If we built the kernel targeting the microMIPS ISA then the very fact that the kernel is running implies that the CPU supports microMIPS. Thus we can hardcode cpu_has_mmips to 1 allowing the compiler greater scope for optimisation due to the compile-time constant. Signed-off-by: Paul Burton <paul.burton@xxxxxxxx> --- arch/mips/include/asm/cpu-features.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 0edba3e75747..8669fdb503a5 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -195,7 +195,9 @@ #endif #ifndef cpu_has_mmips -# ifdef CONFIG_SYS_SUPPORTS_MICROMIPS +# if defined(__mips_micromips) +# define cpu_has_mmips 1 +# elif defined(CONFIG_SYS_SUPPORTS_MICROMIPS) # define cpu_has_mmips __opt(MIPS_CPU_MICROMIPS) # else # define cpu_has_mmips 0 -- 2.19.1
