dc_state_create_current_copy
context = dc_state_create_current_copy(dc);
state->context = dc_state_create_current_copy(adev->dm.dc);
struct dc_state *dangling_context = dc_state_create_current_copy(dc);
context = dc_state_create_current_copy(dc);
struct dc_state *dc_state_create_current_copy(struct dc *dc);