linux-kernel - Re: [PATCH] introduce config option to disable DMA zone on i386

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Message-ID: <Pine.LNX.4.61.0612281933570.23545@yvahk01.tjqt.qr>
Date:	Thu, 28 Dec 2006 19:36:08 +0100 (MET)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Marcelo Tosatti <marcelo@...ck.org>
cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	olpc-devel@...top.org
Subject: Re: [PATCH] introduce config option to disable DMA zone on i386


On Dec 28 2006 15:03, Marcelo Tosatti wrote:
>
>Comments?
>
>+config NO_DMA_ZONE
         ^^^^^^
>+	bool "DMA zone support"
              ^^^
>+	default n
                ^
>+	help
>+	 This disables support for the 16MiB DMA zone. Only enable this 
>+	 option if you are certain that your devices contain no DMA
>+	 addressing limitations.

The naming could be a bit better. If I have
  [*] DMA zone support
it should actually enable the DMA zone, not disable it. Wind it like you
prefer, either
(1) config NO_DMA_ZONE, bool "Disable DMA zone" default n or
(2) config DMA_ZONE, bool "[Enable] DMA zone" default y


	-`J'
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