linux-kernel - Re: [PATCH 3/3] net: via-rhine: add OF bus binding

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Date:	Tue, 28 Jan 2014 22:31:20 +0400
From:	Alexey Charkov <alchark@...il.com>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	netdev <netdev@...r.kernel.org>,
	Tony Prisk <linux@...sktech.co.nz>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Roger Luethi <rl@...lgate.ch>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] net: via-rhine: add OF bus binding

2014/1/28 Ben Hutchings <ben@...adent.org.uk>:
> On Mon, 2014-01-27 at 19:34 +0400, Alexey Charkov wrote:
>> 2014/1/27 Ben Hutchings <ben@...adent.org.uk>:
>> > On Mon, 2014-01-27 at 15:51 +0400, Alexey Charkov wrote:
>> >> This should make the driver usable with VIA/WonderMedia ARM-based
>> >> Systems-on-Chip integrated Rhine III adapters. Note that these
>> >> are always in MMIO mode, and don't have any known EEPROM.
>> > [...]
>> >> --- a/drivers/net/ethernet/via/Kconfig
>> >> +++ b/drivers/net/ethernet/via/Kconfig
>> >> @@ -19,7 +19,7 @@ if NET_VENDOR_VIA
>> >>
>> >>  config VIA_RHINE
>> >>         tristate "VIA Rhine support"
>> >> -       depends on PCI
>> >> +       depends on (PCI || USE_OF)
>> >>         select CRC32
>> >>         select MII
>> >>         ---help---
>> >
>> > This seems like the right thing to do, but it means you need to add
>> > #ifdef CONFIG_PCI and #ifdef CONFIG_USE_OF around the driver structures
>> > and related functions.
>>
>> Frankly, I would like to avoid that if possible (as pointed out in the
>> cover email), as I believe we would get a cleaner driver without
>> #ifdef. This is also the way it was done in via-velocity, and it works
>> just fine.
>
> OK, I'm surprised that all the PCI functions have dummy definitions.
>
>> > You should compile-test in configurations that have just one of those
>> > dependencies enabled.
>>
>> This has been compile-tested and runtime-tested in OF-only
>> configuration on WM8950, and Roger also tested it in PCI-only
>> configuration, so it seems to work fine.
> [...]
>
> Good, then I have no objection.

Thanks Ben! Would it be fine to add your Reviewed-by at the next
iteration, once I fix indentation of function arguments and
dev_is_pci()?

Thanks,
Alexey
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