Index: linux.git/drivers/pci/pci.c
===================================================================
--- linux.git.orig/drivers/pci/pci.c	2012-12-06 10:57:31.485231614 +0800
+++ linux.git/drivers/pci/pci.c	2012-12-06 10:57:31.541230913 +0800
@@ -1473,12 +1473,15 @@
 		dev->pme_poll = false;
 
 	if (pci_check_pme_status(dev)) {
+		if (pme_poll_reset)
+			dev_info(&dev->dev, "pme wakeup\n");
+		else
+			dev_info(&dev->dev, "poll wakeup\n");
 		pci_wakeup_event(dev);
 		pm_request_resume(&dev->dev);
 	}
 	return 0;
 }
-
 /**
  * pci_pme_wakeup_bus - Walk given bus and wake up devices on it, if necessary.
  * @bus: Top bus of the subtree to walk.
Index: linux.git/drivers/pci/pci-acpi.c
===================================================================
--- linux.git.orig/drivers/pci/pci-acpi.c	2012-12-06 10:57:31.485231614 +0800
+++ linux.git/drivers/pci/pci-acpi.c	2012-12-06 10:57:31.542230901 +0800
@@ -56,6 +56,7 @@
 
 	if (!pci_dev->pm_cap || !pci_dev->pme_support
 	     || pci_check_pme_status(pci_dev)) {
+		dev_info(&pci_dev->dev, "pme wakeup\n");
 		if (pci_dev->pme_poll)
 			pci_dev->pme_poll = false;
 
Index: linux.git/drivers/pci/pcie/pme.c
===================================================================
--- linux.git.orig/drivers/pci/pcie/pme.c	2012-12-06 10:57:31.485231614 +0800
+++ linux.git/drivers/pci/pcie/pme.c	2012-12-06 10:57:31.542230901 +0800
@@ -79,6 +79,7 @@
 	list_for_each_entry(dev, &bus->devices, bus_list) {
 		/* Skip PCIe devices in case we started from a root port. */
 		if (!pci_is_pcie(dev) && pci_check_pme_status(dev)) {
+			dev_info(&dev->dev, "pme wakeup\n");
 			if (dev->pme_poll)
 				dev->pme_poll = false;
 
@@ -144,6 +145,7 @@
 			port->pme_poll = false;
 
 		if (pci_check_pme_status(port)) {
+			dev_info(&dev->dev, "pme wakeup\n");
 			pm_request_resume(&port->dev);
 			found = true;
 		} else {
@@ -188,6 +190,7 @@
 		/* The device is there, but we have to check its PME status. */
 		found = pci_check_pme_status(dev);
 		if (found) {
+			dev_info(&dev->dev, "pme wakeup\n");
 			if (dev->pme_poll)
 				dev->pme_poll = false;