Hi Christoph, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: dea8dcf2a9fa8cc540136a6cd885c3beece16ec3 commit: 7bc5c428a660d4d1bc95ba54bf4cb6bccf8c3029 dma-direct: remove __dma_to_phys date: 4 months ago config: mips-randconfig-s031-20201220 (attached as .config) compiler: mips64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-184-g1b896707-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7bc5c428a660d4d1bc95ba54bf4cb6bccf8c3029 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 7bc5c428a660d4d1bc95ba54bf4cb6bccf8c3029 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): mips64-linux-ld: kernel/dma/mapping.o: in function `dma_map_page_attrs': mapping.c:(.text+0x108): undefined reference to `__phys_to_dma' mips64-linux-ld: kernel/dma/mapping.o: in function `dma_unmap_page_attrs': >> mapping.c:(.text+0x24c): undefined reference to `dma_to_phys' >> mips64-linux-ld: mapping.c:(.text+0x28c): undefined reference to >> `dma_to_phys' mips64-linux-ld: kernel/dma/mapping.o: in function `dma_sync_single_for_cpu': mapping.c:(.text+0x490): undefined reference to `dma_to_phys' mips64-linux-ld: kernel/dma/mapping.o: in function `dma_sync_single_for_device': mapping.c:(.text+0x4f0): undefined reference to `dma_to_phys' mips64-linux-ld: kernel/dma/direct.o: in function `dma_direct_get_required_mask': direct.c:(.text+0xb4): undefined reference to `__phys_to_dma' mips64-linux-ld: kernel/dma/direct.o: in function `dma_direct_alloc': >> direct.c:(.text+0x1dc): undefined reference to `dma_to_phys' mips64-linux-ld: direct.c:(.text+0x2bc): undefined reference to `__phys_to_dma' mips64-linux-ld: direct.c:(.text+0x398): undefined reference to `__phys_to_dma' >> mips64-linux-ld: direct.c:(.text+0x428): undefined reference to `dma_to_phys' mips64-linux-ld: kernel/dma/direct.o: in function `dma_direct_free': direct.c:(.text+0x55c): undefined reference to `dma_to_phys' mips64-linux-ld: kernel/dma/direct.o: in function `dma_direct_map_sg': direct.c:(.text+0x69c): undefined reference to `__phys_to_dma' mips64-linux-ld: kernel/dma/direct.o: in function `dma_direct_get_sgtable': direct.c:(.text+0x8c8): undefined reference to `dma_to_phys' mips64-linux-ld: kernel/dma/direct.o: in function `dma_direct_mmap': direct.c:(.text+0x9cc): undefined reference to `dma_to_phys' mips64-linux-ld: kernel/dma/direct.o: in function `dma_direct_supported': direct.c:(.text+0xaa8): undefined reference to `__phys_to_dma' mips64-linux-ld: kernel/dma/direct.o: in function `dma_direct_need_sync': direct.c:(.text+0xad8): undefined reference to `dma_to_phys' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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