Re: [PATCH] x86: static_cpu_has_safe: discard dynamic check after init

[H. Peter Anvin]

On 01/20/16 07:01, Borislav Petkov wrote:
> On Tue, Jan 19, 2016 at 08:02:01PM -0800, H. Peter Anvin wrote:
>>      ... "i" (1 << (bit & 7)),
>>          "m" (((const char *)boot_cpu_data->x86_capability)[bit >> 3]) ...
> 
> Nice!
> 
> I was going to do:
> 
>               "i" (1 << (bit & 31)),
>                 "m" (((boot_cpu_data->x86_capability)[bit >> 5]))
> 

But then you're using testl and get long immediates.

(And the parentheses around boot_cpu_data->x86_capability are redundant.)

        -hpa