cpu_has_nan_2008  535 arch/mips/include/asm/cpu-features.h #define cpu_has_nan_2008	__isa_ge_or_opt(6, MIPS_CPU_NAN_2008)
cpu_has_nan_2008   88 arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h #define cpu_has_nan_2008		1