Messages in this thread Patch in this message | | | From | Florian Fainelli <> | Subject | [PATCH net] net: dsa: Do not suspend/resume closed slave_dev | Date | Tue, 31 Jul 2018 17:12:52 -0700 |
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If a DSA slave network device was previously disabled, there is no need to suspend or resume it.
Fixes: 2446254915a7 ("net: dsa: allow switch drivers to implement suspend/resume hooks") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> --- net/dsa/slave.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/net/dsa/slave.c b/net/dsa/slave.c index 1e3b6a6d8a40..732369c80644 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -1248,6 +1248,9 @@ int dsa_slave_suspend(struct net_device *slave_dev) { struct dsa_port *dp = dsa_slave_to_port(slave_dev); + if (!netif_running(slave_dev)) + return 0; + netif_device_detach(slave_dev); rtnl_lock(); @@ -1261,6 +1264,9 @@ int dsa_slave_resume(struct net_device *slave_dev) { struct dsa_port *dp = dsa_slave_to_port(slave_dev); + if (!netif_running(slave_dev)) + return 0; + netif_device_attach(slave_dev); rtnl_lock(); -- 2.14.1
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