e1000e: link reporting problems

[pandora-kernel.git] / drivers / net / e1000e / ethtool.c

diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c
index 3d73f20..67e06fd 100644 (file)
--- a/drivers/net/e1000e/ethtool.c
+++ b/drivers/net/e1000e/ethtool.c
@@ -190,6 +190,17 @@ static int e1000_get_settings(struct net_device *netdev,
 static u32 e1000_get_link(struct net_device *netdev)
 {
        struct e1000_adapter *adapter = netdev_priv(netdev);
+       struct e1000_mac_info *mac = &adapter->hw.mac;
+
+       /*
+        * If the link is not reported up to netdev, interrupts are disabled,
+        * and so the physical link state may have changed since we last
+        * looked. Set get_link_status to make sure that the true link
+        * state is interrogated, rather than pulling a cached and possibly
+        * stale link state from the driver.
+        */
+       if (!netif_carrier_ok(netdev))
+               mac->get_link_status = 1;
 
        return e1000_has_link(adapter);
 }