[zen:7.2/prjc 651/740] kernel/sched/alt_sched.h:334:25: sparse: sparse: incompatible types in comparison expression (different address spaces):

[zen:7.2/prjc 651/740] kernel/sched/alt_sched.h:334:25: sparse: sparse: incompatible types in comparison expression (different address spaces):

[kernel test robot]

tree:   https://github.com/zen-kernel/zen-kernel 7.2/prjc
head:   b735d8ec47d31db8e62d1925521a44d98c1cac2d
commit: add9dba34cde0a2265b292326f8318bf0fd733ef [651/740] sched/alt: [Sync] 6199f9999a9b sched/cputime: Handle dyntick-idle steal time correctly
config: m68k-randconfig-r122-20260819 (https://download.01.org/0day-ci/archive/20260819/202608191732.ytq7bc3P-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 13.4.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260819/202608191732.ytq7bc3P-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202608191732.ytq7bc3P-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   kernel/sched/build_policy.c: note: in included file (through kernel/sched/sched.h):
>> kernel/sched/alt_sched.h:334:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_sched.h:334:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_sched.h:334:25: sparse:    struct task_struct *

vim +334 kernel/sched/alt_sched.h

2f7ec82370cbb7 Alfred Chen 2019-08-19  331  
e6d6a4e78f98f6 Alfred Chen 2026-01-19  332  static inline bool idle_rq(struct rq *rq)
e6d6a4e78f98f6 Alfred Chen 2026-01-19  333  {
e6d6a4e78f98f6 Alfred Chen 2026-01-19 @334  	return rq->curr == rq->idle && !rq->nr_running && !rq->ttwu_pending;
e6d6a4e78f98f6 Alfred Chen 2026-01-19  335  }
e6d6a4e78f98f6 Alfred Chen 2026-01-19  336  

:::::: The code at line 334 was first introduced by commit
:::::: e6d6a4e78f98f667774453eb1b15379f06183e1f sched/alt: [Sync] 1e0a2ba7afb1 sched: Provide idle_rq() helper

:::::: TO: Alfred Chen <cchalpha@gmail.com>
:::::: CC: Alfred Chen <cchalpha@gmail.com>

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https://github.com/intel/lkp-tests/wiki