Message-ID: <4CC5C5F5.3080607@lwfinger.net>
Date: Mon, 25 Oct 2010 13:01:25 -0500
From: Larry Finger <Larry.Finger@lwfinger.net>
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To: htl10@users.sourceforge.net
CC: "John W. Linville" <linville@tuxdriver.com>,
	Serafeim Zanikolas <sez@debian.org>, herton@mandriva.com.br,
	joe@perches.com, davem@davemloft.net,
	linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] drivers: rtl818x: request DMA-able memory
References: <902045.66378.qm@web29504.mail.ird.yahoo.com>
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On 10/25/2010 10:39 AM, Hin-Tak Leung wrote:
> 
> okay - sorry about the confusion - I was grep'ing for GFP_DMA and only b43/b43lagacy have it and it is relatively rare. AFAIK none of the rtl8187 devices are non-USB... probably a NACK then, but I should ask Serafeim if there is a reason for him to submit this patch? (other than "it says dma"...) 

There are some devices driven by b43/b43legacy that implement only 24-bit DMA.
For that reason, they need to allocate DMA buffers in the low 16 MB of RAM. For
rtl8187, that consideration does not apply.

Larry