Re: [PATCH v1 1/2] kasan: Unpoison pcpu chunks with base address tag

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

Hi Maciej,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on linus/master v6.18-rc4 next-20251104]
[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/Maciej-Wieczor-Retman/kasan-Unpoison-pcpu-chunks-with-base-address-tag/20251104-225204
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/821677dd824d003cc5b7a77891db4723e23518ea.1762267022.git.m.wieczorretman%40pm.me
patch subject: [PATCH v1 1/2] kasan: Unpoison pcpu chunks with base address tag
config: x86_64-buildonly-randconfig-003-20251105 (https://download.01.org/0day-ci/archive/20251105/202511051219.fmeaqcaq-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251105/202511051219.fmeaqcaq-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/202511051219.fmeaqcaq-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/kasan/common.c:584:6: warning: no previous prototype for '__kasan_unpoison_vmap_areas' [-Wmissing-prototypes]
     584 | void __kasan_unpoison_vmap_areas(struct vm_struct **vms, int nr_vms)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/__kasan_unpoison_vmap_areas +584 mm/kasan/common.c

   583	
 > 584	void __kasan_unpoison_vmap_areas(struct vm_struct **vms, int nr_vms)

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