This code hasn't been QOM'ified yet. Warn the user.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/display/ramfb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/display/ramfb.c b/hw/display/ramfb.c
index 79b9754a58..a4a427e5c7 100644
--- a/hw/display/ramfb.c
+++ b/hw/display/ramfb.c
@@ -18,6 +18,7 @@
 #include "hw/display/bochs-vbe.h" /* for limits */
 #include "ui/console.h"
 #include "sysemu/reset.h"
+#include "hw/qdev-deprecated.h"
 
 struct QEMU_PACKED RAMFBCfg {
     uint64_t addr;
@@ -120,6 +121,8 @@ RAMFBState *ramfb_setup(Error **errp)
     FWCfgState *fw_cfg = fw_cfg_find();
     RAMFBState *s;
 
+    qdev_warn_deprecated_function_used();
+
     if (!fw_cfg || !fw_cfg->dma_enabled) {
         error_setg(errp, "ramfb device requires fw_cfg with DMA");
         return NULL;
-- 
2.21.3