Message-ID: <49666F5B.2090605@sgi.com>
Date: Thu, 08 Jan 2009 13:25:47 -0800
From: Mike Travis <travis@sgi.com>
User-Agent: Thunderbird 2.0.0.6 (X11/20070801)
MIME-Version: 1.0
To: David Daney <ddaney@caviumnetworks.com>
CC: Linus Torvalds <torvalds@linux-foundation.org>, rusty@rustcorp.com.au,
       linux-kernel@vger.kernel.org, linux-mips@linux-mips.org
Subject: Re: [PATCH] cpumask fallout: Initialize irq_default_affinity earlier.
References: <1231446081-8448-1-git-send-email-ddaney@caviumnetworks.com> <alpine.LFD.2.00.0901081227360.3283@localhost.localdomain> <496666CE.3050205@caviumnetworks.com>
In-Reply-To: <496666CE.3050205@caviumnetworks.com>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 993
Lines: 33

David Daney wrote:
> Linus Torvalds wrote:
> [...]
>> In fact, I think it already is a no-op in the UP case, and you can
>> literally just do
>>
>>     static inline void __init init_irq_default_affinity(void)
>>     {
>>          alloc_cpumask_var(&irq_default_affinity, GFP_KERNEL);
>>          cpumask_setall(irq_default_affinity);
>>     }
>>
>> and be done with it. I think it should all compile away to nothing if
>> CONFIG_SMP isn't set.
> 
> The 'inline' seems gratuitous to me.  Since it is static GCC should do
> the Right Thing.  However since you suggested it, I am testing it that way.
> 
> David Daney

It will probably need to be:

	alloc_bootmem_cpumask_var(&irq_default_affinity);

I am testing it on x86_64 as well.

Thanks,
Mike
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/