linux-kernel - Re: [PATCH v2 3/5] PCI: st: Provide support for the sti PCIe controller

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Message-ID: <CAG374jCjTVBwiNrWoo=X9hUSb-etzn8G-XSXGO_nNYhiL_9k_A@mail.gmail.com>
Date:	Tue, 31 Mar 2015 11:11:44 +0200
From:	Gabriel Fernandez <gabriel.fernandez@...aro.org>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Fabrice Gasnier <fabrice.gasnier@...com>,
	Gabriel FERNANDEZ <gabriel.fernandez@...com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Srinivas Kandagatla <srinivas.kandagatla@...il.com>,
	Maxime Coquelin <maxime.coquelin@...com>,
	Patrice Chotard <patrice.chotard@...com>,
	Russell King <linux@....linux.org.uk>,
	Mohit Kumar <mohit.kumar@...com>,
	Jingoo Han <jg1.han@...sung.com>,
	Lucas Stach <l.stach@...gutronix.de>,
	Kishon Vijay Abraham I <kishon@...com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	Greg KH <gregkh@...uxfoundation.org>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
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	Viresh Kumar <viresh.kumar@...aro.org>,
	Thierry Reding <treding@...dia.com>,
	Phil Edworthy <phil.edworthy@...esas.com>,
	Minghuan Lian <Minghuan.Lian@...escale.com>,
	Tanmay Inamdar <tinamdar@....com>,
	Muralidharan Karicheri <m-karicheri2@...com>,
	Sachin Kamat <sachin.kamat@...sung.com>,
	Andrew Lunn <andrew@...n.ch>,
	Liviu Dudau <liviu.dudau@....com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"kernel@...inux.com" <kernel@...inux.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Lee Jones <lee.jones@...aro.org>,
	Paul Bolle <pebolle@...cali.nl>
Subject: Re: [PATCH v2 3/5] PCI: st: Provide support for the sti PCIe controller

Hi Bjorn,

pci-st.c driver could be modular with modification of pcie-designware
core driver. But as Fabrice said  it should be another patchset.

What do you prefer ?

drop all the module related macros as mentioned by Paul ?
or
keep macros like other vendors do ?

Thanks

Gabriel

On 18 March 2015 at 11:35, Paul Bolle <pebolle@...cali.nl> wrote:
> Hi Fabrice,
>
> Fabrice Gasnier schreef op wo 18-03-2015 om 09:49 [+0100]:
>> On 03/16/2015 04:11 PM, Paul Bolle wrote:
>> >> +config PCI_ST
>> >> +  bool "ST PCIe controller"
>> > You add a bool Kconfig symbol. A week or two ago I saw some patches fly
>> > by that - I think - allowed PCIe controllers to be built modular.
>>
>> Thanks for your review.
>>
>> Are you talking about "PCI: Export symbols of PCI functions" patch, that
>> is part of a series
>> named "pci: iproc: Add Broadcom iProc PCIe support" ?
>
> Yes, that is the series I was thinking about. (I made you search lkml,
> and that was a bit rude. But you found the patch anyhow.)
>
>> This controller doesn't look like to be based on pcie-designware core
>> driver.
>> Other vendors that are using "pcie-designware" core driver are also make
>> it bool.
>> The current core driver doesn't support module loading/unloading as I
>> see it.
>> If this is required, I also think this should be part of another patchset.
>>
>> What do you think ?
>
> I wouldn't know whether your driver might work as a loadable module, but
> other people reading this surely will. But if it can't work as a module
> you should drop all the module related macros etc. I spotted. Because
> then they serve no purpose.
>
>
> Paul Bolle
>
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