Re: [patch V2 14/52] x86/fpu: Make copy_xstate_to_kernel() usable for [x]fpregs_get()
From: Thomas Gleixner
Date: Thu Jun 17 2021 - 08:42:49 EST
On Wed, Jun 16 2021 at 18:13, Borislav Petkov wrote:
> On Mon, Jun 14, 2021 at 05:44:22PM +0200, Thomas Gleixner wrote:
>> When xsave with init state optimiziation is used then a component's state
>> @@ -1062,14 +1062,20 @@ static void copy_feature(bool from_xstat
>> membuf_write(to, from_xstate ? xstate : init_xstate, size);
>> - * Convert from kernel XSAVE or XSAVES compacted format to UABI
>> - * non-compacted format and copy to a kernel-space ptrace buffer.
>> + * copy_uabi_xstate_to_membuf - Copy kernel saved xstate to a UABI buffer
> If this is what it does, then the function should be called:
> or so.
> "membuf" is only an implementation detail anyway. IMHO.
Yes. Makes sense. Fixed.