linux-kernel - [PATCH AUTOSEL 5.15 18/21] net: dsa: hellcreek: Print warning only once

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Message-Id: <20220910211752.70291-18-sashal@kernel.org>
Date:   Sat, 10 Sep 2022 17:17:49 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Kurt Kanzenbach <kurt@...utronix.de>, Andrew Lunn <andrew@...n.ch>,
        Vladimir Oltean <olteanv@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Sasha Levin <sashal@...nel.org>, vivien.didelot@...il.com,
        f.fainelli@...il.com, davem@...emloft.net, edumazet@...gle.com,
        pabeni@...hat.com, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.15 18/21] net: dsa: hellcreek: Print warning only once

From: Kurt Kanzenbach <kurt@...utronix.de>

[ Upstream commit 52267ce25f60f37ae40ccbca0b21328ebae5ae75 ]

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@...utronix.de>
Reviewed-by: Andrew Lunn <andrew@...n.ch>
Reviewed-by: Vladimir Oltean <olteanv@...il.com>
Link: https://lore.kernel.org/r/20220830163448.8921-1-kurt@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/dsa/tag_hellcreek.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/dsa/tag_hellcreek.c b/net/dsa/tag_hellcreek.c
index eb204ad36eeec..846588c0070a5 100644
--- 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;
 	}
 
-- 
2.35.1