Re: [RFC PATCH 7/8] crypto: x86/aes-kl - Support AES algorithm using Key Locker instructions

[Peter Zijlstra]

On Fri, Dec 18, 2020 at 10:34:28AM +0000, Bae, Chang Seok wrote:
> 
> > On Dec 18, 2020, at 19:11, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> > 
> > *groan*, so what actual version of binutils is needed and why is this
> > driver important enough to build on ancient crud to warrant all this
> > gunk?
> 
> The new Key Locker instructions look to be added a few month ago [1].
> But the latest binutils release (2.35.1) does not include them yet.
> 
> I’m open to drop the macros if there is any better way to define them
> without binutils support.

It's just a driver, make it depend on binutils having the instructions.