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X-CSE-ConnectionGUID: /nakB6yNRLiGQPwLLVFPMg== X-CSE-MsgGUID: kfsXZoSUQRCvkfP/soSjew== X-IronPort-AV: E=McAfee;i="6800,10657,11703"; a="72108205" X-IronPort-AV: E=Sophos;i="6.21,296,1763452800"; d="scan'208";a="72108205" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Feb 2026 04:18:43 -0800 X-CSE-ConnectionGUID: 5+Zoq9ohSqijtT9PXHlpFA== X-CSE-MsgGUID: NyOLsov8S4adFFzo9eyCoQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,296,1763452800"; d="scan'208";a="213127162" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by fmviesa008.fm.intel.com with ESMTP; 17 Feb 2026 04:18:39 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vsK2G-000000010vk-3Fth; Tue, 17 Feb 2026 12:18:36 +0000 Date: Tue, 17 Feb 2026 20:18:02 +0800 From: kernel test robot To: Youngjun Park , Andrew Morton Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Baoquan He , Barry Song , Johannes Weiner , Michal Hocko , Roman Gushchin , Shakeel Butt , Muchun Song , Michal =?iso-8859-1?Q?Koutn=FD?= , gunho.lee@lge.com, taejoon.song@lge.com, austin.kim@lge.com, youngjun.park@lge.com Subject: Re: [PATCH v4 3/4] mm: memcontrol: add interfaces for swap tier selection Message-ID: <202602172046.jWVum2TN-lkp@intel.com> References: <20260217000950.4015880-4-youngjun.park@lge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260217000950.4015880-4-youngjun.park@lge.com> X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 610B71C0008 X-Stat-Signature: act94z3jkjzaiisoz94p8qjif4ooahaj X-Rspam-User: X-HE-Tag: 1771330724-447404 X-HE-Meta: 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 Lj+gaffw dyUKdaxQpK2tw3j+BK3dGIF7dnXXgXv1dPUrtvaoEUhVCNxTNv98ZAH3p1+aHCLBXZBGJhDRVCaoIkRc4AtQvHsWGtuqnvNJb15Zdd3Z9vW3ISyrKO4UYUr00vsBmz1a2ivPVlB5/xEV3kIg9CrUvb7G1b3HsAEl42KgjxRDq0qeajeJNGFJryzjNf17SvBLF0+NAaGtXHbWta3I8SZnPvfyqaBds+Oh+gJDTmrsfH1sRRdb83Ku6M3X/ERn8Nlzrbd01kTNphthMQoBBep3dolQOFbcJjmZKzeDCKA+HDFO4StZD81W/q74sk7U93OrHoioILs1zOBXv2EHBRVRazuspDzU00FmBiI8I 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: Hi Youngjun, kernel test robot noticed the following build errors: [auto build test ERROR on 776250964cbaa49ebe6b8bb2870765cc89cece59] url: https://github.com/intel-lab-lkp/linux/commits/Youngjun-Park/mm-swap-introduce-swap-tier-infrastructure/20260217-121406 base: 776250964cbaa49ebe6b8bb2870765cc89cece59 patch link: https://lore.kernel.org/r/20260217000950.4015880-4-youngjun.park%40lge.com patch subject: [PATCH v4 3/4] mm: memcontrol: add interfaces for swap tier selection config: powerpc64-randconfig-001-20260217 (https://download.01.org/0day-ci/archive/20260217/202602172046.jWVum2TN-lkp@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260217/202602172046.jWVum2TN-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/202602172046.jWVum2TN-lkp@intel.com/ All errors (new ones prefixed by >>): mm/swap_tier.c: In function 'swap_tier_memcg_propagate': >> mm/swap_tier.c:342:8: error: dereferencing pointer to incomplete type 'struct mem_cgroup' child->tier_mask |= mask; ^~ vim +342 mm/swap_tier.c 330 331 /* 332 * When a tier is removed, set its bit in every memcg's tier_mask and 333 * tier_effective_mask. This prevents stale tier indices from being 334 * silently filtered out if the same index is reused later. 335 */ 336 static void swap_tier_memcg_propagate(int mask) 337 { 338 struct mem_cgroup *child; 339 340 rcu_read_lock(); 341 for_each_mem_cgroup_tree(child, root_mem_cgroup) { > 342 child->tier_mask |= mask; 343 child->tier_effective_mask |= mask; 344 } 345 rcu_read_unlock(); 346 } 347 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki