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PCIe AER: use pci_pcie_cap()
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>
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parent
06a1cbafb2
commit
39a53062cb
drivers/pci/pcie/aer
@ -295,7 +295,7 @@ static void aer_error_resume(struct pci_dev *dev)
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u16 reg16;
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/* Clean up Root device status */
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pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
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pos = pci_pcie_cap(dev);
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pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, ®16);
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pci_write_config_word(dev, pos + PCI_EXP_DEVSTA, reg16);
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@ -42,7 +42,7 @@ int pci_enable_pcie_error_reporting(struct pci_dev *dev)
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if (!pos)
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return -EIO;
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pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
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pos = pci_pcie_cap(dev);
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if (!pos)
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return -EIO;
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@ -66,7 +66,7 @@ int pci_disable_pcie_error_reporting(struct pci_dev *dev)
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if (dev->aer_firmware_first)
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return -EIO;
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pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
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pos = pci_pcie_cap(dev);
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if (!pos)
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return -EIO;
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@ -224,7 +224,7 @@ static int find_device_iter(struct pci_dev *dev, void *data)
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*/
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if (atomic_read(&dev->enable_cnt) == 0)
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return 0;
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pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
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pos = pci_pcie_cap(dev);
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if (!pos)
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return 0;
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/* Check if AER is enabled */
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@ -618,7 +618,7 @@ void aer_enable_rootport(struct aer_rpc *rpc)
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u16 reg16;
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u32 reg32;
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pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
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pos = pci_pcie_cap(pdev);
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/* Clear PCIE Capability's Device Status */
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pci_read_config_word(pdev, pos+PCI_EXP_DEVSTA, ®16);
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pci_write_config_word(pdev, pos+PCI_EXP_DEVSTA, reg16);
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