Hi Mark, Thank you for the patch! Yet something to improve: [auto build test ERROR on linuxtv-media/master] [also build test ERROR on v5.3-rc1 next-20190726] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Mark-Balantzyan/media-input-infrastructure-tw686x-Added-Added-custom-function-to-set-vdev-release-in-tw686x-driver/20190727-005525 base: git://linuxtv.org/media_tree.git master config: mips-allmodconfig (attached as .config) compiler: mips-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=mips If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): drivers/media/pci/tw686x/tw686x-video.c: In function 'tw686x_video_device_release': drivers/media/pci/tw686x/tw686x-video.c:1156:14: warning: statement with no effect [-Wunused-value] dev->dma_ops->free; ~~~~~~~~~~~~^~~~~~ drivers/media/pci/tw686x/tw686x-video.c:1154:32: warning: unused variable 'vc' [-Wunused-variable] struct tw686x_video_channel *vc = &dev->video_channels[ch]; ^~ drivers/media/pci/tw686x/tw686x-video.c: In function 'tw686x_video_free': drivers/media/pci/tw686x/tw686x-video.c:1164:19: warning: unused variable 'pb' [-Wunused-variable] unsigned int ch, pb; ^~ drivers/media/pci/tw686x/tw686x-video.c: In function 'tw686x_video_device_release': >> drivers/media/pci/tw686x/tw686x-video.c:1162:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] void tw686x_video_free(struct tw686x_dev *dev) ^~~~ drivers/media/pci/tw686x/tw686x-video.c: In function 'tw686x_video_init': >> drivers/media/pci/tw686x/tw686x-video.c:1285:17: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types] vdev->release = tw686x_video_device_release; ^ drivers/media/pci/tw686x/tw686x-video.c: In function 'tw686x_video_device_release': >> drivers/media/pci/tw686x/tw686x-video.c:1321:1: error: expected declaration or statement at end of input } ^ drivers/media/pci/tw686x/tw686x-video.c:1151:19: warning: unused variable 'pb' [-Wunused-variable] unsigned int ch, pb; ^~ At top level: drivers/media/pci/tw686x/tw686x-video.c:1174:5: warning: 'tw686x_video_init' defined but not used [-Wunused-function] int tw686x_video_init(struct tw686x_dev *dev) ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +1285 drivers/media/pci/tw686x/tw686x-video.c 1146 1147 1148 1149 void tw686x_video_device_release(struct tw686x_video_channel *vc) { 1150 struct tw686x_dev *dev = vc->dev; 1151 unsigned int ch, pb; 1152 1153 for (ch = 0; ch < max_channels(dev); ch++) { > 1154 struct tw686x_video_channel *vc = &dev->video_channels[ch]; 1155 1156 dev->dma_ops->free; 1157 1158 video_device_release((struct video_device*)dev); 1159 1160 } 1161 > 1162 void tw686x_video_free(struct tw686x_dev *dev) 1163 { > 1164 unsigned int ch, pb; 1165 1166 for (ch = 0; ch < max_channels(dev); ch++) { 1167 struct tw686x_video_channel *vc = &dev->video_channels[ch]; 1168 1169 video_unregister_device(vc->device); 1170 1171 } 1172 } 1173 1174 int tw686x_video_init(struct tw686x_dev *dev) 1175 { 1176 unsigned int ch, val; 1177 int err; 1178 1179 if (dev->dma_mode == TW686X_DMA_MODE_MEMCPY) 1180 dev->dma_ops = &memcpy_dma_ops; 1181 else if (dev->dma_mode == TW686X_DMA_MODE_CONTIG) 1182 dev->dma_ops = &contig_dma_ops; 1183 else if (dev->dma_mode == TW686X_DMA_MODE_SG) 1184 dev->dma_ops = &sg_dma_ops; 1185 else 1186 return -EINVAL; 1187 1188 err = v4l2_device_register(&dev->pci_dev->dev, &dev->v4l2_dev); 1189 if (err) 1190 return err; 1191 1192 if (dev->dma_ops->setup) { 1193 err = dev->dma_ops->setup(dev); 1194 if (err) 1195 return err; 1196 } 1197 1198 /* Initialize vc->dev and vc->ch for the error path */ 1199 for (ch = 0; ch < max_channels(dev); ch++) { 1200 struct tw686x_video_channel *vc = &dev->video_channels[ch]; 1201 1202 vc->dev = dev; 1203 vc->ch = ch; 1204 } 1205 1206 for (ch = 0; ch < max_channels(dev); ch++) { 1207 struct tw686x_video_channel *vc = &dev->video_channels[ch]; 1208 struct video_device *vdev; 1209 1210 mutex_init(&vc->vb_mutex); 1211 spin_lock_init(&vc->qlock); 1212 INIT_LIST_HEAD(&vc->vidq_queued); 1213 1214 /* default settings */ 1215 err = tw686x_set_standard(vc, V4L2_STD_NTSC); 1216 if (err) 1217 goto error; 1218 1219 err = tw686x_set_format(vc, formats[0].fourcc, 1220 TW686X_VIDEO_WIDTH, 1221 TW686X_VIDEO_HEIGHT(vc->video_standard), 1222 true); 1223 if (err) 1224 goto error; 1225 1226 tw686x_set_input(vc, 0); 1227 tw686x_set_framerate(vc, 30); 1228 reg_write(dev, VDELAY_LO[ch], 0x14); 1229 reg_write(dev, HACTIVE_LO[ch], 0xd0); 1230 reg_write(dev, VIDEO_SIZE[ch], 0); 1231 1232 vc->vidq.io_modes = VB2_READ | VB2_MMAP | VB2_DMABUF; 1233 vc->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1234 vc->vidq.drv_priv = vc; 1235 vc->vidq.buf_struct_size = sizeof(struct tw686x_v4l2_buf); 1236 vc->vidq.ops = &tw686x_video_qops; 1237 vc->vidq.mem_ops = dev->dma_ops->mem_ops; 1238 vc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1239 vc->vidq.min_buffers_needed = 2; 1240 vc->vidq.lock = &vc->vb_mutex; 1241 vc->vidq.gfp_flags = dev->dma_mode != TW686X_DMA_MODE_MEMCPY ? 1242 GFP_DMA32 : 0; 1243 vc->vidq.dev = &dev->pci_dev->dev; 1244 1245 err = vb2_queue_init(&vc->vidq); 1246 if (err) { 1247 v4l2_err(&dev->v4l2_dev, 1248 "dma%d: cannot init vb2 queue\n", ch); 1249 goto error; 1250 } 1251 1252 err = v4l2_ctrl_handler_init(&vc->ctrl_handler, 4); 1253 if (err) { 1254 v4l2_err(&dev->v4l2_dev, 1255 "dma%d: cannot init ctrl handler\n", ch); 1256 goto error; 1257 } 1258 v4l2_ctrl_new_std(&vc->ctrl_handler, &ctrl_ops, 1259 V4L2_CID_BRIGHTNESS, -128, 127, 1, 0); 1260 v4l2_ctrl_new_std(&vc->ctrl_handler, &ctrl_ops, 1261 V4L2_CID_CONTRAST, 0, 255, 1, 100); 1262 v4l2_ctrl_new_std(&vc->ctrl_handler, &ctrl_ops, 1263 V4L2_CID_SATURATION, 0, 255, 1, 128); 1264 v4l2_ctrl_new_std(&vc->ctrl_handler, &ctrl_ops, 1265 V4L2_CID_HUE, -128, 127, 1, 0); 1266 err = vc->ctrl_handler.error; 1267 if (err) 1268 goto error; 1269 1270 err = v4l2_ctrl_handler_setup(&vc->ctrl_handler); 1271 if (err) 1272 goto error; 1273 1274 vdev = video_device_alloc(); 1275 if (!vdev) { 1276 v4l2_err(&dev->v4l2_dev, 1277 "dma%d: unable to allocate device\n", ch); 1278 err = -ENOMEM; 1279 goto error; 1280 } 1281 1282 snprintf(vdev->name, sizeof(vdev->name), "%s video", dev->name); 1283 vdev->fops = &tw686x_video_fops; 1284 vdev->ioctl_ops = &tw686x_video_ioctl_ops; > 1285 vdev->release = tw686x_video_device_release; 1286 vdev->v4l2_dev = &dev->v4l2_dev; 1287 vdev->queue = &vc->vidq; 1288 vdev->tvnorms = V4L2_STD_525_60 | V4L2_STD_625_50; 1289 vdev->minor = -1; 1290 vdev->lock = &vc->vb_mutex; 1291 vdev->ctrl_handler = &vc->ctrl_handler; 1292 vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | 1293 V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; 1294 vc->device = vdev; 1295 video_set_drvdata(vdev, vc); 1296 1297 err = video_register_device(vdev, VFL_TYPE_GRABBER, -1); 1298 if (err < 0) 1299 goto error; 1300 vc->num = vdev->num; 1301 } 1302 1303 val = TW686X_DEF_PHASE_REF; 1304 for (ch = 0; ch < max_channels(dev); ch++) 1305 val |= dev->dma_ops->hw_dma_mode << (16 + ch * 2); 1306 reg_write(dev, PHASE_REF, val); 1307 1308 reg_write(dev, MISC2[0], 0xe7); 1309 reg_write(dev, VCTRL1[0], 0xcc); 1310 reg_write(dev, LOOP[0], 0xa5); 1311 if (max_channels(dev) > 4) { 1312 reg_write(dev, VCTRL1[1], 0xcc); 1313 reg_write(dev, LOOP[1], 0xa5); 1314 reg_write(dev, MISC2[1], 0xe7); 1315 } 1316 return 0; 1317 1318 error: 1319 tw686x_video_free(dev); 1320 return err; > 1321 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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