tree: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git fixes-test head: afc2830892a128a13a65f677271a0a48aeb61b5e commit: 4747e17fe063720a30b1c0075bae3e8f8acd26f4 [10/12] powerpc/32: Use HAVE_PREEMPT_DYNAMIC_CALL instead of HAVE_PREEMPT_DYNAMIC_KEY config: powerpc-randconfig-002-20260711 (https://download.01.org/0day-ci/archive/20260711/[email protected]/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260711/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>): >> kernel/sched/core.c:7449:1: error: type specifier missing, defaults to >> 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int] 7449 | EXPORT_STATIC_CALL_TRAMP(preempt_schedule); | ^ include/linux/static_call.h:223:2: note: expanded from macro 'EXPORT_STATIC_CALL_TRAMP' 223 | ARCH_ADD_TRAMP_KEY(name) | ^ >> kernel/sched/core.c:7449:26: error: a parameter list without types is only >> allowed in a function definition 7449 | EXPORT_STATIC_CALL_TRAMP(preempt_schedule); | ^ kernel/sched/core.c:7522:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int] 7522 | EXPORT_STATIC_CALL_TRAMP(preempt_schedule_notrace); | ^ include/linux/static_call.h:223:2: note: expanded from macro 'EXPORT_STATIC_CALL_TRAMP' 223 | ARCH_ADD_TRAMP_KEY(name) | ^ kernel/sched/core.c:7522:26: error: a parameter list without types is only allowed in a function definition 7522 | EXPORT_STATIC_CALL_TRAMP(preempt_schedule_notrace); | ^ kernel/sched/core.c:7769:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int] 7769 | EXPORT_STATIC_CALL_TRAMP(cond_resched); | ^ include/linux/static_call.h:223:2: note: expanded from macro 'EXPORT_STATIC_CALL_TRAMP' 223 | ARCH_ADD_TRAMP_KEY(name) | ^ kernel/sched/core.c:7769:26: error: a parameter list without types is only allowed in a function definition 7769 | EXPORT_STATIC_CALL_TRAMP(cond_resched); | ^ kernel/sched/core.c:7774:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int] 7774 | EXPORT_STATIC_CALL_TRAMP(might_resched); | ^ include/linux/static_call.h:223:2: note: expanded from macro 'EXPORT_STATIC_CALL_TRAMP' 223 | ARCH_ADD_TRAMP_KEY(name) | ^ kernel/sched/core.c:7774:26: error: a parameter list without types is only allowed in a function definition 7774 | EXPORT_STATIC_CALL_TRAMP(might_resched); | ^ 8 errors generated. vim +/int +7449 kernel/sched/core.c 009f60e2763568 Oleg Nesterov 2014-10-05 7441 2c9a98d3bc8087 Peter Zijlstra (Intel 2021-01-18 7442) #ifdef CONFIG_PREEMPT_DYNAMIC b7ebb758568b60 Ingo Molnar 2025-05-28 7443 # ifdef CONFIG_HAVE_PREEMPT_DYNAMIC_CALL 8a69fe0be143b0 Mark Rutland 2022-02-14 7444 # ifndef preempt_schedule_dynamic_enabled 8a69fe0be143b0 Mark Rutland 2022-02-14 7445 # define preempt_schedule_dynamic_enabled preempt_schedule 8a69fe0be143b0 Mark Rutland 2022-02-14 7446 # define preempt_schedule_dynamic_disabled NULL 8a69fe0be143b0 Mark Rutland 2022-02-14 7447 # endif 8a69fe0be143b0 Mark Rutland 2022-02-14 7448 DEFINE_STATIC_CALL(preempt_schedule, preempt_schedule_dynamic_enabled); ef72661e28c64a Peter Zijlstra 2021-01-25 @7449 EXPORT_STATIC_CALL_TRAMP(preempt_schedule); 99cf983cc8bca4 Mark Rutland 2022-02-14 7450 # elif defined(CONFIG_HAVE_PREEMPT_DYNAMIC_KEY) 99cf983cc8bca4 Mark Rutland 2022-02-14 7451 static DEFINE_STATIC_KEY_TRUE(sk_dynamic_preempt_schedule); 99cf983cc8bca4 Mark Rutland 2022-02-14 7452 void __sched notrace dynamic_preempt_schedule(void) 99cf983cc8bca4 Mark Rutland 2022-02-14 7453 { 99cf983cc8bca4 Mark Rutland 2022-02-14 7454 if (!static_branch_unlikely(&sk_dynamic_preempt_schedule)) 99cf983cc8bca4 Mark Rutland 2022-02-14 7455 return; 99cf983cc8bca4 Mark Rutland 2022-02-14 7456 preempt_schedule(); 99cf983cc8bca4 Mark Rutland 2022-02-14 7457 } 99cf983cc8bca4 Mark Rutland 2022-02-14 7458 NOKPROBE_SYMBOL(dynamic_preempt_schedule); 99cf983cc8bca4 Mark Rutland 2022-02-14 7459 EXPORT_SYMBOL(dynamic_preempt_schedule); 99cf983cc8bca4 Mark Rutland 2022-02-14 7460 # endif b7ebb758568b60 Ingo Molnar 2025-05-28 7461 #endif /* CONFIG_PREEMPT_DYNAMIC */ 2c9a98d3bc8087 Peter Zijlstra (Intel 2021-01-18 7462) :::::: The code at line 7449 was first introduced by commit :::::: ef72661e28c64ad610f89acc2832ec67b27ba438 sched: Harden PREEMPT_DYNAMIC :::::: TO: Peter Zijlstra <[email protected]> :::::: CC: Ingo Molnar <[email protected]> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
