linux-kernel - Re: [PATCH v7] ethernet/arc/arc_emac

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Message-ID: <1371825813.19215.34.camel@joe-AO722>
Date:	Fri, 21 Jun 2013 07:43:33 -0700
From:	Joe Perches <joe@...ches.com>
To:	Alexey Brodkin <Alexey.Brodkin@...opsys.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Andy Shevchenko <andy.shevchenko@...il.com>,
	Francois Romieu <romieu@...zoreil.com>,
	Vineet Gupta <Vineet.Gupta1@...opsys.com>,
	Mischa Jonker <Mischa.Jonker@...opsys.com>,
	Arnd Bergmann <arnd@...db.de>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	"David S. Miller" <davem@...emloft.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	Florian Fainelli <florian@...nwrt.org>
Subject: Re: [PATCH v7] ethernet/arc/arc_emac - Add new driver

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


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