Hi Andrea, kernel test robot noticed the following build warnings: [auto build test WARNING on tip/sched/core] [also build test WARNING on linus/master v6.12-rc3 next-20241016] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Andrea-Righi/sched_ext-Trigger-ops-update_idle-from-pick_task_idle/20241015-191701 base: tip/sched/core patch link: https://lore.kernel.org/r/20241015111539.12136-1-andrea.righi%40linux.dev patch subject: [PATCH v4] sched_ext: Trigger ops.update_idle() from pick_task_idle() config: x86_64-randconfig-122-20241016 (https://download.01.org/0day-ci/archive/20241016/202410161955.CsmEsAy8-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241016/202410161955.CsmEsAy8-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410161955.CsmEsAy8-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) kernel/sched/build_policy.c: note: in included file: >> kernel/sched/idle.c:481:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/idle.c:481:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/idle.c:481:22: sparse: struct task_struct * kernel/sched/build_policy.c: note: in included file: kernel/sched/rt.c:991:38: 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:991:38: sparse: expected struct task_struct *curr kernel/sched/rt.c:991:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:1529:31: 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:1529:31: sparse: expected struct task_struct *p kernel/sched/rt.c:1529:31: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/build_policy.c: note: in included file: kernel/sched/deadline.c:2341:42: 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:2341:42: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:2341:42: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:1242:39: 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:1242:39: sparse: expected struct task_struct *p kernel/sched/deadline.c:1242:39: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1242:85: 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:1242:85: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:1242:85: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:1342:23: 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:1342:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:1342:23: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1651:31: 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:1651:31: sparse: expected struct task_struct *p kernel/sched/deadline.c:1651:31: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1651:70: 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:1651:70: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:1651:70: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:1739:38: 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:1739:38: sparse: expected struct task_struct *curr kernel/sched/deadline.c:1739:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:3054:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:3054:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:3054:22: sparse: struct task_struct * 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/smp.h, include/linux/sched/clock.h): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true kernel/sched/build_policy.c: note: in included file: kernel/sched/sched.h:2265:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2265:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2265:25: sparse: struct task_struct * kernel/sched/sched.h:2265:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2265:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2265:25: sparse: struct task_struct * kernel/sched/sched.h:2265:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2265:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2265:25: sparse: struct task_struct * kernel/sched/sched.h:2265:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2265:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2265:25: sparse: struct task_struct * kernel/sched/sched.h:2265:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2265:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2265:25: sparse: struct task_struct * kernel/sched/sched.h:2451:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2451:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2451:9: sparse: struct task_struct * kernel/sched/sched.h:2265:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2265:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2265:25: sparse: struct task_struct * kernel/sched/sched.h:2451:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2451:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2451:9: sparse: struct task_struct * kernel/sched/build_policy.c: note: in included file: kernel/sched/syscalls.c:1331:6: sparse: sparse: context imbalance in 'sched_getaffinity' - different lock contexts for basic block kernel/sched/build_policy.c: note: in included file: kernel/sched/sched.h:2265:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2265:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2265:25: sparse: struct task_struct * vim +481 kernel/sched/idle.c 466 467 struct task_struct *pick_task_idle(struct rq *rq) 468 { 469 /* 470 * When switching from a non-idle to the idle class, .set_next_task() 471 * is called only once during the transition. 472 * 473 * However, the CPU may remain active for multiple rounds running the 474 * idle task (e.g., by calling scx_bpf_kick_cpu() from the 475 * ops.update_idle() callback). 476 * 477 * In such cases, we need to keep updating the scx idle state to 478 * properly re-trigger the ops.update_idle() callback and ensure 479 * correct handling of scx idle state transitions. 480 */ > 481 if (rq->curr == rq->idle) 482 scx_update_idle(rq, true); 483 return rq->idle; 484 } 485 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
