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i40evf: stop the watchdog for shutdown 

Stop the watchdog during shutdown. Failing to do this causes a log full
of admin queue errors and the occasional hang when the system is shut
down.

Change-ID: Ib2fd11213cca2fa589eb68577e86b1000c23c250
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
hifive-unleashed-5.1
Mitch Williams 2015-01-09 11:18:18 +00:00 committed by Jeff Kirsher
parent 8b011ebb5c
commit 00293fdc42
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/intel/i40evf/i40evf_main.c
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@ -2213,12 +2213,18 @@ err:
static void i40evf_shutdown(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct i40evf_adapter *adapter = netdev_priv(netdev);
netif_device_detach(netdev);
if (netif_running(netdev))
i40evf_close(netdev);
/* Prevent the watchdog from running. */
adapter->state = __I40EVF_REMOVE;
adapter->aq_required = 0;
adapter->aq_pending = 0;
#ifdef CONFIG_PM
pci_save_state(pdev);