Merge branch 'sh/for-2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...

[mirror_ubuntu-artful-kernel.git] / net / dsa / slave.c

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 37616884b8a9c624f85ecf9350b9758e16aa0bfb..1af5a79309e9c2b1e38a4fbf039fb5d0c4d90284 100644 (file)
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -10,6 +10,7 @@
 
 #include <linux/list.h>
 #include <linux/netdevice.h>
+#include <linux/etherdevice.h>
 #include <linux/phy.h>
 #include "dsa_priv.h"
 
@@ -49,11 +50,57 @@ void dsa_slave_mii_bus_init(struct dsa_switch *ds)
 /* slave device handling ****************************************************/
 static int dsa_slave_open(struct net_device *dev)
 {
+       struct dsa_slave_priv *p = netdev_priv(dev);
+       struct net_device *master = p->parent->master_netdev;
+       int err;
+
+       if (!(master->flags & IFF_UP))
+               return -ENETDOWN;
+
+       if (compare_ether_addr(dev->dev_addr, master->dev_addr)) {
+               err = dev_unicast_add(master, dev->dev_addr, ETH_ALEN);
+               if (err < 0)
+                       goto out;
+       }
+
+       if (dev->flags & IFF_ALLMULTI) {
+               err = dev_set_allmulti(master, 1);
+               if (err < 0)
+                       goto del_unicast;
+       }
+       if (dev->flags & IFF_PROMISC) {
+               err = dev_set_promiscuity(master, 1);
+               if (err < 0)
+                       goto clear_allmulti;
+       }
+
        return 0;
+
+clear_allmulti:
+       if (dev->flags & IFF_ALLMULTI)
+               dev_set_allmulti(master, -1);
+del_unicast:
+       if (compare_ether_addr(dev->dev_addr, master->dev_addr))
+               dev_unicast_delete(master, dev->dev_addr, ETH_ALEN);
+out:
+       return err;
 }
 
 static int dsa_slave_close(struct net_device *dev)
 {
+       struct dsa_slave_priv *p = netdev_priv(dev);
+       struct net_device *master = p->parent->master_netdev;
+
+       dev_mc_unsync(master, dev);
+       dev_unicast_unsync(master, dev);
+       if (dev->flags & IFF_ALLMULTI)
+               dev_set_allmulti(master, -1);
+       if (dev->flags & IFF_PROMISC)
+               dev_set_promiscuity(master, -1);
+
+       if (compare_ether_addr(dev->dev_addr, master->dev_addr))
+               dev_unicast_delete(master, dev->dev_addr, ETH_ALEN);
+
        return 0;
 }
 
@@ -77,9 +124,30 @@ static void dsa_slave_set_rx_mode(struct net_device *dev)
        dev_unicast_sync(master, dev);
 }
 
-static int dsa_slave_set_mac_address(struct net_device *dev, void *addr)
+static int dsa_slave_set_mac_address(struct net_device *dev, void *a)
 {
-       memcpy(dev->dev_addr, addr + 2, 6);
+       struct dsa_slave_priv *p = netdev_priv(dev);
+       struct net_device *master = p->parent->master_netdev;
+       struct sockaddr *addr = a;
+       int err;
+
+       if (!is_valid_ether_addr(addr->sa_data))
+               return -EADDRNOTAVAIL;
+
+       if (!(dev->flags & IFF_UP))
+               goto out;
+
+       if (compare_ether_addr(addr->sa_data, master->dev_addr)) {
+               err = dev_unicast_add(master, addr->sa_data, ETH_ALEN);
+               if (err < 0)
+                       return err;
+       }
+
+       if (compare_ether_addr(dev->dev_addr, master->dev_addr))
+               dev_unicast_delete(master, dev->dev_addr, ETH_ALEN);
+
+out:
+       memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
 
        return 0;
 }