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From: Anton Vorontsov <avorontsov@ru.mvista.com>
To: Matt Sealey <matt@genesi-usa.com>
Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org,
	linuxppc-dev@ozlabs.org, Li Yang <leoli@freescale.com>,
	Jeff Garzik <jgarzik@pobox.com>, Wang Jian <lark@linux.net.cn>
Subject: Re: [PATCH] pata_of_platform: fix no irq handling
Date: Tue, 7 Oct 2008 01:32:09 +0400	[thread overview]
Message-ID: <20081006213209.GA13072@oksana.dev.rtsoft.ru> (raw)
In-Reply-To: <48EA77EF.6080502@genesi-usa.com>

On Mon, Oct 06, 2008 at 03:41:19PM -0500, Matt Sealey wrote:
> There is a simple problem with the patch which is that an "IRQ 0" can and does
> actually exist on a bunch of platforms, at least to the best of my knowledge.
> 
> Checking for -1 (which means for definite, no irq at all, because it is
> totally unambiguous, as a -1 IRQ numbering is "impossible") is more correct.

This was discussed years ago.

http://lkml.org/lkml/2005/11/22/159
http://lkml.org/lkml/2005/11/22/227

-- 
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2

  reply	other threads:[~2008-10-06 21:32 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-06 17:26 [PATCH] pata_of_platform: fix no irq handling Anton Vorontsov
2008-10-06 20:41 ` Matt Sealey
2008-10-06 21:32   ` Anton Vorontsov [this message]
2008-10-07  1:30     ` Tejun Heo
2008-10-07  9:18       ` Wang Jian
2008-10-07  9:26       ` Anton Vorontsov
2008-10-07 10:04         ` Benjamin Herrenschmidt
2008-10-07  9:37       ` Alan Cox
2008-10-08  8:40         ` David Woodhouse
2008-10-08  9:00           ` Alan Cox
2008-10-08  9:59             ` Geert Uytterhoeven
2008-10-08 10:27               ` Alan Cox
2008-10-10 17:55               ` Paul Mundt
2008-10-13  6:56 ` Tejun Heo
2008-10-13 23:27   ` Benjamin Herrenschmidt
  -- strict thread matches above, loose matches on Subject: below --
2008-09-25  8:36 [PATCH] pata_platform struct resource signness fix Wang Jian
2008-09-25  8:54 ` Wang Jian
2008-09-25 10:40   ` Li Yang
2008-09-25 10:48     ` Anton Vorontsov
2008-09-29  4:19       ` Jeff Garzik
2008-09-29 13:32         ` [PATCH] pata_of_platform: fix no irq handling Anton Vorontsov
2008-08-11 14:48 Possible bug in IRQ handling in pata_of_platform / pata_platform Steven A. Falco
2008-08-11 15:19 ` [PATCH] pata_of_platform: fix no irq handling Anton Vorontsov
2008-08-11 16:23   ` Steven A. Falco
2008-08-11 17:07     ` Anton Vorontsov
2008-08-11 22:00       ` Benjamin Herrenschmidt
2008-08-12 14:00         ` Steven A. Falco
2008-08-12 14:04           ` Anton Vorontsov
2008-08-12 14:18             ` Stefan Roese
2008-08-12 14:18             ` Sergei Shtylyov
2008-08-12 14:31               ` Anton Vorontsov
2008-08-13 21:25                 ` Steven A. Falco
2008-08-11 16:29   ` Alan Cox
2008-08-11 16:36   ` Ben Dooks
2008-08-11 16:26     ` Alan Cox
2008-08-11 16:42     ` Steven A. Falco
2008-08-11 22:02     ` Benjamin Herrenschmidt

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