linux-kernel - Re: [patch V3 40/66] x86/fpu: Rename and sanitize fpu_

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Date:   Tue, 22 Jun 2021 15:51:53 +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 40/66] x86/fpu: Rename and sanitize fpu__save/copy()

On Fri, Jun 18, 2021 at 04:19:03PM +0200, Thomas Gleixner wrote:
> Both functions are misnomed.

"Both function names are a misnomer." or simply
"Both function are not named optimally."

> -int fpu__copy(struct task_struct *dst, struct task_struct *src)
> +/* Clone current's FPU state on fork */
> +int fpu_clone(struct task_struct *dst)
>  {
> +	struct fpu *src_fpu = &current->thread.fpu;
>  	struct fpu *dst_fpu = &dst->thread.fpu;
> -	struct fpu *src_fpu = &src->thread.fpu;
>  
> +	/* The new task's FPU state cannot be valid in the hardware. */
>  	dst_fpu->last_cpu = -1;
>  
>  	if (!static_cpu_has(X86_FEATURE_FPU))

cpu_feature_enabled

while at it.

Regardless, looks nice.

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

-- 
Regards/Gruss,
    Boris.

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