[zen:7.1/prjc 623/670] kernel/sched/alt_sched.h:331:25: sparse: sparse: incompatible types in comparison expression (different address spaces):

[zen:7.1/prjc 623/670] kernel/sched/alt_sched.h:331:25: sparse: sparse: incompatible types in comparison expression (different address spaces):

[kernel test robot]

tree:   https://github.com/zen-kernel/zen-kernel 7.1/prjc
head:   bb2b8160912c2185b974596c31e727ae49edf0d4
commit: 6693d2de0c4e914f04ef3ec1868c3b6ababa2acf [623/670] sched/alt: [Sync] d658686a1331 sched/deadline: Fix missing ENQUEUE_REPLENISH during PI de-boosting
config: openrisc-randconfig-r131-20260628 (https://download.01.org/0day-ci/archive/20260628/202606281945.s2tz4C14-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 11.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260628/202606281945.s2tz4C14-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/202606281945.s2tz4C14-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:331:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_sched.h:331:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_sched.h:331:25: sparse:    struct task_struct *

vim +331 kernel/sched/alt_sched.h

628c9dd0f141e0 Alfred Chen 2019-08-19  328  
82871d0e9da64f Alfred Chen 2026-01-19  329  static inline bool idle_rq(struct rq *rq)
82871d0e9da64f Alfred Chen 2026-01-19  330  {
82871d0e9da64f Alfred Chen 2026-01-19 @331  	return rq->curr == rq->idle && !rq->nr_running && !rq->ttwu_pending;
82871d0e9da64f Alfred Chen 2026-01-19  332  }
82871d0e9da64f Alfred Chen 2026-01-19  333  

:::::: The code at line 331 was first introduced by commit
:::::: 82871d0e9da64f57a56f97559d92c456b1861428 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