linux-kernel - Re: [patch V3 33/66] x86/fpu: Rename copy_fpregs_to_fpstate() to save_fpregs_to

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Date:   Tue, 22 Jun 2021 12:16:20 +0200
From:   Borislav Petkov <bp@...e.de>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Andy Lutomirski <luto@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Tony Luck <tony.luck@...el.com>,
        Yu-cheng Yu <yu-cheng.yu@...el.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Kan Liang <kan.liang@...ux.intel.com>
Subject: Re: [patch V3 33/66] x86/fpu: Rename copy_fpregs_to_fpstate() to
 save_fpregs_to_fpstate()

On Fri, Jun 18, 2021 at 04:18:56PM +0200, Thomas Gleixner wrote:
> A copy is guaranteed to leave the source intact, which is not the case when
> FNSAVE is used as that reinitilizes the registers.
> 
> Save does not make such guarantees and it matches what this is about,
> i.e. to save the state for a later restore.
> 
> Rename it to save_fpregs_to_fpstate(). 
> 
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> ---
>  arch/x86/include/asm/fpu/internal.h |    4 ++--
>  arch/x86/kernel/fpu/core.c          |   10 +++++-----
>  arch/x86/kvm/x86.c                  |    2 +-
>  3 files changed, 8 insertions(+), 8 deletions(-)

Reviewed-by: Borislav Petkov <bp@...e.de>

-- 
Regards/Gruss,
    Boris.

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