net: dsa: hellcreek: Print warning only once

In case the source port cannot be decoded, print the warning only once. This
still brings attention to the user and does not spam the logs at the same time.

Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20220830163448.8921-1-kurt@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/dsa/tag_hellcreek.c b/net/dsa/tag_hellcreek.c
index eb204ad36eeec083f9f4bf8f9ff89baf06eea72f..846588c0070a5e2a43afee4a1bb553203643d51f 100644 (file)
--- a/net/dsa/tag_hellcreek.c
+++ b/net/dsa/tag_hellcreek.c
@@ -45,7 +45,7 @@ static struct sk_buff *hellcreek_rcv(struct sk_buff *skb,
 
        skb->dev = dsa_master_find_slave(dev, 0, port);
        if (!skb->dev) {
-               netdev_warn(dev, "Failed to get source port: %d\n", port);
+               netdev_warn_once(dev, "Failed to get source port: %d\n", port);
                return NULL;
        }