rpmsg: virtio_rpmsg_bus: use dev_warn_ratelimited for msg with no recipient

Even though it may be user-space's fault for this error (some application
terminated or crashed without cleaning up it's endpoint), the rpmsg
communication should not overflow the syslog with too many messages.

A dev_warn_ratelimited() seems like a good alternative in case this can
occur.

Signed-off-by: Alexandru Ardelean <[email protected]>
Signed-off-by: Bjorn Andersson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: commodo

drivers/rpmsg/virtio_rpmsg_bus.c

@@ -748,7 +748,7 @@ static int rpmsg_recv_single(struct virtproc_info *vrp, struct device *dev,
 		/* farewell, ept, we don't need you anymore */
 		kref_put(&ept->refcount, __ept_release);
 	} else
-		dev_warn(dev, "msg received with no recipient\n");
+		dev_warn_ratelimited(dev, "msg received with no recipient\n");
 
 	/* publish the real size of the buffer */
 	rpmsg_sg_init(&sg, msg, vrp->buf_size);