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PCIe PME: use pci_pcie_cap() 

Use pci_pcie_cap() instead of pci_find_capability() to get PCIe
capability offset. This reduces redundant 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 2010-02-22 14:13:39 +09:00 committed by Jesse Barnes
parent 6cbf82148f
commit b16694f70c
1 changed files with 4 additions and 4 deletions
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8
drivers/pci/pcie/pme/pcie_pme.c
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@ -105,7 +105,7 @@ static void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable)
int rtctl_pos;
u16 rtctl;
rtctl_pos = pci_find_capability(dev, PCI_CAP_ID_EXP) + PCI_EXP_RTCTL;
rtctl_pos = pci_pcie_cap(dev) + PCI_EXP_RTCTL;
pci_read_config_word(dev, rtctl_pos, &rtctl);
if (enable)
@ -124,7 +124,7 @@ static void pcie_pme_clear_status(struct pci_dev *dev)
int rtsta_pos;
u32 rtsta;
rtsta_pos = pci_find_capability(dev, PCI_CAP_ID_EXP) + PCI_EXP_RTSTA;
rtsta_pos = pci_pcie_cap(dev) + PCI_EXP_RTSTA;
pci_read_config_dword(dev, rtsta_pos, &rtsta);
rtsta |= PCI_EXP_RTSTA_PME;
@ -278,7 +278,7 @@ static void pcie_pme_work_fn(struct work_struct *work)
int rtsta_pos;
u32 rtsta;
rtsta_pos = pci_find_capability(port, PCI_CAP_ID_EXP) + PCI_EXP_RTSTA;
rtsta_pos = pci_pcie_cap(port) + PCI_EXP_RTSTA;
spin_lock_irq(&data->lock);
@ -332,7 +332,7 @@ static irqreturn_t pcie_pme_irq(int irq, void *context)
port = ((struct pcie_device *)context)->port;
data = get_service_data((struct pcie_device *)context);
rtsta_pos = pci_find_capability(port, PCI_CAP_ID_EXP) + PCI_EXP_RTSTA;
rtsta_pos = pci_pcie_cap(port) + PCI_EXP_RTSTA;
spin_lock_irqsave(&data->lock, flags);
pci_read_config_dword(port, rtsta_pos, &rtsta);