linux-kernel - Re: [PATCH 2/2] DMAENGINE: driver for the ARM PL080/PL081 PrimeCells

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Date:	Wed, 4 Aug 2010 14:52:46 -0700
From:	Dan Williams <dan.j.williams@...el.com>
To:	Linus Walleij <linus.ml.walleij@...il.com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	yuanyabin1978@...a.com, Peter Pearse <peter.pearse@....com>,
	Ben Dooks <ben-linux@...ff.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Alessandro Rubini <rubini@...pv.it>,
	Viresh Kumar <viresh.kumar@...com>,
	Russell King <rmk@....linux.org.uk>
Subject: Re: [PATCH 2/2] DMAENGINE: driver for the ARM PL080/PL081 PrimeCells

On Wed, Jul 28, 2010 at 4:12 PM, Linus Walleij
<linus.ml.walleij@...il.com> wrote:
> 2010/7/28 Dan Williams <dan.j.williams@...el.com>:
>>> +       txd = kzalloc(sizeof(struct pl08x_txd), GFP_KERNEL);
>>
>> ...appears in the prep routines.  Will this driver be used by any
>> storage controllers on the platfom?  Might we deadlock waiting on i/o
>> that needs to allocate a descriptor to complete?
>
> I haven't noticed anything but a descriptor pool is on my
> list of things to look into and fix.

If there is a list of things to fix and no acked-by's from anyone on
the cc list I assume you want to wait for 2.6.37??  I'm sending the
dmaengine/async_tx pull request this Friday.

--
Dan
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