Defined in 3 files as a macro:

• arch/arm64/include/asm/io.h, line 148 (as a macro)
• arch/powerpc/include/asm/io.h, line 24 (as a macro)
• include/linux/io.h, line 100 (as a macro)

Referenced in 2 files:

• drivers/char/mem.c, line 768
• include/linux/io.h, line 99