Re: UBSAN: Undefined behaviour in arch/powerpc/kernel/cputable.c

From: Meelis Roos
Date: Sun Sep 11 2016 - 03:43:11 EST


> Does this fix it?

Yes, thank you!

> diff --git a/arch/powerpc/include/asm/cpu_has_feature.h b/arch/powerpc/include/asm/cpu_has_feature.h
> index 2ef55f8968a2..b312b152461b 100644
> --- a/arch/powerpc/include/asm/cpu_has_feature.h
> +++ b/arch/powerpc/include/asm/cpu_has_feature.h
> @@ -15,7 +15,7 @@ static inline bool early_cpu_has_feature(unsigned long feature)
> #ifdef CONFIG_JUMP_LABEL_FEATURE_CHECKS
> #include <linux/jump_label.h>
>
> -#define NUM_CPU_FTR_KEYS 64
> +#define NUM_CPU_FTR_KEYS BITS_PER_LONG
>
> extern struct static_key_true cpu_feature_keys[NUM_CPU_FTR_KEYS];
>
>

--
Meelis Roos (mroos@xxxxxxxx)