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Date: Mon, 2 Jul 2018 09:09:07 +0300
From: Dan Carpenter <dan.carpenter@...cle.com>
To: kbuild@...org, Steve Longerbeam <slongerbeam@...il.com>
Cc: kbuild-all@...org, linux-media@...r.kernel.org,
Steve Longerbeam <steve_longerbeam@...tor.com>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 15/17] media: platform: Switch to
v4l2_async_notifier_add_subdev
Hi Steve,
I love your patch! Perhaps something to improve:
url: https://github.com/0day-ci/linux/commits/Steve-Longerbeam/media-imx-Switch-to-subdev-notifiers/20180630-035625
base: git://linuxtv.org/media_tree.git master
New smatch warnings:
drivers/media/platform/xilinx/xilinx-vipp.c:97 xvip_graph_build_one() error: '%pOF' expects argument of type 'struct device_node*', argument 3 has type 'struct fwnode_handle*'
drivers/media/platform/xilinx/xilinx-vipp.c:335 xvip_graph_notify_bound() error: '%pOF' expects argument of type 'struct device_node*', argument 3 has type 'struct fwnode_handle*'
Old smatch warnings:
drivers/media/platform/xilinx/xilinx-vipp.c:106 xvip_graph_build_one() error: '%pOF' expects argument of type 'struct device_node*', argument 4 has type 'struct fwnode_handle*'
drivers/media/platform/xilinx/xilinx-vipp.c:133 xvip_graph_build_one() error: '%pOF' expects argument of type 'struct device_node*', argument 3 has type 'struct fwnode_handle*'
drivers/media/platform/xilinx/xilinx-vipp.c:143 xvip_graph_build_one() error: '%pOF' expects argument of type 'struct device_node*', argument 4 has type 'struct fwnode_handle*'
# https://github.com/0day-ci/linux/commit/86ede05d30b3cad4b07c2df915fc83b94d3327f1
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout 86ede05d30b3cad4b07c2df915fc83b94d3327f1
vim +97 drivers/media/platform/xilinx/xilinx-vipp.c
df3305156 Laurent Pinchart 2013-05-15 70
df3305156 Laurent Pinchart 2013-05-15 71 static int xvip_graph_build_one(struct xvip_composite_device *xdev,
df3305156 Laurent Pinchart 2013-05-15 72 struct xvip_graph_entity *entity)
df3305156 Laurent Pinchart 2013-05-15 73 {
df3305156 Laurent Pinchart 2013-05-15 74 u32 link_flags = MEDIA_LNK_FL_ENABLED;
df3305156 Laurent Pinchart 2013-05-15 75 struct media_entity *local = entity->entity;
df3305156 Laurent Pinchart 2013-05-15 76 struct media_entity *remote;
df3305156 Laurent Pinchart 2013-05-15 77 struct media_pad *local_pad;
df3305156 Laurent Pinchart 2013-05-15 78 struct media_pad *remote_pad;
df3305156 Laurent Pinchart 2013-05-15 79 struct xvip_graph_entity *ent;
859969b38 Sakari Ailus 2016-08-26 80 struct v4l2_fwnode_link link;
86ede05d3 Steve Longerbeam 2018-06-29 81 struct fwnode_handle *ep = NULL;
df3305156 Laurent Pinchart 2013-05-15 82 int ret = 0;
df3305156 Laurent Pinchart 2013-05-15 83
df3305156 Laurent Pinchart 2013-05-15 84 dev_dbg(xdev->dev, "creating links for entity %s\n", local->name);
df3305156 Laurent Pinchart 2013-05-15 85
df3305156 Laurent Pinchart 2013-05-15 86 while (1) {
df3305156 Laurent Pinchart 2013-05-15 87 /* Get the next endpoint and parse its link. */
86ede05d3 Steve Longerbeam 2018-06-29 88 ep = fwnode_graph_get_next_endpoint(entity->asd.match.fwnode,
86ede05d3 Steve Longerbeam 2018-06-29 89 ep);
ef94711a0 Akinobu Mita 2017-10-12 90 if (ep == NULL)
df3305156 Laurent Pinchart 2013-05-15 91 break;
df3305156 Laurent Pinchart 2013-05-15 92
68d9c47b1 Rob Herring 2017-07-21 93 dev_dbg(xdev->dev, "processing endpoint %pOF\n", ep);
df3305156 Laurent Pinchart 2013-05-15 94
86ede05d3 Steve Longerbeam 2018-06-29 95 ret = v4l2_fwnode_parse_link(ep, &link);
df3305156 Laurent Pinchart 2013-05-15 96 if (ret < 0) {
68d9c47b1 Rob Herring 2017-07-21 @97 dev_err(xdev->dev, "failed to parse link for %pOF\n",
68d9c47b1 Rob Herring 2017-07-21 98 ep);
df3305156 Laurent Pinchart 2013-05-15 99 continue;
df3305156 Laurent Pinchart 2013-05-15 100 }
df3305156 Laurent Pinchart 2013-05-15 101
df3305156 Laurent Pinchart 2013-05-15 102 /* Skip sink ports, they will be processed from the other end of
df3305156 Laurent Pinchart 2013-05-15 103 * the link.
df3305156 Laurent Pinchart 2013-05-15 104 */
df3305156 Laurent Pinchart 2013-05-15 105 if (link.local_port >= local->num_pads) {
68d9c47b1 Rob Herring 2017-07-21 106 dev_err(xdev->dev, "invalid port number %u for %pOF\n",
86ede05d3 Steve Longerbeam 2018-06-29 107 link.local_port, link.local_node);
859969b38 Sakari Ailus 2016-08-26 108 v4l2_fwnode_put_link(&link);
df3305156 Laurent Pinchart 2013-05-15 109 ret = -EINVAL;
df3305156 Laurent Pinchart 2013-05-15 110 break;
df3305156 Laurent Pinchart 2013-05-15 111 }
df3305156 Laurent Pinchart 2013-05-15 112
df3305156 Laurent Pinchart 2013-05-15 113 local_pad = &local->pads[link.local_port];
df3305156 Laurent Pinchart 2013-05-15 114
df3305156 Laurent Pinchart 2013-05-15 115 if (local_pad->flags & MEDIA_PAD_FL_SINK) {
68d9c47b1 Rob Herring 2017-07-21 116 dev_dbg(xdev->dev, "skipping sink port %pOF:%u\n",
86ede05d3 Steve Longerbeam 2018-06-29 117 link.local_node, link.local_port);
859969b38 Sakari Ailus 2016-08-26 118 v4l2_fwnode_put_link(&link);
df3305156 Laurent Pinchart 2013-05-15 119 continue;
df3305156 Laurent Pinchart 2013-05-15 120 }
df3305156 Laurent Pinchart 2013-05-15 121
df3305156 Laurent Pinchart 2013-05-15 122 /* Skip DMA engines, they will be processed separately. */
859969b38 Sakari Ailus 2016-08-26 123 if (link.remote_node == of_fwnode_handle(xdev->dev->of_node)) {
68d9c47b1 Rob Herring 2017-07-21 124 dev_dbg(xdev->dev, "skipping DMA port %pOF:%u\n",
86ede05d3 Steve Longerbeam 2018-06-29 125 link.local_node, link.local_port);
859969b38 Sakari Ailus 2016-08-26 126 v4l2_fwnode_put_link(&link);
df3305156 Laurent Pinchart 2013-05-15 127 continue;
df3305156 Laurent Pinchart 2013-05-15 128 }
df3305156 Laurent Pinchart 2013-05-15 129
df3305156 Laurent Pinchart 2013-05-15 130 /* Find the remote entity. */
86ede05d3 Steve Longerbeam 2018-06-29 131 ent = xvip_graph_find_entity(xdev, link.remote_node);
df3305156 Laurent Pinchart 2013-05-15 132 if (ent == NULL) {
68d9c47b1 Rob Herring 2017-07-21 133 dev_err(xdev->dev, "no entity found for %pOF\n",
86ede05d3 Steve Longerbeam 2018-06-29 134 link.remote_node);
859969b38 Sakari Ailus 2016-08-26 135 v4l2_fwnode_put_link(&link);
df3305156 Laurent Pinchart 2013-05-15 136 ret = -ENODEV;
df3305156 Laurent Pinchart 2013-05-15 137 break;
df3305156 Laurent Pinchart 2013-05-15 138 }
df3305156 Laurent Pinchart 2013-05-15 139
df3305156 Laurent Pinchart 2013-05-15 140 remote = ent->entity;
df3305156 Laurent Pinchart 2013-05-15 141
df3305156 Laurent Pinchart 2013-05-15 142 if (link.remote_port >= remote->num_pads) {
68d9c47b1 Rob Herring 2017-07-21 143 dev_err(xdev->dev, "invalid port number %u on %pOF\n",
86ede05d3 Steve Longerbeam 2018-06-29 144 link.remote_port, link.remote_node);
859969b38 Sakari Ailus 2016-08-26 145 v4l2_fwnode_put_link(&link);
df3305156 Laurent Pinchart 2013-05-15 146 ret = -EINVAL;
df3305156 Laurent Pinchart 2013-05-15 147 break;
df3305156 Laurent Pinchart 2013-05-15 148 }
df3305156 Laurent Pinchart 2013-05-15 149
df3305156 Laurent Pinchart 2013-05-15 150 remote_pad = &remote->pads[link.remote_port];
df3305156 Laurent Pinchart 2013-05-15 151
859969b38 Sakari Ailus 2016-08-26 152 v4l2_fwnode_put_link(&link);
df3305156 Laurent Pinchart 2013-05-15 153
df3305156 Laurent Pinchart 2013-05-15 154 /* Create the media link. */
df3305156 Laurent Pinchart 2013-05-15 155 dev_dbg(xdev->dev, "creating %s:%u -> %s:%u link\n",
df3305156 Laurent Pinchart 2013-05-15 156 local->name, local_pad->index,
df3305156 Laurent Pinchart 2013-05-15 157 remote->name, remote_pad->index);
df3305156 Laurent Pinchart 2013-05-15 158
8df00a158 Mauro Carvalho Chehab 2015-08-07 159 ret = media_create_pad_link(local, local_pad->index,
df3305156 Laurent Pinchart 2013-05-15 160 remote, remote_pad->index,
df3305156 Laurent Pinchart 2013-05-15 161 link_flags);
df3305156 Laurent Pinchart 2013-05-15 162 if (ret < 0) {
df3305156 Laurent Pinchart 2013-05-15 163 dev_err(xdev->dev,
df3305156 Laurent Pinchart 2013-05-15 164 "failed to create %s:%u -> %s:%u link\n",
df3305156 Laurent Pinchart 2013-05-15 165 local->name, local_pad->index,
df3305156 Laurent Pinchart 2013-05-15 166 remote->name, remote_pad->index);
df3305156 Laurent Pinchart 2013-05-15 167 break;
df3305156 Laurent Pinchart 2013-05-15 168 }
df3305156 Laurent Pinchart 2013-05-15 169 }
df3305156 Laurent Pinchart 2013-05-15 170
86ede05d3 Steve Longerbeam 2018-06-29 171 fwnode_handle_put(ep);
df3305156 Laurent Pinchart 2013-05-15 172 return ret;
df3305156 Laurent Pinchart 2013-05-15 173 }
df3305156 Laurent Pinchart 2013-05-15 174
---
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