Re: [PATCH RFC 12/20] kasan: save alloc stack traces for mempool

[kernel test robot <lkp@intel.com>]

Hi,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on vbabka-slab/for-next linus/master v6.6 next-20231107]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/andrey-konovalov-linux-dev/kasan-rename-kasan_slab_free_mempool-to-kasan_mempool_poison_object/20231107-042850
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/325b1285d95f7bb6d2865750aa0088ab4cb5e0c3.1699297309.git.andreyknvl%40google.com
patch subject: [PATCH RFC 12/20] kasan: save alloc stack traces for mempool
config: arm64-randconfig-002-20231107 (https://download.01.org/0day-ci/archive/20231108/202311080634.DC7IwptF-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231108/202311080634.DC7IwptF-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311080634.DC7IwptF-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/kasan/common.c:270:6: warning: no previous prototype for 'unpoison_slab_object' [-Wmissing-prototypes]
     270 | void unpoison_slab_object(struct kmem_cache *cache, void *object, gfp_t flags,
         |      ^~~~~~~~~~~~~~~~~~~~


vim +/unpoison_slab_object +270 mm/kasan/common.c

   269	
 > 270	void unpoison_slab_object(struct kmem_cache *cache, void *object, gfp_t flags,
   271				  bool init)
   272	{
   273		/*
   274		 * Unpoison the whole object. For kmalloc() allocations,
   275		 * poison_kmalloc_redzone() will do precise poisoning.
   276		 */
   277		kasan_unpoison(object, cache->object_size, init);
   278	
   279		/* Save alloc info (if possible) for non-kmalloc() allocations. */
   280		if (kasan_stack_collection_enabled() && !is_kmalloc_cache(cache))
   281			kasan_save_alloc_info(cache, object, flags);
   282	}
   283	

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