tree:   https://github.com/hnaz/linux-mm master
head:   0dfe7dcb04cda279a080d3f1d421c37a8a2f6158
commit: 71d3242bd7dcb73d01621ebac97a93aea78a98f1 [381/447] a
config: powerpc-defconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 71d3242bd7dcb73d01621ebac97a93aea78a98f1
        # save the attached .config to linux build tree
        GCC_VERSION=9.2.0 make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag
Reported-by: kbuild 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/platforms/powermac/setup.o: in function `.pmac_power_off':
>> setup.c:(.text+0x6c): undefined reference to `.pmu_shutdown'
   powerpc64-linux-ld: arch/powerpc/platforms/powermac/setup.o: in function `.pmac_restart':
>> setup.c:(.text+0xdc): undefined reference to `.pmu_restart'
   powerpc64-linux-ld: arch/powerpc/platforms/powermac/setup.o: in function `.pmac_setup_arch':
>> setup.c:(.init.text+0x428): undefined reference to `.find_via_pmu'
   powerpc64-linux-ld: arch/powerpc/platforms/powermac/time.o: in function `.pmac_get_boot_time':
>> time.c:(.text+0x90): undefined reference to `.pmu_get_time'
   powerpc64-linux-ld: arch/powerpc/platforms/powermac/time.o: in function `.pmac_get_rtc_time':
   time.c:(.text+0x120): undefined reference to `.pmu_get_time'
   powerpc64-linux-ld: arch/powerpc/platforms/powermac/time.o: in function `.pmac_set_rtc_time':
>> time.c:(.text+0x1b4): undefined reference to `.pmu_set_rtc_time'
   powerpc64-linux-ld: arch/powerpc/platforms/powermac/low_i2c.o: in function `.pmu_i2c_xfer':
>> low_i2c.c:(.text+0xf04): undefined reference to `.pmu_queue_request'
   powerpc64-linux-ld: low_i2c.c:(.text+0xfc0): undefined reference to `.pmu_queue_request'
   powerpc64-linux-ld: arch/powerpc/platforms/powermac/low_i2c.o: in function `.pmac_i2c_init':
>> low_i2c.c:(.init.text+0x720): undefined reference to `.pmu_present'
   powerpc64-linux-ld: arch/powerpc/platforms/powermac/udbg_adb.o: in function `.udbg_adb_getc_poll':
>> udbg_adb.c:(.text+0xe0): undefined reference to `.pmu_poll_adb'
   powerpc64-linux-ld: arch/powerpc/platforms/powermac/udbg_adb.o: in function `.udbg_adb_getc':
   udbg_adb.c:(.text+0x254): undefined reference to `.pmu_poll_adb'
   powerpc64-linux-ld: arch/powerpc/platforms/powermac/udbg_adb.o: in function `.udbg_adb_init':
>> udbg_adb.c:(.init.text+0x208): undefined reference to `.find_via_pmu'
   powerpc64-linux-ld: drivers/macintosh/via-pmu-event.o: in function `.via_pmu_event_init':
   via-pmu-event.c:(.init.text+0x20): undefined reference to `.pmu_get_model'

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