-by: Jonathan Cameron <[email-masked]>

> ---
>  drivers/devfreq/event/rockchip-dfi.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c
> index 39ac069cabc75..570f1b36c3153 100644
> --- a/drivers/devfreq/event/rockchip-dfi.c
> +++ b/drivers/devfreq/event/rockchip-dfi.c
> @@ -49,7 +49,7 @@ struct dmc_usage {
>   */
>  struct rockchip_dfi {
>  	struct devfreq_event_dev *edev;
> -	struct devfreq_event_desc *desc;
> +	struct devfreq_event_desc desc;
>  	struct dmc_usage ch_usage[RK3399_DMC_NUM_CH];
>  	struct device *dev;
>  	void __iomem *regs;
> @@ -203,14 +203,10 @@ static int rockchip_dfi_probe(struct platform_device *pdev)
>  	}
>  	data->dev = dev;
>  
> -	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
> -	if (!desc)
> -		return -ENOMEM;
> -
> +	desc = &data->desc;
>  	desc->ops = &rockchip_dfi_ops;
>  	desc->driver_data = data;
>  	desc->name = np->name;
> -	data->desc = desc;
>  
>  	data->edev = devm_devfreq_event_add_edev(&pdev->dev, desc);
>  	if (IS_ERR(data->edev)) {

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