diff options
Diffstat (limited to 'drivers/net/netxen')
| -rw-r--r-- | drivers/net/netxen/netxen_nic.h | 17 | ||||
| -rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 19 |
2 files changed, 18 insertions, 18 deletions
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h index 7f20a03623a0..181ac0277744 100644 --- a/drivers/net/netxen/netxen_nic.h +++ b/drivers/net/netxen/netxen_nic.h @@ -95,23 +95,6 @@ #define ADDR_IN_WINDOW1(off) \ ((off > NETXEN_CRB_PCIX_HOST2) && (off < NETXEN_CRB_MAX)) ? 1 : 0 -/* - * In netxen_nic_down(), we must wait for any pending callback requests into - * netxen_watchdog_task() to complete; eg otherwise the watchdog_timer could be - * reenabled right after it is deleted in netxen_nic_down(). FLUSH_SCHEDULED_WORK() - * does this synchronization. - * - * Normally, schedule_work()/flush_scheduled_work() could have worked, but - * netxen_nic_close() is invoked with kernel rtnl lock held. netif_carrier_off() - * call in netxen_nic_close() triggers a schedule_work(&linkwatch_work), and a - * subsequent call to flush_scheduled_work() in netxen_nic_down() would cause - * linkwatch_event() to be executed which also attempts to acquire the rtnl - * lock thus causing a deadlock. - */ - -#define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp) -#define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq) -extern struct workqueue_struct *netxen_workq; /* * normalize a 64MB crb address to 32MB PCI window diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index a8fb439a4d03..7144c255ce54 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -86,7 +86,24 @@ static struct pci_device_id netxen_pci_tbl[] __devinitdata = { MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); -struct workqueue_struct *netxen_workq; +/* + * In netxen_nic_down(), we must wait for any pending callback requests into + * netxen_watchdog_task() to complete; eg otherwise the watchdog_timer could be + * reenabled right after it is deleted in netxen_nic_down(). + * FLUSH_SCHEDULED_WORK() does this synchronization. + * + * Normally, schedule_work()/flush_scheduled_work() could have worked, but + * netxen_nic_close() is invoked with kernel rtnl lock held. netif_carrier_off() + * call in netxen_nic_close() triggers a schedule_work(&linkwatch_work), and a + * subsequent call to flush_scheduled_work() in netxen_nic_down() would cause + * linkwatch_event() to be executed which also attempts to acquire the rtnl + * lock thus causing a deadlock. + */ + +static struct workqueue_struct *netxen_workq; +#define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp) +#define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq) + static void netxen_watchdog(unsigned long); static void netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, |
