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authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>2009-05-13 12:23:09 +0900
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-06-18 14:02:22 -0700
commit3647584d9ef35c9ec4abefdbea29959c26c54f13 (patch)
tree107167bb680a15c1581dfb3f05737cfe514c6c29 /drivers/pci
parentefdf8288819df67d608a186f9d17a7d4051f3c1f (diff)
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/pci')
-rw-r--r--drivers/pci/pcie/aspm.c21
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,
- &reg32);
+ pci_read_config_dword(child, pos + PCI_EXP_DEVCAP, &reg32);
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;