Defined in 4 files as a macro:

• include/asm-generic/signal.h, line 18 (as a macro)
• include/asm-mips/signal.h, line 131 (as a macro)
• include/asm-parisc/signal.h, line 98 (as a macro)
• include/asm-xtensa/signal.h, line 133 (as a macro)

Referenced in 6 files:

• Documentation/sound/alsa/ControlNames.txt, line 259
• Documentation/usb/dma.txt, line 525
• include/asm-ia64/byteorder.h, line 701
• include/asm-m68k/macints.h, line 701
• include/asm-m68knommu/mc146818rtc.h, line 531
• include/linux/videotext.h, line 711