tree: https://github.com/omap-audio/linux-audio peter/linux-next-wip head: 0b053a09178c4bf6ca33fcea67aec032968d4410 commit: 924d565985f8e984c105f55c80de94704cded25a [22/92] misc: omap_video_vrfb test for dmaengine conversion HACK config: arm-allyesconfig (attached as .config) compiler: arm-linux-gnueabi-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 924d565985f8e984c105f55c80de94704cded25a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 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/misc/ovv_dmaengine.c: In function 'omap_vout_prepare_vrfb': 258 | omap_dma_set_global_params(DMA_DEFAULT_ARB_RATE, 0x20, 0); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ At top level: drivers/misc/ovv_dmaengine.c:148:13: warning: 'ovv_dump_50_item_from' defined but not used [-Wunused-function] 148 | static void ovv_dump_50_item_from(struct omap_vout_device *vout, int start) | ^~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/omap_dma_set_global_params +258 drivers/misc/ovv_dmaengine.c 206 207 static int omap_vout_prepare_vrfb(struct omap_vout_device *vout, 208 struct videobuf_buffer *vb) 209 { 210 dma_addr_t dmabuf; 211 struct vid_vrfb_dma *tx; 212 u32 dest_frame_index = 0, src_element_index = 0; 213 u32 dest_element_index = 0, src_frame_index = 0; 214 u32 elem_count = 0, frame_count = 0, pixsize = 2; 215 216 if (!is_rotation_enabled(vout)) 217 return 0; 218 219 dmabuf = vout->buf_phy_addr[vb->i]; 220 /* If rotation is enabled, copy input buffer into VRFB 221 * memory space using DMA. We are copying input buffer 222 * into VRFB memory space of desired angle and DSS will 223 * read image VRFB memory for 0 degree angle 224 */ 225 pixsize = vout->bpp * vout->vrfb_bpp; 226 /* 227 * DMA transfer in double index mode 228 */ 229 230 /* Frame index */ 231 dest_frame_index = ((MAX_PIXELS_PER_LINE * pixsize) - 232 (vout->pix.width * vout->bpp)) + 1; 233 234 /* Source and destination parameters */ 235 src_element_index = 0; 236 src_frame_index = 0; 237 dest_element_index = 1; 238 /* Number of elements per frame */ 239 elem_count = vout->pix.width * vout->bpp; 240 frame_count = vout->pix.height; 241 tx = &vout->vrfb_dma_tx; 242 tx->tx_status = 0; 243 omap_set_dma_transfer_params(tx->dma_ch, OMAP_DMA_DATA_TYPE_S32, 244 (elem_count / 4), frame_count, OMAP_DMA_SYNC_ELEMENT, 245 tx->dev_id, 0x0); 246 /* src_port required only for OMAP1 */ 247 omap_set_dma_src_params(tx->dma_ch, 0, OMAP_DMA_AMODE_POST_INC, 248 dmabuf, src_element_index, src_frame_index); 249 /*set dma source burst mode for VRFB */ 250 omap_set_dma_src_burst_mode(tx->dma_ch, OMAP_DMA_DATA_BURST_16); 251 252 /* dest_port required only for OMAP1 */ 253 omap_set_dma_dest_params(tx->dma_ch, 0, OMAP_DMA_AMODE_DOUBLE_IDX, 254 vout->vrfb_context[vb->i].paddr[0], dest_element_index, 255 dest_frame_index); 256 /*set dma dest burst mode for VRFB */ 257 omap_set_dma_dest_burst_mode(tx->dma_ch, OMAP_DMA_DATA_BURST_16); 259 260 omap_start_dma(tx->dma_ch); 261 wait_event_interruptible_timeout(tx->wait, tx->tx_status == 1, 262 VRFB_TX_TIMEOUT); 263 264 if (tx->tx_status == 0) { 265 omap_stop_dma(tx->dma_ch); 266 return -EINVAL; 267 } 268 269 return 0; 270 } 271 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org