return_length     127 drivers/acpi/acpica/acinterp.h acpi_ex_get_protocol_buffer_length(u32 protocol_id, u32 *return_length);
return_length      72 drivers/acpi/acpica/exfield.c acpi_ex_get_protocol_buffer_length(u32 protocol_id, u32 *return_length)
return_length      84 drivers/acpi/acpica/exfield.c 	*return_length = acpi_protocol_lengths[protocol_id];