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Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linux-kernel@vger.kernel.org, Cao Ruichuang Subject: Re: [PATCH] mm/vmstat: reject invalid stat_interval values Message-ID: <202604111816.CsqTatIh-lkp@intel.com> References: <20260410112554.23165-1-create0818@163.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260410112554.23165-1-create0818@163.com> X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 4287D140002 X-Stat-Signature: 1nasub8ns3ms4zfouink1fdbdbfpkt3n X-HE-Tag: 1775905707-495987 X-HE-Meta: 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 FEn2Q6cX botGSifjjdJwxROS+2bA18IwZEB3u/zRZWV2J4/6oFIBMXdKQVw8js090W6gpsjtFRaMEUlmLnMmysUgiUdLIIKOO3evmfwB/baBGMZxGaQRxDfTyOxtu8I71qgoiidtpDAZR6RtSQ+RKBOhylVZ5kAXci1Swr+Z04v4zRQfB/KzeDlIBzP63IqVyWlDBSJHLqbAOOJo1aOrG2Dnkk7TYTn9/EdgMhbs7Iiz0dNsgpImE6F+QfoNlvayWy/dzKDgvJqgee5n+6n8M1clo4Rz8jXTP/tmPx+NmiTDTbpL9kUr/ygszAMnrCD7eqC8u8N8Lbi9LU/J0+B9LsP5JP1uIlFT0YcqDSBC0HXaGBgpa+sXwaM/J0SI1vAky42AYjZDYEOTOP5J/sSDp6EYO3Z87Vm9FIA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Cao, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Cao-Ruichuang/mm-vmstat-reject-invalid-stat_interval-values/20260411-085547 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20260410112554.23165-1-create0818%40163.com patch subject: [PATCH] mm/vmstat: reject invalid stat_interval values config: arm-randconfig-004-20260411 (https://download.01.org/0day-ci/archive/20260411/202604111816.CsqTatIh-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project ae825cb8cea7f3ac8e5e4096f22713845cf5e501) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260411/202604111816.CsqTatIh-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202604111816.CsqTatIh-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/vmstat.c:1968:18: warning: unused variable 'sysctl_stat_interval_max' [-Wunused-const-variable] 1968 | static const int sysctl_stat_interval_max = INT_MAX / HZ; | ^~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +/sysctl_stat_interval_max +1968 mm/vmstat.c 1964 1965 #ifdef CONFIG_SMP 1966 static DEFINE_PER_CPU(struct delayed_work, vmstat_work); 1967 static int sysctl_stat_interval __read_mostly = HZ; > 1968 static const int sysctl_stat_interval_max = INT_MAX / HZ; 1969 static int vmstat_late_init_done; 1970 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki