[linux-next:master 9549/9925] mm/kasan/common.c:280:6: sparse: sparse: symbol 'unpoison_slab_object' was not declared. Should it be static?

[linux-next:master 9549/9925] mm/kasan/common.c:280:6: sparse: sparse: symbol 'unpoison_slab_object' was not declared. Should it be static?

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   857647efa9be89a13cf8963c7e167fab062b28bb
commit: 7cd408d15052b2a3912781842ee7a11e6d9a4dcd [9549/9925] kasan: save alloc stack traces for mempool
config: x86_64-randconfig-123-20231221 (https://download.01.org/0day-ci/archive/20231222/202312220147.TAQKNUdL-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231222/202312220147.TAQKNUdL-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/202312220147.TAQKNUdL-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> mm/kasan/common.c:280:6: sparse: sparse: symbol 'unpoison_slab_object' was not declared. Should it be static?
>> mm/kasan/common.c:511:53: sparse: sparse: incorrect type in argument 3 (different base types) @@     expected restricted gfp_t [usertype] flags @@     got unsigned long [usertype] size @@
   mm/kasan/common.c:511:53: sparse:     expected restricted gfp_t [usertype] flags
   mm/kasan/common.c:511:53: sparse:     got unsigned long [usertype] size

vim +/unpoison_slab_object +280 mm/kasan/common.c

   279	
 > 280	void unpoison_slab_object(struct kmem_cache *cache, void *object, gfp_t flags,
   281				  bool init)
   282	{
   283		/*
   284		 * Unpoison the whole object. For kmalloc() allocations,
   285		 * poison_kmalloc_redzone() will do precise poisoning.
   286		 */
   287		kasan_unpoison(object, cache->object_size, init);
   288	
   289		/* Save alloc info (if possible) for non-kmalloc() allocations. */
   290		if (kasan_stack_collection_enabled() && !is_kmalloc_cache(cache))
   291			kasan_save_alloc_info(cache, object, flags);
   292	}
   293	

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