linux-kernel - Re: [PATCH v11 07/10] OF: Introduce helper function for getting PCI domain

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Date:	Mon, 22 Sep 2014 09:25:13 -0600
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	Liviu Dudau <Liviu.Dudau@....com>
Cc:	Arnd Bergmann <arnd@...db.de>, Rob Herring <robh+dt@...nel.org>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Catalin Marinas <Catalin.Marinas@....com>,
	Will Deacon <Will.Deacon@....com>,
	Russell King <linux@....linux.org.uk>,
	linux-pci <linux-pci@...r.kernel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Tanmay Inamdar <tinamdar@....com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Sinan Kaya <okaya@...eaurora.org>,
	Jingoo Han <jg1.han@...sung.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Suravee Suthikulanit <suravee.suthikulpanit@....com>,
	linux-arch <linux-arch@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Device Tree ML <devicetree@...r.kernel.org>,
	LAKML <linux-arm-kernel@...ts.infradead.org>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>
Subject: Re: [PATCH v11 07/10] OF: Introduce helper function for getting PCI domain_nr

On Mon, Sep 22, 2014 at 5:05 AM, Liviu Dudau <Liviu.Dudau@....com> wrote:
> On Fri, Sep 19, 2014 at 10:03:13PM +0100, Bjorn Helgaas wrote:
>> On Thu, Sep 18, 2014 at 02:30:22AM +0100, Liviu Dudau wrote:
>> > Add of_pci_get_domain_nr() to retrieve the PCI domain number
>> > of a given device from DT. If the information is not present,
>> > the function can be requested to allocate a new domain number.
>>
>> Is of_pci_get_domain_nr() used somewhere?  If the use is in some future
>> series, please mention it explicitly.  I'm just trying to avoid merging
>> unused code.
>
> It is used in the arm64 specific patch that I have dropped out of my
> pull request. After discussions with Catalin I will add the patch back
> into the tree that you've pulled from as he is OK with your tree carrying
> the whole package.
>
> I need to ask for some guidance here: for addressing some of your comments
> and Rob's I can add more patches in my v11 branch and you can pull them
> when you think they are ready. But one of your comments was requesting
> splitting a patch into two blocks - one that moves of_pci_range_to_resource()
> into drivers/of/address.c and one that fixes it's behaviour - and I don't
> know how you would like that handled. Should I revert the original patch
> and add the new ones, or should I rebase the whole series into a different
> branch that you can pull from?

I guess the easiest thing is probably just to send a v12 series.  I
was hoping we were close enough for me to just hand-integrate minor
tweaks into my branch, but I think that will just create more
confusion.

Bjorn
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