bonding: Fix updating of speed/duplex changes

	This patch corrects an omission from the following commit:

commit f0c76d61779b153dbfb955db3f144c62d02173c2
Author: Jay Vosburgh <fubar@us.ibm.com>
Date:   Wed Jul 2 18:21:58 2008 -0700

    bonding: refactor mii monitor

	The un-refactored code checked the link speed and duplex of
every slave on every pass; the refactored code did not do so.

	The 802.3ad and balance-alb/tlb modes utilize the speed and
duplex information, and require it to be kept up to date.  This patch
adds a notifier check to perform the appropriate updating when the slave
device speed changes.

Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 20 insertions, 5 deletions

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index e0578fe8c0db..3d76686dceca 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3537,11 +3537,26 @@ static int bond_slave_netdev_event(unsigned long event, struct net_device *slave
                 }
                 break;
         case NETDEV_CHANGE:
-                /*
-                 * TODO: is this what we get if somebody
-                 * sets up a hierarchical bond, then rmmod's
-                 * one of the slave bonding devices?
-                 */
+                if (bond->params.mode == BOND_MODE_8023AD || bond_is_lb(bond)) {
+                        struct slave *slave;
+
+                        slave = bond_get_slave_by_dev(bond, slave_dev);
+                        if (slave) {
+                                u16 old_speed = slave->speed;
+                                u16 old_duplex = slave->duplex;
+
+                                bond_update_speed_duplex(slave);
+
+                                if (bond_is_lb(bond))
+                                        break;
+
+                                if (old_speed != slave->speed)
+                                        bond_3ad_adapter_speed_changed(slave);
+                                if (old_duplex != slave->duplex)
+                                        bond_3ad_adapter_duplex_changed(slave);
+                        }
+                }
+
                 break;
         case NETDEV_DOWN:
                 /*