[PATCH] rpmsg: virtio_rpmsg_bus: use dev_warn_ratelimited for msg with no recipient

From: Alexandru Ardelean
Date: Tue Sep 28 2021 - 09:29:21 EST

From: Alexandru Ardelean <ardeleanalex@xxxxxxxxx>

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

Signed-off-by: Alexandru Ardelean <ardeleanalex@xxxxxxxxx>
drivers/rpmsg/virtio_rpmsg_bus.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 8e49a3bacfc7..546f0fb66f1d 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -749,7 +749,7 @@ 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);