netdev - Re: [PATCH 1/4] ucc_geth: Change private immrbar_virt_to

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Message-ID: <45CA01C9.3020309@freescale.com>
Date:	Wed, 07 Feb 2007 10:43:53 -0600
From:	Timur Tabi <timur@...escale.com>
To:	Kumar Gala <galak@...nel.crashing.org>
CC:	Li Yang <leoli@...escale.com>, netdev@...r.kernel.org,
	linuxppc-dev@...abs.org
Subject: Re: [PATCH 1/4] ucc_geth: Change private immrbar_virt_to_phys to
 generic iopa

Kumar Gala wrote:
> 
> On Feb 6, 2007, at 5:31 AM, Li Yang wrote:
> 
>> Get rid of private immrbar_virt_to_phys() routine and
>> use generic iopa().
> 
> Nack. iopa() isn't that generic, shouldn't we really be using the dma 
> mapping API here?

I'm having a hard time understanding what's wrong with iopa().  Is it because 
it's a 32-bit only function?  The memory has already been mapped with ioremap(), 
so why would we want to map it again?

-- 
Timur Tabi
Linux Kernel Developer @ Freescale
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