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

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Message-ID: <202504301156.5DA54A7@keescook>
Date: Wed, 30 Apr 2025 11:56:41 -0700
From: Kees Cook <kees@...nel.org>
To: kernel test robot <lkp@...el.com>
Cc: Arnd Bergmann <arnd@...db.de>, llvm@...ts.linux.dev,
	oe-kbuild-all@...ts.linux.dev, 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

On Sun, Apr 27, 2025 at 11:47:19AM +0800, kernel test robot wrote:
> 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: riscv-randconfig-001-20250427 (https://download.01.org/0day-ci/archive/20250427/202504271150.Be642Srg-lkp@intel.com/config)
> compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250427/202504271150.Be642Srg-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/202504271150.Be642Srg-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
> >> lib/tests/randstruct_kunit.c:36:36: warning: '_Static_assert' with no message is a C23 extension [-Wc23-extensions]
>       36 | _Static_assert(MEMBER_NAME_MAX == 8);
>          |                                    ^
>          |                                    , ""
>    1 warning generated.

Thanks! I've fixed this locally.

-- 
Kees Cook