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X-IronPort-AV: E=McAfee;i="6500,9779,10452"; a="281635377" X-IronPort-AV: E=Sophos;i="5.93,267,1654585200"; d="scan'208";a="281635377" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2022 07:33:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,267,1654585200"; d="scan'208";a="753166219" Received: from lkp-server01.sh.intel.com (HELO fc16deae1c42) ([10.239.97.150]) by fmsmga001.fm.intel.com with ESMTP; 27 Aug 2022 07:33:56 -0700 Received: from kbuild by fc16deae1c42 with local (Exim 4.96) (envelope-from ) id 1oRwsm-0000E3-0M; Sat, 27 Aug 2022 14:33:56 +0000 Date: Sat, 27 Aug 2022 22:33:05 +0800 From: kernel test robot To: Michal =?iso-8859-1?Q?Koutn=FD?= Cc: kbuild-all@lists.01.org, Ammar Faizi , GNU/Weeb Mailing List , linux-kernel@vger.kernel.org, Tejun Heo Subject: [ammarfaizi2-block:tj/cgroup/for-6.1 4/6] mm/memcontrol.c:5114:31: sparse: sparse: incorrect type in return expression (different base types) Message-ID: <202208272208.Gxm0hb5p-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline List-Id: tree: https://github.com/ammarfaizi2/linux-block tj/cgroup/for-6.1 head: 075b593f54f0f3883532cb750081cae6917bc8fe commit: fa7e439cf90ba23ea473d0b7d85efd02ae6ccf94 [4/6] cgroup: Homogenize cgroup_get_from_id() return value config: s390-randconfig-s041-20220827 (https://download.01.org/0day-ci/archive/20220827/202208272208.Gxm0hb5p-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/ammarfaizi2/linux-block/commit/fa7e439cf90ba23ea473d0b7d85efd02ae6ccf94 git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block tj/cgroup/for-6.1 git checkout fa7e439cf90ba23ea473d0b7d85efd02ae6ccf94 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) mm/memcontrol.c:4116:21: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:4116:21: sparse: struct mem_cgroup_threshold_ary [noderef] __rcu * mm/memcontrol.c:4116:21: sparse: struct mem_cgroup_threshold_ary * mm/memcontrol.c:4118:21: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:4118:21: sparse: struct mem_cgroup_threshold_ary [noderef] __rcu * mm/memcontrol.c:4118:21: sparse: struct mem_cgroup_threshold_ary * mm/memcontrol.c:4274:9: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:4274:9: sparse: struct mem_cgroup_threshold_ary [noderef] __rcu * mm/memcontrol.c:4274:9: sparse: struct mem_cgroup_threshold_ary * mm/memcontrol.c:4368:9: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:4368:9: sparse: struct mem_cgroup_threshold_ary [noderef] __rcu * mm/memcontrol.c:4368:9: sparse: struct mem_cgroup_threshold_ary * >> mm/memcontrol.c:5114:31: sparse: sparse: incorrect type in return expression (different base types) @@ expected struct mem_cgroup * @@ got long @@ mm/memcontrol.c:5998:23: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:5998:23: sparse: struct task_struct [noderef] __rcu * mm/memcontrol.c:5998:23: sparse: struct task_struct * mm/memcontrol.c: note: in included file: include/linux/memcontrol.h:754:9: sparse: sparse: context imbalance in 'folio_lruvec_lock' - wrong count at exit include/linux/memcontrol.h:754:9: sparse: sparse: context imbalance in 'folio_lruvec_lock_irq' - wrong count at exit include/linux/memcontrol.h:754:9: sparse: sparse: context imbalance in 'folio_lruvec_lock_irqsave' - wrong count at exit mm/memcontrol.c:2034:6: sparse: sparse: context imbalance in 'folio_memcg_lock' - wrong count at exit mm/memcontrol.c:2086:17: sparse: sparse: context imbalance in '__folio_memcg_unlock' - unexpected unlock vim +5114 mm/memcontrol.c 5104 5105 #ifdef CONFIG_SHRINKER_DEBUG 5106 struct mem_cgroup *mem_cgroup_get_from_ino(unsigned long ino) 5107 { 5108 struct cgroup *cgrp; 5109 struct cgroup_subsys_state *css; 5110 struct mem_cgroup *memcg; 5111 5112 cgrp = cgroup_get_from_id(ino); 5113 if (IS_ERR(cgrp)) > 5114 return PTR_ERR(cgrp); 5115 5116 css = cgroup_get_e_css(cgrp, &memory_cgrp_subsys); 5117 if (css) 5118 memcg = container_of(css, struct mem_cgroup, css); 5119 else 5120 memcg = ERR_PTR(-ENOENT); 5121 5122 cgroup_put(cgrp); 5123 5124 return memcg; 5125 } 5126 #endif 5127 -- 0-DAY CI Kernel Test Service https://01.org/lkp