Merge tag 'xfs-4.12-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

[karo-tx-linux.git] / net / dsa / dsa.c

diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 26130ae438da53f3f99a4e9fa712a572f40ca779..90038d45a54764df55017b46258dc772b0af1c96 100644 (file)
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -223,6 +223,53 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev,
        return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+int dsa_switch_suspend(struct dsa_switch *ds)
+{
+       int i, ret = 0;
+
+       /* Suspend slave network devices */
+       for (i = 0; i < ds->num_ports; i++) {
+               if (!dsa_is_port_initialized(ds, i))
+                       continue;
+
+               ret = dsa_slave_suspend(ds->ports[i].netdev);
+               if (ret)
+                       return ret;
+       }
+
+       if (ds->ops->suspend)
+               ret = ds->ops->suspend(ds);
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(dsa_switch_suspend);
+
+int dsa_switch_resume(struct dsa_switch *ds)
+{
+       int i, ret = 0;
+
+       if (ds->ops->resume)
+               ret = ds->ops->resume(ds);
+
+       if (ret)
+               return ret;
+
+       /* Resume slave network devices */
+       for (i = 0; i < ds->num_ports; i++) {
+               if (!dsa_is_port_initialized(ds, i))
+                       continue;
+
+               ret = dsa_slave_resume(ds->ports[i].netdev);
+               if (ret)
+                       return ret;
+       }
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(dsa_switch_resume);
+#endif
+
 static struct packet_type dsa_pack_type __read_mostly = {
        .type   = cpu_to_be16(ETH_P_XDSA),
        .func   = dsa_switch_rcv,