From: Larry Finger <Larry.Finger@lwfinger.net>
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
Date: Mon, 25 Oct 2010 13:01:25 -0500 [thread overview]
Message-ID: <4CC5C5F5.3080607@lwfinger.net> (raw)
In-Reply-To: <902045.66378.qm@web29504.mail.ird.yahoo.com>
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
next prev parent reply other threads:[~2010-10-25 18:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-24 20:32 [PATCH] drivers: rtl818x: request DMA-able memory Serafeim Zanikolas
2010-10-25 13:24 ` Larry Finger
2010-10-25 14:11 ` Hin-Tak Leung
2010-10-25 14:22 ` John W. Linville
2010-10-25 15:39 ` Hin-Tak Leung
2010-10-25 18:01 ` Larry Finger [this message]
2010-10-25 17:44 ` Serafeim Zanikolas
2010-10-25 14:23 ` Johannes Berg
2010-10-25 13:35 ` John W. Linville
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