Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 04/23] net: dsa: Do not suspend/resume closed slave_dev | Date | Sat, 4 Aug 2018 11:00:55 +0200 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: Florian Fainelli <f.fainelli@gmail.com>
[ Upstream commit a94c689e6c9e72e722f28339e12dff191ee5a265 ]
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> 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> --- net/dsa/slave.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -1219,6 +1219,9 @@ int dsa_slave_suspend(struct net_device { struct dsa_slave_priv *p = netdev_priv(slave_dev); + if (!netif_running(slave_dev)) + return 0; + netif_device_detach(slave_dev); if (p->phy) { @@ -1236,6 +1239,9 @@ int dsa_slave_resume(struct net_device * { struct dsa_slave_priv *p = netdev_priv(slave_dev); + if (!netif_running(slave_dev)) + return 0; + netif_device_attach(slave_dev); if (p->phy) {
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