[kbuild-all] [hch-block:dma-ranges.3 9/9] drivers/remoteproc/remoteproc_core.c:469:17: error: dereferencing pointer to incomplete type 'const struct bus_dma_region'

tree: git://git.infradead.org/users/hch/block.git dma-ranges.3 head: cbf6ef97bdb2a2ccc73ba09d2f6a744fe5423a52 commit: cbf6ef97bdb2a2ccc73ba09d2f6a744fe5423a52 [9/9] dma-mapping: introduce DMA range map, supplanting dma_pfn_offset config: powerpc-allyesconfig (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 cbf6ef97bdb2a2ccc73ba09d2f6a744fe5423a52 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/remoteproc/remoteproc_core.c: In function 'copy_dma_range_map': 469 | for (r = map; r->size; r++) | ^~ 469 | for (r = map; r->size; r++) | ^~ git remote add hch-block git://git.infradead.org/users/hch/block.git git fetch --no-tags hch-block dma-ranges.3 git checkout cbf6ef97bdb2a2ccc73ba09d2f6a744fe5423a52 vim +469 drivers/remoteproc/remoteproc_core.c 460 461 static int copy_dma_range_map(struct device *to, struct device *from) 462 { 463 const struct bus_dma_region *map = from->dma_range_map, *new_map, *r; 464 int num_ranges = 0; 465 466 if (!map) 467 return 0; 468 470 num_ranges++; 471 472 new_map = kmemdup(map, array_size(num_ranges + 1, sizeof(*map)), 473 GFP_KERNEL); 474 if (!new_map) 475 return -ENOMEM; 476 to->dma_range_map = new_map; 477 return 0; 478 } 479 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org