linux-kernel - Re: [PATCH v5 1/7] pci: Introduce pci_register_io

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Message-ID: <20140306160442.GG6457@e106497-lin.cambridge.arm.com>
Date:	Thu, 6 Mar 2014 16:04:42 +0000
From:	Liviu Dudau <Liviu.Dudau@....com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-pci <linux-pci@...r.kernel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Catalin Marinas <Catalin.Marinas@....com>,
	Will Deacon <Will.Deacon@....com>,
	linaro-kernel <linaro-kernel@...ts.linaro.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	LAKML <linux-arm-kernel@...ts.infradead.org>,
	Tanmay Inamdar <tinamdar@....com>
Subject: Re: [PATCH v5 1/7] pci: Introduce pci_register_io_range() helper
 function.

On Tue, Mar 04, 2014 at 10:30:09PM +0000, Arnd Bergmann wrote:
> On Tuesday 04 March 2014, Liviu Dudau wrote:
> > +int __weak pci_register_io_range(phys_addr_t addr, resource_size_t size)
> > +{
> > +       return 0;
> > +}
> > +
> 
> How about returning an error here? You don't actually register the range.

That's not the intention here. I basically want a nop, as by default (read x86)
we do nothing with the IO range.

Best regards,
Liviu

> 
> 	Arnd
> 

-- 
====================
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| fix the world,  |
| but they're not |
| giving me the   |
 \ source code!  /
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