tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2019.08.01a head: 00ec8f46465e07c72f2813cc346f6e7e8749ea98 commit: 6be4d76acd32067ca7cf6d0733cbb8fbffa6d183 [47/113] idle: Prevent late-arriving interrupts from disrupting offline config: x86_64-rhel (attached as .config) compiler: gcc-7 (Debian 7.4.0-10) 7.4.0 reproduce: git checkout 6be4d76acd32067ca7cf6d0733cbb8fbffa6d183 # save the attached .config to linux build tree make ARCH=x86_64
If you fix the issue, kindly add following tag Reported-by: kbuild test robot <[email protected]> All errors (new ones prefixed by >>): arch/x86/xen/smp_pv.c: In function 'xen_pv_play_dead': >> arch/x86/xen/smp_pv.c:439:2: error: implicit declaration of function >> 'tick_nohz_idle_stop_tick_protected'; did you mean >> 'tick_nohz_idle_stop_tick'? [-Werror=implicit-function-declaration] tick_nohz_idle_stop_tick_protected(); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ tick_nohz_idle_stop_tick cc1: some warnings being treated as errors vim +439 arch/x86/xen/smp_pv.c 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 426 8cb6de390096b2 Vitaly Kuznetsov 2017-03-14 427 static void xen_pv_play_dead(void) /* used only with HOTPLUG_CPU */ 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 428 { 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 429 play_dead_common(); 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 430 HYPERVISOR_vcpu_op(VCPUOP_down, xen_vcpu_nr(smp_processor_id()), NULL); 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 431 cpu_bringup(); 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 432 /* 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 433 * commit 4b0c0f294 (tick: Cleanup NOHZ per cpu data on cpu down) 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 434 * clears certain data that the cpu_idle loop (which called us 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 435 * and that we return from) expects. The only way to get that 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 436 * data back is to call: 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 437 */ 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 438 tick_nohz_idle_enter(); 0e7767687fdabf Rafael J. Wysocki 2018-04-05 @439 tick_nohz_idle_stop_tick_protected(); 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 440 c185ddec54657c Juergen Gross 2017-07-05 441 cpuhp_online_idle(CPUHP_AP_ONLINE_IDLE); 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 442 } 83b96794e0ea97 Vitaly Kuznetsov 2017-03-14 443 :::::: The code at line 439 was first introduced by commit :::::: 0e7767687fdabfc58d5046e7488632bf2ecd4d0c time: tick-sched: Reorganize idle tick management code :::::: TO: Rafael J. Wysocki <[email protected]> :::::: CC: Rafael J. Wysocki <[email protected]> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
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