linux-kernel - Re: [RFC Part2 v1 01/21] irqdomain: Introduce new interfaces to support hierarchy irqdomains

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Date:	Thu, 18 Sep 2014 16:58:19 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	"Joe.C" <srv_yingjoe.chen@...iatek.com>
CC:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Yinghai Lu <yinghai@...nel.org>,
	Borislav Petkov <bp@...en8.de>,
	Grant Likely <grant.likely@...aro.org>,
	Marc Zyngier <marc.zyngier@....com>,
	Tony Luck <tony.luck@...el.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Joerg Roedel <joro@...tes.org>, x86@...nel.org,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-pci@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFC Part2 v1 01/21] irqdomain: Introduce new interfaces to support
 hierarchy irqdomains

On 2014/9/18 16:48, Joe.C wrote:
> On Thu, 2014-09-11 at 22:03 +0800, Jiang Liu wrote:
>> +#else	/* CONFIG_IRQ_DOMAIN_HIERARCHY */
>> +static inline int irq_domain_activate_irq(struct irq_data *data) { return 0; }
>> +static inline int irq_domain_deactivate_irq(struct irq_data *data) { return 0; }
>> +#endif	/* CONFIG_IRQ_DOMAIN_HIERARCHY */
>> +
> 
> I get the following build warnings on these lines:
> 
> ../include/linux/irqdomain.h:75:47: warning: 'struct irq_data' declared
> inside parameter list [enabled by default]
> ../include/linux/irqdomain.h:75:47: warning: its scope is only this
> definition or declaration, which is probably not what you want [enabled
> by default]
> ../include/linux/irqdomain.h:76:49: warning: 'struct irq_data' declared
> inside parameter list [enabled by default
Hi Joe,
	Thanks for testing. We should add a forward declaration of
struct irq_data to the top of include/linux/irqdomain.h.
Will fix it in next version.
Regards!
Gerry
> 
> Joe.C
> 
> 
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