linux-kernel - Re: [PATCH v6 2/6] pci: OF: Fix the conversion of IO ranges into IO resources.

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Date:	Sat, 8 Mar 2014 18:17:39 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Liviu Dudau <Liviu.Dudau@....com>
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 v6 2/6] pci: OF: Fix the conversion of IO ranges into IO resources.

On Wednesday 05 March 2014, Liviu Dudau wrote:
> +               unsigned long port = -1;
> +               if (!pci_register_io_range(range->cpu_addr, range->size))
> +                       port = pci_address_to_pio(range->cpu_addr);

I don't remember the outcome of my suggestion to just return 'port' from
pci_register_io_range(). In my mind that would be much simpler than
adding the range in a data structure just so we can look it up in the very
next line.

	Arnd
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