linux-kernel - Re: [PATCH v5 06/27] irq_domain/powerpc: eliminate irq_map; use irq_alloc

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Date:	Tue, 03 Apr 2012 09:38:47 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	Andreas Schwab <schwab@...ux-m68k.org>,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	Milton Miller <miltonm@....com>,
	Rob Herring <rob.herring@...xeda.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linuxppc-dev@...ts.ozlabs.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v5 06/27] irq_domain/powerpc: eliminate irq_map; use
 irq_alloc_desc() instead

On Mon, 2012-04-02 at 23:52 +0100, Russell King - ARM Linux wrote:
> If we want to fix it a better way, then sure, that'll be good.  But
> what
> we shouldn't do is re-introduce one regression to fix a different
> regression.
> 
> So, Thomas, what do you think about providing a way that a disabled
> interrupt could have its pending status cleared such that when it's
> enabled, any queued events are ignored?  Maybe an
> enable_and_clear_irq() ? 

Ok. Doesn't matter anyway, this shouldn't be the problem in this
specific case. IE. we shouldn't be setting that interrupt to NONE.

We should have parsed the device-tree and set the trigger appropriately.

Cheers,
Ben.


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