From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: "Thomas Gleixner" <tglx@linutronix.de>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Rusty Russell" <rusty@rustcorp.com.au>,
"David Brownell" <dbrownell@users.sourceforge.net>,
"Eric Miao" <eric.y.miao@gmail.com>,
"Peter Zijlstra" <a.p.zijlstra@chello.nl>,
"John Stultz" <johnstul@us.ibm.com>,
"Nicolas Pitre" <nico@marvell.com>,
"Jamie Lokier" <jamie@shareable.org>,
LKML <linux-kernel@vger.kernel.org>,
"Remy Bohmer" <linux@bohmer.net>,
"Hugh Dickins" <hugh.dickins@tiscali.co.uk>,
linux-arm-kernel@lists.infradead.org,
"Andrea Gallo" <andrea.gallo@stericsson.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Ingo Molnar" <mingo@elte.hu>
Subject: Re: Get rid of IRQF_DISABLED - (was [PATCH] genirq: warn about IRQF_SHARED|IRQF_DISABLED)
Date: Mon, 30 Nov 2009 14:51:22 +0000 [thread overview]
Message-ID: <20091130145122.7057a1e3@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20091130143703.GA7028@n2100.arm.linux.org.uk>
> However, I think we still have a number of corner cases. The SMC91x
> driver comes to mind, with its stupidly small FIFOs, where the majority
> of implementations have to have the packets loaded via PIO - and this
> seems to generally happen from IRQ context.
Everything 8390 based is in the same boat. It relies on being able to
use disable_irq_nosync/enable_irq and knows all about the joys of
interrupt bus asynchronicity internally. That does however allow it to
get sane results by using the irq controller to mask the potentially
shared IRQ at source.
next prev parent reply other threads:[~2009-11-30 14:51 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20091127195857.GB28193@n2100.arm.linux.org.uk>
2009-11-27 21:10 ` [PATCH] warn about shared irqs requesting IRQF_DISABLED registered with setup_irq Uwe Kleine-König
2009-11-27 22:18 ` Thomas Gleixner
2009-11-28 20:03 ` Uwe Kleine-König
2009-11-28 21:50 ` Thomas Gleixner
2009-11-28 22:13 ` David Brownell
2009-11-29 2:31 ` Jamie Lokier
2009-11-29 10:26 ` Uwe Kleine-König
2009-11-29 15:18 ` Jamie Lokier
2009-11-29 15:27 ` Russell King - ARM Linux
2009-11-30 20:39 ` Jamie Lokier
2009-11-30 9:28 ` Uwe Kleine-König
2009-11-30 9:54 ` Thomas Gleixner
2009-11-28 22:09 ` David Brownell
2009-11-30 10:47 ` [PATCH] genirq: warn about IRQF_SHARED|IRQF_DISABLED at the right place Uwe Kleine-König
2009-11-30 13:54 ` Get rid of IRQF_DISABLED - (was [PATCH] genirq: warn about IRQF_SHARED|IRQF_DISABLED) Thomas Gleixner
2009-11-30 14:03 ` Peter Zijlstra
2009-11-30 14:24 ` Thomas Gleixner
2009-11-30 14:47 ` Alan Cox
2009-11-30 15:01 ` Russell King - ARM Linux
2009-11-30 15:32 ` Alan Cox
2009-11-30 15:43 ` Russell King - ARM Linux
2009-11-30 20:15 ` Andrew Victor
2009-11-30 20:53 ` David Brownell
2009-11-30 20:38 ` David Brownell
2009-12-01 1:42 ` Andy Walls
2009-11-30 19:59 ` Benjamin Herrenschmidt
2009-11-30 21:31 ` Thomas Gleixner
2009-11-30 21:42 ` Benjamin Herrenschmidt
2009-11-30 21:54 ` Thomas Gleixner
2009-11-30 14:37 ` Russell King - ARM Linux
2009-11-30 14:39 ` Russell King - ARM Linux
2009-11-30 17:48 ` Thomas Gleixner
2009-11-30 14:51 ` Alan Cox [this message]
2009-11-30 21:59 ` Thomas Gleixner
2009-11-30 23:30 ` Alan Cox
2009-11-30 15:38 ` Nicolas Pitre
2009-11-30 17:46 ` Thomas Gleixner
2009-11-30 19:51 ` Uwe Kleine-König
2009-11-30 21:23 ` Thomas Gleixner
2009-11-30 20:21 ` [PATCH] genirq: warn about IRQF_SHARED|IRQF_DISABLED at the right place David Brownell
2009-11-30 20:27 ` Uwe Kleine-König
2010-01-12 15:42 ` [RESEND PATCH] " Uwe Kleine-König
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