diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index a154cab..c3a36cf 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -2103,7 +2103,7 @@
 	int ret;
 
 	if (idx < 0) {
-		pr_warn("deleting an unspecified loop device is not supported.\n");
+		pr_warn_once("deleting an unspecified loop device is not supported.\n");
 		return -EINVAL;
 	}