On 08/18/2016 02:26 AM, Daniel Vetter wrote:
> It's only used in drm_mode_object_get_properties, and we can compute
> it there directly with a bit of code shuffling.
>

Reviewed-by: Archit Taneja <architt at codeaurora.org>

> Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> ---
>   drivers/gpu/drm/drm_mode_object.c | 31 ++++++++++++-------------------
>   include/drm/drm_mode_object.h     |  2 +-
>   2 files changed, 13 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_mode_object.c 
> b/drivers/gpu/drm/drm_mode_object.c
> index cef9104e8285..a92aeed51156 100644
> --- a/drivers/gpu/drm/drm_mode_object.c
> +++ b/drivers/gpu/drm/drm_mode_object.c
> @@ -209,8 +209,6 @@ void drm_object_attach_property(struct drm_mode_object 
> *obj,
>       obj->properties->properties[count] = property;
>       obj->properties->values[count] = init_val;
>       obj->properties->count++;
> -     if (property->flags & DRM_MODE_PROP_ATOMIC)
> -             obj->properties->atomic_count++;
>   }
>   EXPORT_SYMBOL(drm_object_attach_property);
>
> @@ -288,35 +286,30 @@ int drm_mode_object_get_properties(struct 
> drm_mode_object *obj, bool atomic,
>                                  uint64_t __user *prop_values,
>                                  uint32_t *arg_count_props)
>   {
> -     int props_count;
> -     int i, ret, copied;
> +     int i, ret, count;
>
> -     props_count = obj->properties->count;
> -     if (!atomic)
> -             props_count -= obj->properties->atomic_count;
> +     for (i = 0, count = 0; i < obj->properties->count; i++) {
> +             struct drm_property *prop = obj->properties->properties[i];
> +             uint64_t val;
>
> -     if ((*arg_count_props >= props_count) && props_count) {
> -             for (i = 0, copied = 0; copied < props_count; i++) {
> -                     struct drm_property *prop = 
> obj->properties->properties[i];
> -                     uint64_t val;
> -
> -                     if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic)
> -                             continue;
> +             if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic)
> +                     continue;
>
> +             if (*arg_count_props > count) {
>                       ret = drm_object_property_get_value(obj, prop, &val);
>                       if (ret)
>                               return ret;
>
> -                     if (put_user(prop->base.id, prop_ptr + copied))
> +                     if (put_user(prop->base.id, prop_ptr + count))
>                               return -EFAULT;
>
> -                     if (put_user(val, prop_values + copied))
> +                     if (put_user(val, prop_values + count))
>                               return -EFAULT;
> -
> -                     copied++;
>               }
> +
> +             count++;
>       }
> -     *arg_count_props = props_count;
> +     *arg_count_props = count;
>
>       return 0;
>   }
> diff --git a/include/drm/drm_mode_object.h b/include/drm/drm_mode_object.h
> index c0e4414299f7..b8adb6425f2a 100644
> --- a/include/drm/drm_mode_object.h
> +++ b/include/drm/drm_mode_object.h
> @@ -37,7 +37,7 @@ struct drm_mode_object {
>
>   #define DRM_OBJECT_MAX_PROPERTY 24
>   struct drm_object_properties {
> -     int count, atomic_count;
> +     int count;
>       /* NOTE: if we ever start dynamically destroying properties (ie.
>        * not at drm_mode_config_cleanup() time), then we'd have to do
>        * a better job of detaching property from mode objects to avoid
>

-- 
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