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| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2009-05-13 12:23:09 +0900 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-06-18 14:02:22 -0700 |
| commit | 3647584d9ef35c9ec4abefdbea29959c26c54f13 (patch) | |
| tree | 107167bb680a15c1581dfb3f05737cfe514c6c29 /drivers | |
| parent | efdf8288819df67d608a186f9d17a7d4051f3c1f (diff) | |
| download | linux-3.10-3647584d9ef35c9ec4abefdbea29959c26c54f13.tar.gz linux-3.10-3647584d9ef35c9ec4abefdbea29959c26c54f13.tar.bz2 linux-3.10-3647584d9ef35c9ec4abefdbea29959c26c54f13.zip | |
PCI ASPM: cleanup pcie_aspm_sanity_check
Minor cleanup for pcie_aspm_sanity_check().
Acked-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/pcie/aspm.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 26fd39caebc..04b6a309850 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -552,27 +552,24 @@ static void free_link_state(struct pcie_link_state *link) static int pcie_aspm_sanity_check(struct pci_dev *pdev) { - struct pci_dev *child_dev; - int child_pos; + struct pci_dev *child; + int pos; u32 reg32; - /* - * Some functions in a slot might not all be PCIE functions, very - * strange. Disable ASPM for the whole slot + * Some functions in a slot might not all be PCIE functions, + * very strange. Disable ASPM for the whole slot */ - list_for_each_entry(child_dev, &pdev->subordinate->devices, bus_list) { - child_pos = pci_find_capability(child_dev, PCI_CAP_ID_EXP); - if (!child_pos) + list_for_each_entry(child, &pdev->subordinate->devices, bus_list) { + pos = pci_find_capability(child, PCI_CAP_ID_EXP); + if (!pos) return -EINVAL; - /* * Disable ASPM for pre-1.1 PCIe device, we follow MS to use * RBER bit to determine if a function is 1.1 version device */ - pci_read_config_dword(child_dev, child_pos + PCI_EXP_DEVCAP, - ®32); + pci_read_config_dword(child, pos + PCI_EXP_DEVCAP, ®32); if (!(reg32 & PCI_EXP_DEVCAP_RBER) && !aspm_force) { - dev_printk(KERN_INFO, &child_dev->dev, "disabling ASPM" + dev_printk(KERN_INFO, &child->dev, "disabling ASPM" " on pre-1.1 PCIe device. You can enable it" " with 'pcie_aspm=force'\n"); return -EINVAL; |