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authorIngo Molnar <mingo@elte.hu>2009-01-04 10:55:02 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-04 11:00:05 +0100
commitc66b9906f863696159e05890bb7123269bb9a9de (patch)
tree8aa2277b033eb8c823289575134d21180ce42e73 /include/linux/dma_remapping.h
parent4010b0192ddf6ec7ec1b9feb9b0953692aeb7329 (diff)
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>
Diffstat (limited to 'include/linux/dma_remapping.h')
-rw-r--r--include/linux/dma_remapping.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h
index 136f170cecc2..af1dab41674b 100644
--- a/include/linux/dma_remapping.h
+++ b/include/linux/dma_remapping.h
@@ -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;