linux-kernel - Re: [PATCH] irq: move some interrupt arch_* functions into struct irq

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Date:	Wed, 10 Mar 2010 18:28:11 +0000
From:	Ian Campbell <Ian.Campbell@...rix.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	Yinghai Lu <yinghai@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"linuxppc-dev@...abs.org" <linuxppc-dev@...abs.org>
Subject: Re: [PATCH] irq: move some interrupt arch_* functions into struct
 irq_chip.

On Wed, 2010-03-10 at 18:15 +0000, Eric W. Biederman wrote: 
> Ian Campbell <Ian.Campbell@...rix.com> writes:
> 
> > On Wed, 2010-03-10 at 17:42 +0000, Eric W. Biederman wrote:
> >> 
> >> 
> >> Ian Xen in this sense is simply not x86.  irq_cfg is not acpi or
> >> ioapic or anything but x86 specific.  It has everything to do with
> >> having a per cpu vector table of 256 entries and architecturally
> >> receiving a vector number when an interrupt is fired.
> >> 
> >> It totally makes sense for Xen to do something different because
> >> architecturally it has a completely different irq subsystem.
> >
> > OK, so that sounds like you would like the same patchset but without the
> > irq_cfg renaming? or potentially with renaming to x86_blah instead (I'll
> > rework to your preference).
> 
> Currently the renaming really makes it unclear what you are doing and for
> some reason the description of the renaming rubbed me the wrong way.

Sorry, I started off a bit confused and then totally misunderstood what
related to what and I think that came through in the description.

I'll respin without the first patch.

Ian.

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