Re: [PATCH 4/4] x86/cpu: Use SERIALIZE in sync_core() when available

[peterz]

On Sun, Jul 26, 2020 at 09:31:32PM -0700, Ricardo Neri wrote:
> +static inline void serialize(void)
> +{
> +	asm volatile(".byte 0xf, 0x1, 0xe8");
> +}

Can we pretty please have a comment with the binutils version that has
the mnomic? Such that when we increase the required binutils version we
can grep for this.