linux-kernel - Re: [PATCH v2 2/6] PCI/MSI: Factor out pci_get_msi

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Date:	Mon, 9 Sep 2013 17:20:44 +0200
From:	Alexander Gordeev <agordeev@...hat.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Tejun Heo <tj@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>, Joerg Roedel <joro@...tes.org>,
	Jan Beulich <JBeulich@...e.com>
Subject: Re: [PATCH v2 2/6] PCI/MSI: Factor out pci_get_msi_cap() interface

On Fri, Sep 06, 2013 at 05:32:05PM -0600, Bjorn Helgaas wrote:
> I propose that you rework it that way, and at least find out what
> (if anything) would break if we do that.  Or maybe we just give up
> some optimization; it would be nice to quantify that, too.

Hi Bjorn,

The series is what it seems a direction to take.

Looks like we need PPC folks to agree on the quota check update
for pSeries (yes, they do bail out with a positive return value
from arch_msi_check_device()):

	quota = msi_quota_for_device(pdev, nvec);

	if (quota && quota < nvec)
		return quota;

	return 0;

> Bjorn

-- 
Regards,
Alexander Gordeev
agordeev@...hat.com
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