amdgpu_dm_wb_connector
struct amdgpu_dm_wb_connector *wbcon = kzalloc_obj(*wbcon);
struct amdgpu_dm_wb_connector *dm_wbcon = NULL;
#define to_amdgpu_dm_wb_connector(x) container_of(x, struct amdgpu_dm_wb_connector, base)
struct amdgpu_dm_wb_connector *wbcon,
struct amdgpu_dm_wb_connector *dm_wbcon,