Hi Paolo, [auto build test ERROR on tip/x86/core] [also build test ERROR on v4.8-rc5 next-20160906] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] [Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on] [Check https://git-scm.com/docs/git-format-patch for more information] url: https://github.com/0day-ci/linux/commits/Paolo-Bonzini/if-running-under-KVM-use-kvmclock-to-compute-TSC-deadline-value/20160907-131553 config: i386-defconfig (attached as .config) compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): arch/x86/kernel/apic/apic.c: In function 'smp_apic_timer_interrupt': >> arch/x86/kernel/apic/apic.c:931:2: error: implicit declaration of function 'local_apic_timer_interrupt' [-Werror=implicit-function-declaration] local_apic_timer_interrupt(); ^~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/local_apic_timer_interrupt +931 arch/x86/kernel/apic/apic.c eddc0e92 arch/x86/kernel/apic/apic.c Seiji Aguchi 2013-06-20 925 * 0e078e2f arch/x86/kernel/apic_64.c Thomas Gleixner 2008-01-30 926 * update_process_times() expects us to have done irq_enter(). 0e078e2f arch/x86/kernel/apic_64.c Thomas Gleixner 2008-01-30 927 * Besides, if we don't timer interrupts ignore the global 0e078e2f arch/x86/kernel/apic_64.c Thomas Gleixner 2008-01-30 928 * interrupt lock, which is the WrongThing (tm) to do. 0e078e2f arch/x86/kernel/apic_64.c Thomas Gleixner 2008-01-30 929 */ eddc0e92 arch/x86/kernel/apic/apic.c Seiji Aguchi 2013-06-20 930 entering_ack_irq(); 0e078e2f arch/x86/kernel/apic_64.c Thomas Gleixner 2008-01-30 @931 local_apic_timer_interrupt(); eddc0e92 arch/x86/kernel/apic/apic.c Seiji Aguchi 2013-06-20 932 exiting_irq(); 274cfe59 arch/x86/kernel/apic_64.c Cyrill Gorcunov 2008-08-16 933 0e078e2f arch/x86/kernel/apic_64.c Thomas Gleixner 2008-01-30 934 set_irq_regs(old_regs); :::::: The code at line 931 was first introduced by commit :::::: 0e078e2f5060e06f9b3f32e55665ea835343440e x86: prepare merging arch/x86/kernel/apic_32/64.c :::::: TO: Thomas Gleixner <tglx@xxxxxxxxxxxxx> :::::: CC: Ingo Molnar <mingo@xxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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