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net: dsa: don't fail to probe if we couldn't set the MTU

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There is no reason to fail the probing of the switch if the MTU couldn't
be configured correctly (either the switch port itself, or the host
port) for whatever reason. MTU-sized traffic probably won't work, sure,
but we can still probably limp on and support some form of communication
anyway, which the users would probably appreciate more.

Fixes: bfcb813203 ("net: dsa: configure the MTU for switch ports")
Reported-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2020-04-21 20:18:53 +03:00 committed by David S. Miller
parent a1211bf9a7
commit 72579e14a1
1 changed files with 3 additions and 5 deletions
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8
net/dsa/slave.c
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@ -1770,11 +1770,9 @@ int dsa_slave_create(struct dsa_port *port)
rtnl_lock();
ret = dsa_slave_change_mtu(slave_dev, ETH_DATA_LEN);
rtnl_unlock();
if (ret && ret != -EOPNOTSUPP) {
dev_err(ds->dev, "error %d setting MTU on port %d\n",
ret, port->index);
goto out_free;
}
if (ret)
dev_warn(ds->dev, "nonfatal error %d setting MTU on port %d\n",
ret, port->index);
netif_carrier_off(slave_dev);