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From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
To: "Steven J. Magnani" <steve@digidescorp.com>
Cc: Dan Williams <dan.j.williams@intel.com>,
	Zhang Wei <zw@zh-kernel.org>, Li Yang <leoli@freescale.com>,
	linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [async_tx-next PATCH 2/2] fsldma: Fix cookie issues
Date: Mon, 22 Feb 2010 21:26:13 +0100 (CET)	[thread overview]
Message-ID: <Pine.LNX.4.64.1002222123350.4120@axis700.grange> (raw)
In-Reply-To: <1266860439-17352-1-git-send-email-steve@digidescorp.com>

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/

  reply	other threads:[~2010-02-22 20:26 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-22 17:40 Steven J. Magnani
2010-02-22 20:26 ` Guennadi Liakhovetski [this message]
2010-02-25 19:25   ` Ira W. Snyder

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