[hch-misc:dma-inline-remap.2 5/5] direct.c:undefined reference to `arch_dma_prep_coherent'

[hch-misc:dma-inline-remap.2 5/5] direct.c:undefined reference to `arch_dma_prep_coherent'

[kbuild test robot]

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tree:   git://git.infradead.org/users/hch/misc.git dma-inline-remap.2
head:   099575d1501796e13f502a8002489f150adf4f33
commit: 099575d1501796e13f502a8002489f150adf4f33 [5/5] openrisc: use the generic in-place uncached DMA allocator
config: openrisc-simple_smp_defconfig (attached as .config)
compiler: or1k-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 099575d1501796e13f502a8002489f150adf4f33
        # save the attached .config to linux build tree
        GCC_VERSION=9.2.0 make.cross ARCH=openrisc 

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

All errors (new ones prefixed by >>):

   or1k-linux-ld: kernel/dma/direct.o: in function `dma_direct_alloc_pages':
>> direct.c:(.text+0x95c): undefined reference to `arch_dma_prep_coherent'
   direct.c:(.text+0x95c): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `arch_dma_prep_coherent'
>> or1k-linux-ld: direct.c:(.text+0x9d4): undefined reference to `arch_dma_prep_coherent'
   direct.c:(.text+0x9d4): relocation truncated to fit: R_OR1K_INSN_REL_26 against undefined symbol `arch_dma_prep_coherent'

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

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