15 static long __init parse_acpi_path(const struct efi_dev_path *node,  in parse_acpi_path()  argument
24 	if (node->header.length != 12)  in parse_acpi_path()
28 		'A' + ((node->acpi.hid >> 10) & 0x1f) - 1,  in parse_acpi_path()
29 		'A' + ((node->acpi.hid >>  5) & 0x1f) - 1,  in parse_acpi_path()
30 		'A' + ((node->acpi.hid >>  0) & 0x1f) - 1,  in parse_acpi_path()
31 			node->acpi.hid >> 16);  in parse_acpi_path()
35 		if (ret == 0 && node->acpi.uid == uid)  in parse_acpi_path()
37 		if (ret == -ENODATA && node->acpi.uid == 0)  in parse_acpi_path()
60 static long __init parse_pci_path(const struct efi_dev_path *node,  in parse_pci_path()  argument
65 	if (node->header.length != 6)  in parse_pci_path()
70 	devfn = PCI_DEVFN(node->pci.dev, node->pci.fn);  in parse_pci_path()
96 static long __init parse_end_path(const struct efi_dev_path *node,  in parse_end_path()  argument
99 	if (node->header.length != 4)  in parse_end_path()
101 	if (node->header.sub_type != EFI_DEV_END_INSTANCE &&  in parse_end_path()
102 	    node->header.sub_type != EFI_DEV_END_ENTIRE)  in parse_end_path()
108 	return node->header.sub_type;  in parse_end_path()
147 struct device * __init efi_get_device_by_path(const struct efi_dev_path **node,  in efi_get_device_by_path()  argument
157 		if (*len < 4 || *len < (*node)->header.length)  in efi_get_device_by_path()
159 		else if ((*node)->header.type		== EFI_DEV_ACPI &&  in efi_get_device_by_path()
160 			 (*node)->header.sub_type	== EFI_DEV_BASIC_ACPI)  in efi_get_device_by_path()
161 			ret = parse_acpi_path(*node, parent, &child);  in efi_get_device_by_path()
162 		else if ((*node)->header.type		== EFI_DEV_HW &&  in efi_get_device_by_path()
163 			 (*node)->header.sub_type	== EFI_DEV_PCI)  in efi_get_device_by_path()
164 			ret = parse_pci_path(*node, parent, &child);  in efi_get_device_by_path()
165 		else if (((*node)->header.type		== EFI_DEV_END_PATH ||  in efi_get_device_by_path()
166 			  (*node)->header.type		== EFI_DEV_END_PATH2))  in efi_get_device_by_path()
167 			ret = parse_end_path(*node, parent, &child);  in efi_get_device_by_path()
176 		*node  = (void *)*node + (*node)->header.length;  in efi_get_device_by_path()
177 		*len  -= (*node)->header.length;  in efi_get_device_by_path()