iommu: Cleanup ifdefs in detect_intel_iommu()

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: yinghai@kernel.org
Cc: youquan.song@intel.com
Cc: joerg.roedel@amd.com
Cc: tony.luck@intel.com
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/20110824001456.386003047@sbsiddha-desk.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 4 insertions, 2 deletions

diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h
index 745e095fe82e..95461bb0b8e6 100644
--- a/arch/ia64/include/asm/iommu.h
+++ b/arch/ia64/include/asm/iommu.h
@@ -7,12 +7,14 @@
 
 extern void pci_iommu_shutdown(void);
 extern void no_iommu_init(void);
-extern int force_iommu, no_iommu;
-extern int iommu_detected;
 #ifdef  CONFIG_DMAR
+extern int force_iommu, no_iommu;
 extern int iommu_pass_through;
+extern int iommu_detected;
 #else
 #define iommu_pass_through      (0)
+#define no_iommu                (1)
+#define iommu_detected          (0)
 #endif
 extern void iommu_dma_init(void);
 extern void machvec_init(const char *name);