Re: [PATCH 2/4] sched/core: introduce core to struct cfs_rq

[kernel test robot]

Hi Cruz,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.7-rc1 next-20231117]
[cannot apply to tip/sched/core]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Cruz-Zhao/sched-core-introduce-core_id-to-struct-rq/20231115-193559
base:   linus/master
patch link:    https://lore.kernel.org/r/20231115113341.13261-3-CruzZhao%40linux.alibaba.com
patch subject: [PATCH 2/4] sched/core: introduce core to struct cfs_rq
config: x86_64-randconfig-123-20231118 (https://download.01.org/0day-ci/archive/20231118/202311181807.OhNGAYXK-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231118/202311181807.OhNGAYXK-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311181807.OhNGAYXK-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
   kernel/sched/fair.c:1178:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct sched_entity const *se @@     got struct sched_entity [noderef] __rcu * @@
   kernel/sched/fair.c:1178:34: sparse:     expected struct sched_entity const *se
   kernel/sched/fair.c:1178:34: sparse:     got struct sched_entity [noderef] __rcu *
   kernel/sched/fair.c:2949:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct task_struct *tsk @@     got struct task_struct [noderef] __rcu * @@
   kernel/sched/fair.c:2949:13: sparse:     expected struct task_struct *tsk
   kernel/sched/fair.c:2949:13: sparse:     got struct task_struct [noderef] __rcu *
   kernel/sched/fair.c:12185:9: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct sched_domain *[assigned] sd @@     got struct sched_domain [noderef] __rcu *parent @@
   kernel/sched/fair.c:12185:9: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:12185:9: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:7801:20: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct sched_domain *[assigned] sd @@     got struct sched_domain [noderef] __rcu *parent @@
   kernel/sched/fair.c:7801:20: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:7801:20: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:8006:9: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct sched_domain *[assigned] tmp @@     got struct sched_domain [noderef] __rcu *parent @@
   kernel/sched/fair.c:8006:9: sparse:     expected struct sched_domain *[assigned] tmp
   kernel/sched/fair.c:8006:9: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:8105:38: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct task_struct *curr @@     got struct task_struct [noderef] __rcu *curr @@
   kernel/sched/fair.c:8105:38: sparse:     expected struct task_struct *curr
   kernel/sched/fair.c:8105:38: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/fair.c:8385:38: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct task_struct *curr @@     got struct task_struct [noderef] __rcu *curr @@
   kernel/sched/fair.c:8385:38: sparse:     expected struct task_struct *curr
   kernel/sched/fair.c:8385:38: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/fair.c:9376:40: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct sched_domain *child @@     got struct sched_domain [noderef] __rcu *child @@
   kernel/sched/fair.c:9376:40: sparse:     expected struct sched_domain *child
   kernel/sched/fair.c:9376:40: sparse:     got struct sched_domain [noderef] __rcu *child
   kernel/sched/fair.c:10013:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/fair.c:10013:22: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/fair.c:10013:22: sparse:    struct task_struct *
   kernel/sched/fair.c:11445:9: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct sched_domain *[assigned] sd @@     got struct sched_domain [noderef] __rcu *parent @@
   kernel/sched/fair.c:11445:9: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:11445:9: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:11102:44: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct sched_domain *sd_parent @@     got struct sched_domain [noderef] __rcu *parent @@
   kernel/sched/fair.c:11102:44: sparse:     expected struct sched_domain *sd_parent
   kernel/sched/fair.c:11102:44: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:11541:9: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct sched_domain *[assigned] sd @@     got struct sched_domain [noderef] __rcu *parent @@
   kernel/sched/fair.c:11541:9: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:11541:9: sparse:     got struct sched_domain [noderef] __rcu *parent
>> kernel/sched/fair.c:12423:6: sparse: sparse: symbol 'sched_core_init_cfs_rq' was not declared. Should it be static?
   kernel/sched/fair.c:6418:35: sparse: sparse: marked inline, but without a definition
   kernel/sched/fair.c: note: in included file:
   kernel/sched/sched.h:2283:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2283:9: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2283:9: sparse:    struct task_struct *
   kernel/sched/sched.h:2119:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2119:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2119:25: sparse:    struct task_struct *
   kernel/sched/sched.h:2119:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2119:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2119:25: sparse:    struct task_struct *

vim +/sched_core_init_cfs_rq +12423 kernel/sched/fair.c

 12422	
 12423	void sched_core_init_cfs_rq(struct task_group *tg, struct cfs_rq *cfs_rq)
 12424	{
 12425	#ifdef CONFIG_FAIR_GROUP_SCHED
 12426		struct rq *rq = rq_of(cfs_rq);
 12427		int core_id = rq->core_id;
 12428	
 12429		cfs_rq->core = tg->cfs_rq[core_id];
 12430	#endif
 12431	}
 12432	

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