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

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Message-ID: <20090814223237.1ef61ff1@lxorguk.ukuu.org.uk>
Date:	Fri, 14 Aug 2009 22:32:37 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Ben Greear <greearb@...delatech.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: How to disable DMA for compact-flash disk?

> 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,
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