From: Andrew Morton <[email protected]>
Date: Wed, 17 Oct 2007 17:44:38 -0700
> On Wed, 17 Oct 2007 17:14:39 -0700
> Shannon Nelson <[email protected]> wrote:
>
> > + tx->callback = (void *)ioat_dma_test_callback;
>
> and when I remove this cast I get
>
> drivers/dma/ioat_dma.c: In function 'ioat_dma_self_test':
> drivers/dma/ioat_dma.c:718: warning: assignment from incompatible pointer type
>
> because ioat_dma_test_callback isn't void-returning. Something is wrong
> here. I assume that ioat_dma_test_callback() should just be
> void-returning?
In fact this might crash on systems that conditionally pop
return values based upon whether the function is void or not.
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