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Subjectpowerpc64-linux-ld: mm/page_alloc.o:undefined reference to `node_reclaim_distance'
Hi Matt,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 1127b219ce9481c84edad9711626d856127d5e51
commit: a55c7454a8c887b226a01d7eed088ccb5374d81e sched/topology: Improve load balancing on AMD EPYC systems
date: 12 months ago
config: powerpc64-randconfig-c003-20200831 (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout a55c7454a8c887b226a01d7eed088ccb5374d81e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash'
powerpc64-linux-ld: arch/powerpc/perf/perf_regs.o: in function `perf_reg_value':
arch/powerpc/perf/perf_regs.c:80: undefined reference to `.is_sier_available'
>> powerpc64-linux-ld: mm/page_alloc.o:(.toc+0x0): undefined reference to `node_reclaim_distance'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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