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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Taehee Yoo <ap420073@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        George Kennedy <george.kennedy@oracle.com>
Subject: [PATCH 4.14 112/323] hsr: use netdev_err() instead of WARN_ONCE()
Date:   Thu, 20 May 2021 11:20:04 +0200
Message-Id: <20210520092123.932863052@linuxfoundation.org>
In-Reply-To: <20210520092120.115153432@linuxfoundation.org>
References: <20210520092120.115153432@linuxfoundation.org>
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From: Taehee Yoo <ap420073@gmail.com>

commit 4b793acdca0050739b99ace6a8b9e7f717f57c6b upstream.

When HSR interface is sending a frame, it finds a node with
the destination ethernet address from the list.
If there is no node, it calls WARN_ONCE().
But, using WARN_ONCE() for this situation is a little bit overdoing.
So, in this patch, the netdev_err() is used instead.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: George Kennedy <george.kennedy@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/hsr/hsr_framereg.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -310,7 +310,8 @@ void hsr_addr_subst_dest(struct hsr_node
 
 	node_dst = find_node_by_AddrA(&port->hsr->node_db, eth_hdr(skb)->h_dest);
 	if (!node_dst) {
-		WARN_ONCE(1, "%s: Unknown node\n", __func__);
+		if (net_ratelimit())
+			netdev_err(skb->dev, "%s: Unknown node\n", __func__);
 		return;
 	}
 	if (port->type != node_dst->AddrB_port)