require_exist 912 drivers/gpu/drm/vmwgfx/vmwgfx_surface.c bool require_exist = false; require_exist 920 drivers/gpu/drm/vmwgfx/vmwgfx_surface.c require_exist = true; require_exist 947 drivers/gpu/drm/vmwgfx/vmwgfx_surface.c require_exist = true; require_exist 950 drivers/gpu/drm/vmwgfx/vmwgfx_surface.c require_exist);