linux-kernel - Re: [PATCH] Introduce CONFIG_VIRT_TO

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Message-ID: <20070523070450.GN4095@ftp.linux.org.uk>
Date:	Wed, 23 May 2007 08:04:50 +0100
From:	Al Viro <viro@....linux.org.uk>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Introduce CONFIG_VIRT_TO_BUS

On Wed, May 23, 2007 at 05:01:55PM +1000, Stephen Rothwell wrote:
> Make some offending drivers depend on it and set
> CONFIG_ARCH_NO_VIRT_TO_BUS for ppc64 so that we don't build those drivers.

Seeing how few targets _do_ have that, I'd invert the that.  I.e. have
HAS_VIRT_TO_BUS in arch/*/Kconfig for the few architectures that have
that stuff.
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