Messages in this thread Patch in this message | | | From | "Luck, Tony" <> | Subject | [PATCH] Fix one last ia64 build problem in Intel IOMMU Pass Through Support | Date | Tue, 26 May 2009 15:45:12 -0700 |
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On ia64 with CONFIG_DMAR=n and CONFIG_SWIOTLB=y (as used in arch/ia64/configs/tiger_defconfig) there is still a link error with iommu_pass_through listed as an undefined symbol:
arch/ia64/kernel/built-in.o: In function `pci_swiotlb_init': (.init.text+0x7f70): undefined reference to `iommu_pass_through'
Fix it by #defining iommu_pass_through away in asm/iommu.h
Signed-off-by: Tony Luck <tony.luck@intel.com>
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This fix for the iommu tree/branch that feeds to linux-next
diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h index 37d41ca..745e095 100644 --- a/arch/ia64/include/asm/iommu.h +++ b/arch/ia64/include/asm/iommu.h @@ -9,7 +9,11 @@ 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 iommu_pass_through; +#else +#define iommu_pass_through (0) +#endif extern void iommu_dma_init(void); extern void machvec_init(const char *name);
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