linux-kernel - Re: [PATCH v2 13/35] x86/bugs: Restructure spectre_v2

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Message-ID: <202411070218.ge5HHTv1-lkp@intel.com>
Date: Thu, 7 Nov 2024 02:56:31 +0800
From: kernel test robot <lkp@...el.com>
To: David Kaplan <david.kaplan@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Borislav Petkov <bp@...en8.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Josh Poimboeuf <jpoimboe@...nel.org>,
	Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>,
	Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	"H . Peter Anvin" <hpa@...or.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 13/35] x86/bugs: Restructure spectre_v2_user mitigation

Hi David,

kernel test robot noticed the following build warnings:

[auto build test WARNING on tip/master]
[also build test WARNING on linus/master v6.12-rc6 next-20241106]
[cannot apply to tip/smp/core tip/x86/core tip/auto-latest]
[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/David-Kaplan/x86-bugs-Add-X86_BUG_SPECTRE_V2_USER/20241106-060512
base:   tip/master
patch link:    https://lore.kernel.org/r/20241105215455.359471-14-david.kaplan%40amd.com
patch subject: [PATCH v2 13/35] x86/bugs: Restructure spectre_v2_user mitigation
config: x86_64-randconfig-121-20241106 (https://download.01.org/0day-ci/archive/20241107/202411070218.ge5HHTv1-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241107/202411070218.ge5HHTv1-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/202411070218.ge5HHTv1-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> arch/x86/kernel/cpu/bugs.c:1337:32: sparse: sparse: symbol 'spectre_v2_cmd' was not declared. Should it be static?

vim +/spectre_v2_cmd +1337 arch/x86/kernel/cpu/bugs.c

  1336	
> 1337	enum spectre_v2_mitigation_cmd spectre_v2_cmd __ro_after_init = SPECTRE_V2_CMD_AUTO;
  1338	

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