linux-kernel - Re: [PATCH V5 2/2] powerpc/numa: Update CPU topology when VPHN enabled

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Message-ID: <201706191026.jZKxb16H%fengguang.wu@intel.com>
Date:   Mon, 19 Jun 2017 10:46:19 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Michael Bringmann <mwb@...ux.vnet.ibm.com>
Cc:     kbuild-all@...org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Reza Arbab <arbab@...ux.vnet.ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Bharata B Rao <bharata@...ux.vnet.ibm.com>,
        Balbir Singh <bsingharora@...il.com>,
        Michael Bringmann <mwb@...ux.vnet.ibm.com>,
        Shailendra Singh <shailendras@...dia.com>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Nathan Fontenot <nfont@...ux.vnet.ibm.com>,
        Andrew Donnellan <andrew.donnellan@....ibm.com>,
        John Allen <jallen@...ux.vnet.ibm.com>,
        Tyrel Datwyler <tyreld@...ux.vnet.ibm.com>,
        Sahil Mehta <sahilmehta17@...il.com>,
        Rashmica Gupta <rashmicy@...il.com>,
        Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH V5 2/2] powerpc/numa: Update CPU topology when VPHN
 enabled

Hi Michael,

[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.12-rc5 next-20170616]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Michael-Bringmann/powerpc-dlpar-Correct-display-of-hot-add-hot-remove-CPUs-and-memory/20170619-081809
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-ksi8560_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   In file included from include/linux/topology.h:35:0,
                    from include/linux/gfp.h:8,
                    from include/linux/idr.h:16,
                    from include/linux/kernfs.h:14,
                    from include/linux/sysfs.h:15,
                    from include/linux/kobject.h:21,
                    from include/linux/of.h:21,
                    from include/linux/irqdomain.h:34,
                    from arch/powerpc/include/asm/irq.h:12,
                    from arch/powerpc/include/asm/prom.h:19,
                    from arch/powerpc/kernel/cputable.c:22:
>> arch/powerpc/include/asm/topology.h:76:12: error: 'timed_topology_update' defined but not used [-Werror=unused-function]
    static int timed_topology_update(int nsecs)
               ^~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +/timed_topology_update +76 arch/powerpc/include/asm/topology.h

    70		return 0;
    71	}
    72	static inline int stop_topology_update(void)
    73	{
    74		return 0;
    75	}
  > 76	static int timed_topology_update(int nsecs)
    77	{
    78		return 0;
    79	}

---
0-DAY kernel test infrastructure                Open Source Technology Center
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