Bringing the interface down causes high CPU utilization. Correct fix
should probably disable rx URB, not only the rx tasklet.
Signed-off-by: Pavel Roskin <proski@xxxxxxx>
---
drivers/net/wireless/at76_usb.c | 5 -----
1 files changed, 0 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/at76_usb.c b/drivers/net/wireless/at76_usb.c
index 5577606..218641e 100644
--- a/drivers/net/wireless/at76_usb.c
+++ b/drivers/net/wireless/at76_usb.c
@@ -3445,7 +3445,6 @@ static int at76_open(struct net_device *netdev)
goto error;
}
- tasklet_enable(&priv->rx_tasklet);
schedule_delayed_work(&priv->dwork_restart, 0);
at76_dbg(DBG_PROC_ENTRY, "%s(): end", __func__);
@@ -3463,7 +3462,6 @@ static int at76_stop(struct net_device *netdev)
if (mutex_lock_interruptible(&priv->mtx))
return -EINTR;
- tasklet_disable(&priv->rx_tasklet);
at76_quiesce(priv);
if (!priv->device_unplugged) {
@@ -5375,7 +5373,6 @@ static struct at76_priv *at76_alloc_new_device(struct usb_device *udev)
priv->rx_tasklet.func = at76_rx_tasklet;
priv->rx_tasklet.data = 0;
- tasklet_disable(&priv->rx_tasklet);
priv->pm_mode = AT76_PM_OFF;
priv->pm_period = 0;
@@ -5535,8 +5532,6 @@ static void at76_delete_device(struct at76_priv *priv)
/* The device is gone, don't bother turning it off */
priv->device_unplugged = 1;
- tasklet_kill(&priv->rx_tasklet);
-
if (priv->netdev_registered)
unregister_netdev(priv->netdev);
-
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