netdev - [PATCH RESEND net-next 1/2] net: dsa: sja1105: fix configuration of source address learning

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210216114119.2856299-2-olteanv@gmail.com>
Date:   Tue, 16 Feb 2021 13:41:18 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>
Subject: [PATCH RESEND net-next 1/2] net: dsa: sja1105: fix configuration of source address learning

From: Vladimir Oltean <vladimir.oltean@....com>

Due to a mistake, the driver always sets the address learning flag to
the previously stored value, and not to the currently configured one.
The bug is visible only in standalone ports mode, because when the port
is bridged, the issue is masked by .port_stp_state_set which overwrites
the address learning state to the proper value.

Fixes: 4d9423549501 ("net: dsa: sja1105: offload bridge port flags to device")
Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
 drivers/net/dsa/sja1105/sja1105_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index 1dad94540cc9..3d3e2794655d 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -3282,7 +3282,7 @@ static int sja1105_port_set_learning(struct sja1105_private *priv, int port,
 
 	mac = priv->static_config.tables[BLK_IDX_MAC_CONFIG].entries;
 
-	mac[port].dyn_learn = !!(priv->learn_ena & BIT(port));
+	mac[port].dyn_learn = enabled;
 
 	rc = sja1105_dynamic_config_write(priv, BLK_IDX_MAC_CONFIG, port,
 					  &mac[port], true);
-- 
2.25.1