disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/pci/hotplug/acpiphp_glue.c
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@@ -5,7 +5,7 @@
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  * Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
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  * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
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  * Copyright (C) 2002,2003 NEC Corporation
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- * Copyright (C) 2003-2005 Matthew Wilcox (matthew.wilcox@hp.com)
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+ * Copyright (C) 2003-2005 Matthew Wilcox (willy@infradead.org)
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  * Copyright (C) 2003-2005 Hewlett Packard
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  * Copyright (C) 2005 Rajesh Shah (rajesh.shah@intel.com)
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  * Copyright (C) 2005 Intel Corporation
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@@ -393,19 +393,12 @@
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 static void acpiphp_set_acpi_region(struct acpiphp_slot *slot)
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 {
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 	struct acpiphp_func *func;
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-	union acpi_object params[2];
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-	struct acpi_object_list arg_list;
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 	list_for_each_entry(func, &slot->funcs, sibling) {
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-		arg_list.count = 2;
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-		arg_list.pointer = params;
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-		params[0].type = ACPI_TYPE_INTEGER;
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-		params[0].integer.value = ACPI_ADR_SPACE_PCI_CONFIG;
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-		params[1].type = ACPI_TYPE_INTEGER;
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-		params[1].integer.value = 1;
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 		/* _REG is optional, we don't care about if there is failure */
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-		acpi_evaluate_object(func_to_handle(func), "_REG", &arg_list,
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-				     NULL);
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+		acpi_evaluate_reg(func_to_handle(func),
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+				  ACPI_ADR_SPACE_PCI_CONFIG,
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+				  ACPI_REG_CONNECT);
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 	}
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 }
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@@ -510,12 +503,15 @@
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 				if (pass && dev->subordinate) {
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 					check_hotplug_bridge(slot, dev);
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 					pcibios_resource_survey_bus(dev->subordinate);
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-					__pci_bus_size_bridges(dev->subordinate,
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-							       &add_list);
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+					if (pci_is_root_bus(bus))
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+						__pci_bus_size_bridges(dev->subordinate, &add_list);
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 				}
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 			}
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 		}
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-		__pci_bus_assign_resources(bus, &add_list, NULL);
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+		if (pci_is_root_bus(bus))
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+			__pci_bus_assign_resources(bus, &add_list, NULL);
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+		else
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+			pci_assign_unassigned_bridge_resources(bus->self);
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 	}
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 	acpiphp_sanitize_bus(bus);