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Date: Fri, 02 Jun 2006 19:49:31 -0400
From: Ben Collins <bcollins@ubuntu.com>
Subject: Re: [PATCH 2.6.17-rc5-mm2 17/18] sbp2: provide	helptext	for
	CONFIG_IEEE1394_SBP2_PHYS_DMA and mark it experimental
In-reply-to: <4480C7F4.907@s5r6.in-berlin.de>
To: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Olaf Hering <olh@suse.de>, Andrew Morton <akpm@osdl.org>,
       linux-kernel@vger.kernel.org, linux1394-devel@lists.sourceforge.net,
       Jody McIntyre <scjody@modernduck.com>
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On Sat, 2006-06-03 at 01:21 +0200, Stefan Richter wrote:
> Ben Collins wrote:
> > Rather it be in the config. Plus your suggestion still makes it
> > unusable :)
> 
> Right. But only if ohci1394 is loaded with phys_dma=0 or a controller 
> without phys DMA is used. Only these conditions let sbp2 run into the 
> routine which currently uses bus_to_virt.

Sure, that's not a problem. I just don't think we should make the option
available on platforms where it cannot work at all. No need to add to
the confusion.

> Would '&& (X86_32 || PPC_32)' work too?

Perfect.

-- 
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Linux 1394 - http://www.linux1394.org/
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