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From:   =?UTF-8?q?Alvin=20=C5=A0ipraga?= <alvin@pqrs.dk>
To:     Andrew Lunn <andrew@lunn.ch>,
        Vivien Didelot <vivien.didelot@gmail.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Vladimir Oltean <olteanv@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>
Cc:     =?UTF-8?q?Alvin=20=C5=A0ipraga?= <alsi@bang-olufsen.dk>,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH net] net: dsa: fix spurious error message when unoffloaded port leaves bridge
Date:   Tue, 12 Oct 2021 13:27:31 +0200
Message-Id: <20211012112730.3429157-1-alvin@pqrs.dk>
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From: Alvin Šipraga <alsi@bang-olufsen.dk>

Flip the sign of a return value check, thereby suppressing the following
spurious error:

  port 2 failed to notify DSA_NOTIFIER_BRIDGE_LEAVE: -EOPNOTSUPP

... which is emitted when removing an unoffloaded DSA switch port from a
bridge.

Fixes: d371b7c92d19 ("net: dsa: Unset vlan_filtering when ports leave the bridge")
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
---
 net/dsa/switch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index 1c797ec8e2c2..6466d0539af9 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -168,7 +168,7 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds,
 		if (extack._msg)
 			dev_err(ds->dev, "port %d: %s\n", info->port,
 				extack._msg);
-		if (err && err != EOPNOTSUPP)
+		if (err && err != -EOPNOTSUPP)
 			return err;
 	}
 
-- 
2.32.0