Hi Huaixin,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tip/sched/core]
[also build test WARNING on tip/master linux/master linus/master v5.11-rc4 next-20210120]
[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]

url:    https://github.com/0day-ci/linux/commits/Huaixin-Chang/sched-fair-Introduce-primitives-for-CFS-bandwidth-burst/20210120-212731
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 65bcf072e20ed7597caa902f170f293662b0af3c
config: x86_64-randconfig-s022-20210120 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-208-g46a52ca4-dirty
        # https://github.com/0day-ci/linux/commit/a62cc8421988be29990ad86e33e877fb8776f8bd
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Huaixin-Chang/sched-fair-Introduce-primitives-for-CFS-bandwidth-burst/20210120-212731
        git checkout a62cc8421988be29990ad86e33e877fb8776f8bd
        # 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/sched/fair.c:879:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct sched_entity *se @@     got struct sched_entity [noderef] __rcu * @@
   kernel/sched/fair.c:879:34: sparse:     expected struct sched_entity *se
   kernel/sched/fair.c:879:34: sparse:     got struct sched_entity [noderef] __rcu *
   kernel/sched/fair.c:2523:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct task_struct *tsk @@     got struct task_struct [noderef] __rcu * @@
   kernel/sched/fair.c:2523:13: sparse:     expected struct task_struct *tsk
   kernel/sched/fair.c:2523:13: sparse:     got struct task_struct [noderef] __rcu *
   kernel/sched/fair.c:10660:9: 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:10660:9: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:10660:9: sparse:     got struct sched_domain [noderef] __rcu *parent
>> kernel/sched/fair.c:4623:6: sparse: sparse: symbol '__refill_cfs_bandwidth_runtime' was not declared. Should it be static?
   kernel/sched/fair.c:4937:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/fair.c:4937:22: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/fair.c:4937:22: sparse:    struct task_struct *
   kernel/sched/fair.c:5480:38: 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:5480:38: sparse:     expected struct task_struct *curr
   kernel/sched/fair.c:5480:38: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/fair.c:6668:20: 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:6668:20: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:6668:20: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:6790:9: 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:6790:9: sparse:     expected struct sched_domain *[assigned] tmp
   kernel/sched/fair.c:6790:9: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:6988:38: 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:6988:38: sparse:     expected struct task_struct *curr
   kernel/sched/fair.c:6988:38: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/fair.c:7239:38: 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:7239:38: sparse:     expected struct task_struct *curr
   kernel/sched/fair.c:7239:38: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/fair.c:8210:40: 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:8210:40: sparse:     expected struct sched_domain *child
   kernel/sched/fair.c:8210:40: sparse:     got struct sched_domain [noderef] __rcu *child
   kernel/sched/fair.c:8703:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/fair.c:8703:22: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/fair.c:8703:22: sparse:    struct task_struct *
   kernel/sched/fair.c:9979:9: 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:9979:9: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:9979:9: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:9635:44: 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:9635:44: sparse:     expected struct sched_domain *sd_parent
   kernel/sched/fair.c:9635:44: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:10057:9: 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:10057:9: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:10057:9: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:2467:9: sparse: sparse: context imbalance in 'task_numa_placement' - different lock contexts for basic block
   kernel/sched/fair.c:4593:31: sparse: sparse: marked inline, but without a definition
   kernel/sched/fair.c: note: in included file:
   kernel/sched/sched.h:1724:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1724:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1724:25: sparse:    struct task_struct *
   kernel/sched/sched.h:1879:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1879:9: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1879:9: sparse:    struct task_struct *
   kernel/sched/sched.h:1724:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1724:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1724:25: sparse:    struct task_struct *
   kernel/sched/sched.h:1724:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1724:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1724:25: sparse:    struct task_struct *

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org