linux-kernel - Re: [PATCH 1/9] SOC: brcmstb: add memory API

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Message-ID: <eebffba7-6fd7-5b34-577b-a6a42b94563b@gmail.com>
Date:   Wed, 18 Oct 2017 09:47:52 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Christoph Hellwig <hch@...radead.org>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     Jim Quinlan <jim2101024@...il.com>, linux-kernel@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com,
        linux-arm-kernel@...ts.infradead.org, linux-mips@...ux-mips.org,
        devicetree@...r.kernel.org, linux-pci@...r.kernel.org,
        Ralf Baechle <ralf@...ux-mips.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Gregory Fong <gregory.0xf0@...il.com>,
        Kevin Cernekee <cernekee@...il.com>,
        Brian Norris <computersforpeace@...il.com>
Subject: Re: [PATCH 1/9] SOC: brcmstb: add memory API

On 10/17/2017 11:46 PM, Christoph Hellwig wrote:
> On Tue, Oct 17, 2017 at 09:12:22AM -0700, Florian Fainelli wrote:
>>> Please move this into the arm arch code.
>>
>> No, this needs to work on both ARM and ARM64, hence the reason why this
>> is in a reasonably architecture neutral place.
> 
> So there is no other shared code between the ARM and ARM64 ports for
> this SOC?

The biuctrl.c file is also shared, and there are pending changes for
v4.15-rc1 that also bring more shared files to this directory.

> 
>>>> +EXPORT_SYMBOL(brcmstb_memory_phys_addr_to_memc);
>>>
>>>> +EXPORT_SYMBOL(brcmstb_memory_memc_size);
>>>
>>> Why is this exported?
>>
>> Because the PCIE RC driver can be built as a module.
> 
> Hmm, supporting PCIE RC as module sounds odd, but it seems like there
> are a few others like that.  At least make it EXPORT_SYMBOL_GPL() then
> to document the internal nature.

Fair enough. Thanks
-- 
-- 
Florian