Re: [RFC PATCH 01/11] x86,fpu: document the data structures a little

[Dave Hansen]

On 01/11/2015 01:46 PM, riel@xxxxxxxxxx wrote:
> +/*
> + * The FPU state used depends on the capabilities of the hardware; the
> + * registers used for vector instructions on newer hardware are included
> + * in the FPU state.
> + */
>  union thread_xstate {

Tiny nit, if you happen to revise this set at some point...

While you probably don't need/want to have an exhaustive list of
everything that gets saved in there, we should probably still mention
that it's a lot more than just vector instructions.

I'd say:

	The FPU state used depends on the capabilities of the
	hardware.  This state increasingly contains things
	not related to the FPU itself, like registers used for
	vector instructions.
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