Re: [async_tx-next PATCH 2/2] fsldma: Fix cookie issues

[Guennadi Liakhovetski]

On Mon, 22 Feb 2010, Steven J. Magnani wrote:

> diff -uprN a/include/linux/dmaengine.h b/include/linux/dmaengine.h
> --- a/include/linux/dmaengine.h	2010-02-22 11:18:11.000000000 -0600
> +++ b/include/linux/dmaengine.h	2010-02-22 11:18:30.000000000 -0600
> @@ -31,6 +31,8 @@
>   * if dma_cookie_t is >0 it's a DMA request cookie, <0 it's an error code
>   */
>  typedef s32 dma_cookie_t;
> +#define DMA_MIN_COOKIE	1
> +#define DMA_MAX_COOKIE	2147483647

Taking into account, that dma_cookie_t is 32 bits:

+#define DMA_MAX_COOKIE		((1 << 31) - 1)

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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