Commit c66b9906 authored Jan 04, 2009 by Ingo Molnar

intel-iommu: fix build error with INTR_REMAP=y and DMAR=n



dmar.o can be built in the CONFIG_INTR_REMAP=y case but
iommu_calculate_agaw() is only available if VT-d is built as well.

So create an inline version of iommu_calculate_agaw() for the
!CONFIG_DMAR case. The iommu->agaw value wont be used in this
case, but the code is cleaner (has less #ifdefs) if we have it around
unconditionally.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 4010b019

include/linux/dma_remapping.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -17,7 +17,15 @@ struct dmar_domain;
		struct root_entry;

		extern void free_dmar_iommu(struct intel_iommu *iommu);

		#ifdef CONFIG_DMAR
		extern int iommu_calculate_agaw(struct intel_iommu *iommu);
		#else
		static inline int iommu_calculate_agaw(struct intel_iommu *iommu)
		{
		return 0;
		}
		#endif

		extern int dmar_disabled;