linux-kernel - Re: [PATCH v5 10/20] ARC: IRQ: do not use hwirq directly at arch_do

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Date:	Thu, 31 Dec 2015 05:21:26 +0000
From:	Noam Camus <noamc@...hip.com>
To:	Vineet Gupta <Vineet.Gupta1@...opsys.com>,
	"linux-snps-arc@...ts.infradead.org" 
	<linux-snps-arc@...ts.infradead.org>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Chris Metcalf" <cmetcalf@...hip.com>,
	"daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
	"marc.zyngier@....com" <marc.zyngier@....com>
Subject: Re: [PATCH v5 10/20] ARC: IRQ: do not use hwirq directly at
 arch_do_IRQ()

>From: Vineet Gupta <Vineet.Gupta1@...opsys.com>
>Sent: Wednesday, December 30, 2015 12:10 PM

>> --- a/arch/arc/Kconfig
>> +++ b/arch/arc/Kconfig
>> @@ -32,6 +32,7 @@ config ARC
>>       select HAVE_OPROFILE
>>       select HAVE_PERF_EVENTS
>>       select IRQ_DOMAIN
>> +     select HANDLE_DOMAIN_IRQ if ARC_PLAT_EZNPS

>On same lines as prev comment - just do this unconditionally for ARC port -
assuming this works with legacy domain as well.

Yes it should work for legacy domain.
On the other hand I can select it at the driver Kconfig itself and remove this line altogether.


>>
>> +#ifdef CONFIG_HANDLE_DOMAIN_IRQ
>> +extern void set_handle_irq(void (*handle_irq)(unsigned int hwirq,
>> +                                           struct pt_regs *));
>> +#endif

>Not needed !

I need to have it since we do not know at arch/arc/kernel/irq.c what is the domain allocated by the timer driver

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