Re: [PATCH 09/18] dmaengine/amba-pl08x: Schedule tasklet in case oferror interrupt

From: viresh kumar
Date: Sun Jul 31 2011 - 01:33:22 EST


On 7/30/11, Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
> 2011/7/29 Viresh Kumar <viresh.kumar@xxxxxx>:
> NAK.
>
> These snippets illustrate what is not good about this patch, you're making
> the driver fragile by removing checks for spurious IRQ.
>
> So for example if there is an error or TC IRQ on a channel that is not
> in use, what happens now?
>
> It used to result in IRQ_NONE, now all of a sudden we start handling
> spurious IRQs and claim IRQ_HANDLED with totally unpredictable
> results, whereas they would previously gather error metrics for
> spurious IRQs.
>

I got your point. Will resend this patch with better handling for
spurious interrupts.

--
viresh
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