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Date: Thu, 11 Jun 2020 12:20:39 +0800
From: kernel test robot <lkp@...el.com>
To: Josh Don <joshdon@...gle.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Peter Zijlstra <peterz@...radead.org>,
Phil Auld <pauld@...hat.com>
Subject: include/asm-generic/qspinlock.h:94:9: sparse: sparse: context
imbalance in 'do_sched_cfs_period_timer' - unexpected unlock
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b29482fde649c72441d5478a4ea2c52c56d97a5e
commit: ab93a4bc955b3980c699430bc0b633f0d8b607be sched/fair: Remove distribute_running from CFS bandwidth
date: 6 weeks ago
config: arm64-randconfig-s032-20200611 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-250-g42323db3-dirty
git checkout ab93a4bc955b3980c699430bc0b633f0d8b607be
# save the attached .config to linux build tree
make W=1 C=1 ARCH=arm64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
kernel/sched/fair.c:882:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_entity *se @@ got struct sched_entity [noderef] <asn:4> * @@
kernel/sched/fair.c:882:34: sparse: expected struct sched_entity *se
kernel/sched/fair.c:882:34: sparse: got struct sched_entity [noderef] <asn:4> *
kernel/sched/fair.c:4851:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/fair.c:4851:22: sparse: struct task_struct [noderef] <asn:4> *
kernel/sched/fair.c:4851:22: sparse: struct task_struct *
kernel/sched/fair.c:6533:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] <asn:4> *parent @@
kernel/sched/fair.c:6533:20: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/fair.c:6533:20: sparse: got struct sched_domain [noderef] <asn:4> *parent
kernel/sched/fair.c:6652:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] <asn:4> *parent @@
kernel/sched/fair.c:6652:9: sparse: expected struct sched_domain *[assigned] tmp
kernel/sched/fair.c:6652:9: sparse: got struct sched_domain [noderef] <asn:4> *parent
kernel/sched/fair.c:6854:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] <asn:4> *curr @@
kernel/sched/fair.c:6854:38: sparse: expected struct task_struct *curr
kernel/sched/fair.c:6854:38: sparse: got struct task_struct [noderef] <asn:4> *curr
kernel/sched/fair.c:7105:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] <asn:4> *curr @@
kernel/sched/fair.c:7105:38: sparse: expected struct task_struct *curr
kernel/sched/fair.c:7105:38: sparse: got struct task_struct [noderef] <asn:4> *curr
kernel/sched/fair.c:8063:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *child @@ got struct sched_domain [noderef] <asn:4> *child @@
kernel/sched/fair.c:8063:40: sparse: expected struct sched_domain *child
kernel/sched/fair.c:8063:40: sparse: got struct sched_domain [noderef] <asn:4> *child
kernel/sched/fair.c:8556:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/fair.c:8556:22: sparse: struct task_struct [noderef] <asn:4> *
kernel/sched/fair.c:8556:22: sparse: struct task_struct *
kernel/sched/fair.c:9800:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] <asn:4> *parent @@
kernel/sched/fair.c:9800:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/fair.c:9800:9: sparse: got struct sched_domain [noderef] <asn:4> *parent
kernel/sched/fair.c:9460:44: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *sd_parent @@ got struct sched_domain [noderef] <asn:4> *parent @@
kernel/sched/fair.c:9460:44: sparse: expected struct sched_domain *sd_parent
kernel/sched/fair.c:9460:44: sparse: got struct sched_domain [noderef] <asn:4> *parent
kernel/sched/fair.c:9879:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] <asn:4> *parent @@
kernel/sched/fair.c:9879:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/fair.c:9879:9: sparse: got struct sched_domain [noderef] <asn:4> *parent
kernel/sched/fair.c:10479:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] <asn:4> *parent @@
kernel/sched/fair.c:10479:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/fair.c:10479:9: sparse: got struct sched_domain [noderef] <asn:4> *parent
kernel/sched/fair.c:10683:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/fair.c:10683:22: sparse: struct task_struct [noderef] <asn:4> *
kernel/sched/fair.c:10683:22: sparse: struct task_struct *
kernel/sched/fair.c:10816:30: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/fair.c:10816:30: sparse: struct task_struct [noderef] <asn:4> *
kernel/sched/fair.c:10816:30: sparse: struct task_struct *
>> include/asm-generic/qspinlock.h:94:9: sparse: sparse: context imbalance in 'do_sched_cfs_period_timer' - unexpected unlock
kernel/sched/fair.c:5908:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] <asn:4> *child @@
kernel/sched/fair.c:5908:28: sparse: expected struct sched_domain *sd
kernel/sched/fair.c:5908:28: sparse: got struct sched_domain [noderef] <asn:4> *child
kernel/sched/fair.c:5914:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] <asn:4> *child @@
kernel/sched/fair.c:5914:28: sparse: expected struct sched_domain *sd
kernel/sched/fair.c:5914:28: sparse: got struct sched_domain [noderef] <asn:4> *child
kernel/sched/fair.c:5921:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] <asn:4> *child @@
kernel/sched/fair.c:5921:28: sparse: expected struct sched_domain *sd
kernel/sched/fair.c:5921:28: sparse: got struct sched_domain [noderef] <asn:4> *child
kernel/sched/fair.c:5929:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] <asn:4> *parent @@
kernel/sched/fair.c:5929:17: sparse: expected struct sched_domain *[assigned] tmp
kernel/sched/fair.c:5929:17: sparse: got struct sched_domain [noderef] <asn:4> *parent
kernel/sched/sched.h:1808:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1808:9: sparse: struct task_struct [noderef] <asn:4> *
kernel/sched/sched.h:1808:9: sparse: struct task_struct *
vim +/do_sched_cfs_period_timer +94 include/asm-generic/qspinlock.h
a33fda35e3a765 Waiman Long 2015-04-24 83
a33fda35e3a765 Waiman Long 2015-04-24 84 #ifndef queued_spin_unlock
a33fda35e3a765 Waiman Long 2015-04-24 85 /**
a33fda35e3a765 Waiman Long 2015-04-24 86 * queued_spin_unlock - release a queued spinlock
a33fda35e3a765 Waiman Long 2015-04-24 87 * @lock : Pointer to queued spinlock structure
a33fda35e3a765 Waiman Long 2015-04-24 88 */
a33fda35e3a765 Waiman Long 2015-04-24 89 static __always_inline void queued_spin_unlock(struct qspinlock *lock)
a33fda35e3a765 Waiman Long 2015-04-24 90 {
a33fda35e3a765 Waiman Long 2015-04-24 91 /*
ca50e426f96c90 Pan Xinhui 2016-06-03 92 * unlock() needs release semantics:
a33fda35e3a765 Waiman Long 2015-04-24 93 */
626e5fbc143589 Will Deacon 2018-04-26 @94 smp_store_release(&lock->locked, 0);
a33fda35e3a765 Waiman Long 2015-04-24 95 }
a33fda35e3a765 Waiman Long 2015-04-24 96 #endif
a33fda35e3a765 Waiman Long 2015-04-24 97
:::::: The code at line 94 was first introduced by commit
:::::: 626e5fbc14358901ddaa90ce510e0fbeab310432 locking/qspinlock: Use smp_store_release() in queued_spin_unlock()
:::::: TO: Will Deacon <will.deacon@....com>
:::::: CC: Ingo Molnar <mingo@...nel.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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