linux-kernel - RE: [PATCH -tip] IA64: fix the compile error on IA64_DIG

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Message-Id: <20090128100454H.fujita.tomonori@lab.ntt.co.jp>
Date:	Wed, 28 Jan 2009 10:04:13 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	tony.luck@...el.com
Cc:	mingo@...e.hu, linux-kernel@...r.kernel.org,
	linux-ia64@...r.kernel.org
Subject: RE: [PATCH -tip] IA64: fix the compile error on IA64_DIG_VTD

On Wed, 28 Jan 2009 10:00:11 +0900
FUJITA Tomonori <fujita.tomonori@....ntt.co.jp> wrote:

> On Tue, 27 Jan 2009 09:17:58 -0800
> "Luck, Tony" <tony.luck@...el.com> wrote:
> 
> > > > > ---
> > > > >  arch/ia64/kernel/dma-mapping.c |    3 +++
> > > > >  arch/ia64/kernel/pci-swiotlb.c |    3 ---
> > > > >  2 files changed, 3 insertions(+), 3 deletions(-)
> > > >
> > > > Applied to tip/core/iommu, thanks!
> > >
> > > Tony, is this fix fine with you too?
> > 
> > It works ... and dma-mapping.c is OK as a location for the
> > definition.  But there seemes to be some small scope for a
> > related cleanup:
> > 
> > There are "extern" declarations for "iommu_detected" in both
> > <asm/iommu.h> (x86 and ia64) and also in <linux/dmar.h>
> 
> We can remove them in dmar.h. X86 exported iommu_detected and no_iommu
> in several IOMMU code and we merged them into dmar.h. Seems that we
                                                ~~~~~~
                                                asm/iommu.h
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