atl1: Do not wake queue before queue has been started.

Based upon a bug report by Alexey Dobriyan, the patch is
also tested by him and confirmed to fix the problem.

Packet flow during link state events should not be done by
waking and stopping the TX queue anyways, that is handled
transparently by netif_carrier_{on,off}().

So, remove the netif_{wake,stop}_queue() calls in the link
check code, and add the necessary netif_start_queue() call
to atl1_up().

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c
index 3e22e7817bc34bb53f5ff7d1f20e5fa47677a5c6..f12e3d12474b0701a5a72baaf0d4213d5f36203d 100644 (file)
--- a/drivers/net/atlx/atl1.c
+++ b/drivers/net/atlx/atl1.c
@@ -1308,7 +1308,6 @@ static u32 atl1_check_link(struct atl1_adapter *adapter)
                                dev_info(&adapter->pdev->dev, "link is down\n");
                        adapter->link_speed = SPEED_0;
                        netif_carrier_off(netdev);
-                       netif_stop_queue(netdev);
                }
                return 0;
        }
@@ -1358,7 +1357,6 @@ static u32 atl1_check_link(struct atl1_adapter *adapter)
                if (!netif_carrier_ok(netdev)) {
                        /* Link down -> Up */
                        netif_carrier_on(netdev);
-                       netif_wake_queue(netdev);
                }
                return 0;
        }
@@ -2627,6 +2625,7 @@ static s32 atl1_up(struct atl1_adapter *adapter)
        mod_timer(&adapter->watchdog_timer, jiffies);
        atlx_irq_enable(adapter);
        atl1_check_link(adapter);
+       netif_start_queue(netdev);
        return 0;
 
 err_up: