Hi Sakari, I love your patch! Yet something to improve: [auto build test ERROR on linuxtv-media/master] [also build test ERROR on v5.0 next-20190306] [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/Sakari-Ailus/V4L2-fwnode-framework-and-driver-fixes/20190308-042715 base: git://linuxtv.org/media_tree.git master config: sparc64-allyesconfig (attached as .config) compiler: sparc64-linux-gnu-gcc (Debian 8.2.0-11) 8.2.0 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=8.2.0 make.cross ARCH=sparc64 All errors (new ones prefixed by >>): drivers/media//platform/ti-vpe/cal.c: In function 'of_cal_create_instance': >> drivers/media//platform/ti-vpe/cal.c:1755:14: error: 'remote_ep' undeclared (first use in this function) of_node_put(remote_ep); ^~~~~~~~~ drivers/media//platform/ti-vpe/cal.c:1755:14: note: each undeclared identifier is reported only once for each function it appears in vim +/remote_ep +1755 drivers/media//platform/ti-vpe/cal.c 343e89a79 Benoit Parrot 2016-01-06 1642 343e89a79 Benoit Parrot 2016-01-06 1643 static int of_cal_create_instance(struct cal_ctx *ctx, int inst) 343e89a79 Benoit Parrot 2016-01-06 1644 { 343e89a79 Benoit Parrot 2016-01-06 1645 struct platform_device *pdev = ctx->dev->pdev; e8013a352 Sakari Ailus 2019-03-05 1646 struct device_node *ep_node, *port, *sensor_node, *parent; 859969b38 Sakari Ailus 2016-08-26 1647 struct v4l2_fwnode_endpoint *endpoint; 343e89a79 Benoit Parrot 2016-01-06 1648 struct v4l2_async_subdev *asd; 343e89a79 Benoit Parrot 2016-01-06 1649 u32 regval = 0; 343e89a79 Benoit Parrot 2016-01-06 1650 int ret, index, found_port = 0, lane; 343e89a79 Benoit Parrot 2016-01-06 1651 343e89a79 Benoit Parrot 2016-01-06 1652 parent = pdev->dev.of_node; 343e89a79 Benoit Parrot 2016-01-06 1653 343e89a79 Benoit Parrot 2016-01-06 1654 asd = &ctx->asd; 343e89a79 Benoit Parrot 2016-01-06 1655 endpoint = &ctx->endpoint; 343e89a79 Benoit Parrot 2016-01-06 1656 343e89a79 Benoit Parrot 2016-01-06 1657 ep_node = NULL; 343e89a79 Benoit Parrot 2016-01-06 1658 port = NULL; 343e89a79 Benoit Parrot 2016-01-06 1659 sensor_node = NULL; 343e89a79 Benoit Parrot 2016-01-06 1660 ret = -EINVAL; 343e89a79 Benoit Parrot 2016-01-06 1661 343e89a79 Benoit Parrot 2016-01-06 1662 ctx_dbg(3, ctx, "Scanning Port node for csi2 port: %d\n", inst); 343e89a79 Benoit Parrot 2016-01-06 1663 for (index = 0; index < CAL_NUM_CSI2_PORTS; index++) { 343e89a79 Benoit Parrot 2016-01-06 1664 port = of_get_next_port(parent, port); 343e89a79 Benoit Parrot 2016-01-06 1665 if (!port) { 343e89a79 Benoit Parrot 2016-01-06 1666 ctx_dbg(1, ctx, "No port node found for csi2 port:%d\n", 343e89a79 Benoit Parrot 2016-01-06 1667 index); 343e89a79 Benoit Parrot 2016-01-06 1668 goto cleanup_exit; 343e89a79 Benoit Parrot 2016-01-06 1669 } 343e89a79 Benoit Parrot 2016-01-06 1670 343e89a79 Benoit Parrot 2016-01-06 1671 /* Match the slice number with <REG> */ 343e89a79 Benoit Parrot 2016-01-06 1672 of_property_read_u32(port, "reg", ®val); 343e89a79 Benoit Parrot 2016-01-06 1673 ctx_dbg(3, ctx, "port:%d inst:%d <reg>:%d\n", 343e89a79 Benoit Parrot 2016-01-06 1674 index, inst, regval); 343e89a79 Benoit Parrot 2016-01-06 1675 if ((regval == inst) && (index == inst)) { 343e89a79 Benoit Parrot 2016-01-06 1676 found_port = 1; 343e89a79 Benoit Parrot 2016-01-06 1677 break; 343e89a79 Benoit Parrot 2016-01-06 1678 } 343e89a79 Benoit Parrot 2016-01-06 1679 } 343e89a79 Benoit Parrot 2016-01-06 1680 343e89a79 Benoit Parrot 2016-01-06 1681 if (!found_port) { 343e89a79 Benoit Parrot 2016-01-06 1682 ctx_dbg(1, ctx, "No port node matches csi2 port:%d\n", 343e89a79 Benoit Parrot 2016-01-06 1683 inst); 343e89a79 Benoit Parrot 2016-01-06 1684 goto cleanup_exit; 343e89a79 Benoit Parrot 2016-01-06 1685 } 343e89a79 Benoit Parrot 2016-01-06 1686 343e89a79 Benoit Parrot 2016-01-06 1687 ctx_dbg(3, ctx, "Scanning sub-device for csi2 port: %d\n", 343e89a79 Benoit Parrot 2016-01-06 1688 inst); 343e89a79 Benoit Parrot 2016-01-06 1689 343e89a79 Benoit Parrot 2016-01-06 1690 ep_node = of_get_next_endpoint(port, ep_node); 343e89a79 Benoit Parrot 2016-01-06 1691 if (!ep_node) { 343e89a79 Benoit Parrot 2016-01-06 1692 ctx_dbg(3, ctx, "can't get next endpoint\n"); 343e89a79 Benoit Parrot 2016-01-06 1693 goto cleanup_exit; 343e89a79 Benoit Parrot 2016-01-06 1694 } 343e89a79 Benoit Parrot 2016-01-06 1695 343e89a79 Benoit Parrot 2016-01-06 1696 sensor_node = of_graph_get_remote_port_parent(ep_node); 343e89a79 Benoit Parrot 2016-01-06 1697 if (!sensor_node) { 343e89a79 Benoit Parrot 2016-01-06 1698 ctx_dbg(3, ctx, "can't get remote parent\n"); 343e89a79 Benoit Parrot 2016-01-06 1699 goto cleanup_exit; 343e89a79 Benoit Parrot 2016-01-06 1700 } 859969b38 Sakari Ailus 2016-08-26 1701 asd->match_type = V4L2_ASYNC_MATCH_FWNODE; 4e48afecd Mauro Carvalho Chehab 2017-09-27 1702 asd->match.fwnode = of_fwnode_handle(sensor_node); 343e89a79 Benoit Parrot 2016-01-06 1703 e8013a352 Sakari Ailus 2019-03-05 1704 v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep_node), endpoint); 343e89a79 Benoit Parrot 2016-01-06 1705 2d95e7ed0 Sakari Ailus 2018-07-03 1706 if (endpoint->bus_type != V4L2_MBUS_CSI2_DPHY) { f764e6d68 Rob Herring 2018-08-27 1707 ctx_err(ctx, "Port:%d sub-device %pOFn is not a CSI2 device\n", f764e6d68 Rob Herring 2018-08-27 1708 inst, sensor_node); 343e89a79 Benoit Parrot 2016-01-06 1709 goto cleanup_exit; 343e89a79 Benoit Parrot 2016-01-06 1710 } 343e89a79 Benoit Parrot 2016-01-06 1711 343e89a79 Benoit Parrot 2016-01-06 1712 /* Store Virtual Channel number */ 343e89a79 Benoit Parrot 2016-01-06 1713 ctx->virtual_channel = endpoint->base.id; 343e89a79 Benoit Parrot 2016-01-06 1714 343e89a79 Benoit Parrot 2016-01-06 1715 ctx_dbg(3, ctx, "Port:%d v4l2-endpoint: CSI2\n", inst); 343e89a79 Benoit Parrot 2016-01-06 1716 ctx_dbg(3, ctx, "Virtual Channel=%d\n", ctx->virtual_channel); 343e89a79 Benoit Parrot 2016-01-06 1717 ctx_dbg(3, ctx, "flags=0x%08x\n", endpoint->bus.mipi_csi2.flags); 343e89a79 Benoit Parrot 2016-01-06 1718 ctx_dbg(3, ctx, "clock_lane=%d\n", endpoint->bus.mipi_csi2.clock_lane); 343e89a79 Benoit Parrot 2016-01-06 1719 ctx_dbg(3, ctx, "num_data_lanes=%d\n", 343e89a79 Benoit Parrot 2016-01-06 1720 endpoint->bus.mipi_csi2.num_data_lanes); 343e89a79 Benoit Parrot 2016-01-06 1721 ctx_dbg(3, ctx, "data_lanes= <\n"); 343e89a79 Benoit Parrot 2016-01-06 1722 for (lane = 0; lane < endpoint->bus.mipi_csi2.num_data_lanes; lane++) 343e89a79 Benoit Parrot 2016-01-06 1723 ctx_dbg(3, ctx, "\t%d\n", 343e89a79 Benoit Parrot 2016-01-06 1724 endpoint->bus.mipi_csi2.data_lanes[lane]); 343e89a79 Benoit Parrot 2016-01-06 1725 ctx_dbg(3, ctx, "\t>\n"); 343e89a79 Benoit Parrot 2016-01-06 1726 f764e6d68 Rob Herring 2018-08-27 1727 ctx_dbg(1, ctx, "Port: %d found sub-device %pOFn\n", f764e6d68 Rob Herring 2018-08-27 1728 inst, sensor_node); 343e89a79 Benoit Parrot 2016-01-06 1729 d079f94c9 Steve Longerbeam 2018-09-29 1730 v4l2_async_notifier_init(&ctx->notifier); d079f94c9 Steve Longerbeam 2018-09-29 1731 d079f94c9 Steve Longerbeam 2018-09-29 1732 ret = v4l2_async_notifier_add_subdev(&ctx->notifier, asd); d079f94c9 Steve Longerbeam 2018-09-29 1733 if (ret) { d079f94c9 Steve Longerbeam 2018-09-29 1734 ctx_err(ctx, "Error adding asd\n"); d079f94c9 Steve Longerbeam 2018-09-29 1735 goto cleanup_exit; d079f94c9 Steve Longerbeam 2018-09-29 1736 } d079f94c9 Steve Longerbeam 2018-09-29 1737 b6ee3f0dc Laurent Pinchart 2017-08-30 1738 ctx->notifier.ops = &cal_async_ops; 343e89a79 Benoit Parrot 2016-01-06 1739 ret = v4l2_async_notifier_register(&ctx->v4l2_dev, 343e89a79 Benoit Parrot 2016-01-06 1740 &ctx->notifier); 343e89a79 Benoit Parrot 2016-01-06 1741 if (ret) { 343e89a79 Benoit Parrot 2016-01-06 1742 ctx_err(ctx, "Error registering async notifier\n"); d079f94c9 Steve Longerbeam 2018-09-29 1743 v4l2_async_notifier_cleanup(&ctx->notifier); 343e89a79 Benoit Parrot 2016-01-06 1744 ret = -EINVAL; 343e89a79 Benoit Parrot 2016-01-06 1745 } 343e89a79 Benoit Parrot 2016-01-06 1746 d079f94c9 Steve Longerbeam 2018-09-29 1747 /* d079f94c9 Steve Longerbeam 2018-09-29 1748 * On success we need to keep reference on sensor_node, or d079f94c9 Steve Longerbeam 2018-09-29 1749 * if notifier_cleanup was called above, sensor_node was d079f94c9 Steve Longerbeam 2018-09-29 1750 * already put. d079f94c9 Steve Longerbeam 2018-09-29 1751 */ d079f94c9 Steve Longerbeam 2018-09-29 1752 sensor_node = NULL; d079f94c9 Steve Longerbeam 2018-09-29 1753 343e89a79 Benoit Parrot 2016-01-06 1754 cleanup_exit: 343e89a79 Benoit Parrot 2016-01-06 @1755 of_node_put(remote_ep); 343e89a79 Benoit Parrot 2016-01-06 1756 of_node_put(sensor_node); 343e89a79 Benoit Parrot 2016-01-06 1757 of_node_put(ep_node); 343e89a79 Benoit Parrot 2016-01-06 1758 of_node_put(port); 343e89a79 Benoit Parrot 2016-01-06 1759 343e89a79 Benoit Parrot 2016-01-06 1760 return ret; 343e89a79 Benoit Parrot 2016-01-06 1761 } 343e89a79 Benoit Parrot 2016-01-06 1762 :::::: The code at line 1755 was first introduced by commit :::::: 343e89a792a571b28b9c02850db7af2ef25ffb20 [media] media: ti-vpe: Add CAL v4l2 camera capture driver :::::: TO: Benoit Parrot <bparrot@xxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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