From: kernel test robot <[email protected]>
To: "Michal Koutný" <[email protected]>
Cc: [email protected], Ammar Faizi <[email protected]>,
GNU/Weeb Mailing List <[email protected]>,
[email protected], Tejun Heo <[email protected]>
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)
Date: Sat, 27 Aug 2022 22:33:05 +0800 [thread overview]
Message-ID: <[email protected]> (raw)
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/[email protected]/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 <[email protected]>
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
reply other threads:[~2022-08-27 14:33 UTC|newest]
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