[akpm-mm:mm-new 160/175] mm/kasan/tags.c:145:6: error: redefinition of 'kasan_save_free_info'

[akpm-mm:mm-new 160/175] mm/kasan/tags.c:145:6: error: redefinition of 'kasan_save_free_info'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new
head:   b0e07b9befa0558a80b281b7efcdb3717881c969
commit: 3d3c26eaf9f6e00779d27dd54d763c9bdc5dda3c [160/175] kasan: add shadow checks to wrappers and rename kasan_arch_is_ready
config: arm64-randconfig-001-20250719 (https://download.01.org/0day-ci/archive/20250719/202507190528.W6ndwfyg-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250719/202507190528.W6ndwfyg-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/202507190528.W6ndwfyg-lkp@intel.com/

All errors (new ones prefixed by >>):

>> mm/kasan/tags.c:145:6: error: redefinition of 'kasan_save_free_info'
     145 | void kasan_save_free_info(struct kmem_cache *cache, void *object)
         |      ^
   mm/kasan/kasan.h:403:20: note: previous definition is here
     403 | static inline void kasan_save_free_info(struct kmem_cache *cache, void *object)
         |                    ^
   1 error generated.
--
>> mm/kasan/sw_tags.c:125:6: error: redefinition of 'kasan_byte_accessible'
     125 | bool kasan_byte_accessible(const void *addr)
         |      ^
   mm/kasan/kasan.h:536:20: note: previous definition is here
     536 | static inline bool kasan_byte_accessible(const void *addr)
         |                    ^
   1 error generated.


vim +/kasan_save_free_info +145 mm/kasan/tags.c

ccf643e6dacf33 Andrey Konovalov 2022-09-05  144  
6b07434980a192 Andrey Konovalov 2022-09-05 @145  void kasan_save_free_info(struct kmem_cache *cache, void *object)

:::::: The code at line 145 was first introduced by commit
:::::: 6b07434980a1926780cb5c5644fb198fb9c3997b kasan: pass tagged pointers to kasan_save_alloc/free_info

:::::: TO: Andrey Konovalov <andreyknvl@google.com>
:::::: CC: Andrew Morton <akpm@linux-foundation.org>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [akpm-mm:mm-new 160/175] mm/kasan/tags.c:145:6: error: redefinition of 'kasan_save_free_info'

[Andrew Morton]

On Sat, 19 Jul 2025 05:28:51 +0800 kernel test robot <lkp@intel.com> wrote:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new
> head:   b0e07b9befa0558a80b281b7efcdb3717881c969
> commit: 3d3c26eaf9f6e00779d27dd54d763c9bdc5dda3c [160/175] kasan: add shadow checks to wrappers and rename kasan_arch_is_ready
> config: arm64-randconfig-001-20250719 (https://download.01.org/0day-ci/archive/20250719/202507190528.W6ndwfyg-lkp@intel.com/config)
> compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250719/202507190528.W6ndwfyg-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/202507190528.W6ndwfyg-lkp@intel.com/
> 
> All errors (new ones prefixed by >>):
> 
> >> mm/kasan/tags.c:145:6: error: redefinition of 'kasan_save_free_info'
>      145 | void kasan_save_free_info(struct kmem_cache *cache, void *object)
>          |      ^
>    mm/kasan/kasan.h:403:20: note: previous definition is here
>      403 | static inline void kasan_save_free_info(struct kmem_cache *cache, void *object)
>          |                    ^
>    1 error generated.

I'll add this.   It should repair the build, at least?

--- a/mm/kasan/tags.c~kasan-add-shadow-checks-to-wrappers-and-rename-kasan_arch_is_ready-fix
+++ a/mm/kasan/tags.c
@@ -142,7 +142,7 @@ void kasan_save_alloc_info(struct kmem_c
 	save_stack_info(cache, object, flags, false);
 }
 
-void kasan_save_free_info(struct kmem_cache *cache, void *object)
+void __kasan_save_free_info(struct kmem_cache *cache, void *object)
 {
 	save_stack_info(cache, object, 0, true);
 }
_

Re: [akpm-mm:mm-new 160/175] mm/kasan/tags.c:145:6: error: redefinition of 'kasan_save_free_info'

[Sabyrzhan Tasbolatov]

On Sun, Jul 20, 2025 at 5:04 AM Andrew Morton <akpm@linux-foundation.org> wrote:
>
> On Sat, 19 Jul 2025 05:28:51 +0800 kernel test robot <lkp@intel.com> wrote:
>
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new
> > head:   b0e07b9befa0558a80b281b7efcdb3717881c969
> > commit: 3d3c26eaf9f6e00779d27dd54d763c9bdc5dda3c [160/175] kasan: add shadow checks to wrappers and rename kasan_arch_is_ready
> > config: arm64-randconfig-001-20250719 (https://download.01.org/0day-ci/archive/20250719/202507190528.W6ndwfyg-lkp@intel.com/config)
> > compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250719/202507190528.W6ndwfyg-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/202507190528.W6ndwfyg-lkp@intel.com/
> >
> > All errors (new ones prefixed by >>):
> >
> > >> mm/kasan/tags.c:145:6: error: redefinition of 'kasan_save_free_info'
> >      145 | void kasan_save_free_info(struct kmem_cache *cache, void *object)
> >          |      ^
> >    mm/kasan/kasan.h:403:20: note: previous definition is here
> >      403 | static inline void kasan_save_free_info(struct kmem_cache *cache, void *object)
> >          |                    ^
> >    1 error generated.
>
> I'll add this.   It should repair the build, at least?

Yes, thanks, it should. Sorry, I've missed that.

>
> --- a/mm/kasan/tags.c~kasan-add-shadow-checks-to-wrappers-and-rename-kasan_arch_is_ready-fix
> +++ a/mm/kasan/tags.c
> @@ -142,7 +142,7 @@ void kasan_save_alloc_info(struct kmem_c
>         save_stack_info(cache, object, flags, false);
>  }
>
> -void kasan_save_free_info(struct kmem_cache *cache, void *object)
> +void __kasan_save_free_info(struct kmem_cache *cache, void *object)
>  {
>         save_stack_info(cache, object, 0, true);
>  }
> _
>