From: viresh.kumar@st•com (viresh kumar)
To: linux-arm-kernel@lists•infradead.org
Subject: spi/spi-pl022: Query on working of DMA mode
Date: Thu, 4 Aug 2011 09:09:39 +0530 [thread overview]
Message-ID: <4E3A147B.9060305@st.com> (raw)
In-Reply-To: <CACRpkdYk-jGCfYFjyOX9Lb=krG2A894wW7_Th4EjYgKi7CJaLQ@mail.gmail.com>
On 08/03/2011 08:28 PM, Linus Walleij wrote:
>> > Here, allocation is requested with GFP_KERNEL flag, from a tasklet.
>> > Which gives following crash logs:
> What happens if you replace it with GFP_NOWAIT?
>
> That should work for everybody.
>
> Or you could remove the tasklet allover and replace it with a workqueue.
>
Ok. I will fix this and include in my patchset.
>> > Is DMA mode working in your case?
> Yes, magically :-/
But how? Don't you have any message with more than one transfer in it?
--
viresh
next prev parent reply other threads:[~2011-08-04 3:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-03 11:32 spi/spi-pl022: Query on working of DMA mode viresh kumar
2011-08-03 14:58 ` Linus Walleij
2011-08-04 3:39 ` viresh kumar [this message]
2011-08-04 10:16 ` Linus Walleij
2011-08-04 10:22 ` viresh kumar
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