From: kernel test robot <lkp@intel.com>
To: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
Ingo Molnar <mingo@kernel.org>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>
Subject: kernel/livepatch/../sched/sched.h:1619:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
Date: Sun, 29 Nov 2020 02:14:15 +0800 [thread overview]
Message-ID: <202011290211.VQEqAhn6-lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c84e1efae022071a4fcf9f1899bf71777c49943a
commit: 4104a562e0ca62e971089db9d3c47794a0d7d4eb sched/core: Annotate curr pointer in rq with __rcu
date: 10 months ago
config: x86_64-randconfig-s031-20201129 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-151-g540c2c4b-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4104a562e0ca62e971089db9d3c47794a0d7d4eb
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4104a562e0ca62e971089db9d3c47794a0d7d4eb
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
"sparse warnings: (new ones prefixed by >>)"
kernel/livepatch/transition.c: note: in included file:
>> kernel/livepatch/../sched/sched.h:1619:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/livepatch/../sched/sched.h:1619:25: sparse: struct task_struct [noderef] <asn:4> *
>> kernel/livepatch/../sched/sched.h:1619:25: sparse: struct task_struct *
vim +1619 kernel/livepatch/../sched/sched.h
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 1616
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 1617 static inline int task_current(struct rq *rq, struct task_struct *p)
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 1618 {
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 @1619 return rq->curr == p;
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 1620 }
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 1621
:::::: The code at line 1619 was first introduced by commit
:::::: 029632fbb7b7c9d85063cc9eb470de6c54873df3 sched: Make separate sched*.c translation units
:::::: TO: Peter Zijlstra <a.p.zijlstra@chello.nl>
:::::: CC: Ingo Molnar <mingo@elte.hu>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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WARNING: multiple messages have this Message-ID (diff)
From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: kernel/livepatch/../sched/sched.h:1619:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
Date: Sun, 29 Nov 2020 02:14:15 +0800 [thread overview]
Message-ID: <202011290211.VQEqAhn6-lkp@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 2367 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c84e1efae022071a4fcf9f1899bf71777c49943a
commit: 4104a562e0ca62e971089db9d3c47794a0d7d4eb sched/core: Annotate curr pointer in rq with __rcu
date: 10 months ago
config: x86_64-randconfig-s031-20201129 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-151-g540c2c4b-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4104a562e0ca62e971089db9d3c47794a0d7d4eb
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4104a562e0ca62e971089db9d3c47794a0d7d4eb
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
"sparse warnings: (new ones prefixed by >>)"
kernel/livepatch/transition.c: note: in included file:
>> kernel/livepatch/../sched/sched.h:1619:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/livepatch/../sched/sched.h:1619:25: sparse: struct task_struct [noderef] <asn:4> *
>> kernel/livepatch/../sched/sched.h:1619:25: sparse: struct task_struct *
vim +1619 kernel/livepatch/../sched/sched.h
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 1616
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 1617 static inline int task_current(struct rq *rq, struct task_struct *p)
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 1618 {
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 @1619 return rq->curr == p;
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 1620 }
029632fbb7b7c9 kernel/sched.h Peter Zijlstra 2011-10-25 1621
:::::: The code at line 1619 was first introduced by commit
:::::: 029632fbb7b7c9d85063cc9eb470de6c54873df3 sched: Make separate sched*.c translation units
:::::: TO: Peter Zijlstra <a.p.zijlstra@chello.nl>
:::::: CC: Ingo Molnar <mingo@elte.hu>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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next reply other threads:[~2020-11-28 22:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-28 18:14 kernel test robot [this message]
2020-11-28 18:14 ` kernel/livepatch/../sched/sched.h:1619:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel test robot
-- strict thread matches above, loose matches on Subject: below --
2021-01-15 7:45 kernel test robot
2021-01-15 7:45 ` kernel test robot
2020-08-04 20:03 kernel test robot
2020-08-04 20:03 ` kernel test robot
2020-05-24 0:54 kbuild test robot
2020-05-24 0:54 ` kbuild test robot
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