tree:   https://github.com/zen-kernel/zen-kernel 5.14/prjc
head:   bd5633e4daf64e2d775c0ba61a7f68f1a794ce38
commit: 8e79ff69bdee272975f92e45e8b4ecf0690b636e [199/226] sched/alt: [Sync] 2f064a59a11f sched: Change task_struct::state
config: i386-randconfig-s002-20210927 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://github.com/zen-kernel/zen-kernel/commit/8e79ff69bdee272975f92e45e8b4ecf0690b636e
        git remote add zen https://github.com/zen-kernel/zen-kernel
        git fetch --no-tags zen 5.14/prjc
        git checkout 8e79ff69bdee272975f92e45e8b4ecf0690b636e
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash kernel/sched/

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/alt_core.c:121:1: sparse: sparse: symbol '__pcpu_scope_sched_cpu_topo_end_mask' was not declared. Should it be static?
>> kernel/sched/alt_core.c:133:1: sparse: sparse: symbol '__pcpu_scope_sd_llc_id' was not declared. Should it be static?
>> kernel/sched/alt_core.c:832:38: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct task_struct *curr @@     got struct task_struct [noderef] __rcu *curr @@
   kernel/sched/alt_core.c:832:38: sparse:     expected struct task_struct *curr
   kernel/sched/alt_core.c:832:38: sparse:     got struct task_struct [noderef] __rcu *curr
>> kernel/sched/alt_core.c:868:6: sparse: sparse: symbol 'select_nohz_load_balancer' was not declared. Should it be static?
>> kernel/sched/alt_core.c:1539:45: sparse: sparse: incompatible types in comparison expression (different address spaces):
>> kernel/sched/alt_core.c:1539:45: sparse:    struct task_struct *
>> kernel/sched/alt_core.c:1539:45: sparse:    struct task_struct [noderef] __rcu *
>> kernel/sched/alt_core.c:2124:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct task_struct const *p @@     got struct task_struct [noderef] __rcu *curr @@
   kernel/sched/alt_core.c:2124:36: sparse:     expected struct task_struct const *p
   kernel/sched/alt_core.c:2124:36: sparse:     got struct task_struct [noderef] __rcu *curr
>> kernel/sched/alt_core.c:2692:47: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected void * @@     got void [noderef] __user *buffer @@
   kernel/sched/alt_core.c:2692:47: sparse:     expected void *
   kernel/sched/alt_core.c:2692:47: sparse:     got void [noderef] __user *buffer
   kernel/sched/alt_core.c:2680:5: sparse: sparse: symbol 'sysctl_schedstats' redeclared with different type (incompatible argument 3 (different address spaces)):
>> kernel/sched/alt_core.c:2680:5: sparse:    int extern [addressable] [signed] [toplevel] sysctl_schedstats( ... )
   kernel/sched/alt_core.c: note: in included file (through kernel/sched/alt_sched.h, kernel/sched/sched.h):
   include/linux/sched/sysctl.h:93:5: sparse: note: previously declared as:
>> include/linux/sched/sysctl.h:93:5: sparse:    int extern [addressable] [signed] [toplevel] sysctl_schedstats( ... )
>> kernel/sched/alt_core.c:6276:43: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct task_struct *push_task @@     got struct task_struct [noderef] __rcu *curr @@
   kernel/sched/alt_core.c:6276:43: sparse:     expected struct task_struct *push_task
   kernel/sched/alt_core.c:6276:43: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/alt_core.c:3382:15: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:3382:15: sparse:    struct task_struct *
   kernel/sched/alt_core.c:3382:15: sparse:    struct task_struct [noderef] __rcu *
>> kernel/sched/alt_core.c:4075:14: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct task_struct *prev @@     got struct task_struct [noderef] __rcu *curr @@
   kernel/sched/alt_core.c:4075:14: sparse:     expected struct task_struct *prev
   kernel/sched/alt_core.c:4075:14: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/alt_core.c:4677:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:4677:17: sparse:    struct task_struct *
   kernel/sched/alt_core.c:4677:17: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_core.c:4814:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:4814:22: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_core.c:4814:22: sparse:    struct task_struct *
>> kernel/sched/alt_core.c:6118:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct task_struct *p @@     got struct task_struct [noderef] __rcu *curr @@
   kernel/sched/alt_core.c:6118:25: sparse:     expected struct task_struct *p
   kernel/sched/alt_core.c:6118:25: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/alt_core.c:977:37: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct *
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_core.c:1497:38: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:1497:38: sparse:    struct task_struct [noderef] __rcu *
>> kernel/sched/alt_core.c:1497:38: sparse:    struct task_struct const *
   kernel/sched/alt_core.c:977:37: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct *
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_core.c:977:37: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct *
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_core.c:977:37: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct *
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_core.c:977:37: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct *
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_core.c:977:37: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct *
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_core.c:977:37: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct *
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/alt_core.c:977:37: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct *
   kernel/sched/alt_core.c:977:37: sparse:    struct task_struct [noderef] __rcu *

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
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