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: 6f684d4fcce5eddd7e216a18975fb798d11a83dd media: v4l: cadence: Add Cadence MIPI-CSI2 TX 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 6f684d4fcce5eddd7e216a18975fb798d11a83dd # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/media/platform/cadence/cdns-csi2tx.c: In function 'csi2tx_probe': >> drivers/media/platform/cadence/cdns-csi2tx.c:477:11: error: implicit declaration of function 'kzalloc'; did you mean 'vzalloc'? [-Werror=implicit-function-declaration] csi2tx = kzalloc(sizeof(*csi2tx), GFP_KERNEL); ^~~~~~~ vzalloc drivers/media/platform/cadence/cdns-csi2tx.c:477:9: warning: assignment makes pointer from integer without a cast [-Wint-conversion] csi2tx = kzalloc(sizeof(*csi2tx), GFP_KERNEL); ^ >> drivers/media/platform/cadence/cdns-csi2tx.c:531:2: error: implicit declaration of function 'kfree'; did you mean 'vfree'? [-Werror=implicit-function-declaration] kfree(csi2tx); ^~~~~ vfree cc1: some warnings being treated as errors vim +477 drivers/media/platform/cadence/cdns-csi2tx.c 470 471 static int csi2tx_probe(struct platform_device *pdev) 472 { 473 struct csi2tx_priv *csi2tx; 474 unsigned int i; 475 int ret; 476 > 477 csi2tx = kzalloc(sizeof(*csi2tx), GFP_KERNEL); 478 if (!csi2tx) 479 return -ENOMEM; 480 platform_set_drvdata(pdev, csi2tx); 481 mutex_init(&csi2tx->lock); 482 csi2tx->dev = &pdev->dev; 483 484 ret = csi2tx_get_resources(csi2tx, pdev); 485 if (ret) 486 goto err_free_priv; 487 488 v4l2_subdev_init(&csi2tx->subdev, &csi2tx_subdev_ops); 489 csi2tx->subdev.owner = THIS_MODULE; 490 csi2tx->subdev.dev = &pdev->dev; 491 csi2tx->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; 492 snprintf(csi2tx->subdev.name, V4L2_SUBDEV_NAME_SIZE, "%s.%s", 493 KBUILD_MODNAME, dev_name(&pdev->dev)); 494 495 ret = csi2tx_check_lanes(csi2tx); 496 if (ret) 497 goto err_free_priv; 498 499 /* Create our media pads */ 500 csi2tx->subdev.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE; 501 csi2tx->pads[CSI2TX_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; 502 for (i = CSI2TX_PAD_SINK_STREAM0; i < CSI2TX_PAD_MAX; i++) 503 csi2tx->pads[i].flags = MEDIA_PAD_FL_SINK; 504 505 /* 506 * Only the input pads are considered to have a format at the 507 * moment. The CSI link can multiplex various streams with 508 * different formats, and we can't expose this in v4l2 right 509 * now. 510 */ 511 for (i = CSI2TX_PAD_SINK_STREAM0; i < CSI2TX_PAD_MAX; i++) 512 csi2tx->pad_fmts[i] = fmt_default; 513 514 ret = media_entity_pads_init(&csi2tx->subdev.entity, CSI2TX_PAD_MAX, 515 csi2tx->pads); 516 if (ret) 517 goto err_free_priv; 518 519 ret = v4l2_async_register_subdev(&csi2tx->subdev); 520 if (ret < 0) 521 goto err_free_priv; 522 523 dev_info(&pdev->dev, 524 "Probed CSI2TX with %u/%u lanes, %u streams, %s D-PHY\n", 525 csi2tx->num_lanes, csi2tx->max_lanes, csi2tx->max_streams, 526 csi2tx->has_internal_dphy ? "internal" : "no"); 527 528 return 0; 529 530 err_free_priv: > 531 kfree(csi2tx); 532 return ret; 533 } 534 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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