Date: Fri, 9 May 2003 18:27:52 +0200
From: Willy Tarreau <willy@w.ods.org>
To: Arjan van de Ven <arjanv@redhat.com>
Cc: Willy Tarreau <willy@w.ods.org>, marcelo@conectiva.com.br,
       linux-kernel@vger.kernel.org
Subject: Re: Undo aic7xxx changes
Message-ID: <20030509162752.GA18661@alpha.home.local>
References: <Pine.LNX.4.55L.0305071716050.17793@freak.distro.conectiva> <2804790000.1052441142@aslan.scsiguy.com> <20030509120648.1e0af0c8.skraw@ithnet.com> <20030509120659.GA15754@alpha.home.local> <20030509150207.3ff9cd64.skraw@ithnet.com> <20030509132757.GA16649@alpha.home.local> <20030509154637.5cf14c8d.skraw@ithnet.com> <20030509145621.GA17581@alpha.home.local> <1052492883.1529.4.camel@laptop.fenrus.com>
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On Fri, May 09, 2003 at 05:08:03PM +0200, Arjan van de Ven wrote:
> > ull on 32 bits archs, because addr is
> > a bus_addr_t which is in turn dma_addr_t which itself is u32. So unless I don't
> > find the trick this would mean that this code should never be executed. Perhaps
> 
> dma_addr_t is either u32 or u64 on x86

Yes Arjan, but it's u64 only if CONFIG_HIGHMEM is set. So I repost my question
in another way : is this code supposed to be executed when CONFIG_HIGHMEM=n
since (u32)(~0xFFFFFFFF) = 0 ?

Regards,
Willy

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