Re: [PATCH] media: Convert to using %pOF instead of full_name

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On 07/18/2017 11:43 PM, Rob Herring wrote:
> Now that we have a custom printf format specifier, convert users of
> full_name to use %pOF instead. This is preparation to remove storing
> of the full path string for each node.
> 
> Signed-off-by: Rob Herring <robh@xxxxxxxxxx>

> ---
>   drivers/media/i2c/s5c73m3/s5c73m3-core.c       |  3 +-
>   drivers/media/i2c/s5k5baf.c                    |  7 ++--
>   drivers/media/platform/am437x/am437x-vpfe.c    |  4 +-
>   drivers/media/platform/atmel/atmel-isc.c       |  4 +-
>   drivers/media/platform/davinci/vpif_capture.c  | 16 ++++----
>   drivers/media/platform/exynos4-is/fimc-is.c    |  8 ++--
>   drivers/media/platform/exynos4-is/fimc-lite.c  |  3 +-
>   drivers/media/platform/exynos4-is/media-dev.c  |  8 ++--
>   drivers/media/platform/exynos4-is/mipi-csis.c  |  4 +-
>   drivers/media/platform/mtk-mdp/mtk_mdp_comp.c  |  6 +--
>   drivers/media/platform/mtk-mdp/mtk_mdp_core.c  |  8 ++--
>   drivers/media/platform/omap3isp/isp.c          |  8 ++--
>   drivers/media/platform/pxa_camera.c            |  2 +-
>   drivers/media/platform/rcar-vin/rcar-core.c    |  4 +-
>   drivers/media/platform/soc_camera/soc_camera.c |  6 +--
>   drivers/media/platform/xilinx/xilinx-vipp.c    | 52 +++++++++++++-------------
>   drivers/media/v4l2-core/v4l2-async.c           |  4 +-
>   drivers/media/v4l2-core/v4l2-clk.c             |  3 +-
>   include/media/v4l2-clk.h                       |  4 +-
>   19 files changed, 71 insertions(+), 83 deletions(-)

> diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c
> index ac4704388920..9233ad0b1b6b 100644
> --- a/drivers/media/platform/xilinx/xilinx-vipp.c
> +++ b/drivers/media/platform/xilinx/xilinx-vipp.c

> @@ -144,9 +144,8 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
>   		remote = ent->entity;
> 
>   		if (link.remote_port >= remote->num_pads) {
> -			dev_err(xdev->dev, "invalid port number %u on %s\n",
> -				link.remote_port,
> -				to_of_node(link.remote_node)->full_name);
> +			dev_err(xdev->dev, "invalid port number %u on %pOF\n",
> +				link.remote_port, link.remote_node);

Shouldn't there be to_of_node(link.remote_node) instead of link.remote_node ?

>   			v4l2_fwnode_put_link(&link);
>   			ret = -EINVAL;
>   			break;

> @@ -242,17 +241,17 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
>   		ent = xvip_graph_find_entity(xdev,
>   					     to_of_node(link.remote_node));
>   		if (ent == NULL) {
> -			dev_err(xdev->dev, "no entity found for %s\n",
> -				to_of_node(link.remote_node)->full_name);
> +			dev_err(xdev->dev, "no entity found for %pOF\n",
> +				to_of_node(link.remote_node));
>   			v4l2_fwnode_put_link(&link);
>   			ret = -ENODEV;
>   			break;
>   		}

> diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
> index 851f128eba22..0a385d1ff28c 100644
> --- a/drivers/media/v4l2-core/v4l2-async.c
> +++ b/drivers/media/v4l2-core/v4l2-async.c
> @@ -47,9 +47,7 @@ static bool match_fwnode(struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)
>   	if (!is_of_node(sd->fwnode) || !is_of_node(asd->match.fwnode.fwnode))
>   		return sd->fwnode == asd->match.fwnode.fwnode;
> 
> -	return !of_node_cmp(of_node_full_name(to_of_node(sd->fwnode)),
> -			    of_node_full_name(
> -				    to_of_node(asd->match.fwnode.fwnode)));
> +	return to_of_node(sd->fwnode) == to_of_node(asd->match.fwnode.fwnode);

I'm afraid this will not work, please see commit d2180e0cf77dc7a7049671d5d57d
"[media] v4l: async: make v4l2 coexist with devicetree nodes in a dt overlay"

--
Regards,
Sylwester
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