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Received: from 192.168.0.106(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0W7do2aW_1717301742) by smtp.aliyun-inc.com; Sun, 02 Jun 2024 12:16:49 +0800 Message-ID: <515fba2a-342e-4d8b-85c2-a89038a0c4e0@linux.alibaba.com> Date: Sun, 2 Jun 2024 12:16:48 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 4/6] mm: shmem: add mTHP support for anonymous shmem To: kernel test robot , akpm@linux-foundation.org, hughd@google.com Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, willy@infradead.org, david@redhat.com, wangkefeng.wang@huawei.com, ying.huang@intel.com, 21cnbao@gmail.com, ryan.roberts@arm.com, shy828301@gmail.com, ziy@nvidia.com, ioworker0@gmail.com, da.gomez@samsung.com, p.raghav@samsung.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <202405301430.0NRLTOWU-lkp@intel.com> From: Baolin Wang In-Reply-To: <202405301430.0NRLTOWU-lkp@intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 74616180004 X-Rspam-User: X-Stat-Signature: p1ns583sfbupi1d3xs9bjarra7szei7g X-HE-Tag: 1717301813-807972 X-HE-Meta: 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 V3PSUeG5 YkPbe25Jhu+z/KgOAoDbkFPLK/u+hPw+L4t8Ks1XyTr/6jKk4kXL4H2EDn7gVC7YNwdGtt+EIGiPaXy1/ae67ychqbXI1C2rUo+gyiyVBq1vUDUUShgv/VBEQeH+JlaXgMJqWAyYGFP4VFFxcfx3AmKAEb2Yiohxr3tRQxOGwGs1oIBQycpfg1GgQj9ag7pPu/dr6WP2DSuf/DEgmIQKDdhe42Y5wi3B9j6o5hKLzkw5KbvcgN/DLcNM2J+P8KAjvzvhx17IQm3iZRF287D9TawR5TdqnZhAO+vMXCd9kClEakUayldbNmD0vDF2HuXv/8KSoS6sv7vsEQjCPlS1x9cmqHEVUM9ykmLXgaLCMcQLLxrf9FcZxmtmiqjMiTMeYTeYfnP6N56tjq+3FWFw+sDQVQATsz4WV4S+Hozc5ckfS5+EXP/DmwFTCshLxcVCcckvLK7adyzbLYAOwRY/1ZVMIpz//KS72475pKqYxWC+yHdoc32zzQjzmxTgZqqc0g+3t X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 2024/5/30 14:36, kernel test robot wrote: > Hi Baolin, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on akpm-mm/mm-everything] > [also build test WARNING on next-20240529] > [cannot apply to linus/master v6.10-rc1] > [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/Baolin-Wang/mm-memory-extend-finish_fault-to-support-large-folio/20240530-100805 > base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything > patch link: https://lore.kernel.org/r/ec35a23026dd016705d211e85163cabe07681516.1717033868.git.baolin.wang%40linux.alibaba.com > patch subject: [PATCH v3 4/6] mm: shmem: add mTHP support for anonymous shmem > config: riscv-defconfig (https://download.01.org/0day-ci/archive/20240530/202405301430.0NRLTOWU-lkp@intel.com/config) > compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project bafda89a0944d947fc4b3b5663185e07a397ac30) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240530/202405301430.0NRLTOWU-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/202405301430.0NRLTOWU-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > In file included from mm/shmem.c:28: > In file included from include/linux/ramfs.h:5: > In file included from include/linux/fs_parser.h:11: > In file included from include/linux/fs_context.h:14: > In file included from include/linux/security.h:33: > In file included from include/linux/mm.h:2245: > include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] > 514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" > | ~~~~~~~~~~~ ^ ~~~ >>> mm/shmem.c:1748:14: warning: variable 'suitable_orders' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] > 1748 | } else if (orders & BIT(HPAGE_PMD_ORDER)) { > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > mm/shmem.c:1766:25: note: uninitialized use occurs here > 1766 | order = highest_order(suitable_orders); > | ^~~~~~~~~~~~~~~ > mm/shmem.c:1748:10: note: remove the 'if' if its condition is always true > 1748 | } else if (orders & BIT(HPAGE_PMD_ORDER)) { > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > mm/shmem.c:1736:31: note: initialize the variable 'suitable_orders' to silence this warning > 1736 | unsigned long suitable_orders; > | ^ > | = 0 > 2 warnings generated. Thanks for reporting. Will fix the warning in next version.