Hi Alexander, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Alexander-Potapenko/mm-kmsan-handle-alloc-failures-in-kmsan_ioremap_page_range/20230412-225414 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230412145300.3651840-1-glider%40google.com patch subject: [PATCH 1/2] mm: kmsan: handle alloc failures in kmsan_vmap_pages_range_noflush() config: i386-randconfig-a013 (https://download.01.org/0day-ci/archive/20230413/202304130223.epEIvA1E-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/f8f0837563234abfae564b24278879d42d52a6e8 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Alexander-Potapenko/mm-kmsan-handle-alloc-failures-in-kmsan_ioremap_page_range/20230412-225414 git checkout f8f0837563234abfae564b24278879d42d52a6e8 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 prepare If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304130223.epEIvA1E-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from arch/x86/kernel/asm-offsets.c:14: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:22: In file included from include/linux/writeback.h:13: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:9: >> include/linux/kmsan.h:291:1: error: non-void function does not return a value [-Werror,-Wreturn-type] } ^ 1 error generated. make[2]: *** [scripts/Makefile.build:114: arch/x86/kernel/asm-offsets.s] Error 1 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:1286: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:226: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +291 include/linux/kmsan.h 68ef169a1dd20d Alexander Potapenko 2022-09-15 284 f8f0837563234a Alexander Potapenko 2023-04-12 285 static inline int kmsan_vmap_pages_range_noflush(unsigned long start, b073d7f8aee4eb Alexander Potapenko 2022-09-15 286 unsigned long end, b073d7f8aee4eb Alexander Potapenko 2022-09-15 287 pgprot_t prot, b073d7f8aee4eb Alexander Potapenko 2022-09-15 288 struct page **pages, b073d7f8aee4eb Alexander Potapenko 2022-09-15 289 unsigned int page_shift) b073d7f8aee4eb Alexander Potapenko 2022-09-15 290 { b073d7f8aee4eb Alexander Potapenko 2022-09-15 @291 } b073d7f8aee4eb Alexander Potapenko 2022-09-15 292 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
