[PATCH 2/3] drm/amdgpu/dm/mst: Stop grabbing mst_mgr->lock in pre_compute_mst_dsc_configs_for_state()

[Lyude Paul]

This lock is only needed if you're iterating through the in-memory topology
(e.g. drm_dp_mst_branch->ports, drm_dp_mst_port->mstb, etc.). This doesn't
actually seem to be what's going on here though, so we can just drop this
lock.

Signed-off-by: Lyude Paul <ly...@redhat.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index cb3b0e08acc4..1259f2f7a8f9 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -1112,16 +1112,12 @@ static bool
                if (!is_dsc_need_re_compute(state, dc_state, stream->link))
                        continue;
 
-               mutex_lock(&aconnector->mst_mgr.lock);
                if (!compute_mst_dsc_configs_for_link(state,
                                                      dc_state,
                                                      stream->link,
                                                      vars,
-                                                     &link_vars_start_index)) {
-                       mutex_unlock(&aconnector->mst_mgr.lock);
+                                                     &link_vars_start_index))
                        return false;
-               }
-               mutex_unlock(&aconnector->mst_mgr.lock);
 
                for (j = 0; j < dc_state->stream_count; j++) {
                        if (dc_state->streams[j]->link == stream->link)
-- 
2.35.3