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PCIe AER: use pci_pcie_cap()

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Use pcie_cap() instead of pci_find_capability() to get PCIe capability
offset in PCIe AER driver. This avoids unnecessary search in PCI
configuration space.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Kenji Kaneshige 2009-11-11 14:31:38 +09:00 committed by Jesse Barnes
parent 06a1cbafb2
commit 39a53062cb
2 changed files with 5 additions and 5 deletions
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2
drivers/pci/pcie/aer/aerdrv.c
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@ -295,7 +295,7 @@ static void aer_error_resume(struct pci_dev *dev)
u16 reg16;
/* Clean up Root device status */
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(dev);
pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &reg16);
pci_write_config_word(dev, pos + PCI_EXP_DEVSTA, reg16);

8
drivers/pci/pcie/aer/aerdrv_core.c
View file

@ -42,7 +42,7 @@ int pci_enable_pcie_error_reporting(struct pci_dev *dev)
if (!pos)
return -EIO;
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(dev);
if (!pos)
return -EIO;
@ -66,7 +66,7 @@ int pci_disable_pcie_error_reporting(struct pci_dev *dev)
if (dev->aer_firmware_first)
return -EIO;
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(dev);
if (!pos)
return -EIO;
@ -224,7 +224,7 @@ static int find_device_iter(struct pci_dev *dev, void *data)
*/
if (atomic_read(&dev->enable_cnt) == 0)
return 0;
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(dev);
if (!pos)
return 0;
/* Check if AER is enabled */
@ -618,7 +618,7 @@ void aer_enable_rootport(struct aer_rpc *rpc)
u16 reg16;
u32 reg32;
pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(pdev);
/* Clear PCIE Capability's Device Status */
pci_read_config_word(pdev, pos+PCI_EXP_DEVSTA, &reg16);
pci_write_config_word(pdev, pos+PCI_EXP_DEVSTA, reg16);