Hi Alex, I love your patch! Yet something to improve: [auto build test ERROR on vfio/next] [also build test ERROR on v5.11-rc7 next-20210211] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Alex-Williamson/vfio-type1-Use-follow_pte/20210213-030541 base: https://github.com/awilliam/linux-vfio.git next config: i386-randconfig-a002-20210209 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/d1aea3bcf226e5225e706acb7df2f4c68ea8858a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Alex-Williamson/vfio-type1-Use-follow_pte/20210213-030541 git checkout d1aea3bcf226e5225e706acb7df2f4c68ea8858a # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/iommu.h:10, from drivers/vfio/vfio_iommu_type1.c:27: drivers/vfio/vfio_iommu_type1.c: In function 'follow_fault_pfn': >> include/linux/pgtable.h:81:24: error: implicit declaration of function 'kunmap_atomic'; did you mean 'iommu_map_atomic'? [-Werror=implicit-function-declaration] 81 | #define pte_unmap(pte) kunmap_atomic((pte)) | ^~~~~~~~~~~~~ include/linux/mm.h:2231:2: note: in expansion of macro 'pte_unmap' 2231 | pte_unmap(pte); \ | ^~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:494:2: note: in expansion of macro 'pte_unmap_unlock' 494 | pte_unmap_unlock(ptep, ptl); | ^~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +81 include/linux/pgtable.h 974b9b2c68f3d3 Mike Rapoport 2020-06-08 76 974b9b2c68f3d3 Mike Rapoport 2020-06-08 77 #if defined(CONFIG_HIGHPTE) 974b9b2c68f3d3 Mike Rapoport 2020-06-08 78 #define pte_offset_map(dir, address) \ 974b9b2c68f3d3 Mike Rapoport 2020-06-08 79 ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \ 974b9b2c68f3d3 Mike Rapoport 2020-06-08 80 pte_index((address))) 974b9b2c68f3d3 Mike Rapoport 2020-06-08 @81 #define pte_unmap(pte) kunmap_atomic((pte)) 974b9b2c68f3d3 Mike Rapoport 2020-06-08 82 #else 974b9b2c68f3d3 Mike Rapoport 2020-06-08 83 #define pte_offset_map(dir, address) pte_offset_kernel((dir), (address)) 974b9b2c68f3d3 Mike Rapoport 2020-06-08 84 #define pte_unmap(pte) ((void)(pte)) /* NOP */ 974b9b2c68f3d3 Mike Rapoport 2020-06-08 85 #endif 974b9b2c68f3d3 Mike Rapoport 2020-06-08 86 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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