On Thu, Mar 23, 2017 at 02:28:27AM +0800, kbuild test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git core > head: 21aff52ab2c831c2f07d48e2fa8d4bab26a66992 > commit: 21aff52ab2c831c2f07d48e2fa8d4bab26a66992 [3/3] iommu: Add dummy > implementations for !IOMMU_IOVA > config: x86_64-randconfig-a0-03222342 (attached as .config) > compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 > reproduce: > git checkout 21aff52ab2c831c2f07d48e2fa8d4bab26a66992 > # save the attached .config to linux build tree > make ARCH=x86_64 > > All errors (new ones prefixed by >>): > > >> drivers/iommu/iova.c:36: error: redefinition of 'init_iova_domain' > include/linux/iova.h:170: note: previous definition of 'init_iova_domain' > was here > >> drivers/iommu/iova.c:202: error: redefinition of 'alloc_iova_mem' > include/linux/iova.h:120: note: previous definition of 'alloc_iova_mem' > was here > >> drivers/iommu/iova.c:208: error: redefinition of 'free_iova_mem' > include/linux/iova.h:125: note: previous definition of 'free_iova_mem' was > here > >> drivers/iommu/iova.c:214: error: redefinition of 'iova_cache_get' > include/linux/iova.h:111: note: previous definition of 'iova_cache_get' > was here > >> drivers/iommu/iova.c:235: error: redefinition of 'iova_cache_put' > include/linux/iova.h:116: note: previous definition of 'iova_cache_put' > was here > >> drivers/iommu/iova.c:261: error: redefinition of 'alloc_iova' > include/linux/iova.h:137: note: previous definition of 'alloc_iova' was > here > >> drivers/iommu/iova.c:323: error: redefinition of 'find_iova' > include/linux/iova.h:177: note: previous definition of 'find_iova' was here > >> drivers/iommu/iova.c:343: error: redefinition of '__free_iova' > include/linux/iova.h:133: note: previous definition of '__free_iova' was > here > >> drivers/iommu/iova.c:361: error: redefinition of 'free_iova' > include/linux/iova.h:129: note: previous definition of 'free_iova' was here > >> drivers/iommu/iova.c:380: error: redefinition of 'alloc_iova_fast' > include/linux/iova.h:151: note: previous definition of 'alloc_iova_fast' > was here > >> drivers/iommu/iova.c:421: error: redefinition of 'free_iova_fast' > include/linux/iova.h:145: note: previous definition of 'free_iova_fast' > was here > >> drivers/iommu/iova.c:435: error: redefinition of 'put_iova_domain' > include/linux/iova.h:183: note: previous definition of 'put_iova_domain' > was here > >> drivers/iommu/iova.c:511: error: redefinition of 'reserve_iova' > include/linux/iova.h:158: note: previous definition of 'reserve_iova' was > here > >> drivers/iommu/iova.c:552: error: redefinition of 'copy_reserved_iova' > include/linux/iova.h:165: note: previous definition of > 'copy_reserved_iova' was here > >> drivers/iommu/iova.c:572: error: redefinition of 'split_and_remove_iova' > include/linux/iova.h:187: note: previous definition of > 'split_and_remove_iova' was here > >> drivers/iommu/iova.c:887: error: redefinition of 'free_cpu_cached_iovas' > include/linux/iova.h:195: note: previous definition of > 'free_cpu_cached_iovas' was here
*sigh* I think I messed up the #ifdef line. The attached .config has CONFIG_IOMMU_IOVA=m, which means that the #ifdef won't be true. I think the proper fix would be to: -#ifdef CONFIG_IOMMU_IOVA +#ifdef IS_ENABLED(CONFIG_IOMMU_IOVA) Joerg, can you fix that up yourself or do you want me to resend the patch with the fix rolled in? Thierry
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