Merge branch 'pci/hotplug'

- Simplify Attention Button logging (Bjorn Helgaas)

- Cancel bringup sequence if card is not present, to keep from blinking
  Power Indicator indefinitely (Rongguang Wei)

- Reassign bridge resources if necessary for ACPI hotplug (Igor Mammedov)

* pci/hotplug:
  PCI: acpiphp: Reassign resources on bridge if necessary
  PCI: pciehp: Cancel bringup sequence if card is not present
  PCI: pciehp: Simplify Attention Button logging

Author: bjorn-helgaas

drivers/pci/hotplug/acpiphp_glue.c

@@ -498,7 +498,6 @@ static void enable_slot(struct acpiphp_slot *slot, bool bridge)
 				acpiphp_native_scan_bridge(dev);
 		}
 	} else {
-		LIST_HEAD(add_list);
 		int max, pass;
 
 		acpiphp_rescan_slot(slot);
@@ -512,12 +511,10 @@ static void enable_slot(struct acpiphp_slot *slot, bool bridge)
 				if (pass && dev->subordinate) {
 					check_hotplug_bridge(slot, dev);
 					pcibios_resource_survey_bus(dev->subordinate);
-					__pci_bus_size_bridges(dev->subordinate,
-							       &add_list);
 				}
 			}
 		}
-		__pci_bus_assign_resources(bus, &add_list, NULL);
+		pci_assign_unassigned_bridge_resources(bus->self);
 	}
 
 	acpiphp_sanitize_bus(bus);

drivers/pci/hotplug/pciehp_ctrl.c

@@ -166,11 +166,11 @@ void pciehp_handle_button_press(struct controller *ctrl)
 	case ON_STATE:
 		if (ctrl->state == ON_STATE) {
 			ctrl->state = BLINKINGOFF_STATE;
-			ctrl_info(ctrl, "Slot(%s): Powering off due to button press\n",
+			ctrl_info(ctrl, "Slot(%s): Button press: will power off in 5 sec\n",
 				  slot_name(ctrl));
 		} else {
 			ctrl->state = BLINKINGON_STATE;
-			ctrl_info(ctrl, "Slot(%s) Powering on due to button press\n",
+			ctrl_info(ctrl, "Slot(%s): Button press: will power on in 5 sec\n",
 				  slot_name(ctrl));
 		}
 		/* blink power indicator and turn off attention */
@@ -185,22 +185,23 @@ void pciehp_handle_button_press(struct controller *ctrl)
 		 * press the attention again before the 5 sec. limit
 		 * expires to cancel hot-add or hot-remove
 		 */
-		ctrl_info(ctrl, "Slot(%s): Button cancel\n", slot_name(ctrl));
 		cancel_delayed_work(&ctrl->button_work);
 		if (ctrl->state == BLINKINGOFF_STATE) {
 			ctrl->state = ON_STATE;
 			pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_ON,
 					      PCI_EXP_SLTCTL_ATTN_IND_OFF);
+			ctrl_info(ctrl, "Slot(%s): Button press: canceling request to power off\n",
+				  slot_name(ctrl));
 		} else {
 			ctrl->state = OFF_STATE;
 			pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_OFF,
 					      PCI_EXP_SLTCTL_ATTN_IND_OFF);
+			ctrl_info(ctrl, "Slot(%s): Button press: canceling request to power on\n",
+				  slot_name(ctrl));
 		}
-		ctrl_info(ctrl, "Slot(%s): Action canceled due to button press\n",
-			  slot_name(ctrl));
 		break;
 	default:
-		ctrl_err(ctrl, "Slot(%s): Ignoring invalid state %#x\n",
+		ctrl_err(ctrl, "Slot(%s): Button press: ignoring invalid state %#x\n",
 			 slot_name(ctrl), ctrl->state);
 		break;
 	}
@@ -256,6 +257,14 @@ void pciehp_handle_presence_or_link_change(struct controller *ctrl, u32 events)
 	present = pciehp_card_present(ctrl);
 	link_active = pciehp_check_link_active(ctrl);
 	if (present <= 0 && link_active <= 0) {
+		if (ctrl->state == BLINKINGON_STATE) {
+			ctrl->state = OFF_STATE;
+			cancel_delayed_work(&ctrl->button_work);
+			pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_OFF,
+					      INDICATOR_NOOP);
+			ctrl_info(ctrl, "Slot(%s): Card not present\n",
+				  slot_name(ctrl));
+		}
 		mutex_unlock(&ctrl->state_lock);
 		return;
 	}

drivers/pci/hotplug/pciehp_hpc.c

@@ -722,11 +722,8 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id)
 	}
 
 	/* Check Attention Button Pressed */
-	if (events & PCI_EXP_SLTSTA_ABP) {
-		ctrl_info(ctrl, "Slot(%s): Attention button pressed\n",
-			  slot_name(ctrl));
+	if (events & PCI_EXP_SLTSTA_ABP)
 		pciehp_handle_button_press(ctrl);
-	}
 
 	/* Check Power Fault Detected */
 	if (events & PCI_EXP_SLTSTA_PFD) {