RE: [PATCH -tip] IA64: fix the compile error on IA64_DIG_VTD

[Luck, Tony]

> > > ---
> > >  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>

Does having both of these avoid some #include hell?

-Tony
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