powerpc/eeh: Build EEH event based on PE

The original implementation builds EEH event based on EEH device.
We already had dedicated struct to depict PE. It's reasonable to
build EEH event based on PE.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/eeh_event.h

@@ -28,10 +28,10 @@
  */
 struct eeh_event {
 	struct list_head	list;	/* to form event queue	*/
-	struct eeh_dev		*edev;	/* EEH device		*/
+	struct eeh_pe		*pe;	/* EEH PE		*/
 };
 
-int eeh_send_failure_event(struct eeh_dev *edev);
+int eeh_send_failure_event(struct eeh_pe *pe);
 struct eeh_dev *handle_eeh_events(struct eeh_event *);
 
 #endif /* __KERNEL__ */

arch/powerpc/platforms/pseries/eeh_event.c

@@ -119,36 +119,23 @@ static void eeh_thread_launcher(struct work_struct *dummy)
 
 /**
  * eeh_send_failure_event - Generate a PCI error event
- * @edev: EEH device
+ * @pe: EEH PE
  *
  * This routine can be called within an interrupt context;
  * the actual event will be delivered in a normal context
  * (from a workqueue).
  */
-int eeh_send_failure_event(struct eeh_dev *edev)
+int eeh_send_failure_event(struct eeh_pe *pe)
 {
 	unsigned long flags;
 	struct eeh_event *event;
-	struct device_node *dn = eeh_dev_to_of_node(edev);
-	const char *location;
-
-	if (!mem_init_done) {
-		printk(KERN_ERR "EEH: event during early boot not handled\n");
-		location = of_get_property(dn, "ibm,loc-code", NULL);
-		printk(KERN_ERR "EEH: device node = %s\n", dn->full_name);
-		printk(KERN_ERR "EEH: PCI location = %s\n", location);
-		return 1;
-	}
-	event = kzalloc(sizeof(*event), GFP_ATOMIC);
-	if (event == NULL) {
-		printk(KERN_ERR "EEH: out of memory, event not handled\n");
-		return 1;
- 	}
-
-	if (edev->pdev)
-		pci_dev_get(edev->pdev);
 
-	event->edev = edev;
+	event = kzalloc(sizeof(*event), GFP_ATOMIC);
+	if (!event) {
+		pr_err("EEH: out of memory, event not handled\n");
+		return -ENOMEM;
+	}
+	event->pe = pe;
 
 	/* We may or may not be called in an interrupt context */
 	spin_lock_irqsave(&eeh_eventlist_lock, flags);