linux-kernel - Re: [PATCH 09/16] iommu/amd: Add IOAPIC remapping routines

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Message-ID: <20121001163338.GP4009@amd.com>
Date:	Mon, 1 Oct 2012 18:33:38 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
CC:	<iommu@...ts.linux-foundation.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 09/16] iommu/amd: Add IOAPIC remapping routines

On Mon, Oct 01, 2012 at 09:47:53AM -0400, Konrad Rzeszutek Wilk wrote:
> On Mon, Oct 01, 2012 at 10:40:51AM +0200, Joerg Roedel wrote:

> > Don't understand this. What is not set?
> 
> the IRQ_DELAYED_DISABLE. But I could not even find that enum anymore?
> Has that been obsoleted?

You are right, its was removed. Ok, I will remove that line of the
comment too.

> I was thinking the other way around. You recover the old affinity. Should
> you print out a warning mentioning to the system admin that you could not
> set the new affinity but reverted to the old one? Or will that not serve
> anything except spam the kernel logs?

Well, I don't think it makes sense to print an additional error at this
point. The error will be propagated upwards in the call-chain and in the
end it is up to the initiator how to handle this situation (for example
just return a failure to user-space).

	Joerg

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