Hi Maxime, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1abd8a8f39cd9a2925149000056494523c85643a commit: 1fc3b37f34f69ee3fd61ca624fc005fb0bfe3984 media: v4l: cadence: Add Cadence MIPI-CSI2 RX driver date: 5 weeks ago config: x86_64-randconfig-s4-06211558 (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: git checkout 1fc3b37f34f69ee3fd61ca624fc005fb0bfe3984 # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/media/platform/cadence/cdns-csi2rx.c: In function 'csi2rx_probe': >> drivers/media/platform/cadence/cdns-csi2rx.c:421:11: error: implicit declaration of function 'kzalloc'; did you mean 'vzalloc'? [-Werror=implicit-function-declaration] csi2rx = kzalloc(sizeof(*csi2rx), GFP_KERNEL); ^~~~~~~ vzalloc drivers/media/platform/cadence/cdns-csi2rx.c:421:9: warning: assignment makes pointer from integer without a cast [-Wint-conversion] csi2rx = kzalloc(sizeof(*csi2rx), GFP_KERNEL); ^ >> drivers/media/platform/cadence/cdns-csi2rx.c:466:2: error: implicit declaration of function 'kfree'; did you mean 'vfree'? [-Werror=implicit-function-declaration] kfree(csi2rx); ^~~~~ vfree cc1: some warnings being treated as errors vim +421 drivers/media/platform/cadence/cdns-csi2rx.c 414 415 static int csi2rx_probe(struct platform_device *pdev) 416 { 417 struct csi2rx_priv *csi2rx; 418 unsigned int i; 419 int ret; 420 > 421 csi2rx = kzalloc(sizeof(*csi2rx), GFP_KERNEL); 422 if (!csi2rx) 423 return -ENOMEM; 424 platform_set_drvdata(pdev, csi2rx); 425 csi2rx->dev = &pdev->dev; 426 mutex_init(&csi2rx->lock); 427 428 ret = csi2rx_get_resources(csi2rx, pdev); 429 if (ret) 430 goto err_free_priv; 431 432 ret = csi2rx_parse_dt(csi2rx); 433 if (ret) 434 goto err_free_priv; 435 436 csi2rx->subdev.owner = THIS_MODULE; 437 csi2rx->subdev.dev = &pdev->dev; 438 v4l2_subdev_init(&csi2rx->subdev, &csi2rx_subdev_ops); 439 v4l2_set_subdevdata(&csi2rx->subdev, &pdev->dev); 440 snprintf(csi2rx->subdev.name, V4L2_SUBDEV_NAME_SIZE, "%s.%s", 441 KBUILD_MODNAME, dev_name(&pdev->dev)); 442 443 /* Create our media pads */ 444 csi2rx->subdev.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE; 445 csi2rx->pads[CSI2RX_PAD_SINK].flags = MEDIA_PAD_FL_SINK; 446 for (i = CSI2RX_PAD_SOURCE_STREAM0; i < CSI2RX_PAD_MAX; i++) 447 csi2rx->pads[i].flags = MEDIA_PAD_FL_SOURCE; 448 449 ret = media_entity_pads_init(&csi2rx->subdev.entity, CSI2RX_PAD_MAX, 450 csi2rx->pads); 451 if (ret) 452 goto err_free_priv; 453 454 ret = v4l2_async_register_subdev(&csi2rx->subdev); 455 if (ret < 0) 456 goto err_free_priv; 457 458 dev_info(&pdev->dev, 459 "Probed CSI2RX with %u/%u lanes, %u streams, %s D-PHY\n", 460 csi2rx->num_lanes, csi2rx->max_lanes, csi2rx->max_streams, 461 csi2rx->has_internal_dphy ? "internal" : "no"); 462 463 return 0; 464 465 err_free_priv: > 466 kfree(csi2rx); 467 return ret; 468 } 469 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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