From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joe Perches <joe@perches.com>
Subject: Re: [PATCH v7] ethernet/arc/arc_emac - Add new driver
Date: Fri, 21 Jun 2013 07:43:33 -0700
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To: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>, Andy Shevchenko <andy.shevchenko@gmail.com>, Francois Romieu <romieu@fr.zoreil.com>, Vineet Gupta <Vineet.Gupta1@synopsys.com>, Mischa Jonker <Mischa.Jonker@synopsys.com>, Arnd Bergmann <arnd@arndb.de>, Grant Likely <grant.likely@linaro.org>, Rob Herring <rob.herring@calxeda.com>, Paul Gortmaker <paul.gortmaker@windriver.com>, "David S. Miller" <davem@davemloft.net>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "devicetree-discuss@lists.ozlabs.org" <devicetree-discuss@lists.ozlabs.org>, Florian Fainelli <florian@openwrt.org>
List-Id: devicetree@vger.kernel.org

On Fri, 2013-06-21 at 10:53 +0000, Alexey Brodkin wrote:
> On 06/21/2013 02:32 PM, Joe Perches wrote:
> > On Fri, 2013-06-21 at 11:20 +0400, Alexey Brodkin wrote:
> >> Driver for non-standard on-chip ethernet device ARC EMAC 10/100,
> >> instantiated in some legacy ARC (Synopsys) FPGA Boards such as
> >> ARCAngel4/ML50x.
[]
> >> +		rxbd->data = (unsigned char *)cpu_to_le32(rx_buff->skb->data);
> >
> > 32 bit only.  Should the Kconfig block have some arch_arc dependency
> > so it can't get compiled for 64 bit systems?
[]
> So for now I may easily add dependency on ARC if it makes acceptance of 
> driver easier.

I don't think it's a big problem.

Maybe add a Kconfig "depends on !64BIT".

Another thing to do would be to run it through sparse
with make C=1