Re: [PATCH 1/6] dmaengine/dw_dmac: Replace spin_lock_bh with irqsavevariants
From: viresh kumar
Date: Tue Apr 26 2011 - 23:47:59 EST
On 04/27/2011 02:03 AM, Russell King - ARM Linux wrote:
> On Tue, Apr 19, 2011 at 11:55:45AM +0530, viresh kumar wrote:
>> This must have been added in dw_dma_chan instead :(
>> Will resend it.
>
> Even that doesn't work. It has to be a local variable.
I assumed that flags wouldn't be updated if lock is already taken by some other thread.
In which case global flags would have worked fine.
But as i see now, that's incorrect. Flags is always changed, whether or not lock is taken.
Will resend it again.
--
viresh
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