From: kernel test robot <lkp@intel.com>
To: Tejun Heo <tj@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev
Subject: [tj-sched-ext:sub-cid-sched 24/26] kernel/sched/ext/sub.c:202:19: sparse: sparse: incorrect type in assignment (different address spaces)
Date: Thu, 08 Oct 2026 20:25:27 +0200 [thread overview]
Message-ID: <202610082015.LeBnslKG-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git sub-cid-sched
head: ab70cc94c6e1d685d061217812c15d7502eead7f
commit: 4b45dca90f4195528bf70a893ee3ff76ed5579b0 [24/26] sched_ext: Add ops.sub_cid_sched_updated() to report the sched running on a cid
config: sparc-randconfig-r2300-20261006 (https://download.01.org/0day-ci/archive/20261008/202610082015.LeBnslKG-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 8.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261008/202610082015.LeBnslKG-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/202610082015.LeBnslKG-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/deadline.c:3584:23: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:3584:23: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:3584:23: sparse: struct task_struct *
kernel/sched/deadline.c:3637:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/build_policy.c: note: in included file:
kernel/sched/ext/ext.c:448:47: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:1517:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:1721:15: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext/ext.c:1721:15: sparse: struct task_struct *
kernel/sched/ext/ext.c:1721:15: sparse: struct task_struct [noderef] __rcu *
kernel/sched/ext/ext.c:2523:35: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:2537:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *from @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:3425:39: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:3755:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:4945:48: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:4946:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:7487:57: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext/ext.c:7488:51: sparse: sparse: incorrect type in argument 5 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext/ext.c:7491:57: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:7492:51: sparse: sparse: incorrect type in argument 5 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:9045:32: 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/ext/ext.c:9091:44: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:9454:18: sparse: sparse: symbol 'scx_bpf_dsq_insert___v2' was not declared. Should it be static?
kernel/sched/ext/ext.c:9476:18: sparse: sparse: symbol 'scx_bpf_dsq_insert' was not declared. Should it be static?
kernel/sched/ext/ext.c:9536:1: sparse: sparse: symbol '__scx_bpf_dsq_insert_vtime' was not declared. Should it be static?
kernel/sched/ext/ext.c:9555:18: sparse: sparse: symbol 'scx_bpf_dsq_insert_vtime' was not declared. Should it be static?
kernel/sched/ext/ext.c:9716:17: sparse: sparse: symbol 'scx_bpf_dispatch_nr_slots' was not declared. Should it be static?
kernel/sched/ext/ext.c:9736:18: sparse: sparse: symbol 'scx_bpf_dispatch_cancel' was not declared. Should it be static?
kernel/sched/ext/ext.c:9780:18: sparse: sparse: symbol 'scx_bpf_dsq_move_to_local___v2' was not declared. Should it be static?
kernel/sched/ext/ext.c:9823:18: sparse: sparse: symbol 'scx_bpf_dsq_move_to_local' was not declared. Should it be static?
kernel/sched/ext/ext.c:9837:18: sparse: sparse: symbol 'scx_bpf_dsq_move_set_slice' was not declared. Should it be static?
kernel/sched/ext/ext.c:9856:18: sparse: sparse: symbol 'scx_bpf_dsq_move_set_vtime' was not declared. Should it be static?
kernel/sched/ext/ext.c:9890:18: sparse: sparse: symbol 'scx_bpf_dsq_move' was not declared. Should it be static?
kernel/sched/ext/ext.c:9915:18: sparse: sparse: symbol 'scx_bpf_dsq_move_vtime' was not declared. Should it be static?
kernel/sched/ext/ext.c:9956:17: sparse: sparse: symbol 'scx_bpf_reenqueue_local' was not declared. Should it be static?
kernel/sched/ext/ext.c:9995:17: sparse: sparse: symbol 'scx_bpf_create_dsq' was not declared. Should it be static?
kernel/sched/ext/ext.c:10082:18: sparse: sparse: symbol 'scx_bpf_task_set_slice' was not declared. Should it be static?
kernel/sched/ext/ext.c:10138:18: sparse: sparse: symbol 'scx_bpf_task_set_dsq_vtime' was not declared. Should it be static?
kernel/sched/ext/ext.c:10275:18: sparse: sparse: symbol 'scx_bpf_kick_cpu' was not declared. Should it be static?
kernel/sched/ext/ext.c:10298:18: sparse: sparse: symbol 'scx_bpf_kick_cid' was not declared. Should it be static?
kernel/sched/ext/ext.c:10325:17: sparse: sparse: symbol 'scx_bpf_dsq_nr_queued' was not declared. Should it be static?
kernel/sched/ext/ext.c:10372:18: sparse: sparse: symbol 'scx_bpf_destroy_dsq' was not declared. Should it be static?
kernel/sched/ext/ext.c:10398:17: sparse: sparse: symbol 'bpf_iter_scx_dsq_new' was not declared. Should it be static?
kernel/sched/ext/ext.c:10442:32: sparse: sparse: symbol 'bpf_iter_scx_dsq_next' was not declared. Should it be static?
kernel/sched/ext/ext.c:10460:18: sparse: sparse: symbol 'bpf_iter_scx_dsq_destroy' was not declared. Should it be static?
kernel/sched/ext/ext.c:10489:32: sparse: sparse: symbol 'scx_bpf_dsq_peek' was not declared. Should it be static?
kernel/sched/ext/ext.c:10532:18: sparse: sparse: symbol 'scx_bpf_dsq_reenq' was not declared. Should it be static?
kernel/sched/ext/ext.c:10572:18: sparse: sparse: symbol 'scx_bpf_reenqueue_local___v2' was not declared. Should it be static?
kernel/sched/ext/ext.c:10665:18: sparse: sparse: symbol 'scx_bpf_exit_bstr' was not declared. Should it be static?
kernel/sched/ext/ext.c:10690:18: sparse: sparse: symbol 'scx_bpf_error_bstr' was not declared. Should it be static?
kernel/sched/ext/ext.c:10717:18: sparse: sparse: symbol 'scx_bpf_dump_bstr' was not declared. Should it be static?
kernel/sched/ext/ext.c:10772:17: sparse: sparse: symbol 'scx_bpf_cpuperf_cap' was not declared. Should it be static?
kernel/sched/ext/ext.c:10792:17: sparse: sparse: symbol 'scx_bpf_cidperf_cap' was not declared. Should it be static?
kernel/sched/ext/ext.c:10823:17: sparse: sparse: symbol 'scx_bpf_cpuperf_cur' was not declared. Should it be static?
kernel/sched/ext/ext.c:10843:17: sparse: sparse: symbol 'scx_bpf_cidperf_cur' was not declared. Should it be static?
kernel/sched/ext/ext.c:10930:18: sparse: sparse: symbol 'scx_bpf_cpuperf_set' was not declared. Should it be static?
kernel/sched/ext/ext.c:10957:17: sparse: sparse: symbol 'scx_bpf_cidperf_set' was not declared. Should it be static?
kernel/sched/ext/ext.c:10984:17: sparse: sparse: symbol 'scx_bpf_nr_node_ids' was not declared. Should it be static?
kernel/sched/ext/ext.c:10994:17: sparse: sparse: symbol 'scx_bpf_nr_cpu_ids' was not declared. Should it be static?
kernel/sched/ext/ext.c:11004:17: sparse: sparse: symbol 'scx_bpf_nr_cids' was not declared. Should it be static?
kernel/sched/ext/ext.c:11019:17: sparse: sparse: symbol 'scx_bpf_nr_online_cids' was not declared. Should it be static?
kernel/sched/ext/ext.c:11037:24: sparse: sparse: symbol 'scx_bpf_online_cmask' was not declared. Should it be static?
kernel/sched/ext/ext.c:11061:17: sparse: sparse: symbol 'scx_bpf_this_cid' was not declared. Should it be static?
kernel/sched/ext/ext.c:11076:34: sparse: sparse: symbol 'scx_bpf_get_possible_cpumask' was not declared. Should it be static?
kernel/sched/ext/ext.c:11084:34: sparse: sparse: symbol 'scx_bpf_get_online_cpumask' was not declared. Should it be static?
kernel/sched/ext/ext.c:11093:18: sparse: sparse: symbol 'scx_bpf_put_cpumask' was not declared. Should it be static?
kernel/sched/ext/ext.c:11121:17: sparse: sparse: symbol 'scx_bpf_task_cpu' was not declared. Should it be static?
kernel/sched/ext/ext.c:11134:17: sparse: sparse: symbol 'scx_bpf_task_cid' was not declared. Should it be static?
kernel/sched/ext/ext.c:11154:23: sparse: sparse: symbol 'scx_bpf_locked_rq' was not declared. Should it be static?
kernel/sched/ext/ext.c:11186:32: sparse: sparse: symbol 'scx_bpf_cpu_curr' was not declared. Should it be static?
kernel/sched/ext/ext.c:11210:32: sparse: sparse: symbol 'scx_bpf_cid_curr' was not declared. Should it be static?
kernel/sched/ext/ext.c:11235:32: sparse: sparse: symbol 'scx_bpf_tid_to_task' was not declared. Should it be static?
kernel/sched/ext/ext.c:11303:17: sparse: sparse: symbol 'scx_bpf_now' was not declared. Should it be static?
kernel/sched/ext/ext.c:11338:18: sparse: sparse: symbol 'scx_bpf_events' was not declared. Should it be static?
kernel/sched/build_policy.c: note: in included file:
kernel/sched/ext/cid.c:492:18: sparse: sparse: symbol 'scx_bpf_cid_override' was not declared. Should it be static?
kernel/sched/ext/cid.c:656:17: sparse: sparse: symbol 'scx_bpf_cid_to_cpu' was not declared. Should it be static?
kernel/sched/ext/cid.c:701:17: sparse: sparse: symbol 'scx_bpf_cpu_to_cid' was not declared. Should it be static?
kernel/sched/ext/cid.c:975:18: sparse: sparse: symbol 'scx_bpf_cid_topo' was not declared. Should it be static?
kernel/sched/build_policy.c: note: in included file:
kernel/sched/ext/idle.c:1039:17: sparse: sparse: symbol 'scx_bpf_cpu_node' was not declared. Should it be static?
kernel/sched/ext/idle.c:1122:1: sparse: sparse: symbol '__scx_bpf_select_cpu_and' was not declared. Should it be static?
kernel/sched/ext/idle.c:1141:17: sparse: sparse: symbol 'scx_bpf_select_cpu_and' was not declared. Should it be static?
kernel/sched/ext/idle.c:1184:34: sparse: sparse: symbol 'scx_bpf_get_idle_cpumask_node' was not declared. Should it be static?
kernel/sched/ext/idle.c:1242:34: sparse: sparse: symbol 'scx_bpf_get_idle_smtmask_node' was not declared. Should it be static?
kernel/sched/ext/idle.c:1361:17: sparse: sparse: symbol 'scx_bpf_pick_idle_cpu_node' was not declared. Should it be static?
kernel/sched/ext/idle.c:1447:17: sparse: sparse: symbol 'scx_bpf_pick_any_cpu_node' was not declared. Should it be static?
kernel/sched/build_policy.c: note: in included file:
>> kernel/sched/ext/sub.c:202:19: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/sub.c:2438:17: sparse: sparse: symbol 'scx_bpf_sub_grant' was not declared. Should it be static?
kernel/sched/ext/sub.c:2558:18: sparse: sparse: symbol 'scx_bpf_sub_revoke' was not declared. Should it be static?
kernel/sched/ext/sub.c:2652:17: sparse: sparse: symbol 'scx_bpf_sub_caps' was not declared. Should it be static?
kernel/sched/ext/sub.c:2742:17: sparse: sparse: symbol 'scx_bpf_sub_kill_bstr' was not declared. Should it be static?
kernel/sched/build_policy.c: note: in included file:
kernel/sched/syscalls.c:1420:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/build_policy.c: note: in included file:
kernel/sched/rt.c:1313:23: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:1313:23: sparse: struct task_struct *
kernel/sched/rt.c:1313:23: sparse: struct task_struct [noderef] __rcu *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/sched.h:2504:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2504:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2504:25: sparse: struct task_struct *
kernel/sched/sched.h:2504:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2504:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2504:25: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:2504:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2504:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2504:25: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:1454:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1454:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:1454:25: sparse: struct task_struct *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/deadline.c:2340:15: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2340:15: sparse: struct task_struct *
kernel/sched/deadline.c:2340:15: sparse: struct task_struct [noderef] __rcu *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/sched.h:2504:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2504:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2504:25: sparse: struct task_struct *
kernel/sched/sched.h:2504:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2504:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2504:25: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:2504:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2504:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2504:25: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:2515:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2515:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2515:26: sparse: struct task_struct *
kernel/sched/sched.h:1454:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1454:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:1454:25: sparse: struct task_struct *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/syscalls.c:1345:11: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
kernel/sched/rt.c:1680:15: sparse: sparse: dereference of noderef expression
vim +202 kernel/sched/ext/sub.c
174
175 /**
176 * scx_ops_cid_sched_updated_enable - Maintain rq->scx.sched if @sch has the op
177 * @sch: sched being enabled, its has_op filled in
178 *
179 * rq->scx.sched is maintained only while a loaded sched implements
180 * ops.sub_cid_sched_updated(), so that everyone else pays one static branch per
181 * session open or close. The first such sched turns the key on and then
182 * initializes every rq from the task running there, in that order so that no
183 * session change in between goes unrecorded. While the key is off every
184 * rq->scx.sched is NULL, see scx_ops_cid_sched_updated_disable().
185 */
186 void scx_ops_cid_sched_updated_enable(struct scx_sched *sch)
187 {
188 s32 cpu;
189
190 lockdep_assert_held(&scx_enable_mutex);
191
192 if (!SCX_HAS_OP(sch, sub_cid_sched_updated) || scx_nr_ops_cid_sched_updated++)
193 return;
194
195 static_branch_enable(&__scx_ops_cid_sched_updated_enabled);
196
197 for_each_possible_cpu(cpu) {
198 struct rq *rq = cpu_rq(cpu);
199 struct task_struct *p;
200
201 guard(rq_lock_irqsave)(rq);
> 202 p = rq->donor;
203 if (p->sched_class == &ext_sched_class &&
204 (p->scx.flags & SCX_TASK_RUN_TRACKED))
205 rq->scx.sched = scx_task_sched(p);
206 }
207 }
208
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-10-08 18:25 UTC|newest]
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