Re: [PATCH 01/15] x86/split_lock: Add CONFIG and enumerate #AC exception for split locked access feature

[Dave Hansen]

On 05/14/2018 11:52 AM, Fenghua Yu wrote:
> +#include <linux/printk.h>
> +#include <asm/msr.h>
> +
> +static bool split_lock_ac_supported;

Was there a reason not to use an X86_FEATURE* bit for this?