Extern or forward variable declaration at include/drm/drm_self_refresh_helper.h, line 12 References: drivers/gpu/drm/drm_atomic_helper.c, line 225 drivers/gpu/drm/drm_atomic_helper.c, line 270 drivers/gpu/drm/drm_atomic_helper.c, line 413 drivers/gpu/drm/drm_atomic_helper.c, line 501 drivers/gpu/drm/drm_atomic_helper.c, line 538 drivers/gpu/drm/drm_atomic_helper.c, line 609 drivers/gpu/drm/drm_atomic_helper.c, line 861 drivers/gpu/drm/drm_atomic_helper.c, line 989 drivers/gpu/drm/drm_atomic_helper.c, line 1111 drivers/gpu/drm/drm_atomic_helper.c, line 1174 drivers/gpu/drm/drm_atomic_helper.c, line 1294 drivers/gpu/drm/drm_atomic_helper.c, line 1433 drivers/gpu/drm/drm_atomic_helper.c, line 1492 drivers/gpu/drm/drm_atomic_helper.c, line 1624 drivers/gpu/drm/drm_atomic_helper.c, line 1852 drivers/gpu/drm/drm_atomic_helper.c, line 1905 drivers/gpu/drm/drm_atomic_helper.c, line 1916 drivers/gpu/drm/drm_atomic_helper.c, line 1983 drivers/gpu/drm/drm_atomic_helper.c, line 2086 drivers/gpu/drm/drm_atomic_helper.c, line 2180 drivers/gpu/drm/drm_atomic_helper.c, line 2217 drivers/gpu/drm/drm_atomic_helper.c, line 2262 drivers/gpu/drm/drm_atomic_helper.c, line 2399 drivers/gpu/drm/drm_atomic_helper.c, line 2502 drivers/gpu/drm/drm_atomic_helper.c, line 2564 drivers/gpu/drm/drm_atomic_helper.c, line 2670 drivers/gpu/drm/drm_atomic_helper.c, line 2796 drivers/gpu/drm/drm_atomic_helper.c, line 2904 drivers/gpu/drm/drm_atomic_helper.c, line 2960 drivers/gpu/drm/drm_atomic_helper.c, line 3070 drivers/gpu/drm/drm_atomic_helper.c, line 3205 drivers/gpu/drm/drm_atomic_helper.c, line 3263 drivers/gpu/drm/drm_atomic_helper.c, line 3317 drivers/gpu/drm/drm_atomic_helper.c, line 3360 drivers/gpu/drm/drm_atomic_helper.c, line 3410 drivers/gpu/drm/drm_self_refresh_helper.c, line 54 drivers/gpu/drm/drm_self_refresh_helper.c, line 65 drivers/gpu/drm/drm_self_refresh_helper.c, line 140 drivers/gpu/drm/drm_self_refresh_helper.c, line 178 drivers/gpu/drm/drm_self_refresh_helper.c, line 205 include/drm/drm_self_refresh_helper.h, line 12 include/drm/drm_self_refresh_helper.h, line 16 include/drm/drm_self_refresh_helper.h, line 19