tree: git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git for-6.1/common_kmalloc head: b261334803b44092acd06be3c9f32c46af818359 commit: 79c7527b9805edf14c952deca45de60a8a06a414 [12/17] mm/sl[au]b: generalize kmalloc subsystem config: s390-randconfig-r044-20220823 (https://download.01.org/0day-ci/archive/20220824/202208240825.lwZks9Hg-lkp@xxxxxxxxx/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project b04d01c009d7f66bcca9138d2ce40999eedf104d) 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 s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git/commit/?id=79c7527b9805edf14c952deca45de60a8a06a414 git remote add vbabka-slab git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git git fetch --no-tags vbabka-slab for-6.1/common_kmalloc git checkout 79c7527b9805edf14c952deca45de60a8a06a414 # 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=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> mm/slab_common.c:1023:7: warning: no previous prototype for function '__kmalloc_large_node' [-Wmissing-prototypes] void *__kmalloc_large_node(size_t size, gfp_t flags, int node) ^ mm/slab_common.c:1023:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void *__kmalloc_large_node(size_t size, gfp_t flags, int node) ^ static 1 warning generated. vim +/__kmalloc_large_node +1023 mm/slab_common.c 1016 1017 /* 1018 * To avoid unnecessary overhead, we pass through large allocation requests 1019 * directly to the page allocator. We use __GFP_COMP, because we will need to 1020 * know the allocation order to free the pages properly in kfree. 1021 */ 1022 > 1023 void *__kmalloc_large_node(size_t size, gfp_t flags, int node) 1024 { 1025 struct page *page; 1026 void *ptr = NULL; 1027 unsigned int order = get_order(size); 1028 1029 if (unlikely(flags & GFP_SLAB_BUG_MASK)) 1030 flags = kmalloc_fix_flags(flags); 1031 1032 flags |= __GFP_COMP; 1033 page = alloc_pages_node(node, flags, order); 1034 if (page) { 1035 ptr = page_address(page); 1036 mod_lruvec_page_state(page, NR_SLAB_UNRECLAIMABLE_B, 1037 PAGE_SIZE << order); 1038 } 1039 1040 ptr = kasan_kmalloc_large(ptr, size, flags); 1041 /* As ptr might get tagged, call kmemleak hook after KASAN. */ 1042 kmemleak_alloc(ptr, size, 1, flags); 1043 1044 return ptr; 1045 } 1046 -- 0-DAY CI Kernel Test Service https://01.org/lkp
