From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: David Brownell <david-b@pacbell.net>
Cc: lkml <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
hpa@zytor.com
Subject: Re: [patch] x86 supports NO_IRQ convention
Date: Tue, 24 Jun 2008 06:06:31 +1000 [thread overview]
Message-ID: <1214251591.8011.273.camel@pasglop> (raw)
In-Reply-To: <200806230428.20388.david-b@pacbell.net>
On Mon, 2008-06-23 at 04:28 -0700, David Brownell wrote:
> On Monday 23 June 2008, Benjamin Herrenschmidt wrote:
> > NO_IRQ on x86 is 0
>
> There is no such #define for it.
> And since zero is used for timer IRQs, it's not invalid.
I'll refer you to past discussions with Linus here. 0 is invalid to
drivers for all intend and purposes.
Cheers,
Ben.
next prev parent reply other threads:[~2008-06-23 20:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-23 2:53 [patch] x86 supports NO_IRQ convention David Brownell
2008-06-23 9:08 ` Alan Cox
2008-06-23 11:29 ` David Brownell
2008-06-23 14:20 ` Alan Cox
2008-06-23 11:34 ` Johannes Stezenbach
2008-06-23 10:42 ` Benjamin Herrenschmidt
2008-06-23 11:28 ` David Brownell
2008-06-23 20:06 ` Benjamin Herrenschmidt [this message]
[not found] <fa.mcHAIQmpGZB1Vrm7ZD4/q9eo08Y@ifi.uio.no>
[not found] ` <fa.E+RvbN2EFmsI1cxQ84PIB8FbX50@ifi.uio.no>
[not found] ` <fa.EDfpY1oxab2UaliWrUY0jyr5T1k@ifi.uio.no>
2008-06-24 2:20 ` Robert Hancock
2008-06-24 6:39 ` David Brownell
2008-06-24 9:12 ` Alan Cox
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