Patch "drm/dp_mst: Factor out function to queue a topology probe work" has been added to the 6.6-stable tree

Patch "drm/dp_mst: Factor out function to queue a topology probe work" has been added to the 6.6-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm/dp_mst: Factor out function to queue a topology probe work

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-dp_mst-factor-out-function-to-queue-a-topology-probe-work.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


From e9b36c5be2e7fdef2cc933c1dac50bd81881e9b8 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Mon, 22 Jul 2024 19:54:50 +0300
Subject: drm/dp_mst: Factor out function to queue a topology probe work

From: Imre Deak <imre.deak@intel.com>

commit e9b36c5be2e7fdef2cc933c1dac50bd81881e9b8 upstream.

Factor out a function to queue a work for probing the topology, also
used by the next patch.

Cc: Lyude Paul <lyude@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240722165503.2084999-2-imre.deak@intel.com
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/display/drm_dp_mst_topology.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
@@ -2692,6 +2692,11 @@ static void drm_dp_mst_link_probe_work(s
 		drm_kms_helper_hotplug_event(dev);
 }
 
+static void drm_dp_mst_queue_probe_work(struct drm_dp_mst_topology_mgr *mgr)
+{
+	queue_work(system_long_wq, &mgr->work);
+}
+
 static bool drm_dp_validate_guid(struct drm_dp_mst_topology_mgr *mgr,
 				 u8 *guid)
 {
@@ -3643,7 +3648,7 @@ int drm_dp_mst_topology_mgr_set_mst(stru
 		/* Write reset payload */
 		drm_dp_dpcd_write_payload(mgr, 0, 0, 0x3f);
 
-		queue_work(system_long_wq, &mgr->work);
+		drm_dp_mst_queue_probe_work(mgr);
 
 		ret = 0;
 	} else {
@@ -3766,7 +3771,7 @@ int drm_dp_mst_topology_mgr_resume(struc
 	 * state of our in-memory topology back into sync with reality. So,
 	 * restart the probing process as if we're probing a new hub
 	 */
-	queue_work(system_long_wq, &mgr->work);
+	drm_dp_mst_queue_probe_work(mgr);
 	mutex_unlock(&mgr->lock);
 
 	if (sync) {


Patches currently in stable-queue which might be from imre.deak@intel.com are

queue-6.6/drm-dp_mst-factor-out-function-to-queue-a-topology-probe-work.patch
queue-6.6/drm-dp_mst-add-a-helper-to-queue-a-topology-probe.patch