treewide: Add SPDX license identifier - Kbuild

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

      GPL-2.0

Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arch/alpha/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += unistd_32.h

arch/arc/Kbuild

@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += kernel/
 obj-y += mm/

arch/arc/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += ucontext.h

arch/arm/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += compat.h
 generic-y += current.h
 generic-y += early_ioremap.h

arch/arm64/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += bugs.h
 generic-y += delay.h
 generic-y += div64.h

arch/c6x/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += atomic.h
 generic-y += barrier.h
 generic-y += bugs.h

arch/c6x/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += ucontext.h

arch/csky/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += asm-offsets.h
 generic-y += bugs.h
 generic-y += compat.h

arch/csky/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += ucontext.h

arch/h8300/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += asm-offsets.h
 generic-y += barrier.h
 generic-y += bugs.h

arch/h8300/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += ucontext.h

arch/hexagon/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += ucontext.h

arch/ia64/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += syscall_table.h
 generic-y += compat.h
 generic-y += exec.h

arch/ia64/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += unistd_64.h

arch/m68k/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += syscall_table.h
 generic-y += barrier.h
 generic-y += compat.h

arch/m68k/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += unistd_32.h

arch/microblaze/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += syscall_table.h
 generic-y += barrier.h
 generic-y += bitops.h

arch/microblaze/include/uapi/asm/Kbuild

@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += unistd_32.h
 generic-y += ucontext.h

arch/mips/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Fail on warnings - also for files referenced in subdirs
 # -Werror can be disabled for specific files using:
 # CFLAGS_<file.o> := -Wno-error

arch/mips/Kbuild.platforms

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # All platforms listed in alphabetic order
 
 platforms += alchemy

arch/mips/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # MIPS headers
 generated-y += syscall_table_32_o32.h
 generated-y += syscall_table_64_n32.h

arch/mips/include/uapi/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += unistd_n32.h
 generated-y += unistd_n64.h
 generated-y += unistd_o32.h

arch/nds32/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += asm-offsets.h
 generic-y += atomic.h
 generic-y += bitops.h

arch/nds32/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += ucontext.h

arch/nios2/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += atomic.h
 generic-y += barrier.h
 generic-y += bitops.h

arch/nios2/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += ucontext.h

arch/openrisc/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += barrier.h
 generic-y += bug.h
 generic-y += bugs.h

arch/openrisc/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += ucontext.h

arch/parisc/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += syscall_table_32.h
 generated-y += syscall_table_64.h
 generated-y += syscall_table_c32.h

arch/parisc/include/uapi/asm/Kbuild

@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += unistd_32.h
 generated-y += unistd_64.h

arch/powerpc/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
 obj-y += kernel/

arch/powerpc/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += syscall_table_32.h
 generated-y += syscall_table_64.h
 generated-y += syscall_table_c32.h

arch/powerpc/include/uapi/asm/Kbuild

@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += unistd_32.h
 generated-y += unistd_64.h

arch/riscv/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += bugs.h
 generic-y += checksum.h
 generic-y += compat.h

arch/riscv/include/uapi/asm/Kbuild

@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0

arch/sparc/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # core part of the sparc kernel
 #

arch/sparc/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # User exported sparc header files
 
 generated-y += syscall_table_32.h

arch/sparc/include/uapi/asm/Kbuild

@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += unistd_32.h
 generated-y += unistd_64.h

arch/um/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += barrier.h
 generic-y += bpf_perf_event.h
 generic-y += bug.h

arch/unicore32/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += atomic.h
 generic-y += bugs.h
 generic-y += compat.h

arch/unicore32/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += ucontext.h

arch/x86/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += entry/
 
 obj-$(CONFIG_PERF_EVENTS) += events/

arch/x86/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 
 generated-y += syscalls_32.h

arch/x86/include/uapi/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += unistd_32.h
 generated-y += unistd_64.h
 generated-y += unistd_x32.h

arch/xtensa/include/asm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += syscall_table.h
 generic-y += bug.h
 generic-y += compat.h

arch/xtensa/include/uapi/asm/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 generated-y += unistd_32.h

drivers/gpu/drm/nouveau/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y += -I $(srctree)/$(src)/include
 ccflags-y += -I $(srctree)/$(src)/include/nvkm
 ccflags-y += -I $(srctree)/$(src)/nvkm

drivers/gpu/drm/nouveau/dispnv04/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nouveau-y += dispnv04/arb.o
 nouveau-y += dispnv04/crtc.o
 nouveau-y += dispnv04/cursor.o

drivers/gpu/drm/nouveau/dispnv50/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nouveau-y += dispnv50/disp.o
 nouveau-y += dispnv50/lut.o
 

drivers/gpu/drm/nouveau/nvif/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvif-y := nvif/object.o
 nvif-y += nvif/client.o
 nvif-y += nvif/device.o

drivers/gpu/drm/nouveau/nvkm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 include $(src)/nvkm/core/Kbuild
 include $(src)/nvkm/falcon/Kbuild
 include $(src)/nvkm/subdev/Kbuild

drivers/gpu/drm/nouveau/nvkm/core/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y := nvkm/core/client.o
 nvkm-y += nvkm/core/engine.o
 nvkm-y += nvkm/core/enum.o

drivers/gpu/drm/nouveau/nvkm/engine/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/falcon.o
 nvkm-y += nvkm/engine/xtensa.o
 

drivers/gpu/drm/nouveau/nvkm/engine/bsp/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/bsp/g84.o

drivers/gpu/drm/nouveau/nvkm/engine/ce/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/ce/gt215.o
 nvkm-y += nvkm/engine/ce/gf100.o
 nvkm-y += nvkm/engine/ce/gk104.o

drivers/gpu/drm/nouveau/nvkm/engine/cipher/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/cipher/g84.o

drivers/gpu/drm/nouveau/nvkm/engine/device/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/device/acpi.o
 nvkm-y += nvkm/engine/device/base.o
 nvkm-y += nvkm/engine/device/ctrl.o

drivers/gpu/drm/nouveau/nvkm/engine/disp/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/disp/base.o
 nvkm-y += nvkm/engine/disp/nv04.o
 nvkm-y += nvkm/engine/disp/nv50.o

drivers/gpu/drm/nouveau/nvkm/engine/dma/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/dma/base.o
 nvkm-y += nvkm/engine/dma/nv04.o
 nvkm-y += nvkm/engine/dma/nv50.o

drivers/gpu/drm/nouveau/nvkm/engine/fifo/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/fifo/base.o
 nvkm-y += nvkm/engine/fifo/nv04.o
 nvkm-y += nvkm/engine/fifo/nv10.o

drivers/gpu/drm/nouveau/nvkm/engine/gr/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/gr/base.o
 nvkm-y += nvkm/engine/gr/nv04.o
 nvkm-y += nvkm/engine/gr/nv10.o

drivers/gpu/drm/nouveau/nvkm/engine/mpeg/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/mpeg/nv31.o
 nvkm-y += nvkm/engine/mpeg/nv40.o
 nvkm-y += nvkm/engine/mpeg/nv44.o

drivers/gpu/drm/nouveau/nvkm/engine/msenc/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 #nvkm-y += nvkm/engine/msenc/base.o

drivers/gpu/drm/nouveau/nvkm/engine/mspdec/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/mspdec/base.o
 nvkm-y += nvkm/engine/mspdec/g98.o
 nvkm-y += nvkm/engine/mspdec/gt215.o

drivers/gpu/drm/nouveau/nvkm/engine/msppp/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/msppp/base.o
 nvkm-y += nvkm/engine/msppp/g98.o
 nvkm-y += nvkm/engine/msppp/gt215.o

drivers/gpu/drm/nouveau/nvkm/engine/msvld/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/msvld/base.o
 nvkm-y += nvkm/engine/msvld/g98.o
 nvkm-y += nvkm/engine/msvld/gt215.o

drivers/gpu/drm/nouveau/nvkm/engine/nvdec/Kbuild

@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/nvdec/base.o
 nvkm-y += nvkm/engine/nvdec/gp102.o

drivers/gpu/drm/nouveau/nvkm/engine/nvenc/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 #nvkm-y += nvkm/engine/nvenc/base.o

drivers/gpu/drm/nouveau/nvkm/engine/pm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/pm/base.o
 nvkm-y += nvkm/engine/pm/nv40.o
 nvkm-y += nvkm/engine/pm/nv50.o

drivers/gpu/drm/nouveau/nvkm/engine/sec/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/sec/g98.o

drivers/gpu/drm/nouveau/nvkm/engine/sec2/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/sec2/base.o
 nvkm-y += nvkm/engine/sec2/gp102.o
 nvkm-y += nvkm/engine/sec2/tu102.o

drivers/gpu/drm/nouveau/nvkm/engine/sw/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/sw/base.o
 nvkm-y += nvkm/engine/sw/nv04.o
 nvkm-y += nvkm/engine/sw/nv10.o

drivers/gpu/drm/nouveau/nvkm/engine/vic/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 #nvkm-y += nvkm/engine/vic/base.o

drivers/gpu/drm/nouveau/nvkm/engine/vp/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/engine/vp/g84.o

drivers/gpu/drm/nouveau/nvkm/falcon/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/falcon/base.o
 nvkm-y += nvkm/falcon/v1.o
 nvkm-y += nvkm/falcon/msgqueue.o

drivers/gpu/drm/nouveau/nvkm/subdev/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 include $(src)/nvkm/subdev/bar/Kbuild
 include $(src)/nvkm/subdev/bios/Kbuild
 include $(src)/nvkm/subdev/bus/Kbuild

drivers/gpu/drm/nouveau/nvkm/subdev/bar/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/bar/base.o
 nvkm-y += nvkm/subdev/bar/nv50.o
 nvkm-y += nvkm/subdev/bar/g84.o

drivers/gpu/drm/nouveau/nvkm/subdev/bios/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/bios/base.o
 nvkm-y += nvkm/subdev/bios/bit.o
 nvkm-y += nvkm/subdev/bios/boost.o

drivers/gpu/drm/nouveau/nvkm/subdev/bus/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/bus/base.o
 nvkm-y += nvkm/subdev/bus/hwsq.o
 nvkm-y += nvkm/subdev/bus/nv04.o

drivers/gpu/drm/nouveau/nvkm/subdev/clk/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/clk/base.o
 nvkm-y += nvkm/subdev/clk/nv04.o
 nvkm-y += nvkm/subdev/clk/nv40.o

drivers/gpu/drm/nouveau/nvkm/subdev/devinit/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/devinit/base.o
 nvkm-y += nvkm/subdev/devinit/nv04.o
 nvkm-y += nvkm/subdev/devinit/nv05.o

drivers/gpu/drm/nouveau/nvkm/subdev/fault/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/fault/base.o
 nvkm-y += nvkm/subdev/fault/user.o
 nvkm-y += nvkm/subdev/fault/gp100.o

drivers/gpu/drm/nouveau/nvkm/subdev/fb/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/fb/base.o
 nvkm-y += nvkm/subdev/fb/nv04.o
 nvkm-y += nvkm/subdev/fb/nv10.o

drivers/gpu/drm/nouveau/nvkm/subdev/fuse/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/fuse/base.o
 nvkm-y += nvkm/subdev/fuse/nv50.o
 nvkm-y += nvkm/subdev/fuse/gf100.o

drivers/gpu/drm/nouveau/nvkm/subdev/gpio/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/gpio/base.o
 nvkm-y += nvkm/subdev/gpio/nv10.o
 nvkm-y += nvkm/subdev/gpio/nv50.o

drivers/gpu/drm/nouveau/nvkm/subdev/gsp/Kbuild

@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/gsp/gv100.o

drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/i2c/base.o
 nvkm-y += nvkm/subdev/i2c/nv04.o
 nvkm-y += nvkm/subdev/i2c/nv4e.o

drivers/gpu/drm/nouveau/nvkm/subdev/ibus/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/ibus/gf100.o
 nvkm-y += nvkm/subdev/ibus/gf117.o
 nvkm-y += nvkm/subdev/ibus/gk104.o

drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/Kbuild

@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/iccsense/base.o
 nvkm-y += nvkm/subdev/iccsense/gf100.o

drivers/gpu/drm/nouveau/nvkm/subdev/instmem/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/instmem/base.o
 nvkm-y += nvkm/subdev/instmem/nv04.o
 nvkm-y += nvkm/subdev/instmem/nv40.o

drivers/gpu/drm/nouveau/nvkm/subdev/ltc/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/ltc/base.o
 nvkm-y += nvkm/subdev/ltc/gf100.o
 nvkm-y += nvkm/subdev/ltc/gk104.o

drivers/gpu/drm/nouveau/nvkm/subdev/mc/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/mc/base.o
 nvkm-y += nvkm/subdev/mc/nv04.o
 nvkm-y += nvkm/subdev/mc/nv11.o

drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/mmu/base.o
 nvkm-y += nvkm/subdev/mmu/nv04.o
 nvkm-y += nvkm/subdev/mmu/nv41.o

drivers/gpu/drm/nouveau/nvkm/subdev/mxm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/mxm/base.o
 nvkm-y += nvkm/subdev/mxm/mxms.o
 nvkm-y += nvkm/subdev/mxm/nv50.o

drivers/gpu/drm/nouveau/nvkm/subdev/pci/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/pci/agp.o
 nvkm-y += nvkm/subdev/pci/base.o
 nvkm-y += nvkm/subdev/pci/pcie.o

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/pmu/base.o
 nvkm-y += nvkm/subdev/pmu/memx.o
 nvkm-y += nvkm/subdev/pmu/gt215.o

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/secboot/base.o
 nvkm-y += nvkm/subdev/secboot/hs_ucode.o
 nvkm-y += nvkm/subdev/secboot/ls_ucode_gr.o

drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/therm/base.o
 nvkm-y += nvkm/subdev/therm/fan.o
 nvkm-y += nvkm/subdev/therm/fannil.o

drivers/gpu/drm/nouveau/nvkm/subdev/timer/Kbuild

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/timer/base.o
 nvkm-y += nvkm/subdev/timer/nv04.o
 nvkm-y += nvkm/subdev/timer/nv40.o

drivers/gpu/drm/nouveau/nvkm/subdev/top/Kbuild

@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
 nvkm-y += nvkm/subdev/top/base.o
 nvkm-y += nvkm/subdev/top/gk104.o