[PATCH 05/10] drm: add a path blob property

Thierry Reding thierry.reding at gmail.com
Tue May 13 01:25:36 PDT 2014


On Mon, May 12, 2014 at 04:46:42PM +1000, Dave Airlie wrote:
> From: Dave Airlie <airlied at redhat.com>
> 
> This property will be used by the MST code to provide userspace
> with a path to parse so it can recognise connectors around hotplugs.
> 
> Signed-off-by: Dave Airlie <airlied at redhat.com>
> ---
>  drivers/gpu/drm/drm_crtc.c | 26 ++++++++++++++++++++++++++
>  include/drm/drm_crtc.h     |  5 +++++
>  2 files changed, 31 insertions(+)

The documentation for this property is missing. =)

> diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
[...]
> +int drm_mode_connector_set_path_property(struct drm_connector *connector,
> +					 char *path)

"const char *path"?

> +{
> +	struct drm_device *dev = connector->dev;
> +	int ret, size;
> +	size = strlen(path) + 1;

At the risk of sounding pedantic: strlen() returns size_t, not int. But
I see that drm_property_create_blob() uses int as the type for the
length argument, so there's an inconsistency either way. I'll go prepare
a patch to fix that inconsistency and see if anybody else is equally
pedantic and willing to apply it.

Thierry
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