Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2 files changed, 27 insertions, 4 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index f2d1dafde087..e7dc653d5bd6 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -69,8 +69,8 @@
 
 #define DRV_MODULE_NAME         "tg3"
 #define PFX DRV_MODULE_NAME     ": "
-#define DRV_MODULE_VERSION      "3.48"
-#define DRV_MODULE_RELDATE      "Jan 16, 2006"
+#define DRV_MODULE_VERSION      "3.49"
+#define DRV_MODULE_RELDATE      "Feb 2, 2006"
 
 #define TG3_DEF_MAC_MODE        0
 #define TG3_DEF_RX_MODE         0
@@ -3482,6 +3482,17 @@ static void tg3_reset_task(void *_data)
         struct tg3 *tp = _data;
         unsigned int restart_timer;
 
+        tg3_full_lock(tp, 0);
+        tp->tg3_flags |= TG3_FLAG_IN_RESET_TASK;
+
+        if (!netif_running(tp->dev)) {
+                tp->tg3_flags &= ~TG3_FLAG_IN_RESET_TASK;
+                tg3_full_unlock(tp);
+                return;
+        }
+
+        tg3_full_unlock(tp);
+
         tg3_netif_stop(tp);
 
         tg3_full_lock(tp, 1);
@@ -3494,10 +3505,12 @@ static void tg3_reset_task(void *_data)
 
         tg3_netif_start(tp);
 
-        tg3_full_unlock(tp);
-
         if (restart_timer)
                 mod_timer(&tp->timer, jiffies + 1);
+
+        tp->tg3_flags &= ~TG3_FLAG_IN_RESET_TASK;
+
+        tg3_full_unlock(tp);
 }
 
 static void tg3_tx_timeout(struct net_device *dev)
@@ -6786,6 +6799,13 @@ static int tg3_close(struct net_device *dev)
 {
         struct tg3 *tp = netdev_priv(dev);
 
+        /* Calling flush_scheduled_work() may deadlock because
+         * linkwatch_event() may be on the workqueue and it will try to get
+         * the rtnl_lock which we are holding.
+         */
+        while (tp->tg3_flags & TG3_FLAG_IN_RESET_TASK)
+                msleep(1);
+
         netif_stop_queue(dev);
 
         del_timer_sync(&tp->timer);
@@ -10880,6 +10900,7 @@ static void __devexit tg3_remove_one(struct pci_dev *pdev)
         if (dev) {
                 struct tg3 *tp = netdev_priv(dev);
 
+                flush_scheduled_work();
                 unregister_netdev(dev);
                 if (tp->regs) {
                         iounmap(tp->regs);
@@ -10901,6 +10922,7 @@ static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
         if (!netif_running(dev))
                 return 0;
 
+        flush_scheduled_work();
         tg3_netif_stop(tp);
 
         del_timer_sync(&tp->timer);
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index e8243305f0e8..7f4b7f6ac40d 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2162,6 +2162,7 @@ struct tg3 {
 #define TG3_FLAG_JUMBO_RING_ENABLE      0x00800000
 #define TG3_FLAG_10_100_ONLY            0x01000000
 #define TG3_FLAG_PAUSE_AUTONEG          0x02000000
+#define TG3_FLAG_IN_RESET_TASK          0x04000000
 #define TG3_FLAG_BROKEN_CHECKSUMS       0x10000000
 #define TG3_FLAG_GOT_SERDES_FLOWCTL     0x20000000
 #define TG3_FLAG_SPLIT_MODE             0x40000000