On Thu, Jul 4, 2024 at 5:35 PM kernel test robot <lkp@xxxxxxxxx> wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 661e504db04c6b7278737ee3a9116738536b4ed4 > commit: b4601d096aac8ed26afa88ef8b249975b0530ca1 mm/slab: fix 'variable obj_exts set but not used' warning > date: 10 days ago > config: x86_64-sof-customedconfig-amd-defconfig (https://download.01.org/0day-ci/archive/20240705/202407050845.zNONqauD-lkp@xxxxxxxxx/config) > compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240705/202407050845.zNONqauD-lkp@xxxxxxxxx/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot <lkp@xxxxxxxxx> > | Closes: https://lore.kernel.org/oe-kbuild-all/202407050845.zNONqauD-lkp@xxxxxxxxx/ Fix is posted at https://lore.kernel.org/all/20240711170216.1149695-1-surenb@xxxxxxxxxx/ over slab/for-next baseline because that branch contains another code refactoring [1] which would cause merge conflicts. [1] https://lore.kernel.org/all/20240704135941.1145038-1-surenb@xxxxxxxxxx/ > > All errors (new ones prefixed by >>): > > >> mm/slub.c:2077:1: error: unused function 'prepare_slab_obj_exts_hook' [-Werror,-Wunused-function] > 2077 | prepare_slab_obj_exts_hook(struct kmem_cache *s, gfp_t flags, void *p) > | ^~~~~~~~~~~~~~~~~~~~~~~~~~ > 1 error generated. > > > vim +/prepare_slab_obj_exts_hook +2077 mm/slub.c > > 0bedcc66d2a43a Vlastimil Babka 2023-10-03 2075 > 4b8736964640fe Suren Baghdasaryan 2024-03-21 2076 static inline struct slabobj_ext * > 4b8736964640fe Suren Baghdasaryan 2024-03-21 @2077 prepare_slab_obj_exts_hook(struct kmem_cache *s, gfp_t flags, void *p) > 3450a0e5a6fc4c Vlastimil Babka 2023-11-13 2078 { > 4b8736964640fe Suren Baghdasaryan 2024-03-21 2079 return NULL; > 4b8736964640fe Suren Baghdasaryan 2024-03-21 2080 } > 3450a0e5a6fc4c Vlastimil Babka 2023-11-13 2081 > > :::::: The code at line 2077 was first introduced by commit > :::::: 4b8736964640fe160724e7135dc62883bddcdace mm/slab: add allocation accounting into slab allocation and free paths > > :::::: TO: Suren Baghdasaryan <surenb@xxxxxxxxxx> > :::::: CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki
