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igb: Use PCI Express Capability accessors 

Use PCI Express Capability access functions to simplify igb driver.

[bhelgaas: split e1000e and igb into separate patches]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jiang Liu 2012-08-20 13:32:20 -06:00 committed by Bjorn Helgaas
parent f8c0fcacfe
commit 23d028cc86
1 changed files with 2 additions and 10 deletions
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12
drivers/net/ethernet/intel/igb/igb_main.c
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@ -6539,28 +6539,20 @@ static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
s32 igb_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
{
struct igb_adapter *adapter = hw->back;
u16 cap_offset;
cap_offset = adapter->pdev->pcie_cap;
if (!cap_offset)
if (pcie_capability_read_word(adapter->pdev, reg, value))
return -E1000_ERR_CONFIG;
pci_read_config_word(adapter->pdev, cap_offset + reg, value);
return 0;
}
s32 igb_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
{
struct igb_adapter *adapter = hw->back;
u16 cap_offset;
cap_offset = adapter->pdev->pcie_cap;
if (!cap_offset)
if (pcie_capability_write_word(adapter->pdev, reg, *value))
return -E1000_ERR_CONFIG;
pci_write_config_word(adapter->pdev, cap_offset + reg, *value);
return 0;
}