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SubjectRe: [PATCH V6 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-rc6 next-20170623]
[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-hotplug-Ensure-enough-nodes-avail-for-operations/20170621-141803
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-storcenter_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:85:12: 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 +85 arch/powerpc/include/asm/topology.h

79 #endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */
80
81 #if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR) && \
82 defined(CONFIG_HOTPLUG_CPU)
83 extern int timed_topology_update(int nsecs);
84 #else
> 85 static int timed_topology_update(int nsecs)
86 {
87 return 0;
88 }

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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