Message-ID: <54648138.2070900@linux.intel.com>
Date: Thu, 13 Nov 2014 18:00:24 +0800
From: Jiang Liu <jiang.liu@linux.intel.com>
Organization: Intel
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To: Yingjoe Chen <yingjoe.chen@mediatek.com>,
        Thomas Gleixner <tglx@linutronix.de>
CC: LKML <linux-kernel@vger.kernel.org>, Bjorn Helgaas <bhelgaas@google.com>,
        Grant Likely <grant.likely@linaro.org>,
        Marc Zyngier <marc.zyngier@arm.com>,
        Yijing Wang <wangyijing@huawei.com>
Subject: Re: [patch 07/16] genirq: Introduce helper irq_domain_set_info()
 to reduce duplicated code
References: <20141112133941.647950773@linutronix.de>	 <20141112134120.393705922@linutronix.de> <1415872649.17958.37.camel@mtksdaap41>
In-Reply-To: <1415872649.17958.37.camel@mtksdaap41>
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Sender: linux-kernel-owner@vger.kernel.org

On 2014/11/13 17:57, Yingjoe Chen wrote:
> On Wed, 2014-11-12 at 13:43 +0000, Thomas Gleixner wrote:
>> Index: tip/kernel/irq/irqdomain.c
>> ===================================================================
>> --- tip.orig/kernel/irq/irqdomain.c
>> +++ tip/kernel/irq/irqdomain.c
>> @@ -882,6 +882,16 @@ int irq_domain_set_hwirq_and_chip(struct
>>  	return 0;
>>  }
>>  
>> +void irq_domain_set_info(struct irq_domain *domain, unsigned int virq,
>> +			 irq_hw_number_t hwirq, struct irq_chip *chip,
>> +			 void *chip_data, irq_flow_handler_t handler,
>> +			 void *handler_data, const char *handler_name)
>> +{
>> +	irq_domain_set_hwirq_and_chip(domain, virq, hwirq, chip, chip_data);
>> +	__irq_set_handler(virq, handler, 0, handler_name);
>> +	irq_set_handler_data(virq, handler_data);
>> +}
>> +
> 
> Hi,
> 
> While trying to use this function, I'm not sure about its interface.
> This function have 8 parameters but only save 3 function calls. After
> checking uses in Jiang's original patch, I think this make code harder
> to understand.
Hi Joe,
	It's true, but we also want to reduce duplicated code:(
Regards!
Gerry
> 
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