tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/mm
head:   7ccd25bd603f0d08a967467f8d676e2263382506
commit: 7acc8323e483d980de07ff2e4c4906cc3e77d59c [32/33] mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions
config: c6x-evmc6678_defconfig (attached as .config)
compiler: c6x-elf-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 7acc8323e483d980de07ff2e4c4906cc3e77d59c
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=c6x 

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

All errors (new ones prefixed by >>):

   mm/percpu.o: In function `per_cpu_ptr_to_phys':
>> percpu.c:(.text+0x2760): undefined reference to `is_vmalloc_addr'
   block/bio.o: In function `bio_map_kern':
>> bio.c:(.text+0x2d88): undefined reference to `is_vmalloc_addr'
   kernel/iomem.o: In function `memunmap':
>> iomem.c:(.text+0x14): undefined reference to `is_vmalloc_addr'
   kernel/iomem.o: In function `devm_memremap_release':
   iomem.c:(.text+0x30): undefined reference to `is_vmalloc_addr'
   mm/util.o: In function `kvfree':
>> util.c:(.text+0x774): undefined reference to `is_vmalloc_addr'

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