linux-kernel - Re: [PATCH V7 07/11] pci, acpi: Handle ACPI companion assignment.

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Date:	Thu, 12 May 2016 13:27:23 +0200
From:	"Rafael J. Wysocki" <rafael@...nel.org>
To:	Jayachandran C <jchandra@...adcom.com>
Cc:	Bjorn Helgaas <helgaas@...nel.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
	Tomasz Nowicki <tn@...ihalf.com>,
	Arnd Bergmann <arnd@...db.de>,
	Will Deacon <will.deacon@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Sinan Kaya <okaya@...eaurora.org>,
	robert.richter@...iumnetworks.com, Marcin Wojtas <mw@...ihalf.com>,
	Liviu.Dudau@....com, David Daney <ddaney@...iumnetworks.com>,
	Wangyijing <wangyijing@...wei.com>,
	Suravee Suthikulanit <Suravee.Suthikulpanit@....com>,
	Mark Salter <msalter@...hat.com>,
	Linux PCI <linux-pci@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linaro-acpi@...ts.linaro.org" <linaro-acpi@...ts.linaro.org>,
	Jon Masters <jcm@...hat.com>,
	Andrea Gallo <andrea.gallo@...aro.org>,
	Duc Dang <dhdang@....com>, jeremy.linton@....com,
	liudongdong3@...wei.com, Christopher Covington <cov@...eaurora.org>
Subject: Re: [PATCH V7 07/11] pci, acpi: Handle ACPI companion assignment.

On Thu, May 12, 2016 at 12:43 PM, Jayachandran C <jchandra@...adcom.com> wrote:
> On Thu, May 12, 2016 at 4:13 AM, Bjorn Helgaas <helgaas@...nel.org> wrote:
>> On Wed, May 11, 2016 at 10:30:51PM +0200, Rafael J. Wysocki wrote:
>>> On Wed, May 11, 2016 at 12:11 PM, Lorenzo Pieralisi
>>> <lorenzo.pieralisi@....com> wrote:
>>> > On Tue, May 10, 2016 at 08:37:00PM +0200, Rafael J. Wysocki wrote:
>>> >> On Tue, May 10, 2016 at 5:19 PM, Tomasz Nowicki <tn@...ihalf.com> wrote:

[cut]

>
> If we are moving the ACPI/PCI code from drivers/acpi to
> arch/arm64/ , there is an issue in having the header file
> ecam.h in drivers/pci
>
> The current include of "../pci/ecam.h" is slightly ugly (Arnd
> and David had already noted this), but including the driver
> header from arch code would be even worse.
>
> I can either merge ecam.h into include/linux/pci.h
> or move it to a new file include/linux/pci-ecam.h, any
> suggestion on which is preferable?

My preference would be pci-ecam.h as we did a similar thing for
pci-dma.h, for example, but basically this is up to Bjorn.