1 files changed, 10 insertions, 4 deletions

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index f911a2f8cc34..d06078d660ad 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -596,12 +596,18 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
                         dev_info(root->bus->bridge,
                                 "ACPI _OSC control (0x%02x) granted\n", flags);
                 } else {
-                        dev_dbg(root->bus->bridge,
-                                "ACPI _OSC request failed (code %d)\n", status);
-                        printk(KERN_INFO "Unable to assume _OSC PCIe control. "
-                                "Disabling ASPM\n");
+                        dev_info(root->bus->bridge,
+                                "ACPI _OSC request failed (%s), "
+                                "returned control mask: 0x%02x\n",
+                                acpi_format_exception(status), flags);
+                        pr_info("ACPI _OSC control for PCIe not granted, "
+                                "disabling ASPM\n");
                         pcie_no_aspm();
                 }
+        } else {
+                dev_info(root->bus->bridge,
+                         "Unable to request _OSC control "
+                         "(_OSC support mask: 0x%02x)\n", flags);
         }
 
         pci_acpi_add_bus_pm_notifier(device, root->bus);