Merge branch 'master' of git://git.infradead.org/~dedekind/ubi-2.6

[linux-2.6-omap-h63xx.git] / net / bridge / br_if.c

diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 7b4ce9113be2e7dafb201ba47ea724e08bb2abb4..935784f736b3d0f88cff37c76140a5c22a167dd2 100644 (file)
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -29,35 +29,24 @@
  * Determine initial path cost based on speed.
  * using recommendations from 802.1d standard
  *
- * Need to simulate user ioctl because not all device's that support
- * ethtool, use ethtool_ops.  Also, since driver might sleep need to
- * not be holding any locks.
+ * Since driver might sleep need to not be holding any locks.
  */
 static int port_cost(struct net_device *dev)
 {
-       struct ethtool_cmd ecmd = { ETHTOOL_GSET };
-       struct ifreq ifr;
-       mm_segment_t old_fs;
-       int err;
-
-       strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
-       ifr.ifr_data = (void __user *) &ecmd;
-
-       old_fs = get_fs();
-       set_fs(KERNEL_DS);
-       err = dev_ethtool(&ifr);
-       set_fs(old_fs);
-
-       if (!err) {
-               switch(ecmd.speed) {
-               case SPEED_100:
-                       return 19;
-               case SPEED_1000:
-                       return 4;
-               case SPEED_10000:
-                       return 2;
-               case SPEED_10:
-                       return 100;
+       if (dev->ethtool_ops && dev->ethtool_ops->get_settings) {
+               struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET, };
+
+               if (!dev->ethtool_ops->get_settings(dev, &ecmd)) {
+                       switch(ecmd.speed) {
+                       case SPEED_10000:
+                               return 2;
+                       case SPEED_1000:
+                               return 4;
+                       case SPEED_100:
+                               return 19;
+                       case SPEED_10:
+                               return 100;
+                       }
                }
        }
 
@@ -314,7 +303,7 @@ int br_del_bridge(const char *name)
        int ret = 0;
 
        rtnl_lock();
-       dev = __dev_get_by_name(name);
+       dev = __dev_get_by_name(&init_net, name);
        if (dev == NULL)
                ret =  -ENXIO;  /* Could not find device */
 
@@ -360,43 +349,15 @@ int br_min_mtu(const struct net_bridge *br)
 void br_features_recompute(struct net_bridge *br)
 {
        struct net_bridge_port *p;
-       unsigned long features, checksum;
+       unsigned long features;
 
-       checksum = br->feature_mask & NETIF_F_ALL_CSUM ? NETIF_F_NO_CSUM : 0;
-       features = br->feature_mask & ~NETIF_F_ALL_CSUM;
+       features = br->feature_mask;
 
        list_for_each_entry(p, &br->port_list, list) {
-               unsigned long feature = p->dev->features;
-
-               /* if device needs checksumming, downgrade to hw checksumming */
-               if (checksum & NETIF_F_NO_CSUM && !(feature & NETIF_F_NO_CSUM))
-                       checksum ^= NETIF_F_NO_CSUM | NETIF_F_HW_CSUM;
-
-               /* if device can't do all checksum, downgrade to ipv4/ipv6 */
-               if (checksum & NETIF_F_HW_CSUM && !(feature & NETIF_F_HW_CSUM))
-                       checksum ^= NETIF_F_HW_CSUM
-                               | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
-
-               if (checksum & NETIF_F_IPV6_CSUM && !(feature & NETIF_F_IPV6_CSUM))
-                       checksum &= ~NETIF_F_IPV6_CSUM;
-
-               if (!(feature & NETIF_F_IP_CSUM))
-                       checksum = 0;
-
-               if (feature & NETIF_F_GSO)
-                       feature |= NETIF_F_GSO_SOFTWARE;
-               feature |= NETIF_F_GSO;
-
-               features &= feature;
+               features = netdev_compute_features(features, p->dev->features);
        }
 
-       if (!(checksum & NETIF_F_ALL_CSUM))
-               features &= ~NETIF_F_SG;
-       if (!(features & NETIF_F_SG))
-               features &= ~NETIF_F_GSO_MASK;
-
-       br->dev->features = features | checksum | NETIF_F_LLTX |
-                           NETIF_F_GSO_ROBUST;
+       br->dev->features = features;
 }
 
 /* called with RTNL */
@@ -483,7 +444,7 @@ void __exit br_cleanup_bridges(void)
        struct net_device *dev, *nxt;
 
        rtnl_lock();
-       for_each_netdev_safe(dev, nxt)
+       for_each_netdev_safe(&init_net, dev, nxt)
                if (dev->priv_flags & IFF_EBRIDGE)
                        del_br(dev->priv);
        rtnl_unlock();