Defined in 3 files as a macro:

• arch/mips/include/asm/io.h, line 15 (as a macro)
• arch/powerpc/include/asm/io.h, line 6 (as a macro)
• arch/x86/include/asm/io.h, line 38 (as a macro)

Referenced in 2 files:

• drivers/net/ethernet/sfc/io.h, line 73
• include/asm-generic/iomap.h, line 96