linux-kernel - Re: [PATCH v11 06/19] irqchip: gic: Provide support for interrupt grouping

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Date:	Tue, 2 Sep 2014 22:36:20 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Daniel Thompson <daniel.thompson@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"kgdb-bugreport@...ts.sourceforge.net" 
	<kgdb-bugreport@...ts.sourceforge.net>,
	"patches@...aro.org" <patches@...aro.org>,
	"linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>,
	John Stultz <john.stultz@...aro.org>,
	Anton Vorontsov <anton.vorontsov@...aro.org>,
	Colin Cross <ccross@...roid.com>,
	"kernel-team@...roid.com" <kernel-team@...roid.com>,
	Rob Herring <robherring2@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Ben Dooks <ben.dooks@...ethink.co.uk>,
	Dave P Martin <Dave.Martin@....com>,
	Fabio Estevam <festevam@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Nicolas Pitre <nico@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Nicolas Pitre <nicolas.pitre@...aro.org>,
	Christoffer Dall <christoffer.dall@...aro.org>,
	Sricharan R <r.sricharan@...com>,
	Marc Zyngier <Marc.Zyngier@....com>
Subject: Re: [PATCH v11 06/19] irqchip: gic: Provide support for interrupt	grouping

On 2 Sep 2014, at 20:33, Russell King - ARM Linux <linux@....linux.org.uk> wrote:
> On Tue, Sep 02, 2014 at 02:00:40PM +0100, Daniel Thompson wrote:
>> diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
>> index 4b959e6..423707c 100644
>> --- a/drivers/irqchip/irq-gic.c
>> +++ b/drivers/irqchip/irq-gic.c
>> @@ -41,6 +41,9 @@
>> #include <linux/irqchip/arm-gic.h>
>> 
>> #include <asm/cputype.h>
>> +#ifdef CONFIG_FIQ
>> +#include <asm/fiq.h>
>> +#endif
> 
> Is there much advantage to this ifdef over providing a dummy asm/fiq.h
> in ARM64?

While it’s unlikely we’ll use FIQs on arm64 (they are generally
reserved for the secure world/firmware), I don’t mind an empty
asm/fiq.h file.

Catalin--
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