| Message ID | 20220602210056.73316-3-lyude@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/3] drm/amdgpu/dm/mst: Stop grabbing mst_mgr->lock in compute_mst_dsc_configs_for_state() | expand |
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)
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 <lyude@redhat.com> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)