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charset=utf-8 Content-Transfer-Encoding: quoted-printable tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git sche= d/preempt-dynamic-optimizations head: 16adb0d62633d31709c26ea63ab9de6ec1bbdf4e commit: 16adb0d62633d31709c26ea63ab9de6ec1bbdf4e [1/1] sched: Avoid generat= ing cond_resched() code when CONFIG_ARCH_HAS_PREEMPT_LAZY=3Dy config: loongarch-randconfig-001-20260225 (https://download.01.org/0day-ci/= archive/20260225/202602252143.hft7gnDD-lkp@intel.com/config) compiler: loongarch64-linux-gcc (GCC) 13.4.0 reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/archive= /20260225/202602252143.hft7gnDD-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new versio= n of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202602252143.hft7gnDD-lkp@i= ntel.com/ All warnings (new ones prefixed by >>): >> kernel/sched/core.c:7455:13: warning: no previous prototype for 'dynamic= _cond_resched' [-Wmissing-prototypes] 7455 | int __sched dynamic_cond_resched(void) | ^~~~~~~~~~~~~~~~~~~~ vim +/dynamic_cond_resched +7455 kernel/sched/core.c 48f24c4da1ee7f3 kernel/sched.c Ingo Molnar 2006-07-03 7448 =20 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7449 # = define might_resched_dynamic_enabled __cond_resched 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7450 # = define might_resched_dynamic_disabled ((void *)&__static_call_return0) 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7451 DE= FINE_STATIC_CALL_RET0(might_resched, __cond_resched); 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7452 EX= PORT_STATIC_CALL_TRAMP(might_resched); 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7453 # = elif defined(CONFIG_HAVE_PREEMPT_DYNAMIC_KEY) 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7454 st= atic DEFINE_STATIC_KEY_FALSE(sk_dynamic_cond_resched); 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 @7455 in= t __sched dynamic_cond_resched(void) 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7456 { 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7457 i= f (!static_branch_unlikely(&sk_dynamic_cond_resched)) 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7458 = return 0; 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7459 r= eturn __cond_resched(); 700a78335fc28a5 kernel/sched/core.c Christian G=C3=B6ttsche 2022-06-15 746= 0 } 04746ed80bcf313 kernel/sched/core.c Ingo Molnar 2024-04-07 7461 EX= PORT_SYMBOL(dynamic_cond_resched); 700a78335fc28a5 kernel/sched/core.c Christian G=C3=B6ttsche 2022-06-15 746= 2 =20 :::::: The code at line 7455 was first introduced by commit :::::: 04746ed80bcf3130951ed4d5c1bc5b0bcabdde22 sched/syscalls: Split out k= ernel/sched/syscalls.c from kernel/sched/core.c :::::: TO: Ingo Molnar :::::: CC: Ingo Molnar --=20 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki