Hi Peter, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.13-rc1 next-20210511] [cannot apply to hnaz-linux-mm/master arm64/for-next/core tip/perf/core] [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/Peter-Collingbourne/kasan-use-separate-un-poison-implementation-for-integrated-init/20210511-153308 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 1140ab592e2ebf8153d2b322604031a8868ce7a5 config: powerpc64-randconfig-r033-20210511 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a0fed635fe1701470062495a6ffee1c608f3f1bc) 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 # install powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # https://github.com/0day-ci/linux/commit/4c25c2115c30074af7d702e9db8ba9d0d0b2c578 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Peter-Collingbourne/kasan-use-separate-un-poison-implementation-for-integrated-init/20210511-153308 git checkout 4c25c2115c30074af7d702e9db8ba9d0d0b2c578 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> mm/mempool.c:110:8: error: too many arguments to function call, expected 2, have 3 false); ^~~~~ include/linux/kasan.h:314:20: note: 'kasan_poison_pages' declared here static inline void kasan_poison_pages(struct page *page, unsigned int order) {} ^ mm/mempool.c:119:10: error: too many arguments to function call, expected 2, have 3 false); ^~~~~ include/linux/kasan.h:315:20: note: 'kasan_unpoison_pages' declared here static inline void kasan_unpoison_pages(struct page *page, unsigned int order) {} ^ 2 errors generated. -- >> mm/page_alloc.c:1319:36: error: too many arguments to function call, expected 2, have 3 kasan_poison_pages(page, order, init); ~~~~~~~~~~~~~~~~~~ ^~~~ include/linux/kasan.h:314:20: note: 'kasan_poison_pages' declared here static inline void kasan_poison_pages(struct page *page, unsigned int order) {} ^ mm/page_alloc.c:2351:37: error: too many arguments to function call, expected 2, have 3 kasan_unpoison_pages(page, order, init); ~~~~~~~~~~~~~~~~~~~~ ^~~~ include/linux/kasan.h:315:20: note: 'kasan_unpoison_pages' declared here static inline void kasan_unpoison_pages(struct page *page, unsigned int order) {} ^ mm/page_alloc.c:3655:15: warning: no previous prototype for function 'should_fail_alloc_page' [-Wmissing-prototypes] noinline bool should_fail_alloc_page(gfp_t gfp_mask, unsigned int order) ^ mm/page_alloc.c:3655:10: note: declare 'static' if the function is not intended to be used outside of this translation unit noinline bool should_fail_alloc_page(gfp_t gfp_mask, unsigned int order) ^ static 1 warning and 2 errors generated. vim +110 mm/mempool.c 103 104 static __always_inline void kasan_poison_element(mempool_t *pool, void *element) 105 { 106 if (pool->alloc == mempool_alloc_slab || pool->alloc == mempool_kmalloc) 107 kasan_slab_free_mempool(element); 108 else if (pool->alloc == mempool_alloc_pages) 109 kasan_poison_pages(element, (unsigned long)pool->pool_data, > 110 false); 111 } 112 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org