diff options
Diffstat (limited to 'include/drm/drm_modes.h')
| -rw-r--r-- | include/drm/drm_modes.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h index 2f78b7ee4824..b159fe07fcf9 100644 --- a/include/drm/drm_modes.h +++ b/include/drm/drm_modes.h @@ -411,6 +411,19 @@ struct drm_display_mode { * Field for setting the HDMI picture aspect ratio of a mode. */ enum hdmi_picture_aspect picture_aspect_ratio; + + /** + * @export_head: + * + * struct list_head for modes to be exposed to the userspace. + * This is to maintain a list of exposed modes while preparing + * user-mode's list in drm_mode_getconnector ioctl. The purpose of this + * list_head only lies in the ioctl function, and is not expected to be + * used outside the function. + * Once used, the stale pointers are not reset, but left as it is, to + * avoid overhead of protecting it by mode_config.mutex. + */ + struct list_head export_head; }; /** |