linux-kernel - Re: [PATCH v2 3/3] bitmap: break kunit into test cases

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <202512232124.O36Ud5C2-lkp@intel.com>
Date: Tue, 23 Dec 2025 21:22:27 +0800
From: kernel test robot <lkp@...el.com>
To: Tamir Duberstein <tamird@...nel.org>, David Gow <davidgow@...gle.com>,
	John Hubbard <jhubbard@...dia.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	Naveen N Rao <naveen@...nel.org>, Yury Norov <yury.norov@...il.com>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Shuah Khan <skhan@...uxfoundation.org>, Kees Cook <kees@...nel.org>,
	Christophe Leroy <chleroy@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev,
	Linux Memory Management List <linux-mm@...ck.org>,
	Muhammad Usama Anjum <usama.anjum@...labora.com>,
	linux-kernel@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
	linuxppc-dev@...ts.ozlabs.org, linux-kselftest@...r.kernel.org,
	Tamir Duberstein <tamird@...il.com>
Subject: Re: [PATCH v2 3/3] bitmap: break kunit into test cases

Hi Tamir,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 8f0b4cce4481fb22653697cced8d0d04027cb1e8]

url:    https://github.com/intel-lab-lkp/linux/commits/Tamir-Duberstein/test_bitmap-extract-benchmark-module/20251222-214306
base:   8f0b4cce4481fb22653697cced8d0d04027cb1e8
patch link:    https://lore.kernel.org/r/20251222-bitmap-kunit-convert-v2-3-6a61a5330eff%40gmail.com
patch subject: [PATCH v2 3/3] bitmap: break kunit into test cases
config: sparc-randconfig-001-20251223 (https://download.01.org/0day-ci/archive/20251223/202512232124.O36Ud5C2-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512232124.O36Ud5C2-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512232124.O36Ud5C2-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/string.h:65,
                    from include/linux/bitmap.h:13,
                    from include/linux/cpumask.h:11,
                    from include/linux/smp.h:13,
                    from include/linux/lockdep.h:14,
                    from include/linux/spinlock.h:63,
                    from include/linux/kref.h:16,
                    from include/kunit/test.h:22,
                    from lib/bitmap_kunit.c:6:
   lib/bitmap_kunit.c: In function 'test_bitmap_printlist':
>> arch/sparc/include/asm/string.h:18:29: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size]
      18 | #define memset(s, c, count) __builtin_memset(s, c, count)
         |                             ^~~~~~~~~~~~~~~~
   lib/bitmap_kunit.c:468:9: note: in expansion of macro 'memset'
     468 |         memset(bmap, -1, PAGE_SIZE);
         |         ^~~~~~


vim +/memset +18 arch/sparc/include/asm/string.h

70a6fcf3283a0a Al Viro 2016-01-17  16  
70a6fcf3283a0a Al Viro 2016-01-17  17  #define __HAVE_ARCH_MEMSET
70a6fcf3283a0a Al Viro 2016-01-17 @18  #define memset(s, c, count) __builtin_memset(s, c, count)
70a6fcf3283a0a Al Viro 2016-01-17  19  

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