linux-kernel - Re: [patch 3/9] mfd/jz4740: Consolidate chained IRQ handler install/remove

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Message-ID: <20150728080459.GD14943@x1>
Date:	Tue, 28 Jul 2015 09:04:59 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Jiang Liu <jiang.liu@...ux.intel.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Julia Lawall <Julia.Lawall@...6.fr>
Subject: Re: [patch 3/9] mfd/jz4740: Consolidate chained IRQ handler
 install/remove

On Mon, 13 Jul 2015, Thomas Gleixner wrote:

> Chained irq handlers usually set up handler data as well. We now have
> a function to set both under irq_desc->lock. Replace the two calls
> with one.
> 
> Search and conversion was done with coccinelle:
> 
> Reported-by: Russell King <rmk+kernel@....linux.org.uk>
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> Cc: Julia Lawall <Julia.Lawall@...6.fr>
> Cc: Samuel Ortiz <sameo@...ux.intel.com>
> Cc: Lee Jones <lee.jones@...aro.org>
> ---
>  drivers/mfd/jz4740-adc.c |    6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)

Applied, thanks.

> Index: tip/drivers/mfd/jz4740-adc.c
> ===================================================================
> --- tip.orig/drivers/mfd/jz4740-adc.c
> +++ tip/drivers/mfd/jz4740-adc.c
> @@ -277,8 +277,7 @@ static int jz4740_adc_probe(struct platf
>  
>  	adc->gc = gc;
>  
> -	irq_set_handler_data(adc->irq, gc);
> -	irq_set_chained_handler(adc->irq, jz4740_adc_irq_demux);
> +	irq_set_chained_handler_and_data(adc->irq, jz4740_adc_irq_demux, gc);
>  
>  	writeb(0x00, adc->base + JZ_REG_ADC_ENABLE);
>  	writeb(0xff, adc->base + JZ_REG_ADC_CTRL);
> @@ -308,8 +307,7 @@ static int jz4740_adc_remove(struct plat
>  
>  	irq_remove_generic_chip(adc->gc, IRQ_MSK(5), IRQ_NOPROBE | IRQ_LEVEL, 0);
>  	kfree(adc->gc);
> -	irq_set_handler_data(adc->irq, NULL);
> -	irq_set_chained_handler(adc->irq, NULL);
> +	irq_set_chained_handler_and_data(adc->irq, NULL, NULL);
>  
>  	iounmap(adc->base);
>  	release_mem_region(adc->mem->start, resource_size(adc->mem));
> 
> 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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