Merge tag 'topic/connector-locking-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-next

connector hotplug locking cleanup and fixes to make it save against
atomic. Note that because of depencies this is based on top of the
drm-intel-next pull, so that one needs to go in before this one.

I've also thrown in the mode_group removal on top since it's defunct,
never worked really, no one seems to care and the code can be resurrected
easily.

* tag 'topic/connector-locking-2015-07-23' of git://anongit.freedesktop.org/drm-intel:
  drm: gc now dead mode_group code
  drm: Stop filtering according to mode_group in getresources
  drm: Roll out drm_for_each_{plane,crtc,encoder}
  drm/cma-helper: Fix locking in drm_fb_cma_debugfs_show
  drm: Roll out drm_for_each_connector more
  drm: Amend connector list locking rules
  drm/radeon: Take all modeset locks for DP MST hotplug
  drm/i915: Take all modeset locks for DP MST hotplug
  drm: Check locking in drm_for_each_fb
  drm/i915: Use drm_for_each_fb in i915_debugfs.c
  drm: Check locking in drm_for_each_connector
  drm/fbdev-helper: Grab mode_config.mutex in drm_fb_helper_single_add_all_connectors
  drm/probe-helper: Grab mode_config.mutex in poll_init/enable
  drm: Add modeset object iterators
  drm: Simplify drm_for_each_legacy_plane arguments

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/gpu/drm/drm_modeset_lock.c b/drivers/gpu/drm/drm_modeset_lock.c
index c0a5cd8c5262..744dfbc6a329 100644
--- a/drivers/gpu/drm/drm_modeset_lock.c
+++ b/drivers/gpu/drm/drm_modeset_lock.c
@@ -276,7 +276,7 @@ void drm_warn_on_modeset_not_all_locked(struct drm_device *dev)
 	if (oops_in_progress)
 		return;
 
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+	drm_for_each_crtc(crtc, dev)
 		WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
 
 	WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
@@ -464,18 +464,17 @@ EXPORT_SYMBOL(drm_modeset_unlock);
 int drm_modeset_lock_all_crtcs(struct drm_device *dev,
 		struct drm_modeset_acquire_ctx *ctx)
 {
-	struct drm_mode_config *config = &dev->mode_config;
 	struct drm_crtc *crtc;
 	struct drm_plane *plane;
 	int ret = 0;
 
-	list_for_each_entry(crtc, &config->crtc_list, head) {
+	drm_for_each_crtc(crtc, dev) {
 		ret = drm_modeset_lock(&crtc->mutex, ctx);
 		if (ret)
 			return ret;
 	}
 
-	list_for_each_entry(plane, &config->plane_list, head) {
+	drm_for_each_plane(plane, dev) {
 		ret = drm_modeset_lock(&plane->mutex, ctx);
 		if (ret)
 			return ret;