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Date: Mon, 25 Oct 2010 16:39:58 +0100 (BST) From: Hin-Tak Leung <htl10@...rs.sourceforge.net> To: "John W. Linville" <linville@...driver.com> Cc: Larry Finger <Larry.Finger@...inger.net>, Serafeim Zanikolas <sez@...ian.org>, herton@...driva.com.br, joe@...ches.com, davem@...emloft.net, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] drivers: rtl818x: request DMA-able memory --- On Mon, 25/10/10, John W. Linville <linville@...driver.com> wrote: > > I had a quick look for similiar constructs and AFAIK > only the > > b43/b43legacy drivers uses DMA buffers. Seems to be a > rare practice. > > Is that something we should or should not do? > > It doesn't mean what you think it means. It is a > relic of the past, > used to indicate memory below 16MB so that ISA devices > could do DMA. 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"...) Hin-tak -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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