net: dsa: Do not suspend/resume closed slave_dev
[ Upstream commitpull/10/heada94c689e6c
] 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
8721f36089
commit
bcbdea1371
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@ -1219,6 +1219,9 @@ int dsa_slave_suspend(struct net_device *slave_dev)
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{
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struct dsa_slave_priv *p = netdev_priv(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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if (p->phy) {
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@ -1236,6 +1239,9 @@ int dsa_slave_resume(struct net_device *slave_dev)
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{
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struct dsa_slave_priv *p = netdev_priv(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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if (p->phy) {
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