cleaups

	up_read(&pci_bus_sem);

}

/* @pdev: the root port or switch downstream port */

void pcie_aspm_pm_state_change(struct pci_dev *pdev)

{

	struct pcie_link_state *link = pdev->link_state;

	if (aspm_disabled || !link)

		return;

	/*

	 * Devices changed PM state, we should recheck if latency

	 * meets all functions' requirement

	 */

	down_read(&pci_bus_sem);

	mutex_lock(&aspm_lock);

	pcie_update_aspm_capable(link->root);

	pcie_config_aspm_path(link);

	mutex_unlock(&aspm_lock);

	up_read(&pci_bus_sem);

}

void pcie_aspm_powersave_config_link(struct pci_dev *pdev)

{

	struct pcie_link_state *link = pdev->link_state;

	return 0;

}

static int __pci_enable_link_state(struct pci_dev *pdev, int state, bool locked)

/**

 * pci_enable_link_state - Clear and set the default device link state so that

 * the link may be allowed to enter the specified states. Note that if the

 * BIOS didn't grant ASPM control to the OS, this does nothing because we can't

 * touch the LNKCTL register. Also note that this does not enable states

 * disabled by pci_disable_link_state(). Return 0 or a negative errno.

 *

 * @pdev: PCI device

 * @state: Mask of ASPM link states to enable

 */

int pci_enable_link_state(struct pci_dev *pdev, int state)

{

	return __pci_enable_link_state(pdev, state, false);

}

	if (i == aspm_policy)

		return 0;

	if (!locked)

	down_read(&pci_bus_sem);

	mutex_lock(&aspm_lock);

	aspm_policy = i;