linux-kernel - Re: [PATCH] x86/fixup_irq: Clean the offlining CPU from the irq affinity mask

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Message-ID: <5062BC7A.8020002@linux.vnet.ibm.com>
Date:	Wed, 26 Sep 2012 13:57:38 +0530
From:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
To:	"Liu, Chuansheng" <chuansheng.liu@...el.com>
CC:	"tglx@...utronix.de" <tglx@...utronix.de>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"yanmin_zhang@...ux.intel.com" <yanmin_zhang@...ux.intel.com>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH] x86/fixup_irq: Clean the offlining CPU from the irq affinity
 mask

On 09/26/2012 01:47 PM, Liu, Chuansheng wrote:
>> Shouldn't we warn if that fails?
> printk("Cannot set affinity for irq %i\n", irq);
> This is the warning when set affinity failed.
> 

I know.. What I meant is, the code warns only if chip->irq_set_affinity
is NULL and doesn't care if chip->irq_set_affinity was not NULL and
the function failed to set the affinity (ie., when chip->irq_set_affinity()
returns error). In other words, I meant to say that this is one more
case where we need to warn about our failure to set the irq affinity. 
 
Regards,
Srivatsa S. Bhat

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