linux-kernel - Re: [PATCH v5 02/25] PM / devfreq: rockchip-dfi: Embed desc into private data struct

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Date:   Tue, 13 Jun 2023 18:22:17 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Sascha Hauer <s.hauer@...gutronix.de>
Cc:     linux-rockchip@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, Heiko Stuebner <heiko@...ech.de>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>, kernel@...gutronix.de,
        Michael Riesch <michael.riesch@...fvision.net>,
        Robin Murphy <robin.murphy@....com>,
        Vincent Legoll <vincent.legoll@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: Re: [PATCH v5 02/25] PM / devfreq: rockchip-dfi: Embed desc into
 private data struct

Hi,

On Wed, May 24, 2023 at 10:31:30AM +0200, Sascha Hauer wrote:
> No need for an extra allocation, just embed the struct
> devfreq_event_desc into the private data struct.
> 
> Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
> Reviewed-by: Heiko Stuebner <heiko@...ech.de>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
> ---

Reviewed-by: Sebastian Reichel <sebastian.reichel@...labora.com>

-- Sebastian

>  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 74893c06aa087..467f9f42d38f7 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;
> @@ -204,14 +204,10 @@ 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)) {
> -- 
> 2.39.2
> 

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