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-rw-r--r--include/hw/xen/xen-bus.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/hw/xen/xen-bus.h b/include/hw/xen/xen-bus.h
index 713e763348..4d966a2dbb 100644
--- a/include/hw/xen/xen-bus.h
+++ b/include/hw/xen/xen-bus.h
@@ -94,7 +94,8 @@ void xen_device_frontend_printf(XenDevice *xendev, const char *key,
     G_GNUC_PRINTF(3, 4);
 
 int xen_device_frontend_scanf(XenDevice *xendev, const char *key,
-                              const char *fmt, ...);
+                              const char *fmt, ...)
+    G_GNUC_SCANF(3, 4);
 
 void xen_device_set_max_grant_refs(XenDevice *xendev, unsigned int nr_refs,
                                    Error **errp);