From: Luck, Tony Date: Tue, 26 May 2009 22:45:12 +0000 (-0700) Subject: intel-iommu: Fix one last ia64 build problem in Pass Through Support X-Git-Tag: firefly_0821_release~13635^2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=008fe148cb0fb51d266baabe2c09997b21cf90c6;p=firefly-linux-kernel-4.4.55.git intel-iommu: Fix one last ia64 build problem in Pass Through Support 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 Signed-off-by: David Woodhouse --- diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h index 37d41ca5645a..745e095fe82e 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);