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 <l...@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.zijls...@chello.nl>
:::::: CC: Ingo Molnar <mi...@elte.hu>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
