linux-kernel - Re: [PATCH v2 1/1] irqchip: imx-gpcv2: Simplify the implementation

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Date:	Fri, 28 Aug 2015 21:11:26 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Shenwei Wang <shenwei.wang@...escale.com>
cc:	shawn.guo@...aro.org, jason@...edaemon.net, sudeep.holla@....com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	b20788@...escale.com
Subject: Re: [PATCH v2 1/1] irqchip: imx-gpcv2: Simplify the implementation

On Wed, 26 Aug 2015, Shenwei Wang wrote:
>  u32 imx_gpcv2_get_wakeup_source(u32 **sources)
>  {
> -	if (!imx_gpcv2_instance)
> +	struct gpcv2_irqchip_data *cd;
> +	void __iomem *reg;
> +	int i;
> +
> +	cd = imx_gpcv2_instance;
> +	if (!cd)
>  		return 0;
> 
> +	for (i = 0; i < IMR_NUM; i++) {
> +		reg = cd->gpc_base + cd->cpu2wakeup + i * 4;
> +		cd->wakeup_sources[i] = readl_relaxed(reg);
> +	}
> +
>  	if (sources)
> -		*sources = imx_gpcv2_instance->wakeup_sources;
> +		*sources = cd->wakeup_sources;
> 
>  	return IMR_NUM;
>  }

So once again. As you said before nothing is going to use the case
where source == NULL, can we please get rid of it?

Thanks,

	tglx
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