* [mmotm:master 117/327] kernel/cgroup/cgroup.c:3528:13: sparse: error: incompatible types in comparison expression (different address spaces)
@ 2019-02-07 14:55 kbuild test robot
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From: kbuild test robot @ 2019-02-07 14:55 UTC (permalink / raw)
To: Suren Baghdasaryan
Cc: kbuild-all, Johannes Weiner, Andrew Morton, Linux Memory Management List
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tree: git://git.cmpxchg.org/linux-mmotm.git master
head: 79d7b443931d1eff3b746a2956a6abf9cb5d85cc
commit: 52c6636ad0584ccff2e166dee62d55a6dacbb76f [117/327] psi: introduce psi monitor
reproduce:
# apt-get install sparse
git checkout 52c6636ad0584ccff2e166dee62d55a6dacbb76f
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
Note: the mmotm/master HEAD 79d7b443931d1eff3b746a2956a6abf9cb5d85cc builds fine.
It only hurts bisectibility.
All errors (new ones prefixed by >>):
>> kernel/cgroup/cgroup.c:3528:13: sparse: error: incompatible types in comparison expression (different address spaces)
kernel/cgroup/cgroup.c:2684:20: sparse: warning: context imbalance in 'cgroup_procs_write_start' - wrong count at exit
kernel/cgroup/cgroup.c:2740:9: sparse: warning: context imbalance in 'cgroup_procs_write_finish' - wrong count at exit
kernel/cgroup/cgroup.c:2851:9: sparse: warning: context imbalance in 'cgroup_lock_and_drain_offline' - wrong count at exit
kernel/cgroup/cgroup.c:4552:16: sparse: warning: context imbalance in 'cgroup_procs_write' - wrong count at exit
kernel/cgroup/cgroup.c:4593:16: sparse: warning: context imbalance in 'cgroup_threads_write' - wrong count at exit
vim +3528 kernel/cgroup/cgroup.c
3520
3521 static __poll_t cgroup_pressure_poll(struct kernfs_open_file *of,
3522 poll_table *pt)
3523 {
3524 struct psi_trigger *t;
3525 __poll_t ret;
3526
3527 rcu_read_lock();
> 3528 t = rcu_dereference(of->priv);
3529 if (t)
3530 ret = psi_trigger_poll(t, of->file, pt);
3531 else
3532 ret = DEFAULT_POLLMASK | EPOLLERR | EPOLLPRI;
3533 rcu_read_unlock();
3534
3535 return ret;
3536 }
3537
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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