Re: [PATCH 2/2] x86/fpu: Support disabling AVX and AVX512

[Andi Kleen]

On Sat, Mar 11, 2017 at 11:46:37AM +0100, Thomas Gleixner wrote:
> > +enum xsave_features {
> > +	XSAVE_X87,
> > +	XSAVE_SSE,
> > +	XSAVE_AVX,
> > +	XSAVE_MPX_BOUNDS,
> > +	XSAVE_MPX_CSR,
> > +	XSAVE_AVX512_OPMASK,
> > +	XSAVE_AVX512_HI256,
> > +	XSAVE_AVX512_ZMM_HI256,
> > +	XSAVE_PT,
> > +	XSAVE_PKU,
> > +	XSAVE_UNKNOWN
> > +};
> 
> What's that enum for? It's unused ....

It's not.  The disable functions use it (although only the AVX parts)

-Andi