linux-kernel - Re: How to disable DMA for compact-flash disk?

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Message-ID: <4A85D921.3050604@candelatech.com>
Date:	Fri, 14 Aug 2009 14:37:37 -0700
From:	Ben Greear <greearb@...delatech.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: How to disable DMA for compact-flash disk?

On 08/14/2009 02:32 PM, Alan Cox wrote:
>> Can you give me a clue as to what code needs poking?  I'm working
>> on the latest 31-rc5 tree, btw.
>>
>>
>> PS.  Can't get an ide based 2.6.31-rc5 kernel to boot in F11, though it doesn't seem
>> to be related to ide.  I probably have something wrong in my .config.
>
> Tejun made it all very class based so you have inheriting operations
> structures thus in pata_via.c find
>
> static struct ata_port_operations via_port_ops = {
>          .inherits       =&ata_bmdma_port_ops,
>
> and change it to
>
> static struct ata_port_operations via_port_ops = {
>          .inherits       =&ata_bmdma32_port_ops,

Ok, I notice that my system has sata_via loaded as well,
and it is also not using the 32-bit port ops.  Should I
change it as well?

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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