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| author | Bjorn Helgaas <bhelgaas@google.com> | 2013-02-02 22:34:19 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-02-02 22:34:19 +0100 |
| commit | ecb87e6609d3a559eacf7a61f5b4e088a797d07c (patch) | |
| tree | 467eb9d56301a758a699fc6e1cb20de39248f76b /drivers/pci | |
| parent | Merge branch 'pci/yinghai-root-bus-hotplug' into next (diff) | |
| parent | PCI/ASPM: Don't touch ASPM if forcibly disabled (diff) | |
| download | linux-ecb87e6609d3a559eacf7a61f5b4e088a797d07c.tar.xz linux-ecb87e6609d3a559eacf7a61f5b4e088a797d07c.zip | |
Merge branch 'pci/joe-aspm' into next
* pci/joe-aspm:
PCI/ASPM: Don't touch ASPM if forcibly disabled
PCI/ASPM: Deallocate upstream link state even if device is not PCIe
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pcie/aspm.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index b52630b8eada..e8a19772cf52 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -556,6 +556,9 @@ void pcie_aspm_init_link_state(struct pci_dev *pdev) struct pcie_link_state *link; int blacklist = !!pcie_aspm_sanity_check(pdev); + if (!aspm_support_enabled) + return; + if (!pci_is_pcie(pdev) || pdev->link_state) return; if (pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT && @@ -634,10 +637,7 @@ void pcie_aspm_exit_link_state(struct pci_dev *pdev) struct pci_dev *parent = pdev->bus->self; struct pcie_link_state *link, *root, *parent_link; - if (!pci_is_pcie(pdev) || !parent || !parent->link_state) - return; - if ((pci_pcie_type(parent) != PCI_EXP_TYPE_ROOT_PORT) && - (pci_pcie_type(parent) != PCI_EXP_TYPE_DOWNSTREAM)) + if (!parent || !parent->link_state) return; down_read(&pci_bus_sem); |