Messages in this thread |  | | Date | Sun, 29 Nov 2020 02:14:15 +0800 | From | kernel test robot <> | Subject | kernel/livepatch/../sched/sched.h:1619:25: sparse: sparse: incompatible types in comparison expression (different address spaces): |
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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>
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