[chrome-os:chromeos-5.15 8/9] kernel/sched/deadline.c:1543:6: sparse: sparse: symbol 'dl_server_freeze' was not declared. Should it be static?

[kernel test robot <lkp@intel.com>]

tree:   https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.15
head:   a9b51c2494133c012e34a050191e3954b5109747
commit: 16d0ae5e68d0f8b9e3749021fd3599d88b72fc6c [8/9] CHROMIUM: sched/dlserver: Freeze dlserver on system suspend.
config: x86_64-randconfig-121-20240512 (https://download.01.org/0day-ci/archive/20240512/202405120932.H7VBwEt2-lkp@intel.com/config)
compiler: gcc-12 (Ubuntu 12.3.0-9ubuntu2) 12.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240512/202405120932.H7VBwEt2-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/202405120932.H7VBwEt2-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   kernel/sched/deadline.c:2171:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected struct sched_dl_entity *b @@     got struct sched_dl_entity [noderef] __rcu * @@
   kernel/sched/deadline.c:2171:42: sparse:     expected struct sched_dl_entity *b
   kernel/sched/deadline.c:2171:42: sparse:     got struct sched_dl_entity [noderef] __rcu *
   kernel/sched/deadline.c:1238:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct task_struct *p @@     got struct task_struct [noderef] __rcu *curr @@
   kernel/sched/deadline.c:1238:23: sparse:     expected struct task_struct *p
   kernel/sched/deadline.c:1238:23: sparse:     got struct task_struct [noderef] __rcu *curr
>> kernel/sched/deadline.c:1543:6: sparse: sparse: symbol 'dl_server_freeze' was not declared. Should it be static?
>> kernel/sched/deadline.c:1552:6: sparse: sparse: symbol 'dl_server_thaw' was not declared. Should it be static?
   kernel/sched/deadline.c:1656:38: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct task_struct *curr @@     got struct task_struct [noderef] __rcu *curr @@
   kernel/sched/deadline.c:1656:38: sparse:     expected struct task_struct *curr
   kernel/sched/deadline.c:1656:38: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/deadline.c:2906:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/deadline.c:2906:22: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/deadline.c:2906:22: sparse:    struct task_struct *
   kernel/sched/deadline.c:1140:29: sparse: sparse: context imbalance in 'dl_task_timer' - different lock contexts for basic block
   kernel/sched/deadline.c:1394:36: sparse: sparse: dereference of noderef expression
   kernel/sched/deadline.c: note: in included file:
   kernel/sched/sched.h:1605:9: sparse: sparse: context imbalance in 'inactive_task_timer' - unexpected unlock
   kernel/sched/sched.h:2076:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2076:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2076:25: sparse:    struct task_struct *
   kernel/sched/sched.h:2076:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2076:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2076:25: sparse:    struct task_struct *

vim +/dl_server_freeze +1543 kernel/sched/deadline.c

  1542	
> 1543	void dl_server_freeze(struct sched_dl_entity *dl_se)
  1544	{
  1545		if (dl_se->dl_server_active) {
  1546			update_rq_clock(dl_se->rq);
  1547			__dl_server_stop(dl_se);
  1548		}
  1549		dl_se->dl_server_frozen = 1;
  1550	}
  1551	
> 1552	void dl_server_thaw(struct sched_dl_entity *dl_se)
  1553	{
  1554		if (dl_se->dl_server_active) {
  1555			update_rq_clock(dl_se->rq);
  1556			__dl_server_start(dl_se);
  1557		}
  1558		dl_se->dl_server_frozen = 0;
  1559	}
  1560	

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