tree: https://github.com/0day-ci/linux/commits/UPDATE-20200920-025817/Jonathan-... head: 6a6ef0b16bd098b9a4950b5d17fa46bda1edea31 commit: 6a6ef0b16bd098b9a4950b5d17fa46bda1edea31 [1/1] dmaengine: qcom: Add ADM driver config: arc-allyesconfig (attached as .config) compiler: arceb-elf-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 6a6ef0b16bd098b9a4950b5d17fa46bda1edea31 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 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/dma/qcom/qcom_adm.c: In function 'adm_process_fc_descriptors': 240 | src = &achan->slave.src_addr; | ^ drivers/dma/qcom/qcom_adm.c:246:7: error: assignment to 'u32 *' {aka 'unsigned int *'} from incompatible pointer type 'phys_addr_t *' {aka 'long long unsigned int *'} [-Werror=incompatible-pointer-types] 246 | dst = &achan->slave.dst_addr; | ^ drivers/dma/qcom/qcom_adm.c: In function 'adm_process_non_fc_descriptors': drivers/dma/qcom/qcom_adm.c:304:7: error: assignment to 'u32 *' {aka 'unsigned int *'} from incompatible pointer type 'phys_addr_t *' {aka 'long long unsigned int *'} [-Werror=incompatible-pointer-types] 304 | src = &achan->slave.src_addr; | ^ drivers/dma/qcom/qcom_adm.c:308:7: error: assignment to 'u32 *' {aka 'unsigned int *'} from incompatible pointer type 'phys_addr_t *' {aka 'long long unsigned int *'} [-Werror=incompatible-pointer-types] 308 | dst = &achan->slave.dst_addr; | ^ cc1: some warnings being treated as errors # https://github.com/0day-ci/linux/commit/6a6ef0b16bd098b9a4950b5d17fa46bda... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review UPDATE-20200920-025817/Jonathan-McDowell/dmaengine-qcom-Add-ADM-driver/20200916-144457 git checkout 6a6ef0b16bd098b9a4950b5d17fa46bda1edea31 vim +240 drivers/dma/qcom/qcom_adm.c 213 214 /** 215 * adm_process_fc_descriptors - Process descriptors for flow controlled xfers 216 * 217 * @achan: ADM channel 218 * @desc: Descriptor memory pointer 219 * @sg: Scatterlist entry 220 * @crci: CRCI value 221 * @burst: Burst size of transaction 222 * @direction: DMA transfer direction 223 */ 224 static void *adm_process_fc_descriptors(struct adm_chan *achan, void *desc, 225 struct scatterlist *sg, u32 crci, 226 u32 burst, 227 enum dma_transfer_direction direction) 228 { 229 struct adm_desc_hw_box *box_desc = NULL; 230 struct adm_desc_hw_single *single_desc; 231 u32 remainder = sg_dma_len(sg); 232 u32 rows, row_offset, crci_cmd; 233 u32 mem_addr = sg_dma_address(sg); 234 u32 *incr_addr = &mem_addr; 235 u32 *src, *dst; 236 237 if (direction == DMA_DEV_TO_MEM) { 238 crci_cmd = ADM_CMD_SRC_CRCI(crci); 239 row_offset = burst; 241 dst = &mem_addr; 242 } else { 243 crci_cmd = ADM_CMD_DST_CRCI(crci); 244 row_offset = burst << 16; 245 src = &mem_addr; 246 dst = &achan->slave.dst_addr; 247 } 248 249 while (remainder >= burst) { 250 box_desc = desc; 251 box_desc->cmd = ADM_CMD_TYPE_BOX | crci_cmd; 252 box_desc->row_offset = row_offset; 253 box_desc->src_addr = *src; 254 box_desc->dst_addr = *dst; 255 256 rows = remainder / burst; 257 rows = min_t(u32, rows, ADM_MAX_ROWS); 258 box_desc->num_rows = rows << 16 | rows; 259 box_desc->row_len = burst << 16 | burst; 260 261 *incr_addr += burst * rows; 262 remainder -= burst * rows; 263 desc += sizeof(*box_desc); 264 } 265 266 /* if leftover bytes, do one single descriptor */ 267 if (remainder) { 268 single_desc = desc; 269 single_desc->cmd = ADM_CMD_TYPE_SINGLE | crci_cmd; 270 single_desc->len = remainder; 271 single_desc->src_addr = *src; 272 single_desc->dst_addr = *dst; 273 desc += sizeof(*single_desc); 274 275 if (sg_is_last(sg)) 276 single_desc->cmd |= ADM_CMD_LC; 277 } else { 278 if (box_desc && sg_is_last(sg)) 279 box_desc->cmd |= ADM_CMD_LC; 280 } 281 282 return desc; 283 } 284 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org