linux-kernel - Re: [PATCH v2 1/2] x86, KVM:SVM: Move sev specific parsing into arch/x86/virt/svm

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Message-ID: <202409031656.SS8NsjIN-lkp@intel.com>
Date: Tue, 3 Sep 2024 16:44:05 +0800
From: kernel test robot <lkp@...el.com>
To: Pavan Kumar Paluri <papaluri@....com>, linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, linux-doc@...r.kernel.org,
	Borislav Petkov <bp@...en8.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Eric Van Tassell <Eric.VanTassell@....com>,
	Tom Lendacky <thomas.lendacky@....com>,
	Ashish Kalra <ashish.kalra@....com>,
	Michael Roth <michael.roth@....com>,
	"H . Peter Anvin" <hpa@...or.com>,
	Pavan Kumar Paluri <papaluri@....com>
Subject: Re: [PATCH v2 1/2] x86, KVM:SVM: Move sev specific parsing into
 arch/x86/virt/svm

Hi Pavan,

kernel test robot noticed the following build warnings:

[auto build test WARNING on a85536e1bce722cb184abbac98068217874bdd6e]

url:    https://github.com/intel-lab-lkp/linux/commits/Pavan-Kumar-Paluri/x86-KVM-SVM-Move-sev-specific-parsing-into-arch-x86-virt-svm/20240903-083803
base:   a85536e1bce722cb184abbac98068217874bdd6e
patch link:    https://lore.kernel.org/r/20240903003511.1530454-2-papaluri%40amd.com
patch subject: [PATCH v2 1/2] x86, KVM:SVM: Move sev specific parsing into arch/x86/virt/svm
config: i386-buildonly-randconfig-001-20240903 (https://download.01.org/0day-ci/archive/20240903/202409031656.SS8NsjIN-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/20240903/202409031656.SS8NsjIN-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/202409031656.SS8NsjIN-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/x86/include/asm/sev.h:16,
                    from arch/x86/virt/svm/cmdline.c:13:
>> arch/x86/include/asm/coco.h:28:18: warning: 'cc_mask' defined but not used [-Wunused-const-variable=]
      28 | static const u64 cc_mask = 0;
         |                  ^~~~~~~


vim +/cc_mask +28 arch/x86/include/asm/coco.h

1c811d403afd73 Ard Biesheuvel     2024-02-03  22  
b577f542f93cbb Kirill A. Shutemov 2022-02-22  23  u64 cc_mkenc(u64 val);
b577f542f93cbb Kirill A. Shutemov 2022-02-22  24  u64 cc_mkdec(u64 val);
99485c4c026f02 Jason A. Donenfeld 2024-03-26  25  void cc_random_init(void);
b577f542f93cbb Kirill A. Shutemov 2022-02-22  26  #else
e4596477100706 Nathan Chancellor  2024-02-02  27  #define cc_vendor (CC_VENDOR_NONE)
a0a8d15a798be4 Kirill A. Shutemov 2024-04-24 @28  static const u64 cc_mask = 0;
e4596477100706 Nathan Chancellor  2024-02-02  29  

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