linux-kernel - Re: 2.6.22-rc1-mm1

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Message-ID: <20070521092449.34a50f2e@gondolin.boeblingen.de.ibm.com>
Date:	Mon, 21 May 2007 09:24:49 +0200
From:	Cornelia Huck <cornelia.huck@...ibm.com>
To:	"Williams, Dan J" <dan.j.williams@...el.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	<linux-kernel@...r.kernel.org>, "NeilBrown" <neilb@...e.de>,
	"Martin Schwidefsky" <schwidefsky@...ibm.com>,
	"linux-s390" <linux-s390@...r.kernel.org>
Subject: Re: 2.6.22-rc1-mm1 - s390 vs. md

On Fri, 18 May 2007 09:30:09 -0700,
"Williams, Dan J" <dan.j.williams@...el.com> wrote:

> When CONFIG_DMA_ENGINE=n async_tx_find_channel takes the form:
> ... async_tx_find_channel( ... )
> {
> 	return NULL;
> }
> 
> So in the S390 case the entire asynchronous path will be compiled away.

Unfortunately, do_async_xor() (and others) is not ifdef'ed and contains
dma_map_page(), which led to the compile failure...
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