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e1000e: drop stats lock

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the stats lock is left over from e1000, e1000e no longer
has the adjust tbi stats function that required the addition
of the stats lock to begin with.

adding a mutex to acquire_swflag helped catch this one too.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jesse Brandeburg 2008-10-02 16:33:35 -07:00 committed by Linus Torvalds
parent 23033fad5b
commit 4fa7553a07
2 changed files with 0 additions and 19 deletions
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1
drivers/net/e1000e/e1000.h
View File

@ -257,7 +257,6 @@ struct e1000_adapter {
struct net_device *netdev;
struct pci_dev *pdev;
struct net_device_stats net_stats;
spinlock_t stats_lock; /* prevent concurrent stats updates */
/* structs defined in e1000_hw.h */
struct e1000_hw hw;

18
drivers/net/e1000e/netdev.c
View File

@ -2600,8 +2600,6 @@ static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
/* Explicitly disable IRQ since the NIC can be in any state. */
e1000_irq_disable(adapter);
spin_lock_init(&adapter->stats_lock);
set_bit(__E1000_DOWN, &adapter->state);
return 0;
@ -2953,7 +2951,6 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
struct pci_dev *pdev = adapter->pdev;
unsigned long irq_flags;
/*
* Prevent stats update while adapter is being reset, or if the pci
@ -2964,14 +2961,6 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
if (pci_channel_offline(pdev))
return;
spin_lock_irqsave(&adapter->stats_lock, irq_flags);
/*
* these counters are modified from e1000_adjust_tbi_stats,
* called from the interrupt context, so they must only
* be written while holding adapter->stats_lock
*/
adapter->stats.crcerrs += er32(CRCERRS);
adapter->stats.gprc += er32(GPRC);
adapter->stats.gorc += er32(GORCL);
@ -3046,8 +3035,6 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
adapter->stats.mgptc += er32(MGTPTC);
adapter->stats.mgprc += er32(MGTPRC);
adapter->stats.mgpdc += er32(MGTPDC);
spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
}
/**
@ -3059,9 +3046,6 @@ static void e1000_phy_read_status(struct e1000_adapter *adapter)
struct e1000_hw *hw = &adapter->hw;
struct e1000_phy_regs *phy = &adapter->phy_regs;
int ret_val;
unsigned long irq_flags;
spin_lock_irqsave(&adapter->stats_lock, irq_flags);
if ((er32(STATUS) & E1000_STATUS_LU) &&
(adapter->hw.phy.media_type == e1000_media_type_copper)) {
@ -3092,8 +3076,6 @@ static void e1000_phy_read_status(struct e1000_adapter *adapter)
phy->stat1000 = 0;
phy->estatus = (ESTATUS_1000_TFULL | ESTATUS_1000_THALF);
}
spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
}
static void e1000_print_link_info(struct e1000_adapter *adapter)