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X-IronPort-AV: E=McAfee;i="6600,9927,10742"; a="445500536" X-IronPort-AV: E=Sophos;i="6.00,246,1681196400"; d="scan'208";a="445500536" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Jun 2023 22:14:12 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10742"; a="825587165" X-IronPort-AV: E=Sophos;i="6.00,246,1681196400"; d="scan'208";a="825587165" Received: from lkp-server01.sh.intel.com (HELO 783282924a45) ([10.239.97.150]) by fmsmga002.fm.intel.com with ESMTP; 15 Jun 2023 22:14:09 -0700 Received: from kbuild by 783282924a45 with local (Exim 4.96) (envelope-from ) id 1qA1mi-0000po-1k; Fri, 16 Jun 2023 05:14:08 +0000 Date: Fri, 16 Jun 2023 13:13:57 +0800 From: kernel test robot To: Peng Zhang , linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, hannes@cmpxchg.org, mhocko@kernel.org, roman.gushchin@linux.dev, shakeelb@google.com, muchun.song@linux.dev, akpm@linux-foundation.org, wangkefeng.wang@huawei.com, sunnanyong@huawei.com, ZhangPeng Subject: Re: [PATCH] mm/memcg: remove return value of mem_cgroup_scan_tasks() Message-ID: <202306161306.9YKbncNT-lkp@intel.com> References: <20230616021955.872413-1-zhangpeng362@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230616021955.872413-1-zhangpeng362@huawei.com> X-Rspamd-Queue-Id: 4FDF81C0006 X-Rspam-User: X-Stat-Signature: iyyy9bzg3da6oxn6i9nbykus8ordaww9 X-Rspamd-Server: rspam01 X-HE-Tag: 1686892454-787100 X-HE-Meta: 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 ZPkRMdnn dvQOzsvFMFme690AAVQ9nJS5dZo1r+Ayai3Qr7bJEjPFfOxVvYoMFpe1jZL9IwGuDYSsp6T/A4wylK5DdoYVj1Yzf/2Wg6UPI7zy79sLKgSeXunMwsaA30uuVVyiGOSPqvPvmrj2yn5EVF8OVexSRfPTIVxi1c1Pcml5lQ5KCQEGmfQb5r3FCnI94LwaUmvlNRYOGcj+BxJSPO7oBHX81hdvKX8gPlQUZKC9bDtUAumGdPL8Fk3OATQ/PBn8Ly51E08UCNsrGF7DWlFrLGiooSgP2KAno4QJqHd87YFQzrtaKmcUdkxO157t64JQGGuVVsFD3jHXxmEj/34e1SmNZOEiYv81a3ZePRxfbIlsDZ/sVguKz6fCY09Am9FGnSp4uBTJZ75QbSjZbITi5g0TuZzigSE4dra0xX9IXLoKP9NAHaYzABO6OATuqKw== 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: Hi Peng, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Peng-Zhang/mm-memcg-remove-return-value-of-mem_cgroup_scan_tasks/20230616-102145 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230616021955.872413-1-zhangpeng362%40huawei.com patch subject: [PATCH] mm/memcg: remove return value of mem_cgroup_scan_tasks() config: x86_64-randconfig-r005-20230616 (https://download.01.org/0day-ci/archive/20230616/202306161306.9YKbncNT-lkp@intel.com/config) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git git fetch akpm-mm mm-everything git checkout akpm-mm/mm-everything b4 shazam https://lore.kernel.org/r/20230616021955.872413-1-zhangpeng362@huawei.com # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=x86_64 prepare 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/202306161306.9YKbncNT-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from arch/x86/kernel/asm-offsets.c:14: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: >> include/linux/memcontrol.h:1370:2: error: void function 'mem_cgroup_scan_tasks' should not return a value [-Wreturn-type] return 0; ^ ~ 1 error generated. make[2]: *** [scripts/Makefile.build:114: arch/x86/kernel/asm-offsets.s] Error 1 shuffle=3878817758 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:1287: prepare0] Error 2 shuffle=3878817758 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:226: __sub-make] Error 2 shuffle=3878817758 make: Target 'prepare' not remade because of errors. vim +/mem_cgroup_scan_tasks +1370 include/linux/memcontrol.h 5660048ccac873 Johannes Weiner 2012-01-12 1366 5044a2e0ddbf82 ZhangPeng 2023-06-16 1367 static inline void mem_cgroup_scan_tasks(struct mem_cgroup *memcg, 7c5f64f84483bd Vladimir Davydov 2016-10-07 1368 int (*fn)(struct task_struct *, void *), void *arg) 7c5f64f84483bd Vladimir Davydov 2016-10-07 1369 { 7c5f64f84483bd Vladimir Davydov 2016-10-07 @1370 return 0; 7c5f64f84483bd Vladimir Davydov 2016-10-07 1371 } 7c5f64f84483bd Vladimir Davydov 2016-10-07 1372 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki