Defined in 4 files as a enum:

• Documentation/devicetree/bindings/net/btusb.txt, line 636 (as a enum)
• arch/arm/boot/dts/aspeed/aspeed-g4.dtsi, line 330 (as a enum)
• drivers/clk/mediatek/clk-mt8196-vlpckgen.c, line 308 (as a enum)
• include/linux/slab.h, line 636 (as a enum)

Referenced in 3 files:

• Documentation/devicetree/bindings/net/btusb.txt, line 674
• Documentation/userspace-api/media/v4l/yuv-formats.rst
  • line 905
  • line 957
• mm/kfence/kfence_test.c
  • line 217
  • line 288