linux-kernel - RE: [PATCH] x86/ioapic: Fix that not all allocated irqs are ioapic type irqs

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Message-ID: <27240C0AC20F114CBF8149A2696CBE4A1A4EC6@SHSMSX101.ccr.corp.intel.com>
Date:	Fri, 19 Oct 2012 06:35:38 +0000
From:	"Liu, Chuansheng" <chuansheng.liu@...el.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	"tglx@...utronix.de" <tglx@...utronix.de>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"hpa@...or.com" <hpa@...or.com>,
	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	"mathias.nyman@...ux.intel.com" <mathias.nyman@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] x86/ioapic: Fix that not all allocated irqs are ioapic
 type irqs



> -----Original Message-----
> From: yhlu.kernel@...il.com [mailto:yhlu.kernel@...il.com] On Behalf Of
> Yinghai Lu
> impossible !
> 
> where is the irq_desc coming from. ?
Any other chip can call function irq_alloc_descs/irq_alloc_desc() to get irq_desc,
and other chip can has their own chip data.
It is this patch want to point out.
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