netdev - Re: [PATCH] net_dma: acquire/release dma channels on ifup/ifdown

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Message-Id: <20090111.002046.197779234.davem@davemloft.net>
Date:	Sun, 11 Jan 2009 00:20:46 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	dan.j.williams@...el.com
Cc:	netdev@...r.kernel.org, maciej.sosnowski@...el.com
Subject: Re: [PATCH] net_dma: acquire/release dma channels on ifup/ifdown

From: Dan Williams <dan.j.williams@...el.com>
Date: Fri, 09 Jan 2009 16:57:53 -0700

> The recent dmaengine rework removed the capability to remove dma device
> driver modules while net_dma is active.  Rather than notify
> dmaengine-clients that channels are trying to be removed, we now rely on
> clients to notify dmaengine when they no longer have a need for
> channels.  Teach net_dma to release channels by taking dmaengine
> references at netdevice open and dropping references at netdevice close.
> 
> Acked-by: Maciej Sosnowski <maciej.sosnowski@...el.com>
> Signed-off-by: Dan Williams <dan.j.williams@...el.com>

Applied, thanks!
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