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Commit b16694f7 authored by Kenji Kaneshige's avatar Kenji Kaneshige Committed by Jesse Barnes
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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: default avatarKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent 6cbf8214

drivers/pci/pcie/pme/pcie_pme.c

+4 −4
Original line number Diff line number Diff line
@@ -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);