drivers/sfi/Makefile - third_party/kernel - Git at Google

 # SPDX-License-Identifier: GPL-2.0-only
 obj-y	+= sfi_acpi.o
 obj-y	+= sfi_core.o
	# SPDX-License-Identifier: GPL-2.0-only
	obj-y += sfi_acpi.o
	obj-y += sfi_core.o