1 files changed, 47 insertions, 0 deletions

diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 26130ae438da..90038d45a547 100644
--- 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,