tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9ccce092fc64d19504fa54de4fd659e279cc92e7 commit: cdf8a76fda4ae3b53c5a09e5a8c79e27b7b65d68 ubsan: move cc-option tests into Kconfig date: 5 months ago config: powerpc64-randconfig-r026-20210430 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8f5a2a5836cc8e4c1def2bdeb022e7b496623439) 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cdf8a76fda4ae3b53c5a09e5a8c79e27b7b65d68 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout cdf8a76fda4ae3b53c5a09e5a8c79e27b7b65d68 # 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 <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): mm/slub.c:1503:21: warning: unused function 'kmalloc_large_node_hook' [-Wunused-function] static inline void *kmalloc_large_node_hook(void *ptr, size_t size, gfp_t flags) ^ >> mm/slub.c:3253:6: warning: stack frame size of 2640 bytes in function 'kmem_cache_free_bulk' [-Wframe-larger-than=] void kmem_cache_free_bulk(struct kmem_cache *s, size_t size, void **p) ^ 2 warnings generated. -- >> drivers/gpu/drm/drm_edid.c:4998:13: warning: stack frame size of 2640 bytes in function 'drm_parse_cea_ext' [-Wframe-larger-than=] static void drm_parse_cea_ext(struct drm_connector *connector, ^ 1 warning generated. -- >> kernel/sched/topology.c:2029:1: warning: stack frame size of 2384 bytes in function 'build_sched_domains' [-Wframe-larger-than=] build_sched_domains(const struct cpumask *cpu_map, struct sched_domain_attr *attr) ^ 1 warning generated. vim +/kmem_cache_free_bulk +3253 mm/slub.c d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3251 d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3252 /* Note that interrupts must be enabled when calling this function. */ 376bf125ac781d Jesper Dangaard Brouer 2016-03-15 @3253 void kmem_cache_free_bulk(struct kmem_cache *s, size_t size, void **p) d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3254 { d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3255 if (WARN_ON(!size)) d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3256 return; d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3257 d1b2cf6cb84a9b Bharata B Rao 2020-10-13 3258 memcg_slab_free_hook(s, p, size); d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3259 do { d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3260 struct detached_freelist df; d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3261 d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3262 size = build_detached_freelist(s, size, p, &df); 84582c8ab9479f Arnd Bergmann 2016-12-12 3263 if (!df.page) d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3264 continue; d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3265 376bf125ac781d Jesper Dangaard Brouer 2016-03-15 3266 slab_free(df.s, df.page, df.freelist, df.tail, df.cnt,_RET_IP_); d0ecd894e3d5f7 Jesper Dangaard Brouer 2015-11-20 3267 } while (likely(size)); 484748f0b65a19 Christoph Lameter 2015-09-04 3268 } 484748f0b65a19 Christoph Lameter 2015-09-04 3269 EXPORT_SYMBOL(kmem_cache_free_bulk); 484748f0b65a19 Christoph Lameter 2015-09-04 3270 :::::: The code at line 3253 was first introduced by commit :::::: 376bf125ac781d32e202760ed7deb1ae4ed35d31 slub: clean up code for kmem cgroup support to kmem_cache_free_bulk :::::: TO: Jesper Dangaard Brouer <brouer@xxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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