net: dsa: Do not suspend/resume closed slave_dev
If a DSA slave network device was previously disabled, there is no need
to suspend or resume it.
Fixes: 2446254915
("net: dsa: allow switch drivers to implement suspend/resume hooks")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
zero-colors
parent
bc5b6c0b62
commit
a94c689e6c
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@ -1248,6 +1248,9 @@ int dsa_slave_suspend(struct net_device *slave_dev)
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{
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{
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struct dsa_port *dp = dsa_slave_to_port(slave_dev);
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struct dsa_port *dp = dsa_slave_to_port(slave_dev);
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if (!netif_running(slave_dev))
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return 0;
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netif_device_detach(slave_dev);
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netif_device_detach(slave_dev);
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rtnl_lock();
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rtnl_lock();
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@ -1261,6 +1264,9 @@ int dsa_slave_resume(struct net_device *slave_dev)
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{
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{
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struct dsa_port *dp = dsa_slave_to_port(slave_dev);
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struct dsa_port *dp = dsa_slave_to_port(slave_dev);
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if (!netif_running(slave_dev))
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return 0;
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netif_device_attach(slave_dev);
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netif_device_attach(slave_dev);
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rtnl_lock();
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rtnl_lock();
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