linux-kernel - Re: [PATCH v3 1/3] kvm: Introduce kvm_total_suspend

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Message-ID: <202501081504.AE4wDCL9-lkp@intel.com>
Date: Wed, 8 Jan 2025 15:15:30 +0800
From: kernel test robot <lkp@...el.com>
To: Suleiman Souhlal <suleiman@...gle.com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Sean Christopherson <seanjc@...gle.com>
Cc: oe-kbuild-all@...ts.linux.dev, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>, Chao Gao <chao.gao@...el.com>,
	David Woodhouse <dwmw2@...radead.org>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org, ssouhlal@...ebsd.org,
	Suleiman Souhlal <suleiman@...gle.com>
Subject: Re: [PATCH v3 1/3] kvm: Introduce kvm_total_suspend_ns().

Hi Suleiman,

kernel test robot noticed the following build warnings:

[auto build test WARNING on kvm/queue]
[also build test WARNING on kvm/next linus/master v6.13-rc6 next-20250107]
[cannot apply to kvm/linux-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/Suleiman-Souhlal/kvm-Introduce-kvm_total_suspend_ns/20250107-122819
base:   https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
patch link:    https://lore.kernel.org/r/20250107042202.2554063-2-suleiman%40google.com
patch subject: [PATCH v3 1/3] kvm: Introduce kvm_total_suspend_ns().
config: s390-randconfig-001-20250108 (https://download.01.org/0day-ci/archive/20250108/202501081504.AE4wDCL9-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250108/202501081504.AE4wDCL9-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/202501081504.AE4wDCL9-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/s390/kvm/../../../virt/kvm/kvm_main.c:897:12: warning: 'last_suspend' defined but not used [-Wunused-variable]
     897 | static u64 last_suspend;
         |            ^~~~~~~~~~~~

vim +/last_suspend +897 arch/s390/kvm/../../../virt/kvm/kvm_main.c

   896	
 > 897	static u64 last_suspend;
   898	static u64 total_suspend_ns;
   899	

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