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Message-ID: <202411201944.tg6uGuAT-lkp@intel.com>
Date: Wed, 20 Nov 2024 20:05:37 +0800
From: kernel test robot <lkp@...el.com>
To: Tejun Heo <tj@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
David Vernet <dvernet@...a.com>, Josh Don <joshdon@...gle.com>
Subject: kernel/sched/ext.c:2399:56: sparse: sparse: incorrect type in
initializer (different address spaces)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: bf9aa14fc523d2763fc9a10672a709224e8fcaf4
commit: 7b0888b7cc1924b74ce660e02f6211df8dd46e7b sched_ext: Implement core-sched support
date: 5 months ago
config: s390-randconfig-r122-20241119 (https://download.01.org/0day-ci/archive/20241120/202411201944.tg6uGuAT-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
reproduce: (https://download.01.org/0day-ci/archive/20241120/202411201944.tg6uGuAT-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411201944.tg6uGuAT-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/build_policy.c: note: in included file:
kernel/sched/rt.c:916:70: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:916:70: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:916:70: sparse: struct task_struct *
kernel/sched/rt.c:2364:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:2364:25: sparse: struct task_struct *
kernel/sched/rt.c:2364:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:1002:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:1002:38: sparse: expected struct task_struct *curr
kernel/sched/rt.c:1002:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:1536:31: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:1536:31: sparse: expected struct task_struct *p
kernel/sched/rt.c:1536:31: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:1876:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@
kernel/sched/rt.c:1876:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/rt.c:1876:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/rt.c:1556:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@
kernel/sched/rt.c:1556:14: sparse: expected struct task_struct *curr
kernel/sched/rt.c:1556:14: sparse: got struct task_struct [noderef] __rcu *
kernel/sched/rt.c:1621:45: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:1621:45: sparse: expected struct task_struct *p
kernel/sched/rt.c:1621:45: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:1682:67: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:1682:67: sparse: expected struct task_struct *tsk
kernel/sched/rt.c:1682:67: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2044:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *task @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:2044:40: sparse: expected struct task_struct *task
kernel/sched/rt.c:2044:40: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2067:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:2067:13: sparse: struct task_struct *
kernel/sched/rt.c:2067:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:2417:54: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:2417:54: sparse: expected struct task_struct *tsk
kernel/sched/rt.c:2417:54: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2419:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:2419:40: sparse: expected struct task_struct *p
kernel/sched/rt.c:2419:40: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2419:61: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:2419:61: sparse: expected struct task_struct *p
kernel/sched/rt.c:2419:61: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/build_policy.c: note: in included file:
kernel/sched/deadline.c:2401:23: 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:2401:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:2401:23: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2411:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2411:13: sparse: struct task_struct *
kernel/sched/deadline.c:2411:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2519:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2519:25: sparse: struct task_struct *
kernel/sched/deadline.c:2519:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2026:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@
kernel/sched/deadline.c:2026:42: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:2026:42: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:2037:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/deadline.c:2037:38: sparse: expected struct task_struct *tsk
kernel/sched/deadline.c:2037:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:1220:23: 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:1220:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:1220:23: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:1444:38: 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:1444:38: sparse: expected struct task_struct *curr
kernel/sched/deadline.c:1444:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2262:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@
kernel/sched/deadline.c:2262:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/deadline.c:2262:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/deadline.c:1911:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@
kernel/sched/deadline.c:1911:14: sparse: expected struct task_struct *curr
kernel/sched/deadline.c:1911:14: sparse: got struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:1987:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/deadline.c:1987:43: sparse: expected struct task_struct *p
kernel/sched/deadline.c:1987:43: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2566:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/deadline.c:2566:38: sparse: expected struct task_struct *tsk
kernel/sched/deadline.c:2566:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2568:23: 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:2568:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:2568:23: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2570:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@
kernel/sched/deadline.c:2570:44: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:2570:44: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:2745:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2745:22: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2745:22: sparse: struct task_struct *
kernel/sched/deadline.c:2794:32: 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.c:772:25: sparse: sparse: symbol 'scx_has_op' was not declared. Should it be static?
kernel/sched/ext.c:876:22: sparse: sparse: symbol 'scx_dump_data' was not declared. Should it be static?
kernel/sched/ext.c:1334:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext.c:1406:56: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext.c:1406:56: sparse: struct task_struct *
kernel/sched/ext.c:1406:56: sparse: struct task_struct [noderef] __rcu *
kernel/sched/ext.c:1799:35: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext.c:1799:35: sparse: expected struct task_struct *p
kernel/sched/ext.c:1799:35: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/ext.c:1809:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *from @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext.c:1809:38: sparse: expected struct task_struct *from
kernel/sched/ext.c:1809:38: sparse: got struct task_struct [noderef] __rcu *curr
>> kernel/sched/ext.c:2399:56: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *sprev @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext.c:2399:56: sparse: expected struct task_struct *sprev
kernel/sched/ext.c:2399:56: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/ext.c:4206:52: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext.c:4206:52: sparse: expected struct task_struct *p
kernel/sched/ext.c:4206:52: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/ext.c:4914:32: 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.c:4914:32: sparse: expected struct task_struct const *p
kernel/sched/ext.c:4914:32: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/ext.c:5905:33: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext.c:5905:33: sparse: struct task_struct [noderef] __rcu *
kernel/sched/ext.c:5905:33: sparse: struct task_struct const *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/syscalls.c:206:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/syscalls.c:206:22: sparse: struct task_struct [noderef] __rcu *
kernel/sched/syscalls.c:206:22: sparse: struct task_struct *
kernel/sched/build_policy.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/xarray.h, ...):
include/linux/page-flags.h:240:46: sparse: sparse: self-comparison always evaluates to false
include/linux/page-flags.h:240:46: sparse: sparse: self-comparison always evaluates to false
kernel/sched/build_policy.c: note: in included file:
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2409:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2409:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2409:9: sparse: struct task_struct *
kernel/sched/sched.h:2234:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2234:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2234:25: sparse: struct task_struct *
kernel/sched/sched.h:2409:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2409:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2409:9: sparse: struct task_struct *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/syscalls.c:1426:6: sparse: sparse: context imbalance in 'sched_getaffinity' - wrong count at exit
kernel/sched/build_policy.c: note: in included file:
kernel/sched/rt.c:1707:15: sparse: sparse: dereference of noderef expression
vim +2399 kernel/sched/ext.c
2378
2379 static int balance_scx(struct rq *rq, struct task_struct *prev,
2380 struct rq_flags *rf)
2381 {
2382 int ret;
2383
2384 ret = balance_one(rq, prev, rf, true);
2385
2386 #ifdef CONFIG_SCHED_SMT
2387 /*
2388 * When core-sched is enabled, this ops.balance() call will be followed
2389 * by put_prev_scx() and pick_task_scx() on this CPU and pick_task_scx()
2390 * on the SMT siblings. Balance the siblings too.
2391 */
2392 if (sched_core_enabled(rq)) {
2393 const struct cpumask *smt_mask = cpu_smt_mask(cpu_of(rq));
2394 int scpu;
2395
2396 for_each_cpu_andnot(scpu, smt_mask, cpumask_of(cpu_of(rq))) {
2397 struct rq *srq = cpu_rq(scpu);
2398 struct rq_flags srf;
> 2399 struct task_struct *sprev = srq->curr;
2400
2401 /*
2402 * While core-scheduling, rq lock is shared among
2403 * siblings but the debug annotations and rq clock
2404 * aren't. Do pinning dance to transfer the ownership.
2405 */
2406 WARN_ON_ONCE(__rq_lockp(rq) != __rq_lockp(srq));
2407 rq_unpin_lock(rq, rf);
2408 rq_pin_lock(srq, &srf);
2409
2410 update_rq_clock(srq);
2411 balance_one(srq, sprev, &srf, false);
2412
2413 rq_unpin_lock(srq, &srf);
2414 rq_repin_lock(rq, rf);
2415 }
2416 }
2417 #endif
2418 return ret;
2419 }
2420
--
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