return_used 48 drivers/acpi/acpica/acstruct.h u8 return_used; return_used 618 drivers/acpi/acpica/dsmethod.c walk_state->return_used, return_used 632 drivers/acpi/acpica/dsmethod.c if (walk_state->return_used) { return_used 379 drivers/acpi/acpica/psparse.c walk_state->return_used =