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atl1c:use common_task instead of reset_task and link_chg_task 

use common_task instead of reset_task and link_chg_task, so it fix "call cancel_work_sync
from the work itself".

Signed-off-by: Jie Yang <jie.yang@atheros.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jie Yang 2009-12-06 23:16:58 +00:00 committed by David S. Miller
parent 4b45e3424e
commit cb19054697
2 changed files with 37 additions and 41 deletions
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6
drivers/net/atl1c/atl1c.h
View File

@ -555,6 +555,9 @@ struct atl1c_adapter {
#define __AT_TESTING 0x0001
#define __AT_RESETTING 0x0002
#define __AT_DOWN 0x0003
u8 work_event;
#define ATL1C_WORK_EVENT_RESET 0x01
#define ATL1C_WORK_EVENT_LINK_CHANGE 0x02
u32 msg_enable;
bool have_msi;
@ -566,8 +569,7 @@ struct atl1c_adapter {
spinlock_t tx_lock;
atomic_t irq_sem;
struct work_struct reset_task;
struct work_struct link_chg_task;
struct work_struct common_task;
struct timer_list watchdog_timer;
struct timer_list phy_config_timer;

72
drivers/net/atl1c/atl1c_main.c
View File

@ -198,27 +198,12 @@ static void atl1c_phy_config(unsigned long data)
void atl1c_reinit_locked(struct atl1c_adapter *adapter)
{
WARN_ON(in_interrupt());
atl1c_down(adapter);
atl1c_up(adapter);
clear_bit(__AT_RESETTING, &adapter->flags);
}
static void atl1c_reset_task(struct work_struct *work)
{
struct atl1c_adapter *adapter;
struct net_device *netdev;
adapter = container_of(work, struct atl1c_adapter, reset_task);
netdev = adapter->netdev;
netif_device_detach(netdev);
atl1c_down(adapter);
atl1c_up(adapter);
netif_device_attach(netdev);
}
static void atl1c_check_link_status(struct atl1c_adapter *adapter)
{
struct atl1c_hw *hw = &adapter->hw;
@ -275,18 +260,6 @@ static void atl1c_check_link_status(struct atl1c_adapter *adapter)
}
}
/*
* atl1c_link_chg_task - deal with link change event Out of interrupt context
* @netdev: network interface device structure
*/
static void atl1c_link_chg_task(struct work_struct *work)
{
struct atl1c_adapter *adapter;
adapter = container_of(work, struct atl1c_adapter, link_chg_task);
atl1c_check_link_status(adapter);
}
static void atl1c_link_chg_event(struct atl1c_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
@ -311,19 +284,39 @@ static void atl1c_link_chg_event(struct atl1c_adapter *adapter)
adapter->link_speed = SPEED_0;
}
}
schedule_work(&adapter->link_chg_task);
adapter->work_event |= ATL1C_WORK_EVENT_LINK_CHANGE;
schedule_work(&adapter->common_task);
}
static void atl1c_common_task(struct work_struct *work)
{
struct atl1c_adapter *adapter;
struct net_device *netdev;
adapter = container_of(work, struct atl1c_adapter, common_task);
netdev = adapter->netdev;
if (adapter->work_event & ATL1C_WORK_EVENT_RESET) {
netif_device_detach(netdev);
atl1c_down(adapter);
atl1c_up(adapter);
netif_device_attach(netdev);
return;
}
if (adapter->work_event & ATL1C_WORK_EVENT_LINK_CHANGE)
atl1c_check_link_status(adapter);
return;
}
static void atl1c_del_timer(struct atl1c_adapter *adapter)
{
del_timer_sync(&adapter->phy_config_timer);
}
static void atl1c_cancel_work(struct atl1c_adapter *adapter)
{
cancel_work_sync(&adapter->reset_task);
cancel_work_sync(&adapter->link_chg_task);
}
/*
* atl1c_tx_timeout - Respond to a Tx Hang
@ -334,7 +327,8 @@ static void atl1c_tx_timeout(struct net_device *netdev)
struct atl1c_adapter *adapter = netdev_priv(netdev);
/* Do the reset outside of interrupt context */
schedule_work(&adapter->reset_task);
adapter->work_event |= ATL1C_WORK_EVENT_RESET;
schedule_work(&adapter->common_task);
}
/*
@ -1539,7 +1533,8 @@ static irqreturn_t atl1c_intr(int irq, void *data)
/* reset MAC */
hw->intr_mask &= ~ISR_ERROR;
AT_WRITE_REG(hw, REG_IMR, hw->intr_mask);
schedule_work(&adapter->reset_task);
adapter->work_event |= ATL1C_WORK_EVENT_RESET;
schedule_work(&adapter->common_task);
break;
}
@ -2208,8 +2203,7 @@ void atl1c_down(struct atl1c_adapter *adapter)
struct net_device *netdev = adapter->netdev;
atl1c_del_timer(adapter);
atl1c_cancel_work(adapter);
adapter->work_event = 0; /* clear all event */
/* signal that we're down so the interrupt handler does not
* reschedule our watchdog timer */
set_bit(__AT_DOWN, &adapter->flags);
@ -2609,8 +2603,8 @@ static int __devinit atl1c_probe(struct pci_dev *pdev,
adapter->hw.mac_addr[4], adapter->hw.mac_addr[5]);
atl1c_hw_set_mac_addr(&adapter->hw);
INIT_WORK(&adapter->reset_task, atl1c_reset_task);
INIT_WORK(&adapter->link_chg_task, atl1c_link_chg_task);
INIT_WORK(&adapter->common_task, atl1c_common_task);
adapter->work_event = 0;
err = register_netdev(netdev);
if (err) {
dev_err(&pdev->dev, "register netdevice failed\n");