linux-kernel - Re: [PATCH 2/3] lib/tests: Add randstruct KUnit test

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: <202504271552.T3fbs0XC-lkp@intel.com>
Date: Sun, 27 Apr 2025 14:04:51 +0800
From: kernel test robot <lkp@...el.com>
To: Kees Cook <kees@...nel.org>, Arnd Bergmann <arnd@...db.de>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Kees Cook <kees@...nel.org>, Bill Wendling <morbo@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Memory Management List <linux-mm@...ck.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
	Justin Stitt <justinstitt@...gle.com>,
	Petr Mladek <pmladek@...e.com>, David Gow <davidgow@...gle.com>,
	Rae Moar <rmoar@...gle.com>, Tamir Duberstein <tamird@...il.com>,
	Diego Vieira <diego.daniel.professional@...il.com>,
	Luis Chamberlain <mcgrof@...nel.org>,
	"Dr. David Alan Gilbert" <linux@...blig.org>,
	Mark Brown <broonie@...nel.org>, WangYuli <wangyuli@...ontech.com>,
	Mickaël Salaün <mic@...ikod.net>,
	Günther Noack <gnoack@...gle.com>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	Paul Moore <paul@...l-moore.com>, James Morris <jmorris@...ei.org>,
	"Serge E. Hallyn" <serge@...lyn.com>, linux-kernel@...r.kernel.org,
	linux-hardening@...r.kernel.org,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH 2/3] lib/tests: Add randstruct KUnit test

Hi Kees,

kernel test robot noticed the following build warnings:

[auto build test WARNING on kees/for-next/hardening]
[also build test WARNING on linus/master v6.15-rc3 next-20250424]
[cannot apply to akpm-mm/mm-nonmm-unstable soc/for-next]
[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/Kees-Cook/randstruct-gcc-plugin-Remove-bogus-void-member/20250427-093946
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
patch link:    https://lore.kernel.org/r/20250427013836.877214-2-kees%40kernel.org
patch subject: [PATCH 2/3] lib/tests: Add randstruct KUnit test
config: powerpc64-randconfig-002-20250427 (https://download.01.org/0day-ci/archive/20250427/202504271552.T3fbs0XC-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250427/202504271552.T3fbs0XC-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/202504271552.T3fbs0XC-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> lib/tests/randstruct_kunit.c:36:36: warning: '_Static_assert' with no message is a C2x extension [-Wc2x-extensions]
      36 | _Static_assert(MEMBER_NAME_MAX == 8);
         |                                    ^
         |                                    , ""
   1 warning generated.


vim +/_Static_assert +36 lib/tests/randstruct_kunit.c

    19	
    20	#define DO_MANY_MEMBERS(macro, args...)	\
    21		macro(a, args)			\
    22		macro(b, args)			\
    23		macro(c, args)			\
    24		macro(d, args)			\
    25		macro(e, args)			\
    26		macro(f, args)			\
    27		macro(g, args)			\
    28		macro(h, args)
    29	
    30	#define do_enum(x, ignored)	MEMBER_NAME_ ## x,
    31	enum randstruct_member_names {
    32		DO_MANY_MEMBERS(do_enum)
    33		MEMBER_NAME_MAX,
    34	};
    35	/* Make sure the macros are working: want 8 test members. */
  > 36	_Static_assert(MEMBER_NAME_MAX == 8);
    37	

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