[kbuild-all] [xilinx-xlnx:xlnx_rebase_v5.10 251/1980] drivers/gpu/drm/xlnx/xlnx_scaler.c:1394:21: warning: variable 'fmt_out' set but not used

tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.10 head: 568989d44176ae0a38ea78c16d0590c726d3b60a commit: 9c2aaea5d2da626727258703b85f52281b8673bb [251/1980] drm: xlnx: scaler: Adding vpss-scaler driver config: nds32-randconfig-r024-20210930 (attached as .config) compiler: nds32le-linux-gcc (GCC) 11.2.0 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 # https://github.com/Xilinx/linux-xlnx/commit/9c2aaea5d2da626727258703b85f5... git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.10 git checkout 9c2aaea5d2da626727258703b85f52281b8673bb # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=nds32 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/gpu/drm/xlnx/xlnx_scaler.c: In function 'xilinx_scaler_stream': 1394 | u32 fmt_in, fmt_out; | ^~~~~~~ 1394 | u32 fmt_in, fmt_out; | ^~~~~~ vim +/fmt_out +1394 drivers/gpu/drm/xlnx/xlnx_scaler.c 1383 1384 /** 1385 * xilinx_scaler_stream - Set up v-scaler and h-scaler for streaming 1386 * @scaler: Pointer to scaler device structure 1387 * 1388 * This function sets up the required configuration of v-scaler and h-scaler 1389 * 1390 * Return: 0 on success. Returns -EINVAL on failure conditions. 1391 */ 1392 static int xilinx_scaler_stream(struct xilinx_scaler *scaler) 1393 { 1395 u32 pixel_rate; 1396 u32 line_rate; 1397 int ret; 1398 1399 fmt_in = scaler->fmt_in; 1400 fmt_out = scaler->fmt_out; 1401 line_rate = (scaler->height_in * STEP_PRECISION) / scaler->height_out; 1402 1403 if (scaler->is_polyphase) { 1404 ret = xv_vscaler_select_coeff(scaler, scaler->height_in, 1405 scaler->height_out); 1406 if (ret < 0) { 1407 dev_info(scaler->dev, "Failed: vscaler select coeff\n"); 1408 return ret; 1409 } 1410 xv_vscaler_set_coeff(scaler); 1411 } 1412 xilinx_scaler_write(scaler->base, V_VSCALER_OFF + 1413 XV_VSCALER_CTRL_ADDR_HWREG_LINERATE_DATA, 1414 line_rate); 1415 ret = xv_vscaler_setup_video_fmt(scaler, scaler->fmt_in); 1416 if (ret < 0) { 1417 dev_info(scaler->dev, "Failed: vscaler setup video format\n"); 1418 return ret; 1419 } 1420 pixel_rate = (scaler->width_in * STEP_PRECISION) / scaler->width_out; 1421 xilinx_scaler_write(scaler->base, V_HSCALER_OFF + 1422 XV_HSCALER_CTRL_ADDR_HWREG_PIXELRATE_DATA, 1423 pixel_rate); 1424 ret = xv_hscaler_setup_video_fmt(scaler, scaler->fmt_out, ret); 1425 if (ret < 0) { 1426 dev_info(scaler->dev, "Failed: vscaler setup video format\n"); 1427 return ret; 1428 } 1429 if (scaler->is_polyphase) { 1430 ret = xv_hscaler_select_coeff(scaler, scaler->width_in, 1431 scaler->width_out); 1432 if (ret < 0) { 1433 dev_info(scaler->dev, "Failed: hscaler select coeff\n"); 1434 return ret; 1435 } 1436 xv_hscaler_set_coeff(scaler); 1437 } 1438 xv_hscaler_calculate_phases(scaler, scaler->width_in, 1439 scaler->width_out, pixel_rate); 1440 xv_hscaler_set_phases(scaler); 1441 return 0; 1442 } 1443 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org