linux-kernel - Re: [PATCH 3/3] IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

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Message-ID: <d120d5000610060707p13a9e97fkcb1219164da3f2d1@mail.gmail.com>
Date:	Fri, 6 Oct 2006 10:07:39 -0400
From:	"Dmitry Torokhov" <dmitry.torokhov@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Jeff Garzik" <jeff@...zik.org>,
	"Alan Cox" <alan@...rguk.ukuu.org.uk>,
	"David Howells" <dhowells@...hat.com>,
	"Andrew Morton" <akpm@...l.org>,
	"Thomas Gleixner" <tglx@...utronix.de>, torvalds@...l.org,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	"Greg KH" <greg@...ah.com>, "David Brownell" <david-b@...bell.net>,
	"Alan Stern" <stern@...land.harvard.edu>
Subject: Re: [PATCH 3/3] IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

On 10/6/06, Ingo Molnar <mingo@...e.hu> wrote:
>
> * Jeff Garzik <jeff@...zik.org> wrote:
>
> > >but pt_regs is alot less frequently used than irq - and where it's
> > >used they arent "drivers" but mostly arch level code like hw-timer
> > >handlers.
> >
> > Nonetheless the -vast majority- of drivers don't use the argument at
> > all, and the minority that do use it are not modern drivers.
>
> i'm all for changing that too :)
>

What drivers use irq argument? I know i8042 does but only to detect
whether interrupt routine was called because irq was raised or it was
called manually and I can use dev_id for that...

-- 
Dmitry
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