linux-kernel - Re: [PATCH v2 08/11] irqdomain: Refactor irq_domain_associate

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Date:	Tue, 18 Jun 2013 21:04:55 +1000
From:	Michael Neuling <mikey@...ling.org>
To:	Grant Likely <grant.likely@...aro.org>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-next <linux-next@...r.kernel.org>,
	Linux PPC dev <linuxppc-dev@...abs.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH v2 08/11] irqdomain: Refactor irq_domain_associate_many()

Grant Likely <grant.likely@...aro.org> wrote:

> On Tue, 18 Jun 2013 10:05:31 +0100, Grant Likely <grant.likely@...aro.org> wrote:
> > On Tue, Jun 18, 2013 at 2:25 AM, Michael Neuling <mikey@...ling.org> wrote:
> > > Michael Neuling <mikey@...ling.org> wrote:
> > >
> > >> Grant,
> > >>
> > >> In next-20130617 we are getting the below crash on POWER7.  Bisecting,
> > >> points to this patch (d39046ec72 in next)
> > >
> > > Also, reverting just d39046ec72 fixes the crash in next-20130617.
> > 
> > Odd. Of all the changes in that series, I would not have expected that
> > one to cause any problems. I'm digging into it now...
> 
> Ugh. I flubbed the commit. Try this patch. It should solve the problem:
> 

Yep, it fixes it.  Thanks.

Mikey

> From b7ba09c29ed36eda8e16453646b55faea7f9c25f Mon Sep 17 00:00:00 2001
> From: Grant Likely <grant.likely@...aro.org>
> Date: Tue, 18 Jun 2013 10:15:19 +0100
> Subject: [PATCH] irqdomain: Fix flubbed irq_domain_associate_many refactoring
> 
> commit d39046ec72, "irqdomain: Refactor irq_domain_associate_many()" was
> missing the following hunk which causes a boot failure on anything using
> irq_domain_add_tree() to allocate an irq domain.
> 
> Signed-off-by: Grant Likely <grant.likely@...aro.org>
> Cc: Michael Neuling <mikey@...ling.org>
> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>,
> Cc: Thomas Gleixner <tglx@...utronix.de>,
> Cc: Stephen Rothwell <sfr@...b.auug.org.au>
> ---
>  include/linux/irqdomain.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
> index 02f7658..c983ed1 100644
> --- a/include/linux/irqdomain.h
> +++ b/include/linux/irqdomain.h
> @@ -162,7 +162,7 @@ static inline struct irq_domain *irq_domain_add_tree(struct device_node *of_node
>  					 const struct irq_domain_ops *ops,
>  					 void *host_data)
>  {
> -	return irq_domain_add_linear(of_node, 0, ops, host_data);
> +	return __irq_domain_add(of_node, 0, ~0, 0, ops, host_data);
>  }
>  
>  extern void irq_domain_remove(struct irq_domain *host);
> -- 
> 1.8.1.2
> 
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