tree: https://git.kernel.org/pub/scm/linux/kernel/git/vbabka/linux.git slab-remove-slob-v1 head: e612d206dc6302016d027138e6857c4e2849dd27 commit: 61d6f1c8051ee45121060b42aa414cdee228fadd [6/7] mm/slab: remove CONFIG_SLOB code from slab common code config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20230301/202303010735.Tws8Rww1-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/vbabka/linux.git/commit/?id=61d6f1c8051ee45121060b42aa414cdee228fadd git remote add vbabka https://git.kernel.org/pub/scm/linux/kernel/git/vbabka/linux.git git fetch --no-tags vbabka slab-remove-slob-v1 git checkout 61d6f1c8051ee45121060b42aa414cdee228fadd # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=um SUBARCH=i386 olddefconfig make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash 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/202303010735.Tws8Rww1-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from mm/mempool.c:21: >> mm/slab.h:769:6: error: field 'dump_unreclaimable_slab' declared as a function 769 | void dump_unreclaimable_slab(void); | ^~~~~~~~~~~~~~~~~~~~~~~ >> mm/slab.h:776:6: error: field '___cache_free' declared as a function 776 | void ___cache_free(struct kmem_cache *cache, void *x, unsigned long addr); | ^~~~~~~~~~~~~ >> mm/slab.h:783:1: error: expected specifier-qualifier-list before 'static' 783 | static inline int cache_random_seq_create(struct kmem_cache *cachep, | ^~~~~~ vim +/dump_unreclaimable_slab +769 mm/slab.h 44c5356fb46005 Christoph Lameter 2014-08-06 767 852d8be0ad8511 Yang Shi 2017-11-15 768 #if defined(CONFIG_SLAB) || defined(CONFIG_SLUB_DEBUG) 852d8be0ad8511 Yang Shi 2017-11-15 @769 void dump_unreclaimable_slab(void); 852d8be0ad8511 Yang Shi 2017-11-15 770 #else 852d8be0ad8511 Yang Shi 2017-11-15 771 static inline void dump_unreclaimable_slab(void) 852d8be0ad8511 Yang Shi 2017-11-15 772 { 852d8be0ad8511 Yang Shi 2017-11-15 773 } 852d8be0ad8511 Yang Shi 2017-11-15 774 #endif 852d8be0ad8511 Yang Shi 2017-11-15 775 55834c59098d0c Alexander Potapenko 2016-05-20 @776 void ___cache_free(struct kmem_cache *cache, void *x, unsigned long addr); 55834c59098d0c Alexander Potapenko 2016-05-20 777 7c00fce98c3e15 Thomas Garnier 2016-07-26 778 #ifdef CONFIG_SLAB_FREELIST_RANDOM 7c00fce98c3e15 Thomas Garnier 2016-07-26 779 int cache_random_seq_create(struct kmem_cache *cachep, unsigned int count, 7c00fce98c3e15 Thomas Garnier 2016-07-26 780 gfp_t gfp); 7c00fce98c3e15 Thomas Garnier 2016-07-26 781 void cache_random_seq_destroy(struct kmem_cache *cachep); 7c00fce98c3e15 Thomas Garnier 2016-07-26 782 #else 7c00fce98c3e15 Thomas Garnier 2016-07-26 @783 static inline int cache_random_seq_create(struct kmem_cache *cachep, 7c00fce98c3e15 Thomas Garnier 2016-07-26 784 unsigned int count, gfp_t gfp) 7c00fce98c3e15 Thomas Garnier 2016-07-26 785 { 7c00fce98c3e15 Thomas Garnier 2016-07-26 786 return 0; 7c00fce98c3e15 Thomas Garnier 2016-07-26 787 } 7c00fce98c3e15 Thomas Garnier 2016-07-26 788 static inline void cache_random_seq_destroy(struct kmem_cache *cachep) { } 7c00fce98c3e15 Thomas Garnier 2016-07-26 789 #endif /* CONFIG_SLAB_FREELIST_RANDOM */ 7c00fce98c3e15 Thomas Garnier 2016-07-26 790 :::::: The code at line 769 was first introduced by commit :::::: 852d8be0ad8511611eff18f28dce11d25195b654 mm: oom: show unreclaimable slab info when unreclaimable slabs > user memory :::::: TO: Yang Shi <yang.s@xxxxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
