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Diffstat (limited to 'include/drm/drm_crtc.h')
-rw-r--r--include/drm/drm_crtc.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 7c95a7df6065..499562274353 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1589,8 +1589,18 @@ static inline struct drm_property *drm_property_find(struct drm_device *dev,
#define drm_for_each_crtc(crtc, dev) \
list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head)
+static inline void
+assert_drm_connector_list_read_locked(struct drm_mode_config *mode_config)
+{
+ WARN_ON(!mutex_is_locked(&mode_config->mutex));
+}
+
#define drm_for_each_connector(connector, dev) \
- list_for_each_entry(connector, &(dev)->mode_config.connector_list, head)
+ for (assert_drm_connector_list_read_locked(&(dev)->mode_config), \
+ connector = list_first_entry(&(dev)->mode_config.connector_list, \
+ struct drm_connector, head); \
+ &connector->head != (&(dev)->mode_config.connector_list); \
+ connector = list_next_entry(connector, head))
#define drm_for_each_encoder(encoder, dev) \
list_for_each_entry(encoder, &(dev)->mode_config.encoder_list, head)