linux-kernel - Re: [PATCH 1/2] x86: paravirt: add local_apic_timer_interrupt to pv

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Message-ID: <201609071451.P4TrJMwN%fengguang.wu@intel.com>
Date:   Wed, 7 Sep 2016 14:25:09 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, rkrcmar@...hat.com, dmatlack@...gle.com,
        luto@...nel.org, peterhornyack@...gle.com, x86@...nel.org
Subject: Re: [PATCH 1/2] x86: paravirt: add local_apic_timer_interrupt to
 pv_ops

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@...utronix.de>
:::::: CC: Ingo Molnar <mingo@...e.hu>

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